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base: chylex:main
Branches Tags
chylex:main chylex:wip-forge chylex:wip-launchers chylex:experimental/agent-shutdown chylex:experimental/agent-name-generator
..
compare: chylex:experimental/agent-name-generator
Branches Tags
chylex:main chylex:wip-forge chylex:wip-launchers chylex:experimental/agent-shutdown chylex:experimental/agent-name-generator

1 Commits
main ... experiment

Author SHA1 Message Date
chylex
0cf2975acd Automatically generate Agent names if not configured 2022-10-07 17:22:46 +02:00
636 changed files with 6151 additions and 23793 deletions
Expand all files Collapse all files

2
.config/dotnet-tools.json
View File

@@ -3,7 +3,7 @@
"isRoot": true,
"tools": {
"dotnet-ef": {
"version": "8.0.3",
"version": "7.0.0-rc.1.22426.7",
"commands": [
"dotnet-ef"
]

9
.dockerignore
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@@ -1,9 +0,0 @@
# Ignore hidden files
.*
# Include .git for build version information
!.git
# Not needed for building
AddMigration.*
*.DotSettings.user

1
.gitignore vendored
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@@ -192,6 +192,7 @@ ClientBin/
*.dbmdl
*.dbproj.schemaview
*.jfm
*.pfx
*.publishsettings
orleans.codegen.cs

13
.run/Agent 1.run.xml
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@@ -1,33 +1,28 @@
<component name="ProjectRunConfigurationManager">
<configuration default="false" name="Agent 1" type="DotNetProject" factoryName=".NET Project">
<option name="EXE_PATH" value="$PROJECT_DIR$/.artifacts/bin/Phantom.Agent/debug/Phantom.Agent.exe" />
<option name="EXE_PATH" value="$PROJECT_DIR$/Agent/Phantom.Agent/bin/Debug/net7.0/Phantom.Agent.exe" />
<option name="PROGRAM_PARAMETERS" value="" />
<option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/.workdir/Agent1" />
<option name="PASS_PARENT_ENVS" value="1" />
<envs>
<env name="AGENT_KEY" value="K5ZRZYYJ9GWM2FS6XH5N5QQ7WZRPNDGHYMN5QP7RP6PPY27KRPMSYGCN" />
<env name="AGENT_NAME" value="Agent 1" />
<env name="ALLOWED_RCON_PORTS" value="25575,27000,27001" />
<env name="ALLOWED_SERVER_PORTS" value="25565,26000,26001" />
<env name="CONTROLLER_HOST" value="localhost" />
<env name="JAVA_SEARCH_PATH" value="~/.jdks" />
<env name="MAX_INSTANCES" value="3" />
<env name="MAX_MEMORY" value="12G" />
<env name="SERVER_AUTH_TOKEN_FILE" value="./secrets/agent.token" />
<env name="SERVER_HOST" value="localhost" />
</envs>
<option name="USE_EXTERNAL_CONSOLE" value="0" />
<option name="ENV_FILE_PATHS" value="" />
<option name="REDIRECT_INPUT_PATH" value="" />
<option name="PTY_MODE" value="Auto" />
<option name="USE_MONO" value="0" />
<option name="RUNTIME_ARGUMENTS" value="" />
<option name="AUTO_ATTACH_CHILDREN" value="0" />
<option name="MIXED_MODE_DEBUG" value="0" />
<option name="PROJECT_PATH" value="$PROJECT_DIR$/Agent/Phantom.Agent/Phantom.Agent.csproj" />
<option name="PROJECT_EXE_PATH_TRACKING" value="1" />
<option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
<option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="0" />
<option name="PROJECT_KIND" value="DotNetCore" />
<option name="PROJECT_TFM" value="net9.0" />
<option name="PROJECT_TFM" value="net7.0" />
<method v="2">
<option name="Build" />
</method>

13
.run/Agent 2.run.xml
View File

@@ -1,33 +1,28 @@
<component name="ProjectRunConfigurationManager">
<configuration default="false" name="Agent 2" type="DotNetProject" factoryName=".NET Project">
<option name="EXE_PATH" value="$PROJECT_DIR$/.artifacts/bin/Phantom.Agent/debug/Phantom.Agent.exe" />
<option name="EXE_PATH" value="$PROJECT_DIR$/Agent/Phantom.Agent/bin/Debug/net7.0/Phantom.Agent.exe" />
<option name="PROGRAM_PARAMETERS" value="" />
<option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/.workdir/Agent2" />
<option name="PASS_PARENT_ENVS" value="1" />
<envs>
<env name="AGENT_KEY" value="K5ZRZYYJ9GWM2FS6XH5N5QQ7WZRPNDGHYMN5QP7RP6PPY27KRPMSYGCN" />
<env name="AGENT_NAME" value="Agent 2" />
<env name="ALLOWED_RCON_PORTS" value="27002-27006" />
<env name="ALLOWED_SERVER_PORTS" value="26002-26006" />
<env name="CONTROLLER_HOST" value="localhost" />
<env name="JAVA_SEARCH_PATH" value="~/.jdks" />
<env name="MAX_INSTANCES" value="5" />
<env name="MAX_MEMORY" value="10G" />
<env name="SERVER_AUTH_TOKEN_FILE" value="./secrets/agent.token" />
<env name="SERVER_HOST" value="localhost" />
</envs>
<option name="USE_EXTERNAL_CONSOLE" value="0" />
<option name="ENV_FILE_PATHS" value="" />
<option name="REDIRECT_INPUT_PATH" value="" />
<option name="PTY_MODE" value="Auto" />
<option name="USE_MONO" value="0" />
<option name="RUNTIME_ARGUMENTS" value="" />
<option name="AUTO_ATTACH_CHILDREN" value="0" />
<option name="MIXED_MODE_DEBUG" value="0" />
<option name="PROJECT_PATH" value="$PROJECT_DIR$/Agent/Phantom.Agent/Phantom.Agent.csproj" />
<option name="PROJECT_EXE_PATH_TRACKING" value="1" />
<option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
<option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="0" />
<option name="PROJECT_KIND" value="DotNetCore" />
<option name="PROJECT_TFM" value="net9.0" />
<option name="PROJECT_TFM" value="net7.0" />
<method v="2">
<option name="Build" />
</method>

13
.run/Agent 3.run.xml
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@@ -1,33 +1,28 @@
<component name="ProjectRunConfigurationManager">
<configuration default="false" name="Agent 3" type="DotNetProject" factoryName=".NET Project">
<option name="EXE_PATH" value="$PROJECT_DIR$/.artifacts/bin/Phantom.Agent/debug/Phantom.Agent.exe" />
<option name="EXE_PATH" value="$PROJECT_DIR$/Agent/Phantom.Agent/bin/Debug/net7.0/Phantom.Agent.exe" />
<option name="PROGRAM_PARAMETERS" value="" />
<option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/.workdir/Agent3" />
<option name="PASS_PARENT_ENVS" value="1" />
<envs>
<env name="AGENT_KEY" value="K5ZRZYYJ9GWM2FS6XH5N5QQ7WZRPNDGHYMN5QP7RP6PPY27KRPMSYGCN" />
<env name="AGENT_NAME" value="Agent 3" />
<env name="ALLOWED_RCON_PORTS" value="27007" />
<env name="ALLOWED_SERVER_PORTS" value="26007" />
<env name="CONTROLLER_HOST" value="localhost" />
<env name="JAVA_SEARCH_PATH" value="~/.jdks" />
<env name="MAX_INSTANCES" value="1" />
<env name="MAX_MEMORY" value="2560M" />
<env name="SERVER_AUTH_TOKEN_FILE" value="./secrets/agent.token" />
<env name="SERVER_HOST" value="localhost" />
</envs>
<option name="USE_EXTERNAL_CONSOLE" value="0" />
<option name="ENV_FILE_PATHS" value="" />
<option name="REDIRECT_INPUT_PATH" value="" />
<option name="PTY_MODE" value="Auto" />
<option name="USE_MONO" value="0" />
<option name="RUNTIME_ARGUMENTS" value="" />
<option name="AUTO_ATTACH_CHILDREN" value="0" />
<option name="MIXED_MODE_DEBUG" value="0" />
<option name="PROJECT_PATH" value="$PROJECT_DIR$/Agent/Phantom.Agent/Phantom.Agent.csproj" />
<option name="PROJECT_EXE_PATH_TRACKING" value="1" />
<option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
<option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="0" />
<option name="PROJECT_KIND" value="DotNetCore" />
<option name="PROJECT_TFM" value="net9.0" />
<option name="PROJECT_TFM" value="net7.0" />
<method v="2">
<option name="Build" />
</method>

4
.run/Compile Bootstrap.run.xml
View File

@@ -1,6 +1,6 @@
<component name="ProjectRunConfigurationManager">
<configuration default="false" name="Compile Bootstrap" type="js.build_tools.npm">
<package-json value="$PROJECT_DIR$/Web/Phantom.Web.Bootstrap/package.json" />
<package-json value="$PROJECT_DIR$/Server/Phantom.Server.Web.Bootstrap/package.json" />
<command value="run" />
<scripts>
<script value="compile" />
@@ -9,4 +9,4 @@
<envs />
<method v="2" />
</configuration>
</component>
</component>

8
.run/Controller + Web + Agent.run.xml
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@@ -1,8 +0,0 @@
<component name="ProjectRunConfigurationManager">
<configuration default="false" name="Controller + Web + Agent" type="CompoundRunConfigurationType">
<toRun name="Agent 1" type="DotNetProject" />
<toRun name="Controller" type="DotNetProject" />
<toRun name="Web" type="DotNetProject" />
<method v="2" />
</configuration>
</component>

7
.run/Controller + Web + Agent x3.run.xml → .run/Server + Agent x3.run.xml
View File

@@ -1,10 +1,9 @@
<component name="ProjectRunConfigurationManager">
<configuration default="false" name="Controller + Web + Agent x3" type="CompoundRunConfigurationType">
<configuration default="false" name="Server + Agent x3" type="CompoundRunConfigurationType">
<toRun name="Agent 1" type="DotNetProject" />
<toRun name="Agent 2" type="DotNetProject" />
<toRun name="Agent 3" type="DotNetProject" />
<toRun name="Controller" type="DotNetProject" />
<toRun name="Web" type="DotNetProject" />
<toRun name="Server" type="DotNetProject" />
<method v="2" />
</configuration>
</component>
</component>

7
.run/Server + Agent.run.xml Normal file
View File

@@ -0,0 +1,7 @@
<component name="ProjectRunConfigurationManager">
<configuration default="false" name="Server + Agent" type="CompoundRunConfigurationType">
<toRun name="Agent 1" type="DotNetProject" />
<toRun name="Server" type="DotNetProject" />
<method v="2" />
</configuration>
</component>

24
.run/Controller.run.xml → .run/Server.run.xml
View File

@@ -1,34 +1,30 @@
<component name="ProjectRunConfigurationManager">
<configuration default="false" name="Controller" type="DotNetProject" factoryName=".NET Project">
<option name="EXE_PATH" value="$PROJECT_DIR$/.artifacts/bin/Phantom.Controller/debug/Phantom.Controller.exe" />
<configuration default="false" name="Server" type="DotNetProject" factoryName=".NET Project">
<option name="EXE_PATH" value="$PROJECT_DIR$/Server/Phantom.Server/bin/Debug/net7.0/Phantom.Server.exe" />
<option name="PROGRAM_PARAMETERS" value="" />
<option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/.workdir/Controller" />
<option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/.workdir/Server" />
<option name="PASS_PARENT_ENVS" value="1" />
<envs>
<env name="AGENT_RPC_SERVER_HOST" value="localhost" />
<env name="ASPNETCORE_ENVIRONMENT" value="Development" />
<env name="PG_DATABASE" value="postgres" />
<env name="PG_HOST" value="localhost" />
<env name="PG_PASS" value="development" />
<env name="PG_PORT" value="9403" />
<env name="PG_PORT" value="9402" />
<env name="PG_USER" value="postgres" />
<env name="WEB_RPC_SERVER_HOST" value="localhost" />
<env name="RPC_SERVER_HOST" value="localhost" />
<env name="WEB_SERVER_HOST" value="localhost" />
</envs>
<option name="USE_EXTERNAL_CONSOLE" value="0" />
<option name="ENV_FILE_PATHS" value="" />
<option name="REDIRECT_INPUT_PATH" value="" />
<option name="PTY_MODE" value="Auto" />
<option name="USE_MONO" value="0" />
<option name="RUNTIME_ARGUMENTS" value="" />
<option name="AUTO_ATTACH_CHILDREN" value="0" />
<option name="MIXED_MODE_DEBUG" value="0" />
<option name="PROJECT_PATH" value="$PROJECT_DIR$/Controller/Phantom.Controller/Phantom.Controller.csproj" />
<option name="PROJECT_PATH" value="$PROJECT_DIR$/Server/Phantom.Server/Phantom.Server.csproj" />
<option name="PROJECT_EXE_PATH_TRACKING" value="1" />
<option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
<option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="0" />
<option name="PROJECT_KIND" value="DotNetCore" />
<option name="PROJECT_TFM" value="net9.0" />
<option name="PROJECT_TFM" value="net7.0" />
<method v="2">
<option name="Build" />
</method>
</configuration>
</component>
</component>

31
.run/Web.run.xml
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@@ -1,31 +0,0 @@
<component name="ProjectRunConfigurationManager">
<configuration default="false" name="Web" type="DotNetProject" factoryName=".NET Project">
<option name="EXE_PATH" value="$PROJECT_DIR$/.artifacts/bin/Phantom.Web/debug/Phantom.Web.exe" />
<option name="PROGRAM_PARAMETERS" value="" />
<option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/.workdir/Web" />
<option name="PASS_PARENT_ENVS" value="1" />
<envs>
<env name="ASPNETCORE_ENVIRONMENT" value="Development" />
<env name="CONTROLLER_HOST" value="localhost" />
<env name="WEB_KEY" value="T5Y722D2GZBXT2H27QS95P2YQRFB2GCTKHSWT5CZFDTFKW52TCM9GDRW" />
<env name="WEB_SERVER_HOST" value="localhost" />
</envs>
<option name="USE_EXTERNAL_CONSOLE" value="0" />
<option name="ENV_FILE_PATHS" value="" />
<option name="REDIRECT_INPUT_PATH" value="" />
<option name="PTY_MODE" value="Auto" />
<option name="USE_MONO" value="0" />
<option name="RUNTIME_ARGUMENTS" value="" />
<option name="AUTO_ATTACH_CHILDREN" value="0" />
<option name="MIXED_MODE_DEBUG" value="0" />
<option name="PROJECT_PATH" value="$PROJECT_DIR$/Web/Phantom.Web/Phantom.Web.csproj" />
<option name="PROJECT_EXE_PATH_TRACKING" value="1" />
<option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
<option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="0" />
<option name="PROJECT_KIND" value="DotNetCore" />
<option name="PROJECT_TFM" value="net9.0" />
<method v="2">
<option name="Build" />
</method>
</configuration>
</component>

2
.workdir/.gitignore vendored Normal file
View File

@@ -0,0 +1,2 @@
/Agent*/data
/Agent*/temp

2
.workdir/Agent1/.gitignore vendored
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@@ -1,2 +0,0 @@
*
!.gitignore

1
.workdir/Agent1/secrets/agent.key Normal file
View File

@@ -0,0 +1 @@
tLkn<EFBFBD>Z<EFBFBD><EFBFBD>}ы<><D18B>|~2<><32>><3E><>р<EFBFBD><D180>O*<2A> p

1
.workdir/Agent1/secrets/agent.token Normal file
View File

@@ -0,0 +1 @@
TH7Z2MJKMR975N6HFBKQP9WQFMWWN5

2
.workdir/Agent2/.gitignore vendored
View File

@@ -1,2 +0,0 @@
*
!.gitignore

1
.workdir/Agent2/secrets/agent.key Normal file
View File

@@ -0,0 +1 @@
tLkn<EFBFBD>Z<EFBFBD><EFBFBD>}ы<><D18B>|~2<><32>><3E><>р<EFBFBD><D180>O*<2A> p

1
.workdir/Agent2/secrets/agent.token Normal file
View File

@@ -0,0 +1 @@
TH7Z2MJKMR975N6HFBKQP9WQFMWWN5

2
.workdir/Agent3/.gitignore vendored
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@@ -1,2 +0,0 @@
*
!.gitignore

1
.workdir/Agent3/secrets/agent.key Normal file
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@@ -0,0 +1 @@
tLkn<EFBFBD>Z<EFBFBD><EFBFBD>}ы<><D18B>|~2<><32>><3E><>р<EFBFBD><D180>O*<2A> p

1
.workdir/Agent3/secrets/agent.token Normal file
View File

@@ -0,0 +1 @@
TH7Z2MJKMR975N6HFBKQP9WQFMWWN5

1
.workdir/Controller/.gitignore vendored
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@@ -1 +0,0 @@


1
.workdir/Controller/secrets/agent.auth
View File

@@ -1 +0,0 @@
满<EFBFBD>H<EFBFBD>c<EFBFBD>og<EFBFBD>

BIN
.workdir/Controller/secrets/agent.pfx
View File

Binary file not shown.

1
.workdir/Controller/secrets/web.auth
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@@ -1 +0,0 @@
<07>U<EFBFBD>/<2F><04><><EFBFBD>q

BIN
.workdir/Controller/secrets/web.pfx
View File

Binary file not shown.

1
.workdir/Server/secrets/agent.key Normal file
View File

@@ -0,0 +1 @@
tLkn<EFBFBD>Z<EFBFBD><EFBFBD>}ы<><D18B>|~2<><32>><3E><>р<EFBFBD><D180>O*<2A> p

1
.workdir/Server/secrets/agent.token Normal file
View File

@@ -0,0 +1 @@
TH7Z2MJKMR975N6HFBKQP9WQFMWWN5

1
.workdir/Server/secrets/secret.key Normal file
View File

@@ -0,0 +1 @@
+<2B><><EFBFBD><EFBFBD><<3C>f:<3A>bJ"e<18>׸ބ<D7B8><1F><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>

1
.workdir/Web/.gitignore vendored
View File

@@ -1 +0,0 @@
/keys

2
AddMigration.bat
View File

@@ -5,4 +5,4 @@ if [%1]==[] (
exit
)
dotnet ef migrations add %~1 --project Controller/Phantom.Controller.Database.Postgres --msbuildprojectextensionspath .artifacts/obj/Phantom.Controller.Database.Postgres
dotnet ef migrations add %~1 --project Server/Phantom.Server.Database.Postgres

2
AddMigration.sh
View File

@@ -3,4 +3,4 @@ if [ -z "$1" ]; then
exit 1
fi
dotnet ef migrations add "$1" --project Controller/Phantom.Controller.Database.Postgres --msbuildprojectextensionspath .artifacts/obj/Phantom.Controller.Database.Postgres
dotnet ef migrations add "$1" --project Server/Phantom.Server.Database.Postgres

289
Agent/Phantom.Agent.Minecraft.Tests/Java/JavaPropertiesStreamTests.cs
View File

@@ -1,289 +0,0 @@
using System.Collections.Immutable;
using NUnit.Framework;
using Phantom.Agent.Minecraft.Java;
using Phantom.Utils.Collections;
namespace Phantom.Agent.Minecraft.Tests.Java;
[TestFixture]
public sealed class JavaPropertiesStreamTests {
public sealed class Reader {
private static async Task<ImmutableArray<KeyValuePair<string, string>>> Parse(string contents) {
using var stream = new MemoryStream(JavaPropertiesStream.Encoding.GetBytes(contents));
using var properties = new JavaPropertiesStream.Reader(stream);
return await properties.ReadProperties(CancellationToken.None).ToImmutableArrayAsync();
}
private static ImmutableArray<KeyValuePair<string, string>> KeyValue(string key, string value) {
return [new KeyValuePair<string, string>(key, value)];
}
[TestCase("")]
[TestCase("\n")]
public async Task EmptyLinesAreIgnored(string contents) {
Assert.That(await Parse(contents), Is.EquivalentTo(ImmutableArray<KeyValuePair<string, string>>.Empty));
}
[TestCase("# Comment")]
[TestCase("! Comment")]
[TestCase("# Comment\n! Comment")]
public async Task CommentsAreIgnored(string contents) {
Assert.That(await Parse(contents), Is.EquivalentTo(ImmutableArray<KeyValuePair<string, string>>.Empty));
}
[TestCase("key=value")]
[TestCase("key= value")]
[TestCase("key =value")]
[TestCase("key = value")]
[TestCase("key:value")]
[TestCase("key: value")]
[TestCase("key :value")]
[TestCase("key : value")]
[TestCase("key value")]
[TestCase("key\tvalue")]
[TestCase("key\fvalue")]
[TestCase("key \t\fvalue")]
public async Task SimpleKeyValue(string contents) {
Assert.That(await Parse(contents), Is.EquivalentTo(KeyValue("key", "value")));
}
[TestCase("key")]
[TestCase(" key")]
[TestCase(" key ")]
[TestCase("key=")]
[TestCase("key:")]
public async Task KeyWithoutValue(string contents) {
Assert.That(await Parse(contents), Is.EquivalentTo(KeyValue("key", "")));
}
[TestCase(@"\#key=value", "#key")]
[TestCase(@"\!key=value", "!key")]
public async Task KeyBeginsWithEscapedComment(string contents, string expectedKey) {
Assert.That(await Parse(contents), Is.EquivalentTo(KeyValue(expectedKey, "value")));
}
[TestCase(@"\=key=value", "=key")]
[TestCase(@"\:key=value", ":key")]
[TestCase(@"\ key=value", " key")]
[TestCase("\\\tkey=value", "\tkey")]
[TestCase("\\\fkey=value", "\fkey")]
public async Task KeyBeginsWithEscapedDelimiter(string contents, string expectedKey) {
Assert.That(await Parse(contents), Is.EquivalentTo(KeyValue(expectedKey, "value")));
}
[TestCase(@"start\=end=value", "start=end")]
[TestCase(@"start\:end:value", "start:end")]
[TestCase(@"start\ end value", "start end")]
[TestCase(@"start\ \:\=end = value", "start :=end")]
[TestCase("start\\ \\\t\\\fend = value", "start \t\fend")]
public async Task KeyContainsEscapedDelimiter(string contents, string expectedKey) {
Assert.That(await Parse(contents), Is.EquivalentTo(KeyValue(expectedKey, "value")));
}
[TestCase(@"key = \ value", " value")]
[TestCase("key = \\\tvalue", "\tvalue")]
[TestCase("key = \\\fvalue", "\fvalue")]
[TestCase("key=\\ \\\t\\\fvalue", " \t\fvalue")]
public async Task ValueBeginsWithEscapedWhitespace(string contents, string expectedValue) {
Assert.That(await Parse(contents), Is.EquivalentTo(KeyValue("key", expectedValue)));
}
[TestCase(@"key = value\", "value")]
public async Task ValueEndsWithTrailingBackslash(string contents, string expectedValue) {
Assert.That(await Parse(contents), Is.EquivalentTo(KeyValue("key", expectedValue)));
}
[TestCase("key=\\\0", "\0")]
[TestCase(@"key=\\", "\\")]
[TestCase(@"key=\t", "\t")]
[TestCase(@"key=\n", "\n")]
[TestCase(@"key=\r", "\r")]
[TestCase(@"key=\f", "\f")]
[TestCase(@"key=\u3053\u3093\u306b\u3061\u306f", "こんにちは")]
[TestCase(@"key=\u3053\u3093\u306B\u3061\u306F", "こんにちは")]
[TestCase("key=\\\0\\\\\\t\\n\\r\\f\\u3053", "\0\\\t\n\r\fこ")]
public async Task ValueContainsEscapedSpecialCharacters(string contents, string expectedValue) {
Assert.That(await Parse(contents), Is.EquivalentTo(KeyValue("key", expectedValue)));
}
[TestCase("key=first\\\nsecond", "first\nsecond")]
[TestCase("key=first\\\n second", "first\nsecond")]
[TestCase("key=first\\\n#second", "first\n#second")]
[TestCase("key=first\\\n!second", "first\n!second")]
public async Task ValueContainsNewLine(string contents, string expectedValue) {
Assert.That(await Parse(contents), Is.EquivalentTo(KeyValue("key", expectedValue)));
}
[TestCase("key=first\\\n \\ second", "first\n second")]
[TestCase("key=first\\\n \\\tsecond", "first\n\tsecond")]
[TestCase("key=first\\\n \\\fsecond", "first\n\fsecond")]
[TestCase("key=first\\\n \t\f\\ second", "first\n second")]
public async Task ValueContainsNewLineWithEscapedLeadingWhitespace(string contents, string expectedValue) {
Assert.That(await Parse(contents), Is.EquivalentTo(KeyValue("key", expectedValue)));
}
[Test]
public async Task ExampleFile() {
// From Wikipedia: https://en.wikipedia.org/wiki/.properties
const string ExampleFile = """
# You are reading a comment in ".properties" file.
! The exclamation mark ('!') can also be used for comments.
# Comments are ignored.
# Blank lines are also ignored.
# Lines with "properties" contain a key and a value separated by a delimiting character.
# There are 3 delimiting characters: equal ('='), colon (':') and whitespace (' ', '\t' and '\f').
website = https://en.wikipedia.org/
language : English
topic .properties files
# A word on a line will just create a key with no value.
empty
# Whitespace that appears between the key, the delimiter and the value is ignored.
# This means that the following are equivalent (other than for readability).
hello=hello
hello = hello
# To start the value with whitespace, escape it with a backslash ('\').
whitespaceStart = \ <-This space is not ignored.
# Keys with the same name will be overwritten by the key that is the furthest in a file.
# For example the final value for "duplicateKey" will be "second".
duplicateKey = first
duplicateKey = second
# To use the delimiter characters inside a key, you need to escape them with a ('\').
# However, there is no need to do this in the value.
delimiterCharacters\:\=\ = This is the value for the key "delimiterCharacters\:\=\ "
# Adding a backslash ('\') at the end of a line means that the value continues on the next line.
multiline = This line \
continues
# If you want your value to include a backslash ('\'), it should be escaped by another backslash ('\').
path = c:\\wiki\\templates
# This means that if the number of backslashes ('\') at the end of the line is even, the next line is not included in the value.
# In the following example, the value for "evenKey" is "This is on one line\".
evenKey = This is on one line\\
# This line is a normal comment and is not included in the value for "evenKey".
# If the number of backslash ('\') is odd, then the next line is included in the value.
# In the following example, the value for "oddKey" is "This is line one and\# This is line two".
oddKey = This is line one and\\\
# This is line two
# Whitespace characters at the beginning of a line is removed.
# Make sure to add the spaces you need before the backslash ('\') on the first line.
# If you add them at the beginning of the next line, they will be removed.
# In the following example, the value for "welcome" is "Welcome to Wikipedia!".
welcome = Welcome to \
Wikipedia!
# If you need to add newlines and carriage returns, they need to be escaped using ('\n') and ('\r') respectively.
# You can also optionally escape tabs with ('\t') for readability purposes.
valueWithEscapes = This is a newline\n and a carriage return\r and a tab\t.
# You can also use Unicode escape characters (maximum of four hexadecimal digits).
# In the following example, the value for "encodedHelloInJapanese" is "こんにちは".
encodedHelloInJapanese = \u3053\u3093\u306b\u3061\u306f
""";
ImmutableArray<KeyValuePair<string, string>> result = [
new ("website", "https://en.wikipedia.org/"),
new ("language", "English"),
new ("topic", ".properties files"),
new ("empty", ""),
new ("hello", "hello"),
new ("hello", "hello"),
new ("whitespaceStart", @" <-This space is not ignored."),
new ("duplicateKey", "first"),
new ("duplicateKey", "second"),
new ("delimiterCharacters:= ", @"This is the value for the key ""delimiterCharacters:= """),
new ("multiline", "This line \ncontinues"),
new ("path", @"c:\wiki\templates"),
new ("evenKey", @"This is on one line\"),
new ("oddKey", "This is line one and\\\n# This is line two"),
new ("welcome", "Welcome to \nWikipedia!"),
new ("valueWithEscapes", "This is a newline\n and a carriage return\r and a tab\t."),
new ("encodedHelloInJapanese", "こんにちは"),
];
Assert.That(await Parse(ExampleFile), Is.EquivalentTo(result));
}
}
public sealed class Writer {
private static async Task<string> Write(Func<JavaPropertiesStream.Writer, Task> write) {
using var stream = new MemoryStream();
await using (var writer = new JavaPropertiesStream.Writer(stream)) {
await write(writer);
}
return JavaPropertiesStream.Encoding.GetString(stream.ToArray());
}
[TestCase("one line comment", "# one line comment\n")]
[TestCase("こんにちは", "# \\u3053\\u3093\\u306B\\u3061\\u306F\n")]
[TestCase("first line\nsecond line\r\nthird line", "# first line\n# second line\n# third line\n")]
public async Task Comment(string comment, string contents) {
Assert.That(await Write(writer => writer.WriteComment(comment, CancellationToken.None)), Is.EqualTo(contents));
}
[TestCase("key", "value", "key=value\n")]
[TestCase("key", "", "key=\n")]
[TestCase("", "value", "=value\n")]
public async Task SimpleKeyValue(string key, string value, string contents) {
Assert.That(await Write(writer => writer.WriteProperty(key, value, CancellationToken.None)), Is.EqualTo(contents));
}
[TestCase("#key", "value", "\\#key=value\n")]
[TestCase("!key", "value", "\\!key=value\n")]
public async Task KeyBeginsWithEscapedComment(string key, string value, string contents) {
Assert.That(await Write(writer => writer.WriteProperty(key, value, CancellationToken.None)), Is.EqualTo(contents));
}
[TestCase("=key", "value", "\\=key=value\n")]
[TestCase(":key", "value", "\\:key=value\n")]
[TestCase(" key", "value", "\\ key=value\n")]
[TestCase("\tkey", "value", "\\tkey=value\n")]
[TestCase("\fkey", "value", "\\fkey=value\n")]
public async Task KeyBeginsWithEscapedDelimiter(string key, string value, string contents) {
Assert.That(await Write(writer => writer.WriteProperty(key, value, CancellationToken.None)), Is.EqualTo(contents));
}
[TestCase("start=end", "value", "start\\=end=value\n")]
[TestCase("start:end", "value", "start\\:end=value\n")]
[TestCase("start end", "value", "start\\ end=value\n")]
[TestCase("start :=end", "value", "start\\ \\:\\=end=value\n")]
[TestCase("start \t\fend", "value", "start\\ \\t\\fend=value\n")]
public async Task KeyContainsEscapedDelimiter(string key, string value, string contents) {
Assert.That(await Write(writer => writer.WriteProperty(key, value, CancellationToken.None)), Is.EqualTo(contents));
}
[TestCase("\\", "value", "\\\\=value\n")]
[TestCase("\t", "value", "\\t=value\n")]
[TestCase("\n", "value", "\\n=value\n")]
[TestCase("\r", "value", "\\r=value\n")]
[TestCase("\f", "value", "\\f=value\n")]
[TestCase("こんにちは", "value", "\\u3053\\u3093\\u306B\\u3061\\u306F=value\n")]
[TestCase("\\\t\n\r\fこ", "value", "\\\\\\t\\n\\r\\f\\u3053=value\n")]
[TestCase("first-line\nsecond-line\r\nthird-line", "value", "first-line\\nsecond-line\\r\\nthird-line=value\n")]
public async Task KeyContainsEscapedSpecialCharacters(string key, string value, string contents) {
Assert.That(await Write(writer => writer.WriteProperty(key, value, CancellationToken.None)), Is.EqualTo(contents));
}
[TestCase("key", "\\", "key=\\\\\n")]
[TestCase("key", "\t", "key=\\t\n")]
[TestCase("key", "\n", "key=\\n\n")]
[TestCase("key", "\r", "key=\\r\n")]
[TestCase("key", "\f", "key=\\f\n")]
[TestCase("key", "こんにちは", "key=\\u3053\\u3093\\u306B\\u3061\\u306F\n")]
[TestCase("key", "\\\t\n\r\fこ", "key=\\\\\\t\\n\\r\\f\\u3053\n")]
[TestCase("key", "first line\nsecond line\r\nthird line", "key=first line\\nsecond line\\r\\nthird line\n")]
public async Task ValueContainsEscapedSpecialCharacters(string key, string value, string contents) {
Assert.That(await Write(writer => writer.WriteProperty(key, value, CancellationToken.None)), Is.EqualTo(contents));
}
[Test]
public async Task ExampleFile() {
string contents = await Write(static async writer => {
await writer.WriteComment("Comment", CancellationToken.None);
await writer.WriteProperty("key", "value", CancellationToken.None);
await writer.WriteProperty("multiline", "first line\nsecond line", CancellationToken.None);
});
Assert.That(contents, Is.EqualTo("# Comment\nkey=value\nmultiline=first line\\nsecond line\n"));
}
}
}

23
Agent/Phantom.Agent.Minecraft.Tests/Phantom.Agent.Minecraft.Tests.csproj
View File

@@ -1,23 +0,0 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
<PropertyGroup>
<IsPackable>false</IsPackable>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.NET.Test.Sdk" />
<PackageReference Include="NUnit" />
<PackageReference Include="NUnit3TestAdapter" />
<PackageReference Include="NUnit.Analyzers" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\Phantom.Agent.Minecraft\Phantom.Agent.Minecraft.csproj" />
</ItemGroup>
</Project>

15
Agent/Phantom.Agent.Minecraft/Command/MinecraftCommand.cs
View File

@@ -1,15 +0,0 @@
namespace Phantom.Agent.Minecraft.Command;
public static class MinecraftCommand {
public const string SaveOn = "save-on";
public const string SaveOff = "save-off";
public const string Stop = "stop";
public static string Say(string message) {
return "say " + message;
}
public static string SaveAll(bool flush) {
return flush ? "save-all flush" : "save-all";
}
}

67
Agent/Phantom.Agent.Minecraft/Instance/InstanceProcess.cs
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@@ -1,67 +0,0 @@
using Phantom.Utils.Collections;
using Phantom.Utils.Processes;
using Phantom.Utils.Tasks;
namespace Phantom.Agent.Minecraft.Instance;
public sealed class InstanceProcess : IDisposable {
public InstanceProperties InstanceProperties { get; }
private readonly RingBuffer<string> outputBuffer = new (100);
private event EventHandler<string>? OutputEvent;
public event EventHandler? Ended;
public bool HasEnded { get; private set; }
private readonly Process process;
private readonly TaskCompletionSource processExited = AsyncTasks.CreateCompletionSource();
internal InstanceProcess(InstanceProperties instanceProperties, Process process) {
this.InstanceProperties = instanceProperties;
this.process = process;
this.process.Exited += ProcessOnExited;
this.process.OutputReceived += ProcessOutputReceived;
}
public async Task SendCommand(string command, CancellationToken cancellationToken) {
await process.StandardInput.WriteLineAsync(command.AsMemory(), cancellationToken);
}
public void AddOutputListener(EventHandler<string> listener, uint maxLinesToReadFromHistory = uint.MaxValue) {
OutputEvent += listener;
foreach (var line in outputBuffer.EnumerateLast(maxLinesToReadFromHistory)) {
listener(this, line);
}
}
public void RemoveOutputListener(EventHandler<string> listener) {
OutputEvent -= listener;
}
private void ProcessOutputReceived(object? sender, Process.Output output) {
outputBuffer.Add(output.Line);
OutputEvent?.Invoke(this, output.Line);
}
private void ProcessOnExited(object? sender, EventArgs e) {
OutputEvent = null;
HasEnded = true;
Ended?.Invoke(this, EventArgs.Empty);
processExited.SetResult();
}
public void Kill() {
process.Kill(true);
}
public async Task WaitForExit(TimeSpan timeout) {
await processExited.Task.WaitAsync(timeout);
}
public void Dispose() {
process.Dispose();
OutputEvent = null;
Ended = null;
}
}

9
Agent/Phantom.Agent.Minecraft/Instance/InstanceProperties.cs
View File

@@ -1,17 +1,12 @@
using System.Collections.Immutable;
using Phantom.Agent.Minecraft.Java;
using Phantom.Agent.Minecraft.Java;
using Phantom.Agent.Minecraft.Properties;
using Phantom.Common.Data.Instance;
namespace Phantom.Agent.Minecraft.Instance;
public sealed record InstanceProperties(
Guid InstanceGuid,
Guid JavaRuntimeGuid,
JvmProperties JvmProperties,
ImmutableArray<string> JvmArguments,
string InstanceFolder,
string ServerVersion,
ServerProperties ServerProperties,
InstanceLaunchProperties LaunchProperties
ServerProperties ServerProperties
);

67
Agent/Phantom.Agent.Minecraft/Instance/InstanceSession.cs Normal file
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@@ -0,0 +1,67 @@
using System.Diagnostics;
using Phantom.Utils.Collections;
namespace Phantom.Agent.Minecraft.Instance;
public sealed class InstanceSession : IDisposable {
private readonly RingBuffer<string> outputBuffer = new (10000);
private event EventHandler<string>? OutputEvent;
public event EventHandler? SessionEnded;
public bool HasEnded { get; private set; }
private readonly Process process;
internal InstanceSession(Process process) {
this.process = process;
this.process.EnableRaisingEvents = true;
this.process.Exited += ProcessOnExited;
this.process.OutputDataReceived += HandleOutputLine;
this.process.ErrorDataReceived += HandleOutputLine;
}
public async Task SendCommand(string command, CancellationToken cancellationToken) {
await process.StandardInput.WriteLineAsync(command.AsMemory(), cancellationToken);
}
public void AddOutputListener(EventHandler<string> listener, uint maxLinesToReadFromHistory = uint.MaxValue) {
OutputEvent += listener;
foreach (var line in outputBuffer.EnumerateLast(maxLinesToReadFromHistory)) {
listener(this, line);
}
}
public void RemoveOutputListener(EventHandler<string> listener) {
OutputEvent -= listener;
}
private void HandleOutputLine(object sender, DataReceivedEventArgs args) {
if (args.Data is {} line) {
outputBuffer.Add(line);
OutputEvent?.Invoke(this, line);
}
}
private void ProcessOnExited(object? sender, EventArgs e) {
OutputEvent = null;
HasEnded = true;
SessionEnded?.Invoke(this, EventArgs.Empty);
}
public void Kill() {
process.Kill(true);
}
public async Task WaitForExit(CancellationToken cancellationToken) {
if (!HasEnded) {
await process.WaitForExitAsync(cancellationToken);
}
}
public void Dispose() {
process.Dispose();
OutputEvent = null;
SessionEnded = null;
}
}

52
Agent/Phantom.Agent.Minecraft/Java/JavaPropertiesFileEditor.cs
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@@ -1,52 +0,0 @@
namespace Phantom.Agent.Minecraft.Java;
sealed class JavaPropertiesFileEditor {
private readonly Dictionary<string, string> overriddenProperties = new ();
public void Set(string key, string value) {
overriddenProperties[key] = value;
}
public async Task EditOrCreate(string filePath, string comment, CancellationToken cancellationToken) {
if (File.Exists(filePath)) {
string tmpFilePath = filePath + ".tmp";
await Edit(filePath, tmpFilePath, comment, cancellationToken);
File.Move(tmpFilePath, filePath, overwrite: true);
}
else {
await Create(filePath, comment, cancellationToken);
}
}
private async Task Create(string targetFilePath, string comment, CancellationToken cancellationToken) {
await using var targetWriter = new JavaPropertiesStream.Writer(targetFilePath);
await targetWriter.WriteComment(comment, cancellationToken);
foreach ((string key, string value) in overriddenProperties) {
await targetWriter.WriteProperty(key, value, cancellationToken);
}
}
private async Task Edit(string sourceFilePath, string targetFilePath, string comment, CancellationToken cancellationToken) {
using var sourceReader = new JavaPropertiesStream.Reader(sourceFilePath);
await using var targetWriter = new JavaPropertiesStream.Writer(targetFilePath);
await targetWriter.WriteComment(comment, cancellationToken);
var remainingOverriddenPropertyKeys = new HashSet<string>(overriddenProperties.Keys);
await foreach ((string key, string value) in sourceReader.ReadProperties(cancellationToken)) {
if (remainingOverriddenPropertyKeys.Remove(key)) {
await targetWriter.WriteProperty(key, overriddenProperties[key], cancellationToken);
}
else {
await targetWriter.WriteProperty(key, value, cancellationToken);
}
}
foreach (string key in remainingOverriddenPropertyKeys) {
await targetWriter.WriteProperty(key, overriddenProperties[key], cancellationToken);
}
}
}

284
Agent/Phantom.Agent.Minecraft/Java/JavaPropertiesStream.cs
View File

@@ -1,284 +0,0 @@
using System.Buffers;
using System.Globalization;
using System.Runtime.CompilerServices;
using System.Text;
using Phantom.Utils.Collections;
namespace Phantom.Agent.Minecraft.Java;
static class JavaPropertiesStream {
internal static readonly Encoding Encoding = Encoding.GetEncoding("ISO-8859-1");
private static FileStreamOptions CreateFileStreamOptions(FileMode mode, FileAccess access) {
return new FileStreamOptions {
Mode = mode,
Access = access,
Share = FileShare.Read,
Options = FileOptions.SequentialScan,
};
}
internal sealed class Reader : IDisposable {
private static readonly SearchValues<char> LineStartWhitespace = SearchValues.Create(' ', '\t', '\f');
private static readonly SearchValues<char> KeyValueDelimiter = SearchValues.Create('=', ':', ' ', '\t', '\f');
private static readonly SearchValues<char> Backslash = SearchValues.Create('\\');
private readonly StreamReader reader;
public Reader(Stream stream) {
this.reader = new StreamReader(stream, Encoding, leaveOpen: false);
}
public Reader(string path) {
this.reader = new StreamReader(path, Encoding, detectEncodingFromByteOrderMarks: false, CreateFileStreamOptions(FileMode.Open, FileAccess.Read));
}
public async IAsyncEnumerable<KeyValuePair<string, string>> ReadProperties([EnumeratorCancellation] CancellationToken cancellationToken) {
await foreach (string line in ReadLogicalLines(cancellationToken)) {
yield return ParseLine(line.AsSpan());
}
}
private async IAsyncEnumerable<string> ReadLogicalLines([EnumeratorCancellation] CancellationToken cancellationToken) {
StringBuilder nextLogicalLine = new StringBuilder();
while (await reader.ReadLineAsync(cancellationToken) is {} line) {
var span = line.AsSpan();
int startIndex = span.IndexOfAnyExcept(LineStartWhitespace);
if (startIndex == -1) {
continue;
}
if (nextLogicalLine.Length == 0 && (span[0] == '#' || span[0] == '!')) {
continue;
}
span = span[startIndex..];
if (IsEndEscaped(span)) {
nextLogicalLine.Append(span[..^1]);
nextLogicalLine.Append('\n');
}
else {
nextLogicalLine.Append(span);
yield return nextLogicalLine.ToString();
nextLogicalLine.Clear();
}
}
if (nextLogicalLine.Length > 0) {
yield return nextLogicalLine.ToString(startIndex: 0, nextLogicalLine.Length - 1); // Remove trailing new line.
}
}
private static KeyValuePair<string, string> ParseLine(ReadOnlySpan<char> line) {
int delimiterIndex = -1;
foreach (int candidateIndex in line.IndicesOf(KeyValueDelimiter)) {
if (candidateIndex == 0 || !IsEndEscaped(line[..candidateIndex])) {
delimiterIndex = candidateIndex;
break;
}
}
if (delimiterIndex == -1) {
return new KeyValuePair<string, string>(line.ToString(), string.Empty);
}
string key = ReadPropertyComponent(line[..delimiterIndex]);
line = line[(delimiterIndex + 1)..];
int valueStartIndex = line.IndexOfAnyExcept(KeyValueDelimiter);
string value = valueStartIndex == -1 ? string.Empty : ReadPropertyComponent(line[valueStartIndex..]);
return new KeyValuePair<string, string>(key, value);
}
private static string ReadPropertyComponent(ReadOnlySpan<char> component) {
StringBuilder builder = new StringBuilder();
int nextStartIndex = 0;
foreach (int backslashIndex in component.IndicesOf(Backslash)) {
if (backslashIndex == component.Length - 1) {
break;
}
if (backslashIndex < nextStartIndex) {
continue;
}
builder.Append(component[nextStartIndex..backslashIndex]);
int escapedIndex = backslashIndex + 1;
int escapedLength = 1;
char c = component[escapedIndex];
switch (c) {
case 't':
builder.Append('\t');
break;
case 'n':
builder.Append('\n');
break;
case 'r':
builder.Append('\r');
break;
case 'f':
builder.Append('\f');
break;
case 'u':
escapedLength += 4;
int hexRangeStart = escapedIndex + 1;
int hexRangeEnd = hexRangeStart + 4;
if (hexRangeEnd - 1 < component.Length) {
var hexString = component[hexRangeStart..hexRangeEnd];
int hexValue = int.Parse(hexString, NumberStyles.HexNumber);
builder.Append((char) hexValue);
}
else {
throw new FormatException("Malformed \\uxxxx encoding.");
}
break;
default:
builder.Append(c);
break;
}
nextStartIndex = escapedIndex + escapedLength;
}
builder.Append(component[nextStartIndex..]);
return builder.ToString();
}
private static bool IsEndEscaped(ReadOnlySpan<char> span) {
if (span.EndsWith('\\')) {
int trailingBackslashCount = span.Length - span.TrimEnd('\\').Length;
return trailingBackslashCount % 2 == 1;
}
else {
return false;
}
}
public void Dispose() {
reader.Dispose();
}
}
internal sealed class Writer : IAsyncDisposable {
private const string CommentStart = "# ";
private readonly StreamWriter writer;
private readonly Memory<char> oneCharBuffer = new char[1];
public Writer(Stream stream) {
this.writer = new StreamWriter(stream, Encoding, leaveOpen: false);
}
public Writer(string path) {
this.writer = new StreamWriter(path, Encoding, CreateFileStreamOptions(FileMode.Create, FileAccess.Write));
}
public async Task WriteComment(string comment, CancellationToken cancellationToken) {
await Write(CommentStart, cancellationToken);
for (int index = 0; index < comment.Length; index++) {
char c = comment[index];
switch (c) {
case var _ when c > 31 && c < 127:
await Write(c, cancellationToken);
break;
case '\n':
case '\r':
await Write(c: '\n', cancellationToken);
await Write(CommentStart, cancellationToken);
if (index < comment.Length - 1 && comment[index + 1] == '\n') {
index++;
}
break;
default:
await Write("\\u", cancellationToken);
await Write(((int) c).ToString("X4"), cancellationToken);
break;
}
}
await Write(c: '\n', cancellationToken);
}
public async Task WriteProperty(string key, string value, CancellationToken cancellationToken) {
await WritePropertyComponent(key, escapeSpaces: true, cancellationToken);
await Write(c: '=', cancellationToken);
await WritePropertyComponent(value, escapeSpaces: false, cancellationToken);
await Write(c: '\n', cancellationToken);
}
private async Task WritePropertyComponent(string component, bool escapeSpaces, CancellationToken cancellationToken) {
for (int index = 0; index < component.Length; index++) {
char c = component[index];
switch (c) {
case '\\':
case '#':
case '!':
case '=':
case ':':
case ' ' when escapeSpaces || index == 0:
await Write(c: '\\', cancellationToken);
await Write(c, cancellationToken);
break;
case var _ when c > 31 && c < 127:
await Write(c, cancellationToken);
break;
case '\t':
await Write("\\t", cancellationToken);
break;
case '\n':
await Write("\\n", cancellationToken);
break;
case '\r':
await Write("\\r", cancellationToken);
break;
case '\f':
await Write("\\f", cancellationToken);
break;
default:
await Write("\\u", cancellationToken);
await Write(((int) c).ToString("X4"), cancellationToken);
break;
}
}
}
private Task Write(char c, CancellationToken cancellationToken) {
oneCharBuffer.Span[0] = c;
return writer.WriteAsync(oneCharBuffer, cancellationToken);
}
private Task Write(string value, CancellationToken cancellationToken) {
return writer.WriteAsync(value.AsMemory(), cancellationToken);
}
public async ValueTask DisposeAsync() {
await writer.DisposeAsync();
}
}
}

141
Agent/Phantom.Agent.Minecraft/Java/JavaRuntimeDiscovery.cs
View File

@@ -1,124 +1,113 @@
using System.Diagnostics;
using System.Runtime.CompilerServices;
using Phantom.Common.Data.Java;
using Phantom.Utils.Collections;
using Phantom.Common.Logging;
using Phantom.Utils.IO;
using Phantom.Utils.Logging;
using Serilog;
namespace Phantom.Agent.Minecraft.Java;
public sealed class JavaRuntimeDiscovery {
private static readonly ILogger Logger = PhantomLogger.Create(nameof(JavaRuntimeDiscovery));
private static readonly ILogger Logger = PhantomLogger.Create(typeof(JavaRuntimeDiscovery));
public static string? GetSystemSearchPath() {
const string LinuxJavaPath = "/usr/lib/jvm";
if (OperatingSystem.IsLinux() && Directory.Exists(LinuxJavaPath)) {
return LinuxJavaPath;
}
return null;
}
public static async Task<JavaRuntimeRepository> Scan(string folderPath, CancellationToken cancellationToken) {
var runtimes = await new JavaRuntimeDiscovery().ScanInternal(folderPath, cancellationToken).ToImmutableArrayAsync(cancellationToken);
return new JavaRuntimeRepository(runtimes);
public static IAsyncEnumerable<JavaRuntimeExecutable> Scan(string folderPath) {
return new JavaRuntimeDiscovery().ScanInternal(folderPath);
}
private readonly Dictionary<string, int> duplicateDisplayNames = new ();
private async IAsyncEnumerable<JavaRuntimeExecutable> ScanInternal(string folderPath, [EnumeratorCancellation] CancellationToken cancellationToken) {
private async IAsyncEnumerable<JavaRuntimeExecutable> ScanInternal(string folderPath) {
Logger.Information("Starting Java runtime scan in: {FolderPath}", folderPath);
string javaExecutableName = OperatingSystem.IsWindows() ? "java.exe" : "java";
foreach (var binFolderPath in Directory.EnumerateDirectories(Paths.ExpandTilde(folderPath), "bin", new EnumerationOptions {
MatchType = MatchType.Simple,
RecurseSubdirectories = true,
ReturnSpecialDirectories = false,
IgnoreInaccessible = true,
AttributesToSkip = FileAttributes.Hidden | FileAttributes.ReparsePoint | FileAttributes.System,
AttributesToSkip = FileAttributes.Hidden | FileAttributes.ReparsePoint | FileAttributes.System
}).Order()) {
cancellationToken.ThrowIfCancellationRequested();
var javaExecutablePath = Paths.NormalizeSlashes(Path.Combine(binFolderPath, javaExecutableName));
FileAttributes javaExecutableAttributes;
try {
javaExecutableAttributes = File.GetAttributes(javaExecutablePath);
} catch (Exception) {
continue;
if (File.Exists(javaExecutablePath)) {
Logger.Information("Found candidate Java executable: {JavaExecutablePath}", javaExecutablePath);
JavaRuntime? foundRuntime;
try {
foundRuntime = await TryReadJavaRuntimeInformationFromProcess(javaExecutablePath);
} catch (OperationCanceledException) {
Logger.Error("Java process did not exit in time.");
continue;
} catch (Exception e) {
Logger.Error(e, "Caught exception while reading Java version information.");
continue;
}
if (foundRuntime == null) {
Logger.Error("Java executable did not output version information.");
continue;
}
Logger.Information("Found Java {DisplayName} at: {Path}", foundRuntime.DisplayName, javaExecutablePath);
yield return new JavaRuntimeExecutable(javaExecutablePath, foundRuntime);
}
if (javaExecutableAttributes.HasFlag(FileAttributes.ReparsePoint)) {
continue;
}
Logger.Information("Found candidate Java executable: {JavaExecutablePath}", javaExecutablePath);
JavaRuntime? foundRuntime;
try {
foundRuntime = await TryReadJavaRuntimeInformationFromProcess(javaExecutablePath, cancellationToken);
} catch (OperationCanceledException) {
Logger.Error("Java process did not exit in time.");
continue;
} catch (Exception e) {
Logger.Error(e, "Caught exception while reading Java version information.");
continue;
}
if (foundRuntime == null) {
Logger.Error("Java executable did not output version information.");
continue;
}
Logger.Information("Found Java {DisplayName} at: {Path}", foundRuntime.DisplayName, javaExecutablePath);
yield return new JavaRuntimeExecutable(javaExecutablePath, foundRuntime);
}
}
private async Task<JavaRuntime?> TryReadJavaRuntimeInformationFromProcess(string javaExecutablePath, CancellationToken cancellationToken) {
private async Task<JavaRuntime?> TryReadJavaRuntimeInformationFromProcess(string javaExecutablePath) {
var startInfo = new ProcessStartInfo {
FileName = javaExecutablePath,
WorkingDirectory = Path.GetDirectoryName(javaExecutablePath),
Arguments = "-XshowSettings:properties -version",
RedirectStandardInput = false,
RedirectStandardOutput = false,
RedirectStandardOutput = true,
RedirectStandardError = true,
UseShellExecute = false,
CreateNoWindow = false
};
using var timeoutCancellationTokenSource = new CancellationTokenSource(TimeSpan.FromSeconds(5));
using var combinedCancellationTokenSource = CancellationTokenSource.CreateLinkedTokenSource(timeoutCancellationTokenSource.Token, cancellationToken);
using var process = new Process();
process.StartInfo = startInfo;
process.Start();
JavaRuntimeBuilder runtimeBuilder = new ();
while (await process.StandardError.ReadLineAsync(combinedCancellationTokenSource.Token) is {} line) {
ExtractJavaVersionPropertiesFromLine(line, runtimeBuilder);
JavaRuntime? runtime = runtimeBuilder.TryBuild(duplicateDisplayNames);
if (runtime != null) {
return runtime;
var process = new Process { StartInfo = startInfo };
var cancellationTokenSource = new CancellationTokenSource(TimeSpan.FromSeconds(5));
try {
process.Start();
JavaRuntimeBuilder runtimeBuilder = new ();
while (await process.StandardError.ReadLineAsync(cancellationTokenSource.Token) is {} line) {
ExtractJavaVersionPropertiesFromLine(line, runtimeBuilder);
JavaRuntime? runtime = runtimeBuilder.TryBuild(duplicateDisplayNames);
if (runtime != null) {
return runtime;
}
}
await process.WaitForExitAsync(cancellationTokenSource.Token);
return null;
} finally {
process.Dispose();
cancellationTokenSource.Dispose();
}
await process.WaitForExitAsync(combinedCancellationTokenSource.Token);
return null;
}
private static void ExtractJavaVersionPropertiesFromLine(ReadOnlySpan<char> line, JavaRuntimeBuilder runtimeBuilder) {
line = line.TrimStart();
int separatorIndex = line.IndexOf('=');
if (separatorIndex == -1) {
return;
}
var propertyName = line[..separatorIndex].TrimEnd();
if (propertyName.Equals("java.specification.version", StringComparison.Ordinal)) {
runtimeBuilder.MainVersion = ExtractValue(line, separatorIndex);
@@ -130,16 +119,16 @@ public sealed class JavaRuntimeDiscovery {
runtimeBuilder.Vendor = ExtractValue(line, separatorIndex);
}
}
private static string ExtractValue(ReadOnlySpan<char> line, int separatorIndex) {
return line[(separatorIndex + 1)..].Trim().ToString();
}
private sealed class JavaRuntimeBuilder {
public string? MainVersion { get; set; } = null;
public string? FullVersion { get; set; } = null;
public string? Vendor { get; set; } = null;
public JavaRuntime? TryBuild(Dictionary<string, int> duplicateDisplayNames) {
if (MainVersion == null || FullVersion == null || Vendor == null) {
return null;

12
Agent/Phantom.Agent.Minecraft/Java/JavaRuntimeExecutable.cs
View File

@@ -1,5 +1,13 @@
using Phantom.Common.Data.Java;
namespace Phantom.Agent.Minecraft.Java;
namespace Phantom.Agent.Minecraft.Java;
sealed record JavaRuntimeExecutable(string ExecutablePath, JavaRuntime Runtime);
public sealed class JavaRuntimeExecutable {
internal string ExecutablePath { get; }
internal JavaRuntime Runtime { get; }
internal JavaRuntimeExecutable(string executablePath, JavaRuntime runtime) {
this.ExecutablePath = executablePath;
this.Runtime = runtime;
}
}

54
Agent/Phantom.Agent.Minecraft/Java/JavaRuntimeRepository.cs
View File

@@ -6,29 +6,43 @@ using Phantom.Utils.Cryptography;
namespace Phantom.Agent.Minecraft.Java;
public sealed class JavaRuntimeRepository {
private readonly ImmutableDictionary<Guid, JavaRuntimeExecutable> runtimesByGuid;
internal JavaRuntimeRepository(ImmutableArray<JavaRuntimeExecutable> runtimes) {
var runtimesByGuidBuilder = ImmutableDictionary.CreateBuilder<Guid, JavaRuntimeExecutable>();
foreach (JavaRuntimeExecutable runtime in runtimes) {
runtimesByGuidBuilder.Add(GenerateStableGuid(runtime.ExecutablePath), runtime);
}
runtimesByGuid = runtimesByGuidBuilder.ToImmutable();
}
private readonly Dictionary<string, Guid> guidsByPath = new ();
private readonly Dictionary<Guid, JavaRuntimeExecutable> runtimesByGuid = new ();
private readonly ReaderWriterLockSlim rwLock = new (LockRecursionPolicy.NoRecursion);
public ImmutableArray<TaggedJavaRuntime> All {
[SuppressMessage("ReSharper", "UseCollectionExpression")]
get => runtimesByGuid.Select(static kvp => new TaggedJavaRuntime(kvp.Key, kvp.Value.Runtime))
.OrderBy(static taggedRuntime => taggedRuntime.Runtime)
.ToImmutableArray();
get {
rwLock.EnterReadLock();
try {
return runtimesByGuid.Select(static kvp => new TaggedJavaRuntime(kvp.Key, kvp.Value.Runtime)).OrderBy(static taggedRuntime => taggedRuntime.Runtime).ToImmutableArray();
} finally {
rwLock.ExitReadLock();
}
}
}
internal bool TryGetByGuid(Guid guid, [MaybeNullWhen(false)] out JavaRuntimeExecutable runtime) {
return runtimesByGuid.TryGetValue(guid, out runtime);
public void Include(JavaRuntimeExecutable runtime) {
rwLock.EnterWriteLock();
try {
if (!guidsByPath.TryGetValue(runtime.ExecutablePath, out var guid)) {
guidsByPath[runtime.ExecutablePath] = guid = GenerateStableGuid(runtime.ExecutablePath);
}
runtimesByGuid[guid] = runtime;
} finally {
rwLock.ExitWriteLock();
}
}
public bool TryGetByGuid(Guid guid, [MaybeNullWhen(false)] out JavaRuntimeExecutable runtime) {
rwLock.EnterReadLock();
try {
return runtimesByGuid.TryGetValue(guid, out runtime);
} finally {
rwLock.ExitReadLock();
}
}
private static Guid GenerateStableGuid(string executablePath) {
Random rand = new Random(StableHashCode.ForString(executablePath));
Span<byte> bytes = stackalloc byte[16];

26
Agent/Phantom.Agent.Minecraft/Java/JvmArgumentBuilder.cs
View File

@@ -2,24 +2,24 @@
namespace Phantom.Agent.Minecraft.Java;
sealed class JvmArgumentBuilder(JvmProperties basicProperties) {
private readonly List<string> customArguments = [];
public void Add(string argument) {
customArguments.Add(argument);
sealed class JvmArgumentBuilder {
private readonly JvmProperties basicProperties;
private readonly List<string> customProperties = new ();
public JvmArgumentBuilder(JvmProperties basicProperties) {
this.basicProperties = basicProperties;
}
public void AddProperty(string key, string value) {
customArguments.Add("-D" + key + "=\"" + value + "\""); // TODO test quoting?
customProperties.Add("-D" + key + "=\"" + value + "\""); // TODO test quoting?
}
public void Build(Collection<string> target) {
foreach (var property in customArguments) {
target.Add(property);
}
// In case of duplicate JVM arguments, typically the last one wins.
target.Add("-Xms" + basicProperties.InitialHeapMegabytes + "M");
target.Add("-Xmx" + basicProperties.MaximumHeapMegabytes + "M");
foreach (var property in customProperties) {
target.Add(property);
}
}
}

143
Agent/Phantom.Agent.Minecraft/Launcher/BaseLauncher.cs
View File

@@ -1,116 +1,87 @@
using System.Text;
using System.Diagnostics;
using System.Text;
using Kajabity.Tools.Java;
using Phantom.Agent.Minecraft.Instance;
using Phantom.Agent.Minecraft.Java;
using Phantom.Agent.Minecraft.Server;
using Phantom.Utils.Processes;
using Serilog;
namespace Phantom.Agent.Minecraft.Launcher;
public abstract class BaseLauncher : IServerLauncher {
public abstract class BaseLauncher {
private readonly InstanceProperties instanceProperties;
protected string MinecraftVersion => instanceProperties.ServerVersion;
private protected BaseLauncher(InstanceProperties instanceProperties) {
this.instanceProperties = instanceProperties;
}
public async Task<LaunchResult> Launch(ILogger logger, LaunchServices services, EventHandler<DownloadProgressEventArgs> downloadProgressEventHandler, CancellationToken cancellationToken) {
public async Task<LaunchResult> Launch(LaunchServices services, EventHandler<DownloadProgressEventArgs> downloadProgressEventHandler, CancellationToken cancellationToken) {
if (!services.JavaRuntimeRepository.TryGetByGuid(instanceProperties.JavaRuntimeGuid, out var javaRuntimeExecutable)) {
return new LaunchResult.InvalidJavaRuntime();
}
var vanillaServerJarPath = await services.ServerExecutables.DownloadAndGetPath(instanceProperties.LaunchProperties.ServerDownloadInfo, MinecraftVersion, downloadProgressEventHandler, cancellationToken);
var vanillaServerJarPath = await services.ServerExecutables.DownloadAndGetPath(instanceProperties.ServerVersion, downloadProgressEventHandler, cancellationToken);
if (vanillaServerJarPath == null) {
return new LaunchResult.CouldNotDownloadMinecraftServer();
}
ServerJarInfo? serverJar;
try {
serverJar = await PrepareServerJar(logger, vanillaServerJarPath, cancellationToken);
} catch (OperationCanceledException) {
throw;
} catch (Exception e) {
logger.Error(e, "Caught exception while preparing the server jar.");
return new LaunchResult.CouldNotPrepareMinecraftServerLauncher();
}
if (!File.Exists(serverJar.FilePath)) {
logger.Error("Missing prepared server or launcher jar: {FilePath}", serverJar.FilePath);
return new LaunchResult.CouldNotPrepareMinecraftServerLauncher();
}
try {
await AcceptEula(instanceProperties);
await UpdateServerProperties(instanceProperties, cancellationToken);
} catch (Exception e) {
logger.Error(e, "Caught exception while configuring the server.");
return new LaunchResult.CouldNotConfigureMinecraftServer();
}
var processConfigurator = new ProcessConfigurator {
var startInfo = new ProcessStartInfo {
FileName = javaRuntimeExecutable.ExecutablePath,
WorkingDirectory = instanceProperties.InstanceFolder,
RedirectInput = true,
RedirectStandardInput = true,
RedirectStandardOutput = true,
RedirectStandardError = true,
UseShellExecute = false,
CreateNoWindow = false
};
var processArguments = processConfigurator.ArgumentList;
PrepareJvmArguments(serverJar).Build(processArguments);
var jvmArguments = new JvmArgumentBuilder(instanceProperties.JvmProperties);
CustomizeJvmArguments(jvmArguments);
var serverJarPath = await PrepareServerJar(vanillaServerJarPath, instanceProperties.InstanceFolder, cancellationToken);
var processArguments = startInfo.ArgumentList;
jvmArguments.Build(processArguments);
processArguments.Add("-jar");
processArguments.Add(serverJar.FilePath);
processArguments.Add(serverJarPath);
processArguments.Add("nogui");
var process = processConfigurator.CreateProcess();
var instanceProcess = new InstanceProcess(instanceProperties, process);
try {
process.Start();
} catch (Exception launchException) {
logger.Error(launchException, "Caught exception launching the server process.");
try {
process.Kill();
} catch (Exception killException) {
logger.Error(killException, "Caught exception trying to kill the server process after a failed launch.");
}
return new LaunchResult.CouldNotStartMinecraftServer();
}
return new LaunchResult.Success(instanceProcess);
var process = new Process { StartInfo = startInfo };
var session = new InstanceSession(process);
await AcceptEula(instanceProperties);
await UpdateServerProperties(instanceProperties);
process.Start();
process.BeginOutputReadLine();
process.BeginErrorReadLine();
return new LaunchResult.Success(session);
}
private JvmArgumentBuilder PrepareJvmArguments(ServerJarInfo serverJar) {
var builder = new JvmArgumentBuilder(instanceProperties.JvmProperties);
foreach (string argument in instanceProperties.JvmArguments) {
builder.Add(argument);
}
foreach (var argument in serverJar.ExtraArgs) {
builder.Add(argument);
}
CustomizeJvmArguments(builder);
return builder;
}
private protected virtual void CustomizeJvmArguments(JvmArgumentBuilder arguments) {}
private protected virtual Task<ServerJarInfo> PrepareServerJar(ILogger logger, string serverJarPath, CancellationToken cancellationToken) {
return Task.FromResult(new ServerJarInfo(serverJarPath));
private protected virtual Task<string> PrepareServerJar(string serverJarPath, string instanceFolderPath, CancellationToken cancellationToken) {
return Task.FromResult(serverJarPath);
}
private static async Task AcceptEula(InstanceProperties instanceProperties) {
var eulaFilePath = Path.Combine(instanceProperties.InstanceFolder, "eula.txt");
await File.WriteAllLinesAsync(eulaFilePath, ["# EULA", "eula=true"], Encoding.UTF8);
await File.WriteAllLinesAsync(eulaFilePath, new [] { "# EULA", "eula=true" }, Encoding.UTF8);
}
private static async Task UpdateServerProperties(InstanceProperties instanceProperties, CancellationToken cancellationToken) {
var serverPropertiesEditor = new JavaPropertiesFileEditor();
instanceProperties.ServerProperties.SetTo(serverPropertiesEditor);
await serverPropertiesEditor.EditOrCreate(Path.Combine(instanceProperties.InstanceFolder, "server.properties"), comment: "server.properties", cancellationToken);
private static async Task UpdateServerProperties(InstanceProperties instanceProperties) {
var serverPropertiesFilePath = Path.Combine(instanceProperties.InstanceFolder, "server.properties");
var serverPropertiesData = new JavaProperties();
try {
await using var readStream = new FileStream(serverPropertiesFilePath, FileMode.Open, FileAccess.Read, FileShare.Read);
serverPropertiesData.Load(readStream);
} catch (FileNotFoundException) {
// ignore
}
instanceProperties.ServerProperties.SetTo(serverPropertiesData);
await using var writeStream = new FileStream(serverPropertiesFilePath, FileMode.OpenOrCreate, FileAccess.Write, FileShare.None);
serverPropertiesData.Store(writeStream, true);
}
}

8
Agent/Phantom.Agent.Minecraft/Launcher/IServerLauncher.cs
View File

@@ -1,8 +0,0 @@
using Phantom.Agent.Minecraft.Server;
using Serilog;
namespace Phantom.Agent.Minecraft.Launcher;
public interface IServerLauncher {
Task<LaunchResult> Launch(ILogger logger, LaunchServices services, EventHandler<DownloadProgressEventArgs> downloadProgressEventHandler, CancellationToken cancellationToken);
}

14
Agent/Phantom.Agent.Minecraft/Launcher/LaunchResult.cs
View File

@@ -4,16 +4,10 @@ namespace Phantom.Agent.Minecraft.Launcher;
public abstract record LaunchResult {
private LaunchResult() {}
public sealed record Success(InstanceProcess Process) : LaunchResult;
public sealed record Success(InstanceSession Session) : LaunchResult;
public sealed record InvalidJavaRuntime : LaunchResult;
public sealed record CouldNotDownloadMinecraftServer : LaunchResult;
public sealed record CouldNotPrepareMinecraftServerLauncher : LaunchResult;
public sealed record CouldNotConfigureMinecraftServer : LaunchResult;
public sealed record CouldNotStartMinecraftServer : LaunchResult;
}

2
Agent/Phantom.Agent.Minecraft/Launcher/LaunchServices.cs
View File

@@ -1,6 +1,6 @@
using Phantom.Agent.Minecraft.Java;
using Phantom.Agent.Minecraft.Server;
namespace Phantom.Agent.Minecraft.Launcher;
namespace Phantom.Agent.Minecraft.Launcher;
public sealed record LaunchServices(MinecraftServerExecutables ServerExecutables, JavaRuntimeRepository JavaRuntimeRepository);

7
Agent/Phantom.Agent.Minecraft/Launcher/ServerJarInfo.cs
View File

@@ -1,7 +0,0 @@
using System.Collections.Immutable;
namespace Phantom.Agent.Minecraft.Launcher;
sealed record ServerJarInfo(string FilePath, ImmutableArray<string> ExtraArgs) {
public ServerJarInfo(string filePath) : this(filePath, ImmutableArray<string>.Empty) {}
}

54
Agent/Phantom.Agent.Minecraft/Launcher/Types/FabricLauncher.cs
View File

@@ -1,54 +0,0 @@
using Phantom.Agent.Minecraft.Instance;
using Phantom.Utils.IO;
using Serilog;
namespace Phantom.Agent.Minecraft.Launcher.Types;
public sealed class FabricLauncher : BaseLauncher {
public FabricLauncher(InstanceProperties instanceProperties) : base(instanceProperties) {}
private protected override async Task<ServerJarInfo> PrepareServerJar(ILogger logger, string serverJarPath, CancellationToken cancellationToken) {
var serverJarParentFolderPath = Directory.GetParent(serverJarPath);
if (serverJarParentFolderPath == null) {
throw new ArgumentException("Could not get parent folder from: " + serverJarPath, nameof(serverJarPath));
}
var launcherJarPath = Path.Combine(serverJarParentFolderPath.FullName, "fabric.jar");
if (!File.Exists(launcherJarPath)) {
await DownloadLauncher(logger, launcherJarPath, cancellationToken);
}
return new ServerJarInfo(launcherJarPath, ["-Dfabric.installer.server.gameJar=" + Paths.NormalizeSlashes(serverJarPath)]);
}
private async Task DownloadLauncher(ILogger logger, string targetFilePath, CancellationToken cancellationToken) {
// TODO customizable loader version, probably with a dedicated temporary folder
string installerUrl = $"https://meta.fabricmc.net/v2/versions/loader/{MinecraftVersion}/stable/stable/server/jar";
logger.Information("Downloading Fabric launcher from: {Url}", installerUrl);
using var http = new HttpClient();
var response = await http.GetAsync(installerUrl, HttpCompletionOption.ResponseHeadersRead, cancellationToken);
response.EnsureSuccessStatusCode();
try {
await using var fileStream = new FileStream(targetFilePath, FileMode.CreateNew, FileAccess.Write, FileShare.Read);
await using var responseStream = await response.Content.ReadAsStreamAsync(cancellationToken);
await responseStream.CopyToAsync(fileStream, cancellationToken);
} catch (Exception) {
TryDeleteLauncherAfterFailure(logger, targetFilePath);
throw;
}
}
private static void TryDeleteLauncherAfterFailure(ILogger logger, string filePath) {
if (File.Exists(filePath)) {
try {
File.Delete(filePath);
} catch (Exception e) {
logger.Warning(e, "Could not clean up partially downloaded Fabric launcher: {FilePath}", filePath);
}
}
}
}

14
Agent/Phantom.Agent.Minecraft/Launcher/Types/InvalidLauncher.cs
View File

@@ -1,14 +0,0 @@
using Phantom.Agent.Minecraft.Server;
using Serilog;
namespace Phantom.Agent.Minecraft.Launcher.Types;
public sealed class InvalidLauncher : IServerLauncher {
public static InvalidLauncher Instance { get; } = new ();
private InvalidLauncher() {}
public Task<LaunchResult> Launch(ILogger logger, LaunchServices services, EventHandler<DownloadProgressEventArgs> downloadProgressEventHandler, CancellationToken cancellationToken) {
return Task.FromResult<LaunchResult>(new LaunchResult.CouldNotPrepareMinecraftServerLauncher());
}
}

2
Agent/Phantom.Agent.Minecraft/Launcher/Types/VanillaLauncher.cs
View File

@@ -1,6 +1,6 @@
using Phantom.Agent.Minecraft.Instance;
namespace Phantom.Agent.Minecraft.Launcher.Types;
namespace Phantom.Agent.Minecraft.Launcher.Types;
public sealed class VanillaLauncher : BaseLauncher {
public VanillaLauncher(InstanceProperties instanceProperties) : base(instanceProperties) {}

9
Agent/Phantom.Agent.Minecraft/Phantom.Agent.Minecraft.csproj
View File

@@ -1,18 +1,21 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
<ItemGroup>
<InternalsVisibleTo Include="Phantom.Agent.Minecraft.Tests" />
<PackageReference Include="Kajabity.Tools.Java" Version="0.3.7879.40798" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\..\Common\Phantom.Common.Data\Phantom.Common.Data.csproj" />
<ProjectReference Include="..\..\Utils\Phantom.Utils\Phantom.Utils.csproj" />
<ProjectReference Include="..\..\Utils\Phantom.Utils.Logging\Phantom.Utils.Logging.csproj" />
<ProjectReference Include="..\..\Common\Phantom.Common.Logging\Phantom.Common.Logging.csproj" />
<ProjectReference Include="..\..\Utils\Phantom.Utils.Collections\Phantom.Utils.Collections.csproj" />
<ProjectReference Include="..\..\Utils\Phantom.Utils.Cryptography\Phantom.Utils.Cryptography.csproj" />
<ProjectReference Include="..\..\Utils\Phantom.Utils.IO\Phantom.Utils.IO.csproj" />
</ItemGroup>
</Project>

3
Agent/Phantom.Agent.Minecraft/Properties/MinecraftServerProperties.cs
View File

@@ -14,9 +14,8 @@ static class MinecraftServerProperties {
protected override ushort Read(string value) => ushort.Parse(value);
protected override string Write(ushort value) => value.ToString();
}
public static readonly MinecraftServerProperty<ushort> ServerPort = new UnsignedShort("server-port");
public static readonly MinecraftServerProperty<ushort> RconPort = new UnsignedShort("rcon.port");
public static readonly MinecraftServerProperty<bool> EnableRcon = new Boolean("enable-rcon");
public static readonly MinecraftServerProperty<bool> SyncChunkWrites = new Boolean("sync-chunk-writes");
}

12
Agent/Phantom.Agent.Minecraft/Properties/MinecraftServerProperty.cs
View File

@@ -1,18 +1,18 @@
using Phantom.Agent.Minecraft.Java;
using Kajabity.Tools.Java;
namespace Phantom.Agent.Minecraft.Properties;
namespace Phantom.Agent.Minecraft.Properties;
abstract class MinecraftServerProperty<T> {
private readonly string key;
protected MinecraftServerProperty(string key) {
this.key = key;
}
protected abstract T Read(string value);
protected abstract string Write(T value);
public void Set(JavaPropertiesFileEditor properties, T value) {
properties.Set(key, Write(value));
public void Set(JavaProperties properties, T value) {
properties.SetProperty(key, Write(value));
}
}

8
Agent/Phantom.Agent.Minecraft/Properties/ServerProperties.cs
View File

@@ -1,17 +1,15 @@
using Phantom.Agent.Minecraft.Java;
using Kajabity.Tools.Java;
namespace Phantom.Agent.Minecraft.Properties;
public sealed record ServerProperties(
ushort ServerPort,
ushort RconPort,
bool EnableRcon = true,
bool SyncChunkWrites = false
bool EnableRcon = true
) {
internal void SetTo(JavaPropertiesFileEditor properties) {
internal void SetTo(JavaProperties properties) {
MinecraftServerProperties.ServerPort.Set(properties, ServerPort);
MinecraftServerProperties.RconPort.Set(properties, RconPort);
MinecraftServerProperties.EnableRcon.Set(properties, EnableRcon);
MinecraftServerProperties.SyncChunkWrites.Set(properties, SyncChunkWrites);
}
}

2
Agent/Phantom.Agent.Minecraft/Server/DownloadProgressEventArgs.cs
View File

@@ -1,4 +1,4 @@
namespace Phantom.Agent.Minecraft.Server;
namespace Phantom.Agent.Minecraft.Server;
public sealed class DownloadProgressEventArgs : EventArgs {
public ulong DownloadedBytes { get; }

2
Agent/Phantom.Agent.Minecraft/Server/MinecraftServerExecutableDownloadListener.cs
View File

@@ -1,3 +1,3 @@
namespace Phantom.Agent.Minecraft.Server;
namespace Phantom.Agent.Minecraft.Server;
sealed record MinecraftServerExecutableDownloadListener(EventHandler<DownloadProgressEventArgs> DownloadProgressEventHandler, CancellationToken CancellationToken);

269
Agent/Phantom.Agent.Minecraft/Server/MinecraftServerExecutableDownloader.cs
View File

@@ -1,137 +1,151 @@
using System.Security.Cryptography;
using Phantom.Common.Data.Minecraft;
using System.Net.Http.Json;
using System.Security.Cryptography;
using System.Text.Json;
using Phantom.Common.Logging;
using Phantom.Utils.Cryptography;
using Phantom.Utils.IO;
using Phantom.Utils.Logging;
using Phantom.Utils.Runtime;
using Serilog;
namespace Phantom.Agent.Minecraft.Server;
sealed class MinecraftServerExecutableDownloader {
private static readonly ILogger Logger = PhantomLogger.Create<MinecraftServerExecutableDownloader>();
private const string VersionManifestUrl = "https://launchermeta.mojang.com/mc/game/version_manifest.json";
public Task<string?> Task { get; }
public event EventHandler<DownloadProgressEventArgs>? DownloadProgress;
public event EventHandler? Completed;
private readonly CancellationTokenSource cancellationTokenSource = new ();
private readonly List<CancellationTokenRegistration> listenerCancellationRegistrations = [];
private int listenerCount = 0;
public MinecraftServerExecutableDownloader(FileDownloadInfo fileDownloadInfo, string minecraftVersion, string filePath, MinecraftServerExecutableDownloadListener listener) {
private int listeners = 0;
public MinecraftServerExecutableDownloader(string version, string filePath, MinecraftServerExecutableDownloadListener listener) {
Register(listener);
Task = DownloadAndGetPath(fileDownloadInfo, minecraftVersion, filePath, new DownloadProgressCallback(this), cancellationTokenSource.Token);
Task = DownloadAndGetPath(version, filePath);
Task.ContinueWith(OnCompleted, TaskScheduler.Default);
}
public void Register(MinecraftServerExecutableDownloadListener listener) {
int newListenerCount;
++listeners;
Logger.Verbose("Registered download listener, current listener count: {Listeners}", listeners);
lock (this) {
newListenerCount = ++listenerCount;
DownloadProgress += listener.DownloadProgressEventHandler;
listenerCancellationRegistrations.Add(listener.CancellationToken.Register(Unregister, listener));
}
Logger.Debug("Registered download listener, current listener count: {Listeners}", newListenerCount);
DownloadProgress += listener.DownloadProgressEventHandler;
listener.CancellationToken.Register(Unregister, listener);
}
private void Unregister(object? listenerObject) {
int newListenerCount;
lock (this) {
MinecraftServerExecutableDownloadListener listener = (MinecraftServerExecutableDownloadListener) listenerObject!;
DownloadProgress -= listener.DownloadProgressEventHandler;
newListenerCount = --listenerCount;
if (newListenerCount <= 0) {
cancellationTokenSource.Cancel();
}
}
if (newListenerCount <= 0) {
Logger.Debug("Unregistered last download listener, cancelling download.");
MinecraftServerExecutableDownloadListener listener = (MinecraftServerExecutableDownloadListener) listenerObject!;
DownloadProgress -= listener.DownloadProgressEventHandler;
if (--listeners <= 0) {
Logger.Verbose("Unregistered last download listener, cancelling download.");
cancellationTokenSource.Cancel();
}
else {
Logger.Debug("Unregistered download listener, current listener count: {Listeners}", newListenerCount);
Logger.Verbose("Unregistered download listener, current listener count: {Listeners}", listeners);
}
}
private void ReportDownloadProgress(DownloadProgressEventArgs args) {
DownloadProgress?.Invoke(this, args);
}
private void OnCompleted(Task task) {
Logger.Debug("Download task completed.");
lock (this) {
Completed?.Invoke(this, EventArgs.Empty);
Completed = null;
DownloadProgress = null;
foreach (var registration in listenerCancellationRegistrations) {
registration.Dispose();
}
listenerCancellationRegistrations.Clear();
cancellationTokenSource.Dispose();
}
Logger.Verbose("Download task completed.");
Completed?.Invoke(this, EventArgs.Empty);
Completed = null;
DownloadProgress = null;
}
private sealed class DownloadProgressCallback {
private readonly MinecraftServerExecutableDownloader downloader;
public DownloadProgressCallback(MinecraftServerExecutableDownloader downloader) {
this.downloader = downloader;
}
public void ReportProgress(ulong downloadedBytes, ulong totalBytes) {
downloader.ReportDownloadProgress(new DownloadProgressEventArgs(downloadedBytes, totalBytes));
}
}
private static async Task<string?> DownloadAndGetPath(FileDownloadInfo fileDownloadInfo, string minecraftVersion, string filePath, DownloadProgressCallback progressCallback, CancellationToken cancellationToken) {
private async Task<string?> DownloadAndGetPath(string version, string filePath) {
Logger.Information("Downloading server version {Version}...", version);
HttpClient http = new HttpClient();
string tmpFilePath = filePath + ".tmp";
var cancellationToken = cancellationTokenSource.Token;
try {
Logger.Information("Downloading server version {Version} from: {Url} ({Size})", minecraftVersion, fileDownloadInfo.DownloadUrl, fileDownloadInfo.Size.ToHumanReadable(decimalPlaces: 1));
Logger.Information("Fetching version manifest from: {Url}", VersionManifestUrl);
var versionManifest = await FetchVersionManifest(http, cancellationToken);
var metadataUrl = GetVersionMetadataUrlFromManifest(version, versionManifest);
Logger.Information("Fetching metadata for version {Version} from: {Url}", version, metadataUrl);
var versionMetadata = await FetchVersionMetadata(http, metadataUrl, cancellationToken);
var serverExecutableInfo = GetServerExecutableUrlFromMetadata(versionMetadata);
Logger.Information("Downloading server executable from: {Url} ({Size})", serverExecutableInfo.DownloadUrl, serverExecutableInfo.Size.ToHumanReadable(decimalPlaces: 1));
try {
using var http = new HttpClient();
await FetchServerExecutableFile(http, progressCallback, fileDownloadInfo, tmpFilePath, cancellationToken);
await FetchServerExecutableFile(http, new DownloadProgressCallback(this), serverExecutableInfo, tmpFilePath, cancellationToken);
} catch (Exception) {
TryDeleteExecutableAfterFailure(tmpFilePath);
throw;
}
File.Move(tmpFilePath, filePath, overwrite: true);
Logger.Information("Server version {Version} downloaded.", minecraftVersion);
File.Move(tmpFilePath, filePath, true);
Logger.Information("Server version {Version} downloaded.", version);
return filePath;
} catch (OperationCanceledException) {
Logger.Information("Download for server version {Version} was cancelled.", minecraftVersion);
Logger.Information("Download for server version {Version} was cancelled.", version);
throw;
} catch (StopProcedureException) {
return null;
} catch (Exception e) {
Logger.Error(e, "An unexpected error occurred.");
return null;
} finally {
cancellationTokenSource.Dispose();
}
}
private static async Task FetchServerExecutableFile(HttpClient http, DownloadProgressCallback progressCallback, FileDownloadInfo fileDownloadInfo, string filePath, CancellationToken cancellationToken) {
Sha1String downloadedFileHash;
private static async Task<JsonElement> FetchVersionManifest(HttpClient http, CancellationToken cancellationToken) {
try {
var response = await http.GetAsync(fileDownloadInfo.DownloadUrl, HttpCompletionOption.ResponseHeadersRead, cancellationToken);
return await http.GetFromJsonAsync<JsonElement>(VersionManifestUrl, cancellationToken);
} catch (HttpRequestException e) {
Logger.Error(e, "Unable to download version manifest.");
throw StopProcedureException.Instance;
} catch (Exception e) {
Logger.Error(e, "Unable to parse version manifest as JSON.");
throw StopProcedureException.Instance;
}
}
private static async Task<JsonElement> FetchVersionMetadata(HttpClient http, string metadataUrl, CancellationToken cancellationToken) {
try {
return await http.GetFromJsonAsync<JsonElement>(metadataUrl, cancellationToken);
} catch (HttpRequestException e) {
Logger.Error(e, "Unable to download version metadata.");
throw StopProcedureException.Instance;
} catch (Exception e) {
Logger.Error(e, "Unable to parse version metadata as JSON.");
throw StopProcedureException.Instance;
}
}
private static async Task FetchServerExecutableFile(HttpClient http, DownloadProgressCallback progressCallback, ServerExecutableInfo info, string filePath, CancellationToken cancellationToken) {
Sha1String downloadedFileHash;
try {
var response = await http.GetAsync(info.DownloadUrl, HttpCompletionOption.ResponseHeadersRead, cancellationToken);
response.EnsureSuccessStatusCode();
await using var fileStream = new FileStream(filePath, FileMode.CreateNew, FileAccess.Write, FileShare.Read);
await using var responseStream = await response.Content.ReadAsStreamAsync(cancellationToken);
using var streamCopier = new MinecraftServerDownloadStreamCopier(progressCallback, fileDownloadInfo.Size.Bytes);
using var streamCopier = new MinecraftServerDownloadStreamCopier(progressCallback, info.Size.Bytes);
downloadedFileHash = await streamCopier.Copy(responseStream, fileStream, cancellationToken);
} catch (OperationCanceledException) {
throw;
@@ -139,13 +153,13 @@ sealed class MinecraftServerExecutableDownloader {
Logger.Error(e, "Unable to download server executable.");
throw StopProcedureException.Instance;
}
if (!downloadedFileHash.Equals(fileDownloadInfo.Hash)) {
Logger.Error("Downloaded server executable has mismatched SHA1 hash. Expected {Expected}, got {Actual}.", fileDownloadInfo.Hash, downloadedFileHash);
if (!downloadedFileHash.Equals(info.Hash)) {
Logger.Error("Downloaded server executable has mismatched SHA1 hash. Expected {Expected}, got {Actual}.", info.Hash, downloadedFileHash);
throw StopProcedureException.Instance;
}
}
private static void TryDeleteExecutableAfterFailure(string filePath) {
if (File.Exists(filePath)) {
try {
@@ -155,36 +169,119 @@ sealed class MinecraftServerExecutableDownloader {
}
}
}
private static string GetVersionMetadataUrlFromManifest(string serverVersion, JsonElement versionManifest) {
JsonElement versionsElement = GetJsonPropertyOrThrow(versionManifest, "versions", JsonValueKind.Array, "version manifest");
JsonElement versionElement;
try {
versionElement = versionsElement.EnumerateArray().Single(ele => ele.TryGetProperty("id", out var id) && id.ValueKind == JsonValueKind.String && id.GetString() == serverVersion);
} catch (Exception) {
Logger.Error("Version {Version} was not found in version manifest.", serverVersion);
throw StopProcedureException.Instance;
}
JsonElement urlElement = GetJsonPropertyOrThrow(versionElement, "url", JsonValueKind.String, "version entry in version manifest");
string? url = urlElement.GetString();
if (!Uri.TryCreate(url, UriKind.Absolute, out var uri)) {
Logger.Error("The \"url\" key in version entry in version manifest does not contain a valid URL: {Url}", url);
throw StopProcedureException.Instance;
}
if (uri.Scheme != "https" || !uri.AbsolutePath.EndsWith(".json", StringComparison.OrdinalIgnoreCase)) {
Logger.Error("The \"url\" key in version entry in version manifest does not contain a accepted URL: {Url}", url);
throw StopProcedureException.Instance;
}
return url;
}
private static ServerExecutableInfo GetServerExecutableUrlFromMetadata(JsonElement versionMetadata) {
JsonElement downloadsElement = GetJsonPropertyOrThrow(versionMetadata, "downloads", JsonValueKind.Object, "version metadata");
JsonElement serverElement = GetJsonPropertyOrThrow(downloadsElement, "server", JsonValueKind.Object, "downloads object in version metadata");
JsonElement urlElement = GetJsonPropertyOrThrow(serverElement, "url", JsonValueKind.String, "downloads.server object in version metadata");
string? url = urlElement.GetString();
if (!Uri.TryCreate(url, UriKind.Absolute, out var uri)) {
Logger.Error("The \"url\" key in downloads.server object in version metadata does not contain a valid URL: {Url}", url);
throw StopProcedureException.Instance;
}
if (uri.Scheme != "https" || !uri.AbsolutePath.EndsWith(".jar", StringComparison.OrdinalIgnoreCase)) {
Logger.Error("The \"url\" key in downloads.server object in version metadata does not contain a accepted URL: {Url}", url);
throw StopProcedureException.Instance;
}
JsonElement sizeElement = GetJsonPropertyOrThrow(serverElement, "size", JsonValueKind.Number, "downloads.server object in version metadata");
ulong size;
try {
size = sizeElement.GetUInt64();
} catch (FormatException) {
Logger.Error("The \"size\" key in downloads.server object in version metadata contains an invalid file size: {Size}", sizeElement);
throw StopProcedureException.Instance;
}
JsonElement sha1Element = GetJsonPropertyOrThrow(serverElement, "sha1", JsonValueKind.String, "downloads.server object in version metadata");
Sha1String hash;
try {
hash = Sha1String.FromString(sha1Element.GetString());
} catch (Exception) {
Logger.Error("The \"sha1\" key in downloads.server object in version metadata does not contain a valid SHA-1 hash: {Sha1}", sha1Element.GetString());
throw StopProcedureException.Instance;
}
return new ServerExecutableInfo(url, hash, new FileSize(size));
}
private static JsonElement GetJsonPropertyOrThrow(JsonElement parentElement, string propertyKey, JsonValueKind expectedKind, string location) {
if (!parentElement.TryGetProperty(propertyKey, out var valueElement)) {
Logger.Error("Missing \"{Property}\" key in " + location + ".", propertyKey);
throw StopProcedureException.Instance;
}
if (valueElement.ValueKind != expectedKind) {
Logger.Error("The \"{Property}\" key in " + location + " does not contain a JSON {ExpectedType}. Actual type: {ActualType}", propertyKey, expectedKind, valueElement.ValueKind);
throw StopProcedureException.Instance;
}
return valueElement;
}
private sealed class MinecraftServerDownloadStreamCopier : IDisposable {
private readonly StreamCopier streamCopier = new ();
private readonly IncrementalHash sha1 = IncrementalHash.CreateHash(HashAlgorithmName.SHA1);
private readonly DownloadProgressCallback progressCallback;
private readonly ulong totalBytes;
private ulong readBytes;
public MinecraftServerDownloadStreamCopier(DownloadProgressCallback progressCallback, ulong totalBytes) {
this.progressCallback = progressCallback;
this.totalBytes = totalBytes;
this.streamCopier.BufferReady += OnBufferReady;
}
private void OnBufferReady(object? sender, StreamCopier.BufferEventArgs args) {
sha1.AppendData(args.Buffer.Span);
readBytes += (uint) args.Buffer.Length;
progressCallback.ReportProgress(readBytes, totalBytes);
}
public async Task<Sha1String> Copy(Stream source, Stream destination, CancellationToken cancellationToken) {
await streamCopier.Copy(source, destination, cancellationToken);
return Sha1String.FromBytes(sha1.GetHashAndReset());
}
public void Dispose() {
sha1.Dispose();
streamCopier.Dispose();
}
}
private sealed class StopProcedureException : Exception {
public static StopProcedureException Instance { get; } = new ();
private StopProcedureException() {}
}
}

48
Agent/Phantom.Agent.Minecraft/Server/MinecraftServerExecutables.cs
View File

@@ -1,64 +1,56 @@
using System.Text.RegularExpressions;
using Phantom.Common.Data.Minecraft;
using Phantom.Utils.IO;
using Phantom.Utils.Logging;
using Phantom.Common.Logging;
using Serilog;
namespace Phantom.Agent.Minecraft.Server;
public sealed partial class MinecraftServerExecutables {
public sealed class MinecraftServerExecutables {
private static readonly ILogger Logger = PhantomLogger.Create<MinecraftServerExecutables>();
[GeneratedRegex(@"[^a-zA-Z0-9_\-\.]", RegexOptions.Compiled)]
private static partial Regex SanitizePathRegex();
private static readonly Regex VersionFolderSanitizeRegex = new (@"[^a-zA-Z0-9_\-\.]", RegexOptions.Compiled);
private readonly string basePath;
private readonly Dictionary<string, MinecraftServerExecutableDownloader> runningDownloadersByVersion = new ();
public MinecraftServerExecutables(string basePath) {
this.basePath = basePath;
}
internal async Task<string?> DownloadAndGetPath(FileDownloadInfo? fileDownloadInfo, string minecraftVersion, EventHandler<DownloadProgressEventArgs> progressEventHandler, CancellationToken cancellationToken) {
string serverExecutableFolderPath = Path.Combine(basePath, SanitizePathRegex().IsMatch(minecraftVersion) ? SanitizePathRegex().Replace(minecraftVersion, "_") : minecraftVersion);
internal async Task<string?> DownloadAndGetPath(string version, EventHandler<DownloadProgressEventArgs> progressEventHandler, CancellationToken cancellationToken) {
string serverExecutableFolderPath = Path.Combine(basePath, VersionFolderSanitizeRegex.Replace(version, "_"));
string serverExecutableFilePath = Path.Combine(serverExecutableFolderPath, "server.jar");
if (File.Exists(serverExecutableFilePath)) {
return serverExecutableFilePath;
}
if (fileDownloadInfo == null) {
Logger.Error("Unable to download server executable for version {Version} because no download info was provided.", minecraftVersion);
return null;
}
try {
Directories.Create(serverExecutableFolderPath, Chmod.URWX_GRX);
Directory.CreateDirectory(serverExecutableFolderPath);
} catch (Exception e) {
Logger.Error(e, "Unable to create folder for server executable: {ServerExecutableFolderPath}", serverExecutableFolderPath);
return null;
}
MinecraftServerExecutableDownloader? downloader;
MinecraftServerExecutableDownloadListener listener = new (progressEventHandler, cancellationToken);
lock (this) {
if (runningDownloadersByVersion.TryGetValue(minecraftVersion, out downloader)) {
Logger.Information("A download for server version {Version} is already running, waiting for it to finish...", minecraftVersion);
if (runningDownloadersByVersion.TryGetValue(version, out downloader)) {
Logger.Information("A download for server version {Version} is already running, waiting for it to finish...", version);
downloader.Register(listener);
}
else {
downloader = new MinecraftServerExecutableDownloader(fileDownloadInfo, minecraftVersion, serverExecutableFilePath, listener);
downloader = new MinecraftServerExecutableDownloader(version, serverExecutableFilePath, listener);
downloader.Completed += (_, _) => {
lock (this) {
runningDownloadersByVersion.Remove(minecraftVersion);
runningDownloadersByVersion.Remove(version);
}
};
runningDownloadersByVersion[minecraftVersion] = downloader;
runningDownloadersByVersion[version] = downloader;
}
}
return await downloader.Task.WaitAsync(cancellationToken);
}
}

10
Agent/Phantom.Agent.Minecraft/Server/ServerExecutableInfo.cs Normal file
View File

@@ -0,0 +1,10 @@
using Phantom.Utils.Cryptography;
using Phantom.Utils.IO;
namespace Phantom.Agent.Minecraft.Server;
sealed record ServerExecutableInfo(
string DownloadUrl,
Sha1String Hash,
FileSize Size
);

94
Agent/Phantom.Agent.Minecraft/Server/ServerStatusProtocol.cs
View File

@@ -1,94 +0,0 @@
using System.Buffers;
using System.Buffers.Binary;
using System.Net;
using System.Net.Sockets;
using System.Text;
using Phantom.Common.Data.Instance;
namespace Phantom.Agent.Minecraft.Server;
public static class ServerStatusProtocol {
public static async Task<InstancePlayerCounts> GetPlayerCounts(ushort serverPort, CancellationToken cancellationToken) {
using var tcpClient = new TcpClient();
await tcpClient.ConnectAsync(IPAddress.Loopback, serverPort, cancellationToken);
var tcpStream = tcpClient.GetStream();
// https://wiki.vg/Server_List_Ping
tcpStream.WriteByte(0xFE);
await tcpStream.FlushAsync(cancellationToken);
short messageLength = await ReadStreamHeader(tcpStream, cancellationToken);
return await ReadPlayerCounts(tcpStream, messageLength * 2, cancellationToken);
}
private static async Task<short> ReadStreamHeader(NetworkStream tcpStream, CancellationToken cancellationToken) {
var headerBuffer = ArrayPool<byte>.Shared.Rent(3);
try {
await tcpStream.ReadExactlyAsync(headerBuffer, offset: 0, count: 3, cancellationToken);
if (headerBuffer[0] != 0xFF) {
throw new ProtocolException("Unexpected first byte in response from server: " + headerBuffer[0]);
}
short messageLength = BinaryPrimitives.ReadInt16BigEndian(headerBuffer.AsSpan(1));
if (messageLength <= 0) {
throw new ProtocolException("Unexpected message length in response from server: " + messageLength);
}
return messageLength;
} finally {
ArrayPool<byte>.Shared.Return(headerBuffer);
}
}
private static async Task<InstancePlayerCounts> ReadPlayerCounts(NetworkStream tcpStream, int messageLength, CancellationToken cancellationToken) {
var messageBuffer = ArrayPool<byte>.Shared.Rent(messageLength);
try {
await tcpStream.ReadExactlyAsync(messageBuffer, offset: 0, messageLength, cancellationToken);
return ReadPlayerCountsFromResponse(messageBuffer.AsSpan(start: 0, messageLength));
} finally {
ArrayPool<byte>.Shared.Return(messageBuffer);
}
}
/// <summary>
/// Legacy query protocol uses the paragraph symbol (§) as separator encoded in UTF-16BE.
/// </summary>
private static readonly byte[] Separator = [0x00, 0xA7];
private static InstancePlayerCounts ReadPlayerCountsFromResponse(ReadOnlySpan<byte> messageBuffer) {
int lastSeparator = messageBuffer.LastIndexOf(Separator);
int middleSeparator = messageBuffer[..lastSeparator].LastIndexOf(Separator);
if (lastSeparator == -1 || middleSeparator == -1) {
throw new ProtocolException("Could not find message separators in response from server.");
}
var onlinePlayerCountBuffer = messageBuffer[(middleSeparator + Separator.Length)..lastSeparator];
var maximumPlayerCountBuffer = messageBuffer[(lastSeparator + Separator.Length)..];
// Player counts are integers, whose maximum string length is 10 characters.
Span<char> integerStringBuffer = stackalloc char[10];
return new InstancePlayerCounts(
DecodeAndParsePlayerCount(onlinePlayerCountBuffer, integerStringBuffer, "online"),
DecodeAndParsePlayerCount(maximumPlayerCountBuffer, integerStringBuffer, "maximum")
);
}
private static int DecodeAndParsePlayerCount(ReadOnlySpan<byte> inputBuffer, Span<char> tempCharBuffer, string countType) {
if (!Encoding.BigEndianUnicode.TryGetChars(inputBuffer, tempCharBuffer, out int charCount)) {
throw new ProtocolException("Could not decode " + countType + " player count in response from server.");
}
if (!int.TryParse(tempCharBuffer, out int playerCount)) {
throw new ProtocolException("Could not parse " + countType + " player count in response from server: " + tempCharBuffer[..charCount].ToString());
}
return playerCount;
}
public sealed class ProtocolException : Exception {
internal ProtocolException(string message) : base(message) {}
}
}

6
Common/Phantom.Common.Data.Web/Phantom.Common.Data.Web.csproj → Agent/Phantom.Agent.Rpc/Phantom.Agent.Rpc.csproj
View File

@@ -1,17 +1,17 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="BCrypt.Net-Next.StrongName" />
<PackageReference Include="MemoryPack" />
<PackageReference Include="Serilog" Version="2.12.0" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\Phantom.Common.Data\Phantom.Common.Data.csproj" />
<ProjectReference Include="..\..\Common\Phantom.Common.Messages\Phantom.Common.Messages.csproj" />
</ItemGroup>
</Project>

19
Agent/Phantom.Agent.Rpc/RpcExtensions.cs Normal file
View File

@@ -0,0 +1,19 @@
using NetMQ;
using NetMQ.Sockets;
using Phantom.Common.Messages;
using Phantom.Common.Messages.ToServer;
namespace Phantom.Agent.Rpc;
public static class RpcExtensions {
internal static async Task SendMessage<TMessage>(this ClientSocket socket, TMessage message) where TMessage : IMessageToServer {
byte[] bytes = MessageRegistries.ToServer.Write(message).ToArray();
if (bytes.Length > 0) {
await socket.SendAsync(bytes);
}
}
public static Task SendSimpleReply<TMessage, TReplyEnum>(this ClientSocket socket, TMessage message, TReplyEnum reply) where TMessage : IMessageWithReply where TReplyEnum : Enum {
return SendMessage(socket, SimpleReplyMessage.FromEnum(message.SequenceId, reply));
}
}

73
Agent/Phantom.Agent.Rpc/RpcLauncher.cs Normal file
View File

@@ -0,0 +1,73 @@
using NetMQ;
using NetMQ.Sockets;
using Phantom.Common.Data.Agent;
using Phantom.Common.Messages;
using Phantom.Common.Messages.ToServer;
using Phantom.Utils.Rpc;
using Serilog.Events;
namespace Phantom.Agent.Rpc;
public sealed class RpcLauncher : RpcRuntime<ClientSocket> {
public static async Task Launch(RpcConfiguration config, AgentAuthToken authToken, AgentInfo agentInfo, Func<ClientSocket, IMessageToAgentListener> listenerFactory) {
var socket = new ClientSocket();
var options = socket.Options;
options.CurveServerCertificate = config.ServerCertificate;
options.CurveCertificate = new NetMQCertificate();
options.HelloMessage = MessageRegistries.ToServer.Write(new RegisterAgentMessage(authToken, agentInfo)).ToArray();
await new RpcLauncher(config, socket, agentInfo.Guid, listenerFactory).Launch();
}
private readonly RpcConfiguration config;
private readonly Guid agentGuid;
private readonly Func<ClientSocket, IMessageToAgentListener> messageListenerFactory;
private RpcLauncher(RpcConfiguration config, ClientSocket socket, Guid agentGuid, Func<ClientSocket, IMessageToAgentListener> messageListenerFactory) : base(socket, config.CancellationToken) {
this.config = config;
this.agentGuid = agentGuid;
this.messageListenerFactory = messageListenerFactory;
}
protected override void Connect(ClientSocket socket) {
var logger = config.Logger;
var url = config.TcpUrl;
logger.Information("Starting ZeroMQ client and connecting to {Url}...", url);
socket.Connect(url);
logger.Information("ZeroMQ client ready.");
}
protected override async Task Run(ClientSocket socket, CancellationToken cancellationToken) {
var logger = config.Logger;
var listener = messageListenerFactory(socket);
ServerMessaging.SetCurrentSocket(socket, cancellationToken);
// TODO optimize msg
await foreach (var bytes in socket.ReceiveBytesAsyncEnumerable(cancellationToken)) {
if (logger.IsEnabled(LogEventLevel.Verbose)) {
if (bytes.Length > 0 && MessageRegistries.ToAgent.TryGetType(bytes, out var type)) {
logger.Verbose("Received {MessageType} ({Bytes} B) from server.", type.Name, bytes.Length);
}
else {
logger.Verbose("Received {Bytes} B message from server.", bytes.Length);
}
}
if (bytes.Length > 0) {
MessageRegistries.ToAgent.Handle(bytes, listener, cancellationToken);
}
}
}
protected override async Task Disconnect(ClientSocket socket) {
var timeoutTask = Task.Delay(TimeSpan.FromSeconds(5));
var finishedTask = await Task.WhenAny(socket.SendMessage(new UnregisterAgentMessage(agentGuid)), timeoutTask);
if (finishedTask == timeoutTask) {
config.Logger.Error("Timed out communicating agent shutdown with the server.");
}
}
}

55
Agent/Phantom.Agent.Rpc/ServerMessaging.cs Normal file
View File

@@ -0,0 +1,55 @@
using NetMQ.Sockets;
using Phantom.Common.Logging;
using Phantom.Common.Messages;
using Phantom.Common.Messages.ToServer;
using Serilog;
namespace Phantom.Agent.Rpc;
public static class ServerMessaging {
private static readonly ILogger Logger = PhantomLogger.Create(typeof(ServerMessaging));
private static readonly TimeSpan KeepAliveInterval = TimeSpan.FromSeconds(10);
private static ClientSocket? CurrentSocket { get; set; }
private static readonly object SetCurrentSocketLock = new ();
internal static void SetCurrentSocket(ClientSocket socket, CancellationToken cancellationToken) {
Logger.Information("Server socket ready.");
bool isFirstSet = false;
lock (SetCurrentSocketLock) {
if (CurrentSocket == null) {
isFirstSet = true;
}
CurrentSocket = socket;
}
if (isFirstSet) {
Task.Factory.StartNew(static o => SendKeepAliveLoop((CancellationToken) o!), cancellationToken, cancellationToken, TaskCreationOptions.LongRunning, TaskScheduler.Default);
}
}
public static async Task SendMessage<TMessage>(TMessage message) where TMessage : IMessageToServer {
var currentSocket = CurrentSocket ?? throw new InvalidOperationException("Server socket not ready.");
await currentSocket.SendMessage(message);
}
private static async Task SendKeepAliveLoop(CancellationToken cancellationToken) {
try {
while (true) {
await Task.Delay(KeepAliveInterval, cancellationToken);
var currentSocket = CurrentSocket;
if (currentSocket != null) {
await currentSocket.SendMessage(new AgentIsAliveMessage());
}
}
} catch (OperationCanceledException) {
// Ignore.
} finally {
Logger.Information("Stopped keep-alive loop.");
}
}
}

21
Agent/Phantom.Agent.Services/AgentFolders.cs
View File

@@ -1,45 +1,42 @@
using Phantom.Utils.IO;
using Phantom.Utils.Logging;
using Phantom.Common.Logging;
using Phantom.Utils.IO;
using Serilog;
namespace Phantom.Agent.Services;
public sealed class AgentFolders {
private static readonly ILogger Logger = PhantomLogger.Create<AgentFolders>();
public string DataFolderPath { get; }
public string InstancesFolderPath { get; }
public string BackupsFolderPath { get; }
public string TemporaryFolderPath { get; }
public string ServerExecutableFolderPath { get; }
public string JavaSearchFolderPath { get; }
public AgentFolders(string dataFolderPath, string temporaryFolderPath, string javaSearchFolderPath) {
this.DataFolderPath = Path.GetFullPath(dataFolderPath);
this.InstancesFolderPath = Path.Combine(DataFolderPath, "instances");
this.BackupsFolderPath = Path.Combine(DataFolderPath, "backups");
this.TemporaryFolderPath = Path.GetFullPath(temporaryFolderPath);
this.ServerExecutableFolderPath = Path.Combine(TemporaryFolderPath, "servers");
this.JavaSearchFolderPath = javaSearchFolderPath;
}
public bool TryCreate() {
return TryCreateFolder(DataFolderPath) &&
TryCreateFolder(InstancesFolderPath) &&
TryCreateFolder(BackupsFolderPath) &&
TryCreateFolder(TemporaryFolderPath) &&
TryCreateFolder(ServerExecutableFolderPath);
}
private static bool TryCreateFolder(string folderPath) {
if (Directory.Exists(folderPath)) {
return true;
}
try {
Directories.Create(folderPath, Chmod.URWX_GRX);
return true;

85
Agent/Phantom.Agent.Services/AgentRegistrationHandler.cs
View File

@@ -1,85 +0,0 @@
using System.Collections.Immutable;
using Phantom.Agent.Services.Instances;
using Phantom.Common.Data.Replies;
using Phantom.Common.Messages.Agent.ToAgent;
using Phantom.Utils.Logging;
using Phantom.Utils.Tasks;
using Phantom.Utils.Threading;
using Serilog;
namespace Phantom.Agent.Services;
public sealed class AgentRegistrationHandler {
private readonly ILogger logger = PhantomLogger.Create<AgentRegistrationHandler>();
private readonly ManualResetEventSlim newSessionEvent = new ();
private ImmutableArray<ConfigureInstanceMessage> lastConfigureInstanceMessages;
internal void OnRegistrationComplete(ImmutableArray<ConfigureInstanceMessage> configureInstanceMessages) {
ImmutableInterlocked.InterlockedExchange(ref lastConfigureInstanceMessages, configureInstanceMessages);
}
internal void OnNewSession() {
newSessionEvent.Set();
}
public async Task<bool> Start(AgentServices agentServices, CancellationToken cancellationToken) {
var configureInstanceMessages = ImmutableInterlocked.InterlockedExchange(ref lastConfigureInstanceMessages, value: default);
if (configureInstanceMessages.IsDefault) {
logger.Fatal("Handshake failed.");
return false;
}
foreach (var configureInstanceMessage in configureInstanceMessages) {
var configureInstanceResult = await agentServices.InstanceManager.Request(GetCommand(configureInstanceMessage), cancellationToken);
if (!configureInstanceResult.Is(ConfigureInstanceResult.Success)) {
logger.Fatal("Unable to configure instance \"{Name}\" (GUID {Guid}), shutting down.", configureInstanceMessage.Configuration.InstanceName, configureInstanceMessage.InstanceGuid);
return false;
}
}
agentServices.InstanceTicketManager.RefreshAgentStatus();
_ = HandleNewSessionRegistrations(agentServices, cancellationToken);
return true;
}
private async Task HandleNewSessionRegistrations(AgentServices agentServices, CancellationToken cancellationToken) {
while (cancellationToken.Check()) {
await newSessionEvent.WaitHandle.WaitOneAsync(cancellationToken);
newSessionEvent.Reset();
try {
await HandleNewSessionRegistration(agentServices, cancellationToken);
} catch (Exception e) {
logger.Error(e, "Could not configure instances after re-registration.");
}
}
}
private async Task HandleNewSessionRegistration(AgentServices agentServices, CancellationToken cancellationToken) {
var configureInstanceMessages = ImmutableInterlocked.InterlockedExchange(ref lastConfigureInstanceMessages, value: default);
if (configureInstanceMessages.IsDefaultOrEmpty) {
return;
}
foreach (var configureInstanceMessage in configureInstanceMessages) {
var configureInstanceResult = await agentServices.InstanceManager.Request(GetCommand(configureInstanceMessage), cancellationToken);
if (!configureInstanceResult.Is(ConfigureInstanceResult.Success)) {
logger.Error("Unable to configure instance \"{Name}\" (GUID {Guid}).", configureInstanceMessage.Configuration.InstanceName, configureInstanceMessage.InstanceGuid);
}
}
agentServices.InstanceTicketManager.RefreshAgentStatus();
}
private static InstanceManagerActor.ConfigureInstanceCommand GetCommand(ConfigureInstanceMessage configureInstanceMessage) {
return new InstanceManagerActor.ConfigureInstanceCommand(
configureInstanceMessage.InstanceGuid,
configureInstanceMessage.Configuration,
configureInstanceMessage.LaunchProperties,
configureInstanceMessage.LaunchNow,
AlwaysReportStatus: true
);
}
}

3
Agent/Phantom.Agent.Services/AgentServiceConfiguration.cs
View File

@@ -1,3 +0,0 @@
namespace Phantom.Agent.Services;
public readonly record struct AgentServiceConfiguration(int MaxConcurrentCompressionTasks);

55
Agent/Phantom.Agent.Services/AgentServices.cs
View File

@@ -1,51 +1,28 @@
using Akka.Actor;
using Phantom.Agent.Minecraft.Java;
using Phantom.Agent.Services.Backups;
using Phantom.Agent.Minecraft.Java;
using Phantom.Agent.Services.Instances;
using Phantom.Agent.Services.Rpc;
using Phantom.Common.Data.Agent;
using Phantom.Utils.Actor;
using Phantom.Utils.Logging;
using Serilog;
namespace Phantom.Agent.Services;
public sealed class AgentServices {
private static readonly ILogger Logger = PhantomLogger.Create<AgentServices>();
public ActorSystem ActorSystem { get; }
private AgentState AgentState { get; }
private BackupManager BackupManager { get; }
private AgentFolders AgentFolders { get; }
internal JavaRuntimeRepository JavaRuntimeRepository { get; }
internal InstanceTicketManager InstanceTicketManager { get; }
internal ActorRef<InstanceManagerActor.ICommand> InstanceManager { get; }
public AgentServices(AgentInfo agentInfo, AgentFolders agentFolders, AgentServiceConfiguration serviceConfiguration, ControllerConnection controllerConnection, JavaRuntimeRepository javaRuntimeRepository) {
this.ActorSystem = ActorSystemFactory.Create("Agent");
this.AgentState = new AgentState();
this.BackupManager = new BackupManager(agentFolders, serviceConfiguration.MaxConcurrentCompressionTasks);
this.JavaRuntimeRepository = javaRuntimeRepository;
this.InstanceTicketManager = new InstanceTicketManager(agentInfo, controllerConnection);
var instanceManagerInit = new InstanceManagerActor.Init(controllerConnection, agentFolders, AgentState, JavaRuntimeRepository, InstanceTicketManager, BackupManager);
this.InstanceManager = ActorSystem.ActorOf(InstanceManagerActor.Factory(instanceManagerInit), "InstanceManager");
internal InstanceSessionManager InstanceSessionManager { get; }
public AgentServices(AgentInfo agentInfo, AgentFolders agentFolders) {
this.AgentFolders = agentFolders;
this.JavaRuntimeRepository = new JavaRuntimeRepository();
this.InstanceSessionManager = new InstanceSessionManager(agentInfo, agentFolders, JavaRuntimeRepository);
}
public async Task Initialize() {
await foreach (var runtime in JavaRuntimeDiscovery.Scan(AgentFolders.JavaSearchFolderPath)) {
JavaRuntimeRepository.Include(runtime);
}
}
public async Task Shutdown() {
Logger.Information("Stopping services...");
await InstanceManager.Stop(new InstanceManagerActor.ShutdownCommand());
await InstanceTicketManager.Shutdown();
BackupManager.Dispose();
await ActorSystem.Terminate();
ActorSystem.Dispose();
Logger.Information("Services stopped.");
await InstanceSessionManager.StopAll();
}
}

15
Agent/Phantom.Agent.Services/AgentState.cs
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@@ -1,15 +0,0 @@
using System.Collections.Immutable;
using Phantom.Agent.Services.Instances;
using Phantom.Utils.Actor.Event;
namespace Phantom.Agent.Services;
sealed class AgentState {
private readonly ObservableState<ImmutableDictionary<Guid, Instance>> instancesByGuid = new (ImmutableDictionary<Guid, Instance>.Empty);
public ImmutableDictionary<Guid, Instance> InstancesByGuid => instancesByGuid.State;
public void UpdateInstance(Instance instance) {
instancesByGuid.PublisherSide.Publish(static (instancesByGuid, instance) => instancesByGuid.SetItem(instance.InstanceGuid, instance), instance);
}
}

180
Agent/Phantom.Agent.Services/Backups/BackupArchiver.cs
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@@ -1,180 +0,0 @@
using System.Collections.Immutable;
using System.Diagnostics.CodeAnalysis;
using System.Formats.Tar;
using Phantom.Agent.Minecraft.Instance;
using Phantom.Common.Data.Backups;
using Phantom.Utils.IO;
using Phantom.Utils.Logging;
using Serilog;
namespace Phantom.Agent.Services.Backups;
sealed class BackupArchiver {
private readonly string destinationBasePath;
private readonly string temporaryBasePath;
private readonly ILogger logger;
private readonly InstanceProperties instanceProperties;
private readonly CancellationToken cancellationToken;
public BackupArchiver(string destinationBasePath, string temporaryBasePath, string loggerName, InstanceProperties instanceProperties, CancellationToken cancellationToken) {
this.destinationBasePath = destinationBasePath;
this.temporaryBasePath = temporaryBasePath;
this.logger = PhantomLogger.Create<BackupArchiver>(loggerName);
this.instanceProperties = instanceProperties;
this.cancellationToken = cancellationToken;
}
private bool IsFolderSkipped(ImmutableList<string> relativePath) {
return relativePath is ["cache" or "crash-reports" or "debug" or "libraries" or "logs" or "mods" or "versions"];
}
[SuppressMessage("ReSharper", "ConvertIfStatementToReturnStatement")]
private bool IsFileSkipped(ImmutableList<string> relativePath) {
var name = relativePath[^1];
if (relativePath.Count == 2 && name == "session.lock") {
return true;
}
var extension = Path.GetExtension(name);
if (extension is ".jar" or ".zip") {
return true;
}
return false;
}
public async Task<string?> ArchiveWorld(BackupCreationResult.Builder resultBuilder) {
string guid = instanceProperties.InstanceGuid.ToString();
string currentDateTime = DateTime.Now.ToString("yyyyMMdd-HHmmss");
string backupFolderPath = Path.Combine(destinationBasePath, guid);
string backupFilePath = Path.Combine(backupFolderPath, currentDateTime + ".tar");
if (File.Exists(backupFilePath)) {
resultBuilder.Kind = BackupCreationResultKind.BackupFileAlreadyExists;
logger.Warning("Skipping backup, file already exists: {File}", backupFilePath);
return null;
}
try {
Directories.Create(backupFolderPath, Chmod.URWX_GRX);
} catch (Exception e) {
resultBuilder.Kind = BackupCreationResultKind.CouldNotCreateBackupFolder;
logger.Error(e, "Could not create backup folder: {Folder}", backupFolderPath);
return null;
}
string temporaryFolderPath = Path.Combine(temporaryBasePath, guid + "_" + currentDateTime);
if (!await CopyWorldAndCreateTarArchive(temporaryFolderPath, backupFilePath, resultBuilder)) {
return null;
}
logger.Debug("Created world backup: {FilePath}", backupFilePath);
return backupFilePath;
}
private async Task<bool> CopyWorldAndCreateTarArchive(string temporaryFolderPath, string backupFilePath, BackupCreationResult.Builder resultBuilder) {
try {
if (!await CopyWorldToTemporaryFolder(temporaryFolderPath)) {
resultBuilder.Kind = BackupCreationResultKind.CouldNotCopyWorldToTemporaryFolder;
return false;
}
if (!await CreateTarArchive(temporaryFolderPath, backupFilePath)) {
resultBuilder.Kind = BackupCreationResultKind.CouldNotCreateWorldArchive;
return false;
}
return true;
} finally {
try {
Directory.Delete(temporaryFolderPath, recursive: true);
} catch (Exception e) {
resultBuilder.Warnings |= BackupCreationWarnings.CouldNotDeleteTemporaryFolder;
logger.Error(e, "Could not delete temporary world folder: {Folder}", temporaryFolderPath);
}
}
}
private async Task<bool> CopyWorldToTemporaryFolder(string temporaryFolderPath) {
try {
await CopyDirectory(new DirectoryInfo(instanceProperties.InstanceFolder), temporaryFolderPath, ImmutableList<string>.Empty);
return true;
} catch (Exception e) {
logger.Error(e, "Could not copy world to temporary folder.");
return false;
}
}
private async Task<bool> CreateTarArchive(string sourceFolderPath, string backupFilePath) {
try {
await TarFile.CreateFromDirectoryAsync(sourceFolderPath, backupFilePath, includeBaseDirectory: false, cancellationToken);
return true;
} catch (Exception e) {
logger.Error(e, "Could not create archive.");
DeleteBrokenArchiveFile(backupFilePath);
return false;
}
}
private void DeleteBrokenArchiveFile(string filePath) {
if (File.Exists(filePath)) {
try {
File.Delete(filePath);
} catch (Exception e) {
logger.Error(e, "Could not delete broken archive: {File}", filePath);
}
}
}
private async Task CopyDirectory(DirectoryInfo sourceFolder, string destinationFolderPath, ImmutableList<string> relativePath) {
cancellationToken.ThrowIfCancellationRequested();
bool needsToCreateFolder = true;
foreach (FileInfo file in sourceFolder.EnumerateFiles()) {
var filePath = relativePath.Add(file.Name);
if (IsFileSkipped(filePath)) {
logger.Debug("Skipping file: {File}", string.Join(separator: '/', filePath));
continue;
}
if (needsToCreateFolder) {
needsToCreateFolder = false;
Directories.Create(destinationFolderPath, Chmod.URWX);
}
await CopyFileWithRetries(file, destinationFolderPath);
}
foreach (DirectoryInfo directory in sourceFolder.EnumerateDirectories()) {
var folderPath = relativePath.Add(directory.Name);
if (IsFolderSkipped(folderPath)) {
logger.Debug("Skipping folder: {Folder}", string.Join(separator: '/', folderPath));
continue;
}
await CopyDirectory(directory, Path.Join(destinationFolderPath, directory.Name), folderPath);
}
}
private async Task CopyFileWithRetries(FileInfo sourceFile, string destinationFolderPath) {
var destinationFilePath = Path.Combine(destinationFolderPath, sourceFile.Name);
const int TotalAttempts = 10;
for (int attempt = 1; attempt <= TotalAttempts; attempt++) {
try {
sourceFile.CopyTo(destinationFilePath);
return;
} catch (IOException) {
if (attempt == TotalAttempts) {
throw;
}
else {
logger.Warning("Failed copying file {File}, retrying...", sourceFile.FullName);
await Task.Delay(millisecondsDelay: 200, cancellationToken);
}
}
}
}
}

67
Agent/Phantom.Agent.Services/Backups/BackupCompressor.cs
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@@ -1,67 +0,0 @@
using Phantom.Utils.Logging;
using Phantom.Utils.Processes;
using Serilog;
namespace Phantom.Agent.Services.Backups;
static class BackupCompressor {
private static ILogger Logger { get; } = PhantomLogger.Create(nameof(BackupCompressor));
private static ILogger ZstdLogger { get; } = PhantomLogger.Create(nameof(BackupCompressor), "Zstd");
private const string Quality = "-10";
private const string Memory = "--long=26";
private const string Threads = "-T3";
public static async Task<string?> Compress(string sourceFilePath, CancellationToken cancellationToken) {
if (sourceFilePath.Contains('"')) {
Logger.Error("Could not compress backup, archive path contains quotes: {Path}", sourceFilePath);
return null;
}
var destinationFilePath = sourceFilePath + ".zst";
if (!await TryCompressFile(sourceFilePath, destinationFilePath, cancellationToken)) {
try {
File.Delete(destinationFilePath);
} catch (Exception e) {
Logger.Error(e, "Could not delete compresed archive after unsuccessful compression: {Path}", destinationFilePath);
}
return null;
}
return destinationFilePath;
}
private static async Task<bool> TryCompressFile(string sourceFilePath, string destinationFilePath, CancellationToken cancellationToken) {
var workingDirectory = Path.GetDirectoryName(sourceFilePath);
if (string.IsNullOrEmpty(workingDirectory)) {
Logger.Error("Invalid destination path: {Path}", destinationFilePath);
return false;
}
var launcher = new ProcessConfigurator {
FileName = "zstd",
WorkingDirectory = workingDirectory,
ArgumentList = {
Quality,
Memory,
Threads,
"--rm",
"--no-progress",
"-o", destinationFilePath,
"--", sourceFilePath,
},
};
static void OnZstdOutput(object? sender, Process.Output output) {
if (!string.IsNullOrWhiteSpace(output.Line)) {
ZstdLogger.Debug("[Output] {Line}", output.Line);
}
}
var process = new OneShotProcess(ZstdLogger, launcher);
process.OutputReceived += OnZstdOutput;
return await process.Run(cancellationToken);
}
}

140
Agent/Phantom.Agent.Services/Backups/BackupManager.cs
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@@ -1,140 +0,0 @@
using Phantom.Agent.Minecraft.Instance;
using Phantom.Common.Data.Backups;
using Phantom.Utils.Logging;
using Serilog;
namespace Phantom.Agent.Services.Backups;
sealed class BackupManager : IDisposable {
private readonly string destinationBasePath;
private readonly string temporaryBasePath;
private readonly SemaphoreSlim compressionSemaphore;
public BackupManager(AgentFolders agentFolders, int maxConcurrentCompressionTasks) {
this.destinationBasePath = agentFolders.BackupsFolderPath;
this.temporaryBasePath = Path.Combine(agentFolders.TemporaryFolderPath, "backups");
this.compressionSemaphore = new SemaphoreSlim(maxConcurrentCompressionTasks, maxConcurrentCompressionTasks);
}
public Task<BackupCreationResult> CreateBackup(string loggerName, InstanceProcess process, CancellationToken cancellationToken) {
return new BackupCreator(this, loggerName, process, cancellationToken).CreateBackup();
}
public void Dispose() {
compressionSemaphore.Dispose();
}
private sealed class BackupCreator {
private readonly BackupManager manager;
private readonly string loggerName;
private readonly ILogger logger;
private readonly InstanceProcess process;
private readonly CancellationToken cancellationToken;
public BackupCreator(BackupManager manager, string loggerName, InstanceProcess process, CancellationToken cancellationToken) {
this.manager = manager;
this.loggerName = loggerName;
this.logger = PhantomLogger.Create<BackupManager>(loggerName);
this.process = process;
this.cancellationToken = cancellationToken;
}
public async Task<BackupCreationResult> CreateBackup() {
logger.Information("Backup started.");
var resultBuilder = new BackupCreationResult.Builder();
string? backupFilePath;
using (var dispatcher = new BackupServerCommandDispatcher(logger, process, cancellationToken)) {
backupFilePath = await CreateWorldArchive(dispatcher, resultBuilder);
}
if (backupFilePath != null) {
await CompressWorldArchive(backupFilePath, resultBuilder);
}
var result = resultBuilder.Build();
LogBackupResult(result);
return result;
}
private async Task<string?> CreateWorldArchive(BackupServerCommandDispatcher dispatcher, BackupCreationResult.Builder resultBuilder) {
try {
await dispatcher.DisableAutomaticSaving();
await dispatcher.SaveAllChunks();
return await new BackupArchiver(manager.destinationBasePath, manager.temporaryBasePath, loggerName, process.InstanceProperties, cancellationToken).ArchiveWorld(resultBuilder);
} catch (OperationCanceledException) {
resultBuilder.Kind = BackupCreationResultKind.BackupCancelled;
logger.Warning("Backup creation was cancelled.");
return null;
} catch (TimeoutException) {
resultBuilder.Kind = BackupCreationResultKind.BackupTimedOut;
logger.Warning("Backup creation timed out.");
return null;
} catch (Exception e) {
resultBuilder.Kind = BackupCreationResultKind.UnknownError;
logger.Error(e, "Caught exception while creating an instance backup.");
return null;
} finally {
try {
await dispatcher.EnableAutomaticSaving();
} catch (OperationCanceledException) {
// Ignore.
} catch (TimeoutException) {
resultBuilder.Warnings |= BackupCreationWarnings.CouldNotRestoreAutomaticSaving;
logger.Warning("Timed out waiting for automatic saving to be re-enabled.");
} catch (Exception e) {
resultBuilder.Warnings |= BackupCreationWarnings.CouldNotRestoreAutomaticSaving;
logger.Error(e, "Caught exception while enabling automatic saving after creating an instance backup.");
}
}
}
private async Task CompressWorldArchive(string filePath, BackupCreationResult.Builder resultBuilder) {
if (!await manager.compressionSemaphore.WaitAsync(TimeSpan.FromSeconds(1), cancellationToken)) {
logger.Information("Too many compression tasks running, waiting for one of them to complete...");
await manager.compressionSemaphore.WaitAsync(cancellationToken);
}
logger.Information("Compressing backup...");
try {
var compressedFilePath = await BackupCompressor.Compress(filePath, cancellationToken);
if (compressedFilePath == null) {
resultBuilder.Warnings |= BackupCreationWarnings.CouldNotCompressWorldArchive;
}
} finally {
manager.compressionSemaphore.Release();
}
}
private void LogBackupResult(BackupCreationResult result) {
if (result.Kind != BackupCreationResultKind.Success) {
logger.Warning("Backup failed: {Reason}", DescribeResult(result.Kind));
return;
}
var warningCount = result.Warnings.Count();
if (warningCount > 0) {
logger.Warning("Backup finished with {Warnings} warning(s).", warningCount);
}
else {
logger.Information("Backup finished successfully.");
}
}
private static string DescribeResult(BackupCreationResultKind kind) {
return kind switch {
BackupCreationResultKind.Success => "Backup created successfully.",
BackupCreationResultKind.InstanceNotRunning => "Instance is not running.",
BackupCreationResultKind.BackupCancelled => "Backup cancelled.",
BackupCreationResultKind.BackupTimedOut => "Backup timed out.",
BackupCreationResultKind.BackupAlreadyRunning => "A backup is already being created.",
BackupCreationResultKind.BackupFileAlreadyExists => "Backup with the same name already exists.",
BackupCreationResultKind.CouldNotCreateBackupFolder => "Could not create backup folder.",
BackupCreationResultKind.CouldNotCopyWorldToTemporaryFolder => "Could not copy world to temporary folder.",
BackupCreationResultKind.CouldNotCreateWorldArchive => "Could not create world archive.",
_ => "Unknown error.",
};
}
}
}

85
Agent/Phantom.Agent.Services/Backups/BackupScheduler.cs
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@@ -1,85 +0,0 @@
using Phantom.Agent.Services.Instances;
using Phantom.Agent.Services.Instances.State;
using Phantom.Common.Data.Backups;
using Phantom.Utils.Logging;
using Phantom.Utils.Tasks;
namespace Phantom.Agent.Services.Backups;
sealed class BackupScheduler : CancellableBackgroundTask {
// TODO make configurable
private static readonly TimeSpan InitialDelay = TimeSpan.FromMinutes(2);
private static readonly TimeSpan BackupInterval = TimeSpan.FromMinutes(30);
private static readonly TimeSpan BackupFailureRetryDelay = TimeSpan.FromMinutes(5);
private readonly BackupManager backupManager;
private readonly InstanceContext context;
private readonly SemaphoreSlim backupSemaphore = new (initialCount: 1, maxCount: 1);
private readonly ManualResetEventSlim serverOutputWhileWaitingForOnlinePlayers = new ();
private readonly InstancePlayerCountTracker playerCountTracker;
public event EventHandler<BackupCreationResult>? BackupCompleted;
public BackupScheduler(InstanceContext context, InstancePlayerCountTracker playerCountTracker) : base(PhantomLogger.Create<BackupScheduler>(context.ShortName)) {
this.backupManager = context.Services.BackupManager;
this.context = context;
this.playerCountTracker = playerCountTracker;
Start();
}
protected override async Task RunTask() {
await Task.Delay(InitialDelay, CancellationToken);
Logger.Information("Starting a new backup after server launched.");
while (!CancellationToken.IsCancellationRequested) {
var result = await CreateBackup();
BackupCompleted?.Invoke(this, result);
if (result.Kind.ShouldRetry()) {
Logger.Warning("Scheduled backup failed, retrying in {Minutes} minutes.", BackupFailureRetryDelay.TotalMinutes);
await Task.Delay(BackupFailureRetryDelay, CancellationToken);
}
else {
Logger.Information("Scheduling next backup in {Minutes} minutes.", BackupInterval.TotalMinutes);
await Task.Delay(BackupInterval, CancellationToken);
await WaitForOnlinePlayers();
}
}
}
private async Task<BackupCreationResult> CreateBackup() {
if (!await backupSemaphore.WaitAsync(TimeSpan.FromSeconds(1))) {
return new BackupCreationResult(BackupCreationResultKind.BackupAlreadyRunning);
}
try {
context.ActorCancellationToken.ThrowIfCancellationRequested();
return await context.Actor.Request(new InstanceActor.BackupInstanceCommand(backupManager), context.ActorCancellationToken);
} catch (OperationCanceledException) {
return new BackupCreationResult(BackupCreationResultKind.InstanceNotRunning);
} finally {
backupSemaphore.Release();
}
}
private async Task WaitForOnlinePlayers() {
var task = playerCountTracker.WaitForOnlinePlayers(CancellationToken);
if (!task.IsCompleted) {
Logger.Information("Waiting for someone to join before starting a new backup.");
}
try {
await task;
Logger.Information("Players are online, starting a new backup.");
} catch (OperationCanceledException) {
throw;
} catch (Exception) {
Logger.Warning("Could not detect whether any players are online, starting a new backup.");
}
}
protected override void Dispose() {
backupSemaphore.Dispose();
serverOutputWhileWaitingForOnlinePlayers.Dispose();
}
}

98
Agent/Phantom.Agent.Services/Backups/BackupServerCommandDispatcher.cs
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@@ -1,98 +0,0 @@
using System.Collections.Immutable;
using System.Text.RegularExpressions;
using Phantom.Agent.Minecraft.Command;
using Phantom.Agent.Minecraft.Instance;
using Phantom.Utils.Tasks;
using Serilog;
namespace Phantom.Agent.Services.Backups;
sealed partial class BackupServerCommandDispatcher : IDisposable {
[GeneratedRegex(@"^(?:(?:\[.*?\] \[Server thread/INFO\].*?:)|(?:[\d-]+? [\d:]+? \[INFO\])) (.*?)$", RegexOptions.NonBacktracking)]
private static partial Regex ServerThreadInfoRegex();
private static readonly ImmutableHashSet<string> AutomaticSavingDisabledMessages = ImmutableHashSet.Create(
"Automatic saving is now disabled",
"Turned off world auto-saving",
"CONSOLE: Disabling level saving.."
);
private static readonly ImmutableHashSet<string> SavedTheGameMessages = ImmutableHashSet.Create(
"Saved the game",
"Saved the world",
"CONSOLE: Save complete."
);
private static readonly ImmutableHashSet<string> AutomaticSavingEnabledMessages = ImmutableHashSet.Create(
"Automatic saving is now enabled",
"Turned on world auto-saving",
"CONSOLE: Enabling level saving.."
);
private readonly ILogger logger;
private readonly InstanceProcess process;
private readonly CancellationToken cancellationToken;
private readonly TaskCompletionSource automaticSavingDisabled = AsyncTasks.CreateCompletionSource();
private readonly TaskCompletionSource savedTheGame = AsyncTasks.CreateCompletionSource();
private readonly TaskCompletionSource automaticSavingEnabled = AsyncTasks.CreateCompletionSource();
public BackupServerCommandDispatcher(ILogger logger, InstanceProcess process, CancellationToken cancellationToken) {
this.logger = logger;
this.process = process;
this.cancellationToken = cancellationToken;
this.process.AddOutputListener(OnOutput, maxLinesToReadFromHistory: 0);
}
void IDisposable.Dispose() {
process.RemoveOutputListener(OnOutput);
}
public async Task DisableAutomaticSaving() {
await process.SendCommand(MinecraftCommand.SaveOff, cancellationToken);
await automaticSavingDisabled.Task.WaitAsync(TimeSpan.FromSeconds(30), cancellationToken);
}
public async Task SaveAllChunks() {
await process.SendCommand(MinecraftCommand.SaveAll(flush: true), cancellationToken);
await savedTheGame.Task.WaitAsync(TimeSpan.FromMinutes(1), cancellationToken);
}
public async Task EnableAutomaticSaving() {
await process.SendCommand(MinecraftCommand.SaveOn, cancellationToken);
await automaticSavingEnabled.Task.WaitAsync(TimeSpan.FromMinutes(1), cancellationToken);
}
private void OnOutput(object? sender, string? line) {
if (line == null) {
return;
}
var match = ServerThreadInfoRegex().Match(line);
if (!match.Success) {
return;
}
string info = match.Groups[1].Value;
if (!automaticSavingDisabled.Task.IsCompleted) {
if (AutomaticSavingDisabledMessages.Contains(info)) {
logger.Debug("Detected that automatic saving is disabled.");
automaticSavingDisabled.SetResult();
}
}
else if (!savedTheGame.Task.IsCompleted) {
if (SavedTheGameMessages.Contains(info)) {
logger.Debug("Detected that the game is saved.");
savedTheGame.SetResult();
}
}
else if (!automaticSavingEnabled.Task.IsCompleted) {
if (AutomaticSavingEnabledMessages.Contains(info)) {
logger.Debug("Detected that automatic saving is enabled.");
automaticSavingEnabled.SetResult();
}
}
}
}

171
Agent/Phantom.Agent.Services/Instances/Instance.cs
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@@ -1,5 +1,172 @@
using Phantom.Common.Data.Instance;
using Phantom.Agent.Minecraft.Launcher;
using Phantom.Agent.Rpc;
using Phantom.Agent.Services.Instances.States;
using Phantom.Common.Data.Instance;
using Phantom.Common.Data.Replies;
using Phantom.Common.Logging;
using Phantom.Common.Messages.ToServer;
using Serilog;
namespace Phantom.Agent.Services.Instances;
sealed record Instance(Guid InstanceGuid, IInstanceStatus Status);
sealed class Instance : IDisposable {
private static uint loggerSequenceId = 0;
private static string GetLoggerName(Guid guid) {
var prefix = guid.ToString();
return prefix[..prefix.IndexOf('-')] + "/" + Interlocked.Increment(ref loggerSequenceId);
}
public static async Task<Instance> Create(InstanceConfiguration configuration, BaseLauncher launcher, LaunchServices launchServices, PortManager portManager) {
var instance = new Instance(configuration, launcher, launchServices, portManager);
await instance.ReportLastStatus();
return instance;
}
public InstanceConfiguration Configuration { get; private set; }
private BaseLauncher Launcher { get; set; }
private readonly string shortName;
private readonly ILogger logger;
private readonly LaunchServices launchServices;
private readonly PortManager portManager;
private InstanceStatus currentStatus;
private IInstanceState currentState;
private readonly SemaphoreSlim stateTransitioningActionSemaphore = new (1, 1);
private Instance(InstanceConfiguration configuration, BaseLauncher launcher, LaunchServices launchServices, PortManager portManager) {
this.shortName = GetLoggerName(configuration.InstanceGuid);
this.logger = PhantomLogger.Create<Instance>(shortName);
this.Configuration = configuration;
this.Launcher = launcher;
this.launchServices = launchServices;
this.portManager = portManager;
this.currentState = new InstanceNotRunningState();
this.currentStatus = InstanceStatus.IsNotRunning;
}
private async Task ReportLastStatus() {
await ServerMessaging.SendMessage(new ReportInstanceStatusMessage(Configuration.InstanceGuid, currentStatus));
}
private bool TransitionState(IInstanceState newState) {
if (currentState == newState) {
return false;
}
if (currentState is IDisposable disposable) {
disposable.Dispose();
}
currentState = newState;
return true;
}
public async Task Reconfigure(InstanceConfiguration configuration, BaseLauncher launcher, CancellationToken cancellationToken) {
await stateTransitioningActionSemaphore.WaitAsync(cancellationToken);
try {
Configuration = configuration;
Launcher = launcher;
await ReportLastStatus();
} finally {
stateTransitioningActionSemaphore.Release();
}
}
public async Task<LaunchInstanceResult> Launch(CancellationToken cancellationToken) {
await stateTransitioningActionSemaphore.WaitAsync(cancellationToken);
try {
if (TransitionState(currentState.Launch(new InstanceContextImpl(this)))) {
return LaunchInstanceResult.LaunchInitiated;
}
return currentState switch {
InstanceLaunchingState => LaunchInstanceResult.InstanceAlreadyLaunching,
InstanceRunningState => LaunchInstanceResult.InstanceAlreadyRunning,
InstanceStoppingState => LaunchInstanceResult.InstanceIsStopping,
_ => LaunchInstanceResult.UnknownError
};
} finally {
stateTransitioningActionSemaphore.Release();
}
}
public async Task<StopInstanceResult> Stop() {
await stateTransitioningActionSemaphore.WaitAsync();
try {
if (TransitionState(currentState.Stop())) {
return StopInstanceResult.StopInitiated;
}
return currentState switch {
InstanceNotRunningState => StopInstanceResult.InstanceAlreadyStopped,
InstanceLaunchingState => StopInstanceResult.StopInitiated,
InstanceStoppingState => StopInstanceResult.InstanceAlreadyStopping,
_ => StopInstanceResult.UnknownError
};
} finally {
stateTransitioningActionSemaphore.Release();
}
}
public async Task StopAndWait(TimeSpan waitTime) {
await Stop();
using var waitTokenSource = new CancellationTokenSource(waitTime);
var waitToken = waitTokenSource.Token;
while (currentState is not InstanceNotRunningState) {
await Task.Delay(TimeSpan.FromMilliseconds(250), waitToken);
}
}
public async Task<bool> SendCommand(string command, CancellationToken cancellationToken) {
return await currentState.SendCommand(command, cancellationToken);
}
private sealed class InstanceContextImpl : InstanceContext {
private readonly Instance instance;
private int statusUpdateCounter;
public InstanceContextImpl(Instance instance) : base(instance.Configuration, instance.Launcher) {
this.instance = instance;
}
public override LaunchServices LaunchServices => instance.launchServices;
public override PortManager PortManager => instance.portManager;
public override ILogger Logger => instance.logger;
public override string ShortName => instance.shortName;
public override void ReportStatus(InstanceStatus newStatus) {
int myStatusUpdateCounter = Interlocked.Increment(ref statusUpdateCounter);
Task.Run(async () => {
if (myStatusUpdateCounter == statusUpdateCounter) {
instance.currentStatus = newStatus;
await ServerMessaging.SendMessage(new ReportInstanceStatusMessage(Configuration.InstanceGuid, newStatus));
}
});
}
public override void TransitionState(Func<IInstanceState> newState) {
instance.stateTransitioningActionSemaphore.Wait();
try {
instance.TransitionState(newState());
} finally {
instance.stateTransitioningActionSemaphore.Release();
}
}
}
public void Dispose() {
if (currentState is IDisposable disposable) {
disposable.Dispose();
}
stateTransitioningActionSemaphore.Dispose();
}
}

174
Agent/Phantom.Agent.Services/Instances/InstanceActor.cs
View File

@@ -1,174 +0,0 @@
using Phantom.Agent.Minecraft.Launcher;
using Phantom.Agent.Services.Backups;
using Phantom.Agent.Services.Instances.State;
using Phantom.Agent.Services.Rpc;
using Phantom.Common.Data.Backups;
using Phantom.Common.Data.Instance;
using Phantom.Common.Data.Minecraft;
using Phantom.Common.Data.Replies;
using Phantom.Common.Messages.Agent.ToController;
using Phantom.Utils.Actor;
using Phantom.Utils.Actor.Mailbox;
using Phantom.Utils.Logging;
namespace Phantom.Agent.Services.Instances;
sealed class InstanceActor : ReceiveActor<InstanceActor.ICommand> {
public readonly record struct Init(AgentState AgentState, Guid InstanceGuid, string ShortName, InstanceServices InstanceServices, InstanceTicketManager InstanceTicketManager, CancellationToken ShutdownCancellationToken);
public static Props<ICommand> Factory(Init init) {
return Props<ICommand>.Create(() => new InstanceActor(init), new ActorConfiguration { SupervisorStrategy = SupervisorStrategies.Resume, MailboxType = UnboundedJumpAheadMailbox.Name });
}
private readonly AgentState agentState;
private readonly CancellationToken shutdownCancellationToken;
private readonly Guid instanceGuid;
private readonly InstanceTicketManager instanceTicketManager;
private readonly InstanceContext context;
private readonly ControllerSendQueue<ReportInstanceStatusMessage> reportStatusQueue;
private readonly ControllerSendQueue<ReportInstanceEventMessage> reportEventsQueue;
private readonly CancellationTokenSource actorCancellationTokenSource = new ();
private IInstanceStatus currentStatus = InstanceStatus.NotRunning;
private InstanceRunningState? runningState = null;
private InstanceActor(Init init) {
InstanceServices services = init.InstanceServices;
this.agentState = init.AgentState;
this.instanceGuid = init.InstanceGuid;
this.instanceTicketManager = init.InstanceTicketManager;
this.shutdownCancellationToken = init.ShutdownCancellationToken;
this.reportStatusQueue = new ControllerSendQueue<ReportInstanceStatusMessage>(services.ControllerConnection, init.ShortName + "-Status", capacity: 1, singleWriter: true);
this.reportEventsQueue = new ControllerSendQueue<ReportInstanceEventMessage>(services.ControllerConnection, init.ShortName + "-Events", capacity: 1000, singleWriter: true);
var logger = PhantomLogger.Create<InstanceActor>(init.ShortName);
this.context = new InstanceContext(instanceGuid, init.ShortName, logger, services, reportEventsQueue, SelfTyped, actorCancellationTokenSource.Token);
Receive<ReportInstanceStatusCommand>(ReportInstanceStatus);
ReceiveAsync<LaunchInstanceCommand>(LaunchInstance);
ReceiveAsync<StopInstanceCommand>(StopInstance);
ReceiveAsyncAndReply<SendCommandToInstanceCommand, SendCommandToInstanceResult>(SendCommandToInstance);
ReceiveAsyncAndReply<BackupInstanceCommand, BackupCreationResult>(BackupInstance);
Receive<HandleProcessEndedCommand>(HandleProcessEnded);
ReceiveAsync<ShutdownCommand>(Shutdown);
}
private void SetAndReportStatus(IInstanceStatus status) {
currentStatus = status;
ReportCurrentStatus();
}
private void ReportCurrentStatus() {
agentState.UpdateInstance(new Instance(instanceGuid, currentStatus));
reportStatusQueue.Enqueue(new ReportInstanceStatusMessage(instanceGuid, currentStatus));
}
private void TransitionState(InstanceRunningState? newState) {
if (runningState == newState) {
return;
}
runningState?.Dispose();
runningState = newState;
runningState?.Initialize();
}
public interface ICommand;
public sealed record ReportInstanceStatusCommand : ICommand;
public sealed record LaunchInstanceCommand(InstanceConfiguration Configuration, IServerLauncher Launcher, InstanceTicketManager.Ticket Ticket, bool IsRestarting) : ICommand;
public sealed record StopInstanceCommand(MinecraftStopStrategy StopStrategy) : ICommand;
public sealed record SendCommandToInstanceCommand(string Command) : ICommand, ICanReply<SendCommandToInstanceResult>;
public sealed record BackupInstanceCommand(BackupManager BackupManager) : ICommand, ICanReply<BackupCreationResult>;
public sealed record HandleProcessEndedCommand(IInstanceStatus Status) : ICommand, IJumpAhead;
public sealed record ShutdownCommand : ICommand;
private void ReportInstanceStatus(ReportInstanceStatusCommand command) {
ReportCurrentStatus();
}
private async Task LaunchInstance(LaunchInstanceCommand command) {
if (command.IsRestarting || runningState is null) {
SetAndReportStatus(command.IsRestarting ? InstanceStatus.Restarting : InstanceStatus.Launching);
var newState = await InstanceLaunchProcedure.Run(context, command.Configuration, command.Launcher, instanceTicketManager, command.Ticket, SetAndReportStatus, shutdownCancellationToken);
if (newState is null) {
instanceTicketManager.Release(command.Ticket);
}
TransitionState(newState);
}
}
private async Task StopInstance(StopInstanceCommand command) {
if (runningState is null) {
return;
}
IInstanceStatus oldStatus = currentStatus;
SetAndReportStatus(InstanceStatus.Stopping);
if (await InstanceStopProcedure.Run(context, command.StopStrategy, runningState, SetAndReportStatus, shutdownCancellationToken)) {
instanceTicketManager.Release(runningState.Ticket);
TransitionState(null);
}
else {
SetAndReportStatus(oldStatus);
}
}
private async Task<SendCommandToInstanceResult> SendCommandToInstance(SendCommandToInstanceCommand command) {
if (runningState is null) {
return SendCommandToInstanceResult.InstanceNotRunning;
}
else {
return await runningState.SendCommand(command.Command, shutdownCancellationToken);
}
}
private async Task<BackupCreationResult> BackupInstance(BackupInstanceCommand command) {
if (runningState is null || runningState.Process.HasEnded) {
return new BackupCreationResult(BackupCreationResultKind.InstanceNotRunning);
}
else {
SetAndReportStatus(InstanceStatus.BackingUp);
try {
return await command.BackupManager.CreateBackup(context.ShortName, runningState.Process, shutdownCancellationToken);
} finally {
SetAndReportStatus(InstanceStatus.Running);
}
}
}
private void HandleProcessEnded(HandleProcessEndedCommand command) {
if (runningState is { Process.HasEnded: true }) {
SetAndReportStatus(command.Status);
context.ReportEvent(InstanceEvent.Stopped);
instanceTicketManager.Release(runningState.Ticket);
TransitionState(null);
}
}
private async Task Shutdown(ShutdownCommand command) {
await StopInstance(new StopInstanceCommand(MinecraftStopStrategy.Instant));
await actorCancellationTokenSource.CancelAsync();
await Task.WhenAll(
reportStatusQueue.Shutdown(TimeSpan.FromSeconds(5)),
reportEventsQueue.Shutdown(TimeSpan.FromSeconds(5))
);
Context.Stop(Self);
}
}

35
Agent/Phantom.Agent.Services/Instances/InstanceContext.cs
View File

@@ -1,21 +1,28 @@
using Phantom.Agent.Services.Rpc;
using Phantom.Agent.Minecraft.Launcher;
using Phantom.Agent.Services.Instances.States;
using Phantom.Common.Data.Instance;
using Phantom.Common.Messages.Agent.ToController;
using Phantom.Utils.Actor;
using Serilog;
namespace Phantom.Agent.Services.Instances;
sealed record InstanceContext(
Guid InstanceGuid,
string ShortName,
ILogger Logger,
InstanceServices Services,
ControllerSendQueue<ReportInstanceEventMessage> ReportEventQueue,
ActorRef<InstanceActor.ICommand> Actor,
CancellationToken ActorCancellationToken
) {
public void ReportEvent(IInstanceEvent instanceEvent) {
ReportEventQueue.Enqueue(new ReportInstanceEventMessage(Guid.NewGuid(), DateTime.UtcNow, InstanceGuid, instanceEvent));
abstract class InstanceContext {
public InstanceConfiguration Configuration { get; }
public BaseLauncher Launcher { get; }
public abstract LaunchServices LaunchServices { get; }
public abstract PortManager PortManager { get; }
public abstract ILogger Logger { get; }
public abstract string ShortName { get; }
protected InstanceContext(InstanceConfiguration configuration, BaseLauncher launcher) {
Configuration = configuration;
Launcher = launcher;
}
public abstract void ReportStatus(InstanceStatus newStatus);
public abstract void TransitionState(Func<IInstanceState> newState);
public void TransitionState(IInstanceState newState) {
TransitionState(() => newState);
}
}

84
Agent/Phantom.Agent.Services/Instances/InstanceLogSenderThread.cs Normal file
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@@ -0,0 +1,84 @@
using System.Collections.Immutable;
using System.Diagnostics.CodeAnalysis;
using Phantom.Agent.Rpc;
using Phantom.Common.Logging;
using Phantom.Common.Messages.ToServer;
using Phantom.Utils.Collections;
using Serilog;
namespace Phantom.Agent.Services.Instances;
sealed class InstanceLogSenderThread {
private readonly Guid instanceGuid;
private readonly ILogger logger;
private readonly CancellationTokenSource cancellationTokenSource;
private readonly CancellationToken cancellationToken;
private readonly SemaphoreSlim semaphore = new (1, 1);
private readonly RingBuffer<string> buffer = new (1000);
public InstanceLogSenderThread(Guid instanceGuid, string name) {
this.instanceGuid = instanceGuid;
this.logger = PhantomLogger.Create<InstanceLogSenderThread>(name);
this.cancellationTokenSource = new CancellationTokenSource();
this.cancellationToken = cancellationTokenSource.Token;
var thread = new Thread(Run) {
IsBackground = true,
Name = "Instance Log Sender (" + name + ")"
};
thread.Start();
}
[SuppressMessage("ReSharper", "LocalVariableHidesMember")]
private async void Run() {
logger.Verbose("Thread started.");
try {
while (!cancellationToken.IsCancellationRequested) {
await semaphore.WaitAsync(cancellationToken);
ImmutableArray<string> lines;
try {
lines = buffer.Count > 0 ? buffer.EnumerateLast(uint.MaxValue).ToImmutableArray() : ImmutableArray<string>.Empty;
buffer.Clear();
} finally {
semaphore.Release();
}
if (lines.Length > 0) {
await ServerMessaging.SendMessage(new InstanceOutputMessage(instanceGuid, lines));
}
await Task.Delay(TimeSpan.FromMilliseconds(200), cancellationToken);
}
} catch (OperationCanceledException) {
// Ignore.
} catch (Exception e) {
logger.Error(e, "Caught exception in thread.");
} finally {
cancellationTokenSource.Dispose();
logger.Verbose("Thread stopped.");
}
}
public void Enqueue(string line) {
try {
semaphore.Wait(cancellationToken);
} catch (Exception) {
return;
}
try {
buffer.Add(line);
} finally {
semaphore.Release();
}
}
public void Cancel() {
cancellationTokenSource.Cancel();
}
}

204
Agent/Phantom.Agent.Services/Instances/InstanceManagerActor.cs
View File

@@ -1,204 +0,0 @@
using Phantom.Agent.Minecraft.Instance;
using Phantom.Agent.Minecraft.Java;
using Phantom.Agent.Minecraft.Launcher;
using Phantom.Agent.Minecraft.Launcher.Types;
using Phantom.Agent.Minecraft.Properties;
using Phantom.Agent.Minecraft.Server;
using Phantom.Agent.Services.Backups;
using Phantom.Agent.Services.Rpc;
using Phantom.Common.Data;
using Phantom.Common.Data.Instance;
using Phantom.Common.Data.Minecraft;
using Phantom.Common.Data.Replies;
using Phantom.Utils.Actor;
using Phantom.Utils.IO;
using Phantom.Utils.Logging;
using Serilog;
namespace Phantom.Agent.Services.Instances;
sealed class InstanceManagerActor : ReceiveActor<InstanceManagerActor.ICommand> {
private static readonly ILogger Logger = PhantomLogger.Create<InstanceManagerActor>();
public readonly record struct Init(ControllerConnection ControllerConnection, AgentFolders AgentFolders, AgentState AgentState, JavaRuntimeRepository JavaRuntimeRepository, InstanceTicketManager InstanceTicketManager, BackupManager BackupManager);
public static Props<ICommand> Factory(Init init) {
return Props<ICommand>.Create(() => new InstanceManagerActor(init), new ActorConfiguration { SupervisorStrategy = SupervisorStrategies.Resume });
}
private readonly AgentState agentState;
private readonly string basePath;
private readonly InstanceServices instanceServices;
private readonly InstanceTicketManager instanceTicketManager;
private readonly Dictionary<Guid, InstanceInfo> instances = new ();
private readonly CancellationTokenSource shutdownCancellationTokenSource = new ();
private readonly CancellationToken shutdownCancellationToken;
private uint instanceLoggerSequenceId = 0;
private InstanceManagerActor(Init init) {
this.agentState = init.AgentState;
this.basePath = init.AgentFolders.InstancesFolderPath;
this.instanceTicketManager = init.InstanceTicketManager;
this.shutdownCancellationToken = shutdownCancellationTokenSource.Token;
var minecraftServerExecutables = new MinecraftServerExecutables(init.AgentFolders.ServerExecutableFolderPath);
var launchServices = new LaunchServices(minecraftServerExecutables, init.JavaRuntimeRepository);
this.instanceServices = new InstanceServices(init.ControllerConnection, init.BackupManager, launchServices);
ReceiveAndReply<ConfigureInstanceCommand, Result<ConfigureInstanceResult, InstanceActionFailure>>(ConfigureInstance);
ReceiveAndReply<LaunchInstanceCommand, Result<LaunchInstanceResult, InstanceActionFailure>>(LaunchInstance);
ReceiveAndReply<StopInstanceCommand, Result<StopInstanceResult, InstanceActionFailure>>(StopInstance);
ReceiveAsyncAndReply<SendCommandToInstanceCommand, Result<SendCommandToInstanceResult, InstanceActionFailure>>(SendCommandToInstance);
ReceiveAsync<ShutdownCommand>(Shutdown);
}
private sealed record InstanceInfo(ActorRef<InstanceActor.ICommand> Actor, InstanceConfiguration Configuration, IServerLauncher Launcher);
public interface ICommand;
public sealed record ConfigureInstanceCommand(Guid InstanceGuid, InstanceConfiguration Configuration, InstanceLaunchProperties LaunchProperties, bool LaunchNow, bool AlwaysReportStatus) : ICommand, ICanReply<Result<ConfigureInstanceResult, InstanceActionFailure>>;
public sealed record LaunchInstanceCommand(Guid InstanceGuid) : ICommand, ICanReply<Result<LaunchInstanceResult, InstanceActionFailure>>;
public sealed record StopInstanceCommand(Guid InstanceGuid, MinecraftStopStrategy StopStrategy) : ICommand, ICanReply<Result<StopInstanceResult, InstanceActionFailure>>;
public sealed record SendCommandToInstanceCommand(Guid InstanceGuid, string Command) : ICommand, ICanReply<Result<SendCommandToInstanceResult, InstanceActionFailure>>;
public sealed record ShutdownCommand : ICommand;
private Result<ConfigureInstanceResult, InstanceActionFailure> ConfigureInstance(ConfigureInstanceCommand command) {
var instanceGuid = command.InstanceGuid;
var configuration = command.Configuration;
var instanceFolder = Path.Combine(basePath, instanceGuid.ToString());
Directories.Create(instanceFolder, Chmod.URWX_GRX);
var heapMegabytes = configuration.MemoryAllocation.InMegabytes;
var jvmProperties = new JvmProperties(
InitialHeapMegabytes: heapMegabytes / 2,
MaximumHeapMegabytes: heapMegabytes
);
var properties = new InstanceProperties(
instanceGuid,
configuration.JavaRuntimeGuid,
jvmProperties,
configuration.JvmArguments,
instanceFolder,
configuration.MinecraftVersion,
new ServerProperties(configuration.ServerPort, configuration.RconPort),
command.LaunchProperties
);
IServerLauncher launcher = configuration.MinecraftServerKind switch {
MinecraftServerKind.Vanilla => new VanillaLauncher(properties),
MinecraftServerKind.Fabric => new FabricLauncher(properties),
_ => InvalidLauncher.Instance,
};
if (instances.TryGetValue(instanceGuid, out var instance)) {
instances[instanceGuid] = instance with {
Configuration = configuration,
Launcher = launcher,
};
Logger.Information("Reconfigured instance \"{Name}\" (GUID {Guid}).", configuration.InstanceName, instanceGuid);
if (command.AlwaysReportStatus) {
instance.Actor.Tell(new InstanceActor.ReportInstanceStatusCommand());
}
}
else {
var instanceLoggerName = PhantomLogger.ShortenGuid(instanceGuid) + "/" + Interlocked.Increment(ref instanceLoggerSequenceId);
var instanceInit = new InstanceActor.Init(agentState, instanceGuid, instanceLoggerName, instanceServices, instanceTicketManager, shutdownCancellationToken);
instances[instanceGuid] = instance = new InstanceInfo(Context.ActorOf(InstanceActor.Factory(instanceInit), "Instance-" + instanceGuid), configuration, launcher);
Logger.Information("Created instance \"{Name}\" (GUID {Guid}).", configuration.InstanceName, instanceGuid);
instance.Actor.Tell(new InstanceActor.ReportInstanceStatusCommand());
}
if (command.LaunchNow) {
LaunchInstance(new LaunchInstanceCommand(instanceGuid));
}
return ConfigureInstanceResult.Success;
}
private Result<LaunchInstanceResult, InstanceActionFailure> LaunchInstance(LaunchInstanceCommand command) {
var instanceGuid = command.InstanceGuid;
if (!instances.TryGetValue(instanceGuid, out var instanceInfo)) {
return InstanceActionFailure.InstanceDoesNotExist;
}
var ticket = instanceTicketManager.Reserve(instanceInfo.Configuration);
if (!ticket) {
return ticket.Error;
}
if (agentState.InstancesByGuid.TryGetValue(instanceGuid, out var instance)) {
var status = instance.Status;
if (status.IsRunning()) {
return LaunchInstanceResult.InstanceAlreadyRunning;
}
else if (status.IsLaunching()) {
return LaunchInstanceResult.InstanceAlreadyLaunching;
}
}
instanceInfo.Actor.Tell(new InstanceActor.LaunchInstanceCommand(instanceInfo.Configuration, instanceInfo.Launcher, ticket.Value, IsRestarting: false));
return LaunchInstanceResult.LaunchInitiated;
}
private Result<StopInstanceResult, InstanceActionFailure> StopInstance(StopInstanceCommand command) {
var instanceGuid = command.InstanceGuid;
if (!instances.TryGetValue(instanceGuid, out var instanceInfo)) {
return InstanceActionFailure.InstanceDoesNotExist;
}
if (agentState.InstancesByGuid.TryGetValue(instanceGuid, out var instance)) {
var status = instance.Status;
if (status.IsStopping()) {
return StopInstanceResult.InstanceAlreadyStopping;
}
else if (!status.CanStop()) {
return StopInstanceResult.InstanceAlreadyStopped;
}
}
instanceInfo.Actor.Tell(new InstanceActor.StopInstanceCommand(command.StopStrategy));
return StopInstanceResult.StopInitiated;
}
private async Task<Result<SendCommandToInstanceResult, InstanceActionFailure>> SendCommandToInstance(SendCommandToInstanceCommand command) {
var instanceGuid = command.InstanceGuid;
if (!instances.TryGetValue(instanceGuid, out var instanceInfo)) {
return InstanceActionFailure.InstanceDoesNotExist;
}
try {
return await instanceInfo.Actor.Request(new InstanceActor.SendCommandToInstanceCommand(command.Command), shutdownCancellationToken);
} catch (OperationCanceledException) {
return InstanceActionFailure.AgentShuttingDown;
}
}
private async Task Shutdown(ShutdownCommand command) {
Logger.Information("Stopping all instances...");
await shutdownCancellationTokenSource.CancelAsync();
await Task.WhenAll(instances.Values.Select(static instance => instance.Actor.Stop(new InstanceActor.ShutdownCommand())));
instances.Clear();
shutdownCancellationTokenSource.Dispose();
Logger.Information("All instances stopped.");
Context.Stop(Self);
}
}

7
Agent/Phantom.Agent.Services/Instances/InstanceServices.cs
View File

@@ -1,7 +0,0 @@
using Phantom.Agent.Minecraft.Launcher;
using Phantom.Agent.Services.Backups;
using Phantom.Agent.Services.Rpc;
namespace Phantom.Agent.Services.Instances;
sealed record InstanceServices(ControllerConnection ControllerConnection, BackupManager BackupManager, LaunchServices LaunchServices);

172
Agent/Phantom.Agent.Services/Instances/InstanceSessionManager.cs Normal file
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@@ -0,0 +1,172 @@
using Phantom.Agent.Minecraft.Instance;
using Phantom.Agent.Minecraft.Java;
using Phantom.Agent.Minecraft.Launcher;
using Phantom.Agent.Minecraft.Launcher.Types;
using Phantom.Agent.Minecraft.Properties;
using Phantom.Agent.Minecraft.Server;
using Phantom.Common.Data;
using Phantom.Common.Data.Agent;
using Phantom.Common.Data.Instance;
using Phantom.Common.Data.Replies;
using Phantom.Common.Logging;
using Serilog;
namespace Phantom.Agent.Services.Instances;
sealed class InstanceSessionManager : IDisposable {
private static readonly ILogger Logger = PhantomLogger.Create<InstanceSessionManager>();
private readonly AgentInfo agentInfo;
private readonly string basePath;
private readonly LaunchServices launchServices;
private readonly PortManager portManager;
private readonly Dictionary<Guid, Instance> instances = new ();
private readonly CancellationTokenSource shutdownCancellationTokenSource = new ();
private readonly CancellationToken shutdownCancellationToken;
private readonly SemaphoreSlim semaphore = new (1, 1);
public InstanceSessionManager(AgentInfo agentInfo, AgentFolders agentFolders, JavaRuntimeRepository javaRuntimeRepository) {
this.agentInfo = agentInfo;
this.basePath = agentFolders.InstancesFolderPath;
this.launchServices = new LaunchServices(new MinecraftServerExecutables(agentFolders.ServerExecutableFolderPath), javaRuntimeRepository);
this.portManager = new PortManager(agentInfo.AllowedServerPorts, agentInfo.AllowedRconPorts);
this.shutdownCancellationToken = shutdownCancellationTokenSource.Token;
}
public async Task<ConfigureInstanceResult> Configure(InstanceConfiguration configuration) {
try {
await semaphore.WaitAsync(shutdownCancellationToken);
} catch (OperationCanceledException) {
return ConfigureInstanceResult.AgentShuttingDown;
}
var instanceGuid = configuration.InstanceGuid;
try {
var otherInstances = instances.Values.Where(inst => inst.Configuration.InstanceGuid != instanceGuid).ToArray();
if (otherInstances.Length + 1 > agentInfo.MaxInstances) {
return ConfigureInstanceResult.InstanceLimitExceeded;
}
var availableMemory = agentInfo.MaxMemory - otherInstances.Aggregate(RamAllocationUnits.Zero, static (total, instance) => total + instance.Configuration.MemoryAllocation);
if (availableMemory < configuration.MemoryAllocation) {
return ConfigureInstanceResult.MemoryLimitExceeded;
}
var heapMegabytes = configuration.MemoryAllocation.InMegabytes;
var jvmProperties = new JvmProperties(
InitialHeapMegabytes: heapMegabytes / 2,
MaximumHeapMegabytes: heapMegabytes
);
var instanceFolder = Path.Combine(basePath, instanceGuid.ToString());
Directory.CreateDirectory(instanceFolder);
var properties = new InstanceProperties(
configuration.JavaRuntimeGuid,
jvmProperties,
instanceFolder,
configuration.MinecraftVersion,
new ServerProperties(configuration.ServerPort, configuration.RconPort)
);
BaseLauncher launcher = new VanillaLauncher(properties);
if (instances.TryGetValue(instanceGuid, out var instance)) {
await instance.Reconfigure(configuration, launcher, shutdownCancellationToken);
Logger.Information("Reconfigured instance \"{Name}\" (GUID {Guid}).", configuration.InstanceName, configuration.InstanceGuid);
}
else {
instances[instanceGuid] = instance = await Instance.Create(configuration, launcher, launchServices, portManager);
Logger.Information("Created instance \"{Name}\" (GUID {Guid}).", configuration.InstanceName, configuration.InstanceGuid);
}
if (configuration.LaunchAutomatically) {
await instance.Launch(shutdownCancellationToken);
}
return ConfigureInstanceResult.Success;
} finally {
semaphore.Release();
}
}
public async Task<LaunchInstanceResult> Launch(Guid instanceGuid) {
try {
await semaphore.WaitAsync(shutdownCancellationToken);
} catch (OperationCanceledException) {
return LaunchInstanceResult.AgentShuttingDown;
}
try {
if (!instances.TryGetValue(instanceGuid, out var instance)) {
return LaunchInstanceResult.InstanceDoesNotExist;
}
else {
return await instance.Launch(shutdownCancellationToken);
}
} finally {
semaphore.Release();
}
}
public async Task<StopInstanceResult> Stop(Guid instanceGuid) {
try {
await semaphore.WaitAsync(shutdownCancellationToken);
} catch (OperationCanceledException) {
return StopInstanceResult.AgentShuttingDown;
}
try {
if (!instances.TryGetValue(instanceGuid, out var instance)) {
return StopInstanceResult.InstanceDoesNotExist;
}
else {
return await instance.Stop();
}
} finally {
semaphore.Release();
}
}
public async Task<SendCommandToInstanceResult> SendCommand(Guid instanceGuid, string command) {
try {
await semaphore.WaitAsync(shutdownCancellationToken);
} catch (OperationCanceledException) {
return SendCommandToInstanceResult.AgentShuttingDown;
}
try {
if (!instances.TryGetValue(instanceGuid, out var instance)) {
return SendCommandToInstanceResult.InstanceDoesNotExist;
}
if (!await instance.SendCommand(command, shutdownCancellationToken)) {
return SendCommandToInstanceResult.UnknownError;
}
return SendCommandToInstanceResult.Success;
} finally {
semaphore.Release();
}
}
public async Task StopAll() {
shutdownCancellationTokenSource.Cancel();
await semaphore.WaitAsync(CancellationToken.None);
try {
await Task.WhenAll(instances.Values.Select(static instance => instance.StopAndWait(TimeSpan.FromSeconds(30))));
instances.Clear();
} finally {
semaphore.Release();
}
}
public void Dispose() {
shutdownCancellationTokenSource.Dispose();
semaphore.Dispose();
}
}

97
Agent/Phantom.Agent.Services/Instances/InstanceTicketManager.cs
View File

@@ -1,97 +0,0 @@
using Phantom.Agent.Services.Rpc;
using Phantom.Common.Data;
using Phantom.Common.Data.Agent;
using Phantom.Common.Data.Instance;
using Phantom.Common.Data.Replies;
using Phantom.Common.Messages.Agent.ToController;
using Phantom.Utils.Logging;
using Serilog;
namespace Phantom.Agent.Services.Instances;
sealed class InstanceTicketManager(AgentInfo agentInfo, ControllerConnection controllerConnection) {
private static readonly ILogger Logger = PhantomLogger.Create<InstanceTicketManager>();
private readonly ControllerSendQueue<ReportAgentStatusMessage> reportStatusQueue = new (controllerConnection, nameof(InstanceTicketManager), capacity: 1, singleWriter: true);
private readonly HashSet<Guid> activeTicketGuids = [];
private readonly HashSet<ushort> usedPorts = [];
private RamAllocationUnits usedMemory = new ();
public Result<Ticket, LaunchInstanceResult> Reserve(InstanceConfiguration configuration) {
var memoryAllocation = configuration.MemoryAllocation;
var serverPort = configuration.ServerPort;
var rconPort = configuration.RconPort;
if (!agentInfo.AllowedServerPorts.Contains(serverPort)) {
return LaunchInstanceResult.ServerPortNotAllowed;
}
if (!agentInfo.AllowedRconPorts.Contains(rconPort)) {
return LaunchInstanceResult.RconPortNotAllowed;
}
lock (this) {
if (activeTicketGuids.Count + 1 > agentInfo.MaxInstances) {
return LaunchInstanceResult.InstanceLimitExceeded;
}
if (usedMemory + memoryAllocation > agentInfo.MaxMemory) {
return LaunchInstanceResult.MemoryLimitExceeded;
}
if (usedPorts.Contains(serverPort)) {
return LaunchInstanceResult.ServerPortAlreadyInUse;
}
if (usedPorts.Contains(rconPort)) {
return LaunchInstanceResult.RconPortAlreadyInUse;
}
var ticket = new Ticket(Guid.NewGuid(), memoryAllocation, serverPort, rconPort);
activeTicketGuids.Add(ticket.TicketGuid);
usedMemory += memoryAllocation;
usedPorts.Add(serverPort);
usedPorts.Add(rconPort);
RefreshAgentStatus();
Logger.Debug("Reserved ticket {TicketGuid} (server port {ServerPort}, rcon port {RconPort}, memory allocation {MemoryAllocation} MB).", ticket.TicketGuid, ticket.ServerPort, ticket.RconPort, ticket.MemoryAllocation.InMegabytes);
return ticket;
}
}
public bool IsValid(Ticket ticket) {
lock (this) {
return activeTicketGuids.Contains(ticket.TicketGuid);
}
}
public void Release(Ticket ticket) {
lock (this) {
if (!activeTicketGuids.Remove(ticket.TicketGuid)) {
return;
}
usedMemory -= ticket.MemoryAllocation;
usedPorts.Remove(ticket.ServerPort);
usedPorts.Remove(ticket.RconPort);
RefreshAgentStatus();
Logger.Debug("Released ticket {TicketGuid} (server port {ServerPort}, rcon port {RconPort}, memory allocation {MemoryAllocation} MB).", ticket.TicketGuid, ticket.ServerPort, ticket.RconPort, ticket.MemoryAllocation.InMegabytes);
}
}
public void RefreshAgentStatus() {
lock (this) {
reportStatusQueue.Enqueue(new ReportAgentStatusMessage(activeTicketGuids.Count, usedMemory));
}
}
public async Task Shutdown() {
await reportStatusQueue.Shutdown(TimeSpan.FromSeconds(5));
}
public sealed record Ticket(Guid TicketGuid, RamAllocationUnits MemoryAllocation, ushort ServerPort, ushort RconPort);
}

47
Agent/Phantom.Agent.Services/Instances/PortManager.cs Normal file
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using Phantom.Common.Data;
using Phantom.Common.Data.Instance;
namespace Phantom.Agent.Services.Instances;
sealed class PortManager {
private readonly AllowedPorts allowedServerPorts;
private readonly AllowedPorts allowedRconPorts;
private readonly HashSet<ushort> usedPorts = new ();
public PortManager(AllowedPorts allowedServerPorts, AllowedPorts allowedRconPorts) {
this.allowedServerPorts = allowedServerPorts;
this.allowedRconPorts = allowedRconPorts;
}
public Result Reserve(InstanceConfiguration configuration) {
lock (usedPorts) {
if (usedPorts.Contains(configuration.ServerPort)) {
return Result.ServerPortAlreadyInUse;
}
if (usedPorts.Contains(configuration.RconPort)) {
return Result.RconPortAlreadyInUse;
}
usedPorts.Add(configuration.ServerPort);
usedPorts.Add(configuration.RconPort);
}
return Result.Success;
}
public void Release(InstanceConfiguration configuration) {
lock (usedPorts) {
usedPorts.Remove(configuration.ServerPort);
usedPorts.Remove(configuration.RconPort);
}
}
public enum Result {
Success,
ServerPortNotAllowed,
ServerPortAlreadyInUse,
RconPortNotAllowed,
RconPortAlreadyInUse,
}
}

86
Agent/Phantom.Agent.Services/Instances/State/InstanceLaunchProcedure.cs
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@@ -1,86 +0,0 @@
using Phantom.Agent.Minecraft.Instance;
using Phantom.Agent.Minecraft.Launcher;
using Phantom.Agent.Minecraft.Server;
using Phantom.Common.Data;
using Phantom.Common.Data.Instance;
namespace Phantom.Agent.Services.Instances.State;
static class InstanceLaunchProcedure {
public static async Task<InstanceRunningState?> Run(InstanceContext context, InstanceConfiguration configuration, IServerLauncher launcher, InstanceTicketManager ticketManager, InstanceTicketManager.Ticket ticket, Action<IInstanceStatus> reportStatus, CancellationToken cancellationToken) {
context.Logger.Information("Session starting...");
Result<InstanceProcess, InstanceLaunchFailReason> result;
if (ticketManager.IsValid(ticket)) {
try {
result = await LaunchInstance(context, launcher, reportStatus, cancellationToken);
} catch (OperationCanceledException) {
reportStatus(InstanceStatus.NotRunning);
return null;
} catch (Exception e) {
context.Logger.Error(e, "Caught exception while launching instance.");
result = InstanceLaunchFailReason.UnknownError;
}
}
else {
context.Logger.Error("Attempted to launch instance with an invalid ticket!");
result = InstanceLaunchFailReason.UnknownError;
}
if (result) {
reportStatus(InstanceStatus.Running);
context.ReportEvent(InstanceEvent.LaunchSucceeded);
return new InstanceRunningState(context, configuration, launcher, ticket, result.Value, cancellationToken);
}
else {
reportStatus(InstanceStatus.Failed(result.Error));
context.ReportEvent(new InstanceLaunchFailedEvent(result.Error));
return null;
}
}
private static async Task<Result<InstanceProcess, InstanceLaunchFailReason>> LaunchInstance(InstanceContext context, IServerLauncher launcher, Action<IInstanceStatus> reportStatus, CancellationToken cancellationToken) {
cancellationToken.ThrowIfCancellationRequested();
byte lastDownloadProgress = byte.MaxValue;
void OnDownloadProgress(object? sender, DownloadProgressEventArgs args) {
byte progress = (byte) Math.Min(args.DownloadedBytes * 100 / args.TotalBytes, val2: 100);
if (lastDownloadProgress != progress) {
lastDownloadProgress = progress;
reportStatus(InstanceStatus.Downloading(progress));
}
}
switch (await launcher.Launch(context.Logger, context.Services.LaunchServices, OnDownloadProgress, cancellationToken)) {
case LaunchResult.Success launchSuccess:
return launchSuccess.Process;
case LaunchResult.InvalidJavaRuntime:
context.Logger.Error("Session failed to launch, invalid Java runtime.");
return InstanceLaunchFailReason.JavaRuntimeNotFound;
case LaunchResult.CouldNotDownloadMinecraftServer:
context.Logger.Error("Session failed to launch, could not download Minecraft server.");
return InstanceLaunchFailReason.CouldNotDownloadMinecraftServer;
case LaunchResult.CouldNotPrepareMinecraftServerLauncher:
context.Logger.Error("Session failed to launch, could not prepare Minecraft server launcher.");
return InstanceLaunchFailReason.CouldNotPrepareMinecraftServerLauncher;
case LaunchResult.CouldNotConfigureMinecraftServer:
context.Logger.Error("Session failed to launch, could not configure Minecraft server.");
return InstanceLaunchFailReason.CouldNotConfigureMinecraftServer;
case LaunchResult.CouldNotStartMinecraftServer:
context.Logger.Error("Session failed to launch, could not start Minecraft server.");
return InstanceLaunchFailReason.CouldNotStartMinecraftServer;
default:
context.Logger.Error("Session failed to launch.");
return InstanceLaunchFailReason.UnknownError;
}
}
}

100
Agent/Phantom.Agent.Services/Instances/State/InstanceLogSender.cs
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@@ -1,100 +0,0 @@
using System.Collections.Immutable;
using System.Diagnostics.CodeAnalysis;
using System.Threading.Channels;
using Phantom.Agent.Services.Rpc;
using Phantom.Common.Messages.Agent.ToController;
using Phantom.Utils.Logging;
using Phantom.Utils.Tasks;
namespace Phantom.Agent.Services.Instances.State;
sealed class InstanceLogSender : CancellableBackgroundTask {
private static readonly BoundedChannelOptions BufferOptions = new (capacity: 200) {
SingleReader = true,
SingleWriter = true,
FullMode = BoundedChannelFullMode.DropNewest,
};
private static readonly TimeSpan SendDelay = TimeSpan.FromMilliseconds(200);
private readonly ControllerConnection controllerConnection;
private readonly Guid instanceGuid;
private readonly Channel<string> outputChannel;
private int droppedLinesSinceLastSend;
public InstanceLogSender(ControllerConnection controllerConnection, Guid instanceGuid, string loggerName) : base(PhantomLogger.Create<InstanceLogSender>(loggerName)) {
this.controllerConnection = controllerConnection;
this.instanceGuid = instanceGuid;
this.outputChannel = Channel.CreateBounded<string>(BufferOptions, OnLineDropped);
Start();
}
protected override async Task RunTask() {
var lineReader = outputChannel.Reader;
var lineBuilder = ImmutableArray.CreateBuilder<string>();
using var sendOutputCancellationTokenSource = new CancellationTokenSource();
await using var sendOutputCancellationRegistration = CancellationToken.Register([SuppressMessage("ReSharper", "AccessToDisposedClosure")]() => {
sendOutputCancellationTokenSource.CancelAfter(TimeSpan.FromSeconds(10));
});
var sendOutputCancellationToken = sendOutputCancellationTokenSource.Token;
try {
while (await lineReader.WaitToReadAsync(CancellationToken)) {
await Task.Delay(SendDelay, CancellationToken);
await SendOutputToServer(ReadLinesFromChannel(lineReader, lineBuilder), sendOutputCancellationToken);
}
} catch (OperationCanceledException) {
// Ignore.
}
// Flush remaining lines.
try {
await SendOutputToServer(ReadLinesFromChannel(lineReader, lineBuilder), sendOutputCancellationToken);
} catch (OperationCanceledException) {
// Ignore.
}
}
private ImmutableArray<string> ReadLinesFromChannel(ChannelReader<string> reader, ImmutableArray<string>.Builder builder) {
builder.Clear();
while (reader.TryRead(out string? line)) {
builder.Add(line);
}
int droppedLines = Interlocked.Exchange(ref droppedLinesSinceLastSend, value: 0);
if (droppedLines > 0) {
builder.Add($"Dropped {droppedLines} {(droppedLines == 1 ? "line" : "lines")} due to buffer overflow.");
}
return builder.ToImmutable();
}
private ValueTask SendOutputToServer(ImmutableArray<string> lines, CancellationToken cancellationToken) {
if (lines.IsEmpty) {
return ValueTask.CompletedTask;
}
else {
return controllerConnection.Send(new InstanceOutputMessage(instanceGuid, lines), cancellationToken);
}
}
private void OnLineDropped(string line) {
Logger.Warning("Buffer is full, dropped line: {Line}", line);
Interlocked.Increment(ref droppedLinesSinceLastSend);
}
public void Enqueue(string line) {
outputChannel.Writer.TryWrite(line);
}
protected override void Dispose() {
if (!outputChannel.Writer.TryComplete()) {
Logger.Error("Could not mark channel as completed.");
}
}
}

150
Agent/Phantom.Agent.Services/Instances/State/InstancePlayerCountTracker.cs
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@@ -1,150 +0,0 @@
using System.Net.Sockets;
using Phantom.Agent.Minecraft.Instance;
using Phantom.Agent.Minecraft.Server;
using Phantom.Agent.Services.Rpc;
using Phantom.Common.Data.Instance;
using Phantom.Common.Messages.Agent.ToController;
using Phantom.Utils.Logging;
using Phantom.Utils.Tasks;
using Phantom.Utils.Threading;
namespace Phantom.Agent.Services.Instances.State;
sealed class InstancePlayerCountTracker : CancellableBackgroundTask {
private readonly ControllerConnection controllerConnection;
private readonly Guid instanceGuid;
private readonly ushort serverPort;
private readonly InstanceProcess process;
private readonly TaskCompletionSource firstDetection = AsyncTasks.CreateCompletionSource();
private readonly ManualResetEventSlim serverOutputEvent = new ();
private bool WaitingForFirstDetection => !firstDetection.Task.IsCompleted;
private InstancePlayerCounts? playerCounts;
private event EventHandler<int?>? OnlinePlayerCountChanged;
private bool isDisposed = false;
public InstancePlayerCountTracker(InstanceContext context, InstanceProcess process, ushort serverPort) : base(PhantomLogger.Create<InstancePlayerCountTracker>(context.ShortName)) {
this.controllerConnection = context.Services.ControllerConnection;
this.instanceGuid = context.InstanceGuid;
this.process = process;
this.serverPort = serverPort;
Start();
}
protected override async Task RunTask() {
// Give the server time to start accepting connections.
await Task.Delay(TimeSpan.FromSeconds(5), CancellationToken);
serverOutputEvent.Set();
process.AddOutputListener(OnOutput, maxLinesToReadFromHistory: 0);
while (CancellationToken.Check()) {
serverOutputEvent.Reset();
InstancePlayerCounts? latestPlayerCounts = await TryGetPlayerCounts();
UpdatePlayerCounts(latestPlayerCounts);
if (latestPlayerCounts == null) {
await Task.Delay(WaitingForFirstDetection ? TimeSpan.FromSeconds(5) : TimeSpan.FromSeconds(10), CancellationToken);
}
else {
await Task.Delay(TimeSpan.FromSeconds(10), CancellationToken);
await serverOutputEvent.WaitHandle.WaitOneAsync(CancellationToken);
await Task.Delay(TimeSpan.FromSeconds(1), CancellationToken);
}
}
}
private async Task<InstancePlayerCounts?> TryGetPlayerCounts() {
try {
return await ServerStatusProtocol.GetPlayerCounts(serverPort, CancellationToken);
} catch (ServerStatusProtocol.ProtocolException e) {
Logger.Error("{Message}", e.Message);
return null;
} catch (SocketException e) {
bool waitingForServerStart = e.SocketErrorCode == SocketError.ConnectionRefused && WaitingForFirstDetection;
if (!waitingForServerStart) {
Logger.Warning("Could not check online player count. Socket error {ErrorCode} ({ErrorCodeName}), reason: {ErrorMessage}", e.ErrorCode, e.SocketErrorCode, e.Message);
}
return null;
} catch (Exception e) {
Logger.Error(e, "Caught exception while checking online player count.");
return null;
}
}
private void UpdatePlayerCounts(InstancePlayerCounts? newPlayerCounts) {
if (newPlayerCounts is {} value) {
Logger.Debug("Detected {OnlinePlayerCount} / {MaximumPlayerCount} online player(s).", value.Online, value.Maximum);
firstDetection.TrySetResult();
}
EventHandler<int?>? onlinePlayerCountChanged;
lock (this) {
if (playerCounts == newPlayerCounts) {
return;
}
playerCounts = newPlayerCounts;
onlinePlayerCountChanged = OnlinePlayerCountChanged;
}
onlinePlayerCountChanged?.Invoke(this, newPlayerCounts?.Online);
if (!controllerConnection.TrySend(new ReportInstancePlayerCountsMessage(instanceGuid, newPlayerCounts))) {
Logger.Warning("Could not report online player count to Controller.");
}
}
public async Task WaitForOnlinePlayers(CancellationToken cancellationToken) {
await firstDetection.Task.WaitAsync(cancellationToken);
var onlinePlayersDetected = AsyncTasks.CreateCompletionSource();
lock (this) {
if (playerCounts is { Online: > 0 }) {
return;
}
else if (playerCounts == null) {
throw new InvalidOperationException();
}
OnlinePlayerCountChanged += OnOnlinePlayerCountChanged;
void OnOnlinePlayerCountChanged(object? sender, int? newPlayerCount) {
if (newPlayerCount == null) {
onlinePlayersDetected.TrySetException(new InvalidOperationException());
OnlinePlayerCountChanged -= OnOnlinePlayerCountChanged;
}
else if (newPlayerCount > 0) {
onlinePlayersDetected.TrySetResult();
OnlinePlayerCountChanged -= OnOnlinePlayerCountChanged;
}
}
}
await onlinePlayersDetected.Task;
}
private void OnOutput(object? sender, string? line) {
lock (this) {
if (!isDisposed) {
serverOutputEvent.Set();
}
}
}
protected override void Dispose() {
lock (this) {
isDisposed = true;
playerCounts = null;
}
process.RemoveOutputListener(OnOutput);
serverOutputEvent.Dispose();
}
}

123
Agent/Phantom.Agent.Services/Instances/State/InstanceRunningState.cs
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@@ -1,123 +0,0 @@
using Phantom.Agent.Minecraft.Instance;
using Phantom.Agent.Minecraft.Launcher;
using Phantom.Agent.Services.Backups;
using Phantom.Common.Data.Backups;
using Phantom.Common.Data.Instance;
using Phantom.Common.Data.Replies;
namespace Phantom.Agent.Services.Instances.State;
sealed class InstanceRunningState : IDisposable {
public InstanceTicketManager.Ticket Ticket { get; }
public InstanceProcess Process { get; }
internal bool IsStopping { get; set; }
private readonly InstanceContext context;
private readonly InstanceConfiguration configuration;
private readonly IServerLauncher launcher;
private readonly CancellationToken cancellationToken;
private readonly InstanceLogSender logSender;
private readonly InstancePlayerCountTracker playerCountTracker;
private readonly BackupScheduler backupScheduler;
private bool isDisposed;
public InstanceRunningState(InstanceContext context, InstanceConfiguration configuration, IServerLauncher launcher, InstanceTicketManager.Ticket ticket, InstanceProcess process, CancellationToken cancellationToken) {
this.context = context;
this.configuration = configuration;
this.launcher = launcher;
this.Ticket = ticket;
this.Process = process;
this.cancellationToken = cancellationToken;
this.logSender = new InstanceLogSender(context.Services.ControllerConnection, context.InstanceGuid, context.ShortName);
this.playerCountTracker = new InstancePlayerCountTracker(context, process, configuration.ServerPort);
this.backupScheduler = new BackupScheduler(context, playerCountTracker);
this.backupScheduler.BackupCompleted += OnScheduledBackupCompleted;
}
public void Initialize() {
Process.Ended += ProcessEnded;
if (Process.HasEnded) {
if (TryDispose()) {
context.Logger.Warning("Session ended immediately after it was started.");
context.Actor.Tell(new InstanceActor.HandleProcessEndedCommand(InstanceStatus.Failed(InstanceLaunchFailReason.UnknownError)));
}
}
else {
context.Logger.Information("Session started.");
Process.AddOutputListener(SessionOutput);
}
}
private void SessionOutput(object? sender, string line) {
context.Logger.Debug("[Server] {Line}", line);
logSender.Enqueue(line);
}
private void ProcessEnded(object? sender, EventArgs e) {
if (!TryDispose()) {
return;
}
if (cancellationToken.IsCancellationRequested) {
return;
}
if (IsStopping) {
context.Actor.Tell(new InstanceActor.HandleProcessEndedCommand(InstanceStatus.NotRunning));
}
else {
context.Logger.Information("Session ended unexpectedly, restarting...");
context.ReportEvent(InstanceEvent.Crashed);
context.Actor.Tell(new InstanceActor.LaunchInstanceCommand(configuration, launcher, Ticket, IsRestarting: true));
}
}
private void OnScheduledBackupCompleted(object? sender, BackupCreationResult e) {
context.ReportEvent(new InstanceBackupCompletedEvent(e.Kind, e.Warnings));
}
public async Task<SendCommandToInstanceResult> SendCommand(string command, CancellationToken cancellationToken) {
try {
context.Logger.Information("Sending command: {Command}", command);
await Process.SendCommand(command, cancellationToken);
return SendCommandToInstanceResult.Success;
} catch (OperationCanceledException) {
return SendCommandToInstanceResult.UnknownError;
} catch (Exception e) {
context.Logger.Warning(e, "Caught exception while sending command.");
return SendCommandToInstanceResult.UnknownError;
}
}
public void OnStopInitiated() {
backupScheduler.Stop();
playerCountTracker.Stop();
}
private bool TryDispose() {
lock (this) {
if (isDisposed) {
return false;
}
isDisposed = true;
}
OnStopInitiated();
logSender.Stop();
Process.Dispose();
return true;
}
public void Dispose() {
TryDispose();
}
}

99
Agent/Phantom.Agent.Services/Instances/State/InstanceStopProcedure.cs
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@@ -1,99 +0,0 @@
using System.Diagnostics;
using Phantom.Agent.Minecraft.Command;
using Phantom.Agent.Minecraft.Instance;
using Phantom.Common.Data.Instance;
using Phantom.Common.Data.Minecraft;
namespace Phantom.Agent.Services.Instances.State;
static class InstanceStopProcedure {
private static readonly ushort[] Stops = [60, 30, 10, 5, 4, 3, 2, 1, 0];
public static async Task<bool> Run(InstanceContext context, MinecraftStopStrategy stopStrategy, InstanceRunningState runningState, Action<IInstanceStatus> reportStatus, CancellationToken cancellationToken) {
var process = runningState.Process;
runningState.IsStopping = true;
var seconds = stopStrategy.Seconds;
if (seconds > 0) {
try {
await CountDownWithAnnouncements(context, process, seconds, cancellationToken);
} catch (OperationCanceledException) {
runningState.IsStopping = false;
return false;
}
}
try {
// Too late to cancel the stop procedure now.
runningState.OnStopInitiated();
if (!process.HasEnded) {
context.Logger.Information("Session stopping now.");
await DoStop(context, process);
}
} finally {
context.Logger.Information("Session stopped.");
reportStatus(InstanceStatus.NotRunning);
context.ReportEvent(InstanceEvent.Stopped);
}
return true;
}
private static async Task CountDownWithAnnouncements(InstanceContext context, InstanceProcess process, ushort seconds, CancellationToken cancellationToken) {
context.Logger.Information("Session stopping in {Seconds} seconds.", seconds);
foreach (var stop in Stops) {
// TODO change to event-based cancellation
if (process.HasEnded) {
return;
}
if (seconds > stop) {
await process.SendCommand(GetCountDownAnnouncementCommand(seconds), cancellationToken);
await Task.Delay(TimeSpan.FromSeconds(seconds - stop), cancellationToken);
seconds = stop;
}
}
}
private static string GetCountDownAnnouncementCommand(ushort seconds) {
return MinecraftCommand.Say("Server shutting down in " + seconds + (seconds == 1 ? " second." : " seconds."));
}
private static async Task DoStop(InstanceContext context, InstanceProcess process) {
context.Logger.Information("Sending stop command...");
await TrySendStopCommand(context, process);
context.Logger.Information("Waiting for session to end...");
await WaitForSessionToEnd(context, process);
}
private static async Task TrySendStopCommand(InstanceContext context, InstanceProcess process) {
using var timeout = new CancellationTokenSource(TimeSpan.FromSeconds(5));
try {
await process.SendCommand(MinecraftCommand.Stop, timeout.Token);
} catch (OperationCanceledException) {
// Ignore.
} catch (ObjectDisposedException e) when (e.ObjectName == typeof(Process).FullName && process.HasEnded) {
// Ignore.
} catch (IOException e) when (e.HResult == -2147024664 /* The pipe is being closed */) {
// Ignore.
} catch (Exception e) {
context.Logger.Warning(e, "Caught exception while sending stop command.");
}
}
private static async Task WaitForSessionToEnd(InstanceContext context, InstanceProcess process) {
try {
await process.WaitForExit(TimeSpan.FromSeconds(55));
} catch (TimeoutException) {
try {
context.Logger.Warning("Waiting timed out, killing session...");
process.Kill();
} catch (Exception e) {
context.Logger.Error(e, "Caught exception while killing session.");
}
}
}
}

7
Agent/Phantom.Agent.Services/Instances/States/IInstanceState.cs Normal file
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namespace Phantom.Agent.Services.Instances.States;
interface IInstanceState {
IInstanceState Launch(InstanceContext context);
IInstanceState Stop();
Task<bool> SendCommand(string command, CancellationToken cancellationToken);
}

104
Agent/Phantom.Agent.Services/Instances/States/InstanceLaunchingState.cs Normal file
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using Phantom.Agent.Minecraft.Instance;
using Phantom.Agent.Minecraft.Launcher;
using Phantom.Agent.Minecraft.Server;
using Phantom.Common.Data.Instance;
namespace Phantom.Agent.Services.Instances.States;
sealed class InstanceLaunchingState : IInstanceState, IDisposable {
private readonly InstanceContext context;
private readonly CancellationTokenSource cancellationTokenSource = new ();
private byte lastDownloadProgress = byte.MaxValue;
public InstanceLaunchingState(InstanceContext context) {
this.context = context;
this.context.Logger.Information("Session starting...");
this.context.ReportStatus(InstanceStatus.IsLaunching);
var launchTask = Task.Run(DoLaunch);
launchTask.ContinueWith(OnLaunchSuccess, CancellationToken.None, TaskContinuationOptions.OnlyOnRanToCompletion, TaskScheduler.Default);
launchTask.ContinueWith(OnLaunchFailure, CancellationToken.None, TaskContinuationOptions.NotOnRanToCompletion, TaskScheduler.Default);
}
private async Task<InstanceSession> DoLaunch() {
var cancellationToken = cancellationTokenSource.Token;
cancellationToken.ThrowIfCancellationRequested();
void OnDownloadProgress(object? sender, DownloadProgressEventArgs args) {
byte progress = (byte) Math.Min(args.DownloadedBytes * 100 / args.TotalBytes, 100);
if (lastDownloadProgress != progress) {
lastDownloadProgress = progress;
context.ReportStatus(new InstanceStatus.Downloading(progress));
}
}
var launchResult = await context.Launcher.Launch(context.LaunchServices, OnDownloadProgress, cancellationToken);
if (launchResult is LaunchResult.CouldNotDownloadMinecraftServer) {
throw new LaunchFailureException(InstanceLaunchFailReason.CouldNotDownloadMinecraftServer, "Session failed to launch, could not download Minecraft server.");
}
else if (launchResult is LaunchResult.InvalidJavaRuntime) {
throw new LaunchFailureException(InstanceLaunchFailReason.JavaRuntimeNotFound, "Session failed to launch, invalid Java runtime.");
}
if (launchResult is not LaunchResult.Success launchSuccess) {
throw new LaunchFailureException(InstanceLaunchFailReason.UnknownError, "Session failed to launch.");
}
context.ReportStatus(InstanceStatus.IsLaunching);
return launchSuccess.Session;
}
private void OnLaunchSuccess(Task<InstanceSession> task) {
context.TransitionState(() => {
if (cancellationTokenSource.IsCancellationRequested) {
context.PortManager.Release(context.Configuration);
context.ReportStatus(InstanceStatus.IsNotRunning);
return new InstanceNotRunningState();
}
else {
return new InstanceRunningState(context, task.Result);
}
});
}
private void OnLaunchFailure(Task task) {
if (task.Exception is { InnerException: LaunchFailureException e }) {
context.Logger.Error(e.LogMessage);
context.ReportStatus(new InstanceStatus.Failed(e.Reason));
}
else {
context.ReportStatus(new InstanceStatus.Failed(InstanceLaunchFailReason.UnknownError));
}
context.PortManager.Release(context.Configuration);
context.TransitionState(new InstanceNotRunningState());
}
private sealed class LaunchFailureException : Exception {
public InstanceLaunchFailReason Reason { get; }
public string LogMessage { get; }
public LaunchFailureException(InstanceLaunchFailReason reason, string logMessage) {
this.Reason = reason;
this.LogMessage = logMessage;
}
}
public IInstanceState Launch(InstanceContext context) {
return this;
}
public IInstanceState Stop() {
cancellationTokenSource.Cancel();
return this;
}
public Task<bool> SendCommand(string command, CancellationToken cancellationToken) {
return Task.FromResult(false);
}
public void Dispose() {
cancellationTokenSource.Dispose();
}
}

30
Agent/Phantom.Agent.Services/Instances/States/InstanceNotRunningState.cs Normal file
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using Phantom.Common.Data.Instance;
namespace Phantom.Agent.Services.Instances.States;
sealed class InstanceNotRunningState : IInstanceState {
public IInstanceState Launch(InstanceContext context) {
InstanceLaunchFailReason? failReason = context.PortManager.Reserve(context.Configuration) switch {
PortManager.Result.ServerPortNotAllowed => InstanceLaunchFailReason.ServerPortNotAllowed,
PortManager.Result.ServerPortAlreadyInUse => InstanceLaunchFailReason.ServerPortAlreadyInUse,
PortManager.Result.RconPortNotAllowed => InstanceLaunchFailReason.RconPortNotAllowed,
PortManager.Result.RconPortAlreadyInUse => InstanceLaunchFailReason.RconPortAlreadyInUse,
_ => null
};
if (failReason != null) {
context.ReportStatus(new InstanceStatus.Failed(failReason.Value));
return this;
}
return new InstanceLaunchingState(context);
}
public IInstanceState Stop() {
return this;
}
public Task<bool> SendCommand(string command, CancellationToken cancellationToken) {
return Task.FromResult(false);
}
}

96
Agent/Phantom.Agent.Services/Instances/States/InstanceRunningState.cs Normal file
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using Phantom.Agent.Minecraft.Instance;
using Phantom.Common.Data.Instance;
namespace Phantom.Agent.Services.Instances.States;
sealed class InstanceRunningState : IInstanceState {
private readonly InstanceContext context;
private readonly InstanceSession session;
private readonly InstanceLogSenderThread logSenderThread;
private readonly SessionObjects sessionObjects;
public InstanceRunningState(InstanceContext context, InstanceSession session) {
this.context = context;
this.session = session;
this.logSenderThread = new InstanceLogSenderThread(context.Configuration.InstanceGuid, context.ShortName);
this.sessionObjects = new SessionObjects(context, session, logSenderThread);
this.session.AddOutputListener(SessionOutput);
this.session.SessionEnded += SessionEnded;
if (session.HasEnded) {
if (sessionObjects.Dispose()) {
context.Logger.Warning("Session ended immediately after it was started.");
context.ReportStatus(new InstanceStatus.Failed(InstanceLaunchFailReason.UnknownError));
Task.Run(() => context.TransitionState(new InstanceNotRunningState()));
}
}
else {
context.ReportStatus(InstanceStatus.IsRunning);
context.Logger.Information("Session started.");
}
}
private void SessionOutput(object? sender, string e) {
context.Logger.Verbose("[Server] {Line}", e);
logSenderThread.Enqueue(e);
}
private void SessionEnded(object? sender, EventArgs e) {
if (sessionObjects.Dispose()) {
context.Logger.Information("Session ended.");
context.ReportStatus(InstanceStatus.IsNotRunning);
context.TransitionState(new InstanceNotRunningState());
}
}
public IInstanceState Launch(InstanceContext context) {
return this;
}
public IInstanceState Stop() {
session.SessionEnded -= SessionEnded;
return new InstanceStoppingState(context, session, sessionObjects);
}
public async Task<bool> SendCommand(string command, CancellationToken cancellationToken) {
try {
context.Logger.Information("Sending command: {Command}", command);
await session.SendCommand(command, cancellationToken);
return true;
} catch (OperationCanceledException) {
return false;
} catch (Exception e) {
context.Logger.Warning(e, "Caught exception while sending command.");
return false;
}
}
public sealed class SessionObjects {
private readonly InstanceContext context;
private readonly InstanceSession session;
private readonly InstanceLogSenderThread logSenderThread;
private bool isDisposed;
public SessionObjects(InstanceContext context, InstanceSession session, InstanceLogSenderThread logSenderThread) {
this.context = context;
this.session = session;
this.logSenderThread = logSenderThread;
}
public bool Dispose() {
lock (this) {
if (isDisposed) {
return false;
}
isDisposed = true;
}
logSenderThread.Cancel();
session.Dispose();
context.PortManager.Release(context.Configuration);
return true;
}
}
}

75
Agent/Phantom.Agent.Services/Instances/States/InstanceStoppingState.cs Normal file
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@@ -0,0 +1,75 @@
using Phantom.Agent.Minecraft.Instance;
using Phantom.Common.Data.Instance;
namespace Phantom.Agent.Services.Instances.States;
sealed class InstanceStoppingState : IInstanceState, IDisposable {
private readonly InstanceContext context;
private readonly InstanceSession session;
private readonly InstanceRunningState.SessionObjects sessionObjects;
public InstanceStoppingState(InstanceContext context, InstanceSession session, InstanceRunningState.SessionObjects sessionObjects) {
this.sessionObjects = sessionObjects;
this.session = session;
this.context = context;
this.context.Logger.Information("Session stopping.");
this.context.ReportStatus(InstanceStatus.IsStopping);
Task.Run(DoStop);
}
private async Task DoStop() {
try {
context.Logger.Information("Sending stop command...");
await DoSendStopCommand();
context.Logger.Information("Waiting for session to end...");
await DoWaitForSessionToEnd();
} finally {
context.Logger.Information("Session stopped.");
context.ReportStatus(InstanceStatus.IsNotRunning);
context.TransitionState(new InstanceNotRunningState());
}
}
private async Task DoSendStopCommand() {
using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(5));
try {
await session.SendCommand("stop", cts.Token);
} catch (OperationCanceledException) {
// ignore
} catch (Exception e) {
context.Logger.Warning(e, "Caught exception while sending stop command.");
}
}
private async Task DoWaitForSessionToEnd() {
using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(55));
try {
await session.WaitForExit(cts.Token);
} catch (OperationCanceledException) {
try {
context.Logger.Warning("Waiting timed out, killing session...");
session.Kill();
} catch (Exception e) {
context.Logger.Error(e, "Caught exception while killing session.");
}
}
}
public IInstanceState Launch(InstanceContext context) {
return this;
}
public IInstanceState Stop() {
return this; // TODO maybe provide a way to kill?
}
public Task<bool> SendCommand(string command, CancellationToken cancellationToken) {
return Task.FromResult(false);
}
public void Dispose() {
sessionObjects.Dispose();
}
}

4
Agent/Phantom.Agent.Services/Phantom.Agent.Services.csproj
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@@ -1,13 +1,15 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\..\Common\Phantom.Common.Messages.Agent\Phantom.Common.Messages.Agent.csproj" />
<ProjectReference Include="..\..\Common\Phantom.Common.Messages\Phantom.Common.Messages.csproj" />
<ProjectReference Include="..\Phantom.Agent.Minecraft\Phantom.Agent.Minecraft.csproj" />
<ProjectReference Include="..\Phantom.Agent.Rpc\Phantom.Agent.Rpc.csproj" />
</ItemGroup>
</Project>

19
Agent/Phantom.Agent.Services/Rpc/ControllerConnection.cs
View File

@@ -1,19 +0,0 @@
using Phantom.Common.Messages.Agent;
using Phantom.Utils.Actor;
using Phantom.Utils.Rpc.Message;
namespace Phantom.Agent.Services.Rpc;
public sealed class ControllerConnection(MessageSender<IMessageToController> sender) {
internal bool TrySend<TMessage>(TMessage message) where TMessage : IMessageToController {
return sender.TrySend(message);
}
internal ValueTask Send<TMessage>(TMessage message, CancellationToken cancellationToken) where TMessage : IMessageToController {
return sender.Send(message, cancellationToken);
}
internal Task<TReply> Send<TMessage, TReply>(TMessage message, TimeSpan waitForReplyTime, CancellationToken cancellationToken) where TMessage : IMessageToController, ICanReply<TReply> {
return sender.Send<TMessage, TReply>(message, waitForReplyTime, cancellationToken);
}
}

50
Agent/Phantom.Agent.Services/Rpc/ControllerHandshake.cs
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@@ -1,50 +0,0 @@
using System.Collections.Immutable;
using Phantom.Common.Messages.Agent.Handshake;
using Phantom.Common.Messages.Agent.ToAgent;
using Phantom.Utils.Logging;
using Phantom.Utils.Rpc.Message;
using Phantom.Utils.Rpc.Runtime;
using Phantom.Utils.Rpc.Runtime.Client;
using Serilog;
namespace Phantom.Agent.Services.Rpc;
public sealed class ControllerHandshake(AgentRegistration registration, AgentRegistrationHandler registrationHandler) : IRpcClientHandshake {
private const int MaxInstances = 100_000;
private const int MaxMessageBytes = 1024 * 1024 * 8;
private readonly ILogger logger = PhantomLogger.Create<ControllerHandshake>();
public async Task Perform(RpcStream stream, CancellationToken cancellationToken) {
logger.Information("Registering with the controller...");
ReadOnlyMemory<byte> serializedRegistration = MessageSerialization.Serialize(registration);
await stream.WriteSignedInt(serializedRegistration.Length, cancellationToken);
await stream.WriteBytes(serializedRegistration, cancellationToken);
await stream.Flush(cancellationToken);
if (await stream.ReadByte(cancellationToken) == 0) {
return;
}
uint configureInstanceMessageCount = await stream.ReadUnsignedInt(cancellationToken);
if (configureInstanceMessageCount > MaxInstances) {
throw new InvalidOperationException("Trying to configure too many instances (" + configureInstanceMessageCount + " > " + MaxInstances + ").");
}
var configureInstanceMessages = ImmutableArray.CreateBuilder<ConfigureInstanceMessage>();
for (int index = 0; index < configureInstanceMessageCount; index++) {
int serializedMessageLength = await stream.ReadSignedInt(cancellationToken);
if (serializedMessageLength is < 0 or > MaxMessageBytes) {
throw new InvalidOperationException("Message must be between 0 and " + MaxMessageBytes + " bytes.");
}
var serializedMessage = await stream.ReadBytes(serializedMessageLength, cancellationToken);
configureInstanceMessages.Add(MessageSerialization.Deserialize<ConfigureInstanceMessage>(serializedMessage));
}
registrationHandler.OnRegistrationComplete(configureInstanceMessages.ToImmutable());
logger.Information("Registration complete.");
}
}

43
Agent/Phantom.Agent.Services/Rpc/ControllerMessageHandlerActor.cs
View File

@@ -1,43 +0,0 @@
using Phantom.Agent.Services.Instances;
using Phantom.Common.Data;
using Phantom.Common.Data.Replies;
using Phantom.Common.Messages.Agent;
using Phantom.Common.Messages.Agent.ToAgent;
using Phantom.Utils.Actor;
namespace Phantom.Agent.Services.Rpc;
public sealed class ControllerMessageHandlerActor : ReceiveActor<IMessageToAgent> {
public readonly record struct Init(AgentServices Agent);
public static Props<IMessageToAgent> Factory(Init init) {
return Props<IMessageToAgent>.Create(() => new ControllerMessageHandlerActor(init), new ActorConfiguration { SupervisorStrategy = SupervisorStrategies.Resume });
}
private readonly AgentServices agent;
private ControllerMessageHandlerActor(Init init) {
this.agent = init.Agent;
ReceiveAndReplyLater<ConfigureInstanceMessage, Result<ConfigureInstanceResult, InstanceActionFailure>>(HandleConfigureInstance);
ReceiveAndReplyLater<LaunchInstanceMessage, Result<LaunchInstanceResult, InstanceActionFailure>>(HandleLaunchInstance);
ReceiveAndReplyLater<StopInstanceMessage, Result<StopInstanceResult, InstanceActionFailure>>(HandleStopInstance);
ReceiveAndReplyLater<SendCommandToInstanceMessage, Result<SendCommandToInstanceResult, InstanceActionFailure>>(HandleSendCommandToInstance);
}
private async Task<Result<ConfigureInstanceResult, InstanceActionFailure>> HandleConfigureInstance(ConfigureInstanceMessage message) {
return await agent.InstanceManager.Request(new InstanceManagerActor.ConfigureInstanceCommand(message.InstanceGuid, message.Configuration, message.LaunchProperties, message.LaunchNow, AlwaysReportStatus: false));
}
private async Task<Result<LaunchInstanceResult, InstanceActionFailure>> HandleLaunchInstance(LaunchInstanceMessage message) {
return await agent.InstanceManager.Request(new InstanceManagerActor.LaunchInstanceCommand(message.InstanceGuid));
}
private async Task<Result<StopInstanceResult, InstanceActionFailure>> HandleStopInstance(StopInstanceMessage message) {
return await agent.InstanceManager.Request(new InstanceManagerActor.StopInstanceCommand(message.InstanceGuid, message.StopStrategy));
}
private async Task<Result<SendCommandToInstanceResult, InstanceActionFailure>> HandleSendCommandToInstance(SendCommandToInstanceMessage message) {
return await agent.InstanceManager.Request(new InstanceManagerActor.SendCommandToInstanceCommand(message.InstanceGuid, message.Command));
}
}

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