Automatically generate Agent names if not configured

Agent/Phantom.Agent.Services/Rpc/MessageListener.cs

@@ -1,6 +1,7 @@
 using NetMQ.Sockets;
 using Phantom.Agent.Rpc;
 using Phantom.Common.Data.Replies;
+using Phantom.Common.Logging;
 using Phantom.Common.Messages;
 using Phantom.Common.Messages.ToAgent;
 using Phantom.Common.Messages.ToServer;
@@ -49,11 +50,6 @@ public sealed class MessageListener : IMessageToAgentListener {
 		return Task.CompletedTask;
 	}
 	
-	public Task HandleShutdownAgent(ShutdownAgentMessage message) {
-		shutdownTokenSource.Cancel();
-		return Task.CompletedTask;
-	}
-
 	public async Task HandleConfigureInstance(ConfigureInstanceMessage message) {
 		await socket.SendSimpleReply(message, await agent.InstanceSessionManager.Configure(message.Configuration));
 	}

Agent/Phantom.Agent/AgentNameGenerator.cs

@@ -0,0 +1,476 @@
+using Phantom.Utils.Cryptography;
+
+namespace Phantom.Agent;
+
+static class AgentNameGenerator {
+	private static readonly string[] Prefixes = {
+		"Abundant",
+		"Ancient",
+		"Broken",
+		"Crushed",
+		"Damaged",
+		"Dark",
+		"Divine",
+		"Enchanted",
+		"Flaming",
+		"Frozen",
+		"Gilded",
+		"Glowing",
+		"Immaculate",
+		"Infested",
+		"Invisible",
+		"Luxurious",
+		"Mossy",
+		"Mysterious",
+		"Opulent",
+		"Perplexing",
+		"Possessed",
+		"Pristine",
+		"Rotting",
+		"Sophisticated",
+		"Spectacular",
+		"Stunning",
+		"Tenacious",
+		"Twisted",
+		"Unique",
+		"Venerable",
+		"Withering"
+	};
+
+	private static readonly string[] Suffixes = {
+		"Acacia Button",
+		"Acacia Door",
+		"Acacia Fence",
+		"Acacia Leaves",
+		"Acacia Log",
+		"Acacia Planks",
+		"Acacia Sapling",
+		"Acacia Sign",
+		"Acacia Slab",
+		"Acacia Stairs",
+		"Acacia Trapdoor",
+		"Acacia Wood",
+		"Activator Rail",
+		"Allium",
+		"Ancient Debris",
+		"Andesite Slab",
+		"Andesite Stairs",
+		"Andesite Wall",
+		"Andesite",
+		"Anvil",
+		"Azalea Leaves",
+		"Azalea",
+		"Azure Bluet",
+		"Bamboo",
+		"Barrel",
+		"Basalt",
+		"Beacon",
+		"Bedrock",
+		"Bee Nest",
+		"Beehive",
+		"Beetroots",
+		"Bell",
+		"Birch Button",
+		"Birch Door",
+		"Birch Fence",
+		"Birch Leaves",
+		"Birch Log",
+		"Birch Planks",
+		"Birch Sapling",
+		"Birch Sign",
+		"Birch Slab",
+		"Birch Stairs",
+		"Birch Trapdoor",
+		"Birch Wood",
+		"Black Candle",
+		"Black Carpet",
+		"Black Concrete",
+		"Black Terracotta",
+		"Black Wool",
+		"Blackstone Slab",
+		"Blackstone Stairs",
+		"Blackstone Wall",
+		"Blackstone",
+		"Blast Furnace",
+		"Blue Candle",
+		"Blue Carpet",
+		"Blue Concrete",
+		"Blue Ice",
+		"Blue Orchid",
+		"Blue Terracotta",
+		"Blue Wool",
+		"Bone Block",
+		"Bookshelf",
+		"Brain Coral",
+		"Brewing Stand",
+		"Brick Slab",
+		"Brick Stairs",
+		"Brick Wall",
+		"Bricks",
+		"Brown Candle",
+		"Brown Carpet",
+		"Brown Concrete",
+		"Brown Mushroom",
+		"Brown Terracotta",
+		"Brown Wool",
+		"Bubble Column",
+		"Bubble Coral",
+		"Cactus",
+		"Cake",
+		"Calcite",
+		"Campfire",
+		"Candle",
+		"Carrots",
+		"Cartography Table",
+		"Carved Pumpkin",
+		"Cauldron",
+		"Cave Vines",
+		"Chain",
+		"Chest",
+		"Chorus Flower",
+		"Chorus Plant",
+		"Clay",
+		"Coal Ore",
+		"Coarse Dirt",
+		"Cobbled Deepslate",
+		"Cobblestone Slab",
+		"Cobblestone Stairs",
+		"Cobblestone Wall",
+		"Cobblestone",
+		"Cobweb",
+		"Cocoa",
+		"Composter",
+		"Conduit",
+		"Copper Ore",
+		"Cornflower",
+		"Crafting Table",
+		"Creeper Head",
+		"Crimson Button",
+		"Crimson Door",
+		"Crimson Fence",
+		"Crimson Fungus",
+		"Crimson Hyphae",
+		"Crimson Nylium",
+		"Crimson Planks",
+		"Crimson Roots",
+		"Crimson Sign",
+		"Crimson Slab",
+		"Crimson Stairs",
+		"Crimson Stem",
+		"Crimson Trapdoor",
+		"Crying Obsidian",
+		"Cyan Candle",
+		"Cyan Carpet",
+		"Cyan Concrete",
+		"Cyan Terracotta",
+		"Cyan Wool",
+		"Dandelion",
+		"Dead Bush",
+		"Deepslate Bricks",
+		"Deepslate Tiles",
+		"Deepslate",
+		"Detector Rail",
+		"Diamond Ore",
+		"Diorite Slab",
+		"Diorite Stairs",
+		"Diorite Wall",
+		"Diorite",
+		"Dirt",
+		"Dispenser",
+		"Dragon Egg",
+		"Dragon Head",
+		"Dripstone Block",
+		"Dropper",
+		"Emerald Ore",
+		"Enchanting Table",
+		"End Gateway",
+		"End Portal",
+		"End Rod",
+		"End Stone",
+		"Ender Chest",
+		"Farmland",
+		"Fern",
+		"Fire Coral",
+		"Fletching Table",
+		"Flower Pot",
+		"Flowering Azalea",
+		"Frosted Ice",
+		"Furnace",
+		"Glass Pane",
+		"Glass",
+		"Glowstone",
+		"Gold Ore",
+		"Granite Slab",
+		"Granite Stairs",
+		"Granite Wall",
+		"Granite",
+		"Grass Block",
+		"Grass",
+		"Gravel",
+		"Gray Candle",
+		"Gray Carpet",
+		"Gray Concrete",
+		"Gray Terracotta",
+		"Gray Wool",
+		"Green Candle",
+		"Green Carpet",
+		"Green Concrete",
+		"Green Terracotta",
+		"Green Wool",
+		"Grindstone",
+		"Hay Bale",
+		"Honey Block",
+		"Hopper",
+		"Horn Coral",
+		"Ice",
+		"Iron Bars",
+		"Iron Door",
+		"Iron Ore",
+		"Iron Trapdoor",
+		"Jack o'Lantern",
+		"Jigsaw Block",
+		"Jukebox",
+		"Jungle Button",
+		"Jungle Door",
+		"Jungle Fence",
+		"Jungle Leaves",
+		"Jungle Log",
+		"Jungle Planks",
+		"Jungle Sapling",
+		"Jungle Sign",
+		"Jungle Slab",
+		"Jungle Stairs",
+		"Jungle Trapdoor",
+		"Jungle Wood",
+		"Kelp Plant",
+		"Kelp",
+		"Ladder",
+		"Lantern",
+		"Large Fern",
+		"Lava",
+		"Lectern",
+		"Lever",
+		"Lightning Rod",
+		"Lilac",
+		"Lily Pad",
+		"Lime Candle",
+		"Lime Carpet",
+		"Lime Concrete",
+		"Lime Terracotta",
+		"Lime Wool",
+		"Lodestone",
+		"Loom",
+		"Magenta Candle",
+		"Magenta Carpet",
+		"Magenta Concrete",
+		"Magenta Terracotta",
+		"Magenta Wool",
+		"Magma Block",
+		"Mangrove Button",
+		"Mangrove Door",
+		"Mangrove Fence",
+		"Mangrove Leaves",
+		"Mangrove Log",
+		"Mangrove Planks",
+		"Mangrove Propagule",
+		"Mangrove Roots",
+		"Mangrove Sign",
+		"Mangrove Slab",
+		"Mangrove Stairs",
+		"Mangrove Trapdoor",
+		"Mangrove Wood",
+		"Melon Stem",
+		"Melon",
+		"Moss Block",
+		"Moss Carpet",
+		"Mossy Cobblestone",
+		"Mud Bricks",
+		"Mud",
+		"Mushroom Stem",
+		"Mycelium",
+		"Nether Bricks",
+		"Nether Portal",
+		"Nether Sprouts",
+		"Nether Wart",
+		"Netherrack",
+		"Note Block",
+		"Oak Button",
+		"Oak Door",
+		"Oak Fence",
+		"Oak Leaves",
+		"Oak Log",
+		"Oak Planks",
+		"Oak Sapling",
+		"Oak Sign",
+		"Oak Slab",
+		"Oak Stairs",
+		"Oak Trapdoor",
+		"Oak Wood",
+		"Observer",
+		"Obsidian",
+		"Ominous Banner",
+		"Orange Candle",
+		"Orange Carpet",
+		"Orange Concrete",
+		"Orange Terracotta",
+		"Orange Tulip",
+		"Orange Wool",
+		"Oxeye Daisy",
+		"Oxidized Copper",
+		"Packed Ice",
+		"Packed Mud",
+		"Peony",
+		"Pink Candle",
+		"Pink Carpet",
+		"Pink Concrete",
+		"Pink Terracotta",
+		"Pink Tulip",
+		"Pink Wool",
+		"Piston",
+		"Podzol",
+		"Pointed Dripstone",
+		"Polished Andesite",
+		"Polished Basalt",
+		"Polished Blackstone",
+		"Polished Deepslate",
+		"Polished Diorite",
+		"Polished Granite",
+		"Poppy",
+		"Potatoes",
+		"Powder Snow",
+		"Powered Rail",
+		"Prismarine Bricks",
+		"Prismarine Slab",
+		"Prismarine Stairs",
+		"Prismarine Wall",
+		"Prismarine",
+		"Pumpkin Stem",
+		"Pumpkin",
+		"Purple Candle",
+		"Purple Carpet",
+		"Purple Concrete",
+		"Purple Terracotta",
+		"Purple Wool",
+		"Purpur Block",
+		"Purpur Pillar",
+		"Purpur Slab",
+		"Purpur Stairs",
+		"Quartz Bricks",
+		"Quartz Pillar",
+		"Quartz Slab",
+		"Quartz Stairs",
+		"Rail",
+		"Red Candle",
+		"Red Carpet",
+		"Red Concrete",
+		"Red Mushroom",
+		"Red Sand",
+		"Red Sandstone",
+		"Red Terracotta",
+		"Red Tulip",
+		"Red Wool",
+		"Redstone Lamp",
+		"Redstone Ore",
+		"Redstone Torch",
+		"Redstone Wire",
+		"Reinforced Deepslate",
+		"Rooted Dirt",
+		"Rose Bush",
+		"Sand",
+		"Sandstone Slab",
+		"Sandstone Stairs",
+		"Sandstone Wall",
+		"Sandstone",
+		"Scaffolding",
+		"Sea Lantern",
+		"Sea Pickle",
+		"Seagrass",
+		"Shroomlight",
+		"Shulker Box",
+		"Skeleton Skull",
+		"Slime Block",
+		"Smithing Table",
+		"Smoker",
+		"Smooth Basalt",
+		"Smooth Sandstone",
+		"Smooth Stone",
+		"Snow Block",
+		"Snow",
+		"Soul Lantern",
+		"Soul Sand",
+		"Soul Torch",
+		"Sponge",
+		"Spore Blossom",
+		"Spruce Button",
+		"Spruce Door",
+		"Spruce Fence",
+		"Spruce Leaves",
+		"Spruce Log",
+		"Spruce Planks",
+		"Spruce Sapling",
+		"Spruce Sign",
+		"Spruce Slab",
+		"Spruce Stairs",
+		"Spruce Trapdoor",
+		"Spruce Wood",
+		"Sticky Piston",
+		"Stone Bricks",
+		"Stone Button",
+		"Stone Slab",
+		"Stone Stairs",
+		"Stone",
+		"Stonecutter",
+		"Sugar Cane",
+		"Sunflower",
+		"TNT",
+		"Target",
+		"Terracotta",
+		"Tinted Glass",
+		"Torch",
+		"Trapped Chest",
+		"Tripwire Hook",
+		"Tripwire",
+		"Tube Coral",
+		"Tuff",
+		"Turtle Egg",
+		"Twisting Vines",
+		"Verdant Froglight",
+		"Vines",
+		"Warped Button",
+		"Warped Door",
+		"Warped Fence",
+		"Warped Fungus",
+		"Warped Hyphae",
+		"Warped Nylium",
+		"Warped Planks",
+		"Warped Roots",
+		"Warped Sign",
+		"Warped Slab",
+		"Warped Stairs",
+		"Warped Stem",
+		"Warped Trapdoor",
+		"Water",
+		"Weeping Vines",
+		"Wheat Crops",
+		"White Candle",
+		"White Carpet",
+		"White Concrete",
+		"White Terracotta",
+		"White Tulip",
+		"White Wool",
+		"Wither Rose",
+		"Yellow Candle",
+		"Yellow Carpet",
+		"Yellow Concrete",
+		"Yellow Terracotta",
+		"Yellow Wool",
+		"Zombie Head"
+	};
+
+	public static string GenerateFrom(Guid guid) {
+		var rand = new Random(StableHashCode.ForString(guid.ToString()));
+		string prefix = Prefixes[rand.Next(Prefixes.Length)];
+		string suffix = Suffixes[rand.Next(Suffixes.Length)];
+		return string.Concat(prefix, " ", suffix);
+	}
+}

Agent/Phantom.Agent/Program.cs

@@ -18,7 +18,7 @@ PosixSignals.RegisterCancellation(cancellationTokenSource, static () => {
 try {
 	PhantomLogger.Root.InformationHeading("Initializing Phantom Panel agent...");
 
-	var (serverHost, serverPort, javaSearchPath, authToken, authTokenFilePath, agentName, maxInstances, maxMemory, allowedServerPorts, allowedRconPorts) = Variables.LoadOrExit();
+	var (serverHost, serverPort, javaSearchPath, authToken, authTokenFilePath, agentNameOrEmpty, maxInstances, maxMemory, allowedServerPorts, allowedRconPorts) = Variables.LoadOrExit();
 	
 	AgentAuthToken agentAuthToken;
 	try {
@@ -46,6 +46,7 @@ try {
 		return;
 	}
 
+	var agentName = string.IsNullOrEmpty(agentNameOrEmpty) ? AgentNameGenerator.GenerateFrom(agentGuid.Value) : agentNameOrEmpty;
 	var agentInfo = new AgentInfo(agentGuid.Value, agentName, AgentVersion, maxInstances, maxMemory, allowedServerPorts, allowedRconPorts);
 	var agentServices = new AgentServices(agentInfo, folders);
 

Agent/Phantom.Agent/Variables.cs

@@ -11,7 +11,7 @@ sealed record Variables(
 	string JavaSearchPath,
 	string? AuthToken,
 	string? AuthTokenFilePath,
-	string AgentName,
+	string AgentNameOrEmpty,
 	ushort MaxInstances,
 	RamAllocationUnits MaxMemory,
 	AllowedPorts AllowedServerPorts,
@@ -27,7 +27,7 @@ sealed record Variables(
 			javaSearchPath,
 			authToken,
 			authTokenFilePath,
-			EnvironmentVariables.GetString("AGENT_NAME").OrThrow,
+			EnvironmentVariables.GetString("AGENT_NAME").OrDefault(string.Empty),
 			(ushort) EnvironmentVariables.GetInteger("MAX_INSTANCES", min: 1, max: 10000).OrThrow,
 			EnvironmentVariables.GetString("MAX_MEMORY").MapParse(RamAllocationUnits.FromString).OrThrow,
 			EnvironmentVariables.GetString("ALLOWED_SERVER_PORTS").MapParse(AllowedPorts.FromString).OrThrow,

Common/Phantom.Common.Messages/IMessageToAgentListener.cs

@@ -9,5 +9,4 @@ public interface IMessageToAgentListener {
 	Task HandleLaunchInstance(LaunchInstanceMessage message);
 	Task HandleStopInstance(StopInstanceMessage message);
 	Task HandleSendCommandToInstance(SendCommandToInstanceMessage message);
-	Task HandleShutdownAgent(ShutdownAgentMessage message);
 }

Common/Phantom.Common.Messages/MessageRegistries.cs

@@ -16,7 +16,6 @@ public static class MessageRegistries {
 		ToAgent.Add<LaunchInstanceMessage>(3);
 		ToAgent.Add<StopInstanceMessage>(4);
 		ToAgent.Add<SendCommandToInstanceMessage>(5);
-		ToAgent.Add<ShutdownAgentMessage>(6);
 		
 		ToServer.Add<RegisterAgentMessage>(0);
 		ToServer.Add<UnregisterAgentMessage>(1);

Common/Phantom.Common.Messages/ToAgent/ShutdownAgentMessage.cs

@@ -1,10 +0,0 @@
-using MessagePack;
-
-namespace Phantom.Common.Messages.ToAgent; 
-
-[MessagePackObject]
-public sealed record ShutdownAgentMessage : IMessageToAgent {
-	public Task Accept(IMessageToAgentListener listener) {
-		return listener.HandleShutdownAgent(this);
-	}
-}

Server/Phantom.Server.Services/Agents/AgentManager.cs

@@ -92,7 +92,7 @@ public sealed class AgentManager {
 		agents.Update(agentGuid, static agent => agent with { LastPing = DateTimeOffset.Now });
 	}
 
-	public async Task<bool> SendMessage<TMessage>(Guid guid, TMessage message) where TMessage : IMessageToAgent {
+	private async Task<bool> SendMessage<TMessage>(Guid guid, TMessage message) where TMessage : IMessageToAgent {
 		var connection = agents.GetConnection(guid);
 		if (connection != null) {
 			await connection.SendMessage(message);

Server/Phantom.Server.Web/Pages/Agents.razor

@@ -1,7 +1,6 @@
 @page "/agents"
 @using System.Collections.Immutable
 @using Phantom.Common.Data.Agent
-@using Phantom.Common.Messages.ToAgent
 @using Phantom.Server.Services.Agents
 @using Phantom.Utils.Collections
 @implements IDisposable
@@ -21,13 +20,11 @@
       <th style="width: 350px;">Identifier</th>
       <th style="width: 150px;" class="text-center">Status</th>
       <th style="width: 250px;" class="text-right">Last Ping</th>
-      <th style="width: 200px;">Actions</th>
     </tr>
   </thead>
   @if (!agentTable.IsEmpty) {
     <tbody>
-      @foreach (var row in agentTable) {
-        var agent = row.Agent;
+      @foreach (var agent in agentTable) {
         var stats = agentStats.TryGetValue(agent.Guid, out var s) ? s : null;
         var usedInstances = stats?.UsedInstances;
         var usedMemory = stats?.UsedMemory.InMegabytes;
@@ -51,9 +48,6 @@
           @if (agent.IsOnline) {
             <td class="text-center text-success">Online</td>
             <td class="text-right"></td>
-            <td>
-              <button type="button" class="btn btn-danger btn-sm" @onclick="() => ShutdownAgent(agent.Guid)" disabled="@row.IsShutdownButtonDisabled">Shutdown</button>
-            </td>
           }
           else {
             <td class="text-center text-danger">Offline</td>
@@ -65,7 +59,6 @@
             else {
               <td class="text-right">-</td>
             }
-            <td>-</td>
           }
         </tr>
       }
@@ -73,7 +66,7 @@
   }
   <tfoot>
     <tr>
-      <td colspan="8">
+      <td colspan="7">
         @if (agentTable.IsEmpty) {
           <text>No agents registered.</text>
         }
@@ -85,15 +78,13 @@
 
 @code {
 
-  private readonly Table<AgentRow, Guid> agentTable = new();
+  private readonly Table<Agent, Guid> agentTable = new();
   private ImmutableDictionary<Guid, AgentStats> agentStats = ImmutableDictionary<Guid, AgentStats>.Empty;
 
-  private readonly record struct AgentRow(Agent Agent, bool IsShutdownButtonDisabled = false);
-
   protected override void OnInitialized() {
     AgentManager.AgentsChanged.Subscribe(this, agents => {
       var sortedAgents = agents.Sort(static (a1, a2) => a1.Name.CompareTo(a2.Name));
-      agentTable.UpdateFrom(sortedAgents, static agent => agent.Guid, static agent => new AgentRow(agent), static (agent, row) => row with { Agent = agent });
+      agentTable.UpdateFrom(sortedAgents, static agent => agent.Guid, static agent => agent, static (agent, _) => agent);
       InvokeAsync(StateHasChanged);
     });
 
@@ -103,12 +94,6 @@
     });
   }
 
-  private async Task ShutdownAgent(Guid guid) {
-    if (agentTable.TryUpdateRow(guid, static row => row with { IsShutdownButtonDisabled = true })) {
-      await AgentManager.SendMessage(guid, new ShutdownAgentMessage());
-    }
-  }
-
   void IDisposable.Dispose() {
     AgentManager.AgentsChanged.Unsubscribe(this);
     AgentStatsManager.AgentStatsChanged.Unsubscribe(this);