Implement extensible manifest for updates in Foundation.

foundation-core/src/main/kotlin/gay/pizza/foundation/concrete/ExtensibleManifest.kt

@@ -0,0 +1,60 @@
+package gay.pizza.foundation.concrete
+
+import kotlinx.serialization.Serializable
+
+/**
+ * The extensible update manifest format.
+ */
+@Serializable
+data class ExtensibleManifest(
+  /**
+   * The items the manifest describes.
+   */
+  val items: List<ExtensibleManifestItem>
+)
+
+/**
+ * An item in the update manifest.
+ */
+@Serializable
+data class ExtensibleManifestItem(
+  /**
+   * The name of the item.
+   */
+  val name: String,
+  /**
+   * The type of item.
+   */
+  val type: String,
+  /**
+   * The version of the item.
+   */
+  val version: String,
+  /**
+   * The dependencies of the item.
+   */
+  val dependencies: List<String>,
+  /**
+   * The files that are required to install the item.
+   */
+  val files: List<ExtensibleManifestItemFile>
+)
+
+/**
+ * A file built from the item.
+ */
+@Serializable
+data class ExtensibleManifestItemFile(
+  /**
+   * The name of the file.
+   */
+  val name: String,
+  /**
+   * A type of file.
+   */
+  val type: String,
+  /**
+   * The relative path to download the file.
+   */
+  val path: String
+)

foundation-core/src/main/kotlin/gay/pizza/foundation/core/FoundationCorePlugin.kt

@@ -2,7 +2,6 @@ package gay.pizza.foundation.core
 
 import gay.pizza.foundation.core.abstraction.FoundationPlugin
 import gay.pizza.foundation.core.features.backup.BackupFeature
-import gay.pizza.foundation.core.features.dev.DevFeature
 import gay.pizza.foundation.core.features.gameplay.GameplayFeature
 import gay.pizza.foundation.core.features.persist.PersistenceFeature
 import gay.pizza.foundation.core.features.player.PlayerFeature
@@ -49,7 +48,6 @@ class FoundationCorePlugin : IFoundationCore, FoundationPlugin() {
     SchedulerFeature(),
     PersistenceFeature(),
     BackupFeature(),
-    DevFeature(),
     GameplayFeature(),
     PlayerFeature(),
     StatsFeature(),

foundation-core/src/main/kotlin/gay/pizza/foundation/core/features/dev/DevFeature.kt

@@ -1,16 +0,0 @@
-package gay.pizza.foundation.core.features.dev
-
-import gay.pizza.foundation.core.abstraction.Feature
-
-class DevFeature : Feature() {
-  private lateinit var devUpdateServer: DevUpdateServer
-
-  override fun enable() {
-    devUpdateServer = DevUpdateServer(plugin)
-    devUpdateServer.enable()
-  }
-
-  override fun disable() {
-    devUpdateServer.disable()
-  }
-}

foundation-core/src/main/kotlin/gay/pizza/foundation/core/features/dev/DevUpdateConfig.kt

@@ -1,10 +0,0 @@
-package gay.pizza.foundation.core.features.dev
-
-import kotlinx.serialization.Serializable
-
-@Serializable
-class DevUpdateConfig(
-  val port: Int = 8484,
-  val token: String,
-  val ipAllowList: List<String> = listOf("*")
-)

foundation-core/src/main/kotlin/gay/pizza/foundation/core/features/dev/DevUpdatePayload.kt

@@ -1,13 +0,0 @@
-package gay.pizza.foundation.core.features.dev
-
-import kotlinx.serialization.SerialName
-import kotlinx.serialization.Serializable
-import kotlinx.serialization.json.JsonElement
-
-@Serializable
-class DevUpdatePayload(
-  @SerialName("object_kind")
-  val objectKind: String,
-  @SerialName("object_attributes")
-  val objectAttributes: Map<String, JsonElement>
-)

foundation-core/src/main/kotlin/gay/pizza/foundation/core/features/dev/DevUpdateServer.kt

@@ -1,117 +0,0 @@
-package gay.pizza.foundation.core.features.dev
-
-import com.charleskorn.kaml.Yaml
-import com.sun.net.httpserver.HttpExchange
-import com.sun.net.httpserver.HttpServer
-import gay.pizza.foundation.shared.copyDefaultConfig
-import gay.pizza.foundation.core.FoundationCorePlugin
-import gay.pizza.foundation.core.features.update.UpdateService
-import kotlinx.serialization.json.Json
-import kotlinx.serialization.json.decodeFromStream
-import kotlinx.serialization.json.jsonPrimitive
-import java.net.InetSocketAddress
-import kotlin.io.path.inputStream
-
-class DevUpdateServer(val plugin: FoundationCorePlugin) {
-  private lateinit var config: DevUpdateConfig
-  private var server: HttpServer? = null
-
-  private val json = Json {
-    prettyPrint = true
-    prettyPrintIndent = "  "
-    ignoreUnknownKeys = true
-  }
-
-  fun enable() {
-    val configPath = copyDefaultConfig<FoundationCorePlugin>(
-      plugin.slF4JLogger,
-      plugin.pluginDataPath,
-      "devupdate.yaml"
-    )
-
-    config = Yaml.default.decodeFromStream(DevUpdateConfig.serializer(), configPath.inputStream())
-    start()
-  }
-
-  private fun start() {
-    if (config.token.isEmpty()) {
-      return
-    }
-
-    if (config.token.length < 8) {
-      plugin.slF4JLogger.warn("DevUpdateServer Token was too short (must be 8 or more characters)")
-      return
-    }
-
-    val server = HttpServer.create()
-    server.createContext("/").setHandler { exchange ->
-      handle(exchange)
-    }
-    server.bind(InetSocketAddress("0.0.0.0", config.port), 0)
-    server.start()
-    this.server = server
-    plugin.slF4JLogger.info("DevUpdateServer listening on port ${config.port}")
-  }
-
-  private fun handle(exchange: HttpExchange) {
-    val ip = exchange.remoteAddress.address.hostAddress
-    if (!config.ipAllowList.contains("*") && !config.ipAllowList.contains(ip)) {
-      plugin.slF4JLogger.warn("DevUpdateServer received request from IP $ip which is not allowed.")
-      exchange.close()
-      return
-    }
-
-    plugin.slF4JLogger.info("DevUpdateServer Request $ip ${exchange.requestMethod} ${exchange.requestURI.path}")
-    if (exchange.requestMethod != "POST") {
-      exchange.respond(405, "Method not allowed.")
-      return
-    }
-
-    if (exchange.requestURI.path != "/webhook/update") {
-      exchange.respond(404, "Not Found.")
-      return
-    }
-
-    if (exchange.requestURI.query != config.token) {
-      exchange.respond(401, "Unauthorized.")
-      return
-    }
-
-    val payload: DevUpdatePayload
-    try {
-      payload = json.decodeFromStream(exchange.requestBody)
-    } catch (e: Exception) {
-      plugin.slF4JLogger.error("Failed to decode request body.", e)
-      exchange.respond(400, "Bad Request")
-      return
-    }
-
-    if (payload.objectKind != "pipeline" ||
-      payload.objectAttributes["ref"]?.jsonPrimitive?.content != "main" ||
-      payload.objectAttributes["status"]?.jsonPrimitive?.content != "success"
-    ) {
-      exchange.respond(200, "Event was not relevant for update.")
-      return
-    }
-
-    exchange.respond(200, "Success.")
-    plugin.slF4JLogger.info("DevUpdate Started")
-    UpdateService.updatePlugins(plugin.server.consoleSender) {
-      plugin.server.scheduler.runTask(plugin) { ->
-        plugin.server.shutdown()
-      }
-    }
-  }
-
-  fun disable() {
-    server?.stop(1)
-  }
-
-  private fun HttpExchange.respond(code: Int, content: String) {
-    val encoded = content.encodeToByteArray()
-    sendResponseHeaders(code, encoded.size.toLong())
-    responseBody.write(encoded)
-    responseBody.close()
-    close()
-  }
-}

foundation-core/src/main/kotlin/gay/pizza/foundation/core/features/update/ModuleManifest.kt

@@ -1,9 +0,0 @@
-package gay.pizza.foundation.core.features.update
-
-import kotlinx.serialization.Serializable
-
-@Serializable
-data class ModuleManifest(
-  val version: String,
-  val artifacts: List<String>,
-)

foundation-core/src/main/kotlin/gay/pizza/foundation/core/features/update/UpdatePlan.kt

@@ -0,0 +1,8 @@
+package gay.pizza.foundation.core.features.update
+
+import gay.pizza.foundation.concrete.ExtensibleManifestItem
+import org.bukkit.plugin.Plugin
+
+class UpdatePlan(
+  val items: Map<ExtensibleManifestItem, Plugin?>
+)

foundation-core/src/main/kotlin/gay/pizza/foundation/core/features/update/UpdateResolver.kt

@@ -0,0 +1,47 @@
+package gay.pizza.foundation.core.features.update
+
+import gay.pizza.foundation.concrete.ExtensibleManifest
+import kotlinx.serialization.json.Json
+import org.bukkit.Server
+import java.net.URL
+
+class UpdateResolver {
+  fun fetchCurrentManifest(): ExtensibleManifest {
+    val jsonContentString = latestManifestUrl.openStream().readAllBytes().decodeToString()
+    return jsonRelaxed.decodeFromString(ExtensibleManifest.serializer(), jsonContentString)
+  }
+
+  fun resolve(manifest: ExtensibleManifest, server: Server): UpdatePlan {
+    val installedPlugins = server.pluginManager.plugins.associateBy {
+      val key = it.name.lowercase()
+      val nameOverride = pluginToManifestNameMappings[key]
+      nameOverride ?: key
+    }
+    val installSet = manifest.items
+      .filter { installedPlugins.containsKey(it.name) }
+      .associateWith { installedPlugins[it.name] }
+      .toMutableMap()
+
+    var lastCount = 0
+    while (lastCount < installSet.size) {
+      lastCount = installSet.size
+      val installSetNames = installSet.keys.map { it.name }
+      val totalDependencySet = installSet.keys.flatMap { it.dependencies }.toSet()
+      for (dependencyName in totalDependencySet.filter { !installSetNames.contains(it) }) {
+        val newDependency = installSet.keys.firstOrNull { it.name == dependencyName } ?:
+          throw RuntimeException("Unresolved Dependency: $dependencyName")
+        installSet[newDependency] = null
+      }
+    }
+    return UpdatePlan(installSet)
+  }
+
+  companion object {
+    internal val latestManifestUrl = URL("https://artifacts.gay.pizza/foundation/manifest.json")
+    private val jsonRelaxed = Json { ignoreUnknownKeys = true }
+
+    private val pluginToManifestNameMappings = mapOf(
+      "foundation" to "foundation-core"
+    )
+  }
+}

foundation-core/src/main/kotlin/gay/pizza/foundation/core/features/update/UpdateService.kt

@@ -4,7 +4,6 @@ import org.bukkit.command.CommandSender
 import kotlin.io.path.name
 import kotlin.io.path.toPath
 
-// TODO: Switch to a class and use dependency injection with koin.
 object UpdateService {
   fun updatePlugins(sender: CommandSender, onFinish: (() -> Unit)? = null) {
     val updateDir = sender.server.pluginsFolder.resolve("update")
@@ -16,29 +15,24 @@ object UpdateService {
     val updatePath = updateDir.toPath()
 
     Thread {
-      val modules = UpdateUtil.fetchManifest()
+      val resolver = UpdateResolver()
-      val plugins = sender.server.pluginManager.plugins.associateBy { it.name.lowercase() }
+      val manifest = resolver.fetchCurrentManifest()
-
+      val plan = resolver.resolve(manifest, sender.server)
       sender.sendMessage("Updates:")
-      modules.forEach { (name, manifest) ->
+      plan.items.forEach { (item, plugin) ->
-        // Foolish naming problem. Don't want to fix it right now.
+        val pluginJarFileItem = item.files.firstOrNull { it.type == "plugin-jar" }
-        val plugin = if (name == "foundation-core") {
+        if (pluginJarFileItem == null) {
-          plugins["foundation"] ?: plugins[name.lowercase()]
+          sender.sendMessage("WARNING: ${item.name} is required but plugin-jar file not found in manifest. Skipping.")
-        } else {
+          return@forEach
-          plugins[name.lowercase()]
         }
+        val maybeExistingPluginFileName = plugin?.javaClass?.protectionDomain?.codeSource?.location?.toURI()?.toPath()?.name
+        val fileName = maybeExistingPluginFileName ?: "${item.name}.jar"
+        val artifactPath = pluginJarFileItem.path
 
-        if (plugin == null) {
+        sender.sendMessage("${item.name}: Updating ${plugin?.description?.version ?: "[not-installed]"} to ${item.version}")
-          sender.sendMessage("Plugin in manifest, but not installed: $name (${manifest.version})")
+        UpdateUtil.downloadArtifact(artifactPath, updatePath.resolve(fileName))
-        } else {
-          val fileName = plugin.javaClass.protectionDomain.codeSource.location.toURI().toPath().name
-          val artifactPath = manifest.artifacts.getOrNull(0) ?: return@forEach
-
-          sender.sendMessage("${plugin.name}: Updating ${plugin.description.version} to ${manifest.version}")
-          UpdateUtil.downloadArtifact(artifactPath, updatePath.resolve(fileName))
-        }
       }
-      sender.sendMessage("Restart to take effect")
+      sender.sendMessage("Restart for updates to take effect.")
 
       if (onFinish != null) onFinish()
     }.start()

foundation-core/src/main/kotlin/gay/pizza/foundation/core/features/update/UpdateUtil.kt

@@ -1,8 +1,6 @@
 package gay.pizza.foundation.core.features.update
 
 import kotlinx.serialization.DeserializationStrategy
-import kotlinx.serialization.builtins.MapSerializer
-import kotlinx.serialization.builtins.serializer
 import kotlinx.serialization.json.Json
 import java.net.URI
 import java.net.http.HttpClient
@@ -13,16 +11,11 @@ import java.nio.file.Path
 object UpdateUtil {
   private val client = HttpClient.newBuilder().followRedirects(HttpClient.Redirect.NORMAL).build()
 
-  // TODO(liv): Add environment variable override. Document it.
+  fun getUrl(path: String): String =
-  private const val basePath =
+    UpdateResolver.latestManifestUrl
-    "https://artifacts.gay.pizza/foundation"
+      .toURI()
-  private const val manifestPath = "build/manifests/update.json"
+      .resolve(path)
-
+      .toString()
-  fun fetchManifest() = fetchFile(
-    getUrl(manifestPath), MapSerializer(String.serializer(), ModuleManifest.serializer()),
-  )
-
-  fun getUrl(path: String) = "$basePath/$path"
 
   private inline fun <reified T> fetchFile(url: String, strategy: DeserializationStrategy<T>): T {
     val request = HttpRequest
@@ -43,16 +36,20 @@ object UpdateUtil {
   }
 
   fun downloadArtifact(path: String, outPath: Path) {
+    val uri = URI.create(getUrl(path))
     val request = HttpRequest
       .newBuilder()
       .GET()
-      .uri(URI.create(getUrl(path)))
+      .uri(uri)
       .build()
 
     val response = client.send(
       request,
       HttpResponse.BodyHandlers.ofFile(outPath)
     )
+    if (response.statusCode() != 200) {
+      throw RuntimeException("Failed to download URL $uri (Status Code: ${response.statusCode()})")
+    }
     response.body()
   }
 }

foundation-core/src/main/resources/devupdate.yaml

@@ -1,12 +0,0 @@
-# Server port to listen on.
-port: 8484
-
-# An authentication token. Should be random and 8 or more characters.
-# If empty, the DevUpdate server is not enabled.
-token: ""
-
-# IP address allow list.
-# If * is specified, all addresses are allowed.
-# Specify IP addresses as a string that should be allowed to update the server.
-ipAllowList:
-  - "*"