Add ursa client

src/main/kotlin/moe/nea/firmament/apis/UrsaManager.kt

@@ -0,0 +1,73 @@
+/*
+ * SPDX-FileCopyrightText: 2023 Linnea Gräf <nea@nea.moe>
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package moe.nea.firmament.apis
+
+import io.ktor.client.request.*
+import io.ktor.client.statement.*
+import io.ktor.http.*
+import java.time.Duration
+import java.time.Instant
+import java.util.*
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.withContext
+import net.minecraft.client.MinecraftClient
+import moe.nea.firmament.Firmament
+
+object UrsaManager {
+    private data class Token(
+        val validUntil: Instant,
+        val token: String,
+        val obtainedFrom: String,
+    ) {
+        fun isValid(host: String) = Instant.now().plusSeconds(60) < validUntil && obtainedFrom == host
+    }
+
+    private var currentToken: Token? = null
+    private val lock = Mutex()
+    private fun getToken(host: String) = currentToken?.takeIf { it.isValid(host) }
+
+    suspend fun request(path: List<String>): HttpResponse {
+        var didLock = false
+        try {
+            val host = "ursa.notenoughupdates.org"
+            var token = getToken(host)
+            if (token == null) {
+                lock.lock()
+                didLock = true
+                token = getToken(host)
+            }
+            val response = Firmament.httpClient.get {
+                url {
+                    this.host = host
+                    appendPathSegments(path, encodeSlash = true)
+                }
+                if (token == null) {
+                    withContext(Dispatchers.IO) {
+                        val mc = MinecraftClient.getInstance()
+                        val serverId = UUID.randomUUID().toString()
+                        mc.sessionService.joinServer(mc.session.profile, mc.session.accessToken, serverId)
+                        header("x-ursa-username", mc.session.profile.name)
+                        header("x-ursa-serverid", serverId)
+                    }
+                } else {
+                    header("x-ursa-token", token.token)
+                }
+            }
+            val savedToken = response.headers["x-ursa-token"]
+            if (savedToken != null) {
+                val validUntil = response.headers["x-ursa-expires"]?.toLongOrNull()?.let { Instant.ofEpochMilli(it) }
+                    ?: (Instant.now() + Duration.ofMinutes(55))
+                currentToken = Token(validUntil, savedToken, host)
+            }
+            return response
+        } finally {
+            if (didLock)
+                lock.unlock()
+        }
+    }
+}

src/main/kotlin/moe/nea/firmament/commands/dsl.kt

@@ -16,6 +16,9 @@ import java.lang.reflect.ParameterizedType
 import java.lang.reflect.Type
 import java.lang.reflect.TypeVariable
 import net.fabricmc.fabric.api.client.command.v2.FabricClientCommandSource
+import kotlinx.coroutines.launch
+import moe.nea.firmament.Firmament
+import moe.nea.firmament.util.MinecraftDispatcher
 import moe.nea.firmament.util.iterate
 
 
@@ -105,9 +108,11 @@ fun <T : ArgumentBuilder<DefaultSource, T>> T.thenLiteral(
 fun <T : ArgumentBuilder<DefaultSource, T>> T.then(node: ArgumentBuilder<DefaultSource, *>, block: T.() -> Unit): T =
     then(node).also(block)
 
-fun <T : ArgumentBuilder<DefaultSource, T>> T.thenExecute(block: CommandContext<DefaultSource>.() -> Unit): T =
+fun <T : ArgumentBuilder<DefaultSource, T>> T.thenExecute(block: suspend CommandContext<DefaultSource>.() -> Unit): T =
     executes {
-        block(it)
+        Firmament.coroutineScope.launch(MinecraftDispatcher) {
+            block(it)
+        }
         1
     }
 

src/main/kotlin/moe/nea/firmament/commands/rome.kt

@@ -8,8 +8,10 @@ package moe.nea.firmament.commands
 
 import com.mojang.brigadier.CommandDispatcher
 import com.mojang.brigadier.arguments.StringArgumentType.string
+import io.ktor.client.statement.*
 import net.fabricmc.fabric.api.client.command.v2.FabricClientCommandSource
 import net.minecraft.text.Text
+import moe.nea.firmament.apis.UrsaManager
 import moe.nea.firmament.features.inventory.storageoverlay.StorageOverlayScreen
 import moe.nea.firmament.features.world.FairySouls
 import moe.nea.firmament.gui.config.AllConfigsGui
@@ -135,6 +137,15 @@ fun firmamentCommand() = literal("firmament") {
                 }
             }
         }
+        thenLiteral("callUrsa") {
+            thenArgument("path", string()) { path ->
+                thenExecute {
+                    source.sendFeedback(Text.translatable("firmament.ursa.debugrequest.start"))
+                    val text = UrsaManager.request(this[path].split("/")).bodyAsText()
+                    source.sendFeedback(Text.translatable("firmament.ursa.debugrequest.result", text))
+                }
+            }
+        }
     }
 }
 

src/main/kotlin/moe/nea/firmament/util/MinecraftDispatcher.kt

@@ -6,23 +6,7 @@
 
 package moe.nea.firmament.util
 
-import kotlinx.coroutines.CoroutineDispatcher
-import kotlinx.coroutines.ExperimentalCoroutinesApi
-import kotlinx.coroutines.Runnable
-import kotlin.coroutines.CoroutineContext
+import kotlinx.coroutines.asCoroutineDispatcher
 import net.minecraft.client.MinecraftClient
 
-object MinecraftDispatcher : CoroutineDispatcher() {
-    @ExperimentalCoroutinesApi
-    override fun limitedParallelism(parallelism: Int): CoroutineDispatcher {
-        throw UnsupportedOperationException("limitedParallelism is not supported for MinecraftDispatcher")
-    }
-
-    override fun isDispatchNeeded(context: CoroutineContext): Boolean =
-        !MinecraftClient.getInstance().isOnThread
-
-
-    override fun dispatch(context: CoroutineContext, block: Runnable) {
-        MinecraftClient.getInstance().execute(block)
-    }
-}
+val MinecraftDispatcher by lazy { MinecraftClient.getInstance().asCoroutineDispatcher() }

src/main/resources/assets/firmament/lang/en_us.json

@@ -28,6 +28,8 @@
     "firmament.config.repo.branch": "Repo Branch",
     "firmament.config.repo.branch.hint": "dangerous",
     "firmament.config.repo.reset": "Reset",
+    "firmament.ursa.debugrequest.start": "Ursa request launched",
+    "firmament.ursa.debugrequest.result": "Ursa request succeeded: %s",
     "firmament.sbinfo.nolocraw": "No locraw data available",
     "firmament.sbinfo.profile": "Current profile cutename: %s",
     "firmament.sbinfo.server": "Locraw Server: %s",