✨ [Android] 补充断点下载功能

Author: jackie-yellow

next/kmp/browser/src/androidMain/kotlin/org/dweb_browser/browser/jmm/JmmController.kt

@@ -80,13 +80,13 @@ class JmmController(
     )
   }
 
-  suspend fun updateDownloadState(downloadController: JmmDownloadController) {
+  suspend fun updateDownloadState(downloadController: JmmDownloadController, mmid: MMID) :Boolean {
     val url = when (downloadController) {
-      JmmDownloadController.PAUSE -> "file://download.browser.dweb/pause"
-      JmmDownloadController.CANCEL -> "file://download.browser.dweb/cancel"
-      JmmDownloadController.RESUME -> "file://download.browser.dweb/resume"
+      JmmDownloadController.PAUSE -> "file://download.browser.dweb/pause?mmid=$mmid"
+      JmmDownloadController.CANCEL -> "file://download.browser.dweb/cancel?mmid=$mmid"
+      JmmDownloadController.RESUME -> "file://download.browser.dweb/resume?mmid=$mmid"
     }
-    jmmNMM.nativeFetch(PureRequest(href = url, method = IpcMethod.GET))
+    return jmmNMM.nativeFetch(PureRequest(href = url, method = IpcMethod.GET)).boolean()
   }
 
   suspend fun closeSelf() {

next/kmp/browser/src/androidMain/kotlin/org/dweb_browser/browser/jmm/ui/JmmManagerViewHelper.kt

@@ -97,7 +97,7 @@ class JmmManagerViewHelper(
 //    }
   }
 
-  private fun initDownLoadStatusListener() {
+  private suspend fun initDownLoadStatusListener() {
     jmmController.onDownload { downloadInfo ->
       if (downloadInfo.id != uiState.jmmAppInstallManifest.id) return@onDownload
       if (downloadInfo.downloadStatus == JmmDownloadStatus.IDLE) return@onDownload
@@ -112,10 +112,9 @@ class JmmManagerViewHelper(
           uiState.downloadStatus.value = downloadInfo.downloadStatus
         }
       }
-      if (downloadInfo.downloadStatus == JmmDownloadStatus.INSTALLED) { // 移除监听列表
-        // downLoadObserver?.close()
-        // TODO 移除监听
-      }
+      /*if (downloadInfo.downloadStatus == JmmDownloadStatus.INSTALLED) { // 移除监听列表
+
+      }*/
     }
   }
 
@@ -131,11 +130,21 @@ class JmmManagerViewHelper(
           }
 
           JmmDownloadStatus.DownLoading -> {
-            jmmController.updateDownloadState(JmmDownloadController.PAUSE)
+            val success = jmmController.updateDownloadState(
+              JmmDownloadController.PAUSE, uiState.jmmAppInstallManifest.id
+            )
+            if (success) {
+              uiState.downloadStatus.value = JmmDownloadStatus.PAUSE
+            }
           }
 
           JmmDownloadStatus.PAUSE -> {
-            jmmController.updateDownloadState(JmmDownloadController.RESUME)
+            val success =jmmController.updateDownloadState(
+              JmmDownloadController.RESUME, uiState.jmmAppInstallManifest.id
+            )
+            if (success) {
+              uiState.downloadStatus.value = JmmDownloadStatus.DownLoading
+            }
           }
 
           /*DownloadStatus.DownLoading, DownloadStatus.PAUSE -> {

next/kmp/microService/src/androidMain/kotlin/org/dweb_browser/microservice/sys/download/DownloadNMM.kt

@@ -55,19 +55,22 @@ class DownloadNMM :
         downloadModel.exists(ipc.remote.mmid)
       },
       "/pause" bind HttpMethod.Get to defineBooleanResponse {
-        debugDownload("pause", ipc.remote.mmid)
-        downloadModel.updateDownloadState(ipc.remote.mmid, JmmDownloadController.PAUSE)
+        val mmid = request.queryOrNull("mmid") ?: ipc.remote.mmid
+        debugDownload("pause", "ipc->${ipc.remote.mmid}, mmid->$mmid")
+        downloadModel.updateDownloadState(mmid, JmmDownloadController.PAUSE)
         true
       },
       /**继续下载*/
       "/resume" bind HttpMethod.Get to defineBooleanResponse {
-        debugDownload("resume", ipc.remote.mmid)
-        downloadModel.updateDownloadState(ipc.remote.mmid, JmmDownloadController.RESUME)
+        val mmid = request.queryOrNull("mmid") ?: ipc.remote.mmid
+        debugDownload("resume", "ipc->${ipc.remote.mmid}, mmid->$mmid")
+        downloadModel.updateDownloadState(mmid, JmmDownloadController.RESUME)
         true
       },
       "/cancel" bind HttpMethod.Get to defineBooleanResponse {
-        debugDownload("cancel", ipc.remote.mmid)
-        downloadModel.updateDownloadState(ipc.remote.mmid, JmmDownloadController.CANCEL)
+        val mmid = request.queryOrNull("mmid") ?: ipc.remote.mmid
+        debugDownload("cancel", "ipc->${ipc.remote.mmid}, mmid->$mmid")
+        downloadModel.updateDownloadState(mmid, JmmDownloadController.CANCEL)
         true
       },
       "/listen" bind HttpMethod.Get to definePureStreamHandler {

next/kmp/microService/src/androidMain/kotlin/org/dweb_browser/microservice/sys/download/HttpDownload.kt

@@ -7,6 +7,7 @@ import io.ktor.client.request.prepareGet
 import io.ktor.utils.io.ByteReadChannel
 import io.ktor.utils.io.core.isNotEmpty
 import io.ktor.utils.io.core.readBytes
+import kotlinx.coroutines.delay
 import org.dweb_browser.helper.platform.getKtorClientEngine
 import java.io.File
 
@@ -27,9 +28,10 @@ object HttpDownload {
       val contentLength = httpResponse.headers["content-length"]?.toLong() ?: downloadInfo.size
       var currentLength = 0L
       val channel: ByteReadChannel = httpResponse.body()
-      while (!channel.isClosedForRead && !isStop()) {
+      while (!channel.isClosedForRead) {
         val packet = channel.readRemaining(limit = DEFAULT_BUFFER_SIZE.toLong())
-        while (packet.isNotEmpty && !isStop()) {
+        while (packet.isNotEmpty) {
+          while (isStop()) delay(200)
           val bytes: ByteArray = packet.readBytes()
           file.appendBytes(array = bytes)
           currentLength += bytes.size

next/kmp/microService/src/androidMain/kotlin/org/dweb_browser/microservice/sys/download/JmmDownloadModel.kt

@@ -63,7 +63,6 @@ class DownloadModel(val downloadNMM: DownloadNMM) {
     private var notificationId = AtomicInteger(999)
   }
 
-  fun findDownloadApp(mmid: MMID) = downloadAppMap[mmid]
   fun exists(mmid: MMID) = downloadAppMap.containsKey(mmid)
 
   private val ioAsyncScope = MainScope() + ioAsyncExceptionHandler // 用于全局的协程调用
@@ -76,25 +75,29 @@ class DownloadModel(val downloadNMM: DownloadNMM) {
     val downloadInfo = jmm.toDownloadInfo(context)
     downloadAppMap[jmm.id] = downloadInfo
     HttpDownload.downloadAndSave(downloadInfo, isStop = {
+      // debugDownload("Downloading", "${jmm.id}, downloadStatus=${downloadInfo.downloadStatus}")
       when (downloadInfo.downloadStatus) {
-        JmmDownloadStatus.CANCEL, JmmDownloadStatus.FAIL, JmmDownloadStatus.PAUSE -> true
+        JmmDownloadStatus.CANCEL, JmmDownloadStatus.FAIL -> {
+          // 如果是cancel和fail，移除当前下载
+          downloadAppMap.remove(jmm.id)
+          downloadingMap.remove(jmm.id)
+          true
+        }
+        JmmDownloadStatus.PAUSE -> true
         else -> false
       }
     }) { current, total ->
-      debugDownload("Downloading", "current=$current, total=$total")
+      // debugDownload("Downloading", "current=$current, total=$total")
       ioAsyncScope.launch {
         downloadInfo.callDownLoadProgress(context, current, total)
       }
     }
     return true
   }
 
-  internal suspend fun breakDownloadApp() {
-
-  }
-
   internal fun updateDownloadState(mmid: MMID, event: JmmDownloadController) {
     downloadAppMap[mmid]?.apply {
+      debugDownload("updateDownloadState", "event=$event, mmid=$mmid")
       downloadStatus = when (event) {
         JmmDownloadController.CANCEL -> JmmDownloadStatus.CANCEL
         JmmDownloadController.RESUME -> JmmDownloadStatus.DownLoading