add download file plugin hook

assets/plugin/js/download_handler.js

@@ -0,0 +1,77 @@
+// ==========================================================================================
+// aliyunpan JS插件回调处理函数
+// 支持 JavaScript ECMAScript 5.1 语言规范
+//
+// 更多内容请查看官方文档：https://github.com/tickstep/aliyunpan
+// ==========================================================================================
+
+
+// ------------------------------------------------------------------------------------------
+// 函数说明：下载文件前的回调函数
+// 
+// 参数说明
+// context - 当前调用的上下文信息
+// {
+// 	"appName": "aliyunpan",
+// 	"version": "v0.1.3",
+// 	"userId": "11001d48564f43b3bc5662874f04bb11",
+// 	"nickname": "tickstep",
+// 	"fileDriveId": "19519111",
+// 	"albumDriveId": "29519122"
+// }
+// appName - 应用名称，当前固定为aliyunpan
+// version - 版本号
+// userId - 当前登录用户的ID
+// nickname - 用户昵称
+// fileDriveId - 用户文件网盘ID
+// albumDriveId - 用户相册网盘ID
+//
+// params - 文件下载前参数
+// {
+// 	"driveId": "19519221",
+// 	"driveFileName": "token.bat",
+// 	"driveFilePath": "aliyunpan/Downloads/token.bat",
+// 	"driveFileSha1": "08FBE28A5B8791A2F50225E2EC5CEEC3C7955A11",
+// 	"driveFileSize": 125330,
+// 	"driveFileType": "file",
+// 	"driveFileUpdatedAt": "2022-04-14 07:05:12",
+// 	"localFilePath": "aliyunpan\\Downloads\\token.bat"
+// }
+// driveId - 网盘ID
+// driveFileName - 网盘文件名
+// driveFilePath - 网盘文件绝对完整路径
+// driveFileSize - 网盘文件大小，单位B
+// driveFileSha1 - 网盘文件SHA1
+// driveFileType - 网盘文件类型，file-文件，folder-文件夹
+// driveFileUpdatedAt - 网盘文件修改时间
+// localFilePath - 下载文件到本地保存的路径，这个是相对路径，相对指定下载的目标文件夹
+// 
+// 返回值说明
+// {
+// 	"downloadApproved": "yes",
+// 	"localFilePath": "newfolder\\token.bat"
+// }
+// downloadApproved - 该文件是否下载，yes-确认下载，no-取消下载
+// localFilePath - 文件保存的本地路径，这个是相对路径，如果为空""代表保持原本的目标路径。
+//                 这个改动要小心，会导致重名文件下载只会下载一个
+// ------------------------------------------------------------------------------------------
+function downloadFilePrepareCallback(context, params) {
+    console.log(params)
+
+    var result = {
+        "downloadApproved": "yes",
+        "localFilePath": ""
+    };
+
+    // 所有的.dmg.exe文件，下载保存的文件后缀名去掉.exe，网盘文件不改动
+    if (params["driveFileName"].lastIndexOf(".dmg.exe") > 0) {
+        result["localFilePath"] = params["localFilePath"].substr(0, (params["localFilePath"].length - ".exe".length));
+    }
+
+    // 禁止.txt文件下载
+    if (params["driveFileName"].lastIndexOf(".txt") > 0) {
+        result["downloadApproved"] = "no";
+    }
+
+    return result;
+}

assets/plugin/js/upload_handler.js

@@ -51,7 +51,7 @@
 // }
 // uploadApproved - 该文件是否确认上传，yes-允许上传，no-禁止上传
 // driveFilePath - 文件保存的网盘路径，这个是相对路径，如果为空""代表保持原本的目标路径。
-//                 这个改动要小心，会导致重名文件上传失败
+//                 这个改动要小心，会导致重名文件只会上传一个
 // ------------------------------------------------------------------------------------------
 function uploadFilePrepareCallback(context, params) {
     var result = {

internal/functions/pandownload/download_task_unit.go

@@ -19,13 +19,15 @@ import (
 	"github.com/tickstep/aliyunpan-api/aliyunpan"
 	"github.com/tickstep/aliyunpan-api/aliyunpan/apierror"
 	"github.com/tickstep/aliyunpan/cmder/cmdtable"
+	"github.com/tickstep/aliyunpan/internal/config"
 	"github.com/tickstep/aliyunpan/internal/file/downloader"
 	"github.com/tickstep/aliyunpan/internal/functions"
+	"github.com/tickstep/aliyunpan/internal/plugins"
 	"github.com/tickstep/aliyunpan/internal/taskframework"
+	"github.com/tickstep/aliyunpan/library/requester/transfer"
 	"github.com/tickstep/library-go/converter"
 	"github.com/tickstep/library-go/logger"
 	"github.com/tickstep/library-go/requester"
-	"github.com/tickstep/aliyunpan/library/requester/transfer"
 	"github.com/tickstep/library-go/requester/rio/speeds"
 	"io"
 	"net/http"
@@ -150,7 +152,7 @@ func (dtu *DownloadTaskUnit) download() (err error) {
 			tb.SetHeader([]string{"#", "status", "range", "left", "speeds", "error"})
 			workersCallback(func(key int, worker *downloader.Worker) bool {
 				wrange := worker.GetRange()
-				tb.Append([]string{fmt.Sprint(worker.ID()), worker.GetStatus().StatusText(), wrange.ShowDetails(), strconv.FormatInt(wrange.Len(), 10), converter.ConvertFileSize(worker.GetSpeedsPerSecond(), 2)+"/s", fmt.Sprint(worker.Err())})
+				tb.Append([]string{fmt.Sprint(worker.ID()), worker.GetStatus().StatusText(), wrange.ShowDetails(), strconv.FormatInt(wrange.Len(), 10), converter.ConvertFileSize(worker.GetSpeedsPerSecond(), 2) + "/s", fmt.Sprint(worker.Err())})
 				return true
 			})
 
@@ -270,7 +272,7 @@ func (dtu *DownloadTaskUnit) handleError(result *taskframework.TaskUnitRunResult
 			result.NeedRetry = true
 		}
 	}
-	time.Sleep(1*time.Second)
+	time.Sleep(1 * time.Second)
 }
 
 //checkFileValid 检测文件有效性
@@ -343,6 +345,10 @@ func (dtu *DownloadTaskUnit) OnFailed(lastRunResult *taskframework.TaskUnitRunRe
 func (dtu *DownloadTaskUnit) OnComplete(lastRunResult *taskframework.TaskUnitRunResult) {
 }
 
+func (dtu *DownloadTaskUnit) OnCancel(lastRunResult *taskframework.TaskUnitRunResult) {
+
+}
+
 func (dtu *DownloadTaskUnit) RetryWait() time.Duration {
 	return functions.RetryWait(dtu.taskInfo.Retry())
 }
@@ -363,7 +369,7 @@ func (dtu *DownloadTaskUnit) Run() (result *taskframework.TaskUnitRunResult) {
 			dtu.handleError(result)
 			return
 		}
-		time.Sleep(1*time.Second)
+		time.Sleep(1 * time.Second)
 	}
 
 	// 输出文件信息
@@ -378,15 +384,15 @@ func (dtu *DownloadTaskUnit) Run() (result *taskframework.TaskUnitRunResult) {
 		}
 
 		// 获取该目录下的文件列表
-		fileList,apierr := dtu.PanClient.FileListGetAll(&aliyunpan.FileListParam{
+		fileList, apierr := dtu.PanClient.FileListGetAll(&aliyunpan.FileListParam{
 			DriveId:      dtu.DriveId,
 			ParentFileId: dtu.fileInfo.FileId,
 		})
 		if apierr != nil {
 			// retry one more time
-			time.Sleep(3*time.Second)
+			time.Sleep(3 * time.Second)
 
-			fileList,apierr = dtu.PanClient.FileListGetAll(&aliyunpan.FileListParam{
+			fileList, apierr = dtu.PanClient.FileListGetAll(&aliyunpan.FileListParam{
 				DriveId:      dtu.DriveId,
 				ParentFileId: dtu.fileInfo.FileId,
 			})
@@ -408,7 +414,7 @@ func (dtu *DownloadTaskUnit) Run() (result *taskframework.TaskUnitRunResult) {
 			result.NeedRetry = true
 			return
 		}
-		time.Sleep(1*time.Second)
+		time.Sleep(1 * time.Second)
 
 		// 创建对应的任务进行下载
 		for k := range fileList {
@@ -436,6 +442,37 @@ func (dtu *DownloadTaskUnit) Run() (result *taskframework.TaskUnitRunResult) {
 		return
 	}
 
+	// 调用插件
+	pluginManger := plugins.NewPluginManager(config.GetPluginDir())
+	plugin, _ := pluginManger.GetPlugin()
+	localFilePath := strings.TrimPrefix(dtu.SavePath, dtu.OriginSaveRootPath)
+	localFilePath = strings.TrimPrefix(strings.TrimPrefix(localFilePath, "\\"), "/")
+	pluginParam := &plugins.DownloadFilePrepareParams{
+		DriveId:            dtu.fileInfo.DriveId,
+		DriveFilePath:      dtu.fileInfo.Path,
+		DriveFileName:      dtu.fileInfo.FileName,
+		DriveFileSize:      dtu.fileInfo.FileSize,
+		DriveFileType:      "file",
+		DriveFileSha1:      dtu.fileInfo.ContentHash,
+		DriveFileUpdatedAt: dtu.fileInfo.UpdatedAt,
+		LocalFilePath:      localFilePath,
+	}
+	if downloadFilePrepareResult, er := plugin.DownloadFilePrepareCallback(plugins.GetContext(config.Config.ActiveUser()), pluginParam); er == nil && downloadFilePrepareResult != nil {
+		if strings.Compare("yes", downloadFilePrepareResult.DownloadApproved) != 0 {
+			// skip download this file
+			fmt.Printf("插件取消了该文件下载: %s\n", dtu.fileInfo.Path)
+			result.Succeed = false
+			result.Cancel = true
+			return
+		}
+		if downloadFilePrepareResult.LocalFilePath != "" {
+			targetSaveRelativePath := strings.TrimPrefix(downloadFilePrepareResult.LocalFilePath, "/")
+			targetSaveRelativePath = strings.TrimPrefix(targetSaveRelativePath, "\\")
+			dtu.SavePath = path.Clean(dtu.OriginSaveRootPath + string(os.PathSeparator) + targetSaveRelativePath)
+			fmt.Printf("插件修改文件下载保存路径为: %s\n", dtu.SavePath)
+		}
+	}
+
 	fmt.Printf("[%s] 准备下载: %s\n", dtu.taskInfo.Id(), dtu.FilePanPath)
 
 	if !dtu.IsOverwrite && FileExist(dtu.SavePath) {

internal/functions/panupload/upload_task_unit.go

@@ -294,7 +294,9 @@ var ResultUpdateLocalDatabase = &taskframework.TaskUnitRunResult{ResultCode: 2,
 func (utu *UploadTaskUnit) OnComplete(lastRunResult *taskframework.TaskUnitRunResult) {
 	// 任务结束，可能成功也可能失败
 }
+func (utu *UploadTaskUnit) OnCancel(lastRunResult *taskframework.TaskUnitRunResult) {
 
+}
 func (utu *UploadTaskUnit) RetryWait() time.Duration {
 	return functions.RetryWait(utu.taskInfo.Retry())
 }

internal/plugins/idle_plugin.go

@@ -20,6 +20,10 @@ func (p *IdlePlugin) UploadFilePrepareCallback(context *Context, params *UploadF
 	return nil, nil
 }
 
+func (p *IdlePlugin) DownloadFilePrepareCallback(context *Context, params *DownloadFilePrepareParams) (*DownloadFilePrepareResult, error) {
+	return nil, nil
+}
+
 func (p *IdlePlugin) Stop() error {
 	return nil
 }

internal/plugins/js_plugin.go

@@ -105,6 +105,25 @@ func (js *JsPlugin) UploadFileFinishCallback(context *Context, params *UploadFil
 	return nil
 }
 
+// DownloadFilePrepareCallback 下载文件前的回调函数
+func (js *JsPlugin) DownloadFilePrepareCallback(context *Context, params *DownloadFilePrepareParams) (*DownloadFilePrepareResult, error) {
+	var fn func(*Context, *DownloadFilePrepareParams) (*DownloadFilePrepareResult, error)
+	if !js.isHandlerFuncExisted("downloadFilePrepareCallback") {
+		return nil, nil
+	}
+	err := js.vm.ExportTo(js.vm.Get("downloadFilePrepareCallback"), &fn)
+	if err != nil {
+		logger.Verboseln("Js函数映射到 Go 函数失败！")
+		return nil, nil
+	}
+	r, er := fn(context, params)
+	if er != nil {
+		logger.Verboseln(er)
+		return nil, er
+	}
+	return r, nil
+}
+
 func (js *JsPlugin) Stop() error {
 	return nil
 }

internal/plugins/plugin.go

@@ -56,6 +56,26 @@ type (
 		DriveFilePath      string `json:"driveFilePath"`
 	}
 
+	// DownloadFilePrepareParams 下载文件前的回调函数-参数
+	DownloadFilePrepareParams struct {
+		DriveId            string `json:"driveId"`
+		DriveFileName      string `json:"driveFileName"`
+		DriveFilePath      string `json:"driveFilePath"`
+		DriveFileSha1      string `json:"driveFileSha1"`
+		DriveFileSize      int64  `json:"driveFileSize"`
+		DriveFileType      string `json:"driveFileType"`
+		DriveFileUpdatedAt string `json:"driveFileUpdatedAt"`
+		LocalFilePath      string `json:"localFilePath"`
+	}
+
+	// DownloadFilePrepareResult 上传文件前的回调函数-返回结果
+	DownloadFilePrepareResult struct {
+		// DownloadApproved 确认该文件是否下载。yes-下载 no-不下载
+		DownloadApproved string `json:"downloadApproved"`
+		// LocalFilePath 保存本地的修改后的路径。注意该路径是相对路径
+		LocalFilePath string `json:"localFilePath"`
+	}
+
 	// Plugin 插件接口
 	Plugin interface {
 		// Start 启动
@@ -67,6 +87,9 @@ type (
 		// UploadFileFinishCallback 上传文件完成的回调函数
 		UploadFileFinishCallback(context *Context, params *UploadFileFinishParams) error
 
+		// DownloadFilePrepareCallback 下载文件前的回调函数
+		DownloadFilePrepareCallback(context *Context, params *DownloadFilePrepareParams) (*DownloadFilePrepareResult, error)
+
 		// Stop 停止
 		Stop() error
 	}

internal/plugins/plugin_manager_test.go

@@ -6,7 +6,7 @@ import (
 	"testing"
 )
 
-func TestPlugin(t *testing.T) {
+func TestPluginUpload(t *testing.T) {
 	pluginManager := NewPluginManager("D:\\smb\\feny\\goprojects\\dev")
 	plugin, err := pluginManager.GetPlugin()
 	if err != nil {
@@ -39,3 +39,38 @@ func TestPlugin(t *testing.T) {
 	}
 	fmt.Println(r)
 }
+
+func TestPluginDownload(t *testing.T) {
+	pluginManager := NewPluginManager("/Volumes/Downloads/dev/config/plugin")
+	plugin, err := pluginManager.GetPlugin()
+	if err != nil {
+		fmt.Println(err)
+	}
+	ctx := &Context{
+		AppName:      "aliyunpan",
+		Version:      "v0.1.3",
+		UserId:       "11001d48564f43b3bc5662874f04bb11",
+		Nickname:     "tickstep",
+		FileDriveId:  "19519121",
+		AlbumDriveId: "29519122",
+	}
+	params := &DownloadFilePrepareParams{
+		DriveId:            "19519221",
+		DriveFilePath:      "/test/aliyunpan/Downloads/token.bat",
+		DriveFileName:      "token.bat",
+		DriveFileSize:      125330,
+		DriveFileType:      "file",
+		DriveFileSha1:      "08FBE28A5B8791A2F50225E2EC5CEEC3C7955A11",
+		DriveFileUpdatedAt: "2022-04-14 07:05:12",
+		LocalFilePath:      "aliyunpan\\Downloads\\token.bat",
+	}
+	b, _ := jsoniter.Marshal(ctx)
+	fmt.Println(string(b))
+	b, _ = jsoniter.Marshal(params)
+	fmt.Println(string(b))
+	r, e := plugin.DownloadFilePrepareCallback(ctx, params)
+	if e != nil {
+		fmt.Println(e)
+	}
+	fmt.Println(r)
+}

internal/taskframework/executor.go

@@ -116,6 +116,12 @@ func (te *TaskExecutor) Execute() {
 					return
 				}
 
+				// 取消下载
+				if result.Cancel {
+					task.Unit.OnCancel(result)
+					return
+				}
+
 				if result.Succeed {
 					task.Unit.OnSuccess(result)
 					task.Unit.OnComplete(result)

internal/taskframework/task_unit.go

@@ -29,6 +29,8 @@ type (
 		OnFailed(lastRunResult *TaskUnitRunResult)
 		// 每次执行结束执行的方法, 不管成功失败
 		OnComplete(lastRunResult *TaskUnitRunResult)
+		// 取消下载
+		OnCancel(lastRunResult *TaskUnitRunResult)
 		// 重试等待的时间
 		RetryWait() time.Duration
 	}
@@ -37,6 +39,7 @@ type (
 	TaskUnitRunResult struct {
 		Succeed   bool // 是否执行成功
 		NeedRetry bool // 是否需要重试
+		Cancel    bool // 是否取消了任务
 
 		// 以下是额外的信息
 		Err           error       // 错误信息

internal/taskframework/taskframework_test.go

@@ -51,6 +51,10 @@ func (tu *TestUnit) Run() (result *taskframework.TaskUnitRunResult) {
 	}
 }
 
+func (tu *TestUnit) OnCancel(lastRunResult *taskframework.TaskUnitRunResult) {
+
+}
+
 func (tu *TestUnit) OnRetry(lastRunResult *taskframework.TaskUnitRunResult) {
 	fmt.Printf("[%s] prepare retry, times [%d/%d]...\n", tu.taskInfo.Id(), tu.taskInfo.Retry(), tu.taskInfo.MaxRetry())
 }