feat: support import files from storages to telegram (#183)

* feat: add import command and batch import functionality

- Implemented the `/import` command to allow users to import files from storage to Telegram.
- Added support for listing files in storage and filtering based on regex patterns.
- Created a batch import task to handle multiple file uploads concurrently.
- Introduced progress tracking for batch imports, providing real-time updates to users.
- Enhanced storage interfaces to support file listing and reading capabilities.
- Updated localization files for the new import command and its usage instructions.
- Added utility functions for file size formatting and speed calculation.
- Refactored Telegram storage handling to support reading from non-seekable streams.

* feat: add  i18n for import command

* feat: implement ListFiles and OpenFile methods for WebDAV and Alist storage

* Update common/i18n/locale/zh-Hans.yaml

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update core/tasks/batchimport/progress.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update core/tasks/batchimport/execute.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update storage/alist/alist.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update common/i18n/locale/en.yaml

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update pkg/storagetypes/fileinfo.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update common/i18n/locale/en.yaml

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update core/tasks/batchimport/execute.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update storage/webdav/webdav.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update storage/telegram/telegram.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update core/tasks/batchimport/execute.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update storage/webdav/webdav.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* fix: missing progress stats i18n

* refactor: use strutil to parse args

* chore: update generated code files for consistency

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

client/bot/handlers/import.go

@@ -0,0 +1,182 @@
+package handlers
+
+import (
+	"fmt"
+	"regexp"
+
+	"github.com/celestix/gotgproto/dispatcher"
+	"github.com/celestix/gotgproto/ext"
+	"github.com/charmbracelet/log"
+	"github.com/gotd/td/tg"
+	"github.com/krau/SaveAny-Bot/common/i18n"
+	"github.com/krau/SaveAny-Bot/common/i18n/i18nk"
+	"github.com/krau/SaveAny-Bot/common/utils/strutil"
+	"github.com/krau/SaveAny-Bot/common/utils/tgutil"
+	"github.com/krau/SaveAny-Bot/config"
+	storconfig "github.com/krau/SaveAny-Bot/config/storage"
+	"github.com/krau/SaveAny-Bot/core"
+	"github.com/krau/SaveAny-Bot/core/tasks/batchimport"
+	"github.com/krau/SaveAny-Bot/pkg/storagetypes"
+	"github.com/krau/SaveAny-Bot/storage"
+	"github.com/rs/xid"
+)
+
+func handleImportCmd(ctx *ext.Context, update *ext.Update) error {
+	logger := log.FromContext(ctx)
+	args := strutil.ParseArgsRespectQuotes(update.EffectiveMessage.Text)
+
+	if len(args) < 3 {
+		ctx.Reply(update, ext.ReplyTextString(i18n.T(i18nk.BotMsgImportUsage, nil)), nil)
+		return dispatcher.EndGroups
+	}
+
+	storageName := args[1]
+	dirPath := args[2]
+
+	userID := update.GetUserChat().GetID()
+
+	stor, err := storage.GetStorageByUserIDAndName(ctx, userID, storageName)
+	if err != nil {
+		logger.Errorf("Failed to get storage by user ID and name: %s", err)
+		ctx.Reply(update, ext.ReplyTextString(i18n.T(i18nk.BotMsgImportErrorStorageNotFound, map[string]any{
+			"StorageName": storageName,
+			"Error":       err,
+		})), nil)
+		return dispatcher.EndGroups
+	}
+
+	listable, ok := stor.(storage.StorageListable)
+	if !ok {
+		ctx.Reply(update, ext.ReplyTextString(i18n.T(i18nk.BotMsgImportErrorStorageNotListable, map[string]any{
+			"StorageName": storageName,
+		})), nil)
+		return dispatcher.EndGroups
+	}
+
+	_, ok = stor.(storage.StorageReadable)
+	if !ok {
+		ctx.Reply(update, ext.ReplyTextString(i18n.T(i18nk.BotMsgImportErrorStorageNotReadable, map[string]any{
+			"StorageName": storageName,
+		})), nil)
+		return dispatcher.EndGroups
+	}
+
+	telegramStorage, err := storage.GetTelegramStorageByUserID(ctx, userID)
+	if err != nil {
+		ctx.Reply(update, ext.ReplyTextString(i18n.T(i18nk.BotMsgImportErrorNoTelegramStorage, map[string]any{
+			"Error": err,
+		})), nil)
+		return dispatcher.EndGroups
+	}
+
+	replied, err := ctx.Reply(update, ext.ReplyTextString(i18n.T(i18nk.BotMsgImportInfoFetchingFiles, nil)), nil)
+	if err != nil {
+		logger.Errorf("Failed to reply: %s", err)
+		return dispatcher.EndGroups
+	}
+
+	files, err := listable.ListFiles(ctx, dirPath)
+	if err != nil {
+		ctx.EditMessage(update.EffectiveChat().GetID(), &tg.MessagesEditMessageRequest{
+			ID:      replied.ID,
+			Message: i18n.T(i18nk.BotMsgImportErrorListFilesFailed, map[string]any{"Error": err}),
+		})
+		return dispatcher.EndGroups
+	}
+
+	var filter *regexp.Regexp
+	if len(args) >= 5 {
+		filter, err = regexp.Compile(args[4])
+		if err != nil {
+			ctx.EditMessage(update.EffectiveChat().GetID(), &tg.MessagesEditMessageRequest{
+				ID:      replied.ID,
+				Message: i18n.T(i18nk.BotMsgImportErrorInvalidRegex, map[string]any{"Error": err}),
+			})
+			return dispatcher.EndGroups
+		}
+	}
+
+	filteredFiles := make([]storagetypes.FileInfo, 0)
+	for _, file := range files {
+		if file.IsDir {
+			continue
+		}
+		if filter != nil && !filter.MatchString(file.Name) {
+			continue
+		}
+		filteredFiles = append(filteredFiles, file)
+	}
+
+	if len(filteredFiles) == 0 {
+		ctx.EditMessage(update.EffectiveChat().GetID(), &tg.MessagesEditMessageRequest{
+			ID:      replied.ID,
+			Message: i18n.T(i18nk.BotMsgImportErrorNoFilesToImport, nil),
+		})
+		return dispatcher.EndGroups
+	}
+
+	// Get default chat_id from Telegram storage config
+	targetChatID := int64(0)
+	if telegramCfg := config.C().GetStorageByName(telegramStorage.Name()); telegramCfg != nil {
+		if tgCfg, ok := telegramCfg.(*storconfig.TelegramStorageConfig); ok {
+			targetChatID = tgCfg.ChatID
+		}
+	}
+
+	if len(args) >= 4 {
+		parsedChatID, err := tgutil.ParseChatID(ctx, args[3])
+		if err != nil {
+			ctx.EditMessage(update.EffectiveChat().GetID(), &tg.MessagesEditMessageRequest{
+				ID:      replied.ID,
+				Message: i18n.T(i18nk.BotMsgImportErrorInvalidChatId, map[string]any{"Error": err}),
+			})
+			return dispatcher.EndGroups
+		}
+		targetChatID = parsedChatID
+	}
+
+	if targetChatID == 0 {
+		ctx.EditMessage(update.EffectiveChat().GetID(), &tg.MessagesEditMessageRequest{
+			ID:      replied.ID,
+			Message: i18n.T(i18nk.BotMsgImportErrorNoTargetChatId, nil),
+		})
+		return dispatcher.EndGroups
+	}
+
+	elems := make([]batchimport.TaskElement, 0, len(filteredFiles))
+	var totalSize int64
+	for _, file := range filteredFiles {
+		elem := batchimport.NewTaskElement(stor, file, telegramStorage, targetChatID)
+		elems = append(elems, *elem)
+		totalSize += file.Size
+	}
+
+	taskID := xid.New().String()
+	injectCtx := tgutil.ExtWithContext(ctx.Context, ctx)
+	task := batchimport.NewBatchImportTask(
+		taskID,
+		injectCtx,
+		elems,
+		batchimport.NewProgressTracker(replied.ID, userID),
+		true, // IgnoreErrors
+	)
+
+	if err := core.AddTask(injectCtx, task); err != nil {
+		ctx.EditMessage(update.EffectiveChat().GetID(), &tg.MessagesEditMessageRequest{
+			ID:      replied.ID,
+			Message: i18n.T(i18nk.BotMsgImportErrorAddTaskFailed, map[string]any{"Error": err}),
+		})
+		return dispatcher.EndGroups
+	}
+
+	ctx.EditMessage(update.EffectiveChat().GetID(), &tg.MessagesEditMessageRequest{
+		ID: replied.ID,
+		Message: i18n.T(i18nk.BotMsgImportInfoTaskAdded, map[string]any{
+			"Count":  len(elems),
+			"SizeMB": fmt.Sprintf("%.2f", float64(totalSize)/(1024*1024)),
+			"TaskID": taskID,
+		}),
+	})
+
+	return dispatcher.EndGroups
+}

client/bot/handlers/register.go

@@ -31,6 +31,7 @@ var CommandHandlers = []DescCommandHandler{
 	{"dl", i18nk.BotMsgCmdDl, handleDlCmd},
 	{"aria2dl", i18nk.BotMsgCmdAria2dl, handleAria2DlCmd},
 	{"ytdlp", i18nk.BotMsgCmdYtdlp, handleYtdlpCmd},
+	{"import", i18nk.BotMsgCmdImport, handleImportCmd},
 	{"task", i18nk.BotMsgCmdTask, handleTaskCmd},
 	{"cancel", i18nk.BotMsgCmdCancel, handleCancelCmd},
 	{"config", i18nk.BotMsgCmdConfig, handleConfigCmd},

common/i18n/i18nk/keys.go

@@ -21,6 +21,7 @@ const (
 	BotMsgCmdDl                                           Key = "bot.msg.cmd.dl"
 	BotMsgCmdFnametmpl                                    Key = "bot.msg.cmd.fnametmpl"
 	BotMsgCmdHelp                                         Key = "bot.msg.cmd.help"
+	BotMsgCmdImport                                       Key = "bot.msg.cmd.import"
 	BotMsgCmdLswatch                                      Key = "bot.msg.cmd.lswatch"
 	BotMsgCmdParser                                       Key = "bot.msg.cmd.parser"
 	BotMsgCmdRule                                         Key = "bot.msg.cmd.rule"
@@ -105,6 +106,20 @@ const (
 	BotMsgDlInfoFilesSelectStorage                        Key = "bot.msg.dl.info_files_select_storage"
 	BotMsgDlUsage                                         Key = "bot.msg.dl.usage"
 	BotMsgHelpTextFmt                                     Key = "bot.msg.help_text_fmt"
+	BotMsgImportErrorAddTaskFailed                        Key = "bot.msg.import.error_add_task_failed"
+	BotMsgImportErrorInvalidChatId                        Key = "bot.msg.import.error_invalid_chat_id"
+	BotMsgImportErrorInvalidRegex                         Key = "bot.msg.import.error_invalid_regex"
+	BotMsgImportErrorListFilesFailed                      Key = "bot.msg.import.error_list_files_failed"
+	BotMsgImportErrorNoFilesToImport                      Key = "bot.msg.import.error_no_files_to_import"
+	BotMsgImportErrorNoTargetChatId                       Key = "bot.msg.import.error_no_target_chat_id"
+	BotMsgImportErrorNoTelegramStorage                    Key = "bot.msg.import.error_no_telegram_storage"
+	BotMsgImportErrorStorageNotFound                      Key = "bot.msg.import.error_storage_not_found"
+	BotMsgImportErrorStorageNotListable                   Key = "bot.msg.import.error_storage_not_listable"
+	BotMsgImportErrorStorageNotReadable                   Key = "bot.msg.import.error_storage_not_readable"
+	BotMsgImportInfoFetchingFiles                         Key = "bot.msg.import.info_fetching_files"
+	BotMsgImportInfoTaskAdded                             Key = "bot.msg.import.info_task_added"
+	BotMsgImportStartStats                                Key = "bot.msg.import.start_stats"
+	BotMsgImportUsage                                     Key = "bot.msg.import.usage"
 	BotMsgMediaGroupErrorBuildStorageSelectKeyboardFailed Key = "bot.msg.media_group.error_build_storage_select_keyboard_failed"
 	BotMsgMediaGroupInfoGroupFoundFilesSelectStorage      Key = "bot.msg.media_group.info_group_found_files_select_storage"
 	BotMsgMediaGroupInfoSavingFiles                       Key = "bot.msg.media_group.info_saving_files"
@@ -149,6 +164,20 @@ const (
 	BotMsgProgressFileProcessingPrefix                    Key = "bot.msg.progress.file_processing_prefix"
 	BotMsgProgressFileSizePrefix                          Key = "bot.msg.progress.file_size_prefix"
 	BotMsgProgressFileStartPrefix                         Key = "bot.msg.progress.file_start_prefix"
+	BotMsgProgressImportAvgSpeedPrefix                    Key = "bot.msg.progress.import_avg_speed_prefix"
+	BotMsgProgressImportElapsedTimePrefix                 Key = "bot.msg.progress.import_elapsed_time_prefix"
+	BotMsgProgressImportFailedFilesPrefix                 Key = "bot.msg.progress.import_failed_files_prefix"
+	BotMsgProgressImportFailedPrefix                      Key = "bot.msg.progress.import_failed_prefix"
+	BotMsgProgressImportProcessingMore                    Key = "bot.msg.progress.import_processing_more"
+	BotMsgProgressImportProcessingPrefix                  Key = "bot.msg.progress.import_processing_prefix"
+	BotMsgProgressImportProgressPrefix                    Key = "bot.msg.progress.import_progress_prefix"
+	BotMsgProgressImportRemainingTimePrefix               Key = "bot.msg.progress.import_remaining_time_prefix"
+	BotMsgProgressImportSpeedPrefix                       Key = "bot.msg.progress.import_speed_prefix"
+	BotMsgProgressImportStartPrefix                       Key = "bot.msg.progress.import_start_prefix"
+	BotMsgProgressImportSuccessPrefix                     Key = "bot.msg.progress.import_success_prefix"
+	BotMsgProgressImportTotalFilesPrefix                  Key = "bot.msg.progress.import_total_files_prefix"
+	BotMsgProgressImportTotalSizePrefix                   Key = "bot.msg.progress.import_total_size_prefix"
+	BotMsgProgressImportUploadedPrefix                    Key = "bot.msg.progress.import_uploaded_prefix"
 	BotMsgProgressParsedDonePrefix                        Key = "bot.msg.progress.parsed_done_prefix"
 	BotMsgProgressParsedStartPrefix                       Key = "bot.msg.progress.parsed_start_prefix"
 	BotMsgProgressProcessingListPrefix                    Key = "bot.msg.progress.processing_list_prefix"

common/i18n/locale/en.yaml

@@ -29,6 +29,7 @@ bot:
       /silent - Toggle silent mode
       /storage - Set default storage
       /save [custom filename] - Save file
+      /import <storage_name> <dir_path> [channel_id] [filter] - Import files from storage to Telegram
       /dir - Manage storage directories
       /rule - Manage rules
       /config - Modify configuration
@@ -52,6 +53,7 @@ bot:
       dl: "Download files from given links"
       aria2dl: "Download files using Aria2"
       ytdlp: "Download video/audio using yt-dlp"
+      import: "Import files from storage to Telegram"
       task: "Manage task queue"
       cancel: "Cancel task"
       watch: "Watch chats (UserBot)"
@@ -294,6 +296,20 @@ bot:
       info_urls_select_storage: "Found {{.Count}} links, please select storage"
       info_downloading: "Downloading via yt-dlp..."
       error_download_failed: "yt-dlp download failed: {{.Error}}"
+    import:
+      usage: "Usage: /import <storage_name> <dir_path> [target_chat_id] [filter]\n\nExamples:\n/import local1 /downloads\n/import MyAlist /media/photos -1001234567890\n/import MyLocal /backup \".*[.]mp4$\""
+      error_storage_not_found: "Storage '{{.StorageName}}' not found or access denied: {{.Error}}"
+      error_storage_not_listable: "Storage '{{.StorageName}}' does not support listing files"
+      error_storage_not_readable: "Storage '{{.StorageName}}' does not support reading files"
+      error_no_telegram_storage: "No Telegram storage found: {{.Error}}"
+      info_fetching_files: "Fetching file list..."
+      error_list_files_failed: "Failed to list files: {{.Error}}"
+      error_invalid_regex: "Invalid regular expression: {{.Error}}"
+      error_no_files_to_import: "No files to import in directory"
+      error_invalid_chat_id: "Invalid Chat ID: {{.Error}}"
+      error_no_target_chat_id: "No target channel ID specified and Telegram storage has no default chat_id configured"
+      error_add_task_failed: "Failed to add task: {{.Error}}"
+      info_task_added: "Added {{.Count}} files to import queue\nTotal size: {{.SizeMB}} MB\nTask ID: {{.TaskID}}"
     cancel:
       usage: "Usage: /cancel <task_id>"
       error_cancel_failed: "Failed to cancel task: {{.Error}}"
@@ -342,6 +358,20 @@ bot:
       ytdlp_done: "yt-dlp download completed and transferred ({{.Count}} files)\n"
       downloaded_prefix: "\nDownloaded: "
       current_speed_prefix: "\nCurrent speed: "
+      import_start_prefix: "Importing: "
+      import_progress_prefix: "Import progress: "
+      import_uploaded_prefix: "\nUploaded: "
+      import_speed_prefix: "\nSpeed: "
+      import_remaining_time_prefix: "\nRemaining time: "
+      import_processing_prefix: "\nProcessing:\n"
+      import_processing_more: "...and {{.Count}} more files\n"
+      import_failed_prefix: "Import failed\n"
+      import_success_prefix: "Import completed\n"
+      import_total_files_prefix: "\nTotal files: "
+      import_total_size_prefix: "\nTotal size: "
+      import_elapsed_time_prefix: "\nElapsed time: "
+      import_avg_speed_prefix: "\nAverage speed: "
+      import_failed_files_prefix: "\nFailed files: "
     syncpeers:
       start: "Starting to sync peers..."
       done: "Peer sync completed, total {{.Count}} chats synced"

common/i18n/locale/zh-Hans.yaml

@@ -30,6 +30,7 @@ bot:
       /storage - 设置默认存储位置
       /save [自定义文件名] - 保存文件
       /dl <链接1> <链接2> ... - 下载给定链接的文件
+      /import <存储名> <目录路径> [频道ID] [过滤器] - 从存储端导入文件到 Telegram
       /dir - 管理存储目录
       /rule - 管理规则
       /config - 修改配置
@@ -53,6 +54,7 @@ bot:
       dl: "下载给定链接的文件"
       aria2dl: "使用 Aria2 下载给定链接的文件"
       ytdlp: "使用 yt-dlp 下载视频/音频"
+      import: "从存储端导入文件到 Telegram"
       task: "管理任务队列"
       cancel: "取消任务"
       watch: "监听聊天(UserBot)"
@@ -295,6 +297,26 @@ bot:
       info_urls_select_storage: "共 {{.Count}} 个链接, 请选择存储位置"
       info_downloading: "正在通过 yt-dlp 下载..."
       error_download_failed: "yt-dlp 下载失败: {{.Error}}"
+    import:
+      usage: |
+        用法: /import <storage_name> <dir_path> [target_chat_id] [filter]
+        示例:
+        /import 本机1 /downloads
+        /import MyAlist /media/photos -1001234567890
+        /import MyLocal /backup ".*\.mp4$"
+      error_storage_not_found: "存储端 '{{.StorageName}}' 不存在或您无权访问: {{.Error}}"
+      error_storage_not_listable: "存储端 '{{.StorageName}}' 不支持列举文件功能"
+      error_storage_not_readable: "存储端 '{{.StorageName}}' 不支持读取文件功能"
+      error_no_telegram_storage: "未找到可用的 Telegram 存储: {{.Error}}"
+      info_fetching_files: "正在获取文件列表..."
+      error_list_files_failed: "获取文件列表失败: {{.Error}}"
+      error_invalid_regex: "正则表达式无效: {{.Error}}"
+      error_no_files_to_import: "目录中没有可导入的文件"
+      error_invalid_chat_id: "无效的 Chat ID: {{.Error}}"
+      error_no_target_chat_id: "未指定目标频道 ID，且 Telegram 存储未配置默认 chat_id"
+      error_add_task_failed: "添加任务失败: {{.Error}}"
+      info_task_added: "已添加 {{.Count}} 个文件到导入队列\n总大小: {{.SizeMB}} MB\n任务 ID: {{.TaskID}}"
+      start_stats: "总文件数: {{.Count}}\n总大小: {{.SizeMB}} MB"
     cancel:
       usage: "用法: /cancel <task_id>"
       error_cancel_failed: "取消任务失败: {{.Error}}"
@@ -343,6 +365,20 @@ bot:
       ytdlp_done: "yt-dlp 下载完成并已转存 ({{.Count}} 个文件)\n"
       downloaded_prefix: "\n已下载: "
       current_speed_prefix: "\n当前速度: "
+      import_start_prefix: "正在导入: "
+      import_progress_prefix: "导入进度: "
+      import_uploaded_prefix: "\n已上传: "
+      import_speed_prefix: "\n速度: "
+      import_remaining_time_prefix: "\n剩余时间: "
+      import_processing_prefix: "\n正在处理:\n"
+      import_processing_more: "...和其他 {{.Count}} 个文件\n"
+      import_failed_prefix: "导入失败\n"
+      import_success_prefix: "导入完成\n"
+      import_total_files_prefix: "\n总文件数: "
+      import_total_size_prefix: "\n总大小: "
+      import_elapsed_time_prefix: "\n耗时: "
+      import_avg_speed_prefix: "\n平均速度: "
+      import_failed_files_prefix: "\n失败文件数: "
     syncpeers:
       start: "正在同步对话列表..."
       success: "对话列表同步完成, 共同步 {{.Count}} 个对话"
@@ -353,4 +389,4 @@ bot:
       info_adding_aria2_download: "正在添加 Aria2 下载任务..."
       error_adding_aria2_download: "添加 Aria2 下载任务失败: {{.Error}}"
       info_aria2_download_added: "Aria2 下载任务已添加, GID: {{.GID}}"
-      info_select_storage: "请选择存储位置, 选择后将添加到 Aria2 下载队列"
+      info_select_storage: "请选择存储位置, 选择后将添加到 Aria2 下载队列"

common/utils/dlutil/dl.go

@@ -1,6 +1,9 @@
 package dlutil
 
-import "time"
+import (
+	"fmt"
+	"time"
+)
 
 var threadsLevels = []struct {
 	threads int
@@ -31,3 +34,23 @@ func GetSpeed(downloaded int64, startTime time.Time) float64 {
 	}
 	return float64(downloaded) / elapsed
 }
+
+// FormatSize formats a byte size as a human-readable string
+func FormatSize(bytes int64) string {
+	const (
+		KB = 1024
+		MB = KB * 1024
+		GB = MB * 1024
+	)
+	
+	switch {
+	case bytes >= GB:
+		return fmt.Sprintf("%.2f GB", float64(bytes)/float64(GB))
+	case bytes >= MB:
+		return fmt.Sprintf("%.2f MB", float64(bytes)/float64(MB))
+	case bytes >= KB:
+		return fmt.Sprintf("%.2f KB", float64(bytes)/float64(KB))
+	default:
+		return fmt.Sprintf("%d B", bytes)
+	}
+}

core/tasks/batchimport/execute.go

@@ -0,0 +1,141 @@
+package batchimport
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+
+	"github.com/charmbracelet/log"
+	"github.com/krau/SaveAny-Bot/config"
+	"github.com/krau/SaveAny-Bot/pkg/enums/ctxkey"
+	"github.com/krau/SaveAny-Bot/storage"
+	"golang.org/x/sync/errgroup"
+)
+
+// Execute implements core.Executable.
+func (t *Task) Execute(ctx context.Context) error {
+	logger := log.FromContext(ctx).WithPrefix(fmt.Sprintf("batch_import[%s]", t.ID))
+	logger.Info("Starting batch import task")
+	t.Progress.OnStart(ctx, t)
+
+	workers := config.C().Workers
+	eg, gctx := errgroup.WithContext(ctx)
+	eg.SetLimit(workers)
+
+	for _, elem := range t.elems {
+		eg.Go(func() error {
+			t.processingMu.RLock()
+			if t.processing[elem.ID] != nil {
+				t.processingMu.RUnlock()
+				return fmt.Errorf("element with ID %s is already being processed", elem.ID)
+			}
+			t.processingMu.RUnlock()
+
+			t.processingMu.Lock()
+			t.processing[elem.ID] = &elem
+			t.processingMu.Unlock()
+
+			defer func() {
+				t.processingMu.Lock()
+				delete(t.processing, elem.ID)
+				t.processingMu.Unlock()
+			}()
+
+			err := t.processElement(gctx, elem)
+			if err != nil && !t.IgnoreErrors {
+				return err
+			}
+			if err != nil {
+				t.processingMu.Lock()
+				t.failed[elem.ID] = err
+				t.processingMu.Unlock()
+				logger.Errorf("Failed to process file %s: %v", elem.FileInfo.Name, err)
+			}
+			return nil
+		})
+	}
+
+	err := eg.Wait()
+	if err != nil {
+		logger.Errorf("Error during batch import processing: %v", err)
+	} else {
+		logger.Info("Batch import task completed successfully")
+	}
+
+	t.Progress.OnDone(ctx, t, err)
+	return err
+}
+
+func (t *Task) processElement(ctx context.Context, elem TaskElement) error {
+	logger := log.FromContext(ctx).WithPrefix(fmt.Sprintf("file[%s]", elem.FileInfo.Name))
+
+	// Check whether the source storage supports reading
+	readableStorage, ok := elem.SourceStorage.(storage.StorageReadable)
+	if !ok {
+		return fmt.Errorf("source storage %s does not support reading", elem.SourceStorage.Name())
+	}
+
+	logger.Info("Opening file from source storage")
+	reader, size, err := readableStorage.OpenFile(ctx, elem.SourcePath)
+	if err != nil {
+		return fmt.Errorf("failed to open file: %w", err)
+	}
+	defer reader.Close()
+
+	// Build Telegram storage path: /<chat_id>/<filename>
+	storagePath := fmt.Sprintf("/%d/%s", elem.TargetChatID, elem.FileInfo.Name)
+
+	// 注入文件大小到 context
+	ctx = context.WithValue(ctx, ctxkey.ContentLength, size)
+
+	if config.C().Stream {
+		if err := elem.TargetStorage.Save(ctx, reader, storagePath); err != nil {
+			return fmt.Errorf("failed to upload file to telegram: %w", err)
+		}
+	} else {
+		logger.Info("Downloading to temporary file for ReadSeeker support")
+		tempFile, err := t.downloadToTemp(reader, elem.FileInfo.Name)
+		if err != nil {
+			return fmt.Errorf("failed to download to temp: %w", err)
+		}
+		defer os.Remove(tempFile.Name())
+		defer tempFile.Close()
+
+		if _, err := tempFile.Seek(0, io.SeekStart); err != nil {
+			return fmt.Errorf("failed to seek temp file: %w", err)
+		}
+
+		logger.Infof("Uploading file to Telegram storage (size: %d bytes)", size)
+		if err := elem.TargetStorage.Save(ctx, tempFile, storagePath); err != nil {
+			return fmt.Errorf("failed to upload file to telegram: %w", err)
+		}
+	}
+
+	t.uploaded.Add(size)
+	t.Progress.OnProgress(ctx, t)
+
+	logger.Info("File uploaded successfully")
+	return nil
+}
+
+func (t *Task) downloadToTemp(reader io.Reader, filename string) (*os.File, error) {
+	tempDir := config.C().Temp.BasePath
+	if tempDir == "" {
+		tempDir = os.TempDir()
+	}
+
+	tempFile, err := os.CreateTemp(tempDir, filepath.Base(filename)+"-*.tmp")
+	if err != nil {
+		return nil, fmt.Errorf("failed to create temp file: %w", err)
+	}
+
+	if _, err := io.Copy(tempFile, reader); err != nil {
+		tempFile.Close()
+		os.Remove(tempFile.Name())
+		return nil, fmt.Errorf("failed to copy to temp file: %w", err)
+	}
+
+	return tempFile, nil
+}

core/tasks/batchimport/progress.go

@@ -0,0 +1,244 @@
+package batchimport
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"sync/atomic"
+	"time"
+
+	"github.com/charmbracelet/log"
+	"github.com/gotd/td/telegram/message/entity"
+	"github.com/gotd/td/telegram/message/styling"
+	"github.com/gotd/td/tg"
+	"github.com/krau/SaveAny-Bot/common/i18n"
+	"github.com/krau/SaveAny-Bot/common/i18n/i18nk"
+	"github.com/krau/SaveAny-Bot/common/utils/dlutil"
+	"github.com/krau/SaveAny-Bot/common/utils/tgutil"
+)
+
+type ProgressTracker interface {
+	OnStart(ctx context.Context, info TaskInfo)
+	OnProgress(ctx context.Context, info TaskInfo)
+	OnDone(ctx context.Context, info TaskInfo, err error)
+}
+
+type Progress struct {
+	MessageID         int
+	ChatID            int64
+	start             time.Time
+	lastUpdatePercent atomic.Int32
+}
+
+func NewProgressTracker(messageID int, chatID int64) ProgressTracker {
+	return &Progress{
+		MessageID: messageID,
+		ChatID:    chatID,
+	}
+}
+
+func (p *Progress) OnStart(ctx context.Context, info TaskInfo) {
+	p.start = time.Now()
+	p.lastUpdatePercent.Store(0)
+	log.FromContext(ctx).Debugf("Batch import task progress tracking started for message %d in chat %d", p.MessageID, p.ChatID)
+
+	sizeMB := float64(info.TotalSize()) / (1024 * 1024)
+	statsText := i18n.T(i18nk.BotMsgImportStartStats, map[string]any{
+		"SizeMB":  fmt.Sprintf("%.2f", sizeMB),
+		"Count": info.Count(),
+	})
+
+	entityBuilder := entity.Builder{}
+	if err := styling.Perform(&entityBuilder,
+		styling.Plain(i18n.T(i18nk.BotMsgProgressImportStartPrefix, nil)),
+		styling.Code(statsText),
+	); err != nil {
+		log.FromContext(ctx).Errorf("Failed to build entities: %s", err)
+		return
+	}
+
+	text, entities := entityBuilder.Complete()
+	req := &tg.MessagesEditMessageRequest{
+		ID: p.MessageID,
+	}
+	req.SetMessage(text)
+	req.SetEntities(entities)
+	req.SetReplyMarkup(&tg.ReplyInlineMarkup{
+		Rows: []tg.KeyboardButtonRow{
+			{
+				Buttons: []tg.KeyboardButtonClass{
+					tgutil.BuildCancelButton(info.TaskID()),
+				},
+			},
+		},
+	})
+
+	ext := tgutil.ExtFromContext(ctx)
+	if ext != nil {
+		ext.EditMessage(p.ChatID, req)
+	}
+}
+
+func (p *Progress) OnProgress(ctx context.Context, info TaskInfo) {
+	if !shouldUpdateProgress(info.TotalSize(), info.Uploaded(), int(p.lastUpdatePercent.Load())) {
+		return
+	}
+	percent := int((info.Uploaded() * 100) / info.TotalSize())
+	if p.lastUpdatePercent.Load() == int32(percent) {
+		return
+	}
+	p.lastUpdatePercent.Store(int32(percent))
+
+	log.FromContext(ctx).Debugf("Progress update: %s, %d/%d", info.TaskID(), info.Uploaded(), info.TotalSize())
+
+	entityBuilder := entity.Builder{}
+	var progressText strings.Builder
+
+	progressText.WriteString(i18n.T(i18nk.BotMsgProgressImportProgressPrefix, nil))
+	progressText.WriteString(fmt.Sprintf("%d%%", percent))
+	progressText.WriteString(i18n.T(i18nk.BotMsgProgressImportUploadedPrefix, nil))
+	progressText.WriteString(fmt.Sprintf("%.2f MB / %.2f MB",
+		float64(info.Uploaded())/(1024*1024),
+		float64(info.TotalSize())/(1024*1024)))
+
+	if p.start.Unix() > 0 {
+		elapsed := time.Since(p.start)
+		speed := float64(info.Uploaded()) / elapsed.Seconds()
+		progressText.WriteString(i18n.T(i18nk.BotMsgProgressImportSpeedPrefix, nil))
+		progressText.WriteString(dlutil.FormatSize(int64(speed)) + "/s")
+
+		if info.Uploaded() > 0 {
+			remaining := time.Duration(float64(info.TotalSize()-info.Uploaded()) / speed * float64(time.Second))
+			progressText.WriteString(i18n.T(i18nk.BotMsgProgressImportRemainingTimePrefix, nil))
+			progressText.WriteString(formatDuration(remaining))
+		}
+	}
+
+	processing := info.Processing()
+	if len(processing) > 0 {
+		progressText.WriteString(i18n.T(i18nk.BotMsgProgressImportProcessingPrefix, nil))
+		for i, elem := range processing {
+			if i >= 3 {
+				progressText.WriteString(i18n.T(i18nk.BotMsgProgressImportProcessingMore, map[string]any{"Count": len(processing) - 3}))
+				break
+			}
+			fmt.Fprintf(&progressText, "- %s\n", elem.FileName())
+		}
+	}
+
+	if err := styling.Perform(&entityBuilder,
+		styling.Plain(progressText.String()),
+	); err != nil {
+		log.FromContext(ctx).Errorf("Failed to build entities: %s", err)
+		return
+	}
+
+	text, entities := entityBuilder.Complete()
+	req := &tg.MessagesEditMessageRequest{
+		ID: p.MessageID,
+	}
+	req.SetMessage(text)
+	req.SetEntities(entities)
+	req.SetReplyMarkup(&tg.ReplyInlineMarkup{
+		Rows: []tg.KeyboardButtonRow{
+			{
+				Buttons: []tg.KeyboardButtonClass{
+					tgutil.BuildCancelButton(info.TaskID()),
+				},
+			},
+		},
+	})
+
+	ext := tgutil.ExtFromContext(ctx)
+	if ext != nil {
+		ext.EditMessage(p.ChatID, req)
+	}
+}
+
+func (p *Progress) OnDone(ctx context.Context, info TaskInfo, err error) {
+	log.FromContext(ctx).Debugf("Batch import task progress tracking done for message %d in chat %d", p.MessageID, p.ChatID)
+
+	entityBuilder := entity.Builder{}
+	var resultText strings.Builder
+
+	if err != nil {
+		resultText.WriteString(i18n.T(i18nk.BotMsgProgressImportFailedPrefix, nil))
+		resultText.WriteString(i18n.T(i18nk.BotMsgProgressErrorPrefix, nil))
+		fmt.Fprintf(&resultText, "%v\n", err)
+	} else {
+		resultText.WriteString(i18n.T(i18nk.BotMsgProgressImportSuccessPrefix, nil))
+	}
+
+	elapsed := time.Since(p.start)
+	resultText.WriteString(i18n.T(i18nk.BotMsgProgressImportTotalFilesPrefix, nil))
+	fmt.Fprintf(&resultText, "%d\n", info.Count())
+	resultText.WriteString(i18n.T(i18nk.BotMsgProgressImportTotalSizePrefix, nil))
+	fmt.Fprintf(&resultText, "%.2f MB\n", float64(info.TotalSize())/(1024*1024))
+	resultText.WriteString(i18n.T(i18nk.BotMsgProgressImportUploadedPrefix, nil))
+	fmt.Fprintf(&resultText, "%.2f MB\n", float64(info.Uploaded())/(1024*1024))
+	resultText.WriteString(i18n.T(i18nk.BotMsgProgressImportElapsedTimePrefix, nil))
+	fmt.Fprintf(&resultText, "%s\n", formatDuration(elapsed))
+
+	if elapsed.Seconds() > 0 {
+		avgSpeed := float64(info.Uploaded()) / elapsed.Seconds()
+		resultText.WriteString(i18n.T(i18nk.BotMsgProgressImportAvgSpeedPrefix, nil))
+		fmt.Fprintf(&resultText, "%s/s\n", dlutil.FormatSize(int64(avgSpeed)))
+	}
+
+	failedFiles := info.FailedFiles()
+	if len(failedFiles) > 0 {
+		resultText.WriteString(i18n.T(i18nk.BotMsgProgressImportFailedFilesPrefix, nil))
+		fmt.Fprintf(&resultText, "%d\n", len(failedFiles))
+		for i, name := range failedFiles {
+			if i >= 5 {
+				resultText.WriteString(i18n.T(i18nk.BotMsgProgressImportProcessingMore, map[string]any{"Count": len(failedFiles) - 5}))
+				break
+			}
+			fmt.Fprintf(&resultText, "- %s\n", name)
+		}
+	}
+
+	if err := styling.Perform(&entityBuilder,
+		styling.Plain(resultText.String()),
+	); err != nil {
+		log.FromContext(ctx).Errorf("Failed to build entities: %s", err)
+		return
+	}
+
+	text, entities := entityBuilder.Complete()
+	req := &tg.MessagesEditMessageRequest{
+		ID: p.MessageID,
+	}
+	req.SetMessage(text)
+	req.SetEntities(entities)
+
+	ext := tgutil.ExtFromContext(ctx)
+	if ext != nil {
+		ext.EditMessage(p.ChatID, req)
+	}
+}
+
+func shouldUpdateProgress(total, current int64, lastPercent int) bool {
+	if total == 0 {
+		return false
+	}
+	currentPercent := int((current * 100) / total)
+	return currentPercent > lastPercent && currentPercent%5 == 0
+}
+
+func formatDuration(d time.Duration) string {
+	d = d.Round(time.Second)
+	h := d / time.Hour
+	d -= h * time.Hour
+	m := d / time.Minute
+	d -= m * time.Minute
+	s := d / time.Second
+
+	if h > 0 {
+		return fmt.Sprintf("%dh%dm%ds", h, m, s)
+	}
+	if m > 0 {
+		return fmt.Sprintf("%dm%ds", m, s)
+	}
+	return fmt.Sprintf("%ds", s)
+}

core/tasks/batchimport/task.go

@@ -0,0 +1,97 @@
+package batchimport
+
+import (
+	"context"
+	"fmt"
+	"sync"
+	"sync/atomic"
+
+	"github.com/krau/SaveAny-Bot/core"
+	"github.com/krau/SaveAny-Bot/pkg/enums/tasktype"
+	"github.com/krau/SaveAny-Bot/pkg/storagetypes"
+	"github.com/krau/SaveAny-Bot/storage"
+	"github.com/rs/xid"
+)
+
+var _ core.Executable = (*Task)(nil)
+
+type TaskElement struct {
+	ID            string
+	SourceStorage storage.Storage
+	SourcePath    string
+	FileInfo      storagetypes.FileInfo
+	TargetStorage storage.Storage
+	TargetChatID  int64
+}
+
+type Task struct {
+	ID           string
+	ctx          context.Context
+	elems        []TaskElement
+	Progress     ProgressTracker
+	IgnoreErrors bool
+	uploaded     atomic.Int64
+	totalSize    int64
+	processing   map[string]TaskElementInfo
+	processingMu sync.RWMutex
+	failed       map[string]error
+}
+
+// Title implements core.Executable.
+func (t *Task) Title() string {
+	return fmt.Sprintf("[%s](%d files/%.2fMB)", t.Type(), len(t.elems), float64(t.totalSize)/(1024*1024))
+}
+
+// Type implements core.Executable.
+func (t *Task) Type() tasktype.TaskType {
+	return tasktype.TaskTypeBatchimport
+}
+
+// TaskID implements core.Executable.
+func (t *Task) TaskID() string {
+	return t.ID
+}
+
+func NewTaskElement(
+	sourceStorage storage.Storage,
+	fileInfo storagetypes.FileInfo,
+	targetStorage storage.Storage,
+	targetChatID int64,
+) *TaskElement {
+	id := xid.New().String()
+	return &TaskElement{
+		ID:            id,
+		SourceStorage: sourceStorage,
+		SourcePath:    fileInfo.Path,
+		FileInfo:      fileInfo,
+		TargetStorage: targetStorage,
+		TargetChatID:  targetChatID,
+	}
+}
+
+func NewBatchImportTask(
+	id string,
+	ctx context.Context,
+	elems []TaskElement,
+	progress ProgressTracker,
+	ignoreErrors bool,
+) *Task {
+	task := &Task{
+		ID:       id,
+		ctx:      ctx,
+		elems:    elems,
+		Progress: progress,
+		uploaded: atomic.Int64{},
+		totalSize: func() int64 {
+			var total int64
+			for _, elem := range elems {
+				total += elem.FileInfo.Size
+			}
+			return total
+		}(),
+		processing:   make(map[string]TaskElementInfo),
+		IgnoreErrors: ignoreErrors,
+		failed:       make(map[string]error),
+	}
+	return task
+}

core/tasks/batchimport/taskinfo.go

@@ -0,0 +1,73 @@
+package batchimport
+
+type TaskElementInfo interface {
+	FileName() string
+	FileSize() int64
+	GetSourcePath() string
+	SourceStorageName() string
+}
+
+func (e *TaskElement) FileName() string {
+	return e.FileInfo.Name
+}
+
+func (e *TaskElement) FileSize() int64 {
+	return e.FileInfo.Size
+}
+
+func (e *TaskElement) GetSourcePath() string {
+	return e.SourcePath
+}
+
+func (e *TaskElement) SourceStorageName() string {
+	return e.SourceStorage.Name()
+}
+
+type TaskInfo interface {
+	TaskID() string
+	TotalSize() int64
+	Uploaded() int64
+	Count() int
+	Processing() []TaskElementInfo
+	FailedFiles() []string
+}
+
+func (t *Task) TotalSize() int64 {
+	return t.totalSize
+}
+
+func (t *Task) Uploaded() int64 {
+	return t.uploaded.Load()
+}
+
+func (t *Task) Count() int {
+	return len(t.elems)
+}
+
+func (t *Task) Processing() []TaskElementInfo {
+	t.processingMu.RLock()
+	defer t.processingMu.RUnlock()
+
+	result := make([]TaskElementInfo, 0, len(t.processing))
+	for _, elem := range t.processing {
+		result = append(result, elem)
+	}
+	return result
+}
+
+func (t *Task) FailedFiles() []string {
+	t.processingMu.RLock()
+	defer t.processingMu.RUnlock()
+
+	result := make([]string, 0, len(t.failed))
+	for id := range t.failed {
+		// Find the element by ID
+		for _, elem := range t.elems {
+			if elem.ID == id {
+				result = append(result, elem.FileInfo.Name)
+				break
+			}
+		}
+	}
+	return result
+}

pkg/enums/tasktype/tasktype.go

@@ -1,6 +1,5 @@
 package tasktype
 
-// ENUM(tgfiles,tphpics,parseditem,directlinks,aria2,ytdlp)
-//
 //go:generate go-enum --values --names --flag --nocase
+// ENUM(tgfiles,tphpics,parseditem,directlinks,aria2,ytdlp,batchimport)
 type TaskType string

pkg/enums/tasktype/tasktype_enum.go

@@ -24,6 +24,8 @@ const (
 	TaskTypeAria2 TaskType = "aria2"
 	// TaskTypeYtdlp is a TaskType of type ytdlp.
 	TaskTypeYtdlp TaskType = "ytdlp"
+	// TaskTypeBatchimport is a TaskType of type batchimport.
+	TaskTypeBatchimport TaskType = "batchimport"
 )
 
 var ErrInvalidTaskType = fmt.Errorf("not a valid TaskType, try [%s]", strings.Join(_TaskTypeNames, ", "))
@@ -35,6 +37,7 @@ var _TaskTypeNames = []string{
 	string(TaskTypeDirectlinks),
 	string(TaskTypeAria2),
 	string(TaskTypeYtdlp),
+	string(TaskTypeBatchimport),
 }
 
 // TaskTypeNames returns a list of possible string values of TaskType.
@@ -53,6 +56,7 @@ func TaskTypeValues() []TaskType {
 		TaskTypeDirectlinks,
 		TaskTypeAria2,
 		TaskTypeYtdlp,
+		TaskTypeBatchimport,
 	}
 }
 
@@ -75,6 +79,7 @@ var _TaskTypeValue = map[string]TaskType{
 	"directlinks": TaskTypeDirectlinks,
 	"aria2":       TaskTypeAria2,
 	"ytdlp":       TaskTypeYtdlp,
+	"batchimport": TaskTypeBatchimport,
 }
 
 // ParseTaskType attempts to convert a string to a TaskType.

pkg/storagetypes/fileinfo.go

@@ -0,0 +1,12 @@
+package storagetypes
+
+import "time"
+
+// FileInfo represents file metadata
+type FileInfo struct {
+	Name    string
+	Path    string
+	Size    int64
+	IsDir   bool
+	ModTime time.Time
+}

storage/alist/alist.go

@@ -16,6 +16,7 @@ import (
 	config "github.com/krau/SaveAny-Bot/config/storage"
 	"github.com/krau/SaveAny-Bot/pkg/enums/ctxkey"
 	storenum "github.com/krau/SaveAny-Bot/pkg/enums/storage"
+	"github.com/krau/SaveAny-Bot/pkg/storagetypes"
 )
 
 type Alist struct {
@@ -215,3 +216,156 @@ func (a *Alist) Exists(ctx context.Context, storagePath string) bool {
 func (a *Alist) CannotStream() string {
 	return "Alist does not support chunked transfer encoding"
 }
+
+// ListFiles implements StorageListable interface
+func (a *Alist) ListFiles(ctx context.Context, dirPath string) ([]storagetypes.FileInfo, error) {
+	a.logger.Debugf("Listing files in directory: %s", dirPath)
+
+	reqBody := fsListRequest{
+		Path:     dirPath,
+		Password: "",
+		Page:     1,
+		PerPage:  0, // 0 means all files
+		Refresh:  false,
+	}
+
+	bodyBytes, err := json.Marshal(reqBody)
+	if err != nil {
+		return nil, fmt.Errorf("failed to marshal request body: %w", err)
+	}
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, a.baseURL+"/api/fs/list", bytes.NewBuffer(bodyBytes))
+	if err != nil {
+		return nil, fmt.Errorf("failed to create request: %w", err)
+	}
+	req.Header.Set("Authorization", a.token)
+	req.Header.Set("Content-Type", "application/json")
+
+	resp, err := a.client.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("failed to send request: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("failed to list files: %s", resp.Status)
+	}
+
+	data, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read response body: %w", err)
+	}
+
+	var listResp fsListResponse
+	if err := json.Unmarshal(data, &listResp); err != nil {
+		return nil, fmt.Errorf("failed to unmarshal list response: %w", err)
+	}
+
+	if listResp.Code != http.StatusOK {
+		return nil, fmt.Errorf("failed to list files: %d, %s", listResp.Code, listResp.Message)
+	}
+
+	files := make([]storagetypes.FileInfo, 0, len(listResp.Data.Content))
+	for _, item := range listResp.Data.Content {
+		// Parse modified time; log failures but keep zero value on error.
+		var modTime time.Time
+		if item.Modified != "" {
+			parsedTime, err := time.Parse(time.RFC3339, item.Modified)
+			if err != nil {
+				a.logger.With(
+					"path", path.Join(dirPath, item.Name),
+					"modified_raw", item.Modified,
+				).Warnf("failed to parse modified time for file")
+			} else {
+				modTime = parsedTime
+			}
+		}
+
+		files = append(files, storagetypes.FileInfo{
+			Name:    item.Name,
+			Path:    path.Join(dirPath, item.Name),
+			Size:    item.Size,
+			IsDir:   item.IsDir,
+			ModTime: modTime,
+		})
+	}
+
+	a.logger.Debugf("Found %d files in directory %s", len(files), dirPath)
+	return files, nil
+}
+
+// OpenFile implements StorageReadable interface
+func (a *Alist) OpenFile(ctx context.Context, filePath string) (io.ReadCloser, int64, error) {
+	a.logger.Debugf("Opening file: %s", filePath)
+
+	// First, get file info to get the raw_url
+	reqBody := map[string]any{
+		"path":     filePath,
+		"password": "",
+	}
+
+	bodyBytes, err := json.Marshal(reqBody)
+	if err != nil {
+		return nil, 0, fmt.Errorf("failed to marshal request body: %w", err)
+	}
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, a.baseURL+"/api/fs/get", bytes.NewBuffer(bodyBytes))
+	if err != nil {
+		return nil, 0, fmt.Errorf("failed to create request: %w", err)
+	}
+	req.Header.Set("Authorization", a.token)
+	req.Header.Set("Content-Type", "application/json")
+
+	resp, err := a.client.Do(req)
+	if err != nil {
+		return nil, 0, fmt.Errorf("failed to send request: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, 0, fmt.Errorf("failed to get file info: %s", resp.Status)
+	}
+
+	data, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, 0, fmt.Errorf("failed to read response body: %w", err)
+	}
+
+	var getResp fsGetResponse
+	if err := json.Unmarshal(data, &getResp); err != nil {
+		return nil, 0, fmt.Errorf("failed to unmarshal get response: %w", err)
+	}
+
+	if getResp.Code != http.StatusOK {
+		return nil, 0, fmt.Errorf("failed to get file info: %d, %s", getResp.Code, getResp.Message)
+	}
+
+	if getResp.Data.IsDir {
+		return nil, 0, fmt.Errorf("path is a directory, not a file")
+	}
+
+	// Download the file from raw_url
+	downloadURL := getResp.Data.RawURL
+	if downloadURL == "" {
+		// If no raw_url, construct download URL
+		downloadURL = a.baseURL + "/d" + filePath
+	}
+
+	downloadReq, err := http.NewRequestWithContext(ctx, http.MethodGet, downloadURL, nil)
+	if err != nil {
+		return nil, 0, fmt.Errorf("failed to create download request: %w", err)
+	}
+
+	downloadResp, err := a.client.Do(downloadReq)
+	if err != nil {
+		return nil, 0, fmt.Errorf("failed to download file: %w", err)
+	}
+
+	if downloadResp.StatusCode != http.StatusOK {
+		downloadResp.Body.Close()
+		return nil, 0, fmt.Errorf("failed to download file: %s", downloadResp.Status)
+	}
+
+	a.logger.Debugf("Opened file %s, size: %d bytes", filePath, getResp.Data.Size)
+	return downloadResp.Body, getResp.Data.Size, nil
+}

storage/alist/types.go

@@ -46,4 +46,46 @@ type putResponse struct {
 type fsGetResponse struct {
 	Code    int    `json:"code"`
 	Message string `json:"message"`
+	Data    struct {
+		Name     string `json:"name"`
+		Size     int64  `json:"size"`
+		IsDir    bool   `json:"is_dir"`
+		Modified string `json:"modified"`
+		Created  string `json:"created"`
+		Sign     string `json:"sign"`
+		Thumb    string `json:"thumb"`
+		Type     int    `json:"type"`
+		RawURL   string `json:"raw_url"`
+		Provider string `json:"provider"`
+	} `json:"data"`
+}
+
+type fsListRequest struct {
+	Path     string `json:"path"`
+	Password string `json:"password"`
+	Page     int    `json:"page"`
+	PerPage  int    `json:"per_page"`
+	Refresh  bool   `json:"refresh"`
+}
+
+type fsListResponse struct {
+	Code    int    `json:"code"`
+	Message string `json:"message"`
+	Data    struct {
+		Content []struct {
+			Name     string `json:"name"`
+			Size     int64  `json:"size"`
+			IsDir    bool   `json:"is_dir"`
+			Modified string `json:"modified"`
+			Created  string `json:"created"`
+			Sign     string `json:"sign"`
+			Thumb    string `json:"thumb"`
+			Type     int    `json:"type"`
+		} `json:"content"`
+		Total    int64  `json:"total"`
+		Readme   string `json:"readme"`
+		Header   string `json:"header"`
+		Write    bool   `json:"write"`
+		Provider string `json:"provider"`
+	} `json:"data"`
 }

storage/load.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/charmbracelet/log"
 	"github.com/krau/SaveAny-Bot/config"
+	storenum "github.com/krau/SaveAny-Bot/pkg/enums/storage"
 )
 
 var UserStorages = make(map[int64][]Storage)
@@ -79,3 +80,14 @@ func LoadStorages(ctx context.Context) {
 		UserStorages[int64(user)] = GetUserStorages(ctx, int64(user))
 	}
 }
+
+// GetTelegramStorageByUserID returns the first enabled Telegram storage for the user
+func GetTelegramStorageByUserID(ctx context.Context, chatID int64) (Storage, error) {
+	storages := GetUserStorages(ctx, chatID)
+	for _, stor := range storages {
+		if stor.Type() == storenum.Telegram {
+			return stor, nil
+		}
+	}
+	return nil, fmt.Errorf("no telegram storage found for user %d", chatID)
+}

storage/local/local.go

@@ -12,6 +12,7 @@ import (
 	"github.com/duke-git/lancet/v2/fileutil"
 	config "github.com/krau/SaveAny-Bot/config/storage"
 	storenum "github.com/krau/SaveAny-Bot/pkg/enums/storage"
+	"github.com/krau/SaveAny-Bot/pkg/storagetypes"
 )
 
 type Local struct {
@@ -81,3 +82,51 @@ func (l *Local) Exists(ctx context.Context, storagePath string) bool {
 	}
 	return fileutil.IsExist(absPath)
 }
+
+// ListFiles implements StorageListable interface
+func (l *Local) ListFiles(ctx context.Context, dirPath string) ([]storagetypes.FileInfo, error) {
+	absPath := l.JoinStoragePath(dirPath)
+	
+	entries, err := os.ReadDir(absPath)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read directory %s: %w", absPath, err)
+	}
+	
+	files := make([]storagetypes.FileInfo, 0, len(entries))
+	for _, entry := range entries {
+		info, err := entry.Info()
+		if err != nil {
+			l.logger.Warnf("Failed to get file info for %s: %v", entry.Name(), err)
+			continue
+		}
+		
+		filePath := filepath.Join(dirPath, entry.Name())
+		files = append(files, storagetypes.FileInfo{
+			Name:    entry.Name(),
+			Path:    filePath,
+			Size:    info.Size(),
+			IsDir:   entry.IsDir(),
+			ModTime: info.ModTime(),
+		})
+	}
+	
+	return files, nil
+}
+
+// OpenFile implements StorageReadable interface
+func (l *Local) OpenFile(ctx context.Context, filePath string) (io.ReadCloser, int64, error) {
+	absPath := l.JoinStoragePath(filePath)
+	
+	file, err := os.Open(absPath)
+	if err != nil {
+		return nil, 0, fmt.Errorf("failed to open file %s: %w", absPath, err)
+	}
+	
+	stat, err := file.Stat()
+	if err != nil {
+		file.Close()
+		return nil, 0, fmt.Errorf("failed to stat file %s: %w", absPath, err)
+	}
+	
+	return file, stat.Size(), nil
+}

storage/storage.go

@@ -7,6 +7,7 @@ import (
 
 	storcfg "github.com/krau/SaveAny-Bot/config/storage"
 	storenum "github.com/krau/SaveAny-Bot/pkg/enums/storage"
+	"github.com/krau/SaveAny-Bot/pkg/storagetypes"
 	"github.com/krau/SaveAny-Bot/storage/alist"
 	"github.com/krau/SaveAny-Bot/storage/local"
 	"github.com/krau/SaveAny-Bot/storage/minio"
@@ -30,6 +31,18 @@ type StorageCannotStream interface {
 	CannotStream() string
 }
 
+// StorageListable 表示支持列举目录内容的存储
+type StorageListable interface {
+	Storage
+	ListFiles(ctx context.Context, dirPath string) ([]storagetypes.FileInfo, error)
+}
+
+// StorageReadable 表示支持读取文件内容的存储
+type StorageReadable interface {
+	Storage
+	OpenFile(ctx context.Context, filePath string) (io.ReadCloser, int64, error)
+}
+
 var Storages = make(map[string]Storage)
 
 type StorageConstructor func() Storage

storage/telegram/split.go

@@ -99,12 +99,6 @@ func (w *splitWriter) finalize() error {
 }
 
 func CreateSplitZip(ctx context.Context, reader io.Reader, size int64, fileName, outputBase string, partSize int64) error {
-	// seek the reader if possible
-	if rs, ok := reader.(io.ReadSeeker); ok {
-		if _, err := rs.Seek(0, io.SeekStart); err != nil {
-			return fmt.Errorf("failed to seek reader: %w", err)
-		}
-	}
 	outputDir := filepath.Dir(outputBase)
 	if err := os.MkdirAll(outputDir, os.ModePerm); err != nil {
 		return fmt.Errorf("failed to create output directory: %w", err)

storage/telegram/telegram.go

@@ -92,9 +92,6 @@ func (t *Telegram) Save(ctx context.Context, r io.Reader, storagePath string) er
 		return nil
 	}
 	rs, seekable := r.(io.ReadSeeker)
-	if !seekable || rs == nil {
-		return fmt.Errorf("reader must implement io.ReadSeeker")
-	}
 	splitSize := t.config.SplitSizeMB * 1024 * 1024
 	if splitSize <= 0 {
 		splitSize = DefaultSplitSize
@@ -123,88 +120,96 @@ func (t *Telegram) Save(ctx context.Context, r io.Reader, storagePath string) er
 		}
 		chatID = cid
 	}
-	mtype, err := mimetype.DetectReader(rs)
-	if err != nil {
-		return fmt.Errorf("failed to detect mimetype: %w", err)
-	}
-	if filename == "" {
-		filename = xid.New().String() + mtype.Extension()
-	}
+	upler := uploader.NewUploader(tctx.Raw).
+		WithPartSize(tglimit.MaxUploadPartSize).
+		WithThreads(dlutil.BestThreads(size, config.C().Threads))
 	peer := tryGetInputPeer(tctx, chatID)
 	if peer == nil || peer.Zero() {
 		return fmt.Errorf("failed to get input peer for chat ID %d", chatID)
 	}
+	var mtype *mimetype.MIME
+	if seekable {
+		var err error
+		mtype, err = mimetype.DetectReader(rs)
+		if err != nil {
+			return fmt.Errorf("failed to detect mimetype: %w", err)
+		}
+		if filename == "" {
+			filename = xid.New().String() + mtype.Extension()
+		}
 
-	if _, err := rs.Seek(0, io.SeekStart); err != nil {
-		return fmt.Errorf("failed to seek reader: %w", err)
+		if _, err := rs.Seek(0, io.SeekStart); err != nil {
+			return fmt.Errorf("failed to seek reader: %w", err)
+		}
 	}
-	upler := uploader.NewUploader(tctx.Raw).
-		WithPartSize(tglimit.MaxUploadPartSize).
-		WithThreads(dlutil.BestThreads(size, config.C().Threads))
 	if size > splitSize {
 		// large file, use split uploader
-		return t.splitUpload(tctx, rs, filename, upler, peer, size, splitSize)
+		return t.splitUpload(tctx, r, filename, upler, peer, size, splitSize)
 	}
 
 	var file tg.InputFileClass
-	if size < 0 {
-		file, err = upler.FromReader(ctx, filename, rs)
+	var err error
+	if size <= 0 {
+		file, err = upler.FromReader(ctx, filename, r)
 	} else {
-		file, err = upler.Upload(ctx, uploader.NewUpload(filename, rs, size))
+		file, err = upler.Upload(ctx, uploader.NewUpload(filename, r, size))
 	}
 	if err != nil {
 		return fmt.Errorf("failed to upload file to telegram: %w", err)
 	}
 	caption := styling.Plain(filename)
 	forceFile := t.config.ForceFile
-	if strings.HasPrefix(mtype.String(), "image/") && size >= tglimit.MaxPhotoSize {
+
+	if mtype != nil && strings.HasPrefix(mtype.String(), "image/") && size >= tglimit.MaxPhotoSize {
 		forceFile = true
 	}
 	doc := message.UploadedDocument(file, caption).
 		Filename(filename).
-		ForceFile(forceFile).
-		MIME(mtype.String())
-
+		ForceFile(forceFile)
+	if mtype != nil {
+		doc = doc.MIME(mtype.String())
+	}
 	var media message.MediaOption = doc
-
-	switch mtypeStr := mtype.String(); {
-	case strings.HasPrefix(mtypeStr, "video/"):
-		media = doc.Video().SupportsStreaming()
-		thumb, err := extractThumbFrame(rs)
-		if err == nil {
-			thumb, err := upler.FromBytes(ctx, "thumb.jpg", thumb)
+	if mtype != nil && rs != nil {
+		switch mtypeStr := mtype.String(); {
+		case strings.HasPrefix(mtypeStr, "video/"):
+			media = doc.Video().SupportsStreaming()
+			thumb, err := extractThumbFrame(rs)
 			if err == nil {
-				doc = doc.Thumb(thumb)
+				thumb, err := upler.FromBytes(ctx, "thumb.jpg", thumb)
+				if err == nil {
+					doc = doc.Thumb(thumb)
+				}
 			}
+			rs.Seek(0, io.SeekStart)
+			switch mtypeStr {
+			case "video/mp4":
+				info, err := getMP4Meta(rs)
+				if err != nil {
+					// Fallback to ffprobe if gomedia fails (e.g., malformed MP4)
+					rs.Seek(0, io.SeekStart)
+					info, err = getVideoMetadata(rs)
+				}
+				if err == nil {
+					media = doc.Video().
+						Duration(time.Duration(info.Duration)*time.Second).
+						Resolution(info.Width, info.Height).
+						SupportsStreaming()
+				}
+			default:
+				info, err := getVideoMetadata(rs)
+				if err == nil {
+					media = doc.Video().
+						Duration(time.Duration(info.Duration)*time.Second).
+						Resolution(info.Width, info.Height).
+						SupportsStreaming()
+				}
+			}
+		case strings.HasPrefix(mtypeStr, "audio/"):
+			media = doc.Audio().Title(filename)
+		case strings.HasPrefix(mtypeStr, "image/") && !strings.HasSuffix(mtypeStr, "webp"):
+			media = message.UploadedPhoto(file, caption)
 		}
-		rs.Seek(0, io.SeekStart)
-		switch mtypeStr {
-		case "video/mp4":
-			info, err := getMP4Meta(rs)
-			if err != nil {
-				// Fallback to ffprobe if gomedia fails (e.g., malformed MP4)
-				rs.Seek(0, io.SeekStart)
-				info, err = getVideoMetadata(rs)
-			}
-			if err == nil {
-				media = doc.Video().
-					Duration(time.Duration(info.Duration)*time.Second).
-					Resolution(info.Width, info.Height).
-					SupportsStreaming()
-			}
-		default:
-			info, err := getVideoMetadata(rs)
-			if err == nil {
-				media = doc.Video().
-					Duration(time.Duration(info.Duration)*time.Second).
-					Resolution(info.Width, info.Height).
-					SupportsStreaming()
-			}
-		}
-	case strings.HasPrefix(mtypeStr, "audio/"):
-		media = doc.Audio().Title(filename)
-	case strings.HasPrefix(mtypeStr, "image/") && !strings.HasSuffix(mtypeStr, "webp"):
-		media = message.UploadedPhoto(file, caption)
 	}
 	sender := tctx.Sender
 	_, err = sender.WithUploader(upler).To(peer).Media(ctx, media)
@@ -215,7 +220,7 @@ func (t *Telegram) CannotStream() string {
 	return "Telegram storage must use a ReaderSeeker"
 }
 
-func (t *Telegram) splitUpload(ctx *ext.Context, rs io.ReadSeeker, filename string, upler *uploader.Uploader, peer tg.InputPeerClass, fileSize, splitSize int64) error {
+func (t *Telegram) splitUpload(ctx *ext.Context, r io.Reader, filename string, upler *uploader.Uploader, peer tg.InputPeerClass, fileSize, splitSize int64) error {
 	tempId := xid.New().String()
 	outputBase := filepath.Join(config.C().Temp.BasePath, tempId, strings.Split(filename, ".")[0])
 	defer func() {
@@ -224,7 +229,7 @@ func (t *Telegram) splitUpload(ctx *ext.Context, rs io.ReadSeeker, filename stri
 			log.FromContext(ctx).Warnf("Failed to cleanup temp split files: %s", err)
 		}
 	}()
-	if err := CreateSplitZip(ctx, rs, fileSize, filename, outputBase, splitSize); err != nil {
+	if err := CreateSplitZip(ctx, r, fileSize, filename, outputBase, splitSize); err != nil {
 		return fmt.Errorf("failed to create split zip: %w", err)
 	}
 	matched, err := filepath.Glob(outputBase + ".z*")

storage/webdav/client.go

@@ -2,6 +2,7 @@ package webdav
 
 import (
 	"context"
+	"encoding/xml"
 	"fmt"
 	"io"
 	"net/http"
@@ -25,8 +26,40 @@ const (
 	WebdavMethodMkcol    WebdavMethod = "MKCOL"
 	WebdavMethodPropfind WebdavMethod = "PROPFIND"
 	WebdavMethodPut      WebdavMethod = "PUT"
+	WebdavMethodGet      WebdavMethod = "GET"
 )
 
+// WebDAV XML structures for PROPFIND response
+type Multistatus struct {
+	XMLName   xml.Name   `xml:"multistatus"`
+	Responses []Response `xml:"response"`
+}
+
+type Response struct {
+	Href     string   `xml:"href"`
+	Propstat Propstat `xml:"propstat"`
+}
+
+type Propstat struct {
+	Prop Prop   `xml:"prop"`
+	Status string `xml:"status"`
+}
+
+type Prop struct {
+	ResourceType  ResourceType `xml:"resourcetype"`
+	GetContentLength int64     `xml:"getcontentlength"`
+	GetLastModified  string    `xml:"getlastmodified"`
+	DisplayName      string    `xml:"displayname"`
+}
+
+type ResourceType struct {
+	Collection *struct{} `xml:"collection"`
+}
+
+func (rt ResourceType) IsCollection() bool {
+	return rt.Collection != nil
+}
+
 func NewClient(baseURL, username, password string, httpClient *http.Client) *Client {
 	if !strings.HasSuffix(baseURL, "/") {
 		baseURL += "/"
@@ -131,5 +164,79 @@ func (c *Client) WriteFile(ctx context.Context, remotePath string, content io.Re
 		return nil
 	}
 	return fmt.Errorf("PUT: %s", resp.Status)
-
+}
+
+// ListDir lists files and directories in the given path
+func (c *Client) ListDir(ctx context.Context, dirPath string) ([]Response, error) {
+	dirPath = strings.Trim(dirPath, "/")
+	u, err := url.Parse(c.BaseURL)
+	if err != nil {
+		return nil, err
+	}
+	u.Path = path.Join(u.Path, dirPath)
+	if !strings.HasSuffix(u.Path, "/") {
+		u.Path += "/"
+	}
+
+	resp, err := c.doRequest(ctx, WebdavMethodPropfind, u.String(), nil)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusMultiStatus {
+		return nil, fmt.Errorf("PROPFIND: %s", resp.Status)
+	}
+
+	var multistatus Multistatus
+	if err := xml.NewDecoder(resp.Body).Decode(&multistatus); err != nil {
+		return nil, fmt.Errorf("failed to decode PROPFIND response: %w", err)
+	}
+
+	// Filter out the directory itself from results
+	var results []Response
+	basePath := u.Path
+	for _, r := range multistatus.Responses {
+		decodedHref, err := url.PathUnescape(r.Href)
+		if err != nil {
+			decodedHref = r.Href
+		}
+		// Skip the directory itself
+		if strings.TrimSuffix(decodedHref, "/") == strings.TrimSuffix(basePath, "/") {
+			continue
+		}
+		results = append(results, r)
+	}
+
+	return results, nil
+}
+
+// ReadFile downloads a file and returns a ReadCloser
+func (c *Client) ReadFile(ctx context.Context, filePath string) (io.ReadCloser, int64, error) {
+	filePath = strings.Trim(filePath, "/")
+	u, err := url.Parse(c.BaseURL)
+	if err != nil {
+		return nil, 0, err
+	}
+	u.Path = path.Join(u.Path, filePath)
+
+	req, err := http.NewRequestWithContext(ctx, "GET", u.String(), nil)
+	if err != nil {
+		return nil, 0, err
+	}
+	if c.Username != "" && c.Password != "" {
+		req.SetBasicAuth(c.Username, c.Password)
+	}
+
+	resp, err := c.httpClient.Do(req)
+	if err != nil {
+		return nil, 0, err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		resp.Body.Close()
+		return nil, 0, fmt.Errorf("GET: %s", resp.Status)
+	}
+
+	return resp.Body, resp.ContentLength, nil
 }

storage/webdav/webdav.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"net/url"
 	"path"
 	"strings"
 	"time"
@@ -12,6 +13,7 @@ import (
 	"github.com/charmbracelet/log"
 	config "github.com/krau/SaveAny-Bot/config/storage"
 	storenum "github.com/krau/SaveAny-Bot/pkg/enums/storage"
+	"github.com/krau/SaveAny-Bot/pkg/storagetypes"
 	"github.com/rs/xid"
 )
 
@@ -84,3 +86,77 @@ func (w *Webdav) Exists(ctx context.Context, storagePath string) bool {
 	}
 	return exists
 }
+
+// ListFiles implements storage.StorageListable
+func (w *Webdav) ListFiles(ctx context.Context, dirPath string) ([]storagetypes.FileInfo, error) {
+	w.logger.Infof("Listing files in %s", dirPath)
+	
+	// Join with base path
+	fullPath := path.Join(w.config.BasePath, dirPath)
+	
+	responses, err := w.client.ListDir(ctx, fullPath)
+	if err != nil {
+		w.logger.Errorf("Failed to list directory %s: %v", fullPath, err)
+		return nil, fmt.Errorf("failed to list directory: %w", err)
+	}
+
+	files := make([]storagetypes.FileInfo, 0, len(responses))
+	for _, resp := range responses {
+		// Parse the href to get the file name
+		decodedHref, err := url.PathUnescape(resp.Href)
+		if err != nil {
+			w.logger.Warnf("Failed to unescape href %q: %v; using original value", resp.Href, err)
+			decodedHref = resp.Href
+		}
+		
+		// Extract filename from href
+		name := path.Base(strings.TrimSuffix(decodedHref, "/"))
+		if name == "" || name == "." {
+			continue
+		}
+
+		// Parse modification time
+		var modTime time.Time
+		if resp.Propstat.Prop.GetLastModified != "" {
+			// Try RFC1123 format (standard for WebDAV)
+			parsedTime, err := time.Parse(time.RFC1123, resp.Propstat.Prop.GetLastModified)
+			if err != nil {
+				w.logger.Warnf("Failed to parse last modified time %q for %s: %v", resp.Propstat.Prop.GetLastModified, decodedHref, err)
+			} else {
+				modTime = parsedTime
+			}
+		}
+
+		isDir := resp.Propstat.Prop.ResourceType.IsCollection()
+		
+		fileInfo := storagetypes.FileInfo{
+			Name:    name,
+			Path:    strings.TrimPrefix(decodedHref, w.config.BasePath),
+			Size:    resp.Propstat.Prop.GetContentLength,
+			IsDir:   isDir,
+			ModTime: modTime,
+		}
+		
+		files = append(files, fileInfo)
+	}
+
+	w.logger.Debugf("Found %d files/directories in %s", len(files), dirPath)
+	return files, nil
+}
+
+// OpenFile implements storage.StorageReadable
+func (w *Webdav) OpenFile(ctx context.Context, filePath string) (io.ReadCloser, int64, error) {
+	w.logger.Infof("Opening file %s", filePath)
+	
+	// Join with base path
+	fullPath := path.Join(w.config.BasePath, filePath)
+	
+	reader, size, err := w.client.ReadFile(ctx, fullPath)
+	if err != nil {
+		w.logger.Errorf("Failed to open file %s: %v", fullPath, err)
+		return nil, 0, fmt.Errorf("failed to open file: %w", err)
+	}
+
+	w.logger.Debugf("Opened file %s (size: %d bytes)", filePath, size)
+	return reader, size, nil
+}