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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "log/slog" | ||
| "os" | ||
| "path" | ||
| "strings" | ||
| "time" | ||
|
|
||
| "github.com/moolite/bot/internal/db" | ||
| "github.com/moolite/bot/internal/telegram" | ||
| ) | ||
|
|
||
| const ( | ||
| FILE_DOWNLOAD_OK = iota | ||
| FILE_DOWNLOAD_ERR | ||
| ) | ||
|
|
||
| func fileDownloaderWorker(workerId int, filenames <-chan []string) { | ||
| for file := range filenames { | ||
| fileId := file[0] | ||
| filename := file[1] | ||
|
|
||
| if err := telegram.DownloadFileId(Cfg, fileId, filename); err != nil { | ||
| slog.Error("File failed to download", "workerId", workerId, "fileId", fileId, "filename", filename, "err", err) | ||
| } else { | ||
| slog.Info("downloaded file", "workerId", workerId, "filename", filename) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func SyncFolder(folder string) error { | ||
| ctx := context.Background() | ||
| dbResults, err := db.SelectAllMedia(ctx) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| slog.Debug("synchronizing files", "files", len(dbResults), "folder", folder) | ||
|
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| fileList, err := os.ReadDir(folder) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
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| var fileIds [][]string | ||
| for _, res := range dbResults { | ||
| skip := false | ||
| for _, f := range fileList { | ||
| skip = strings.Contains(f.Name(), res.Data) | ||
| } | ||
|
|
||
| if !skip { | ||
| fileExtension := "jpg" | ||
| if res.Kind != "photo" { | ||
| fileExtension = "m4v" | ||
| } | ||
| filename := path.Join(folder, res.Data+"."+fileExtension) | ||
| fileIds = append(fileIds, []string{res.Data, filename}) | ||
| } | ||
| } | ||
|
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| slog.Debug("files to download", "files", len(fileIds)) | ||
|
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| limiter := time.Tick(100 * time.Millisecond) | ||
| jobs := make(chan []string, len(fileList)) | ||
| for w := 1; w <= 5; w++ { | ||
| go fileDownloaderWorker(w, jobs) | ||
| } | ||
|
|
||
| for _, job := range fileIds { | ||
| jobs <- job | ||
| <-limiter | ||
| } | ||
| close(jobs) | ||
|
|
||
| return nil | ||
| } |
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Learn more about bidirectional Unicode characters
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| package telegram | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "io" | ||
| "log/slog" | ||
| "net/http" | ||
| "os" | ||
|
|
||
| "github.com/moolite/bot/internal/config" | ||
| "github.com/valyala/fastjson" | ||
| ) | ||
|
|
||
| var ( | ||
| tgBaseFileApi string = "https://api.telegram.org/file/bot" | ||
| ) | ||
|
|
||
| func GetLink(cfg *config.Config, id string) (string, error) { | ||
| body := map[string]string{ | ||
| "file_id": id, | ||
| } | ||
|
|
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| bodyJson, err := json.Marshal(body) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
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| resp, err := apiRequest(cfg.Telegram.Token, "getFile", bodyJson) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
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| slog.Debug("api request result", "json", string(resp)) | ||
|
|
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| p, err := fastjson.ParseBytes(resp) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
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| if ok := p.GetBool("ok"); ok != true { | ||
| return "", fmt.Errorf("error while fetching result: %s", resp) | ||
| } | ||
|
|
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| fileId := string(p.GetStringBytes("result", "file_path")) | ||
| if fileId == "" { | ||
| return "", fmt.Errorf("file_path not found in json") | ||
| } | ||
|
|
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| return tgBaseFileApi + cfg.Telegram.Token + "/" + fileId, nil | ||
| } | ||
|
|
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| func DownloadFileId(cfg *config.Config, id, filename string) error { | ||
| uri, err := GetLink(cfg, id) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
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| resp, err := http.Get(uri) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer resp.Body.Close() | ||
|
|
||
| if resp.StatusCode == 404 { | ||
| return fmt.Errorf("404 file not found.") | ||
| } | ||
|
|
||
| if resp.StatusCode > 201 { | ||
| return fmt.Errorf("error downloading file. StatusCode %d", resp.StatusCode) | ||
| } | ||
|
|
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| fd, err := os.Create(filename) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer fd.Close() | ||
|
|
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| if _, err := io.Copy(fd, resp.Body); err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| } |