feat(oo): kontoblatt bulk tools, oo dav, update, retry (#22)

cmd/ooscan/main.go

@@ -0,0 +1,50 @@
+// Command ooscan recursively lists OnlyOffice Documents folders into a TSV
+// index: file_id, folder_id, path, title.
+//
+// Usage: ooscan <FOLDER_ID> [<FOLDER_ID>...]
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"time"
+
+	onlyoffice "github.com/eslider/go-onlyoffice"
+)
+
+func main() {
+	ctx := context.Background()
+	c := onlyoffice.NewClient(onlyoffice.GetEnvironmentCredentials())
+	seen := map[string]bool{}
+	for _, root := range os.Args[1:] {
+		walk(ctx, c, root, "", 0, seen)
+	}
+}
+
+func walk(ctx context.Context, c *onlyoffice.Client, folderID, path string, depth int, seen map[string]bool) {
+	if depth > 8 || seen[folderID] {
+		return
+	}
+	seen[folderID] = true
+	// Throttle: OnlyOffice rate-limits (429) and the host must not be flooded.
+	time.Sleep(350 * time.Millisecond)
+	ctx, cancel := context.WithTimeout(ctx, 60*time.Second)
+	defer cancel()
+	var l *onlyoffice.DavListing
+	derr := onlyoffice.DoRetry(ctx, onlyoffice.DefaultRetryPolicy(), func() error {
+		var err error
+		l, err = c.ListDavFolder(ctx, folderID)
+		return err
+	})
+	if derr != nil {
+		fmt.Fprintf(os.Stderr, "list %s (%s): %v\n", path, folderID, derr)
+		return
+	}
+	for _, f := range l.Files {
+		fmt.Printf("%s\t%s\t%s\t%s\n", f.ID, folderID, path, f.Title)
+	}
+	for _, sub := range l.Folders {
+		walk(ctx, c, sub.ID, path+"/"+sub.Title, depth+1, seen)
+	}
+}