feat: add support for lark driver (#6475)

* feat: lark storage driver

* feat: external view mode

* limit lark targets

* fix: missing package

---------

Co-authored-by: Andy Hsu <i@nn.ci>

drivers/lark/util.go

@@ -0,0 +1,66 @@
+package lark
+
+import (
+	"context"
+	"github.com/Xhofe/go-cache"
+	larkdrive "github.com/larksuite/oapi-sdk-go/v3/service/drive/v1"
+	log "github.com/sirupsen/logrus"
+	"path"
+	"time"
+)
+
+const objTokenCacheDuration = 5 * time.Minute
+const emptyFolderToken = "empty"
+
+var objTokenCache = cache.NewMemCache[string]()
+var exOpts = cache.WithEx[string](objTokenCacheDuration)
+
+func (c *Lark) getObjToken(ctx context.Context, folderPath string) (string, bool) {
+	if token, ok := objTokenCache.Get(folderPath); ok {
+		return token, true
+	}
+
+	dir, name := path.Split(folderPath)
+	// strip the last slash of dir if it exists
+	if len(dir) > 0 && dir[len(dir)-1] == '/' {
+		dir = dir[:len(dir)-1]
+	}
+	if name == "" {
+		return c.rootFolderToken, true
+	}
+
+	var parentToken string
+	var found bool
+	parentToken, found = c.getObjToken(ctx, dir)
+	if !found {
+		return emptyFolderToken, false
+	}
+
+	req := larkdrive.NewListFileReqBuilder().FolderToken(parentToken).Build()
+	resp, err := c.client.Drive.File.ListByIterator(ctx, req)
+
+	if err != nil {
+		log.WithError(err).Error("failed to list files")
+		return emptyFolderToken, false
+	}
+
+	var file *larkdrive.File
+	for {
+		found, file, err = resp.Next()
+		if !found {
+			break
+		}
+
+		if err != nil {
+			log.WithError(err).Error("failed to get next file")
+			break
+		}
+
+		if *file.Name == name {
+			objTokenCache.Set(folderPath, *file.Token, exOpts)
+			return *file.Token, true
+		}
+	}
+
+	return emptyFolderToken, false
+}