Add support for Dropbox team folders with path-root header

cmd/ls.go

@@ -115,25 +115,29 @@ func ls(cmd *cobra.Command, args []string) (err error) {
 
 	dbx := files.New(config)
 
-	// check if given object exists
-	var metaRes files.IsMetadata
-	metaRes, err = getFileMetadata(dbx, path)
-	if err != nil {
-		return err
-	}
-
 	if long {
 		fmt.Fprint(w, "Revision\tSize\tLast modified\tPath\n")
 	}
 
-	// handle case when path to file was given
-	switch f := metaRes.(type) {
-	case *files.FileMetadata:
-		if !onlyDeleted {
-			printItem(formatFileMetadata(f, long))
-			err = w.Flush()
+	// Check whether the path exists and is a file rather than a folder.
+	// Skip this for the root path ("") since get_metadata returns an error for
+	// it ("The root folder is unsupported") and the root is always a folder.
+	if path != "" {
+		var metaRes files.IsMetadata
+		metaRes, err = getFileMetadata(dbx, path)
+		if err != nil {
 			return err
 		}
+
+		// handle case when path to file was given
+		switch f := metaRes.(type) {
+		case *files.FileMetadata:
+			if !onlyDeleted {
+				printItem(formatFileMetadata(f, long))
+				err = w.Flush()
+				return err
+			}
+		}
 	}
 
 	res, err := dbx.ListFolder(arg)

cmd/root.go

@@ -26,7 +26,9 @@ import (
 	"golang.org/x/oauth2"
 
 	"github.com/dropbox/dropbox-sdk-go-unofficial/v6/dropbox"
+	"github.com/dropbox/dropbox-sdk-go-unofficial/v6/dropbox/common"
 	"github.com/dropbox/dropbox-sdk-go-unofficial/v6/dropbox/files"
+	"github.com/dropbox/dropbox-sdk-go-unofficial/v6/dropbox/users"
 	"github.com/mitchellh/go-homedir"
 	"github.com/spf13/cobra"
 	"golang.org/x/net/context"
@@ -197,6 +199,7 @@ func initDbx(cmd *cobra.Command, args []string) (err error) {
 	if verbose {
 		logLevel = dropbox.LogInfo
 	}
+
 	config = dropbox.Config{
 		Token:           tokens[tokType],
 		LogLevel:        logLevel,
@@ -208,6 +211,31 @@ func initDbx(cmd *cobra.Command, args []string) (err error) {
 		URLGenerator:    nil,
 	}
 
+	// Auto-detect the root namespace so that team folders are accessible.
+	// Team manage tokens are for administrative operations and don't need
+	// a path root; skip auto-detection for those.
+	if tokType != tokenTeamManage {
+		usersClient := users.New(config)
+		account, accountErr := usersClient.GetCurrentAccount()
+		if accountErr != nil {
+			config.LogInfo("Warning: could not auto-detect root namespace (%v); team folders may not be accessible", accountErr)
+		} else {
+			var rootNamespaceID string
+			switch ri := account.RootInfo.(type) {
+			case *common.TeamRootInfo:
+				rootNamespaceID = ri.RootNamespaceId
+			case *common.UserRootInfo:
+				rootNamespaceID = ri.RootNamespaceId
+			}
+			if rootNamespaceID != "" {
+				pathRootHeader := fmt.Sprintf(`{".tag": "root", "root": "%s"}`, rootNamespaceID)
+				config.HeaderGenerator = func(_, _, _, _ string) map[string]string {
+					return map[string]string{"Dropbox-API-Path-Root": pathRootHeader}
+				}
+			}
+		}
+	}
+
 	return
 }