PLT-7025: Fix Slack Import API. (#6905)

api4/team.go

@@ -5,7 +5,7 @@ package api4
 
 import (
 	"bytes"
-	"io"
+	"encoding/base64"
 	"net/http"
 	"strconv"
 
@@ -657,12 +657,12 @@ func importTeam(c *Context, w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	w.Header().Set("Content-Disposition", "attachment; filename=MattermostImportLog.txt")
-	w.Header().Set("Content-Type", "application/octet-stream")
+	data := map[string]string{}
+	data["results"] = base64.StdEncoding.EncodeToString([]byte(log.Bytes()))
 	if c.Err != nil {
 		w.WriteHeader(c.Err.StatusCode)
 	}
-	io.Copy(w, bytes.NewReader(log.Bytes()))
+	w.Write([]byte(model.MapToJson(data)))
 }
 
 func inviteUsersToTeam(c *Context, w http.ResponseWriter, r *http.Request) {

api4/team_test.go

@@ -15,6 +15,7 @@ import (
 	"github.com/mattermost/platform/app"
 	"github.com/mattermost/platform/model"
 	"github.com/mattermost/platform/utils"
+	"encoding/base64"
 )
 
 func TestCreateTeam(t *testing.T) {
@@ -1345,7 +1346,12 @@ func TestImportTeam(t *testing.T) {
 		fileResp, resp := th.SystemAdminClient.ImportTeam(data, binary.Size(data), "slack", "Fake_Team_Import.zip", th.BasicTeam.Id)
 		CheckNoError(t, resp)
 
-		fileReturned := fmt.Sprintf("%s", fileResp)
+		fileData, err := base64.StdEncoding.DecodeString(fileResp["results"])
+		if err != nil {
+			t.Fatal("failed to decode base64 results data")
+		}
+
+		fileReturned := fmt.Sprintf("%s", fileData)
 		if !strings.Contains(fileReturned, "darth.vader@stardeath.com") {
 			t.Log(fileReturned)
 			t.Fatal("failed to report the user was imported")

model/client4.go

@@ -352,7 +352,7 @@ func (c *Client4) DoEmojiUploadFile(url string, data []byte, contentType string)
 	}
 }
 
-func (c *Client4) DoUploadImportTeam(url string, data []byte, contentType string) ([]byte, *Response) {
+func (c *Client4) DoUploadImportTeam(url string, data []byte, contentType string) (map[string]string, *Response) {
 	rq, _ := http.NewRequest("POST", c.ApiUrl+url, bytes.NewReader(data))
 	rq.Header.Set("Content-Type", contentType)
 	rq.Close = true
@@ -365,11 +365,9 @@ func (c *Client4) DoUploadImportTeam(url string, data []byte, contentType string
 		return nil, &Response{Error: NewAppError(url, "model.client.connecting.app_error", nil, err.Error(), 0)}
 	} else if rp.StatusCode >= 300 {
 		return nil, &Response{StatusCode: rp.StatusCode, Error: AppErrorFromJson(rp.Body)}
-	} else if data, err := ioutil.ReadAll(rp.Body); err != nil {
-		return nil, &Response{StatusCode: rp.StatusCode, Error: NewAppError("UploadImportTeam", "model.client.read_file.app_error", nil, err.Error(), rp.StatusCode)}
 	} else {
 		defer closeBody(rp)
-		return data, BuildResponse(rp)
+		return MapFromJson(rp.Body), BuildResponse(rp)
 	}
 }
 
@@ -1210,7 +1208,7 @@ func (c *Client4) GetTeamUnread(teamId, userId string) (*TeamUnread, *Response)
 }
 
 // ImportTeam will import an exported team from other app into a existing team.
-func (c *Client4) ImportTeam(data []byte, filesize int, importFrom, filename, teamId string) ([]byte, *Response) {
+func (c *Client4) ImportTeam(data []byte, filesize int, importFrom, filename, teamId string) (map[string]string, *Response) {
 	body := &bytes.Buffer{}
 	writer := multipart.NewWriter(body)
 

webapp/components/team_import_tab.jsx

@@ -29,12 +29,12 @@ class TeamImportTab extends React.Component {
         };
     }
 
-    onImportFailure(e, err, res) {
-        this.setState({status: 'fail', link: 'data:application/octet-stream;charset=utf-8,' + encodeURIComponent(res.text)});
+    onImportFailure() {
+        this.setState({status: 'fail'});
     }
 
-    onImportSuccess(data, res) {
-        this.setState({status: 'done', link: 'data:application/octet-stream;charset=utf-8,' + encodeURIComponent(res.text)});
+    onImportSuccess(data) {
+        this.setState({status: 'done', link: 'data:application/octet-stream;charset=utf-8,' + encodeURIComponent(atob(data.results))});
     }
 
     doImportSlack(file) {

webapp/utils/utils.jsx

@@ -1107,7 +1107,7 @@ export function isDirectChannelForUser(otherUserId, channel) {
 }
 
 export function importSlack(file, success, error) {
-    Client4.importTeam(file, 'slack').then(success).catch(error);
+    Client4.importTeam(TeamStore.getCurrent().id, file, 'slack').then(success).catch(error);
 }
 
 export function windowWidth() {