add team exists endpoint for APIv4 (#5517)

Makefile

@@ -203,7 +203,7 @@ test-server: start-docker prepare-enterprise
 	echo "mode: count" > cover.out
 
 	$(GO) test $(GOFLAGS) -run=$(TESTS) -test.v -test.timeout=1050s -covermode=count -coverprofile=capi.out ./api || exit 1
-	$(GO) test $(GOFLAGS) -run=$(TESTS) -test.v -test.timeout=650s -covermode=count -coverprofile=capi4.out ./api4 || exit 1
+	$(GO) test $(GOFLAGS) -run=$(TESTS) -test.v -test.timeout=800s -covermode=count -coverprofile=capi4.out ./api4 || exit 1
 	$(GO) test $(GOFLAGS) -run=$(TESTS) -test.v -test.timeout=60s -covermode=count -coverprofile=capp.out ./app || exit 1
 	$(GO) test $(GOFLAGS) -run=$(TESTS) -test.v -test.timeout=60s -covermode=count -coverprofile=cmodel.out ./model || exit 1
 	$(GO) test $(GOFLAGS) -run=$(TESTS) -test.v -test.timeout=180s -covermode=count -coverprofile=cstore.out ./store || exit 1

api4/team.go

@@ -26,6 +26,7 @@ func InitTeam() {
 
 	BaseRoutes.TeamByName.Handle("", ApiSessionRequired(getTeamByName)).Methods("GET")
 	BaseRoutes.TeamMember.Handle("", ApiSessionRequired(getTeamMember)).Methods("GET")
+	BaseRoutes.TeamByName.Handle("/exists", ApiSessionRequired(teamExists)).Methods("GET")
 	BaseRoutes.TeamMember.Handle("/roles", ApiSessionRequired(updateTeamMemberRoles)).Methods("PUT")
 }
 
@@ -72,6 +73,11 @@ func getTeam(c *Context, w http.ResponseWriter, r *http.Request) {
 }
 
 func getTeamByName(c *Context, w http.ResponseWriter, r *http.Request) {
+	c.RequireTeamName()
+	if c.Err != nil {
+		return
+	}
+
 	if team, err := app.GetTeamByName(c.Params.TeamName); err != nil {
 		c.Err = err
 		return
@@ -232,3 +238,21 @@ func getAllTeams(c *Context, w http.ResponseWriter, r *http.Request) {
 
 	w.Write([]byte(model.TeamListToJson(teams)))
 }
+
+func teamExists(c *Context, w http.ResponseWriter, r *http.Request) {
+	c.RequireTeamName()
+	if c.Err != nil {
+		return
+	}
+
+	resp := make(map[string]bool)
+
+	if _, err := app.GetTeamByName(c.Params.TeamName); err != nil {
+		resp["exists"] = false
+	} else {
+		resp["exists"] = true
+	}
+
+	w.Write([]byte(model.MapBoolToJson(resp)))
+	return
+}

api4/team_test.go

@@ -126,7 +126,7 @@ func TestGetAllTeams(t *testing.T) {
 	rrteams, resp := Client.GetAllTeams("", 1, 1)
 	CheckNoError(t, resp)
 
-	if (len(rrteams) != 1) {
+	if len(rrteams) != 1 {
 		t.Fatal("wrong number of teams - should be 1")
 	}
 
@@ -139,21 +139,21 @@ func TestGetAllTeams(t *testing.T) {
 	rrteams1, resp := Client.GetAllTeams("", 1, 0)
 	CheckNoError(t, resp)
 
-	if (len(rrteams1) != 0) {
+	if len(rrteams1) != 0 {
 		t.Fatal("wrong number of teams - should be 0")
 	}
 
 	rrteams2, resp := th.SystemAdminClient.GetAllTeams("", 1, 1)
 	CheckNoError(t, resp)
 
-	if (len(rrteams2) != 1) {
+	if len(rrteams2) != 1 {
 		t.Fatal("wrong number of teams - should be 1")
 	}
 
 	rrteams2, resp = Client.GetAllTeams("", 1, 0)
 	CheckNoError(t, resp)
 
-	if (len(rrteams2) != 0) {
+	if len(rrteams2) != 0 {
 		t.Fatal("wrong number of teams - should be 0")
 	}
 
@@ -494,3 +494,28 @@ func TestGetMyTeamsUnread(t *testing.T) {
 	_, resp = Client.GetTeamsUnreadForUser(user.Id, "")
 	CheckUnauthorizedStatus(t, resp)
 }
+
+func TestTeamExists(t *testing.T) {
+	th := Setup().InitBasic().InitSystemAdmin()
+	defer TearDown()
+	Client := th.Client
+	team := th.BasicTeam
+
+	th.LoginBasic()
+
+	exists, resp := Client.TeamExists(team.Name, "")
+	CheckNoError(t, resp)
+	if exists != true {
+		t.Fatal("team should exist")
+	}
+
+	exists, resp = Client.TeamExists("testingteam", "")
+	CheckNoError(t, resp)
+	if exists != false {
+		t.Fatal("team should not exist")
+	}
+
+	Client.Logout()
+	_, resp = Client.TeamExists(team.Name, "")
+	CheckUnauthorizedStatus(t, resp)
+}

model/client4.go

@@ -600,6 +600,16 @@ func (c *Client4) GetTeamByName(name, etag string) (*Team, *Response) {
 	}
 }
 
+// TeamExists returns true or false if the team exist or not.
+func (c *Client4) TeamExists(name, etag string) (bool, *Response) {
+	if r, err := c.DoApiGet(c.GetTeamByNameRoute(name)+"/exists", etag); err != nil {
+		return false, &Response{StatusCode: r.StatusCode, Error: err}
+	} else {
+		defer closeBody(r)
+		return MapBoolFromJson(r.Body)["exists"], BuildResponse(r)
+	}
+}
+
 // GetTeamsForUser returns a list of teams a user is on. Must be logged in as the user
 // or be a system administrator.
 func (c *Client4) GetTeamsForUser(userId, etag string) ([]*Team, *Response) {

model/utils.go

@@ -156,6 +156,15 @@ func MapToJson(objmap map[string]string) string {
 	}
 }
 
+// MapToJson converts a map to a json string
+func MapBoolToJson(objmap map[string]bool) string {
+	if b, err := json.Marshal(objmap); err != nil {
+		return ""
+	} else {
+		return string(b)
+	}
+}
+
 // MapFromJson will decode the key/value pair map
 func MapFromJson(data io.Reader) map[string]string {
 	decoder := json.NewDecoder(data)
@@ -168,6 +177,18 @@ func MapFromJson(data io.Reader) map[string]string {
 	}
 }
 
+// MapFromJson will decode the key/value pair map
+func MapBoolFromJson(data io.Reader) map[string]bool {
+	decoder := json.NewDecoder(data)
+
+	var objmap map[string]bool
+	if err := decoder.Decode(&objmap); err != nil {
+		return make(map[string]bool)
+	} else {
+		return objmap
+	}
+}
+
 func ArrayToJson(objmap []string) string {
 	if b, err := json.Marshal(objmap); err != nil {
 		return ""