Moved logic for making direct channels visible to both members on post to the server

2 files changed, 107 insertions, 0 deletions

diff --git a/api/post.go b/api/post.go
index e1adc1d98..5f9dbc775 100644
--- a/api/post.go
+++ b/api/post.go
@@ -236,9 +236,68 @@ func handlePostEventsAndForget(c *Context, post *model.Post, triggerWebhooks boo
 		if triggerWebhooks {
 			handleWebhookEventsAndForget(c, post, team, channel, user)
 		}
+
+		if channel.Type == model.CHANNEL_DIRECT {
+			go makeDirectChannelVisible(c.Session.TeamId, post.ChannelId)
+		}
 	}()
 }
 
+func makeDirectChannelVisible(teamId string, channelId string) {
+	var members []model.ChannelMember
+	if result := <-Srv.Store.Channel().GetMembers(channelId); result.Err != nil {
+		l4g.Error("Failed to get channel members channel_id=%v err=%v", channelId, result.Err.Message)
+		return
+	} else {
+		members = result.Data.([]model.ChannelMember)
+	}
+
+	if len(members) != 2 {
+		l4g.Error("Failed to get 2 members for a direct channel channel_id=%v", channelId)
+		return
+	}
+
+	// make sure the channel is visible to both members
+	for i, member := range members {
+		otherUserId := members[1-i].UserId
+
+		if result := <-Srv.Store.Preference().Get(member.UserId, model.PREFERENCE_CATEGORY_DIRECT_CHANNEL_SHOW, otherUserId); result.Err != nil {
+			// create a new preference since one doesn't exist yet
+			preference := &model.Preference{
+				UserId:   member.UserId,
+				Category: model.PREFERENCE_CATEGORY_DIRECT_CHANNEL_SHOW,
+				Name:     otherUserId,
+				Value:    "true",
+			}
+
+			if saveResult := <-Srv.Store.Preference().Save(&model.Preferences{*preference}); saveResult.Err != nil {
+				l4g.Error("Failed to save direct channel preference user_id=%v other_user_id=%v err=%v", member.UserId, otherUserId, saveResult.Err.Message)
+			} else {
+				message := model.NewMessage(teamId, channelId, member.UserId, model.ACTION_PREFERENCE_CHANGED)
+				message.Add("preference", preference.ToJson())
+
+				PublishAndForget(message)
+			}
+		} else {
+			preference := result.Data.(model.Preference)
+
+			if preference.Value != "true" {
+				// update the existing preference to make the channel visible
+				preference.Value = "true"
+
+				if updateResult := <-Srv.Store.Preference().Save(&model.Preferences{preference}); updateResult.Err != nil {
+					l4g.Error("Failed to update direct channel preference user_id=%v other_user_id=%v err=%v", member.UserId, otherUserId, updateResult.Err.Message)
+				} else {
+					message := model.NewMessage(teamId, channelId, member.UserId, model.ACTION_PREFERENCE_CHANGED)
+					message.Add("preference", preference.ToJson())
+
+					PublishAndForget(message)
+				}
+			}
+		}
+	}
+}
+
 func handleWebhookEventsAndForget(c *Context, post *model.Post, team *model.Team, channel *model.Channel, user *model.User) {
 	go func() {
 		if !utils.Cfg.ServiceSettings.EnableOutgoingWebhooks {
diff --git a/api/post_test.go b/api/post_test.go
index 0cb437e88..8e09ca76d 100644
--- a/api/post_test.go
+++ b/api/post_test.go
@@ -805,3 +805,51 @@ func TestFuzzyPosts(t *testing.T) {
 		}
 	}
 }
+
+func TestMakeDirectChannelVisible(t *testing.T) {
+	Setup()
+
+	team := &model.Team{DisplayName: "Name", Name: "z-z-" + model.NewId() + "a", Email: "test@nowhere.com", Type: model.TEAM_OPEN}
+	team = Client.Must(Client.CreateTeam(team)).Data.(*model.Team)
+
+	user1 := &model.User{TeamId: team.Id, Email: model.NewId() + "corey@test.com", Nickname: "Corey Hulen", Password: "pwd"}
+	user1 = Client.Must(Client.CreateUser(user1, "")).Data.(*model.User)
+	store.Must(Srv.Store.User().VerifyEmail(user1.Id))
+
+	user2 := &model.User{TeamId: team.Id, Email: model.NewId() + "corey@test.com", Nickname: "Corey Hulen", Password: "pwd"}
+	user2 = Client.Must(Client.CreateUser(user2, "")).Data.(*model.User)
+	store.Must(Srv.Store.User().VerifyEmail(user2.Id))
+
+	// user2 will be created with prefs created to show user1 in the sidebar so set that to false to get rid of it
+	Client.LoginByEmail(team.Name, user2.Email, "pwd")
+
+	preferences := &model.Preferences{
+		{
+			UserId:   user2.Id,
+			Category: model.PREFERENCE_CATEGORY_DIRECT_CHANNEL_SHOW,
+			Name:     user1.Id,
+			Value:    "false",
+		},
+	}
+	Client.Must(Client.SetPreferences(preferences))
+
+	Client.LoginByEmail(team.Name, user1.Email, "pwd")
+
+	channel := Client.Must(Client.CreateDirectChannel(map[string]string{"user_id": user2.Id})).Data.(*model.Channel)
+
+	makeDirectChannelVisible(team.Id, channel.Id)
+
+	if result, err := Client.GetPreference(model.PREFERENCE_CATEGORY_DIRECT_CHANNEL_SHOW, user2.Id); err != nil {
+		t.Fatal("Errored trying to set direct channel to be visible for user1")
+	} else if pref := result.Data.(*model.Preference); pref.Value != "true" {
+		t.Fatal("Failed to set direct channel to be visible for user1")
+	}
+
+	Client.LoginByEmail(team.Name, user2.Email, "pwd")
+
+	if result, err := Client.GetPreference(model.PREFERENCE_CATEGORY_DIRECT_CHANNEL_SHOW, user1.Id); err != nil {
+		t.Fatal("Errored trying to set direct channel to be visible for user2")
+	} else if pref := result.Data.(*model.Preference); pref.Value != "true" {
+		t.Fatal("Failed to set direct channel to be visible for user2")
+	}
+}