Support for joining chats by invite link

telegram-adium/TelegramJoinChatView.xib

@@ -9,6 +9,7 @@
             <connections>
                 <outlet property="popupButton_existingChat" destination="vmH-Cu-psq" id="15U-eW-T0i"/>
                 <outlet property="textField_createChatName" destination="k91-zE-a20" id="AGg-hH-XJg"/>
+                <outlet property="textField_joinByLink" destination="Es2-Po-Hhy" id="zR1-oE-U47"/>
                 <outlet property="tokenField_createChatUsers" destination="ePS-oV-elo" id="gC2-bj-Lfw"/>
                 <outlet property="view" destination="c22-O7-iKe" id="4pN-H1-fp0"/>
             </connections>

telegram-adium/TelegramJoinChatViewController.h

@@ -22,6 +22,7 @@
 
 @interface TelegramJoinChatViewController : DCJoinChatViewController <NSTokenFieldDelegate> {
   IBOutlet NSPopUpButton *popupButton_existingChat;
+  IBOutlet NSTextField *textField_joinByLink;
   IBOutlet NSTextField *textField_createChatName;
   IBOutlet NSTokenField *tokenField_createChatUsers;
 }

telegram-adium/TelegramJoinChatViewController.m

@@ -95,6 +95,12 @@ static void tgl_peer_iterator_cb (tgl_peer_t *peer, void *extra) {
   PurpleConnection *gc = purple_account_get_connection(pa);
   if (gc && PURPLE_CONNECTION_IS_CONNECTED(gc)) {
     connection_data *conn = purple_connection_get_protocol_data (gc);
+    NSString *link = [textField_joinByLink stringValue];
+    
+    if ([link length]) {
+      import_chat_link_checked (conn->TLS, [link UTF8String]);
+      return;
+    }
     NSString *createChatName = [textField_createChatName stringValue];
     NSArray *tokens = [tokenField_createChatUsers objectValue];
     if ([createChatName length] && [tokens count]) {

telegram-purple.c

@@ -462,6 +462,19 @@ void export_chat_link_checked (struct tgl_state *TLS, const char *name) {
   tgl_do_export_chat_link (TLS, C->id, create_chat_link_done, C);
 }
 
+static void import_chat_link_done (struct tgl_state *TLS, void *extra, int success) {
+  if (! success) {
+    purple_notify_error (_telegram_protocol, "Failure", "Joining by Link Failed",
+                         "Maybe the link is invalid, or you already joined the chat.");
+    return;
+  }
+  purple_notify_info (_telegram_protocol, "Success", "Chat Joined", "Chat joined.");
+}
+
+void import_chat_link_checked (struct tgl_state *TLS, const char *link) {
+  tgl_do_import_chat_link (TLS, link, (int) strlen(link), import_chat_link_done, NULL);
+}
+
 static GList* tgprpl_blist_node_menu (PurpleBlistNode *node) {
   debug ("tgprpl_blist_node_menu()");
 
@@ -485,13 +498,19 @@ static GList* tgprpl_blist_node_menu (PurpleBlistNode *node) {
 
 static GList *tgprpl_chat_join_info (PurpleConnection * gc) {
   debug ("tgprpl_chat_join_info()");
-  struct proto_chat_entry *pce;
   
+  struct proto_chat_entry *pce;
   pce = g_new0(struct proto_chat_entry, 1);
   pce->label = "_Subject:";
   pce->identifier = "subject";
-  pce->required = TRUE;
-  return g_list_append(NULL, pce);
+  pce->required = FALSE;
+  GList *info = g_list_append (NULL, pce);
+  
+  pce = g_new0(struct proto_chat_entry, 1);
+  pce->label = "_Join by Link:";
+  pce->identifier = "link";
+  pce->required = FALSE;
+  return g_list_append (info, pce);
 }
 
 static void tgprpl_login (PurpleAccount * acct) {
@@ -651,12 +670,11 @@ static void tgprpl_remove_buddy (PurpleConnection * gc, PurpleBuddy * buddy, Pur
       tgl_do_del_contact (conn->TLS, peer->id, NULL, NULL);
       break;
   }
-  
 }
 
 static void tgprpl_chat_join (PurpleConnection * gc, GHashTable * data) {
   debug ("tgprpl_chat_join()");
-  const char *subject = NULL;
+  const char *subject = NULL, *link = NULL;
   gpointer value;
   connection_data *conn = purple_connection_get_protocol_data (gc);
   
@@ -666,6 +684,12 @@ static void tgprpl_chat_join (PurpleConnection * gc, GHashTable * data) {
     return;
   }
   
+  link = g_hash_table_lookup(data, "link");
+  if (str_not_empty(link)) {
+    tgl_do_import_chat_link (conn->TLS, link, (int)strlen (link), NULL, NULL);
+    return;
+  }
+  
   subject = g_hash_table_lookup (data, "subject");
   if (str_not_empty (subject)) {
     tgl_peer_t *P = tgl_peer_get_by_name (conn->TLS, subject);
@@ -681,11 +705,6 @@ static char *tgprpl_get_chat_name (GHashTable * data) {
   return g_strdup(g_hash_table_lookup(data, "subject"));
 }
 
-static GHashTable *tgprpl_chat_info_deflt (PurpleConnection * gc, const char *chat_name) {
-  debug ("tgprpl_chat_info_defaults()");
-  return NULL;
-}
-
 static void tgprpl_chat_invite (PurpleConnection * gc, int id, const char *message, const char *name) {
   debug ("tgprpl_chat_invite()");
 
@@ -732,7 +751,7 @@ PurplePlugin *_telegram_protocol = NULL;
 
 static PurplePluginProtocolInfo prpl_info = {
   OPT_PROTO_NO_PASSWORD | OPT_PROTO_IM_IMAGE,
-  NULL,                    // user_splits, initialized in tgprpl_init()
+  NULL,                    // user_¡splits, initialized in tgprpl_init()
   NULL,                    // protocol_options, initialized in tgprpl_init()
   {
     "png",

telegram-purple.h

@@ -65,5 +65,6 @@ extern const char *pk_path;
 extern const char *config_dir;
 extern PurplePlugin *_telegram_protocol;
 void export_chat_link_checked (struct tgl_state *TLS, const char *name);
+void import_chat_link_checked (struct tgl_state *TLS, const char *link);
 
 #endif