pidgin: 3851a1cf: Prevent sending ISON messages larger tha...

rekkanoryo at pidgin.im rekkanoryo at pidgin.im
Wed Dec 29 20:31:18 EST 2010


----------------------------------------------------------------------
Revision: 3851a1cf3c16073e17c31b6b23194cb26ce1be6f
Parent:   322ea5e330b2ce8591329c42931c0ad8dbbbf2cf
Author:   jch at honig.net
Date:     12/29/10 20:06:03
Branch:   im.pidgin.pidgin
URL: http://d.pidgin.im/viewmtn/revision/info/3851a1cf3c16073e17c31b6b23194cb26ce1be6f

Changelog: 

Prevent sending ISON messages larger than 512 bytes.  Fixes #9692.

Changes against parent 322ea5e330b2ce8591329c42931c0ad8dbbbf2cf

  patched  COPYRIGHT
  patched  ChangeLog
  patched  libpurple/protocols/irc/irc.c
  patched  libpurple/protocols/irc/irc.h
  patched  libpurple/protocols/irc/msgs.c

-------------- next part --------------
============================================================
--- ChangeLog	f9c98e7df9b9b56f14e81a0783da83ea9851e705
+++ ChangeLog	55c168b29c37554c0f1fa684b7de0c3798b32c9d
@@ -1,6 +1,9 @@ version 2.7.10 (??/??/????):
 Pidgin and Finch: The Pimpin' Penguin IM Clients That're Good for the Soul
 
 version 2.7.10 (??/??/????):
+	IRC:
+	* Don't send ISON messages longer than 512 bytes. (Jeffrey Honig) (#9692)
+
 	libpurple:
 	* Stop sending audio when placing a call on hold. (Jakub Adam) (#13032)
 	* Stop translating gpointers to ints in the dbus API.  This removes
============================================================
--- libpurple/protocols/irc/irc.c	7f37c323a474e7e1dee1dbd1a9b11da76deeae9c
+++ libpurple/protocols/irc/irc.c	9824f680d433623dac1d94bb4e8b6fead8d0e597
@@ -39,7 +39,7 @@
 
 #define PING_TIMEOUT 60
 
-static void irc_buddy_append(char *name, struct irc_buddy *ib, GString *string);
+static void irc_ison_buddy_init(char *name, struct irc_buddy *ib, GList **list);
 
 static const char *irc_blist_icon(PurpleAccount *a, PurpleBuddy *b);
 static GList *irc_status_types(PurpleAccount *account);
@@ -186,43 +186,62 @@ gboolean irc_blist_timeout(struct irc_co
 /* XXX I don't like messing directly with these buddies */
 gboolean irc_blist_timeout(struct irc_conn *irc)
 {
-	GString *string;
-	char *list, *buf;
+	if (irc->ison_outstanding) {
+		return TRUE;
+	}
 
-	if (irc->ison_outstanding)
-		return TRUE;
+	g_hash_table_foreach(irc->buddies, (GHFunc)irc_ison_buddy_init,
+	                     (gpointer *)&irc->buddies_outstanding);
 
-	string = g_string_sized_new(512);
+	irc_buddy_query(irc);
 
-	g_hash_table_foreach(irc->buddies, (GHFunc)irc_buddy_append, (gpointer)string);
+	return TRUE;
+}
 
-	list = g_string_free(string, FALSE);
-	if (!list || !strlen(list)) {
-		g_free(list);
-		return TRUE;
-	}
+void irc_buddy_query(struct irc_conn *irc)
+{
+	GList *lp;
+	GString *string;
+	struct irc_buddy *ib;
+	char *buf;
 
-	buf = irc_format(irc, "vn", "ISON", list);
-	g_free(list);
-	irc_send(irc, buf);
-	g_free(buf);
+	string = g_string_sized_new(512);
 
-	irc->ison_outstanding = TRUE;
+	while ((lp = g_list_first(irc->buddies_outstanding))) {
+		ib = (struct irc_buddy *)lp->data;
+		if (string->len + strlen(ib->name) + 1 > 450)
+			break;
+		g_string_append_printf(string, "%s ", ib->name);
+		ib->new_online_status = FALSE;
+		irc->buddies_outstanding = g_list_remove_link(irc->buddies_outstanding, lp);
+	}
 
-	return TRUE;
+	if (string->len) {
+		buf = irc_format(irc, "vn", "ISON", string->str);
+		irc_send(irc, buf);
+		g_free(buf);
+		irc->ison_outstanding = TRUE;
+	} else
+		irc->ison_outstanding = FALSE;
+
+	g_string_free(string, TRUE);
 }
 
-static void irc_buddy_append(char *name, struct irc_buddy *ib, GString *string)
+static void irc_ison_buddy_init(char *name, struct irc_buddy *ib, GList **list)
 {
-	ib->flag = FALSE;
-	g_string_append_printf(string, "%s ", name);
+	*list = g_list_append(*list, ib);
 }
 
 static void irc_ison_one(struct irc_conn *irc, struct irc_buddy *ib)
 {
 	char *buf;
 
-	ib->flag = FALSE;
+	if (irc->buddies_outstanding != NULL) {
+		irc->buddies_outstanding = g_list_append(irc->buddies_outstanding, ib);
+		return;
+	}
+
+	ib->new_online_status = FALSE;
 	buf = irc_format(irc, "vn", "ISON", ib->name);
 	irc_send(irc, buf);
 	g_free(buf);
============================================================
--- libpurple/protocols/irc/irc.h	b74849f9927175a474cb318bbdde9d2b130b992e
+++ libpurple/protocols/irc/irc.h	df6b06ec27843e6a773c86340988fbd1dddc30a7
@@ -58,6 +58,7 @@ struct irc_conn {
 	GHashTable *buddies;
 
 	gboolean ison_outstanding;
+	GList *buddies_outstanding;
 
 	char *inbuf;
 	int inbuflen;
@@ -97,6 +98,7 @@ struct irc_buddy {
 	char *name;
 	gboolean online;
 	gboolean flag;
+ 	gboolean new_online_status;
 	int ref;
 };
 
@@ -104,6 +106,7 @@ gboolean irc_blist_timeout(struct irc_co
 
 int irc_send(struct irc_conn *irc, const char *buf);
 gboolean irc_blist_timeout(struct irc_conn *irc);
+void irc_buddy_query(struct irc_conn *irc);
 
 char *irc_escape_privmsg(const char *text, gssize length);
 
============================================================
--- libpurple/protocols/irc/msgs.c	711c291ec1444e4cb5402313775691a4792cf15d
+++ libpurple/protocols/irc/msgs.c	0cd2a14587598f755b2ab7b88f5f532c3512b6d6
@@ -761,18 +761,19 @@ void irc_msg_ison(struct irc_conn *irc, 
 		return;
 
 	nicks = g_strsplit(args[1], " ", -1);
-
 	for (i = 0; nicks[i]; i++) {
 		if ((ib = g_hash_table_lookup(irc->buddies, (gconstpointer)nicks[i])) == NULL) {
 			continue;
 		}
-		ib->flag = TRUE;
+		ib->new_online_status = TRUE;
 	}
+	g_strfreev(nicks);
 
-	g_strfreev(nicks);
+	if (irc->ison_outstanding)
+		irc_buddy_query(irc);
 
-	g_hash_table_foreach(irc->buddies, (GHFunc)irc_buddy_status, (gpointer)irc);
-	irc->ison_outstanding = FALSE;
+	if (!irc->ison_outstanding)
+		g_hash_table_foreach(irc->buddies, (GHFunc)irc_buddy_status, (gpointer)irc);
 }
 
 static void irc_buddy_status(char *name, struct irc_buddy *ib, struct irc_conn *irc)
@@ -783,10 +784,10 @@ static void irc_buddy_status(char *name,
 	if (!gc || !buddy)
 		return;
 
-	if (ib->online && !ib->flag) {
+	if (ib->online && !ib->new_online_status) {
 		purple_prpl_got_user_status(irc->account, name, "offline", NULL);
 		ib->online = FALSE;
-	} else if (!ib->online && ib->flag) {
+	} else if (!ib->online && ib->new_online_status) {
 		purple_prpl_got_user_status(irc->account, name, "available", NULL);
 		ib->online = TRUE;
 	}
@@ -837,7 +838,7 @@ void irc_msg_join(struct irc_conn *irc, 
 	purple_conv_chat_add_user(PURPLE_CONV_CHAT(convo), nick, userhost, PURPLE_CBFLAGS_NONE, TRUE);
 
 	if ((ib = g_hash_table_lookup(irc->buddies, nick)) != NULL) {
-		ib->flag = TRUE;
+		ib->new_online_status = TRUE;
 		irc_buddy_status(nick, ib, irc);
 	}
 
@@ -1233,7 +1234,7 @@ void irc_msg_quit(struct irc_conn *irc, 
 	g_slist_foreach(gc->buddy_chats, (GFunc)irc_chat_remove_buddy, data);
 
 	if ((ib = g_hash_table_lookup(irc->buddies, data[0])) != NULL) {
-		ib->flag = FALSE;
+		ib->new_online_status = FALSE;
 		irc_buddy_status(data[0], ib, irc);
 	}
 	g_free(data[0]);
============================================================
--- COPYRIGHT	815f2a68fae77c33f6d31d1c09425a6271e99e4f
+++ COPYRIGHT	e20301a5c1d18078422927d1976543909d8f2453
@@ -223,6 +223,7 @@ Joshua Honeycutt
 Andrew Hoffman
 Iain Holmes
 Joshua Honeycutt
+Jeffrey Honig
 Nigel Horne
 Jensen Hornick
 Juanjo Molinero Horno


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