pidgin: 7e1e376d: jabber: Cache incoming BoB object per JI...

malu at pidgin.im malu at pidgin.im
Tue Mar 23 19:31:06 EDT 2010


-----------------------------------------------------------------
Revision: 7e1e376dfb1d794f80c1f29679e3e899208bd856
Ancestor: 4bc08b46766e0e90fc3cffefe00104882456b92f
Author: malu at pidgin.im
Date: 2010-03-23T22:17:34
Branch: im.pidgin.pidgin
URL: http://d.pidgin.im/viewmtn/revision/info/7e1e376dfb1d794f80c1f29679e3e899208bd856

Modified files:
        ChangeLog libpurple/protocols/jabber/data.c
        libpurple/protocols/jabber/data.h
        libpurple/protocols/jabber/message.c

ChangeLog: 

jabber: Cache incoming BoB object per JID (and local JID) instead of discarding
them when receiving an invalid or unrecognised hash. As per the MUC discussions.

-------------- next part --------------
============================================================
--- ChangeLog	567d7486ed772bb04e236a4eae697723b4eb2600
+++ ChangeLog	8ee601070a86d0956c036c717f63a28383b957e3
@@ -55,7 +55,9 @@ version 2.7.0 (??/??/????):
 	  rjoly for testing)
 	* When sending data using in-band-bytestreams, interpret the block-size
 	  attribute as the size of the BASE64-encoded representation of the data.
-	* Validate the hash on incoming BoB data objects (for custom smileys etc.).
+	* Validate the hash on incoming BoB data objects (for custom smileys etc.),
+	  cache based per JID when the CID is not a valid hash (as specified by the
+	  BoB XEP).
 
 	Yahoo:
 	* Attempt to better handle transparent proxies interfering with HTTP-based
============================================================
--- libpurple/protocols/jabber/data.c	7c0bcd707f0753a62747ede29c95e53ca6eddaa5
+++ libpurple/protocols/jabber/data.c	336ba1a3ed3d29f33240b9fd5a75b45a3bdb08bb
@@ -54,58 +54,6 @@ jabber_data_create_from_data(gconstpoint
 	return data;
 }
 
-
-static gboolean
-jabber_data_has_valid_hash(const JabberData *data)
-{
-	const gchar *cid = jabber_data_get_cid(data);
-	gchar **cid_parts = g_strsplit(cid, "@", -1);
-	gchar **iter;
-	int num_parts = 0;
-
-	purple_debug_info("jabber", "validating BoB hash %s\n", cid);
-	
-	for (iter = cid_parts; *iter != NULL ; iter++) {
-		num_parts++;
-	}
-
-	if (num_parts == 2 && purple_strequal(cid_parts[1], "bob.xmpp.org")) {
-		gchar **sub_parts = g_strsplit(cid_parts[0], "+", -1);
-
-		num_parts = 0;
-		for (iter = sub_parts ; *iter != NULL ; iter++) {
-			num_parts++;
-		}
-
-		if (num_parts == 2) {
-			const gchar *hash_algo = sub_parts[0];
-			const gchar *hash_value = sub_parts[1];
-			gchar *digest =
-				jabber_calculate_data_hash(jabber_data_get_data(data),
-				    jabber_data_get_size(data), hash_algo);
-
-			purple_debug_info("jabber", "BoB expecting hash: %s\n", digest);
-			
-			if (digest) {
-				gboolean result = purple_strequal(digest, hash_value);
-
-				if (!result) {
-					purple_debug_error("jabber", "invalid BoB hash\n");
-				}
-				g_free(digest);
-				return result;
-			} else {
-				purple_debug_info("jabber", "unknown BoB hash algo\n");
-				return FALSE;
-			}
-		} else {
-			return TRUE;
-		}
-	} else {
-		return TRUE;
-	}
-}
-
 static void
 jabber_data_delete(gpointer cbdata)
 {
@@ -159,11 +107,6 @@ jabber_data_create_from_xml(xmlnode *tag
 	data->cid = g_strdup(cid);
 	data->type = g_strdup(type);
 
-	if (!jabber_data_has_valid_hash(data)) {
-		jabber_data_delete(data);
-		return NULL;
-	}
-
 	return data;
 }
 
@@ -233,7 +176,58 @@ jabber_data_get_xml_request(const gchar 
 	return tag;
 }
 
+static gboolean
+jabber_data_has_valid_hash(const JabberData *data)
+{
+	const gchar *cid = jabber_data_get_cid(data);
+	gchar **cid_parts = g_strsplit(cid, "@", -1);
+	gchar **iter;
+	int num_parts = 0;
 
+	purple_debug_info("jabber", "validating BoB hash %s\n", cid);
+	
+	for (iter = cid_parts; *iter != NULL ; iter++) {
+		num_parts++;
+	}
+
+	if (num_parts == 2 && purple_strequal(cid_parts[1], "bob.xmpp.org")) {
+		gchar **sub_parts = g_strsplit(cid_parts[0], "+", -1);
+
+		num_parts = 0;
+		for (iter = sub_parts ; *iter != NULL ; iter++) {
+			num_parts++;
+		}
+
+		if (num_parts == 2) {
+			const gchar *hash_algo = sub_parts[0];
+			const gchar *hash_value = sub_parts[1];
+			gchar *digest =
+				jabber_calculate_data_hash(jabber_data_get_data(data),
+				    jabber_data_get_size(data), hash_algo);
+			
+			if (digest) {
+				gboolean result = purple_strequal(digest, hash_value);
+
+				purple_debug_info("jabber", "BoB expecting hash: %s\n", digest);
+
+				if (!result) {
+					purple_debug_error("jabber", "invalid BoB hash\n");
+				}
+				g_free(digest);
+				return result;
+			} else {
+				purple_debug_info("jabber", "unknown BoB hash algo\n");
+				return FALSE;
+			}
+		} else {
+			return FALSE;
+		}
+	} else {
+		return FALSE;
+	}
+}
+
+
 typedef struct {
 	gpointer userdata;
 	gchar *alt;
@@ -258,17 +252,10 @@ jabber_data_request_cb(JabberStream *js,
 	if (data_element && type == JABBER_IQ_RESULT) {
 		JabberData *data = jabber_data_create_from_xml(data_element);
 
-		if (data) {
-			if (!ephemeral) {
-				jabber_data_associate_remote(data);
-			}
-			cb(data, alt, userdata);
-		} else {
-			/* could not validate hash when creating data from XML */
-			purple_debug_info("jabber",
-			    "hash validation failed on requested BoB object\n");
-			cb(NULL, alt, userdata);
+		if (!ephemeral) {
+			jabber_data_associate_remote(js, from, data);
 		}
+		cb(data, alt, userdata);
 	} else if (item_not_found) {
 		purple_debug_info("jabber",
 			"Responder didn't recognize requested data\n");
@@ -316,11 +303,23 @@ const JabberData *
 }
 
 const JabberData *
-jabber_data_find_remote_by_cid(const gchar *cid)
+jabber_data_find_remote_by_cid(JabberStream *js, const gchar *who,
+    const gchar *cid)
 {
+	const JabberData *data = g_hash_table_lookup(remote_data_by_cid, cid);
 	purple_debug_info("jabber", "lookup remote smiley with cid = %s\n", cid);
 
-	return g_hash_table_lookup(remote_data_by_cid, cid);
+	if (data == NULL) {
+		gchar *jid_cid =
+			g_strdup_printf("%s@%s/%s%s%s", js->user->node, js->user->domain,
+			    js->user->resource, who, cid);
+		purple_debug_info("jabber",
+		    "didn't find BoB object by pure CID, try including JIDs: %s\n",
+		    jid_cid);
+		data = g_hash_table_lookup(remote_data_by_cid, jid_cid);
+		g_free(jid_cid);
+	}
+	return data;
 }
 
 void
@@ -334,12 +333,21 @@ void
 }
 
 void
-jabber_data_associate_remote(JabberData *data)
+jabber_data_associate_remote(JabberStream *js, const gchar *who, JabberData *data)
 {
-	purple_debug_info("jabber", "associating remote smiley, cid = %s\n",
-		jabber_data_get_cid(data));
-	g_hash_table_insert(remote_data_by_cid, g_strdup(jabber_data_get_cid(data)),
-		data);
+	gchar *cid;
+	
+	if (jabber_data_has_valid_hash(data)) {
+		cid = g_strdup(jabber_data_get_cid(data));
+	} else {
+		cid = g_strdup_printf("%s@%s/%s%s%s", js->user->node, js->user->domain,
+		    js->user->resource, who, jabber_data_get_cid(data));
+	}
+
+	purple_debug_info("jabber", "associating remote BoB object with cid = %s\n",
+		cid);
+	
+	g_hash_table_insert(remote_data_by_cid, cid, data);
 }
 
 void
============================================================
--- libpurple/protocols/jabber/data.h	2eac9027496d99898c4382fa297a495c2e079791
+++ libpurple/protocols/jabber/data.h	456587544974d910f52a707f8ecf73bef80856ea
@@ -67,11 +67,13 @@ const JabberData *jabber_data_find_local
 /* lookup functions */
 const JabberData *jabber_data_find_local_by_alt(const gchar *alt);
 const JabberData *jabber_data_find_local_by_cid(const gchar *cid);
-const JabberData *jabber_data_find_remote_by_cid(const gchar *cid);
+const JabberData *jabber_data_find_remote_by_cid(JabberStream *js,
+    const gchar *who, const gchar *cid);
 
 /* store data objects */
 void jabber_data_associate_local(JabberData *data, const gchar *alt);
-void jabber_data_associate_remote(JabberData *data);
+void jabber_data_associate_remote(JabberStream *js, const gchar *who,
+    JabberData *data);
 
 /* handles iq requests */
 void jabber_data_parse(JabberStream *js, const char *who, JabberIqType type,
============================================================
--- libpurple/protocols/jabber/message.c	4caeee14cbf11de04d3ff9565774b9581127f44f
+++ libpurple/protocols/jabber/message.c	44e1acf62aea2def28ce0c1047c25df63ec9698d
@@ -462,21 +462,22 @@ static void
 }
 
 static void
-jabber_message_add_remote_smileys(const xmlnode *message)
+jabber_message_add_remote_smileys(JabberStream *js, const gchar *who,
+    const xmlnode *message)
 {
 	xmlnode *data_tag;
 	for (data_tag = xmlnode_get_child_with_namespace(message, "data", NS_BOB) ;
 		 data_tag ;
 		 data_tag = xmlnode_get_next_twin(data_tag)) {
 		const gchar *cid = xmlnode_get_attrib(data_tag, "cid");
-		const JabberData *data = jabber_data_find_remote_by_cid(cid);
+		const JabberData *data = jabber_data_find_remote_by_cid(js, who, cid);
 
 		if (!data && cid != NULL) {
 			/* we haven't cached this already, let's add it */
 			JabberData *new_data = jabber_data_create_from_xml(data_tag);
 
 			if (new_data) {
-				jabber_data_associate_remote(new_data);
+				jabber_data_associate_remote(js, who, new_data);
 			}
 		}
 	}
@@ -634,7 +635,7 @@ void jabber_message_parse(JabberStream *
 					}
 
 					/* process any newly provided smileys */
-					jabber_message_add_remote_smileys(packet);
+					jabber_message_add_remote_smileys(js, to, packet);
 				}
 
 				/* reformat xhtml so that img tags with a "cid:" src gets
@@ -660,7 +661,7 @@ void jabber_message_parse(JabberStream *
 					if (purple_conv_custom_smiley_add(conv, alt, "cid", cid,
 						    TRUE)) {
 						const JabberData *data =
-								jabber_data_find_remote_by_cid(cid);
+								jabber_data_find_remote_by_cid(js, from, cid);
 						/* if data is already known, we write it immediatly */
 						if (data) {
 							purple_debug_info("jabber",


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