pidgin/pidgin

Route GLib debug logging directly to the Finch debug window

2021-10-18, Elliott Sales de Andrade
1896a80ff8e3
Route GLib debug logging directly to the Finch debug window

Instead of flowing through purple debug, this merges some bits of the existing GLib log handler, and the purple debug printer.

Testing Done:
Open the Debug window an see some `GLib-*` outputs.

Reviewed at https://reviews.imfreedom.org/r/1057/
/*
* purple - Jabber Protocol Plugin
*
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*
*/
#include <config.h>
#include <glib/gi18n-lib.h>
#include <purple.h>
#include "libpurple/glibcompat.h"
#include <libsoup/soup.h>
#include "useravatar.h"
#include "pep.h"
#define MAX_HTTP_BUDDYICON_BYTES (200 * 1024)
static void update_buddy_metadata(JabberStream *js, const char *from, PurpleXmlNode *items);
void jabber_avatar_init(void)
{
jabber_add_feature(NS_AVATAR_1_1_METADATA,
jabber_pep_namespace_only_when_pep_enabled_cb);
jabber_add_feature(NS_AVATAR_1_1_DATA,
jabber_pep_namespace_only_when_pep_enabled_cb);
jabber_pep_register_handler(NS_AVATAR_1_1_METADATA,
update_buddy_metadata);
}
void jabber_avatar_set(JabberStream *js, PurpleImage *img)
{
PurpleXmlNode *publish, *metadata, *item;
if (!js->pep)
return;
if (!img) {
publish = purple_xmlnode_new("publish");
purple_xmlnode_set_attrib(publish, "node", NS_AVATAR_1_1_METADATA);
item = purple_xmlnode_new_child(publish, "item");
metadata = purple_xmlnode_new_child(item, "metadata");
purple_xmlnode_set_namespace(metadata, NS_AVATAR_1_1_METADATA);
/* publish */
jabber_pep_publish(js, publish);
} else {
/*
* TODO: This is pretty gross. The Jabber protocol really shouldn't
* do voodoo to try to determine the image type, height
* and width.
*/
/* A PNG header, including the IHDR, but nothing else */
/* ATTN: this is in network byte order! */
const struct {
guchar signature[8]; /* must be hex 89 50 4E 47 0D 0A 1A 0A */
struct {
guint32 length; /* must be 0x0d */
guchar type[4]; /* must be 'I' 'H' 'D' 'R' */
guint32 width;
guint32 height;
guchar bitdepth;
guchar colortype;
guchar compression;
guchar filter;
guchar interlace;
} ihdr;
} *png = NULL;
if (purple_image_get_data_size(img) > sizeof(*png))
png = purple_image_get_data(img);
/* check if the data is a valid png file (well, at least to some extent) */
if(png && png->signature[0] == 0x89 &&
png->signature[1] == 0x50 &&
png->signature[2] == 0x4e &&
png->signature[3] == 0x47 &&
png->signature[4] == 0x0d &&
png->signature[5] == 0x0a &&
png->signature[6] == 0x1a &&
png->signature[7] == 0x0a &&
GUINT32_FROM_BE(png->ihdr.length) == 0x0d &&
png->ihdr.type[0] == 'I' &&
png->ihdr.type[1] == 'H' &&
png->ihdr.type[2] == 'D' &&
png->ihdr.type[3] == 'R') {
/* parse PNG header to get the size of the image (yes, this is required) */
guint32 width = GUINT32_FROM_BE(png->ihdr.width);
guint32 height = GUINT32_FROM_BE(png->ihdr.height);
PurpleXmlNode *data, *info;
char *lengthstring, *widthstring, *heightstring;
/* compute the sha1 hash */
char *hash = g_compute_checksum_for_data(
G_CHECKSUM_SHA1,
purple_image_get_data(img),
purple_image_get_data_size(img));
char *base64avatar = g_base64_encode(
purple_image_get_data(img),
purple_image_get_data_size(img));
publish = purple_xmlnode_new("publish");
purple_xmlnode_set_attrib(publish, "node", NS_AVATAR_1_1_DATA);
item = purple_xmlnode_new_child(publish, "item");
purple_xmlnode_set_attrib(item, "id", hash);
data = purple_xmlnode_new_child(item, "data");
purple_xmlnode_set_namespace(data, NS_AVATAR_1_1_DATA);
purple_xmlnode_insert_data(data, base64avatar, -1);
/* publish the avatar itself */
jabber_pep_publish(js, publish);
g_free(base64avatar);
lengthstring = g_strdup_printf("%" G_GSIZE_FORMAT,
purple_image_get_data_size(img));
widthstring = g_strdup_printf("%u", width);
heightstring = g_strdup_printf("%u", height);
/* publish the metadata */
publish = purple_xmlnode_new("publish");
purple_xmlnode_set_attrib(publish, "node", NS_AVATAR_1_1_METADATA);
item = purple_xmlnode_new_child(publish, "item");
purple_xmlnode_set_attrib(item, "id", hash);
metadata = purple_xmlnode_new_child(item, "metadata");
purple_xmlnode_set_namespace(metadata, NS_AVATAR_1_1_METADATA);
info = purple_xmlnode_new_child(metadata, "info");
purple_xmlnode_set_attrib(info, "id", hash);
purple_xmlnode_set_attrib(info, "type", "image/png");
purple_xmlnode_set_attrib(info, "bytes", lengthstring);
purple_xmlnode_set_attrib(info, "width", widthstring);
purple_xmlnode_set_attrib(info, "height", heightstring);
jabber_pep_publish(js, publish);
g_free(lengthstring);
g_free(widthstring);
g_free(heightstring);
g_free(hash);
} else {
purple_debug_error("jabber", "Cannot set PEP avatar to non-PNG data\n");
}
}
}
static void
do_got_own_avatar_cb(JabberStream *js, const char *from, PurpleXmlNode *items)
{
PurpleXmlNode *item = NULL, *metadata = NULL, *info = NULL;
PurpleAccount *account = purple_connection_get_account(js->gc);
const char *server_hash = NULL;
if (items && (item = purple_xmlnode_get_child(items, "item")) &&
(metadata = purple_xmlnode_get_child(item, "metadata")) &&
(info = purple_xmlnode_get_child(metadata, "info"))) {
server_hash = purple_xmlnode_get_attrib(info, "id");
}
/*
* If we have an avatar and the server returned an error/malformed data,
* push our avatar. If the server avatar doesn't match the local one, push
* our avatar.
*/
if ((!items || !metadata) ||
!purple_strequal(server_hash, js->initial_avatar_hash)) {
PurpleImage *img = purple_buddy_icons_find_account_icon(account);
jabber_avatar_set(js, img);
if (img)
g_object_unref(img);
}
}
void jabber_avatar_fetch_mine(JabberStream *js)
{
if (js->initial_avatar_hash) {
jabber_pep_request_item(js, NULL, NS_AVATAR_1_1_METADATA, NULL,
do_got_own_avatar_cb);
}
}
typedef struct {
JabberStream *js;
char *from;
char *id;
} JabberBuddyAvatarUpdateURLInfo;
static void
do_buddy_avatar_update_fromurl(G_GNUC_UNUSED SoupSession *session,
SoupMessage *msg, gpointer data)
{
JabberBuddyAvatarUpdateURLInfo *info = data;
gpointer icon_data;
if (!SOUP_STATUS_IS_SUCCESSFUL(msg->status_code)) {
purple_debug_error("jabber",
"do_buddy_avatar_update_fromurl got error \"%s\"",
msg->reason_phrase);
goto out;
}
icon_data = g_memdup2(msg->response_body->data, msg->response_body->length);
purple_buddy_icons_set_for_user(purple_connection_get_account(info->js->gc),
info->from, icon_data,
msg->response_body->length, info->id);
out:
g_free(info->from);
g_free(info->id);
g_free(info);
}
static void
do_buddy_avatar_update_data(JabberStream *js, const char *from, PurpleXmlNode *items)
{
PurpleXmlNode *item, *data;
const char *checksum;
char *b64data;
void *img;
size_t size;
if(!items)
return;
item = purple_xmlnode_get_child(items, "item");
if(!item)
return;
data = purple_xmlnode_get_child(item, "data");
if(!data)
return;
checksum = purple_xmlnode_get_attrib(item,"id");
if(!checksum)
return;
b64data = purple_xmlnode_get_data(data);
if(!b64data)
return;
img = g_base64_decode(b64data, &size);
if(!img) {
g_free(b64data);
return;
}
purple_buddy_icons_set_for_user(purple_connection_get_account(js->gc), from, img, size, checksum);
g_free(b64data);
}
static void
update_buddy_metadata(JabberStream *js, const char *from, PurpleXmlNode *items)
{
PurpleBuddy *buddy = purple_blist_find_buddy(purple_connection_get_account(js->gc), from);
const char *checksum;
PurpleXmlNode *item, *metadata;
if(!buddy)
return;
if (!items)
return;
item = purple_xmlnode_get_child(items,"item");
if (!item)
return;
metadata = purple_xmlnode_get_child(item, "metadata");
if(!metadata)
return;
checksum = purple_buddy_icons_get_checksum_for_user(buddy);
/* <stop/> was the pre-v1.1 method of publishing an empty avatar */
if(purple_xmlnode_get_child(metadata, "stop")) {
purple_buddy_icons_set_for_user(purple_connection_get_account(js->gc), from, NULL, 0, NULL);
} else {
PurpleXmlNode *info, *goodinfo = NULL;
gboolean has_children = FALSE;
/* iterate over all info nodes to get one we can use */
for(info = metadata->child; info; info = info->next) {
if(info->type == PURPLE_XMLNODE_TYPE_TAG)
has_children = TRUE;
if(info->type == PURPLE_XMLNODE_TYPE_TAG && purple_strequal(info->name,"info")) {
const char *type = purple_xmlnode_get_attrib(info,"type");
const char *id = purple_xmlnode_get_attrib(info,"id");
if(checksum && id && purple_strequal(id, checksum)) {
/* we already have that avatar, so we don't have to do anything */
goodinfo = NULL;
break;
}
/* We'll only pick the png one for now. It's a very nice image format anyways. */
if(id && !goodinfo && purple_strequal(type, "image/png"))
goodinfo = info;
}
}
if(has_children == FALSE) {
purple_buddy_icons_set_for_user(purple_connection_get_account(js->gc), from, NULL, 0, NULL);
} else if(goodinfo) {
const char *url = purple_xmlnode_get_attrib(goodinfo, "url");
const char *id = purple_xmlnode_get_attrib(goodinfo,"id");
/* the avatar might either be stored in a pep node, or on a HTTP(S) URL */
if(!url) {
jabber_pep_request_item(js, from, NS_AVATAR_1_1_DATA, id,
do_buddy_avatar_update_data);
} else {
SoupMessage *msg;
JabberBuddyAvatarUpdateURLInfo *info = g_new0(JabberBuddyAvatarUpdateURLInfo, 1);
info->js = js;
info->from = g_strdup(from);
info->id = g_strdup(id);
msg = soup_message_new("GET", url);
soup_session_queue_message(js->http_conns, msg,
do_buddy_avatar_update_fromurl,
info);
}
}
}
}