--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/libpurple/protocols/gg/image-prpl.c Fri Apr 11 16:23:12 2014 +0530
@@ -0,0 +1,308 @@
+/* purple
+ *
+ * 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.
+ *
+ * Rewritten from scratch during Google Summer of Code 2012
+ * by Tomek Wasilczyk (http://www.wasilczyk.pl).
+ *
+ * Previously implemented by:
+ * - Arkadiusz Miskiewicz <misiek@pld.org.pl> - first implementation (2001);
+ * - Bartosz Oler <bartosz@bzimage.us> - reimplemented during GSoC 2005;
+ * - Krzysztof Klinikowski <grommasher@gmail.com> - some parts (2009-2011).
+ *
+ * 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 "image-prpl.h"
+
+#include <debug.h>
+#include <glibcompat.h>
+
+#include "gg.h"
+#include "utils.h"
+
+#include <image-store.h>
+
+struct _ggp_image_session_data
+{
+ GHashTable *got_images;
+ GHashTable *incoming_images;
+ GHashTable *sent_images;
+};
+
+typedef struct
+{
+ PurpleImage *image;
+ gchar *conv_name; /* TODO: callback */
+} ggp_image_sent;
+
+typedef struct
+{
+ GList *listeners;
+} ggp_image_requested;
+
+typedef struct
+{
+ ggp_image_request_cb cb;
+ gpointer user_data;
+} ggp_image_requested_listener;
+
+static void ggp_image_sent_free(gpointer _sent_image)
+{
+ ggp_image_sent *sent_image = _sent_image;
+ g_object_unref(sent_image->image);
+ g_free(sent_image->conv_name);
+ g_free(sent_image);
+}
+
+static void ggp_image_requested_free(gpointer data)
+{
+ ggp_image_requested *req = data;
+ g_list_free_full(req->listeners, g_free);
+ g_free(req);
+}
+
+static uint64_t ggp_image_params_to_id(uint32_t crc32, uint32_t size)
+{
+ return ((uint64_t)crc32 << 32) | size;
+}
+
+static inline ggp_image_session_data *
+ggp_image_get_sdata(PurpleConnection *gc)
+{
+ GGPInfo *accdata = purple_connection_get_protocol_data(gc);
+ return accdata->image_data;
+}
+
+void ggp_image_setup(PurpleConnection *gc)
+{
+ GGPInfo *accdata = purple_connection_get_protocol_data(gc);
+ ggp_image_session_data *sdata = g_new0(ggp_image_session_data, 1);
+
+ accdata->image_data = sdata;
+
+ sdata->got_images = g_hash_table_new_full(
+ g_int64_hash, g_int64_equal, g_free, g_object_unref);
+ sdata->incoming_images = g_hash_table_new_full(
+ g_int64_hash, g_int64_equal, g_free,
+ ggp_image_requested_free);
+ sdata->sent_images = g_hash_table_new_full(
+ g_int64_hash, g_int64_equal, g_free,
+ ggp_image_sent_free);
+}
+
+void ggp_image_cleanup(PurpleConnection *gc)
+{
+ ggp_image_session_data *sdata = ggp_image_get_sdata(gc);
+
+ g_hash_table_destroy(sdata->got_images);
+ g_hash_table_destroy(sdata->incoming_images);
+ g_hash_table_destroy(sdata->sent_images);
+ g_free(sdata);
+}
+
+ggp_image_prepare_result
+ggp_image_prepare(PurpleConversation *conv, PurpleImage *image, uint64_t *id)
+{
+ PurpleConnection *gc = purple_conversation_get_connection(conv);
+ ggp_image_session_data *sdata = ggp_image_get_sdata(gc);
+ size_t image_size;
+ gconstpointer image_data;
+ uint32_t image_crc;
+ ggp_image_sent *sent_image;
+
+ g_return_val_if_fail(image, GGP_IMAGE_PREPARE_FAILURE);
+
+ image_size = purple_image_get_size(image);
+
+ if (image_size > GGP_IMAGE_SIZE_MAX) {
+ purple_debug_warning("gg", "ggp_image_prepare: image "
+ "is too big (max bytes: %d)\n", GGP_IMAGE_SIZE_MAX);
+ return GGP_IMAGE_PREPARE_TOO_BIG;
+ }
+
+ g_object_ref(image);
+ image_data = purple_image_get_data(image);
+ image_crc = gg_crc32(0, image_data, image_size);
+
+ purple_debug_info("gg", "ggp_image_prepare: image prepared "
+ "[crc=%u, size=%" G_GSIZE_FORMAT "]",
+ image_crc, image_size);
+
+ *id = ggp_image_params_to_id(image_crc, image_size);
+
+ g_object_ref(image);
+ sent_image = g_new(ggp_image_sent, 1);
+ sent_image->image = image;
+ sent_image->conv_name = g_strdup(purple_conversation_get_name(conv));
+ g_hash_table_insert(sdata->sent_images, ggp_uint64dup(*id),
+ sent_image);
+
+ return GGP_IMAGE_PREPARE_OK;
+}
+
+void ggp_image_recv(PurpleConnection *gc,
+ const struct gg_event_image_reply *image_reply)
+{
+ ggp_image_session_data *sdata = ggp_image_get_sdata(gc);
+ PurpleImage *img;
+ ggp_image_requested *req;
+ GList *it;
+ uint64_t id;
+
+ img = purple_image_new_from_data(
+ g_memdup(image_reply->image, image_reply->size),
+ image_reply->size);
+ purple_image_set_friendly_filename(img, image_reply->filename);
+
+ id = ggp_image_params_to_id(image_reply->crc32, image_reply->size);
+
+ purple_debug_info("gg", "ggp_image_recv: got image "
+ "[crc=%u, size=%u, filename=%s, id=" GGP_IMAGE_ID_FORMAT "]",
+ image_reply->crc32, image_reply->size,
+ image_reply->filename, id);
+
+ g_object_ref(img);
+ g_hash_table_insert(sdata->got_images, ggp_uint64dup(id), img);
+
+ req = g_hash_table_lookup(sdata->incoming_images, &id);
+ if (!req) {
+ purple_debug_warning("gg", "ggp_image_recv: "
+ "image " GGP_IMAGE_ID_FORMAT " wasn't requested\n",
+ id);
+ g_object_unref(img);
+ return;
+ }
+
+ it = g_list_first(req->listeners);
+ while (it) {
+ ggp_image_requested_listener *listener = it->data;
+ it = g_list_next(it);
+
+ listener->cb(gc, id, img, listener->user_data);
+ }
+ g_object_unref(img);
+ g_hash_table_remove(sdata->incoming_images, &id);
+}
+
+void ggp_image_send(PurpleConnection *gc,
+ const struct gg_event_image_request *image_request)
+{
+ GGPInfo *accdata = purple_connection_get_protocol_data(gc);
+ ggp_image_session_data *sdata = ggp_image_get_sdata(gc);
+ ggp_image_sent *sent_image;
+ PurpleConversation *conv;
+ uint64_t id;
+ gchar *gg_filename;
+
+ purple_debug_info("gg", "ggp_image_send: got image request "
+ "[uin=%u, crc=%u, size=%u]\n",
+ image_request->sender,
+ image_request->crc32,
+ image_request->size);
+
+ id = ggp_image_params_to_id(image_request->crc32, image_request->size);
+
+ sent_image = g_hash_table_lookup(sdata->sent_images, &id);
+
+ if (sent_image == NULL && image_request->sender == ggp_str_to_uin(
+ purple_account_get_username(purple_connection_get_account(gc))))
+ {
+ purple_debug_misc("gg", "ggp_image_send: requested image "
+ "not found, but this may be another session request\n");
+ return;
+ }
+ if (sent_image == NULL) {
+ purple_debug_warning("gg", "ggp_image_send: requested image "
+ "not found\n");
+ return;
+ }
+
+ purple_debug_misc("gg", "ggp_image_send: requested image found "
+ "[id=" GGP_IMAGE_ID_FORMAT ", conv=%s]\n",
+ id, sent_image->conv_name);
+
+ g_return_if_fail(sent_image->image);
+
+ /* TODO: check allowed recipients */
+ gg_filename = g_strdup_printf(GGP_IMAGE_ID_FORMAT, id);
+ gg_image_reply(accdata->session, image_request->sender,
+ gg_filename,
+ purple_image_get_data(sent_image->image),
+ purple_image_get_size(sent_image->image));
+ g_free(gg_filename);
+
+ conv = purple_conversations_find_with_account(
+ sent_image->conv_name,
+ purple_connection_get_account(gc));
+ if (conv != NULL) {
+ gchar *msg = g_strdup_printf(_("Image delivered to %u."),
+ image_request->sender);
+ purple_conversation_write(conv, "", msg,
+ PURPLE_MESSAGE_NO_LOG | PURPLE_MESSAGE_NOTIFY,
+ time(NULL));
+ g_free(msg);
+ }
+}
+
+void ggp_image_request(PurpleConnection *gc, uin_t uin, uint64_t id,
+ ggp_image_request_cb cb, gpointer user_data)
+{
+ GGPInfo *accdata = purple_connection_get_protocol_data(gc);
+ ggp_image_session_data *sdata = ggp_image_get_sdata(gc);
+ ggp_image_requested *req;
+ ggp_image_requested_listener *listener;
+ uint32_t crc = id >> 32;
+ uint32_t size = id;
+
+ if (size > GGP_IMAGE_SIZE_MAX && crc <= GGP_IMAGE_SIZE_MAX) {
+ uint32_t tmp;
+ purple_debug_warning("gg", "ggp_image_request: "
+ "crc and size are swapped!\n");
+ tmp = crc;
+ crc = size;
+ size = tmp;
+ }
+
+ req = g_hash_table_lookup(sdata->incoming_images, &id);
+ if (!req) {
+ req = g_new0(ggp_image_requested, 1);
+ g_hash_table_insert(sdata->incoming_images,
+ ggp_uint64dup(id), req);
+ purple_debug_info("gg", "ggp_image_request: "
+ "requesting image " GGP_IMAGE_ID_FORMAT "\n", id);
+ if (gg_image_request(accdata->session, uin, size, crc) != 0)
+ purple_debug_error("gg", "ggp_image_request: failed\n");
+ } else {
+ purple_debug_info("gg", "ggp_image_request: "
+ "image " GGP_IMAGE_ID_FORMAT " already requested\n",
+ id);
+ }
+
+ listener = g_new0(ggp_image_requested_listener, 1);
+ listener->cb = cb;
+ listener->user_data = user_data;
+ req->listeners = g_list_append(req->listeners, listener);
+}
+
+PurpleImage *
+ggp_image_get_cached(PurpleConnection *gc, uint64_t id)
+{
+ ggp_image_session_data *sdata = ggp_image_get_sdata(gc);
+
+ return g_hash_table_lookup(sdata->got_images, &id);
+}