* @file smiley.c Simley API * 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 * 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 /**************************************************************************/ /* Main structures, members and constants */ /**************************************************************************/ PurpleStoredImage *img; /**< The id of the stored image with the char *shortcut; /**< Shortcut associated with the custom smiley. This field will work as a unique key by this API. */ char *checksum; /**< The smiley checksum. */ struct _PurpleSmileyClass GObjectClass parent_class; static GHashTable *smiley_shortcut_index = NULL; /* shortcut (char *) => smiley (PurpleSmiley*) */ static GHashTable *smiley_checksum_index = NULL; /* checksum (char *) => smiley (PurpleSmiley*) */ static guint save_timer = 0; static gboolean smileys_loaded = FALSE; static char *smileys_dir = NULL; #define SMILEYS_DEFAULT_FOLDER "custom_smiley" #define SMILEYS_LOG_ID "smileys" #define XML_FILE_NAME "smileys.xml" #define XML_ROOT_TAG "smileys" #define XML_PROFILE_TAG "profile" #define XML_PROFILE_NAME_ATTRIB_TAG "name" #define XML_ACCOUNT_TAG "account" #define XML_ACCOUNT_USERID_ATTRIB_TAG "userid" #define XML_SMILEY_SET_TAG "smiley_set" #define XML_SMILEY_TAG "smiley" #define XML_SHORTCUT_ATTRIB_TAG "shortcut" #define XML_CHECKSUM_ATRIB_TAG "checksum" #define XML_FILENAME_ATRIB_TAG "filename" /****************************************************************************** * XML descriptor file layout * ****************************************************************************** * Although we are creating the profile XML structure here, now we * So, we just add one profile named "default" that has no associated * account elements, and have only the smiley_set that will contain * all existent custom smiley. * It's our "Highlander Profile" :-) ****************************************************************************** * <profile name="john.doe"> * <account userid="john.doe@jabber.org"> * <account userid="john.doe@gmail.com"> * <smiley shortcut="aaa" checksum="xxxxxxxx" filename="file_name1.gif"/> * <smiley shortcut="bbb" checksum="yyyyyyy" filename="file_name2.gif"/> *****************************************************************************/ /********************************************************************* *********************************************************************/ static gboolean read_smiley_file(const char *path, guchar **data, size_t *len); static char *get_file_full_path(const char *filename); static PurpleSmiley *purple_smiley_create(const char *shortcut); static void purple_smiley_load_file(const char *shortcut, const char *checksum, purple_smiley_set_data_impl(PurpleSmiley *smiley, guchar *smiley_data, purple_smiley_data_store(PurpleStoredImage *stored_img); purple_smiley_data_unstore(const char *filename); /********************************************************************* *********************************************************************/ smiley_to_xmlnode(PurpleSmiley *smiley) xmlnode *smiley_node = NULL; smiley_node = xmlnode_new(XML_SMILEY_TAG); xmlnode_set_attrib(smiley_node, XML_SHORTCUT_ATTRIB_TAG, xmlnode_set_attrib(smiley_node, XML_CHECKSUM_ATRIB_TAG, xmlnode_set_attrib(smiley_node, XML_FILENAME_ATRIB_TAG, purple_imgstore_get_filename(smiley->img)); add_smiley_to_main_node(gpointer key, gpointer value, gpointer user_data) child_node = smiley_to_xmlnode(value); xmlnode_insert_child((xmlnode*)user_data, child_node); xmlnode *root_node, *profile_node, *smileyset_node; root_node = xmlnode_new(XML_ROOT_TAG); xmlnode_set_attrib(root_node, "version", "1.0"); /* See the top comments above to understand why initial tag elements * are not being considered by now. */ profile_node = xmlnode_new(XML_PROFILE_TAG); xmlnode_set_attrib(profile_node, XML_PROFILE_NAME_ATTRIB_TAG, "Default"); xmlnode_insert_child(root_node, profile_node); smileyset_node = xmlnode_new(XML_SMILEY_SET_TAG); xmlnode_insert_child(profile_node, smileyset_node); g_hash_table_foreach(smiley_shortcut_index, add_smiley_to_main_node, smileyset_node); purple_debug_error(SMILEYS_LOG_ID, "Attempted to save smileys before it " root_node = smileys_to_xmlnode(); data = xmlnode_to_formatted_str(root_node, NULL); purple_util_write_data_to_file(XML_FILE_NAME, data, -1); save_smileys_cb(gpointer data) purple_smileys_save(void) save_timer = purple_timeout_add_seconds(5, save_smileys_cb, NULL); /********************************************************************* *********************************************************************/ parse_smiley(xmlnode *smiley_node) const char *shortcut = NULL; const char *checksum = NULL; const char *filename = NULL; shortcut = xmlnode_get_attrib(smiley_node, XML_SHORTCUT_ATTRIB_TAG); checksum = xmlnode_get_attrib(smiley_node, XML_CHECKSUM_ATRIB_TAG); filename = xmlnode_get_attrib(smiley_node, XML_FILENAME_ATRIB_TAG); if ((shortcut == NULL) || (checksum == NULL) || (filename == NULL)) purple_smiley_load_file(shortcut, checksum, filename); purple_smileys_load(void) xmlnode *root_node, *profile_node; xmlnode *smileyset_node = NULL; root_node = purple_util_read_xml_from_file(XML_FILE_NAME, /* See the top comments above to understand why initial tag elements * are not being considered by now. */ profile_node = xmlnode_get_child(root_node, XML_PROFILE_TAG); smileyset_node = xmlnode_get_child(profile_node, XML_SMILEY_SET_TAG); smiley_node = xmlnode_get_child(smileyset_node, XML_SMILEY_TAG); for (; smiley_node != NULL; smiley_node = xmlnode_get_next_twin(smiley_node)) { parse_smiley(smiley_node); /********************************************************************* *********************************************************************/ #define PROP_SHORTCUT_S "shortcut" #define PROP_IMGSTORE_S "image" static guint signals[SIG_LAST]; static GObjectClass *parent_class; purple_smiley_init(GTypeInstance *instance, gpointer klass) PurpleSmiley *smiley = PURPLE_SMILEY(instance); PURPLE_DBUS_REGISTER_POINTER(smiley, PurpleSmiley); purple_smiley_get_property(GObject *object, guint param_id, GValue *value, PurpleSmiley *smiley = PURPLE_SMILEY(object); g_value_set_string(value, smiley->shortcut); g_value_set_pointer(value, smiley->img); G_OBJECT_WARN_INVALID_PROPERTY_ID(object, param_id, spec); purple_smiley_set_property(GObject *object, guint param_id, const GValue *value, PurpleSmiley *smiley = PURPLE_SMILEY(object); const char *shortcut = g_value_get_string(value); purple_smiley_set_shortcut(smiley, shortcut); PurpleStoredImage *img = g_value_get_pointer(value); purple_imgstore_unref(smiley->img); g_free(smiley->checksum); smiley->checksum = purple_util_get_image_checksum( purple_imgstore_get_data(img), purple_imgstore_get_size(img)); purple_smiley_data_store(img); g_object_notify(object, PROP_IMGSTORE_S); G_OBJECT_WARN_INVALID_PROPERTY_ID(object, param_id, spec); purple_smiley_finalize(GObject *obj) PurpleSmiley *smiley = PURPLE_SMILEY(obj); if (g_hash_table_lookup(smiley_shortcut_index, smiley->shortcut)) { g_hash_table_remove(smiley_shortcut_index, smiley->shortcut); g_hash_table_remove(smiley_checksum_index, smiley->checksum); g_free(smiley->shortcut); g_free(smiley->checksum); purple_smiley_data_unstore(purple_imgstore_get_filename(smiley->img)); purple_imgstore_unref(smiley->img); PURPLE_DBUS_UNREGISTER_POINTER(smiley); purple_smiley_dispose(GObject *gobj) g_signal_emit(gobj, signals[SIG_DESTROY], 0); parent_class->dispose(gobj); purple_smiley_class_init(PurpleSmileyClass *klass) GObjectClass *gobj_class = G_OBJECT_CLASS(klass); parent_class = g_type_class_peek_parent(klass); gobj_class->get_property = purple_smiley_get_property; gobj_class->set_property = purple_smiley_set_property; gobj_class->finalize = purple_smiley_finalize; gobj_class->dispose = purple_smiley_dispose; pspec = g_param_spec_string(PROP_SHORTCUT_S, _("Shortcut"), _("The text-shortcut for the smiley"), g_object_class_install_property(gobj_class, PROP_SHORTCUT, pspec); pspec = g_param_spec_pointer(PROP_IMGSTORE_S, _("Stored Image"), _("Stored Image. (that'll have to do for now)"), g_object_class_install_property(gobj_class, PROP_IMGSTORE, pspec); signals[SIG_DESTROY] = g_signal_new("destroy", G_OBJECT_CLASS_TYPE(klass), g_cclosure_marshal_VOID__VOID, purple_smiley_get_type(void) static const GTypeInfo info = { sizeof(PurpleSmileyClass), (GClassInitFunc)purple_smiley_class_init, type = g_type_register_static(G_TYPE_OBJECT, /********************************************************************* *********************************************************************/ static char *get_file_full_path(const char *filename) path = g_build_filename(purple_smileys_get_storing_dir(), filename, NULL); if (!g_file_test(path, G_FILE_TEST_EXISTS)) { purple_smiley_load_file(const char *shortcut, const char *checksum, const char *filename) PurpleSmiley *smiley = NULL; g_return_if_fail(shortcut != NULL); g_return_if_fail(checksum != NULL); g_return_if_fail(filename != NULL); fullpath = get_file_full_path(filename); purple_debug_error(SMILEYS_LOG_ID, "Path for filename %s doesn't exist\n", filename); smiley = purple_smiley_create(shortcut); smiley->checksum = g_strdup(checksum); if (read_smiley_file(fullpath, &smiley_data, &smiley_data_len)) purple_smiley_set_data_impl(smiley, smiley_data, purple_smiley_delete(smiley); purple_smiley_data_store(PurpleStoredImage *stored_img) g_return_if_fail(stored_img != NULL); dirname = purple_smileys_get_storing_dir(); path = g_build_filename(dirname, purple_imgstore_get_filename(stored_img), NULL); if (!g_file_test(dirname, G_FILE_TEST_IS_DIR)) { purple_debug_info(SMILEYS_LOG_ID, "Creating smileys directory.\n"); if (g_mkdir(dirname, S_IRUSR | S_IWUSR | S_IXUSR) < 0) { purple_debug_error(SMILEYS_LOG_ID, "Unable to create directory %s: %s\n", dirname, g_strerror(errno)); if ((file = g_fopen(path, "wb")) != NULL) { if (!fwrite(purple_imgstore_get_data(stored_img), purple_imgstore_get_size(stored_img), 1, file)) { purple_debug_error(SMILEYS_LOG_ID, "Error writing %s: %s\n", path, g_strerror(errno)); purple_debug_info(SMILEYS_LOG_ID, "Wrote cache file: %s\n", path); purple_debug_error(SMILEYS_LOG_ID, "Unable to create file %s: %s\n", path, g_strerror(errno)); purple_smiley_data_unstore(const char *filename) g_return_if_fail(filename != NULL); dirname = purple_smileys_get_storing_dir(); path = g_build_filename(dirname, filename, NULL); if (g_file_test(path, G_FILE_TEST_EXISTS)) { purple_debug_error(SMILEYS_LOG_ID, "Failed to delete %s: %s\n", path, g_strerror(errno)); purple_debug_info(SMILEYS_LOG_ID, "Deleted cache file: %s\n", path); read_smiley_file(const char *path, guchar **data, size_t *len) if (!g_file_get_contents(path, (gchar **)data, len, &err)) { purple_debug_error(SMILEYS_LOG_ID, "Error reading %s: %s\n", static PurpleStoredImage * purple_smiley_data_new(guchar *smiley_data, size_t smiley_data_len) PurpleStoredImage *stored_img; g_return_val_if_fail(smiley_data != NULL, NULL); g_return_val_if_fail(smiley_data_len > 0, NULL); filename = purple_util_get_image_filename(smiley_data, smiley_data_len); stored_img = purple_imgstore_add(smiley_data, smiley_data_len, filename); purple_smiley_set_data_impl(PurpleSmiley *smiley, guchar *smiley_data, PurpleStoredImage *old_img, *new_img; const char *old_filename = NULL; const char *new_filename = NULL; g_return_if_fail(smiley != NULL); g_return_if_fail(smiley_data != NULL); g_return_if_fail(smiley_data_len > 0); new_img = purple_smiley_data_new(smiley_data, smiley_data_len); g_object_set(G_OBJECT(smiley), PROP_IMGSTORE_S, new_img, NULL); /* If the old and new image files have different names we need * to unstore old image file. */ old_filename = purple_imgstore_get_filename(old_img); new_filename = purple_imgstore_get_filename(smiley->img); if (g_ascii_strcasecmp(old_filename, new_filename)) purple_smiley_data_unstore(old_filename); purple_imgstore_unref(old_img); /***************************************************************************** *****************************************************************************/ purple_smiley_create(const char *shortcut) smiley = PURPLE_SMILEY(g_object_new(PURPLE_TYPE_SMILEY, PROP_SHORTCUT_S, shortcut, NULL)); purple_smiley_new(PurpleStoredImage *img, const char *shortcut) PurpleSmiley *smiley = NULL; g_return_val_if_fail(shortcut != NULL, NULL); g_return_val_if_fail(img != NULL, NULL); smiley = purple_smileys_find_by_shortcut(shortcut); smiley = purple_smiley_create(shortcut); g_object_set(G_OBJECT(smiley), PROP_IMGSTORE_S, img, NULL); purple_smiley_new_from_stream(const char *shortcut, guchar *smiley_data, g_return_val_if_fail(shortcut != NULL, NULL); g_return_val_if_fail(smiley_data != NULL, NULL); g_return_val_if_fail(smiley_data_len > 0, NULL); smiley = purple_smileys_find_by_shortcut(shortcut); /* purple_smiley_create() sets shortcut */ smiley = purple_smiley_create(shortcut); purple_smiley_set_data_impl(smiley, smiley_data, smiley_data_len); purple_smiley_data_store(smiley->img); purple_smiley_new_from_file(const char *shortcut, const char *filepath) PurpleSmiley *smiley = NULL; g_return_val_if_fail(shortcut != NULL, NULL); g_return_val_if_fail(filepath != NULL, NULL); if (read_smiley_file(filepath, &smiley_data, &smiley_data_len)) { smiley = purple_smiley_new_from_stream(shortcut, smiley_data, purple_smiley_delete(PurpleSmiley *smiley) g_return_if_fail(smiley != NULL); purple_smiley_set_shortcut(PurpleSmiley *smiley, const char *shortcut) g_return_val_if_fail(smiley != NULL, FALSE); g_return_val_if_fail(shortcut != NULL, FALSE); /* Check out whether the new shortcut is already being used. */ if (g_hash_table_lookup(smiley_shortcut_index, shortcut)) /* Remove the old shortcut. */ g_hash_table_remove(smiley_shortcut_index, smiley->shortcut); /* Insert the new shortcut. */ g_hash_table_insert(smiley_shortcut_index, g_strdup(shortcut), smiley); g_free(smiley->shortcut); smiley->shortcut = g_strdup(shortcut); g_object_notify(G_OBJECT(smiley), PROP_SHORTCUT_S); purple_smiley_set_data(PurpleSmiley *smiley, guchar *smiley_data, g_return_if_fail(smiley != NULL); g_return_if_fail(smiley_data != NULL); g_return_if_fail(smiley_data_len > 0); /* Remove the previous entry */ g_hash_table_remove(smiley_checksum_index, smiley->checksum); /* Update the file data. This also updates the checksum. */ purple_smiley_set_data_impl(smiley, smiley_data, smiley_data_len); /* Reinsert the index item. */ g_hash_table_insert(smiley_checksum_index, g_strdup(smiley->checksum), smiley); purple_smiley_get_stored_image(const PurpleSmiley *smiley) return purple_imgstore_ref(smiley->img); const char *purple_smiley_get_shortcut(const PurpleSmiley *smiley) g_return_val_if_fail(smiley != NULL, NULL); purple_smiley_get_checksum(const PurpleSmiley *smiley) g_return_val_if_fail(smiley != NULL, NULL); purple_smiley_get_data(const PurpleSmiley *smiley, size_t *len) g_return_val_if_fail(smiley != NULL, NULL); *len = purple_imgstore_get_size(smiley->img); return purple_imgstore_get_data(smiley->img); purple_smiley_get_extension(const PurpleSmiley *smiley) return purple_imgstore_get_extension(smiley->img); char *purple_smiley_get_full_path(PurpleSmiley *smiley) g_return_val_if_fail(smiley != NULL, NULL); return get_file_full_path(purple_imgstore_get_filename(smiley->img)); static void add_smiley_to_list(gpointer key, gpointer value, gpointer user_data) GList** returninglist = (GList**)user_data; *returninglist = g_list_append(*returninglist, value); purple_smileys_get_all(void) GList *returninglist = NULL; g_hash_table_foreach(smiley_shortcut_index, add_smiley_to_list, &returninglist); purple_smileys_find_by_shortcut(const char *shortcut) g_return_val_if_fail(shortcut != NULL, NULL); return g_hash_table_lookup(smiley_shortcut_index, shortcut); purple_smileys_find_by_checksum(const char *checksum) g_return_val_if_fail(checksum != NULL, NULL); return g_hash_table_lookup(smiley_checksum_index, checksum); purple_smileys_get_storing_dir(void) purple_smileys_init(void) smiley_shortcut_index = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, NULL); smiley_checksum_index = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, NULL); smileys_dir = g_build_filename(purple_user_dir(), SMILEYS_DEFAULT_FOLDER, NULL); purple_smileys_uninit(void) purple_timeout_remove(save_timer); g_hash_table_destroy(smiley_shortcut_index); g_hash_table_destroy(smiley_checksum_index);