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Diffstat (limited to 'camel/camel-store.c')
| -rw-r--r-- | camel/camel-store.c | 778 |
1 files changed, 0 insertions, 778 deletions
diff --git a/camel/camel-store.c b/camel/camel-store.c deleted file mode 100644 index 5b48299231..0000000000 --- a/camel/camel-store.c +++ /dev/null @@ -1,778 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* camel-store.c : Abstract class for an email store */ - -/* - * - * Authors: - * Bertrand Guiheneuf <bertrand@helixcode.com> - * Dan Winship <danw@helixcode.com> - * - * Copyright 1999, 2000 Helix Code, Inc. (http://www.helixcode.com) - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - * USA - */ -#include <config.h> -#include <string.h> - -#include "camel-store.h" -#include "camel-folder.h" -#include "camel-exception.h" - -#include "camel-private.h" - -static CamelServiceClass *parent_class = NULL; - -/* Returns the class for a CamelStore */ -#define CS_CLASS(so) CAMEL_STORE_CLASS (CAMEL_OBJECT_GET_CLASS(so)) - -static CamelFolder *get_folder (CamelStore *store, const char *folder_name, - guint32 flags, CamelException *ex); -static void delete_folder (CamelStore *store, const char *folder_name, - CamelException *ex); -static void rename_folder (CamelStore *store, const char *old_name, - const char *new_name, CamelException *ex); - -static char *get_folder_name (CamelStore *store, const char *folder_name, - CamelException *ex); -static char *get_root_folder_name (CamelStore *store, CamelException *ex); -static char *get_default_folder_name (CamelStore *store, CamelException *ex); - -static void store_sync (CamelStore *store, CamelException *ex); -static CamelFolderInfo *get_folder_info (CamelStore *store, const char *top, - gboolean fast, gboolean recursive, - gboolean subscribed_only, - CamelException *ex); -static void free_folder_info (CamelStore *store, CamelFolderInfo *tree); - -static CamelFolder *lookup_folder (CamelStore *store, const char *folder_name); -static void cache_folder (CamelStore *store, const char *folder_name, - CamelFolder *folder); -static void uncache_folder (CamelStore *store, CamelFolder *folder); - -static gboolean folder_subscribed (CamelStore *store, const char *folder_name); -static void subscribe_folder (CamelStore *store, const char *folder_name, CamelException *ex); -static void unsubscribe_folder (CamelStore *store, const char *folder_name, CamelException *ex); - -static void -camel_store_class_init (CamelStoreClass *camel_store_class) -{ - parent_class = CAMEL_SERVICE_CLASS (camel_type_get_global_classfuncs (camel_service_get_type ())); - - /* virtual method definition */ - camel_store_class->get_folder = get_folder; - camel_store_class->delete_folder = delete_folder; - camel_store_class->rename_folder = rename_folder; - camel_store_class->get_folder_name = get_folder_name; - camel_store_class->get_root_folder_name = get_root_folder_name; - camel_store_class->get_default_folder_name = get_default_folder_name; - camel_store_class->sync = store_sync; - camel_store_class->get_folder_info = get_folder_info; - camel_store_class->free_folder_info = free_folder_info; - camel_store_class->lookup_folder = lookup_folder; - camel_store_class->cache_folder = cache_folder; - camel_store_class->uncache_folder = uncache_folder; - camel_store_class->folder_subscribed = folder_subscribed; - camel_store_class->subscribe_folder = subscribe_folder; - camel_store_class->unsubscribe_folder = unsubscribe_folder; -} - -static void -camel_store_init (void *o, void *k) -{ - CamelStore *store = o; - - if (store->folders == NULL) - store->folders = g_hash_table_new (g_str_hash, g_str_equal); - store->flags = 0; - - store->priv = g_malloc0(sizeof(*store->priv)); -#ifdef ENABLE_THREADS - store->priv->folder_lock = g_mutex_new(); - store->priv->cache_lock = g_mutex_new(); -#endif -} - -static void -camel_store_finalize (CamelObject *object) -{ - CamelStore *store = CAMEL_STORE (object); - - if (store->folders) { - if (g_hash_table_size (store->folders) != 0) { - g_warning ("Folder cache for store %p contains " - "%d folders at destruction.", store, - g_hash_table_size (store->folders)); - } - g_hash_table_destroy (store->folders); - } - -#ifdef ENABLE_THREADS - g_mutex_free(store->priv->folder_lock); - g_mutex_free(store->priv->cache_lock); -#endif - g_free(store->priv); -} - - -CamelType -camel_store_get_type (void) -{ - static CamelType camel_store_type = CAMEL_INVALID_TYPE; - - if (camel_store_type == CAMEL_INVALID_TYPE) { - camel_store_type = camel_type_register (CAMEL_SERVICE_TYPE, "CamelStore", - sizeof (CamelStore), - sizeof (CamelStoreClass), - (CamelObjectClassInitFunc) camel_store_class_init, - NULL, - (CamelObjectInitFunc) camel_store_init, - (CamelObjectFinalizeFunc) camel_store_finalize ); - } - - return camel_store_type; -} - - -static CamelFolder * -get_folder(CamelStore *store, const char *folder_name, guint32 flags, CamelException *ex) -{ - g_warning("CamelStore::get_folder not implemented for `%s'", - camel_type_to_name(CAMEL_OBJECT_GET_TYPE(store))); - return NULL; -} - -static void -delete_folder (CamelStore *store, const char *folder_name, CamelException *ex) -{ - g_warning ("CamelStore::delete_folder not implemented for `%s'", - camel_type_to_name (CAMEL_OBJECT_GET_TYPE (store))); -} - -static void -rename_folder (CamelStore *store, const char *old_name, - const char *new_name, CamelException *ex) -{ - g_warning ("CamelStore::rename_folder not implemented for `%s'", - camel_type_to_name (CAMEL_OBJECT_GET_TYPE (store))); -} - - -/* CamelStore::get_folder_name should: - * a) make sure that the provided name is valid - * b) return it in canonical form, in allocated memory. - * - * This is used to make sure that duplicate names for the same folder - * don't result in duplicate cache entries. - */ -static char * -get_folder_name (CamelStore *store, const char *folder_name, - CamelException *ex) -{ - g_warning ("CamelStore::get_folder_name not implemented for `%s'", - camel_type_to_name (CAMEL_OBJECT_GET_TYPE (store))); - return NULL; -} - -static char * -get_root_folder_name (CamelStore *store, CamelException *ex) -{ - return g_strdup ("/"); -} - -static char * -get_default_folder_name (CamelStore *store, CamelException *ex) -{ - return CS_CLASS (store)->get_root_folder_name (store, ex); -} - -static CamelFolder * -lookup_folder (CamelStore *store, const char *folder_name) -{ - CamelFolder *folder = NULL; - - CAMEL_STORE_LOCK(store, cache_lock); - - if (store->folders) { - folder = g_hash_table_lookup (store->folders, folder_name); - if (folder) - camel_object_ref(CAMEL_OBJECT(folder)); - } - - CAMEL_STORE_UNLOCK(store, cache_lock); - - return folder; -} - -static void folder_finalize (CamelObject *folder, gpointer event_data, gpointer user_data) -{ - CS_CLASS (user_data)->uncache_folder (CAMEL_STORE(user_data), CAMEL_FOLDER(folder)); -} - -static void -cache_folder (CamelStore *store, const char *folder_name, CamelFolder *folder) -{ - CAMEL_STORE_LOCK(store, cache_lock); - - if (store->folders) { - if (g_hash_table_lookup (store->folders, folder_name)) { - g_warning ("Caching folder %s that already exists.", folder_name); - } - g_hash_table_insert (store->folders, g_strdup (folder_name), folder); - - camel_object_hook_event (CAMEL_OBJECT (folder), "finalize", folder_finalize, store); - } - - CAMEL_STORE_UNLOCK(store, cache_lock); - - /* - * gt_k so as not to get caught by my little gt_k cleanliness detector. - * - * gt_k_signal_connect_object (CAMEL_OBJECT (folder), "destroy", - * GT_K_SIGNAL_FUNC (CS_CLASS (store)->uncache_folder), - * CAMEL_OBJECT (store)); - */ -} - -static gboolean -folder_matches (gpointer key, gpointer value, gpointer user_data) -{ - if (value == user_data) { - g_free (key); - return TRUE; - } else - return FALSE; -} - -static void -uncache_folder (CamelStore *store, CamelFolder *folder) -{ - CAMEL_STORE_LOCK(store, cache_lock); - - g_hash_table_foreach_remove (store->folders, folder_matches, folder); - - CAMEL_STORE_UNLOCK(store, cache_lock); -} - - -static CamelFolder * -get_folder_internal(CamelStore *store, const char *folder_name, guint32 flags, CamelException *ex) -{ - CamelFolder *folder = NULL; - - /* NB: we already have folder_lock */ - - /* Try cache first. */ - folder = CS_CLASS(store)->lookup_folder(store, folder_name); - - if (!folder) { - folder = CS_CLASS(store)->get_folder(store, folder_name, flags, ex); - if (!folder) - return NULL; - - CS_CLASS(store)->cache_folder(store, folder_name, folder); - } - - return folder; -} - - - -/** - * camel_store_get_folder: Return the folder corresponding to a path. - * @store: a CamelStore - * @folder_name: name of the folder to get - * @flags: folder flags (create, save body index, etc) - * @ex: a CamelException - * - * Returns the folder corresponding to the path @folder_name. If the - * path begins with the separator character, it is relative to the - * root folder. Otherwise, it is relative to the default folder. - * - * Return value: the folder - **/ -CamelFolder * -camel_store_get_folder(CamelStore *store, const char *folder_name, guint32 flags, CamelException *ex) -{ - char *name; - CamelFolder *folder = NULL; - - CAMEL_STORE_LOCK(store, folder_lock); - - name = CS_CLASS(store)->get_folder_name(store, folder_name, ex); - if (name) { - folder = get_folder_internal(store, name, flags, ex); - g_free (name); - } - - CAMEL_STORE_UNLOCK(store, folder_lock); - - return folder; -} - - -/** - * camel_store_delete_folder: Delete the folder corresponding to a path. - * @store: a CamelStore - * @folder_name: name of the folder to delete - * @ex: a CamelException - * - * Deletes the named folder. The folder must be empty. - **/ -void -camel_store_delete_folder (CamelStore *store, const char *folder_name, - CamelException *ex) -{ - char *name; - - CAMEL_STORE_LOCK(store, folder_lock); - - name = CS_CLASS (store)->get_folder_name (store, folder_name, ex); - if (name) { - CS_CLASS (store)->delete_folder (store, name, ex); - g_free (name); - } - - CAMEL_STORE_UNLOCK(store, folder_lock); -} - -/** - * camel_store_rename_folder: - * @store: - * @old_name: - * @new_name: - * @ex: - * - * Rename a named folder to a new name. - **/ -void camel_store_rename_folder (CamelStore *store, - const char *old_name, - const char *new_name, - CamelException *ex) -{ - char *old, *new; - - CAMEL_STORE_LOCK(store, folder_lock); - - old = CS_CLASS (store)->get_folder_name(store, old_name, ex); - if (old) { - new = CS_CLASS (store)->get_folder_name(store, new_name, ex); - if (new) { - CS_CLASS (store)->rename_folder(store, old, new, ex); - g_free(new); - } - g_free(old); - } - - CAMEL_STORE_UNLOCK(store, folder_lock); -} - - -/** - * camel_store_get_root_folder: return the top-level folder - * - * Returns the folder which is at the top of the folder hierarchy. - * This folder may or may not be the same as the default folder. - * - * Return value: the top-level folder. - **/ -CamelFolder * -camel_store_get_root_folder (CamelStore *store, CamelException *ex) -{ - char *name; - CamelFolder *folder = NULL; - - CAMEL_STORE_LOCK(store, folder_lock); - - name = CS_CLASS (store)->get_root_folder_name (store, ex); - if (name) { - folder = get_folder_internal (store, name, CAMEL_STORE_FOLDER_CREATE, ex); - g_free (name); - } - - CAMEL_STORE_UNLOCK(store, folder_lock); - - return folder; -} - -/** - * camel_store_get_default_folder: return the store default folder - * - * The default folder is the folder which is presented to the user in - * the default configuration. This defaults to the root folder if - * the store doesn't override it. - * - * Return value: the default folder. - **/ -CamelFolder * -camel_store_get_default_folder (CamelStore *store, CamelException *ex) -{ - char *name; - CamelFolder *folder = NULL; - - CAMEL_STORE_LOCK(store, folder_lock); - - name = CS_CLASS (store)->get_default_folder_name (store, ex); - if (name) { - folder = get_folder_internal (store, name, CAMEL_STORE_FOLDER_CREATE, ex); - g_free (name); - } - - CAMEL_STORE_UNLOCK(store, folder_lock); - - return folder; -} - - -static void -sync_folder (gpointer key, gpointer folder, gpointer ex) -{ - if (!camel_exception_is_set (ex)) - camel_folder_sync (folder, FALSE, ex); -} - -static void -store_sync (CamelStore *store, CamelException *ex) -{ - CAMEL_STORE_LOCK(store, cache_lock); - g_hash_table_foreach (store->folders, sync_folder, ex); - CAMEL_STORE_UNLOCK(store, cache_lock); -} - -/** - * camel_store_sync: - * @store: a CamelStore - * @ex: a CamelException - * - * Syncs any changes that have been made to the store object and its - * folders with the real store. - **/ -void -camel_store_sync (CamelStore *store, CamelException *ex) -{ - g_return_if_fail (CAMEL_IS_STORE (store)); - - CS_CLASS (store)->sync (store, ex); -} - - -static CamelFolderInfo * -get_folder_info (CamelStore *store, const char *top, - gboolean fast, gboolean recursive, - gboolean subscribed_only, - CamelException *ex) -{ - g_warning ("CamelStore::get_folder_info not implemented for `%s'", - camel_type_to_name (CAMEL_OBJECT_GET_TYPE (store))); - return NULL; -} - -/** - * camel_store_get_folder_info: - * @store: a CamelStore - * @top: the name of the folder to start from - * @fast: whether or not to do a "fast" scan. - * @recursive: whether to include information for subfolders - * @ex: a CamelException - * - * This fetches information about the folder structure of @store, - * starting with @top, and returns a tree of CamelFolderInfo - * structures. If @fast is %TRUE, the message_count or - * unread_message_count fields of some or all of the structures may be - * set to -1, if the store cannot determine that information quickly. - * If @recursive is %TRUE, the returned tree will include all levels of - * hierarchy below @top. If it is %FALSE, it will only include the - * immediate subfolders of @top. - * - * Return value: a CamelFolderInfo tree, which must be freed with - * camel_store_free_folder_info. - **/ -CamelFolderInfo * -camel_store_get_folder_info (CamelStore *store, const char *top, - gboolean fast, gboolean recursive, - gboolean subscribed_only, - CamelException *ex) -{ - CamelFolderInfo *ret; - - g_return_val_if_fail (CAMEL_IS_STORE (store), NULL); - - CAMEL_STORE_LOCK(store, folder_lock); - - ret = CS_CLASS (store)->get_folder_info (store, top, fast, recursive, subscribed_only, ex); - - CAMEL_STORE_UNLOCK(store, folder_lock); - - return ret; -} - - -static void -free_folder_info (CamelStore *store, CamelFolderInfo *fi) -{ - g_warning ("CamelStore::free_folder_info not implemented for `%s'", - camel_type_to_name (CAMEL_OBJECT_GET_TYPE (store))); -} - -/** - * camel_store_free_folder_info: - * @store: a CamelStore - * @tree: the tree returned by camel_store_get_folder_info() - * - * Frees the data returned by camel_store_get_folder_info(). - **/ -void -camel_store_free_folder_info (CamelStore *store, CamelFolderInfo *fi) -{ - g_return_if_fail (CAMEL_IS_STORE (store)); - - CS_CLASS (store)->free_folder_info (store, fi); -} - -/** - * camel_store_free_folder_info_full: - * @store: a CamelStore - * @tree: the tree returned by camel_store_get_folder_info() - * - * An implementation for CamelStore::free_folder_info. Frees all - * of the data. - **/ -void -camel_store_free_folder_info_full (CamelStore *store, CamelFolderInfo *fi) -{ - camel_folder_info_free (fi); -} - -/** - * camel_store_free_folder_info_nop: - * @store: a CamelStore - * @tree: the tree returned by camel_store_get_folder_info() - * - * An implementation for CamelStore::free_folder_info. Does nothing. - **/ -void -camel_store_free_folder_info_nop (CamelStore *store, CamelFolderInfo *fi) -{ - ; -} - - -/** - * camel_folder_info_free: - * @fi: the CamelFolderInfo - * - * Frees @fi. - **/ -void -camel_folder_info_free (CamelFolderInfo *fi) -{ - if (fi) { - camel_folder_info_free (fi->sibling); - camel_folder_info_free (fi->child); - g_free (fi->name); - g_free (fi->full_name); - g_free (fi->url); - g_free (fi); - } -} - - -/** - * camel_folder_info_build: - * @folders: an array of CamelFolderInfo - * @namespace: an ignorable prefix on the folder names - * @separator: the hieararchy separator character - * @short_names: %TRUE if the (short) name of a folder is the part after - * the last @separator in the full name. %FALSE if it is the full name. - * - * This takes an array of folders and attaches them together according - * to the hierarchy described by their full_names and @separator. If - * @namespace is non-%NULL, then it will be ignored as a full_name - * prefix, for purposes of comparison. If necessary, - * camel_folder_info_build will create additional CamelFolderInfo with - * %NULL urls to fill in gaps in the tree. The value of @short_names - * is used in constructing the names of these intermediate folders. - * - * Return value: the top level of the tree of linked folder info. - **/ -CamelFolderInfo * -camel_folder_info_build (GPtrArray *folders, const char *namespace, - char separator, gboolean short_names) -{ - CamelFolderInfo *fi, *pfi, *top = NULL; - GHashTable *hash; - char *name, *p, *pname; - int i, nlen; - - if (!namespace) - namespace = ""; - nlen = strlen (namespace); - - /* Hash the folders. */ - hash = g_hash_table_new (g_str_hash, g_str_equal); - for (i = 0; i < folders->len; i++) { - fi = folders->pdata[i]; - if (!strncmp (namespace, fi->full_name, nlen)) - name = fi->full_name + nlen; - else - name = fi->full_name; - if (*name == separator) - name++; - g_hash_table_insert (hash, name, fi); - } - - /* Now find parents. */ - for (i = 0; i < folders->len; i++) { - fi = folders->pdata[i]; - if (!strncmp (namespace, fi->full_name, nlen)) - name = fi->full_name + nlen; - else - name = fi->full_name; - if (*name == separator) - name++; - p = strrchr (name, separator); - if (p) { - pname = g_strndup (name, p - name); - pfi = g_hash_table_lookup (hash, pname); - if (pfi) { - g_free (pname); - } else { - pfi = g_new0 (CamelFolderInfo, 1); - pfi->full_name = pname; - if (short_names) { - pfi->name = strrchr (pname, separator); - if (pfi->name) - pfi->name = g_strdup (pfi->name + 1); - else - pfi->name = g_strdup (pname); - } else - pfi->name = g_strdup (pname); - g_hash_table_insert (hash, pname, pfi); - g_ptr_array_add (folders, pfi); - } - fi->sibling = pfi->child; - fi->parent = pfi; - pfi->child = fi; - } else if (!top) - top = fi; - } - g_hash_table_destroy (hash); - - /* Link together the top-level folders */ - for (i = 0; i < folders->len; i++) { - fi = folders->pdata[i]; - if (fi->parent || fi == top) - continue; - if (top) - fi->sibling = top; - top = fi; - } - - return top; -} - -gboolean -camel_store_supports_subscriptions (CamelStore *store) -{ - return (store->flags & CAMEL_STORE_SUBSCRIPTIONS); -} - - -static gboolean -folder_subscribed (CamelStore *store, const char *folder_name) -{ - g_warning ("CamelStore::folder_subscribed not implemented for `%s'", - camel_type_to_name (CAMEL_OBJECT_GET_TYPE (store))); - return FALSE; -} - -/** - * camel_store_folder_subscribed: Tell whether or not a folder has been subscribed to. - * @store: a CamelStore - * @folder_name: the folder on which we're querying subscribed status. - * Return value: TRUE if folder is subscribed, FALSE if not. - **/ -gboolean -camel_store_folder_subscribed (CamelStore *store, - const char *folder_name) -{ - gboolean ret; - - g_return_val_if_fail (CAMEL_IS_STORE (store), FALSE); - g_return_val_if_fail (store->flags & CAMEL_STORE_SUBSCRIPTIONS, FALSE); - - CAMEL_STORE_LOCK(store, folder_lock); - - ret = CS_CLASS (store)->folder_subscribed (store, folder_name); - - CAMEL_STORE_UNLOCK(store, folder_lock); - - return ret; -} - -static void -subscribe_folder (CamelStore *store, const char *folder_name, CamelException *ex) -{ - g_warning ("CamelStore::subscribe_folder not implemented for `%s'", - camel_type_to_name (CAMEL_OBJECT_GET_TYPE (store))); -} - -/** - * camel_store_subscribe_folder: marks a folder as subscribed. - * @store: a CamelStore - * @folder_name: the folder to subscribe to. - **/ -void -camel_store_subscribe_folder (CamelStore *store, - const char *folder_name, - CamelException *ex) -{ - g_return_if_fail (CAMEL_IS_STORE (store)); - g_return_if_fail (store->flags & CAMEL_STORE_SUBSCRIPTIONS); - - CAMEL_STORE_LOCK(store, folder_lock); - - CS_CLASS (store)->subscribe_folder (store, folder_name, ex); - - CAMEL_STORE_UNLOCK(store, folder_lock); -} - -static void -unsubscribe_folder (CamelStore *store, const char *folder_name, CamelException *ex) -{ - g_warning ("CamelStore::unsubscribe_folder not implemented for `%s'", - camel_type_to_name (CAMEL_OBJECT_GET_TYPE (store))); -} - - -/** - * camel_store_unsubscribe_folder: marks a folder as unsubscribed. - * @store: a CamelStore - * @folder_name: the folder to unsubscribe from. - **/ -void -camel_store_unsubscribe_folder (CamelStore *store, - const char *folder_name, - CamelException *ex) -{ - g_return_if_fail (CAMEL_IS_STORE (store)); - g_return_if_fail (store->flags & CAMEL_STORE_SUBSCRIPTIONS); - - CAMEL_STORE_LOCK(store, folder_lock); - - CS_CLASS (store)->unsubscribe_folder (store, folder_name, ex); - - CAMEL_STORE_UNLOCK(store, folder_lock); -} |