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Diffstat (limited to 'camel/camel-session.c')
| -rw-r--r-- | camel/camel-session.c | 855 |
1 files changed, 0 insertions, 855 deletions
diff --git a/camel/camel-session.c b/camel/camel-session.c deleted file mode 100644 index aa81b5672f..0000000000 --- a/camel/camel-session.c +++ /dev/null @@ -1,855 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* camel-session.c : Abstract class for an email session */ - -/* - * Authors: - * Dan Winship <danw@ximian.com> - * Jeffrey Stedfast <fejj@ximian.com> - * Bertrand Guiheneuf <bertrand@helixcode.com> - * - * Copyright 1999 - 2001 Ximian, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. - * - * 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 - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <errno.h> -#include <stdio.h> -#include <string.h> -#include <sys/stat.h> -#include <unistd.h> - -#include "camel-session.h" -#include "camel-store.h" -#include "camel-transport.h" -#include "camel-exception.h" -#include "string-utils.h" -#include "camel-url.h" -#include "camel-vee-store.h" - -#include "camel-private.h" - -#define d(x) - -#define CS_CLASS(so) CAMEL_SESSION_CLASS (CAMEL_OBJECT_GET_CLASS (so)) - -static void register_provider (CamelSession *session, CamelProvider *provider); -static GList *list_providers (CamelSession *session, gboolean load); -static CamelProvider *get_provider (CamelSession *session, - const char *url_string, - CamelException *ex); - -static CamelService *get_service (CamelSession *session, - const char *url_string, - CamelProviderType type, - CamelException *ex); -static char *get_storage_path (CamelSession *session, - CamelService *service, - CamelException *ex); - -#ifdef ENABLE_THREADS -static void *session_thread_msg_new(CamelSession *session, CamelSessionThreadOps *ops, unsigned int size); -static void session_thread_msg_free(CamelSession *session, CamelSessionThreadMsg *msg); -static int session_thread_queue(CamelSession *session, CamelSessionThreadMsg *msg, int flags); -static void session_thread_wait(CamelSession *session, int id); -#endif - -/* The vfolder provider is always available */ -static CamelProvider vee_provider = { - "vfolder", - N_("Virtual folder email provider"), - - N_("For reading mail as a query of another set of folders"), - - "vfolder", - - CAMEL_PROVIDER_IS_STORAGE, - - CAMEL_URL_NEED_PATH, /* url_flags */ - - /* ... */ -}; - -static void -camel_session_init (CamelSession *session) -{ - session->online = TRUE; - session->modules = camel_provider_init (); - session->providers = g_hash_table_new (g_strcase_hash, g_strcase_equal); - session->priv = g_malloc0(sizeof(*session->priv)); -#ifdef ENABLE_THREADS - session->priv->lock = g_mutex_new(); - session->priv->thread_lock = g_mutex_new(); - session->priv->thread_id = 1; - session->priv->thread_active = g_hash_table_new(NULL, NULL); - session->priv->thread_queue = NULL; -#endif -} - -static gboolean -camel_session_destroy_provider (gpointer key, gpointer value, gpointer user_data) -{ - CamelProvider *prov = (CamelProvider *)value; - int i; - - for (i = 0; i < CAMEL_NUM_PROVIDER_TYPES; i++) { - if (prov->service_cache[i]) - camel_object_bag_destroy (prov->service_cache[i]); - } - return TRUE; -} - -static void -camel_session_finalise (CamelObject *o) -{ - CamelSession *session = (CamelSession *)o; - -#ifdef ENABLE_THREADS - g_hash_table_destroy(session->priv->thread_active); - if (session->priv->thread_queue) - e_thread_destroy(session->priv->thread_queue); -#endif - - g_free(session->storage_path); - g_hash_table_foreach_remove (session->providers, - camel_session_destroy_provider, NULL); - g_hash_table_destroy (session->providers); - -#ifdef ENABLE_THREADS - g_mutex_free(session->priv->lock); - g_mutex_free(session->priv->thread_lock); -#endif - g_free(session->priv); -} - -static void -camel_session_class_init (CamelSessionClass *camel_session_class) -{ - /* virtual method definition */ - camel_session_class->register_provider = register_provider; - camel_session_class->list_providers = list_providers; - camel_session_class->get_provider = get_provider; - camel_session_class->get_service = get_service; - camel_session_class->get_storage_path = get_storage_path; - -#ifdef ENABLE_THREADS - camel_session_class->thread_msg_new = session_thread_msg_new; - camel_session_class->thread_msg_free = session_thread_msg_free; - camel_session_class->thread_queue = session_thread_queue; - camel_session_class->thread_wait = session_thread_wait; -#endif - - vee_provider.object_types[CAMEL_PROVIDER_STORE] = camel_vee_store_get_type (); - vee_provider.url_hash = camel_url_hash; - vee_provider.url_equal = camel_url_equal; -} - -CamelType -camel_session_get_type (void) -{ - static CamelType camel_session_type = CAMEL_INVALID_TYPE; - - if (camel_session_type == CAMEL_INVALID_TYPE) { - camel_session_type = camel_type_register ( - camel_object_get_type (), "CamelSession", - sizeof (CamelSession), - sizeof (CamelSessionClass), - (CamelObjectClassInitFunc) camel_session_class_init, - NULL, - (CamelObjectInitFunc) camel_session_init, - (CamelObjectFinalizeFunc) camel_session_finalise); - } - - return camel_session_type; -} - -/** - * camel_session_construct: - * @session: a session object to construct - * @storage_path: path to a directory the session can use for - * persistent storage. (This directory must already exist.) - * - * Constructs @session. - **/ -void -camel_session_construct (CamelSession *session, const char *storage_path) -{ - session->storage_path = g_strdup (storage_path); - camel_session_register_provider(session, &vee_provider); -} - - -static void -register_provider (CamelSession *session, CamelProvider *provider) -{ - int i; - CamelProviderConfEntry *conf; - GList *l; - - for (i = 0; i < CAMEL_NUM_PROVIDER_TYPES; i++) { - if (provider->object_types[i]) - provider->service_cache[i] = camel_object_bag_new (provider->url_hash, provider->url_equal, - (CamelCopyFunc)camel_url_copy, (GFreeFunc)camel_url_free); - } - - /* Translate all strings here */ - -#define P_(string) dgettext (provider->translation_domain, string) - - provider->name = P_(provider->name); - provider->description = P_(provider->description); - conf = provider->extra_conf; - if (conf) { - for (i=0;conf[i].type != CAMEL_PROVIDER_CONF_END;i++) { - if (conf[i].text) - conf[i].text = P_(conf[i].text); - } - } - l = provider->authtypes; - while (l) { - CamelServiceAuthType *auth = l->data; - - auth->name = P_(auth->name); - auth->description = P_(auth->description); - l = l->next; - } - - g_hash_table_insert (session->providers, provider->protocol, provider); -} - -/** - * camel_session_register_provider: - * @session: a session object - * @protocol: the protocol the provider provides for - * @provider: provider object - * - * Registers a protocol to provider mapping for the session. - * - * Assumes the session lock has already been obtained, - * which is the case for automatically loaded provider modules. - **/ -void -camel_session_register_provider (CamelSession *session, - CamelProvider *provider) -{ - g_return_if_fail (CAMEL_IS_SESSION (session)); - g_return_if_fail (provider != NULL); - - CS_CLASS (session)->register_provider (session, provider); -} - - -static void -ensure_loaded (gpointer key, gpointer value, gpointer user_data) -{ - CamelSession *session = user_data; - char *name = key; - char *path = value; - - if (!g_hash_table_lookup (session->providers, name)) { - CamelException ex; - - camel_exception_init (&ex); - camel_provider_load (session, path, &ex); - camel_exception_clear (&ex); - } -} - -static gint -provider_compare (gconstpointer a, gconstpointer b) -{ - const CamelProvider *cpa = (const CamelProvider *)a; - const CamelProvider *cpb = (const CamelProvider *)b; - - return strcmp (cpa->name, cpb->name); -} - -static void -add_to_list (gpointer key, gpointer value, gpointer user_data) -{ - GList **list = user_data; - CamelProvider *prov = value; - - *list = g_list_insert_sorted (*list, prov, provider_compare); -} - -static GList * -list_providers (CamelSession *session, gboolean load) -{ - GList *list = NULL; - - if (load) - g_hash_table_foreach (session->modules, ensure_loaded, session); - - g_hash_table_foreach (session->providers, add_to_list, &list); - return list; -} - -/** - * camel_session_list_providers: - * @session: the session - * @load: whether or not to load in providers that are not already loaded - * - * This returns a list of available providers in this session. If @load - * is %TRUE, it will first load in all available providers that haven't - * yet been loaded. - * - * Return value: a GList of providers, which the caller must free. - **/ -GList * -camel_session_list_providers (CamelSession *session, gboolean load) -{ - GList *list; - - g_return_val_if_fail (CAMEL_IS_SESSION (session), NULL); - - CAMEL_SESSION_LOCK (session, lock); - list = CS_CLASS (session)->list_providers (session, load); - CAMEL_SESSION_UNLOCK (session, lock); - - return list; -} - - -static CamelProvider * -get_provider (CamelSession *session, const char *url_string, CamelException *ex) -{ - CamelProvider *provider; - char *protocol; - - protocol = g_strndup (url_string, strcspn (url_string, ":")); - - provider = g_hash_table_lookup (session->providers, protocol); - if (!provider) { - /* See if there's one we can load. */ - char *path; - - path = g_hash_table_lookup (session->modules, protocol); - if (path) { - camel_provider_load (session, path, ex); - if (camel_exception_is_set (ex)) { - g_free (protocol); - return NULL; - } - } - provider = g_hash_table_lookup (session->providers, protocol); - } - - if (!provider) { - camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_URL_INVALID, - _("No provider available for protocol `%s'"), - protocol); - } - g_free (protocol); - - return provider; -} - -/** - * camel_session_get_provider: - * @session: the session - * @url_string: the URL for the service whose provider you want - * @ex: a CamelException - * - * This returns the CamelProvider that would be used to handle - * @url_string, loading it in from disk if necessary. - * - * Return value: the provider, or %NULL, in which case @ex will be set. - **/ -CamelProvider * -camel_session_get_provider (CamelSession *session, const char *url_string, - CamelException *ex) -{ - CamelProvider *provider; - - CAMEL_SESSION_LOCK (session, lock); - provider = CS_CLASS (session)->get_provider (session, url_string, ex); - CAMEL_SESSION_UNLOCK (session, lock); - - return provider; -} - -static CamelService * -get_service (CamelSession *session, const char *url_string, - CamelProviderType type, CamelException *ex) -{ - CamelURL *url; - CamelProvider *provider; - CamelService *service; - CamelException internal_ex; - - url = camel_url_new (url_string, ex); - if (!url) - return NULL; - - /* We need to look up the provider so we can then lookup - the service in the provider's cache */ - provider = CS_CLASS (session)->get_provider (session, url->protocol, ex); - if (provider && !provider->object_types[type]) { - camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_URL_INVALID, - _("No provider available for protocol `%s'"), - url->protocol); - provider = NULL; - } - - if (!provider) { - camel_url_free (url); - return NULL; - } - - /* If the provider doesn't use paths but the URL contains one, - * ignore it. - */ - if (url->path && !CAMEL_PROVIDER_ALLOWS (provider, CAMEL_URL_PART_PATH)) - camel_url_set_path (url, NULL); - - /* Now look up the service in the provider's cache */ - service = camel_object_bag_reserve(provider->service_cache[type], url); - if (service != NULL) { - camel_url_free (url); - return service; - } - - service = (CamelService *)camel_object_new (provider->object_types[type]); - camel_exception_init (&internal_ex); - camel_service_construct (service, session, provider, url, &internal_ex); - if (camel_exception_is_set (&internal_ex)) { - camel_exception_xfer (ex, &internal_ex); - camel_object_unref (service); - service = NULL; - camel_object_bag_abort(provider->service_cache[type], url); - } else { - camel_object_bag_add(provider->service_cache[type], url, service); - } - - return service; -} - -/** - * camel_session_get_service: - * @session: the CamelSession - * @url_string: a Camel URL describing the service to get - * @type: the provider type (%CAMEL_PROVIDER_STORE or - * %CAMEL_PROVIDER_TRANSPORT) to get, since some URLs may be able - * to specify either type. - * @ex: a CamelException - * - * This resolves a CamelURL into a CamelService, including loading the - * provider library for that service if it has not already been loaded. - * - * Services are cached, and asking for "the same" @url_string multiple - * times will return the same CamelService (with its reference count - * incremented by one each time). What constitutes "the same" URL - * depends in part on the provider. - * - * Return value: the requested CamelService, or %NULL - **/ -CamelService * -camel_session_get_service (CamelSession *session, const char *url_string, - CamelProviderType type, CamelException *ex) -{ - CamelService *service; - - g_return_val_if_fail (CAMEL_IS_SESSION (session), NULL); - g_return_val_if_fail (url_string != NULL, NULL); - - CAMEL_SESSION_LOCK (session, lock); - service = CS_CLASS (session)->get_service (session, url_string, type, ex); - CAMEL_SESSION_UNLOCK (session, lock); - - return service; -} - -/** - * camel_session_get_service_connected: - * @session: the CamelSession - * @url_string: a Camel URL describing the service to get - * @type: the provider type - * @ex: a CamelException - * - * This works like camel_session_get_service(), but also ensures that - * the returned service will have been successfully connected (via - * camel_service_connect().) - * - * Return value: the requested CamelService, or %NULL - **/ -CamelService * -camel_session_get_service_connected (CamelSession *session, - const char *url_string, - CamelProviderType type, - CamelException *ex) -{ - CamelService *svc; - - svc = camel_session_get_service (session, url_string, type, ex); - if (svc == NULL) - return NULL; - - if (svc->status != CAMEL_SERVICE_CONNECTED) { - if (camel_service_connect (svc, ex) == FALSE) { - camel_object_unref (CAMEL_OBJECT (svc)); - return NULL; - } - } - - return svc; -} - - -static char * -get_storage_path (CamelSession *session, CamelService *service, CamelException *ex) -{ - char *path, *p; - - p = camel_service_get_path (service); - path = g_strdup_printf ("%s/%s", session->storage_path, p); - g_free (p); - - if (access (path, F_OK) == 0) - return path; - - if (camel_mkdir_hier (path, S_IRWXU) == -1) { - camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM, - _("Could not create directory %s:\n%s"), - path, g_strerror (errno)); - g_free (path); - return NULL; - } - - return path; -} - -/** - * camel_session_get_storage_path: - * @session: session object - * @service: a CamelService - * @ex: a CamelException - * - * This returns the path to a directory which the service can use for - * its own purposes. Data stored there will remain between Evolution - * sessions. No code outside of that service should ever touch the - * files in this directory. If the directory does not exist, it will - * be created. - * - * Return value: the path (which the caller must free), or %NULL if - * an error occurs. - **/ -char * -camel_session_get_storage_path (CamelSession *session, CamelService *service, - CamelException *ex) -{ - g_return_val_if_fail (CAMEL_IS_SESSION (session), NULL); - g_return_val_if_fail (CAMEL_IS_SERVICE (service), NULL); - - return CS_CLASS (session)->get_storage_path (session, service, ex); -} - - -/** - * camel_session_get_password: - * @session: session object - * @prompt: prompt to provide to user - * @reprompt: TRUE if the prompt should force a reprompt - * @secret: whether or not the data is secret (eg, a password, as opposed - * to a smartcard response) - * @service: the service this query is being made by - * @item: an identifier, unique within this service, for the information - * @ex: a CamelException - * - * This function is used by a CamelService to ask the application and - * the user for a password or other authentication data. - * - * @service and @item together uniquely identify the piece of data the - * caller is concerned with. - * - * @prompt is a question to ask the user (if the application doesn't - * already have the answer cached). If @secret is set, the user's - * input will not be echoed back. The authenticator should set @ex - * to %CAMEL_EXCEPTION_USER_CANCEL if the user did not provide the - * information. The caller must g_free() the information returned when - * it is done with it. - * - * Return value: the authentication information or %NULL. - **/ -char * -camel_session_get_password (CamelSession *session, const char *prompt, - gboolean reprompt, gboolean secret, - CamelService *service, const char *item, - CamelException *ex) -{ - g_return_val_if_fail (CAMEL_IS_SESSION (session), NULL); - g_return_val_if_fail (prompt != NULL, NULL); - g_return_val_if_fail (item != NULL, NULL); - - return CS_CLASS (session)->get_password (session, prompt, reprompt, secret, service, item, ex); -} - - -/** - * camel_session_forget_password: - * @session: session object - * @service: the service rejecting the password - * @item: an identifier, unique within this service, for the information - * @ex: a CamelException - * - * This function is used by a CamelService to tell the application - * that the authentication information it provided via - * camel_session_get_password was rejected by the service. If the - * application was caching this information, it should stop, - * and if the service asks for it again, it should ask the user. - * - * @service and @item identify the rejected authentication information, - * as with camel_session_get_password. - **/ -void -camel_session_forget_password (CamelSession *session, CamelService *service, - const char *item, CamelException *ex) -{ - g_return_if_fail (CAMEL_IS_SESSION (session)); - g_return_if_fail (item != NULL); - - CS_CLASS (session)->forget_password (session, service, item, ex); -} - - -/** - * camel_session_alert_user: - * @session: session object - * @type: the type of alert (info, warning, or error) - * @prompt: the message for the user - * @cancel: whether or not to provide a "Cancel" option in addition to - * an "OK" option. - * - * Presents the given @prompt to the user, in the style indicated by - * @type. If @cancel is %TRUE, the user will be able to accept or - * cancel. Otherwise, the message is purely informational. - * - * Return value: %TRUE if the user accepts, %FALSE if they cancel. - */ -gboolean -camel_session_alert_user (CamelSession *session, CamelSessionAlertType type, - const char *prompt, gboolean cancel) -{ - g_return_val_if_fail (CAMEL_IS_SESSION (session), FALSE); - g_return_val_if_fail (prompt != NULL, FALSE); - - return CS_CLASS (session)->alert_user (session, type, prompt, cancel); -} - - -/** - * camel_session_is_online: - * @session: the session. - * - * Return value: whether or not @session is online. - **/ -gboolean -camel_session_is_online (CamelSession *session) -{ - return session->online; -} - - -/** - * camel_session_set_online: - * @session: the session - * @online: whether or not the session should be online - * - * Sets the online status of @session to @online. - **/ -void -camel_session_set_online (CamelSession *session, gboolean online) -{ - session->online = online; -} - - -/** - * camel_session_get_filter_driver: - * @session: the session - * @type: the type of filter (eg, "incoming") - * @ex: a CamelException - * - * Return value: a filter driver, loaded with applicable rules - **/ -CamelFilterDriver * -camel_session_get_filter_driver (CamelSession *session, - const char *type, - CamelException *ex) -{ - return CS_CLASS (session)->get_filter_driver (session, type, ex); -} - -#ifdef ENABLE_THREADS - -static void *session_thread_msg_new(CamelSession *session, CamelSessionThreadOps *ops, unsigned int size) -{ - CamelSessionThreadMsg *m; - - g_assert(size >= sizeof(*m)); - - m = g_malloc0(size); - m->ops = ops; - - CAMEL_SESSION_LOCK(session, thread_lock); - m->id = session->priv->thread_id++; - g_hash_table_insert(session->priv->thread_active, GINT_TO_POINTER(m->id), m); - CAMEL_SESSION_UNLOCK(session, thread_lock); - - return m; -} - -static void session_thread_msg_free(CamelSession *session, CamelSessionThreadMsg *msg) -{ - g_assert(msg->ops != NULL); - - d(printf("free message %p session %p\n", msg, session)); - - CAMEL_SESSION_LOCK(session, thread_lock); - g_hash_table_remove(session->priv->thread_active, GINT_TO_POINTER(msg->id)); - CAMEL_SESSION_UNLOCK(session, thread_lock); - - d(printf("free msg, ops->free = %p\n", msg->ops->free)); - - if (msg->ops->free) - msg->ops->free(session, msg); - g_free(msg); -} - -static void session_thread_destroy(EThread *thread, CamelSessionThreadMsg *msg, CamelSession *session) -{ - d(printf("destroy message %p session %p\n", msg, session)); - session_thread_msg_free(session, msg); -} - -static void session_thread_received(EThread *thread, CamelSessionThreadMsg *msg, CamelSession *session) -{ - d(printf("receive message %p session %p\n", msg, session)); - if (msg->ops->receive) - msg->ops->receive(session, msg); -} - -static int session_thread_queue(CamelSession *session, CamelSessionThreadMsg *msg, int flags) -{ - int id; - - CAMEL_SESSION_LOCK(session, thread_lock); - if (session->priv->thread_queue == NULL) { - session->priv->thread_queue = e_thread_new(E_THREAD_QUEUE); - e_thread_set_msg_destroy(session->priv->thread_queue, (EThreadFunc)session_thread_destroy, session); - e_thread_set_msg_received(session->priv->thread_queue, (EThreadFunc)session_thread_received, session); - } - CAMEL_SESSION_UNLOCK(session, thread_lock); - - id = msg->id; - e_thread_put(session->priv->thread_queue, &msg->msg); - - return id; -} - -static void session_thread_wait(CamelSession *session, int id) -{ - int wait; - - /* we just busy wait, only other alternative is to setup a reply port? */ - do { - CAMEL_SESSION_LOCK(session, thread_lock); - wait = g_hash_table_lookup(session->priv->thread_active, GINT_TO_POINTER(id)) != NULL; - CAMEL_SESSION_UNLOCK(session, thread_lock); - if (wait) { - usleep(20000); - } - } while (wait); -} - -/** - * camel_session_thread_msg_new: - * @session: - * @ops: - * @size: - * - * Create a new thread message, using ops as the receive/reply/free - * ops, of @size bytes. - * - * @ops points to the operations used to recieve/process and finally - * free the message. - **/ -void *camel_session_thread_msg_new(CamelSession *session, CamelSessionThreadOps *ops, unsigned int size) -{ - g_assert(CAMEL_IS_SESSION(session)); - g_assert(ops != NULL); - g_assert(size >= sizeof(CamelSessionThreadMsg)); - - return CS_CLASS (session)->thread_msg_new(session, ops, size); -} - -/** - * camel_session_thread_msg_free: - * @session: - * @msg: - * - * Free a @msg. Note that the message must have been allocated using - * msg_new, and must nto have been submitted to any queue function. - **/ -void camel_session_thread_msg_free(CamelSession *session, CamelSessionThreadMsg *msg) -{ - g_assert(CAMEL_IS_SESSION(session)); - g_assert(msg != NULL); - g_assert(msg->ops != NULL); - - CS_CLASS (session)->thread_msg_free(session, msg); -} - -/** - * camel_session_thread_queue: - * @session: - * @msg: - * @flags: queue type flags, currently 0. - * - * Queue a thread message in another thread for processing. - * The operation should be (but needn't) run in a queued manner - * with other operations queued in this manner. - * - * Return value: The id of the operation queued. - **/ -int camel_session_thread_queue(CamelSession *session, CamelSessionThreadMsg *msg, int flags) -{ - g_assert(CAMEL_IS_SESSION(session)); - g_assert(msg != NULL); - - return CS_CLASS (session)->thread_queue(session, msg, flags); -} - -/** - * camel_session_thread_wait: - * @session: - * @id: - * - * Wait on an operation to complete (by id). - **/ -void camel_session_thread_wait(CamelSession *session, int id) -{ - g_assert(CAMEL_IS_SESSION(session)); - - if (id == -1) - return; - - CS_CLASS (session)->thread_wait(session, id); -} - -#endif |