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-rw-r--r--camel/camel-provider.c398
1 files changed, 0 insertions, 398 deletions
diff --git a/camel/camel-provider.c b/camel/camel-provider.c
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--- a/camel/camel-provider.c
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-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
- * camel-provider.c: provider framework
- *
- * Authors:
- * Bertrand Guiheneuf <bertrand@helixcode.com>
- * Dan Winship <danw@ximian.com>
- * Jeffrey Stedfast <fejj@ximian.com>
- *
- * Copyright 1999, 2000 Ximian, Inc. (www.ximian.com)
- *
- * 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
- */
-
-/* FIXME: Shouldn't we add a version number to providers ? */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <sys/types.h>
-#include <dirent.h>
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-
-#include <gmodule.h>
-
-#include "camel-provider.h"
-#include "camel-exception.h"
-#include "camel-string-utils.h"
-#include "camel-vee-store.h"
-
-#include "e-util/e-msgport.h"
-
-/* table of CamelProviderModule's */
-static GHashTable *module_table;
-/* table of CamelProvider's */
-static GHashTable *provider_table;
-static EMutex *provider_lock;
-
-#define LOCK() e_mutex_lock(provider_lock);
-#define UNLOCK() e_mutex_unlock(provider_lock);
-
-/* 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 | CAMEL_URL_PATH_IS_ABSOLUTE | CAMEL_URL_FRAGMENT_IS_PATH,
-
- /* ... */
-};
-
-/**
- * camel_provider_init:
- *
- * Initialize the Camel provider system by reading in the .urls
- * files in the provider directory and creating a hash table mapping
- * URLs to module names.
- *
- * A .urls file has the same initial prefix as the shared library it
- * correspond to, and consists of a series of lines containing the URL
- * protocols that that library handles.
- **/
-void
-camel_provider_init (void)
-{
- DIR *dir;
- struct dirent *d;
- char *p, *name, buf[80];
- CamelProviderModule *m;
- static int init = 0;
-
- if (init)
- return;
-
- init = 1;
-
- provider_lock = e_mutex_new(E_MUTEX_REC);
- module_table = g_hash_table_new(camel_strcase_hash, camel_strcase_equal);
- provider_table = g_hash_table_new(camel_strcase_hash, camel_strcase_equal);
-
- 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;
- camel_provider_register(&vee_provider);
-
- dir = opendir (CAMEL_PROVIDERDIR);
- if (!dir) {
- g_error ("Could not open camel provider directory (%s): %s",
- CAMEL_PROVIDERDIR, g_strerror (errno));
- return;
- }
-
- while ((d = readdir (dir))) {
- FILE *fp;
-
- p = strrchr (d->d_name, '.');
- if (!p || strcmp (p, ".urls") != 0)
- continue;
-
- name = g_strdup_printf ("%s/%s", CAMEL_PROVIDERDIR, d->d_name);
- fp = fopen (name, "r");
- if (!fp) {
- g_warning ("Could not read provider info file %s: %s",
- name, g_strerror (errno));
- g_free (name);
- continue;
- }
-
- p = strrchr (name, '.');
- strcpy (p, ".so");
-
- m = g_malloc0(sizeof(*m));
- m->path = name;
-
- while ((fgets (buf, sizeof (buf), fp))) {
- buf[sizeof (buf) - 1] = '\0';
- p = strchr (buf, '\n');
- if (p)
- *p = '\0';
-
- if (*buf) {
- char *protocol = g_strdup(buf);
-
- m->types = g_slist_prepend(m->types, protocol);
- g_hash_table_insert(module_table, protocol, m);
- }
- }
-
- fclose (fp);
- }
-
- closedir (dir);
-}
-
-/**
- * camel_provider_load:
- * @session: the current session
- * @path: the path to a shared library
- * @ex: a CamelException
- *
- * Loads the provider at @path, and calls its initialization function,
- * passing @session as an argument. The provider should then register
- * itself with @session.
- **/
-void
-camel_provider_load(const char *path, CamelException *ex)
-{
- GModule *module;
- CamelProvider *(*camel_provider_module_init) (void);
-
- if (!g_module_supported ()) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("Could not load %s: Module loading "
- "not supported on this system."),
- path);
- return;
- }
-
- module = g_module_open (path, 0);
- if (!module) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("Could not load %s: %s"),
- path, g_module_error ());
- return;
- }
-
- if (!g_module_symbol (module, "camel_provider_module_init",
- (gpointer *)&camel_provider_module_init)) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
- _("Could not load %s: No initialization "
- "code in module."), path);
- g_module_close (module);
- return;
- }
-
- camel_provider_module_init ();
-}
-
-/**
- * camel_provider_register:
- * @provider: provider object
- *
- * Registers a provider.
- **/
-void
-camel_provider_register(CamelProvider *provider)
-{
- int i;
- CamelProviderConfEntry *conf;
- GList *l;
-
- g_return_if_fail (provider != NULL);
-
- LOCK();
-
- if (g_hash_table_lookup(provider_table, provider->protocol) != NULL) {
- g_warning("Trying to re-register camel provider for protocol '%s'", provider->protocol);
- UNLOCK();
- return;
- }
-
- 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(provider_table, provider->protocol, provider);
-
- UNLOCK();
-}
-
-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;
-
- *list = g_list_prepend(*list, value);
-}
-
-/**
- * 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_provider_list(gboolean load)
-{
- GList *list = NULL;
-
- LOCK();
-
- if (load) {
- GList *w;
-
- g_hash_table_foreach(module_table, add_to_list, &list);
- for (w = list;w;w = w->next) {
- CamelProviderModule *m = w->data;
-
- if (!m->loaded) {
- camel_provider_load(m->path, NULL);
- m->loaded = 1;
- }
- }
- g_list_free(list);
- list = NULL;
- }
-
- g_hash_table_foreach(provider_table, add_to_list, &list);
-
- UNLOCK();
-
- list = g_list_sort(list, provider_compare);
-
- return list;
-}
-
-/**
- * camel_provider_get:
- * @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_provider_get(const char *url_string, CamelException *ex)
-{
- CamelProvider *provider = NULL;
- char *protocol;
- size_t len;
-
- g_return_val_if_fail(url_string != NULL, NULL);
-
- len = strcspn(url_string, ":");
- protocol = g_alloca(len+1);
- memcpy(protocol, url_string, len);
- protocol[len] = 0;
-
- LOCK();
-
- provider = g_hash_table_lookup(provider_table, protocol);
- if (!provider) {
- CamelProviderModule *m;
-
- m = g_hash_table_lookup(module_table, protocol);
- if (m && !m->loaded) {
- m->loaded = 1;
- camel_provider_load(m->path, ex);
- if (camel_exception_is_set (ex))
- goto fail;
- }
- provider = g_hash_table_lookup(provider_table, protocol);
- }
-
- if (provider == NULL)
- camel_exception_setv(ex, CAMEL_EXCEPTION_SERVICE_URL_INVALID,
- _("No provider available for protocol `%s'"),
- protocol);
-fail:
- UNLOCK();
-
- return provider;
-}
-
-
-/**
- * camel_provider_auto_detect:
- * @provider: camel provider
- * @settings: currently set settings
- * @auto_detected: output hash table of auto-detected values
- * @ex: exception
- *
- * After filling in the standard Username/Hostname/Port/Path settings
- * (which must be set in @settings), if the provider supports it, you
- * may wish to have the provider auto-detect further settings based on
- * the aformentioned settings.
- *
- * If the provider does not support auto-detection, @auto_detected
- * will be set to %NULL. Otherwise the provider will attempt to
- * auto-detect whatever it can and file them into @auto_detected. If
- * for some reason it cannot auto-detect anything (not enough
- * information provided in @settings?) then @auto_deetected will be
- * set to %NULL and an exception may be set to explain why it failed.
- *
- * Returns 0 on success or -1 on fail.
- **/
-int
-camel_provider_auto_detect (CamelProvider *provider, CamelURL *url,
- GHashTable **auto_detected, CamelException *ex)
-{
- g_return_val_if_fail (provider != NULL, -1);
-
- if (provider->auto_detect) {
- return provider->auto_detect (url, auto_detected, ex);
- } else {
- *auto_detected = NULL;
- return 0;
- }
-}
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