/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* camel-session.c : Abstract class for an email session */
/*
*
* Author :
* Bertrand Guiheneuf <bertrand@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 "camel-session.h"
#include "camel-store.h"
#include "camel-transport.h"
#include "camel-exception.h"
#include "string-utils.h"
#include "camel-url.h"
#include "hash-table-utils.h"
static GtkObjectClass *parent_class=NULL;
/* Returns the class for a CamelSession */
#define CSS_CLASS(so) CAMEL_SESSION_CLASS (GTK_OBJECT(so)->klass)
static void
camel_session_class_init (CamelSessionClass *camel_session_class)
{
parent_class = gtk_type_class (gtk_object_get_type ());
/* virtual method definition */
/* virtual method overload */
}
static void
camel_session_init (CamelSession *session)
{
session->store_provider_list = g_hash_table_new (g_strcase_hash, g_strcase_equal);
session->transport_provider_list = g_hash_table_new (g_strcase_hash, g_strcase_equal);
}
GtkType
camel_session_get_type (void)
{
static GtkType camel_session_type = 0;
if (!camel_session_type) {
GtkTypeInfo camel_session_info =
{
"CamelSession",
sizeof (CamelSession),
sizeof (CamelSessionClass),
(GtkClassInitFunc) camel_session_class_init,
(GtkObjectInitFunc) camel_session_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
camel_session_type = gtk_type_unique (gtk_object_get_type (), &camel_session_info);
}
return camel_session_type;
}
CamelSession *
camel_session_new (CamelAuthCallback authenticator)
{
CamelSession *session = gtk_type_new (CAMEL_SESSION_TYPE);
session->authenticator = authenticator;
return session;
}
/**
* camel_session_set_provider: set the default provider for a protocol
* @session: session object for wich the provider will the default
* @provider: provider object
*
* Set the default implementation for a protocol. The protocol
* is determined by provider->protocol field (See CamelProvider).
* It overrides the default provider for this protocol.
*
**/
void
camel_session_set_provider (CamelSession *session, CamelProvider *provider)
{
GHashTable *table;
g_assert(session);
g_assert(provider);
if (provider->provider_type == PROVIDER_STORE)
table = session->store_provider_list;
else
table = session->transport_provider_list;
g_hash_table_insert (table, (gpointer)(provider->protocol), (gpointer)(provider));
}
/**
* camel_session_get_store_from_provider: create a folder instance for a given provider
* @session: session object the folder will be initialized with
* @provider: provider folder to instantiate
* @ex: a CamelException
*
*
* Return value: the newly instantiated store
**/
CamelStore *
camel_session_get_store_from_provider (CamelSession *session,
CamelProvider *provider,
CamelException *ex)
{
g_assert(session);
g_assert(provider);
return CAMEL_STORE (camel_service_new (provider->object_type,
session, NULL, ex));
}
/**
* get_store_for_protocol_with_url: private helper routine
* @session: CamelSession object
* @protocol: protocol name
* @url: a URL, or NULL
* @ex: a CamelException
*
* Used by camel_session_get_store_for_protocol and
* camel_session_get_store.
*
* Return value: initialized store associated with this protocol, or NULL if no provider was found.
**/
static CamelStore *
get_store_for_protocol_with_url (CamelSession *session, const char *protocol,
CamelURL *url, CamelException *ex)
{
const CamelProvider *provider = NULL;
/* See if there is a provider assiciated with this
* protocol in this session.
*/
provider = CAMEL_PROVIDER (g_hash_table_lookup (session->store_provider_list, protocol));
if (!provider) {
/* No provider was found in this session. See
* if there is a registered provider for this
* protocol.
*/
provider = camel_provider_get_for_protocol (protocol, PROVIDER_STORE);
}
if (!provider) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_URL_INVALID,
"No provider available for protocol "
"`%s'", protocol);
return NULL;
}
return CAMEL_STORE (camel_service_new (provider->object_type,
session, url, ex));
}
/**
* camel_session_get_store_for_protocol: get the store associated to a protocol
* @session: CamelSession object
* @protocol: protocol name
* @ex: a CamelException
*
* Return a CamelStore object associated with a given
* store protocol. If a provider has been set for this
* protocol in the session @session using
* camel_session_set_provider (), then a store
* obtained from this provider is returned.
* Otherwise, if one or more providers corresponding
* to this protocol have been registered (See
* camel_provider_register_as_module), the last registered
* one is used.
*
* Return value: store associated with this protocol, or NULL if no provider was found.
**/
CamelStore *
camel_session_get_store_for_protocol (CamelSession *session,
const char *protocol,
CamelException *ex)
{
return get_store_for_protocol_with_url (session, protocol, NULL, ex);
}
/**
* camel_session_get_store: get a store object for an URL
* @session: session object
* @url_string: url
* @ex: a CamelException
*
* return a store corresponding to an URL.
*
* Return value: the store, or NULL if no provider correponds to the protocol
**/
CamelStore *
camel_session_get_store (CamelSession *session, const char *url_string,
CamelException *ex)
{
CamelURL *url;
CamelStore *store;
url = camel_url_new (url_string, ex);
if (!url)
return NULL;
store = get_store_for_protocol_with_url (session, url->protocol,
url, ex);
if (store == NULL)
camel_url_free (url);
return store;
}
/**
* camel_session_query_authenticator: query the session authenticator
* @session: session object
* @prompt: prompt to use if authenticator can query the user
* @secret: whether or not the data is secret (eg, a password)
* @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 request authentication
* information it needs to complete a connection. If the authenticator
* stores any authentication information in configuration files, it
* should use @service and @item as keys to find the right piece of
* information. If it doesn't store authentication information in config
* files, it should use the given @prompt to ask the user for the
* information. If @secret is set, the user's input should 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 when it is
* done with it.
*
* Return value: the authentication information or NULL.
**/
char *
camel_session_query_authenticator (CamelSession *session, char *prompt,
gboolean secret,
CamelService *service, char *item,
CamelException *ex)
{
return session->authenticator (prompt, secret, service, item, ex);
}
/**
* camel_session_get_transport_for_protocol: get the transport for a protocol
* @session: the session
* @protocol: protocol name
* @ex: a CamelException
*
* Return a CamelTransport object associated with a given transport
* protocol. If a provider has been set for this protocol in the
* session @session using camel_session_set_provider (), then a transport
* obtained from this provider is returned. Otherwise, if one or more
* providers corresponding to this protocol have been registered (See
* camel_provider_register_as_module), the last registered one is
* used.
*
* Return value: transport associated with this protocol, or NULL if no provider was found.
**/
CamelTransport *
camel_session_get_transport_for_protocol (CamelSession *session,
const char *protocol,
CamelException *ex)
{
const CamelProvider *provider = NULL;
/* See if there is a provider assiciated with this
* protocol in this session.
*/
provider = CAMEL_PROVIDER (g_hash_table_lookup (session->transport_provider_list, protocol));
if (!provider) {
/* No provider was found in this session. See
* if there is a registered provider for this
* protocol.
*/
provider = camel_provider_get_for_protocol (protocol, PROVIDER_TRANSPORT);
}
if (!provider)
return NULL;
return CAMEL_TRANSPORT (gtk_object_new (provider->object_type, NULL));
}
