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-rw-r--r--camel/camel-remote-store.c562
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diff --git a/camel/camel-remote-store.c b/camel/camel-remote-store.c
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-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/* camel-remote-store.c : class for an remote store */
-
-/*
- * Authors: Peter Williams <peterw@helixcode.com>
- * based on camel-imap-provider.c
- *
- * Copyright 2000 Helix Code, Inc. (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 Street #330, Boston, MA 02111-1307, USA.
- *
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include "camel-remote-store.h"
-#include "camel-folder.h"
-#include "camel-exception.h"
-#include "camel-session.h"
-#include "camel-stream.h"
-#include "camel-stream-buffer.h"
-#include "camel-tcp-stream.h"
-#include "camel-tcp-stream-raw.h"
-#if HAVE_NSS
-#include "camel-tcp-stream-ssl.h"
-#endif
-
-#include "camel-url.h"
-#include "string-utils.h"
-
-#include "camel-private.h"
-#include "camel-operation.h"
-
-#define d(x) x
-#if d(!)0
-extern gboolean camel_verbose_debug;
-#endif
-
-#define CSRVC(obj) (CAMEL_SERVICE_CLASS (CAMEL_OBJECT_GET_CLASS (obj)))
-#define CSTRC(obj) (CAMEL_STORE_CLASS (CAMEL_OBJECT_GET_CLASS (obj)))
-#define CRSC(obj) (CAMEL_REMOTE_STORE_CLASS (CAMEL_OBJECT_GET_CLASS (obj)))
-
-static CamelStoreClass *store_class = NULL;
-
-static void remote_construct (CamelService *service, CamelSession *session,
- CamelProvider *provider, CamelURL *url,
- CamelException *ex);
-static gboolean remote_connect (CamelService *service, CamelException *ex);
-static gboolean remote_disconnect (CamelService *service, gboolean clean, CamelException *ex);
-static GList *remote_query_auth_types(CamelService *service, CamelException *ex);
-static char *remote_get_name (CamelService *service, gboolean brief);
-static gint remote_send_string (CamelRemoteStore *store, CamelException *ex,
- char *fmt, va_list ap);
-static gint remote_send_stream (CamelRemoteStore *store, CamelStream *stream,
- CamelException *ex);
-static gint remote_recv_line (CamelRemoteStore *store, char **dest,
- CamelException *ex);
-
-static void
-camel_remote_store_class_init (CamelRemoteStoreClass *camel_remote_store_class)
-{
- /* virtual method overload */
- CamelServiceClass *camel_service_class =
- CAMEL_SERVICE_CLASS (camel_remote_store_class);
-
- store_class = CAMEL_STORE_CLASS (camel_type_get_global_classfuncs (camel_store_get_type ()));
-
- /* virtual method overload */
- camel_service_class->construct = remote_construct;
- camel_service_class->connect = remote_connect;
- camel_service_class->disconnect = remote_disconnect;
- camel_service_class->query_auth_types = remote_query_auth_types;
- camel_service_class->get_name = remote_get_name;
-
- camel_remote_store_class->send_string = remote_send_string;
- camel_remote_store_class->send_stream = remote_send_stream;
- camel_remote_store_class->recv_line = remote_recv_line;
- camel_remote_store_class->keepalive = NULL;
-}
-
-static void
-camel_remote_store_init (CamelObject *object)
-{
- CamelRemoteStore *remote_store = CAMEL_REMOTE_STORE (object);
-
- remote_store->istream = NULL;
- remote_store->ostream = NULL;
- remote_store->timeout_id = 0;
-
- remote_store->priv = g_malloc0(sizeof(*remote_store->priv));
-#ifdef ENABLE_THREADS
- remote_store->priv->stream_lock = e_mutex_new(E_MUTEX_REC);
-#endif
-}
-
-static void
-camel_remote_store_finalise(CamelObject *object)
-{
- CamelRemoteStore *remote_store = CAMEL_REMOTE_STORE (object);
-
-#ifdef ENABLE_THREADS
- e_mutex_destroy(remote_store->priv->stream_lock);
-#endif
- g_free(remote_store->priv);
-}
-
-
-CamelType
-camel_remote_store_get_type (void)
-{
- static CamelType camel_remote_store_type = CAMEL_INVALID_TYPE;
-
- if (camel_remote_store_type == CAMEL_INVALID_TYPE) {
- camel_remote_store_type =
- camel_type_register (CAMEL_STORE_TYPE, "CamelRemoteStore",
- sizeof (CamelRemoteStore),
- sizeof (CamelRemoteStoreClass),
- (CamelObjectClassInitFunc) camel_remote_store_class_init,
- NULL,
- (CamelObjectInitFunc) camel_remote_store_init,
- (CamelObjectFinalizeFunc) camel_remote_store_finalise);
- }
-
- return camel_remote_store_type;
-}
-
-static void
-remote_construct (CamelService *service, CamelSession *session,
- CamelProvider *provider, CamelURL *url,
- CamelException *ex)
-{
- CamelRemoteStore *remote_store = CAMEL_REMOTE_STORE (service);
-
- CAMEL_SERVICE_CLASS (store_class)->construct (service, session, provider, url, ex);
-
- if (camel_url_get_param (url, "use_ssl"))
- remote_store->use_ssl = TRUE;
-}
-
-
-/* Auth stuff... for now, nothing, but might eventually add SSH tunneling
- */
-
-static GList *
-remote_query_auth_types (CamelService *service, CamelException *ex)
-{
- return NULL;
-}
-
-GList *
-camel_remote_store_authtype_list (void)
-{
- return NULL;
-}
-
-
-static char *
-remote_get_name (CamelService *service, gboolean brief)
-{
- if (brief)
- return g_strdup_printf (_("%s server %s"),
- service->provider->name,
- service->url->host);
- else {
- return g_strdup_printf (_("%s service for %s on %s"),
- service->provider->name,
- service->url->user,
- service->url->host);
- }
-}
-
-static gboolean
-timeout_cb (gpointer data)
-{
- CamelRemoteStore *store = CAMEL_REMOTE_STORE(data);
-
- CRSC (data)->keepalive(store);
-
- return TRUE;
-}
-
-static gboolean
-remote_connect (CamelService *service, CamelException *ex)
-{
- CamelRemoteStore *store = CAMEL_REMOTE_STORE (service);
- CamelStream *tcp_stream;
- struct hostent *h;
- gint ret, port;
-
- h = camel_service_gethost (service, ex);
- if (!h)
- return FALSE;
-
- if (service->url->port)
- port = service->url->port;
- else if (store->use_ssl)
- port = store->default_ssl_port;
- else
- port = store->default_port;
-
-#ifdef HAVE_NSS
- if (store->use_ssl)
- tcp_stream = camel_tcp_stream_ssl_new (service, service->url->host);
- else
- tcp_stream = camel_tcp_stream_raw_new ();
-#else
- tcp_stream = camel_tcp_stream_raw_new ();
-#endif /* HAVE_NSS */
-
- ret = camel_tcp_stream_connect (CAMEL_TCP_STREAM (tcp_stream), h, port);
- camel_free_host(h);
- if (ret == -1) {
- if (errno == EINTR)
- camel_exception_set (ex, CAMEL_EXCEPTION_USER_CANCEL,
- _("Connection cancelled"));
- else
- camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE,
- _("Could not connect to %s (port %d): %s"),
- service->url->host ? service->url->host : _("(unknown host)"),
- port, g_strerror (errno));
- return FALSE;
- }
-
- /* parent class connect initialization */
- if (CAMEL_SERVICE_CLASS (store_class)->connect (service, ex) == FALSE)
- return FALSE;
-
- store->ostream = tcp_stream;
- store->istream = camel_stream_buffer_new (tcp_stream, CAMEL_STREAM_BUFFER_READ);
-
- /* Okay, good enough for us */
- CAMEL_SERVICE (store)->connected = TRUE;
-
- /* Add a timeout so that we can hopefully prevent getting disconnected */
- /* (Only if the implementation supports it) */
- if (CRSC (store)->keepalive) {
- CamelSession *session = camel_service_get_session (CAMEL_SERVICE (store));
-
- store->timeout_id = camel_session_register_timeout (session, 10 * 60 * 1000,
- timeout_cb,
- store);
- }
-
- return TRUE;
-}
-
-static gboolean
-remote_disconnect (CamelService *service, gboolean clean, CamelException *ex)
-{
- CamelRemoteStore *store = CAMEL_REMOTE_STORE (service);
-
- if (store->timeout_id) {
- camel_session_remove_timeout (camel_service_get_session (CAMEL_SERVICE (store)),
- store->timeout_id);
- store->timeout_id = 0;
- }
-
- if (!CAMEL_SERVICE_CLASS (store_class)->disconnect (service, clean, ex))
- return FALSE;
-
- if (store->istream) {
- camel_object_unref (CAMEL_OBJECT (store->istream));
- store->istream = NULL;
- }
-
- if (store->ostream) {
- camel_object_unref (CAMEL_OBJECT (store->ostream));
- store->ostream = NULL;
- }
-
- return TRUE;
-}
-
-static gint
-remote_send_string (CamelRemoteStore *store, CamelException *ex, char *fmt, va_list ap)
-{
- gchar *cmdbuf;
-
- /* Check for connectedness. Failed (or cancelled) operations will
- * close the connection. */
- if (!camel_remote_store_connected (store, ex))
- return -1;
-
- /* create the command */
- cmdbuf = g_strdup_vprintf (fmt, ap);
-
-#if d(!)0
- if (camel_verbose_debug) {
- if (strncmp (cmdbuf, "PASS ", 5) == 0)
- fprintf (stderr, "sending : PASS xxxx\n");
- else if (strstr (cmdbuf, "LOGIN \""))
- fprintf (stderr, "sending : ---- LOGIN \"xxxx\" \"xxxx\"\n");
- else
- fprintf (stderr, "sending : %s", cmdbuf);
- }
-#endif
-
- if (camel_stream_printf (store->ostream, "%s", cmdbuf) == -1) {
- if (errno == EINTR)
- camel_exception_set(ex, CAMEL_EXCEPTION_USER_CANCEL, _("Operation cancelled"));
- else
- camel_exception_set(ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE, strerror(errno));
- g_free (cmdbuf);
-
- camel_service_disconnect (CAMEL_SERVICE (store), FALSE, NULL);
- return -1;
- }
- g_free (cmdbuf);
-
- return 0;
-}
-
-/* FIXME: All of these functions need an api overhaul, they're not like
- any other functions, anywhere in the world ... */
-
-/**
- * camel_remote_store_send_string: Writes a string to the server
- * @store: a CamelRemoteStore
- * @ex: a CamelException
- * @fmt: the printf-style format to use for creating the string to send
- * @...: the arguments to the printf string @fmt
- * Return value: 0 on success, nonzero on error
- *
- * Formats the string and sends it to the server.
- **/
-
-gint
-camel_remote_store_send_string (CamelRemoteStore *store, CamelException *ex,
- char *fmt, ...)
-{
- va_list ap;
- gint ret;
-
- g_return_val_if_fail (CAMEL_IS_REMOTE_STORE (store), -1);
- g_return_val_if_fail (fmt, -1);
-
- va_start (ap, fmt);
- CAMEL_REMOTE_STORE_LOCK(store, stream_lock);
- ret = CRSC (store)->send_string (store, ex, fmt, ap);
- CAMEL_REMOTE_STORE_UNLOCK(store, stream_lock);
- va_end (ap);
-
- return ret;
-}
-
-static gint
-remote_send_stream (CamelRemoteStore *store, CamelStream *stream, CamelException *ex)
-{
- int ret;
-
- /* Check for connectedness. Failed (or cancelled) operations will
- * close the connection. */
-
- if (!camel_remote_store_connected (store, ex))
- return -1;
-
- d(fprintf (stderr, "(sending stream)\n"));
-
- ret = camel_stream_write_to_stream (stream, store->ostream);
- if (ret == -1) {
- if (errno == EINTR)
- camel_exception_set(ex, CAMEL_EXCEPTION_USER_CANCEL, _("Operation cancelled"));
- else
- camel_exception_set(ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE, strerror(errno));
-
- camel_service_disconnect (CAMEL_SERVICE (store), FALSE, NULL);
- }
-
- return ret;
-}
-
-/**
- * camel_remote_store_send_stream: Writes a CamelStream to the server
- * @store: a CamelRemoteStore
- * @stream: the stream to write
- * @ex: a CamelException
- * Return value: 0 on success, nonzero on error
- *
- * Sends the stream to the server.
- **/
-
-gint
-camel_remote_store_send_stream (CamelRemoteStore *store, CamelStream *stream, CamelException *ex)
-{
- int ret;
-
- g_return_val_if_fail (CAMEL_IS_REMOTE_STORE (store), -1);
- g_return_val_if_fail (CAMEL_IS_STREAM (stream), -1);
-
- CAMEL_REMOTE_STORE_LOCK(store, stream_lock);
-
- ret = CRSC (store)->send_stream (store, stream, ex);
-
- CAMEL_REMOTE_STORE_UNLOCK(store, stream_lock);
-
- return ret;
-}
-
-static int
-remote_recv_line (CamelRemoteStore *store, char **dest, CamelException *ex)
-{
- CamelStreamBuffer *stream;
- GByteArray *bytes;
- gchar buf[1024], *ret;
- gboolean exception = FALSE;
- gint nread;
-
- *dest = NULL;
-
- /* Check for connectedness. Failed (or cancelled) operations will
- * close the connection. We can't expect a read to have any
- * meaning if we reconnect, so always set an exception.
- */
-
- if (!camel_remote_store_connected (store, ex)) {
- camel_exception_set (ex, CAMEL_EXCEPTION_SERVICE_NOT_CONNECTED,
- g_strerror (errno));
- return -1;
- }
- stream = CAMEL_STREAM_BUFFER (store->istream);
-
- bytes = g_byte_array_new ();
-
- do {
- nread = camel_stream_buffer_gets (stream, buf, sizeof (buf));
- if (nread > 0)
- g_byte_array_append (bytes, buf, nread);
- } while (nread == sizeof (buf) - 1);
-
- if (nread == -1) {
- exception = TRUE;
- if (errno == EINTR)
- camel_exception_set(ex, CAMEL_EXCEPTION_USER_CANCEL, _("Operation cancelled"));
- else
- camel_exception_set(ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE, strerror(errno));
- } else if (bytes->len == 0) {
- exception = TRUE;
- camel_exception_set(ex, CAMEL_EXCEPTION_SERVICE_NOT_CONNECTED,
- _("Server unexpectedly disconnected"));
- }
- if (camel_exception_is_set (ex) || exception) {
- g_byte_array_free(bytes, TRUE);
- camel_service_disconnect (CAMEL_SERVICE (store), FALSE, NULL);
- return -1;
- }
-
- g_byte_array_append (bytes, "", 1);
- ret = bytes->data;
- nread = bytes->len - 1;
- g_byte_array_free (bytes, FALSE);
-
- /* strip off the CRLF sequence */
- while (nread > 0 && ret[nread] != '\r')
- ret[nread--] = '\0';
- ret[nread] = '\0';
-
- *dest = ret;
-
-#if d(!)0
- if (camel_verbose_debug)
- fprintf (stderr, "received: %s\n", *dest);
-#endif
-
- return nread;
-}
-
-/**
- * camel_remote_store_recv_line: Reads a line from the server
- * @store: a CamelRemoteStore
- * @dest: a pointer that will be set to the location of a buffer
- * holding the server's response
- * @ex: a CamelException
- * Return value: -1 on error, otherwise the length read.
- *
- * Reads a line from the server (terminated by \n or \r\n).
- **/
-
-gint
-camel_remote_store_recv_line (CamelRemoteStore *store, char **dest,
- CamelException *ex)
-{
- int ret;
-
- g_return_val_if_fail (CAMEL_IS_REMOTE_STORE (store), -1);
- g_return_val_if_fail (dest, -1);
-
- CAMEL_REMOTE_STORE_LOCK(store, stream_lock);
-
- ret = CRSC (store)->recv_line (store, dest, ex);
-
- CAMEL_REMOTE_STORE_UNLOCK(store, stream_lock);
-
- return ret;
-}
-
-static void
-refresh_folder_info (gpointer key, gpointer value, gpointer data)
-{
- CamelFolder *folder = CAMEL_FOLDER (value);
-
- camel_folder_refresh_info (folder, (CamelException *) data);
-}
-
-/**
- * camel_remote_store_refresh_folders: Refresh the folders that I
- * contain
- * @store: a CamelRemoteStore
- * @ex: a CamelException
- *
- * Refreshes the folders listed in the folders hashtable.
- **/
-void
-camel_remote_store_refresh_folders (CamelRemoteStore *store, CamelException *ex)
-{
- CAMEL_STORE_LOCK(store, cache_lock);
-
- g_hash_table_foreach (CAMEL_STORE (store)->folders, refresh_folder_info, ex);
-
- CAMEL_STORE_UNLOCK(store, cache_lock);
-}
-
-/**
- * camel_remote_store_connected:
- * @store: a CamelRemoteStore
- * @ex: a CamelException
- *
- * Ensure that the remote store is connected.
- *
- * Return value: Whether or not it is connected
- **/
-gboolean
-camel_remote_store_connected (CamelRemoteStore *store, CamelException *ex)
-{
- if (store->istream == NULL)
- return camel_service_connect (CAMEL_SERVICE (store), ex);
- return TRUE;
-}