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-rw-r--r--camel/providers/pop3/camel-pop3-store.c453
1 files changed, 0 insertions, 453 deletions
diff --git a/camel/providers/pop3/camel-pop3-store.c b/camel/providers/pop3/camel-pop3-store.c
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--- a/camel/providers/pop3/camel-pop3-store.c
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-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/* camel-pop3-store.c : class for a pop3 store */
-
-/*
- * Authors:
- * Dan Winship <danw@helixcode.com>
- *
- * Copyright (C) 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 Place, Suite 330, Boston, MA 02111-1307
- * USA
- */
-
-#include "config.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 "camel-pop3-store.h"
-#include "camel-pop3-folder.h"
-#include "camel-stream-buffer.h"
-#include "camel-stream-fs.h"
-#include "camel-session.h"
-#include "camel-exception.h"
-#include "md5-utils.h"
-#include "url-util.h"
-
-/* Specified in RFC 1939 */
-#define POP3_PORT 110
-
-static CamelServiceClass *service_class = NULL;
-
-static void finalize (GtkObject *object);
-
-static gboolean pop3_connect (CamelService *service, CamelException *ex);
-static gboolean pop3_disconnect (CamelService *service, CamelException *ex);
-static GList *query_auth_types (CamelService *service);
-static void free_auth_types (CamelService *service, GList *authtypes);
-
-static CamelFolder *get_folder (CamelStore *store, const gchar *folder_name,
- CamelException *ex);
-
-
-static void
-camel_pop3_store_class_init (CamelPop3StoreClass *camel_pop3_store_class)
-{
- GtkObjectClass *object_class =
- GTK_OBJECT_CLASS (camel_pop3_store_class);
- CamelServiceClass *camel_service_class =
- CAMEL_SERVICE_CLASS (camel_pop3_store_class);
- CamelStoreClass *camel_store_class =
- CAMEL_STORE_CLASS (camel_pop3_store_class);
-
- service_class = gtk_type_class (camel_service_get_type ());
-
- /* virtual method overload */
- object_class->finalize = finalize;
-
- camel_service_class->connect = pop3_connect;
- camel_service_class->disconnect = pop3_disconnect;
- camel_service_class->query_auth_types = query_auth_types;
- camel_service_class->free_auth_types = free_auth_types;
-
- camel_store_class->get_root_folder = camel_pop3_folder_new;
- camel_store_class->get_default_folder = camel_pop3_folder_new;
- camel_store_class->get_folder = get_folder;
-}
-
-
-
-static void
-camel_pop3_store_init (gpointer object, gpointer klass)
-{
- CamelService *service = CAMEL_SERVICE (object);
-
- service->url_flags = ( CAMEL_SERVICE_URL_NEED_USER |
- CAMEL_SERVICE_URL_NEED_HOST );
-}
-
-
-
-
-GtkType
-camel_pop3_store_get_type (void)
-{
- static GtkType camel_pop3_store_type = 0;
-
- if (!camel_pop3_store_type) {
- GtkTypeInfo camel_pop3_store_info =
- {
- "CamelPop3Store",
- sizeof (CamelPop3Store),
- sizeof (CamelPop3StoreClass),
- (GtkClassInitFunc) camel_pop3_store_class_init,
- (GtkObjectInitFunc) camel_pop3_store_init,
- /* reserved_1 */ NULL,
- /* reserved_2 */ NULL,
- (GtkClassInitFunc) NULL,
- };
-
- camel_pop3_store_type = gtk_type_unique (CAMEL_STORE_TYPE, &camel_pop3_store_info);
- }
-
- return camel_pop3_store_type;
-}
-
-static void
-finalize (GtkObject *object)
-{
- CamelException ex;
-
- camel_exception_init (&ex);
- pop3_disconnect (CAMEL_SERVICE (object), &ex);
- camel_exception_free (&ex);
-}
-
-
-static CamelServiceAuthType password_authtype = {
- "Password/APOP",
-
- "This option will connect to the POP server using the APOP "
- "protocol if possible, or a plaintext password if not.",
-
- "",
- TRUE
-};
-
-static GList
-*query_auth_types (CamelService *service)
-{
- GList *ret;
-
- ret = g_list_append (NULL, &password_authtype);
- return ret;
-}
-
-static void
-free_auth_types (CamelService *service, GList *authtypes)
-{
- g_list_free (authtypes);
-}
-
-/**
- * camel_pop3_store_open: Connect to the server if we are currently
- * disconnected.
- * @store: the store
- * @ex: a CamelException
- *
- * The POP protocol does not allow deleted messages to be expunged
- * except by closing the connection. Thus, camel_pop3_folder_{open,close}
- * sometimes need to connect to or disconnect from the server. This
- * routine reconnects to the server if we have disconnected.
- *
- **/
-void
-camel_pop3_store_open (CamelPop3Store *store, CamelException *ex)
-{
- CamelService *service = CAMEL_SERVICE (store);
-
- if (!camel_service_is_connected (service))
- pop3_connect (service, ex);
-}
-
-/**
- * camel_pop3_store_close: Close the connection to the server and
- * possibly expunge deleted messages.
- * @store: the store
- * @expunge: whether or not to expunge deleted messages
- * @ex: a CamelException
- *
- * See camel_pop3_store_open for an explanation of why this is needed.
- *
- **/
-void
-camel_pop3_store_close (CamelPop3Store *store, gboolean expunge,
- CamelException *ex)
-{
- if (expunge)
- camel_pop3_command (store, NULL, "QUIT");
- else
- camel_pop3_command (store, NULL, "RSET");
- pop3_disconnect (CAMEL_SERVICE (store), ex);
-}
-
-static gboolean
-pop3_connect (CamelService *service, CamelException *ex)
-{
- struct hostent *h;
- struct sockaddr_in sin;
- int port, fd, status, apoplen;
- char *buf, *apoptime, *pass;
- CamelPop3Store *store = CAMEL_POP3_STORE (service);
-
- if (!service_class->connect (service, ex))
- return FALSE;
-
- h = camel_service_gethost (service, ex);
- if (!h)
- return FALSE;
- port = camel_service_getport (service, "pop3", POP3_PORT, "tcp", ex);
- if (port == -1)
- return FALSE;
-
- pass = g_strdup (service->url->passwd);
- if (!pass) {
- char *prompt = g_strdup_printf ("Please enter the POP3 password for %s@%s",
- service->url->user, h->h_name);
- pass = camel_session_query_authenticator (camel_service_get_session (service),
- prompt, TRUE,
- service, "password",
- ex);
- g_free (prompt);
- if (!pass)
- return FALSE;
- }
-
- sin.sin_family = h->h_addrtype;
- sin.sin_port = port;
- memcpy (&sin.sin_addr, h->h_addr, sizeof (sin.sin_addr));
-
- fd = socket (h->h_addrtype, SOCK_STREAM, 0);
- if (fd == -1 ||
- connect (fd, (struct sockaddr *)&sin, sizeof(sin)) == -1) {
- camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE,
- "Could not connect to %s (port %s): %s",
- service->url->host, service->url->port,
- strerror(errno));
- if (fd > -1)
- close (fd);
- g_free (pass);
- return FALSE;
- }
-
- store->ostream = camel_stream_fs_new_with_fd (fd);
- store->istream = camel_stream_buffer_new (store->ostream,
- CAMEL_STREAM_BUFFER_READ);
-
- /* Read the greeting, note APOP timestamp, if any. */
- buf = camel_stream_buffer_read_line (CAMEL_STREAM_BUFFER (store->istream));
- if (!buf) {
- g_free (pass);
- return -1;
- }
- apoptime = strchr (buf, '<');
- if (apoptime) {
- int len = strcspn (apoptime, ">");
-
- apoptime = g_strndup (apoptime, len);
- } else
- apoptime = NULL;
- g_free (buf);
-
- /* Authenticate via APOP if we can, USER/PASS if we can't. */
- status = CAMEL_POP3_FAIL;
- if (apoptime && apoptime[apoplen] == '>') {
- char *secret, md5asc[32], *d;
- unsigned char md5sum[16], *s;
-
- secret = g_strdup_printf("%.*s%s", apoplen + 1, apoptime,
- pass);
- md5_get_digest(secret, strlen(secret), md5sum);
- g_free(secret);
-
- for (s = md5sum, d = md5asc; d < md5asc + 32; s++, d += 2)
- sprintf(d, "%.2x", *s);
-
- status = camel_pop3_command(store, NULL, "APOP %s %s",
- service->url->user, md5asc);
- }
-
- if (status != CAMEL_POP3_OK ) {
- status = camel_pop3_command(store, NULL, "USER %s",
- service->url->user);
- if (status == CAMEL_POP3_OK) {
- status = camel_pop3_command(store, NULL,
- "PASS %s", pass);
- }
- }
-
- if (status != CAMEL_POP3_OK) {
- camel_exception_set (ex,
- CAMEL_EXCEPTION_SERVICE_CANT_AUTHENTICATE,
- "Unable to authenticate to POP server.");
- return FALSE;
- }
-
- g_free (pass);
- return TRUE;
-}
-
-static gboolean
-pop3_disconnect (CamelService *service, CamelException *ex)
-{
- CamelPop3Store *store = CAMEL_POP3_STORE (service);
-
- if (!service->connected)
- return TRUE;
-
- if (!service_class->disconnect (service, ex))
- return FALSE;
-
- /* Closing the buffered write stream will close the
- * unbuffered read stream wrapped inside it as well.
- */
- camel_stream_close (store->ostream);
- gtk_object_unref (GTK_OBJECT (store->ostream));
- store->ostream = NULL;
- store->istream = NULL;
- return TRUE;
-}
-
-static CamelFolder *get_folder (CamelStore *store, const gchar *folder_name,
- CamelException *ex)
-{
- if (!strcasecmp (folder_name, "inbox"))
- return camel_pop3_folder_new (store, ex);
- else {
- camel_exception_setv (ex, CAMEL_EXCEPTION_FOLDER_INVALID,
- "No such folder `%s'.", folder_name);
- return NULL;
- }
-}
-
-/**
- * camel_pop3_command: Send a command to a POP3 server.
- * @store: the POP3 store
- * @ret: a pointer to return the full server response in
- * @fmt: a printf-style format string, followed by arguments
- *
- * This command sends the command specified by @fmt and the following
- * arguments to the connected POP3 store specified by @store. It then
- * reads the server's response and parses out the status code. If
- * the caller passed a non-NULL pointer for @ret, camel_pop3_command
- * will set it to point to an buffer containing the rest of the
- * response from the POP3 server. (If @ret was passed but there was
- * no extended response, @ret will be set to NULL.) The caller must
- * free this buffer when it is done with it.
- *
- * Return value: one of CAMEL_POP3_OK (command executed successfully),
- * CAMEL_POP3_ERR (command encounted an error), or CAMEL_POP3_FAIL
- * (a protocol-level error occurred, and Camel is uncertain of the
- * result of the command.)
- **/
-int
-camel_pop3_command (CamelPop3Store *store, char **ret, char *fmt, ...)
-{
- char *cmdbuf, *respbuf;
- va_list ap;
- int status;
-
- va_start (ap, fmt);
- cmdbuf = g_strdup_vprintf (fmt, ap);
- va_end (ap);
-
- /* Send the command */
- camel_stream_write (store->ostream, cmdbuf, strlen (cmdbuf));
- g_free (cmdbuf);
- camel_stream_write (store->ostream, "\r\n", 2);
-
- /* Read the response */
- respbuf = camel_stream_buffer_read_line (CAMEL_STREAM_BUFFER (store->istream));
- if (!strncmp (respbuf, "+OK", 3))
- status = CAMEL_POP3_OK;
- else if (!strncmp (respbuf, "-ERR", 4))
- status = CAMEL_POP3_ERR;
- else
- status = CAMEL_POP3_FAIL;
-
- if (ret) {
- if (status != CAMEL_POP3_FAIL) {
- *ret = strchr (respbuf, ' ');
- if (*ret)
- *ret = g_strdup (*ret + 1);
- } else
- *ret = NULL;
- }
- g_free (respbuf);
-
- return status;
-}
-
-/**
- * camel_pop3_command_get_additional_data: get "additional data" from
- * a POP3 command.
- * @store: the POP3 store
- *
- * This command gets the additional data returned by "multi-line" POP
- * commands, such as LIST, RETR, TOP, and UIDL. This command _must_
- * be called after a successful (CAMEL_POP3_OK) call to
- * camel_pop3_command for a command that has a multi-line response.
- * The returned data is un-byte-stuffed, and has lines termined by
- * newlines rather than CR/LF pairs.
- *
- * Return value: the data, which the caller must free.
- **/
-char *
-camel_pop3_command_get_additional_data (CamelPop3Store *store)
-{
- CamelStreamBuffer *stream = CAMEL_STREAM_BUFFER (store->istream);
- GPtrArray *data;
- char *buf;
- int i, status = CAMEL_POP3_OK;
-
- data = g_ptr_array_new ();
- while (1) {
- buf = camel_stream_buffer_read_line (stream);
- if (!buf) {
- status = CAMEL_POP3_FAIL;
- break;
- }
-
- if (!strcmp (buf, "."))
- break;
- if (*buf == '.')
- memmove (buf, buf + 1, strlen (buf));
- g_ptr_array_add (data, buf);
- }
-
- if (status == CAMEL_POP3_OK) {
- /* Append an empty string to the end of the array
- * so when we g_strjoinv it, we get a "\n" after
- * the last real line.
- */
- g_ptr_array_add (data, "");
- g_ptr_array_add (data, NULL);
- buf = g_strjoinv ("\n", (char **)data->pdata);
- } else
- buf = NULL;
-
- for (i = 0; i < data->len - 2; i++)
- g_free (data->pdata[i]);
- g_ptr_array_free (data, TRUE);
-
- return buf;
-}