/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ /* camel-imap-store.c : class for an imap store */ /* * Authors: Jeffrey Stedfast * * 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. * */ #include #include #include #include #include #include #include #include #include #include #include #include "camel-imap-store.h" #include "camel-imap-folder.h" #include "camel-imap-utils.h" #include "camel-folder.h" #include "camel-exception.h" #include "camel-session.h" #include "camel-stream.h" #include "camel-stream-buffer.h" #include "camel-stream-fs.h" #include "camel-url.h" #include "string-utils.h" #define d(x) x /* Specified in RFC 2060 */ #define IMAP_PORT 143 static CamelServiceClass *service_class = NULL; static void finalize (CamelObject *object); static gboolean imap_create (CamelFolder *folder, CamelException *ex); static gboolean imap_connect (CamelService *service, CamelException *ex); static gboolean imap_disconnect (CamelService *service, CamelException *ex); static GList *query_auth_types (CamelService *service, CamelException *ex); static void free_auth_types (CamelService *service, GList *authtypes); static char *get_name (CamelService *service, gboolean brief); static CamelFolder *get_folder (CamelStore *store, const char *folder_name, gboolean create, CamelException *ex); static char *get_folder_name (CamelStore *store, const char *folder_name, CamelException *ex); static gboolean imap_noop (gpointer data); /*static gboolean stream_is_alive (CamelStream *istream);*/ static int camel_imap_status (char *cmdid, char *respbuf); static void camel_imap_store_class_init (CamelImapStoreClass *camel_imap_store_class) { /* virtual method overload */ CamelServiceClass *camel_service_class = CAMEL_SERVICE_CLASS (camel_imap_store_class); CamelStoreClass *camel_store_class = CAMEL_STORE_CLASS (camel_imap_store_class); service_class = CAMEL_SERVICE_CLASS(camel_type_get_global_classfuncs (camel_service_get_type ())); /* virtual method overload */ camel_service_class->connect = imap_connect; camel_service_class->disconnect = imap_disconnect; camel_service_class->query_auth_types = query_auth_types; camel_service_class->free_auth_types = free_auth_types; camel_service_class->get_name = get_name; camel_store_class->get_folder = get_folder; camel_store_class->get_folder_name = get_folder_name; } static void camel_imap_store_init (gpointer object, gpointer klass) { CamelService *service = CAMEL_SERVICE (object); CamelStore *store = CAMEL_STORE (object); service->url_flags = (CAMEL_SERVICE_URL_NEED_USER | CAMEL_SERVICE_URL_NEED_HOST | CAMEL_SERVICE_URL_ALLOW_PATH); store->folders = g_hash_table_new (g_str_hash, g_str_equal); CAMEL_IMAP_STORE (store)->dir_sep = g_strdup ("/"); /*default*/ CAMEL_IMAP_STORE (store)->current_folder = NULL; CAMEL_IMAP_STORE (store)->timeout_id = 0; } CamelType camel_imap_store_get_type (void) { static CamelType camel_imap_store_type = CAMEL_INVALID_TYPE; if (camel_imap_store_type == CAMEL_INVALID_TYPE) { camel_imap_store_type = camel_type_register (CAMEL_STORE_TYPE, "CamelImapStore", sizeof (CamelImapStore), sizeof (CamelImapStoreClass), (CamelObjectClassInitFunc) camel_imap_store_class_init, NULL, (CamelObjectInitFunc) camel_imap_store_init, (CamelObjectFinalizeFunc) finalize); } return camel_imap_store_type; } static void finalize (CamelObject *object) { CamelException ex; camel_exception_init (&ex); imap_disconnect (CAMEL_SERVICE (object), &ex); camel_exception_clear (&ex); } static CamelServiceAuthType password_authtype = { "Password", "This option will connect to the IMAP server using a " "plaintext password.", "", TRUE }; static gboolean try_connect (CamelService *service, CamelException *ex) { struct hostent *h; struct sockaddr_in sin; gint fd; h = camel_service_gethost (service, ex); if (!h) return FALSE; sin.sin_family = h->h_addrtype; sin.sin_port = htons (service->url->port ? service->url->port : IMAP_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) { /* We don't want to set a CamelException here */ if (fd > -1) close (fd); return FALSE; } close (fd); return TRUE; } static GList * query_auth_types (CamelService *service, CamelException *ex) { GList *ret = NULL; gboolean passwd = TRUE; if (service->url) { passwd = try_connect (service, ex); if (camel_exception_get_id (ex) != CAMEL_EXCEPTION_NONE) return NULL; } if (passwd) ret = g_list_append (ret, &password_authtype); if (!ret) { camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE, "Could not connect to IMAP server on %s.", service->url->host ? service->url->host : "(unknown host)"); } return ret; } static void free_auth_types (CamelService *service, GList *authtypes) { g_list_free (authtypes); } static char * get_name (CamelService *service, gboolean brief) { if (brief) return g_strdup_printf ("IMAP server %s", service->url->host); else { return g_strdup_printf ("IMAP service for %s on %s", service->url->user, service->url->host); } } static gboolean imap_connect (CamelService *service, CamelException *ex) { CamelImapStore *store = CAMEL_IMAP_STORE (service); struct hostent *h; struct sockaddr_in sin; gint fd, status; gchar *buf, *msg, *result, *errbuf = NULL; gboolean authenticated = FALSE; /* FIXME: do we really need this here? */ /* *if (store->timeout_id) { * gtk_timeout_remove (store->timeout_id); * store->timeout_id = 0; *} */ h = camel_service_gethost (service, ex); if (!h) return FALSE; /* connect to the IMAP server */ sin.sin_family = h->h_addrtype; if (service->url->port) sin.sin_port = htons(service->url->port); else sin.sin_port = htons(IMAP_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 %d): %s", service->url->host ? service->url->host : "(unknown host)", service->url->port ? service->url->port : IMAP_PORT, strerror(errno)); if (fd > -1) close (fd); return FALSE; } /* parent class conect initialization */ service_class->connect (service, ex); store->ostream = camel_stream_fs_new_with_fd (fd); store->istream = camel_stream_buffer_new (store->ostream, CAMEL_STREAM_BUFFER_READ); store->command = 0; g_free (store->dir_sep); store->dir_sep = g_strdup ("/"); /* default dir sep */ /* Read the greeting, if any. */ buf = camel_stream_buffer_read_line (CAMEL_STREAM_BUFFER (store->istream)); if (!buf) { camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE, "Could not read greeting from IMAP " "server: %s", camel_exception_get_description (ex)); imap_disconnect (service, ex); return FALSE; } g_free (buf); /* authenticate the user */ while (!authenticated) { if (errbuf) { /* We need to un-cache the password before prompting again */ camel_session_query_authenticator (camel_service_get_session (service), CAMEL_AUTHENTICATOR_TELL, NULL, TRUE, service, "password", ex); g_free (service->url->passwd); service->url->passwd = NULL; } if (!service->url->authmech && !service->url->passwd) { gchar *prompt; prompt = g_strdup_printf ("%sPlease enter the IMAP password for %s@%s", errbuf ? errbuf : "", service->url->user, h->h_name); service->url->passwd = camel_session_query_authenticator (camel_service_get_session (service), CAMEL_AUTHENTICATOR_ASK, prompt, TRUE, service, "password", ex); g_free (prompt); g_free (errbuf); errbuf = NULL; if (!service->url->passwd) { imap_disconnect (service, ex); return FALSE; } } status = camel_imap_command (store, NULL, &msg, "LOGIN \"%s\" \"%s\"", service->url->user, service->url->passwd); if (status != CAMEL_IMAP_OK) { errbuf = g_strdup_printf ("Unable to authenticate to IMAP server.\n" "Error sending password: %s\n\n", msg ? msg : "(Unknown)"); } else { g_message ("IMAP Service sucessfully authenticated user %s", service->url->user); authenticated = TRUE; } } /* Now lets find out the IMAP capabilities */ status = camel_imap_command_extended (store, NULL, &result, "CAPABILITY"); if (status != CAMEL_IMAP_OK) { /* Non-fatal error, but we should still warn the user... */ CamelService *service = CAMEL_SERVICE (store); camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE, "Could not get capabilities on IMAP server %s: %s.", service->url->host, status != CAMEL_IMAP_FAIL && result ? result : "Unknown error"); } /* parse for capabilities here. */ if (e_strstrcase (result, "IMAP4REV1")) store->server_level = IMAP_LEVEL_IMAP4REV1; else if (e_strstrcase (result, "IMAP4")) store->server_level = IMAP_LEVEL_IMAP4; else store->server_level = IMAP_LEVEL_UNKNOWN; if ((store->server_level >= IMAP_LEVEL_IMAP4REV1) || (e_strstrcase (result, "STATUS"))) store->has_status_capability = TRUE; else store->has_status_capability = FALSE; g_free (result); /* We now need to find out which directory separator this daemon uses */ status = camel_imap_command_extended (store, NULL, &result, "LIST \"\" \"\""); if (status != CAMEL_IMAP_OK) { /* Again, this is non-fatal */ CamelService *service = CAMEL_SERVICE (store); camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE, "Could not get directory separator on IMAP server %s: %s.", service->url->host, status != CAMEL_IMAP_FAIL && result ? result : "Unknown error"); } else { char *flags, *sep, *folder; if (imap_parse_list_response (result, "", &flags, &sep, &folder)) { if (*sep) { g_free (store->dir_sep); store->dir_sep = g_strdup (sep); } } g_free (flags); g_free (sep); g_free (folder); } /* default directory separator */ if (!store->dir_sep) store->dir_sep = g_strdup ("/"); g_free (result); /* Lets add a timeout so that we can hopefully prevent getting disconnected */ /* FIXME fast timeout */ store->timeout_id = camel_session_register_timeout (camel_service_get_session (service), 10 * 60 * 1000, imap_noop, service); /*store->timeout_id = gtk_timeout_add (600000, imap_noop, store);*/ return TRUE; } static gboolean imap_disconnect (CamelService *service, CamelException *ex) { CamelImapStore *store = CAMEL_IMAP_STORE (service); char *result; int status; if (!service->connected) return TRUE; /* send the logout command */ status = camel_imap_command_extended (CAMEL_IMAP_STORE (service), NULL, &result, "LOGOUT"); if (status != CAMEL_IMAP_OK) { /* Oh fuck it, we're disconnecting anyway... */ } g_free (result); if (!service_class->disconnect (service, 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; } g_free (store->dir_sep); store->dir_sep = NULL; store->current_folder = NULL; if (store->timeout_id) { camel_session_remove_timeout (camel_service_get_session (CAMEL_SERVICE (store)), store->timeout_id); store->timeout_id = 0; } return TRUE; } const gchar * camel_imap_store_get_toplevel_dir (CamelImapStore *store) { CamelURL *url = CAMEL_SERVICE (store)->url; g_assert (url != NULL); return url->path; } static gboolean imap_folder_exists (CamelFolder *folder) { CamelStore *store = CAMEL_STORE (folder->parent_store); CamelURL *url = CAMEL_SERVICE (store)->url; gchar *result, *folder_path, *dir_sep; gint status; dir_sep = CAMEL_IMAP_STORE (folder->parent_store)->dir_sep; g_return_val_if_fail (dir_sep, FALSE); if (url && url->path && *(url->path + 1) && strcmp (folder->full_name, "INBOX")) folder_path = g_strdup_printf ("%s%s%s", url->path + 1, dir_sep, folder->full_name); else folder_path = g_strdup (folder->full_name); status = camel_imap_command_extended (CAMEL_IMAP_STORE (folder->parent_store), NULL, &result, "EXAMINE %s", folder_path); if (status != CAMEL_IMAP_OK) { g_free (result); g_free (folder_path); return FALSE; } g_free (folder_path); g_free (result); return TRUE; } static gboolean imap_create (CamelFolder *folder, CamelException *ex) { CamelStore *store = CAMEL_STORE (folder->parent_store); CamelURL *url = CAMEL_SERVICE (store)->url; gchar *result, *folder_path, *dir_sep; gint status; g_return_val_if_fail (folder != NULL, FALSE); if (!(folder->full_name || folder->name)) { camel_exception_set (ex, CAMEL_EXCEPTION_FOLDER_INVALID, "invalid folder path. Use set_name ?"); return FALSE; } if (!strcmp (folder->full_name, "INBOX")) return TRUE; if (imap_folder_exists (folder)) return TRUE; /* create the directory for the subfolder */ dir_sep = CAMEL_IMAP_STORE (folder->parent_store)->dir_sep; g_return_val_if_fail (dir_sep, FALSE); if (url && url->path && *(url->path + 1) && strcmp (folder->full_name, "INBOX")) folder_path = g_strdup_printf ("%s%s%s", url->path + 1, dir_sep, folder->full_name); else folder_path = g_strdup (folder->full_name); status = camel_imap_command_extended (CAMEL_IMAP_STORE (folder->parent_store), NULL, &result, "CREATE %s", folder_path); if (status != CAMEL_IMAP_OK) { CamelService *service = CAMEL_SERVICE (folder->parent_store); camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE, "Could not CREATE %s on IMAP server %s: %s.", folder_path, service->url->host, status != CAMEL_IMAP_FAIL && result ? result : "Unknown error"); g_free (result); g_free (folder_path); return FALSE; } g_free (folder_path); g_free (result); return TRUE; } static gboolean folder_is_selectable (CamelStore *store, const char *folder_path) { char *result, *flags, *sep, *folder; int status; if (!strcmp (folder_path, "INBOX")) return TRUE; status = camel_imap_command_extended (CAMEL_IMAP_STORE (store), NULL, &result, "LIST \"\" %s", folder_path); if (status != CAMEL_IMAP_OK) { g_free (result); return FALSE; } if (imap_parse_list_response (result, "", &flags, &sep, &folder)) { gboolean retval; retval = !e_strstrcase (flags, "NoSelect"); g_free (flags); g_free (sep); g_free (folder); return retval; } g_free (flags); g_free (sep); g_free (folder); return FALSE; } static CamelFolder * get_folder (CamelStore *store, const char *folder_name, gboolean create, CamelException *ex) { CamelURL *url = CAMEL_SERVICE (store)->url; CamelFolder *new_folder; char *folder_path, *dir_sep; g_return_val_if_fail (store != NULL, NULL); g_return_val_if_fail (folder_name != NULL, NULL); dir_sep = CAMEL_IMAP_STORE (store)->dir_sep; /* if we're trying to get the top-level dir, we really want the namespace */ if (!dir_sep || !strcmp (folder_name, dir_sep)) folder_path = g_strdup (url->path + 1); else folder_path = g_strdup (folder_name); new_folder = camel_imap_folder_new (store, folder_path, ex); /* this is the top-level dir, we already know it exists - it has to! */ if (!strcmp (folder_name, dir_sep)) return new_folder; if (create && !imap_create (new_folder, ex)) { if (!folder_is_selectable (store, folder_path)) { camel_exception_clear (ex); new_folder->can_hold_messages = FALSE; return new_folder; } else { g_free (folder_path); camel_object_unref (CAMEL_OBJECT (new_folder)); return NULL; } } return new_folder; } static gchar * get_folder_name (CamelStore *store, const char *folder_name, CamelException *ex) { return g_strdup (folder_name); } static gboolean imap_noop (gpointer data) { CamelImapStore *store = CAMEL_IMAP_STORE (data); char *result; int status; status = camel_imap_command_extended (store, store->current_folder, &result, "NOOP"); g_free (result); return TRUE; } #if 0 static gboolean stream_is_alive (CamelStream *istream) { CamelStreamFs *fs_stream; char buf; g_return_val_if_fail (istream != NULL, FALSE); fs_stream = CAMEL_STREAM_FS (CAMEL_STREAM_BUFFER (istream)->stream); g_return_val_if_fail (fs_stream->fd != -1, FALSE); if (read (fs_stream->fd, (void *) &buf, 0) == 0) return TRUE; return FALSE; } #endif static int camel_imap_status (char *cmdid, char *respbuf) { char *retcode; if (respbuf) { if (!strncmp (respbuf, cmdid, strlen (cmdid))) { retcode = imap_next_word (respbuf); if (!strncmp (retcode, "OK", 2)) return CAMEL_IMAP_OK; else if (!strncmp (retcode, "NO", 2)) return CAMEL_IMAP_NO; else if (!strncmp (retcode, "BAD", 3)) return CAMEL_IMAP_BAD; } } return CAMEL_IMAP_FAIL; } /** * camel_imap_command: Send a command to a IMAP server. * @store: the IMAP store * @folder: The folder to perform the operation in * @ret: a pointer to return the full server response in * @fmt: a printf-style format string, followed by arguments * * This camel method sends the command specified by @fmt and the following * arguments to the connected IMAP 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_imap_command * will set it to point to a buffer containing the rest of the * response from the IMAP server. (If @ret was passed but there was * no extended response, @ret will be set to NULL.) The caller function is * responsible for freeing @ret. * * Return value: one of CAMEL_IMAP_OK (command executed successfully), * CAMEL_IMAP_NO (operational error message), CAMEL_IMAP_BAD (error * message from the server), or CAMEL_IMAP_FAIL (a protocol-level error * occurred, and Camel is uncertain of the result of the command.) **/ gint camel_imap_command (CamelImapStore *store, CamelFolder *folder, char **ret, char *fmt, ...) { CamelURL *url = CAMEL_SERVICE (store)->url; gchar *cmdbuf, *respbuf; gchar *cmdid; va_list ap; gint status = CAMEL_IMAP_OK; if (folder && store->current_folder != folder && strncmp (fmt, "CREATE", 5)) { /* We need to select the correct mailbox first */ char *r, *folder_path, *dir_sep; int s; dir_sep = store->dir_sep; if (url && url->path && *(url->path + 1) && strcmp (folder->full_name, "INBOX")) folder_path = g_strdup_printf ("%s%s%s", url->path + 1, dir_sep, folder->full_name); else folder_path = g_strdup (folder->full_name); s = camel_imap_command_extended (store, NULL, &r, "SELECT %s", folder_path); g_free (folder_path); if (!r || s != CAMEL_IMAP_OK) { *ret = r; store->current_folder = NULL; return s; } g_free (r); store->current_folder = folder; } /* create the command */ cmdid = g_strdup_printf ("A%.5d", store->command++); va_start (ap, fmt); cmdbuf = g_strdup_vprintf (fmt, ap); va_end (ap); d(fprintf (stderr, "sending : %s %s\r\n", cmdid, cmdbuf)); if (camel_stream_printf (store->ostream, "%s %s\r\n", cmdid, cmdbuf) == -1) { g_free (cmdbuf); g_free (cmdid); if (*ret) *ret = g_strdup (strerror (errno)); return CAMEL_IMAP_FAIL; } g_free (cmdbuf); /* Read the response */ respbuf = camel_stream_buffer_read_line (CAMEL_STREAM_BUFFER (store->istream)); if (respbuf == NULL) { if (*ret) *ret = g_strdup (strerror (errno)); return CAMEL_IMAP_FAIL; } d(fprintf (stderr, "received: %s\n", respbuf ? respbuf : "(null)")); status = camel_imap_status (cmdid, respbuf); g_free (cmdid); if (ret) { if (status != CAMEL_IMAP_FAIL && respbuf) { char *word; word = imap_next_word (respbuf); /* word should now point to NO or BAD */ *ret = g_strdup (imap_next_word (word)); } else { *ret = NULL; } } g_free (respbuf); return status; } /** * camel_imap_command_extended: Send a command to a IMAP server and get * a multi-line response. * @store: the IMAP store * @folder: The folder to perform the operation in * @ret: a pointer to return the full server response in * @fmt: a printf-style format string, followed by arguments * * This camel method sends the IMAP command specified by @fmt and the * following arguments to the IMAP store specified by @store. If the * store is in a disconnected state, camel_imap_command_extended will first * re-connect the store before sending the specified IMAP command. It then * reads the server's response and parses out the status code. If the caller * passed a non-NULL pointer for @ret, camel_imap_command_extended will set * it to point to a buffer containing the rest of the response from the IMAP * server. (If @ret was passed but there was no extended response, @ret will * be set to NULL.) The caller function is responsible for freeing @ret. * * This camel method gets the additional data returned by "multi-line" IMAP * commands, such as SELECT, LIST, FETCH, and various other commands. * The returned data is un-byte-stuffed, and has lines termined by * newlines rather than CR/LF pairs. * * Return value: one of CAMEL_IMAP_OK (command executed successfully), * CAMEL_IMAP_NO (operational error message), CAMEL_IMAP_BAD (error * message from the server), or CAMEL_IMAP_FAIL (a protocol-level error * occurred, and Camel is uncertain of the result of the command.) **/ gint camel_imap_command_extended (CamelImapStore *store, CamelFolder *folder, char **ret, char *fmt, ...) { CamelService *service = CAMEL_SERVICE (store); CamelURL *url = service->url; gint len = 0, recent = 0, status = CAMEL_IMAP_OK; gchar *cmdid, *cmdbuf, *respbuf; GPtrArray *data; va_list app; int i; #if 0 /* First make sure we're connected... */ if (!service->connected || !stream_is_alive (store->istream)) { CamelException *ex; ex = camel_exception_new (); if (!imap_disconnect (service, ex) || !imap_connect (service, ex)) { camel_exception_free (ex); *ret = NULL; return CAMEL_IMAP_FAIL; } service->connected = TRUE; camel_exception_free (ex); } #endif if (folder && store->current_folder != folder && strncmp (fmt, "CREATE", 6)) { /* We need to select the correct mailbox first */ char *r, *folder_path, *dir_sep; int s; dir_sep = store->dir_sep; if (url && url->path && *(url->path + 1) && strcmp (folder->full_name, "INBOX")) folder_path = g_strdup_printf ("%s%s%s", url->path + 1, dir_sep, folder->full_name); else folder_path = g_strdup (folder->full_name); s = camel_imap_command_extended (store, NULL, &r, "SELECT %s", folder_path); g_free (folder_path); if (!r || s != CAMEL_IMAP_OK) { *ret = r; store->current_folder = NULL; return s; } g_free (r); store->current_folder = folder; } /* Create the command */ cmdid = g_strdup_printf ("A%.5d", store->command++); va_start (app, fmt); cmdbuf = g_strdup_vprintf (fmt, app); va_end (app); d(fprintf (stderr, "sending : %s %s\r\n", cmdid, cmdbuf)); if (camel_stream_printf (store->ostream, "%s %s\r\n", cmdid, cmdbuf) == -1) { g_free (cmdbuf); g_free (cmdid); *ret = g_strdup (strerror (errno)); return CAMEL_IMAP_FAIL; } g_free (cmdbuf); data = g_ptr_array_new (); while (1) { CamelStreamBuffer *stream = CAMEL_STREAM_BUFFER (store->istream); char *ptr; respbuf = camel_stream_buffer_read_line (stream); if (!respbuf || !strncmp (respbuf, cmdid, strlen (cmdid))) { /* IMAP's last response starts with our command id */ d(fprintf (stderr, "received: %s\n", respbuf ? respbuf : "(null)")); #if 0 if (!respbuf && strcmp (fmt, "LOGOUT")) { /* we need to force a disconnect here? */ CamelException *ex; ex = camel_exception_new (); imap_disconnect (service, ex); camel_exception_free (ex); } #endif break; } d(fprintf (stderr, "received: %s\n", respbuf)); g_ptr_array_add (data, respbuf); len += strlen (respbuf) + 1; /* If recent was somehow set and this response doesn't begin with a '*' then recent must have been misdetected */ if (recent && *respbuf != '*') recent = 0; if (*respbuf == '*' && (ptr = strstr (respbuf, "RECENT"))) { char *rcnt; d(fprintf (stderr, "*** We may have found a 'RECENT' flag: %s\n", respbuf)); /* Make sure it's in the form: "* %d RECENT" */ rcnt = imap_next_word (respbuf); if (*rcnt >= '0' && *rcnt <= '9' && !strncmp ("RECENT", imap_next_word (rcnt), 6)) recent = atoi (rcnt); } } if (respbuf) { g_ptr_array_add (data, respbuf); len += strlen (respbuf) + 1; status = camel_imap_status (cmdid, respbuf); } else { status = CAMEL_IMAP_FAIL; } g_free (cmdid); if (status == CAMEL_IMAP_OK) { char *p; *ret = g_malloc0 (len + 1); for (i = 0, p = *ret; i < data->len; i++) { char *ptr, *datap; datap = (char *) data->pdata[i]; ptr = (*datap == '.') ? datap + 1 : datap; len = strlen (ptr); memcpy (p, ptr, len); p += len; *p++ = '\n'; } *p = '\0'; } else { if (status != CAMEL_IMAP_FAIL && respbuf) { char *word; word = imap_next_word (respbuf); /* word should now point to NO or BAD */ *ret = g_strdup (imap_next_word (word)); } else { *ret = NULL; } } for (i = 0; i < data->len; i++) g_free (data->pdata[i]); g_ptr_array_free (data, TRUE); if (folder && recent > 0) { CamelException *ex; ex = camel_exception_new (); camel_imap_folder_changed (folder, recent, ex); camel_exception_free (ex); } return status; } /** * camel_imap_command_preliminary: Send a preliminary command to the * IMAP server. * @store: the IMAP store * @ret: a pointer to return the full server response in * @cmdid: a pointer to return the command identifier (for use in * camel_imap_command_continuation) * @fmt: a printf-style format string, followed by arguments * * This camel method sends a preliminary IMAP command specified by * @fmt and the following arguments to the IMAP store specified by * @store. This function is meant for use with multi-transactional * IMAP communications like Kerberos authentication and APPEND. * * If the caller passed a non-NULL pointer for @ret, * camel_imap_command_preliminary will set it to point to a buffer * containing the rest of the response from the IMAP server. The * caller function is responsible for freeing @ret. * * Return value: one of CAMEL_IMAP_PLUS or CAMEL_IMAP_FAIL * * Note: on success (CAMEL_IMAP_PLUS), you will need to follow up with * a camel_imap_command_continuation call. **/ gint camel_imap_command_preliminary (CamelImapStore *store, char **ret, char **cmdid, char *fmt, ...) { gchar *cmdbuf, *respbuf; gint status = CAMEL_IMAP_OK; va_list app; /* Create the command */ *cmdid = g_strdup_printf ("A%.5d", store->command++); va_start (app, fmt); cmdbuf = g_strdup_vprintf (fmt, app); va_end (app); d(fprintf (stderr, "sending : %s %s\r\n", *cmdid, cmdbuf)); if (camel_stream_printf (store->ostream, "%s %s\r\n", *cmdid, cmdbuf) == -1) { g_free (cmdbuf); if (ret) *ret = g_strdup (strerror (errno)); return CAMEL_IMAP_FAIL; } g_free (cmdbuf); respbuf = camel_stream_buffer_read_line (CAMEL_STREAM_BUFFER (store->istream)); if (respbuf) { switch (*respbuf) { case '+': /* continuation request */ status = CAMEL_IMAP_PLUS; break; default: status = camel_imap_status (*cmdid, respbuf); } if (ret) *ret = g_strdup (imap_next_word (respbuf)); } else { status = CAMEL_IMAP_FAIL; if (ret) *ret = NULL; } return status; } /** * camel_imap_command_continuation: Handle another transaction with the IMAP * server and possibly get a multi-line response. * @store: the IMAP store * @cmdid: The command identifier returned from camel_imap_command_preliminary * @ret: a pointer to return the full server response in * @cstream: a CamelStream containing a continuation response. * * This method is for sending continuing responses to the IMAP server. Meant * to be used as a followup to camel_imap_command_preliminary. * camel_imap_command_continuation will set @ret to point to a buffer * containing the rest of the response from the IMAP server. The * caller function is responsible for freeing @ret. * * Return value: one of CAMEL_IMAP_PLUS (command requires additional data), * CAMEL_IMAP_OK (command executed successfully), * CAMEL_IMAP_NO (operational error message), * CAMEL_IMAP_BAD (error message from the server), or * CAMEL_IMAP_FAIL (a protocol-level error occurred, and Camel is uncertain * of the result of the command.) **/ gint camel_imap_command_continuation (CamelImapStore *store, char **ret, char *cmdid, CamelStream *cstream) { gint len = 0, status = CAMEL_IMAP_OK; gchar *respbuf; GPtrArray *data; int i; d(fprintf (stderr, "sending continuation stream\r\n")); if (camel_stream_write_to_stream (cstream, store->ostream) == -1) { d(fprintf (stderr, "failed to send continuation stream\r\n")); *ret = g_strdup (strerror (errno)); return CAMEL_IMAP_FAIL; } d(fprintf (stderr, "okie dokie...\r\n")); data = g_ptr_array_new (); while (1) { CamelStreamBuffer *stream = CAMEL_STREAM_BUFFER (store->istream); respbuf = camel_stream_buffer_read_line (stream); if (!respbuf || *respbuf == '+' || !strncmp (respbuf, cmdid, strlen (cmdid))) { /* IMAP's last response starts with our command id or a continuation request */ d(fprintf (stderr, "received: %s\n", respbuf ? respbuf : "(null)")); break; } d(fprintf (stderr, "received: %s\n", respbuf)); g_ptr_array_add (data, respbuf); len += strlen (respbuf) + 1; } if (respbuf) { g_ptr_array_add (data, respbuf); len += strlen (respbuf) + 1; switch (*respbuf) { case '+': status = CAMEL_IMAP_PLUS; break; default: status = camel_imap_status (cmdid, respbuf); } } else { status = CAMEL_IMAP_FAIL; } if (status == CAMEL_IMAP_OK || status == CAMEL_IMAP_PLUS) { char *p; *ret = g_malloc0 (len + 1); for (i = 0, p = *ret; i < data->len; i++) { char *ptr, *datap; datap = (char *) data->pdata[i]; ptr = (*datap == '.') ? datap + 1 : datap; len = strlen (ptr); memcpy (p, ptr, len); p += len; *p++ = '\n'; } *p = '\0'; } else { if (status != CAMEL_IMAP_FAIL && respbuf) { char *word; word = imap_next_word (respbuf); if (*respbuf == '-') *ret = g_strdup (word); else *ret = g_strdup (imap_next_word (word)); } else { *ret = NULL; } } for (i = 0; i < data->len; i++) g_free (data->pdata[i]); g_ptr_array_free (data, TRUE); return status; }