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Diffstat (limited to 'src/imap.c')
| -rw-r--r-- | src/imap.c | 3976 |
1 files changed, 3976 insertions, 0 deletions
diff --git a/src/imap.c b/src/imap.c new file mode 100644 index 00000000..d038162f --- /dev/null +++ b/src/imap.c @@ -0,0 +1,3976 @@ +/* + * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client + * Copyright (C) 1999-2004 Hiroyuki Yamamoto + * + * 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. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include "defs.h" + +#include <glib.h> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <dirent.h> +#include <unistd.h> +#include <ctype.h> +#include <time.h> +#if HAVE_ICONV +# include <iconv.h> +#endif + +#include "intl.h" +#include "imap.h" +#include "socket.h" +#include "ssl.h" +#include "recv.h" +#include "procmsg.h" +#include "procheader.h" +#include "folder.h" +#include "prefs_account.h" +#include "codeconv.h" +#include "md5.h" +#include "base64.h" +#include "utils.h" +#include "prefs_common.h" +#include "inputdialog.h" + +#define IMAP4_PORT 143 +#if USE_SSL +#define IMAPS_PORT 993 +#endif + +#define IMAP_CMD_LIMIT 1000 + +#define QUOTE_IF_REQUIRED(out, str) \ +{ \ + if (*str != '"' && strpbrk(str, " \t(){}%*") != NULL) { \ + gchar *__tmp; \ + gint len; \ + \ + len = strlen(str) + 3; \ + Xalloca(__tmp, len, return IMAP_ERROR); \ + g_snprintf(__tmp, len, "\"%s\"", str); \ + out = __tmp; \ + } else { \ + Xstrdup_a(out, str, return IMAP_ERROR); \ + } \ +} + +static GList *session_list = NULL; + +static void imap_folder_init (Folder *folder, + const gchar *name, + const gchar *path); + +static Folder *imap_folder_new (const gchar *name, + const gchar *path); +static void imap_folder_destroy (Folder *folder); + +static Session *imap_session_new (PrefsAccount *account); +static void imap_session_destroy (Session *session); +/* static void imap_session_destroy_all (void); */ + +static gint imap_search_flags (IMAPSession *session, + GArray **uids, + GHashTable **flags_table); +static gint imap_fetch_flags (IMAPSession *session, + GArray **uids, + GHashTable **flags_table); + +static GSList *imap_get_msg_list (Folder *folder, + FolderItem *item, + gboolean use_cache); +static gchar *imap_fetch_msg (Folder *folder, + FolderItem *item, + gint uid); +static MsgInfo *imap_get_msginfo (Folder *folder, + FolderItem *item, + gint uid); +static gint imap_add_msg (Folder *folder, + FolderItem *dest, + const gchar *file, + MsgFlags *flags, + gboolean remove_source); +static gint imap_add_msgs (Folder *folder, + FolderItem *dest, + GSList *file_list, + gboolean remove_source, + gint *first); + +static gint imap_move_msg (Folder *folder, + FolderItem *dest, + MsgInfo *msginfo); +static gint imap_move_msgs (Folder *folder, + FolderItem *dest, + GSList *msglist); +static gint imap_copy_msg (Folder *folder, + FolderItem *dest, + MsgInfo *msginfo); +static gint imap_copy_msgs (Folder *folder, + FolderItem *dest, + GSList *msglist); + +static gint imap_remove_msg (Folder *folder, + FolderItem *item, + MsgInfo *msginfo); +static gint imap_remove_msgs (Folder *folder, + FolderItem *item, + GSList *msglist); +static gint imap_remove_all_msg (Folder *folder, + FolderItem *item); + +static gboolean imap_is_msg_changed (Folder *folder, + FolderItem *item, + MsgInfo *msginfo); + +static gint imap_close (Folder *folder, + FolderItem *item); + +static gint imap_scan_folder (Folder *folder, + FolderItem *item); +static gint imap_scan_tree (Folder *folder); + +static gint imap_create_tree (Folder *folder); + +static FolderItem *imap_create_folder (Folder *folder, + FolderItem *parent, + const gchar *name); +static gint imap_rename_folder (Folder *folder, + FolderItem *item, + const gchar *name); +static gint imap_remove_folder (Folder *folder, + FolderItem *item); + +static IMAPSession *imap_session_get (Folder *folder); + +static gint imap_greeting (IMAPSession *session); +static gint imap_auth (IMAPSession *session, + const gchar *user, + const gchar *pass, + IMAPAuthType type); + +static gint imap_scan_tree_recursive (IMAPSession *session, + FolderItem *item); +static GSList *imap_parse_list (IMAPSession *session, + const gchar *real_path, + gchar *separator); + +static void imap_create_missing_folders (Folder *folder); +static FolderItem *imap_create_special_folder + (Folder *folder, + SpecialFolderItemType stype, + const gchar *name); + +static gint imap_do_copy_msgs (Folder *folder, + FolderItem *dest, + GSList *msglist, + gboolean remove_source); +static gint imap_remove_msgs_by_seq_set (Folder *folder, + FolderItem *item, + GSList *seq_list); + +static GSList *imap_get_uncached_messages (IMAPSession *session, + FolderItem *item, + guint32 first_uid, + guint32 last_uid, + gboolean update_count); +static void imap_delete_cached_message (FolderItem *item, + guint32 uid); +static GSList *imap_delete_cached_messages (GSList *mlist, + FolderItem *item, + guint32 first_uid, + guint32 last_uid); +static void imap_delete_all_cached_messages (FolderItem *item); + +#if USE_SSL +static SockInfo *imap_open (const gchar *server, + gushort port, + SSLType ssl_type); +#else +static SockInfo *imap_open (const gchar *server, + gushort port); +#endif + +static gint imap_msg_list_change_perm_flags (GSList *msglist, + MsgPermFlags flags, + gboolean is_set); +static gchar *imap_get_flag_str (IMAPFlags flags); +static gint imap_set_message_flags (IMAPSession *session, + const gchar *seq_set, + IMAPFlags flags, + gboolean is_set); +static gint imap_select (IMAPSession *session, + IMAPFolder *folder, + const gchar *path, + gint *exists, + gint *recent, + gint *unseen, + guint32 *uid_validity); +static gint imap_status (IMAPSession *session, + IMAPFolder *folder, + const gchar *path, + gint *messages, + gint *recent, + guint32 *uid_next, + guint32 *uid_validity, + gint *unseen); + +static void imap_parse_namespace (IMAPSession *session, + IMAPFolder *folder); +static void imap_get_namespace_by_list (IMAPSession *session, + IMAPFolder *folder); +static IMAPNameSpace *imap_find_namespace (IMAPFolder *folder, + const gchar *path); +static gchar imap_get_path_separator (IMAPFolder *folder, + const gchar *path); +static gchar *imap_get_real_path (IMAPFolder *folder, + const gchar *path); + +static gchar *imap_parse_atom (IMAPSession *session, + gchar *src, + gchar *dest, + gint dest_len, + GString *str); +static MsgFlags imap_parse_flags (const gchar *flag_str); +static IMAPFlags imap_parse_imap_flags (const gchar *flag_str); +static MsgInfo *imap_parse_envelope (IMAPSession *session, + FolderItem *item, + GString *line_str); + +static gboolean imap_has_capability (IMAPSession *session, + const gchar *capability); +static void imap_capability_free (IMAPSession *session); + +/* low-level IMAP4rev1 commands */ +static gint imap_cmd_capability (IMAPSession *session); +static gint imap_cmd_authenticate + (IMAPSession *session, + const gchar *user, + const gchar *pass, + IMAPAuthType type); +static gint imap_cmd_login (IMAPSession *session, + const gchar *user, + const gchar *pass); +static gint imap_cmd_logout (IMAPSession *session); +static gint imap_cmd_noop (IMAPSession *session); +#if USE_SSL +static gint imap_cmd_starttls (IMAPSession *session); +#endif +static gint imap_cmd_namespace (IMAPSession *session, + gchar **ns_str); +static gint imap_cmd_list (IMAPSession *session, + const gchar *ref, + const gchar *mailbox, + GPtrArray *argbuf); +static gint imap_cmd_do_select (IMAPSession *session, + const gchar *folder, + gboolean examine, + gint *exists, + gint *recent, + gint *unseen, + guint32 *uid_validity); +static gint imap_cmd_select (IMAPSession *session, + const gchar *folder, + gint *exists, + gint *recent, + gint *unseen, + guint32 *uid_validity); +static gint imap_cmd_examine (IMAPSession *session, + const gchar *folder, + gint *exists, + gint *recent, + gint *unseen, + guint32 *uid_validity); +static gint imap_cmd_create (IMAPSession *session, + const gchar *folder); +static gint imap_cmd_rename (IMAPSession *session, + const gchar *oldfolder, + const gchar *newfolder); +static gint imap_cmd_delete (IMAPSession *session, + const gchar *folder); +static gint imap_cmd_envelope (IMAPSession *session, + const gchar *seq_set); +static gint imap_cmd_search (IMAPSession *session, + const gchar *criteria, + GArray **result); +static gint imap_cmd_fetch (IMAPSession *session, + guint32 uid, + const gchar *filename); +static gint imap_cmd_append (IMAPSession *session, + const gchar *destfolder, + const gchar *file, + IMAPFlags flags, + guint32 *new_uid); +static gint imap_cmd_copy (IMAPSession *session, + const gchar *seq_set, + const gchar *destfolder); +static gint imap_cmd_store (IMAPSession *session, + const gchar *seq_set, + const gchar *sub_cmd); +static gint imap_cmd_expunge (IMAPSession *session); +static gint imap_cmd_close (IMAPSession *session); + +static gint imap_cmd_ok (IMAPSession *session, + GPtrArray *argbuf); +static void imap_cmd_gen_send (IMAPSession *session, + const gchar *format, ...); +static gint imap_cmd_gen_recv (IMAPSession *session, + gchar **ret); + +/* misc utility functions */ +static gchar *strchr_cpy (const gchar *src, + gchar ch, + gchar *dest, + gint len); +static gchar *get_quoted (const gchar *src, + gchar ch, + gchar *dest, + gint len); +static gchar *search_array_contain_str (GPtrArray *array, + gchar *str); +static gchar *search_array_str (GPtrArray *array, + gchar *str); +static void imap_path_separator_subst (gchar *str, + gchar separator); + +static gchar *imap_modified_utf7_to_locale (const gchar *mutf7_str); +static gchar *imap_locale_to_modified_utf7 (const gchar *from); + +static GSList *imap_get_seq_set_from_msglist (GSList *msglist); +static void imap_seq_set_free (GSList *seq_list); + +static GHashTable *imap_get_uid_table (GArray *array); + +static gboolean imap_rename_folder_func (GNode *node, + gpointer data); + +static FolderClass imap_class = +{ + F_IMAP, + + imap_folder_new, + imap_folder_destroy, + + imap_scan_tree, + imap_create_tree, + + imap_get_msg_list, + imap_fetch_msg, + imap_get_msginfo, + imap_add_msg, + imap_add_msgs, + imap_move_msg, + imap_move_msgs, + imap_copy_msg, + imap_copy_msgs, + imap_remove_msg, + imap_remove_msgs, + imap_remove_all_msg, + imap_is_msg_changed, + imap_close, + imap_scan_folder, + + imap_create_folder, + imap_rename_folder, + imap_remove_folder +}; + + +FolderClass *imap_get_class(void) +{ + return &imap_class; +} + +static Folder *imap_folder_new(const gchar *name, const gchar *path) +{ + Folder *folder; + + folder = (Folder *)g_new0(IMAPFolder, 1); + imap_folder_init(folder, name, path); + + return folder; +} + +static void imap_folder_destroy(Folder *folder) +{ + gchar *dir; + + dir = folder_get_path(folder); + if (is_dir_exist(dir)) + remove_dir_recursive(dir); + g_free(dir); + + folder_remote_folder_destroy(REMOTE_FOLDER(folder)); +} + +static void imap_folder_init(Folder *folder, const gchar *name, + const gchar *path) +{ + folder->klass = imap_get_class(); + folder_remote_folder_init(folder, name, path); +} + +static IMAPSession *imap_session_get(Folder *folder) +{ + RemoteFolder *rfolder = REMOTE_FOLDER(folder); + + g_return_val_if_fail(folder != NULL, NULL); + g_return_val_if_fail(FOLDER_TYPE(folder) == F_IMAP, NULL); + g_return_val_if_fail(folder->account != NULL, NULL); + + if (!prefs_common.online_mode) + return NULL; + + if (!rfolder->session) { + rfolder->session = imap_session_new(folder->account); + if (rfolder->session) + imap_parse_namespace(IMAP_SESSION(rfolder->session), + IMAP_FOLDER(folder)); + return IMAP_SESSION(rfolder->session); + } + + if (time(NULL) - rfolder->session->last_access_time < + SESSION_TIMEOUT_INTERVAL) { + return IMAP_SESSION(rfolder->session); + } + + if (imap_cmd_noop(IMAP_SESSION(rfolder->session)) != IMAP_SUCCESS) { + log_warning(_("IMAP4 connection to %s has been" + " disconnected. Reconnecting...\n"), + folder->account->recv_server); + session_destroy(rfolder->session); + rfolder->session = imap_session_new(folder->account); + if (rfolder->session) + imap_parse_namespace(IMAP_SESSION(rfolder->session), + IMAP_FOLDER(folder)); + } + + return IMAP_SESSION(rfolder->session); +} + +static gint imap_greeting(IMAPSession *session) +{ + gchar *greeting; + gint ok; + + if ((ok = imap_cmd_gen_recv(session, &greeting)) != IMAP_SUCCESS) + return ok; + + if (greeting[0] != '*' || greeting[1] != ' ') + ok = IMAP_ERROR; + else if (!strncmp(greeting + 2, "OK", 2)) + ok = IMAP_SUCCESS; + else if (!strncmp(greeting + 2, "PREAUTH", 7)) { + session->authenticated = TRUE; + ok = IMAP_SUCCESS; + } else + ok = IMAP_ERROR; + + g_free(greeting); + return ok; +} + +static gint imap_auth(IMAPSession *session, const gchar *user, + const gchar *pass, IMAPAuthType type) +{ + gint ok; + + if (type == 0 || type == IMAP_AUTH_LOGIN) + ok = imap_cmd_login(session, user, pass); + else + ok = imap_cmd_authenticate(session, user, pass, type); + + if (ok == IMAP_SUCCESS) + session->authenticated = TRUE; + + return ok; +} + +static Session *imap_session_new(PrefsAccount *account) +{ + IMAPSession *session; + SockInfo *sock; + gchar *pass; + gushort port; + + g_return_val_if_fail(account != NULL, NULL); + g_return_val_if_fail(account->recv_server != NULL, NULL); + g_return_val_if_fail(account->userid != NULL, NULL); + + pass = account->passwd; + if (!pass) { + gchar *tmp_pass; + tmp_pass = input_dialog_query_password(account->recv_server, + account->userid); + if (!tmp_pass) + return NULL; + Xstrdup_a(pass, tmp_pass, {g_free(tmp_pass); return NULL;}); + g_free(tmp_pass); + } + +#if USE_SSL + port = account->set_imapport ? account->imapport + : account->ssl_imap == SSL_TUNNEL ? IMAPS_PORT : IMAP4_PORT; +#else + port = account->set_imapport ? account->imapport : IMAP4_PORT; +#endif + + log_message(_("creating IMAP4 connection to %s:%d ...\n"), + account->recv_server, port); + +#if USE_SSL + if ((sock = imap_open(account->recv_server, port, + account->ssl_imap)) == NULL) +#else + if ((sock = imap_open(account->recv_server, port)) == NULL) +#endif + return NULL; + + session = g_new0(IMAPSession, 1); + + session_init(SESSION(session)); + + SESSION(session)->type = SESSION_IMAP; + SESSION(session)->server = g_strdup(account->recv_server); + SESSION(session)->sock = sock; + SESSION(session)->last_access_time = time(NULL); + SESSION(session)->data = NULL; + + SESSION(session)->destroy = imap_session_destroy; + + session->authenticated = FALSE; + session->mbox = NULL; + session->cmd_count = 0; + + session_list = g_list_append(session_list, session); + + if (imap_greeting(session) != IMAP_SUCCESS) { + session_destroy(SESSION(session)); + return NULL; + } + + if (imap_cmd_capability(session) != IMAP_SUCCESS) { + session_destroy(SESSION(session)); + return NULL; + } + if (imap_has_capability(session, "UIDPLUS")) + session->uidplus = TRUE; + +#if USE_SSL + if (account->ssl_imap == SSL_STARTTLS && + imap_has_capability(session, "STARTTLS")) { + gint ok; + + ok = imap_cmd_starttls(session); + if (ok != IMAP_SUCCESS) { + log_warning(_("Can't start TLS session.\n")); + session_destroy(SESSION(session)); + return NULL; + } + if (!ssl_init_socket_with_method(sock, SSL_METHOD_TLSv1)) { + session_destroy(SESSION(session)); + return NULL; + } + } +#endif + + if (!session->authenticated && + imap_auth(session, account->userid, pass, account->imap_auth_type) + != IMAP_SUCCESS) { + imap_cmd_logout(session); + session_destroy(SESSION(session)); + return NULL; + } + + return SESSION(session); +} + +static void imap_session_destroy(Session *session) +{ + imap_capability_free(IMAP_SESSION(session)); + g_free(IMAP_SESSION(session)->mbox); + session_list = g_list_remove(session_list, session); +} + +#if 0 +static void imap_session_destroy_all(void) +{ + while (session_list != NULL) { + IMAPSession *session = (IMAPSession *)session_list->data; + + imap_cmd_logout(session); + session_destroy(SESSION(session)); + } +} +#endif + +#define THROW goto catch + +static gint imap_search_flags(IMAPSession *session, GArray **uids, + GHashTable **flags_table) +{ + gint ok; + gint i; + GArray *flag_uids; + GHashTable *unseen_table; + GHashTable *flagged_table; + GHashTable *answered_table; + guint32 uid; + IMAPFlags flags; + + ok = imap_cmd_search(session, "ALL", uids); + if (ok != IMAP_SUCCESS) return ok; + + ok = imap_cmd_search(session, "UNSEEN", &flag_uids); + if (ok != IMAP_SUCCESS) { + g_array_free(*uids, TRUE); + return ok; + } + unseen_table = imap_get_uid_table(flag_uids); + g_array_free(flag_uids, TRUE); + ok = imap_cmd_search(session, "FLAGGED", &flag_uids); + if (ok != IMAP_SUCCESS) { + g_hash_table_destroy(unseen_table); + g_array_free(*uids, TRUE); + return ok; + } + flagged_table = imap_get_uid_table(flag_uids); + g_array_free(flag_uids, TRUE); + ok = imap_cmd_search(session, "ANSWERED", &flag_uids); + if (ok != IMAP_SUCCESS) { + g_hash_table_destroy(flagged_table); + g_hash_table_destroy(unseen_table); + g_array_free(*uids, TRUE); + return ok; + } + answered_table = imap_get_uid_table(flag_uids); + g_array_free(flag_uids, TRUE); + + *flags_table = g_hash_table_new(NULL, g_direct_equal); + + for (i = 0; i < (*uids)->len; i++) { + uid = g_array_index(*uids, guint32, i); + flags = IMAP_FLAG_DRAFT; + if (!g_hash_table_lookup(unseen_table, GUINT_TO_POINTER(uid))) + flags |= IMAP_FLAG_SEEN; + if (g_hash_table_lookup(flagged_table, GUINT_TO_POINTER(uid))) + flags |= IMAP_FLAG_FLAGGED; + if (g_hash_table_lookup(answered_table, GUINT_TO_POINTER(uid))) + flags |= IMAP_FLAG_ANSWERED; + g_hash_table_insert(*flags_table, GUINT_TO_POINTER(uid), + GINT_TO_POINTER(flags)); + } + + g_hash_table_destroy(answered_table); + g_hash_table_destroy(flagged_table); + g_hash_table_destroy(unseen_table); + + return IMAP_SUCCESS; +} + +static gint imap_fetch_flags(IMAPSession *session, GArray **uids, + GHashTable **flags_table) +{ + gint ok; + gchar *tmp; + gchar *cur_pos; + gchar buf[IMAPBUFSIZE]; + guint32 uid; + IMAPFlags flags; + + imap_cmd_gen_send(session, "UID FETCH 1:* (UID FLAGS)"); + + *uids = g_array_new(FALSE, FALSE, sizeof(guint32)); + *flags_table = g_hash_table_new(NULL, g_direct_equal); + + while ((ok = imap_cmd_gen_recv(session, &tmp)) == IMAP_SUCCESS) { + if (tmp[0] != '*' || tmp[1] != ' ') { + g_free(tmp); + break; + } + cur_pos = tmp + 2; + +#define PARSE_ONE_ELEMENT(ch) \ +{ \ + cur_pos = strchr_cpy(cur_pos, ch, buf, sizeof(buf)); \ + if (cur_pos == NULL) { \ + g_warning("cur_pos == NULL\n"); \ + g_free(tmp); \ + g_hash_table_destroy(*flags_table); \ + g_array_free(*uids, TRUE); \ + return IMAP_ERROR; \ + } \ +} + + PARSE_ONE_ELEMENT(' '); + PARSE_ONE_ELEMENT(' '); + if (strcmp(buf, "FETCH") != 0) { + g_free(tmp); + continue; + } + if (*cur_pos != '(') { + g_free(tmp); + continue; + } + cur_pos++; + uid = 0; + flags = 0; + + while (*cur_pos != '\0' && *cur_pos != ')') { + while (*cur_pos == ' ') cur_pos++; + + if (!strncmp(cur_pos, "UID ", 4)) { + cur_pos += 4; + uid = strtoul(cur_pos, &cur_pos, 10); + } else if (!strncmp(cur_pos, "FLAGS ", 6)) { + cur_pos += 6; + if (*cur_pos != '(') { + g_warning("*cur_pos != '('\n"); + break; + } + cur_pos++; + PARSE_ONE_ELEMENT(')'); + flags = imap_parse_imap_flags(buf); + flags |= IMAP_FLAG_DRAFT; + } else { + g_warning("invalid FETCH response: %s\n", cur_pos); + break; + } + } + +#undef PARSE_ONE_ELEMENT + + if (uid > 0) { + g_array_append_val(*uids, uid); + g_hash_table_insert(*flags_table, GUINT_TO_POINTER(uid), + GINT_TO_POINTER(flags)); + } + + g_free(tmp); + } + + if (ok != IMAP_SUCCESS) { + g_hash_table_destroy(*flags_table); + g_array_free(*uids, TRUE); + } + + return ok; +} + +static GSList *imap_get_msg_list(Folder *folder, FolderItem *item, + gboolean use_cache) +{ + GSList *mlist = NULL; + IMAPSession *session; + gint ok, exists = 0, recent = 0, unseen = 0; + guint32 uid_validity = 0; + guint32 first_uid = 0, last_uid = 0; + + g_return_val_if_fail(folder != NULL, NULL); + g_return_val_if_fail(item != NULL, NULL); + g_return_val_if_fail(FOLDER_TYPE(folder) == F_IMAP, NULL); + g_return_val_if_fail(folder->account != NULL, NULL); + + item->new = item->unread = item->total = 0; + + session = imap_session_get(folder); + + if (!session) { + mlist = procmsg_read_cache(item, FALSE); + item->last_num = procmsg_get_last_num_in_msg_list(mlist); + procmsg_set_flags(mlist, item); + return mlist; + } + + ok = imap_select(session, IMAP_FOLDER(folder), item->path, + &exists, &recent, &unseen, &uid_validity); + if (ok != IMAP_SUCCESS) THROW; + + if (exists == 0) { + imap_delete_all_cached_messages(item); + return NULL; + } + + /* invalidate current cache if UIDVALIDITY has been changed */ + if (item->mtime != uid_validity) { + debug_print("imap_get_msg_list: " + "UIDVALIDITY has been changed.\n"); + use_cache = FALSE; + } + + if (use_cache) { + GArray *uids; + GHashTable *msg_table; + GHashTable *flags_table; + guint32 cache_last; + guint32 begin = 0; + GSList *cur, *next = NULL; + MsgInfo *msginfo; + IMAPFlags imap_flags; + + /* get cache data */ + mlist = procmsg_read_cache(item, FALSE); + procmsg_set_flags(mlist, item); + cache_last = procmsg_get_last_num_in_msg_list(mlist); + + /* get all UID list and flags */ + ok = imap_search_flags(session, &uids, &flags_table); + if (ok != IMAP_SUCCESS) { + if (ok == IMAP_SOCKET || ok == IMAP_IOERR) THROW; + ok = imap_fetch_flags(session, &uids, &flags_table); + if (ok != IMAP_SUCCESS) THROW; + } + + if (uids->len > 0) { + first_uid = g_array_index(uids, guint32, 0); + last_uid = g_array_index(uids, guint32, uids->len - 1); + } else { + g_array_free(uids, TRUE); + g_hash_table_destroy(flags_table); + THROW; + } + + /* sync message flags with server */ + for (cur = mlist; cur != NULL; cur = next) { + msginfo = (MsgInfo *)cur->data; + next = cur->next; + imap_flags = GPOINTER_TO_INT(g_hash_table_lookup + (flags_table, + GUINT_TO_POINTER(msginfo->msgnum))); + + if (imap_flags == 0) { + debug_print("imap_get_msg_list: " + "message %u has been deleted.\n", + msginfo->msgnum); + imap_delete_cached_message + (item, msginfo->msgnum); + if (MSG_IS_NEW(msginfo->flags)) + item->new--; + if (MSG_IS_UNREAD(msginfo->flags)) + item->unread--; + item->total--; + mlist = g_slist_remove(mlist, msginfo); + procmsg_msginfo_free(msginfo); + continue; + } + + if (!IMAP_IS_SEEN(imap_flags)) { + if (!MSG_IS_UNREAD(msginfo->flags)) { + item->unread++; + MSG_SET_PERM_FLAGS(msginfo->flags, + MSG_UNREAD); + } + } else { + if (MSG_IS_NEW(msginfo->flags)) + item->new--; + if (MSG_IS_UNREAD(msginfo->flags)) + item->unread--; + MSG_UNSET_PERM_FLAGS(msginfo->flags, + MSG_NEW|MSG_UNREAD); + } + + if (IMAP_IS_FLAGGED(imap_flags)) { + MSG_SET_PERM_FLAGS(msginfo->flags, MSG_MARKED); + } else { + MSG_UNSET_PERM_FLAGS(msginfo->flags, + MSG_MARKED); + } + if (IMAP_IS_ANSWERED(imap_flags)) { + MSG_SET_PERM_FLAGS(msginfo->flags, MSG_REPLIED); + } else { + MSG_UNSET_PERM_FLAGS(msginfo->flags, + MSG_REPLIED); + } + } + + /* check for the first new message */ + msg_table = procmsg_msg_hash_table_create(mlist); + if (msg_table == NULL) + begin = first_uid; + else { + gint i; + + for (i = 0; i < uids->len; i++) { + guint32 uid; + + uid = g_array_index(uids, guint32, i); + if (g_hash_table_lookup + (msg_table, GUINT_TO_POINTER(uid)) + == NULL) { + debug_print("imap_get_msg_list: " + "first new UID: %u\n", uid); + begin = uid; + break; + } + } + g_hash_table_destroy(msg_table); + } + + g_array_free(uids, TRUE); + g_hash_table_destroy(flags_table); + + /* remove ununsed caches */ + if (first_uid > 0 && last_uid > 0) { + mlist = imap_delete_cached_messages + (mlist, item, 0, first_uid - 1); + mlist = imap_delete_cached_messages + (mlist, item, begin > 0 ? begin : last_uid + 1, + UINT_MAX); + } + + if (begin > 0 && begin <= last_uid) { + GSList *newlist; + newlist = imap_get_uncached_messages(session, item, + begin, last_uid, + TRUE); + mlist = g_slist_concat(mlist, newlist); + } + } else { + imap_delete_all_cached_messages(item); + mlist = imap_get_uncached_messages(session, item, 0, 0, TRUE); + last_uid = procmsg_get_last_num_in_msg_list(mlist); + } + + item->mtime = uid_validity; + + mlist = procmsg_sort_msg_list(mlist, item->sort_key, item->sort_type); + + item->last_num = last_uid; + +catch: + return mlist; +} + +#undef THROW + +static gchar *imap_fetch_msg(Folder *folder, FolderItem *item, gint uid) +{ + gchar *path, *filename; + IMAPSession *session; + gint ok; + + g_return_val_if_fail(folder != NULL, NULL); + g_return_val_if_fail(item != NULL, NULL); + + path = folder_item_get_path(item); + if (!is_dir_exist(path)) + make_dir_hier(path); + filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(uid), NULL); + g_free(path); + + if (is_file_exist(filename)) { + debug_print("message %d has been already cached.\n", uid); + return filename; + } + + session = imap_session_get(folder); + if (!session) { + g_free(filename); + return NULL; + } + + ok = imap_select(session, IMAP_FOLDER(folder), item->path, + NULL, NULL, NULL, NULL); + if (ok != IMAP_SUCCESS) { + g_warning("can't select mailbox %s\n", item->path); + g_free(filename); + return NULL; + } + + debug_print("getting message %d...\n", uid); + ok = imap_cmd_fetch(session, (guint32)uid, filename); + + if (ok != IMAP_SUCCESS) { + g_warning("can't fetch message %d\n", uid); + g_free(filename); + return NULL; + } + + return filename; +} + +static MsgInfo *imap_get_msginfo(Folder *folder, FolderItem *item, gint uid) +{ + IMAPSession *session; + GSList *list; + MsgInfo *msginfo = NULL; + + g_return_val_if_fail(folder != NULL, NULL); + g_return_val_if_fail(item != NULL, NULL); + + session = imap_session_get(folder); + g_return_val_if_fail(session != NULL, NULL); + + list = imap_get_uncached_messages(session, item, uid, uid, FALSE); + if (list) { + msginfo = (MsgInfo *)list->data; + list->data = NULL; + } + procmsg_msg_list_free(list); + + return msginfo; +} + +static gint imap_add_msg(Folder *folder, FolderItem *dest, const gchar *file, + MsgFlags *flags, gboolean remove_source) +{ + GSList file_list; + MsgFileInfo fileinfo; + + g_return_val_if_fail(file != NULL, -1); + + fileinfo.file = (gchar *)file; + fileinfo.flags = flags; + file_list.data = &fileinfo; + file_list.next = NULL; + + return imap_add_msgs(folder, dest, &file_list, remove_source, NULL); +} + +static gint imap_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list, + gboolean remove_source, gint *first) +{ + gchar *destdir; + IMAPSession *session; + gint messages, recent, unseen; + guint32 uid_next, uid_validity; + guint32 last_uid = 0; + GSList *cur; + MsgFileInfo *fileinfo; + gint ok; + + g_return_val_if_fail(folder != NULL, -1); + g_return_val_if_fail(dest != NULL, -1); + g_return_val_if_fail(file_list != NULL, -1); + + session = imap_session_get(folder); + if (!session) return -1; + + ok = imap_status(session, IMAP_FOLDER(folder), dest->path, + &messages, &recent, &uid_next, &uid_validity, &unseen); + if (ok != IMAP_SUCCESS) { + g_warning("can't append messages\n"); + return -1; + } + + destdir = imap_get_real_path(IMAP_FOLDER(folder), dest->path); + + if (!session->uidplus) + last_uid = uid_next - 1; + if (first) + *first = uid_next; + + for (cur = file_list; cur != NULL; cur = cur->next) { + IMAPFlags iflags = 0; + guint32 new_uid = 0; + + fileinfo = (MsgFileInfo *)cur->data; + + if (fileinfo->flags) { + if (MSG_IS_MARKED(*fileinfo->flags)) + iflags |= IMAP_FLAG_FLAGGED; + if (MSG_IS_REPLIED(*fileinfo->flags)) + iflags |= IMAP_FLAG_ANSWERED; + if (!MSG_IS_UNREAD(*fileinfo->flags)) + iflags |= IMAP_FLAG_SEEN; + } + + if (dest->stype == F_OUTBOX || + dest->stype == F_QUEUE || + dest->stype == F_DRAFT || + dest->stype == F_TRASH) + iflags |= IMAP_FLAG_SEEN; + + ok = imap_cmd_append(session, destdir, fileinfo->file, iflags, + &new_uid); + + if (ok != IMAP_SUCCESS) { + g_warning("can't append message %s\n", fileinfo->file); + g_free(destdir); + return -1; + } + + if (!session->uidplus) + last_uid++; + else if (last_uid < new_uid) + last_uid = new_uid; + + dest->last_num = last_uid; + dest->total++; + dest->updated = TRUE; + + if (fileinfo->flags) { + if (MSG_IS_UNREAD(*fileinfo->flags)) + dest->unread++; + } else + dest->unread++; + } + + g_free(destdir); + + if (remove_source) { + for (cur = file_list; cur != NULL; cur = cur->next) { + fileinfo = (MsgFileInfo *)cur->data; + if (unlink(fileinfo->file) < 0) + FILE_OP_ERROR(fileinfo->file, "unlink"); + } + } + + return last_uid; +} + +static gint imap_do_copy_msgs(Folder *folder, FolderItem *dest, GSList *msglist, + gboolean remove_source) +{ + FolderItem *src; + gchar *destdir; + GSList *seq_list, *cur; + MsgInfo *msginfo; + IMAPSession *session; + gint ok = IMAP_SUCCESS; + + g_return_val_if_fail(folder != NULL, -1); + g_return_val_if_fail(dest != NULL, -1); + g_return_val_if_fail(msglist != NULL, -1); + + session = imap_session_get(folder); + if (!session) return -1; + + msginfo = (MsgInfo *)msglist->data; + + src = msginfo->folder; + if (src == dest) { + g_warning("the src folder is identical to the dest.\n"); + return -1; + } + + ok = imap_select(session, IMAP_FOLDER(folder), src->path, + NULL, NULL, NULL, NULL); + if (ok != IMAP_SUCCESS) + return ok; + + destdir = imap_get_real_path(IMAP_FOLDER(folder), dest->path); + + seq_list = imap_get_seq_set_from_msglist(msglist); + + for (cur = seq_list; cur != NULL; cur = cur->next) { + gchar *seq_set = (gchar *)cur->data; + + if (remove_source) + debug_print("Moving message %s%c[%s] to %s ...\n", + src->path, G_DIR_SEPARATOR, + seq_set, destdir); + else + debug_print("Copying message %s%c[%s] to %s ...\n", + src->path, G_DIR_SEPARATOR, + seq_set, destdir); + + ok = imap_cmd_copy(session, seq_set, destdir); + if (ok != IMAP_SUCCESS) { + imap_seq_set_free(seq_list); + return -1; + } + } + + dest->updated = TRUE; + + if (remove_source) { + imap_remove_msgs_by_seq_set(folder, src, seq_list); + if (ok != IMAP_SUCCESS) { + imap_seq_set_free(seq_list); + return ok; + } + } + + imap_seq_set_free(seq_list); + + for (cur = msglist; cur != NULL; cur = cur->next) { + msginfo = (MsgInfo *)cur->data; + dest->total++; + if (MSG_IS_NEW(msginfo->flags)) + dest->new++; + if (MSG_IS_UNREAD(msginfo->flags)) + dest->unread++; + + if (remove_source) { + src->total--; + if (MSG_IS_NEW(msginfo->flags)) + src->new--; + if (MSG_IS_UNREAD(msginfo->flags)) + src->unread--; + MSG_SET_TMP_FLAGS(msginfo->flags, MSG_INVALID); + } + } + + g_free(destdir); + + if (ok == IMAP_SUCCESS) + return 0; + else + return -1; +} + +static gint imap_move_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo) +{ + GSList msglist; + + g_return_val_if_fail(msginfo != NULL, -1); + + msglist.data = msginfo; + msglist.next = NULL; + + return imap_move_msgs(folder, dest, &msglist); +} + +static gint imap_move_msgs(Folder *folder, FolderItem *dest, GSList *msglist) +{ + MsgInfo *msginfo; + GSList *file_list; + gint ret = 0; + + g_return_val_if_fail(folder != NULL, -1); + g_return_val_if_fail(dest != NULL, -1); + g_return_val_if_fail(msglist != NULL, -1); + + msginfo = (MsgInfo *)msglist->data; + g_return_val_if_fail(msginfo->folder != NULL, -1); + + if (folder == msginfo->folder->folder) + return imap_do_copy_msgs(folder, dest, msglist, TRUE); + + file_list = procmsg_get_message_file_list(msglist); + g_return_val_if_fail(file_list != NULL, -1); + + ret = imap_add_msgs(folder, dest, file_list, FALSE, NULL); + + procmsg_message_file_list_free(file_list); + + if (ret != -1) + ret = folder_item_remove_msgs(msginfo->folder, msglist); + + return ret; +} + +static gint imap_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo) +{ + GSList msglist; + + g_return_val_if_fail(msginfo != NULL, -1); + + msglist.data = msginfo; + msglist.next = NULL; + + return imap_copy_msgs(folder, dest, &msglist); +} + +static gint imap_copy_msgs(Folder *folder, FolderItem *dest, GSList *msglist) +{ + MsgInfo *msginfo; + GSList *file_list; + gint ret; + + g_return_val_if_fail(folder != NULL, -1); + g_return_val_if_fail(dest != NULL, -1); + g_return_val_if_fail(msglist != NULL, -1); + + msginfo = (MsgInfo *)msglist->data; + g_return_val_if_fail(msginfo->folder != NULL, -1); + + if (folder == msginfo->folder->folder) + return imap_do_copy_msgs(folder, dest, msglist, FALSE); + + file_list = procmsg_get_message_file_list(msglist); + g_return_val_if_fail(file_list != NULL, -1); + + ret = imap_add_msgs(folder, dest, file_list, FALSE, NULL); + + procmsg_message_file_list_free(file_list); + + return ret; +} + +static gint imap_remove_msgs_by_seq_set(Folder *folder, FolderItem *item, + GSList *seq_list) +{ + gint ok; + IMAPSession *session; + GSList *cur; + + g_return_val_if_fail(seq_list != NULL, -1); + + session = imap_session_get(folder); + if (!session) return -1; + + for (cur = seq_list; cur != NULL; cur = cur->next) { + gchar *seq_set = (gchar *)cur->data; + + ok = imap_set_message_flags(session, seq_set, IMAP_FLAG_DELETED, + TRUE); + if (ok != IMAP_SUCCESS) { + log_warning(_("can't set deleted flags: %s\n"), + seq_set); + return ok; + } + } + + ok = imap_cmd_expunge(session); + if (ok != IMAP_SUCCESS) + log_warning(_("can't expunge\n")); + + item->updated = TRUE; + + return ok; +} + +static gint imap_remove_msg(Folder *folder, FolderItem *item, MsgInfo *msginfo) +{ + GSList msglist; + + g_return_val_if_fail(msginfo != NULL, -1); + + msglist.data = msginfo; + msglist.next = NULL; + + return imap_remove_msgs(folder, item, &msglist); +} + +static gint imap_remove_msgs(Folder *folder, FolderItem *item, GSList *msglist) +{ + gint ok; + IMAPSession *session; + GSList *seq_list, *cur; + gchar *dir; + gboolean dir_exist; + + g_return_val_if_fail(folder != NULL, -1); + g_return_val_if_fail(FOLDER_TYPE(folder) == F_IMAP, -1); + g_return_val_if_fail(item != NULL, -1); + g_return_val_if_fail(msglist != NULL, -1); + + session = imap_session_get(folder); + if (!session) return -1; + + ok = imap_select(session, IMAP_FOLDER(folder), item->path, + NULL, NULL, NULL, NULL); + if (ok != IMAP_SUCCESS) + return ok; + + seq_list = imap_get_seq_set_from_msglist(msglist); + ok = imap_remove_msgs_by_seq_set(folder, item, seq_list); + imap_seq_set_free(seq_list); + if (ok != IMAP_SUCCESS) + return ok; + + dir = folder_item_get_path(item); + dir_exist = is_dir_exist(dir); + for (cur = msglist; cur != NULL; cur = cur->next) { + MsgInfo *msginfo = (MsgInfo *)cur->data; + guint32 uid = msginfo->msgnum; + + if (dir_exist) + remove_numbered_files(dir, uid, uid); + item->total--; + if (MSG_IS_NEW(msginfo->flags)) + item->new--; + if (MSG_IS_UNREAD(msginfo->flags)) + item->unread--; + MSG_SET_TMP_FLAGS(msginfo->flags, MSG_INVALID); + } + g_free(dir); + + return IMAP_SUCCESS; +} + +static gint imap_remove_all_msg(Folder *folder, FolderItem *item) +{ + gint ok; + IMAPSession *session; + gchar *dir; + + g_return_val_if_fail(folder != NULL, -1); + g_return_val_if_fail(item != NULL, -1); + + session = imap_session_get(folder); + if (!session) return -1; + + ok = imap_select(session, IMAP_FOLDER(folder), item->path, + NULL, NULL, NULL, NULL); + if (ok != IMAP_SUCCESS) + return ok; + + imap_cmd_gen_send(session, "STORE 1:* +FLAGS.SILENT (\\Deleted)"); + ok = imap_cmd_ok(session, NULL); + if (ok != IMAP_SUCCESS) { + log_warning(_("can't set deleted flags: 1:*\n")); + return ok; + } + + ok = imap_cmd_expunge(session); + if (ok != IMAP_SUCCESS) { + log_warning(_("can't expunge\n")); + return ok; + } + + item->new = item->unread = item->total = 0; + item->updated = TRUE; + + dir = folder_item_get_path(item); + if (is_dir_exist(dir)) + remove_all_numbered_files(dir); + g_free(dir); + + return IMAP_SUCCESS; +} + +static gboolean imap_is_msg_changed(Folder *folder, FolderItem *item, + MsgInfo *msginfo) +{ + /* TODO: properly implement this method */ + return FALSE; +} + +static gint imap_close(Folder *folder, FolderItem *item) +{ + gint ok; + IMAPSession *session; + + g_return_val_if_fail(folder != NULL, -1); + + session = imap_session_get(folder); + if (!session) return -1; + + if (session->mbox) { + if (strcmp2(session->mbox, item->path) != 0) return -1; + + ok = imap_cmd_close(session); + if (ok != IMAP_SUCCESS) + log_warning(_("can't close folder\n")); + + g_free(session->mbox); + session->mbox = NULL; + + return ok; + } else + return 0; +} + +static gint imap_scan_folder(Folder *folder, FolderItem *item) +{ + IMAPSession *session; + gint messages, recent, unseen; + guint32 uid_next, uid_validity; + gint ok; + + g_return_val_if_fail(folder != NULL, -1); + g_return_val_if_fail(item != NULL, -1); + + session = imap_session_get(folder); + if (!session) return -1; + + ok = imap_status(session, IMAP_FOLDER(folder), item->path, + &messages, &recent, &uid_next, &uid_validity, &unseen); + if (ok != IMAP_SUCCESS) return -1; + + item->new = unseen > 0 ? recent : 0; + item->unread = unseen; + item->total = messages; + item->last_num = (messages > 0 && uid_next > 0) ? uid_next - 1 : 0; + /* item->mtime = uid_validity; */ + item->updated = TRUE; + + return 0; +} + +static gint imap_scan_tree(Folder *folder) +{ + FolderItem *item = NULL; + IMAPSession *session; + gchar *root_folder = NULL; + + g_return_val_if_fail(folder != NULL, -1); + g_return_val_if_fail(folder->account != NULL, -1); + + session = imap_session_get(folder); + if (!session) { + if (!folder->node) { + folder_tree_destroy(folder); + item = folder_item_new(folder->name, NULL); + item->folder = folder; + folder->node = item->node = g_node_new(item); + } + return -1; + } + + if (folder->account->imap_dir && *folder->account->imap_dir) { + gchar *real_path; + GPtrArray *argbuf; + gint ok; + + Xstrdup_a(root_folder, folder->account->imap_dir, return -1); + extract_quote(root_folder, '"'); + subst_char(root_folder, + imap_get_path_separator(IMAP_FOLDER(folder), + root_folder), + '/'); + strtailchomp(root_folder, '/'); + real_path = imap_get_real_path + (IMAP_FOLDER(folder), root_folder); + debug_print("IMAP root directory: %s\n", real_path); + + /* check if root directory exist */ + argbuf = g_ptr_array_new(); + ok = imap_cmd_list(session, NULL, real_path, argbuf); + if (ok != IMAP_SUCCESS || + search_array_str(argbuf, "LIST ") == NULL) { + log_warning(_("root folder %s not exist\n"), real_path); + g_ptr_array_free(argbuf, TRUE); + g_free(real_path); + return -1; + } + g_ptr_array_free(argbuf, TRUE); + g_free(real_path); + } + + if (folder->node) + item = FOLDER_ITEM(folder->node->data); + if (!item || ((item->path || root_folder) && + strcmp2(item->path, root_folder) != 0)) { + folder_tree_destroy(folder); + item = folder_item_new(folder->name, root_folder); + item->folder = folder; + folder->node = item->node = g_node_new(item); + } + + imap_scan_tree_recursive(session, FOLDER_ITEM(folder->node->data)); + imap_create_missing_folders(folder); + + return 0; +} + +static gint imap_scan_tree_recursive(IMAPSession *session, FolderItem *item) +{ + Folder *folder; + IMAPFolder *imapfolder; + FolderItem *new_item; + GSList *item_list, *cur; + GNode *node; + gchar *real_path; + gchar *wildcard_path; + gchar separator; + gchar wildcard[3]; + + g_return_val_if_fail(item != NULL, -1); + g_return_val_if_fail(item->folder != NULL, -1); + g_return_val_if_fail(item->no_sub == FALSE, -1); + + folder = item->folder; + imapfolder = IMAP_FOLDER(folder); + + separator = imap_get_path_separator(imapfolder, item->path); + + if (folder->ui_func) + folder->ui_func(folder, item, folder->ui_func_data); + + if (item->path) { + wildcard[0] = separator; + wildcard[1] = '%'; + wildcard[2] = '\0'; + real_path = imap_get_real_path(imapfolder, item->path); + } else { + wildcard[0] = '%'; + wildcard[1] = '\0'; + real_path = g_strdup(""); + } + + Xstrcat_a(wildcard_path, real_path, wildcard, + {g_free(real_path); return IMAP_ERROR;}); + QUOTE_IF_REQUIRED(wildcard_path, wildcard_path); + + imap_cmd_gen_send(session, "LIST \"\" %s", wildcard_path); + + strtailchomp(real_path, separator); + item_list = imap_parse_list(session, real_path, NULL); + g_free(real_path); + + node = item->node->children; + while (node != NULL) { + FolderItem *old_item = FOLDER_ITEM(node->data); + GNode *next = node->next; + + new_item = NULL; + + for (cur = item_list; cur != NULL; cur = cur->next) { + FolderItem *cur_item = FOLDER_ITEM(cur->data); + if (!strcmp2(old_item->path, cur_item->path)) { + new_item = cur_item; + break; + } + } + if (!new_item) { + debug_print("folder '%s' not found. removing...\n", + old_item->path); + folder_item_remove(old_item); + } else { + old_item->no_sub = new_item->no_sub; + old_item->no_select = new_item->no_select; + if (old_item->no_select == TRUE) + old_item->new = old_item->unread = + old_item->total = 0; + if (old_item->no_sub == TRUE && node->children) { + debug_print("folder '%s' doesn't have " + "subfolders. removing...\n", + old_item->path); + folder_item_remove_children(old_item); + } + } + + node = next; + } + + for (cur = item_list; cur != NULL; cur = cur->next) { + FolderItem *cur_item = FOLDER_ITEM(cur->data); + new_item = NULL; + for (node = item->node->children; node != NULL; + node = node->next) { + if (!strcmp2(FOLDER_ITEM(node->data)->path, + cur_item->path)) { + new_item = FOLDER_ITEM(node->data); + folder_item_destroy(cur_item); + cur_item = NULL; + break; + } + } + if (!new_item) { + new_item = cur_item; + debug_print("new folder '%s' found.\n", new_item->path); + folder_item_append(item, new_item); + } + + if (!strcmp(new_item->path, "INBOX")) { + new_item->stype = F_INBOX; + folder->inbox = new_item; + } else if (!item->parent || item->stype == F_INBOX) { + const gchar *base; + + base = g_basename(new_item->path); + + if (!folder->outbox && !strcasecmp(base, "Sent")) { + new_item->stype = F_OUTBOX; + folder->outbox = new_item; + } else if (!folder->draft && !strcasecmp(base, "Drafts")) { + new_item->stype = F_DRAFT; + folder->draft = new_item; + } else if (!folder->queue && !strcasecmp(base, "Queue")) { + new_item->stype = F_QUEUE; + folder->queue = new_item; + } else if (!folder->trash && !strcasecmp(base, "Trash")) { + new_item->stype = F_TRASH; + folder->trash = new_item; + } + } + + if (new_item->no_select == FALSE) + imap_scan_folder(folder, new_item); + if (new_item->no_sub == FALSE) + imap_scan_tree_recursive(session, new_item); + } + + g_slist_free(item_list); + + return IMAP_SUCCESS; +} + +static GSList *imap_parse_list(IMAPSession *session, const gchar *real_path, + gchar *separator) +{ + gchar buf[IMAPBUFSIZE]; + gchar flags[256]; + gchar separator_str[16]; + gchar *p; + const gchar *name; + gchar *loc_name, *loc_path; + GSList *item_list = NULL; + GString *str; + FolderItem *new_item; + + debug_print("getting list of %s ...\n", + *real_path ? real_path : "\"\""); + + str = g_string_new(NULL); + + for (;;) { + if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) <= 0) { + log_warning(_("error occurred while getting LIST.\n")); + break; + } + strretchomp(buf); + if (buf[0] != '*' || buf[1] != ' ') { + log_print("IMAP4< %s\n", buf); + if (sscanf(buf, "%*d %16s", buf) < 1 || + strcmp(buf, "OK") != 0) + log_warning(_("error occurred while getting LIST.\n")); + + break; + } + debug_print("IMAP4< %s\n", buf); + + g_string_assign(str, buf); + p = str->str + 2; + if (strncmp(p, "LIST ", 5) != 0) continue; + p += 5; + + if (*p != '(') continue; + p++; + p = strchr_cpy(p, ')', flags, sizeof(flags)); + if (!p) continue; + while (*p == ' ') p++; + + p = strchr_cpy(p, ' ', separator_str, sizeof(separator_str)); + if (!p) continue; + extract_quote(separator_str, '"'); + if (!strcmp(separator_str, "NIL")) + separator_str[0] = '\0'; + if (separator) + *separator = separator_str[0]; + + buf[0] = '\0'; + while (*p == ' ') p++; + if (*p == '{' || *p == '"') + p = imap_parse_atom(session, p, buf, sizeof(buf), str); + else + strncpy2(buf, p, sizeof(buf)); + strtailchomp(buf, separator_str[0]); + if (buf[0] == '\0') continue; + if (!strcmp(buf, real_path)) continue; + + if (separator_str[0] != '\0') + subst_char(buf, separator_str[0], '/'); + name = g_basename(buf); + if (name[0] == '.') continue; + + loc_name = imap_modified_utf7_to_locale(name); + loc_path = imap_modified_utf7_to_locale(buf); + new_item = folder_item_new(loc_name, loc_path); + if (strcasestr(flags, "\\Noinferiors") != NULL) + new_item->no_sub = TRUE; + if (strcmp(buf, "INBOX") != 0 && + strcasestr(flags, "\\Noselect") != NULL) + new_item->no_select = TRUE; + + item_list = g_slist_append(item_list, new_item); + + debug_print("folder '%s' found.\n", loc_path); + g_free(loc_path); + g_free(loc_name); + } + + g_string_free(str, TRUE); + + return item_list; +} + +static gint imap_create_tree(Folder *folder) +{ + g_return_val_if_fail(folder != NULL, -1); + g_return_val_if_fail(folder->node != NULL, -1); + g_return_val_if_fail(folder->node->data != NULL, -1); + g_return_val_if_fail(folder->account != NULL, -1); + + imap_scan_tree(folder); + imap_create_missing_folders(folder); + + return 0; +} + +static void imap_create_missing_folders(Folder *folder) +{ + g_return_if_fail(folder != NULL); + + if (!folder->inbox) + folder->inbox = imap_create_special_folder + (folder, F_INBOX, "INBOX"); +#if 0 + if (!folder->outbox) + folder->outbox = imap_create_special_folder + (folder, F_OUTBOX, "Sent"); + if (!folder->draft) + folder->draft = imap_create_special_folder + (folder, F_DRAFT, "Drafts"); + if (!folder->queue) + folder->queue = imap_create_special_folder + (folder, F_QUEUE, "Queue"); +#endif + if (!folder->trash) + folder->trash = imap_create_special_folder + (folder, F_TRASH, "Trash"); +} + +static FolderItem *imap_create_special_folder(Folder *folder, + SpecialFolderItemType stype, + const gchar *name) +{ + FolderItem *item; + FolderItem *new_item; + + g_return_val_if_fail(folder != NULL, NULL); + g_return_val_if_fail(folder->node != NULL, NULL); + g_return_val_if_fail(folder->node->data != NULL, NULL); + g_return_val_if_fail(folder->account != NULL, NULL); + g_return_val_if_fail(name != NULL, NULL); + + item = FOLDER_ITEM(folder->node->data); + new_item = imap_create_folder(folder, item, name); + + if (!new_item) { + g_warning(_("Can't create '%s'\n"), name); + if (!folder->inbox) return NULL; + + new_item = imap_create_folder(folder, folder->inbox, name); + if (!new_item) + g_warning(_("Can't create '%s' under INBOX\n"), name); + else + new_item->stype = stype; + } else + new_item->stype = stype; + + return new_item; +} + +static FolderItem *imap_create_folder(Folder *folder, FolderItem *parent, + const gchar *name) +{ + gchar *dirpath, *imap_path; + IMAPSession *session; + FolderItem *new_item; + gchar separator; + gchar *new_name; + const gchar *p; + gint ok; + + g_return_val_if_fail(folder != NULL, NULL); + g_return_val_if_fail(folder->account != NULL, NULL); + g_return_val_if_fail(parent != NULL, NULL); + g_return_val_if_fail(name != NULL, NULL); + + session = imap_session_get(folder); + if (!session) return NULL; + + if (!parent->parent && strcmp(name, "INBOX") == 0) + dirpath = g_strdup(name); + else if (parent->path) + dirpath = g_strconcat(parent->path, "/", name, NULL); + else if ((p = strchr(name, '/')) != NULL && *(p + 1) != '\0') + dirpath = g_strdup(name); + else if (folder->account->imap_dir && *folder->account->imap_dir) { + gchar *imap_dir; + + Xstrdup_a(imap_dir, folder->account->imap_dir, return NULL); + strtailchomp(imap_dir, '/'); + dirpath = g_strconcat(imap_dir, "/", name, NULL); + } else + dirpath = g_strdup(name); + + /* keep trailing directory separator to create a folder that contains + sub folder */ + imap_path = imap_locale_to_modified_utf7(dirpath); + strtailchomp(dirpath, '/'); + Xstrdup_a(new_name, name, {g_free(dirpath); return NULL;}); + strtailchomp(new_name, '/'); + separator = imap_get_path_separator(IMAP_FOLDER(folder), imap_path); + imap_path_separator_subst(imap_path, separator); + subst_char(new_name, '/', separator); + + if (strcmp(name, "INBOX") != 0) { + GPtrArray *argbuf; + gint i; + gboolean exist = FALSE; + + argbuf = g_ptr_array_new(); + ok = imap_cmd_list(session, NULL, imap_path, argbuf); + if (ok != IMAP_SUCCESS) { + log_warning(_("can't create mailbox: LIST failed\n")); + g_free(imap_path); + g_free(dirpath); + g_ptr_array_free(argbuf, TRUE); + return NULL; + } + + for (i = 0; i < argbuf->len; i++) { + gchar *str; + str = g_ptr_array_index(argbuf, i); + if (!strncmp(str, "LIST ", 5)) { + exist = TRUE; + break; + } + } + g_ptr_array_free(argbuf, TRUE); + + if (!exist) { + ok = imap_cmd_create(session, imap_path); + if (ok != IMAP_SUCCESS) { + log_warning(_("can't create mailbox\n")); + g_free(imap_path); + g_free(dirpath); + return NULL; + } + } + } + + new_item = folder_item_new(new_name, dirpath); + folder_item_append(parent, new_item); + g_free(imap_path); + g_free(dirpath); + + dirpath = folder_item_get_path(new_item); + if (!is_dir_exist(dirpath)) + make_dir_hier(dirpath); + g_free(dirpath); + + return new_item; +} + +static gint imap_rename_folder(Folder *folder, FolderItem *item, + const gchar *name) +{ + gchar *dirpath; + gchar *newpath; + gchar *real_oldpath; + gchar *real_newpath; + gchar *paths[2]; + gchar *old_cache_dir; + gchar *new_cache_dir; + IMAPSession *session; + gchar separator; + gint ok; + gint exists, recent, unseen; + guint32 uid_validity; + + g_return_val_if_fail(folder != NULL, -1); + g_return_val_if_fail(item != NULL, -1); + g_return_val_if_fail(item->path != NULL, -1); + g_return_val_if_fail(name != NULL, -1); + + session = imap_session_get(folder); + if (!session) return -1; + + real_oldpath = imap_get_real_path(IMAP_FOLDER(folder), item->path); + + g_free(session->mbox); + session->mbox = NULL; + ok = imap_cmd_examine(session, "INBOX", + &exists, &recent, &unseen, &uid_validity); + if (ok != IMAP_SUCCESS) { + g_free(real_oldpath); + return -1; + } + + separator = imap_get_path_separator(IMAP_FOLDER(folder), item->path); + if (strchr(item->path, G_DIR_SEPARATOR)) { + dirpath = g_dirname(item->path); + newpath = g_strconcat(dirpath, G_DIR_SEPARATOR_S, name, NULL); + g_free(dirpath); + } else + newpath = g_strdup(name); + + real_newpath = imap_locale_to_modified_utf7(newpath); + imap_path_separator_subst(real_newpath, separator); + + ok = imap_cmd_rename(session, real_oldpath, real_newpath); + if (ok != IMAP_SUCCESS) { + log_warning(_("can't rename mailbox: %s to %s\n"), + real_oldpath, real_newpath); + g_free(real_oldpath); + g_free(newpath); + g_free(real_newpath); + return -1; + } + + g_free(item->name); + item->name = g_strdup(name); + + old_cache_dir = folder_item_get_path(item); + + paths[0] = g_strdup(item->path); + paths[1] = newpath; + g_node_traverse(item->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1, + imap_rename_folder_func, paths); + + if (is_dir_exist(old_cache_dir)) { + new_cache_dir = folder_item_get_path(item); + if (rename(old_cache_dir, new_cache_dir) < 0) { + FILE_OP_ERROR(old_cache_dir, "rename"); + } + g_free(new_cache_dir); + } + + g_free(old_cache_dir); + g_free(paths[0]); + g_free(newpath); + g_free(real_oldpath); + g_free(real_newpath); + + return 0; +} + +static gint imap_remove_folder(Folder *folder, FolderItem *item) +{ + gint ok; + IMAPSession *session; + gchar *path; + gchar *cache_dir; + gint exists, recent, unseen; + guint32 uid_validity; + + g_return_val_if_fail(folder != NULL, -1); + g_return_val_if_fail(item != NULL, -1); + g_return_val_if_fail(item->path != NULL, -1); + + session = imap_session_get(folder); + if (!session) return -1; + + path = imap_get_real_path(IMAP_FOLDER(folder), item->path); + + ok = imap_cmd_examine(session, "INBOX", + &exists, &recent, &unseen, &uid_validity); + if (ok != IMAP_SUCCESS) { + g_free(path); + return -1; + } + + ok = imap_cmd_delete(session, path); + if (ok != IMAP_SUCCESS) { + log_warning(_("can't delete mailbox\n")); + g_free(path); + return -1; + } + + g_free(path); + cache_dir = folder_item_get_path(item); + if (is_dir_exist(cache_dir) && remove_dir_recursive(cache_dir) < 0) + g_warning("can't remove directory '%s'\n", cache_dir); + g_free(cache_dir); + folder_item_remove(item); + + return 0; +} + +static GSList *imap_get_uncached_messages(IMAPSession *session, + FolderItem *item, + guint32 first_uid, guint32 last_uid, + gboolean update_count) +{ + gchar *tmp; + GSList *newlist = NULL; + GSList *llast = NULL; + GString *str; + MsgInfo *msginfo; + gchar seq_set[22]; + + g_return_val_if_fail(session != NULL, NULL); + g_return_val_if_fail(item != NULL, NULL); + g_return_val_if_fail(item->folder != NULL, NULL); + g_return_val_if_fail(FOLDER_TYPE(item->folder) == F_IMAP, NULL); + g_return_val_if_fail(first_uid <= last_uid, NULL); + + if (first_uid == 0 && last_uid == 0) + strcpy(seq_set, "1:*"); + else + g_snprintf(seq_set, sizeof(seq_set), "%u:%u", + first_uid, last_uid); + if (imap_cmd_envelope(session, seq_set) != IMAP_SUCCESS) { + log_warning(_("can't get envelope\n")); + return NULL; + } + + str = g_string_new(NULL); + + for (;;) { + if ((tmp = sock_getline(SESSION(session)->sock)) == NULL) { + log_warning(_("error occurred while getting envelope.\n")); + g_string_free(str, TRUE); + return newlist; + } + strretchomp(tmp); + if (tmp[0] != '*' || tmp[1] != ' ') { + log_print("IMAP4< %s\n", tmp); + g_free(tmp); + break; + } + if (strstr(tmp, "FETCH") == NULL) { + log_print("IMAP4< %s\n", tmp); + g_free(tmp); + continue; + } + log_print("IMAP4< %s\n", tmp); + g_string_assign(str, tmp); + g_free(tmp); + + msginfo = imap_parse_envelope(session, item, str); + if (!msginfo) { + log_warning(_("can't parse envelope: %s\n"), str->str); + continue; + } + if (update_count) { + if (MSG_IS_NEW(msginfo->flags)) + item->new++; + if (MSG_IS_UNREAD(msginfo->flags)) + item->unread++; + } + if (item->stype == F_QUEUE) { + MSG_SET_TMP_FLAGS(msginfo->flags, MSG_QUEUED); + } else if (item->stype == F_DRAFT) { + MSG_SET_TMP_FLAGS(msginfo->flags, MSG_DRAFT); + } + + msginfo->folder = item; + + if (!newlist) + llast = newlist = g_slist_append(newlist, msginfo); + else { + llast = g_slist_append(llast, msginfo); + llast = llast->next; + } + + if (update_count) + item->total++; + } + + g_string_free(str, TRUE); + + session_set_access_time(SESSION(session)); + + return newlist; +} + +static void imap_delete_cached_message(FolderItem *item, guint32 uid) +{ + gchar *dir; + gchar *file; + + g_return_if_fail(item != NULL); + g_return_if_fail(item->folder != NULL); + g_return_if_fail(FOLDER_TYPE(item->folder) == F_IMAP); + + dir = folder_item_get_path(item); + file = g_strdup_printf("%s%c%u", dir, G_DIR_SEPARATOR, uid); + + debug_print("Deleting cached message: %s\n", file); + + unlink(file); + + g_free(file); + g_free(dir); +} + +static GSList *imap_delete_cached_messages(GSList *mlist, FolderItem *item, + guint32 first_uid, guint32 last_uid) +{ + GSList *cur, *next; + MsgInfo *msginfo; + gchar *dir; + + g_return_val_if_fail(item != NULL, mlist); + g_return_val_if_fail(item->folder != NULL, mlist); + g_return_val_if_fail(FOLDER_TYPE(item->folder) == F_IMAP, mlist); + + if (first_uid == 0 && last_uid == 0) + return mlist; + + debug_print("Deleting cached messages %u - %u ... ", + first_uid, last_uid); + + dir = folder_item_get_path(item); + if (is_dir_exist(dir)) + remove_numbered_files(dir, first_uid, last_uid); + g_free(dir); + + for (cur = mlist; cur != NULL; ) { + next = cur->next; + + msginfo = (MsgInfo *)cur->data; + if (msginfo != NULL && first_uid <= msginfo->msgnum && + msginfo->msgnum <= last_uid) { + procmsg_msginfo_free(msginfo); + mlist = g_slist_remove(mlist, msginfo); + } + + cur = next; + } + + debug_print("done.\n"); + + return mlist; +} + +static void imap_delete_all_cached_messages(FolderItem *item) +{ + gchar *dir; + + g_return_if_fail(item != NULL); + g_return_if_fail(item->folder != NULL); + g_return_if_fail(FOLDER_TYPE(item->folder) == F_IMAP); + + debug_print("Deleting all cached messages... "); + + dir = folder_item_get_path(item); + if (is_dir_exist(dir)) + remove_all_numbered_files(dir); + g_free(dir); + + debug_print("done.\n"); +} + +#if USE_SSL +static SockInfo *imap_open(const gchar *server, gushort port, + SSLType ssl_type) +#else +static SockInfo *imap_open(const gchar *server, gushort port) +#endif +{ + SockInfo *sock; + + if ((sock = sock_connect(server, port)) == NULL) { + log_warning(_("Can't connect to IMAP4 server: %s:%d\n"), + server, port); + return NULL; + } + +#if USE_SSL + if (ssl_type == SSL_TUNNEL && !ssl_init_socket(sock)) { + log_warning(_("Can't establish IMAP4 session with: %s:%d\n"), + server, port); + sock_close(sock); + return NULL; + } +#endif + + return sock; +} + +static GList *imap_parse_namespace_str(gchar *str) +{ + guchar *p = str; + gchar *name; + gchar *separator; + IMAPNameSpace *namespace; + GList *ns_list = NULL; + + while (*p != '\0') { + /* parse ("#foo" "/") */ + + while (*p && *p != '(') p++; + if (*p == '\0') break; + p++; + + while (*p && *p != '"') p++; + if (*p == '\0') break; + p++; + name = p; + + while (*p && *p != '"') p++; + if (*p == '\0') break; + *p = '\0'; + p++; + + while (*p && isspace(*p)) p++; + if (*p == '\0') break; + if (strncmp(p, "NIL", 3) == 0) + separator = NULL; + else if (*p == '"') { + p++; + separator = p; + while (*p && *p != '"') p++; + if (*p == '\0') break; + *p = '\0'; + p++; + } else break; + + while (*p && *p != ')') p++; + if (*p == '\0') break; + p++; + + namespace = g_new(IMAPNameSpace, 1); + namespace->name = g_strdup(name); + namespace->separator = separator ? separator[0] : '\0'; + ns_list = g_list_append(ns_list, namespace); + } + + return ns_list; +} + +static void imap_parse_namespace(IMAPSession *session, IMAPFolder *folder) +{ + gchar *ns_str; + gchar **str_array; + + g_return_if_fail(session != NULL); + g_return_if_fail(folder != NULL); + + if (folder->ns_personal != NULL || + folder->ns_others != NULL || + folder->ns_shared != NULL) + return; + + if (imap_cmd_namespace(session, &ns_str) != IMAP_SUCCESS) { + log_warning(_("can't get namespace\n")); + imap_get_namespace_by_list(session, folder); + return; + } + + str_array = strsplit_parenthesis(ns_str, '(', ')', 3); + if (str_array[0]) + folder->ns_personal = imap_parse_namespace_str(str_array[0]); + if (str_array[0] && str_array[1]) + folder->ns_others = imap_parse_namespace_str(str_array[1]); + if (str_array[0] && str_array[1] && str_array[2]) + folder->ns_shared = imap_parse_namespace_str(str_array[2]); + g_strfreev(str_array); + g_free(ns_str); +} + +static void imap_get_namespace_by_list(IMAPSession *session, IMAPFolder *folder) +{ + GSList *item_list, *cur; + gchar separator = '\0'; + IMAPNameSpace *namespace; + + g_return_if_fail(session != NULL); + g_return_if_fail(folder != NULL); + + if (folder->ns_personal != NULL || + folder->ns_others != NULL || + folder->ns_shared != NULL) + return; + + imap_cmd_gen_send(session, "LIST \"\" \"\""); + item_list = imap_parse_list(session, "", &separator); + for (cur = item_list; cur != NULL; cur = cur->next) + folder_item_destroy(FOLDER_ITEM(cur->data)); + g_slist_free(item_list); + + namespace = g_new(IMAPNameSpace, 1); + namespace->name = g_strdup(""); + namespace->separator = separator; + folder->ns_personal = g_list_append(NULL, namespace); +} + +static IMAPNameSpace *imap_find_namespace_from_list(GList *ns_list, + const gchar *path) +{ + IMAPNameSpace *namespace = NULL; + gchar *tmp_path, *name; + + if (!path) path = ""; + + for (; ns_list != NULL; ns_list = ns_list->next) { + IMAPNameSpace *tmp_ns = ns_list->data; + + Xstrcat_a(tmp_path, path, "/", return namespace); + Xstrdup_a(name, tmp_ns->name, return namespace); + if (tmp_ns->separator && tmp_ns->separator != '/') { + subst_char(tmp_path, tmp_ns->separator, '/'); + subst_char(name, tmp_ns->separator, '/'); + } + if (strncmp(tmp_path, name, strlen(name)) == 0) + namespace = tmp_ns; + } + + return namespace; +} + +static IMAPNameSpace *imap_find_namespace(IMAPFolder *folder, + const gchar *path) +{ + IMAPNameSpace *namespace; + + g_return_val_if_fail(folder != NULL, NULL); + + namespace = imap_find_namespace_from_list(folder->ns_personal, path); + if (namespace) return namespace; + namespace = imap_find_namespace_from_list(folder->ns_others, path); + if (namespace) return namespace; + namespace = imap_find_namespace_from_list(folder->ns_shared, path); + if (namespace) return namespace; + + return NULL; +} + +static gchar imap_get_path_separator(IMAPFolder *folder, const gchar *path) +{ + IMAPNameSpace *namespace; + gchar separator = '/'; + + namespace = imap_find_namespace(folder, path); + if (namespace && namespace->separator) + separator = namespace->separator; + + return separator; +} + +static gchar *imap_get_real_path(IMAPFolder *folder, const gchar *path) +{ + gchar *real_path; + gchar separator; + + g_return_val_if_fail(folder != NULL, NULL); + g_return_val_if_fail(path != NULL, NULL); + + real_path = imap_locale_to_modified_utf7(path); + separator = imap_get_path_separator(folder, path); + imap_path_separator_subst(real_path, separator); + + return real_path; +} + +static gchar *imap_parse_atom(IMAPSession *session, gchar *src, + gchar *dest, gint dest_len, GString *str) +{ + gchar *cur_pos = src; + gchar *nextline; + + g_return_val_if_fail(str != NULL, cur_pos); + + /* read the next line if the current response buffer is empty */ + while (isspace(*(guchar *)cur_pos)) cur_pos++; + while (*cur_pos == '\0') { + if ((nextline = sock_getline(SESSION(session)->sock)) == NULL) + return cur_pos; + g_string_assign(str, nextline); + cur_pos = str->str; + strretchomp(nextline); + /* log_print("IMAP4< %s\n", nextline); */ + debug_print("IMAP4< %s\n", nextline); + g_free(nextline); + + while (isspace(*(guchar *)cur_pos)) cur_pos++; + } + + if (!strncmp(cur_pos, "NIL", 3)) { + *dest = '\0'; + cur_pos += 3; + } else if (*cur_pos == '\"') { + gchar *p; + + p = get_quoted(cur_pos, '\"', dest, dest_len); + cur_pos = p ? p : cur_pos + 2; + } else if (*cur_pos == '{') { + gchar buf[32]; + gint len; + gint line_len = 0; + + cur_pos = strchr_cpy(cur_pos + 1, '}', buf, sizeof(buf)); + len = atoi(buf); + g_return_val_if_fail(len >= 0, cur_pos); + + g_string_truncate(str, 0); + cur_pos = str->str; + + do { + if ((nextline = sock_getline(SESSION(session)->sock)) + == NULL) + return cur_pos; + line_len += strlen(nextline); + g_string_append(str, nextline); + cur_pos = str->str; + strretchomp(nextline); + /* log_print("IMAP4< %s\n", nextline); */ + debug_print("IMAP4< %s\n", nextline); + g_free(nextline); + } while (line_len < len); + + memcpy(dest, cur_pos, MIN(len, dest_len - 1)); + dest[MIN(len, dest_len - 1)] = '\0'; + cur_pos += len; + } + + return cur_pos; +} + +static gchar *imap_get_header(IMAPSession *session, gchar *cur_pos, + gchar **headers, GString *str) +{ + gchar *nextline; + gchar buf[32]; + gint len; + gint block_len = 0; + + *headers = NULL; + + g_return_val_if_fail(str != NULL, cur_pos); + + while (isspace(*(guchar *)cur_pos)) cur_pos++; + + g_return_val_if_fail(*cur_pos == '{', cur_pos); + + cur_pos = strchr_cpy(cur_pos + 1, '}', buf, sizeof(buf)); + len = atoi(buf); + g_return_val_if_fail(len >= 0, cur_pos); + + g_string_truncate(str, 0); + cur_pos = str->str; + + do { + if ((nextline = sock_getline(SESSION(session)->sock)) == NULL) + return cur_pos; + block_len += strlen(nextline); + g_string_append(str, nextline); + cur_pos = str->str; + strretchomp(nextline); + /* debug_print("IMAP4< %s\n", nextline); */ + g_free(nextline); + } while (block_len < len); + + debug_print("IMAP4< [contents of RFC822.HEADER]\n"); + + *headers = g_strndup(cur_pos, len); + cur_pos += len; + + while (isspace(*(guchar *)cur_pos)) cur_pos++; + while (*cur_pos == '\0') { + if ((nextline = sock_getline(SESSION(session)->sock)) == NULL) + return cur_pos; + g_string_assign(str, nextline); + cur_pos = str->str; + strretchomp(nextline); + debug_print("IMAP4< %s\n", nextline); + g_free(nextline); + + while (isspace(*(guchar *)cur_pos)) cur_pos++; + } + + return cur_pos; +} + +static MsgFlags imap_parse_flags(const gchar *flag_str) +{ + const gchar *p = flag_str; + MsgFlags flags = {0, 0}; + + flags.perm_flags = MSG_UNREAD; + + while ((p = strchr(p, '\\')) != NULL) { + p++; + + if (g_strncasecmp(p, "Recent", 6) == 0 && MSG_IS_UNREAD(flags)) { + MSG_SET_PERM_FLAGS(flags, MSG_NEW); + } else if (g_strncasecmp(p, "Seen", 4) == 0) { + MSG_UNSET_PERM_FLAGS(flags, MSG_NEW|MSG_UNREAD); + } else if (g_strncasecmp(p, "Deleted", 7) == 0) { + MSG_SET_PERM_FLAGS(flags, MSG_DELETED); + } else if (g_strncasecmp(p, "Flagged", 7) == 0) { + MSG_SET_PERM_FLAGS(flags, MSG_MARKED); + } else if (g_strncasecmp(p, "Answered", 8) == 0) { + MSG_SET_PERM_FLAGS(flags, MSG_REPLIED); + } + } + + return flags; +} + +static IMAPFlags imap_parse_imap_flags(const gchar *flag_str) +{ + const gchar *p = flag_str; + IMAPFlags flags = 0; + + while ((p = strchr(p, '\\')) != NULL) { + p++; + + if (g_strncasecmp(p, "Seen", 4) == 0) { + flags |= IMAP_FLAG_SEEN; + } else if (g_strncasecmp(p, "Deleted", 7) == 0) { + flags |= IMAP_FLAG_DELETED; + } else if (g_strncasecmp(p, "Flagged", 7) == 0) { + flags |= IMAP_FLAG_FLAGGED; + } else if (g_strncasecmp(p, "Answered", 8) == 0) { + flags |= IMAP_FLAG_ANSWERED; + } + } + + return flags; +} + +static MsgInfo *imap_parse_envelope(IMAPSession *session, FolderItem *item, + GString *line_str) +{ + gchar buf[IMAPBUFSIZE]; + MsgInfo *msginfo = NULL; + gchar *cur_pos; + gint msgnum; + guint32 uid = 0; + size_t size = 0; + MsgFlags flags = {0, 0}, imap_flags = {0, 0}; + + g_return_val_if_fail(line_str != NULL, NULL); + g_return_val_if_fail(line_str->str[0] == '*' && + line_str->str[1] == ' ', NULL); + + MSG_SET_TMP_FLAGS(flags, MSG_IMAP); + if (item->stype == F_QUEUE) { + MSG_SET_TMP_FLAGS(flags, MSG_QUEUED); + } else if (item->stype == F_DRAFT) { + MSG_SET_TMP_FLAGS(flags, MSG_DRAFT); + } + + cur_pos = line_str->str + 2; + +#define PARSE_ONE_ELEMENT(ch) \ +{ \ + cur_pos = strchr_cpy(cur_pos, ch, buf, sizeof(buf)); \ + if (cur_pos == NULL) { \ + g_warning("cur_pos == NULL\n"); \ + procmsg_msginfo_free(msginfo); \ + return NULL; \ + } \ +} + + PARSE_ONE_ELEMENT(' '); + msgnum = atoi(buf); + + PARSE_ONE_ELEMENT(' '); + g_return_val_if_fail(!strcmp(buf, "FETCH"), NULL); + + g_return_val_if_fail(*cur_pos == '(', NULL); + cur_pos++; + + while (*cur_pos != '\0' && *cur_pos != ')') { + while (*cur_pos == ' ') cur_pos++; + + if (!strncmp(cur_pos, "UID ", 4)) { + cur_pos += 4; + uid = strtoul(cur_pos, &cur_pos, 10); + } else if (!strncmp(cur_pos, "FLAGS ", 6)) { + cur_pos += 6; + if (*cur_pos != '(') { + g_warning("*cur_pos != '('\n"); + procmsg_msginfo_free(msginfo); + return NULL; + } + cur_pos++; + PARSE_ONE_ELEMENT(')'); + imap_flags = imap_parse_flags(buf); + } else if (!strncmp(cur_pos, "RFC822.SIZE ", 12)) { + cur_pos += 12; + size = strtol(cur_pos, &cur_pos, 10); + } else if (!strncmp(cur_pos, "RFC822.HEADER ", 14)) { + gchar *headers; + + cur_pos += 14; + cur_pos = imap_get_header(session, cur_pos, &headers, + line_str); + msginfo = procheader_parse_str(headers, flags, FALSE); + g_free(headers); + } else { + g_warning("invalid FETCH response: %s\n", cur_pos); + break; + } + } + +#undef PARSE_ONE_ELEMENT + + if (msginfo) { + msginfo->msgnum = uid; + msginfo->size = size; + msginfo->flags.tmp_flags |= imap_flags.tmp_flags; + msginfo->flags.perm_flags = imap_flags.perm_flags; + } + + return msginfo; +} + +static gint imap_msg_list_change_perm_flags(GSList *msglist, MsgPermFlags flags, + gboolean is_set) +{ + Folder *folder; + IMAPSession *session; + IMAPFlags iflags = 0; + MsgInfo *msginfo; + GSList *seq_list, *cur; + gint ok = IMAP_SUCCESS; + + if (msglist == NULL) return IMAP_SUCCESS; + + msginfo = (MsgInfo *)msglist->data; + g_return_val_if_fail(msginfo != NULL, -1); + + g_return_val_if_fail(MSG_IS_IMAP(msginfo->flags), -1); + g_return_val_if_fail(msginfo->folder != NULL, -1); + g_return_val_if_fail(msginfo->folder->folder != NULL, -1); + + folder = msginfo->folder->folder; + g_return_val_if_fail(FOLDER_TYPE(folder) == F_IMAP, -1); + + session = imap_session_get(folder); + if (!session) return -1; + + ok = imap_select(session, IMAP_FOLDER(folder), msginfo->folder->path, + NULL, NULL, NULL, NULL); + if (ok != IMAP_SUCCESS) + return ok; + + seq_list = imap_get_seq_set_from_msglist(msglist); + + if (flags & MSG_MARKED) iflags |= IMAP_FLAG_FLAGGED; + if (flags & MSG_REPLIED) iflags |= IMAP_FLAG_ANSWERED; + + for (cur = seq_list; cur != NULL; cur = cur->next) { + gchar *seq_set = (gchar *)cur->data; + + if (iflags) { + ok = imap_set_message_flags(session, seq_set, iflags, + is_set); + if (ok != IMAP_SUCCESS) break; + } + + if (flags & MSG_UNREAD) { + ok = imap_set_message_flags(session, seq_set, + IMAP_FLAG_SEEN, !is_set); + if (ok != IMAP_SUCCESS) break; + } + } + + imap_seq_set_free(seq_list); + + return ok; +} + +gint imap_msg_set_perm_flags(MsgInfo *msginfo, MsgPermFlags flags) +{ + GSList msglist; + + msglist.data = msginfo; + msglist.next = NULL; + + return imap_msg_list_change_perm_flags(&msglist, flags, TRUE); +} + +gint imap_msg_unset_perm_flags(MsgInfo *msginfo, MsgPermFlags flags) +{ + GSList msglist; + + msglist.data = msginfo; + msglist.next = NULL; + + return imap_msg_list_change_perm_flags(&msglist, flags, FALSE); +} + +gint imap_msg_list_set_perm_flags(GSList *msglist, MsgPermFlags flags) +{ + return imap_msg_list_change_perm_flags(msglist, flags, TRUE); +} + +gint imap_msg_list_unset_perm_flags(GSList *msglist, MsgPermFlags flags) +{ + return imap_msg_list_change_perm_flags(msglist, flags, FALSE); +} + +static gchar *imap_get_flag_str(IMAPFlags flags) +{ + GString *str; + gchar *ret; + + str = g_string_new(NULL); + + if (IMAP_IS_SEEN(flags)) g_string_append(str, "\\Seen "); + if (IMAP_IS_ANSWERED(flags)) g_string_append(str, "\\Answered "); + if (IMAP_IS_FLAGGED(flags)) g_string_append(str, "\\Flagged "); + if (IMAP_IS_DELETED(flags)) g_string_append(str, "\\Deleted "); + if (IMAP_IS_DRAFT(flags)) g_string_append(str, "\\Draft"); + + if (str->len > 0 && str->str[str->len - 1] == ' ') + g_string_truncate(str, str->len - 1); + + ret = str->str; + g_string_free(str, FALSE); + + return ret; +} + +static gint imap_set_message_flags(IMAPSession *session, + const gchar *seq_set, + IMAPFlags flags, + gboolean is_set) +{ + gchar *cmd; + gchar *flag_str; + gint ok; + + flag_str = imap_get_flag_str(flags); + cmd = g_strconcat(is_set ? "+FLAGS.SILENT (" : "-FLAGS.SILENT (", + flag_str, ")", NULL); + g_free(flag_str); + + ok = imap_cmd_store(session, seq_set, cmd); + g_free(cmd); + + return ok; +} + +static gint imap_select(IMAPSession *session, IMAPFolder *folder, + const gchar *path, + gint *exists, gint *recent, gint *unseen, + guint32 *uid_validity) +{ + gchar *real_path; + gint ok; + gint exists_, recent_, unseen_, uid_validity_; + + if (!exists || !recent || !unseen || !uid_validity) { + if (session->mbox && strcmp(session->mbox, path) == 0) + return IMAP_SUCCESS; + exists = &exists_; + recent = &recent_; + unseen = &unseen_; + uid_validity = &uid_validity_; + } + + g_free(session->mbox); + session->mbox = NULL; + + real_path = imap_get_real_path(folder, path); + ok = imap_cmd_select(session, real_path, + exists, recent, unseen, uid_validity); + if (ok != IMAP_SUCCESS) + log_warning(_("can't select folder: %s\n"), real_path); + else + session->mbox = g_strdup(path); + g_free(real_path); + + return ok; +} + +#define THROW(err) { ok = err; goto catch; } + +static gint imap_status(IMAPSession *session, IMAPFolder *folder, + const gchar *path, + gint *messages, gint *recent, + guint32 *uid_next, guint32 *uid_validity, + gint *unseen) +{ + gchar *real_path; + gchar *real_path_; + gint ok; + GPtrArray *argbuf = NULL; + gchar *str; + + if (messages && recent && uid_next && uid_validity && unseen) { + *messages = *recent = *uid_next = *uid_validity = *unseen = 0; + argbuf = g_ptr_array_new(); + } + + real_path = imap_get_real_path(folder, path); + QUOTE_IF_REQUIRED(real_path_, real_path); + imap_cmd_gen_send(session, "STATUS %s " + "(MESSAGES RECENT UIDNEXT UIDVALIDITY UNSEEN)", + real_path_); + + ok = imap_cmd_ok(session, argbuf); + if (ok != IMAP_SUCCESS || !argbuf) THROW(ok); + + str = search_array_str(argbuf, "STATUS"); + if (!str) THROW(IMAP_ERROR); + + str = strchr(str, '('); + if (!str) THROW(IMAP_ERROR); + str++; + while (*str != '\0' && *str != ')') { + while (*str == ' ') str++; + + if (!strncmp(str, "MESSAGES ", 9)) { + str += 9; + *messages = strtol(str, &str, 10); + } else if (!strncmp(str, "RECENT ", 7)) { + str += 7; + *recent = strtol(str, &str, 10); + } else if (!strncmp(str, "UIDNEXT ", 8)) { + str += 8; + *uid_next = strtoul(str, &str, 10); + } else if (!strncmp(str, "UIDVALIDITY ", 12)) { + str += 12; + *uid_validity = strtoul(str, &str, 10); + } else if (!strncmp(str, "UNSEEN ", 7)) { + str += 7; + *unseen = strtol(str, &str, 10); + } else { + g_warning("invalid STATUS response: %s\n", str); + break; + } + } + +catch: + g_free(real_path); + if (argbuf) { + ptr_array_free_strings(argbuf); + g_ptr_array_free(argbuf, TRUE); + } + + return ok; +} + +#undef THROW + +static gboolean imap_has_capability(IMAPSession *session, + const gchar *capability) +{ + gchar **p; + + for (p = session->capability; *p != NULL; ++p) { + if (!g_strcasecmp(*p, capability)) + return TRUE; + } + + return FALSE; +} + +static void imap_capability_free(IMAPSession *session) +{ + g_strfreev(session->capability); + session->capability = NULL; +} + + +/* low-level IMAP4rev1 commands */ + +#define THROW(err) { ok = err; goto catch; } + +static gint imap_cmd_capability(IMAPSession *session) +{ + gint ok; + GPtrArray *argbuf; + gchar *capability; + + argbuf = g_ptr_array_new(); + + imap_cmd_gen_send(session, "CAPABILITY"); + if ((ok = imap_cmd_ok(session, argbuf)) != IMAP_SUCCESS) THROW(ok); + + capability = search_array_str(argbuf, "CAPABILITY "); + if (!capability) THROW(IMAP_ERROR); + + capability += strlen("CAPABILITY "); + + IMAP_SESSION(session)->capability = g_strsplit(capability, " ", -1); + +catch: + ptr_array_free_strings(argbuf); + g_ptr_array_free(argbuf, TRUE); + + return ok; +} + +#undef THROW + +static gint imap_cmd_authenticate(IMAPSession *session, const gchar *user, + const gchar *pass, IMAPAuthType type) +{ + gchar *auth_type; + gint ok; + gchar *buf = NULL; + gchar *challenge; + gint challenge_len; + gchar hexdigest[33]; + gchar *response; + gchar *response64; + + g_return_val_if_fail(type == IMAP_AUTH_CRAM_MD5, IMAP_ERROR); + + auth_type = "CRAM-MD5"; + + imap_cmd_gen_send(session, "AUTHENTICATE %s", auth_type); + ok = imap_cmd_gen_recv(session, &buf); + if (ok != IMAP_SUCCESS || buf[0] != '+' || buf[1] != ' ') { + g_free(buf); + return IMAP_ERROR; + } + + challenge = g_malloc(strlen(buf + 2) + 1); + challenge_len = base64_decode(challenge, buf + 2, -1); + challenge[challenge_len] = '\0'; + g_free(buf); + log_print("IMAP< [Decoded: %s]\n", challenge); + + md5_hex_hmac(hexdigest, challenge, challenge_len, pass, strlen(pass)); + g_free(challenge); + + response = g_strdup_printf("%s %s", user, hexdigest); + log_print("IMAP> [Encoded: %s]\n", response); + response64 = g_malloc((strlen(response) + 3) * 2 + 1); + base64_encode(response64, response, strlen(response)); + g_free(response); + + log_print("IMAP> %s\n", response64); + sock_puts(SESSION(session)->sock, response64); + ok = imap_cmd_ok(session, NULL); + if (ok != IMAP_SUCCESS) + log_warning(_("IMAP4 authentication failed.\n")); + + return ok; +} + +static gint imap_cmd_login(IMAPSession *session, + const gchar *user, const gchar *pass) +{ + gchar *user_, *pass_; + gint ok; + + QUOTE_IF_REQUIRED(user_, user); + QUOTE_IF_REQUIRED(pass_, pass); + imap_cmd_gen_send(session, "LOGIN %s %s", user_, pass_); + + ok = imap_cmd_ok(session, NULL); + if (ok != IMAP_SUCCESS) + log_warning(_("IMAP4 login failed.\n")); + + return ok; +} + +static gint imap_cmd_logout(IMAPSession *session) +{ + imap_cmd_gen_send(session, "LOGOUT"); + return imap_cmd_ok(session, NULL); +} + +static gint imap_cmd_noop(IMAPSession *session) +{ + imap_cmd_gen_send(session, "NOOP"); + return imap_cmd_ok(session, NULL); +} + +#if USE_SSL +static gint imap_cmd_starttls(IMAPSession *session) +{ + imap_cmd_gen_send(session, "STARTTLS"); + return imap_cmd_ok(session, NULL); +} +#endif + +#define THROW(err) { ok = err; goto catch; } + +static gint imap_cmd_namespace(IMAPSession *session, gchar **ns_str) +{ + gint ok; + GPtrArray *argbuf; + gchar *str; + + argbuf = g_ptr_array_new(); + + imap_cmd_gen_send(session, "NAMESPACE"); + if ((ok = imap_cmd_ok(session, argbuf)) != IMAP_SUCCESS) THROW(ok); + + str = search_array_str(argbuf, "NAMESPACE"); + if (!str) THROW(IMAP_ERROR); + + *ns_str = g_strdup(str); + +catch: + ptr_array_free_strings(argbuf); + g_ptr_array_free(argbuf, TRUE); + + return ok; +} + +#undef THROW + +static gint imap_cmd_list(IMAPSession *session, const gchar *ref, + const gchar *mailbox, GPtrArray *argbuf) +{ + gchar *ref_, *mailbox_; + + if (!ref) ref = "\"\""; + if (!mailbox) mailbox = "\"\""; + + QUOTE_IF_REQUIRED(ref_, ref); + QUOTE_IF_REQUIRED(mailbox_, mailbox); + imap_cmd_gen_send(session, "LIST %s %s", ref_, mailbox_); + + return imap_cmd_ok(session, argbuf); +} + +#define THROW goto catch + +static gint imap_cmd_do_select(IMAPSession *session, const gchar *folder, + gboolean examine, + gint *exists, gint *recent, gint *unseen, + guint32 *uid_validity) +{ + gint ok; + gchar *resp_str; + GPtrArray *argbuf; + gchar *select_cmd; + gchar *folder_; + guint uid_validity_; + + *exists = *recent = *unseen = *uid_validity = 0; + argbuf = g_ptr_array_new(); + + if (examine) + select_cmd = "EXAMINE"; + else + select_cmd = "SELECT"; + + QUOTE_IF_REQUIRED(folder_, folder); + imap_cmd_gen_send(session, "%s %s", select_cmd, folder_); + + if ((ok = imap_cmd_ok(session, argbuf)) != IMAP_SUCCESS) THROW; + + resp_str = search_array_contain_str(argbuf, "EXISTS"); + if (resp_str) { + if (sscanf(resp_str,"%d EXISTS", exists) != 1) { + g_warning("imap_cmd_select(): invalid EXISTS line.\n"); + THROW; + } + } + + resp_str = search_array_contain_str(argbuf, "RECENT"); + if (resp_str) { + if (sscanf(resp_str, "%d RECENT", recent) != 1) { + g_warning("imap_cmd_select(): invalid RECENT line.\n"); + THROW; + } + } + + resp_str = search_array_contain_str(argbuf, "UIDVALIDITY"); + if (resp_str) { + if (sscanf(resp_str, "OK [UIDVALIDITY %u] ", &uid_validity_) + != 1) { + g_warning("imap_cmd_select(): invalid UIDVALIDITY line.\n"); + THROW; + } + *uid_validity = uid_validity_; + } + + resp_str = search_array_contain_str(argbuf, "UNSEEN"); + if (resp_str) { + if (sscanf(resp_str, "OK [UNSEEN %d] ", unseen) != 1) { + g_warning("imap_cmd_select(): invalid UNSEEN line.\n"); + THROW; + } + } + +catch: + ptr_array_free_strings(argbuf); + g_ptr_array_free(argbuf, TRUE); + + return ok; +} + +static gint imap_cmd_select(IMAPSession *session, const gchar *folder, + gint *exists, gint *recent, gint *unseen, + guint32 *uid_validity) +{ + return imap_cmd_do_select(session, folder, FALSE, + exists, recent, unseen, uid_validity); +} + +static gint imap_cmd_examine(IMAPSession *session, const gchar *folder, + gint *exists, gint *recent, gint *unseen, + guint32 *uid_validity) +{ + return imap_cmd_do_select(session, folder, TRUE, + exists, recent, unseen, uid_validity); +} + +#undef THROW + +static gint imap_cmd_create(IMAPSession *session, const gchar *folder) +{ + gchar *folder_; + + QUOTE_IF_REQUIRED(folder_, folder); + imap_cmd_gen_send(session, "CREATE %s", folder_); + + return imap_cmd_ok(session, NULL); +} + +static gint imap_cmd_rename(IMAPSession *session, const gchar *old_folder, + const gchar *new_folder) +{ + gchar *old_folder_, *new_folder_; + + QUOTE_IF_REQUIRED(old_folder_, old_folder); + QUOTE_IF_REQUIRED(new_folder_, new_folder); + imap_cmd_gen_send(session, "RENAME %s %s", old_folder_, new_folder_); + + return imap_cmd_ok(session, NULL); +} + +static gint imap_cmd_delete(IMAPSession *session, const gchar *folder) +{ + gchar *folder_; + + QUOTE_IF_REQUIRED(folder_, folder); + imap_cmd_gen_send(session, "DELETE %s", folder_); + + return imap_cmd_ok(session, NULL); +} + +#define THROW(err) { ok = err; goto catch; } + +static gint imap_cmd_search(IMAPSession *session, const gchar *criteria, + GArray **result) +{ + gint ok; + GPtrArray *argbuf; + GArray *array; + gchar *str; + gchar *p, *ep; + guint32 uid; + + g_return_val_if_fail(criteria != NULL, IMAP_ERROR); + g_return_val_if_fail(result != NULL, IMAP_ERROR); + + argbuf = g_ptr_array_new(); + + imap_cmd_gen_send(session, "UID SEARCH %s", criteria); + if ((ok = imap_cmd_ok(session, argbuf)) != IMAP_SUCCESS) THROW(ok); + + str = search_array_str(argbuf, "SEARCH"); + if (!str) THROW(IMAP_ERROR); + + array = g_array_new(FALSE, FALSE, sizeof(guint32)); + + p = str + strlen("SEARCH"); + + while (*p != '\0') { + uid = strtoul(p, &ep, 10); + if (p < ep && uid > 0) { + g_array_append_val(array, uid); + p = ep; + } else + break; + } + + *result = array; + +catch: + ptr_array_free_strings(argbuf); + g_ptr_array_free(argbuf, TRUE); + + return ok; +} + +static gint imap_cmd_fetch(IMAPSession *session, guint32 uid, + const gchar *filename) +{ + gint ok; + gchar *buf; + gchar *cur_pos; + gchar size_str[32]; + glong size_num; + + g_return_val_if_fail(filename != NULL, IMAP_ERROR); + + imap_cmd_gen_send(session, "UID FETCH %d BODY.PEEK[]", uid); + + while ((ok = imap_cmd_gen_recv(session, &buf)) == IMAP_SUCCESS) { + if (buf[0] != '*' || buf[1] != ' ') { + g_free(buf); + return IMAP_ERROR; + } + if (strstr(buf, "FETCH") != NULL) break; + g_free(buf); + } + if (ok != IMAP_SUCCESS) + return ok; + +#define RETURN_ERROR_IF_FAIL(cond) \ + if (!(cond)) { \ + g_free(buf); \ + return IMAP_ERROR; \ + } + + cur_pos = strchr(buf, '{'); + RETURN_ERROR_IF_FAIL(cur_pos != NULL); + cur_pos = strchr_cpy(cur_pos + 1, '}', size_str, sizeof(size_str)); + RETURN_ERROR_IF_FAIL(cur_pos != NULL); + size_num = atol(size_str); + RETURN_ERROR_IF_FAIL(size_num >= 0); + + RETURN_ERROR_IF_FAIL(*cur_pos == '\0'); + +#undef RETURN_ERROR_IF_FAIL + + g_free(buf); + + if (recv_bytes_write_to_file(SESSION(session)->sock, + size_num, filename) != 0) + return IMAP_ERROR; + + if (imap_cmd_gen_recv(session, &buf) != IMAP_SUCCESS) + return IMAP_ERROR; + + if (buf[0] == '\0' || buf[strlen(buf) - 1] != ')') { + g_free(buf); + return IMAP_ERROR; + } + g_free(buf); + + ok = imap_cmd_ok(session, NULL); + + return ok; +} + +static gint imap_cmd_append(IMAPSession *session, const gchar *destfolder, + const gchar *file, IMAPFlags flags, + guint32 *new_uid) +{ + gint ok; + gint size; + gchar *destfolder_; + gchar *flag_str; + guint new_uid_; + gchar *ret = NULL; + gchar buf[BUFFSIZE]; + FILE *fp; + GPtrArray *argbuf; + gchar *resp_str; + + g_return_val_if_fail(file != NULL, IMAP_ERROR); + + size = get_file_size_as_crlf(file); + if ((fp = fopen(file, "rb")) == NULL) { + FILE_OP_ERROR(file, "fopen"); + return -1; + } + QUOTE_IF_REQUIRED(destfolder_, destfolder); + flag_str = imap_get_flag_str(flags); + imap_cmd_gen_send(session, "APPEND %s (%s) {%d}", + destfolder_, flag_str, size); + g_free(flag_str); + + ok = imap_cmd_gen_recv(session, &ret); + if (ok != IMAP_SUCCESS || ret[0] != '+' || ret[1] != ' ') { + log_warning(_("can't append %s to %s\n"), file, destfolder_); + g_free(ret); + fclose(fp); + return IMAP_ERROR; + } + g_free(ret); + + log_print("IMAP4> %s\n", _("(sending file...)")); + + while (fgets(buf, sizeof(buf), fp) != NULL) { + strretchomp(buf); + if (sock_puts(SESSION(session)->sock, buf) < 0) { + fclose(fp); + return -1; + } + } + + if (ferror(fp)) { + FILE_OP_ERROR(file, "fgets"); + fclose(fp); + return -1; + } + + sock_puts(SESSION(session)->sock, ""); + + fclose(fp); + + if (new_uid != NULL) + *new_uid = 0; + + if (new_uid != NULL && session->uidplus) { + argbuf = g_ptr_array_new(); + + ok = imap_cmd_ok(session, argbuf); + if (ok != IMAP_SUCCESS) + log_warning(_("can't append message to %s\n"), + destfolder_); + else if (argbuf->len > 0) { + resp_str = g_ptr_array_index(argbuf, argbuf->len - 1); + if (resp_str && + sscanf(resp_str, "%*u OK [APPENDUID %*u %u]", + &new_uid_) == 1) { + *new_uid = new_uid_; + } + } + + ptr_array_free_strings(argbuf); + g_ptr_array_free(argbuf, TRUE); + } else + ok = imap_cmd_ok(session, NULL); + + return ok; +} + +static gint imap_cmd_copy(IMAPSession *session, const gchar *seq_set, + const gchar *destfolder) +{ + gint ok; + gchar *destfolder_; + + g_return_val_if_fail(destfolder != NULL, IMAP_ERROR); + + QUOTE_IF_REQUIRED(destfolder_, destfolder); + imap_cmd_gen_send(session, "UID COPY %s %s", seq_set, destfolder_); + + ok = imap_cmd_ok(session, NULL); + if (ok != IMAP_SUCCESS) { + log_warning(_("can't copy %s to %s\n"), seq_set, destfolder_); + return -1; + } + + return ok; +} + +gint imap_cmd_envelope(IMAPSession *session, const gchar *seq_set) +{ + imap_cmd_gen_send + (session, "UID FETCH %s (UID FLAGS RFC822.SIZE RFC822.HEADER)", + seq_set); + + return IMAP_SUCCESS; +} + +static gint imap_cmd_store(IMAPSession *session, const gchar *seq_set, + const gchar *sub_cmd) +{ + gint ok; + + imap_cmd_gen_send(session, "UID STORE %s %s", seq_set, sub_cmd); + + if ((ok = imap_cmd_ok(session, NULL)) != IMAP_SUCCESS) { + log_warning(_("error while imap command: STORE %s %s\n"), + seq_set, sub_cmd); + return ok; + } + + return IMAP_SUCCESS; +} + +static gint imap_cmd_expunge(IMAPSession *session) +{ + gint ok; + + imap_cmd_gen_send(session, "EXPUNGE"); + if ((ok = imap_cmd_ok(session, NULL)) != IMAP_SUCCESS) { + log_warning(_("error while imap command: EXPUNGE\n")); + return ok; + } + + return IMAP_SUCCESS; +} + +static gint imap_cmd_close(IMAPSession *session) +{ + gint ok; + + imap_cmd_gen_send(session, "CLOSE"); + if ((ok = imap_cmd_ok(session, NULL)) != IMAP_SUCCESS) + log_warning(_("error while imap command: CLOSE\n")); + + return ok; +} + +static gint imap_cmd_ok(IMAPSession *session, GPtrArray *argbuf) +{ + gint ok; + gchar *buf; + gint cmd_num; + gchar cmd_status[IMAPBUFSIZE + 1]; + + while ((ok = imap_cmd_gen_recv(session, &buf)) == IMAP_SUCCESS) { + if (buf[0] == '*' && buf[1] == ' ') { + if (argbuf) { + g_memmove(buf, buf + 2, strlen(buf + 2) + 1); + g_ptr_array_add(argbuf, buf); + } else + g_free(buf); + continue; + } + + if (sscanf(buf, "%d %" Xstr(IMAPBUFSIZE) "s", + &cmd_num, cmd_status) < 2) { + g_free(buf); + return IMAP_ERROR; + } else if (cmd_num == session->cmd_count && + !strcmp(cmd_status, "OK")) { + if (argbuf) + g_ptr_array_add(argbuf, buf); + else + g_free(buf); + return IMAP_SUCCESS; + } else { + g_free(buf); + return IMAP_ERROR; + } + } + + return ok; +} + +static void imap_cmd_gen_send(IMAPSession *session, const gchar *format, ...) +{ + gchar buf[IMAPBUFSIZE]; + gchar tmp[IMAPBUFSIZE]; + gchar *p; + va_list args; + + va_start(args, format); + g_vsnprintf(tmp, sizeof(tmp), format, args); + va_end(args); + + session->cmd_count++; + + g_snprintf(buf, sizeof(buf), "%d %s\r\n", session->cmd_count, tmp); + if (!strncasecmp(tmp, "LOGIN ", 6) && (p = strchr(tmp + 6, ' '))) { + *p = '\0'; + log_print("IMAP4> %d %s ********\n", session->cmd_count, tmp); + } else + log_print("IMAP4> %d %s\n", session->cmd_count, tmp); + + sock_write_all(SESSION(session)->sock, buf, strlen(buf)); +} + +static gint imap_cmd_gen_recv(IMAPSession *session, gchar **ret) +{ + if ((*ret = sock_getline(SESSION(session)->sock)) == NULL) + return IMAP_SOCKET; + + strretchomp(*ret); + + log_print("IMAP4< %s\n", *ret); + + session_set_access_time(SESSION(session)); + + return IMAP_SUCCESS; +} + + +/* misc utility functions */ + +static gchar *strchr_cpy(const gchar *src, gchar ch, gchar *dest, gint len) +{ + gchar *tmp; + + dest[0] = '\0'; + tmp = strchr(src, ch); + if (!tmp) + return NULL; + + memcpy(dest, src, MIN(tmp - src, len - 1)); + dest[MIN(tmp - src, len - 1)] = '\0'; + + return tmp + 1; +} + +static gchar *get_quoted(const gchar *src, gchar ch, gchar *dest, gint len) +{ + const gchar *p = src; + gint n = 0; + + g_return_val_if_fail(*p == ch, NULL); + + *dest = '\0'; + p++; + + while (*p != '\0' && *p != ch) { + if (n < len - 1) { + if (*p == '\\' && *(p + 1) != '\0') + p++; + *dest++ = *p++; + } else + p++; + n++; + } + + *dest = '\0'; + return (gchar *)(*p == ch ? p + 1 : p); +} + +static gchar *search_array_contain_str(GPtrArray *array, gchar *str) +{ + gint i; + + for (i = 0; i < array->len; i++) { + gchar *tmp; + + tmp = g_ptr_array_index(array, i); + if (strstr(tmp, str) != NULL) + return tmp; + } + + return NULL; +} + +static gchar *search_array_str(GPtrArray *array, gchar *str) +{ + gint i; + gint len; + + len = strlen(str); + + for (i = 0; i < array->len; i++) { + gchar *tmp; + + tmp = g_ptr_array_index(array, i); + if (!strncmp(tmp, str, len)) + return tmp; + } + + return NULL; +} + +static void imap_path_separator_subst(gchar *str, gchar separator) +{ + gchar *p; + gboolean in_escape = FALSE; + + if (!separator || separator == '/') return; + + for (p = str; *p != '\0'; p++) { + if (*p == '/' && !in_escape) + *p = separator; + else if (*p == '&' && *(p + 1) != '-' && !in_escape) + in_escape = TRUE; + else if (*p == '-' && in_escape) + in_escape = FALSE; + } +} + +static gchar *imap_modified_utf7_to_locale(const gchar *mutf7_str) +{ +#if !HAVE_ICONV + const gchar *from_p; + gchar *to, *to_p; + + to = g_malloc(strlen(mutf7_str) + 1); + to_p = to; + + for (from_p = mutf7_str; *from_p != '\0'; from_p++) { + if (*from_p == '&' && *(from_p + 1) == '-') { + *to_p++ = '&'; + from_p++; + } else + *to_p++ = *from_p; + } + *to_p = '\0'; + + return to; +#else + static iconv_t cd = (iconv_t)-1; + static gboolean iconv_ok = TRUE; + GString *norm_utf7; + gchar *norm_utf7_p; + size_t norm_utf7_len; + const gchar *p; + gchar *to_str, *to_p; + size_t to_len; + gboolean in_escape = FALSE; + + if (!iconv_ok) return g_strdup(mutf7_str); + + if (cd == (iconv_t)-1) { + cd = iconv_open(conv_get_locale_charset_str(), "UTF-7"); + if (cd == (iconv_t)-1) { + g_warning("iconv cannot convert UTF-7 to %s\n", + conv_get_locale_charset_str()); + iconv_ok = FALSE; + return g_strdup(mutf7_str); + } + } + + norm_utf7 = g_string_new(NULL); + + for (p = mutf7_str; *p != '\0'; p++) { + /* replace: '&' -> '+', + "&-" -> '&', + escaped ',' -> '/' */ + if (!in_escape && *p == '&') { + if (*(p + 1) != '-') { + g_string_append_c(norm_utf7, '+'); + in_escape = TRUE; + } else { + g_string_append_c(norm_utf7, '&'); + p++; + } + } else if (in_escape && *p == ',') { + g_string_append_c(norm_utf7, '/'); + } else if (in_escape && *p == '-') { + g_string_append_c(norm_utf7, '-'); + in_escape = FALSE; + } else { + g_string_append_c(norm_utf7, *p); + } + } + + norm_utf7_p = norm_utf7->str; + norm_utf7_len = norm_utf7->len; + to_len = strlen(mutf7_str) * 5; + to_p = to_str = g_malloc(to_len + 1); + + if (iconv(cd, (ICONV_CONST gchar **)&norm_utf7_p, &norm_utf7_len, + &to_p, &to_len) == -1) { + g_warning(_("iconv cannot convert UTF-7 to %s\n"), + conv_get_locale_charset_str()); + g_string_free(norm_utf7, TRUE); + g_free(to_str); + return g_strdup(mutf7_str); + } + + /* second iconv() call for flushing */ + iconv(cd, NULL, NULL, &to_p, &to_len); + g_string_free(norm_utf7, TRUE); + *to_p = '\0'; + + return to_str; +#endif /* !HAVE_ICONV */ +} + +static gchar *imap_locale_to_modified_utf7(const gchar *from) +{ +#if !HAVE_ICONV + const gchar *from_p; + gchar *to, *to_p; + + to = g_malloc(strlen(from) * 2 + 1); + to_p = to; + + for (from_p = from; *from_p != '\0'; from_p++) { + if (*from_p == '&') { + *to_p++ = '&'; + *to_p++ = '-'; + } else + *to_p++ = *from_p; + } + *to_p = '\0'; + + return to; +#else + static iconv_t cd = (iconv_t)-1; + static gboolean iconv_ok = TRUE; + gchar *norm_utf7, *norm_utf7_p; + size_t from_len, norm_utf7_len; + GString *to_str; + gchar *from_tmp, *to, *p; + gboolean in_escape = FALSE; + + if (!iconv_ok) return g_strdup(from); + + if (cd == (iconv_t)-1) { + cd = iconv_open("UTF-7", conv_get_locale_charset_str()); + if (cd == (iconv_t)-1) { + g_warning(_("iconv cannot convert %s to UTF-7\n"), + conv_get_locale_charset_str()); + iconv_ok = FALSE; + return g_strdup(from); + } + } + + Xstrdup_a(from_tmp, from, return g_strdup(from)); + from_len = strlen(from); + norm_utf7_len = from_len * 5; + Xalloca(norm_utf7, norm_utf7_len + 1, return g_strdup(from)); + norm_utf7_p = norm_utf7; + +#define IS_PRINT(ch) (isprint(ch) && isascii(ch)) + + while (from_len > 0) { + if (*from_tmp == '+') { + *norm_utf7_p++ = '+'; + *norm_utf7_p++ = '-'; + norm_utf7_len -= 2; + from_tmp++; + from_len--; + } else if (IS_PRINT(*(guchar *)from_tmp)) { + /* printable ascii char */ + *norm_utf7_p = *from_tmp; + norm_utf7_p++; + norm_utf7_len--; + from_tmp++; + from_len--; + } else { + size_t mb_len = 0, conv_len = 0; + + /* unprintable char: convert to UTF-7 */ + p = from_tmp; + while (!IS_PRINT(*(guchar *)p) && conv_len < from_len) { + mb_len = mblen(p, MB_LEN_MAX); + if (mb_len <= 0) { + g_warning("wrong multibyte sequence\n"); + return g_strdup(from); + } + conv_len += mb_len; + p += mb_len; + } + + from_len -= conv_len; + if (iconv(cd, (ICONV_CONST gchar **)&from_tmp, + &conv_len, + &norm_utf7_p, &norm_utf7_len) == -1) { + g_warning("iconv cannot convert %s to UTF-7\n", + conv_get_locale_charset_str()); + return g_strdup(from); + } + + /* second iconv() call for flushing */ + iconv(cd, NULL, NULL, &norm_utf7_p, &norm_utf7_len); + } + } + +#undef IS_PRINT + + *norm_utf7_p = '\0'; + to_str = g_string_new(NULL); + for (p = norm_utf7; p < norm_utf7_p; p++) { + /* replace: '&' -> "&-", + '+' -> '&', + "+-" -> '+', + BASE64 '/' -> ',' */ + if (!in_escape && *p == '&') { + g_string_append(to_str, "&-"); + } else if (!in_escape && *p == '+') { + if (*(p + 1) == '-') { + g_string_append_c(to_str, '+'); + p++; + } else { + g_string_append_c(to_str, '&'); + in_escape = TRUE; + } + } else if (in_escape && *p == '/') { + g_string_append_c(to_str, ','); + } else if (in_escape && *p == '-') { + g_string_append_c(to_str, '-'); + in_escape = FALSE; + } else { + g_string_append_c(to_str, *p); + } + } + + if (in_escape) { + in_escape = FALSE; + g_string_append_c(to_str, '-'); + } + + to = to_str->str; + g_string_free(to_str, FALSE); + + return to; +#endif /* !HAVE_ICONV */ +} + +static GSList *imap_get_seq_set_from_msglist(GSList *msglist) +{ + GString *str; + GSList *sorted_list, *cur; + guint first, last, next; + gchar *ret_str; + GSList *ret_list = NULL; + + if (msglist == NULL) + return NULL; + + str = g_string_sized_new(256); + + sorted_list = g_slist_copy(msglist); + sorted_list = procmsg_sort_msg_list(sorted_list, SORT_BY_NUMBER, + SORT_ASCENDING); + + first = ((MsgInfo *)sorted_list->data)->msgnum; + + for (cur = sorted_list; cur != NULL; cur = cur->next) { + last = ((MsgInfo *)cur->data)->msgnum; + if (cur->next) + next = ((MsgInfo *)cur->next->data)->msgnum; + else + next = 0; + + if (last + 1 != next || next == 0) { + if (str->len > 0) + g_string_append_c(str, ','); + if (first == last) + g_string_sprintfa(str, "%u", first); + else + g_string_sprintfa(str, "%u:%u", first, last); + + first = next; + + if (str->len > IMAP_CMD_LIMIT) { + ret_str = g_strdup(str->str); + ret_list = g_slist_append(ret_list, ret_str); + g_string_truncate(str, 0); + } + } + } + + if (str->len > 0) { + ret_str = g_strdup(str->str); + ret_list = g_slist_append(ret_list, ret_str); + } + + g_slist_free(sorted_list); + g_string_free(str, TRUE); + + return ret_list; +} + +static void imap_seq_set_free(GSList *seq_list) +{ + slist_free_strings(seq_list); + g_slist_free(seq_list); +} + +static GHashTable *imap_get_uid_table(GArray *array) +{ + GHashTable *table; + gint i; + guint32 uid; + + g_return_val_if_fail(array != NULL, NULL); + + table = g_hash_table_new(NULL, g_direct_equal); + + for (i = 0; i < array->len; i++) { + uid = g_array_index(array, guint32, i); + g_hash_table_insert(table, GUINT_TO_POINTER(uid), + GINT_TO_POINTER(i + 1)); + } + + return table; +} + +static gboolean imap_rename_folder_func(GNode *node, gpointer data) +{ + FolderItem *item = node->data; + gchar **paths = data; + const gchar *oldpath = paths[0]; + const gchar *newpath = paths[1]; + gchar *base; + gchar *new_itempath; + gint oldpathlen; + + oldpathlen = strlen(oldpath); + if (strncmp(oldpath, item->path, oldpathlen) != 0) { + g_warning("path doesn't match: %s, %s\n", oldpath, item->path); + return TRUE; + } + + base = item->path + oldpathlen; + while (*base == G_DIR_SEPARATOR) base++; + if (*base == '\0') + new_itempath = g_strdup(newpath); + else + new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base, + NULL); + g_free(item->path); + item->path = new_itempath; + + return FALSE; +} |