/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ /* camel-imap-folder.c: class for an imap folder */ /* * Authors: * Dan Winship * Jeffrey Stedfast * * Copyright (C) 2000, 2001 Ximian, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public * License as published by the Free Software Foundation. * * 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 #endif #include #include #include #include #include #include #include #include #include #include "e-util/e-path.h" #include "camel-imap-folder.h" #include "camel-imap-command.h" #include "camel-imap-message-cache.h" #include "camel-imap-private.h" #include "camel-imap-search.h" #include "camel-imap-store.h" #include "camel-imap-summary.h" #include "camel-imap-utils.h" #include "camel-imap-wrapper.h" #include "camel-data-wrapper.h" #include "camel-disco-diary.h" #include "camel-exception.h" #include "camel-mime-filter-crlf.h" #include "camel-mime-filter-from.h" #include "camel-mime-message.h" #include "camel-mime-utils.h" #include "camel-multipart.h" #include "camel-operation.h" #include "camel-session.h" #include "camel-stream-buffer.h" #include "camel-stream-filter.h" #include "camel-stream-mem.h" #include "camel-stream.h" #include "string-utils.h" /* set to -1 for infinite size */ #define UID_SET_LIMIT (4096) #define CF_CLASS(o) (CAMEL_FOLDER_CLASS (CAMEL_OBJECT_GET_CLASS(o))) static CamelDiscoFolderClass *disco_folder_class = NULL; static void imap_finalize (CamelObject *object); static void imap_rescan (CamelFolder *folder, int exists, CamelException *ex); static void imap_refresh_info (CamelFolder *folder, CamelException *ex); static void imap_sync_online (CamelFolder *folder, CamelException *ex); static void imap_sync_offline (CamelFolder *folder, CamelException *ex); static void imap_expunge_uids_online (CamelFolder *folder, GPtrArray *uids, CamelException *ex); static void imap_expunge_uids_offline (CamelFolder *folder, GPtrArray *uids, CamelException *ex); static void imap_expunge_uids_resyncing (CamelFolder *folder, GPtrArray *uids, CamelException *ex); static void imap_cache_message (CamelDiscoFolder *disco_folder, const char *uid, CamelException *ex); static void imap_rename (CamelFolder *folder, const char *new); /* message manipulation */ static CamelMimeMessage *imap_get_message (CamelFolder *folder, const gchar *uid, CamelException *ex); static void imap_append_online (CamelFolder *folder, CamelMimeMessage *message, const CamelMessageInfo *info, CamelException *ex); static void imap_append_offline (CamelFolder *folder, CamelMimeMessage *message, const CamelMessageInfo *info, CamelException *ex); static void imap_append_resyncing (CamelFolder *folder, CamelMimeMessage *message, const CamelMessageInfo *info, CamelException *ex); static void imap_transfer_online (CamelFolder *source, GPtrArray *uids, CamelFolder *destination, gboolean delete_originals, CamelException *ex); static void imap_transfer_offline (CamelFolder *source, GPtrArray *uids, CamelFolder *destination, gboolean delete_originals, CamelException *ex); static void imap_transfer_resyncing (CamelFolder *source, GPtrArray *uids, CamelFolder *destination, gboolean delete_originals, CamelException *ex); /* searching */ static GPtrArray *imap_search_by_expression (CamelFolder *folder, const char *expression, CamelException *ex); static GPtrArray *imap_search_by_uids (CamelFolder *folder, const char *expression, GPtrArray *uids, CamelException *ex); static void imap_search_free (CamelFolder *folder, GPtrArray *uids); static void imap_thaw (CamelFolder *folder); GData *parse_fetch_response (CamelImapFolder *imap_folder, char *msg_att); static void camel_imap_folder_class_init (CamelImapFolderClass *camel_imap_folder_class) { CamelFolderClass *camel_folder_class = CAMEL_FOLDER_CLASS (camel_imap_folder_class); CamelDiscoFolderClass *camel_disco_folder_class = CAMEL_DISCO_FOLDER_CLASS (camel_imap_folder_class); disco_folder_class = CAMEL_DISCO_FOLDER_CLASS (camel_type_get_global_classfuncs (camel_disco_folder_get_type ())); /* virtual method overload */ camel_folder_class->get_message = imap_get_message; camel_folder_class->rename = imap_rename; camel_folder_class->search_by_expression = imap_search_by_expression; camel_folder_class->search_by_uids = imap_search_by_uids; camel_folder_class->search_free = imap_search_free; camel_folder_class->thaw = imap_thaw; camel_disco_folder_class->refresh_info_online = imap_refresh_info; camel_disco_folder_class->sync_online = imap_sync_online; camel_disco_folder_class->sync_offline = imap_sync_offline; /* We don't sync flags at resync time: the online code will * deal with it eventually. */ camel_disco_folder_class->sync_resyncing = imap_sync_offline; camel_disco_folder_class->expunge_uids_online = imap_expunge_uids_online; camel_disco_folder_class->expunge_uids_offline = imap_expunge_uids_offline; camel_disco_folder_class->expunge_uids_resyncing = imap_expunge_uids_resyncing; camel_disco_folder_class->append_online = imap_append_online; camel_disco_folder_class->append_offline = imap_append_offline; camel_disco_folder_class->append_resyncing = imap_append_resyncing; camel_disco_folder_class->transfer_online = imap_transfer_online; camel_disco_folder_class->transfer_offline = imap_transfer_offline; camel_disco_folder_class->transfer_resyncing = imap_transfer_resyncing; camel_disco_folder_class->cache_message = imap_cache_message; } static void camel_imap_folder_init (gpointer object, gpointer klass) { CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (object); CamelFolder *folder = CAMEL_FOLDER (object); folder->folder_flags |= (CAMEL_FOLDER_HAS_SUMMARY_CAPABILITY | CAMEL_FOLDER_HAS_SEARCH_CAPABILITY); imap_folder->priv = g_malloc0(sizeof(*imap_folder->priv)); #ifdef ENABLE_THREADS imap_folder->priv->search_lock = e_mutex_new(E_MUTEX_SIMPLE); imap_folder->priv->cache_lock = e_mutex_new(E_MUTEX_REC); #endif imap_folder->need_rescan = TRUE; } CamelType camel_imap_folder_get_type (void) { static CamelType camel_imap_folder_type = CAMEL_INVALID_TYPE; if (camel_imap_folder_type == CAMEL_INVALID_TYPE) { camel_imap_folder_type = camel_type_register (CAMEL_DISCO_FOLDER_TYPE, "CamelImapFolder", sizeof (CamelImapFolder), sizeof (CamelImapFolderClass), (CamelObjectClassInitFunc) camel_imap_folder_class_init, NULL, (CamelObjectInitFunc) camel_imap_folder_init, (CamelObjectFinalizeFunc) imap_finalize); } return camel_imap_folder_type; } CamelFolder * camel_imap_folder_new (CamelStore *parent, const char *folder_name, const char *folder_dir, CamelException *ex) { CamelImapStore *imap_store = CAMEL_IMAP_STORE (parent); CamelFolder *folder; CamelImapFolder *imap_folder; const char *short_name; char *summary_file; if (camel_mkdir_hier (folder_dir, S_IRWXU) != 0) { camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM, _("Could not create directory %s: %s"), folder_dir, g_strerror (errno)); return NULL; } folder = CAMEL_FOLDER (camel_object_new (camel_imap_folder_get_type ())); short_name = strrchr (folder_name, imap_store->dir_sep); if (short_name) short_name++; else short_name = folder_name; camel_folder_construct (folder, parent, folder_name, short_name); summary_file = g_strdup_printf ("%s/summary", folder_dir); folder->summary = camel_imap_summary_new (summary_file); g_free (summary_file); if (!folder->summary) { camel_object_unref (CAMEL_OBJECT (folder)); camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM, _("Could not load summary for %s"), folder_name); return NULL; } imap_folder = CAMEL_IMAP_FOLDER (folder); imap_folder->cache = camel_imap_message_cache_new (folder_dir, folder->summary, ex); if (!imap_folder->cache) { camel_object_unref (CAMEL_OBJECT (folder)); return NULL; } if ((imap_store->parameters & IMAP_PARAM_FILTER_INBOX) && !g_strcasecmp (folder_name, "INBOX")) folder->folder_flags |= CAMEL_FOLDER_FILTER_RECENT; imap_folder->search = camel_imap_search_new(folder_dir); return folder; } /* Called with the store's command_lock locked */ void camel_imap_folder_selected (CamelFolder *folder, CamelImapResponse *response, CamelException *ex) { CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder); CamelImapSummary *imap_summary = CAMEL_IMAP_SUMMARY (folder->summary); unsigned long exists = 0, validity = 0, val, uid; CamelMessageInfo *info; GData *fetch_data; int i, count; char *resp; CAMEL_IMAP_STORE_ASSERT_LOCKED (folder->parent_store, command_lock); count = camel_folder_summary_count (folder->summary); for (i = 0; i < response->untagged->len; i++) { resp = response->untagged->pdata[i] + 2; if (!g_strncasecmp (resp, "FLAGS ", 6) && !folder->permanent_flags) { resp += 6; folder->permanent_flags = imap_parse_flag_list (&resp); } else if (!g_strncasecmp (resp, "OK [PERMANENTFLAGS ", 19)) { resp += 19; folder->permanent_flags = imap_parse_flag_list (&resp); } else if (!g_strncasecmp (resp, "OK [UIDVALIDITY ", 16)) { validity = strtoul (resp + 16, NULL, 10); } else if (isdigit ((unsigned char)*resp)) { unsigned long num = strtoul (resp, &resp, 10); if (!g_strncasecmp (resp, " EXISTS", 7)) { exists = num; /* Remove from the response so nothing * else tries to interpret it. */ g_free (response->untagged->pdata[i]); g_ptr_array_remove_index (response->untagged, i--); } } } if (camel_disco_store_status (CAMEL_DISCO_STORE (folder->parent_store)) == CAMEL_DISCO_STORE_RESYNCING) { if (validity != imap_summary->validity) { camel_exception_setv (ex, CAMEL_EXCEPTION_FOLDER_SUMMARY_INVALID, _("Folder was destroyed and recreated on server.")); return; } /* FIXME: find missing UIDs ? */ return; } if (!imap_summary->validity) imap_summary->validity = validity; else if (validity != imap_summary->validity) { imap_summary->validity = validity; camel_folder_summary_clear (folder->summary); CAMEL_IMAP_FOLDER_LOCK (imap_folder, cache_lock); camel_imap_message_cache_clear (imap_folder->cache); CAMEL_IMAP_FOLDER_UNLOCK (imap_folder, cache_lock); imap_folder->need_rescan = FALSE; camel_imap_folder_changed (folder, exists, NULL, ex); return; } /* If we've lost messages, we have to rescan everything */ if (exists < count) imap_folder->need_rescan = TRUE; else if (count != 0 && !imap_folder->need_rescan) { CamelImapStore *store = CAMEL_IMAP_STORE (folder->parent_store); /* Similarly, if the UID of the highest message we * know about has changed, then that indicates that * messages have been both added and removed, so we * have to rescan to find the removed ones. (We pass * NULL for the folder since we know that this folder * is selected, and we don't want camel_imap_command * to worry about it.) */ response = camel_imap_command (store, NULL, ex, "FETCH %d UID", count); if (!response) return; uid = 0; for (i = 0; i < response->untagged->len; i++) { resp = response->untagged->pdata[i]; val = strtoul (resp + 2, &resp, 10); if (val == 0) continue; if (!g_strcasecmp (resp, " EXISTS")) { /* Another one?? */ exists = val; continue; } if (uid != 0 || val != count || g_strncasecmp (resp, " FETCH (", 8) != 0) continue; fetch_data = parse_fetch_response (imap_folder, resp + 7); uid = strtoul (g_datalist_get_data (&fetch_data, "UID"), NULL, 10); g_datalist_clear (&fetch_data); } camel_imap_response_free_without_processing (store, response); info = camel_folder_summary_index (folder->summary, count - 1); val = strtoul (camel_message_info_uid (info), NULL, 10); camel_folder_summary_info_free (folder->summary, info); if (uid == 0 || uid != val) imap_folder->need_rescan = TRUE; } /* Now rescan if we need to */ if (imap_folder->need_rescan) { imap_rescan (folder, exists, ex); return; } /* If we don't need to rescan completely, but new messages * have been added, find out about them. */ if (exists > count) camel_imap_folder_changed (folder, exists, NULL, ex); /* And we're done. */ } static void imap_finalize (CamelObject *object) { CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (object); if (imap_folder->search) camel_object_unref (CAMEL_OBJECT (imap_folder->search)); if (imap_folder->cache) camel_object_unref (CAMEL_OBJECT (imap_folder->cache)); #ifdef ENABLE_THREADS e_mutex_destroy(imap_folder->priv->search_lock); e_mutex_destroy(imap_folder->priv->cache_lock); #endif g_free(imap_folder->priv); } static void imap_rename (CamelFolder *folder, const char *new) { CamelImapFolder *imap_folder = (CamelImapFolder *)folder; CamelImapStore *imap_store = (CamelImapStore *)folder->parent_store; char *folder_dir, *summary_path; folder_dir = e_path_to_physical (imap_store->storage_path, new); summary_path = g_strdup_printf("%s/summary", folder_dir); CAMEL_IMAP_FOLDER_LOCK (folder, cache_lock); camel_imap_message_cache_set_path(imap_folder->cache, folder_dir); CAMEL_IMAP_FOLDER_UNLOCK (folder, cache_lock); camel_folder_summary_set_filename(folder->summary, summary_path); g_free(summary_path); g_free(folder_dir); ((CamelFolderClass *)disco_folder_class)->rename(folder, new); } static void imap_refresh_info (CamelFolder *folder, CamelException *ex) { CamelImapStore *imap_store = CAMEL_IMAP_STORE (folder->parent_store); CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder); CamelImapResponse *response; if (camel_disco_store_status (CAMEL_DISCO_STORE (imap_store)) == CAMEL_DISCO_STORE_OFFLINE) return; if (camel_folder_is_frozen (folder)) { imap_folder->need_refresh = TRUE; return; } /* If the folder isn't selected, select it (which will force * a rescan if one is needed. */ if (imap_store->current_folder != folder) { response = camel_imap_command (imap_store, folder, ex, NULL); camel_imap_response_free (imap_store, response); return; } /* Otherwise, if we need a rescan, do it, and if not, just do * a NOOP to give the server a chance to tell us about new * messages. */ if (imap_folder->need_rescan) imap_rescan (folder, camel_folder_summary_count (folder->summary), ex); else { response = camel_imap_command (imap_store, folder, ex, "NOOP"); camel_imap_response_free (imap_store, response); } } /* Called with the store's command_lock locked */ static void imap_rescan (CamelFolder *folder, int exists, CamelException *ex) { CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder); CamelImapStore *store = CAMEL_IMAP_STORE (folder->parent_store); struct { char *uid; guint32 flags; } *new; char *resp; CamelImapResponseType type; int i, seq, summary_len, summary_got; CamelMessageInfo *info; CamelImapMessageInfo *iinfo; GArray *removed; gboolean ok; CamelFolderChangeInfo *changes = NULL; CAMEL_IMAP_STORE_ASSERT_LOCKED (store, command_lock); imap_folder->need_rescan = FALSE; summary_len = camel_folder_summary_count (folder->summary); if (summary_len == 0) { if (exists) camel_imap_folder_changed (folder, exists, NULL, ex); return; } /* Check UIDs and flags of all messages we already know of. */ camel_operation_start (NULL, _("Scanning for changed messages")); info = camel_folder_summary_index (folder->summary, summary_len - 1); ok = camel_imap_command_start (store, folder, ex, "UID FETCH 1:%s (FLAGS)", camel_message_info_uid (info)); camel_folder_summary_info_free (folder->summary, info); if (!ok) { camel_operation_end (NULL); return; } new = g_malloc0 (summary_len * sizeof (*new)); summary_got = 0; while ((type = camel_imap_command_response (store, &resp, ex)) == CAMEL_IMAP_RESPONSE_UNTAGGED) { GData *data; char *uid; guint32 flags; data = parse_fetch_response (imap_folder, resp); g_free (resp); if (!data) continue; seq = GPOINTER_TO_INT (g_datalist_get_data (&data, "SEQUENCE")); uid = g_datalist_get_data (&data, "UID"); flags = GPOINTER_TO_UINT (g_datalist_get_data (&data, "FLAGS")); if (!uid || !seq || seq >= summary_len) { g_datalist_clear (&data); continue; } camel_operation_progress (NULL, ++summary_got * 100 / summary_len); new[seq - 1].uid = g_strdup (uid); new[seq - 1].flags = flags; g_datalist_clear (&data); } camel_operation_end (NULL); if (type == CAMEL_IMAP_RESPONSE_ERROR) { for (i = 0; i < summary_len && new[i].uid; i++) g_free (new[i].uid); g_free (new); return; } /* Free the final tagged response */ g_free (resp); /* If we find a UID in the summary that doesn't correspond to * the UID in the folder, then either: (a) it's a real UID, * but the message was deleted on the server, or (b) it's a * fake UID, and needs to be removed from the summary in order * to sync up with the server. So either way, we remove it * from the summary. */ removed = g_array_new (FALSE, FALSE, sizeof (int)); for (i = 0; i < summary_len && new[i].uid; i++) { info = camel_folder_summary_index (folder->summary, i); iinfo = (CamelImapMessageInfo *)info; if (strcmp (camel_message_info_uid (info), new[i].uid) != 0) { camel_folder_summary_info_free(folder->summary, info); seq = i + 1; g_array_append_val (removed, seq); i--; summary_len--; continue; } /* Update summary flags */ if (new[i].flags != iinfo->server_flags) { guint32 server_set, server_cleared; server_set = new[i].flags & ~iinfo->server_flags; server_cleared = iinfo->server_flags & ~new[i].flags; info->flags = (info->flags | server_set) & ~server_cleared; iinfo->server_flags = new[i].flags; if (changes == NULL) changes = camel_folder_change_info_new(); camel_folder_change_info_change_uid(changes, new[i].uid); } camel_folder_summary_info_free (folder->summary, info); g_free (new[i].uid); } if (changes) { camel_object_trigger_event(CAMEL_OBJECT (folder), "folder_changed", changes); camel_folder_change_info_free(changes); } seq = i + 1; /* Free remaining memory. */ while (i < summary_len && new[i].uid) g_free (new[i++].uid); g_free (new); /* Remove any leftover cached summary messages. (Yes, we * repeatedly add the same number to the removed array. * See RFC2060 7.4.1) */ for (i = seq; i <= summary_len; i++) g_array_append_val (removed, seq); /* And finally update the summary. */ camel_imap_folder_changed (folder, exists, removed, ex); g_array_free (removed, TRUE); } /* the max number of chars that an unsigned 32-bit int can be is 10 chars plus 1 for a possible : */ #define UID_SET_FULL(setlen, maxlen) (maxlen > 0 ? setlen + 11 >= maxlen : FALSE) /* Find all messages in @folder with flags matching @flags and @mask. * If no messages match, returns %NULL. Otherwise, returns an array of * CamelMessageInfo and sets *@set to a message set corresponding the * UIDs of the matched messages (up to @UID_SET_LIMIT bytes). The * caller must free the infos, the array, and the set string. */ static GPtrArray * get_matching (CamelFolder *folder, guint32 flags, guint32 mask, char **set) { GPtrArray *matches; CamelMessageInfo *info; int i, max, range; GString *gset; matches = g_ptr_array_new (); gset = g_string_new (""); max = camel_folder_summary_count (folder->summary); range = -1; for (i = 0; i < max && !UID_SET_FULL (gset->len, UID_SET_LIMIT); i++) { info = camel_folder_summary_index (folder->summary, i); if (!info) continue; if ((info->flags & mask) != flags) { camel_folder_summary_info_free (folder->summary, info); if (range != -1) { if (range != i - 1) { info = matches->pdata[matches->len - 1]; g_string_sprintfa (gset, ":%s", camel_message_info_uid (info)); } range = -1; } continue; } g_ptr_array_add (matches, info); if (range != -1) continue; range = i; if (gset->len) g_string_append_c (gset, ','); g_string_sprintfa (gset, "%s", camel_message_info_uid (info)); } if (range != -1 && range != max - 1) { info = matches->pdata[matches->len - 1]; g_string_sprintfa (gset, ":%s", camel_message_info_uid (info)); } if (matches->len) { *set = gset->str; g_string_free (gset, FALSE); return matches; } else { g_string_free (gset, TRUE); g_ptr_array_free (matches, TRUE); return NULL; } } static void imap_sync_offline (CamelFolder *folder, CamelException *ex) { camel_folder_summary_save (folder->summary); } static void imap_sync_online (CamelFolder *folder, CamelException *ex) { CamelImapStore *store = CAMEL_IMAP_STORE (folder->parent_store); CamelImapResponse *response = NULL; CamelMessageInfo *info; GPtrArray *matches; char *set, *flaglist; gboolean unset; int i, j, max; CAMEL_IMAP_STORE_LOCK (store, command_lock); /* Find a message with changed flags, find all of the other * messages like it, sync them as a group, mark them as * updated, and continue. */ max = camel_folder_summary_count (folder->summary); for (i = 0; i < max; i++) { info = camel_folder_summary_index (folder->summary, i); if (!info) continue; if (!(info->flags & CAMEL_MESSAGE_FOLDER_FLAGGED)) { camel_folder_summary_info_free (folder->summary, info); continue; } /* Note: Cyrus is broken and will not accept an empty-set of flags so... if this is true then we want to unset the previously set flags.*/ unset = !(info->flags & CAMEL_IMAP_SERVER_FLAGS); /* FIXME: since we don't know the previously set flags, if unset is TRUE then just unset all the flags? */ flaglist = imap_create_flag_list (unset ? CAMEL_IMAP_SERVER_FLAGS : info->flags); /* Note: get_matching() uses UID_SET_LIMIT to limit the size of the uid-set string. We don't have to loop here to flush all the matching uids because they will be scooped up later by our parent loop (I think?). -- Jeff */ matches = get_matching (folder, info->flags & (CAMEL_IMAP_SERVER_FLAGS | CAMEL_MESSAGE_FOLDER_FLAGGED), CAMEL_IMAP_SERVER_FLAGS | CAMEL_MESSAGE_FOLDER_FLAGGED, &set); camel_folder_summary_info_free (folder->summary, info); /* Note: to `unset' flags, use -FLAGS.SILENT () */ response = camel_imap_command (store, folder, ex, "UID STORE %s %sFLAGS.SILENT %s", set, unset ? "-" : "", flaglist); g_free (set); g_free (flaglist); if (response) camel_imap_response_free (store, response); if (!camel_exception_is_set (ex)) { for (j = 0; j < matches->len; j++) { info = matches->pdata[j]; info->flags &= ~CAMEL_MESSAGE_FOLDER_FLAGGED; ((CamelImapMessageInfo*)info)->server_flags = info->flags & CAMEL_IMAP_SERVER_FLAGS; } camel_folder_summary_touch (folder->summary); } for (j = 0; j < matches->len; j++) { info = matches->pdata[j]; camel_folder_summary_info_free (folder->summary, info); } g_ptr_array_free (matches, TRUE); if (camel_exception_is_set (ex)) { CAMEL_IMAP_STORE_UNLOCK (store, command_lock); return; } } /* Save the summary */ imap_sync_offline (folder, ex); CAMEL_IMAP_STORE_UNLOCK (store, command_lock); } static void imap_expunge_uids_offline (CamelFolder *folder, GPtrArray *uids, CamelException *ex) { int i; for (i = 0; i < uids->len; i++) { camel_folder_summary_remove_uid (folder->summary, uids->pdata[i]); /* We intentionally don't remove it from the cache because * the cached data may be useful in replaying a COPY later. */ } camel_folder_summary_save (folder->summary); camel_disco_diary_log (CAMEL_DISCO_STORE (folder->parent_store)->diary, CAMEL_DISCO_DIARY_FOLDER_EXPUNGE, folder, uids); } static void imap_expunge_uids_online (CamelFolder *folder, GPtrArray *uids, CamelException *ex) { CamelImapStore *store = CAMEL_IMAP_STORE (folder->parent_store); CamelImapResponse *response; int uid = 0; char *set; CAMEL_IMAP_STORE_LOCK (store, command_lock); while (uid < uids->len) { set = imap_uid_array_to_set (folder->summary, uids, uid, UID_SET_LIMIT, &uid); response = camel_imap_command (store, folder, ex, "UID STORE %s +FLAGS.SILENT \\Deleted", set); if (response) camel_imap_response_free (store, response); if (camel_exception_is_set (ex)) { CAMEL_IMAP_STORE_UNLOCK (store, command_lock); g_free (set); return; } if (store->capabilities & IMAP_CAPABILITY_UIDPLUS) { response = camel_imap_command (store, folder, ex, "UID EXPUNGE %s", set); } else response = camel_imap_command (store, folder, ex, "EXPUNGE"); if (response) camel_imap_response_free (store, response); } CAMEL_IMAP_STORE_UNLOCK (store, command_lock); } static int uid_compar (const void *va, const void *vb) { const char **sa = (const char **)va, **sb = (const char **)vb; unsigned long a, b; a = strtoul (*sa, NULL, 10); b = strtoul (*sb, NULL, 10); if (a < b) return -1; else if (a == b) return 0; else return 1; } static void imap_expunge_uids_resyncing (CamelFolder *folder, GPtrArray *uids, CamelException *ex) { CamelImapStore *store = CAMEL_IMAP_STORE (folder->parent_store); GPtrArray *keep_uids, *mark_uids; CamelImapResponse *response; char *result; if (store->capabilities & IMAP_CAPABILITY_UIDPLUS) { imap_expunge_uids_online (folder, uids, ex); return; } /* If we don't have UID EXPUNGE we need to avoid expunging any * of the wrong messages. So we search for deleted messages, * and any that aren't in our to-expunge list get temporarily * marked un-deleted. */ CAMEL_IMAP_STORE_LOCK (store, command_lock); response = camel_imap_command (store, folder, ex, "UID SEARCH DELETED"); if (!response) { CAMEL_IMAP_STORE_UNLOCK (store, command_lock); return; } result = camel_imap_response_extract (store, response, "SEARCH", ex); if (!result) { CAMEL_IMAP_STORE_UNLOCK (store, command_lock); return; } if (result[8] == ' ') { char *uid, *lasts = NULL; unsigned long euid, kuid; int ei, ki; keep_uids = g_ptr_array_new (); mark_uids = g_ptr_array_new (); /* Parse SEARCH response */ for (uid = strtok_r (result + 9, " ", &lasts); uid; uid = strtok_r (NULL, " ", &lasts)) g_ptr_array_add (keep_uids, uid); qsort (keep_uids->pdata, keep_uids->len, sizeof (void *), uid_compar); /* Fill in "mark_uids", empty out "keep_uids" as needed */ for (ei = ki = 0; ei < uids->len; ei++) { euid = strtoul (uids->pdata[ei], NULL, 10); for (kuid = 0; ki < keep_uids->len; ki++) { kuid = strtoul (keep_uids->pdata[ki], NULL, 10); if (kuid >= euid) break; } if (euid == kuid) g_ptr_array_remove_index (keep_uids, ki); else g_ptr_array_add (mark_uids, uids->pdata[ei]); } } else { /* Empty SEARCH result, meaning nothing is marked deleted * on server. */ keep_uids = NULL; mark_uids = NULL; } g_free (result); /* Unmark messages to be kept */ if (keep_uids) { char *uidset; int uid = 0; while (uid < keep_uids->len) { uidset = imap_uid_array_to_set (folder->summary, keep_uids, uid, UID_SET_LIMIT, &uid); response = camel_imap_command (store, folder, ex, "UID STORE %s -FLAGS.SILENT \\Deleted", uidset); g_free (uidset); if (!response) { g_ptr_array_free (keep_uids, TRUE); g_ptr_array_free (mark_uids, TRUE); CAMEL_IMAP_STORE_UNLOCK (store, command_lock); return; } camel_imap_response_free (store, response); } } /* Mark any messages that still need to be marked */ if (mark_uids) { char *uidset; int uid = 0; while (uid < mark_uids->len) { uidset = imap_uid_array_to_set (folder->summary, mark_uids, uid, UID_SET_LIMIT, &uid); response = camel_imap_command (store, folder, ex, "UID STORE %s +FLAGS.SILENT \\Deleted", uidset); g_free (uidset); if (!response) { g_ptr_array_free (keep_uids, TRUE); g_ptr_array_free (mark_uids, TRUE); CAMEL_IMAP_STORE_UNLOCK (store, command_lock); return; } camel_imap_response_free (store, response); } g_ptr_array_free (mark_uids, TRUE); } /* Do the actual expunging */ response = camel_imap_command (store, folder, ex, "EXPUNGE"); if (response) camel_imap_response_free (store, response); /* And fix the remaining messages if we mangled them */ if (keep_uids) { char *uidset; int uid = 0; while (uid < keep_uids->len) { uidset = imap_uid_array_to_set (folder->summary, keep_uids, uid, UID_SET_LIMIT, &uid); /* Don't pass ex if it's already been set */ response = camel_imap_command (store, folder, camel_exception_is_set (ex) ? NULL : ex, "UID STORE %s +FLAGS.SILENT \\Deleted", uidset); g_free (uidset); if (response) camel_imap_response_free (store, response); } g_ptr_array_free (keep_uids, TRUE); } CAMEL_IMAP_STORE_UNLOCK (store, command_lock); } static void imap_append_offline (CamelFolder *folder, CamelMimeMessage *message, const CamelMessageInfo *info, CamelException *ex) { CamelImapStore *imap_store = CAMEL_IMAP_STORE (folder->parent_store); CamelImapMessageCache *cache = CAMEL_IMAP_FOLDER (folder)->cache; CamelFolderChangeInfo *changes; char *uid; /* We could keep a separate counter, but this one works fine. */ CAMEL_IMAP_STORE_LOCK (imap_store, command_lock); uid = g_strdup_printf ("append-%d", imap_store->command++); CAMEL_IMAP_STORE_UNLOCK (imap_store, command_lock); camel_imap_summary_add_offline (folder->summary, uid, message, info); CAMEL_IMAP_FOLDER_LOCK (folder, cache_lock); camel_imap_message_cache_insert_wrapper (cache, uid, "", CAMEL_DATA_WRAPPER (message), ex); CAMEL_IMAP_FOLDER_UNLOCK (folder, cache_lock); changes = camel_folder_change_info_new (); camel_folder_change_info_add_uid (changes, uid); camel_object_trigger_event (CAMEL_OBJECT (folder), "folder_changed", changes); camel_folder_change_info_free (changes); camel_disco_diary_log (CAMEL_DISCO_STORE (imap_store)->diary, CAMEL_DISCO_DIARY_FOLDER_APPEND, folder, uid); g_free (uid); } static CamelImapResponse * do_append (CamelFolder *folder, CamelMimeMessage *message, const CamelMessageInfo *info, char **uid, CamelException *ex) { CamelImapStore *store = CAMEL_IMAP_STORE (folder->parent_store); CamelImapResponse *response; CamelStream *memstream; CamelMimeFilter *crlf_filter; CamelStreamFilter *streamfilter; GByteArray *ba; char *flagstr, *result, *end; /* create flag string param */ if (info && info->flags) flagstr = imap_create_flag_list (info->flags); else flagstr = NULL; /* encode any 8bit parts so we avoid sending embedded nul-chars and such */ camel_mime_message_encode_8bit_parts (message); /* FIXME: We could avoid this if we knew how big the message was. */ memstream = camel_stream_mem_new (); ba = g_byte_array_new (); camel_stream_mem_set_byte_array (CAMEL_STREAM_MEM (memstream), ba); streamfilter = camel_stream_filter_new_with_stream (memstream); crlf_filter = camel_mime_filter_crlf_new (CAMEL_MIME_FILTER_CRLF_ENCODE, CAMEL_MIME_FILTER_CRLF_MODE_CRLF_ONLY); camel_stream_filter_add (streamfilter, crlf_filter); camel_data_wrapper_write_to_stream (CAMEL_DATA_WRAPPER (message), CAMEL_STREAM (streamfilter)); camel_object_unref (CAMEL_OBJECT (streamfilter)); camel_object_unref (CAMEL_OBJECT (crlf_filter)); camel_object_unref (CAMEL_OBJECT (memstream)); response = camel_imap_command (store, NULL, ex, "APPEND %F%s%s {%d}", folder->full_name, flagstr ? " " : "", flagstr ? flagstr : "", ba->len); g_free (flagstr); if (!response) { g_byte_array_free (ba, TRUE); return NULL; } result = camel_imap_response_extract_continuation (store, response, ex); if (!result) { g_byte_array_free (ba, TRUE); return NULL; } g_free (result); /* send the rest of our data - the mime message */ response = camel_imap_command_continuation (store, ba->data, ba->len, ex); g_byte_array_free (ba, TRUE); if (!response) return response; if (store->capabilities & IMAP_CAPABILITY_UIDPLUS) { *uid = strstrcase (response->status, "[APPENDUID "); if (*uid) *uid = strchr (*uid + 11, ' '); if (*uid) { *uid = g_strndup (*uid + 1, strcspn (*uid + 1, "]")); /* Make sure it's a number */ if (strtoul (*uid, &end, 10) == 0 || *end) { g_free (*uid); *uid = NULL; } } } else *uid = NULL; return response; } static void imap_append_online (CamelFolder *folder, CamelMimeMessage *message, const CamelMessageInfo *info, CamelException *ex) { CamelImapStore *store = CAMEL_IMAP_STORE (folder->parent_store); CamelImapResponse *response; char *uid; int count; count = camel_folder_summary_count (folder->summary); response = do_append (folder, message, info, &uid, ex); if (!response) return; if (uid) { /* Cache first, since freeing response may trigger a * summary update that will want this information. */ CAMEL_IMAP_FOLDER_LOCK (folder, cache_lock); camel_imap_message_cache_insert_wrapper ( CAMEL_IMAP_FOLDER (folder)->cache, uid, "", CAMEL_DATA_WRAPPER (message), ex); CAMEL_IMAP_FOLDER_UNLOCK (folder, cache_lock); g_free (uid); } camel_imap_response_free (store, response); /* Make sure a "folder_changed" is emitted. */ if (store->current_folder != folder || camel_folder_summary_count (folder->summary) == count) imap_refresh_info (folder, ex); } static void imap_append_resyncing (CamelFolder *folder, CamelMimeMessage *message, const CamelMessageInfo *info, CamelException *ex) { CamelImapStore *store = CAMEL_IMAP_STORE (folder->parent_store); CamelImapResponse *response; char *uid; response = do_append (folder, message, info, &uid, ex); if (!response) return; if (uid) { CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder); const char *olduid = camel_message_info_uid (info); CAMEL_IMAP_FOLDER_LOCK (imap_folder, cache_lock); camel_imap_message_cache_copy (imap_folder->cache, olduid, imap_folder->cache, uid, ex); CAMEL_IMAP_FOLDER_UNLOCK (imap_folder, cache_lock); camel_disco_diary_uidmap_add (CAMEL_DISCO_STORE (store)->diary, olduid, uid); } camel_imap_response_free (store, response); } static void imap_transfer_offline (CamelFolder *source, GPtrArray *uids, CamelFolder *destination, gboolean delete_originals, CamelException *ex) { CamelImapStore *store = CAMEL_IMAP_STORE (source->parent_store); CamelImapMessageCache *sc = CAMEL_IMAP_FOLDER (source)->cache; CamelImapMessageCache *dc = CAMEL_IMAP_FOLDER (destination)->cache; CamelFolderChangeInfo *changes; CamelMimeMessage *message; CamelMessageInfo *mi; char *uid, *destuid; int i; /* We grab the store's command lock first, and then grab the * source and destination cache_locks. This way we can't * deadlock in the case where we're simultaneously also trying * to copy messages in the other direction from another thread. */ CAMEL_IMAP_STORE_LOCK (store, command_lock); CAMEL_IMAP_FOLDER_LOCK (source, cache_lock); CAMEL_IMAP_FOLDER_LOCK (destination, cache_lock); CAMEL_IMAP_STORE_UNLOCK (store, command_lock); changes = camel_folder_change_info_new (); for (i = 0; i < uids->len; i++) { uid = uids->pdata[i]; message = camel_folder_get_message (source, uid, NULL); if (!message) continue; mi = camel_folder_summary_uid (source->summary, uid); g_return_if_fail (mi != NULL); destuid = g_strdup_printf ("copy-%s:%s", source->full_name, uid); camel_imap_summary_add_offline (destination->summary, destuid, message, mi); camel_imap_message_cache_copy (sc, uid, dc, destuid, ex); camel_folder_summary_info_free (source->summary, mi); camel_object_unref (CAMEL_OBJECT (message)); camel_folder_change_info_add_uid (changes, destuid); g_free (destuid); if (delete_originals) camel_folder_delete_message (source, uid); } CAMEL_IMAP_FOLDER_UNLOCK (destination, cache_lock); CAMEL_IMAP_FOLDER_UNLOCK (source, cache_lock); camel_object_trigger_event (CAMEL_OBJECT (destination), "folder_changed", changes); camel_folder_change_info_free (changes); camel_disco_diary_log (CAMEL_DISCO_STORE (store)->diary, CAMEL_DISCO_DIARY_FOLDER_TRANSFER, source, destination, uids, delete_originals); } static void handle_copyuid (CamelImapResponse *response, CamelFolder *source, CamelFolder *destination) { CamelImapMessageCache *scache = CAMEL_IMAP_FOLDER (source)->cache; CamelImapMessageCache *dcache = CAMEL_IMAP_FOLDER (destination)->cache; char *validity, *srcset, *destset; GPtrArray *src, *dest; int i; validity = strstrcase (response->status, "[COPYUID "); if (!validity) return; validity += 9; if (strtoul (validity, NULL, 10) != CAMEL_IMAP_SUMMARY (destination->summary)->validity) return; srcset = strchr (validity, ' '); if (!srcset++) goto lose; destset = strchr (srcset, ' '); if (!destset++) goto lose; src = imap_uid_set_to_array (source->summary, srcset); dest = imap_uid_set_to_array (destination->summary, destset); if (src && dest && src->len == dest->len) { /* We don't have to worry about deadlocking on the * cache locks here, because we've got the store's * command lock too, so no one else could be here. */ CAMEL_IMAP_FOLDER_LOCK (source, cache_lock); CAMEL_IMAP_FOLDER_LOCK (destination, cache_lock); for (i = 0; i < src->len; i++) { camel_imap_message_cache_copy (scache, src->pdata[i], dcache, dest->pdata[i], NULL); } CAMEL_IMAP_FOLDER_UNLOCK (source, cache_lock); CAMEL_IMAP_FOLDER_UNLOCK (destination, cache_lock); imap_uid_array_free (src); imap_uid_array_free (dest); return; } imap_uid_array_free (src); imap_uid_array_free (dest); lose: g_warning ("Bad COPYUID response from server"); } static void do_copy (CamelFolder *source, GPtrArray *uids, CamelFolder *destination, CamelException *ex) { CamelImapStore *store = CAMEL_IMAP_STORE (source->parent_store); CamelImapResponse *response; char *uidset; int uid = 0; while (uid < uids->len && !camel_exception_is_set (ex)) { uidset = imap_uid_array_to_set (source->summary, uids, uid, UID_SET_LIMIT, &uid); response = camel_imap_command (store, source, ex, "UID COPY %s %F", uidset, destination->full_name); g_free (uidset); if (response && (store->capabilities & IMAP_CAPABILITY_UIDPLUS)) handle_copyuid (response, source, destination); camel_imap_response_free (store, response); } } static void imap_transfer_online (CamelFolder *source, GPtrArray *uids, CamelFolder *destination, gboolean delete_originals, CamelException *ex) { CamelImapStore *store = CAMEL_IMAP_STORE (source->parent_store); int count, i; /* Sync message flags if needed. */ imap_sync_online (source, ex); if (camel_exception_is_set (ex)) return; count = camel_folder_summary_count (destination->summary); /* Now copy the messages */ do_copy (source, uids, destination, ex); if (camel_exception_is_set (ex)) return; /* Make the destination notice its new messages */ if (store->current_folder != destination || camel_folder_summary_count (destination->summary) == count) camel_folder_refresh_info (destination, ex); if (delete_originals) { for (i = 0; i < uids->len; i++) camel_folder_delete_message (source, uids->pdata[i]); } } static void imap_transfer_resyncing (CamelFolder *source, GPtrArray *uids, CamelFolder *destination, gboolean delete_originals, CamelException *ex) { CamelDiscoDiary *diary = CAMEL_DISCO_STORE (source->parent_store)->diary; GPtrArray *realuids; int first, i; const char *uid; CamelMimeMessage *message; CamelMessageInfo *info; /* This is trickier than append_resyncing, because some of * the messages we are copying may have been copied or * appended into @source while we were offline, in which case * if we don't have UIDPLUS, we won't know their real UIDs, * so we'll have to append them rather than copying. */ realuids = g_ptr_array_new (); i = 0; while (i < uids->len) { /* Skip past real UIDs */ for (first = i; i < uids->len; i++) { uid = uids->pdata[i]; if (!isdigit ((unsigned char)*uid)) { uid = camel_disco_diary_uidmap_lookup (diary, uid); if (!uid) break; } g_ptr_array_add (realuids, (char *)uid); if (delete_originals) camel_folder_delete_message (source, uid); } /* If we saw any real UIDs, do a COPY */ if (i != first) { do_copy (source, realuids, destination, ex); g_ptr_array_set_size (realuids, 0); if (i == uids->len || camel_exception_is_set (ex)) break; } /* Deal with fake UIDs */ while (i < uids->len && !isdigit (*(unsigned char *)(uids->pdata[i])) && !camel_exception_is_set (ex)) { uid = uids->pdata[i]; message = camel_folder_get_message (source, uid, NULL); if (!message) { /* Message must have been expunged */ continue; } info = camel_folder_get_message_info (source, uid); g_return_if_fail (info != NULL); imap_append_online (destination, message, info, ex); camel_folder_free_message_info (source, info); camel_object_unref (CAMEL_OBJECT (message)); if (delete_originals) camel_folder_delete_message (source, uid); i++; } } g_ptr_array_free (realuids, FALSE); } static GPtrArray * imap_search_by_expression (CamelFolder *folder, const char *expression, CamelException *ex) { CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder); GPtrArray *matches, *summary; /* we could get around this by creating a new search object each time, but i doubt its worth it since any long operation would lock the command channel too */ CAMEL_IMAP_FOLDER_LOCK(folder, search_lock); camel_folder_search_set_folder (imap_folder->search, folder); summary = camel_folder_get_summary(folder); camel_folder_search_set_summary(imap_folder->search, summary); matches = camel_folder_search_execute_expression (imap_folder->search, expression, ex); CAMEL_IMAP_FOLDER_UNLOCK(folder, search_lock); camel_folder_free_summary(folder, summary); return matches; } static GPtrArray * imap_search_by_uids(CamelFolder *folder, const char *expression, GPtrArray *uids, CamelException *ex) { CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER(folder); GPtrArray *summary, *matches; int i; /* NOTE: could get away without the search lock by creating a new search object each time */ summary = g_ptr_array_new(); for (i=0;ilen;i++) { CamelMessageInfo *info; info = camel_folder_get_message_info(folder, uids->pdata[i]); if (info) g_ptr_array_add(summary, info); } if (summary->len == 0) return summary; CAMEL_IMAP_FOLDER_LOCK(folder, search_lock); camel_folder_search_set_folder(imap_folder->search, folder); camel_folder_search_set_summary(imap_folder->search, summary); matches = camel_folder_search_execute_expression(imap_folder->search, expression, ex); CAMEL_IMAP_FOLDER_UNLOCK(folder, search_lock); for (i=0;ilen;i++) camel_folder_free_message_info(folder, summary->pdata[i]); g_ptr_array_free(summary, TRUE); return matches; } static void imap_search_free (CamelFolder *folder, GPtrArray *uids) { CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder); g_return_if_fail (imap_folder->search); CAMEL_IMAP_FOLDER_LOCK(folder, search_lock); camel_folder_search_free_result (imap_folder->search, uids); CAMEL_IMAP_FOLDER_UNLOCK(folder, search_lock); } static CamelMimeMessage *get_message (CamelImapFolder *imap_folder, const char *uid, const char *part_specifier, CamelMessageContentInfo *ci, CamelException *ex); /* Fetch the contents of the MIME part indicated by @ci, which is part * of message @uid in @folder. */ static CamelDataWrapper * get_content (CamelImapFolder *imap_folder, const char *uid, const char *part_spec, CamelMimePart *part, CamelMessageContentInfo *ci, CamelException *ex) { CamelDataWrapper *content = NULL; CamelStream *stream; char *child_spec; /* There are three cases: multipart, message/rfc822, and "other" */ if (header_content_type_is (ci->type, "multipart", "*")) { CamelMultipart *body_mp; int speclen, num; body_mp = camel_multipart_new (); camel_data_wrapper_set_mime_type_field ( CAMEL_DATA_WRAPPER (body_mp), ci->type); camel_multipart_set_boundary (body_mp, NULL); speclen = strlen (part_spec); child_spec = g_malloc (speclen + 15); memcpy (child_spec, part_spec, speclen); if (speclen > 0) child_spec[speclen++] = '.'; ci = ci->childs; num = 1; while (ci) { sprintf (child_spec + speclen, "%d.MIME", num++); stream = camel_imap_folder_fetch_data (imap_folder, uid, child_spec, FALSE, ex); if (stream) { int ret; part = camel_mime_part_new (); ret = camel_data_wrapper_construct_from_stream (CAMEL_DATA_WRAPPER (part), stream); camel_object_unref (CAMEL_OBJECT (stream)); if (ret == -1) { camel_object_unref (CAMEL_OBJECT (part)); camel_object_unref (CAMEL_OBJECT (body_mp)); g_free (child_spec); return NULL; } *(strchr (child_spec + speclen, '.')) = '\0'; content = get_content (imap_folder, uid, child_spec, part, ci, ex); } if (!stream || !content) { g_free (child_spec); camel_object_unref (CAMEL_OBJECT (body_mp)); return NULL; } camel_medium_set_content_object (CAMEL_MEDIUM (part), content); camel_object_unref (CAMEL_OBJECT (content)); camel_multipart_add_part (body_mp, part); camel_object_unref (CAMEL_OBJECT (part)); ci = ci->next; } g_free (child_spec); return (CamelDataWrapper *)body_mp; } else if (header_content_type_is (ci->type, "message", "rfc822")) { return (CamelDataWrapper *) get_message (imap_folder, uid, part_spec, ci->childs, ex); } else { if (!ci->parent || header_content_type_is (ci->parent->type, "message", "rfc822")) child_spec = g_strdup_printf ("%s%s1", part_spec, *part_spec ? "." : ""); else child_spec = g_strdup (part_spec); content = camel_imap_wrapper_new (imap_folder, ci->type, uid, child_spec, part); g_free (child_spec); return content; } } static CamelMimeMessage * get_message (CamelImapFolder *imap_folder, const char *uid, const char *part_spec, CamelMessageContentInfo *ci, CamelException *ex) { CamelImapStore *store = CAMEL_IMAP_STORE (CAMEL_FOLDER (imap_folder)->parent_store); CamelDataWrapper *content; CamelMimeMessage *msg; CamelStream *stream; char *section_text; int ret; section_text = g_strdup_printf ("%s%s%s", part_spec, *part_spec ? "." : "", store->server_level >= IMAP_LEVEL_IMAP4REV1 ? "HEADER" : "0"); stream = camel_imap_folder_fetch_data (imap_folder, uid, section_text, FALSE, ex); g_free (section_text); if (!stream) return NULL; msg = camel_mime_message_new (); ret = camel_data_wrapper_construct_from_stream (CAMEL_DATA_WRAPPER (msg), stream); camel_object_unref (CAMEL_OBJECT (stream)); if (ret == -1) { camel_object_unref (CAMEL_OBJECT (msg)); return NULL; } content = get_content (imap_folder, uid, part_spec, CAMEL_MIME_PART (msg), ci, ex); if (!content) { camel_object_unref (CAMEL_OBJECT (msg)); return NULL; } camel_medium_set_content_object (CAMEL_MEDIUM (msg), content); camel_object_unref (CAMEL_OBJECT (content)); return msg; } /* FIXME: I pulled this number out of my butt. */ #define IMAP_SMALL_BODY_SIZE 5120 static CamelMimeMessage * get_message_simple (CamelImapFolder *imap_folder, const char *uid, CamelStream *stream, CamelException *ex) { CamelMimeMessage *msg; CamelImapStore *imap_store = CAMEL_IMAP_STORE (CAMEL_FOLDER (imap_folder)->parent_store); int ret; if (!stream) { stream = camel_imap_folder_fetch_data (imap_folder, uid, "", FALSE, ex); if (!stream) return NULL; } msg = camel_mime_message_new (); ret = camel_data_wrapper_construct_from_stream (CAMEL_DATA_WRAPPER (msg), stream); camel_object_unref (CAMEL_OBJECT (stream)); if (ret == -1) { camel_object_unref (CAMEL_OBJECT (msg)); return NULL; } /* FIXME, this shouldn't be done this way. */ camel_medium_set_header (CAMEL_MEDIUM (msg), "X-Evolution-Source", imap_store->base_url); return msg; } static CamelMimeMessage * imap_get_message (CamelFolder *folder, const char *uid, CamelException *ex) { CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder); CamelImapStore *store = CAMEL_IMAP_STORE (folder->parent_store); CamelMessageInfo *mi; CamelMimeMessage *msg; CamelStream *stream = NULL; /* If the server doesn't support IMAP4rev1, or we already have * the whole thing cached, fetch it in one piece. */ if (store->server_level < IMAP_LEVEL_IMAP4REV1 || (stream = camel_imap_folder_fetch_data (imap_folder, uid, "", TRUE, NULL))) return get_message_simple (imap_folder, uid, stream, ex); mi = camel_folder_summary_uid (folder->summary, uid); g_return_val_if_fail (mi != NULL, NULL); /* If the message is small, fetch it in one piece. */ if (mi->size < IMAP_SMALL_BODY_SIZE) { camel_folder_summary_info_free (folder->summary, mi); return get_message_simple (imap_folder, uid, NULL, ex); } /* For larger messages, fetch the structure and build a message * with offline parts. (We check mi->content->type rather than * mi->content because camel_folder_summary_info_new always creates * an empty content struct.) */ if (!mi->content->type) { CamelImapResponse *response; GData *fetch_data = NULL; char *body, *found_uid; int i; if (camel_disco_store_status (CAMEL_DISCO_STORE (store)) == CAMEL_DISCO_STORE_OFFLINE) { camel_exception_set (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE, _("This message is not currently available")); return NULL; } response = camel_imap_command (store, folder, ex, "UID FETCH %s BODYSTRUCTURE", uid); if (!response) { camel_folder_summary_info_free (folder->summary, mi); return NULL; } for (i = 0, body = NULL; i < response->untagged->len; i++) { fetch_data = parse_fetch_response (imap_folder, response->untagged->pdata[i]); if (fetch_data) { found_uid = g_datalist_get_data (&fetch_data, "UID"); body = g_datalist_get_data (&fetch_data, "BODY"); if (found_uid && body && !strcmp (found_uid, uid)) break; g_datalist_clear (&fetch_data); fetch_data = NULL; body = NULL; } } if (body) imap_parse_body (&body, folder, mi->content); if (fetch_data) g_datalist_clear (&fetch_data); camel_imap_response_free (store, response); if (!mi->content->type) { /* FETCH returned OK, but we didn't parse a BODY * response. Courier will return invalid BODY * responses for invalidly MIMEd messages, so * fall back to fetching the entire thing and * let the mailer's "bad MIME" code handle it. */ camel_folder_summary_info_free (folder->summary, mi); return get_message_simple (imap_folder, uid, NULL, ex); } } msg = get_message (imap_folder, uid, "", mi->content, ex); /* FIXME, this shouldn't be done this way. */ camel_medium_set_header (CAMEL_MEDIUM (msg), "X-Evolution-Source", store->base_url); camel_folder_summary_info_free (folder->summary, mi); return msg; } static void imap_cache_message (CamelDiscoFolder *disco_folder, const char *uid, CamelException *ex) { CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (disco_folder); CamelStream *stream; stream = camel_imap_folder_fetch_data (imap_folder, uid, "", FALSE, ex); if (stream) camel_object_unref (CAMEL_OBJECT (stream)); } /* We pretend that a FLAGS or RFC822.SIZE response is always exactly * 20 bytes long, and a BODY[HEADERS] response is always 2000 bytes * long. Since we know how many of each kind of response we're * expecting, we can find the total (pretend) amount of server traffic * to expect and then count off the responses as we read them to update * the progress bar. */ #define IMAP_PRETEND_SIZEOF_FLAGS 20 #define IMAP_PRETEND_SIZEOF_SIZE 20 #define IMAP_PRETEND_SIZEOF_HEADERS 2000 static void add_message_from_data (CamelFolder *folder, GPtrArray *messages, int first, GData *data) { CamelMimeMessage *msg; CamelStream *stream; CamelMessageInfo *mi; int seq; seq = GPOINTER_TO_INT (g_datalist_get_data (&data, "SEQUENCE")); if (seq < first) return; stream = g_datalist_get_data (&data, "BODY_PART_STREAM"); if (!stream) return; if (seq - first >= messages->len) g_ptr_array_set_size (messages, seq - first + 1); msg = camel_mime_message_new (); if (camel_data_wrapper_construct_from_stream (CAMEL_DATA_WRAPPER (msg), stream) == -1) { camel_object_unref (CAMEL_OBJECT (msg)); return; } mi = camel_folder_summary_info_new_from_message (folder->summary, msg); camel_object_unref (CAMEL_OBJECT (msg)); messages->pdata[seq - first] = mi; } static void imap_update_summary (CamelFolder *folder, int exists, CamelFolderChangeInfo *changes, CamelException *ex) { CamelImapStore *store = CAMEL_IMAP_STORE (folder->parent_store); CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder); GPtrArray *fetch_data = NULL, *messages = NULL, *needheaders; guint32 flags, uidval, maxuid; int i, seq, first, size, got; CamelImapResponseType type; const char *header_spec; CamelMessageInfo *mi; CamelStream *stream; char *uid, *resp; GData *data; CAMEL_IMAP_STORE_ASSERT_LOCKED (store, command_lock); if (store->server_level >= IMAP_LEVEL_IMAP4REV1) header_spec = "HEADER"; else header_spec = "0"; /* Figure out if any of the new messages are already cached (which * may be the case if we're re-syncing after disconnected operation). * If so, get their UIDs, FLAGS, and SIZEs. If not, get all that * and ask for the headers too at the same time. */ seq = camel_folder_summary_count (folder->summary); first = seq + 1; if (seq > 0) { mi = camel_folder_summary_index (folder->summary, seq - 1); uidval = atoi (camel_message_info_uid (mi)); camel_folder_summary_info_free (folder->summary, mi); } else uidval = 0; size = (exists - seq) * (IMAP_PRETEND_SIZEOF_FLAGS + IMAP_PRETEND_SIZEOF_SIZE); got = 0; maxuid = camel_imap_message_cache_max_uid (imap_folder->cache); if (uidval >= maxuid) { /* None of the new messages are cached */ size += (exists - seq) * IMAP_PRETEND_SIZEOF_HEADERS; if (!camel_imap_command_start (store, folder, ex, "UID FETCH %d:* (FLAGS RFC822.SIZE BODY.PEEK[%s])", maxuid + 1, header_spec)) return; camel_operation_start (NULL, _("Fetching summary information for new messages")); } else { if (!camel_imap_command_start (store, folder, ex, "UID FETCH %d:* (FLAGS RFC822.SIZE)", uidval + 1)) return; camel_operation_start (NULL, _("Scanning for new messages")); } /* Parse the responses. We can't add a message to the summary * until we've gotten its headers, and there's no guarantee * the server will send the responses in a useful order... */ fetch_data = g_ptr_array_new (); messages = g_ptr_array_new (); while ((type = camel_imap_command_response (store, &resp, ex)) == CAMEL_IMAP_RESPONSE_UNTAGGED) { data = parse_fetch_response (imap_folder, resp); g_free (resp); if (!data) continue; seq = GPOINTER_TO_INT (g_datalist_get_data (&data, "SEQUENCE")); if (seq < first) { g_datalist_clear (&data); continue; } if (g_datalist_get_data (&data, "FLAGS")) got += IMAP_PRETEND_SIZEOF_FLAGS; if (g_datalist_get_data (&data, "RFC822.SIZE")) got += IMAP_PRETEND_SIZEOF_SIZE; stream = g_datalist_get_data (&data, "BODY_PART_STREAM"); if (stream) { got += IMAP_PRETEND_SIZEOF_HEADERS; /* Use the stream now so we don't tie up many * many fds if we're fetching many many messages. */ add_message_from_data (folder, messages, first, data); g_datalist_set_data (&data, "BODY_PART_STREAM", NULL); } camel_operation_progress (NULL, got * 100 / size); g_ptr_array_add (fetch_data, data); } camel_operation_end (NULL); if (type == CAMEL_IMAP_RESPONSE_ERROR) goto lose; /* Figure out which headers we still need to fetch. */ needheaders = g_ptr_array_new (); size = got = 0; for (i = 0; i < fetch_data->len; i++) { data = fetch_data->pdata[i]; if (g_datalist_get_data (&data, "BODY_PART_LEN")) continue; uid = g_datalist_get_data (&data, "UID"); if (uid) { g_ptr_array_add (needheaders, uid); size += IMAP_PRETEND_SIZEOF_HEADERS; } } /* And fetch them */ if (needheaders->len) { char *uidset; int uid = 0; qsort (needheaders->pdata, needheaders->len, sizeof (void *), uid_compar); camel_operation_start (NULL, _("Fetching summary information for new messages")); while (uid < needheaders->len) { uidset = imap_uid_array_to_set (folder->summary, needheaders, uid, UID_SET_LIMIT, &uid); if (!camel_imap_command_start (store, folder, ex, "UID FETCH %s BODY.PEEK[%s]", uidset, header_spec)) { g_ptr_array_free (needheaders, TRUE); camel_operation_end (NULL); g_free (uidset); goto lose; } g_free (uidset); while ((type = camel_imap_command_response (store, &resp, ex)) == CAMEL_IMAP_RESPONSE_UNTAGGED) { data = parse_fetch_response (imap_folder, resp); g_free (resp); if (!data) continue; stream = g_datalist_get_data (&data, "BODY_PART_STREAM"); if (stream) { add_message_from_data (folder, messages, first, data); got += IMAP_PRETEND_SIZEOF_HEADERS; camel_operation_progress (NULL, got * 100 / size); } g_datalist_clear (&data); } if (type == CAMEL_IMAP_RESPONSE_ERROR) { g_ptr_array_free (needheaders, TRUE); camel_operation_end (NULL); goto lose; } } g_ptr_array_free (needheaders, TRUE); camel_operation_end (NULL); } /* Now finish up summary entries (fix UIDs, set flags and size) */ for (i = 0; i < fetch_data->len; i++) { data = fetch_data->pdata[i]; seq = GPOINTER_TO_INT (g_datalist_get_data (&data, "SEQUENCE")); if (seq >= first + messages->len) { g_datalist_clear (&data); continue; } mi = messages->pdata[seq - first]; if (mi == NULL) { CamelMessageInfo *pmi = NULL; int j; /* This is a kludge around a bug in Exchange * 5.5 that sometimes claims multiple messages * have the same UID. See bug #17694 for * details. The "solution" is to create a fake * message-info with the same details as the * previously valid message. Yes, the user * will have a clone in his/her message-list, * but at least we don't crash. */ /* find the previous valid message info */ for (j = seq - first - 1; j >= 0; j--) { pmi = messages->pdata[j]; if (pmi != NULL) break; } if (pmi == NULL) { /* Server response is *really* fucked up, I guess we just pretend it never happened? */ continue; } mi = camel_message_info_new (); camel_message_info_dup_to (pmi, mi); } uid = g_datalist_get_data (&data, "UID"); if (uid) camel_message_info_set_uid (mi, g_strdup (uid)); flags = GPOINTER_TO_INT (g_datalist_get_data (&data, "FLAGS")); if (flags) { ((CamelImapMessageInfo *)mi)->server_flags = flags; /* "or" them in with the existing flags that may * have been set by summary_info_new_from_message. */ mi->flags |= flags; } size = GPOINTER_TO_INT (g_datalist_get_data (&data, "RFC822.SIZE")); if (size) mi->size = size; g_datalist_clear (&data); } g_ptr_array_free (fetch_data, TRUE); /* And add the entries to the summary, etc. */ for (i = 0; i < messages->len; i++) { mi = messages->pdata[i]; if (!mi) { g_warning ("No information for message %d", i + first); continue; } camel_folder_summary_add (folder->summary, mi); camel_folder_change_info_add_uid (changes, camel_message_info_uid (mi)); if ((mi->flags & CAMEL_IMAP_MESSAGE_RECENT)) camel_folder_change_info_recent_uid(changes, camel_message_info_uid (mi)); } g_ptr_array_free (messages, TRUE); /* Kludge around Microsoft Exchange 5.5 IMAP - See bug #5348 for details */ if (camel_folder_summary_count (folder->summary) != exists) { CamelImapStore *imap_store = (CamelImapStore *) folder->parent_store; CamelImapResponse *response; /* forget the currently selected folder */ if (imap_store->current_folder) { camel_object_unref (CAMEL_OBJECT (imap_store->current_folder)); imap_store->current_folder = NULL; } /* now re-select it and process the EXISTS response */ response = camel_imap_command (imap_store, folder, ex, NULL); camel_imap_response_free (imap_store, response); } return; lose: if (fetch_data) { for (i = 0; i < fetch_data->len; i++) { data = fetch_data->pdata[i]; g_datalist_clear (&data); } g_ptr_array_free (fetch_data, TRUE); } if (messages) { for (i = 0; i < messages->len; i++) { if (messages->pdata[i]) camel_folder_summary_info_free (folder->summary, messages->pdata[i]); } g_ptr_array_free (messages, TRUE); } } /* Called with the store's command_lock locked */ void camel_imap_folder_changed (CamelFolder *folder, int exists, GArray *expunged, CamelException *ex) { CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder); CamelFolderChangeInfo *changes; CamelMessageInfo *info; int len; CAMEL_IMAP_STORE_ASSERT_LOCKED (folder->parent_store, command_lock); changes = camel_folder_change_info_new (); if (expunged) { int i, id; for (i = 0; i < expunged->len; i++) { id = g_array_index (expunged, int, i); info = camel_folder_summary_index (folder->summary, id - 1); if (info == NULL) { /* FIXME: danw: does this mean that the summary is corrupt? */ /* I guess a message that we never retrieved got expunged? */ continue; } camel_folder_change_info_remove_uid (changes, camel_message_info_uid (info)); CAMEL_IMAP_FOLDER_LOCK (imap_folder, cache_lock); camel_imap_message_cache_remove (imap_folder->cache, camel_message_info_uid (info)); CAMEL_IMAP_FOLDER_UNLOCK (imap_folder, cache_lock); camel_folder_summary_remove (folder->summary, info); camel_folder_summary_info_free(folder->summary, info); } } len = camel_folder_summary_count (folder->summary); if (exists > len) imap_update_summary (folder, exists, changes, ex); if (camel_folder_change_info_changed (changes)) camel_object_trigger_event (CAMEL_OBJECT (folder), "folder_changed", changes); camel_folder_change_info_free (changes); camel_folder_summary_save (folder->summary); } static void imap_thaw (CamelFolder *folder) { CamelImapFolder *imap_folder; CAMEL_FOLDER_CLASS (disco_folder_class)->thaw (folder); if (camel_folder_is_frozen (folder)) return; imap_folder = CAMEL_IMAP_FOLDER (folder); if (imap_folder->need_refresh) { imap_folder->need_refresh = FALSE; imap_refresh_info (folder, NULL); } } CamelStream * camel_imap_folder_fetch_data (CamelImapFolder *imap_folder, const char *uid, const char *section_text, gboolean cache_only, CamelException *ex) { CamelFolder *folder = CAMEL_FOLDER (imap_folder); CamelImapStore *store = CAMEL_IMAP_STORE (folder->parent_store); CamelImapResponse *response; CamelStream *stream; GData *fetch_data; char *found_uid; int i; /* EXPUNGE responses have to modify the cache, which means * they have to grab the cache_lock while holding the * command_lock. So we grab the command_lock now, in case * we're going to need it below, since we can't grab it * after the cache_lock. */ CAMEL_IMAP_STORE_LOCK (store, command_lock); CAMEL_IMAP_FOLDER_LOCK (imap_folder, cache_lock); stream = camel_imap_message_cache_get (imap_folder->cache, uid, section_text); if (!stream && (!strcmp (section_text, "HEADER") || !strcmp (section_text, "0"))) stream = camel_imap_message_cache_get (imap_folder->cache, uid, ""); if (stream || cache_only) { CAMEL_IMAP_FOLDER_UNLOCK (imap_folder, cache_lock); CAMEL_IMAP_STORE_UNLOCK (store, command_lock); return stream; } if (camel_disco_store_status (CAMEL_DISCO_STORE (store)) == CAMEL_DISCO_STORE_OFFLINE) { camel_exception_set (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE, _("This message is not currently available")); CAMEL_IMAP_FOLDER_UNLOCK (imap_folder, cache_lock); CAMEL_IMAP_STORE_UNLOCK (store, command_lock); return NULL; } if (store->server_level < IMAP_LEVEL_IMAP4REV1 && !*section_text) { response = camel_imap_command (store, folder, ex, "UID FETCH %s RFC822.PEEK", uid); } else { response = camel_imap_command (store, folder, ex, "UID FETCH %s BODY.PEEK[%s]", uid, section_text); } /* We won't need the command_lock again after this. */ CAMEL_IMAP_STORE_UNLOCK (store, command_lock); if (!response) { CAMEL_IMAP_FOLDER_UNLOCK (imap_folder, cache_lock); return NULL; } for (i = 0; i < response->untagged->len; i++) { fetch_data = parse_fetch_response (imap_folder, response->untagged->pdata[i]); found_uid = g_datalist_get_data (&fetch_data, "UID"); stream = g_datalist_get_data (&fetch_data, "BODY_PART_STREAM"); if (found_uid && stream && !strcmp (uid, found_uid)) break; g_datalist_clear (&fetch_data); stream = NULL; } camel_imap_response_free (store, response); CAMEL_IMAP_FOLDER_UNLOCK (imap_folder, cache_lock); if (!stream) { camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE, _("Could not find message body in FETCH " "response.")); } else { camel_object_ref (CAMEL_OBJECT (stream)); g_datalist_clear (&fetch_data); } return stream; } GData * parse_fetch_response (CamelImapFolder *imap_folder, char *response) { GData *data = NULL; char *start, *part_spec = NULL, *body = NULL, *uid = NULL; int body_len = 0; if (*response != '(') { long seq; if (*response != '*' || *(response + 1) != ' ') return NULL; seq = strtol (response + 2, &response, 10); if (seq == 0) return NULL; if (g_strncasecmp (response, " FETCH (", 8) != 0) return NULL; response += 7; g_datalist_set_data (&data, "SEQUENCE", GINT_TO_POINTER (seq)); } do { /* Skip the initial '(' or the ' ' between elements */ response++; if (!g_strncasecmp (response, "FLAGS ", 6)) { guint32 flags; response += 6; /* FIXME user flags */ flags = imap_parse_flag_list (&response); g_datalist_set_data (&data, "FLAGS", GUINT_TO_POINTER (flags)); } else if (!g_strncasecmp (response, "RFC822.SIZE ", 12)) { unsigned long size; response += 12; size = strtoul (response, &response, 10); g_datalist_set_data (&data, "RFC822.SIZE", GUINT_TO_POINTER (size)); } else if (!g_strncasecmp (response, "BODY[", 5) || !g_strncasecmp (response, "RFC822 ", 7)) { char *p; if (*response == 'B') { response += 5; p = strchr (response, ']'); if (!p || *(p + 1) != ' ') break; part_spec = g_strndup (response, p - response); response = p + 2; } else { part_spec = g_strdup (""); response += 7; } body = imap_parse_nstring (&response, &body_len); if (!response) { g_free (part_spec); break; } if (!body) body = g_strdup (""); g_datalist_set_data_full (&data, "BODY_PART_SPEC", part_spec, g_free); g_datalist_set_data_full (&data, "BODY_PART_DATA", body, g_free); g_datalist_set_data (&data, "BODY_PART_LEN", GINT_TO_POINTER (body_len)); } else if (!g_strncasecmp (response, "BODY ", 5) || !g_strncasecmp (response, "BODYSTRUCTURE ", 14)) { response = strchr (response, ' ') + 1; start = response; imap_skip_list (&response); g_datalist_set_data_full (&data, "BODY", g_strndup (start, response - start), g_free); } else if (!g_strncasecmp (response, "UID ", 4)) { int len; len = strcspn (response + 4, " )"); uid = g_strndup (response + 4, len); g_datalist_set_data_full (&data, "UID", uid, g_free); response += 4 + len; } else { g_warning ("Unexpected FETCH response from server: " "(%s", response); break; } } while (response && *response != ')'); if (!response || *response != ')') { g_datalist_clear (&data); return NULL; } if (uid && body) { CamelStream *stream; CAMEL_IMAP_FOLDER_LOCK (imap_folder, cache_lock); stream = camel_imap_message_cache_insert (imap_folder->cache, uid, part_spec, body, body_len, NULL); CAMEL_IMAP_FOLDER_UNLOCK (imap_folder, cache_lock); g_datalist_set_data_full (&data, "BODY_PART_STREAM", stream, (GDestroyNotify)camel_object_unref); } return data; }