/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; fill-column: 160 -*- */
/* camel-imap-folder.c: Abstract class for an imap folder */
/*
* Authors: Jeffrey Stedfast <fejj@helixcode.com>
*
* Copyright (C) 2000 Helix Code, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include <config.h>
#include <stdlib.h>
#include <sys/types.h>
#include <dirent.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <e-util/e-util.h>
#include "camel-imap-folder.h"
#include "camel-imap-store.h"
#include "camel-imap-stream.h"
#include "camel-imap-utils.h"
#include "string-utils.h"
#include "camel-stream.h"
#include "camel-stream-fs.h"
#include "camel-stream-mem.h"
#include "camel-stream-buffer.h"
#include "camel-data-wrapper.h"
#include "camel-mime-message.h"
#include "camel-stream-filter.h"
#include "camel-mime-filter-from.h"
#include "camel-mime-filter-crlf.h"
#include "camel-exception.h"
#include "camel-mime-utils.h"
#define d(x) x
#define CF_CLASS(o) (CAMEL_FOLDER_CLASS (CAMEL_OBJECT_GET_CLASS(o)))
static CamelFolderClass *parent_class = NULL;
static void imap_init (CamelFolder *folder, CamelStore *parent_store,
CamelFolder *parent_folder, const gchar *name,
gchar *separator, gboolean path_begns_with_sep,
CamelException *ex);
static void imap_finalize (CamelObject *object);
static void imap_refresh_info (CamelFolder *folder, CamelException *ex);
static void imap_sync (CamelFolder *folder, gboolean expunge, CamelException *ex);
static void imap_expunge (CamelFolder *folder, CamelException *ex);
/* message counts */
static gint imap_get_message_count_internal (CamelFolder *folder, CamelException *ex);
static gint imap_get_message_count (CamelFolder *folder);
static gint imap_get_unread_message_count (CamelFolder *folder);
/* message manipulation */
static CamelMimeMessage *imap_get_message (CamelFolder *folder, const gchar *uid,
CamelException *ex);
static void imap_append_message (CamelFolder *folder, CamelMimeMessage *message,
const CamelMessageInfo *info, CamelException *ex);
static void imap_copy_message_to (CamelFolder *source, const char *uid,
CamelFolder *destination, CamelException *ex);
static void imap_move_message_to (CamelFolder *source, const char *uid,
CamelFolder *destination, CamelException *ex);
/* subfolder listing */
static GPtrArray *imap_get_subfolder_names_internal (CamelFolder *folder, CamelException *ex);
static GPtrArray *imap_get_subfolder_names (CamelFolder *folder);
/* summary info */
static GPtrArray *imap_get_uids (CamelFolder *folder);
static GPtrArray *imap_get_summary_internal (CamelFolder *folder, CamelException *ex);
static GPtrArray *imap_get_summary (CamelFolder *folder);
static const CamelMessageInfo *imap_get_message_info (CamelFolder *folder, const char *uid);
/* searching */
static GPtrArray *imap_search_by_expression (CamelFolder *folder, const char *expression, CamelException *ex);
/* flag methods */
/*static guint32 imap_get_permanent_flags (CamelFolder *folder, CamelException *ex);*/
static guint32 imap_get_message_flags (CamelFolder *folder, const char *uid);
static void imap_set_message_flags (CamelFolder *folder, const char *uid, guint32 flags, guint32 set);
static gboolean imap_get_message_user_flag (CamelFolder *folder, const char *uid, const char *name);
static void imap_set_message_user_flag (CamelFolder *folder, const char *uid, const char *name,
gboolean value);
static void
camel_imap_folder_class_init (CamelImapFolderClass *camel_imap_folder_class)
{
CamelFolderClass *camel_folder_class = CAMEL_FOLDER_CLASS (camel_imap_folder_class);
parent_class = CAMEL_FOLDER_CLASS(camel_type_get_global_classfuncs (camel_folder_get_type ()));
/* virtual method definition */
/* virtual method overload */
camel_folder_class->init = imap_init;
camel_folder_class->refresh_info = imap_refresh_info;
camel_folder_class->sync = imap_sync;
camel_folder_class->expunge = imap_expunge;
camel_folder_class->get_uids = imap_get_uids;
camel_folder_class->free_uids = camel_folder_free_nop;
camel_folder_class->get_subfolder_names = imap_get_subfolder_names;
camel_folder_class->free_subfolder_names = camel_folder_free_nop;
camel_folder_class->get_message_count = imap_get_message_count;
camel_folder_class->get_unread_message_count = imap_get_unread_message_count;
camel_folder_class->get_message = imap_get_message;
camel_folder_class->append_message = imap_append_message;
camel_folder_class->copy_message_to = imap_copy_message_to;
camel_folder_class->move_message_to = imap_move_message_to;
camel_folder_class->get_summary = imap_get_summary;
camel_folder_class->get_message_info = imap_get_message_info;
camel_folder_class->free_summary = camel_folder_free_nop;
camel_folder_class->search_by_expression = imap_search_by_expression;
/*camel_folder_class->get_permanent_flags = imap_get_permanent_flags;*/
camel_folder_class->get_message_flags = imap_get_message_flags;
camel_folder_class->set_message_flags = imap_set_message_flags;
camel_folder_class->get_message_user_flag = imap_get_message_user_flag;
camel_folder_class->set_message_user_flag = imap_set_message_user_flag;
}
static void
camel_imap_folder_init (gpointer object, gpointer klass)
{
CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (object);
CamelFolder *folder = CAMEL_FOLDER (object);
folder->can_hold_messages = TRUE;
folder->can_hold_folders = TRUE;
folder->has_summary_capability = TRUE;
folder->has_search_capability = TRUE;
imap_folder->summary = NULL;
imap_folder->summary_hash = NULL;
imap_folder->lsub = NULL;
}
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_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, char *folder_name, CamelException *ex)
{
CamelFolder *folder = CAMEL_FOLDER (camel_object_new (camel_imap_folder_get_type ()));
CamelURL *url = CAMEL_SERVICE (parent)->url;
char *dir_sep;
dir_sep = CAMEL_IMAP_STORE (parent)->dir_sep;
CF_CLASS (folder)->init (folder, parent, NULL, folder_name, dir_sep, FALSE, ex);
if (camel_exception_is_set (ex)) {
camel_object_unref (CAMEL_OBJECT (folder));
return NULL;
}
if (!strcmp (folder_name, url->path + 1))
folder->can_hold_messages = FALSE;
if (camel_exception_is_set (ex)) {
camel_object_unref (CAMEL_OBJECT (folder));
return NULL;
}
return folder;
}
static void
imap_summary_free (GPtrArray **summary)
{
CamelMessageInfo *info;
GPtrArray *array = *summary;
gint i, max;
if (array) {
max = array->len;
for (i = 0; i < max; i++) {
info = g_ptr_array_index (array, i);
g_free (info->subject);
g_free (info->from);
g_free (info->to);
g_free (info->cc);
g_free (info->uid);
g_free (info->message_id);
header_references_list_clear (&info->references);
g_free (info);
info = NULL;
}
g_ptr_array_free (array, TRUE);
*summary = NULL;
}
}
static void
imap_folder_summary_free (CamelImapFolder *imap_folder)
{
if (imap_folder->summary_hash) {
g_hash_table_destroy (imap_folder->summary_hash);
imap_folder->summary_hash = NULL;
}
imap_summary_free (&imap_folder->summary);
}
static void
imap_finalize (CamelObject *object)
{
CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (object);
gint max, i;
imap_folder_summary_free (imap_folder);
if (imap_folder->lsub) {
max = imap_folder->lsub->len;
for (i = 0; i < max; i++) {
g_free (imap_folder->lsub->pdata[i]);
imap_folder->lsub->pdata[i] = NULL;
}
g_ptr_array_free (imap_folder->lsub, TRUE);
}
}
static void
imap_init (CamelFolder *folder, CamelStore *parent_store, CamelFolder *parent_folder,
const gchar *name, gchar *separator, gboolean path_begins_with_sep, CamelException *ex)
{
CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder);
/* call parent method */
parent_class->init (folder, parent_store, parent_folder, name, separator, path_begins_with_sep, ex);
if (camel_exception_get_id (ex))
return;
/* we assume that the parent init
method checks for the existance of @folder */
folder->can_hold_messages = TRUE;
folder->can_hold_folders = TRUE;
folder->has_summary_capability = TRUE;
folder->has_search_capability = TRUE;
/* some IMAP daemons support user-flags *
* I would not, however, rely on this feature as *
* most IMAP daemons do not support all the features */
folder->permanent_flags = CAMEL_MESSAGE_SEEN |
CAMEL_MESSAGE_ANSWERED |
CAMEL_MESSAGE_FLAGGED |
CAMEL_MESSAGE_DELETED |
CAMEL_MESSAGE_DRAFT |
CAMEL_MESSAGE_USER;
imap_folder->search = NULL;
imap_folder->summary = NULL;
imap_folder->summary_hash = NULL;
imap_folder->lsub = NULL;
}
static void
imap_refresh_info (CamelFolder *folder, CamelException *ex)
{
imap_get_subfolder_names_internal (folder, ex);
if (folder->can_hold_messages)
imap_get_summary_internal (folder, ex);
}
static void
imap_sync (CamelFolder *folder, gboolean expunge, CamelException *ex)
{
CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder);
gint i, max;
if (expunge) {
imap_expunge (folder, ex);
return;
}
/* Set the flags on any messages that have changed this session */
if (imap_folder->summary) {
max = imap_folder->summary->len;
for (i = 0; i < max; i++) {
CamelMessageInfo *info;
info = (CamelMessageInfo *) g_ptr_array_index (imap_folder->summary, i);
if (info->flags & CAMEL_MESSAGE_FOLDER_FLAGGED) {
char *flags;
flags = g_strconcat (info->flags & CAMEL_MESSAGE_SEEN ? "\\Seen " : "",
info->flags & CAMEL_MESSAGE_DRAFT ? "\\Draft " : "",
info->flags & CAMEL_MESSAGE_DELETED ? "\\Deleted " : "",
info->flags & CAMEL_MESSAGE_ANSWERED ? "\\Answered " : "",
NULL);
if (*flags) {
gchar *result;
gint s;
*(flags + strlen (flags) - 1) = '\0';
s = camel_imap_command_extended (CAMEL_IMAP_STORE (folder->parent_store),
folder, &result, ex,
"UID STORE %s FLAGS.SILENT (%s)",
info->uid, flags);
if (s != CAMEL_IMAP_OK)
return;
g_free (result);
}
g_free (flags);
}
}
}
}
static void
imap_expunge (CamelFolder *folder, CamelException *ex)
{
gchar *result;
gint status;
imap_sync (folder, FALSE, ex);
status = camel_imap_command_extended (CAMEL_IMAP_STORE (folder->parent_store), folder,
&result, ex, "EXPUNGE");
g_free (result);
}
static gint
imap_get_message_count_internal (CamelFolder *folder, CamelException *ex)
{
CamelStore *store = CAMEL_STORE (folder->parent_store);
CamelURL *url = CAMEL_SERVICE (store)->url;
gchar *result, *msg_count, *folder_path, *dir_sep;
gint status, count = 0;
g_return_val_if_fail (folder != NULL, 0);
g_return_val_if_fail (folder->can_hold_messages, 0);
dir_sep = CAMEL_IMAP_STORE (folder->parent_store)->dir_sep;
if (url && url->path && *(url->path + 1) && strcmp (folder->full_name, "INBOX"))
folder_path = g_strdup_printf ("%s%s%s", url->path + 1, dir_sep, folder->full_name);
else
folder_path = g_strdup (folder->full_name);
if (CAMEL_IMAP_STORE (store)->has_status_capability)
status = camel_imap_command_extended (CAMEL_IMAP_STORE (store), folder,
&result, ex, "STATUS %s (MESSAGES)", folder_path);
else
status = camel_imap_command_extended (CAMEL_IMAP_STORE (store), folder,
&result, ex, "EXAMINE %s", folder_path);
g_free (folder_path);
if (status != CAMEL_IMAP_OK)
return 0;
/* parse out the message count */
if (result && *result == '*') {
if (CAMEL_IMAP_STORE (store)->has_status_capability) {
/* should come in the form: "* STATUS <folder> (MESSAGES <count>)" */
if ((msg_count = strstr (result, "MESSAGES")) != NULL) {
msg_count = imap_next_word (msg_count);
/* we should now be pointing to the message count */
count = atoi (msg_count);
}
} else {
/* should come in the form: "* <count> EXISTS" */
if ((msg_count = strstr (result, "EXISTS")) != NULL) {
for ( ; msg_count > result && *msg_count != '*'; msg_count--);
msg_count = imap_next_word (msg_count);
/* we should now be pointing to the message count */
count = atoi (msg_count);
}
}
}
g_free (result);
return count;
}
static gint
imap_get_message_count (CamelFolder *folder)
{
CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder);
if (imap_folder->summary)
return imap_folder->summary->len;
else
return 0;
}
static gint
imap_get_unread_message_count (CamelFolder *folder)
{
CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder);
CamelMessageInfo *info;
GPtrArray *infolist;
gint i, count = 0;
g_return_val_if_fail (folder != NULL, 0);
/* If we don't have a message count, return 0 */
if (!imap_folder->summary)
return 0;
infolist = imap_folder->summary;
for (i = 0; i < infolist->len; i++) {
info = (CamelMessageInfo *) g_ptr_array_index (infolist, i);
if (!(info->flags & CAMEL_MESSAGE_SEEN))
count++;
}
return count;
}
static void
imap_append_message (CamelFolder *folder, CamelMimeMessage *message, const CamelMessageInfo *info, CamelException *ex)
{
CamelStore *store = CAMEL_STORE (folder->parent_store);
CamelURL *url = CAMEL_SERVICE (store)->url;
CamelStream *memstream;
GByteArray *ba;
gchar *result, *cmdid, *dir_sep;
gchar *folder_path, *flagstr = NULL;
gint status;
g_return_if_fail (folder != NULL);
g_return_if_fail (message != NULL);
dir_sep = CAMEL_IMAP_STORE (folder->parent_store)->dir_sep;
if (url && url->path && *(url->path + 1) && strcmp (folder->full_name, "INBOX"))
folder_path = g_strdup_printf ("%s%s%s", url->path + 1, dir_sep, folder->full_name);
else
folder_path = g_strdup (folder->full_name);
/* create flag string param */
if (info && info->flags) {
flagstr = g_strconcat (" (", info->flags & CAMEL_MESSAGE_SEEN ? "\\Seen " : "",
info->flags & CAMEL_MESSAGE_DRAFT ? "\\Draft " : "",
info->flags & CAMEL_MESSAGE_DELETED ? "\\Answered " : "",
NULL);
if (flagstr)
*(flagstr + strlen (flagstr) - 1) = ')';
}
ba = g_byte_array_new ();
memstream = camel_stream_mem_new_with_byte_array (ba);
/* FIXME: we need to crlf/dot filter */
camel_data_wrapper_write_to_stream (CAMEL_DATA_WRAPPER (message), memstream);
camel_stream_write_string (memstream, "\r\n");
camel_stream_reset (memstream);
status = camel_imap_command_preliminary (CAMEL_IMAP_STORE (folder->parent_store),
&cmdid, ex, "APPEND %s%s {%d}",
folder_path, flagstr ? flagstr : "", ba->len - 2);
g_free (folder_path);
if (status != CAMEL_IMAP_PLUS) {
g_free (cmdid);
return;
}
/* send the rest of our data - the mime message */
status = camel_imap_command_continuation_with_stream (CAMEL_IMAP_STORE (folder->parent_store),
&result, cmdid, memstream, ex);
g_free (cmdid);
if (status != CAMEL_IMAP_OK)
return;
g_free (result);
camel_object_unref (CAMEL_OBJECT (memstream));
camel_imap_folder_changed (folder, 1, NULL, ex);
}
static void
imap_copy_message_to (CamelFolder *source, const char *uid, CamelFolder *destination, CamelException *ex)
{
CamelStore *store = CAMEL_STORE (source->parent_store);
CamelURL *url = CAMEL_SERVICE (store)->url;
char *result, *folder_path, *dir_sep;
int status;
dir_sep = CAMEL_IMAP_STORE (source->parent_store)->dir_sep;
if (url && url->path && *(url->path + 1) && strcmp (destination->full_name, "INBOX"))
folder_path = g_strdup_printf ("%s%s%s", url->path + 1, dir_sep, destination->full_name);
else
folder_path = g_strdup (destination->full_name);
status = camel_imap_command_extended (CAMEL_IMAP_STORE (store), source, &result, ex,
"UID COPY %s %s", uid, folder_path);
g_free (folder_path);
if (status != CAMEL_IMAP_OK)
return;
g_free (result);
camel_imap_folder_changed (destination, 1, NULL, ex);
}
/* FIXME: Duplication of code! */
static void
imap_move_message_to (CamelFolder *source, const char *uid, CamelFolder *destination, CamelException *ex)
{
CamelStore *store = CAMEL_STORE (source->parent_store);
CamelURL *url = CAMEL_SERVICE (store)->url;
CamelMessageInfo *info;
char *result, *folder_path, *dir_sep;
int status;
dir_sep = CAMEL_IMAP_STORE (source->parent_store)->dir_sep;
if (url && url->path && *(url->path + 1) && strcmp (destination->full_name, "INBOX"))
folder_path = g_strdup_printf ("%s%s%s", url->path + 1, dir_sep, destination->full_name);
else
folder_path = g_strdup (destination->full_name);
status = camel_imap_command_extended (CAMEL_IMAP_STORE (store), source, &result, ex,
"UID COPY %s %s", uid, folder_path);
g_free (folder_path);
if (status != CAMEL_IMAP_OK)
return;
g_free (result);
if (!(info = (CamelMessageInfo *)imap_get_message_info (source, uid))) {
CamelService *service = CAMEL_SERVICE (store);
camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE,
"Could not set flags for message %s on IMAP server %s: %s",
uid, service->url->host, "Unknown error");
return;
}
imap_set_message_flags (source, uid, CAMEL_MESSAGE_DELETED, ~(info->flags));
camel_imap_folder_changed (destination, 1, NULL, ex);
}
static GPtrArray *
imap_get_uids (CamelFolder *folder)
{
CamelMessageInfo *info;
GPtrArray *array, *infolist;
gint i, count;
infolist = imap_get_summary (folder);
count = infolist ? infolist->len : 0;
array = g_ptr_array_new ();
g_ptr_array_set_size (array, count);
for (i = 0; i < count; i++) {
info = (CamelMessageInfo *) g_ptr_array_index (infolist, i);
array->pdata[i] = g_strdup (info->uid);
}
return array;
}
static GPtrArray *
imap_get_subfolder_names_internal (CamelFolder *folder, CamelException *ex)
{
CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder);
CamelStore *store = CAMEL_STORE (folder->parent_store);
CamelURL *url = CAMEL_SERVICE (store)->url;
GPtrArray *listing;
gboolean found_inbox = FALSE;
gint status;
gchar *result, *namespace, *dir_sep;
g_return_val_if_fail (folder != NULL, g_ptr_array_new ());
dir_sep = CAMEL_IMAP_STORE (folder->parent_store)->dir_sep;
if (url && url->path) {
char *path = url->path + 1;
if (*path) {
if (!strcmp (folder->full_name, path))
namespace = g_strdup (path);
else if (!g_strcasecmp (folder->full_name, "INBOX"))
namespace = g_strdup (path); /* FIXME: erm...not sure */
else
namespace = g_strdup_printf ("%s%s%s", path, dir_sep, folder->full_name);
} else {
if (!strcmp (folder->full_name, "/"))
namespace = g_strdup ("");
else
namespace = g_strdup (folder->full_name);
}
} else {
namespace = g_strdup (folder->full_name);
}
status = camel_imap_command_extended (CAMEL_IMAP_STORE (folder->parent_store), NULL,
&result, ex, "LIST \"\" \"%s%s*\"", namespace,
*namespace ? dir_sep : "");
if (status != CAMEL_IMAP_OK) {
g_free (namespace);
imap_folder->lsub = g_ptr_array_new ();
return imap_folder->lsub;
}
/* parse out the subfolders */
listing = g_ptr_array_new ();
if (result) {
char *ptr = result;
while (ptr && *ptr == '*') {
gchar *flags, *sep, *dir, *buf, *end;
for (end = ptr; *end && *end != '\n'; end++);
buf = g_strndup (ptr, (gint)(end - ptr));
ptr = end;
if (!imap_parse_list_response (buf, namespace, &flags, &sep, &dir)) {
g_free (buf);
g_free (flags);
g_free (sep);
g_free (dir);
if (*ptr == '\n')
ptr++;
continue;
}
g_free (buf);
g_free (flags);
if (*dir) {
d(fprintf (stderr, "adding folder: %s\n", dir));
if (!g_strcasecmp (dir, "INBOX"))
found_inbox = TRUE;
g_ptr_array_add (listing, dir);
}
g_free (sep);
if (*ptr == '\n')
ptr++;
}
}
if (!strcmp (folder->name, namespace) && !found_inbox) {
g_ptr_array_add (listing, g_strdup ("INBOX"));
}
g_free (result);
g_free (namespace);
imap_folder->lsub = listing;
return listing;
}
static GPtrArray *
imap_get_subfolder_names (CamelFolder *folder)
{
CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder);
return imap_folder->lsub;
}
static CamelMimeMessage *
imap_get_message (CamelFolder *folder, const gchar *uid, CamelException *ex)
{
CamelStream *msgstream = NULL;
CamelMimeMessage *msg = NULL;
gchar *result, *header, *body, *mesg, *p, *q, *data_item;
int status, part_len;
if (CAMEL_IMAP_STORE (folder->parent_store)->server_level >= IMAP_LEVEL_IMAP4REV1)
data_item = "BODY.PEEK[HEADER]";
else
data_item = "RFC822.HEADER";
status = camel_imap_fetch_command (CAMEL_IMAP_STORE (folder->parent_store), folder,
&result, ex, "UID FETCH %s %s", uid,
data_item);
if (!result || status != CAMEL_IMAP_OK)
return NULL;
/* parse out the message part */
for (p = result; *p && *p != '{' && *p != '"' && *p != '\n'; p++);
switch (*p) {
case '"':
/* a quoted string - section 4.3 */
p++;
for (q = p; *q && *q != '"' && *q != '\n'; q++);
part_len = (gint) (q - p);
break;
case '{':
/* a literal string - section 4.3 */
part_len = atoi (p + 1);
for ( ; *p && *p != '\n'; p++);
if (*p != '\n') {
g_free (result);
return NULL;
}
/* calculate the new part-length */
for (q = p; *q && (q - p) <= part_len; q++) {
if (*q == '\n')
part_len--;
}
/* FIXME: This is a hack for IMAP daemons that send us a UID at the end of each FETCH */
for ( ; q > p && *(q-1) != '\n'; q--, part_len--);
part_len++;
break;
default:
/* Bad input */
g_free (result);
return NULL;
}
header = g_strndup (p, part_len);
g_free (result);
d(fprintf (stderr, "*** We got the header ***\n"));
if (CAMEL_IMAP_STORE (folder->parent_store)->server_level >= IMAP_LEVEL_IMAP4REV1)
data_item = "BODY[TEXT]";
else
data_item = "RFC822.TEXT";
status = camel_imap_fetch_command (CAMEL_IMAP_STORE (folder->parent_store), folder,
&result, ex, "UID FETCH %s %s", uid,
data_item);
if (!result || status != CAMEL_IMAP_OK) {
g_free (header);
return NULL;
}
/* parse out the message part */
for (p = result; *p && *p != '{' && *p != '"' && *p != '\n'; p++);
switch (*p) {
case '"':
/* a quoted string - section 4.3 */
p++;
for (q = p; *q && *q != '"' && *q != '\n'; q++);
part_len = (gint) (q - p);
break;
case '{':
/* a literal string - section 4.3 */
part_len = atoi (p + 1);
for ( ; *p && *p != '\n'; p++);
if (*p != '\n') {
g_free (result);
g_free (header);
return NULL;
}
/* calculate the new part-length */
for (q = p; *q && (q - p) <= part_len; q++) {
if (*q == '\n')
part_len--;
}
/* FIXME: This is a hack for IMAP daemons that send us a UID at the end of each FETCH */
for ( ; q > p && *(q-1) != '\n'; q--, part_len--);
part_len++;
break;
default:
/* Bad input */
g_free (result);
g_free (header);
return NULL;
}
body = g_strndup (p, part_len);
g_free (result);
d(fprintf (stderr, "*** We got the body ***\n"));
mesg = g_strdup_printf ("%s\n%s", header, body);
g_free (header);
g_free (body);
d(fprintf (stderr, "*** We got the mesg ***\n"));
d(fprintf (stderr, "Message:\n%s\n", mesg));
msgstream = camel_stream_mem_new_with_buffer (mesg, strlen (mesg) + 1);
#if 0
f_stream = camel_stream_filter_new_with_stream (msgstream);
filter = camel_mime_filter_crlf_new (CAMEL_MIME_FILTER_CRLF_DECODE, CAMEL_MIME_FILTER_CRLF_MODE_CRLF_DOTS);
id = camel_stream_filter_add (f_stream, CAMEL_MIME_FILTER (filter));
#endif
msg = camel_mime_message_new ();
d(fprintf (stderr, "*** We created the camel_mime_message ***\n"));
camel_data_wrapper_construct_from_stream (CAMEL_DATA_WRAPPER (msg), msgstream);
#if 0
camel_stream_filter_remove (f_stream, id);
camel_stream_close (CAMEL_STREAM (f_stream));
#endif
camel_object_unref (CAMEL_OBJECT (msgstream));
/*camel_object_unref (CAMEL_OBJECT (f_stream));*/
d(fprintf (stderr, "*** We're returning... ***\n"));
g_free (mesg);
return msg;
}
/* This probably shouldn't go here...but it will for now */
static gchar *
get_header_field (gchar *header, gchar *field)
{
gchar *part, *index, *p, *q;
index = (char *) e_strstrcase (header, field);
if (index == NULL)
return NULL;
p = index + strlen (field) + 1;
for (q = p; *q; q++)
if (*q == '\n' && (*(q + 1) != ' ' && *(q + 1) != '\t'))
break;
part = g_strndup (p, (gint)(q - p));
/* it may be wrapped on multiple lines, so lets strip out \n's */
for (p = part; *p; ) {
if (*p == '\n')
memmove (p, p + 1, strlen (p));
else
p++;
}
return part;
}
static char *header_fields[] = { "subject", "from", "to", "cc", "date",
"received", "message-id", "references",
"in-reply-to", "" };
/**
* imap_protocol_get_summary_specifier
*
* Make a data item specifier for the header lines we need,
* appropriate to the server level.
*
* IMAP4rev1: UID FLAGS BODY.PEEK[HEADER.FIELDS (SUBJECT FROM .. IN-REPLY-TO)]
* IMAP4: UID FLAGS RFC822.HEADER.LINES (SUBJECT FROM .. IN-REPLY-TO)
**/
static char *
imap_protocol_get_summary_specifier (CamelFolder *folder)
{
char *sect_begin, *sect_end;
char *headers_wanted = "SUBJECT FROM TO CC DATE MESSAGE-ID REFERENCES IN-REPLY-TO";
if (CAMEL_IMAP_STORE (folder->parent_store)->server_level >= IMAP_LEVEL_IMAP4REV1) {
sect_begin = "BODY.PEEK[HEADER.FIELDS";
sect_end = "]";
} else {
sect_begin = "RFC822.HEADER.LINES";
sect_end = "";
}
return g_strdup_printf ("UID FLAGS %s (%s)%s", sect_begin, headers_wanted, sect_end);
}
static GPtrArray *
imap_get_summary_internal (CamelFolder *folder, CamelException *ex)
{
/* This ALWAYS updates the summary except on fail */
CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder);
GPtrArray *summary = NULL, *headers = NULL;
GHashTable *hash = NULL;
gint num, i, j, status = 0;
char *result, *q, *node;
const char *received;
char *summary_specifier;
struct _header_raw *h = NULL, *tail = NULL;
num = imap_get_message_count_internal (folder, ex);
/* sync any previously set/changed message flags */
imap_sync (folder, FALSE, ex);
if (num == 0) {
/* clean up any previous summary data */
imap_folder_summary_free (imap_folder);
imap_folder->summary = g_ptr_array_new ();
imap_folder->summary_hash = g_hash_table_new (g_str_hash, g_str_equal);
return imap_folder->summary;
}
summary_specifier = imap_protocol_get_summary_specifier (folder);
/* We use camel_imap_command_extended here because it's safe */
if (num == 1) {
status = camel_imap_command_extended (CAMEL_IMAP_STORE (folder->parent_store), folder,
&result, ex, "FETCH 1 (%s)", summary_specifier);
} else {
status = camel_imap_command_extended (CAMEL_IMAP_STORE (folder->parent_store), folder,
&result, ex, "FETCH 1:%d (%s)", num, summary_specifier);
}
g_free (summary_specifier);
if (status != CAMEL_IMAP_OK) {
if (!imap_folder->summary) {
imap_folder->summary = g_ptr_array_new ();
imap_folder->summary_hash = g_hash_table_new (g_str_hash, g_str_equal);
}
return imap_folder->summary;
}
/* initialize our new summary-to-be */
summary = g_ptr_array_new ();
hash = g_hash_table_new (g_str_hash, g_str_equal);
/* create our array of headers from the server response */
headers = g_ptr_array_new ();
node = result;
for (i = 1; node; i++) {
char *end;
if ((end = strstr (node + 2, "\n*"))) {
g_ptr_array_add (headers, g_strndup (node, (gint)(end - node)));
} else {
g_ptr_array_add (headers, g_strdup (node));
}
node = end;
}
if (i < num) {
d(fprintf (stderr, "IMAP server didn't respond with as many headers as we expected...\n"));
/* should we error?? */
}
g_free (result);
result = NULL;
for (i = 0; i < headers->len; i++) {
CamelMessageInfo *info;
char *uid, *flags, *header;
info = g_malloc0 (sizeof (CamelMessageInfo));
/* lets grab the UID... */
if (!(uid = strstr (headers->pdata[i], "UID "))) {
d(fprintf (stderr, "Cannot get a uid for %d\n\n%s\n\n", i+1, (char *) headers->pdata[i]));
g_free (info);
break;
}
for (uid += 4; *uid && (*uid < '0' || *uid > '9'); uid++); /* advance to <uid> */
for (q = uid; *q && *q >= '0' && *q <= '9'; q++); /* find the end of the <uid> */
info->uid = g_strndup (uid, (gint)(q - uid));
/*d(fprintf (stderr, "*** info->uid = %s\n", info->uid));*/
/* now lets grab the FLAGS */
if (!(flags = strstr (headers->pdata[i], "FLAGS "))) {
d(fprintf (stderr, "We didn't seem to get any flags for %d...\n", i));
g_free (info->uid);
g_free (info);
break;
}
for (flags += 6; *flags && *flags != '('; flags++); /* advance to <flags> */
for (q = flags; *q && *q != ')'; q++); /* find the end of <flags> */
flags = g_strndup (flags, (gint)(q - flags + 1));
/*d(fprintf (stderr, "*** info->flags = %s\n", flags));*/
/* now we gotta parse for the flags */
info->flags = 0;
if (strstr (flags, "\\Seen"))
info->flags |= CAMEL_MESSAGE_SEEN;
if (strstr (flags, "\\Answered"))
info->flags |= CAMEL_MESSAGE_ANSWERED;
if (strstr (flags, "\\Flagged"))
info->flags |= CAMEL_MESSAGE_FLAGGED;
if (strstr (flags, "\\Deleted"))
info->flags |= CAMEL_MESSAGE_DELETED;
if (strstr (flags, "\\Draft"))
info->flags |= CAMEL_MESSAGE_DRAFT;
g_free (flags);
flags = NULL;
/* construct the header list */
/* fast-forward to beginning of header info... */
for (header = headers->pdata[i]; *header && *header != '\n'; header++);
h = NULL;
for (j = 0; *header_fields[j]; j++) {
struct _header_raw *raw;
char *field, *value;
field = g_strdup_printf ("\n%s:", header_fields[j]);
value = get_header_field (header, field);
g_free (field);
if (!value)
continue;
raw = g_malloc0 (sizeof (struct _header_raw));
raw->next = NULL;
raw->name = g_strdup (header_fields[j]);
raw->value = value;
raw->offset = -1;
if (!h) {
h = raw;
tail = h;
} else {
tail->next = raw;
tail = raw;
}
}
/* construct the CamelMessageInfo */
info->subject = camel_summary_format_string (h, "subject");
info->from = camel_summary_format_address (h, "from");
info->to = camel_summary_format_address (h, "to");
info->cc = camel_summary_format_address (h, "cc");
info->user_flags = NULL;
info->date_sent = header_decode_date (header_raw_find (&h, "date", NULL), NULL);
received = header_raw_find (&h, "received", NULL);
if (received)
received = strrchr (received, ';');
if (received)
info->date_received = header_decode_date (received + 1, NULL);
else
info->date_received = 0;
info->message_id = header_msgid_decode (header_raw_find (&h, "message-id", NULL));
/* if we have a references, use that, otherwise, see if we have an in-reply-to
header, with parsable content, otherwise *shrug* */
info->references = header_references_decode (header_raw_find (&h, "references", NULL));
if (info->references == NULL)
info->references = header_references_decode (header_raw_find (&h, "in-reply-to", NULL));
while (h) {
struct _header_raw *next = h->next;
g_free (h->name);
g_free (h->value);
g_free (h);
h = next;
}
g_ptr_array_add (summary, info);
g_hash_table_insert (hash, info->uid, info);
}
for (i = 0; i < headers->len; i++)
g_free (headers->pdata[i]);
g_ptr_array_free (headers, TRUE);
/* clean up any previous summary data */
imap_folder_summary_free (imap_folder);
imap_folder->summary = summary;
imap_folder->summary_hash = hash;
return imap_folder->summary;
}
static GPtrArray *
imap_get_summary (CamelFolder *folder)
{
CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder);
return imap_folder->summary;
}
/* get a single message info from the server */
static CamelMessageInfo *
imap_get_message_info_internal (CamelFolder *folder, guint id, CamelException *ex)
{
CamelMessageInfo *info = NULL;
struct _header_raw *h, *tail = NULL;
const char *received;
char *result, *uid, *flags, *header, *q;
char *summary_specifier;
int j, status;
/* we don't have a cached copy, so fetch it */
summary_specifier = imap_protocol_get_summary_specifier (folder);
/* again, we use camel_imap_command_extended here because it's safe to do so */
status = camel_imap_command_extended (CAMEL_IMAP_STORE (folder->parent_store), folder,
&result, ex, "FETCH %d (%s)", id, summary_specifier);
g_free (summary_specifier);
if (status != CAMEL_IMAP_OK)
return NULL;
/* lets grab the UID... */
if (!(uid = (char *) e_strstrcase (result, "UID "))) {
d(fprintf (stderr, "Cannot get a uid for %d\n\n%s\n\n", id, result));
g_free (result);
return NULL;
}
for (uid += 4; *uid && (*uid < '0' || *uid > '9'); uid++); /* advance to <uid> */
for (q = uid; *q && *q >= '0' && *q <= '9'; q++); /* find the end of the <uid> */
uid = g_strndup (uid, (gint)(q - uid));
info = g_malloc0 (sizeof (CamelMessageInfo));
info->uid = uid;
d(fprintf (stderr, "*** info->uid = %s\n", info->uid));
/* now lets grab the FLAGS */
if (!(flags = strstr (q, "FLAGS "))) {
d(fprintf (stderr, "We didn't seem to get any flags for %s...\n", uid));
g_free (info->uid);
g_free (info);
g_free (result);
return NULL;
}
for (flags += 6; *flags && *flags != '('; flags++); /* advance to <flags> */
for (q = flags; *q && *q != ')'; q++); /* find the end of <flags> */
flags = g_strndup (flags, (gint)(q - flags + 1));
d(fprintf (stderr, "*** info->flags = %s\n", flags));
/* now we gotta parse for the flags */
info->flags = 0;
if (strstr (flags, "\\Seen"))
info->flags |= CAMEL_MESSAGE_SEEN;
if (strstr (flags, "\\Answered"))
info->flags |= CAMEL_MESSAGE_ANSWERED;
if (strstr (flags, "\\Flagged"))
info->flags |= CAMEL_MESSAGE_FLAGGED;
if (strstr (flags, "\\Deleted"))
info->flags |= CAMEL_MESSAGE_DELETED;
if (strstr (flags, "\\Draft"))
info->flags |= CAMEL_MESSAGE_DRAFT;
g_free (flags);
flags = NULL;
/* construct the header list */
/* fast-forward to beginning of header info... */
for (header = q; *header && *header != '\n'; header++);
h = NULL;
for (j = 0; *header_fields[j]; j++) {
struct _header_raw *raw;
char *field, *value;
field = g_strdup_printf ("\n%s:", header_fields[j]);
value = get_header_field (header, field);
g_free (field);
if (!value)
continue;
raw = g_malloc0 (sizeof (struct _header_raw));
raw->next = NULL;
raw->name = g_strdup (header_fields[j]);
raw->value = value;
raw->offset = -1;
if (!h) {
h = raw;
tail = h;
} else {
tail->next = raw;
tail = raw;
}
}
/* construct the CamelMessageInfo */
info->subject = camel_summary_format_string (h, "subject");
info->from = camel_summary_format_address (h, "from");
info->to = camel_summary_format_address (h, "to");
info->cc = camel_summary_format_address (h, "cc");
info->user_flags = NULL;
info->date_sent = header_decode_date (header_raw_find (&h, "date", NULL), NULL);
received = header_raw_find (&h, "received", NULL);
if (received)
received = strrchr (received, ';');
if (received)
info->date_received = header_decode_date (received + 1, NULL);
else
info->date_received = 0;
info->message_id = header_msgid_decode (header_raw_find (&h, "message-id", NULL));
/* if we have a references, use that, otherwise, see if we have an in-reply-to
header, with parsable content, otherwise *shrug* */
info->references = header_references_decode (header_raw_find (&h, "references", NULL));
if (info->references == NULL)
info->references = header_references_decode (header_raw_find (&h, "in-reply-to", NULL));
while (h->next) {
struct _header_raw *next = h->next;
g_free (h->name);
g_free (h->value);
g_free (h);
h = next;
}
g_free (result);
return info;
}
/* get a single message info, by uid */
static const CamelMessageInfo *
imap_get_message_info (CamelFolder *folder, const char *uid)
{
CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder);
g_return_val_if_fail (*uid != '\0', NULL);
if (imap_folder->summary)
return (CamelMessageInfo *) g_hash_table_lookup (imap_folder->summary_hash, uid);
return NULL;
}
static GPtrArray *
imap_search_by_expression (CamelFolder *folder, const char *expression, CamelException *ex)
{
GPtrArray *uids = NULL;
char *result, *sexp, *p;
int status;
d(fprintf (stderr, "camel sexp: '%s'\n", expression));
sexp = imap_translate_sexp (expression);
d(fprintf (stderr, "imap sexp: '%s'\n", sexp));
uids = g_ptr_array_new ();
if (!folder->has_search_capability) {
g_free (sexp);
return uids;
}
status = camel_imap_command_extended (CAMEL_IMAP_STORE (folder->parent_store), folder,
&result, ex, "UID SEARCH %s", sexp);
if (status != CAMEL_IMAP_OK) {
g_free (sexp);
return uids;
}
if ((p = strstr (result, "* SEARCH"))) {
char *word;
word = imap_next_word (p); /* word now points to SEARCH */
for (word = imap_next_word (word); *word && *word != '*'; word = imap_next_word (word)) {
gboolean word_is_numeric = TRUE;
char *ep;
/* find the end of this word and make sure it's a numeric uid */
for (ep = word; *ep && *ep != ' ' && *ep != '\n'; ep++)
if (*ep < '0' || *ep > '9')
word_is_numeric = FALSE;
if (word_is_numeric)
g_ptr_array_add (uids, g_strndup (word, (gint)(ep - word)));
}
}
g_free (result);
g_free (sexp);
return uids;
}
#if 0
static guint32
imap_get_permanent_flags (CamelFolder *folder, CamelException *ex)
{
/* return permamnant flags */
return folder->permanent_flags;
}
#endif
static guint32
imap_get_message_flags (CamelFolder *folder, const char *uid)
{
const CamelMessageInfo *info;
info = imap_get_message_info (folder, uid);
g_return_val_if_fail (info != NULL, 0);
return info->flags;
}
static void
imap_set_message_flags (CamelFolder *folder, const char *uid, guint32 flags, guint32 set)
{
CamelMessageInfo *info;
info = (CamelMessageInfo*)imap_get_message_info (folder, uid);
g_return_if_fail (info != NULL);
info->flags = (info->flags & ~flags) | (set & flags) | CAMEL_MESSAGE_FOLDER_FLAGGED;
/*gtk_signal_emit_by_name (GTK_OBJECT (folder), "message_changed", uid);*/
camel_object_trigger_event (CAMEL_OBJECT (folder), "message_changed", (gpointer *) uid);
}
static gboolean
imap_get_message_user_flag (CamelFolder *folder, const char *uid, const char *name)
{
return FALSE;
}
static void
imap_set_message_user_flag (CamelFolder *folder, const char *uid, const char *name, gboolean value)
{
/*gtk_signal_emit_by_name (GTK_OBJECT (folder), "message_changed", uid);*/
camel_object_trigger_event (CAMEL_OBJECT (folder), "message_changed", (gpointer *) uid);
}
void
camel_imap_folder_changed (CamelFolder *folder, gint recent, GPtrArray *expunged, CamelException *ex)
{
CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder);
if (expunged) {
gint i, id;
for (i = 0; i < expunged->len; i++) {
id = atoi (expunged->pdata[i]);
d(fprintf (stderr, "Expunging message %d from the summary (i = %d)\n", id + i, i));
if (id <= imap_folder->summary->len) {
CamelMessageInfo *info;
info = (CamelMessageInfo *) imap_folder->summary->pdata[id - 1];
/* remove from the lookup table and summary */
g_hash_table_remove (imap_folder->summary_hash, info->uid);
g_ptr_array_remove_index (imap_folder->summary, id - 1);
/* free the info data */
g_free (info->subject);
g_free (info->from);
g_free (info->to);
g_free (info->cc);
g_free (info->uid);
g_free (info->message_id);
header_references_list_clear (&info->references);
g_free (info);
info = NULL;
} else {
/* Hopefully this should never happen */
d(fprintf (stderr, "imap expunge-error: message %d is out of range\n", id));
}
}
}
if (recent > 0) {
CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder);
CamelMessageInfo *info;
gint i, j, last, slast;
if (!imap_folder->summary) {
imap_folder->summary = g_ptr_array_new ();
imap_folder->summary_hash = g_hash_table_new (g_str_hash, g_str_equal);
}
last = imap_folder->summary->len + 1;
slast = imap_get_message_count_internal (folder, ex);
fprintf (stderr, "calculated next message is: %d\n", last);
fprintf (stderr, "server says %d mesgs total\n", slast);
slast -= (recent - 1);
fprintf (stderr, "based on total, new guess is: %d\n", slast);
for (i = slast, j = 0; j < recent; i++, j++) {
info = imap_get_message_info_internal (folder, i, ex);
if (info) {
if (!imap_get_message_info (folder, info->uid)) {
/* add to our summary */
g_ptr_array_add (imap_folder->summary, info);
g_hash_table_insert (imap_folder->summary_hash, info->uid, info);
} else {
/* we already have a record of it */
g_free (info->subject);
g_free (info->from);
g_free (info->to);
g_free (info->cc);
g_free (info->uid);
g_free (info->message_id);
header_references_list_clear (&info->references);
g_free (info);
info = NULL;
d(fprintf (stderr, "we already had message %d!!\n", i));
}
} else {
/* our hack failed so now we need to do it the old fashioned way */
/*imap_get_summary_internal (folder, ex);*/
d(fprintf (stderr, "*** we tried to get message %d but failed\n", i));
break;
}
}
}
/*gtk_signal_emit_by_name (GTK_OBJECT (folder), "folder_changed", 0);*/
camel_object_trigger_event (CAMEL_OBJECT (folder), "folder_changed", GINT_TO_POINTER (0));
}