a878c6c70b
2003-05-17 Jeremy Katz <katzj@redhat.com> * mail-offline-handler.c: Add #include to fix warning. * mail-mt.c (mail_msg_new): Use glib macros for pointer/int conversions. (mail_msg_free): Likewise. (mail_msg_cancel): Likewise. (mail_msg_wait): Likewise. (mail_msg_active): Likewise. * mail-session.c (main_register_timeout): Likewise. (register_timeout): Likewise. (main_remove_timeout): Likewise. (remove_timeout): Likewise. * message-list.c (ml_value_to_string): Likewise. * mail-identify.c: Add #include to fix warning. * mail-config.c (config_write_fonts): Don't pass extra arguments to g_warning. * mail-callbacks.c: Add #include to fix warning. svn path=/trunk/; revision=21222
131 lines
3.9 KiB
C
131 lines
3.9 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
|
|
|
|
/*
|
|
* Author :
|
|
* Dan Winship <danw@ximian.com>
|
|
*
|
|
* Copyright 2000, Ximian, Inc. (www.ximian.com)
|
|
*
|
|
* 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 <config.h>
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include <glib.h>
|
|
#include <libgnomevfs/gnome-vfs-utils.h>
|
|
#include <libgnomevfs/gnome-vfs-mime.h>
|
|
#include <libgnomevfs/gnome-vfs-mime-utils.h>
|
|
#include "mail.h"
|
|
|
|
static const char *identify_by_magic (CamelDataWrapper *data, MailDisplay *md);
|
|
|
|
/**
|
|
* mail_identify_mime_part:
|
|
* @part: a CamelMimePart
|
|
* @md: the MailDisplay @part is being shown in
|
|
*
|
|
* Try to identify the MIME type of the data in @part (which presumably
|
|
* doesn't have a useful Content-Type).
|
|
*
|
|
* Return value: the MIME type, which the caller must free, or %NULL
|
|
* if it could not be identified.
|
|
**/
|
|
char *
|
|
mail_identify_mime_part (CamelMimePart *part, MailDisplay *md)
|
|
{
|
|
const char *filename, *name_type = NULL, *magic_type = NULL;
|
|
CamelDataWrapper *data;
|
|
|
|
filename = camel_mime_part_get_filename (part);
|
|
if (filename) {
|
|
/* GNOME-VFS will misidentify TNEF attachments as MPEG */
|
|
if (!strcmp (filename, "winmail.dat"))
|
|
return g_strdup ("application/vnd.ms-tnef");
|
|
|
|
name_type = gnome_vfs_mime_type_from_name (filename);
|
|
}
|
|
|
|
data = camel_medium_get_content_object (CAMEL_MEDIUM (part));
|
|
if (!camel_data_wrapper_is_offline (data))
|
|
magic_type = identify_by_magic (data, md);
|
|
|
|
if (magic_type && name_type) {
|
|
/* If GNOME-VFS doesn't recognize the data by magic, but it
|
|
* contains English words, it will call it text/plain. If the
|
|
* filename-based check came up with something different, use
|
|
* that instead.
|
|
*/
|
|
if (!strcmp (magic_type, "text/plain"))
|
|
return g_strdup (name_type);
|
|
|
|
/* If if returns "application/octet-stream" try to
|
|
* do better with the filename check.
|
|
*/
|
|
if (!strcmp (magic_type, "application/octet-stream"))
|
|
return g_strdup (name_type);
|
|
}
|
|
|
|
/* If the MIME part data was online, and the magic check
|
|
* returned something, use that, since it's more reliable.
|
|
*/
|
|
if (magic_type)
|
|
return g_strdup (magic_type);
|
|
|
|
/* Otherwise try guessing based on the filename */
|
|
if (name_type)
|
|
return g_strdup (name_type);
|
|
|
|
/* Another possibility to try is the x-mac-type / x-mac-creator
|
|
* parameter to Content-Type used by some Mac email clients. That
|
|
* would require a Mac type to mime type conversion table.
|
|
*/
|
|
|
|
#if 0
|
|
/* If the data part is offline, then we didn't try magic
|
|
* before, so force it to be loaded so we can try again later.
|
|
* FIXME: In a perfect world, we would not load the content
|
|
* just to identify the MIME type.
|
|
*/
|
|
/* This is disabled as it just frustrates users more than it helps,
|
|
see discussion in bug #11778 */
|
|
if (camel_data_wrapper_is_offline (data))
|
|
mail_content_loaded (data, md, TRUE, NULL, NULL, NULL);
|
|
#endif
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static const char *
|
|
identify_by_magic (CamelDataWrapper *data, MailDisplay *md)
|
|
{
|
|
CamelStreamMem *memstream;
|
|
const char *type;
|
|
|
|
memstream = (CamelStreamMem *)camel_stream_mem_new();
|
|
if (camel_data_wrapper_write_to_stream (data, (CamelStream *)memstream) > 0)
|
|
type = gnome_vfs_get_mime_type_for_data(memstream->buffer->data, memstream->buffer->len);
|
|
else
|
|
type = NULL;
|
|
camel_object_unref(memstream);
|
|
|
|
return type;
|
|
}
|