diff options
Diffstat (limited to 'mail/mail-identify.c')
| -rw-r--r-- | mail/mail-identify.c | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/mail/mail-identify.c b/mail/mail-identify.c deleted file mode 100644 index cc6e4ef9d0..0000000000 --- a/mail/mail-identify.c +++ /dev/null @@ -1,131 +0,0 @@ -/* -*- 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-mime.h> -#include <libgnomevfs/gnome-vfs-mime-sniff-buffer.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_or_default (filename, NULL); - } - - 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 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. - */ - if (camel_data_wrapper_is_offline (data)) - mail_content_loaded (data, md, TRUE, NULL, NULL, NULL); - - return NULL; -} - -static const char * -identify_by_magic (CamelDataWrapper *data, MailDisplay *md) -{ - GnomeVFSMimeSniffBuffer *sniffer; - CamelStream *memstream; - const char *type; - GByteArray *ba; - - ba = g_byte_array_new (); - memstream = camel_stream_mem_new_with_byte_array (ba); - camel_data_wrapper_write_to_stream (data, memstream); - if (ba->len) { - sniffer = gnome_vfs_mime_sniff_buffer_new_from_memory (ba->data, ba->len); - type = gnome_vfs_get_mime_type_for_buffer (sniffer); - gnome_vfs_mime_sniff_buffer_free (sniffer); - } else - type = NULL; - camel_object_unref (CAMEL_OBJECT (memstream)); - - return type; -} |