path: root/em-format/e-mail-parser-image.c

/*
 * e-mail-parser-image.c
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <glib/gi18n-lib.h>

#include <e-util/e-util.h>

#include "e-mail-parser-extension.h"
#include "e-mail-part-utils.h"

typedef EMailParserExtension EMailParserImage;
typedef EMailParserExtensionClass EMailParserImageClass;

GType e_mail_parser_image_get_type (void);

G_DEFINE_TYPE (
    EMailParserImage,
    e_mail_parser_image,
    E_TYPE_MAIL_PARSER_EXTENSION)

static const gchar *parser_mime_types[] = {
    "image/gif",
    "image/jpeg",
    "image/png",
    "image/x-png",
    "image/x-bmp",
    "image/bmp",
    "image/svg",
    "image/x-cmu-raster",
    "image/x-ico",
    "image/x-portable-anymap",
    "image/x-portable-bitmap",
    "image/x-portable-graymap",
    "image/x-portable-pixmap",
    "image/x-xpixmap",
    "image/jpg",
    "image/pjpeg",
    NULL
};

static gboolean
is_attachment (const gchar *disposition)
{
    return disposition && g_ascii_strcasecmp (disposition, "attachment") == 0;
}

static gboolean
empe_image_parse (EMailParserExtension *extension,
                  EMailParser *parser,
                  CamelMimePart *part,
                  GString *part_id,
                  GCancellable *cancellable,
                  GQueue *out_mail_parts)
{
    GQueue work_queue = G_QUEUE_INIT;
    EMailPart *mail_part;
    const gchar *tmp;
    gchar *cid;
    gint len;
    CamelContentType *ct;

    tmp = camel_mime_part_get_content_id (part);
    if (tmp) {
        cid = g_strdup_printf ("cid:%s", tmp);
    } else {
        cid = NULL;
    }

    len = part_id->len;
    g_string_append (part_id, ".image");

    ct = camel_mime_part_get_content_type (part);

    mail_part = e_mail_part_new (part, part_id->str);
    mail_part->is_attachment = TRUE;
    mail_part->cid = cid;
    mail_part->mime_type = ct ? camel_content_type_simple (ct) : g_strdup ("image/*");
    mail_part->is_hidden = cid != NULL && !is_attachment (camel_mime_part_get_disposition (part));

    g_string_truncate (part_id, len);

    g_queue_push_tail (&work_queue, mail_part);

    if (!mail_part->is_hidden)
        e_mail_parser_wrap_as_attachment (
            parser, part, part_id, &work_queue);

    e_queue_transfer (&work_queue, out_mail_parts);

    return TRUE;
}

static void
e_mail_parser_image_class_init (EMailParserExtensionClass *class)
{
    class->mime_types = parser_mime_types;
    class->priority = G_PRIORITY_LOW;
    class->parse = empe_image_parse;
}

static void
e_mail_parser_image_init (EMailParserExtension *extension)
{
}