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/*
 * e-mail-parser-text-html.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 "e-mail-format-extensions.h"

#include <em-format/e-mail-parser-extension.h>
#include <em-format/e-mail-parser.h>
#include <em-format/e-mail-part-utils.h>
#include <e-util/e-util.h>

#include <glib/gi18n-lib.h>
#include <camel/camel.h>

#include <string.h>

typedef struct _EMailParserTextHTML {
    GObject parent;
} EMailParserTextHTML;

typedef struct _EMailParserTextHTMLClass {
    GObjectClass parent_class;
} EMailParserTextHTMLClass;

static void e_mail_parser_parser_extension_interface_init (EMailParserExtensionInterface *iface);
static void e_mail_parser_mail_extension_interface_init (EMailExtensionInterface *iface);

G_DEFINE_TYPE_EXTENDED (
    EMailParserTextHTML,
    e_mail_parser_text_html,
    G_TYPE_OBJECT,
    0,
    G_IMPLEMENT_INTERFACE (
        E_TYPE_MAIL_EXTENSION,
        e_mail_parser_mail_extension_interface_init)
    G_IMPLEMENT_INTERFACE (
        E_TYPE_MAIL_PARSER_EXTENSION,
        e_mail_parser_parser_extension_interface_init));

static const gchar *parser_mime_types[] = { "text/html", NULL };

static GSList *
empe_text_html_parse (EMailParserExtension *extension,
                      EMailParser *parser,
                      CamelMimePart *part,
                      GString *part_id,
                      GCancellable *cancellable)
{
    EMailPart *empart;
    const gchar *location;
    gchar *cid = NULL;
    const gchar *base;
    gint len;

    if (g_cancellable_is_cancelled (cancellable))
        return NULL;

    cid = NULL;
    base = camel_medium_get_header (CAMEL_MEDIUM (part), "content-base");
    location = camel_mime_part_get_content_location (part);
    if (location != NULL) {
        if (strchr (location, ':') == NULL && base != NULL) {
            CamelURL *uri;
            CamelURL *base_url = camel_url_new (base, NULL);

            uri = camel_url_new_with_base (base_url, location);
            cid = camel_url_to_string (uri, 0);
            camel_url_free (uri);
            camel_url_free (base_url);
        } else {
            cid = g_strdup (location);
        }
    }

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

    empart = e_mail_part_new (part, part_id->str);
    empart->mime_type = g_strdup ("text/html");
    empart->cid = cid;
    g_string_truncate (part_id, len);

    if (e_mail_part_is_attachment (part)) {
        return e_mail_parser_wrap_as_attachment (
                parser, part, g_slist_append (NULL, empart),
                part_id, cancellable);
    }

    return g_slist_append (NULL, empart);
}

static const gchar **
empe_text_html_mime_types (EMailExtension *extension)
{
    return parser_mime_types;
}

static void
e_mail_parser_text_html_class_init (EMailParserTextHTMLClass *class)
{
}

static void
e_mail_parser_parser_extension_interface_init (EMailParserExtensionInterface *iface)
{
    iface->parse = empe_text_html_parse;
}

static void
e_mail_parser_mail_extension_interface_init (EMailExtensionInterface *iface)
{
    iface->mime_types = empe_text_html_mime_types;
}

static void
e_mail_parser_text_html_init (EMailParserTextHTML *parser)
{

}