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/*
 * 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 <string.h>
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include <camel/camel.h>

#include "e-mail-parser-text-highlight.h"
#include "languages.h"

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

#include <libebackend/libebackend.h>

#define d(x)

typedef EMailParserExtension EMailParserTextHighlight;
typedef EMailParserExtensionClass EMailParserTextHighlightClass;

typedef EExtension EMailParserTextHighlightLoader;
typedef EExtensionClass EMailParserTextHighlightLoaderClass;

GType e_mail_parser_text_highlight_get_type (void);

G_DEFINE_DYNAMIC_TYPE (
    EMailParserTextHighlight,
    e_mail_parser_text_highlight,
    E_TYPE_MAIL_PARSER_EXTENSION)

static gboolean
empe_text_highlight_parse (EMailParserExtension *extension,
                           EMailParser *parser,
                           CamelMimePart *part,
                           GString *part_id,
                           GCancellable *cancellable,
                           GQueue *out_mail_parts)
{
    CamelContentType *ct;
    gint len;

    /* Prevent recursion */
    if (strstr (part_id->str, ".text-highlight") != NULL)
        return FALSE;

    /* Don't parse text/html if it's not an attachment */
    ct = camel_mime_part_get_content_type (part);
    if (camel_content_type_is (ct, "text", "html")) {
        const CamelContentDisposition *disp;

        disp = camel_mime_part_get_content_disposition (part);
        if (!disp || (g_strcmp0 (disp->disposition, "attachment") != 0))
            return FALSE;
    }

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

    /* All source codes and scripts are in general plain texts,
     * so let text/plain parser handle it. */

    e_mail_parser_parse_part_as (
        parser, part, part_id, "text/plain",
        cancellable, out_mail_parts);

    g_string_truncate (part_id, len);

    return TRUE;
}

static void
e_mail_parser_text_highlight_class_init (EMailParserExtensionClass *class)
{
    class->mime_types = get_mime_types ();
    class->parse = empe_text_highlight_parse;
}

void
e_mail_parser_text_highlight_class_finalize (EMailParserExtensionClass *class)
{
}

static void
e_mail_parser_text_highlight_init (EMailParserExtension *extension)
{
}

void
e_mail_parser_text_highlight_type_register (GTypeModule *type_module)
{
    e_mail_parser_text_highlight_register_type (type_module);
}