path: root/em-format/e-mail-formatter-source.c

/*
 * evolution-source.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.
 *
 * 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 Lesser General Public License
 * along with this 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-formatter-extension.h"
#include "e-mail-inline-filter.h"

typedef EMailFormatterExtension EMailFormatterSource;
typedef EMailFormatterExtensionClass EMailFormatterSourceClass;

GType e_mail_formatter_source_get_type (void);

G_DEFINE_TYPE (
    EMailFormatterSource,
    e_mail_formatter_source,
    E_TYPE_MAIL_FORMATTER_EXTENSION)

static const gchar *formatter_mime_types[] = {
    "application/vnd.evolution.source",
    NULL
};

static gboolean
emfe_source_format (EMailFormatterExtension *extension,
                    EMailFormatter *formatter,
                    EMailFormatterContext *context,
                    EMailPart *part,
                    GOutputStream *stream,
                    GCancellable *cancellable)
{
    GString *buffer;
    GOutputStream *filtered_stream;
    CamelMimeFilter *filter;
    CamelMimePart *mime_part;

    mime_part = e_mail_part_ref_mime_part (part);

    buffer = g_string_new ("");

    if (CAMEL_IS_MIME_MESSAGE (mime_part)) {
        g_string_append (
            buffer,
            "<div class=\"part-container "
            "-e-mail-formatter-body-color "
            "-e-web-view-text-color\" "
            "style=\"border: 0;\" >");
    } else {
        g_string_append (
            buffer,
            "<div class=\"part-container "
            "-e-mail-formatter-body-color "
            "-e-web-view-text-color "
            "-e-mail-formatter-frame-color\">"
            "<div class=\"part-container-inner-margin pre\">\n");
    }

    g_string_append (buffer, "<code class=\"pre\">");

    g_output_stream_write_all (
        stream, buffer->str, buffer->len, NULL, cancellable, NULL);

    filter = camel_mime_filter_tohtml_new (
        CAMEL_MIME_FILTER_TOHTML_CONVERT_NL |
        CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES |
        CAMEL_MIME_FILTER_TOHTML_PRESERVE_8BIT, 0);
    filtered_stream = camel_filter_output_stream_new (stream, filter);
    g_filter_output_stream_set_close_base_stream (
        G_FILTER_OUTPUT_STREAM (filtered_stream), FALSE);
    g_object_unref (filter);

    camel_data_wrapper_write_to_output_stream_sync (
        CAMEL_DATA_WRAPPER (mime_part),
        filtered_stream, cancellable, NULL);
    g_output_stream_flush (filtered_stream, cancellable, NULL);

    g_object_unref (filtered_stream);

    /* Resets the string buffer. */
    g_string_assign (buffer, "</code>");

    if (CAMEL_IS_MIME_MESSAGE (mime_part))
        g_string_append (buffer, "</div>");
    else
        g_string_append (buffer, "</div></div>");

    g_output_stream_write_all (
        stream, buffer->str, buffer->len, NULL, cancellable, NULL);

    g_string_free (buffer, TRUE);

    g_object_unref (mime_part);

    return TRUE;
}

static void
e_mail_formatter_source_class_init (EMailFormatterExtensionClass *class)
{
    class->display_name = _("Source");
    class->description = _("Display source of a MIME part");
    class->mime_types = formatter_mime_types;
    class->priority = G_PRIORITY_LOW;
    class->format = emfe_source_format;
}

static void
e_mail_formatter_source_init (EMailFormatterExtension *extension)
{
}