path: root/em-format/e-mail-formatter-quote-text-plain.c

/*
 * e-mail-formatter-quote-text-plain.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 <camel/camel.h>

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

#include "e-mail-formatter-quote.h"
#include "e-mail-part-utils.h"
#include "e-mail-stripsig-filter.h"

typedef EMailFormatterExtension EMailFormatterQuoteTextPlain;
typedef EMailFormatterExtensionClass EMailFormatterQuoteTextPlainClass;

GType e_mail_formatter_quote_text_plain_get_type (void);

G_DEFINE_TYPE (
    EMailFormatterQuoteTextPlain,
    e_mail_formatter_quote_text_plain,
    E_TYPE_MAIL_FORMATTER_QUOTE_EXTENSION)

static const gchar *formatter_mime_types[] = {
    "text/plain",
    NULL
};

static gboolean
emqfe_text_plain_format (EMailFormatterExtension *extension,
                         EMailFormatter *formatter,
                         EMailFormatterContext *context,
                         EMailPart *part,
                         CamelStream *stream,
                         GCancellable *cancellable)
{
    CamelStream *filtered_stream;
    CamelMimeFilter *html_filter;
    CamelMimeFilter *sig_strip;
    CamelMimePart *mime_part;
    CamelContentType *type;
    EMailFormatterQuoteContext *qf_context;
    CamelMimeFilterToHTMLFlags text_flags;
    const gchar *format;
    guint32 rgb = 0x737373;

    mime_part = e_mail_part_ref_mime_part (part);
    if (mime_part == NULL)
        return FALSE;

    qf_context = (EMailFormatterQuoteContext *) context;

    text_flags =
        CAMEL_MIME_FILTER_TOHTML_PRE |
        CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS |
        CAMEL_MIME_FILTER_TOHTML_CONVERT_ADDRESSES;

    if (e_mail_formatter_get_mark_citations (formatter))
        text_flags |= CAMEL_MIME_FILTER_TOHTML_MARK_CITATION;

    /* Check for RFC 2646 flowed text. */
    type = camel_mime_part_get_content_type (mime_part);
    if (camel_content_type_is (type, "text", "plain")
        && (format = camel_content_type_param (type, "format"))
        && !g_ascii_strcasecmp (format, "flowed"))
        text_flags |= CAMEL_MIME_FILTER_TOHTML_FORMAT_FLOWED;

    filtered_stream = camel_stream_filter_new (stream);

    if ((qf_context->qf_flags & E_MAIL_FORMATTER_QUOTE_FLAG_KEEP_SIG) == 0) {
        sig_strip = e_mail_stripsig_filter_new (TRUE);
        camel_stream_filter_add (
            CAMEL_STREAM_FILTER (filtered_stream), sig_strip);
        g_object_unref (sig_strip);
    }

    html_filter = camel_mime_filter_tohtml_new (text_flags, rgb);
    camel_stream_filter_add (
        CAMEL_STREAM_FILTER (filtered_stream), html_filter);
    g_object_unref (html_filter);

    e_mail_formatter_format_text (
        formatter, part, filtered_stream, cancellable);

    camel_stream_flush (filtered_stream, cancellable, NULL);
    g_object_unref (filtered_stream);

    g_object_unref (mime_part);

    return TRUE;
}

static void
e_mail_formatter_quote_text_plain_class_init (EMailFormatterExtensionClass *class)
{
    class->display_name = _("Plain Text");
    class->description = _("Format part as plain text");
    class->mime_types = formatter_mime_types;
    class->priority = G_PRIORITY_HIGH;
    class->format = emqfe_text_plain_format;
}

static void
e_mail_formatter_quote_text_plain_init (EMailFormatterExtension *extension)
{
}