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/*
* Copyright © 2009 Keith Packard <keithp@keithp.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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 General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "gmime-filter-reply.h"
/**
* SECTION: gmime-filter-reply
* @title: GMimeFilterReply
* @short_description: Add/remove reply markers
*
* A #GMimeFilter for adding or removing reply markers
**/
static void g_mime_filter_reply_class_init (GMimeFilterReplyClass *klass);
static void g_mime_filter_reply_init (GMimeFilterReply *filter, GMimeFilterReplyClass *klass);
static void g_mime_filter_reply_finalize (GObject *object);
static GMimeFilter *filter_copy (GMimeFilter *filter);
static void filter_filter (GMimeFilter *filter, char *in, size_t len, size_t prespace,
char **out, size_t *outlen, size_t *outprespace);
static void filter_complete (GMimeFilter *filter, char *in, size_t len, size_t prespace,
char **out, size_t *outlen, size_t *outprespace);
static void filter_reset (GMimeFilter *filter);
static GMimeFilterClass *parent_class = NULL;
GType
g_mime_filter_reply_get_type (void)
{
static GType type = 0;
if (!type) {
static const GTypeInfo info = {
sizeof (GMimeFilterReplyClass),
NULL, /* base_class_init */
NULL, /* base_class_finalize */
(GClassInitFunc) g_mime_filter_reply_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GMimeFilterReply),
0, /* n_preallocs */
(GInstanceInitFunc) g_mime_filter_reply_init,
NULL /* value_table */
};
type = g_type_register_static (GMIME_TYPE_FILTER, "GMimeFilterReply", &info, (GTypeFlags) 0);
}
return type;
}
static void
g_mime_filter_reply_class_init (GMimeFilterReplyClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GMimeFilterClass *filter_class = GMIME_FILTER_CLASS (klass);
parent_class = (GMimeFilterClass *) g_type_class_ref (GMIME_TYPE_FILTER);
object_class->finalize = g_mime_filter_reply_finalize;
filter_class->copy = filter_copy;
filter_class->filter = filter_filter;
filter_class->complete = filter_complete;
filter_class->reset = filter_reset;
}
static void
g_mime_filter_reply_init (GMimeFilterReply *filter, GMimeFilterReplyClass *klass)
{
(void) klass;
filter->saw_nl = TRUE;
filter->saw_angle = FALSE;
}
static void
g_mime_filter_reply_finalize (GObject *object)
{
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GMimeFilter *
filter_copy (GMimeFilter *filter)
{
GMimeFilterReply *reply = (GMimeFilterReply *) filter;
return g_mime_filter_reply_new (reply->encode);
}
static void
filter_filter (GMimeFilter *filter, char *inbuf, size_t inlen, size_t prespace,
char **outbuf, size_t *outlen, size_t *outprespace)
{
GMimeFilterReply *reply = (GMimeFilterReply *) filter;
register const char *inptr = inbuf;
const char *inend = inbuf + inlen;
char *outptr;
(void) prespace;
if (reply->encode) {
g_mime_filter_set_size (filter, 3 * inlen, FALSE);
outptr = filter->outbuf;
while (inptr < inend) {
if (reply->saw_nl) {
*outptr++ = '>';
*outptr++ = ' ';
reply->saw_nl = FALSE;
}
if (*inptr == '\n')
reply->saw_nl = TRUE;
else
reply->saw_nl = FALSE;
if (*inptr != '\r')
*outptr++ = *inptr;
inptr++;
}
} else {
g_mime_filter_set_size (filter, inlen + 1, FALSE);
outptr = filter->outbuf;
while (inptr < inend) {
if (reply->saw_nl) {
if (*inptr == '>')
reply->saw_angle = TRUE;
else
*outptr++ = *inptr;
reply->saw_nl = FALSE;
} else if (reply->saw_angle) {
if (*inptr == ' ')
;
else
*outptr++ = *inptr;
reply->saw_angle = FALSE;
} else if (*inptr != '\r') {
if (*inptr == '\n')
reply->saw_nl = TRUE;
*outptr++ = *inptr;
}
inptr++;
}
}
*outlen = outptr - filter->outbuf;
*outprespace = filter->outpre;
*outbuf = filter->outbuf;
}
static void
filter_complete (GMimeFilter *filter, char *inbuf, size_t inlen, size_t prespace,
char **outbuf, size_t *outlen, size_t *outprespace)
{
if (inbuf && inlen)
filter_filter (filter, inbuf, inlen, prespace, outbuf, outlen, outprespace);
}
static void
filter_reset (GMimeFilter *filter)
{
GMimeFilterReply *reply = (GMimeFilterReply *) filter;
reply->saw_nl = TRUE;
reply->saw_angle = FALSE;
}
/**
* g_mime_filter_reply_new:
* @encode: %TRUE if the filter should encode or %FALSE otherwise
* @dots: encode/decode dots (as for SMTP)
*
* Creates a new #GMimeFilterReply filter.
*
* If @encode is %TRUE, then all lines will be prefixed by "> ",
* otherwise any lines starting with "> " will have that removed
*
* Returns: a new #GMimeFilterReply filter.
**/
GMimeFilter *
g_mime_filter_reply_new (gboolean encode)
{
GMimeFilterReply *new_reply;
new_reply = (GMimeFilterReply *) g_object_newv (GMIME_TYPE_FILTER_REPLY, 0, NULL);
new_reply->encode = encode;
return (GMimeFilter *) new_reply;
}