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Diffstat (limited to 'gmime-filter-reply.c')
| -rw-r--r-- | gmime-filter-reply.c | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/gmime-filter-reply.c b/gmime-filter-reply.c new file mode 100644 index 00000000..3e298e1b --- /dev/null +++ b/gmime-filter-reply.c @@ -0,0 +1,208 @@ +/* + * 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; + + *outptr++ = *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 == '\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; +} + |