camel/camel-mime-filter-save.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  *  Authors: Jeffrey Stedfast <fejj@ximian.com>
   4  *
   5  *  Copyright 2002 Ximian, Inc. (www.ximian.com)
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU Lesser General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU Lesser General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU Lesser General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20  *
  21  */
  22
  23
  24 #ifndef HAVE_CONFIG_H
  25 #include <config.h>
  26 #endif
  27
  28 #include "camel-mime-filter-save.h"
  29 #include "camel-stream-mem.h"
  30
  31 static void filter (CamelMimeFilter *f, char *in, size_t len, size_t prespace,
  32                     char **out, size_t *outlen, size_t *outprespace);
  33 static void complete (CamelMimeFilter *f, char *in, size_t len,
  34                       size_t prespace, char **out, size_t *outlen,
  35                       size_t *outprespace);
  36 static void reset (CamelMimeFilter *f);
  37
  38
  39 static void
  40 camel_mime_filter_save_class_init (CamelMimeFilterSaveClass *klass)
  41 {
  42         CamelMimeFilterClass *mime_filter_class =
  43                 (CamelMimeFilterClass *) klass;
  44
  45         mime_filter_class->filter = filter;
  46         mime_filter_class->complete = complete;
  47         mime_filter_class->reset = reset;
  48 }
  49
  50 CamelType
  51 camel_mime_filter_save_get_type (void)
  52 {
  53         static CamelType type = CAMEL_INVALID_TYPE;
  54
  55         if (type == CAMEL_INVALID_TYPE) {
  56                 type = camel_type_register (camel_mime_filter_get_type(), "CamelMimeFilterSave",
  57                                             sizeof (CamelMimeFilterSave),
  58                                             sizeof (CamelMimeFilterSaveClass),
  59                                             (CamelObjectClassInitFunc) camel_mime_filter_save_class_init,
  60                                             NULL,
  61                                             NULL,
  62                                             NULL);
  63         }
  64
  65         return type;
  66 }
  67
  68 static void
  69 filter (CamelMimeFilter *f, char *in, size_t len, size_t prespace,
  70         char **out, size_t *outlen, size_t *outprespace)
  71 {
  72         CamelMimeFilterSave *save = (CamelMimeFilterSave *) f;
  73
  74         if (save->stream)
  75                 camel_stream_write (save->stream, in, len);
  76
  77         *out = in;
  78         *outlen = len;
  79         *outprespace = f->outpre;
  80 }
  81
  82 static void
  83 complete (CamelMimeFilter *f, char *in, size_t len, size_t prespace,
  84           char **out, size_t *outlen, size_t *outprespace)
  85 {
  86         if (len)
  87                 filter (f, in, len, prespace, out, outlen, outprespace);
  88 }
  89
  90 static void
  91 reset (CamelMimeFilter *f)
  92 {
  93         /* no-op */
  94 }
  95
  96
  97 /**
  98  * camel_mime_filter_save_new:
  99  *
 100  * Create a new #CamelMimeFilterSave filter object.
 101  *
 102  * Returns a new #CamelMimeFilterSave object
 103  **/
 104 CamelMimeFilter *
 105 camel_mime_filter_save_new (void)
 106 {
 107         CamelMimeFilterSave *save = CAMEL_MIME_FILTER_SAVE (camel_object_new (CAMEL_MIME_FILTER_SAVE_TYPE));
 108
 109         save->stream = camel_stream_mem_new ();
 110
 111         return (CamelMimeFilter *) save;
 112 }
 113
 114
 115 /**
 116  * camel_mime_filter_save_new_with_stream:
 117  * @stream: a #CamelStream object
 118  *
 119  * Create a new #CamelMimeFilterSave filter object that will save a
 120  * copy of all filtered data to @stream.
 121  *
 122  * Returns a new #CamelMimeFilterSave object
 123  **/
 124 CamelMimeFilter *
 125 camel_mime_filter_save_new_with_stream (CamelStream *stream)
 126 {
 127         CamelMimeFilterSave *save = CAMEL_MIME_FILTER_SAVE (camel_object_new (CAMEL_MIME_FILTER_SAVE_TYPE));
 128
 129         save->stream = stream;
 130         camel_object_ref (stream);
 131
 132         return (CamelMimeFilter *) save;
 133 }