camel/camel-mime-part-utils.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; fill-column: 160 -*- */
   2 /* camel-mime-part-utils : Utility for mime parsing and so on
   3  *
   4  * Authors: Bertrand Guiheneuf <bertrand@helixcode.com>
   5  *          Michael Zucchi <notzed@ximian.com>
   6  *          Jeffrey Stedfast <fejj@ximian.com>
   7  *
   8  * Copyright 1999-2003 Ximian, Inc. (www.ximian.com)
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of version 2 of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
  22  * USA
  23  */
  24
  25 #ifdef HAVE_CONFIG_H
  26 #include <config.h>
  27 #endif
  28
  29 #include <ctype.h>
  30 #include <errno.h>
  31 #include <stdio.h>
  32 #include <string.h>
  33 #include <unistd.h>
  34
  35 #include <libedataserver/e-iconv.h>
  36
  37 #include "camel-charset-map.h"
  38 #include "camel-html-parser.h"
  39 #include "camel-mime-filter-basic.h"
  40 #include "camel-mime-filter-charset.h"
  41 #include "camel-mime-filter-crlf.h"
  42 #include "camel-mime-filter-save.h"
  43 #include "camel-mime-message.h"
  44 #include "camel-mime-part-utils.h"
  45 #include "camel-multipart-encrypted.h"
  46 #include "camel-multipart-signed.h"
  47 #include "camel-multipart.h"
  48 #include "camel-seekable-substream.h"
  49 #include "camel-stream-filter.h"
  50 #include "camel-stream-fs.h"
  51 #include "camel-stream-mem.h"
  52
  53 #define d(x) /*(printf("%s(%d): ", __FILE__, __LINE__),(x))
  54                #include <stdio.h>*/
  55
  56 /* simple data wrapper */
  57 static void
  58 simple_data_wrapper_construct_from_parser (CamelDataWrapper *dw, CamelMimeParser *mp)
  59 {
  60         char *buf;
  61         GByteArray *buffer;
  62         CamelStream *mem;
  63         size_t len;
  64
  65         d(printf ("simple_data_wrapper_construct_from_parser()\n"));
  66
  67         /* read in the entire content */
  68         buffer = g_byte_array_new ();
  69         while (camel_mime_parser_step (mp, &buf, &len) != CAMEL_MIME_PARSER_STATE_BODY_END) {
  70                 d(printf("appending o/p data: %d: %.*s\n", len, len, buf));
  71                 g_byte_array_append (buffer, buf, len);
  72         }
  73
  74         d(printf("message part kept in memory!\n"));
  75
  76         mem = camel_stream_mem_new_with_byte_array (buffer);
  77         camel_data_wrapper_construct_from_stream (dw, mem);
  78         camel_object_unref (mem);
  79 }
  80
  81 /* This replaces the data wrapper repository ... and/or could be replaced by it? */
  82 void
  83 camel_mime_part_construct_content_from_parser (CamelMimePart *dw, CamelMimeParser *mp)
  84 {
  85         CamelDataWrapper *content = NULL;
  86         CamelContentType *ct;
  87         char *encoding;
  88
  89         if (!dw)
  90                 return;
  91
  92         ct = camel_mime_parser_content_type (mp);
  93
  94         encoding = camel_content_transfer_encoding_decode (camel_mime_parser_header (mp, "Content-Transfer-Encoding", NULL));
  95
  96         switch (camel_mime_parser_state (mp)) {
  97         case CAMEL_MIME_PARSER_STATE_HEADER:
  98                 d(printf("Creating body part\n"));
  99                 /* multipart/signed is some fucked up type that we must treat as binary data, fun huh, idiots. */
 100                 if (camel_content_type_is (ct, "multipart", "signed")) {
 101                         content = (CamelDataWrapper *) camel_multipart_signed_new ();
 102                         camel_multipart_construct_from_parser ((CamelMultipart *) content, mp);
 103                 } else {
 104                         content = camel_data_wrapper_new ();
 105                         simple_data_wrapper_construct_from_parser (content, mp);
 106                 }
 107                 break;
 108         case CAMEL_MIME_PARSER_STATE_MESSAGE:
 109                 d(printf("Creating message part\n"));
 110                 content = (CamelDataWrapper *) camel_mime_message_new ();
 111                 camel_mime_part_construct_from_parser ((CamelMimePart *)content, mp);
 112                 break;
 113         case CAMEL_MIME_PARSER_STATE_MULTIPART:
 114                 d(printf("Creating multi-part\n"));
 115                 if (camel_content_type_is (ct, "multipart", "encrypted"))
 116                         content = (CamelDataWrapper *) camel_multipart_encrypted_new ();
 117                 else if (camel_content_type_is (ct, "multipart", "signed"))
 118                         content = (CamelDataWrapper *) camel_multipart_signed_new ();
 119                 else
 120                         content = (CamelDataWrapper *) camel_multipart_new ();
 121
 122                 camel_multipart_construct_from_parser((CamelMultipart *)content, mp);
 123                 d(printf("Created multi-part\n"));
 124                 break;
 125         default:
 126                 g_warning("Invalid state encountered???: %u", camel_mime_parser_state (mp));
 127         }
 128
 129         if (content) {
 130                 if (encoding)
 131                         content->encoding = camel_transfer_encoding_from_string (encoding);
 132
 133                 /* would you believe you have to set this BEFORE you set the content object???  oh my god !!!! */
 134                 camel_data_wrapper_set_mime_type_field (content, camel_mime_part_get_content_type (dw));
 135                 camel_medium_set_content_object ((CamelMedium *)dw, content);
 136                 camel_object_unref (content);
 137         }
 138
 139         g_free (encoding);
 140 }