path: root/camel/camel-mime-part-utils.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; fill-column: 160 -*- */
/* camel-mime-part-utils : Utility for mime parsing and so on
 *
 * Authors: Bertrand Guiheneuf <bertrand@helixcode.com>
 *          Michael Zucchi <notzed@ximian.com>
 *          Jeffrey Stedfast <fejj@ximian.com>
 *
 * Copyright 1999-2003 Ximian, Inc. (www.ximian.com)
 *
 * This program is free software; you can redistribute it and/or 
 * modify it under the terms of version 2 of the GNU General Public 
 * License as published by the Free Software Foundation.
 *
 * 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
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <ctype.h>
#include <errno.h>

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

#include "camel-charset-map.h"
#include "camel-mime-part-utils.h"
#include "camel-mime-message.h"
#include "camel-multipart.h"
#include "camel-multipart-signed.h"
#include "camel-multipart-encrypted.h"
#include "camel-seekable-substream.h"
#include "camel-stream-fs.h"
#include "camel-stream-filter.h"
#include "camel-stream-mem.h"
#include "camel-mime-filter-basic.h"
#include "camel-mime-filter-charset.h"
#include "camel-mime-filter-crlf.h"
#include "camel-mime-filter-save.h"
#include "camel-html-parser.h"

#define d(x) /*(printf("%s(%d): ", __FILE__, __LINE__),(x))
           #include <stdio.h>*/

/* simple data wrapper */
static void
simple_data_wrapper_construct_from_parser (CamelDataWrapper *dw, CamelMimeParser *mp)
{
    struct _header_content_type *ct;
    const char *charset = NULL;
    char *encoding, *buf;
    GByteArray *buffer;
    CamelStream *mem;
    size_t len;
    
    d(printf ("simple_data_wrapper_construct_from_parser()\n"));
    
    /* first, work out conversion, if any, required, we dont care about what we dont know about */
    encoding = header_content_encoding_decode (camel_mime_parser_header (mp, "Content-Transfer-Encoding", NULL));
    
    /* read in the entire content */
    buffer = g_byte_array_new ();
    while (camel_mime_parser_step (mp, &buf, &len) != HSCAN_BODY_END) {
        d(printf("appending o/p data: %d: %.*s\n", len, len, buf));
        g_byte_array_append (buffer, buf, len);
    }
    
    d(printf("message part kept in memory!\n"));
    
    mem = camel_stream_mem_new_with_byte_array (buffer);
    camel_data_wrapper_construct_from_stream (dw, mem);
    camel_object_unref (mem);
    
    if (encoding) {
        if (!strcasecmp (encoding, "base64")) {
            dw->encoding = CAMEL_MIME_PART_ENCODING_BASE64;
        } else if (!strcasecmp (encoding, "quoted-printable")) {
            dw->encoding = CAMEL_MIME_PART_ENCODING_QUOTEDPRINTABLE;
        } else if (!strcasecmp (encoding, "x-uuencode")) {
            dw->encoding = CAMEL_MIME_PART_ENCODING_UUENCODE;
        }
        g_free (encoding);
    }
}

/* This replaces the data wrapper repository ... and/or could be replaced by it? */
void
camel_mime_part_construct_content_from_parser (CamelMimePart *dw, CamelMimeParser *mp)
{
    CamelDataWrapper *content = NULL;
    CamelContentType *ct;
    
    ct = camel_mime_parser_content_type (mp);
    
    switch (camel_mime_parser_state (mp)) {
    case HSCAN_HEADER:
        d(printf("Creating body part\n"));
        /* multipart/signed is some fucked up type that we must treat as binary data, fun huh, idiots. */
        if (header_content_type_is (ct, "multipart", "signed")) {
            content = (CamelDataWrapper *) camel_multipart_signed_new ();
            camel_multipart_construct_from_parser ((CamelMultipart *) content, mp);
        } else {
            content = camel_data_wrapper_new ();
            simple_data_wrapper_construct_from_parser (content, mp);
        }
        break;
    case HSCAN_MESSAGE:
        d(printf("Creating message part\n"));
        content = (CamelDataWrapper *) camel_mime_message_new ();
        camel_mime_part_construct_from_parser ((CamelMimePart *)content, mp);
        break;
    case HSCAN_MULTIPART:
        d(printf("Creating multi-part\n"));
        if (header_content_type_is (ct, "multipart", "encrypted"))
            content = (CamelDataWrapper *) camel_multipart_encrypted_new ();
        else if (header_content_type_is (ct, "multipart", "signed"))
            content = (CamelDataWrapper *) camel_multipart_signed_new ();
        else
            content = (CamelDataWrapper *) camel_multipart_new ();
        
        camel_multipart_construct_from_parser((CamelMultipart *)content, mp);
        d(printf("Created multi-part\n"));
        break;
    default:
        g_warning("Invalid state encountered???: %d", camel_mime_parser_state (mp));
    }
    if (content) {
        /* would you believe you have to set this BEFORE you set the content object???  oh my god !!!! */
        camel_data_wrapper_set_mime_type_field (content, camel_mime_part_get_content_type (dw));
        camel_medium_set_content_object ((CamelMedium *)dw, content);
        camel_object_unref (content);
    }
}