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

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* camel-mime-part-utils : Utility for mime parsing and so on */


/* 
 *
 * Author : 
 *  Bertrand Guiheneuf <bertrand@helixcode.com>
 *
 * Copyright 1999, 2000 HelixCode (http://www.helixcode.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 2 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 <config.h>
#include "gmime-content-field.h"
#include "string-utils.h"
#include "camel-log.h"
#include "gmime-utils.h"
#include "camel-simple-data-wrapper.h"
#include "data-wrapper-repository.h" 
 
#include "camel-mime-part-utils.h"



/* declare this function because it is public
   but it must not be called except here */
void        camel_mime_part_set_content_type              (CamelMimePart *mime_part, 
                               gchar *content_type);


void
camel_mime_part_construct_headers_from_stream (CamelMimePart *mime_part, 
                           CamelStream *stream)
{
    GArray *header_array;
    Rfc822Header *cur_header;
    int i;

    CAMEL_LOG_FULL_DEBUG ("CamelMimePartUtils:: "
                  "Entering _construct_headers_from_stream\n");
    g_assert (stream);
    CAMEL_LOG_FULL_DEBUG ("CamelMimePartUtils::construct_headers_from_stream "
                  "parsing headers\n");
    /* 
     * parse all header lines 
     */
    header_array = get_header_array_from_stream (stream);
    if (header_array) {
        for (i=0; i<header_array->len; i++) {
            cur_header = (Rfc822Header *)header_array->data + i;
            camel_medium_add_header ( CAMEL_MEDIUM (mime_part), 
                          cur_header->name, 
                          cur_header->value);
    }   

    g_array_free (header_array, TRUE);

    CAMEL_LOG_FULL_DEBUG ("CamelMimePartUtils::construct_headers_from_stream "
                  "headers parsed. Leaving \n");
    }
}





void
camel_mime_part_construct_content_from_stream (CamelMimePart *mime_part, 
                           CamelStream *stream)
{
    GMimeContentField *content_type = NULL;
    gchar *mime_type = NULL;
    GtkType content_object_type;
    CamelDataWrapper *content_object = NULL;
    
    /* 
     * find content mime type 
     */
    CAMEL_LOG_FULL_DEBUG ("CamelMimePartUtils::construct_content_from_stream "
                  "parsing content\n");

    content_type = camel_mime_part_get_content_type (mime_part);
    /* here we should have a mime type */
    g_assert (content_type);
    if (content_type)
        mime_type = gmime_content_field_get_mime_type (content_type);

    /* 
     * no mime type found for the content, 
     * using text/plain is the default 
     */
    if (!mime_type) {
        CAMEL_LOG_FULL_DEBUG ("CamelMimePartUtils::construct_content_from_stream "
                      "content type field not found " 
                      "using default \"text/plain\"\n");
        mime_type = g_strdup ("text/plain");
        camel_mime_part_set_content_type (mime_part, mime_type);
    }
    
    /* 
     * find in the repository what particular data wrapper is 
     * associated to this mime type 
     */
    content_object_type = 
        data_wrapper_repository_get_data_wrapper_type (mime_type);
    
    CAMEL_LOG_FULL_DEBUG ("CamelMimePartUtils::construct_content_from_stream content"
                  " type object type used: %s\n", 
                  gtk_type_name (content_object_type));

    g_free (mime_type);

    /* 
     * create the content object data wrapper with the type 
     * returned by the data wrapper repository 
     */
    content_object = CAMEL_DATA_WRAPPER (gtk_type_new (content_object_type));
    camel_data_wrapper_set_mime_type_field (content_object, 
                        camel_mime_part_get_content_type (mime_part));
    camel_medium_set_content_object ( CAMEL_MEDIUM (mime_part), content_object);

    /* set the input stream for the content object */
    camel_data_wrapper_set_input_stream (content_object, stream);

    /* 
     * the object is referenced in the set_content_object method, 
     * so unref it here 
     */
    gtk_object_unref (GTK_OBJECT (content_object));
    
    
    CAMEL_LOG_FULL_DEBUG ("CamelMimePartUtils::construct_content_from_stream "
                  "content parsed\n");
        
    CAMEL_LOG_FULL_DEBUG ("CamelMimePartUtils:: Leaving _construct_content_from_stream\n");
}



void
camel_mime_part_store_stream_in_buffer (CamelMimePart *mime_part, 
                    CamelStream *stream)
{
    gint nb_bytes_read_total = 0;
    gint nb_bytes_read_chunk;
    GByteArray *buffer;
#define STREAM_READ_CHUNK_SZ  100

    CAMEL_LOG_FULL_DEBUG ("CamelMimePartUtils::store_stream_in_buffer entering\n");

    if (mime_part->temp_message_buffer == NULL)
        mime_part->temp_message_buffer = g_byte_array_new ();
    
    buffer = mime_part->temp_message_buffer;

    g_byte_array_set_size (buffer, nb_bytes_read_total + STREAM_READ_CHUNK_SZ);
    nb_bytes_read_chunk = camel_stream_read (stream,
                         buffer->data + nb_bytes_read_total, 
                         STREAM_READ_CHUNK_SZ);

    if (nb_bytes_read_chunk>0) {
        nb_bytes_read_total += nb_bytes_read_chunk;
        
        while (nb_bytes_read_chunk >0) {
            g_byte_array_set_size (buffer, nb_bytes_read_total + STREAM_READ_CHUNK_SZ);
            nb_bytes_read_chunk = camel_stream_read (stream,
                                 buffer->data + nb_bytes_read_total, 
                                 STREAM_READ_CHUNK_SZ);
            nb_bytes_read_total += nb_bytes_read_chunk;
        }
    }

    g_byte_array_set_size (buffer, nb_bytes_read_total);
    CAMEL_LOG_FULL_DEBUG ("CamelMimePartUtils::store_stream_in_buffer entering\n");

}