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-rw-r--r--camel/camel-data-wrapper.c389
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diff --git a/camel/camel-data-wrapper.c b/camel/camel-data-wrapper.c
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-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; -*- */
-/*
- *
- * Authors: Bertrand Guiheneuf <bertrand@helixcode.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 <errno.h>
-
-#include "camel-data-wrapper.h"
-#include "camel-stream.h"
-#include "camel-stream-filter.h"
-#include "camel-mime-filter-basic.h"
-#include "camel-mime-filter-crlf.h"
-#include "camel-exception.h"
-#include "camel-private.h"
-
-#define d(x)
-
-static CamelObjectClass *parent_class = NULL;
-
-/* Returns the class for a CamelDataWrapper */
-#define CDW_CLASS(so) CAMEL_DATA_WRAPPER_CLASS (CAMEL_OBJECT_GET_CLASS(so))
-
-static int construct_from_stream(CamelDataWrapper *, CamelStream *);
-static ssize_t write_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream);
-static ssize_t decode_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream);
-static void set_mime_type (CamelDataWrapper *data_wrapper, const char *mime_type);
-static gchar *get_mime_type (CamelDataWrapper *data_wrapper);
-static CamelContentType *get_mime_type_field (CamelDataWrapper *data_wrapper);
-static void set_mime_type_field (CamelDataWrapper *data_wrapper, CamelContentType *mime_type);
-static gboolean is_offline (CamelDataWrapper *data_wrapper);
-
-static void
-camel_data_wrapper_class_init (CamelDataWrapperClass *camel_data_wrapper_class)
-{
- parent_class = camel_type_get_global_classfuncs (camel_object_get_type ());
-
- /* virtual method definition */
- camel_data_wrapper_class->write_to_stream = write_to_stream;
- camel_data_wrapper_class->decode_to_stream = decode_to_stream;
- camel_data_wrapper_class->set_mime_type = set_mime_type;
- camel_data_wrapper_class->get_mime_type = get_mime_type;
- camel_data_wrapper_class->get_mime_type_field = get_mime_type_field;
- camel_data_wrapper_class->set_mime_type_field = set_mime_type_field;
- camel_data_wrapper_class->construct_from_stream = construct_from_stream;
- camel_data_wrapper_class->is_offline = is_offline;
-}
-
-static void
-camel_data_wrapper_init (gpointer object, gpointer klass)
-{
- CamelDataWrapper *camel_data_wrapper = CAMEL_DATA_WRAPPER (object);
-
- camel_data_wrapper->priv = g_malloc (sizeof (struct _CamelDataWrapperPrivate));
- pthread_mutex_init (&camel_data_wrapper->priv->stream_lock, NULL);
-
- camel_data_wrapper->mime_type = camel_content_type_new ("application", "octet-stream");
- camel_data_wrapper->encoding = CAMEL_TRANSFER_ENCODING_DEFAULT;
- camel_data_wrapper->offline = FALSE;
-}
-
-static void
-camel_data_wrapper_finalize (CamelObject *object)
-{
- CamelDataWrapper *camel_data_wrapper = CAMEL_DATA_WRAPPER (object);
-
- pthread_mutex_destroy (&camel_data_wrapper->priv->stream_lock);
-
- g_free (camel_data_wrapper->priv);
-
- if (camel_data_wrapper->mime_type)
- camel_content_type_unref (camel_data_wrapper->mime_type);
-
- if (camel_data_wrapper->stream)
- camel_object_unref (camel_data_wrapper->stream);
-}
-
-CamelType
-camel_data_wrapper_get_type (void)
-{
- static CamelType type = CAMEL_INVALID_TYPE;
-
- if (type == CAMEL_INVALID_TYPE) {
- type = camel_type_register (CAMEL_OBJECT_TYPE,
- "CamelDataWrapper",
- sizeof (CamelDataWrapper),
- sizeof (CamelDataWrapperClass),
- (CamelObjectClassInitFunc) camel_data_wrapper_class_init,
- NULL,
- (CamelObjectInitFunc) camel_data_wrapper_init,
- (CamelObjectFinalizeFunc) camel_data_wrapper_finalize);
- }
-
- return type;
-}
-
-
-CamelDataWrapper *
-camel_data_wrapper_new (void)
-{
- return (CamelDataWrapper *) camel_object_new (CAMEL_DATA_WRAPPER_TYPE);
-}
-
-static ssize_t
-write_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream)
-{
- ssize_t ret;
-
- if (data_wrapper->stream == NULL) {
- return -1;
- }
-
- CAMEL_DATA_WRAPPER_LOCK (data_wrapper, stream_lock);
- if (camel_stream_reset (data_wrapper->stream) == -1) {
- CAMEL_DATA_WRAPPER_UNLOCK (data_wrapper, stream_lock);
- return -1;
- }
-
- ret = camel_stream_write_to_stream (data_wrapper->stream, stream);
-
- CAMEL_DATA_WRAPPER_UNLOCK (data_wrapper, stream_lock);
-
- return ret;
-}
-
-/**
- * camel_data_wrapper_write_to_stream:
- * @data_wrapper: a data wrapper
- * @stream: stream for data to be written to
- * @ex: a CamelException
- *
- * Writes the data content to @stream in a machine-independent format
- * appropriate for the data. It should be possible to construct an
- * equivalent data wrapper object later by passing this stream to
- * camel_data_wrapper_construct_from_stream().
- *
- * Return value: the number of bytes written, or -1 if an error
- * occurs.
- **/
-ssize_t
-camel_data_wrapper_write_to_stream (CamelDataWrapper *data_wrapper,
- CamelStream *stream)
-{
- g_return_val_if_fail (CAMEL_IS_DATA_WRAPPER (data_wrapper), -1);
- g_return_val_if_fail (CAMEL_IS_STREAM (stream), -1);
-
- return CDW_CLASS (data_wrapper)->write_to_stream (data_wrapper, stream);
-}
-
-
-static ssize_t
-decode_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream)
-{
- CamelMimeFilter *filter;
- CamelStream *fstream;
- ssize_t ret;
-
- fstream = (CamelStream *) camel_stream_filter_new_with_stream (stream);
-
- switch (data_wrapper->encoding) {
- case CAMEL_TRANSFER_ENCODING_BASE64:
- filter = (CamelMimeFilter *) camel_mime_filter_basic_new_type (CAMEL_MIME_FILTER_BASIC_BASE64_DEC);
- camel_stream_filter_add (CAMEL_STREAM_FILTER (fstream), filter);
- camel_object_unref (filter);
- break;
- case CAMEL_TRANSFER_ENCODING_QUOTEDPRINTABLE:
- filter = (CamelMimeFilter *) camel_mime_filter_basic_new_type (CAMEL_MIME_FILTER_BASIC_QP_DEC);
- camel_stream_filter_add (CAMEL_STREAM_FILTER (fstream), filter);
- camel_object_unref (filter);
- break;
- case CAMEL_TRANSFER_ENCODING_UUENCODE:
- filter = (CamelMimeFilter *) camel_mime_filter_basic_new_type (CAMEL_MIME_FILTER_BASIC_UU_DEC);
- camel_stream_filter_add (CAMEL_STREAM_FILTER (fstream), filter);
- camel_object_unref (filter);
- break;
- default:
- break;
- }
-
- if (camel_content_type_is (data_wrapper->mime_type, "text", "*")) {
- filter = camel_mime_filter_crlf_new (CAMEL_MIME_FILTER_CRLF_DECODE,
- CAMEL_MIME_FILTER_CRLF_MODE_CRLF_ONLY);
- camel_stream_filter_add (CAMEL_STREAM_FILTER (fstream), filter);
- camel_object_unref (filter);
- }
-
- ret = camel_data_wrapper_write_to_stream (data_wrapper, fstream);
- camel_stream_flush (fstream);
- camel_object_unref (fstream);
-
- return ret;
-}
-
-/**
- * camel_data_wrapper_decode_to_stream:
- * @data_wrapper: a data wrapper
- * @stream: stream for decoded data to be written to
- * @ex: a CamelException
- *
- * Writes the decoded data content to @stream.
- *
- * Return value: the number of bytes written, or -1 if an error
- * occurs.
- **/
-ssize_t
-camel_data_wrapper_decode_to_stream (CamelDataWrapper *data_wrapper,
- CamelStream *stream)
-{
- g_return_val_if_fail (CAMEL_IS_DATA_WRAPPER (data_wrapper), -1);
- g_return_val_if_fail (CAMEL_IS_STREAM (stream), -1);
-
- return CDW_CLASS (data_wrapper)->decode_to_stream (data_wrapper, stream);
-}
-
-
-static int
-construct_from_stream (CamelDataWrapper *data_wrapper, CamelStream *stream)
-{
- if (data_wrapper->stream)
- camel_object_unref (data_wrapper->stream);
-
- data_wrapper->stream = stream;
- camel_object_ref (stream);
- return 0;
-}
-
-/**
- * camel_data_wrapper_construct_from_stream:
- * @data_wrapper: a data wrapper
- * @stream: A stream that can be read from.
- *
- * Constructs the content of the data wrapper from the
- * supplied @stream.
- *
- * Return value: -1 on error.
- **/
-int
-camel_data_wrapper_construct_from_stream (CamelDataWrapper *data_wrapper,
- CamelStream *stream)
-{
- g_return_val_if_fail (CAMEL_IS_DATA_WRAPPER (data_wrapper), -1);
- g_return_val_if_fail (CAMEL_IS_STREAM (stream), -1);
-
- return CDW_CLASS (data_wrapper)->construct_from_stream (data_wrapper, stream);
-}
-
-
-static void
-set_mime_type (CamelDataWrapper *data_wrapper, const char *mime_type)
-{
- if (data_wrapper->mime_type)
- camel_content_type_unref (data_wrapper->mime_type);
- data_wrapper->mime_type = camel_content_type_decode (mime_type);
-}
-
-/**
- * camel_data_wrapper_set_mime_type:
- * @data_wrapper: a data wrapper
- * @mime_type: the text representation of a MIME type
- *
- * This sets the data wrapper's MIME type.
- * It might fail, but you won't know. It will allow you to set
- * Content-Type parameters on the data wrapper, which are meaningless.
- * You should not be allowed to change the MIME type of a data wrapper
- * that contains data, or at least, if you do, it should invalidate the
- * data.
- **/
-void
-camel_data_wrapper_set_mime_type (CamelDataWrapper *data_wrapper,
- const char *mime_type)
-{
- g_return_if_fail (CAMEL_IS_DATA_WRAPPER (data_wrapper));
- g_return_if_fail (mime_type != NULL);
-
- CDW_CLASS (data_wrapper)->set_mime_type (data_wrapper, mime_type);
-}
-
-static char *
-get_mime_type (CamelDataWrapper *data_wrapper)
-{
- return camel_content_type_simple (data_wrapper->mime_type);
-}
-
-/**
- * camel_data_wrapper_get_mime_type:
- * @data_wrapper: a data wrapper
- *
- * Return value: the text form of the data wrapper's MIME type,
- * which the caller must free.
- **/
-char *
-camel_data_wrapper_get_mime_type (CamelDataWrapper *data_wrapper)
-{
- g_return_val_if_fail (CAMEL_IS_DATA_WRAPPER (data_wrapper), NULL);
-
- return CDW_CLASS (data_wrapper)->get_mime_type (data_wrapper);
-}
-
-
-static CamelContentType *
-get_mime_type_field (CamelDataWrapper *data_wrapper)
-{
- return data_wrapper->mime_type;
-}
-
-/**
- * camel_data_wrapper_get_mime_type_field:
- * @data_wrapper: a data wrapper
- *
- * Return value: the parsed form of the data wrapper's MIME type
- **/
-CamelContentType *
-camel_data_wrapper_get_mime_type_field (CamelDataWrapper *data_wrapper)
-{
- g_return_val_if_fail (CAMEL_IS_DATA_WRAPPER (data_wrapper), NULL);
-
- return CDW_CLASS (data_wrapper)->get_mime_type_field (data_wrapper);
-}
-
-/**
- * camel_data_wrapper_set_mime_type_field:
- * @data_wrapper: a data wrapper
- * @mime_type: the parsed representation of a MIME type
- *
- * This sets the data wrapper's MIME type. It suffers from the same
- * flaws as camel_data_wrapper_set_mime_type.
- **/
-static void
-set_mime_type_field (CamelDataWrapper *data_wrapper,
- CamelContentType *mime_type)
-{
- if (mime_type)
- camel_content_type_ref (mime_type);
- if (data_wrapper->mime_type)
- camel_content_type_unref (data_wrapper->mime_type);
- data_wrapper->mime_type = mime_type;
-}
-
-void
-camel_data_wrapper_set_mime_type_field (CamelDataWrapper *data_wrapper,
- CamelContentType *mime_type)
-{
- g_return_if_fail (CAMEL_IS_DATA_WRAPPER (data_wrapper));
- g_return_if_fail (mime_type != NULL);
-
- CDW_CLASS (data_wrapper)->set_mime_type_field (data_wrapper, mime_type);
-}
-
-
-static gboolean
-is_offline (CamelDataWrapper *data_wrapper)
-{
- return data_wrapper->offline;
-}
-
-/**
- * camel_data_wrapper_is_offline:
- * @data_wrapper: a data wrapper
- *
- * Return value: whether @data_wrapper is "offline" (data stored
- * remotely) or not. Some optional code paths may choose to not
- * operate on offline data.
- **/
-gboolean
-camel_data_wrapper_is_offline (CamelDataWrapper *data_wrapper)
-{
- return CDW_CLASS (data_wrapper)->is_offline (data_wrapper);
-}