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-rw-r--r--camel/camel-data-wrapper.c290
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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; -*- */
-/* camel-data-wrapper.c : Abstract class for a data_wrapper */
-
-/*
- *
- * Authors: Bertrand Guiheneuf <bertrand@helixcode.com>
- *
- * Copyright 1999, 2000 Helix Code, Inc. (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 "camel-data-wrapper.h"
-#include "camel-mime-utils.h"
-#include "camel-stream.h"
-#include "camel-exception.h"
-
-#include <errno.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 int write_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream);
-static void set_mime_type (CamelDataWrapper *data_wrapper, const gchar *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 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->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;
-}
-
-static void
-camel_data_wrapper_init (gpointer object, gpointer klass)
-{
- CamelDataWrapper *camel_data_wrapper = CAMEL_DATA_WRAPPER (object);
-
- camel_data_wrapper->mime_type = header_content_type_new ("application", "octet-stream");
- camel_data_wrapper->offline = FALSE;
-}
-
-static void
-camel_data_wrapper_finalize (CamelObject *object)
-{
- CamelDataWrapper *camel_data_wrapper = CAMEL_DATA_WRAPPER (object);
-
- if (camel_data_wrapper->mime_type)
- header_content_type_unref (camel_data_wrapper->mime_type);
-
- if (camel_data_wrapper->stream)
- camel_object_unref (CAMEL_OBJECT (camel_data_wrapper->stream));
-}
-
-CamelType
-camel_data_wrapper_get_type (void)
-{
- static CamelType camel_data_wrapper_type = CAMEL_INVALID_TYPE;
-
- if (camel_data_wrapper_type == CAMEL_INVALID_TYPE) {
- camel_data_wrapper_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 camel_data_wrapper_type;
-}
-
-static int
-write_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream)
-{
- if (data_wrapper->stream == NULL) {
- return -1;
- }
-
- if (camel_stream_reset (data_wrapper->stream) == -1)
- return -1;
-
- return camel_stream_write_to_stream (data_wrapper->stream, stream);
-}
-
-CamelDataWrapper *
-camel_data_wrapper_new(void)
-{
- return (CamelDataWrapper *)camel_object_new(camel_data_wrapper_get_type());
-}
-
-/**
- * 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_construct_from_stream().
- *
- * Return value: the number of bytes written, or -1 if an error occurs.
- **/
-int
-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 int
-construct_from_stream (CamelDataWrapper *data_wrapper, CamelStream *stream)
-{
- if (data_wrapper->stream)
- camel_object_unref((CamelObject *)data_wrapper->stream);
-
- data_wrapper->stream = stream;
- camel_object_ref (CAMEL_OBJECT (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 gchar *mime_type)
-{
- if (data_wrapper->mime_type)
- header_content_type_unref (data_wrapper->mime_type);
- data_wrapper->mime_type = header_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 gchar *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 gchar *
-get_mime_type (CamelDataWrapper *data_wrapper)
-{
- return header_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.
- **/
-gchar *
-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)
-{
- g_return_if_fail (CAMEL_IS_DATA_WRAPPER (data_wrapper));
- g_return_if_fail (mime_type != NULL);
-
- if (data_wrapper->mime_type)
- header_content_type_unref (data_wrapper->mime_type);
- data_wrapper->mime_type = mime_type;
- if (mime_type)
- header_content_type_ref (data_wrapper->mime_type);
-}
-
-void
-camel_data_wrapper_set_mime_type_field (CamelDataWrapper *data_wrapper,
- CamelContentType *mime_type)
-{
- CDW_CLASS (data_wrapper)->set_mime_type_field (data_wrapper, mime_type);
-}
-
-
-/**
- * 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 data_wrapper->offline;
-}
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