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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; -*- */
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* Authors: Bertrand Guiheneuf <bertrand@helixcode.com>
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* Copyright 1999-2003 Ximian, Inc. (www.ximian.com)
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU Lesser General Public
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* License as published by the Free Software Foundation.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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#include "camel-data-wrapper.h"
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#include "camel-exception.h"
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#include "camel-mime-filter-basic.h"
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#include "camel-mime-filter-crlf.h"
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#include "camel-private.h"
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#include "camel-stream-filter.h"
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#include "camel-stream.h"
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static CamelObjectClass *parent_class = NULL;
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/* Returns the class for a CamelDataWrapper */
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#define CDW_CLASS(so) CAMEL_DATA_WRAPPER_CLASS (CAMEL_OBJECT_GET_CLASS(so))
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static int construct_from_stream(CamelDataWrapper *, CamelStream *);
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static ssize_t write_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream);
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static ssize_t decode_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream);
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static void set_mime_type (CamelDataWrapper *data_wrapper, const char *mime_type);
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static gchar *get_mime_type (CamelDataWrapper *data_wrapper);
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static CamelContentType *get_mime_type_field (CamelDataWrapper *data_wrapper);
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static void set_mime_type_field (CamelDataWrapper *data_wrapper, CamelContentType *mime_type);
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static gboolean is_offline (CamelDataWrapper *data_wrapper);
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camel_data_wrapper_class_init (CamelDataWrapperClass *camel_data_wrapper_class)
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parent_class = camel_type_get_global_classfuncs (camel_object_get_type ());
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/* virtual method definition */
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camel_data_wrapper_class->write_to_stream = write_to_stream;
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camel_data_wrapper_class->decode_to_stream = decode_to_stream;
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camel_data_wrapper_class->set_mime_type = set_mime_type;
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camel_data_wrapper_class->get_mime_type = get_mime_type;
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camel_data_wrapper_class->get_mime_type_field = get_mime_type_field;
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camel_data_wrapper_class->set_mime_type_field = set_mime_type_field;
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camel_data_wrapper_class->construct_from_stream = construct_from_stream;
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camel_data_wrapper_class->is_offline = is_offline;
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camel_data_wrapper_init (gpointer object, gpointer klass)
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CamelDataWrapper *camel_data_wrapper = CAMEL_DATA_WRAPPER (object);
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camel_data_wrapper->priv = g_malloc (sizeof (struct _CamelDataWrapperPrivate));
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pthread_mutex_init (&camel_data_wrapper->priv->stream_lock, NULL);
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camel_data_wrapper->mime_type = camel_content_type_new ("application", "octet-stream");
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camel_data_wrapper->encoding = CAMEL_TRANSFER_ENCODING_DEFAULT;
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camel_data_wrapper->offline = FALSE;
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camel_data_wrapper_finalize (CamelObject *object)
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CamelDataWrapper *camel_data_wrapper = CAMEL_DATA_WRAPPER (object);
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pthread_mutex_destroy (&camel_data_wrapper->priv->stream_lock);
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g_free (camel_data_wrapper->priv);
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if (camel_data_wrapper->mime_type)
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camel_content_type_unref (camel_data_wrapper->mime_type);
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if (camel_data_wrapper->stream)
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camel_object_unref (camel_data_wrapper->stream);
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camel_data_wrapper_get_type (void)
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static CamelType type = CAMEL_INVALID_TYPE;
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if (type == CAMEL_INVALID_TYPE) {
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type = camel_type_register (CAMEL_OBJECT_TYPE,
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sizeof (CamelDataWrapper),
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sizeof (CamelDataWrapperClass),
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(CamelObjectClassInitFunc) camel_data_wrapper_class_init,
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(CamelObjectInitFunc) camel_data_wrapper_init,
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(CamelObjectFinalizeFunc) camel_data_wrapper_finalize);
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* camel_data_wrapper_new:
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* Create a new #CamelDataWrapper object.
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* Returns a new #CamelDataWrapper object
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camel_data_wrapper_new (void)
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return (CamelDataWrapper *) camel_object_new (CAMEL_DATA_WRAPPER_TYPE);
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write_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream)
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if (data_wrapper->stream == NULL) {
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CAMEL_DATA_WRAPPER_LOCK (data_wrapper, stream_lock);
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if (camel_stream_reset (data_wrapper->stream) == -1) {
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CAMEL_DATA_WRAPPER_UNLOCK (data_wrapper, stream_lock);
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ret = camel_stream_write_to_stream (data_wrapper->stream, stream);
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CAMEL_DATA_WRAPPER_UNLOCK (data_wrapper, stream_lock);
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* camel_data_wrapper_write_to_stream:
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* @data_wrapper: a #CamelDataWrapper object
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* @stream: a #CamelStream for output
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* Writes the content of @data_wrapper to @stream in a machine-independent
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* format appropriate for the data. It should be possible to construct an
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* equivalent data wrapper object later by passing this stream to
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* #camel_data_wrapper_construct_from_stream.
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* Returns the number of bytes written, or %-1 on fail
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camel_data_wrapper_write_to_stream (CamelDataWrapper *data_wrapper,
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g_return_val_if_fail (CAMEL_IS_DATA_WRAPPER (data_wrapper), -1);
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g_return_val_if_fail (CAMEL_IS_STREAM (stream), -1);
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return CDW_CLASS (data_wrapper)->write_to_stream (data_wrapper, stream);
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decode_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream)
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CamelMimeFilter *filter;
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CamelStream *fstream;
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fstream = (CamelStream *) camel_stream_filter_new_with_stream (stream);
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switch (data_wrapper->encoding) {
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case CAMEL_TRANSFER_ENCODING_BASE64:
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filter = (CamelMimeFilter *) camel_mime_filter_basic_new_type (CAMEL_MIME_FILTER_BASIC_BASE64_DEC);
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camel_stream_filter_add (CAMEL_STREAM_FILTER (fstream), filter);
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camel_object_unref (filter);
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case CAMEL_TRANSFER_ENCODING_QUOTEDPRINTABLE:
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filter = (CamelMimeFilter *) camel_mime_filter_basic_new_type (CAMEL_MIME_FILTER_BASIC_QP_DEC);
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camel_stream_filter_add (CAMEL_STREAM_FILTER (fstream), filter);
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camel_object_unref (filter);
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case CAMEL_TRANSFER_ENCODING_UUENCODE:
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filter = (CamelMimeFilter *) camel_mime_filter_basic_new_type (CAMEL_MIME_FILTER_BASIC_UU_DEC);
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camel_stream_filter_add (CAMEL_STREAM_FILTER (fstream), filter);
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camel_object_unref (filter);
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if (camel_content_type_is (data_wrapper->mime_type, "text", "*")) {
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filter = camel_mime_filter_crlf_new (CAMEL_MIME_FILTER_CRLF_DECODE,
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CAMEL_MIME_FILTER_CRLF_MODE_CRLF_ONLY);
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camel_stream_filter_add (CAMEL_STREAM_FILTER (fstream), filter);
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camel_object_unref (filter);
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ret = camel_data_wrapper_write_to_stream (data_wrapper, fstream);
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camel_stream_flush (fstream);
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camel_object_unref (fstream);
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* camel_data_wrapper_decode_to_stream:
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* @data_wrapper: a #CamelDataWrapper object
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* @stream: a #CamelStream for decoded data to be written to
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* Writes the decoded data content to @stream.
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* Returns the number of bytes written, or %-1 on fail
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camel_data_wrapper_decode_to_stream (CamelDataWrapper *data_wrapper,
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g_return_val_if_fail (CAMEL_IS_DATA_WRAPPER (data_wrapper), -1);
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g_return_val_if_fail (CAMEL_IS_STREAM (stream), -1);
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return CDW_CLASS (data_wrapper)->decode_to_stream (data_wrapper, stream);
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construct_from_stream (CamelDataWrapper *data_wrapper, CamelStream *stream)
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if (data_wrapper->stream)
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camel_object_unref (data_wrapper->stream);
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data_wrapper->stream = stream;
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camel_object_ref (stream);
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* camel_data_wrapper_construct_from_stream:
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* @data_wrapper: a #CamelDataWrapper object
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* @stream: an input #CamelStream
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* Constructs the content of @data_wrapper from the supplied @stream.
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* Returns %0 on success or %-1 on fail
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camel_data_wrapper_construct_from_stream (CamelDataWrapper *data_wrapper,
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g_return_val_if_fail (CAMEL_IS_DATA_WRAPPER (data_wrapper), -1);
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g_return_val_if_fail (CAMEL_IS_STREAM (stream), -1);
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return CDW_CLASS (data_wrapper)->construct_from_stream (data_wrapper, stream);
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set_mime_type (CamelDataWrapper *data_wrapper, const char *mime_type)
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if (data_wrapper->mime_type)
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camel_content_type_unref (data_wrapper->mime_type);
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data_wrapper->mime_type = camel_content_type_decode (mime_type);
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* camel_data_wrapper_set_mime_type:
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* @data_wrapper: a #CamelDataWrapper object
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* @mime_type: a MIME type
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* This sets the data wrapper's MIME type.
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* It might fail, but you won't know. It will allow you to set
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* Content-Type parameters on the data wrapper, which are meaningless.
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* You should not be allowed to change the MIME type of a data wrapper
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* that contains data, or at least, if you do, it should invalidate the
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camel_data_wrapper_set_mime_type (CamelDataWrapper *data_wrapper,
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const char *mime_type)
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g_return_if_fail (CAMEL_IS_DATA_WRAPPER (data_wrapper));
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g_return_if_fail (mime_type != NULL);
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CDW_CLASS (data_wrapper)->set_mime_type (data_wrapper, mime_type);
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get_mime_type (CamelDataWrapper *data_wrapper)
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return camel_content_type_simple (data_wrapper->mime_type);
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* camel_data_wrapper_get_mime_type:
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* @data_wrapper: a #CamelDataWrapper object
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* Returns the MIME type which must be freed by the caller
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camel_data_wrapper_get_mime_type (CamelDataWrapper *data_wrapper)
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g_return_val_if_fail (CAMEL_IS_DATA_WRAPPER (data_wrapper), NULL);
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return CDW_CLASS (data_wrapper)->get_mime_type (data_wrapper);
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static CamelContentType *
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get_mime_type_field (CamelDataWrapper *data_wrapper)
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return data_wrapper->mime_type;
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* camel_data_wrapper_get_mime_type_field:
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* @data_wrapper: a #CamelDataWrapper object
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* Returns the parsed form of the data wrapper's MIME type
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camel_data_wrapper_get_mime_type_field (CamelDataWrapper *data_wrapper)
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g_return_val_if_fail (CAMEL_IS_DATA_WRAPPER (data_wrapper), NULL);
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return CDW_CLASS (data_wrapper)->get_mime_type_field (data_wrapper);
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set_mime_type_field (CamelDataWrapper *data_wrapper,
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CamelContentType *mime_type)
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camel_content_type_ref (mime_type);
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if (data_wrapper->mime_type)
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camel_content_type_unref (data_wrapper->mime_type);
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data_wrapper->mime_type = mime_type;
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* camel_data_wrapper_set_mime_type_field:
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* @data_wrapper: a #CamelDataWrapper object
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* @mime_type: a #CamelContentType
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* This sets the data wrapper's MIME type. It suffers from the same
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* flaws as #camel_data_wrapper_set_mime_type.
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camel_data_wrapper_set_mime_type_field (CamelDataWrapper *data_wrapper,
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CamelContentType *mime_type)
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g_return_if_fail (CAMEL_IS_DATA_WRAPPER (data_wrapper));
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g_return_if_fail (mime_type != NULL);
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CDW_CLASS (data_wrapper)->set_mime_type_field (data_wrapper, mime_type);
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is_offline (CamelDataWrapper *data_wrapper)
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return data_wrapper->offline;
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* camel_data_wrapper_is_offline:
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* @data_wrapper: a #CamelDataWrapper object
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* Returns whether @data_wrapper is "offline" (data stored
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* remotely) or not. Some optional code paths may choose to not
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* operate on offline data.
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camel_data_wrapper_is_offline (CamelDataWrapper *data_wrapper)
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return CDW_CLASS (data_wrapper)->is_offline (data_wrapper);