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164 lines
3.9 KiB
C
164 lines
3.9 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "xp.h"
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#include "plstr.h"
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#include "prmem.h"
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#include "net.h"
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#include "netutils.h"
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#include "mkselect.h"
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#include "mktcp.h"
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#include "mkgeturl.h"
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#include "mkstream.h"
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#include "dataurl.h"
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#include "cvmime.h"
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extern int MK_OUT_OF_MEMORY;
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extern int MK_MALFORMED_URL_ERROR;
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/* format of the DATA: URL
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*
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* data:[CONTENT-TYPE][;base64],DATA
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*/
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PRIVATE int32
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net_DataURLLoad (ActiveEntry * ce)
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{
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char *data_buffer;
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XP_Bool is_base64 = FALSE;
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NET_StreamClass *stream;
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char *comma;
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ce->protocol = DATA_TYPE_URL;
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/* we need a buffer equal to or smaller than the size of the URL
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*/
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data_buffer = (char *)PR_Malloc(PL_strlen(ce->URL_s->address)+1);
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if(!data_buffer)
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return(MK_OUT_OF_MEMORY);
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/* determine the content type */
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/* find the first comma */
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comma = PL_strchr(ce->URL_s->address, ',');
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/* if no comma abort */
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if(!comma)
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{
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ce->URL_s->error_msg = NET_ExplainErrorDetails(MK_MALFORMED_URL_ERROR, ce->URL_s->address);
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return(MK_MALFORMED_URL_ERROR);
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}
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/* fill in default content type */
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StrAllocCopy(ce->URL_s->content_type, TEXT_PLAIN);
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/* check for a content type */
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if(comma != ce->URL_s->address + PL_strlen("data:"))
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{
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*comma = '\0';
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PL_strcpy(data_buffer, ce->URL_s->address + PL_strlen("data:"));
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*comma = ',';
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/* check for base 64 encoding */
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if(PL_strcasestr(data_buffer, "base64"))
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is_base64 = TRUE;
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/* parse the rest as a content-type */
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NET_ParseContentTypeHeader(ce->window_id, data_buffer, ce->URL_s, FALSE);
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}
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if(is_base64)
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{
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stream = NET_MimeEncodingConverter(ce->format_out, ENCODING_BASE64, ce->URL_s, ce->window_id);
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}
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else
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{
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/* open the outgoing stream
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*/
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stream = NET_StreamBuilder(ce->format_out, ce->URL_s, ce->window_id);
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}
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if(!stream)
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{
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ce->URL_s->error_msg = NET_ExplainErrorDetails(MK_UNABLE_TO_CONVERT);
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ce->status = MK_UNABLE_TO_CONVERT;
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return (ce->status);
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}
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/* @@@@ bug: ignore is_write_ready */
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/* copy the data part of the URL into a scratch buffer */
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PL_strcpy(data_buffer, comma+1);
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ce->status = (*stream->put_block)(stream,
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data_buffer,
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PL_strlen(data_buffer));
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if(ce->status < 0)
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{
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(*stream->abort)(stream, ce->status);
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return (ce->status);
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}
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(*stream->complete)(stream);
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ce->status = MK_DATA_LOADED;
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return(-1); /* all done */
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}
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/* called repeatedly from NET_ProcessNet to push all the
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* data up the stream
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*/
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PRIVATE int32
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net_ProcessDataURL (ActiveEntry * cur_entry)
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{
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PR_ASSERT(0);
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return(-1);
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}
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/* called by functions in mkgeturl to interrupt the loading of
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* an object. (Usually a user interrupt)
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*/
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PRIVATE int32
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net_InterruptDataURL (ActiveEntry * cur_entry)
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{
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PR_ASSERT(0);
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return(-1);
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}
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PRIVATE void
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net_CleanupDataURL(void)
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{
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}
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MODULE_PRIVATE void
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NET_InitDataURLProtocol(void)
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{
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static NET_ProtoImpl dataurl_proto_impl;
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dataurl_proto_impl.init = net_DataURLLoad;
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dataurl_proto_impl.process = net_ProcessDataURL;
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dataurl_proto_impl.interrupt = net_InterruptDataURL;
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dataurl_proto_impl.cleanup = net_CleanupDataURL;
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NET_RegisterProtocolImplementation(&dataurl_proto_impl, DATA_TYPE_URL);
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}
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