summaryrefslogtreecommitdiffstats
path: root/khtml/ecma/xmlhttprequest.cpp
blob: a2095769f76c609f8427a5055f182a17189d4385 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
// -*- c-basic-offset: 2 -*-
/*
 *  This file is part of the KDE libraries
 *  Copyright (C) 2003 Apple Computer, Inc.
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include "xmlhttprequest.h"
#include "xmlhttprequest.lut.h"
#include "kjs_window.h"
#include "kjs_events.h"

#include "dom/dom_doc.h"
#include "dom/dom_exception.h"
#include "dom/dom_string.h"
#include "misc/loader.h"
#include "html/html_documentimpl.h"
#include "xml/dom2_eventsimpl.h"

#include "khtml_part.h"
#include "khtmlview.h"

#include <kio/scheduler.h>
#include <kio/job.h>
#include <tqobject.h>
#include <kdebug.h>

#ifdef APPLE_CHANGES
#include "KWQLoader.h"
#else
#include <kio/netaccess.h>
using KIO::NetAccess;
#endif

#define BANNED_HTTP_HEADERS "authorization,proxy-authorization,"\
                            "content-length,host,connect,copy,move,"\
                            "delete,head,trace,put,propfind,proppatch,"\
                            "mkcol,lock,unlock,options,via,"\
                            "accept-charset,accept-encoding,expect,date,"\
                            "keep-alive,te,trailer,"\
                            "transfer-encoding,upgrade"

using khtml::Decoder;

namespace KJS {

////////////////////// XMLHttpRequest Object ////////////////////////

/* Source for XMLHttpRequestProtoTable.
@begin XMLHttpRequestProtoTable 7
  abort			XMLHttpRequest::Abort			DontDelete|Function 0
  getAllResponseHeaders	XMLHttpRequest::GetAllResponseHeaders	DontDelete|Function 0
  getResponseHeader	XMLHttpRequest::GetResponseHeader	DontDelete|Function 1
  open			XMLHttpRequest::Open			DontDelete|Function 5
  overrideMimeType	XMLHttpRequest::OverrideMIMEType	DontDelete|Function 1
  send			XMLHttpRequest::Send			DontDelete|Function 1
  setRequestHeader	XMLHttpRequest::SetRequestHeader	DontDelete|Function 2
@end
*/
KJS_DEFINE_PROTOTYPE(XMLHttpRequestProto)
IMPLEMENT_PROTOFUNC_DOM(XMLHttpRequestProtoFunc)
KJS_IMPLEMENT_PROTOTYPE("XMLHttpRequest", XMLHttpRequestProto,XMLHttpRequestProtoFunc)


XMLHttpRequestQObject::XMLHttpRequestQObject(XMLHttpRequest *_jsObject)
{
  jsObject = _jsObject;
}

#ifdef APPLE_CHANGES
void XMLHttpRequestQObject::slotData( KIO::Job* job, const char *data, int size )
{
  jsObject->slotData(job, data, size);
}
#else
void XMLHttpRequestQObject::slotData( KIO::Job* job, const TQByteArray &data )
{
  jsObject->slotData(job, data);
}
#endif

void XMLHttpRequestQObject::slotFinished( KIO::Job* job )
{
  jsObject->slotFinished(job);
}

void XMLHttpRequestQObject::slotRedirection( KIO::Job* job, const KURL& url)
{
  jsObject->slotRedirection( job, url );
}

XMLHttpRequestConstructorImp::XMLHttpRequestConstructorImp(ExecState *, const DOM::Document &d)
    : ObjectImp(), doc(d)
{
}

bool XMLHttpRequestConstructorImp::implementsConstruct() const
{
  return true;
}

Object XMLHttpRequestConstructorImp::construct(ExecState *exec, const List &)
{
  return Object(new XMLHttpRequest(exec, doc));
}

const ClassInfo XMLHttpRequest::info = { "XMLHttpRequest", 0, &XMLHttpRequestTable, 0 };


/* Source for XMLHttpRequestTable.
@begin XMLHttpRequestTable 7
  readyState		XMLHttpRequest::ReadyState		DontDelete|ReadOnly
  responseText		XMLHttpRequest::ResponseText		DontDelete|ReadOnly
  responseXML		XMLHttpRequest::ResponseXML		DontDelete|ReadOnly
  status		XMLHttpRequest::Status			DontDelete|ReadOnly
  statusText		XMLHttpRequest::StatusText		DontDelete|ReadOnly
  onreadystatechange	XMLHttpRequest::Onreadystatechange	DontDelete
  onload		XMLHttpRequest::Onload			DontDelete
@end
*/

Value XMLHttpRequest::tryGet(ExecState *exec, const Identifier &propertyName) const
{
  return DOMObjectLookupGetValue<XMLHttpRequest,DOMObject>(exec, propertyName, &XMLHttpRequestTable, this);
}

Value XMLHttpRequest::getValueProperty(ExecState *exec, int token) const
{
  switch (token) {
  case ReadyState:
    return Number(state);
  case ResponseText:
    return getString(DOM::DOMString(response));
  case ResponseXML:
    if (state != Completed) {
      return Null();
    }
    if (!createdDocument) {
      TQString mimeType = "text/xml";

      if (!m_mimeTypeOverride.isEmpty()) {
        mimeType = m_mimeTypeOverride;
      } else {
	  Value header = getResponseHeader("Content-Type");
          if (header.type() != UndefinedType) {
            mimeType = TQStringList::split(";", header.toString(exec).qstring())[0].stripWhiteSpace();
	  }
      }

      if (mimeType == "text/xml" || mimeType == "application/xml" || mimeType == "application/xhtml+xml") {
	responseXML = DOM::Document(doc->implementation()->createDocument());

	DOM::DocumentImpl *docImpl = static_cast<DOM::DocumentImpl *>(responseXML.handle());

	docImpl->open();
	docImpl->write(response);
	docImpl->finishParsing();
	docImpl->close();

	typeIsXML = true;
      } else {
	typeIsXML = false;
      }
      createdDocument = true;
    }

    if (!typeIsXML) {
      return Undefined();
    }

    return getDOMNode(exec,responseXML);
  case Status:
    return getStatus();
  case StatusText:
    return getStatusText();
  case Onreadystatechange:
   if (onReadyStateChangeListener && onReadyStateChangeListener->listenerObjImp()) {
     return onReadyStateChangeListener->listenerObj();
   } else {
     return Null();
   }
  case Onload:
   if (onLoadListener && onLoadListener->listenerObjImp()) {
     return onLoadListener->listenerObj();
   } else {
    return Null();
   }
  default:
    kdWarning() << "XMLHttpRequest::getValueProperty unhandled token " << token << endl;
    return Value();
  }
}

void XMLHttpRequest::tryPut(ExecState *exec, const Identifier &propertyName, const Value& value, int attr)
{
  DOMObjectLookupPut<XMLHttpRequest,DOMObject>(exec, propertyName, value, attr, &XMLHttpRequestTable, this );
}

void XMLHttpRequest::putValueProperty(ExecState *exec, int token, const Value& value, int /*attr*/)
{
  JSEventListener* newListener;
  switch(token) {
  case Onreadystatechange:
    newListener = Window::retrieveActive(exec)->getJSEventListener(value, true);
    if (newListener != onReadyStateChangeListener) {
      if (onReadyStateChangeListener) onReadyStateChangeListener->deref();
      onReadyStateChangeListener = newListener;
      if (onReadyStateChangeListener) onReadyStateChangeListener->ref();
    }
    break;
  case Onload:
    newListener = Window::retrieveActive(exec)->getJSEventListener(value, true);
    if (newListener != onLoadListener) {
      if (onLoadListener) onLoadListener->deref();
      onLoadListener = newListener;
      if (onLoadListener) onLoadListener->ref();
    }
    break;
  default:
    kdWarning() << "XMLHttpRequest::putValue unhandled token " << token << endl;
  }
}

XMLHttpRequest::XMLHttpRequest(ExecState *exec, const DOM::Document &d)
  : DOMObject(XMLHttpRequestProto::self(exec)),
    qObject(new XMLHttpRequestQObject(this)),
    doc(static_cast<DOM::DocumentImpl*>(d.handle())),
    async(true),
    contentType(TQString::null),
    job(0),
    state(Uninitialized),
    onReadyStateChangeListener(0),
    onLoadListener(0),
    decoder(0),
    createdDocument(false),
    aborted(false)
{
}

XMLHttpRequest::~XMLHttpRequest()
{
  if (onReadyStateChangeListener)
    onReadyStateChangeListener->deref();
  if (onLoadListener)
    onLoadListener->deref();
  delete qObject;
  qObject = 0;
  delete decoder;
  decoder = 0;
}

void XMLHttpRequest::changeState(XMLHttpRequestState newState)
{
  if (state != newState) {
    state = newState;

    ref();

    if (onReadyStateChangeListener != 0 && doc->view() && doc->view()->part()) {
      DOM::Event ev = doc->view()->part()->document().createEvent("HTMLEvents");
      ev.initEvent("readystatechange", true, true);
      onReadyStateChangeListener->handleEvent(ev);
    }

    if (state == Completed && onLoadListener != 0 && doc->view() && doc->view()->part()) {
      DOM::Event ev = doc->view()->part()->document().createEvent("HTMLEvents");
      ev.initEvent("load", true, true);
      onLoadListener->handleEvent(ev);
    }

    deref();
  }
}

bool XMLHttpRequest::urlMatchesDocumentDomain(const KURL& _url) const
{
  // No need to do work if _url is not valid...
  if (!_url.isValid())
    return false;

  KURL documentURL(doc->URL());

  // a local file can load anything
  if (documentURL.protocol().lower() == "file") {
    return true;
  }

  // but a remote document can only load from the same port on the server
  if (documentURL.protocol().lower() == _url.protocol().lower() &&
      documentURL.host().lower() == _url.host().lower() &&
      documentURL.port() == _url.port()) {
    return true;
  }

  return false;
}

void XMLHttpRequest::open(const TQString& _method, const KURL& _url, bool _async)
{
  abort();
  aborted = false;

  // clear stuff from possible previous load
  requestHeaders.clear();
  responseHeaders = TQString();
  response = TQString();
  createdDocument = false;
  responseXML = DOM::Document();

  changeState(Uninitialized);

  if (aborted) {
    return;
  }

  if (!urlMatchesDocumentDomain(_url)) {
    return;
  }


  method = _method.lower();
  url = _url;
  async = _async;

  changeState(Loading);
}

void XMLHttpRequest::send(const TQString& _body)
{
  aborted = false;

  const TQString protocol = url.protocol().lower();
  // Abandon the request when the protocol is other than "http",
  // instead of blindly doing a KIO::get on other protocols like file:/.
  if (!protocol.startsWith("http") && !protocol.startsWith("webdav"))
  {
    abort();
    return;
  }

  if (method == "post") {

    // FIXME: determine post encoding correctly by looking in headers
    // for charset.
    TQByteArray buf;
    TQCString str = _body.utf8();
    buf.duplicate(str.data(), str.size() - 1);

    job = KIO::http_post( url, buf, false );
    if(contentType.isNull())
      job->addMetaData( "content-type", "Content-type: text/plain" );
    else
      job->addMetaData( "content-type", contentType );
  }
  else {
    job = KIO::get( url, false, false );
  }

  if (!requestHeaders.isEmpty()) {
    TQString rh;
    TQMap<TQString, TQString>::ConstIterator begin = requestHeaders.begin();
    TQMap<TQString, TQString>::ConstIterator end = requestHeaders.end();
    for (TQMap<TQString, TQString>::ConstIterator i = begin; i != end; ++i) {
      TQString key = i.key();
      TQString value = i.data();
      if (key == "accept") {
        // The HTTP KIO slave supports an override this way
        job->addMetaData("accept", value);
      } else {
        if (i != begin)
          rh += "\r\n";
        rh += key + ": " + value;
      }
    }

    job->addMetaData("customHTTPHeader", rh);
  }

  job->addMetaData("PropagateHttpHeader", "true");

  // Set the default referrer if one is not already supplied
  // through setRequestHeader. NOTE: the user can still disable
  // this feature at the protocol level (kio_http).
  // ### does find() ever succeed? the headers are stored in lower case!
  if (requestHeaders.tqfind("Referer") == requestHeaders.end()) {
    KURL documentURL(doc->URL());
    documentURL.setPass(TQString::null);
    documentURL.setUser(TQString::null);
    job->addMetaData("referrer", documentURL.url());
    // kdDebug() << "Adding referrer: " << documentURL << endl;
  }

  if (!async) {
    TQByteArray data;
    KURL finalURL;
    TQString headers;

#ifdef APPLE_CHANGES
    data = KWQServeSynchronousRequest(khtml::Cache::loader(), doc->docLoader(), job, finalURL, headers);
#else
    TQMap<TQString, TQString> metaData;
    if ( NetAccess::synchronousRun( job, 0, &data, &finalURL, &metaData ) ) {
      headers = metaData[ "HTTP-Headers" ];
    }
#endif
    job = 0;
    processSyncLoadResults(data, finalURL, headers);
    return;
  }

  qObject->connect( job, TQT_SIGNAL( result( KIO::Job* ) ),
		    TQT_SLOT( slotFinished( KIO::Job* ) ) );
#ifdef APPLE_CHANGES
  qObject->connect( job, TQT_SIGNAL( data( KIO::Job*, const char*, int ) ),
		    TQT_SLOT( slotData( KIO::Job*, const char*, int ) ) );
#else
  qObject->connect( job, TQT_SIGNAL( data( KIO::Job*, const TQByteArray& ) ),
		    TQT_SLOT( slotData( KIO::Job*, const TQByteArray& ) ) );
#endif
  qObject->connect( job, TQT_SIGNAL(redirection(KIO::Job*, const KURL& ) ),
		    TQT_SLOT( slotRedirection(KIO::Job*, const KURL&) ) );

#ifdef APPLE_CHANGES
  KWQServeRequest(khtml::Cache::loader(), doc->docLoader(), job);
#else
  KIO::Scheduler::scheduleJob( job );
#endif
}

void XMLHttpRequest::abort()
{
  if (job) {
    job->kill();
    job = 0;
  }
  delete decoder;
  decoder = 0;
  aborted = true;
}

void XMLHttpRequest::overrideMIMEType(const TQString& override)
{
    m_mimeTypeOverride = override;
}

void XMLHttpRequest::setRequestHeader(const TQString& _name, const TQString &value)
{
  TQString name = _name.lower().stripWhiteSpace();

  // Content-type needs to be set seperately from the other headers
  if(name == "content-type") {
    contentType = "Content-type: " + value;
    return;
  }

  // Sanitize the referrer header to protect against spoofing...
  if(name == "referer") {
    KURL referrerURL(value);
    if (urlMatchesDocumentDomain(referrerURL))
      requestHeaders[name] = referrerURL.url();
    return;
  }

  // Sanitize the request headers below and handle them as if they are
  // calls to open. Otherwise, we will end up ignoring them all together!
  // TODO: Do something about "put" which kio_http sort of supports and
  // the webDAV headers such as PROPFIND etc...
  if (name == "get"  || name == "post") {
    KURL reqURL (doc->URL(), value.stripWhiteSpace());
    open(name, reqURL, async);
    return;
  }

  // Reject all banned headers. See BANNED_HTTP_HEADERS above.
  // kdDebug() << "Banned HTTP Headers: " << BANNED_HTTP_HEADERS << endl;
  TQStringList bannedHeaders = TQStringList::split(',',
                                  TQString::tqfromLatin1(BANNED_HTTP_HEADERS));

  if (bannedHeaders.contains(name))
    return;   // Denied

  requestHeaders[name] = value.stripWhiteSpace();
}

Value XMLHttpRequest::getAllResponseHeaders() const
{
  if (responseHeaders.isEmpty()) {
    return Undefined();
  }

  int endOfLine = responseHeaders.tqfind("\n");

  if (endOfLine == -1) {
    return Undefined();
  }

  return String(responseHeaders.mid(endOfLine + 1) + "\n");
}

Value XMLHttpRequest::getResponseHeader(const TQString& name) const
{
  if (responseHeaders.isEmpty()) {
    return Undefined();
  }

  TQRegExp headerLinePattern(name + ":", false);

  int matchLength;
  int headerLinePos = headerLinePattern.search(responseHeaders, 0);
  matchLength = headerLinePattern.matchedLength();
  while (headerLinePos != -1) {
    if (headerLinePos == 0 || responseHeaders[headerLinePos-1] == '\n') {
      break;
    }

    headerLinePos = headerLinePattern.search(responseHeaders, headerLinePos + 1);
    matchLength = headerLinePattern.matchedLength();
  }


  if (headerLinePos == -1) {
    return Undefined();
  }

  int endOfLine = responseHeaders.tqfind("\n", headerLinePos + matchLength);

  return String(responseHeaders.mid(headerLinePos + matchLength, endOfLine - (headerLinePos + matchLength)).stripWhiteSpace());
}

static Value httpStatus(const TQString& response, bool textStatus = false)
{
  if (response.isEmpty()) {
    return Undefined();
  }

  int endOfLine = response.tqfind("\n");
  TQString firstLine = (endOfLine == -1) ? response : response.left(endOfLine);
  int codeStart = firstLine.tqfind(" ");
  int codeEnd = firstLine.tqfind(" ", codeStart + 1);

  if (codeStart == -1 || codeEnd == -1) {
    return Undefined();
  }

  if (textStatus) {
    TQString statusText = firstLine.mid(codeEnd + 1, endOfLine - (codeEnd + 1)).stripWhiteSpace();
    return String(statusText);
  }

  TQString number = firstLine.mid(codeStart + 1, codeEnd - (codeStart + 1));

  bool ok = false;
  int code = number.toInt(&ok);
  if (!ok) {
    return Undefined();
  }

  return Number(code);
}

Value XMLHttpRequest::getStatus() const
{
  return httpStatus(responseHeaders);
}

Value XMLHttpRequest::getStatusText() const
{
  return httpStatus(responseHeaders, true);
}

void XMLHttpRequest::processSyncLoadResults(const TQByteArray &data, const KURL &finalURL, const TQString &headers)
{
  if (!urlMatchesDocumentDomain(finalURL)) {
    abort();
    return;
  }

  responseHeaders = headers;
  changeState(Loaded);
  if (aborted) {
    return;
  }

#ifdef APPLE_CHANGES
  const char *bytes = (const char *)data.data();
  int len = (int)data.size();

  slotData(0, bytes, len);
#else
  slotData(0, data);
#endif

  if (aborted) {
    return;
  }

  slotFinished(0);
}

void XMLHttpRequest::slotFinished(KIO::Job *)
{
  if (decoder) {
    response += decoder->flush();
  }

  // make sure to forget about the job before emitting completed,
  // since changeState triggers JS code, which might e.g. call abort.
  job = 0;
  changeState(Completed);

  delete decoder;
  decoder = 0;
}

void XMLHttpRequest::slotRedirection(KIO::Job*, const KURL& url)
{
  if (!urlMatchesDocumentDomain(url)) {
    abort();
  }
}

#ifdef APPLE_CHANGES
void XMLHttpRequest::slotData( KIO::Job*, const char *data, int len )
#else
void XMLHttpRequest::slotData(KIO::Job*, const TQByteArray &_data)
#endif
{
  if (state < Loaded ) {
    responseHeaders = job->queryMetaData("HTTP-Headers");

    // NOTE: Replace a 304 response with a 200! Both IE and Mozilla do this.
    // Problem first reported through bug# 110272.
    int codeStart = responseHeaders.tqfind("304");
    if ( codeStart != -1) {
      int codeEnd = responseHeaders.tqfind("\n", codeStart+3);
      if (codeEnd != -1)
        responseHeaders.replace(codeStart, (codeEnd-codeStart), "200 OK");
    }

    changeState(Loaded);
  }

#ifndef APPLE_CHANGES
  const char *data = (const char *)_data.data();
  int len = (int)_data.size();
#endif

  if ( decoder == NULL ) {
    int pos = responseHeaders.tqfind("content-type:", 0, false);

    if ( pos > -1 ) {
      pos += 13;
      int index = responseHeaders.tqfind('\n', pos);
      TQString type = responseHeaders.mid(pos, (index-pos));
      index = type.find (';');
      if (index > -1)
        encoding = type.mid( index+1 ).remove(TQRegExp("charset[ ]*=[ ]*", false)).stripWhiteSpace();
    }

    decoder = new Decoder;
    if (!encoding.isNull())
      decoder->setEncoding(encoding.latin1(), Decoder::EncodingFromHTTPHeader);
    else {
      // Per section 2 of W3C working draft spec, fall back to "UTF-8".
      decoder->setEncoding("UTF-8", Decoder::DefaultEncoding);
    }
  }
  if (len == 0)
    return;

  if (len == -1)
    len = strlen(data);

  TQString decoded = decoder->decode(data, len);

  response += decoded;

  if (!aborted) {
    changeState(Interactive);
  }
}

Value XMLHttpRequestProtoFunc::tryCall(ExecState *exec, Object &thisObj, const List &args)
{
  if (!thisObj.inherits(&XMLHttpRequest::info)) {
    Object err = Error::create(exec,TypeError);
    exec->setException(err);
    return err;
  }

  XMLHttpRequest *request = static_cast<XMLHttpRequest *>(thisObj.imp());
  switch (id) {
  case XMLHttpRequest::Abort:
    request->abort();
    return Undefined();
  case XMLHttpRequest::GetAllResponseHeaders:
    if (args.size() != 0) {
    return Undefined();
    }

    return request->getAllResponseHeaders();
  case XMLHttpRequest::GetResponseHeader:
    if (args.size() != 1) {
    return Undefined();
    }

    return request->getResponseHeader(args[0].toString(exec).qstring());
  case XMLHttpRequest::Open:
    {
      if (args.size() < 2 || args.size() > 5) {
        return Undefined();
      }

      TQString method = args[0].toString(exec).qstring();
      KHTMLPart *part = ::tqqt_cast<KHTMLPart *>(Window::retrieveActive(exec)->part());
      if (!part)
        return Undefined();
      KURL url = KURL(part->document().completeURL(args[1].toString(exec).qstring()).string());

      bool async = true;
      if (args.size() >= 3) {
	async = args[2].toBoolean(exec);
      }

      if (args.size() >= 4) {
	url.setUser(args[3].toString(exec).qstring());
      }

      if (args.size() >= 5) {
	url.setPass(args[4].toString(exec).qstring());
      }

      request->open(method, url, async);

      return Undefined();
    }
  case XMLHttpRequest::Send:
    {
      if (args.size() > 1) {
        return Undefined();
      }

      if (request->state != Loading) {
	return Undefined();
      }

      TQString body;
      if (args.size() >= 1) {
        Object obj = Object::dynamicCast(args[0]);
        if (obj.isValid() && obj.inherits(&DOMDocument::info)) {
          DOM::Node docNode = static_cast<KJS::DOMDocument *>(obj.imp())->toNode();
          DOM::DocumentImpl *doc = static_cast<DOM::DocumentImpl *>(docNode.handle());

          try {
            body = doc->toString().string();
            // FIXME: also need to set content type, including encoding!

          } catch(DOM::DOMException& e) {
            Object err = Error::create(exec, GeneralError, "Exception serializing document");
            exec->setException(err);
          }
        } else {
          body = args[0].toString(exec).qstring();
        }
      }

      request->send(body);

      return Undefined();
    }
  case XMLHttpRequest::SetRequestHeader:
    if (args.size() != 2) {
      return Undefined();
    }

    request->setRequestHeader(args[0].toString(exec).qstring(), args[1].toString(exec).qstring());

    return Undefined();

  case XMLHttpRequest::OverrideMIMEType:
    if (args.size() < 1) {
       Object err = Error::create(exec, SyntaxError, "Not enough arguments");
       exec->setException(err);
       return err;
    }

    request->overrideMIMEType(args[0].toString(exec).qstring());
    return Undefined();
  }

  return Undefined();
}

} // end namespace


#include "xmlhttprequest.moc"