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      1 /*
      2  * Copyright (C) 2008, 2009, 2010 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "V8XMLHttpRequest.h"
     33 
     34 #include "ArrayBuffer.h"
     35 #include "Frame.h"
     36 #include "InspectorInstrumentation.h"
     37 #include "V8ArrayBuffer.h"
     38 #include "V8Binding.h"
     39 #include "V8Blob.h"
     40 #include "V8DOMFormData.h"
     41 #include "V8Document.h"
     42 #include "V8HTMLDocument.h"
     43 #include "V8Proxy.h"
     44 #include "V8Utilities.h"
     45 #include "WorkerContext.h"
     46 #include "WorkerContextExecutionProxy.h"
     47 #include "XMLHttpRequest.h"
     48 
     49 namespace WebCore {
     50 
     51 v8::Handle<v8::Value> V8XMLHttpRequest::responseTextAccessorGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
     52 {
     53     INC_STATS("DOM.XMLHttpRequest.responsetext._get");
     54     XMLHttpRequest* xmlHttpRequest = V8XMLHttpRequest::toNative(info.Holder());
     55     ExceptionCode ec = 0;
     56     const String& text = xmlHttpRequest->responseText(ec);
     57     if (ec)
     58         return throwError(ec);
     59     return v8String(text);
     60 }
     61 
     62 v8::Handle<v8::Value> V8XMLHttpRequest::responseAccessorGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
     63 {
     64     INC_STATS("DOM.XMLHttpRequest.response._get");
     65     XMLHttpRequest* xmlHttpRequest = V8XMLHttpRequest::toNative(info.Holder());
     66 
     67     switch (xmlHttpRequest->responseTypeCode()) {
     68     case XMLHttpRequest::ResponseTypeDefault:
     69     case XMLHttpRequest::ResponseTypeText:
     70         return responseTextAccessorGetter(name, info);
     71 
     72     case XMLHttpRequest::ResponseTypeDocument:
     73         {
     74             ExceptionCode ec = 0;
     75             Document* document = xmlHttpRequest->responseXML(ec);
     76             if (ec) {
     77                 V8Proxy::setDOMException(ec);
     78                 return v8::Undefined();
     79             }
     80             return toV8(document);
     81         }
     82 
     83     case XMLHttpRequest::ResponseTypeBlob:
     84 #if ENABLE(XHR_RESPONSE_BLOB)
     85         {
     86             ExceptionCode ec = 0;
     87             Blob* blob = xmlHttpRequest->responseBlob(ec);
     88             if (ec) {
     89                 V8Proxy::setDOMException(ec);
     90                 return v8::Undefined();
     91             }
     92             return toV8(blob);
     93         }
     94 #else
     95         return v8::Undefined();
     96 #endif
     97 
     98 #if ENABLE(WEBGL) || ENABLE(BLOB)
     99     case XMLHttpRequest::ResponseTypeArrayBuffer:
    100         {
    101             ExceptionCode ec = 0;
    102             ArrayBuffer* arrayBuffer = xmlHttpRequest->responseArrayBuffer(ec);
    103             if (ec) {
    104                 V8Proxy::setDOMException(ec);
    105                 return v8::Undefined();
    106             }
    107             return toV8(arrayBuffer);
    108         }
    109 #endif
    110     }
    111 
    112     return v8::Undefined();
    113 }
    114 
    115 v8::Handle<v8::Value> V8XMLHttpRequest::openCallback(const v8::Arguments& args)
    116 {
    117     INC_STATS("DOM.XMLHttpRequest.open()");
    118     // Four cases:
    119     // open(method, url)
    120     // open(method, url, async)
    121     // open(method, url, async, user)
    122     // open(method, url, async, user, passwd)
    123 
    124     if (args.Length() < 2)
    125         return throwError("Not enough arguments", V8Proxy::SyntaxError);
    126 
    127     XMLHttpRequest* xmlHttpRequest = V8XMLHttpRequest::toNative(args.Holder());
    128 
    129     String method = toWebCoreString(args[0]);
    130     String urlstring = toWebCoreString(args[1]);
    131     ScriptExecutionContext* context = getScriptExecutionContext();
    132     if (!context)
    133         return v8::Undefined();
    134 
    135     KURL url = context->completeURL(urlstring);
    136 
    137     ExceptionCode ec = 0;
    138 
    139     if (args.Length() >= 3) {
    140         bool async = args[2]->BooleanValue();
    141 
    142         if (args.Length() >= 4 && !args[3]->IsUndefined()) {
    143             String user = toWebCoreStringWithNullCheck(args[3]);
    144 
    145             if (args.Length() >= 5 && !args[4]->IsUndefined()) {
    146                 String passwd = toWebCoreStringWithNullCheck(args[4]);
    147                 xmlHttpRequest->open(method, url, async, user, passwd, ec);
    148             } else
    149                 xmlHttpRequest->open(method, url, async, user, ec);
    150         } else
    151             xmlHttpRequest->open(method, url, async, ec);
    152     } else
    153         xmlHttpRequest->open(method, url, ec);
    154 
    155     if (ec)
    156         return throwError(ec);
    157 
    158     return v8::Undefined();
    159 }
    160 
    161 static bool isDocumentType(v8::Handle<v8::Value> value)
    162 {
    163     // FIXME: add other document types.
    164     return V8Document::HasInstance(value) || V8HTMLDocument::HasInstance(value);
    165 }
    166 
    167 v8::Handle<v8::Value> V8XMLHttpRequest::sendCallback(const v8::Arguments& args)
    168 {
    169     INC_STATS("DOM.XMLHttpRequest.send()");
    170     XMLHttpRequest* xmlHttpRequest = V8XMLHttpRequest::toNative(args.Holder());
    171 
    172     InspectorInstrumentation::willSendXMLHttpRequest(xmlHttpRequest->scriptExecutionContext(), xmlHttpRequest->url());
    173 
    174     ExceptionCode ec = 0;
    175     if (args.Length() < 1)
    176         xmlHttpRequest->send(ec);
    177     else {
    178         v8::Handle<v8::Value> arg = args[0];
    179         if (isUndefinedOrNull(arg))
    180             xmlHttpRequest->send(ec);
    181         else if (isDocumentType(arg)) {
    182             v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(arg);
    183             Document* document = V8Document::toNative(object);
    184             ASSERT(document);
    185             xmlHttpRequest->send(document, ec);
    186         } else if (V8Blob::HasInstance(arg)) {
    187             v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(arg);
    188             Blob* blob = V8Blob::toNative(object);
    189             ASSERT(blob);
    190             xmlHttpRequest->send(blob, ec);
    191         } else if (V8DOMFormData::HasInstance(arg)) {
    192             v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(arg);
    193             DOMFormData* domFormData = V8DOMFormData::toNative(object);
    194             ASSERT(domFormData);
    195             xmlHttpRequest->send(domFormData, ec);
    196 #if ENABLE(WEBGL) || ENABLE(BLOB)
    197         } else if (V8ArrayBuffer::HasInstance(arg)) {
    198             v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(arg);
    199             ArrayBuffer* arrayBuffer = V8ArrayBuffer::toNative(object);
    200             ASSERT(arrayBuffer);
    201             xmlHttpRequest->send(arrayBuffer, ec);
    202 #endif
    203         } else
    204             xmlHttpRequest->send(toWebCoreStringWithNullCheck(arg), ec);
    205     }
    206 
    207     if (ec)
    208         return throwError(ec);
    209 
    210     return v8::Undefined();
    211 }
    212 
    213 } // namespace WebCore
    214