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 "third_party/blink/renderer/bindings/core/v8/v8_xml_http_request.h"
32 
33 #include "third_party/blink/renderer/bindings/core/v8/v8_array_buffer.h"
34 #include "third_party/blink/renderer/bindings/core/v8/v8_array_buffer_view.h"
35 #include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_core.h"
36 #include "third_party/blink/renderer/bindings/core/v8/v8_blob.h"
37 #include "third_party/blink/renderer/bindings/core/v8/v8_document.h"
38 #include "third_party/blink/renderer/bindings/core/v8/v8_form_data.h"
39 #include "third_party/blink/renderer/bindings/core/v8/v8_html_document.h"
40 #include "third_party/blink/renderer/core/dom/document.h"
41 #include "third_party/blink/renderer/core/probe/core_probes.h"
42 #include "third_party/blink/renderer/core/workers/worker_global_scope.h"
43 #include "third_party/blink/renderer/core/xmlhttprequest/xml_http_request.h"
44 #include "third_party/blink/renderer/platform/bindings/exception_state.h"
45 #include "v8/include/v8.h"
46 
47 namespace blink {
48 
ResponseTextAttributeGetterCustom(const v8::FunctionCallbackInfo<v8::Value> & info)49 void V8XMLHttpRequest::ResponseTextAttributeGetterCustom(
50     const v8::FunctionCallbackInfo<v8::Value>& info) {
51   XMLHttpRequest* xml_http_request = V8XMLHttpRequest::ToImpl(info.Holder());
52   ExceptionState exception_state(info.GetIsolate(),
53                                  ExceptionState::kGetterContext,
54                                  "XMLHttpRequest", "responseText");
55   v8::Local<v8::String> text = xml_http_request->responseText(exception_state);
56   if (text.IsEmpty()) {
57     V8SetReturnValueString(info, g_empty_string, info.GetIsolate());
58     return;
59   }
60   V8SetReturnValue(info, text);
61 }
62 
ResponseAttributeGetterCustom(const v8::FunctionCallbackInfo<v8::Value> & info)63 void V8XMLHttpRequest::ResponseAttributeGetterCustom(
64     const v8::FunctionCallbackInfo<v8::Value>& info) {
65   XMLHttpRequest* xml_http_request = V8XMLHttpRequest::ToImpl(info.Holder());
66   ExceptionState exception_state(info.GetIsolate(),
67                                  ExceptionState::kGetterContext,
68                                  "XMLHttpRequest", "response");
69 
70   switch (xml_http_request->GetResponseTypeCode()) {
71     case XMLHttpRequest::kResponseTypeDefault:
72     case XMLHttpRequest::kResponseTypeText:
73       ResponseTextAttributeGetterCustom(info);
74       return;
75 
76     case XMLHttpRequest::kResponseTypeJSON: {
77       v8::Isolate* isolate = info.GetIsolate();
78 
79       v8::Local<v8::String> json_source =
80           xml_http_request->ResponseJSONSource();
81       if (json_source.IsEmpty()) {
82         V8SetReturnValueNull(info);
83         return;
84       }
85 
86       // Catch syntax error. Swallows an exception (when thrown) as the
87       // spec says. https://xhr.spec.whatwg.org/#response-body
88       v8::Local<v8::Value> json =
89           FromJSONString(isolate, isolate->GetCurrentContext(),
90                          ToCoreString(json_source), exception_state);
91       if (exception_state.HadException()) {
92         exception_state.ClearException();
93         V8SetReturnValueNull(info);
94       } else {
95         V8SetReturnValue(info, json);
96       }
97       return;
98     }
99 
100     case XMLHttpRequest::kResponseTypeDocument: {
101       Document* document = xml_http_request->responseXML(exception_state);
102       V8SetReturnValueFast(info, document, xml_http_request);
103       return;
104     }
105 
106     case XMLHttpRequest::kResponseTypeBlob: {
107       Blob* blob = xml_http_request->ResponseBlob();
108       V8SetReturnValueFast(info, blob, xml_http_request);
109       return;
110     }
111 
112     case XMLHttpRequest::kResponseTypeArrayBuffer: {
113       DOMArrayBuffer* array_buffer = xml_http_request->ResponseArrayBuffer();
114       V8SetReturnValueFast(info, array_buffer, xml_http_request);
115       return;
116     }
117   }
118 }
119 
120 }  // namespace blink
121