1 /*
2 * Copyright (C) 2007-2011 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 "bindings/core/v8/V8InjectedScriptHost.h"
33
34 #include "bindings/core/v8/V8EventTarget.h"
35 #include "bindings/core/v8/V8HTMLAllCollection.h"
36 #include "bindings/core/v8/V8HTMLCollection.h"
37 #include "bindings/core/v8/V8Node.h"
38 #include "bindings/core/v8/V8NodeList.h"
39 #include "bindings/core/v8/V8Storage.h"
40 #include "bindings/modules/v8/V8Database.h"
41 #include "bindings/v8/BindingSecurity.h"
42 #include "bindings/v8/ExceptionState.h"
43 #include "bindings/v8/ScriptDebugServer.h"
44 #include "bindings/v8/ScriptValue.h"
45 #include "bindings/v8/V8AbstractEventListener.h"
46 #include "bindings/v8/V8Binding.h"
47 #include "bindings/v8/V8ScriptRunner.h"
48 #include "bindings/v8/custom/V8Float32ArrayCustom.h"
49 #include "bindings/v8/custom/V8Float64ArrayCustom.h"
50 #include "bindings/v8/custom/V8Int16ArrayCustom.h"
51 #include "bindings/v8/custom/V8Int32ArrayCustom.h"
52 #include "bindings/v8/custom/V8Int8ArrayCustom.h"
53 #include "bindings/v8/custom/V8Uint16ArrayCustom.h"
54 #include "bindings/v8/custom/V8Uint32ArrayCustom.h"
55 #include "bindings/v8/custom/V8Uint8ArrayCustom.h"
56 #include "bindings/v8/custom/V8Uint8ClampedArrayCustom.h"
57 #include "core/events/EventTarget.h"
58 #include "core/frame/LocalDOMWindow.h"
59 #include "core/inspector/InjectedScript.h"
60 #include "core/inspector/InjectedScriptHost.h"
61 #include "core/inspector/InspectorDOMAgent.h"
62 #include "modules/webdatabase/Database.h"
63 #include "platform/JSONValues.h"
64
65 namespace WebCore {
66
scriptValueAsNode(ScriptState * scriptState,ScriptValue value)67 Node* InjectedScriptHost::scriptValueAsNode(ScriptState* scriptState, ScriptValue value)
68 {
69 ScriptState::Scope scope(scriptState);
70 if (!value.isObject() || value.isNull())
71 return 0;
72 return V8Node::toNative(v8::Handle<v8::Object>::Cast(value.v8Value()));
73 }
74
nodeAsScriptValue(ScriptState * scriptState,Node * node)75 ScriptValue InjectedScriptHost::nodeAsScriptValue(ScriptState* scriptState, Node* node)
76 {
77 ScriptState::Scope scope(scriptState);
78 v8::Isolate* isolate = scriptState->isolate();
79 ExceptionState exceptionState(ExceptionState::ExecutionContext, "nodeAsScriptValue", "InjectedScriptHost", scriptState->context()->Global(), isolate);
80 if (!BindingSecurity::shouldAllowAccessToNode(isolate, node, exceptionState))
81 return ScriptValue(scriptState, v8::Null(isolate));
82 return ScriptValue(scriptState, toV8(node, scriptState->context()->Global(), isolate));
83 }
84
inspectedObjectMethodCustom(const v8::FunctionCallbackInfo<v8::Value> & info)85 void V8InjectedScriptHost::inspectedObjectMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
86 {
87 if (info.Length() < 1)
88 return;
89
90 if (!info[0]->IsInt32()) {
91 throwTypeError("argument has to be an integer", info.GetIsolate());
92 return;
93 }
94
95 InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
96 InjectedScriptHost::InspectableObject* object = host->inspectedObject(info[0]->ToInt32()->Value());
97 v8SetReturnValue(info, object->get(ScriptState::current(info.GetIsolate())).v8Value());
98 }
99
internalConstructorNameMethodCustom(const v8::FunctionCallbackInfo<v8::Value> & info)100 void V8InjectedScriptHost::internalConstructorNameMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
101 {
102 if (info.Length() < 1)
103 return;
104
105 if (!info[0]->IsObject())
106 return;
107
108 v8SetReturnValue(info, info[0]->ToObject()->GetConstructorName());
109 }
110
isHTMLAllCollectionMethodCustom(const v8::FunctionCallbackInfo<v8::Value> & info)111 void V8InjectedScriptHost::isHTMLAllCollectionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
112 {
113 if (info.Length() < 1)
114 return;
115
116 if (!info[0]->IsObject()) {
117 v8SetReturnValue(info, false);
118 return;
119 }
120
121 v8SetReturnValue(info, V8HTMLAllCollection::hasInstance(info[0], info.GetIsolate()));
122 }
123
typeMethodCustom(const v8::FunctionCallbackInfo<v8::Value> & info)124 void V8InjectedScriptHost::typeMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
125 {
126 if (info.Length() < 1)
127 return;
128 v8::Isolate* isolate = info.GetIsolate();
129
130 v8::Handle<v8::Value> value = info[0];
131 if (value->IsString()) {
132 v8SetReturnValue(info, v8AtomicString(isolate, "string"));
133 return;
134 }
135 if (value->IsArray()) {
136 v8SetReturnValue(info, v8AtomicString(isolate, "array"));
137 return;
138 }
139 if (value->IsBoolean()) {
140 v8SetReturnValue(info, v8AtomicString(isolate, "boolean"));
141 return;
142 }
143 if (value->IsNumber()) {
144 v8SetReturnValue(info, v8AtomicString(isolate, "number"));
145 return;
146 }
147 if (value->IsDate()) {
148 v8SetReturnValue(info, v8AtomicString(isolate, "date"));
149 return;
150 }
151 if (value->IsRegExp()) {
152 v8SetReturnValue(info, v8AtomicString(isolate, "regexp"));
153 return;
154 }
155 if (V8Node::hasInstance(value, isolate)) {
156 v8SetReturnValue(info, v8AtomicString(isolate, "node"));
157 return;
158 }
159 if (V8NodeList::hasInstance(value, isolate)) {
160 v8SetReturnValue(info, v8AtomicString(isolate, "array"));
161 return;
162 }
163 if (V8HTMLCollection::hasInstance(value, isolate)) {
164 v8SetReturnValue(info, v8AtomicString(isolate, "array"));
165 return;
166 }
167 if (V8Int8Array::hasInstance(value, isolate) || V8Int16Array::hasInstance(value, isolate) || V8Int32Array::hasInstance(value, isolate)) {
168 v8SetReturnValue(info, v8AtomicString(isolate, "array"));
169 return;
170 }
171 if (V8Uint8Array::hasInstance(value, isolate) || V8Uint16Array::hasInstance(value, isolate) || V8Uint32Array::hasInstance(value, isolate)) {
172 v8SetReturnValue(info, v8AtomicString(isolate, "array"));
173 return;
174 }
175 if (V8Float32Array::hasInstance(value, isolate) || V8Float64Array::hasInstance(value, isolate)) {
176 v8SetReturnValue(info, v8AtomicString(isolate, "array"));
177 return;
178 }
179 if (V8Uint8ClampedArray::hasInstance(value, isolate)) {
180 v8SetReturnValue(info, v8AtomicString(isolate, "array"));
181 return;
182 }
183 }
184
setFunctionName(v8::Handle<v8::Object> & result,const v8::Handle<v8::Value> & value,v8::Isolate * isolate)185 static bool setFunctionName(v8::Handle<v8::Object>& result, const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
186 {
187 if (value->IsString() && v8::Handle<v8::String>::Cast(value)->Length()) {
188 result->Set(v8AtomicString(isolate, "functionName"), value);
189 return true;
190 }
191 return false;
192 }
193
functionDetailsMethodCustom(const v8::FunctionCallbackInfo<v8::Value> & info)194 void V8InjectedScriptHost::functionDetailsMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
195 {
196 if (info.Length() < 1)
197 return;
198
199 v8::Isolate* isolate = info.GetIsolate();
200
201 v8::Handle<v8::Value> value = info[0];
202 if (!value->IsFunction())
203 return;
204 v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(value);
205 int lineNumber = function->GetScriptLineNumber();
206 int columnNumber = function->GetScriptColumnNumber();
207
208 v8::Local<v8::Object> location = v8::Object::New(isolate);
209 location->Set(v8AtomicString(isolate, "lineNumber"), v8::Integer::New(isolate, lineNumber));
210 location->Set(v8AtomicString(isolate, "columnNumber"), v8::Integer::New(isolate, columnNumber));
211 location->Set(v8AtomicString(isolate, "scriptId"), v8::Integer::New(isolate, function->ScriptId())->ToString());
212
213 v8::Local<v8::Object> result = v8::Object::New(isolate);
214 result->Set(v8AtomicString(isolate, "location"), location);
215
216 if (!setFunctionName(result, function->GetDisplayName(), isolate)
217 && !setFunctionName(result, function->GetName(), isolate)
218 && !setFunctionName(result, function->GetInferredName(), isolate))
219 result->Set(v8AtomicString(isolate, "functionName"), v8AtomicString(isolate, ""));
220
221 InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
222 ScriptDebugServer& debugServer = host->scriptDebugServer();
223 v8::Handle<v8::Value> scopes = debugServer.functionScopes(function);
224 if (!scopes.IsEmpty() && scopes->IsArray())
225 result->Set(v8AtomicString(isolate, "rawScopes"), scopes);
226
227 v8SetReturnValue(info, result);
228 }
229
getInternalPropertiesMethodCustom(const v8::FunctionCallbackInfo<v8::Value> & info)230 void V8InjectedScriptHost::getInternalPropertiesMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
231 {
232 if (info.Length() < 1)
233 return;
234
235 v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(info[0]);
236
237 InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
238 ScriptDebugServer& debugServer = host->scriptDebugServer();
239 v8SetReturnValue(info, debugServer.getInternalProperties(object));
240 }
241
getJSListenerFunctions(ExecutionContext * executionContext,const EventListenerInfo & listenerInfo,v8::Isolate * isolate)242 static v8::Handle<v8::Array> getJSListenerFunctions(ExecutionContext* executionContext, const EventListenerInfo& listenerInfo, v8::Isolate* isolate)
243 {
244 v8::Local<v8::Array> result = v8::Array::New(isolate);
245 size_t handlersCount = listenerInfo.eventListenerVector.size();
246 for (size_t i = 0, outputIndex = 0; i < handlersCount; ++i) {
247 RefPtr<EventListener> listener = listenerInfo.eventListenerVector[i].listener;
248 if (listener->type() != EventListener::JSEventListenerType) {
249 ASSERT_NOT_REACHED();
250 continue;
251 }
252 V8AbstractEventListener* v8Listener = static_cast<V8AbstractEventListener*>(listener.get());
253 v8::Local<v8::Context> context = toV8Context(executionContext, v8Listener->world());
254 // Hide listeners from other contexts.
255 if (context != isolate->GetCurrentContext())
256 continue;
257 v8::Local<v8::Object> function;
258 {
259 // getListenerObject() may cause JS in the event attribute to get compiled, potentially unsuccessfully.
260 v8::TryCatch block;
261 function = v8Listener->getListenerObject(executionContext);
262 if (block.HasCaught())
263 continue;
264 }
265 ASSERT(!function.IsEmpty());
266 v8::Local<v8::Object> listenerEntry = v8::Object::New(isolate);
267 listenerEntry->Set(v8AtomicString(isolate, "listener"), function);
268 listenerEntry->Set(v8AtomicString(isolate, "useCapture"), v8::Boolean::New(isolate, listenerInfo.eventListenerVector[i].useCapture));
269 result->Set(v8::Number::New(isolate, outputIndex++), listenerEntry);
270 }
271 return result;
272 }
273
getEventListenersMethodCustom(const v8::FunctionCallbackInfo<v8::Value> & info)274 void V8InjectedScriptHost::getEventListenersMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
275 {
276 if (info.Length() < 1)
277 return;
278
279
280 v8::Local<v8::Value> value = info[0];
281 EventTarget* target = V8EventTarget::toNativeWithTypeCheck(info.GetIsolate(), value);
282
283 // We need to handle a LocalDOMWindow specially, because a LocalDOMWindow wrapper exists on a prototype chain.
284 if (!target)
285 target = toDOMWindow(value, info.GetIsolate());
286
287 if (!target || !target->executionContext())
288 return;
289
290 InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
291 Vector<EventListenerInfo> listenersArray;
292 host->getEventListenersImpl(target, listenersArray);
293
294 v8::Local<v8::Object> result = v8::Object::New(info.GetIsolate());
295 for (size_t i = 0; i < listenersArray.size(); ++i) {
296 v8::Handle<v8::Array> listeners = getJSListenerFunctions(target->executionContext(), listenersArray[i], info.GetIsolate());
297 if (!listeners->Length())
298 continue;
299 AtomicString eventType = listenersArray[i].eventType;
300 result->Set(v8String(info.GetIsolate(), eventType), listeners);
301 }
302
303 v8SetReturnValue(info, result);
304 }
305
inspectMethodCustom(const v8::FunctionCallbackInfo<v8::Value> & info)306 void V8InjectedScriptHost::inspectMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
307 {
308 if (info.Length() < 2)
309 return;
310
311 InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
312 ScriptState* scriptState = ScriptState::current(info.GetIsolate());
313 ScriptValue object(scriptState, info[0]);
314 ScriptValue hints(scriptState, info[1]);
315 host->inspectImpl(object.toJSONValue(scriptState), hints.toJSONValue(scriptState));
316 }
317
evaluateMethodCustom(const v8::FunctionCallbackInfo<v8::Value> & info)318 void V8InjectedScriptHost::evaluateMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
319 {
320 v8::Isolate* isolate = info.GetIsolate();
321 if (info.Length() < 1) {
322 isolate->ThrowException(v8::Exception::Error(v8::String::NewFromUtf8(isolate, "One argument expected.")));
323 return;
324 }
325
326 v8::Handle<v8::String> expression = info[0]->ToString();
327 if (expression.IsEmpty()) {
328 isolate->ThrowException(v8::Exception::Error(v8::String::NewFromUtf8(isolate, "The argument must be a string.")));
329 return;
330 }
331
332 ASSERT(isolate->InContext());
333 v8::TryCatch tryCatch;
334 v8::Handle<v8::Value> result = V8ScriptRunner::compileAndRunInternalScript(expression, info.GetIsolate());
335 if (tryCatch.HasCaught()) {
336 v8SetReturnValue(info, tryCatch.ReThrow());
337 return;
338 }
339 v8SetReturnValue(info, result);
340 }
341
setFunctionVariableValueMethodCustom(const v8::FunctionCallbackInfo<v8::Value> & info)342 void V8InjectedScriptHost::setFunctionVariableValueMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
343 {
344 v8::Handle<v8::Value> functionValue = info[0];
345 int scopeIndex = info[1]->Int32Value();
346 String variableName = toCoreStringWithUndefinedOrNullCheck(info[2]);
347 v8::Handle<v8::Value> newValue = info[3];
348
349 InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
350 ScriptDebugServer& debugServer = host->scriptDebugServer();
351 v8SetReturnValue(info, debugServer.setFunctionVariableValue(functionValue, scopeIndex, variableName, newValue));
352 }
353
getFunctionLocation(const v8::FunctionCallbackInfo<v8::Value> & info,String * scriptId,int * lineNumber,int * columnNumber)354 static bool getFunctionLocation(const v8::FunctionCallbackInfo<v8::Value>& info, String* scriptId, int* lineNumber, int* columnNumber)
355 {
356 if (info.Length() < 1)
357 return false;
358 v8::Handle<v8::Value> fn = info[0];
359 if (!fn->IsFunction())
360 return false;
361 v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(fn);
362 *lineNumber = function->GetScriptLineNumber();
363 *columnNumber = function->GetScriptColumnNumber();
364 if (*lineNumber == v8::Function::kLineOffsetNotFound || *columnNumber == v8::Function::kLineOffsetNotFound)
365 return false;
366 *scriptId = String::number(function->ScriptId());
367 return true;
368 }
369
debugFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value> & info)370 void V8InjectedScriptHost::debugFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
371 {
372 String scriptId;
373 int lineNumber;
374 int columnNumber;
375 if (!getFunctionLocation(info, &scriptId, &lineNumber, &columnNumber))
376 return;
377
378 InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
379 host->debugFunction(scriptId, lineNumber, columnNumber);
380 }
381
undebugFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value> & info)382 void V8InjectedScriptHost::undebugFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
383 {
384 String scriptId;
385 int lineNumber;
386 int columnNumber;
387 if (!getFunctionLocation(info, &scriptId, &lineNumber, &columnNumber))
388 return;
389
390 InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
391 host->undebugFunction(scriptId, lineNumber, columnNumber);
392 }
393
monitorFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value> & info)394 void V8InjectedScriptHost::monitorFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
395 {
396 String scriptId;
397 int lineNumber;
398 int columnNumber;
399 if (!getFunctionLocation(info, &scriptId, &lineNumber, &columnNumber))
400 return;
401
402 v8::Handle<v8::Value> name;
403 if (info.Length() > 0 && info[0]->IsFunction()) {
404 v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(info[0]);
405 name = function->GetName();
406 if (!name->IsString() || !v8::Handle<v8::String>::Cast(name)->Length())
407 name = function->GetInferredName();
408 }
409
410 InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
411 host->monitorFunction(scriptId, lineNumber, columnNumber, toCoreStringWithUndefinedOrNullCheck(name));
412 }
413
unmonitorFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value> & info)414 void V8InjectedScriptHost::unmonitorFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
415 {
416 String scriptId;
417 int lineNumber;
418 int columnNumber;
419 if (!getFunctionLocation(info, &scriptId, &lineNumber, &columnNumber))
420 return;
421
422 InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
423 host->unmonitorFunction(scriptId, lineNumber, columnNumber);
424 }
425
suppressWarningsAndCallMethodCustom(const v8::FunctionCallbackInfo<v8::Value> & info)426 void V8InjectedScriptHost::suppressWarningsAndCallMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
427 {
428 if (info.Length() < 2 || !info[0]->IsObject() || !info[1]->IsFunction())
429 return;
430
431 InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
432 ScriptDebugServer& debugServer = host->scriptDebugServer();
433 debugServer.muteWarningsAndDeprecations();
434
435 v8::Handle<v8::Object> receiver = v8::Handle<v8::Object>::Cast(info[0]);
436 v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(info[1]);
437 size_t argc = info.Length() - 2;
438 OwnPtr<v8::Handle<v8::Value>[]> argv = adoptArrayPtr(new v8::Handle<v8::Value>[argc]);
439 for (size_t i = 0; i < argc; ++i)
440 argv[i] = info[i + 2];
441
442 v8::Local<v8::Value> result = function->Call(receiver, argc, argv.get());
443 debugServer.unmuteWarningsAndDeprecations();
444 v8SetReturnValue(info, result);
445 }
446
447 } // namespace WebCore
448