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1 /* | |
2 * Copyright (C) 2004, 2006 Apple Computer, Inc. All rights reserved. | |
3 * Copyright (C) 2007-2009 Google, Inc. All rights reserved. | |
4 * | |
5 * Redistribution and use in source and binary forms, with or without | |
6 * modification, are permitted provided that the following conditions | |
7 * are met: | |
8 * 1. Redistributions of source code must retain the above copyright | |
9 * notice, this list of conditions and the following disclaimer. | |
10 * 2. Redistributions in binary form must reproduce the above copyright | |
11 * notice, this list of conditions and the following disclaimer in the | |
12 * documentation and/or other materials provided with the distribution. | |
13 * | |
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
25 */ | |
26 | |
27 #include "config.h" | |
28 | |
29 #include <stdio.h> | |
30 | |
31 #define max max | |
32 #define min min | |
33 #include <v8.h> | |
34 #include "NPV8Object.h" | |
35 #include "ChromiumBridge.h" | |
36 #include "Frame.h" | |
37 #include "bindings/npruntime.h" | |
38 #include "npruntime_priv.h" | |
39 #include "PlatformString.h" | |
40 #include "ScriptController.h" | |
41 #include "V8CustomBinding.h" | |
42 #include "V8Helpers.h" | |
43 #include "V8NPUtils.h" | |
44 #include "v8_proxy.h" | |
45 #include "DOMWindow.h" | |
46 | |
47 using WebCore::toV8Context; | |
48 using WebCore::toV8Proxy; | |
49 using WebCore::V8ClassIndex; | |
50 using WebCore::V8Custom; | |
51 using WebCore::V8Proxy; | |
52 | |
53 // FIXME(mbelshe): comments on why use malloc and free. | |
54 static NPObject* AllocV8NPObject(NPP, NPClass*) | |
55 { | |
56 return static_cast<NPObject*>(malloc(sizeof(V8NPObject))); | |
57 } | |
58 | |
59 static void FreeV8NPObject(NPObject* npobj) | |
60 { | |
61 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
62 #ifndef NDEBUG | |
63 V8Proxy::UnregisterGlobalHandle(object, object->v8Object); | |
64 #endif | |
65 object->v8Object.Dispose(); | |
66 free(object); | |
67 } | |
68 | |
69 static v8::Handle<v8::Value>* listFromVariantArgs(const NPVariant* args, | |
70 uint32_t argCount, | |
71 NPObject *owner) | |
72 { | |
73 v8::Handle<v8::Value>* argv = new v8::Handle<v8::Value>[argCount]; | |
74 for (uint32_t index = 0; index < argCount; index++) { | |
75 const NPVariant *arg = &args[index]; | |
76 argv[index] = convertNPVariantToV8Object(arg, owner); | |
77 } | |
78 return argv; | |
79 } | |
80 | |
81 // Create an identifier (null terminated utf8 char*) from the NPIdentifier. | |
82 static v8::Local<v8::String> NPIdentifierToV8Identifier(NPIdentifier name) | |
83 { | |
84 PrivateIdentifier* identifier = static_cast<PrivateIdentifier*>(name); | |
85 if (identifier->isString) | |
86 return v8::String::New(static_cast<const char *>(identifier->value.strin
g)); | |
87 | |
88 char buf[32]; | |
89 sprintf(buf, "%d", identifier->value.number); | |
90 return v8::String::New(buf); | |
91 } | |
92 | |
93 static NPClass V8NPObjectClass = { NP_CLASS_STRUCT_VERSION, | |
94 AllocV8NPObject, | |
95 FreeV8NPObject, | |
96 0, 0, 0, 0, 0, 0, 0, 0, 0 }; | |
97 | |
98 // NPAPI's npruntime functions | |
99 NPClass* npScriptObjectClass = &V8NPObjectClass; | |
100 | |
101 NPObject* npCreateV8ScriptObject(NPP npp, v8::Handle<v8::Object> object, WebCore
::DOMWindow* root) | |
102 { | |
103 // Check to see if this object is already wrapped. | |
104 if (object->InternalFieldCount() == V8Custom::kNPObjectInternalFieldCount && | |
105 object->GetInternalField(V8Custom::kDOMWrapperTypeIndex)->IsNumber() && | |
106 object->GetInternalField(V8Custom::kDOMWrapperTypeIndex)->Uint32Value()
== V8ClassIndex::NPOBJECT) { | |
107 | |
108 NPObject* rv = V8Proxy::ToNativeObject<NPObject>(V8ClassIndex::NPOBJECT,
object); | |
109 NPN_RetainObject(rv); | |
110 return rv; | |
111 } | |
112 | |
113 V8NPObject* obj = reinterpret_cast<V8NPObject*>(NPN_CreateObject(npp, &V8NPO
bjectClass)); | |
114 obj->v8Object = v8::Persistent<v8::Object>::New(object); | |
115 #ifndef NDEBUG | |
116 V8Proxy::RegisterGlobalHandle(WebCore::NPOBJECT, obj, obj->v8Object); | |
117 #endif | |
118 obj->rootObject = root; | |
119 return reinterpret_cast<NPObject*>(obj); | |
120 } | |
121 | |
122 bool NPN_Invoke(NPP npp, NPObject *npobj, NPIdentifier methodName, | |
123 const NPVariant *args, uint32_t argCount, NPVariant *result) | |
124 { | |
125 if (!npobj) | |
126 return false; | |
127 | |
128 if (npobj->_class == npScriptObjectClass) { | |
129 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
130 | |
131 PrivateIdentifier *identifier = static_cast<PrivateIdentifier*>(methodNa
me); | |
132 if (!identifier->isString) | |
133 return false; | |
134 | |
135 v8::HandleScope handleScope; | |
136 // FIXME: should use the plugin's owner frame as the security context | |
137 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
138 if (context.IsEmpty()) | |
139 return false; | |
140 | |
141 v8::Context::Scope scope(context); | |
142 | |
143 // Special case the "eval" method. | |
144 if (methodName == NPN_GetStringIdentifier("eval")) { | |
145 if (argCount != 1) | |
146 return false; | |
147 if (args[0].type != NPVariantType_String) | |
148 return false; | |
149 return NPN_Evaluate(npp, npobj, const_cast<NPString*>(&args[0].value.s
tringValue), result); | |
150 } | |
151 | |
152 v8::Handle<v8::Value> funcObj = object->v8Object->Get(v8::String::New(id
entifier->value.string)); | |
153 if (funcObj.IsEmpty() || funcObj->IsNull()) { | |
154 NULL_TO_NPVARIANT(*result); | |
155 return false; | |
156 } | |
157 if (funcObj->IsUndefined()) { | |
158 VOID_TO_NPVARIANT(*result); | |
159 return false; | |
160 } | |
161 | |
162 V8Proxy* proxy = toV8Proxy(npobj); | |
163 ASSERT(proxy); // must not be null | |
164 | |
165 // FIXME: fix variable naming | |
166 // Call the function object | |
167 v8::Handle<v8::Function> func = v8::Handle<v8::Function>::Cast(funcObj); | |
168 // Create list of args to pass to v8 | |
169 v8::Handle<v8::Value>* argv = listFromVariantArgs(args, argCount, npobj)
; | |
170 v8::Local<v8::Value> resultObj = proxy->CallFunction(func, object->v8Obj
ect, argCount, argv); | |
171 delete[] argv; | |
172 | |
173 // If we had an error, return false. The spec is a little unclear here,
but | |
174 // says "Returns true if the method was successfully invoked". If we ge
t an | |
175 // error return value, was that successfully invoked? | |
176 if (resultObj.IsEmpty()) | |
177 return false; | |
178 | |
179 // Convert the result back to an NPVariant | |
180 convertV8ObjectToNPVariant(resultObj, npobj, result); | |
181 return true; | |
182 } | |
183 | |
184 if (npobj->_class->invoke) | |
185 return npobj->_class->invoke(npobj, methodName, args, argCount, result); | |
186 | |
187 VOID_TO_NPVARIANT(*result); | |
188 return true; | |
189 } | |
190 | |
191 // FIXME: Fix it same as NPN_Invoke (HandleScope and such) | |
192 bool NPN_InvokeDefault(NPP npp, NPObject *npobj, const NPVariant *args, | |
193 uint32_t argCount, NPVariant *result) | |
194 { | |
195 if (!npobj) | |
196 return false; | |
197 | |
198 if (npobj->_class == npScriptObjectClass) { | |
199 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
200 | |
201 VOID_TO_NPVARIANT(*result); | |
202 | |
203 v8::HandleScope handleScope; | |
204 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
205 if (context.IsEmpty()) | |
206 return false; | |
207 | |
208 v8::Context::Scope scope(context); | |
209 | |
210 // Lookup the function object | |
211 v8::Handle<v8::Object> funcObj(object->v8Object); | |
212 if (!funcObj->IsFunction()) | |
213 return false; | |
214 | |
215 // Call the function object | |
216 v8::Local<v8::Value> resultObj; | |
217 v8::Handle<v8::Function> func(v8::Function::Cast(*funcObj)); | |
218 if (!func->IsNull()) { | |
219 V8Proxy* proxy = toV8Proxy(npobj); | |
220 ASSERT(proxy); | |
221 | |
222 // Create list of args to pass to v8 | |
223 v8::Handle<v8::Value>* argv = listFromVariantArgs(args, argCount, np
obj); | |
224 resultObj = proxy->CallFunction(func, funcObj, argCount, argv); | |
225 delete[] argv; | |
226 } | |
227 | |
228 // If we had an error, return false. The spec is a little unclear here,
but | |
229 // says "Returns true if the method was successfully invoked". If we ge
t an | |
230 // error return value, was that successfully invoked? | |
231 if (resultObj.IsEmpty()) | |
232 return false; | |
233 | |
234 // Convert the result back to an NPVariant. | |
235 convertV8ObjectToNPVariant(resultObj, npobj, result); | |
236 return true; | |
237 } | |
238 | |
239 if (npobj->_class->invokeDefault) | |
240 return npobj->_class->invokeDefault(npobj, args, argCount, result); | |
241 | |
242 VOID_TO_NPVARIANT(*result); | |
243 return true; | |
244 } | |
245 | |
246 bool NPN_Evaluate(NPP npp, NPObject *npobj, NPString *npscript, NPVariant *resul
t) | |
247 { | |
248 bool popupsAllowed = WebCore::ChromiumBridge::popupsAllowed(npp); | |
249 return NPN_EvaluateHelper(npp, popupsAllowed, npobj, npscript, result); | |
250 } | |
251 | |
252 bool NPN_EvaluateHelper(NPP npp, bool popupsAllowed, NPObject* npobj, NPString*
npscript, NPVariant *result) | |
253 { | |
254 VOID_TO_NPVARIANT(*result); | |
255 if (!npobj) | |
256 return false; | |
257 | |
258 if (npobj->_class != npScriptObjectClass) | |
259 return false; | |
260 | |
261 v8::HandleScope handleScope; | |
262 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
263 if (context.IsEmpty()) | |
264 return false; | |
265 | |
266 V8Proxy* proxy = toV8Proxy(npobj); | |
267 ASSERT(proxy); | |
268 | |
269 v8::Context::Scope scope(context); | |
270 | |
271 WebCore::String filename; | |
272 if (!popupsAllowed) | |
273 filename = "npscript"; | |
274 | |
275 // Convert UTF-8 stream to WebCore::String. | |
276 WebCore::String script = WebCore::String::fromUTF8(npscript->UTF8Characters,
npscript->UTF8Length); | |
277 v8::Local<v8::Value> v8result = proxy->evaluate(WebCore::ScriptSourceCode(sc
ript, WebCore::KURL(filename)), 0); | |
278 | |
279 // If we had an error, return false. | |
280 if (v8result.IsEmpty()) | |
281 return false; | |
282 | |
283 convertV8ObjectToNPVariant(v8result, npobj, result); | |
284 return true; | |
285 } | |
286 | |
287 bool NPN_GetProperty(NPP npp, NPObject *npobj, NPIdentifier propertyName, NPVari
ant *result) | |
288 { | |
289 if (!npobj) | |
290 return false; | |
291 | |
292 if (npobj->_class == npScriptObjectClass) { | |
293 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
294 | |
295 v8::HandleScope handleScope; | |
296 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
297 if (context.IsEmpty()) | |
298 return false; | |
299 | |
300 v8::Context::Scope scope(context); | |
301 | |
302 v8::Handle<v8::Object> obj(object->v8Object); | |
303 v8::Local<v8::Value> v8result = obj->Get(NPIdentifierToV8Identifier(prop
ertyName)); | |
304 | |
305 convertV8ObjectToNPVariant(v8result, npobj, result); | |
306 return true; | |
307 } | |
308 | |
309 if (npobj->_class->hasProperty && npobj->_class->getProperty) { | |
310 if (npobj->_class->hasProperty(npobj, propertyName)) | |
311 return npobj->_class->getProperty(npobj, propertyName, result); | |
312 } | |
313 | |
314 VOID_TO_NPVARIANT(*result); | |
315 return false; | |
316 } | |
317 | |
318 bool NPN_SetProperty(NPP npp, NPObject *npobj, NPIdentifier propertyName, const
NPVariant *value) | |
319 { | |
320 if (!npobj) | |
321 return false; | |
322 | |
323 if (npobj->_class == npScriptObjectClass) { | |
324 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
325 | |
326 v8::HandleScope handleScope; | |
327 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
328 if (context.IsEmpty()) | |
329 return false; | |
330 | |
331 v8::Context::Scope scope(context); | |
332 | |
333 v8::Handle<v8::Object> obj(object->v8Object); | |
334 obj->Set(NPIdentifierToV8Identifier(propertyName), | |
335 convertNPVariantToV8Object(value, object->rootObject->frame()->
script()->windowScriptNPObject())); | |
336 return true; | |
337 } | |
338 | |
339 if (npobj->_class->setProperty) | |
340 return npobj->_class->setProperty(npobj, propertyName, value); | |
341 | |
342 return false; | |
343 } | |
344 | |
345 bool NPN_RemoveProperty(NPP npp, NPObject *npobj, NPIdentifier propertyName) | |
346 { | |
347 if (!npobj) | |
348 return false; | |
349 if (npobj->_class != npScriptObjectClass) | |
350 return false; | |
351 | |
352 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
353 | |
354 v8::HandleScope handleScope; | |
355 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
356 if (context.IsEmpty()) | |
357 return false; | |
358 v8::Context::Scope scope(context); | |
359 | |
360 v8::Handle<v8::Object> obj(object->v8Object); | |
361 // FIXME(mbelshe) - verify that setting to undefined is right. | |
362 obj->Set(NPIdentifierToV8Identifier(propertyName), v8::Undefined()); | |
363 return true; | |
364 } | |
365 | |
366 bool NPN_HasProperty(NPP npp, NPObject *npobj, NPIdentifier propertyName) | |
367 { | |
368 if (!npobj) | |
369 return false; | |
370 | |
371 if (npobj->_class == npScriptObjectClass) { | |
372 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
373 | |
374 v8::HandleScope handleScope; | |
375 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
376 if (context.IsEmpty()) | |
377 return false; | |
378 v8::Context::Scope scope(context); | |
379 | |
380 v8::Handle<v8::Object> obj(object->v8Object); | |
381 return obj->Has(NPIdentifierToV8Identifier(propertyName)); | |
382 } | |
383 | |
384 if (npobj->_class->hasProperty) | |
385 return npobj->_class->hasProperty(npobj, propertyName); | |
386 return false; | |
387 } | |
388 | |
389 bool NPN_HasMethod(NPP npp, NPObject *npobj, NPIdentifier methodName) | |
390 { | |
391 if (!npobj) | |
392 return false; | |
393 | |
394 if (npobj->_class == npScriptObjectClass) { | |
395 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
396 | |
397 v8::HandleScope handleScope; | |
398 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
399 if (context.IsEmpty()) | |
400 return false; | |
401 v8::Context::Scope scope(context); | |
402 | |
403 v8::Handle<v8::Object> obj(object->v8Object); | |
404 v8::Handle<v8::Value> prop = obj->Get(NPIdentifierToV8Identifier(methodN
ame)); | |
405 return prop->IsFunction(); | |
406 } | |
407 | |
408 if (npobj->_class->hasMethod) | |
409 return npobj->_class->hasMethod(npobj, methodName); | |
410 return false; | |
411 } | |
412 | |
413 void NPN_SetException(NPObject *npobj, const NPUTF8 *message) | |
414 { | |
415 if (npobj->_class != npScriptObjectClass) | |
416 return; | |
417 v8::HandleScope handleScope; | |
418 v8::Handle<v8::Context> context = toV8Context(0, npobj); | |
419 if (context.IsEmpty()) | |
420 return; | |
421 | |
422 v8::Context::Scope scope(context); | |
423 V8Proxy::ThrowError(V8Proxy::GENERAL_ERROR, message); | |
424 } | |
425 | |
426 bool NPN_Enumerate(NPP npp, NPObject *npobj, NPIdentifier **identifier, uint32_t
*count) | |
427 { | |
428 if (!npobj) | |
429 return false; | |
430 | |
431 if (npobj->_class == npScriptObjectClass) { | |
432 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
433 | |
434 v8::HandleScope handleScope; | |
435 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
436 if (context.IsEmpty()) | |
437 return false; | |
438 v8::Context::Scope scope(context); | |
439 | |
440 v8::Handle<v8::Object> obj(object->v8Object); | |
441 | |
442 // FIXME(fqian): http://b/issue?id=1210340: Use a v8::Object::Keys() met
hod | |
443 // when it exists, instead of evaluating javascript. | |
444 | |
445 // FIXME(mpcomplete): figure out how to cache this helper function. | |
446 // Run a helper function that collects the properties on the object into | |
447 // an array. | |
448 const char enumeratorCode[] = | |
449 "(function (obj) {" | |
450 " var props = [];" | |
451 " for (var prop in obj) {" | |
452 " props[props.length] = prop;" | |
453 " }" | |
454 " return props;" | |
455 "});"; | |
456 v8::Handle<v8::String> source = v8::String::New(enumeratorCode); | |
457 v8::Handle<v8::Script> script = v8::Script::Compile(source, 0); | |
458 v8::Handle<v8::Value> enumeratorObj = script->Run(); | |
459 v8::Handle<v8::Function> enumerator = v8::Handle<v8::Function>::Cast(enu
meratorObj); | |
460 v8::Handle<v8::Value> argv[] = { obj }; | |
461 v8::Local<v8::Value> propsObj = enumerator->Call(v8::Handle<v8::Object>:
:Cast(enumeratorObj), ARRAYSIZE_UNSAFE(argv), argv); | |
462 if (propsObj.IsEmpty()) | |
463 return false; | |
464 | |
465 // Convert the results into an array of NPIdentifiers. | |
466 v8::Handle<v8::Array> props = v8::Handle<v8::Array>::Cast(propsObj); | |
467 *count = props->Length(); | |
468 *identifier = static_cast<NPIdentifier*>(malloc(sizeof(NPIdentifier*) *
*count)); | |
469 for (uint32_t i = 0; i < *count; ++i) { | |
470 v8::Local<v8::Value> name = props->Get(v8::Integer::New(i)); | |
471 (*identifier)[i] = getStringIdentifier(v8::Local<v8::String>::Cast(n
ame)); | |
472 } | |
473 return true; | |
474 } | |
475 | |
476 if (NP_CLASS_STRUCT_VERSION_HAS_ENUM(npobj->_class) && npobj->_class->enumer
ate) | |
477 return npobj->_class->enumerate(npobj, identifier, count); | |
478 | |
479 return false; | |
480 } | |
481 | |
482 bool NPN_Construct(NPP npp, NPObject* npobj, const NPVariant* args, uint32_t arg
Count, NPVariant* result) | |
483 { | |
484 if (!npobj) | |
485 return false; | |
486 | |
487 if (npobj->_class == npScriptObjectClass) { | |
488 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
489 | |
490 v8::HandleScope handleScope; | |
491 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
492 if (context.IsEmpty()) | |
493 return false; | |
494 v8::Context::Scope scope(context); | |
495 | |
496 // Lookup the constructor function. | |
497 v8::Handle<v8::Object> ctorObj(object->v8Object); | |
498 if (!ctorObj->IsFunction()) | |
499 return false; | |
500 | |
501 // Call the constructor. | |
502 v8::Local<v8::Value> resultObj; | |
503 v8::Handle<v8::Function> ctor(v8::Function::Cast(*ctorObj)); | |
504 if (!ctor->IsNull()) { | |
505 V8Proxy* proxy = toV8Proxy(npobj); | |
506 ASSERT(proxy); | |
507 | |
508 // Create list of args to pass to v8. | |
509 v8::Handle<v8::Value>* argv = listFromVariantArgs(args, argCount, np
obj); | |
510 resultObj = proxy->NewInstance(ctor, argCount, argv); | |
511 delete[] argv; | |
512 } | |
513 | |
514 // If we had an error return false. | |
515 if (resultObj.IsEmpty()) | |
516 return false; | |
517 | |
518 // Convert the result back to an NPVariant. | |
519 convertV8ObjectToNPVariant(resultObj, npobj, result); | |
520 return true; | |
521 } | |
522 | |
523 if (NP_CLASS_STRUCT_VERSION_HAS_CTOR(npobj->_class) && npobj->_class->constr
uct) | |
524 return npobj->_class->construct(npobj, args, argCount, result); | |
525 | |
526 return false; | |
527 } | |
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