1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/plugins/ipc/PluginScriptableObjectParent.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,1251 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * vim: sw=2 ts=2 et :
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#include "PluginScriptableObjectParent.h"
1.11 +
1.12 +#include "mozilla/DebugOnly.h"
1.13 +#include "mozilla/plugins/PluginIdentifierParent.h"
1.14 +#include "mozilla/unused.h"
1.15 +#include "nsCxPusher.h"
1.16 +#include "nsNPAPIPlugin.h"
1.17 +#include "PluginScriptableObjectUtils.h"
1.18 +
1.19 +using namespace mozilla::plugins;
1.20 +using namespace mozilla::plugins::parent;
1.21 +
1.22 +namespace {
1.23 +
1.24 +inline void
1.25 +ReleaseVariant(NPVariant& aVariant,
1.26 + PluginInstanceParent* aInstance)
1.27 +{
1.28 + const NPNetscapeFuncs* npn = GetNetscapeFuncs(aInstance);
1.29 + if (npn) {
1.30 + npn->releasevariantvalue(&aVariant);
1.31 + }
1.32 +}
1.33 +
1.34 +} // anonymous namespace
1.35 +
1.36 +// static
1.37 +NPObject*
1.38 +PluginScriptableObjectParent::ScriptableAllocate(NPP aInstance,
1.39 + NPClass* aClass)
1.40 +{
1.41 + if (aClass != GetClass()) {
1.42 + NS_ERROR("Huh?! Wrong class!");
1.43 + return nullptr;
1.44 + }
1.45 +
1.46 + return new ParentNPObject();
1.47 +}
1.48 +
1.49 +// static
1.50 +void
1.51 +PluginScriptableObjectParent::ScriptableInvalidate(NPObject* aObject)
1.52 +{
1.53 + if (aObject->_class != GetClass()) {
1.54 + NS_ERROR("Don't know what kind of object this is!");
1.55 + return;
1.56 + }
1.57 +
1.58 + ParentNPObject* object = reinterpret_cast<ParentNPObject*>(aObject);
1.59 + if (object->invalidated) {
1.60 + // This can happen more than once, and is just fine.
1.61 + return;
1.62 + }
1.63 +
1.64 + object->invalidated = true;
1.65 +
1.66 + // |object->parent| may be null already if the instance has gone away.
1.67 + if (object->parent && !object->parent->CallInvalidate()) {
1.68 + NS_ERROR("Failed to send message!");
1.69 + }
1.70 +}
1.71 +
1.72 +// static
1.73 +void
1.74 +PluginScriptableObjectParent::ScriptableDeallocate(NPObject* aObject)
1.75 +{
1.76 + if (aObject->_class != GetClass()) {
1.77 + NS_ERROR("Don't know what kind of object this is!");
1.78 + return;
1.79 + }
1.80 +
1.81 + ParentNPObject* object = reinterpret_cast<ParentNPObject*>(aObject);
1.82 + PluginScriptableObjectParent* actor = object->parent;
1.83 + if (actor) {
1.84 + NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
1.85 + actor->DropNPObject();
1.86 + }
1.87 +
1.88 + delete object;
1.89 +}
1.90 +
1.91 +// static
1.92 +bool
1.93 +PluginScriptableObjectParent::ScriptableHasMethod(NPObject* aObject,
1.94 + NPIdentifier aName)
1.95 +{
1.96 + if (aObject->_class != GetClass()) {
1.97 + NS_ERROR("Don't know what kind of object this is!");
1.98 + return false;
1.99 + }
1.100 +
1.101 + ParentNPObject* object = reinterpret_cast<ParentNPObject*>(aObject);
1.102 + if (object->invalidated) {
1.103 + NS_WARNING("Calling method on an invalidated object!");
1.104 + return false;
1.105 + }
1.106 +
1.107 + ProtectedActor<PluginScriptableObjectParent> actor(object->parent);
1.108 + if (!actor) {
1.109 + return false;
1.110 + }
1.111 +
1.112 + PluginIdentifierParent::StackIdentifier identifier(aObject, aName);
1.113 + if (!identifier) {
1.114 + return false;
1.115 + }
1.116 +
1.117 + NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
1.118 +
1.119 + bool result;
1.120 + if (!actor->CallHasMethod(identifier, &result)) {
1.121 + NS_WARNING("Failed to send message!");
1.122 + return false;
1.123 + }
1.124 +
1.125 + return result;
1.126 +}
1.127 +
1.128 +// static
1.129 +bool
1.130 +PluginScriptableObjectParent::ScriptableInvoke(NPObject* aObject,
1.131 + NPIdentifier aName,
1.132 + const NPVariant* aArgs,
1.133 + uint32_t aArgCount,
1.134 + NPVariant* aResult)
1.135 +{
1.136 + if (aObject->_class != GetClass()) {
1.137 + NS_ERROR("Don't know what kind of object this is!");
1.138 + return false;
1.139 + }
1.140 +
1.141 + ParentNPObject* object = reinterpret_cast<ParentNPObject*>(aObject);
1.142 + if (object->invalidated) {
1.143 + NS_WARNING("Calling method on an invalidated object!");
1.144 + return false;
1.145 + }
1.146 +
1.147 + ProtectedActor<PluginScriptableObjectParent> actor(object->parent);
1.148 + if (!actor) {
1.149 + return false;
1.150 + }
1.151 +
1.152 + PluginIdentifierParent::StackIdentifier identifier(aObject, aName);
1.153 + if (!identifier) {
1.154 + return false;
1.155 + }
1.156 +
1.157 + NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
1.158 +
1.159 + ProtectedVariantArray args(aArgs, aArgCount, actor->GetInstance());
1.160 + if (!args.IsOk()) {
1.161 + NS_ERROR("Failed to convert arguments!");
1.162 + return false;
1.163 + }
1.164 +
1.165 + Variant remoteResult;
1.166 + bool success;
1.167 + if (!actor->CallInvoke(identifier, args, &remoteResult,
1.168 + &success)) {
1.169 + NS_WARNING("Failed to send message!");
1.170 + return false;
1.171 + }
1.172 +
1.173 + if (!success) {
1.174 + return false;
1.175 + }
1.176 +
1.177 + if (!ConvertToVariant(remoteResult, *aResult, actor->GetInstance())) {
1.178 + NS_WARNING("Failed to convert result!");
1.179 + return false;
1.180 + }
1.181 + return true;
1.182 +}
1.183 +
1.184 +// static
1.185 +bool
1.186 +PluginScriptableObjectParent::ScriptableInvokeDefault(NPObject* aObject,
1.187 + const NPVariant* aArgs,
1.188 + uint32_t aArgCount,
1.189 + NPVariant* aResult)
1.190 +{
1.191 + if (aObject->_class != GetClass()) {
1.192 + NS_ERROR("Don't know what kind of object this is!");
1.193 + return false;
1.194 + }
1.195 +
1.196 + ParentNPObject* object = reinterpret_cast<ParentNPObject*>(aObject);
1.197 + if (object->invalidated) {
1.198 + NS_WARNING("Calling method on an invalidated object!");
1.199 + return false;
1.200 + }
1.201 +
1.202 + ProtectedActor<PluginScriptableObjectParent> actor(object->parent);
1.203 + if (!actor) {
1.204 + return false;
1.205 + }
1.206 +
1.207 + NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
1.208 +
1.209 + ProtectedVariantArray args(aArgs, aArgCount, actor->GetInstance());
1.210 + if (!args.IsOk()) {
1.211 + NS_ERROR("Failed to convert arguments!");
1.212 + return false;
1.213 + }
1.214 +
1.215 + Variant remoteResult;
1.216 + bool success;
1.217 + if (!actor->CallInvokeDefault(args, &remoteResult, &success)) {
1.218 + NS_WARNING("Failed to send message!");
1.219 + return false;
1.220 + }
1.221 +
1.222 + if (!success) {
1.223 + return false;
1.224 + }
1.225 +
1.226 + if (!ConvertToVariant(remoteResult, *aResult, actor->GetInstance())) {
1.227 + NS_WARNING("Failed to convert result!");
1.228 + return false;
1.229 + }
1.230 + return true;
1.231 +}
1.232 +
1.233 +// static
1.234 +bool
1.235 +PluginScriptableObjectParent::ScriptableHasProperty(NPObject* aObject,
1.236 + NPIdentifier aName)
1.237 +{
1.238 + if (aObject->_class != GetClass()) {
1.239 + NS_ERROR("Don't know what kind of object this is!");
1.240 + return false;
1.241 + }
1.242 +
1.243 + ParentNPObject* object = reinterpret_cast<ParentNPObject*>(aObject);
1.244 + if (object->invalidated) {
1.245 + NS_WARNING("Calling method on an invalidated object!");
1.246 + return false;
1.247 + }
1.248 +
1.249 + ProtectedActor<PluginScriptableObjectParent> actor(object->parent);
1.250 + if (!actor) {
1.251 + return false;
1.252 + }
1.253 +
1.254 + PluginIdentifierParent::StackIdentifier identifier(aObject, aName);
1.255 + if (!identifier) {
1.256 + return false;
1.257 + }
1.258 +
1.259 + NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
1.260 +
1.261 + bool result;
1.262 + if (!actor->CallHasProperty(identifier, &result)) {
1.263 + NS_WARNING("Failed to send message!");
1.264 + return false;
1.265 + }
1.266 +
1.267 + return result;
1.268 +}
1.269 +
1.270 +// static
1.271 +bool
1.272 +PluginScriptableObjectParent::ScriptableGetProperty(NPObject* aObject,
1.273 + NPIdentifier aName,
1.274 + NPVariant* aResult)
1.275 +{
1.276 + // See GetPropertyHelper below.
1.277 + NS_NOTREACHED("Shouldn't ever call this directly!");
1.278 + return false;
1.279 +}
1.280 +
1.281 +// static
1.282 +bool
1.283 +PluginScriptableObjectParent::ScriptableSetProperty(NPObject* aObject,
1.284 + NPIdentifier aName,
1.285 + const NPVariant* aValue)
1.286 +{
1.287 + if (aObject->_class != GetClass()) {
1.288 + NS_ERROR("Don't know what kind of object this is!");
1.289 + return false;
1.290 + }
1.291 +
1.292 + ParentNPObject* object = reinterpret_cast<ParentNPObject*>(aObject);
1.293 + if (object->invalidated) {
1.294 + NS_WARNING("Calling method on an invalidated object!");
1.295 + return false;
1.296 + }
1.297 +
1.298 + ProtectedActor<PluginScriptableObjectParent> actor(object->parent);
1.299 + if (!actor) {
1.300 + return false;
1.301 + }
1.302 +
1.303 + PluginIdentifierParent::StackIdentifier identifier(aObject, aName);
1.304 + if (!identifier) {
1.305 + return false;
1.306 + }
1.307 +
1.308 + NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
1.309 +
1.310 + ProtectedVariant value(*aValue, actor->GetInstance());
1.311 + if (!value.IsOk()) {
1.312 + NS_WARNING("Failed to convert variant!");
1.313 + return false;
1.314 + }
1.315 +
1.316 + bool success;
1.317 + if (!actor->CallSetProperty(identifier, value, &success)) {
1.318 + NS_WARNING("Failed to send message!");
1.319 + return false;
1.320 + }
1.321 +
1.322 + return success;
1.323 +}
1.324 +
1.325 +// static
1.326 +bool
1.327 +PluginScriptableObjectParent::ScriptableRemoveProperty(NPObject* aObject,
1.328 + NPIdentifier aName)
1.329 +{
1.330 + if (aObject->_class != GetClass()) {
1.331 + NS_ERROR("Don't know what kind of object this is!");
1.332 + return false;
1.333 + }
1.334 +
1.335 + ParentNPObject* object = reinterpret_cast<ParentNPObject*>(aObject);
1.336 + if (object->invalidated) {
1.337 + NS_WARNING("Calling method on an invalidated object!");
1.338 + return false;
1.339 + }
1.340 +
1.341 + ProtectedActor<PluginScriptableObjectParent> actor(object->parent);
1.342 + if (!actor) {
1.343 + return false;
1.344 + }
1.345 +
1.346 + PluginIdentifierParent::StackIdentifier identifier(aObject, aName);
1.347 + if (!identifier) {
1.348 + return false;
1.349 + }
1.350 +
1.351 + NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
1.352 +
1.353 + bool success;
1.354 + if (!actor->CallRemoveProperty(identifier, &success)) {
1.355 + NS_WARNING("Failed to send message!");
1.356 + return false;
1.357 + }
1.358 +
1.359 + return success;
1.360 +}
1.361 +
1.362 +// static
1.363 +bool
1.364 +PluginScriptableObjectParent::ScriptableEnumerate(NPObject* aObject,
1.365 + NPIdentifier** aIdentifiers,
1.366 + uint32_t* aCount)
1.367 +{
1.368 + if (aObject->_class != GetClass()) {
1.369 + NS_ERROR("Don't know what kind of object this is!");
1.370 + return false;
1.371 + }
1.372 +
1.373 + ParentNPObject* object = reinterpret_cast<ParentNPObject*>(aObject);
1.374 + if (object->invalidated) {
1.375 + NS_WARNING("Calling method on an invalidated object!");
1.376 + return false;
1.377 + }
1.378 +
1.379 + ProtectedActor<PluginScriptableObjectParent> actor(object->parent);
1.380 + if (!actor) {
1.381 + return false;
1.382 + }
1.383 +
1.384 + NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
1.385 +
1.386 + const NPNetscapeFuncs* npn = GetNetscapeFuncs(aObject);
1.387 + if (!npn) {
1.388 + NS_ERROR("No netscape funcs!");
1.389 + return false;
1.390 + }
1.391 +
1.392 + AutoInfallibleTArray<PPluginIdentifierParent*, 10> identifiers;
1.393 + bool success;
1.394 + if (!actor->CallEnumerate(&identifiers, &success)) {
1.395 + NS_WARNING("Failed to send message!");
1.396 + return false;
1.397 + }
1.398 +
1.399 + if (!success) {
1.400 + return false;
1.401 + }
1.402 +
1.403 + *aCount = identifiers.Length();
1.404 + if (!*aCount) {
1.405 + *aIdentifiers = nullptr;
1.406 + return true;
1.407 + }
1.408 +
1.409 + *aIdentifiers = (NPIdentifier*)npn->memalloc(*aCount * sizeof(NPIdentifier));
1.410 + if (!*aIdentifiers) {
1.411 + NS_ERROR("Out of memory!");
1.412 + return false;
1.413 + }
1.414 +
1.415 + for (uint32_t index = 0; index < *aCount; index++) {
1.416 + PluginIdentifierParent* id =
1.417 + static_cast<PluginIdentifierParent*>(identifiers[index]);
1.418 + (*aIdentifiers)[index] = id->ToNPIdentifier();
1.419 + }
1.420 + return true;
1.421 +}
1.422 +
1.423 +// static
1.424 +bool
1.425 +PluginScriptableObjectParent::ScriptableConstruct(NPObject* aObject,
1.426 + const NPVariant* aArgs,
1.427 + uint32_t aArgCount,
1.428 + NPVariant* aResult)
1.429 +{
1.430 + if (aObject->_class != GetClass()) {
1.431 + NS_ERROR("Don't know what kind of object this is!");
1.432 + return false;
1.433 + }
1.434 +
1.435 + ParentNPObject* object = reinterpret_cast<ParentNPObject*>(aObject);
1.436 + if (object->invalidated) {
1.437 + NS_WARNING("Calling method on an invalidated object!");
1.438 + return false;
1.439 + }
1.440 +
1.441 + ProtectedActor<PluginScriptableObjectParent> actor(object->parent);
1.442 + if (!actor) {
1.443 + return false;
1.444 + }
1.445 +
1.446 + NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
1.447 +
1.448 + ProtectedVariantArray args(aArgs, aArgCount, actor->GetInstance());
1.449 + if (!args.IsOk()) {
1.450 + NS_ERROR("Failed to convert arguments!");
1.451 + return false;
1.452 + }
1.453 +
1.454 + Variant remoteResult;
1.455 + bool success;
1.456 + if (!actor->CallConstruct(args, &remoteResult, &success)) {
1.457 + NS_WARNING("Failed to send message!");
1.458 + return false;
1.459 + }
1.460 +
1.461 + if (!success) {
1.462 + return false;
1.463 + }
1.464 +
1.465 + if (!ConvertToVariant(remoteResult, *aResult, actor->GetInstance())) {
1.466 + NS_WARNING("Failed to convert result!");
1.467 + return false;
1.468 + }
1.469 + return true;
1.470 +}
1.471 +
1.472 +const NPClass PluginScriptableObjectParent::sNPClass = {
1.473 + NP_CLASS_STRUCT_VERSION,
1.474 + PluginScriptableObjectParent::ScriptableAllocate,
1.475 + PluginScriptableObjectParent::ScriptableDeallocate,
1.476 + PluginScriptableObjectParent::ScriptableInvalidate,
1.477 + PluginScriptableObjectParent::ScriptableHasMethod,
1.478 + PluginScriptableObjectParent::ScriptableInvoke,
1.479 + PluginScriptableObjectParent::ScriptableInvokeDefault,
1.480 + PluginScriptableObjectParent::ScriptableHasProperty,
1.481 + PluginScriptableObjectParent::ScriptableGetProperty,
1.482 + PluginScriptableObjectParent::ScriptableSetProperty,
1.483 + PluginScriptableObjectParent::ScriptableRemoveProperty,
1.484 + PluginScriptableObjectParent::ScriptableEnumerate,
1.485 + PluginScriptableObjectParent::ScriptableConstruct
1.486 +};
1.487 +
1.488 +PluginScriptableObjectParent::PluginScriptableObjectParent(
1.489 + ScriptableObjectType aType)
1.490 +: mInstance(nullptr),
1.491 + mObject(nullptr),
1.492 + mProtectCount(0),
1.493 + mType(aType)
1.494 +{
1.495 +}
1.496 +
1.497 +PluginScriptableObjectParent::~PluginScriptableObjectParent()
1.498 +{
1.499 + if (mObject) {
1.500 + if (mObject->_class == GetClass()) {
1.501 + NS_ASSERTION(mType == Proxy, "Wrong type!");
1.502 + static_cast<ParentNPObject*>(mObject)->parent = nullptr;
1.503 + }
1.504 + else {
1.505 + NS_ASSERTION(mType == LocalObject, "Wrong type!");
1.506 + GetInstance()->GetNPNIface()->releaseobject(mObject);
1.507 + }
1.508 + }
1.509 +}
1.510 +
1.511 +void
1.512 +PluginScriptableObjectParent::InitializeProxy()
1.513 +{
1.514 + NS_ASSERTION(mType == Proxy, "Bad type!");
1.515 + NS_ASSERTION(!mObject, "Calling Initialize more than once!");
1.516 +
1.517 + mInstance = static_cast<PluginInstanceParent*>(Manager());
1.518 + NS_ASSERTION(mInstance, "Null manager?!");
1.519 +
1.520 + NPObject* object = CreateProxyObject();
1.521 + NS_ASSERTION(object, "Failed to create object!");
1.522 +
1.523 + if (!mInstance->RegisterNPObjectForActor(object, this)) {
1.524 + NS_ERROR("Out of memory?");
1.525 + }
1.526 +
1.527 + mObject = object;
1.528 +}
1.529 +
1.530 +void
1.531 +PluginScriptableObjectParent::InitializeLocal(NPObject* aObject)
1.532 +{
1.533 + NS_ASSERTION(mType == LocalObject, "Bad type!");
1.534 + NS_ASSERTION(!(mInstance && mObject), "Calling Initialize more than once!");
1.535 +
1.536 + mInstance = static_cast<PluginInstanceParent*>(Manager());
1.537 + NS_ASSERTION(mInstance, "Null manager?!");
1.538 +
1.539 + mInstance->GetNPNIface()->retainobject(aObject);
1.540 +
1.541 + NS_ASSERTION(!mProtectCount, "Should be zero!");
1.542 + mProtectCount++;
1.543 +
1.544 + if (!mInstance->RegisterNPObjectForActor(aObject, this)) {
1.545 + NS_ERROR("Out of memory?");
1.546 + }
1.547 +
1.548 + mObject = aObject;
1.549 +}
1.550 +
1.551 +NPObject*
1.552 +PluginScriptableObjectParent::CreateProxyObject()
1.553 +{
1.554 + NS_ASSERTION(mInstance, "Must have an instance!");
1.555 + NS_ASSERTION(mType == Proxy, "Shouldn't call this for non-proxy object!");
1.556 +
1.557 + const NPNetscapeFuncs* npn = GetNetscapeFuncs(mInstance);
1.558 +
1.559 + NPObject* npobject = npn->createobject(mInstance->GetNPP(),
1.560 + const_cast<NPClass*>(GetClass()));
1.561 + NS_ASSERTION(npobject, "Failed to create object?!");
1.562 + NS_ASSERTION(npobject->_class == GetClass(), "Wrong kind of object!");
1.563 + NS_ASSERTION(npobject->referenceCount == 1, "Some kind of live object!");
1.564 +
1.565 + ParentNPObject* object = static_cast<ParentNPObject*>(npobject);
1.566 + NS_ASSERTION(!object->invalidated, "Bad object!");
1.567 + NS_ASSERTION(!object->parent, "Bad object!");
1.568 +
1.569 + // We don't want to have the actor own this object but rather let the object
1.570 + // own this actor. Set the reference count to 0 here so that when the object
1.571 + // dies we will send the destructor message to the child.
1.572 + object->referenceCount = 0;
1.573 + NS_LOG_RELEASE(object, 0, "BrowserNPObject");
1.574 +
1.575 + object->parent = const_cast<PluginScriptableObjectParent*>(this);
1.576 + return object;
1.577 +}
1.578 +
1.579 +bool
1.580 +PluginScriptableObjectParent::ResurrectProxyObject()
1.581 +{
1.582 + NS_ASSERTION(mInstance, "Must have an instance already!");
1.583 + NS_ASSERTION(!mObject, "Should not have an object already!");
1.584 + NS_ASSERTION(mType == Proxy, "Shouldn't call this for non-proxy object!");
1.585 +
1.586 + InitializeProxy();
1.587 + NS_ASSERTION(mObject, "Initialize failed!");
1.588 +
1.589 + if (!SendProtect()) {
1.590 + NS_WARNING("Failed to send message!");
1.591 + return false;
1.592 + }
1.593 +
1.594 + return true;
1.595 +}
1.596 +
1.597 +NPObject*
1.598 +PluginScriptableObjectParent::GetObject(bool aCanResurrect)
1.599 +{
1.600 + if (!mObject && aCanResurrect && !ResurrectProxyObject()) {
1.601 + NS_ERROR("Null object!");
1.602 + return nullptr;
1.603 + }
1.604 + return mObject;
1.605 +}
1.606 +
1.607 +void
1.608 +PluginScriptableObjectParent::Protect()
1.609 +{
1.610 + NS_ASSERTION(mObject, "No object!");
1.611 + NS_ASSERTION(mProtectCount >= 0, "Negative protect count?!");
1.612 +
1.613 + if (mType == LocalObject) {
1.614 + ++mProtectCount;
1.615 + }
1.616 +}
1.617 +
1.618 +void
1.619 +PluginScriptableObjectParent::Unprotect()
1.620 +{
1.621 + NS_ASSERTION(mObject, "No object!");
1.622 + NS_ASSERTION(mProtectCount >= 0, "Negative protect count?!");
1.623 +
1.624 + if (mType == LocalObject) {
1.625 + if (--mProtectCount == 0) {
1.626 + unused << PluginScriptableObjectParent::Send__delete__(this);
1.627 + }
1.628 + }
1.629 +}
1.630 +
1.631 +void
1.632 +PluginScriptableObjectParent::DropNPObject()
1.633 +{
1.634 + NS_ASSERTION(mObject, "Invalidated object!");
1.635 + NS_ASSERTION(mObject->_class == GetClass(), "Wrong type of object!");
1.636 + NS_ASSERTION(mType == Proxy, "Shouldn't call this for non-proxy object!");
1.637 +
1.638 + // We think we're about to be deleted, but we could be racing with the other
1.639 + // process.
1.640 + PluginInstanceParent* instance = GetInstance();
1.641 + NS_ASSERTION(instance, "Must have an instance!");
1.642 +
1.643 + instance->UnregisterNPObject(mObject);
1.644 + mObject = nullptr;
1.645 +
1.646 + unused << SendUnprotect();
1.647 +}
1.648 +
1.649 +bool
1.650 +PluginScriptableObjectParent::AnswerHasMethod(PPluginIdentifierParent* aId,
1.651 + bool* aHasMethod)
1.652 +{
1.653 + if (!mObject) {
1.654 + NS_WARNING("Calling AnswerHasMethod with an invalidated object!");
1.655 + *aHasMethod = false;
1.656 + return true;
1.657 + }
1.658 +
1.659 + NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
1.660 + NS_ASSERTION(mType == LocalObject, "Bad type!");
1.661 +
1.662 + PluginInstanceParent* instance = GetInstance();
1.663 + if (!instance) {
1.664 + NS_ERROR("No instance?!");
1.665 + *aHasMethod = false;
1.666 + return true;
1.667 + }
1.668 +
1.669 + const NPNetscapeFuncs* npn = GetNetscapeFuncs(instance);
1.670 + if (!npn) {
1.671 + NS_ERROR("No netscape funcs?!");
1.672 + *aHasMethod = false;
1.673 + return true;
1.674 + }
1.675 +
1.676 + PluginIdentifierParent* id = static_cast<PluginIdentifierParent*>(aId);
1.677 + *aHasMethod = npn->hasmethod(instance->GetNPP(), mObject, id->ToNPIdentifier());
1.678 + return true;
1.679 +}
1.680 +
1.681 +bool
1.682 +PluginScriptableObjectParent::AnswerInvoke(PPluginIdentifierParent* aId,
1.683 + const InfallibleTArray<Variant>& aArgs,
1.684 + Variant* aResult,
1.685 + bool* aSuccess)
1.686 +{
1.687 + if (!mObject) {
1.688 + NS_WARNING("Calling AnswerInvoke with an invalidated object!");
1.689 + *aResult = void_t();
1.690 + *aSuccess = false;
1.691 + return true;
1.692 + }
1.693 +
1.694 + NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
1.695 + NS_ASSERTION(mType == LocalObject, "Bad type!");
1.696 +
1.697 + PluginInstanceParent* instance = GetInstance();
1.698 + if (!instance) {
1.699 + NS_ERROR("No instance?!");
1.700 + *aResult = void_t();
1.701 + *aSuccess = false;
1.702 + return true;
1.703 + }
1.704 +
1.705 + const NPNetscapeFuncs* npn = GetNetscapeFuncs(instance);
1.706 + if (!npn) {
1.707 + NS_ERROR("No netscape funcs?!");
1.708 + *aResult = void_t();
1.709 + *aSuccess = false;
1.710 + return true;
1.711 + }
1.712 +
1.713 + AutoFallibleTArray<NPVariant, 10> convertedArgs;
1.714 + uint32_t argCount = aArgs.Length();
1.715 +
1.716 + if (!convertedArgs.SetLength(argCount)) {
1.717 + *aResult = void_t();
1.718 + *aSuccess = false;
1.719 + return true;
1.720 + }
1.721 +
1.722 + for (uint32_t index = 0; index < argCount; index++) {
1.723 + if (!ConvertToVariant(aArgs[index], convertedArgs[index], instance)) {
1.724 + // Don't leak things we've already converted!
1.725 + while (index-- > 0) {
1.726 + ReleaseVariant(convertedArgs[index], instance);
1.727 + }
1.728 + *aResult = void_t();
1.729 + *aSuccess = false;
1.730 + return true;
1.731 + }
1.732 + }
1.733 +
1.734 + PluginIdentifierParent* id = static_cast<PluginIdentifierParent*>(aId);
1.735 + NPVariant result;
1.736 + bool success = npn->invoke(instance->GetNPP(), mObject, id->ToNPIdentifier(),
1.737 + convertedArgs.Elements(), argCount, &result);
1.738 +
1.739 + for (uint32_t index = 0; index < argCount; index++) {
1.740 + ReleaseVariant(convertedArgs[index], instance);
1.741 + }
1.742 +
1.743 + if (!success) {
1.744 + *aResult = void_t();
1.745 + *aSuccess = false;
1.746 + return true;
1.747 + }
1.748 +
1.749 + Variant convertedResult;
1.750 + success = ConvertToRemoteVariant(result, convertedResult, GetInstance());
1.751 +
1.752 + DeferNPVariantLastRelease(npn, &result);
1.753 +
1.754 + if (!success) {
1.755 + *aResult = void_t();
1.756 + *aSuccess = false;
1.757 + return true;
1.758 + }
1.759 +
1.760 + *aResult = convertedResult;
1.761 + *aSuccess = true;
1.762 + return true;
1.763 +}
1.764 +
1.765 +bool
1.766 +PluginScriptableObjectParent::AnswerInvokeDefault(const InfallibleTArray<Variant>& aArgs,
1.767 + Variant* aResult,
1.768 + bool* aSuccess)
1.769 +{
1.770 + if (!mObject) {
1.771 + NS_WARNING("Calling AnswerInvoke with an invalidated object!");
1.772 + *aResult = void_t();
1.773 + *aSuccess = false;
1.774 + return true;
1.775 + }
1.776 +
1.777 + NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
1.778 + NS_ASSERTION(mType == LocalObject, "Bad type!");
1.779 +
1.780 + PluginInstanceParent* instance = GetInstance();
1.781 + if (!instance) {
1.782 + NS_ERROR("No instance?!");
1.783 + *aResult = void_t();
1.784 + *aSuccess = false;
1.785 + return true;
1.786 + }
1.787 +
1.788 + const NPNetscapeFuncs* npn = GetNetscapeFuncs(instance);
1.789 + if (!npn) {
1.790 + NS_ERROR("No netscape funcs?!");
1.791 + *aResult = void_t();
1.792 + *aSuccess = false;
1.793 + return true;
1.794 + }
1.795 +
1.796 + AutoFallibleTArray<NPVariant, 10> convertedArgs;
1.797 + uint32_t argCount = aArgs.Length();
1.798 +
1.799 + if (!convertedArgs.SetLength(argCount)) {
1.800 + *aResult = void_t();
1.801 + *aSuccess = false;
1.802 + return true;
1.803 + }
1.804 +
1.805 + for (uint32_t index = 0; index < argCount; index++) {
1.806 + if (!ConvertToVariant(aArgs[index], convertedArgs[index], instance)) {
1.807 + // Don't leak things we've already converted!
1.808 + while (index-- > 0) {
1.809 + ReleaseVariant(convertedArgs[index], instance);
1.810 + }
1.811 + *aResult = void_t();
1.812 + *aSuccess = false;
1.813 + return true;
1.814 + }
1.815 + }
1.816 +
1.817 + NPVariant result;
1.818 + bool success = npn->invokeDefault(instance->GetNPP(), mObject,
1.819 + convertedArgs.Elements(), argCount,
1.820 + &result);
1.821 +
1.822 + for (uint32_t index = 0; index < argCount; index++) {
1.823 + ReleaseVariant(convertedArgs[index], instance);
1.824 + }
1.825 +
1.826 + if (!success) {
1.827 + *aResult = void_t();
1.828 + *aSuccess = false;
1.829 + return true;
1.830 + }
1.831 +
1.832 + Variant convertedResult;
1.833 + success = ConvertToRemoteVariant(result, convertedResult, GetInstance());
1.834 +
1.835 + DeferNPVariantLastRelease(npn, &result);
1.836 +
1.837 + if (!success) {
1.838 + *aResult = void_t();
1.839 + *aSuccess = false;
1.840 + return true;
1.841 + }
1.842 +
1.843 + *aResult = convertedResult;
1.844 + *aSuccess = true;
1.845 + return true;
1.846 +}
1.847 +
1.848 +bool
1.849 +PluginScriptableObjectParent::AnswerHasProperty(PPluginIdentifierParent* aId,
1.850 + bool* aHasProperty)
1.851 +{
1.852 + if (!mObject) {
1.853 + NS_WARNING("Calling AnswerHasProperty with an invalidated object!");
1.854 + *aHasProperty = false;
1.855 + return true;
1.856 + }
1.857 +
1.858 + NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
1.859 + NS_ASSERTION(mType == LocalObject, "Bad type!");
1.860 +
1.861 + PluginInstanceParent* instance = GetInstance();
1.862 + if (!instance) {
1.863 + NS_ERROR("No instance?!");
1.864 + *aHasProperty = false;
1.865 + return true;
1.866 + }
1.867 +
1.868 + const NPNetscapeFuncs* npn = GetNetscapeFuncs(instance);
1.869 + if (!npn) {
1.870 + NS_ERROR("No netscape funcs?!");
1.871 + *aHasProperty = false;
1.872 + return true;
1.873 + }
1.874 +
1.875 + PluginIdentifierParent* id = static_cast<PluginIdentifierParent*>(aId);
1.876 + *aHasProperty = npn->hasproperty(instance->GetNPP(), mObject,
1.877 + id->ToNPIdentifier());
1.878 + return true;
1.879 +}
1.880 +
1.881 +bool
1.882 +PluginScriptableObjectParent::AnswerGetParentProperty(
1.883 + PPluginIdentifierParent* aId,
1.884 + Variant* aResult,
1.885 + bool* aSuccess)
1.886 +{
1.887 + if (!mObject) {
1.888 + NS_WARNING("Calling AnswerGetProperty with an invalidated object!");
1.889 + *aResult = void_t();
1.890 + *aSuccess = false;
1.891 + return true;
1.892 + }
1.893 +
1.894 + NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
1.895 + NS_ASSERTION(mType == LocalObject, "Bad type!");
1.896 +
1.897 + PluginInstanceParent* instance = GetInstance();
1.898 + if (!instance) {
1.899 + NS_ERROR("No instance?!");
1.900 + *aResult = void_t();
1.901 + *aSuccess = false;
1.902 + return true;
1.903 + }
1.904 +
1.905 + const NPNetscapeFuncs* npn = GetNetscapeFuncs(instance);
1.906 + if (!npn) {
1.907 + NS_ERROR("No netscape funcs?!");
1.908 + *aResult = void_t();
1.909 + *aSuccess = false;
1.910 + return true;
1.911 + }
1.912 +
1.913 + PluginIdentifierParent* id = static_cast<PluginIdentifierParent*>(aId);
1.914 + NPVariant result;
1.915 + if (!npn->getproperty(instance->GetNPP(), mObject, id->ToNPIdentifier(),
1.916 + &result)) {
1.917 + *aResult = void_t();
1.918 + *aSuccess = false;
1.919 + return true;
1.920 + }
1.921 +
1.922 + Variant converted;
1.923 + if ((*aSuccess = ConvertToRemoteVariant(result, converted, instance))) {
1.924 + DeferNPVariantLastRelease(npn, &result);
1.925 + *aResult = converted;
1.926 + }
1.927 + else {
1.928 + *aResult = void_t();
1.929 + }
1.930 +
1.931 + return true;
1.932 +}
1.933 +
1.934 +bool
1.935 +PluginScriptableObjectParent::AnswerSetProperty(PPluginIdentifierParent* aId,
1.936 + const Variant& aValue,
1.937 + bool* aSuccess)
1.938 +{
1.939 + if (!mObject) {
1.940 + NS_WARNING("Calling AnswerSetProperty with an invalidated object!");
1.941 + *aSuccess = false;
1.942 + return true;
1.943 + }
1.944 +
1.945 + NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
1.946 + NS_ASSERTION(mType == LocalObject, "Bad type!");
1.947 +
1.948 + PluginInstanceParent* instance = GetInstance();
1.949 + if (!instance) {
1.950 + NS_ERROR("No instance?!");
1.951 + *aSuccess = false;
1.952 + return true;
1.953 + }
1.954 +
1.955 + const NPNetscapeFuncs* npn = GetNetscapeFuncs(instance);
1.956 + if (!npn) {
1.957 + NS_ERROR("No netscape funcs?!");
1.958 + *aSuccess = false;
1.959 + return true;
1.960 + }
1.961 +
1.962 + NPVariant converted;
1.963 + if (!ConvertToVariant(aValue, converted, instance)) {
1.964 + *aSuccess = false;
1.965 + return true;
1.966 + }
1.967 +
1.968 + PluginIdentifierParent* id = static_cast<PluginIdentifierParent*>(aId);
1.969 + if ((*aSuccess = npn->setproperty(instance->GetNPP(), mObject,
1.970 + id->ToNPIdentifier(), &converted))) {
1.971 + ReleaseVariant(converted, instance);
1.972 + }
1.973 + return true;
1.974 +}
1.975 +
1.976 +bool
1.977 +PluginScriptableObjectParent::AnswerRemoveProperty(PPluginIdentifierParent* aId,
1.978 + bool* aSuccess)
1.979 +{
1.980 + if (!mObject) {
1.981 + NS_WARNING("Calling AnswerRemoveProperty with an invalidated object!");
1.982 + *aSuccess = false;
1.983 + return true;
1.984 + }
1.985 +
1.986 + NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
1.987 + NS_ASSERTION(mType == LocalObject, "Bad type!");
1.988 +
1.989 + PluginInstanceParent* instance = GetInstance();
1.990 + if (!instance) {
1.991 + NS_ERROR("No instance?!");
1.992 + *aSuccess = false;
1.993 + return true;
1.994 + }
1.995 +
1.996 + const NPNetscapeFuncs* npn = GetNetscapeFuncs(instance);
1.997 + if (!npn) {
1.998 + NS_ERROR("No netscape funcs?!");
1.999 + *aSuccess = false;
1.1000 + return true;
1.1001 + }
1.1002 +
1.1003 + PluginIdentifierParent* id = static_cast<PluginIdentifierParent*>(aId);
1.1004 + *aSuccess = npn->removeproperty(instance->GetNPP(), mObject,
1.1005 + id->ToNPIdentifier());
1.1006 + return true;
1.1007 +}
1.1008 +
1.1009 +bool
1.1010 +PluginScriptableObjectParent::AnswerEnumerate(InfallibleTArray<PPluginIdentifierParent*>* aProperties,
1.1011 + bool* aSuccess)
1.1012 +{
1.1013 + if (!mObject) {
1.1014 + NS_WARNING("Calling AnswerEnumerate with an invalidated object!");
1.1015 + *aSuccess = false;
1.1016 + return true;
1.1017 + }
1.1018 +
1.1019 + NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
1.1020 + NS_ASSERTION(mType == LocalObject, "Bad type!");
1.1021 +
1.1022 + PluginInstanceParent* instance = GetInstance();
1.1023 + if (!instance) {
1.1024 + NS_ERROR("No instance?!");
1.1025 + *aSuccess = false;
1.1026 + return true;
1.1027 + }
1.1028 +
1.1029 + const NPNetscapeFuncs* npn = GetNetscapeFuncs(instance);
1.1030 + if (!npn) {
1.1031 + NS_WARNING("No netscape funcs?!");
1.1032 + *aSuccess = false;
1.1033 + return true;
1.1034 + }
1.1035 +
1.1036 + NPIdentifier* ids;
1.1037 + uint32_t idCount;
1.1038 + if (!npn->enumerate(instance->GetNPP(), mObject, &ids, &idCount)) {
1.1039 + *aSuccess = false;
1.1040 + return true;
1.1041 + }
1.1042 +
1.1043 + aProperties->SetCapacity(idCount);
1.1044 +
1.1045 + mozilla::AutoSafeJSContext cx;
1.1046 + for (uint32_t index = 0; index < idCount; index++) {
1.1047 + // Because of GC hazards, all identifiers returned from enumerate
1.1048 + // must be made permanent.
1.1049 + if (_identifierisstring(ids[index])) {
1.1050 + JS::Rooted<JSString*> str(cx, NPIdentifierToString(ids[index]));
1.1051 + if (!JS_StringHasBeenInterned(cx, str)) {
1.1052 + DebugOnly<JSString*> str2 = JS_InternJSString(cx, str);
1.1053 + NS_ASSERTION(str2 == str, "Interning a JS string which is currently an ID should return itself.");
1.1054 + }
1.1055 + }
1.1056 + PluginIdentifierParent* id =
1.1057 + instance->Module()->GetIdentifierForNPIdentifier(instance->GetNPP(), ids[index]);
1.1058 + aProperties->AppendElement(id);
1.1059 + NS_ASSERTION(!id->IsTemporary(), "Should only have permanent identifiers!");
1.1060 + }
1.1061 +
1.1062 + npn->memfree(ids);
1.1063 + *aSuccess = true;
1.1064 + return true;
1.1065 +}
1.1066 +
1.1067 +bool
1.1068 +PluginScriptableObjectParent::AnswerConstruct(const InfallibleTArray<Variant>& aArgs,
1.1069 + Variant* aResult,
1.1070 + bool* aSuccess)
1.1071 +{
1.1072 + if (!mObject) {
1.1073 + NS_WARNING("Calling AnswerConstruct with an invalidated object!");
1.1074 + *aResult = void_t();
1.1075 + *aSuccess = false;
1.1076 + return true;
1.1077 + }
1.1078 +
1.1079 + NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
1.1080 + NS_ASSERTION(mType == LocalObject, "Bad type!");
1.1081 +
1.1082 + PluginInstanceParent* instance = GetInstance();
1.1083 + if (!instance) {
1.1084 + NS_ERROR("No instance?!");
1.1085 + *aResult = void_t();
1.1086 + *aSuccess = false;
1.1087 + return true;
1.1088 + }
1.1089 +
1.1090 + const NPNetscapeFuncs* npn = GetNetscapeFuncs(instance);
1.1091 + if (!npn) {
1.1092 + NS_ERROR("No netscape funcs?!");
1.1093 + *aResult = void_t();
1.1094 + *aSuccess = false;
1.1095 + return true;
1.1096 + }
1.1097 +
1.1098 + AutoFallibleTArray<NPVariant, 10> convertedArgs;
1.1099 + uint32_t argCount = aArgs.Length();
1.1100 +
1.1101 + if (!convertedArgs.SetLength(argCount)) {
1.1102 + *aResult = void_t();
1.1103 + *aSuccess = false;
1.1104 + return true;
1.1105 + }
1.1106 +
1.1107 + for (uint32_t index = 0; index < argCount; index++) {
1.1108 + if (!ConvertToVariant(aArgs[index], convertedArgs[index], instance)) {
1.1109 + // Don't leak things we've already converted!
1.1110 + while (index-- > 0) {
1.1111 + ReleaseVariant(convertedArgs[index], instance);
1.1112 + }
1.1113 + *aResult = void_t();
1.1114 + *aSuccess = false;
1.1115 + return true;
1.1116 + }
1.1117 + }
1.1118 +
1.1119 + NPVariant result;
1.1120 + bool success = npn->construct(instance->GetNPP(), mObject,
1.1121 + convertedArgs.Elements(), argCount, &result);
1.1122 +
1.1123 + for (uint32_t index = 0; index < argCount; index++) {
1.1124 + ReleaseVariant(convertedArgs[index], instance);
1.1125 + }
1.1126 +
1.1127 + if (!success) {
1.1128 + *aResult = void_t();
1.1129 + *aSuccess = false;
1.1130 + return true;
1.1131 + }
1.1132 +
1.1133 + Variant convertedResult;
1.1134 + success = ConvertToRemoteVariant(result, convertedResult, instance);
1.1135 +
1.1136 + DeferNPVariantLastRelease(npn, &result);
1.1137 +
1.1138 + if (!success) {
1.1139 + *aResult = void_t();
1.1140 + *aSuccess = false;
1.1141 + return true;
1.1142 + }
1.1143 +
1.1144 + *aSuccess = true;
1.1145 + *aResult = convertedResult;
1.1146 + return true;
1.1147 +}
1.1148 +
1.1149 +bool
1.1150 +PluginScriptableObjectParent::RecvProtect()
1.1151 +{
1.1152 + NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
1.1153 + NS_ASSERTION(mType == LocalObject, "Bad type!");
1.1154 +
1.1155 + Protect();
1.1156 + return true;
1.1157 +}
1.1158 +
1.1159 +bool
1.1160 +PluginScriptableObjectParent::RecvUnprotect()
1.1161 +{
1.1162 + NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
1.1163 + NS_ASSERTION(mType == LocalObject, "Bad type!");
1.1164 +
1.1165 + Unprotect();
1.1166 + return true;
1.1167 +}
1.1168 +
1.1169 +bool
1.1170 +PluginScriptableObjectParent::AnswerNPN_Evaluate(const nsCString& aScript,
1.1171 + Variant* aResult,
1.1172 + bool* aSuccess)
1.1173 +{
1.1174 + PluginInstanceParent* instance = GetInstance();
1.1175 + if (!instance) {
1.1176 + NS_ERROR("No instance?!");
1.1177 + *aResult = void_t();
1.1178 + *aSuccess = false;
1.1179 + return true;
1.1180 + }
1.1181 +
1.1182 + const NPNetscapeFuncs* npn = GetNetscapeFuncs(instance);
1.1183 + if (!npn) {
1.1184 + NS_ERROR("No netscape funcs?!");
1.1185 + *aResult = void_t();
1.1186 + *aSuccess = false;
1.1187 + return true;
1.1188 + }
1.1189 +
1.1190 + NPString script = { aScript.get(), aScript.Length() };
1.1191 +
1.1192 + NPVariant result;
1.1193 + bool success = npn->evaluate(instance->GetNPP(), mObject, &script, &result);
1.1194 + if (!success) {
1.1195 + *aResult = void_t();
1.1196 + *aSuccess = false;
1.1197 + return true;
1.1198 + }
1.1199 +
1.1200 + Variant convertedResult;
1.1201 + success = ConvertToRemoteVariant(result, convertedResult, instance);
1.1202 +
1.1203 + DeferNPVariantLastRelease(npn, &result);
1.1204 +
1.1205 + if (!success) {
1.1206 + *aResult = void_t();
1.1207 + *aSuccess = false;
1.1208 + return true;
1.1209 + }
1.1210 +
1.1211 + *aSuccess = true;
1.1212 + *aResult = convertedResult;
1.1213 + return true;
1.1214 +}
1.1215 +
1.1216 +bool
1.1217 +PluginScriptableObjectParent::GetPropertyHelper(NPIdentifier aName,
1.1218 + bool* aHasProperty,
1.1219 + bool* aHasMethod,
1.1220 + NPVariant* aResult)
1.1221 +{
1.1222 + NS_ASSERTION(Type() == Proxy, "Bad type!");
1.1223 +
1.1224 + ParentNPObject* object = static_cast<ParentNPObject*>(mObject);
1.1225 + if (object->invalidated) {
1.1226 + NS_WARNING("Calling method on an invalidated object!");
1.1227 + return false;
1.1228 + }
1.1229 +
1.1230 + PluginIdentifierParent::StackIdentifier identifier(GetInstance(), aName);
1.1231 + if (!identifier) {
1.1232 + return false;
1.1233 + }
1.1234 +
1.1235 + bool hasProperty, hasMethod, success;
1.1236 + Variant result;
1.1237 + if (!CallGetChildProperty(identifier, &hasProperty, &hasMethod, &result,
1.1238 + &success)) {
1.1239 + return false;
1.1240 + }
1.1241 +
1.1242 + if (!success) {
1.1243 + return false;
1.1244 + }
1.1245 +
1.1246 + if (!ConvertToVariant(result, *aResult, GetInstance())) {
1.1247 + NS_WARNING("Failed to convert result!");
1.1248 + return false;
1.1249 + }
1.1250 +
1.1251 + *aHasProperty = hasProperty;
1.1252 + *aHasMethod = hasMethod;
1.1253 + return true;
1.1254 +}
