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      1 /*
      2  * Copyright (C) 2012 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 
     33 
     34 #include "core/inspector/InjectedScript.h"
     35 
     36 #include "bindings/v8/ScriptFunctionCall.h"
     37 #include "core/inspector/InjectedScriptHost.h"
     38 #include "platform/JSONValues.h"
     39 #include "wtf/text/WTFString.h"
     40 
     41 using WebCore::TypeBuilder::Array;
     42 using WebCore::TypeBuilder::Debugger::CallFrame;
     43 using WebCore::TypeBuilder::Runtime::PropertyDescriptor;
     44 using WebCore::TypeBuilder::Runtime::InternalPropertyDescriptor;
     45 using WebCore::TypeBuilder::Debugger::FunctionDetails;
     46 using WebCore::TypeBuilder::Runtime::RemoteObject;
     47 
     48 namespace WebCore {
     49 
     50 InjectedScript::InjectedScript()
     51     : InjectedScriptBase("InjectedScript")
     52 {
     53 }
     54 
     55 InjectedScript::InjectedScript(ScriptValue injectedScriptObject, InspectedStateAccessCheck accessCheck)
     56     : InjectedScriptBase("InjectedScript", injectedScriptObject, accessCheck)
     57 {
     58 }
     59 
     60 void InjectedScript::evaluate(ErrorString* errorString, const String& expression, const String& objectGroup, bool includeCommandLineAPI, bool returnByValue, bool generatePreview, RefPtr<TypeBuilder::Runtime::RemoteObject>* result, TypeBuilder::OptOutput<bool>* wasThrown)
     61 {
     62     ScriptFunctionCall function(injectedScriptObject(), "evaluate");
     63     function.appendArgument(expression);
     64     function.appendArgument(objectGroup);
     65     function.appendArgument(includeCommandLineAPI);
     66     function.appendArgument(returnByValue);
     67     function.appendArgument(generatePreview);
     68     makeEvalCall(errorString, function, result, wasThrown);
     69 }
     70 
     71 void InjectedScript::callFunctionOn(ErrorString* errorString, const String& objectId, const String& expression, const String& arguments, bool returnByValue, bool generatePreview, RefPtr<TypeBuilder::Runtime::RemoteObject>* result, TypeBuilder::OptOutput<bool>* wasThrown)
     72 {
     73     ScriptFunctionCall function(injectedScriptObject(), "callFunctionOn");
     74     function.appendArgument(objectId);
     75     function.appendArgument(expression);
     76     function.appendArgument(arguments);
     77     function.appendArgument(returnByValue);
     78     function.appendArgument(generatePreview);
     79     makeEvalCall(errorString, function, result, wasThrown);
     80 }
     81 
     82 void InjectedScript::evaluateOnCallFrame(ErrorString* errorString, const ScriptValue& callFrames, const Vector<ScriptValue>& asyncCallStacks, const String& callFrameId, const String& expression, const String& objectGroup, bool includeCommandLineAPI, bool returnByValue, bool generatePreview, RefPtr<RemoteObject>* result, TypeBuilder::OptOutput<bool>* wasThrown)
     83 {
     84     ScriptFunctionCall function(injectedScriptObject(), "evaluateOnCallFrame");
     85     function.appendArgument(callFrames);
     86     function.appendArgument(asyncCallStacks);
     87     function.appendArgument(callFrameId);
     88     function.appendArgument(expression);
     89     function.appendArgument(objectGroup);
     90     function.appendArgument(includeCommandLineAPI);
     91     function.appendArgument(returnByValue);
     92     function.appendArgument(generatePreview);
     93     makeEvalCall(errorString, function, result, wasThrown);
     94 }
     95 
     96 void InjectedScript::restartFrame(ErrorString* errorString, const ScriptValue& callFrames, const String& callFrameId, RefPtr<JSONObject>* result)
     97 {
     98     ScriptFunctionCall function(injectedScriptObject(), "restartFrame");
     99     function.appendArgument(callFrames);
    100     function.appendArgument(callFrameId);
    101     RefPtr<JSONValue> resultValue;
    102     makeCall(function, &resultValue);
    103     if (resultValue) {
    104         if (resultValue->type() == JSONValue::TypeString) {
    105             resultValue->asString(errorString);
    106             return;
    107         }
    108         if (resultValue->type() == JSONValue::TypeObject) {
    109             *result = resultValue->asObject();
    110             return;
    111         }
    112     }
    113     *errorString = "Internal error";
    114 }
    115 
    116 void InjectedScript::getStepInPositions(ErrorString* errorString, const ScriptValue& callFrames, const String& callFrameId, RefPtr<Array<TypeBuilder::Debugger::Location> >& positions)
    117 {
    118     ScriptFunctionCall function(injectedScriptObject(), "getStepInPositions");
    119     function.appendArgument(callFrames);
    120     function.appendArgument(callFrameId);
    121     RefPtr<JSONValue> resultValue;
    122     makeCall(function, &resultValue);
    123     if (resultValue) {
    124         if (resultValue->type() == JSONValue::TypeString) {
    125             resultValue->asString(errorString);
    126             return;
    127         }
    128         if (resultValue->type() == JSONValue::TypeArray) {
    129             positions = Array<TypeBuilder::Debugger::Location>::runtimeCast(resultValue);
    130             return;
    131         }
    132     }
    133     *errorString = "Internal error";
    134 }
    135 
    136 void InjectedScript::setVariableValue(ErrorString* errorString, const ScriptValue& callFrames, const String* callFrameIdOpt, const String* functionObjectIdOpt, int scopeNumber, const String& variableName, const String& newValueStr)
    137 {
    138     ScriptFunctionCall function(injectedScriptObject(), "setVariableValue");
    139     if (callFrameIdOpt) {
    140         function.appendArgument(callFrames);
    141         function.appendArgument(*callFrameIdOpt);
    142     } else {
    143         function.appendArgument(false);
    144         function.appendArgument(false);
    145     }
    146     if (functionObjectIdOpt)
    147         function.appendArgument(*functionObjectIdOpt);
    148     else
    149         function.appendArgument(false);
    150     function.appendArgument(scopeNumber);
    151     function.appendArgument(variableName);
    152     function.appendArgument(newValueStr);
    153     RefPtr<JSONValue> resultValue;
    154     makeCall(function, &resultValue);
    155     if (!resultValue) {
    156         *errorString = "Internal error";
    157         return;
    158     }
    159     if (resultValue->type() == JSONValue::TypeString) {
    160         resultValue->asString(errorString);
    161         return;
    162     }
    163     // Normal return.
    164 }
    165 
    166 void InjectedScript::getFunctionDetails(ErrorString* errorString, const String& functionId, RefPtr<FunctionDetails>* result)
    167 {
    168     ScriptFunctionCall function(injectedScriptObject(), "getFunctionDetails");
    169     function.appendArgument(functionId);
    170     RefPtr<JSONValue> resultValue;
    171     makeCall(function, &resultValue);
    172     if (!resultValue || resultValue->type() != JSONValue::TypeObject) {
    173         if (!resultValue->asString(errorString))
    174             *errorString = "Internal error";
    175         return;
    176     }
    177     *result = FunctionDetails::runtimeCast(resultValue);
    178 }
    179 
    180 void InjectedScript::getProperties(ErrorString* errorString, const String& objectId, bool ownProperties, bool accessorPropertiesOnly, RefPtr<Array<PropertyDescriptor> >* properties)
    181 {
    182     ScriptFunctionCall function(injectedScriptObject(), "getProperties");
    183     function.appendArgument(objectId);
    184     function.appendArgument(ownProperties);
    185     function.appendArgument(accessorPropertiesOnly);
    186 
    187     RefPtr<JSONValue> result;
    188     makeCall(function, &result);
    189     if (!result || result->type() != JSONValue::TypeArray) {
    190         *errorString = "Internal error";
    191         return;
    192     }
    193     *properties = Array<PropertyDescriptor>::runtimeCast(result);
    194 }
    195 
    196 void InjectedScript::getInternalProperties(ErrorString* errorString, const String& objectId, RefPtr<Array<InternalPropertyDescriptor> >* properties)
    197 {
    198     ScriptFunctionCall function(injectedScriptObject(), "getInternalProperties");
    199     function.appendArgument(objectId);
    200 
    201     RefPtr<JSONValue> result;
    202     makeCall(function, &result);
    203     if (!result || result->type() != JSONValue::TypeArray) {
    204         *errorString = "Internal error";
    205         return;
    206     }
    207     RefPtr<Array<InternalPropertyDescriptor> > array = Array<InternalPropertyDescriptor>::runtimeCast(result);
    208     if (array->length() > 0)
    209         *properties = array;
    210 }
    211 
    212 Node* InjectedScript::nodeForObjectId(const String& objectId)
    213 {
    214     if (isEmpty() || !canAccessInspectedWindow())
    215         return 0;
    216 
    217     ScriptFunctionCall function(injectedScriptObject(), "nodeForObjectId");
    218     function.appendArgument(objectId);
    219 
    220     bool hadException = false;
    221     ScriptValue resultValue = callFunctionWithEvalEnabled(function, hadException);
    222     ASSERT(!hadException);
    223 
    224     return InjectedScriptHost::scriptValueAsNode(scriptState(), resultValue);
    225 }
    226 
    227 void InjectedScript::releaseObject(const String& objectId)
    228 {
    229     ScriptFunctionCall function(injectedScriptObject(), "releaseObject");
    230     function.appendArgument(objectId);
    231     RefPtr<JSONValue> result;
    232     makeCall(function, &result);
    233 }
    234 
    235 PassRefPtr<Array<CallFrame> > InjectedScript::wrapCallFrames(const ScriptValue& callFrames, int asyncOrdinal)
    236 {
    237     ASSERT(!isEmpty());
    238     ScriptFunctionCall function(injectedScriptObject(), "wrapCallFrames");
    239     function.appendArgument(callFrames);
    240     function.appendArgument(asyncOrdinal);
    241     bool hadException = false;
    242     ScriptValue callFramesValue = callFunctionWithEvalEnabled(function, hadException);
    243     ASSERT(!hadException);
    244     RefPtr<JSONValue> result = callFramesValue.toJSONValue(scriptState());
    245     if (result && result->type() == JSONValue::TypeArray)
    246         return Array<CallFrame>::runtimeCast(result);
    247     return Array<CallFrame>::create();
    248 }
    249 
    250 PassRefPtr<TypeBuilder::Runtime::RemoteObject> InjectedScript::wrapObject(const ScriptValue& value, const String& groupName, bool generatePreview) const
    251 {
    252     ASSERT(!isEmpty());
    253     ScriptFunctionCall wrapFunction(injectedScriptObject(), "wrapObject");
    254     wrapFunction.appendArgument(value);
    255     wrapFunction.appendArgument(groupName);
    256     wrapFunction.appendArgument(canAccessInspectedWindow());
    257     wrapFunction.appendArgument(generatePreview);
    258     bool hadException = false;
    259     ScriptValue r = callFunctionWithEvalEnabled(wrapFunction, hadException);
    260     if (hadException)
    261         return nullptr;
    262     RefPtr<JSONObject> rawResult = r.toJSONValue(scriptState())->asObject();
    263     return TypeBuilder::Runtime::RemoteObject::runtimeCast(rawResult);
    264 }
    265 
    266 PassRefPtr<TypeBuilder::Runtime::RemoteObject> InjectedScript::wrapTable(const ScriptValue& table, const ScriptValue& columns) const
    267 {
    268     ASSERT(!isEmpty());
    269     ScriptFunctionCall wrapFunction(injectedScriptObject(), "wrapTable");
    270     wrapFunction.appendArgument(canAccessInspectedWindow());
    271     wrapFunction.appendArgument(table);
    272     if (columns.isEmpty())
    273         wrapFunction.appendArgument(false);
    274     else
    275         wrapFunction.appendArgument(columns);
    276     bool hadException = false;
    277     ScriptValue r = callFunctionWithEvalEnabled(wrapFunction, hadException);
    278     if (hadException)
    279         return nullptr;
    280     RefPtr<JSONObject> rawResult = r.toJSONValue(scriptState())->asObject();
    281     return TypeBuilder::Runtime::RemoteObject::runtimeCast(rawResult);
    282 }
    283 
    284 PassRefPtr<TypeBuilder::Runtime::RemoteObject> InjectedScript::wrapNode(Node* node, const String& groupName)
    285 {
    286     return wrapObject(nodeAsScriptValue(node), groupName);
    287 }
    288 
    289 ScriptValue InjectedScript::findObjectById(const String& objectId) const
    290 {
    291     ASSERT(!isEmpty());
    292     ScriptFunctionCall function(injectedScriptObject(), "findObjectById");
    293     function.appendArgument(objectId);
    294 
    295     bool hadException = false;
    296     ScriptValue resultValue = callFunctionWithEvalEnabled(function, hadException);
    297     ASSERT(!hadException);
    298     return resultValue;
    299 }
    300 
    301 void InjectedScript::inspectNode(Node* node)
    302 {
    303     ASSERT(!isEmpty());
    304     ScriptFunctionCall function(injectedScriptObject(), "inspectNode");
    305     function.appendArgument(nodeAsScriptValue(node));
    306     RefPtr<JSONValue> result;
    307     makeCall(function, &result);
    308 }
    309 
    310 void InjectedScript::releaseObjectGroup(const String& objectGroup)
    311 {
    312     ASSERT(!isEmpty());
    313     ScriptFunctionCall releaseFunction(injectedScriptObject(), "releaseObjectGroup");
    314     releaseFunction.appendArgument(objectGroup);
    315     bool hadException = false;
    316     callFunctionWithEvalEnabled(releaseFunction, hadException);
    317     ASSERT(!hadException);
    318 }
    319 
    320 ScriptValue InjectedScript::nodeAsScriptValue(Node* node)
    321 {
    322     return InjectedScriptHost::nodeAsScriptValue(scriptState(), node);
    323 }
    324 
    325 } // namespace WebCore
    326 
    327