public bool EvaluateTrustedScript(string jsScript, out string result)
{
throw new NotImplementedException();
var ptr = new JsVal();
IntPtr globalObject = SpiderMonkey.JS_GetGlobalForScopeChain(_cx);
bool ret;
IntPtr systemGlobalObject = SpiderMonkey.JS_GetGlobalForScopeChain(GlobalJSContextHolder.BackstageJSContext);
// Compartments have to be entered and left in LIFO order.
bool inSystemCompartment = false;
IntPtr oldCompartment = IntPtr.Zero;
try
{
// Allow access to any object on page.
oldCompartment = SpiderMonkey.JS_EnterCompartment(_cx, systemGlobalObject);
// At any time, a JSContext has a current (possibly-NULL) compartment.
inSystemCompartment = true;
ret = SpiderMonkey.JS_EvaluateScript(_cx, globalObject, jsScript, (uint)jsScript.Length, "script", 1, ref ptr);
result = ConvertValueToString(ptr);
}
finally
{
if (inSystemCompartment)
{
SpiderMonkey.JS_LeaveCompartment(_cx, oldCompartment);
}
}
return(ret);
}
/// <summary>
/// Evaluate javascript in the current context.
/// </summary>
/// <param name="jsScript"></param>
/// <param name="thisObject">a nsISupports com object that this is set too.</param>
/// <param name="result"></param>
/// <returns></returns>
public bool EvaluateScript(string jsScript, nsISupports thisObject, out string result)
{
try
{
var ptr = new JsVal();
IntPtr globalObject = ConvertCOMObjectToJSObject(thisObject);
using (new JSAutoCompartment(_cx, globalObject))
{
bool ret = SpiderMonkey.JS_EvaluateScript(_cx, globalObject, jsScript, (uint)jsScript.Length, "script", 1, ref ptr);
if (GetComponentsObject().GetUtilsAttribute().IsXrayWrapper(ref ptr))
{
ptr = GetComponentsObject().GetUtilsAttribute().WaiveXrays(ref ptr, _cx);
}
result = ret ? ConvertValueToString(ptr) : null;
return(ret);
}
}
catch (Exception e)
{
Console.WriteLine("Exception {0}", e);
result = String.Empty;
return(false);
}
}
/// <summary>
/// Evaluate JavaScript in specified window, and with specified scope.
/// Throws GeckoJavaScriptException on error.
/// </summary>
/// <param name="javascript">The javascript to run.</param>
/// <param name="window">The window to execuate javascript in. (ie. the global object)</param>
/// <param name="scope">object to use as scope.</param>
/// <returns>The return value of the script as a JsVal</returns>
public JsVal EvaluateScript(string javascript, nsISupports window, nsISupports scope)
{
string msg = String.Empty;
JsVal exceptionJsVal = default(JsVal);
IntPtr globalObject = ConvertCOMObjectToJSObject(window);
using (new JSAutoCompartment(ContextPointer, globalObject))
{
var old = SpiderMonkey.JS_SetErrorReporter(SpiderMonkey.JS_GetRuntime(ContextPointer),
(cx, message, report) =>
{
var exception = SpiderMonkey.JS_GetPendingException(ContextPointer);
if (exception != IntPtr.Zero)
{
exceptionJsVal = JsVal.FromPtr(exception);
}
msg = message;
});
try
{
var retJsVal = new JsVal();
bool ret;
// If not running in window scope.
if (window != scope)
{
var scopeJSVal = JsVal.FromPtr(ConvertCOMObjectToJSObject(scope));
if (!SpiderMonkey.JS_SetProperty(ContextPointer, globalObject, "__RequestedScope", scopeJSVal))
{
throw new GeckoException("Failed to set __RequestedScope Property.");
}
javascript = InsertReturnStatement(javascript);
string s = "(function() { " + javascript + " }).call(this.__RequestedScope)";
ret = SpiderMonkey.JS_EvaluateScript(ContextPointer, s, (uint)s.Length, "script", 1,
ref retJsVal);
}
else
{
ret = SpiderMonkey.JS_EvaluateScript(ContextPointer, javascript, (uint)javascript.Length,
"script", 1, ref retJsVal);
}
if (ret)
{
return(retJsVal);
}
msg += GetStackTrace(globalObject, exceptionJsVal);
throw new GeckoJavaScriptException(String.Format("JSError : {0}", msg));
}
finally
{
SpiderMonkey.JS_SetErrorReporter(SpiderMonkey.JS_GetRuntime(ContextPointer), old);
}
}
}
/// <summary>
/// Evaluate javascript in the current context.
/// </summary>
/// <param name="jsScript"></param>
/// <param name="jsval"></param>
/// <returns></returns>
public bool EvaluateScript(string jsScript, out string result)
{
var ptr = new JsVal();
bool ret = SpiderMonkey.JS_EvaluateScript(_cx, GetGlobalObject(), jsScript, (uint)jsScript.Length, "script", 1, ref ptr);
result = ret ? ConvertValueToString(ptr) : null;
return(ret);
}
/// <summary>
/// Evaluate javascript in the current context.
/// </summary>
/// <param name="jsScript"></param>
/// <param name="jsval"></param>
/// <returns></returns>
public bool EvaluateScript(string jsScript, out string result)
{
var ptr = new JsVal();
IntPtr globalObject = SpiderMonkey.JS_GetGlobalForScopeChain(_cx);
bool ret = SpiderMonkey.JS_EvaluateScript(_cx, globalObject, jsScript, (uint)jsScript.Length, "script", 1, ref ptr);
IntPtr jsStringPtr = SpiderMonkey.JS_ValueToString(_cx, ptr);
result = Marshal.PtrToStringAnsi(SpiderMonkey.JS_EncodeString(_cx, jsStringPtr));
return(ret);
}
/// <summary>
/// Evaluate javascript in the current context.
/// </summary>
/// <param name="jsScript"></param>
/// <param name="jsval"></param>
/// <returns></returns>
public bool EvaluateScript(string jsScript, out string result)
{
var ptr = new JsVal();
bool ret = SpiderMonkey.JS_EvaluateScript(_cx, GetGlobalObject(), jsScript, (uint)jsScript.Length, "script", 1, ref ptr);
// TODO: maybe getting JS_EvaluateScriptForPrincipals working would increase priviliges of the running script.
//bool ret = SpiderMonkey.JS_EvaluateScriptForPrincipals(_cx, globalObject, ..., jsScript, (uint)jsScript.Length,"script", 1, ref ptr);
result = ret ? ConvertValueToString(ptr) : null;
return(ret);
}
/// <summary>
/// Evaluate JavaScript in specified window, and with specified scope.
/// Throws GeckoJavaScriptException on error.
/// </summary>
/// <param name="javascript">The javascript to run.</param>
/// <param name="window">The window to execuate javascript in. (ie. the global object)</param>
/// <param name="scope">object to use as scope.</param>
/// <returns>The return value of the script as a JsVal</returns>
public JsVal EvaluateScript(string javascript, nsISupports window, nsISupports scope)
{
string msg = String.Empty;
JsVal exceptionJsVal = default(JsVal);
using (var globalObject = ConvertCOMObjectToJSObject(window))
using (new JSAutoCompartment(ContextPointer, globalObject.JSObject))
{
var retJsVal = new JsVal();
bool ret;
// If not running in window scope.
if (window != scope)
{
using (var scopeObject = ConvertCOMObjectToJSObject(scope))
{
var scopeJSVal = JsVal.FromPtr(scopeObject.JSObject);
var go = globalObject.JSObject;
if (!SpiderMonkey.JS_SetProperty(ContextPointer, ref go, "__RequestedScope",
ref scopeJSVal))
{
throw new GeckoException("Failed to set __RequestedScope Property.");
}
javascript = InsertReturnStatement(javascript);
string s = "(function() { " + javascript + " }).call(this.__RequestedScope)";
ret = SpiderMonkey.JS_EvaluateScript(ContextPointer, s, (uint)s.Length, "script", 1,
ref retJsVal);
}
}
else
{
ret = SpiderMonkey.JS_EvaluateScript(ContextPointer, javascript, (uint)javascript.Length,
"script", 1, ref retJsVal);
}
if (ret)
{
return(retJsVal);
}
var exception = SpiderMonkey.JS_GetPendingException(ContextPointer);
if (exception != IntPtr.Zero)
{
exceptionJsVal = JsVal.FromPtr(exception);
}
msg += exceptionJsVal.ToString();
msg += SpiderMonkey.GetStackTrace(ContextPointer, globalObject.JSObject, exceptionJsVal);
throw new GeckoJavaScriptException($"JSError : {msg}");
}
}
/// <summary>
/// Evaluate javascript in the current context.
/// </summary>
/// <param name="jsScript"></param>
/// <param name="jsval"></param>
/// <returns></returns>
public bool EvaluateScript(string jsScript, out string result)
{
var ptr = new JsVal();
IntPtr globalObject = SpiderMonkey.JS_GetGlobalForScopeChain(_cx);
bool ret = SpiderMonkey.JS_EvaluateScript(_cx, globalObject, jsScript, (uint)jsScript.Length, "script", 1, ref ptr);
// TODO: maybe getting JS_EvaluateScriptForPrincipals working would increase priviliges of the running script.
//bool ret = SpiderMonkey.JS_EvaluateScriptForPrincipals(_cx, globalObject, ..., jsScript, (uint)jsScript.Length,"script", 1, ref ptr);
IntPtr jsStringPtr = SpiderMonkey.JS_ValueToString(_cx, ptr);
result = Marshal.PtrToStringAnsi(SpiderMonkey.JS_EncodeString(_cx, jsStringPtr));
return(ret);
}
private string GetStackTrace(IntPtr globalObject, JsVal exceptionJsVal)
{
if (!exceptionJsVal.IsObject)
{
return(String.Empty);
}
if (!SpiderMonkey.JS_SetProperty(ContextPointer, globalObject, "__RequestedScope", exceptionJsVal))
{
throw new GeckoException("Failed to set __RequestedScope Property.");
}
const string s = "(function() { " + "return this.stack" + " }).call(this.__RequestedScope)";
var retJsVal = new JsVal();
var success = SpiderMonkey.JS_EvaluateScript(ContextPointer, s, (uint)s.Length, "script", 1, ref retJsVal);
return(!success ? String.Empty : String.Format(" StackTrace: {0}", retJsVal));
}
/// <summary>
/// Evaluate javascript in the current context.
/// </summary>
/// <param name="jsScript"></param>
/// <param name="thisObject">a nsISupports com object that this is set too.</param>
/// <param name="result"></param>
/// <returns></returns>
public bool EvaluateScript(string jsScript, nsISupports thisObject, out string result)
{
try
{
Guid guid = typeof(nsISupports).GUID;
IntPtr globalObject = SpiderMonkey.JS_GetGlobalForScopeChain(_cx);
var ptr = new JsVal();
var wrapper = XPConnect.WrapNative(_cx, globalObject, thisObject, ref guid);
bool ret = SpiderMonkey.JS_EvaluateScript(_cx, wrapper.GetJSObjectAttribute(), jsScript, (uint)jsScript.Length, "script", 1, ref ptr);
IntPtr jsStringPtr = SpiderMonkey.JS_ValueToString(_cx, ptr);
result = Marshal.PtrToStringAnsi(SpiderMonkey.JS_EncodeString(_cx, jsStringPtr));
return(ret);
}
catch (Exception e)
{
Console.WriteLine("Exception {0}", e);
result = String.Empty;
return(false);
}
}
/// <summary>
/// Evaluate javascript in the current context.
/// </summary>
/// <param name="jsScript"></param>
/// <param name="thisObject">a nsISupports com object that this is set too.</param>
/// <param name="result"></param>
/// <returns></returns>
public bool EvaluateScript(string jsScript, nsISupports thisObject, out string result)
{
try
{
Guid guid = typeof(nsISupports).GUID;
var ptr = new JsVal();
IntPtr globalObject = ConvertCOMObjectToJSObject(thisObject);
using (new JSAutoCompartment(_cx, globalObject))
{
bool ret = SpiderMonkey.JS_EvaluateScript(_cx, globalObject, jsScript, (uint)jsScript.Length, "script", 1, ref ptr);
result = ret ? ConvertValueToString(ptr) : null;
return(ret);
}
}
catch (Exception e)
{
Console.WriteLine("Exception {0}", e);
result = String.Empty;
return(false);
}
}
/// <summary>
/// Gets the nsIXPCComponents which is the javascript 'Components' objects
/// The Components objects is the main object XPConnect object.
/// </summary>
/// <returns></returns>
public nsIXPCComponents GetComponentsObject()
{
if (_nsIXPCComponents == null)
{
string javaScript = "Components";
var jsValue = new JsVal();
var ret = SpiderMonkey.JS_EvaluateScript(_cx, PeekCompartmentScope(), javaScript, (uint)javaScript.Length,
"script",
1, ref jsValue);
if (!ret || !jsValue.IsObject)
{
return(null);
}
_nsIXPCComponents = jsValue.ToObject() as nsIXPCComponents;
}
return(_nsIXPCComponents);
}
public JsVal EvaluateScript(string javaScript)
{
string msg = String.Empty;
var old = SpiderMonkey.JS_SetErrorReporter(_cx, (cx, message, report) => { msg = message; });
try
{
var jsValue = new JsVal();
var ret = SpiderMonkey.JS_EvaluateScript(_cx, PeekCompartmentScope(), javaScript, (uint)javaScript.Length, "script",
1, ref jsValue);
if (!ret)
{
throw new GeckoJavaScriptException(String.Format("JSError : {0}", msg));
}
return(jsValue);
}
finally
{
SpiderMonkey.JS_SetErrorReporter(_cx, old);
}
}
/// <summary>
/// Evaluate JavaScript in specified window.
/// Will throw a GeckoJavaScriptException if unable to convert window into a JsVal
/// </summary>
/// <param name="javascript">The javascript to run.</param>
/// <param name="window">The window to execuate javascript in.</param>
/// <returns>The return value of the script as a JsVal</returns>
public JsVal EvaluateScript(string javascript, nsIDOMWindow window)
{
string msg = String.Empty;
IntPtr globalObject = ConvertCOMObjectToJSObject((nsISupports)window);
using (new JSAutoCompartment(_cx, globalObject))
{
var old = SpiderMonkey.JS_SetErrorReporter(_cx, (cx, message, report) => { msg = message; });
try
{
var windowJsVal = new JsVal();
string jsScript = "this";
bool ret = SpiderMonkey.JS_EvaluateScript(_cx, globalObject, jsScript, (uint)jsScript.Length,
"script", 1, ref windowJsVal);
if (!ret)
{
throw new GeckoJavaScriptException(String.Format("JSError : {0}", msg));
}
if (GetComponentsObject().GetUtilsAttribute().IsXrayWrapper(ref windowJsVal))
{
windowJsVal = GetComponentsObject().GetUtilsAttribute().WaiveXrays(ref windowJsVal, _cx);
}
using (nsAStringBase b = new nsAString(javascript))
{
return(GetComponentsObject().GetUtilsAttribute().EvalInWindow(b, ref windowJsVal, _cx));
}
}
finally
{
SpiderMonkey.JS_SetErrorReporter(_cx, old);
}
}
}
