/// <summary>
/// Create a AutoJSContext using the SafeJSContext.
/// If context is IntPtr.Zero use the SafeJSContext
/// </summary>
/// <param name="context"></param>
public AutoJSContext(IntPtr context)
{
if (context == IntPtr.Zero)
{
_jsContextStack = Xpcom.GetService <nsIThreadJSContextStack>("@mozilla.org/js/xpc/ContextStack;1");
context = _jsContextStack.GetSafeJSContextAttribute();
}
_cx = context;
// begin a new request
JS_BeginRequest(_cx);
// push the context onto the context stack
_contextStack = Xpcom.GetService <nsIJSContextStack>("@mozilla.org/js/xpc/ContextStack;1");
_contextStack.Push(_cx);
// obtain the system principal (no security checks) (one could get a different principal by calling securityManager.GetObjectPrincipal())
_securityManager = Xpcom.GetService <nsIScriptSecurityManager>("@mozilla.org/scriptsecuritymanager;1");
_systemPrincipal = _securityManager.GetSystemPrincipal();
_jsPrincipals = _systemPrincipal.GetJSPrincipals(_cx);
_securityManager.PushContextPrincipal(_cx, IntPtr.Zero, _systemPrincipal);
}
/// <summary>
/// Create a AutoJSContext using the SafeJSContext.
/// If context is IntPtr.Zero use the SafeJSContext
/// </summary>
/// <param name="context"></param>
public AutoJSContext(IntPtr context)
{
if (context == IntPtr.Zero)
{
_jsContextStack = Xpcom.GetService<nsIThreadJSContextStack>("@mozilla.org/js/xpc/ContextStack;1");
// Due to GetSafeJSContext (being changed from an attribute to a virtual method in FF 15) we can no longer call
// it safely from C#. // TODO: find a better solution for this.
context = _jsContextStack.GetSafeJSContext();
}
_cx = context;
// TODO: calling BeginRequest may not be neccessary anymore.
// begin a new request
SpiderMonkey.JS_BeginRequest(_cx);
// TODO: pushing the context onto the context stack may not be neccessary anymore.
// push the context onto the context stack
_contextStack = Xpcom.GetService<nsIJSContextStack>( Contracts.JsContextStack );
_contextStack.Push(_cx);
// PushContextPrinciple was removed in firefox 16.
// TODO: It would be nice to get elevated security when running javascript from geckofx.
#if false
// obtain the system principal (no security checks) (one could get a different principal by calling securityManager.GetObjectPrincipal())
if (_securityManager == null)
{
_securityManager = Xpcom.GetService<nsIScriptSecurityManager>("@mozilla.org/scriptsecuritymanager;1");
}
_systemPrincipal = _securityManager.GetSystemPrincipal();
_securityManager.PushContextPrincipal(_cx, IntPtr.Zero, _systemPrincipal);
#endif
}
/// <summary>
/// Create a AutoJSContext using the SafeJSContext.
/// If context is IntPtr.Zero use the SafeJSContext
/// </summary>
/// <param name="context"></param>
public AutoJSContext(IntPtr context)
{
if (context == IntPtr.Zero)
{
_jsContextStack = Xpcom.GetService<nsIThreadJSContextStack>("@mozilla.org/js/xpc/ContextStack;1");
context = _jsContextStack.GetSafeJSContextAttribute();
}
_cx = context;
// begin a new request
SpiderMonkey.JS_BeginRequest(_cx);
// push the context onto the context stack
_contextStack = Xpcom.GetService<nsIJSContextStack>("@mozilla.org/js/xpc/ContextStack;1");
_contextStack.Push(_cx);
// obtain the system principal (no security checks) (one could get a different principal by calling securityManager.GetObjectPrincipal())
_securityManager = Xpcom.GetService<nsIScriptSecurityManager>("@mozilla.org/scriptsecuritymanager;1");
_systemPrincipal = _securityManager.GetSystemPrincipal();
_securityManager.PushContextPrincipal(_cx, IntPtr.Zero, _systemPrincipal);
}
