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gecko/js/xpconnect/src/XPCComponents.cpp

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=8 sw=4 et tw=78:
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* John Bandhauer <jband@netscape.com> (original author)
* Pierre Phaneuf <pp@ludusdesign.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/* The "Components" xpcom objects for JavaScript. */
#include "xpcprivate.h"
#include "nsReadableUtils.h"
#include "xpcIJSModuleLoader.h"
#include "nsIScriptObjectPrincipal.h"
#include "nsIDOMWindow.h"
#include "XPCJSWeakReference.h"
#include "XPCWrapper.h"
#include "jsproxy.h"
#include "WrapperFactory.h"
#include "XrayWrapper.h"
#include "nsNullPrincipal.h"
#include "nsJSUtils.h"
#include "mozJSComponentLoader.h"
#include "nsContentUtils.h"
/***************************************************************************/
// stuff used by all
static nsresult ThrowAndFail(uintN errNum, JSContext* cx, bool* retval)
{
XPCThrower::Throw(errNum, cx);
*retval = JS_FALSE;
return NS_OK;
}
static JSBool
JSValIsInterfaceOfType(JSContext *cx, jsval v, REFNSIID iid)
{
nsCOMPtr<nsIXPConnect> xpc;
nsCOMPtr<nsIXPConnectWrappedNative> wn;
nsCOMPtr<nsISupports> sup;
nsISupports* iface;
if (!JSVAL_IS_PRIMITIVE(v) &&
nsnull != (xpc = nsXPConnect::GetXPConnect()) &&
NS_SUCCEEDED(xpc->GetWrappedNativeOfJSObject(cx, JSVAL_TO_OBJECT(v),
getter_AddRefs(wn))) && wn &&
NS_SUCCEEDED(wn->Native()->QueryInterface(iid, (void**)&iface)) && iface) {
NS_RELEASE(iface);
return JS_TRUE;
}
return JS_FALSE;
}
char* xpc_CloneAllAccess()
{
static const char allAccess[] = "AllAccess";
return (char*)nsMemory::Clone(allAccess, sizeof(allAccess));
}
char * xpc_CheckAccessList(const PRUnichar* wideName, const char* list[])
{
nsCAutoString asciiName;
CopyUTF16toUTF8(nsDependentString(wideName), asciiName);
for (const char** p = list; *p; p++)
if (!strcmp(*p, asciiName.get()))
return xpc_CloneAllAccess();
return nsnull;
}
/***************************************************************************/
/***************************************************************************/
/***************************************************************************/
class nsXPCComponents_Interfaces :
public nsIXPCComponents_Interfaces,
public nsIXPCScriptable,
public nsIClassInfo,
public nsISecurityCheckedComponent
{
public:
// all the interface method declarations...
NS_DECL_ISUPPORTS
NS_DECL_NSIXPCCOMPONENTS_INTERFACES
NS_DECL_NSIXPCSCRIPTABLE
NS_DECL_NSICLASSINFO
NS_DECL_NSISECURITYCHECKEDCOMPONENT
public:
nsXPCComponents_Interfaces();
virtual ~nsXPCComponents_Interfaces();
private:
nsCOMPtr<nsIInterfaceInfoManager> mManager;
};
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
nsXPCComponents_Interfaces::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
const PRUint32 count = 3;
*aCount = count;
nsIID **array;
*aArray = array = static_cast<nsIID**>(nsMemory::Alloc(count * sizeof(nsIID*)));
if (!array)
return NS_ERROR_OUT_OF_MEMORY;
PRUint32 index = 0;
nsIID* clone;
#define PUSH_IID(id) \
clone = static_cast<nsIID *>(nsMemory::Clone(&NS_GET_IID( id ), \
sizeof(nsIID))); \
if (!clone) \
goto oom; \
array[index++] = clone;
PUSH_IID(nsIXPCComponents_Interfaces)
PUSH_IID(nsIXPCScriptable)
PUSH_IID(nsISecurityCheckedComponent)
#undef PUSH_IID
return NS_OK;
oom:
while (index)
nsMemory::Free(array[--index]);
nsMemory::Free(array);
*aArray = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCComponents_Interfaces::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
return NS_OK;
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
nsXPCComponents_Interfaces::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
return NS_ERROR_NOT_AVAILABLE;
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
nsXPCComponents_Interfaces::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents_Interfaces";
*aClassDescription = (char*)nsMemory::Clone(classDescription, sizeof(classDescription));
return *aClassDescription ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
nsXPCComponents_Interfaces::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
return NS_OK;
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
nsXPCComponents_Interfaces::GetImplementationLanguage(PRUint32 *aImplementationLanguage)
{
*aImplementationLanguage = nsIProgrammingLanguage::CPLUSPLUS;
return NS_OK;
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
nsXPCComponents_Interfaces::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
return NS_OK;
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
nsXPCComponents_Interfaces::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
}
nsXPCComponents_Interfaces::nsXPCComponents_Interfaces() :
mManager(do_GetService(NS_INTERFACEINFOMANAGER_SERVICE_CONTRACTID))
{
}
nsXPCComponents_Interfaces::~nsXPCComponents_Interfaces()
{
// empty
}
NS_INTERFACE_MAP_BEGIN(nsXPCComponents_Interfaces)
NS_INTERFACE_MAP_ENTRY(nsIXPCComponents_Interfaces)
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
NS_INTERFACE_MAP_ENTRY(nsISecurityCheckedComponent)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCComponents_Interfaces)
NS_INTERFACE_MAP_END_THREADSAFE
NS_IMPL_THREADSAFE_ADDREF(nsXPCComponents_Interfaces)
NS_IMPL_THREADSAFE_RELEASE(nsXPCComponents_Interfaces)
// The nsIXPCScriptable map declaration that will generate stubs for us...
#define XPC_MAP_CLASSNAME nsXPCComponents_Interfaces
#define XPC_MAP_QUOTED_CLASSNAME "nsXPCComponents_Interfaces"
#define XPC_MAP_WANT_NEWRESOLVE
#define XPC_MAP_WANT_NEWENUMERATE
#define XPC_MAP_FLAGS nsIXPCScriptable::DONT_ENUM_STATIC_PROPS |\
nsIXPCScriptable::ALLOW_PROP_MODS_DURING_RESOLVE
#include "xpc_map_end.h" /* This will #undef the above */
/* bool newEnumerate (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in PRUint32 enum_op, in JSValPtr statep, out JSID idp); */
NS_IMETHODIMP
nsXPCComponents_Interfaces::NewEnumerate(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
PRUint32 enum_op, jsval * statep,
jsid * idp, bool *_retval)
{
nsIEnumerator* e;
switch (enum_op) {
case JSENUMERATE_INIT:
case JSENUMERATE_INIT_ALL:
{
if (!mManager ||
NS_FAILED(mManager->EnumerateInterfaces(&e)) || !e ||
NS_FAILED(e->First()))
{
*statep = JSVAL_NULL;
return NS_ERROR_UNEXPECTED;
}
*statep = PRIVATE_TO_JSVAL(e);
if (idp)
*idp = INT_TO_JSID(0); // indicate that we don't know the count
return NS_OK;
}
case JSENUMERATE_NEXT:
{
nsCOMPtr<nsISupports> isup;
e = (nsIEnumerator*) JSVAL_TO_PRIVATE(*statep);
while (1) {
if (NS_ENUMERATOR_FALSE == e->IsDone() &&
NS_SUCCEEDED(e->CurrentItem(getter_AddRefs(isup))) && isup) {
e->Next();
nsCOMPtr<nsIInterfaceInfo> iface(do_QueryInterface(isup));
if (iface) {
JSString* idstr;
const char* name;
bool scriptable;
if (NS_SUCCEEDED(iface->IsScriptable(&scriptable)) &&
!scriptable) {
continue;
}
if (NS_SUCCEEDED(iface->GetNameShared(&name)) && name &&
nsnull != (idstr = JS_NewStringCopyZ(cx, name)) &&
JS_ValueToId(cx, STRING_TO_JSVAL(idstr), idp)) {
return NS_OK;
}
}
}
// else...
break;
}
// FALL THROUGH
}
case JSENUMERATE_DESTROY:
default:
e = (nsIEnumerator*) JSVAL_TO_PRIVATE(*statep);
NS_IF_RELEASE(e);
*statep = JSVAL_NULL;
return NS_OK;
}
}
/* bool newResolve (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in jsval id, in PRUint32 flags, out JSObjectPtr objp); */
NS_IMETHODIMP
nsXPCComponents_Interfaces::NewResolve(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
jsid id, PRUint32 flags,
JSObject * *objp, bool *_retval)
{
JSAutoByteString name;
if (mManager &&
JSID_IS_STRING(id) &&
name.encode(cx, JSID_TO_STRING(id)) &&
name.ptr()[0] != '{') { // we only allow interfaces by name here
nsCOMPtr<nsIInterfaceInfo> info;
mManager->GetInfoForName(name.ptr(), getter_AddRefs(info));
if (!info)
return NS_OK;
nsCOMPtr<nsIJSIID> nsid =
dont_AddRef(static_cast<nsIJSIID*>(nsJSIID::NewID(info)));
if (nsid) {
nsCOMPtr<nsIXPConnect> xpc;
wrapper->GetXPConnect(getter_AddRefs(xpc));
if (xpc) {
nsCOMPtr<nsIXPConnectJSObjectHolder> holder;
if (NS_SUCCEEDED(xpc->WrapNative(cx, obj,
static_cast<nsIJSIID*>(nsid),
NS_GET_IID(nsIJSIID),
getter_AddRefs(holder)))) {
JSObject* idobj;
if (holder && NS_SUCCEEDED(holder->GetJSObject(&idobj))) {
*objp = obj;
*_retval = JS_DefinePropertyById(cx, obj, id,
OBJECT_TO_JSVAL(idobj),
nsnull, nsnull,
JSPROP_ENUMERATE |
JSPROP_READONLY |
JSPROP_PERMANENT);
}
}
}
}
}
return NS_OK;
}
/* string canCreateWrapper (in nsIIDPtr iid); */
NS_IMETHODIMP
nsXPCComponents_Interfaces::CanCreateWrapper(const nsIID * iid, char **_retval)
{
// We let anyone do this...
*_retval = xpc_CloneAllAccess();
return NS_OK;
}
/* string canCallMethod (in nsIIDPtr iid, in wstring methodName); */
NS_IMETHODIMP
nsXPCComponents_Interfaces::CanCallMethod(const nsIID * iid, const PRUnichar *methodName, char **_retval)
{
// If you have to ask, then the answer is NO
*_retval = nsnull;
return NS_OK;
}
/* string canGetProperty (in nsIIDPtr iid, in wstring propertyName); */
NS_IMETHODIMP
nsXPCComponents_Interfaces::CanGetProperty(const nsIID * iid, const PRUnichar *propertyName, char **_retval)
{
// If you have to ask, then the answer is NO
*_retval = nsnull;
return NS_OK;
}
/* string canSetProperty (in nsIIDPtr iid, in wstring propertyName); */
NS_IMETHODIMP
nsXPCComponents_Interfaces::CanSetProperty(const nsIID * iid, const PRUnichar *propertyName, char **_retval)
{
// If you have to ask, then the answer is NO
*_retval = nsnull;
return NS_OK;
}
/***************************************************************************/
/***************************************************************************/
/***************************************************************************/
class nsXPCComponents_InterfacesByID :
public nsIXPCComponents_InterfacesByID,
public nsIXPCScriptable,
public nsIClassInfo,
public nsISecurityCheckedComponent
{
public:
// all the interface method declarations...
NS_DECL_ISUPPORTS
NS_DECL_NSIXPCCOMPONENTS_INTERFACESBYID
NS_DECL_NSIXPCSCRIPTABLE
NS_DECL_NSICLASSINFO
NS_DECL_NSISECURITYCHECKEDCOMPONENT
public:
nsXPCComponents_InterfacesByID();
virtual ~nsXPCComponents_InterfacesByID();
private:
nsCOMPtr<nsIInterfaceInfoManager> mManager;
};
/***************************************************************************/
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
nsXPCComponents_InterfacesByID::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
const PRUint32 count = 3;
*aCount = count;
nsIID **array;
*aArray = array = static_cast<nsIID**>(nsMemory::Alloc(count * sizeof(nsIID*)));
if (!array)
return NS_ERROR_OUT_OF_MEMORY;
PRUint32 index = 0;
nsIID* clone;
#define PUSH_IID(id) \
clone = static_cast<nsIID *>(nsMemory::Clone(&NS_GET_IID( id ), \
sizeof(nsIID))); \
if (!clone) \
goto oom; \
array[index++] = clone;
PUSH_IID(nsIXPCComponents_InterfacesByID)
PUSH_IID(nsIXPCScriptable)
PUSH_IID(nsISecurityCheckedComponent)
#undef PUSH_IID
return NS_OK;
oom:
while (index)
nsMemory::Free(array[--index]);
nsMemory::Free(array);
*aArray = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCComponents_InterfacesByID::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
return NS_OK;
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
nsXPCComponents_InterfacesByID::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
return NS_ERROR_NOT_AVAILABLE;
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
nsXPCComponents_InterfacesByID::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents_InterfacesByID";
*aClassDescription = (char*)nsMemory::Clone(classDescription, sizeof(classDescription));
return *aClassDescription ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
nsXPCComponents_InterfacesByID::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
return NS_OK;
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
nsXPCComponents_InterfacesByID::GetImplementationLanguage(PRUint32 *aImplementationLanguage)
{
*aImplementationLanguage = nsIProgrammingLanguage::CPLUSPLUS;
return NS_OK;
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
nsXPCComponents_InterfacesByID::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
return NS_OK;
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
nsXPCComponents_InterfacesByID::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
}
nsXPCComponents_InterfacesByID::nsXPCComponents_InterfacesByID() :
mManager(do_GetService(NS_INTERFACEINFOMANAGER_SERVICE_CONTRACTID))
{
}
nsXPCComponents_InterfacesByID::~nsXPCComponents_InterfacesByID()
{
// empty
}
NS_INTERFACE_MAP_BEGIN(nsXPCComponents_InterfacesByID)
NS_INTERFACE_MAP_ENTRY(nsIXPCComponents_InterfacesByID)
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
NS_INTERFACE_MAP_ENTRY(nsISecurityCheckedComponent)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCComponents_InterfacesByID)
NS_INTERFACE_MAP_END_THREADSAFE
NS_IMPL_THREADSAFE_ADDREF(nsXPCComponents_InterfacesByID)
NS_IMPL_THREADSAFE_RELEASE(nsXPCComponents_InterfacesByID)
// The nsIXPCScriptable map declaration that will generate stubs for us...
#define XPC_MAP_CLASSNAME nsXPCComponents_InterfacesByID
#define XPC_MAP_QUOTED_CLASSNAME "nsXPCComponents_InterfacesByID"
#define XPC_MAP_WANT_NEWRESOLVE
#define XPC_MAP_WANT_NEWENUMERATE
#define XPC_MAP_FLAGS nsIXPCScriptable::DONT_ENUM_STATIC_PROPS |\
nsIXPCScriptable::ALLOW_PROP_MODS_DURING_RESOLVE
#include "xpc_map_end.h" /* This will #undef the above */
/* bool newEnumerate (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in PRUint32 enum_op, in JSValPtr statep, out JSID idp); */
NS_IMETHODIMP
nsXPCComponents_InterfacesByID::NewEnumerate(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
PRUint32 enum_op, jsval * statep,
jsid * idp, bool *_retval)
{
nsIEnumerator* e;
switch (enum_op) {
case JSENUMERATE_INIT:
case JSENUMERATE_INIT_ALL:
{
if (!mManager ||
NS_FAILED(mManager->EnumerateInterfaces(&e)) || !e ||
NS_FAILED(e->First()))
{
*statep = JSVAL_NULL;
return NS_ERROR_UNEXPECTED;
}
*statep = PRIVATE_TO_JSVAL(e);
if (idp)
*idp = INT_TO_JSID(0); // indicate that we don't know the count
return NS_OK;
}
case JSENUMERATE_NEXT:
{
nsCOMPtr<nsISupports> isup;
e = (nsIEnumerator*) JSVAL_TO_PRIVATE(*statep);
while (1) {
if (NS_ENUMERATOR_FALSE == e->IsDone() &&
NS_SUCCEEDED(e->CurrentItem(getter_AddRefs(isup))) && isup) {
e->Next();
nsCOMPtr<nsIInterfaceInfo> iface(do_QueryInterface(isup));
if (iface) {
nsIID const *iid;
char idstr[NSID_LENGTH];
JSString* jsstr;
bool scriptable;
if (NS_SUCCEEDED(iface->IsScriptable(&scriptable)) &&
!scriptable) {
continue;
}
if (NS_SUCCEEDED(iface->GetIIDShared(&iid))) {
iid->ToProvidedString(idstr);
jsstr = JS_NewStringCopyZ(cx, idstr);
if (jsstr &&
JS_ValueToId(cx, STRING_TO_JSVAL(jsstr), idp)) {
return NS_OK;
}
}
}
}
// else...
break;
}
// FALL THROUGH
}
case JSENUMERATE_DESTROY:
default:
e = (nsIEnumerator*) JSVAL_TO_PRIVATE(*statep);
NS_IF_RELEASE(e);
*statep = JSVAL_NULL;
return NS_OK;
}
}
/* bool newResolve (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in jsval id, in PRUint32 flags, out JSObjectPtr objp); */
NS_IMETHODIMP
nsXPCComponents_InterfacesByID::NewResolve(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
jsid id, PRUint32 flags,
JSObject * *objp, bool *_retval)
{
const jschar* name = nsnull;
if (mManager &&
JSID_IS_STRING(id) &&
38 == JS_GetStringLength(JSID_TO_STRING(id)) &&
nsnull != (name = JS_GetInternedStringChars(JSID_TO_STRING(id)))) {
nsID iid;
if (!iid.Parse(NS_ConvertUTF16toUTF8(name).get()))
return NS_OK;
nsCOMPtr<nsIInterfaceInfo> info;
mManager->GetInfoForIID(&iid, getter_AddRefs(info));
if (!info)
return NS_OK;
nsCOMPtr<nsIJSIID> nsid =
dont_AddRef(static_cast<nsIJSIID*>(nsJSIID::NewID(info)));
if (!nsid)
return NS_ERROR_OUT_OF_MEMORY;
nsCOMPtr<nsIXPConnect> xpc;
wrapper->GetXPConnect(getter_AddRefs(xpc));
if (xpc) {
nsCOMPtr<nsIXPConnectJSObjectHolder> holder;
if (NS_SUCCEEDED(xpc->WrapNative(cx, obj,
static_cast<nsIJSIID*>(nsid),
NS_GET_IID(nsIJSIID),
getter_AddRefs(holder)))) {
JSObject* idobj;
if (holder && NS_SUCCEEDED(holder->GetJSObject(&idobj))) {
*objp = obj;
*_retval =
JS_DefinePropertyById(cx, obj, id,
OBJECT_TO_JSVAL(idobj),
nsnull, nsnull,
JSPROP_ENUMERATE |
JSPROP_READONLY |
JSPROP_PERMANENT);
}
}
}
}
return NS_OK;
}
/* string canCreateWrapper (in nsIIDPtr iid); */
NS_IMETHODIMP
nsXPCComponents_InterfacesByID::CanCreateWrapper(const nsIID * iid, char **_retval)
{
// We let anyone do this...
*_retval = xpc_CloneAllAccess();
return NS_OK;
}
/* string canCallMethod (in nsIIDPtr iid, in wstring methodName); */
NS_IMETHODIMP
nsXPCComponents_InterfacesByID::CanCallMethod(const nsIID * iid, const PRUnichar *methodName, char **_retval)
{
// If you have to ask, then the answer is NO
*_retval = nsnull;
return NS_OK;
}
/* string canGetProperty (in nsIIDPtr iid, in wstring propertyName); */
NS_IMETHODIMP
nsXPCComponents_InterfacesByID::CanGetProperty(const nsIID * iid, const PRUnichar *propertyName, char **_retval)
{
// If you have to ask, then the answer is NO
*_retval = nsnull;
return NS_OK;
}
/* string canSetProperty (in nsIIDPtr iid, in wstring propertyName); */
NS_IMETHODIMP
nsXPCComponents_InterfacesByID::CanSetProperty(const nsIID * iid, const PRUnichar *propertyName, char **_retval)
{
// If you have to ask, then the answer is NO
*_retval = nsnull;
return NS_OK;
}
/***************************************************************************/
/***************************************************************************/
/***************************************************************************/
class nsXPCComponents_Classes :
public nsIXPCComponents_Classes,
public nsIXPCScriptable,
public nsIClassInfo
{
public:
// all the interface method declarations...
NS_DECL_ISUPPORTS
NS_DECL_NSIXPCCOMPONENTS_CLASSES
NS_DECL_NSIXPCSCRIPTABLE
NS_DECL_NSICLASSINFO
public:
nsXPCComponents_Classes();
virtual ~nsXPCComponents_Classes();
};
/***************************************************************************/
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
nsXPCComponents_Classes::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
const PRUint32 count = 2;
*aCount = count;
nsIID **array;
*aArray = array = static_cast<nsIID**>(nsMemory::Alloc(count * sizeof(nsIID*)));
if (!array)
return NS_ERROR_OUT_OF_MEMORY;
PRUint32 index = 0;
nsIID* clone;
#define PUSH_IID(id) \
clone = static_cast<nsIID *>(nsMemory::Clone(&NS_GET_IID( id ), \
sizeof(nsIID))); \
if (!clone) \
goto oom; \
array[index++] = clone;
PUSH_IID(nsIXPCComponents_Classes)
PUSH_IID(nsIXPCScriptable)
#undef PUSH_IID
return NS_OK;
oom:
while (index)
nsMemory::Free(array[--index]);
nsMemory::Free(array);
*aArray = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCComponents_Classes::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
return NS_OK;
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
nsXPCComponents_Classes::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
return NS_ERROR_NOT_AVAILABLE;
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
nsXPCComponents_Classes::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents_Classes";
*aClassDescription = (char*)nsMemory::Clone(classDescription, sizeof(classDescription));
return *aClassDescription ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
nsXPCComponents_Classes::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
return NS_OK;
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
nsXPCComponents_Classes::GetImplementationLanguage(PRUint32 *aImplementationLanguage)
{
*aImplementationLanguage = nsIProgrammingLanguage::CPLUSPLUS;
return NS_OK;
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
nsXPCComponents_Classes::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
return NS_OK;
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
nsXPCComponents_Classes::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
}
nsXPCComponents_Classes::nsXPCComponents_Classes()
{
}
nsXPCComponents_Classes::~nsXPCComponents_Classes()
{
// empty
}
NS_INTERFACE_MAP_BEGIN(nsXPCComponents_Classes)
NS_INTERFACE_MAP_ENTRY(nsIXPCComponents_Classes)
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCComponents_Classes)
NS_INTERFACE_MAP_END_THREADSAFE
NS_IMPL_THREADSAFE_ADDREF(nsXPCComponents_Classes)
NS_IMPL_THREADSAFE_RELEASE(nsXPCComponents_Classes)
// The nsIXPCScriptable map declaration that will generate stubs for us...
#define XPC_MAP_CLASSNAME nsXPCComponents_Classes
#define XPC_MAP_QUOTED_CLASSNAME "nsXPCComponents_Classes"
#define XPC_MAP_WANT_NEWRESOLVE
#define XPC_MAP_WANT_NEWENUMERATE
#define XPC_MAP_FLAGS nsIXPCScriptable::DONT_ENUM_STATIC_PROPS |\
nsIXPCScriptable::ALLOW_PROP_MODS_DURING_RESOLVE
#include "xpc_map_end.h" /* This will #undef the above */
/* bool newEnumerate (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in PRUint32 enum_op, in JSValPtr statep, out JSID idp); */
NS_IMETHODIMP
nsXPCComponents_Classes::NewEnumerate(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
PRUint32 enum_op, jsval * statep,
jsid * idp, bool *_retval)
{
nsISimpleEnumerator* e;
switch (enum_op) {
case JSENUMERATE_INIT:
case JSENUMERATE_INIT_ALL:
{
nsCOMPtr<nsIComponentRegistrar> compMgr;
if (NS_FAILED(NS_GetComponentRegistrar(getter_AddRefs(compMgr))) || !compMgr ||
NS_FAILED(compMgr->EnumerateContractIDs(&e)) || !e ) {
*statep = JSVAL_NULL;
return NS_ERROR_UNEXPECTED;
}
*statep = PRIVATE_TO_JSVAL(e);
if (idp)
*idp = INT_TO_JSID(0); // indicate that we don't know the count
return NS_OK;
}
case JSENUMERATE_NEXT:
{
nsCOMPtr<nsISupports> isup;
bool hasMore;
e = (nsISimpleEnumerator*) JSVAL_TO_PRIVATE(*statep);
if (NS_SUCCEEDED(e->HasMoreElements(&hasMore)) && hasMore &&
NS_SUCCEEDED(e->GetNext(getter_AddRefs(isup))) && isup) {
nsCOMPtr<nsISupportsCString> holder(do_QueryInterface(isup));
if (holder) {
nsCAutoString name;
if (NS_SUCCEEDED(holder->GetData(name))) {
JSString* idstr = JS_NewStringCopyN(cx, name.get(), name.Length());
if (idstr &&
JS_ValueToId(cx, STRING_TO_JSVAL(idstr), idp)) {
return NS_OK;
}
}
}
}
// else... FALL THROUGH
}
case JSENUMERATE_DESTROY:
default:
e = (nsISimpleEnumerator*) JSVAL_TO_PRIVATE(*statep);
NS_IF_RELEASE(e);
*statep = JSVAL_NULL;
return NS_OK;
}
}
/* bool newResolve (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in jsval id, in PRUint32 flags, out JSObjectPtr objp); */
NS_IMETHODIMP
nsXPCComponents_Classes::NewResolve(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
jsid id, PRUint32 flags,
JSObject * *objp, bool *_retval)
{
JSAutoByteString name;
if (JSID_IS_STRING(id) &&
name.encode(cx, JSID_TO_STRING(id)) &&
name.ptr()[0] != '{') { // we only allow contractids here
nsCOMPtr<nsIJSCID> nsid =
dont_AddRef(static_cast<nsIJSCID*>(nsJSCID::NewID(name.ptr())));
if (nsid) {
nsCOMPtr<nsIXPConnect> xpc;
wrapper->GetXPConnect(getter_AddRefs(xpc));
if (xpc) {
nsCOMPtr<nsIXPConnectJSObjectHolder> holder;
if (NS_SUCCEEDED(xpc->WrapNative(cx, obj,
static_cast<nsIJSCID*>(nsid),
NS_GET_IID(nsIJSCID),
getter_AddRefs(holder)))) {
JSObject* idobj;
if (holder && NS_SUCCEEDED(holder->GetJSObject(&idobj))) {
*objp = obj;
*_retval = JS_DefinePropertyById(cx, obj, id,
OBJECT_TO_JSVAL(idobj),
nsnull, nsnull,
JSPROP_ENUMERATE |
JSPROP_READONLY |
JSPROP_PERMANENT);
}
}
}
}
}
return NS_OK;
}
/***************************************************************************/
/***************************************************************************/
/***************************************************************************/
class nsXPCComponents_ClassesByID :
public nsIXPCComponents_ClassesByID,
public nsIXPCScriptable,
public nsIClassInfo
{
public:
// all the interface method declarations...
NS_DECL_ISUPPORTS
NS_DECL_NSIXPCCOMPONENTS_CLASSESBYID
NS_DECL_NSIXPCSCRIPTABLE
NS_DECL_NSICLASSINFO
public:
nsXPCComponents_ClassesByID();
virtual ~nsXPCComponents_ClassesByID();
};
/***************************************************************************/
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
const PRUint32 count = 2;
*aCount = count;
nsIID **array;
*aArray = array = static_cast<nsIID**>(nsMemory::Alloc(count * sizeof(nsIID*)));
if (!array)
return NS_ERROR_OUT_OF_MEMORY;
PRUint32 index = 0;
nsIID* clone;
#define PUSH_IID(id) \
clone = static_cast<nsIID *>(nsMemory::Clone(&NS_GET_IID( id ), \
sizeof(nsIID))); \
if (!clone) \
goto oom; \
array[index++] = clone;
PUSH_IID(nsIXPCComponents_ClassesByID)
PUSH_IID(nsIXPCScriptable)
#undef PUSH_IID
return NS_OK;
oom:
while (index)
nsMemory::Free(array[--index]);
nsMemory::Free(array);
*aArray = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
return NS_OK;
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
return NS_ERROR_NOT_AVAILABLE;
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents_ClassesByID";
*aClassDescription = (char*)nsMemory::Clone(classDescription, sizeof(classDescription));
return *aClassDescription ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
return NS_OK;
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetImplementationLanguage(PRUint32 *aImplementationLanguage)
{
*aImplementationLanguage = nsIProgrammingLanguage::CPLUSPLUS;
return NS_OK;
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
return NS_OK;
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
}
nsXPCComponents_ClassesByID::nsXPCComponents_ClassesByID()
{
}
nsXPCComponents_ClassesByID::~nsXPCComponents_ClassesByID()
{
// empty
}
NS_INTERFACE_MAP_BEGIN(nsXPCComponents_ClassesByID)
NS_INTERFACE_MAP_ENTRY(nsIXPCComponents_ClassesByID)
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCComponents_ClassesByID)
NS_INTERFACE_MAP_END_THREADSAFE
NS_IMPL_THREADSAFE_ADDREF(nsXPCComponents_ClassesByID)
NS_IMPL_THREADSAFE_RELEASE(nsXPCComponents_ClassesByID)
// The nsIXPCScriptable map declaration that will generate stubs for us...
#define XPC_MAP_CLASSNAME nsXPCComponents_ClassesByID
#define XPC_MAP_QUOTED_CLASSNAME "nsXPCComponents_ClassesByID"
#define XPC_MAP_WANT_NEWRESOLVE
#define XPC_MAP_WANT_NEWENUMERATE
#define XPC_MAP_FLAGS nsIXPCScriptable::DONT_ENUM_STATIC_PROPS |\
nsIXPCScriptable::ALLOW_PROP_MODS_DURING_RESOLVE
#include "xpc_map_end.h" /* This will #undef the above */
/* bool newEnumerate (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in PRUint32 enum_op, in JSValPtr statep, out JSID idp); */
NS_IMETHODIMP
nsXPCComponents_ClassesByID::NewEnumerate(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
PRUint32 enum_op, jsval * statep,
jsid * idp, bool *_retval)
{
nsISimpleEnumerator* e;
switch (enum_op) {
case JSENUMERATE_INIT:
case JSENUMERATE_INIT_ALL:
{
nsCOMPtr<nsIComponentRegistrar> compMgr;
if (NS_FAILED(NS_GetComponentRegistrar(getter_AddRefs(compMgr))) || !compMgr ||
NS_FAILED(compMgr->EnumerateCIDs(&e)) || !e ) {
*statep = JSVAL_NULL;
return NS_ERROR_UNEXPECTED;
}
*statep = PRIVATE_TO_JSVAL(e);
if (idp)
*idp = INT_TO_JSID(0); // indicate that we don't know the count
return NS_OK;
}
case JSENUMERATE_NEXT:
{
nsCOMPtr<nsISupports> isup;
bool hasMore;
e = (nsISimpleEnumerator*) JSVAL_TO_PRIVATE(*statep);
if (NS_SUCCEEDED(e->HasMoreElements(&hasMore)) && hasMore &&
NS_SUCCEEDED(e->GetNext(getter_AddRefs(isup))) && isup) {
nsCOMPtr<nsISupportsID> holder(do_QueryInterface(isup));
if (holder) {
char* name;
if (NS_SUCCEEDED(holder->ToString(&name)) && name) {
JSString* idstr = JS_NewStringCopyZ(cx, name);
nsMemory::Free(name);
if (idstr &&
JS_ValueToId(cx, STRING_TO_JSVAL(idstr), idp)) {
return NS_OK;
}
}
}
}
// else... FALL THROUGH
}
case JSENUMERATE_DESTROY:
default:
e = (nsISimpleEnumerator*) JSVAL_TO_PRIVATE(*statep);
NS_IF_RELEASE(e);
*statep = JSVAL_NULL;
return NS_OK;
}
}
static bool
IsRegisteredCLSID(const char* str)
{
bool registered;
nsID id;
if (!id.Parse(str))
return false;
nsCOMPtr<nsIComponentRegistrar> compMgr;
if (NS_FAILED(NS_GetComponentRegistrar(getter_AddRefs(compMgr))) || !compMgr ||
NS_FAILED(compMgr->IsCIDRegistered(id, &registered)))
return false;
return registered;
}
/* bool newResolve (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in jsval id, in PRUint32 flags, out JSObjectPtr objp); */
NS_IMETHODIMP
nsXPCComponents_ClassesByID::NewResolve(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
jsid id, PRUint32 flags,
JSObject * *objp, bool *_retval)
{
JSAutoByteString name;
if (JSID_IS_STRING(id) &&
name.encode(cx, JSID_TO_STRING(id)) &&
name.ptr()[0] == '{' &&
IsRegisteredCLSID(name.ptr())) { // we only allow canonical CLSIDs here
nsCOMPtr<nsIJSCID> nsid =
dont_AddRef(static_cast<nsIJSCID*>(nsJSCID::NewID(name.ptr())));
if (nsid) {
nsCOMPtr<nsIXPConnect> xpc;
wrapper->GetXPConnect(getter_AddRefs(xpc));
if (xpc) {
nsCOMPtr<nsIXPConnectJSObjectHolder> holder;
if (NS_SUCCEEDED(xpc->WrapNative(cx, obj,
static_cast<nsIJSCID*>(nsid),
NS_GET_IID(nsIJSCID),
getter_AddRefs(holder)))) {
JSObject* idobj;
if (holder && NS_SUCCEEDED(holder->GetJSObject(&idobj))) {
*objp = obj;
*_retval = JS_DefinePropertyById(cx, obj, id,
OBJECT_TO_JSVAL(idobj),
nsnull, nsnull,
JSPROP_ENUMERATE |
JSPROP_READONLY |
JSPROP_PERMANENT);
}
}
}
}
}
return NS_OK;
}
/***************************************************************************/
// Currently the possible results do not change at runtime, so they are only
// cached once (unlike ContractIDs, CLSIDs, and IIDs)
class nsXPCComponents_Results :
public nsIXPCComponents_Results,
public nsIXPCScriptable,
public nsIClassInfo
{
public:
// all the interface method declarations...
NS_DECL_ISUPPORTS
NS_DECL_NSIXPCCOMPONENTS_RESULTS
NS_DECL_NSIXPCSCRIPTABLE
NS_DECL_NSICLASSINFO
public:
nsXPCComponents_Results();
virtual ~nsXPCComponents_Results();
};
/***************************************************************************/
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
nsXPCComponents_Results::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
const PRUint32 count = 2;
*aCount = count;
nsIID **array;
*aArray = array = static_cast<nsIID**>(nsMemory::Alloc(count * sizeof(nsIID*)));
if (!array)
return NS_ERROR_OUT_OF_MEMORY;
PRUint32 index = 0;
nsIID* clone;
#define PUSH_IID(id) \
clone = static_cast<nsIID *>(nsMemory::Clone(&NS_GET_IID( id ), \
sizeof(nsIID))); \
if (!clone) \
goto oom; \
array[index++] = clone;
PUSH_IID(nsIXPCComponents_Results)
PUSH_IID(nsIXPCScriptable)
#undef PUSH_IID
return NS_OK;
oom:
while (index)
nsMemory::Free(array[--index]);
nsMemory::Free(array);
*aArray = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCComponents_Results::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
return NS_OK;
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
nsXPCComponents_Results::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
return NS_ERROR_NOT_AVAILABLE;
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
nsXPCComponents_Results::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents_Results";
*aClassDescription = (char*)nsMemory::Clone(classDescription, sizeof(classDescription));
return *aClassDescription ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
nsXPCComponents_Results::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
return NS_OK;
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
nsXPCComponents_Results::GetImplementationLanguage(PRUint32 *aImplementationLanguage)
{
*aImplementationLanguage = nsIProgrammingLanguage::CPLUSPLUS;
return NS_OK;
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
nsXPCComponents_Results::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
return NS_OK;
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
nsXPCComponents_Results::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
}
nsXPCComponents_Results::nsXPCComponents_Results()
{
}
nsXPCComponents_Results::~nsXPCComponents_Results()
{
// empty
}
NS_INTERFACE_MAP_BEGIN(nsXPCComponents_Results)
NS_INTERFACE_MAP_ENTRY(nsIXPCComponents_Results)
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCComponents_Results)
NS_INTERFACE_MAP_END_THREADSAFE
NS_IMPL_THREADSAFE_ADDREF(nsXPCComponents_Results)
NS_IMPL_THREADSAFE_RELEASE(nsXPCComponents_Results)
// The nsIXPCScriptable map declaration that will generate stubs for us...
#define XPC_MAP_CLASSNAME nsXPCComponents_Results
#define XPC_MAP_QUOTED_CLASSNAME "nsXPCComponents_Results"
#define XPC_MAP_WANT_NEWRESOLVE
#define XPC_MAP_WANT_NEWENUMERATE
#define XPC_MAP_FLAGS nsIXPCScriptable::DONT_ENUM_STATIC_PROPS |\
nsIXPCScriptable::ALLOW_PROP_MODS_DURING_RESOLVE
#include "xpc_map_end.h" /* This will #undef the above */
/* bool newEnumerate (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in PRUint32 enum_op, in JSValPtr statep, out JSID idp); */
NS_IMETHODIMP
nsXPCComponents_Results::NewEnumerate(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
PRUint32 enum_op, jsval * statep,
jsid * idp, bool *_retval)
{
void** iter;
switch (enum_op) {
case JSENUMERATE_INIT:
case JSENUMERATE_INIT_ALL:
{
if (idp)
*idp = INT_TO_JSID(nsXPCException::GetNSResultCount());
void** space = (void**) new char[sizeof(void*)];
*space = nsnull;
*statep = PRIVATE_TO_JSVAL(space);
return NS_OK;
}
case JSENUMERATE_NEXT:
{
const char* name;
iter = (void**) JSVAL_TO_PRIVATE(*statep);
if (nsXPCException::IterateNSResults(nsnull, &name, nsnull, iter)) {
JSString* idstr = JS_NewStringCopyZ(cx, name);
if (idstr && JS_ValueToId(cx, STRING_TO_JSVAL(idstr), idp))
return NS_OK;
}
// else... FALL THROUGH
}
case JSENUMERATE_DESTROY:
default:
iter = (void**) JSVAL_TO_PRIVATE(*statep);
delete [] (char*) iter;
*statep = JSVAL_NULL;
return NS_OK;
}
}
/* bool newResolve (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in jsval id, in PRUint32 flags, out JSObjectPtr objp); */
NS_IMETHODIMP
nsXPCComponents_Results::NewResolve(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
jsid id, PRUint32 flags,
JSObject * *objp, bool *_retval)
{
JSAutoByteString name;
if (JSID_IS_STRING(id) && name.encode(cx, JSID_TO_STRING(id))) {
const char* rv_name;
void* iter = nsnull;
nsresult rv;
while (nsXPCException::IterateNSResults(&rv, &rv_name, nsnull, &iter)) {
if (!strcmp(name.ptr(), rv_name)) {
jsval val;
*objp = obj;
if (!JS_NewNumberValue(cx, (jsdouble)rv, &val) ||
!JS_DefinePropertyById(cx, obj, id, val,
nsnull, nsnull,
JSPROP_ENUMERATE |
JSPROP_READONLY |
JSPROP_PERMANENT)) {
return NS_ERROR_UNEXPECTED;
}
}
}
}
return NS_OK;
}
/***************************************************************************/
// JavaScript Constructor for nsIJSID objects (Components.ID)
class nsXPCComponents_ID :
public nsIXPCComponents_ID,
public nsIXPCScriptable,
public nsIClassInfo
{
public:
// all the interface method declarations...
NS_DECL_ISUPPORTS
NS_DECL_NSIXPCCOMPONENTS_ID
NS_DECL_NSIXPCSCRIPTABLE
NS_DECL_NSICLASSINFO
public:
nsXPCComponents_ID();
virtual ~nsXPCComponents_ID();
private:
static nsresult CallOrConstruct(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
PRUint32 argc, jsval * argv,
jsval * vp, bool *_retval);
};
/***************************************************************************/
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
nsXPCComponents_ID::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
const PRUint32 count = 2;
*aCount = count;
nsIID **array;
*aArray = array = static_cast<nsIID**>(nsMemory::Alloc(count * sizeof(nsIID*)));
if (!array)
return NS_ERROR_OUT_OF_MEMORY;
PRUint32 index = 0;
nsIID* clone;
#define PUSH_IID(id) \
clone = static_cast<nsIID *>(nsMemory::Clone(&NS_GET_IID( id ), \
sizeof(nsIID))); \
if (!clone) \
goto oom; \
array[index++] = clone;
PUSH_IID(nsIXPCComponents_ID)
PUSH_IID(nsIXPCScriptable)
#undef PUSH_IID
return NS_OK;
oom:
while (index)
nsMemory::Free(array[--index]);
nsMemory::Free(array);
*aArray = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCComponents_ID::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
return NS_OK;
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
nsXPCComponents_ID::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
return NS_ERROR_NOT_AVAILABLE;
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
nsXPCComponents_ID::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents_ID";
*aClassDescription = (char*)nsMemory::Clone(classDescription, sizeof(classDescription));
return *aClassDescription ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
nsXPCComponents_ID::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
return NS_OK;
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
nsXPCComponents_ID::GetImplementationLanguage(PRUint32 *aImplementationLanguage)
{
*aImplementationLanguage = nsIProgrammingLanguage::CPLUSPLUS;
return NS_OK;
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
nsXPCComponents_ID::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
return NS_OK;
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
nsXPCComponents_ID::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
}
nsXPCComponents_ID::nsXPCComponents_ID()
{
}
nsXPCComponents_ID::~nsXPCComponents_ID()
{
// empty
}
NS_INTERFACE_MAP_BEGIN(nsXPCComponents_ID)
NS_INTERFACE_MAP_ENTRY(nsIXPCComponents_ID)
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCComponents_ID)
NS_INTERFACE_MAP_END_THREADSAFE
NS_IMPL_THREADSAFE_ADDREF(nsXPCComponents_ID)
NS_IMPL_THREADSAFE_RELEASE(nsXPCComponents_ID)
// The nsIXPCScriptable map declaration that will generate stubs for us...
#define XPC_MAP_CLASSNAME nsXPCComponents_ID
#define XPC_MAP_QUOTED_CLASSNAME "nsXPCComponents_ID"
#define XPC_MAP_WANT_CALL
#define XPC_MAP_WANT_CONSTRUCT
#define XPC_MAP_WANT_HASINSTANCE
#define XPC_MAP_FLAGS nsIXPCScriptable::ALLOW_PROP_MODS_DURING_RESOLVE
#include "xpc_map_end.h" /* This will #undef the above */
/* bool call (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in PRUint32 argc, in JSValPtr argv, in JSValPtr vp); */
NS_IMETHODIMP
nsXPCComponents_ID::Call(nsIXPConnectWrappedNative *wrapper, JSContext * cx, JSObject * obj, PRUint32 argc, jsval * argv, jsval * vp, bool *_retval)
{
return CallOrConstruct(wrapper, cx, obj, argc, argv, vp, _retval);
}
/* bool construct (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in PRUint32 argc, in JSValPtr argv, in JSValPtr vp); */
NS_IMETHODIMP
nsXPCComponents_ID::Construct(nsIXPConnectWrappedNative *wrapper, JSContext * cx, JSObject * obj, PRUint32 argc, jsval * argv, jsval * vp, bool *_retval)
{
return CallOrConstruct(wrapper, cx, obj, argc, argv, vp, _retval);
}
// static
nsresult
nsXPCComponents_ID::CallOrConstruct(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
PRUint32 argc, jsval * argv,
jsval * vp, bool *_retval)
{
// make sure we have at least one arg
if (!argc)
return ThrowAndFail(NS_ERROR_XPC_NOT_ENOUGH_ARGS, cx, _retval);
XPCCallContext ccx(JS_CALLER, cx);
if (!ccx.IsValid())
return ThrowAndFail(NS_ERROR_XPC_UNEXPECTED, cx, _retval);
XPCContext* xpcc = ccx.GetXPCContext();
// Do the security check if necessary
nsIXPCSecurityManager* sm =
xpcc->GetAppropriateSecurityManager(nsIXPCSecurityManager::HOOK_CREATE_INSTANCE);
if (sm && NS_FAILED(sm->CanCreateInstance(cx, nsJSID::GetCID()))) {
// the security manager vetoed. It should have set an exception.
*_retval = JS_FALSE;
return NS_OK;
}
// convert the first argument into a string and see if it looks like an id
JSString* jsstr;
JSAutoByteString bytes;
nsID id;
if (!(jsstr = JS_ValueToString(cx, argv[0])) ||
!bytes.encode(cx, jsstr) ||
!id.Parse(bytes.ptr())) {
return ThrowAndFail(NS_ERROR_XPC_BAD_ID_STRING, cx, _retval);
}
// make the new object and return it.
JSObject* newobj = xpc_NewIDObject(cx, obj, id);
if (vp)
*vp = OBJECT_TO_JSVAL(newobj);
return NS_OK;
}
/* bool hasInstance (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in jsval val, out bool bp); */
NS_IMETHODIMP
nsXPCComponents_ID::HasInstance(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
const jsval &val, bool *bp, bool *_retval)
{
if (bp)
*bp = JSValIsInterfaceOfType(cx, val, NS_GET_IID(nsIJSID));
return NS_OK;
}
/***************************************************************************/
// JavaScript Constructor for nsIXPCException objects (Components.Exception)
class nsXPCComponents_Exception :
public nsIXPCComponents_Exception,
public nsIXPCScriptable,
public nsIClassInfo
{
public:
// all the interface method declarations...
NS_DECL_ISUPPORTS
NS_DECL_NSIXPCCOMPONENTS_EXCEPTION
NS_DECL_NSIXPCSCRIPTABLE
NS_DECL_NSICLASSINFO
public:
nsXPCComponents_Exception();
virtual ~nsXPCComponents_Exception();
private:
static nsresult CallOrConstruct(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
PRUint32 argc, jsval * argv,
jsval * vp, bool *_retval);
};
/***************************************************************************/
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
nsXPCComponents_Exception::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
const PRUint32 count = 2;
*aCount = count;
nsIID **array;
*aArray = array = static_cast<nsIID**>(nsMemory::Alloc(count * sizeof(nsIID*)));
if (!array)
return NS_ERROR_OUT_OF_MEMORY;
PRUint32 index = 0;
nsIID* clone;
#define PUSH_IID(id) \
clone = static_cast<nsIID *>(nsMemory::Clone(&NS_GET_IID( id ), \
sizeof(nsIID))); \
if (!clone) \
goto oom; \
array[index++] = clone;
PUSH_IID(nsIXPCComponents_Exception)
PUSH_IID(nsIXPCScriptable)
#undef PUSH_IID
return NS_OK;
oom:
while (index)
nsMemory::Free(array[--index]);
nsMemory::Free(array);
*aArray = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCComponents_Exception::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
return NS_OK;
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
nsXPCComponents_Exception::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
return NS_ERROR_NOT_AVAILABLE;
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
nsXPCComponents_Exception::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents_Exception";
*aClassDescription = (char*)nsMemory::Clone(classDescription, sizeof(classDescription));
return *aClassDescription ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
nsXPCComponents_Exception::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
return NS_OK;
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
nsXPCComponents_Exception::GetImplementationLanguage(PRUint32 *aImplementationLanguage)
{
*aImplementationLanguage = nsIProgrammingLanguage::CPLUSPLUS;
return NS_OK;
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
nsXPCComponents_Exception::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
return NS_OK;
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
nsXPCComponents_Exception::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
}
nsXPCComponents_Exception::nsXPCComponents_Exception()
{
}
nsXPCComponents_Exception::~nsXPCComponents_Exception()
{
// empty
}
NS_INTERFACE_MAP_BEGIN(nsXPCComponents_Exception)
NS_INTERFACE_MAP_ENTRY(nsIXPCComponents_Exception)
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCComponents_Exception)
NS_INTERFACE_MAP_END_THREADSAFE
NS_IMPL_THREADSAFE_ADDREF(nsXPCComponents_Exception)
NS_IMPL_THREADSAFE_RELEASE(nsXPCComponents_Exception)
// The nsIXPCScriptable map declaration that will generate stubs for us...
#define XPC_MAP_CLASSNAME nsXPCComponents_Exception
#define XPC_MAP_QUOTED_CLASSNAME "nsXPCComponents_Exception"
#define XPC_MAP_WANT_CALL
#define XPC_MAP_WANT_CONSTRUCT
#define XPC_MAP_WANT_HASINSTANCE
#define XPC_MAP_FLAGS nsIXPCScriptable::ALLOW_PROP_MODS_DURING_RESOLVE
#include "xpc_map_end.h" /* This will #undef the above */
/* bool call (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in PRUint32 argc, in JSValPtr argv, in JSValPtr vp); */
NS_IMETHODIMP
nsXPCComponents_Exception::Call(nsIXPConnectWrappedNative *wrapper, JSContext * cx, JSObject * obj, PRUint32 argc, jsval * argv, jsval * vp, bool *_retval)
{
return CallOrConstruct(wrapper, cx, obj, argc, argv, vp, _retval);
}
/* bool construct (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in PRUint32 argc, in JSValPtr argv, in JSValPtr vp); */
NS_IMETHODIMP
nsXPCComponents_Exception::Construct(nsIXPConnectWrappedNative *wrapper, JSContext * cx, JSObject * obj, PRUint32 argc, jsval * argv, jsval * vp, bool *_retval)
{
return CallOrConstruct(wrapper, cx, obj, argc, argv, vp, _retval);
}
// static
nsresult
nsXPCComponents_Exception::CallOrConstruct(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
PRUint32 argc, jsval * argv,
jsval * vp, bool *_retval)
{
XPCCallContext ccx(JS_CALLER, cx);
if (!ccx.IsValid())
return ThrowAndFail(NS_ERROR_XPC_UNEXPECTED, cx, _retval);
nsXPConnect* xpc = ccx.GetXPConnect();
XPCContext* xpcc = ccx.GetXPCContext();
// Do the security check if necessary
nsIXPCSecurityManager* sm =
xpcc->GetAppropriateSecurityManager(nsIXPCSecurityManager::HOOK_CREATE_INSTANCE);
if (sm && NS_FAILED(sm->CanCreateInstance(cx, nsXPCException::GetCID()))) {
// the security manager vetoed. It should have set an exception.
*_retval = JS_FALSE;
return NS_OK;
}
// initialization params for the exception object we will create
const char* eMsg = "exception";
JSAutoByteString eMsgBytes;
nsresult eResult = NS_ERROR_FAILURE;
nsCOMPtr<nsIStackFrame> eStack;
nsCOMPtr<nsISupports> eData;
// all params are optional - grab any passed in
switch (argc) {
default: // more than 4 - ignore extra
// ...fall through...
case 4: // argv[3] is object for eData
if (JSVAL_IS_NULL(argv[3])) {
// do nothing, leave eData as null
} else {
if (JSVAL_IS_PRIMITIVE(argv[3]) ||
NS_FAILED(xpc->WrapJS(cx, JSVAL_TO_OBJECT(argv[3]),
NS_GET_IID(nsISupports),
(void**)getter_AddRefs(eData))))
return ThrowAndFail(NS_ERROR_XPC_BAD_CONVERT_JS, cx, _retval);
}
// ...fall through...
case 3: // argv[2] is object for eStack
if (JSVAL_IS_NULL(argv[2])) {
// do nothing, leave eStack as null
} else {
if (JSVAL_IS_PRIMITIVE(argv[2]) ||
NS_FAILED(xpc->WrapJS(cx, JSVAL_TO_OBJECT(argv[2]),
NS_GET_IID(nsIStackFrame),
(void**)getter_AddRefs(eStack))))
return ThrowAndFail(NS_ERROR_XPC_BAD_CONVERT_JS, cx, _retval);
}
// fall through...
case 2: // argv[1] is nsresult for eResult
if (!JS_ValueToECMAInt32(cx, argv[1], (int32*) &eResult))
return ThrowAndFail(NS_ERROR_XPC_BAD_CONVERT_JS, cx, _retval);
// ...fall through...
case 1: // argv[0] is string for eMsg
{
JSString* str = JS_ValueToString(cx, argv[0]);
if (!str || !(eMsg = eMsgBytes.encode(cx, str)))
return ThrowAndFail(NS_ERROR_XPC_BAD_CONVERT_JS, cx, _retval);
}
// ...fall through...
case 0: // this case required so that 'default' does not include zero.
; // -- do nothing --
}
nsCOMPtr<nsIException> e;
nsXPCException::NewException(eMsg, eResult, eStack, eData, getter_AddRefs(e));
if (!e)
return ThrowAndFail(NS_ERROR_XPC_UNEXPECTED, cx, _retval);
nsCOMPtr<nsIXPConnectJSObjectHolder> holder;
JSObject* newObj = nsnull;
if (NS_FAILED(xpc->WrapNative(cx, obj, e, NS_GET_IID(nsIXPCException),
getter_AddRefs(holder))) || !holder ||
NS_FAILED(holder->GetJSObject(&newObj)) || !newObj) {
return ThrowAndFail(NS_ERROR_XPC_CANT_CREATE_WN, cx, _retval);
}
if (vp)
*vp = OBJECT_TO_JSVAL(newObj);
return NS_OK;
}
/* bool hasInstance (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in jsval val, out bool bp); */
NS_IMETHODIMP
nsXPCComponents_Exception::HasInstance(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
const jsval &val, bool *bp,
bool *_retval)
{
if (bp)
*bp = JSValIsInterfaceOfType(cx, val, NS_GET_IID(nsIException));
return NS_OK;
}
/***************************************************************************/
// This class is for the thing returned by "new Component.Constructor".
// XXXjband we use this CID for security check, but security system can't see
// it since it has no registed factory. Security really kicks in when we try
// to build a wrapper around an instance.
// {B4A95150-E25A-11d3-8F61-0010A4E73D9A}
#define NS_XPCCONSTRUCTOR_CID \
{ 0xb4a95150, 0xe25a, 0x11d3, \
{ 0x8f, 0x61, 0x0, 0x10, 0xa4, 0xe7, 0x3d, 0x9a } }
class nsXPCConstructor :
public nsIXPCConstructor,
public nsIXPCScriptable,
public nsIClassInfo
{
public:
NS_DEFINE_STATIC_CID_ACCESSOR(NS_XPCCONSTRUCTOR_CID)
public:
// all the interface method declarations...
NS_DECL_ISUPPORTS
NS_DECL_NSIXPCCONSTRUCTOR
NS_DECL_NSIXPCSCRIPTABLE
NS_DECL_NSICLASSINFO
public:
nsXPCConstructor(); // not implemented
nsXPCConstructor(nsIJSCID* aClassID,
nsIJSIID* aInterfaceID,
const char* aInitializer);
virtual ~nsXPCConstructor();
private:
nsresult CallOrConstruct(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
PRUint32 argc, jsval * argv,
jsval * vp, bool *_retval);
private:
nsIJSCID* mClassID;
nsIJSIID* mInterfaceID;
char* mInitializer;
};
/***************************************************************************/
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
nsXPCConstructor::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
const PRUint32 count = 2;
*aCount = count;
nsIID **array;
*aArray = array = static_cast<nsIID**>(nsMemory::Alloc(count * sizeof(nsIID*)));
if (!array)
return NS_ERROR_OUT_OF_MEMORY;
PRUint32 index = 0;
nsIID* clone;
#define PUSH_IID(id) \
clone = static_cast<nsIID *>(nsMemory::Clone(&NS_GET_IID( id ), \
sizeof(nsIID))); \
if (!clone) \
goto oom; \
array[index++] = clone;
PUSH_IID(nsIXPCConstructor)
PUSH_IID(nsIXPCScriptable)
#undef PUSH_IID
return NS_OK;
oom:
while (index)
nsMemory::Free(array[--index]);
nsMemory::Free(array);
*aArray = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCConstructor::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
return NS_OK;
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
nsXPCConstructor::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
return NS_ERROR_NOT_AVAILABLE;
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
nsXPCConstructor::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCConstructor";
*aClassDescription = (char*)nsMemory::Clone(classDescription, sizeof(classDescription));
return *aClassDescription ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
nsXPCConstructor::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
return NS_OK;
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
nsXPCConstructor::GetImplementationLanguage(PRUint32 *aImplementationLanguage)
{
*aImplementationLanguage = nsIProgrammingLanguage::CPLUSPLUS;
return NS_OK;
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
nsXPCConstructor::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
return NS_OK;
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
nsXPCConstructor::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
}
nsXPCConstructor::nsXPCConstructor(nsIJSCID* aClassID,
nsIJSIID* aInterfaceID,
const char* aInitializer)
{
NS_IF_ADDREF(mClassID = aClassID);
NS_IF_ADDREF(mInterfaceID = aInterfaceID);
mInitializer = aInitializer ?
(char*) nsMemory::Clone(aInitializer, strlen(aInitializer)+1) :
nsnull;
}
nsXPCConstructor::~nsXPCConstructor()
{
NS_IF_RELEASE(mClassID);
NS_IF_RELEASE(mInterfaceID);
if (mInitializer)
nsMemory::Free(mInitializer);
}
/* readonly attribute nsIJSCID classID; */
NS_IMETHODIMP
nsXPCConstructor::GetClassID(nsIJSCID * *aClassID)
{
NS_IF_ADDREF(*aClassID = mClassID);
return NS_OK;
}
/* readonly attribute nsIJSIID interfaceID; */
NS_IMETHODIMP
nsXPCConstructor::GetInterfaceID(nsIJSIID * *aInterfaceID)
{
NS_IF_ADDREF(*aInterfaceID = mInterfaceID);
return NS_OK;
}
/* readonly attribute string initializer; */
NS_IMETHODIMP
nsXPCConstructor::GetInitializer(char * *aInitializer)
{
XPC_STRING_GETTER_BODY(aInitializer, mInitializer);
}
NS_INTERFACE_MAP_BEGIN(nsXPCConstructor)
NS_INTERFACE_MAP_ENTRY(nsIXPCConstructor)
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCConstructor)
NS_INTERFACE_MAP_END_THREADSAFE
NS_IMPL_THREADSAFE_ADDREF(nsXPCConstructor)
NS_IMPL_THREADSAFE_RELEASE(nsXPCConstructor)
// The nsIXPCScriptable map declaration that will generate stubs for us...
#define XPC_MAP_CLASSNAME nsXPCConstructor
#define XPC_MAP_QUOTED_CLASSNAME "nsXPCConstructor"
#define XPC_MAP_WANT_CALL
#define XPC_MAP_WANT_CONSTRUCT
#define XPC_MAP_FLAGS 0
#include "xpc_map_end.h" /* This will #undef the above */
/* bool call (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in PRUint32 argc, in JSValPtr argv, in JSValPtr vp); */
NS_IMETHODIMP
nsXPCConstructor::Call(nsIXPConnectWrappedNative *wrapper, JSContext * cx, JSObject * obj, PRUint32 argc, jsval * argv, jsval * vp, bool *_retval)
{
return CallOrConstruct(wrapper, cx, obj, argc, argv, vp, _retval);
}
/* bool construct (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in PRUint32 argc, in JSValPtr argv, in JSValPtr vp); */
NS_IMETHODIMP
nsXPCConstructor::Construct(nsIXPConnectWrappedNative *wrapper, JSContext * cx, JSObject * obj, PRUint32 argc, jsval * argv, jsval * vp, bool *_retval)
{
return CallOrConstruct(wrapper, cx, obj, argc, argv, vp, _retval);
}
// static
nsresult
nsXPCConstructor::CallOrConstruct(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
PRUint32 argc, jsval * argv,
jsval * vp, bool *_retval)
{
XPCCallContext ccx(JS_CALLER, cx);
if (!ccx.IsValid())
return ThrowAndFail(NS_ERROR_XPC_UNEXPECTED, cx, _retval);
nsXPConnect* xpc = ccx.GetXPConnect();
// security check not required because we are going to call through the
// code which is reflected into JS which will do that for us later.
nsCOMPtr<nsIXPConnectJSObjectHolder> cidHolder;
nsCOMPtr<nsIXPConnectJSObjectHolder> iidHolder;
JSObject* cidObj;
JSObject* iidObj;
if (NS_FAILED(xpc->WrapNative(cx, obj, mClassID, NS_GET_IID(nsIJSCID),
getter_AddRefs(cidHolder))) || !cidHolder ||
NS_FAILED(cidHolder->GetJSObject(&cidObj)) || !cidObj ||
NS_FAILED(xpc->WrapNative(cx, obj, mInterfaceID, NS_GET_IID(nsIJSIID),
getter_AddRefs(iidHolder))) || !iidHolder ||
NS_FAILED(iidHolder->GetJSObject(&iidObj)) || !iidObj) {
return ThrowAndFail(NS_ERROR_XPC_CANT_CREATE_WN, cx, _retval);
}
jsval ctorArgs[1] = {OBJECT_TO_JSVAL(iidObj)};
jsval val;
if (!JS_CallFunctionName(cx, cidObj, "createInstance", 1, ctorArgs, &val) ||
JSVAL_IS_PRIMITIVE(val)) {
// createInstance will have thrown an exception
*_retval = JS_FALSE;
return NS_OK;
}
// root the result
if (vp)
*vp = val;
// call initializer method if supplied
if (mInitializer) {
JSObject* newObj = JSVAL_TO_OBJECT(val);
jsval fun;
jsval ignored;
// first check existence of function property for better error reporting
if (!JS_GetProperty(cx, newObj, mInitializer, &fun) ||
JSVAL_IS_PRIMITIVE(fun)) {
return ThrowAndFail(NS_ERROR_XPC_BAD_INITIALIZER_NAME, cx, _retval);
}
if (!JS_CallFunctionValue(cx, newObj, fun, argc, argv, &ignored)) {
// function should have thrown an exception
*_retval = JS_FALSE;
return NS_OK;
}
}
return NS_OK;
}
/*******************************************************/
// JavaScript Constructor for nsIXPCConstructor objects (Components.Constructor)
class nsXPCComponents_Constructor :
public nsIXPCComponents_Constructor,
public nsIXPCScriptable,
public nsIClassInfo
{
public:
// all the interface method declarations...
NS_DECL_ISUPPORTS
NS_DECL_NSIXPCCOMPONENTS_CONSTRUCTOR
NS_DECL_NSIXPCSCRIPTABLE
NS_DECL_NSICLASSINFO
public:
nsXPCComponents_Constructor();
virtual ~nsXPCComponents_Constructor();
private:
static nsresult CallOrConstruct(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
PRUint32 argc, jsval * argv,
jsval * vp, bool *_retval);
};
/***************************************************************************/
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
nsXPCComponents_Constructor::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
const PRUint32 count = 2;
*aCount = count;
nsIID **array;
*aArray = array = static_cast<nsIID**>(nsMemory::Alloc(count * sizeof(nsIID*)));
if (!array)
return NS_ERROR_OUT_OF_MEMORY;
PRUint32 index = 0;
nsIID* clone;
#define PUSH_IID(id) \
clone = static_cast<nsIID *>(nsMemory::Clone(&NS_GET_IID( id ), \
sizeof(nsIID))); \
if (!clone) \
goto oom; \
array[index++] = clone;
PUSH_IID(nsIXPCComponents_Constructor)
PUSH_IID(nsIXPCScriptable)
#undef PUSH_IID
return NS_OK;
oom:
while (index)
nsMemory::Free(array[--index]);
nsMemory::Free(array);
*aArray = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCComponents_Constructor::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
return NS_OK;
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
nsXPCComponents_Constructor::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
return NS_ERROR_NOT_AVAILABLE;
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
nsXPCComponents_Constructor::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents_Constructor";
*aClassDescription = (char*)nsMemory::Clone(classDescription, sizeof(classDescription));
return *aClassDescription ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
nsXPCComponents_Constructor::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
return NS_OK;
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
nsXPCComponents_Constructor::GetImplementationLanguage(PRUint32 *aImplementationLanguage)
{
*aImplementationLanguage = nsIProgrammingLanguage::CPLUSPLUS;
return NS_OK;
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
nsXPCComponents_Constructor::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
return NS_OK;
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
nsXPCComponents_Constructor::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
}
nsXPCComponents_Constructor::nsXPCComponents_Constructor()
{
}
nsXPCComponents_Constructor::~nsXPCComponents_Constructor()
{
// empty
}
NS_INTERFACE_MAP_BEGIN(nsXPCComponents_Constructor)
NS_INTERFACE_MAP_ENTRY(nsIXPCComponents_Constructor)
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCComponents_Constructor)
NS_INTERFACE_MAP_END_THREADSAFE
NS_IMPL_THREADSAFE_ADDREF(nsXPCComponents_Constructor)
NS_IMPL_THREADSAFE_RELEASE(nsXPCComponents_Constructor)
// The nsIXPCScriptable map declaration that will generate stubs for us...
#define XPC_MAP_CLASSNAME nsXPCComponents_Constructor
#define XPC_MAP_QUOTED_CLASSNAME "nsXPCComponents_Constructor"
#define XPC_MAP_WANT_CALL
#define XPC_MAP_WANT_CONSTRUCT
#define XPC_MAP_WANT_HASINSTANCE
#define XPC_MAP_FLAGS nsIXPCScriptable::ALLOW_PROP_MODS_DURING_RESOLVE
#include "xpc_map_end.h" /* This will #undef the above */
/* bool call (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in PRUint32 argc, in JSValPtr argv, in JSValPtr vp); */
NS_IMETHODIMP
nsXPCComponents_Constructor::Call(nsIXPConnectWrappedNative *wrapper, JSContext * cx, JSObject * obj, PRUint32 argc, jsval * argv, jsval * vp, bool *_retval)
{
return CallOrConstruct(wrapper, cx, obj, argc, argv, vp, _retval);
}
/* bool construct (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in PRUint32 argc, in JSValPtr argv, in JSValPtr vp); */
NS_IMETHODIMP
nsXPCComponents_Constructor::Construct(nsIXPConnectWrappedNative *wrapper, JSContext * cx, JSObject * obj, PRUint32 argc, jsval * argv, jsval * vp, bool *_retval)
{
return CallOrConstruct(wrapper, cx, obj, argc, argv, vp, _retval);
}
// static
nsresult
nsXPCComponents_Constructor::CallOrConstruct(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
PRUint32 argc, jsval * argv,
jsval * vp, bool *_retval)
{
// make sure we have at least one arg
if (!argc)
return ThrowAndFail(NS_ERROR_XPC_NOT_ENOUGH_ARGS, cx, _retval);
// get the various other object pointers we need
XPCCallContext ccx(JS_CALLER, cx);
if (!ccx.IsValid())
return ThrowAndFail(NS_ERROR_XPC_UNEXPECTED, cx, _retval);
nsXPConnect* xpc = ccx.GetXPConnect();
XPCContext* xpcc = ccx.GetXPCContext();
XPCWrappedNativeScope* scope =
XPCWrappedNativeScope::FindInJSObjectScope(ccx, obj);
nsXPCComponents* comp;
if (!xpc || !xpcc || !scope || !(comp = scope->GetComponents()))
return ThrowAndFail(NS_ERROR_XPC_UNEXPECTED, cx, _retval);
// Do the security check if necessary
nsIXPCSecurityManager* sm =
xpcc->GetAppropriateSecurityManager(nsIXPCSecurityManager::HOOK_CREATE_INSTANCE);
if (sm && NS_FAILED(sm->CanCreateInstance(cx, nsXPCConstructor::GetCID()))) {
// the security manager vetoed. It should have set an exception.
*_retval = JS_FALSE;
return NS_OK;
}
// initialization params for the Constructor object we will create
nsCOMPtr<nsIJSCID> cClassID;
nsCOMPtr<nsIJSIID> cInterfaceID;
const char* cInitializer = nsnull;
JSAutoByteString cInitializerBytes;
if (argc >= 3) {
// argv[2] is an initializer function or property name
JSString* str = JS_ValueToString(cx, argv[2]);
if (!str || !(cInitializer = cInitializerBytes.encode(cx, str)))
return ThrowAndFail(NS_ERROR_XPC_BAD_CONVERT_JS, cx, _retval);
}
if (argc >= 2) {
// argv[1] is an iid name string
// XXXjband support passing "Components.interfaces.foo"?
nsCOMPtr<nsIXPCComponents_Interfaces> ifaces;
nsCOMPtr<nsIXPConnectJSObjectHolder> holder;
JSObject* ifacesObj = nsnull;
// we do the lookup by asking the Components.interfaces object
// for the property with this name - i.e. we let its caching of these
// nsIJSIID objects work for us.
if (NS_FAILED(comp->GetInterfaces(getter_AddRefs(ifaces))) ||
NS_FAILED(xpc->WrapNative(cx, obj, ifaces,
NS_GET_IID(nsIXPCComponents_Interfaces),
getter_AddRefs(holder))) || !holder ||
NS_FAILED(holder->GetJSObject(&ifacesObj)) || !ifacesObj) {
return ThrowAndFail(NS_ERROR_XPC_UNEXPECTED, cx, _retval);
}
JSString* str = JS_ValueToString(cx, argv[1]);
jsid id;
if (!str || !JS_ValueToId(cx, STRING_TO_JSVAL(str), &id))
return ThrowAndFail(NS_ERROR_XPC_BAD_CONVERT_JS, cx, _retval);
jsval val;
if (!JS_GetPropertyById(cx, ifacesObj, id, &val) || JSVAL_IS_PRIMITIVE(val))
return ThrowAndFail(NS_ERROR_XPC_BAD_IID, cx, _retval);
nsCOMPtr<nsIXPConnectWrappedNative> wn;
if (NS_FAILED(xpc->GetWrappedNativeOfJSObject(cx, JSVAL_TO_OBJECT(val),
getter_AddRefs(wn))) || !wn ||
!(cInterfaceID = do_QueryWrappedNative(wn))) {
return ThrowAndFail(NS_ERROR_XPC_UNEXPECTED, cx, _retval);
}
} else {
nsCOMPtr<nsIInterfaceInfo> info;
xpc->GetInfoForIID(&NS_GET_IID(nsISupports), getter_AddRefs(info));
if (info) {
cInterfaceID =
dont_AddRef(static_cast<nsIJSIID*>(nsJSIID::NewID(info)));
}
if (!cInterfaceID)
return ThrowAndFail(NS_ERROR_XPC_UNEXPECTED, cx, _retval);
}
// a new scope to avoid warnings about shadowed names
{
// argv[0] is a contractid name string
// XXXjband support passing "Components.classes.foo"?
// we do the lookup by asking the Components.classes object
// for the property with this name - i.e. we let its caching of these
// nsIJSCID objects work for us.
nsCOMPtr<nsIXPCComponents_Classes> classes;
nsCOMPtr<nsIXPConnectJSObjectHolder> holder;
JSObject* classesObj = nsnull;
if (NS_FAILED(comp->GetClasses(getter_AddRefs(classes))) ||
NS_FAILED(xpc->WrapNative(cx, obj, classes,
NS_GET_IID(nsIXPCComponents_Classes),
getter_AddRefs(holder))) || !holder ||
NS_FAILED(holder->GetJSObject(&classesObj)) || !classesObj) {
return ThrowAndFail(NS_ERROR_XPC_UNEXPECTED, cx, _retval);
}
JSString* str = JS_ValueToString(cx, argv[0]);
jsid id;
if (!str || !JS_ValueToId(cx, STRING_TO_JSVAL(str), &id))
return ThrowAndFail(NS_ERROR_XPC_BAD_CONVERT_JS, cx, _retval);
jsval val;
if (!JS_GetPropertyById(cx, classesObj, id, &val) || JSVAL_IS_PRIMITIVE(val))
return ThrowAndFail(NS_ERROR_XPC_BAD_CID, cx, _retval);
nsCOMPtr<nsIXPConnectWrappedNative> wn;
if (NS_FAILED(xpc->GetWrappedNativeOfJSObject(cx, JSVAL_TO_OBJECT(val),
getter_AddRefs(wn))) || !wn ||
!(cClassID = do_QueryWrappedNative(wn))) {
return ThrowAndFail(NS_ERROR_XPC_UNEXPECTED, cx, _retval);
}
}
nsCOMPtr<nsIXPCConstructor> ctor =
static_cast<nsIXPCConstructor*>
(new nsXPCConstructor(cClassID, cInterfaceID, cInitializer));
if (!ctor)
return ThrowAndFail(NS_ERROR_XPC_UNEXPECTED, cx, _retval);
nsCOMPtr<nsIXPConnectJSObjectHolder> holder2;
JSObject* newObj = nsnull;
if (NS_FAILED(xpc->WrapNative(cx, obj, ctor, NS_GET_IID(nsIXPCConstructor),
getter_AddRefs(holder2))) || !holder2 ||
NS_FAILED(holder2->GetJSObject(&newObj)) || !newObj) {
return ThrowAndFail(NS_ERROR_XPC_CANT_CREATE_WN, cx, _retval);
}
if (vp)
*vp = OBJECT_TO_JSVAL(newObj);
return NS_OK;
}
/* bool hasInstance (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in jsval val, out bool bp); */
NS_IMETHODIMP
nsXPCComponents_Constructor::HasInstance(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
const jsval &val, bool *bp,
bool *_retval)
{
if (bp)
*bp = JSValIsInterfaceOfType(cx, val, NS_GET_IID(nsIXPCConstructor));
return NS_OK;
}
/***************************************************************************/
// Javascript constructor for the sandbox object
class nsXPCComponents_utils_Sandbox : public nsIXPCComponents_utils_Sandbox,
public nsIXPCScriptable
{
public:
// Aren't macros nice?
NS_DECL_ISUPPORTS
NS_DECL_NSIXPCCOMPONENTS_UTILS_SANDBOX
NS_DECL_NSIXPCSCRIPTABLE
public:
nsXPCComponents_utils_Sandbox();
virtual ~nsXPCComponents_utils_Sandbox();
private:
static nsresult CallOrConstruct(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
PRUint32 argc, jsval * argv,
jsval * vp, bool *_retval);
};
class nsXPCComponents_Utils :
public nsIXPCComponents_Utils,
public nsIXPCScriptable,
public nsISecurityCheckedComponent
{
public:
// all the interface method declarations...
NS_DECL_ISUPPORTS
NS_DECL_NSIXPCSCRIPTABLE
NS_DECL_NSISECURITYCHECKEDCOMPONENT
NS_DECL_NSIXPCCOMPONENTS_UTILS
public:
nsXPCComponents_Utils() { }
virtual ~nsXPCComponents_Utils() { }
private:
nsCOMPtr<nsIXPCComponents_utils_Sandbox> mSandbox;
};
NS_INTERFACE_MAP_BEGIN(nsXPCComponents_Utils)
NS_INTERFACE_MAP_ENTRY(nsIXPCComponents_Utils)
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
NS_INTERFACE_MAP_ENTRY(nsISecurityCheckedComponent)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCComponents_Utils)
NS_INTERFACE_MAP_END_THREADSAFE
NS_IMPL_THREADSAFE_ADDREF(nsXPCComponents_Utils)
NS_IMPL_THREADSAFE_RELEASE(nsXPCComponents_Utils)
// The nsIXPCScriptable map declaration that will generate stubs for us...
#define XPC_MAP_CLASSNAME nsXPCComponents_Utils
#define XPC_MAP_QUOTED_CLASSNAME "nsXPCComponents_Utils"
#define XPC_MAP_FLAGS nsIXPCScriptable::ALLOW_PROP_MODS_DURING_RESOLVE
#include "xpc_map_end.h" /* This will #undef the above */
NS_IMETHODIMP
nsXPCComponents_Utils::GetSandbox(nsIXPCComponents_utils_Sandbox **aSandbox)
{
NS_ENSURE_ARG_POINTER(aSandbox);
if (!mSandbox && !(mSandbox = new nsXPCComponents_utils_Sandbox())) {
*aSandbox = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(*aSandbox = mSandbox);
return NS_OK;
}
/* void lookupMethod (); */
NS_IMETHODIMP
nsXPCComponents_Utils::LookupMethod()
{
nsresult rv;
nsCOMPtr<nsIXPConnect> xpc(do_GetService(nsIXPConnect::GetCID(), &rv));
if (NS_FAILED(rv))
return NS_ERROR_FAILURE;
// get the xpconnect native call context
nsAXPCNativeCallContext *cc = nsnull;
xpc->GetCurrentNativeCallContext(&cc);
if (!cc)
return NS_ERROR_FAILURE;
// Check disabled until deprecated Components.lookupMethod removed.
#undef CHECK_FOR_INDIRECT_CALL
#ifdef CHECK_FOR_INDIRECT_CALL
// verify that we are being called from JS (i.e. the current call is
// to this object - though we don't verify that it is to this exact method)
nsCOMPtr<nsISupports> callee;
cc->GetCallee(getter_AddRefs(callee));
if (!callee || callee.get() !=
static_cast<const nsISupports*>
(static_cast<const nsIXPCComponents_Utils*>(this)))
return NS_ERROR_FAILURE;
#endif
// Get JSContext of current call
JSContext* cx;
rv = cc->GetJSContext(&cx);
if (NS_FAILED(rv) || !cx)
return NS_ERROR_FAILURE;
JSAutoRequest ar(cx);
// get place for return value
jsval *retval = nsnull;
rv = cc->GetRetValPtr(&retval);
if (NS_FAILED(rv) || !retval)
return NS_ERROR_FAILURE;
// get argc and argv and verify arg count
PRUint32 argc;
rv = cc->GetArgc(&argc);
if (NS_FAILED(rv))
return NS_ERROR_FAILURE;
if (argc < 2)
return NS_ERROR_XPC_NOT_ENOUGH_ARGS;
jsval* argv;
rv = cc->GetArgvPtr(&argv);
if (NS_FAILED(rv) || !argv)
return NS_ERROR_FAILURE;
// first param must be a JSObject
if (JSVAL_IS_PRIMITIVE(argv[0]))
return NS_ERROR_XPC_BAD_CONVERT_JS;
JSObject* obj = JSVAL_TO_OBJECT(argv[0]);
while (obj && !js::IsWrapper(obj) && !IS_WRAPPER_CLASS(js::GetObjectClass(obj)))
obj = JS_GetPrototype(cx, obj);
if (!obj)
return NS_ERROR_XPC_BAD_CONVERT_JS;
argv[0] = OBJECT_TO_JSVAL(obj);
rv = nsXPConnect::GetXPConnect()->GetJSObjectOfWrapper(cx, obj, &obj);
if (NS_FAILED(rv))
return rv;
obj = JS_ObjectToInnerObject(cx, obj);
if (!obj)
return NS_ERROR_XPC_BAD_CONVERT_JS;
// second param must be a string
if (!JSVAL_IS_STRING(argv[1]))
return NS_ERROR_XPC_BAD_CONVERT_JS;
// Make sure the name (argv[1]) that we use for looking up the
// method/property is atomized.
jsid name_id;
if (!JS_ValueToId(cx, argv[1], &name_id) ||
!JS_IdToValue(cx, name_id, &argv[1]))
return NS_ERROR_XPC_BAD_CONVERT_JS;
// this will do verification and the method lookup for us
// Note that if |obj| is an XPCNativeWrapper this will all still work.
// We'll hand back the same method that we'd hand back for the underlying
// XPCWrappedNative. This means no deep wrapping, unfortunately, but we
// can't keep track of both the underlying function and the
// XPCNativeWrapper at once in a single parent slot...
XPCCallContext inner_cc(JS_CALLER, cx, obj, nsnull, name_id);
// was our jsobject really a wrapped native at all?
XPCWrappedNative* wrapper = inner_cc.GetWrapper();
if (!wrapper || !wrapper->IsValid())
return NS_ERROR_XPC_BAD_CONVERT_JS;
// did we find a method/attribute by that name?
XPCNativeMember* member = inner_cc.GetMember();
if (!member || member->IsConstant())
return NS_ERROR_XPC_BAD_CONVERT_JS;
// it would a be a big surprise if there is a member without an interface :)
XPCNativeInterface* iface = inner_cc.GetInterface();
if (!iface)
return NS_ERROR_XPC_BAD_CONVERT_JS;
jsval funval;
JSFunction *oldfunction;
// get (and perhaps lazily create) the member's cloned function
if (!member->NewFunctionObject(inner_cc, iface,
JSVAL_TO_OBJECT(argv[0]),
&funval))
return NS_ERROR_XPC_BAD_CONVERT_JS;
oldfunction = JS_ValueToFunction(inner_cc, funval);
NS_ASSERTION(oldfunction, "Function is not a function");
// Stick the function in the return value. This roots it.
*retval = funval;
// Tell XPConnect that we returned the function through the call context.
cc->SetReturnValueWasSet(true);
return NS_OK;
}
/* void reportError (); */
NS_IMETHODIMP
nsXPCComponents_Utils::ReportError()
{
// This function shall never fail! Silently eat any failure conditions.
nsresult rv;
nsCOMPtr<nsIConsoleService> console(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
nsCOMPtr<nsIScriptError2> scripterr(do_CreateInstance(NS_SCRIPTERROR_CONTRACTID));
nsCOMPtr<nsIXPConnect> xpc(do_GetService(nsIXPConnect::GetCID()));
if (!scripterr || !console || !xpc)
return NS_OK;
// get the xpconnect native call context
nsAXPCNativeCallContext *cc = nsnull;
xpc->GetCurrentNativeCallContext(&cc);
if (!cc)
return NS_OK;
// Check disabled until deprecated Components.reportError removed.
#undef CHECK_FOR_INDIRECT_CALL
#ifdef CHECK_FOR_INDIRECT_CALL
// verify that we are being called from JS (i.e. the current call is
// to this object - though we don't verify that it is to this exact method)
nsCOMPtr<nsISupports> callee;
cc->GetCallee(getter_AddRefs(callee));
if (!callee || callee.get() !=
static_cast<const nsISupports*>
(static_cast<const nsIXPCComponents_Utils*>(this))) {
NS_ERROR("reportError() must only be called from JS!");
return NS_ERROR_FAILURE;
}
#endif
// Get JSContext of current call
JSContext* cx;
rv = cc->GetJSContext(&cx);
if (NS_FAILED(rv) || !cx)
return NS_OK;
JSAutoRequest ar(cx);
// get argc and argv and verify arg count
PRUint32 argc;
rv = cc->GetArgc(&argc);
if (NS_FAILED(rv))
return NS_OK;
if (argc < 1)
return NS_ERROR_XPC_NOT_ENOUGH_ARGS;
jsval* argv;
rv = cc->GetArgvPtr(&argv);
if (NS_FAILED(rv) || !argv)
return NS_OK;
const PRUint64 innerWindowID = nsJSUtils::GetCurrentlyRunningCodeInnerWindowID(cx);
JSErrorReport* err = JS_ErrorFromException(cx, argv[0]);
if (err) {
// It's a proper JS Error
nsAutoString fileUni;
CopyUTF8toUTF16(err->filename, fileUni);
PRUint32 column = err->uctokenptr - err->uclinebuf;
rv = scripterr->InitWithWindowID(reinterpret_cast<const PRUnichar*>
(err->ucmessage),
fileUni.get(),
reinterpret_cast<const PRUnichar*>
(err->uclinebuf),
err->lineno,
column,
err->flags,
"XPConnect JavaScript", innerWindowID);
if (NS_FAILED(rv))
return NS_OK;
nsCOMPtr<nsIScriptError> logError = do_QueryInterface(scripterr);
console->LogMessage(logError);
return NS_OK;
}
// It's not a JS Error object, so we synthesize as best we're able
JSString* msgstr = JS_ValueToString(cx, argv[0]);
if (msgstr) {
// Root the string during scripterr->Init
argv[0] = STRING_TO_JSVAL(msgstr);
nsCOMPtr<nsIStackFrame> frame;
nsXPConnect* xpc = nsXPConnect::GetXPConnect();
if (xpc)
xpc->GetCurrentJSStack(getter_AddRefs(frame));
nsXPIDLCString fileName;
PRInt32 lineNo = 0;
if (frame) {
frame->GetFilename(getter_Copies(fileName));
frame->GetLineNumber(&lineNo);
}
const jschar *msgchars = JS_GetStringCharsZ(cx, msgstr);
if (!msgchars)
return NS_OK;
rv = scripterr->InitWithWindowID(reinterpret_cast<const PRUnichar *>(msgchars),
NS_ConvertUTF8toUTF16(fileName).get(),
nsnull,
lineNo, 0, 0,
"XPConnect JavaScript", innerWindowID);
if (NS_SUCCEEDED(rv)) {
nsCOMPtr<nsIScriptError> logError = do_QueryInterface(scripterr);
console->LogMessage(logError);
}
}
return NS_OK;
}
#include "nsIScriptSecurityManager.h"
#include "nsIURI.h"
#include "nsNetUtil.h"
const char kScriptSecurityManagerContractID[] = NS_SCRIPTSECURITYMANAGER_CONTRACTID;
NS_IMPL_THREADSAFE_ISUPPORTS1(PrincipalHolder, nsIScriptObjectPrincipal)
nsIPrincipal *
PrincipalHolder::GetPrincipal()
{
return mHoldee;
}
static JSBool
SandboxDump(JSContext *cx, uintN argc, jsval *vp)
{
JSString *str;
if (!argc)
return JS_TRUE;
str = JS_ValueToString(cx, JS_ARGV(cx, vp)[0]);
if (!str)
return JS_FALSE;
size_t length;
const jschar *chars = JS_GetStringCharsZAndLength(cx, str, &length);
if (!chars)
return JS_FALSE;
nsDependentString wstr(chars, length);
char *cstr = ToNewUTF8String(wstr);
if (!cstr)
return JS_FALSE;
#if defined(XP_MACOSX)
// Be nice and convert all \r to \n.
char *c = cstr, *cEnd = cstr + strlen(cstr);
while (c < cEnd) {
if (*c == '\r')
*c = '\n';
c++;
}
#endif
fputs(cstr, stderr);
fflush(stderr);
NS_Free(cstr);
JS_SET_RVAL(cx, vp, JSVAL_TRUE);
return JS_TRUE;
}
static JSBool
SandboxDebug(JSContext *cx, uintN argc, jsval *vp)
{
#ifdef DEBUG
return SandboxDump(cx, argc, vp);
#else
return JS_TRUE;
#endif
}
static JSBool
SandboxImport(JSContext *cx, uintN argc, jsval *vp)
{
JSObject *thisobj = JS_THIS_OBJECT(cx, vp);
if (!thisobj)
return JS_FALSE;
jsval *argv = JS_ARGV(cx, vp);
if (argc < 1 || JSVAL_IS_PRIMITIVE(argv[0])) {
XPCThrower::Throw(NS_ERROR_INVALID_ARG, cx);
return JS_FALSE;
}
JSString *funname;
if (argc > 1) {
// Use the second parameter as the function name.
funname = JS_ValueToString(cx, argv[1]);
if (!funname)
return JS_FALSE;
argv[1] = STRING_TO_JSVAL(funname);
} else {
// NB: funobj must only be used to get the JSFunction out.
JSObject *funobj = JSVAL_TO_OBJECT(argv[0]);
if (js::IsProxy(funobj)) {
funobj = XPCWrapper::UnsafeUnwrapSecurityWrapper(funobj);
}
JSAutoEnterCompartment ac;
if (!ac.enter(cx, funobj)) {
return JS_FALSE;
}
JSFunction *fun = JS_ValueToFunction(cx, OBJECT_TO_JSVAL(funobj));
if (!fun) {
XPCThrower::Throw(NS_ERROR_INVALID_ARG, cx);
return JS_FALSE;
}
// Use the actual function name as the name.
funname = JS_GetFunctionId(fun);
if (!funname) {
XPCThrower::Throw(NS_ERROR_INVALID_ARG, cx);
return JS_FALSE;
}
}
jsid id;
if (!JS_ValueToId(cx, STRING_TO_JSVAL(funname), &id))
return JS_FALSE;
JS_SET_RVAL(cx, vp, JSVAL_VOID);
return JS_SetPropertyById(cx, thisobj, id, &argv[0]);
}
static JSBool
sandbox_enumerate(JSContext *cx, JSObject *obj)
{
return JS_EnumerateStandardClasses(cx, obj);
}
static JSBool
sandbox_resolve(JSContext *cx, JSObject *obj, jsid id)
{
JSBool resolved;
return JS_ResolveStandardClass(cx, obj, id, &resolved);
}
static void
sandbox_finalize(JSContext *cx, JSObject *obj)
{
nsIScriptObjectPrincipal *sop =
(nsIScriptObjectPrincipal *)xpc_GetJSPrivate(obj);
NS_IF_RELEASE(sop);
}
static JSBool
sandbox_convert(JSContext *cx, JSObject *obj, JSType type, jsval *vp)
{
if (type == JSTYPE_OBJECT) {
*vp = OBJECT_TO_JSVAL(obj);
return JS_TRUE;
}
return JS_ConvertStub(cx, obj, type, vp);
}
static JSClass SandboxClass = {
"Sandbox",
XPCONNECT_GLOBAL_FLAGS,
JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_StrictPropertyStub,
sandbox_enumerate, sandbox_resolve, sandbox_convert, sandbox_finalize,
NULL, NULL, NULL, NULL, NULL, NULL, TraceXPCGlobal
};
static JSFunctionSpec SandboxFunctions[] = {
{"dump", SandboxDump, 1,0},
{"debug", SandboxDebug, 1,0},
{"importFunction", SandboxImport, 1,0},
{nsnull,nsnull,0,0}
};
/***************************************************************************/
nsXPCComponents_utils_Sandbox::nsXPCComponents_utils_Sandbox()
{
}
nsXPCComponents_utils_Sandbox::~nsXPCComponents_utils_Sandbox()
{
}
NS_INTERFACE_MAP_BEGIN(nsXPCComponents_utils_Sandbox)
NS_INTERFACE_MAP_ENTRY(nsIXPCComponents_utils_Sandbox)
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCComponents_utils_Sandbox)
NS_INTERFACE_MAP_END_THREADSAFE
NS_IMPL_THREADSAFE_ADDREF(nsXPCComponents_utils_Sandbox)
NS_IMPL_THREADSAFE_RELEASE(nsXPCComponents_utils_Sandbox)
// We use the nsIXPScriptable macros to generate lots of stuff for us.
#define XPC_MAP_CLASSNAME nsXPCComponents_utils_Sandbox
#define XPC_MAP_QUOTED_CLASSNAME "nsXPCComponents_utils_Sandbox"
#define XPC_MAP_WANT_CALL
#define XPC_MAP_WANT_CONSTRUCT
#define XPC_MAP_FLAGS 0
#include "xpc_map_end.h" /* This #undef's the above. */
static bool
WrapForSandbox(JSContext *cx, bool wantXrays, jsval *vp)
{
return wantXrays
? JS_WrapValue(cx, vp)
: xpc::WrapperFactory::WaiveXrayAndWrap(cx, vp);
}
// Needed to distinguish multiple compartments with the same origin from each
// other. The only thing we need out of identity objects are unique addresses.
class Identity : public nsISupports
{
NS_DECL_ISUPPORTS
};
NS_IMPL_ISUPPORTS0(Identity)
nsresult
xpc_CreateSandboxObject(JSContext * cx, jsval * vp, nsISupports *prinOrSop, JSObject *proto,
bool wantXrays, const nsACString &sandboxName)
{
// Create the sandbox global object
nsresult rv;
nsCOMPtr<nsIXPConnect> xpc(do_GetService(nsIXPConnect::GetCID(), &rv));
if (NS_FAILED(rv))
return NS_ERROR_XPC_UNEXPECTED;
nsCOMPtr<nsIScriptObjectPrincipal> sop(do_QueryInterface(prinOrSop));
if (!sop) {
nsCOMPtr<nsIPrincipal> principal(do_QueryInterface(prinOrSop));
if (!principal) {
principal = do_CreateInstance("@mozilla.org/nullprincipal;1", &rv);
NS_ASSERTION(NS_FAILED(rv) || principal,
"Bad return from do_CreateInstance");
if (!principal || NS_FAILED(rv)) {
if (NS_SUCCEEDED(rv)) {
rv = NS_ERROR_FAILURE;
}
return rv;
}
}
sop = new PrincipalHolder(principal);
if (!sop)
return NS_ERROR_OUT_OF_MEMORY;
}
nsIPrincipal *principal = sop->GetPrincipal();
JSCompartment *compartment;
JSObject *sandbox;
nsRefPtr<Identity> identity = new Identity();
rv = xpc_CreateGlobalObject(cx, &SandboxClass, principal, identity,
wantXrays, &sandbox, &compartment);
NS_ENSURE_SUCCESS(rv, rv);
js::AutoObjectRooter tvr(cx, sandbox);
{
JSAutoEnterCompartment ac;
if (!ac.enter(cx, sandbox))
return NS_ERROR_XPC_UNEXPECTED;
if (proto) {
bool ok = JS_WrapObject(cx, &proto);
if (!ok)
return NS_ERROR_XPC_UNEXPECTED;
if (xpc::WrapperFactory::IsXrayWrapper(proto) && !wantXrays) {
jsval v = OBJECT_TO_JSVAL(proto);
if (!xpc::WrapperFactory::WaiveXrayAndWrap(cx, &v))
return NS_ERROR_FAILURE;
proto = JSVAL_TO_OBJECT(v);
}
ok = JS_SetPrototype(cx, sandbox, proto);
if (!ok)
return NS_ERROR_XPC_UNEXPECTED;
}
// Pass on ownership of sop to |sandbox|.
if (!JS_SetPrivate(cx, sandbox, sop.forget().get())) {
return NS_ERROR_XPC_UNEXPECTED;
}
rv = xpc->InitClasses(cx, sandbox);
if (NS_SUCCEEDED(rv) &&
!JS_DefineFunctions(cx, sandbox, SandboxFunctions)) {
rv = NS_ERROR_FAILURE;
}
if (NS_FAILED(rv))
return NS_ERROR_XPC_UNEXPECTED;
}
if (vp) {
*vp = OBJECT_TO_JSVAL(sandbox);
if (!WrapForSandbox(cx, wantXrays, vp)) {
return NS_ERROR_UNEXPECTED;
}
}
xpc::CompartmentPrivate *compartmentPrivate =
static_cast<xpc::CompartmentPrivate*>(JS_GetCompartmentPrivate(cx, compartment));
compartmentPrivate->location = sandboxName;
return NS_OK;
}
/* bool call(in nsIXPConnectWrappedNative wrapper,
in JSContextPtr cx,
in JSObjectPtr obj,
in PRUint32 argc,
in JSValPtr argv,
in JSValPtr vp);
*/
NS_IMETHODIMP
nsXPCComponents_utils_Sandbox::Call(nsIXPConnectWrappedNative *wrapper,
JSContext * cx,
JSObject * obj,
PRUint32 argc,
jsval * argv,
jsval * vp,
bool *_retval)
{
return CallOrConstruct(wrapper, cx, obj, argc, argv, vp, _retval);
}
/* bool construct(in nsIXPConnectWrappedNative wrapper,
in JSContextPtr cx,
in JSObjectPtr obj,
in PRUint32 argc,
in JSValPtr argv,
in JSValPtr vp);
*/
NS_IMETHODIMP
nsXPCComponents_utils_Sandbox::Construct(nsIXPConnectWrappedNative *wrapper,
JSContext * cx,
JSObject * obj,
PRUint32 argc,
jsval * argv,
jsval * vp,
bool *_retval)
{
return CallOrConstruct(wrapper, cx, obj, argc, argv, vp, _retval);
}
// static
nsresult
nsXPCComponents_utils_Sandbox::CallOrConstruct(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
PRUint32 argc, jsval * argv,
jsval * vp, bool *_retval)
{
if (argc < 1)
return ThrowAndFail(NS_ERROR_XPC_NOT_ENOUGH_ARGS, cx, _retval);
nsresult rv;
// Make sure to set up principals on the sandbox before initing classes
nsCOMPtr<nsIScriptObjectPrincipal> sop;
nsCOMPtr<nsIPrincipal> principal;
nsISupports *prinOrSop = nsnull;
if (JSVAL_IS_STRING(argv[0])) {
JSString *codebaseStr = JSVAL_TO_STRING(argv[0]);
size_t codebaseLength;
const jschar *codebaseChars = JS_GetStringCharsAndLength(cx, codebaseStr,
&codebaseLength);
if (!codebaseChars) {
return ThrowAndFail(NS_ERROR_FAILURE, cx, _retval);
}
nsAutoString codebase(codebaseChars, codebaseLength);
nsCOMPtr<nsIURI> uri;
rv = NS_NewURI(getter_AddRefs(uri), codebase);
if (NS_FAILED(rv)) {
return ThrowAndFail(rv, cx, _retval);
}
nsCOMPtr<nsIScriptSecurityManager> secman =
do_GetService(kScriptSecurityManagerContractID);
if (!secman ||
NS_FAILED(rv = secman->GetCodebasePrincipal(uri,
getter_AddRefs(principal))) ||
!principal) {
if (NS_SUCCEEDED(rv))
rv = NS_ERROR_FAILURE;
return ThrowAndFail(rv, cx, _retval);
}
prinOrSop = principal;
} else {
if (!JSVAL_IS_PRIMITIVE(argv[0])) {
nsCOMPtr<nsIXPConnect> xpc(do_GetService(nsIXPConnect::GetCID()));
if (!xpc)
return NS_ERROR_XPC_UNEXPECTED;
nsCOMPtr<nsIXPConnectWrappedNative> wrapper;
xpc->GetWrappedNativeOfJSObject(cx, JSVAL_TO_OBJECT(argv[0]),
getter_AddRefs(wrapper));
if (wrapper) {
sop = do_QueryWrappedNative(wrapper);
if (sop) {
prinOrSop = sop;
} else {
principal = do_QueryWrappedNative(wrapper);
prinOrSop = principal;
}
}
}
if (!prinOrSop)
return ThrowAndFail(NS_ERROR_INVALID_ARG, cx, _retval);
}
JSObject *proto = nsnull;
bool wantXrays = true;
nsCString sandboxName;
if (argc > 1) {
if (!JSVAL_IS_OBJECT(argv[1]))
return ThrowAndFail(NS_ERROR_INVALID_ARG, cx, _retval);
JSObject *optionsObject = JSVAL_TO_OBJECT(argv[1]);
jsval option;
JSBool found;
if (!JS_HasProperty(cx, optionsObject, "sandboxPrototype", &found))
return NS_ERROR_INVALID_ARG;
if (found) {
if (!JS_GetProperty(cx, optionsObject, "sandboxPrototype", &option) ||
!JSVAL_IS_OBJECT(option)) {
return ThrowAndFail(NS_ERROR_INVALID_ARG, cx, _retval);
}
proto = JSVAL_TO_OBJECT(option);
}
if (!JS_HasProperty(cx, optionsObject, "wantXrays", &found))
return NS_ERROR_INVALID_ARG;
if (found) {
if (!JS_GetProperty(cx, optionsObject, "wantXrays", &option) ||
!JSVAL_IS_BOOLEAN(option)) {
return ThrowAndFail(NS_ERROR_INVALID_ARG, cx, _retval);
}
wantXrays = JSVAL_TO_BOOLEAN(option);
}
if (!JS_HasProperty(cx, optionsObject, "sandboxName", &found))
return NS_ERROR_INVALID_ARG;
if (found) {
if (!JS_GetProperty(cx, optionsObject, "sandboxName", &option) ||
!JSVAL_IS_STRING(option)) {
return ThrowAndFail(NS_ERROR_INVALID_ARG, cx, _retval);
}
char *tmp = JS_EncodeString(cx, JSVAL_TO_STRING(option));
if (!tmp) {
return ThrowAndFail(NS_ERROR_INVALID_ARG, cx, _retval);
}
sandboxName.Adopt(tmp, strlen(tmp));
}
}
rv = xpc_CreateSandboxObject(cx, vp, prinOrSop, proto, wantXrays, sandboxName);
if (NS_FAILED(rv)) {
return ThrowAndFail(rv, cx, _retval);
}
*_retval = true;
return rv;
}
class ContextHolder : public nsISupports
{
public:
ContextHolder(JSContext *aOuterCx, JSObject *aSandbox);
virtual ~ContextHolder();
JSContext * GetJSContext()
{
return mJSContext;
}
NS_DECL_ISUPPORTS
private:
static JSBool ContextHolderOperationCallback(JSContext *cx);
JSContext* mJSContext;
JSContext* mOrigCx;
};
NS_IMPL_ISUPPORTS0(ContextHolder)
ContextHolder::ContextHolder(JSContext *aOuterCx, JSObject *aSandbox)
: mJSContext(JS_NewContext(JS_GetRuntime(aOuterCx), 1024)),
mOrigCx(aOuterCx)
{
if (mJSContext) {
JSAutoRequest ar(mJSContext);
JS_SetOptions(mJSContext,
JS_GetOptions(mJSContext) |
JSOPTION_DONT_REPORT_UNCAUGHT |
JSOPTION_PRIVATE_IS_NSISUPPORTS);
JS_SetGlobalObject(mJSContext, aSandbox);
JS_SetContextPrivate(mJSContext, this);
JS_SetOperationCallback(mJSContext, ContextHolderOperationCallback);
}
}
ContextHolder::~ContextHolder()
{
if (mJSContext)
JS_DestroyContextNoGC(mJSContext);
}
JSBool
ContextHolder::ContextHolderOperationCallback(JSContext *cx)
{
ContextHolder* thisObject =
static_cast<ContextHolder*>(JS_GetContextPrivate(cx));
NS_ASSERTION(thisObject, "How did that happen?");
JSContext *origCx = thisObject->mOrigCx;
JSOperationCallback callback = JS_GetOperationCallback(origCx);
JSBool ok = JS_TRUE;
if (callback)
ok = callback(origCx);
return ok;
}
/***************************************************************************/
/* void evalInSandbox(in AString source, in nativeobj sandbox); */
NS_IMETHODIMP
nsXPCComponents_Utils::EvalInSandbox(const nsAString &source)
{
nsresult rv;
nsCOMPtr<nsIXPConnect> xpc(do_GetService(nsIXPConnect::GetCID(), &rv));
if (NS_FAILED(rv))
return rv;
// get the xpconnect native call context
nsAXPCNativeCallContext *cc = nsnull;
xpc->GetCurrentNativeCallContext(&cc);
if (!cc)
return NS_ERROR_FAILURE;
// Get JSContext of current call
JSContext* cx;
rv = cc->GetJSContext(&cx);
if (NS_FAILED(rv) || !cx)
return NS_ERROR_FAILURE;
// get place for return value
jsval *rval = nsnull;
rv = cc->GetRetValPtr(&rval);
if (NS_FAILED(rv) || !rval)
return NS_ERROR_FAILURE;
// get argc and argv and verify arg count
PRUint32 argc;
rv = cc->GetArgc(&argc);
if (NS_FAILED(rv))
return rv;
// The second argument is the sandbox object. It is required.
if (argc < 2)
return NS_ERROR_XPC_NOT_ENOUGH_ARGS;
jsval *argv;
rv = cc->GetArgvPtr(&argv);
if (NS_FAILED(rv))
return rv;
JSObject *sandbox;
JSString *jsVersionStr = NULL;
JSString *filenameStr = NULL;
PRInt32 lineNo = 0;
JSBool ok = JS_ConvertArguments(cx, argc, argv, "*o/SSi",
&sandbox, &jsVersionStr,
&filenameStr, &lineNo);
if (!ok || !sandbox)
return NS_ERROR_INVALID_ARG;
JSVersion jsVersion = JSVERSION_DEFAULT;
// Optional third argument: JS version, as a string.
if (jsVersionStr) {
JSAutoByteString bytes(cx, jsVersionStr);
if (!bytes)
return NS_ERROR_INVALID_ARG;
jsVersion = JS_StringToVersion(bytes.ptr());
if (jsVersion == JSVERSION_UNKNOWN)
return NS_ERROR_INVALID_ARG;
}
JSAutoByteString filenameBytes;
nsXPIDLCString filename;
// Optional fourth and fifth arguments: filename and line number.
if (filenameStr) {
if (!filenameBytes.encode(cx, filenameStr))
return NS_ERROR_INVALID_ARG;
filename = filenameBytes.ptr();
} else {
// Get the current source info from xpc.
nsCOMPtr<nsIStackFrame> frame;
xpc->GetCurrentJSStack(getter_AddRefs(frame));
if (frame) {
frame->GetFilename(getter_Copies(filename));
frame->GetLineNumber(&lineNo);
}
}
rv = xpc_EvalInSandbox(cx, sandbox, source, filename.get(), lineNo,
jsVersion, false, rval);
if (NS_SUCCEEDED(rv) && !JS_IsExceptionPending(cx))
cc->SetReturnValueWasSet(true);
return rv;
}
nsresult
xpc_EvalInSandbox(JSContext *cx, JSObject *sandbox, const nsAString& source,
const char *filename, PRInt32 lineNo,
JSVersion jsVersion, bool returnStringOnly, jsval *rval)
{
#ifdef DEBUG
// NB: The "unsafe" unwrap here is OK because we must be called from chrome.
{
nsIScriptSecurityManager *ssm = XPCWrapper::GetSecurityManager();
if (ssm) {
JSStackFrame *fp;
nsIPrincipal *subjectPrincipal =
ssm->GetCxSubjectPrincipalAndFrame(cx, &fp);
bool system;
ssm->IsSystemPrincipal(subjectPrincipal, &system);
if (fp && !system) {
ssm->IsCapabilityEnabled("UniversalXPConnect", &system);
NS_ASSERTION(system, "Bad caller!");
}
}
}
#endif
sandbox = XPCWrapper::UnsafeUnwrapSecurityWrapper(sandbox);
if (!sandbox || js::GetObjectJSClass(sandbox) != &SandboxClass) {
return NS_ERROR_INVALID_ARG;
}
nsIScriptObjectPrincipal *sop =
(nsIScriptObjectPrincipal*)xpc_GetJSPrivate(sandbox);
NS_ASSERTION(sop, "Invalid sandbox passed");
nsCOMPtr<nsIPrincipal> prin = sop->GetPrincipal();
JSPrincipals *jsPrincipals;
if (!prin ||
NS_FAILED(prin->GetJSPrincipals(cx, &jsPrincipals)) ||
!jsPrincipals) {
return NS_ERROR_FAILURE;
}
JSObject *callingScope;
{
JSAutoRequest req(cx);
callingScope = JS_GetGlobalForScopeChain(cx);
if (!callingScope) {
return NS_ERROR_FAILURE;
}
}
nsRefPtr<ContextHolder> sandcx = new ContextHolder(cx, sandbox);
if (!sandcx || !sandcx->GetJSContext()) {
JS_ReportError(cx, "Can't prepare context for evalInSandbox");
JSPRINCIPALS_DROP(cx, jsPrincipals);
return NS_ERROR_OUT_OF_MEMORY;
}
if (jsVersion != JSVERSION_DEFAULT)
JS_SetVersion(sandcx->GetJSContext(), jsVersion);
XPCPerThreadData *data = XPCPerThreadData::GetData(cx);
XPCJSContextStack *stack = nsnull;
if (data && (stack = data->GetJSContextStack())) {
if (NS_FAILED(stack->Push(sandcx->GetJSContext()))) {
JS_ReportError(cx,
"Unable to initialize XPConnect with the sandbox context");
JSPRINCIPALS_DROP(cx, jsPrincipals);
return NS_ERROR_FAILURE;
}
}
if (!filename) {
// Default the filename to the codebase.
filename = jsPrincipals->codebase;
lineNo = 1;
}
nsresult rv = NS_OK;
{
JSAutoRequest req(sandcx->GetJSContext());
JSAutoEnterCompartment ac;
jsval v;
JSString *str = nsnull;
if (!ac.enter(sandcx->GetJSContext(), sandbox)) {
if (stack) {
stack->Pop(nsnull);
}
return NS_ERROR_FAILURE;
}
JSBool ok =
JS_EvaluateUCScriptForPrincipals(sandcx->GetJSContext(), sandbox,
jsPrincipals,
reinterpret_cast<const jschar *>
(PromiseFlatString(source).get()),
source.Length(), filename, lineNo,
&v);
if (ok && returnStringOnly && !(JSVAL_IS_VOID(v))) {
ok = !!(str = JS_ValueToString(sandcx->GetJSContext(), v));
}
if (!ok) {
// The sandbox threw an exception, convert it to a string (if
// asked) or convert it to a SJOW.
jsval exn;
if (JS_GetPendingException(sandcx->GetJSContext(), &exn)) {
JS_ClearPendingException(sandcx->GetJSContext());
if (returnStringOnly) {
// The caller asked for strings only, convert the
// exception into a string.
str = JS_ValueToString(sandcx->GetJSContext(), exn);
if (str) {
// We converted the exception to a string. Use that
// as the value exception.
exn = STRING_TO_JSVAL(str);
if (JS_WrapValue(cx, &exn)) {
JS_SetPendingException(cx, exn);
} else {
JS_ClearPendingException(cx);
rv = NS_ERROR_FAILURE;
}
} else {
JS_ClearPendingException(cx);
rv = NS_ERROR_FAILURE;
}
} else {
if (JS_WrapValue(cx, &exn)) {
JS_SetPendingException(cx, exn);
}
}
// Clear str so we don't confuse callers.
str = nsnull;
} else {
rv = NS_ERROR_OUT_OF_MEMORY;
}
} else {
// Convert the result into something safe for our caller.
JSAutoRequest req(cx);
JSAutoEnterCompartment ac;
if (str) {
v = STRING_TO_JSVAL(str);
}
xpc::CompartmentPrivate *sandboxdata =
static_cast<xpc::CompartmentPrivate *>
(JS_GetCompartmentPrivate(cx, js::GetObjectCompartment(sandbox)));
if (!ac.enter(cx, callingScope) ||
!WrapForSandbox(cx, sandboxdata->wantXrays, &v)) {
rv = NS_ERROR_FAILURE;
}
if (NS_SUCCEEDED(rv)) {
*rval = v;
}
}
}
if (stack) {
stack->Pop(nsnull);
}
JSPRINCIPALS_DROP(cx, jsPrincipals);
return rv;
}
/* JSObject import (in AUTF8String registryLocation,
* [optional] in JSObject targetObj);
*/
NS_IMETHODIMP
nsXPCComponents_Utils::Import(const nsACString & registryLocation)
{
nsCOMPtr<xpcIJSModuleLoader> moduleloader =
do_GetService(MOZJSCOMPONENTLOADER_CONTRACTID);
if (!moduleloader)
return NS_ERROR_FAILURE;
return moduleloader->Import(registryLocation);
}
/* unload (in AUTF8String registryLocation);
*/
NS_IMETHODIMP
nsXPCComponents_Utils::Unload(const nsACString & registryLocation)
{
nsCOMPtr<xpcIJSModuleLoader> moduleloader =
do_GetService(MOZJSCOMPONENTLOADER_CONTRACTID);
if (!moduleloader)
return NS_ERROR_FAILURE;
return moduleloader->Unload(registryLocation);
}
/* xpcIJSWeakReference getWeakReference (); */
NS_IMETHODIMP
nsXPCComponents_Utils::GetWeakReference(xpcIJSWeakReference **_retval)
{
nsRefPtr<xpcJSWeakReference> ref(new xpcJSWeakReference());
if (!ref)
return NS_ERROR_OUT_OF_MEMORY;
ref->Init();
*_retval = ref;
NS_ADDREF(*_retval);
return NS_OK;
}
/* void forceGC (); */
NS_IMETHODIMP
nsXPCComponents_Utils::ForceGC()
{
nsXPConnect* xpc = nsXPConnect::GetXPConnect();
if (!xpc)
return NS_ERROR_FAILURE;
// get the xpconnect native call context
nsAXPCNativeCallContext *cc = nsnull;
nsresult rv = xpc->GetCurrentNativeCallContext(&cc);
if (!cc)
return rv;
// Get JSContext of current call
JSContext* cx;
cc->GetJSContext(&cx);
if (!cx)
return NS_ERROR_FAILURE;
JS_GC(cx);
return NS_OK;
}
class PreciseGCRunnable : public nsRunnable
{
public:
PreciseGCRunnable(JSContext *aCx, ScheduledGCCallback* aCallback)
: mCallback(aCallback), mCx(aCx) {}
NS_IMETHOD Run()
{
nsCOMPtr<nsIJSRuntimeService> runtimeSvc = do_GetService("@mozilla.org/js/xpc/RuntimeService;1");
NS_ENSURE_STATE(runtimeSvc);
JSRuntime* rt = nsnull;
runtimeSvc->GetRuntime(&rt);
NS_ENSURE_STATE(rt);
JSContext *cx;
JSContext *iter = nsnull;
while ((cx = JS_ContextIterator(rt, &iter)) != NULL) {
if (JS_IsRunning(cx)) {
return NS_DispatchToMainThread(this);
}
}
JS_GC(mCx);
mCallback->Callback();
return NS_OK;
}
private:
nsRefPtr<ScheduledGCCallback> mCallback;
JSContext *mCx;
};
/* [inline_jscontext] void schedulePreciseGC(in ScheduledGCCallback callback); */
NS_IMETHODIMP
nsXPCComponents_Utils::SchedulePreciseGC(ScheduledGCCallback* aCallback, JSContext* aCx)
{
nsRefPtr<PreciseGCRunnable> event = new PreciseGCRunnable(aCx, aCallback);
return NS_DispatchToMainThread(event);
}
/* [implicit_jscontext] jsval nondeterministicGetWeakMapKeys(in jsval aMap); */
NS_IMETHODIMP
nsXPCComponents_Utils::NondeterministicGetWeakMapKeys(const jsval &aMap,
JSContext *aCx,
jsval *aKeys)
{
if(!JSVAL_IS_OBJECT(aMap)) {
*aKeys = JSVAL_VOID;
return NS_OK;
}
JSObject *objRet;
if(!JS_NondeterministicGetWeakMapKeys(aCx, JSVAL_TO_OBJECT(aMap), &objRet))
return NS_ERROR_OUT_OF_MEMORY;
*aKeys = objRet ? OBJECT_TO_JSVAL(objRet) : JSVAL_VOID;
return NS_OK;
}
/* void getGlobalForObject(); */
NS_IMETHODIMP
nsXPCComponents_Utils::GetGlobalForObject()
{
nsresult rv;
nsCOMPtr<nsIXPConnect> xpc(do_GetService(nsIXPConnect::GetCID(), &rv));
if (NS_FAILED(rv))
return NS_ERROR_FAILURE;
// get the xpconnect native call context
nsAXPCNativeCallContext *cc = nsnull;
xpc->GetCurrentNativeCallContext(&cc);
if (!cc)
return NS_ERROR_FAILURE;
// Get JSContext of current call
JSContext* cx;
rv = cc->GetJSContext(&cx);
if (NS_FAILED(rv) || !cx)
return NS_ERROR_FAILURE;
// get place for return value
jsval *rval = nsnull;
rv = cc->GetRetValPtr(&rval);
if (NS_FAILED(rv) || !rval)
return NS_ERROR_FAILURE;
// get argc and argv and verify arg count
PRUint32 argc;
rv = cc->GetArgc(&argc);
if (NS_FAILED(rv))
return NS_ERROR_FAILURE;
if (argc != 1)
return NS_ERROR_XPC_NOT_ENOUGH_ARGS;
jsval* argv;
rv = cc->GetArgvPtr(&argv);
if (NS_FAILED(rv) || !argv)
return NS_ERROR_FAILURE;
// first argument must be an object
if (JSVAL_IS_PRIMITIVE(argv[0]))
return NS_ERROR_XPC_BAD_CONVERT_JS;
JSObject *obj = JS_GetGlobalForObject(cx, JSVAL_TO_OBJECT(argv[0]));
*rval = OBJECT_TO_JSVAL(obj);
// Outerize if necessary.
if (JSObjectOp outerize = js::GetObjectClass(obj)->ext.outerObject)
*rval = OBJECT_TO_JSVAL(outerize(cx, obj));
cc->SetReturnValueWasSet(true);
return NS_OK;
}
/* jsval createObjectIn(in jsval vobj); */
NS_IMETHODIMP
nsXPCComponents_Utils::CreateObjectIn(const jsval &vobj, JSContext *cx, jsval *rval)
{
if (!cx)
return NS_ERROR_FAILURE;
// first argument must be an object
if (JSVAL_IS_PRIMITIVE(vobj))
return NS_ERROR_XPC_BAD_CONVERT_JS;
JSObject *scope = js::UnwrapObject(JSVAL_TO_OBJECT(vobj));
JSObject *obj;
{
JSAutoEnterCompartment ac;
if (!ac.enter(cx, scope))
return NS_ERROR_FAILURE;
obj = JS_NewObject(cx, nsnull, nsnull, scope);
if (!obj)
return NS_ERROR_FAILURE;
}
if (!JS_WrapObject(cx, &obj))
return NS_ERROR_FAILURE;
*rval = OBJECT_TO_JSVAL(obj);
return NS_OK;
}
JSBool
FunctionWrapper(JSContext *cx, uintN argc, jsval *vp)
{
jsval v;
if (!JS_GetReservedSlot(cx, JSVAL_TO_OBJECT(JS_CALLEE(cx, vp)), 0, &v))
return JS_FALSE;
NS_ASSERTION(JSVAL_IS_OBJECT(v), "weird function");
return JS_CallFunctionValue(cx, JS_THIS_OBJECT(cx, vp), v,
argc, JS_ARGV(cx, vp), vp);
}
JSBool
WrapCallable(JSContext *cx, JSObject *obj, jsid id, JSObject *propobj, jsval *vp)
{
JSFunction *fun = JS_NewFunctionById(cx, FunctionWrapper, 0, 0,
JS_GetGlobalForObject(cx, obj), id);
if (!fun)
return JS_FALSE;
JSObject *funobj = JS_GetFunctionObject(fun);
if (!JS_SetReservedSlot(cx, funobj, 0, OBJECT_TO_JSVAL(propobj)))
return JS_FALSE;
*vp = OBJECT_TO_JSVAL(funobj);
return JS_TRUE;
}
/* void makeObjectPropsNormal(jsval vobj); */
NS_IMETHODIMP
nsXPCComponents_Utils::MakeObjectPropsNormal(const jsval &vobj, JSContext *cx)
{
if (!cx)
return NS_ERROR_FAILURE;
// first argument must be an object
if (JSVAL_IS_PRIMITIVE(vobj))
return NS_ERROR_XPC_BAD_CONVERT_JS;
JSObject *obj = js::UnwrapObject(JSVAL_TO_OBJECT(vobj));
JSAutoEnterCompartment ac;
if (!ac.enter(cx, obj))
return NS_ERROR_FAILURE;
js::AutoIdArray ida(cx, JS_Enumerate(cx, obj));
if (!ida)
return NS_ERROR_FAILURE;
for (size_t i = 0; i < ida.length(); ++i) {
jsid id = ida[i];
jsval v;
if (!JS_GetPropertyById(cx, obj, id, &v))
return NS_ERROR_FAILURE;
if (JSVAL_IS_PRIMITIVE(v))
continue;
JSObject *propobj = JSVAL_TO_OBJECT(v);
// TODO Deal with non-functions.
if (!js::IsWrapper(propobj) || !JS_ObjectIsCallable(cx, propobj))
continue;
if (!WrapCallable(cx, obj, id, propobj, &v) ||
!JS_SetPropertyById(cx, obj, id, &v))
return NS_ERROR_FAILURE;
}
return NS_OK;
}
/* string canCreateWrapper (in nsIIDPtr iid); */
NS_IMETHODIMP
nsXPCComponents_Utils::CanCreateWrapper(const nsIID * iid, char **_retval)
{
// We let anyone do this...
*_retval = xpc_CloneAllAccess();
return NS_OK;
}
/* string canCallMethod (in nsIIDPtr iid, in wstring methodName); */
NS_IMETHODIMP
nsXPCComponents_Utils::CanCallMethod(const nsIID * iid, const PRUnichar *methodName, char **_retval)
{
static const char* allowed[] = { "lookupMethod", "evalInSandbox", nsnull };
*_retval = xpc_CheckAccessList(methodName, allowed);
return NS_OK;
}
/* string canGetProperty (in nsIIDPtr iid, in wstring propertyName); */
NS_IMETHODIMP
nsXPCComponents_Utils::CanGetProperty(const nsIID * iid, const PRUnichar *propertyName, char **_retval)
{
*_retval = nsnull;
return NS_OK;
}
/* string canSetProperty (in nsIIDPtr iid, in wstring propertyName); */
NS_IMETHODIMP
nsXPCComponents_Utils::CanSetProperty(const nsIID * iid, const PRUnichar *propertyName, char **_retval)
{
// If you have to ask, then the answer is NO
*_retval = nsnull;
return NS_OK;
}
nsresult
GetBoolOption(JSContext* cx, uint32 aOption, bool* aValue)
{
*aValue = !!(JS_GetOptions(cx) & aOption);
return NS_OK;
}
nsresult
SetBoolOption(JSContext* cx, uint32 aOption, bool aValue)
{
uint32 options = JS_GetOptions(cx);
if (aValue) {
options |= aOption;
} else {
options &= ~aOption;
}
JS_SetOptions(cx, options & JSALLOPTION_MASK);
return NS_OK;
}
// FIXME/bug 671453: work around broken [implicit_jscontext]
nsresult
GetCurrentJSContext(JSContext** aCx)
{
nsresult rv;
nsCOMPtr<nsIXPConnect> xpc(do_GetService(nsIXPConnect::GetCID(), &rv));
if(NS_FAILED(rv))
return rv;
// get the xpconnect native call context
nsAXPCNativeCallContext *cc = nsnull;
xpc->GetCurrentNativeCallContext(&cc);
if(!cc)
return NS_ERROR_FAILURE;
// Get JSContext of current call
JSContext* cx;
rv = cc->GetJSContext(&cx);
if(NS_FAILED(rv) || !cx)
return NS_ERROR_FAILURE;
*aCx = cx;
return NS_OK;
}
#define GENERATE_JSOPTION_GETTER_SETTER(_attr, _flag) \
NS_IMETHODIMP \
nsXPCComponents_Utils::Get## _attr(bool* aValue) \
{ \
JSContext* cx; \
nsresult rv = GetCurrentJSContext(&cx); \
return NS_FAILED(rv) ? rv : GetBoolOption(cx, _flag, aValue); \
} \
NS_IMETHODIMP \
nsXPCComponents_Utils::Set## _attr(bool aValue) \
{ \
JSContext* cx; \
nsresult rv = GetCurrentJSContext(&cx); \
return NS_FAILED(rv) ? rv : SetBoolOption(cx, _flag, aValue); \
}
GENERATE_JSOPTION_GETTER_SETTER(Strict, JSOPTION_STRICT)
GENERATE_JSOPTION_GETTER_SETTER(Werror, JSOPTION_WERROR)
GENERATE_JSOPTION_GETTER_SETTER(Atline, JSOPTION_ATLINE)
GENERATE_JSOPTION_GETTER_SETTER(Xml, JSOPTION_XML)
GENERATE_JSOPTION_GETTER_SETTER(Relimit, JSOPTION_RELIMIT)
GENERATE_JSOPTION_GETTER_SETTER(Tracejit, JSOPTION_JIT)
GENERATE_JSOPTION_GETTER_SETTER(Methodjit, JSOPTION_METHODJIT)
GENERATE_JSOPTION_GETTER_SETTER(Jitprofiling, JSOPTION_PROFILING)
GENERATE_JSOPTION_GETTER_SETTER(Methodjit_always, JSOPTION_METHODJIT_ALWAYS)
#undef GENERATE_JSOPTION_GETTER_SETTER
NS_IMETHODIMP
nsXPCComponents_Utils::SetGCZeal(PRInt32 aValue, JSContext* cx)
{
#ifdef JS_GC_ZEAL
JS_SetGCZeal(cx, PRUint8(aValue), JS_DEFAULT_ZEAL_FREQ, JS_FALSE);
#endif
return NS_OK;
}
/***************************************************************************/
/***************************************************************************/
/***************************************************************************/
// XXXjband We ought to cache the wrapper in the object's slots rather than
// re-wrapping on demand
NS_INTERFACE_MAP_BEGIN(nsXPCComponents)
NS_INTERFACE_MAP_ENTRY(nsIXPCComponents)
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
NS_INTERFACE_MAP_ENTRY(nsISecurityCheckedComponent)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCComponents)
NS_INTERFACE_MAP_END_THREADSAFE
NS_IMPL_THREADSAFE_ADDREF(nsXPCComponents)
NS_IMPL_THREADSAFE_RELEASE(nsXPCComponents)
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
nsXPCComponents::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
const PRUint32 count = 3;
*aCount = count;
nsIID **array;
*aArray = array = static_cast<nsIID**>(nsMemory::Alloc(count * sizeof(nsIID*)));
if (!array)
return NS_ERROR_OUT_OF_MEMORY;
PRUint32 index = 0;
nsIID* clone;
#define PUSH_IID(id) \
clone = static_cast<nsIID *>(nsMemory::Clone(&NS_GET_IID( id ), \
sizeof(nsIID))); \
if (!clone) \
goto oom; \
array[index++] = clone;
PUSH_IID(nsIXPCComponents)
PUSH_IID(nsIXPCScriptable)
PUSH_IID(nsISecurityCheckedComponent)
#undef PUSH_IID
return NS_OK;
oom:
while (index)
nsMemory::Free(array[--index]);
nsMemory::Free(array);
*aArray = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCComponents::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
return NS_OK;
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
nsXPCComponents::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
return NS_ERROR_NOT_AVAILABLE;
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
nsXPCComponents::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents";
*aClassDescription = (char*)nsMemory::Clone(classDescription, sizeof(classDescription));
return *aClassDescription ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
nsXPCComponents::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
return NS_OK;
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
nsXPCComponents::GetImplementationLanguage(PRUint32 *aImplementationLanguage)
{
*aImplementationLanguage = nsIProgrammingLanguage::CPLUSPLUS;
return NS_OK;
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
nsXPCComponents::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
return NS_OK;
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
nsXPCComponents::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
}
nsXPCComponents::nsXPCComponents()
: mInterfaces(nsnull),
mInterfacesByID(nsnull),
mClasses(nsnull),
mClassesByID(nsnull),
mResults(nsnull),
mID(nsnull),
mException(nsnull),
mConstructor(nsnull),
mUtils(nsnull)
{
}
nsXPCComponents::~nsXPCComponents()
{
ClearMembers();
}
void
nsXPCComponents::ClearMembers()
{
NS_IF_RELEASE(mInterfaces);
NS_IF_RELEASE(mInterfacesByID);
NS_IF_RELEASE(mClasses);
NS_IF_RELEASE(mClassesByID);
NS_IF_RELEASE(mResults);
NS_IF_RELEASE(mID);
NS_IF_RELEASE(mException);
NS_IF_RELEASE(mConstructor);
NS_IF_RELEASE(mUtils);
}
/*******************************************/
#define XPC_IMPL_GET_OBJ_METHOD(_n) \
NS_IMETHODIMP nsXPCComponents::Get##_n(nsIXPCComponents_##_n * *a##_n) { \
NS_ENSURE_ARG_POINTER(a##_n); \
if (!m##_n) { \
if (!(m##_n = new nsXPCComponents_##_n())) { \
*a##_n = nsnull; \
return NS_ERROR_OUT_OF_MEMORY; \
} \
NS_ADDREF(m##_n); \
} \
NS_ADDREF(m##_n); \
*a##_n = m##_n; \
return NS_OK; \
}
XPC_IMPL_GET_OBJ_METHOD(Interfaces)
XPC_IMPL_GET_OBJ_METHOD(InterfacesByID)
XPC_IMPL_GET_OBJ_METHOD(Classes)
XPC_IMPL_GET_OBJ_METHOD(ClassesByID)
XPC_IMPL_GET_OBJ_METHOD(Results)
XPC_IMPL_GET_OBJ_METHOD(ID)
XPC_IMPL_GET_OBJ_METHOD(Exception)
XPC_IMPL_GET_OBJ_METHOD(Constructor)
XPC_IMPL_GET_OBJ_METHOD(Utils)
#undef XPC_IMPL_GET_OBJ_METHOD
/*******************************************/
NS_IMETHODIMP
nsXPCComponents::IsSuccessCode(nsresult result, bool *out)
{
*out = NS_SUCCEEDED(result);
return NS_OK;
}
NS_IMETHODIMP
nsXPCComponents::GetStack(nsIStackFrame * *aStack)
{
nsresult rv;
nsXPConnect* xpc = nsXPConnect::GetXPConnect();
if (!xpc)
return NS_ERROR_FAILURE;
rv = xpc->GetCurrentJSStack(aStack);
return rv;
}
NS_IMETHODIMP
nsXPCComponents::GetManager(nsIComponentManager * *aManager)
{
NS_ASSERTION(aManager, "bad param");
return NS_GetComponentManager(aManager);
}
/**********************************************/
// The nsIXPCScriptable map declaration that will generate stubs for us...
#define XPC_MAP_CLASSNAME nsXPCComponents
#define XPC_MAP_QUOTED_CLASSNAME "nsXPCComponents"
#define XPC_MAP_WANT_NEWRESOLVE
#define XPC_MAP_WANT_GETPROPERTY
#define XPC_MAP_WANT_SETPROPERTY
#define XPC_MAP_FLAGS nsIXPCScriptable::ALLOW_PROP_MODS_DURING_RESOLVE
#include "xpc_map_end.h" /* This will #undef the above */
/* bool newResolve (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in jsval id, in PRUint32 flags, out JSObjectPtr objp); */
NS_IMETHODIMP
nsXPCComponents::NewResolve(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
jsid id, PRUint32 flags,
JSObject * *objp, bool *_retval)
{
XPCJSRuntime* rt = nsXPConnect::GetRuntimeInstance();
if (!rt)
return NS_ERROR_FAILURE;
uintN attrs = 0;
if (id == rt->GetStringID(XPCJSRuntime::IDX_LAST_RESULT))
attrs = JSPROP_READONLY;
else if (id != rt->GetStringID(XPCJSRuntime::IDX_RETURN_CODE))
return NS_OK;
*objp = obj;
*_retval = JS_DefinePropertyById(cx, obj, id, JSVAL_VOID, nsnull, nsnull,
JSPROP_ENUMERATE | JSPROP_PERMANENT |
attrs);
return NS_OK;
}
/* bool getProperty (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in jsval id, in JSValPtr vp); */
NS_IMETHODIMP
nsXPCComponents::GetProperty(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
jsid id, jsval * vp, bool *_retval)
{
XPCContext* xpcc = XPCContext::GetXPCContext(cx);
if (!xpcc)
return NS_ERROR_FAILURE;
bool doResult = JS_FALSE;
nsresult res;
XPCJSRuntime* rt = xpcc->GetRuntime();
if (id == rt->GetStringID(XPCJSRuntime::IDX_LAST_RESULT)) {
res = xpcc->GetLastResult();
doResult = JS_TRUE;
} else if (id == rt->GetStringID(XPCJSRuntime::IDX_RETURN_CODE)) {
res = xpcc->GetPendingResult();
doResult = JS_TRUE;
}
nsresult rv = NS_OK;
if (doResult) {
if (!JS_NewNumberValue(cx, (jsdouble) res, vp))
return NS_ERROR_OUT_OF_MEMORY;
rv = NS_SUCCESS_I_DID_SOMETHING;
}
return rv;
}
/* bool setProperty (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in jsid id, in JSValPtr vp); */
NS_IMETHODIMP
nsXPCComponents::SetProperty(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj, jsid id,
jsval * vp, bool *_retval)
{
XPCContext* xpcc = XPCContext::GetXPCContext(cx);
if (!xpcc)
return NS_ERROR_FAILURE;
XPCJSRuntime* rt = xpcc->GetRuntime();
if (!rt)
return NS_ERROR_FAILURE;
if (id == rt->GetStringID(XPCJSRuntime::IDX_RETURN_CODE)) {
nsresult rv;
if (JS_ValueToECMAUint32(cx, *vp, (uint32*)&rv)) {
xpcc->SetPendingResult(rv);
xpcc->SetLastResult(rv);
return NS_SUCCESS_I_DID_SOMETHING;
}
return NS_ERROR_FAILURE;
}
return NS_ERROR_XPC_CANT_MODIFY_PROP_ON_WN;
}
// static
JSBool
nsXPCComponents::AttachNewComponentsObject(XPCCallContext& ccx,
XPCWrappedNativeScope* aScope,
JSObject* aGlobal)
{
if (!aGlobal)
return JS_FALSE;
nsXPCComponents* components = new nsXPCComponents();
if (!components)
return JS_FALSE;
nsCOMPtr<nsIXPCComponents> cholder(components);
AutoMarkingNativeInterfacePtr iface(ccx);
iface = XPCNativeInterface::GetNewOrUsed(ccx, &NS_GET_IID(nsIXPCComponents));
if (!iface)
return JS_FALSE;
nsCOMPtr<XPCWrappedNative> wrapper;
xpcObjectHelper helper(cholder);
XPCWrappedNative::GetNewOrUsed(ccx, helper, aScope, iface,
OBJ_IS_NOT_GLOBAL, getter_AddRefs(wrapper));
if (!wrapper)
return JS_FALSE;
aScope->SetComponents(components);
jsid id = ccx.GetRuntime()->GetStringID(XPCJSRuntime::IDX_COMPONENTS);
JSObject* obj;
return NS_SUCCEEDED(wrapper->GetJSObject(&obj)) &&
obj && JS_DefinePropertyById(ccx, aGlobal, id, OBJECT_TO_JSVAL(obj),
nsnull, nsnull,
JSPROP_PERMANENT | JSPROP_READONLY);
}
/* void lookupMethod (); */
NS_IMETHODIMP nsXPCComponents::LookupMethod()
{
nsresult rv;
nsCOMPtr<nsIXPCComponents_Utils> utils;
NS_WARNING("Components.lookupMethod deprecated, use Components.utils.lookupMethod");
rv = GetUtils(getter_AddRefs(utils));
if (NS_FAILED(rv))
return rv;
return utils->LookupMethod();
}
/* void reportError (); */
NS_IMETHODIMP nsXPCComponents::ReportError()
{
nsresult rv;
nsCOMPtr<nsIXPCComponents_Utils> utils;
NS_WARNING("Components.reportError deprecated, use Components.utils.reportError");
rv = GetUtils(getter_AddRefs(utils));
if (NS_FAILED(rv))
return rv;
return utils->ReportError();
}
/* string canCreateWrapper (in nsIIDPtr iid); */
NS_IMETHODIMP
nsXPCComponents::CanCreateWrapper(const nsIID * iid, char **_retval)
{
// We let anyone do this...
*_retval = xpc_CloneAllAccess();
return NS_OK;
}
/* string canCallMethod (in nsIIDPtr iid, in wstring methodName); */
NS_IMETHODIMP
nsXPCComponents::CanCallMethod(const nsIID * iid, const PRUnichar *methodName, char **_retval)
{
static const char* allowed[] = { "isSuccessCode", "lookupMethod", nsnull };
*_retval = xpc_CheckAccessList(methodName, allowed);
return NS_OK;
}
/* string canGetProperty (in nsIIDPtr iid, in wstring propertyName); */
NS_IMETHODIMP
nsXPCComponents::CanGetProperty(const nsIID * iid, const PRUnichar *propertyName, char **_retval)
{
static const char* allowed[] = { "interfaces", "interfacesByID", "results", nsnull};
*_retval = xpc_CheckAccessList(propertyName, allowed);
return NS_OK;
}
/* string canSetProperty (in nsIIDPtr iid, in wstring propertyName); */
NS_IMETHODIMP
nsXPCComponents::CanSetProperty(const nsIID * iid, const PRUnichar *propertyName, char **_retval)
{
// If you have to ask, then the answer is NO
*_retval = nsnull;
return NS_OK;
}
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