NS_IMETHODIMP
nsXPConnect::MarkErrorUnreported(JSContext *cx)
{
XPCContext *xpcc = XPCContext::GetXPCContext(cx);
xpcc->MarkErrorUnreported();
return NS_OK;
}
SweepContextsCB(JSDHashTable *table, JSDHashEntryHdr *hdr,
uint32 number, void *arg)
{
XPCContext* xpcc = ((JSContext2XPCContextMap::Entry*)hdr)->value;
if(xpcc->IsMarked())
{
xpcc->Unmark();
return JS_DHASH_NEXT;
}
// this XPCContext represents a dead JSContext - delete it
delete xpcc;
return JS_DHASH_REMOVE;
}
XPCContext*
XPCJSRuntime::SyncXPCContextList(JSContext* cx /* = nsnull */)
{
// hold the map lock through this whole thing
XPCAutoLock lock(GetMapLock());
XPCContext* found = nsnull;
// add XPCContexts that represent any JSContexts we have not seen before
JSContext *cur, *iter = nsnull;
while(nsnull != (cur = JS_ContextIterator(mJSRuntime, &iter)))
{
XPCContext* xpcc = mContextMap->Find(cur);
if(!xpcc)
{
xpcc = XPCContext::newXPCContext(this, cur);
if(xpcc)
mContextMap->Add(xpcc);
}
if(xpcc)
{
xpcc->Mark();
}
// if it is our first context then we need to generate our string ids
if(!mStrIDs[0])
{
JSAutoRequest ar(cur);
GenerateStringIDs(cur);
}
if(cx && cx == cur)
found = xpcc;
}
// get rid of any XPCContexts that represent dead JSContexts
mContextMap->Enumerate(SweepContextsCB, 0);
XPCPerThreadData* tls = XPCPerThreadData::GetData(cx);
if(tls)
{
if(found)
tls->SetRecentContext(cx, found);
else
tls->ClearRecentContext();
}
return found;
}
/* nsISupports getService (); */
NS_IMETHODIMP
nsJSCID::GetService(const JS::Value& iidval, JSContext* cx,
PRUint8 optionalArgc, JS::Value* retval)
{
if (!mDetails.IsValid())
return NS_ERROR_XPC_BAD_CID;
JSObject* obj = GetWrapperObject();
if (!obj) {
return NS_ERROR_UNEXPECTED;
}
// Do the security check if necessary
XPCContext* xpcc = XPCContext::GetXPCContext(cx);
nsIXPCSecurityManager* sm;
sm = xpcc->GetAppropriateSecurityManager(nsIXPCSecurityManager::HOOK_GET_SERVICE);
if (sm && NS_FAILED(sm->CanCreateInstance(cx, mDetails.ID()))) {
NS_ASSERTION(JS_IsExceptionPending(cx),
"security manager vetoed GetService without setting exception");
return NS_OK;
}
// If an IID was passed in then use it
const nsID* iid = GetIIDArg(optionalArgc, iidval, cx);
if (!iid)
return NS_ERROR_XPC_BAD_IID;
nsCOMPtr<nsIServiceManager> svcMgr;
nsresult rv = NS_GetServiceManager(getter_AddRefs(svcMgr));
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsISupports> srvc;
rv = svcMgr->GetService(mDetails.ID(), *iid, getter_AddRefs(srvc));
NS_ASSERTION(NS_FAILED(rv) || srvc, "service manager returned success, but service is null!");
if (NS_FAILED(rv) || !srvc)
return NS_ERROR_XPC_GS_RETURNED_FAILURE;
JSObject* instJSObj;
nsCOMPtr<nsIXPConnectJSObjectHolder> holder;
rv = nsXPConnect::GetXPConnect()->WrapNative(cx, obj, srvc, *iid, getter_AddRefs(holder));
if (NS_FAILED(rv) || !holder || NS_FAILED(holder->GetJSObject(&instJSObj)))
return NS_ERROR_XPC_CANT_CREATE_WN;
*retval = OBJECT_TO_JSVAL(instJSObj);
return NS_OK;
}
/* nsISupports createInstance (); */
NS_IMETHODIMP
nsJSCID::CreateInstance(const JS::Value& iidval, JSContext* cx,
PRUint8 optionalArgc, JS::Value* retval)
{
if (!mDetails.IsValid())
return NS_ERROR_XPC_BAD_CID;
JSObject* obj = GetWrapperObject();
if (!obj) {
return NS_ERROR_UNEXPECTED;
}
// Do the security check if necessary
XPCContext* xpcc = XPCContext::GetXPCContext(cx);
nsIXPCSecurityManager* sm;
sm = xpcc->GetAppropriateSecurityManager(nsIXPCSecurityManager::HOOK_CREATE_INSTANCE);
if (sm && NS_FAILED(sm->CanCreateInstance(cx, mDetails.ID()))) {
NS_ERROR("how are we not being called from chrome here?");
return NS_OK;
}
// If an IID was passed in then use it
const nsID* iid = GetIIDArg(optionalArgc, iidval, cx);
if (!iid)
return NS_ERROR_XPC_BAD_IID;
nsCOMPtr<nsIComponentManager> compMgr;
nsresult rv = NS_GetComponentManager(getter_AddRefs(compMgr));
if (NS_FAILED(rv))
return NS_ERROR_UNEXPECTED;
nsCOMPtr<nsISupports> inst;
rv = compMgr->CreateInstance(mDetails.ID(), nsnull, *iid, getter_AddRefs(inst));
NS_ASSERTION(NS_FAILED(rv) || inst, "component manager returned success, but instance is null!");
if (NS_FAILED(rv) || !inst)
return NS_ERROR_XPC_CI_RETURNED_FAILURE;
rv = nsXPConnect::GetXPConnect()->WrapNativeToJSVal(cx, obj, inst, nsnull, iid, true, retval, nsnull);
if (NS_FAILED(rv) || JSVAL_IS_PRIMITIVE(*retval))
return NS_ERROR_XPC_CANT_CREATE_WN;
return NS_OK;
}
/* nsISupports getService (); */
NS_IMETHODIMP
nsJSCID::GetService(nsISupports **_retval)
{
if(!mDetails.IsValid())
return NS_ERROR_XPC_BAD_CID;
nsXPConnect* xpc = nsXPConnect::GetXPConnect();
if(!xpc)
return NS_ERROR_UNEXPECTED;
nsAXPCNativeCallContext *ccxp = nsnull;
xpc->GetCurrentNativeCallContext(&ccxp);
if(!ccxp)
return NS_ERROR_UNEXPECTED;
PRUint32 argc;
jsval * argv;
jsval * vp;
JSContext* cx;
JSObject* obj;
ccxp->GetJSContext(&cx);
ccxp->GetArgc(&argc);
ccxp->GetArgvPtr(&argv);
ccxp->GetRetValPtr(&vp);
nsCOMPtr<nsIXPConnectWrappedNative> wrapper;
ccxp->GetCalleeWrapper(getter_AddRefs(wrapper));
wrapper->GetJSObject(&obj);
// Do the security check if necessary
XPCContext* xpcc = XPCContext::GetXPCContext(cx);
nsIXPCSecurityManager* sm;
sm = xpcc->GetAppropriateSecurityManager(
nsIXPCSecurityManager::HOOK_GET_SERVICE);
if(sm && NS_FAILED(sm->CanCreateInstance(cx, mDetails.ID())))
{
NS_ASSERTION(JS_IsExceptionPending(cx),
"security manager vetoed GetService without setting exception");
return NS_OK;
}
// If an IID was passed in then use it
const nsID* iid = GetIIDArg(argc, argv, cx);
if (!iid)
return NS_ERROR_XPC_BAD_IID;
nsCOMPtr<nsIServiceManager> svcMgr;
nsresult rv = NS_GetServiceManager(getter_AddRefs(svcMgr));
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsISupports> srvc;
rv = svcMgr->GetService(mDetails.ID(), *iid, getter_AddRefs(srvc));
NS_ASSERTION(NS_FAILED(rv) || srvc, "service manager returned success, but service is null!");
if(NS_FAILED(rv) || !srvc)
return NS_ERROR_XPC_GS_RETURNED_FAILURE;
JSObject* instJSObj;
nsCOMPtr<nsIXPConnectJSObjectHolder> holder;
rv = xpc->WrapNative(cx, obj, srvc, *iid, getter_AddRefs(holder));
if(NS_FAILED(rv) || !holder || NS_FAILED(holder->GetJSObject(&instJSObj)))
return NS_ERROR_XPC_CANT_CREATE_WN;
*vp = OBJECT_TO_JSVAL(instJSObj);
ccxp->SetReturnValueWasSet(JS_TRUE);
return NS_OK;
}
void
XPCJSRuntime::DebugDump(PRInt16 depth)
{
#ifdef DEBUG
depth--;
XPC_LOG_ALWAYS(("XPCJSRuntime @ %x", this));
XPC_LOG_INDENT();
XPC_LOG_ALWAYS(("mXPConnect @ %x", mXPConnect));
XPC_LOG_ALWAYS(("mJSRuntime @ %x", mJSRuntime));
XPC_LOG_ALWAYS(("mMapLock @ %x", mMapLock));
XPC_LOG_ALWAYS(("mWrappedJSToReleaseArray @ %x with %d wrappers(s)", \
&mWrappedJSToReleaseArray,
mWrappedJSToReleaseArray.Length()));
int cxCount = 0;
JSContext* iter = nsnull;
while(JS_ContextIterator(mJSRuntime, &iter))
++cxCount;
XPC_LOG_ALWAYS(("%d JS context(s)", cxCount));
iter = nsnull;
while(JS_ContextIterator(mJSRuntime, &iter))
{
XPCContext *xpc = XPCContext::GetXPCContext(iter);
XPC_LOG_INDENT();
xpc->DebugDump(depth);
XPC_LOG_OUTDENT();
}
XPC_LOG_ALWAYS(("mWrappedJSClassMap @ %x with %d wrapperclasses(s)", \
mWrappedJSClassMap, mWrappedJSClassMap ? \
mWrappedJSClassMap->Count() : 0));
// iterate wrappersclasses...
if(depth && mWrappedJSClassMap && mWrappedJSClassMap->Count())
{
XPC_LOG_INDENT();
mWrappedJSClassMap->Enumerate(WrappedJSClassMapDumpEnumerator, &depth);
XPC_LOG_OUTDENT();
}
XPC_LOG_ALWAYS(("mWrappedJSMap @ %x with %d wrappers(s)", \
mWrappedJSMap, mWrappedJSMap ? \
mWrappedJSMap->Count() : 0));
// iterate wrappers...
if(depth && mWrappedJSMap && mWrappedJSMap->Count())
{
XPC_LOG_INDENT();
mWrappedJSMap->Enumerate(WrappedJSMapDumpEnumerator, &depth);
XPC_LOG_OUTDENT();
}
XPC_LOG_ALWAYS(("mIID2NativeInterfaceMap @ %x with %d interface(s)", \
mIID2NativeInterfaceMap, mIID2NativeInterfaceMap ? \
mIID2NativeInterfaceMap->Count() : 0));
XPC_LOG_ALWAYS(("mClassInfo2NativeSetMap @ %x with %d sets(s)", \
mClassInfo2NativeSetMap, mClassInfo2NativeSetMap ? \
mClassInfo2NativeSetMap->Count() : 0));
XPC_LOG_ALWAYS(("mThisTranslatorMap @ %x with %d translator(s)", \
mThisTranslatorMap, mThisTranslatorMap ? \
mThisTranslatorMap->Count() : 0));
XPC_LOG_ALWAYS(("mNativeSetMap @ %x with %d sets(s)", \
mNativeSetMap, mNativeSetMap ? \
mNativeSetMap->Count() : 0));
// iterate sets...
if(depth && mNativeSetMap && mNativeSetMap->Count())
{
XPC_LOG_INDENT();
mNativeSetMap->Enumerate(NativeSetDumpEnumerator, &depth);
XPC_LOG_OUTDENT();
}
XPC_LOG_OUTDENT();
#endif
}
/* nsISupports createInstance (); */
NS_IMETHODIMP
nsJSCID::CreateInstance(nsISupports **_retval)
{
if(!mDetails.IsValid())
return NS_ERROR_XPC_BAD_CID;
nsXPConnect* xpc = nsXPConnect::GetXPConnect();
if(!xpc)
return NS_ERROR_UNEXPECTED;
nsAXPCNativeCallContext *ccxp = nsnull;
xpc->GetCurrentNativeCallContext(&ccxp);
if(!ccxp)
return NS_ERROR_UNEXPECTED;
PRUint32 argc;
jsval * argv;
jsval * vp;
JSContext* cx;
JSObject* obj;
ccxp->GetJSContext(&cx);
ccxp->GetArgc(&argc);
ccxp->GetArgvPtr(&argv);
ccxp->GetRetValPtr(&vp);
nsCOMPtr<nsIXPConnectWrappedNative> wrapper;
ccxp->GetCalleeWrapper(getter_AddRefs(wrapper));
wrapper->GetJSObject(&obj);
// Do the security check if necessary
XPCContext* xpcc = XPCContext::GetXPCContext(cx);
nsIXPCSecurityManager* sm;
sm = xpcc->GetAppropriateSecurityManager(
nsIXPCSecurityManager::HOOK_CREATE_INSTANCE);
if(sm && NS_FAILED(sm->CanCreateInstance(cx, mDetails.ID())))
{
NS_ERROR("how are we not being called from chrome here?");
return NS_OK;
}
// If an IID was passed in then use it
const nsID* iid = GetIIDArg(argc, argv, cx);
if (!iid)
return NS_ERROR_XPC_BAD_IID;
nsCOMPtr<nsIComponentManager> compMgr;
nsresult rv = NS_GetComponentManager(getter_AddRefs(compMgr));
if (NS_FAILED(rv))
return NS_ERROR_UNEXPECTED;
nsCOMPtr<nsISupports> inst;
rv = compMgr->CreateInstance(mDetails.ID(), nsnull, *iid, getter_AddRefs(inst));
NS_ASSERTION(NS_FAILED(rv) || inst, "component manager returned success, but instance is null!");
if(NS_FAILED(rv) || !inst)
return NS_ERROR_XPC_CI_RETURNED_FAILURE;
rv = xpc->WrapNativeToJSVal(cx, obj, inst, nsnull, iid, PR_TRUE, vp, nsnull);
if(NS_FAILED(rv) || JSVAL_IS_PRIMITIVE(*vp))
return NS_ERROR_XPC_CANT_CREATE_WN;
ccxp->SetReturnValueWasSet(JS_TRUE);
return NS_OK;
}
JSBool XPCDispObject::Invoke(XPCCallContext & ccx, CallMode mode)
{
nsresult rv = ccx.CanCallNow();
if(NS_FAILED(rv))
{
// If the security manager is complaining then this is not really an
// internal error in xpconnect. So, no reason to botch the assertion.
NS_ASSERTION(rv == NS_ERROR_XPC_SECURITY_MANAGER_VETO,
"hmm? CanCallNow failed in XPCDispObject::Invoke. "
"We are finding out about this late!");
XPCThrower::Throw(rv, ccx);
return JS_FALSE;
}
// TODO: Remove type cast and change GetIDispatchMember to use the correct type
XPCDispInterface::Member* member = reinterpret_cast<XPCDispInterface::Member*>(ccx.GetIDispatchMember());
XPCJSRuntime* rt = ccx.GetRuntime();
XPCContext* xpcc = ccx.GetXPCContext();
XPCPerThreadData* tls = ccx.GetThreadData();
jsval* argv = ccx.GetArgv();
uintN argc = ccx.GetArgc();
tls->SetException(nsnull);
xpcc->SetLastResult(NS_ERROR_UNEXPECTED);
// set up the method index and do the security check if needed
PRUint32 secFlag;
PRUint32 secAction;
switch(mode)
{
case CALL_METHOD:
secFlag = nsIXPCSecurityManager::HOOK_CALL_METHOD;
secAction = nsIXPCSecurityManager::ACCESS_CALL_METHOD;
break;
case CALL_GETTER:
secFlag = nsIXPCSecurityManager::HOOK_GET_PROPERTY;
secAction = nsIXPCSecurityManager::ACCESS_GET_PROPERTY;
break;
case CALL_SETTER:
secFlag = nsIXPCSecurityManager::HOOK_SET_PROPERTY;
secAction = nsIXPCSecurityManager::ACCESS_SET_PROPERTY;
break;
default:
NS_ASSERTION(0,"bad value");
return JS_FALSE;
}
jsval name = member->GetName();
nsIXPCSecurityManager* sm = xpcc->GetAppropriateSecurityManager(secFlag);
XPCWrappedNative* wrapper = ccx.GetWrapper();
if(sm && NS_FAILED(sm->CanAccess(secAction, &ccx, ccx,
ccx.GetFlattenedJSObject(),
wrapper->GetIdentityObject(),
wrapper->GetClassInfo(), name,
wrapper->GetSecurityInfoAddr())))
{
// the security manager vetoed. It should have set an exception.
return JS_FALSE;
}
IDispatch * pObj = reinterpret_cast<IDispatch*>
(ccx.GetTearOff()->GetNative());
PRUint32 args = member->GetParamCount();
uintN err;
// Make sure setter has one argument
if(mode == CALL_SETTER)
args = 1;
// Allow for optional parameters. We'll let COM handle the error if there
// are not enough parameters
if(argc < args)
args = argc;
XPCDispParams * params = new XPCDispParams(args);
jsval val;
// If this is a setter, we just need to convert the first parameter
if(mode == CALL_SETTER)
{
params->SetNamedPropID();
if(!XPCDispConvert::JSToCOM(ccx, argv[0], params->GetParamRef(0), err))
{
delete params;
return ThrowBadParam(err, 0, ccx);
}
}
else if(mode != CALL_GETTER) // This is a function
{
// Convert the arguments to the function
for(PRUint32 index = 0; index < args; ++index)
{
const XPCDispInterface::Member::ParamInfo & paramInfo = member->GetParamInfo(index);
if(paramInfo.IsIn())
{
val = argv[index];
if(paramInfo.IsOut())
{
if(JSVAL_IS_PRIMITIVE(val) ||
!OBJ_GET_PROPERTY(ccx, JSVAL_TO_OBJECT(val),
rt->GetStringID(XPCJSRuntime::IDX_VALUE),
&val))
{
delete params;
return ThrowBadParam(NS_ERROR_XPC_NEED_OUT_OBJECT, index, ccx);
}
paramInfo.InitializeOutputParam(params->GetOutputBuffer(index), params->GetParamRef(index));
}
if(!XPCDispConvert::JSToCOM(ccx, val, params->GetParamRef(index), err, paramInfo.IsOut()))
{
delete params;
return ThrowBadParam(err, index, ccx);
}
}
else
{
paramInfo.InitializeOutputParam(params->GetOutputBuffer(index), params->GetParamRef(index));
}
}
}
// If this is a parameterized property
if(member->IsParameterizedProperty())
{
// We need to get a parameterized property object to return to JS
// NewInstance takes ownership of params
if(XPCDispParamPropJSClass::NewInstance(ccx, wrapper,
member->GetDispID(),
params, &val))
{
ccx.SetRetVal(val);
if(!JS_IdToValue(ccx, 1, &val))
{
// This shouldn't fail
NS_ERROR("JS_IdToValue failed in XPCDispParamPropJSClass::NewInstance");
return JS_FALSE;
}
JS_SetCallReturnValue2(ccx, val);
return JS_TRUE;
}
// NewInstance would only fail if there was an out of memory problem
JS_ReportOutOfMemory(ccx);
delete params;
return JS_FALSE;
}
JSBool retval = Dispatch(ccx, pObj, member->GetDispID(), mode, params, &val, member, rt);
if(retval && mode == CALL_SETTER)
{
ccx.SetRetVal(argv[0]);
}
else
{
ccx.SetRetVal(val);
}
delete params;
return retval;
}