コード例 #1
0
NS_IMETHODIMP
nsXPConnect::MarkErrorUnreported(JSContext *cx)
{
    XPCContext *xpcc = XPCContext::GetXPCContext(cx);
    xpcc->MarkErrorUnreported();
    return NS_OK;
}
コード例 #2
0
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;
}
コード例 #3
0
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;
}
コード例 #4
0
/* 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;
}
コード例 #5
0
/* 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;
}
コード例 #6
0
ファイル: xpcjsid.cpp プロジェクト: lofter2011/Icefox
/* 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;
}
コード例 #7
0
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
}
コード例 #8
0
/* 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;
}
コード例 #9
0
ファイル: XPCDispObject.cpp プロジェクト: dimitrianoudi/Jaxer
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;
}