nsresult
nsDOMWorkerTimeout::ExpressionCallback::Run(nsDOMWorkerTimeout* aTimeout,
JSContext* aCx)
{
JSObject* global = JS_GetGlobalObject(aCx);
NS_ENSURE_TRUE(global, NS_ERROR_FAILURE);
JSPrincipals* principal = nsDOMWorkerSecurityManager::WorkerPrincipal();
NS_ENSURE_TRUE(principal, NS_ERROR_FAILURE);
JSString* expression = JS_ValueToString(aCx, mExpression);
NS_ENSURE_TRUE(expression, NS_ERROR_FAILURE);
jschar* string = JS_GetStringChars(expression);
NS_ENSURE_TRUE(string, NS_ERROR_FAILURE);
size_t stringLength = JS_GetStringLength(expression);
jsval rval;
PRBool success = JS_EvaluateUCScriptForPrincipals(aCx, global, principal,
string, stringLength,
mFileName.get(),
mLineNumber, &rval);
if (!success) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
JNIEXPORT jint JNICALL XPCOM_NATIVE(_1JS_1EvaluateUCScriptForPrincipals24)
(JNIEnv *env, jclass that, jbyteArray mozillaPath, jintLong arg0, jintLong arg1, jintLong arg2, jcharArray arg3, jint arg4, jbyteArray arg5, jint arg6, jintLong arg7)
{
jbyte *lpmozillaPath=NULL;
jchar *lparg3=NULL;
jbyte *lparg5=NULL;
jint rc = 0;
XPCOM_NATIVE_ENTER(env, that, _1JS_1EvaluateUCScriptForPrincipals24_FUNC);
if (mozillaPath) if ((lpmozillaPath = env->GetByteArrayElements(mozillaPath, NULL)) == NULL) goto fail;
if (arg3) if ((lparg3 = env->GetCharArrayElements(arg3, NULL)) == NULL) goto fail;
if (arg5) if ((lparg5 = env->GetByteArrayElements(arg5, NULL)) == NULL) goto fail;
/*
rc = (jint)JS_EvaluateUCScriptForPrincipals(arg0, arg1, arg2, lparg3, arg4, lparg5, arg6, arg7);
*/
{
/*
* As of XULRunner 24 an AutoCxPusher-derived instance must be used to push the current JS context
* on the stack, see https://bugzilla.mozilla.org/show_bug.cgi?id=911161. In earlier supported
* XULRunner releases this was done with an nsIJSContextStack. This JSAutoCompartment creation must
* happen on the execution stack, and therefore cannot be invoked dynamically.
*/
JSAutoCompartment ac((JSContext*)arg0, (JSObject*)arg1);
#ifdef _WIN32
/*
* VC++6.0 cannot create a lookup symbol for JS_EvaluateUCScriptForPrincipals() that matches the symbol
* exported by XULRunner 24's mozjs library because VC++6.0 does not define wchar_t as a native type.
* The workaround is to dynamically look up the function's mangled name and invoke it directly.
*/
static int initialized = 0;
static FARPROC fp = NULL;
if (!initialized) {
HMODULE hm = LoadLibrary((const char *)lpmozillaPath);
if (hm) {
fp = GetProcAddress(hm, "?JS_EvaluateUCScriptForPrincipals@@YAHPAUJSContext@@PAVJSObject@@PAUJSPrincipals@@PB_WIPBDIPAVValue@JS@@@Z");
}
initialized = 1;
}
if (fp) {
rc = (jint)((jint (*)(jintLong, jintLong, jintLong, jchar *, jint, jbyte *, jint, jintLong))fp)(arg0, arg1, arg2, lparg3, arg4, lparg5, arg6, arg7);
}
#else
rc = (jint)JS_EvaluateUCScriptForPrincipals((JSContext*)arg0, (JSObject*)arg1, (JSPrincipals*)arg2, (const jschar *)lparg3, arg4, (const char*)lparg5, arg6, (JS::Value*)arg7);
#endif /* _WIN32 */
}
fail:
if (arg5 && lparg5) env->ReleaseByteArrayElements(arg5, lparg5, 0);
if (arg3 && lparg3) env->ReleaseCharArrayElements(arg3, lparg3, 0);
if (mozillaPath && lpmozillaPath) env->ReleaseByteArrayElements(mozillaPath, lpmozillaPath, 0);
XPCOM_NATIVE_EXIT(env, that, _1JS_1EvaluateUCScriptForPrincipals_FUNC);
return rc;
}
/*
* Class: netscape_javascript_JSObject
* Method: eval
* Signature: (Ljava/lang/String;)Ljava/lang/Object;
*/
JNIEXPORT jobject JNICALL
Java_netscape_javascript_JSObject_eval(JNIEnv *jEnv,
jobject java_wrapper_obj,
jstring eval_jstr)
{
const char *codebase;
JSPrincipals *principals;
JSContext *cx = NULL;
JSBool eval_succeeded;
JSObject *js_obj;
jsval js_val;
int dummy_cost;
JSBool dummy_bool;
const jchar *eval_ucs2;
jsize eval_len;
JSErrorReporter saved_reporter;
jboolean is_copy;
jobject result;
JSJavaThreadState *jsj_env;
jsj_env = jsj_enter_js(jEnv, NULL, java_wrapper_obj, &cx, &js_obj, &saved_reporter, NULL, 0, NULL);
if (!jsj_env)
return NULL;
result = NULL;
eval_ucs2 = NULL;
if (!eval_jstr) {
JS_ReportErrorNumber(cx, jsj_GetErrorMessage, NULL,
JSJMSG_NULL_EVAL_ARG);
goto done;
}
/* Get the string to eval as raw Unicode characters */
eval_ucs2 = (*jEnv)->GetStringChars(jEnv, eval_jstr, &is_copy);
if (!eval_ucs2) {
JS_ASSERT(0);
goto done;
}
eval_len = (*jEnv)->GetStringLength(jEnv, eval_jstr);
/* Set up security stuff */
principals = NULL;
if (JSJ_callbacks && JSJ_callbacks->get_JSPrincipals_from_java_caller)
principals = JSJ_callbacks->get_JSPrincipals_from_java_caller(jEnv, cx, NULL, 0, NULL);
codebase = principals ? principals->codebase : NULL;
/* Have the JS engine evaluate the unicode string */
eval_succeeded = JS_EvaluateUCScriptForPrincipals(cx, js_obj, principals,
eval_ucs2, eval_len,
codebase, 0, &js_val);
if (!eval_succeeded)
goto done;
/* Convert result to a subclass of java.lang.Object */
jsj_ConvertJSValueToJavaObject(cx, jEnv, js_val, jsj_get_jlObject_descriptor(cx, jEnv),
&dummy_cost, &result, &dummy_bool);
done:
if (eval_ucs2)
(*jEnv)->ReleaseStringChars(jEnv, eval_jstr, eval_ucs2);
if (!jsj_exit_js(cx, jsj_env, saved_reporter))
return NULL;
return result;
}
NS_METHOD
nsCLiveconnect::Eval(JNIEnv *jEnv, lcjsobject obj, const jchar *script, jsize length, void* principalsArray[],
int numPrincipals, nsISupports *securitySupports, jobject *pjobj)
{
if(jEnv == NULL || obj == 0)
{
return NS_ERROR_FAILURE;
}
JSJavaThreadState *jsj_env = NULL;
JSObjectHandle *handle = (JSObjectHandle*)obj;
JSObject *js_obj = handle->js_obj;
JSContext *cx = NULL;
jsval js_val;
int dummy_cost = 0;
JSBool dummy_bool = PR_FALSE;
JSErrorReporter saved_state = NULL;
jobject result = NULL;
const char *codebase = NULL;
JSPrincipals *principals = NULL;
JSBool eval_succeeded = PR_FALSE;
jsj_env = jsj_enter_js(jEnv, mJavaClient, NULL, &cx, NULL, &saved_state, principalsArray, numPrincipals, securitySupports);
if (!jsj_env)
return NS_ERROR_FAILURE;
result = NULL;
AutoPushJSContext autopush(securitySupports, cx);
if (NS_FAILED(autopush.ResultOfPush()))
goto done;
if (!script) {
JS_ReportError(cx, "illegal null string eval argument");
goto done;
}
/* Set up security stuff */
if (JSJ_callbacks && JSJ_callbacks->get_JSPrincipals_from_java_caller)
principals = JSJ_callbacks->get_JSPrincipals_from_java_caller(jEnv, cx, principalsArray, numPrincipals, securitySupports);
codebase = principals ? principals->codebase : NULL;
/* Have the JS engine evaluate the unicode string */
eval_succeeded = JS_EvaluateUCScriptForPrincipals(cx, js_obj, principals,
script, length,
codebase, 0, &js_val);
if (!eval_succeeded)
goto done;
/* Convert result to a subclass of java.lang.Object */
jsj_ConvertJSValueToJavaObject(cx, jEnv, js_val, jsj_get_jlObject_descriptor(cx, jEnv),
&dummy_cost, &result, &dummy_bool);
done:
if (principals)
JSPRINCIPALS_DROP(cx, principals);
if (!jsj_exit_js(cx, jsj_env, saved_state))
return NS_ERROR_FAILURE;
*pjobj = result;
return NS_OK;
}