Google Web Toolkit: apply content secure policy using script-src 'self' and object-src 'self' without unsafe-inline and unsafe-eval

Tuesday, March 5, 2024

apply content secure policy using script-src 'self' and object-src 'self' without unsafe-inline and unsafe-eval

Hi Team

Hope you are doing well

i am using GWT version 2.8.2

i am trying to apply content secure policy in GWT using script-src 'self' and object-src 'self' without unsafe-inline and unsafe-eval but i am getting below

setupInstallLocation @ AllDec.nocache.js?timeStamp=1709618887261:71
AllDec.nocache.js?timeStamp=1709618887261:71 Refused to run the JavaScript URL because it violates the following Content Security Policy directive: "script-src 'self' 'nonce-alldec202403040001' 'nonce-alldec202403040002' 'nonce-trwFrame-202403040001' 'nonce-footer-202403040001' 'nonce-menu202403040001' 'nonce-Header2022092604' 'nonce-Header2022092603' 'nonce-Header2022092602' 'nonce-Header2022092601' 'nonce-header-momentjs-20221027' 'nonce-header-inline-2022102701' 'nonce-header-inline-2022102702'". Either the 'unsafe-inline' keyword, a hash ('sha256-...'), or a nonce ('nonce-...') is required to enable inline execution. Note that hashes do not apply to event handlers, style attributes and javascript: navigations unless the 'unsafe-hashes' keyword is present.

my code logic with different approaches and none of them work for me

<script type="text/javascript" language="javascript" src="../trw4/alldec/AllDec.nocache.js?timeStamp=<%= "" + new java.util.Date().getTime() %>" nonce="alldec202403040001"></script>

<script type="text/javascript" language="javascript" src="../trw4/alldec/AllDec.nocache.js?timeStamp=<%= "" + new java.util.Date().getTime() %>" nonce="nonce-alldec202403040001"></script>

<script type="text/javascript" language="javascript" src="../trw4/alldec/AllDec.nocache.js?nonce=alldec202403040001&timeStamp=<%= "" + new java.util.Date().getTime() %>" nonce="alldec202403040001"></script>

<script type="text/javascript" language="javascript" src="../trw4/alldec/AllDec.nocache.js?nonce=nonce-alldec202403040001&timeStamp=<%= "" + new java.util.Date().getTime() %>" nonce="nonce-alldec202403040001"></script>

i tried this as well but not working

String scriptUrl = "../trw4/alldec/AllDec.nocache.js?nonce=alldec202403040001"
ScriptInjector.fromUrl(scriptUrl)
.setWindow(ScriptInjector.TOP_WINDOW)
.inject();

Need your valuable inputs to achieve content secure policy in GWT using script-src 'self' and object-src 'self' without unsafe-inline and unsafe-eval

i suspect the inline java script code is not allowing to apply script-src 'self' and object-src 'self' without unsafe-inline and unsafe-eval

here is my AllDec.nocache.js

function AllDec(){
var $intern_0 = 'bootstrap', $intern_1 = 'begin', $intern_2 = 'gwt.codesvr.AllDec=', $intern_3 = 'gwt.codesvr=', $intern_4 = 'AllDec', $intern_5 = 'startup', $intern_6 = 'DUMMY', $intern_7 = 0, $intern_8 = 1, $intern_9 = 'iframe', $intern_10 = 'javascript:""', $intern_11 = 'position:absolute; width:0; height:0; border:none; left: -1000px;', $intern_12 = ' top: -1000px;', $intern_13 = 'CSS1Compat', $intern_14 = '<!doctype html>', $intern_15 = '', $intern_16 = '<html><head><\/head><body><\/body><\/html>', $intern_17 = 'undefined', $intern_18 = 'readystatechange', $intern_19 = 10, $intern_20 = 'script', $intern_21 = 'javascript', $intern_22 = 'Failed to load ', $intern_23 = 'moduleStartup', $intern_24 = 'scriptTagAdded', $intern_25 = 'moduleRequested', $intern_26 = 'meta', $intern_27 = 'name', $intern_28 = 'AllDec::', $intern_29 = '::', $intern_30 = 'gwt:property', $intern_31 = 'content', $intern_32 = '=', $intern_33 = 'gwt:onPropertyErrorFn', $intern_34 = 'Bad handler "', $intern_35 = '" for "gwt:onPropertyErrorFn"', $intern_36 = 'gwt:onLoadErrorFn', $intern_37 = '" for "gwt:onLoadErrorFn"', $intern_38 = '#', $intern_39 = '?', $intern_40 = '/', $intern_41 = 'img', $intern_42 = 'clear.cache.gif', $intern_43 = 'baseUrl', $intern_44 = 'AllDec.nocache.js', $intern_45 = 'base', $intern_46 = '//', $intern_47 = 'user.agent', $intern_48 = 'webkit', $intern_49 = 'safari', $intern_50 = 'msie', $intern_51 = 11, $intern_52 = 'ie10', $intern_53 = 9, $intern_54 = 'ie9', $intern_55 = 8, $intern_56 = 'ie8', $intern_57 = 'gecko', $intern_58 = 'gecko1_8', $intern_59 = 2, $intern_60 = 3, $intern_61 = 4, $intern_62 = 'selectingPermutation', $intern_63 = 'AllDec.devmode.js', $intern_64 = '0EF85E4190AC447E05897F96A6F99F47', $intern_65 = '4907B969BA14903A87055E501F608F15', $intern_66 = '9EE4E7BDFF866FF07E4C05A26DDA5C46', $intern_67 = 'CDC1ED083BDDEDA5A079F2A66A48A35D', $intern_68 = 'FD596E46A331AE61B689F91C1973282E', $intern_69 = ':', $intern_70 = '.cache.js', $intern_71 = 'link', $intern_72 = 'rel', $intern_73 = 'stylesheet', $intern_74 = 'href', $intern_75 = 'head', $intern_76 = 'loadExternalRefs', $intern_77 = 'Trw4gui.css', $intern_78 = 'end', $intern_79 = 'http:', $intern_80 = 'file:', $intern_81 = '_gwt_dummy_', $intern_82 = '__gwtDevModeHook:AllDec', $intern_83 = 'Ignoring non-whitelisted Dev Mode URL: ', $intern_84 = ':moduleBase';
var $wnd = window;
var $doc = document;
sendStats($intern_0, $intern_1);
function isHostedMode(){
var query = $wnd.location.search;
return query.indexOf($intern_2) != -1 || query.indexOf($intern_3) != -1;
}

function sendStats(evtGroupString, typeString){
if ($wnd.__gwtStatsEvent) {
$wnd.__gwtStatsEvent({moduleName:$intern_4, sessionId:$wnd.__gwtStatsSessionId, subSystem:$intern_5, evtGroup:evtGroupString, millis:(new Date).getTime(), type:typeString});
}
}

AllDec.__sendStats = sendStats;
AllDec.__moduleName = $intern_4;
AllDec.__errFn = null;
AllDec.__moduleBase = $intern_6;
AllDec.__softPermutationId = $intern_7;
AllDec.__computePropValue = null;
AllDec.__getPropMap = null;
AllDec.__installRunAsyncCode = function(){
}
;
AllDec.__gwtStartLoadingFragment = function(){
return null;
}
;
AllDec.__gwt_isKnownPropertyValue = function(){
return false;
}
;
AllDec.__gwt_getMetaProperty = function(){
return null;
}
;
var __propertyErrorFunction = null;
var activeModules = $wnd.__gwt_activeModules = $wnd.__gwt_activeModules || {};
activeModules[$intern_4] = {moduleName:$intern_4};
AllDec.__moduleStartupDone = function(permProps){
var oldBindings = activeModules[$intern_4].bindings;
activeModules[$intern_4].bindings = function(){
var props = oldBindings?oldBindings():{};
var embeddedProps = permProps[AllDec.__softPermutationId];
for (var i = $intern_7; i < embeddedProps.length; i++) {
var pair = embeddedProps[i];
props[pair[$intern_7]] = pair[$intern_8];
}
return props;
}
;
}
;
var frameDoc;
function getInstallLocationDoc(){
setupInstallLocation();
return frameDoc;
}

function setupInstallLocation(){
if (frameDoc) {
return;
}
var scriptFrame = $doc.createElement($intern_9);
scriptFrame.src = $intern_10;
scriptFrame.id = $intern_4;
scriptFrame.style.cssText = $intern_11 + $intern_12;
scriptFrame.tabIndex = -1;
$doc.body.appendChild(scriptFrame);
frameDoc = scriptFrame.contentDocument;
if (!frameDoc) {
frameDoc = scriptFrame.contentWindow.document;
}
frameDoc.open();
var doctype = document.compatMode == $intern_13?$intern_14:$intern_15;
frameDoc.write(doctype + $intern_16);
frameDoc.close();
}

function installScript(filename){
function setupWaitForBodyLoad(callback){
function isBodyLoaded(){
if (typeof $doc.readyState == $intern_17) {
return typeof $doc.body != $intern_17 && $doc.body != null;
}
return /loaded|complete/.test($doc.readyState);
}

var bodyDone = isBodyLoaded();
if (bodyDone) {
callback();
return;
}
function checkBodyDone(){
if (!bodyDone) {
if (!isBodyLoaded()) {
return;
}
bodyDone = true;
callback();
if ($doc.removeEventListener) {
$doc.removeEventListener($intern_18, checkBodyDone, false);
}
if (onBodyDoneTimerId) {
clearInterval(onBodyDoneTimerId);
}
}
}

if ($doc.addEventListener) {
$doc.addEventListener($intern_18, checkBodyDone, false);
}
var onBodyDoneTimerId = setInterval(function(){
checkBodyDone();
}
, $intern_19);
}

function installCode(code_0){
var doc = getInstallLocationDoc();
var docbody = doc.body;
var script = doc.createElement($intern_20);
script.language = $intern_21;
script.src = code_0;
if (AllDec.__errFn) {
script.onerror = function(){
AllDec.__errFn($intern_4, new Error($intern_22 + code_0));
}
;
}
docbody.appendChild(script);
sendStats($intern_23, $intern_24);
}

sendStats($intern_23, $intern_25);
setupWaitForBodyLoad(function(){
installCode(filename);
}
);
}

AllDec.__startLoadingFragment = function(fragmentFile){
return computeUrlForResource(fragmentFile);
}
;
AllDec.__installRunAsyncCode = function(code_0){
var doc = getInstallLocationDoc();
var docbody = doc.body;
var script = doc.createElement($intern_20);
script.language = $intern_21;
script.text = code_0;
docbody.appendChild(script);
}
;
function processMetas(){
var metaProps = {};
var propertyErrorFunc;
var onLoadErrorFunc;
var metas = $doc.getElementsByTagName($intern_26);
for (var i = $intern_7, n = metas.length; i < n; ++i) {
var meta = metas[i], name_0 = meta.getAttribute($intern_27), content;
if (name_0) {
name_0 = name_0.replace($intern_28, $intern_15);
if (name_0.indexOf($intern_29) >= $intern_7) {
continue;
}
if (name_0 == $intern_30) {
content = meta.getAttribute($intern_31);
if (content) {
var value_0, eq = content.indexOf($intern_32);
if (eq >= $intern_7) {
name_0 = content.substring($intern_7, eq);
value_0 = content.substring(eq + $intern_8);
}
else {
name_0 = content;
value_0 = $intern_15;
}
metaProps[name_0] = value_0;
}
}
else if (name_0 == $intern_33) {
content = meta.getAttribute($intern_31);
if (content) {
try {
propertyErrorFunc = eval(content);
}
catch (e) {
alert($intern_34 + content + $intern_35);
}
}
}
else if (name_0 == $intern_36) {
content = meta.getAttribute($intern_31);
if (content) {
try {
onLoadErrorFunc = eval(content);
}
catch (e) {
alert($intern_34 + content + $intern_37);
}
}
}
}
}
__gwt_getMetaProperty = function(name_0){
var value_0 = metaProps[name_0];
return value_0 == null?null:value_0;
}
;
__propertyErrorFunction = propertyErrorFunc;
AllDec.__errFn = onLoadErrorFunc;
}

function computeScriptBase(){
function getDirectoryOfFile(path){
var hashIndex = path.lastIndexOf($intern_38);
if (hashIndex == -1) {
hashIndex = path.length;
}
var queryIndex = path.indexOf($intern_39);
if (queryIndex == -1) {
queryIndex = path.length;
}
var slashIndex = path.lastIndexOf($intern_40, Math.min(queryIndex, hashIndex));
return slashIndex >= $intern_7?path.substring($intern_7, slashIndex + $intern_8):$intern_15;
}

function ensureAbsoluteUrl(url_0){
if (url_0.match(/^\w+:\/\//)) {
}
else {
var img = $doc.createElement($intern_41);
img.src = url_0 + $intern_42;
url_0 = getDirectoryOfFile(img.src);
}
return url_0;
}

function tryMetaTag(){
var metaVal = __gwt_getMetaProperty($intern_43);
if (metaVal != null) {
return metaVal;
}
return $intern_15;
}

function tryNocacheJsTag(){
var scriptTags = $doc.getElementsByTagName($intern_20);
for (var i = $intern_7; i < scriptTags.length; ++i) {
if (scriptTags[i].src.indexOf($intern_44) != -1) {
return getDirectoryOfFile(scriptTags[i].src);
}
}
return $intern_15;
}

function tryBaseTag(){
var baseElements = $doc.getElementsByTagName($intern_45);
if (baseElements.length > $intern_7) {
return baseElements[baseElements.length - $intern_8].href;
}
return $intern_15;
}

function isLocationOk(){
var loc = $doc.location;
return loc.href == loc.protocol + $intern_46 + loc.host + loc.pathname + loc.search + loc.hash;
}

var tempBase = tryMetaTag();
if (tempBase == $intern_15) {
tempBase = tryNocacheJsTag();
}
if (tempBase == $intern_15) {
tempBase = tryBaseTag();
}
if (tempBase == $intern_15 && isLocationOk()) {
tempBase = getDirectoryOfFile($doc.location.href);
}
tempBase = ensureAbsoluteUrl(tempBase);
return tempBase;
}

function computeUrlForResource(resource){
if (resource.match(/^\//)) {
return resource;
}
if (resource.match(/^[a-zA-Z]+:\/\//)) {
return resource;
}
return AllDec.__moduleBase + resource;
}

function getCompiledCodeFilename(){
var answers = [];
var softPermutationId = $intern_7;
function unflattenKeylistIntoAnswers(propValArray, value_0){
var answer = answers;
for (var i = $intern_7, n = propValArray.length - $intern_8; i < n; ++i) {
answer = answer[propValArray[i]] || (answer[propValArray[i]] = []);
}
answer[propValArray[n]] = value_0;
}

var values = [];
var providers = [];
function computePropValue(propName){
var value_0 = providers[propName](), allowedValuesMap = values[propName];
if (value_0 in allowedValuesMap) {
return value_0;
}
var allowedValuesList = [];
for (var k in allowedValuesMap) {
allowedValuesList[allowedValuesMap[k]] = k;
}
if (__propertyErrorFunction) {
__propertyErrorFunction(propName, allowedValuesList, value_0);
}
throw null;
}

providers[$intern_47] = function(){
var ua = navigator.userAgent.toLowerCase();
var docMode = $doc.documentMode;
if (function(){
return ua.indexOf($intern_48) != -1;
}
())
return $intern_49;
if (function(){
return ua.indexOf($intern_50) != -1 && (docMode >= $intern_19 && docMode < $intern_51);
}
())
return $intern_52;
if (function(){
return ua.indexOf($intern_50) != -1 && (docMode >= $intern_53 && docMode < $intern_51);
}
())
return $intern_54;
if (function(){
return ua.indexOf($intern_50) != -1 && (docMode >= $intern_55 && docMode < $intern_51);
}
())
return $intern_56;
if (function(){
return ua.indexOf($intern_57) != -1 || docMode >= $intern_51;
}
())
return $intern_58;
return $intern_15;
}
;
values[$intern_47] = {'gecko1_8':$intern_7, 'ie10':$intern_8, 'ie8':$intern_59, 'ie9':$intern_60, 'safari':$intern_61};
__gwt_isKnownPropertyValue = function(propName, propValue){
return propValue in values[propName];
}
;
AllDec.__getPropMap = function(){
var result = {};
for (var key in values) {
if (values.hasOwnProperty(key)) {
result[key] = computePropValue(key);
}
}
return result;
}
;
AllDec.__computePropValue = computePropValue;
$wnd.__gwt_activeModules[$intern_4].bindings = AllDec.__getPropMap;
sendStats($intern_0, $intern_62);
if (isHostedMode()) {
return computeUrlForResource($intern_63);
}
var strongName;
try {
unflattenKeylistIntoAnswers([$intern_56], $intern_64);
unflattenKeylistIntoAnswers([$intern_52], $intern_65);
unflattenKeylistIntoAnswers([$intern_54], $intern_66);
unflattenKeylistIntoAnswers([$intern_58], $intern_67);
unflattenKeylistIntoAnswers([$intern_49], $intern_68);
strongName = answers[computePropValue($intern_47)];
var idx = strongName.indexOf($intern_69);
if (idx != -1) {
softPermutationId = parseInt(strongName.substring(idx + $intern_8), $intern_19);
strongName = strongName.substring($intern_7, idx);
}
}
catch (e) {
}
AllDec.__softPermutationId = softPermutationId;
return computeUrlForResource(strongName + $intern_70);
}

function loadExternalStylesheets(){
if (!$wnd.__gwt_stylesLoaded) {
$wnd.__gwt_stylesLoaded = {};
}
function installOneStylesheet(stylesheetUrl){
if (!__gwt_stylesLoaded[stylesheetUrl]) {
var l = $doc.createElement($intern_71);
l.setAttribute($intern_72, $intern_73);
l.setAttribute($intern_74, computeUrlForResource(stylesheetUrl));
$doc.getElementsByTagName($intern_75)[$intern_7].appendChild(l);
__gwt_stylesLoaded[stylesheetUrl] = true;
}
}

sendStats($intern_76, $intern_1);
installOneStylesheet($intern_77);
sendStats($intern_76, $intern_78);
}

processMetas();
AllDec.__moduleBase = computeScriptBase();
activeModules[$intern_4].moduleBase = AllDec.__moduleBase;
var filename = getCompiledCodeFilename();
if ($wnd) {
var devModePermitted = !!($wnd.location.protocol == $intern_79 || $wnd.location.protocol == $intern_80);
$wnd.__gwt_activeModules[$intern_4].canRedirect = devModePermitted;
function supportsSessionStorage(){
var key = $intern_81;
try {
$wnd.sessionStorage.setItem(key, key);
$wnd.sessionStorage.removeItem(key);
return true;
}
catch (e) {
return false;
}
}

if (devModePermitted && supportsSessionStorage()) {
var devModeKey = $intern_82;
var devModeUrl = $wnd.sessionStorage[devModeKey];
if (!/^http:\/\/(localhost|127\.0\.0\.1)(:\d+)?\/.*$/.test(devModeUrl)) {
if (devModeUrl && (window.console && console.log)) {
console.log($intern_83 + devModeUrl);
}
devModeUrl = $intern_15;
}
if (devModeUrl && !$wnd[devModeKey]) {
$wnd[devModeKey] = true;
$wnd[devModeKey + $intern_84] = computeScriptBase();
var devModeScript = $doc.createElement($intern_20);
devModeScript.src = devModeUrl;
var head = $doc.getElementsByTagName($intern_75)[$intern_7];
head.insertBefore(devModeScript, head.firstElementChild || head.children[$intern_7]);
return false;
}
}
}
loadExternalStylesheets();
sendStats($intern_0, $intern_78);
installScript(filename);
return true;
}

AllDec.succeeded = AllDec();

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