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eaglercraft-builds/EaglercraftX_1.8_Desktop_Runtime/RTWebViewClient.html

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Update to EaglercraftX 1.8 u37
2024-09-21 22:52:19 -07:00
<!DOCTYPE html>
<!--
Copyright (c) 2024 lax1dude. All Rights Reserved.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
-->
<html style="width:100%;height:100%;">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Eaglercraft Desktop Runtime</title>
<link type="image/png" rel="shortcut icon" id="vigg" href="data:image/png;base64,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" />
<script type="text/javascript">
"use strict";
(function() {
var webSocketURI = "${client_websocket_uri}";
if(webSocketURI === ("$" + "{client_websocket_uri}")) {
alert("Don't open this file in your browser");
window.addEventListener("load", function() {
document.body.innerHTML = "<p style=\"text-align:center;\">cunt</p>";
});
return;
}
var eaglercraftXOpts = {eaglercraftXOpts};
var cspAttrSupport = false;
var checkSupport = function() {
if(eaglercraftXOpts.forceWebViewSupport) {
cspAttrSupport = true;
return true;
}else {
var tempIFrameElement = document.createElement("iframe");
cspAttrSupport = eaglercraftXOpts.enableWebViewCSP && (typeof tempIFrameElement.csp === "string");
return (typeof tempIFrameElement.allow === "string") && (typeof tempIFrameElement.sandbox === "object");
}
};
var supported = false;
try {
supported = checkSupport();
}catch(ex) {
supported = false;
}
console.log("CSP attribute support detected as " + cspAttrSupport);
if(!supported) {
console.error("Required IFrame safety features are not supported!");
window.addEventListener("load", function() {
document.getElementById("view_loading").style.display = "none";
document.getElementById("view_safety_error").style.display = "block";
});
return;
}
var websocketInstance = null;
var hasOpened = false;
var webviewOptions = null;
var webviewResetSerial = 0;
var hasErrored = false;
var hasRegisteredOnMsgHandler = false;
var currentMessageHandler = null;
var currentIFrame = null;
var currentMessageChannelName = null;
var elements = {};
var loadElements = function() {
var jsel = document.getElementsByClassName("__jsel");
for(var i = 0; i < jsel.length; ++i) {
var el = jsel[i];
if(el.id.length > 0) {
elements[el.id] = el;
}
}
};
function loadEagtekIcon() {
var faviconSrc = document.getElementById("vigg").href;
var imgElements = document.getElementsByClassName("eagtek_icon");
for(var i = 0; i < imgElements.length; ++i) {
imgElements[i].src = faviconSrc;
}
}
function setupElementListeners() {
elements.button_allow.addEventListener("click", function() {
if(websocketInstance !== null) {
if(elements.chkbox_remember.checked) {
websocketInstance.send(JSON.stringify({$:7,perm:"ALLOW"}));
}
beginShowingDirect();
}
});
elements.button_block.addEventListener("click", function() {
if(websocketInstance !== null) {
if(elements.chkbox_remember.checked) {
websocketInstance.send(JSON.stringify({$:7,perm:"BLOCK"}));
}
beginShowingContentBlocked();
}
});
elements.button_re_evaluate.addEventListener("click", function() {
if(websocketInstance !== null) {
websocketInstance.send(JSON.stringify({$:7,perm:"NOT_SET"}));
beginShowingEnableJavaScript();
}
});
}
window.specialHack = function() {
if(websocketInstance !== null) {
websocketInstance.send(JSON.stringify({$:7,perm:"NOT_SET"}));
}
};
var handleHandshake = function(pkt) {
webviewOptions = {};
webviewOptions.contentMode = pkt.contentMode || "BLOB_BASED";
webviewOptions.fallbackTitle = pkt.fallbackTitle || "Server Info";
document.title = webviewOptions.fallbackTitle + " - Eaglercraft Desktop Runtime";
webviewOptions.scriptEnabled = !!pkt.scriptEnabled;
webviewOptions.strictCSPEnable = !!pkt.strictCSPEnable || false;
webviewOptions.serverMessageAPIEnabled = !!pkt.serverMessageAPIEnabled;
webviewOptions.url = pkt.url;
webviewOptions.blob = pkt.blob;
webviewOptions.hasApprovedJS = pkt.hasApprovedJS || "NOT_SET";
if(webviewOptions.scriptEnabled) {
if(webviewOptions.hasApprovedJS === "NOT_SET") {
beginShowingEnableJavaScript();
}else if(webviewOptions.hasApprovedJS === "ALLOW") {
beginShowingDirect();
}else if(webviewOptions.hasApprovedJS === "BLOCK") {
beginShowingContentBlocked();
}else {
setErrored("Unknown JS permission state: " + webviewOptions.hasApprovedJS);
}
}else {
beginShowingDirect();
}
};
var handleServerError = function(pkt) {
console.error("Recieved error from server: " + pkt.msg);
setErrored(pkt.msg);
};
var handleServerWebViewStrMsg = function(pkt) {
var w;
if(currentMessageChannelName !== null && currentIFrame !== null && (w = currentIFrame.contentWindow) !== null) {
w.postMessage({ver:1,channel:currentMessageChannelName,type:"string",data:pkt.msg}, "*");
}else {
console.error("Server tried to send the WebView a message, but the message channel is not open!");
}
};
var handleServerWebViewBinMsg = function(arr) {
var w;
if(currentMessageChannelName !== null && currentIFrame !== null && (w = currentIFrame.contentWindow) !== null) {
w.postMessage({ver:1,channel:currentMessageChannelName,type:"binary",data:arr}, "*");
}else {
console.error("Server tried to send the WebView a message, but the message channel is not open!");
}
};
var hideAllViews = function() {
if(currentIFrame !== null) {
++webviewResetSerial;
if(currentIFrame.parentNode) currentIFrame.parentNode.removeChild(currentIFrame);
currentIFrame = null;
}
elements.view_loading.style.display = "none";
elements.view_iframe.style.display = "none";
elements.view_allow_javascript.style.display = "none";
elements.view_javascript_blocked.style.display = "none";
elements.view_safety_error.style.display = "none";
};
var setErrored = function(str) {
if(hasErrored) return;
hasErrored = true;
hideAllViews();
elements.loading_text.style.color = "#CC0000";
elements.loading_text.innerText = str;
elements.view_loading.style.display = "block";
if(websocketInstance !== null) {
websocketInstance.close();
websocketInstance = null;
}
};
var registerMessageHandler = function() {
if(!hasRegisteredOnMsgHandler) {
hasRegisteredOnMsgHandler = true;
window.addEventListener("message", function(evt) {
if(currentIFrame !== null && currentMessageHandler !== null && evt.source === currentIFrame.contentWindow) {
currentMessageHandler(evt);
}
});
}
};
var beginShowingDirect = function() {
if(hasErrored) return;
hideAllViews();
if(!eaglercraftXOpts.forceWebViewSupport) {
try {
currentIFrame = document.createElement("iframe");
currentIFrame.allow = "";
if(currentIFrame.allow != "") throw "Failed to set allow to \"\"";
currentIFrame.referrerPolicy = "strict-origin";
var requiredSandboxTokens = [ "allow-downloads" ];
if(webviewOptions.scriptEnabled) {
requiredSandboxTokens.push("allow-scripts");
requiredSandboxTokens.push("allow-pointer-lock");
}
currentIFrame.sandbox = requiredSandboxTokens.join(" ");
for(var i = 0; i < requiredSandboxTokens.length; ++i) {
if(!currentIFrame.sandbox.contains(requiredSandboxTokens[i])) {
throw ("Failed to set sandbox attribute: " + requiredSandboxTokens[i]);
}
}
var sbox = currentIFrame.sandbox;
for(var i = 0; i < sbox.length; ++i) {
if(!requiredSandboxTokens.includes(sbox.item(i))) {
throw ("Unknown sandbox attribute detected: " + sbox.item(i));
}
}
}catch(ex) {
if(typeof ex === "string") {
console.error("Caught safety error: " + ex);
beginShowingSafetyError();
}else {webviewOptions
console.error("Fatal error while creating iframe!");
console.error(ex);
setErrored("Fatal error while creating iframe!");
}
return;
}
}else {
currentIFrame = document.createElement("iframe");
try {
currentIFrame.allow = "";
}catch(ex) {
}
try {
currentIFrame.referrerPolicy = "strict-origin";
}catch(ex) {
}
try {
var sandboxTokens = [ "allow-downloads", "allow-same-origin" ];
if(webviewOptions.scriptEnabled) {
sandboxTokens.push("allow-scripts");
sandboxTokens.push("allow-pointer-lock");
}
currentIFrame.sandbox = sandboxTokens.join(" ");
}catch(ex) {
}
}
currentIFrame.credentialless = true;
currentIFrame.loading = "lazy";
var cspWarn = false;
if(webviewOptions.contentMode === "BLOB_BASED") {
if(cspAttrSupport && eaglercraftXOpts.enableWebViewCSP) {
if(typeof currentIFrame.csp === "string") {
var csp = "default-src 'none';";
var protos = (webviewOptions.strictCSPEnable ? "" : " http: https:");
if(webviewOptions.scriptEnabled) {
csp += (" script-src 'unsafe-eval' 'unsafe-inline' data: blob:" + protos + ";");
csp += (" style-src 'unsafe-eval' 'unsafe-inline' data: blob:" + protos + ";");
csp += (" img-src data: blob:" + protos + ";");
csp += (" font-src data: blob:" + protos + ";");
csp += (" child-src data: blob:" + protos + ";");
csp += (" frame-src data: blob:;");
csp += (" media-src data: mediastream: blob:" + protos + ";");
csp += (" connect-src data: blob:" + protos + ";");
csp += (" worker-src data: blob:" + protos + ";");
}else {
csp += (" style-src data: 'unsafe-inline'" + protos + ";");
csp += (" img-src data:" + protos + ";");
csp += (" font-src data:" + protos + ";");
csp += (" media-src data:" + protos + ";");
}
currentIFrame.csp = csp;
}else {
console.error("This browser does not support CSP attribute on iframes! (try Chrome)");
cspWarn = true;
}
}else {
cspWarn = true;
}
if(cspWarn && webviewOptions.strictCSPEnable) {
console.error("Strict CSP was requested for this webview, but that feature is not available!");
}
}else {
cspWarn = true;
}
currentIFrame.style.border = "none";
currentIFrame.style.backgroundColor = "white";
currentIFrame.style.width = "100%";
currentIFrame.style.height = "100%";
elements.view_iframe.appendChild(currentIFrame);
elements.view_iframe.style.display = "block";
if(webviewOptions.contentMode === "BLOB_BASED") {
currentIFrame.srcdoc = webviewOptions.blob;
}else {
currentIFrame.src = webviewOptions.url;
}
currentIFrame.focus();
if(webviewOptions.scriptEnabled && webviewOptions.serverMessageAPIEnabled) {
var resetSer = webviewResetSerial;
var curIFrame = currentIFrame;
registerMessageHandler();
currentMessageHandler = function(evt) {
if(resetSer === webviewResetSerial && curIFrame === currentIFrame) {
handleMessageRawFromFrame(evt.data);
}
};
}
};
var handleMessageRawFromFrame = function(obj) {
if(hasErrored) return;
if((typeof obj === "object") && (obj.ver === 1) && ((typeof obj.channel === "string") && obj.channel.length > 0)) {
if(typeof obj.open === "boolean") {
sendMessageEnToServer(obj.open, obj.channel);
return;
}else if(typeof obj.data === "string") {
sendMessageToServerStr(obj.channel, obj.data);
return;
}else if(obj.data instanceof ArrayBuffer) {
sendMessageToServerBin(obj.channel, obj.data);
return;
}
}
console.error("WebView sent an invalid message!");
};
var sendMessageEnToServer = function(messageChannelOpen, channelName) {
if(channelName.length > 255) {
console.error("WebView tried to " + (messageChannelOpen ? "open" : "close") + " a channel, but channel name is too long, max is 255 characters!");
return;
}
if(messageChannelOpen && currentMessageChannelName !== null) {
console.error("WebView tried to open channel, but a channel is already open!");
sendMessageEnToServer(false, currentMessageChannelName);
}
if(!messageChannelOpen && currentMessageChannelName !== null && currentMessageChannelName === channelName) {
console.error("WebView tried to close the wrong channel!");
}
if(!messageChannelOpen && currentMessageChannelName === null) {
console.error("WebView tried to close channel, but the channel is not open!");
return;
}
if(websocketInstance !== null) {
if(messageChannelOpen) {
websocketInstance.send(JSON.stringify({$:3,channel:channelName}));
console.log("WebView opened message channel to server: \"" + channelName + "\"");
currentMessageChannelName = channelName;
}else {
websocketInstance.send(JSON.stringify({$:4}));
console.log("WebView closed message channel to server: \"" + currentMessageChannelName + "\"");
currentMessageChannelName = null;
}
}else {
console.error("WebView tried to send a message, but no websocket is open!");
}
};
var sendMessageToServerStr = function(channelName, msg) {
if(channelName.length > 255) {
console.error("WebView tried to send a message packet, but channel name is too long, max is 255 characters!");
return;
}
if(channelName !== currentMessageChannelName) {
console.error("WebView tried to send a message packet, but the channel is not open!");
return;
}
if(websocketInstance !== null) {
websocketInstance.send(JSON.stringify({$:5,msg:msg}));
}else {
console.error("WebView tried to send a message, but no callback for sending packets is set!");
}
};
var sendMessageToServerBin = function(channelName, msg) {
if(channelName.length > 255) {
console.error("WebView tried to send a message packet, but channel name is too long, max is 255 characters!");
return;
}
if(channelName !== currentMessageChannelName) {
console.error("WebView tried to send a message packet, but the channel is not open!");
return;
}
if(websocketInstance !== null) {
websocketInstance.send(msg);
}else {
console.error("WebView tried to send a message, but no callback for sending packets is set!");
}
};
var beginShowingEnableJavaScript = function() {
if(hasErrored) return;
hideAllViews();
if(webviewOptions.contentMode !== "BLOB_BASED") {
elements.strict_csp_value.innerText = "Impossible";
elements.strict_csp_value.style.color = "red";
}else if(!cspAttrSupport || !eaglercraftXOpts.enableWebViewCSP) {
elements.strict_csp_value.innerText = "Unsupported";
elements.strict_csp_value.style.color = "red";
}else if(webviewOptions.strictCSPEnable) {
elements.strict_csp_value.innerText = "Enabled";
elements.strict_csp_value.style.color = "green";
}else {
elements.strict_csp_value.innerText = "Disabled";
elements.strict_csp_value.style.color = "red";
}
if(webviewOptions.serverMessageAPIEnabled) {
elements.message_api_value.innerText = "Enabled";
elements.message_api_value.style.color = "red";
}else {
elements.message_api_value.innerText = "Disabled";
elements.message_api_value.style.color = "green";
}
elements.view_allow_javascript.style.display = "block";
};
var beginShowingContentBlocked = function() {
if(hasErrored) return;
hideAllViews();
elements.view_javascript_blocked.style.display = "block";
};
var beginShowingSafetyError = function() {
if(hasErrored) return;
hasErrored = true;
hideAllViews();
elements.view_safety_error.style.display = "block";
};
window.addEventListener("load", function() {
loadElements();
loadEagtekIcon();
setupElementListeners();
websocketInstance = new WebSocket(webSocketURI);
websocketInstance.binaryType = "arraybuffer";
websocketInstance.addEventListener("open", function(evt) {
console.log("Connection to server opened");
hasOpened = true;
websocketInstance.send(JSON.stringify({$:0,cspSupport:cspAttrSupport}));
});
websocketInstance.addEventListener("message", function(evt) {
try {
if(typeof evt.data === "string") {
var pkt = JSON.parse(evt.data);
if(typeof pkt.$ !== "number") {
throw "Packet type is invalid";
}
if(webviewOptions === null) {
if(pkt.$ === 1) {
handleHandshake(pkt);
}else if(pkt.$ === 2) {
handleServerError(pkt);
}else {
throw "Unknown packet type " + pkt.$ + " for state handshake!"
}
}else {
if(pkt.$ === 2) {
handleServerError(pkt);
}else if(pkt.$ === 6) {
handleServerWebViewStrMsg(pkt);
}else {
throw "Unknown packet type " + pkt.$ + " for state open!"
}
}
}else {
handleServerWebViewBinMsg(evt.data);
}
}catch(ex) {
console.error("Caught exception processing message from server!");
console.error(ex);
}
});
websocketInstance.addEventListener("close", function(evt) {
websocketInstance = null;
setErrored("Connection to EaglercraftX client lost!");
});
websocketInstance.addEventListener("error", function(evt) {
console.error("WebSocket error: " + evt);
});
});
})();
</script>
</head>
<body style="margin:0px;width:100%;height:100%;overflow:hidden;font-family:sans-serif;user-select:none;">
<div id="view_loading" style="width:100%;height:100%;display:block;" class="__jsel">
<div style="padding-top:13vh;">
<h2 style="text-align:center;" id="loading_text" class="__jsel">Please Wait...</h2>
</div>
</div>
<div id="view_iframe" style="width:100%;height:100%;display:none;" class="__jsel">
</div>
<div id="view_allow_javascript" style="width:100%;height:100%;display:none;" class="__jsel">
<div style="padding-top:13vh;">
<div style="margin:auto;max-width:450px;border:6px double black;text-align:center;padding:20px;">
<h2><img width="32" height="32" style="vertical-align:middle;" class="eagtek_icon">&emsp;Allow JavaScript</h2>
<p style="font-family:monospace;text-decoration:underline;word-wrap:break-word;" id="target_url"></p>
<h4 style="line-height:1.4em;">Strict CSP: <span id="strict_csp_value" class="__jsel"></span>&ensp;|&ensp;Message API: <span id="message_api_value" class="__jsel"></span></h4>
<p><input id="chkbox_remember" type="checkbox" class="__jsel" checked> Remember my choice</p>
<p><button style="font-size:1.5em;" id="button_allow" class="__jsel">Allow</button>&emsp;<button style="font-size:1.5em;" id="button_block" class="__jsel">Block</button></p>
</div>
</div>
</div>
<div id="view_javascript_blocked" style="width:100%;height:100%;display:none;" class="__jsel">
<div style="padding-top:13vh;">
<h1 style="text-align:center;"><img width="48" height="48" style="vertical-align:middle;" class="eagtek_icon">&emsp;Content Blocked</h1>
<h4 style="text-align:center;">You chose to block JavaScript execution for this embed</h4>
<p style="text-align:center;"><button style="font-size:1.0em;" id="button_re_evaluate" class="__jsel">Re-evaluate</button></p>
</div>
</div>
<div id="view_safety_error" style="width:100%;height:100%;display:none;" class="__jsel">
<div style="padding-top:13vh;">
<h1 style="text-align:center;"><img width="48" height="48" style="vertical-align:middle;" class="eagtek_icon">&emsp;IFrame Safety Error</h1>
<h4 style="text-align:center;">The content cannot be displayed safely!</h4>
<h4 style="text-align:center;">Check console for more details</h4>
</div>
</div>
</body>
</html>
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