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ELECTRON: Fix error with symbolic link (#1427)

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catloversg 2024-06-26 06:09:22 +07:00 committed by GitHub
parent fd8eae5cf5
commit cef789eb7c
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3 changed files with 42 additions and 7 deletions
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30
electron/fileError.html Normal file
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@ -0,0 +1,30 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Bitburner</title>
<style>
body {
background-color: black;
color: #0c0;
margin: 0;
}
div {
height: 100vh;
display: flex;
justify-content: center;
align-items: center;
}
h1 {
text-align: center;
}
</style>
</head>
<body>
<div>
<h1>Attempts to access local files outside the normal game environment will be directed to this file.</h1>
</div>
</body>
</html>

1
electron/fileError.txt
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@ -1 +0,0 @@
Attempts to access local files outside the normal game environment will be directed to this file.

18
electron/main.js
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@ -29,6 +29,7 @@ const debounce = require("lodash/debounce");
const Store = require("electron-store");
const store = new Store();
const path = require("path");
const { realpathSync } = require("fs");
const { fileURLToPath } = require("url");
log.transports.file.level = store.get("file-log-level", "info");
@ -201,13 +202,18 @@ app.on("ready", async () => {
// Intercept file protocol requests and only let valid requests through
protocol.interceptFileProtocol("file", ({ url, method }, callback) => {
const filePath = fileURLToPath(url);
const relativePath = path.relative(__dirname, filePath);
//only provide html files in same directory, or anything in dist
if ((method === "GET" && relativePath.startsWith("dist")) || relativePath.match(/^[a-zA-Z-_]*\.html/)) {
return callback(filePath);
const realPath = realpathSync(filePath);
const relativePath = path.relative(__dirname, realPath);
// Only allow access to files in "dist" folder or html files in the same directory
if (method === "GET" && (relativePath.startsWith("dist") || relativePath.match(/^[a-zA-Z-_]*\.html/))) {
callback(realPath);
return;
}
log.error(`Tried to access a page outside the sandbox. Url: ${url}. Method: ${method}.`);
callback(path.join(__dirname, "fileError.txt"));
log.error(
`Tried to access a page outside the sandbox. Url: ${url}. FilePath: ${filePath}. RealPath: ${realPath}.` +
` __dirname: ${__dirname}. RelativePath: ${relativePath}. Method: ${method}.`,
);
callback(path.join(__dirname, "fileError.html"));
});
log.info("Application is ready!");