mirror of
https://github.com/ArcticFoxes-net/ONC-Converter
synced 2024-12-22 00:11:33 -05:00
Convert to dark theme
Signed-off-by: Tommy <contact@tommytran.io>
This commit is contained in:
parent
2b0babf76c
commit
1ba8ababf9
12
README.md
12
README.md
@ -1,8 +1,10 @@
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# ovpn2onc
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# ONC Converter
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Convert OpenVPN config files to the ONC ChromeOS network config files.
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Convert OpenVPN configuration files to ONC configuration files.
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## How to use
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## How to use
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Download the `ovpn2onc.html` file and open it in Chrome (or any other modern browser). Follow the instructions there.
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Download the `index.html` file and open it in Chrome (or any other modern browser). Follow the instructions there.
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You can also use the hosted copy at [https://thomkeh.github.io/ovpn2onc/ovpn2onc.html](https://thomkeh.github.io/ovpn2onc/ovpn2onc.html)
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You can also use the hosted copy at [https://onc.arcticfoxes.net](https://onc.tommytran.io). If you do, you need to trust the website (hosted on [Netlify](https://netlify.app/)) to not exfiltrate your password, certificates, and keys.
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but be aware that in this case your configuration (with keys) will be sent over the Internet and you have to trust the website.
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## Attribution
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This is a fork of [thomkeh/ovpn2onc](https://github.com/thomkeh/ovpn2onc) with the dark theme.
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45
css/style.css
Normal file
45
css/style.css
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body {
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background-color: #1F2125;
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color: #DADADB;
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}
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a{
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color: inherit;
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}
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#output {
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background-color: #26282D;
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}
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#log {
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width: 50em;
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min-height: 7em;
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border: 1px solid grey;
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overflow-x: auto;
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background-color: #26282D;
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}
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#log>p {
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margin: 0px;
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}
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input::file-selector-button {
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color: #DADADB;
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background-color: #26282D;
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border: thin solid grey;
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border-radius: 3px;
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}
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.input_field {
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color: #DADADB;
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background-color: #26282D;
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border: thin solid grey;
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border-radius: 3px;
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}
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.button {
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color: #DADADB;
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background-color: #26282D;
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border: thin solid grey;
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border-radius: 3px;
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}
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53
index.html
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53
index.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>OpenVPN to ONC Converter</title>
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<meta name="description" content="Convert OpenVPN config files to ONC files">
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<link rel="stylesheet" href="css/style.css">
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<script src="js/conversion.js"></script>
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</head>
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<body onload="setHandler()">
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<h1>OpenVPN to ONC Converter</h1>
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<div>
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<p><b>Input</b></p>
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<ul>
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<li>
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<label for="connname">Name for connection:</label>
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<input type="text" id="connname" class="input_field">
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</li>
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<li>
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<label for="inputopenvpn">OpenVPN configuration file:</label>
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<input type="file" id="inputopenvpn">
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</li>
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<li>
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<label for="inputcertificates">Certificates and keys (can be multiple files):</label>
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<input type="file" id="inputcertificates" multiple>
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</li>
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</ul>
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<button id="convertbutton" type="button" class="button">Convert</button>
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</div>
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<div>
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<p><b>Output</b> (save this as an .onc file)</p>
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<textarea readonly id="output" wrap="off" rows="20" cols="98"></textarea>
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</div>
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<div>
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<p>Debugging info:</p>
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<div id="log"></div>
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</div>
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<div>
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<p><b>Notes</b></p>
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<ul>
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<li>This converter can only put 1 IP address in the .onc file.</li>
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<li>Import the .onc file in <a href="chrome://network">chrome://network</a></li>
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<li><a href="https://github.com/tommytran732/ONC-Converter">Source Code</a></li>
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</ul>
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</div>
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</body>
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</html>
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472
js/conversion.js
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472
js/conversion.js
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/**
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* Register the function `handler` to be called when the `Convert` button is
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* pressed.
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*/
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function setHandler() {
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let convertButton = document.getElementById('convertbutton')
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convertButton.addEventListener('click', handler, false)
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}
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/**
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* Read parameters and pass them to the `main` function. This function is
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* called when the `Convert` button is clicked.
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*/
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function handler() {
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let selectedFile = document.getElementById('inputopenvpn').files[0]
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let certificates = document.getElementById('inputcertificates').files
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let connName = document.getElementById('connname').value
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let output = document.getElementById('output')
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main(connName, selectedFile, certificates, output)
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}
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/**
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* Return a function that logs text to the log output.
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*/
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function getLogger() {
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let logOutput = document.getElementById('log')
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let logger = function (text) {
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logOutput.innerHTML += `<p>${text}</p>`
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}
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return logger
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}
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/**
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* Read, convert and print result. This function calls other functions
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* to first read everything, then convert it and finally print the result.
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*
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* The function is `async` because it uses `await` when reading files.
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*
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* @param {String} connName Name of the connection
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* @param {File} ovpnFile File object for the ovpn file
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* @param {Array} certificateFiles List of file objects for the certificates
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* @param {Object} output HTML element where the output should go
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*/
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async function main(connName, ovpnFile, certificateFiles, output) {
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log = getLogger()
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if (connName === '') {
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log('connName is empty')
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alert('Please specify a name for the connection.')
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return
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}
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log(`Size of OVPN file: ${ovpnFile.size} bytes`)
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let ovpnContent = await readFile(ovpnFile)
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let ovpn
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let keys
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try {
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[ovpn, keys] = parseOvpn(ovpnContent)
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} catch (err) {
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log(err)
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return
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}
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log("Parsed config:")
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log(JSON.stringify(ovpn))
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for (const certificateFile of certificateFiles) {
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keys[certificateFile.name] = await readFile(certificateFile)
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}
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let onc
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try {
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onc = constructOnc(connName, ovpn, keys)
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} catch (err) {
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log(err)
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return
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}
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output.value = JSON.stringify(onc, null, 2)
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log('All done!')
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}
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/**
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* Return a promise to read a file as text.
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*
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* @param {File} file A file object
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*
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* @return {Promise} A promise with the contents of the file
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*/
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function readFile(file) {
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return new Promise(resolve => {
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let reader = new FileReader()
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reader.onload = e => {
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// callback and remove windows-style newlines
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resolve(e.target.result.replace(/\r/g, ''))
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}
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// start reading
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reader.readAsText(file)
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})
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}
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/**
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* Parse an OVPN file. Extract all the key-value pairs and keys
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* that are written inside XML tags.
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*
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* The key-value pairs are written into an object. The keys are also
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* written into an object with the the XML tag name as the key.
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*
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* @param {String} str The contents of the ovpn file as a string.
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*
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* @return {Array} An array that contains the key-value pairs and
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* the keys.
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*/
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function parseOvpn(str) {
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log = getLogger()
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let ovpn = {}
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let keys = {}
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// define regexes for properties, opening xml tag and closing xml tag
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const reProperty = /^([^ ]+)( (.*))?$/i
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const reXmlOpen = /^<([^\/].*)>$/i
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const reXmlClose = /^<\/(.*)>$/i
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// temporary variables for handling xml tags
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let xmlTag = ''
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let inXml = false
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let xmlContent = ''
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let lines = str.split(/[\r\n]+/g)
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for (let line of lines) {
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// skip line if it is empty or begins with '#' or ';'
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if (!line || line.match(/^\s*[;#]/)) {
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log(`Skipped line: "${line}"`)
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continue
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}
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if (inXml) { // an XML tag was opened and hasn't been closed yet
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const xmlMatch = line.match(reXmlClose)
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if (!xmlMatch) {
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// no closing tag -> add content to `xmlContent`
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xmlContent += line + '\n'
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continue
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}
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const tag = xmlMatch[1]
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if (tag !== xmlTag) {
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alert('Cannot parse ovpn file.')
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throw 'bad xml tag'
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}
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// closing tag was found
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// make sure the tag name and the contents are safe
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const name = makeSafe(xmlTag)
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const value = xmlContent
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// store everything and reset the xml variables
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keys[name] = value
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ovpn[name] = name
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xmlContent = ''
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inXml = false
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continue
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}
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const xmlMatch = line.match(reXmlOpen)
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if (xmlMatch) {
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// an xml tag was opened
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inXml = true
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xmlTag = xmlMatch[1]
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log(`XML tag was opened: "${xmlTag}"`)
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continue
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}
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// check if the line contains a property
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const match = line.match(reProperty)
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if (!match) continue
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// make sure everything is safe and then store it
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const key = makeSafe(match[1])
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const value = match[2] ? (match[3] || '') : true
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ovpn[key] = value
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log(`Found: ${key} = ${value}`)
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}
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log('Finished parsing')
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return [ovpn, keys]
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}
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/**
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* Check if string is quoted
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*/
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function isQuoted(val) {
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return ((val.charAt(0) === '"' && val.slice(-1) === '"') ||
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(val.charAt(0) === "'" && val.slice(-1) === "'"))
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}
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/**
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* This function is supposed to prevent any exploits via the object keys
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*
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* It's probably complete overkill.
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*/
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function makeSafe(val, doUnesc) {
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val = (val || '').trim()
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if (isQuoted(val)) {
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// remove the single quotes before calling JSON.parse
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if (val.charAt(0) === "'") {
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val = val.substr(1, val.length - 2)
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}
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try { val = JSON.parse(val) } catch (_) { }
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} else {
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// walk the val to find the first not-escaped ; character
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var esc = false
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var unesc = ''
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for (var i = 0, l = val.length; i < l; i++) {
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var c = val.charAt(i)
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if (esc) {
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if ('\\;#'.indexOf(c) !== -1) {
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unesc += c
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} else {
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unesc += '\\' + c
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}
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esc = false
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} else if (';#'.indexOf(c) !== -1) {
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break
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} else if (c === '\\') {
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esc = true
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} else {
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unesc += c
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}
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}
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if (esc) {
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unesc += '\\'
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}
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return unesc
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}
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return val
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}
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/**
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* Convert the keys from the parsed OVPN file into ONC keys
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*
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* @param {Object} keys Strings with keys, indexed by key name
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* @param {Object} keynames Object with the key names
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* @return {Object} ONC parameters and a list of converted certificates
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*/
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function convertKeys(keys, keyNames) {
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let params = {}
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// Add certificates
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let certs = []
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// Server certificate
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// TODO: confirm that the type should be 'Authority'
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let [cas, caGuids] = constructCerts(keys, keyNames.certificateAuthorities,
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'Authority')
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params['ServerCARefs'] = caGuids
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certs = certs.concat(cas)
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// Client certificate
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if (keyNames.clientCertificates) {
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// TODO: handle other types of client certificates
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let [clientCerts, clientCertGuids] = constructCerts(
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keys, keyNames.clientCertificates, 'Authority')
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params['ClientCertType'] = 'Pattern'
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params['ClientCertPattern'] = {
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'IssuerCARef': clientCertGuids
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}
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certs = certs.concat(clientCerts)
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} else {
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params['ClientCertType'] = 'None'
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}
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// TLS auth
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if (keyNames.tlsAuth) {
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let authKey = keyNames.tlsAuth.split(' ')
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let keyString = keys[authKey[0]]
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if (!keyString) {
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alert(`Please provide the file '${authKey[0]}' in 'Certificates and keys'`)
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throw `Couldn't find the key for ${authKey[0]}`
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}
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params['TLSAuthContents'] = convertKey(keyString)
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if (authKey[1]) params['KeyDirection'] = authKey[1]
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}
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return [params, certs]
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}
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/**
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* Convert the parsed ovpn file into the ONC structure
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*
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* @param {Object} ovpn The parsed OVPN file
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||||||
|
* @return {Array} An array with the host and an object with the parameters
|
||||||
|
*/
|
||||||
|
function convertToOnc(ovpn) {
|
||||||
|
if (!ovpn.client) {
|
||||||
|
console.warn('Is this a server file?')
|
||||||
|
}
|
||||||
|
let params = {}
|
||||||
|
|
||||||
|
// Add parameters
|
||||||
|
let remote = ovpn.remote.split(' ')
|
||||||
|
const host = remote[0]
|
||||||
|
if (remote[1]) params['Port'] = Number(remote[1])
|
||||||
|
if (ovpn['auth-user-pass']) params['UserAuthenticationType'] = 'Password'
|
||||||
|
if (ovpn['comp-lzo'] && ovpn['comp-lzo'] !== 'no') {
|
||||||
|
params['CompLZO'] = 'true'
|
||||||
|
} else {
|
||||||
|
params['CompLZO'] = 'false'
|
||||||
|
}
|
||||||
|
if (ovpn['persist-key']) params['SaveCredentials'] = true
|
||||||
|
if (ovpn['verify-x509-name']) {
|
||||||
|
const x509String = ovpn['verify-x509-name']
|
||||||
|
let x509 = {}
|
||||||
|
if (x509String.includes("'")) {
|
||||||
|
// the name is quoted with '
|
||||||
|
const parts = x509String.split("'")
|
||||||
|
x509['Name'] = parts[1]
|
||||||
|
if (parts[2]) {
|
||||||
|
x509['Type'] = parts[2].trim()
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
const parts = x509String.split(' ')
|
||||||
|
x509['Name'] = parts[0]
|
||||||
|
if (parts[1]) {
|
||||||
|
x509['Type'] = parts[1]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
params['VerifyX509'] = x509
|
||||||
|
}
|
||||||
|
|
||||||
|
// set parameters if they exist in the ovpn config
|
||||||
|
let conditionalSet = (ovpnName, oncName, type = 'str') => {
|
||||||
|
if (ovpn[ovpnName]) {
|
||||||
|
const raw = ovpn[ovpnName]
|
||||||
|
let value
|
||||||
|
switch (type) {
|
||||||
|
case 'int':
|
||||||
|
value = Number(raw)
|
||||||
|
break
|
||||||
|
default:
|
||||||
|
value = raw
|
||||||
|
}
|
||||||
|
params[oncName] = value
|
||||||
|
} else {
|
||||||
|
log(`Value for '${ovpnName}' not specified.`)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
conditionalSet('port', 'Port', 'int')
|
||||||
|
conditionalSet('proto', 'Proto')
|
||||||
|
conditionalSet('key-direction', 'KeyDirection')
|
||||||
|
conditionalSet('remote-cert-tls', 'RemoteCertTLS')
|
||||||
|
conditionalSet('cipher', 'Cipher')
|
||||||
|
conditionalSet('auth', 'Auth')
|
||||||
|
conditionalSet('auth-retry', 'AuthRetry')
|
||||||
|
conditionalSet('reneg-sec', 'RenegSec', 'int')
|
||||||
|
|
||||||
|
const keyNames = {
|
||||||
|
'certificateAuthorities': ovpn['ca'],
|
||||||
|
'clientCertificates': ovpn['cert'],
|
||||||
|
'tlsAuth': ovpn['tls-auth'],
|
||||||
|
}
|
||||||
|
|
||||||
|
return [host, params, keyNames]
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Construct the ONC structure from the name, the parsed ovpn file and the keys
|
||||||
|
*
|
||||||
|
* @param {string} name Name of the connection
|
||||||
|
* @param {Object} ovpn The parsed OVPN file
|
||||||
|
* @param {Object} keys Strings with keys, indexed by key name
|
||||||
|
* @return {Object} The converted ONC structure
|
||||||
|
*/
|
||||||
|
function constructOnc(name, ovpn, keys) {
|
||||||
|
let [host, params, keyNames] = convertToOnc(ovpn)
|
||||||
|
let [certParams, certificates] = convertKeys(keys, keyNames)
|
||||||
|
// merge parameters
|
||||||
|
params = Object.assign({}, params, certParams)
|
||||||
|
|
||||||
|
// Put together network configuration
|
||||||
|
let networkConfiguration = {
|
||||||
|
'GUID': `{${uuidv4()}}`,
|
||||||
|
'Name': name,
|
||||||
|
'Type': 'VPN',
|
||||||
|
'VPN': {
|
||||||
|
'Type': 'OpenVPN',
|
||||||
|
'Host': host,
|
||||||
|
'OpenVPN': params
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Put everything together
|
||||||
|
return {
|
||||||
|
'Type': 'UnencryptedConfiguration',
|
||||||
|
'Certificates': certificates,
|
||||||
|
'NetworkConfigurations': [networkConfiguration]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Create UUID (from Stackoverflow).
|
||||||
|
*/
|
||||||
|
function uuidv4() {
|
||||||
|
return ([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, c =>
|
||||||
|
(c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
|
||||||
|
)
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Replace newlines with explicit `\n` and filter out comments
|
||||||
|
*/
|
||||||
|
function convertKey(key) {
|
||||||
|
let lines = key.split(/\n/g)
|
||||||
|
let out = ''
|
||||||
|
for (let line of lines) {
|
||||||
|
// filter out empty lines and lines with comments
|
||||||
|
if (!line || line.match(/^\s*[;#]/)) continue
|
||||||
|
out += line + '\n'
|
||||||
|
}
|
||||||
|
return out
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Find all certificates in a string and extract them
|
||||||
|
*/
|
||||||
|
function extractCas(str) {
|
||||||
|
log = getLogger()
|
||||||
|
let splits = str.replace(/\n/g, '').split('-----BEGIN CERTIFICATE-----')
|
||||||
|
let cas = []
|
||||||
|
for (const s of splits) {
|
||||||
|
if (s.includes('-----END CERTIFICATE-----')) {
|
||||||
|
let extractedCa = s.split('-----END CERTIFICATE-----')[0]
|
||||||
|
log("Extracted CA:")
|
||||||
|
log(extractedCa)
|
||||||
|
cas.push(extractedCa)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return cas
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Construct certificates in the ONC format
|
||||||
|
*
|
||||||
|
* @param {Object} keys Strings with keys, indexed by key name
|
||||||
|
* @param {string} certName The index for the keys object
|
||||||
|
* @param {string} certType Type of the certificate: 'Authority', 'Client' or
|
||||||
|
* 'Server'
|
||||||
|
* @return {Array} An array of certificates and an array of corresponding IDs
|
||||||
|
*/
|
||||||
|
function constructCerts(keys, certName, certType) {
|
||||||
|
let certs = []
|
||||||
|
let certGuids = []
|
||||||
|
if (certName) {
|
||||||
|
let cert = keys[certName]
|
||||||
|
if (!cert) {
|
||||||
|
alert(`Please provide the file '${certName}' in 'Certificates and keys'`)
|
||||||
|
throw `Couldn't find a certificate for ${certName}`
|
||||||
|
}
|
||||||
|
let rawCerts = extractCas(cert)
|
||||||
|
const format = (certType === 'Authority') ? 'X509' : 'PKCS12'
|
||||||
|
for (const cert of rawCerts) {
|
||||||
|
const guid = `{${uuidv4()}}`
|
||||||
|
certGuids.push(guid)
|
||||||
|
let oncCert = {
|
||||||
|
'GUID': guid,
|
||||||
|
'Type': certType
|
||||||
|
}
|
||||||
|
oncCert[format] = cert
|
||||||
|
certs.push(oncCert)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return [certs, certGuids]
|
||||||
|
}
|
||||||
531
ovpn2onc.html
531
ovpn2onc.html
@ -1,531 +0,0 @@
|
|||||||
<!DOCTYPE html>
|
|
||||||
|
|
||||||
<html lang="en">
|
|
||||||
<head>
|
|
||||||
<meta charset="utf-8">
|
|
||||||
|
|
||||||
<title>OpenVPN to ONC</title>
|
|
||||||
<meta name="description" content="Convert OpenVPN config files to ONC files">
|
|
||||||
|
|
||||||
<style>
|
|
||||||
#output {
|
|
||||||
background-color: #ddd;
|
|
||||||
}
|
|
||||||
#log {
|
|
||||||
width: 40em;
|
|
||||||
min-height: 7em;
|
|
||||||
border: 1px solid black;
|
|
||||||
overflow-x: auto;
|
|
||||||
background-color: #eee;
|
|
||||||
}
|
|
||||||
#log>p {
|
|
||||||
margin: 0px;
|
|
||||||
}
|
|
||||||
</style>
|
|
||||||
<script>
|
|
||||||
/**
|
|
||||||
* Register the function `handler` to be called when the `Convert` button is
|
|
||||||
* pressed.
|
|
||||||
*/
|
|
||||||
function setHandler () {
|
|
||||||
let convertButton = document.getElementById('convertbutton')
|
|
||||||
convertButton.addEventListener('click', handler, false)
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Read parameters and pass them to the `main` function. This function is
|
|
||||||
* called when the `Convert` button is clicked.
|
|
||||||
*/
|
|
||||||
function handler () {
|
|
||||||
let selectedFile = document.getElementById('inputopenvpn').files[0]
|
|
||||||
let certificates = document.getElementById('inputcertificates').files
|
|
||||||
let connName = document.getElementById('connname').value
|
|
||||||
let output = document.getElementById('output')
|
|
||||||
main(connName, selectedFile, certificates, output)
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Return a function that logs text to the log output.
|
|
||||||
*/
|
|
||||||
function getLogger () {
|
|
||||||
let logOutput = document.getElementById('log')
|
|
||||||
let logger = function (text) {
|
|
||||||
logOutput.innerHTML += `<p>${text}</p>`
|
|
||||||
}
|
|
||||||
return logger
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Read, convert and print result. This function calls other functions
|
|
||||||
* to first read everything, then convert it and finally print the result.
|
|
||||||
*
|
|
||||||
* The function is `async` because it uses `await` when reading files.
|
|
||||||
*
|
|
||||||
* @param {String} connName Name of the connection
|
|
||||||
* @param {File} ovpnFile File object for the ovpn file
|
|
||||||
* @param {Array} certificateFiles List of file objects for the certificates
|
|
||||||
* @param {Object} output HTML element where the output should go
|
|
||||||
*/
|
|
||||||
async function main (connName, ovpnFile, certificateFiles, output) {
|
|
||||||
log = getLogger()
|
|
||||||
if (connName === '') {
|
|
||||||
log('connName is empty')
|
|
||||||
alert('Please specify a name for the connection.')
|
|
||||||
return
|
|
||||||
}
|
|
||||||
log(`Size of OVPN file: ${ovpnFile.size} bytes`)
|
|
||||||
let ovpnContent = await readFile(ovpnFile)
|
|
||||||
let ovpn
|
|
||||||
let keys
|
|
||||||
try {
|
|
||||||
[ovpn, keys] = parseOvpn(ovpnContent)
|
|
||||||
} catch (err) {
|
|
||||||
log(err)
|
|
||||||
return
|
|
||||||
}
|
|
||||||
log("Parsed config:")
|
|
||||||
log(JSON.stringify(ovpn))
|
|
||||||
for (const certificateFile of certificateFiles) {
|
|
||||||
keys[certificateFile.name] = await readFile(certificateFile)
|
|
||||||
}
|
|
||||||
let onc
|
|
||||||
try {
|
|
||||||
onc = constructOnc(connName, ovpn, keys)
|
|
||||||
} catch (err) {
|
|
||||||
log(err)
|
|
||||||
return
|
|
||||||
}
|
|
||||||
output.value = JSON.stringify(onc, null, 2)
|
|
||||||
log('All done!')
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Return a promise to read a file as text.
|
|
||||||
*
|
|
||||||
* @param {File} file A file object
|
|
||||||
*
|
|
||||||
* @return {Promise} A promise with the contents of the file
|
|
||||||
*/
|
|
||||||
function readFile (file) {
|
|
||||||
return new Promise(resolve => {
|
|
||||||
let reader = new FileReader()
|
|
||||||
reader.onload = e => {
|
|
||||||
// callback and remove windows-style newlines
|
|
||||||
resolve(e.target.result.replace(/\r/g, ''))
|
|
||||||
}
|
|
||||||
// start reading
|
|
||||||
reader.readAsText(file)
|
|
||||||
})
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Parse an OVPN file. Extract all the key-value pairs and keys
|
|
||||||
* that are written inside XML tags.
|
|
||||||
*
|
|
||||||
* The key-value pairs are written into an object. The keys are also
|
|
||||||
* written into an object with the the XML tag name as the key.
|
|
||||||
*
|
|
||||||
* @param {String} str The contents of the ovpn file as a string.
|
|
||||||
*
|
|
||||||
* @return {Array} An array that contains the key-value pairs and
|
|
||||||
* the keys.
|
|
||||||
*/
|
|
||||||
function parseOvpn (str) {
|
|
||||||
log = getLogger()
|
|
||||||
let ovpn = {}
|
|
||||||
let keys = {}
|
|
||||||
// define regexes for properties, opening xml tag and closing xml tag
|
|
||||||
const reProperty = /^([^ ]+)( (.*))?$/i
|
|
||||||
const reXmlOpen = /^<([^\/].*)>$/i
|
|
||||||
const reXmlClose = /^<\/(.*)>$/i
|
|
||||||
|
|
||||||
// temporary variables for handling xml tags
|
|
||||||
let xmlTag = ''
|
|
||||||
let inXml = false
|
|
||||||
let xmlContent = ''
|
|
||||||
|
|
||||||
let lines = str.split(/[\r\n]+/g)
|
|
||||||
|
|
||||||
for (let line of lines) {
|
|
||||||
// skip line if it is empty or begins with '#' or ';'
|
|
||||||
if (!line || line.match(/^\s*[;#]/)) {
|
|
||||||
log(`Skipped line: "${line}"`)
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
if (inXml) { // an XML tag was opened and hasn't been closed yet
|
|
||||||
const xmlMatch = line.match(reXmlClose)
|
|
||||||
if (!xmlMatch) {
|
|
||||||
// no closing tag -> add content to `xmlContent`
|
|
||||||
xmlContent += line + '\n'
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
const tag = xmlMatch[1]
|
|
||||||
if (tag !== xmlTag) {
|
|
||||||
alert('Cannot parse ovpn file.')
|
|
||||||
throw 'bad xml tag'
|
|
||||||
}
|
|
||||||
// closing tag was found
|
|
||||||
// make sure the tag name and the contents are safe
|
|
||||||
const name = makeSafe(xmlTag)
|
|
||||||
const value = xmlContent
|
|
||||||
// store everything and reset the xml variables
|
|
||||||
keys[name] = value
|
|
||||||
ovpn[name] = name
|
|
||||||
xmlContent = ''
|
|
||||||
inXml = false
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
const xmlMatch = line.match(reXmlOpen)
|
|
||||||
if (xmlMatch) {
|
|
||||||
// an xml tag was opened
|
|
||||||
inXml = true
|
|
||||||
xmlTag = xmlMatch[1]
|
|
||||||
log(`XML tag was opened: "${xmlTag}"`)
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
// check if the line contains a property
|
|
||||||
const match = line.match(reProperty)
|
|
||||||
if (!match) continue
|
|
||||||
// make sure everything is safe and then store it
|
|
||||||
const key = makeSafe(match[1])
|
|
||||||
const value = match[2] ? (match[3] || '') : true
|
|
||||||
ovpn[key] = value
|
|
||||||
log(`Found: ${key} = ${value}`)
|
|
||||||
}
|
|
||||||
|
|
||||||
log('Finished parsing')
|
|
||||||
return [ovpn, keys]
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Check if string is quoted
|
|
||||||
*/
|
|
||||||
function isQuoted (val) {
|
|
||||||
return ((val.charAt(0) === '"' && val.slice(-1) === '"') ||
|
|
||||||
(val.charAt(0) === "'" && val.slice(-1) === "'"))
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
|
||||||
* This function is supposed to prevent any exploits via the object keys
|
|
||||||
*
|
|
||||||
* It's probably complete overkill.
|
|
||||||
*/
|
|
||||||
function makeSafe (val, doUnesc) {
|
|
||||||
val = (val || '').trim()
|
|
||||||
if (isQuoted(val)) {
|
|
||||||
// remove the single quotes before calling JSON.parse
|
|
||||||
if (val.charAt(0) === "'") {
|
|
||||||
val = val.substr(1, val.length - 2)
|
|
||||||
}
|
|
||||||
try { val = JSON.parse(val) } catch (_) {}
|
|
||||||
} else {
|
|
||||||
// walk the val to find the first not-escaped ; character
|
|
||||||
var esc = false
|
|
||||||
var unesc = ''
|
|
||||||
for (var i = 0, l = val.length; i < l; i++) {
|
|
||||||
var c = val.charAt(i)
|
|
||||||
if (esc) {
|
|
||||||
if ('\\;#'.indexOf(c) !== -1) {
|
|
||||||
unesc += c
|
|
||||||
} else {
|
|
||||||
unesc += '\\' + c
|
|
||||||
}
|
|
||||||
esc = false
|
|
||||||
} else if (';#'.indexOf(c) !== -1) {
|
|
||||||
break
|
|
||||||
} else if (c === '\\') {
|
|
||||||
esc = true
|
|
||||||
} else {
|
|
||||||
unesc += c
|
|
||||||
}
|
|
||||||
}
|
|
||||||
if (esc) {
|
|
||||||
unesc += '\\'
|
|
||||||
}
|
|
||||||
return unesc
|
|
||||||
}
|
|
||||||
return val
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Convert the keys from the parsed OVPN file into ONC keys
|
|
||||||
*
|
|
||||||
* @param {Object} keys Strings with keys, indexed by key name
|
|
||||||
* @param {Object} keynames Object with the key names
|
|
||||||
* @return {Object} ONC parameters and a list of converted certificates
|
|
||||||
*/
|
|
||||||
function convertKeys (keys, keyNames) {
|
|
||||||
let params = {}
|
|
||||||
|
|
||||||
// Add certificates
|
|
||||||
let certs = []
|
|
||||||
|
|
||||||
// Server certificate
|
|
||||||
// TODO: confirm that the type should be 'Authority'
|
|
||||||
let [cas, caGuids] = constructCerts(keys, keyNames.certificateAuthorities,
|
|
||||||
'Authority')
|
|
||||||
params['ServerCARefs'] = caGuids
|
|
||||||
certs = certs.concat(cas)
|
|
||||||
|
|
||||||
// Client certificate
|
|
||||||
if (keyNames.clientCertificates) {
|
|
||||||
// TODO: handle other types of client certificates
|
|
||||||
let [clientCerts, clientCertGuids] = constructCerts(
|
|
||||||
keys, keyNames.clientCertificates, 'Authority')
|
|
||||||
params['ClientCertType'] = 'Pattern'
|
|
||||||
params['ClientCertPattern'] = {
|
|
||||||
'IssuerCARef': clientCertGuids
|
|
||||||
}
|
|
||||||
certs = certs.concat(clientCerts)
|
|
||||||
} else {
|
|
||||||
params['ClientCertType'] = 'None'
|
|
||||||
}
|
|
||||||
|
|
||||||
// TLS auth
|
|
||||||
if (keyNames.tlsAuth) {
|
|
||||||
let authKey = keyNames.tlsAuth.split(' ')
|
|
||||||
let keyString = keys[authKey[0]]
|
|
||||||
if (!keyString) {
|
|
||||||
alert(`Please provide the file '${authKey[0]}' in 'Certificates and keys'`)
|
|
||||||
throw `Couldn't find the key for ${authKey[0]}`
|
|
||||||
}
|
|
||||||
params['TLSAuthContents'] = convertKey(keyString)
|
|
||||||
if (authKey[1]) params['KeyDirection'] = authKey[1]
|
|
||||||
}
|
|
||||||
return [params, certs]
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Convert the parsed ovpn file into the ONC structure
|
|
||||||
*
|
|
||||||
* @param {Object} ovpn The parsed OVPN file
|
|
||||||
* @return {Array} An array with the host and an object with the parameters
|
|
||||||
*/
|
|
||||||
function convertToOnc (ovpn) {
|
|
||||||
if (!ovpn.client) {
|
|
||||||
console.warn('Is this a server file?')
|
|
||||||
}
|
|
||||||
let params = {}
|
|
||||||
|
|
||||||
// Add parameters
|
|
||||||
let remote = ovpn.remote.split(' ')
|
|
||||||
const host = remote[0]
|
|
||||||
if (remote[1]) params['Port'] = Number(remote[1])
|
|
||||||
if (ovpn['auth-user-pass']) params['UserAuthenticationType'] = 'Password'
|
|
||||||
if (ovpn['comp-lzo'] && ovpn['comp-lzo'] !== 'no') {
|
|
||||||
params['CompLZO'] = 'true'
|
|
||||||
} else {
|
|
||||||
params['CompLZO'] = 'false'
|
|
||||||
}
|
|
||||||
if (ovpn['persist-key']) params['SaveCredentials'] = true
|
|
||||||
if (ovpn['verify-x509-name']) {
|
|
||||||
const x509String = ovpn['verify-x509-name']
|
|
||||||
let x509 = {}
|
|
||||||
if (x509String.includes("'")) {
|
|
||||||
// the name is quoted with '
|
|
||||||
const parts = x509String.split("'")
|
|
||||||
x509['Name'] = parts[1]
|
|
||||||
if (parts[2]) {
|
|
||||||
x509['Type'] = parts[2].trim()
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
const parts = x509String.split(' ')
|
|
||||||
x509['Name'] = parts[0]
|
|
||||||
if (parts[1]) {
|
|
||||||
x509['Type'] = parts[1]
|
|
||||||
}
|
|
||||||
}
|
|
||||||
params['VerifyX509'] = x509
|
|
||||||
}
|
|
||||||
|
|
||||||
// set parameters if they exist in the ovpn config
|
|
||||||
let conditionalSet = (ovpnName, oncName, type = 'str') => {
|
|
||||||
if (ovpn[ovpnName]) {
|
|
||||||
const raw = ovpn[ovpnName]
|
|
||||||
let value
|
|
||||||
switch (type) {
|
|
||||||
case 'int':
|
|
||||||
value = Number(raw)
|
|
||||||
break
|
|
||||||
default:
|
|
||||||
value = raw
|
|
||||||
}
|
|
||||||
params[oncName] = value
|
|
||||||
} else {
|
|
||||||
log(`Value for '${ovpnName}' not specified.`)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
conditionalSet('port', 'Port', 'int')
|
|
||||||
conditionalSet('proto', 'Proto')
|
|
||||||
conditionalSet('key-direction', 'KeyDirection')
|
|
||||||
conditionalSet('remote-cert-tls', 'RemoteCertTLS')
|
|
||||||
conditionalSet('cipher', 'Cipher')
|
|
||||||
conditionalSet('auth', 'Auth')
|
|
||||||
conditionalSet('auth-retry', 'AuthRetry')
|
|
||||||
conditionalSet('reneg-sec', 'RenegSec', 'int')
|
|
||||||
|
|
||||||
const keyNames = {
|
|
||||||
'certificateAuthorities': ovpn['ca'],
|
|
||||||
'clientCertificates': ovpn['cert'],
|
|
||||||
'tlsAuth': ovpn['tls-auth'],
|
|
||||||
}
|
|
||||||
|
|
||||||
return [host, params, keyNames]
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Construct the ONC structure from the name, the parsed ovpn file and the keys
|
|
||||||
*
|
|
||||||
* @param {string} name Name of the connection
|
|
||||||
* @param {Object} ovpn The parsed OVPN file
|
|
||||||
* @param {Object} keys Strings with keys, indexed by key name
|
|
||||||
* @return {Object} The converted ONC structure
|
|
||||||
*/
|
|
||||||
function constructOnc (name, ovpn, keys) {
|
|
||||||
let [host, params, keyNames] = convertToOnc(ovpn)
|
|
||||||
let [certParams, certificates] = convertKeys(keys, keyNames)
|
|
||||||
// merge parameters
|
|
||||||
params = Object.assign({}, params, certParams)
|
|
||||||
|
|
||||||
// Put together network configuration
|
|
||||||
let networkConfiguration = {
|
|
||||||
'GUID': `{${uuidv4()}}`,
|
|
||||||
'Name': name,
|
|
||||||
'Type': 'VPN',
|
|
||||||
'VPN': {
|
|
||||||
'Type': 'OpenVPN',
|
|
||||||
'Host': host,
|
|
||||||
'OpenVPN': params
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// Put everything together
|
|
||||||
return {
|
|
||||||
'Type': 'UnencryptedConfiguration',
|
|
||||||
'Certificates': certificates,
|
|
||||||
'NetworkConfigurations': [networkConfiguration]
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Create UUID (from Stackoverflow).
|
|
||||||
*/
|
|
||||||
function uuidv4 () {
|
|
||||||
return ([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, c =>
|
|
||||||
(c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
|
|
||||||
)
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Replace newlines with explicit `\n` and filter out comments
|
|
||||||
*/
|
|
||||||
function convertKey (key) {
|
|
||||||
let lines = key.split(/\n/g)
|
|
||||||
let out = ''
|
|
||||||
for (let line of lines) {
|
|
||||||
// filter out empty lines and lines with comments
|
|
||||||
if (!line || line.match(/^\s*[;#]/)) continue
|
|
||||||
out += line + '\n'
|
|
||||||
}
|
|
||||||
return out
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Find all certificates in a string and extract them
|
|
||||||
*/
|
|
||||||
function extractCas (str) {
|
|
||||||
log = getLogger()
|
|
||||||
let splits = str.replace(/\n/g, '').split('-----BEGIN CERTIFICATE-----')
|
|
||||||
let cas = []
|
|
||||||
for (const s of splits) {
|
|
||||||
if (s.includes('-----END CERTIFICATE-----')) {
|
|
||||||
let extractedCa = s.split('-----END CERTIFICATE-----')[0]
|
|
||||||
log("Extracted CA:")
|
|
||||||
log(extractedCa)
|
|
||||||
cas.push(extractedCa)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return cas
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Construct certificates in the ONC format
|
|
||||||
*
|
|
||||||
* @param {Object} keys Strings with keys, indexed by key name
|
|
||||||
* @param {string} certName The index for the keys object
|
|
||||||
* @param {string} certType Type of the certificate: 'Authority', 'Client' or
|
|
||||||
* 'Server'
|
|
||||||
* @return {Array} An array of certificates and an array of corresponding IDs
|
|
||||||
*/
|
|
||||||
function constructCerts (keys, certName, certType) {
|
|
||||||
let certs = []
|
|
||||||
let certGuids = []
|
|
||||||
if (certName) {
|
|
||||||
let cert = keys[certName]
|
|
||||||
if (!cert) {
|
|
||||||
alert(`Please provide the file '${certName}' in 'Certificates and keys'`)
|
|
||||||
throw `Couldn't find a certificate for ${certName}`
|
|
||||||
}
|
|
||||||
let rawCerts = extractCas(cert)
|
|
||||||
const format = (certType === 'Authority') ? 'X509' : 'PKCS12'
|
|
||||||
for (const cert of rawCerts) {
|
|
||||||
const guid = `{${uuidv4()}}`
|
|
||||||
certGuids.push(guid)
|
|
||||||
let oncCert = {
|
|
||||||
'GUID': guid,
|
|
||||||
'Type': certType
|
|
||||||
}
|
|
||||||
oncCert[format] = cert
|
|
||||||
certs.push(oncCert)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return [certs, certGuids]
|
|
||||||
}
|
|
||||||
</script>
|
|
||||||
</head>
|
|
||||||
|
|
||||||
<body onload="setHandler()">
|
|
||||||
<div>
|
|
||||||
<h1>ovpn2onc</h1>
|
|
||||||
<ul>
|
|
||||||
<li>
|
|
||||||
<label for="connname">Name for connection (can be chosen freely):</label>
|
|
||||||
<input type="text" id="connname">
|
|
||||||
</li>
|
|
||||||
<li>
|
|
||||||
<label for="inputopenvpn">OpenVPN config file (*.ovpn):</label>
|
|
||||||
<input type="file" id="inputopenvpn">
|
|
||||||
</li>
|
|
||||||
<li>
|
|
||||||
<label for="inputcertificates">Certificates and keys (can be multiple files):</label>
|
|
||||||
<input type="file" id="inputcertificates" multiple>
|
|
||||||
</li>
|
|
||||||
</ul>
|
|
||||||
<button id="convertbutton" type="button">Convert</button>
|
|
||||||
</div>
|
|
||||||
<div>
|
|
||||||
<p><b>Output</b> (copy this into a new file and load it in ChromeOS)</p>
|
|
||||||
<textarea readonly id="output" wrap="off" rows="40" cols="100"></textarea>
|
|
||||||
</div>
|
|
||||||
<div>
|
|
||||||
<p> </p>
|
|
||||||
<p> </p>
|
|
||||||
<p>Debugging info:</p>
|
|
||||||
<div id="log"></div>
|
|
||||||
</div>
|
|
||||||
</body>
|
|
||||||
</html>
|
|
||||||
Loading…
Reference in New Issue
Block a user