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feat: add client-side SSH Ed25519 key generator on order page

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Adds a "Generate a new key" button to the checkout SSH key section that
creates an Ed25519 keypair entirely in the browser using Web Crypto API.
The public key auto-fills the form field, and the private key is presented
for download/copy with a clear "save now" warning.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
EZSCALE
2026-02-07 15:22:33 -06:00
parent e8d2eb0aa1
commit 209e01deb6
2 changed files with 234 additions and 0 deletions
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110
modules/servers/VirtFusionDirect/hooks.php
View File

@@ -1,6 +1,7 @@
<?php
use WHMCS\Module\Server\VirtFusionDirect\ConfigureService;
use WHMCS\Module\Server\VirtFusionDirect\Database;
use WHMCS\User\User;
if (!defined("WHMCS")) {
@@ -135,7 +136,10 @@ add_hook('ClientAreaFooterOutput', 1, function ($vars) {
return null;
}
$systemUrl = Database::getSystemUrl();
return "
<script src=\"" . htmlspecialchars($systemUrl, ENT_QUOTES, 'UTF-8') . "modules/servers/VirtFusionDirect/templates/js/keygen.js?v=0.0.20\"></script>
<script>
document.addEventListener('DOMContentLoaded', function() {
var osTemplates = " . json_encode($dropdownOptions, JSON_THROW_ON_ERROR | JSON_HEX_TAG | JSON_HEX_AMP | JSON_HEX_APOS | JSON_HEX_QUOT) . ";
@@ -197,6 +201,106 @@ add_hook('ClientAreaFooterOutput', 1, function ($vars) {
sshPasteContainer.appendChild(pasteLabel);
sshPasteContainer.appendChild(pasteArea);
// Generate key button
var generateBtn = document.createElement('button');
generateBtn.type = 'button';
generateBtn.className = 'btn btn-outline-secondary btn-sm';
generateBtn.textContent = 'Generate a new key';
generateBtn.style.marginTop = '8px';
// Private key panel (hidden initially)
var privKeyPanel = document.createElement('div');
privKeyPanel.setAttribute('id', 'vf-privkey-panel');
privKeyPanel.style.display = 'none';
privKeyPanel.style.marginTop = '12px';
privKeyPanel.style.border = '2px solid #dc3545';
privKeyPanel.style.borderRadius = '6px';
privKeyPanel.style.padding = '12px';
var privKeyWarning = document.createElement('div');
privKeyWarning.style.color = '#dc3545';
privKeyWarning.style.fontWeight = 'bold';
privKeyWarning.style.marginBottom = '8px';
privKeyWarning.textContent = 'Private Key — Save This Now! It will not be shown again.';
var privKeyArea = document.createElement('textarea');
privKeyArea.className = 'form-control';
privKeyArea.setAttribute('rows', '6');
privKeyArea.setAttribute('readonly', 'readonly');
privKeyArea.style.fontFamily = 'monospace';
privKeyArea.style.fontSize = '12px';
privKeyArea.style.marginBottom = '8px';
var privKeyBtnRow = document.createElement('div');
privKeyBtnRow.style.display = 'flex';
privKeyBtnRow.style.gap = '8px';
privKeyBtnRow.style.alignItems = 'center';
privKeyBtnRow.style.flexWrap = 'wrap';
var downloadBtn = document.createElement('button');
downloadBtn.type = 'button';
downloadBtn.className = 'btn btn-primary btn-sm';
downloadBtn.textContent = 'Download';
var copyBtn = document.createElement('button');
copyBtn.type = 'button';
copyBtn.className = 'btn btn-default btn-secondary btn-sm';
copyBtn.textContent = 'Copy to Clipboard';
var pubKeyConfirm = document.createElement('span');
pubKeyConfirm.style.color = '#28a745';
pubKeyConfirm.style.fontWeight = 'bold';
pubKeyConfirm.textContent = 'Public key set automatically.';
privKeyBtnRow.appendChild(downloadBtn);
privKeyBtnRow.appendChild(copyBtn);
privKeyBtnRow.appendChild(pubKeyConfirm);
privKeyPanel.appendChild(privKeyWarning);
privKeyPanel.appendChild(privKeyArea);
privKeyPanel.appendChild(privKeyBtnRow);
downloadBtn.addEventListener('click', function() {
vfDownloadFile('id_ed25519', privKeyArea.value);
});
copyBtn.addEventListener('click', function() {
navigator.clipboard.writeText(privKeyArea.value).then(function() {
copyBtn.textContent = 'Copied!';
setTimeout(function() { copyBtn.textContent = 'Copy to Clipboard'; }, 2000);
});
});
// Error message for unsupported browsers
var genErrorMsg = document.createElement('div');
genErrorMsg.style.display = 'none';
genErrorMsg.style.marginTop = '8px';
genErrorMsg.style.color = '#dc3545';
genErrorMsg.textContent = 'Your browser does not support Ed25519 key generation. Please paste your public key manually.';
generateBtn.addEventListener('click', async function() {
generateBtn.disabled = true;
generateBtn.textContent = 'Generating...';
try {
var keys = await vfGenerateSSHKey();
var sshSelect = document.getElementById('vf-ssh-select');
if (sshSelect) {
sshSelect.value = '__new__';
sshPasteContainer.style.display = 'block';
}
pasteArea.value = keys.publicKey;
sshInputField.value = keys.publicKey;
privKeyArea.value = keys.privateKey;
privKeyPanel.style.display = 'block';
genErrorMsg.style.display = 'none';
} catch (e) {
genErrorMsg.style.display = 'block';
privKeyPanel.style.display = 'none';
} finally {
generateBtn.disabled = false;
generateBtn.textContent = 'Generate a new key';
}
});
if (sshKeys.length > 0) {
var sshSelect = document.createElement('select');
sshSelect.className = 'form-control';
@@ -233,11 +337,17 @@ add_hook('ClientAreaFooterOutput', 1, function ($vars) {
sshInputField.parentNode.insertBefore(sshSelect, sshInputField.nextSibling);
sshSelect.parentNode.insertBefore(sshPasteContainer, sshSelect.nextSibling);
sshPasteContainer.parentNode.insertBefore(generateBtn, sshPasteContainer.nextSibling);
generateBtn.parentNode.insertBefore(genErrorMsg, generateBtn.nextSibling);
genErrorMsg.parentNode.insertBefore(privKeyPanel, genErrorMsg.nextSibling);
sshInputField.style.display = 'none';
} else {
// No existing keys — show the paste textarea directly
sshPasteContainer.style.display = 'block';
sshInputField.parentNode.insertBefore(sshPasteContainer, sshInputField.nextSibling);
sshPasteContainer.parentNode.insertBefore(generateBtn, sshPasteContainer.nextSibling);
generateBtn.parentNode.insertBefore(genErrorMsg, generateBtn.nextSibling);
genErrorMsg.parentNode.insertBefore(privKeyPanel, genErrorMsg.nextSibling);
sshInputField.style.display = 'none';
}
}