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Allow configuring paste ID and encryption key lengths in config.json

This commit is contained in:
ComputerTech 2026-03-28 01:15:14 +00:00
parent f8cc163ba9
commit cdbd700c2e
4 changed files with 7 additions and 4 deletions
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1
app.py
View File

@ -390,6 +390,7 @@ def get_client_config():
'default_expiry': _pastes.get('default_expiry', 'never'), 'default_expiry': _pastes.get('default_expiry', 'never'),
'allow_expiry_options': _pastes.get('allow_expiry_options', []), 'allow_expiry_options': _pastes.get('allow_expiry_options', []),
'expiry_labels': _pastes.get('expiry_labels', {}), 'expiry_labels': _pastes.get('expiry_labels', {}),
'encryption_key_bits': _pastes.get('encryption_key_bits', 128),
}, },
}) })

1
config.json
View File

@ -23,6 +23,7 @@
"pastes": { "pastes": {
"max_size_bytes": 2097152, "max_size_bytes": 2097152,
"id_length": 8, "id_length": 8,
"encryption_key_bits": 128,
"recent_limit": 50, "recent_limit": 50,
"default_language": "text", "default_language": "text",
"default_expiry": "1year", "default_expiry": "1year",

6
static/js/crypto.js
View File

@ -43,10 +43,10 @@ const PasteCrypto = (function () {
} }
return { return {
/** Generate a new, random AES-GCM 256-bit key. */ /** Generate a new, random AES-GCM key. Default to 128-bit if not specified. */
async generateKey() { async generateKey(length = 128) {
return window.crypto.subtle.generateKey( return window.crypto.subtle.generateKey(
{ name: 'AES-GCM', length: 128 }, { name: 'AES-GCM', length: length },
true, true,
['encrypt', 'decrypt'] ['encrypt', 'decrypt']
); );

3
static/js/paste_create.js
View File

@ -89,7 +89,8 @@ document.addEventListener('DOMContentLoaded', function () {
try { try {
let postBody, keyBase64 = null; let postBody, keyBase64 = null;
if (E2E) { if (E2E) {
const key = await PasteCrypto.generateKey(); const keyLen = window.PBCFG?.pastes?.encryption_key_bits ?? 128;
const key = await PasteCrypto.generateKey(keyLen);
keyBase64 = await PasteCrypto.exportKey(key); keyBase64 = await PasteCrypto.exportKey(key);
const plain = JSON.stringify({ title, content, language }); const plain = JSON.stringify({ title, content, language });
postBody = { encrypted_data: await PasteCrypto.encrypt(plain, key), expires_in }; postBody = { encrypted_data: await PasteCrypto.encrypt(plain, key), expires_in };