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Improve token generation by using openssl by default, then /dev/urandom and fallback to uniqid()

This commit is contained in:
Frédéric Guillot 2014-03-14 21:26:14 -04:00
parent 5469400c5b
commit 39aa6ad8e2
1 changed files with 6 additions and 4 deletions
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10
models/config.php
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@ -130,12 +130,14 @@ function get_nothing_to_read_redirections()
// Generate a token from /dev/urandom or with uniqid() if open_basedir is enabled
function generate_token()
{
if (ini_get('open_basedir') === '') {
return substr(base64_encode(file_get_contents('/dev/urandom', false, null, 0, 20)), 0, 15);
if (function_exists('openssl_random_pseudo_bytes')) {
return bin2hex(\openssl_random_pseudo_bytes(16));
}
else {
return substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
else if (ini_get('open_basedir') === '' && strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') {
return hash('sha256', file_get_contents('/dev/urandom', false, null, 0, 30));
}
return hash('sha256', uniqid(mt_rand(), true));
}
// Regenerate tokens for the API and bookmark feed