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Suppress warning errors and check the environment before using ldap functions

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Alex Tselegidis 2024-05-20 11:57:54 +02:00
parent e4cc2fc760
commit 3f39861e4a
1 changed files with 32 additions and 20 deletions
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52
application/libraries/Ldap_client.php
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@ -84,9 +84,7 @@ class Ldap_client
// Check LDAP environment and configuration
if (!extension_loaded('ldap')) {
throw new RuntimeException('The LDAP extension is not loaded.');
}
$this->check_environment();
$ldap_is_active = setting('ldap_is_active');
@ -109,32 +107,32 @@ class Ldap_client
$user_dn = setting('ldap_user_dn');
$ldap_password = setting('ldap_password');
$connection = ldap_connect($host, $port);
$connection = @ldap_connect($host, $port);
if (!$connection) {
throw new Exception('Could not connect to LDAP server: ' . ldap_error($connection));
throw new Exception('Could not connect to LDAP server: ' . @ldap_error($connection));
}
ldap_set_option($connection, LDAP_OPT_PROTOCOL_VERSION, 3);
ldap_set_option($connection, LDAP_OPT_REFERRALS, 0); // We need this for doing an LDAP search.
@ldap_set_option($connection, LDAP_OPT_PROTOCOL_VERSION, 3);
@ldap_set_option($connection, LDAP_OPT_REFERRALS, 0); // We need this for doing an LDAP search.
$bind = ldap_bind($connection, $user_dn, $ldap_password);
$bind = @ldap_bind($connection, $user_dn, $ldap_password);
if (!$bind) {
throw new Exception('LDAP bind failed: ' . ldap_error($connection));
throw new Exception('LDAP bind failed: ' . @ldap_error($connection));
}
// Check the provided password against the LDAP service
$filter = '(objectclass=*)';
$result = ldap_search($connection, $user['ldap_dn'], $filter);
$result = @ldap_search($connection, $user['ldap_dn'], $filter);
if (!$result) {
return null;
}
$ldap_entries = ldap_get_entries($connection, $result);
$ldap_entries = @ldap_get_entries($connection, $result);
foreach ($ldap_entries as $ldap_entry) {
if (!is_array($ldap_entry) || empty($ldap_entry['dn']) || $ldap_entry['dn'] !== $user['ldap_dn']) {
@ -173,6 +171,8 @@ class Ldap_client
*/
public function search(string $keyword): array
{
$this->check_environment();
$host = setting('ldap_host');
$port = (int) setting('ldap_port');
$user_dn = setting('ldap_user_dn');
@ -180,32 +180,32 @@ class Ldap_client
$base_dn = setting('ldap_base_dn');
$filter = setting('ldap_filter');
$connection = ldap_connect($host, $port);
$connection = @ldap_connect($host, $port);
if (!$connection) {
throw new Exception('Could not connect to LDAP server: ' . ldap_error($connection));
throw new Exception('Could not connect to LDAP server: ' . @ldap_error($connection));
}
ldap_set_option($connection, LDAP_OPT_PROTOCOL_VERSION, 3);
ldap_set_option($connection, LDAP_OPT_REFERRALS, 0); // We need this for doing an LDAP search.
@ldap_set_option($connection, LDAP_OPT_PROTOCOL_VERSION, 3);
@ldap_set_option($connection, LDAP_OPT_REFERRALS, 0); // We need this for doing an LDAP search.
$bind = ldap_bind($connection, $user_dn, $password);
$bind = @ldap_bind($connection, $user_dn, $password);
if (!$bind) {
throw new Exception('LDAP bind failed: ' . ldap_error($connection));
throw new Exception('LDAP bind failed: ' . @ldap_error($connection));
}
$wildcard_keyword = !empty($keyword) ? '*' . $keyword . '*' : '*';
$interpolated_filter = str_replace('{{KEYWORD}}', $wildcard_keyword, $filter);
$result = ldap_search($connection, $base_dn, $interpolated_filter);
$result = @ldap_search($connection, $base_dn, $interpolated_filter);
if (!$result) {
throw new Exception('Search failed: ' . ldap_error($connection));
throw new Exception('Search failed: ' . @ldap_error($connection));
}
$ldap_entries = ldap_get_entries($connection, $result);
$ldap_entries = @ldap_get_entries($connection, $result);
// Flatten the LDAP entries so that they become easier to import
@ -233,4 +233,16 @@ class Ldap_client
return $entries;
}
/**
* Check if the ldap extension is installed
*
* @return void
*/
private function check_environment(): void
{
if (!extension_loaded('ldap')) {
throw new RuntimeException('The LDAP extension is not loaded.');
}
}
}