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<?php
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/**
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* @file
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32700c57
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Assos Assos
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* Collection of functions that don't belong in server object.
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85ad3d82
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Assos Assos
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*/
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/**
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9 |
32700c57
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Assos Assos
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* Modify an LDAP Entry.
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*
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* @deprecated This has been deprecated in favor of
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12 |
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* `$ldap_server->modifyLdapEntry($dn, $attributes)` which handles empty
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* attributes better.
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*/
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Assos Assos
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function ldap_user_modify($dn, $attributes, $ldap_server) {
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16 |
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$result = ldap_modify($ldap_server->connection, $dn, $attributes);
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if (!$result) {
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91af538d
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Assos Assos
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$error = "LDAP Server ldap_modify(%dn) in ldap_user_modify(), LDAP Err No: %ldap_errno LDAP Err Message: %ldap_err2str ";
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19 |
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$tokens = ['%dn' => $dn, '%ldap_errno' => ldap_errno($ldap_server->connection), '%ldap_err2str' => ldap_err2str(ldap_errno($ldap_server->connection))];
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watchdog('ldap_servers', $error, $tokens, WATCHDOG_ERROR);
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}
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return $result;
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}
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/**
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* Modify a password.
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*/
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function ldap_password_modify($userdn, $new_password, $ldap_server) {
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$new_password = "\"" . $new_password . "\"";
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31 |
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$len = drupal_strlen($new_password);
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$new_pass = NULL;
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for ($i = 0; $i < $len; $i++) {
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$new_pass .= "{$new_password[$i]}\000";
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}
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$status = ldap_mod_replace($ldap_server->connection, $userdn, ['unicodePwd' => $new_pass]);
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85ad3d82
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Assos Assos
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if (!$status) {
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39 |
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watchdog(
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'ldap_servers',
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'Error: password_modify() failed to modify ldap password w/ base DN "!dn"',
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['!dn' => $userdn],
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85ad3d82
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WATCHDOG_ERROR
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);
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}
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return $status;
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}
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be58a50c
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/**
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* Converts a password to the format that Active Directory supports (for the
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be58a50c
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* purpose of changing or setting). Note that AD needs the field to be called
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* unicodePwd (as opposed to userPassword)
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*
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* @param string $password
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* The password that is being formatted for Active Directory unicodePwd field.
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*
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* @return string
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* $password surrounded with quotes and in UTF-16LE encoding
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*/
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function ldap_servers_convert_password_for_active_directory_unicodePwd($password) {
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// This function can be called with $attributes['unicodePwd'] as an array.
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if (!is_array($password)) {
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return mb_convert_encoding("\"{$password}\"", "UTF-16LE");
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}
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else {
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// Presumably there is no use case for there being more than one password in
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// the $attributes array, hence it will be at index 0 and we return in kind.
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return [mb_convert_encoding("\"{$password[0]}\"", "UTF-16LE")];
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}
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}
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/**
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* This attempts to find bad dns, but should only be used as warnings
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* as the ldap spec allows for any old character to be escaped and ldap
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* implementations may not follow the spec.
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*
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* Http://www.ietf.org/rfc/rfc2253.txt.
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*/
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function ldap_baddn($dn, $dn_name) {
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$result = [];
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$valid_attr_name = '[_a-zA-Z\d\s]';
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$valid_attr_values = '[_\-a-zA-Z\d\s]';
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$regex = '/^(' . $valid_attr_name . '*\=' . $valid_attr_values . '*[,]{1})*(' . $valid_attr_name . '*\=' . $valid_attr_values . '*){1}$/';
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$match = (preg_match($regex, $dn)) ? TRUE : FALSE;
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$result['boolean'] = $match;
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if (!$match) {
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$tokens = ['%dn' => htmlspecialchars($dn), '%dn_name' => $dn_name];
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$result['text'] = t('Possible invalid format for:', $tokens)
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. '<em>' . $tokens['%dn'] . '</em>.<br/> ' .
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t('The format may be correct for your ldap, but please double check.', $tokens);
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}
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return $result;
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94 |
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}
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/**
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97 |
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Assos Assos
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* This attempts to find bad dns, but should only be used as warningswe
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98 |
85ad3d82
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Assos Assos
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* as the ldap spec allows for any old character to be escaped and ldap
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99 |
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* implementations may not follow the spec.
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100 |
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*
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101 |
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* Http://www.ietf.org/rfc/rfc2253.txt.
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102 |
85ad3d82
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*/
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103 |
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function ldap_badattr($attr, $attr_name) {
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104 |
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$result = [];
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$valid_attr_name = '[_a-zA-Z\d\s]';
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106 |
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$regex = '/^(' . $valid_attr_name . '){1,}$/';
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107 |
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$match = (preg_match($regex, $attr)) ? TRUE : FALSE;
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108 |
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$result['boolean'] = $match;
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109 |
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if (!$match) {
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110 |
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Assos Assos
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$tokens = ['%attr' => htmlspecialchars($attr), '%attr_name' => $attr_name];
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111 |
85ad3d82
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Assos Assos
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$result['text'] = t('Possible invalid format for %attr_name:', $tokens) . ' <code><em>' . $tokens['%attr']
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112 |
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. '</em></code><br/>' . t('The format may be correct for your ldap, but please double check.', $tokens);
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113 |
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}
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114 |
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return $result;
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115 |
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}
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116 |
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117 |
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/**
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118 |
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Assos Assos
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* Get array of required attributes for an ldap query.
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119 |
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*
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120 |
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* @param string $sid
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121 |
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* server id or ldap server object being used.
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122 |
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* @param string $direction
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123 |
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* LDAP_USER_PROV_DIRECTION_* constant.
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124 |
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* @param string $ldap_context
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125 |
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* @param bool $reset
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126 |
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* cache.
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127 |
85ad3d82
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Assos Assos
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*/
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128 |
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function ldap_servers_attributes_needed($sid, $ldap_context = 'all', $reset = TRUE) {
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129 |
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130 |
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static $attributes;
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131 |
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$sid = is_object($sid) ? $sid->sid : $sid;
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132 |
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$static_cache_id = ($sid) ? $ldap_context . '__' . $sid : $ldap_context;
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133 |
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if (!is_array($attributes)) {
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134 |
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Assos Assos
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$attributes = [];
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135 |
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Assos Assos
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}
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136 |
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if (!isset($attributes[$static_cache_id]) || $reset) {
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137 |
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$params = [
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138 |
85ad3d82
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Assos Assos
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'sid' => $sid,
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139 |
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'ldap_context' => $ldap_context,
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140 |
32700c57
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Assos Assos
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];
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141 |
85ad3d82
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Assos Assos
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drupal_alter('ldap_attributes_needed', $attributes[$static_cache_id], $params);
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142 |
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}
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143 |
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$return = $attributes[$static_cache_id];
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144 |
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145 |
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return $return;
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146 |
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}
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147 |
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148 |
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/**
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149 |
32700c57
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Assos Assos
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* Function to massage (change case, escape, unescape) ldap attribute names
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150 |
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* and values. The primary purpose of this is to articulate and ensure
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151 |
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* consistency across ldap modules.
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152 |
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*
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153 |
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* @param mixed $value
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154 |
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* to be massaged.
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155 |
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* @param string $value_type
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156 |
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* = 'attr_name' or 'attr_value;.
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157 |
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* @param enum $context
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158 |
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* ...see LDAP_SERVER_MASSAGE_* constants
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159 |
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Assos Assos
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*
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160 |
32700c57
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Assos Assos
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* .e.g. ldap_server_massage_text($value, 'attr_value',
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161 |
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* LDAP_SERVER_MASSAGE_QUERY_LDAP)
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162 |
85ad3d82
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Assos Assos
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*
|
163 |
32700c57
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Assos Assos
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* @return array|mixed|string
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164 |
85ad3d82
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Assos Assos
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*/
|
165 |
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function ldap_server_massage_text($value, $value_type, $context) {
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166 |
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|
167 |
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$scalar = is_scalar($value);
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168 |
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|
169 |
|
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if ($value_type == 'attr_value') {
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170 |
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|
171 |
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if ($context == LDAP_SERVER_MASSAGE_QUERY_LDAP) {
|
172 |
|
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$value = ldap_pear_escape_filter_value($value);
|
173 |
|
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}
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174 |
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elseif ($context == LDAP_SERVER_MASSAGE_STORE_LDAP) {
|
175 |
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$value = ldap_pear_escape_dn_value($value);
|
176 |
|
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}
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177 |
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|
178 |
|
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switch ($context) {
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179 |
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|
180 |
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case LDAP_SERVER_MASSAGE_DISPLAY:
|
181 |
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case LDAP_SERVER_MASSAGE_TOKEN_REPLACE:
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182 |
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183 |
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case LDAP_SERVER_MASSAGE_QUERY_LDAP:
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184 |
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case LDAP_SERVER_MASSAGE_QUERY_DB:
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185 |
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case LDAP_SERVER_MASSAGE_QUERY_ARRAY:
|
186 |
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case LDAP_SERVER_MASSAGE_QUERY_PROPERTY:
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187 |
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188 |
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case LDAP_SERVER_MASSAGE_STORE_LDAP:
|
189 |
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case LDAP_SERVER_MASSAGE_STORE_DB:
|
190 |
|
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case LDAP_SERVER_MASSAGE_STORE_ARRAY:
|
191 |
|
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case LDAP_SERVER_MASSAGE_STORE_PROPERTY:
|
192 |
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|
193 |
32700c57
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Assos Assos
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break;
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194 |
85ad3d82
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Assos Assos
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|
195 |
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}
|
196 |
|
|
}
|
197 |
32700c57
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Assos Assos
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// attr_name.
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198 |
|
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elseif ($value_type == 'attr_name') {
|
199 |
85ad3d82
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Assos Assos
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switch ($context) {
|
200 |
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|
201 |
|
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case LDAP_SERVER_MASSAGE_DISPLAY:
|
202 |
32700c57
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Assos Assos
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break;
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203 |
85ad3d82
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Assos Assos
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|
204 |
|
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case LDAP_SERVER_MASSAGE_TOKEN_REPLACE:
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205 |
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|
206 |
|
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case LDAP_SERVER_MASSAGE_QUERY_LDAP:
|
207 |
|
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case LDAP_SERVER_MASSAGE_QUERY_DB:
|
208 |
|
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case LDAP_SERVER_MASSAGE_QUERY_ARRAY:
|
209 |
|
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case LDAP_SERVER_MASSAGE_QUERY_PROPERTY:
|
210 |
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|
211 |
|
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case LDAP_SERVER_MASSAGE_STORE_LDAP:
|
212 |
|
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case LDAP_SERVER_MASSAGE_STORE_DB:
|
213 |
|
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case LDAP_SERVER_MASSAGE_STORE_ARRAY:
|
214 |
|
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case LDAP_SERVER_MASSAGE_STORE_PROPERTY:
|
215 |
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if ($scalar) {
|
216 |
|
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$value = drupal_strtolower($value);
|
217 |
|
|
}
|
218 |
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elseif (is_array($value)) {
|
219 |
|
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foreach ($value as $i => $val) {
|
220 |
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$value[$i] = drupal_strtolower($val);
|
221 |
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}
|
222 |
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}
|
223 |
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else {
|
224 |
32700c57
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Assos Assos
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// Neither scalar nor array $value.
|
225 |
85ad3d82
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Assos Assos
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}
|
226 |
32700c57
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Assos Assos
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break;
|
227 |
85ad3d82
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Assos Assos
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|
228 |
|
|
}
|
229 |
|
|
}
|
230 |
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|
231 |
|
|
return $value;
|
232 |
|
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|
233 |
|
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}
|
234 |
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|
235 |
32700c57
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Assos Assos
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/**
|
236 |
|
|
* From pear net_ldap2-2.0.11.
|
237 |
|
|
*
|
238 |
|
|
* Escapes the given VALUES according to RFC 2254 so that they can be safely used in LDAP filters.
|
239 |
|
|
*
|
240 |
|
|
* Any control characters with an ACII code < 32 as well as the characters with special meaning in
|
241 |
|
|
* LDAP filters "*", "(", ")", and "\" (the backslash) are converted into the representation of a
|
242 |
|
|
* backslash followed by two hex digits representing the hexadecimal value of the character.
|
243 |
|
|
*
|
244 |
|
|
* @param array $values
|
245 |
|
|
* Array of values to escape.
|
246 |
|
|
*
|
247 |
|
|
* @static
|
248 |
|
|
*
|
249 |
|
|
* @return array Array $values, but escaped
|
250 |
|
|
*/
|
251 |
|
|
function ldap_pear_escape_filter_value($values = []) {
|
252 |
|
|
// Parameter validation.
|
253 |
|
|
$is_scalar = is_scalar($values);
|
254 |
|
|
if ($is_scalar) {
|
255 |
|
|
$values = [$values];
|
256 |
|
|
}
|
257 |
|
|
if ($values === NULL) {
|
258 |
|
|
return NULL;
|
259 |
|
|
}
|
260 |
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Assos Assos
|
|
261 |
32700c57
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Assos Assos
|
foreach ($values as $key => $val) {
|
262 |
|
|
// Escaping of filter meta characters.
|
263 |
|
|
$val = str_replace('\\', '\5c', $val);
|
264 |
|
|
$val = str_replace('*', '\2a', $val);
|
265 |
|
|
$val = str_replace('(', '\28', $val);
|
266 |
|
|
$val = str_replace(')', '\29', $val);
|
267 |
85ad3d82
|
Assos Assos
|
|
268 |
32700c57
|
Assos Assos
|
// ASCII < 32 escaping.
|
269 |
|
|
$val = ldap_pear_asc2hex32($val);
|
270 |
85ad3d82
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Assos Assos
|
|
271 |
32700c57
|
Assos Assos
|
if (NULL === $val) {
|
272 |
|
|
$val = '\0';
|
273 |
|
|
} // apply escaped "null" if string is empty
|
274 |
85ad3d82
|
Assos Assos
|
|
275 |
32700c57
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Assos Assos
|
$values[$key] = $val;
|
276 |
|
|
}
|
277 |
85ad3d82
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Assos Assos
|
|
278 |
32700c57
|
Assos Assos
|
return ($is_scalar) ? $values[0] : $values;
|
279 |
|
|
}
|
280 |
85ad3d82
|
Assos Assos
|
|
281 |
32700c57
|
Assos Assos
|
/**
|
282 |
|
|
* Undoes the conversion done by {@link escape_filter_value()}.
|
283 |
|
|
*
|
284 |
|
|
* Converts any sequences of a backslash followed by two hex digits into the corresponding character.
|
285 |
|
|
*
|
286 |
|
|
* @param array $values
|
287 |
|
|
* Array of values to escape.
|
288 |
|
|
*
|
289 |
|
|
* @static
|
290 |
|
|
*
|
291 |
|
|
* @return array Array $values, but unescaped
|
292 |
|
|
*/
|
293 |
|
|
function ldap_pear_unescape_filter_value($values = []) {
|
294 |
|
|
// Parameter validation.
|
295 |
|
|
$is_scalar = is_scalar($values);
|
296 |
|
|
if (!is_array($values)) {
|
297 |
|
|
$values = [$values];
|
298 |
|
|
}
|
299 |
85ad3d82
|
Assos Assos
|
|
300 |
32700c57
|
Assos Assos
|
foreach ($values as $key => $value) {
|
301 |
|
|
// Translate hex code into ascii.
|
302 |
|
|
$values[$key] = ldap_pear_hex2asc($value);
|
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}
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return ($is_scalar) ? $values[0] : $values;
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}
|
307 |
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308 |
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/**
|
309 |
|
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* Escapes a DN value according to RFC 2253.
|
310 |
|
|
*
|
311 |
|
|
* Escapes the given VALUES according to RFC 2253 so that they can be safely used in LDAP DNs.
|
312 |
|
|
* The characters ",", "+", """, "\", "<", ">", ";", "#", "=" with a special meaning in RFC 2252
|
313 |
|
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* are preceeded by ba backslash. Control characters with an ASCII code < 32 are represented as \hexpair.
|
314 |
|
|
* Finally all leading and trailing spaces are converted to sequences of \20.
|
315 |
|
|
*
|
316 |
|
|
* @param array $values
|
317 |
|
|
* An array containing the DN values that should be escaped.
|
318 |
|
|
*
|
319 |
|
|
* @static
|
320 |
|
|
*
|
321 |
|
|
* @return array The array $values, but escaped
|
322 |
|
|
*/
|
323 |
|
|
function ldap_pear_escape_dn_value($values = []) {
|
324 |
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// Parameter validation.
|
325 |
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$is_scalar = is_scalar($values);
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|
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if (!is_array($values)) {
|
328 |
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|
$values = [$values];
|
329 |
|
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}
|
330 |
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|
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foreach ($values as $key => $val) {
|
332 |
|
|
// Escaping of filter meta characters.
|
333 |
|
|
$val = str_replace('\\', '\\\\', $val);
|
334 |
|
|
$val = str_replace(',', '\,', $val);
|
335 |
|
|
$val = str_replace('+', '\+', $val);
|
336 |
|
|
$val = str_replace('"', '\"', $val);
|
337 |
|
|
$val = str_replace('<', '\<', $val);
|
338 |
|
|
$val = str_replace('>', '\>', $val);
|
339 |
|
|
$val = str_replace(';', '\;', $val);
|
340 |
|
|
$val = str_replace('#', '\#', $val);
|
341 |
|
|
$val = str_replace('=', '\=', $val);
|
342 |
|
|
|
343 |
|
|
// ASCII < 32 escaping.
|
344 |
|
|
$val = ldap_pear_asc2hex32($val);
|
345 |
|
|
|
346 |
|
|
// Convert all leading and trailing spaces to sequences of \20.
|
347 |
|
|
if (preg_match('/^(\s*)(.+?)(\s*)$/', $val, $matches)) {
|
348 |
|
|
$val = $matches[2];
|
349 |
|
|
for ($i = 0; $i < strlen($matches[1]); $i++) {
|
350 |
|
|
$val = '\20' . $val;
|
351 |
|
|
}
|
352 |
|
|
for ($i = 0; $i < strlen($matches[3]); $i++) {
|
353 |
|
|
$val = $val . '\20';
|
354 |
|
|
}
|
355 |
85ad3d82
|
Assos Assos
|
}
|
356 |
|
|
|
357 |
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|
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|
// Apply escaped "null" if string is empty.
|
358 |
|
|
if (NULL === $val) {
|
359 |
|
|
$val = '\0';
|
360 |
|
|
}
|
361 |
85ad3d82
|
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|
|
362 |
32700c57
|
Assos Assos
|
$values[$key] = $val;
|
363 |
|
|
}
|
364 |
85ad3d82
|
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|
|
365 |
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|
Assos Assos
|
return ($is_scalar) ? $values[0] : $values;
|
366 |
|
|
}
|
367 |
85ad3d82
|
Assos Assos
|
|
368 |
32700c57
|
Assos Assos
|
/**
|
369 |
|
|
* Undoes the conversion done by escape_dn_value().
|
370 |
|
|
*
|
371 |
|
|
* Any escape sequence starting with a baskslash - hexpair or special character -
|
372 |
|
|
* will be transformed back to the corresponding character.
|
373 |
|
|
*
|
374 |
|
|
* @param array $values
|
375 |
|
|
* Array of DN Values.
|
376 |
|
|
*
|
377 |
|
|
* @return array Same as $values, but unescaped
|
378 |
|
|
*
|
379 |
|
|
* @static
|
380 |
|
|
*/
|
381 |
|
|
function ldap_pear_unescape_dn_value($values = []) {
|
382 |
|
|
$is_scalar = is_scalar($values);
|
383 |
85ad3d82
|
Assos Assos
|
|
384 |
32700c57
|
Assos Assos
|
// Parameter validation.
|
385 |
|
|
if (!is_array($values)) {
|
386 |
|
|
$values = [$values];
|
387 |
|
|
}
|
388 |
85ad3d82
|
Assos Assos
|
|
389 |
32700c57
|
Assos Assos
|
foreach ($values as $key => $val) {
|
390 |
|
|
// Strip slashes from special chars.
|
391 |
|
|
$val = str_replace('\\\\', '\\', $val);
|
392 |
|
|
$val = str_replace('\,', ',', $val);
|
393 |
|
|
$val = str_replace('\+', '+', $val);
|
394 |
|
|
$val = str_replace('\"', '"', $val);
|
395 |
|
|
$val = str_replace('\<', '<', $val);
|
396 |
|
|
$val = str_replace('\>', '>', $val);
|
397 |
|
|
$val = str_replace('\;', ';', $val);
|
398 |
|
|
$val = str_replace('\#', '#', $val);
|
399 |
|
|
$val = str_replace('\=', '=', $val);
|
400 |
|
|
|
401 |
|
|
// Translate hex code into ascii.
|
402 |
|
|
$values[$key] = ldap_pear_hex2asc($val);
|
403 |
|
|
}
|
404 |
dd54aff9
|
Assos Assos
|
|
405 |
32700c57
|
Assos Assos
|
return ($is_scalar) ? $values[0] : $values;
|
406 |
|
|
}
|
407 |
5136ce55
|
Assos Assos
|
|
408 |
32700c57
|
Assos Assos
|
/**
|
409 |
|
|
* Converts all Hex expressions ("\HEX") to their original ASCII characters.
|
410 |
|
|
*
|
411 |
|
|
* @param string $string
|
412 |
|
|
* String to convert.
|
413 |
|
|
*
|
414 |
|
|
* @static
|
415 |
|
|
* @author beni@php.net, heavily based on work from DavidSmith@byu.net
|
416 |
|
|
*
|
417 |
|
|
* @return string
|
418 |
|
|
*/
|
419 |
|
|
function ldap_pear_hex2asc($string) {
|
420 |
91af538d
|
Assos Assos
|
$string = preg_replace_callback(
|
421 |
32700c57
|
Assos Assos
|
"/\\\([0-9A-Fa-f]{2})/",
|
422 |
|
|
function ($m) {
|
423 |
|
|
return chr(hexdec($m[1]));
|
424 |
|
|
},
|
425 |
91af538d
|
Assos Assos
|
$string
|
426 |
|
|
);
|
427 |
32700c57
|
Assos Assos
|
return $string;
|
428 |
|
|
}
|
429 |
85ad3d82
|
Assos Assos
|
|
430 |
32700c57
|
Assos Assos
|
/**
|
431 |
|
|
* Converts all ASCII chars < 32 to "\HEX".
|
432 |
|
|
*
|
433 |
|
|
* @param string $string
|
434 |
|
|
* String to convert.
|
435 |
|
|
*
|
436 |
|
|
* @static
|
437 |
|
|
*
|
438 |
|
|
* @return string
|
439 |
|
|
*/
|
440 |
|
|
function ldap_pear_asc2hex32($string) {
|
441 |
|
|
for ($i = 0; $i < strlen($string); $i++) {
|
442 |
|
|
$char = substr($string, $i, 1);
|
443 |
|
|
if (ord($char) < 32) {
|
444 |
|
|
$hex = dechex(ord($char));
|
445 |
|
|
if (strlen($hex) == 1) {
|
446 |
|
|
$hex = '0' . $hex;
|
447 |
|
|
}
|
448 |
|
|
$string = str_replace($char, '\\' . $hex, $string);
|
449 |
85ad3d82
|
Assos Assos
|
}
|
450 |
32700c57
|
Assos Assos
|
}
|
451 |
|
|
return $string;
|
452 |
|
|
} |