0) {
return array_unique($addresses);
}
// fallback for older Apache httpd versions that do not support email SAN fields
$envNameBase = "SSL_CLIENT_S_DN_Email";
if (array_key_exists($envNameBase, $_SERVER)) {
$addresses[] = $_SERVER[$envNameBase];
}
for ($i = 1; $i <= $maxAddresses; $i++) {
$envName = sprintf("%s_%d", $envNameBase, $i);
if (array_key_exists($envName, $_SERVER)) {
$addresses[] = $_SERVER[$envName];
}
}
return array_unique($addresses);
}
/**
* Checks if the user may log in and retrieve the user id
*
* Usually called with $_SERVER['SSL_CLIENT_M_SERIAL'] and
* $_SERVER['SSL_CLIENT_I_DN_CN']
*
* @param $serial string
* usually $_SERVER['SSL_CLIENT_M_SERIAL']
* @param $issuer_cn string
* usually $_SERVER['SSL_CLIENT_I_DN_CN']
* @param $addresses array
* list of email addresses from the certificate
* @return int
* the user id, -1 in case of error
*
* @see get_email_addresses_from_client_cert()
*/
function get_user_id_from_cert($serial, $issuer_cn, $addresses) {
$addresses_for_sql = array_map('mysql_real_escape_string', $addresses);
$query = sprintf("SELECT DISTINCT ec.`memid`
FROM `emailcerts` ec
JOIN root_certs r ON r.id = ec.rootcert
JOIN email e ON ec.memid = e.memid
WHERE ec.serial = '%s'
AND r.`Cert_Text` = '%s'
AND e.email IN ('%s')
AND ec.revoked = 0
AND ec.disablelogin = 0
AND UNIX_TIMESTAMP(ec.expire) > UNIX_TIMESTAMP()", mysql_real_escape_string($serial),
mysql_real_escape_string($issuer_cn), implode("', '", $addresses_for_sql));
$res = mysql_query($query);
if ($res === false) {
trigger_error(sprintf("MySQL error %d: %s", mysql_errno(), mysql_error()));
return -1;
}
if (mysql_num_rows($res) === 1) {
$row = mysql_fetch_row($res);
return intval($row[0]);
}
return -1;
}
/**
* Produces a log entry with the error message with log level E_USER_WARN
* and a random ID an returns a message that can be displayed to the user
* including the generated ID
*
* @param $errormessage string
* The error message that should be logged
* @return string containing the generated ID that can be displayed to the
* user
*/
function failWithId($errormessage) {
$errorId = rand();
trigger_error("$errormessage. ID: $errorId", E_USER_WARNING);
return sprintf(_("Something went wrong when processing your request. ".
"Please contact %s for help and provide them with the ".
"following ID: %d"),
"support@cacert.org",
$errorId);
}
/**
* Runs a command on the shell and return it's exit code and output
*
* @param string $command
* The command to run. Make sure that you escapeshellarg() any non-constant
* parts as this is executed on a shell!
* @param string|bool $input
* The input that is passed to the command via STDIN, if true the real
* STDIN is passed through
* @param string|bool $output
* The output the command wrote to STDOUT (this is passed as reference),
* if true the output will be written to the real STDOUT. Output is ignored
* by default
* @param string|bool $errors
* The output the command wrote to STDERR (this is passed as reference),
* if true (default) the output will be written to the real STDERR
*
* @return int|bool
* The exit code of the command, true if the execution of the command
* failed (true because then
* if (runCommand('echo "foo"')) handle_error(); will work)
*/
function runCommand($command, $input = "", &$output = null, &$errors = true) {
$descriptorspec = array();
if ($input !== true) {
$descriptorspec[0] = array("pipe", "r"); // STDIN for child
}
if ($output !== true) {
$descriptorspec[1] = array("pipe", "w"); // STDOUT for child
}
if ($errors !== true) {
$descriptorspec[2] = array("pipe", "w"); // STDERR for child
}
$proc = proc_open($command, $descriptorspec, $pipes);
if (is_resource($proc))
{
if ($input !== true) {
fwrite($pipes[0], $input);
fclose($pipes[0]);
}
if ($output !== true) {
$output = stream_get_contents($pipes[1]);
}
if ($errors !== true) {
$errors = stream_get_contents($pipes[2]);
}
return proc_close($proc);
} else {
return true;
}
}
// returns 0 if $userID is an Assurer
// Otherwise :
// Bit 0 is always set
// Bit 1 is set if 100 Assurance Points are not reached
// Bit 2 is set if Assurer Test is missing
// Bit 3 is set if the user is not allowed to be an Assurer (assurer_blocked > 0)
function get_assurer_status($userID)
{
$Result = 0;
$query = mysql_query('SELECT * FROM `cats_passed` AS `tp`, `cats_variant` AS `cv` '.
' WHERE `tp`.`variant_id` = `cv`.`id` AND `cv`.`type_id` = 1 AND `tp`.`user_id` = \''.(int)intval($userID).'\'');
if(mysql_num_rows($query) < 1)
{
$Result |= 5;
}
$query = mysql_query('SELECT SUM(`points`) AS `points` FROM `notary` AS `n` WHERE `n`.`to` = \''.(int)intval($userID).'\' AND `n`.`expire` < now() and `deleted` = 0');
$row = mysql_fetch_assoc($query);
if ($row['points'] < 100) {
$Result |= 3;
}
$query = mysql_query('SELECT `assurer_blocked` FROM `users` WHERE `id` = \''.(int)intval($userID).'\'');
$row = mysql_fetch_assoc($query);
if ($row['assurer_blocked'] > 0) {
$Result |= 9;
}
return $Result;
}