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<?php |
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namespace CILogon\Service; |
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use CILogon\Service\Util; |
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use CILogon\Service\Content; |
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use CILogon\Service\DuoConfig; |
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use Duo\Web; |
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use Endroid\QrCode\QrCode; |
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use PHPGangsta_GoogleAuthenticator; |
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/** |
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* TwoFactor |
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* |
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* This class contains a bunch of static (class) methods |
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* for handling two-factor authentication. Information about which |
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* methods are registered and/or enabled is stored in the datastore. |
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* However, to speed access to the two-factor information, the session |
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* variable 'twofactor' contains the current state. To populate the |
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* 'twofactor' session variable, call the read() method. This is done |
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* (automatically) by the 'getuser' and 'getopeniduser' servlets when |
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* the user logs on. If changes are made to the 'twofactor' session |
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* variable, call the write() method to save the new state to the |
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* datastore. |
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*/ |
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class TwoFactor |
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{ |
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/** |
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* read |
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* |
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* This method reads the two-factor information from the database |
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* for the current 'uid' session variable. The result is stored in |
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* the 'twofactor' session variable. If the 'uid' session variable |
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* is not set, or if there is a problem reading from the database, |
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* false is returned. Note that this function isn't really needed |
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* since the 'twofactor' session variable is set when the database |
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* servlet function 'getUser' is called. |
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* |
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* @return bool True if read two-factor info from database and saved |
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* in 'twofactor' session variable. False otherwise. |
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*/ |
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public static function read() |
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{ |
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$retval = false; // Assume read failed |
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$uid = Util::getSessionVar('uid'); |
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if (strlen($uid) > 0) { |
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$dbs = new DBService(); |
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$retval = $dbs->getTwoFactorInfo($uid); |
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if ($retval) { |
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Util::setSessionVar('twofactor', $dbs->two_factor); |
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} |
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} |
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return $retval; |
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} |
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/** |
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* write |
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* |
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* This method writes the 'twofactor' session variable to the |
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* database for the current 'uid' session variable. If the 'uid' |
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* session variable is not set, or if there is a problem writing |
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* to the database, false is returned. Note that this simply saves |
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* two-factor info to the database. You need to use other methods |
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* to maintain/update the 'twofactor' session variable. |
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* |
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* @return bool True if successfully wrote 'twofactor' session |
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* variable to database. False otherwise. |
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*/ |
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public static function write() |
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{ |
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$retval = false; // Assume write failed |
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$uid = Util::getSessionVar('uid'); |
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if (strlen($uid) > 0) { |
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$dbs = new DBService(); |
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$retval = $dbs->setTwoFactorInfo( |
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$uid, |
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Util::getSessionVar('twofactor') |
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); |
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} |
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return $retval; |
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} |
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/** |
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* setSessVar |
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* |
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* This method takes in a 'key' and a 'val' to set 'key=val' in the |
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* 'twofactor' session variable. If 'val' is empty, then any |
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* existing 'key=...' entry is deleted. (Thus there are no null |
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* entries in 'twofactor' such as 'duo='.) The final result is |
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* saved back to the 'twofactor' session variable. |
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* |
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* @param string $key The key in 'key=val' in the 'twofactor' session |
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* variable. |
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* @param string $val The val in 'key=val' in the 'twofactor' session |
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* variable. If 'val' is the emtpy string, then remove any |
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* existing 'key=...' entries. |
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*/ |
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private static function setSessVar($key, $val) |
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{ |
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$twofactor = Util::getSessionVar('twofactor'); |
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// Check if $key=... is present in 'twofactor' session variable |
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if (preg_match("/$key=([^,]*)/", $twofactor, $match)) { |
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$oldval = $match[1]; // Keep the old value |
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if (strlen($val) > 0) { // If new val is not empty, set key=val |
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$twofactor = preg_replace( |
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"/$key=$oldval/", |
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"$key=$val", |
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$twofactor |
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); |
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} else { // New val is empty, delete key=oldval (plus commas) |
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$twofactor = preg_replace("/$key=$oldval,?/", '', $twofactor); |
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// Remove trailing comma if deleted last key=oldval pair |
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$twofactor = preg_replace('/,$/', '', $twofactor); |
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} |
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} else { // $key does not exist in 'twofactor' session variable |
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if (strlen($val) > 0) { // Make sure $val is not empty |
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if (strlen($twofactor) > 0) { // Append comma if other info |
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$twofactor .= ','; |
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} |
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$twofactor .= "$key=$val"; |
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} |
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} |
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Util::setSessionVar('twofactor', $twofactor); |
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} |
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/** |
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* getSessVar |
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* |
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* This method looks in the 'twofactor' session variable for a |
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* 'key=val' pair and returns 'val'. If no such pair is found, then |
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* empty string is returned. |
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* |
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* @param string $key The key to look for in the 'twofactor' session |
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* variable. |
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* @return string The val for 'key=val' in the 'twofactor' session |
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* variable, or empty string if no such 'key' found. |
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*/ |
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private static function getSessVar($key) |
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{ |
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$retval = ''; |
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$twofactor = Util::getSessionVar('twofactor'); |
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if (preg_match("/$key=([^,]*)/", $twofactor, $match)) { |
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$retval = $match[1]; |
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} |
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return $retval; |
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} |
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/** |
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* setRegister |
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* |
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* This method sets '$tftype=$key' in the 'twofactor' session |
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* variable. If $key is empty, it UNverifies the $tftype and then |
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* deletes the current '$tftype=...' (if any) from the 'twofactor' |
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* session variable. Also, if $key is empty, check if $tftype is |
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* currently 'enabled'. If so, set 'enabled' to 'none'. |
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* |
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* @param string $tftype: The two-factor type to set, e.g., 'ga' for |
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* Google Authenticator. |
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* @param string $key The secret registration key to set for the |
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* two-factor type. Empty string implies unregister |
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* the $tftype. |
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*/ |
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public static function setRegister($tftype, $key) |
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{ |
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// When deleting the key for tftype, also UNverify and disable. |
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if (strlen($key) == 0) { |
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self::setVerified($tftype, false); |
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if (self::isEnabled($tftype)) { |
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self::setDisabled($tftype, false); |
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} |
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} |
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self::setSessVar($tftype, $key); |
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} |
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/** |
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* getRegister |
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* |
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* This method looks for '$tftype=...' in the 'twofactor' session |
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* variable, and returns the '...'. If no such $tftype is found, |
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* empty string is returned. |
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* |
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* @param string $tftype The two-factor type to query, e.g., 'ga' for |
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* Google Authenticator. |
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* @return string The secret registration key for the given two-factor |
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* type, or emtpy string if not set. |
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*/ |
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public static function getRegister($tftype) |
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{ |
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return self::getSessVar($tftype); |
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} |
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/** |
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* isRegistered |
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* |
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* This method is a convenience function to check if '$tftype=...' |
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* is present in the 'twofactor' session variable. It does this |
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* by checking if the string length of the $tftype key is non-zero. |
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* |
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* @param string $tftype The two-factor type to query, e.g., 'ga'. |
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* @return bool True if '$tftype=...' is found in the 'twofactor' |
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* session variable. False otherwise. |
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*/ |
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public static function isRegistered($tftype) |
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{ |
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return (strlen(self::getRegister($tftype)) > 0); |
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} |
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/** |
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* setEnabled |
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* |
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* This method sets the 'enabled' entry in the 'twofactor' session |
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* variable. It first checks if the $tftype is registered. If so, |
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* it then checks if the $tftype is not currently enabled. If both |
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* conditions are true, then set 'enabled' to $tftype. |
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* |
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* @param string $tftype The two-factor type two set enabled, e.g., 'ga'. |
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*/ |
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public static function setEnabled($tftype) |
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{ |
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if ((self::isRegistered($tftype)) && (!self::isEnabled($tftype))) { |
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self::setSessVar('en', $tftype); |
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} |
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} |
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/** |
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* setDisabled |
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* |
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* This method sets the 'enabled' entry in the 'twofactor' session |
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* variable to 'none'. |
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*/ |
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public static function setDisabled() |
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{ |
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self::setSessVar('en', 'none'); |
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} |
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/** |
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* getEnabled |
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* |
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* This function queries the 'enabled' session variable to find out |
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* which two factor method is enabled (if any). It returns the |
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* the enabled two factor method, or 'none' if nothing is enabled. |
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* |
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* @return string The two factor method, or 'none' if not enabled. |
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*/ |
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public static function getEnabled() |
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{ |
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$enabled = 'none'; // Default |
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$enabledvar = self::getSessVar('en'); |
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if (strlen($enabledvar) > 0) { |
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$enabled = $enabledvar; |
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} |
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return $enabled; |
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} |
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255
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/** |
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* getEnabledName |
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* |
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* This function queries the 'enabled' session variable and returns |
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* the 'pretty print' name of the enabled two factor method. If |
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* a parameter is specified (i.e. the result of calling getEnabled), |
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* then this method simply returns the 'pretty print' name of that |
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* two factor type. |
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* |
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* @param string $enabled (Optional) The short enabled two factor string. |
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*/ |
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public static function getEnabledName($enabled = null) |
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{ |
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$name = ''; |
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if (is_null($enabled)) { // No parameter means call getEnabled() |
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$enabled = self::getEnabled(); |
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} |
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switch ($enabled) { |
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case 'ga': |
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$name = 'Google Authenticator'; |
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break; |
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case 'duo': |
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$name = 'Duo Security'; |
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break; |
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default: |
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$name = 'Disabled'; |
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break; |
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} |
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return $name; |
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} |
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286
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/** |
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* isEnabled |
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* |
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* This method looks in the 'twofactor' session variable for the |
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* 'en=...' entry. If this matches the passed-in $tftype, |
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* true is returned. Otherwise, false is returned. |
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* |
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* @param string $tftype The two-factor type to query, e.g., 'ga'. |
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* @return bool True if the $tftype is found enabled in the |
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* 'twofactor' session variable. False otherwise. |
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*/ |
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public static function isEnabled($tftype) |
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{ |
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return (self::getSessVar('en') == $tftype); |
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} |
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/** |
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* setVerified |
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* |
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* This method sets a 'verified' entry for the given $tftype to |
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* '1' (for $verified=true) or deletes the verified entry (for |
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* $verified=false). The verified entry in the 'twofactor' session |
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* variable is the $tftype concatenated with '-v'. So the entry in |
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* the 'twofactor' session variable looks like 'ga-v=1'. This |
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* method first checks if the given $tftype is registered. If so, |
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* then it sets verified appropriately. |
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* |
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* @param string $tftype: The two-factor type two set verified, e.g., 'ga'. |
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* @param bool $verified (Optional) True for set verified, false for set |
|
315
|
|
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* unverified. Defaults to true. |
|
316
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|
|
*/ |
|
317
|
|
|
public static function setVerified($tftype, $verified = true) |
|
318
|
|
|
{ |
|
319
|
|
|
if (self::isRegistered($tftype)) { |
|
320
|
|
|
self::setSessVar($tftype . '-v', ($verified ? '1' : '')); |
|
321
|
|
|
} |
|
322
|
|
|
} |
|
323
|
|
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|
|
324
|
|
|
/** |
|
325
|
|
|
* isVerified |
|
326
|
|
|
* |
|
327
|
|
|
* This method looks in the 'twofactor' session variable for the |
|
328
|
|
|
* '$tftype-v=...' entry. If this is '1', true is returned. |
|
329
|
|
|
* Otherwise, false is returned. |
|
330
|
|
|
* |
|
331
|
|
|
* @param string $tftype The two-factor type to query, e.g., 'ga'. |
|
332
|
|
|
* @return bool True if the $tftype is found verified in the |
|
333
|
|
|
* 'twofactor' session variable. False otherwise. |
|
334
|
|
|
*/ |
|
335
|
|
|
public static function isVerified($tftype) |
|
336
|
|
|
{ |
|
337
|
|
|
return (self::getSessVar($tftype . '-v') == '1'); |
|
338
|
|
|
} |
|
339
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|
|
|
|
340
|
|
|
/** |
|
341
|
|
|
* printPage |
|
342
|
|
|
* |
|
343
|
|
|
* This method is called when the user clicks the 'Enable' button |
|
344
|
|
|
* for a particular two-factor type, or when the user needs to |
|
345
|
|
|
* log in with an enabled two-factor type. This function does the |
|
346
|
|
|
* work of figuring out if the user has registered and verified |
|
347
|
|
|
* a given two-factor authentication and displays the appropriate |
|
348
|
|
|
* page (for registering or for logging in). |
|
349
|
|
|
* |
|
350
|
|
|
* @param string $tftype (Optional) The two-factor type to print out, |
|
351
|
|
|
* e.g., 'ga'. If empty, then print the currently enabled |
|
352
|
|
|
* two-factor type page. |
|
353
|
|
|
*/ |
|
354
|
|
|
public static function printPage($tftype = '') |
|
355
|
|
|
{ |
|
356
|
|
|
// If $tftype is not specified, use the currently enabled type |
|
357
|
|
|
if (strlen($tftype) == 0) { |
|
358
|
|
|
$tftype = self::getEnabled(); |
|
359
|
|
|
} |
|
360
|
|
|
if ($tftype == 'ga') { // Google Authenticator |
|
361
|
|
|
// Check if user clicked the 'Verify' button. We do this by |
|
362
|
|
|
// looking for the hidden 'verifyga' field, set to '1'. If found, |
|
363
|
|
|
// set 'verified' for 'ga' so that we progress to the Login page. |
|
364
|
|
|
$verifyga = Util::getPostVar('verifyga'); |
|
365
|
|
|
if ($verifyga == '1') { |
|
366
|
|
|
self::setVerified($tftype); |
|
367
|
|
|
self::write(); |
|
368
|
|
|
} |
|
369
|
|
|
|
|
370
|
|
|
// If user registered and verified Google Authenticator, |
|
371
|
|
|
// proceed to the Google Authenticator Login page. |
|
372
|
|
|
if ((self::isRegistered('ga')) && |
|
373
|
|
|
(self::isVerified('ga'))) { |
|
374
|
|
|
self::printGALoginPage(); |
|
375
|
|
|
} else { |
|
376
|
|
|
self::printGARegisterPage(); |
|
377
|
|
|
} |
|
378
|
|
|
} elseif ($tftype == 'duo') { // Duo Security |
|
379
|
|
|
self::printDuoPage(); |
|
380
|
|
|
} |
|
381
|
|
|
} |
|
382
|
|
|
|
|
383
|
|
|
/** |
|
384
|
|
|
* printGARegisterPage |
|
385
|
|
|
* |
|
386
|
|
|
* This method prints out the page for Google Authenticator |
|
387
|
|
|
* Registration. Links for the Google Authenticator app are shown |
|
388
|
|
|
* along with the 'secret' key (and corresponding QR code) to |
|
389
|
|
|
* register the user's account on their phone. |
|
390
|
|
|
*/ |
|
391
|
|
|
private static function printGARegisterPage() |
|
392
|
|
|
{ |
|
393
|
|
|
$secret = ''; |
|
394
|
|
|
// Check if the secret key is already 'registered'. |
|
395
|
|
|
if (self::isRegistered('ga')) { |
|
396
|
|
|
$secret = self::getRegister('ga'); |
|
397
|
|
|
} else { // Generate a new secret key and save it to the database |
|
398
|
|
|
$ga = new PHPGangsta_GoogleAuthenticator(); |
|
399
|
|
|
$secret = $ga->createSecret(); |
|
400
|
|
|
self::setRegister('ga', $secret); |
|
401
|
|
|
self::write(); |
|
402
|
|
|
} |
|
403
|
|
|
|
|
404
|
|
|
$serialstr = Content::getSerialStringFromDN(Util::getSessionVar('dn')); |
|
405
|
|
|
|
|
406
|
|
|
|
|
407
|
|
|
Content::printHeader('Google Authenticator Registration'); |
|
408
|
|
|
echo ' |
|
409
|
|
|
<div class="boxed"> |
|
410
|
|
|
|
|
411
|
|
|
<h2>Google Authenticator Registration</h2> |
|
412
|
|
|
<h3>Step 1</h3> |
|
413
|
|
|
<p> |
|
414
|
|
|
Download the Google Authenticator app specific to your device. |
|
415
|
|
|
</p> |
|
416
|
|
|
<noscript> |
|
417
|
|
|
<div class="nojs"> |
|
418
|
|
|
Javascript is disabled. In order to view the QR Code Links |
|
419
|
|
|
below, please enable Javascript in your browser. |
|
420
|
|
|
</div> |
|
421
|
|
|
</noscript> |
|
422
|
|
|
<ul> |
|
423
|
|
|
<li> <a target="_blank" |
|
424
|
|
|
href="https://play.google.com/store/apps/details?id=com.google.android.apps.authenticator2">Android |
|
425
|
|
|
OS (2.1 and higher)</a> (<a |
|
426
|
|
|
href="javascript:showHideDiv(\'qrandroid\',-1)">QR Code Link</a>) |
|
427
|
|
|
<div id="qrandroid" style="display:none"> |
|
428
|
|
|
<br/> |
|
429
|
|
|
<img alt="QR Code for Android" width="200" height="200" |
|
430
|
|
|
src="' , |
|
431
|
|
|
static::getQRCodeString( |
|
432
|
|
|
'https://play.google.com/store/apps/details?id=com.google.android.apps.authenticator2' |
|
433
|
|
|
) , |
|
434
|
|
|
'" /> |
|
435
|
|
|
</div> |
|
436
|
|
|
</li> |
|
437
|
|
|
<li><a target="_blank" |
|
438
|
|
|
href="https://itunes.apple.com/us/app/google-authenticator/id388497605">Apple |
|
439
|
|
|
iOS (3.1.3 and higher)</a> (<a href="javascript:showHideDiv(\'qrios\',-1)">QR Code Link</a>) |
|
440
|
|
|
<div id="qrios" style="display:none"> |
|
441
|
|
|
<br/> |
|
442
|
|
|
<img alt="QR Code for iOS" width="200" height="200" |
|
443
|
|
|
src="' , |
|
444
|
|
|
static::getQRCodeString('https://itunes.apple.com/us/app/google-authenticator/id388497605') , |
|
445
|
|
|
'"/> |
|
446
|
|
|
</div> |
|
447
|
|
|
</li> |
|
448
|
|
|
<li><a target="_blank" |
|
449
|
|
|
href="https://appworld.blackberry.com/webstore/content/29401059/">BlackBerry OS (4.5-6.0)</a> (<a |
|
450
|
|
|
href="javascript:showHideDiv(\'qrblackberry\',-1)">QR Code Link</a>) |
|
451
|
|
|
<div id="qrblackberry" style="display:none"> |
|
452
|
|
|
<br/> |
|
453
|
|
|
<img alt="QR Code for BlackBerry" width="200" height="200" |
|
454
|
|
|
src="' , |
|
455
|
|
|
static::getQRCodeString('https://appworld.blackberry.com/webstore/content/29401059/') , |
|
456
|
|
|
'"/> |
|
457
|
|
|
</div> |
|
458
|
|
|
</li> |
|
459
|
|
|
</ul> |
|
460
|
|
|
|
|
461
|
|
|
<h3>Step 2</h3> |
|
462
|
|
|
<p> |
|
463
|
|
|
Launch the Google Authenticator app and add your token by scanning the |
|
464
|
|
|
QR code or by entering the account information shown below. |
|
465
|
|
|
</p> |
|
466
|
|
|
<p> |
|
467
|
|
|
<div style="float:left;margin-left:2em"> |
|
468
|
|
|
<img alt="QR Code" width="200" height="200" |
|
469
|
|
|
src="' , |
|
470
|
|
|
static::getQRCodeString( |
|
471
|
|
|
'otpauth://totp/' . $serialstr . '@cilogon.org?secret=' . |
|
472
|
|
|
$secret . '&issuer=CILogon' |
|
473
|
|
|
) , |
|
474
|
|
|
'"/> |
|
475
|
|
|
</div> |
|
476
|
|
|
<div id="securitycode" style="float:left;margin-left:2em"> |
|
477
|
|
|
<table style="margin-left:2em"> |
|
478
|
|
|
<tr> |
|
479
|
|
|
<th style="text-align:left">Account Name:</th> |
|
480
|
|
|
<td><tt>',$serialstr,'@cilogon.org</tt></td> |
|
481
|
|
|
</tr> |
|
482
|
|
|
<tr> |
|
483
|
|
|
<th style="text-align:left">Key:</th> |
|
484
|
|
|
<td><tt>',$secret,'</tt></td> |
|
485
|
|
|
</tr> |
|
486
|
|
|
<tr> |
|
487
|
|
|
<th style="text-align:left">Type of Key:</th> |
|
488
|
|
|
<td><tt>Time based</tt></td> |
|
489
|
|
|
</tr> |
|
490
|
|
|
</table> |
|
491
|
|
|
</div> |
|
492
|
|
|
</p> |
|
493
|
|
|
<br class="clear" /> |
|
494
|
|
|
|
|
495
|
|
|
<h3>Step 3</h3> |
|
496
|
|
|
<p> |
|
497
|
|
|
Click the "Verify" button to log in with a one-time password generated |
|
498
|
|
|
by the Google Authenticator app. |
|
499
|
|
|
</p> |
|
500
|
|
|
<div> |
|
501
|
|
|
'; |
|
502
|
|
|
|
|
503
|
|
|
Content::printFormHead(); |
|
504
|
|
|
echo ' |
|
505
|
|
|
<p> |
|
506
|
|
|
<input type="hidden" name="verifyga" value="1" /> |
|
507
|
|
|
<input type="hidden" name="twofactortype" value="ga" /> |
|
508
|
|
|
<input type="submit" name="submit" class="submit" value="Verify" /> |
|
509
|
|
|
</p> |
|
510
|
|
|
</form> |
|
511
|
|
|
</div> |
|
512
|
|
|
</div> <!-- boxed --> |
|
513
|
|
|
'; |
|
514
|
|
|
Content::printFooter(); |
|
515
|
|
|
} |
|
516
|
|
|
|
|
517
|
|
|
/** |
|
518
|
|
|
* getQRCodeString |
|
519
|
|
|
* |
|
520
|
|
|
* This function takes a string and generates a PNG of a QR code. |
|
521
|
|
|
* This QR code is then base64 encoded and prefixed with 'data' |
|
522
|
|
|
* needed to put the image in HTML as a Data URI image. See |
|
523
|
|
|
* https://en.wikipedia.org/wiki/Data_URI_scheme for more info. |
|
524
|
|
|
* |
|
525
|
|
|
* @param string $text The text to QR encode. |
|
526
|
|
|
* @return string A Base64-encoded PNG of the input text QR encoded. |
|
527
|
|
|
*/ |
|
528
|
|
|
private static function getQRCodeString($text) |
|
529
|
|
|
{ |
|
530
|
|
|
$qr = new QrCode(); |
|
531
|
|
|
$qr->setText($text); |
|
532
|
|
|
$qr->setSize(200); |
|
533
|
|
|
$qr->setMargin(0); |
|
534
|
|
|
return 'data:image/png;base64,' . |
|
535
|
|
|
base64_encode($qr->writeString()); |
|
536
|
|
|
} |
|
537
|
|
|
|
|
538
|
|
|
/** |
|
539
|
|
|
* printGALoginPage |
|
540
|
|
|
* |
|
541
|
|
|
* This method prints out the Google Authenticator Log In page. |
|
542
|
|
|
* The user's Account Name is shown, and the user is prompted to |
|
543
|
|
|
* run the Google Authenticator app on their phone to generate a |
|
544
|
|
|
* one time password. |
|
545
|
|
|
*/ |
|
546
|
|
|
private static function printGALoginPage() |
|
547
|
|
|
{ |
|
548
|
|
|
$serialstr = Content::getSerialStringFromDN(Util::getSessionVar('dn')); |
|
549
|
|
|
|
|
550
|
|
|
Content::printHeader('Google Authenticator Login'); |
|
551
|
|
|
echo ' |
|
552
|
|
|
<div class="boxed"> |
|
553
|
|
|
|
|
554
|
|
|
<h2>Google Authenticator Login</h2> |
|
555
|
|
|
<p> |
|
556
|
|
|
Your account has been configured to use Google Authenticator as a |
|
557
|
|
|
second authentication factor. Enter a one-time passcode as generated |
|
558
|
|
|
by the app below. |
|
559
|
|
|
</p> |
|
560
|
|
|
<div class="actionbox"> |
|
561
|
|
|
'; |
|
562
|
|
|
|
|
563
|
|
|
Content::printFormHead(); |
|
564
|
|
|
echo ' |
|
565
|
|
|
<p> |
|
566
|
|
|
<b>Account:</b> ' , $serialstr , '@cilogon.org |
|
567
|
|
|
</p> |
|
568
|
|
|
<p> |
|
569
|
|
|
<b>Passcode:</b> <input type="text" name="gacode" |
|
570
|
|
|
id="gacode" size="20" /> |
|
571
|
|
|
<!--[if IE]><input type="text" style="display:none;" disabled="disabled" size="1"/><![endif]--> |
|
572
|
|
|
</p> |
|
573
|
|
|
<p> |
|
574
|
|
|
<input type="submit" name="submit" class="submit" value="Enter" /> |
|
575
|
|
|
</p> |
|
576
|
|
|
</form> |
|
577
|
|
|
</div> |
|
578
|
|
|
'; |
|
579
|
|
|
|
|
580
|
|
|
self::printForgotPhone(); |
|
581
|
|
|
|
|
582
|
|
|
echo ' |
|
583
|
|
|
</div> <!-- boxed --> |
|
584
|
|
|
'; |
|
585
|
|
|
Content::printFooter(); |
|
586
|
|
|
} |
|
587
|
|
|
|
|
588
|
|
|
/** |
|
589
|
|
|
* printDuoPage |
|
590
|
|
|
* |
|
591
|
|
|
* This method prints out the Duo Security page. Note that Duo |
|
592
|
|
|
* manages itself via an iframe and JavaScript, so there is only |
|
593
|
|
|
* a single page for Duo Security, which handles both registrations |
|
594
|
|
|
* and authentications. |
|
595
|
|
|
*/ |
|
596
|
|
|
private static function printDuoPage() |
|
597
|
|
|
{ |
|
598
|
|
|
// Check if the 'secret key' is already 'registered'. This is |
|
599
|
|
|
// a bit silly since registration is handled on Duo's servers. |
|
600
|
|
|
if (!self::isRegistered('duo')) { |
|
601
|
|
|
self::setRegister('duo', '1'); |
|
602
|
|
|
self::setVerified('duo'); |
|
603
|
|
|
self::write(); |
|
604
|
|
|
} |
|
605
|
|
|
|
|
606
|
|
|
$serialstr = Content::getSerialStringFromDN(Util::getSessionVar('dn')); |
|
607
|
|
|
$duoconfig = new DuoConfig(); |
|
608
|
|
|
$sig_request = Web::signRequest( |
|
609
|
|
|
$duoconfig->param['ikey'], |
|
610
|
|
|
$duoconfig->param['skey'], |
|
611
|
|
|
$duoconfig->param['akey'], |
|
612
|
|
|
$serialstr . '@cilogon.org' |
|
613
|
|
|
); |
|
614
|
|
|
|
|
615
|
|
|
Content::printHeader('Duo Security'); |
|
616
|
|
|
echo ' |
|
617
|
|
|
<div class="boxed"> |
|
618
|
|
|
|
|
619
|
|
|
<h2>Duo Security</h2> |
|
620
|
|
|
<p> |
|
621
|
|
|
Your account has been configured to use Duo Security as a |
|
622
|
|
|
second authentication factor. Follow the instructions below to use |
|
623
|
|
|
Duo Security for "' , $duoconfig->param['name'] , '". |
|
624
|
|
|
</p> |
|
625
|
|
|
|
|
626
|
|
|
<noscript> |
|
627
|
|
|
<div class="nojs"> |
|
628
|
|
|
Javascript is disabled. In order to use Duo Security, please enable |
|
629
|
|
|
Javascript in your browser. |
|
630
|
|
|
</div> |
|
631
|
|
|
</noscript> |
|
632
|
|
|
|
|
633
|
|
|
<script src="/include/Duo-Web-v2.min.js"></script> |
|
634
|
|
|
<script> |
|
635
|
|
|
Duo.init({ |
|
636
|
|
|
\'host\':\'', $duoconfig->param['host'] ,'\', |
|
637
|
|
|
\'post_action\':\'', Util::getScriptDir() ,'\', |
|
638
|
|
|
\'sig_request\':\'', $sig_request , '\' |
|
639
|
|
|
}); |
|
640
|
|
|
</script> |
|
641
|
|
|
|
|
642
|
|
|
|
|
643
|
|
|
<div> |
|
644
|
|
|
<iframe id="duo_iframe" width="450" height="350" |
|
645
|
|
|
frameborder="0" allowtransparency="true"> |
|
646
|
|
|
</iframe> |
|
647
|
|
|
</div> |
|
648
|
|
|
|
|
649
|
|
|
<form method="post" id="duo_form" style="display:none"> |
|
650
|
|
|
<input type="hidden" name="SUBMIT" value="EnterDuo" /> |
|
651
|
|
|
' , Util::getCsrf()->hiddenFormElement() , ' |
|
652
|
|
|
</form> |
|
653
|
|
|
'; |
|
654
|
|
|
|
|
655
|
|
|
self::printForgotPhone(); |
|
656
|
|
|
|
|
657
|
|
|
echo ' |
|
658
|
|
|
</div> <!-- boxed --> |
|
659
|
|
|
'; |
|
660
|
|
|
Content::printFooter(); |
|
661
|
|
|
} |
|
662
|
|
|
|
|
663
|
|
|
/** |
|
664
|
|
|
* printForgotPhone |
|
665
|
|
|
* |
|
666
|
|
|
* This method prints out the HTML block for the 'Don't have your |
|
667
|
|
|
* phone with you' link. |
|
668
|
|
|
*/ |
|
669
|
|
|
private static function printForgotPhone() |
|
670
|
|
|
{ |
|
671
|
|
|
echo ' |
|
672
|
|
|
<noscript> |
|
673
|
|
|
<div class="nojs"> |
|
674
|
|
|
Javascript is disabled. In order to activate the link |
|
675
|
|
|
below, please enable Javascript in your browser. |
|
676
|
|
|
</div> |
|
677
|
|
|
</noscript> |
|
678
|
|
|
|
|
679
|
|
|
<p> |
|
680
|
|
|
<a href="javascript:showHideDiv(\'missingdevice\',-1)">Don\'t have |
|
681
|
|
|
your phone with you?</a> |
|
682
|
|
|
</p> |
|
683
|
|
|
<div id="missingdevice" style="display:none"> |
|
684
|
|
|
<p> |
|
685
|
|
|
If you temporarily do not have access to your phone, |
|
686
|
|
|
you can click the "Disable Two-Factor" button below |
|
687
|
|
|
to disable two-factor authentication. This will |
|
688
|
|
|
send a message to the email address provided by your Identity |
|
689
|
|
|
Provider. You will then proceed to the CILogon |
|
690
|
|
|
Service without two-factor authentication enabled. |
|
691
|
|
|
</p> |
|
692
|
|
|
'; |
|
693
|
|
|
|
|
694
|
|
|
Content::printFormHead(); |
|
695
|
|
|
echo ' |
|
696
|
|
|
<p> |
|
697
|
|
|
<input type="hidden" name="missingphone" value="1" /> |
|
698
|
|
|
<input type="submit" name="submit" class="submit" |
|
699
|
|
|
value="Disable Two-Factor"/> |
|
700
|
|
|
</p> |
|
701
|
|
|
</form> |
|
702
|
|
|
</div> |
|
703
|
|
|
'; |
|
704
|
|
|
} |
|
705
|
|
|
|
|
706
|
|
|
/** |
|
707
|
|
|
* sendPhoneAlert |
|
708
|
|
|
* |
|
709
|
|
|
* This method is used to send email to the user when he clicks |
|
710
|
|
|
* either 'Disable Two-Factor' (under 'Don't have your phone with |
|
711
|
|
|
* you?') or 'I Lost My Phone' (under 'Lost your phone?'). |
|
712
|
|
|
* |
|
713
|
|
|
* @param string $summary Subject line summary text. |
|
714
|
|
|
* @param string $detail Detail text in the body of the email. |
|
715
|
|
|
* @param string $mailto The destination email address. |
|
716
|
|
|
*/ |
|
717
|
|
|
public static function sendPhoneAlert($summary, $detail, $mailto) |
|
718
|
|
|
{ |
|
719
|
|
|
$mailfrom = 'From: [email protected]' . "\r\n" . |
|
720
|
|
|
'X-Mailer: PHP/' . phpversion(); |
|
721
|
|
|
$mailsubj = 'CILogon Service - ' . $summary; |
|
722
|
|
|
$mailmsg = ' |
|
723
|
|
|
CILogon Service - ' . $summary . ' |
|
724
|
|
|
----------------------------------------------------------- |
|
725
|
|
|
' . $detail . ' |
|
726
|
|
|
'; |
|
727
|
|
|
|
|
728
|
|
|
mail($mailto, $mailsubj, $mailmsg, $mailfrom); |
|
729
|
|
|
} |
|
730
|
|
|
|
|
731
|
|
|
/** |
|
732
|
|
|
* writeEnabledAndVerified |
|
733
|
|
|
* |
|
734
|
|
|
* This method is called after a two-factor passcode has been |
|
735
|
|
|
* successfully validated. It updates the database (if necessary) |
|
736
|
|
|
* by setting verified and enabled to true for the given two- |
|
737
|
|
|
* factor method. |
|
738
|
|
|
* |
|
739
|
|
|
* @param string $tftype The two-factor authentication type (e.g., 'ga'). |
|
740
|
|
|
*/ |
|
741
|
|
|
private static function writeEnabledAndVerified($tftype) |
|
742
|
|
|
{ |
|
743
|
|
|
$needtowrite = false; // Write to database only if necessary |
|
744
|
|
|
if (!self::isVerified($tftype)) { |
|
745
|
|
|
self::setVerified($tftype); |
|
746
|
|
|
$needtowrite = true; |
|
747
|
|
|
} |
|
748
|
|
|
if (!self::isEnabled($tftype)) { |
|
749
|
|
|
self::setEnabled($tftype); |
|
750
|
|
|
$needtowrite = true; |
|
751
|
|
|
} |
|
752
|
|
|
if ($needtowrite) { |
|
753
|
|
|
self::write(); |
|
754
|
|
|
} |
|
755
|
|
|
} |
|
756
|
|
|
|
|
757
|
|
|
/** |
|
758
|
|
|
* isGACodeValid |
|
759
|
|
|
* |
|
760
|
|
|
* This method takes in a passcode generated by the Google |
|
761
|
|
|
* Authenticator app and attempts to verify it. If the passcode is |
|
762
|
|
|
* valid, the database is updated for GA verified and enabled, and |
|
763
|
|
|
* true is returned. |
|
764
|
|
|
* |
|
765
|
|
|
* @param string $code The six-digit code generated by Google Authenticator |
|
766
|
|
|
* @return bool True if the input code is valid, false otherwise. |
|
767
|
|
|
*/ |
|
768
|
|
|
public static function isGACodeValid($code) |
|
769
|
|
|
{ |
|
770
|
|
|
$valid = false; |
|
771
|
|
|
$secret = self::getRegister('ga'); |
|
772
|
|
|
if ((strlen($code) > 0) && (strlen($secret) > 0)) { |
|
773
|
|
|
$ga = new PHPGangsta_GoogleAuthenticator(); |
|
774
|
|
|
$valid = $ga->verifyCode($secret, $code, 1); |
|
775
|
|
|
} |
|
776
|
|
|
|
|
777
|
|
|
if ($valid) { |
|
778
|
|
|
self::writeEnabledAndVerified('ga'); |
|
779
|
|
|
} |
|
780
|
|
|
|
|
781
|
|
|
return $valid; |
|
782
|
|
|
} |
|
783
|
|
|
|
|
784
|
|
|
/** |
|
785
|
|
|
* isDuoCodeValid |
|
786
|
|
|
* |
|
787
|
|
|
* This method takes in a 'sig_response' as generated by the |
|
788
|
|
|
* Duo Security login code and attempts to verify it. If the |
|
789
|
|
|
* response is valid, the database is updated for Duo verified and |
|
790
|
|
|
* enabled, and true is returned. |
|
791
|
|
|
* |
|
792
|
|
|
* @param string $code A response code generated by Duo Security login |
|
793
|
|
|
* @return bool True if the duo code is valid, false otherwise. |
|
794
|
|
|
*/ |
|
795
|
|
|
public static function isDuoCodeValid($code) |
|
796
|
|
|
{ |
|
797
|
|
|
$valid = false; |
|
798
|
|
|
if (strlen($code) > 0) { |
|
799
|
|
|
$duoconfig = new DuoConfig(); |
|
800
|
|
|
$resp = Web::verifyResponse( |
|
801
|
|
|
$duoconfig->param['ikey'], |
|
802
|
|
|
$duoconfig->param['skey'], |
|
803
|
|
|
$duoconfig->param['akey'], |
|
804
|
|
|
$code |
|
805
|
|
|
); |
|
806
|
|
|
if ($resp !== null) { |
|
807
|
|
|
$valid = true; |
|
808
|
|
|
} |
|
809
|
|
|
} |
|
810
|
|
|
|
|
811
|
|
|
if ($valid) { |
|
812
|
|
|
self::writeEnabledAndVerified('duo'); |
|
813
|
|
|
} |
|
814
|
|
|
|
|
815
|
|
|
return $valid; |
|
816
|
|
|
} |
|
817
|
|
|
|
|
818
|
|
|
/** |
|
819
|
|
|
* isDuoCodeValidREST |
|
820
|
|
|
* |
|
821
|
|
|
* This method is called by ecpCheck to verify Duo Security |
|
822
|
|
|
* authentication for the current user. The code is either a six- |
|
823
|
|
|
* digit passcode as generated by the Duo Security app, a seven- |
|
824
|
|
|
* character code (1 letter + 6 digits) as sent by SMS, or a |
|
825
|
|
|
* number indicating which authentication method the user wants to |
|
826
|
|
|
* use (e.g., '1' often indicates 'push' authentication). This |
|
827
|
|
|
* method calls 'duoconfig->push()' to validate the code. |
|
828
|
|
|
* |
|
829
|
|
|
* @param string $code A 6-digit passcode, a 7-character code, or |
|
830
|
|
|
* 'factor' index to be used when calling 'duoconfig->auth()' |
|
831
|
|
|
* @return bool True if the user is authenticated by Duo Security. |
|
832
|
|
|
* False otherwise. |
|
833
|
|
|
*/ |
|
834
|
|
|
public static function isDuoCodeValidREST($code) |
|
835
|
|
|
{ |
|
836
|
|
|
$valid = false; |
|
837
|
|
|
if (strlen($code) > 0) { |
|
838
|
|
|
$serialstr = Content::getSerialStringFromDN(Util::getSessionVar('dn')); |
|
839
|
|
|
$duoconfig = new DuoConfig(); |
|
840
|
|
|
$valid = $duoconfig->auth($serialstr . '@cilogon.org', $code); |
|
841
|
|
|
} |
|
842
|
|
|
return $valid; |
|
843
|
|
|
} |
|
844
|
|
|
|
|
845
|
|
|
/** |
|
846
|
|
|
* ecpCheck |
|
847
|
|
|
* |
|
848
|
|
|
* This method is called when a user attempts to get a PKCS12 |
|
849
|
|
|
* credential or a certificate via ECP. It first checks if two- |
|
850
|
|
|
* factor authentication is enabled. If not, then true is returned. |
|
851
|
|
|
* If two-factor is enabled, it checks for a form variable |
|
852
|
|
|
* 'tfpasscode'. If the passcode is '0', two-factor is disabled, |
|
853
|
|
|
* and true is returned. Otherwise, the method attempts to validate |
|
854
|
|
|
* the passcode. If successful, true is returned. Otherwise, this |
|
855
|
|
|
* method outputs a '401' header with the 'realm' set to a user |
|
856
|
|
|
* prompt, and false is returned. |
|
857
|
|
|
* |
|
858
|
|
|
* @return bool True if either (a) two-factor is disabled or |
|
859
|
|
|
* (b) two-factor is enabled and a valid passcode |
|
860
|
|
|
* was entered. False otherwise. |
|
861
|
|
|
*/ |
|
862
|
|
|
public static function ecpCheck() |
|
863
|
|
|
{ |
|
864
|
|
|
$retval = false; // Assume ecp twofactor check failed |
|
865
|
|
|
$tftype = self::getEnabled(); |
|
866
|
|
|
|
|
867
|
|
|
if ($tftype == 'none') { // Two-factor disabled => okay to do ecp |
|
868
|
|
|
$retval = true; |
|
869
|
|
|
} else { |
|
870
|
|
|
$valid = false; |
|
871
|
|
|
// Look for form-submitted passcode |
|
872
|
|
|
$code = Util::getPostVar('tfpasscode'); |
|
873
|
|
|
if (strlen($code) > 0) { // Passcode was entered |
|
874
|
|
|
if ($code == '0') { // '0' => Disable two-factor |
|
875
|
|
|
self::setDisabled(); |
|
876
|
|
|
self::write(); |
|
877
|
|
|
$valid = true; |
|
878
|
|
|
} else { // Check if entered passcode is valid |
|
879
|
|
|
if ((($tftype == 'ga') && |
|
880
|
|
|
(self::isGACodeValid($code))) || |
|
881
|
|
|
(($tftype == 'duo') && |
|
882
|
|
|
(self::isDuoCodeValidREST($code)))) { |
|
883
|
|
|
$valid = true; |
|
884
|
|
|
} |
|
885
|
|
|
} |
|
886
|
|
|
} |
|
887
|
|
|
|
|
888
|
|
|
if ($valid) { // Entered code was validated correctly |
|
889
|
|
|
$retval = true; |
|
890
|
|
|
} else { // Either no code, or code was not valid |
|
891
|
|
|
// Send '401 Unauthorized' header with user prompt in 'realm' |
|
892
|
|
|
$realm = ''; |
|
893
|
|
|
$serialstr = Content::getSerialStringFromDN(Util::getSessionVar('dn')); |
|
894
|
|
|
|
|
895
|
|
|
if ($tftype == 'ga') { // Google Authenticator |
|
896
|
|
|
$realm = "Two-factor authentication with Google " . |
|
897
|
|
|
"Authenticator is required.\nPlease enter a " . |
|
898
|
|
|
"passcode for '[email protected]', or\n'0' " . |
|
899
|
|
|
"to disable two-factor authentication for your " . |
|
900
|
|
|
"account: "; |
|
901
|
|
|
} elseif ($tftype == 'duo') { // Duo Security |
|
902
|
|
|
$duoconfig = new DuoConfig(); |
|
903
|
|
|
$preauth = $duoconfig->preauth($serialstr . '@cilogon.org'); |
|
904
|
|
|
if ($preauth === false) { // Problem with Duo |
|
|
|
|
|
|
905
|
|
|
$realm = "Two-factor authentication with Duo " . |
|
906
|
|
|
"Security is required.\nHowever, Duo servers are " . |
|
907
|
|
|
"not responding. Please try again later " . |
|
908
|
|
|
"or\nenter '0' to disable two-factor " . |
|
909
|
|
|
"authentication for your account: "; |
|
910
|
|
|
} else { // Check response type from Duo |
|
911
|
|
|
if ($preauth['response']['result'] == 'allow') { |
|
912
|
|
|
$retval = true; // No need for 401 header |
|
913
|
|
|
} elseif ($preauth['response']['result'] == 'auth') { |
|
914
|
|
|
$realm = $preauth['response']['prompt']; |
|
915
|
|
|
// Add an option for '0. Disable two-factor' |
|
916
|
|
|
$realm = preg_replace( |
|
917
|
|
|
'/(1\. )/', |
|
918
|
|
|
"0. Disable two-factor authentication\n $1", |
|
919
|
|
|
$realm |
|
920
|
|
|
); |
|
921
|
|
|
$realm = preg_replace('/\(1-/', '(0-', $realm); |
|
922
|
|
|
} else { // Either 'deny' or 'enroll' returned |
|
923
|
|
|
$realm = "Two-factor authentication with Duo " . |
|
924
|
|
|
"Security is required.\nHowever, Duo " . |
|
925
|
|
|
"indicated that access to your account is " . |
|
926
|
|
|
"denied.\nPlease contact [email protected] " . |
|
927
|
|
|
"for further assistance or\nenter '0' to " . |
|
928
|
|
|
"disable two-factor authentication for your " . |
|
929
|
|
|
"account: "; |
|
930
|
|
|
} |
|
931
|
|
|
} |
|
932
|
|
|
} |
|
933
|
|
|
|
|
934
|
|
|
if (strlen($realm) > 0) { |
|
935
|
|
|
// Need to urlencode $realm due to \n and spaces |
|
936
|
|
|
header('WWW-Authenticate: Basic realm="' . |
|
937
|
|
|
urlencode($realm) . '"'); |
|
938
|
|
|
header('HTTP/1.0 401 Unauthorized'); |
|
939
|
|
|
} |
|
940
|
|
|
} |
|
941
|
|
|
} |
|
942
|
|
|
|
|
943
|
|
|
return $retval; |
|
944
|
|
|
} |
|
945
|
|
|
} |
|
946
|
|
|
|
This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.
If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. Please note the @ignore annotation hint above.