Kanboard requires at least PHP 5.6 now

2 files changed, 3 insertions, 238 deletions

diff --git a/app/Library/password.php b/app/Library/password.php
deleted file mode 100644
index d4972ab4..00000000
--- a/app/Library/password.php
+++ /dev/null
@@ -1,226 +0,0 @@
-<?php
-/**
- * A Compatibility library with PHP 5.5's simplified password hashing API.
- *
- * @author Anthony Ferrara <ircmaxell@php.net>
- * @license http://www.opensource.org/licenses/mit-license.html MIT License
- * @copyright 2012 The Authors
- */
-
-if (!defined('PASSWORD_BCRYPT')) {
-    define('PASSWORD_BCRYPT', 1);
-    define('PASSWORD_DEFAULT', PASSWORD_BCRYPT);
-
-    if (version_compare(PHP_VERSION, '5.3.7', '<')) {
-        define('PASSWORD_PREFIX', '$2a$');
-    } else {
-        define('PASSWORD_PREFIX', '$2y$');
-    }
-
-    /**
-     * Hash the password using the specified algorithm
-     *
-     * @param string $password The password to hash
-     * @param int    $algo     The algorithm to use (Defined by PASSWORD_* constants)
-     * @param array  $options  The options for the algorithm to use
-     *
-     * @return string|false The hashed password, or false on error.
-     */
-    function password_hash($password, $algo, array $options = array())
-    {
-        if (!function_exists('crypt')) {
-            trigger_error("Crypt must be loaded for password_hash to function", E_USER_WARNING);
-            return null;
-        }
-        if (!is_string($password)) {
-            trigger_error("password_hash(): Password must be a string", E_USER_WARNING);
-            return null;
-        }
-        if (!is_int($algo)) {
-            trigger_error("password_hash() expects parameter 2 to be long, " . gettype($algo) . " given", E_USER_WARNING);
-            return null;
-        }
-        switch ($algo) {
-            case PASSWORD_BCRYPT:
-                // Note that this is a C constant, but not exposed to PHP, so we don't define it here.
-                $cost = 10;
-                if (isset($options['cost'])) {
-                    $cost = $options['cost'];
-                    if ($cost < 4 || $cost > 31) {
-                        trigger_error(sprintf("password_hash(): Invalid bcrypt cost parameter specified: %d", $cost), E_USER_WARNING);
-                        return null;
-                    }
-                }
-                $required_salt_len = 22;
-                $hash_format = sprintf("%s%02d$", PASSWORD_PREFIX, $cost);
-                break;
-            default:
-                trigger_error(sprintf("password_hash(): Unknown password hashing algorithm: %s", $algo), E_USER_WARNING);
-                return null;
-        }
-        if (isset($options['salt'])) {
-            switch (gettype($options['salt'])) {
-                case 'NULL':
-                case 'boolean':
-                case 'integer':
-                case 'double':
-                case 'string':
-                    $salt = (string) $options['salt'];
-                    break;
-                case 'object':
-                    if (method_exists($options['salt'], '__tostring')) {
-                        $salt = (string) $options['salt'];
-                        break;
-                    }
-                case 'array':
-                case 'resource':
-                default:
-                    trigger_error('password_hash(): Non-string salt parameter supplied', E_USER_WARNING);
-                    return null;
-            }
-            if (strlen($salt) < $required_salt_len) {
-                trigger_error(sprintf("password_hash(): Provided salt is too short: %d expecting %d", strlen($salt), $required_salt_len), E_USER_WARNING);
-                return null;
-            } elseif (0 == preg_match('#^[a-zA-Z0-9./]+$#D', $salt)) {
-                $salt = str_replace('+', '.', base64_encode($salt));
-            }
-        } else {
-            $buffer = '';
-            $raw_length = (int) ($required_salt_len * 3 / 4 + 1);
-            $buffer_valid = false;
-            if (function_exists('mcrypt_create_iv') && !defined('PHALANGER')) {
-                $buffer = mcrypt_create_iv($raw_length, MCRYPT_DEV_URANDOM);
-                if ($buffer) {
-                    $buffer_valid = true;
-                }
-            }
-            if (!$buffer_valid && function_exists('openssl_random_pseudo_bytes')) {
-                $buffer = openssl_random_pseudo_bytes($raw_length);
-                if ($buffer) {
-                    $buffer_valid = true;
-                }
-            }
-            if (!$buffer_valid && is_readable('/dev/urandom')) {
-                $f = fopen('/dev/urandom', 'r');
-                $read = strlen($buffer);
-                while ($read < $raw_length) {
-                    $buffer .= fread($f, $raw_length - $read);
-                    $read = strlen($buffer);
-                }
-                fclose($f);
-                if ($read >= $raw_length) {
-                    $buffer_valid = true;
-                }
-            }
-            if (!$buffer_valid || strlen($buffer) < $raw_length) {
-                $bl = strlen($buffer);
-                for ($i = 0; $i < $raw_length; $i++) {
-                    if ($i < $bl) {
-                        $buffer[$i] = $buffer[$i] ^ chr(mt_rand(0, 255));
-                    } else {
-                        $buffer .= chr(mt_rand(0, 255));
-                    }
-                }
-            }
-            $salt = str_replace('+', '.', base64_encode($buffer));
-        }
-        $salt = substr($salt, 0, $required_salt_len);
-
-        $hash = $hash_format . $salt;
-
-        $ret = crypt($password, $hash);
-
-        if (!is_string($ret) || strlen($ret) <= 13) {
-            return false;
-        }
-
-        return $ret;
-    }
-
-    /**
-     * Get information about the password hash. Returns an array of the information
-     * that was used to generate the password hash.
-     *
-     * array(
-     *    'algo' => 1,
-     *    'algoName' => 'bcrypt',
-     *    'options' => array(
-     *        'cost' => 10,
-     *    ),
-     * )
-     *
-     * @param string $hash The password hash to extract info from
-     *
-     * @return array The array of information about the hash.
-     */
-    function password_get_info($hash)
-    {
-        $return = array(
-            'algo' => 0,
-            'algoName' => 'unknown',
-            'options' => array(),
-        );
-        if (substr($hash, 0, 4) == PASSWORD_PREFIX && strlen($hash) == 60) {
-            $return['algo'] = PASSWORD_BCRYPT;
-            $return['algoName'] = 'bcrypt';
-            list($cost) = sscanf($hash, PASSWORD_PREFIX."%d$");
-            $return['options']['cost'] = $cost;
-        }
-        return $return;
-    }
-
-    /**
-     * Determine if the password hash needs to be rehashed according to the options provided
-     *
-     * If the answer is true, after validating the password using password_verify, rehash it.
-     *
-     * @param string $hash    The hash to test
-     * @param int    $algo    The algorithm used for new password hashes
-     * @param array  $options The options array passed to password_hash
-     *
-     * @return boolean True if the password needs to be rehashed.
-     */
-    function password_needs_rehash($hash, $algo, array $options = array())
-    {
-        $info = password_get_info($hash);
-        if ($info['algo'] != $algo) {
-            return true;
-        }
-        switch ($algo) {
-            case PASSWORD_BCRYPT:
-                $cost = isset($options['cost']) ? $options['cost'] : 10;
-                if ($cost != $info['options']['cost']) {
-                    return true;
-                }
-                break;
-        }
-        return false;
-    }
-
-    /**
-     * Verify a password against a hash using a timing attack resistant approach
-     *
-     * @param string $password The password to verify
-     * @param string $hash     The hash to verify against
-     *
-     * @return boolean If the password matches the hash
-     */
-    function password_verify($password, $hash)
-    {
-        if (!function_exists('crypt')) {
-            trigger_error("Crypt must be loaded for password_verify to function", E_USER_WARNING);
-            return false;
-        }
-        $ret = crypt($password, $hash);
-        if (!is_string($ret) || strlen($ret) != strlen($hash) || strlen($ret) <= 13) {
-            return false;
-        }
-
-        $status = 0;
-        for ($i = 0; $i < strlen($ret); $i++) {
-            $status |= (ord($ret[$i]) ^ ord($hash[$i]));
-        }
-
-        return $status === 0;
-    }
-}
diff --git a/app/check_setup.php b/app/check_setup.php
index 16d65bc8..dd3aeb04 100644
--- a/app/check_setup.php
+++ b/app/check_setup.php
@@ -1,17 +1,8 @@
 <?php
 
-// PHP 5.3.3 minimum
-if (version_compare(PHP_VERSION, '5.3.3', '<')) {
-    throw new Exception('This software require PHP 5.3.3 minimum');
-}
-
-// Checks for PHP < 5.4
-if (version_compare(PHP_VERSION, '5.4.0', '<')) {
-
-    // Short tags must be enabled for PHP < 5.4
-    if (! ini_get('short_open_tag')) {
-        throw new Exception('This software require to have short tags enabled if you have PHP < 5.4 ("short_open_tag = On")');
-    }
+// PHP 5.6.0 minimum
+if (version_compare(PHP_VERSION, '5.6.0', '<')) {
+    throw new Exception('This software requires PHP 5.6.0 minimum');
 }
 
 // Check data folder if sqlite