| @@ -1,167 +1,158 @@ | ||
| 1 | -<?php | |
| 2 | - | |
| 3 | -// Do not allow the file to be called directly. | |
| 4 | -if ( ! defined( 'ABSPATH' ) ) { | |
| 5 | - exit; | |
| 6 | -} | |
| 7 | - | |
| 8 | -/** | |
| 9 | - * This class is used to determine if the IP address of the | |
| 10 | - * user is banned. Along with that we check the IP address whitelist. | |
| 11 | - */ | |
| 12 | -class P_Ban extends P_Core { | |
| 13 | - | |
| 14 | - /** | |
| 15 | - * Add the actions required for determining the ban. | |
| 16 | - * | |
| 17 | - * @param Patchstack $core | |
| 18 | - * @return void | |
| 19 | - */ | |
| 20 | - public function __construct( $core ) { | |
| 21 | - parent::__construct( $core ); | |
| 22 | - | |
| 23 | - if ( $this->get_option( 'patchstack_license_free', 0 ) == 1 ) { | |
| 24 | - return; | |
| 25 | - } | |
| 26 | - | |
| 27 | - add_action( 'init', [ $this, 'ip_ban' ], ~PHP_INT_MAX + 1 ); | |
| 28 | - } | |
| 29 | - | |
| 30 | - /** | |
| 31 | - * Determine if the IP address of the user is blocked. | |
| 32 | - * | |
| 33 | - * @return void | |
| 34 | - */ | |
| 35 | - public function ip_ban() { | |
| 36 | - if ( ! is_user_logged_in() && $this->is_ip_blocked( $this->get_ip() ) ) { | |
| 37 | - $this->plugin->firewall_base->display_error_page( 22 ); | |
| 38 | - } | |
| 39 | - } | |
| 40 | - | |
| 41 | - /** | |
| 42 | - * Check IP ban. | |
| 43 | - * | |
| 44 | - * @param string $ip The IP address of the user. | |
| 45 | - * @return boolean Whether or not the user is blocked. | |
| 46 | - */ | |
| 47 | - public function is_ip_blocked( $ip ) { | |
| 48 | - $ip_rules = $this->get_option( 'patchstack_ip_block_list', '' ); | |
| 49 | - if ( empty( $ip_rules ) ) { | |
| 50 | - return false; | |
| 51 | - } | |
| 52 | - | |
| 53 | - $blocked = false; | |
| 54 | - $ip_rules = explode( "\n", $ip_rules ); | |
| 55 | - foreach ( $ip_rules as $blocked_ip ) { | |
| 56 | - $blocked_ip = trim( $blocked_ip ); | |
| 57 | - if ( strpos( $blocked_ip, '*' ) !== false ) { | |
| 58 | - $blocked = $this->check_wildcard_rule( $ip, $blocked_ip ); | |
| 59 | - } elseif ( strpos( $blocked_ip, '-' ) !== false ) { | |
| 60 | - $blocked = $this->check_range_rule( $ip, $blocked_ip ); | |
| 61 | - } elseif ( strpos( $blocked_ip, '/' ) !== false ) { | |
| 62 | - $blocked = $this->check_subnet_mask_rule( $ip, $blocked_ip ); | |
| 63 | - } elseif ( $ip == $blocked_ip ) { | |
| 64 | - return true; | |
| 65 | - } | |
| 66 | - | |
| 67 | - if ( $blocked ) { | |
| 68 | - return true; | |
| 69 | - } | |
| 70 | - } | |
| 71 | - | |
| 72 | - return $blocked; | |
| 73 | - } | |
| 74 | - | |
| 75 | - /** | |
| 76 | - * Check IP whitelist for login protection. | |
| 77 | - * | |
| 78 | - * @param string $ip The IP address of the user. | |
| 79 | - * @return boolean Whether or not the user is whitelisted. | |
| 80 | - */ | |
| 81 | - public function is_ip_whitelisted( $ip ) { | |
| 82 | - $ipRules = explode( "\n", $this->get_option( 'patchstack_login_whitelist', '' ) ); | |
| 83 | - if ( empty( $ipRules ) ) { | |
| 84 | - return true; | |
| 85 | - } | |
| 86 | - | |
| 87 | - $whitelisted = false; | |
| 88 | - foreach ( $ipRules as $ipRule ) { | |
| 89 | - $ipRule = trim( $ipRule ); | |
| 90 | - if ( strpos( $ipRule, '*' ) !== false ) { | |
| 91 | - $whitelisted = $this->check_wildcard_rule( $ip, $ipRule ); | |
| 92 | - } elseif ( strpos( $ipRule, '-' ) !== false ) { | |
| 93 | - $whitelisted = $this->check_range_rule( $ip, $ipRule ); | |
| 94 | - } elseif ( strpos( $ipRule, '/' ) !== false ) { | |
| 95 | - $whitelisted = $this->check_subnet_mask_rule( $ip, $ipRule ); | |
| 96 | - } elseif ( $ip == $ipRule ) { | |
| 97 | - return true; | |
| 98 | - } | |
| 99 | - | |
| 100 | - if ( $whitelisted ) { | |
| 101 | - return true; | |
| 102 | - } | |
| 103 | - } | |
| 104 | - | |
| 105 | - return $whitelisted; | |
| 106 | - } | |
| 107 | - | |
| 108 | - /** | |
| 109 | - * CIDR notation IP block check. | |
| 110 | - * | |
| 111 | - * @param string $ip The IP address of the user. | |
| 112 | - * @param string $range The range to check. | |
| 113 | - * @return boolean Whether or not the IP is in the range. | |
| 114 | - */ | |
| 115 | - public function check_subnet_mask_rule( $ip, $range ) { | |
| 116 | - list($range, $netmask) = explode( '/', $range, 2 ); | |
| 117 | - | |
| 118 | - // A malformed netmask (e.g. "1.2.3.4/abc") would throw a TypeError on the | |
| 119 | - // arithmetic below on PHP 8; treat anything outside 0-32 as a non-match. | |
| 120 | - if ( ! is_numeric( $netmask ) || $netmask < 0 || $netmask > 32 ) { | |
| 121 | - return false; | |
| 122 | - } | |
| 123 | - $netmask = (int) $netmask; | |
| 124 | - | |
| 125 | - $range_decimal = ip2long( $range ); | |
| 126 | - $ip_decimal = ip2long( $ip ); | |
| 127 | - $wildcard_decimal = pow( 2, ( 32 - $netmask ) ) - 1; | |
| 128 | - $netmask_decimal = ~ $wildcard_decimal; | |
| 129 | - return ( ( $ip_decimal & $netmask_decimal ) == ( $range_decimal & $netmask_decimal ) ); | |
| 130 | - } | |
| 131 | - | |
| 132 | - /** | |
| 133 | - * Wildcard IP block check. | |
| 134 | - * | |
| 135 | - * @param string $ip The IP address of the user. | |
| 136 | - * @param string $rule The wildcard range to check against. | |
| 137 | - * @return boolean Whether or not the IP is in the wilcard range. | |
| 138 | - */ | |
| 139 | - public function check_wildcard_rule( $ip, $rule ) { | |
| 140 | - $match = explode( '*', $rule ); | |
| 141 | - $match = $match[0]; | |
| 142 | - return ( substr( $ip, 0, strlen( $match ) ) == $match ); | |
| 143 | - } | |
| 144 | - | |
| 145 | - /** | |
| 146 | - * IP range block check. | |
| 147 | - * | |
| 148 | - * @param string|array $ip The IP address of the user. | |
| 149 | - * @param string $rule The range to check against. | |
| 150 | - * @return boolean Whether or not the IP is in the range. | |
| 151 | - */ | |
| 152 | - public function check_range_rule( $ip, $rule ) { | |
| 153 | - // Check if client has multiple IPs | |
| 154 | - if ( is_array( $ip ) ) { | |
| 155 | - $ip = $ip[0]; | |
| 156 | - } | |
| 157 | - | |
| 158 | - $first_ip = explode( '-', $rule ); | |
| 159 | - $second_ip = explode( '-', $rule ); | |
| 160 | - | |
| 161 | - $start_ip = ip2long( $first_ip[0] ); | |
| 162 | - $end_ip = ip2long( $second_ip[1] ); | |
| 163 | - $request_ip = ip2long( $ip ); | |
| 164 | - | |
| 165 | - return ( $request_ip >= $start_ip && $request_ip <= $end_ip ); | |
| 166 | - } | |
| 167 | -} | |
| 1 | +<?php | |
| 2 | + | |
| 3 | +// Do not allow the file to be called directly. | |
| 4 | +if ( ! defined( 'ABSPATH' ) ) { | |
| 5 | + exit; | |
| 6 | +} | |
| 7 | + | |
| 8 | +/** | |
| 9 | + * This class is used to determine if the IP address of the | |
| 10 | + * user is banned. Along with that we check the IP address whitelist. | |
| 11 | + */ | |
| 12 | +class P_Ban extends P_Core { | |
| 13 | + | |
| 14 | + /** | |
| 15 | + * Add the actions required for determining the ban. | |
| 16 | + * | |
| 17 | + * @param Patchstack $core | |
| 18 | + * @return void | |
| 19 | + */ | |
| 20 | + public function __construct( $core ) { | |
| 21 | + parent::__construct( $core ); | |
| 22 | + | |
| 23 | + if ( $this->get_option( 'patchstack_license_free', 0 ) == 1 ) { | |
| 24 | + return; | |
| 25 | + } | |
| 26 | + | |
| 27 | + add_action( 'init', [ $this, 'ip_ban' ], ~PHP_INT_MAX + 1 ); | |
| 28 | + } | |
| 29 | + | |
| 30 | + /** | |
| 31 | + * Determine if the IP address of the user is blocked. | |
| 32 | + * | |
| 33 | + * @return void | |
| 34 | + */ | |
| 35 | + public function ip_ban() { | |
| 36 | + if ( ! is_user_logged_in() && $this->is_ip_blocked( $this->get_ip() ) ) { | |
| 37 | + $this->plugin->firewall_base->display_error_page( 22 ); | |
| 38 | + } | |
| 39 | + } | |
| 40 | + | |
| 41 | + /** | |
| 42 | + * Check IP ban. | |
| 43 | + * | |
| 44 | + * @param string $ip The IP address of the user. | |
| 45 | + * @return boolean Whether or not the user is blocked. | |
| 46 | + */ | |
| 47 | + public function is_ip_blocked( $ip ) { | |
| 48 | + $ip_rules = $this->get_option( 'patchstack_ip_block_list', '' ); | |
| 49 | + if ( empty( $ip_rules ) ) { | |
| 50 | + return false; | |
| 51 | + } | |
| 52 | + | |
| 53 | + $blocked = false; | |
| 54 | + $ip_rules = explode( "\n", $ip_rules ); | |
| 55 | + foreach ( $ip_rules as $blocked_ip ) { | |
| 56 | + $blocked_ip = trim( $blocked_ip ); | |
| 57 | + if ( strpos( $blocked_ip, '*' ) !== false ) { | |
| 58 | + $blocked = $this->check_wildcard_rule( $ip, $blocked_ip ); | |
| 59 | + } elseif ( strpos( $blocked_ip, '-' ) !== false ) { | |
| 60 | + $blocked = $this->check_range_rule( $ip, $blocked_ip ); | |
| 61 | + } elseif ( strpos( $blocked_ip, '/' ) !== false ) { | |
| 62 | + $blocked = $this->check_subnet_mask_rule( $ip, $blocked_ip ); | |
| 63 | + } elseif ( $ip == $blocked_ip ) { | |
| 64 | + return true; | |
| 65 | + } | |
| 66 | + | |
| 67 | + if ( $blocked ) { | |
| 68 | + return true; | |
| 69 | + } | |
| 70 | + } | |
| 71 | + | |
| 72 | + return $blocked; | |
| 73 | + } | |
| 74 | + | |
| 75 | + /** | |
| 76 | + * Check IP whitelist for login protection. | |
| 77 | + * | |
| 78 | + * @param string $ip The IP address of the user. | |
| 79 | + * @return boolean Whether or not the user is whitelisted. | |
| 80 | + */ | |
| 81 | + public function is_ip_whitelisted( $ip ) { | |
| 82 | + $ipRules = explode( "\n", $this->get_option( 'patchstack_login_whitelist', '' ) ); | |
| 83 | + if ( empty( $ipRules ) ) { | |
| 84 | + return true; | |
| 85 | + } | |
| 86 | + | |
| 87 | + $whitelisted = false; | |
| 88 | + foreach ( $ipRules as $ipRule ) { | |
| 89 | + if ( strpos( $ipRule, '*' ) !== false ) { | |
| 90 | + $whitelisted = $this->check_wildcard_rule( $ip, $ipRule ); | |
| 91 | + } elseif ( strpos( $ipRule, '-' ) !== false ) { | |
| 92 | + $whitelisted = $this->check_range_rule( $ip, $ipRule ); | |
| 93 | + } elseif ( strpos( $ipRule, '/' ) !== false ) { | |
| 94 | + $whitelisted = $this->check_subnet_mask_rule( $ip, $ipRule ); | |
| 95 | + } elseif ( $ip == $ipRule ) { | |
| 96 | + return true; | |
| 97 | + } | |
| 98 | + | |
| 99 | + if ( $whitelisted ) { | |
| 100 | + return true; | |
| 101 | + } | |
| 102 | + } | |
| 103 | + | |
| 104 | + return $whitelisted; | |
| 105 | + } | |
| 106 | + | |
| 107 | + /** | |
| 108 | + * CIDR notation IP block check. | |
| 109 | + * | |
| 110 | + * @param string $ip The IP address of the user. | |
| 111 | + * @param string $range The range to check. | |
| 112 | + * @return boolean Whether or not the IP is in the range. | |
| 113 | + */ | |
| 114 | + public function check_subnet_mask_rule( $ip, $range ) { | |
| 115 | + list($range, $netmask) = explode( '/', $range, 2 ); | |
| 116 | + $range_decimal = ip2long( $range ); | |
| 117 | + $ip_decimal = ip2long( $ip ); | |
| 118 | + $wildcard_decimal = pow( 2, ( 32 - $netmask ) ) - 1; | |
| 119 | + $netmask_decimal = ~ $wildcard_decimal; | |
| 120 | + return ( ( $ip_decimal & $netmask_decimal ) == ( $range_decimal & $netmask_decimal ) ); | |
| 121 | + } | |
| 122 | + | |
| 123 | + /** | |
| 124 | + * Wildcard IP block check. | |
| 125 | + * | |
| 126 | + * @param string $ip The IP address of the user. | |
| 127 | + * @param string $rule The wildcard range to check against. | |
| 128 | + * @return boolean Whether or not the IP is in the wilcard range. | |
| 129 | + */ | |
| 130 | + public function check_wildcard_rule( $ip, $rule ) { | |
| 131 | + $match = explode( '*', $rule ); | |
| 132 | + $match = $match[0]; | |
| 133 | + return ( substr( $ip, 0, strlen( $match ) ) == $match ); | |
| 134 | + } | |
| 135 | + | |
| 136 | + /** | |
| 137 | + * IP range block check. | |
| 138 | + * | |
| 139 | + * @param string|array $ip The IP address of the user. | |
| 140 | + * @param string $rule The range to check against. | |
| 141 | + * @return boolean Whether or not the IP is in the range. | |
| 142 | + */ | |
| 143 | + public function check_range_rule( $ip, $rule ) { | |
| 144 | + // Check if client has multiple IPs | |
| 145 | + if ( is_array( $ip ) ) { | |
| 146 | + $ip = $ip[0]; | |
| 147 | + } | |
| 148 | + | |
| 149 | + $first_ip = explode( '-', $rule ); | |
| 150 | + $second_ip = explode( '-', $rule ); | |
| 151 | + | |
| 152 | + $start_ip = ip2long( $first_ip[0] ); | |
| 153 | + $end_ip = ip2long( $second_ip[1] ); | |
| 154 | + $request_ip = ip2long( $ip ); | |
| 155 | + | |
| 156 | + return ( $request_ip >= $start_ip && $request_ip <= $end_ip ); | |
| 157 | + } | |
| 158 | +} | |
