summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorYury German <blueknight@gentoo.org>2019-05-22 01:01:36 -0400
committerYury German <blueknight@gentoo.org>2019-05-22 01:01:36 -0400
commit0914c92da22824025992c368c745546e41fbeb84 (patch)
tree965f6adf3b725e56d559fe4a93eff02281499dcc /plugins/jetpack/modules/protect/shared-functions.php
parentDeleting plugins for update (diff)
downloadblogs-gentoo-0914c92da22824025992c368c745546e41fbeb84.tar.gz
blogs-gentoo-0914c92da22824025992c368c745546e41fbeb84.tar.bz2
blogs-gentoo-0914c92da22824025992c368c745546e41fbeb84.zip
Adding Plugins
Updating the following akismet.4.1.2, google-authenticator.0.52, jetpack.7.3.1 Signed-off-by: Yury German <blueknight@gentoo.org>
Diffstat (limited to 'plugins/jetpack/modules/protect/shared-functions.php')
-rw-r--r--plugins/jetpack/modules/protect/shared-functions.php316
1 files changed, 316 insertions, 0 deletions
diff --git a/plugins/jetpack/modules/protect/shared-functions.php b/plugins/jetpack/modules/protect/shared-functions.php
new file mode 100644
index 00000000..322901d8
--- /dev/null
+++ b/plugins/jetpack/modules/protect/shared-functions.php
@@ -0,0 +1,316 @@
+<?php
+/**
+ * These functions are shared by the Protect module and its related json-endpoints
+ */
+/**
+ * Returns an array of IP objects that will never be blocked by the Protect module
+ *
+ * The array is segmented into a local whitelist which applies only to the current site
+ * and a global whitelist which, for multisite installs, applies to the entire networko
+ *
+ * @return array
+ */
+function jetpack_protect_format_whitelist() {
+ $local_whitelist = jetpack_protect_get_local_whitelist();
+ $formatted = array(
+ 'local' => array(),
+ );
+ foreach ( $local_whitelist as $item ) {
+ if ( $item->range ) {
+ $formatted['local'][] = $item->range_low . ' - ' . $item->range_high;
+ } else {
+ $formatted['local'][] = $item->ip_address;
+ }
+ }
+ if ( is_multisite() && current_user_can( 'manage_network' ) ) {
+ $formatted['global'] = array();
+ $global_whitelist = jetpack_protect_get_global_whitelist();
+ if ( false === $global_whitelist ) {
+ // If the global whitelist has never been set, check for a legacy option set prior to 3.6.
+ $global_whitelist = get_site_option( 'jetpack_protect_whitelist', array() );
+ }
+ foreach ( $global_whitelist as $item ) {
+ if ( $item->range ) {
+ $formatted['global'][] = $item->range_low . ' - ' . $item->range_high;
+ } else {
+ $formatted['global'][] = $item->ip_address;
+ }
+ }
+ }
+ return $formatted;
+}
+/**
+ * Gets the local Protect whitelist
+ *
+ * The 'local' part of the whitelist only really applies to multisite installs,
+ * which can have a network wide whitelist, as well as a local list that applies
+ * only to the current site. On single site installs, there will only be a local
+ * whitelist.
+ *
+ * @return array A list of IP Address objects or an empty array
+ */
+function jetpack_protect_get_local_whitelist() {
+ $whitelist = Jetpack_Options::get_option( 'protect_whitelist' );
+ if ( false === $whitelist ) {
+ // The local whitelist has never been set.
+ if ( is_multisite() ) {
+ // On a multisite, we can check for a legacy site_option that existed prior to v 3.6, or default to an empty array.
+ $whitelist = get_site_option( 'jetpack_protect_whitelist', array() );
+ } else {
+ // On a single site, we can just use an empty array.
+ $whitelist = array();
+ }
+ }
+ return $whitelist;
+}
+
+/**
+ * Get the global, network-wide whitelist
+ *
+ * It will revert to the legacy site_option if jetpack_protect_global_whitelist has never been set.
+ *
+ * @return array
+ */
+function jetpack_protect_get_global_whitelist() {
+ $whitelist = get_site_option( 'jetpack_protect_global_whitelist' );
+ if ( false === $whitelist ) {
+ // The global whitelist has never been set. Check for legacy site_option, or default to an empty array.
+ $whitelist = get_site_option( 'jetpack_protect_whitelist', array() );
+ }
+ return $whitelist;
+}
+
+/**
+ * Jetpack Protect Save Whitelist.
+ *
+ * @access public
+ * @param mixed $whitelist Whitelist.
+ * @param bool $global (default: false) Global.
+ * @return Bool.
+ */
+function jetpack_protect_save_whitelist( $whitelist, $global = false ) {
+ $whitelist_error = false;
+ $new_items = array();
+ if ( ! is_array( $whitelist ) ) {
+ return new WP_Error( 'invalid_parameters', __( 'Expecting an array', 'jetpack' ) );
+ }
+ if ( $global && ! is_multisite() ) {
+ return new WP_Error( 'invalid_parameters', __( 'Cannot use global flag on non-multisites', 'jetpack' ) );
+ }
+ if ( $global && ! current_user_can( 'manage_network' ) ) {
+ return new WP_Error( 'permission_denied', __( 'Only super admins can edit the global whitelist', 'jetpack' ) );
+ }
+ // Validate each item.
+ foreach ( $whitelist as $item ) {
+ $item = trim( $item );
+ if ( empty( $item ) ) {
+ continue;
+ }
+ $range = false;
+ if ( strpos( $item, '-' ) ) {
+ $item = explode( '-', $item );
+ $range = true;
+ }
+ $new_item = new stdClass();
+ $new_item->range = $range;
+ if ( ! empty( $range ) ) {
+ $low = trim( $item[0] );
+ $high = trim( $item[1] );
+ if ( ! filter_var( $low, FILTER_VALIDATE_IP ) || ! filter_var( $high, FILTER_VALIDATE_IP ) ) {
+ $whitelist_error = true;
+ break;
+ }
+ if ( ! jetpack_convert_ip_address( $low ) || ! jetpack_convert_ip_address( $high ) ) {
+ $whitelist_error = true;
+ break;
+ }
+ $new_item->range_low = $low;
+ $new_item->range_high = $high;
+ } else {
+ if ( ! filter_var( $item, FILTER_VALIDATE_IP ) ) {
+ $whitelist_error = true;
+ break;
+ }
+ if ( ! jetpack_convert_ip_address( $item ) ) {
+ $whitelist_error = true;
+ break;
+ }
+ $new_item->ip_address = $item;
+ }
+ $new_items[] = $new_item;
+ } // End item loop.
+ if ( ! empty( $whitelist_error ) ) {
+ return new WP_Error( 'invalid_ip', __( 'One of your IP addresses was not valid.', 'jetpack' ) );
+ }
+ if ( $global ) {
+ update_site_option( 'jetpack_protect_global_whitelist', $new_items );
+ // Once a user has saved their global whitelist, we can permanently remove the legacy option.
+ delete_site_option( 'jetpack_protect_whitelist' );
+ } else {
+ Jetpack_Options::update_option( 'protect_whitelist', $new_items );
+ }
+ return true;
+}
+
+/**
+ * Jetpack Protect Get IP.
+ *
+ * @access public
+ * @return IP.
+ */
+function jetpack_protect_get_ip() {
+ $trusted_header_data = get_site_option( 'trusted_ip_header' );
+ if ( isset( $trusted_header_data->trusted_header ) && isset( $_SERVER[ $trusted_header_data->trusted_header ] ) ) {
+ $ip = $_SERVER[ $trusted_header_data->trusted_header ];
+ $segments = $trusted_header_data->segments;
+ $reverse_order = $trusted_header_data->reverse;
+ } else {
+ $ip = $_SERVER['REMOTE_ADDR'];
+ }
+
+ if ( ! $ip ) {
+ return false;
+ }
+
+
+
+ $ips = explode( ',', $ip );
+ if ( ! isset( $segments ) || ! $segments ) {
+ $segments = 1;
+ }
+ if ( isset( $reverse_order ) && $reverse_order ) {
+ $ips = array_reverse( $ips );
+ }
+ $ip_count = count( $ips );
+ if ( 1 === $ip_count ) {
+ return jetpack_clean_ip( $ips[0] );
+ } elseif ( $ip_count >= $segments ) {
+ $the_one = $ip_count - $segments;
+ return jetpack_clean_ip( $ips[ $the_one ] );
+ } else {
+ return jetpack_clean_ip( $_SERVER['REMOTE_ADDR'] );
+ }
+}
+
+/**
+ * Jetpack Clean IP.
+ *
+ * @access public
+ * @param mixed $ip IP.
+ * @return $ip IP.
+ */
+function jetpack_clean_ip( $ip ) {
+
+ // Some misconfigured servers give back extra info, which comes after "unless"
+ $ips = explode( ' unless ', $ip );
+ $ip = $ips[0];
+
+ $ip = trim( $ip );
+ // Check for IPv4 IP cast as IPv6.
+ if ( preg_match( '/^::ffff:(\d+\.\d+\.\d+\.\d+)$/', $ip, $matches ) ) {
+ $ip = $matches[1];
+ }
+
+ if ( function_exists( 'parse_url' ) ) {
+ $parsed_url = parse_url( $ip );
+
+ if ( isset( $parsed_url['host'] ) ) {
+ $ip = $parsed_url['host'];
+ } elseif ( isset( $parsed_url['path'] ) ) {
+ $ip = $parsed_url['path'];
+ }
+ } else {
+ $colon_count = substr_count( $ip, ':' );
+ if ( 1 == $colon_count ) {
+ $ips = explode( ':', $ip );
+ $ip = $ips[0];
+ }
+ }
+
+ return $ip;
+}
+
+/**
+ * Checks an IP to see if it is within a private range.
+ *
+ * @param int $ip IP.
+ * @return bool
+ */
+function jetpack_protect_ip_is_private( $ip ) {
+ // We are dealing with ipv6, so we can simply rely on filter_var.
+ if ( false === strpos( $ip, '.' ) ) {
+ return ! filter_var( $ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE );
+ }
+ // We are dealing with ipv4.
+ $private_ip4_addresses = array(
+ '10.0.0.0|10.255.255.255', // Single class A network.
+ '172.16.0.0|172.31.255.255', // 16 contiguous class B network.
+ '192.168.0.0|192.168.255.255', // 256 contiguous class C network.
+ '169.254.0.0|169.254.255.255', // Link-local address also referred to as Automatic Private IP Addressing.
+ '127.0.0.0|127.255.255.255', // localhost.
+ );
+ $long_ip = ip2long( $ip );
+ if ( -1 !== $long_ip ) {
+ foreach ( $private_ip4_addresses as $pri_addr ) {
+ list ( $start, $end ) = explode( '|', $pri_addr );
+ if ( $long_ip >= ip2long( $start ) && $long_ip <= ip2long( $end ) ) {
+ return true;
+ }
+ }
+ }
+ return false;
+}
+
+/**
+ * Uses inet_pton if available to convert an IP address to a binary string.
+ * If inet_pton is not available, ip2long will convert the address to an integer.
+ * Returns false if an invalid IP address is given.
+ *
+ * NOTE: ip2long will return false for any ipv6 address. servers that do not support
+ * inet_pton will not support ipv6
+ *
+ * @access public
+ * @param mixed $ip IP.
+ * @return int|string|bool
+ */
+function jetpack_convert_ip_address( $ip ) {
+ if ( function_exists( 'inet_pton' ) ) {
+ return inet_pton( $ip );
+ }
+ return ip2long( $ip );
+}
+
+/**
+ * Checks that a given IP address is within a given low - high range.
+ * Servers that support inet_pton will use that function to convert the ip to number,
+ * while other servers will use ip2long.
+ *
+ * NOTE: servers that do not support inet_pton cannot support ipv6.
+ *
+ * @access public
+ * @param mixed $ip IP.
+ * @param mixed $range_low Range Low.
+ * @param mixed $range_high Range High.
+ * @return Bool.
+ */
+function jetpack_protect_ip_address_is_in_range( $ip, $range_low, $range_high ) {
+ // The inet_pton will give us binary string of an ipv4 or ipv6.
+ // We can then use strcmp to see if the address is in range.
+ if ( function_exists( 'inet_pton' ) ) {
+ $ip_num = inet_pton( $ip );
+ $ip_low = inet_pton( $range_low );
+ $ip_high = inet_pton( $range_high );
+ if ( $ip_num && $ip_low && $ip_high && strcmp( $ip_num, $ip_low ) >= 0 && strcmp( $ip_num, $ip_high ) <= 0 ) {
+ return true;
+ }
+ // The ip2long will give us an integer of an ipv4 address only. it will produce FALSE for ipv6.
+ } else {
+ $ip_num = ip2long( $ip );
+ $ip_low = ip2long( $range_low );
+ $ip_high = ip2long( $range_high );
+ if ( $ip_num && $ip_low && $ip_high && $ip_num >= $ip_low && $ip_num <= $ip_high ) {
+ return true;
+ }
+ }
+ return false;
+}