nextcloud / server

lib/private/Security/Normalizer/IpAddress.php

Indentation +74 added lines, -74 removed lines

@@ -17,89 +17,89 @@
  * @package OC\Security\Normalizer
  */
 class IpAddress {
-	/**
-	 * @param string $ip IP to normalize
-	 */
-	public function __construct(
-		private string $ip,
-	) {
-	}
+    /**
+     * @param string $ip IP to normalize
+     */
+    public function __construct(
+        private string $ip,
+    ) {
+    }
 
-	/**
-	 * Return the given subnet for an IPv6 address
-	 * Rely on security.ipv6_normalized_subnet_size, defaults to 56
-	 */
-	private function getIPv6Subnet(string $ip): string {
-		if ($ip[0] === '[' && $ip[-1] === ']') { // If IP is with brackets, for example [::1]
-			$ip = substr($ip, 1, strlen($ip) - 2);
-		}
-		$pos = strpos($ip, '%'); // if there is an explicit interface added to the IP, e.g. fe80::ae2d:d1e7:fe1e:9a8d%enp2s0
-		if ($pos !== false) {
-			$ip = substr($ip, 0, $pos - 1);
-		}
+    /**
+     * Return the given subnet for an IPv6 address
+     * Rely on security.ipv6_normalized_subnet_size, defaults to 56
+     */
+    private function getIPv6Subnet(string $ip): string {
+        if ($ip[0] === '[' && $ip[-1] === ']') { // If IP is with brackets, for example [::1]
+            $ip = substr($ip, 1, strlen($ip) - 2);
+        }
+        $pos = strpos($ip, '%'); // if there is an explicit interface added to the IP, e.g. fe80::ae2d:d1e7:fe1e:9a8d%enp2s0
+        if ($pos !== false) {
+            $ip = substr($ip, 0, $pos - 1);
+        }
 
-		$config = \OCP\Server::get(IConfig::class);
-		$maskSize = min(64, $config->getSystemValueInt('security.ipv6_normalized_subnet_size', 56));
-		$maskSize = max(32, $maskSize);
-		if (PHP_INT_SIZE === 4) {
-			if ($maskSize === 64) {
-				$value = -1;
-			} elseif ($maskSize === 63) {
-				$value = PHP_INT_MAX;
-			} else {
-				$value = (1 << $maskSize - 32) - 1;
-			}
-			// as long as we support 32bit PHP we cannot use the `P` pack formatter (and not overflow 32bit integer)
-			$mask = pack('VVVV', -1, $value, 0, 0);
-		} else {
-			$mask = pack('VVP', (1 << 32) - 1, (1 << $maskSize - 32) - 1, 0);
-		}
+        $config = \OCP\Server::get(IConfig::class);
+        $maskSize = min(64, $config->getSystemValueInt('security.ipv6_normalized_subnet_size', 56));
+        $maskSize = max(32, $maskSize);
+        if (PHP_INT_SIZE === 4) {
+            if ($maskSize === 64) {
+                $value = -1;
+            } elseif ($maskSize === 63) {
+                $value = PHP_INT_MAX;
+            } else {
+                $value = (1 << $maskSize - 32) - 1;
+            }
+            // as long as we support 32bit PHP we cannot use the `P` pack formatter (and not overflow 32bit integer)
+            $mask = pack('VVVV', -1, $value, 0, 0);
+        } else {
+            $mask = pack('VVP', (1 << 32) - 1, (1 << $maskSize - 32) - 1, 0);
+        }
 
-		$binary = \inet_pton($ip);
-		return inet_ntop($binary & $mask) . '/' . $maskSize;
-	}
+        $binary = \inet_pton($ip);
+        return inet_ntop($binary & $mask) . '/' . $maskSize;
+    }
 
-	/**
-	 * Returns the IPv4 address embedded in an IPv6 if applicable.
-	 * The detected format is "::ffff:x.x.x.x" using the binary form.
-	 *
-	 * @return string|null embedded IPv4 string or null if none was found
-	 */
-	private function getEmbeddedIpv4(string $ipv6): ?string {
-		$binary = inet_pton($ipv6);
-		if (!$binary) {
-			return null;
-		}
+    /**
+     * Returns the IPv4 address embedded in an IPv6 if applicable.
+     * The detected format is "::ffff:x.x.x.x" using the binary form.
+     *
+     * @return string|null embedded IPv4 string or null if none was found
+     */
+    private function getEmbeddedIpv4(string $ipv6): ?string {
+        $binary = inet_pton($ipv6);
+        if (!$binary) {
+            return null;
+        }
 
-		$mask = inet_pton('::FFFF:FFFF');
-		if (($binary & ~$mask) !== inet_pton('::FFFF:0.0.0.0')) {
-			return null;
-		}
+        $mask = inet_pton('::FFFF:FFFF');
+        if (($binary & ~$mask) !== inet_pton('::FFFF:0.0.0.0')) {
+            return null;
+        }
 
-		return inet_ntop(substr($binary, -4));
-	}
+        return inet_ntop(substr($binary, -4));
+    }
 
 
-	/**
-	 * Gets either the /32 (IPv4) or the /56 (default for IPv6) subnet of an IP address
-	 */
-	public function getSubnet(): string {
-		if (filter_var($this->ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
-			return $this->ip . '/32';
-		}
+    /**
+     * Gets either the /32 (IPv4) or the /56 (default for IPv6) subnet of an IP address
+     */
+    public function getSubnet(): string {
+        if (filter_var($this->ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
+            return $this->ip . '/32';
+        }
 
-		$ipv4 = $this->getEmbeddedIpv4($this->ip);
-		if ($ipv4 !== null) {
-			return $ipv4 . '/32';
-		}
+        $ipv4 = $this->getEmbeddedIpv4($this->ip);
+        if ($ipv4 !== null) {
+            return $ipv4 . '/32';
+        }
 
-		return $this->getIPv6Subnet($this->ip);
-	}
+        return $this->getIPv6Subnet($this->ip);
+    }
 
-	/**
-	 * Returns the specified IP address
-	 */
-	public function __toString(): string {
-		return $this->ip;
-	}
+    /**
+     * Returns the specified IP address
+     */
+    public function __toString(): string {
+        return $this->ip;
+    }
 }