Class UriValidator

Namespace

Geotab.Checkmate.ObjectModel

Assembly

Geotab.Checkmate.ObjectModel.dll

A collection of common methods used to validate and work with System.Uris.

public static class UriValidator

Inheritance

object

UriValidator

Inherited Members

object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Methods

IsExternalUriForbiddenAsync(Uri)

Checks that a System.Uri points to an external resource. Prevents a SSRF attack.

public static Task<bool> IsExternalUriForbiddenAsync(Uri path)

Parameters

path Uri

The System.Uri to check.

Returns

Task<bool>

A Task representing the asynchronous operation.

Exceptions

SocketException

According to MS docs this is thrown when the provided address/host name cannot be resolved.

IsReservedIPv4Address(IPAddress)

Detects all private/reserved IPv4 addresses. The latest RFC (as of Oct 2018) is https://tools.ietf.org/html/rfc6890 with a small update here https://tools.ietf.org/html/rfc8190. This is summarized here https://en.wikipedia.org/wiki/Reserved_IP_addresses.

public static bool IsReservedIPv4Address(IPAddress ip)

Parameters

ip IPAddress

The IPAddress to inspect.

Returns

bool

true if the IP address is in a reserved range, false otherwise.