public InvalidProtocolEventArgs(Uri uri, IEnumerable <string> remainingSegments, IWwwFormUrlDecoderEntry invalidQueryEntry = null)
{
this.Uri = uri;
this.RemainingSegments = remainingSegments != null?remainingSegments.ToList() : (IEnumerable <string>) new string[0];
if (invalidQueryEntry != null)
{
this.QueryEntryName = invalidQueryEntry.Name;
this.QueryEntryValue = invalidQueryEntry.Value;
}
}
/// <summary>
/// [WIP]<para/>
/// Parses XMPP IRIs and URIs based on RFC 5122 and returns the result.
/// </summary>
/// <param name="uri">The URI or IRI that should get parsed.</param>
/// <returns>The URI or IRI result or null if an error occurred.</returns>
public static IUriAction parse(Uri uri)
{
if (!string.IsNullOrEmpty(uri?.OriginalString))
{
if (string.Equals(uri.Scheme.ToLowerInvariant(), "xmpp"))
{
string tmp = uri.OriginalString;
// 1. remove 'xmpp:'
tmp = tmp.Substring(5);
// 2. Authority
string authority = null;
if (tmp.StartsWith("//"))
{
tmp.Substring(2);
int authEnd = tmp.IndexOf('/');
if (authEnd < 0)
{
authEnd = tmp.IndexOf('?');
if (authEnd < 0)
{
authEnd = tmp.IndexOf('#');
if (authEnd < 0)
{
authEnd = tmp.Length <= 0 ? 0 : tmp.Length - 1;
}
}
authority = tmp.Substring(0, authEnd);
tmp = tmp.Substring(authEnd + 1);
}
}
if (string.Equals(uri.AbsolutePath, "iot-register"))
{
WwwFormUrlDecoder query = parseUriQuery(uri);
if (query is null)
{
return(null);
}
IWwwFormUrlDecoderEntry macEntry = query.FirstOrDefault(x => x.Name.StartsWith("mac"));
if (macEntry is null || string.IsNullOrEmpty(macEntry.Value))
{
Logger.Error("None or invalid IoT MAC address: " + uri.OriginalString);
return(null);
}
IWwwFormUrlDecoderEntry algoEntry = query.FirstOrDefault(x => x.Name.StartsWith("algo"));
if (algoEntry is null || string.IsNullOrEmpty(algoEntry.Value))
{
Logger.Error("None or invalid IoT key algorithm: " + uri.OriginalString);
return(null);
}
IWwwFormUrlDecoderEntry keyEntry = query.FirstOrDefault(x => x.Name.StartsWith("key"));
if (keyEntry is null || string.IsNullOrEmpty(keyEntry.Value))
{
Logger.Error("None or invalid IoT key: " + uri.OriginalString);
return(null);
}
return(new RegisterIoTUriAction(macEntry.Value, algoEntry.Value, keyEntry.Value));
}
else
{
// Check if is OMEMO fingerprint URI:
WwwFormUrlDecoder query = parseUriQuery(uri);
if (query is null)
{
return(null);
}
IWwwFormUrlDecoderEntry entry = query.FirstOrDefault(x => x.Name.StartsWith("omemo-sid-"));
if (!(entry is null))
{
ECPubKeyModel pubKey = null;
try
{
byte[] fingerprintBytes = SharedUtils.HexStringToByteArray(entry.Value);
pubKey = new ECPubKeyModel(fingerprintBytes);
}
catch (Exception e)
{
Logger.Error("Failed to parse XMPP URI. Parsing fingerprint failed: " + entry.Value, e);
return(null);
}
if (uint.TryParse(entry.Name.Replace("omemo-sid-", "").Trim(), out uint deviceId))
{
OmemoProtocolAddress address = new OmemoProtocolAddress(uri.LocalPath, deviceId);
return(new OmemoFingerprintUriAction(new OmemoFingerprint(pubKey, address)));
}
else
{
Logger.Warn("Failed to parse XMPP URI. Invalid device ID: " + entry.Name);
}
}
}
}
else
{
Logger.Warn("Failed to parse XMPP URI. No 'xmpp' scheme.");
}
}
return(null);
}
