bool InvokeCallback(X509Certificate leaf, X509Chain chain, SslPolicyErrors errors)
{
object sender = null;
if (request != null)
{
sender = request;
}
else if (owner != null && owner.TryGetTarget(out var sslStream))
{
sender = sslStream;
}
return(certValidationCallback.Invoke(sender, leaf, chain, errors));
}
ValidationResult ValidateChain(string host, bool server, X509Certificate leaf,
ref X509Chain chain, X509CertificateCollection certs,
SslPolicyErrors errors)
{
// user_denied is true if the user callback is called and returns false
bool user_denied = false;
bool result = false;
var hasCallback = certValidationCallback != null || callbackWrapper != null;
if (tlsStream != null)
{
request.ServicePoint.UpdateServerCertificate(leaf);
}
if (leaf == null)
{
errors |= SslPolicyErrors.RemoteCertificateNotAvailable;
if (hasCallback)
{
if (callbackWrapper != null)
{
result = callbackWrapper.Invoke(certValidationCallback, leaf, null, (MonoSslPolicyErrors)errors);
}
else
{
result = certValidationCallback.Invoke(sender, leaf, null, errors);
}
user_denied = !result;
}
return(new ValidationResult(result, user_denied, 0, (MonoSslPolicyErrors)errors));
}
// Ignore port number when validating certificates.
if (!string.IsNullOrEmpty(host))
{
var pos = host.IndexOf(':');
if (pos > 0)
{
host = host.Substring(0, pos);
}
}
ICertificatePolicy policy = ServicePointManager.GetLegacyCertificatePolicy();
int status11 = 0; // Error code passed to the obsolete ICertificatePolicy callback
bool wantsChain = SystemCertificateValidator.NeedsChain(settings);
if (!wantsChain && hasCallback)
{
if (settings == null || settings.CallbackNeedsCertificateChain)
{
wantsChain = true;
}
}
var xerrors = (MonoSslPolicyErrors)errors;
result = provider.ValidateCertificate(this, host, server, certs, wantsChain, ref chain, ref xerrors, ref status11);
errors = (SslPolicyErrors)xerrors;
if (status11 == 0 && errors != 0)
{
// TRUST_E_FAIL
status11 = unchecked ((int)0x800B010B);
}
if (policy != null && (!(policy is DefaultCertificatePolicy) || certValidationCallback == null))
{
ServicePoint sp = null;
if (request != null)
{
sp = request.ServicePointNoLock;
}
// pre 2.0 callback
result = policy.CheckValidationResult(sp, leaf, request, status11);
user_denied = !result && !(policy is DefaultCertificatePolicy);
}
// If there's a 2.0 callback, it takes precedence
if (hasCallback)
{
if (callbackWrapper != null)
{
result = callbackWrapper.Invoke(certValidationCallback, leaf, chain, (MonoSslPolicyErrors)errors);
}
else
{
result = certValidationCallback.Invoke(sender, leaf, chain, errors);
}
user_denied = !result;
}
return(new ValidationResult(result, user_denied, status11, (MonoSslPolicyErrors)errors));
}
internal static bool InvokeCallback(ServerCertValidationCallback callback, object sender, X509Certificate certificate, X509Chain chain, MonoSslPolicyErrors sslPolicyErrors)
{
return(callback.Invoke(sender, certificate, chain, (SslPolicyErrors)sslPolicyErrors));
}
ValidationResult ValidateChain(string host, bool server, XX509CertificateCollection certs, SslPolicyErrors errors)
{
// user_denied is true if the user callback is called and returns false
bool user_denied = false;
bool result = false;
var hasCallback = certValidationCallback != null || callbackWrapper != null;
X509Certificate leaf;
if (certs == null || certs.Count == 0)
{
leaf = null;
}
else
{
leaf = certs [0];
}
if (tlsStream != null)
{
request.ServicePoint.SetServerCertificate(leaf);
}
if (leaf == null)
{
errors |= SslPolicyErrors.RemoteCertificateNotAvailable;
if (hasCallback)
{
if (callbackWrapper != null)
{
result = callbackWrapper.Invoke(certValidationCallback, leaf, null, (MonoSslPolicyErrors)errors);
}
else
{
result = certValidationCallback.Invoke(sender, leaf, null, errors);
}
user_denied = !result;
}
return(new ValidationResult(result, user_denied, 0, (MonoSslPolicyErrors)errors));
}
ICertificatePolicy policy = ServicePointManager.GetLegacyCertificatePolicy();
int status11 = 0; // Error code passed to the obsolete ICertificatePolicy callback
X509Chain chain = null;
bool wantsChain = SystemCertificateValidator.NeedsChain(settings);
if (!wantsChain && hasCallback)
{
if (settings == null || settings.CallbackNeedsCertificateChain)
{
wantsChain = true;
}
}
if (wantsChain)
{
chain = SystemCertificateValidator.CreateX509Chain(certs);
}
if (wantsChain || SystemCertificateValidator.NeedsChain(settings))
{
SystemCertificateValidator.BuildX509Chain(certs, chain, ref errors, ref status11);
}
bool providerValidated = false;
if (provider != null && provider.HasCustomSystemCertificateValidator)
{
var xerrors = (MonoSslPolicyErrors)errors;
var xchain = (XX509Chain)(object)chain;
providerValidated = provider.InvokeSystemCertificateValidator(this, host, server, certs, xchain, out result, ref xerrors, ref status11);
errors = (SslPolicyErrors)xerrors;
}
if (!providerValidated)
{
result = SystemCertificateValidator.Evaluate(settings, host, certs, chain, ref errors, ref status11);
}
if (policy != null && (!(policy is DefaultCertificatePolicy) || certValidationCallback == null))
{
ServicePoint sp = null;
if (request != null)
{
sp = request.ServicePointNoLock;
}
if (status11 == 0 && errors != 0)
{
// TRUST_E_FAIL
status11 = unchecked ((int)0x800B010B);
}
// pre 2.0 callback
result = policy.CheckValidationResult(sp, leaf, request, status11);
user_denied = !result && !(policy is DefaultCertificatePolicy);
}
// If there's a 2.0 callback, it takes precedence
if (hasCallback)
{
if (callbackWrapper != null)
{
result = callbackWrapper.Invoke(certValidationCallback, leaf, chain, (MonoSslPolicyErrors)errors);
}
else
{
result = certValidationCallback.Invoke(sender, leaf, chain, errors);
}
user_denied = !result;
}
return(new ValidationResult(result, user_denied, status11, (MonoSslPolicyErrors)errors));
}
ValidationResult ValidateChain(string host, X509Certificate2Collection certs, SslPolicyErrors errors)
{
// user_denied is true if the user callback is called and returns false
bool user_denied = false;
bool result = false;
var hasCallback = certValidationCallback != null || callbackWrapper != null;
X509Certificate2 leaf;
if (certs == null || certs.Count == 0)
{
leaf = null;
}
else
{
leaf = certs [0];
}
if (tlsStream != null)
{
request.ServicePoint.SetServerCertificate(leaf);
}
if (leaf == null)
{
errors |= SslPolicyErrors.RemoteCertificateNotAvailable;
if (hasCallback)
{
if (callbackWrapper != null)
{
result = callbackWrapper.Invoke(certValidationCallback, leaf, null, (MonoSslPolicyErrors)errors);
}
else
{
result = certValidationCallback.Invoke(sender, leaf, null, errors);
}
user_denied = !result;
}
return(new ValidationResult(result, user_denied, 0, (MonoSslPolicyErrors)errors));
}
bool needsChain;
bool skipSystemValidators = false;
if (!CertificateValidationHelper.SupportsX509Chain || is_mobile || is_macosx)
{
needsChain = false;
}
else if (settings != null)
{
skipSystemValidators = settings.SkipSystemValidators;
needsChain = !settings.SkipSystemValidators || settings.CallbackNeedsCertificateChain;
}
else
{
needsChain = true;
}
ICertificatePolicy policy = ServicePointManager.GetLegacyCertificatePolicy();
int status11 = 0; // Error code passed to the obsolete ICertificatePolicy callback
X509Chain chain = null;
if (needsChain)
{
chain = new X509Chain();
chain.ChainPolicy = new X509ChainPolicy();
#if !MONOTOUCH
chain.ChainPolicy.RevocationMode = revocation_mode;
#endif
for (int i = 1; i < certs.Count; i++)
{
chain.ChainPolicy.ExtraStore.Add(certs [i]);
}
}
#if !MONOTOUCH
if (needsChain)
{
try {
if (!chain.Build(leaf))
{
errors |= GetErrorsFromChain(chain);
}
} catch (Exception e) {
Console.Error.WriteLine("ERROR building certificate chain: {0}", e);
Console.Error.WriteLine("Please, report this problem to the Mono team");
errors |= SslPolicyErrors.RemoteCertificateChainErrors;
}
}
// for OSX and iOS we're using the native API to check for the SSL server policy and host names
if (!is_macosx)
{
if (!CheckCertificateUsage(leaf))
{
errors |= SslPolicyErrors.RemoteCertificateChainErrors;
status11 = -2146762490; //CERT_E_PURPOSE 0x800B0106
}
if (host != null && !CheckServerIdentity(leaf, host))
{
errors |= SslPolicyErrors.RemoteCertificateNameMismatch;
status11 = -2146762481; // CERT_E_CN_NO_MATCH 0x800B010F
}
}
#endif
if (is_macosx && !skipSystemValidators)
{
// Attempt to use OSX certificates
// Ideally we should return the SecTrustResult
OSX509Certificates.SecTrustResult trustResult = OSX509Certificates.SecTrustResult.Deny;
try {
trustResult = OSX509Certificates.TrustEvaluateSsl(certs, host);
// We could use the other values of trustResult to pass this extra information
// to the .NET 2 callback for values like SecTrustResult.Confirm
result = (trustResult == OSX509Certificates.SecTrustResult.Proceed ||
trustResult == OSX509Certificates.SecTrustResult.Unspecified);
} catch {
// Ignore
}
if (result)
{
// TrustEvaluateSsl was successful so there's no trust error
// IOW we discard our own chain (since we trust OSX one instead)
errors = 0;
}
else
{
// callback and DefaultCertificatePolicy needs this since 'result' is not specified
status11 = (int)trustResult;
errors |= SslPolicyErrors.RemoteCertificateChainErrors;
}
}
#if MONODROID && SECURITY_DEP
if (!skipSystemValidators)
{
result = AndroidPlatform.TrustEvaluateSsl(certs, sender, leaf, chain, errors);
if (result)
{
// chain.Build() + GetErrorsFromChain() (above) will ALWAYS fail on
// Android (there are no mozroots or preinstalled root certificates),
// thus `errors` will ALWAYS have RemoteCertificateChainErrors.
// Android just verified the chain; clear RemoteCertificateChainErrors.
errors &= ~SslPolicyErrors.RemoteCertificateChainErrors;
}
}
#endif
if (policy != null && (!(policy is DefaultCertificatePolicy) || certValidationCallback == null))
{
ServicePoint sp = null;
if (request != null)
{
sp = request.ServicePointNoLock;
}
if (status11 == 0 && errors != 0)
{
status11 = GetStatusFromChain(chain);
}
// pre 2.0 callback
result = policy.CheckValidationResult(sp, leaf, request, status11);
user_denied = !result && !(policy is DefaultCertificatePolicy);
}
// If there's a 2.0 callback, it takes precedence
if (hasCallback)
{
if (callbackWrapper != null)
{
result = callbackWrapper.Invoke(certValidationCallback, leaf, chain, (MonoSslPolicyErrors)errors);
}
else
{
result = certValidationCallback.Invoke(sender, leaf, chain, errors);
}
user_denied = !result;
}
return(new ValidationResult(result, user_denied, status11, (MonoSslPolicyErrors)errors));
}
ValidationResult ValidateChain(string host, XX509CertificateCollection certs, SslPolicyErrors errors)
{
// user_denied is true if the user callback is called and returns false
bool user_denied = false;
bool result = false;
var hasCallback = certValidationCallback != null || callbackWrapper != null;
var anchors = settings != null ? settings.TrustAnchors : null;
var systemValidator = GetSystemCertificateValidator();
X509Certificate leaf;
if (certs == null || certs.Count == 0)
{
leaf = null;
}
else
{
leaf = certs [0];
}
if (tlsStream != null)
{
request.ServicePoint.SetServerCertificate(leaf);
}
if (leaf == null)
{
errors |= SslPolicyErrors.RemoteCertificateNotAvailable;
if (hasCallback)
{
if (callbackWrapper != null)
{
result = callbackWrapper.Invoke(certValidationCallback, leaf, null, (MonoSslPolicyErrors)errors);
}
else
{
result = certValidationCallback.Invoke(sender, leaf, null, errors);
}
user_denied = !result;
}
return(new ValidationResult(result, user_denied, 0, (MonoSslPolicyErrors)errors));
}
bool needsChain;
bool skipSystemValidators = false;
if (!CertificateValidationHelper.SupportsX509Chain || is_mobile || is_macosx)
{
needsChain = false;
}
else if (settings != null)
{
skipSystemValidators = settings.SkipSystemValidators;
needsChain = !settings.SkipSystemValidators || settings.CallbackNeedsCertificateChain;
}
else
{
needsChain = true;
}
ICertificatePolicy policy = ServicePointManager.GetLegacyCertificatePolicy();
int status11 = 0; // Error code passed to the obsolete ICertificatePolicy callback
X509Chain chain = null;
#if !MOBILE
if (needsChain)
{
chain = systemValidator.ComputeX509Chain(certs, ref errors, ref status11);
}
#endif
systemValidator.CheckUsage(certs, host, ref errors, ref status11);
if (!skipSystemValidators)
{
result = systemValidator.EvaluateSystem(certs, anchors, host, chain, ref errors, ref status11);
}
if (policy != null && (!(policy is DefaultCertificatePolicy) || certValidationCallback == null))
{
ServicePoint sp = null;
if (request != null)
{
sp = request.ServicePointNoLock;
}
if (status11 == 0 && errors != 0)
{
// TRUST_E_FAIL
status11 = unchecked ((int)0x800B010B);
}
// pre 2.0 callback
result = policy.CheckValidationResult(sp, leaf, request, status11);
user_denied = !result && !(policy is DefaultCertificatePolicy);
}
// If there's a 2.0 callback, it takes precedence
if (hasCallback)
{
if (callbackWrapper != null)
{
result = callbackWrapper.Invoke(certValidationCallback, leaf, chain, (MonoSslPolicyErrors)errors);
}
else
{
result = certValidationCallback.Invoke(sender, leaf, chain, errors);
}
user_denied = !result;
}
return(new ValidationResult(result, user_denied, status11, (MonoSslPolicyErrors)errors));
}
