/// <summary>
/// Request certificate from the ACME server
/// </summary>
/// <param name="binding"></param>
/// <returns></returns>
public CertificateInfo RequestCertificate(ICsrPlugin csrPlugin, RunLevel runLevel, Renewal renewal, Target target, OrderDetails order)
{
// What are we going to get?
var pfxFileInfo = new FileInfo(PfxFilePath(renewal));
// Determine/check the common name
var identifiers = target.GetHosts(false);
var commonNameUni = target.CommonName;
var commonNameAscii = string.Empty;
if (!string.IsNullOrWhiteSpace(commonNameUni))
{
var idn = new IdnMapping();
commonNameAscii = idn.GetAscii(commonNameUni);
if (!identifiers.Contains(commonNameAscii, StringComparer.InvariantCultureIgnoreCase))
{
_log.Warning($"Common name {commonNameUni} provided is invalid.");
commonNameAscii = identifiers.First();
commonNameUni = idn.GetUnicode(commonNameAscii);
}
}
// Determine the friendly name
var friendlyName = renewal.FriendlyName;
if (string.IsNullOrEmpty(friendlyName))
{
friendlyName = target.FriendlyName;
}
if (string.IsNullOrEmpty(friendlyName))
{
friendlyName = commonNameUni;
}
// Try using cached certificate first to avoid rate limiting during
// (initial?) deployment troubleshooting. Real certificate requests
// will only be done once per day maximum unless the --force parameter
// is used.
var cache = CachedInfo(renewal);
if (cache != null &&
cache.CacheFile.LastWriteTime > DateTime.Now.AddDays(-1) &&
cache.Match(target))
{
if (runLevel.HasFlag(RunLevel.IgnoreCache))
{
_log.Warning("Cached certificate available but not used with --{switch}. Use 'Renew specific' or " +
"'Renew all' in the main menu to run unscheduled renewals without hitting rate limits.",
nameof(MainArguments.Force).ToLower());
}
else
{
_log.Warning("Using cached certificate for {friendlyName}. To force issue of a new certificate within " +
"24 hours, delete the .pfx file from the CertificatePath or run with the --{switch} switch. " +
"Be ware that you might run into rate limits doing so.",
friendlyName,
nameof(MainArguments.Force).ToLower());
return(cache);
}
}
var csr = csrPlugin.GenerateCsr(commonNameAscii, identifiers);
var csrBytes = csr.CreateSigningRequest();
order = _client.SubmitCsr(order, csrBytes);
File.WriteAllText(GetPath(renewal, "-csr.pem"), _pemService.GetPem("CERTIFICATE REQUEST", csrBytes));
_log.Information("Requesting certificate {friendlyName}", friendlyName);
var rawCertificate = _client.GetCertificate(order);
if (rawCertificate == null)
{
throw new Exception($"Unable to get certificate");
}
var certificate = new X509Certificate2(rawCertificate);
var certificateExport = certificate.Export(X509ContentType.Cert);
var crtPem = _pemService.GetPem("CERTIFICATE", certificateExport);
// Get issuer certificate
var issuerCertificate = new X509Certificate2(rawCertificate.Skip(certificateExport.Length).ToArray());
var issuerCertificateExport = issuerCertificate.Export(X509ContentType.Cert);
var issuerPem = _pemService.GetPem("CERTIFICATE", issuerCertificateExport);
// Build pfx archive
var pfx = new bc.Pkcs.Pkcs12Store();
var bcCertificate = _pemService.ParsePem <bc.X509.X509Certificate>(crtPem);
var bcCertificateEntry = new bc.Pkcs.X509CertificateEntry(bcCertificate);
var bcCertificateAlias = bcCertificate.SubjectDN.ToString();
var bcPrivateKeyEntry = new bc.Pkcs.AsymmetricKeyEntry(csrPlugin.GetPrivateKey());
pfx.SetCertificateEntry(bcCertificateAlias, bcCertificateEntry);
pfx.SetKeyEntry(bcCertificateAlias, bcPrivateKeyEntry, new[] { bcCertificateEntry });
var bcIssuer = _pemService.ParsePem <bc.X509.X509Certificate>(issuerPem);
var bcIssuerEntry = new bc.Pkcs.X509CertificateEntry(bcIssuer);
var bcIssuerAlias = bcIssuer.SubjectDN.ToString();
pfx.SetCertificateEntry(bcIssuerAlias, bcIssuerEntry);
var pfxStream = new MemoryStream();
pfx.Save(pfxStream, null, new bc.Security.SecureRandom());
pfxStream.Position = 0;
using (var pfxStreamReader = new BinaryReader(pfxStream))
{
var tempPfx = new X509Certificate2(
pfxStreamReader.ReadBytes((int)pfxStream.Length),
(string)null,
X509KeyStorageFlags.MachineKeySet |
X509KeyStorageFlags.PersistKeySet |
X509KeyStorageFlags.Exportable);
if (csrPlugin.CanConvert())
{
try
{
var converted = csrPlugin.Convert(tempPfx.PrivateKey);
if (converted != null)
{
tempPfx.PrivateKey = converted;
}
}
catch
{
_log.Warning("Private key conversion error.");
}
}
tempPfx.FriendlyName = $"{friendlyName} {DateTime.Now.ToUserString()}";
File.WriteAllBytes(pfxFileInfo.FullName, tempPfx.Export(X509ContentType.Pfx, renewal.PfxPassword));
pfxFileInfo.Refresh();
}
// Update LastFriendlyName so that the user sees
// the most recently issued friendlyName in
// the WACS GUI
renewal.LastFriendlyName = friendlyName;
// Recreate X509Certificate2 with correct flags for Store/Install
return(new CertificateInfo()
{
Certificate = ReadForUse(pfxFileInfo, renewal.PfxPassword),
CacheFile = pfxFileInfo,
CacheFilePassword = renewal.PfxPassword
});
}
/// <summary>
/// Request certificate from the ACME server
/// </summary>
/// <param name="binding"></param>
/// <returns></returns>
public CertificateInfo RequestCertificate(ICsrPlugin csrPlugin, Renewal renewal, Target target, OrderDetails order)
{
// What are we going to get?
var pfxFileInfo = new FileInfo(PfxFilePath(renewal));
// Determine/check the common name
var identifiers = target.GetHosts(false);
var commonName = target.CommonName;
if (!string.IsNullOrWhiteSpace(commonName))
{
var idn = new IdnMapping();
commonName = idn.GetAscii(commonName);
if (!identifiers.Contains(commonName, StringComparer.InvariantCultureIgnoreCase))
{
_log.Warning($"Common name {commonName} provided is invalid.");
commonName = identifiers.First();
}
}
// Try using cached certificate first to avoid rate limiting during
// (initial?) deployment troubleshooting. Real certificate requests
// will only be done once per day maximum.
if (pfxFileInfo.Exists && pfxFileInfo.LastWriteTime > DateTime.Now.AddDays(-1))
{
try
{
var cached = new CertificateInfo()
{
Certificate = ReadForUse(pfxFileInfo, renewal.PfxPassword),
PfxFile = pfxFileInfo
};
var idn = new IdnMapping();
if (cached.SubjectName == commonName &&
cached.HostNames.Count == identifiers.Count() &&
cached.HostNames.All(h => identifiers.Contains(idn.GetAscii(h))))
{
if (_options.Force)
{
_log.Warning("Cached certificate available but not used with --{switch}. Use 'Renew specific' or 'Renew all' in the main menu to run unscheduled renewals without hitting rate limits.", nameof(MainArguments.Force).ToLower());
}
else
{
_log.Warning("Using cached certificate for {friendlyName}. To force issue of a new certificate within 24 hours, delete the .pfx file from the CertificatePath or run with the --{switch} switch. Be ware that you might run into rate limits doing so.", renewal.FriendlyName, nameof(MainArguments.Force).ToLower());
return(cached);
}
}
}
catch
{
// File corrupt or invalid password?
_log.Warning("Unable to read from certificate cache");
}
}
var csr = csrPlugin.GenerateCsr(commonName, identifiers);
var csrBytes = csr.CreateSigningRequest();
order = _client.SubmitCsr(order, csrBytes);
if (Settings.Default.SavePrivateKeyPem)
{
File.WriteAllText(GetPath(renewal, "-key.pem"), GetPem(csrPlugin.GeneratePrivateKey()));
}
File.WriteAllText(GetPath(renewal, "-csr.pem"), GetPem("CERTIFICATE REQUEST", csrBytes));
_log.Information("Requesting certificate {friendlyName}", renewal.FriendlyName);
var rawCertificate = _client.GetCertificate(order);
if (rawCertificate == null)
{
throw new Exception($"Unable to get certificate");
}
var certificate = new X509Certificate2(rawCertificate);
var certificateExport = certificate.Export(X509ContentType.Cert);
var crtDerFile = GetPath(renewal, $"-crt.der");
var crtPemFile = GetPath(renewal, $"-crt.pem");
var crtPem = GetPem("CERTIFICATE", certificateExport);
_log.Information("Saving certificate to {crtDerFile}", _certificatePath);
File.WriteAllBytes(crtDerFile, certificateExport);
File.WriteAllText(crtPemFile, crtPem);
// Get issuer certificate and save in DER and PEM formats
var chain = new X509Chain();
chain.Build(certificate);
X509Certificate2 issuerCertificate = chain.ChainElements[1].Certificate;
var issuerCertificateExport = issuerCertificate.Export(X509ContentType.Cert);
var issuerPem = GetPem("CERTIFICATE", issuerCertificateExport);
File.WriteAllBytes(GetPath(renewal, "-crt.der", "ca-"), issuerCertificateExport);
File.WriteAllText(GetPath(renewal, "-crt.pem", "ca-"), issuerPem);
// Generate combined files
File.WriteAllText(GetPath(renewal, "-chain.pem", "ca-"), crtPem + issuerPem);
// Build pfx archive
var pfx = new bc.Pkcs.Pkcs12Store();
var bcCertificate = ParsePem <bc.X509.X509Certificate>(crtPem);
var bcCertificateEntry = new bc.Pkcs.X509CertificateEntry(bcCertificate);
var bcCertificateAlias = bcCertificate.SubjectDN.ToString();
var bcPrivateKeyEntry = new bc.Pkcs.AsymmetricKeyEntry(csrPlugin.GeneratePrivateKey());
pfx.SetCertificateEntry(bcCertificateAlias, bcCertificateEntry);
pfx.SetKeyEntry(bcCertificateAlias, bcPrivateKeyEntry, new[] { bcCertificateEntry });
var bcIssuer = ParsePem <bc.X509.X509Certificate>(issuerPem);
var bcIssuerEntry = new bc.Pkcs.X509CertificateEntry(bcIssuer);
var bcIssuerAlias = bcIssuer.SubjectDN.ToString();
pfx.SetCertificateEntry(bcIssuerAlias, bcIssuerEntry);
var pfxStream = new MemoryStream();
pfx.Save(pfxStream, null, new bc.Security.SecureRandom());
pfxStream.Position = 0;
using (var pfxStreamReader = new BinaryReader(pfxStream))
{
var tempPfx = new X509Certificate2(
pfxStreamReader.ReadBytes((int)pfxStream.Length),
(string)null,
X509KeyStorageFlags.MachineKeySet |
X509KeyStorageFlags.PersistKeySet |
X509KeyStorageFlags.Exportable);
if (csrPlugin.CanConvert())
{
try
{
var converted = csrPlugin.Convert(tempPfx.PrivateKey);
if (converted != null)
{
tempPfx.PrivateKey = converted;
}
}
catch
{
_log.Warning("Private key conversion error.");
}
}
tempPfx.FriendlyName = FriendlyName(renewal);
File.WriteAllBytes(pfxFileInfo.FullName, tempPfx.Export(X509ContentType.Pfx, renewal.PfxPassword));
pfxFileInfo.Refresh();
}
// Recreate X509Certificate2 with correct flags for Store/Install
return(new CertificateInfo()
{
Certificate = ReadForUse(pfxFileInfo, renewal.PfxPassword),
PfxFile = pfxFileInfo
});
}
