Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / Tools / WSATConfig / Configuration / CertificateManager.cs / 1305376 / CertificateManager.cs
//------------------------------------------------------------------------------ // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------------------------- namespace Microsoft.Tools.ServiceModel.WsatConfig { using Microsoft.Win32; using System; using System.Collections.Generic; using System.Text; using System.Runtime.InteropServices; using System.Security; using System.Security.Permissions; using System.Security.Cryptography.X509Certificates; using System.Security.Cryptography; static class CertificateManager { static string certificateStore = @"Software\Microsoft\SystemCertificates\My"; // Throw if cannot open a valid store handle [SecurityPermission(SecurityAction.LinkDemand, UnmanagedCode = true)] internal static SafeCertificateStore GetCertificateStorePointer(string machineName) { SafeCertificateStore storeHandle; RegistryExceptionHelper registryExceptionHelper = new RegistryExceptionHelper(machineName, RegistryHive.LocalMachine, certificateStore); if (Utilities.IsLocalMachineName(machineName)) { SafeRegistryKey hive = new SafeRegistryKey(new IntPtr((int)Microsoft.Win32.RegistryHive.LocalMachine), false); SafeRegistryKey regKey = null; try { int ret = SafeNativeMethods.RegOpenKeyEx( hive, certificateStore, 0, SafeNativeMethods.KEY_READ, out regKey); if (ret != SafeNativeMethods.ERROR_SUCCESS) { throw registryExceptionHelper.CreateRegistryAccessException(ret); } storeHandle = SafeNativeMethods.CertOpenStore_ptr( SafeNativeMethods.CERT_STORE_PROV_REG, 0, 0, SafeNativeMethods.CERT_STORE_OPEN_EXISTING_FLAG | SafeNativeMethods.CERT_STORE_READONLY_FLAG, regKey); if (storeHandle.IsInvalid) { throw new WsatAdminException(WsatAdminErrorCode.CERT_STORE_ACCESS, SR.GetString(SR.ErrorAccessCertStore, Marshal.GetLastWin32Error())); } return storeHandle; } finally { if (regKey != null) { regKey.Close(); } hive.Close(); } } #if WSAT_UI else { SafeRegistryKey remoteBase = null; SafeRegistryKey finalKey = null; try { int ret = SafeNativeMethods.RegConnectRegistry( machineName, new SafeRegistryKey(new IntPtr((int)Microsoft.Win32.RegistryHive.LocalMachine), false), out remoteBase); if (ret != SafeNativeMethods.ERROR_SUCCESS) { throw registryExceptionHelper.CreateRegistryAccessException(ret); } ret = SafeNativeMethods.RegOpenKeyEx( remoteBase, certificateStore, 0, SafeNativeMethods.KEY_READ, out finalKey); if (ret != SafeNativeMethods.ERROR_SUCCESS) { throw registryExceptionHelper.CreateRegistryAccessException(ret); } storeHandle = SafeNativeMethods.CertOpenStore_ptr( SafeNativeMethods.CERT_STORE_PROV_REG, 0, 0, SafeNativeMethods.CERT_REGISTRY_STORE_REMOTE_FLAG | SafeNativeMethods.CERT_STORE_READONLY_FLAG | SafeNativeMethods.CERT_STORE_OPEN_EXISTING_FLAG, finalKey); if(storeHandle.IsInvalid) { throw new WsatAdminException(WsatAdminErrorCode.CERT_STORE_ACCESS, SR.GetString(SR.ErrorAccessCertStore, Marshal.GetLastWin32Error())); } return storeHandle; } finally { if (remoteBase != null) { remoteBase.Close(); } if (finalKey != null) { finalKey.Close(); } } } #else else { throw new WsatAdminException(WsatAdminErrorCode.CERT_STORE_ACCESS, SR.GetString(SR.ErrorAccessCertStore, 0)); } #endif } #if WSAT_CMDLINE // Input: "Issuer\SubjectName". Issuer and SubjectName can be wildcard character '*' // This one is not required to support remote machine operation so we could rely on the NDP certificate API [SecurityPermission(SecurityAction.LinkDemand, UnmanagedCode = true)] internal static X509Certificate2 GetCertificateFromIssuerAndSubjectName(string constraint) { if (string.IsNullOrEmpty(constraint) || constraint.Length < 3) { return null; } int separatorIndex = constraint.IndexOf('\\'); if(separatorIndex <= 0) // issuer can't be empty but can be '*' { return null; } string issuer, subjectName; issuer = constraint.Substring(0, separatorIndex); subjectName = constraint.Substring(separatorIndex+1, constraint.Length-separatorIndex-1); if (Utilities.SafeCompare(subjectName, "{EMPTY}")) { subjectName = string.Empty; } X509Store store = null; try { store = new X509Store(StoreName.My, StoreLocation.LocalMachine); store.Open(OpenFlags.ReadOnly); X509Certificate2Collection certs = store.Certificates; if (certs == null || certs.Count == 0) { return null; } if (!Utilities.SafeCompare(issuer, "*")) { certs = certs.Find(X509FindType.FindByIssuerDistinguishedName, issuer, false); } if (certs.Count > 0 && !Utilities.SafeCompare(subjectName, "*")) { certs = certs.Find(X509FindType.FindBySubjectDistinguishedName, subjectName, false); } if (certs.Count == 1) { return certs[0]; } } catch (ArgumentException) { // does nothing } catch (SecurityException) { // does nothing } catch (CryptographicException) { // does nothing } finally { if (store != null) { store.Close(); } } return null; } #endif [SecurityPermission(SecurityAction.LinkDemand, UnmanagedCode = true)] internal static X509Certificate2 GetCertificateFromThumbprint(string thumbprint, string machineName) { if (String.IsNullOrEmpty(thumbprint)) { return null; } X509Certificate2 cert = null; SafeCertificateStore storeHandle = CertificateManager.GetCertificateStorePointer(machineName); SafeCertificateContext prev = new SafeCertificateContext(); SafeCertificateContext current = new SafeCertificateContext(); bool foundThumbprint = false; do { // the CertFindCertificateInStore function frees the SafeHandleCertificateContext // referenced by non-null values of "prev" #pragma warning suppress 56523 current = SafeNativeMethods.CertFindCertificateInStore( storeHandle, SafeNativeMethods.X509_ASN_ENCODING, 0, SafeNativeMethods.CERT_FIND_ANY, IntPtr.Zero, prev); prev = current; if (!current.IsInvalid) { cert = current.GetNewX509Certificate(); if (Utilities.SafeCompare(cert.Thumbprint, thumbprint)) { foundThumbprint = true; } } } while (!current.IsInvalid && !foundThumbprint); storeHandle.Close(); prev.Close(); if (!current.IsInvalid) { current.Close(); return cert; } else { return null; } } #if WSAT_CMDLINE internal static X509Certificate2 GetMachineIdentityCertificate() { X509Store store = null; try { store = new X509Store(StoreName.My, StoreLocation.LocalMachine); store.Open(OpenFlags.ReadOnly); string hostName = System.Net.Dns.GetHostEntry(string.Empty).HostName; X509Certificate2 result = null; int count = 0; // The best way to find the Issued-to-machine certificate is to walk through each one and compare the DnsName foreach (X509Certificate2 cert in store.Certificates) { if (Utilities.SafeCompare(cert.GetNameInfo(X509NameType.DnsName, false), hostName)) { try { WsatConfiguration.ValidateIdentityCertificateThrow(cert, false); if (++count > 1) { break; } result = cert; } catch(WsatAdminException) { // Explicitly ignore } } } // We only use the cert if we found one and only one return (count == 1) ? result : null; } catch (ArgumentException) { return null; } catch (SecurityException) { return null; } catch (CryptographicException) { return null; } finally { if (store != null) { store.Close(); } } } #endif } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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