Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / HttpClientCertificate.cs / 1 / HttpClientCertificate.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * Client Certificate * * Copyright (c) 2000 Microsoft Corporation */ namespace System.Web { using System.Collections; using System.Collections.Specialized; using System.Globalization; using System.Security.Permissions; using System.Web.Util; ////// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class HttpClientCertificate : NameValueCollection { ///////////////////////////////////////////////////////////////////////////// // Properties ///The HttpClientCertificate collection retrieves the certification fields /// (specified in the X.509 standard) from a request issued by the Web browser. ///If a Web browser uses the SSL3.0/PCT1 protocol (in other words, it uses a URL /// starting with https:// instead of http://) to connect to a server and the server /// requests certification, the browser sends the certification fields. ////// public String Cookie { get { return _Cookie;}} ///[To be supplied.] ////// A string containing the binary stream of the entire certificate content in ASN.1 format. /// public byte [] Certificate { get { return _Certificate;}} ////// public int Flags { get { return _Flags;}} ///A set of flags that provide additional client certificate information. ////// public int KeySize { get { return _KeySize;}} ///[To be supplied.] ////// public int SecretKeySize { get { return _SecretKeySize;}} ///[To be supplied.] ////// public String Issuer { get { return _Issuer;}} ///A string that contains a list of subfield values containing information about /// the issuer of the certificate. ////// public String ServerIssuer { get { return _ServerIssuer;}} ///[To be supplied.] ////// public String Subject { get { return _Subject;}} ///A string that contains a list of subfield values. The subfield values contain /// information about the subject of the certificate. If this value is specified /// without a ///, the ClientCertificate collection returns a /// comma-separated list of subfields. For example, C=US, O=Msft, and so on. /// public String ServerSubject { get { return _ServerSubject;}} ///[To be supplied.] ////// public String SerialNumber { get { return _SerialNumber;}} ///A string that contains the certification serial number as an ASCII /// representation of hexadecimal bytes separated by hyphens (-). For example, /// 04-67-F3-02. ////// public DateTime ValidFrom { get { return _ValidFrom;}} ///A date specifying when the certificate becomes valid. This date varies with /// international settings. ////// public DateTime ValidUntil { get { return _ValidUntil;}} ///A date specifying when the certificate expires. The year value is displayed /// as a four-digit number. ////// public int CertEncoding { get { return _CertEncoding;}} ///[To be supplied.] ////// public byte [] PublicKey { get { return _PublicKey;}} ///[To be supplied.] ////// public byte [] BinaryIssuer { get { return _BinaryIssuer;}} ///[To be supplied.] ////// public bool IsPresent { get { return((_Flags & 0x1) == 1);}} ///[To be supplied.] ////// public bool IsValid { get { return((_Flags & 0x2) == 0);}} ///////////////////////////////////////////////////////////////////////////// // Ctor internal HttpClientCertificate(HttpContext context) { String flags = context.Request.ServerVariables["CERT_FLAGS"]; if (!String.IsNullOrEmpty(flags)) _Flags = Int32.Parse(flags, CultureInfo.InvariantCulture); else _Flags = 0; if (IsPresent == false) return; _Cookie = context.Request.ServerVariables["CERT_COOKIE"]; _Issuer = context.Request.ServerVariables["CERT_ISSUER"]; _ServerIssuer = context.Request.ServerVariables["CERT_SERVER_ISSUER"]; _Subject = context.Request.ServerVariables["CERT_SUBJECT"]; _ServerSubject = context.Request.ServerVariables["CERT_SERVER_SUBJECT"]; _SerialNumber = context.Request.ServerVariables["CERT_SERIALNUMBER"]; _Certificate = context.WorkerRequest.GetClientCertificate(); _ValidFrom = context.WorkerRequest.GetClientCertificateValidFrom(); _ValidUntil = context.WorkerRequest.GetClientCertificateValidUntil(); _BinaryIssuer = context.WorkerRequest.GetClientCertificateBinaryIssuer(); _PublicKey = context.WorkerRequest.GetClientCertificatePublicKey(); _CertEncoding = context.WorkerRequest.GetClientCertificateEncoding(); String keySize = context.Request.ServerVariables["CERT_KEYSIZE"]; String skeySize = context.Request.ServerVariables["CERT_SECRETKEYSIZE"]; if (!String.IsNullOrEmpty(keySize)) _KeySize = Int32.Parse(keySize, CultureInfo.InvariantCulture); if (!String.IsNullOrEmpty(skeySize)) _SecretKeySize = Int32.Parse(skeySize, CultureInfo.InvariantCulture); base.Add("ISSUER", null); base.Add("SUBJECTEMAIL", null); base.Add("BINARYISSUER", null); base.Add("FLAGS", null); base.Add("ISSUERO", null); base.Add("PUBLICKEY", null); base.Add("ISSUEROU", null); base.Add("ENCODING", null); base.Add("ISSUERCN", null); base.Add("SERIALNUMBER", null); base.Add("SUBJECT", null); base.Add("SUBJECTCN", null); base.Add("CERTIFICATE", null); base.Add("SUBJECTO", null); base.Add("SUBJECTOU", null); base.Add("VALIDUNTIL", null); base.Add("VALIDFROM", null); } ///[To be supplied.] ////// public override String Get(String field) { if (field == null) return String.Empty; field = field.ToLower(CultureInfo.InvariantCulture); switch (field) { case "cookie": return Cookie; case "flags": return Flags.ToString("G", CultureInfo.InvariantCulture); case "keysize": return KeySize.ToString("G", CultureInfo.InvariantCulture); case "secretkeysize": return SecretKeySize.ToString(CultureInfo.InvariantCulture); case "issuer": return Issuer; case "serverissuer": return ServerIssuer; case "subject": return Subject; case "serversubject": return ServerSubject; case "serialnumber": return SerialNumber; case "certificate": return System.Text.Encoding.Default.GetString(Certificate); case "binaryissuer": return System.Text.Encoding.Default.GetString(BinaryIssuer); case "publickey": return System.Text.Encoding.Default.GetString(PublicKey); case "encoding": return CertEncoding.ToString("G", CultureInfo.InvariantCulture); case "validfrom": return HttpUtility.FormatHttpDateTime(ValidFrom); case "validuntil": return HttpUtility.FormatHttpDateTime(ValidUntil); } if (StringUtil.StringStartsWith(field, "issuer")) return ExtractString(Issuer, field.Substring(6)); if (StringUtil.StringStartsWith(field, "subject")) { if (field.Equals("subjectemail")) return ExtractString(Subject, "e"); else return ExtractString(Subject, field.Substring(7)); } if (StringUtil.StringStartsWith(field, "serversubject")) return ExtractString(ServerSubject, field.Substring(13)); if (StringUtil.StringStartsWith(field, "serverissuer")) return ExtractString(ServerIssuer, field.Substring(12)); return String.Empty; } ///////////////////////////////////////////////////////////////////////////// // Private data private String _Cookie = String.Empty; private byte [] _Certificate = new byte[0]; private int _Flags; private int _KeySize; private int _SecretKeySize; private String _Issuer = String.Empty; private String _ServerIssuer = String.Empty; private String _Subject = String.Empty; private String _ServerSubject = String.Empty; private String _SerialNumber = String.Empty; private DateTime _ValidFrom = DateTime.Now; private DateTime _ValidUntil = DateTime.Now; private int _CertEncoding; private byte [] _PublicKey = new byte[0]; private byte [] _BinaryIssuer = new byte[0]; private String ExtractString(String strAll, String strSubject) { if (strAll == null || strSubject == null) return String.Empty; String strReturn = String.Empty; int iStart = 0; String strAllL = strAll.ToLower(CultureInfo.InvariantCulture); while (iStart < strAllL.Length) { iStart = strAllL.IndexOf(strSubject + "=", iStart, StringComparison.Ordinal); if (iStart < 0) return strReturn; if (strReturn.Length > 0) strReturn += ";"; iStart += strSubject.Length + 1; int iEnd = 0; if (strAll[iStart]=='"') { iStart++; iEnd = strAll.IndexOf('"' , iStart); } else iEnd = strAll.IndexOf(',' , iStart); if (iEnd < 0) iEnd = strAll.Length; strReturn += strAll.Substring(iStart, iEnd - iStart); iStart = iEnd + 1; } return strReturn; } } }Allows access to individual items in the collection by name. ///
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