Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / clr / src / ManagedLibraries / Security / System / Security / Cryptography / Xml / Utils.cs / 1 / Utils.cs
// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
//
// Utils.cs
//
// 04/01/2002
//
namespace System.Security.Cryptography.Xml
{
using System.Collections;
using System.Diagnostics;
using System.IO;
using System.Security.Cryptography.X509Certificates;
using System.Security.Permissions;
using System.Text;
using System.Xml;
[Serializable]
internal enum CertUsageType {
Verification = 0,
Decryption = 1
}
internal class MyXmlDocument : XmlDocument {
protected override XmlAttribute CreateDefaultAttribute(string prefix, string localName, string namespaceURI) {
return this.CreateAttribute(prefix, localName, namespaceURI);
}
}
internal class Utils {
private Utils () {}
private static bool HasNamespace (XmlElement element, string prefix, string value) {
if (IsCommittedNamespace(element, prefix, value)) return true;
if (element.Prefix == prefix && element.NamespaceURI == value) return true;
return false;
}
// A helper function that determines if a namespace node is a committed attribute
internal static bool IsCommittedNamespace (XmlElement element, string prefix, string value) {
if (element == null)
throw new ArgumentNullException("element");
string name = ((prefix.Length > 0) ? "xmlns:" + prefix : "xmlns");
if (element.HasAttribute(name) && element.GetAttribute(name) == value) return true;
return false;
}
internal static bool IsRedundantNamespace (XmlElement element, string prefix, string value) {
if (element == null)
throw new ArgumentNullException("element");
XmlNode ancestorNode = ((XmlNode)element).ParentNode;
while (ancestorNode != null) {
XmlElement ancestorElement = ancestorNode as XmlElement;
if (ancestorElement != null)
if (HasNamespace(ancestorElement, prefix, value)) return true;
ancestorNode = ancestorNode.ParentNode;
}
return false;
}
internal static string GetAttribute (XmlElement element, string localName, string namespaceURI) {
string s = (element.HasAttribute(localName) ? element.GetAttribute(localName) : null);
if (s == null && element.HasAttribute(localName, namespaceURI))
s = element.GetAttribute(localName, namespaceURI);
return s;
}
internal static bool HasAttribute (XmlElement element, string localName, string namespaceURI) {
return element.HasAttribute(localName) || element.HasAttribute(localName, namespaceURI);
}
internal static bool IsNamespaceNode (XmlNode n) {
return n.NodeType == XmlNodeType.Attribute && (n.Prefix.Equals("xmlns") || (n.Prefix.Length == 0 && n.LocalName.Equals("xmlns")));
}
internal static bool IsXmlNamespaceNode (XmlNode n) {
return n.NodeType == XmlNodeType.Attribute && n.Prefix.Equals("xml");
}
// We consider xml:space style attributes as default namespace nodes since they obey the same propagation rules
internal static bool IsDefaultNamespaceNode (XmlNode n) {
bool b1 = n.NodeType == XmlNodeType.Attribute && n.Prefix.Length == 0 && n.LocalName.Equals("xmlns");
bool b2 = IsXmlNamespaceNode(n);
return b1 || b2;
}
internal static bool IsEmptyDefaultNamespaceNode (XmlNode n) {
return IsDefaultNamespaceNode(n) && n.Value.Length == 0;
}
internal static string GetNamespacePrefix (XmlAttribute a) {
Debug.Assert(IsNamespaceNode(a) || IsXmlNamespaceNode(a));
return a.Prefix.Length == 0 ? string.Empty : a.LocalName;
}
internal static bool HasNamespacePrefix (XmlAttribute a, string nsPrefix) {
return GetNamespacePrefix(a).Equals(nsPrefix);
}
internal static bool IsNonRedundantNamespaceDecl (XmlAttribute a, XmlAttribute nearestAncestorWithSamePrefix) {
if (nearestAncestorWithSamePrefix == null)
return !IsEmptyDefaultNamespaceNode(a);
else
return !nearestAncestorWithSamePrefix.Value.Equals(a.Value);
}
internal static bool IsXmlPrefixDefinitionNode (XmlAttribute a) {
return false;
// return a.Prefix.Equals("xmlns") && a.LocalName.Equals("xml") && a.Value.Equals(NamespaceUrlForXmlPrefix);
}
internal static String DiscardWhiteSpaces (string inputBuffer) {
return DiscardWhiteSpaces(inputBuffer, 0, inputBuffer.Length);
}
internal static String DiscardWhiteSpaces (string inputBuffer, int inputOffset, int inputCount) {
int i, iCount = 0;
for (i=0; i 0) {
output.Write(bytes, 0, numBytes);
totalBytes += numBytes;
}
return totalBytes;
}
internal static Hashtable TokenizePrefixListString (string s) {
Hashtable set = new Hashtable();
if (s != null) {
string[] prefixes = s.Split(null);
foreach (string prefix in prefixes) {
if (prefix.Equals("#default")) {
set.Add(string.Empty, true);
} else if (prefix.Length > 0) {
set.Add(prefix, true);
}
}
}
return set;
}
internal static string EscapeWhitespaceData(string data) {
StringBuilder sb = new StringBuilder();
sb.Append(data);
Utils.SBReplaceCharWithString(sb, (char) 13,"
");
return sb.ToString();;
}
internal static string EscapeTextData(string data) {
StringBuilder sb = new StringBuilder();
sb.Append(data);
sb.Replace("&", "&");
sb.Replace("<", "<");
sb.Replace(">", ">");
SBReplaceCharWithString(sb, (char) 13, "
");
return sb.ToString();;
}
internal static string EscapeCData(string data) {
return EscapeTextData(data);
}
internal static string EscapeAttributeValue(string value) {
StringBuilder sb = new StringBuilder();
sb.Append(value);
sb.Replace("&", "&");
sb.Replace("<", "<");
sb.Replace("\"", """);
SBReplaceCharWithString(sb, (char) 9, " ");
SBReplaceCharWithString(sb, (char) 10, "
");
SBReplaceCharWithString(sb, (char) 13, "
");
return sb.ToString();
}
internal static XmlDocument GetOwnerDocument (XmlNodeList nodeList) {
foreach (XmlNode node in nodeList) {
if (node.OwnerDocument != null)
return node.OwnerDocument;
}
return null;
}
internal static void AddNamespaces (XmlElement elem, CanonicalXmlNodeList namespaces) {
if (namespaces != null) {
foreach (XmlNode attrib in namespaces) {
string name = ((attrib.Prefix.Length > 0) ? attrib.Prefix + ":" + attrib.LocalName : attrib.LocalName);
// Skip the attribute if one with the same qualified name already exists
if (elem.HasAttribute(name) || (name.Equals("xmlns") && elem.Prefix.Length == 0)) continue;
XmlAttribute nsattrib = (XmlAttribute) elem.OwnerDocument.CreateAttribute(name);
nsattrib.Value = attrib.Value;
elem.SetAttributeNode(nsattrib);
}
}
}
internal static void AddNamespaces (XmlElement elem, Hashtable namespaces) {
if (namespaces != null) {
foreach (string key in namespaces.Keys) {
if (elem.HasAttribute(key)) continue;
XmlAttribute nsattrib = (XmlAttribute) elem.OwnerDocument.CreateAttribute(key);
nsattrib.Value = namespaces[key] as string;
elem.SetAttributeNode(nsattrib);
}
}
}
// This method gets the attributes that should be propagated
internal static CanonicalXmlNodeList GetPropagatedAttributes (XmlElement elem) {
if (elem == null)
return null;
CanonicalXmlNodeList namespaces = new CanonicalXmlNodeList();
XmlNode ancestorNode = elem;
if (ancestorNode == null) return null;
bool bDefNamespaceToAdd = true;
while (ancestorNode != null) {
XmlElement ancestorElement = ancestorNode as XmlElement;
if (ancestorElement == null) {
ancestorNode = ancestorNode.ParentNode;
continue;
}
if (!Utils.IsCommittedNamespace(ancestorElement, ancestorElement.Prefix, ancestorElement.NamespaceURI)) {
// Add the namespace attribute to the collection if needed
if (!Utils.IsRedundantNamespace(ancestorElement, ancestorElement.Prefix, ancestorElement.NamespaceURI)) {
string name = ((ancestorElement.Prefix.Length > 0) ? "xmlns:" + ancestorElement.Prefix : "xmlns");
XmlAttribute nsattrib = elem.OwnerDocument.CreateAttribute(name);
nsattrib.Value = ancestorElement.NamespaceURI;
namespaces.Add(nsattrib);
}
}
if (ancestorElement.HasAttributes) {
XmlAttributeCollection attribs = ancestorElement.Attributes;
foreach (XmlAttribute attrib in attribs) {
// Add a default namespace if necessary
if (bDefNamespaceToAdd && attrib.LocalName == "xmlns") {
XmlAttribute nsattrib = elem.OwnerDocument.CreateAttribute("xmlns");
nsattrib.Value = attrib.Value;
namespaces.Add(nsattrib);
bDefNamespaceToAdd = false;
continue;
}
// retain the declarations of type 'xml:*' as well
if (attrib.Prefix == "xmlns" || attrib.Prefix == "xml") {
namespaces.Add(attrib);
continue;
}
if (attrib.NamespaceURI.Length > 0) {
if (!Utils.IsCommittedNamespace(ancestorElement, attrib.Prefix, attrib.NamespaceURI)) {
// Add the namespace attribute to the collection if needed
if (!Utils.IsRedundantNamespace(ancestorElement, attrib.Prefix, attrib.NamespaceURI)) {
string name = ((attrib.Prefix.Length > 0) ? "xmlns:" + attrib.Prefix : "xmlns");
XmlAttribute nsattrib = elem.OwnerDocument.CreateAttribute(name);
nsattrib.Value = attrib.NamespaceURI;
namespaces.Add(nsattrib);
}
}
}
}
}
ancestorNode = ancestorNode.ParentNode;
}
return namespaces;
}
// output of this routine is always big endian
internal static byte[] ConvertIntToByteArray (int dwInput) {
byte[] rgbTemp = new byte[8]; // int can never be greater than Int64
int t1; // t1 is remaining value to account for
int t2; // t2 is t1 % 256
int i = 0;
if (dwInput == 0) return new byte[1];
t1 = dwInput;
while (t1 > 0) {
t2 = t1 % 256;
rgbTemp[i] = (byte) t2;
t1 = (t1 - t2)/256;
i++;
}
// Now, copy only the non-zero part of rgbTemp and reverse
byte[] rgbOutput = new byte[i];
// copy and reverse in one pass
for (int j = 0; j < i; j++) {
rgbOutput[j] = rgbTemp[i-j-1];
}
return rgbOutput;
}
internal static int GetHexArraySize (byte[] hex) {
int index = hex.Length;
while (index-- > 0) {
if (hex[index] != 0)
break;
}
return index + 1;
}
internal static X509Certificate2Collection BuildBagOfCerts (KeyInfoX509Data keyInfoX509Data, CertUsageType certUsageType) {
X509Certificate2Collection collection = new X509Certificate2Collection();
ArrayList decryptionIssuerSerials = (certUsageType == CertUsageType.Decryption ? new ArrayList() : null);
if (keyInfoX509Data.Certificates != null) {
foreach (X509Certificate2 certificate in keyInfoX509Data.Certificates) {
switch (certUsageType) {
case CertUsageType.Verification:
collection.Add(certificate);
break;
case CertUsageType.Decryption:
decryptionIssuerSerials.Add(new X509IssuerSerial(certificate.IssuerName.Name, certificate.SerialNumber));
break;
}
}
}
if (keyInfoX509Data.SubjectNames == null && keyInfoX509Data.IssuerSerials == null &&
keyInfoX509Data.SubjectKeyIds == null && decryptionIssuerSerials == null)
return collection;
// Open LocalMachine and CurrentUser "Other People"/"My" stores.
// Assert OpenStore since we are not giving back any certificates to the user.
StorePermission sp = new StorePermission(StorePermissionFlags.OpenStore);
sp.Assert();
X509Store[] stores = new X509Store[2];
string storeName = (certUsageType == CertUsageType.Verification ? "AddressBook" : "My");
stores[0] = new X509Store(storeName, StoreLocation.CurrentUser);
stores[1] = new X509Store(storeName, StoreLocation.LocalMachine);
for (int index=0; index < stores.Length; index++) {
if (stores[index] != null) {
X509Certificate2Collection filters = null;
// We don't care if we can't open the store.
try {
stores[index].Open(OpenFlags.ReadOnly | OpenFlags.OpenExistingOnly);
filters = stores[index].Certificates;
stores[index].Close();
if (keyInfoX509Data.SubjectNames != null) {
foreach (string subjectName in keyInfoX509Data.SubjectNames) {
filters = filters.Find(X509FindType.FindBySubjectDistinguishedName, subjectName, false);
}
}
if (keyInfoX509Data.IssuerSerials != null) {
foreach (X509IssuerSerial issuerSerial in keyInfoX509Data.IssuerSerials) {
filters = filters.Find(X509FindType.FindByIssuerDistinguishedName, issuerSerial.IssuerName, false);
filters = filters.Find(X509FindType.FindBySerialNumber, issuerSerial.SerialNumber, false);
}
}
if (keyInfoX509Data.SubjectKeyIds != null) {
foreach (byte[] ski in keyInfoX509Data.SubjectKeyIds) {
string hex = X509Utils.EncodeHexString(ski);
filters = filters.Find(X509FindType.FindBySubjectKeyIdentifier, hex, false);
}
}
if (decryptionIssuerSerials != null) {
foreach (X509IssuerSerial issuerSerial in decryptionIssuerSerials) {
filters = filters.Find(X509FindType.FindByIssuerDistinguishedName, issuerSerial.IssuerName, false);
filters = filters.Find(X509FindType.FindBySerialNumber, issuerSerial.SerialNumber, false);
}
}
}
catch (CryptographicException) {}
if (filters != null)
collection.AddRange(filters);
}
}
return collection;
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
//
// Utils.cs
//
// 04/01/2002
//
namespace System.Security.Cryptography.Xml
{
using System.Collections;
using System.Diagnostics;
using System.IO;
using System.Security.Cryptography.X509Certificates;
using System.Security.Permissions;
using System.Text;
using System.Xml;
[Serializable]
internal enum CertUsageType {
Verification = 0,
Decryption = 1
}
internal class MyXmlDocument : XmlDocument {
protected override XmlAttribute CreateDefaultAttribute(string prefix, string localName, string namespaceURI) {
return this.CreateAttribute(prefix, localName, namespaceURI);
}
}
internal class Utils {
private Utils () {}
private static bool HasNamespace (XmlElement element, string prefix, string value) {
if (IsCommittedNamespace(element, prefix, value)) return true;
if (element.Prefix == prefix && element.NamespaceURI == value) return true;
return false;
}
// A helper function that determines if a namespace node is a committed attribute
internal static bool IsCommittedNamespace (XmlElement element, string prefix, string value) {
if (element == null)
throw new ArgumentNullException("element");
string name = ((prefix.Length > 0) ? "xmlns:" + prefix : "xmlns");
if (element.HasAttribute(name) && element.GetAttribute(name) == value) return true;
return false;
}
internal static bool IsRedundantNamespace (XmlElement element, string prefix, string value) {
if (element == null)
throw new ArgumentNullException("element");
XmlNode ancestorNode = ((XmlNode)element).ParentNode;
while (ancestorNode != null) {
XmlElement ancestorElement = ancestorNode as XmlElement;
if (ancestorElement != null)
if (HasNamespace(ancestorElement, prefix, value)) return true;
ancestorNode = ancestorNode.ParentNode;
}
return false;
}
internal static string GetAttribute (XmlElement element, string localName, string namespaceURI) {
string s = (element.HasAttribute(localName) ? element.GetAttribute(localName) : null);
if (s == null && element.HasAttribute(localName, namespaceURI))
s = element.GetAttribute(localName, namespaceURI);
return s;
}
internal static bool HasAttribute (XmlElement element, string localName, string namespaceURI) {
return element.HasAttribute(localName) || element.HasAttribute(localName, namespaceURI);
}
internal static bool IsNamespaceNode (XmlNode n) {
return n.NodeType == XmlNodeType.Attribute && (n.Prefix.Equals("xmlns") || (n.Prefix.Length == 0 && n.LocalName.Equals("xmlns")));
}
internal static bool IsXmlNamespaceNode (XmlNode n) {
return n.NodeType == XmlNodeType.Attribute && n.Prefix.Equals("xml");
}
// We consider xml:space style attributes as default namespace nodes since they obey the same propagation rules
internal static bool IsDefaultNamespaceNode (XmlNode n) {
bool b1 = n.NodeType == XmlNodeType.Attribute && n.Prefix.Length == 0 && n.LocalName.Equals("xmlns");
bool b2 = IsXmlNamespaceNode(n);
return b1 || b2;
}
internal static bool IsEmptyDefaultNamespaceNode (XmlNode n) {
return IsDefaultNamespaceNode(n) && n.Value.Length == 0;
}
internal static string GetNamespacePrefix (XmlAttribute a) {
Debug.Assert(IsNamespaceNode(a) || IsXmlNamespaceNode(a));
return a.Prefix.Length == 0 ? string.Empty : a.LocalName;
}
internal static bool HasNamespacePrefix (XmlAttribute a, string nsPrefix) {
return GetNamespacePrefix(a).Equals(nsPrefix);
}
internal static bool IsNonRedundantNamespaceDecl (XmlAttribute a, XmlAttribute nearestAncestorWithSamePrefix) {
if (nearestAncestorWithSamePrefix == null)
return !IsEmptyDefaultNamespaceNode(a);
else
return !nearestAncestorWithSamePrefix.Value.Equals(a.Value);
}
internal static bool IsXmlPrefixDefinitionNode (XmlAttribute a) {
return false;
// return a.Prefix.Equals("xmlns") && a.LocalName.Equals("xml") && a.Value.Equals(NamespaceUrlForXmlPrefix);
}
internal static String DiscardWhiteSpaces (string inputBuffer) {
return DiscardWhiteSpaces(inputBuffer, 0, inputBuffer.Length);
}
internal static String DiscardWhiteSpaces (string inputBuffer, int inputOffset, int inputCount) {
int i, iCount = 0;
for (i=0; i 0) {
output.Write(bytes, 0, numBytes);
totalBytes += numBytes;
}
return totalBytes;
}
internal static Hashtable TokenizePrefixListString (string s) {
Hashtable set = new Hashtable();
if (s != null) {
string[] prefixes = s.Split(null);
foreach (string prefix in prefixes) {
if (prefix.Equals("#default")) {
set.Add(string.Empty, true);
} else if (prefix.Length > 0) {
set.Add(prefix, true);
}
}
}
return set;
}
internal static string EscapeWhitespaceData(string data) {
StringBuilder sb = new StringBuilder();
sb.Append(data);
Utils.SBReplaceCharWithString(sb, (char) 13,"
");
return sb.ToString();;
}
internal static string EscapeTextData(string data) {
StringBuilder sb = new StringBuilder();
sb.Append(data);
sb.Replace("&", "&");
sb.Replace("<", "<");
sb.Replace(">", ">");
SBReplaceCharWithString(sb, (char) 13, "
");
return sb.ToString();;
}
internal static string EscapeCData(string data) {
return EscapeTextData(data);
}
internal static string EscapeAttributeValue(string value) {
StringBuilder sb = new StringBuilder();
sb.Append(value);
sb.Replace("&", "&");
sb.Replace("<", "<");
sb.Replace("\"", """);
SBReplaceCharWithString(sb, (char) 9, " ");
SBReplaceCharWithString(sb, (char) 10, "
");
SBReplaceCharWithString(sb, (char) 13, "
");
return sb.ToString();
}
internal static XmlDocument GetOwnerDocument (XmlNodeList nodeList) {
foreach (XmlNode node in nodeList) {
if (node.OwnerDocument != null)
return node.OwnerDocument;
}
return null;
}
internal static void AddNamespaces (XmlElement elem, CanonicalXmlNodeList namespaces) {
if (namespaces != null) {
foreach (XmlNode attrib in namespaces) {
string name = ((attrib.Prefix.Length > 0) ? attrib.Prefix + ":" + attrib.LocalName : attrib.LocalName);
// Skip the attribute if one with the same qualified name already exists
if (elem.HasAttribute(name) || (name.Equals("xmlns") && elem.Prefix.Length == 0)) continue;
XmlAttribute nsattrib = (XmlAttribute) elem.OwnerDocument.CreateAttribute(name);
nsattrib.Value = attrib.Value;
elem.SetAttributeNode(nsattrib);
}
}
}
internal static void AddNamespaces (XmlElement elem, Hashtable namespaces) {
if (namespaces != null) {
foreach (string key in namespaces.Keys) {
if (elem.HasAttribute(key)) continue;
XmlAttribute nsattrib = (XmlAttribute) elem.OwnerDocument.CreateAttribute(key);
nsattrib.Value = namespaces[key] as string;
elem.SetAttributeNode(nsattrib);
}
}
}
// This method gets the attributes that should be propagated
internal static CanonicalXmlNodeList GetPropagatedAttributes (XmlElement elem) {
if (elem == null)
return null;
CanonicalXmlNodeList namespaces = new CanonicalXmlNodeList();
XmlNode ancestorNode = elem;
if (ancestorNode == null) return null;
bool bDefNamespaceToAdd = true;
while (ancestorNode != null) {
XmlElement ancestorElement = ancestorNode as XmlElement;
if (ancestorElement == null) {
ancestorNode = ancestorNode.ParentNode;
continue;
}
if (!Utils.IsCommittedNamespace(ancestorElement, ancestorElement.Prefix, ancestorElement.NamespaceURI)) {
// Add the namespace attribute to the collection if needed
if (!Utils.IsRedundantNamespace(ancestorElement, ancestorElement.Prefix, ancestorElement.NamespaceURI)) {
string name = ((ancestorElement.Prefix.Length > 0) ? "xmlns:" + ancestorElement.Prefix : "xmlns");
XmlAttribute nsattrib = elem.OwnerDocument.CreateAttribute(name);
nsattrib.Value = ancestorElement.NamespaceURI;
namespaces.Add(nsattrib);
}
}
if (ancestorElement.HasAttributes) {
XmlAttributeCollection attribs = ancestorElement.Attributes;
foreach (XmlAttribute attrib in attribs) {
// Add a default namespace if necessary
if (bDefNamespaceToAdd && attrib.LocalName == "xmlns") {
XmlAttribute nsattrib = elem.OwnerDocument.CreateAttribute("xmlns");
nsattrib.Value = attrib.Value;
namespaces.Add(nsattrib);
bDefNamespaceToAdd = false;
continue;
}
// retain the declarations of type 'xml:*' as well
if (attrib.Prefix == "xmlns" || attrib.Prefix == "xml") {
namespaces.Add(attrib);
continue;
}
if (attrib.NamespaceURI.Length > 0) {
if (!Utils.IsCommittedNamespace(ancestorElement, attrib.Prefix, attrib.NamespaceURI)) {
// Add the namespace attribute to the collection if needed
if (!Utils.IsRedundantNamespace(ancestorElement, attrib.Prefix, attrib.NamespaceURI)) {
string name = ((attrib.Prefix.Length > 0) ? "xmlns:" + attrib.Prefix : "xmlns");
XmlAttribute nsattrib = elem.OwnerDocument.CreateAttribute(name);
nsattrib.Value = attrib.NamespaceURI;
namespaces.Add(nsattrib);
}
}
}
}
}
ancestorNode = ancestorNode.ParentNode;
}
return namespaces;
}
// output of this routine is always big endian
internal static byte[] ConvertIntToByteArray (int dwInput) {
byte[] rgbTemp = new byte[8]; // int can never be greater than Int64
int t1; // t1 is remaining value to account for
int t2; // t2 is t1 % 256
int i = 0;
if (dwInput == 0) return new byte[1];
t1 = dwInput;
while (t1 > 0) {
t2 = t1 % 256;
rgbTemp[i] = (byte) t2;
t1 = (t1 - t2)/256;
i++;
}
// Now, copy only the non-zero part of rgbTemp and reverse
byte[] rgbOutput = new byte[i];
// copy and reverse in one pass
for (int j = 0; j < i; j++) {
rgbOutput[j] = rgbTemp[i-j-1];
}
return rgbOutput;
}
internal static int GetHexArraySize (byte[] hex) {
int index = hex.Length;
while (index-- > 0) {
if (hex[index] != 0)
break;
}
return index + 1;
}
internal static X509Certificate2Collection BuildBagOfCerts (KeyInfoX509Data keyInfoX509Data, CertUsageType certUsageType) {
X509Certificate2Collection collection = new X509Certificate2Collection();
ArrayList decryptionIssuerSerials = (certUsageType == CertUsageType.Decryption ? new ArrayList() : null);
if (keyInfoX509Data.Certificates != null) {
foreach (X509Certificate2 certificate in keyInfoX509Data.Certificates) {
switch (certUsageType) {
case CertUsageType.Verification:
collection.Add(certificate);
break;
case CertUsageType.Decryption:
decryptionIssuerSerials.Add(new X509IssuerSerial(certificate.IssuerName.Name, certificate.SerialNumber));
break;
}
}
}
if (keyInfoX509Data.SubjectNames == null && keyInfoX509Data.IssuerSerials == null &&
keyInfoX509Data.SubjectKeyIds == null && decryptionIssuerSerials == null)
return collection;
// Open LocalMachine and CurrentUser "Other People"/"My" stores.
// Assert OpenStore since we are not giving back any certificates to the user.
StorePermission sp = new StorePermission(StorePermissionFlags.OpenStore);
sp.Assert();
X509Store[] stores = new X509Store[2];
string storeName = (certUsageType == CertUsageType.Verification ? "AddressBook" : "My");
stores[0] = new X509Store(storeName, StoreLocation.CurrentUser);
stores[1] = new X509Store(storeName, StoreLocation.LocalMachine);
for (int index=0; index < stores.Length; index++) {
if (stores[index] != null) {
X509Certificate2Collection filters = null;
// We don't care if we can't open the store.
try {
stores[index].Open(OpenFlags.ReadOnly | OpenFlags.OpenExistingOnly);
filters = stores[index].Certificates;
stores[index].Close();
if (keyInfoX509Data.SubjectNames != null) {
foreach (string subjectName in keyInfoX509Data.SubjectNames) {
filters = filters.Find(X509FindType.FindBySubjectDistinguishedName, subjectName, false);
}
}
if (keyInfoX509Data.IssuerSerials != null) {
foreach (X509IssuerSerial issuerSerial in keyInfoX509Data.IssuerSerials) {
filters = filters.Find(X509FindType.FindByIssuerDistinguishedName, issuerSerial.IssuerName, false);
filters = filters.Find(X509FindType.FindBySerialNumber, issuerSerial.SerialNumber, false);
}
}
if (keyInfoX509Data.SubjectKeyIds != null) {
foreach (byte[] ski in keyInfoX509Data.SubjectKeyIds) {
string hex = X509Utils.EncodeHexString(ski);
filters = filters.Find(X509FindType.FindBySubjectKeyIdentifier, hex, false);
}
}
if (decryptionIssuerSerials != null) {
foreach (X509IssuerSerial issuerSerial in decryptionIssuerSerials) {
filters = filters.Find(X509FindType.FindByIssuerDistinguishedName, issuerSerial.IssuerName, false);
filters = filters.Find(X509FindType.FindBySerialNumber, issuerSerial.SerialNumber, false);
}
}
}
catch (CryptographicException) {}
if (filters != null)
collection.AddRange(filters);
}
}
return collection;
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ResourceManager.cs
- SafeFileMappingHandle.cs
- JoinElimination.cs
- ClientTargetSection.cs
- SystemIcmpV6Statistics.cs
- Subtree.cs
- CommandConverter.cs
- _ListenerRequestStream.cs
- TraceSource.cs
- ToggleButton.cs
- PagedDataSource.cs
- JobPageOrder.cs
- HttpBrowserCapabilitiesWrapper.cs
- safesecurityhelperavalon.cs
- RadioButton.cs
- DBCommand.cs
- AssociationType.cs
- Wizard.cs
- _RequestCacheProtocol.cs
- Inflater.cs
- LinqDataSource.cs
- PipeStream.cs
- MarkupCompilePass1.cs
- AssemblySettingAttributes.cs
- RelationshipEndMember.cs
- TimeSpanValidator.cs
- ResourcesBuildProvider.cs
- CorrelationTokenTypeConvertor.cs
- RectAnimation.cs
- IdnMapping.cs
- LocalFileSettingsProvider.cs
- Monitor.cs
- TransformCollection.cs
- UpdateManifestForBrowserApplication.cs
- RequestQueryParser.cs
- TextTreeExtractElementUndoUnit.cs
- ModelPropertyCollectionImpl.cs
- PolicyStatement.cs
- DocumentGridContextMenu.cs
- unsafeIndexingFilterStream.cs
- QuaternionAnimation.cs
- DefaultTraceListener.cs
- DbTypeMap.cs
- AppDomainAttributes.cs
- Material.cs
- CommonProperties.cs
- EventTrigger.cs
- Attribute.cs
- WindowsGraphicsCacheManager.cs
- ConversionContext.cs
- DelayedRegex.cs
- ActiveXHost.cs
- XmlSchemaAll.cs
- FrameworkName.cs
- EntityObject.cs
- DoubleLinkListEnumerator.cs
- MessageQueueInstaller.cs
- DbXmlEnabledProviderManifest.cs
- Preprocessor.cs
- WebPartCollection.cs
- BaseConfigurationRecord.cs
- DataConnectionHelper.cs
- ListViewItemMouseHoverEvent.cs
- FullTextBreakpoint.cs
- CompositeFontFamily.cs
- UrlParameterReader.cs
- DetailsViewRowCollection.cs
- Rights.cs
- ObjectResult.cs
- DataStorage.cs
- CapabilitiesPattern.cs
- ColumnTypeConverter.cs
- DataRelation.cs
- BufferBuilder.cs
- ToolBarButton.cs
- ObjectContext.cs
- XmlIgnoreAttribute.cs
- XmlSchemaIdentityConstraint.cs
- VirtualDirectoryMapping.cs
- ToolboxItemWrapper.cs
- WindowsServiceCredential.cs
- Resources.Designer.cs
- FastPropertyAccessor.cs
- ResourceCategoryAttribute.cs
- Baml2006ReaderFrame.cs
- CachedTypeface.cs
- XmlDocumentType.cs
- RequestCachePolicyConverter.cs
- StylusPoint.cs
- DataGridViewComboBoxColumn.cs
- FontResourceCache.cs
- EncoderFallback.cs
- _ConnectStream.cs
- ReadOnlyCollectionBase.cs
- shaper.cs
- RuntimeConfig.cs
- AsyncCompletedEventArgs.cs
- ToolStripPanelRenderEventArgs.cs
- TabItem.cs
- IResourceProvider.cs