Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / BCL / System / Security / Permissions / SiteIdentityPermission.cs / 1305376 / SiteIdentityPermission.cs
// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
// SiteIdentityPermission.cs
//
// [....]
//
namespace System.Security.Permissions
{
using System;
#if FEATURE_CAS_POLICY
using SecurityElement = System.Security.SecurityElement;
#endif // FEATURE_CAS_POLICY
using SiteString = System.Security.Util.SiteString;
using System.Text;
using System.Collections;
using System.Collections.Generic;
using System.Globalization;
using System.Runtime.Serialization;
[System.Runtime.InteropServices.ComVisible(true)]
[Serializable]
sealed public class SiteIdentityPermission : CodeAccessPermission, IBuiltInPermission
{
//------------------------------------------------------
//
// PRIVATE STATE DATA
//
//-----------------------------------------------------
[OptionalField(VersionAdded = 2)]
private bool m_unrestricted;
[OptionalField(VersionAdded = 2)]
private SiteString[] m_sites;
#if FEATURE_REMOTING
// This field will be populated only for non X-AD scenarios where we create a XML-ised string of the Permission
[OptionalField(VersionAdded = 2)]
private String m_serializedPermission;
// This field is legacy info from v1.x and is never used in v2.0 and beyond: purely for serialization purposes
private SiteString m_site;
[OnDeserialized]
private void OnDeserialized(StreamingContext ctx)
{
// v2.0 and beyond XML case
if (m_serializedPermission != null)
{
FromXml(SecurityElement.FromString(m_serializedPermission));
m_serializedPermission = null;
}
else if (m_site != null) //v1.x case where we read the m_site value
{
m_unrestricted = false;
m_sites = new SiteString[1];
m_sites[0] = m_site;
m_site = null;
}
}
[OnSerializing]
private void OnSerializing(StreamingContext ctx)
{
if ((ctx.State & ~(StreamingContextStates.Clone|StreamingContextStates.CrossAppDomain)) != 0)
{
m_serializedPermission = ToXml().ToString(); //for the v2 and beyond case
if (m_sites != null && m_sites.Length == 1) // for the v1.x case
m_site = m_sites[0];
}
}
[OnSerialized]
private void OnSerialized(StreamingContext ctx)
{
if ((ctx.State & ~(StreamingContextStates.Clone|StreamingContextStates.CrossAppDomain)) != 0)
{
m_serializedPermission = null;
m_site = null;
}
}
#endif // FEATURE_REMOTING
//-----------------------------------------------------
//
// PUBLIC CONSTRUCTORS
//
//-----------------------------------------------------
public SiteIdentityPermission(PermissionState state)
{
if (state == PermissionState.Unrestricted)
{
m_unrestricted = true;
}
else if (state == PermissionState.None)
{
m_unrestricted = false;
}
else
{
throw new ArgumentException(Environment.GetResourceString("Argument_InvalidPermissionState"));
}
}
public SiteIdentityPermission( String site )
{
Site = site;
}
//------------------------------------------------------
//
// PUBLIC ACCESSOR METHODS
//
//-----------------------------------------------------
public String Site
{
set
{
m_unrestricted = false;
m_sites = new SiteString[1];
m_sites[0] = new SiteString( value );
}
get
{
if(m_sites == null)
return "";
if(m_sites.Length == 1)
return m_sites[0].ToString();
throw new NotSupportedException(Environment.GetResourceString("NotSupported_AmbiguousIdentity"));
}
}
//------------------------------------------------------
//
// PRIVATE AND PROTECTED HELPERS FOR ACCESSORS AND CONSTRUCTORS
//
//------------------------------------------------------
//-----------------------------------------------------
//
// CODEACCESSPERMISSION IMPLEMENTATION
//
//------------------------------------------------------
//-----------------------------------------------------
//
// IPERMISSION IMPLEMENTATION
//
//-----------------------------------------------------
public override IPermission Copy()
{
SiteIdentityPermission perm = new SiteIdentityPermission( PermissionState.None );
perm.m_unrestricted = this.m_unrestricted;
if (this.m_sites != null)
{
perm.m_sites = new SiteString[this.m_sites.Length];
int n;
for(n = 0; n < this.m_sites.Length; n++)
perm.m_sites[n] = (SiteString)this.m_sites[n].Copy();
}
return perm;
}
public override bool IsSubsetOf(IPermission target)
{
if (target == null)
{
if(m_unrestricted)
return false;
if(m_sites == null)
return true;
if(m_sites.Length == 0)
return true;
return false;
}
SiteIdentityPermission that = target as SiteIdentityPermission;
if(that == null)
throw new ArgumentException(Environment.GetResourceString("Argument_WrongType", this.GetType().FullName));
if(that.m_unrestricted)
return true;
if(m_unrestricted)
return false;
if(this.m_sites != null)
{
foreach(SiteString ssThis in this.m_sites)
{
bool bOK = false;
if(that.m_sites != null)
{
foreach(SiteString ssThat in that.m_sites)
{
if(ssThis.IsSubsetOf(ssThat))
{
bOK = true;
break;
}
}
}
if(!bOK)
return false;
}
}
return true;
}
public override IPermission Intersect(IPermission target)
{
if (target == null)
return null;
SiteIdentityPermission that = target as SiteIdentityPermission;
if(that == null)
throw new ArgumentException(Environment.GetResourceString("Argument_WrongType", this.GetType().FullName));
if(this.m_unrestricted && that.m_unrestricted)
{
SiteIdentityPermission res = new SiteIdentityPermission(PermissionState.None);
res.m_unrestricted = true;
return res;
}
if(this.m_unrestricted)
return that.Copy();
if(that.m_unrestricted)
return this.Copy();
if(this.m_sites == null || that.m_sites == null || this.m_sites.Length == 0 || that.m_sites.Length == 0)
return null;
List alSites = new List();
foreach(SiteString ssThis in this.m_sites)
{
foreach(SiteString ssThat in that.m_sites)
{
SiteString ssInt = (SiteString)ssThis.Intersect(ssThat);
if(ssInt != null)
alSites.Add(ssInt);
}
}
if(alSites.Count == 0)
return null;
SiteIdentityPermission result = new SiteIdentityPermission(PermissionState.None);
result.m_sites = alSites.ToArray();
return result;
}
public override IPermission Union(IPermission target)
{
if (target == null)
{
if((this.m_sites == null || this.m_sites.Length == 0) && !this.m_unrestricted)
return null;
return this.Copy();
}
SiteIdentityPermission that = target as SiteIdentityPermission;
if(that == null)
throw new ArgumentException(Environment.GetResourceString("Argument_WrongType", this.GetType().FullName));
if(this.m_unrestricted || that.m_unrestricted)
{
SiteIdentityPermission res = new SiteIdentityPermission(PermissionState.None);
res.m_unrestricted = true;
return res;
}
if (this.m_sites == null || this.m_sites.Length == 0)
{
if(that.m_sites == null || that.m_sites.Length == 0)
return null;
return that.Copy();
}
if(that.m_sites == null || that.m_sites.Length == 0)
return this.Copy();
List alSites = new List();
foreach(SiteString ssThis in this.m_sites)
alSites.Add(ssThis);
foreach(SiteString ssThat in that.m_sites)
{
bool bDupe = false;
foreach(SiteString ss in alSites)
{
if(ssThat.Equals(ss))
{
bDupe = true;
break;
}
}
if(!bDupe)
alSites.Add(ssThat);
}
SiteIdentityPermission result = new SiteIdentityPermission(PermissionState.None);
result.m_sites = alSites.ToArray();
return result;
}
#if FEATURE_CAS_POLICY
public override void FromXml(SecurityElement esd)
{
m_unrestricted = false;
m_sites = null;
CodeAccessPermission.ValidateElement( esd, this );
String unr = esd.Attribute( "Unrestricted" );
if(unr != null && String.Compare(unr, "true", StringComparison.OrdinalIgnoreCase) == 0)
{
m_unrestricted = true;
return;
}
String elem = esd.Attribute( "Site" );
List al = new List();
if(elem != null)
al.Add(new SiteString( elem ));
ArrayList alChildren = esd.Children;
if(alChildren != null)
{
foreach(SecurityElement child in alChildren)
{
elem = child.Attribute( "Site" );
if(elem != null)
al.Add(new SiteString( elem ));
}
}
if(al.Count != 0)
m_sites = al.ToArray();
}
public override SecurityElement ToXml()
{
SecurityElement esd = CodeAccessPermission.CreatePermissionElement( this, "System.Security.Permissions.SiteIdentityPermission" );
if (m_unrestricted)
esd.AddAttribute( "Unrestricted", "true" );
else if (m_sites != null)
{
if (m_sites.Length == 1)
esd.AddAttribute( "Site", m_sites[0].ToString() );
else
{
int n;
for(n = 0; n < m_sites.Length; n++)
{
SecurityElement child = new SecurityElement("Site");
child.AddAttribute( "Site", m_sites[n].ToString() );
esd.AddChild(child);
}
}
}
return esd;
}
#endif // FEATURE_CAS_POLICY
/// [....]
//
namespace System.Security.Permissions
{
using System;
#if FEATURE_CAS_POLICY
using SecurityElement = System.Security.SecurityElement;
#endif // FEATURE_CAS_POLICY
using SiteString = System.Security.Util.SiteString;
using System.Text;
using System.Collections;
using System.Collections.Generic;
using System.Globalization;
using System.Runtime.Serialization;
[System.Runtime.InteropServices.ComVisible(true)]
[Serializable]
sealed public class SiteIdentityPermission : CodeAccessPermission, IBuiltInPermission
{
//------------------------------------------------------
//
// PRIVATE STATE DATA
//
//-----------------------------------------------------
[OptionalField(VersionAdded = 2)]
private bool m_unrestricted;
[OptionalField(VersionAdded = 2)]
private SiteString[] m_sites;
#if FEATURE_REMOTING
// This field will be populated only for non X-AD scenarios where we create a XML-ised string of the Permission
[OptionalField(VersionAdded = 2)]
private String m_serializedPermission;
// This field is legacy info from v1.x and is never used in v2.0 and beyond: purely for serialization purposes
private SiteString m_site;
[OnDeserialized]
private void OnDeserialized(StreamingContext ctx)
{
// v2.0 and beyond XML case
if (m_serializedPermission != null)
{
FromXml(SecurityElement.FromString(m_serializedPermission));
m_serializedPermission = null;
}
else if (m_site != null) //v1.x case where we read the m_site value
{
m_unrestricted = false;
m_sites = new SiteString[1];
m_sites[0] = m_site;
m_site = null;
}
}
[OnSerializing]
private void OnSerializing(StreamingContext ctx)
{
if ((ctx.State & ~(StreamingContextStates.Clone|StreamingContextStates.CrossAppDomain)) != 0)
{
m_serializedPermission = ToXml().ToString(); //for the v2 and beyond case
if (m_sites != null && m_sites.Length == 1) // for the v1.x case
m_site = m_sites[0];
}
}
[OnSerialized]
private void OnSerialized(StreamingContext ctx)
{
if ((ctx.State & ~(StreamingContextStates.Clone|StreamingContextStates.CrossAppDomain)) != 0)
{
m_serializedPermission = null;
m_site = null;
}
}
#endif // FEATURE_REMOTING
//-----------------------------------------------------
//
// PUBLIC CONSTRUCTORS
//
//-----------------------------------------------------
public SiteIdentityPermission(PermissionState state)
{
if (state == PermissionState.Unrestricted)
{
m_unrestricted = true;
}
else if (state == PermissionState.None)
{
m_unrestricted = false;
}
else
{
throw new ArgumentException(Environment.GetResourceString("Argument_InvalidPermissionState"));
}
}
public SiteIdentityPermission( String site )
{
Site = site;
}
//------------------------------------------------------
//
// PUBLIC ACCESSOR METHODS
//
//-----------------------------------------------------
public String Site
{
set
{
m_unrestricted = false;
m_sites = new SiteString[1];
m_sites[0] = new SiteString( value );
}
get
{
if(m_sites == null)
return "";
if(m_sites.Length == 1)
return m_sites[0].ToString();
throw new NotSupportedException(Environment.GetResourceString("NotSupported_AmbiguousIdentity"));
}
}
//------------------------------------------------------
//
// PRIVATE AND PROTECTED HELPERS FOR ACCESSORS AND CONSTRUCTORS
//
//------------------------------------------------------
//-----------------------------------------------------
//
// CODEACCESSPERMISSION IMPLEMENTATION
//
//------------------------------------------------------
//-----------------------------------------------------
//
// IPERMISSION IMPLEMENTATION
//
//-----------------------------------------------------
public override IPermission Copy()
{
SiteIdentityPermission perm = new SiteIdentityPermission( PermissionState.None );
perm.m_unrestricted = this.m_unrestricted;
if (this.m_sites != null)
{
perm.m_sites = new SiteString[this.m_sites.Length];
int n;
for(n = 0; n < this.m_sites.Length; n++)
perm.m_sites[n] = (SiteString)this.m_sites[n].Copy();
}
return perm;
}
public override bool IsSubsetOf(IPermission target)
{
if (target == null)
{
if(m_unrestricted)
return false;
if(m_sites == null)
return true;
if(m_sites.Length == 0)
return true;
return false;
}
SiteIdentityPermission that = target as SiteIdentityPermission;
if(that == null)
throw new ArgumentException(Environment.GetResourceString("Argument_WrongType", this.GetType().FullName));
if(that.m_unrestricted)
return true;
if(m_unrestricted)
return false;
if(this.m_sites != null)
{
foreach(SiteString ssThis in this.m_sites)
{
bool bOK = false;
if(that.m_sites != null)
{
foreach(SiteString ssThat in that.m_sites)
{
if(ssThis.IsSubsetOf(ssThat))
{
bOK = true;
break;
}
}
}
if(!bOK)
return false;
}
}
return true;
}
public override IPermission Intersect(IPermission target)
{
if (target == null)
return null;
SiteIdentityPermission that = target as SiteIdentityPermission;
if(that == null)
throw new ArgumentException(Environment.GetResourceString("Argument_WrongType", this.GetType().FullName));
if(this.m_unrestricted && that.m_unrestricted)
{
SiteIdentityPermission res = new SiteIdentityPermission(PermissionState.None);
res.m_unrestricted = true;
return res;
}
if(this.m_unrestricted)
return that.Copy();
if(that.m_unrestricted)
return this.Copy();
if(this.m_sites == null || that.m_sites == null || this.m_sites.Length == 0 || that.m_sites.Length == 0)
return null;
List alSites = new List();
foreach(SiteString ssThis in this.m_sites)
{
foreach(SiteString ssThat in that.m_sites)
{
SiteString ssInt = (SiteString)ssThis.Intersect(ssThat);
if(ssInt != null)
alSites.Add(ssInt);
}
}
if(alSites.Count == 0)
return null;
SiteIdentityPermission result = new SiteIdentityPermission(PermissionState.None);
result.m_sites = alSites.ToArray();
return result;
}
public override IPermission Union(IPermission target)
{
if (target == null)
{
if((this.m_sites == null || this.m_sites.Length == 0) && !this.m_unrestricted)
return null;
return this.Copy();
}
SiteIdentityPermission that = target as SiteIdentityPermission;
if(that == null)
throw new ArgumentException(Environment.GetResourceString("Argument_WrongType", this.GetType().FullName));
if(this.m_unrestricted || that.m_unrestricted)
{
SiteIdentityPermission res = new SiteIdentityPermission(PermissionState.None);
res.m_unrestricted = true;
return res;
}
if (this.m_sites == null || this.m_sites.Length == 0)
{
if(that.m_sites == null || that.m_sites.Length == 0)
return null;
return that.Copy();
}
if(that.m_sites == null || that.m_sites.Length == 0)
return this.Copy();
List alSites = new List();
foreach(SiteString ssThis in this.m_sites)
alSites.Add(ssThis);
foreach(SiteString ssThat in that.m_sites)
{
bool bDupe = false;
foreach(SiteString ss in alSites)
{
if(ssThat.Equals(ss))
{
bDupe = true;
break;
}
}
if(!bDupe)
alSites.Add(ssThat);
}
SiteIdentityPermission result = new SiteIdentityPermission(PermissionState.None);
result.m_sites = alSites.ToArray();
return result;
}
#if FEATURE_CAS_POLICY
public override void FromXml(SecurityElement esd)
{
m_unrestricted = false;
m_sites = null;
CodeAccessPermission.ValidateElement( esd, this );
String unr = esd.Attribute( "Unrestricted" );
if(unr != null && String.Compare(unr, "true", StringComparison.OrdinalIgnoreCase) == 0)
{
m_unrestricted = true;
return;
}
String elem = esd.Attribute( "Site" );
List al = new List();
if(elem != null)
al.Add(new SiteString( elem ));
ArrayList alChildren = esd.Children;
if(alChildren != null)
{
foreach(SecurityElement child in alChildren)
{
elem = child.Attribute( "Site" );
if(elem != null)
al.Add(new SiteString( elem ));
}
}
if(al.Count != 0)
m_sites = al.ToArray();
}
public override SecurityElement ToXml()
{
SecurityElement esd = CodeAccessPermission.CreatePermissionElement( this, "System.Security.Permissions.SiteIdentityPermission" );
if (m_unrestricted)
esd.AddAttribute( "Unrestricted", "true" );
else if (m_sites != null)
{
if (m_sites.Length == 1)
esd.AddAttribute( "Site", m_sites[0].ToString() );
else
{
int n;
for(n = 0; n < m_sites.Length; n++)
{
SecurityElement child = new SecurityElement("Site");
child.AddAttribute( "Site", m_sites[n].ToString() );
esd.AddChild(child);
}
}
}
return esd;
}
#endif // FEATURE_CAS_POLICY
///
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