// IPermission interface methods
/// <include file='doc\DBDataPermission.uex' path='docs/doc[@for="DBDataPermission.Copy"]/*' />
override public IPermission Copy()
{
DBDataPermission copy = CreateInstance();
copy.CopyFrom(this);
return(copy);
}
public override IPermission Union(IPermission target)
{
if (target == null)
{
return(this.Copy());
}
if (target.GetType() != base.GetType())
{
throw ADP.PermissionTypeMismatch();
}
if (this.IsUnrestricted())
{
return(this.Copy());
}
DBDataPermission permission = (DBDataPermission)target.Copy();
if (!permission.IsUnrestricted())
{
permission._allowBlankPassword |= this.AllowBlankPassword;
if (this._keyvalues != null)
{
foreach (DBConnectionString str in this._keyvalues)
{
permission.AddPermissionEntry(str);
}
}
}
if (!permission.IsEmpty())
{
return(permission);
}
return(null);
}
public override bool IsSubsetOf(IPermission target)
{
if (target == null)
{
return(this.IsEmpty());
}
if (target.GetType() != base.GetType())
{
throw ADP.PermissionTypeMismatch();
}
DBDataPermission permission = target as DBDataPermission;
bool flag = permission.IsUnrestricted();
if ((!flag && !this.IsUnrestricted()) && (!this.AllowBlankPassword || permission.AllowBlankPassword))
{
if ((this._keyvalues != null) && (permission._keyvaluetree == null))
{
return(flag);
}
flag = true;
if (this._keyvalues == null)
{
return(flag);
}
foreach (DBConnectionString str in this._keyvalues)
{
if (!permission._keyvaluetree.CheckValueForKeyPermit(str))
{
return(false);
}
}
}
return(flag);
}
public override IPermission Copy()
{
DBDataPermission permission = this.CreateInstance();
permission.CopyFrom(this);
return(permission);
}
/// <include file='doc\DBDataPermission.uex' path='docs/doc[@for="DBDataPermission.Union"]/*' />
override public IPermission Union(IPermission target)
{
if (null == target)
{
return(this.Copy());
}
if (target.GetType() != this.GetType())
{
throw ADP.Argument("target");
}
if (IsUnrestricted()) // MDAC 84803
{
return(this.Copy());
}
DBDataPermission newPermission = (DBDataPermission)target.Copy();
if (!newPermission.IsUnrestricted())
{
newPermission._allowBlankPassword |= AllowBlankPassword;
if (null != _keyvalues)
{
foreach (DBConnectionString entry in _keyvalues)
{
newPermission.AddEntry(entry);
}
}
}
return(newPermission);
}
private void CopyFrom(DBDataPermission permission)
{
_isUnrestricted = permission.IsUnrestricted();
if (!_isUnrestricted)
{
_allowBlankPassword = permission.AllowBlankPassword;
try {
lock (permission) { // single writer, multiple reader
if (null != permission._keyvalues)
{
_keyvalues = (ArrayList)permission._keyvalues.Clone();
if (null != permission._keyvaluetree)
{
_keyvaluetree = permission._keyvaluetree.Copy();
}
}
}
}
catch { // MDAC 80973
throw;
}
}
}
/// <include file='doc\DBDataPermission.uex' path='docs/doc[@for="DBDataPermission.DBDataPermission3"]/*' />
protected DBDataPermission(DBDataPermission permission) // for Copy
{
if (null == permission)
{
throw ADP.ArgumentNull("permissionAttribute");
}
CopyFrom(permission);
}
public override IPermission Copy()
{
DBDataPermission dbdp = CreateInstance();
dbdp.allowBlankPassword = this.allowBlankPassword;
dbdp._connections = (Hashtable)this._connections.Clone();
return(dbdp);
}
private void Check (string msg, DBDataPermission dbdp, bool blank, bool unrestricted, int count)
{
Assert.AreEqual (blank, dbdp.AllowBlankPassword, msg + ".AllowBlankPassword");
Assert.AreEqual (unrestricted, dbdp.IsUnrestricted (), msg + ".IsUnrestricted");
if (count == 0)
Assert.IsNull (dbdp.ToXml ().Children, msg + ".Count != 0");
else
Assert.AreEqual (count, dbdp.ToXml ().Children.Count, msg + ".Count");
}
protected DBDataPermission(DBDataPermission permission)
{
this._keyvaluetree = NameValuePermission.Default;
if (permission == null)
{
throw ADP.ArgumentNull("permissionAttribute");
}
this.CopyFrom(permission);
}
protected DBDataPermission(DBDataPermission permission)
{
this._keyvaluetree = NameValuePermission.Default;
if (permission == null)
{
throw ADP.ArgumentNull("permissionAttribute");
}
this.CopyFrom(permission);
}
protected DBDataPermission (DBDataPermission permission)
{
if (permission == null)
throw new ArgumentNullException ("permission");
state = permission.state;
if (state != PermissionState.Unrestricted) {
allowBlankPassword = permission.allowBlankPassword;
_connections = (Hashtable) permission._connections.Clone ();
}
}
/// <include file='doc\DBDataPermission.uex' path='docs/doc[@for="DBDataPermission.IsSubsetOf"]/*' />
override public bool IsSubsetOf(IPermission target)
{
if (null == target)
{
return(IsEmpty());
}
if (target.GetType() != this.GetType())
{
throw ADP.WrongType(this.GetType());
}
DBDataPermission superset = (target as DBDataPermission);
#if DATAPERMIT
if (null != superset._keyvalues)
{
Debug.WriteLine("+ " + (superset._keyvalues[0] as DBConnectionString).ConnectionString);
}
else
{
Debug.WriteLine("+ <>");
}
if (null != _keyvalues)
{
Debug.WriteLine("- " + (_keyvalues[0] as DBConnectionString).ConnectionString);
}
else
{
Debug.WriteLine("- <>");
}
#endif
bool subset = superset.IsUnrestricted();
if (!subset)
{
subset = (!IsUnrestricted() &&
(!AllowBlankPassword || superset.AllowBlankPassword) &&
((null == _keyvalues) || (null != superset._keyvaluetree)));
if (subset && (null != _keyvalues))
{
foreach (DBConnectionString kventry in _keyvalues)
{
if (!superset._keyvaluetree.CheckValueForKeyPermit(kventry))
{
subset = false;
break;
}
}
}
}
return(subset);
}
protected DBDataPermission(DBDataPermission permission)
{
if (permission == null)
{
throw new ArgumentNullException("permission");
}
state = permission.state;
if (state != PermissionState.Unrestricted)
{
allowBlankPassword = permission.allowBlankPassword;
_connections = (Hashtable)permission._connections.Clone();
}
}
private void CopyFrom(DBDataPermission permission)
{
this._isUnrestricted = permission.IsUnrestricted();
if (!this._isUnrestricted)
{
this._allowBlankPassword = permission.AllowBlankPassword;
if (permission._keyvalues != null)
{
this._keyvalues = (ArrayList)permission._keyvalues.Clone();
if (permission._keyvaluetree != null)
{
this._keyvaluetree = permission._keyvaluetree.CopyNameValue();
}
}
}
}
private DBDataPermission Cast(IPermission target)
{
if (target == null)
{
return(null);
}
DBDataPermission dbdp = (target as DBDataPermission);
if (dbdp == null)
{
PermissionHelper.ThrowInvalidPermission(target, this.GetType());
}
return(dbdp);
}
override public IPermission Intersect(IPermission target)
{ // used during Deny actions
if (null == target)
{
return(null);
}
if (target.GetType() != this.GetType())
{
throw ADP.PermissionTypeMismatch();
}
if (this.IsUnrestricted())
{ // MDAC 84803, NDPWhidbey 29121
return(target.Copy());
}
DBDataPermission operand = (DBDataPermission)target;
if (operand.IsUnrestricted())
{ // NDPWhidbey 29121
return(this.Copy());
}
SqlClientPermission newPermission = (SqlClientPermission)operand.Copy();
newPermission.AllowBlankPassword &= AllowBlankPassword;
if ((null != _keyvalues) && (null != newPermission._keyvalues))
{
newPermission._keyvalues.Clear();
newPermission._keyvaluetree.Intersect(newPermission._keyvalues, _keyvaluetree);
}
else
{
// either target.Add or this.Add have not been called
// return a non-null object so IsSubset calls will fail
newPermission._keyvalues = null;
newPermission._keyvaluetree = null;
}
if (newPermission.IsEmpty())
{ // no intersection, MDAC 86773
newPermission = null;
}
return(newPermission);
}
public override IPermission Intersect(IPermission target)
{
// FIXME: restrictions not completely implemented - nor documented
DBDataPermission dbdp = Cast(target);
if (dbdp == null)
{
return(null);
}
if (IsUnrestricted())
{
if (dbdp.IsUnrestricted())
{
DBDataPermission u = CreateInstance();
u.state = PermissionState.Unrestricted;
return(u);
}
return(dbdp.Copy());
}
if (dbdp.IsUnrestricted())
{
return(Copy());
}
if (IsEmpty() || dbdp.IsEmpty())
{
return(null);
}
DBDataPermission p = CreateInstance();
p.allowBlankPassword = (allowBlankPassword && dbdp.allowBlankPassword);
foreach (DictionaryEntry de in _connections)
{
object o = dbdp._connections [de.Key];
if (o != null)
{
p._connections.Add(de.Key, de.Value);
}
}
return((p._connections.Count > 0) ? p : null);
}
public override bool IsSubsetOf(IPermission target)
{
// FIXME: restrictions not completely implemented - nor documented
DBDataPermission dbdp = Cast(target);
if (dbdp == null)
{
return(IsEmpty());
}
if (dbdp.IsUnrestricted())
{
return(true);
}
if (IsUnrestricted())
{
return(dbdp.IsUnrestricted());
}
if (allowBlankPassword && !dbdp.allowBlankPassword)
{
return(false);
}
if (_connections.Count > dbdp._connections.Count)
{
return(false);
}
foreach (DictionaryEntry de in _connections)
{
object o = dbdp._connections [de.Key];
if (o == null)
{
return(false);
}
// FIXME: this is a subset of what is required
// it seems that we must process both the connect string
// and the restrictions - but this has other effects :-/
}
return(true);
}
/// <include file='doc\DBDataPermission.uex' path='docs/doc[@for="DBDataPermission.Intersect"]/*' />
override public IPermission Intersect(IPermission target) // used during Deny actions
{
if (null == target)
{
return(null);
}
if (target.GetType() != this.GetType())
{
throw ADP.Argument("target");
}
if (IsUnrestricted()) // MDAC 84803
{
return(Copy());
}
DBDataPermission newPermission = (DBDataPermission)target.Copy();
if (!newPermission.IsUnrestricted())
{
newPermission._allowBlankPassword &= AllowBlankPassword;
if ((null != _keyvalues) && (null != newPermission._keyvalues))
{
newPermission._keyvalues.Clear();
newPermission._keyvaluetree.Intersect(newPermission._keyvalues, _keyvaluetree);
}
else
{
// either target.Add or this.Add have not been called
// return a non-null object so IsSubset calls will fail
newPermission._keyvalues = null;
newPermission._keyvaluetree = null;
}
if (newPermission.IsEmpty()) // MDAC 86773
{
newPermission = null;
}
}
return(newPermission);
}
public override IPermission Intersect(IPermission target)
{
if (target == null)
{
return(null);
}
if (target.GetType() != base.GetType())
{
throw ADP.PermissionTypeMismatch();
}
if (this.IsUnrestricted())
{
return(target.Copy());
}
DBDataPermission permission2 = (DBDataPermission)target;
if (permission2.IsUnrestricted())
{
return(this.Copy());
}
DBDataPermission permission = (DBDataPermission)permission2.Copy();
permission._allowBlankPassword &= this.AllowBlankPassword;
if ((this._keyvalues != null) && (permission._keyvalues != null))
{
permission._keyvalues.Clear();
permission._keyvaluetree.Intersect(permission._keyvalues, this._keyvaluetree);
}
else
{
permission._keyvalues = null;
permission._keyvaluetree = null;
}
if (permission.IsEmpty())
{
permission = null;
}
return(permission);
}
override public bool IsSubsetOf(IPermission target)
{
if (null == target)
{
return(IsEmpty());
}
if (target.GetType() != this.GetType())
{
throw ADP.PermissionTypeMismatch();
}
DBDataPermission superset = (target as DBDataPermission);
bool subset = superset.IsUnrestricted();
if (!subset)
{
if (!IsUnrestricted() &&
(!AllowBlankPassword || superset.AllowBlankPassword) &&
((null == _keyvalues) || (null != superset._keyvaluetree)))
{
subset = true;
if (null != _keyvalues)
{
foreach (DBConnectionString kventry in _keyvalues)
{
if (!superset._keyvaluetree.CheckValueForKeyPermit(kventry))
{
subset = false;
break;
}
}
}
}
}
return(subset);
}
public override IPermission Union(IPermission target)
{
// FIXME: restrictions not completely implemented - nor documented
DBDataPermission dbdp = Cast(target);
if (dbdp == null)
{
return(Copy());
}
if (IsEmpty() && dbdp.IsEmpty())
{
return(Copy());
}
DBDataPermission p = CreateInstance();
if (IsUnrestricted() || dbdp.IsUnrestricted())
{
p.state = PermissionState.Unrestricted;
}
else
{
p.allowBlankPassword = (allowBlankPassword || dbdp.allowBlankPassword);
p._connections = new Hashtable(_connections.Count + dbdp._connections.Count);
foreach (DictionaryEntry de in _connections)
{
p._connections.Add(de.Key, de.Value);
}
// don't duplicate
foreach (DictionaryEntry de in dbdp._connections)
{
p._connections [de.Key] = de.Value;
}
}
return(p);
}
protected DBDataPermission(DBDataPermission permission)
{
}
internal FirebirdClientPermission(DBDataPermission permission) : base (permission)
{
}
// required for Copy method
internal OdbcPermission (DBDataPermission permission)
: base (permission)
{
}
public NonAbstractDBDataPermission (DBDataPermission permission, bool allowBlankPassword)
: base (permission)
{
AllowBlankPassword = allowBlankPassword;
}
private IngresPermission(DBDataPermission permission)
: base(permission)
{
}
public NonAbstractDBDataPermission (DBDataPermission permission)
: base (permission)
{
}
protected DBDataPermission(DBDataPermission permission) { // V1.0.5000, for Copy
if (null == permission) {
throw ADP.ArgumentNull("permissionAttribute");
}
CopyFrom(permission);
}
private void CopyFrom(DBDataPermission permission) {
_isUnrestricted = permission.IsUnrestricted();
if (!_isUnrestricted) {
_allowBlankPassword = permission.AllowBlankPassword;
if (null != permission._keyvalues) {
_keyvalues = (ArrayList) permission._keyvalues.Clone();
if (null != permission._keyvaluetree) {
_keyvaluetree = permission._keyvaluetree.CopyNameValue();
}
}
}
}
internal MySqlClientPermission (DBDataPermission permission)
: base (permission)
{
}
// required for Copy method
internal OraclePermission (DBDataPermission permission)
: base (permission)
{
}
// required for Copy method
internal OleDbPermission (DBDataPermission permission)
: base (permission)
{
}
