niko
197 lines
9.1 KiB
C#
197 lines
9.1 KiB
C#
using System;
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using System.Runtime.InteropServices;
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namespace System.Security.Permissions
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{
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/// <summary>Controls the ability to access files or folders through a File dialog box. This class cannot be inherited.</summary>
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// Token: 0x02000541 RID: 1345
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[ComVisible(true)]
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[Serializable]
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public sealed class FileDialogPermission : CodeAccessPermission, IBuiltInPermission, IUnrestrictedPermission
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{
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/// <summary>Initializes a new instance of the <see cref="T:System.Security.Permissions.FileDialogPermission" /> class with either restricted or unrestricted permission, as specified.</summary>
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/// <param name="state">One of the <see cref="T:System.Security.Permissions.PermissionState" /> values (Unrestricted or None). </param>
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/// <exception cref="T:System.ArgumentException">The <paramref name="state" /> parameter is not a valid value of <see cref="T:System.Security.Permissions.PermissionState" />. </exception>
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// Token: 0x06003131 RID: 12593 RVA: 0x000A9544 File Offset: 0x000A7744
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public FileDialogPermission(PermissionState state)
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{
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if (CodeAccessPermission.CheckPermissionState(state, true) == PermissionState.Unrestricted)
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{
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this._access = FileDialogPermissionAccess.OpenSave;
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}
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else
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{
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this._access = FileDialogPermissionAccess.None;
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}
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}
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/// <summary>Initializes a new instance of the <see cref="T:System.Security.Permissions.FileDialogPermission" /> class with the specified access.</summary>
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/// <param name="access">A bitwise combination of the <see cref="T:System.Security.Permissions.FileDialogPermissionAccess" /> values. </param>
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/// <exception cref="T:System.ArgumentException">The <paramref name="access" /> parameter is not a valid combination of the <see cref="T:System.Security.Permissions.FileDialogPermissionAccess" /> values. </exception>
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// Token: 0x06003132 RID: 12594 RVA: 0x000A9578 File Offset: 0x000A7778
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public FileDialogPermission(FileDialogPermissionAccess access)
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{
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this.Access = access;
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}
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// Token: 0x06003133 RID: 12595 RVA: 0x000A9588 File Offset: 0x000A7788
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int IBuiltInPermission.GetTokenIndex()
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{
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return 1;
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}
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/// <summary>Gets or sets the permitted access to files.</summary>
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/// <returns>The permitted access to files.</returns>
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/// <exception cref="T:System.ArgumentException">An attempt is made to set the <paramref name="access" /> parameter to a value that is not a valid combination of the <see cref="T:System.Security.Permissions.FileDialogPermissionAccess" /> values. </exception>
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// Token: 0x170009A0 RID: 2464
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// (get) Token: 0x06003134 RID: 12596 RVA: 0x000A958C File Offset: 0x000A778C
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// (set) Token: 0x06003135 RID: 12597 RVA: 0x000A9594 File Offset: 0x000A7794
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public FileDialogPermissionAccess Access
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{
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get
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{
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return this._access;
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}
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set
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{
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if (!Enum.IsDefined(typeof(FileDialogPermissionAccess), value))
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{
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string text = string.Format(Locale.GetText("Invalid enum {0}"), value);
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throw new ArgumentException(text, "FileDialogPermissionAccess");
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}
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this._access = value;
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}
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}
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/// <summary>Creates and returns an identical copy of the current permission.</summary>
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/// <returns>A copy of the current permission.</returns>
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// Token: 0x06003136 RID: 12598 RVA: 0x000A95E4 File Offset: 0x000A77E4
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public override IPermission Copy()
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{
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return new FileDialogPermission(this._access);
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}
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/// <summary>Reconstructs a permission with a specified state from an XML encoding.</summary>
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/// <param name="esd">The XML encoding used to reconstruct the permission. </param>
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/// <exception cref="T:System.ArgumentNullException">The <paramref name="esd" /> parameter is null. </exception>
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/// <exception cref="T:System.ArgumentException">The <paramref name="esd" /> parameter is not a valid permission element.-or- The version number of the <paramref name="esd" /> parameter is not supported. </exception>
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// Token: 0x06003137 RID: 12599 RVA: 0x000A95F4 File Offset: 0x000A77F4
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public override void FromXml(SecurityElement esd)
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{
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CodeAccessPermission.CheckSecurityElement(esd, "esd", 1, 1);
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if (CodeAccessPermission.IsUnrestricted(esd))
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{
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this._access = FileDialogPermissionAccess.OpenSave;
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}
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else
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{
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string text = esd.Attribute("Access");
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if (text == null)
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{
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this._access = FileDialogPermissionAccess.None;
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}
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else
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{
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this._access = (FileDialogPermissionAccess)((int)Enum.Parse(typeof(FileDialogPermissionAccess), text));
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}
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}
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}
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/// <summary>Creates and returns a permission that is the intersection of the current permission and the specified permission.</summary>
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/// <returns>A new permission that represents the intersection of the current permission and the specified permission. This new permission is null if the intersection is empty.</returns>
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/// <param name="target">A permission to intersect with the current permission. It must be the same type as the current permission. </param>
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/// <exception cref="T:System.ArgumentException">The <paramref name="target" /> parameter is not null and is not of the same type as the current permission. </exception>
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// Token: 0x06003138 RID: 12600 RVA: 0x000A9660 File Offset: 0x000A7860
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public override IPermission Intersect(IPermission target)
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{
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FileDialogPermission fileDialogPermission = this.Cast(target);
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if (fileDialogPermission == null)
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{
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return null;
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}
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FileDialogPermissionAccess fileDialogPermissionAccess = this._access & fileDialogPermission._access;
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return (fileDialogPermissionAccess != FileDialogPermissionAccess.None) ? new FileDialogPermission(fileDialogPermissionAccess) : null;
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}
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/// <summary>Determines whether the current permission is a subset of the specified permission.</summary>
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/// <returns>true if the current permission is a subset of the specified permission; otherwise, false.</returns>
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/// <param name="target">A permission that is to be tested for the subset relationship. This permission must be the same type as the current permission. </param>
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/// <exception cref="T:System.ArgumentException">The <paramref name="target" /> parameter is not null and is not of the same type as the current permission. </exception>
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// Token: 0x06003139 RID: 12601 RVA: 0x000A96A0 File Offset: 0x000A78A0
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public override bool IsSubsetOf(IPermission target)
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{
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FileDialogPermission fileDialogPermission = this.Cast(target);
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return fileDialogPermission != null && (this._access & fileDialogPermission._access) == this._access;
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}
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/// <summary>Returns a value indicating whether the current permission is unrestricted.</summary>
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/// <returns>true if the current permission is unrestricted; otherwise, false.</returns>
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// Token: 0x0600313A RID: 12602 RVA: 0x000A96D4 File Offset: 0x000A78D4
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public bool IsUnrestricted()
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{
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return this._access == FileDialogPermissionAccess.OpenSave;
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}
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/// <summary>Creates an XML encoding of the permission and its current state.</summary>
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/// <returns>An XML encoding of the permission, including state information.</returns>
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// Token: 0x0600313B RID: 12603 RVA: 0x000A96E0 File Offset: 0x000A78E0
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public override SecurityElement ToXml()
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{
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SecurityElement securityElement = base.Element(1);
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switch (this._access)
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{
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case FileDialogPermissionAccess.Open:
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securityElement.AddAttribute("Access", "Open");
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break;
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case FileDialogPermissionAccess.Save:
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securityElement.AddAttribute("Access", "Save");
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break;
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case FileDialogPermissionAccess.OpenSave:
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securityElement.AddAttribute("Unrestricted", "true");
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break;
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}
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return securityElement;
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}
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/// <summary>Creates a permission that is the union of the current permission and the specified permission.</summary>
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/// <returns>A new permission that represents the union of the current permission and the specified permission.</returns>
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/// <param name="target">A permission to combine with the current permission. It must be of the same type as the current permission. </param>
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/// <exception cref="T:System.ArgumentException">The <paramref name="target" /> parameter is not null and is not of the same type as the current permission. </exception>
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// Token: 0x0600313C RID: 12604 RVA: 0x000A9758 File Offset: 0x000A7958
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public override IPermission Union(IPermission target)
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{
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FileDialogPermission fileDialogPermission = this.Cast(target);
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if (fileDialogPermission == null)
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{
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return this.Copy();
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}
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if (this.IsUnrestricted() || fileDialogPermission.IsUnrestricted())
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{
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return new FileDialogPermission(PermissionState.Unrestricted);
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}
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return new FileDialogPermission(this._access | fileDialogPermission._access);
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}
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// Token: 0x0600313D RID: 12605 RVA: 0x000A97AC File Offset: 0x000A79AC
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private FileDialogPermission Cast(IPermission target)
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{
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if (target == null)
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{
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return null;
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}
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FileDialogPermission fileDialogPermission = target as FileDialogPermission;
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if (fileDialogPermission == null)
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{
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CodeAccessPermission.ThrowInvalidPermission(target, typeof(FileDialogPermission));
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}
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return fileDialogPermission;
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}
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// Token: 0x04001417 RID: 5143
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private const int version = 1;
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// Token: 0x04001418 RID: 5144
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private FileDialogPermissionAccess _access;
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}
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}
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