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Imported Upstream version 4.6.0.125

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Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4
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Xamarin Public Jenkins (auto-signing)
2016-08-03 10:59:49 +00:00
parent a569aebcfd
commit e79aa3c0ed
17047 changed files with 3137615 additions and 392334 deletions
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mcs/class/referencesource/System/net/System/GenericUriParser.cs Normal file
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//------------------------------------------------------------------------------
// <copyright file="GenericUriParser.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
/*++
Abstract:
This is a public sealed class that exposes various Uri parsing options
suported by built in Uri parser
Author:
Alexei Vopilov Jul 26 2004
Revision History:
--*/
namespace System {
using System.Globalization;
using System.Collections;
using System.Security.Permissions;
//
// This enum specifies the public options used to customize a hierarchical built-in parser.
//
[Flags]
public enum GenericUriParserOptions
{
// A hierarchical URI, allows a userinfo, non empty Inet-based authority, path, query and fragment
// The URI path gets agressively compressed means dots, slashes and backslashes are unescaped,
// backslashesare converted, and then it compresses the path. It also removes trailing dots,
// empty segments and dots-only segments
Default = 0x0,
// Allows a free style authority that would terminate with '/'
GenericAuthority = 0x1,
// Allows an empty authority foo:///
AllowEmptyAuthority = 0x2,
// Disables a user info component, it implied in the case of GenericAuthority flag
NoUserInfo = 0x4,
// Disables a port component, it is implied in the case of GenericAuthority flag
NoPort = 0x8,
// Disables a query. A ? char is considered as part of the path and is escaped
NoQuery = 0x10,
// Disables a fragment. A # char is considered as part of the path or query and is escaped
NoFragment = 0x20,
// if false then converta \ to /, otheriwse does this conversion for the Path component.
DontConvertPathBackslashes = 0x40,
// if false, then a/./b or a/.../b becomes a/b and /a/../b becomes /b
DontCompressPath = 0x80,
// if false then a/%2e./b becomes a/../b and then usually compressed
DontUnescapePathDotsAndSlashes= 0x100,
// IDN hosts supported. if true then unicode hostname is converted to IDN host
// and vice versa
Idn = 0x200,
// Iri strict parsing flag. Makes sense for Unicode. If true then string is
// normalized, bidi control characters are removed, unicode char limits are checked
IriParsing = 0x400
}
//
// A hierachical Uri parser that supports various customization options
//
// ATTN: This type must be compile-time registered with UriParser.CheckSetIsSimpleFlag() method
// to avoid calling into the user code if there is no one.
//
public class GenericUriParser: UriParser
{
//
// The only availabe .ctor.
//
public GenericUriParser(GenericUriParserOptions options)
: base(MapGenericParserOptions(options))
{
}
//
private static UriSyntaxFlags MapGenericParserOptions(GenericUriParserOptions options)
{
//
// Here we map public flags to internal ones
// Note an instacne of this parser is always a "simple parser" since the class is sealed.
//
UriSyntaxFlags flags = DefaultGenericUriParserFlags;
if ((options & GenericUriParserOptions.GenericAuthority) != 0)
{
// Disable some options that are not compatible with generic authority
flags &= ~(UriSyntaxFlags.MayHaveUserInfo | UriSyntaxFlags.MayHavePort | UriSyntaxFlags.AllowUncHost | UriSyntaxFlags.AllowAnInternetHost);
flags |= UriSyntaxFlags.AllowAnyOtherHost;
}
if ((options & GenericUriParserOptions.AllowEmptyAuthority) != 0)
{
flags |= UriSyntaxFlags.AllowEmptyHost;
}
if ((options & GenericUriParserOptions.NoUserInfo) != 0)
{
flags &= ~UriSyntaxFlags.MayHaveUserInfo;
}
if ((options & GenericUriParserOptions.NoPort) != 0)
{
flags &= ~UriSyntaxFlags.MayHavePort;
}
if ((options & GenericUriParserOptions.NoQuery) != 0)
{
flags &= ~UriSyntaxFlags.MayHaveQuery;
}
if ((options & GenericUriParserOptions.NoFragment) != 0)
{
flags &= ~UriSyntaxFlags.MayHaveFragment;
}
if ((options & GenericUriParserOptions.DontConvertPathBackslashes) != 0)
{
flags &= ~UriSyntaxFlags.ConvertPathSlashes;
}
if ((options & GenericUriParserOptions.DontCompressPath) != 0)
{
flags &= ~(UriSyntaxFlags.CompressPath | UriSyntaxFlags.CanonicalizeAsFilePath);
}
if ((options & GenericUriParserOptions.DontUnescapePathDotsAndSlashes) != 0)
{
flags &= ~UriSyntaxFlags.UnEscapeDotsAndSlashes;
}
if ((options & GenericUriParserOptions.Idn) != 0)
{
flags |= UriSyntaxFlags.AllowIdn;
}
if ((options & GenericUriParserOptions.IriParsing) != 0)
{
flags |= UriSyntaxFlags.AllowIriParsing;
}
return flags;
}
private const UriSyntaxFlags DefaultGenericUriParserFlags =
UriSyntaxFlags.MustHaveAuthority |
//
UriSyntaxFlags.MayHaveUserInfo |
UriSyntaxFlags.MayHavePort |
UriSyntaxFlags.MayHavePath |
UriSyntaxFlags.MayHaveQuery |
UriSyntaxFlags.MayHaveFragment |
//
UriSyntaxFlags.AllowUncHost | //
UriSyntaxFlags.AllowAnInternetHost |
//
UriSyntaxFlags.PathIsRooted |
//
UriSyntaxFlags.ConvertPathSlashes |
UriSyntaxFlags.CompressPath |
UriSyntaxFlags.CanonicalizeAsFilePath |
UriSyntaxFlags.UnEscapeDotsAndSlashes;
}
}