2 // WarningHeaderValue.cs
5 // Marek Safar <marek.safar@gmail.com>
7 // Copyright (C) 2011 Xamarin Inc (http://www.xamarin.com)
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 using System.Globalization;
31 namespace System.Net.Http.Headers
33 public class WarningHeaderValue : ICloneable
35 public WarningHeaderValue (int code, string agent, string text)
37 if (!IsCodeValid (code))
38 throw new ArgumentOutOfRangeException ("code");
40 Parser.Uri.Check (agent);
41 Parser.Token.CheckQuotedString (text);
48 public WarningHeaderValue (int code, string agent, string text, DateTimeOffset date)
49 : this (code, agent, text)
54 private WarningHeaderValue ()
58 public string Agent { get; private set; }
59 public int Code { get; private set; }
60 public DateTimeOffset? Date { get; private set; }
61 public string Text { get; private set; }
63 static bool IsCodeValid (int code)
65 return code >= 0 && code < 1000;
68 object ICloneable.Clone ()
70 return MemberwiseClone ();
73 public override bool Equals (object obj)
75 var source = obj as WarningHeaderValue;
79 return Code == source.Code &&
80 string.Equals (source.Agent, Agent, StringComparison.OrdinalIgnoreCase) &&
81 Text == source.Text &&
85 public override int GetHashCode ()
87 int hc = Code.GetHashCode ();
88 hc ^= Agent.ToLowerInvariant ().GetHashCode ();
89 hc ^= Text.GetHashCode ();
90 hc ^= Date.GetHashCode ();
95 public static WarningHeaderValue Parse (string input)
97 WarningHeaderValue value;
98 if (TryParse (input, out value))
101 throw new FormatException (input);
104 public static bool TryParse (string input, out WarningHeaderValue parsedValue)
108 var lexer = new Lexer (input);
109 var t = lexer.Scan ();
111 if (t != Token.Type.Token)
115 if (!lexer.TryGetNumericValue (t, out code) || !IsCodeValid (code))
119 if (t != Token.Type.Token)
123 if (lexer.PeekChar () == ':') {
126 next = lexer.Scan ();
127 if (next != Token.Type.Token)
131 var value = new WarningHeaderValue ();
133 value.Agent = lexer.GetStringValue (t, next);
136 if (t != Token.Type.QuotedString)
139 value.Text = lexer.GetStringValue (t);
142 if (t == Token.Type.QuotedString) {
144 if (!lexer.TryGetDateValue (t, out date))
151 if (t != Token.Type.End)
158 public override string ToString ()
160 string s = Code.ToString ("000") + " " + Agent + " " + Text;
162 s = s + " \"" + Date.Value.ToString ("r", CultureInfo.InvariantCulture) + "\"";