* roottypes.cs: Rename from tree.cs.
[mono.git] / mcs / class / System / System.Net / WebHeaderCollection.cs
index f41105bd5bcc5aef063dfe373f87957e550abcb8..6a58fc90c6640404ad84f2e24ecd68d1f2e89b2a 100644 (file)
@@ -1,12 +1,12 @@
-//\r
-// System.Net.WebHeaderCollection\r
-//\r
-// Authors:\r
-//     Lawrence Pit (loz@cable.a2000.nl)\r
-//     Gonzalo Paniagua Javier (gonzalo@ximian.com)\r
-//\r
-// (c) 2003 Ximian, Inc. (http://www.ximian.com)\r
-//\r
+//
+// System.Net.WebHeaderCollection
+//
+// Authors:
+//     Lawrence Pit (loz@cable.a2000.nl)
+//     Gonzalo Paniagua Javier (gonzalo@ximian.com)
+//
+// (c) 2003 Ximian, Inc. (http://www.ximian.com)
+//
 
 //
 // Permission is hereby granted, free of charge, to any person obtaining
 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 //
-\r
-using System;\r
-using System.Collections;\r
-using System.Collections.Specialized;\r
-using System.Runtime.InteropServices;\r
-using System.Runtime.Serialization;\r
-using System.Text;\r
-    \r
-// See RFC 2068 par 4.2 Message Headers\r
-    \r
-namespace System.Net \r
-{\r
-       [Serializable]\r
-       [ComVisible(true)]\r
-       public class WebHeaderCollection : NameValueCollection, ISerializable\r
-       {\r
-               private static readonly Hashtable restricted;\r
-               private static readonly Hashtable multiValue;\r
-               private bool internallyCreated = false;\r
-               \r
-               // Static Initializer\r
-               \r
-               static WebHeaderCollection () \r
-               {\r
-                       // the list of restricted header names as defined \r
-                       // by the ms.net spec\r
-                       restricted = new Hashtable (CaseInsensitiveHashCodeProvider.Default,\r
-                                                   CaseInsensitiveComparer.Default);\r
-\r
-                       restricted.Add ("accept", true);\r
-                       restricted.Add ("connection", true);\r
-                       restricted.Add ("content-length", true);\r
-                       restricted.Add ("content-type", true);\r
-                       restricted.Add ("date", true);\r
-                       restricted.Add ("expect", true);\r
-                       restricted.Add ("host", true);\r
-                       restricted.Add ("range", true);\r
-                       restricted.Add ("referer", true);\r
-                       restricted.Add ("transfer-encoding", true);\r
-                       restricted.Add ("user-agent", true);                    \r
-                       \r
-                       // see par 14 of RFC 2068 to see which header names\r
-                       // accept multiple values each separated by a comma\r
-                       multiValue = new Hashtable (CaseInsensitiveHashCodeProvider.Default,\r
-                                                   CaseInsensitiveComparer.Default);\r
-\r
-                       multiValue.Add ("accept", true);\r
-                       multiValue.Add ("accept-charset", true);\r
-                       multiValue.Add ("accept-encoding", true);\r
-                       multiValue.Add ("accept-language", true);\r
-                       multiValue.Add ("accept-ranges", true);\r
-                       multiValue.Add ("allow", true);\r
-                       multiValue.Add ("authorization", true);\r
-                       multiValue.Add ("cache-control", true);\r
-                       multiValue.Add ("connection", true);\r
-                       multiValue.Add ("content-encoding", true);\r
-                       multiValue.Add ("content-language", true);                      \r
-                       multiValue.Add ("expect", true);                \r
-                       multiValue.Add ("if-match", true);\r
-                       multiValue.Add ("if-none-match", true);\r
-                       multiValue.Add ("proxy-authenticate", true);\r
-                       multiValue.Add ("public", true);                        \r
-                       multiValue.Add ("range", true);\r
-                       multiValue.Add ("transfer-encoding", true);\r
-                       multiValue.Add ("upgrade", true);\r
-                       multiValue.Add ("vary", true);\r
-                       multiValue.Add ("via", true);\r
-                       multiValue.Add ("warning", true);\r
+
+using System;
+using System.Collections;
+using System.Collections.Specialized;
+using System.Runtime.InteropServices;
+using System.Runtime.Serialization;
+using System.Text;
+    
+// See RFC 2068 par 4.2 Message Headers
+    
+namespace System.Net 
+{
+       [Serializable]
+       [ComVisible(true)]
+       public class WebHeaderCollection : NameValueCollection, ISerializable
+       {
+               private static readonly Hashtable restricted;
+               private static readonly Hashtable multiValue;
+               private bool internallyCreated = false;
+               
+               // Static Initializer
+               
+               static WebHeaderCollection () 
+               {
+                       // the list of restricted header names as defined 
+                       // by the ms.net spec
+                       restricted = new Hashtable (CaseInsensitiveHashCodeProvider.Default,
+                                                   CaseInsensitiveComparer.Default);
+
+                       restricted.Add ("accept", true);
+                       restricted.Add ("connection", true);
+                       restricted.Add ("content-length", true);
+                       restricted.Add ("content-type", true);
+                       restricted.Add ("date", true);
+                       restricted.Add ("expect", true);
+                       restricted.Add ("host", true);
+                       restricted.Add ("if-modified-since", true);
+                       restricted.Add ("range", true);
+                       restricted.Add ("referer", true);
+                       restricted.Add ("transfer-encoding", true);
+                       restricted.Add ("user-agent", true);                    
+                       
+                       // see par 14 of RFC 2068 to see which header names
+                       // accept multiple values each separated by a comma
+                       multiValue = new Hashtable (CaseInsensitiveHashCodeProvider.Default,
+                                                   CaseInsensitiveComparer.Default);
+
+                       multiValue.Add ("accept", true);
+                       multiValue.Add ("accept-charset", true);
+                       multiValue.Add ("accept-encoding", true);
+                       multiValue.Add ("accept-language", true);
+                       multiValue.Add ("accept-ranges", true);
+                       multiValue.Add ("allow", true);
+                       multiValue.Add ("authorization", true);
+                       multiValue.Add ("cache-control", true);
+                       multiValue.Add ("connection", true);
+                       multiValue.Add ("content-encoding", true);
+                       multiValue.Add ("content-language", true);                      
+                       multiValue.Add ("expect", true);                
+                       multiValue.Add ("if-match", true);
+                       multiValue.Add ("if-none-match", true);
+                       multiValue.Add ("proxy-authenticate", true);
+                       multiValue.Add ("public", true);                        
+                       multiValue.Add ("range", true);
+                       multiValue.Add ("transfer-encoding", true);
+                       multiValue.Add ("upgrade", true);
+                       multiValue.Add ("vary", true);
+                       multiValue.Add ("via", true);
+                       multiValue.Add ("warning", true);
 
                        // Extra
-                       multiValue.Add ("set-cookie", true);\r
-                       multiValue.Add ("set-cookie2", true);\r
-               }\r
-               \r
-               // Constructors\r
-               \r
-               public WebHeaderCollection () { }       \r
-               \r
-               protected WebHeaderCollection (SerializationInfo serializationInfo, \r
-                                              StreamingContext streamingContext)\r
-               {\r
-                       // TODO: test for compatibility with ms.net\r
-                       int count = serializationInfo.GetInt32("count");\r
-                       for (int i = 0; i < count; i++) \r
-                               this.Add (serializationInfo.GetString ("k" + i),\r
-                                         serializationInfo.GetString ("v" + i));\r
-               }\r
-               \r
-               internal WebHeaderCollection (bool internallyCreated)\r
-               {       \r
-                       this.internallyCreated = internallyCreated;\r
-               }               \r
-               \r
-               // Methods\r
-               \r
-               public void Add (string header)\r
-               {\r
-                       if (header == null)\r
-                               throw new ArgumentNullException ("header");\r
-                       int pos = header.IndexOf (':');\r
-                       if (pos == -1)\r
-                               throw new ArgumentException ("no colon found", "header");                               \r
-                       this.Add (header.Substring (0, pos), \r
-                                 header.Substring (pos + 1));\r
-               }\r
-               \r
-               public override void Add (string name, string value)\r
-               {\r
-                       if (name == null)\r
-                               throw new ArgumentNullException ("name");\r
-                       if (internallyCreated && IsRestricted (name))\r
-                               throw new ArgumentException ("restricted header");\r
-                       this.AddWithoutValidate (name, value);\r
-               }\r
-\r
-               protected void AddWithoutValidate (string headerName, string headerValue)\r
-               {\r
-                       if (!IsHeaderName (headerName))\r
-                               throw new ArgumentException ("invalid header name: " + headerName, "headerName");\r
-                       if (headerValue == null)\r
-                               headerValue = String.Empty;\r
-                       else\r
-                               headerValue = headerValue.Trim ();\r
-                       if (!IsHeaderValue (headerValue))\r
-                               throw new ArgumentException ("invalid header value: " + headerValue, "headerValue");\r
-                       base.Add (headerName, headerValue);                     \r
-               }\r
+                       multiValue.Add ("set-cookie", true);
+                       multiValue.Add ("set-cookie2", true);
+               }
+               
+               // Constructors
+               
+               public WebHeaderCollection () { }       
+               
+               protected WebHeaderCollection (SerializationInfo serializationInfo, 
+                                              StreamingContext streamingContext)
+               {
+                       // TODO: test for compatibility with ms.net
+                       int count = serializationInfo.GetInt32("count");
+                       for (int i = 0; i < count; i++) 
+                               this.Add (serializationInfo.GetString ("k" + i),
+                                         serializationInfo.GetString ("v" + i));
+               }
+               
+               internal WebHeaderCollection (bool internallyCreated)
+               {       
+                       this.internallyCreated = internallyCreated;
+               }               
+               
+               // Methods
+               
+               public void Add (string header)
+               {
+                       if (header == null)
+                               throw new ArgumentNullException ("header");
+                       int pos = header.IndexOf (':');
+                       if (pos == -1)
+                               throw new ArgumentException ("no colon found", "header");                               
+                       this.Add (header.Substring (0, pos), 
+                                 header.Substring (pos + 1));
+               }
+               
+               public override void Add (string name, string value)
+               {
+                       if (name == null)
+                               throw new ArgumentNullException ("name");
+                       if (internallyCreated && IsRestricted (name))
+                               throw new ArgumentException ("This header must be modified with the appropiate property.");
+                       this.AddWithoutValidate (name, value);
+               }
+
+               protected void AddWithoutValidate (string headerName, string headerValue)
+               {
+                       if (!IsHeaderName (headerName))
+                               throw new ArgumentException ("invalid header name: " + headerName, "headerName");
+                       if (headerValue == null)
+                               headerValue = String.Empty;
+                       else
+                               headerValue = headerValue.Trim ();
+                       if (!IsHeaderValue (headerValue))
+                               throw new ArgumentException ("invalid header value: " + headerValue, "headerValue");
+                       base.Add (headerName, headerValue);                     
+               }
 
                public override string [] GetValues (string header)
                {
@@ -165,176 +166,232 @@ namespace System.Net
                        if (values == null || values.Length == 0)
                                return null;
 
+                       /*
+                       if (IsMultiValue (header)) {
+                               values = GetMultipleValues (values);
+                       }
+                       */
+
                        return values;
                }
 
-               public static bool IsRestricted (string headerName)\r
-               {\r
-                       if (headerName == null)\r
-                               throw new ArgumentNullException ("headerName");\r
-\r
-                       if (headerName == "") // MS throw nullexception here!\r
-                               throw new ArgumentException ("empty string", "headerName");\r
-\r
-                       return restricted.ContainsKey (headerName);\r
-               }\r
-\r
-               public override void OnDeserialization (object sender)\r
-               {\r
-               }\r
-\r
-               public override void Remove (string name)\r
-               {\r
-                       if (name == null)\r
-                               throw new ArgumentNullException ("name");\r
-                       if (internallyCreated && IsRestricted (name))\r
-                               throw new ArgumentException ("restricted header");\r
-                       base.Remove (name);\r
-               }\r
-\r
-               public override void Set (string name, string value)\r
-               {\r
-                       if (name == null)\r
-                               throw new ArgumentNullException ("name");\r
-                       if (internallyCreated && IsRestricted (name))\r
-                               throw new ArgumentException ("restricted header");\r
-                       if (!IsHeaderName (name))\r
-                               throw new ArgumentException ("invalid header name");\r
-                       if (value == null)\r
-                               value = String.Empty;\r
-                       else\r
-                               value = value.Trim ();\r
-                       if (!IsHeaderValue (value))\r
-                               throw new ArgumentException ("invalid header value");\r
-                       base.Set (name, value);                 \r
-               }\r
-\r
-               public byte[] ToByteArray ()\r
-               {\r
-                       return Encoding.UTF8.GetBytes(ToString ());\r
-               }\r
-\r
-               public override string ToString ()\r
-               {\r
-                       StringBuilder sb = new StringBuilder();\r
-\r
-                       int count = base.Count;\r
-                       for (int i = 0; i < count ; i++)\r
-                               sb.Append (GetKey (i))\r
-                                 .Append (": ")\r
-                                 .Append (Get (i))\r
-                                 .Append ("\r\n");\r
-                                 \r
-                       return sb.Append("\r\n").ToString();\r
-               }\r
-               \r
-               void ISerializable.GetObjectData (SerializationInfo serializationInfo,\r
-                                                 StreamingContext streamingContext)\r
-               {\r
-                       int count = base.Count;\r
-                       serializationInfo.AddValue ("count", count);\r
-                       for (int i = 0; i < count ; i++) {\r
-                               serializationInfo.AddValue ("k" + i, GetKey (i));\r
-                               serializationInfo.AddValue ("v" + i, Get (i));\r
-                       }\r
-               }\r
-               \r
-               // Internal Methods\r
-               \r
-               // With this we don't check for invalid characters in header. See bug #55994.\r
-               internal void SetInternal (string header)\r
-               {\r
-                       int pos = header.IndexOf (':');\r
-                       if (pos == -1)\r
-                               throw new ArgumentException ("no colon found", "header");                               \r
-\r
-                       SetInternal (header.Substring (0, pos), header.Substring (pos + 1));\r
-               }\r
-\r
-               internal void SetInternal (string name, string value)\r
-               {\r
-                       if (value == null)\r
-                               value = String.Empty;\r
-                       else\r
-                               value = value.Trim ();\r
-                       if (!IsHeaderValue (value))\r
-                               throw new ArgumentException ("invalid header value");\r
-\r
+               /* Now i wonder why this is here...
+               static string [] GetMultipleValues (string [] values)
+               {
+                       ArrayList mvalues = new ArrayList (values.Length);
+                       StringBuilder sb = null;
+                       for (int i = 0; i < values.Length; ++i) {
+                               string val = values [i];
+                               if (val.IndexOf (',') == -1) {
+                                       mvalues.Add (val);
+                                       continue;
+                               }
+
+                               if (sb == null)
+                                       sb = new StringBuilder ();
+
+                               bool quote = false;
+                               for (int k = 0; k < val.Length; k++) {
+                                       char c = val [k];
+                                       if (c == '"') {
+                                               quote = !quote;
+                                       } else if (!quote && c == ',') {
+                                               mvalues.Add (sb.ToString ().Trim ());
+                                               sb.Length = 0;
+                                               continue;
+                                       }
+                                       sb.Append (c);
+                               }
+
+                               if (sb.Length > 0) {
+                                       mvalues.Add (sb.ToString ().Trim ());
+                                       sb.Length = 0;
+                               }
+                       }
+
+                       return (string []) mvalues.ToArray (typeof (string));
+               }
+               */
+
+               public static bool IsRestricted (string headerName)
+               {
+                       if (headerName == null)
+                               throw new ArgumentNullException ("headerName");
+
+                       if (headerName == "") // MS throw nullexception here!
+                               throw new ArgumentException ("empty string", "headerName");
+
+                       return restricted.ContainsKey (headerName);
+               }
+
+               public override void OnDeserialization (object sender)
+               {
+               }
+
+               public override void Remove (string name)
+               {
+                       if (name == null)
+                               throw new ArgumentNullException ("name");
+                       if (internallyCreated && IsRestricted (name))
+                               throw new ArgumentException ("restricted header");
+                       base.Remove (name);
+               }
+
+               public override void Set (string name, string value)
+               {
+                       if (name == null)
+                               throw new ArgumentNullException ("name");
+                       if (internallyCreated && IsRestricted (name))
+                               throw new ArgumentException ("restricted header");
+                       if (!IsHeaderName (name))
+                               throw new ArgumentException ("invalid header name");
+                       if (value == null)
+                               value = String.Empty;
+                       else
+                               value = value.Trim ();
+                       if (!IsHeaderValue (value))
+                               throw new ArgumentException ("invalid header value");
+                       base.Set (name, value);                 
+               }
+
+               public byte[] ToByteArray ()
+               {
+                       return Encoding.UTF8.GetBytes(ToString ());
+               }
+
+               public override string ToString ()
+               {
+                       StringBuilder sb = new StringBuilder();
+
+                       int count = base.Count;
+                       for (int i = 0; i < count ; i++)
+                               sb.Append (GetKey (i))
+                                 .Append (": ")
+                                 .Append (Get (i))
+                                 .Append ("\r\n");
+                                 
+                       return sb.Append("\r\n").ToString();
+               }
+               
+               void ISerializable.GetObjectData (SerializationInfo serializationInfo,
+                                                 StreamingContext streamingContext)
+               {
+                       int count = base.Count;
+                       serializationInfo.AddValue ("count", count);
+                       for (int i = 0; i < count ; i++) {
+                               serializationInfo.AddValue ("k" + i, GetKey (i));
+                               serializationInfo.AddValue ("v" + i, Get (i));
+                       }
+               }
+               
+               // Internal Methods
+               
+               // With this we don't check for invalid characters in header. See bug #55994.
+               internal void SetInternal (string header)
+               {
+                       int pos = header.IndexOf (':');
+                       if (pos == -1)
+                               throw new ArgumentException ("no colon found", "header");                               
+
+                       SetInternal (header.Substring (0, pos), header.Substring (pos + 1));
+               }
+
+               internal void SetInternal (string name, string value)
+               {
+                       if (value == null)
+                               value = String.Empty;
+                       else
+                               value = value.Trim ();
+                       if (!IsHeaderValue (value))
+                               throw new ArgumentException ("invalid header value");
+
                        if (IsMultiValue (name)) {
                                base.Add (name, value);
                        } else {
-                               base.Remove (name);\r
-                               base.Set (name, value); \r
+                               base.Remove (name);
+                               base.Set (name, value); 
                        }
-               }\r
-               \r
-               internal void RemoveInternal (string name)\r
-               {\r
-                       if (name == null)\r
-                               throw new ArgumentNullException ("name");\r
-                       base.Remove (name);\r
-               }               \r
-               \r
-               // Private Methods\r
-               \r
-               internal static bool IsMultiValue (string headerName)\r
-               {\r
-                       if (headerName == null || headerName == "")\r
-                               return false;\r
-\r
-                       return multiValue.ContainsKey (headerName);\r
-               }               \r
-               \r
-               internal static bool IsHeaderValue (string value)\r
-               {\r
-                       // TEXT any 8 bit value except CTL's (0-31 and 127)\r
-                       //      but including \r\n space and \t\r
-                       //      after a newline at least one space or \t must follow\r
-                       //      certain header fields allow comments ()\r
-                               \r
-                       int len = value.Length;\r
-                       for (int i = 0; i < len; i++) {                 \r
-                               char c = value [i];\r
-                               if (c == 127)\r
-                                       return false;\r
-                               if (c < 0x20 && (c != '\r' && c != '\n' && c != '\t'))\r
-                                       return false;\r
-                               if (c == '\n' && ++i < len) {\r
-                                       c = value [i];\r
-                                       if (c != ' ' && c != '\t')\r
-                                               return false;\r
-                               }\r
-                       }\r
-                       \r
-                       return true;\r
-               }\r
-               \r
-               internal static bool IsHeaderName (string name)\r
-               {\r
-                       // token          = 1*<any CHAR except CTLs or tspecials>\r
-                       // tspecials      = "(" | ")" | "<" | ">" | "@"\r
-                       //                | "," | ";" | ":" | "\" | <">\r
-                       //                | "/" | "[" | "]" | "?" | "="\r
-                       //                | "{" | "}" | SP | HT\r
-                       \r
-                       if (name == null || name.Length == 0)\r
-                               return false;\r
-\r
-                       int len = name.Length;\r
-                       for (int i = 0; i < len; i++) {                 \r
-                               char c = name [i];\r
-                               if (c < 0x20 || c >= 0x7f)\r
-                                       return false;\r
-                       }\r
-                       \r
-                       return name.IndexOfAny (tspecials) == -1;\r
-               }\r
-\r
-               private static char [] tspecials = \r
-                               new char [] {'(', ')', '<', '>', '@',\r
-                                            ',', ';', ':', '\\', '"',\r
-                                            '/', '[', ']', '?', '=',\r
-                                            '{', '}', ' ', '\t'};\r
-                                                       \r
-       }\r
-}\r
+               }
+
+               internal void RemoveAndAdd (string name, string value)
+               {
+                       if (value == null)
+                               value = String.Empty;
+                       else
+                               value = value.Trim ();
+
+                       base.Remove (name);
+                       base.Set (name, value);
+               }
+
+               internal void RemoveInternal (string name)
+               {
+                       if (name == null)
+                               throw new ArgumentNullException ("name");
+                       base.Remove (name);
+               }               
+               
+               // Private Methods
+               
+               internal static bool IsMultiValue (string headerName)
+               {
+                       if (headerName == null || headerName == "")
+                               return false;
+
+                       return multiValue.ContainsKey (headerName);
+               }               
+               
+               internal static bool IsHeaderValue (string value)
+               {
+                       // TEXT any 8 bit value except CTL's (0-31 and 127)
+                       //      but including \r\n space and \t
+                       //      after a newline at least one space or \t must follow
+                       //      certain header fields allow comments ()
+                               
+                       int len = value.Length;
+                       for (int i = 0; i < len; i++) {                 
+                               char c = value [i];
+                               if (c == 127)
+                                       return false;
+                               if (c < 0x20 && (c != '\r' && c != '\n' && c != '\t'))
+                                       return false;
+                               if (c == '\n' && ++i < len) {
+                                       c = value [i];
+                                       if (c != ' ' && c != '\t')
+                                               return false;
+                               }
+                       }
+                       
+                       return true;
+               }
+               
+               internal static bool IsHeaderName (string name)
+               {
+                       // token          = 1*<any CHAR except CTLs or tspecials>
+                       // tspecials      = "(" | ")" | "<" | ">" | "@"
+                       //                | "," | ";" | ":" | "\" | <">
+                       //                | "/" | "[" | "]" | "?" | "="
+                       //                | "{" | "}" | SP | HT
+                       
+                       if (name == null || name.Length == 0)
+                               return false;
+
+                       int len = name.Length;
+                       for (int i = 0; i < len; i++) {                 
+                               char c = name [i];
+                               if (c < 0x20 || c >= 0x7f)
+                                       return false;
+                       }
+                       
+                       return name.IndexOfAny (tspecials) == -1;
+               }
+
+               private static char [] tspecials = 
+                               new char [] {'(', ')', '<', '>', '@',
+                                            ',', ';', ':', '\\', '"',
+                                            '/', '[', ']', '?', '=',
+                                            '{', '}', ' ', '\t'};
+                                                       
+       }
+}
+