mcs/class/System.Web.Services/System.Web.Services.Protocols/SoapDocumentationHandler.cs

   1 //
   2 // System.Web.Services.Protocols.SoapDocumentationHandler.cs
   3 //
   4 // Author:
   5 //   Lluis Sanchez Gual (lluis@ximian.com)
   6 //
   7 // Copyright (C) Ximian, Inc. 2003
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System;
  32 using System.Web;
  33 using System.IO;
  34 using System.Globalization;
  35 using System.Xml;
  36 using System.Text;
  37 using System.Xml.Serialization;
  38 using System.Xml.Schema;
  39 using System.Web.Services.Description;
  40 using System.Web.Services.Discovery;
  41 using System.Web.Services.Configuration;
  42 using System.Configuration;
  43 using System.CodeDom;
  44 using System.CodeDom.Compiler;
  45 using Microsoft.CSharp;
  46 using System.Web.UI;
  47
  48 namespace System.Web.Services.Protocols
  49 {
  50         internal class SoapDocumentationHandler: WebServiceHandler
  51         {
  52                 SoapTypeStubInfo _typeStubInfo;
  53                 ServiceDescriptionCollection _descriptions;
  54                 XmlSchemas _schemas;
  55                 string _url;
  56                 IHttpHandler _pageHandler = null;
  57
  58                 public SoapDocumentationHandler (Type type, HttpContext context): base (type)
  59                 {
  60                         _url = context.Request.Url.ToString();
  61                         int i = _url.LastIndexOf ('?');
  62                         if (i != -1) _url = _url.Substring (0,i);
  63                         _typeStubInfo = (SoapTypeStubInfo) TypeStubManager.GetTypeStub (ServiceType, "Soap");
  64
  65                         HttpRequest req = context.Request;
  66                         string key = null;
  67                         if (req.QueryString.Count == 1) {
  68                                 key = req.QueryString.GetKey (0);
  69                                 if (key == null)
  70                                         key = req.QueryString [0];
  71
  72                                 if (key != null)
  73                                         key = key.ToLower (CultureInfo.InvariantCulture);
  74                         }
  75
  76                         if (key == "wsdl" || key == "schema" || key == "code" || key == "disco")
  77                                 return;
  78
  79 #if NET_2_0
  80                         string help = WebServicesSection.Instance.WsdlHelpGenerator.Href;
  81                         string path = Path.GetDirectoryName (ConfigurationManager.OpenMachineConfiguration().FilePath);
  82 #else
  83                         string help = WSConfig.Instance.WsdlHelpPage;
  84                         string path = Path.GetDirectoryName (WSConfig.Instance.ConfigFilePath);
  85 #endif
  86                         string appPath = AppDomain.CurrentDomain.GetData (".appPath").ToString ();
  87                         string vpath;
  88                         if (path.StartsWith (appPath)) {
  89                                 vpath = path.Substring (appPath.Length);
  90                                 vpath = vpath.Replace ("\\", "/");
  91                         } else {
  92                                 vpath = "/";
  93                         }
  94
  95                         if (vpath.EndsWith ("/"))
  96                                 vpath += help;
  97                         else
  98                                 vpath += "/" + help;
  99
 100                         string physPath = Path.Combine (path, help);
 101
 102 #if !TARGET_JVM
 103                         if (!File.Exists (physPath))
 104                                 throw new InvalidOperationException ("Documentation page '" + physPath + "' not found");
 105 #endif
 106                         _pageHandler = PageParser.GetCompiledPageInstance (vpath, physPath, context);
 107
 108                 }
 109
 110                 internal IHttpHandler PageHandler {
 111                         get { return _pageHandler; }
 112                 }
 113
 114                 public override bool IsReusable
 115                 {
 116                         get { return false; }
 117                 }
 118
 119                 public override void ProcessRequest (HttpContext context)
 120                 {
 121                         if (_pageHandler != null)
 122                         {
 123                                 context.Items["wsdls"] = GetDescriptions ();
 124                                 context.Items["schemas"] = GetSchemas ();
 125                                 _pageHandler.ProcessRequest (context);
 126                         }
 127                         else
 128                         {
 129                                 HttpRequest req = context.Request;
 130                                 string key = req.QueryString.GetKey (0);
 131                                 if (key == null)
 132                                         key = req.QueryString [0];
 133
 134                                 if (key != null)
 135                                         key = key.ToLower (CultureInfo.InvariantCulture);
 136
 137                                 if (key  == "wsdl") GenerateWsdlDocument (context, req.QueryString ["wsdl"]);
 138                                 else if (key == "schema") GenerateSchema (context, req.QueryString ["schema"]);
 139 #if !TARGET_JVM //code generation is not supported
 140                                 else if (key == "code") GenerateCode (context, req.QueryString ["code"]);
 141 #else
 142                                 else if (key == "code") throw new Exception("Code generation is not supported.");
 143 #endif
 144                                 else if (key == "disco") GenerateDiscoDocument (context);
 145                                 else throw new Exception ("This should never happen");
 146                         }
 147                 }
 148
 149                 void GenerateWsdlDocument (HttpContext context, string wsdlId)
 150                 {
 151                         int di = 0;
 152                         if (wsdlId != null && wsdlId != "") di = int.Parse (wsdlId);
 153
 154                         context.Response.ContentType = "text/xml; charset=utf-8";
 155                         XmlTextWriter xtw = new XmlTextWriter (context.Response.OutputStream, new UTF8Encoding (false));
 156                         xtw.Formatting = Formatting.Indented;
 157                         GetDescriptions() [di].Write (xtw);
 158                 }
 159
 160                 void GenerateDiscoDocument (HttpContext context)
 161                 {
 162                         ServiceDescriptionCollection descs = GetDescriptions ();
 163
 164                         DiscoveryDocument doc = new DiscoveryDocument ();
 165                         ContractReference cref = new ContractReference ();
 166                         cref.Ref = _url + "?wsdl";
 167                         cref.DocRef = _url;
 168                         doc.References.Add (cref);
 169
 170                         foreach (ServiceDescription desc in descs)
 171                                 foreach (Service ser in desc.Services)
 172                                         foreach (Port port in ser.Ports)
 173                                         {
 174                                                 SoapAddressBinding sab = port.Extensions.Find (typeof(SoapAddressBinding)) as SoapAddressBinding;
 175                                                 if (sab != null)
 176                                                 {
 177                                                         System.Web.Services.Discovery.SoapBinding dsb = new System.Web.Services.Discovery.SoapBinding ();
 178                                                         dsb.Address = sab.Location;
 179                                                         dsb.Binding = port.Binding;
 180                                                         doc.AdditionalInfo.Add (dsb);
 181                                                 }
 182                                         }
 183
 184                         context.Response.ContentType = "text/xml; charset=utf-8";
 185                         XmlTextWriter xtw = new XmlTextWriter (context.Response.OutputStream, new UTF8Encoding (false));
 186                         xtw.Formatting = Formatting.Indented;
 187                         doc.Write (xtw);
 188                 }
 189
 190                 void GenerateSchema (HttpContext context, string schemaId)
 191                 {
 192                         int di = 0;
 193                         if (schemaId != null && schemaId != "") di = int.Parse (schemaId);
 194
 195                         context.Response.ContentType = "text/xml; charset=utf-8";
 196                         XmlTextWriter xtw = new XmlTextWriter (context.Response.OutputStream, new UTF8Encoding (false));
 197                         xtw.Formatting = Formatting.Indented;
 198                         GetSchemas() [di].Write (xtw);
 199                 }
 200
 201 #if !TARGET_JVM
 202                 void GenerateCode (HttpContext context, string langId)
 203                 {
 204                         context.Response.ContentType = "text/plain; charset=utf-8";
 205                         CodeNamespace codeNamespace = new CodeNamespace();
 206                         CodeCompileUnit codeUnit = new CodeCompileUnit();
 207
 208                         codeUnit.Namespaces.Add (codeNamespace);
 209
 210                         ServiceDescriptionImporter importer = new ServiceDescriptionImporter();
 211
 212                         foreach (ServiceDescription sd in GetDescriptions ())
 213                                 importer.AddServiceDescription(sd, null, null);
 214
 215                         foreach (XmlSchema sc in GetSchemas())
 216                                 importer.Schemas.Add (sc);
 217
 218                         importer.Import(codeNamespace, codeUnit);
 219
 220                         if (langId == null || langId == "") langId = "cs";
 221                         CodeDomProvider provider = GetProvider (langId);
 222                         ICodeGenerator generator = provider.CreateGenerator();
 223                         CodeGeneratorOptions options = new CodeGeneratorOptions();
 224
 225                         generator.GenerateCodeFromCompileUnit(codeUnit, context.Response.Output, options);
 226                 }
 227
 228                 private CodeDomProvider GetProvider(string langId)
 229                 {
 230                         // FIXME these should be loaded dynamically using reflection
 231                         CodeDomProvider provider;
 232
 233                         switch (langId.ToUpper())
 234                         {
 235                             case "CS":
 236                                     provider = new CSharpCodeProvider();
 237                                     break;
 238
 239                             default:
 240                                     throw new Exception("Unknown language: " + langId);
 241                         }
 242
 243                         return provider;
 244                 }
 245 #endif
 246
 247                 internal ServiceDescriptionCollection GetDescriptions ()
 248                 {
 249                         if (_descriptions == null)
 250                         {
 251                                 ServiceDescriptionReflector reflector = new ServiceDescriptionReflector ();
 252                                 reflector.Reflect (ServiceType,_url);
 253                                 _schemas = reflector.Schemas;
 254                                 _descriptions = reflector.ServiceDescriptions;
 255                         }
 256                         return _descriptions;
 257                 }
 258
 259                 internal XmlSchemas GetSchemas()
 260                 {
 261                         GetDescriptions();
 262                         return _schemas;
 263                 }
 264         }
 265 }