mcs/class/System/ReferenceSources/AutoWebProxyScriptEngine.cs

   1 using System.Collections;
   2 using System.Collections.Generic;
   3 using System.Text.RegularExpressions;
   4 #if !MONOTOUCH_WATCH
   5 using Mono.Net;
   6 #endif
   7
   8 namespace System.Net
   9 {
  10         class AutoWebProxyScriptEngine
  11         {
  12                 public AutoWebProxyScriptEngine (WebProxy proxy, bool useRegistry)
  13                 {
  14                 }
  15
  16                 public Uri AutomaticConfigurationScript { get; set; }
  17                 public bool AutomaticallyDetectSettings { get; set; }
  18
  19                 public bool GetProxies (Uri destination, out IList<string> proxyList)
  20                 {
  21                         int i = 0;
  22                         return GetProxies (destination, out proxyList, ref i);
  23                 }
  24
  25                 public bool GetProxies(Uri destination, out IList<string> proxyList, ref int syncStatus)
  26                 {
  27                         proxyList = null;
  28                         return false;
  29                 }
  30
  31                 public void Close ()
  32                 {
  33                 }
  34
  35                 public void Abort (ref int syncStatus)
  36                 {
  37                 }
  38
  39                 public void CheckForChanges ()
  40                 {
  41                 }
  42
  43 #if !MOBILE
  44                 public WebProxyData GetWebProxyData ()
  45                 {
  46                         WebProxyData data;
  47
  48                         // TODO: Could re-use some pieces from _AutoWebProxyScriptEngine.cs
  49                         if (IsWindows ()) {
  50                                 data = InitializeRegistryGlobalProxy ();
  51                                 if (data != null)
  52                                         return data;
  53                         }
  54
  55                         data = ReadEnvVariables ();
  56                         return data ?? new WebProxyData ();
  57                 }
  58
  59                 WebProxyData ReadEnvVariables ()
  60                 {
  61                         string address = Environment.GetEnvironmentVariable ("http_proxy") ?? Environment.GetEnvironmentVariable ("HTTP_PROXY");
  62
  63                         if (address != null) {
  64                                 try {
  65                                         if (!address.StartsWith ("http://"))
  66                                                 address = "http://" + address;
  67
  68                                         Uri uri = new Uri (address);
  69                                         IPAddress ip;
  70
  71                                         if (IPAddress.TryParse (uri.Host, out ip)) {
  72                                                 if (IPAddress.Any.Equals (ip)) {
  73                                                         UriBuilder builder = new UriBuilder (uri);
  74                                                         builder.Host = "127.0.0.1";
  75                                                         uri = builder.Uri;
  76                                                 } else if (IPAddress.IPv6Any.Equals (ip)) {
  77                                                         UriBuilder builder = new UriBuilder (uri);
  78                                                         builder.Host = "[::1]";
  79                                                         uri = builder.Uri;
  80                                                 }
  81                                         }
  82
  83                                         bool bBypassOnLocal = false;
  84                                         ArrayList al = new ArrayList ();
  85                                         string bypass = Environment.GetEnvironmentVariable ("no_proxy") ?? Environment.GetEnvironmentVariable ("NO_PROXY");
  86
  87                                         if (bypass != null) {
  88                                                 string[] bypassList = bypass.Split (new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
  89
  90                                                 foreach (string str in bypassList) {
  91                                                         if (str != "*.local")
  92                                                                 al.Add (str);
  93                                                         else
  94                                                                 bBypassOnLocal = true;
  95                                                 }
  96                                         }
  97
  98                                         return new WebProxyData {
  99                                                 proxyAddress = uri,
 100                                                 bypassOnLocal = bBypassOnLocal,
 101                                                 bypassList = CreateBypassList (al)
 102                                         };
 103                                 } catch (UriFormatException) {
 104                                 }
 105                         }
 106
 107                         return null;
 108                 }
 109
 110                 static bool IsWindows ()
 111                 {
 112                         return (int) Environment.OSVersion.Platform < 4;
 113                 }
 114
 115                 WebProxyData InitializeRegistryGlobalProxy ()
 116                 {
 117                         int iProxyEnable = (int)Microsoft.Win32.Registry.GetValue ("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings", "ProxyEnable", 0);
 118
 119                         if (iProxyEnable > 0) {
 120                                 string strHttpProxy = "";
 121                                 bool bBypassOnLocal = false;
 122                                 ArrayList al = new ArrayList ();
 123
 124                                 string strProxyServer = (string)Microsoft.Win32.Registry.GetValue ("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings", "ProxyServer", null);
 125                                 string strProxyOverrride = (string)Microsoft.Win32.Registry.GetValue ("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings", "ProxyOverride", null);
 126
 127                                 if (strProxyServer.Contains ("=")) {
 128                                         foreach (string strEntry in strProxyServer.Split (new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries))
 129                                                 if (strEntry.StartsWith ("http=")) {
 130                                                         strHttpProxy = strEntry.Substring (5);
 131                                                         break;
 132                                                 }
 133                                 } else strHttpProxy = strProxyServer;
 134
 135                                 if (strProxyOverrride != null) {
 136                                         string[] bypassList = strProxyOverrride.Split (new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
 137
 138                                         foreach (string str in bypassList) {
 139                                                 if (str != "<local>")
 140                                                         al.Add (str);
 141                                                 else
 142                                                         bBypassOnLocal = true;
 143                                         }
 144                                 }
 145
 146                                 return new WebProxyData {
 147                                         proxyAddress = ToUri (strHttpProxy),
 148                                         bypassOnLocal = bBypassOnLocal,
 149                                         bypassList = CreateBypassList (al)
 150                                 };
 151                         }
 152
 153                         return null;
 154                 }
 155
 156                 static Uri ToUri (string address)
 157                 {
 158                         if (address == null)
 159                                 return null;
 160
 161                         if (address.IndexOf ("://", StringComparison.Ordinal) == -1)
 162                                 address = "http://" + address;
 163
 164                         return new Uri (address);
 165                 }
 166
 167                 // Takes an ArrayList of fileglob-formatted strings and returns an array of Regex-formatted strings
 168                 static ArrayList CreateBypassList (ArrayList al)
 169                 {
 170                         string[] result = al.ToArray (typeof (string)) as string[];
 171                         for (int c = 0; c < result.Length; c++)
 172                         {
 173                                 result [c] = "^" +
 174                                         Regex.Escape (result [c]).Replace (@"\*", ".*").Replace (@"\?", ".") +
 175                                         "$";
 176                         }
 177                         return new ArrayList (result);
 178                 }
 179 #endif
 180         }
 181 }