git.roojs.org Git - app.Builder.js/blob - src/Builder4/FakeServer.vala

   1 /**
   2  * Originally this was supposed to intercept http calls and redirect them
   3  * but that is not supported in webkit2 (without using the extension api)
   4  *
   5  * so for now we have modified our server to serve use a base url of xhttp:
   6  *
   7  * so all relative urls are based on that
   8  *
   9  * Idea is to serve the files from the file system, so no need to setup apache etc...
  10  * This should work for the static content like css / javascript etc.. but
  11  * will cause issues with 'dynamic' xhr files (eg. the php stuff)
  12  *
  13  * the idea is nicked from geary.
  14  *
  15  */
  16 public errordomain FakeServerError {
  17         FILE_DOES_NOT_EXIST
  18 }
  19
  20 public class FakeServerCache : Object
  21 {
  22
  23         public string data;
  24         public string content_type;
  25         public int64 size;
  26
  27         public static Gee.HashMap<string,FakeServerCache> cache;
  28
  29         public static FakeServerCache factory(string fname)
  30         {
  31             if (cache == null) {
  32                 cache = new Gee.HashMap<string,FakeServerCache>();
  33             }
  34             if (cache.has_key(fname)) {
  35                 return cache.get(fname);
  36             }
  37             var el = new  FakeServerCache(fname);
  38
  39
  40             cache.set(fname, el);
  41             return el;
  42         }
  43
  44
  45         public FakeServerCache( string fname) {
  46                 var  file = File.new_for_path ( GLib.Environment.get_home_dir() + "/gitlive" + fname);
  47                 if (!file.query_exists()) {
  48                     this.data = "";
  49                     this.content_type = "";
  50                     this.size = 0;
  51                     return;
  52                 }
  53                  var info = file.query_info(
  54                                  "standard::*",
  55                                 FileQueryInfoFlags.NONE
  56                 );
  57             this.content_type = info.get_content_type();
  58             this.size = info.get_size();
  59             string data;
  60             size_t length;
  61             GLib.FileUtils.get_contents(file.get_path(), out data, out length);
  62
  63             this.data = data;
  64
  65             print("FakeServerCache :%s, %s (%s/%d)\n", fname ,
  66                   this.content_type, this.size.to_string(), this.data.length);
  67
  68
  69         }
  70 }
  71
  72 public class FakeServer : Object
  73 {
  74         WebKit.WebView view;
  75
  76         public FakeServer(WebKit.WebView wkview)
  77         {
  78                 this.view = wkview;
  79
  80
  81                 //
  82
  83
  84         // Hook up signals.
  85
  86         //this.view.resource_load_started.connect(on_resource_request_starting);
  87         //this.view.navigation_policy_decision_requested.connect(on_navigation_policy_decision_requested);
  88         //this.view.new_window_policy_decision_requested.connect(on_navigation_policy_decision_requested);
  89
  90          //
  91         var cx = this.view.get_context();
  92         cx.register_uri_scheme("xhttp",  serve);
  93         cx.set_cache_model (WebKit.CacheModel.DOCUMENT_VIEWER);
  94
  95     }
  96
  97
  98     public void serve(WebKit.URISchemeRequest request)
  99     {
 100                 // request is URISchemeRequest
 101
 102                 print("REQ: %s\n",request.get_path());
 103                 var cdata = FakeServerCache.factory(request.get_path());
 104
 105                 if (cdata.size < 1 ) {
 106                         print("Skip file missing = %s/gitlive%s\n", GLib.Environment.get_home_dir() , request.get_path());
 107                         request.finish_error(new FakeServerError.FILE_DOES_NOT_EXIST ("My error msg"));
 108                         return;
 109                 }
 110                 print("Send :%s, %s (%s/%d)", request.get_path(),
 111                       cdata.content_type, cdata.size.to_string(), cdata.data.length);
 112
 113                 var stream = new GLib.MemoryInputStream.from_data (cdata.data.data,  GLib.free);
 114
 115                 // we could cache these memory streams... so no need to keep reading from disk...
 116                 // then what happens if file get's updated - neet to check the data against the cache..
 117
 118
 119
 120
 121                 request.finish (  stream, cdata.size  , cdata.content_type);
 122                 //stream.close();
 123         }
 124
 125     private async InputStream? run_impl(Cancellable? cancellable) throws GLib.Error
 126     {
 127         SourceFunc callback = run_impl.callback;
 128         InputStream? ret = null;
 129         new Thread<void*>("gitg-gtk-diff-view", () => {
 130                 // Actually do it
 131                 try
 132                 {
 133                         ret = this.run_async(cancellable);
 134                 }
 135                 catch (Error e)
 136                 {
 137                         err = e;
 138                 }
 139
 140                 // Schedule the callback in idle
 141                 Idle.add((owned)callback);
 142                 return null;
 143         });
 144
 145         // Wait for it to finish, yield to caller
 146         yield;
 147
 148         if (err != null)
 149         {
 150                 throw err;
 151         }
 152
 153         // Return the input stream
 154         return ret;
 155 }
 156 }