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         public string fname;
  23         public string data;
  24         public string content_type;
  25         public int64 size;
  26         public bool delete_after;
  27
  28         public static Gee.HashMap<string,FakeServerCache> cache;
  29
  30         public static FakeServerCache factory(string fname)
  31         {
  32             if (cache == null) {
  33                 cache = new Gee.HashMap<string,FakeServerCache>();
  34            }
  35             if (cache.has_key(fname)) {
  36                 return cache.get(fname);
  37             }
  38             var el = new  FakeServerCache(fname);
  39
  40             cache.set(fname, el);
  41             return el;
  42         }
  43
  44         public static FakeServerCache factory_with_data(string data) {
  45              if (cache == null) {
  46                 cache = new Gee.HashMap<string,FakeServerCache>();
  47            }
  48             var el = new  FakeServerCache.with_data(data);
  49              cache.set(el.fname, el);
  50         }
  51
  52         public FakeServerCache.with_data( string data ) {
  53             this.fname = GLib.Checksum.compute_for_string(GLib.ChecksumType.MD5, data, data.length) + ".js";
  54             this.data = data;
  55             this.content_type = "text/javascript";
  56             this.size= data.length;
  57             this.delete_after = true;
  58
  59         }
  60
  61         public FakeServerCache( string fname ) {
  62                this.delete_after = false;
  63                 this.fname = fname;
  64
  65
  66
  67                 var  file = File.new_for_path ( GLib.Environment.get_home_dir() + "/gitlive" + fname);
  68                 if (!file.query_exists()) {
  69                     this.data = "";
  70                     this.content_type = "";
  71                     this.size = 0;
  72                     return;
  73                 }
  74                  var info = file.query_info(
  75                                  "standard::*",
  76                                 FileQueryInfoFlags.NONE
  77                 );
  78             this.content_type = info.get_content_type();
  79             this.size = info.get_size();
  80             string data;
  81             size_t length;
  82             try {
  83                 GLib.FileUtils.get_contents(file.get_path(), out data, out length);
  84             } catch (Error e) {
  85                 this.data = "";
  86                 this.size = 0;
  87                  this.content_type = "";
  88                 return;
  89             }
  90
  91             this.data = data;
  92
  93             print("FakeServerCache :%s, %s (%s/%d)\n", fname ,
  94                   this.content_type, this.size.to_string(), this.data.length);
  95
  96
  97         }
  98
  99
 100         public void run(WebKit.URISchemeRequest request, Cancellable? cancellable)
 101         {
 102             var stream =  new GLib.MemoryInputStream.from_data (this.data.data,  GLib.free);
 103                 request.finish(stream,
 104                          this.size,
 105                          this.content_type);
 106
 107             if (this.delete_after) {
 108                 FakeServerCache v;
 109                 cache.unset(this.fname, out v);
 110             }
 111
 112
 113             return;
 114
 115         }
 116 }
 117
 118 public class FakeServer : Object
 119 {
 120         WebKit.WebView view;
 121
 122         public FakeServer(WebKit.WebView wkview)
 123         {
 124                 this.view = wkview;
 125
 126
 127                 //
 128
 129
 130         // Hook up signals.
 131
 132         //this.view.resource_load_started.connect(on_resource_request_starting);
 133         //this.view.navigation_policy_decision_requested.connect(on_navigation_policy_decision_requested);
 134         //this.view.new_window_policy_decision_requested.connect(on_navigation_policy_decision_requested);
 135
 136          //
 137         var cx = WebKit.WebContext.get_default();
 138         //var cx = this.view.get_context();
 139         cx.register_uri_scheme("xhttp",  serve);
 140         cx.set_cache_model (WebKit.CacheModel.DOCUMENT_VIEWER);
 141        // = crash  cx.set_process_model (WebKit.ProcessModel.MULTIPLE_SECONDARY_PROCESSES );
 142     }
 143
 144
 145     public void serve(WebKit.URISchemeRequest request)
 146     {
 147                 // request is URISchemeRequest
 148
 149                 print("REQ: %s\n",request.get_path());
 150                 var cdata = FakeServerCache.factory(request.get_path());
 151
 152                 if (cdata.size < 1 ) {
 153                         print("Skip file missing = %s/gitlive%s\n", GLib.Environment.get_home_dir() , request.get_path());
 154                         request.finish_error(new FakeServerError.FILE_DOES_NOT_EXIST ("My error msg"));
 155                         return;
 156                 }
 157
 158                 print("Send :%s, %s (%s/%d)", request.get_path(),
 159                       cdata.content_type, cdata.size.to_string(), cdata.data.length);
 160                 cdata.run(request,    null);
 161
 162         }
 163
 164
 165 }