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             print("CACHE - store %s\n", el.fname);
  50              cache.set(el.fname, el);
  51             return el;
  52         }
  53
  54         public FakeServerCache.with_data( string data ) {
  55             this.fname = "/" + GLib.Checksum.compute_for_string(GLib.ChecksumType.MD5, data, data.length) + ".js";
  56             this.data = data;
  57             this.content_type = "text/javascript";
  58             this.size= data.length;
  59             this.delete_after = true;
  60
  61         }
  62
  63         public FakeServerCache( string fname ) {
  64                this.delete_after = false;
  65                 this.fname = fname;
  66
  67
  68
  69                 var  file = File.new_for_path ( GLib.Environment.get_home_dir() + "/gitlive" + fname);
  70                 if (!file.query_exists()) {
  71                     this.data = "";
  72                     this.content_type = "";
  73                     this.size = 0;
  74                     return;
  75                 }
  76                  var info = file.query_info(
  77                                  "standard::*",
  78                                 FileQueryInfoFlags.NONE
  79                 );
  80             this.content_type = info.get_content_type();
  81             this.size = info.get_size();
  82             string data;
  83             size_t length;
  84             try {
  85                 GLib.FileUtils.get_contents(file.get_path(), out data, out length);
  86             } catch (Error e) {
  87                 this.data = "";
  88                 this.size = 0;
  89                  this.content_type = "";
  90                 return;
  91             }
  92
  93             this.data = data;
  94
  95             print("FakeServerCache :%s, %s (%s/%d)\n", fname ,
  96                   this.content_type, this.size.to_string(), this.data.length);
  97
  98
  99         }
 100
 101
 102         public void run(WebKit.URISchemeRequest request, Cancellable? cancellable)
 103         {
 104             var stream =  new GLib.MemoryInputStream.from_data (this.data.data,  GLib.free);
 105                 request.finish(stream,
 106                          this.size,
 107                          this.content_type);
 108
 109             if (this.delete_after) {
 110                 FakeServerCache v;
 111                 cache.unset(this.fname, out v);
 112             }
 113
 114
 115             return;
 116
 117         }
 118 }
 119
 120 public class FakeServer : Object
 121 {
 122         WebKit.WebView view;
 123
 124         public FakeServer(WebKit.WebView wkview)
 125         {
 126                 this.view = wkview;
 127
 128
 129                 //
 130
 131
 132         // Hook up signals.
 133
 134         //this.view.resource_load_started.connect(on_resource_request_starting);
 135         //this.view.navigation_policy_decision_requested.connect(on_navigation_policy_decision_requested);
 136         //this.view.new_window_policy_decision_requested.connect(on_navigation_policy_decision_requested);
 137
 138          //
 139         var cx = WebKit.WebContext.get_default();
 140         //var cx = this.view.get_context();
 141         cx.register_uri_scheme("xhttp",  serve);
 142         cx.set_cache_model (WebKit.CacheModel.DOCUMENT_VIEWER);
 143        // = crash  cx.set_process_model (WebKit.ProcessModel.MULTIPLE_SECONDARY_PROCESSES );
 144     }
 145
 146
 147     public void serve(WebKit.URISchemeRequest request)
 148     {
 149                 // request is URISchemeRequest
 150
 151                 print("REQ: %s\n",request.get_path());
 152                 var cdata = FakeServerCache.factory(request.get_path());
 153
 154                 if (cdata.size < 1 ) {
 155                         print("Skip file missing = %s/gitlive%s\n", GLib.Environment.get_home_dir() , request.get_path());
 156                         request.finish_error(new FakeServerError.FILE_DOES_NOT_EXIST ("My error msg"));
 157                         return;
 158                 }
 159
 160                 print("Send :%s, %s (%s/%d)", request.get_path(),
 161                       cdata.content_type, cdata.size.to_string(), cdata.data.length);
 162                 cdata.run(request,    null);
 163
 164         }
 165
 166
 167 }