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
  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             print ("CACHE look for ==%s==\n", fname);
  35             if (cache.has_key(fname)) {
  36                 print ("CACHE got  %s\n", fname);
  37                 return cache.get(fname);
  38             }
  39             print ("CACHE create %s\n", fname);
  40
  41             var el = new  FakeServerCache(fname);
  42
  43             cache.set(fname, el);
  44             return el;
  45         }
  46         // called onload to clear the temporary cached file..
  47         public static void remove(string fname) {
  48             if (cache == null) {
  49                 return;
  50             }
  51             if (!cache.has_key(fname)) {
  52                 return;
  53             }
  54
  55
  56             FakeServerCache v;
  57             print("CACHE delete %s\n", this.fname);
  58             cache.unset(fname, out v);
  59
  60
  61
  62         }
  63
  64         public static FakeServerCache factory_with_data(string data) {
  65              if (cache == null) {
  66                 cache = new Gee.HashMap<string,FakeServerCache>();
  67            }
  68             var el = new  FakeServerCache.with_data(data);
  69             print("CACHE - store %s\n", el.fname);
  70              cache.set(el.fname, el);
  71             return el;
  72         }
  73
  74         public FakeServerCache.with_data( string data ) {
  75             this.fname = "/" + GLib.Checksum.compute_for_string(GLib.ChecksumType.MD5, data, data.length) + ".js";
  76             this.data = data;
  77             this.content_type = "text/javascript";
  78             this.size= data.length;
  79
  80
  81         }
  82
  83         public FakeServerCache( string fname ) {
  84
  85                 this.fname = fname;
  86
  87
  88
  89                 var  file = File.new_for_path ( GLib.Environment.get_home_dir() + "/gitlive" + fname);
  90                 if (!file.query_exists()) {
  91                     this.data = "";
  92                     this.content_type = "";
  93                     this.size = 0;
  94                     return;
  95                 }
  96                  var info = file.query_info(
  97                                  "standard::*",
  98                                 FileQueryInfoFlags.NONE
  99                 );
 100             this.content_type = info.get_content_type();
 101             this.size = info.get_size();
 102             string data;
 103             size_t length;
 104             try {
 105                 GLib.FileUtils.get_contents(file.get_path(), out data, out length);
 106             } catch (Error e) {
 107                 this.data = "";
 108                 this.size = 0;
 109                  this.content_type = "";
 110                 return;
 111             }
 112
 113             this.data = data;
 114
 115             print("FakeServerCache :%s, %s (%s/%d)\n", fname ,
 116                   this.content_type, this.size.to_string(), this.data.length);
 117
 118
 119         }
 120
 121
 122         public void run(WebKit.URISchemeRequest request, Cancellable? cancellable)
 123         {
 124             var stream =  new GLib.MemoryInputStream.from_data (this.data.data,  GLib.free);
 125                 request.finish(stream,
 126                          this.size,
 127                          this.content_type);
 128
 129
 130
 131             return;
 132
 133         }
 134 }
 135
 136 public class FakeServer : Object
 137 {
 138         WebKit.WebView view;
 139
 140         public FakeServer(WebKit.WebView wkview)
 141         {
 142                 this.view = wkview;
 143
 144
 145                 //
 146
 147
 148         // Hook up signals.
 149
 150         //this.view.resource_load_started.connect(on_resource_request_starting);
 151         //this.view.navigation_policy_decision_requested.connect(on_navigation_policy_decision_requested);
 152         //this.view.new_window_policy_decision_requested.connect(on_navigation_policy_decision_requested);
 153
 154          //
 155         var cx = WebKit.WebContext.get_default();
 156         //var cx = this.view.get_context();
 157         cx.register_uri_scheme("xhttp",  serve);
 158         cx.set_cache_model (WebKit.CacheModel.DOCUMENT_VIEWER);
 159        // = crash  cx.set_process_model (WebKit.ProcessModel.MULTIPLE_SECONDARY_PROCESSES );
 160     }
 161
 162
 163     public void serve(WebKit.URISchemeRequest request)
 164     {
 165                 // request is URISchemeRequest
 166
 167                 print("REQ: %s\n",request.get_path());
 168                 var cdata = FakeServerCache.factory(request.get_path());
 169
 170                 if (cdata.size < 1 ) {
 171                         print("Skip file missing = %s/gitlive%s\n", GLib.Environment.get_home_dir() , request.get_path());
 172                         request.finish_error(new FakeServerError.FILE_DOES_NOT_EXIST ("My error msg"));
 173                         return;
 174                 }
 175
 176                 print("Send :%s, %s (%s/%d)", request.get_path(),
 177                       cdata.content_type, cdata.size.to_string(), cdata.data.length);
 178                 cdata.run(request,    null);
 179
 180         }
 181
 182
 183 }