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