Bind to JavaScriptCore. Serve files through embedded web server.

OpenRA.Launcher.Gtk/bridge.js

@@ -1,27 +0,0 @@
-window.external=new Object();
-window.external.do_ajax=function(uri)
-{
-    request = new XMLHttpRequest();
-    request.open("GET", uri, false);
-    try
-    {
-	request.send(null);
-    }
-    catch(err)
-    {
-    }
-    return request.responseText;
-};
-window.external.log=function(msg)
-{
-    window.external.do_ajax("http://localhost:48764/log?msg=" + escape(msg));
-};
-window.external.launchMod=function(mod)
-{
-    window.external.do_ajax("http://localhost:48764/launch?mod=" + mod);
-};
-window.external.existsInMod=function(file, mod)
-{
-
-    return window.external.do_ajax("http://localhost:48764/fileExists?mod=" + mod + "&file=" + escape(file));
-};

OpenRA.Launcher.Gtk/main.c

@@ -10,85 +10,82 @@
 #include <string.h>
 #include <gtk/gtk.h>
 #include <webkit/webkit.h>
+#include <JavaScriptCore/JavaScript.h>
 
 #include "server.h"
 
+#define JS_STR(str) JSStringCreateWithUTF8CString(str)
+#define JS_FUNC(ctx, callback) JSObjectMakeFunctionWithCallback(ctx, NULL, \
+						  callback)
+
 GtkWindow * window;
 WebKitWebView * browser;
 
-gboolean window_delete(GtkWidget * widget, GdkEvent * event, gpointer user_data)
+gboolean window_delete(GtkWidget * widget, GdkEvent * event, 
+		       gpointer user_data)
 {
   server_teardown();
   gtk_main_quit();
   return FALSE;
 }
 
-int get_file_uri(char const * filepath, char ** uri)
+JSValueRef js_log(JSContextRef ctx, JSObjectRef func, JSObjectRef this,
+		  size_t argc, const JSValueRef argv[],
+		  JSValueRef * exception)
 {
-  FILE * output;
+  JSValueRef return_value = JSValueMakeNull(ctx);
+  if (argc < 1)
+  {
+    *exception = JSValueMakeString(ctx, JS_STR("Not enough args"));
+    return return_value;
+  }
+
+  if (JSValueIsString(ctx, argv[0]))
+  {
     char buffer[1024];
-  size_t buffer_len;
-
-  sprintf(buffer, "readlink -f %s", filepath);
-
-  output = popen(buffer, "r");
-
-  if (!output)
-  {
-    g_warning("Could not find absolute path for %s", filepath);
-    return FALSE;
+    JSStringRef s = JSValueToStringCopy(ctx, argv[0], NULL);
+    JSStringGetUTF8CString(s, buffer, 1024);
+    g_message("JS Log: %s", buffer);
+    return return_value;
   }
-
-  fgets(buffer, sizeof(buffer), output);
-
-  pclose(output);
-
-  buffer_len = strlen(buffer);
-  buffer[buffer_len - 1] = '\0';
-
-  *uri = g_filename_to_uri(buffer, NULL, NULL);
-
-  if (!*uri)
+  else
   {
-    g_warning("Could not convert %s to URI", buffer);
-    return FALSE;
+    *exception = JSValueMakeString(ctx, JS_STR("Tried to log something other than a string"));
+    return return_value;
   }
-
-  return TRUE;
 }
 
-int get_bridge_script(char ** script)
+JSValueRef js_exists_in_mod(JSContextRef ctx, JSObjectRef func, 
+			  JSObjectRef this, size_t argc, 
+			  const JSValueRef argv[], JSValueRef * exception)
 {
-  FILE * f;
-  long fileSize;
-  char * buffer;
-  size_t result;
+  return JSValueMakeNumber(ctx, 1);
+}
 
-  f = fopen("bridge.js", "r");
+void bind_js_bridge(WebKitWebView * view, WebKitWebFrame * frame,
+		    gpointer context, gpointer window_object,
+		    gpointer user_data)
+{
+  JSGlobalContextRef js_ctx;
+  JSObjectRef window_obj, external_obj, 
+    log_function, exists_in_mod_function;
   
-  if (!f) 
-  { 
-    g_critical("Could not open bridge.js"); 
-    return FALSE; 
-  }
+  js_ctx = (JSGlobalContextRef)context;
 
-  fseek(f, 0, SEEK_END);
-  fileSize = ftell(f);
-  rewind(f);
-
-  buffer = (char *) malloc(sizeof(char) * fileSize);
-  result = fread(buffer, 1, fileSize, f);
-
-  fclose(f);
-
-  *script = buffer;
-  return TRUE;
+  external_obj = JSObjectMake(js_ctx, NULL, NULL);
+  log_function = JS_FUNC(js_ctx, js_log);
+  exists_in_mod_function = JS_FUNC(js_ctx, js_exists_in_mod);
+  window_obj = (JSObjectRef)window_object;
+  JSObjectSetProperty(js_ctx, window_obj, JS_STR("external"),
+		      external_obj, 0, NULL);
+  JSObjectSetProperty(js_ctx, external_obj, JS_STR("log"), 
+		      log_function, 0, NULL);
+  JSObjectSetProperty(js_ctx, external_obj, JS_STR("existsInMod"),
+		      exists_in_mod_function, 0, NULL);
 } 
 
 int main(int argc, char ** argv)
 {
-  char * uri, * script;
-  
   server_init(48764);
   
   gtk_init(&argc, &argv);
@@ -98,24 +95,13 @@ int main(int argc, char ** argv)
   gtk_window_set_default_size(window, 800, 600);
 
   browser = WEBKIT_WEB_VIEW(webkit_web_view_new());
+  g_signal_connect(browser, "window-object-cleared", 
+		   G_CALLBACK(bind_js_bridge), 0);
 
   gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(browser));
 
-  if (!get_bridge_script(&script))
-    return 1;
-
-  webkit_web_view_execute_script(browser, script);
-
-  free(script);
-
-  if (!get_file_uri("../mods/cnc/mod.html", &uri))
-  {
-    return 1;
-  }
-
-  webkit_web_view_load_uri(browser, uri);
-
-  free(uri);
+  webkit_web_view_load_uri(browser, 
+			   "http://localhost:48764/mods/cnc/mod.html");
 
   gtk_widget_show_all(GTK_WIDGET(window));
   g_signal_connect(window, "delete-event", G_CALLBACK(window_delete), 0);

OpenRA.Launcher.Gtk/server.c

@@ -6,12 +6,13 @@
  * see LICENSE.
  */
 #include <stdio.h>
-#include <stdlib.h>
 #include <sys/types.h>
 #include <sys/socket.h>
-#include <unistd.h>
+#include <sys/stat.h>
 #include <stdint.h>
+#include <fcntl.h>
 #include <string.h>
+
 #define MHD_PLATFORM_H
 #include <microhttpd.h>
 
@@ -26,6 +27,27 @@ int http_get_args(void * cls, enum MHD_ValueKind kind,
   return MHD_YES;
 }
 
+int try_file_response(const char * url, struct MHD_Connection * connection)
+{
+  int fd, ret;
+  struct MHD_Response * response;
+  struct stat sbuf;
+
+  g_message("Opening %s", url + 1);
+  
+  if ((-1 == (fd = open(url + 1, O_RDONLY))) || 
+      (0 != fstat(fd, &sbuf)))
+  {
+    return MHD_NO;
+  }
+
+  response = MHD_create_response_from_fd(sbuf.st_size, fd);
+  MHD_add_response_header(response, "Content-Type", "text/html");
+  ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
+  MHD_destroy_response(response);
+  return ret;
+}
+
 int access_handler_callback(void * userdata, 
 			    struct MHD_Connection * connection,
 			    const char * url,
@@ -36,17 +58,19 @@ int access_handler_callback(void * userdata,
 			    void ** userpointer)
 {
   struct MHD_Response * response;
-  int ret;
+  int ret = MHD_NO;
   char * text = "1";
   g_message(url);
 
-  MHD_get_connection_values(connection, MHD_GET_ARGUMENT_KIND, 
-			    &http_get_args, NULL);
+  if ((ret = try_file_response(url, connection)))
+    return ret;
+  
+  text = "<html><head><title>Not found</title></head><body>File not found</body></html>";
 
   response = MHD_create_response_from_data(strlen(text), (void *)text,
 					   MHD_NO, MHD_NO);
 
-  ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
+  ret = MHD_queue_response(connection, MHD_HTTP_NOT_FOUND, response);
   MHD_destroy_response(response);
 
   return ret;