closes #12 - added a new Casper 'httpStatusHandlers option object which can cont…

…ain dedicated HTTP status code handlers, one per code (404, 500, 403, etc.)'

@@ -44,6 +44,7 @@
             clientScripts:      [],
             faultTolerant:      true,
             logLevel:           "error",
+            httpStatusHandlers: {},
             onDie:              null,
             onError:            null,
             onLoadError:        null,
@@ -1664,8 +1665,11 @@
             casper.loadInProgress = false;
         };
         page.onResourceReceived = function(resource) {
-            if (resource.url === casper.requestUrl) {
+            if (resource.url === casper.requestUrl && resource.stage === "start") {
                 casper.currentHTTPStatus = resource.status;
+                if (isType(casper.options.httpStatusHandlers, "object") && resource.status in casper.options.httpStatusHandlers) {
+                    casper.options.httpStatusHandlers[resource.status](casper, resource);
+                }
                 casper.currentUrl = resource.url;
             }
         };

+phantom.injectJs('casper.js');
+
+var links = [];
+var casper = new phantom.Casper({
+    httpStatusHandlers: {
+        404: function(self, resource) {
+            self.echo('Resource at ' + resource.url + ' not found (404)');
+        }
+    },
+    verbose: true
+});
+
+casper.start('http://www.google.com/plop', function(self) {
+    self.echo('Done.').exit();
+});
+casper.run();
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