1 files changed, 112 insertions, 0 deletions
diff --git a/packages/meteor-accounts-cas/cas_client.js b/packages/meteor-accounts-cas/cas_client.js
new file mode 100644
index 00000000..bd94be6b
--- /dev/null
+++ b/packages/meteor-accounts-cas/cas_client.js
@@ -0,0 +1,112 @@
+
+function addParameterToURL(url, param){
+  var urlSplit = url.split('?');
+  return url+(urlSplit.length>0 ? '?':'&') + param;
+}
+
+Meteor.initCas = function(callback) {
+    const casTokenMatch = window.location.href.match(/[?&]casToken=([^&]+)/);
+    if (casTokenMatch == null) {
+        return;
+    }
+
+    window.history.pushState('', document.title, window.location.href.replace(/([&?])casToken=[^&]+[&]?/, '$1').replace(/[?&]+$/g, ''));
+
+    Accounts.callLoginMethod({
+        methodArguments: [{ cas: { credentialToken: casTokenMatch[1] } }],
+        userCallback: function(err){
+            if (err == null) {
+                // should we do anything on success?
+            }
+            if (callback != null) {
+                callback(err);
+            }
+        }
+    });
+}
+
+Meteor.loginWithCas = function(options, callback) {
+
+    var credentialToken = Random.id();
+
+    if (!Meteor.settings.public &&
+        !Meteor.settings.public.cas &&
+        !Meteor.settings.public.cas.loginUrl) {
+        return;
+    }
+
+    var settings = Meteor.settings.public.cas;
+
+    var backURL = window.location.href.replace('#', '');
+    if (options != null && options.redirectUrl != null)
+        backURL = options.redirectUrl;
+
+    var serviceURL = addParameterToURL(backURL, 'casToken='+credentialToken);
+
+    var loginUrl = settings.loginUrl +
+        "?" + (settings.serviceParam || "service") + "=" +
+        encodeURIComponent(serviceURL)
+
+    if (settings.popup == false) {
+      window.location = loginUrl;
+      return;
+    }
+
+    var popup = openCenteredPopup(
+        loginUrl,
+        settings.width || 800,
+        settings.height || 600
+    );
+
+    var checkPopupOpen = setInterval(function() {
+        try {
+	    if(popup && popup.document && popup.document.getElementById('popupCanBeClosed')) {
+                popup.close();
+      	    }
+            // Fix for #328 - added a second test criteria (popup.closed === undefined)
+            // to humour this Android quirk:
+            // http://code.google.com/p/android/issues/detail?id=21061
+            var popupClosed = popup.closed || popup.closed === undefined;
+        } catch (e) {
+            // For some unknown reason, IE9 (and others?) sometimes (when
+            // the popup closes too quickly?) throws "SCRIPT16386: No such
+            // interface supported" when trying to read 'popup.closed'. Try
+            // again in 100ms.
+            return;
+        }
+
+        if (popupClosed) {
+            clearInterval(checkPopupOpen);
+
+            // check auth on server.
+            Accounts.callLoginMethod({
+                methodArguments: [{ cas: { credentialToken: credentialToken } }],
+                userCallback: callback
+            });
+        }
+    }, 100);
+};
+
+var openCenteredPopup = function(url, width, height) {
+  var screenX = typeof window.screenX !== 'undefined'
+  ? window.screenX : window.screenLeft;
+  var screenY = typeof window.screenY !== 'undefined'
+  ? window.screenY : window.screenTop;
+  var outerWidth = typeof window.outerWidth !== 'undefined'
+  ? window.outerWidth : document.body.clientWidth;
+  var outerHeight = typeof window.outerHeight !== 'undefined'
+  ? window.outerHeight : (document.body.clientHeight - 22);
+  // XXX what is the 22?
+
+  // Use `outerWidth - width` and `outerHeight - height` for help in
+  // positioning the popup centered relative to the current window
+  var left = screenX + (outerWidth - width) / 2;
+  var top = screenY + (outerHeight - height) / 2;
+  var features = ('width=' + width + ',height=' + height +
+      ',left=' + left + ',top=' + top + ',scrollbars=yes');
+
+  var newwindow = window.open(url, '_blank', features);
+  if (newwindow.focus)
+    newwindow.focus();
+  return newwindow;
+};