how we connect to facebook manually...

ClassphotosConnectController.js

facebookConnect: function (domId) {
  var _this = this;
  _this.get('controllers.facebook').fbLoginStatus().then(function (resp) {
    if (resp === 'blocked_by_client') {
      var $fbConnAction = $('#' + domId);
      $fbConnAction.popover({
        placement: 'auto top',
        trigger: 'manual',
        title: '<strong>Unable to Connect to Facebook</strong>',
        html: true,
        content: 'A Facebook connection is required to continue, but cannot be established.  Consider disabling browser plugins that might block Facebook Connect.'
      }).popover('toggle');
    } else {
      _this.set('controllers.facebook.fromSPV', true);
      if (_this.get('controllers.facebook.connectToMismatch')) {
          _this.transitionToRoute('classphotos.mismatch');
      } else if (_this.get('controllers.facebook.fbConnected')) {
        // console.log("fbConnected");
        _this.get('controllers.facebook').setBypassParam(true);
        if (_this.get('controllers.facebook.isCMAuthorized')) {
          // console.log("isCMAuthed");
          _this.get('controllers.facebook').cmMemberTieFlow();
        } else {
           // console.log("NOT cmAuthed.");
          _this.get('controllers.facebook').loginToCMWithFB();
        }
      } else {
        // we test if the user is logged in via classmates' system
        if (_this.get('isVisitor')) {
          // if visitor... and not connected to facebook -> then connect to facebook
          window.location.href = globals.linkBuilder.facebookLoginUrl({
              redirectTo: globals.linkBuilder.links.classphotosUrl + '?connectBypass=true'
          });
        } else {

          // if user... and not connected to facebook -> connect to facebook, when successful
          // tie the two accounts together.
          window.location.href = globals.linkBuilder.facebookLoginUrl({
              redirectTo: globals.linkBuilder.links.classphotosUrl + "?connectBypass=true&createTie=true"
          });
        }
      }
    }
});

linkBuilder.js

linkBuilder.facebookLoginUrl = function(_args) {
	_args = _args || {},
	permissions = _args.permissions || envConf.facebook.permissions,
	redirectTo = _args.redirectTo || linkBuilder.links.classphotosUrl + '?connectBypass=true',
	cancelUrl = _args.cancelUrl || linkBuilder.links.classphotosConnectUrl,
	clientId = _args.clientId || linkBuilder.facebook.facebookAppID;

	return  'https://www.facebook.com/'+envConf.facebook.facebookVersion+'/dialog/oauth?client_id=' + clientId +
	  '&redirect_uri=' + encodeURIComponent(redirectTo) + '&scope=' +
  	permissions + '&cancel_url=' + encodeURIComponent(cancelUrl);
};