2013-12-12 02:48:03 -05:00
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require 'sinatra'
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require "sinatra/reloader"
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require 'yaml'
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# configure sinatra
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set :run, false
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set :raise_errors, true
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2016-06-26 20:29:32 -04:00
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# REQUEST STEP (server-side flow)
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2013-12-12 02:48:03 -05:00
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get '/server-side' do
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2016-06-26 20:29:32 -04:00
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# NOTE: You would just hit this endpoint directly from the browser in a real app. The redirect is
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# just here to explicit declare this server-side flow.
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2013-12-12 02:48:03 -05:00
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redirect '/auth/facebook'
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end
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2016-06-26 20:29:32 -04:00
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# REQUEST STEP (client-side flow)
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2013-12-12 02:48:03 -05:00
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get '/client-side' do
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content_type 'text/html'
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2016-06-26 20:29:32 -04:00
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# NOTE: When you enable cookie below in the FB.init call the GET request in the FB.login callback
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# will send a signed request in a cookie back the OmniAuth callback which will parse out the
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# authorization code and obtain an access_token with it.
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<<-HTML
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2013-12-12 02:48:03 -05:00
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<html>
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<head>
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<title>Client-side Flow Example</title>
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2016-06-26 20:29:32 -04:00
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<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js" type="text/javascript"></script>
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2013-12-12 02:48:03 -05:00
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<script type="text/javascript">
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window.fbAsyncInit = function() {
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FB.init({
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2016-06-26 20:29:32 -04:00
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appId: '#{ENV['APP_ID']}',
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2016-06-26 20:39:36 -04:00
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version: 'v2.6',
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2016-06-26 20:29:32 -04:00
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cookie: true // IMPORTANT must enable cookies to allow the server to access the session
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2013-12-12 02:48:03 -05:00
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});
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2016-06-26 20:29:32 -04:00
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console.log("fb init");
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2013-12-12 02:48:03 -05:00
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};
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2016-06-26 20:29:32 -04:00
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(function(d, s, id){
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var js, fjs = d.getElementsByTagName(s)[0];
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if (d.getElementById(id)) {return;}
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js = d.createElement(s); js.id = id;
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js.src = "//connect.facebook.net/en_US/sdk.js";
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fjs.parentNode.insertBefore(js, fjs);
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}(document, 'script', 'facebook-jssdk'));
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2013-12-12 02:48:03 -05:00
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</script>
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2016-06-26 20:29:32 -04:00
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</head>
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<body>
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<div id="fb-root"></div>
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2013-12-12 02:48:03 -05:00
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<p id="connect">
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<a href="#">Connect to FB!</a>
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</p>
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<p id="results" />
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2016-06-26 20:29:32 -04:00
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<script type="text/javascript">
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$('a').click(function(e) {
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e.preventDefault();
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FB.login(function(response) {
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console.log(response);
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if (response.authResponse) {
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$('#connect').html('Connected! Hitting OmniAuth callback (GET /auth/facebook/callback)...');
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// since we have cookies enabled, this request will allow omniauth to parse
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// out the auth code from the signed request in the fbsr_XXX cookie
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$.getJSON('/auth/facebook/callback', function(json) {
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$('#connect').html('Connected! Callback complete.');
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$('#results').html(JSON.stringify(json));
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});
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}
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}); // if you want custom scopes, pass them as an extra, final argument to FB.login
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});
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</script>
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2013-12-12 02:48:03 -05:00
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</body>
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</html>
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2016-06-26 20:29:32 -04:00
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HTML
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2013-12-12 02:48:03 -05:00
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end
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2016-06-26 20:29:32 -04:00
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# CALLBACK STEP
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# - redirected here for server-side flow
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# - ajax request made here for client-side flow
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2013-12-12 02:48:03 -05:00
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get '/auth/:provider/callback' do
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content_type 'application/json'
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MultiJson.encode(request.env)
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end
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