yahoo.js

(function(hello) {

	hello.init({

		yahoo: {

			// Ensure that you define an oauth_proxy
			oauth: {
				version: '1.0a',
				auth: 'https://api.login.yahoo.com/oauth/v2/request_auth',
				request: 'https://api.login.yahoo.com/oauth/v2/get_request_token',
				token: 'https://api.login.yahoo.com/oauth/v2/get_token',
				// Yahoo requires the state param to be base 64 encoded, hence the flag base64_state is set to true for Yahoo.
				// Else uri encoding is used for all the other providers.
				base64_state: true
			},

			// Login handler
			login: function(p) {
				// Change the default popup window to be at least 560
				// Yahoo does dynamically change it on the fly for the signin screen (only, what if your already signed in)
				p.options.popup.width = 560;

				// Yahoo throws an parameter error if for whatever reason the state.scope contains a comma, so lets remove scope
				try {delete p.qs.state.scope;}
				catch (e) {}
			},

			base: 'https://social.yahooapis.com/v1/',

			get: {
				me: yql('select * from social.profile(0) where guid=me'),
				'me/friends': yql('select * from social.contacts(0) where guid=me'),
				'me/following': yql('select * from social.contacts(0) where guid=me')
			},
			wrap: {
				me: formatUser,

				// Can't get IDs
				// It might be better to loop through the social.relationship table with has unique IDs of users.
				'me/friends': formatFriends,
				'me/following': formatFriends,
				'default': paging
			}
		}
	});

	/*
		// Auto-refresh fix: bug in Yahoo can't get this to work with node-oauth-shim
		login : function(o){
			// Is the user already logged in
			var auth = hello('yahoo').getAuthResponse();

			// Is this a refresh token?
			if(o.options.display==='none'&&auth&&auth.access_token&&auth.refresh_token){
				// Add the old token and the refresh token, including path to the query
				// See http://developer.yahoo.com/oauth/guide/oauth-refreshaccesstoken.html
				o.qs.access_token = auth.access_token;
				o.qs.refresh_token = auth.refresh_token;
				o.qs.token_url = 'https://api.login.yahoo.com/oauth/v2/get_token';
			}
		},
	*/

	function formatError(o) {
		if (o && 'meta' in o && 'error_type' in o.meta) {
			o.error = {
				code: o.meta.error_type,
				message: o.meta.error_message
			};
		}
	}

	function formatUser(o) {

		formatError(o);
		if (o.query && o.query.results && o.query.results.profile) {
			o = o.query.results.profile;
			o.id = o.guid;
			o.last_name = o.familyName;
			o.first_name = o.givenName || o.nickname;
			var a = [];
			if (o.first_name) {
				a.push(o.first_name);
			}

			if (o.last_name) {
				a.push(o.last_name);
			}

			o.name = a.join(' ');
			o.email = (o.emails && o.emails[0]) ? o.emails[0].handle : null;
			o.thumbnail = o.image ? o.image.imageUrl : null;
		}

		return o;
	}

	function formatFriends(o, headers, request) {
		formatError(o);
		paging(o, headers, request);
		var contact;
		var field;
		if (o.query && o.query.results && o.query.results.contact) {
			o.data = o.query.results.contact;
			delete o.query;

			if (!Array.isArray(o.data)) {
				o.data = [o.data];
			}

			o.data.forEach(formatFriend);
		}

		return o;
	}

	function formatFriend(contact) {
		contact.id = null;

		// #362: Reports of responses returning a single item, rather than an Array of items.
		// Format the contact.fields to be an array.
		if (contact.fields && !(contact.fields instanceof Array)) {
			contact.fields = [contact.fields];
		}

		(contact.fields || []).forEach(function(field) {
			if (field.type === 'email') {
				contact.email = field.value;
			}

			if (field.type === 'name') {
				contact.first_name = field.value.givenName;
				contact.last_name = field.value.familyName;
				contact.name = field.value.givenName + ' ' + field.value.familyName;
			}

			if (field.type === 'yahooid') {
				contact.id = field.value;
			}
		});
	}

	function paging(res, headers, request) {

		// See: http://developer.yahoo.com/yql/guide/paging.html#local_limits
		if (res.query && res.query.count && request.options) {
			res.paging = {
				next: '?start=' + (res.query.count + (+request.options.start || 1))
			};
		}

		return res;
	}

	function yql(q) {
		return 'https://query.yahooapis.com/v1/yql?q=' + (q + ' limit @{limit|100} offset @{start|0}').replace(/\s/g, '%20') + '&format=json';
	}

})(hello);