all files / lib/ util.js

97.92% Statements 94/96
80.49% Branches 33/41
100% Functions 19/19
97.89% Lines 93/95
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// jscs:disable jsDoc
var crypto = require('crypto'),
	fs = require('fs'),
	path = require('path'),
	_ = require('lodash');
 
/*
 Public API.
 */
exports.md5 = md5;
exports.redirect = redirect;
exports.html = html;
exports.css = css;
exports.json = json;
exports.nocontent = nocontent;
exports.javascript = javascript;
exports.gravatar = gravatar;
exports.preferences = preferences;
exports.etag = etag;
exports.generateAPI = generateAPI;
exports.generateAPIName = generateAPIName;
exports.generateModelName = generateModelName;
 
/*
 Implementation.
 */
function md5(value) {
	return crypto.createHash('md5').update(value).digest('hex');
}
 
function redirect(res, url) {
	res.redirect(url);
}
 
function html(res, content) {
	res.set('Content-Type', 'text/html');
	res.send(content || '<html></html>');
}
 
function javascript(res, content) {
	res.set('Content-Type', 'text/javascript');
	res.send(content || '/* */');
}
 
function css(res, content) {
	res.set('Content-Type', 'text/css');
	res.send(content || '/* */');
}
 
function json(res, content) {
	res.json(content);
}
 
function nocontent(res) {
	res.sendStatus(204);
}
 
function gravatar(email) {
	return 'http://www.gravatar.com/avatar/' + md5(email) + '.png';
}
 
function home() {
	return process.env.HOME || process.env.HOMEPATH || process.env.USERPROFILE;
}
 
function preferences() {
	var _home = home(),
		cfg = {};
 
	['.appcelerator/appc-cli.json', '.acs', '.titanium/config.json'].forEach(function (name) {
		var p = path.join(_home, name);
		Eif (fs.existsSync(p)) {
			_.defaults(cfg, JSON.parse(fs.readFileSync(p).toString()));
		}
	});
 
	Iif (!cfg.username) {
		cfg.username = process.env.APPC_SESSION_USERNAME || cfg.user && cfg.user.email;
	}
 
	return cfg;
}
 
function etag(stats) {
	if (stats === undefined) {
		throw new Error('stats is a required argument to etag!');
	}
	if (typeof stats === 'string') {
		return md5(stats);
	}
	return md5(String(stats.ino) + String(stats.mtime));
}
 
const VERBMAP = {
	'GET': 'read',
	'PUT': 'update',
	'POST': 'create',
	'DELETE': 'delete'
};
 
function safeName(name) {
	return name.replace(/^\//, '').split('/')[0].replace(/\s+/g, '-');
}
 
function generateAPIName(def) {
	Iif (def.filename && fs.existsSync(def.filename)) {
		return def.filename;
	}
	var name = safeName(def.group) + '-' + safeName(def.path) + '-' + VERBMAP[def.method] + '.js';
	return path.join(process.cwd(), 'apis', name);
}
 
function generateModelName(config, name) {
	return path.join(config && config.dir || process.cwd(), 'models', safeName(name) + '.js');
}
 
function generateAPI(def) {
 
	var path = (def.path || '').substring(1).split('/'),
		parameters = {};
 
	path.forEach(function (token) {
		if (token.charAt(0) === ':') {
			var name = token.substring(1);
			if (/\?$/.test(name)) {
				name = name.substring(0, name.length - 1);
				parameters[name] = {description: name + ' parameter', optional: true};
			} else {
				parameters[name] = {description: name + ' parameter'};
			}
		}
	});
 
	var count = Object.keys(parameters).length;
 
	var code = 'var Arrow = require(\'arrow\');\n\n';
	code += 'var API = Arrow.API.extend({\n';
	code += '\tgroup: \'' + def.group + '\',\n';
	code += '\tpath: \'' + def.path + '\',\n';
	code += '\tmethod: \'' + def.method + '\',\n';
	code += '\tdescription: \'' + def.description + '\',\n';
	code += '\tmodel: ' + JSON.stringify(def.model) + ',\n';
	code += '\tbefore: ' + JSON.stringify(def.before || []) + ',\n';
	code += '\tafter: ' + JSON.stringify(def.after || []) + ',\n';
	code += '\tparameters: {\n';
	Object.keys(parameters).forEach(function (key, index) {
		code += '\t\t\'' + key + '\': ' + JSON.stringify(parameters[key]);
		code += ((index + 1 < count) ? ',' : '') + '\n';
	});
	code += '\t},\n';
	if (def.action) {
		code += '\t' + def.action.name + ': function ' + def.action.name + '(' + def.action.args.join(', ') + ') {\n';
		code += def.action.body.split(/\n/).map(function (line) {return '\t\t' + line;}).join('\n') + '\n';
		code += '\t}\n';
	} else {
		code += '\taction: function action (req, resp, next) {\n';
		code += '\t\t//TODO implement\n';
		code += '\t\tresp.nocontent(next);\n';
		code += '\t}\n';
	}
	code += '});\n\n';
	code += 'module.exports = API;';
	return code;
}