54 lines
1.5 KiB
JavaScript
54 lines
1.5 KiB
JavaScript
var express = require('express');
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var path = require('path');
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var middlewares = exports;
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function safeRequire(m) {
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try {
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return require(m);
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} catch (err) {
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return undefined;
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}
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}
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function createMiddlewareNotInstalled(memberName, moduleName) {
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return function() {
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var msg = 'The middleware loopback.' + memberName + ' is not installed.\n' +
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'Run `npm install --save ' + moduleName + '` to fix the problem.';
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throw new Error(msg);
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};
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}
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var middlewareModules = {
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'compress': 'compression',
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'timeout': 'connect-timeout',
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'cookieParser': 'cookie-parser',
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'cookieSession': 'cookie-session',
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'csrf': 'csurf',
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'errorHandler': 'errorhandler',
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'session': 'express-session',
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'methodOverride': 'method-override',
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'logger': 'morgan',
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'responseTime': 'response-time',
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'favicon': 'serve-favicon',
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'directory': 'serve-index',
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// 'static': 'serve-static',
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'vhost': 'vhost'
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};
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middlewares.bodyParser = safeRequire('body-parser');
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middlewares.json = middlewares.bodyParser && middlewares.bodyParser.json;
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middlewares.urlencoded = middlewares.bodyParser && middlewares.bodyParser.urlencoded;
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for (var m in middlewareModules) {
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var moduleName = middlewareModules[m];
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middlewares[m] = safeRequire(moduleName) || createMiddlewareNotInstalled(m, moduleName);
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}
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// serve-favicon requires a path
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var favicon = middlewares.favicon;
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middlewares.favicon = function(icon, options) {
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icon = icon || path.join(__dirname, '../favicon.ico');
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return favicon(icon, options);
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};
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