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Copy pathexpress-middleware.js
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52 lines (45 loc) · 1.45 KB
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var path = require('path');
var middlewares = exports;
function safeRequire(m) {
try {
return require(m);
} catch (err) {
return undefined;
}
}
function createMiddlewareNotInstalled(memberName, moduleName) {
return function() {
var msg = 'The middleware loopback.' + memberName + ' is not installed.\n' +
'Run `npm install --save ' + moduleName + '` to fix the problem.';
throw new Error(msg);
};
}
var middlewareModules = {
'compress': 'compression',
'timeout': 'connect-timeout',
'cookieParser': 'cookie-parser',
'cookieSession': 'cookie-session',
'csrf': 'csurf',
'errorHandler': 'errorhandler',
'session': 'express-session',
'methodOverride': 'method-override',
'logger': 'morgan',
'responseTime': 'response-time',
'favicon': 'serve-favicon',
'directory': 'serve-index',
// 'static': 'serve-static',
'vhost': 'vhost'
};
middlewares.bodyParser = safeRequire('body-parser');
middlewares.json = middlewares.bodyParser && middlewares.bodyParser.json;
middlewares.urlencoded = middlewares.bodyParser && middlewares.bodyParser.urlencoded;
for (var m in middlewareModules) {
var moduleName = middlewareModules[m];
middlewares[m] = safeRequire(moduleName) || createMiddlewareNotInstalled(m, moduleName);
}
// serve-favicon requires a path
var favicon = middlewares.favicon;
middlewares.favicon = function(icon, options) {
icon = icon || path.join(__dirname, '../favicon.ico');
return favicon(icon, options);
};