mirror of
https://github.com/KevinMidboe/zoff.git
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Started on node.js+socket.io+mongoDB on the backend for more responsivnes
This commit is contained in:
KasperRT
576
server/node_modules/express/lib/router/index.js
generated
vendored
Executable file
576
server/node_modules/express/lib/router/index.js
generated
vendored
Executable file
@@ -0,0 +1,576 @@
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/**
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* Module dependencies.
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*/
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var Route = require('./route');
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var Layer = require('./layer');
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var methods = require('methods');
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var mixin = require('utils-merge');
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var debug = require('debug')('express:router');
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var parseUrl = require('parseurl');
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var utils = require('../utils');
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/**
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* Module variables.
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*/
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var objectRegExp = /^\[object (\S+)\]$/;
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var slice = Array.prototype.slice;
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var toString = Object.prototype.toString;
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/**
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* Initialize a new `Router` with the given `options`.
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*
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* @param {Object} options
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* @return {Router} which is an callable function
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* @api public
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*/
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var proto = module.exports = function(options) {
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options = options || {};
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function router(req, res, next) {
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router.handle(req, res, next);
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}
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// mixin Router class functions
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router.__proto__ = proto;
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router.params = {};
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router._params = [];
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router.caseSensitive = options.caseSensitive;
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router.mergeParams = options.mergeParams;
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router.strict = options.strict;
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router.stack = [];
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return router;
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};
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/**
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* Map the given param placeholder `name`(s) to the given callback.
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*
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* Parameter mapping is used to provide pre-conditions to routes
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* which use normalized placeholders. For example a _:user_id_ parameter
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* could automatically load a user's information from the database without
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* any additional code,
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*
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* The callback uses the same signature as middleware, the only difference
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* being that the value of the placeholder is passed, in this case the _id_
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* of the user. Once the `next()` function is invoked, just like middleware
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* it will continue on to execute the route, or subsequent parameter functions.
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*
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* Just like in middleware, you must either respond to the request or call next
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* to avoid stalling the request.
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*
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* app.param('user_id', function(req, res, next, id){
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* User.find(id, function(err, user){
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* if (err) {
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* return next(err);
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* } else if (!user) {
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* return next(new Error('failed to load user'));
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* }
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* req.user = user;
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* next();
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* });
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* });
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*
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* @param {String} name
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* @param {Function} fn
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* @return {app} for chaining
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* @api public
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||||
*/
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||||
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proto.param = function(name, fn){
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// param logic
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if ('function' == typeof name) {
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this._params.push(name);
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return;
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||||
}
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// apply param functions
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var params = this._params;
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var len = params.length;
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var ret;
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|
||||
if (name[0] === ':') {
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name = name.substr(1);
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}
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||||
|
||||
for (var i = 0; i < len; ++i) {
|
||||
if (ret = params[i](name, fn)) {
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fn = ret;
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||||
}
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||||
}
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|
||||
// ensure we end up with a
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// middleware function
|
||||
if ('function' != typeof fn) {
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throw new Error('invalid param() call for ' + name + ', got ' + fn);
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||||
}
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||||
|
||||
(this.params[name] = this.params[name] || []).push(fn);
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||||
return this;
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||||
};
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||||
|
||||
/**
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||||
* Dispatch a req, res into the router.
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||||
*
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||||
* @api private
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||||
*/
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||||
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proto.handle = function(req, res, done) {
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||||
var self = this;
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debug('dispatching %s %s', req.method, req.url);
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||||
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||||
var search = 1 + req.url.indexOf('?');
|
||||
var pathlength = search ? search - 1 : req.url.length;
|
||||
var fqdn = req.url[0] !== '/' && 1 + req.url.substr(0, pathlength).indexOf('://');
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||||
var protohost = fqdn ? req.url.substr(0, req.url.indexOf('/', 2 + fqdn)) : '';
|
||||
var idx = 0;
|
||||
var removed = '';
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||||
var slashAdded = false;
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||||
var paramcalled = {};
|
||||
|
||||
// store options for OPTIONS request
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||||
// only used if OPTIONS request
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||||
var options = [];
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||||
|
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// middleware and routes
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var stack = self.stack;
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||||
|
||||
// manage inter-router variables
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||||
var parentParams = req.params;
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var parentUrl = req.baseUrl || '';
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done = restore(done, req, 'baseUrl', 'next', 'params');
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||||
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||||
// setup next layer
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||||
req.next = next;
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||||
|
||||
// for options requests, respond with a default if nothing else responds
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||||
if (req.method === 'OPTIONS') {
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||||
done = wrap(done, function(old, err) {
|
||||
if (err || options.length === 0) return old(err);
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||||
|
||||
var body = options.join(',');
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||||
return res.set('Allow', body).send(body);
|
||||
});
|
||||
}
|
||||
|
||||
// setup basic req values
|
||||
req.baseUrl = parentUrl;
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||||
req.originalUrl = req.originalUrl || req.url;
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||||
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||||
next();
|
||||
|
||||
function next(err) {
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||||
var layerError = err === 'route'
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||||
? null
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||||
: err;
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||||
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||||
var layer = stack[idx++];
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||||
|
||||
if (slashAdded) {
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||||
req.url = req.url.substr(1);
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slashAdded = false;
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||||
}
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||||
if (removed.length !== 0) {
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||||
req.baseUrl = parentUrl;
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||||
req.url = protohost + removed + req.url.substr(protohost.length);
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||||
removed = '';
|
||||
}
|
||||
|
||||
if (!layer) {
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||||
setImmediate(done, layerError);
|
||||
return;
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||||
}
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||||
|
||||
self.match_layer(layer, req, res, function (err, path) {
|
||||
if (err || path === undefined) {
|
||||
return next(layerError || err);
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||||
}
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||||
|
||||
// route object and not middleware
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||||
var route = layer.route;
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||||
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||||
// if final route, then we support options
|
||||
if (route) {
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||||
// we don't run any routes with error first
|
||||
if (layerError) {
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||||
return next(layerError);
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||||
}
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||||
|
||||
var method = req.method;
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||||
var has_method = route._handles_method(method);
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||||
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||||
// build up automatic options response
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||||
if (!has_method && method === 'OPTIONS') {
|
||||
options.push.apply(options, route._options());
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||||
}
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||||
|
||||
// don't even bother
|
||||
if (!has_method && method !== 'HEAD') {
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||||
return next();
|
||||
}
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||||
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||||
// we can now dispatch to the route
|
||||
req.route = route;
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||||
}
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||||
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||||
// Capture one-time layer values
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||||
req.params = self.mergeParams
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||||
? mergeParams(layer.params, parentParams)
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||||
: layer.params;
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var layerPath = layer.path;
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||||
|
||||
// this should be done for the layer
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||||
self.process_params(layer, paramcalled, req, res, function (err) {
|
||||
if (err) {
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||||
return next(layerError || err);
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||||
}
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||||
|
||||
if (route) {
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||||
return layer.handle_request(req, res, next);
|
||||
}
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||||
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||||
trim_prefix(layer, layerError, layerPath, path);
|
||||
});
|
||||
});
|
||||
}
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||||
|
||||
function trim_prefix(layer, layerError, layerPath, path) {
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||||
var c = path[layerPath.length];
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||||
if (c && '/' !== c && '.' !== c) return next(layerError);
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||||
|
||||
// Trim off the part of the url that matches the route
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||||
// middleware (.use stuff) needs to have the path stripped
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||||
if (layerPath.length !== 0) {
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||||
debug('trim prefix (%s) from url %s', layerPath, req.url);
|
||||
removed = layerPath;
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||||
req.url = protohost + req.url.substr(protohost.length + removed.length);
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||||
|
||||
// Ensure leading slash
|
||||
if (!fqdn && req.url[0] !== '/') {
|
||||
req.url = '/' + req.url;
|
||||
slashAdded = true;
|
||||
}
|
||||
|
||||
// Setup base URL (no trailing slash)
|
||||
req.baseUrl = parentUrl + (removed[removed.length - 1] === '/'
|
||||
? removed.substring(0, removed.length - 1)
|
||||
: removed);
|
||||
}
|
||||
|
||||
debug('%s %s : %s', layer.name, layerPath, req.originalUrl);
|
||||
|
||||
if (layerError) {
|
||||
layer.handle_error(layerError, req, res, next);
|
||||
} else {
|
||||
layer.handle_request(req, res, next);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
/**
|
||||
* Match request to a layer.
|
||||
*
|
||||
* @api private
|
||||
*/
|
||||
|
||||
proto.match_layer = function match_layer(layer, req, res, done) {
|
||||
var error = null;
|
||||
var path;
|
||||
|
||||
try {
|
||||
path = parseUrl(req).pathname;
|
||||
|
||||
if (!layer.match(path)) {
|
||||
path = undefined;
|
||||
}
|
||||
} catch (err) {
|
||||
error = err;
|
||||
}
|
||||
|
||||
done(error, path);
|
||||
};
|
||||
|
||||
/**
|
||||
* Process any parameters for the layer.
|
||||
*
|
||||
* @api private
|
||||
*/
|
||||
|
||||
proto.process_params = function(layer, called, req, res, done) {
|
||||
var params = this.params;
|
||||
|
||||
// captured parameters from the layer, keys and values
|
||||
var keys = layer.keys;
|
||||
|
||||
// fast track
|
||||
if (!keys || keys.length === 0) {
|
||||
return done();
|
||||
}
|
||||
|
||||
var i = 0;
|
||||
var name;
|
||||
var paramIndex = 0;
|
||||
var key;
|
||||
var paramVal;
|
||||
var paramCallbacks;
|
||||
var paramCalled;
|
||||
|
||||
// process params in order
|
||||
// param callbacks can be async
|
||||
function param(err) {
|
||||
if (err) {
|
||||
return done(err);
|
||||
}
|
||||
|
||||
if (i >= keys.length ) {
|
||||
return done();
|
||||
}
|
||||
|
||||
paramIndex = 0;
|
||||
key = keys[i++];
|
||||
|
||||
if (!key) {
|
||||
return done();
|
||||
}
|
||||
|
||||
name = key.name;
|
||||
paramVal = req.params[name];
|
||||
paramCallbacks = params[name];
|
||||
paramCalled = called[name];
|
||||
|
||||
if (paramVal === undefined || !paramCallbacks) {
|
||||
return param();
|
||||
}
|
||||
|
||||
// param previously called with same value or error occurred
|
||||
if (paramCalled && (paramCalled.error || paramCalled.match === paramVal)) {
|
||||
// restore value
|
||||
req.params[name] = paramCalled.value;
|
||||
|
||||
// next param
|
||||
return param(paramCalled.error);
|
||||
}
|
||||
|
||||
called[name] = paramCalled = {
|
||||
error: null,
|
||||
match: paramVal,
|
||||
value: paramVal
|
||||
};
|
||||
|
||||
paramCallback();
|
||||
}
|
||||
|
||||
// single param callbacks
|
||||
function paramCallback(err) {
|
||||
var fn = paramCallbacks[paramIndex++];
|
||||
|
||||
// store updated value
|
||||
paramCalled.value = req.params[key.name];
|
||||
|
||||
if (err) {
|
||||
// store error
|
||||
paramCalled.error = err;
|
||||
param(err);
|
||||
return;
|
||||
}
|
||||
|
||||
if (!fn) return param();
|
||||
|
||||
try {
|
||||
fn(req, res, paramCallback, paramVal, key.name);
|
||||
} catch (e) {
|
||||
paramCallback(e);
|
||||
}
|
||||
}
|
||||
|
||||
param();
|
||||
};
|
||||
|
||||
/**
|
||||
* Use the given middleware function, with optional path, defaulting to "/".
|
||||
*
|
||||
* Use (like `.all`) will run for any http METHOD, but it will not add
|
||||
* handlers for those methods so OPTIONS requests will not consider `.use`
|
||||
* functions even if they could respond.
|
||||
*
|
||||
* The other difference is that _route_ path is stripped and not visible
|
||||
* to the handler function. The main effect of this feature is that mounted
|
||||
* handlers can operate without any code changes regardless of the "prefix"
|
||||
* pathname.
|
||||
*
|
||||
* @api public
|
||||
*/
|
||||
|
||||
proto.use = function use(fn) {
|
||||
var offset = 0;
|
||||
var path = '/';
|
||||
|
||||
// default path to '/'
|
||||
// disambiguate router.use([fn])
|
||||
if (typeof fn !== 'function') {
|
||||
var arg = fn;
|
||||
|
||||
while (Array.isArray(arg) && arg.length !== 0) {
|
||||
arg = arg[0];
|
||||
}
|
||||
|
||||
// first arg is the path
|
||||
if (typeof arg !== 'function') {
|
||||
offset = 1;
|
||||
path = fn;
|
||||
}
|
||||
}
|
||||
|
||||
var callbacks = utils.flatten(slice.call(arguments, offset));
|
||||
|
||||
if (callbacks.length === 0) {
|
||||
throw new TypeError('Router.use() requires middleware functions');
|
||||
}
|
||||
|
||||
callbacks.forEach(function (fn) {
|
||||
if (typeof fn !== 'function') {
|
||||
throw new TypeError('Router.use() requires middleware function but got a ' + gettype(fn));
|
||||
}
|
||||
|
||||
// add the middleware
|
||||
debug('use %s %s', path, fn.name || '<anonymous>');
|
||||
|
||||
var layer = new Layer(path, {
|
||||
sensitive: this.caseSensitive,
|
||||
strict: false,
|
||||
end: false
|
||||
}, fn);
|
||||
|
||||
layer.route = undefined;
|
||||
|
||||
this.stack.push(layer);
|
||||
}, this);
|
||||
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Create a new Route for the given path.
|
||||
*
|
||||
* Each route contains a separate middleware stack and VERB handlers.
|
||||
*
|
||||
* See the Route api documentation for details on adding handlers
|
||||
* and middleware to routes.
|
||||
*
|
||||
* @param {String} path
|
||||
* @return {Route}
|
||||
* @api public
|
||||
*/
|
||||
|
||||
proto.route = function(path){
|
||||
var route = new Route(path);
|
||||
|
||||
var layer = new Layer(path, {
|
||||
sensitive: this.caseSensitive,
|
||||
strict: this.strict,
|
||||
end: true
|
||||
}, route.dispatch.bind(route));
|
||||
|
||||
layer.route = route;
|
||||
|
||||
this.stack.push(layer);
|
||||
return route;
|
||||
};
|
||||
|
||||
// create Router#VERB functions
|
||||
methods.concat('all').forEach(function(method){
|
||||
proto[method] = function(path){
|
||||
var route = this.route(path)
|
||||
route[method].apply(route, slice.call(arguments, 1));
|
||||
return this;
|
||||
};
|
||||
});
|
||||
|
||||
// get type for error message
|
||||
function gettype(obj) {
|
||||
var type = typeof obj;
|
||||
|
||||
if (type !== 'object') {
|
||||
return type;
|
||||
}
|
||||
|
||||
// inspect [[Class]] for objects
|
||||
return toString.call(obj)
|
||||
.replace(objectRegExp, '$1');
|
||||
}
|
||||
|
||||
// merge params with parent params
|
||||
function mergeParams(params, parent) {
|
||||
if (typeof parent !== 'object' || !parent) {
|
||||
return params;
|
||||
}
|
||||
|
||||
// make copy of parent for base
|
||||
var obj = mixin({}, parent);
|
||||
|
||||
// simple non-numeric merging
|
||||
if (!(0 in params) || !(0 in parent)) {
|
||||
return mixin(obj, params);
|
||||
}
|
||||
|
||||
var i = 0;
|
||||
var o = 0;
|
||||
|
||||
// determine numeric gaps
|
||||
while (i === o || o in parent) {
|
||||
if (i in params) i++;
|
||||
if (o in parent) o++;
|
||||
}
|
||||
|
||||
// offset numeric indices in params before merge
|
||||
for (i--; i >= 0; i--) {
|
||||
params[i + o] = params[i];
|
||||
|
||||
// create holes for the merge when necessary
|
||||
if (i < o) {
|
||||
delete params[i];
|
||||
}
|
||||
}
|
||||
|
||||
return mixin(parent, params);
|
||||
}
|
||||
|
||||
// restore obj props after function
|
||||
function restore(fn, obj) {
|
||||
var props = new Array(arguments.length - 2);
|
||||
var vals = new Array(arguments.length - 2);
|
||||
|
||||
for (var i = 0; i < props.length; i++) {
|
||||
props[i] = arguments[i + 2];
|
||||
vals[i] = obj[props[i]];
|
||||
}
|
||||
|
||||
return function(err){
|
||||
// restore vals
|
||||
for (var i = 0; i < props.length; i++) {
|
||||
obj[props[i]] = vals[i];
|
||||
}
|
||||
|
||||
return fn.apply(this, arguments);
|
||||
};
|
||||
}
|
||||
|
||||
// wrap a function
|
||||
function wrap(old, fn) {
|
||||
return function proxy() {
|
||||
var args = new Array(arguments.length + 1);
|
||||
|
||||
args[0] = old;
|
||||
for (var i = 0, len = arguments.length; i < len; i++) {
|
||||
args[i + 1] = arguments[i];
|
||||
}
|
||||
|
||||
fn.apply(this, args);
|
||||
};
|
||||
}
|
||||
Reference in New Issue
Block a user