--- /dev/null
+
+/*!
+ * Express - request
+ * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
+ * MIT Licensed
+ */
+
+/**
+ * Module dependencies.
+ */
+
+var http = require('http')
+ , req = http.IncomingMessage.prototype
+ , utils = require('./utils')
+ , mime = require('mime');
+
+/**
+ * Default flash formatters.
+ *
+ * @type Object
+ */
+
+var flashFormatters = exports.flashFormatters = {
+ s: function(val){
+ return String(val);
+ }
+};
+
+/**
+ * Return request header or optional default.
+ *
+ * The `Referrer` header field is special-cased,
+ * both `Referrer` and `Referer` will yield are
+ * interchangeable.
+ *
+ * Examples:
+ *
+ * req.header('Content-Type');
+ * // => "text/plain"
+ *
+ * req.header('content-type');
+ * // => "text/plain"
+ *
+ * req.header('Accept');
+ * // => undefined
+ *
+ * req.header('Accept', 'text/html');
+ * // => "text/html"
+ *
+ * @param {String} name
+ * @param {String} defaultValue
+ * @return {String}
+ * @api public
+ */
+
+req.header = function(name, defaultValue){
+ switch (name = name.toLowerCase()) {
+ case 'referer':
+ case 'referrer':
+ return this.headers.referrer
+ || this.headers.referer
+ || defaultValue;
+ default:
+ return this.headers[name] || defaultValue;
+ }
+};
+
+/**
+ * Check if the _Accept_ header is present, and includes the given `type`.
+ *
+ * When the _Accept_ header is not present `true` is returned. Otherwise
+ * the given `type` is matched by an exact match, and then subtypes. You
+ * may pass the subtype such as "html" which is then converted internally
+ * to "text/html" using the mime lookup table.
+ *
+ * Examples:
+ *
+ * // Accept: text/html
+ * req.accepts('html');
+ * // => true
+ *
+ * // Accept: text/*; application/json
+ * req.accepts('html');
+ * req.accepts('text/html');
+ * req.accepts('text/plain');
+ * req.accepts('application/json');
+ * // => true
+ *
+ * req.accepts('image/png');
+ * req.accepts('png');
+ * // => false
+ *
+ * @param {String} type
+ * @return {Boolean}
+ * @api public
+ */
+
+req.accepts = function(type){
+ var accept = this.header('Accept');
+
+ // normalize extensions ".json" -> "json"
+ if (type && '.' == type[0]) type = type.substr(1);
+
+ // when Accept does not exist, or is '*/*' return true
+ if (!accept || '*/*' == accept) {
+ return true;
+ } else if (type) {
+ // allow "html" vs "text/html" etc
+ if (type.indexOf('/') < 0) {
+ type = mime.lookup(type);
+ }
+
+ // check if we have a direct match
+ if (~accept.indexOf(type)) return true;
+
+ // check if we have type/*
+ type = type.split('/')[0] + '/*';
+ return accept.indexOf(type) >= 0;
+ } else {
+ return false;
+ }
+};
+
+/**
+ * Return the value of param `name` when present or `defaultValue`.
+ *
+ * - Checks route placeholders, ex: _/user/:id_
+ * - Checks query string params, ex: ?id=12
+ * - Checks urlencoded body params, ex: id=12
+ *
+ * To utilize urlencoded request bodies, `req.body`
+ * should be an object. This can be done by using
+ * the `connect.bodyParser` middleware.
+ *
+ * @param {String} name
+ * @param {Mixed} defaultValue
+ * @return {String}
+ * @api public
+ */
+
+req.param = function(name, defaultValue){
+ // route params like /user/:id
+ if (this.params && this.params.hasOwnProperty(name) && undefined !== this.params[name]) {
+ return this.params[name];
+ }
+ // query string params
+ if (undefined !== this.query[name]) {
+ return this.query[name];
+ }
+ // request body params via connect.bodyParser
+ if (this.body && undefined !== this.body[name]) {
+ return this.body[name];
+ }
+ return defaultValue;
+};
+
+/**
+ * Queue flash `msg` of the given `type`.
+ *
+ * Examples:
+ *
+ * req.flash('info', 'email sent');
+ * req.flash('error', 'email delivery failed');
+ * req.flash('info', 'email re-sent');
+ * // => 2
+ *
+ * req.flash('info');
+ * // => ['email sent', 'email re-sent']
+ *
+ * req.flash('info');
+ * // => []
+ *
+ * req.flash();
+ * // => { error: ['email delivery failed'], info: [] }
+ *
+ * Formatting:
+ *
+ * Flash notifications also support arbitrary formatting support.
+ * For example you may pass variable arguments to `req.flash()`
+ * and use the %s specifier to be replaced by the associated argument:
+ *
+ * req.flash('info', 'email has been sent to %s.', userName);
+ *
+ * To add custom formatters use the `exports.flashFormatters` object.
+ *
+ * @param {String} type
+ * @param {String} msg
+ * @return {Array|Object|Number}
+ * @api public
+ */
+
+req.flash = function(type, msg){
+ if (this.session === undefined) throw Error('req.flash() requires sessions');
+ var msgs = this.session.flash = this.session.flash || {};
+ if (type && msg) {
+ var i = 2
+ , args = arguments
+ , formatters = this.app.flashFormatters || {};
+ formatters.__proto__ = flashFormatters;
+ msg = utils.miniMarkdown(utils.escape(msg));
+ msg = msg.replace(/%([a-zA-Z])/g, function(_, format){
+ var formatter = formatters[format];
+ if (formatter) return formatter(args[i++]);
+ });
+ return (msgs[type] = msgs[type] || []).push(msg);
+ } else if (type) {
+ var arr = msgs[type];
+ delete msgs[type];
+ return arr || [];
+ } else {
+ this.session.flash = {};
+ return msgs;
+ }
+};
+
+/**
+ * Check if the incoming request contains the "Content-Type"
+ * header field, and it contains the give mime `type`.
+ *
+ * Examples:
+ *
+ * // With Content-Type: text/html; charset=utf-8
+ * req.is('html');
+ * req.is('text/html');
+ * // => true
+ *
+ * // When Content-Type is application/json
+ * req.is('json');
+ * req.is('application/json');
+ * // => true
+ *
+ * req.is('html');
+ * // => false
+ *
+ * Ad-hoc callbacks can also be registered with Express, to perform
+ * assertions again the request, for example if we need an expressive
+ * way to check if our incoming request is an image, we can register "an image"
+ * callback:
+ *
+ * app.is('an image', function(req){
+ * return 0 == req.headers['content-type'].indexOf('image');
+ * });
+ *
+ * Now within our route callbacks, we can use to to assert content types
+ * such as "image/jpeg", "image/png", etc.
+ *
+ * app.post('/image/upload', function(req, res, next){
+ * if (req.is('an image')) {
+ * // do something
+ * } else {
+ * next();
+ * }
+ * });
+ *
+ * @param {String} type
+ * @return {Boolean}
+ * @api public
+ */
+
+req.is = function(type){
+ var fn = this.app.is(type);
+ if (fn) return fn(this);
+ var contentType = this.headers['content-type'];
+ if (!contentType) return;
+ if (!~type.indexOf('/')) type = mime.lookup(type);
+ if (~type.indexOf('*')) {
+ type = type.split('/')
+ contentType = contentType.split('/');
+ if ('*' == type[0] && type[1] == contentType[1]) return true;
+ if ('*' == type[1] && type[0] == contentType[0]) return true;
+ }
+ return ~contentType.indexOf(type);
+};
+
+// Callback for isXMLHttpRequest / xhr
+
+function isxhr() {
+ return this.header('X-Requested-With', '').toLowerCase() === 'xmlhttprequest';
+}
+
+/**
+ * Check if the request was an _XMLHttpRequest_.
+ *
+ * @return {Boolean}
+ * @api public
+ */
+
+req.__defineGetter__('isXMLHttpRequest', isxhr);
+req.__defineGetter__('xhr', isxhr);
projects / obsolete / notmuch-web / blobdiff