twitst4tz

twitter statistics web application
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index.js (3994B)

      1 // Copyright 2010-2012 Mikeal Rogers
      2 //
      3 //    Licensed under the Apache License, Version 2.0 (the "License");
      4 //    you may not use this file except in compliance with the License.
      5 //    You may obtain a copy of the License at
      6 //
      7 //        http://www.apache.org/licenses/LICENSE-2.0
      8 //
      9 //    Unless required by applicable law or agreed to in writing, software
     10 //    distributed under the License is distributed on an "AS IS" BASIS,
     11 //    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12 //    See the License for the specific language governing permissions and
     13 //    limitations under the License.
     14 
     15 'use strict'
     16 
     17 var extend = require('extend')
     18 var cookies = require('./lib/cookies')
     19 var helpers = require('./lib/helpers')
     20 
     21 var paramsHaveRequestBody = helpers.paramsHaveRequestBody
     22 
     23 // organize params for patch, post, put, head, del
     24 function initParams (uri, options, callback) {
     25   if (typeof options === 'function') {
     26     callback = options
     27   }
     28 
     29   var params = {}
     30   if (options !== null && typeof options === 'object') {
     31     extend(params, options, {uri: uri})
     32   } else if (typeof uri === 'string') {
     33     extend(params, {uri: uri})
     34   } else {
     35     extend(params, uri)
     36   }
     37 
     38   params.callback = callback || params.callback
     39   return params
     40 }
     41 
     42 function request (uri, options, callback) {
     43   if (typeof uri === 'undefined') {
     44     throw new Error('undefined is not a valid uri or options object.')
     45   }
     46 
     47   var params = initParams(uri, options, callback)
     48 
     49   if (params.method === 'HEAD' && paramsHaveRequestBody(params)) {
     50     throw new Error('HTTP HEAD requests MUST NOT include a request body.')
     51   }
     52 
     53   return new request.Request(params)
     54 }
     55 
     56 function verbFunc (verb) {
     57   var method = verb.toUpperCase()
     58   return function (uri, options, callback) {
     59     var params = initParams(uri, options, callback)
     60     params.method = method
     61     return request(params, params.callback)
     62   }
     63 }
     64 
     65 // define like this to please codeintel/intellisense IDEs
     66 request.get = verbFunc('get')
     67 request.head = verbFunc('head')
     68 request.options = verbFunc('options')
     69 request.post = verbFunc('post')
     70 request.put = verbFunc('put')
     71 request.patch = verbFunc('patch')
     72 request.del = verbFunc('delete')
     73 request['delete'] = verbFunc('delete')
     74 
     75 request.jar = function (store) {
     76   return cookies.jar(store)
     77 }
     78 
     79 request.cookie = function (str) {
     80   return cookies.parse(str)
     81 }
     82 
     83 function wrapRequestMethod (method, options, requester, verb) {
     84   return function (uri, opts, callback) {
     85     var params = initParams(uri, opts, callback)
     86 
     87     var target = {}
     88     extend(true, target, options, params)
     89 
     90     target.pool = params.pool || options.pool
     91 
     92     if (verb) {
     93       target.method = verb.toUpperCase()
     94     }
     95 
     96     if (typeof requester === 'function') {
     97       method = requester
     98     }
     99 
    100     return method(target, target.callback)
    101   }
    102 }
    103 
    104 request.defaults = function (options, requester) {
    105   var self = this
    106 
    107   options = options || {}
    108 
    109   if (typeof options === 'function') {
    110     requester = options
    111     options = {}
    112   }
    113 
    114   var defaults = wrapRequestMethod(self, options, requester)
    115 
    116   var verbs = ['get', 'head', 'post', 'put', 'patch', 'del', 'delete']
    117   verbs.forEach(function (verb) {
    118     defaults[verb] = wrapRequestMethod(self[verb], options, requester, verb)
    119   })
    120 
    121   defaults.cookie = wrapRequestMethod(self.cookie, options, requester)
    122   defaults.jar = self.jar
    123   defaults.defaults = self.defaults
    124   return defaults
    125 }
    126 
    127 request.forever = function (agentOptions, optionsArg) {
    128   var options = {}
    129   if (optionsArg) {
    130     extend(options, optionsArg)
    131   }
    132   if (agentOptions) {
    133     options.agentOptions = agentOptions
    134   }
    135 
    136   options.forever = true
    137   return request.defaults(options)
    138 }
    139 
    140 // Exports
    141 
    142 module.exports = request
    143 request.Request = require('./request')
    144 request.initParams = initParams
    145 
    146 // Backwards compatibility for request.debug
    147 Object.defineProperty(request, 'debug', {
    148   enumerable: true,
    149   get: function () {
    150     return request.Request.debug
    151   },
    152   set: function (debug) {
    153     request.Request.debug = debug
    154   }
    155 })