source: trip-planner-front/node_modules/parseurl/index.js@ 6fe77af

Last change on this file since 6fe77af was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

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Line 
1/*!
2 * parseurl
3 * Copyright(c) 2014 Jonathan Ong
4 * Copyright(c) 2014-2017 Douglas Christopher Wilson
5 * MIT Licensed
6 */
7
8'use strict'
9
10/**
11 * Module dependencies.
12 * @private
13 */
14
15var url = require('url')
16var parse = url.parse
17var Url = url.Url
18
19/**
20 * Module exports.
21 * @public
22 */
23
24module.exports = parseurl
25module.exports.original = originalurl
26
27/**
28 * Parse the `req` url with memoization.
29 *
30 * @param {ServerRequest} req
31 * @return {Object}
32 * @public
33 */
34
35function parseurl (req) {
36 var url = req.url
37
38 if (url === undefined) {
39 // URL is undefined
40 return undefined
41 }
42
43 var parsed = req._parsedUrl
44
45 if (fresh(url, parsed)) {
46 // Return cached URL parse
47 return parsed
48 }
49
50 // Parse the URL
51 parsed = fastparse(url)
52 parsed._raw = url
53
54 return (req._parsedUrl = parsed)
55};
56
57/**
58 * Parse the `req` original url with fallback and memoization.
59 *
60 * @param {ServerRequest} req
61 * @return {Object}
62 * @public
63 */
64
65function originalurl (req) {
66 var url = req.originalUrl
67
68 if (typeof url !== 'string') {
69 // Fallback
70 return parseurl(req)
71 }
72
73 var parsed = req._parsedOriginalUrl
74
75 if (fresh(url, parsed)) {
76 // Return cached URL parse
77 return parsed
78 }
79
80 // Parse the URL
81 parsed = fastparse(url)
82 parsed._raw = url
83
84 return (req._parsedOriginalUrl = parsed)
85};
86
87/**
88 * Parse the `str` url with fast-path short-cut.
89 *
90 * @param {string} str
91 * @return {Object}
92 * @private
93 */
94
95function fastparse (str) {
96 if (typeof str !== 'string' || str.charCodeAt(0) !== 0x2f /* / */) {
97 return parse(str)
98 }
99
100 var pathname = str
101 var query = null
102 var search = null
103
104 // This takes the regexp from https://github.com/joyent/node/pull/7878
105 // Which is /^(\/[^?#\s]*)(\?[^#\s]*)?$/
106 // And unrolls it into a for loop
107 for (var i = 1; i < str.length; i++) {
108 switch (str.charCodeAt(i)) {
109 case 0x3f: /* ? */
110 if (search === null) {
111 pathname = str.substring(0, i)
112 query = str.substring(i + 1)
113 search = str.substring(i)
114 }
115 break
116 case 0x09: /* \t */
117 case 0x0a: /* \n */
118 case 0x0c: /* \f */
119 case 0x0d: /* \r */
120 case 0x20: /* */
121 case 0x23: /* # */
122 case 0xa0:
123 case 0xfeff:
124 return parse(str)
125 }
126 }
127
128 var url = Url !== undefined
129 ? new Url()
130 : {}
131
132 url.path = str
133 url.href = str
134 url.pathname = pathname
135
136 if (search !== null) {
137 url.query = query
138 url.search = search
139 }
140
141 return url
142}
143
144/**
145 * Determine if parsed is still fresh for url.
146 *
147 * @param {string} url
148 * @param {object} parsedUrl
149 * @return {boolean}
150 * @private
151 */
152
153function fresh (url, parsedUrl) {
154 return typeof parsedUrl === 'object' &&
155 parsedUrl !== null &&
156 (Url === undefined || parsedUrl instanceof Url) &&
157 parsedUrl._raw === url
158}
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