├── package.json
├── README.md
├── index.js
├── test.js
└── LICENSE


/package.json:
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 1 | {
 2 |   "name": "caseless",
 3 |   "version": "0.12.1",
 4 |   "description": "Caseless object set/get/has/del, very useful when working with HTTP headers.",
 5 |   "main": "index.js",
 6 |   "scripts": {
 7 |     "test": "node test.js"
 8 |   },
 9 |   "repository": {
10 |     "type": "git",
11 |     "url": "https://github.com/mikeal/caseless"
12 |   },
13 |   "keywords": [
14 |     "headers",
15 |     "http",
16 |     "caseless"
17 |   ],
18 |   "test": "node test.js",
19 |   "author": "Mikeal Rogers <mikeal.rogers@gmail.com>",
20 |   "license": "Apache-2.0",
21 |   "bugs": {
22 |     "url": "https://github.com/mikeal/caseless/issues"
23 |   },
24 |   "devDependencies": {
25 |     "tape": "^2.10.2"
26 |   }
27 | }
28 | 


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/README.md:
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 1 | ## Caseless -- wrap an object to set and get property with caseless semantics but also preserve caseing.
 2 | 
 3 | This library is incredibly useful when working with HTTP headers. It allows you to get/set/check/delete headers in a caseless manner while also preserving the headers' case when they are first set.
 4 | 
 5 | ## Usage
 6 | 
 7 | ```javascript
 8 | var headers = {}
 9 |   , c = caseless(headers)
10 |   ;
11 | c.set('a-Header', 'asdf')
12 | c.get('a-header') === 'asdf'
13 | ```
14 | 
15 | ## has(key)
16 | 
17 | Has takes a name and if it finds a matching header will return that header name with the preserved caseing it was set with.
18 | 
19 | ```javascript
20 | c.has('a-header') === 'a-Header'
21 | ```
22 | 
23 | ## set(key, value[, clobber=true])
24 | 
25 | Set is fairly straight forward except that if the header exists and clobber is disabled it will add `','+value` to the existing header.
26 | 
27 | ```javascript
28 | c.set('a-Header', 'fdas')
29 | c.set('a-HEADER', 'more', false)
30 | c.get('a-header') === 'fdsa,more'
31 | ```
32 | 
33 | ## swap(key)
34 | 
35 | Swaps the casing of a header with the new one that is passed in.
36 | 
37 | ```javascript
38 | var headers = {}
39 |   , c = caseless(headers)
40 |   ;
41 | c.set('a-Header', 'fdas')
42 | c.swap('a-HEADER')
43 | c.has('a-header') === 'a-HEADER'
44 | headers === {'a-HEADER': 'fdas'}
45 | ```
46 | 
47 | ## del(key)
48 | 
49 | Deletes a key and, if there's many instances of the key with multiple cases, all of them.
50 | 
51 | ```javascript
52 | 
53 | var headers = {
54 |   'a-Header': true,
55 |   'content-length': 312,
56 |   'Content-Length': 312
57 | }
58 | var c = caseless(headers);
59 | 
60 | c.del('Content-length');
61 | headers === {
62 |   'a-Header': true
63 | };
64 | 
65 | ```
66 | 


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/index.js:
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 1 | function Caseless (dict) {
 2 |   this.dict = dict || {}
 3 | }
 4 | Caseless.prototype.set = function (name, value, clobber) {
 5 |   if (typeof name === 'object') {
 6 |     for (var i in name) {
 7 |       this.set(i, name[i], value)
 8 |     }
 9 |   } else {
10 |     if (typeof clobber === 'undefined') clobber = true
11 |     var has = this.has(name)
12 | 
13 |     if (!clobber && has) this.dict[has] = this.dict[has] + ',' + value
14 |     else this.dict[has || name] = value
15 |     return has
16 |   }
17 | }
18 | Caseless.prototype.has = function (name) {
19 |   var keys = Object.keys(this.dict)
20 |     , name = name.toLowerCase()
21 |     ;
22 |   for (var i=0;i<keys.length;i++) {
23 |     if (keys[i].toLowerCase() === name) return keys[i]
24 |   }
25 |   return false
26 | }
27 | Caseless.prototype.get = function (name) {
28 |   name = name.toLowerCase()
29 |   var result, _key
30 |   var headers = this.dict
31 |   Object.keys(headers).forEach(function (key) {
32 |     _key = key.toLowerCase()
33 |     if (name === _key) result = headers[key]
34 |   })
35 |   return result
36 | }
37 | Caseless.prototype.swap = function (name) {
38 |   var has = this.has(name)
39 |   if (has === name) return
40 |   if (!has) throw new Error('There is no header than matches "'+name+'"')
41 |   this.dict[name] = this.dict[has]
42 |   delete this.dict[has]
43 | }
44 | Caseless.prototype.del = function (name) {
45 |   name = String(name).toLowerCase()
46 |   var deleted = false
47 |   var changed = 0
48 |   var dict = this.dict
49 |   Object.keys(this.dict).forEach(function(key) {
50 |     if (name === String(key).toLowerCase()) {
51 |       deleted = delete dict[key]
52 |       changed += 1
53 |     }
54 |   })
55 |   return changed === 0 ? true : deleted
56 | }
57 | 
58 | module.exports = function (dict) {return new Caseless(dict)}
59 | module.exports.httpify = function (resp, headers) {
60 |   var c = new Caseless(headers)
61 |   resp.setHeader = function (key, value, clobber) {
62 |     if (typeof value === 'undefined') return
63 |     return c.set(key, value, clobber)
64 |   }
65 |   resp.hasHeader = function (key) {
66 |     return c.has(key)
67 |   }
68 |   resp.getHeader = function (key) {
69 |     return c.get(key)
70 |   }
71 |   resp.removeHeader = function (key) {
72 |     return c.del(key)
73 |   }
74 |   resp.headers = c.dict
75 |   return c
76 | }
77 | 


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/test.js:
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 1 | var tape = require('tape')
 2 |   , caseless = require('./')
 3 |   ;
 4 | 
 5 | tape('set get has', function (t) {
 6 |   var headers = {}
 7 |     , c = caseless(headers)
 8 |     ;
 9 |   t.plan(17)
10 |   c.set('a-Header', 'asdf')
11 |   t.equal(c.get('a-header'), 'asdf')
12 |   t.equal(c.has('a-header'), 'a-Header')
13 |   t.ok(!c.has('nothing'))
14 |   // old bug where we used the wrong regex
15 |   t.ok(!c.has('a-hea'))
16 |   c.set('a-header', 'fdsa')
17 |   t.equal(c.get('a-header'), 'fdsa')
18 |   t.equal(c.get('a-Header'), 'fdsa')
19 |   c.set('a-HEADER', 'more', false)
20 |   t.equal(c.get('a-header'), 'fdsa,more')
21 | 
22 |   t.deepEqual(headers, {'a-Header': 'fdsa,more'})
23 |   c.swap('a-HEADER')
24 |   t.deepEqual(headers, {'a-HEADER': 'fdsa,more'})
25 | 
26 |   c.set('deleteme', 'foobar')
27 |   t.ok(c.has('deleteme'))
28 |   t.ok(c.del('deleteme'))
29 |   t.notOk(c.has('deleteme'))
30 |   t.notOk(c.has('idonotexist'))
31 |   t.ok(c.del('idonotexist'))
32 | 
33 |   c.set('tva', 'test1')
34 |   c.set('tva-header', 'test2')
35 |   t.equal(c.has('tva'), 'tva')
36 |   t.notOk(c.has('header'))
37 | 
38 |   t.equal(c.get('tva'), 'test1')
39 | 
40 | })
41 | 
42 | tape('swap', function (t) {
43 |   var headers = {}
44 |     , c = caseless(headers)
45 |     ;
46 |   t.plan(4)
47 |   // No Header to Swap.
48 |   t.throws(function () {
49 |     c.swap('content-type')
50 |   })
51 |   // Set Header.
52 |   c.set('content-type', 'application/json')
53 |   // Swap Header With Itself.
54 |   c.swap('content-type')
55 |   // Does Not Delete Itself.
56 |   t.ok(c.has('content-type'))
57 |   // Swap Header With a Different Header.
58 |   c.swap('Content-Type')
59 |   // Still Has Header.
60 |   t.ok(c.has('Content-Type'))
61 |   // Delete Header.
62 |   c.del('Content-Type')
63 |   // No Header to Swap.
64 |   t.throws(function () {
65 |     c.swap('content-type')
66 |   })
67 | })
68 | 
69 | tape('del', function (t) {
70 |   var headers = {
71 |     'X-Random-Header': 'X',
72 |     'Content-Type': 'A',
73 |     'content-type': 'B'
74 |   }
75 |   var c = caseless(headers)
76 |   t.plan(4)
77 |   // Both headers should still be there
78 |   t.ok(c.has('X-Random-Header'))
79 |   t.ok(c.has('Content-Type'))
80 |   // Del should delete them all
81 |   c.del('Content-type')
82 |   t.ok(!c.has('Content-type'))
83 |   t.deepEqual(headers, {'X-Random-Header': 'X'})
84 | });
85 | 


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/LICENSE:
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 2 | Version 2.0, January 2004
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