├── LICENSE
├── README.md
├── main.js
├── package.json
├── rfc822.js
└── test
├── index.html
├── server.js
└── test.js
/LICENSE:
--------------------------------------------------------------------------------
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/README.md:
--------------------------------------------------------------------------------
1 | # filed -- Simplified file library.
2 |
3 | ## Install
4 |
5 |
6 | npm install filed
7 |
8 |
9 | ## Super simple to use
10 |
11 | Filed does a lazy stat call so you can actually open a file and begin writing to it and if the file isn't there it will just be created.
12 |
13 | ```javascript
14 | var filed = require('filed');
15 | var f = filed('/newfile')
16 | f.write('test')
17 | f.end()
18 | ```
19 |
20 | ## Streaming
21 |
22 | The returned file object is a stream so you can do standard stream stuff to it. Based on *what* you do the object it will be a read stream, a write stream.
23 |
24 | So if you send data to it, it'll be a write stream.
25 |
26 | ```javascript
27 | fs.createReadStream.pipe(filed('/newfile'))
28 | ```
29 |
30 | If you pipe it to a destination it'll be a read stream.
31 |
32 | ```javascript
33 | filed('/myfile').pipe(fs.createWriteStream('/out'))
34 | ```
35 |
36 | And of course you can pipe a filed object from itself to itself and it'll figure it out.
37 |
38 | ```javascript
39 | filed('/myfile').pipe(filed('/newfile'))
40 | ```
41 |
42 | Those familiar with [request](http://github.com/mikeal/request) will be familiar seeing object capability detection when doing HTTP. filed does this as well.
43 |
44 | ```javascript
45 | http.createServer(function (req, resp) {
46 | filed('/data.json').pipe(resp)
47 | })
48 | ```
49 |
50 | Not only does the JSON file get streamed to the HTTP Response it will include an Etag, Last-Modified, Content-Length, and a Content-Type header based on the filed extension.
51 |
52 | ```javascript
53 | http.createServer(function (req, resp) {
54 | req.pipe(filed('/newfile')).pipe(resp)
55 | })
56 | ```
57 |
58 | When accepting a PUT request data will be streamed to the file and a 201 status will be sent on the HTTP Response when the upload is finished.
59 |
60 | During a GET request a 404 Response will be sent if the file does not exist.
61 |
62 | ```javascript
63 | http.createServer(function (req, resp) {
64 | req.pipe(filed('/data.json')).pipe(resp)
65 | })
66 | ```
67 |
68 | The Etag and Last-Modified headers filed creates are based solely on the stat() call so if you pipe a request to an existing file the cache control headers will be taken into account; a 304 response will be sent if the cache control headers match a new stat() call. This can be very helpful in avoiding unnecessary disc reads.
69 |
70 | ```javascript
71 | http.createServer(function (req, resp) {
72 | req.pipe(filed('/directory')).pipe(resp)
73 | })
74 | ```
75 |
76 | Just to round out the full feature set and make it full file server if you give filed an existing directory it will actually check for an index.html file in that directory and serve it if it exists.
77 |
78 | ## License
79 | `ASL 2.0`, see [LICENSE](LICENSE) file.
80 |
--------------------------------------------------------------------------------
/main.js:
--------------------------------------------------------------------------------
1 | var fs = require('fs')
2 | , util = require('util')
3 | , crypto = require('crypto')
4 | , stream = require('stream')
5 | , path = require('path')
6 | , mime = require('mime')
7 | , rfc822 = require('./rfc822')
8 | ;
9 |
10 | function File (options) {
11 | stream.Stream.call(this)
12 |
13 | this.writable = true
14 | this.readable = true
15 | this.buffers = []
16 |
17 | var self = this
18 |
19 | if (typeof options === 'string') options = {path:options}
20 | if (!options.index) options.index = 'index.html'
21 | self.writable = (typeof options.writable === "undefined") ? true : options.writable
22 | self.readable = (typeof options.readable === "undefined") ? true : options.readable
23 |
24 | self.path = options.path
25 | self.index = options.index
26 |
27 | self.on('pipe', function (src) {
28 | this.src = src
29 | })
30 |
31 | this.buffering = true
32 |
33 | this.mimetype = options.mimetype || mime.getType(this.path.slice(this.path.lastIndexOf('.')+1))
34 |
35 | var stopBuffering = function () {
36 | self.buffering = false
37 | while (self.buffers.length) {
38 | self.emit('data', self.buffers.shift())
39 | }
40 | if (self.ended) self.emit('end')
41 | }
42 |
43 | fs.stat(options.path, function (err, stats) {
44 |
45 | var finish = function (err, stats) {
46 | self.stat = stats
47 | if (err && err.code === 'ENOENT' && !self.dest && !self.src) self.src = self.path
48 | if (err && !self.dest && !self.src) return self.emit('error', err)
49 | if (err && self.dest && !self.dest.writeHead) return self.emit('error', err)
50 |
51 | // See if writes are disabled
52 | if (self.src && self.src.method &&
53 | !self.writable && self.dest.writeHead &&
54 | (self.src.method === 'PUT' || self.src.method === 'POST')) {
55 | self.dest.writeHead(405, {'content-type':'text/plain'})
56 | self.dest.end(self.src.method+' Not Allowed')
57 | return
58 | }
59 |
60 | if (!err) {
61 | self.etag = crypto.createHash('md5').update(stats.ino+'/'+stats.mtime+'/'+stats.size).digest("hex")
62 | self.lastmodified = rfc822.getRFC822Date(stats.mtime)
63 | }
64 |
65 | process.nextTick(function () {
66 | stopBuffering()
67 | })
68 |
69 | // 404 and 500
70 | if ( err && self.dest && self.dest.writeHead && // We have an error object and dest is an HTTP response
71 | ( // Either we have a source and it's a GET/HEAD or we don't have a src
72 | (self.src && (self.src.method == 'GET' || self.src.method === 'HEAD')) || (!self.src)
73 | )
74 | ) {
75 | if (err.code === 'ENOENT') {
76 | self.dest.statusCode = 404
77 | self.dest.end('Not Found')
78 | } else {
79 | self.dest.statusCode = 500
80 | self.dest.end(err.message)
81 | }
82 | return
83 | }
84 |
85 | // Source is an HTTP Server Request
86 | if (self.src && (self.src.method === 'GET' || self.src.method === 'HEAD') && self.dest) {
87 | if (self.dest.setHeader) {
88 | self.dest.setHeader('content-type', self.mimetype)
89 | self.dest.setHeader('etag', self.etag)
90 | self.dest.setHeader('last-modified', self.lastmodified)
91 | }
92 |
93 | if (self.dest.writeHead) {
94 | if (self.src && self.src.headers) {
95 | if (self.src.headers['if-none-match'] === self.etag ||
96 | // Lazy last-modifed matching but it's faster than parsing Datetime
97 | self.src.headers['if-modified-since'] === self.lastmodified) {
98 | self.dest.statusCode = 304
99 | self.dest.end()
100 | return
101 | }
102 | }
103 | // We're going to return the whole file
104 | self.dest.statusCode = 200
105 | self.dest.setHeader('content-length', stats.size)
106 | } else {
107 | // Destination is not an HTTP response, GET and HEAD method are not allowed
108 | return
109 | }
110 |
111 | if (self.src.method !== 'HEAD') {
112 | fs.createReadStream(self.path).pipe(self.dest)
113 | }
114 | return
115 | }
116 |
117 | if (self.src && (self.src.method === 'PUT' || self.src.method === 'POST')) {
118 | if (!err) {
119 | // TODO handle overwrite case
120 | return
121 | }
122 | stream.Stream.prototype.pipe.call(self, fs.createWriteStream(self.path))
123 | if (self.dest && self.dest.writeHead) {
124 | self.on('end', function () {
125 | self.dest.statusCode = 201
126 | self.dest.setHeader('content-length', 0)
127 | self.dest.end()
128 | })
129 | }
130 | return
131 | }
132 |
133 | // Desination is an HTTP response, we already handled 404 and 500
134 | if (self.dest && self.dest.writeHead) {
135 | self.dest.statusCode = 200
136 | self.dest.setHeader('content-type', self.mimetype)
137 | self.dest.setHeader('etag', self.etag)
138 | self.dest.setHeader('last-modified', self.lastmodified)
139 | self.dest.setHeader('content-length', stats.size)
140 | fs.createReadStream(self.path).pipe(self.dest)
141 | return
142 | }
143 |
144 | // Destination is not an HTTP request
145 |
146 | if (self.src && !self.dest) {
147 | stream.Stream.prototype.pipe.call(self, fs.createWriteStream(self.path))
148 | } else if (self.dest && !self.src) {
149 | fs.createReadStream(self.path).pipe(self.dest)
150 | }
151 | }
152 |
153 | if (!err && stats.isDirectory()) {
154 | self.path = path.join(self.path, self.index)
155 | self.mimetype = mime.getType(self.path.slice(self.path.lastIndexOf('.')+1))
156 | fs.stat(self.path, finish)
157 | return
158 | } else {
159 | finish(err, stats)
160 | }
161 |
162 | if (!self.src && !self.dest) {
163 | if (self.buffers.length > 0) {
164 | stream.Stream.prototype.pipe.call(self, fs.createWriteStream(self.path))
165 | } else if (self.listeners('data').length > 0) {
166 | fs.createReadStream(self.path).pipe(self.dest)
167 | } else {
168 | fs.createReadStream(self.path).pipe(self)
169 | }
170 | }
171 |
172 | })
173 |
174 | }
175 | util.inherits(File, stream.Stream)
176 | File.prototype.pipe = function (dest, options) {
177 | this.dest = dest
178 | this.destOptions = options
179 | dest.emit('pipe', this)
180 | // stream.Stream.prototype.pipe.call(this, dest, options)
181 | return dest
182 | }
183 | File.prototype.write = function (chunk, encoding) {
184 | if (encoding) chunk = chunk.toString(encoding)
185 | if (this.buffering) {
186 | this.buffers.push(chunk)
187 | } else {
188 | this.emit('data', chunk)
189 | }
190 | }
191 | File.prototype.end = function (chunk) {
192 | if (chunk) this.write(chunk)
193 | if (this.buffering) {
194 | this.ended = true
195 | } else {
196 | this.emit('end')
197 | }
198 | }
199 |
200 | module.exports = function (options) {
201 | return new File(options)
202 | }
203 | module.exports.File = File
204 |
--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
1 | {
2 | "name": "filed",
3 | "description": "Simplified file library.",
4 | "version": "0.2.1",
5 | "repository": {
6 | "type": "git",
7 | "url": "git://github.com/mikeal/filed.git"
8 | },
9 | "author": "Mikeal Rogers ",
10 | "engines": {
11 | "node": "*"
12 | },
13 | "license": "ASL 2.0",
14 | "dependencies": {
15 | "mime": "1.2.6"
16 | },
17 | "scripts": {
18 | "test": "node test/test.js"
19 | },
20 | "main": "./main"
21 | }
22 |
--------------------------------------------------------------------------------
/rfc822.js:
--------------------------------------------------------------------------------
1 | // Support for rfc822, worst standard EVAR!
2 |
3 | // require('./date')
4 |
5 | function getRFC822Date(oDate)
6 | {
7 | var aMonths = new Array("Jan", "Feb", "Mar", "Apr", "May", "Jun",
8 | "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
9 |
10 | var aDays = new Array( "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
11 | var dtm = new String();
12 |
13 | dtm = aDays[oDate.getDay()] + ", ";
14 | dtm += padWithZero(oDate.getDate()) + " ";
15 | dtm += aMonths[oDate.getMonth()] + " ";
16 | dtm += oDate.getFullYear() + " ";
17 | dtm += padWithZero(oDate.getHours()) + ":";
18 | dtm += padWithZero(oDate.getMinutes()) + ":";
19 | dtm += padWithZero(oDate.getSeconds()) + " " ;
20 | dtm += getTZOString(oDate.getTimezoneOffset());
21 | return dtm;
22 | }
23 | //Pads numbers with a preceding 0 if the number is less than 10.
24 | function padWithZero(val)
25 | {
26 | if (parseInt(val) < 10)
27 | {
28 | return "0" + val;
29 | }
30 | return val;
31 | }
32 |
33 | /* accepts the client's time zone offset from GMT in minutes as a parameter.
34 | returns the timezone offset in the format [+|-}DDDD */
35 | function getTZOString(timezoneOffset)
36 | {
37 | var hours = Math.floor(timezoneOffset/60);
38 | var modMin = Math.abs(timezoneOffset%60);
39 | var s = new String();
40 | s += (hours > 0) ? "-" : "+";
41 | var absHours = Math.abs(hours)
42 | s += (absHours < 10) ? "0" + absHours :absHours;
43 | s += ((modMin == 0) ? "00" : modMin);
44 | return(s);
45 | }
46 |
47 | exports.getRFC822Date = getRFC822Date;
48 |
--------------------------------------------------------------------------------
/test/index.html:
--------------------------------------------------------------------------------
1 | test
--------------------------------------------------------------------------------
/test/server.js:
--------------------------------------------------------------------------------
1 | var http = require('http')
2 |
3 | function createServer () {
4 | var s = http.createServer(function (req, resp) {
5 | resp.___end = resp.end
6 | resp.end = function (chunk) {
7 | s.completed[req.url] = true
8 | resp.___end(chunk)
9 | if (Object.keys(s._events).filter(function(n){return n[0] === '/'}).length === Object.keys(s.completed).length) {
10 | setTimeout(function () {
11 | s.close()
12 | }, 0)
13 | }
14 | }
15 | s.emit(req.url, req, resp)
16 | })
17 | s.completed = {}
18 | return s;
19 | }
20 | module.exports = createServer;
--------------------------------------------------------------------------------
/test/test.js:
--------------------------------------------------------------------------------
1 | var filed = require('../main')
2 | , server = require('./server')
3 | , fs = require('fs')
4 | , path = require('path')
5 | , assert = require('assert')
6 | , request = require('request')
7 | , test1buffer = ''
8 | , testfile = path.join(__dirname, 'test.js')
9 | , writefile = path.join(__dirname, 'testdump-')
10 | , cleanup = []
11 | , validations = []
12 | , port = 9090
13 | , i = 0
14 | , url = 'http://localhost:'+port
15 | ;
16 |
17 | while (i < 50) {
18 | try {fs.unlinkSync(writefile+i)}
19 | catch (e) {}
20 | i += 1
21 | }
22 |
23 | function FileValidator (path) {
24 | this.path = path
25 | this.buffers = []
26 | this.len = 0
27 | this.writable = true
28 | }
29 | FileValidator.prototype.write = function (chunk) {
30 | this.buffers.push(chunk)
31 | this.len += chunk.length
32 | }
33 | FileValidator.prototype.end = function () {
34 | var body = new Buffer(this.len)
35 | var i = 0
36 | this.buffers.forEach(function (chunk) {
37 | chunk.copy(body, i, 0, chunk.length)
38 | i += chunk.length
39 | })
40 | var f = fs.readFileSync(this.path)
41 | assert.equal(body.length, f.length)
42 | assert.deepEqual(body, f)
43 | }
44 | FileValidator.prototype.on = function () {}
45 | FileValidator.prototype.removeListener = function () {}
46 | FileValidator.prototype.emit = function () {}
47 |
48 | function equalSync (f1, f2) {
49 | f1 = fs.readFileSync(f1)
50 | f2 = fs.readFileSync(f2)
51 | assert.equal(f1.length, f2.length)
52 | assert.deepEqual(f1, f2)
53 | }
54 |
55 | // Test reading
56 | filed(testfile).pipe(new FileValidator(testfile))
57 |
58 | // Test writing
59 |
60 | function testwrites () {
61 | var x = filed(writefile+1)
62 | , y = fs.createReadStream(testfile)
63 | ;
64 | y.pipe(x)
65 | x.on('end', function () {
66 | setTimeout(function () {
67 | equalSync(writefile+1, testfile)
68 | console.log("Passed writing files")
69 | }, 1000)
70 | })
71 | }
72 | testwrites()
73 |
74 | function testhttp () {
75 | // Test HTTP use cases
76 | var s = server()
77 | s.on('/test-req', function (req, resp) {
78 | // Take a request and write it, do not send filed to the response
79 | req.pipe(filed(writefile+2))
80 | req.on('end', function () {
81 | resp.writeHead(201)
82 | resp.end()
83 | setTimeout(function () {
84 | equalSync(writefile+2, testfile)
85 | console.log("Passed PUT file with pipe req only")
86 | }, 1000)
87 | })
88 | })
89 |
90 | s.on('/test-req-resp', function (req, resp) {
91 | // Take a request and write it and pipe filed to the response
92 | var x = filed(writefile+3)
93 | req.pipe(x)
94 | x.pipe(resp)
95 | req.on('end', function () {
96 | setTimeout(function () {
97 | equalSync(writefile+3, testfile)
98 | console.log("Passed PUT file with pipe req and resp")
99 | }, 1000)
100 | })
101 | })
102 |
103 | s.on('/test-resp', function (req, resp) {
104 | // Send a file to an HTTP response
105 | filed(testfile).pipe(resp)
106 | })
107 |
108 | var fullpipe = function (req, resp) {
109 | var x = filed(testfile)
110 | req.pipe(x)
111 | x.pipe(resp)
112 | }
113 |
114 | s.on('/test-etags-wo', function (req, resp) {
115 | fullpipe(req, resp)
116 | })
117 | s.on('/test-etags-with', function (req, resp) {
118 | fullpipe(req, resp)
119 | })
120 |
121 | s.on('/test-lastmodified-wo', function (req, resp) {
122 | fullpipe(req, resp)
123 | })
124 | s.on('/test-lastmodified-with', function (req, resp) {
125 | fullpipe(req, resp)
126 | })
127 |
128 | s.on('/test-index', function (req, resp) {
129 | var x = filed(__dirname)
130 | x.pipe(resp)
131 | })
132 |
133 | s.on('/test-index-full', function (req, resp) {
134 | var x = filed(__dirname)
135 | req.pipe(x)
136 | x.pipe(resp)
137 | })
138 |
139 | s.on('/test-not-found', function (req, resp) {
140 | var x = filed(__dirname + "/there-is-no-such-file-here.no-extension")
141 | req.pipe(x)
142 | x.pipe(resp)
143 | })
144 |
145 | s.listen(port, function () {
146 |
147 | fs.createReadStream(testfile).pipe(request.put(url+'/test-req'))
148 |
149 | fs.createReadStream(testfile).pipe(request.put(url+'/test-req-resp', function (e, resp) {
150 | assert.equal(resp.statusCode, 201)
151 | assert.equal(resp.headers['content-length'], '0')
152 | }))
153 |
154 | var x = request.get(url+'/test-resp', function (e, resp) {
155 | if (e) throw e
156 | assert.equal(resp.statusCode, 200)
157 | assert.equal(resp.headers['content-type'], 'application/javascript')
158 | console.log("Passed GET file without piping request")
159 | })
160 | x.pipe(new FileValidator(testfile))
161 |
162 | request.get(url+'/test-etags-wo', function (e, resp, body) {
163 | if (e) throw e
164 | if (resp.statusCode !== 200) throw new Error('Status code is not 200 it is '+resp.statusCode)
165 | request.get({url:url+'/test-etags-with', headers:{'if-none-match':resp.headers.etag}}, function (e, resp) {
166 | if (e) throw e
167 | if (resp.statusCode !== 304) throw new Error('Status code is not 304 it is '+resp.statusCode)
168 | console.log("Passed GET with etag")
169 | })
170 | })
171 |
172 | request.get(url+'/test-lastmodified-wo', function (e, resp, body) {
173 | if (e) throw e
174 | if (resp.statusCode !== 200) throw new Error('Status code is not 200 it is '+resp.statusCode)
175 | request.get({url:url+'/test-lastmodified-with', headers:{'if-modified-since':resp.headers['last-modified']}}, function (e, resp) {
176 | if (e) throw e
177 | if (resp.statusCode !== 304) throw new Error('Status code is not 304 it is '+resp.statusCode)
178 | console.log("Passed GET with if-modified-since")
179 | })
180 | })
181 |
182 | request.get(url+'/test-index', function (e, resp, body) {
183 | if (e) throw e
184 | if (resp.statusCode !== 200) throw new Error('Status code is not 200 it is '+resp.statusCode)
185 | assert.equal(resp.headers['content-type'], 'text/html')
186 | assert.equal(body, fs.readFileSync(path.join(__dirname, 'index.html')).toString())
187 | console.log("Passed GET of directory index")
188 | })
189 |
190 | request.get(url+'/test-index-full', function (e, resp, body) {
191 | if (e) throw e
192 | if (resp.statusCode !== 200) throw new Error('Status code is not 200 it is '+resp.statusCode)
193 | assert.equal(resp.headers['content-type'], 'text/html')
194 | assert.equal(body, fs.readFileSync(path.join(__dirname, 'index.html')).toString())
195 | console.log("Passed GET of directory index, full pipe")
196 | })
197 |
198 | request.get(url+'/test-not-found', function (e, resp, body) {
199 | if (e) throw e
200 | if (resp.statusCode !== 404) throw new Error('Status code is not 404 it is '+resp.statusCode)
201 | console.log("Passed Not Found produces 404")
202 | })
203 |
204 | })
205 |
206 | }
207 | testhttp()
208 |
209 | process.on('exit', function () {console.log('All tests passed.')})
210 |
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