-
Notifications
You must be signed in to change notification settings - Fork 196
/
showdir.js
216 lines (184 loc) · 6.66 KB
/
showdir.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
'use strict';
var ecstatic = require('../ecstatic'),
fs = require('fs'),
path = require('path'),
he = require('he'),
etag = require('./etag'),
url = require('url'),
status = require('./status-handlers');
module.exports = function (opts, stat) {
// opts are parsed by opts.js, defaults already applied
var cache = opts.cache,
root = path.resolve(opts.root),
baseDir = opts.baseDir,
humanReadable = opts.humanReadable,
handleError = opts.handleError,
si = opts.si;
return function middleware (req, res, next) {
// Figure out the path for the file from the given url
var parsed = url.parse(req.url),
pathname = decodeURIComponent(parsed.pathname),
dir = path.normalize(
path.join(root,
path.relative(
path.join('/', baseDir),
pathname
)
)
);
fs.stat(dir, function (err, stat) {
if (err) {
return handleError ? status[500](res, next, { error: err }) : next();
}
// files are the listing of dir
fs.readdir(dir, function (err, files) {
if (err) {
return handleError ? status[500](res, next, { error: err }) : next();
}
res.setHeader('content-type', 'text/html');
res.setHeader('etag', etag(stat));
res.setHeader('last-modified', (new Date(stat.mtime)).toUTCString());
res.setHeader('cache-control', cache);
sortByIsDirectory(files, function (lolwuts, dirs, files) {
// It's possible to get stat errors for all sorts of reasons here.
// Unfortunately, our two choices are to either bail completely,
// or just truck along as though everything's cool. In this case,
// I decided to just tack them on as "??!?" items along with dirs
// and files.
//
// Whatever.
// if it makes sense to, add a .. link
if (path.resolve(dir, '..').slice(0, root.length) == root) {
return fs.stat(path.join(dir, '..'), function (err, s) {
if (err) {
return handleError ? status[500](res, next, { error: err }) : next();
}
dirs.unshift([ '..', s ]);
render(dirs, files, lolwuts);
});
}
render(dirs, files, lolwuts);
});
function sortByIsDirectory(paths, cb) {
// take the listing file names in `dir`
// returns directory and file array, each entry is
// of the array a [name, stat] tuple
var pending = paths.length,
errs = [],
dirs = [],
files = [];
if (!pending) {
return cb(errs, dirs, files);
}
paths.forEach(function (file) {
fs.stat(path.join(dir, file), function (err, s) {
if (err) {
errs.push([file, err]);
}
else if (s.isDirectory()) {
dirs.push([file, s]);
}
else {
files.push([file, s]);
}
if (--pending === 0) {
cb(errs, dirs, files);
}
});
});
}
function render(dirs, files, lolwuts) {
// each entry in the array is a [name, stat] tuple
// TODO: use stylessheets?
var html = [
'<!doctype html>',
'<html>',
' <head>',
' <meta charset="utf-8">',
' <meta name="viewport" content="width=device-width">',
' <title>Index of ' + pathname +'</title>',
' </head>',
' <body>',
'<h1>Index of ' + pathname + '</h1>'
].join('\n') + '\n';
html += '<table>';
var failed = false;
var writeRow = function (file, i) {
// render a row given a [name, stat] tuple
var isDir = file[1].isDirectory && file[1].isDirectory();
var href = parsed.pathname.replace(/\/$/, '') + '/' + encodeURI(file[0]);
// append trailing slash and query for dir entry
if (isDir) {
href += '/' + ((parsed.search)? parsed.search:'');
}
var displayName = he.encode(file[0]) + ((isDir)? '/':'');
// TODO: use stylessheets?
html += '<tr>' +
'<td><code>(' + permsToString(file[1]) + ')</code></td>' +
'<td style="text-align: right; padding-left: 1em"><code>' + sizeToString(file[1], humanReadable, si) + '</code></td>' +
'<td style="padding-left: 1em"><a href="' + href + '">' + displayName + '</a></td>' +
'</tr>\n';
};
dirs.sort(function (a, b) { return a[0].toString().localeCompare(b[0].toString()); }).forEach(writeRow);
files.sort(function (a, b) { return a.toString().localeCompare(b.toString()); }).forEach(writeRow);
lolwuts.sort(function (a, b) { return a[0].toString().localeCompare(b[0].toString()); }).forEach(writeRow);
html += '</table>\n';
html += '<br><address>Node.js ' +
process.version +
'/ <a href="https://github.com/jesusabdullah/node-ecstatic">ecstatic</a> ' +
'server running @ ' +
he.encode(req.headers.host || '') + '</address>\n' +
'</body></html>'
;
if (!failed) {
res.writeHead(200, { "Content-Type": "text/html" });
res.end(html);
}
}
});
});
};
};
function permsToString(stat) {
if (!stat.isDirectory || !stat.mode) {
return '???!!!???';
}
var dir = stat.isDirectory() ? 'd' : '-',
mode = stat.mode.toString(8);
return dir + mode.slice(-3).split('').map(function (n) {
return [
'---',
'--x',
'-w-',
'-wx',
'r--',
'r-x',
'rw-',
'rwx'
][parseInt(n, 10)];
}).join('');
}
// given a file's stat, return the size of it in string
// humanReadable: (boolean) whether to result is human readable
// si: (boolean) whether to use si (1k = 1000), otherwise 1k = 1024
// adopted from http://stackoverflow.com/a/14919494/665507
function sizeToString(stat, humanReadable, si) {
if (stat.isDirectory && stat.isDirectory()) {
return '';
}
var sizeString = '';
var bytes = stat.size;
var threshold = si ? 1000 : 1024;
if (!humanReadable || bytes < threshold) {
return bytes + 'B';
}
var units = [ 'k','M','G','T','P','E','Z','Y' ];
var u = -1;
do {
bytes /= threshold;
++u;
} while (bytes >= threshold);
var b = bytes.toFixed(1);
if (isNaN(b)) b = '??';
return b + units[u];
}