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serve.js
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serve.js
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// servedir HTTP Server
// http://github.com/rem/servedir
// Copyright 2011, Remy Sharp
// http://remysharp.com
// Convenience aliases.
var createServer = require('http').createServer, parse = require('url').parse, path = require('path'), fs = require('fs'), types,
// Matches control characters in URLs.
escapable = /[\x00-\x1f\x7f"'&?$\x20+,:;=@<>#%{}|\\\^~\[\]`]/g,
// Escape sequences and entities for control characters.
escapes = {
'&': '&',
'<': '<',
'>': '>',
'"': '"',
'\'': '''
};
fs.exists || (fs.exists = path.exists);
// The `servedir` function creates a new simple HTTP server.
var servedir = module.exports = function (routerPath, root, handler) {
return function(req, res, next) {
// Resolve the path to the requested file or folder.
var end = res.end,
writeHead = res.writeHead,
statusCode;
var pathname = decodeURIComponent(parse(req.url).pathname),
file = path.join(root, pathname);
if (pathname.indexOf(routerPath) !== 0) {
return next();
}
// yes. hard coded. nasty. filth. just remember to remove me when you go
// viral. -- anon.
if (file === 'public/www/') {
file = 'public/www/index.html';
}
fs.exists(file, function(exists) {
if (!exists) {
next();
} else {
// Serve files and directories.
fs.stat(file, function(err, stats) {
if (err) {
// Internal server error; avoid throwing an exception.
next();
} else if (stats.isFile()) {
// Read and serve files.
res.statusCode = 200;
// Set the correct MIME type using the extension.
var ext = path.extname(file).slice(1);
res.setHeader('Content-Type', types[ext] || servedir.defaultType);
var content = '';
fs.createReadStream(file).on('error', function(err) {
// Internal server error; avoid throwing an exception.
next(new Error('An internal server error occurred: ' + err));
}).on('data', function (chunk) {
content += chunk;
}).on('end', function () {
res.end(handler(content));
});
} else {
// Automatically append a trailing slash for directories.
if (pathname.charAt(pathname.length - 1) != '/') pathname += '/';
fs.readdir(file, function(err, files) {
if (err) {
res.writeHead(500, {'Content-Type': 'text/plain'});
res.write('An internal server error occurred: ' + err);
} else {
// Create a basic directory listing.
files = files.map(function(name) {
// URL-encode the path to each file or directory.
return '<a href="' + (pathname + name).replace(escapable, function(match) {
// Cache escape sequences not already in the escapes hash.
return escapes[match] || (escapes[match] = '%' + match.charCodeAt(0).toString(16));
}) + '">' + name + '</a>';
});
// Add a link to the root directory.
if (pathname != '/') files.unshift('<a href="..">..</a>');
res.writeHead(200, {'Content-Type': 'text/html'});
res.write('<!DOCTYPE html><meta charset=utf-8><title>[dir] ' + file + '</title><ul><li>' + files.join('<li>') + '</ul>');
}
res.end();
});
}
});
}
});
};
};
// The current version of `servedir`. Keep in sync with `package.json`.
servedir.version = '0.1.10';
// The default MIME type, root directory, and port.
servedir.defaultType = 'application/octet-stream';
servedir.defaultRoot = '.';
servedir.defaultPort = 8000;
// Common MIME types.
servedir.types = types = {
'aiff': 'audio/x-aiff',
'appcache': 'text/cache-manifest',
'atom': 'application/atom+xml',
'bmp': 'image/bmp',
'crx': 'application/x-chrome-extension',
'css': 'text/css',
'eot': 'application/vnd.ms-fontobject',
'gif': 'image/gif',
'htc': 'text/x-component',
'html': 'text/html',
'ico': 'image/vnd.microsoft.icon',
'ics': 'text/calendar',
'jpeg': 'image/jpeg',
'js': 'text/javascript',
'json': 'application/json',
'mathml': 'application/mathml+xml',
'midi': 'audio/midi',
'mov': 'video/quicktime',
'mp3': 'audio/mpeg',
'mp4': 'video/mp4',
'mpeg': 'video/mpeg',
'ogg': 'video/ogg',
'otf': 'font/opentype',
'pdf': 'application/pdf',
'png': 'image/png',
'rtf': 'application/rtf',
'sh': 'application/x-sh',
'svg': 'image/svg+xml',
'swf': 'application/x-shockwave-flash',
'tar': 'application/x-tar',
'tiff': 'image/tiff',
'ttf': 'font/truetype',
'txt': 'text/plain',
'wav': 'audio/x-wav',
'webm': 'video/webm',
'webp': 'image/webp',
'woff': 'font/woff',
'xhtml': 'application/xhtml+xml',
'xml': 'text/xml',
'xsl': 'application/xml',
'xslt': 'application/xslt+xml',
'zip': 'application/zip'
};
// MIME type aliases for different extensions.
types.aif = types.aiff;
types.htm = types.html;
types.jpe = types.jpg = types.jpeg;
types.jsonp = types.js;
types.manifest = types.appcache;
types.markdown = types.markdn = types.mdown = types.mdml = types.md = types.txt;
types.mid = types.midi;
types.mpg = types.mpeg;
types.ogv = types.ogg;
types.rb = types.txt;
types.svgz = types.svg;
types.tif = types.tiff;
types.xht = types.xhtml;
types.php = types.html;