diff options
| author | nanalelfe <nargiza.nosirova@mail.utoronto.ca> | 2016-07-28 02:20:52 +0000 |
|---|---|---|
| committer | nanalelfe <nargiza.nosirova@mail.utoronto.ca> | 2016-07-28 02:20:52 +0000 |
| commit | 4cff38c8f7b65dab1fd72ea835ea7288327d1056 (patch) | |
| tree | ac93acd69e77eef1e352af953d56238d70ea9c5d /node_modules/proxy-addr/index.js | |
| parent | e11dd98c9a55cd1742d221e3b1ea90d31e240fa8 (diff) | |
Fixed admin bug
Diffstat (limited to 'node_modules/proxy-addr/index.js')
| -rw-r--r-- | node_modules/proxy-addr/index.js | 321 |
1 files changed, 0 insertions, 321 deletions
diff --git a/node_modules/proxy-addr/index.js b/node_modules/proxy-addr/index.js deleted file mode 100644 index 0b3cf0b..0000000 --- a/node_modules/proxy-addr/index.js +++ /dev/null @@ -1,321 +0,0 @@ -/*! - * proxy-addr - * Copyright(c) 2014-2016 Douglas Christopher Wilson - * MIT Licensed - */ - -'use strict' - -/** - * Module exports. - */ - -module.exports = proxyaddr; -module.exports.all = alladdrs; -module.exports.compile = compile; - -/** - * Module dependencies. - */ - -var forwarded = require('forwarded'); -var ipaddr = require('ipaddr.js'); - -/** - * Variables. - */ - -var digitre = /^[0-9]+$/; -var isip = ipaddr.isValid; -var parseip = ipaddr.parse; - -/** - * Pre-defined IP ranges. - */ - -var ipranges = { - linklocal: ['169.254.0.0/16', 'fe80::/10'], - loopback: ['127.0.0.1/8', '::1/128'], - uniquelocal: ['10.0.0.0/8', '172.16.0.0/12', '192.168.0.0/16', 'fc00::/7'] -}; - -/** - * Get all addresses in the request, optionally stopping - * at the first untrusted. - * - * @param {Object} request - * @param {Function|Array|String} [trust] - * @api public - */ - -function alladdrs(req, trust) { - // get addresses - var addrs = forwarded(req); - - if (!trust) { - // Return all addresses - return addrs; - } - - if (typeof trust !== 'function') { - trust = compile(trust); - } - - for (var i = 0; i < addrs.length - 1; i++) { - if (trust(addrs[i], i)) continue; - - addrs.length = i + 1; - } - - return addrs; -} - -/** - * Compile argument into trust function. - * - * @param {Array|String} val - * @api private - */ - -function compile(val) { - if (!val) { - throw new TypeError('argument is required'); - } - - var trust = typeof val === 'string' - ? [val] - : val; - - if (!Array.isArray(trust)) { - throw new TypeError('unsupported trust argument'); - } - - for (var i = 0; i < trust.length; i++) { - val = trust[i]; - - if (!ipranges.hasOwnProperty(val)) { - continue; - } - - // Splice in pre-defined range - val = ipranges[val]; - trust.splice.apply(trust, [i, 1].concat(val)); - i += val.length - 1; - } - - return compileTrust(compileRangeSubnets(trust)); -} - -/** - * Compile `arr` elements into range subnets. - * - * @param {Array} arr - * @api private - */ - -function compileRangeSubnets(arr) { - var rangeSubnets = new Array(arr.length); - - for (var i = 0; i < arr.length; i++) { - rangeSubnets[i] = parseipNotation(arr[i]); - } - - return rangeSubnets; -} - -/** - * Compile range subnet array into trust function. - * - * @param {Array} rangeSubnets - * @api private - */ - -function compileTrust(rangeSubnets) { - // Return optimized function based on length - var len = rangeSubnets.length; - return len === 0 - ? trustNone - : len === 1 - ? trustSingle(rangeSubnets[0]) - : trustMulti(rangeSubnets); -} - -/** - * Parse IP notation string into range subnet. - * - * @param {String} note - * @api private - */ - -function parseipNotation(note) { - var pos = note.lastIndexOf('/'); - var str = pos !== -1 - ? note.substring(0, pos) - : note; - - if (!isip(str)) { - throw new TypeError('invalid IP address: ' + str); - } - - var ip = parseip(str); - - if (pos === -1 && ip.kind() === 'ipv6' && ip.isIPv4MappedAddress()) { - // Store as IPv4 - ip = ip.toIPv4Address(); - } - - var max = ip.kind() === 'ipv6' - ? 128 - : 32; - - var range = pos !== -1 - ? note.substring(pos + 1, note.length) - : null; - - if (range === null) { - range = max; - } else if (digitre.test(range)) { - range = parseInt(range, 10); - } else if (ip.kind() === 'ipv4' && isip(range)) { - range = parseNetmask(range); - } else { - range = null; - } - - if (range <= 0 || range > max) { - throw new TypeError('invalid range on address: ' + note); - } - - return [ip, range]; -} - -/** - * Parse netmask string into CIDR range. - * - * @param {String} netmask - * @api private - */ - -function parseNetmask(netmask) { - var ip = parseip(netmask); - var kind = ip.kind(); - - return kind === 'ipv4' - ? ip.prefixLengthFromSubnetMask() - : null; -} - -/** - * Determine address of proxied request. - * - * @param {Object} request - * @param {Function|Array|String} trust - * @api public - */ - -function proxyaddr(req, trust) { - if (!req) { - throw new TypeError('req argument is required'); - } - - if (!trust) { - throw new TypeError('trust argument is required'); - } - - var addrs = alladdrs(req, trust); - var addr = addrs[addrs.length - 1]; - - return addr; -} - -/** - * Static trust function to trust nothing. - * - * @api private - */ - -function trustNone() { - return false; -} - -/** - * Compile trust function for multiple subnets. - * - * @param {Array} subnets - * @api private - */ - -function trustMulti(subnets) { - return function trust(addr) { - if (!isip(addr)) return false; - - var ip = parseip(addr); - var ipconv; - var kind = ip.kind(); - - for (var i = 0; i < subnets.length; i++) { - var subnet = subnets[i]; - var subnetip = subnet[0]; - var subnetkind = subnetip.kind(); - var subnetrange = subnet[1]; - var trusted = ip; - - if (kind !== subnetkind) { - if (subnetkind === 'ipv4' && !ip.isIPv4MappedAddress()) { - // Incompatible IP addresses - continue; - } - - if (!ipconv) { - // Convert IP to match subnet IP kind - ipconv = subnetkind === 'ipv4' - ? ip.toIPv4Address() - : ip.toIPv4MappedAddress(); - } - - trusted = ipconv; - } - - if (trusted.match(subnetip, subnetrange)) { - return true; - } - } - - return false; - }; -} - -/** - * Compile trust function for single subnet. - * - * @param {Object} subnet - * @api private - */ - -function trustSingle(subnet) { - var subnetip = subnet[0]; - var subnetkind = subnetip.kind(); - var subnetisipv4 = subnetkind === 'ipv4'; - var subnetrange = subnet[1]; - - return function trust(addr) { - if (!isip(addr)) return false; - - var ip = parseip(addr); - var kind = ip.kind(); - - if (kind !== subnetkind) { - if (subnetisipv4 && !ip.isIPv4MappedAddress()) { - // Incompatible IP addresses - return false; - } - - // Convert IP to match subnet IP kind - ip = subnetisipv4 - ? ip.toIPv4Address() - : ip.toIPv4MappedAddress(); - } - - return ip.match(subnetip, subnetrange); - }; -} |
