Change endpoint from persons to people

backend/apis/nodejs/node_modules/ipaddr.js/LICENSE

@@ -0,0 +1,19 @@
+Copyright (C) 2011-2017 whitequark <whitequark@whitequark.org>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

backend/apis/nodejs/node_modules/ipaddr.js/README.md

@@ -0,0 +1,233 @@
+# ipaddr.js — an IPv6 and IPv4 address manipulation library [![Build Status](https://travis-ci.org/whitequark/ipaddr.js.svg)](https://travis-ci.org/whitequark/ipaddr.js)
+
+ipaddr.js is a small (1.9K minified and gzipped) library for manipulating
+IP addresses in JavaScript environments. It runs on both CommonJS runtimes
+(e.g. [nodejs]) and in a web browser.
+
+ipaddr.js allows you to verify and parse string representation of an IP
+address, match it against a CIDR range or range list, determine if it falls
+into some reserved ranges (examples include loopback and private ranges),
+and convert between IPv4 and IPv4-mapped IPv6 addresses.
+
+[nodejs]: http://nodejs.org
+
+## Installation
+
+`npm install ipaddr.js`
+
+or
+
+`bower install ipaddr.js`
+
+## API
+
+ipaddr.js defines one object in the global scope: `ipaddr`. In CommonJS,
+it is exported from the module:
+
+```js
+var ipaddr = require('ipaddr.js');
+```
+
+The API consists of several global methods and two classes: ipaddr.IPv6 and ipaddr.IPv4.
+
+### Global methods
+
+There are three global methods defined: `ipaddr.isValid`, `ipaddr.parse` and
+`ipaddr.process`. All of them receive a string as a single parameter.
+
+The `ipaddr.isValid` method returns `true` if the address is a valid IPv4 or
+IPv6 address, and `false` otherwise. It does not throw any exceptions.
+
+The `ipaddr.parse` method returns an object representing the IP address,
+or throws an `Error` if the passed string is not a valid representation of an
+IP address.
+
+The `ipaddr.process` method works just like the `ipaddr.parse` one, but it
+automatically converts IPv4-mapped IPv6 addresses to their IPv4 counterparts
+before returning. It is useful when you have a Node.js instance listening
+on an IPv6 socket, and the `net.ivp6.bindv6only` sysctl parameter (or its
+equivalent on non-Linux OS) is set to 0. In this case, you can accept IPv4
+connections on your IPv6-only socket, but the remote address will be mangled.
+Use `ipaddr.process` method to automatically demangle it.
+
+### Object representation
+
+Parsing methods return an object which descends from `ipaddr.IPv6` or
+`ipaddr.IPv4`. These objects share some properties, but most of them differ.
+
+#### Shared properties
+
+One can determine the type of address by calling `addr.kind()`. It will return
+either `"ipv6"` or `"ipv4"`.
+
+An address can be converted back to its string representation with `addr.toString()`.
+Note that this method:
+ * does not return the original string used to create the object (in fact, there is
+   no way of getting that string)
+ * returns a compact representation (when it is applicable)
+
+A `match(range, bits)` method can be used to check if the address falls into a
+certain CIDR range.
+Note that an address can be (obviously) matched only against an address of the same type.
+
+For example:
+
+```js
+var addr = ipaddr.parse("2001:db8:1234::1");
+var range = ipaddr.parse("2001:db8::");
+
+addr.match(range, 32); // => true
+```
+
+Alternatively, `match` can also be called as `match([range, bits])`. In this way,
+it can be used together with the `parseCIDR(string)` method, which parses an IP
+address together with a CIDR range.
+
+For example:
+
+```js
+var addr = ipaddr.parse("2001:db8:1234::1");
+
+addr.match(ipaddr.parseCIDR("2001:db8::/32")); // => true
+```
+
+A `range()` method returns one of predefined names for several special ranges defined
+by IP protocols. The exact names (and their respective CIDR ranges) can be looked up
+in the source: [IPv6 ranges] and [IPv4 ranges]. Some common ones include `"unicast"`
+(the default one) and `"reserved"`.
+
+You can match against your own range list by using
+`ipaddr.subnetMatch(address, rangeList, defaultName)` method. It can work with a mix of IPv6 or IPv4 addresses, and accepts a name-to-subnet map as the range list. For example:
+
+```js
+var rangeList = {
+  documentationOnly: [ ipaddr.parse('2001:db8::'), 32 ],
+  tunnelProviders: [
+    [ ipaddr.parse('2001:470::'), 32 ], // he.net
+    [ ipaddr.parse('2001:5c0::'), 32 ]  // freenet6
+  ]
+};
+ipaddr.subnetMatch(ipaddr.parse('2001:470:8:66::1'), rangeList, 'unknown'); // => "tunnelProviders"
+```
+
+The addresses can be converted to their byte representation with `toByteArray()`.
+(Actually, JavaScript mostly does not know about byte buffers. They are emulated with
+arrays of numbers, each in range of 0..255.)
+
+```js
+var bytes = ipaddr.parse('2a00:1450:8007::68').toByteArray(); // ipv6.google.com
+bytes // => [42, 0x00, 0x14, 0x50, 0x80, 0x07, 0x00, <zeroes...>, 0x00, 0x68 ]
+```
+
+The `ipaddr.IPv4` and `ipaddr.IPv6` objects have some methods defined, too. All of them
+have the same interface for both protocols, and are similar to global methods.
+
+`ipaddr.IPvX.isValid(string)` can be used to check if the string is a valid address
+for particular protocol, and `ipaddr.IPvX.parse(string)` is the error-throwing parser.
+
+`ipaddr.IPvX.isValid(string)` uses the same format for parsing as the POSIX `inet_ntoa` function, which accepts unusual formats like `0xc0.168.1.1` or `0x10000000`. The function `ipaddr.IPv4.isValidFourPartDecimal(string)` validates the IPv4 address and also ensures that it is written in four-part decimal format.
+
+[IPv6 ranges]: https://github.com/whitequark/ipaddr.js/blob/master/src/ipaddr.coffee#L186
+[IPv4 ranges]: https://github.com/whitequark/ipaddr.js/blob/master/src/ipaddr.coffee#L71
+
+#### IPv6 properties
+
+Sometimes you will want to convert IPv6 not to a compact string representation (with
+the `::` substitution); the `toNormalizedString()` method will return an address where
+all zeroes are explicit.
+
+For example:
+
+```js
+var addr = ipaddr.parse("2001:0db8::0001");
+addr.toString(); // => "2001:db8::1"
+addr.toNormalizedString(); // => "2001:db8:0:0:0:0:0:1"
+```
+
+The `isIPv4MappedAddress()` method will return `true` if this address is an IPv4-mapped
+one, and `toIPv4Address()` will return an IPv4 object address.
+
+To access the underlying binary representation of the address, use `addr.parts`.
+
+```js
+var addr = ipaddr.parse("2001:db8:10::1234:DEAD");
+addr.parts // => [0x2001, 0xdb8, 0x10, 0, 0, 0, 0x1234, 0xdead]
+```
+
+A IPv6 zone index can be accessed via `addr.zoneId`:
+
+```js
+var addr = ipaddr.parse("2001:db8::%eth0");
+addr.zoneId // => 'eth0'
+```
+
+#### IPv4 properties
+
+`toIPv4MappedAddress()` will return a corresponding IPv4-mapped IPv6 address.
+
+To access the underlying representation of the address, use `addr.octets`.
+
+```js
+var addr = ipaddr.parse("192.168.1.1");
+addr.octets // => [192, 168, 1, 1]
+```
+
+`prefixLengthFromSubnetMask()` will return a CIDR prefix length for a valid IPv4 netmask or
+null if the netmask is not valid.
+
+```js
+ipaddr.IPv4.parse('255.255.255.240').prefixLengthFromSubnetMask() == 28
+ipaddr.IPv4.parse('255.192.164.0').prefixLengthFromSubnetMask()  == null
+```
+
+`subnetMaskFromPrefixLength()` will return an IPv4 netmask for a valid CIDR prefix length.
+
+```js
+ipaddr.IPv4.subnetMaskFromPrefixLength(24) == "255.255.255.0"
+ipaddr.IPv4.subnetMaskFromPrefixLength(29) == "255.255.255.248"
+```
+
+`broadcastAddressFromCIDR()` will return the broadcast address for a given IPv4 interface and netmask in CIDR notation.
+```js
+ipaddr.IPv4.broadcastAddressFromCIDR("172.0.0.1/24") == "172.0.0.255"
+```
+`networkAddressFromCIDR()` will return the network address for a given IPv4 interface and netmask in CIDR notation.
+```js
+ipaddr.IPv4.networkAddressFromCIDR("172.0.0.1/24") == "172.0.0.0"
+```
+
+#### Conversion
+
+IPv4 and IPv6 can be converted bidirectionally to and from network byte order (MSB) byte arrays.
+
+The `fromByteArray()` method will take an array and create an appropriate IPv4 or IPv6 object
+if the input satisfies the requirements. For IPv4 it has to be an array of four 8-bit values,
+while for IPv6 it has to be an array of sixteen 8-bit values.
+
+For example:
+```js
+var addr = ipaddr.fromByteArray([0x7f, 0, 0, 1]);
+addr.toString(); // => "127.0.0.1"
+```
+
+or
+
+```js
+var addr = ipaddr.fromByteArray([0x20, 1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1])
+addr.toString(); // => "2001:db8::1"
+```
+
+Both objects also offer a `toByteArray()` method, which returns an array in network byte order (MSB).
+
+For example:
+```js
+var addr = ipaddr.parse("127.0.0.1");
+addr.toByteArray(); // => [0x7f, 0, 0, 1]
+```
+
+or
+
+```js
+var addr = ipaddr.parse("2001:db8::1");
+addr.toByteArray(); // => [0x20, 1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]
+```

backend/apis/nodejs/node_modules/ipaddr.js/lib/ipaddr.js

@@ -0,0 +1,673 @@
+(function() {
+  var expandIPv6, ipaddr, ipv4Part, ipv4Regexes, ipv6Part, ipv6Regexes, matchCIDR, root, zoneIndex;
+
+  ipaddr = {};
+
+  root = this;
+
+  if ((typeof module !== "undefined" && module !== null) && module.exports) {
+    module.exports = ipaddr;
+  } else {
+    root['ipaddr'] = ipaddr;
+  }
+
+  matchCIDR = function(first, second, partSize, cidrBits) {
+    var part, shift;
+    if (first.length !== second.length) {
+      throw new Error("ipaddr: cannot match CIDR for objects with different lengths");
+    }
+    part = 0;
+    while (cidrBits > 0) {
+      shift = partSize - cidrBits;
+      if (shift < 0) {
+        shift = 0;
+      }
+      if (first[part] >> shift !== second[part] >> shift) {
+        return false;
+      }
+      cidrBits -= partSize;
+      part += 1;
+    }
+    return true;
+  };
+
+  ipaddr.subnetMatch = function(address, rangeList, defaultName) {
+    var k, len, rangeName, rangeSubnets, subnet;
+    if (defaultName == null) {
+      defaultName = 'unicast';
+    }
+    for (rangeName in rangeList) {
+      rangeSubnets = rangeList[rangeName];
+      if (rangeSubnets[0] && !(rangeSubnets[0] instanceof Array)) {
+        rangeSubnets = [rangeSubnets];
+      }
+      for (k = 0, len = rangeSubnets.length; k < len; k++) {
+        subnet = rangeSubnets[k];
+        if (address.kind() === subnet[0].kind()) {
+          if (address.match.apply(address, subnet)) {
+            return rangeName;
+          }
+        }
+      }
+    }
+    return defaultName;
+  };
+
+  ipaddr.IPv4 = (function() {
+    function IPv4(octets) {
+      var k, len, octet;
+      if (octets.length !== 4) {
+        throw new Error("ipaddr: ipv4 octet count should be 4");
+      }
+      for (k = 0, len = octets.length; k < len; k++) {
+        octet = octets[k];
+        if (!((0 <= octet && octet <= 255))) {
+          throw new Error("ipaddr: ipv4 octet should fit in 8 bits");
+        }
+      }
+      this.octets = octets;
+    }
+
+    IPv4.prototype.kind = function() {
+      return 'ipv4';
+    };
+
+    IPv4.prototype.toString = function() {
+      return this.octets.join(".");
+    };
+
+    IPv4.prototype.toNormalizedString = function() {
+      return this.toString();
+    };
+
+    IPv4.prototype.toByteArray = function() {
+      return this.octets.slice(0);
+    };
+
+    IPv4.prototype.match = function(other, cidrRange) {
+      var ref;
+      if (cidrRange === void 0) {
+        ref = other, other = ref[0], cidrRange = ref[1];
+      }
+      if (other.kind() !== 'ipv4') {
+        throw new Error("ipaddr: cannot match ipv4 address with non-ipv4 one");
+      }
+      return matchCIDR(this.octets, other.octets, 8, cidrRange);
+    };
+
+    IPv4.prototype.SpecialRanges = {
+      unspecified: [[new IPv4([0, 0, 0, 0]), 8]],
+      broadcast: [[new IPv4([255, 255, 255, 255]), 32]],
+      multicast: [[new IPv4([224, 0, 0, 0]), 4]],
+      linkLocal: [[new IPv4([169, 254, 0, 0]), 16]],
+      loopback: [[new IPv4([127, 0, 0, 0]), 8]],
+      carrierGradeNat: [[new IPv4([100, 64, 0, 0]), 10]],
+      "private": [[new IPv4([10, 0, 0, 0]), 8], [new IPv4([172, 16, 0, 0]), 12], [new IPv4([192, 168, 0, 0]), 16]],
+      reserved: [[new IPv4([192, 0, 0, 0]), 24], [new IPv4([192, 0, 2, 0]), 24], [new IPv4([192, 88, 99, 0]), 24], [new IPv4([198, 51, 100, 0]), 24], [new IPv4([203, 0, 113, 0]), 24], [new IPv4([240, 0, 0, 0]), 4]]
+    };
+
+    IPv4.prototype.range = function() {
+      return ipaddr.subnetMatch(this, this.SpecialRanges);
+    };
+
+    IPv4.prototype.toIPv4MappedAddress = function() {
+      return ipaddr.IPv6.parse("::ffff:" + (this.toString()));
+    };
+
+    IPv4.prototype.prefixLengthFromSubnetMask = function() {
+      var cidr, i, k, octet, stop, zeros, zerotable;
+      zerotable = {
+        0: 8,
+        128: 7,
+        192: 6,
+        224: 5,
+        240: 4,
+        248: 3,
+        252: 2,
+        254: 1,
+        255: 0
+      };
+      cidr = 0;
+      stop = false;
+      for (i = k = 3; k >= 0; i = k += -1) {
+        octet = this.octets[i];
+        if (octet in zerotable) {
+          zeros = zerotable[octet];
+          if (stop && zeros !== 0) {
+            return null;
+          }
+          if (zeros !== 8) {
+            stop = true;
+          }
+          cidr += zeros;
+        } else {
+          return null;
+        }
+      }
+      return 32 - cidr;
+    };
+
+    return IPv4;
+
+  })();
+
+  ipv4Part = "(0?\\d+|0x[a-f0-9]+)";
+
+  ipv4Regexes = {
+    fourOctet: new RegExp("^" + ipv4Part + "\\." + ipv4Part + "\\." + ipv4Part + "\\." + ipv4Part + "$", 'i'),
+    longValue: new RegExp("^" + ipv4Part + "$", 'i')
+  };
+
+  ipaddr.IPv4.parser = function(string) {
+    var match, parseIntAuto, part, shift, value;
+    parseIntAuto = function(string) {
+      if (string[0] === "0" && string[1] !== "x") {
+        return parseInt(string, 8);
+      } else {
+        return parseInt(string);
+      }
+    };
+    if (match = string.match(ipv4Regexes.fourOctet)) {
+      return (function() {
+        var k, len, ref, results;
+        ref = match.slice(1, 6);
+        results = [];
+        for (k = 0, len = ref.length; k < len; k++) {
+          part = ref[k];
+          results.push(parseIntAuto(part));
+        }
+        return results;
+      })();
+    } else if (match = string.match(ipv4Regexes.longValue)) {
+      value = parseIntAuto(match[1]);
+      if (value > 0xffffffff || value < 0) {
+        throw new Error("ipaddr: address outside defined range");
+      }
+      return ((function() {
+        var k, results;
+        results = [];
+        for (shift = k = 0; k <= 24; shift = k += 8) {
+          results.push((value >> shift) & 0xff);
+        }
+        return results;
+      })()).reverse();
+    } else {
+      return null;
+    }
+  };
+
+  ipaddr.IPv6 = (function() {
+    function IPv6(parts, zoneId) {
+      var i, k, l, len, part, ref;
+      if (parts.length === 16) {
+        this.parts = [];
+        for (i = k = 0; k <= 14; i = k += 2) {
+          this.parts.push((parts[i] << 8) | parts[i + 1]);
+        }
+      } else if (parts.length === 8) {
+        this.parts = parts;
+      } else {
+        throw new Error("ipaddr: ipv6 part count should be 8 or 16");
+      }
+      ref = this.parts;
+      for (l = 0, len = ref.length; l < len; l++) {
+        part = ref[l];
+        if (!((0 <= part && part <= 0xffff))) {
+          throw new Error("ipaddr: ipv6 part should fit in 16 bits");
+        }
+      }
+      if (zoneId) {
+        this.zoneId = zoneId;
+      }
+    }
+
+    IPv6.prototype.kind = function() {
+      return 'ipv6';
+    };
+
+    IPv6.prototype.toString = function() {
+      return this.toNormalizedString().replace(/((^|:)(0(:|$))+)/, '::');
+    };
+
+    IPv6.prototype.toRFC5952String = function() {
+      var bestMatchIndex, bestMatchLength, match, regex, string;
+      regex = /((^|:)(0(:|$)){2,})/g;
+      string = this.toNormalizedString();
+      bestMatchIndex = 0;
+      bestMatchLength = -1;
+      while ((match = regex.exec(string))) {
+        if (match[0].length > bestMatchLength) {
+          bestMatchIndex = match.index;
+          bestMatchLength = match[0].length;
+        }
+      }
+      if (bestMatchLength < 0) {
+        return string;
+      }
+      return string.substring(0, bestMatchIndex) + '::' + string.substring(bestMatchIndex + bestMatchLength);
+    };
+
+    IPv6.prototype.toByteArray = function() {
+      var bytes, k, len, part, ref;
+      bytes = [];
+      ref = this.parts;
+      for (k = 0, len = ref.length; k < len; k++) {
+        part = ref[k];
+        bytes.push(part >> 8);
+        bytes.push(part & 0xff);
+      }
+      return bytes;
+    };
+
+    IPv6.prototype.toNormalizedString = function() {
+      var addr, part, suffix;
+      addr = ((function() {
+        var k, len, ref, results;
+        ref = this.parts;
+        results = [];
+        for (k = 0, len = ref.length; k < len; k++) {
+          part = ref[k];
+          results.push(part.toString(16));
+        }
+        return results;
+      }).call(this)).join(":");
+      suffix = '';
+      if (this.zoneId) {
+        suffix = '%' + this.zoneId;
+      }
+      return addr + suffix;
+    };
+
+    IPv6.prototype.toFixedLengthString = function() {
+      var addr, part, suffix;
+      addr = ((function() {
+        var k, len, ref, results;
+        ref = this.parts;
+        results = [];
+        for (k = 0, len = ref.length; k < len; k++) {
+          part = ref[k];
+          results.push(part.toString(16).padStart(4, '0'));
+        }
+        return results;
+      }).call(this)).join(":");
+      suffix = '';
+      if (this.zoneId) {
+        suffix = '%' + this.zoneId;
+      }
+      return addr + suffix;
+    };
+
+    IPv6.prototype.match = function(other, cidrRange) {
+      var ref;
+      if (cidrRange === void 0) {
+        ref = other, other = ref[0], cidrRange = ref[1];
+      }
+      if (other.kind() !== 'ipv6') {
+        throw new Error("ipaddr: cannot match ipv6 address with non-ipv6 one");
+      }
+      return matchCIDR(this.parts, other.parts, 16, cidrRange);
+    };
+
+    IPv6.prototype.SpecialRanges = {
+      unspecified: [new IPv6([0, 0, 0, 0, 0, 0, 0, 0]), 128],
+      linkLocal: [new IPv6([0xfe80, 0, 0, 0, 0, 0, 0, 0]), 10],
+      multicast: [new IPv6([0xff00, 0, 0, 0, 0, 0, 0, 0]), 8],
+      loopback: [new IPv6([0, 0, 0, 0, 0, 0, 0, 1]), 128],
+      uniqueLocal: [new IPv6([0xfc00, 0, 0, 0, 0, 0, 0, 0]), 7],
+      ipv4Mapped: [new IPv6([0, 0, 0, 0, 0, 0xffff, 0, 0]), 96],
+      rfc6145: [new IPv6([0, 0, 0, 0, 0xffff, 0, 0, 0]), 96],
+      rfc6052: [new IPv6([0x64, 0xff9b, 0, 0, 0, 0, 0, 0]), 96],
+      '6to4': [new IPv6([0x2002, 0, 0, 0, 0, 0, 0, 0]), 16],
+      teredo: [new IPv6([0x2001, 0, 0, 0, 0, 0, 0, 0]), 32],
+      reserved: [[new IPv6([0x2001, 0xdb8, 0, 0, 0, 0, 0, 0]), 32]]
+    };
+
+    IPv6.prototype.range = function() {
+      return ipaddr.subnetMatch(this, this.SpecialRanges);
+    };
+
+    IPv6.prototype.isIPv4MappedAddress = function() {
+      return this.range() === 'ipv4Mapped';
+    };
+
+    IPv6.prototype.toIPv4Address = function() {
+      var high, low, ref;
+      if (!this.isIPv4MappedAddress()) {
+        throw new Error("ipaddr: trying to convert a generic ipv6 address to ipv4");
+      }
+      ref = this.parts.slice(-2), high = ref[0], low = ref[1];
+      return new ipaddr.IPv4([high >> 8, high & 0xff, low >> 8, low & 0xff]);
+    };
+
+    IPv6.prototype.prefixLengthFromSubnetMask = function() {
+      var cidr, i, k, part, stop, zeros, zerotable;
+      zerotable = {
+        0: 16,
+        32768: 15,
+        49152: 14,
+        57344: 13,
+        61440: 12,
+        63488: 11,
+        64512: 10,
+        65024: 9,
+        65280: 8,
+        65408: 7,
+        65472: 6,
+        65504: 5,
+        65520: 4,
+        65528: 3,
+        65532: 2,
+        65534: 1,
+        65535: 0
+      };
+      cidr = 0;
+      stop = false;
+      for (i = k = 7; k >= 0; i = k += -1) {
+        part = this.parts[i];
+        if (part in zerotable) {
+          zeros = zerotable[part];
+          if (stop && zeros !== 0) {
+            return null;
+          }
+          if (zeros !== 16) {
+            stop = true;
+          }
+          cidr += zeros;
+        } else {
+          return null;
+        }
+      }
+      return 128 - cidr;
+    };
+
+    return IPv6;
+
+  })();
+
+  ipv6Part = "(?:[0-9a-f]+::?)+";
+
+  zoneIndex = "%[0-9a-z]{1,}";
+
+  ipv6Regexes = {
+    zoneIndex: new RegExp(zoneIndex, 'i'),
+    "native": new RegExp("^(::)?(" + ipv6Part + ")?([0-9a-f]+)?(::)?(" + zoneIndex + ")?$", 'i'),
+    transitional: new RegExp(("^((?:" + ipv6Part + ")|(?:::)(?:" + ipv6Part + ")?)") + (ipv4Part + "\\." + ipv4Part + "\\." + ipv4Part + "\\." + ipv4Part) + ("(" + zoneIndex + ")?$"), 'i')
+  };
+
+  expandIPv6 = function(string, parts) {
+    var colonCount, lastColon, part, replacement, replacementCount, zoneId;
+    if (string.indexOf('::') !== string.lastIndexOf('::')) {
+      return null;
+    }
+    zoneId = (string.match(ipv6Regexes['zoneIndex']) || [])[0];
+    if (zoneId) {
+      zoneId = zoneId.substring(1);
+      string = string.replace(/%.+$/, '');
+    }
+    colonCount = 0;
+    lastColon = -1;
+    while ((lastColon = string.indexOf(':', lastColon + 1)) >= 0) {
+      colonCount++;
+    }
+    if (string.substr(0, 2) === '::') {
+      colonCount--;
+    }
+    if (string.substr(-2, 2) === '::') {
+      colonCount--;
+    }
+    if (colonCount > parts) {
+      return null;
+    }
+    replacementCount = parts - colonCount;
+    replacement = ':';
+    while (replacementCount--) {
+      replacement += '0:';
+    }
+    string = string.replace('::', replacement);
+    if (string[0] === ':') {
+      string = string.slice(1);
+    }
+    if (string[string.length - 1] === ':') {
+      string = string.slice(0, -1);
+    }
+    parts = (function() {
+      var k, len, ref, results;
+      ref = string.split(":");
+      results = [];
+      for (k = 0, len = ref.length; k < len; k++) {
+        part = ref[k];
+        results.push(parseInt(part, 16));
+      }
+      return results;
+    })();
+    return {
+      parts: parts,
+      zoneId: zoneId
+    };
+  };
+
+  ipaddr.IPv6.parser = function(string) {
+    var addr, k, len, match, octet, octets, zoneId;
+    if (ipv6Regexes['native'].test(string)) {
+      return expandIPv6(string, 8);
+    } else if (match = string.match(ipv6Regexes['transitional'])) {
+      zoneId = match[6] || '';
+      addr = expandIPv6(match[1].slice(0, -1) + zoneId, 6);
+      if (addr.parts) {
+        octets = [parseInt(match[2]), parseInt(match[3]), parseInt(match[4]), parseInt(match[5])];
+        for (k = 0, len = octets.length; k < len; k++) {
+          octet = octets[k];
+          if (!((0 <= octet && octet <= 255))) {
+            return null;
+          }
+        }
+        addr.parts.push(octets[0] << 8 | octets[1]);
+        addr.parts.push(octets[2] << 8 | octets[3]);
+        return {
+          parts: addr.parts,
+          zoneId: addr.zoneId
+        };
+      }
+    }
+    return null;
+  };
+
+  ipaddr.IPv4.isIPv4 = ipaddr.IPv6.isIPv6 = function(string) {
+    return this.parser(string) !== null;
+  };
+
+  ipaddr.IPv4.isValid = function(string) {
+    var e;
+    try {
+      new this(this.parser(string));
+      return true;
+    } catch (error1) {
+      e = error1;
+      return false;
+    }
+  };
+
+  ipaddr.IPv4.isValidFourPartDecimal = function(string) {
+    if (ipaddr.IPv4.isValid(string) && string.match(/^(0|[1-9]\d*)(\.(0|[1-9]\d*)){3}$/)) {
+      return true;
+    } else {
+      return false;
+    }
+  };
+
+  ipaddr.IPv6.isValid = function(string) {
+    var addr, e;
+    if (typeof string === "string" && string.indexOf(":") === -1) {
+      return false;
+    }
+    try {
+      addr = this.parser(string);
+      new this(addr.parts, addr.zoneId);
+      return true;
+    } catch (error1) {
+      e = error1;
+      return false;
+    }
+  };
+
+  ipaddr.IPv4.parse = function(string) {
+    var parts;
+    parts = this.parser(string);
+    if (parts === null) {
+      throw new Error("ipaddr: string is not formatted like ip address");
+    }
+    return new this(parts);
+  };
+
+  ipaddr.IPv6.parse = function(string) {
+    var addr;
+    addr = this.parser(string);
+    if (addr.parts === null) {
+      throw new Error("ipaddr: string is not formatted like ip address");
+    }
+    return new this(addr.parts, addr.zoneId);
+  };
+
+  ipaddr.IPv4.parseCIDR = function(string) {
+    var maskLength, match, parsed;
+    if (match = string.match(/^(.+)\/(\d+)$/)) {
+      maskLength = parseInt(match[2]);
+      if (maskLength >= 0 && maskLength <= 32) {
+        parsed = [this.parse(match[1]), maskLength];
+        Object.defineProperty(parsed, 'toString', {
+          value: function() {
+            return this.join('/');
+          }
+        });
+        return parsed;
+      }
+    }
+    throw new Error("ipaddr: string is not formatted like an IPv4 CIDR range");
+  };
+
+  ipaddr.IPv4.subnetMaskFromPrefixLength = function(prefix) {
+    var filledOctetCount, j, octets;
+    prefix = parseInt(prefix);
+    if (prefix < 0 || prefix > 32) {
+      throw new Error('ipaddr: invalid IPv4 prefix length');
+    }
+    octets = [0, 0, 0, 0];
+    j = 0;
+    filledOctetCount = Math.floor(prefix / 8);
+    while (j < filledOctetCount) {
+      octets[j] = 255;
+      j++;
+    }
+    if (filledOctetCount < 4) {
+      octets[filledOctetCount] = Math.pow(2, prefix % 8) - 1 << 8 - (prefix % 8);
+    }
+    return new this(octets);
+  };
+
+  ipaddr.IPv4.broadcastAddressFromCIDR = function(string) {
+    var cidr, error, i, ipInterfaceOctets, octets, subnetMaskOctets;
+    try {
+      cidr = this.parseCIDR(string);
+      ipInterfaceOctets = cidr[0].toByteArray();
+      subnetMaskOctets = this.subnetMaskFromPrefixLength(cidr[1]).toByteArray();
+      octets = [];
+      i = 0;
+      while (i < 4) {
+        octets.push(parseInt(ipInterfaceOctets[i], 10) | parseInt(subnetMaskOctets[i], 10) ^ 255);
+        i++;
+      }
+      return new this(octets);
+    } catch (error1) {
+      error = error1;
+      throw new Error('ipaddr: the address does not have IPv4 CIDR format');
+    }
+  };
+
+  ipaddr.IPv4.networkAddressFromCIDR = function(string) {
+    var cidr, error, i, ipInterfaceOctets, octets, subnetMaskOctets;
+    try {
+      cidr = this.parseCIDR(string);
+      ipInterfaceOctets = cidr[0].toByteArray();
+      subnetMaskOctets = this.subnetMaskFromPrefixLength(cidr[1]).toByteArray();
+      octets = [];
+      i = 0;
+      while (i < 4) {
+        octets.push(parseInt(ipInterfaceOctets[i], 10) & parseInt(subnetMaskOctets[i], 10));
+        i++;
+      }
+      return new this(octets);
+    } catch (error1) {
+      error = error1;
+      throw new Error('ipaddr: the address does not have IPv4 CIDR format');
+    }
+  };
+
+  ipaddr.IPv6.parseCIDR = function(string) {
+    var maskLength, match, parsed;
+    if (match = string.match(/^(.+)\/(\d+)$/)) {
+      maskLength = parseInt(match[2]);
+      if (maskLength >= 0 && maskLength <= 128) {
+        parsed = [this.parse(match[1]), maskLength];
+        Object.defineProperty(parsed, 'toString', {
+          value: function() {
+            return this.join('/');
+          }
+        });
+        return parsed;
+      }
+    }
+    throw new Error("ipaddr: string is not formatted like an IPv6 CIDR range");
+  };
+
+  ipaddr.isValid = function(string) {
+    return ipaddr.IPv6.isValid(string) || ipaddr.IPv4.isValid(string);
+  };
+
+  ipaddr.parse = function(string) {
+    if (ipaddr.IPv6.isValid(string)) {
+      return ipaddr.IPv6.parse(string);
+    } else if (ipaddr.IPv4.isValid(string)) {
+      return ipaddr.IPv4.parse(string);
+    } else {
+      throw new Error("ipaddr: the address has neither IPv6 nor IPv4 format");
+    }
+  };
+
+  ipaddr.parseCIDR = function(string) {
+    var e;
+    try {
+      return ipaddr.IPv6.parseCIDR(string);
+    } catch (error1) {
+      e = error1;
+      try {
+        return ipaddr.IPv4.parseCIDR(string);
+      } catch (error1) {
+        e = error1;
+        throw new Error("ipaddr: the address has neither IPv6 nor IPv4 CIDR format");
+      }
+    }
+  };
+
+  ipaddr.fromByteArray = function(bytes) {
+    var length;
+    length = bytes.length;
+    if (length === 4) {
+      return new ipaddr.IPv4(bytes);
+    } else if (length === 16) {
+      return new ipaddr.IPv6(bytes);
+    } else {
+      throw new Error("ipaddr: the binary input is neither an IPv6 nor IPv4 address");
+    }
+  };
+
+  ipaddr.process = function(string) {
+    var addr;
+    addr = this.parse(string);
+    if (addr.kind() === 'ipv6' && addr.isIPv4MappedAddress()) {
+      return addr.toIPv4Address();
+    } else {
+      return addr;
+    }
+  };
+
+}).call(this);

backend/apis/nodejs/node_modules/ipaddr.js/lib/ipaddr.js.d.ts

@@ -0,0 +1,68 @@
+declare module "ipaddr.js" {
+    type IPv4Range = 'unicast' | 'unspecified' | 'broadcast' | 'multicast' | 'linkLocal' | 'loopback' | 'carrierGradeNat' | 'private' | 'reserved';
+    type IPv6Range = 'unicast' | 'unspecified' | 'linkLocal' | 'multicast' | 'loopback' | 'uniqueLocal' | 'ipv4Mapped' | 'rfc6145' | 'rfc6052' | '6to4' | 'teredo' | 'reserved';
+
+    interface RangeList<T> {
+        [name: string]: [T, number] | [T, number][];
+    }
+
+    // Common methods/properties for IPv4 and IPv6 classes.
+    class IP {
+        prefixLengthFromSubnetMask(): number | null;
+        toByteArray(): number[];
+        toNormalizedString(): string;
+        toString(): string;
+    }
+
+    namespace Address {
+        export function isValid(addr: string): boolean;
+        export function fromByteArray(bytes: number[]): IPv4 | IPv6;
+        export function parse(addr: string): IPv4 | IPv6;
+        export function parseCIDR(mask: string): [IPv4 | IPv6, number];
+        export function process(addr: string): IPv4 | IPv6;
+        export function subnetMatch(addr: IPv4, rangeList: RangeList<IPv4>, defaultName?: string): string;
+        export function subnetMatch(addr: IPv6, rangeList: RangeList<IPv6>, defaultName?: string): string;
+
+        export class IPv4 extends IP {
+            static broadcastAddressFromCIDR(addr: string): IPv4;
+            static isIPv4(addr: string): boolean;
+            static isValidFourPartDecimal(addr: string): boolean;
+            static isValid(addr: string): boolean;
+            static networkAddressFromCIDR(addr: string): IPv4;
+            static parse(addr: string): IPv4;
+            static parseCIDR(addr: string): [IPv4, number];
+            static subnetMaskFromPrefixLength(prefix: number): IPv4;
+            constructor(octets: number[]);
+            octets: number[]
+
+            kind(): 'ipv4';
+            match(addr: IPv4, bits: number): boolean;
+            match(mask: [IPv4, number]): boolean;
+            range(): IPv4Range;
+            subnetMatch(rangeList: RangeList<IPv4>, defaultName?: string): string;
+            toIPv4MappedAddress(): IPv6;
+        }
+
+        export class IPv6 extends IP {
+            static broadcastAddressFromCIDR(addr: string): IPv6;
+            static isIPv6(addr: string): boolean;
+            static isValid(addr: string): boolean;
+            static parse(addr: string): IPv6;
+            static parseCIDR(addr: string): [IPv6, number];
+            static subnetMaskFromPrefixLength(prefix: number): IPv6;
+            constructor(parts: number[]);
+            parts: number[]
+            zoneId?: string
+
+            isIPv4MappedAddress(): boolean;
+            kind(): 'ipv6';
+            match(addr: IPv6, bits: number): boolean;
+            match(mask: [IPv6, number]): boolean;
+            range(): IPv6Range;
+            subnetMatch(rangeList: RangeList<IPv6>, defaultName?: string): string;
+            toIPv4Address(): IPv4;
+        }
+    }
+
+    export = Address;
+}

backend/apis/nodejs/node_modules/ipaddr.js/package.json

@@ -0,0 +1,35 @@
+{
+  "name": "ipaddr.js",
+  "description": "A library for manipulating IPv4 and IPv6 addresses in JavaScript.",
+  "version": "1.9.1",
+  "author": "whitequark <whitequark@whitequark.org>",
+  "directories": {
+    "lib": "./lib"
+  },
+  "dependencies": {},
+  "devDependencies": {
+    "coffee-script": "~1.12.6",
+    "nodeunit": "^0.11.3",
+    "uglify-js": "~3.0.19"
+  },
+  "scripts": {
+    "test": "cake build test"
+  },
+  "files": [
+    "lib/",
+    "LICENSE",
+    "ipaddr.min.js"
+  ],
+  "keywords": [
+    "ip",
+    "ipv4",
+    "ipv6"
+  ],
+  "repository": "git://github.com/whitequark/ipaddr.js",
+  "main": "./lib/ipaddr.js",
+  "engines": {
+    "node": ">= 0.10"
+  },
+  "license": "MIT",
+  "types": "./lib/ipaddr.js.d.ts"
+}