From b60df56157ee1fd0bd4938799bac05a62fda91a1 Mon Sep 17 00:00:00 2001
From: lookshe <github@lookshe.org>
Date: Sat, 14 Mar 2015 20:45:20 +0100
Subject: initial commit from working version

---
 .../learnboost-engine.io-client/lib/parser.js      | 163 +++++++++++++++++++++
 1 file changed, 163 insertions(+)
 create mode 100644 signaling-server/node_modules/socket.io/node_modules/socket.io-client/components/learnboost-engine.io-client/lib/parser.js

(limited to 'signaling-server/node_modules/socket.io/node_modules/socket.io-client/components/learnboost-engine.io-client/lib/parser.js')

diff --git a/signaling-server/node_modules/socket.io/node_modules/socket.io-client/components/learnboost-engine.io-client/lib/parser.js b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/components/learnboost-engine.io-client/lib/parser.js
new file mode 100644
index 0000000..2c2928e
--- /dev/null
+++ b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/components/learnboost-engine.io-client/lib/parser.js
@@ -0,0 +1,163 @@
+/**
+ * Module dependencies.
+ */
+
+var util = require('./util')
+
+/**
+ * Packet types.
+ */
+
+var packets = exports.packets = {
+    open:     0    // non-ws
+  , close:    1    // non-ws
+  , ping:     2
+  , pong:     3
+  , message:  4
+  , upgrade:  5
+  , noop:     6
+};
+
+var packetslist = util.keys(packets);
+
+/**
+ * Premade error packet.
+ */
+
+var err = { type: 'error', data: 'parser error' }
+
+/**
+ * Encodes a packet.
+ *
+ *     <packet type id> [ `:` <data> ]
+ *
+ * Example:
+ *
+ *     5:hello world
+ *     3
+ *     4
+ *
+ * @api private
+ */
+
+exports.encodePacket = function (packet) {
+  var encoded = packets[packet.type]
+
+  // data fragment is optional
+  if (undefined !== packet.data) {
+    encoded += String(packet.data);
+  }
+
+  return '' + encoded;
+};
+
+/**
+ * Decodes a packet.
+ *
+ * @return {Object} with `type` and `data` (if any)
+ * @api private
+ */
+
+exports.decodePacket = function (data) {
+  var type = data.charAt(0);
+
+  if (Number(type) != type || !packetslist[type]) {
+    return err;
+  }
+
+  if (data.length > 1) {
+    return { type: packetslist[type], data: data.substring(1) };
+  } else {
+    return { type: packetslist[type] };
+  }
+};
+
+/**
+ * Encodes multiple messages (payload).
+ * 
+ *     <length>:data
+ *
+ * Example:
+ *
+ *     11:hello world2:hi
+ *
+ * @param {Array} packets
+ * @api private
+ */
+
+exports.encodePayload = function (packets) {
+  if (!packets.length) {
+    return '0:';
+  }
+
+  var encoded = ''
+    , message
+
+  for (var i = 0, l = packets.length; i < l; i++) {
+    message = exports.encodePacket(packets[i]);
+    encoded += message.length + ':' + message;
+  }
+
+  return encoded;
+};
+
+/*
+ * Decodes data when a payload is maybe expected.
+ *
+ * @param {String} data
+ * @return {Array} packets
+ * @api public
+ */
+
+exports.decodePayload = function (data) {
+  if (data == '') {
+    // parser error - ignoring payload
+    return [err];
+  }
+
+  var packets = []
+    , length = ''
+    , n, msg, packet
+
+  for (var i = 0, l = data.length; i < l; i++) {
+    var chr = data.charAt(i)
+
+    if (':' != chr) {
+      length += chr;
+    } else {
+      if ('' == length || (length != (n = Number(length)))) {
+        // parser error - ignoring payload
+        return [err];
+      }
+
+      msg = data.substr(i + 1, n);
+
+      if (length != msg.length) {
+        // parser error - ignoring payload
+        return [err];
+      }
+
+      if (msg.length) {
+        packet = exports.decodePacket(msg);
+
+        if (err.type == packet.type && err.data == packet.data) {
+          // parser error in individual packet - ignoring payload
+          return [err];
+        }
+
+        packets.push(packet);
+      }
+
+      // advance cursor
+      i += n;
+      length = ''
+    }
+  }
+
+  if (length != '') {
+    // parser error - ignoring payload
+    return [err];
+  }
+
+  return packets;
+};
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