1 files changed, 48 insertions, 0 deletions
diff --git a/devtools/client/netmonitor/src/components/messages/parsers/socket-io/binary.js b/devtools/client/netmonitor/src/components/messages/parsers/socket-io/binary.js
new file mode 100644
index 0000000000..340791199f
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+++ b/devtools/client/netmonitor/src/components/messages/parsers/socket-io/binary.js
@@ -0,0 +1,48 @@
+/*
+ * A socket.io encoder and decoder written in JavaScript complying with version 4
+ * of socket.io-protocol. Used by socket.io and socket.io-client.
+ *
+ * Copyright (c) 2014 Guillermo Rauch <guillermo@learnboost.com>
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of the library source tree.
+ *
+ * https://github.com/socketio/socket.io-parser
+ */
+
+"use strict";
+
+/**
+ * Reconstructs a binary packet from its placeholder packet and buffers
+ *
+ * @param {Object} packet - event packet with placeholders
+ * @param {Array} buffers - binary buffers to put in placeholder positions
+ * @return {Object} reconstructed packet
+ * @api public
+ */
+
+exports.reconstructPacket = function (packet, buffers) {
+  packet.data = _reconstructPacket(packet.data, buffers);
+  packet.attachments = undefined; // no longer useful
+  return packet;
+};
+
+function _reconstructPacket(data, buffers) {
+  if (!data) {
+    return data;
+  }
+
+  if (data && data._placeholder) {
+    return buffers[data.num]; // appropriate buffer (should be natural order anyway)
+  } else if (Array.isArray(data)) {
+    for (let i = 0; i < data.length; i++) {
+      data[i] = _reconstructPacket(data[i], buffers);
+    }
+  } else if (typeof data === "object") {
+    for (const key in data) {
+      data[key] = _reconstructPacket(data[key], buffers);
+    }
+  }
+
+  return data;
+}