diff options
Diffstat (limited to 'signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/util/Base64.as')
| -rwxr-xr-x | signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/util/Base64.as | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/util/Base64.as b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/util/Base64.as new file mode 100755 index 0000000..bcb349c --- /dev/null +++ b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/util/Base64.as @@ -0,0 +1,189 @@ +/* Base64 library for ActionScript 3.0.
+ * Based on: Ma Bingyao code.
+ * Optimized by: Jean-Philippe Auclair / jpauclair.wordpress.com
+ * Copyright (C) 2007 Ma Bingyao <andot@ujn.edu.cn>
+ * LastModified: Oct 26, 2009
+ * This library is free. You can redistribute it and/or modify it.
+ */
+package com.hurlant.util{
+ import flash.utils.ByteArray;
+
+ public class Base64
+ {
+ private static const _encodeChars : Vector.<int> = InitEncoreChar();
+ private static const _decodeChars : Vector.<int> = InitDecodeChar();
+
+ public static function encodeByteArray(data : ByteArray) : String
+ {
+ var out : ByteArray = new ByteArray();
+ //Presetting the length keep the memory smaller and optimize speed since there is no "grow" needed
+ out.length = (2 + data.length - ((data.length + 2) % 3)) * 4 / 3; //Preset length //1.6 to 1.5 ms
+ var i : int = 0;
+ var r : int = data.length % 3;
+ var len : int = data.length - r;
+ var c : int; //read (3) character AND write (4) characters
+
+ while (i < len)
+ {
+ //Read 3 Characters (8bit * 3 = 24 bits)
+ c = data[i++] << 16 | data[i++] << 8 | data[i++];
+
+ //Cannot optimize this to read int because of the positioning overhead. (as3 bytearray seek is slow)
+ //Convert to 4 Characters (6 bit * 4 = 24 bits)
+ c = (_encodeChars[c >>> 18] << 24) | (_encodeChars[c >>> 12 & 0x3f] << 16) | (_encodeChars[c >>> 6 & 0x3f] << 8) | _encodeChars[c & 0x3f];
+
+ //Optimization: On older and slower computer, do one write Int instead of 4 write byte: 1.5 to 0.71 ms
+ out.writeInt(c);
+ /*
+ out.writeByte(_encodeChars[c >> 18] );
+ out.writeByte(_encodeChars[c >> 12 & 0x3f]);
+ out.writeByte(_encodeChars[c >> 6 & 0x3f]);
+ out.writeByte(_encodeChars[c & 0x3f]);
+ */
+ }
+
+ if (r == 1) //Need two "=" padding
+ {
+ //Read one char, write two chars, write padding
+ c = data[i];
+ c = (_encodeChars[c >>> 2] << 24) | (_encodeChars[(c & 0x03) << 4] << 16) | 61 << 8 | 61;
+ out.writeInt(c);
+ }
+ else if (r == 2) //Need one "=" padding
+ {
+ c = data[i++] << 8 | data[i];
+ c = (_encodeChars[c >>> 10] << 24) | (_encodeChars[c >>> 4 & 0x3f] << 16) | (_encodeChars[(c & 0x0f) << 2] << 8) | 61;
+ out.writeInt(c);
+ }
+
+ out.position = 0;
+ return out.readUTFBytes(out.length);
+ }
+
+
+ public static function decodeToByteArray(str : String) : ByteArray
+ {
+ var c1 : int;
+ var c2 : int;
+ var c3 : int;
+ var c4 : int;
+ var i : int;
+ var len : int;
+ var out : ByteArray;
+ len = str.length;
+ i = 0;
+ out = new ByteArray();
+ var byteString : ByteArray = new ByteArray();
+ byteString.writeUTFBytes(str);
+ while (i < len)
+ {
+ //c1
+ do
+ {
+ c1 = _decodeChars[byteString[i++]];
+ } while (i < len && c1 == -1);
+ if (c1 == -1) break;
+
+ //c2
+ do
+ {
+ c2 = _decodeChars[byteString[i++]];
+ } while (i < len && c2 == -1);
+ if (c2 == -1) break;
+
+ out.writeByte((c1 << 2) | ((c2 & 0x30) >> 4));
+
+ //c3
+ do
+ {
+ c3 = byteString[i++];
+ if (c3 == 61) return out;
+
+ c3 = _decodeChars[c3];
+ } while (i < len && c3 == -1);
+ if (c3 == -1) break;
+
+ out.writeByte(((c2 & 0x0f) << 4) | ((c3 & 0x3c) >> 2));
+
+ //c4
+ do {
+ c4 = byteString[i++];
+ if (c4 == 61) return out;
+
+ c4 = _decodeChars[c4];
+ } while (i < len && c4 == -1);
+ if (c4 == -1) break;
+
+ out.writeByte(((c3 & 0x03) << 6) | c4);
+
+ }
+
+ out.position = 0;
+
+ return out;
+ }
+
+ public static function encode(data : String) : String {
+ // Convert string to ByteArray
+ var bytes : ByteArray = new ByteArray();
+ bytes.writeUTFBytes(data);
+
+ // Return encoded ByteArray
+ return encodeByteArray(bytes);
+ }
+
+ public static function decode(data : String) : String {
+ // Decode data to ByteArray
+ var bytes : ByteArray = decodeToByteArray(data);
+
+ // Convert to string and return
+ return bytes.readUTFBytes(bytes.length);
+ }
+
+ public static function InitEncoreChar() : Vector.<int>
+ {
+ var encodeChars : Vector.<int> = new Vector.<int>();
+ // We could push the number directly, but i think it's nice to see the characters (with no overhead on encode/decode)
+ var chars : String = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+ for (var i : int = 0; i < 64; i++)
+ {
+ encodeChars.push(chars.charCodeAt(i));
+ }
+ /*
+ encodeChars.push(
+ 65, 66, 67, 68, 69, 70, 71, 72,
+ 73, 74, 75, 76, 77, 78, 79, 80,
+ 81, 82, 83, 84, 85, 86, 87, 88,
+ 89, 90, 97, 98, 99, 100, 101, 102,
+ 103, 104, 105, 106, 107, 108, 109, 110,
+ 111, 112, 113, 114, 115, 116, 117, 118,
+ 119, 120, 121, 122, 48, 49, 50, 51,
+ 52, 53, 54, 55, 56, 57, 43, 47);
+ */
+ return encodeChars;
+ }
+
+ public static function InitDecodeChar() : Vector.<int>
+ {
+ var decodeChars : Vector.<int> = new Vector.<int>();
+
+ decodeChars.push(-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
+ 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
+ -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
+ -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1
+ - 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1);
+ return decodeChars;
+ }
+ }
+}
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