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'use strict';
module.exports = function unserialize(data) {
// discuss at: http://locutus.io/php/unserialize/
// original by: Arpad Ray (mailto:arpad@php.net)
// improved by: Pedro Tainha (http://www.pedrotainha.com)
// improved by: Kevin van Zonneveld (http://kvz.io)
// improved by: Kevin van Zonneveld (http://kvz.io)
// improved by: Chris
// improved by: James
// improved by: Le Torbi
// improved by: Eli Skeggs
// bugfixed by: dptr1988
// bugfixed by: Kevin van Zonneveld (http://kvz.io)
// bugfixed by: Brett Zamir (http://brett-zamir.me)
// bugfixed by: philippsimon (https://github.com/philippsimon/)
// revised by: d3x
// input by: Brett Zamir (http://brett-zamir.me)
// input by: Martin (http://www.erlenwiese.de/)
// input by: kilops
// input by: Jaroslaw Czarniak
// input by: lovasoa (https://github.com/lovasoa/)
// note 1: We feel the main purpose of this function should be
// note 1: to ease the transport of data between php & js
// note 1: Aiming for PHP-compatibility, we have to translate objects to arrays
// example 1: unserialize('a:3:{i:0;s:5:"Kevin";i:1;s:3:"van";i:2;s:9:"Zonneveld";}')
// returns 1: ['Kevin', 'van', 'Zonneveld']
// example 2: unserialize('a:2:{s:9:"firstName";s:5:"Kevin";s:7:"midName";s:3:"van";}')
// returns 2: {firstName: 'Kevin', midName: 'van'}
// example 3: unserialize('a:3:{s:2:"ü";s:2:"ü";s:3:"四";s:3:"四";s:4:"𠜎";s:4:"𠜎";}')
// returns 3: {'ü': 'ü', '四': '四', '𠜎': '𠜎'}
var $global = typeof window !== 'undefined' ? window : global;
var utf8Overhead = function utf8Overhead(str) {
var s = str.length;
for (var i = str.length - 1; i >= 0; i--) {
var code = str.charCodeAt(i);
if (code > 0x7f && code <= 0x7ff) {
s++;
} else if (code > 0x7ff && code <= 0xffff) {
s += 2;
}
// trail surrogate
if (code >= 0xDC00 && code <= 0xDFFF) {
i--;
}
}
return s - 1;
};
var error = function error(type, msg, filename, line) {
throw new $global[type](msg, filename, line);
};
var readUntil = function readUntil(data, offset, stopchr) {
var i = 2;
var buf = [];
var chr = data.slice(offset, offset + 1);
while (chr !== stopchr) {
if (i + offset > data.length) {
error('Error', 'Invalid');
}
buf.push(chr);
chr = data.slice(offset + (i - 1), offset + i);
i += 1;
}
return [buf.length, buf.join('')];
};
var readChrs = function readChrs(data, offset, length) {
var i, chr, buf;
buf = [];
for (i = 0; i < length; i++) {
chr = data.slice(offset + (i - 1), offset + i);
buf.push(chr);
length -= utf8Overhead(chr);
}
return [buf.length, buf.join('')];
};
function _unserialize(data, offset) {
var dtype;
var dataoffset;
var keyandchrs;
var keys;
var contig;
var length;
var array;
var readdata;
var readData;
var ccount;
var stringlength;
var i;
var key;
var kprops;
var kchrs;
var vprops;
var vchrs;
var value;
var chrs = 0;
var typeconvert = function typeconvert(x) {
return x;
};
if (!offset) {
offset = 0;
}
dtype = data.slice(offset, offset + 1).toLowerCase();
dataoffset = offset + 2;
switch (dtype) {
case 'i':
typeconvert = function typeconvert(x) {
return parseInt(x, 10);
};
readData = readUntil(data, dataoffset, ';');
chrs = readData[0];
readdata = readData[1];
dataoffset += chrs + 1;
break;
case 'b':
typeconvert = function typeconvert(x) {
return parseInt(x, 10) !== 0;
};
readData = readUntil(data, dataoffset, ';');
chrs = readData[0];
readdata = readData[1];
dataoffset += chrs + 1;
break;
case 'd':
typeconvert = function typeconvert(x) {
return parseFloat(x);
};
readData = readUntil(data, dataoffset, ';');
chrs = readData[0];
readdata = readData[1];
dataoffset += chrs + 1;
break;
case 'n':
readdata = null;
break;
case 's':
ccount = readUntil(data, dataoffset, ':');
chrs = ccount[0];
stringlength = ccount[1];
dataoffset += chrs + 2;
readData = readChrs(data, dataoffset + 1, parseInt(stringlength, 10));
chrs = readData[0];
readdata = readData[1];
dataoffset += chrs + 2;
if (chrs !== parseInt(stringlength, 10) && chrs !== readdata.length) {
error('SyntaxError', 'String length mismatch');
}
break;
case 'a':
readdata = {};
keyandchrs = readUntil(data, dataoffset, ':');
chrs = keyandchrs[0];
keys = keyandchrs[1];
dataoffset += chrs + 2;
length = parseInt(keys, 10);
contig = true;
for (i = 0; i < length; i++) {
kprops = _unserialize(data, dataoffset);
kchrs = kprops[1];
key = kprops[2];
dataoffset += kchrs;
vprops = _unserialize(data, dataoffset);
vchrs = vprops[1];
value = vprops[2];
dataoffset += vchrs;
if (key !== i) {
contig = false;
}
readdata[key] = value;
}
if (contig) {
array = new Array(length);
for (i = 0; i < length; i++) {
array[i] = readdata[i];
}
readdata = array;
}
dataoffset += 1;
break;
default:
error('SyntaxError', 'Unknown / Unhandled data type(s): ' + dtype);
break;
}
return [dtype, dataoffset - offset, typeconvert(readdata)];
}
return _unserialize(data + '', 0)[2];
};
//# sourceMappingURL=unserialize.js.map
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