// {{{ HTML_AJAX_Serialize_PHP
/**
* PHP serializer
*
* This class can be used to serialize and unserialize data in a
* format compatible with PHP's native serialization functions.
*
* @version 0.0.3
* @copyright 2005 Arpad Ray
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
*
* See Main.js for Author/license details
*/
function HTML_AJAX_Serialize_PHP() {}
HTML_AJAX_Serialize_PHP.prototype = {
error: false,
message: "",
cont: "",
defaultEncoding: 'UTF-8',
contentType: 'application/php-serialized; charset: UTF-8',
// {{{ serialize
/**
* Serializes a variable
*
* @param mixed inp the variable to serialize
* @return string a string representation of the input,
* which can be reconstructed by unserialize()
* @author Arpad Ray
* @author David Coallier
*/
serialize: function(inp) {
var type = HTML_AJAX_Util.getType(inp);
var val;
switch (type) {
case "undefined":
val = "N";
break;
case "boolean":
val = "b:" + (inp ? "1" : "0");
break;
case "number":
val = (Math.round(inp) == inp ? "i" : "d") + ":" + inp;
break;
case "string":
val = "s:" + inp.length + ":\"" + inp + "\"";
break;
case "array":
val = "a";
case "object":
if (type == "object") {
var objname = inp.constructor.toString().match(/(\w+)\(\)/);
if (objname == undefined) {
return;
}
objname[1] = this.serialize(objname[1]);
val = "O" + objname[1].substring(1, objname[1].length - 1);
}
var count = 0;
var vals = "";
var okey;
for (key in inp) {
okey = (key.match(/^[0-9]+$/) ? parseInt(key) : key);
vals += this.serialize(okey) +
this.serialize(inp[key]);
count++;
}
val += ":" + count + ":{" + vals + "}";
break;
}
if (type != "object" && type != "array") val += ";";
return val;
},
// }}}
// {{{ unserialize
/**
* Reconstructs a serialized variable
*
* @param string inp the string to reconstruct
* @return mixed the variable represented by the input string, or void on failure
*/
unserialize: function(inp) {
this.error = 0;
if (inp == "" || inp.length < 2) {
this.raiseError("input is too short");
return;
}
var val, kret, vret, cval;
var type = inp.charAt(0);
var cont = inp.substring(2);
var size = 0, divpos = 0, endcont = 0, rest = "", next = "";
switch (type) {
case "N": // null
if (inp.charAt(1) != ";") {
this.raiseError("missing ; for null", cont);
}
// leave val undefined
rest = cont;
break;
case "b": // boolean
if (!/[01];/.test(cont.substring(0,2))) {
this.raiseError("value not 0 or 1, or missing ; for boolean", cont);
}
val = (cont.charAt(0) == "1");
rest = cont.substring(1);
break;
case "s": // string
val = "";
divpos = cont.indexOf(":");
if (divpos == -1) {
this.raiseError("missing : for string", cont);
break;
}
size = parseInt(cont.substring(0, divpos));
if (size == 0) {
if (cont.length - divpos < 4) {
this.raiseError("string is too short", cont);
break;
}
rest = cont.substring(divpos + 4);
break;
}
if ((cont.length - divpos - size) < 4) {
this.raiseError("string is too short", cont);
break;
}
if (cont.substring(divpos + 2 + size, divpos + 4 + size) != "\";") {
this.raiseError("string is too long, or missing \";", cont);
}
val = cont.substring(divpos + 2, divpos + 2 + size);
rest = cont.substring(divpos + 4 + size);
break;
case "i": // integer
case "d": // float
var dotfound = 0;
for (var i = 0; i < cont.length; i++) {
cval = cont.charAt(i);
if (isNaN(parseInt(cval)) && !(type == "d" && cval == "." && !dotfound++)) {
endcont = i;
break;
}
}
if (!endcont || cont.charAt(endcont) != ";") {
this.raiseError("missing or invalid value, or missing ; for int/float", cont);
}
val = cont.substring(0, endcont);
val = (type == "i" ? parseInt(val) : parseFloat(val));
rest = cont.substring(endcont + 1);
break;
case "a": // array
if (cont.length < 4) {
this.raiseError("array is too short", cont);
return;
}
divpos = cont.indexOf(":", 1);
if (divpos == -1) {
this.raiseError("missing : for array", cont);
return;
}
size = parseInt(cont.substring(0, divpos));
cont = cont.substring(divpos + 2);
val = new Array();
if (cont.length < 1) {
this.raiseError("array is too short", cont);
return;
}
for (var i = 0; i < size; i++) {
kret = this.unserialize(cont, 1);
if (this.error || kret[0] == undefined || kret[1] == "") {
this.raiseError("missing or invalid key, or missing value for array", cont);
return;
}
vret = this.unserialize(kret[1], 1);
if (this.error) {
this.raiseError("invalid value for array", cont);
return;
}
val[kret[0]] = vret[0];
cont = vret[1];
}
if (cont.charAt(0) != "}") {
this.raiseError("missing ending }, or too many values for array", cont);
return;
}
rest = cont.substring(1);
break;
case "O": // object
divpos = cont.indexOf(":");
if (divpos == -1) {
this.raiseError("missing : for object", cont);
return;
}
size = parseInt(cont.substring(0, divpos));
var objname = cont.substring(divpos + 2, divpos + 2 + size);
if (cont.substring(divpos + 2 + size, divpos + 4 + size) != "\":") {
this.raiseError("object name is too long, or missing \":", cont);
return;
}
var objprops = this.unserialize("a:" + cont.substring(divpos + 4 + size), 1);
if (this.error) {
this.raiseError("invalid object properties", cont);
return;
}
rest = objprops[1];
var objout = "function " + objname + "(){";
for (key in objprops[0]) {
objout += "this." + key + "=objprops[0]['" + key + "'];";
}
objout += "}val=new " + objname + "();";
eval(objout);
break;
default:
this.raiseError("invalid input type", cont);
}
return (arguments.length == 1 ? val : [val, rest]);
},
// }}}
// {{{ getError
/**
* Gets the last error message
*
* @return string the last error message from unserialize()
*/
getError: function() {
return this.message + "\n" + this.cont;
},
// }}}
// {{{ raiseError
/**
* Raises an eror (called by unserialize().)
*
* @param string message the error message
* @param string cont the remaining unserialized content
*/
raiseError: function(message, cont) {
this.error = 1;
this.message = message;
this.cont = cont;
}
// }}}
}
// }}}