-
Notifications
You must be signed in to change notification settings - Fork 1
/
sessvars.js
215 lines (202 loc) · 6.55 KB
/
sessvars.js
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
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
52
53
54
55
56
57
58
59
60
61
62
63
64
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
91
92
93
94
95
96
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
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
/*
sessvars ver 1.01
- JavaScript based session object
copyright 2008 Thomas Frank
This EULA grants you the following rights:
Installation and Use. You may install and use an unlimited number of copies of the SOFTWARE PRODUCT.
Reproduction and Distribution. You may reproduce and distribute an unlimited number of copies of the SOFTWARE PRODUCT either in whole or in part; each copy should include all copyright and trademark notices, and shall be accompanied by a copy of this EULA. Copies of the SOFTWARE PRODUCT may be distributed as a standalone product or included with your own product.
Commercial Use. You may sell for profit and freely distribute scripts and/or compiled scripts that were created with the SOFTWARE PRODUCT.
v 1.0 --> 1.01
sanitizer added to toObject-method & includeFunctions flag now defaults to false
*/
sessvars=function(){
var x={};
x.$={
prefs:{
memLimit:2000,
autoFlush:true,
crossDomain:false,
includeProtos:false,
includeFunctions:false
},
parent:x,
clearMem:function(){
for(var i in this.parent){if(i!="$"){this.parent[i]=undefined}};
this.flush();
},
usedMem:function(){
x={};
return Math.round(this.flush(x)/1024);
},
usedMemPercent:function(){
return Math.round(this.usedMem()/this.prefs.memLimit);
},
flush:function(x){
var y,o={},j=this.$$;
x=x||top;
for(var i in this.parent){o[i]=this.parent[i]};
o.$=this.prefs;
j.includeProtos=this.prefs.includeProtos;
j.includeFunctions=this.prefs.includeFunctions;
y=this.$$.make(o);
if(x!=top){return y.length};
if(y.length/1024>this.prefs.memLimit){return false}
x.name=y;
return true;
},
getDomain:function(){
var l=location.href
l=l.split("///").join("//");
l=l.substring(l.indexOf("://")+3).split("/")[0];
while(l.split(".").length>2){l=l.substring(l.indexOf(".")+1)};
return l
},
debug:function(t){
var t=t||this,a=arguments.callee;
if(!document.body){setTimeout(function(){a(t)},200);return};
t.flush();
var d=document.getElementById("sessvarsDebugDiv");
if(!d){d=document.createElement("div");document.body.insertBefore(d,document.body.firstChild)};
d.id="sessvarsDebugDiv";
d.innerHTML='<div style="line-height:20px;padding:5px;font-size:11px;font-family:Verdana,Arial,Helvetica;'+
'z-index:10000;background:#FFFFCC;border: 1px solid #333;margin-bottom:12px">'+
'<b style="font-family:Trebuchet MS;font-size:20px">sessvars.js - debug info:</b><br/><br/>'+
'Memory usage: '+t.usedMem()+' Kb ('+t.usedMemPercent()+'%) '+
'<span style="cursor:pointer"><b>[Clear memory]</b></span><br/>'+
top.name.split('\n').join('<br/>')+'</div>';
d.getElementsByTagName('span')[0].onclick=function(){t.clearMem();location.reload()}
},
init:function(){
var o={}, t=this;
try {o=this.$$.toObject(top.name)} catch(e){o={}};
this.prefs=o.$||t.prefs;
if(this.prefs.crossDomain || this.prefs.currentDomain==this.getDomain()){
for(var i in o){this.parent[i]=o[i]};
}
else {
this.prefs.currentDomain=this.getDomain();
};
this.parent.$=t;
t.flush();
var f=function(){if(t.prefs.autoFlush){t.flush()}};
if(window["addEventListener"]){addEventListener("unload",f,false)}
else if(window["attachEvent"]){window.attachEvent("onunload",f)}
else {this.prefs.autoFlush=false};
}
};
x.$.$$={
compactOutput:false,
includeProtos:false,
includeFunctions: false,
detectCirculars:true,
restoreCirculars:true,
make:function(arg,restore) {
this.restore=restore;
this.mem=[];this.pathMem=[];
return this.toJsonStringArray(arg).join('');
},
toObject:function(x){
if(!this.cleaner){
try{this.cleaner=new RegExp('^("(\\\\.|[^"\\\\\\n\\r])*?"|[,:{}\\[\\]0-9.\\-+Eaeflnr-u \\n\\r\\t])+?$')}
catch(a){this.cleaner=/^(true|false|null|\[.*\]|\{.*\}|".*"|\d+|\d+\.\d+)$/}
};
if(!this.cleaner.test(x)){return {}};
eval("this.myObj="+x);
if(!this.restoreCirculars || !alert){return this.myObj};
if(this.includeFunctions){
var x=this.myObj;
for(var i in x){if(typeof x[i]=="string" && !x[i].indexOf("JSONincludedFunc:")){
x[i]=x[i].substring(17);
eval("x[i]="+x[i])
}}
};
this.restoreCode=[];
this.make(this.myObj,true);
var r=this.restoreCode.join(";")+";";
eval('r=r.replace(/\\W([0-9]{1,})(\\W)/g,"[$1]$2").replace(/\\.\\;/g,";")');
eval(r);
return this.myObj
},
toJsonStringArray:function(arg, out) {
if(!out){this.path=[]};
out = out || [];
var u; // undefined
switch (typeof arg) {
case 'object':
this.lastObj=arg;
if(this.detectCirculars){
var m=this.mem; var n=this.pathMem;
for(var i=0;i<m.length;i++){
if(arg===m[i]){
out.push('"JSONcircRef:'+n[i]+'"');return out
}
};
m.push(arg); n.push(this.path.join("."));
};
if (arg) {
if (arg.constructor == Array) {
out.push('[');
for (var i = 0; i < arg.length; ++i) {
this.path.push(i);
if (i > 0)
out.push(',\n');
this.toJsonStringArray(arg[i], out);
this.path.pop();
}
out.push(']');
return out;
} else if (typeof arg.toString != 'undefined') {
out.push('{');
var first = true;
for (var i in arg) {
if(!this.includeProtos && arg[i]===arg.constructor.prototype[i]){continue};
this.path.push(i);
var curr = out.length;
if (!first)
out.push(this.compactOutput?',':',\n');
this.toJsonStringArray(i, out);
out.push(':');
this.toJsonStringArray(arg[i], out);
if (out[out.length - 1] == u)
out.splice(curr, out.length - curr);
else
first = false;
this.path.pop();
}
out.push('}');
return out;
}
return out;
}
out.push('null');
return out;
case 'unknown':
case 'undefined':
case 'function':
if(!this.includeFunctions){out.push(u);return out};
arg="JSONincludedFunc:"+arg;
out.push('"');
var a=['\n','\\n','\r','\\r','"','\\"'];
arg+=""; for(var i=0;i<6;i+=2){arg=arg.split(a[i]).join(a[i+1])};
out.push(arg);
out.push('"');
return out;
case 'string':
if(this.restore && arg.indexOf("JSONcircRef:")==0){
this.restoreCode.push('this.myObj.'+this.path.join(".")+"="+arg.split("JSONcircRef:").join("this.myObj."));
};
out.push('"');
var a=['\n','\\n','\r','\\r','"','\\"'];
arg+=""; for(var i=0;i<6;i+=2){arg=arg.split(a[i]).join(a[i+1])};
out.push(arg);
out.push('"');
return out;
default:
out.push(String(arg));
return out;
}
}
};
x.$.init();
return x;
}()