diff options
| -rw-r--r-- | main_background.js | 113 |
1 files changed, 102 insertions, 11 deletions
diff --git a/main_background.js b/main_background.js index b91eeca..3504112 100644 --- a/main_background.js +++ b/main_background.js @@ -1,6 +1,11 @@ +// TO BUILD: +// browserify main_background.js -o bundle.js +// you'll have to get these required packages with npm: -var acorn = require('acorn'); +const acornbase = require("acorn"); +var acorn = require('acorn/dist/acorn_loose'); var jssha = require('jssha'); +var walk = require("acorn/dist/walk"); console.log("main_background.js"); @@ -23,7 +28,7 @@ var intrinsicEvents = [ "ondblclick", "onmousedown", "onmouseup", - "onmouseover", + "onmouseovr", "onmousemove", "onmouseout", "onfocus", @@ -719,19 +724,105 @@ function blocked_status(hash){ }); } /* *********************************************************************************************** */ + +// - For each definition of anything executable that gets a name, including methods: +// It must call only primitives. (except altering the dom, eval, ajax, square bracket notation) + + +// The number of conditionals and loops must be at most 3. + +// It does not declare an array more than 50 elements long. +// (This will be under VariableDeclarator) +// At every VariableDeclarator, see if it has + + +// It must not call itself + + +// "The number of conditionals and loops must be at most 5" +var loops = ["ForInStatement","ForStatement","DoWhileStatement","WhileStatement","IfStatement","SwitchStatement"]; + + /** * Rigorously determines if code is trivial or not based on the official triviality criterion */ function full_evaluate(script){ - try{ - var ast = window.parse(script); - }catch(e){ - console.log("%cError parsing","color:red;"); - return false; - } - console.log(ast); - return true; + var ast = acorn.parse_dammit(script); + + var amtloops = 0; + var conditionals = 0; + var flag = true; + walk.full(ast, node => { + if(flag){ + if(node.type != "Literal"){ + console.log("%c"+node.type+":","color:purple;"); + console.log(script.substring(node["start"],node["end"])); + } + + + + // Pretty sure this is bracket suffix notation + if(node.type == "MemberExpression"){ + console.log("%c NONTRIVIAL: Bracket suffix notation.","color:red"); + flag = false; + } + + + + + + + + // "It does not declare an array more than 50 elements long." + // (what about dictionaries?) + if(node.type == "ArrayExpression"){ + + var len = 0; + + try{ + var temp = script.substring(node["start"],node["end"]); + len = JSON.parse(temp).length; + } catch(e){ + console.warn("Invalid array?"); + len = 99; + } + + if(len > 50){ + console.log("%c NONTRIVIAL: Array longer than 50 elements. ("+len+")","color:red"); + flag = false; + } + + } + + // "The number of conditionals and loops must be at most 3." + for(var i = 0; i < loops.length; i++){ + if(node.type == loops[i]){ + amtloops++; + break; + } + } + + if(amtloops > 3){ + console.log("%c NONTRIVIAL: Too many loops/conditionals.","color:red"); + flag = false; + } + + } + }); + + if(flag == true){ + console.log("%cScript is trivial.","color:green"); + } + + return flag; + } +//full_evaluate("if(true){}if(true){}if(true){}if(true){}"); +//full_evaluate("var test =[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50];"); + +var test = 'object[test];'; +full_evaluate(test); +full_evaluate('object.test.method["something"];'); /** * Performs the initial pass on code to see if it needs to be completely parsed */ @@ -1088,7 +1179,7 @@ function edit_html(html,url,tabid,wl){ } /** * Callback for main frame requests -* +* */ function read_document(a){ |