Broke up the main file and fixed the bug causing the page to get corrupted

1 files changed, 0 insertions, 532 deletions

diff --git a/eval_test.js b/eval_test.js
deleted file mode 100644
index f59aed2..0000000
--- a/eval_test.js
+++ /dev/null
@@ -1,532 +0,0 @@
-
-/**
-*	This file is the "skeleton" of the final system to determine
-*	if a script is accepted or blocked.
-*
-*	Some assets taken from script_detector.js
-*
-*/
-
-// the list of all available event attributes
-var intrinsic_events = [
-    "onload",
-    "onunload",
-    "onclick",
-    "ondblclick",
-    "onmousedown",
-    "onmouseup",
-    "onmouseover",
-    "onmousemove",
-    "onmouseout",
-    "onfocus",
-    "onblur",
-    "onkeypress",
-    "onkeydown",
-    "onkeyup",
-    "onsubmit",
-    "onreset",
-    "onselect",
-    "onchange"
-];
-/*
-	NONTRIVIAL THINGS:
-	- Fetch
-	- XMLhttpRequest
-	- eval()
-	- ?
-	JAVASCRIPT CAN BE FOUND IN:
-	- Event handlers (onclick, onload, onsubmit, etc.)
-	- <script>JS</script>
-	- <script src="/JS.js"></script>
-	WAYS TO DETERMINE PASS/FAIL:
-	- "// @license [magnet link] [identifier]" then "// @license-end" (may also use /* comments)
-	- Automatic whitelist: (http://bzr.savannah.gnu.org/lh/librejs/dev/annotate/head:/data/script_libraries/script-libraries.json_
-	- <table id="jslicense-labels1"><table> which may be linked to by a link tag identified by rel="jslicense" or data-jslicense="1"
-	- In the first script tag, declare the license with @licstart/@licend
-*/
-
-var licenses = {
-	'Apache-2.0':{
-		'URL': 'http://www.apache.org/licenses/LICENSE-2.0',
-		'Magnet link': 'magnet:?xt=urn:btih:8e4f440f4c65981c5bf93c76d35135ba5064d8b7&dn=apache-2.0.txt'
-	},
-	// No identifier was present in documentation
-	'Artistic-2.0':{
-		'URL': 'http://www.perlfoundation.org/artistic_license_2_0',
-		'Magnet link': 'magnet:?xt=urn:btih:54fd2283f9dbdf29466d2df1a98bf8f65cafe314&dn=artistic-2.0.txt'
-	},
-	// No identifier was present in documentation
-	'Boost':{
-		'URL': 'http://www.boost.org/LICENSE_1_0.txt',
-		'Magnet link': 'magnet:?xt=urn:btih:89a97c535628232f2f3888c2b7b8ffd4c078cec0&dn=Boost-1.0.txt'
-	},
-	// No identifier was present in documentation
-	'BSD-3-Clause':{
-		'URL': 'http://opensource.org/licenses/BSD-3-Clause',
-		'Magnet link': 'magnet:?xt=urn:btih:c80d50af7d3db9be66a4d0a86db0286e4fd33292&dn=bsd-3-clause.txt',
-	},
-	'CPAL-1.0':{
-		'URL': 'http://opensource.org/licenses/cpal_1.0',
-		'Magnet link': 'magnet:?xt=urn:btih:84143bc45939fc8fa42921d619a95462c2031c5c&dn=cpal-1.0.txt'
-	},
-	'CC0-1.0':{
-		'URL': 'http://creativecommons.org/publicdomain/zero/1.0/legalcode',
-		'Magnet link': 'magnet:?xt=urn:btih:90dc5c0be029de84e523b9b3922520e79e0e6f08&dn=cc0.txt'
-	},
-	'EPL-1.0':{
-		'URL': 'http://www.eclipse.org/legal/epl-v10.html',
-		'Magnet link': 'magnet:?xt=urn:btih:4c6a2ad0018cd461e9b0fc44e1b340d2c1828b22&dn=epl-1.0.txt'
-	},
-	'Expat':{
-		'URL': 'http://www.jclark.com/xml/copying.txt',
-		'Magnet link': 'magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt'
-	},
-	'FreeBSD':{
-		'URL': 'http://www.freebsd.org/copyright/freebsd-license.html',
-		'Magnet link': 'magnet:?xt=urn:btih:87f119ba0b429ba17a44b4bffcab33165ebdacc0&dn=freebsd.txt'
-	},
-	'GPL-2.0':{
-		'URL': 'http://www.gnu.org/licenses/gpl-2.0.html',
-		'Magnet link': 'magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt'
-	},
-	'GPL-3.0':{
-		'URL': 'http://www.gnu.org/licenses/gpl-3.0.html',
-		'Magnet link': 'magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt'
-	},
-	'LGPL-2.1':{
-		'URL': 'http://www.gnu.org/licenses/lgpl-2.1.html',
-		'Magnet link': 'magnet:?xt=urn:btih:5de60da917303dbfad4f93fb1b985ced5a89eac2&dn=lgpl-2.1.txt'
-	},
-	'LGPL-3.0':{
-		'URL': 'http://www.gnu.org/licenses/lgpl-3.0.html',
-		'Magnet link': 'magnet:?xt=urn:btih:0ef1b8170b3b615170ff270def6427c317705f85&dn=lgpl-3.0.txt'
-	},
-	'AGPL-3.0':{
-		'URL': 'http://www.gnu.org/licenses/agpl-3.0.html',
-		'Magnet link': 'magnet:?xt=urn:btih:0b31508aeb0634b347b8270c7bee4d411b5d4109&dn=agpl-3.0.txt'
-	},
-	'ISC':{
-		'URL': 'https://www.isc.org/downloads/software-support-policy/isc-license/',
-		'Magnet link': 'magnet:?xt=urn:btih:b8999bbaf509c08d127678643c515b9ab0836bae&dn=ISC.txt'
-	},
-	'MPL-2.0':{
-		'URL': 'http://www.mozilla.org/MPL/2.0',
-		'Magnet link': 'magnet:?xt=urn:btih:3877d6d54b3accd4bc32f8a48bf32ebc0901502a&dn=mpl-2.0.txt'
-	},
-	// "Public domain is not a license"
-	// Replace with CC0?
-	'Public-Domain':{
-		'URL': 'https://www.gnu.org/licenses/license-list.html#PublicDomain',
-		'Magnet link': 'magnet:?xt=urn:btih:e95b018ef3580986a04669f1b5879592219e2a7a&dn=public-domain.txt'
-	},
-	'UPL-1.0': {
-		'URL': 'https://oss.oracle.com/licenses/upl/',
-		'Magnet link': 'magnet:?xt=urn:btih:478974f4d41c3fa84c4befba25f283527fad107d&dn=upl-1.0.txt'
-	},
-	'WTFPL': {
-		'URL': 'http://www.wtfpl.net/txt/copying/',
-		'Magnet link': 'magnet:?xt=urn:btih:723febf9f6185544f57f0660a41489c7d6b4931b&dn=wtfpl.txt'
-	},
-	'Unlicense':{
-		'URL': 'http://unlicense.org/UNLICENSE',
-		'Magnet link': 'magnet:?xt=urn:btih:5ac446d35272cc2e4e85e4325b146d0b7ca8f50c&dn=unlicense.txt'
-	},
-	// No identifier was present in documentation
-	'X11':{
-		'URL': 'http://www.xfree86.org/3.3.6/COPYRIGHT2.html#3',
-		'Magnet link': 'magnet:?xt=urn:btih:5305d91886084f776adcf57509a648432709a7c7&dn=x11.txt'	
-	},
-	// Picked one of the two links that were there
-	'Modified-BSD':{
-		'URL': 'http://www.xfree86.org/current/LICENSE4.html',
-		'Magnet link': 'magnet:?xt=urn:btih:12f2ec9e8de2a3b0002a33d518d6010cc8ab2ae9&dn=xfree86.txt'
-	}
-}
-
-// Objects which could be used to do nontrivial things
-// Bracket suffix notation could still be exploited to get some of these objects 
-var reserved_objects = [
-	"fetch",
-	"XMLHttpRequest",
-	"chrome", // only on chrome
-	"browser", // only on firefox
-	"eval"
-];
-
-function get_final_page(html_string, callback){
-
-	/**
-	*	Determines if a block of javascript is trivial or not.
-	*
-	*	true = trivial, false = nontrivial	
-	*
-	*/
-	function evaluate(script,name){
-		function reserved_object_regex(object){
-			// Matches use of object as a variable	
-			
-			// This accounts for both unary, binary and assignment operators
-			var arith_operators = "\\+\\-\\*\\/\\%\\=";
-			
-			// These are allowed to preceed or trail a variable as in 'if(true){eval("thiscode")};'
-			// However, if you have 'function(){eval}' where the "}" char trails "eval", this can't
-			// be used to invoke member objects or pass arguments.
-			var scope_chars = "\{\}\]\[\(\)\,";
-		
-			// No property accessors are allowed to follow the string stored in "object"
-			// Whitespace is allowed to come between these property accessors 
-			var trailing_chars = "\s*"+"\(\.\[";
-
-			return new RegExp("(?:[^\\w\\d]|^|(?:"+arith_operators+"))"+object+'(?:\\s*?(?:[\\;\\,\\.\\(\\[])\\s*?)',"g");
-		}		
-		reserved_object_regex("window");
-		// Strings
-		var all_strings = new RegExp('".*?"'+"|'.*?'","gm");
-		// multi-line "/*" "*/" comments
-		var ml_comment = /\/\*([\s\S]+?)\*\//g;
-		// in-line "//" comments
-		var il_comment = /\/\/.+/gm;
-		// The contents of bracket pairs
-		var bracket_pairs = /\[.+?\]/g;
-
-		// Replace string consts with values that won't interfere
-		var temp = script.replace(/'.+?'+/gm,"'string'");
-		temp = temp.replace(/".+?"+/gm,'"string"');
-		// Remove comments
-		temp = temp.replace(ml_comment,"");
-		temp = temp.replace(il_comment,"");
-		// Now that there can't be any brackets inside of comments or strings,
-		//  
-
-		console.log("------evaluation results for "+ name +"------");
-		console.log("Script accesses reserved objects?");
-		var flag = true;
-		for(var i = 0; i < reserved_objects.length; i++){
-			var res = reserved_object_regex(reserved_objects[i]).exec(script);
-			if(res != null){
-				console.log("%c fail","color:red;");
-				console.log(res["input"].substr(res["index"]-15,res["index"]+15));
-				flag = false;		
-			}
-		}
-		if(flag){
-			console.log("%c pass","color:green;");
-		}
-
-		return flag;
-	}
-
-	/**
-	*	Looks at the output of the @license regex and determines if the
-	*	license is good.
-	*/
-	function license_valid(matches){
-		// Being overly careful with safety checks
-		if(matches.length != 4){
-			return false;
-		}
-		if(matches[1] != "@license"){
-			return false;	
-		}
-		if(licenses[matches[3]] === undefined){
-			return false;
-		}
-		if(licenses[matches[3]]["Magnet link"] != matches[2]){
-			return false;
-		}
-		return true;
-	}
-	/**
-	*
-	*	Runs regexes to search for explicit delcarations of script
-	*	licenses on the argument. 
-	*	It detects:	
-	*	//@license, //@license-end
-	*	//licstart, //licend
-	*	
-	*	We are assuming that the "stack depth" of @license tags can not exceed 1.
-	*	If this isn't correct, we can make it recursive. 
-	*
-	*/
-	// TODO: Known bug: extra \n chars thrown in at some splices 
-	function license_read(script_src,name){
-		if(typeof(script_src) != "string"){
-			return "fail"
-		}
-		// Contains only good Javascript
-		var edited_src = "";
-		// Once Javascript has been "judged", remove it from here
-		var unedited_src = script_src;
-		var first = true;
-		while(true){
-			if(first){
-				first = false;
-				//console.log("input:");
-				//console.log("%c"+unedited_src,"color:#550000");
-			}
-			var matches = /^(@license)\s([\S]+)\s([\S]+$)/gm.exec(unedited_src);
-			if(matches == null){
-				//console.log("No more matches, almost done");
-				if(evaluate(unedited_src,name)){
-					edited_src += unedited_src;
-				}
-				return edited_src;
-			}
-			// operate on everything before the next match.
-			//console.log("Everything before the next match");
-			var before = unedited_src.substr(0,matches["index"]);
-			//console.log(before);
-			if(evaluate(before,name)){
-				edited_src += before;
-			}
-			// This should remove the substring "before"
-			unedited_src = unedited_src.substr(matches["index"],unedited_src.length);
-			// find the end tag and check if it is valid
-			matches_end = /^(@license-end)/gm.exec(unedited_src);
-			if(matches_end == null){
-				console.log("ERROR: @license with no @license-end");
-				return [false,"ERROR: @license with no @license-end"];
-			}
-			var endtag_end_index = matches_end["index"]+matches_end[0].length;
-			// accept next tag if its license is good.
-			if(license_valid(matches)){
-				edited_src =  edited_src + unedited_src.substr(0,endtag_end_index);
-			}
-			// Remove the next tag (it will be in edited_src if it was accepted)
-			unedited_src = unedited_src.substr(endtag_end_index,unedited_src.length);
-			//console.log("New input after iteration:");		
-			//console.log("%c"+unedited_src,"color:red;");
-			//console.log("Current output:");
-			//console.log("%c"+edited_src,"color:green;");
-		}
-	}
-	/**
-	*
-	*	Checks the whitelist in storage
-	*	(Not the comma seperated whitelist from settings)
-	*
-	*/
-	function is_whitelisted(){
-		// TODO: implement when this is a background script
-		return false;
-	}
-
-
-	/**
-	*	Parses the weblabels table from a DOM object
-	*
-	*/
-	function read_weblabels_table(weblabel){
-		var data = {};
-		var tbody = weblabel.getElementsByTagName("td");
-		for(var i = 0; i < tbody.length; i++){
-			var link = tbody[i].getElementsByTagName("a")[0];
-			//console.log(link.href);
-			if(link.innerText in licenses){
-				console.log("%cFree: " + link.innerText,"color:green;");
-				data[encodeURI(link.innerText)] = "free";
-			} else{
-				console.log("%cUnknown: " + link.innerText,"color:red;");
-				data[encodeURI(link.innerText)] = "unknown";
-			}
-		}
-		console.log("web labels table data:");
-		console.log(data);
-		return data;
-	}
-
-	/**
-	*	Reads the weblabels table from a link.
-	*
-	*/
-	function get_table(html_doc, callback, url){
-		var xml = new XMLHttpRequest();
-		xml.open("get",url);
-		xml.onload = function(){
-			var a = new DOMParser()
-			var doc = a.parseFromString(this.responseText,"text/html");
-			var web_label = doc.getElementById("jslicense-labels1");
-			if(web_label != null){
-				read_w_table(html_doc, callback, table_data=read_weblabels_table(web_label));
-			}
-		}
-		xml.send();
-	}
-	/**
-	*	Basically an extension of "analyze" 
-	*
-	*	Calls license_read() on all the document's scripts. license_read() then returns an edited version
-	*	according to license status and trivial/nontrivial status.
-	*
-	*	Added because I was having async issues	
-	*/
-	function read_w_table(html_doc, callback, table_data=false){
-		
-		var has_intrinsic_events = [];
-		for(var i = 0; i < html_doc.all.length; i++){
-			for(var j = 0; j < intrinsicEvents.length; j++){
-				if(intrinsicEvents[j] in html_doc.all[i].attributes){
-					has_intrinsic_events.push([i,j]);
-				}
-			}
-		}
-
-		var done = false;
-		var amt_done = 0;
-		var amt_remote_scripts = 0;
-		var amt_todo = html_doc.scripts.length + has_intrinsic_events.length;
-
-		function check_done(){
-			console.log(amt_done + "/" + (amt_todo - amt_remote_scripts) );
-			if(amt_done > amt_todo){
-				console.warn("Not supposed to happen");
-			}
-			if(done == false && amt_done >= (amt_todo - amt_remote_scripts) ){
-				console.log("%c DONE.","color:red;");
-				callback(html_doc);
-				done = true;
-				// TODO: Convert this to async
-				// TODO: Call update_popup() here with reasons
-			}
-		}
-		// "i" is an index in html_doc.scripts
-		function edit_src(src, i, name){
-			var edited = license_read(src,name);
-			if(edited == "string"){
-				html_doc.scripts[i].outerHTML = "<script name='librejs-accepted'>"+edited+"</script>";
-			} else{
-				html_doc.scripts[i].outerHTML = "<script name='librejs-denied'>"+name+"</script>";
-			}
-			amt_done++;
-		}
-		// "i" is an index in html_doc.all
-		// "j" is an index in intrinsicEvents
-		function edit_event(src,i,j,name){
-			var edited = license_read(src,name);
-
-			if(edited == "string"){
-				html_doc.all[i].attributes[intrinsicEvents[j]].value = edited;
-			} else{
-				html_doc.all[i].attributes[intrinsicEvents[j]].value = "//Denied by LibreJS";
-			}
-			amt_done++;
-		}
-
-		for(var i = 0; i < html_doc.scripts.length; i++){
-			// convert between relative link and file name (table_data indexes by file name)
-			var tok_index = html_doc.scripts[i].src.split("/").length;
-			var scriptname = html_doc.scripts[i].src.split("/")[tok_index-1];
-
-			if(table_data != false && scriptname in table_data){
-				console.log("script contained in weblabel data.");
-				if(table_data[scriptname] == "free"){
-					console.log("script is free");
-					continue;
-				}
-
-				console.log("script is unknown");		
-			}
-
-			if(html_doc.scripts[i].src != ""){
-				// this is a remote script ("<script src='script.js'></script>")
-				var name = html_doc.scripts[i].src;
-				console.log("%c Will evaluate script '" + name + "' when it arrives. Document.scripts index: "+i,"color:blue;");	
-				amt_remote_scripts++;
-
-			} else{
-				// it is an inline script ("<script>console.log('test');</script>")
-				console.log("%c Evaluating inline script. Document.scripts index: "+i,"color:blue;");
-				//console.log(html_doc.scripts[i].innerText);
-				edit_src(html_doc.scripts[i].innerText, i, "src: inline (index "+i+")");
-			}	
-		}
-		// Find all the document's elements with intrinsic events
-		for(var i = 0; i < has_intrinsic_events.length; i++){
-			var s_name = "html_doc.all["+has_intrinsic_events[i][0]+"]";
-			edit_event(html_doc.all[has_intrinsic_events[i][0]].attributes[intrinsicEvents[has_intrinsic_events[i][1]]].value,has_intrinsic_events[i][0],has_intrinsic_events[i][1],s_name);
-		}
-
-		check_done();
-
-	}
-	/*
-	*	Basically just calls license_read() on all the Javascript in html_source
-	*/
-	function analyze(html_source,callback){
-		// TODO: Call get_whitelisted_status on this page's URL
-
-		var parser = new DOMParser();
-		var html_doc = parser.parseFromString(html_source, "text/html");
-
-		// Test "the first piece of Javascript available to the page" for the license comment
-		var finished = false;
-		if(html_doc.scripts[0] !== undefined){
-			if(html_doc.scripts[0].src != ""){
-				// this function is here because otherwise there would be async issues
-				function get_first_js(){
-					var name = html_doc.scripts[0].src;
-					var xml = new XMLHttpRequest();
-					xml.open("get", html_doc.scripts[0].src);
-					xml.onload = function(response){
-						var matches = this.responseText.match(/@licstart[\s\S]+@licend/g);
-						if(matches != null){
-							console.log("License comment found:");
-							console.log(matches[0]);
-							console.log("Trusting that the entire page is freely licensed.");
-							callback(true);
-						}
-					}
-					xml.send();
-				}
-				get_first_js();
-			} else{
-				console.log("%c Script " + i + ": (src: inline)","color:red;");
-				var matches = html_doc.scripts[0].innerText.match(/@licstart[\s\S]+@licend/g);
-				if(matches != null){
-					console.log("License comment found:");
-					console.log(matches[0]);
-					console.log("Trusting that the entire page is freely licensed.");
-					callback(true);
-				}
-			}	
-		}
-
-		var table_data = {};
-		var found_table_flag = false;
-		// Test for the link that has rel="jslicense", data-jslicense="1"  
-		for(var i = 0; i < html_doc.links.length; i++){
-			// TODO: also check if data-jslicense == "1". (how?)
-			if(html_doc.links[i].rel == "jslicense"){
-				console.log("Found HTML table link:");
-				get_table(html_doc, callback, html_doc.links[i].href);			
-				found_table_flag = true;			
-				break;
-			}
-		}
-		// Test for the JavaScript Web Labels table on this page
-		var weblabel = html_doc.getElementById("jslicense-labels1");
-		if(weblabel !== undefined && weblabel != null && found_table_flag == false){
-			console.log("Found web labels table");
-			read_w_table(html_doc, callback, table_data=read_weblabels_table(weblabel));
-		} 
-		if(found_table_flag == false){
-			read_w_table(html_doc, callback);
-		}
-	}
-
-	analyze(html_string,callback);
-
-}
-
-get_final_page(document.documentElement.outerHTML,function(a){
-	console.log("returned");
-	if(typeof(a) == "boolean"){
-		return;
-	}
-	document.documentElement.innerHTML = a.documentElement.innerHTML;
-});
-
-
-
-
-