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-rw-r--r--main_background.js16
-rw-r--r--manifest.json4
-rw-r--r--test.js71
-rw-r--r--test_bundle.js69
4 files changed, 103 insertions, 57 deletions
diff --git a/main_background.js b/main_background.js
index d26c5f8..c61c4f2 100644
--- a/main_background.js
+++ b/main_background.js
@@ -1569,7 +1569,7 @@ var fname_data = {
"NodeList": true,
"StopIteration": true
};
-//************************Comes from HTML file index.html's script test.js****************************
+//************************this part can be tested in the HTML file index.html's script test.js****************************
function full_evaluate(script){
var res = true;
@@ -1679,11 +1679,13 @@ function full_evaluate(script){
}
}
// Is there bracket suffix notation?
- if(is_bsn(toke.end)){
- dbg_print("%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'","color:red");
- if(DEBUG == false){
- return [false,"NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'"];
- }
+ if(operators[toke.value] === undefined){
+ if(is_bsn(toke.end)){
+ dbg_print("%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'","color:red");
+ if(DEBUG == false){
+ return [false,"NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'"];
+ }
+ }
}
}else{
dbg_print("trivial token:"+toke.value);
@@ -1695,8 +1697,6 @@ function full_evaluate(script){
}catch(e){
dbg_print("Denied script because it cannot be parsed.");
return [false,"NONTRIVIAL: Cannot be parsed."];
- console.warn("Continuing evaluation");
- error_count++;
}
}
diff --git a/manifest.json b/manifest.json
index 9e46fab..197bd0b 100644
--- a/manifest.json
+++ b/manifest.json
@@ -3,11 +3,11 @@
"name": "GNU LibreJS [webExtensions]",
"short_name": "LibreJS [experimental]",
"version": "7.0",
- "author": "See file 'authors'",
+ "author": "various",
"description": "Only allows free and/or trivial Javascript to run.",
"applications": {
"gecko": {
- "id": "bug-librejs@gnu.org",
+ "id": "librejs_webex@gnu.org",
"strict_min_version": "42.0"
}
},
diff --git a/test.js b/test.js
index 1302d90..4e10d8a 100644
--- a/test.js
+++ b/test.js
@@ -847,23 +847,34 @@ console.log("DEBUG:"+DEBUG);
function dbg_print(a,b){
if(DEBUG == true){
- console.log(a,b)
+ //console.log(a,b)
}
}
-
function full_evaluate(script){
var res = true;
if(script === undefined || script == ""){
- return true;
+ return [true,"Harmless null script"];
}
+
var ast = acorn.parse_dammit(script).body[0];
var flag = false;
var amtloops = 0;
var loopkeys = {"for":true,"if":true,"while":true,"switch":true};
- var tokens = acorn_base.tokenizer(script);
- var toke = tokens.getToken();
+ var operators = {"||":true,"&&":true,"=":true,"==":true,"++":true,"--":true,"+=":true,"-=":true,"*":true};
+ try{
+ var tokens = acorn_base.tokenizer(script);
+ }catch(e){
+ console.warn("Tokenizer could not be initiated (probably invalid code)");
+ return [false,"Tokenizer could not be initiated (probably invalid code)"];
+ }
+ try{
+ var toke = tokens.getToken();
+ }catch(e){
+ console.warn("couldn't get first token (probably invalid code)");
+ console.warn("Continuing evaluation");
+ }
/**
* Given the end of an identifer token, it tests for bracket suffix notation
@@ -899,16 +910,16 @@ function full_evaluate(script){
return false;
}
}
+ var error_count = 0;
while(toke.type != acorn_base.tokTypes.eof){
- console.log(toke);
if(toke.type.keyword !== undefined){
// This type of loop detection ignores functional loop alternatives and ternary operators
- dbg_print("Keyword:"+toke.type.keyword);
-
+ //dbg_print("Keyword:"+toke.type.keyword);
+ console.log(toke);
if(toke.type.keyword == "function"){
dbg_print("%c NONTRIVIAL: Function declaration.","color:red");
if(DEBUG == false){
- return false;
+ return [false,"NONTRIVIAL: Function declaration."];
}
}
@@ -917,7 +928,7 @@ function full_evaluate(script){
if(amtloops > 3){
dbg_print("%c NONTRIVIAL: Too many loops/conditionals.","color:red");
if(DEBUG == false){
- return false;
+ return [false,"NONTRIVIAL: Too many loops/conditionals."];
}
}
}
@@ -926,42 +937,54 @@ function full_evaluate(script){
if(status === true){ // is the identifier banned?
dbg_print("%c NONTRIVIAL: nontrivial token: '"+toke.value+"'","color:red");
if(DEBUG == false){
- return false;
+ return [false,"NONTRIVIAL: nontrivial token: '"+toke.value+"'"];
}
}else if(status === false){// is the identifier not banned?
// Is there bracket suffix notation?
- if(is_bsn(toke.end)){
- dbg_print("%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'","color:red");
- if(DEBUG == false){
- return false;
- }
+ if(operators[toke.value] === undefined){
+ if(is_bsn(toke.end)){
+ dbg_print("%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'","color:red");
+ if(DEBUG == false){
+ return [false,"%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'"];
+ }
+ }
}
}else if(status === undefined){// is the identifier user defined?
// Are arguments being passed to a user defined variable?
if(being_called(toke.end)){
dbg_print("%c NONTRIVIAL: User defined variable '"+toke.value+"' called as function","color:red");
if(DEBUG == false){
- return false;
+ return [false,"NONTRIVIAL: User defined variable '"+toke.value+"' called as function"];
}
}
// Is there bracket suffix notation?
- if(is_bsn(toke.end)){
- dbg_print("%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'","color:red");
- if(DEBUG == false){
- return false;
- }
+ if(operators[toke.value] === undefined){
+ if(is_bsn(toke.end)){
+ dbg_print("%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'","color:red");
+ if(DEBUG == false){
+ return [false,"NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'"];
+ }
+ }
}
}else{
dbg_print("trivial token:"+toke.value);
}
}
// If not a keyword or an identifier it's some kind of operator, field parenthesis, brackets
- toke = tokens.getToken();
+ try{
+ toke = tokens.getToken();
+ }catch(e){
+ dbg_print("Denied script because it cannot be parsed.");
+ return [false,"NONTRIVIAL: Cannot be parsed."];
+ console.warn("Continuing evaluation");
+ error_count++;
+ }
}
dbg_print("%cAppears to be trivial.","color:green;");
- return true;
+ return [true,"Script appears to be trivial."];
}
+
//****************************************************************************************************
window.onload = function () {
diff --git a/test_bundle.js b/test_bundle.js
index 5d38cd8..62b50d6 100644
--- a/test_bundle.js
+++ b/test_bundle.js
@@ -851,20 +851,31 @@ function dbg_print(a,b){
console.log(a,b)
}
}
-
function full_evaluate(script){
var res = true;
if(script === undefined || script == ""){
- return true;
+ return [true,"Harmless null script"];
}
+
var ast = acorn.parse_dammit(script).body[0];
var flag = false;
var amtloops = 0;
var loopkeys = {"for":true,"if":true,"while":true,"switch":true};
- var tokens = acorn_base.tokenizer(script);
- var toke = tokens.getToken();
+ var operators = {"||":true,"&&":true,"=":true,"==":true,"++":true,"--":true,"+=":true,"-=":true,"*":true};
+ try{
+ var tokens = acorn_base.tokenizer(script);
+ }catch(e){
+ console.warn("Tokenizer could not be initiated (probably invalid code)");
+ return [false,"Tokenizer could not be initiated (probably invalid code)"];
+ }
+ try{
+ var toke = tokens.getToken();
+ }catch(e){
+ console.warn("couldn't get first token (probably invalid code)");
+ console.warn("Continuing evaluation");
+ }
/**
* Given the end of an identifer token, it tests for bracket suffix notation
@@ -900,16 +911,16 @@ function full_evaluate(script){
return false;
}
}
+ var error_count = 0;
while(toke.type != acorn_base.tokTypes.eof){
- console.log(toke);
if(toke.type.keyword !== undefined){
// This type of loop detection ignores functional loop alternatives and ternary operators
- dbg_print("Keyword:"+toke.type.keyword);
-
+ //dbg_print("Keyword:"+toke.type.keyword);
+ console.log(toke);
if(toke.type.keyword == "function"){
dbg_print("%c NONTRIVIAL: Function declaration.","color:red");
if(DEBUG == false){
- return false;
+ return [false,"NONTRIVIAL: Function declaration."];
}
}
@@ -918,7 +929,7 @@ function full_evaluate(script){
if(amtloops > 3){
dbg_print("%c NONTRIVIAL: Too many loops/conditionals.","color:red");
if(DEBUG == false){
- return false;
+ return [false,"NONTRIVIAL: Too many loops/conditionals."];
}
}
}
@@ -927,42 +938,54 @@ function full_evaluate(script){
if(status === true){ // is the identifier banned?
dbg_print("%c NONTRIVIAL: nontrivial token: '"+toke.value+"'","color:red");
if(DEBUG == false){
- return false;
+ return [false,"NONTRIVIAL: nontrivial token: '"+toke.value+"'"];
}
}else if(status === false){// is the identifier not banned?
// Is there bracket suffix notation?
- if(is_bsn(toke.end)){
- dbg_print("%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'","color:red");
- if(DEBUG == false){
- return false;
- }
+ if(operators[toke.value] === undefined){
+ if(is_bsn(toke.end)){
+ dbg_print("%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'","color:red");
+ if(DEBUG == false){
+ return [false,"%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'"];
+ }
+ }
}
}else if(status === undefined){// is the identifier user defined?
// Are arguments being passed to a user defined variable?
if(being_called(toke.end)){
dbg_print("%c NONTRIVIAL: User defined variable '"+toke.value+"' called as function","color:red");
if(DEBUG == false){
- return false;
+ return [false,"NONTRIVIAL: User defined variable '"+toke.value+"' called as function"];
}
}
// Is there bracket suffix notation?
- if(is_bsn(toke.end)){
- dbg_print("%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'","color:red");
- if(DEBUG == false){
- return false;
- }
+ if(operators[toke.value] === undefined){
+ if(is_bsn(toke.end)){
+ dbg_print("%c NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'","color:red");
+ if(DEBUG == false){
+ return [false,"NONTRIVIAL: Bracket suffix notation on variable '"+toke.value+"'"];
+ }
+ }
}
}else{
dbg_print("trivial token:"+toke.value);
}
}
// If not a keyword or an identifier it's some kind of operator, field parenthesis, brackets
- toke = tokens.getToken();
+ try{
+ toke = tokens.getToken();
+ }catch(e){
+ dbg_print("Denied script because it cannot be parsed.");
+ return [false,"NONTRIVIAL: Cannot be parsed."];
+ console.warn("Continuing evaluation");
+ error_count++;
+ }
}
dbg_print("%cAppears to be trivial.","color:green;");
- return true;
+ return [true,"Script appears to be trivial."];
}
+
//****************************************************************************************************
window.onload = function () {
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 01:37:42 +0000