fix: extract deobf data with global strings variable

This commit is contained in:
ThetaDev 2025-03-24 01:12:01 +01:00
parent e8acbfbbcf
commit 4ce6746be5
No known key found for this signature in database
GPG key ID: E319D3C5148D65B6
3 changed files with 206 additions and 151 deletions

View file

@ -625,7 +625,7 @@ impl<'a> StreamsMapper<'a> {
fn deobf(&self) -> Result<&Deobfuscator, DeobfError> {
self.deobf
.as_ref()
.ok_or(DeobfError::Other("no deobfuscator"))
.ok_or(DeobfError::Other("no deobfuscator".into()))
}
fn cipher_to_url_params(

View file

@ -3,7 +3,7 @@ use std::collections::HashMap;
use once_cell::sync::Lazy;
use regex::Regex;
use reqwest::Client;
use ress::tokens::Token;
use ress::tokens::{Keyword, Punct, Token};
use rquickjs::{Context, Runtime};
use serde::{Deserialize, Serialize};
@ -106,7 +106,7 @@ impl Deobfuscator {
.with(|ctx| call_fn(&ctx, DEOBF_NSIG_FUNC_NAME, nsig))?;
tracing::trace!("deobf nsig: {nsig} -> {res}");
if res.starts_with("enhanced_except_") || res.ends_with(nsig) {
return Err(DeobfError::Other("nsig fn returned an exception"));
return Err(DeobfError::Other("nsig fn returned an exception".into()));
}
Ok(res)
}
@ -134,55 +134,21 @@ fn caller_function(mapped_name: &str, fn_name: &str) -> String {
}
fn get_sig_fn(player_js: &str) -> Result<String, DeobfError> {
let dfunc_name = get_sig_fn_name(player_js)?;
let name = get_sig_fn_name(player_js)?;
let code = extract_js_fn(player_js, &name)?;
let js_fn = format!("{}{}", code, caller_function(DEOBF_SIG_FUNC_NAME, &name));
let function_pattern_str = format!(
r#"({}=function\([\w]+\)\{{.+?\}})"#,
dfunc_name.replace('$', "\\$")
);
let function_pattern = Regex::new(&function_pattern_str)
.map_err(|_| DeobfError::Other("could not parse sig fn pattern regex"))?;
let deobfuscate_function = format!(
"var {};",
&function_pattern
.captures(player_js)
.ok_or(DeobfError::Extraction("sig fn"))?[1]
);
let helper_object_name_pattern = Regex::new(r";([\w\$]{2,3})\...\(").unwrap();
let helper_object_name = helper_object_name_pattern
.captures(&deobfuscate_function)
.ok_or(DeobfError::Extraction("sig fn helper object name"))?
.get(1)
.unwrap()
.as_str();
let helper_pattern_str = format!(
r#"(var {}=\{{.+?\}}\}};)"#,
helper_object_name.replace('$', "\\$")
);
let helper_pattern = Regex::new(&helper_pattern_str)
.map_err(|_| DeobfError::Other("could not parse helper pattern regex"))?;
let player_js_nonl = player_js.replace('\n', "");
let helper_object = &helper_pattern
.captures(&player_js_nonl)
.ok_or(DeobfError::Extraction("sig fn helper object"))?[1];
let js_fn = helper_object.to_owned()
+ &deobfuscate_function
+ &caller_function(DEOBF_SIG_FUNC_NAME, &dfunc_name);
tracing::trace!("sig_fn: {js_fn}");
verify_fn(&js_fn, DEOBF_SIG_FUNC_NAME)?;
tracing::debug!("successfully extracted sig fn `{dfunc_name}`");
tracing::debug!("successfully extracted sig fn `{name}`");
Ok(js_fn)
}
fn get_nsig_fn_names(player_js: &str) -> impl Iterator<Item = String> + '_ {
static FUNCTION_NAME_REGEX: Lazy<Regex> = Lazy::new(|| {
// x.get( .. y=functionName[array_num](z) .. x.set(
Regex::new(r#"(?:[\w$]\.get\(|index\.m3u8).+[a-zA-Z]=([\w$]{2,})(?:\[(\d+)\])?\([a-zA-Z0-9]\).+[a-zA-Z0-9]\.set\("#)
// x.get( OR index.m3u8 OR delete x.y.file .. y=functionName[array_num](z) .. x.set(
Regex::new(r#"(?:[\w$]\.get\(|index\.m3u8|delete [\w$]+\.[\w$]+\.file).+[a-zA-Z]=([\w$]{2,})(?:\[(\d+)\])?\([a-zA-Z0-9]\).+[a-zA-Z0-9]\.set\("#)
.unwrap()
});
@ -206,17 +172,32 @@ fn get_nsig_fn_names(player_js: &str) -> impl Iterator<Item = String> + '_ {
})
}
fn extract_js_fn(js: &str, offset: usize, name: &str) -> Result<String, DeobfError> {
fn extract_js_fn(js: &str, name: &str) -> Result<String, DeobfError> {
let function_base_re = Regex::new(&format!(r#"{}\s*=\s*function\("#, regex::escape(name)))
.map_err(|e| DeobfError::Other(format!("parsing regex for {name}: {e}").into()))?;
let offset = function_base_re
.find(js)
.ok_or(DeobfError::Extraction("could not find function base"))?
.start();
let scan = ress::Scanner::new(&js[offset..]);
let mut state = 0;
let mut level = 0;
let mut start = 0;
let mut end = 0;
#[derive(Default, Clone, PartialEq, Eq)]
struct Level {
brace: isize,
paren: isize,
}
let mut level = Level::default();
let mut start = 0usize;
let mut end = 0usize;
let mut period_before = false;
let mut last_ident = None;
let mut idents: HashMap<String, usize> = HashMap::new();
let mut idents: HashMap<String, bool> = HashMap::new();
// Set if the current statement is a variable/function param definition
let mut var_def_stmt: Option<(Level, bool)> = None;
let global_objects = [
"NaN", "Infinity", "Object", "Function", "Boolean", "Symbol", "Error", "Number", "BigInt",
@ -236,39 +217,96 @@ fn extract_js_fn(js: &str, offset: usize, name: &str) -> Result<String, DeobfErr
}
// Looking for equals
1 => {
if token.matches_punct(ress::tokens::Punct::Equal) {
if token.matches_punct(Punct::Equal) {
state = 2;
} else {
state = 0;
}
}
2 => {
// Looking for begin/end braces
if token.matches_punct(ress::tokens::Punct::OpenBrace) {
level += 1;
} else if token.matches_punct(ress::tokens::Punct::CloseBrace) {
level -= 1;
if let Token::Punct(punct) = token {
match punct {
Punct::OpenBrace => {
level.brace += 1;
}
Punct::CloseBrace => {
if var_def_stmt
.as_ref()
.map(|(x, _)| x == &level)
.unwrap_or_default()
{
var_def_stmt = None;
}
level.brace -= 1;
if level == 0 {
end = it.span.end;
state = 3;
break;
if level.brace == 0 {
end = it.span.end;
state = 3;
break;
}
}
Punct::OpenParen => {
level.paren += 1;
}
Punct::CloseParen => {
if var_def_stmt
.as_ref()
.map(|(x, _)| x == &level)
.unwrap_or_default()
{
var_def_stmt = None;
}
level.paren -= 1;
}
Punct::SemiColon => {
var_def_stmt = None;
}
Punct::Comma => {
if let Some((lvl, en)) = &mut var_def_stmt {
if lvl == &level {
*en = false;
}
}
}
Punct::Equal => {
if let Some((lvl, en)) = &mut var_def_stmt {
if lvl == &level {
*en = true;
}
}
}
_ => {}
}
} else if let Token::Keyword(kw) = &token {
match kw {
Keyword::Var(_) | Keyword::Let(_) | Keyword::Const(_) => {
var_def_stmt = Some((level.clone(), false));
}
Keyword::Function(_) => {
let mut l = level.clone();
l.paren += 1;
var_def_stmt = Some((l, false));
}
_ => {}
}
}
// Looking for variable names
if let Token::Ident(id) = &token {
if !period_before {
let id_str = id.to_string();
if !global_objects.contains(&id_str.as_str()) {
// Ignore object attributes and 1char long local vars
if !period_before && id.as_ref().len() > 1 {
if var_def_stmt
.as_ref()
.map(|(lvl, en)| lvl == &level && !en)
.unwrap_or_default()
{
idents.insert(id.to_string(), true);
} else if !global_objects.contains(&id.as_ref()) {
last_ident = Some(id.to_string());
}
}
} else if last_ident.is_some()
&& !token.matches_punct(ress::tokens::Punct::OpenParen)
{
let n = idents.entry(last_ident.unwrap()).or_default();
*n += 1;
} else if last_ident.is_some() && !token.matches_punct(Punct::OpenParen) {
idents.entry(last_ident.unwrap()).or_default();
last_ident = None;
} else {
last_ident = None;
@ -276,7 +314,7 @@ fn extract_js_fn(js: &str, offset: usize, name: &str) -> Result<String, DeobfErr
}
_ => break,
};
period_before = token.matches_punct(ress::tokens::Punct::Period);
period_before = token.matches_punct(Punct::Period);
}
if state != 3 {
@ -287,9 +325,10 @@ fn extract_js_fn(js: &str, offset: usize, name: &str) -> Result<String, DeobfErr
let mut code = format!("var {};", &js[fn_range.clone()]);
let rt = rquickjs::Runtime::new()?;
for (ident, _) in idents.into_iter().filter(|(_, v)| *v == 1) {
let var_pattern_str = format!(r#"(^|[^\w$]){}\s*=[^=]"#, regex::escape(&ident));
let re = Regex::new(&var_pattern_str).unwrap();
for (ident, _) in idents.into_iter().filter(|(_, v)| !v) {
let var_pattern_str = format!(r#"(^|[^\w$\.]){}\s*=[^=]"#, regex::escape(&ident));
let re = Regex::new(&var_pattern_str)
.map_err(|e| DeobfError::Other(format!("parsing regex for {ident}: {e}").into()))?;
let found_variable = re
.captures_iter(js)
.filter(|cap| {
@ -347,13 +386,13 @@ fn extract_js_var(js: &str) -> Option<&str> {
if let Token::Punct(p) = &token {
match p {
ress::tokens::Punct::OpenBrace => braces.push(b'{'),
ress::tokens::Punct::OpenBracket => braces.push(b'['),
ress::tokens::Punct::OpenParen => braces.push(b'('),
ress::tokens::Punct::CloseBrace => close_brace(&mut braces, b'{')?,
ress::tokens::Punct::CloseBracket => close_brace(&mut braces, b'[')?,
ress::tokens::Punct::CloseParen => close_brace(&mut braces, b'(')?,
ress::tokens::Punct::Comma | ress::tokens::Punct::SemiColon => {
Punct::OpenBrace => braces.push(b'{'),
Punct::OpenBracket => braces.push(b'['),
Punct::OpenParen => braces.push(b'('),
Punct::CloseBrace => close_brace(&mut braces, b'{')?,
Punct::CloseBracket => close_brace(&mut braces, b'[')?,
Punct::CloseParen => close_brace(&mut braces, b'(')?,
Punct::Comma | Punct::SemiColon => {
if braces.is_empty() {
end = it.span.start;
break;
@ -388,23 +427,19 @@ fn verify_fn(js_fn: &str, fn_name: &str) -> Result<(), DeobfError> {
})?;
if res.is_empty() {
return Err(DeobfError::Other("deobfuscation fn returned empty string"));
return Err(DeobfError::Other(
"deobfuscation fn returned empty string".into(),
));
}
if res.starts_with("enhanced_except_") || res.ends_with(&testinp) {
return Err(DeobfError::Other("nsig fn returned an exception"));
return Err(DeobfError::Other("nsig fn returned an exception".into()));
}
Ok(())
}
fn get_nsig_fn(player_js: &str) -> Result<String, DeobfError> {
let extract_fn = |name: &str| -> Result<String, DeobfError> {
let function_base = format!("{name}=function");
let offset = player_js
.find(&function_base)
.ok_or(DeobfError::Extraction("could not find function base"))?;
let code = extract_js_fn(player_js, offset, name)?;
let code = extract_js_fn(player_js, name)?;
let js_fn = format!("{}{}", code, caller_function(DEOBF_NSIG_FUNC_NAME, name));
tracing::trace!("nsig_fn: {js_fn}");
verify_fn(&js_fn, DEOBF_NSIG_FUNC_NAME)?;
@ -472,7 +507,9 @@ mod tests {
std::fs::read_to_string(js_path).unwrap()
});
const SIG_DEOBF_FUNC: &str = r#"var qB={w8:function(a){a.reverse()},EC:function(a,b){var c=a[0];a[0]=a[b%a.length];a[b%a.length]=c},Np:function(a,b){a.splice(0,b)}};var Rva=function(a){a=a.split("");qB.Np(a,3);qB.w8(a,41);qB.EC(a,55);qB.Np(a,3);qB.w8(a,33);qB.Np(a,3);qB.EC(a,48);qB.EC(a,17);qB.EC(a,43);return a.join("")};var deobf_sig=Rva;"#;
const SIG_DEOBF_FUNC: &str = r#"var qB={w8:function(a){a.reverse()},
EC:function(a,b){var c=a[0];a[0]=a[b%a.length];a[b%a.length]=c},
Np:function(a,b){a.splice(0,b)}}; var Rva=function(a){a=a.split("");qB.Np(a,3);qB.w8(a,41);qB.EC(a,55);qB.Np(a,3);qB.w8(a,33);qB.Np(a,3);qB.EC(a,48);qB.EC(a,17);qB.EC(a,43);return a.join("")};var deobf_sig=Rva;"#;
const NSIG_DEOBF_FUNC: &str = r#"var Vo=function(a){var b=a.split(""),c=[function(d,e,f){var h=f.length;d.forEach(function(l,m,n){this.push(n[m]=f[(f.indexOf(l)-f.indexOf(this[m])+m+h--)%f.length])},e.split(""))},
928409064,-595856984,1403221911,653089124,-168714481,-1883008765,158931990,1346921902,361518508,1403221911,-362174697,-233641452,function(){for(var d=64,e=[];++d-e.length-32;){switch(d){case 91:d=44;continue;case 123:d=65;break;case 65:d-=18;continue;case 58:d=96;continue;case 46:d=95}e.push(String.fromCharCode(d))}return e},
b,158931990,791141857,-907319795,-1776185924,1595027902,-829736173,function(d,e){e=(e%d.length+d.length)%d.length;d.splice(0,1,d.splice(e,1,d[0])[0])},
@ -525,7 +562,7 @@ c[36](c[8],c[32]),c[20](c[25],c[10]),c[2](c[22],c[8]),c[32](c[20],c[16]),c[32](c
#[test]
fn t_extract_js_fn() {
let base_js = "Wka = function(d){let x=10/2;return /,,[/,913,/](,)}/}let a = 42;";
let res = extract_js_fn(base_js, 0, "Wka").unwrap();
let res = extract_js_fn(base_js, "Wka").unwrap();
assert_eq!(
res,
"var Wka = function(d){let x=10/2;return /,,[/,913,/](,)}/};"
@ -536,7 +573,7 @@ c[36](c[8],c[32]),c[20](c[25],c[10]),c[2](c[22],c[8]),c[32](c[20],c[16]),c[32](c
fn t_extract_js_fn_eviljs() {
// Evil JavaScript code containing braces within strings and regular expressions
let base_js = "Wka = function(d){var x = [/,,/,913,/(,)}/,\"abcdef}\\\"\",];var y = 10/2/1;return x[1][y];}//some={}random-padding+;";
let res = extract_js_fn(base_js, 0, "Wka").unwrap();
let res = extract_js_fn(base_js, "Wka").unwrap();
assert_eq!(
res,
"var Wka = function(d){var x = [/,,/,913,/(,)}/,\"abcdef}\\\"\",];var y = 10/2/1;return x[1][y];};"
@ -545,33 +582,33 @@ c[36](c[8],c[32]),c[20](c[25],c[10]),c[2](c[22],c[8]),c[32](c[20],c[16]),c[32](c
#[test]
fn t_extract_js_fn_outside_vars() {
let base_js = "let a = 42;foo();var b=11;bar();Wka = function(d){var x=1+2+a*b;return x;}";
let res = extract_js_fn(base_js, 0, "Wka").unwrap();
let base_js = "let a1 = 42;foo();var b1=11;var da=77;bar();Wka = function(da){var xy=1+2+a1*b1;return xy;}";
let res = extract_js_fn(base_js, "Wka").unwrap();
// order of variables is non-reproducible
assert!(
res == "var a = 42; var b=11; var Wka = function(d){var x=1+2+a*b;return x;};"
|| res == "var b=11; var a = 42; var Wka = function(d){var x=1+2+a*b;return x;};",
res == "var a1 = 42; var b1=11; var Wka = function(da){var xy=1+2+a1*b1;return xy;};"
|| res == "var b1=11; var a1 = 42; var Wka = function(da){var xy=1+2+a1*b1;return xy;};",
"got {res}"
);
}
#[test]
fn t_extract_js_fn_outside_vars2() {
let base_js = "{let a = {v1:1,v2:2}}foo();Wka = function(d){var x=1+2+a.v1;return x;}";
let res = extract_js_fn(base_js, 0, "Wka").unwrap();
let base_js = "{let a1 = {v1:1,v2:2}}foo();Wka = function(d){var x=1+2+a1.v1;return x;}";
let res = extract_js_fn(base_js, "Wka").unwrap();
assert_eq!(
res,
"var a = {v1:1,v2:2}; var Wka = function(d){var x=1+2+a.v1;return x;};"
"var a1 = {v1:1,v2:2}; var Wka = function(d){var x=1+2+a1.v1;return x;};"
);
}
#[test]
fn t_extract_js_fn_outside_vars3() {
let base_js = "Wka = function(d){var x=1+2+a[0];return x;};let a=[1,2,3]";
let res = extract_js_fn(base_js, 0, "Wka").unwrap();
let base_js = "Wka = function(d){var x=1+2+a1[0];return x;};let a1=[1,2,3]";
let res = extract_js_fn(base_js, "Wka").unwrap();
assert_eq!(
res,
"var a=[1,2,3]; var Wka = function(d){var x=1+2+a[0];return x;};"
"var a1=[1,2,3]; var Wka = function(d){var x=1+2+a1[0];return x;};"
);
}
@ -625,65 +662,81 @@ c[36](c[8],c[32]),c[20](c[25],c[10]),c[2](c[22],c[8]),c[32](c[20],c[16]),c[32](c
}
// Test cases from https://github.com/yt-dlp/yt-dlp/blob/master/test/test_youtube_signature.py
#[rstest]
#[case("6ed0d907", "AOq0QJ8wRAIgXmPlOPSBkkUs1bYFYlJCfe29xx8j7v1pDL2QwbdV96sCIEzpWqMGkFR20CFOg51Tp-7vj_EMu-m37KtXJoOySqa0")]
#[case("3bb1f723", "MyOSJXtKI3m-uME_jv7-pT12gOFC02RFkGoqWpzE0Cs69VdbwQ0LDp1v7j8xx92efCJlYFYb1sUkkBSPOlPmXgIARw8JQ0qOAOAA")]
#[case("2f1832d2", "0QJ8wRAIgXmPlOPSBkkUs1bYFYlJCfe29xxAj7v1pDL0QwbdV96sCIEzpWqMGkFR20CFOg51Tp-7vj_EMu-m37KtXJ2OySqa0q")]
#[tokio::test]
#[traced_test]
async fn sig_tests(#[case] js_hash: &str, #[case] exp_sig: &str) {
let (js_url, js_path) = player_js_file(js_hash).await;
let player_js = std::fs::read_to_string(js_path).unwrap();
let deobf_data = DeobfData::extract_fns(&js_url, &player_js).unwrap();
let deobf = Deobfuscator::new(&deobf_data).unwrap();
async fn sig_tests() {
let cases = [
("6ed0d907", "AOq0QJ8wRAIgXmPlOPSBkkUs1bYFYlJCfe29xx8j7v1pDL2QwbdV96sCIEzpWqMGkFR20CFOg51Tp-7vj_EMu-m37KtXJoOySqa0"),
("3bb1f723", "MyOSJXtKI3m-uME_jv7-pT12gOFC02RFkGoqWpzE0Cs69VdbwQ0LDp1v7j8xx92efCJlYFYb1sUkkBSPOlPmXgIARw8JQ0qOAOAA"),
("2f1832d2", "0QJ8wRAIgXmPlOPSBkkUs1bYFYlJCfe29xxAj7v1pDL0QwbdV96sCIEzpWqMGkFR20CFOg51Tp-7vj_EMu-m37KtXJ2OySqa0q"),
("643afba4", "AAOAOq0QJ8wRAIgXmPlOPSBkkUs1bYFYlJCfe29xx8j7vgpDL0QwbdV06sCIEzpWqMGkFR20CFOS21Tp-7vj_EMu-m37KtXJoOy1"),
];
let deobf_sig = deobf.deobfuscate_sig("2aq0aqSyOoJXtK73m-uME_jv7-pT15gOFC02RFkGMqWpzEICs69VdbwQ0LDp1v7j8xx92efCJlYFYb1sUkkBSPOlPmXgIARw8JQ0qOAOAA").unwrap();
assert_eq!(deobf_sig, exp_sig, "js: {js_hash}");
for (js_hash, exp_sig) in cases {
tracing::info!("[{js_hash}] SIG_TEST");
let (js_url, js_path) = player_js_file(js_hash).await;
let player_js = std::fs::read_to_string(js_path).unwrap();
let deobf_data = DeobfData::extract_fns(&js_url, &player_js).unwrap();
let deobf = Deobfuscator::new(&deobf_data).unwrap();
let deobf_sig = deobf.deobfuscate_sig("2aq0aqSyOoJXtK73m-uME_jv7-pT15gOFC02RFkGMqWpzEICs69VdbwQ0LDp1v7j8xx92efCJlYFYb1sUkkBSPOlPmXgIARw8JQ0qOAOAA").unwrap();
assert_eq!(deobf_sig, exp_sig, "[{js_hash}]");
}
}
#[rstest]
#[case("7862ca1f", "X_LCxVDjAavgE5t", "yxJ1dM6iz5ogUg")]
#[case("9216d1f7", "SLp9F5bwjAdhE9F-", "gWnb9IK2DJ8Q1w")]
#[case("f8cb7a3b", "oBo2h5euWy6osrUt", "ivXHpm7qJjJN")]
#[case("2dfe380c", "oBo2h5euWy6osrUt", "3DIBbn3qdQ")]
#[case("f1ca6900", "cu3wyu6LQn2hse", "jvxetvmlI9AN9Q")]
#[case("8040e515", "wvOFaY-yjgDuIEg5", "HkfBFDHmgw4rsw")]
#[case("e06dea74", "AiuodmaDDYw8d3y4bf", "ankd8eza2T6Qmw")]
#[case("5dd88d1d", "kSxKFLeqzv_ZyHSAt", "n8gS8oRlHOxPFA")]
#[case("324f67b9", "xdftNy7dh9QGnhW", "22qLGxrmX8F1rA")]
#[case("4c3f79c5", "TDCstCG66tEAO5pR9o", "dbxNtZ14c-yWyw")]
#[case("c81bbb4a", "gre3EcLurNY2vqp94", "Z9DfGxWP115WTg")]
#[case("1f7d5369", "batNX7sYqIJdkJ", "IhOkL_zxbkOZBw")]
#[case("009f1d77", "5dwFHw8aFWQUQtffRq", "audescmLUzI3jw")]
#[case("dc0c6770", "5EHDMgYLV6HPGk_Mu-kk", "n9lUJLHbxUI0GQ")]
#[case("113ca41c", "cgYl-tlYkhjT7A", "hI7BBr2zUgcmMg")]
#[case("c57c113c", "M92UUMHa8PdvPd3wyM", "3hPqLJsiNZx7yA")]
#[case("5a3b6271", "B2j7f_UPT4rfje85Lu_e", "m5DmNymaGQ5RdQ")]
#[case("7a062b77", "NRcE3y3mVtm_cV-W", "VbsCYUATvqlt5w")]
#[case("dac945fd", "o8BkRxXhuYsBCWi6RplPdP", "3Lx32v_hmzTm6A")]
#[case("6f20102c", "lE8DhoDmKqnmJJ", "pJTTX6XyJP2BYw")]
#[case("cfa9e7cb", "aCi3iElgd2kq0bxVbQ", "QX1y8jGb2IbZ0w")]
#[case("8c7583ff", "1wWCVpRR96eAmMI87L", "KSkWAVv1ZQxC3A")]
#[case("b7910ca8", "_hXMCwMt9qE310D", "LoZMgkkofRMCZQ")]
#[case("590f65a6", "1tm7-g_A9zsI8_Lay_", "xI4Vem4Put_rOg")]
#[case("b22ef6e7", "b6HcntHGkvBLk_FRf", "kNPW6A7FyP2l8A")]
#[case("3400486c", "lL46g3XifCKUZn1Xfw", "z767lhet6V2Skl")]
#[case("20dfca59", "-fLCxedkAk4LUTK2", "O8kfRq1y1eyHGw")]
#[case("b12cc44b", "keLa5R2U00sR9SQK", "N1OGyujjEwMnLw")]
#[case("3bb1f723", "gK15nzVyaXE9RsMP3z", "ZFFWFLPWx9DEgQ")]
#[case("2f1832d2", "YWt1qdbe8SAfkoPHW5d", "RrRjWQOJmBiP")]
#[case("19d2ae9d", "YWt1qdbe8SAfkoPHW5d", "CS6dVTYzpZrAZ5TD")]
#[tokio::test]
#[traced_test]
async fn nsig_tests(#[case] js_hash: &str, #[case] nsig_in: &str, #[case] expect: &str) {
let (js_url, js_path) = player_js_file(js_hash).await;
let player_js = std::fs::read_to_string(js_path).unwrap();
let deobf_data = DeobfData::extract_fns(&js_url, &player_js).unwrap();
let deobf = Deobfuscator::new(&deobf_data).unwrap();
async fn nsig_tests() {
let cases = [
("7862ca1f", "X_LCxVDjAavgE5t", "yxJ1dM6iz5ogUg"),
("9216d1f7", "SLp9F5bwjAdhE9F-", "gWnb9IK2DJ8Q1w"),
("f8cb7a3b", "oBo2h5euWy6osrUt", "ivXHpm7qJjJN"),
("2dfe380c", "oBo2h5euWy6osrUt", "3DIBbn3qdQ"),
("f1ca6900", "cu3wyu6LQn2hse", "jvxetvmlI9AN9Q"),
("8040e515", "wvOFaY-yjgDuIEg5", "HkfBFDHmgw4rsw"),
("e06dea74", "AiuodmaDDYw8d3y4bf", "ankd8eza2T6Qmw"),
("5dd88d1d", "kSxKFLeqzv_ZyHSAt", "n8gS8oRlHOxPFA"),
("324f67b9", "xdftNy7dh9QGnhW", "22qLGxrmX8F1rA"),
("4c3f79c5", "TDCstCG66tEAO5pR9o", "dbxNtZ14c-yWyw"),
("c81bbb4a", "gre3EcLurNY2vqp94", "Z9DfGxWP115WTg"),
("1f7d5369", "batNX7sYqIJdkJ", "IhOkL_zxbkOZBw"),
("009f1d77", "5dwFHw8aFWQUQtffRq", "audescmLUzI3jw"),
("dc0c6770", "5EHDMgYLV6HPGk_Mu-kk", "n9lUJLHbxUI0GQ"),
("113ca41c", "cgYl-tlYkhjT7A", "hI7BBr2zUgcmMg"),
("c57c113c", "M92UUMHa8PdvPd3wyM", "3hPqLJsiNZx7yA"),
("5a3b6271", "B2j7f_UPT4rfje85Lu_e", "m5DmNymaGQ5RdQ"),
("7a062b77", "NRcE3y3mVtm_cV-W", "VbsCYUATvqlt5w"),
("dac945fd", "o8BkRxXhuYsBCWi6RplPdP", "3Lx32v_hmzTm6A"),
("6f20102c", "lE8DhoDmKqnmJJ", "pJTTX6XyJP2BYw"),
("cfa9e7cb", "aCi3iElgd2kq0bxVbQ", "QX1y8jGb2IbZ0w"),
("8c7583ff", "1wWCVpRR96eAmMI87L", "KSkWAVv1ZQxC3A"),
("b7910ca8", "_hXMCwMt9qE310D", "LoZMgkkofRMCZQ"),
("590f65a6", "1tm7-g_A9zsI8_Lay_", "xI4Vem4Put_rOg"),
("b22ef6e7", "b6HcntHGkvBLk_FRf", "kNPW6A7FyP2l8A"),
("3400486c", "lL46g3XifCKUZn1Xfw", "z767lhet6V2Skl"),
("20dfca59", "-fLCxedkAk4LUTK2", "O8kfRq1y1eyHGw"),
("b12cc44b", "keLa5R2U00sR9SQK", "N1OGyujjEwMnLw"),
("3bb1f723", "gK15nzVyaXE9RsMP3z", "ZFFWFLPWx9DEgQ"),
("2f1832d2", "YWt1qdbe8SAfkoPHW5d", "RrRjWQOJmBiP"),
("19d2ae9d", "YWt1qdbe8SAfkoPHW5d", "CS6dVTYzpZrAZ5TD"),
("e7567ecf", "Sy4aDGc0VpYRR9ew_", "5UPOT1VhoZxNLQ"),
("d50f54ef", "Ha7507LzRmH3Utygtj", "XFTb2HoeOE5MHg"),
("074a8365", "Ha7507LzRmH3Utygtj", "ufTsrE0IVYrkl8v"),
("643afba4", "N5uAlLqm0eg1GyHO", "dCBQOejdq5s-ww"),
("69f581a5", "-qIP447rVlTTwaZjY", "KNcGOksBAvwqQg"),
("643afba4", "ir9-V6cdbCiyKxhr", "2PL7ZDYAALMfmA"),
];
let deobf_nsig = deobf.deobfuscate_nsig(nsig_in).unwrap();
assert_eq!(deobf_nsig, expect, "js: {js_hash}");
for (js_hash, nsig_in, exp_nsig) in cases {
tracing::info!("[{js_hash}] NSIG_TEST");
let (js_url, js_path) = player_js_file(js_hash).await;
let player_js = std::fs::read_to_string(js_path).unwrap();
let deobf_data = DeobfData::extract_fns(&js_url, &player_js).unwrap();
let deobf = Deobfuscator::new(&deobf_data).unwrap();
let deobf_nsig = deobf.deobfuscate_nsig(nsig_in).unwrap();
assert_eq!(deobf_nsig, exp_nsig, "[{js_hash}]");
}
}
#[tokio::test]

View file

@ -151,6 +151,8 @@ pub enum AuthError {
}
pub(crate) mod internal {
use std::borrow::Cow;
use super::{Error, ExtractionError};
/// Error that occurred during the initialization
@ -168,7 +170,7 @@ pub(crate) mod internal {
Extraction(&'static str),
/// Unspecified error
#[error("error: {0}")]
Other(&'static str),
Other(Cow<'static, str>),
}
impl From<DeobfError> for Error {