duckduckgo fix

This commit is contained in:
2026-07-04 17:16:35 -04:00
parent abdb041a64
commit 8328d93b17

View File

@@ -54,8 +54,8 @@ class ddg{
$headers =
["User-Agent: " . config::USER_AGENT,
"Accept: */*",
"Accept-Language: en-US,en;q=0.5",
"Accept-Encoding: gzip",
"Accept-Language: en-US,en;q=0.9",
"Accept-Encoding: gzip, deflate, br, zstd",
"Referer: https://duckduckgo.com/",
"DNT: 1",
"Sec-GPC: 1",
@@ -920,112 +920,6 @@ class ddg{
){
throw new Exception("DuckDuckGo returned a JSA challenge");
// get JSA initial token
if(
!preg_match(
'/let jsa *= *([0-9]+)/',
$js,
$jsa
)
){
$jsa = 0;
}else{
$jsa = (int)$jsa[1];
}
// get function bodies
preg_match_all(
'/let *([A-Za-z0-9]+) *= *function\(.*\) *{(.*)};/sU',
$js,
$functions
);
$parsed_functions = [];
for($i=0; $i<count($functions[0]); $i++){
$functions[2][$i] = trim($functions[2][$i]);
if(
preg_match(
'/return num *\* *([0-9]+)/i',
$functions[2][$i],
$num
)
){
$parsed_functions[$functions[1][$i]] = [
"type" => "multiplication",
"num" => (int)$num[1]
];
continue;
}
if(
preg_match(
'/innerHTML *= *`([^`]+)`/i',
$functions[2][$i],
$challenge
)
){
$challenge[1] =
preg_replace(
'/<\/(br)>/',
'<$1>',
$challenge[1]
);
$parsed_functions[$functions[1][$i]] = [
"type" => "challenge",
"text" => $challenge[1]
];
}
}
// get function call order
preg_match_all(
'/jsa *= *([A-Za-z0-9]+)\(jsa\)/i',
$js,
$call_order
);
foreach($call_order[1] as $order){
if(!isset($parsed_functions[$order])){
throw new Exception("JS challenge solve failure: DuckDuckGo called an unknown function");
}
if($parsed_functions[$order]["type"] == "multiplication"){
$jsa = $jsa * $parsed_functions[$order]["num"];
continue;
}
if($parsed_functions[$order]["type"] == "challenge"){
// @TODO get parsed length
//$parsed_functions[$order]["text"]
$jsa = $jsa + strlen($parsed_functions[$order]["text"]);
}
}
try{
$js = $this->get(
$proxy,
"https://links.duckduckgo.com" . $challenge_url[1] . $jsa,
[],
ddg::req_xhr
);
}catch(Exception $error){
throw new Exception("Failed to get challenged d.js");
}
}
//