greppr fix
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parent
ad535a1609
commit
319640cd77
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@ -16,49 +16,82 @@ class greppr{
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return [];
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}
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private function get($proxy, $url, $get = [], $cookie = false){
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private function get($proxy, $url, $get = [], $cookie = false, $post){
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$curlproc = curl_init();
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if($get !== []){
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$get = http_build_query($get);
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$url .= "?" . $get;
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}
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curl_setopt($curlproc, CURLOPT_URL, $url);
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curl_setopt($curlproc, CURLOPT_ENCODING, ""); // default encoding
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if($cookie === false){
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if($post === false){
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if($get !== []){
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$get = http_build_query($get);
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$url .= "?" . $get;
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}
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curl_setopt($curlproc, CURLOPT_HTTPHEADER,
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["User-Agent: " . config::USER_AGENT,
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"Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
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"Accept-Language: en-US,en;q=0.5",
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"Accept-Encoding: gzip",
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"DNT: 1",
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"Connection: keep-alive",
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"Upgrade-Insecure-Requests: 1",
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"Sec-Fetch-Dest: document",
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"Sec-Fetch-Mode: navigate",
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"Sec-Fetch-Site: none",
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"Sec-Fetch-User: ?1"]
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);
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if($cookie === false){
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curl_setopt($curlproc, CURLOPT_HTTPHEADER,
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["User-Agent: " . config::USER_AGENT,
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"Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
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"Accept-Language: en-US,en;q=0.5",
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"Accept-Encoding: gzip",
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"DNT: 1",
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"Connection: keep-alive",
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"Upgrade-Insecure-Requests: 1",
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"Sec-Fetch-Dest: document",
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"Sec-Fetch-Mode: navigate",
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"Sec-Fetch-Site: none",
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"Sec-Fetch-User: ?1"]
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);
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}else{
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curl_setopt($curlproc, CURLOPT_HTTPHEADER,
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["User-Agent: " . config::USER_AGENT,
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"Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
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"Accept-Language: en-US,en;q=0.5",
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"Accept-Encoding: gzip, deflate, br, zstd",
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"DNT: 1",
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"Sec-GPC: 1",
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"Connection: keep-alive",
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"Referer: https://greppr.org/search",
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"Cookie: PHPSESSID=$cookie",
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"Upgrade-Insecure-Requests: 1",
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"Sec-Fetch-Dest: document",
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"Sec-Fetch-Mode: navigate",
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"Sec-Fetch-Site: same-origin",
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"Sec-Fetch-User: ?1",
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"Priority: u=0, i"]
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);
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}
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}else{
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$get = http_build_query($get);
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curl_setopt($curlproc, CURLOPT_POST, true);
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curl_setopt($curlproc, CURLOPT_POSTFIELDS, $get);
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curl_setopt($curlproc, CURLOPT_HTTPHEADER,
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["User-Agent: " . config::USER_AGENT,
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"Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
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"Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
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"Accept-Language: en-US,en;q=0.5",
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"Accept-Encoding: gzip",
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"Cookie: PHPSESSID=" . $cookie,
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"Accept-Encoding: gzip, deflate, br, zstd",
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"Content-Type: application/x-www-form-urlencoded",
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"Content-Length: " . strlen($get),
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"Origin: https://greppr.org",
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"DNT: 1",
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"Sec-GPC: 1",
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"Connection: keep-alive",
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"Referer: https://greppr.org/",
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"Cookie: PHPSESSID=$cookie",
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"Upgrade-Insecure-Requests: 1",
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"Sec-Fetch-Dest: document",
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"Sec-Fetch-Mode: navigate",
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"Sec-Fetch-Site: none",
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"Sec-Fetch-User: ?1"]
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"Sec-Fetch-Site: same-origin",
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"Sec-Fetch-User: ?1",
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"Priority: u=0, i"]
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);
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}
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@ -113,7 +146,24 @@ class greppr{
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[$q, $proxy] = $this->backend->get($get["npt"], "web");
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$q = json_decode($q, true);
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$tokens = json_decode($q, true);
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//
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// Get paginated page
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//
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try{
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$html = $this->get(
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$proxy,
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"https://greppr.org" . $tokens["get"],
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[],
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$tokens["cookie"],
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false
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);
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}catch(Exception $error){
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throw new Exception("Failed to fetch search page");
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}
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}else{
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@ -124,88 +174,114 @@ class greppr{
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}
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$proxy = $this->backend->get_ip();
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}
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// get token
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// token[0] = static token that changes once a day
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// token[1] = dynamic token that changes on every request
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// token[1] = PHPSESSID cookie
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$tokens = apcu_fetch("greppr_token");
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if(
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$tokens === false ||
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$first_attempt === false // force token fetch
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){
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// we haven't gotten the token yet, get it
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//
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// get token
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//
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try{
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$response =
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$html =
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$this->get(
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$proxy,
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"https://greppr.org",
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[]
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[],
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false,
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false
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);
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}catch(Exception $error){
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throw new Exception("Failed to fetch search tokens");
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}
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$tokens = $this->parse_token($response);
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//
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// Parse token
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//
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$this->fuckhtml->load($html["data"]);
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$tokens = [];
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$inputs =
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$this->fuckhtml
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->getElementsByTagName(
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"input"
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);
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foreach($inputs as $input){
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if(!isset($input["attributes"]["name"])){
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continue;
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}
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switch($input["attributes"]["name"]){
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case "var1":
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case "var2":
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case "n":
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$tokens[$input["attributes"]["name"]] =
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$this->fuckhtml
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->getTextContent(
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$input["attributes"]["value"]
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);
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break;
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default:
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$tokens["req"] =
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$this->fuckhtml
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->getTextContent(
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$input["attributes"]["name"]
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);
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break;
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}
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}
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// get cookie
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preg_match(
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'/PHPSESSID=([^;]+)/',
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$html["headers"]["set-cookie"],
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$cookie
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);
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if(!isset($cookie[1])){
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// server sent an unexpected cookie
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throw new Exception("Got malformed cookie");
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}
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$tokens["cookie"] = $cookie[1];
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if($tokens === false){
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throw new Exception("Failed to grep search tokens");
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}
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}
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try{
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if($get["npt"]){
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//
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// Get initial search page
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//
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try{
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$html = $this->get(
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$proxy,
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"https://greppr.org/search",
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[
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"var1" => $tokens["var1"],
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"var2" => $tokens["var2"],
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$tokens["req"] => $search,
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"n" => $tokens["n"]
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],
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$tokens["cookie"],
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true
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);
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}catch(Exception $error){
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$params = [
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$tokens[0] => $q["q"],
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"s" => $q["s"],
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"l" => 30,
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"n" => $tokens[1]
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];
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}else{
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$params = [
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$tokens[0] => $search,
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"n" => $tokens[1]
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];
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throw new Exception("Failed to fetch search page");
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}
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$searchresults = $this->get(
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$proxy,
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"https://greppr.org/search",
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$params,
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$tokens[2]
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);
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}catch(Exception $error){
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throw new Exception("Failed to fetch search page");
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}
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if(strlen($searchresults["data"]) === 0){
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// redirected to main page, which means we got old token
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// generate a new one
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// ... unless we just tried to do that
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if($first_attempt === false){
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throw new Exception("Failed to get a new search token");
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}
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return $this->web($get, false);
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}
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//$html = file_get_contents("scraper/greppr.html");
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//$this->fuckhtml->load($html);
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$this->fuckhtml->load($html["data"]);
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// refresh the token with new data (this also triggers fuckhtml load)
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$this->parse_token($searchresults, $tokens[2]);
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// response object
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$out = [
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"status" => "ok",
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"spelling" => [
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@ -254,24 +330,16 @@ class greppr{
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if($break === true){
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parse_str(
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$this->fuckhtml
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->getTextContent(
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$a["attributes"]["href"]
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),
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$values
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);
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$values = array_values($values);
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$out["npt"] =
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$this->backend->store(
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json_encode(
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[
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"q" => $values[0],
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"s" => $values[1]
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]
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),
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json_encode([
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"get" =>
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$this->fuckhtml
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->getTextContent(
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$a["attributes"]["href"]
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),
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"cookie" => $tokens["cookie"]
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]),
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"web",
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$proxy
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);
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@ -360,74 +428,6 @@ class greppr{
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return $out;
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}
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private function parse_token($response, $cookie = false){
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$this->fuckhtml->load($response["data"]);
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$scripts =
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$this->fuckhtml
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->getElementsByTagName("script");
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$found = false;
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foreach($scripts as $script){
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preg_match(
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'/window\.location ?= ?\'\/search\?([^=]+).*&n=([0-9]+)/',
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$script["innerHTML"],
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$tokens
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);
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if(isset($tokens[1])){
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$found = true;
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break;
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}
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}
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if($found === false){
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return false;
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}
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$tokens = [
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$tokens[1],
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$tokens[2]
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];
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if($cookie !== false){
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// we already specified a cookie, so use the one we have already
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$tokens[] = $cookie;
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apcu_store("greppr_token", $tokens);
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return $tokens;
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}
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if(!isset($response["headers"]["set-cookie"])){
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// server didn't send a cookie
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return false;
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}
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// get cookie
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preg_match(
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'/PHPSESSID=([^;]+)/',
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$response["headers"]["set-cookie"],
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$cookie
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);
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if(!isset($cookie[1])){
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// server sent an unexpected cookie
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return false;
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}
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$tokens[] = $cookie[1];
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apcu_store("greppr_token", $tokens);
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return $tokens;
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}
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private function limitstrlen($text){
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return explode("\n", wordwrap($text, 300, "\n"))[0];
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