commit 28b28f4472fdae472c44f0b0620f34fe08f26d33 Author: Almaz Date: Tue Aug 6 13:53:16 2019 +0300 initial diff --git a/COPYING.lib b/COPYING.lib new file mode 100644 index 0000000..3b20440 --- /dev/null +++ b/COPYING.lib @@ -0,0 +1,458 @@ + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. It also counts + as the successor of the GNU Library Public License, version 2, hence + the version number 2.1.] + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * You may contact the author of Snoopy by e-mail at: + * monte@ohrt.com + * + * The latest version of Snoopy can be obtained from: + * http://snoopy.sourceforge.net/ + *************************************************/ +class Snoopy +{ + /**** Public variables ****/ + + /* user definable vars */ + + var $scheme = 'http'; // http or https + var $host = "www.php.net"; // host name we are connecting to + var $port = 80; // port we are connecting to + var $proxy_host = ""; // proxy host to use + var $proxy_port = ""; // proxy port to use + var $proxy_user = ""; // proxy user to use + var $proxy_pass = ""; // proxy password to use + + var $agent = "Snoopy v2.0.0"; // agent we masquerade as + var $referer = ""; // referer info to pass + var $cookies = []; // array of cookies to pass + // $cookies["username"]="joe"; + var $rawheaders = []; // array of raw headers to send + // $rawheaders["Content-type"]="text/html"; + + var $maxredirs = 5; // http redirection depth maximum. 0 = disallow + var $lastredirectaddr = ""; // contains address of last redirected address + var $offsiteok = true; // allows redirection off-site + var $maxframes = 0; // frame content depth maximum. 0 = disallow + var $expandlinks = true; // expand links to fully qualified URLs. + // this only applies to fetchlinks() + // submitlinks(), and submittext() + var $passcookies = true; // pass set cookies back through redirects + // NOTE: this currently does not respect + // dates, domains or paths. + + var $user = ""; // user for http authentication + var $pass = ""; // password for http authentication + + // http accept types + var $accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*"; + + var $results = ""; // where the content is put + + var $error = ""; // error messages sent here + var $response_code = ""; // response code returned from server + var $headers = []; // headers returned from server sent here + var $maxlength = 500000; // max return data length (body) + var $read_timeout = 0; // timeout on read operations, in seconds + // supported only since PHP 4 Beta 4 + // set to 0 to disallow timeouts + var $timed_out = false; // if a read operation timed out + var $status = 0; // http request status + + var $temp_dir = "/tmp"; // temporary directory that the webserver + // has permission to write to. + // under Windows, this should be C:\temp + + var $curl_path = false; + // deprecated, snoopy no longer uses curl for https requests, + // but instead requires the openssl extension. + + // send Accept-encoding: gzip? + var $use_gzip = true; + + // file or directory with CA certificates to verify remote host with + var $cafile; + var $capath; + + /**** Private variables ****/ + + var $_maxlinelen = 4096; // max line length (headers) + + var $_httpmethod = "GET"; // default http request method + var $_httpversion = "HTTP/1.0"; // default http request version + var $_submit_method = "POST"; // default submit method + var $_submit_type = "application/x-www-form-urlencoded"; // default submit type + var $_mime_boundary = ""; // MIME boundary for multipart/form-data submit type + var $_redirectaddr = false; // will be set if page fetched is a redirect + var $_redirectdepth = 0; // increments on an http redirect + var $_frameurls = []; // frame src urls + var $_framedepth = 0; // increments on frame depth + + var $_isproxy = false; // set if using a proxy server + var $_fp_timeout = 30; // timeout for socket connection + + /*======================================================================*\ + Function: fetch + Purpose: fetch the contents of a web page + (and possibly other protocols in the + future like ftp, nntp, gopher, etc.) + Input: $URI the location of the page to fetch + Output: $this->results the output text from the fetch + \*======================================================================*/ + + function fetch ($URI) + { + + $URI_PARTS = parse_url($URI); + if (!empty($URI_PARTS["user"])) + { + $this->user = $URI_PARTS["user"]; + } + if (!empty($URI_PARTS["pass"])) + { + $this->pass = $URI_PARTS["pass"]; + } + if (empty($URI_PARTS["query"])) + { + $URI_PARTS["query"] = ''; + } + if (empty($URI_PARTS["path"])) + { + $URI_PARTS["path"] = ''; + } + + $fp = null; + + switch (strtolower($URI_PARTS["scheme"])) + { + case "https": + if (!extension_loaded('openssl')) + { + trigger_error("openssl extension required for HTTPS", E_USER_ERROR); + exit; + } + $this->port = 443; + case "http": + $this->scheme = strtolower($URI_PARTS["scheme"]); + $this->host = $URI_PARTS["host"]; + if (!empty($URI_PARTS["port"])) + { + $this->port = $URI_PARTS["port"]; + } + if ($this->_connect($fp)) + { + if ($this->_isproxy) + { + // using proxy, send entire URI + $this->_httprequest($URI, $fp, $URI, $this->_httpmethod); + } + else + { + $path = $URI_PARTS["path"] . ($URI_PARTS["query"] ? "?" . $URI_PARTS["query"] : ""); + // no proxy, send only the path + $this->_httprequest($path, $fp, $URI, $this->_httpmethod); + } + + $this->_disconnect($fp); + + if ($this->_redirectaddr) + { + /* url was redirected, check if we've hit the max depth */ + if ($this->maxredirs > $this->_redirectdepth) + { + // only follow redirect if it's on this site, or offsiteok is true + if (preg_match("|^https?://" . preg_quote($this->host) . "|i", $this->_redirectaddr) || $this->offsiteok) + { + /* follow the redirect */ + $this->_redirectdepth++; + $this->lastredirectaddr = $this->_redirectaddr; + $this->fetch($this->_redirectaddr); + } + } + } + + if ($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0) + { + $frameurls = $this->_frameurls; + $this->_frameurls = []; + + while (list(, $frameurl) = each($frameurls)) + { + if ($this->_framedepth < $this->maxframes) + { + $this->fetch($frameurl); + $this->_framedepth++; + } + else + { + break; + } + } + } + } + else + { + return false; + } + + return $this; + break; + default: + // not a valid protocol + $this->error = 'Invalid protocol "' . $URI_PARTS["scheme"] . '"\n'; + + return false; + break; + } + + return $this; + } + + /*======================================================================*\ + Function: submit + Purpose: submit an http(s) form + Input: $URI the location to post the data + $formvars the formvars to use. + format: $formvars["var"] = "val"; + $formfiles an array of files to submit + format: $formfiles["var"] = "/dir/filename.ext"; + Output: $this->results the text output from the post + \*======================================================================*/ + + function submit ($URI, $formvars = "", $formfiles = "") + { + unset($postdata); + + $postdata = $this->_prepare_post_body($formvars, $formfiles); + + $URI_PARTS = parse_url($URI); + if (!empty($URI_PARTS["user"])) + { + $this->user = $URI_PARTS["user"]; + } + if (!empty($URI_PARTS["pass"])) + { + $this->pass = $URI_PARTS["pass"]; + } + if (empty($URI_PARTS["query"])) + { + $URI_PARTS["query"] = ''; + } + if (empty($URI_PARTS["path"])) + { + $URI_PARTS["path"] = ''; + } + + switch (strtolower($URI_PARTS["scheme"])) + { + case "https": + if (!extension_loaded('openssl')) + { + trigger_error("openssl extension required for HTTPS", E_USER_ERROR); + exit; + } + $this->port = 443; + case "http": + $this->scheme = strtolower($URI_PARTS["scheme"]); + $this->host = $URI_PARTS["host"]; + if (!empty($URI_PARTS["port"])) + { + $this->port = $URI_PARTS["port"]; + } + if ($this->_connect($fp)) + { + if ($this->_isproxy) + { + // using proxy, send entire URI + $this->_httprequest($URI, $fp, $URI, $this->_submit_method, $this->_submit_type, $postdata); + } + else + { + $path = $URI_PARTS["path"] . ($URI_PARTS["query"] ? "?" . $URI_PARTS["query"] : ""); + // no proxy, send only the path + $this->_httprequest($path, $fp, $URI, $this->_submit_method, $this->_submit_type, $postdata); + } + + $this->_disconnect($fp); + + if ($this->_redirectaddr) + { + /* url was redirected, check if we've hit the max depth */ + if ($this->maxredirs > $this->_redirectdepth) + { + if (!preg_match("|^" . $URI_PARTS["scheme"] . "://|", $this->_redirectaddr)) + { + $this->_redirectaddr = $this->_expandlinks($this->_redirectaddr, $URI_PARTS["scheme"] . "://" . $URI_PARTS["host"]); + } + + // only follow redirect if it's on this site, or offsiteok is true + if (preg_match("|^https?://" . preg_quote($this->host) . "|i", $this->_redirectaddr) || $this->offsiteok) + { + /* follow the redirect */ + $this->_redirectdepth++; + $this->lastredirectaddr = $this->_redirectaddr; + if (strpos($this->_redirectaddr, "?") > 0) + { + $this->fetch($this->_redirectaddr); + } // the redirect has changed the request method from post to get + else + { + $this->submit($this->_redirectaddr, $formvars, $formfiles); + } + } + } + } + + if ($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0) + { + $frameurls = $this->_frameurls; + $this->_frameurls = []; + + while (list(, $frameurl) = each($frameurls)) + { + if ($this->_framedepth < $this->maxframes) + { + $this->fetch($frameurl); + $this->_framedepth++; + } + else + { + break; + } + } + } + + } + else + { + return false; + } + + return $this; + break; + default: + // not a valid protocol + $this->error = 'Invalid protocol "' . $URI_PARTS["scheme"] . '"\n'; + + return false; + break; + } + + return $this; + } + + /*======================================================================*\ + Function: fetchlinks + Purpose: fetch the links from a web page + Input: $URI where you are fetching from + Output: $this->results an array of the URLs + \*======================================================================*/ + + function fetchlinks ($URI) + { + if ($this->fetch($URI) !== false) + { + if ($this->lastredirectaddr) + { + $URI = $this->lastredirectaddr; + } + if (is_array($this->results)) + { + for ($x = 0; $x < count($this->results); $x++) + { + $this->results[$x] = $this->_striplinks($this->results[$x]); + } + } + else + { + $this->results = $this->_striplinks($this->results); + } + + if ($this->expandlinks) + { + $this->results = $this->_expandlinks($this->results, $URI); + } + + return $this; + } + else + { + return false; + } + } + + /*======================================================================*\ + Function: fetchform + Purpose: fetch the form elements from a web page + Input: $URI where you are fetching from + Output: $this->results the resulting html form + \*======================================================================*/ + + function fetchform ($URI) + { + + if ($this->fetch($URI) !== false) + { + + if (is_array($this->results)) + { + for ($x = 0; $x < count($this->results); $x++) + { + $this->results[$x] = $this->_stripform($this->results[$x]); + } + } + else + { + $this->results = $this->_stripform($this->results); + } + + return $this; + } + else + { + return false; + } + } + + + /*======================================================================*\ + Function: fetchtext + Purpose: fetch the text from a web page, stripping the links + Input: $URI where you are fetching from + Output: $this->results the text from the web page + \*======================================================================*/ + + function fetchtext ($URI) + { + if ($this->fetch($URI) !== false) + { + if (is_array($this->results)) + { + for ($x = 0; $x < count($this->results); $x++) + { + $this->results[$x] = $this->_striptext($this->results[$x]); + } + } + else + { + $this->results = $this->_striptext($this->results); + } + + return $this; + } + else + { + return false; + } + } + + /*======================================================================*\ + Function: submitlinks + Purpose: grab links from a form submission + Input: $URI where you are submitting from + Output: $this->results an array of the links from the post + \*======================================================================*/ + + function submitlinks ($URI, $formvars = "", $formfiles = "") + { + if ($this->submit($URI, $formvars, $formfiles) !== false) + { + if ($this->lastredirectaddr) + { + $URI = $this->lastredirectaddr; + } + if (is_array($this->results)) + { + for ($x = 0; $x < count($this->results); $x++) + { + $this->results[$x] = $this->_striplinks($this->results[$x]); + if ($this->expandlinks) + { + $this->results[$x] = $this->_expandlinks($this->results[$x], $URI); + } + } + } + else + { + $this->results = $this->_striplinks($this->results); + if ($this->expandlinks) + { + $this->results = $this->_expandlinks($this->results, $URI); + } + } + + return $this; + } + else + { + return false; + } + } + + /*======================================================================*\ + Function: submittext + Purpose: grab text from a form submission + Input: $URI where you are submitting from + Output: $this->results the text from the web page + \*======================================================================*/ + + function submittext ($URI, $formvars = "", $formfiles = "") + { + if ($this->submit($URI, $formvars, $formfiles) !== false) + { + if ($this->lastredirectaddr) + { + $URI = $this->lastredirectaddr; + } + if (is_array($this->results)) + { + for ($x = 0; $x < count($this->results); $x++) + { + $this->results[$x] = $this->_striptext($this->results[$x]); + if ($this->expandlinks) + { + $this->results[$x] = $this->_expandlinks($this->results[$x], $URI); + } + } + } + else + { + $this->results = $this->_striptext($this->results); + if ($this->expandlinks) + { + $this->results = $this->_expandlinks($this->results, $URI); + } + } + + return $this; + } + else + { + return false; + } + } + + + /*======================================================================*\ + Function: set_submit_multipart + Purpose: Set the form submission content type to + multipart/form-data + \*======================================================================*/ + function set_submit_multipart () + { + $this->_submit_type = "multipart/form-data"; + + return $this; + } + + + /*======================================================================*\ + Function: set_submit_normal + Purpose: Set the form submission content type to + application/x-www-form-urlencoded + \*======================================================================*/ + function set_submit_normal () + { + $this->_submit_type = "application/x-www-form-urlencoded"; + + return $this; + } + + + + + /*======================================================================*\ + Private functions + \*======================================================================*/ + + + /*======================================================================*\ + Function: _striplinks + Purpose: strip the hyperlinks from an html document + Input: $document document to strip. + Output: $match an array of the links + \*======================================================================*/ + + function _striplinks ($document) + { + preg_match_all("'<\s*a\s.*?href\s*=\s* # find ]+)) # if quote found, match up to next matching + # quote, otherwise match up to next space + 'isx", $document, $links); + + + // catenate the non-empty matches from the conditional subpattern + + while (list($key, $val) = each($links[2])) + { + if (!empty($val)) + { + $match[] = $val; + } + } + + while (list($key, $val) = each($links[3])) + { + if (!empty($val)) + { + $match[] = $val; + } + } + + // return the links + return $match; + } + + /*======================================================================*\ + Function: _stripform + Purpose: strip the form elements from an html document + Input: $document document to strip. + Output: $match an array of the links + \*======================================================================*/ + + function _stripform ($document) + { + preg_match_all("'<\/?(FORM|INPUT|SELECT|TEXTAREA|(OPTION))[^<>]*>(?(2)(.*(?=<\/?(option|select)[^<>]*>[\r\n]*)|(?=[\r\n]*))|(?=[\r\n]*))'Usi", $document, $elements); + + // catenate the matches + $match = implode("\r\n", $elements[0]); + + // return the links + return $match; + } + + + /*======================================================================*\ + Function: _striptext + Purpose: strip the text from an html document + Input: $document document to strip. + Output: $text the resulting text + \*======================================================================*/ + + function _striptext ($document) + { + + // I didn't use preg eval (//e) since that is only available in PHP 4.0. + // so, list your entities one by one here. I included some of the + // more common ones. + + $search = [ + "']*?>.*?'si", // strip out javascript + "'<[\/\!]*?[^<>]*?>'si", // strip out html tags + "'([\r\n])[\s]+'", // strip out white space + "'&(quot|#34|#034|#x22);'i", // replace html entities + "'&(amp|#38|#038|#x26);'i", // added hexadecimal values + "'&(lt|#60|#060|#x3c);'i", + "'&(gt|#62|#062|#x3e);'i", + "'&(nbsp|#160|#xa0);'i", + "'&(iexcl|#161);'i", + "'&(cent|#162);'i", + "'&(pound|#163);'i", + "'&(copy|#169);'i", + "'&(reg|#174);'i", + "'&(deg|#176);'i", + "'&(#39|#039|#x27);'", + "'&(euro|#8364);'i", // europe + "'&a(uml|UML);'", // german + "'&o(uml|UML);'", + "'&u(uml|UML);'", + "'&A(uml|UML);'", + "'&O(uml|UML);'", + "'&U(uml|UML);'", + "'ß'i", + ]; + $replace = [ + "", + "", + "\\1", + "\"", + "&", + "<", + ">", + " ", + chr(161), + chr(162), + chr(163), + chr(169), + chr(174), + chr(176), + chr(39), + chr(128), + "ä", + "ö", + "ü", + "Ä", + "Ö", + "Ü", + "ß", + ]; + + $text = preg_replace($search, $replace, $document); + + return $text; + } + + /*======================================================================*\ + Function: _expandlinks + Purpose: expand each link into a fully qualified URL + Input: $links the links to qualify + $URI the full URI to get the base from + Output: $expandedLinks the expanded links + \*======================================================================*/ + + function _expandlinks ($links, $URI) + { + + preg_match("/^[^\?]+/", $URI, $match); + + $match = preg_replace("|/[^\/\.]+\.[^\/\.]+$|", "", $match[0]); + $match = preg_replace("|/$|", "", $match); + $match_part = parse_url($match); + $match_root = $match_part["scheme"] . "://" . $match_part["host"]; + + $search = [ + "|^http://" . preg_quote($this->host) . "|i", + "|^(\/)|i", + "|^(?!http://)(?!mailto:)|i", + "|/\./|", + "|/[^\/]+/\.\./|" + ]; + + $replace = [ + "", + $match_root . "/", + $match . "/", + "/", + "/" + ]; + + $expandedLinks = preg_replace($search, $replace, $links); + + return $expandedLinks; + } + + /*======================================================================*\ + Function: _httprequest + Purpose: go get the http(s) data from the server + Input: $url the url to fetch + $fp the current open file pointer + $URI the full URI + $body body contents to send if any (POST) + Output: + \*======================================================================*/ + + function _httprequest ($url, $fp, $URI, $http_method, $content_type = "", $body = "") + { + $cookie_headers = ''; + if ($this->passcookies && $this->_redirectaddr) + { + $this->setcookies(); + } + + $URI_PARTS = parse_url($URI); + if (empty($url)) + { + $url = "/"; + } + $headers = $http_method . " " . $url . " " . $this->_httpversion . "\r\n"; + if (!empty($this->host) && !isset($this->rawheaders['Host'])) + { + $headers .= "Host: " . $this->host; + if (!empty($this->port) && $this->port != '80') + { + $headers .= ":" . $this->port; + } + $headers .= "\r\n"; + } + if (!empty($this->agent)) + { + $headers .= "User-Agent: " . $this->agent . "\r\n"; + } + if (!empty($this->accept)) + { + $headers .= "Accept: " . $this->accept . "\r\n"; + } + if ($this->use_gzip) + { + // make sure PHP was built with --with-zlib + // and we can handle gzipp'ed data + if (function_exists('gzinflate')) + { + $headers .= "Accept-encoding: gzip\r\n"; + } + else + { + trigger_error("use_gzip is on, but PHP was built without zlib support." . " Requesting file(s) without gzip encoding.", E_USER_NOTICE); + } + } + if (!empty($this->referer)) + { + $headers .= "Referer: " . $this->referer . "\r\n"; + } + if (!empty($this->cookies)) + { + if (!is_array($this->cookies)) + { + $this->cookies = (array) $this->cookies; + } + + reset($this->cookies); + if (count($this->cookies) > 0) + { + $cookie_headers .= 'Cookie: '; + foreach ($this->cookies as $cookieKey => $cookieVal) + { + $cookie_headers .= $cookieKey . "=" . urlencode($cookieVal) . "; "; + } + $headers .= substr($cookie_headers, 0, -2) . "\r\n"; + } + } + if (!empty($this->rawheaders)) + { + if (!is_array($this->rawheaders)) + { + $this->rawheaders = (array) $this->rawheaders; + } + while (list($headerKey, $headerVal) = each($this->rawheaders)) + { + $headers .= $headerKey . ": " . $headerVal . "\r\n"; + } + } + if (!empty($content_type)) + { + $headers .= "Content-type: $content_type"; + if ($content_type == "multipart/form-data") + { + $headers .= "; boundary=" . $this->_mime_boundary; + } + $headers .= "\r\n"; + } + if (!empty($body)) + { + $headers .= "Content-length: " . strlen($body) . "\r\n"; + } + if (!empty($this->user) || !empty($this->pass)) + { + $headers .= "Authorization: Basic " . base64_encode($this->user . ":" . $this->pass) . "\r\n"; + } + + //add proxy auth headers + if (!empty($this->proxy_user)) + { + $headers .= 'Proxy-Authorization: ' . 'Basic ' . base64_encode($this->proxy_user . ':' . $this->proxy_pass) . "\r\n"; + } + + + $headers .= "\r\n"; + + // set the read timeout if needed + if ($this->read_timeout > 0) + { + socket_set_timeout($fp, $this->read_timeout); + } + $this->timed_out = false; + + fwrite($fp, $headers . $body, strlen($headers . $body)); + + $this->_redirectaddr = false; + unset($this->headers); + + // content was returned gzip encoded? + $is_gzipped = false; + + while ($currentHeader = fgets($fp, $this->_maxlinelen)) + { + if ($this->read_timeout > 0 && $this->_check_timeout($fp)) + { + $this->status = -100; + + return false; + } + + if ($currentHeader == "\r\n") + { + break; + } + + // if a header begins with Location: or URI:, set the redirect + if (preg_match("/^(Location:|URI:)/i", $currentHeader)) + { + // get URL portion of the redirect + preg_match("/^(Location:|URI:)[ ]+(.*)/i", chop($currentHeader), $matches); + // look for :// in the Location header to see if hostname is included + if (!preg_match("|\:\/\/|", $matches[2])) + { + // no host in the path, so prepend + $this->_redirectaddr = $URI_PARTS["scheme"] . "://" . $this->host . ":" . $this->port; + // eliminate double slash + if (!preg_match("|^/|", $matches[2])) + { + $this->_redirectaddr .= "/" . $matches[2]; + } + else + { + $this->_redirectaddr .= $matches[2]; + } + } + else + { + $this->_redirectaddr = $matches[2]; + } + } + + if (preg_match("|^HTTP/|", $currentHeader)) + { + if (preg_match("|^HTTP/[^\s]*\s(.*?)\s|", $currentHeader, $status)) + { + $this->status = $status[1]; + } + $this->response_code = $currentHeader; + } + + if (preg_match("/Content-Encoding: gzip/", $currentHeader)) + { + $is_gzipped = true; + } + + $this->headers[] = $currentHeader; + } + + $results = ''; + do + { + $_data = fread($fp, $this->maxlength); + if (strlen($_data) == 0) + { + break; + } + $results .= $_data; + } + while (true); + + // gunzip + if ($is_gzipped) + { + // per http://www.php.net/manual/en/function.gzencode.php + $results = substr($results, 10); + $results = gzinflate($results); + } + + if ($this->read_timeout > 0 && $this->_check_timeout($fp)) + { + $this->status = -100; + + return false; + } + + // check if there is a a redirect meta tag + + if (preg_match("']*?content[\s]*=[\s]*[\"\']?\d+;[\s]*URL[\s]*=[\s]*([^\"\']*?)[\"\']?>'i", $results, $match)) + { + $this->_redirectaddr = $this->_expandlinks($match[1], $URI); + } + + // have we hit our frame depth and is there frame src to fetch? + if (($this->_framedepth < $this->maxframes) && preg_match_all("']+)'i", $results, $match)) + { + $this->results[] = $results; + for ($x = 0; $x < count($match[1]); $x++) + { + $this->_frameurls[] = $this->_expandlinks($match[1][$x], $URI_PARTS["scheme"] . "://" . $this->host); + } + } // have we already fetched framed content? + elseif (is_array($this->results)) + { + $this->results[] = $results; + } + // no framed content + else + { + $this->results = $results; + } + + return $this; + } + + /*======================================================================*\ + Function: setcookies() + Purpose: set cookies for a redirection + \*======================================================================*/ + + function setcookies () + { + for ($x = 0; $x < count($this->headers); $x++) + { + if (preg_match('/^set-cookie:[\s]+([^=]+)=([^;]+)/i', $this->headers[$x], $match)) + { + $this->cookies[$match[1]] = urldecode($match[2]); + } + } + + return $this; + } + + + /*======================================================================*\ + Function: _check_timeout + Purpose: checks whether timeout has occurred + Input: $fp file pointer + \*======================================================================*/ + + function _check_timeout ($fp) + { + if ($this->read_timeout > 0) + { + $fp_status = socket_get_status($fp); + if ($fp_status["timed_out"]) + { + $this->timed_out = true; + + return true; + } + } + + return false; + } + + /*======================================================================*\ + Function: _connect + Purpose: make a socket connection + Input: $fp file pointer + \*======================================================================*/ + + function _connect (&$fp) + { + if (!empty($this->proxy_host) && !empty($this->proxy_port)) + { + $this->_isproxy = true; + + $host = $this->proxy_host; + $port = $this->proxy_port; + + if ($this->scheme == 'https') + { + trigger_error("HTTPS connections over proxy are currently not supported", E_USER_ERROR); + exit; + } + } + else + { + $host = $this->host; + $port = $this->port; + } + + $this->status = 0; + + $context_opts = []; + + if ($this->scheme == 'https') + { + // if cafile or capath is specified, enable certificate + // verification (including name checks) + if (isset($this->cafile) || isset($this->capath)) + { + $context_opts['ssl'] = [ + 'verify_peer' => true, + 'CN_match' => $this->host, + 'disable_compression' => true, + ]; + + if (isset($this->cafile)) + { + $context_opts['ssl']['cafile'] = $this->cafile; + } + if (isset($this->capath)) + { + $context_opts['ssl']['capath'] = $this->capath; + } + } + + $host = 'ssl://' . $host; + } + + $context = stream_context_create($context_opts); + + if (version_compare(PHP_VERSION, '5.0.0', '>')) + { + if ($this->scheme == 'http') + { + $host = "tcp://" . $host; + } + $fp = stream_socket_client("$host:$port", $errno, $errmsg, $this->_fp_timeout, STREAM_CLIENT_CONNECT, $context); + } + else + { + $fp = fsockopen($host, $port, $errno, $errstr, $this->_fp_timeout, $context); + } + + if ($fp) + { + // socket connection succeeded + return true; + } + else + { + // socket connection failed + $this->status = $errno; + switch ($errno) + { + case -3: + $this->error = "socket creation failed (-3)"; + case -4: + $this->error = "dns lookup failure (-4)"; + case -5: + $this->error = "connection refused or timed out (-5)"; + default: + $this->error = "connection failed (" . $errno . ")"; + } + + return false; + } + } + + /*======================================================================*\ + Function: _disconnect + Purpose: disconnect a socket connection + Input: $fp file pointer + \*======================================================================*/ + + function _disconnect ($fp) + { + return (fclose($fp)); + } + + + /*======================================================================*\ + Function: _prepare_post_body + Purpose: Prepare post body according to encoding type + Input: $formvars - form variables + $formfiles - form upload files + Output: post body + \*======================================================================*/ + + function _prepare_post_body ($formvars, $formfiles) + { + settype($formvars, "array"); + settype($formfiles, "array"); + $postdata = ''; + + if (count($formvars) == 0 && count($formfiles) == 0) + { + return; + } + + switch ($this->_submit_type) + { + case "application/x-www-form-urlencoded": + reset($formvars); + while (list($key, $val) = each($formvars)) + { + if (is_array($val) || is_object($val)) + { + while (list($cur_key, $cur_val) = each($val)) + { + $postdata .= urlencode($key) . "[]=" . urlencode($cur_val) . "&"; + } + } + else + { + $postdata .= urlencode($key) . "=" . urlencode($val) . "&"; + } + } + break; + + case "multipart/form-data": + $this->_mime_boundary = "Snoopy" . md5(uniqid(microtime())); + + reset($formvars); + while (list($key, $val) = each($formvars)) + { + if (is_array($val) || is_object($val)) + { + while (list($cur_key, $cur_val) = each($val)) + { + $postdata .= "--" . $this->_mime_boundary . "\r\n"; + $postdata .= "Content-Disposition: form-data; name=\"$key\[\]\"\r\n\r\n"; + $postdata .= "$cur_val\r\n"; + } + } + else + { + $postdata .= "--" . $this->_mime_boundary . "\r\n"; + $postdata .= "Content-Disposition: form-data; name=\"$key\"\r\n\r\n"; + $postdata .= "$val\r\n"; + } + } + + reset($formfiles); + while (list($field_name, $file_names) = each($formfiles)) + { + settype($file_names, "array"); + while (list(, $file_name) = each($file_names)) + { + if (!is_readable($file_name)) + { + continue; + } + + $fp = fopen($file_name, "r"); + $file_content = fread($fp, filesize($file_name)); + fclose($fp); + $base_name = basename($file_name); + + $postdata .= "--" . $this->_mime_boundary . "\r\n"; + $postdata .= "Content-Disposition: form-data; name=\"$field_name\"; filename=\"$base_name\"\r\n\r\n"; + $postdata .= "$file_content\r\n"; + } + } + $postdata .= "--" . $this->_mime_boundary . "--\r\n"; + break; + } + + return $postdata; + } + + /*======================================================================*\ + Function: getResults + Purpose: return the results of a request + Output: string results + \*======================================================================*/ + + function getResults () + { + return $this->results; + } +} + +?>