PHP微信扫描二维码登录网站代码示例
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扫描二维码登录对于现在的web应用来说，确实是个很炫酷的功能，安全性也可以保障，不少朋友可能觉得这是个很复杂的工作，其实不然，真正说来只有几个步骤而已。
原理
- PC浏览器展示一张二维码图片，该图片二维码值为一段绝对地址的url，大致如下：http://www.example.com/oauth/qrcode?key=key
- PC浏览器定期轮询 http://www.example.com/oauth/query，可能有的同学会问，怎么不用带上key？这里我们用session来保存key，所以链接中不用带上key，将这个key作为服务端的缓存key且值为空，如果该缓存值为空，证明没被扫描，继续轮询，如果已经被扫描，展示扫描结果。
- 手机微信扫描之后会直接访问http://www.example.com/oauth/qrcode?key=key，这里我们先把这个key保存的session中（这个session和2中的不同，一个是PC，一个是手机）。然后检测用户在手机端是否登录，如果已登录，则把用户信息存到2中的key缓存中，这时候前端查询的时候就会有值了。如果用户在手机未登录，则直接跳转微信登录，登陆成功之后再将用户信息设置到2中的key缓存
snoopy.class.php
<?php /************************************************* Snoopy - the PHP net client Author: Monte Ohrt <[email protected]> Copyright (c): 1999-2008 New Digital Group, all rights reserved Version: 1.2.4 * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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: [email protected] The latest version of Snoopy can be obtained from: http://snoopy.sourceforge.net/ *************************************************/ class Snoopy { /**** Public variables ****/ /* user definable vars */ 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 = "Mozilla/5.0"; // agent we masquerade as var $referer = ""; // referer info to pass var $cookies = array(); // array of cookies to pass // $cookies["username"]="joe"; var $rawheaders = array(); // 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 = "application/json, text/javascript, */*; q=0.01"; var $results = ""; // where the content is put var $error = ""; // error messages sent here var $response_code = ""; // response code returned from server var $headers = array(); // 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 = "/usr/local/bin/curl"; // Snoopy will use cURL for fetching // SSL content if a full system path to // the cURL binary is supplied here. // set to false if you do not have // cURL installed. See http://curl.haxx.se // for details on installing cURL. // Snoopy does *not* use the cURL // library functions built into php, // as these functions are not stable // as of this Snoopy release. /**** 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 = array(); // 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) { //preg_match("|^([^:]+)://([^:/]+)(:[\d]+)*(.*)|",$URI,$URI_PARTS); $URI_PARTS = parse_url($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 "http": $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 > $this->_redirectdepth) { // only follow redirect if it‘s on this site, or offsiteok is true if(preg_match("|^http://".preg_quote($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; $this->_frameurls = array(); while(list(,$frameurl) = each($frameurls)) { if($this->_framedepth < $this->maxframes) { $this->fetch($frameurl); $this->_framedepth++; } else break; } } } else { return false; } return true; break; case "https": if (!function_exists(‘curl_init‘)) { if(!$this->curl_path) return false; if(function_exists("is_executable")) if (!is_executable($this->curl_path)) return false; } $this->host = $URI_PARTS["host"]; if(!empty($URI_PARTS["port"])) $this->port = $URI_PARTS["port"]; if($this->_isproxy) { // using proxy, send entire URI $this->_httpsrequest($URI,$URI,$this->_httpmethod); } else { $path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : ""); // no proxy, send only the path $this->_httpsrequest($path, $URI, $this->_httpmethod); } if($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; $this->_frameurls = array(); while(list(,$frameurl) = each($frameurls)) { if($this->_framedepth < $this->maxframes) { $this->fetch($frameurl); $this->_framedepth++; } else break; } } return true; break; default: // not a valid protocol $this->error = ‘Invalid protocol "‘.$URI_PARTS["scheme"].‘"\n‘; return false; break; } return true; } /*======================================================================* Function: submit Purpose: submit an http 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 "http": $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("|^http://".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; $this->_frameurls = array(); while(list(,$frameurl) = each($frameurls)) { if($this->_framedepth < $this->maxframes) { $this->fetch($frameurl); $this->_framedepth++; } else break; } } } else { return false; } return true; break; case "https": if (!function_exists(‘curl_init‘)) { if(!$this->curl_path) return false; if(function_exists("is_executable")) if (!is_executable($this->curl_path)) return false; } $this->host = $URI_PARTS["host"]; if(!empty($URI_PARTS["port"])) $this->port = $URI_PARTS["port"]; if($this->_isproxy) { // using proxy, send entire URI $this->_httpsrequest($URI, $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 $this->_httpsrequest($path, $URI, $this->_submit_method, $this->_submit_type, $postdata); } if($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; $this->_frameurls = array(); while(list(,$frameurl) = each($frameurls)) { if($this->_framedepth < $this->maxframes) { $this->fetch($frameurl); $this->_framedepth++; } else break; } } return true; break; default: // not a valid protocol $this->error = ‘Invalid protocol "‘.$URI_PARTS["scheme"].‘"\n‘; return false; break; } return true; } /*======================================================================* 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)) { 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 true; } 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)) { 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 true; } 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)) { 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 true; } 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, $formfiles)) { if($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 true; } 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, $formfiles)) { if($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 true; } 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"; } /*======================================================================* 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"; } /*======================================================================* 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 <a href= ([\"\‘])? # find single or double quote (?(1) (.*?)\\1 | ([^\s\>]+)) # 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 = array("‘<script[^>]*?>.*?</script>‘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 = array( "", "", "\\1", "\"", "&", "<", ">", " ", chr(161), chr(162), chr(163), chr(169), chr(174), chr(176), chr(39), chr(128), "?", "?", "?", "?", "?", "?", "?", ); $text = preg_replace($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"]; $search = array( "|^http://".preg_quote($this->host)."|i", "|^(\/)|i", "|^(?!http://)(?!mailto:)|i", "|/\./|", "|/[^\/]+/\.\./|" ); $replace = array( "", $match_root."/", $match."/", "/", "/" ); $expandedLinks = preg_replace($search,$replace,$links); return $expandedLinks; } /*======================================================================* Function: _httprequest Purpose: go get the http 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->agent)) $headers .= "User-Agent: ".$this->agent."\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->accept)) $headers .= "Accept: ".$this->accept."\r\n"; 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); 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),$matches); // look for :// in the Location header to see if hostname is included if (!empty($matches)) { 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; } $this->headers[] = $currentHeader; } $results = ‘‘; do { $_data = fread($fp, $this->maxlength); if (strlen($_data) == 0) { break; } $results .= $_data; } while(true); if ($this->read_timeout > 0 && $this->_check_timeout($fp)) { $this->status=-100; return false; } // check if there is a a redirect meta tag if(preg_match("‘<meta[\s]*http-equiv[^>]*?content[\s]*=[\s]*[\"\‘]?\d+;[\s]*URL[\s]*=[\s]*([^\"\‘]*?)[\"\‘]?>‘i",$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 < $this->maxframes) && preg_match_all("‘<frame\s+.*src[\s]*=[\‘\"]?([^\‘\"\>]+)‘i",$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 true; } /*======================================================================* Function: _httpsrequest Purpose: go get the https data from the server using curl Input: $url the url to fetch $URI the full URI $body body contents to send if any (POST) Output: \*======================================================================*/ function _httpsrequest($url,$URI,$http_method,$content_type="",$body="") { if($this->passcookies && $this->_redirectaddr) $this->setcookies(); $headers = array(); $URI_PARTS = parse_url($URI); if(empty($url)) $url = "/"; // GET ... header not needed for curl //$headers[] = $http_method." ".$url." ".$this->_httpversion; if(!empty($this->agent)) $headers[] = "User-Agent: ".$this->agent; if(!empty($this->host)) if(!empty($this->port) && $this->port!=80) $headers[] = "Host: ".$this->host.":".$this->port; else $headers[] = "Host: ".$this->host; if(!empty($this->accept)) $headers[] = "Accept: ".$this->accept; if(!empty($this->referer)) $headers[] = "Referer: ".$this->referer; if(!empty($this->cookies)) { if(!is_array($this->cookies)) $this->cookies = (array)$this->cookies; reset($this->cookies); if ( count($this->cookies) > 0 ) { $cookie_str = ‘Cookie: ‘; foreach ( $this->cookies as $cookieKey => $cookieVal ) { $cookie_str .= $cookieKey."=".urlencode($cookieVal)."; "; } $headers[] = substr($cookie_str,0,-2); } } if(!empty($this->rawheaders)) { if(!is_array($this->rawheaders)) $this->rawheaders = (array)$this->rawheaders; while(list($headerKey,$headerVal) = each($this->rawheaders)) $headers[] = $headerKey.": ".$headerVal; } if(!empty($content_type)) { if ($content_type == "multipart/form-data") $headers[] = "Content-type: $content_type; boundary=".$this->_mime_boundary; else $headers[] = "Content-type: $content_type"; } if(!empty($body)) $headers[] = "Content-length: ".strlen($body); if(!empty($this->user) || !empty($this->pass)) $headers[] = "Authorization: BASIC ".base64_encode($this->user.":".$this->pass); if (function_exists(‘curl_init‘)) { $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $URI); curl_setopt($ch, CURLOPT_HEADER, true); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); curl_setopt($ch, CURLOPT_SSLVERSION,3); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); curl_setopt($ch, CURLOPT_TIMEOUT, $this->read_timeout); if(!empty($body)) { curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, $body); } $data = curl_exec($ch); if ($data === false) { $this->error = "Error: Curl error ".curl_error($ch); return false; } $parts = explode("\r\n\r\n",$data,2); $result_headers = explode("\r\n",$parts[0]); $results = $parts[1]; unset($parts); } else { for($curr_header = 0; $curr_header < count($headers); $curr_header++) { $safer_header = strtr( $headers[$curr_header], "\"", " " ); $cmdline_params .= " -H \"".$safer_header."\""; } if(!empty($body)) $cmdline_params .= " -d \"$body\""; if($this->read_timeout > 0) $cmdline_params .= " -m ".$this->read_timeout; $headerfile = tempnam($temp_dir, "sno"); exec($this->curl_path." -k -D \"$headerfile\"".$cmdline_params." \"".escapeshellcmd($URI)."\"",$results,$return); if($return) { $this->error = "Error: cURL could not retrieve the document, error $return."; return false; } $results = implode("\r\n",$results); $result_headers = file("$headerfile"); } $this->_redirectaddr = false; unset($this->headers); for($currentHeader = 0; $currentHeader < count($result_headers); $currentHeader++) { // if a header begins with Location: or URI:, set the redirect if(preg_match("/^(Location: |URI: )/i",$result_headers[$currentHeader])) { // get URL portion of the redirect preg_match("/^(Location: |URI:)\s+(.*)/",chop($result_headers[$currentHeader]),$matches); // look for :// in the Location header to see if hostname is included if (!empty($matches)) { if(!preg_match("|\:\/\/|",$matches[2])) { // no host in the path, so prepend $this->_redirectaddr = $URI_PARTS["scheme"]."://".$this->host; // eliminate double slash if(!preg_match("|^/|",$matches[2])) $this->_redirectaddr .= "/".$matches[2]; else $this->_redirectaddr .= $matches[2]; } else $this->_redirectaddr = $matches[2]; } } if(preg_match("|^HTTP/|",$result_headers[$currentHeader])) $this->response_code = $result_headers[$currentHeader]; $this->headers[] = $result_headers[$currentHeader]; } // check if there is a a redirect meta tag if(preg_match("‘<meta[\s]*http-equiv[^>]*?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 < $this->maxframes) && preg_match_all("‘<frame\s+.*src[\s]*=[\‘\"]?([^\‘\"\>]+)‘i",$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 = $results; if (isset($headerfile) && file_exists($headerfile)) unlink($headerfile); return true; } /*======================================================================* 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]); } } /*======================================================================* 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; } else { $host = $this->host; $port = $this->port; } $this->status = 0; if($fp = fsockopen( $host, $port, $errno, $errstr, $this->_fp_timeout )) { // 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($formfiles) == 0) return; if (is_string($formvars)) return $formvars; if((count($formvars) == 1) && isset($formvars[0])) return $formvars[0]; switch ($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": $this->_mime_boundary = "--------".md5(uniqid(microtime())); reset($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)) { $file_content = file_get_contents($file_name); if (!$file_content) continue; $base_name = basename($file_name); $postdata .= "--".$this->_mime_boundary."\r\n"; $postdata .= "Content-Disposition: form-data; name=\"$field_name\"; filename=\"$base_name\"\r\nContent-Type: image/jpeg\r\n\r\n"; $postdata .= "$file_content\r\n"; } } $postdata .= "--".$this->_mime_boundary."--\r\n"; break; } return $postdata; } }
请先下载 snoopy 类
<?php /** * 微信公众平台PHP-SDK * Wechatauth为非官方微信登陆API * 用户通过扫描网页提供的二维码实现登陆信息获取 * 主要实现如下功能: * get_login_code() 获取登陆授权码, 通过授权码才能获取二维码 * get_code_image($code=‘‘) 将上面获取的授权码转换为图片二维码 * verify_code() 鉴定是否登陆成功,返回200为最终授权成功. * get_login_cookie() 鉴定成功后调用此方法即可获取用户基本信息 * sendNews($account,$title,$summary,$content,$pic,$srcurl=‘‘) 向一个微信账户发送图文信息 * get_avatar($url) 获取用户头像图片数据 * @author dodge <[email protected]> * @link https://github.com/dodgepudding/wechat-php-sdk * @version 1.1 * */ include "snoopy.class.php"; class Wechatauth { private $cookie; private $_cookiename; private $_cookieexpired = 3600; private $_account = ‘test‘; private $_datapath = ‘./data/cookie_‘; private $debug; private $_logcallback; public $login_user; //当前登陆用户, 调用get_login_info后获取 public function __construct($options) { $this->_account = isset($options[‘account‘])?$options[‘account‘]:‘‘; $this->_datapath = isset($options[‘datapath‘])?$options[‘datapath‘]:$this->_datapath; $this->debug = isset($options[‘debug‘])?$options[‘debug‘]:false; $this->_logcallback = isset($options[‘logcallback‘])?$options[‘logcallback‘]:false; $this->_cookiename = $this->_datapath.$this->_account; $this->getCookie($this->_cookiename); } /** * 把cookie写入缓存 * @param string $filename 缓存文件名 * @param string $content 文件内容 * @return bool */ public function saveCookie($filename,$content){ return file_put_contents($filename,$content); } /** * 读取cookie缓存内容 * @param string $filename 缓存文件名 * @return string cookie */ public function getCookie($filename){ if (file_exists($filename)) { $mtime = filemtime($filename); if ($mtime<time()-$this->_cookieexpired) return false; $data = file_get_contents($filename); if ($data) $this->cookie = $data; } return $this->cookie; } /* * 删除cookie */ public function deleteCookie($filename) { $this->cookie = ‘‘; @unlink($filename); return true; } private function log($log){ if ($this->debug && function_exists($this->_logcallback)) { if (is_array($log)) $log = print_r($log,true); return call_user_func($this->_logcallback,$log); } } /** * 获取登陆二维码对应的授权码 */ public function get_login_code(){ if ($this->_logincode) return $this->_logincode; $t = time().strval(mt_rand(100,999)); $codeurl = ‘https://login.weixin.qq.com/jslogin?appid=wx782c26e4c19acffb&redirect_uri=https%3A%2F%2Fwx.qq.com%2Fcgi-bin%2Fmmwebwx-bin%2Fwebwxnewloginpage&fun=new&lang=zh_CN&_=‘.$t; $send_snoopy = new Snoopy; $send_snoopy->fetch($codeurl); $result = $send_snoopy->results; if ($result) { preg_match("/window.QRLogin.uuid\s+=\s+\"([^\"]+)\"/",$result,$matches); if(count($matches)>1) { $this->_logincode = $matches[1]; $_SESSION[‘login_step‘] = 0; return $this->_logincode; } } return $result; } /** * 通过授权码获取对应的二维码图片地址 * @param string $code * @return string image url */ public function get_code_image($code=‘‘){ if ($code==‘‘) $code = $this->_logincode; if (!$code) return false; return ‘http://login.weixin.qq.com/qrcode/‘.$this->_logincode.‘?t=webwx‘; } /** * 设置二维码对应的授权码 * @param string $code * @return class $this */ public function set_login_code($code) { $this->_logincode = $code; return $this; } /** * 二维码登陆验证 * * @return status: * >=400: invaild code; 408: not auth and wait, 400,401: not valid or expired * 201: just scaned but not confirm * 200: confirm then you can get user info */ public function verify_code() { if (!$this->_logincode) return false; $t = time().strval(mt_rand(100,999)); $url = ‘https://login.weixin.qq.com/cgi-bin/mmwebwx-bin/login?uuid=‘.$this->_logincode.‘&tip=1&_=‘.$t; $send_snoopy = new Snoopy; $send_snoopy->referer = "https://wx.qq.com/"; $send_snoopy->fetch($url); $result = $send_snoopy->results; $this->log(‘step1:‘.$result); if ($result) { preg_match("/window\.code=(\d+)/",$result,$matches); if(count($matches)>1) { $status = intval($matches[1]); if ($status==201) $_SESSION[‘login_step‘] = 1; if ($status==200) { preg_match("/ticket=([0-9a-z-_]+)&lang=zh_CN&scan=(\d+)/",$result,$matches); $this->log(‘step2:‘.print_r($matches,true)); if (count($matches)>1) { $ticket = $matches[1]; $scan = $matches[2]; $loginurl = ‘https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxnewloginpage?ticket=‘.$ticket.‘&lang=zh_CN&scan=‘.$scan.‘&fun=new‘; $send_snoopy = new Snoopy; $send_snoopy->referer = "https://wx.qq.com/"; $send_snoopy->fetch($loginurl); $this->log(‘step3:‘.print_r($send_snoopy->headers,true)); foreach ($send_snoopy->headers as $key => $value) { $value = trim($value); if(strpos($value,‘Set-Cookie: ‘) !== false){ $tmp = str_replace("Set-Cookie: ","",$value); $tmp = str_replace("Path=/","",$tmp); $tmp = str_replace("Domain=.qq.com; ","",$tmp); $cookie.=$tmp; } } $cookie .="Domain=.qq.com;"; $this->cookie = $cookie; $this->saveCookie($this->_cookiename,$this->cookie); } } return $status; } } return false; } /** * 获取登陆的cookie * * @param bool $is_array 是否以数值方式返回，默认否，返回字符串 * @return string|array */ public function get_login_cookie($is_array = false){ if (!$is_array) return $this->cookie; $c_arr = explode(‘;‘,$this->cookie); $cookie = array(); foreach($c_arr as $item) { $kitem = explode(‘=‘,trim($item)); if (count($kitem)>1) { $key = trim($kitem[0]); $val = trim($kitem[1]); if (!empty($val)) $cookie[$key] = $val; } } return $cookie; } /** * 授权登陆后获取用户登陆信息 */ public function get_login_info(){ if (!$this->cookie) return false; $t = time().strval(mt_rand(100,999)); $send_snoopy = new Snoopy; $submit = ‘https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxinit?r=‘.$t; $send_snoopy->rawheaders[‘Cookie‘]= $this->cookie; $send_snoopy->referer = "https://wx.qq.com/"; $send_snoopy->submit($submit,array()); $this->log(‘login_info:‘.$send_snoopy->results); $result = json_decode($send_snoopy->results,true); if ($result[‘BaseResponse‘][‘Ret‘]<0) return false; $this->_login_user = $result[‘User‘]; return $result; } /** * 获取头像 * @param string $url 传入从用户信息接口获取到的头像地址 */ public function get_avatar($url) { if (!$this->cookie) return false; if (strpos($url, ‘http‘)===false) { $url = ‘http://wx.qq.com‘.$url; } $send_snoopy = new Snoopy; $send_snoopy->rawheaders[‘Cookie‘]= $this->cookie; $send_snoopy->referer = "https://wx.qq.com/"; $send_snoopy->fetch($url); $result = $send_snoopy->results; if ($result) return $result; else return false; } /** * 登出当前登陆用户 */ public function logout(){ if (!$this->cookie) return false; preg_match("/wxuin=(\w+);/",$this->cookie,$matches); if (count($matches)>1) $uid = $matches[1]; preg_match("/wxsid=(\w+);/",$this->cookie,$matches); if (count($matches)>1) $sid = $matches[1]; $this->log(‘logout: uid=‘.$uid.‘;sid=‘.$sid); $send_snoopy = new Snoopy; $submit = ‘https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxlogout?redirect=1&type=1‘; $send_snoopy->rawheaders[‘Cookie‘]= $this->cookie; $send_snoopy->referer = "https://wx.qq.com/"; $send_snoopy->submit($submit,array(‘uin‘=>$uid,‘sid‘=>$sid)); $this->deleteCookie($this->_cookiename); return true; } }
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