From: Andrew Dolgov Date: Thu, 22 Jan 2009 13:33:02 +0000 (+0100) Subject: move magpie to lib/ X-Git-Tag: git2svn-syncpoint-master~63 X-Git-Url: https://git.wh0rd.org/?a=commitdiff_plain;h=816cdfb7ee28912908557e07741a2cd803252159;p=tt-rss.git move magpie to lib/ --- diff --git a/functions.php b/functions.php index f9ae442c..8f207cbd 100644 --- a/functions.php +++ b/functions.php @@ -103,8 +103,8 @@ define('MAGPIE_CACHE_AGE', 60*15); // 15 minutes require_once "lib/simplepie/simplepie.inc"; - require_once "magpierss/rss_fetch.inc"; - require_once 'magpierss/rss_utils.inc'; + require_once "lib/magpierss/rss_fetch.inc"; + require_once 'lib/magpierss/rss_utils.inc'; /** * Print a timestamped debug message. diff --git a/lib/magpierss/AUTHORS b/lib/magpierss/AUTHORS new file mode 100644 index 00000000..7d7f3f53 --- /dev/null +++ b/lib/magpierss/AUTHORS @@ -0,0 +1 @@ +kellan diff --git a/lib/magpierss/README b/lib/magpierss/README new file mode 100644 index 00000000..6af7edb0 --- /dev/null +++ b/lib/magpierss/README @@ -0,0 +1,48 @@ +NAME + + MagpieRSS - a simple RSS integration tool + +SYNOPSIS + + require_once(rss_fetch.inc); + $url = $_GET['url']; + $rss = fetch_rss( $url ); + + echo "Channel Title: " . $rss->channel['title'] . "

"; + echo "

"; + +DESCRIPTION + + MapieRSS is an XML-based RSS parser in PHP. It attempts to be "PHP-like", + and simple to use. + + Some features include: + + * supports RSS 0.9 - 1.0, with limited RSS 2.0 support + * supports namespaces, and modules, including mod_content and mod_event + * open minded [1] + * simple, functional interface, to object oriented backend parser + * automatic caching of parsed RSS objects makes its easy to integrate + * supports conditional GET with Last-Modified, and ETag + * uses constants for easy override of default behaviour + * heavily commented + + +1. By open minded I mean Magpie will accept any tag it finds in good faith that + it was supposed to be here. For strict validation, look elsewhere. + + +GETTING STARTED + + + +COPYRIGHT: + Copyright(c) 2002 kellan@protest.net. All rights reserved. + This software is released under the GNU General Public License. + Please read the disclaimer at the top of the Snoopy.class.inc file. diff --git a/lib/magpierss/extlib/Snoopy.class.inc b/lib/magpierss/extlib/Snoopy.class.inc new file mode 100644 index 00000000..17e6a952 --- /dev/null +++ b/lib/magpierss/extlib/Snoopy.class.inc @@ -0,0 +1,1001 @@ + +Copyright (c): 1999-2000 ispi, all rights reserved +Version: 1.0 (plus - see SJM comments below) + + * 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: +monte@ispi.net + +Or, write to: +Monte Ohrt +CTO, ispi +237 S. 70th suite 220 +Lincoln, NE 68510 + +The latest version of Snoopy can be obtained from: +http://snoopy.sourceforge.com + + + +SJM - alpha-grade changes based on the version of Snoopy released with MagpieRSS 0.7 + +comments to steve@minutillo.com + +Two additions: + +1) If this is PHP 4.3 or greater, and 'openssl' is available, + use the PHP built in SSL support for "https" instead of calling curl externally. + Use of external curl can still be forced by setting $use_curl = true. + + ref: http://us2.php.net/fsockopen + +2) HTTP Digest Authentication. If you set a username and password, basic auth + will be tried first. If that fails, and the server sends back an + WWW-Authenticate: Digest header, the request will be retried with the appropriate + digest response. Only qop=auth is supported, with MD5 as the algorithm. + I realize that sending basic auth first, and then following up with a digest + challenge-response kind of defeats the purpose in terms of security. + + ref: http://www.faqs.org/rfcs/rfc2617.html + +*************************************************/ + +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 $agent = "Snoopy v1.0"; // 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() + // or submitlinks() + 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 = 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 $curl_path = "/usr/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. + + // SJM - always use curl for HTTPS requests? + var $use_curl = false; + + + // send Accept-encoding: gzip? + var $use_gzip = true; + + /**** Private variables ****/ + + var $_maxlinelen = 4096; // max line length (headers) + + var $_scheme = "http"; // default scheme + 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 $_trieddigest = false; // have we tried Digest auth yet? + 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"])) + $this->user = urldecode($URI_PARTS["user"]); + if (!empty($URI_PARTS["pass"])) + $this->pass = urldecode($URI_PARTS["pass"]); + + $this->_scheme = $URI_PARTS["scheme"]; + + switch($URI_PARTS["scheme"]) + { + case "http": + case "https": + break; + + default: + // not a valid protocol + $this->error = 'Invalid protocol "'.$URI_PARTS["scheme"].'"\n'; + return false; + } + + if($URI_PARTS["scheme"] == "https") + { + // SJM - if they really want curl, or it isn't PHP 4.3 yet, or openssl extension isn't loaded + + if($use_curl || !function_exists('file_get_contents') || !extension_loaded('openssl')) + { + if(!$this->curl_path || (!is_executable($this->curl_path))) { + $this->error = "Bad curl ($this->curl_path), can't fetch HTTPS \n"; + 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 + $this->_curlrequest($URI,$URI,$this->_httpmethod); + } + else + { + $path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : ""); + // no proxy, send only the path + $this->_curlrequest($path, $URI, $this->_httpmethod); + } + + if($this->_redirectaddr) + { + /* url was redirected, check if we've hit the max depth */ + if($this->maxredirs > $this->_redirectdepth) + { + // only follow redirect if it's on this site, or offsiteok is true + if(preg_match("|^http://".preg_quote($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; + } + } + return true; + } + } + + // SJM - else drop through and treat https as http + + $this->host = $URI_PARTS["host"]; + if(!empty($URI_PARTS["port"])) + $this->port = $URI_PARTS["port"]; + + // SJM - if it's https, default the port to 443 + if($URI_PARTS["scheme"] == "https") + { + if(empty($URI_PARTS["port"])) + { + $this->port = 443; + } + } + + if($this->_connect($fp)) + { + if($this->_isproxy) + { + // using proxy, send entire URI + $this->_httprequest($URI,$fp,$URI,$this->_httpmethod); + } + else + { + $path = $URI_PARTS["path"].(isset($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; + } + + + +/*======================================================================*\ + 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 = array("']*?>.*?'si", // strip out javascript + "'<[\/\!]*?[^<>]*?>'si", // strip out html tags + "'([\r\n])[\s]+'", // strip out white space + "'&(quote|#34);'i", // replace html entities + "'&(amp|#38);'i", + "'&(lt|#60);'i", + "'&(gt|#62);'i", + "'&(nbsp|#160);'i", + "'&(iexcl|#161);'i", + "'&(cent|#162);'i", + "'&(pound|#163);'i", + "'&(copy|#169);'i" + ); + $replace = array( "", + "", + "\\1", + "\"", + "&", + "<", + ">", + " ", + chr(161), + chr(162), + chr(163), + chr(169)); + + $text = preg_replace($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]); + + $search = array( "|^http://".preg_quote($this->host)."|i", + "|^(?!http://)(\/)?(?!mailto:)|i", + "|/\./|", + "|/[^\/]+/\.\./|" + ); + + $replace = array( "", + $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="",$body="") + { + if($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."\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; + } + 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"; + + $headers .= "\r\n"; + + // set the read timeout if needed + if ($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") + if(preg_match("/^\r?\n$/", $currentHeader) ) + break; + + if(!$this->_tried_digest && preg_match("/^WWW-Authenticate: Digest (.*)/", $currentHeader, $matches)) + { + // SJM - we got a Digest challenge. Try to respond... + + $digestheader = $matches[1]; + + preg_match("/nonce=\"(.*?)\"/", $digestheader, $matches); + $nonce = $matches[1]; + + preg_match("/realm=\"(.*?)\"/", $digestheader, $matches); + $realm = $matches[1]; + + $cnonce = md5(microtime()); + + $a1 = $this->user . ":" . $realm . ":" . $this->pass; + $a2 = $http_method . ":" . $url; + + $ha1 = md5($a1); + $ha2 = md5($a2); + + $response = md5($ha1 . ":" . $nonce . ":00000001:" . $cnonce . ":auth:" . $ha2); + + $auth = 'Digest username="' . $this->user . '", '; + $auth .= 'realm="' . $realm . '", '; + $auth .= 'nonce="' . $nonce . '", '; + $auth .= 'uri="' . $url . '", '; + $auth .= 'response="' . $response . '", '; + $auth .= 'algorithm="MD5", '; + $auth .= 'cnonce="' . $cnonce . '", '; + $auth .= 'nc=00000001, '; + $auth .= 'qop="auth"'; + + // SJM - treat Digest challenge as a redirect. set flag so we don't keep retrying. + + $this->_tried_digest = true; + + $this->rawheaders["Authorization"]=$auth . "\r\n"; + $this->user = ""; + $this->pass = ""; + + $this->_redirectaddr = $URI_PARTS['scheme'] . '://' . $this->host . $url; + } + + // if a header begins with Location: or URI:, set the redirect + if(preg_match("/^(Location:|URI:)/i",$currentHeader)) + { + // get URL portion of the redirect + preg_match("/^(Location:|URI:)\s+(.*)/",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; + } + + # $results = fread($fp, $this->maxlength); + $results = ""; + while ( $data = fread($fp, $this->maxlength) ) { + $results .= $data; + if ( + strlen($results) > $this->maxlength ) { + break; + } + } + + // 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_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: _curlrequest + Purpose: go get the https data from the server using curl + Input: $url the url to fetch + $URI the full URI + $body body contents to send if any (POST) + Output: +\*======================================================================*/ + + function _curlrequest($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)) + $headers[] = "Host: ".$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.":".$this->pass); + + for($curr_header = 0; $curr_header < count($headers); $curr_header++) + $cmdline_params .= " -H \"".$headers[$curr_header]."\""; + + if(!empty($body)) + $cmdline_params .= " -d \"$body\""; + + if($this->read_timeout > 0) + $cmdline_params .= " -m ".$this->read_timeout; + + $headerfile = uniqid(time()); + + # accept self-signed certs + + // mbi: removed, as it breaks on older cURL's + //$cmdline_params .= " -k"; + + exec($this->curl_path." -D \"/tmp/$headerfile\"".$cmdline_params." ".$URI,$results,$return); + + if($return) + { + $this->error = "Error: cURL could not retrieve the document, error $return."; + return false; + } + + + $results = implode("\r\n",$results); + + $result_headers = file("/tmp/$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[$currentHeader])) + { + // get URL portion of the redirect + preg_match("/^(Location: |URI:)(.*)/",chop($result_headers[$currentHeader]),$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 = $matches[2]; + } + + if(preg_match("|^HTTP/|",$result_headers[$currentHeader])) + { + $this->response_code = $result_headers[$currentHeader]; + if(preg_match("|^HTTP/[^\s]*\s(.*?)\s|",$this->response_code, $match)) + { + $this->status= $match[1]; + } + } + $this->headers[] = $result_headers[$currentHeader]; + } + + // 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_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 = $results; + + unlink("/tmp/$headerfile"); + + return true; + } + +/*======================================================================*\ + Function: setcookies() + Purpose: set cookies for a redirection +\*======================================================================*/ + + function setcookies() + { + for($x=0; $xheaders); $x++) + { + if(preg_match("/^set-cookie:[\s]+([^=]+)=([^;]+)/i", $this->headers[$x],$match)) + $this->cookies[$match[1]] = $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; + } + + $this->status = 0; + + if($this->_scheme == "https") + { + $host = "ssl://" . $host; + } + + if($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($formfiles, "array"); + + if (count($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; + } +} + +?> diff --git a/lib/magpierss/rss_cache.inc b/lib/magpierss/rss_cache.inc new file mode 100644 index 00000000..b8d436cd --- /dev/null +++ b/lib/magpierss/rss_cache.inc @@ -0,0 +1,200 @@ + + * Version: 0.51 + * License: GPL + * + * The lastest version of MagpieRSS can be obtained from: + * http://magpierss.sourceforge.net + * + * For questions, help, comments, discussion, etc., please join the + * Magpie mailing list: + * http://lists.sourceforge.net/lists/listinfo/magpierss-general + * + */ + +class RSSCache { + var $BASE_CACHE = './cache'; // where the cache files are stored + var $MAX_AGE = 3600; // when are files stale, default one hour + var $ERROR = ""; // accumulate error messages + + function RSSCache ($base='', $age='') { + if ( $base ) { + $this->BASE_CACHE = $base; + } + if ( $age ) { + $this->MAX_AGE = $age; + } + + // attempt to make the cache directory + if ( ! file_exists( $this->BASE_CACHE ) ) { + $status = @mkdir( $this->BASE_CACHE, 0755 ); + + // if make failed + if ( ! $status ) { + $this->error( + "Cache couldn't make dir '" . $this->BASE_CACHE . "'." + ); + } + } + } + +/*=======================================================================*\ + Function: set + Purpose: add an item to the cache, keyed on url + Input: url from wich the rss file was fetched + Output: true on sucess +\*=======================================================================*/ + function set ($url, $rss) { + $this->ERROR = ""; + $cache_file = $this->file_name( $url ); + $fp = @fopen( $cache_file, 'w' ); + + if ( ! $fp ) { + $this->error( + "Cache unable to open file for writing: $cache_file" + ); + return 0; + } + + + $data = $this->serialize( $rss ); + fwrite( $fp, $data ); + fclose( $fp ); + + return $cache_file; + } + +/*=======================================================================*\ + Function: get + Purpose: fetch an item from the cache + Input: url from wich the rss file was fetched + Output: cached object on HIT, false on MISS +\*=======================================================================*/ + function get ($url) { + $this->ERROR = ""; + $cache_file = $this->file_name( $url ); + + if ( ! file_exists( $cache_file ) ) { + $this->debug( + "Cache doesn't contain: $url (cache file: $cache_file)" + ); + return 0; + } + + $fp = @fopen($cache_file, 'r'); + if ( ! $fp ) { + $this->error( + "Failed to open cache file for reading: $cache_file" + ); + return 0; + } + + if ($filesize = filesize($cache_file) ) { + $data = fread( $fp, filesize($cache_file) ); + $rss = $this->unserialize( $data ); + + return $rss; + } + + return 0; + } + +/*=======================================================================*\ + Function: check_cache + Purpose: check a url for membership in the cache + and whether the object is older then MAX_AGE (ie. STALE) + Input: url from wich the rss file was fetched + Output: cached object on HIT, false on MISS +\*=======================================================================*/ + function check_cache ( $url ) { + $this->ERROR = ""; + $filename = $this->file_name( $url ); + + if ( file_exists( $filename ) ) { + // find how long ago the file was added to the cache + // and whether that is longer then MAX_AGE + $mtime = filemtime( $filename ); + $age = time() - $mtime; + if ( $this->MAX_AGE > $age ) { + // object exists and is current + return 'HIT'; + } + else { + // object exists but is old + return 'STALE'; + } + } + else { + // object does not exist + return 'MISS'; + } + } + + function cache_age( $cache_key ) { + $filename = $this->file_name( $url ); + if ( file_exists( $filename ) ) { + $mtime = filemtime( $filename ); + $age = time() - $mtime; + return $age; + } + else { + return -1; + } + } + +/*=======================================================================*\ + Function: serialize +\*=======================================================================*/ + function serialize ( $rss ) { + return serialize( $rss ); + } + +/*=======================================================================*\ + Function: unserialize +\*=======================================================================*/ + function unserialize ( $data ) { + return unserialize( $data ); + } + +/*=======================================================================*\ + Function: file_name + Purpose: map url to location in cache + Input: url from wich the rss file was fetched + Output: a file name +\*=======================================================================*/ + function file_name ($url) { + $filename = md5( $url ); + return join( DIRECTORY_SEPARATOR, array( $this->BASE_CACHE, $filename ) ); + } + +/*=======================================================================*\ + Function: error + Purpose: register error +\*=======================================================================*/ + function error ($errormsg, $lvl=E_USER_WARNING) { + // append PHP's error message if track_errors enabled + if ( isset($php_errormsg) ) { + $errormsg .= " ($php_errormsg)"; + } + $this->ERROR = $errormsg; + if ( MAGPIE_DEBUG ) { + trigger_error( $errormsg, $lvl); + } + else { + error_log( $errormsg, 0); + } + } + + function debug ($debugmsg, $lvl=E_USER_NOTICE) { + if ( MAGPIE_DEBUG ) { + $this->error("MagpieRSS [debug] $debugmsg", $lvl); + } + } + +} + +?> diff --git a/lib/magpierss/rss_fetch.inc b/lib/magpierss/rss_fetch.inc new file mode 100644 index 00000000..695d3b69 --- /dev/null +++ b/lib/magpierss/rss_fetch.inc @@ -0,0 +1,462 @@ + + * License: GPL + * + * The lastest version of MagpieRSS can be obtained from: + * http://magpierss.sourceforge.net + * + * For questions, help, comments, discussion, etc., please join the + * Magpie mailing list: + * magpierss-general@lists.sourceforge.net + * + */ + +// Setup MAGPIE_DIR for use on hosts that don't include +// the current path in include_path. +// with thanks to rajiv and smarty +if (!defined('DIR_SEP')) { + define('DIR_SEP', DIRECTORY_SEPARATOR); +} + +if (!defined('MAGPIE_DIR')) { + define('MAGPIE_DIR', dirname(__FILE__) . DIR_SEP); +} + +require_once( MAGPIE_DIR . 'rss_parse.inc' ); +require_once( MAGPIE_DIR . 'rss_cache.inc' ); + +// for including 3rd party libraries +define('MAGPIE_EXTLIB', MAGPIE_DIR . 'extlib' . DIR_SEP); +require_once( MAGPIE_EXTLIB . 'Snoopy.class.inc'); + + +/* + * CONSTANTS - redefine these in your script to change the + * behaviour of fetch_rss() currently, most options effect the cache + * + * MAGPIE_CACHE_ON - Should Magpie cache parsed RSS objects? + * For me a built in cache was essential to creating a "PHP-like" + * feel to Magpie, see rss_cache.inc for rationale + * + * + * MAGPIE_CACHE_DIR - Where should Magpie cache parsed RSS objects? + * This should be a location that the webserver can write to. If this + * directory does not already exist Mapie will try to be smart and create + * it. This will often fail for permissions reasons. + * + * + * MAGPIE_CACHE_AGE - How long to store cached RSS objects? In seconds. + * + * + * MAGPIE_CACHE_FRESH_ONLY - If remote fetch fails, throw error + * instead of returning stale object? + * + * MAGPIE_DEBUG - Display debugging notices? + * +*/ + + +/*=======================================================================*\ + Function: fetch_rss: + Purpose: return RSS object for the give url + maintain the cache + Input: url of RSS file + Output: parsed RSS object (see rss_parse.inc) + + NOTES ON CACHEING: + If caching is on (MAGPIE_CACHE_ON) fetch_rss will first check the cache. + + NOTES ON RETRIEVING REMOTE FILES: + If conditional gets are on (MAGPIE_CONDITIONAL_GET_ON) fetch_rss will + return a cached object, and touch the cache object upon recieving a + 304. + + NOTES ON FAILED REQUESTS: + If there is an HTTP error while fetching an RSS object, the cached + version will be return, if it exists (and if MAGPIE_CACHE_FRESH_ONLY is off) +\*=======================================================================*/ + +define('MAGPIE_VERSION', '0.72'); + +$MAGPIE_ERROR = ""; + +function fetch_rss ($url) { + // initialize constants + init(); + + if ( !isset($url) ) { + error("fetch_rss called without a url"); + return false; + } + + // if cache is disabled + if ( !MAGPIE_CACHE_ON ) { + // fetch file, and parse it + $resp = _fetch_remote_file( $url ); + if ( is_success( $resp->status ) ) { + return _response_to_rss( $resp ); + } + else { + error("Failed to fetch $url and cache is off"); + return false; + } + } + // else cache is ON + else { + // Flow + // 1. check cache + // 2. if there is a hit, make sure its fresh + // 3. if cached obj fails freshness check, fetch remote + // 4. if remote fails, return stale object, or error + + $cache = new RSSCache( MAGPIE_CACHE_DIR, MAGPIE_CACHE_AGE ); + + if (MAGPIE_DEBUG and $cache->ERROR) { + debug($cache->ERROR, E_USER_WARNING); + } + + + $cache_status = 0; // response of check_cache + $request_headers = array(); // HTTP headers to send with fetch + $rss = 0; // parsed RSS object + $errormsg = 0; // errors, if any + + // store parsed XML by desired output encoding + // as character munging happens at parse time + $cache_key = $url . MAGPIE_OUTPUT_ENCODING; + + if (!$cache->ERROR) { + // return cache HIT, MISS, or STALE + $cache_status = $cache->check_cache( $cache_key); + } + + // if object cached, and cache is fresh, return cached obj + if ( $cache_status == 'HIT' ) { + $rss = $cache->get( $cache_key ); + if ( isset($rss) and $rss ) { + // should be cache age + $rss->from_cache = 1; + if ( MAGPIE_DEBUG > 1) { + debug("MagpieRSS: Cache HIT", E_USER_NOTICE); + } + return $rss; + } + } + + // else attempt a conditional get + + // setup headers + if ( $cache_status == 'STALE' ) { + $rss = $cache->get( $cache_key ); + if ( $rss and $rss->etag and $rss->last_modified ) { + $request_headers['If-None-Match'] = $rss->etag; + $request_headers['If-Last-Modified'] = $rss->last_modified; + } + } + + $resp = _fetch_remote_file( $url, $request_headers ); + + if (isset($resp) and $resp) { + if ($resp->status == '304' ) { + // we have the most current copy + if ( MAGPIE_DEBUG > 1) { + debug("Got 304 for $url"); + } + // reset cache on 304 (at minutillo insistent prodding) + $cache->set($cache_key, $rss); + return $rss; + } + elseif ( is_success( $resp->status ) ) { + $rss = _response_to_rss( $resp ); + if ( $rss ) { + if (MAGPIE_DEBUG > 1) { + debug("Fetch successful"); + } + // add object to cache + $cache->set( $cache_key, $rss ); + return $rss; + } + } + else { + $errormsg = "Failed to fetch $url "; + if ( $resp->status == '-100' ) { + $errormsg .= "(Request timed out after " . MAGPIE_FETCH_TIME_OUT . " seconds)"; + } + elseif ( $resp->error ) { + # compensate for Snoopy's annoying habbit to tacking + # on '\n' + $http_error = substr($resp->error, 0, -2); + $errormsg .= "(HTTP Error: $http_error)"; + } + else { + $errormsg .= "(HTTP Response: " . $resp->response_code .')'; + } + } + } + else { + $errormsg = "Unable to retrieve RSS file for unknown reasons."; + } + + // else fetch failed + + // attempt to return cached object + if ($rss) { + if ( MAGPIE_DEBUG ) { + debug("Returning STALE object for $url"); + } + return $rss; + } + + // else we totally failed + error( $errormsg ); + + return false; + + } // end if ( !MAGPIE_CACHE_ON ) { +} // end fetch_rss() + +/*=======================================================================*\ + Function: error + Purpose: set MAGPIE_ERROR, and trigger error +\*=======================================================================*/ + +function error ($errormsg, $lvl=E_USER_WARNING) { + global $MAGPIE_ERROR; + + // append PHP's error message if track_errors enabled + if ( isset($php_errormsg) ) { + $errormsg .= " ($php_errormsg)"; + } + if ( $errormsg ) { + $errormsg = "MagpieRSS: $errormsg"; + $MAGPIE_ERROR = $errormsg; + trigger_error( $errormsg, $lvl); + } +} + +function debug ($debugmsg, $lvl=E_USER_NOTICE) { + trigger_error("MagpieRSS [debug] $debugmsg", $lvl); +} + +/*=======================================================================*\ + Function: magpie_error + Purpose: accessor for the magpie error variable +\*=======================================================================*/ +function magpie_error ($errormsg="") { + global $MAGPIE_ERROR; + + if ( isset($errormsg) and $errormsg ) { + $MAGPIE_ERROR = $errormsg; + } + + return $MAGPIE_ERROR; +} + +/*=======================================================================*\ + Function: _fetch_remote_file + Purpose: retrieve an arbitrary remote file + Input: url of the remote file + headers to send along with the request (optional) + Output: an HTTP response object (see Snoopy.class.inc) +\*=======================================================================*/ +function _fetch_remote_file ($url, $headers = "" ) { + // Snoopy is an HTTP client in PHP + $client = new Snoopy(); + $client->agent = MAGPIE_USER_AGENT; + $client->read_timeout = MAGPIE_FETCH_TIME_OUT; + $client->use_gzip = MAGPIE_USE_GZIP; + if (is_array($headers) ) { + $client->rawheaders = $headers; + } + + @$client->fetch($url); + return $client; + +} + +/*=======================================================================*\ + Function: _response_to_rss + Purpose: parse an HTTP response object into an RSS object + Input: an HTTP response object (see Snoopy) + Output: parsed RSS object (see rss_parse) +\*=======================================================================*/ +function _response_to_rss ($resp) { + $rss = new MagpieRSS( $resp->results, MAGPIE_OUTPUT_ENCODING, MAGPIE_INPUT_ENCODING, MAGPIE_DETECT_ENCODING ); + + // if RSS parsed successfully + if ( $rss and !$rss->ERROR) { + + // find Etag, and Last-Modified + foreach($resp->headers as $h) { + // 2003-03-02 - Nicola Asuni (www.tecnick.com) - fixed bug "Undefined offset: 1" + if (strpos($h, ": ")) { + list($field, $val) = explode(": ", $h, 2); + } + else { + $field = $h; + $val = ""; + } + + if ( $field == 'ETag' ) { + $rss->etag = $val; + } + + if ( $field == 'Last-Modified' ) { + $rss->last_modified = $val; + } + } + + return $rss; + } // else construct error message + else { + $errormsg = "Failed to parse RSS file."; + + if ($rss) { + $errormsg .= " (" . $rss->ERROR . ")"; + } + error($errormsg); + + return false; + } // end if ($rss and !$rss->error) +} + +/*=======================================================================*\ + Function: init + Purpose: setup constants with default values + check for user overrides +\*=======================================================================*/ +function init () { + if ( defined('MAGPIE_INITALIZED') ) { + return; + } + else { + define('MAGPIE_INITALIZED', true); + } + + if ( !defined('MAGPIE_CACHE_ON') ) { + define('MAGPIE_CACHE_ON', true); + } + + if ( !defined('MAGPIE_CACHE_DIR') ) { + define('MAGPIE_CACHE_DIR', './cache'); + } + + if ( !defined('MAGPIE_CACHE_AGE') ) { + define('MAGPIE_CACHE_AGE', 60*60); // one hour + } + + if ( !defined('MAGPIE_CACHE_FRESH_ONLY') ) { + define('MAGPIE_CACHE_FRESH_ONLY', false); + } + + if ( !defined('MAGPIE_OUTPUT_ENCODING') ) { + define('MAGPIE_OUTPUT_ENCODING', 'ISO-8859-1'); + } + + if ( !defined('MAGPIE_INPUT_ENCODING') ) { + define('MAGPIE_INPUT_ENCODING', null); + } + + if ( !defined('MAGPIE_DETECT_ENCODING') ) { + define('MAGPIE_DETECT_ENCODING', true); + } + + if ( !defined('MAGPIE_DEBUG') ) { + define('MAGPIE_DEBUG', 0); + } + + if ( !defined('MAGPIE_USER_AGENT') ) { + $ua = 'MagpieRSS/'. MAGPIE_VERSION . ' (+http://magpierss.sf.net'; + + if ( MAGPIE_CACHE_ON ) { + $ua = $ua . ')'; + } + else { + $ua = $ua . '; No cache)'; + } + + if ( defined('MAGPIE_USER_AGENT_EXT') ) { + $ua = $ua . MAGPIE_USER_AGENT_EXT; + } + + define('MAGPIE_USER_AGENT', $ua); + } + + if ( !defined('MAGPIE_FETCH_TIME_OUT') ) { + define('MAGPIE_FETCH_TIME_OUT', 5); // 5 second timeout + } + + // use gzip encoding to fetch rss files if supported? + if ( !defined('MAGPIE_USE_GZIP') ) { + define('MAGPIE_USE_GZIP', true); + } +} + +// NOTE: the following code should really be in Snoopy, or at least +// somewhere other then rss_fetch! + +/*=======================================================================*\ + HTTP STATUS CODE PREDICATES + These functions attempt to classify an HTTP status code + based on RFC 2616 and RFC 2518. + + All of them take an HTTP status code as input, and return true or false + + All this code is adapted from LWP's HTTP::Status. +\*=======================================================================*/ + + +/*=======================================================================*\ + Function: is_info + Purpose: return true if Informational status code +\*=======================================================================*/ +function is_info ($sc) { + return $sc >= 100 && $sc < 200; +} + +/*=======================================================================*\ + Function: is_success + Purpose: return true if Successful status code +\*=======================================================================*/ +function is_success ($sc) { + return $sc >= 200 && $sc < 300; +} + +/*=======================================================================*\ + Function: is_redirect + Purpose: return true if Redirection status code +\*=======================================================================*/ +function is_redirect ($sc) { + return $sc >= 300 && $sc < 400; +} + +/*=======================================================================*\ + Function: is_error + Purpose: return true if Error status code +\*=======================================================================*/ +function is_error ($sc) { + return $sc >= 400 && $sc < 600; +} + +/*=======================================================================*\ + Function: is_client_error + Purpose: return true if Error status code, and its a client error +\*=======================================================================*/ +function is_client_error ($sc) { + return $sc >= 400 && $sc < 500; +} + +/*=======================================================================*\ + Function: is_client_error + Purpose: return true if Error status code, and its a server error +\*=======================================================================*/ +function is_server_error ($sc) { + return $sc >= 500 && $sc < 600; +} + +?> diff --git a/lib/magpierss/rss_parse.inc b/lib/magpierss/rss_parse.inc new file mode 100644 index 00000000..01104831 --- /dev/null +++ b/lib/magpierss/rss_parse.inc @@ -0,0 +1,999 @@ + +* @version 0.8 +* @license GPL +* +*/ + +define('RSS', 'RSS'); +define('ATOM', 'Atom'); + +function _convert_entities ($string) { + # Source: http://www.w3.org/TR/REC-html40/sgml/entities.html + $html_entities = array( + " ", "¡", "¢", "£", "¤", "¥", "¦", "§", "¨", "©", + "ª", "«", "¬", "­", "®", "¯", "°", "±", "²", "³", + "´", "µ", "¶", "·", "¸", "¹", "º", "»", "¼", "½", + "¾", "¿", "À", "Á", "Â", "Ã", "Ä", "Å", "Æ", "Ç", + "È", "É", "Ê", "Ë", "Ì", "Í", "Î", "Ï", "Ð", "Ñ", + "Ò", "Ó", "Ô", "Õ", "Ö", "×", "Ø", "Ù", "Ú", "Û", + "Ü", "Ý", "Þ", "ß", "à", "á", "â", "ã", "ä", "å", + "æ", "ç", "è", "é", "ê", "ë", "ì", "í", "î", "ï", + "ð", "ñ", "ò", "ó", "ô", "õ", "ö", "÷", "ø", "ù", + "ú", "û", "ü", "ý", "þ", "ÿ",); + $numeric_entities = array( + " ", "¡", "¢", "£", "¤", "¥", "¦", "§", "¨", "©", + "ª", "«", "¬", "­", "®", "¯", "°", "±", "²", "³", + "´", "µ", "¶", "·", "¸", "¹", "º", "»", "¼", "½", + "¾", "¿", "À", "Á", "Â", "Ã", "Ä", "Å", "Æ", "Ç", + "È", "É", "Ê", "Ë", "Ì", "Í", "Î", "Ï", "Ð", "Ñ", + "Ò", "Ó", "Ô", "Õ", "Ö", "×", "Ø", "Ù", "Ú", "Û", + "Ü", "Ý", "Þ", "ß", "à", "á", "â", "ã", "ä", "å", + "æ", "ç", "è", "é", "ê", "ë", "ì", "í", "î", "ï", + "ð", "ñ", "ò", "ó", "ô", "õ", "ö", "÷", "ø", "ù", + "ú", "û", "ü", "ý", "þ", "ÿ"); + return str_replace($html_entities, $numeric_entities, $string); +} + + + +require_once (MAGPIE_DIR . 'rss_utils.inc'); + +/** +* Hybrid parser, and object, takes RSS as a string and returns a simple object. +* +* see: rss_fetch.inc for a simpler interface with integrated caching support +* +*/ +class MagpieRSS { + var $parser; + + var $current_item = array(); // item currently being parsed + var $items = array(); // collection of parsed items + var $channel = array(); // hash of channel fields + var $textinput = array(); + var $image = array(); + var $feed_type; + var $feed_version; + var $encoding = ''; // output encoding of parsed rss + + var $_source_encoding = ''; // only set if we have to parse xml prolog + + var $ERROR = ""; + var $WARNING = ""; + + // define some constants + + var $_ATOM_CONTENT_CONSTRUCTS = array( + 'content', 'summary', 'title', /* common */ + 'info', 'tagline', 'copyright', /* Atom 0.3 */ + 'rights', 'subtitle', /* Atom 1.0 */ + ); + var $_XHTML_CONTENT_CONSTRUCTS = array('body', 'div'); + var $_KNOWN_ENCODINGS = array('UTF-8', 'US-ASCII', 'ISO-8859-1'); + + // parser variables, useless if you're not a parser, treat as private + var $stack = array(); // parser stack + var $inchannel = false; + var $initem = false; + + var $incontent = array(); // non-empty if in namespaced XML content field + var $exclude_top = false; // true when Atom 1.0 type="xhtml" + + var $intextinput = false; + var $inimage = false; + var $current_namespace = false; + + /** + * Set up XML parser, parse source, and return populated RSS object.. + * + * @param string $source string containing the RSS to be parsed + * + * NOTE: Probably a good idea to leave the encoding options alone unless + * you know what you're doing as PHP's character set support is + * a little weird. + * + * NOTE: A lot of this is unnecessary but harmless with PHP5 + * + * + * @param string $output_encoding output the parsed RSS in this character + * set defaults to ISO-8859-1 as this is PHP's + * default. + * + * NOTE: might be changed to UTF-8 in future + * versions. + * + * @param string $input_encoding the character set of the incoming RSS source. + * Leave blank and Magpie will try to figure it + * out. + * + * + * @param bool $detect_encoding if false Magpie won't attempt to detect + * source encoding. (caveat emptor) + * + */ + function MagpieRSS ($source, $output_encoding='ISO-8859-1', + $input_encoding=null, $detect_encoding=true) + { + # if PHP xml isn't compiled in, die + # + if (!function_exists('xml_parser_create')) { + $this->error( "Failed to load PHP's XML Extension. " . + "http://www.php.net/manual/en/ref.xml.php", + E_USER_ERROR ); + } + + list($parser, $source) = $this->create_parser($source, + $output_encoding, $input_encoding, $detect_encoding); + + + if (!is_resource($parser)) { + $this->error( "Failed to create an instance of PHP's XML parser. " . + "http://www.php.net/manual/en/ref.xml.php", + E_USER_ERROR ); + } + + + $this->parser = $parser; + + # pass in parser, and a reference to this object + # setup handlers + # + xml_set_object( $this->parser, $this ); + xml_set_element_handler($this->parser, + 'feed_start_element', 'feed_end_element' ); + + xml_set_character_data_handler( $this->parser, 'feed_cdata' ); + + $source=str_replace("<","<",$source); + $source=str_replace(">",">",$source); + $source=str_replace("&","&",$source); + + $status = xml_parse( $this->parser, $source ); + + # try to force convert everything to UTF-8 and parse again + # to salvage at least some data from the feed + if (! $status) { + $errorcode = xml_get_error_code( $this->parser ); + if ( $errorcode != XML_ERROR_NONE ) { + + xml_parser_free( $this->parser ); + + if (preg_match('/<\?xml.*?encoding="([^ ]+)".*?\?>/', + $source, $matches)) { + + $enc = $matches[1]; + } else { + $enc = mb_detect_encoding($string); + } + + # try fix XML, pass 1 + + $source = mb_convert_encoding($source, "UTF-8", $enc); + + list($parser, $source) = $this->create_parser($source, + $output_encoding, $input_encoding, $detect_encoding); + + $this->parser = $parser; + + xml_set_object( $this->parser, $this ); + xml_set_element_handler($this->parser, + 'feed_start_element', 'feed_end_element' ); + + xml_set_character_data_handler( $this->parser, 'feed_cdata' ); + + $status = xml_parse( $this->parser, $source); + + # try to fix XML, pass 2 + + if (! $status) { + $errorcode = xml_get_error_code( $this->parser ); + if ( $errorcode != XML_ERROR_NONE ) { + + $source = _convert_entities($source); + + list($parser, $source) = $this->create_parser($source, + $output_encoding, $input_encoding, $detect_encoding); + + $this->parser = $parser; + + xml_set_object( $this->parser, $this ); + xml_set_element_handler($this->parser, + 'feed_start_element', 'feed_end_element' ); + + xml_set_character_data_handler( $this->parser, 'feed_cdata' ); + + $status = xml_parse( $this->parser, $source); + + } + } + } + } + + if (! $status ) { + $errorcode = xml_get_error_code( $this->parser ); + if ( $errorcode != XML_ERROR_NONE ) { + $xml_error = xml_error_string( $errorcode ); + $error_line = xml_get_current_line_number($this->parser); + $error_col = xml_get_current_column_number($this->parser); + $errormsg = "$xml_error at line $error_line, column $error_col"; + + $this->error( $errormsg ); + } + } + + xml_parser_free( $this->parser ); + + $this->normalize(); + } + + function feed_start_element($p, $element, &$attrs) { + $el = $element = strtolower($element); + $attrs = array_change_key_case($attrs, CASE_LOWER); + + // check for a namespace, and split if found + // Don't munge content tags + if ( empty($this->incontent) ) { + $ns = false; + if ( strpos( $element, ':' ) ) { + list($ns, $el) = split( ':', $element, 2); + } + if ( $ns and $ns != 'rdf' ) { + $this->current_namespace = $ns; + } + } + + # if feed type isn't set, then this is first element of feed + # identify feed from root element + # + if (!isset($this->feed_type) ) { + if ( $el == 'rdf' ) { + $this->feed_type = RSS; + $this->feed_version = '1.0'; + } + elseif ( $el == 'rss' ) { + $this->feed_type = RSS; + $this->feed_version = $attrs['version']; + } + elseif ( $el == 'feed' ) { + $this->feed_type = ATOM; + if ($attrs['xmlns'] == 'http://www.w3.org/2005/Atom') { // Atom 1.0 + $this->feed_version = '1.0'; + } + else { // Atom 0.3, probably. + $this->feed_version = $attrs['version']; + } + $this->inchannel = true; + } + return; + } + + // if we're inside a namespaced content construct, treat tags as text + if ( !empty($this->incontent) ) + { + if ((count($this->incontent) > 1) or !$this->exclude_top) { + // if tags are inlined, then flatten + $attrs_str = join(' ', + array_map('map_attrs', + array_keys($attrs), + array_values($attrs) ) + ); + + if (strlen($attrs_str) > 0) { $attrs_str = ' '.$attrs_str; } + + $this->append_content( "<{$element}{$attrs_str}>" ); + } + array_push($this->incontent, $el); // stack for parsing content XML + } + + elseif ( $el == 'channel' ) { + $this->inchannel = true; + } + + elseif ($el == 'item' or $el == 'entry' ) + { + $this->initem = true; + if ( isset($attrs['rdf:about']) ) { + $this->current_item['about'] = $attrs['rdf:about']; + } + } + + // if we're in the default namespace of an RSS feed, + // record textinput or image fields + elseif ( + $this->feed_type == RSS and + $this->current_namespace == '' and + $el == 'textinput' ) + { + $this->intextinput = true; + } + + elseif ( + $this->feed_type == RSS and + $this->current_namespace == '' and + $el == 'image' ) + { + $this->inimage = true; + } + + // set stack[0] to current element + else { + // Atom support many links per containing element. + // Magpie treats link elements of type rel='alternate' + // as being equivalent to RSS's simple link element. + + $atom_link = false; + if ($this->feed_type == ATOM and $el == 'link') { + $atom_link = true; + if (isset($attrs['rel']) and $attrs['rel'] != 'alternate') { + $el = $el . "_" . $attrs['rel']; // pseudo-element names for Atom link elements + } + } + # handle atom content constructs + elseif ( $this->feed_type == ATOM and in_array($el, $this->_ATOM_CONTENT_CONSTRUCTS) ) + { + // avoid clashing w/ RSS mod_content + if ($el == 'content' ) { + $el = 'atom_content'; + } + + // assume that everything accepts namespaced XML + // (that will pass through some non-validating feeds; + // but so what? this isn't a validating parser) + $this->incontent = array(); + array_push($this->incontent, $el); // start a stack + + if ( isset($attrs['type']) and trim(strtolower($attrs['type']))=='xhtml') { + $this->exclude_top = true; + } else { + $this->exclude_top = false; + } + } + # Handle inline XHTML body elements --CWJ + elseif (($this->current_namespace=='xhtml' or + (isset($attrs['xmlns']) and $attrs['xmlns'] == 'http://www.w3.org/1999/xhtml')) + and in_array($el, $this->_XHTML_CONTENT_CONSTRUCTS) ) + { + $this->current_namespace = 'xhtml'; + $this->incontent = array(); + array_push($this->incontent, $el); // start a stack + $this->exclude_top = false; + } + + array_unshift($this->stack, $el); + $elpath = join('_', array_reverse($this->stack)); + + $n = $this->element_count($elpath); + $this->element_count($elpath, $n+1); + + if ($n > 0) { + array_shift($this->stack); + array_unshift($this->stack, $el.'#'.($n+1)); + $elpath = join('_', array_reverse($this->stack)); + } + + // this makes the baby Jesus cry, but we can't do it in normalize() + // because we've made the element name for Atom links unpredictable + // by tacking on the relation to the end. -CWJ + if ($atom_link and isset($attrs['href'])) { + $this->append($elpath, $attrs['href']); + } + + // add attributes + if (count($attrs) > 0) { + $this->append($elpath.'@', join(',', array_keys($attrs))); + foreach ($attrs as $attr => $value) { + $this->append($elpath.'@'.$attr, $value); + } + } + } + } + + + + function feed_cdata ($p, $text) { + + if ($this->incontent) { + $this->append_content( $text ); + } + else { + $current_el = join('_', array_reverse($this->stack)); + $this->append($current_el, $text); + } + } + + function feed_end_element ($p, $el) { + $el = strtolower($el); + + if ( $this->incontent ) { + $opener = array_pop($this->incontent); + + // Don't get bamboozled by namespace voodoo + if (strpos($el, ':')) { list($ns, $closer) = split(':', $el); } + else { $ns = false; $closer = $el; } + + // Don't get bamboozled by our munging of , either + if ($this->feed_type == ATOM and $closer == 'content') { + $closer = 'atom_content'; + } + + // balance tags properly + // note: i don't think this is actually neccessary + if ($opener != $closer) { + array_push($this->incontent, $opener); + $this->append_content("<$el />"); + } elseif ($this->incontent) { // are we in the content construct still? + if ((count($this->incontent) > 1) or !$this->exclude_top) { + $this->append_content(""); + } + } else { // shift the opening of the content construct off the normal stack + array_shift( $this->stack ); + } + } + elseif ( $el == 'item' or $el == 'entry' ) + { + $this->items[] = $this->current_item; + $this->current_item = array(); + $this->initem = false; + + $this->current_category = 0; + } + elseif ($this->feed_type == RSS and $this->current_namespace == '' and $el == 'textinput' ) + { + $this->intextinput = false; + } + elseif ($this->feed_type == RSS and $this->current_namespace == '' and $el == 'image' ) + { + $this->inimage = false; + } + elseif ($el == 'channel' or $el == 'feed' ) + { + $this->inchannel = false; + } + else { + array_shift( $this->stack ); + } + + if ( !$this->incontent ) { // Don't munge the namespace after finishing with elements in namespaced content constructs -CWJ + $this->current_namespace = false; + } + } + + function concat (&$str1, $str2="") { + if (!isset($str1) ) { + $str1=""; + } + $str1 .= $str2; + } + + function append_content($text) { + if ( $this->initem ) { + if ($this->current_namespace) { + $this->concat( $this->current_item[$this->current_namespace][ reset($this->incontent) ], $text ); + } else { + $this->concat( $this->current_item[ reset($this->incontent) ], $text ); + } + } + elseif ( $this->inchannel ) { + if ($this->current_namespace) { + $this->concat( $this->channel[$this->current_namespace][ reset($this->incontent) ], $text ); + } else { + $this->concat( $this->channel[ reset($this->incontent) ], $text ); + } + } + } + + // smart append - field and namespace aware + function append($el, $text) { + if (!$el) { + return; + } + if ( $this->current_namespace ) + { + if ( $this->initem ) { + $this->concat( + $this->current_item[ $this->current_namespace ][ $el ], $text); + } + elseif ($this->inchannel) { + $this->concat( + $this->channel[ $this->current_namespace][ $el ], $text ); + } + elseif ($this->intextinput) { + $this->concat( + $this->textinput[ $this->current_namespace][ $el ], $text ); + } + elseif ($this->inimage) { + $this->concat( + $this->image[ $this->current_namespace ][ $el ], $text ); + } + } + else { + if ( $this->initem ) { + $this->concat( + $this->current_item[ $el ], $text); + } + elseif ($this->intextinput) { + $this->concat( + $this->textinput[ $el ], $text ); + } + elseif ($this->inimage) { + $this->concat( + $this->image[ $el ], $text ); + } + elseif ($this->inchannel) { + $this->concat( + $this->channel[ $el ], $text ); + } + + } + } + + // smart count - field and namespace aware + function element_count ($el, $set = NULL) { + if (!$el) { + return; + } + if ( $this->current_namespace ) + { + if ( $this->initem ) { + if (!is_null($set)) { $this->current_item[ $this->current_namespace ][ $el.'#' ] = $set; } + $ret = (isset($this->current_item[ $this->current_namespace ][ $el.'#' ]) ? + $this->current_item[ $this->current_namespace ][ $el.'#' ] : 0); + } + elseif ($this->inchannel) { + if (!is_null($set)) { $this->channel[ $this->current_namespace ][ $el.'#' ] = $set; } + $ret = (isset($this->channel[ $this->current_namespace][ $el.'#' ]) ? + $this->channel[ $this->current_namespace][ $el.'#' ] : 0); + } + } + else { + if ( $this->initem ) { + if (!is_null($set)) { $this->current_item[ $el.'#' ] = $set; } + $ret = (isset($this->current_item[ $el.'#' ]) ? + $this->current_item[ $el.'#' ] : 0); + } + elseif ($this->inchannel) { + if (!is_null($set)) {$this->channel[ $el.'#' ] = $set; } + $ret = (isset($this->channel[ $el.'#' ]) ? + $this->channel[ $el.'#' ] : 0); + } + } + return $ret; + } + + function normalize_enclosure (&$source, $from, &$dest, $to, $i) { + $id_from = $this->element_id($from, $i); + $id_to = $this->element_id($to, $i); + if (isset($source["{$id_from}@"])) { + foreach (explode(',', $source["{$id_from}@"]) as $attr) { + if ($from=='link_enclosure' and $attr=='href') { // from Atom + $dest["{$id_to}@url"] = $source["{$id_from}@{$attr}"]; + $dest["{$id_to}"] = $source["{$id_from}@{$attr}"]; + } + elseif ($from=='enclosure' and $attr=='url') { // from RSS + $dest["{$id_to}@href"] = $source["{$id_from}@{$attr}"]; + $dest["{$id_to}"] = $source["{$id_from}@{$attr}"]; + } + else { + $dest["{$id_to}@{$attr}"] = $source["{$id_from}@{$attr}"]; + } + } + } + } + + function normalize_atom_person (&$source, $person, &$dest, $to, $i) { + $id = $this->element_id($person, $i); + $id_to = $this->element_id($to, $i); + + // Atom 0.3 <=> Atom 1.0 + if ($this->feed_version >= 1.0) { $used = 'uri'; $norm = 'url'; } + else { $used = 'url'; $norm = 'uri'; } + + if (isset($source["{$id}_{$used}"])) { + $dest["{$id_to}_{$norm}"] = $source["{$id}_{$used}"]; + } + + // Atom to RSS 2.0 and Dublin Core + // RSS 2.0 person strings should be valid e-mail addresses if possible. + if (isset($source["{$id}_email"])) { + $rss_author = $source["{$id}_email"]; + } + if (isset($source["{$id}_name"])) { + $rss_author = $source["{$id}_name"] + . (isset($rss_author) ? " <$rss_author>" : ''); + } + if (isset($rss_author)) { + $source[$id] = $rss_author; // goes to top-level author or contributor + $dest[$id_to] = $rss_author; // goes to dc:creator or dc:contributor + } + } + + // Normalize Atom 1.0 and RSS 2.0 categories to Dublin Core... + function normalize_category (&$source, $from, &$dest, $to, $i) { + $cat_id = $this->element_id($from, $i); + $dc_id = $this->element_id($to, $i); + + // first normalize category elements: Atom 1.0 <=> RSS 2.0 + if ( isset($source["{$cat_id}@term"]) ) { // category identifier + $source[$cat_id] = $source["{$cat_id}@term"]; + } elseif ( $this->feed_type == RSS ) { + $source["{$cat_id}@term"] = $source[$cat_id]; + } + + if ( isset($source["{$cat_id}@scheme"]) ) { // URI to taxonomy + $source["{$cat_id}@domain"] = $source["{$cat_id}@scheme"]; + } elseif ( isset($source["{$cat_id}@domain"]) ) { + $source["{$cat_id}@scheme"] = $source["{$cat_id}@domain"]; + } + + // Now put the identifier into dc:subject + $dest[$dc_id] = $source[$cat_id]; + } + + // ... or vice versa + function normalize_dc_subject (&$source, $from, &$dest, $to, $i) { + $dc_id = $this->element_id($from, $i); + $cat_id = $this->element_id($to, $i); + + $dest[$cat_id] = $source[$dc_id]; // RSS 2.0 + $dest["{$cat_id}@term"] = $source[$dc_id]; // Atom 1.0 + } + + // simplify the logic for normalize(). Makes sure that count of elements and + // each of multiple elements is normalized properly. If you need to mess + // with things like attributes or change formats or the like, pass it a + // callback to handle each element. + function normalize_element (&$source, $from, &$dest, $to, $via = NULL) { + if (isset($source[$from]) or isset($source["{$from}#"])) { + if (isset($source["{$from}#"])) { + $n = $source["{$from}#"]; + $dest["{$to}#"] = $source["{$from}#"]; + } + else { $n = 1; } + + for ($i = 1; $i <= $n; $i++) { + if (isset($via)) { // custom callback for ninja attacks + $this->{$via}($source, $from, $dest, $to, $i); + } + else { // just make it the same + $from_id = $this->element_id($from, $i); + $to_id = $this->element_id($to, $i); + $dest[$to_id] = $source[$from_id]; + } + } + } + } + + function normalize () { + // if atom populate rss fields and normalize 0.3 and 1.0 feeds + if ( $this->is_atom() ) { + // Atom 1.0 elements <=> Atom 0.3 elements (Thanks, o brilliant wordsmiths of the Atom 1.0 standard!) + if ($this->feed_version < 1.0) { + $this->normalize_element($this->channel, 'tagline', $this->channel, 'subtitle'); + $this->normalize_element($this->channel, 'copyright', $this->channel, 'rights'); + $this->normalize_element($this->channel, 'modified', $this->channel, 'updated'); + } else { + $this->normalize_element($this->channel, 'subtitle', $this->channel, 'tagline'); + $this->normalize_element($this->channel, 'rights', $this->channel, 'copyright'); + $this->normalize_element($this->channel, 'updated', $this->channel, 'modified'); + } + $this->normalize_element($this->channel, 'author', $this->channel['dc'], 'creator', 'normalize_atom_person'); + $this->normalize_element($this->channel, 'contributor', $this->channel['dc'], 'contributor', 'normalize_atom_person'); + + // Atom elements to RSS elements + $this->normalize_element($this->channel, 'subtitle', $this->channel, 'description'); + + if ( isset($this->channel['logo']) ) { + $this->normalize_element($this->channel, 'logo', $this->image, 'url'); + $this->normalize_element($this->channel, 'link', $this->image, 'link'); + $this->normalize_element($this->channel, 'title', $this->image, 'title'); + } + + for ( $i = 0; $i < count($this->items); $i++) { + $item = $this->items[$i]; + + // Atom 1.0 elements <=> Atom 0.3 elements + if ($this->feed_version < 1.0) { + $this->normalize_element($item, 'modified', $item, 'updated'); + $this->normalize_element($item, 'issued', $item, 'published'); + } else { + $this->normalize_element($item, 'updated', $item, 'modified'); + $this->normalize_element($item, 'published', $item, 'issued'); + } + + // "If an atom:entry element does not contain + // atom:author elements, then the atom:author elements + // of the contained atom:source element are considered + // to apply. In an Atom Feed Document, the atom:author + // elements of the containing atom:feed element are + // considered to apply to the entry if there are no + // atom:author elements in the locations described + // above." + if (!isset($item["author#"])) { + if (isset($item["source_author#"])) { // from aggregation source + $source = $item; + $author = "source_author"; + } elseif (isset($this->channel["author#"])) { // from containing feed + $source = $this->channel; + $author = "author"; + } + + $item["author#"] = $source["{$author}#"]; + for ($au = 1; $au <= $item["author#"]; $au++) { + $id_to = $this->element_id('author', $au); + $id_from = $this->element_id($author, $au); + + $item[$id_to] = $source[$id_from]; + foreach (array('name', 'email', 'uri', 'url') as $what) { + if (isset($source["{$id_from}_{$what}"])) { + $item["{$id_to}_{$what}"] = $source["{$id_from}_{$what}"]; + } + } + } + } + + // Atom elements to RSS elements + $this->normalize_element($item, 'author', $item['dc'], 'creator', 'normalize_atom_person'); + $this->normalize_element($item, 'contributor', $item['dc'], 'contributor', 'normalize_atom_person'); + $this->normalize_element($item, 'summary', $item, 'description'); + $this->normalize_element($item, 'atom_content', $item['content'], 'encoded'); + $this->normalize_element($item, 'link_enclosure', $item, 'enclosure', 'normalize_enclosure'); + + // Categories + if ( isset($item['category#']) ) { // Atom 1.0 categories to dc:subject and RSS 2.0 categories + $this->normalize_element($item, 'category', $item['dc'], 'subject', 'normalize_category'); + } + elseif ( isset($item['dc']['subject#']) ) { // dc:subject to Atom 1.0 and RSS 2.0 categories + $this->normalize_element($item['dc'], 'subject', $item, 'category', 'normalize_dc_subject'); + } + + // Normalized item timestamp + $atom_date = (isset($item['published']) ) ? $item['published'] : $item['updated']; + if ( $atom_date ) { + $epoch = @parse_w3cdtf($atom_date); + if ($epoch and $epoch > 0) { + $item['date_timestamp'] = $epoch; + } + } + + $this->items[$i] = $item; + } + } + elseif ( $this->is_rss() ) { + // RSS elements to Atom elements + $this->normalize_element($this->channel, 'description', $this->channel, 'tagline'); // Atom 0.3 + $this->normalize_element($this->channel, 'description', $this->channel, 'subtitle'); // Atom 1.0 (yay wordsmithing!) + $this->normalize_element($this->image, 'url', $this->channel, 'logo'); + + for ( $i = 0; $i < count($this->items); $i++) { + $item = $this->items[$i]; + + // RSS elements to Atom elements + $this->normalize_element($item, 'description', $item, 'summary'); + $this->normalize_element($item['content'], 'encoded', $item, 'atom_content'); + $this->normalize_element($item, 'enclosure', $item, 'link_enclosure', 'normalize_enclosure'); + + // Categories + if ( isset($item['category#']) ) { // RSS 2.0 categories to dc:subject and Atom 1.0 categories + $this->normalize_element($item, 'category', $item['dc'], 'subject', 'normalize_category'); + } + elseif ( isset($item['dc']['subject#']) ) { // dc:subject to Atom 1.0 and RSS 2.0 categories + $this->normalize_element($item['dc'], 'subject', $item, 'category', 'normalize_dc_subject'); + } + + // Normalized item timestamp + if ( $this->is_rss() == '1.0' and isset($item['dc']['date']) ) { + $epoch = @parse_w3cdtf($item['dc']['date']); + if ($epoch and $epoch > 0) { + $item['date_timestamp'] = $epoch; + } + } + elseif ( isset($item['pubdate']) ) { + $epoch = @strtotime($item['pubdate']); + if ($epoch > 0) { + $item['date_timestamp'] = $epoch; + } + } + + $this->items[$i] = $item; + } + } + } + + + function is_rss () { + if ( $this->feed_type == RSS ) { + return $this->feed_version; + } + else { + return false; + } + } + + function is_atom() { + if ( $this->feed_type == ATOM ) { + return $this->feed_version; + } + else { + return false; + } + } + + /** + * return XML parser, and possibly re-encoded source + * + */ + function create_parser($source, $out_enc, $in_enc, $detect) { + if ( substr(phpversion(),0,1) == 5) { + $parser = $this->php5_create_parser($in_enc, $detect); + } + else { + list($parser, $source) = $this->php4_create_parser($source, $in_enc, $detect); + } + if ($out_enc) { + $this->encoding = $out_enc; + xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, $out_enc); + } + + return array($parser, $source); + } + + /** + * Instantiate an XML parser under PHP5 + * + * PHP5 will do a fine job of detecting input encoding + * if passed an empty string as the encoding. + * + * All hail libxml2! + * + */ + function php5_create_parser($in_enc, $detect) { + // by default php5 does a fine job of detecting input encodings + if(!$detect && $in_enc) { + return xml_parser_create($in_enc); + } + else { + return xml_parser_create(''); + } + } + + /** + * Instaniate an XML parser under PHP4 + * + * Unfortunately PHP4's support for character encodings + * and especially XML and character encodings sucks. As + * long as the documents you parse only contain characters + * from the ISO-8859-1 character set (a superset of ASCII, + * and a subset of UTF-8) you're fine. However once you + * step out of that comfy little world things get mad, bad, + * and dangerous to know. + * + * The following code is based on SJM's work with FoF + * @see http://minutillo.com/steve/weblog/2004/6/17/php-xml-and-character-encodings-a-tale-of-sadness-rage-and-data-loss + * + */ + function php4_create_parser($source, $in_enc, $detect) { + if ( !$detect ) { + return array(xml_parser_create($in_enc), $source); + } + + if (!$in_enc) { + if (preg_match('//m', $source, $m)) { + $in_enc = strtoupper($m[1]); + $this->source_encoding = $in_enc; + } + else { + $in_enc = 'UTF-8'; + } + } + + if ($this->known_encoding($in_enc)) { + return array(xml_parser_create($in_enc), $source); + } + + // the dectected encoding is not one of the simple encodings PHP knows + + // attempt to use the iconv extension to + // cast the XML to a known encoding + // @see http://php.net/iconv + + if (function_exists('iconv')) { + $encoded_source = iconv($in_enc,'UTF-8', $source); + if ($encoded_source) { + return array(xml_parser_create('UTF-8'), $encoded_source); + } + } + + // iconv didn't work, try mb_convert_encoding + // @see http://php.net/mbstring + if(function_exists('mb_convert_encoding')) { + $encoded_source = mb_convert_encoding($source, 'UTF-8', $in_enc ); + if ($encoded_source) { + return array(xml_parser_create('UTF-8'), $encoded_source); + } + } + + // else + $this->error("Feed is in an unsupported character encoding. ($in_enc) " . + "You may see strange artifacts, and mangled characters.", + E_USER_NOTICE); + + return array(xml_parser_create(), $source); + } + + function known_encoding($enc) { + $enc = strtoupper($enc); + if ( in_array($enc, $this->_KNOWN_ENCODINGS) ) { + return $enc; + } + else { + return false; + } + } + + function error ($errormsg, $lvl=E_USER_WARNING) { + // append PHP's error message if track_errors enabled + if ( isset($php_errormsg) ) { + $errormsg .= " ($php_errormsg)"; + } + if ( MAGPIE_DEBUG ) { + trigger_error( $errormsg, $lvl); + } + else { + error_log( $errormsg, 0); + } + + $notices = E_USER_NOTICE|E_NOTICE; + if ( $lvl&$notices ) { + $this->WARNING = $errormsg; + } else { + $this->ERROR = $errormsg; + } + } + + // magic ID function for multiple elemenets. + // can be called as static MagpieRSS::element_id() + function element_id ($el, $counter) { + return $el . (($counter > 1) ? '#'.$counter : ''); + } +} // end class RSS + +function map_attrs($k, $v) { + return "$k=\"$v\""; +} + +// patch to support medieval versions of PHP4.1.x, +// courtesy, Ryan Currie, ryan@digibliss.com + +if (!function_exists('array_change_key_case')) { + define("CASE_UPPER",1); + define("CASE_LOWER",0); + + + function array_change_key_case($array,$case=CASE_LOWER) { + if ($case==CASE_LOWER) $cmd='strtolower'; + elseif ($case==CASE_UPPER) $cmd='strtoupper'; + foreach($array as $key=>$value) { + $output[$cmd($key)]=$value; + } + return $output; + } + +} + +?> diff --git a/lib/magpierss/rss_utils.inc b/lib/magpierss/rss_utils.inc new file mode 100644 index 00000000..86fbdc82 --- /dev/null +++ b/lib/magpierss/rss_utils.inc @@ -0,0 +1,67 @@ + + * Version: 0.51 + * License: GPL + * + * The lastest version of MagpieRSS can be obtained from: + * http://magpierss.sourceforge.net + * + * For questions, help, comments, discussion, etc., please join the + * Magpie mailing list: + * magpierss-general@lists.sourceforge.net + */ + + +/*======================================================================*\ + Function: parse_w3cdtf + Purpose: parse a W3CDTF date into unix epoch + + NOTE: http://www.w3.org/TR/NOTE-datetime +\*======================================================================*/ + +function parse_w3cdtf ( $date_str ) { + + # regex to match wc3dtf + $pat = "/(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2})(:(\d{2}))?(?:([-+])(\d{2}):?(\d{2})|(Z))?/"; + + if ( preg_match( $pat, $date_str, $match ) ) { + list( $year, $month, $day, $hours, $minutes, $seconds) = + array( $match[1], $match[2], $match[3], $match[4], $match[5], $match[7]); + + # calc epoch for current date assuming GMT + $epoch = gmmktime( $hours, $minutes, $seconds, $month, $day, $year); + + $offset = 0; + if ( $match[11] == 'Z' ) { + # zulu time, aka GMT + } + else { + list( $tz_mod, $tz_hour, $tz_min ) = + array( $match[8], $match[9], $match[10]); + + # zero out the variables + if ( ! $tz_hour ) { $tz_hour = 0; } + if ( ! $tz_min ) { $tz_min = 0; } + + $offset_secs = (($tz_hour*60)+$tz_min)*60; + + # is timezone ahead of GMT? then subtract offset + # + if ( $tz_mod == '+' ) { + $offset_secs = $offset_secs * -1; + } + + $offset = $offset_secs; + } + $epoch = $epoch + $offset; + return $epoch; + } + else { + return -1; + } +} + +?> diff --git a/magpierss/AUTHORS b/magpierss/AUTHORS deleted file mode 100644 index 7d7f3f53..00000000 --- a/magpierss/AUTHORS +++ /dev/null @@ -1 +0,0 @@ -kellan diff --git a/magpierss/README b/magpierss/README deleted file mode 100644 index 6af7edb0..00000000 --- a/magpierss/README +++ /dev/null @@ -1,48 +0,0 @@ -NAME - - MagpieRSS - a simple RSS integration tool - -SYNOPSIS - - require_once(rss_fetch.inc); - $url = $_GET['url']; - $rss = fetch_rss( $url ); - - echo "Channel Title: " . $rss->channel['title'] . "

"; - echo "

"; - -DESCRIPTION - - MapieRSS is an XML-based RSS parser in PHP. It attempts to be "PHP-like", - and simple to use. - - Some features include: - - * supports RSS 0.9 - 1.0, with limited RSS 2.0 support - * supports namespaces, and modules, including mod_content and mod_event - * open minded [1] - * simple, functional interface, to object oriented backend parser - * automatic caching of parsed RSS objects makes its easy to integrate - * supports conditional GET with Last-Modified, and ETag - * uses constants for easy override of default behaviour - * heavily commented - - -1. By open minded I mean Magpie will accept any tag it finds in good faith that - it was supposed to be here. For strict validation, look elsewhere. - - -GETTING STARTED - - - -COPYRIGHT: - Copyright(c) 2002 kellan@protest.net. All rights reserved. - This software is released under the GNU General Public License. - Please read the disclaimer at the top of the Snoopy.class.inc file. diff --git a/magpierss/extlib/Snoopy.class.inc b/magpierss/extlib/Snoopy.class.inc deleted file mode 100644 index 17e6a952..00000000 --- a/magpierss/extlib/Snoopy.class.inc +++ /dev/null @@ -1,1001 +0,0 @@ - -Copyright (c): 1999-2000 ispi, all rights reserved -Version: 1.0 (plus - see SJM comments below) - - * 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: -monte@ispi.net - -Or, write to: -Monte Ohrt -CTO, ispi -237 S. 70th suite 220 -Lincoln, NE 68510 - -The latest version of Snoopy can be obtained from: -http://snoopy.sourceforge.com - - - -SJM - alpha-grade changes based on the version of Snoopy released with MagpieRSS 0.7 - -comments to steve@minutillo.com - -Two additions: - -1) If this is PHP 4.3 or greater, and 'openssl' is available, - use the PHP built in SSL support for "https" instead of calling curl externally. - Use of external curl can still be forced by setting $use_curl = true. - - ref: http://us2.php.net/fsockopen - -2) HTTP Digest Authentication. If you set a username and password, basic auth - will be tried first. If that fails, and the server sends back an - WWW-Authenticate: Digest header, the request will be retried with the appropriate - digest response. Only qop=auth is supported, with MD5 as the algorithm. - I realize that sending basic auth first, and then following up with a digest - challenge-response kind of defeats the purpose in terms of security. - - ref: http://www.faqs.org/rfcs/rfc2617.html - -*************************************************/ - -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 $agent = "Snoopy v1.0"; // 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() - // or submitlinks() - 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 = 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 $curl_path = "/usr/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. - - // SJM - always use curl for HTTPS requests? - var $use_curl = false; - - - // send Accept-encoding: gzip? - var $use_gzip = true; - - /**** Private variables ****/ - - var $_maxlinelen = 4096; // max line length (headers) - - var $_scheme = "http"; // default scheme - 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 $_trieddigest = false; // have we tried Digest auth yet? - 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"])) - $this->user = urldecode($URI_PARTS["user"]); - if (!empty($URI_PARTS["pass"])) - $this->pass = urldecode($URI_PARTS["pass"]); - - $this->_scheme = $URI_PARTS["scheme"]; - - switch($URI_PARTS["scheme"]) - { - case "http": - case "https": - break; - - default: - // not a valid protocol - $this->error = 'Invalid protocol "'.$URI_PARTS["scheme"].'"\n'; - return false; - } - - if($URI_PARTS["scheme"] == "https") - { - // SJM - if they really want curl, or it isn't PHP 4.3 yet, or openssl extension isn't loaded - - if($use_curl || !function_exists('file_get_contents') || !extension_loaded('openssl')) - { - if(!$this->curl_path || (!is_executable($this->curl_path))) { - $this->error = "Bad curl ($this->curl_path), can't fetch HTTPS \n"; - 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 - $this->_curlrequest($URI,$URI,$this->_httpmethod); - } - else - { - $path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : ""); - // no proxy, send only the path - $this->_curlrequest($path, $URI, $this->_httpmethod); - } - - if($this->_redirectaddr) - { - /* url was redirected, check if we've hit the max depth */ - if($this->maxredirs > $this->_redirectdepth) - { - // only follow redirect if it's on this site, or offsiteok is true - if(preg_match("|^http://".preg_quote($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; - } - } - return true; - } - } - - // SJM - else drop through and treat https as http - - $this->host = $URI_PARTS["host"]; - if(!empty($URI_PARTS["port"])) - $this->port = $URI_PARTS["port"]; - - // SJM - if it's https, default the port to 443 - if($URI_PARTS["scheme"] == "https") - { - if(empty($URI_PARTS["port"])) - { - $this->port = 443; - } - } - - if($this->_connect($fp)) - { - if($this->_isproxy) - { - // using proxy, send entire URI - $this->_httprequest($URI,$fp,$URI,$this->_httpmethod); - } - else - { - $path = $URI_PARTS["path"].(isset($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; - } - - - -/*======================================================================*\ - 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 = array("']*?>.*?'si", // strip out javascript - "'<[\/\!]*?[^<>]*?>'si", // strip out html tags - "'([\r\n])[\s]+'", // strip out white space - "'&(quote|#34);'i", // replace html entities - "'&(amp|#38);'i", - "'&(lt|#60);'i", - "'&(gt|#62);'i", - "'&(nbsp|#160);'i", - "'&(iexcl|#161);'i", - "'&(cent|#162);'i", - "'&(pound|#163);'i", - "'&(copy|#169);'i" - ); - $replace = array( "", - "", - "\\1", - "\"", - "&", - "<", - ">", - " ", - chr(161), - chr(162), - chr(163), - chr(169)); - - $text = preg_replace($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]); - - $search = array( "|^http://".preg_quote($this->host)."|i", - "|^(?!http://)(\/)?(?!mailto:)|i", - "|/\./|", - "|/[^\/]+/\.\./|" - ); - - $replace = array( "", - $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="",$body="") - { - if($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."\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; - } - 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"; - - $headers .= "\r\n"; - - // set the read timeout if needed - if ($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") - if(preg_match("/^\r?\n$/", $currentHeader) ) - break; - - if(!$this->_tried_digest && preg_match("/^WWW-Authenticate: Digest (.*)/", $currentHeader, $matches)) - { - // SJM - we got a Digest challenge. Try to respond... - - $digestheader = $matches[1]; - - preg_match("/nonce=\"(.*?)\"/", $digestheader, $matches); - $nonce = $matches[1]; - - preg_match("/realm=\"(.*?)\"/", $digestheader, $matches); - $realm = $matches[1]; - - $cnonce = md5(microtime()); - - $a1 = $this->user . ":" . $realm . ":" . $this->pass; - $a2 = $http_method . ":" . $url; - - $ha1 = md5($a1); - $ha2 = md5($a2); - - $response = md5($ha1 . ":" . $nonce . ":00000001:" . $cnonce . ":auth:" . $ha2); - - $auth = 'Digest username="' . $this->user . '", '; - $auth .= 'realm="' . $realm . '", '; - $auth .= 'nonce="' . $nonce . '", '; - $auth .= 'uri="' . $url . '", '; - $auth .= 'response="' . $response . '", '; - $auth .= 'algorithm="MD5", '; - $auth .= 'cnonce="' . $cnonce . '", '; - $auth .= 'nc=00000001, '; - $auth .= 'qop="auth"'; - - // SJM - treat Digest challenge as a redirect. set flag so we don't keep retrying. - - $this->_tried_digest = true; - - $this->rawheaders["Authorization"]=$auth . "\r\n"; - $this->user = ""; - $this->pass = ""; - - $this->_redirectaddr = $URI_PARTS['scheme'] . '://' . $this->host . $url; - } - - // if a header begins with Location: or URI:, set the redirect - if(preg_match("/^(Location:|URI:)/i",$currentHeader)) - { - // get URL portion of the redirect - preg_match("/^(Location:|URI:)\s+(.*)/",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; - } - - # $results = fread($fp, $this->maxlength); - $results = ""; - while ( $data = fread($fp, $this->maxlength) ) { - $results .= $data; - if ( - strlen($results) > $this->maxlength ) { - break; - } - } - - // 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_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: _curlrequest - Purpose: go get the https data from the server using curl - Input: $url the url to fetch - $URI the full URI - $body body contents to send if any (POST) - Output: -\*======================================================================*/ - - function _curlrequest($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)) - $headers[] = "Host: ".$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.":".$this->pass); - - for($curr_header = 0; $curr_header < count($headers); $curr_header++) - $cmdline_params .= " -H \"".$headers[$curr_header]."\""; - - if(!empty($body)) - $cmdline_params .= " -d \"$body\""; - - if($this->read_timeout > 0) - $cmdline_params .= " -m ".$this->read_timeout; - - $headerfile = uniqid(time()); - - # accept self-signed certs - - // mbi: removed, as it breaks on older cURL's - //$cmdline_params .= " -k"; - - exec($this->curl_path." -D \"/tmp/$headerfile\"".$cmdline_params." ".$URI,$results,$return); - - if($return) - { - $this->error = "Error: cURL could not retrieve the document, error $return."; - return false; - } - - - $results = implode("\r\n",$results); - - $result_headers = file("/tmp/$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[$currentHeader])) - { - // get URL portion of the redirect - preg_match("/^(Location: |URI:)(.*)/",chop($result_headers[$currentHeader]),$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 = $matches[2]; - } - - if(preg_match("|^HTTP/|",$result_headers[$currentHeader])) - { - $this->response_code = $result_headers[$currentHeader]; - if(preg_match("|^HTTP/[^\s]*\s(.*?)\s|",$this->response_code, $match)) - { - $this->status= $match[1]; - } - } - $this->headers[] = $result_headers[$currentHeader]; - } - - // 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_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 = $results; - - unlink("/tmp/$headerfile"); - - return true; - } - -/*======================================================================*\ - Function: setcookies() - Purpose: set cookies for a redirection -\*======================================================================*/ - - function setcookies() - { - for($x=0; $xheaders); $x++) - { - if(preg_match("/^set-cookie:[\s]+([^=]+)=([^;]+)/i", $this->headers[$x],$match)) - $this->cookies[$match[1]] = $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; - } - - $this->status = 0; - - if($this->_scheme == "https") - { - $host = "ssl://" . $host; - } - - if($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($formfiles, "array"); - - if (count($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; - } -} - -?> diff --git a/magpierss/rss_cache.inc b/magpierss/rss_cache.inc deleted file mode 100644 index b8d436cd..00000000 --- a/magpierss/rss_cache.inc +++ /dev/null @@ -1,200 +0,0 @@ - - * Version: 0.51 - * License: GPL - * - * The lastest version of MagpieRSS can be obtained from: - * http://magpierss.sourceforge.net - * - * For questions, help, comments, discussion, etc., please join the - * Magpie mailing list: - * http://lists.sourceforge.net/lists/listinfo/magpierss-general - * - */ - -class RSSCache { - var $BASE_CACHE = './cache'; // where the cache files are stored - var $MAX_AGE = 3600; // when are files stale, default one hour - var $ERROR = ""; // accumulate error messages - - function RSSCache ($base='', $age='') { - if ( $base ) { - $this->BASE_CACHE = $base; - } - if ( $age ) { - $this->MAX_AGE = $age; - } - - // attempt to make the cache directory - if ( ! file_exists( $this->BASE_CACHE ) ) { - $status = @mkdir( $this->BASE_CACHE, 0755 ); - - // if make failed - if ( ! $status ) { - $this->error( - "Cache couldn't make dir '" . $this->BASE_CACHE . "'." - ); - } - } - } - -/*=======================================================================*\ - Function: set - Purpose: add an item to the cache, keyed on url - Input: url from wich the rss file was fetched - Output: true on sucess -\*=======================================================================*/ - function set ($url, $rss) { - $this->ERROR = ""; - $cache_file = $this->file_name( $url ); - $fp = @fopen( $cache_file, 'w' ); - - if ( ! $fp ) { - $this->error( - "Cache unable to open file for writing: $cache_file" - ); - return 0; - } - - - $data = $this->serialize( $rss ); - fwrite( $fp, $data ); - fclose( $fp ); - - return $cache_file; - } - -/*=======================================================================*\ - Function: get - Purpose: fetch an item from the cache - Input: url from wich the rss file was fetched - Output: cached object on HIT, false on MISS -\*=======================================================================*/ - function get ($url) { - $this->ERROR = ""; - $cache_file = $this->file_name( $url ); - - if ( ! file_exists( $cache_file ) ) { - $this->debug( - "Cache doesn't contain: $url (cache file: $cache_file)" - ); - return 0; - } - - $fp = @fopen($cache_file, 'r'); - if ( ! $fp ) { - $this->error( - "Failed to open cache file for reading: $cache_file" - ); - return 0; - } - - if ($filesize = filesize($cache_file) ) { - $data = fread( $fp, filesize($cache_file) ); - $rss = $this->unserialize( $data ); - - return $rss; - } - - return 0; - } - -/*=======================================================================*\ - Function: check_cache - Purpose: check a url for membership in the cache - and whether the object is older then MAX_AGE (ie. STALE) - Input: url from wich the rss file was fetched - Output: cached object on HIT, false on MISS -\*=======================================================================*/ - function check_cache ( $url ) { - $this->ERROR = ""; - $filename = $this->file_name( $url ); - - if ( file_exists( $filename ) ) { - // find how long ago the file was added to the cache - // and whether that is longer then MAX_AGE - $mtime = filemtime( $filename ); - $age = time() - $mtime; - if ( $this->MAX_AGE > $age ) { - // object exists and is current - return 'HIT'; - } - else { - // object exists but is old - return 'STALE'; - } - } - else { - // object does not exist - return 'MISS'; - } - } - - function cache_age( $cache_key ) { - $filename = $this->file_name( $url ); - if ( file_exists( $filename ) ) { - $mtime = filemtime( $filename ); - $age = time() - $mtime; - return $age; - } - else { - return -1; - } - } - -/*=======================================================================*\ - Function: serialize -\*=======================================================================*/ - function serialize ( $rss ) { - return serialize( $rss ); - } - -/*=======================================================================*\ - Function: unserialize -\*=======================================================================*/ - function unserialize ( $data ) { - return unserialize( $data ); - } - -/*=======================================================================*\ - Function: file_name - Purpose: map url to location in cache - Input: url from wich the rss file was fetched - Output: a file name -\*=======================================================================*/ - function file_name ($url) { - $filename = md5( $url ); - return join( DIRECTORY_SEPARATOR, array( $this->BASE_CACHE, $filename ) ); - } - -/*=======================================================================*\ - Function: error - Purpose: register error -\*=======================================================================*/ - function error ($errormsg, $lvl=E_USER_WARNING) { - // append PHP's error message if track_errors enabled - if ( isset($php_errormsg) ) { - $errormsg .= " ($php_errormsg)"; - } - $this->ERROR = $errormsg; - if ( MAGPIE_DEBUG ) { - trigger_error( $errormsg, $lvl); - } - else { - error_log( $errormsg, 0); - } - } - - function debug ($debugmsg, $lvl=E_USER_NOTICE) { - if ( MAGPIE_DEBUG ) { - $this->error("MagpieRSS [debug] $debugmsg", $lvl); - } - } - -} - -?> diff --git a/magpierss/rss_fetch.inc b/magpierss/rss_fetch.inc deleted file mode 100644 index 695d3b69..00000000 --- a/magpierss/rss_fetch.inc +++ /dev/null @@ -1,462 +0,0 @@ - - * License: GPL - * - * The lastest version of MagpieRSS can be obtained from: - * http://magpierss.sourceforge.net - * - * For questions, help, comments, discussion, etc., please join the - * Magpie mailing list: - * magpierss-general@lists.sourceforge.net - * - */ - -// Setup MAGPIE_DIR for use on hosts that don't include -// the current path in include_path. -// with thanks to rajiv and smarty -if (!defined('DIR_SEP')) { - define('DIR_SEP', DIRECTORY_SEPARATOR); -} - -if (!defined('MAGPIE_DIR')) { - define('MAGPIE_DIR', dirname(__FILE__) . DIR_SEP); -} - -require_once( MAGPIE_DIR . 'rss_parse.inc' ); -require_once( MAGPIE_DIR . 'rss_cache.inc' ); - -// for including 3rd party libraries -define('MAGPIE_EXTLIB', MAGPIE_DIR . 'extlib' . DIR_SEP); -require_once( MAGPIE_EXTLIB . 'Snoopy.class.inc'); - - -/* - * CONSTANTS - redefine these in your script to change the - * behaviour of fetch_rss() currently, most options effect the cache - * - * MAGPIE_CACHE_ON - Should Magpie cache parsed RSS objects? - * For me a built in cache was essential to creating a "PHP-like" - * feel to Magpie, see rss_cache.inc for rationale - * - * - * MAGPIE_CACHE_DIR - Where should Magpie cache parsed RSS objects? - * This should be a location that the webserver can write to. If this - * directory does not already exist Mapie will try to be smart and create - * it. This will often fail for permissions reasons. - * - * - * MAGPIE_CACHE_AGE - How long to store cached RSS objects? In seconds. - * - * - * MAGPIE_CACHE_FRESH_ONLY - If remote fetch fails, throw error - * instead of returning stale object? - * - * MAGPIE_DEBUG - Display debugging notices? - * -*/ - - -/*=======================================================================*\ - Function: fetch_rss: - Purpose: return RSS object for the give url - maintain the cache - Input: url of RSS file - Output: parsed RSS object (see rss_parse.inc) - - NOTES ON CACHEING: - If caching is on (MAGPIE_CACHE_ON) fetch_rss will first check the cache. - - NOTES ON RETRIEVING REMOTE FILES: - If conditional gets are on (MAGPIE_CONDITIONAL_GET_ON) fetch_rss will - return a cached object, and touch the cache object upon recieving a - 304. - - NOTES ON FAILED REQUESTS: - If there is an HTTP error while fetching an RSS object, the cached - version will be return, if it exists (and if MAGPIE_CACHE_FRESH_ONLY is off) -\*=======================================================================*/ - -define('MAGPIE_VERSION', '0.72'); - -$MAGPIE_ERROR = ""; - -function fetch_rss ($url) { - // initialize constants - init(); - - if ( !isset($url) ) { - error("fetch_rss called without a url"); - return false; - } - - // if cache is disabled - if ( !MAGPIE_CACHE_ON ) { - // fetch file, and parse it - $resp = _fetch_remote_file( $url ); - if ( is_success( $resp->status ) ) { - return _response_to_rss( $resp ); - } - else { - error("Failed to fetch $url and cache is off"); - return false; - } - } - // else cache is ON - else { - // Flow - // 1. check cache - // 2. if there is a hit, make sure its fresh - // 3. if cached obj fails freshness check, fetch remote - // 4. if remote fails, return stale object, or error - - $cache = new RSSCache( MAGPIE_CACHE_DIR, MAGPIE_CACHE_AGE ); - - if (MAGPIE_DEBUG and $cache->ERROR) { - debug($cache->ERROR, E_USER_WARNING); - } - - - $cache_status = 0; // response of check_cache - $request_headers = array(); // HTTP headers to send with fetch - $rss = 0; // parsed RSS object - $errormsg = 0; // errors, if any - - // store parsed XML by desired output encoding - // as character munging happens at parse time - $cache_key = $url . MAGPIE_OUTPUT_ENCODING; - - if (!$cache->ERROR) { - // return cache HIT, MISS, or STALE - $cache_status = $cache->check_cache( $cache_key); - } - - // if object cached, and cache is fresh, return cached obj - if ( $cache_status == 'HIT' ) { - $rss = $cache->get( $cache_key ); - if ( isset($rss) and $rss ) { - // should be cache age - $rss->from_cache = 1; - if ( MAGPIE_DEBUG > 1) { - debug("MagpieRSS: Cache HIT", E_USER_NOTICE); - } - return $rss; - } - } - - // else attempt a conditional get - - // setup headers - if ( $cache_status == 'STALE' ) { - $rss = $cache->get( $cache_key ); - if ( $rss and $rss->etag and $rss->last_modified ) { - $request_headers['If-None-Match'] = $rss->etag; - $request_headers['If-Last-Modified'] = $rss->last_modified; - } - } - - $resp = _fetch_remote_file( $url, $request_headers ); - - if (isset($resp) and $resp) { - if ($resp->status == '304' ) { - // we have the most current copy - if ( MAGPIE_DEBUG > 1) { - debug("Got 304 for $url"); - } - // reset cache on 304 (at minutillo insistent prodding) - $cache->set($cache_key, $rss); - return $rss; - } - elseif ( is_success( $resp->status ) ) { - $rss = _response_to_rss( $resp ); - if ( $rss ) { - if (MAGPIE_DEBUG > 1) { - debug("Fetch successful"); - } - // add object to cache - $cache->set( $cache_key, $rss ); - return $rss; - } - } - else { - $errormsg = "Failed to fetch $url "; - if ( $resp->status == '-100' ) { - $errormsg .= "(Request timed out after " . MAGPIE_FETCH_TIME_OUT . " seconds)"; - } - elseif ( $resp->error ) { - # compensate for Snoopy's annoying habbit to tacking - # on '\n' - $http_error = substr($resp->error, 0, -2); - $errormsg .= "(HTTP Error: $http_error)"; - } - else { - $errormsg .= "(HTTP Response: " . $resp->response_code .')'; - } - } - } - else { - $errormsg = "Unable to retrieve RSS file for unknown reasons."; - } - - // else fetch failed - - // attempt to return cached object - if ($rss) { - if ( MAGPIE_DEBUG ) { - debug("Returning STALE object for $url"); - } - return $rss; - } - - // else we totally failed - error( $errormsg ); - - return false; - - } // end if ( !MAGPIE_CACHE_ON ) { -} // end fetch_rss() - -/*=======================================================================*\ - Function: error - Purpose: set MAGPIE_ERROR, and trigger error -\*=======================================================================*/ - -function error ($errormsg, $lvl=E_USER_WARNING) { - global $MAGPIE_ERROR; - - // append PHP's error message if track_errors enabled - if ( isset($php_errormsg) ) { - $errormsg .= " ($php_errormsg)"; - } - if ( $errormsg ) { - $errormsg = "MagpieRSS: $errormsg"; - $MAGPIE_ERROR = $errormsg; - trigger_error( $errormsg, $lvl); - } -} - -function debug ($debugmsg, $lvl=E_USER_NOTICE) { - trigger_error("MagpieRSS [debug] $debugmsg", $lvl); -} - -/*=======================================================================*\ - Function: magpie_error - Purpose: accessor for the magpie error variable -\*=======================================================================*/ -function magpie_error ($errormsg="") { - global $MAGPIE_ERROR; - - if ( isset($errormsg) and $errormsg ) { - $MAGPIE_ERROR = $errormsg; - } - - return $MAGPIE_ERROR; -} - -/*=======================================================================*\ - Function: _fetch_remote_file - Purpose: retrieve an arbitrary remote file - Input: url of the remote file - headers to send along with the request (optional) - Output: an HTTP response object (see Snoopy.class.inc) -\*=======================================================================*/ -function _fetch_remote_file ($url, $headers = "" ) { - // Snoopy is an HTTP client in PHP - $client = new Snoopy(); - $client->agent = MAGPIE_USER_AGENT; - $client->read_timeout = MAGPIE_FETCH_TIME_OUT; - $client->use_gzip = MAGPIE_USE_GZIP; - if (is_array($headers) ) { - $client->rawheaders = $headers; - } - - @$client->fetch($url); - return $client; - -} - -/*=======================================================================*\ - Function: _response_to_rss - Purpose: parse an HTTP response object into an RSS object - Input: an HTTP response object (see Snoopy) - Output: parsed RSS object (see rss_parse) -\*=======================================================================*/ -function _response_to_rss ($resp) { - $rss = new MagpieRSS( $resp->results, MAGPIE_OUTPUT_ENCODING, MAGPIE_INPUT_ENCODING, MAGPIE_DETECT_ENCODING ); - - // if RSS parsed successfully - if ( $rss and !$rss->ERROR) { - - // find Etag, and Last-Modified - foreach($resp->headers as $h) { - // 2003-03-02 - Nicola Asuni (www.tecnick.com) - fixed bug "Undefined offset: 1" - if (strpos($h, ": ")) { - list($field, $val) = explode(": ", $h, 2); - } - else { - $field = $h; - $val = ""; - } - - if ( $field == 'ETag' ) { - $rss->etag = $val; - } - - if ( $field == 'Last-Modified' ) { - $rss->last_modified = $val; - } - } - - return $rss; - } // else construct error message - else { - $errormsg = "Failed to parse RSS file."; - - if ($rss) { - $errormsg .= " (" . $rss->ERROR . ")"; - } - error($errormsg); - - return false; - } // end if ($rss and !$rss->error) -} - -/*=======================================================================*\ - Function: init - Purpose: setup constants with default values - check for user overrides -\*=======================================================================*/ -function init () { - if ( defined('MAGPIE_INITALIZED') ) { - return; - } - else { - define('MAGPIE_INITALIZED', true); - } - - if ( !defined('MAGPIE_CACHE_ON') ) { - define('MAGPIE_CACHE_ON', true); - } - - if ( !defined('MAGPIE_CACHE_DIR') ) { - define('MAGPIE_CACHE_DIR', './cache'); - } - - if ( !defined('MAGPIE_CACHE_AGE') ) { - define('MAGPIE_CACHE_AGE', 60*60); // one hour - } - - if ( !defined('MAGPIE_CACHE_FRESH_ONLY') ) { - define('MAGPIE_CACHE_FRESH_ONLY', false); - } - - if ( !defined('MAGPIE_OUTPUT_ENCODING') ) { - define('MAGPIE_OUTPUT_ENCODING', 'ISO-8859-1'); - } - - if ( !defined('MAGPIE_INPUT_ENCODING') ) { - define('MAGPIE_INPUT_ENCODING', null); - } - - if ( !defined('MAGPIE_DETECT_ENCODING') ) { - define('MAGPIE_DETECT_ENCODING', true); - } - - if ( !defined('MAGPIE_DEBUG') ) { - define('MAGPIE_DEBUG', 0); - } - - if ( !defined('MAGPIE_USER_AGENT') ) { - $ua = 'MagpieRSS/'. MAGPIE_VERSION . ' (+http://magpierss.sf.net'; - - if ( MAGPIE_CACHE_ON ) { - $ua = $ua . ')'; - } - else { - $ua = $ua . '; No cache)'; - } - - if ( defined('MAGPIE_USER_AGENT_EXT') ) { - $ua = $ua . MAGPIE_USER_AGENT_EXT; - } - - define('MAGPIE_USER_AGENT', $ua); - } - - if ( !defined('MAGPIE_FETCH_TIME_OUT') ) { - define('MAGPIE_FETCH_TIME_OUT', 5); // 5 second timeout - } - - // use gzip encoding to fetch rss files if supported? - if ( !defined('MAGPIE_USE_GZIP') ) { - define('MAGPIE_USE_GZIP', true); - } -} - -// NOTE: the following code should really be in Snoopy, or at least -// somewhere other then rss_fetch! - -/*=======================================================================*\ - HTTP STATUS CODE PREDICATES - These functions attempt to classify an HTTP status code - based on RFC 2616 and RFC 2518. - - All of them take an HTTP status code as input, and return true or false - - All this code is adapted from LWP's HTTP::Status. -\*=======================================================================*/ - - -/*=======================================================================*\ - Function: is_info - Purpose: return true if Informational status code -\*=======================================================================*/ -function is_info ($sc) { - return $sc >= 100 && $sc < 200; -} - -/*=======================================================================*\ - Function: is_success - Purpose: return true if Successful status code -\*=======================================================================*/ -function is_success ($sc) { - return $sc >= 200 && $sc < 300; -} - -/*=======================================================================*\ - Function: is_redirect - Purpose: return true if Redirection status code -\*=======================================================================*/ -function is_redirect ($sc) { - return $sc >= 300 && $sc < 400; -} - -/*=======================================================================*\ - Function: is_error - Purpose: return true if Error status code -\*=======================================================================*/ -function is_error ($sc) { - return $sc >= 400 && $sc < 600; -} - -/*=======================================================================*\ - Function: is_client_error - Purpose: return true if Error status code, and its a client error -\*=======================================================================*/ -function is_client_error ($sc) { - return $sc >= 400 && $sc < 500; -} - -/*=======================================================================*\ - Function: is_client_error - Purpose: return true if Error status code, and its a server error -\*=======================================================================*/ -function is_server_error ($sc) { - return $sc >= 500 && $sc < 600; -} - -?> diff --git a/magpierss/rss_parse.inc b/magpierss/rss_parse.inc deleted file mode 100644 index 01104831..00000000 --- a/magpierss/rss_parse.inc +++ /dev/null @@ -1,999 +0,0 @@ - -* @version 0.8 -* @license GPL -* -*/ - -define('RSS', 'RSS'); -define('ATOM', 'Atom'); - -function _convert_entities ($string) { - # Source: http://www.w3.org/TR/REC-html40/sgml/entities.html - $html_entities = array( - " ", "¡", "¢", "£", "¤", "¥", "¦", "§", "¨", "©", - "ª", "«", "¬", "­", "®", "¯", "°", "±", "²", "³", - "´", "µ", "¶", "·", "¸", "¹", "º", "»", "¼", "½", - "¾", "¿", "À", "Á", "Â", "Ã", "Ä", "Å", "Æ", "Ç", - "È", "É", "Ê", "Ë", "Ì", "Í", "Î", "Ï", "Ð", "Ñ", - "Ò", "Ó", "Ô", "Õ", "Ö", "×", "Ø", "Ù", "Ú", "Û", - "Ü", "Ý", "Þ", "ß", "à", "á", "â", "ã", "ä", "å", - "æ", "ç", "è", "é", "ê", "ë", "ì", "í", "î", "ï", - "ð", "ñ", "ò", "ó", "ô", "õ", "ö", "÷", "ø", "ù", - "ú", "û", "ü", "ý", "þ", "ÿ",); - $numeric_entities = array( - " ", "¡", "¢", "£", "¤", "¥", "¦", "§", "¨", "©", - "ª", "«", "¬", "­", "®", "¯", "°", "±", "²", "³", - "´", "µ", "¶", "·", "¸", "¹", "º", "»", "¼", "½", - "¾", "¿", "À", "Á", "Â", "Ã", "Ä", "Å", "Æ", "Ç", - "È", "É", "Ê", "Ë", "Ì", "Í", "Î", "Ï", "Ð", "Ñ", - "Ò", "Ó", "Ô", "Õ", "Ö", "×", "Ø", "Ù", "Ú", "Û", - "Ü", "Ý", "Þ", "ß", "à", "á", "â", "ã", "ä", "å", - "æ", "ç", "è", "é", "ê", "ë", "ì", "í", "î", "ï", - "ð", "ñ", "ò", "ó", "ô", "õ", "ö", "÷", "ø", "ù", - "ú", "û", "ü", "ý", "þ", "ÿ"); - return str_replace($html_entities, $numeric_entities, $string); -} - - - -require_once (MAGPIE_DIR . 'rss_utils.inc'); - -/** -* Hybrid parser, and object, takes RSS as a string and returns a simple object. -* -* see: rss_fetch.inc for a simpler interface with integrated caching support -* -*/ -class MagpieRSS { - var $parser; - - var $current_item = array(); // item currently being parsed - var $items = array(); // collection of parsed items - var $channel = array(); // hash of channel fields - var $textinput = array(); - var $image = array(); - var $feed_type; - var $feed_version; - var $encoding = ''; // output encoding of parsed rss - - var $_source_encoding = ''; // only set if we have to parse xml prolog - - var $ERROR = ""; - var $WARNING = ""; - - // define some constants - - var $_ATOM_CONTENT_CONSTRUCTS = array( - 'content', 'summary', 'title', /* common */ - 'info', 'tagline', 'copyright', /* Atom 0.3 */ - 'rights', 'subtitle', /* Atom 1.0 */ - ); - var $_XHTML_CONTENT_CONSTRUCTS = array('body', 'div'); - var $_KNOWN_ENCODINGS = array('UTF-8', 'US-ASCII', 'ISO-8859-1'); - - // parser variables, useless if you're not a parser, treat as private - var $stack = array(); // parser stack - var $inchannel = false; - var $initem = false; - - var $incontent = array(); // non-empty if in namespaced XML content field - var $exclude_top = false; // true when Atom 1.0 type="xhtml" - - var $intextinput = false; - var $inimage = false; - var $current_namespace = false; - - /** - * Set up XML parser, parse source, and return populated RSS object.. - * - * @param string $source string containing the RSS to be parsed - * - * NOTE: Probably a good idea to leave the encoding options alone unless - * you know what you're doing as PHP's character set support is - * a little weird. - * - * NOTE: A lot of this is unnecessary but harmless with PHP5 - * - * - * @param string $output_encoding output the parsed RSS in this character - * set defaults to ISO-8859-1 as this is PHP's - * default. - * - * NOTE: might be changed to UTF-8 in future - * versions. - * - * @param string $input_encoding the character set of the incoming RSS source. - * Leave blank and Magpie will try to figure it - * out. - * - * - * @param bool $detect_encoding if false Magpie won't attempt to detect - * source encoding. (caveat emptor) - * - */ - function MagpieRSS ($source, $output_encoding='ISO-8859-1', - $input_encoding=null, $detect_encoding=true) - { - # if PHP xml isn't compiled in, die - # - if (!function_exists('xml_parser_create')) { - $this->error( "Failed to load PHP's XML Extension. " . - "http://www.php.net/manual/en/ref.xml.php", - E_USER_ERROR ); - } - - list($parser, $source) = $this->create_parser($source, - $output_encoding, $input_encoding, $detect_encoding); - - - if (!is_resource($parser)) { - $this->error( "Failed to create an instance of PHP's XML parser. " . - "http://www.php.net/manual/en/ref.xml.php", - E_USER_ERROR ); - } - - - $this->parser = $parser; - - # pass in parser, and a reference to this object - # setup handlers - # - xml_set_object( $this->parser, $this ); - xml_set_element_handler($this->parser, - 'feed_start_element', 'feed_end_element' ); - - xml_set_character_data_handler( $this->parser, 'feed_cdata' ); - - $source=str_replace("<","<",$source); - $source=str_replace(">",">",$source); - $source=str_replace("&","&",$source); - - $status = xml_parse( $this->parser, $source ); - - # try to force convert everything to UTF-8 and parse again - # to salvage at least some data from the feed - if (! $status) { - $errorcode = xml_get_error_code( $this->parser ); - if ( $errorcode != XML_ERROR_NONE ) { - - xml_parser_free( $this->parser ); - - if (preg_match('/<\?xml.*?encoding="([^ ]+)".*?\?>/', - $source, $matches)) { - - $enc = $matches[1]; - } else { - $enc = mb_detect_encoding($string); - } - - # try fix XML, pass 1 - - $source = mb_convert_encoding($source, "UTF-8", $enc); - - list($parser, $source) = $this->create_parser($source, - $output_encoding, $input_encoding, $detect_encoding); - - $this->parser = $parser; - - xml_set_object( $this->parser, $this ); - xml_set_element_handler($this->parser, - 'feed_start_element', 'feed_end_element' ); - - xml_set_character_data_handler( $this->parser, 'feed_cdata' ); - - $status = xml_parse( $this->parser, $source); - - # try to fix XML, pass 2 - - if (! $status) { - $errorcode = xml_get_error_code( $this->parser ); - if ( $errorcode != XML_ERROR_NONE ) { - - $source = _convert_entities($source); - - list($parser, $source) = $this->create_parser($source, - $output_encoding, $input_encoding, $detect_encoding); - - $this->parser = $parser; - - xml_set_object( $this->parser, $this ); - xml_set_element_handler($this->parser, - 'feed_start_element', 'feed_end_element' ); - - xml_set_character_data_handler( $this->parser, 'feed_cdata' ); - - $status = xml_parse( $this->parser, $source); - - } - } - } - } - - if (! $status ) { - $errorcode = xml_get_error_code( $this->parser ); - if ( $errorcode != XML_ERROR_NONE ) { - $xml_error = xml_error_string( $errorcode ); - $error_line = xml_get_current_line_number($this->parser); - $error_col = xml_get_current_column_number($this->parser); - $errormsg = "$xml_error at line $error_line, column $error_col"; - - $this->error( $errormsg ); - } - } - - xml_parser_free( $this->parser ); - - $this->normalize(); - } - - function feed_start_element($p, $element, &$attrs) { - $el = $element = strtolower($element); - $attrs = array_change_key_case($attrs, CASE_LOWER); - - // check for a namespace, and split if found - // Don't munge content tags - if ( empty($this->incontent) ) { - $ns = false; - if ( strpos( $element, ':' ) ) { - list($ns, $el) = split( ':', $element, 2); - } - if ( $ns and $ns != 'rdf' ) { - $this->current_namespace = $ns; - } - } - - # if feed type isn't set, then this is first element of feed - # identify feed from root element - # - if (!isset($this->feed_type) ) { - if ( $el == 'rdf' ) { - $this->feed_type = RSS; - $this->feed_version = '1.0'; - } - elseif ( $el == 'rss' ) { - $this->feed_type = RSS; - $this->feed_version = $attrs['version']; - } - elseif ( $el == 'feed' ) { - $this->feed_type = ATOM; - if ($attrs['xmlns'] == 'http://www.w3.org/2005/Atom') { // Atom 1.0 - $this->feed_version = '1.0'; - } - else { // Atom 0.3, probably. - $this->feed_version = $attrs['version']; - } - $this->inchannel = true; - } - return; - } - - // if we're inside a namespaced content construct, treat tags as text - if ( !empty($this->incontent) ) - { - if ((count($this->incontent) > 1) or !$this->exclude_top) { - // if tags are inlined, then flatten - $attrs_str = join(' ', - array_map('map_attrs', - array_keys($attrs), - array_values($attrs) ) - ); - - if (strlen($attrs_str) > 0) { $attrs_str = ' '.$attrs_str; } - - $this->append_content( "<{$element}{$attrs_str}>" ); - } - array_push($this->incontent, $el); // stack for parsing content XML - } - - elseif ( $el == 'channel' ) { - $this->inchannel = true; - } - - elseif ($el == 'item' or $el == 'entry' ) - { - $this->initem = true; - if ( isset($attrs['rdf:about']) ) { - $this->current_item['about'] = $attrs['rdf:about']; - } - } - - // if we're in the default namespace of an RSS feed, - // record textinput or image fields - elseif ( - $this->feed_type == RSS and - $this->current_namespace == '' and - $el == 'textinput' ) - { - $this->intextinput = true; - } - - elseif ( - $this->feed_type == RSS and - $this->current_namespace == '' and - $el == 'image' ) - { - $this->inimage = true; - } - - // set stack[0] to current element - else { - // Atom support many links per containing element. - // Magpie treats link elements of type rel='alternate' - // as being equivalent to RSS's simple link element. - - $atom_link = false; - if ($this->feed_type == ATOM and $el == 'link') { - $atom_link = true; - if (isset($attrs['rel']) and $attrs['rel'] != 'alternate') { - $el = $el . "_" . $attrs['rel']; // pseudo-element names for Atom link elements - } - } - # handle atom content constructs - elseif ( $this->feed_type == ATOM and in_array($el, $this->_ATOM_CONTENT_CONSTRUCTS) ) - { - // avoid clashing w/ RSS mod_content - if ($el == 'content' ) { - $el = 'atom_content'; - } - - // assume that everything accepts namespaced XML - // (that will pass through some non-validating feeds; - // but so what? this isn't a validating parser) - $this->incontent = array(); - array_push($this->incontent, $el); // start a stack - - if ( isset($attrs['type']) and trim(strtolower($attrs['type']))=='xhtml') { - $this->exclude_top = true; - } else { - $this->exclude_top = false; - } - } - # Handle inline XHTML body elements --CWJ - elseif (($this->current_namespace=='xhtml' or - (isset($attrs['xmlns']) and $attrs['xmlns'] == 'http://www.w3.org/1999/xhtml')) - and in_array($el, $this->_XHTML_CONTENT_CONSTRUCTS) ) - { - $this->current_namespace = 'xhtml'; - $this->incontent = array(); - array_push($this->incontent, $el); // start a stack - $this->exclude_top = false; - } - - array_unshift($this->stack, $el); - $elpath = join('_', array_reverse($this->stack)); - - $n = $this->element_count($elpath); - $this->element_count($elpath, $n+1); - - if ($n > 0) { - array_shift($this->stack); - array_unshift($this->stack, $el.'#'.($n+1)); - $elpath = join('_', array_reverse($this->stack)); - } - - // this makes the baby Jesus cry, but we can't do it in normalize() - // because we've made the element name for Atom links unpredictable - // by tacking on the relation to the end. -CWJ - if ($atom_link and isset($attrs['href'])) { - $this->append($elpath, $attrs['href']); - } - - // add attributes - if (count($attrs) > 0) { - $this->append($elpath.'@', join(',', array_keys($attrs))); - foreach ($attrs as $attr => $value) { - $this->append($elpath.'@'.$attr, $value); - } - } - } - } - - - - function feed_cdata ($p, $text) { - - if ($this->incontent) { - $this->append_content( $text ); - } - else { - $current_el = join('_', array_reverse($this->stack)); - $this->append($current_el, $text); - } - } - - function feed_end_element ($p, $el) { - $el = strtolower($el); - - if ( $this->incontent ) { - $opener = array_pop($this->incontent); - - // Don't get bamboozled by namespace voodoo - if (strpos($el, ':')) { list($ns, $closer) = split(':', $el); } - else { $ns = false; $closer = $el; } - - // Don't get bamboozled by our munging of , either - if ($this->feed_type == ATOM and $closer == 'content') { - $closer = 'atom_content'; - } - - // balance tags properly - // note: i don't think this is actually neccessary - if ($opener != $closer) { - array_push($this->incontent, $opener); - $this->append_content("<$el />"); - } elseif ($this->incontent) { // are we in the content construct still? - if ((count($this->incontent) > 1) or !$this->exclude_top) { - $this->append_content(""); - } - } else { // shift the opening of the content construct off the normal stack - array_shift( $this->stack ); - } - } - elseif ( $el == 'item' or $el == 'entry' ) - { - $this->items[] = $this->current_item; - $this->current_item = array(); - $this->initem = false; - - $this->current_category = 0; - } - elseif ($this->feed_type == RSS and $this->current_namespace == '' and $el == 'textinput' ) - { - $this->intextinput = false; - } - elseif ($this->feed_type == RSS and $this->current_namespace == '' and $el == 'image' ) - { - $this->inimage = false; - } - elseif ($el == 'channel' or $el == 'feed' ) - { - $this->inchannel = false; - } - else { - array_shift( $this->stack ); - } - - if ( !$this->incontent ) { // Don't munge the namespace after finishing with elements in namespaced content constructs -CWJ - $this->current_namespace = false; - } - } - - function concat (&$str1, $str2="") { - if (!isset($str1) ) { - $str1=""; - } - $str1 .= $str2; - } - - function append_content($text) { - if ( $this->initem ) { - if ($this->current_namespace) { - $this->concat( $this->current_item[$this->current_namespace][ reset($this->incontent) ], $text ); - } else { - $this->concat( $this->current_item[ reset($this->incontent) ], $text ); - } - } - elseif ( $this->inchannel ) { - if ($this->current_namespace) { - $this->concat( $this->channel[$this->current_namespace][ reset($this->incontent) ], $text ); - } else { - $this->concat( $this->channel[ reset($this->incontent) ], $text ); - } - } - } - - // smart append - field and namespace aware - function append($el, $text) { - if (!$el) { - return; - } - if ( $this->current_namespace ) - { - if ( $this->initem ) { - $this->concat( - $this->current_item[ $this->current_namespace ][ $el ], $text); - } - elseif ($this->inchannel) { - $this->concat( - $this->channel[ $this->current_namespace][ $el ], $text ); - } - elseif ($this->intextinput) { - $this->concat( - $this->textinput[ $this->current_namespace][ $el ], $text ); - } - elseif ($this->inimage) { - $this->concat( - $this->image[ $this->current_namespace ][ $el ], $text ); - } - } - else { - if ( $this->initem ) { - $this->concat( - $this->current_item[ $el ], $text); - } - elseif ($this->intextinput) { - $this->concat( - $this->textinput[ $el ], $text ); - } - elseif ($this->inimage) { - $this->concat( - $this->image[ $el ], $text ); - } - elseif ($this->inchannel) { - $this->concat( - $this->channel[ $el ], $text ); - } - - } - } - - // smart count - field and namespace aware - function element_count ($el, $set = NULL) { - if (!$el) { - return; - } - if ( $this->current_namespace ) - { - if ( $this->initem ) { - if (!is_null($set)) { $this->current_item[ $this->current_namespace ][ $el.'#' ] = $set; } - $ret = (isset($this->current_item[ $this->current_namespace ][ $el.'#' ]) ? - $this->current_item[ $this->current_namespace ][ $el.'#' ] : 0); - } - elseif ($this->inchannel) { - if (!is_null($set)) { $this->channel[ $this->current_namespace ][ $el.'#' ] = $set; } - $ret = (isset($this->channel[ $this->current_namespace][ $el.'#' ]) ? - $this->channel[ $this->current_namespace][ $el.'#' ] : 0); - } - } - else { - if ( $this->initem ) { - if (!is_null($set)) { $this->current_item[ $el.'#' ] = $set; } - $ret = (isset($this->current_item[ $el.'#' ]) ? - $this->current_item[ $el.'#' ] : 0); - } - elseif ($this->inchannel) { - if (!is_null($set)) {$this->channel[ $el.'#' ] = $set; } - $ret = (isset($this->channel[ $el.'#' ]) ? - $this->channel[ $el.'#' ] : 0); - } - } - return $ret; - } - - function normalize_enclosure (&$source, $from, &$dest, $to, $i) { - $id_from = $this->element_id($from, $i); - $id_to = $this->element_id($to, $i); - if (isset($source["{$id_from}@"])) { - foreach (explode(',', $source["{$id_from}@"]) as $attr) { - if ($from=='link_enclosure' and $attr=='href') { // from Atom - $dest["{$id_to}@url"] = $source["{$id_from}@{$attr}"]; - $dest["{$id_to}"] = $source["{$id_from}@{$attr}"]; - } - elseif ($from=='enclosure' and $attr=='url') { // from RSS - $dest["{$id_to}@href"] = $source["{$id_from}@{$attr}"]; - $dest["{$id_to}"] = $source["{$id_from}@{$attr}"]; - } - else { - $dest["{$id_to}@{$attr}"] = $source["{$id_from}@{$attr}"]; - } - } - } - } - - function normalize_atom_person (&$source, $person, &$dest, $to, $i) { - $id = $this->element_id($person, $i); - $id_to = $this->element_id($to, $i); - - // Atom 0.3 <=> Atom 1.0 - if ($this->feed_version >= 1.0) { $used = 'uri'; $norm = 'url'; } - else { $used = 'url'; $norm = 'uri'; } - - if (isset($source["{$id}_{$used}"])) { - $dest["{$id_to}_{$norm}"] = $source["{$id}_{$used}"]; - } - - // Atom to RSS 2.0 and Dublin Core - // RSS 2.0 person strings should be valid e-mail addresses if possible. - if (isset($source["{$id}_email"])) { - $rss_author = $source["{$id}_email"]; - } - if (isset($source["{$id}_name"])) { - $rss_author = $source["{$id}_name"] - . (isset($rss_author) ? " <$rss_author>" : ''); - } - if (isset($rss_author)) { - $source[$id] = $rss_author; // goes to top-level author or contributor - $dest[$id_to] = $rss_author; // goes to dc:creator or dc:contributor - } - } - - // Normalize Atom 1.0 and RSS 2.0 categories to Dublin Core... - function normalize_category (&$source, $from, &$dest, $to, $i) { - $cat_id = $this->element_id($from, $i); - $dc_id = $this->element_id($to, $i); - - // first normalize category elements: Atom 1.0 <=> RSS 2.0 - if ( isset($source["{$cat_id}@term"]) ) { // category identifier - $source[$cat_id] = $source["{$cat_id}@term"]; - } elseif ( $this->feed_type == RSS ) { - $source["{$cat_id}@term"] = $source[$cat_id]; - } - - if ( isset($source["{$cat_id}@scheme"]) ) { // URI to taxonomy - $source["{$cat_id}@domain"] = $source["{$cat_id}@scheme"]; - } elseif ( isset($source["{$cat_id}@domain"]) ) { - $source["{$cat_id}@scheme"] = $source["{$cat_id}@domain"]; - } - - // Now put the identifier into dc:subject - $dest[$dc_id] = $source[$cat_id]; - } - - // ... or vice versa - function normalize_dc_subject (&$source, $from, &$dest, $to, $i) { - $dc_id = $this->element_id($from, $i); - $cat_id = $this->element_id($to, $i); - - $dest[$cat_id] = $source[$dc_id]; // RSS 2.0 - $dest["{$cat_id}@term"] = $source[$dc_id]; // Atom 1.0 - } - - // simplify the logic for normalize(). Makes sure that count of elements and - // each of multiple elements is normalized properly. If you need to mess - // with things like attributes or change formats or the like, pass it a - // callback to handle each element. - function normalize_element (&$source, $from, &$dest, $to, $via = NULL) { - if (isset($source[$from]) or isset($source["{$from}#"])) { - if (isset($source["{$from}#"])) { - $n = $source["{$from}#"]; - $dest["{$to}#"] = $source["{$from}#"]; - } - else { $n = 1; } - - for ($i = 1; $i <= $n; $i++) { - if (isset($via)) { // custom callback for ninja attacks - $this->{$via}($source, $from, $dest, $to, $i); - } - else { // just make it the same - $from_id = $this->element_id($from, $i); - $to_id = $this->element_id($to, $i); - $dest[$to_id] = $source[$from_id]; - } - } - } - } - - function normalize () { - // if atom populate rss fields and normalize 0.3 and 1.0 feeds - if ( $this->is_atom() ) { - // Atom 1.0 elements <=> Atom 0.3 elements (Thanks, o brilliant wordsmiths of the Atom 1.0 standard!) - if ($this->feed_version < 1.0) { - $this->normalize_element($this->channel, 'tagline', $this->channel, 'subtitle'); - $this->normalize_element($this->channel, 'copyright', $this->channel, 'rights'); - $this->normalize_element($this->channel, 'modified', $this->channel, 'updated'); - } else { - $this->normalize_element($this->channel, 'subtitle', $this->channel, 'tagline'); - $this->normalize_element($this->channel, 'rights', $this->channel, 'copyright'); - $this->normalize_element($this->channel, 'updated', $this->channel, 'modified'); - } - $this->normalize_element($this->channel, 'author', $this->channel['dc'], 'creator', 'normalize_atom_person'); - $this->normalize_element($this->channel, 'contributor', $this->channel['dc'], 'contributor', 'normalize_atom_person'); - - // Atom elements to RSS elements - $this->normalize_element($this->channel, 'subtitle', $this->channel, 'description'); - - if ( isset($this->channel['logo']) ) { - $this->normalize_element($this->channel, 'logo', $this->image, 'url'); - $this->normalize_element($this->channel, 'link', $this->image, 'link'); - $this->normalize_element($this->channel, 'title', $this->image, 'title'); - } - - for ( $i = 0; $i < count($this->items); $i++) { - $item = $this->items[$i]; - - // Atom 1.0 elements <=> Atom 0.3 elements - if ($this->feed_version < 1.0) { - $this->normalize_element($item, 'modified', $item, 'updated'); - $this->normalize_element($item, 'issued', $item, 'published'); - } else { - $this->normalize_element($item, 'updated', $item, 'modified'); - $this->normalize_element($item, 'published', $item, 'issued'); - } - - // "If an atom:entry element does not contain - // atom:author elements, then the atom:author elements - // of the contained atom:source element are considered - // to apply. In an Atom Feed Document, the atom:author - // elements of the containing atom:feed element are - // considered to apply to the entry if there are no - // atom:author elements in the locations described - // above." - if (!isset($item["author#"])) { - if (isset($item["source_author#"])) { // from aggregation source - $source = $item; - $author = "source_author"; - } elseif (isset($this->channel["author#"])) { // from containing feed - $source = $this->channel; - $author = "author"; - } - - $item["author#"] = $source["{$author}#"]; - for ($au = 1; $au <= $item["author#"]; $au++) { - $id_to = $this->element_id('author', $au); - $id_from = $this->element_id($author, $au); - - $item[$id_to] = $source[$id_from]; - foreach (array('name', 'email', 'uri', 'url') as $what) { - if (isset($source["{$id_from}_{$what}"])) { - $item["{$id_to}_{$what}"] = $source["{$id_from}_{$what}"]; - } - } - } - } - - // Atom elements to RSS elements - $this->normalize_element($item, 'author', $item['dc'], 'creator', 'normalize_atom_person'); - $this->normalize_element($item, 'contributor', $item['dc'], 'contributor', 'normalize_atom_person'); - $this->normalize_element($item, 'summary', $item, 'description'); - $this->normalize_element($item, 'atom_content', $item['content'], 'encoded'); - $this->normalize_element($item, 'link_enclosure', $item, 'enclosure', 'normalize_enclosure'); - - // Categories - if ( isset($item['category#']) ) { // Atom 1.0 categories to dc:subject and RSS 2.0 categories - $this->normalize_element($item, 'category', $item['dc'], 'subject', 'normalize_category'); - } - elseif ( isset($item['dc']['subject#']) ) { // dc:subject to Atom 1.0 and RSS 2.0 categories - $this->normalize_element($item['dc'], 'subject', $item, 'category', 'normalize_dc_subject'); - } - - // Normalized item timestamp - $atom_date = (isset($item['published']) ) ? $item['published'] : $item['updated']; - if ( $atom_date ) { - $epoch = @parse_w3cdtf($atom_date); - if ($epoch and $epoch > 0) { - $item['date_timestamp'] = $epoch; - } - } - - $this->items[$i] = $item; - } - } - elseif ( $this->is_rss() ) { - // RSS elements to Atom elements - $this->normalize_element($this->channel, 'description', $this->channel, 'tagline'); // Atom 0.3 - $this->normalize_element($this->channel, 'description', $this->channel, 'subtitle'); // Atom 1.0 (yay wordsmithing!) - $this->normalize_element($this->image, 'url', $this->channel, 'logo'); - - for ( $i = 0; $i < count($this->items); $i++) { - $item = $this->items[$i]; - - // RSS elements to Atom elements - $this->normalize_element($item, 'description', $item, 'summary'); - $this->normalize_element($item['content'], 'encoded', $item, 'atom_content'); - $this->normalize_element($item, 'enclosure', $item, 'link_enclosure', 'normalize_enclosure'); - - // Categories - if ( isset($item['category#']) ) { // RSS 2.0 categories to dc:subject and Atom 1.0 categories - $this->normalize_element($item, 'category', $item['dc'], 'subject', 'normalize_category'); - } - elseif ( isset($item['dc']['subject#']) ) { // dc:subject to Atom 1.0 and RSS 2.0 categories - $this->normalize_element($item['dc'], 'subject', $item, 'category', 'normalize_dc_subject'); - } - - // Normalized item timestamp - if ( $this->is_rss() == '1.0' and isset($item['dc']['date']) ) { - $epoch = @parse_w3cdtf($item['dc']['date']); - if ($epoch and $epoch > 0) { - $item['date_timestamp'] = $epoch; - } - } - elseif ( isset($item['pubdate']) ) { - $epoch = @strtotime($item['pubdate']); - if ($epoch > 0) { - $item['date_timestamp'] = $epoch; - } - } - - $this->items[$i] = $item; - } - } - } - - - function is_rss () { - if ( $this->feed_type == RSS ) { - return $this->feed_version; - } - else { - return false; - } - } - - function is_atom() { - if ( $this->feed_type == ATOM ) { - return $this->feed_version; - } - else { - return false; - } - } - - /** - * return XML parser, and possibly re-encoded source - * - */ - function create_parser($source, $out_enc, $in_enc, $detect) { - if ( substr(phpversion(),0,1) == 5) { - $parser = $this->php5_create_parser($in_enc, $detect); - } - else { - list($parser, $source) = $this->php4_create_parser($source, $in_enc, $detect); - } - if ($out_enc) { - $this->encoding = $out_enc; - xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, $out_enc); - } - - return array($parser, $source); - } - - /** - * Instantiate an XML parser under PHP5 - * - * PHP5 will do a fine job of detecting input encoding - * if passed an empty string as the encoding. - * - * All hail libxml2! - * - */ - function php5_create_parser($in_enc, $detect) { - // by default php5 does a fine job of detecting input encodings - if(!$detect && $in_enc) { - return xml_parser_create($in_enc); - } - else { - return xml_parser_create(''); - } - } - - /** - * Instaniate an XML parser under PHP4 - * - * Unfortunately PHP4's support for character encodings - * and especially XML and character encodings sucks. As - * long as the documents you parse only contain characters - * from the ISO-8859-1 character set (a superset of ASCII, - * and a subset of UTF-8) you're fine. However once you - * step out of that comfy little world things get mad, bad, - * and dangerous to know. - * - * The following code is based on SJM's work with FoF - * @see http://minutillo.com/steve/weblog/2004/6/17/php-xml-and-character-encodings-a-tale-of-sadness-rage-and-data-loss - * - */ - function php4_create_parser($source, $in_enc, $detect) { - if ( !$detect ) { - return array(xml_parser_create($in_enc), $source); - } - - if (!$in_enc) { - if (preg_match('//m', $source, $m)) { - $in_enc = strtoupper($m[1]); - $this->source_encoding = $in_enc; - } - else { - $in_enc = 'UTF-8'; - } - } - - if ($this->known_encoding($in_enc)) { - return array(xml_parser_create($in_enc), $source); - } - - // the dectected encoding is not one of the simple encodings PHP knows - - // attempt to use the iconv extension to - // cast the XML to a known encoding - // @see http://php.net/iconv - - if (function_exists('iconv')) { - $encoded_source = iconv($in_enc,'UTF-8', $source); - if ($encoded_source) { - return array(xml_parser_create('UTF-8'), $encoded_source); - } - } - - // iconv didn't work, try mb_convert_encoding - // @see http://php.net/mbstring - if(function_exists('mb_convert_encoding')) { - $encoded_source = mb_convert_encoding($source, 'UTF-8', $in_enc ); - if ($encoded_source) { - return array(xml_parser_create('UTF-8'), $encoded_source); - } - } - - // else - $this->error("Feed is in an unsupported character encoding. ($in_enc) " . - "You may see strange artifacts, and mangled characters.", - E_USER_NOTICE); - - return array(xml_parser_create(), $source); - } - - function known_encoding($enc) { - $enc = strtoupper($enc); - if ( in_array($enc, $this->_KNOWN_ENCODINGS) ) { - return $enc; - } - else { - return false; - } - } - - function error ($errormsg, $lvl=E_USER_WARNING) { - // append PHP's error message if track_errors enabled - if ( isset($php_errormsg) ) { - $errormsg .= " ($php_errormsg)"; - } - if ( MAGPIE_DEBUG ) { - trigger_error( $errormsg, $lvl); - } - else { - error_log( $errormsg, 0); - } - - $notices = E_USER_NOTICE|E_NOTICE; - if ( $lvl&$notices ) { - $this->WARNING = $errormsg; - } else { - $this->ERROR = $errormsg; - } - } - - // magic ID function for multiple elemenets. - // can be called as static MagpieRSS::element_id() - function element_id ($el, $counter) { - return $el . (($counter > 1) ? '#'.$counter : ''); - } -} // end class RSS - -function map_attrs($k, $v) { - return "$k=\"$v\""; -} - -// patch to support medieval versions of PHP4.1.x, -// courtesy, Ryan Currie, ryan@digibliss.com - -if (!function_exists('array_change_key_case')) { - define("CASE_UPPER",1); - define("CASE_LOWER",0); - - - function array_change_key_case($array,$case=CASE_LOWER) { - if ($case==CASE_LOWER) $cmd='strtolower'; - elseif ($case==CASE_UPPER) $cmd='strtoupper'; - foreach($array as $key=>$value) { - $output[$cmd($key)]=$value; - } - return $output; - } - -} - -?> diff --git a/magpierss/rss_utils.inc b/magpierss/rss_utils.inc deleted file mode 100644 index 86fbdc82..00000000 --- a/magpierss/rss_utils.inc +++ /dev/null @@ -1,67 +0,0 @@ - - * Version: 0.51 - * License: GPL - * - * The lastest version of MagpieRSS can be obtained from: - * http://magpierss.sourceforge.net - * - * For questions, help, comments, discussion, etc., please join the - * Magpie mailing list: - * magpierss-general@lists.sourceforge.net - */ - - -/*======================================================================*\ - Function: parse_w3cdtf - Purpose: parse a W3CDTF date into unix epoch - - NOTE: http://www.w3.org/TR/NOTE-datetime -\*======================================================================*/ - -function parse_w3cdtf ( $date_str ) { - - # regex to match wc3dtf - $pat = "/(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2})(:(\d{2}))?(?:([-+])(\d{2}):?(\d{2})|(Z))?/"; - - if ( preg_match( $pat, $date_str, $match ) ) { - list( $year, $month, $day, $hours, $minutes, $seconds) = - array( $match[1], $match[2], $match[3], $match[4], $match[5], $match[7]); - - # calc epoch for current date assuming GMT - $epoch = gmmktime( $hours, $minutes, $seconds, $month, $day, $year); - - $offset = 0; - if ( $match[11] == 'Z' ) { - # zulu time, aka GMT - } - else { - list( $tz_mod, $tz_hour, $tz_min ) = - array( $match[8], $match[9], $match[10]); - - # zero out the variables - if ( ! $tz_hour ) { $tz_hour = 0; } - if ( ! $tz_min ) { $tz_min = 0; } - - $offset_secs = (($tz_hour*60)+$tz_min)*60; - - # is timezone ahead of GMT? then subtract offset - # - if ( $tz_mod == '+' ) { - $offset_secs = $offset_secs * -1; - } - - $offset = $offset_secs; - } - $epoch = $epoch + $offset; - return $epoch; - } - else { - return -1; - } -} - -?> diff --git a/update_daemon.php b/update_daemon.php index 35177edd..b2bae956 100644 --- a/update_daemon.php +++ b/update_daemon.php @@ -8,8 +8,6 @@ declare(ticks = 1); - define('MAGPIE_CACHE_DIR', '/var/tmp/magpie-ttrss-cache-daemon'); - define('SIMPLEPIE_CACHE_DIR', '/var/tmp/simplepie-ttrss-cache-daemon'); define('DISABLE_SESSIONS', true); require_once "version.php"; @@ -34,7 +32,6 @@ require_once "db.php"; require_once "db-prefs.php"; require_once "functions.php"; - require_once "magpierss/rss_fetch.inc"; error_reporting(DEFAULT_ERROR_LEVEL); diff --git a/update_daemon2.php b/update_daemon2.php index 777b835a..a8eb48d4 100644 --- a/update_daemon2.php +++ b/update_daemon2.php @@ -34,7 +34,7 @@ require_once "db.php"; require_once "db-prefs.php"; require_once "functions.php"; - require_once "magpierss/rss_fetch.inc"; + require_once "lib/magpierss/rss_fetch.inc"; error_reporting(DEFAULT_ERROR_LEVEL); diff --git a/update_daemon_loop.php b/update_daemon_loop.php index 56b3839a..064a904d 100644 --- a/update_daemon_loop.php +++ b/update_daemon_loop.php @@ -34,7 +34,7 @@ require_once "db.php"; require_once "db-prefs.php"; require_once "functions.php"; - require_once "magpierss/rss_fetch.inc"; + require_once "lib/magpierss/rss_fetch.inc"; error_reporting(DEFAULT_ERROR_LEVEL);