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<?php
// $Id: ezmlm.php,v 1.6 2007-10-01 15:54:54 alexandre_tb Exp $
//
// ezmlm.php - ezmlm-php v2.0
// --------------------------------------------------------------
// As the site that ezmlm-php was developed for grew, and grew
// the old system used had to be bandaid fixed more, and more
// because the site started moving to an object oriented design
// for all the backend systems and ezmlm wasn't playing nice
// with the new design. So, ezmlm was redesigned too, and here
// it is.
//
// It may look a little more confusing if you're not used to
// working with objects but it actually is much more effiecient
// and organized in it's new incarnation.
// Simply edit the variables in the ezmlm-php constructor below
// just like you would with the old ezmlm-php-config.php file,
// if you're unsure howto do this check out the file CONFIG,
// then check the USAGE file for how you should include and use
// the new classes if you are integrating ezmlm-php into your
// site.
// (SEARCH FOR: USER-CONFIG to find where to edit.)
// --------------------------------------------------------------

require_once("ezmlm-errors.def");
require_once("ezmlm-parser.php");
require_once("ezmlm-threads.php");
require_once("ezmlm-listinfo.php");
require_once("ezmlm-msgdisplay.php");
require_once("ezmlm-repondre.php");
require_once("ezmlm-author.php");

$GLOBALS['mois'] = array ('Jan', 'Fév', 'Mars', 'Avril', 'Mai', 'Juin', 'Juil', 'Août', 'Sept', 'Oct', 'Nov', 'Dèc') ;

// CLASS: ezmlm_php
// the base class, contains common functions and the config
class ezmlm_php {
        var $listdir;           // the root directory of the list
        var $listname;          // the list address upto the @
        var $listdomain;        // the domain for the list

        var $tempdir;           // a directory in which the webserver can write cache files

        var $sendheaders;       // send generic page headers
        var $sendbody;          // send generic body definitions
        var $sendfooters;       // send generic page footers
        var $includebefore;     // a file to include before the content
        var $includeafter;      // a file to include after the content

        var $href;              // what to add before the '?param=value' in links

        var $prefertype;        // what mime type do you prefer?
        var $showheaders;       // what headers should we show?

        var $msgtemplate;       // the template for displaying messages (see the file TEMPLATE)

        var $tablecolours;      // what are the colours for the table rows?

        var $thread_subjlen;    // the maximum length of subjects in the thread view (0 = no limit)

        var $forcehref;         // force the base of makelink();

        // --------- END USER CONFIGURATION ---------

        // Internal variables
        var $action = '';
        var $actionargs;

        function ezmlm_php() {
                
                // USER-CONFIG section
                // these variables act the same way ezmlm-php-config.php did in the first release
                // simply edit these variables to match your setup
                                
                $this->listdir          = "";
                $this->listname         = "";
                $this->listdomain       = "";
        
                $this->tempdir          = "";

                $this->sendheaders      = TRUE;
                $this->sendbody         = TRUE;
                $this->sendfooters      = TRUE;
                $this->includebefore    = "";
                $this->includeafter     = "";

                $this->href             = "";

                $this->prefertype       = "text/html";
                $this->showheaders      = array(
                                                "to",
                                                "from",
                                                "subject",
                                                "date"
                                        );
        $this->header_en_francais = array ('to' => 'A', 
                                            'from' => 'De',
                                            'subject' => 'Sujet',
                                            'date' => 'Date') ;

                $this->msgtemplate      = "<pre><ezmlm-body></pre>"; // if blank it will use the internal one

                $this->tablecolours     = array(
                                                // delete the next line if you don't want alternating colours
                                                "#eeeeee",
                                                "#ffffff"
                                        );

                $this->thread_subjlen   = 55;

                // --- STOP EDITING HERE ---
                // some sanity checking
                if ((!is_dir($this->listdir . "/archive")) or
                    (!is_dir($this->listdir . "/archive/authors")) or
                    (!is_dir($this->listdir . "/archive/threads")) or
                    (!is_dir($this->listdir . "/archive/subjects"))) {
            return false ;
                        /*$this->error(EZMLM_INVALID_DIR,TRUE);*/
                }
        }

        function set_action($action) {
                if (is_array($action)) { $this->error(EZMLM_INVALID_SYNTAX,TRUE); }
                $this->action = $action;
        }
        function set_actionargs($actionargs) {
                if ($this->action == '') { $this->error(EZMLM_INVALID_SYNTAX,TRUE); }
                $this->actionargs = $actionargs;
        }

        function run() {
                if ($this->action == '') { $this->error(EZMLM_INVALID_SYNTAX,TRUE); }

                if ($this->sendheaders) { $this->sendheaders(); }
                if ($this->sendbody) { $this->sendbody(); }
                if ($this->includebefore != '') { @include_once($this->includebefore); }

                switch ($this->action) {
                        case "list_info":
                                $info = new ezmlm_listinfo();
                                $info->display();
                                break;
                        case "show_msg":
                                if (count($this->actionargs) < 2) {
                                        $this->error(EZMLM_INVALID_SYNTAX,TRUE);
                                }
                                $show_msg = new ezmlm_msgdisplay();
                                $show_msg->display($this->actionargs[0] . "/" . $this->actionargs[1]);
                                break;
                        case "show_threads":
                                $threads = new ezmlm_threads();
                                $threads->load($this->actionargs[0]);
                                break;
                        case "show_author_msgs":
                                $author = new ezmlm_author();
                                $author->display($this->actionargs[0]);
                                break;
                }

                if ($this->includeafter != '') { @include_once($this->includeafter); }
                if ($this->sendfooters) { $this->sendfooters(); }
        }

        function sendheaders() {
                print "<html><head>\n";
                print "<style type=\"text/css\">\n";
                print "<!--\n";
                print ".heading { font-family: helvetica; font-size: 16px; line-height: 18px; font-weight: bold; }\n";
                print "//-->\n";
                print "</style>\n";
                print "</head>\n";
        }

        function sendbody() {
                print "<body>\n";
        }

        function sendfooters() {
                print "</body>\n";
                print "</html>\n";
        }
                                

        // begin common functions

        // makehash - generates an author hash using the included makehash program
        function makehash($str) {
         $str = preg_replace ('/>/', '', $str) ;
        $handle = popen ('/usr/local/lib/safe_mode/makehash \''.$str.'\'', 'r') ;
        $hash = fread ($handle, 256) ;
        pclose ($handle) ;
                return $hash;
        }

        // makelink - writes the <a href=".."> tag
        function makelink($params,$text) {
                if ($this->forcehref != "") {
                        $basehref = $this->forcehref;
                } else {
                        $basehref = preg_replace('/^(.*)\?.*/', '\\1', $_SERVER['REQUEST_URI']);
                }
                $link = '<a href="'. $basehref . '&amp;' . $params . '">' . $text . '</a>';
                return $link;
        }

        // md5_of_file - provides wrapper function that emulates md5_file for PHP < 4.2.0
        function md5_of_file($file) {
                if (function_exists("md5_file")) { // php >= 4.2.0
                        return md5_file($file);
                } else {
                        if (is_file($file)) {
                                $fd = fopen($file, "rb");
                                $filecontents = fread($fd, filesize($file));
                                fclose ($fd);
                                return md5($filecontents);
                        } else {
                                return FALSE;
                        }
                }
        }

        // protect_email - protects email address turns user@domain.com into user@d...
        function protect_email($str,$short = FALSE) {
                if (preg_match("/[a-zA-Z0-9\-\.]\@[a-zA-Z0-9\-\.]*\./", $str)) {
                        $outstr = preg_replace("/([a-zA-Z0-9\-\.]*\@)([a-zA-Z0-9\-\.])[a-zA-Z0-9\-\.]*\.[a-zA-Z0-9\-\.]*/","\\1\\2...",$str);
                        $outstr = preg_replace("/\</", '&lt;', $outstr);
                        $outstr = preg_replace("/\>/", '&gt;', $outstr);
                } else {
                        $outstr = $str;
                }

                if ($short) {
                        $outstr = preg_replace("/&lt;.*&gt;/", '', $outstr);
                        $outstr = preg_replace("/[\"']/", '', $outstr);
                }
                return trim($outstr);
        }

        // cleanup_body: sortta like protect_email, just for message bodies
        function cleanup_body($str) {
                        $outstr = preg_replace("/([a-zA-Z0-9\-\.]*\@)([a-zA-Z0-9\-\.])[a-zA-Z0-9\-\.]*\.[a-zA-Z0-9\-\.]*/","\\1\\2...",$str);
                        return $outstr;
        }

        function error($def, $critical = FALSE) {
                global $ezmlm_error;

                print "\n\n";
                print "<table width=600 border=1 cellpadding=3 cellspacing=0>\n";
                print "<tr bgcolor=\"#cccccc\"><td><b>EZMLM-PHP Error: " . $ezmlm_error[$def]['title'] . "</td></tr>\n";
                print "<tr bgcolor=\"#aaaaaa\"><td>" . $ezmlm_error[$def]['body'] . "</td></tr>\n";
                print "</table>\n\n";

                if ($critical) { die; }
        }
    /**
     *  Parse une chaime et supprime les problème d'encodage de type ISO-4 ...
     *
     * @return string
     */
    
    function decode_iso ($chaine) {
        
        if (preg_match ('/windows-[0-9][0-9][0-9][0-9]/i', $chaine, $nombre)) {
            $reg_exp = $nombre[0] ;
            $chaine = str_replace(' ', '', $chaine);
        } else {
            $reg_exp = 'ISO-8859-15?' ;
        }
        if (preg_match ('/UTF/i', $chaine)) $reg_exp = 'UTF-8' ;
        preg_match_all ("/=\?$reg_exp\?(Q|B)\?(.*?)\?=/i", $chaine, $match, PREG_PATTERN_ORDER)  ;
        for ($i = 0; $i < count ($match[0]); $i++ ) {
            
                if (strtoupper($match[1][$i]) == 'Q') {
                    $decode = quoted_printable_decode ($match[2][$i]) ;
                } elseif ($match[1][$i] == 'B') {
                    $decode = base64_decode ($match[2][$i]) ;
                }
                $decode = preg_replace ("/_/", " ", $decode) ;
            if ($reg_exp == 'UTF-8') {
                $decode = utf8_decode ($decode) ;
            } 
            $chaine = str_replace ($match[0][$i], $decode, $chaine) ;
        }
        return $chaine ;
    }
    
    /**
     *
     *
     * @return
     */
    
    function date_francaise ($date_mail) {
        $date_mail = preg_replace ('/\(?CEST\)?/', '', $date_mail) ;
        $numero_mois = date('m ', strtotime($date_mail)) - 1 ;
        $date = date ('d ', strtotime($date_mail)).$GLOBALS['mois'][$numero_mois] ; // Le jour et le mois
        $date .= date(' Y ', strtotime($date_mail)) ; // l'année
        if (date('a', strtotime($date_mail)) == 'pm') {
            $date .= (int) date('g', strtotime($date_mail)) + 12 ;  // Les heures
        } else {
            $date .= date('g', strtotime($date_mail)) ;
        }
        $date .= date(':i', strtotime($date_mail)) ;    // Les minutes
        return $date ;
    }
    
    /** 
     * Cette fonction renvoie le prefixe, cad 0 ou rien
     * d un nom de message, ex : pour 09, on renvoie 0
     * pour 12 on renvoie rien
     */
    function prefixe_nom_message($nom) {
        if (preg_match ('/0([1-9][0-9]*)/', $nom, $match)) {
                        $nom_fichier = $match[1];
                        return '0' ;
                } else {
                        return '' ;
                }
    }
}

//
// --- END OF CLASS DEFINITION ---
//

// FIN