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<?php
// $Id: ezmlm-threads.php,v 1.5.4.3 2008-11-19 09:30:18 aperonnet Exp $
//
// ezmlm-threads.php - ezmlm-php v2.0
// --------------------------------------------------------------
// Builds, maintains & displays thread caches
// These cache files live in $ezmlm->tmpdir and are serialized
// php objects that can be unserialized and displayed easily
// --------------------------------------------------------------
require_once("ezmlm.php");
require_once("ezmlm-parser.php");
require_once ('ezmlm-langue-fr.php');
// CLASS: ezmlm_threads will build, maintain & display thread files (even if a thread is only 1 msg)
class ezmlm_threads extends ezmlm_php {
// load: this is the main function that should be called.
// it first checks to see if the cache files are stale, if they are it calls build
// other wise it loads them and calls display
function load($month) {
if (!is_dir($this->tempdir . "/ezmlm-php-" . $this->listname)) {
$checksum = $this->tempdir . "/ezmlm-php-" . $this->listname . "-" . $month . "-" . "checksum";
} else {
$checksum = $this->tempdir . "/ezmlm-php-" . $this->listname . "/" . $month . "-" . "checksum";
}
$md5 = '' ;
if (!is_file($checksum)) {
$this->build($month);
} else {
$fd = fopen($checksum,"r");
while (!preg_match('/^md5:/', $md5)) { $md5 = fgets($fd,4096); }
fclose($fd);
$md5 = rtrim(preg_replace('/^md5:/', '', $md5), "\n");
if ($md5 != $this->md5_of_file($this->listdir . "/archive/threads/" . $month)) {
$html .= "<!-- $md5 ne " . $this->md5_of_file($this->listdir . "/archive/threads/" . $month) . " -->\n";
$this->build($month);
}
}
$html .= $this->display($month);
return $html ;
}
// display: this loads each cache file sequentially and displays the messages in them
// there is no checking of checksum's done here so load() is the preferred method to
// view the threads
function display($month) {
$seq = 0;
$html = '' ;
if (!is_dir($this->tempdir . "/ezmlm-php-" . $this->listname)) {
$cache = $this->tempdir . "/ezmlm-php-" . $this->listname . "-" . $month;
} else {
$cache = $this->tempdir . "/ezmlm-php-" . $this->listname . "/" . $month;
}
// Le lien par date et par thread
$html .= '[ '.$this->makelink('action=show_month&actionargs[]='.$month, 'par date').' ]' ;
$months = array(1 => 'January', 2 => 'February', 3 => 'March', 4 => 'April', 5 => 'May', 6 => 'June', 7 => 'July', 8 => 'August',
9 => 'September', 10 => 'October', 11 => 'November', 12 => 'December');
// remplacé par le tableau globals $mois dans ezmlm.php
$html .= '<h2>'.FIL_DE_DISCUSSION.' pour '.$GLOBALS['mois'][((int)substr($month,4,2) / 1) -1] .', ' . substr($month,0,4) . '</h2>'."\n";
$html .= '<table class="table_cadre">'."\n";
$html .= '<tr><th>Num</th><th>De</th><th>Sujet</th><th>Date</th></tr>'."\n";
$html .= '<tr><td colspan="3"><hr /></td></tr>'."\n";
$ctc = 0;
if (is_file($cache)) {
include($cache);
}
$html .= '<tr><td colspan="3"></td></tr>'."\n";
$html .= '</table>'."\n";
return $html ;
}
function thread_to_html($thread) {
$html = '';
$lastdepth = -1;
$ctc = 0 ;
$thread_curr = $thread;
$class = array ('ligne_paire', 'ligne_impaire') ;
while ($thread_curr != NULL) {
preg_match ('!/archive/([0-9]*)/([0-9]*)!', $thread_curr->file, $match) ;
if (!isset($GLOBALS['fichiers_analyses'][$match[1]][$match[2]])) {
$message = file_get_contents($this->listdir . "/archive/" . $msgdir . "/" . $msgfile) ;
$mimeDecode = new Mail_mimeDecode($message) ;
$mailDecode = $mimeDecode->decode() ;
//$msg = new ezmlm_parser();
//$msg->parse_file($this->listdir . $thread_curr->file, TRUE);
} else {
$mailDecode = $GLOBALS['fichiers_analyses'][$match[1]][$match[2]] ;
}
$actionargs = preg_split("/\//", $thread_curr->file);
$html .= '<tr class="'.$class[$ctc].'">'."\n";
$html .= '<td>'.$actionargs[2].$actionargs[3].'</td><td>';
$html .= $this->makelink('action=show_author_msgs&actionargs[]='.
$this->makehash($this->decode_iso($mailDecode->headers['from'])),$this->decode_iso($this->protect_email($mailDecode->headers['from'],TRUE)));
$html .= '</td>'."\n";
$html .= '<td><b>';
//$html .= " <a name=\"" . urlencode($thread_curr->file) . "\">"; A quoi ça sert ?
for ($i = 0; $i < $thread_curr->depth; $i++) {
$html .= " ";
}
if (($this->thread_subjlen > 0) and (strlen($this->decode_iso($mailDecode->headers['subject'])) > $this->thread_subjlen)) {
$subject = substr($this->decode_iso($mailDecode->headers['subject']), 0, ($this->thread_subjlen - 3 - ($thread_curr->depth * 2)));
$subject = $subject . "...";
} else {
$subject = $this->decode_iso($mailDecode->headers['subject']);
}
$subject = preg_replace("/\[" . $this->listname . "\]/", "", $subject);
$html .= $this->makelink("action=show_msg&actionargs[]=" . $actionargs[2] . "&actionargs[]=" . $actionargs[3], $subject);
$html .= "</b></td>\n";
$html .= '<td>' .$this->date_francaise($mailDecode->headers['date']).'</td>'."\n";
$html .= "</tr>\n";
$ctc++;
if ($ctc == count($this->tablecolours)) { $ctc = 0; }
$lastdepth = $thread_curr->depth;
$thread_curr = $thread_curr->next;
}
$html .= '<tr><td colspan="3"><hr noshade size="1" /></td></tr>'."\n";
return $html;
}
// build: takes one argument in the format YYYYMM and builds the thread cache file
// for that month if the ezmlm thread file exists. The resulting cache file is then
// stored in $this->tmpdir;
function build($month) {
if (!is_file($this->listdir . "/archive/threads/" . $month)) { return FALSE; }
if (!is_dir($this->tempdir . "/ezmlm-php-" . $this->listname)) {
$fd2 = fopen($this->tempdir . "/ezmlm-php-" . $this->listname . "-" . $month,"w+");
} else {
$fd2 = fopen($this->tempdir . "/ezmlm-php-" . $this->listname . "/" . $month,"w+");
}
fclose($fd2);
$i=0;
// ouverture du fichier thread de ezmlm
// Ils sont classés mois par mois
$fd1 = fopen($this->listdir . "/archive/threads/" . $month, "r");
while (!feof($fd1)) {
$line = fgets($fd1,4096);
if (preg_match('/^[0-9]*\:[a-z]* \[.*/', $line)) {
// valid ezmlm thread file entry
// On place dans $subjectfile le chemin vers le fichier sujet
$subjectfile = preg_replace("/^[0-9]*\:([a-z]*) \[.*/", "\\1", $line);
$subjectfile = substr($subjectfile,0,2) . '/' . substr($subjectfile,2,18);
$thread_head = NULL;
$thread_curr = NULL;
$thread_temp = NULL;
$thread_depth = 1;
if (!is_file($this->listdir . "/archive/subjects/" . $subjectfile)) { continue; }
// on ouvre le fichier sujet
// Celui-ci contient sur la première ligne le hash du sujet puis le sujet
// sur les autres lignes :
// num_message:annéemois:hash_auteur nom_auteur
$fd2 = fopen($this->listdir . "/archive/subjects/" . $subjectfile, "r");
while (!feof($fd2)) {
$line2 = fgets($fd2,4096);
if (preg_match('/^[0-9]/',$line2)) {
$msgnum = preg_replace('/^([0-9]*):.*/', '\\1', $line2);
$msgfile = $msgnum % 100;
$msgdir = (int)($msgnum / 100);
if ($msgfile < 10) { $msgfile = "0" . $msgfile; }
//$msg = new ezmlm_parser();
//$msg->parse_file_headers($this->listdir . "/archive/" . $msgdir . "/" . $msgfile, TRUE);
$message = file_get_contents($this->listdir . "/archive/" . $msgdir . "/" . $msgfile) ;
$mimeDecode = new Mail_mimeDecode($message) ;
$mailDecode = $mimeDecode->decode() ;
// On stocke le fichier analysée pour réutilisation ultàrieure
$GLOBALS['fichiers_analyses'][$msgdir][$msgfile] = $mailDecode ;
$msgid = (isset ($mailDecode->headers['message-id']) ? $mailDecode->headers['message-id'] : '');
$inreply = (isset($mailDecode->headers['in-reply-to']) ? $mailDecode->headers['in-reply-to'] : '');
$references = (isset ($mailDecode->headers['references']) ? $mailDecode->headers['references'] : '') ;
$thread_depth = 1;
if ($thread_head == NULL) {
$thread_head = new ezmlm_thread(0,'/archive/' . $msgdir . '/' . $msgfile,$msgid);
} else {
$thread_curr = new ezmlm_thread($depth,'/archive/' . $msgdir . '/' . $msgfile,$msgid);
if ($inreply != '') { $thread_curr->inreply = $inreply; }
if ($references != '') { $thread_curr->references = $references; }
$thread_head->append($thread_curr);
}
}
}
fclose($fd2);
// so now after all that mess $thread_head contains a full thread tree
// first build the depth of each message based on 'in-reply-to' and 'references'
unset($thread_temp);
$thread_temp = NULL;
$thread_curr =& $thread_head->next;
while (get_class($thread_curr) == 'ezmlm_thread') {
unset($thread_temp);
$thread_temp = NULL;
if ($thread_curr->inreply != '') { $thread_temp =& $thread_head->find_msgid($thread_curr->inreply); }
if ($thread_temp == NULL) {
if ($thread_curr->references != '') {
$refs = preg_split('/ /', $thread_curr->references);
$refs = array_pop($refs);
$thread_temp =& $thread_head->find_msgid($refs);
}
}
if ($thread_temp == NULL) {
// we couldn't find anything... set depth to 1, the default
$thread_curr->depth = 1;
} else {
// we found a reference, set it to it's depth + 1
$thread_curr->depth = $thread_temp->depth + 1;
}
$thread_curr =& $thread_curr->next;
}
// now write it to a temp file named MONTH-SEQ where seq is cronologic sequence order of the thread.
if (!is_dir($this->tempdir . "/ezmlm-php-" . $this->listname)) {
@mkdir($this->tempdir . "/ezmlm-php-" . $this->listname, 0755);
if (!is_dir($this->tempdir . "/ezmlm-php-" . $this->listname)) {
$fd2 = fopen($this->tempdir . "/ezmlm-php-" . $this->listname . "-" . $month, "a");
} else {
$fd2 = fopen($this->tempdir . "/ezmlm-php-" . $this->listname . "/" . $month, "a");
}
} else {
$fd2 = fopen($this->tempdir . "/ezmlm-php-" . $this->listname . "/" . $month, "a");
}
fputs($fd2,$this->thread_to_html($thread_head));
fclose($fd2);
}
}
// finally store our checksum
if (!is_dir($this->tempdir . "/ezmlm-php-" . $this->listname)) {
$fd2 = fopen($this->tempdir . "/ezmlm-php-" . $this->listname . "-" . $month . "-" . "checksum","w+");
} else {
$fd2 = fopen($this->tempdir . "/ezmlm-php-" . $this->listname . "/" . $month . "-" . "checksum","w+");
}
fputs($fd2,"md5:" . $this->md5_of_file($this->listdir . "/archive/threads/" . $month) . "\n");
fclose($fd2);
fclose($fd1);
return TRUE;
}
// listmessages: prints out a nice little calendar and displays the message
// totals for each month. The link jumps to the thread listing.
// On lit le repetoire archive/threads/ qui contient un fichier par moi avec tous les thread, par sujet
// Presentes comme suit
// num_thread:hash [taille_du_thread] Sujet du thread (le dernier)
// les messages sont ranges par leur numero
function listmessages() {
if (!is_dir($this->listdir . "/archive/threads/")) {
return false ;
}
$res = '<table id="petit_calendrier">'."\n";
$res .= " <tr>\n";
$res .= " <td></td>" ;
foreach ($GLOBALS['mois'] as $valeur) $res .= '<th>'.$valeur.'</th>' ;
$res .=" </tr>\n";
$res .= $this->calendrierMessage();
$res .= "</table>\n";
return $res;
/*
$threadcount = array();
$repertoire_archive = opendir($this->listdir . "/archive/");
$tableau_annee = array();
while (false !== ($item = readdir($repertoire_archive))) {
// $item contient les noms des repertoires
// on ne garde que ceux qui sont des chiffres
if (preg_match('/[0-9]+/', $item)) {
// on ouvre le fichier d index de chaque repertoire
$fichier_index = fopen($this->listdir.'/archive/'.$item.'/index', 'r');
$compteur = 0 ;
while (!feof($fichier_index)) {
// On ignore la premiere ligne
$temp = fgets($fichier_index, 4096);
// dans la seconde on recupere la date
$temp = fgets($fichier_index, 4096);
preg_match('/\t([0-9]+) ([a-zA-Z][a-zA-Z][a-zA-Z]) ([0-9][0-9][0-9][0-9])/', $temp, $match) ;
if ($match[0] != '') {
$threadmonth = date('n', strtotime($match[0])) ;
$threadyear = date('Y', strtotime($match[0])) ;
$threadcount[$threadyear][$threadmonth]++;
if (!in_array($threadyear, $tableau_annee)) array_push ($tableau_annee, $threadyear);
}
}
fclose ($fichier_index);
}
}
if (count($threadcount) == 0) return 'Il n\y a pas de messages dans les archives';
// La partie qui suit, simple, cree la table avec le nombre de message echange chaque mois
$res = '<table id="petit_calendrier">'."\n";
$res .= " <tr>\n";
$res .= " <td></td>" ;
foreach ($GLOBALS['mois'] as $valeur) $res .= '<th>'.$valeur.'</th>' ;
$res .=" </tr>\n";
arsort($tableau_annee);
foreach ($tableau_annee as $annee) {
$res .= " <tr>\n";
$res .= ' <td class="col_annee">'.$annee.'</td>';
for ($i = 1; $i <= 12; $i++) {
$res .= '<td class="mois">';
if (isset($threadcount[$annee][$i]) && $threadcount[$annee][$i] > 0) {
$res .= $this->makelink('action=show_month&actionargs[]='.$annee.($i < 10 ? '0'.$i:$i),$threadcount[$annee][$i]);
}
$res .= '</td>';
}
$res .= '</tr>'."\n";
}
$res .= "</table>\n";
return $res ;
*/
}
/*
* Cree un fichier liste.calendrierPermanent qui contient
* le nombre de message par mois pour toutes les annees
* depuis le debut de la liste sauf la derniere
*
*/
function calculeCalendrierPermanent($Annnee = '') {
$numArchive = $this->getNumArchive();
$dernierRepertoire = floor($numArchive / 100);
$threadcount = array();
$tableau_annee = array();
for ($rep_courant = $dernierRepertoire; $rep_courant >= 0; $rep_courant--) {
$fichier_index = file ($this->listdir.'/archive/'.$rep_courant.'/index', FILE_IGNORE_NEW_LINES);
// On parcours le fichier a l envers
for ($j = count($fichier_index)-1; $j >= 0; $j-=2) {
preg_match('/\t([0-9]+) ([a-zA-Z][a-zA-Z][a-zA-Z]) ([0-9][0-9][0-9][0-9])/', $fichier_index[$j], $match) ;
if ($match[0] != '') {
$threadmonth = date('n', strtotime($match[0])) ;
$threadyear = date('Y', strtotime($match[0])) ;
if ($Annnee != '') {
if ($threadyear < date('Y')) {
$sortir = true;
break;
}
} else {
if ($threadyear == date('Y')) continue;
}
$threadcount[$threadyear][$threadmonth]++;
if (!in_array($threadyear, $tableau_annee)) array_push ($tableau_annee, $threadyear);
}
}
if ($sortir) break;
}
$res = '';
arsort($tableau_annee);
foreach ($tableau_annee as $annee) {
$res .= " <tr>\n";
$res .= ' <td class="col_annee">'.$annee.'</td>';
for ($i = 1; $i <= 12; $i++) {
$res .= '<td class="mois">';
if (isset($threadcount[$annee][$i]) && $threadcount[$annee][$i] > 0) {
$res .= $this->makelink('action=show_month&actionargs[]='.$annee.($i < 10 ? '0'.$i:$i),$threadcount[$annee][$i]);
}
$res .= '</td>';
}
$res .= '</tr>'."\n";
}
return $res;
}
function ecrireFichierCalendrier() {
$html = $this->calculeCalendrierPermanent();
$f = fopen ('tmp/'.$this->listname.'.calendrier', 'w') ;
fwrite ($f, $html);
fclose($f);
return $html;
}
function calendrierMessage() {
$html = '';
// On ajoute la derniere annee
$html .= $this->calculeCalendrierPermanent(date ('Y'));
if ($this->isFichierCalendrierExiste()) {
// S il existe mais qu il est trop vieux, il faut le recalculer
if ($this->isDoitRecalculerCalendrier()) {
$annees = $this->getAnneesARecalculer();
$html .= $this->calculeCalendrierPermanent($annees);
}
$html .= file_get_contents('tmp/'.$this->listname.'.calendrier');
} else {
$html .= $this->ecrireFichierCalendrier();
}
return $html;
}
function isFichierCalendrierExiste() {
if (file_exists('tmp/'.$this->listname.'.calendrier')) {
return true;
}
return false;
}
function isDoitRecalculerCalendrier() {
if (date ('Y', fileatime('tmp/'.$this->listname.'.calendrier')) != date('Y')) return true;
return false;
}
function getAnneesARecalculer() {
// On suppose que l index de ezmlm est correct
$anneeFichierCalendrier = date ('Y', fileatime('tmp/'.$this->listname.'.calendrier'));
return $anneeFichierCalendrier + 1;
}
}
// CLASS: ezmlm-thread is a quick little class to allow us to define
// a structure of the current thread in a single-linked list.
// it's a little messy since php doesn't support pointers like C does
// so we have to use references and a head object to append to the list.
class ezmlm_thread {
var $next;
var $depth;
var $file;
var $msgid;
var $inreply;
var $references;
function append($thread) {
$thread_curr =& $this;
while ($thread_curr->next != NULL) {
$thread_curr =& $thread_curr->next;
}
$thread_curr->next = $thread;
}
function &find_msgid($msgid) {
$thread_curr =& $this;
while ($thread_curr->next != NULL) {
if (trim($thread_curr->msgid) == trim($msgid)) { return $thread_curr; }
$thread_curr =& $thread_curr->next;
}
return NULL;
}
function ezmlm_thread($depth,$file,$msgid) {
$this->depth = $depth;
$this->file = $file;
$this->msgid = $msgid;
$this->next = NULL;
}
}
?>