banana/banana.inc.php.in

   1 <?php
   2 /********************************************************************************
   3 * banana/banana.inc.php : banana main file
   4 * --------------------------
   5 *
   6 * This file is part of the banana distribution
   7 * Copyright: See COPYING files that comes with this distribution
   8 ********************************************************************************/
   9
  10 class Banana
  11 {
  12     static public $maxspool    = 3000;
  13
  14     static public $parse_hdr   = array('content-disposition', 'content-transfer-encoding',
  15                                        'content-type', 'content-id', 'date', 'followup-to',
  16                                        'from', 'message-id', 'newsgroups', 'organization',
  17                                        'references', 'subject', 'x-face', 'in-reply-to',
  18                                        'to', 'cc', 'reply-to');
  19     static public $show_hdr    = array('from', 'newsgroups', 'followup-to', 'to', 'cc', 'reply-to',
  20                                        'organization', 'date', 'references', 'in-reply-to');
  21
  22     /** Favorites MIMEtypes to use, by order for reading multipart messages
  23      */
  24     static public $body_mime   = array('text/html', 'text/plain', 'text/enriched', 'text', 'message');
  25
  26     /** Indicate wether posting attachment is allowed
  27      */
  28     static public $can_attach  = true;
  29     /** Maximum allowed file size for attachment
  30      */
  31     static public $maxfilesize = 100000;
  32     /** Indicate wether x-face should be skinned as specials data or not
  33      */
  34     static public $formatxface = true;
  35
  36     /** Regexp for selecting newsgroups to show (if empty, match all newsgroups)
  37      * ex : '^xorg\..*' for xorg.*
  38      */
  39     static public $grp_pattern = null;
  40
  41     static public $tbefore     = 5;
  42     static public $tafter      = 5;
  43     static public $tmax        = 50;
  44
  45     static public $wrap        = 78;
  46
  47     /** Match an url
  48      * Should be included in a regexp delimited using /, !, , or @ (eg: "/$url_regexp/i")
  49      * If it matches, return 3 main parts :
  50      *  \\1 and \\3 are delimiters
  51      *  \\2 is the url
  52      *
  53      * eg : preg_match("!$url_regexp!i", "[http://www.polytechnique.org]", $matches);
  54      *   $matches[1] = "["
  55      *   $matches[2] = "http://www.polytechnique.org"
  56      *   $matches[3] = "]"
  57      */
  58     static public $url_regexp  = '(["\[])?((?:[a-z]+:\/\/|www\.)(?:[\.\,\;\!]*[a-z\@0-9~%$£µ&i#\-+=_\/\?]+)+)(["\]])?';
  59
  60     /** Global headers to use for messages
  61      */
  62     static public $custom_hdr  = array('Mime-Version' => '1.0', 'User-Agent' => 'Banana @VERSION@');
  63
  64     /** News serveur to use
  65      */
  66     static public $host        = 'news://localhost:119/';
  67
  68     /** User profile
  69      */
  70     static public $profile     = Array( 'From' => 'Anonymous <anonymouse@example.com>', 'sig'  => '',
  71                                         'Organization'  => '', 'custom_hdr' => array(), 'display' => 0,
  72                                         'lastnews' => 0, 'locale'  => 'fr_FR', 'subscribe' => array());
  73
  74     static public $protocole   = null;
  75     static public $spool       = null;
  76     static public $message     = null;
  77     static public $page        = null;
  78
  79     static public $group       = null;
  80     static public $artid       = null;
  81     static public $action      = null;
  82     static public $part        = null;
  83     static public $first       = null;
  84
  85     static public $debug_nntp   = false;
  86     static public $debug_smarty = false;
  87
  88
  89     // Actions
  90     const ACTION_BOX_NEEDED = 1; // mask
  91     const ACTION_BOX_LIST   = 2;
  92     const ACTION_BOX_SUBS   = 4;
  93     const ACTION_MSG_LIST   = 3;
  94     const ACTION_MSG_READ   = 5;
  95     const ACTION_MSG_NEW    = 9;
  96     const ACTION_MSG_CANCEL = 17;
  97
  98     // Box list view
  99     const BOXES_ALL = 0;
 100     const BOXES_SUB = 1;
 101     const BOXES_NEW = 2;
 102
 103     // Spool view mode
 104     const SPOOL_ALL    = 0;
 105     const SPOOL_UNREAD = 1;
 106
 107     /** Class parameters storage
 108      */
 109     public $params;
 110
 111     /** Build the instance of Banana
 112      * This constructor only call \ref loadParams, connect to the server, and build the Smarty page
 113      * @param protocole Protocole to use
 114      */
 115     public function __construct($params = null, $protocole = 'NNTP', $pageclass = 'BananaPage')
 116     {
 117         Banana::load('text.func');
 118         if (is_null($params)) {
 119             $this->params = $_GET;
 120         } else {
 121             $this->params = $params;
 122         }
 123         $this->loadParams();
 124
 125         // connect to protocole handler
 126         Banana::load($protocole);
 127         $classname = 'Banana' . $protocole;
 128         Banana::$protocole = new $classname(Banana::$group);
 129
 130         // build the page
 131         if ($pageclass == 'BananaPage') {
 132             Banana::load('page');
 133         }
 134         Banana::$page = new $pageclass;
 135     }
 136
 137     /** Fill state vars (Banana::$group, Banana::$artid, Banana::$action, Banana;:$part, Banana::$first)
 138      */
 139     protected function loadParams()
 140     {
 141         Banana::$group = isset($this->params['group']) ? $this->params['group'] : null;
 142         Banana::$artid = isset($this->params['artid']) ? $this->params['artid'] : null;
 143         Banana::$first = isset($this->params['first']) ? $this->params['first'] : null;
 144         Banana::$part  = isset($this->params['part']) ? $this->params['part'] : 'text';
 145
 146         // Look for the action to execute
 147         if (is_null(Banana::$group)) {
 148             if (isset($this->params['action']) && $this->params['action'] == 'subscribe') {
 149                 Banana::$action = Banana::ACTION_BOX_SUBS;
 150             } else {
 151                 Banana::$action = Banana::ACTION_BOX_LIST;
 152             }
 153             return;
 154         }
 155         $action = isset($this->params['action']) ? $this->params['action'] : null;
 156         if (is_null(Banana::$artid)) {
 157             if ($action == 'new') {
 158                 Banana::$action = Banana::ACTION_MSG_NEW;
 159             } else {
 160                 Banana::$action = Banana::ACTION_MSG_LIST;
 161             }
 162             return;
 163         }
 164         switch ($action) {
 165           case 'new':
 166             Banana::$action = Banana::ACTION_MSG_NEW;
 167             return;
 168           case 'cancel':
 169             Banana::$action = Banana::ACTION_MSG_CANCEL;
 170             return;
 171           default:
 172             Banana::$action = Banana::ACTION_MSG_READ;
 173         }
 174     }
 175
 176     /** Run Banana
 177      * This function need user profile to be initialised
 178      */
 179     public function run()
 180     {
 181         // Configure locales
 182         setlocale(LC_ALL,  Banana::$profile['locale']);
 183
 184         // Check if the state is valid
 185         if (Banana::$protocole->lastErrNo()) {
 186             return Banana::$page->kill(_b_('Une erreur a été rencontrée lors de la connexion au serveur') . '<br />'
 187                                       . Banana::$protocole->lastError());
 188         }
 189         if (!Banana::$protocole->isValid()) {
 190             return Banana::$page->kill(_b_('Connexion non-valide'));
 191         }
 192         if (Banana::$action & Banana::ACTION_BOX_NEEDED) {
 193             if(isset(Banana::$grp_pattern) && !preg_match('/' . Banana::$grp_pattern . '/', $group)) {
 194                 Banana::$page->setPage('group');
 195                 return Banana::$page->kill(_b_("Ce newsgroup n'existe pas ou vous n'avez pas l'autorisation d'y accéder"));
 196             }
 197         }
 198
 199         // Dispatch to the action handlers
 200         switch (Banana::$action) {
 201           case Banana::ACTION_BOX_SUBS:
 202             $error = $this->action_subscribe();
 203             break;
 204           case Banana::ACTION_BOX_LIST:
 205             $error = $this->action_listBoxes();
 206             break;
 207           case Banana::ACTION_MSG_LIST:
 208             $error = $this->action_showThread(Banana::$group, Banana::$first);
 209             break;
 210           case Banana::ACTION_MSG_READ:
 211             $error = $this->action_showMessage(Banana::$group, Banana::$artid, Banana::$part);
 212             break;
 213           case Banana::ACTION_MSG_NEW:
 214             $error = $this->action_newMessage(Banana::$group, Banana::$artid);
 215             break;
 216           case Banana::ACTION_MSG_CANCEL:
 217             $error = $this->action_cancelMessage(Banana::$group, Banana::$artid);
 218             break;
 219           default:
 220             $error = _b_("L'action demandée n'est pas supportée par Banana");
 221         }
 222
 223         // Generate the page
 224         if (is_string($error)) {
 225             return Banana::$page->kill($error);
 226         }
 227         return Banana::$page->run();
 228     }
 229
 230     /**************************************************************************/
 231     /* actions                                                                */
 232     /**************************************************************************/
 233     protected function action_saveSubs($groups)
 234     {
 235         Banana::$profile['subscribe'] = $groups;
 236         return true;
 237     }
 238
 239     protected function action_subscribe()
 240     {
 241         Banana::$page->setPage('subscribe');
 242         if (isset($_POST['validsubs'])) {
 243             $this->action_saveSubs(array_keys($_POST['subscribe']));
 244             Banana::$page->redirect();
 245         }
 246         $groups = Banana::$protocole->getBoxList(Banana::BOXES_ALL);
 247         Banana::$page->assign('groups', $groups);
 248         return true;
 249     }
 250
 251     protected function action_listBoxes()
 252     {
 253         Banana::$page->setPage('forums');
 254         $groups    = Banana::$protocole->getBoxList(Banana::BOXES_SUB, Banana::$profile['lastnews'], true);
 255         $newgroups = Banana::$protocole->getBoxList(Banana::BOXES_NEW, Banana::$profile['lastnews'], true);
 256         Banana::$page->assign('groups', $groups);
 257         Banana::$page->assign('newgroups', $newgroups);
 258         return true;
 259     }
 260
 261     protected function action_showThread($group, $first)
 262     {
 263         Banana::$page->setPage('thread');
 264         if (!$this->loadSpool($group)) {
 265             return _b_('Impossible charger la liste des messages de ') . $group;
 266         }
 267         $groups = Banana::$protocole->getBoxList(Banana::BOXES_SUB, Banana::$profile['lastnews'], true);
 268         Banana::$page->assign('msgbypage', Banana::$tmax);
 269         Banana::$page->assign('groups', $groups);
 270         return true;
 271     }
 272
 273     protected function action_showMessage($group, $artid, $partid = 'text')
 274     {
 275         Banana::$page->setPage('message');
 276         if ($partid == 'text') {
 277             $this->loadSpool($group);
 278         }
 279         $msg =& $this->loadMessage($group, $artid);
 280         if (is_null($msg)) {
 281             $this->loadSpool($group);
 282             $this->removeMessage($group, $artid);
 283             return _b_('Le message demandé n\'existe pas. Il est possible qu\'il ait été annulé');
 284         }
 285         if ($partid == 'xface') {
 286             $msg->getXFace();
 287             exit;
 288         } elseif ($partid != 'text') {
 289             $part = $msg->getPartById($partid);
 290             if (!is_null($part)) {
 291                 $part->send(true);
 292             }
 293             $part = $msg->getFile($partid);
 294             if (!is_null($part)) {
 295                 $part->send();
 296             }
 297             exit;
 298         }
 299         $groups    = Banana::$protocole->getBoxList(Banana::BOXES_SUB, Banana::$profile['lastnews'], true);
 300         Banana::$page->assign('groups', $groups);
 301         Banana::$page->assign_by_ref('message', $msg);
 302         Banana::$page->assign('headers', Banana::$show_hdr);
 303         return true;
 304     }
 305
 306     protected function action_newMessage($group, $artid)
 307     {
 308         Banana::$page->setPage('new');
 309         if (!Banana::$protocole->canSend()) {
 310             return _b_('Vous n\'avez pas le droit de poster');
 311         }
 312         $hdrs    = Banana::$protocole->requestedHeaders();
 313         $headers = array();
 314         foreach ($hdrs as $header) {
 315             $headers[$header] = array('name' => BananaMessage::translateHeaderName($header));
 316             if (isset(Banana::$profile[$header])) {
 317                 $headers[$header]['fixed'] = Banana::$profile[$header];
 318             }
 319         }
 320         if (isset($_POST['sendmessage'])) {
 321             $hdr_values = array();
 322             foreach ($hdrs as $header) {
 323                 $hdr_values[$header] = isset($headers[$header]['fixed']) ? $headers[$header]['fixed'] : @$_POST[$header];
 324             }
 325             if ($artid) {
 326                 $old =& $this->loadMessage($group, $artid);
 327                 $hdr_values['References'] = $old->getHeaderValue('references') . $old->getHeaderValue('message-id');
 328             }
 329             $msg = null;
 330             if (empty($hdr_values['Subject'])) {
 331                 Banana::$page->trig(_b_('Le message doit avoir un sujet'));
 332             } elseif (Banana::$can_attach && isset($_FILES['attachment'])) {
 333                 $uploaded = $_FILES['attachment'];
 334                 if (!is_uploaded_file($uploaded['tmp_name'])) {
 335                     Banana::$page->trig(_b_('Une erreur est survenue lors du téléchargement du fichier'));
 336                 } else {
 337                     $msg = BananaMessage::newMessage($hdr_values, $_POST['body'], $uploaded);
 338                 }
 339             } else {
 340                 $msg = BananaMessage::newMessage($hdr_values, $_POST['body']);
 341             }
 342             if (!is_null($msg)) {
 343                 if (Banana::$protocole->send($msg)) {
 344                     Banana::$page->redirect(array('group' => $group, 'artid' => $artid));
 345                 }
 346                 Banana::$page->trig(_b_('Une erreur est survenue lors de l\'envoi du message :') . '<br />'
 347                                    . Banana::$protocole->lastError());
 348             }
 349         } else {
 350             if (!is_null($artid)) {
 351                 $msg    =& $this->loadMessage($group, $artid);
 352                 $body    = $msg->getSender() . _b_(' a écrit :') . "\n" . $msg->quote();
 353                 $subject = $msg->getHeaderValue('subject');
 354                 $headers['Subject']['user'] = 'Re: ' . preg_replace("/^re\s*:\s*/i", '', $subject);
 355                 $target  = $msg->getHeaderValue($hdrs['reply']);
 356                 if (empty($target)) {
 357                     $target = $group;
 358                 }
 359                 $headers[$hdrs['dest']]['user'] =& $target;
 360             } else {
 361                 $body    = '';
 362                 $headers[$hdrs['dest']]['user'] = $group;
 363             }
 364             if (Banana::$profile['sig']) {
 365                 $body .=  "\n\n-- \n" . Banana::$profile['sig'];
 366             }
 367             Banana::$page->assign('body', $body);
 368         }
 369
 370         Banana::$page->assign('maxfilesize', Banana::$maxfilesize);
 371         Banana::$page->assign('can_attach', Banana::$can_attach);
 372         Banana::$page->assign('headers', $headers);
 373         return true;
 374     }
 375
 376     protected function action_cancelMessage($group, $artid)
 377     {
 378         Banana::$page->setPage('cancel');
 379         $msg =& $this->loadMessage($group, $artid);
 380         if (!$msg->canCancel()) {
 381             return _b_('Vous n\'avez pas les droits suffisants pour supprimer ce message');
 382         }
 383         if (isset($_POST['cancel'])) {
 384             $this->loadSpool($group);
 385             $ndx = Banana::$spool->getNdX($id) - 1;
 386             if (!Banana::$protocole->cancel($msg)) {
 387                 return _b_('Une erreur s\'est produite lors de l\'annulation du message :') . '<br />'
 388                        . Banana::$protocole->lastError();
 389             }
 390             if ($ndx < 50) {
 391                  $ndx = 0;
 392             }
 393             $this->removeMessage($group, $artid);
 394             Banana::$page->redirect(Array('group' => $group, 'first' => $ndx));
 395         }
 396         Banana::$page->assign_by_ref('message', $msg);
 397         return true;
 398     }
 399
 400     /**************************************************************************/
 401     /* Private functions                                                      */
 402     /**************************************************************************/
 403
 404     protected function loadSpool($group)
 405     {
 406         Banana::load('spool');
 407         if (!Banana::$spool || Banana::$spool->group != $group) {
 408             if ($group == @$_SESSION['banana_group'] && isset($_SESSION['banana_spool'])) {
 409                 Banana::$spool = unserialize($_SESSION['banana_spool']);
 410             }
 411             BananaSpool::getSpool($group, Banana::$profile['lastnews']);
 412             $_SESSION['banana_group'] = $group;
 413             $_SESSION['banana_spool'] = serialize(Banana::$spool);
 414             Banana::$spool->setMode(Banana::$profile['display'] ? Banana::SPOOL_UNREAD : Banana::SPOOL_ALL);
 415         }
 416         return true;
 417     }
 418
 419     protected function &loadMessage($group, $artid)
 420     {
 421         Banana::load('message');
 422         if ($group == @$_SESSION['banana_group'] && $artid == @$_SESSION['banana_artid']
 423             && isset($_SESSION['banana_message'])) {
 424             $message = unserialize($_SESSION['banana_message']);
 425             Banana::$show_hdr = $_SESSION['banana_showhdr'];
 426         }  else {
 427             $message = Banana::$protocole->getMessage($artid);
 428             $_SESSION['banana_group'] = $group;
 429             $_SESSION['banana_artid'] = $artid;
 430             $_SESSION['banana_message'] = serialize($message);
 431             $_SESSION['banana_showhdr'] = Banana::$show_hdr;
 432         }
 433         Banana::$message =& $message;
 434         return $message;
 435     }
 436
 437     protected function removeMessage($group, $artid)
 438     {
 439         Banana::$spool->delId($artid);
 440         if ($group == $_SESSION['banana_group']) {
 441             $_SESSION['banana_spool'] = serialize(Banana::$spool);
 442             if ($artid == $_SESSION['banana_artid']) {
 443                 unset($_SESSION['banana_message']);
 444                 unset($_SESSION['banana_showhdr']);
 445                 unset($_SESSION['banana_artid']);
 446             }
 447         }
 448         return true;
 449     }
 450
 451     static private function load($file)
 452     {
 453         $file = strtolower($file) . '.inc.php';
 454         if (!@include_once dirname(__FILE__) . "/$file") {
 455             require_once $file;
 456         }
 457     }
 458 }
 459
 460 // vim:set et sw=4 sts=4 ts=4
 461 ?>