banana/nntp.inc.php

   1 <?php
   2 /********************************************************************************
   3 * banana/nntp.inc.php : NNTP protocole handler
   4 * ------------------------
   5 *
   6 * This file is part of the banana distribution
   7 * Copyright: See COPYING files that comes with this distribution
   8 ********************************************************************************/
   9
  10 require_once dirname(__FILE__) . '/banana.inc.php';
  11 require_once dirname(__FILE__) . '/message.inc.php';
  12 require_once dirname(__FILE__) . '/nntpcore.inc.php';
  13 require_once dirname(__FILE__) . '/protocoleinterface.inc.php';
  14
  15 class BananaNNTP extends BananaNNTPCore implements BananaProtocoleInterface
  16 {
  17     private $ingroup = null;
  18
  19     private $mode = null;
  20     private $boxes = null;
  21
  22     /** Build a protocole handler plugged on the given box
  23      */
  24     public function __construct()
  25     {
  26         $url = parse_url(Banana::$nntp_host);
  27         if ($url['scheme'] == 'nntps' || $url['scheme'] == 'snntp') {
  28             $url['host'] = 'ssl://' . $url['host'];
  29             if (!isset($url['port'])) {
  30                 $url['port'] = 563;
  31             }
  32         } else if (!isset($url['port'])) {
  33             $url['port'] = 119;
  34         }
  35         parent::__construct($url['host'], $url['port']);
  36         if (isset($url['user'])) {
  37             $this->authinfo($url['user'], $url['pass']);
  38         }
  39     }
  40
  41     /** Return the descript;ion of the current box
  42      */
  43     public function getDescription()
  44     {
  45         $descs = $this->xgtitle(Banana::$group);
  46         if (isset($descs[Banana::$group])) {
  47             return trim(utf8_encode($descs[Banana::$group]));
  48         }
  49         return null;
  50     }
  51
  52     /** Return the list of the boxes
  53      * @param mode Kind of boxes to list
  54      * @param since date of last check (for new boxes and new messages)
  55      * @return Array(boxname => array(desc => boxdescripton, msgnum => number of message, unread =>number of unread messages)
  56      */
  57     public function getBoxList($mode = Banana::BOXES_ALL, $since = 0, $withstats = false)
  58     {
  59         if (!is_array($this->boxes) || $this->mode != $mode) {
  60             $descs = $this->xgtitle();
  61             if ($mode == Banana::BOXES_NEW && $since) {
  62                 $list = $this->newgroups($since);
  63             } else {
  64                 $list = $this->listGroups();
  65                 if ($mode == Banana::BOXES_SUB) {
  66                     if (is_array(Banana::$profile['subscribe'])) {
  67                         $sub = array_flip(Banana::$profile['subscribe']);
  68                     } else {
  69                         $sub = array();
  70                     }
  71                     $list = array_intersect_key($list, $sub);
  72                 }
  73             }
  74             $this->boxes = array();
  75             foreach ($list as $group=>&$infos) {
  76                 if (isset($descs[$group])) {
  77                     $desc = $descs[$group];
  78                     if (!is_utf8($desc)) {
  79                         $desc = utf8_encode($desc);
  80                     }
  81                     $this->boxes[$group] = array('desc' => $desc);
  82                 } else {
  83                     $this->boxes[$group] = array('desc' => null);
  84                 }
  85             }
  86             ksort($this->boxes);
  87         }
  88         if ($withstats) {
  89             foreach ($this->boxes as $group=>&$desc) {
  90                 list($msgnum, $first, $last, $groupname) = $this->group($group);
  91                 $this->ingroup = $group;
  92                 $new = count($this->newnews($group, $since));
  93                 $desc['msgnum'] = $msgnum;
  94                 $desc['unread'] = $new;
  95             }
  96         }
  97         return $this->boxes;
  98     }
  99
 100     /** Return a message
 101      * @param id Id of the emssage (can be either an Message-id or a message index)
 102      * @return A BananaMessage or null if the given id can't be retreived
 103      */
 104     public function &getMessage($id)
 105     {
 106         $message = null;
 107         if (is_numeric($id) && Banana::$group != $this->ingroup) {
 108             if (is_null(Banana::$spool)) {
 109                 $this->group(Banana::$group);
 110                 $this->ingroup = Banana::$group;
 111             } else {
 112                 $id = array_search($id, Banana::$spool->ids);
 113             }
 114         }
 115         $data = $this->article($id);
 116         if ($data !== false) {
 117             $message = new BananaMessage($data);
 118         }
 119         return $message;
 120     }
 121
 122     /** Return the sources of the message
 123      */
 124     public function getMessageSource($id)
 125     {
 126         if (is_numeric($id) && Banana::$group != $this->ingroup) {
 127             if (is_null(Banana::$spool)) {
 128                 $this->group(Banana::$group);
 129                 $this->ingroup = Banana::$group;
 130             } else {
 131                 $id = array_search($id, Banana::$spool->ids);
 132             }
 133         }
 134         $data = $this->article($id);
 135         if ($data !== false) {
 136             return implode("\n", $data);
 137         }
 138         $data = null;
 139         return $data;
 140     }
 141
 142     /** Return the indexes of the messages presents in the Box
 143      * @return Array(number of messages, MSGNUM of the first message, MSGNUM of the last message)
 144      */
 145     public function getIndexes()
 146     {
 147         list($msgnum, $first, $last, $groupname) = $this->group(Banana::$group);
 148         $this->ingroup = Banana::$group;
 149         return array($msgnum, $first, $last);
 150     }
 151
 152     /** Return the message headers (in BananaMessage) for messages from firstid to lastid
 153      * @return Array(id => array(headername => headervalue))
 154      */
 155     public function &getMessageHeaders($firstid, $lastid, array $msg_headers = array())
 156     {
 157         $messages = array();
 158         foreach ($msg_headers as $header) {
 159             $headers = $this->xhdr($header, $firstid, $lastid);
 160             $header  = strtolower($header);
 161             if ($header == 'date') {
 162                 $headers = array_map('strtotime', $headers);
 163             } else {
 164                 array_walk($headers, array('BananaMimePart', 'decodeHeader'));
 165             }
 166             foreach ($headers as $id=>&$value) {
 167                 if (!isset($messages[$id])) {
 168                     $messages[$id] = array();
 169                 }
 170                 $messages[$id][$header] =& $value;
 171             }
 172         }
 173         return $messages;
 174     }
 175
 176     /** Add protocole specific data in the spool
 177      */
 178     public function updateSpool(array &$messages)
 179     {
 180         return true;
 181     }
 182
 183     /** Return the indexes of the new messages since the give date
 184      * @return Array(MSGNUM of new messages)
 185      */
 186     public function getNewIndexes($since)
 187     {
 188         return $this->newnews(Banana::$group, $since);
 189     }
 190
 191     /** Return true if can post
 192      */
 193     public function canSend()
 194     {
 195         return $this->isValid();
 196     }
 197
 198     /** Return true if can cancel
 199      */
 200     public function canCancel()
 201     {
 202         return $this->isValid();
 203     }
 204
 205     /** Return the list of requested header for a new post
 206      */
 207     public function requestedHeaders()
 208     {
 209         return Array('From', 'Subject', 'dest' => 'Newsgroups', 'reply' => 'Followup-To', 'Organization');
 210     }
 211
 212     /** Send the message
 213      */
 214     public function send(BananaMessage $message)
 215     {
 216         $sources = $message->get(true);
 217         return $this->post($sources);
 218     }
 219
 220     /** Cancel the message
 221      */
 222     public function cancel(BananaMessage $message)
 223     {
 224         $headers = Array('From' => Banana::$profile['From'],
 225                          'Newsgroups' => Banana::$group,
 226                          'Subject'    => 'cmsg ' . $message->getHeaderValue('message-id'),
 227                          'Control'    => 'cancel ' . $message->getHeaderValue('message-id'));
 228         $headers = array_merge($headers, Banana::$msgedit_headers);
 229         $body   = 'Message canceled with Banana';
 230         $msg    = BananaMessage::newMessage($headers, $body);
 231         return $this->send($msg);
 232     }
 233
 234     /** Return the protocole name
 235      */
 236     public function name()
 237     {
 238         return 'NNTP';
 239     }
 240
 241     /** Return the filename for the spool
 242      */
 243     public function filename()
 244     {
 245         $url  = parse_url(Banana::$nntp_host);
 246         $file = '';
 247         if (isset($url['host'])) {
 248             $file .= $url['host'] . '_';
 249         }
 250         if (isset($url['port'])) {
 251             $file .= $url['port'] . '_';
 252         }
 253         $file .= Banana::$group;
 254         return $file;
 255     }
 256 }
 257
 258 // vim:set et sw=4 sts=4 ts=4 enc=utf-8:
 259 ?>