banana/post.inc.php

   1 <?php
   2 /********************************************************************************
   3 * include/posts.inc.php : class for posts
   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 for posts
  11  */
  12
  13 class BananaPost
  14 {
  15     var $id;
  16     /** headers */
  17     var $headers;
  18     /** body */
  19     var $body;
  20     /** formating */
  21     var $messages;
  22     /** attachment */
  23     var $pj;
  24     /** poster name */
  25     var $name;
  26
  27     /** constructor
  28      * @param $_id STRING MSGNUM or MSGID (a group should be selected in this case)
  29      */
  30     function BananaPost($_id)
  31     {
  32         global $banana;
  33         $this->id       = $_id;
  34         $this->pj       = array();
  35         $this->messages = array();
  36         $this->_header();
  37
  38         if ($body = $banana->nntp->body($_id)) {
  39             $this->body = join("\n", $body);
  40         } else {
  41             return ($this = null);
  42         }
  43
  44         if (isset($this->headers['content-transfer-encoding'])) {
  45             if (preg_match("/base64/", $this->headers['content-transfer-encoding'])) {
  46                 $this->body = base64_decode($this->body);
  47             } elseif (preg_match("/quoted-printable/", $this->headers['content-transfer-encoding'])) {
  48                 $this->body = quoted_printable_decode($this->body);
  49             }
  50         }
  51
  52         if (preg_match("@multipart/([^;]+);@", $this->headers['content-type'], $mpart_type)) {
  53             preg_match("/boundary=\"?([^ \"]+)\"?/", $this->headers['content-type'], $mpart_boundary);
  54             $this->split_multipart($mpart_type[1], $mpart_boundary[1]);
  55         }
  56
  57         if (preg_match('!charset=([^;]*)\s*(;|$)!', $this->headers['content-type'], $matches)) {
  58             $this->body = iconv($matches[1], 'utf-8', $this->body);
  59         } else {
  60             $this->body = utf8_encode($this->body);
  61         }
  62     }
  63
  64     /** split multipart messages
  65      * @param $type STRING multipart type description
  66      * @param $boundary STRING multipart boundary identification string
  67      */
  68     function split_multipart($type, $boundary)
  69     {
  70         $parts = preg_split("/\n--$boundary(--|\n)/", $this->body);
  71         foreach ($parts as $part) {
  72             $part = $this->get_part($part);
  73             $local_header = $part['headers'];
  74             $local_body = $part['body'];
  75             if (isset($local_header['content-disposition']) && preg_match("/attachment/", $local_header['content-disposition'])) {
  76                 $this->add_attachment($part);
  77             } else if (isset($local_header['content-type']) && preg_match("@text/([^;]+);@", $local_header['content-type'], $format)) {
  78                 array_push($this->messages, $part);
  79                 }
  80         }
  81         if (count($this->messages) > 0) {
  82             $this->set_body_to_part(0);
  83         }
  84     }
  85
  86     /** extract new headers from the part
  87      * @param $part STRING part of a multipart message
  88      */
  89     function get_part($part)
  90     {
  91         global $banana;
  92
  93         $lines = split("\n", $part);
  94         while (count($lines)) {
  95             $line = array_shift($lines);
  96             if ($line != "") {
  97                 list($hdr, $val) = split(":[ \t\r]*", $line, 2);
  98                 $hdr = strtolower($hdr);
  99                 if (in_array($hdr, $banana->parse_hdr)) {
 100                     $local_headers[$hdr] = $val;
 101                 }
 102             } else {
 103                 break;
 104             }
 105         }
 106         return Array('headers' => $local_headers, 'body' => join("\n", $lines));
 107     }
 108
 109     /** add an attachment
 110      */
 111     function add_attachment($part)
 112     {
 113         $local_header = $part['headers'];
 114         $local_body = $part['body'];
 115
 116         if (!isset($local_header['content-transfer-encoding'])) {
 117             return false;
 118         }
 119
 120         if (isset($local_header['content-disposition'])) {
 121             if (preg_match("/attachment/", $local_header['content-disposition'])) {
 122                 preg_match("/filename=\"?([^\"]+)\"?/", $local_header['content-disposition'], $filename);
 123                 $filename = $filename[1];
 124             }
 125         }
 126         if (!isset($filename)) {
 127             $filename = "attachment".count($pj);
 128         }
 129
 130         if (isset($local_header['content-type'])) {
 131             if (preg_match("/^\\s*([^ ;]+);/", $local_header['content-type'], $mimetype)) {
 132                 $mimetype = $mimetype[1];
 133             }
 134         }
 135         if (!isset($mimetype)) {
 136             return false;
 137         }
 138
 139         array_push($this->pj, Array('MIME' => $mimetype,
 140                                     'filename' => $filename,
 141                                     'encoding' => strtolower($local_header['content-transfer-encoding']),
 142                                     'data' => $local_body));
 143         return true;
 144     }
 145
 146     /** decode an attachment
 147      * @param pjid INT id of the attachment to decode
 148      * @param action BOOL action to execute : true=view, false=download
 149      */
 150     function get_attachment($pjid, $action = false)
 151     {
 152         if ($pjid >= count($this->pj)) {
 153             return false;
 154         } else {
 155             $file = $this->pj[$pjid];
 156             header('Content-Type: '.$file['MIME']);
 157             if (!$action) {
 158                 header('Content-Disposition: attachment; filename="'.$file['filename'].'"');
 159             }
 160             if ($file['encoding'] == 'base64') {
 161                 echo base64_decode($file['data']);
 162             } else {
 163                 header('Content-Transfer-Encoding: '.$file['encoding']);
 164                 echo $file['data'];
 165             }
 166             return true;
 167         }
 168     }
 169
 170     /** set body to represent the given part
 171      * @param partid INT index of the part in messages
 172      */
 173     function set_body_to_part($partid)
 174     {
 175         global $banana;
 176
 177         if (count($this->messages) == 0) {
 178             return false;
 179         }
 180
 181         $local_header = $this->messages[$partid]['headers'];
 182         $this->body   = $this->messages[$partid]['body'];
 183         foreach ($banana->parse_hdr as $hdr) {
 184             if (isset($local_header[$hdr])) {
 185                 $this->headers[$hdr] = $local_header[$hdr];
 186             }
 187         }
 188         return true;
 189     }
 190
 191     function _header()
 192     {
 193         global $banana;
 194         $hdrs = $banana->nntp->head($this->id);
 195         if (!$hdrs) {
 196             $this = null;
 197             return false;
 198         }
 199
 200         // parse headers
 201         foreach ($hdrs as $line) {
 202             if (preg_match("/^[\t\r ]+/", $line)) {
 203                 $line = ($hdr=="X-Face"?"":" ").ltrim($line);
 204                 if (in_array($hdr, $banana->parse_hdr))  {
 205                     $this->headers[$hdr] .= $line;
 206                 }
 207             } else {
 208                 list($hdr, $val) = split(":[ \t\r]*", $line, 2);
 209                 $hdr = strtolower($hdr);
 210                 if (in_array($hdr, $banana->parse_hdr)) {
 211                     $this->headers[$hdr] = $val;
 212                 }
 213             }
 214         }
 215         // decode headers
 216         foreach ($banana->hdecode as $hdr) {
 217             if (isset($this->headers[$hdr])) {
 218                 $this->headers[$hdr] = headerDecode($this->headers[$hdr]);
 219             }
 220         }
 221
 222         $this->name = $this->headers['from'];
 223         $this->name = preg_replace('/<[^ ]*>/', '', $this->name);
 224         $this->name = trim($this->name);
 225     }
 226
 227     function checkcancel()
 228     {
 229         if (function_exists('hook_checkcancel')) {
 230             return hook_checkcancel($this->headers);
 231         }
 232         return ($this->headers['from'] == $_SESSION['name']." <".$_SESSION['mail'].">");
 233     }
 234
 235     /** convert message to html
 236      * @param partid INT id of the multipart message that must be displaid
 237      */
 238     function to_html($partid = 0)
 239     {
 240         global $banana;
 241
 242         if ($partid != 0) {
 243             $this->set_body_to_part($partid);
 244         }
 245
 246         $res  = '<table class="bicol banana_msg" cellpadding="0" cellspacing="0">';
 247         $res .= '<tr><th colspan="2">'._b_('En-têtes').'</th></tr>';
 248
 249         foreach ($banana->show_hdr as $hdr) {
 250             if (isset($this->headers[$hdr])) {
 251                 $res2 = formatdisplayheader($hdr, $this->headers[$hdr]);
 252                 if ($res2) {
 253                     $res .= '<tr><td class="hdr">'.header_translate($hdr)."</td><td class='val'>$res2</td></tr>\n";
 254                 }
 255             }
 256         }
 257
 258         $res .= '<tr><th colspan="2">'._b_('Corps');
 259         if (count($this->messages) > 1) {
 260             for ($i = 0 ; $i < count($this->messages) ; $i++) {
 261                 if ($i == 0) {
 262                     $res .= ' : ';
 263                 } else {
 264                     $res .= ' . ';
 265                 }
 266                 preg_match("@text/([^;]+);@", $this->messages[$i]['headers']['content-type'], $format);
 267                 $format = textFormat_translate($format[1]);
 268                 if ($i != $partid) {
 269                     $res .= '<a href="?group='.$banana->state['group'].'&artid='.$this->id.'&part='.$i.'">'.$format.'</a>';
 270                 } else {
 271                     $res .= $format;
 272                 }
 273             }
 274         }
 275         $res .= '</th></tr>';
 276
 277         preg_match("@text/([^;]+);@", $this->headers['content-type'], $format);
 278         $format = $format[1];
 279         $res .= '<tr><td colspan="2">';
 280         if ($format == 'html') {
 281             $res .= formatbody($this->body, $format);
 282         } else {
 283             $res .= '<pre>'.formatbody($this->body).'</pre>';
 284         }
 285         $res .= '</td></tr>';
 286
 287         if (count($this->pj) > 0) {
 288             $res .= '<tr><th colspan="2">'._b_('Pièces jointes').'</th></tr>';
 289             $res .= '<tr><td colspan="2">';
 290             $i = 0;
 291             foreach ($this->pj as $file) {
 292                 $res .= $file['filename'].' ('.$file['MIME'].') : ';
 293                 $res .= '<a href="pj.php?group='.$banana->state['group'].'&artid='.$this->id.'&pj='.$i.'">télécharger</a>';
 294                 if (preg_match("@(image|text)/@", $file['MIME'])) {
 295                     $res .= ' . <a href="pj.php?group='.$banana->state['group'].'&artid='.$this->id.'&pj='.$i.'&action=view">aperçu</a>';
 296                 }
 297                 $res .=  '<br/>';
 298                 $i++;
 299             }
 300             $res .= '</td></tr>';
 301         }
 302
 303         $res .= '<tr><th colspan="2">'._b_('apercu').'</th></tr>';
 304         $ndx  = $banana->spool->getndx($this->id);
 305         $res .= '<tr><td class="thrd" colspan="2">'.$banana->spool->to_html($ndx-$banana->tbefore, $ndx+$banana->tafter, $ndx).'</td></tr>';
 306
 307         return $res.'</table>';
 308     }
 309 }
 310
 311 ?>