functions/mailbox_display.php

   1 <?php
   2
   3 /**
   4 * mailbox_display.php
   5 *
   6 * Copyright (c) 1999-2004 The SquirrelMail Project Team
   7 * Licensed under the GNU GPL. For full terms see the file COPYING.
   8 *
   9 * This contains functions that display mailbox information, such as the
  10 * table row that has sender, date, subject, etc...
  11 *
  12 * @version $Id$
  13 * @package squirrelmail
  14 */
  15
  16 /** The standard includes.. */
  17 require_once(SM_PATH . 'functions/strings.php');
  18 require_once(SM_PATH . 'functions/html.php');
  19 require_once(SM_PATH . 'class/html.class.php');
  20 require_once(SM_PATH . 'functions/imap_mailbox.php');
  21 require_once(SM_PATH . 'functions/imap_messages.php');
  22 require_once(SM_PATH . 'functions/mime.php');
  23 require_once(SM_PATH . 'functions/forms.php');
  24
  25 /**
  26 * default value for page_selector_max
  27 */
  28 define('PG_SEL_MAX', 10);
  29
  30 /**
  31 * Sort constants used for sorting of messages
  32 */
  33 define('SQSORT_NONE',0);
  34 define('SQSORT_DATE_ASC',1);
  35 define('SQSORT_DATE_DEC',2);
  36 define('SQSORT_FROM_ASC',3);
  37 define('SQSORT_FROM_DEC',4);
  38 define('SQSORT_SUBJ_ASC',5);
  39 define('SQSORT_SUBJ_DEC',6);
  40 define('SQSORT_SIZE_ASC',7);
  41 define('SQSORT_SIZE_DEC',8);
  42 define('SQSORT_TO_ASC',9);
  43 define('SQSORT_TO_DEC',10);
  44 define('SQSORT_CC_ASC',11);
  45 define('SQSORT_CC_DEC',12);
  46 define('SQSORT_INT_DATE_ASC',13);
  47 define('SQSORT_INT_DATE_DEC',14);
  48 define('SQSORT_THREAD',42);
  49 /**
  50 * @param mixed $start UNDOCUMENTED
  51 */
  52 function elapsed($start) {
  53
  54     $end = microtime();
  55     list($start2, $start1) = explode(" ", $start);
  56     list($end2, $end1) = explode(" ", $end);
  57     $diff1 = $end1 - $start1;
  58     $diff2 = $end2 - $start2;
  59     if( $diff2 < 0 ){
  60         $diff1 -= 1;
  61         $diff2 += 1.0;
  62     }
  63     return $diff2 + $diff1;
  64 }
  65
  66 /**
  67 * Displays message header row in messages list
  68 *
  69 * @param  array $aMsg contains all message related parameters
  70 * @return void
  71 */
  72
  73 function printMessageInfo($aMsg) {
  74     // FIX ME, remove these globals as well by adding an array as argument for the user settings
  75     // specificly meant for header display
  76     global $checkall,
  77         $color,
  78         $default_use_priority,
  79         $message_highlight_list,
  80         $index_order,
  81         $truncate_sender,      /* number of characters for From/To field (<= 0 for unchanged) */
  82         $email_address,
  83         $show_recipient_instead,        /* show recipient name instead of default identity */
  84         $use_icons,            /* indicates to use icons or text markers */
  85         $icon_theme;           /* icons theming */
  86
  87     $color_string = $color[4];
  88
  89     // initialisation:
  90     $mailbox     = $aMsg['MAILBOX'];
  91     $msg         = $aMsg['HEADER'];
  92     $t           =  $aMsg['INDX'];
  93     $start_msg   = $aMsg['PAGEOFFSET'];
  94     $last        = $aMsg['LAST'];
  95     if (isset($aMsg['SEARCH']) && count($aMsg['SEARCH']) >1 ) {
  96         $where   = $aMsg['SEARCH'][0];
  97         $what    = $aMsg['SEARCH'][1];
  98     } else {
  99         $where = false;
 100         $what = false;
 101     }
 102     $iIndent  = $aMsg['INDENT'];
 103
 104     $sSubject = (isset($msg['SUBJECT']) && $msg['SUBJECT'] != '') ? $msg['SUBJECT'] : _("(no subject)");
 105     $sFrom    = (isset($msg['FROM'])) ? $msg['FROM'] : _("Unknown sender");
 106     $sTo      = (isset($msg['TO'])) ? $msg['TO'] : _("Unknown recipient");
 107     $sCc      = (isset($msg['CC'])) ? $msg['CC'] : '';
 108     $aFlags   = (isset($msg['FLAGS'])) ? $msg['FLAGS'] : array();
 109     $iPrio    = (isset($msg['PRIORITY'])) ? $msg['PRIORITY'] : 3;
 110     $iSize    = (isset($msg['SIZE'])) ? $msg['SIZE'] : 0;
 111     $sType0   = (isset($msg['TYPE0'])) ? $msg['TYPE0'] : 'text';
 112     $sType1   = (isset($msg['TYPE1'])) ? $msg['TYPE1'] : 'plain';
 113     if (isset($msg['INTERNALDATE'])) {
 114        $sDate = getDateString(getTimeStamp(explode(' ',$msg['INTERNALDATE'])));
 115     } else {
 116        $sDate = (isset($msg['DATE'])) ? getDateString(getTimeStamp(explode(' ',$msg['DATE']))) : '';
 117     }
 118     $iId      = (isset($msg['ID'])) ? $msg['ID'] : false;
 119
 120     if (!$iId) {
 121         return;
 122     }
 123
 124     if ($GLOBALS['alt_index_colors']) {
 125         if (!($t % 2)) {
 126             if (!isset($color[12])) {
 127                 $color[12] = '#EAEAEA';
 128             }
 129             $color_string = $color[12];
 130         }
 131     }
 132
 133     $urlMailbox = urlencode($mailbox);
 134
 135     // FIXME, foldertype should be set in right_main.php
 136     // in other words, handle as sent is obsoleted from now.
 137     // We replace that by providing an array to aMailbox with the to shown headers
 138     // that way we are free to show the user different layouts for different folders
 139     $bSentFolder = handleAsSent($mailbox);
 140     if ((!$bSentFolder) && ($show_recipient_instead)) {
 141         // If the From address is the same as $email_address, then handle as Sent
 142         $from_array = parseAddress($sFrom, 1);
 143         if (!isset($email_address)) {
 144             global $datadir, $username;
 145             $email_address = getPref($datadir, $username, 'email_address');
 146         }
 147         $bHandleAsSent = ((isset($from_array[0][0])) && ($from_array[0][0] == $email_address));
 148     } else {
 149         $bHandleAsSent = $bSentFolder;
 150     }
 151     // If this is a Sent message, display To address instead of From
 152     if ($bHandleAsSent) {
 153         $sFrom = $sTo;
 154     }
 155     // Passing 1 below results in only 1 address being parsed, thus defeating the following code
 156     $sFrom = parseAddress($sFrom/*,1*/);
 157
 158     /*
 159         * This is done in case you're looking into Sent folders,
 160         * because you can have multiple receivers.
 161         */
 162     $senderNames = $sFrom;
 163     $senderName  = '';
 164     $senderAddress = '';
 165     if (sizeof($senderNames)){
 166         foreach ($senderNames as $senderNames_part) {
 167             if ($senderName != '') {
 168                 $senderName .= ', ';
 169                 $senderAddress .= ', ';
 170             }
 171             $sender_address_part = htmlspecialchars($senderNames_part[0]);
 172             $sender_name_part = str_replace('&nbsp;',' ', decodeHeader($senderNames_part[1]));
 173             if ($sender_name_part) {
 174                 $senderName .= $sender_name_part;
 175                 $senderAddress .= $sender_name_part . ' <' . $sender_address_part . '>';
 176             } else {
 177                 $senderName .= $sender_address_part;
 178                 $senderAddress .= $sender_address_part;
 179             }
 180         }
 181     }
 182     // If Sent, prefix with To: but only if not Sent folder
 183     if ($bHandleAsSent ^ $bSentFolder) {
 184         $senderName = _("To:") . ' ' . $senderName;
 185         $senderAddress = _("To:") . ' ' . $senderAddress;
 186     }
 187
 188     // this is a column property which can apply to multiple columns. Do not use vars for one column
 189     // only. instead we should use something like this:
 190     // 1ed column $aMailbox['columns']['SUBJECT'] value: aray with properties ...
 191     // 2ed column $aMailbox['columns']['FROM'] value: aray with properties ...
 192     //            NB in case of the sentfolder this could be the TO field
 193     // properties array example:
 194     //      'truncate' => length (0 is no truncate)
 195     //      'prefix    => if (x in b then do that )
 196     if ($truncate_sender > 0) {
 197         $senderName = truncateWithEntities($senderName, $truncate_sender);
 198     }
 199
 200     $flag = $flag_end = $bold = $bold_end = $fontstr = $fontstr_end = $italic = $italic_end = '';
 201     $bold = '<b>';
 202     $bold_end = '</b>';
 203
 204     foreach ($aFlags as $sFlag => $value) {
 205         switch ($sFlag) {
 206           case '\\flagged':
 207               if ($value) {
 208                   $flag = "<font color=\"$color[2]\">";
 209                   $flag_end = '</font>';
 210               }
 211               break;
 212           case '\\seen':
 213               if ($value) {
 214                   $bold = '';
 215                   $bold_end = '';
 216               }
 217               break;
 218           case '\\deleted':
 219               if ($value) {
 220                   $fontstr = "<font color=\"$color[9]\">";
 221                   $fontstr_end = '</font>';
 222               }
 223               break;
 224         }
 225     }
 226     if ($bHandleAsSent) {
 227         $italic = '<i>';
 228         $italic_end = '</i>';
 229     }
 230
 231     if ($where && $what) {
 232         $searchstr = '&amp;where='.$where.'&amp;what='.$what;
 233     } else {
 234         $searchstr = '';
 235     }
 236     /*
 237      *  Message highlight code
 238      */
 239     $matches = array('TO' => 'sTo', 'CC' => 'sCc', 'FROM' => 'sFrom', 'SUBJECT' => 'sSubject');
 240     if (is_array($message_highlight_list) && count($message_highlight_list)) {
 241         $sTo = parseAddress($sTo);
 242         $sCc = parseAddress($sCc);
 243         foreach ($message_highlight_list as $message_highlight_list_part) {
 244             if (trim($message_highlight_list_part['value']) != '') {
 245                 $high_val   = strtolower($message_highlight_list_part['value']);
 246                 $match_type = strtoupper($message_highlight_list_part['match_type']);
 247                 if($match_type == 'TO_CC') {
 248                     $match = array('TO', 'CC');
 249                 } else {
 250                     $match = array($match_type);
 251                 }
 252                 foreach($match as $match_type) {
 253                     switch($match_type) {
 254                         case('TO'):
 255                         case('CC'):
 256                         case('FROM'):
 257                             foreach ($$matches[$match_type] as $address) {
 258                                 $address[0] = decodeHeader($address[0], true, false);
 259                                 $address[1] = decodeHeader($address[1], true, false);
 260                                 if (strstr('^^' . strtolower($address[0]), $high_val) ||
 261                                     strstr('^^' . strtolower($address[1]), $high_val)) {
 262                                     $hlt_color = $message_highlight_list_part['color'];
 263                                     break 4;
 264                                 }
 265                             }
 266                             break;
 267                         default:
 268                             $headertest = strtolower(decodeHeader($$matches[$match_type], true, false));
 269                             if (strstr('^^' . $headertest, $high_val)) {
 270                                 $hlt_color = $message_highlight_list_part['color'];
 271                                 break 3;
 272                             }
 273                             break;
 274                     }
 275                 }
 276             }
 277         }
 278     } /* end Message highlight code */
 279
 280     if (!isset($hlt_color)) {
 281         $hlt_color = $color_string;
 282     }
 283     $col = 0;
 284     $sSubject = str_replace('&nbsp;', ' ', decodeHeader($sSubject));
 285     $subject = processSubject($sSubject, $iIndent);
 286
 287     echo html_tag( 'tr','','','','VALIGN="top"') . "\n";
 288
 289     if (sizeof($index_order)) {
 290         foreach ($index_order as $index_order_part) {
 291             switch ($index_order_part) {
 292             case 1: /* checkbox */
 293                 echo html_tag( 'td',
 294                     addCheckBox("msg[$t]", $checkall, $iId),
 295                             'center',
 296                             $hlt_color );
 297                 break;
 298             case 2: /* from */
 299                 if ($senderAddress != $senderName) {
 300                     $senderAddress = strtr($senderAddress, array_flip(get_html_translation_table(HTML_SPECIALCHARS)));
 301                     $title = ' title="' . str_replace('"', "''", $senderAddress) . '"';
 302                 } else {
 303                     $title = '';
 304                 }
 305                 echo html_tag( 'td',
 306                             $italic . $bold . $flag . $fontstr . $senderName .
 307                             $fontstr_end . $flag_end . $bold_end . $italic_end,
 308                             'left',
 309                             $hlt_color, $title );
 310                 break;
 311             case 3: /* date */
 312                 if ($sDate == '') {
 313                     $sDate = _("Unknown date");
 314                 }
 315                 echo html_tag( 'td',
 316                             $bold . $flag . $fontstr . $sDate .
 317                             $fontstr_end . $flag_end . $bold_end,
 318                             'center',
 319                             $hlt_color,
 320                             'nowrap' );
 321                 break;
 322             case 4: /* subject */
 323                 $td_str = $bold;
 324                 if ($iIndent) {
 325                     $td_str .= str_repeat("&nbsp;&nbsp;&nbsp;&nbsp;",$iIndent);
 326                 }
 327                 $td_str .= '<a href="read_body.php?mailbox='.$urlMailbox
 328                         .  '&amp;passed_id='. $msg["ID"]
 329                         .  '&amp;startMessage='.$start_msg.$searchstr.'"';
 330                 $td_str .= ' ' .concat_hook_function('subject_link', array($start_msg, $searchstr));
 331                 if ($subject != $sSubject) {
 332                     $title = get_html_translation_table(HTML_SPECIALCHARS);
 333                     $title = array_flip($title);
 334                     $title = strtr($sSubject, $title);
 335                     $title = str_replace('"', "''", $title);
 336                     $td_str .= " title=\"$title\"";
 337                 }
 338                 $td_str .= ">$flag$subject$flag_end</a>$bold_end";
 339                 echo html_tag( 'td', $td_str, 'left', $hlt_color );
 340                 break;
 341             case 5: /* flags */
 342
 343                 // icon message markers
 344                 //
 345                 if ($use_icons && $icon_theme != 'none') {
 346                     $td_str = "<b><small>";
 347                     if (isset($aFlags['\\flagged']) && $aFlags['\\flagged'] == true) {
 348                         $td_str .= '<img src="' . SM_PATH . 'images/themes/' . $icon_theme . '/flagged.png" border="0" height="10" width="10" /> ';
 349                     }
 350                     if ($default_use_priority) {
 351                         if ( ($iPrio == 1) || ($iPrio == 2) ) {
 352                             $td_str .= '<img src="' . SM_PATH . 'images/themes/' . $icon_theme . '/prio_high.png" border="0" height="10" width="5" /> ';
 353                         }
 354                         else if ($iPrio == 5) {
 355                             $td_str .= '<img src="' . SM_PATH . 'images/themes/' . $icon_theme . '/prio_low.png" border="0" height="10" width="5" /> ';
 356                         }
 357                         else {
 358                             $td_str .= '<img src="' . SM_PATH . 'images/themes/' . $icon_theme . '/transparent.png" border="0" width="5" /> ';
 359                         }
 360                     }
 361                     if ($sType1 == 'mixed') {
 362                         $td_str .= '<img src="' . SM_PATH . 'images/themes/' . $icon_theme . '/attach.png" border="0" height="10" width="6" />';
 363                     } else {
 364                         $td_str .= '<img src="' . SM_PATH . 'images/themes/' . $icon_theme . '/transparent.png" border="0" width="6" />';
 365                     }
 366
 367                     $msg_icon = '';
 368                     if (!isset($aFlags['\\seen']) || ($aFlags['\\seen']) == false) {
 369                         $msg_alt = '(' . _("New") . ')';
 370                         $msg_title = '(' . _("New") . ')';
 371                         $msg_icon .= SM_PATH . 'images/themes/' . $icon_theme . '/msg_new';
 372                     } else {
 373                         $msg_alt = '(' . _("Read") . ')';
 374                         $msg_title = '(' . _("Read") . ')';
 375                         $msg_icon .= SM_PATH . 'images/themes/' . $icon_theme . '/msg_read';
 376                     }
 377                     if (isset($aFlags['\\deleted']) && ($aFlags['\\deleted']) == true) {
 378                         $msg_icon .= '_deleted';
 379                     }
 380                     if (isset($aFlags['\\answered']) && ($aFlags['\\answered']) == true) {
 381                         $msg_alt = '(' . _("Answered") . ')';
 382                         $msg_title = '(' . _("Answered") . ')';
 383                         $msg_icon .= '_reply';
 384                     }
 385                     $td_str .= '<img src="' . $msg_icon . '.png" border="0" alt="'. $msg_alt . '" title="' . $msg_title . '" height="12" width="18" />';
 386                     $td_str .= '</small></b>';
 387                     echo html_tag( 'td',
 388                                 $td_str,
 389                                 'right',
 390                                 $hlt_color,
 391                                 'nowrap' );
 392                 }
 393
 394                 // plain text message markers
 395                 //
 396                 else {
 397                     $stuff = false;
 398                     $td_str = "<b><small>";
 399                     if (isset($aFlags['\\answered']) && $aFlags['\\answered'] == true) {
 400                         $td_str .= _("A");
 401                         $stuff = true;
 402                     }
 403                     if ($sType1 == 'mixed') {
 404                         $td_str .= '+';
 405                         $stuff = true;
 406                     }
 407                     if ($default_use_priority) {
 408                         if ( ($iPrio == 1) || ($iPrio == 2) ) {
 409                             $td_str .= "<font color=\"$color[1]\">!</font>";
 410                             $stuff = true;
 411                         }
 412                         if ($iPrio == 5) {
 413                             $td_str .= "<font color=\"$color[8]\">?</font>";
 414                             $stuff = true;
 415                         }
 416                     }
 417                     if (isset($aFlags['\\deleted']) && $aFlags['\\deleted'] == true) {
 418                         $td_str .= "<font color=\"$color[1]\">D</font>";
 419                         $stuff = true;
 420                     }
 421                     if (!$stuff) {
 422                         $td_str .= '&nbsp;';
 423                     }
 424                     $td_str .= '</small></b>';
 425                     echo html_tag( 'td',
 426                                 $td_str,
 427                                 'center',
 428                                 $hlt_color,
 429                                 'nowrap' );
 430                 }
 431                 break;
 432             case 6: /* size */
 433                 echo html_tag( 'td',
 434                             $bold . $fontstr . show_readable_size($iSize) .
 435                             $fontstr_end . $bold_end,
 436                             'right',
 437                             $hlt_color );
 438                 break;
 439             }
 440             ++$col;
 441         }
 442     }
 443     /* html for separationlines between rows */
 444     if ($last) {
 445         echo '</tr>'."\n";
 446     } else {
 447         echo '</tr>' . "\n" . '<tr><td colspan="' . $col . '" bgcolor="' .
 448             $color[0] . '" height="1"></td></tr>' . "\n";
 449     }
 450 }
 451
 452 /**
 453 * Does the $sort $_GET var to field mapping
 454 *
 455 * @param int $sort Field to sort on
 456 * @param bool $bServerSort Server sorting is true
 457 * @param mixed $key UNDOCUMENTED
 458 * @return string $sSortField Field tosort on
 459 */
 460 function getSortField($sort,$bServerSort) {
 461     switch($sort) {
 462         case SQSORT_NONE:
 463             $sSortField = 'UID';
 464             break;
 465         case SQSORT_DATE_ASC:
 466         case SQSORT_DATE_DEC:
 467             $sSortField = 'DATE';
 468             break;
 469         case SQSORT_FROM_ASC:
 470         case SQSORT_FROM_DEC:
 471             $sSortField = 'FROM';
 472             break;
 473         case SQSORT_SUBJ_ASC:
 474         case SQSORT_SUBJ_DEC:
 475             $sSortField = 'SUBJECT';
 476             break;
 477         case SQSORT_SIZE_ASC:
 478         case SQSORT_SIZE_DEC:
 479             $sSortField = ($bServerSort) ? 'SIZE' : 'RFC822.SIZE';
 480             break;
 481         case SQSORT_TO_ASC:
 482         case SQSORT_TO_DEC:
 483             $sSortField = 'TO';
 484             break;
 485         case SQSORT_CC_ASC:
 486         case SQSORT_CC_DEC:
 487             $sSortField = 'CC';
 488             break;
 489         case SQSORT_INT_DATE_ASC:
 490         case SQSORT_INT_DATE_DEC:
 491             $sSortField = ($bServerSort) ? 'ARRIVAL' : 'INTERNALDATE';
 492             break;
 493         case SQSORT_THREAD:
 494             break;
 495         default: $sSortField = 'UID';
 496             break;
 497
 498     }
 499     return $sSortField;
 500 }
 501
 502 function get_sorted_msgs_list($imapConnection,$aMailbox,&$error) {
 503     $bDirection = ($aMailbox['SORT'] % 2);
 504     $error = false;
 505     switch ($aMailbox['SORT_METHOD']) {
 506       case 'THREAD':
 507         $id = get_thread_sort($imapConnection);
 508         if ($id === false) {
 509             $error = '<b><small><center><font color=red>' .
 510                     _("Thread sorting is not supported by your IMAP server.") . '<br />' .
 511                     _("Please report this to the system administrator.").
 512                     '</center></small></b>';
 513         }
 514         break;
 515       case 'SERVER':
 516         $sSortField = getSortField($aMailbox['SORT'],true);
 517         $id = sqimap_get_sort_order($imapConnection, $sSortField, $bDirection);
 518         if ($id === false) {
 519             $error =  '<b><small><center><font color=red>' .
 520                 _( "Server-side sorting is not supported by your IMAP server.") . '<br />' .
 521                 _("Please report this to the system administrator.").
 522                 '</center></small></b>';
 523         }
 524         break;
 525       default:
 526         $sSortField = getSortField($aMailbox['SORT'],false);
 527         $id = get_squirrel_sort($imapConnection, $sSortField, $bDirection);
 528         break;
 529     }
 530     return $id;
 531 }
 532
 533 /**
 534 * This function loops through a group of messages in the mailbox
 535 * and shows them to the user.
 536 *
 537 * @param mixed $imapConnection
 538 * @param array $aMailbox associative array with mailbox related vars
 539 */
 540 function showMessagesForMailbox($imapConnection, $aMailbox) {
 541     global $msgs, $server_sort_array, $indent_array, $color;
 542
 543     // to retrieve the internaldate pref: (I know this is not the right place to do that, move up in front
 544     // and use a properties array as function argument to provide user preferences
 545     global $data_dir, $username;
 546
 547     /* if there's no messages in this folder */
 548     if ($aMailbox['EXISTS'] == 0) {
 549         $string = '<b>' . _("THIS FOLDER IS EMPTY") . '</b>';
 550         echo '    <table width="100%" cellpadding="1" cellspacing="0" align="center"'.' border="0" bgcolor="'.$color[9].'">';
 551         echo '     <tr><td>';
 552         echo '       <table width="100%" cellpadding="0" cellspacing="0" align="center" border="0" bgcolor="'.$color[4].'">';
 553         echo '        <tr><td><br />';
 554         echo '            <table cellpadding="1" cellspacing="5" align="center" border="0">';
 555         echo '              <tr>' . html_tag( 'td', $string."\n", 'left')
 556                             . '</tr>';
 557         echo '            </table>';
 558         echo '        <br /></td></tr>';
 559         echo '       </table></td></tr>';
 560         echo '    </table>';
 561         return;
 562     } else {
 563         /*
 564         * Adjust the start_msg
 565         */
 566         $start_msg = $aMailbox['PAGEOFFSET'];
 567         if($aMailbox['PAGEOFFSET'] > $aMailbox['EXISTS']) {
 568             $start_msg -= $aMailbox['LIMIT'];
 569             if($start_msg < 1) {
 570                 $start_msg = 1;
 571             }
 572         }
 573         $aMailbox['SEARCH']     = array(); // Alex maybe you can change this so that you can use it from a search
 574
 575         // initialize the fields we want to retrieve:
 576         $aHeaderFields = array('Date', 'To', 'Cc', 'From', 'Subject', 'X-Priority', 'Content-Type');
 577         $aFetchItems = array('FLAGS', 'RFC822.SIZE');
 578         // Are we sorting on internaldate then retrieve the internaldate value as well
 579         $internaldate = getPref($data_dir, $username, 'internal_date_sort');
 580         if ($internaldate) {
 581             $aFetchItems[] = 'INTERNALDATE';
 582         }
 583
 584         if ($aMailbox['SORT'] != SQSORT_NONE && isset($aMailbox['UIDSET']) &&
 585                       $aMailbox['UIDSET'] ) {
 586             $id = $aMailbox['UIDSET'];
 587             if (sqsession_is_registered('msgs')) {
 588                 sqsession_unregister('msgs');
 589             }
 590             $id_slice = array_slice($id,$start_msg-1,$aMailbox['LIMIT']);
 591             if (count($id_slice)) {
 592                 $msgs = sqimap_get_small_header_list($imapConnection,$id_slice,$aMailbox['LIMIT'],
 593                                                      $aHeaderFields,$aFetchItems);
 594
 595             } else {
 596                 return false;
 597             }
 598             // FIX ME, move to msgs cache bound to a mailbox
 599             sqsession_register($msgs, 'msgs');
 600         } else {
 601             if (sqsession_is_registered('server_sort_array')) {
 602                 sqsession_unregister('server_sort_array');
 603             }
 604
 605             if ($aMailbox['SORT'] != SQSORT_NONE  || $aMailbox['SORT_METHOD'] == 'THREAD') {
 606                 $id = get_sorted_msgs_list($imapConnection,$aMailbox,$error);
 607                 if ($id !== false) {
 608                     $id_slice = array_slice($id,$aMailbox['OFFSET'], $aMailbox['LIMIT']);
 609                     if (count($id_slice)) {
 610                         $msgs = sqimap_get_small_header_list($imapConnection,$id_slice,$aMailbox['LIMIT'],
 611                               $aHeaderFields,$aFetchItems);
 612                     } else {
 613                         // FIX ME do error handling
 614                         return false;
 615                     }
 616                 } else {
 617                     // FIX ME, format message and fallback to squirrel sort
 618                     if ($error) {
 619                         echo $error;
 620                     }
 621                 }
 622             } else {
 623                 /**
 624                 * retrieve messages by sequence id's and fetch the UID to retrieve
 625                 * the UID. for sorted lists this is not needed because a UID FETCH
 626                 * automaticly add the UID value in fetch results
 627                 **/
 628                 $aFetchItems[] = 'UID';
 629
 630                 //create id range
 631                 $iRangeEnd = (($aMailbox['EXISTS'] - $aMailbox['OFFSET']) > $aMailbox['LIMIT']) ?
 632                                  $aMailbox['EXISTS'] - $aMailbox['OFFSET'] +1 - $aMailbox['LIMIT']:
 633                                  $aMailbox['EXISTS'] - $aMailbox['OFFSET'];
 634                 $iRangeStart = (($aMailbox['EXISTS'] - $aMailbox['OFFSET']) > $aMailbox['LIMIT']) ?
 635                                  $aMailbox['EXISTS']-$aMailbox['OFFSET'] +1:1;
 636                 $id_slice = range($iRangeStart, $iRangeEnd);
 637                 $msgs = sqimap_get_small_header_list($imapConnection,$id_slice,$aMailbox['LIMIT'],
 638                      $aHeaderFields,$aFetchItems);
 639                 $msgs = array_reverse($msgs,true /* preserve key */);
 640                 // generate id array
 641                 $id = array_keys($msgs);
 642                 $aMailbox['OFFSET'] = 0;
 643             }
 644             // FIX ME, use an id list bound to a mailbox
 645             if ($id !== false) {
 646                 sqsession_register($id, 'server_sort_array');
 647             }
 648
 649             sqsession_register($msgs, 'msgs');
 650         }
 651         $aMailbox['UIDSET'] =& $id;
 652         $aMailbox['MSG_HEADERS'] =& $msgs;
 653         if ($aMailbox['SORT_METHOD'] == 'THREAD') {
 654             // retrieve indent array for thread sort
 655             sqgetGlobalVar('indent_array',$indent_array,SQ_SESSION);
 656             $aMailbox['THREAD_INDENT'] =& $indent_array;
 657         }
 658     } /* if exists > 0 */
 659
 660     $iEnd = ($aMailbox['PAGEOFFSET'] + ($aMailbox['LIMIT'] - 1) < $aMailbox['EXISTS']) ?
 661              $aMailbox['PAGEOFFSET'] + $aMailbox['LIMIT'] - 1 : $aMailbox['EXISTS'];
 662
 663     $paginator_str = get_paginator_str($aMailbox['NAME'], $aMailbox['PAGEOFFSET'], $iEnd,
 664                                     $aMailbox['EXISTS'], $aMailbox['LIMIT'], $aMailbox['SORT']);
 665
 666     $msg_cnt_str = get_msgcnt_str($aMailbox['PAGEOFFSET'], $iEnd,$aMailbox['EXISTS']);
 667
 668     do_hook('mailbox_index_before');
 669 ?>
 670 <table border="0" width="100%" cellpadding="0" cellspacing="0">
 671 <tr>
 672     <td>
 673     <?php mail_message_listing_beginning($imapConnection, $aMailbox, $msg_cnt_str, $paginator_str); ?>
 674     </td>
 675 </tr>
 676 <tr><td height="5" bgcolor="<?php echo $color[4]; ?>"></td></tr>
 677 <tr>
 678     <td>
 679     <table width="100%" cellpadding="1" cellspacing="0" align="center" border="0" bgcolor="<?php echo $color[9]; ?>">
 680         <tr>
 681         <td>
 682             <table width="100%" cellpadding="1" cellspacing="0" align="center" border="0" bgcolor="<?php echo $color[5]; ?>">
 683             <tr>
 684                 <td>
 685                 <?php
 686                     printHeader($aMailbox);
 687                     displayMessageArray($imapConnection, $aMailbox);
 688                 ?>
 689                 </td>
 690             </tr>
 691             </table>
 692         </td>
 693         </tr>
 694     </table>
 695     <?php
 696         mail_message_listing_end($aMailbox['EXISTS'], $paginator_str, $msg_cnt_str);
 697     ?>
 698     </td>
 699 </tr>
 700 </table>
 701 <?php
 702     //$t = elapsed($start);
 703     //echo("elapsed time = $t seconds\n");
 704 }
 705
 706 /**
 707 * Function to map an uid list with a msg header array by uid
 708 * The mapped headers are printed with printMessage
 709 * aMailbox parameters contains info about the page we are on, the
 710 * used search criteria, the number of messages to show
 711 *
 712 * @param resource $imapConnection socket handle to imap
 713 * @param array    $aMailbox array with required elements MSG_HEADERS, UIDSET, OFFSET, LIMIT
 714 * @return void
 715 **/
 716 function displayMessageArray($imapConnection, $aMailbox) {
 717
 718     $aId         = $aMailbox['UIDSET'];
 719     $aHeaders    = $aMailbox['MSG_HEADERS'];
 720     $iOffset     = $aMailbox['OFFSET'];
 721     $sort        = $aMailbox['SORT'];
 722     $iPageOffset = $aMailbox['PAGEOFFSET'];
 723     $sMailbox    = $aMailbox['NAME'];
 724     $aSearch     = (isset($aMailbox['SEARCH'])) ? $aMailbox['SEARCH'] : false;
 725     if ($aMailbox['SORT_METHOD'] == 'THREAD') {
 726         $aIndentArray =& $aMailbox['THREAD_INDENT'];
 727         $bThread = true;
 728     } else {
 729         $bThread = false;
 730     }
 731     /*
 732     * Loop through and display the info for each message.
 733     * ($t is used for the checkbox number)
 734     */
 735     $iEnd = ($aMailbox['LIMIT']) ? $iOffset + $aMailbox['LIMIT']  : 99999999 /* no limit */;
 736     for ($i=$iOffset,$t=0;$i<$iEnd;++$i) {
 737         if (isset($aId[$i])) {
 738             $bLast = ((isset($aId[$i+1]) && isset($aHeaders[$aId[$i+1]]))
 739                                  || ($i == $iEnd )) ? false : true;
 740             if ($bThread) {
 741                $indent = (isset($aIndentArray[$aId[$i]])) ? $aIndentArray[$aId[$i]] : 0;
 742             } else {
 743                $indent = 0;
 744             }
 745             $aMsg = array(
 746                       'HEADER'     => $aHeaders[$aId[$i]],
 747                       'INDX'       => $t,
 748                       'OFFSET'     => $iOffset,
 749                       'PAGEOFFSET' => $iPageOffset,
 750                       'SORT'       => $sort,
 751                       'SEARCH'     => $aSearch,
 752                       'MAILBOX'    => $sMailbox,
 753                       'INDENT'     => $indent,
 754                       'LAST'       => $bLast
 755                     );
 756             printMessageInfo($aMsg);
 757             ++$t;
 758         } else {
 759             break;
 760         }
 761     }
 762 }
 763
 764 /**
 765 * Displays the standard message list header.
 766 *
 767 * To finish the table, you need to do a "</table></table>";
 768 *
 769 * @param resource $imapConnection
 770 * @param array    $aMailbox associative array with mailbox related information
 771 * @param string   $msg_cnt_str
 772 * @param string   $paginator Paginator string
 773 */
 774 function mail_message_listing_beginning ($imapConnection,
 775                                          $aMailbox,
 776                                          $msg_cnt_str = '',
 777                                          $paginator = '&nbsp;'
 778                                         ) {
 779     global $color, $base_uri, $show_flag_buttons, $PHP_SELF;
 780
 781
 782
 783     $php_self = $PHP_SELF;
 784     /* fix for incorrect $PHP_SELF */
 785     if (strpos($php_self, 'move_messages.php')) {
 786         $php_self = str_replace('move_messages.php', 'right_main.php', $php_self);
 787     }
 788     $urlMailbox = urlencode($aMailbox['NAME']);
 789
 790     if (preg_match('/^(.+)\?.+$/',$php_self,$regs)) {
 791         $source_url = $regs[1];
 792     } else {
 793         $source_url = $php_self;
 794     }
 795
 796     if (!isset($msg)) {
 797         $msg = '';
 798     }
 799
 800     if (!strpos($php_self,'?')) {
 801         $location = $php_self.'?mailbox=INBOX&amp;startMessage=1';
 802     } else {
 803         $location = $php_self;
 804     }
 805
 806     $moveFields = addHidden('msg', $msg).
 807                   addHidden('mailbox', $aMailbox['NAME']).
 808                   addHidden('startMessage', $aMailbox['PAGEOFFSET']).
 809                   addHidden('location', $location);
 810
 811     /* build thread sorting links */
 812
 813     if ($aMailbox['ALLOW_THREAD']) {
 814         if ($aMailbox['SORT_METHOD'] == 'THREAD') {
 815             $set_thread = 2;
 816             $thread_name = _("Unthread View");
 817         } else {
 818             $set_thread = 1;
 819             $thread_name = _("Thread View");
 820         }
 821         $thread_link_str = '<small>[<a href="' . $source_url . '?sort='
 822             . $aMailbox['SORT'] . '&start_messages=1&set_thread=' . $set_thread
 823             . '&mailbox=' . urlencode($aMailbox['NAME']) . '">' . $thread_name
 824             . '</a>]</small>';
 825     } else {
 826         $thread_link_str ='';
 827     }
 828     /*
 829     * This is the beginning of the message list table.
 830     * It wraps around all messages
 831     */
 832     $safe_name = preg_replace("/[^0-9A-Za-z_]/", '_', $aMailbox['NAME']);
 833     $form_name = "FormMsgs" . $safe_name;
 834
 835     echo '<form name="' . $form_name . '" method="post" action="move_messages.php">' ."\n"
 836         . $moveFields;
 837 ?>
 838     <table width="100%" cellpadding="1"  cellspacing="0" style="border: 1px solid <?php echo $color[0]; ?>">
 839         <tr>
 840         <td>
 841             <table bgcolor="<?php echo $color[4]; ?>" border="0" width="100%" cellpadding="1"  cellspacing="0">
 842             <tr>
 843                 <td align="left"><small><?php echo $paginator . $thread_link_str; ?></small></td>
 844                 <td align="center"></td>
 845                 <td align="right"><small><?php echo $msg_cnt_str; ?></small></td>
 846             </tr>
 847             </table>
 848         </td>
 849         </tr>
 850         <tr width="100%" cellpadding="1"  cellspacing="0" border="0" bgcolor="<?php echo $color[0]; ?>">
 851         <td>
 852             <table border="0" width="100%" cellpadding="1"  cellspacing="0">
 853             <tr>
 854                 <td align="left">
 855                 <small><?php
 856
 857                     // display flag buttons only if supported
 858                     if ($show_flag_buttons  &&
 859                     array_search('\\flagged',$aMailbox['PERMANENTFLAGS'], true) !== FALSE) {
 860                         echo getButton('SUBMIT', 'markUnflagged',_("Unflag"));
 861                         echo getButton('SUBMIT', 'markFlagged',_("Flag"));
 862                         echo '&nbsp;';
 863                     }
 864                     if (array_search('\\seen',$aMailbox['PERMANENTFLAGS'], true) !== FALSE) {
 865                         echo getButton('SUBMIT', 'markUnread',_("Unread"));
 866                         echo getButton('SUBMIT', 'markRead',_("Read"));
 867                         echo '&nbsp;';
 868                     }
 869
 870                     echo getButton('SUBMIT', 'attache',_("Forward"));
 871                     echo '&nbsp;';
 872                     if (array_search('\\deleted',$aMailbox['PERMANENTFLAGS'], true) !== FALSE) {
 873                         echo getButton('SUBMIT', 'delete',_("Delete"));
 874                         echo '<input type="checkbox" name="bypass_trash" />' . _("Bypass Trash");
 875                         echo '&nbsp;';
 876                     }
 877                     if (!$aMailbox['AUTO_EXPUNGE'] && $aMailbox['RIGHTS'] != 'READ-ONLY') {
 878                     echo getButton('SUBMIT', 'expungeButton',_("Expunge"))  .'&nbsp;' . _("mailbox") . "\n";
 879                     echo '&nbsp;';
 880                     }
 881                     do_hook('mailbox_display_buttons');
 882                 ?></small>
 883                 </td>
 884                 <?php
 885                 if (array_search('\\deleted',$aMailbox['PERMANENTFLAGS'], true) !== FALSE) {
 886                     echo '<td align="right">
 887                 <small>';
 888                     //echo $thread_link_str;    //previous behaviour
 889                     getMbxList($imapConnection);
 890                     echo getButton('SUBMIT', 'moveButton',_("Move")) . "\n
 891                 </small>";
 892                 }
 893                 ?>
 894                 </td>
 895             </tr>
 896             </table>
 897         </td>
 898         </tr>
 899     </table>
 900
 901 <?php
 902     do_hook('mailbox_form_before');
 903 }
 904
 905 /**
 906 * Function to add the last row in a message list, it contains the paginator and info about
 907 * the number of messages.
 908 *
 909 * @param integer $num_msgs number of messages in a mailbox
 910 * @param string  $paginator_str Paginator string  [Prev | Next]  [ 1 2 3 ... 91 92 94 ]  [Show all]
 911 * @param string  $msg_cnt_str   Message count string Viewing Messages: 21 to 1861 (20 total)
 912 */
 913 function mail_message_listing_end($num_msgs, $paginator_str, $msg_cnt_str) {
 914 global $color;
 915 if ($num_msgs) {
 916     /* space between list and footer */
 917 ?>
 918 <tr><td height="5" bgcolor="<?php echo $color[4]; ?>" colspan="1"></td></tr>
 919 <tr>
 920     <td>
 921     <table width="100%" cellpadding="1"  cellspacing="0" style="border: 1px solid <?php echo $color[0]; ?>">
 922         <tr>
 923         <td>
 924             <table bgcolor="<?php echo $color[4]; ?>" border="0" width="100%" cellpadding="1"  cellspacing="0">
 925             <tr>
 926                 <td align="left"><small><?php echo $paginator_str; ?></small></td>
 927                 <td align="right"><small><?php echo $msg_cnt_str; ?></small></td>
 928             </tr>
 929             </table>
 930         </td>
 931         </tr>
 932     </table>
 933     </td>
 934 </tr>
 935 <?php
 936 }
 937     /* End of message-list table */
 938
 939     do_hook('mailbox_index_after');
 940     echo "</form>\n";
 941 }
 942
 943 /**
 944 * Prints the table header for the messages list view
 945 *
 946 * @param array $aMailbox
 947 */
 948 function printHeader($aMailbox) {
 949     global $index_order, $internal_date_sort, $color;
 950
 951     if ($aMailbox['SORT_METHOD'] != 'THREAD') {
 952         $showsort = true;
 953     } else {
 954         $showsort = false;
 955     }
 956
 957     echo html_tag( 'tr' ,'' , 'center', $color[5] );
 958
 959     /* calculate the width of the subject column based on the
 960     * widths of the other columns */
 961     $widths = array(1=>1,2=>25,3=>5,4=>0,5=>1,6=>5);
 962     $subjectwidth = 100;
 963     foreach($index_order as $item) {
 964         $subjectwidth -= $widths[$item];
 965     }
 966
 967     foreach ($index_order as $item) {
 968         switch ($item) {
 969         case 1: /* checkbox */
 970             echo html_tag( 'td',get_selectall_link($aMailbox) , '', '', 'width="1%"' );
 971             break;
 972         case 5: /* flags */
 973             echo html_tag( 'td','' , '', '', 'width="1%"' );
 974             break;
 975         case 2: /* from */
 976             if (handleAsSent($aMailbox['NAME'])) {
 977                 echo html_tag( 'td' ,'' , 'left', '', 'width="25%"' )
 978                     . '<b>' . _("To") . '</b>';
 979                 if ($showsort) {
 980                     ShowSortButton($aMailbox, SQSORT_TO_ASC, SQSORT_TO_DEC);
 981                 }
 982             } else {
 983                 echo html_tag( 'td' ,'' , 'left', '', 'width="25%"' )
 984                     . '<b>' . _("From") . '</b>';
 985                 if ($showsort) {
 986                     ShowSortButton($aMailbox, SQSORT_FROM_ASC, SQSORT_FROM_DEC);
 987                 }
 988             }
 989             echo "</td>\n";
 990             break;
 991         case 3: /* date */
 992             echo html_tag( 'td' ,'' , 'left', '', 'width="5%" nowrap' )
 993                 . '<b>' . _("Date") . '</b>';
 994             if ($showsort) {
 995                 if ($internal_date_sort) {
 996                     ShowSortButton($aMailbox, SQSORT_INT_DATE_ASC, SQSORT_INT_DATE_DEC);
 997                 } else {
 998                     ShowSortButton($aMailbox, SQSORT_DATE_ASC, SQSORT_DATE_DEC);
 999                 }
1000             }
1001             echo "</td>\n";
1002             break;
1003         case 4: /* subject */
1004             echo html_tag( 'td' ,'' , 'left', '', 'width="'.$subjectwidth.'%"' )
1005                 . '<b>' . _("Subject") . '</b>';
1006             if ($showsort) {
1007                 ShowSortButton($aMailbox, SQSORT_SUBJ_ASC, SQSORT_SUBJ_DEC);
1008             }
1009             echo "</td>\n";
1010             break;
1011         case 6: /* size */
1012             echo html_tag( 'td', '', 'center','','width="5%" nowrap')
1013                 . '<b>' . _("Size") . '</b>';
1014             if ($showsort) {
1015                 ShowSortButton($aMailbox, SQSORT_SIZE_ASC, SQSORT_SIZE_DEC);
1016             }
1017             echo "</td>\n";
1018             break;
1019         }
1020     }
1021     echo "</tr>\n";
1022 }
1023
1024
1025 /**
1026 * This function shows the sort button. Isn't this a good comment?
1027 *
1028 * @param array $aMailbox
1029 * @param integer $Down
1030 * @param integer $Up
1031 */
1032 function ShowSortButton($aMailbox, $Down, $Up ) {
1033     global $PHP_SELF;
1034
1035     /* Figure out which image we want to use. */
1036     if ($aMailbox['SORT'] != $Up && $aMailbox['SORT'] != $Down) {
1037         $img = 'sort_none.png';
1038         $which = $Up;
1039     } elseif ($aMailbox['SORT'] == $Up) {
1040         $img = 'up_pointer.png';
1041         $which = $Down;
1042     } else {
1043         $img = 'down_pointer.png';
1044         $which = 0;
1045     }
1046
1047     if (preg_match('/^(.+)\?.+$/',$PHP_SELF,$regs)) {
1048         $source_url = $regs[1];
1049     } else {
1050         $source_url = $PHP_SELF;
1051     }
1052
1053     /* Now that we have everything figured out, show the actual button. */
1054     echo ' <a href="' . $source_url .'?newsort=' . $which
1055         . '&amp;startMessage=1&amp;mailbox=' . urlencode($aMailbox['NAME'])
1056         . '"><img src="../images/' . $img
1057         . '" border="0" width="12" height="10" alt="sort" title="'
1058         . _("Click here to change the sorting of the message list") .' /"></a>';
1059 }
1060
1061 /**
1062 * FIXME: Undocumented function
1063 *
1064 * @param array $aMailbox
1065 */
1066 function get_selectall_link($aMailbox) {
1067     global $checkall, $javascript_on;
1068     global $PHP_SELF, $PG_SHOWNUM;
1069
1070     $result = '';
1071     if ($javascript_on) {
1072         $safe_name = preg_replace("/[^0-9A-Za-z_]/", '_', $aMailbox['NAME']);
1073         $func_name = "CheckAll" . $safe_name;
1074         $form_name = "FormMsgs" . $safe_name;
1075         $result = '<script language="JavaScript" type="text/javascript">'
1076                 . "\n<!-- \n"
1077                 . "function " . $func_name . "() {\n"
1078                 . "  for (var i = 0; i < document." . $form_name . ".elements.length; i++) {\n"
1079                 . "    if(document." . $form_name . ".elements[i].type == 'checkbox' && "
1080                 . "       document." . $form_name . ".elements[i].name.substring(0,3) == 'msg'){\n"
1081                 . "      document." . $form_name . ".elements[i].checked = "
1082                 . "        !(document." . $form_name . ".elements[i].checked);\n"
1083                 . "    }\n"
1084                 . "  }\n"
1085                 . "}\n"
1086                 . "//-->\n"
1087                 . '</script>'
1088                 . '<input type="checkbox" name="toggleAll" title="'._("Toggle All").'" onclick="'.$func_name.'();" />';
1089 //                . <a href="javascript:void(0)" onClick="' . $func_name . '();">' . _("Toggle All")
1090 //                . "</a>\n";
1091     } else {
1092         if (strpos($PHP_SELF, "?")) {
1093             $result .= "<a href=\"$PHP_SELF&amp;mailbox=" . urlencode($aMailbox['NAME'])
1094                     .  "&amp;startMessage=$aMailbox[PAGEOFFSET]&amp;sort=$aMailbox[SORT]&amp;checkall=";
1095         } else {
1096             $result .= "<a href=\"$PHP_SELF?mailbox=" . urlencode($mailbox)
1097                     .  "&amp;startMessage=$aMailbox[PAGEOFFSET]&amp;sort=$aMailbox[SORT]&amp;checkall=";
1098         }
1099         if (isset($checkall) && $checkall == '1') {
1100             $result .= '0';
1101         } else {
1102             $result .= '1';
1103         }
1104
1105         if (isset($aMailbox['SEARCH']) && $aMailbox['SEARCH'][0]) {
1106             $result .= '&amp;where=' . urlencode($aMailbox['SEARCH'][0])
1107                     .  '&amp;what=' .  urlencode($aMailbox['SEARCH'][1]);
1108         }
1109         $result .= "\">";
1110         $result .= _("All");
1111         $result .= "</a>\n";
1112     }
1113
1114     /* Return our final result. */
1115     return ($result);
1116 }
1117
1118 /**
1119 * This function computes the "Viewing Messages..." string.
1120 *
1121 * @param integer $start_msg first message number
1122 * @param integer $end_msg last message number
1123 * @param integer $num_msgs total number of message in folder
1124 * @return string
1125 */
1126 function get_msgcnt_str($start_msg, $end_msg, $num_msgs) {
1127     /* Compute the $msg_cnt_str. */
1128     $result = '';
1129     if ($start_msg < $end_msg) {
1130         $result = sprintf(_("Viewing Messages: %s to %s (%s total)"),
1131                         '<b>'.$start_msg.'</b>', '<b>'.$end_msg.'</b>', $num_msgs);
1132     } else if ($start_msg == $end_msg) {
1133         $result = sprintf(_("Viewing Message: %s (1 total)"), '<b>'.$start_msg.'</b>');
1134     } else {
1135         $result = '<br />';
1136     }
1137     /* Return our result string. */
1138     return ($result);
1139 }
1140
1141 /**
1142 * Generate a paginator link.
1143 *
1144 * @param mixed $box Mailbox name
1145 * @param mixed $start_msg Message Offset
1146 * @param mixed $use
1147 * @param string $text text used for paginator link
1148 * @return string
1149 */
1150 function get_paginator_link($box, $start_msg, $use, $text) {
1151
1152     $result = "<a href=\"right_main.php?use_mailbox_cache=$use"
1153             . "&amp;startMessage=$start_msg&amp;mailbox=$box\" "
1154             . ">$text</a>";
1155
1156     return ($result);
1157 }
1158
1159 /**
1160 * This function computes the paginator string.
1161 *
1162 * @param string $box
1163 * @param integer $start_msg
1164 * @param integer $end_msg
1165 * @param integer $num_msgs
1166 * @param integer $show_num
1167 * @param integer $sort
1168 */
1169 function get_paginator_str($box, $start_msg, $end_msg, $num_msgs,
1170                         $show_num, $sort) {
1171     global $username, $data_dir, $use_mailbox_cache, $color, $PG_SHOWNUM;
1172
1173     /* Initialize paginator string chunks. */
1174     $prv_str = '';
1175     $nxt_str = '';
1176     $pg_str  = '';
1177     $all_str = '';
1178
1179     $box = urlencode($box);
1180     $use = 0;
1181     /* Create simple strings that will be creating the paginator. */
1182     $spc = '&nbsp;';     /* This will be used as a space. */
1183     $sep = '|';          /* This will be used as a seperator. */
1184
1185     /* Get some paginator preference values. */
1186     $pg_sel = getPref($data_dir, $username, 'page_selector', SMPREF_ON);
1187     $pg_max = getPref($data_dir, $username, 'page_selector_max', PG_SEL_MAX);
1188
1189     /* Make sure that our start message number is not too big. */
1190     $start_msg = min($start_msg, $num_msgs);
1191
1192     /* Compute the starting message of the previous and next page group. */
1193     $next_grp = $start_msg + $show_num;
1194     $prev_grp = $start_msg - $show_num;
1195
1196     /* Compute the basic previous and next strings. */
1197     if (($next_grp <= $num_msgs) && ($prev_grp >= 0)) {
1198         $prv_str = get_paginator_link($box, $prev_grp, $use, _("Previous"));
1199         $nxt_str = get_paginator_link($box, $next_grp, $use, _("Next"));
1200     } else if (($next_grp > $num_msgs) && ($prev_grp >= 0)) {
1201         $prv_str = get_paginator_link($box, $prev_grp, $use, _("Previous"));
1202         $nxt_str = _("Next");
1203     } else if (($next_grp <= $num_msgs) && ($prev_grp < 0)) {
1204         $prv_str = _("Previous");
1205         $nxt_str = get_paginator_link($box, $next_grp, $use, _("Next"));
1206     }
1207
1208     /* Page selector block. Following code computes page links. */
1209     if ($show_num != 0 && $pg_sel && ($num_msgs > $show_num)) {
1210         /* Most importantly, what is the current page!!! */
1211         $cur_pg = intval($start_msg / $show_num) + 1;
1212
1213         /* Compute total # of pages and # of paginator page links. */
1214         $tot_pgs = ceil($num_msgs / $show_num);  /* Total number of Pages */
1215         $vis_pgs = min($pg_max, $tot_pgs - 1);   /* Visible Pages    */
1216
1217         /* Compute the size of the four quarters of the page links. */
1218
1219         /* If we can, just show all the pages. */
1220         if (($tot_pgs - 1) <= $pg_max) {
1221             $q1_pgs = $cur_pg - 1;
1222             $q2_pgs = $q3_pgs = 0;
1223             $q4_pgs = $tot_pgs - $cur_pg;
1224
1225         /* Otherwise, compute some magic to choose the four quarters. */
1226         } else {
1227             /*
1228             * Compute the magic base values. Added together,
1229             * these values will always equal to the $pag_pgs.
1230             * NOTE: These are DEFAULT values and do not take
1231             * the current page into account. That is below.
1232             */
1233             $q1_pgs = floor($vis_pgs/4);
1234             $q2_pgs = round($vis_pgs/4, 0);
1235             $q3_pgs = ceil($vis_pgs/4);
1236             $q4_pgs = round(($vis_pgs - $q2_pgs)/3, 0);
1237
1238             /* Adjust if the first quarter contains the current page. */
1239             if (($cur_pg - $q1_pgs) < 1) {
1240                 $extra_pgs = ($q1_pgs - ($cur_pg - 1)) + $q2_pgs;
1241                 $q1_pgs = $cur_pg - 1;
1242                 $q2_pgs = 0;
1243                 $q3_pgs += ceil($extra_pgs / 2);
1244                 $q4_pgs += floor($extra_pgs / 2);
1245
1246             /* Adjust if the first and second quarters intersect. */
1247             } else if (($cur_pg - $q2_pgs - ceil($q2_pgs/3)) <= $q1_pgs) {
1248                 $extra_pgs = $q2_pgs;
1249                 $extra_pgs -= ceil(($cur_pg - $q1_pgs - 1) * 3/4);
1250                 $q2_pgs = ceil(($cur_pg - $q1_pgs - 1) * 3/4);
1251                 $q3_pgs += ceil($extra_pgs / 2);
1252                 $q4_pgs += floor($extra_pgs / 2);
1253
1254             /* Adjust if the fourth quarter contains the current page. */
1255             } else if (($cur_pg + $q4_pgs) >= $tot_pgs) {
1256                 $extra_pgs = ($q4_pgs - ($tot_pgs - $cur_pg)) + $q3_pgs;
1257                 $q3_pgs = 0;
1258                 $q4_pgs = $tot_pgs - $cur_pg;
1259                 $q1_pgs += floor($extra_pgs / 2);
1260                 $q2_pgs += ceil($extra_pgs / 2);
1261
1262             /* Adjust if the third and fourth quarter intersect. */
1263             } else if (($cur_pg + $q3_pgs + 1) >= ($tot_pgs - $q4_pgs + 1)) {
1264                 $extra_pgs = $q3_pgs;
1265                 $extra_pgs -= ceil(($tot_pgs - $cur_pg - $q4_pgs) * 3/4);
1266                 $q3_pgs = ceil(($tot_pgs - $cur_pg - $q4_pgs) * 3/4);
1267                 $q1_pgs += floor($extra_pgs / 2);
1268                 $q2_pgs += ceil($extra_pgs / 2);
1269             }
1270         }
1271
1272         /*
1273         * I am leaving this debug code here, commented out, because
1274         * it is a really nice way to see what the above code is doing.
1275         * echo "qts =  $q1_pgs/$q2_pgs/$q3_pgs/$q4_pgs = "
1276         *    . ($q1_pgs + $q2_pgs + $q3_pgs + $q4_pgs) . '<br />';
1277         */
1278
1279         /* Print out the page links from the compute page quarters. */
1280
1281         /* Start with the first quarter. */
1282         if (($q1_pgs == 0) && ($cur_pg > 1)) {
1283             $pg_str .= "...$spc";
1284         } else {
1285             for ($pg = 1; $pg <= $q1_pgs; ++$pg) {
1286                 $start = (($pg-1) * $show_num) + 1;
1287                 $pg_str .= get_paginator_link($box, $start, $use, $pg) . $spc;
1288             }
1289             if ($cur_pg - $q2_pgs - $q1_pgs > 1) {
1290                 $pg_str .= "...$spc";
1291             }
1292         }
1293
1294         /* Continue with the second quarter. */
1295         for ($pg = $cur_pg - $q2_pgs; $pg < $cur_pg; ++$pg) {
1296             $start = (($pg-1) * $show_num) + 1;
1297             $pg_str .= get_paginator_link($box, $start, $use, $pg) . $spc;
1298         }
1299
1300         /* Now print the current page. */
1301         $pg_str .= $cur_pg . $spc;
1302
1303         /* Next comes the third quarter. */
1304         for ($pg = $cur_pg + 1; $pg <= $cur_pg + $q3_pgs; ++$pg) {
1305             $start = (($pg-1) * $show_num) + 1;
1306             $pg_str .= get_paginator_link($box, $start, $use, $pg) . $spc;
1307         }
1308
1309         /* And last, print the forth quarter page links. */
1310         if (($q4_pgs == 0) && ($cur_pg < $tot_pgs)) {
1311             $pg_str .= "...$spc";
1312         } else {
1313             if (($tot_pgs - $q4_pgs) > ($cur_pg + $q3_pgs)) {
1314                 $pg_str .= "...$spc";
1315             }
1316             for ($pg = $tot_pgs - $q4_pgs + 1; $pg <= $tot_pgs; ++$pg) {
1317                 $start = (($pg-1) * $show_num) + 1;
1318                 $pg_str .= get_paginator_link($box, $start, $use, $pg) . $spc;
1319             }
1320         }
1321     } else if ($PG_SHOWNUM == 999999) {
1322         $pg_str = "<a href=\"right_main.php?PG_SHOWALL=0"
1323                 . "&amp;use_mailbox_cache=$use&amp;startMessage=1&amp;mailbox=$box\" "
1324                 . ">" ._("Paginate") . '</a>';
1325     }
1326
1327     /* Put all the pieces of the paginator string together. */
1328     /**
1329     * Hairy code... But let's leave it like it is since I am not certain
1330     * a different approach would be any easier to read. ;)
1331     */
1332     $result = '';
1333     if ( $prv_str != '' || $nxt_str != '' )
1334     {
1335     $result .= '[';
1336     $result .= ($prv_str != '' ? $prv_str . $spc . $sep . $spc : '');
1337     $result .= ($nxt_str != '' ? $nxt_str : '');
1338     $result .= ']' . $spc ;
1339
1340     /* Compute the 'show all' string. */
1341     $all_str = "<a href=\"right_main.php?PG_SHOWALL=1"
1342                 . "&amp;use_mailbox_cache=$use&amp;startMessage=1&amp;mailbox=$box\" "
1343                 . ">" . _("Show All") . '</a>';
1344     }
1345
1346     $result .= ($pg_str  != '' ? $spc . '['.$spc.$pg_str.']' .  $spc : '');
1347     $result .= ($all_str != '' ? $spc . '['.$all_str.']' . $spc . $spc : '');
1348
1349     /* If the resulting string is blank, return a non-breaking space. */
1350     if ($result == '') {
1351         $result = '&nbsp;';
1352     }
1353
1354     /* Return our final magical paginator string. */
1355     return ($result);
1356 }
1357
1358 /**
1359 * FIXME: Undocumented function
1360 */
1361 function truncateWithEntities($subject, $trim_at)
1362 {
1363     $ent_strlen = strlen($subject);
1364     if (($trim_at <= 0) || ($ent_strlen <= $trim_at))
1365         return $subject;
1366
1367     global $languages, $squirrelmail_language;
1368
1369     /*
1370     * see if this is entities-encoded string
1371     * If so, Iterate through the whole string, find out
1372     * the real number of characters, and if more
1373     * than $trim_at, substr with an updated trim value.
1374     */
1375     $trim_val = $trim_at;
1376     $ent_offset = 0;
1377     $ent_loc = 0;
1378     while ( $ent_loc < $trim_val && (($ent_loc = strpos($subject, '&', $ent_offset)) !== false) &&
1379             (($ent_loc_end = strpos($subject, ';', $ent_loc+3)) !== false) ) {
1380         $trim_val += ($ent_loc_end-$ent_loc);
1381         $ent_offset  = $ent_loc_end+1;
1382     }
1383     if (($trim_val > $trim_at) && ($ent_strlen > $trim_val) && (strpos($subject,';',$trim_val) < ($trim_val + 6))) {
1384         $i = strpos($subject,';',$trim_val);
1385         if ($i) {
1386             $trim_val = strpos($subject,';',$trim_val);
1387         }
1388     }
1389     // only print '...' when we're actually dropping part of the subject
1390     if ($ent_strlen <= $trim_val)
1391         return $subject;
1392
1393     if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
1394         function_exists($languages[$squirrelmail_language]['XTRA_CODE'])) {
1395         return $languages[$squirrelmail_language]['XTRA_CODE']('strimwidth', $subject, $trim_val);
1396     }
1397
1398     return substr_replace($subject, '...', $trim_val);
1399 }
1400
1401 /**
1402 * FIXME: Undocumented function
1403 */
1404 function processSubject($subject, $threadlevel = 0) {
1405     /* Shouldn't ever happen -- caught too many times in the IMAP functions */
1406     if ($subject == '') {
1407         return _("(no subject)");
1408     }
1409
1410     global $truncate_subject;     /* number of characters for Subject field (<= 0 for unchanged) */
1411     $trim_at = $truncate_subject;
1412
1413     /* if this is threaded, subtract two chars per indentlevel */
1414     if (($threadlevel > 0) && ($threadlevel <= 10))
1415         $trim_at -= (2*$threadlevel);
1416
1417     return truncateWithEntities($subject, $trim_at);
1418 }
1419
1420 /**
1421 * FIXME: Undocumented function
1422 *
1423 * @param mixed $imapConnection
1424 * @param mixed $boxes
1425 */
1426 function getMbxList($imapConnection, $boxes = 0) {
1427     global $lastTargetMailbox;
1428     echo  '         <small>&nbsp;<tt><select name="targetMailbox">';
1429     echo sqimap_mailbox_option_list($imapConnection, array(strtolower($lastTargetMailbox)), 0, $boxes);
1430     echo '         </select></tt>&nbsp;';
1431 }
1432
1433 /**
1434 * Creates button
1435 *
1436 * @deprecated see form functions available in 1.5.1 and 1.4.3.
1437 * @param string $type
1438 * @param string $name
1439 * @param string $value
1440 * @param string $js
1441 * @param bool $enabled
1442 */
1443 function getButton($type, $name, $value, $js = '', $enabled = TRUE) {
1444     $disabled = ( $enabled ? '' : 'disabled ' );
1445     $js = ( $js ? $js.' ' : '' );
1446     return '<input '.$disabled.$js.
1447             'type="'.$type.
1448             '" name="'.$name.
1449             '" value="'.$value .
1450             '" style="padding: 0px; margin: 0px" />';
1451 }
1452
1453 /**
1454 * Puts string into cell, aligns it and adds <small> tag
1455 *
1456 * @param string $string string
1457 * @param string $align alignment
1458 */
1459 function getSmallStringCell($string, $align) {
1460     return html_tag('td',
1461                     '<small>' . $string . ':&nbsp; </small>',
1462                     $align,
1463                     '',
1464                     'nowrap' );
1465 }
1466
1467 /**
1468 * This should go in imap_mailbox.php
1469 * @param string $mailbox
1470 */
1471 function handleAsSent($mailbox) {
1472     global $handleAsSent_result;
1473
1474     /* First check if this is the sent or draft folder. */
1475     $handleAsSent_result = isSentMailbox($mailbox) || isDraftMailbox($mailbox);
1476
1477     /* Then check the result of the handleAsSent hook. */
1478     do_hook('check_handleAsSent_result', $mailbox);
1479
1480     /* And return the result. */
1481     return $handleAsSent_result;
1482 }
1483
1484 ?>