src/compose.php

   1 <?php
   2    /**
   3     ** compose.php
   4     **
   5     **  Copyright (c) 1999-2000 The SquirrelMail development team
   6     **  Licensed under the GNU GPL. For full terms see the file COPYING.
   7     **
   8     ** This code sends a mail.
   9     **
  10     ** There are 3 modes of operation:
  11     **  - Start new mail
  12     **  - Add an attachment
  13     **  - Send mail
  14     **
  15     ** $Id$
  16     **/
  17
  18    require_once('../src/validate.php');
  19    require_once('../functions/imap.php');
  20    require_once('../functions/date.php');
  21    require_once('../functions/mime.php');
  22    require_once('../functions/smtp.php');
  23    require_once('../functions/display_messages.php');
  24    require_once('../functions/plugin.php');
  25
  26    if (!isset($attachments))
  27    {
  28        $attachments = array();
  29        session_register('attachments');
  30    }
  31
  32
  33    // This function is used when not sending or adding attachments
  34    function newMail () {
  35       global $forward_id, $imapConnection, $msg, $ent_num, $body_ary, $body,
  36              $reply_id, $send_to, $send_to_cc, $mailbox, $send_to_bcc, $editor_size;
  37
  38       $send_to = decodeHeader($send_to);
  39       $send_to_cc = decodeHeader($send_to_cc);
  40       $send_to_bcc = decodeHeader($send_to_bcc);
  41
  42       if ($forward_id)
  43          $id = $forward_id;
  44       elseif ($reply_id)
  45          $id = $reply_id;
  46
  47
  48       if (isset($id)) {
  49          sqimap_mailbox_select($imapConnection, $mailbox);
  50          $message = sqimap_get_message($imapConnection, $id, $mailbox);
  51          $orig_header = $message->header;
  52          if ($ent_num)
  53             $message = getEntity($message, $ent_num);
  54
  55          if ($message->header->type0 == 'text' || $message->header->type1 == 'message') {
  56             if ($ent_num)
  57                $body = decodeBody(mime_fetch_body($imapConnection, $id, $ent_num), $message->header->encoding);
  58             else
  59                $body = decodeBody(mime_fetch_body($imapConnection, $id, 1), $message->header->encoding);
  60          } else {
  61             $body = "";
  62          }
  63
  64          if ($message->header->type1 == "html")
  65             $body = strip_tags($body);
  66
  67          sqUnWordWrap($body);
  68          $body_ary = explode("\n", $body);
  69          $i = count($body_ary) - 1;
  70          while ($i >= 0 && ereg("^[>\\s]*$", $body_ary[$i])) {
  71             unset($body_ary[$i]);
  72             $i --;
  73          }
  74          $body = "";
  75          for ($i=0; isset($body_ary[$i]); $i++) {
  76             if (! $forward_id)
  77             {
  78                 if (ereg('^[ >]+', $body_ary[$i]))
  79                 {
  80                     $body_ary[$i] = '>' . $body_ary[$i];
  81                 }
  82                 else
  83                 {
  84                     $body_ary[$i] = '> ' . $body_ary[$i];
  85                 }
  86             }
  87             sqWordWrap($body_ary[$i], $editor_size - 1);
  88             $body .= $body_ary[$i] . "\n";
  89             unset($body_ary[$i]);
  90          }
  91          if ($forward_id)
  92          {
  93              $bodyTop =  "-------- " . _("Original Message") . " --------\n";
  94              $bodyTop .= _("Subject") . ": " . $orig_header->subject . "\n";
  95              $bodyTop .= _("From") . ": " . $orig_header->from . "\n";
  96              $bodyTop .= _("To") . ": " . $orig_header->to[0] . "\n";
  97              if (count($orig_header->to) > 1) {
  98                  for ($x=1; $x < count($orig_header->to); $x++) {
  99                      $bodyTop .= "         " . $orig_header->to[$x] . "\n";
 100                  }
 101              }
 102              $bodyTop .= "\n";
 103              $body = $bodyTop . $body;
 104          } else if ($reply_id) {
 105              $orig_from = decodeHeader($orig_header->from);
 106              $orig_from = trim(substr($orig_from,0,strpos($orig_from,'<')));
 107              $orig_from = str_replace('"','',$orig_from);
 108              $orig_from = str_replace("'",'',$orig_from);
 109              $body = getReplyCitation($orig_from) . $body;
 110          }
 111
 112          return;
 113       }
 114
 115       if (!$send_to) {
 116          $send_to = sqimap_find_email($send_to);
 117       }
 118
 119       /** This formats a CC string if they hit "reply all" **/
 120       if ($send_to_cc != "") {
 121          $send_to_cc = ereg_replace( '"[^"]*"', "", $send_to_cc);
 122          $send_to_cc = ereg_replace(";", ",", $send_to_cc);
 123          $sendcc = explode(",", $send_to_cc);
 124          $send_to_cc = "";
 125
 126          for ($i = 0; $i < count($sendcc); $i++) {
 127             $sendcc[$i] = trim($sendcc[$i]);
 128             if ($sendcc[$i] == "")
 129                continue;
 130
 131             $sendcc[$i] = sqimap_find_email($sendcc[$i]);
 132             $whofrom = sqimap_find_displayable_name($msg["HEADER"]["FROM"]);
 133             $whoreplyto = sqimap_find_email($msg["HEADER"]["REPLYTO"]);
 134
 135             if ((strtolower(trim($sendcc[$i])) != strtolower(trim($whofrom))) &&
 136                 (strtolower(trim($sendcc[$i])) != strtolower(trim($whoreplyto))) &&
 137                 (trim($sendcc[$i]) != "")) {
 138                $send_to_cc .= trim($sendcc[$i]) . ", ";
 139             }
 140          }
 141          $send_to_cc = trim($send_to_cc);
 142          if (substr($send_to_cc, -1) == ",") {
 143             $send_to_cc = substr($send_to_cc, 0, strlen($send_to_cc) - 1);
 144          }
 145       }
 146    } // function newMail()
 147
 148    function getAttachments($message) {
 149       global $mailbox, $attachments, $attachment_dir, $imapConnection,
 150              $ent_num, $forward_id;
 151
 152       if (!$message) {
 153            sqimap_mailbox_select($imapConnection, $mailbox);
 154            $message = sqimap_get_message($imapConnection, $forward_id,
 155                $mailbox);
 156       }
 157
 158       if (count($message->entities) == 0) {
 159           if ($message->header->entity_id != $ent_num) {
 160               $filename = decodeHeader($message->header->filename);
 161
 162               if ($filename == "")
 163                   $filename = "untitled-".$message->header->entity_id;
 164
 165               $localfilename = GenerateRandomString(32, '', 7);
 166               while (file_exists($attachment_dir . $localfilename))
 167                   $localfilename = GenerateRandomString(32, '', 7);
 168
 169               $newAttachment = array();
 170               $newAttachment['localfilename'] = $localfilename;
 171               $newAttachment['remotefilename'] = $filename;
 172               $newAttachment['type'] = strtolower($message->header->type0 .
 173                  '/' . $message->header->type1);
 174
 175               // Write Attachment to file
 176               $fp = fopen ($attachment_dir.$localfilename, 'w');
 177               fputs ($fp, decodeBody(mime_fetch_body($imapConnection,
 178                   $forward_id, $message->header->entity_id),
 179                   $message->header->encoding));
 180               fclose ($fp);
 181
 182               $attachments[] = $newAttachment;
 183           }
 184       } else {
 185           for ($i = 0; $i < count($message->entities); $i++) {
 186               getAttachments($message->entities[$i]);
 187           }
 188       }
 189       return;
 190    }
 191
 192    function showInputForm () {
 193       global $send_to, $send_to_cc, $reply_subj, $forward_subj, $body,
 194          $passed_body, $color, $use_signature, $signature, $prefix_sig,
 195          $editor_size, $attachments, $subject, $newmail,
 196          $use_javascript_addr_book, $send_to_bcc, $reply_id, $mailbox,
 197          $from_htmladdr_search, $location_of_buttons, $attachment_dir,
 198          $username, $data_dir, $identity;
 199
 200       $subject = decodeHeader($subject);
 201       $reply_subj = decodeHeader($reply_subj);
 202       $forward_subj = decodeHeader($forward_subj);
 203
 204       if ($use_javascript_addr_book) {
 205          echo "\n<SCRIPT LANGUAGE=JavaScript><!--\n";
 206          echo "function open_abook() { \n";
 207          echo "  var nwin = window.open(\"addrbook_popup.php\",\"abookpopup\",";
 208          echo "\"width=670,height=300,resizable=yes,scrollbars=yes\");\n";
 209          echo "  if((!nwin.opener) && (document.windows != null))\n";
 210          echo "    nwin.opener = document.windows;\n";
 211          echo "}\n";
 212          echo "// --></SCRIPT>\n\n";
 213       }
 214
 215       echo "\n<FORM name=compose action=\"compose.php\" METHOD=POST ENCTYPE=\"multipart/form-data\"";
 216       do_hook("compose_form");
 217           echo ">\n";
 218
 219       echo "<TABLE WIDTH=\"100%\" ALIGN=center CELLSPACING=0 BORDER=0>\n";
 220
 221       if ($location_of_buttons == 'top') showComposeButtonRow();
 222
 223       $idents = getPref($data_dir, $username, 'identities');
 224       if ($idents != '' && $idents > 1) {
 225          echo "   <TR>\n";
 226          echo "      <TD BGCOLOR=\"$color[4]\" WIDTH=\"10%\" ALIGN=RIGHT>\n";
 227          echo _("From:");
 228          echo "      </TD><TD BGCOLOR=\"$color[4]\" WIDTH=\"90%\">\n";
 229          echo "<select name=identity>\n";
 230          echo "<option value=default>" .
 231          htmlspecialchars(getPref($data_dir, $username, 'full_name'));
 232          $em = getPref($data_dir, $username, 'email_address');
 233          if ($em != '')
 234             echo htmlspecialchars(' <' . $em . '>') . "\n";
 235          for ($i = 1; $i < $idents; $i ++) {
 236             echo '<option value="' . $i . '"';
 237             if (isset($identity) && $identity == $i)
 238                echo ' SELECTED';
 239             echo '>';
 240             echo htmlspecialchars(getPref($data_dir, $username, 'full_name' .
 241                                         $i));
 242             $em = getPref($data_dir, $username, 'email_address' . $i);
 243             if ($em != '')
 244                echo htmlspecialchars(' <' . $em . '>') . "\n";
 245          }
 246          echo "</select>\n";
 247          echo "      </TD>\n";
 248          echo "   </TR>\n";
 249       }
 250       echo "   <TR>\n";
 251       echo "      <TD BGCOLOR=\"$color[4]\" WIDTH=\"10%\" ALIGN=RIGHT>\n";
 252       echo _("To:");
 253       echo "      </TD><TD BGCOLOR=\"$color[4]\" WIDTH=\"90%\">\n";
 254       printf("         <INPUT TYPE=text NAME=\"send_to\" VALUE=\"%s\" SIZE=60><BR>\n",
 255              htmlspecialchars($send_to));
 256       echo "      </TD>\n";
 257       echo "   </TR>\n";
 258       echo "   <TR>\n";
 259       echo "      <TD BGCOLOR=\"$color[4]\" ALIGN=RIGHT>\n";
 260       echo _("CC:");
 261       echo "      </TD><TD BGCOLOR=\"$color[4]\" ALIGN=LEFT>\n";
 262       printf("         <INPUT TYPE=text NAME=\"send_to_cc\" SIZE=60 VALUE=\"%s\"><BR>\n",
 263              htmlspecialchars($send_to_cc));
 264       echo "      </TD>\n";
 265       echo "   </TR>\n";
 266       echo "   <TR>\n";
 267       echo "      <TD BGCOLOR=\"$color[4]\" ALIGN=RIGHT>\n";
 268       echo _("BCC:");
 269       echo "      </TD><TD BGCOLOR=\"$color[4]\" ALIGN=LEFT>\n";
 270       printf("         <INPUT TYPE=text NAME=\"send_to_bcc\" VALUE=\"%s\" SIZE=60><BR>\n",
 271              htmlspecialchars($send_to_bcc));
 272       echo "</TD></TR>\n";
 273
 274       echo "   <TR>\n";
 275       echo "      <TD BGCOLOR=\"$color[4]\" ALIGN=RIGHT>\n";
 276       echo _("Subject:");
 277       echo "      </TD><TD BGCOLOR=\"$color[4]\" ALIGN=LEFT>\n";
 278       if ($reply_subj) {
 279          $reply_subj = str_replace("\"", "'", $reply_subj);
 280          $reply_subj = trim($reply_subj);
 281          if (substr(strtolower($reply_subj), 0, 3) != "re:")
 282             $reply_subj = "Re: $reply_subj";
 283          printf("         <INPUT TYPE=text NAME=subject SIZE=60 VALUE=\"%s\">",
 284                 htmlspecialchars($reply_subj));
 285       } else if ($forward_subj) {
 286          $forward_subj = trim($forward_subj);
 287          if ((substr(strtolower($forward_subj), 0, 4) != 'fwd:') &&
 288              (substr(strtolower($forward_subj), 0, 5) != '[fwd:') &&
 289              (substr(strtolower($forward_subj), 0, 6) != '[ fwd:'))
 290             $forward_subj = "[Fwd: $forward_subj]";
 291          printf("         <INPUT TYPE=text NAME=subject SIZE=60 VALUE=\"%s\">",
 292                 htmlspecialchars($forward_subj));
 293       } else {
 294           printf("         <INPUT TYPE=text NAME=subject SIZE=60 VALUE=\"%s\">",
 295                 htmlspecialchars($subject));
 296       }
 297       echo "</td></tr>\n\n";
 298
 299       if ($location_of_buttons == 'between') showComposeButtonRow();
 300
 301       echo "   <TR>\n";
 302       echo "      <TD BGCOLOR=\"$color[4]\" COLSPAN=2>\n";
 303       echo "         &nbsp;&nbsp;<TEXTAREA NAME=body ROWS=20 COLS=\"$editor_size\" WRAP=HARD>";
 304       echo htmlspecialchars($body);
 305       if ($use_signature == true && $newmail == true && !isset($from_htmladdr_search)) {
 306         if ( $prefix_sig == true )
 307           echo "\n\n-- \n" . htmlspecialchars($signature);
 308         else
 309           echo "\n\n" . htmlspecialchars($signature);
 310       }
 311       echo "</TEXTAREA><BR>\n";
 312       echo "      </TD>\n";
 313       echo "   </TR>\n";
 314
 315       if ($location_of_buttons == 'bottom')
 316          showComposeButtonRow();
 317       else {
 318          echo "   <TR><TD>&nbsp;</TD><TD ALIGN=LEFT><INPUT TYPE=SUBMIT NAME=send VALUE=\""._("Send")."\"></TD></TR>\n";
 319       }
 320
 321       // This code is for attachments
 322       echo "   <tr>\n";
 323       echo "     <TD BGCOLOR=\"$color[0]\" VALIGN=TOP ALIGN=RIGHT>\n";
 324       echo "      <SMALL><BR></SMALL>"._("Attach:");
 325       echo "      </td><td ALIGN=left BGCOLOR=\"$color[0]\">\n";
 326       echo "      <INPUT NAME=\"attachfile\" SIZE=48 TYPE=\"file\">\n";
 327       echo "      &nbsp;&nbsp;<input type=\"submit\" name=\"attach\"";
 328       echo " value=\"" . _("Add") ."\">\n";
 329       echo "     </td>\n";
 330       echo "   </tr>\n";
 331       if (count($attachments))
 332       {
 333          echo "<tr><td bgcolor=\"$color[0]\" align=right>\n";
 334          echo "&nbsp;";
 335          echo "</td><td align=left bgcolor=\"$color[0]\">";
 336          foreach ($attachments as $key => $info) {
 337             echo "<input type=\"checkbox\" name=\"delete[]\" value=\"$key\">\n";
 338             echo $info['remotefilename'] . " - " . $info['type'] . " (";
 339             echo show_readable_size(filesize($attachment_dir .
 340                 $info['localfilename'])) . ")<br>\n";
 341          }
 342
 343          echo "<input type=\"submit\" name=\"do_delete\" value=\""._("Delete selected attachments")."\">\n";
 344          echo "</td></tr>";
 345       }
 346       // End of attachment code
 347
 348       echo "</TABLE>\n";
 349       if ($reply_id) {
 350          echo "<input type=hidden name=reply_id value=$reply_id>\n";
 351       }
 352       printf("<INPUT TYPE=hidden NAME=mailbox VALUE=\"%s\">\n", htmlspecialchars($mailbox));
 353       echo "</FORM>";
 354       do_hook("compose_bottom");
 355    }
 356
 357    function showComposeButtonRow() {
 358       global $use_javascript_addr_book;
 359
 360       echo "   <TR><td>\n   </td><td>\n";
 361       if ($use_javascript_addr_book) {
 362          echo "      <SCRIPT LANGUAGE=JavaScript><!--\n document.write(\"";
 363          echo "         <input type=button value=\\\""._("Addresses")."\\\" onclick='javascript:open_abook();'>\");";
 364          echo "         // --></SCRIPT><NOSCRIPT>\n";
 365          echo "         <input type=submit name=\"html_addr_search\" value=\""._("Addresses")."\">";
 366          echo "      </NOSCRIPT>\n";
 367       } else {
 368          echo "      <input type=submit name=\"html_addr_search\" value=\""._("Addresses")."\">";
 369       }
 370       echo "\n    <INPUT TYPE=SUBMIT NAME=send VALUE=\"". _("Send") . "\">\n";
 371
 372       do_hook("compose_button_row");
 373
 374       echo "   </TD>\n";
 375       echo "   </TR>\n\n";
 376    }
 377
 378    function checkInput ($show) {
 379       /** I implemented the $show variable because the error messages
 380           were getting sent before the page header.  So, I check once
 381           using $show=false, and then when i'm ready to display the
 382           error message, show=true **/
 383       global $body, $send_to, $subject, $color;
 384
 385       if ($send_to == "") {
 386          if ($show)
 387             plain_error_message(_("You have not filled in the \"To:\" field."), $color);
 388          return false;
 389       }
 390       return true;
 391    } // function checkInput()
 392
 393
 394    // True if FAILURE
 395    function saveAttachedFiles() {
 396       global $HTTP_POST_FILES, $attachment_dir, $attachments;
 397
 398       $localfilename = GenerateRandomString(32, '', 7);
 399       while (file_exists($attachment_dir . $localfilename))
 400           $localfilename = GenerateRandomString(32, '', 7);
 401
 402       if (!@rename($HTTP_POST_FILES['attachfile']['tmp_name'], $attachment_dir.$localfilename)) {
 403          if (!@copy($HTTP_POST_FILES['attachfile']['tmp_name'], $attachment_dir.$localfilename)) {
 404             return true;
 405          }
 406       }
 407
 408       $newAttachment['localfilename'] = $localfilename;
 409       $newAttachment['remotefilename'] = $HTTP_POST_FILES['attachfile']['name'];
 410       $newAttachment['type'] =
 411          strtolower($HTTP_POST_FILES['attachfile']['type']);
 412
 413       if ($newAttachment['type'] == "")
 414          $newAttachment['type'] = 'application/octet-stream';
 415
 416       $attachments[] = $newAttachment;
 417     }
 418
 419    if (!isset($mailbox) || $mailbox == "" || ($mailbox == "None"))
 420       $mailbox = "INBOX";
 421
 422    if (isset($send)) {
 423       if (isset($HTTP_POST_FILES['attachfile']) &&
 424           $HTTP_POST_FILES['attachfile']['tmp_name'] &&
 425           $HTTP_POST_FILES['attachfile']['tmp_name'] != 'none')
 426           $AttachFailure = saveAttachedFiles();
 427       if (checkInput(false) && !isset($AttachFailure)) {
 428          $urlMailbox = urlencode (trim($mailbox));
 429          if (! isset($reply_id))
 430              $reply_id = 0;
 431          // Set $default_charset to correspond with the user's selection
 432          // of language interface.
 433          set_my_charset();
 434
 435          // This is to change all newlines to \n
 436          // We'll change them to \r\n later (in the sendMessage function)
 437          $body = str_replace("\r\n", "\n", $body);
 438          $body = str_replace("\r", "\n", $body);
 439
 440          // Rewrap $body so that no line is bigger than $editor_size
 441          // This should only really kick in the sqWordWrap function
 442          // if the browser doesn't support "HARD" as the wrap type
 443          // Or, in Opera's case, something goes wrong.
 444          $body = explode("\n", $body);
 445          $newBody = '';
 446          foreach ($body as $line) {
 447             if( $line <> '-- ' )
 448                $line = rtrim($line);
 449             if (strlen($line) <= $editor_size + 1)
 450                $newBody .= $line . "\n";
 451             else {
 452                sqWordWrap($line, $editor_size) . "\n";
 453                $newBody .= $line;
 454             }
 455          }
 456          $body = $newBody;
 457
 458          do_hook("compose_send");
 459
 460          if (! sendMessage($send_to, $send_to_cc, $send_to_bcc, $subject, $body, $reply_id)) {
 461             showInputForm();
 462             exit();
 463          }
 464          Header("Location: right_main.php?mailbox=$urlMailbox&sort=$sort&startMessage=1");
 465       } else {
 466          //$imapConnection = sqimap_login($username, $key, $imapServerAddress, $imapPort, 0);
 467          displayPageHeader($color, $mailbox);
 468
 469          if (isset($AttachFailure))
 470              plain_error_message(_("Could not move/copy file. File not attached"), $color);
 471
 472          checkInput(true);
 473
 474          showInputForm();
 475          //sqimap_logout($imapConnection);
 476       }
 477    } else if (isset($html_addr_search_done)) {
 478       displayPageHeader($color, $mailbox);
 479
 480       if (isset($send_to_search) && is_array($send_to_search)) {
 481          foreach ($send_to_search as $k => $v) {
 482        if (substr($k, 0, 1) == 'T') {
 483                if ($send_to)
 484                   $send_to .= ', ';
 485                $send_to .= $v;
 486        }
 487        elseif (substr($k, 0, 1) == 'C') {
 488           if ($send_to_cc)
 489              $send_to_cc .= ', ';
 490           $send_to_cc .= $v;
 491        }
 492        elseif (substr($k, 0, 1) == 'B') {
 493           if ($send_to_bcc)
 494              $send_to_bcc .= ', ';
 495           $send_to_bcc .= $v;
 496        }
 497          }
 498       }
 499
 500       showInputForm();
 501    } else if (isset($html_addr_search)) {
 502       if (isset($HTTP_POST_FILES['attachfile']) &&
 503           $HTTP_POST_FILES['attachfile']['tmp_name'] &&
 504           $HTTP_POST_FILES['attachfile']['tmp_name'] != 'none')
 505       {
 506           if (saveAttachedFiles())
 507                 plain_error_message(_("Could not move/copy file. File not attached"), $color);
 508       }
 509       // I am using an include so as to elminiate an extra unnecessary click.  If you
 510       // can think of a better way, please implement it.
 511       include_once('./addrbook_search_html.php');
 512    } else if (isset($attach)) {
 513       if (saveAttachedFiles())
 514             plain_error_message(_("Could not move/copy file. File not attached"), $color);
 515       displayPageHeader($color, $mailbox);
 516       showInputForm();
 517    } else if (isset($do_delete)) {
 518       displayPageHeader($color, $mailbox);
 519
 520       if (isset($delete) && is_array($delete))
 521       {
 522          foreach($delete as $index)
 523          {
 524             unlink ($attachment_dir.$attachments[$index]['localfilename']);
 525             unset ($attachments[$index]);
 526          }
 527       }
 528
 529       showInputForm();
 530    } else {
 531       // This handles the default case as well as the error case
 532       // (they had the same code) --> if (isset($smtpErrors))
 533       $imapConnection = sqimap_login($username, $key, $imapServerAddress,
 534           $imapPort, 0);
 535       displayPageHeader($color, $mailbox);
 536
 537       $newmail = true;
 538
 539       ClearAttachments();
 540
 541       if (isset($forward_id) && $forward_id && isset($ent_num) && $ent_num)
 542           getAttachments(0);
 543
 544       newMail();
 545       showInputForm();
 546       sqimap_logout($imapConnection);
 547    }
 548
 549    function ClearAttachments() {
 550        global $attachments, $attachment_dir;
 551
 552        foreach ($attachments as $info) {
 553            if (file_exists($attachment_dir . $info['localfilename'])) {
 554                unlink($attachment_dir . $info['localfilename']);
 555            }
 556        }
 557
 558        $attachments = array();
 559    }
 560
 561    function getReplyCitation($orig_from) {
 562       global $reply_citation_style, $reply_citation_start, $reply_citation_end;
 563
 564       /* First, return an empty string when no citation style selected. */
 565       if (($reply_citation_style == '') || ($reply_citation_style == 'none')) {
 566          return ('');
 567       }
 568
 569       /* Otherwise, try to select the desired citation style. */
 570       switch ($reply_citation_style) {
 571          case 'author_said':
 572             $start = '';
 573             $end   = ' ' . _("said") . ':';
 574             break;
 575          case 'quote_who':
 576             $start = '<' . _("quote") . ' ' . _("who") . '="';
 577             $end   = '">';
 578             break;
 579          case 'user-defined':
 580             $start = $reply_citation_start;
 581             $end   = $reply_citation_end;
 582             break;
 583          default: return ('');
 584       }
 585
 586       /* Build and return the citation string. */
 587       return ($start . $orig_from . $end . "\n");
 588    }
 589 ?>