compose.inc

开源邮件管理系统

<?php

/*
 +-----------------------------------------------------------------------+
 | program/steps/mail/compose.inc                                        |
 |                                                                       |
 | This file is part of the RoundCube Webmail client                     |
 | Copyright (C) 2005-2008, RoundCube Dev. - Switzerland                 |
 | Licensed under the GNU GPL                                            |
 |                                                                       |
 | PURPOSE:                                                              |
 |   Compose a new mail message with all headers and attachments         |
 |                                                                       |
 +-----------------------------------------------------------------------+
 | Author: Thomas Bruederli <[e-mail]>                        |
 +-----------------------------------------------------------------------+

 $Id: compose.inc 1493 2008-06-08 18:17:09Z alec $

*/

// define constants for message compose mode
define('RCUBE_COMPOSE_REPLY', 0x0106);
define('RCUBE_COMPOSE_FORWARD', 0x0107);
define('RCUBE_COMPOSE_DRAFT', 0x0108);


// remove an attachment
if ($RCMAIL->action=='remove-attachment' && preg_match('/^rcmfile([0-9]+)$/', $_POST['_file'], $regs))
{
  $id = $regs[1];
  if (is_array($_SESSION['compose']['attachments'][$id]))
  {
    @unlink($_SESSION['compose']['attachments'][$id]['path']);
    $_SESSION['compose']['attachments'][$id] = NULL;
    $OUTPUT->command('remove_from_attachment_list', "rcmfile$id");
    $OUTPUT->send();
    exit;
  }
}

if ($RCMAIL->action=='display-attachment' && preg_match('/^rcmfile([0-9]+)$/', $_GET['_file'], $regs))
{
  $id = $regs[1];
  if (is_array($_SESSION['compose']['attachments'][$id]))
  {
    $apath = $_SESSION['compose']['attachments'][$id]['path'];
    header('Content-Type: ' . $_SESSION['compose']['attachments'][$id]['mimetype']);
    header('Content-Length: ' . filesize($apath));
    readfile($apath);
  }
  exit;
}

$MESSAGE_FORM = NULL;
$MESSAGE = NULL;

// Nothing below is called during message composition, only at "new/forward/reply/draft" initialization or
// if a compose-ID is given (i.e. when the compose step is opened in a new window/tab).
// Since there are many ways to leave the compose page improperly, it seems necessary to clean-up an old
// compose when a "new/forward/reply/draft" is called - otherwise the old session attachments will appear

if (!is_array($_SESSION['compose']) || $_SESSION['compose']['id'] != get_input_value('_id', RCUBE_INPUT_GET))
{
  rcmail_compose_cleanup();
  $_SESSION['compose'] = array('id' => uniqid(rand()));
}

// add some labels to client
rcube_add_label('nosubject', 'norecipientwarning', 'nosubjectwarning', 'nobodywarning', 'notsentwarning', 'savingmessage', 'sendingmessage', 'messagesaved', 'converting');

// add config parameter to client script
$OUTPUT->set_env('draft_autosave', !empty($CONFIG['drafts_mbox']) ? $CONFIG['draft_autosave'] : 0);


// get reference message and set compose mode
if ($msg_uid = get_input_value('_reply_uid', RCUBE_INPUT_GET))
  $compose_mode = RCUBE_COMPOSE_REPLY;
else if ($msg_uid = get_input_value('_forward_uid', RCUBE_INPUT_GET))
  $compose_mode = RCUBE_COMPOSE_FORWARD;
else if ($msg_uid = get_input_value('_draft_uid', RCUBE_INPUT_GET))
  $compose_mode = RCUBE_COMPOSE_DRAFT;

if (!empty($msg_uid))
{
  // similar as in program/steps/mail/show.inc
  $MESSAGE = new rcube_message($msg_uid);
  
  if (!empty($MESSAGE->headers->charset))
    $IMAP->set_charset($MESSAGE->headers->charset);
    
  if ($compose_mode == RCUBE_COMPOSE_REPLY)
  {
    $_SESSION['compose']['reply_uid'] = $msg_uid;
    $_SESSION['compose']['reply_msgid'] = $MESSAGE->headers->messageID;
    $_SESSION['compose']['references']  = trim($MESSAGE->headers->references . " " . $MESSAGE->headers->messageID);

    if (!empty($_GET['_all']))
      $MESSAGE->reply_all = 1;
  }
  else if ($compose_mode == RCUBE_COMPOSE_FORWARD)
  {
    $_SESSION['compose']['forward_uid'] = $msg_uid;
  }
  else if ($compose_mode == RCUBE_COMPOSE_DRAFT)
  {
    $_SESSION['compose']['draft_uid'] = $msg_uid;
  }
}

/****** compose mode functions ********/


function rcmail_compose_headers($attrib)
{
  global $IMAP, $MESSAGE, $DB, $compose_mode;
  static $sa_recipients = array();

  list($form_start, $form_end) = get_form_tags($attrib);
  
  $out = '';
  $part = strtolower($attrib['part']);
  
  switch ($part)
  {
    case 'from':
      return rcmail_compose_header_from($attrib);

    case 'to':
      $fname = '_to';
      $header = 'to';
      
      // we have a set of recipients stored is session
      if (($mailto_id = get_input_value('_mailto', RCUBE_INPUT_GET)) && $_SESSION['mailto'][$mailto_id])
        $fvalue = $_SESSION['mailto'][$mailto_id];
      else if (!empty($_GET['_to']))
        $fvalue = get_input_value('_to', RCUBE_INPUT_GET);
        
    case 'cc':
      if (!$fname)
      {
        $fname = '_cc';
        $header = 'cc';
      }
    case 'bcc':
      if (!$fname)
      {
        $fname = '_bcc';
        $header = 'bcc';
      }
        
      $allow_attrib = array('id', 'class', 'style', 'cols', 'rows', 'tabindex');
      $field_type = 'html_textarea';
      break;

    case 'replyto':
    case 'reply-to':
      $fname = '_replyto';
      $allow_attrib = array('id', 'class', 'style', 'size', 'tabindex');
      $field_type = 'html_inputfield';
      break;    
  }
 
  if ($fname && !empty($_POST[$fname]))
    $fvalue = get_input_value($fname, RCUBE_INPUT_POST, TRUE);

  else if ($header && $compose_mode == RCUBE_COMPOSE_REPLY)
  {
    // get recipent address(es) out of the message headers
    if ($header=='to' && !empty($MESSAGE->headers->replyto))
      $fvalue = $MESSAGE->headers->replyto;

    else if ($header=='to' && !empty($MESSAGE->headers->from))
      $fvalue = $MESSAGE->headers->from;

    // add recipent of original message if reply to all
    else if ($header=='cc' && !empty($MESSAGE->reply_all))
    {
      if ($v = $MESSAGE->headers->to)
        $fvalue .= $v;

      if ($v = $MESSAGE->headers->cc)
        $fvalue .= (!empty($fvalue) ? ', ' : '') . $v;
    }

    // split recipients and put them back together in a unique way
    if (!empty($fvalue))
    {
      $to_addresses = $IMAP->decode_address_list($fvalue);
      $fvalue = '';
      foreach ($to_addresses as $addr_part)
      {
        if (!empty($addr_part['mailto']) && !in_array($addr_part['mailto'], $sa_recipients) && (!$MESSAGE->compose_from || !in_array($addr_part['mailto'], $MESSAGE->compose_from)))
        {
          $fvalue .= (strlen($fvalue) ? ', ':'').$addr_part['string'];
          $sa_recipients[] = $addr_part['mailto'];
        }
      }
    }
  }
  else if ($header && $compose_mode == RCUBE_COMPOSE_DRAFT)
  {
    // get drafted headers
    if ($header=='to' && !empty($MESSAGE->headers->to))
      $fvalue = $MESSAGE->get_header('to');

    if ($header=='cc' && !empty($MESSAGE->headers->cc))
      $fvalue = $MESSAGE->get_header('cc');

    if ($header=='bcc' && !empty($MESSAGE->headers->bcc))
      $fvalue = $MESSAGE->get_header('bcc');
  }

        
  if ($fname && $field_type)
  {
    // pass the following attributes to the form class
    $field_attrib = array('name' => $fname);
    foreach ($attrib as $attr => $value)
      if (in_array($attr, $allow_attrib))
        $field_attrib[$attr] = $value;

    // create teaxtarea object
    $input = new $field_type($field_attrib);
    $out = $input->show($fvalue);
  }
  
  if ($form_start)
    $out = $form_start.$out;

  return $out;  
}



function rcmail_compose_header_from($attrib)
{
  global $IMAP, $MESSAGE, $DB, $USER, $OUTPUT, $compose_mode;
    
  // pass the following attributes to the form class
  $field_attrib = array('name' => '_from');
  foreach ($attrib as $attr => $value)
    if (in_array($attr, array('id', 'class', 'style', 'size', 'tabindex')))
      $field_attrib[$attr] = $value;

  // extract all recipients of the reply-message
  $a_recipients = array();
  if ($compose_mode == RCUBE_COMPOSE_REPLY && is_object($MESSAGE->headers))
  {
    $MESSAGE->compose_from = array();

    $a_to = $IMAP->decode_address_list($MESSAGE->headers->to);
    foreach ($a_to as $addr)
    {
      if (!empty($addr['mailto']))
        $a_recipients[] = $addr['mailto'];
    }

    if (!empty($MESSAGE->headers->cc))
    {
      $a_cc = $IMAP->decode_address_list($MESSAGE->headers->cc);
      foreach ($a_cc as $addr)
      {
        if (!empty($addr['mailto']))
          $a_recipients[] = $addr['mailto'];
      }
    }
  }

  // get this user's identities
  $sql_result = $USER->list_identities();

  if ($DB->num_rows($sql_result))
  {
    $from_id = 0;
    $a_signatures = array();

    $field_attrib['onchange'] = JS_OBJECT_NAME.".change_identity(this)";
    $select_from = new html_select($field_attrib);

    while ($sql_arr = $DB->fetch_assoc($sql_result))
    {
      $identity_id = $sql_arr['identity_id'];
      $select_from->add(format_email_recipient($sql_arr['email'], $sql_arr['name']), $identity_id);

      // add signature to array
      if (!empty($sql_arr['signature']))
      {
        $a_signatures[$identity_id]['text'] = $sql_arr['signature'];
        $a_signatures[$identity_id]['is_html'] = ($sql_arr['html_signature'] == 1) ? true : false;
        if ($a_signatures[$identity_id]['is_html'])
        {
            $h2t = new html2text($a_signatures[$identity_id]['text'], false, false);
            $plainTextPart = $h2t->get_text();
            $a_signatures[$identity_id]['plain_text'] = trim(html_entity_decode($plainTextPart, ENT_NOQUOTES, 'UTF-8'));
        }
      }

      // set identity if it's one of the reply-message recipients
      if (in_array($sql_arr['email'], $a_recipients))
        $from_id = $sql_arr['identity_id'];

      if ($compose_mode == RCUBE_COMPOSE_REPLY && is_array($MESSAGE->compose_from))
        $MESSAGE->compose_from[] = $sql_arr['email'];

      if ($compose_mode == RCUBE_COMPOSE_DRAFT && strstr($MESSAGE->headers->from, $sql_arr['email']))
        $from_id = $sql_arr['identity_id'];
    }

    // overwrite identity selection with post parameter
    if (isset($_POST['_from']))
      $from_id = get_input_value('_from', RCUBE_INPUT_POST);

    $out = $select_from->show($from_id);

    // add signatures to client
    $OUTPUT->set_env('signatures', $a_signatures);
  }
  else
  {
    $input_from = new html_inputfield($field_attrib);
    $out = $input_from->show($_POST['_from']);
  }
  
  if ($form_start)
    $out = $form_start.$out;

  return $out;
}


function rcmail_compose_body($attrib)
{
  global $RCMAIL, $CONFIG, $OUTPUT, $MESSAGE, $compose_mode;
  
  list($form_start, $form_end) = get_form_tags($attrib);
  unset($attrib['form']);
  
  if (empty($attrib['id']))
    $attrib['id'] = 'rcmComposeMessage';

  $attrib['name'] = '_message';

  if ($CONFIG['htmleditor'])
    $isHtml = true;
  else
    $isHtml = false;

  $body = '';

  // use posted message body
  if (!empty($_POST['_message']))
  {
    $body = get_input_value('_message', RCUBE_INPUT_POST, true);
  }
  else if ($compose_mode)
  {
    if ($isHtml && $MESSAGE->has_html_part())
    {
      $body = $MESSAGE->first_html_part();
      $isHtml = true;
    }
    else
    {
      $body = $MESSAGE->first_text_part();
      $isHtml = false;
    }
    
    // compose reply-body
    if ($compose_mode == RCUBE_COMPOSE_REPLY)
      $body = rcmail_create_reply_body($body, $isHtml);
    // forward message body inline
    else if ($compose_mode == RCUBE_COMPOSE_FORWARD)
      $body = rcmail_create_forward_body($body, $isHtml);
    // load draft message body
    else if ($compose_mode == RCUBE_COMPOSE_DRAFT)
      $body = rcmail_create_draft_body($body, $isHtml);
  }

  $tinylang = substr($_SESSION['language'], 0, 2);
  if (!file_exists('program/js/tiny_mce/langs/'.$tinylang.'.js'))
    $tinylang = 'en'; 

  $OUTPUT->include_script('tiny_mce/tiny_mce.js');
  $OUTPUT->include_script("editor.js");
  $OUTPUT->add_script('rcmail_editor_init("$__skin_path", "'.$tinylang.'");');

  $out = $form_start ? "$form_start\n" : '';

  $saveid = new html_hiddenfield(array('name' => '_draft_saveid', 'value' => $compose_mode==RCUBE_COMPOSE_DRAFT ? str_replace(array('<','>'), "", $MESSAGE->headers->messageID) : ''));
  $out .= $saveid->show();

  $drafttoggle = new html_hiddenfield(array('name' => '_draft', 'value' => 'yes'));
  $out .= $drafttoggle->show();

  $msgtype = new html_hiddenfield(array('name' => '_is_html', 'value' => ($isHtml?"1":"0")));
  $out .= $msgtype->show();

  // If desired, set this text area to be editable by TinyMCE
  if ($isHtml) $attrib['class'] = "mce_editor";
  $textarea = new html_textarea($attrib);
  $out .= $textarea->show($body);
  $out .= $form_end ? "\n$form_end" : '';

  // include GoogieSpell
  if (!empty($CONFIG['enable_spellcheck']) && !$isHtml)
    {
    $lang_set = '';
    if (!empty($CONFIG['spellcheck_languages']) && is_array($CONFIG['spellcheck_languages']))
      $lang_set = "googie.setLanguages(".array2js($CONFIG['spellcheck_languages']).");\n";
    
    $OUTPUT->include_script('googiespell.js');
    $OUTPUT->add_script(sprintf(
      "var googie = new GoogieSpell('\$__skin_path/images/googiespell/','%s&_action=spell&lang=');\n".
      "googie.lang_chck_spell = \"%s\";\n".
      "googie.lang_rsm_edt = \"%s\";\n".
      "googie.lang_close = \"%s\";\n".
      "googie.lang_revert = \"%s\";\n".
      "googie.lang_no_error_found = \"%s\";\n%s".
      "googie.setCurrentLanguage('%s');\n".
      "googie.decorateTextarea('%s');\n".
      "%s.set_env('spellcheck', googie);",
      $RCMAIL->comm_path,
      JQ(Q(rcube_label('checkspelling'))),
      JQ(Q(rcube_label('resumeediting'))),
      JQ(Q(rcube_label('close'))),
      JQ(Q(rcube_label('revertto'))),
      JQ(Q(rcube_label('nospellerrors'))),
      $lang_set,
      substr($_SESSION['language'], 0, 2),
      $attrib['id'],
      JS_OBJECT_NAME), 'foot');