When using reply-all to reply to single-recipient message, make sure we still use...

[squirrelmail.git] / src / compose.php

<?php
/**
 * compose.php
 *
 * This code sends a mail.
 *
 * There are 4 modes of operation:
 *    - Start new mail
 *    - Add an attachment
 *    - Send mail
 *    - Save As Draft
 *
 * @copyright 1999-2012 The SquirrelMail Project Team
 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
 * @version $Id$
 * @package squirrelmail
 */

/** This is the compose page */
define('PAGE_NAME', 'compose');

/**
 * Include the SquirrelMail initialization file.
 */
require('../include/init.php');

/* If email_address not set and admin wants us to ask user for it,
 * redirect to options page. */
if ( $ask_user_info && getPref($data_dir, $username,'email_address') == "" ) {
    header("Location: " . get_location() . "/options.php?optpage=personal");
    exit;
}

/* SquirrelMail required files. */
require_once(SM_PATH . 'functions/imap_general.php');
require_once(SM_PATH . 'functions/imap_messages.php');
require_once(SM_PATH . 'functions/date.php');
require_once(SM_PATH . 'functions/mime.php');
require_once(SM_PATH . 'functions/compose.php');
require_once(SM_PATH . 'class/deliver/Deliver.class.php');
require_once(SM_PATH . 'functions/addressbook.php');
require_once(SM_PATH . 'functions/forms.php');
require_once(SM_PATH . 'functions/identity.php');

/* --------------------- Get globals ------------------------------------- */

/** SESSION VARS */
sqgetGlobalVar('delimiter', $delimiter,     SQ_SESSION);

sqgetGlobalVar('delayed_errors',  $delayed_errors,  SQ_SESSION);
sqgetGlobalVar('composesession',    $composesession,    SQ_SESSION);
sqgetGlobalVar('compose_messages',  $compose_messages,  SQ_SESSION);

// compose_messages only useful in SESSION when a forward-as-attachment
// has been preconstructed for us and passed in via that mechanism; once
// we have it, we can clear it from the SESSION
sqsession_unregister('compose_messages');

// Turn on delayed error handling in case we wind up redirecting below
$oErrorHandler->setDelayedErrors(true);

/** SESSION/POST/GET VARS */
sqgetGlobalVar('send_button_count', $send_button_count, SQ_POST, 1, SQ_TYPE_INT);
for ($i = 1; $i <= $send_button_count; $i++)
   if (sqgetGlobalVar('send' . $i, $send, SQ_POST)) break;
// Send can only be achieved by setting $_POST var. If Send = true then
// retrieve other form fields from $_POST
if (isset($send) && $send) {
    $SQ_GLOBAL = SQ_POST;
} else {
    $SQ_GLOBAL = SQ_FORM;
}
sqgetGlobalVar('session',$session, $SQ_GLOBAL);
sqgetGlobalVar('mailbox',$mailbox, $SQ_GLOBAL);
if(!sqgetGlobalVar('identity',$identity, $SQ_GLOBAL)) {
    $identity=0;
}
sqgetGlobalVar('send_to',$send_to, $SQ_GLOBAL);
sqgetGlobalVar('send_to_cc',$send_to_cc, $SQ_GLOBAL);
sqgetGlobalVar('send_to_bcc',$send_to_bcc, $SQ_GLOBAL);
sqgetGlobalVar('subject',$subject, $SQ_GLOBAL);
sqgetGlobalVar('body',$body, $SQ_GLOBAL);
sqgetGlobalVar('mailprio',$mailprio, $SQ_GLOBAL);
sqgetGlobalVar('request_mdn',$request_mdn, $SQ_GLOBAL);
sqgetGlobalVar('request_dr',$request_dr, $SQ_GLOBAL);
sqgetGlobalVar('html_addr_search',$html_addr_search, $SQ_GLOBAL);
sqgetGlobalVar('mail_sent',$mail_sent, $SQ_GLOBAL);
sqgetGlobalVar('passed_id',$passed_id, $SQ_GLOBAL, NULL, SQ_TYPE_BIGINT);
sqgetGlobalVar('passed_ent_id',$passed_ent_id, $SQ_GLOBAL);
sqgetGlobalVar('fwduid',$fwduid, $SQ_GLOBAL, '');

sqgetGlobalVar('attach',$attach, SQ_POST);
sqgetGlobalVar('draft',$draft, SQ_POST);
sqgetGlobalVar('draft_id',$draft_id, $SQ_GLOBAL);
sqgetGlobalVar('ent_num',$ent_num, $SQ_GLOBAL);
sqgetGlobalVar('saved_draft',$saved_draft, SQ_FORM);

if ( sqgetGlobalVar('delete_draft',$delete_draft) ) {
    $delete_draft = (int)$delete_draft;
}

if ( sqgetGlobalVar('startMessage',$startMessage) ) {
    $startMessage = (int)$startMessage;
} else {
    $startMessage = 1;
}


/** POST VARS */
sqgetGlobalVar('sigappend',             $sigappend,                 SQ_POST);
sqgetGlobalVar('from_htmladdr_search',  $from_htmladdr_search,      SQ_POST);
sqgetGlobalVar('addr_search_done',      $html_addr_search_done,     SQ_POST);
sqgetGlobalVar('addr_search_cancel',    $html_addr_search_cancel,   SQ_POST);
sqgetGlobalVar('send_to_search',        $send_to_search,            SQ_POST);
sqgetGlobalVar('do_delete',             $do_delete,                 SQ_POST);
sqgetGlobalVar('delete',                $delete,                    SQ_POST);
sqgetGlobalVar('attachments',           $attachments,               SQ_POST);
if ( sqgetGlobalVar('return', $temp, SQ_POST) ) {
    $html_addr_search_done = 'Use Addresses';
}

/** GET VARS */
if ( sqgetGlobalVar('account', $temp,  SQ_GET) ) {
    $iAccount = (int) $temp;
} else {
    $iAccount = 0;
}


/** get smaction */
if ( !sqgetGlobalVar('smaction',$action) )
{
    if ( sqgetGlobalVar('smaction_reply',$tmp) )      $action = 'reply';
    if ( sqgetGlobalVar('smaction_reply_all',$tmp) )  $action = 'reply_all';
    if ( sqgetGlobalVar('smaction_forward',$tmp) )    $action = 'forward';
    if ( sqgetGlobalVar('smaction_attache',$tmp) )    $action = 'forward_as_attachment';
    if ( sqgetGlobalVar('smaction_draft',$tmp) )      $action = 'draft';
    if ( sqgetGlobalVar('smaction_edit_new',$tmp) )   $action = 'edit_as_new';
}

sqgetGlobalVar('smtoken', $submitted_token, $SQ_GLOBAL, '');

/**
 * Here we decode the data passed in from mailto.php.
 */
if ( sqgetGlobalVar('mailtodata', $mailtodata, SQ_GET) ) {
    $trtable = array('to'       => 'send_to',
                 'cc'           => 'send_to_cc',
                 'bcc'          => 'send_to_bcc',
                 'body'         => 'body',
                 'subject'      => 'subject');
    $mtdata = unserialize($mailtodata);

    foreach ($trtable as $f => $t) {
        if ( !empty($mtdata[$f]) ) {
            $$t = $mtdata[$f];
        }
    }
    unset($mailtodata,$mtdata, $trtable);
}

/* Location (For HTTP 1.1 header("Location: ...") redirects) */
$location = get_location();
/* Identities (fetch only once) */
$idents = get_identities();

/* --------------------- Specific Functions ------------------------------ */

function replyAllString($header) {
    global $include_self_reply_all, $idents;
    $excl_ar = array();
    /**
     * 1) Remove the addresses we'll be sending the message 'to'
     */
    if (isset($header->reply_to)) {
        $excl_ar = $header->getAddr_a('reply_to');
    }
    /**
     * 2) Remove our identities from the CC list (they still can be in the
     * TO list) only if $include_self_reply_all is turned off
     */
    if (!$include_self_reply_all) {
        foreach($idents as $id) {
            $excl_ar[strtolower(trim($id['email_address']))] = '';
        }
    }

    /**
     * 3) get the addresses.
     */
    $url_replytoall_ar = $header->getAddr_a(array('to','cc'), $excl_ar);

    /**
     * 4) generate the string.
     */
    $url_replytoallcc = '';
    foreach( $url_replytoall_ar as $email => $personal) {
        if ($personal) {
            // always quote personal name (can't just quote it if
            // it contains a comma separator, since it might still
            // be encoded)
            $url_replytoallcc .= ", \"$personal\" <$email>";
        } else {
            $url_replytoallcc .= ', '. $email;
        }
    }
    $url_replytoallcc = substr($url_replytoallcc,2);

    return $url_replytoallcc;
}

/**
 * creates top line in reply citations
 *
 * Line style depends on user preferences.
 * $orig_date argument is available only from 1.4.3 and 1.5.1 version.
 * @param object $orig_from From: header object.
 * @param integer $orig_date email's timestamp
 * @return string reply citation
 */
function getReplyCitation($orig_from, $orig_date) {
    global $reply_citation_style, $reply_citation_start, $reply_citation_end;

    if (!is_object($orig_from)) {
        $sOrig_from = '';
    } else {
        $sOrig_from = decodeHeader($orig_from->getAddress(false),false,false,true);
    }

    /* First, return an empty string when no citation style selected. */
    if (($reply_citation_style == '') || ($reply_citation_style == 'none')) {
        return '';
    }

    /* Make sure our final value isn't an empty string. */
    if ($sOrig_from == '') {
        return '';
    }

    /* Otherwise, try to select the desired citation style. */
    switch ($reply_citation_style) {
    case 'author_said':
        // i18n: %s is for author's name
        $full_reply_citation = sprintf(_("%s wrote:"),$sOrig_from);
        break;
    case 'quote_who':
        $start = '<quote who="';
        $end   = '">';
        $full_reply_citation = $start . $sOrig_from . $end;
        break;
    case 'date_time_author':
        // i18n:
        // The first %s is for date string, the second %s is for author's name.
        // The date uses formating from "D, F j, Y g:i a" and "D, F j, Y H:i"
        // translations.
        // Example string:
        // "On Sat, December 24, 2004 23:59, Santa wrote:"
        // If you have to put author's name in front of date string, check comments about
        // argument swapping at http://php.net/sprintf
        $full_reply_citation = sprintf(_("On %s, %s wrote:"), getLongDateString($orig_date), $sOrig_from);
        break;
    case 'user-defined':
        $start = $reply_citation_start .
            ($reply_citation_start == '' ? '' : ' ');
        $end   = $reply_citation_end;
        $full_reply_citation = $start . $sOrig_from . $end;
        break;
    default:
        return '';
    }

    /* Add line feed and return the citation string. */
    return ($full_reply_citation . "\n");
}

/**
 * Creates header fields in forwarded email body
 *
 * $default_charset global must be set correctly before you call this function.
 * @param object $orig_header
 * @return $string
 */
function getforwardHeader($orig_header) {
    global $editor_size, $default_charset;

    // using own strlen function in order to detect correct string length
    $display = array( _("Subject") => sq_strlen(_("Subject"),$default_charset),
            _("From")    => sq_strlen(_("From"),$default_charset),
            _("Date")    => sq_strlen(_("Date"),$default_charset),
            _("To")      => sq_strlen(_("To"),$default_charset),
            _("Cc")      => sq_strlen(_("Cc"),$default_charset) );
    $maxsize = max($display);
    $indent = str_pad('',$maxsize+2);
    foreach($display as $key => $val) {
        $display[$key] = $key .': '. str_pad('', $maxsize - $val);
    }
    $from = decodeHeader($orig_header->getAddr_s('from',"\n$indent"),false,false,true);
    $from = str_replace('&nbsp;',' ',$from);
    $to = decodeHeader($orig_header->getAddr_s('to',"\n$indent"),false,false,true);
    $to = str_replace('&nbsp;',' ',$to);
    $subject = decodeHeader($orig_header->subject,false,false,true);
    $subject = str_replace('&nbsp;',' ',$subject);

    // using own str_pad function in order to create correct string pad
    $bodyTop =  sq_str_pad(' '._("Original Message").' ',$editor_size -2,'-',STR_PAD_BOTH,$default_charset) .
        "\n". $display[_("Subject")] . $subject . "\n" .
        $display[_("From")] . $from . "\n" .
        $display[_("Date")] . getLongDateString( $orig_header->date, $orig_header->date_unparsed ). "\n" .
        $display[_("To")] . $to . "\n";
    if ($orig_header->cc != array() && $orig_header->cc !='') {
        $cc = decodeHeader($orig_header->getAddr_s('cc',"\n$indent"),false,false,true);
        $cc = str_replace('&nbsp;',' ',$cc);
        $bodyTop .= $display[_("Cc")] .$cc . "\n";
    }
    $bodyTop .= str_pad('', $editor_size -2 , '-') .
        "\n\n";
    return $bodyTop;
}
/* ----------------------------------------------------------------------- */

/*
 * If the session is expired during a post this restores the compose session
 * vars.
 */
$session_expired = false;
if (sqsession_is_registered('session_expired_post')) {
    sqgetGlobalVar('session_expired_post', $session_expired_post, SQ_SESSION);
    /*
     * extra check for username so we don't display previous post data from
     * another user during this session.
     */
    if (!empty($session_expired_post['username']) 
     && $session_expired_post['username'] == $username) {
        // these are the vars that we can set from the expired composed session
        $compo_var_list = array ('send_to', 'send_to_cc', 'body',
            'startMessage', 'passed_body', 'use_signature', 'signature',
            'subject', 'newmail', 'send_to_bcc', 'passed_id', 'mailbox', 
            'from_htmladdr_search', 'identity', 'draft_id', 'delete_draft', 
            'mailprio', 'edit_as_new', 'attachments', 'composesession', 
            'request_mdn', 'request_dr', 'fwduid');

        foreach ($compo_var_list as $var) {
            if ( isset($session_expired_post[$var]) && !isset($$var) ) {
                $$var = $session_expired_post[$var];
            }
        }

        if (!empty($attachments))
            $attachments = unserialize(urldecode($attachments));

        sqsession_register($composesession,'composesession');

        if (isset($send)) {
            unset($send);
        }
        $session_expired = true;
    }
    unset($session_expired_post);
    sqsession_unregister('session_expired_post');
    session_write_close();
    if (!isset($mailbox)) {
        $mailbox = '';
    }
    if ($compose_new_win == '1') {
        compose_Header($color, $mailbox);
    } else {
        $sHeaderJs = (isset($sHeaderJs)) ? $sHeaderJs : '';
        if (strpos($action, 'reply') !== false && $reply_focus) {
            $sOnload = 'checkForm(\''.$replyfocus.'\');';
        } else {
            $sOnload = 'checkForm();';
        }
        displayPageHeader($color, $mailbox,$sHeaderJs,$sOnload);
    }
    showInputForm($session, false);
    exit();
}

if (!isset($composesession)) {
    $composesession = 0;
    sqsession_register(0,'composesession');
} else {
    $composesession = (int)$composesession;
}

if (!isset($session) || (isset($newmessage) && $newmessage)) {
    sqsession_unregister('composesession');
    $session = "$composesession" +1;
    $composesession = $session;
    sqsession_register($composesession,'composesession');
}
if (!empty($compose_messages[$session])) {
    $composeMessage = $compose_messages[$session];
} else {
    $composeMessage = new Message();
    $rfc822_header = new Rfc822Header();
    $composeMessage->rfc822_header = $rfc822_header;
    $composeMessage->reply_rfc822_header = '';
}

// re-add attachments that were already in this message
// FIXME: note that technically this is very bad form -
// should never directly manipulate an object like this
if (!empty($attachments)) {
    $attachments = unserialize(urldecode($attachments));
    if (!empty($attachments) && is_array($attachments))
        $composeMessage->entities = $attachments;
}

if (empty($mailbox)) {
    $mailbox = 'INBOX';
}

if ($draft) {

    // validate security token
    //
    sm_validate_security_token($submitted_token, 3600, TRUE);

    /*
     * Set $default_charset to correspond with the user's selection
     * of language interface.
     */
    set_my_charset();
    if (! deliverMessage($composeMessage, true)) {
        showInputForm($session);
        exit();
    } else {
        $draft_message = _("Draft Email Saved");
        /* If this is a resumed draft, then delete the original */
        if(isset($delete_draft)) {
            $imap_stream = sqimap_login($username, false, $imapServerAddress, $imapPort, false);
            sqimap_mailbox_select($imap_stream, $draft_folder);
            // force bypass_trash=true because message should be saved when deliverMessage() returns true.
            // in current implementation of sqimap_msgs_list_flag() single message id can
            // be submitted as string. docs state that it should be array.
            sqimap_msgs_list_delete($imap_stream, $draft_folder, $delete_draft, true);
            if ($auto_expunge) {
                sqimap_mailbox_expunge($imap_stream, $draft_folder, true);
            }
            sqimap_logout($imap_stream);
        }

        $oErrorHandler->saveDelayedErrors();
        session_write_close();

        if ($compose_new_win == '1') {
            if ( !isset($pageheader_sent) || !$pageheader_sent ) {
                header("Location: $location/compose.php?saved_draft=yes&session=$composesession");
            } else {
//FIXME: DON'T ECHO HTML FROM CORE!
                echo '   <br><br><div style="text-align: center;"><a href="' . $location
                    . '/compose.php?saved_sent=yes&amp;session=' . $composesession . '">'
                    . _("Return") . '</a></div>';
            }
            exit();
        } else {
            if ( !isset($pageheader_sent) || !$pageheader_sent ) {
                header("Location: $location/right_main.php?mailbox=" . urlencode($draft_folder) .
                   "&startMessage=1&note=".urlencode($draft_message));
            } else {
//FIXME: DON'T ECHO HTML FROM CORE!
                echo '   <br><br><div style="text-align: center;"><a href="' . $location
                    . '/right_main.php?mailbox=' . urlencode($draft_folder)
                    . '&amp;startMessage=1&amp;note=' . urlencode($draft_message) .'">'
                    . _("Return") . '</a></div>';
            }
            exit();
        }
    }
}

if ($send) {

    // validate security token
    //
    sm_validate_security_token($submitted_token, 3600, TRUE);

    if (isset($_FILES['attachfile']) &&
            $_FILES['attachfile']['tmp_name'] &&
            $_FILES['attachfile']['tmp_name'] != 'none') {
        $AttachFailure = saveAttachedFiles($session);
    }
    
    if (checkInput(false) && !isset($AttachFailure)) {
        if ($mailbox == "All Folders") {
            /* We entered compose via the search results page */
            $mailbox = 'INBOX'; /* Send 'em to INBOX, that's safe enough */
        }
        $urlMailbox = urlencode($mailbox);
        if (! isset($passed_id)) {
            $passed_id = 0;
        }
        /**
         * Set $default_charset to correspond with the user's selection
         * of language interface.
         */
        set_my_charset();
        /**
         * This is to change all newlines to \n
         * We'll change them to \r\n later (in the sendMessage function)
         */
        $body = str_replace("\r\n", "\n", $body);
        $body = str_replace("\r", "\n", $body);

        /**
         * Rewrap $body so that no line is bigger than $editor_size
         */
        $body = explode("\n", $body);
        $newBody = '';
        foreach ($body as $line) {
            if( $line <> '-- ' ) {
                $line = rtrim($line);
            }
            if (sq_strlen($line, $default_charset) <= $editor_size + 1) {
                $newBody .= $line . "\n";
            } else {
                sqWordWrap($line, $editor_size, $default_charset);
                $newBody .= $line . "\n";

            }

        }
        $body = $newBody;

        $Result = deliverMessage($composeMessage);

        if ($Result)
            $mail_sent = 'yes';
        else
            $mail_sent = 'no';

        // NOTE: this hook changed in 1.5.2 from sending $Result and
        //       $composeMessage as args #2 and #3 to being in an array
        //       under arg #2
        $temp = array(&$Result, &$composeMessage, &$mail_sent);
        do_hook('compose_send_after', $temp);
        if (! $Result) {
            showInputForm($session);
            exit();
        }

        /* if it is resumed draft, delete draft message */
        if ( isset($delete_draft)) {
            $imap_stream = sqimap_login($username, false, $imapServerAddress, $imapPort, false);
            sqimap_mailbox_select($imap_stream, $draft_folder);
            // bypass_trash=true because message should be saved when deliverMessage() returns true.
            // in current implementation of sqimap_msgs_list_flag() single message id can
            // be submitted as string. docs state that it should be array.
            sqimap_msgs_list_delete($imap_stream, $draft_folder, $delete_draft, true);
            if ($auto_expunge) {
                sqimap_mailbox_expunge($imap_stream, $draft_folder, true);
            }
            sqimap_logout($imap_stream);
        }
        /*
         * Store the error array in the session because they will be lost on a redirect
         */
        $oErrorHandler->saveDelayedErrors();
        session_write_close();

        if ($compose_new_win == '1') {
            if ( !isset($pageheader_sent) || !$pageheader_sent ) {
                header("Location: $location/compose.php?mail_sent=$mail_sent");
            } else {
//FIXME: DON'T ECHO HTML FROM CORE!
                echo '   <br><br><div style="text-align: center;"><a href="' . $location
                    . '/compose.php?mail_sent=$mail_sent">'
                    . _("Return") . '</a></div>';
            }
            exit();
        } else {
            if ( !isset($pageheader_sent) || !$pageheader_sent ) {
                header("Location: $location/right_main.php?mailbox=$urlMailbox".
                    "&startMessage=$startMessage&mail_sent=$mail_sent");
            } else {
//FIXME: DON'T ECHO HTML FROM CORE!
                echo '   <br><br><div style="text-align: center;"><a href="' . $location
                    . "/right_main.php?mailbox=$urlMailbox"
                    . "&amp;startMessage=$startMessage&amp;mail_sent=$mail_sent\">"
                    . _("Return") . '</a></div>';
            }
            exit();
        }
    } else {
        if ($compose_new_win == '1') {
            compose_Header($color, $mailbox);
        }
        else {
            displayPageHeader($color, $mailbox);
        }
        if (isset($AttachFailure)) {
            plain_error_message(_("Could not move/copy file. File not attached"),
                    $color);
        }
        checkInput(true);
        showInputForm($session);
        /* sqimap_logout($imapConnection); */
    }
} elseif (isset($html_addr_search_done)) {

    // validate security token
    //
    sm_validate_security_token($submitted_token, 3600, TRUE);

    if ($compose_new_win == '1') {
        compose_Header($color, $mailbox);
    }
    else {
        displayPageHeader($color, $mailbox);
    }

    if (isset($send_to_search) && is_array($send_to_search)) {
        foreach ($send_to_search as $k => $v) {
            if (substr($k, 0, 1) == 'T') {
                if ($send_to) {
                    $send_to .= ', ';
                }
                $send_to .= $v;
            }
            elseif (substr($k, 0, 1) == 'C') {
                if ($send_to_cc) {
                    $send_to_cc .= ', ';
                }
                $send_to_cc .= $v;
            }
            elseif (substr($k, 0, 1) == 'B') {
                if ($send_to_bcc) {
                    $send_to_bcc .= ', ';
                }
                $send_to_bcc .= $v;
            }
        }
    }
    showInputForm($session);
} elseif (isset($html_addr_search) && !isset($html_addr_search_cancel)) {
    if (isset($_FILES['attachfile']) &&
            $_FILES['attachfile']['tmp_name'] &&
            $_FILES['attachfile']['tmp_name'] != 'none') {
        if(saveAttachedFiles($session)) {
            plain_error_message(_("Could not move/copy file. File not attached"));
        }
    }
    /*
     * I am using an include so as to elminiate an extra unnecessary
     * click.  If you can think of a better way, please implement it.
     */
    include_once('./addrbook_search_html.php');
} elseif (isset($attach)) {

    // validate security token
    //
    sm_validate_security_token($submitted_token, 3600, TRUE);

    if ($compose_new_win == '1') {
        compose_Header($color, $mailbox);
    } else {
        displayPageHeader($color, $mailbox);
    }
    if (saveAttachedFiles($session)) {
        plain_error_message(_("Could not move/copy file. File not attached"));
    }
    showInputForm($session);
}
elseif (isset($sigappend)) {

    // validate security token
    //
    sm_validate_security_token($submitted_token, 3600, TRUE);

    $signature = $idents[$identity]['signature'];

    $body .= "\n\n".($prefix_sig==true? "-- \n":'').$signature;
    if ($compose_new_win == '1') {
        compose_Header($color, $mailbox);
    } else {
        displayPageHeader($color, $mailbox);
    }
    showInputForm($session);
} elseif (isset($do_delete)) {

    // validate security token
    //
    sm_validate_security_token($submitted_token, 3600, TRUE);

    if ($compose_new_win == '1') {
        compose_Header($color, $mailbox);
    } else {
        displayPageHeader($color, $mailbox);
    }

    if (isset($delete) && is_array($delete)) {
        foreach($delete as $index) {
            if (!empty($composeMessage->entities) && isset($composeMessage->entities[$index])) {
                $composeMessage->entities[$index]->purgeAttachments();
                // FIXME: one person reported that unset() didn't do anything at all here, so this is a work-around... but it triggers PHP notices if the unset() doesn't work, which should be fixed... but bigger question is if unset() doesn't work here, what about everywhere else? Anyway, uncomment this if you think you need it
                //$composeMessage->entities[$index] = NULL;
                unset ($composeMessage->entities[$index]);
            }
        }
        $new_entities = array();
        foreach ($composeMessage->entities as $entity) {
            $new_entities[] = $entity;
        }
        $composeMessage->entities = $new_entities;
    }
    showInputForm($session);
} else {
    /*
     * This handles the default case as well as the error case
     * (they had the same code) --> if (isset($smtpErrors))
     */

    if ($compose_new_win == '1') {
        compose_Header($color, $mailbox);
    } else {
        displayPageHeader($color, $mailbox);
    }

    $newmail = true;

    if (!isset($passed_ent_id)) {
        $passed_ent_id = '';
    }
    if (!isset($passed_id)) {
        $passed_id = '';
    }
    if (!isset($mailbox)) {
        $mailbox = '';
    }
    if (!isset($action)) {
        $action = '';
    }

    $values = newMail($mailbox,$passed_id,$passed_ent_id, $action, $session);

    // forward as attachment - subject is in the message in session
    //
    if ($action == 'forward_as_attachment' && empty($values['subject']))
        $subject = $composeMessage->rfc822_header->subject;

    /* in case the origin is not read_body.php */
    if (isset($send_to)) {
        $values['send_to'] = $send_to;
    }
    if (isset($send_to_cc)) {
        $values['send_to_cc'] = $send_to_cc;
    }
    if (isset($send_to_bcc)) {
        $values['send_to_bcc'] = $send_to_bcc;
    }
    if (isset($subject)) {
        $values['subject'] = $subject;
    }
    showInputForm($session, $values);
}

exit();

/**************** Only function definitions go below *************/

function getforwardSubject($subject)
{
    if ((substr(strtolower($subject), 0, 4) != 'fwd:') &&
            (substr(strtolower($subject), 0, 5) != '[fwd:') &&
            (substr(strtolower($subject), 0, 6) != '[ fwd:')) {
        $subject = '[Fwd: ' . $subject . ']';
    }
    return $subject;
}

/* This function is used when not sending or adding attachments */
function newMail ($mailbox='', $passed_id='', $passed_ent_id='', $action='', $session='') {
    global $editor_size, $default_use_priority, $body, $idents,
        $use_signature, $data_dir, $username,
        $key, $imapServerAddress, $imapPort, 
        $composeMessage, $body_quote, $request_mdn, $request_dr,
        $mdn_user_support, $languages, $squirrelmail_language,
        $default_charset, $do_not_reply_to_self;

    /*
     * Set $default_charset to correspond with the user's selection
     * of language interface. $default_charset global is not correct,
     * if message is composed in new window.
     */
    set_my_charset();

    $send_to = $send_to_cc = $send_to_bcc = $subject = $identity = '';
    $mailprio = 3;

    if ($passed_id) {
        $imapConnection = sqimap_login($username, false, $imapServerAddress,
                $imapPort, 0);

        sqimap_mailbox_select($imapConnection, $mailbox);
        $message = sqimap_get_message($imapConnection, $passed_id, $mailbox);

        $body = '';
        if ($passed_ent_id) {
            /* redefine the messsage in case of message/rfc822 */
            $message = $message->getEntity($passed_ent_id);
            /* message is an entity which contains the envelope and type0=message
             * and type1=rfc822. The actual entities are childs from
             * $message->entities[0]. That's where the encoding and is located
             */

            $entities = $message->entities[0]->findDisplayEntity
                (array(), $alt_order = array('text/plain'));
            if (!count($entities)) {
                $entities = $message->entities[0]->findDisplayEntity
                    (array(), $alt_order = array('text/plain','text/html'));
            }
            $orig_header = $message->rfc822_header; /* here is the envelope located */
            /* redefine the message for picking up the attachments */
            $message = $message->entities[0];

        } else {
            $entities = $message->findDisplayEntity (array(), $alt_order = array('text/plain'));
            if (!count($entities)) {
                $entities = $message->findDisplayEntity (array(), $alt_order = array('text/plain','text/html'));
            }
            $orig_header = $message->rfc822_header;
        }

        $type0 = $message->type0;
        $type1 = $message->type1;
        foreach ($entities as $ent) {
            $msg = $message->getEntity($ent);
            $type0 = $msg->type0;
            $type1 = $msg->type1;
            $unencoded_bodypart = mime_fetch_body($imapConnection, $passed_id, $ent);
            $body_part_entity = $message->getEntity($ent);
            $bodypart = decodeBody($unencoded_bodypart,
                    $body_part_entity->header->encoding);
            if ($type1 == 'html') {
                $bodypart = str_replace("\n", ' ', $bodypart);
                $bodypart = preg_replace(array('/<\/?p>/i','/<div><\/div>/i','/<br\s*(\/)*>/i','/<\/?div>/i'), "\n", $bodypart);
                $bodypart = str_replace(array('&nbsp;','&gt;','&lt;'),array(' ','>','<'),$bodypart);
                $bodypart = strip_tags($bodypart);
            }
            if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
                    function_exists($languages[$squirrelmail_language]['XTRA_CODE'] . '_decode')) {
                if (mb_detect_encoding($bodypart) != 'ASCII') {
                    $bodypart = call_user_func($languages[$squirrelmail_language]['XTRA_CODE'] . '_decode', $bodypart);
                }
            }

            // charset encoding in compose form stuff
            if (isset($body_part_entity->header->parameters['charset'])) {
                $actual = $body_part_entity->header->parameters['charset'];
            } else {
                $actual = 'us-ascii';
            }

            if ( $actual && is_conversion_safe($actual) && $actual != $default_charset){
                $bodypart = charset_convert($actual,$bodypart,$default_charset,false);
            }
            // end of charset encoding in compose

            $body .= $bodypart;
        }
        if ($default_use_priority) {
            $mailprio = substr($orig_header->priority,0,1);
            if (!$mailprio) {
                $mailprio = 3;
            }
        } else {
            $mailprio = '';
        }

        $from_o = $orig_header->from;
        if (is_array($from_o)) {
            if (isset($from_o[0])) {
                $from_o = $from_o[0];
            }
        }
        if (is_object($from_o)) {
            $orig_from = $from_o->getAddress();
        } else {
            $orig_from = '';
        }

        $identities = array();
        if (count($idents) > 1) {
            foreach($idents as $nr=>$data) {
                $enc_from_name = '"'.$data['full_name'].'" <'. $data['email_address'].'>';
                $identities[] = $enc_from_name;
            }

            $identity_match = $orig_header->findAddress($identities);
            if ($identity_match !== FALSE) {
                $identity = $identity_match;
            }
        }

        switch ($action) {
            case ('draft'):
                $use_signature = FALSE;
                $composeMessage->rfc822_header = $orig_header;
                $send_to = decodeHeader($orig_header->getAddr_s('to'),false,false,true);
                $send_to_cc = decodeHeader($orig_header->getAddr_s('cc'),false,false,true);
                $send_to_bcc = decodeHeader($orig_header->getAddr_s('bcc'),false,false,true);
                $send_from = $orig_header->getAddr_s('from');
                $send_from_parts = new AddressStructure();
                $send_from_parts = $orig_header->parseAddress($send_from);
                $send_from_add = $send_from_parts->mailbox . '@' . $send_from_parts->host;
                $identity = find_identity(array($send_from_add));
                $subject = decodeHeader($orig_header->subject,false,false,true);

                // Remember the receipt settings
                $request_mdn = $mdn_user_support && !empty($orig_header->dnt) ? '1' : '0';
                $request_dr = $mdn_user_support && !empty($orig_header->drnt) ? '1' : '0';

                /* remember the references and in-reply-to headers in case of an reply */
//FIXME: it would be better to fiddle with headers inside of the message object or possibly when delivering the message to its destination (drafts folder?); is this possible?
                $composeMessage->rfc822_header->more_headers['References'] = $orig_header->references;
                $composeMessage->rfc822_header->more_headers['In-Reply-To'] = $orig_header->in_reply_to;
                // rewrap the body to clean up quotations and line lengths
                sqBodyWrap($body, $editor_size);
                $composeMessage = getAttachments($message, $composeMessage, $passed_id, $entities, $imapConnection);
                break;
            case ('edit_as_new'):
                $send_to = decodeHeader($orig_header->getAddr_s('to'),false,false,true);
                $send_to_cc = decodeHeader($orig_header->getAddr_s('cc'),false,false,true);
                $send_to_bcc = decodeHeader($orig_header->getAddr_s('bcc'),false,false,true);
                $subject = decodeHeader($orig_header->subject,false,false,true);
                $mailprio = $orig_header->priority;
                $orig_from = '';
                $composeMessage = getAttachments($message, $composeMessage, $passed_id, $entities, $imapConnection);
                // rewrap the body to clean up quotations and line lengths
                sqBodyWrap($body, $editor_size);
                break;
            case ('forward'):
                $send_to = '';
                $subject = getforwardSubject(decodeHeader($orig_header->subject,false,false,true));
                $body = getforwardHeader($orig_header) . $body;
                // the logic for calling sqUnWordWrap here would be to allow the browser to wrap the lines
                // forwarded message text should be as undisturbed as possible, so commenting out this call
                // sqUnWordWrap($body);
                $composeMessage = getAttachments($message, $composeMessage, $passed_id, $entities, $imapConnection);

                //add a blank line after the forward headers
                $body = "\n" . $body;
                break;
            case ('forward_as_attachment'):
                $subject = getforwardSubject(decodeHeader($orig_header->subject,false,false,true));
                $composeMessage = getMessage_RFC822_Attachment($message, $composeMessage, $passed_id, $passed_ent_id, $imapConnection);
                $subject = decodeHeader($orig_header->subject,false,false,true);
                $subject = str_replace('"', "'", $subject);
                $subject = trim($subject);
                if (substr(strtolower($subject), 0, 4) != 'fwd:') {
                    $subject = 'Fwd: ' . $subject;
                }
                $body = '';
                break;
            case ('reply_all'):
                if(isset($orig_header->mail_followup_to) && $orig_header->mail_followup_to) {
                    $send_to = $orig_header->getAddr_s('mail_followup_to');
                } else {
                    $send_to_cc = replyAllString($orig_header);
                    $send_to_cc = decodeHeader($send_to_cc,false,false,true);
                    $send_to_cc = str_replace('""', '"', $send_to_cc);
                }
            case ('reply'):
                // skip this if send_to was already set right above here
                if(!$send_to) {
                    $send_to = $orig_header->reply_to;
                    if (is_array($send_to) && count($send_to)) {
                        $send_to = $orig_header->getAddr_s('reply_to', ',', FALSE, TRUE);
                    } else if (is_object($send_to)) { /* unneccesarry, just for failsafe purpose */
                        $send_to = $orig_header->getAddr_s('reply_to', ',', FALSE, TRUE);
                    } else {
                        $send_to = $orig_header->getAddr_s('from', ',', FALSE, TRUE);
                    }
                }
                $send_to = decodeHeader($send_to,false,false,true);
                $send_to = str_replace('""', '"', $send_to);


                // If user doesn't want replies to her own messages
                // going back to herself (instead send again to the
                // original recipient of the message being replied to),
                // then iterate through identities, checking if the TO
                // field is one of them (if the reply is to ourselves)
                //
                // Note we don't bother if the original message doesn't
                // have anything in the TO field itself (because that's
                // what we use if we change the recipient to be that of
                // the previous message)
                //
                if ($do_not_reply_to_self && !empty($orig_header->to)) {

                    $orig_to = '';

                    foreach($idents as $id) {

                        if (!empty($id['email_address'])
                         && strpos($send_to, $id['email_address']) !== FALSE) {

                            // if this is a reply-all, the original recipient
                            // is already in the CC field, so we can just blank
                            // the recipient (TO field) (as long as the CC field
                            // isn't empty that is) and we're done
                            //
                            if ($action == 'reply_all' && !empty($send_to_cc)) {
                                $send_to = '';
                                break;
                            }

                            $orig_to = $orig_header->to;
                            if (is_array($orig_to) && count($orig_to)) {
                                $orig_to = $orig_header->getAddr_s('to', ',', FALSE, TRUE);
                            } else if (is_object($orig_to)) { /* unneccesarry, just for failsafe purpose */
                                $orig_to = $orig_header->getAddr_s('to', ',', FALSE, TRUE);
                            } else {
                                $orig_to = '';
                            }
                            $orig_to = decodeHeader($orig_to,false,false,true);
                            $orig_to = str_replace('""', '"', $orig_to);

                            break;
                        }
                    }

                    // if the reply was addressed back to ourselves,
                    // we will send it to the TO of the previous message
                    //
                    if (!empty($orig_to)) {

                        $send_to = $orig_to;
                    }

                }


                $subject = decodeHeader($orig_header->subject,false,false,true);
                $subject = str_replace('"', "'", $subject);
                $subject = trim($subject);
                if (substr(strtolower($subject), 0, 3) != 're:') {
                    $subject = 'Re: ' . $subject;
                }
                /* this corrects some wrapping/quoting problems on replies */
                $rewrap_body = explode("\n", $body);
                $from = (is_array($orig_header->from) && !empty($orig_header->from)) ? $orig_header->from[0] : $orig_header->from;
                $body = '';
                $strip_sigs = getPref($data_dir, $username, 'strip_sigs');
                foreach ($rewrap_body as $line) {
                    if ($strip_sigs && rtrim($line, "\r\n") == '-- ') {
                        break;
                    }
                    if (preg_match("/^(>+)/", $line, $matches)) {
                        $gt = $matches[1];
                        $body .= $body_quote . str_replace("\n", "\n$body_quote$gt ", rtrim($line)) ."\n";
                    } else {
                        $body .= $body_quote . (!empty($body_quote) ? ' ' : '') . str_replace("\n", "\n$body_quote" . (!empty($body_quote) ? ' ' : ''), rtrim($line)) . "\n";
                    }
                }

                //rewrap the body to clean up quotations and line lengths
                $body = sqBodyWrap ($body, $editor_size);

                $body = getReplyCitation($from , $orig_header->date) . $body;
                $composeMessage->reply_rfc822_header = $orig_header;

                break;
            default:
                break;
        }
//FIXME: we used to register $compose_messages in the session here, but not any more - so do we still need the session_write_close() and sqimap_logout() here?  We probably need the IMAP logout, but what about the session closure?
        session_write_close();
        sqimap_logout($imapConnection);
    }
    $ret = array( 'send_to' => $send_to,
            'send_to_cc' => $send_to_cc,
            'send_to_bcc' => $send_to_bcc,
            'subject' => $subject,
            'mailprio' => $mailprio,
            'body' => $body,
            'identity' => $identity );

    return ($ret);
} /* function newMail() */

/**
 * downloads attachments from original message, stores them in attachment directory and adds
 * them to composed message.
 * @param object $message
 * @param object $composeMessage
 * @param integer $passed_id
 * @param mixed $entities
 * @param mixed $imapConnection
 * @return object
 */
function getAttachments($message, &$composeMessage, $passed_id, $entities, $imapConnection) {
    global $squirrelmail_language, $languages, $username, $attachment_dir;

    if (!count($message->entities) ||
            ($message->type0 == 'message' && $message->type1 == 'rfc822')) {
        if ( !in_array($message->entity_id, $entities) && $message->entity_id) {
            switch ($message->type0) {
                case 'message':
                    if ($message->type1 == 'rfc822') {
                        $filename = $message->rfc822_header->subject;
                        if ($filename == "") {
                            $filename = "untitled-".$message->entity_id;
                        }
                        $filename .= '.eml';
                    } else {
                        $filename = $message->getFilename();
                    }
                    break;
                default:
                    if (!$message->mime_header) { /* temporary hack */
                        $message->mime_header = $message->header;
                    }
                    $filename = $message->getFilename();
                    break;
            }
//FIXME: added three args to the following, so as to set the last one to TRUE, to mimick a fix in 1.4.21 (#2994865), but didn't test this (note that in 1.4.21, the 2nd and 3rd args are FALSE, but here in this code, they weren't being specified (thus defaulting to TRUE), so I don't know if that means this code is outdated and should have been changed to FALSE, FALSE or if this code is completely different and the addition of the TRUE for arg #4 is wrong
            $filename = str_replace('&#32;', ' ', decodeHeader($filename, true, true, true));
            if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
                    function_exists($languages[$squirrelmail_language]['XTRA_CODE'] . '_encode')) {
                $filename =  call_user_func($languages[$squirrelmail_language]['XTRA_CODE'] . '_encode', $filename);
            }

            $hashed_attachment_dir = getHashedDir($username, $attachment_dir);
            $localfilename = sq_get_attach_tempfile();
            $message->att_local_name = $localfilename;

            $composeMessage->initAttachment($message->type0.'/'.$message->type1,$filename,
                    $localfilename);

            /* Write Attachment to file */
            $fp = fopen ($hashed_attachment_dir . '/' . $localfilename, 'wb');
            mime_print_body_lines ($imapConnection, $passed_id, $message->entity_id, $message->header->encoding, $fp);
            fclose ($fp);
        }
    } else {
        for ($i=0, $entCount=count($message->entities); $i<$entCount;$i++) {
            $composeMessage=getAttachments($message->entities[$i], $composeMessage, $passed_id, $entities, $imapConnection);
        }
    }
    return $composeMessage;
}

function getMessage_RFC822_Attachment($message, $composeMessage, $passed_id,
        $passed_ent_id='', $imapConnection) {
    if (!$passed_ent_id) {
        $body_a = sqimap_run_command($imapConnection,
                'FETCH '.$passed_id.' RFC822',
                TRUE, $response, $readmessage,
                TRUE);
    } else {
        $body_a = sqimap_run_command($imapConnection,
                'FETCH '.$passed_id.' BODY['.$passed_ent_id.']',
                TRUE, $response, $readmessage, TRUE);
        $message = $message->parent;
    }
    if ($response == 'OK') {
        $subject = encodeHeader($message->rfc822_header->subject);
        array_shift($body_a);
        array_pop($body_a);
        $body = implode('', $body_a) . "\r\n";

        global $username, $attachment_dir;
        $hashed_attachment_dir = getHashedDir($username, $attachment_dir);
        $localfilename = sq_get_attach_tempfile();
        $fp = fopen($hashed_attachment_dir . '/' . $localfilename, 'wb');
        fwrite ($fp, $body);
        fclose($fp);
        $composeMessage->initAttachment('message/rfc822',$subject.'.eml',
                $localfilename);
    }
    return $composeMessage;
}

function showInputForm ($session, $values=false) {
    global $send_to, $send_to_cc, $send_to_bcc,
        $body, $startMessage, $action, $attachments,
        $use_signature, $signature, $prefix_sig, $session_expired,
        $editor_size, $editor_height, $subject, $newmail,
        $use_javascript_addr_book, $passed_id, $mailbox, $fwduid,
        $from_htmladdr_search, $location_of_buttons, $attachment_dir,
        $username, $data_dir, $identity, $idents, $delete_draft,
        $mailprio, $compose_new_win, $saved_draft, $mail_sent, $sig_first,
        $composeMessage, $composesession, $default_charset,
        $compose_onsubmit, $oTemplate, $oErrorHandler;

    if (checkForJavascript()) {
        $onfocus = ' onfocus="alreadyFocused=true;"';
        $onfocus_array = array('onfocus' => 'alreadyFocused=true;');
    }
    else {
        $onfocus = '';
        $onfocus_array = array();
    }

    if ($values) {
        $send_to = $values['send_to'];
        $send_to_cc = $values['send_to_cc'];
        $send_to_bcc = $values['send_to_bcc'];
        $subject = $values['subject'];
        $mailprio = $values['mailprio'];
        $body = $values['body'];
        $identity = (int) $values['identity'];
    } else {
        $send_to = decodeHeader($send_to, true, false);
        $send_to_cc = decodeHeader($send_to_cc, true, false);
        $send_to_bcc = decodeHeader($send_to_bcc, true, false);
    }

    if ($use_javascript_addr_book) {
//FIXME: NO HTML IN CORE!
        echo "\n". '<script type="text/javascript">'."\n<!--\n" .
            'function open_abook() { ' . "\n" .
            '  var nwin = window.open("addrbook_popup.php","abookpopup",' .
            '"width=670,height=300,resizable=yes,scrollbars=yes");' . "\n" .
            '  if((!nwin.opener) && (document.windows != null))' . "\n" .
            '    nwin.opener = document.windows;' . "\n" .
            "}\n" .
            "// -->\n</script>\n\n";
    }

//FIXME: NO HTML IN CORE!
    echo "\n" . '<form name="compose" action="compose.php" method="post" ' .
        'enctype="multipart/form-data"';

    $compose_onsubmit = array();
    global $null;
    do_hook('compose_form', $null);

    // Plugins that use compose_form hook can add an array entry
    // to the globally scoped $compose_onsubmit; we add them up
    // here and format the form tag's full onsubmit handler.
    // Each plugin should use "return false" if they need to
    // stop form submission but otherwise should NOT use "return
    // true" to give other plugins the chance to do what they need
    // to do; SquirrelMail itself will add the final "return true".
    // Onsubmit text is enclosed inside of double quotes, so plugins
    // need to quote accordingly.
    //
    // Also, plugin authors should try to retain compatibility with
    // the Compose Extras plugin by resetting its compose submit
    // counter when preventing form submit.  Use this code: 
    // if (your-code-here) { submit_count = 0; return false; }
    //
    if (checkForJavascript()) {
        if (empty($compose_onsubmit))
            $compose_onsubmit = array();
        else if (!is_array($compose_onsubmit))
            $compose_onsubmit = array($compose_onsubmit);

        $onsubmit_text = '';
        foreach ($compose_onsubmit as $text) {
            $text = trim($text);
            if (!empty($text)) {
                if (substr($text, -1) != ';' && substr($text, -1) != '}')
                    $text .= '; ';
                $onsubmit_text .= $text;
            }
        }

        if (!empty($onsubmit_text))
//FIXME: DON'T ECHO HTML FROM CORE!
            echo ' onsubmit="' . $onsubmit_text . ' return true;"';
    }


//FIXME: NO HTML IN CORE!
    echo ">\n";

//FIXME: DON'T ECHO HTML FROM CORE!
    echo addHidden('smtoken', sm_generate_security_token());

//FIXME: DON'T ECHO HTML FROM CORE!
    echo addHidden('startMessage', $startMessage);

    if ($action == 'draft') {
//FIXME: DON'T ECHO HTML FROM CORE!
        echo addHidden('delete_draft', $passed_id);
    }
    if (isset($delete_draft)) {
//FIXME: DON'T ECHO HTML FROM CORE!
        echo addHidden('delete_draft', $delete_draft);
    }
    if (isset($session)) {
//FIXME: DON'T ECHO HTML FROM CORE!
        echo addHidden('session', $session);
    }

    if (isset($passed_id)) {
//FIXME: DON'T ECHO HTML FROM CORE!
        echo addHidden('passed_id', $passed_id);
    }

    if (isset($fwduid)) {
//FIXME: DON'T ECHO HTML FROM CORE!
        echo addHidden('fwduid', $fwduid);
    }

    if ($saved_draft == 'yes') {
        $oTemplate->assign('note', _("Your draft has been saved."));
        $oTemplate->display('note.tpl');
    }
    if ($mail_sent == 'yes') {
        $oTemplate->assign('note', _("Your mail has been sent."));
        $oTemplate->display('note.tpl');
    }
    if ($compose_new_win == '1') {
        $oTemplate->display('compose_newwin_close.tpl');
    }

    if ($location_of_buttons == 'top') {
//FIXME: DON'T ECHO HTML FROM CORE!
        showComposeButtonRow();
    }

    $identities = array();
    if (count($idents) > 1) {
        reset($idents);
        foreach($idents as $id => $data) {
            $identities[$id] = $data['full_name'].' &lt;'.$data['email_address'].'&gt;';
        }
    }

    $oTemplate->assign('identities', $identities);
    $oTemplate->assign('identity_def', $identity);
    $oTemplate->assign('input_onfocus', 'onfocus="'.join(' ', $onfocus_array).'"');

    $oTemplate->assign('to', sm_encode_html_special_chars($send_to));
    $oTemplate->assign('cc', sm_encode_html_special_chars($send_to_cc));
    $oTemplate->assign('bcc', sm_encode_html_special_chars($send_to_bcc));
    $oTemplate->assign('subject', sm_encode_html_special_chars($subject));

    // access keys...
    //
    global $accesskey_compose_to, $accesskey_compose_cc,
           $accesskey_compose_identity, $accesskey_compose_bcc,
           $accesskey_compose_subject;
    $oTemplate->assign('accesskey_compose_identity', $accesskey_compose_identity);
    $oTemplate->assign('accesskey_compose_to', $accesskey_compose_to);
    $oTemplate->assign('accesskey_compose_cc', $accesskey_compose_cc);
    $oTemplate->assign('accesskey_compose_bcc', $accesskey_compose_bcc);
    $oTemplate->assign('accesskey_compose_subject', $accesskey_compose_subject);

    $oTemplate->display('compose_header.tpl');

    if ($location_of_buttons == 'between') {
//FIXME: DON'T ECHO HTML FROM CORE!
        showComposeButtonRow();
    }

    $body_str = '';
    if ($use_signature == true && $newmail == true && !isset($from_htmladdr_search)) {
        $signature = $idents[$identity]['signature'];

        if ($sig_first == '1') {
            /*
             * FIXME: test is specific to ja_JP translation implementation.
             * This test might apply incorrect conversion to other translations, but
             * use of 7bit iso-2022-jp charset in other translations might have other
             * issues too.
             */
            if ($default_charset == 'iso-2022-jp') {
                $body_str = "\n\n".($prefix_sig==true? "-- \n":'').mb_convert_encoding($signature, 'EUC-JP');
            } else {
                $body_str = "\n\n".($prefix_sig==true? "-- \n":'').decodeHeader($signature,false,false);
            }
            $body_str .= "\n\n".sm_encode_html_special_chars(decodeHeader($body,false,false));
        } else {
            $body_str = "\n\n".sm_encode_html_special_chars(decodeHeader($body,false,false));
            // FIXME: test is specific to ja_JP translation implementation. See above comments.
            if ($default_charset == 'iso-2022-jp') {
                $body_str .= "\n\n".($prefix_sig==true? "-- \n":'').mb_convert_encoding($signature, 'EUC-JP');
            } else {
                $body_str .= "\n\n".($prefix_sig==true? "-- \n":'').decodeHeader($signature,false,false);
            }
        }
    } else {
        $body_str = sm_encode_html_special_chars(decodeHeader($body,false,false));
    }

    $oTemplate->assign('editor_width', (int)$editor_size);
    $oTemplate->assign('editor_height', (int)$editor_height);
    $oTemplate->assign('input_onfocus', 'onfocus="'.join(' ', $onfocus_array).'"');
    $oTemplate->assign('body', $body_str);
    $oTemplate->assign('show_bottom_send', $location_of_buttons!='bottom');

    // access keys...
    //
    global $accesskey_compose_body, $accesskey_compose_send;
    $oTemplate->assign('accesskey_compose_body', $accesskey_compose_body);
    $oTemplate->assign('accesskey_compose_send', $accesskey_compose_send);

    $oTemplate->display ('compose_body.tpl');

    if ($location_of_buttons == 'bottom') {
//FIXME: DON'T ECHO HTML FROM CORE!
        showComposeButtonRow();
    }

    // composeMessage can be empty when coming from a restored session
    if (is_object($composeMessage) && $composeMessage->entities)
        $attach_array = $composeMessage->entities;
    if ($session_expired && !empty($attachments) && is_array($attachments))
        $attach_array = $attachments;

    /* This code is for attachments */
    if ((bool) ini_get('file_uploads')) {

        /* Calculate the max size for an uploaded file.
         * This is advisory for the user because we can't actually prevent
         * people to upload too large files. */
        $sizes = array();
        /* php.ini vars which influence the max for uploads */
        $configvars = array('post_max_size', 'memory_limit', 'upload_max_filesize');
        foreach($configvars as $var) {
            /* skip 0 or empty values, and -1 which means 'unlimited' */
            if( $size = getByteSize(ini_get($var)) ) {
                if ( $size != '-1' ) {
                    $sizes[] = $size;
                }
            }
        }

        $attach = array();
        global $username, $attachment_dir;
        $hashed_attachment_dir = getHashedDir($username, $attachment_dir);
        if (!empty($attach_array)) {
            foreach ($attach_array as $key => $attachment) {
                $attached_file = $attachment->att_local_name;
                if ($attachment->att_local_name || $attachment->body_part) {
                    $attached_filename = decodeHeader($attachment->mime_header->getParameter('name'));
                    $type = $attachment->mime_header->type0.'/'.
                        $attachment->mime_header->type1;

                    $a = array();
                    $a['Key'] = $key;
                    $a['FileName'] = $attached_filename;
                    $a['ContentType'] = $type;
                    $a['Size'] = filesize($hashed_attachment_dir . '/' . $attached_file);
                    $attach[$key] = $a;
                }
            }
        }

        $max = min($sizes);
        $oTemplate->assign('max_file_size', empty($max) ? -1 : $max);
        $oTemplate->assign('attachments', $attach);

        // access keys...
        //
        global $accesskey_compose_attach_browse, $accesskey_compose_attach,
               $accesskey_compose_delete_attach;
        $oTemplate->assign('accesskey_compose_attach_browse', $accesskey_compose_attach_browse);
        $oTemplate->assign('accesskey_compose_attach', $accesskey_compose_attach);
        $oTemplate->assign('accesskey_compose_delete_attach', $accesskey_compose_delete_attach);

        $oTemplate->display('compose_attachments.tpl');
    } // End of file_uploads if-block
    /* End of attachment code */

    $oTemplate->assign('username', $username);
    $oTemplate->assign('smaction', $action);
    $oTemplate->assign('mailbox', $mailbox);
    sqgetGlobalVar('QUERY_STRING', $queryString, SQ_SERVER);
    $oTemplate->assign('querystring', $queryString);
    $oTemplate->assign('composesession', $composesession);
    $oTemplate->assign('send_button_count', unique_widget_name('send', TRUE));
    if (!empty($attach_array))
        $oTemplate->assign('attachments', urlencode(serialize($attach_array)));

    $aUserNotices = array();

    // File uploads are off, so we didn't show that part of the form.
    // To avoid bogus bug reports, tell the user why. 
    if (!(bool) ini_get('file_uploads')) {
        $aUserNotices[] = _("Because PHP file uploads are turned off, you can not attach files to this message. Please see your system administrator for details.");
    }

    $oTemplate->assign('user_notices', $aUserNotices);

    $oTemplate->display('compose_form_close.tpl');

    if ($compose_new_win=='1') {
        $oTemplate->display('compose_newwin_close.tpl');
    }

    $oErrorHandler->setDelayedErrors(false);
    $oTemplate->display('footer.tpl');
}


function showComposeButtonRow() {
    global $use_javascript_addr_book, $save_as_draft,
        $default_use_priority, $mailprio, $default_use_mdn,
        $request_mdn, $request_dr,
        $data_dir, $username;

    global $oTemplate, $buffer_hook;

    if ($default_use_priority) {
        $priorities = array('1'=>_("High"), '3'=>_("Normal"), '5'=>_("Low"));
        $priority = isset($mailprio) ? $mailprio : 3;
    } else {
        $priorities = array();
        $priority = NULL;
    }

    $mdn_user_support=getPref($data_dir, $username, 'mdn_user_support',$default_use_mdn);

    $address_book_button_attribs = array();
    global $accesskey_compose_addresses;
    if ($accesskey_compose_addresses != 'NONE')
        $address_book_button_attribs['accesskey'] = $accesskey_compose_addresses;
    if ($use_javascript_addr_book && checkForJavascript()) {
        $addr_book = addButton(_("Addresses"),
                               null,
                               array_merge($address_book_button_attribs, array('onclick' => 'javascript:open_abook();')));
    } else {
        $addr_book = addSubmit(_("Addresses"), 'html_addr_search', $address_book_button_attribs);
    }

    $oTemplate->assign('allow_priority', $default_use_priority==1);
    $oTemplate->assign('priority_list', $priorities);
    $oTemplate->assign('current_priority', $priority);

    $oTemplate->assign('notifications_enabled', $mdn_user_support==1);
    $oTemplate->assign('read_receipt', $request_mdn=='1');
    $oTemplate->assign('delivery_receipt', $request_dr=='1');

    $oTemplate->assign('drafts_enabled', $save_as_draft);
    $oTemplate->assign('address_book_button', $addr_book);

    // access keys...
    //
    global $accesskey_compose_priority, $accesskey_compose_on_read,
           $accesskey_compose_on_delivery, $accesskey_compose_signature,
           $accesskey_compose_save_draft, $accesskey_compose_send;
    $oTemplate->assign('accesskey_compose_priority', $accesskey_compose_priority);
    $oTemplate->assign('accesskey_compose_on_read', $accesskey_compose_on_read);
    $oTemplate->assign('accesskey_compose_on_delivery', $accesskey_compose_on_delivery);
    $oTemplate->assign('accesskey_compose_signature', $accesskey_compose_signature);
    $oTemplate->assign('accesskey_compose_save_draft', $accesskey_compose_save_draft);
    $oTemplate->assign('accesskey_compose_send', $accesskey_compose_send);

    $oTemplate->display('compose_buttons.tpl');
}

function checkInput ($show) {
    /*
     * I implemented the $show variable because the error messages
     * were getting sent before the page header.  So, I check once
     * using $show=false, and then when i'm ready to display the error
     * message, show=true
     */
    global $send_to, $send_to_cc, $send_to_bcc;

    $send_to = trim($send_to);
    $send_to_cc = trim($send_to_cc);
    $send_to_bcc = trim($send_to_bcc);
    if (empty($send_to) && empty($send_to_cc) && empty($send_to_bcc)) {
        if ($show) {
            plain_error_message(_("You have not filled in the \"To:\" field."));
        }
        return false;
    }
    return true;
} /* function checkInput() */


/* True if FAILURE */
function saveAttachedFiles($session) {
    global $composeMessage, $username, $attachment_dir;

    /* get out of here if no file was attached at all */
    if (! is_uploaded_file($_FILES['attachfile']['tmp_name']) ) {
        return true;
    }

    $hashed_attachment_dir = getHashedDir($username, $attachment_dir);
    $localfilename = sq_get_attach_tempfile();
    $fullpath = $hashed_attachment_dir . '/' . $localfilename;

    // m_u_f works better with restricted PHP installs (safe_mode, open_basedir),
    // if that doesn't work, try a simple rename.
    if (!sq_call_function_suppress_errors('move_uploaded_file', array($_FILES['attachfile']['tmp_name'], $fullpath))) {
        if (!sq_call_function_suppress_errors('rename', array($_FILES['attachfile']['tmp_name'], $fullpath))) {
            return true;
        }
    }
    $type = strtolower($_FILES['attachfile']['type']);
    $name = $_FILES['attachfile']['name'];
    $composeMessage->initAttachment($type, $name, $localfilename);
}

/**
  * Parse strings such as "8M" and "2k" into their corresponding size in bytes
  *
  * NOTE: This function only recognizes the suffixes "K", "M" and "G"
  *       and will probably break very easily if the given size is in
  *       some completely different format.
  *
  * @param string $ini_size The input string to be converted
  *
  * @return mixed Boolean FALSE if something went wrong (the value passed in
  *               was empty?, the suffix was not recognized?), otherwise, the
  *               converted size in bytes (just the number (as an integer),
  *               no unit identifier included)
  *
  */
function getByteSize($ini_size) {

    if(!$ini_size) {
        return FALSE;
    }

    $ini_size = trim($ini_size);

    // if there's some kind of letter at the end of the string we need to multiply.
    if(!is_numeric(substr($ini_size, -1))) {

        switch(strtoupper(substr($ini_size, -1))) {
            case 'G':
                $bytesize = 1073741824;
                break;
            case 'M':
                $bytesize = 1048576;
                break;
            case 'K':
                $bytesize = 1024;
                break;
             default:
                return FALSE;
        }

        return ($bytesize * (int)substr($ini_size, 0, -1));
    }

    return $ini_size;
}


/**
 * temporary function to make use of the deliver class.
 * In the future the responsible backend should be automaticly loaded
 * and conf.pl should show a list of available backends.
 * The message also should be constructed by the message class.
 *
 * @param object $composeMessage The message being sent.  Please note
 *                               that it is passed by reference and
 *                               will be returned modified, with additional
 *                               headers, such as Message-ID, Date, In-Reply-To,
 *                               References, and so forth.
 *
 * @return boolean FALSE if delivery failed, or some non-FALSE value
 *                 upon success.
 *
 */
function deliverMessage(&$composeMessage, $draft=false) {
    global $send_to, $send_to_cc, $send_to_bcc, $mailprio, $subject, $body,
        $username, $identity, $idents, $data_dir,
        $request_mdn, $request_dr, $default_charset, $useSendmail,
        $domain, $action, $default_move_to_sent, $move_to_sent,
        $imapServerAddress, $imapPort, $sent_folder, $key;

    $rfc822_header = $composeMessage->rfc822_header;

    $abook = addressbook_init(false, true);
    $rfc822_header->to = $rfc822_header->parseAddress($send_to,true, array(), '', $domain, array(&$abook,'lookup'));
    $rfc822_header->cc = $rfc822_header->parseAddress($send_to_cc,true,array(), '',$domain, array(&$abook,'lookup'));
    $rfc822_header->bcc = $rfc822_header->parseAddress($send_to_bcc,true, array(), '',$domain, array(&$abook,'lookup'));
    $rfc822_header->priority = $mailprio;
    $rfc822_header->subject = $subject;

    $special_encoding='';
    if (strtolower($default_charset) == 'iso-2022-jp') {
        if (mb_detect_encoding($body) == 'ASCII') {
            $special_encoding = '8bit';
        } else {
            $body = mb_convert_encoding($body, 'JIS');
            $special_encoding = '7bit';
        }
    }
    $composeMessage->setBody($body);

    $reply_to = '';
    $reply_to  = $idents[$identity]['reply_to'];
    if ($reply_to && strpos($reply_to, '@') === FALSE)
        $reply_to .= '@' . $domain;
    
    $from_addr = build_from_header($identity);
    $rfc822_header->from = $rfc822_header->parseAddress($from_addr,true);
    if ($reply_to) {
        $rfc822_header->reply_to = $rfc822_header->parseAddress($reply_to,true);
    }
    /* Receipt: On Read */
    if (isset($request_mdn) && $request_mdn) {
        $rfc822_header->dnt = $rfc822_header->parseAddress($from_addr,true);
    } elseif (isset($rfc822_header->dnt)) {
        unset($rfc822_header->dnt);
    }

    /* Receipt: On Delivery */
    if (!empty($request_dr)) {
//FIXME: it would be better to fiddle with headers inside of the message object or possibly when delivering the message to its destination; is this possible?
        $rfc822_header->more_headers['Return-Receipt-To'] = $from_addr;
    } elseif (isset($rfc822_header->more_headers['Return-Receipt-To'])) {
        unset($rfc822_header->more_headers['Return-Receipt-To']);
    }

    /* multipart messages */
    if (count($composeMessage->entities)) {
        $message_body = new Message();
        $message_body->body_part = $composeMessage->body_part;
        $composeMessage->body_part = '';
        $mime_header = new MessageHeader;
        $mime_header->type0 = 'text';
        $mime_header->type1 = 'plain';
        if ($special_encoding) {
            $mime_header->encoding = $special_encoding;
        } else {
            $mime_header->encoding = '8bit';
        }
        if ($default_charset) {
            $mime_header->parameters['charset'] = $default_charset;
        }
        $message_body->mime_header = $mime_header;
        array_unshift($composeMessage->entities, $message_body);
        $content_type = new ContentType('multipart/mixed');
    } else {
        $content_type = new ContentType('text/plain');
        if ($special_encoding) {
            $rfc822_header->encoding = $special_encoding;
        } else {
            $rfc822_header->encoding = '8bit';
        }
        if ($default_charset) {
            $content_type->properties['charset']=$default_charset;
        }
    }

    $rfc822_header->content_type = $content_type;
    $composeMessage->rfc822_header = $rfc822_header;
    if ($action == 'reply' || $action == 'reply_all') {
        global $passed_id, $passed_ent_id;
        $reply_id = $passed_id;
        $reply_ent_id = $passed_ent_id;
    } else {
        $reply_id = '';
        $reply_ent_id = '';
    }

    /* Here you can modify the message structure just before we hand
       it over to deliver; plugin authors note that $composeMessage
       is sent and modified by reference since 1.5.2 */
    do_hook('compose_send', $composeMessage);

    if (!$useSendmail && !$draft) {
        require_once(SM_PATH . 'class/deliver/Deliver_SMTP.class.php');
        $deliver = new Deliver_SMTP();
        global $smtpServerAddress, $smtpPort, $pop_before_smtp, $pop_before_smtp_host;

        $authPop = (isset($pop_before_smtp) && $pop_before_smtp) ? true : false;
        if (empty($pop_before_smtp_host)) $pop_before_smtp_host = $smtpServerAddress;
        get_smtp_user($user, $pass);
        $stream = $deliver->initStream($composeMessage,$domain,0,
                $smtpServerAddress, $smtpPort, $user, $pass, $authPop, $pop_before_smtp_host);
    } elseif (!$draft) {
        require_once(SM_PATH . 'class/deliver/Deliver_SendMail.class.php');
        global $sendmail_path, $sendmail_args;
        // Check for outdated configuration
        if (!isset($sendmail_args)) {
            if ($sendmail_path=='/var/qmail/bin/qmail-inject') {
                $sendmail_args = '';
            } else {
                $sendmail_args = '-i -t';
            }
        }
        $deliver = new Deliver_SendMail(array('sendmail_args'=>$sendmail_args));
        $stream = $deliver->initStream($composeMessage,$sendmail_path);
    } elseif ($draft) {
        global $draft_folder;
        $imap_stream = sqimap_login($username, false, $imapServerAddress,
                $imapPort, 0);
        if (sqimap_mailbox_exists ($imap_stream, $draft_folder)) {
            require_once(SM_PATH . 'class/deliver/Deliver_IMAP.class.php');
            $imap_deliver = new Deliver_IMAP();
            $success = $imap_deliver->mail($composeMessage, $imap_stream, $reply_id, $reply_ent_id, $imap_stream, $draft_folder);
            sqimap_logout($imap_stream);
            unset ($imap_deliver);
            $composeMessage->purgeAttachments();
            return $success;
        } else {
            $msg  = '<br />'.sprintf(_("Error: Draft folder %s does not exist."), sm_encode_html_special_chars($draft_folder));
            plain_error_message($msg);
            return false;
        }
    }
    $success = false;
    if ($stream) {
        $deliver->mail($composeMessage, $stream, $reply_id, $reply_ent_id);
        $success = $deliver->finalizeStream($stream);
    }
    if (!$success) {
        // $deliver->dlv_server_msg is not always server's reply
        $msg = _("Message not sent.")
             . "<br />\n"
             . (isset($deliver->dlv_msg) ? $deliver->dlv_msg : '');
        if (!empty($deliver->dlv_server_msg)) {
            // add 'server replied' part only when it is not empty.
            // Delivery error can be generated by delivery class itself
            $msg .= '<br />'
                  . _("Server replied:") . ' '
                  . (isset($deliver->dlv_ret_nr) ? $deliver->dlv_ret_nr . ' ' : '')
                  . nl2br(sm_encode_html_special_chars($deliver->dlv_server_msg));
        }
        plain_error_message($msg);
    } else {
        unset ($deliver);
        $imap_stream = sqimap_login($username, false, $imapServerAddress, $imapPort, 0);


        // mark as replied or forwarded if applicable
        //
        global $what, $iAccount, $startMessage, $passed_id, $fwduid, $mailbox;

        if ($action=='reply' || $action=='reply_all' || $action=='forward' || $action=='forward_as_attachment') {
            require(SM_PATH . 'functions/mailbox_display.php');
            $aMailbox = sqm_api_mailbox_select($imap_stream, $iAccount, $mailbox,array('setindex' => $what, 'offset' => $startMessage),array());
            switch($action) {
            case 'reply':
            case 'reply_all':
                // check if we are allowed to set the \\Answered flag
                if (in_array('\\answered',$aMailbox['PERMANENTFLAGS'], true)) {
                    $aUpdatedMsgs = sqimap_toggle_flag($imap_stream, array($passed_id), '\\Answered', true, false);
                    if (isset($aUpdatedMsgs[$passed_id]['FLAGS'])) {
                        /**
                        * Only update the cached headers if the header is
                        * cached.
                        */
                        if (isset($aMailbox['MSG_HEADERS'][$passed_id])) {
                            $aMailbox['MSG_HEADERS'][$passed_id]['FLAGS'] = $aMsg['FLAGS'];
                        }
                    }
                }
                break;
            case 'forward':
            case 'forward_as_attachment':
                // check if we are allowed to set the $Forwarded flag (RFC 4550 paragraph 2.8)
                if (in_array('$forwarded',$aMailbox['PERMANENTFLAGS'], true) ||
                    in_array('\\*',$aMailbox['PERMANENTFLAGS'])) {

                    // when forwarding as an attachment from the message
                    // list, passed_id is not used, need to get UID(s)
                    // from the query string
                    //
                    if (empty($passed_id) && !empty($fwduid))
                        $ids = explode('_', $fwduid);
                    else
                        $ids = array($passed_id);

                    $aUpdatedMsgs = sqimap_toggle_flag($imap_stream, $ids, '$Forwarded', true, false);

                    foreach ($ids as $id) {
                        if (isset($aUpdatedMsgs[$id]['FLAGS'])) {
                            if (isset($aMailbox['MSG_HEADERS'][$id])) {
                                $aMailbox['MSG_HEADERS'][$id]['FLAGS'] = $aMsg['FLAGS'];
                            }
                        }
                    }
                }
                break;
            }

            /**
             * Write mailbox with updated seen flag information back to cache.
             */
            if(isset($aUpdatedMsgs[$passed_id])) {
                $mailbox_cache[$iAccount.'_'.$aMailbox['NAME']] = $aMailbox;
                sqsession_register($mailbox_cache,'mailbox_cache');
            }

        }


        // move to sent folder
        //
        $move_to_sent = getPref($data_dir,$username,'move_to_sent');
        if (isset($default_move_to_sent) && ($default_move_to_sent != 0)) {
            $svr_allow_sent = true;
        } else {
            $svr_allow_sent = false;
        }

        if (isset($sent_folder) && (($sent_folder != '') || ($sent_folder != 'none'))
                && sqimap_mailbox_exists( $imap_stream, $sent_folder)) {
            $fld_sent = true;
        } else {
            $fld_sent = false;
        }

        if ((isset($move_to_sent) && ($move_to_sent != 0)) || (!isset($move_to_sent))) {
            $lcl_allow_sent = true;
        } else {
            $lcl_allow_sent = false;
        }

        if (($fld_sent && $svr_allow_sent && !$lcl_allow_sent) || ($fld_sent && $lcl_allow_sent)) {
            if ($action == 'reply' || $action == 'reply_all') {
                $save_reply_with_orig=getPref($data_dir,$username,'save_reply_with_orig');
                if ($save_reply_with_orig) {
                    $sent_folder = $mailbox;
                }
            }
            require_once(SM_PATH . 'class/deliver/Deliver_IMAP.class.php');
            $imap_deliver = new Deliver_IMAP();
            $imap_deliver->mail($composeMessage, $imap_stream, $reply_id, $reply_ent_id, $imap_stream, $sent_folder);
            unset ($imap_deliver);
        }


        // final cleanup
        //
        $composeMessage->purgeAttachments();
        sqimap_logout($imap_stream);

    }
    return $success;
}