Correctly update cached message flags in ALL places when they are changed by the...

[squirrelmail.git] / src / read_body.php

<?php

/**
 * read_body.php
 *
 * This file is used for reading the msgs array and displaying
 * the resulting emails in the right frame.
 *
 * @copyright &copy; 1999-2007 The SquirrelMail Project Team
 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
 * @version $Id$
 * @package squirrelmail
 */

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

/* SquirrelMail required files. */
require_once(SM_PATH . 'functions/imap.php');
require_once(SM_PATH . 'functions/imap_asearch.php'); // => move to mailbox_display
require_once(SM_PATH . 'functions/mime.php');
require_once(SM_PATH . 'functions/date.php');
require_once(SM_PATH . 'functions/url_parser.php');
require_once(SM_PATH . 'functions/identity.php');
require_once(SM_PATH . 'functions/mailbox_display.php');
require_once(SM_PATH . 'functions/forms.php');
require_once(SM_PATH . 'functions/attachment_common.php');
require_once(SM_PATH . 'functions/compose.php');

/**
 * Given an IMAP message id number, this will look it up in the cached
 * and sorted msgs array and return the index of the next message
 *
 * @param int $passed_id The current message UID
 * @return the index of the next valid message from the array
 */
function findNextMessage($uidset,$passed_id='backwards') {
    if (!is_array($uidset)) {
        return -1;
    }
    if ($passed_id=='backwards' || !is_array($uidset)) { // check for backwards compattibilty gpg plugin
        $passed_id = $uidset;
    }
    $result = sqm_array_get_value_by_offset($uidset,$passed_id,1);
    if ($result === false) {
        return -1;
    } else {
        return $result;
    }
}

/**
 * Given an IMAP message id number, this will look it up in the cached
 * and sorted msgs array and return the index of the previous message
 *
 * @param int $passed_id The current message UID
 * @return the index of the next valid message from the array
 */

function findPreviousMessage($uidset, $passed_id) {
    if (!is_array($uidset)) {
        return -1;
    }
    $result = sqm_array_get_value_by_offset($uidset,$passed_id,-1);
    if ($result === false) {
        return -1;
    } else {
        return $result;
    }
}

function html_toggle_href ($mailbox, $passed_id, $passed_ent_id, $message) {
    global $base_uri, $show_html_default;

    $has_html = false;
    if ($message->header->type0 == 'message' && $message->header->type1 == 'rfc822') {
        $type0 = $message->rfc822_header->content_type->type0;
        $type1 = $message->rfc822_header->content_type->type1;
    } else {
        $type0 = $message->header->type0;
        $type1 = $message->header->type1;
    }
    if($type0 == 'multipart' &&
       ($type1 == 'alternative' || $type1 == 'mixed' || $type1 == 'related' || $type1=='signed')) {
        if ($message->findDisplayEntity(array(), array('text/html'), true)) {
            $has_html = true;
        }
    }
    /*
     * Normal single part message so check its type.
     */
    else {
        if($type0 == 'text' && $type1 == 'html') {
            $has_html = true;
        }
    }
    if($has_html == true) {
        $vars = array('passed_ent_id', 'show_more', 'show_more_cc', 'override_type0', 'override_type1', 'startMessage','where', 'what');

        $new_link = $base_uri . 'src/read_body.php?passed_id=' . urlencode($passed_id) .
                    '&amp;passed_ent_id=' . urlencode($passed_ent_id) .
                    '&amp;mailbox=' . urlencode($mailbox);
        foreach($vars as $var) {
            if(sqgetGlobalVar($var, $temp)) {
                $new_link .= '&amp;' . $var . '=' . urlencode($temp);
            }
        }

        if($show_html_default == 1) {
            $new_link .= '&amp;show_html_default=0';
        } else {
            $new_link .= '&amp;show_html_default=1';
        }
        return $new_link;
    }
    return '';
}

function ServerMDNSupport($aFlags) {
    /* escaping $ doesn't work -> \x36 */
    return ( in_array('$mdnsent',$aFlags,true) ||
             in_array('\\*',$aFlags,true) ) ;
}

function SendMDN ( $mailbox, $passed_id, $message, $imapConnection) {
    global $username, $attachment_dir, $color,
           $squirrelmail_language, $default_charset,
           $languages, $useSendmail, $domain, $sent_folder;

    sqgetGlobalVar('SERVER_NAME', $SERVER_NAME, SQ_SERVER);

    $header = $message->rfc822_header;

    $rfc822_header = new Rfc822Header();
    $content_type  = new ContentType('multipart/report');
    $content_type->properties['report-type']='disposition-notification';

    set_my_charset();
    if ($default_charset) {
        $content_type->properties['charset']=$default_charset;
    }
    $rfc822_header->content_type = $content_type;
    $rfc822_header->to[] = $header->dnt;
    $rfc822_header->subject = _("Read:") . ' ' . encodeHeader($header->subject);

    $idents = get_identities();
    $needles = array();
    if ($header->to) {
        foreach ($header->to as $message_to) {
             $needles[] = $message_to->mailbox.'@'.$message_to->host;
        }
    }
    $identity = find_identity($needles);
    $from_addr = build_from_header($identity);
    $reply_to = isset($idents[$identity]['reply_to']) ? $idents[$identity]['reply_to'] : '';
    // FIXME: this must actually be the envelope address of the orginal message,
    // but do we have that information? For now the first identity is our best guess.
    $final_recipient = $idents[0]['email_address'];

    $rfc822_header->from = $rfc822_header->parseAddress($from_addr,true);
    if ($reply_to) {
       $rfc822_header->reply_to = $rfc822_header->parseAddress($reply_to,true);
    }

    // part 1 (RFC2298)
    $senton = getLongDateString( $header->date, $header->date_unparsed );
    $to_array = $header->to;
    $to = '';
    foreach ($to_array as $line) {
        $to .= ' '.$line->getAddress();
    }
    $now = getLongDateString( time() );
    set_my_charset();
    $body = _("Your message") . "\r\n\r\n" .
            "\t" . _("To") . ': ' . decodeHeader($to,false,false) . "\r\n" .
            "\t" . _("Subject") . ': ' . decodeHeader($header->subject,false,false) . "\r\n" .
            "\t" . _("Sent") . ': ' . $senton . "\r\n" .
            "\r\n" .
            sprintf( _("Was displayed on %s"), $now );

    $special_encoding = '';
    if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
        function_exists($languages[$squirrelmail_language]['XTRA_CODE'] . '_encode')) {
        $body = call_user_func($languages[$squirrelmail_language]['XTRA_CODE'] . '_encode', $body);
        if (strtolower($default_charset) == 'iso-2022-jp') {
            if (mb_detect_encoding($body) == 'ASCII') {
                $special_encoding = '8bit';
            } else {
                $body = mb_convert_encoding($body, 'JIS');
                $special_encoding = '7bit';
            }
        }
    } elseif (sq_is8bit($body)) {
        $special_encoding = '8bit';
    }
    $part1 = new Message();
    $part1->setBody($body);
    $mime_header = new MessageHeader;
    $mime_header->type0 = 'text';
    $mime_header->type1 = 'plain';
    if ($special_encoding) {
        $mime_header->encoding = $special_encoding;
    } else {
        $mime_header->encoding = 'us-ascii';
    }
    if ($default_charset) {
        $mime_header->parameters['charset'] = $default_charset;
    }
    $part1->mime_header = $mime_header;

    // part2  (RFC2298)
    $original_recipient  = $to;
    $original_message_id = $header->message_id;

    $report = "Reporting-UA : $SERVER_NAME ; SquirrelMail (version " . SM_VERSION . ") \r\n";
    if ($original_recipient != '') {
        $report .= "Original-Recipient : $original_recipient\r\n";
    }
    $report .= "Final-Recipient: rfc822; $final_recipient\r\n" .
              "Original-Message-ID : $original_message_id\r\n" .
              "Disposition: manual-action/MDN-sent-manually; displayed\r\n";

    $part2 = new Message();
    $part2->setBody($report);
    $mime_header = new MessageHeader;
    $mime_header->type0 = 'message';
    $mime_header->type1 = 'disposition-notification';
    $mime_header->encoding = 'us-ascii';
    $part2->mime_header = $mime_header;

    $composeMessage = new Message();
    $composeMessage->rfc822_header = $rfc822_header;
    $composeMessage->addEntity($part1);
    $composeMessage->addEntity($part2);


    if ($useSendmail) {
        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);
    } else {
        require_once(SM_PATH . 'class/deliver/Deliver_SMTP.class.php');
        $deliver = new Deliver_SMTP();
        global $smtpServerAddress, $smtpPort, $pop_before_smtp;
        $authPop = (isset($pop_before_smtp) && $pop_before_smtp) ? true : false;
        get_smtp_user($user, $pass);
        $stream = $deliver->initStream($composeMessage,$domain,0,
                                       $smtpServerAddress, $smtpPort, $user, $pass, $authPop);
    }
    $success = false;
    if ($stream) {
        $length  = $deliver->mail($composeMessage, $stream);
        $success = $deliver->finalizeStream($stream);
    }
    if (!$success) {
        $msg = _("Message not sent.") . "<br />\n" .
            $deliver->dlv_msg;
        if (! empty($deliver->dlv_server_msg)) {
            $msg.= '<br />' .
                _("Server replied:") . ' ' . $deliver->dlv_ret_nr . ' ' .
                nl2br(htmlspecialchars($deliver->dlv_server_msg));
        }
        plain_error_message($msg, $color);
    } else {
        unset ($deliver);
        if (sqimap_mailbox_exists ($imapConnection, $sent_folder)) {
            $sid = sqimap_append ($imapConnection, $sent_folder, $length);
            require_once(SM_PATH . 'class/deliver/Deliver_IMAP.class.php');
            $imap_deliver = new Deliver_IMAP();
            $imap_deliver->mail($composeMessage, $imapConnection);
            sqimap_append_done ($imapConnection, $sent_folder);
            unset ($imap_deliver);
        }
    }
    return $success;
}

function ToggleMDNflag ($set ,$imapConnection, $mailbox, $passed_id) {
    $sg   =  $set?'+':'-';
    $cmd  = 'STORE ' . $passed_id . ' ' . $sg . 'FLAGS ($MDNSent)';
    $read = sqimap_run_command ($imapConnection, $cmd, true, $response,
                                $readmessage, TRUE);
}

function formatRecipientString($recipients, $item ) {
    global $show_more_cc, $show_more, $show_more_bcc,
           $PHP_SELF, $oTemplate;

    $string = '';
    if ((is_array($recipients)) && (isset($recipients[0]))) {
        $show = false;

        if ($item == 'to') {
            if ($show_more) {
                $show = true;
                $url = set_url_var($PHP_SELF, 'show_more',0);
            } else {
                $url = set_url_var($PHP_SELF, 'show_more',1);
            }
        } else if ($item == 'cc') {
            if ($show_more_cc) {
                $show = true;
                $url = set_url_var($PHP_SELF, 'show_more_cc',0);
            } else {
                $url = set_url_var($PHP_SELF, 'show_more_cc',1);
            }
        } else if ($item == 'bcc') {
            if ($show_more_bcc) {
                $show = true;
                $url = set_url_var($PHP_SELF, 'show_more_bcc',0);
            } else {
                $url = set_url_var($PHP_SELF, 'show_more_bcc',1);
            }
        }

        $a = array();
        foreach ($recipients as $r) {
            $a[] = array(
                            'Name'  => htmlspecialchars($r->getAddress(false)),
                            'Email' => htmlspecialchars($r->getEmail()),
                            'Full'  => htmlspecialchars($r->getAddress(true))
                        );
        }

        $oTemplate->assign('which_field', $item);
        $oTemplate->assign('recipients', $a);
        $oTemplate->assign('more_less_toggle_href', $url);
        $oTemplate->assign('show_more', $show);

        $string = $oTemplate->fetch('read_recipient_list.tpl');
    }
    return $string;
}

function formatEnvheader($aMailbox, $passed_id, $passed_ent_id, $message,
                         $color, $FirstTimeSee) {
    global $default_use_mdn, $default_use_priority,
           $show_xmailer_default, $mdn_user_support, $PHP_SELF,
           $squirrelmail_language, $oTemplate;

    $mailbox = $aMailbox['NAME'];

    $header = $message->rfc822_header;
    $env = array();
    $env[_("Subject")] = str_replace("&nbsp;"," ",decodeHeader($header->subject));

    $from_name = $header->getAddr_s('from');
    if (!$from_name)
        $from_name = $header->getAddr_s('sender');
    if (!$from_name)
        $env[_("From")] = _("Unknown sender");
    else
        $env[_("From")] = decodeHeader($from_name);
    $env[_("Date")] = getLongDateString($header->date, $header->date_unparsed);
    $env[_("To")] = formatRecipientString($header->to, "to");
    $env[_("Cc")] = formatRecipientString($header->cc, "cc");
    $env[_("Bcc")] = formatRecipientString($header->bcc, "bcc");
    if ($default_use_priority) {
        $oTemplate->assign('message_priority', $header->priority);
        $env[_("Priority")] = $oTemplate->fetch('read_message_priority.tpl');
    }
    if ($show_xmailer_default) {
        $oTemplate->assign('xmailer', decodeHeader($header->xmailer));
        $env[_("Mailer")] = $oTemplate->fetch('read_xmailer.tpl');
    }
    if ($default_use_mdn) {
        if ($mdn_user_support) {
            if ($header->dnt) {
                $mdn_url = $PHP_SELF;
                $mdn_url = set_url_var($mdn_url, 'mailbox', urlencode($mailbox));
                $mdn_url = set_url_var($mdn_url, 'passed_id', $passed_id);
                $mdn_url = set_url_var($mdn_url, 'passed_ent_id', $passed_ent_id);
                $mdn_url = set_url_var($mdn_url, 'sendreceipt', 1);

                $oTemplate->assign('read_receipt_sent', $message->is_mdnsent);
                $oTemplate->assign('first_time_reading', $FirstTimeSee);
                $oTemplate->assign('send_receipt_href', $mdn_url);

                $env[_("Read Receipt")] = $oTemplate->fetch('read_handle_receipt.tpl');
            }
        }
    }

    $statuses = array();
    if (isset($aMailbox['MSG_HEADERS'][$passed_id]['FLAGS'])) {
        if (isset($aMailbox['MSG_HEADERS'][$passed_id]['FLAGS']['\\deleted']) &&
                  $aMailbox['MSG_HEADERS'][$passed_id]['FLAGS']['\\deleted'] === true) {
            $statuses[] = _("deleted");
        }
        if (isset($aMailbox['MSG_HEADERS'][$passed_id]['FLAGS']['\\answered']) &&
                  $aMailbox['MSG_HEADERS'][$passed_id]['FLAGS']['\\answered'] === true) {
            $statuses[] = _("answered");
        }
        if (isset($aMailbox['MSG_HEADERS'][$passed_id]['FLAGS']['\\draft']) &&
                  $aMailbox['MSG_HEADERS'][$passed_id]['FLAGS']['\\draft'] === true) {
            $statuses[] = _("draft");
        }
        if (isset($aMailbox['MSG_HEADERS'][$passed_id]['FLAGS']['\\flagged']) &&
                  $aMailbox['MSG_HEADERS'][$passed_id]['FLAGS']['\\flagged'] === true) {
            $statuses[] = _("flagged");
        }
        if ( count($statuses) ) {
            $env[_("Status")] = implode(', ', $statuses);
        }
    }

    $env[_("Options")] = formatToolbar($mailbox, $passed_id, $passed_ent_id, $message, $color);


    $oTemplate->assign('headers_to_display', $env);

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

/**
 * Format message toolbar
 *
 * @param string $mailbox Name of current mailbox
 * @param int $passed_id UID of current message
 * @param int $passed_ent_id Id of entity within message
 * @param object $message Current message object
 * @param object $mbx_response
 */
function formatMenubar($aMailbox, $passed_id, $passed_ent_id, $message, $removedVar, $nav_on_top = TRUE) {
    global $base_uri, $draft_folder, $where, $what, $sort,
           $startMessage, $PHP_SELF, $save_as_draft,
           $enable_forward_as_attachment, $imapConnection, $lastTargetMailbox,
           $delete_prev_next_display, $show_copy_buttons,
           $compose_new_win, $compose_width, $compose_height,
           $oTemplate;

    //FIXME cleanup argument list, use $aMailbox where possible
    $mailbox = $aMailbox['NAME'];

    $urlMailbox = urlencode($mailbox);

    $msgs_url = $base_uri . 'src/';

    // Create Prev & Next links
    // Handle nested entities first (i.e. Mime Attach parts)
    $prev_href = $next_href = $up_href = $del_href = $del_prev_href = $del_next_href = '';
    $msg_list_href = $search_href = $view_msg_href = '';
    if (isset($passed_ent_id) && $passed_ent_id) {
        // code for navigating through attached message/rfc822 messages
        $url = set_url_var($PHP_SELF, 'passed_ent_id',0);
        $entities     = array();
        $entity_count = array();
        $c = 0;

        foreach($message->parent->entities as $ent) {
            if ($ent->type0 == 'message' && $ent->type1 == 'rfc822') {

                $c++;
                $entity_count[$c] = $ent->entity_id;
                $entities[$ent->entity_id] = $c;
            }
        }

        if(isset($entities[$passed_ent_id]) && $entities[$passed_ent_id] > 1) {
            $prev_ent_id = $entity_count[$entities[$passed_ent_id] - 1];
            $prev_href = set_url_var($PHP_SELF, 'passed_ent_id', $prev_ent_id);
        }

        if(isset($entities[$passed_ent_id]) && $entities[$passed_ent_id] < $c) {
            $next_ent_id = $entity_count[$entities[$passed_ent_id] + 1];
            $next_href = set_url_var($PHP_SELF, 'passed_ent_id', $next_ent_id);
        }

        $par_ent_id = $message->parent->entity_id;
        if ($par_ent_id) {
            $par_ent_id = substr($par_ent_id,0,-2);
            if ( $par_ent_id != 0 ) {
                $up_href = set_url_var($PHP_SELF, 'passed_ent_id',$par_ent_id);
            }
        }

        $view_msg_href = $url;

    // Prev/Next links for regular messages
    } else if ( true ) { //!(isset($where) && isset($what)) ) {
        $prev = findPreviousMessage($aMailbox['UIDSET'][$what], $passed_id);
        $next = findNextMessage($aMailbox['UIDSET'][$what],$passed_id);

        if ($prev >= 0) {
            $prev_href = $base_uri . 'src/read_body.php?passed_id='.$prev.
                   '&amp;mailbox='.$urlMailbox.'&amp;sort='.$sort.
                   "&amp;where=$where&amp;what=$what" .
                   '&amp;startMessage='.$startMessage.'&amp;show_more=0';
        }

        if ($next >= 0) {
            $next_href = $base_uri . 'src/read_body.php?passed_id='.$next.
                   '&amp;mailbox='.$urlMailbox.'&amp;sort='.$sort.
                   "&amp;where=$where&amp;what=$what" .
                   '&amp;startMessage='.$startMessage.'&amp;show_more=0';
        }

        // Only bother with Delete & Prev and Delete & Next IF
        // top display is enabled.
        if ( $delete_prev_next_display == 1 &&
               in_array('\\deleted', $aMailbox['PERMANENTFLAGS'],true) ) {
            if ($prev >= 0) {
                $del_prev_href = $base_uri . 'src/read_body.php?passed_id='.$prev.
                       '&amp;mailbox='.$urlMailbox.'&amp;sort='.$sort.
                       '&amp;startMessage='.$startMessage.'&amp;show_more=0'.
                       "&amp;where=$where&amp;what=$what" .
                       '&amp;delete_id='.$passed_id;
            }

            if ($next >= 0) {
                $del_next_href = $base_uri . 'src/read_body.php?passed_id='.$next.
                       '&amp;mailbox='.$urlMailbox.'&amp;sort='.$sort.
                       '&amp;startMessage='.$startMessage.'&amp;show_more=0'.
                       "&amp;where=$where&amp;what=$what" .
                       '&amp;delete_id='.$passed_id;
            }
        }
    }

    // Start with Search Results or Message List link.
    $list_xtra = "?where=read_body.php&amp;what=$what&amp;mailbox=" . $urlMailbox.
                 "&amp;startMessage=$startMessage";
    $msg_list_href = $base_uri .'src/right_main.php'. $list_xtra;
    $search_href = $where=='search.php' ? $base_uri .'src/search.php?'.$list_xtra : '';

    $comp_uri = $base_uri.'src/compose.php' .
                '?passed_id=' . $passed_id .
                '&amp;mailbox=' . $urlMailbox .
                '&amp;startMessage=' . $startMessage .
                 (isset($passed_ent_id) ? '&amp;passed_ent_id='.$passed_ent_id : '');

    // Start form for reply/reply all/forward..
    $target = '';
    $on_click='';
    $method='post';
    $onsubmit='';
    if ($compose_new_win == '1') {
        if (!preg_match("/^[0-9]{3,4}$/", $compose_width)) {
            $compose_width = '640';
        }
        if (!preg_match("/^[0-9]{3,4}$/", $compose_height)) {
            $compose_height = '550';
        }
        if ( checkForJavascript() ) {
          $on_click='comp_in_new_form(\''.$comp_uri.'\', this, this.form,'. $compose_width .',' . $compose_height .')';
          $comp_uri = 'javascript:void(0)';
          $method='get';
          $onsubmit = 'return false';
        } else {
          $target = '_blank';
        }
    }

    $oTemplate->assign('nav_on_top', $nav_on_top);

    $oTemplate->assign('prev_href', $prev_href);
    $oTemplate->assign('up_href', $up_href);
    $oTemplate->assign('next_href', $next_href);
    $oTemplate->assign('del_prev_href', $del_prev_href);
    $oTemplate->assign('del_next_href', $del_next_href);
    $oTemplate->assign('view_msg_href', $view_msg_href);

    $oTemplate->assign('message_list_href', $msg_list_href);
    $oTemplate->assign('search_href', $search_href);

    $oTemplate->assign('form_extra', '');
    $oTemplate->assign('form_method', $method);
    $oTemplate->assign('form_target', $target);
    $oTemplate->assign('form_onsubmit', $onsubmit);
    $oTemplate->assign('compose_href', $comp_uri);
    $oTemplate->assign('button_onclick', $on_click);
    $oTemplate->assign('forward_as_attachment_enabled', $enable_forward_as_attachment==1);

    //FIXME: I am surprised these aren't already given to the template; probably needs to be given at a higher level, so I have NO IDEA if this is the right place to do this...  adding them so template can construct its own API calls... we can build those herein too if preferrable
    $oTemplate->assign('mailbox', $aMailbox['NAME']);
    $oTemplate->assign('passed_id', $passed_id);
    $oTemplate->assign('what', $what);

    // If Draft folder - create Resume link
    $resume_draft = $edit_as_new = false;
    if (($mailbox == $draft_folder) && ($save_as_draft)) {
        $resume_draft = true; 'smaction_draft';
    } else if (handleAsSent($mailbox)) {
        $edit_as_new = true;
    }
    $oTemplate->assign('can_resume_draft', $resume_draft);
    $oTemplate->assign('can_edit_as_new', $edit_as_new);

    $oTemplate->assign('mailboxes', sqimap_mailbox_option_array($imapConnection));
    if (in_array('\\deleted', $aMailbox['PERMANENTFLAGS'],true)) {
        $delete_url = $base_uri . "src/$where";
        $oTemplate->assign('can_be_deleted', true);
        $oTemplate->assign('move_delete_form_action', $base_uri.'src/'.$where);
        $oTemplate->assign('delete_form_extra', addHidden('mailbox', $aMailbox['NAME'])."\n" .
                                                addHidden('msg[0]', $passed_id)."\n" .
                                                addHidden('startMessage', $startMessage)."\n" );
        if (!(isset($passed_ent_id) && $passed_ent_id)) {
            $oTemplate->assign('can_be_moved', true);
            $oTemplate->assign('move_form_extra', addHidden('mailbox', $aMailbox['NAME'])."\n" .
                                                  addHidden('msg[0]', $passed_id)."\n" );
            $oTemplate->assign('last_move_target', isset($lastTargetMailbox) && !empty($lastTargetMailbox) ? $lastTargetMailbox : '');
            $oTemplate->assign('can_be_copied', $show_copy_buttons==1);
        } else {
            $oTemplate->assign('can_be_moved', false);
            $oTemplate->assign('move_form_extra', '');
            $oTemplate->assign('last_move_target', '');
            $oTemplate->assign('can_be_copied', false);
        }
    } else {
        $oTemplate->assign('can_be_deleted', false);
        $oTemplate->assign('move_delete_form_action', '');
        $oTemplate->assign('delete_form_extra', '');
        $oTemplate->assign('can_be_moved', false);
        $oTemplate->assign('move_form_extra', '');
        $oTemplate->assign('last_move_target', '');
        $oTemplate->assign('can_be_copied', false);
    }

    global $null;
    do_hook('read_body_menu', $null);

    if ($nav_on_top) {
        $oTemplate->display('read_menubar_nav.tpl');
        $oTemplate->display('read_menubar_buttons.tpl');
    } else {
        $oTemplate->display('read_menubar_buttons.tpl');
        $oTemplate->display('read_menubar_nav.tpl');
    }

}

function formatToolbar($mailbox, $passed_id, $passed_ent_id, $message, $color) {
    global $base_uri, $where, $what, $show_html_default,
           $oTemplate, $download_href,
           $unsafe_image_toggle_href, $unsafe_image_toggle_text;

    $urlMailbox = urlencode($mailbox);
    $urlPassed_id = urlencode($passed_id);
    $urlPassed_ent_id = urlencode($passed_ent_id);

    $query_string = 'mailbox=' . $urlMailbox . '&amp;passed_id=' . $urlPassed_id . '&amp;passed_ent_id=' . $urlPassed_ent_id;
    if (!empty($where)) {
        $query_string .= '&amp;where=' . urlencode($where);
    }
    if (!empty($what)) {
        $query_string .= '&amp;what=' . urlencode($what);
    }
    $url = $base_uri.'src/view_header.php?'.$query_string;


    // Build the printer friend link
    /* hackydiehack */
    if( !sqgetGlobalVar('view_unsafe_images', $view_unsafe_images, SQ_GET) ) {
        $view_unsafe_images = false;
    } else {
        $view_unsafe_images = true;
    }
    $pf_params = '?passed_ent_id=' . $urlPassed_ent_id .
                 '&mailbox=' . $urlMailbox .
                 '&passed_id=' . $urlPassed_id .
                 '&view_unsafe_images='. (bool) $view_unsafe_images .
                 '&show_html_default=' . $show_html_default;
    $links = array();
    $links[] = array (
                        'URL'   => $url,
                        'Text'  => _("View Full Header")
                     );
    $links[] = array (
                        'URL'   => $pf_params,
                        'Text'  => _("View Printable Version")
                     );
    $links[] = array (
                        'URL'   => $download_href,
                        'Text'  => _("Download this as a file")
                     );
    $toggle = html_toggle_href($mailbox, $passed_id, $passed_ent_id, $message);
    if (!empty($toggle)) {
        $links[] = array (
                            'URL'   => $toggle,
                            'Text'  => $show_html_default==1 ? _("View as plain text") : _("View as HTML")
                         );
    }
    if (!empty($unsafe_image_toggle_href)) {
        $links[] = array (
                            'URL'   => $unsafe_image_toggle_href,
                            'Text'  => $unsafe_image_toggle_text
                         );
    }

    do_hook('read_body_header_right', $links);

    $oTemplate->assign('links', $links);

    return $oTemplate->fetch('read_toolbar.tpl');
}

/***************************/
/*   Main of read_body.php */
/***************************/

/* get the globals we may need */

sqgetGlobalVar('delimiter', $delimiter,     SQ_SESSION);
sqgetGlobalVar('lastTargetMailbox', $lastTargetMailbox, SQ_SESSION);
if (!sqgetGlobalVar('messages', $messages, SQ_SESSION) ) {
    $messages = array();
}
sqgetGlobalVar('delayed_errors',  $delayed_errors,  SQ_SESSION);
if (is_array($delayed_errors)) {
    $oErrorHandler->AssignDelayedErrors($delayed_errors);
    sqsession_unregister("delayed_errors");
}
/** GET VARS */
sqgetGlobalVar('sendreceipt',   $sendreceipt,   SQ_GET);
if (!sqgetGlobalVar('where',         $where,         SQ_GET) ) {
    $where = 'right_main.php';
}
/*
 * Used as entry key to the list of uid's cached in the mailbox cache
 * we use the cached uid's to get the next and prev  message.
 */
if (!sqgetGlobalVar('what',          $what,          SQ_GET) ){
    $what = 0;
}
if ( sqgetGlobalVar('show_more', $temp,  SQ_GET) ) {
    $show_more = (int) $temp;
}
if ( sqgetGlobalVar('show_more_cc', $temp,  SQ_GET) ) {
    $show_more_cc = (int) $temp;
}
if ( sqgetGlobalVar('show_more_bcc', $temp,  SQ_GET) ) {
    $show_more_bcc = (int) $temp;
}
if ( sqgetGlobalVar('view_hdr', $temp,  SQ_GET) ) {
    $view_hdr = (int) $temp;
}

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

/** GET/POST VARS */
sqgetGlobalVar('passed_ent_id', $passed_ent_id);
sqgetGlobalVar('mailbox',       $mailbox);

if ( sqgetGlobalVar('passed_id', $temp) ) {
    $passed_id = (int) $temp;
}
if ( sqgetGlobalVar('sort', $temp) ) {
    $sort = (int) $temp;
}
if ( sqgetGlobalVar('startMessage', $temp) ) {
    $startMessage = (int) $temp;
} else {
    $startMessage = 1;
}
if(sqgetGlobalVar('show_html_default', $temp)) {
    $show_html_default = (int) $temp;
}

if(sqgetGlobalVar('view_unsafe_images', $temp)) {
    $view_unsafe_images = (int) $temp;
    if($view_unsafe_images == 1) {
        $show_html_default = 1;
    }
} else {
    $view_unsafe_images = 0;
}
/**
 * Retrieve mailbox cache
 */
sqgetGlobalVar('mailbox_cache',$mailbox_cache,SQ_SESSION);

/* end of get globals */
global $sqimap_capabilities, $lastTargetMailbox;

$imapConnection = sqimap_login($username, false, $imapServerAddress, $imapPort, 0);
$aMailbox = sqm_api_mailbox_select($imapConnection, $iAccount, $mailbox,array('setindex' => $what, 'offset' => $startMessage),array());


/**
 Start code to set the columns to fetch in case of hitting the next/prev link
 The reason for this is the fact that the cache can be invalidated which means that the headers
 to fetch aren't there anymore. Before they got calculated when the messagelist was shown.

 Todo, better central handling of setting the mailbox options so we do not need to do the stuff below
*/

/**
 * Replace From => To  in case it concerns a draft or sent folder
 */
$aColumns = array();
if (($mailbox == $sent_folder || $mailbox == $draft_folder) &&
    !in_array(SQM_COL_TO,$index_order)) {
    $aNewOrder = array(); // nice var name ;)
    foreach($index_order as $iCol) {
        if ($iCol == SQM_COL_FROM) {
            $iCol = SQM_COL_TO;
        }
        $aColumns[$iCol] = array();
   }
} else {
   foreach ($index_order as $iCol) {
       $aColumns[$iCol] = array();
   }
}

$aProps = array(
    'columns' => $aColumns, // columns bound settings
    'config'  => array(
                        'highlight_list'        => $message_highlight_list, // row highlighting rules
                        'trash_folder'          => $trash_folder,
                        'sent_folder'           => $sent_folder,
                        'draft_folder'          => $draft_folder));

calcFetchColumns($aMailbox,$aProps);

/**
 End code to set the columns to fetch in case of hitting the next/prev link
*/



/**
 * Check if cache is still valid, $what contains the key
 * which gives us acces to the array with uid's. At this moment
 * 0 is used for a normal message list and search uses 1 as key. This can be
 * changed / extended in the future.
 * If on a select of a mailbox we detect that the cache should be invalidated due to
 * the delete of messages or due to new messages we empty the list with uid's and
 * that's what we detect below.
 */
if (!is_array($aMailbox['UIDSET'][$what])) {
    fetchMessageHeaders($imapConnection, $aMailbox);
}

$iSetIndex = $aMailbox['SETINDEX'];
$aMailbox['CURRENT_MSG'][$iSetIndex] = $passed_id;

/**
 * Update the seen state
 * and ignore in_array('\\seen',$aMailbox['PERMANENTFLAGS'],true)
 */
if (isset($aMailbox['MSG_HEADERS'][$passed_id]['FLAGS'])) {
    $aMailbox['MSG_HEADERS'][$passed_id]['FLAGS']['\\seen'] = true;
}

/**
 * Process Delete from delete-move-next
 * but only if delete_id was set
 */
if ( sqgetGlobalVar('delete_id', $delete_id, SQ_GET) ) {
    handleMessageListForm($imapConnection,$aMailbox,$sButton='setDeleted', array($delete_id));
}

/**
 * $message contains all information about the message
 * including header and body
 */

if (isset($aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT'])) {
    $message = $aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT'];
    $FirstTimeSee = !$message->is_seen;
} else {
    $message = sqimap_get_message($imapConnection, $passed_id, $mailbox);
    $FirstTimeSee = !$message->is_seen;
}

/**
 * update message seen status and put in cache
 */
$message->is_seen = true;
$aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT'] = $message;

if (isset($passed_ent_id) && $passed_ent_id) {
    $message = $message->getEntity($passed_ent_id);
    if ($message->type0 != 'message'  && $message->type1 != 'rfc822') {
        $message = $message->parent;
    }
    $read = sqimap_run_command ($imapConnection, "FETCH $passed_id BODY[$passed_ent_id.HEADER]", true, $response, $msg, TRUE);
    $rfc822_header = new Rfc822Header();
    $rfc822_header->parseHeader($read);
    $message->rfc822_header = $rfc822_header;
} else if ($message->type0 == 'message'  && $message->type1 == 'rfc822' && isset($message->entities[0])) {
    $read = sqimap_run_command ($imapConnection, "FETCH $passed_id BODY[1.HEADER]", true, $response, $msg, TRUE);
    $rfc822_header = new Rfc822Header();
    $rfc822_header->parseHeader($read);
    $message->rfc822_header = $rfc822_header;
} else {
    $passed_ent_id = 0;
}
$header = $message->header;


/****************************************/
/* Block for handling incoming url vars */
/****************************************/

if (isset($sendreceipt)) {
   if ( !$message->is_mdnsent ) {
      $supportMDN = ServerMDNSupport($aMailbox["PERMANENTFLAGS"]);
      if ( SendMDN( $mailbox, $passed_id, $message, $imapConnection ) > 0 && $supportMDN ) {
         ToggleMDNflag( true, $imapConnection, $mailbox, $passed_id);
         $message->is_mdnsent = true;
         $aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT'] = $message;
      }
   }
}
/***********************************************/
/* End of block for handling incoming url vars */
/***********************************************/

$messagebody = '';
do_hook('read_body_top', $null);
if ($show_html_default == 1) {
    $ent_ar = $message->findDisplayEntity(array());
} else {
    $ent_ar = $message->findDisplayEntity(array(), array('text/plain'));
}
$cnt = count($ent_ar);
for ($i = 0; $i < $cnt; $i++) {
   $messagebody .= formatBody($imapConnection, $message, $color, $wrap_at, $ent_ar[$i], $passed_id, $mailbox);
   if ($i != $cnt-1) {
       $messagebody .= '<hr />';
   }
}

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

displayPageHeader($color, $mailbox,'','');
formatMenuBar($aMailbox, $passed_id, $passed_ent_id, $message,false);
formatEnvheader($aMailbox, $passed_id, $passed_ent_id, $message, $color, $FirstTimeSee);

$oTemplate->assign('message_body', $messagebody);
$oTemplate->display('read_message_body.tpl');

formatAttachments($message,$ent_ar,$mailbox, $passed_id);

/* show attached images inline -- if pref'fed so */
if ($attachment_common_show_images && is_array($attachment_common_show_images_list)) {
    $images = array();
    foreach ($attachment_common_show_images_list as $img) {
        $imgurl = SM_PATH . 'src/download.php' .
                '?' .
                'passed_id='     . urlencode($img['passed_id']) .
                '&amp;mailbox='       . urlencode($mailbox) .
                '&amp;ent_id=' . urlencode($img['ent_id']) .
                '&amp;absolute_dl=true';
        $a = array();
        $a['Name'] = $img['name'];
        $a['DisplayURL'] = $imgurl;
        $a['DownloadURL'] = $img['download_href'];
        $images[] = $a;
    }

    $oTemplate->assign('images', $images);
    $oTemplate->display('read_display_images_inline.tpl');
}

formatMenuBar($aMailbox, $passed_id, $passed_ent_id, $message, false, FALSE);

do_hook('read_body_bottom', $null);
sqimap_logout($imapConnection);
$oTemplate->display('footer.tpl');
?>