Fix error when using back button after sending an email (#1490009)

Aleksander Machniak

2015-07-31 4b72a1f49843aa64cdf90301ae71035c3e6cf30a

 program/steps/mail/sendmail.inc

@@ -1,6 +1,6 @@
<?php

/*
/**
 +-----------------------------------------------------------------------+
 | program/steps/mail/sendmail.inc                                       |
 |                                                                       |
@@ -640,24 +640,24 @@
            $OUTPUT->send('iframe');
        }
    }

    // delete previous saved draft
    if ($saved && ($old_id = rcube_utils::get_input_value('_draft_saveid', rcube_utils::INPUT_POST))) {
        $deleted = $RCMAIL->storage->delete_message($old_id, $drafts_mbox);

        // raise error if deletion of old draft failed
        if (!$deleted) {
            rcube::raise_error(array('code' => 800, 'type' => 'imap',
                'file' => __FILE__, 'line' => __LINE__,
                'message' => "Could not delete message from $drafts_mbox"), true, false);
        }
    }
}
// remove temp file
else if ($mailbody_file) {
    unlink($mailbody_file);
}

// delete previous saved draft
$old_id = rcube_utils::get_input_value('_draft_saveid', rcube_utils::INPUT_POST);
if ($old_id && ($sent || $saved)) {
    $deleted = $RCMAIL->storage->delete_message($old_id, $drafts_mbox);

    // raise error if deletion of old draft failed
    if (!$deleted) {
        rcube::raise_error(array('code' => 800, 'type' => 'imap',
            'file' => __FILE__, 'line' => __LINE__,
            'message' => "Could not delete message from $drafts_mbox"), true, false);
    }
}

if ($savedraft) {
    // remember new draft-uid ($saved could be an UID or true/false here)
@@ -958,3 +958,19 @@

    return false;
}

/**
 * clear message composing settings
 */
function rcmail_compose_cleanup($id)
{
    if (!isset($_SESSION['compose_data_'.$id])) {
        return;
    }

    $rcmail = rcmail::get_instance();
    $rcmail->plugins->exec_hook('attachments_cleanup', array('group' => $id));
    $rcmail->session->remove('compose_data_'.$id);

    $_SESSION['last_compose_session'] = $id;
}