Gazelle/sections/staffpm/get_post.php

<?php
// todo: Make this use the cache version of the thread, save the db query

/*********************************************************************\
//--------------Get Post--------------------------------------------//

This gets the raw BBCode of a post. It's used for editing and
quoting posts.

It gets called if $_GET['action'] == 'get_post'. It requires
$_GET['post'], which is the ID of the post.

\*********************************************************************/

// Quick SQL injection check
if (!$_GET['post'] || !is_number($_GET['post'])) {
    error(0);
}

// Variables for database input
$PostID = $_GET['post'];

// Message is selected providing the user quoting is the guy who opened the PM or has the right level
$DB->query("
  SELECT m.Message, c.Level, c.UserID
  FROM staff_pm_messages AS m
    JOIN staff_pm_conversations AS c ON m.ConvID = c.ID
  WHERE m.ID = '$PostID'");
list($Message, $Level, $UserID) = $DB->next_record(MYSQLI_NUM);

if (($LoggedUser['ID'] === $UserID) || ($IsFLS && $LoggedUser['Class'] >= $Level)) {
    // This gets sent to the browser, which echoes it wherever
    echo trim($Message);
} else {
    error(403);
}