Index.php

<?php
include("resources/functions/main_functions.php");
/*
BEGIN MAIN PROGRAM
BEGIN MAIN PROGRAM
BEGIN MAIN PROGRAM
*/
putenv("TZ=Australia/Sydney"); //set local time. At a later point in time, I may make an installation process for this webservice.
//------ DETERMINE THE USER
$user = $_SERVER['REMOTE_ADDR'];
//open the users file
$fh[1] = fopen("users/admin.txt", 'r');
$admin = fgets($fh[1], 4096);
fclose($fh[1]);
$enc_user = md5(sha1($user));
//Determine who the user is
if($enc_user == $admin){
    create_user($enc_user); //even though they are the admin, this process is still useful
    //determine what the admin wants to do
    if($_POST['action']){
        $action = $_POST['action'];
        if($action == "post"){
            //if the admin wants to create a new entry
            action_post();
        }
        if($action == "comment"){
            comment_entry();
        }
    }
    if($_GET['action']){
        $action = $_GET['action'];
        //if the user wants to delete their comment
        if($action == "delete"){
            $entry = $_GET['entry'];
            $comment = $_GET['comment'];
            if(file_exists("resources/entries/comments/$entry/$comment.txt")){
                unlink("resources/entries/comments/$entry/$comment.txt");
            }
            header("Location: http://vrysrs.me/index.php?entry=$entry");
        }
        if($action == "recycle"){
            //Basically move the latter mentioned entry to the recycle bin, where it can later be removed permanently
            $entry = $_GET['entry'];
            if(file_exists("resources/entries/$entry.txt")){
                rename("resources/entries/$entry.txt", "resources/entries/recycle/$entry.txt");
            }
            header("Location: http://vrysrs.me");
            //That's basically it, the rest will be handled else-where
            //That works, now to write the bit which allows the entry to be restored
        }
        if($action == "restore"){
            $entry = $_GET['entry'];
            if(file_exists("resources/entries/recycle/$entry.txt")){
                rename("resources/entries/recycle/$entry.txt", "resources/entries/$entry.txt");
            }
            header("Location: http://vrysrs.me/index.php?entry=$entry");
            //Again this is very simple because that's all it needs to be
            //Actually deleting is a larger process as it needs to be completed thoroughly
        }
        if($action == "deleteentry"){
            $entry = $_GET['entry'];
            if(file_exists("resources/entries/recycle/$entry.txt")){
                //Proceed to delete entry
                /*Btw, if you're wandering, not much checking has to go on here.
                The user has already been signed on as being the admin.*/
                if(($fh[18] = fopen("resources/entries/recycle/$entry.txt", 'r')) !== false){
                    //move to the third line in the file where the image name is stored
                    for($i = 0; $i < 3; $i++){
                        //for loop because Marin would want me to
                        $image = trim(fgets($fh[18]));
                    }
                    if($image !== "none"){
                        unlink("resources/entries/images/$image");
                        //No confirmation here because 'whatcha gunna do?'
                    }
                }
                fclose($fh[18]);
                unlink("resources/entries/recycle/$entry.txt");
                if(file_exists("resources/entries/comments/$entry/count.txt")){
                    //begin deleting comments
                    $fh[19] = fopen("resources/entries/comments/$entry/count.txt", 'r');
                    $count = trim(fgets($fh[19]));
                    fclose($fh[19]);
                    unlink("resources/entries/comments/$entry/count.txt");
                    for($i = 1; $i <= $count; $i++){
                        if(file_exists("resources/entries/comments/$entry/$i.txt")){
                            unlink("resources/entries/comments/$entry/$i.txt");
                        }
                        //it's nice to be able to write code which wont generate any E_level warnings
                    }
                }
                if(file_exists("resources/entries/comments/$entry/history.txt")){
                    unlink("resources/entries/comments/$entry/history.txt");
                }
                rmdir("resources/entries/comments/$entry/");
            }
            header('location: http://vrysrs.me');
        }
        if($action == "displayimage"){
            display_image();
        }
    }
    if($_GET['entry'] && $action != "deleteentry" && $action != "displayimage"){
        $entry = $_GET['entry'];
        display_entry($entry, 1, 0);
    }elseif($action != "displayimage"){
        display_content(1);
    }
}else{
    //if not admin, aka they are a user
    //Determine if the user exists in our database
    create_user();
    //welcome, you are now a user of the the system.
    //Load a record of the users comments... even if they just joined the system, it's easier that way
    //array structure: $user_comments[<entry>][<comment number>]
    $fh[15] = fopen("users/$enc_user.txt", 'r');
    while(!feof($fh[15])){
        $line = explode("_", trim(fgets($fh[15])));
        $user_comments[$line[0]][$line[1]] = 1;
    }
    if($_POST['action']){
        $action = $_POST['action'];
        if($action == "comment"){
            comment_entry();
        }
    }
    if($_GET['action']){
        $action = $_GET['action'];
        //if the user wants to delete their comment
        if($action == "delete"){
            //Determine what the user wants to delete
            $entry = $_GET['entry'];
            $comment = $_GET['comment'];
            //Determine who the user is and what they have permission to delete
            $fh[17] = fopen("users/$enc_user.txt", 'r');
            while(!feof($fh[17])){
                $line = explode("_", trim(fgets($fh[17])));
                $user_comments[$line[0]][$line[1]] = 1;
            }
            fclose($fh[17]);
            if($user_comments[$entry][$comment] == 1){
                //if the user has permission to delete the file, delete it.
                if(file_exists("resources/entries/comments/$entry/$comment.txt")){
                    unlink("resources/entries/comments/$entry/$comment.txt");
                }
            }
        }
        if($action == "displayimage"){
            display_image();
        }
    }
    if($action != "displayimage"){
        if($_GET['entry']){
            //Display the main content
            $entry = $_GET['entry'];
            display_entry($entry, 0, $user_comments[$entry]);
        }else{
            //By default, display the homepage.
            display_content(0);
        }
    }
    //echo "Your IP is: $user <br> $enc_user";
}
$date = date('Y');
echo <<<END
<br>
<span class="footer">&copy; James Clarke $date
<br>
<br>
</span>
</div>
</body>
</html>
END;
?>