Reddit Flair Bot

<?php
    //Definitions
    //Your Sub-reddit! Nothing more than what comes after the /r/ (lower case please)
    $sub_reddit = '';

    //A moderator account must be the one to set users flair, info must be plaintext
    $mod_account = '';
    $mod_password = '';
    //for now: go to http://reddit . com/api/me . json while logged into the defined account, and copy the listed modhash
    $mod_hash = '';

    //This is the temporary file where the login cookie will be stored to process the form, it must be created before use
    $cookiejar = 'cookies.txt';

    //  Define the Encryption key for the PM
    $key = '';

    //Sprite Image as listed on the sub-reddit example: sprite-icons
    $sprite_image = '';
    //The URL of the sprite for the CSS
    $sprite_url = '';
    //Define the height of your sprite in pixels
    $sprite_height = ;
    //Define if the sprite should be :before or :after in the CSS
    $sprite_position = 'before';

    //Define the subject of the sent PM
    $subject = 'Flair Confirmation -- Automatic Message do not Respond';

    //Enter the names of your Flair here as an array, this is text that will be displayed on the selector
    $flair = array (
    );

    function encode ( $string, $key ) {
        $key = sha1 ( $key );
        $strLen = strlen ( $string );
        $keyLen = strlen ( $key );

        for ( $i = 0; $i < $strLen; $i++ ) {
            $ordStr = ord ( substr ( $string, $i, 1) );
            if ( $j == $keyLen ) $j = 0;
            $ordKey = ord ( substr ( $key, $j, 1) );
            $j++;
            $hash .= strrev ( base_convert ( dechex ( $ordStr + $ordKey ), 16, 36) );
        }

        return $hash;
    }

    function decode ( $string, $key ) {
        $key = sha1 ( $key );
        $strLen = strlen ( $string );
        $keyLen = strlen ( $key );

        for ( $i = 0; $i < $strLen; $i+=2 ) {
            $ordStr = hexdec ( base_convert ( strrev ( substr ( $string, $i, 2 ) ), 36, 16 ) );
            if ( $j == $keyLen ) $j = 0;
            $ordKey = ord ( substr ( $key, $j, 1 ) );
            $j++;
            $hash .= chr ( $ordStr - $ordKey );
        }

        return $hash;
    }

    //Login as the moderator account
    $ch = curl_init();

    //Define the data to send as reddit's login
    $post_data = 'user=' . $mod_account . '&passwd=' . $mod_password . '&api_type=json';

    $options = array (
        CURLOPT_URL     =>  'http://www.reddit.com/api/login/',
        CURLOPT_RETURNTRANSFER      =>  1,
        CURLOPT_POST        =>  1,
        CURLOPT_POSTFIELDS      =>  $post_data,
        CURLOPT_COOKIEJAR       =>  $cookiejar
    );

    curl_setopt_array ($ch, $options);

    $output = curl_exec($ch);
    curl_close($ch);

    if (!empty($_POST)) {
        //Create the key= to encode
        $key2encode = 'r=' . $sub_reddit . '&name=' . $_POST['name'];
        if (isset($_POST['text'])) $key2encode  .= '&text=' . $_POST['text'];
        if (isset($_POST['css_class'])) $key2encode  .= '&css_class=' . $_POST['css_class'];

        $key2encode = encode($key2encode, $key);

        //The Default Message example: http://reddithon . com/flair . php
        $message = 'http://'  .  $_SERVER['SERVER_NAME'] . $_SERVER['PHP_SELF'] . '?key='  .  $key2encode;

        $ch = curl_init();

        $post_data = 'to='  .  $_POST['name']  .  '&subject='  .  $subject  .  '&text='  .  $message  .  '&uh='  .  $mod_hash;

        $options = array (
            CURLOPT_URL     =>  'http://www.reddit.com/api/compose',
            CURLOPT_RETURNTRANSFER      =>  1,
            CURLOPT_POST        =>  1,
            CURLOPT_POSTFIELDS      =>  $post_data,
            CURLOPT_COOKIEFILE      =>  $cookiejar
        );

        curl_setopt_array ($ch, $options);

        $comment = curl_exec($ch);
        curl_close($ch);

        ?>
            <!-- Redirect to your sub-reddit -->
            <script type='text/javascript'>
                window.location = 'http://reddit.com/r/<?php echo $sub_reddit; ?>'
            </script>
        <?php
    }

    if (isset($_GET['key'])) {
        //Decode the sent key
        $post_data = decode($_GET['key'], $key ) . '&uh=' . $mod_hash;

        $ch = curl_init();

        $options = array (
            CURLOPT_URL     =>  'http://www.reddit.com/api/flair',
            CURLOPT_RETURNTRANSFER      =>  1,
            CURLOPT_POST        =>  1,
            CURLOPT_POSTFIELDS      =>  $post_data,
            CURLOPT_COOKIEFILE      =>  $cookiejar
        );

        curl_setopt_array ($ch, $options);

        $output = curl_exec($ch);
        curl_close($ch);

        ?>
            <!-- Redirect to your sub-reddit -->
            <script type='text/javascript'>
                window.location = 'http://reddit.com/r/<?php echo $sub_reddit; ?>'
            </script>
        <?php
    }
?>
<head>
    <title>Your Sub-Reddit's Flair Bot!</title>
    <style>
        .sprite-icon {
            /* MUST SET BACKGROUND IMAGE */
            background-image: url(<?php echo $sprite_url ?>);
            width: 28px;
            height: 28px;
            display: inline-block;
            margin: 1px;
            margin-left: 0px;
        }

        #flair {
            width: 225px;
            margin: 0;
            float: left;
        }
    </style>
</head>
<body>
<?php $minimum_pieces_of_flair = count($flair); ?>
    <!-- Created by m4rx -->
    <div id='container'>
        <div id='reddit-select'>
            <form action='' method='POST'>

                <div class='flair-text'>
                    <label>Flair Text:</label>
                    <input type='text' size='20' name='text'/>
                </div>

                <div id='username' class='reddit-account'>
                    <label>Reddit Account Name:</label>
                    <input style='' size='20' type='text' name='name'/>*Case Sensitive
                </div>

                <div class='sprite-select'>
                    <h3>Select Flair</h3>
                    <ul id='sprite-list'>
                        <?php
                            $temp = 0;
                            $height = 0;

                            if (isset($_GET['css'])) {
                                    echo ' . flair:before { background: url(%%'  .  $sprite_image  .  '%%) no-repeat scroll -9999px -9999px transparent; display: inline-block; height: ' . $sprite_height . 'px; width: ' . $sprite_height . 'px; margin-right: 3px; vertical-align: middle;}<br />';
                            }

                            while ( $temp < $minimum_pieces_of_flair ) {
                                if ( isset ( $_GET['css'] ) ) {
                                    echo '.flair-'  .  strtolower ( str_replace ( ' ', '-', $flair[$temp] ) )  .  ':before {content: ""; background-position: 0 ' . $height . 'px;}<br />';
                                }
                                else {
                                ?>
                                    <li id='flair'>
                                        <input name='css_class' type='radio' id='<?php echo $flair[$temp] ?>' style='display: inline; float: left; margin-top: 7px;' value='<?php echo strtolower ( str_replace ( ' ', '-', $flair[$temp] ) ); ?>' />
                                        <label for='<?php echo $flair[$temp] ?>'>
                                        <div class='sprite-icon' style='margin-right: 2px; float: left; background-position: 0px <?php echo $height; ?>px;'></div>
                                        <div class='flair-name'><?php echo $flair[$temp]; ?></div>
                                        </label>
                                    </li>
                                <?php
                                }
                                $height = ($height - $sprite_height);
                                $temp = ($temp + 1);
                            }
                        ?>
                    </ul>
                </div>
                <div class='save' style='float:right; padding: 10px;'>
                    <input type = 'submit' value = 'Save'/>
                </div>
            </form>
        </div>
    </div><!-- #container -->
</body>