contentdispenser/admin/api.php

<?php
session_start();
$action = $_POST['action'];
$config = json_decode(file_get_contents("../data/config.json"), true);

if ($_POST["password"] == $config["admin_pwd"] && $action == "verify"){
    echo "OK";
    $_SESSION["password"] = $_POST["password"];
}

if (!empty($action) && $_SESSION["password"] == $config["admin_pwd"]){
    $mysqli = new mysqli($config["mysqlhost"], $config["mysqluser"], $config["mysqlpass"], $config["mysqldb"]);

    if ($action == "hassession"){
        echo "YES";
    }

    if ($action == "get"){
        $stmt1 = $mysqli->prepare("SELECT `LinkID`, `ContentID`, `Nickname` FROM Links");
        $stmt1->bind_result($linkid, $contentid, $nickname);
        $stmt1->execute();
        $stmt1->store_result();
        $out = "<table><tbody><tr><th>ID</th><th>Content ID</th><th>Nickname</th><th>Button</th></tr>";
        while ($stmt1->fetch()) {
            $id = htmlspecialchars($linkid);
            $nickname = htmlspecialchars($nickname);
            $contentid = htmlspecialchars($contentid);
            $out = $out . "<tr><td>$id</td><td>$contentid</td><td>$nickname</td><td><button onclick=\"delthis('$id')\">Delete</button></td></tr>";
        }
        $out = $out . "<tr><td><input id=\"addid\" placeholder=\"ID\"></td><td><input id=\"addcontentid\" placeholder=\"Content ID\"></td><td><input id=\"addnickname\" placeholder=\"Nickname\"></td><td><button id=\"linkadder\" onclick=\"justadd()\">Add</button></td></tr>";
        $out = $out . "</tbody></table>";
        echo $out;
    }

    if ($action == "delete" && !empty($_POST["id"])){
        $stmt2 = $mysqli->prepare("DELETE FROM Links WHERE `LinkID` = ?");
        $stmt2->bind_param('s', $_POST["id"]);
        $stmt2->execute();
        $stmt2->store_result();
    }
    
    if ($action == "set" && !empty($_POST["id"]) && !empty($_POST["contentid"]) && !empty($_POST["nickname"])){
        $stmt3 = $mysqli->prepare("INSERT INTO Links (`LinkID`, `ContentID`, `Nickname`) VALUES (?, ?, ?);");
        $stmt3->bind_param('sss', $_POST["id"], $_POST["contentid"], $_POST["nickname"]);
        $stmt3->execute();
        $stmt3->store_result();
    }

    if ($action == "getcontent"){
        $stmt4 = $mysqli->prepare("SELECT `ContentID`, `Type`, `Content` FROM Content");
        $stmt4->bind_result ($contentid, $type, $content);
        $stmt4->execute();
        $stmt4->store_result();
        $out = "<table><tbody><tr><th>Content ID</th><th>Content</th><th>MIME type</th><th>Button</th></tr>";
        while ($stmt4->fetch()) {
            $id = htmlspecialchars($contentid);
            if(empty($type)){
                $content = htmlspecialchars($content);
                $type = "Normal text";
            }
            else{
                $content = "Binary data";
            }
            $out = $out . "<tr><td>$id</td><td>$content</td><td>$type</td><td><button onclick=\"delcthis('$id')\">Delete</button></td></tr>";
        }
        $out = $out . "<tr><td><input id=\"addidc\" placeholder=\"Content ID\"></td><td><textarea id=\"addcontentc\" placeholder=\"Content\"></textarea></td><td><input id=\"addtypec\" placeholder=\"MIME Type(when set the data must be Base64)\"></td></td><td><button id=\"contentadder\" onclick=\"justaddc()\">Add</button></td></tr>";
        $out = $out . "</tbody></table>";
        echo $out;
    }

    if ($action == "deletecontent" && !empty($_POST["id"])){
        $stmt5 = $mysqli->prepare("DELETE FROM Content WHERE `ContentID` = ?");
        $stmt5->bind_param('s', $_POST["id"]);
        $stmt5->execute();
        $stmt5->store_result();
    }
    
    if ($action == "setcontent" && !empty($_POST["id"]) && !empty($_POST["content"])){
        $stmt6 = $mysqli->prepare("INSERT INTO Content (`ContentID`, `Type`,  `Content`) VALUES (?, ?, ?);");
        if (!empty($_POST["type"])){
            $decoded = base64_decode($_POST["content"]);
            $stmt6->bind_param('sss', $_POST["id"], $_POST["type"], $decoded);
        }
        else{
            $stmt6->bind_param('sss', $_POST["id"], "", $_POST["content"]);
        }
        $stmt6->execute();
        $stmt6->store_result();
    }

    if ($action == "getlog"){
        $idcko = $_POST["id"];
        if (empty($idcko)||$idcko == "*"){
            $query = "SELECT `ID`, `Action`, `LinkID`, `ContentID`, `Datetime`, `Timestamp`, `Nickname`, `IP` FROM Logs";
            $stmt7 = $mysqli->prepare($query);
        }
        else{
            $query = "SELECT `ID`, `Action`, `LinkID`, `ContentID`, `Datetime`, `Timestamp`, `Nickname`, `IP` FROM Logs WHERE `LinkID` = ?";
            $stmt7 = $mysqli->prepare($query);
            $stmt7->bind_param("s", $idcko);
        }
        $stmt7->bind_result ($rowidx, $actionx, $linkidx, $contentidx, $datetimex, $timestampx, $nicknamex, $ipx);
        $stmt7->execute();
        $stmt7->store_result();
        $out = "<table><tbody><tr><th>Action</th><th>Date and Time</th><th>Nickname</th><th>Link</th><th>Content</th><th>IP</th><th>Button</th></tr>";
        while ($stmt7->fetch()) {
            $action = htmlspecialchars($actionx);
            $link = htmlspecialchars($linkidx);
            $content = htmlspecialchars($contentidx);
            $nickname = htmlspecialchars($nicknamex);
            $ip = htmlspecialchars($ipx);
            $rowid = htmlspecialchars($rowidx);
            $datetime = htmlspecialchars($datetimex);
            $out = $out . "<tr><td>$action</td><td>$datetime</td><td>$nickname</td><td>$link</td><td>$content</td><td>$ip</td><td><button onclick=\"dellog('$rowid')\">Delete</button></td></tr>";
        }
        $out = $out . "</tbody></table>";
        echo $out;
    }
    if ($action == "deletelog" && !empty($_POST["id"])){
        $stmt5 = $mysqli->prepare("DELETE FROM Logs WHERE `ID` = ?");
        $stmt5->bind_param('i', $_POST["id"]);
        $stmt5->execute();
        $stmt5->store_result();
    }

}
else{
    echo "ERROR";
}
?>