307 lines
10 KiB
PHP
307 lines
10 KiB
PHP
<?php
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/*
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------------------------------------------------------------------------------------
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IT IS NOT NECESSARY TO MODIFY THIS SCRIPT TO USE EASY SAVE 3 CLOUD
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------------------------------------------------------------------------------------
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*/
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$tableName = "es3cloud"; // The name of the table used to store file names.
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$filenameField = "filename"; // The name of the field where we save our file name.
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$fileDataField = "data"; // The name of the field containing the data relating to.
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$userField = "user"; // The name of the field containing the name of the user this file relates to, if any.
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$lastUpdatedField = "lastUpdated"; // The name of the field containing the last updated timestamp.
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// Handles installation of the database tables and variables script.
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if(!file_exists("ES3Variables.php"))
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{
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if(!isset($_POST["dbHost"]))
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PreInstall();
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else
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Install($_POST["dbHost"], $_POST["dbUser"], $_POST["dbPassword"], $_POST["dbName"], $tableName, $filenameField, $fileDataField, $userField, $lastUpdatedField);
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exit();
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}
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include_once "ES3Variables.php";
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// Check connection to database.
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try
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{
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$db = new PDO("mysql:host=$db_host;dbname=$db_name", $db_user, $db_password, array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION));
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}
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catch(PDOException $e)
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{
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Error("Could not connect to database.", $e->getMessage(), 501);
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}
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if(!isset($_POST["apiKey"]))
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// Throw this message as an error so that if this is encountered via ES3Cloud it is put into an error state.
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Error("ES3Cloud is functioning correctly.", "ES3Cloud is functioning correctly.", 403);
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if($_POST["apiKey"] != $api_key)
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Error("Incorrect API Key", "Incorrect API Key", 403);
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// ----- GET FILE -----
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if(isset($_POST["getFile"]))
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{
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$stmt = $db->prepare("SELECT $fileDataField FROM $tableName WHERE $filenameField = :filename AND $userField = :user AND $lastUpdatedField > :timestamp LIMIT 1");
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$stmt->bindParam(":filename", $_POST["getFile"]);
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$postUser = GetPOSTUser();
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$stmt->bindParam(":user", $postUser);
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$postTimestamp = GetPOSTTimestamp();
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$stmt->bindParam(":timestamp", $postTimestamp);
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$stmt->execute();
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if($stmt->rowCount() > 0)
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{
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$data = $stmt->fetchColumn();
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// Manually set the content length so WWW.progress works.
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header($_SERVER["SERVER_PROTOCOL"] . " 200 OK");
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header("Cache-Control: public");
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header("Content-Type: application/octet-stream");
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header("Content-Transfer-Encoding: Binary");
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header("Content-Length:".strlen($data));
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echo $data;
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}
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}
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// ----- PUT FILE -----
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else if(isset($_POST["putFile"]))
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{
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// Get uploaded data.
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$filePath = $_FILES["data"]["tmp_name"];
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// If file doesn't exist or it contains no data, throw an error.
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if(!file_exists($filePath))
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Error("Uploaded file does not exist.", "Uploaded file does not exist.", 400);
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// If file doesn't exist or it contains no data, throw an error.
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if(filesize($filePath) == 0)
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Error("Uploaded file is empty.", "Uploaded file is empty.", 400);
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$fp = fopen($filePath, 'rb');
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$stmt = $db->prepare("INSERT INTO $tableName ($filenameField, $fileDataField, $userField, $lastUpdatedField) VALUES (:filename, :data, :user, :timestamp) ON DUPLICATE KEY UPDATE $fileDataField = VALUES($fileDataField), $lastUpdatedField = VALUES($lastUpdatedField)");
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$stmt->bindParam(":filename", $_POST["putFile"]);
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$stmt->bindParam(":data", $fp, PDO::PARAM_LOB);
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$postUser = GetPOSTUser();
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$stmt->bindParam(":user", $postUser);
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$postTimestamp = GetPOSTTimestamp();
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$stmt->bindParam(":timestamp", $postTimestamp);
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$stmt->execute();
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}
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// ----- RENAME FILE -----
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else if(isset($_POST["renameFile"]))
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{
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$stmt = $db->prepare("UPDATE $tableName SET $filenameField = :newFilename WHERE $filenameField = :filename AND $userField = :user");
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$stmt->bindParam(":filename", $_POST["renameFile"]);
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$stmt->bindParam(":newFilename", $_POST["newFilename"]);
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$postUser = GetPOSTUser();
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$stmt->bindParam(":user", $postUser);
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$stmt->execute();
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}
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// ----- DELETE FILE -----
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else if(isset($_POST["deleteFile"]))
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{
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$stmt = $db->prepare("DELETE FROM $tableName WHERE $filenameField = :filename AND $userField = :user");
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$stmt->bindParam(":filename", $_POST["deleteFile"]);
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$postUser = GetPOSTUser();
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$stmt->bindParam(":user", $postUser);
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$stmt->execute();
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}
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// ----- GET FILENAMES WITH PATTERN -----
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else if(isset($_POST["getFilenames"]) && isset($_POST["pattern"]))
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{
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echo "Here";
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$stmt = $db->prepare("SELECT $filenameField FROM $tableName WHERE $userField = :user AND $filenameField LIKE :pattern");
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$postUser = GetPOSTUser();
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$stmt->bindParam(":user", $postUser);
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$stmt->bindParam(":pattern", $_POST["pattern"]);
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$stmt->execute();
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$rows = $stmt->fetchAll();
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foreach($rows as $row)
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echo $row[$filenameField] . ";";
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}
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// ----- GET FILENAMES -----
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else if(isset($_POST["getFilenames"]))
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{
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$stmt = $db->prepare("SELECT $filenameField FROM $tableName WHERE $userField = :user");
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$postUser = GetPOSTUser();
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$stmt->bindParam(":user", $postUser);
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$stmt->execute();
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$rows = $stmt->fetchAll();
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foreach($rows as $row)
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echo $row[$filenameField] . ";";
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}
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// ----- GET TIMESTAMP -----
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else if(isset($_POST["getTimestamp"]))
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{
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$stmt = $db->prepare("SELECT $lastUpdatedField FROM $tableName WHERE $filenameField = :filename AND $userField = :user LIMIT 1");
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$stmt->bindParam(":filename", $_POST["getTimestamp"]);
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$postUser = GetPOSTUser();
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$stmt->bindParam(":user", $postUser);
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$stmt->execute();
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if($stmt->rowCount() > 0)
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echo $stmt->fetchColumn();
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else
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Error("Could not get timestamp as file does not exist.", "Could not get timestamp as file does not exist.", 400);
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}
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else
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Error("No valid operation was specified", "No valid operation was specified", 400);
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// Close the connection to the database by nullifying the variable.
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$db = null;
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function GetPOSTUser()
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{
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return isset($_POST["user"]) ? $_POST["user"] : "";
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}
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function GetPOSTTimestamp()
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{
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return isset($_POST["timestamp"]) ? $_POST["timestamp"] : 0;
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}
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function Error($headerMsg, $msg, $code)
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{
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header($headerMsg, true, $code);
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print_r($msg);
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if(isset($GLOBALS['db']))
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$GLOBALS['db'] = null;
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exit();
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}
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// ------- INSTALL METHODS -------
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function PreInstall()
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{
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echo ' <div style="font-family:Arial, Helvetica, sans-serif">
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<h1>ES3 Cloud Installation</h1>
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<p>This will install the ES3 Cloud tables on your MySQL database, and add the required <em>ES3Variables.php</em> file to your server.</p>
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<p><strong>Please enter your database details below:</strong></p>
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<p>
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<form method="post">
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Database Host:<br>
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<input type="text" name="dbHost">
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<br>
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<br>
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Database User:<br>
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<input type="text" name="dbUser">
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<br>
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<br>
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Database Password:<br>
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<input type="password" name="dbPassword">
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<br>
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<br>
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Database Name:<br>
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<input type="text" name="dbName">
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<br>
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<br>
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<button type="submit" style="font-size:14pt; font-weight:bold;">Install ES3Cloud</button>
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</form>
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</p>
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</div>';
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}
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function Install($dbHost, $dbUser, $dbPassword, $dbName, $tableName, $filenameField, $fileDataField, $userField, $lastUpdatedField)
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{
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try
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{
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$db = new PDO("mysql:host=$dbHost;dbname=$dbName", $dbUser, $dbPassword, array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, PDO::ATTR_TIMEOUT => 5));
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$tableExists = $db->query("SELECT * FROM information_schema.tables WHERE table_schema = '$dbName' AND table_name = '$tableName' LIMIT 1;");
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if($tableExists->rowCount() == 0)
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{
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// Create the table if it doesn't already exist.
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try
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{
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$createTableQuery =
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"CREATE TABLE IF NOT EXISTS `$tableName` (
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`$filenameField` varchar(200) NOT NULL,
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`$fileDataField` longblob NOT NULL,
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`$userField` varchar(64) NOT NULL,
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`$lastUpdatedField` int(11) unsigned NOT NULL DEFAULT '0',
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PRIMARY KEY (`$filenameField`,`$userField`)
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) ENGINE=InnoDB COLLATE=utf8_unicode_ci CHARSET=utf8;";
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$db->query($createTableQuery);
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}
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catch (PDOException $e)
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{
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echo " <p>Could not create tables on database. Database threw error:</p><p>".$e->getMessage()."</p>
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<p>To manually install the MySQL tables, please run the following SQL code on your database:</p>
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<pre>$createTableQuery</pre>";
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exit();
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}
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}
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try
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{
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$apiKey = substr(md5(microtime()),rand(0,26),12);
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$phpScript =
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"<?php
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\$api_key = '$apiKey'; // The API key you need to specify to use when accessing this API.
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\$db_host = '$dbHost'; // MySQL Host Name.
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\$db_user = '$dbUser'; // MySQL User Name.
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\$db_password = '$dbPassword'; // MySQL Password.
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\$db_name = '$dbName'; // MySQL Database Name.
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?>";
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// Check that path is writable or file_put_contents is supported.
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if(!function_exists("file_put_contents"))
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{
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ManuallyInstall($phpScript);
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exit();
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}
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else
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{
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file_put_contents("ES3Variables.php", $phpScript);
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}
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}
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catch(Exception $e)
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{
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ManuallyInstall($phpScript);
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exit();
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}
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if(!file_exists("ES3Variables.php"))
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{
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ManuallyInstall($phpScript);
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exit();
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}
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echo
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"
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<div style='font-family:Arial, Helvetica, sans-serif'>
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<h1>Successfully installed ES3Cloud</h1>
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<p><strong>IMPORTANT:</strong><br>Please take note of your API key below. You will need to use it whenever using the API.</p>
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<p>Your API key can also be found in the <em>ES3Variables.php</em> file which has just been installed.</p>
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<p style='font-size:16pt'><strong>API Key:</strong> $apiKey</p>
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</div>
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";
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}
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catch(PDOException $e)
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{
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echo "<p><b>Database could not be accessed with these details</b>. The database returned the following error:</p><p>" . $e->getMessage() . "</p>";
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PreInstall();
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exit();
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}
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}
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function ManuallyInstall($phpScript)
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{
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echo " <p>Couldn't create PHP file on your server. This could be because file_put_contents is not supported on your server, or you do not have permission to write files to this folder on your server.</p>
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<p>To manually install the PHP file, please create a file named <em>ES3Variables.php</em> in the same directory as your ES3.php file with the following contents:</p>
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<pre>$phpScript</pre>
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<p>After creating this file, installation will be complete.</p>";
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}
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?>
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