add apiKey management

2022-11-19 12:57:49 +01:00
parent b1de004603
commit 7a531a1d4c
10 changed files with 466 additions and 236 deletions
--- a/homepage/participo/lib/participoLib/dbConnector.php
+++ b/homepage/participo/lib/participoLib/dbConnector.php
@@ -0,0 +1,123 @@
+<?php
+
+/**
+ * interface for connecting and communicating with a database
+ */
+class dbConnector
+{
+	private static $db = null;
+
+	// connect to the database
+	public static function connect($hostname, $dbName, $user, $password)
+	{
+		return self::setDbConnection(self::connectToPdo($hostname, $dbName, $user, $password));
+	}
+
+	public static function getDbConnection()
+	{
+		return self::$db;
+	}
+
+	/// perform a pdo-query
+	///
+	/// @param $aQueryString
+	/// @param $aBindArray e.g. array(
+	///  ':userId'     => array('value'=>$anUserId,      'data_type'=>PDO::PARAM_INT),
+	///  ':attributeId'=> array('value'=>$anAttributeId, 'data_type'=>PDO::PARAM_INT) )
+	/// @param $someOption
+	public static function query($aQueryString, $aBindArray = [], $someOptions = [])
+	{
+		// var_dump($aQueryString, $aBindArray);
+		// Standardbelegungen
+		if (empty($someOptions['dbCharset'])) {
+			$someOptions['dbCharset'] = 'ISO-8859-1';
+		}
+		if (empty($someOptions['outCharset'])) {
+			$someOptions['outCharset'] = 'UTF-8';
+		}
+		if (empty($someOptions['dontFetch'])) {
+			$someOptions['dontFetch'] = false;
+		}
+
+		/// @toDo: Bisher wird nur die Rückgabe konvertiert. Eigentlich muss
+		///  doch auch die Eingabe konvertiert werden. Aber das jetzt
+		///  umzustellen wird schwer! Die User im Wettkampfplaner sind ja z.B.
+		///  als UTF8 in latin1(?) gespeichert.
+		/// @toDo: Die Standardwerte sollten vielleicht aus einer config
+		///  kommen, nicht hardcoded
+		try {
+			$pdoStatement = self::$db->prepare($aQueryString);
+			foreach ($aBindArray as $bindName => $bind) {
+				if ($bind['data_type'] == PDO::PARAM_STR) {
+					$bind['value'] = iconv(
+						$someOptions['outCharset'],
+						$someOptions['dbCharset'],
+						$bind['value']
+					);
+				}
+				$pdoStatement->bindValue(
+					$bindName,
+					$bind['value'],
+					(isset($bind['data_type']) ? $bind['data_type'] : PDO::PARAM_STR)
+				);
+			}
+			$pdoResult = $pdoStatement->execute();
+			if (!$pdoResult) {
+				echo("Error during dbQuery!\n");
+				echo("DB-Error:\n");
+				var_dump(self::$db->errorInfo());
+			}
+			if ($someOptions['dontFetch']) {
+				$ret = null;
+			} else {
+				$ret = $pdoStatement->fetchAll(PDO::FETCH_ASSOC);
+			}
+		} catch(PDOException $db_error) {
+			print 'Error!: ' . $db_error->getMessage() . '<br/>';
+			return null;
+		}
+
+		// Zeichensatzkonvertierung
+		if (is_array($ret)) {
+			foreach ($ret as &$entry) {
+				array_walk(
+					$entry,
+					function (&$value, $key, $someOptions) {
+						$value = iconv($someOptions['dbCharset'], $someOptions['outCharset'], $value);
+					},
+					$someOptions
+				);
+			}
+		}
+		return $ret;
+	}
+
+	// get a Connection to the database
+	private static function connectToPdo($hostname, $dbName, $user, $password)
+	{
+		// var_dump($hostname, $dbName, $user, $password);
+		$dbConnection = null;
+		try {
+			$dbConnection = new PDO(
+				'mysql:host=' . $hostname . ';dbname=' . $dbName,
+				$user,
+				$password
+			);
+		} catch(PDOException $dbError) {
+			echo('Error whilst getting a dbConnection!: ' . $dbError->getMessage());
+		}
+		return $dbConnection;
+	}
+
+	// set the dbConnection (just setting, no establishing)
+	private static function setDbConnection($dbConnection)
+	{
+		$success = false;
+		if ($dbConnection instanceof PDO) {
+			self::$db = $dbConnection;
+			$success = true;
+		} else {
+			self::$db = null;
+		}
+	}
+}