Refactor to separate the framework from the app; drop message stuff, this app is just user management. Add a json view for individual usersHEADmaster

1 files changed, 403 insertions, 0 deletions

diff --git a/apps/um/lib/Database.class.php b/apps/um/lib/Database.class.php
new file mode 100644
index 0000000..a76d891
--- /dev/null
+++ b/apps/um/lib/Database.class.php
@@ -0,0 +1,403 @@
+<?php
+require_once('Singleton.class.php');
+require_once('Hasher.class.php');
+
+class Database extends Singleton {
+	private static $me = null;
+	private $conf;
+	private $mysql;
+	private $db_prefix;
+
+	public function __construct($conf_file) {
+		$this->conf = $conf_file;
+		self::$me = $this;
+	}
+	public static function getInstance() {
+		return self::$me;
+	}
+	
+	// Low-Level SQL functions /////////////////////////////////////////////
+	
+	private function mysql() {
+		if (!isset($this->mysql)) {
+			$this->mysql_init();
+		}
+		return $this->mysql;
+	}	
+	private function mysql_init() {
+		global $db_config;
+		require($this->conf);
+		$this->mysql = mysql_connect($db_config['host'],
+		                              $db_config['user'],
+		                              $db_config['password']);
+		mysql_set_charset($db_config['charset'], $this->mysql);
+		mysql_select_db($db_config['name'], $this->mysql);
+		$this->db_prefix = $db_config['prefix'];
+		unset($db_config);
+	}
+	private function mysql_table($table_name) {
+		$mysql = $this->mysql();
+		$prefix = $this->db_prefix;
+		return $prefix.mysql_real_escape_string($table_name, $mysql);
+	}
+	private function mysql_escape($string) {
+		$mysql = $this->mysql();
+		return mysql_real_escape_string($string, $mysql);
+	}
+	private function mysql_query($query) {
+		$mysql = $this->mysql();
+		return mysql_query($query, $mysql);
+	}
+	public function mysql_error() {
+		$mysql = $this->mysql();
+		return mysql_error($mysql);
+	}
+	
+	// High-Level SQL functions ////////////////////////////////////////////
+	
+	// The 'auth' table
+	
+	public function getUID($username) {
+		$t = $this->mysql_table('auth');
+		$v = $this->mysql_escape($username);
+		$query =
+			"SELECT *        \n".
+			"FROM $t         \n".
+			"WHERE name='$v' ;";
+		$q = $this->mysql_query($query);
+		$user = mysql_fetch_array($q);
+		if (isset($user['uid'])) {
+			return (int)$user['uid'];
+		} else {
+			return false;
+		}
+	}
+	public function getUsername($uid) {
+		if (!is_int($uid)) return false;
+		$t = $this->mysql_table('auth');
+		$query =
+			"SELECT *      \n".
+			"FROM $t       \n".
+			"WHERE uid=$uid ;";
+		$q = $this->mysql_query($query);
+		$user = mysql_fetch_array($q);
+		if (isset($user['name'])) {
+			return $user['name'];
+		} else {
+			return false;
+		}
+	}
+	public function setUsername($uid, $username) {
+		if (!is_int($uid)) return false;
+		if ($this->getUID($username) !== false) {
+			return false;
+		}
+		$table = $this->mysql_table('auth');
+		$name = $this->mysql_escape($username);
+		$query =
+			"UPDATE $table    \n".
+			"SET name='$name' \n".
+			"WHERE uid=$uid   ;";
+		$q = $this->mysql_query($query);
+		return ($q?true:false);
+	}
+	public function getPasswordHash($uid) {
+		if (!is_int($uid)) return false;
+
+		$table = $this->mysql_table('auth');
+		$query =
+			"SELECT *       \n".
+			"FROM $table    \n".
+			"WHERE uid=$uid ;";
+		$q = $this->mysql_query($query);
+		$user = mysql_fetch_array($q);
+		if (isset($user['hash'])) {
+			return $user['hash'];
+		} else {
+			return false;
+		}
+	}
+	public function setPassword($uid, $password) {
+		if (!is_int($uid)) return false;
+		$table = $this->mysql_table('auth');
+		
+		$hasher = Hasher::getInstance();
+		@$hash = $hasher->hash($password);
+		$query =
+			"UPDATE $table    \n".
+			"SET hash='$hash' \n".
+			"WHERE uid=$uid   ;";
+		$q = $this->mysql_query($query);
+		return ($q?true:false);
+	}
+	public function addUser($username, $password) {
+		$user_exits = $this->getUID($username);
+		if ($user_exists) {
+			return false;
+		}
+		
+		$table = $this->mysql_table('auth');
+		$user = $this->mysql_escape($username);
+		$hasher = Hasher::getInstance();
+		@$hash = $hasher->hash($password);
+		$status = 0;
+		$query =
+			"INSERT INTO $table (   name,   hash ,  status) \n".
+			"VALUES             ('$user', '$hash', $status) ;";
+		$this->mysql_query($query);
+		$uid = $this->getUID($username);
+		return $uid;
+	}
+	public function getStatus($uid) {
+		if (!is_int($uid)) return false;
+		$table = $this->mysql_table('auth');
+		$query =
+			"SELECT *       \n".
+			"FROM $table    \n".
+			"WHERE uid=$uid ;";
+		$q = $this->mysql_query($query);
+		$user = mysql_fetch_array($q);
+		if (isset($user['status'])) {
+			return (int)$user['status'];
+		} else {
+			return false;
+		}
+	}
+	public function setStatus($uid, $status) {
+		if (!is_int($uid)) return false;
+		$table = $this->mysql_table('auth');
+		$s = $this->mysql_escape($status);
+		$query =
+			"UPDATE $table  \n".
+			"SET status=$s  \n".
+			"WHERE uid=$uid ;";
+		$q = $this->mysql_query($query);
+		return ($q?true:false);
+	}
+	public function countUsers() {
+		$table = $this->mysql_table('auth');
+		$query = "SELECT COUNT(*) FROM $table;";
+		$q = $this->mysql_query($query);
+		$row = mysql_fetch_array($q);
+		$count = $row[0];
+		return $count;
+	}
+	public function listGroups() {
+		$table = $this->mysql_table('auth');
+		$query =
+			"SELECT uid     \n".
+			"FROM $table    \n".
+			"WHERE status=3 ;";
+		$q = $this->mysql_query($query);
+		$groups = array();
+		while (($row = mysql_fetch_array($q)) !==false) {
+			$groups[] = (int)$row[0];
+		}
+		return $groups;
+	}
+	public function listGroupNames() {
+		$table = $this->mysql_table('auth');
+		$query =
+			"SELECT name    \n".
+			"FROM $table    \n".
+			"WHERE status=3 ;";
+		$q = $this->mysql_query($query);
+		$groups = array();
+		while (($row = mysql_fetch_array($q)) !==false) {
+			$groups[] = $row[0].'';
+		}
+		return $groups;
+	}
+	public function listUsers() {
+		$table = $this->mysql_table('auth');
+		$query =
+			"SELECT uid       \n".
+			"FROM $table      \n".
+			"WHERE status < 3 ;";
+		$q = $this->mysql_query($query);
+		$users = array();
+		while (($row = mysql_fetch_array($q)) !==false) {
+			$users[] = (int)$row[0];
+		}
+		return $users;
+	}
+	
+	// The 'users' table
+	
+	public function findUser($setting, $value) {
+		$t = $this->mysql_table('users');
+		$k = $this->mysql_escape($setting);
+		$v = $this->mysql_escape($value);
+		$query =
+			"SELECT *                 \n".
+			"FROM $t                  \n".
+			"WHERE     k =      '$k'  \n".
+			"AND UPPER(v)=UPPER('$v') ;";
+		$q = $this->mysql_query($query);
+		$user = mysql_fetch_array($q);
+		if (isset($user['uid'])) {
+			return $user['uid'];
+		} else {
+			return false;
+		}
+	}
+	public function getUserConf($uid, $setting) {
+		if (!is_int($uid)) return false;
+		$t = $this->mysql_table('users');
+		$k = $this->mysql_escape($setting);
+		$query =
+			"SELECT *     \n".
+			"FROM $t      \n".
+			"WHERE k='$k' \n".
+			"AND uid=$uid ;";
+		$q = $this->mysql_query($query);
+		$row = mysql_fetch_array($q);
+		if (isset($row['v'])) {
+			return $row['v'];
+		} else {
+			return false;
+		}
+	}
+	public function setUserConf($uid, $setting, $value) {
+		if (!is_int($uid)) return false;
+		$isset = ($this->getUserConf($uid, $setting) !== false);
+		$t = $this->mysql_table('users');
+		$k = $this->mysql_escape($setting);
+		$v = $this->mysql_escape($value);
+		if ($isset) {
+			$query =
+				"UPDATE $t      \n".
+				"SET   v = '$v' \n".
+				"WHERE k = '$k' \n".
+				"AND uid = $uid ;";
+		} else {
+			$query =
+				"INSERT INTO $t ( uid,   k ,   v ) \n".
+				"VALUES         ($uid, '$k', '$v') ;";
+		}
+		$q = $this->mysql_query($query);
+		return ($q?true:false);
+	}
+	public function getUsersInGroup($groupname) {
+		$table = $this->mysql_table('users');
+		$group = $this->mysql_escape($groupname);
+		$query = 
+			"SELECT uid              \n".
+			"FROM $table             \n".
+			"WHERE k='groups'        \n".
+			"AND v LIKE '%,$group,%' ;";
+		$q = $this->mysql_query($query);
+		$users = array();
+		while (($row = mysql_fetch_array($q)) !==false) {
+			$users[] = $row[0];
+		}
+		return $users;
+	}
+	
+	// The 'plugins' table
+	
+	public function getPluginConf($plugin, $key) {
+		$t = $this->mysql_table('plugins');
+		$p = $this->mysql_escape($plugin);
+		$k = $this->mysql_escape($key);
+		$query =
+			"SELECT *        \n".
+			"FROM $t         \n".
+			"WHERE k='$k'    \n".
+			"AND plugin='$p' ;";
+		$q = $this->mysql_query($query);
+		$row = mysql_fetch_array($q);
+		if (isset($row['v'])) {
+			return $row['v'];
+		} else {
+			return false;
+		}
+	}
+	public function setPluginConf($plugin, $key, $value) {
+		$isset = ($this->getPluginConf($plugin, $key) !== false);
+		$t = $this->mysql_table('plugins');
+		$p = $this->mysql_escape($plugin);
+		$k = $this->mysql_escape($key);
+		$v = $this->mysql_escape($value);
+		if ($isset) {
+			$query =
+				"UPDATE $t         \n".
+				"SET   v = '$v'    \n".
+				"WHERE k = '$k'    \n".
+				"AND plugin = '$p' ;";
+		} else {
+			$query =
+				"INSERT INTO $t (plugin,   k ,   v ) \n".
+				"VALUES         ('$p'  , '$k', '$v') ;";
+		}
+		$q = $this->mysql_query($query);
+		return ($q?true:false);		
+	}
+	
+	// The 'conf' table
+	
+	public function getSysConf($key) {
+		$t = $this->mysql_table('conf');
+		$k = $this->mysql_escape($key);
+		$query =
+			"SELECT *     \n".
+			"FROM $t      \n".
+			"WHERE k='$k' ;";
+		$q = $this->mysql_query($query);
+		$row = mysql_fetch_array($q);
+		if (isset($row['v'])) {
+			return $row['v'];
+		} else {
+			return false;
+		}
+	}
+	public function setSysConf($key, $value) {
+		$isset = ($this->getSysConf($key) !== false);
+		$t = $this->mysql_table('conf');
+		$k = $this->mysql_escape($key);
+		$v = $this->mysql_escape($value);
+		if ($isset) {
+			$query =
+				"UPDATE $t      \n".
+				"SET   v = '$v' \n".
+				"WHERE k = '$k' ;";
+		} else {
+			$query =
+				"INSERT INTO $t (  k ,   v ) \n".
+				"VALUES         ('$k', '$v') ;";
+		}
+		$q = $this->mysql_query($query);
+		return ($q?true:false);
+	}
+
+	/**
+	 * Strip out empty group names and duplicates, sort.
+	 */
+	private static function sanitizeArray($in) {
+		$out = array();
+		foreach ($in as $item) {
+			if (($item !== '')&&(!in_array($item, $out))) {
+				$out[] = $item;
+			}
+		}
+		natsort($out);
+		return $out;
+	}
+	/**
+	 * Translate an array into a value suitable to be stored into a
+	 * key-value store in the database.
+	 */
+	public static function arrayToValue($list) {
+		$out_list = self::sanitizeArray($list);
+		return ','.implode(',', $out_list).',';
+	}
+	/**
+	 * Translate a value from arrayToValue() back into an array.
+	 */
+	public static function valueToArray($value) {
+		$raw_list = explode(',', $value);
+		$out_list = self::sanitizeArray($raw_list);
+		return $out_list;
+	}
+
+}