first commit

2 files changed, 126 insertions, 0 deletions

diff --git a/public/system/library/session/db.php b/public/system/library/session/db.php
new file mode 100644
index 0000000..99882c7
--- /dev/null
+++ b/public/system/library/session/db.php
@@ -0,0 +1,49 @@
+<?php
+/*
+CREATE TABLE IF NOT EXISTS `session` (
+  `session_id` varchar(32) NOT NULL,
+  `data` text NOT NULL,
+  `expire` datetime NOT NULL,
+  PRIMARY KEY (`session_id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_general_ci;
+*/
+namespace Session;
+final class DB {
+	public $expire = '';
+	
+	public function __construct($registry) {
+		$this->db = $registry->get('db');
+		
+		$this->expire = ini_get('session.gc_maxlifetime');
+	}
+	
+	public function read($session_id) {
+		$query = $this->db->query("SELECT `data` FROM `" . DB_PREFIX . "session` WHERE session_id = '" . $this->db->escape($session_id) . "' AND expire > " . (int)time());
+		
+		if ($query->num_rows) {
+			return json_decode($query->row['data'], true);
+		} else {
+			return false;
+		}
+	}
+	
+	public function write($session_id, $data) {
+		if ($session_id) {
+			$this->db->query("REPLACE INTO `" . DB_PREFIX . "session` SET session_id = '" . $this->db->escape($session_id) . "', `data` = '" . $this->db->escape(json_encode($data)) . "', expire = '" . $this->db->escape(date('Y-m-d H:i:s', time() + $this->expire)) . "'");
+		}
+		
+		return true;
+	}
+	
+	public function destroy($session_id) {
+		$this->db->query("DELETE FROM `" . DB_PREFIX . "session` WHERE session_id = '" . $this->db->escape($session_id) . "'");
+		
+		return true;
+	}
+	
+	public function gc($expire) {
+		$this->db->query("DELETE FROM `" . DB_PREFIX . "session` WHERE expire < " . ((int)time() + $expire));
+		
+		return true;
+	}
+}
diff --git a/public/system/library/session/file.php b/public/system/library/session/file.php
new file mode 100644
index 0000000..4a3b821
--- /dev/null
+++ b/public/system/library/session/file.php
@@ -0,0 +1,77 @@
+<?php
+namespace Session;
+class File {
+	private $directory;
+
+	public function read($session_id) {
+		$file = DIR_SESSION . '/sess_' . basename($session_id);
+
+		if (is_file($file)) {
+			$handle = fopen($file, 'r');
+
+			flock($handle, LOCK_SH);
+
+			$data = fread($handle, filesize($file));
+
+			flock($handle, LOCK_UN);
+
+			fclose($handle);
+
+			return unserialize($data);
+		} else {
+			return array();
+		}
+	}
+
+	public function write($session_id, $data) {
+		$file = DIR_SESSION . '/sess_' . basename($session_id);
+
+		$handle = fopen($file, 'w');
+
+		flock($handle, LOCK_EX);
+
+		fwrite($handle, serialize($data));
+
+		fflush($handle);
+
+		flock($handle, LOCK_UN);
+
+		fclose($handle);
+
+		return true;
+	}
+
+	public function destroy($session_id) {
+		$file = DIR_SESSION . '/sess_' . basename($session_id);
+
+		if (is_file($file)) {
+			unset($file);
+		}
+	}
+
+	public function __destruct() {
+		if (ini_get('session.gc_divisor')) {
+			$gc_divisor = ini_get('session.gc_divisor');
+		} else {
+			$gc_divisor = 1;
+		}
+
+		if (ini_get('session.gc_probability')) {
+			$gc_probability = ini_get('session.gc_probability');
+		} else {
+			$gc_probability = 1;
+		}
+
+		if ((rand() % $gc_divisor) < $gc_probability) {
+			$expire = time() - ini_get('session.gc_maxlifetime');
+
+			$files = glob(DIR_SESSION . '/sess_*');
+
+			foreach ($files as $file) {
+				if (filemtime($file) < $expire) {
+					unlink($file);
+				}
+			}
+		}
+	}
+}
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