Created File* backends

2012-10-06 23:17:20 +02:00
parent 57a2da32cb
commit 498e00b7d2
10 changed files with 431 additions and 28 deletions
--- a/src/SmsGateway/Auth/FileAuth.php
+++ b/src/SmsGateway/Auth/FileAuth.php
@@ -0,0 +1,142 @@
+<?php
+namespace SmsGateway\Auth;
+
+use SmsGateway\AuthInterface;
+use SmsGateway\LoggerInterface;
+
+/**
+ * Description of FileAuth
+ *
+ * @author Gergely Polonkai
+ */
+class FileAuth implements AuthInterface
+{
+    private $logger;
+
+    private $sendersFile;
+
+    private $tokenFile;
+
+    public function __construct($sendersFile, $tokenFile) {
+        if ($sendersFile == null) {
+            throw new \InvalidArgumentException('A senders file path must be passed to the authenticator!');
+        }
+
+        if (!is_readable($sendersFile)) {
+            throw new \RuntimeException('senders file not readable!');
+        }
+
+        if ($tokenFile == null) {
+            throw new \InvalidArgumentException('A token file path must be passed to the authenticator!');
+        }
+
+        if (
+            (
+                file_exists($tokenFile)
+                && !is_writable($tokenFile)
+            )
+            || (
+                !file_exists($tokenFile)
+                && !is_writable(dirname($tokenFile))
+            )
+        ) {
+            throw new \RuntimeException('Token file is not writable!');
+        }
+
+        $this->sendersFile = $sendersFile;
+        $this->tokenFile = $tokenFile;
+    }
+
+    public function authenticate($username, $password, $ip, $sessionId)
+    {
+        $this->logger->auditLog(LoggerInterface::LOG_AUDIT_LOGIN, $username, "trying to authenticate");
+        $lines = file($this->sendersFile);
+        foreach ($lines as $line) {
+            list($user, $cPassword) = explode(':', trim($line), 2);
+            if ($user == $username) {
+                if (crypt($password, $cPassword) == $cPassword) {
+                    $this->logger->auditLog(LoggerInterface::LOG_AUDIT_LOGIN, $username, "authenticated successfully");
+
+                    return $this->getToken($username, $ip, $sessionId);
+                } else {
+                    $this->logger->auditLog(LoggerInterface::LOG_AUDIT_LOGIN, $username, "authentication failed: bad password");
+                    return false;
+                }
+            }
+        }
+        return false;
+    }
+
+    public function getTokenUsername($token, $ip, $sessionId)
+    {
+        $lines = file($this->tokenFile);
+        foreach ($lines as $line) {
+            list($tokenUser, $tokenIp, $tokenSession, $tokenToken) = explode(':', trim($line), 4);
+            if (($tokenToken == $token) && ($tokenIp == $ip) && ($tokenSession == $sessionId)) {
+                return $tokenUser;
+            }
+        }
+
+        return null;
+    }
+
+    public function isTokenValid($token, $ip, $sessionId)
+    {
+        $this->logger->auditLog(LoggerInterface::LOG_AUDIT_LOGIN, null, 'Checking token validity');
+
+        $lines = file($this->tokenFile);
+        foreach ($lines as $line) {
+            list($tokenUser, $tokenIp, $tokenSession, $tokenToken) = explode(':', trim($line), 4);
+            if (($tokenToken == $token) && ($tokenIp == $ip) && ($tokenSession == $sessionId)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public function getToken($username, $ip, $sessionId) {
+        $this->logger->auditLog(LoggerInterface::LOG_AUDIT_LOGIN, $username, "Getting token");
+
+        $lines = file($this->tokenFile);
+        foreach ($lines as $line) {
+            list($tokenUser, $tokenIp, $tokenSession, $tokenToken) = explode(':', trim($line), 4);
+            if (($tokenUser == $username) && ($tokenIp == $ip) && ($tokenSession == $sessionId)) {
+                return $tokenToken;
+            }
+        }
+
+        $token = str_replace(':', '', uniqid('', true));
+        $fd = fopen($this->tokenFile, 'a');
+        fwrite($fd, sprintf("%s:%s:%s:%s\n", $username, $ip, $sessionId, $token));
+        fclose($fd);
+
+        return $token;
+    }
+
+    public function removeToken($token, $ip, $sessionId) {
+        $username = $this->getTokenUsername($token, $ip, $sessionId);
+        $this->logger->auditLog(LoggerInterface::LOG_AUDIT_LOGIN, $username, "Removing token");
+
+        $lines = file($this->tokenFile);
+        $fd = fopen($this->tokenFile, 'w');
+        foreach ($lines as $line) {
+            list($tokenUser, $tokenIp, $tokenSession, $tokenToken) = explode(':', trim($line), 4);
+            if (($tokenToken != $token) || ($tokenIp != $ip) || ($tokenSession != $sessionId)) {
+                fwrite($fd, sprintf("%s:%s:%s:%s\n", $tokenUser, $tokenIp, $tokenSession, $tokenToken));
+            }
+        }
+        fclose($fd);
+
+        return false;
+        return true;
+    }
+
+    public function getLogger() {
+        return $this->logger;
+    }
+
+    public function setLogger(LoggerInterface $logger) {
+        $this->logger = $logger;
+    }
+}