Simple PHP Framework

global.php

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+<?php
+
+/* ##### Change Parameters Here ##### */
+
+define('SITE_URL', 'http://survey.sitex.imzcy.com');
+define('MYSQL_HOST', 'localhost');
+define('MYSQL_USER', 'survey');
+define('MYSQL_PASS', 'survey');
+define('MYSQL_DBNAME', 'survey');
+
+
+/* ^^^^^ End Of Change Parameter Here ^^^^^ */
+
+/* ##### Don't Change Here If Not Have To ##### */
+
+// Define Constants
+$include_path = array();
+define('SITE_ROOT', rtrim(dirname(__FILE__), '/\\') . DIRECTORY_SEPARATOR);
+define('LIBRARY_ROOT', SITE_ROOT . 'library' . DIRECTORY_SEPARATOR);
+
+define('SIGNIN_URL', SITE_URL . '/signin/');
+
+define('UUID_LENGTH', 128);
+
+date_default_timezone_set('Asia/Singapore');
+
+// Load Loader Modules
+require_once(LIBRARY_ROOT . 'Loader.php');
+
+// Load Modules
+LoadModule('core.LDefaultErrorHandler');
+
+/* ^^^^^ End Of Don't Change Here If Not Have To ^^^^^ */
+?>

index.php

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+<?php
+
+require_once('global.php');
+
+LoadModule('core.FAssertUser');

library/Loader.php

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+<?php
+
+/********************************
+ *
+ * File Name: Loader.php
+ * Description: Module loader
+ *
+ *******************************/
+
+function LoadModule($module, $params = NULL) {
+
+    $matches = array();
+    $reason = '';
+
+    $ret = preg_match('/^(?P<package>(?:[a-z\\d\\-]+\\.)+)(?P<name>(?P<flag>[lfc]{1})[a-z\\d\\-]+)$/i', $module, $matches);
+
+    if ($ret === FALSE) {
+        $reason = 'Illegal character in module name.';
+        goto errorHandler;
+    }
+
+    if ($ret === 0) {
+        $reason = 'There was an error in the package name you\'ve specified.';
+        goto errorHandler;
+    }
+
+    $package = $matches['package'];
+    $name = $matches['name'];
+    $flag = $matches['flag'];
+
+    $path = LIBRARY_ROOT . str_replace('.', DIRECTORY_SEPARATOR, $package) . $name . '.php';
+
+    if (!file_exists($path)) {
+        $reason = "Module not found. File path = '$path'.";
+        goto errorHandler;
+    }
+
+    require_once($path);
+    switch ($flag) {
+        case 'l': case 'L':
+            // Load functions from file.
+            // Functions are global by default
+            // Load only
+            return TRUE;
+
+        case 'f': case 'F':
+            // Load functions from file.
+            // Functions are global by default
+            // Load and execute
+            return $name($params);
+
+        case 'c': case 'C':
+            // Load classes from file.
+            // Must create return an object
+            return new $name($params);
+    }
+
+errorHandler:
+    trigger_error("Error loading module '$module'. Reason: $reason.", E_USER_ERROR);
+    return FALSE;
+}
+?>

library/core/CUser.php

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+<?php
+
+class CUser {
+    private $isUser = '';
+    private $isModerator = '';
+    private $isAdministrator = '';
+    private $id = '';
+    private $email = '';
+    private $name = '';
+
+    function __construct($params) {
+        if (isset($params)) {
+            if (isset($params['id'])) {
+                // Create user by lookup token
+
+                $dbh = LoadModule('core.FDatabase');
+
+                $stmt = $dbh->prepare('SELECT id, email, name, is_user, is_moderator, is_administrator FROM user WHERE id = :id;');
+                $stmt->bindParam(':id', $params['id']);
+
+
+                if ($stmt->execute()) {
+                    if ($stmt->rowCount() == 1) {
+                        $result = $stmt->fetch();
+
+                        $this->isUser = $result['is_user'];
+                        $this->isModerator = $result['is_moderator'];
+                        $this->isAdministrator = $result['is_administrator'];
+                        $this->id = $result['id'];
+                        $this->email = $result['email'];
+                        $this->name = $result['name'];
+
+                        return;
+                    } else {
+                        $this->isUser = 0;
+                        $this->isModerator = 0;
+                        $this->isAdministrator = 0;
+
+                        return;
+                    }
+                    $this->isUser = 0;
+                    $this->isModerator = 0;
+                    $this->isAdministrator = 0;
+
+                    return;
+                }
+                return;
+            }
+        } else {
+            // Return a new user
+
+            return;
+        }
+    }
+
+    function isUser() {
+        return $this->isUser;
+    }
+
+    function isModerator() {
+        return $this->isModerator;
+    }
+
+    function isAdministrator() {
+        return $this->isAdministrator;
+    }
+}
+
+?>

library/core/FAssertAdministrator.php

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+<?php
+
+function FAssertUser($iPrivilege) {
+    $currentUser = LoadModule('core.FCurrentUser');
+
+    if ($currentUser->isAdministrator()) {
+        return;
+    }
+
+    header('Location', SIGNIN_URL);
+}
+
+?>

library/core/FAssertModerator.php

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+<?php
+
+function FAssertUser($iPrivilege) {
+    $currentUser = LoadModule('core.FCurrentUser');
+
+    if ($currentUser->isModerator()) {
+        return;
+    }
+
+    header('Location', SITE_URL . SIGNIN_URL);
+}
+
+?>

library/core/FAssertUser.php

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+<?php
+
+function FAssertUser($iPrivilege) {
+    $currentUser = LoadModule('core.FCurrentUser');
+
+    if ($currentUser->isUser()) {
+        echo 'is a user';
+        return;
+    }
+
+    header('Location: ' . SIGNIN_URL);
+}
+
+?>

library/core/FCurrentUser.php

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+<?php
+
+function FCurrentUser() {
+    global $_CurrentUser;
+
+    if (isset($_CurrentUser)) {
+        return $_CurrentUser;
+    }
+
+    $_CurrentUser = LoadModule('core.CUser', array('id' => LoadModule('core.FToken')));
+    return $_CurrentUser;
+}
+
+?>

library/core/FDatabase.php

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+<?php
+
+function FDatabase() {
+    global $_Database;
+    echo isset($_Database);
+    if (!isset($_Database)) {
+        // Setup new connection
+        $_Database = new PDO('mysql:host=' . MYSQL_HOST . ';dbname=' . MYSQL_DBNAME, MYSQL_USER, MYSQL_PASS);
+        $_Database->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING);
+    }
+
+    return $_Database;
+}
+
+?>

library/core/FPrivileges.php

@@ -0,0 +1,7 @@
+<?php
+
+define('PRIVILEGE_USER', 0x1);
+define('PRIVILEGE_MODERATOR', 0x2);
+define('PRIVILEGE_ADMINISTRATOR', 0x4);
+
+?>

library/core/FRToken.php

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+<?php
+
+function FRToken() {
+    $token = isset($_COOKIE['rtoken']) ? $_COOKIE['rtoken'] : '';
+
+    if (preg_match('/^[a-zA-Z\\d]{' . UUID_LENGTH . '}$/', $token)) {
+        $dbh = LoadModule('core.FDatabase');
+
+        // Remove expired token
+        $dbh->query('DELETE FROM token WHERE level = 1 AND time < UNIX_TIMESTAMP(DATE_ADD(NOW(),INTERVAL -2 HOUR));');
+        $stmt = $dbh->prepare('SELECT id FROM token WHERE token = :token AND level = 1;');
+        $stmt->bindParam(':token', $token);
+
+        if ($stmt->execute()) {
+            if ($stmt->rowCount() == 1) {
+                $result = $stmt->fetch();
+                return $result['id'];
+            } else {
+                return -1;
+            }
+            return -1;
+        }
+    } else {
+        return -1;
+    }
+}
+
+?>

library/core/FToken.php

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+<?php
+
+function FToken() {
+    $token = isset($_COOKIE['token']) ? $_COOKIE['token'] : '';
+
+    if (preg_match('/^[a-zA-Z\\d]{' . UUID_LENGTH . '}$/', $token)) {
+        $dbh = LoadModule('core.FDatabase');
+
+        $stmt = $dbh->prepare('SELECT id FROM token WHERE token = :token AND level = 0;');
+        $stmt->bindParam(':token', $token);
+
+        if ($stmt->execute()) {
+            if ($stmt->rowCount() == 1) {
+                $result = $stmt->fetch();
+                return $result['id'];
+            } else {
+                return -1;
+            }
+            return -1;
+        }
+    } else {
+        return -1;
+    }
+}
+
+?>

library/core/FUuid.php

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+<?php
+
+function FUuid() {
+    $len = UUID_LENGTH;
+    $chars='abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'; $l = 61;
+
+    $str = '';
+    while ($len-- > 0) {
+        $str .= $chars{mt_rand(0, $l)};
+    }
+
+    return $str;
+}
+
+?>

library/core/LDefaultErrorHandler.php

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+<?php
+
+function __LDefaultErrorHandler($errno, $errstr, $errfile, $errline) {
+    echo $errno . "\n";
+    echo $errstr . "\n";
+    echo $errfile . "\n";
+    echo $errline . "\n";
+
+    //die();
+}
+
+set_error_handler('__LDefaultErrorhandler', E_ALL);
+
+?>