Validator, captcha, form, #16

git-svn-id: svn+ssh://code.netmonsters.ru/svn/majestic/branches/evo@141 4cb57b5f-5bbd-dd11-951b-001d605cbbc5

captcha/Captcha.php

@@ -0,0 +1,79 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage captcha
+ * @since 2010-04-24
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+class Captcha
+{
+    
+    protected $font_size = 38;
+    protected $width     = 200;
+    protected $height    = 70;
+
+
+    public function getImage($token)
+    {
+        $font = dirname(__FILE__) . '/poh.ttf';
+        
+        $image = imagecreatetruecolor($this->width, $this->height);
+        // белый фон
+        $background = imagecolorallocate($image, 255, 255, 255);
+        imagefilledrectangle($image, 0, 0, $this->width, $this->height, $background);
+        
+        // основная магия тут
+        if (Session::get('_ctoken') == $token && Session::get('_ccode')) {
+            
+            $code = Session::get('_ccode');
+            
+            $color = imagecolorallocate($image, 81, 81, 81);
+            
+            for ($j = 0; $j < 5; $j++) {
+                imageellipse($image, rand(-$this->width, $this->width * 2), 
+                             rand(-$this->height, $this->height * 2), 
+                             $this->width, $this->width, $color);
+            }
+            
+            $letters = preg_split("//u", strtoupper($code));
+            $length = count($letters);
+            $step = floor($this->width / $length);
+            $i = 2;
+            
+            foreach ($letters as $key => $letter) {
+                imagettftext($image, $this->font_size, 0, 
+                             rand($i + 2, $i + 4), ($this->font_size + $this->height) / 2, 
+                             $color, $font, $letter);
+                $i = $i + $step ;
+            }
+        }
+        
+        ob_start();
+        header("Cache-Control: no-store, no-cache, must-revalidate");
+        header("Content-Type: image/jpg");
+        imagejpeg($image, '', 100);
+        imagedestroy($image);
+        return ob_get_clean();
+    }
+    
+    public function getToken()
+    {
+        $token = md5(microtime() . uniqid());
+        $code = strtoupper(substr(str_ireplace(array('0', 'O'), '', md5(time() . 'captcha' . rand(0, 1000))), 1, 5));
+        Session::set('_ctoken', $token);
+        Session::set('_ccode', $code);
+        return $token;
+    }
+    
+    public function checkCode($token, $code)
+    {
+        if (Session::get('_ctoken') == $token && Session::get('_ccode') == strtoupper($code)){
+            return true;
+        }
+        return false;
+    }
+}

captcha/CaptchaImageAction.php

@@ -0,0 +1,21 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage captcha
+ * @since 2010-04-24
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+class CaptchaImageAction
+{
+    
+    public function __construct()
+    {
+        $captcha = new Captcha();
+        echo $captcha->getImage(Env::Get('ctoken'));
+        exit();        
+    }
+}

captcha/CaptchaValidator.php

@@ -0,0 +1,32 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage validator
+ * @since 2010-04-26
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+class CaptchaValidator extends Validator
+{
+
+    const WRONG_CODE = 'is_empty';
+    
+    protected $templates = array(self::WRONG_CODE => 'Entered code wrong');
+    
+    public function isValid($value, $context = null)
+    {
+        if (!$context || !isset($context['ctoken']) || !isset($context['ccode'])) {
+            $this->error();
+            return false;
+        }
+        $captcha = new Captcha();
+        if ($captcha->checkCode($context['ctoken'], $context['ccode'])) {
+            return true;
+        }
+        $this->error();
+        return false;
+    }
+}

exception/ErrorHandler.php

@@ -83,6 +83,7 @@ class ErrorHandler
         
         $get = self::wrapArray(Env::Get(), 'GET');
         $post = self::wrapArray(Env::Post(), 'POST');
+        $session = self::wrapArray(Session::get(), 'SESSION');
         $files = self::wrapArray(Env::Files(), 'FILES');
         $cookies = self::wrapArray(Env::Cookie(), 'COOKIE');
         $server = self::wrapArray(Env::Server(), 'SERVER');
@@ -174,6 +175,8 @@ class ErrorHandler
         {$get}
         <h3 id="post-info">POST</h3>
         {$post}
+        <h3 id="session-info">SESSION</h3>
+        {$session}
         <h3 id="files-info">FILES</h3>
         {$files}
         <h3 id="cookie-info">COOKIES</h3>

form/Form.php

@@ -0,0 +1,119 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage form
+ * @since 2010-04-24
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+abstract class Form
+{
+
+    const SUCCESS = 'success';
+    const ERROR   = 'error';
+    
+    protected $fields = array();
+    protected $messages = array(self::SUCCESS => 'Form data valid',
+                                self::ERROR => 'Form data invalid');
+    
+    protected $valid = true;
+    
+    public function __construct()
+    {
+        $this->init();
+    }
+    
+    /**
+     * @param string $name
+     * @return FormField
+     */
+    protected function addField($name, $message = false)
+    {
+        $this->fields[$name] = new FormField($message);
+        return $this->fields[$name];
+    }
+    
+    public function isValid($data)
+    {
+        if (!is_array($data)) {
+            throw new Exception(__CLASS__ . '::' . __METHOD__ . ' expects an array');
+        }
+        
+        foreach ($this->fields as $field_name => $field) {
+            if (isset($data[$field_name])) {
+                $this->valid &= $field->isValid($data[$field_name], $data);
+            } else {
+                $this->valid &= $field->isValid(null, $data);
+            }
+        }
+        if (!$this->valid) {
+            $this->fillHelperData();
+        }
+        return $this->valid;
+    }
+    
+    public function getMessages()
+    {
+        $messages = array();
+        foreach ($this->fields as $name => $field) {
+            if ($mess = $field->getMessage()) {
+                $messages[$name] = $mess;
+            }
+        }
+        return $messages;
+    }
+    
+    public function getValues()
+    {
+        $values = array();
+        foreach ($this->fields as $key => $field) {
+            if (!$field->isIgnored()) {
+                $values[$key] = $field->getValue();
+            }
+        }
+        return $values;
+    }
+    
+    public function getSourceValues()
+    {
+        $values = array();
+        foreach ($this->fields as $key => $field) {
+            $values[$key] = $field->getSourceValue();
+        }
+        return $values;
+    }
+    
+    public function getMessageType()
+    {
+        return ($this->valid) ? self::SUCCESS : self::ERROR;
+    }
+    
+    public function getMessage()
+    {
+        return $this->messages[$this->getMessageType()];
+    }
+    
+    public function setSuccessMessage($message)
+    {
+        $this->messages[self::SUCCESS] = (string) $message;
+        return $this;
+    }
+    
+    public function setErrorMessage($message)
+    {
+        $this->messages[self::ERROR] = (string) $message;
+        return $this;
+    }
+    
+    protected function fillHelperData()
+    {
+        $data['messages'] = $this->getMessages();
+        $data['values'] = $this->getSourceValues();
+        Session::set(get_class($this), $data);
+    }
+    
+    abstract protected function init();
+}

form/FormField.php

@@ -0,0 +1,173 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru 
+ * @package Majestic
+ * @subpackage form
+ * @since 2010-04-25
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+class FormField
+{
+    
+    protected $validators = array();
+    protected $filters = array();
+    
+    /**
+     * Used instead message of validator if defined.
+     * 
+     * @var string
+     */
+    protected $default_message = false;
+    protected $message = false;
+    protected $value;
+    
+    /* Flags */
+    protected $required = true;
+    protected $ignored = false;
+    
+    
+    public function __construct($default_message = false)
+    {
+        $this->default_message = $default_message;
+    }
+    
+    public function setRequired($flag)
+    {
+        $this->required = (bool) $flag;
+        return $this;
+    }
+    
+    public function isRequired()
+    {
+        return $this->required;
+    }
+    
+    public function setIgnored($flag)
+    {
+        $this->ignored = (bool) $flag;
+        return $this;
+    }
+    
+    public function isIgnored()
+    {
+        return $this->ignored;
+    }
+    
+    public function addValidators($validators)
+    {
+        foreach ($validators as $validator) {
+            $this->addValidator($validator);
+        }
+        return $this;
+    }
+    
+    public function addValidator($validator)
+    {
+        if ($validator instanceof iValidator) {
+            $name = get_class($validator);
+        } elseif (is_string($validator)) {
+            $name = $validator . 'Validator';
+            $validator = new $name();
+        } else {
+            throw new Exception('Invalid validator provided to addValidator; must be string or iValidator');
+        }
+        $this->validators[$name] = $validator;
+        return $this;
+    }
+    
+    public function addFilters($filters)
+    {
+        foreach ($filters as $filter) {
+            $this->addFilter($filter);
+        }
+        return $this;
+    }
+    
+    public function addFilter($filter)
+    {
+       if ($filter instanceof iFilter) {
+            $name = get_class($filter);
+        } elseif (is_string($filter)) {
+            $name = $filter . 'Filter';
+            $filter = new $name();
+        } else {
+            throw new Exception('Invalid filter provided to addFilter; must be string or iFilter');
+        }
+        $this->filters[$name] = $filter;
+        return $this;
+    }
+    
+    public function getValue()
+    {
+        $value = $this->value;
+        if (is_array($value)) {
+            array_walk_recursive($value, array($this, 'filterValue'));
+        } else {
+            $this->filterValue($value, $value);
+        }
+        return $value;
+    }
+    
+    /**
+     * $value & $key for array_walk_recursive
+     * 
+     * @param mixed $value
+     * @param mixed $key
+     */
+    protected function filterValue(&$value, &$key)
+    {
+        foreach ($this->filters as $filter) {
+            $value = $filter->filter($value);
+        }
+    }
+    
+    public function getSourceValue()
+    {
+        return $this->value;
+    }
+    
+    public function isValid($value, $context = null)
+    {
+        $this->value = $value;
+        // filtered value here
+        $value = $this->getValue();
+        
+        $valid = true;
+        
+        if ((($value === '') || ($value === null)) && !$this->isRequired()) {
+            return $valid;
+        }
+        
+        foreach ($this->validators as $validator) {
+            if (is_array($value)) {
+                foreach ($value as $val) {
+                    if (!$validator->isValid($val, $context)) {
+                        $valid = false;
+                        if (!$this->default_message) {
+                            throw new Exception('Define default message for array fields');
+                        }
+                        $this->message = $this->default_message;
+                    }
+                }
+                if ($valid) {
+                    continue;
+                }
+            } elseif ($validator->isValid($value, $context)) {
+                continue;
+            }
+            
+            $valid = false;
+            $this->message = ($this->default_message) ? $this->default_message : $validator->getMessage();
+            break;
+        }
+        return $valid;
+    }
+    
+    public function getMessage()
+    {
+        return $this->message;
+    }
+}

form/FormViewHelper.php

@@ -0,0 +1,44 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage Form
+ * @since 2010-04-25
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+class FormViewHelper extends ViewHelper
+{
+    
+    protected $data = null;
+    
+    public function form($form = null)
+    {
+        if ($this->data === null) {
+            if ($form == null) {
+                throw new Exception('Form name required for helper init');
+            }
+            $this->data = Session::get($form, array());
+            Session::del($form);
+        }
+        return $this;
+    }
+    
+    public function value($field)
+    {
+        if (isset($this->data['values'][$field])) {
+            return $this->view->escape($this->data['values'][$field]);
+        }
+        return '';
+    }
+    
+    public function message($field)
+    {
+        if (isset($this->data['messages'][$field])) {
+            return '<span class="error">' . $this->view->escape($this->data['messages'][$field]) . '</span>';
+        }
+        return '';
+    }
+}

validator/EmailValidator.php

@@ -0,0 +1,17 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage validator
+ * @since 2010-04-26
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+class EmailValidator extends RegexValidator
+{
+    protected $regex = '/^([a-z0-9._-]{2,23})\@([a-z0-9-]{2,22}\.)+\w{2,5}$/i';
+    
+    public function __construct(){}
+}

validator/NotEmptyValidator.php

@@ -0,0 +1,32 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage validator
+ * @since 2010-04-26
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+class NotEmptyValidator extends Validator
+{
+
+    const IS_EMPTY = 'is_empty';
+    
+    protected $templates = array(self::IS_EMPTY => 'Value is required and can\'t be empty');
+    
+    public function isValid($value, $context = null)
+    {
+        $this->setValue($value);
+
+        if (is_string($value) && $value === '') {
+            $this->error();
+            return false;
+        } elseif (!is_string($value) && empty($value)) {
+            $this->error();
+            return false;
+        }
+        return true;
+    }
+}

validator/RegexValidator.php

@@ -0,0 +1,41 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage validator
+ * @since 2010-04-26
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+class RegexValidator extends Validator
+{
+
+    const NOT_MATCH = 'regex_not_match';
+    
+    protected $vars = array('regex');
+    protected $templates = array(self::NOT_MATCH => '"%value%" does not match against regex "%regex%"');
+    
+    protected $regex;
+    
+    public function __construct($regex)
+    {
+        $this->regex = $regex;
+    }
+    
+    public function isValid($value, $context = null)
+    {
+        $this->setValue($value);
+
+        $status = preg_match($this->regex, $value);
+        if ($status === false) {
+            throw new Exception('Internal error matching regex "' . $this->regex . ' against value "' . $value . '"');
+        }
+        if (!$status) {
+            $this->error();
+            return false;
+        }
+        return true;
+    }
+}

validator/Validator.php

@@ -0,0 +1,65 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage validator
+ * @since 2010-04-24
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+abstract class Validator implements iValidator
+{
+    
+    protected $value;
+    protected $message;
+    protected $vars = array();
+    protected $templates = array();
+
+    
+    public function getMessage()
+    {
+        return $this->message;
+    }
+    
+    protected function setValue($value)
+    {
+        $this->value = (string) $value;
+        $this->message = null;
+    }
+    
+    public function setMessage($key, $message)
+    {
+        $this->templates[$key] = $message;
+    }
+    
+    protected function error($template = null, $value = null)
+    {
+        if ($template === null) {
+            $template = current(array_keys($this->templates));
+        }
+        if ($value === null) {
+            $value = $this->value;
+        }
+        $this->message = $this->createMessage($template, $value);
+    }
+    
+    protected function createMessage($template, $value)
+    {
+        if (!isset($this->templates[$template])) {
+            throw new Exception('Message template "' . $template . '" unknown.');
+        }
+        
+        $message = $this->templates[$template];
+        if (strpos($message, '%') !== false) {
+            $message = str_replace('%value%', (string) $value, $message);
+            foreach ($this->vars as $property) {
+                if (property_exists($this, $property)) {
+                    $message = str_replace("%$property%", (string) $this->$property, $message);
+                }
+            }
+        }
+        return $message;
+    }
+}

validator/iValidator.php

@@ -0,0 +1,16 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage validator
+ * @since 2010-04-25
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+interface iValidator
+{
+    public function isValid($value, $context = null);
+    public function getMessage();
+}

view/PHPView.php

@@ -119,7 +119,7 @@ class PHPView implements iView
     protected function getHelper($name)
     {
         if (!isset($this->helpers[$name])) {
-            $class = 'ViewHelper' . ucfirst($name);
+            $class = ucfirst($name) . 'ViewHelper';
             if (!class_exists($class)) {
                 throw new GeneralException('View helper "' . $class . '" not found.');
             }

view/helpers/ViewHelperBreadcrumb.php → view/helpers/BreadcrumbViewHelper.php

@@ -9,7 +9,7 @@
  * @filesource $URL$
  */
 
-class ViewHelperBreadcrumb extends ViewHelper
+class BreadcrumbViewHelper extends ViewHelper
 {
     
     protected $separator = ' > ';

view/helpers/ViewHelperGet.php → view/helpers/GetViewHelper.php

@@ -9,7 +9,7 @@
  * @filesource $URL$
  */
 
-class ViewHelperGet extends ViewHelper
+class GetViewHelper extends ViewHelper
 {
     
     protected $get;

view/helpers/ViewHelperHead.php → view/helpers/HeadViewHelper.php

@@ -9,7 +9,7 @@
  * @filesource $URL$
  */
 
-class ViewHelperHead extends ViewHelper
+class HeadViewHelper extends ViewHelper
 {
     
     public function head($string = false)

view/helpers/ViewHelperMsg.php → view/helpers/MsgViewHelper.php

@@ -9,24 +9,33 @@
  * @filesource $URL$
  */
 
-class ViewHelperMsg extends ViewHelper
+class MsgViewHelper extends ViewHelper
 {
     
+    const SUCCESS = 'success';
+    const ERROR = 'error';
+    
     protected $get;
     
-    public function msg()
+    public function msg($msg = null, $type = null)
     {
+        if ($msg && $type) {
+            if (!in_array($type, array(self::SUCCESS, self::ERROR))) {
+                throw new Exception('Unknown message type: "' . $type . '"');
+            }
+            Session::set(__CLASS__, array('message' => $msg, 'type' => $type));
+        }
         return $this;
     }
     
     public function success($msg)
     {
-        Session::set(__CLASS__, array('message' => $msg, 'type' => 'success'));
+        Session::set(__CLASS__, array('message' => $msg, 'type' => self::SUCCESS));
     }
     
     public function error($msg)
     {
-        Session::set(__CLASS__, array('message' => $msg, 'type' => 'error'));
+        Session::set(__CLASS__, array('message' => $msg, 'type' => self::ERROR));
     }
     
     public function __toString()

view/helpers/ViewHelperTitle.php → view/helpers/TitleViewHelper.php

@@ -9,7 +9,7 @@
  * @filesource $URL$
  */
 
-class ViewHelperTitle extends ViewHelper
+class TitleViewHelper extends ViewHelper
 {
     
     protected $separator = ' - ';