[bc\break] Remove deprecated and validators auto injections

* Remove AllowEmpty / ContinueIfEmpty deprecated on 2.4.8.
  Zend\Validator\NotEmpty should be added to the ValidatorChain when expected.

* Remove UploadFile validator auto injection
  Zend\Validator\File\UploadFile should be added to the ValidatorChain when expected.

Author: Maks3w

src/ArrayInput.php

@@ -76,22 +76,10 @@ public function isValid($context = null)
             return false;
         }
 
-        if (!$this->continueIfEmpty() && !$this->allowEmpty()) {
-            $this->injectNotEmptyValidator();
-        }
         $validator = $this->getValidatorChain();
         $values    = $this->getValue();
         $result    = true;
         foreach ($values as $value) {
-            $empty = ($value === null || $value === '' || $value === []);
-            if ($empty && !$this->isRequired() && !$this->continueIfEmpty()) {
-                $result = true;
-                continue;
-            }
-            if ($empty && $this->allowEmpty() && !$this->continueIfEmpty()) {
-                $result = true;
-                continue;
-            }
             $result = $validator->isValid($value, $context);
             if (!$result) {
                 if ($hasFallback) {

src/EmptyContextInterface.php

@@ -212,22 +212,6 @@ public function createInput($inputSpecification)
                 case 'required':
                     $input->setRequired($value);
                     break;
-                case 'allow_empty':
-                    $input->setAllowEmpty($value);
-                    if (!isset($inputSpecification['required'])) {
-                        $input->setRequired(!$value);
-                    }
-                    break;
-                case 'continue_if_empty':
-                    if (!$input instanceof Input) {
-                        throw new Exception\RuntimeException(sprintf(
-                            '%s "continue_if_empty" can only set to inputs of type "%s"',
-                            __METHOD__,
-                            Input::class
-                        ));
-                    }
-                    $input->setContinueIfEmpty($inputSpecification['continue_if_empty']);
-                    break;
                 case 'error_message':
                     $input->setErrorMessage($value);
                     break;

src/Factory.php

@@ -9,8 +9,6 @@
 
 namespace Zend\InputFilter;
 
-use Zend\Validator\File\UploadFile as UploadValidator;
-
 /**
  * FileInput is a special Input type for handling uploaded files.
  *
@@ -32,29 +30,6 @@ class FileInput extends Input
      */
     protected $isValid = false;
 
-    /**
-     * @var bool
-     */
-    protected $autoPrependUploadValidator = true;
-
-    /**
-     * @param  bool $value Enable/Disable automatically prepending an Upload validator
-     * @return FileInput
-     */
-    public function setAutoPrependUploadValidator($value)
-    {
-        $this->autoPrependUploadValidator = $value;
-        return $this;
-    }
-
-    /**
-     * @return bool
-     */
-    public function getAutoPrependUploadValidator()
-    {
-        return $this->autoPrependUploadValidator;
-    }
-
     /**
      * @return mixed
      */
@@ -83,29 +58,6 @@ public function getValue()
         return $value;
     }
 
-    /**
-     * Checks if the raw input value is an empty file input eg: no file was uploaded
-     *
-     * @param $rawValue
-     * @return bool
-     */
-    public function isEmptyFile($rawValue)
-    {
-        if (!is_array($rawValue)) {
-            return true;
-        }
-
-        if (isset($rawValue['error']) && $rawValue['error'] === UPLOAD_ERR_NO_FILE) {
-            return true;
-        }
-
-        if (count($rawValue) === 1 && isset($rawValue[0])) {
-            return $this->isEmptyFile($rawValue[0]);
-        }
-
-        return false;
-    }
-
     /**
      * @param  mixed $context Extra "context" to provide the validator
      * @return bool
@@ -114,10 +66,7 @@ public function isValid($context = null)
     {
         $rawValue        = $this->getRawValue();
         $hasValue        = $this->hasValue();
-        $empty           = $this->isEmptyFile($rawValue);
         $required        = $this->isRequired();
-        $allowEmpty      = $this->allowEmpty();
-        $continueIfEmpty = $this->continueIfEmpty();
 
         if (! $hasValue && ! $required) {
             return true;
@@ -130,15 +79,6 @@ public function isValid($context = null)
             return false;
         }
 
-        if ($empty && ! $required && ! $continueIfEmpty) {
-            return true;
-        }
-
-        if ($empty && $allowEmpty && ! $continueIfEmpty) {
-            return true;
-        }
-
-        $this->injectUploadValidator();
         $validator = $this->getValidatorChain();
         //$value   = $this->getValue(); // Do not run the filters yet for File uploads (see getValue())
 
@@ -168,53 +108,4 @@ public function isValid($context = null)
 
         return $this->isValid;
     }
-
-    /**
-     * @return void
-     */
-    protected function injectUploadValidator()
-    {
-        if (!$this->autoPrependUploadValidator) {
-            return;
-        }
-        $chain = $this->getValidatorChain();
-
-        // Check if Upload validator is already first in chain
-        $validators = $chain->getValidators();
-        if (isset($validators[0]['instance'])
-            && $validators[0]['instance'] instanceof UploadValidator
-        ) {
-            $this->autoPrependUploadValidator = false;
-            return;
-        }
-
-        $chain->prependByName('fileuploadfile', [], true);
-        $this->autoPrependUploadValidator = false;
-    }
-
-    /**
-     * @deprecated 2.4.8 See note on parent class. Removal does not affect this class.
-     *
-     * No-op, NotEmpty validator does not apply for FileInputs.
-     * See also: BaseInputFilter::isValid()
-     *
-     * @return void
-     */
-    protected function injectNotEmptyValidator()
-    {
-        $this->notEmptyValidator = true;
-    }
-
-    /**
-     * @param  InputInterface $input
-     * @return FileInput
-     */
-    public function merge(InputInterface $input)
-    {
-        parent::merge($input);
-        if ($input instanceof FileInput) {
-            $this->setAutoPrependUploadValidator($input->getAutoPrependUploadValidator());
-        }
-        return $this;
-    }
 }