comparison vendor/symfony/validator/Constraints/FileValidator.php @ 0:c75dbcec494b

Initial commit from drush-created site

+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[e-mail]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Validator\Constraints;
+
+use Symfony\Component\HttpFoundation\File\File as FileObject;
+use Symfony\Component\HttpFoundation\File\UploadedFile;
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidator;
+use Symfony\Component\Validator\Exception\UnexpectedTypeException;
+
+/**
+ * @author Bernhard Schussek <[e-mail]>
+ */
+class FileValidator extends ConstraintValidator
+{
+    const KB_BYTES = 1000;
+    const MB_BYTES = 1000000;
+    const KIB_BYTES = 1024;
+    const MIB_BYTES = 1048576;
+
+    private static $suffices = array(
+        1 => 'bytes',
+        self::KB_BYTES => 'kB',
+        self::MB_BYTES => 'MB',
+        self::KIB_BYTES => 'KiB',
+        self::MIB_BYTES => 'MiB',
+    );
+
+    /**
+     * {@inheritdoc}
+     */
+    public function validate($value, Constraint $constraint)
+    {
+        if (!$constraint instanceof File) {
+            throw new UnexpectedTypeException($constraint, __NAMESPACE__.'\File');
+        }
+
+        if (null === $value || '' === $value) {
+            return;
+        }
+
+        if ($value instanceof UploadedFile && !$value->isValid()) {
+            switch ($value->getError()) {
+                case UPLOAD_ERR_INI_SIZE:
+                    $iniLimitSize = UploadedFile::getMaxFilesize();
+                    if ($constraint->maxSize && $constraint->maxSize < $iniLimitSize) {
+                        $limitInBytes = $constraint->maxSize;
+                        $binaryFormat = $constraint->binaryFormat;
+                    } else {
+                        $limitInBytes = $iniLimitSize;
+                        $binaryFormat = true;
+                    }
+
+                    list($sizeAsString, $limitAsString, $suffix) = $this->factorizeSizes(0, $limitInBytes, $binaryFormat);
+                    $this->context->buildViolation($constraint->uploadIniSizeErrorMessage)
+                        ->setParameter('{{ limit }}', $limitAsString)
+                        ->setParameter('{{ suffix }}', $suffix)
+                        ->setCode(UPLOAD_ERR_INI_SIZE)
+                        ->addViolation();
+
+                    return;
+                case UPLOAD_ERR_FORM_SIZE:
+                    $this->context->buildViolation($constraint->uploadFormSizeErrorMessage)
+                        ->setCode(UPLOAD_ERR_FORM_SIZE)
+                        ->addViolation();
+
+                    return;
+                case UPLOAD_ERR_PARTIAL:
+                    $this->context->buildViolation($constraint->uploadPartialErrorMessage)
+                        ->setCode(UPLOAD_ERR_PARTIAL)
+                        ->addViolation();
+
+                    return;
+                case UPLOAD_ERR_NO_FILE:
+                    $this->context->buildViolation($constraint->uploadNoFileErrorMessage)
+                        ->setCode(UPLOAD_ERR_NO_FILE)
+                        ->addViolation();
+
+                    return;
+                case UPLOAD_ERR_NO_TMP_DIR:
+                    $this->context->buildViolation($constraint->uploadNoTmpDirErrorMessage)
+                        ->setCode(UPLOAD_ERR_NO_TMP_DIR)
+                        ->addViolation();
+
+                    return;
+                case UPLOAD_ERR_CANT_WRITE:
+                    $this->context->buildViolation($constraint->uploadCantWriteErrorMessage)
+                        ->setCode(UPLOAD_ERR_CANT_WRITE)
+                        ->addViolation();
+
+                    return;
+                case UPLOAD_ERR_EXTENSION:
+                    $this->context->buildViolation($constraint->uploadExtensionErrorMessage)
+                        ->setCode(UPLOAD_ERR_EXTENSION)
+                        ->addViolation();
+
+                    return;
+                default:
+                    $this->context->buildViolation($constraint->uploadErrorMessage)
+                        ->setCode($value->getError())
+                        ->addViolation();
+
+                    return;
+            }
+        }
+
+        if (!is_scalar($value) && !$value instanceof FileObject && !(is_object($value) && method_exists($value, '__toString'))) {
+            throw new UnexpectedTypeException($value, 'string');
+        }
+
+        $path = $value instanceof FileObject ? $value->getPathname() : (string) $value;
+
+        if (!is_file($path)) {
+            $this->context->buildViolation($constraint->notFoundMessage)
+                ->setParameter('{{ file }}', $this->formatValue($path))
+                ->setCode(File::NOT_FOUND_ERROR)
+                ->addViolation();
+
+            return;
+        }
+
+        if (!is_readable($path)) {
+            $this->context->buildViolation($constraint->notReadableMessage)
+                ->setParameter('{{ file }}', $this->formatValue($path))
+                ->setCode(File::NOT_READABLE_ERROR)
+                ->addViolation();
+
+            return;
+        }
+
+        $sizeInBytes = filesize($path);
+
+        if (0 === $sizeInBytes) {
+            $this->context->buildViolation($constraint->disallowEmptyMessage)
+                ->setParameter('{{ file }}', $this->formatValue($path))
+                ->setCode(File::EMPTY_ERROR)
+                ->addViolation();
+
+            return;
+        }
+
+        if ($constraint->maxSize) {
+            $limitInBytes = $constraint->maxSize;
+
+            if ($sizeInBytes > $limitInBytes) {
+                list($sizeAsString, $limitAsString, $suffix) = $this->factorizeSizes($sizeInBytes, $limitInBytes, $constraint->binaryFormat);
+                $this->context->buildViolation($constraint->maxSizeMessage)
+                    ->setParameter('{{ file }}', $this->formatValue($path))
+                    ->setParameter('{{ size }}', $sizeAsString)
+                    ->setParameter('{{ limit }}', $limitAsString)
+                    ->setParameter('{{ suffix }}', $suffix)
+                    ->setCode(File::TOO_LARGE_ERROR)
+                    ->addViolation();
+
+                return;
+            }
+        }
+
+        if ($constraint->mimeTypes) {
+            if (!$value instanceof FileObject) {
+                $value = new FileObject($value);
+            }
+
+            $mimeTypes = (array) $constraint->mimeTypes;
+            $mime = $value->getMimeType();
+
+            foreach ($mimeTypes as $mimeType) {
+                if ($mimeType === $mime) {
+                    return;
+                }
+
+                if ($discrete = strstr($mimeType, '/*', true)) {
+                    if (strstr($mime, '/', true) === $discrete) {
+                        return;
+                    }
+                }
+            }
+
+            $this->context->buildViolation($constraint->mimeTypesMessage)
+                ->setParameter('{{ file }}', $this->formatValue($path))
+                ->setParameter('{{ type }}', $this->formatValue($mime))
+                ->setParameter('{{ types }}', $this->formatValues($mimeTypes))
+                ->setCode(File::INVALID_MIME_TYPE_ERROR)
+                ->addViolation();
+        }
+    }
+
+    private static function moreDecimalsThan($double, $numberOfDecimals)
+    {
+        return strlen((string) $double) > strlen(round($double, $numberOfDecimals));
+    }
+
+    /**
+     * Convert the limit to the smallest possible number
+     * (i.e. try "MB", then "kB", then "bytes").
+     */
+    private function factorizeSizes($size, $limit, $binaryFormat)
+    {
+        if ($binaryFormat) {
+            $coef = self::MIB_BYTES;
+            $coefFactor = self::KIB_BYTES;
+        } else {
+            $coef = self::MB_BYTES;
+            $coefFactor = self::KB_BYTES;
+        }
+
+        $limitAsString = (string) ($limit / $coef);
+
+        // Restrict the limit to 2 decimals (without rounding! we
+        // need the precise value)
+        while (self::moreDecimalsThan($limitAsString, 2)) {
+            $coef /= $coefFactor;
+            $limitAsString = (string) ($limit / $coef);
+        }
+
+        // Convert size to the same measure, but round to 2 decimals
+        $sizeAsString = (string) round($size / $coef, 2);
+
+        // If the size and limit produce the same string output
+        // (due to rounding), reduce the coefficient
+        while ($sizeAsString === $limitAsString) {
+            $coef /= $coefFactor;
+            $limitAsString = (string) ($limit / $coef);
+            $sizeAsString = (string) round($size / $coef, 2);
+        }
+
+        return array($sizeAsString, $limitAsString, self::$suffices[$coef]);
+    }
+}