added predis and eseye back in.

vendor/fgrosse/phpasn1/lib/ASN1/AbstractString.php

@@ -0,0 +1,136 @@
+<?php
+/*
+ * This file is part of the PHPASN1 library.
+ *
+ * Copyright © Friedrich Große <friedrich.grosse@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace FG\ASN1;
+
+use Exception;
+
+abstract class AbstractString extends ASNObject implements Parsable
+{
+    /** @var string */
+    protected $value;
+    private $checkStringForIllegalChars = true;
+    private $allowedCharacters = [];
+
+    /**
+     * The abstract base class for ASN.1 classes which represent some string of character.
+     *
+     * @param string $string
+     */
+    public function __construct($string)
+    {
+        $this->value = $string;
+    }
+
+    public function getContent()
+    {
+        return $this->value;
+    }
+
+    protected function allowCharacter($character)
+    {
+        $this->allowedCharacters[] = $character;
+    }
+
+    protected function allowCharacters(...$characters)
+    {
+        foreach ($characters as $character) {
+            $this->allowedCharacters[] = $character;
+        }
+    }
+
+    protected function allowNumbers()
+    {
+        foreach (range('0', '9') as $char) {
+            $this->allowedCharacters[] = (string) $char;
+        }
+    }
+
+    protected function allowAllLetters()
+    {
+        $this->allowSmallLetters();
+        $this->allowCapitalLetters();
+    }
+
+    protected function allowSmallLetters()
+    {
+        foreach (range('a', 'z') as $char) {
+            $this->allowedCharacters[] = $char;
+        }
+    }
+
+    protected function allowCapitalLetters()
+    {
+        foreach (range('A', 'Z') as $char) {
+            $this->allowedCharacters[] = $char;
+        }
+    }
+
+    protected function allowSpaces()
+    {
+        $this->allowedCharacters[] = ' ';
+    }
+
+    protected function allowAll()
+    {
+        $this->checkStringForIllegalChars = false;
+    }
+
+    protected function calculateContentLength()
+    {
+        return strlen($this->value);
+    }
+
+    protected function getEncodedValue()
+    {
+        if ($this->checkStringForIllegalChars) {
+            $this->checkString();
+        }
+
+        return $this->value;
+    }
+
+    protected function checkString()
+    {
+        $stringLength = $this->getContentLength();
+        for ($i = 0; $i < $stringLength; $i++) {
+            if (in_array($this->value[$i], $this->allowedCharacters) == false) {
+                $typeName = Identifier::getName($this->getType());
+                throw new Exception("Could not create a {$typeName} from the character sequence '{$this->value}'.");
+            }
+        }
+    }
+
+    public static function fromBinary(&$binaryData, &$offsetIndex = 0)
+    {
+        $parsedObject = new static('');
+
+        self::parseIdentifier($binaryData[$offsetIndex], $parsedObject->getType(), $offsetIndex++);
+        $contentLength = self::parseContentLength($binaryData, $offsetIndex);
+        $string = substr($binaryData, $offsetIndex, $contentLength);
+        $offsetIndex += $contentLength;
+
+        $parsedObject->value = $string;
+        $parsedObject->setContentLength($contentLength);
+        return $parsedObject;
+    }
+
+    public static function isValid($string)
+    {
+        $testObject = new static($string);
+        try {
+            $testObject->checkString();
+
+            return true;
+        } catch (Exception $exception) {
+            return false;
+        }
+    }
+}