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system/ThirdParty/Kint/Utils.php

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+<?php
+
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013 Jonathan Vollebregt (jnvsor@gmail.com), Rokas Šleinius (raveren@gmail.com)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+namespace Kint;
+
+use Kint\Zval\BlobValue;
+use ReflectionNamedType;
+use ReflectionType;
+
+/**
+ * A collection of utility methods. Should all be static methods with no dependencies.
+ */
+final class Utils
+{
+    /**
+     * @codeCoverageIgnore
+     */
+    private function __construct()
+    {
+    }
+
+    /**
+     * Turns a byte value into a human-readable representation.
+     *
+     * @param int $value Amount of bytes
+     *
+     * @return array Human readable value and unit
+     */
+    public static function getHumanReadableBytes($value)
+    {
+        static $unit = ['B', 'KB', 'MB', 'GB', 'TB'];
+
+        $negative = $value < 0;
+        $value = \abs($value);
+
+        if ($value < 1024) {
+            $i = 0;
+            $value = \floor($value);
+        } elseif ($value < 0xFFFCCCCCCCCCCCC >> 40) {
+            $i = 1;
+        } elseif ($value < 0xFFFCCCCCCCCCCCC >> 30) {
+            $i = 2;
+        } elseif ($value < 0xFFFCCCCCCCCCCCC >> 20) {
+            $i = 3;
+        } else {
+            $i = 4;
+        }
+
+        if ($i) {
+            $value = $value / \pow(1024, $i);
+        }
+
+        if ($negative) {
+            $value *= -1;
+        }
+
+        return [
+            'value' => \round($value, 1),
+            'unit' => $unit[$i],
+        ];
+    }
+
+    public static function isSequential(array $array)
+    {
+        return \array_keys($array) === \range(0, \count($array) - 1);
+    }
+
+    public static function isAssoc(array $array)
+    {
+        return (bool) \count(\array_filter(\array_keys($array), 'is_string'));
+    }
+
+    public static function composerGetExtras($key = 'kint')
+    {
+        $extras = [];
+
+        if (0 === \strpos(KINT_DIR, 'phar://')) {
+            // Only run inside phar file, so skip for code coverage
+            return $extras; // @codeCoverageIgnore
+        }
+
+        $folder = KINT_DIR.'/vendor';
+
+        for ($i = 0; $i < 4; ++$i) {
+            $installed = $folder.'/composer/installed.json';
+
+            if (\file_exists($installed) && \is_readable($installed)) {
+                $packages = \json_decode(\file_get_contents($installed), true);
+
+                foreach ($packages as $package) {
+                    if (isset($package['extra'][$key]) && \is_array($package['extra'][$key])) {
+                        $extras = \array_replace($extras, $package['extra'][$key]);
+                    }
+                }
+
+                $folder = \dirname($folder);
+
+                if (\file_exists($folder.'/composer.json') && \is_readable($folder.'/composer.json')) {
+                    $composer = \json_decode(\file_get_contents($folder.'/composer.json'), true);
+
+                    if (isset($composer['extra'][$key]) && \is_array($composer['extra'][$key])) {
+                        $extras = \array_replace($extras, $composer['extra'][$key]);
+                    }
+                }
+
+                break;
+            }
+
+            $folder = \dirname($folder);
+        }
+
+        return $extras;
+    }
+
+    /**
+     * @codeCoverageIgnore
+     */
+    public static function composerSkipFlags()
+    {
+        $extras = self::composerGetExtras();
+
+        if (!empty($extras['disable-facade']) && !\defined('KINT_SKIP_FACADE')) {
+            \define('KINT_SKIP_FACADE', true);
+        }
+
+        if (!empty($extras['disable-helpers']) && !\defined('KINT_SKIP_HELPERS')) {
+            \define('KINT_SKIP_HELPERS', true);
+        }
+    }
+
+    public static function isTrace(array $trace)
+    {
+        if (!self::isSequential($trace)) {
+            return false;
+        }
+
+        static $bt_structure = [
+            'function' => 'string',
+            'line' => 'integer',
+            'file' => 'string',
+            'class' => 'string',
+            'object' => 'object',
+            'type' => 'string',
+            'args' => 'array',
+        ];
+
+        $file_found = false;
+
+        foreach ($trace as $frame) {
+            if (!\is_array($frame) || !isset($frame['function'])) {
+                return false;
+            }
+
+            foreach ($frame as $key => $val) {
+                if (!isset($bt_structure[$key])) {
+                    return false;
+                }
+
+                if (\gettype($val) !== $bt_structure[$key]) {
+                    return false;
+                }
+
+                if ('file' === $key) {
+                    $file_found = true;
+                }
+            }
+        }
+
+        return $file_found;
+    }
+
+    public static function traceFrameIsListed(array $frame, array $matches)
+    {
+        if (isset($frame['class'])) {
+            $called = [\strtolower($frame['class']), \strtolower($frame['function'])];
+        } else {
+            $called = \strtolower($frame['function']);
+        }
+
+        return \in_array($called, $matches, true);
+    }
+
+    public static function normalizeAliases(array &$aliases)
+    {
+        static $name_regex = '[a-zA-Z_\\x7f-\\xff][a-zA-Z0-9_\\x7f-\\xff]*';
+
+        foreach ($aliases as $index => &$alias) {
+            if (\is_array($alias) && 2 === \count($alias)) {
+                $alias = \array_values(\array_filter($alias, 'is_string'));
+
+                if (2 === \count($alias) &&
+                    \preg_match('/^'.$name_regex.'$/', $alias[1]) &&
+                    \preg_match('/^\\\\?('.$name_regex.'\\\\)*'.$name_regex.'$/', $alias[0])
+                ) {
+                    $alias = [
+                        \strtolower(\ltrim($alias[0], '\\')),
+                        \strtolower($alias[1]),
+                    ];
+                } else {
+                    unset($aliases[$index]);
+                    continue;
+                }
+            } elseif (\is_string($alias)) {
+                if (\preg_match('/^\\\\?('.$name_regex.'\\\\)*'.$name_regex.'$/', $alias)) {
+                    $alias = \explode('\\', \strtolower($alias));
+                    $alias = \end($alias);
+                } else {
+                    unset($aliases[$index]);
+                    continue;
+                }
+            } else {
+                unset($aliases[$index]);
+            }
+        }
+
+        $aliases = \array_values($aliases);
+    }
+
+    public static function truncateString($input, $length = PHP_INT_MAX, $end = '...', $encoding = false)
+    {
+        $length = (int) $length;
+        $endlength = BlobValue::strlen($end);
+
+        if ($endlength >= $length) {
+            $endlength = 0;
+            $end = '';
+        }
+
+        if (BlobValue::strlen($input, $encoding) > $length) {
+            return BlobValue::substr($input, 0, $length - $endlength, $encoding).$end;
+        }
+
+        return $input;
+    }
+
+    public static function getTypeString(ReflectionType $type)
+    {
+        if ($type instanceof ReflectionNamedType) {
+            $name = $type->getName();
+            if ($type->allowsNull() && false === \strpos($name, '|')) {
+                $name = '?'.$name;
+            }
+
+            return $name;
+        }
+
+        return (string) $type; // @codeCoverageIgnore
+    }
+}