RichRenderer::shouldPreRender()   A
last analyzed

Complexity

Conditions 2
Paths 2

Size

Total Lines 3
Code Lines 1

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 2
eloc 1
nc 2
nop 0
dl 0
loc 3
rs 10
c 0
b 0
f 0
1
<?php
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declare(strict_types=1);
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/*
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 * The MIT License (MIT)
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 *
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 * Copyright (c) 2013 Jonathan Vollebregt ([email protected]), Rokas Šleinius ([email protected])
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy of
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 * this software and associated documentation files (the "Software"), to deal in
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 * the Software without restriction, including without limitation the rights to
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 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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 * the Software, and to permit persons to whom the Software is furnished to do so,
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 * subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in all
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 * copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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 */
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namespace Kint\Renderer;
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use Kint\Renderer\Rich\TabPluginInterface;
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use Kint\Renderer\Rich\ValuePluginInterface;
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use Kint\Utils;
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use Kint\Value\AbstractValue;
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use Kint\Value\Context\ClassDeclaredContext;
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use Kint\Value\Context\ContextInterface;
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use Kint\Value\Context\PropertyContext;
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use Kint\Value\InstanceValue;
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use Kint\Value\Representation;
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use Kint\Value\Representation\ContainerRepresentation;
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use Kint\Value\Representation\RepresentationInterface;
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use Kint\Value\Representation\StringRepresentation;
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use Kint\Value\Representation\ValueRepresentation;
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use Kint\Value\StringValue;
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/**
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 * @psalm-import-type Encoding from StringValue
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 */
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class RichRenderer extends AbstractRenderer
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{
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    use AssetRendererTrait;
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    /**
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     * RichRenderer value plugins should implement ValuePluginInterface.
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     *
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     * @psalm-var class-string<ValuePluginInterface>[]
56
     */
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    public static array $value_plugins = [
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        'array_limit' => Rich\LockPlugin::class,
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        'blacklist' => Rich\LockPlugin::class,
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        'callable' => Rich\CallablePlugin::class,
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        'color' => Rich\ColorPlugin::class,
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        'depth_limit' => Rich\LockPlugin::class,
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        'recursion' => Rich\LockPlugin::class,
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        'trace_frame' => Rich\TraceFramePlugin::class,
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    ];
66
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    /**
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     * RichRenderer tab plugins should implement TabPluginInterface.
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     *
70
     * @psalm-var array<string, class-string<TabPluginInterface>>
71
     */
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    public static array $tab_plugins = [
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        'binary' => Rich\BinaryPlugin::class,
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        'callable' => Rich\CallableDefinitionPlugin::class,
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        'color' => Rich\ColorPlugin::class,
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        'microtime' => Rich\MicrotimePlugin::class,
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        'profiling' => Rich\ProfilePlugin::class,
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        'source' => Rich\SourcePlugin::class,
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        'table' => Rich\TablePlugin::class,
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    ];
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    public static array $pre_render_sources = [
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        'script' => [
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            [self::class, 'renderJs'],
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        ],
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        'style' => [
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            [self::class, 'renderCss'],
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        ],
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        'raw' => [],
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    ];
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    /**
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     * The maximum length of a string before it is truncated.
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     *
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     * Falsey to disable
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     */
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    public static int $strlen_max = 80;
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    /**
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     * Timestamp to print in footer in date() format.
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     */
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    public static ?string $timestamp = null;
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    /**
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     * Whether or not to render access paths.
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     *
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     * Access paths can become incredibly heavy with very deep and wide
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     * structures. Given mostly public variables it will typically make
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     * up one quarter of the output HTML size.
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     *
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     * If this is an unacceptably large amount and your browser is groaning
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     * under the weight of the access paths - your first order of buisiness
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     * should be to get a new browser. Failing that, use this to turn them off.
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     */
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    public static bool $access_paths = true;
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    /**
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     * Assume types and sizes don't need to be escaped.
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     *
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     * Turn this off if you use anything but ascii in your class names,
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     * but it'll cause a slowdown of around 10%
122
     */
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    public static bool $escape_types = false;
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    /**
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     * Move all dumps to a folder at the bottom of the body.
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     */
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    public static bool $folder = false;
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    public static bool $needs_pre_render = true;
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    public static bool $always_pre_render = false;
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    protected array $plugin_objs = [];
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    protected bool $expand = false;
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    protected bool $force_pre_render = false;
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    protected bool $use_folder = false;
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    public function __construct()
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    {
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        parent::__construct();
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        self::$theme ??= 'original.css';
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        $this->use_folder = self::$folder;
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        $this->force_pre_render = self::$always_pre_render;
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    }
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    public function setCallInfo(array $info): void
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    {
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        parent::setCallInfo($info);
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        if (\in_array('!', $info['modifiers'], true)) {
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            $this->expand = true;
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            $this->use_folder = false;
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        }
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        if (\in_array('@', $info['modifiers'], true)) {
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            $this->force_pre_render = true;
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        }
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    }
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    public function setStatics(array $statics): void
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    {
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        parent::setStatics($statics);
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        if (!empty($statics['expanded'])) {
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            $this->expand = true;
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        }
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        if (!empty($statics['return'])) {
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            $this->force_pre_render = true;
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        }
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    }
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    public function shouldPreRender(): bool
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    {
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        return $this->force_pre_render || self::$needs_pre_render;
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    }
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    public function render(AbstractValue $v): string
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    {
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        $render_spl_ids_stash = $this->render_spl_ids;
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        if ($this->render_spl_ids && $v->flags & AbstractValue::FLAG_GENERATED) {
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            $this->render_spl_ids = false;
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        }
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        if ($plugin = $this->getValuePlugin($v)) {
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            $output = $plugin->renderValue($v);
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            if (null !== $output && \strlen($output)) {
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                if (!$this->render_spl_ids && $render_spl_ids_stash) {
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                    $this->render_spl_ids = true;
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                }
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                return $output;
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            }
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        }
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        $children = $this->renderChildren($v);
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        $header = $this->renderHeaderWrapper($v->getContext(), (bool) \strlen($children), $this->renderHeader($v));
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        if (!$this->render_spl_ids && $render_spl_ids_stash) {
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            $this->render_spl_ids = true;
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        }
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        return '<dl>'.$header.$children.'</dl>';
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    }
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    public function renderHeaderWrapper(ContextInterface $c, bool $has_children, string $contents): string
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    {
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        $out = '<dt';
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        if ($has_children) {
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            $out .= ' class="kint-parent';
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            if ($this->expand) {
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                $out .= ' kint-show';
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            }
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            $out .= '"';
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        }
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        $out .= '>';
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        if (self::$access_paths && $c->getDepth() > 0 && null !== ($ap = $c->getAccessPath())) {
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            $out .= '<span class="kint-access-path-trigger" title="Show access path"></span>';
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        }
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        if ($has_children) {
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            if (0 === $c->getDepth()) {
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                if (!$this->use_folder) {
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                    $out .= '<span class="kint-folder-trigger" title="Move to folder"></span>';
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                }
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                $out .= '<span class="kint-search-trigger" title="Show search box"></span>';
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                $out .= '<input type="text" class="kint-search" value="">';
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            }
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            $out .= '<nav></nav>';
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        }
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        $out .= $contents;
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        if (!empty($ap)) {
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            $out .= '<div class="access-path">'.$this->escape($ap).'</div>';
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        }
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        return $out.'</dt>';
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    }
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    public function renderHeader(AbstractValue $v): string
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    {
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        $c = $v->getContext();
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        $output = '';
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        if ($c instanceof ClassDeclaredContext) {
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            $output .= '<var>'.$c->getModifiers().'</var> ';
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        }
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        $output .= '<dfn>'.$this->escape($v->getDisplayName()).'</dfn> ';
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        if ($c instanceof PropertyContext && null !== ($s = $c->getHooks())) {
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            $output .= '<var>'.$this->escape($s).'</var> ';
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        }
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        if (null !== ($s = $c->getOperator())) {
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            $output .= $this->escape($s, 'ASCII').' ';
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        }
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        $s = $v->getDisplayType();
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        if (self::$escape_types) {
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            $s = $this->escape($s);
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        }
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        if ($c->isRef()) {
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            $s = '&amp;'.$s;
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        }
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        $output .= '<var>'.$s.'</var>';
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        if ($v instanceof InstanceValue && $this->shouldRenderObjectIds()) {
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            $output .= '#'.$v->getSplObjectId();
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        }
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        $output .= ' ';
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        if (null !== ($s = $v->getDisplaySize())) {
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            if (self::$escape_types) {
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                $s = $this->escape($s);
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            }
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            $output .= '('.$s.') ';
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        }
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        if (null !== ($s = $v->getDisplayValue())) {
0 ignored issues
show
introduced by
The condition null !== $s = $v->getDisplayValue() is always false.
Loading history...
Bug introduced by
Are you sure the assignment to $s is correct as $v->getDisplayValue() targeting Kint\Value\AbstractValue::getDisplayValue() seems to always return null.

This check looks for function or method calls that always return null and whose return value is assigned to a variable.

class A
{
    function getObject()
    {
        return null;
    }

}

$a = new A();
$object = $a->getObject();

The method getObject() can return nothing but null, so it makes no sense to assign that value to a variable.

The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.

Loading history...
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            $s = \preg_replace('/\\s+/', ' ', $s);
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            if (self::$strlen_max) {
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                $s = Utils::truncateString($s, self::$strlen_max);
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            }
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            $output .= $this->escape($s);
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        }
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        return \trim($output);
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    }
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    public function renderChildren(AbstractValue $v): string
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    {
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        $contents = [];
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        $tabs = [];
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        foreach ($v->getRepresentations() as $rep) {
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            $result = $this->renderTab($v, $rep);
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            if (\strlen($result)) {
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                $contents[] = $result;
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                $tabs[] = $rep;
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            }
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        }
317
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        if (empty($tabs)) {
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            return '';
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        }
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        $output = '<dd>';
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        if (1 === \count($tabs) && $tabs[0]->labelIsImplicit()) {
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            $output .= \reset($contents);
326
        } else {
327
            $output .= '<ul class="kint-tabs">';
328
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            foreach ($tabs as $i => $tab) {
330
                if (0 === $i) {
331
                    $output .= '<li class="kint-active-tab">';
332
                } else {
333
                    $output .= '<li>';
334
                }
335
336
                $output .= $this->escape($tab->getLabel()).'</li>';
337
            }
338
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            $output .= '</ul><ul class="kint-tab-contents">';
340
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            foreach ($contents as $i => $tab) {
342
                if (0 === $i) {
343
                    $output .= '<li class="kint-show">';
344
                } else {
345
                    $output .= '<li>';
346
                }
347
348
                $output .= $tab.'</li>';
349
            }
350
351
            $output .= '</ul>';
352
        }
353
354
        return $output.'</dd>';
355
    }
356
357
    public function preRender(): string
358
    {
359
        $output = '';
360
361
        if ($this->shouldPreRender()) {
362
            foreach (self::$pre_render_sources as $type => $values) {
363
                $contents = '';
364
                foreach ($values as $v) {
365
                    $contents .= \call_user_func($v, $this);
366
                }
367
368
                if (!\strlen($contents)) {
369
                    continue;
370
                }
371
372
                switch ($type) {
373
                    case 'script':
374
                        $output .= '<script class="kint-rich-script"';
375
                        if (null !== self::$js_nonce) {
376
                            $output .= ' nonce="'.\htmlspecialchars(self::$js_nonce).'"';
377
                        }
378
                        $output .= '>'.$contents.'</script>';
379
                        break;
380
                    case 'style':
381
                        $output .= '<style class="kint-rich-style"';
382
                        if (null !== self::$css_nonce) {
383
                            $output .= ' nonce="'.\htmlspecialchars(self::$css_nonce).'"';
384
                        }
385
                        $output .= '>'.$contents.'</style>';
386
                        break;
387
                    default:
388
                        $output .= $contents;
389
                }
390
            }
391
392
            // Don't pre-render on every dump
393
            if (!$this->force_pre_render) {
394
                self::$needs_pre_render = false;
395
            }
396
        }
397
398
        $output .= '<div class="kint-rich';
399
400
        if ($this->use_folder) {
401
            $output .= ' kint-file';
402
        }
403
404
        $output .= '">';
405
406
        return $output;
407
    }
408
409
    public function postRender(): string
410
    {
411
        if (!$this->show_trace) {
412
            return '</div>';
413
        }
414
415
        $output = '<footer';
416
417
        if ($this->expand) {
418
            $output .= ' class="kint-show"';
419
        }
420
421
        $output .= '>';
422
423
        if (!$this->use_folder) {
424
            $output .= '<span class="kint-folder-trigger" title="Move to folder">&mapstodown;</span>';
425
        }
426
427
        if (!empty($this->trace) && \count($this->trace) > 1) {
428
            $output .= '<nav></nav>';
429
        }
430
431
        $output .= $this->calledFrom();
432
433
        if (!empty($this->trace) && \count($this->trace) > 1) {
434
            $output .= '<ol>';
435
            foreach ($this->trace as $index => $step) {
436
                if (!$index) {
437
                    continue;
438
                }
439
440
                $output .= '<li>'.$this->ideLink($step['file'], $step['line']); // closing tag not required
441
                if (isset($step['function']) &&
442
                    !\in_array($step['function'], ['include', 'include_once', 'require', 'require_once'], true)
443
                ) {
444
                    $output .= ' [';
445
                    $output .= $step['class'] ?? '';
446
                    $output .= $step['type'] ?? '';
447
                    $output .= $step['function'].'()]';
448
                }
449
            }
450
            $output .= '</ol>';
451
        }
452
453
        $output .= '</footer></div>';
454
455
        return $output;
456
    }
457
458
    /**
459
     * @psalm-param Encoding $encoding
460
     */
461
    public function escape(string $string, $encoding = false): string
462
    {
463
        if (false === $encoding) {
464
            $encoding = Utils::detectEncoding($string);
465
        }
466
467
        $original_encoding = $encoding;
468
469
        if (false === $encoding || 'ASCII' === $encoding) {
470
            $encoding = 'UTF-8';
471
        }
472
473
        $string = \htmlspecialchars($string, ENT_NOQUOTES, $encoding);
474
475
        // this call converts all non-ASCII characters into numeirc htmlentities
476
        if (\function_exists('mb_encode_numericentity') && 'ASCII' !== $original_encoding) {
477
            $string = \mb_encode_numericentity($string, [0x80, 0xFFFF, 0, 0xFFFF], $encoding);
478
        }
479
480
        return $string;
481
    }
482
483
    public function ideLink(string $file, int $line): string
484
    {
485
        $path = $this->escape(Utils::shortenPath($file)).':'.$line;
486
        $ideLink = self::getFileLink($file, $line);
487
488
        if (null === $ideLink) {
489
            return $path;
490
        }
491
492
        return '<a href="'.$this->escape($ideLink).'">'.$path.'</a>';
493
    }
494
495
    protected function calledFrom(): string
496
    {
497
        $output = '';
498
499
        if (isset($this->callee['file'])) {
500
            $output .= ' '.$this->ideLink(
501
                $this->callee['file'],
502
                $this->callee['line']
503
            );
504
        }
505
506
        if (
507
            isset($this->callee['function']) &&
508
            (
509
                !empty($this->callee['class']) ||
510
                !\in_array(
511
                    $this->callee['function'],
512
                    ['include', 'include_once', 'require', 'require_once'],
513
                    true
514
                )
515
            )
516
        ) {
517
            $output .= ' [';
518
            $output .= $this->callee['class'] ?? '';
519
            $output .= $this->callee['type'] ?? '';
520
            $output .= $this->callee['function'].'()]';
521
        }
522
523
        if ('' !== $output) {
524
            $output = 'Called from'.$output;
525
        }
526
527
        if (null !== self::$timestamp) {
528
            $output .= ' '.\date(self::$timestamp);
529
        }
530
531
        return $output;
532
    }
533
534
    protected function renderTab(AbstractValue $v, RepresentationInterface $rep): string
535
    {
536
        if ($plugin = $this->getTabPlugin($rep)) {
537
            $output = $plugin->renderTab($rep, $v);
538
            if (null !== $output) {
539
                return $output;
540
            }
541
        }
542
543
        if ($rep instanceof ValueRepresentation) {
544
            return $this->render($rep->getValue());
545
        }
546
547
        if ($rep instanceof ContainerRepresentation) {
548
            $output = '';
549
550
            foreach ($rep->getContents() as $obj) {
551
                $output .= $this->render($obj);
552
            }
553
554
            return $output;
555
        }
556
557
        if ($rep instanceof StringRepresentation) {
558
            // If we're dealing with the content representation
559
            if ($v instanceof StringValue && $rep->getValue() === $v->getValue()) {
560
                // Only show the contents if:
561
                if (\preg_match('/(:?[\\r\\n\\t\\f\\v]| {2})/', $rep->getValue())) {
562
                    // We have unrepresentable whitespace (Without whitespace preservation)
563
                    $show_contents = true;
564
                } elseif (self::$strlen_max && Utils::strlen($v->getDisplayValue()) > self::$strlen_max) {
565
                    // We had to truncate getDisplayValue
566
                    $show_contents = true;
567
                } else {
568
                    $show_contents = false;
569
                }
570
            } else {
571
                $show_contents = true;
572
            }
573
574
            if ($show_contents) {
575
                return '<pre>'.$this->escape($rep->getValue())."\n</pre>";
576
            }
577
        }
578
579
        return '';
580
    }
581
582
    protected function getValuePlugin(AbstractValue $v): ?ValuePluginInterface
583
    {
584
        $hint = $v->getHint();
585
586
        if (null === $hint || !isset(self::$value_plugins[$hint])) {
587
            return null;
588
        }
589
590
        $plugin = self::$value_plugins[$hint];
591
592
        if (!\is_a($plugin, ValuePluginInterface::class, true)) {
593
            return null;
594
        }
595
596
        if (!isset($this->plugin_objs[$plugin])) {
597
            $this->plugin_objs[$plugin] = new $plugin($this);
598
        }
599
600
        return $this->plugin_objs[$plugin];
601
    }
602
603
    protected function getTabPlugin(RepresentationInterface $r): ?TabPluginInterface
604
    {
605
        $hint = $r->getHint();
606
607
        if (null === $hint || !isset(self::$tab_plugins[$hint])) {
608
            return null;
609
        }
610
611
        $plugin = self::$tab_plugins[$hint];
612
613
        if (!\is_a($plugin, TabPluginInterface::class, true)) {
614
            return null;
615
        }
616
617
        if (!isset($this->plugin_objs[$plugin])) {
618
            $this->plugin_objs[$plugin] = new $plugin($this);
619
        }
620
621
        return $this->plugin_objs[$plugin];
622
    }
623
}
624