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<?php namespace GeneaLabs\LaravelCaffeine\Http\Middleware; |
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use Closure; |
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use GeneaLabs\LaravelCaffeine\Dripper; |
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use Illuminate\Http\Request; |
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class LaravelCaffeineDripMiddleware |
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{ |
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public function handle(Request $request, Closure $next) |
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{ |
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$response = $next($request); |
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$content = $response->getContent(); |
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if (! is_string($content) || strlen(trim($content)) === 0) { |
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return $response; |
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} |
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$shouldDripRegexp = $this->makeRegex([ |
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'<meta\s+', |
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'(name\s*=\s*[\'"]caffeinated[\'"]\s+content\s*=\s*[\'"]false[\'"]', |
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'|content\s*=\s*[\'"]false[\'"]\s+name\s*=\s*[\'"]caffeinated[\'"])', |
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]); |
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$shouldNotDrip = preg_match($shouldDripRegexp, $content); |
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if ($shouldNotDrip) { |
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return $response; |
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} |
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$formTokenRegexp = $this->makeRegex([ |
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"<input.*?name\s*=\s*[\'\"]_token[\'\"]", |
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]); |
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$metaTokenRegexp = $this->makeRegex([ |
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"<meta.*?name\s*=\s*[\'\"]csrf[_-]token[\'\"]", |
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]); |
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$hasNoFormToken = ! preg_match($formTokenRegexp, $content); |
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$hasNoMetaToken = ! preg_match($metaTokenRegexp, $content); |
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if ($hasNoFormToken && $hasNoMetaToken) { |
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return $response; |
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} |
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$dripper = (new Dripper); |
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$content = preg_replace('/(<\/html>)\s*\z/', $dripper->html . "</html>", $content); |
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if (! preg_match_all('/(<\/html>)\s*\z/', $content, $matches)) { |
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$content .= $dripper->html; |
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} |
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$original = $response->original; |
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$response->setContent($content); |
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$response->original = $original; |
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return $response; |
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} |
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protected function makeRegex(array $regexp) : string |
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{ |
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return '/' . implode('', $regexp) . '/'; |
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} |
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} |
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GeneaLabs /
laravel-caffeine
