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<?php |
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namespace alkemann\h2l\response; |
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use alkemann\h2l\Message; |
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use alkemann\h2l\Response; |
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use alkemann\h2l\util\Http; |
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/** |
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* Class Html |
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* |
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* Content should be either a rendered HTML string or an object that when cast to string renders the HTML. |
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* Also a slim templateing system is provided. You can use this by sending an array as content, but the |
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* array must follow some strict rules. The first value (no key), should be the template string. Any key/value |
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* pair added to this array will be applied as replacements in the template in the following manner: |
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* |
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* - The content key must be a unique string name, like `city` |
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* - The place in the template must be prefixed with `{:` and end with `}`, i.e. `{:city} |
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* |
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* Example: |
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* |
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* ```php |
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* Router::add('|city/(?<city>\w+)|', function(Request $request): Html { |
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* $template = <<<TEM |
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* <html> |
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* <head> |
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* <title>{:name}</title> |
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* </head> |
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* <body> |
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* <h1>City {:name}</h1> |
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* <p>On {:street}</p> |
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* </body> |
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* </html> |
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* TEM; |
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* |
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* $data = [ |
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* $template, |
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* 'name' => $r->param('city'), |
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* 'street' => 'Mainstreet', |
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* ]; |
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* return new Html($data, 200); |
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* |
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* } |
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* ``` |
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* |
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* Going to localhost/city/Oslo, will render as: |
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* |
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* ``` |
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* <html> |
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* <head> |
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* <title>Oslo</title> |
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* </head> |
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* <body> |
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* <h1>City Oslo</h1> |
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* <p>On Mainstreet</p> |
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* </body> |
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* </html> |
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* ``` |
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* |
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* @package alkemann\h2l |
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*/ |
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class Html extends Response |
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{ |
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/** |
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* @param string|mixed $content HTML. Objects will be cast, arrays will render template |
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* @param int $code HTTP code to respond with, defaults to `200` |
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* @param array $config inject config/overrides like `header_func` |
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*/ |
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public function __construct($content = null, int $code = Http::CODE_OK, array $config = []) |
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{ |
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if (is_string($content) === false) { |
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$content = $this->convertToString($content, $config); |
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} |
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$this->config = $config; |
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$this->message = (new Message()) |
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->withCode($code) |
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->withHeaders([ |
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'Content-Type' => Http::CONTENT_HTML |
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]) |
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->withBody($content) |
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; |
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} |
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private function convertToString($content, array $config = []): string |
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{ |
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if (is_array($content) == false) { |
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return (string) $content; |
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} |
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reset($content); |
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$template = array_shift($content); |
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$replace = []; |
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foreach ($content as $name => $value) { |
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$replace["{:$name}"] = $value; |
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} |
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return strtr($template, $replace); |
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} |
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/** |
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* Set header and return a string rendered and ready to be echo'ed as response |
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* |
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* Header 'Content-type:' will be set using `header` or an injeced 'header_func' through constructor |
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*/ |
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public function render(): string |
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{ |
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$this->setHeaders(); |
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return $this->message->body(); |
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} |
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} |
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alkemann /
h2l
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