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<?php |
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namespace Cohensive\OEmbed; |
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use Cohensive\OEmbed\Exceptions\HtmlParsingException; |
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use DOMDocument; |
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class Embed |
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{ |
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const TYPE_OEMBED = 0; |
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const TYPE_REGEX = 1; |
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/** |
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* Type of an Embed object source data - OEmbed or Regex-based. |
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*/ |
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protected int $type; |
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/** |
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* Array of global options applied to embed objects. |
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*/ |
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protected array $options; |
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/** |
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* Original media URL. |
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*/ |
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protected string $url; |
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/** |
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* Embed data extracted via OEmbed or Regex extractors. |
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*/ |
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protected array $data; |
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/** |
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* Class containing Embed HTML code. |
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*/ |
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protected HtmlBuilder $html; |
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/** |
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* Thumbnail data if available. |
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*/ |
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protected ?array $thumbnail; |
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/** |
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* Creates Embed instance. |
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*/ |
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public function __construct( |
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string $type, |
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string $url, |
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array $data, |
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array $options = [], |
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bool $amp = false |
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) { |
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$this->type = $type; |
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$this->url = $url; |
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$this->data = $data; |
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$this->options = $options; |
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$this->amp = $amp; |
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$this->initData(); |
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} |
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/** |
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* Initializer for the Embed object filling thumbnail, html and type based |
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* on a given media provider data. |
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*/ |
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public function initData(): self |
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{ |
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$data = $this->data(); |
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if (isset($data['thumbnail_url'])) { |
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$this->thumbnail = [ |
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'url' => $data['thumbnail_url'], |
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'width' => $data['thumbnail_width'] ?? null, |
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'height' => $data['thumbnail_height'] ?? null, |
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]; |
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} |
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if ($this->type == self::TYPE_OEMBED) { |
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$this->html = $this->extractOEmbedHtml($data['html']); |
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} else { |
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$this->html = $this->extractRegexHtml($data['html']); |
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} |
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return $this; |
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} |
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/** |
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* Returns mbed options. |
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*/ |
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public function getOptions(): array |
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{ |
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return $this->options; |
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} |
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/** |
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* Sets new embed options. See config file 'options' key. |
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*/ |
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public function setOptions(array $options): self |
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{ |
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$this->options = $options; |
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return $this; |
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} |
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/** |
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* Returns provider-specific data options. |
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*/ |
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public function getProviderOptions(): array |
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{ |
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if (isset($this->options['providers'])) { |
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return $this->options['providers'][$this->data['provider_name']]['data'] ?? []; |
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} |
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return []; |
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} |
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/** |
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* Returns provider-specific HTML options. |
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*/ |
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public function getProviderHtmlOptions(): array |
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{ |
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if (isset($this->options['providers'])) { |
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return $this->options['providers'][$this->data['provider_name']]['html'] ?? []; |
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} |
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return []; |
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} |
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/** |
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* Sets AMP mode. |
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*/ |
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public function setAmp(bool $amp): self |
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{ |
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$this->amp = $amp; |
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return $this; |
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} |
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/** |
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* Returns current HtmlBuilder instance. |
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*/ |
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public function htmlBuilder(): HtmlBuilder |
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{ |
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return $this->html; |
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} |
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/** |
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* Returns string with HTML to embed in application. Will return AMP-friendly |
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* HTML if global amp mode is enabled and not overwitten. |
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*/ |
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public function html(array $options = null, ?bool $amp = null): string |
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{ |
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if (is_null($options)) { |
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$options = $this->options; |
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} else { |
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$options = array_merge($this->options, $options); |
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} |
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if (is_null($amp)) { |
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$amp = $this->amp; |
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} |
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return $this->html->html($options, $amp); |
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} |
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/** |
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* Returns string with AMP-friendly HTML to embed in an application. |
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*/ |
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public function ampHtml(array $options = null): string |
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{ |
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return $this->html($options, true); |
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} |
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/** |
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* Return script source if available in embed html. |
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*/ |
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public function script(): ?string |
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{ |
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return $this->html->script(); |
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} |
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/** |
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* Returns embed provider type. |
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*/ |
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public function type(): int |
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{ |
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return $this->type; |
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} |
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/** |
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* Returns embed html type. |
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*/ |
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public function htmlType(): string |
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{ |
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return $this->html->type(); |
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} |
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/** |
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* Returns media provider data. |
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*/ |
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public function url(): string |
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{ |
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return $this->url; |
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} |
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/** |
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* Returns media provider data with applied options if set. |
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*/ |
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public function data(): array |
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{ |
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$data = array_merge($this->data, $this->getProviderOptions()); |
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return $data; |
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} |
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/** |
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* Returns width of the embed. 0 if not set. |
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*/ |
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public function width(): int |
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{ |
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return $this->data()['width'] ?? 0; |
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} |
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/** |
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* Returns height of the embed. 0 if not set. |
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*/ |
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public function height(): int |
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{ |
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return $this->data()['height'] ?? 0; |
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} |
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/** |
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* Returns width/height ratio of the embed. 0 if dimensions are not set. |
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*/ |
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public function ratio(): float |
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{ |
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if (isset($this->data()['width']) && isset($this->data()['height'])) { |
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return $this->data()['width'] / $this->data()['height']; |
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} |
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return 0; |
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} |
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/** |
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* Returns string describing media type. According to OEmbed spec it could be: |
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* one of these: photo, video, link, rich |
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*/ |
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public function mediaType(): string |
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{ |
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return $this->data['type']; |
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} |
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/** |
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* Returns boolean flag telling if given embed data has a thumbnail. |
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*/ |
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public function hasThumbnail(): bool |
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{ |
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return is_array($this->thumbnail); |
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} |
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/** |
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* Returns thumbnail data in an array form containing url and its dimensions. |
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* |
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*/ |
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public function thumbnail(): ?array |
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{ |
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return $this->thumbnail; |
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} |
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/** |
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* Reutrns string for thumbnail or null if it's not set. |
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*/ |
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public function thumbnailUrl(): ?string |
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{ |
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return $this->hasThumbnail() ? $this->thumbnail['url'] : null; |
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} |
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/** |
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* Return thumbnail width or 0 if not set. |
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*/ |
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public function thumbnailWidth(): int |
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{ |
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return $this->hasThumbnail() ? $this->thumbnail['width'] : 0; |
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} |
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/** |
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* Return thumbnail height or 0 if not set. |
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*/ |
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public function thumbnailHeight(): int |
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{ |
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return $this->hasThumbnail() ? $this->thumbnail['height'] : 0; |
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} |
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/** |
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* Converts Embed instance into an array for caching. |
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*/ |
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public function toArray(): array |
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{ |
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return [ |
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'type' => $this->type, |
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'url' => $this->url, |
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'data' => $this->data, |
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]; |
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} |
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/** |
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* Converts Embed instance into json string. |
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*/ |
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public function toJson(): string |
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{ |
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return json_encode($this->toArray()); |
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} |
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/** |
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* Returns HtmlBuilder instance of OEmbed media provider HTML string. |
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*/ |
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protected function extractOEmbedHtml(string $html): HtmlBuilder |
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{ |
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$script = null; |
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$doc = new DOMDocument(); |
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$doc->loadHTML("<html><body>$html</body></html>", LIBXML_NOERROR); |
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$body = $doc->documentElement->lastChild; |
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$scripts = $body->getElementsByTagName('script'); |
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foreach ($scripts as $node) { |
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$script = $node->getAttribute('src'); |
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break; |
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} |
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if (!$body->firstChild) { |
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throw new HtmlParsingException(); |
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} |
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if ($body->firstChild && $body->firstChild->nodeName === 'iframe') { |
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$attrs = []; |
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foreach ($body->firstChild->attributes as $attribute) { |
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$attrs[$attribute->name] = $attribute->value; |
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} |
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$attrs = array_merge($attrs, $this->getProviderHtmlOptions()); |
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return new HtmlBuilder(HtmlBuilder::TYPE_IFRAME, $attrs, $script); |
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} |
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return new HtmlBuilder(HtmlBuilder::TYPE_RAW, $html, $script); |
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} |
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/** |
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* Returns HtmlBuilder instance of Regex media provider HTML string. |
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*/ |
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protected function extractRegexHtml(array $html): HtmlBuilder |
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{ |
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$type = array_key_first($html); |
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return new HtmlBuilder($type, $html[$type]); |
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} |
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} |
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