public function __construct()
{
parent::__construct(Config::get('embedly-l4::api_config'));
}
/**
* Via Embedly.
*
* @since 151125 OEmbed utilities.
*
* @param string $string String to parse.
*/
protected function viaEmbedly(string $string) : string
{
# Require a valid API key for Embedly.
if (!$this->App->Config->©embedly['©api_key']) {
throw $this->c::issue('Missing Embedly API key.');
}
# Initialize several variables.
$tokens = $uncached_urls = $new_embeds = [];
$marker = str_replace('.', '', uniqid('', true));
$Embedly = new Embedly(['key' => $this->App->Config->©embedly['©api_key']]);
# Tokenize all URLs on a line of their own.
$string = preg_replace_callback($this::URL_REGEX_VALID . 'm', function ($m) use(&$tokens, &$uncached_urls, $marker) {
$token = '%#%oembed-token-' . $marker . '-' . (count($tokens) - 1) . '%#%';
$tokens[$token] = $uncached_urls[$m[0]] = $m[0];
return $token;
// Replaced w/ unique token.
}, $string);
// Tokenizes all possible embed URLs.
# Replace and flag URLs already cached.
foreach ($tokens as $_token => $_url) {
if (!($_embed = $this->getEmbedlyCache($_url))) {
continue;
// Not cached yet.
}
unset($uncached_urls[$_url]);
// Cached already.
if ($_embed->type === 'error') {
continue;
// Not possible.
} elseif (!empty($_embed->error_code)) {
continue;
// Not possible.
}
if ($_markup = $this->embedlyMarkup($_url, $_embed)) {
$string = str_replace($_token, $_markup, $string);
}
}
// unset($_token, $_url, $_embed, $_markup); // Housekeeping.
# Retrieve embed objects for any uncached URLs now.
for ($_i = 1; $_i <= count($uncached_urls); $_i = $_i + 10) {
$_urls = array_slice($uncached_urls, $_i - 1, 10);
$_urls = array_values($_urls);
$_args = ['urls' => $_urls, 'secure' => true, 'width' => 800, 'maxwidth' => 800, 'wmode' => 'transparent'];
// See: <http://embed.ly/docs/api/embed/arguments>
foreach ($Embedly->oembed($_args) as $_key => $_embed) {
$new_embeds[$_urls[$_key]] = $_embed;
}
// unset($_key, $_embed); // Housekeeping.
}
// unset($_i, $_urls, $_args); // Housekeeping.
# Cache each of the new embeds now, and replace any
# tokens associated w/ new embeds obtained above.
foreach ($new_embeds as $_url => $_embed) {
$this->setEmbedlyCache($_url, $_embed);
if ($_embed->type === 'error') {
continue;
// Not possible.
} elseif (!empty($_embed->error_code)) {
continue;
// Not possible.
}
if ($_markup = $this->embedlyMarkup($_url, $_embed)) {
foreach (array_keys($tokens, $_url, true) as $_token) {
$string = str_replace($_token, $_markup, $string);
}
// unset($_token); // Housekeeping.
}
}
// unset($_url, $_embed, $_markup); // Housekeeping.
# Restore URLs that didn't trigger embeds & return.
foreach (array_reverse($tokens, true) as $_token => $_url) {
$string = str_replace($_token, $_url, $string);
}
// unset($_token, $_url); // Housekeeping.
return $string;
}
