43 lines
1.4 KiB
PHP
43 lines
1.4 KiB
PHP
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<?php
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declare(strict_types=1);
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namespace App\Services\Micropub;
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use App\Exceptions\MicropubUnsupportedModelException;
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use App\Models\Note;
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use Illuminate\Database\Eloquent\ModelNotFoundException;
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use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
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/**
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* Finds the note a Micropub request refers to by its URL.
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*/
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class NoteResolver
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{
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/**
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* @throws MicropubUnsupportedModelException if the URL is not a note on this site
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* @throws ModelNotFoundException if no such note exists
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*/
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public function fromUrl(string $url): Note
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{
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$host = parse_url($url, PHP_URL_HOST);
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$ourHost = parse_url((string) config('app.url'), PHP_URL_HOST);
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if (! is_string($host) || ! is_string($ourHost) || strcasecmp($host, $ourHost) !== 0) {
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throw new MicropubUnsupportedModelException('The URL is not a post on this site');
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}
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$path = (string) parse_url($url, PHP_URL_PATH);
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if (preg_match('#^/notes/([0-9A-Za-z_]+)/?$#', $path, $matches) !== 1) {
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throw new MicropubUnsupportedModelException('This implementation currently only supports notes');
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}
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try {
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return Note::nb60($matches[1])->firstOrFail();
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} catch (NotFoundHttpException) {
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// Note::scopeNb60() aborts when the ID is too big for the database
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throw (new ModelNotFoundException)->setModel(Note::class);
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}
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}
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}
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