106 lines
2.9 KiB
PHP
106 lines
2.9 KiB
PHP
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<?php
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/*
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* Core PHP Framework
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*
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* Licensed under the European Union Public Licence (EUPL) v1.2.
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* See LICENSE file for details.
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*/
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declare(strict_types=1);
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namespace Core\Helpers;
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use GuzzleHttp\Promise\PromiseInterface;
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use Illuminate\Http\Client\Response;
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use Illuminate\Http\File as HttpFile;
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use Illuminate\Http\UploadedFile;
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use Illuminate\Support\Arr;
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use Illuminate\Support\Facades\Http;
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use Illuminate\Support\Str;
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/**
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* File handling utilities for uploads and remote fetching.
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*
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* Provides helpers for converting base64 to UploadedFile,
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* fetching remote URLs, and extracting filenames from HTTP responses.
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*/
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class File
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{
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/**
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* Convert base64 data URI to UploadedFile instance.
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*
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* Handles data URIs in format: data:mime/type;base64,<encoded_data>
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*/
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public static function fromBase64(string $base64File, ?string $filename = null): UploadedFile
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{
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// Extract base64 data after comma
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$fileData = base64_decode(Arr::last(explode(',', $base64File)));
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// Create temporary file
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$tempFile = tmpfile();
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$tempFilePath = stream_get_meta_data($tempFile)['uri'];
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// Write decoded data to temp file
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file_put_contents($tempFilePath, $fileData);
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$tempFileObject = new HttpFile($tempFilePath);
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$file = new UploadedFile(
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$tempFileObject->getPathname(),
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$filename ?: $tempFileObject->getFilename(),
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$tempFileObject->getMimeType(),
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0,
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true // Mark as test file (not from real HTTP POST)
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);
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// Clean up temp file after request completes
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app()->terminating(function () use ($tempFile) {
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fclose($tempFile);
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});
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return $file;
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}
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/**
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* Fetch content from URL.
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*/
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public static function fetchUrl(string $url, int $timeout = 10): PromiseInterface|Response
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{
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return Http::timeout($timeout)->get($url);
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}
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/**
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* Extract filename from HTTP response headers or URL.
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*
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* Tries Content-Disposition header first, then falls back to URL path.
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*/
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public static function getFilenameFromHttpResponse(
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Response $response,
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?string $fallbackFilename = null
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): string {
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$contentDisposition = $response->header('Content-Disposition');
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if ($contentDisposition) {
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// Try standard filename format
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if (preg_match('/filename="([^"]+)"/', $contentDisposition, $matches)) {
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return $matches[1];
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}
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// Try RFC 5987 encoded filename
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if (preg_match('/filename\*=UTF-8\'\'([^;]+)/', $contentDisposition, $matches)) {
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return rawurldecode($matches[1]);
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}
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}
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// Fall back to URL path
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$urlPath = parse_url($response->effectiveUri(), PHP_URL_PATH);
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if ($urlPath) {
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return basename($urlPath);
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}
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return $fallbackFilename ?: Str::random(40);
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}
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}
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