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76 lines
2.9 KiB
PHP
76 lines
2.9 KiB
PHP
<?php
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namespace App\Http\Traits;
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use Illuminate\Validation\ValidationException;
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use Illuminate\Http\UploadedFile;
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use Illuminate\Support\Arr;
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use Illuminate\Support\Collection;
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use Illuminate\Support\Str;
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use Illuminate\Support\Facades\Log;
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trait ConvertsBase64ToFiles
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{
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protected function base64FileKeys(): array
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{
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return [];
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}
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/**
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* Pulls the Base64 contents for each file key and creates
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* an UploadedFile instance from it and sets it on the
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* request.
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*
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* @return void
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*/
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protected function prepareForValidation()
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{
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$flattened = Arr::dot($this->base64FileKeys());
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Collection::make($flattened)->each(function ($filename, $key) {
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rescue(function () use ($key, $filename) {
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// dont process plain files
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if ( $this->file($key)){
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return;
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}
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$base64Contents = $this->input($key);
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if (!$base64Contents) {
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return;
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}
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// Generate a temporary path to store the Base64 contents
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$tempFilePath = tempnam(sys_get_temp_dir(), $filename);
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// Store the contents using a stream, or throw an Error (which doesn't do anything?)
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if (Str::startsWith($base64Contents, 'data:') && count(explode(',', $base64Contents)) > 1) {
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$source = fopen($base64Contents, 'r'); // PHP has special processing for "data:" URL's
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$destination = fopen($tempFilePath, 'w');
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stream_copy_to_stream($source, $destination);
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fclose($source);
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fclose($destination);
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} else {
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// TODO - to get a better error message here, can we maybe do something with modifying the errorBag?
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throw new ValidationException("Need Base64 URL starting with 'data:'"); // This doesn't actually throw?
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}
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$uploadedFile = new UploadedFile($tempFilePath, $filename, null, null, true);
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Log::debug("Trait: uploadedfile ". $tempFilePath);
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$this->offsetUnset($key);
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Log::debug("Trait: encoded field \"$key\" removed" );
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//Inserting new file to $this-files does not work so have to deal this after
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$this->offsetSet($key,$uploadedFile);
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Log::debug("Trait: field \"$key\" inserted as UplodedFile" );
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}, null, false);
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});
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}
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}
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/**
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* Loosely based on idea https://github.com/protonemedia/laravel-mixins/tree/master/src/Request
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* */
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