init backend presensi
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mwpn
236
app/Modules/Face/Controllers/FaceController.php
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236
app/Modules/Face/Controllers/FaceController.php
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<?php
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namespace App\Modules\Face\Controllers;
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use App\Core\BaseApiController;
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use App\Modules\Academic\Models\StudentModel;
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use App\Modules\Face\Models\StudentFaceModel;
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use App\Modules\Face\Services\FaceService;
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use CodeIgniter\HTTP\ResponseInterface;
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class FaceController extends BaseApiController
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{
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/**
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* POST /api/face/import-formal
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* Body: {
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* "items": [
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* { "student_id": 123, "url": "https://..." },
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* ...
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* ]
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* }
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*
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* Admin-only (protected by filter admin_only).
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*/
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public function importFormal(): ResponseInterface
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{
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$payload = $this->request->getJSON(true) ?? [];
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$items = $payload['items'] ?? [];
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if (! is_array($items) || $items === []) {
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return $this->errorResponse('items wajib berupa array', null, null, ResponseInterface::HTTP_UNPROCESSABLE_ENTITY);
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}
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$studentModel = new StudentModel();
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$faceModel = new StudentFaceModel();
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$faceService = new FaceService();
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$success = 0;
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$fail = 0;
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$errors = [];
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foreach ($items as $item) {
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$studentId = (int) ($item['student_id'] ?? 0);
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$url = trim((string) ($item['url'] ?? ''));
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if ($studentId < 1 || $url === '') {
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$fail++;
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$errors[] = [
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'student_id' => $studentId,
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'url' => $url,
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'reason' => 'student_id dan url wajib diisi',
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];
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continue;
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}
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$student = $studentModel->find($studentId);
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if (! $student) {
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$fail++;
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$errors[] = [
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'student_id' => $studentId,
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'url' => $url,
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'reason' => 'Siswa tidak ditemukan',
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];
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continue;
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}
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$tmpFile = tempnam(sys_get_temp_dir(), 'face_');
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try {
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$imgData = @file_get_contents($url);
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if ($imgData === false) {
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throw new \RuntimeException('Gagal mengunduh gambar dari URL');
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}
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file_put_contents($tmpFile, $imgData);
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$result = $faceService->extractEmbeddingWithQuality($tmpFile);
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$faceModel->insert([
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'student_id' => $studentId,
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'embedding' => json_encode($result['embedding']),
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'source' => 'formal',
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'quality_score' => $result['quality_score'],
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]);
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// Simpan URL formal di tabel students
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$studentModel->update($studentId, ['photo_formal_url' => $url]);
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$success++;
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} catch (\Throwable $e) {
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$fail++;
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$errors[] = [
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'student_id' => $studentId,
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'url' => $url,
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'reason' => $e->getMessage(),
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];
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} finally {
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if (is_file($tmpFile)) {
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@unlink($tmpFile);
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}
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}
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}
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return $this->successResponse([
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'success_count' => $success,
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'fail_count' => $fail,
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'errors' => $errors,
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], 'Import foto formal selesai');
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}
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/**
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* POST /api/face/enroll-live
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* Body: {
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* "student_id": 123,
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* "images": ["data:image/jpeg;base64,...", "..."]
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* }
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*
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* Dipanggil saat aktivasi dari device (3–5 frame).
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*/
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public function enrollLive(): ResponseInterface
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{
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$payload = $this->request->getJSON(true) ?? [];
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$studentId = (int) ($payload['student_id'] ?? 0);
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$images = $payload['images'] ?? [];
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if ($studentId < 1) {
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return $this->errorResponse('student_id wajib diisi', null, null, ResponseInterface::HTTP_UNPROCESSABLE_ENTITY);
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}
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if (! is_array($images) || count($images) < 1) {
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return $this->errorResponse('images wajib berisi minimal 1 item', null, null, ResponseInterface::HTTP_UNPROCESSABLE_ENTITY);
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}
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$studentModel = new StudentModel();
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$student = $studentModel->find($studentId);
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if (! $student) {
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return $this->errorResponse('Siswa tidak ditemukan', null, null, ResponseInterface::HTTP_NOT_FOUND);
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}
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$faceModel = new StudentFaceModel();
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$faceService = new FaceService();
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$embeddings = [];
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$saved = 0;
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$errors = [];
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foreach ($images as $idx => $imgData) {
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$tmpFile = tempnam(sys_get_temp_dir(), 'live_');
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try {
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$raw = $this->decodeBase64Image($imgData);
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if ($raw === null) {
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throw new \RuntimeException('Format gambar tidak valid (harus base64)');
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}
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file_put_contents($tmpFile, $raw);
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$result = $faceService->extractEmbeddingWithQuality($tmpFile);
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$embeddings[] = $result['embedding'];
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$faceModel->insert([
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'student_id' => $studentId,
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'embedding' => json_encode($result['embedding']),
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'source' => 'live',
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'quality_score' => $result['quality_score'],
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]);
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$saved++;
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} catch (\Throwable $e) {
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$errors[] = [
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'index' => $idx,
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'reason' => $e->getMessage(),
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];
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} finally {
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if (is_file($tmpFile)) {
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@unlink($tmpFile);
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}
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}
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}
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// Optional: simpan embedding rata-rata sebagai live_avg jika ada cukup sample
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if (count($embeddings) >= 2) {
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$avg = $this->averageEmbedding($embeddings);
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$faceModel->insert([
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'student_id' => $studentId,
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'embedding' => json_encode($avg),
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'source' => 'live_avg',
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'quality_score' => null,
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]);
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}
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return $this->successResponse([
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'student_id' => $studentId,
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'saved' => $saved,
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'errors' => $errors,
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], 'Enrollment live selesai');
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}
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/**
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* Hitung rata-rata beberapa embedding (elemen per elemen).
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*
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* @param array<int, array<int,float>> $vectors
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* @return float[]
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*/
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protected function averageEmbedding(array $vectors): array
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{
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$count = count($vectors);
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if ($count === 0) {
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return [];
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}
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$dim = count($vectors[0]);
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$sum = array_fill(0, $dim, 0.0);
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foreach ($vectors as $vec) {
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for ($i = 0; $i < $dim; $i++) {
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$sum[$i] += (float) $vec[$i];
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}
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}
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for ($i = 0; $i < $dim; $i++) {
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$sum[$i] /= $count;
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}
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return $sum;
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}
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/**
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* Decode string base64 (data URL atau plain base64) ke binary.
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*/
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protected function decodeBase64Image(string $input): ?string
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{
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$input = trim($input);
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if ($input === '') {
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return null;
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}
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if (strpos($input, 'base64,') !== false) {
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$parts = explode('base64,', $input, 2);
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$input = $parts[1];
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}
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$data = base64_decode($input, true);
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return $data === false ? null : $data;
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}
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}
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