389 lines
13 KiB
PHP
389 lines
13 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Steuerkram\Services;
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use Steuerkram\Database;
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use Steuerkram\Models\Beleg;
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use Steuerkram\Models\EventLog;
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use Steuerkram\Models\Setting;
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/**
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* Importiert Belege aus einem Nextcloud-Ordner via WebDAV.
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*
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* Konfiguration über Einstellungen → Nextcloud-Belegimport (gespeichert in company_settings):
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* nextcloud_url – Basis-URL der Nextcloud, z.B. https://cloud.example.com
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* nextcloud_user – Benutzername
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* nextcloud_pass – Passwort oder App-Passwort
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* nextcloud_folder – Pfad zum Import-Ordner, z.B. /Belege/Import
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* nextcloud_done – Pfad für verarbeitete Dateien (optional), z.B. /Belege/Importiert
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*
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* Ablauf pro Datei:
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* 1. PROPFIND → Dateiliste
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* 2. GET → Datei herunterladen in temporäre Datei
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* 3. Duplikat-Check via SHA-256 gegen belege.file_hash
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* 4. In upload-Verzeichnis ablegen
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* 5. JPEG/PNG: weißen Rand wegschneiden
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* 6. Hash nach Crop neu berechnen
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* 7. Beleg in Datenbank anlegen
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* 8. MOVE → Datei in erledigte-Ordner verschieben (oder löschen falls kein DONE-Ordner)
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*/
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class NextcloudImportService
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{
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private const ALLOWED_MIME = [
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'application/pdf' => 'pdf',
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'image/png' => 'png',
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'image/jpeg' => 'jpg',
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'image/tiff' => 'tif',
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'application/xml' => 'xml',
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'text/xml' => 'xml',
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];
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private string $baseUrl;
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private string $user;
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private string $pass;
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private string $folder;
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private string|null $doneFolder;
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private string $davBase;
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private array $pendingEvents = [];
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public function __construct()
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{
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$cfg = Setting::get();
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$this->baseUrl = rtrim($cfg['nextcloud_url'] ?? '', '/');
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$this->user = $cfg['nextcloud_user'] ?? '';
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$this->pass = $cfg['nextcloud_pass'] ?? '';
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$this->folder = '/' . trim($cfg['nextcloud_folder'] ?: 'Belege/Import', '/');
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$doneRaw = $cfg['nextcloud_done'] ?? '';
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$this->doneFolder = $doneRaw !== '' ? ('/' . trim($doneRaw, '/')) : null;
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$this->davBase = $this->baseUrl . '/remote.php/dav/files/' . rawurlencode($this->user);
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}
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/**
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* Führt den Import durch. Gibt ein Array mit Ergebnissen zurück:
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* [
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* 'imported' => int, // neu importierte Belege
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* 'skipped' => int, // übersprungene (Duplikat oder falscher Typ)
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* 'errors' => int, // Fehler beim Verarbeiten
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* 'details' => string[], // Log-Meldungen
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* ]
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*/
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public function import(): array
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{
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$start = microtime(true);
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$result = ['imported' => 0, 'skipped' => 0, 'errors' => 0, 'details' => [], 'imported_ids' => []];
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if (!$this->baseUrl || !$this->user || !$this->pass) {
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$msg = 'FEHLER: NEXTCLOUD_URL, NEXTCLOUD_USER und NEXTCLOUD_PASS müssen gesetzt sein.';
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$result['details'][] = $msg;
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$result['errors']++;
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$this->persistEvent($msg);
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return $result;
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}
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$files = $this->listFiles();
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if ($files === null) {
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$msg = 'FEHLER: PROPFIND fehlgeschlagen. URL/Zugangsdaten prüfen.';
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$result['details'][] = $msg;
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$result['errors']++;
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$this->persistEvent($msg);
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return $result;
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}
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$result['details'][] = count($files) . ' Datei(en) im Import-Ordner gefunden.';
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foreach ($files as $file) {
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$this->processFile($file, $result);
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}
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if ($result['imported'] + $result['skipped'] + $result['errors'] > 0) {
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$elapsed = round(microtime(true) - $start, 2);
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$summary = sprintf(
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'Fertig in %ss – importiert: %d, übersprungen: %d, Fehler: %d',
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$elapsed, $result['imported'], $result['skipped'], $result['errors']
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);
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$this->persistEvent($summary);
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$result['details'][] = $summary;
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}
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return $result;
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}
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private function persistEvent(string $message): void
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{
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EventLog::add('nextcloud-import', $message);
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}
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/**
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* Listet alle Dateien im konfigurierten Ordner via PROPFIND.
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* Gibt null zurück bei Verbindungsfehler.
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*
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* @return array{href:string, filename:string, contenttype:string, size:int}[]|null
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*/
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private function listFiles(): ?array
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{
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$url = $this->davBase . $this->folder;
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$body = '<?xml version="1.0" encoding="UTF-8"?>'
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. '<d:propfind xmlns:d="DAV:">'
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. '<d:prop><d:displayname/><d:getcontenttype/><d:getcontentlength/><d:resourcetype/></d:prop>'
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. '</d:propfind>';
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$ch = $this->newCurl($url);
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curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'PROPFIND');
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curl_setopt($ch, CURLOPT_POSTFIELDS, $body);
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curl_setopt($ch, CURLOPT_HTTPHEADER, [
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'Content-Type: application/xml; charset=utf-8',
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'Depth: 1',
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]);
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$response = curl_exec($ch);
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$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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if ($response === false || $httpCode < 200 || $httpCode >= 300) {
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return null;
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}
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return $this->parsePropfind((string)$response);
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}
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/**
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* Parst die PROPFIND-Antwort und gibt Datei-Einträge zurück
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* (ohne den Ordner selbst, nur Nicht-Collection-Einträge).
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*
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* @return array{href:string, filename:string, contenttype:string, size:int}[]
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*/
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private function parsePropfind(string $xml): array
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{
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$files = [];
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$dom = new \DOMDocument();
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if (!@$dom->loadXML($xml)) {
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return $files;
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}
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$xpath = new \DOMXPath($dom);
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$xpath->registerNamespace('d', 'DAV:');
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$responses = $xpath->query('//d:response');
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if ($responses === false) {
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return $files;
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}
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foreach ($responses as $resp) {
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// Ordner überspringen
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$collection = $xpath->query('.//d:resourcetype/d:collection', $resp);
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if ($collection !== false && $collection->length > 0) {
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continue;
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}
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$hrefNode = $xpath->query('.//d:href', $resp);
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$contentTypeNode = $xpath->query('.//d:getcontenttype', $resp);
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$sizeNode = $xpath->query('.//d:getcontentlength', $resp);
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if ($hrefNode === false || $hrefNode->length === 0) {
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continue;
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}
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$href = $hrefNode->item(0)->textContent;
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$contentType = $contentTypeNode !== false && $contentTypeNode->length > 0
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? strtolower(trim($contentTypeNode->item(0)->textContent))
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: '';
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$size = $sizeNode !== false && $sizeNode->length > 0
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? (int)$sizeNode->item(0)->textContent
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: 0;
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// MIME: nur den Typ, ohne charset etc.
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if (str_contains($contentType, ';')) {
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$contentType = trim(explode(';', $contentType)[0]);
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}
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$files[] = [
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'href' => $href,
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'filename' => rawurldecode(basename($href)),
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'contenttype' => $contentType,
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'size' => $size,
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];
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}
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return $files;
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}
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/**
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* Verarbeitet eine einzelne Datei: Download, Duplikat-Check, Import, Verschieben.
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*/
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private function processFile(array $file, array &$result): void
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{
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$filename = $file['filename'];
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$contentType = $file['contenttype'];
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// MIME prüfen
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if (!isset(self::ALLOWED_MIME[$contentType])) {
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$msg = "Übersprungen (unbekannter Typ «{$contentType}»): {$filename}";
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$result['details'][] = $msg;
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$this->persistEvent($msg);
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$result['skipped']++;
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return;
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}
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$ext = self::ALLOWED_MIME[$contentType];
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// Datei herunterladen
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$fileUrl = $this->baseUrl . $file['href'];
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$tmpPath = sys_get_temp_dir() . '/nextcloud_import_' . uniqid() . '.' . $ext;
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if (!$this->downloadFile($fileUrl, $tmpPath)) {
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$msg = "FEHLER beim Download: {$filename}";
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$result['details'][] = $msg;
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$this->persistEvent($msg);
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$result['errors']++;
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return;
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}
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// Duplikat-Check via Hash (vor Crop, da sonst Hash-Vergleich sinnlos)
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$rawHash = hash_file('sha256', $tmpPath);
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$existing = Database::fetchOne(
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'SELECT id, beleg_nr FROM belege WHERE file_hash = ?',
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[$rawHash]
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);
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if ($existing) {
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$msg = "Duplikat (Beleg {$existing['beleg_nr']}): {$filename}";
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$result['details'][] = $msg;
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$this->persistEvent($msg);
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$result['skipped']++;
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unlink($tmpPath);
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$this->moveFile($file['href'], $filename);
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return;
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}
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// In Upload-Verzeichnis ablegen
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$belegNr = Beleg::generateBelegNr();
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$year = date('Y');
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$relDir = "static/uploads/{$year}/{$belegNr}";
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$absDir = dirname(__DIR__, 2) . "/public/{$relDir}";
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if (!is_dir($absDir) && !mkdir($absDir, 0755, true)) {
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$msg = "FEHLER: Verzeichnis konnte nicht erstellt werden: {$absDir}";
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$result['details'][] = $msg;
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$this->persistEvent($msg);
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$result['errors']++;
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unlink($tmpPath);
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return;
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}
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$storagePath = "{$relDir}/original.{$ext}";
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$absPath = dirname(__DIR__, 2) . "/public/{$storagePath}";
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if (!rename($tmpPath, $absPath)) {
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$msg = "FEHLER: Datei konnte nicht verschoben werden: {$filename}";
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$result['details'][] = $msg;
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$this->persistEvent($msg);
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$result['errors']++;
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@unlink($tmpPath);
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return;
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}
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// JPEG/PNG: weißen Rand wegschneiden
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if (in_array($contentType, ['image/jpeg', 'image/png'], true)) {
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(new ImageCropService())->cropWhitespace($absPath);
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}
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// Hash nach Crop neu berechnen
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$hash = hash_file('sha256', $absPath);
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// In Datenbank anlegen
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$today = date('Y-m-d');
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$belegId = Beleg::create([
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'beleg_nr' => $belegNr,
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'filename' => $filename,
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'storage_path' => $storagePath,
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'mime_type' => $contentType,
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'file_hash' => $hash,
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'beleg_datum' => null,
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'rechnungs_nr' => null,
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'betrag_brutto' => null,
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'belegtyp' => 'Eingangsrechnung',
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'notes' => 'Nextcloud-Import',
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]);
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// Datei in Nextcloud verschieben/löschen
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$this->moveFile($file['href'], $filename);
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$msg = "Importiert: {$filename} → Beleg {$belegNr}";
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$result['details'][] = $msg;
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$this->persistEvent($msg);
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$result['imported']++;
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$result['imported_ids'][] = $belegId;
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}
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/**
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* Lädt eine Datei per GET in eine lokale Datei herunter.
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*/
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private function downloadFile(string $url, string $targetPath): bool
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{
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$fh = fopen($targetPath, 'wb');
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if ($fh === false) {
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return false;
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}
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$ch = $this->newCurl($url);
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curl_setopt($ch, CURLOPT_FILE, $fh);
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$ok = curl_exec($ch);
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$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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fclose($fh);
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if ($ok === false || $httpCode < 200 || $httpCode >= 300) {
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@unlink($targetPath);
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return false;
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}
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return true;
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}
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/**
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* Verschiebt eine Nextcloud-Datei in den DONE-Ordner (MOVE).
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* Falls kein DONE-Ordner konfiguriert, wird die Datei gelöscht (DELETE).
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*/
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private function moveFile(string $href, string $filename): void
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{
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$srcUrl = $this->baseUrl . $href;
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if ($this->doneFolder !== null) {
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$destHref = $this->doneFolder . '/' . rawurlencode($filename);
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$destUrl = $this->davBase . $destHref;
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$ch = $this->newCurl($srcUrl);
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curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'MOVE');
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curl_setopt($ch, CURLOPT_HTTPHEADER, [
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'Destination: ' . $destUrl,
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'Overwrite: T',
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]);
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curl_exec($ch);
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curl_close($ch);
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} else {
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$ch = $this->newCurl($srcUrl);
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curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'DELETE');
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curl_exec($ch);
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curl_close($ch);
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}
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}
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/**
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* Erstellt einen vorkonfigurierten cURL-Handle mit Basis-Auth und TLS-Einstellungen.
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*
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* @return \CurlHandle
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*/
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private function newCurl(string $url): \CurlHandle
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{
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$ch = curl_init($url);
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curl_setopt($ch, CURLOPT_USERPWD, $this->user . ':' . $this->pass);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
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curl_setopt($ch, CURLOPT_TIMEOUT, 60);
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
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return $ch;
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}
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}
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