From 5395880429c7aeb73e18bb1beff261056d5d4c49 Mon Sep 17 00:00:00 2001
From: dankito <git@dankito.net>
Date: Thu, 21 Nov 2024 01:24:51 +0100
Subject: [PATCH] Implemented validating eInvoices via API

---
 .../kotlin/net/codinux/invoicing/api/InvoicingResource.kt | 8 ++++++++
 .../net/codinux/invoicing/service/InvoicingService.kt     | 7 +++++++
 e-invoice-api/src/main/resources/application.properties   | 6 ++++++
 3 files changed, 21 insertions(+)

diff --git a/e-invoice-api/src/main/kotlin/net/codinux/invoicing/api/InvoicingResource.kt b/e-invoice-api/src/main/kotlin/net/codinux/invoicing/api/InvoicingResource.kt
index 929eabc..abf2fdd 100644
--- a/e-invoice-api/src/main/kotlin/net/codinux/invoicing/api/InvoicingResource.kt
+++ b/e-invoice-api/src/main/kotlin/net/codinux/invoicing/api/InvoicingResource.kt
@@ -49,4 +49,12 @@ class InvoicingResource(
     fun extractInvoiceData(invoice: java.nio.file.Path) =
         service.extractInvoiceData(invoice)
 
+    @Path("validate")
+    @POST
+    @Consumes(MediaType.APPLICATION_OCTET_STREAM)
+    @Produces(MediaType.APPLICATION_XML)
+    @Operation(summary = "Validate a Factur-x / ZUGFeRD or XRechnung file")
+    fun validateInvoiceXml(invoice: java.nio.file.Path) =
+        service.validateInvoice(invoice).reportAsXml
+
 }
\ No newline at end of file
diff --git a/e-invoice-api/src/main/kotlin/net/codinux/invoicing/service/InvoicingService.kt b/e-invoice-api/src/main/kotlin/net/codinux/invoicing/service/InvoicingService.kt
index c5e709c..31805b9 100644
--- a/e-invoice-api/src/main/kotlin/net/codinux/invoicing/service/InvoicingService.kt
+++ b/e-invoice-api/src/main/kotlin/net/codinux/invoicing/service/InvoicingService.kt
@@ -4,6 +4,7 @@ import jakarta.inject.Singleton
 import net.codinux.invoicing.creation.EInvoiceCreator
 import net.codinux.invoicing.model.Invoice
 import net.codinux.invoicing.reader.EInvoiceReader
+import net.codinux.invoicing.validation.EInvoiceValidator
 import java.io.File
 import java.nio.file.Path
 import kotlin.io.path.extension
@@ -15,6 +16,8 @@ class InvoicingService {
 
     private val reader = EInvoiceReader()
 
+    private val validator = EInvoiceValidator()
+
 
     fun createXRechnung(invoice: Invoice): String =
         creator.createXRechnungXml(invoice)
@@ -39,4 +42,8 @@ class InvoicingService {
         else -> throw IllegalArgumentException("We can only extract eInvoice data from .xml and .pdf files")
     }
 
+
+    fun validateInvoice(invoice: Path) =
+        validator.validate(invoice.toFile())
+
 }
\ No newline at end of file
diff --git a/e-invoice-api/src/main/resources/application.properties b/e-invoice-api/src/main/resources/application.properties
index 9c59bb2..0c8cd7d 100644
--- a/e-invoice-api/src/main/resources/application.properties
+++ b/e-invoice-api/src/main/resources/application.properties
@@ -44,6 +44,12 @@ quarkus.log.loki.field.kubernetes.field.containername.include=false
 
 # to turn off verbose FOP messages
 quarkus.log.category."org.apache.fop.apps".level=ERROR
+# to turn off verbose invoice validation logging
+quarkus.log.category."org.mustangproject.validator".level=ERROR
+
+
+# to fix that javax.xml.namespace.QName gets loaded with Quarkus' class loader instead of default class loader which causes an error
+quarkus.class-loading.parent-first-artifacts=xpp3:xpp3
 
 
 # Live reload