Export-Metadaten: Dublin Core, xmpRights und xmpMM nachruesten

Zusaetzliche XMP-Felder im PDF:
- dc:publisher (Organisation, Fallback AegisSight)
- dc:identifier (urn:aegissight:incident:<id>:<timestamp>)
- dc:date (Dokumentendatum, ergaenzend zu xmp:CreateDate)
- dc:format (application/pdf)
- dc:type (Report)
- dc:rights (Vertraulichkeitshinweis)
- pdf:Producer im XMP gespiegelt
- xmpRights:Marked (True) und xmpRights:UsageTerms (= dc:rights)
- xmpMM:DocumentID + xmpMM:InstanceID (UUIDs, frisch pro Export)

Damit koennen DMS-Systeme die Berichte versionieren, eindeutig
identifizieren und Vertraulichkeitshinweise anzeigen.

src/report_generator.py

@@ -4,6 +4,7 @@ import io
 import json
 import logging
 import re
+import uuid
 from collections import defaultdict
 from datetime import datetime
 from pathlib import Path
@@ -517,6 +518,13 @@ def _build_export_metadata(
         comments_lines.append("Orte: " + ", ".join(top_locations[:5]))
     comments = "\n".join(comments_lines)
 
+    publisher = organization_name or "AegisSight"
+    identifier = f"urn:aegissight:incident:{incident.get('id', '0')}:{now.strftime('%Y%m%dT%H%M%S')}"
+    rights = (
+        "Vertrauliche Lageanalyse — AegisSight Monitor. "
+        "Weitergabe nur an autorisierte Empfaenger."
+    )
+
     return {
         "title": title,
         "author": creator or "AegisSight Monitor",
@@ -534,6 +542,10 @@ def _build_export_metadata(
         "modified_iso": modified.strftime("%Y-%m-%dT%H:%M:%S"),
         "type_label": type_label,
         "scope_label": scope_label,
+        "publisher": publisher,
+        "identifier": identifier,
+        "rights": rights,
+        "doc_type": "Report",
     }
 
 
@@ -570,15 +582,32 @@ def _enrich_pdf_metadata(pdf_bytes: bytes, meta: dict) -> bytes:
             if modified:
                 pdf.docinfo["/ModDate"] = pikepdf.String(_format_pdf_date(modified))
 
-            # XMP-Metadatenblock schreiben (Dublin Core + XMP + PDF Namespaces)
+            # Document-/Instance-ID fuer DMS-Versionierung (frisch pro Export)
+            doc_uuid = f"uuid:{uuid.uuid4()}"
+            instance_uuid = f"uuid:{uuid.uuid4()}"
+
+            # XMP-Metadatenblock schreiben (Dublin Core + XMP + PDF + xmpRights + xmpMM)
             with pdf.open_metadata(set_pikepdf_as_editor=False) as xmp:
+                # Dublin Core
                 xmp["dc:title"] = meta.get("title", "")
                 xmp["dc:creator"] = [meta.get("author", "")]
                 xmp["dc:description"] = meta.get("subject", "")
                 if meta.get("keywords"):
                     xmp["dc:subject"] = list(meta["keywords"])
                 xmp["dc:language"] = [meta.get("language", "de-DE")]
+                xmp["dc:publisher"] = [meta.get("publisher", "AegisSight")]
+                xmp["dc:identifier"] = meta.get("identifier", "")
+                xmp["dc:format"] = "application/pdf"
+                xmp["dc:type"] = [meta.get("doc_type", "Report")]
+                xmp["dc:rights"] = meta.get("rights", "")
+                if created:
+                    xmp["dc:date"] = [created.strftime("%Y-%m-%dT%H:%M:%S%z")]
+
+                # PDF Namespace
                 xmp["pdf:Keywords"] = meta.get("keywords_comma", "")
+                xmp["pdf:Producer"] = "WeasyPrint + AegisSight Monitor"
+
+                # XMP Namespace
                 xmp["xmp:CreatorTool"] = meta.get("creator_app", "AegisSight Monitor")
                 if created:
                     xmp["xmp:CreateDate"] = created.strftime("%Y-%m-%dT%H:%M:%S%z")
@@ -586,6 +615,16 @@ def _enrich_pdf_metadata(pdf_bytes: bytes, meta: dict) -> bytes:
                     xmp["xmp:ModifyDate"] = modified.strftime("%Y-%m-%dT%H:%M:%S%z")
                     xmp["xmp:MetadataDate"] = modified.strftime("%Y-%m-%dT%H:%M:%S%z")
 
+                # xmpRights: Rechte- und Vertraulichkeitshinweis (XMP erwartet String "True")
+                xmp["xmpRights:Marked"] = "True"
+                if meta.get("rights"):
+                    # String: pikepdf wrapped das automatisch als LangAlt mit x-default
+                    xmp["xmpRights:UsageTerms"] = meta["rights"]
+
+                # xmpMM: Document- und Instance-ID fuer DMS-Versionierung
+                xmp["xmpMM:DocumentID"] = doc_uuid
+                xmp["xmpMM:InstanceID"] = instance_uuid
+
             buf_out = io.BytesIO()
             pdf.save(buf_out)
             return buf_out.getvalue()