Add schema

diff --git a/drafthorse/pdf.py b/drafthorse/pdf.py
index 4006492261aba464362955094ce0a98926f0b16f..b08d39f764fc94d0a38fab08986be8061eb39f6d 100644 (file)
--- a/drafthorse/pdf.py
+++ b/drafthorse/pdf.py
@@ -26,6 +26,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 import datetime
 import hashlib
+import os
 from io import BytesIO
 
 from lxml import etree
@@ -85,7 +86,7 @@ def _prepare_pdf_metadata_txt(pdf_metadata):
     info_dict = {
         '/Author': pdf_metadata.get('author', ''),
         '/CreationDate': pdf_date,
-        '/Creator': 'pretix',
+        '/Creator': 'python-drafthorse',
         '/Keywords': pdf_metadata.get('keywords', ''),
         '/ModDate': pdf_date,
         '/Subject': pdf_metadata.get('subject', ''),
@@ -139,22 +140,20 @@ def _prepare_pdf_metadata_xml(level, pdf_metadata):
     desc_xmp = etree.SubElement(rdf, ns_rdf + 'Description', nsmap=nsmap_xmp)
     desc_xmp.set(ns_rdf + 'about', '')
     creator = etree.SubElement(desc_xmp, ns_xmp + 'CreatorTool')
-    creator.text = 'pretix'
+    creator.text = 'python-drafthorse'
     timestamp = datetime.datetime.now().isoformat()
     etree.SubElement(desc_xmp, ns_xmp + 'CreateDate').text = timestamp
     etree.SubElement(desc_xmp, ns_xmp + 'ModifyDate').text = timestamp
 
-    """
-    xmp_file = resource_filename(__name__, 'xmp/Factur-X_extension_schema.xmp')
+    xmp_file = os.path.join(os.path.dirname(__file__), 'schema', 'ZUGFeRD1p0_extension_schema.xmp')
     # Reason for defining a parser below:
     # http://lxml.de/FAQ.html#why-doesn-t-the-pretty-print-option-reformat-my-xml-output
     parser = etree.XMLParser(remove_blank_text=True)
     facturx_ext_schema_root = etree.parse(open(xmp_file), parser)
     # The Factur-X extension schema must be embedded into each PDF document
-    facturx_ext_schema_desc_xpath = facturx_ext_schema_root.xpath(
-        '//rdf:Description', namespaces=nsmap_rdf)
+    facturx_ext_schema_desc_xpath = facturx_ext_schema_root.xpath('//rdf:Description', namespaces=nsmap_rdf)
     rdf.append(facturx_ext_schema_desc_xpath[1])
-    """
+
     # Now is the ZUGFeRD description tag
     zugferd_desc = etree.SubElement(rdf, ns_rdf + 'Description', nsmap=nsmap_zf)
     zugferd_desc.set(ns_rdf + 'about', '')

diff --git a/drafthorse/schema/ZUGFeRD1p0_extension_schema.xmp b/drafthorse/schema/ZUGFeRD1p0_extension_schema.xmp
new file mode 100644 (file)
index 0000000..912d644
--- /dev/null
+++ b/drafthorse/schema/ZUGFeRD1p0_extension_schema.xmp
@@ -0,0 +1,97 @@
+<!--
+PDFlib GmbH 2013-2014
+
+Sample ZUGFeRD XMP with the required PDF/A extension schema description
+for the XMP properties of the ZUGFeRD schema and the actual ZUGFeRD properties.
+
+Schema name: ZUGFeRD Schema
+Preferred schema namespace prefix: zf
+Schema namespace URI: urn:ferd:pdfa:CrossIndustryDocument:invoice:1p0#
+
+Notes on the ZUGFeRD schema namespace URI:
+
+- The use of mixed upper/lowercase in "CrossIndustryDocument" conforms to
+  the ZUGFeRD 1.0 specification. The PDF samples distributed with the
+  ZUGFeRD 1.0 info package use all-lowercase spelling "crossindustrydocument"
+  which is not correct since it violates the ZUGFeRD specification.
+
+- The required trailing "#" character is missing in the comment in the
+  ZUGFeRD 1.0 extension schema description which is included in the ZUGFeRD
+  specification, but it is correctly present in the actual XMP.
+
+Based on the ZUGFeRD 1.0 package (published 2014-06 on www.ferd-net.de)
+which is Copyright AWV e.V. 2014.
+
+2014-07-01 (based on ZUGFeRD 1.0)
+Adjustments for ZUGFeRD 1.0:
+- updated header comments
+- switched to new namespace URI
+- adjusted property descriptions in the extension schema descriptions
+
+2013-06-19 (based on ZUGFeRD RC)
+Added a trailing hash character "#" to the "zf" namespace name as required
+by the XMP 2005 specification which is referenced in PDF/A-2 and PDF/A-3.
+Without this change Acrobat XI Preflight validation for PDF/A-3 complains
+"Extension schema present but not valid"
+
+2013-06-19
+Singled out the zf properties into a separate rdf:Description node to work
+around bug #4433 in PDFlib 9.0.0 which has been fixed in PDFlib 9.0.1.
+
+-->
+<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
+
+  <!-- The actual ZUGFeRD properties; adjust if required -->
+  <rdf:Description rdf:about="" xmlns:zf="urn:ferd:pdfa:CrossIndustryDocument:invoice:1p0#">
+        <zf:ConformanceLevel>BASIC</zf:ConformanceLevel>
+        <zf:DocumentFileName>ZUGFeRD-invoice.xml</zf:DocumentFileName>
+        <zf:DocumentType>INVOICE</zf:DocumentType>
+        <zf:Version>1.0</zf:Version>
+  </rdf:Description>
+
+  <!-- PDF/A extension schema description for the ZUGFeRD schema.
+     It is crucial for PDF/A-3 conformance. Don't touch! -->
+  <rdf:Description rdf:about=""
+               xmlns:pdfaExtension="http://www.aiim.org/pdfa/ns/extension/"
+               xmlns:pdfaSchema="http://www.aiim.org/pdfa/ns/schema#"
+               xmlns:pdfaProperty="http://www.aiim.org/pdfa/ns/property#">
+
+        <pdfaExtension:schemas>
+               <rdf:Bag>
+                  <rdf:li rdf:parseType="Resource">
+                         <pdfaSchema:schema>ZUGFeRD PDFA Extension Schema</pdfaSchema:schema>
+                         <pdfaSchema:namespaceURI>urn:ferd:pdfa:CrossIndustryDocument:invoice:1p0#</pdfaSchema:namespaceURI>
+                         <pdfaSchema:prefix>zf</pdfaSchema:prefix>
+                         <pdfaSchema:property>
+                                <rdf:Seq>
+                                       <rdf:li rdf:parseType="Resource">
+                                          <pdfaProperty:name>DocumentFileName</pdfaProperty:name>
+                                          <pdfaProperty:valueType>Text</pdfaProperty:valueType>
+                                          <pdfaProperty:category>external</pdfaProperty:category>
+                                          <pdfaProperty:description>name of the embedded XML invoice file</pdfaProperty:description>
+                                       </rdf:li>
+                                       <rdf:li rdf:parseType="Resource">
+                                          <pdfaProperty:name>DocumentType</pdfaProperty:name>
+                                          <pdfaProperty:valueType>Text</pdfaProperty:valueType>
+                                          <pdfaProperty:category>external</pdfaProperty:category>
+                                          <pdfaProperty:description>INVOICE</pdfaProperty:description>
+                                       </rdf:li>
+                                       <rdf:li rdf:parseType="Resource">
+                                          <pdfaProperty:name>Version</pdfaProperty:name>
+                                          <pdfaProperty:valueType>Text</pdfaProperty:valueType>
+                                          <pdfaProperty:category>external</pdfaProperty:category>
+                                          <pdfaProperty:description>The actual version of the ZUGFeRD XML schema</pdfaProperty:description>
+                                       </rdf:li>
+                                       <rdf:li rdf:parseType="Resource">
+                                          <pdfaProperty:name>ConformanceLevel</pdfaProperty:name>
+                                          <pdfaProperty:valueType>Text</pdfaProperty:valueType>
+                                          <pdfaProperty:category>external</pdfaProperty:category>
+                                          <pdfaProperty:description>The conformance level of the embedded ZUGFeRD data</pdfaProperty:description>
+                                       </rdf:li>
+                                </rdf:Seq>
+                         </pdfaSchema:property>
+                  </rdf:li>
+               </rdf:Bag>
+        </pdfaExtension:schemas>
+  </rdf:Description>
+</rdf:RDF>