BUG: Accept XYZ destination with zoom missing (default to zoom=0.0) (#1844)

Closes #1832

Author: pubpub-zz

pypdf/generic/_data_structures.py

@@ -1363,6 +1363,8 @@ def __init__(
 
         # from table 8.2 of the PDF 1.7 reference.
         if typ == "/XYZ":
+            if len(args) < 3:  # zoom is missing
+                args.append(NumberObject(0.0))
             (
                 self[NameObject(TA.LEFT)],
                 self[NameObject(TA.TOP)],

tests/test_generic.py

@@ -1156,3 +1156,15 @@ def test_iss1615_1673():
     reader = PdfReader(BytesIO(get_pdf_from_url(url, name=name)))
     writer = PdfWriter()
     writer.clone_document_from_reader(reader)
+
+
+@pytest.mark.enable_socket()
+def test_destination_withoutzoom():
+    """Cf issue #1832"""
+    url = (
+        "https://raw.githubusercontent.com/xrkk/tmpppppp/main/"
+        "2021%20----%20book%20-%20Security%20of%20biquitous%20Computing%20Systems.pdf"
+    )
+    name = "2021_book_security.pdf"
+    reader = PdfReader(BytesIO(get_pdf_from_url(url, name=name)))
+    reader.outline