Merge branch '3.1.x'

.github/workflows/publish.yaml

@@ -58,13 +58,10 @@ jobs:
     # files in the draft release.
     environment: 'publish'
     runs-on: ubuntu-latest
+    permissions:
+      id-token: write
     steps:
       - uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a
-      # Try uploading to Test PyPI first, in case something fails.
-      - uses: pypa/gh-action-pypi-publish@b7f401de30cb6434a1e19f805ff006643653240e
-        with:
-          repository_url: https://test.pypi.org/legacy/
-          packages_dir: artifact/
-      - uses: pypa/gh-action-pypi-publish@b7f401de30cb6434a1e19f805ff006643653240e
+      - uses: pypa/gh-action-pypi-publish@2f6f737ca5f74c637829c0f5c3acd0e29ea5e8bf
         with:
-          packages_dir: artifact/
+          packages-dir: artifact/

.pre-commit-config.yaml

@@ -3,21 +3,21 @@ ci:
   autoupdate_schedule: monthly
 repos:
   - repo: https://github.com/asottile/pyupgrade
-    rev: v3.7.0
+    rev: v3.15.0
     hooks:
       - id: pyupgrade
         args: ["--py37-plus"]
   - repo: https://github.com/asottile/reorder-python-imports
-    rev: v3.10.0
+    rev: v3.12.0
     hooks:
       - id: reorder-python-imports
         args: ["--application-directories", "src"]
   - repo: https://github.com/psf/black
-    rev: 23.3.0
+    rev: 23.12.1
     hooks:
       - id: black
   - repo: https://github.com/PyCQA/flake8
-    rev: 6.0.0
+    rev: 7.0.0
     hooks:
       - id: flake8
         additional_dependencies: [flake8-bugbear]
@@ -26,7 +26,7 @@ repos:
     hooks:
       - id: pip-compile-multi-verify
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.4.0
+    rev: v4.5.0
     hooks:
       - id: fix-byte-order-marker
       - id: trailing-whitespace

CHANGES.rst

@@ -13,10 +13,13 @@ Unreleased
 Version 3.1.3
 -------------
 
-Unreleased
+Released 2024-01-10
 
 -   Fix compiler error when checking if required blocks in parent templates are
     empty. :pr:`1858`
+-   ``xmlattr`` filter does not allow keys with spaces. GHSA-h5c8-rqwp-cp95
+-   Make error messages stemming from invalid nesting of ``{% trans %}`` blocks
+    more helpful. :pr:`1918`
 
 
 Version 3.1.2

src/jinja2/compiler.py

@@ -1406,15 +1406,15 @@ def _make_finalize(self) -> _FinalizeInfo:
 
             if pass_arg is None:
 
-                def finalize(value: t.Any) -> t.Any:
+                def finalize(value: t.Any) -> t.Any:  # noqa: F811
                     return default(env_finalize(value))
 
             else:
                 src = f"{src}{pass_arg}, "
 
                 if pass_arg == "environment":
 
-                    def finalize(value: t.Any) -> t.Any:
+                    def finalize(value: t.Any) -> t.Any:  # noqa: F811
                         return default(env_finalize(self.environment, value))
 
         self._finalize = self._FinalizeInfo(finalize, src)

src/jinja2/ext.py

@@ -495,16 +495,26 @@ def _parse_block(
                 parser.stream.expect("variable_end")
             elif parser.stream.current.type == "block_begin":
                 next(parser.stream)
-                if parser.stream.current.test("name:endtrans"):
+                block_name = (
+                    parser.stream.current.value
+                    if parser.stream.current.type == "name"
+                    else None
+                )
+                if block_name == "endtrans":
                     break
-                elif parser.stream.current.test("name:pluralize"):
+                elif block_name == "pluralize":
                     if allow_pluralize:
                         break
                     parser.fail(
                         "a translatable section can have only one pluralize section"
                     )
+                elif block_name == "trans":
+                    parser.fail(
+                        "trans blocks can't be nested; did you mean `endtrans`?"
+                    )
                 parser.fail(
-                    "control structures in translatable sections are not allowed"
+                    f"control structures in translatable sections are not allowed; "
+                    f"saw `{block_name}`"
                 )
             elif parser.stream.eos:
                 parser.fail("unclosed translation block")

src/jinja2/filters.py

@@ -248,13 +248,17 @@ def do_items(value: t.Union[t.Mapping[K, V], Undefined]) -> t.Iterator[t.Tuple[K
     yield from value.items()
 
 
+_space_re = re.compile(r"\s", flags=re.ASCII)
+
+
 @pass_eval_context
 def do_xmlattr(
     eval_ctx: "EvalContext", d: t.Mapping[str, t.Any], autospace: bool = True
 ) -> str:
     """Create an SGML/XML attribute string based on the items in a dict.
-    All values that are neither `none` nor `undefined` are automatically
-    escaped:
+
+    If any key contains a space, this fails with a ``ValueError``. Values that
+    are neither ``none`` nor ``undefined`` are automatically escaped.
 
     .. sourcecode:: html+jinja
 
@@ -273,12 +277,22 @@ def do_xmlattr(
 
     As you can see it automatically prepends a space in front of the item
     if the filter returned something unless the second parameter is false.
+
+    .. versionchanged:: 3.1.3
+        Keys with spaces are not allowed.
     """
-    rv = " ".join(
-        f'{escape(key)}="{escape(value)}"'
-        for key, value in d.items()
-        if value is not None and not isinstance(value, Undefined)
-    )
+    items = []
+
+    for key, value in d.items():
+        if value is None or isinstance(value, Undefined):
+            continue
+
+        if _space_re.search(key) is not None:
+            raise ValueError(f"Spaces are not allowed in attributes: '{key}'")
+
+        items.append(f'{escape(key)}="{escape(value)}"')
+
+    rv = " ".join(items)
 
     if autospace and rv:
         rv = " " + rv

src/jinja2/parser.py

@@ -859,7 +859,7 @@ def parse_subscribed(self) -> nodes.Expr:
         else:
             args.append(None)
 
-        return nodes.Slice(lineno=lineno, *args)
+        return nodes.Slice(lineno=lineno, *args)  # noqa: B026
 
     def parse_call_args(
         self,

tests/test_ext.py

@@ -7,6 +7,7 @@
 from jinja2 import Environment
 from jinja2 import nodes
 from jinja2 import pass_context
+from jinja2 import TemplateSyntaxError
 from jinja2.exceptions import TemplateAssertionError
 from jinja2.ext import Extension
 from jinja2.lexer import count_newlines
@@ -468,6 +469,18 @@ def test_extract_context(self):
             (3, "npgettext", ("babel", "%(users)s user", "%(users)s users", None), []),
         ]
 
+    def test_nested_trans_error(self):
+        s = "{% trans %}foo{% trans %}{% endtrans %}"
+        with pytest.raises(TemplateSyntaxError) as excinfo:
+            i18n_env.from_string(s)
+        assert "trans blocks can't be nested" in str(excinfo.value)
+
+    def test_trans_block_error(self):
+        s = "{% trans %}foo{% wibble bar %}{% endwibble %}{% endtrans %}"
+        with pytest.raises(TemplateSyntaxError) as excinfo:
+            i18n_env.from_string(s)
+        assert "saw `wibble`" in str(excinfo.value)
+
 
 class TestScope:
     def test_basic_scope_behavior(self):

tests/test_filters.py

@@ -474,6 +474,12 @@ def test_xmlattr(self, env):
         assert 'bar="23"' in out
         assert 'blub:blub="<?>"' in out
 
+    def test_xmlattr_key_with_spaces(self, env):
+        with pytest.raises(ValueError, match="Spaces are not allowed"):
+            env.from_string(
+                "{{ {'src=1 onerror=alert(1)': 'my_class'}|xmlattr }}"
+            ).render()
+
     def test_sort1(self, env):
         tmpl = env.from_string("{{ [2, 3, 1]|sort }}|{{ [2, 3, 1]|sort(true) }}")
         assert tmpl.render() == "[1, 2, 3]|[3, 2, 1]"