fix(sitemap): let Sitemap.from_xml_string opt into enqueue host filtering

src/crawlee/_utils/sitemap.py

@@ -496,8 +496,17 @@ async def load(
         )
 
     @classmethod
-    async def from_xml_string(cls, content: str) -> Sitemap:
-        return await cls.parse([SitemapSource(type='raw', content=content)])
+    async def from_xml_string(
+        cls,
+        content: str,
+        *,
+        sitemap_url: str | None = None,
+        parse_sitemap_options: ParseSitemapOptions | None = None,
+    ) -> Sitemap:
+        source: SitemapSource = {'type': 'raw', 'content': content}
+        if sitemap_url is not None:
+            source['url'] = sitemap_url
+        return await cls.parse([source], parse_sitemap_options=parse_sitemap_options)
 
     @classmethod
     async def parse(

tests/unit/_utils/test_sitemap.py

@@ -321,6 +321,37 @@ async def test_sitemap_from_string() -> None:
     assert set(sitemap.urls) == get_basic_results()
 
 
+async def test_sitemap_from_string_keeps_same_host_with_sitemap_url() -> None:
+    """URLs on the sitemap's own host survive the default `same-hostname` filter."""
+    sitemap = await Sitemap.from_xml_string(
+        get_basic_sitemap(),
+        sitemap_url=f'{DEFAULT_URL}sitemap.xml',
+    )
+
+    assert set(sitemap.urls) == get_basic_results()
+
+
+async def test_sitemap_from_string_filters_cross_host_with_sitemap_url() -> None:
+    """`from_xml_string` opts into host filtering when `sitemap_url` is given."""
+    sitemap = await Sitemap.from_xml_string(
+        get_basic_sitemap(url='https://other.com/'),
+        sitemap_url=f'{DEFAULT_URL}sitemap.xml',
+    )
+
+    assert sitemap.urls == []
+
+
+async def test_sitemap_from_string_allows_cross_host_with_strategy_all() -> None:
+    """`enqueue_strategy='all'` disables host filtering for raw string sitemaps too."""
+    sitemap = await Sitemap.from_xml_string(
+        get_basic_sitemap(url='https://other.com/'),
+        sitemap_url=f'{DEFAULT_URL}sitemap.xml',
+        parse_sitemap_options={'enqueue_strategy': 'all'},
+    )
+
+    assert set(sitemap.urls) == get_basic_results('https://other.com/')
+
+
 async def test_malformed_sitemap_keeps_urls() -> None:
     """A parse error must not discard the URLs collected before it."""
     malformed = (