Restrict protocols allowed for weasyprint to http(s)

Closes #14947
(grafted from 7c72806c98c07bb4ccb1f5f1b84954350541ec3a)

--HG--
branch : 8.0

trytond/CHANGELOG

@@ -1,3 +1,4 @@
+* Restrict protocols allowed for weasyprint to http(s) (issue14947)
 
 Version 8.0.7 - 2026-07-15
 --------------------------

trytond/pyproject.toml

@@ -60,7 +60,7 @@ test = [
     'pillow',
     'pydot',
     ]
-weasyprint = ['weasyprint']
+weasyprint = ['weasyprint >= 68.0']
 
 [project.scripts]
 trytond = 'trytond.cli:main'

trytond/trytond/report/report.py

@@ -414,7 +414,12 @@ class Report(URLMixin, PoolBase):
         if (input_format in {'html', 'xhtml'}
                 and output_format == 'pdf'):
             if weasyprint := _lazy_import('weasyprint'):
-                return output_format, weasyprint.HTML(string=data).write_pdf()
+                return output_format, weasyprint.HTML(
+                    string=data,
+                    url_fetcher=weasyprint.URLFetcher(
+                        allowed_protocols={'http', 'https'},
+                        ),
+                    ).write_pdf()
 
         if (input_format == 'xml'
                 and output_format == 'html'