Supply url_fetcher to weasyprint to support /media and /static files

.pre-commit-config.yaml

@@ -10,15 +10,15 @@ exclude: |
     )$
 repos:
 -   repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v5.0.0
+    rev: v6.0.0
     hooks:
     -   id: trailing-whitespace
     -   id: end-of-file-fixer
     -   id: check-yaml
         exclude: mkdocs.yml
     -   id: mixed-line-ending
 -   repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.11.13
+    rev: v0.14.0
     hooks:
     - id: ruff-format
       args: [--preview]
@@ -29,7 +29,7 @@ repos:
         --preview
       ]
 -   repo: https://github.com/astral-sh/uv-pre-commit
-    rev: 0.7.12
+    rev: 0.9.3
     hooks:
       - id: pip-compile
         name: pip-compile requirements-dev.in
@@ -71,16 +71,16 @@ repos:
           src/frontend/vite.config.ts |
       )$
 -   repo: https://github.com/biomejs/pre-commit
-    rev: v2.0.0-beta.5
+    rev: v2.2.6
     hooks:
     -   id: biome-check
         additional_dependencies: ["@biomejs/[email protected]"]
         files: ^src/frontend/.*\.(js|ts|tsx)$
 -   repo: https://github.com/gitleaks/gitleaks
-    rev: v8.27.2
+    rev: v8.28.0
     hooks:
     -   id: gitleaks
-        language_version: 1.23.6
+        language_version: 1.23.8
 #-   repo: https://github.com/jumanjihouse/pre-commit-hooks
 #    rev: 3.0.0
 #    hooks:

src/backend/InvenTree/report/api.py

@@ -293,7 +293,13 @@ def print(self, template, items_to_print, request):
         item_ids = [item.pk for item in items_to_print]
 
         # Offload the task to the background worker
-        offload_task(report.tasks.print_reports, template.pk, item_ids, output.pk)
+        offload_task(
+            report.tasks.print_reports,
+            template.pk,
+            item_ids,
+            output.pk,
+            request=request,
+        )
 
         output.refresh_from_db()
 

src/backend/InvenTree/report/models.py

@@ -13,6 +13,7 @@
 from django.core.files.storage import default_storage
 from django.core.validators import FileExtensionValidator, MinValueValidator
 from django.db import models
+from django.http.request import HttpRequest
 from django.template import Context, Template
 from django.template.exceptions import TemplateDoesNotExist, TemplateSyntaxError
 from django.template.loader import render_to_string
@@ -35,7 +36,7 @@
 from plugin.registry import registry
 
 try:
-    from weasyprint import HTML
+    from weasyprint import HTML, default_url_fetcher
 except OSError as err:  # pragma: no cover
     print(f'OSError: {err}')
     print("Unable to import 'weasyprint' module.")
@@ -46,6 +47,24 @@
 logger = structlog.getLogger('inventree')
 
 
+def build_fetcher(request: HttpRequest):
+    """Factory function that returns a function that handles Weasyprint url requests.
+
+    Takes in an HttpRequest and copies it's headers for future requests.
+    """
+    http_headers = None
+
+    if request is not None:
+        http_headers = request.headers
+
+    def url_fetcher(url: str, timeout=10, ssl_context=None):
+        return default_url_fetcher(
+            url, timeout=timeout, ssl_context=ssl_context, http_headers=http_headers
+        )
+
+    return url_fetcher
+
+
 def log_report_error(*args, **kwargs):
     """Log an error message when a report fails to render."""
     try:
@@ -272,7 +291,11 @@ def render(self, instance, request=None, context=None, **kwargs) -> bytes:
             bytes: PDF data
         """
         html = self.render_as_string(instance, request, context, **kwargs)
-        pdf = HTML(string=html).write_pdf()
+        pdf = HTML(
+            string=html,
+            url_fetcher=build_fetcher(request),
+            base_url=get_base_url(request),
+        ).write_pdf()
 
         return pdf
 

src/backend/InvenTree/report/tasks.py

@@ -38,7 +38,7 @@ def print_reports(template_id: int, item_ids: list[int], output_id: int, **kwarg
     # Ensure they are sorted by the order of the provided item IDs
     items = sorted(items, key=lambda item: item_ids.index(item.pk))
 
-    template.print(items, output=output)
+    template.print(items, output=output, request=kwargs.get('request'))
 
 
 @tracer.start_as_current_span('print_labels')