Re: [PR] fix: add subdirectory deployment support for Swagger UI and app icon [superset]

Wed, 10 Sep 2025 18:02:36 -0700 


korbit-ai[bot] commented on code in PR #35098:
URL: https://github.com/apache/superset/pull/35098#discussion_r2338258526


##########
superset/views/core.py:
##########
@@ -938,3 +938,25 @@ def welcome(self) -> FlaskResponse:
     @deprecated(new_target="/sqllab/history")
     def sqllab_history(self) -> FlaskResponse:
         return redirect(url_for("SqllabView.history"))
+
+    @has_access
+    @expose("/swagger/v1")
+    def swagger_ui_redirect(self) -> FlaskResponse:
+        """
+        Redirect to Flask-AppBuilder's swagger UI with proper APPLICATION_ROOT 
support.
+
+        This fixes the issue where /swagger/v1 doesn't work in subdirectory 
deployments
+        by redirecting to Flask-AppBuilder's existing swagger endpoint.
+        """
+        # Check if swagger is enabled
+        if not app.config.get("FAB_API_SWAGGER_UI", False):
+            abort(404, "Swagger UI is disabled")
+
+        # Get the application root
+        app_root = app.config.get("APPLICATION_ROOT", "/").rstrip("/")
+
+        # Flask-AppBuilder's swagger endpoint is typically /api/v1/swagger
+        # Redirect to it with the proper application root prefix
+        fab_swagger_path = f"{app_root}/api/v1/swagger"

Review Comment:
   ### Potential Double Slash in Swagger Redirect URL <sub>![category 
Functionality](https://img.shields.io/badge/Functionality-0284c7)</sub>
   
   <details>
     <summary>Tell me more</summary>
   
   ###### What is the issue?
   The swagger redirect path is constructed without validating if app_root 
results in a double slash when APPLICATION_ROOT is '/'
   
   
   ###### Why this matters
   Could result in malformed URLs with double slashes (e.g., //api/v1/swagger) 
which may cause issues with some web servers or clients.
   
   ###### Suggested change ∙ *Feature Preview*
   Add handling for the app_root path to prevent double slashes:
   ```python
   fab_swagger_path = f"{app_root}/api/v1/swagger" if app_root else 
"/api/v1/swagger"
   ```
   
   
   ###### Provide feedback to improve future suggestions
   [![Nice 
Catch](https://img.shields.io/badge/👍%20Nice%20Catch-71BC78)](https://app.korbit.ai/feedback/aa91ff46-6083-4491-9416-b83dd1994b51/e725b253-8240-4788-b755-6dba3ddc7537/upvote)
 
[![Incorrect](https://img.shields.io/badge/👎%20Incorrect-white)](https://app.korbit.ai/feedback/aa91ff46-6083-4491-9416-b83dd1994b51/e725b253-8240-4788-b755-6dba3ddc7537?what_not_true=true)
  [![Not in 
Scope](https://img.shields.io/badge/👎%20Out%20of%20PR%20scope-white)](https://app.korbit.ai/feedback/aa91ff46-6083-4491-9416-b83dd1994b51/e725b253-8240-4788-b755-6dba3ddc7537?what_out_of_scope=true)
 [![Not in coding 
standard](https://img.shields.io/badge/👎%20Not%20in%20our%20standards-white)](https://app.korbit.ai/feedback/aa91ff46-6083-4491-9416-b83dd1994b51/e725b253-8240-4788-b755-6dba3ddc7537?what_not_in_standard=true)
 
[![Other](https://img.shields.io/badge/👎%20Other-white)](https://app.korbit.ai/feedback/aa91ff46-6083-4491-9416-b83dd1994b51/e725b253-8240-4788-b755-6dba3ddc7537)
   </details>
   
   <sub>
   
   💬 Looking for more details? Reply to this comment to chat with Korbit.
   </sub>
   
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