feat(api): make any platform optional

api/onnx_web/serve.py

@@ -333,15 +333,18 @@ def load_params(context: ServerContext):
         config_params = yaml.safe_load(f)
 
         if "platform" in config_params and context.default_platform is not None:
-            logger.info("overriding default platform to %s", context.default_platform)
+            logger.info("Overriding default platform from environment: %s", context.default_platform)
             config_platform = config_params.get("platform", {})
             config_platform["default"] = context.default_platform
 
 
-def load_platforms():
+def load_platforms(context: ServerContext):
     global available_platforms
 
-    providers = ["any"].extend(get_available_providers())
+    providers = [].extend(get_available_providers())
+
+    if context.any_platform:
+        providers.append("any")
 
     for potential in platform_providers:
         if (
@@ -391,7 +394,7 @@ context = ServerContext.from_environ()
 check_paths(context)
 load_models(context)
 load_params(context)
-load_platforms()
+load_platforms(context)
 
 app = Flask(__name__)
 CORS(app, origins=context.cors_origin)

api/onnx_web/utils.py

@@ -19,6 +19,7 @@ class ServerContext:
         params_path: str = ".",
         cors_origin: str = "*",
         num_workers: int = 1,
+        any_platform: bool = True,
         block_platforms: List[str] = [],
         default_platform: str = None,
         image_format: str = "png",
@@ -29,6 +30,7 @@ class ServerContext:
         self.params_path = params_path
         self.cors_origin = cors_origin
         self.num_workers = num_workers
+        self.any_platform = any_platform
         self.block_platforms = block_platforms
         self.default_platform = default_platform
         self.image_format = image_format
@@ -45,6 +47,7 @@ class ServerContext:
             # others
             cors_origin=environ.get("ONNX_WEB_CORS_ORIGIN", "*").split(","),
             num_workers=int(environ.get("ONNX_WEB_NUM_WORKERS", 1)),
+            any_platform=get_boolean(environ, "ONNX_WEB_ANY_PLATFORM", True),
             block_platforms=environ.get("ONNX_WEB_BLOCK_PLATFORMS", "").split(","),
             default_platform=environ.get("ONNX_WEB_DEFAULT_PLATFORM", None),
             image_format=environ.get("ONNX_WEB_IMAGE_FORMAT", "png"),
@@ -57,7 +60,13 @@ def base_join(base: str, tail: str) -> str:
 
 
 def is_debug() -> bool:
-    return environ.get("DEBUG") is not None
+    return get_boolean(environ, "DEBUG", False)
+
+
+def get_boolean(
+    args: Any, key: str, default_value: bool
+) -> bool:
+    return (args.get(key, str(default_value)).lower() in ('1', 't', 'true', 'y', 'yes'))
 
 
 def get_and_clamp_float(