feat: Add placeholders for static assets to configuration.

config/config-default.json

@@ -16,6 +16,7 @@
     "files-scs:config/presets/middleware.json",
     "files-scs:config/presets/pod-management.json",
     "files-scs:config/presets/representation-conversion.json",
+    "files-scs:config/presets/static.json",
     "files-scs:config/presets/storage/backend/storage-memory.json",
     "files-scs:config/presets/storage-wrapper.json",
     "files-scs:config/presets/cli-params.json"

config/config-file.json

@@ -16,6 +16,7 @@
     "files-scs:config/presets/middleware.json",
     "files-scs:config/presets/pod-management.json",
     "files-scs:config/presets/representation-conversion.json",
+    "files-scs:config/presets/static.json",
     "files-scs:config/presets/storage/backend/storage-filesystem.json",
     "files-scs:config/presets/storage-wrapper.json",
     "files-scs:config/presets/cli-params.json"

config/config-path-routing.json

@@ -16,6 +16,7 @@
     "files-scs:config/presets/middleware.json",
     "files-scs:config/presets/pod-management.json",
     "files-scs:config/presets/representation-conversion.json",
+    "files-scs:config/presets/static.json",
     "files-scs:config/presets/storage/backend/storage-filesystem.json",
     "files-scs:config/presets/storage/backend/storage-memory.json",
     "files-scs:config/presets/storage/backend/storage-sparql-endpoint.json",

config/config-rdf-to-sparql-endpoint.json

@@ -16,6 +16,7 @@
     "files-scs:config/presets/middleware.json",
     "files-scs:config/presets/pod-management.json",
     "files-scs:config/presets/representation-conversion.json",
+    "files-scs:config/presets/static.json",
     "files-scs:config/presets/storage/backend/storage-filesystem.json",
     "files-scs:config/presets/storage/backend/storage-sparql-endpoint.json",
     "files-scs:config/presets/storage/routing/quad-type-routing.json",

config/config-sparql-endpoint.json

@@ -16,6 +16,7 @@
     "files-scs:config/presets/middleware.json",
     "files-scs:config/presets/pod-management.json",
     "files-scs:config/presets/representation-conversion.json",
+    "files-scs:config/presets/static.json",
     "files-scs:config/presets/storage/backend/storage-sparql-endpoint.json",
     "files-scs:config/presets/storage-wrapper.json",
     "files-scs:config/presets/cli-params.json"

config/presets/http.json

@@ -28,6 +28,9 @@
         {
           "@type": "WaterfallHandler",
           "WaterfallHandler:_handlers": [
+            {
+              "@id": "urn:solid-server:default:StaticAssetHandler"
+            },
             {
               "@id": "urn:solid-server:default:PodManagerHandler"
             },

config/presets/representation-conversion.json

@@ -82,7 +82,11 @@
       "@type": "WaterfallHandler",
       "WaterfallHandler:_handlers": [
         {
-          "@type": "IfNeededConverter"
+          "@id": "urn:solid-server:default:IndexConverter",
+        },
+        {
+          "@type": "IfNeededConverter",
+          "comment": "Only continue converting if the requester cannot accept the available content type",
         },
         {
           "@id": "urn:solid-server:default:ContentTypeReplacer"

config/presets/static.json

@@ -0,0 +1,15 @@
+{
+  "@context": "https://linkedsoftwaredependencies.org/bundles/npm/@solid/community-server/^0.0.0/components/context.jsonld",
+  "@graph": [
+    {
+      "@id": "urn:solid-server:default:IndexConverter",
+      "@type": "UnsupportedAsyncHandler",
+      "comment": "This value can be used to set a custom handler for index files"
+    },
+    {
+      "@id": "urn:solid-server:default:StaticAssetHandler",
+      "@type": "UnsupportedAsyncHandler",
+      "comment": "This value can be used to set a custom handler for static assets"
+    }
+  ]
+}

src/server/middleware/StaticAssetHandler.ts

@@ -2,6 +2,7 @@ import { createReadStream } from 'fs';
 import * as mime from 'mime-types';
 import { getLoggerFor } from '../../logging/LogUtil';
 import { APPLICATION_OCTET_STREAM } from '../../util/ContentTypes';
+import { NotImplementedHttpError } from '../../util/errors/NotImplementedHttpError';
 import { pipeSafely } from '../../util/StreamUtil';
 import type { HttpHandlerInput } from '../HttpHandler';
 import { HttpHandler } from '../HttpHandler';
@@ -25,10 +26,10 @@ export class StaticAssetHandler extends HttpHandler {
 
   public async canHandle({ request }: HttpHandlerInput): Promise<void> {
     if (request.method !== 'GET' && request.method !== 'HEAD') {
-      throw new Error('Only GET and HEAD requests are supported');
+      throw new NotImplementedHttpError('Only GET and HEAD requests are supported');
     }
     if (!(this.getAssetUrl(request) in this.assets)) {
-      throw new Error(`No static resource at ${request.url}`);
+      throw new NotImplementedHttpError(`No static resource at ${request.url}`);
     }
   }
 

test/integration/config/ldp-with-auth.json

@@ -11,6 +11,7 @@
     "files-scs:config/presets/ldp/response-writer.json",
     "files-scs:config/presets/ldp/request-parser.json",
     "files-scs:config/presets/representation-conversion.json",
+    "files-scs:config/presets/static.json",
     "files-scs:config/presets/storage/backend/storage-memory.json",
     "files-scs:config/presets/storage/backend/storage-filesystem.json",
     "files-scs:config/presets/storage/backend/storage-sparql-endpoint.json",

test/integration/config/server-middleware.json

@@ -3,6 +3,7 @@
   "import": [
     "files-scs:config/presets/http.json",
     "files-scs:config/presets/middleware.json",
+    "files-scs:config/presets/static.json",
     "files-scs:config/presets/cli-params.json"
   ],
   "@graph": [

test/integration/config/server-without-auth.json

@@ -12,6 +12,7 @@
     "files-scs:config/presets/middleware.json",
     "files-scs:config/presets/pod-management.json",
     "files-scs:config/presets/representation-conversion.json",
+    "files-scs:config/presets/static.json",
     "files-scs:config/presets/storage/backend/storage-memory.json",
     "files-scs:config/presets/storage-wrapper.json",
     "files-scs:config/presets/cli-params.json"