feat(auth): Add OIDC support (#3517) (#6549)

spec/actions.js: Add OIDC metadata fetching

components/auth/oauth2: Add OIDC URL to the Authorization popup

src/core/plugins/spec/actions.js

@@ -150,6 +150,7 @@ const debResolveSubtrees = debounce(async () => {
       errSelectors,
       fn: {
         resolveSubtree,
+        fetch,
         AST = {}
       },
       specSelectors,
@@ -206,6 +207,28 @@ const debResolveSubtrees = debounce(async () => {
         errActions.newThrownErrBatch(preparedErrors)
       }
 
+      if (spec && specSelectors.isOAS3() && path[0] === "components" && path[1] === "securitySchemes") {
+        // Resolve OIDC URLs if present
+        await Promise.all(Object.values(spec)
+          .filter((scheme) => scheme.type === "openIdConnect")
+          .map(async (oidcScheme) => {
+            const req = {
+              url: oidcScheme.openIdConnectUrl,
+              requestInterceptor: requestInterceptor,
+              responseInterceptor: responseInterceptor
+            }
+            try {
+              const res = await fetch(req)
+              if (res instanceof Error || res.status >= 400) {
+                console.error(res.statusText + " " + req.url)
+              } else {
+                oidcScheme.openIdConnectData = JSON.parse(res.text)
+              }
+            } catch (e) {
+              console.error(e)
+            }
+          }))
+      }
       set(resultMap, path, spec)
       set(specWithCurrentSubtrees, path, spec)