Check if the current user can manage plugins

Author: jkmassel

Modules/Sources/WordPressCore/WordPressClient.swift

@@ -14,19 +14,35 @@ public actor WordPressClient {
     public let rootUrl: String
 
     private var apiRoot: WpApiDetails?
+    private var currentUser: UserWithEditContext?
 
     public init(api: WordPressAPI, rootUrl: ParsedUrl) {
         self.api = api
         self.rootUrl = rootUrl.url()
     }
 
     public func refreshCachedSiteInfo() async throws {
-        let apiRoot = try await self.api.apiRoot.get()
-        self.apiRoot = apiRoot.data
+        async let apiRootTask = try await self.api.apiRoot.get().data
+        async let currentUserTask = try await self.api.users.retrieveMeWithEditContext().data
+
+        let (apiRoot, currentUser) = try await (apiRootTask, currentUserTask)
+
+        self.apiRoot = apiRoot
+        self.currentUser = currentUser
     }
 
-    public func currentUserCan(_ capability: String) async throws -> Bool {
-        false
+    public func currentUserCan(_ capability: UserCapability) async throws -> Bool {
+        try await fetchCurrentUser().capabilities.keys.contains(capability)
+    }
+
+    private func fetchCurrentUser() async throws -> UserWithEditContext {
+        if let currentUser = self.currentUser {
+            return currentUser
+        }
+
+        let currentUser = try await self.api.users.retrieveMeWithEditContext().data
+        self.currentUser = currentUser
+        return currentUser
     }
 
     public func supports(_ feature: Feature, forSiteId siteId: Int? = nil) async throws -> Bool {

WordPress/Classes/Services/CommentServiceRemoteFactory.swift

@@ -1,6 +1,7 @@
 import Foundation
 import WordPressData
 import WordPressKit
+import WordPressCore
 
 /// Provides service remote instances for CommentService
 @objc public class CommentServiceRemoteFactory: NSObject {
@@ -18,7 +19,7 @@ import WordPressKit
 
         // The REST API does not have information about comment "likes". We'll continue to use WordPress.com API for now.
         if let site = try? WordPressSite(blog: blog) {
-            return CommentServiceRemoteCoreRESTAPI(client: .init(site: site))
+            return CommentServiceRemoteCoreRESTAPI(client: WordPressClient(site: site))
         }
 
         if let api = blog.xmlrpcApi,

WordPress/Classes/ViewRelated/NewGutenberg/NewGutenbergViewController.swift

@@ -538,7 +538,7 @@ class NewGutenbergViewController: UIViewController, PostEditor, PublishingEditor
 
     private func fetchPluginRecommendation(client: WordPressClient) async throws -> RecommendedPlugin? {
 
-        guard try await client.supports(.managePlugins) else {
+        guard try await client.supports(.managePlugins), try await client.currentUserCan(.installPlugins) else {
             return nil
         }