feat: add configurable booru user agent settings

2 files changed, 38 insertions, 6 deletions

diff --git a/Sora/Data/Booru/BooruManager.swift b/Sora/Data/Booru/BooruManager.swift
index 2957fcd..68d5079 100644
--- a/Sora/Data/Booru/BooruManager.swift
+++ b/Sora/Data/Booru/BooruManager.swift
@@ -26,7 +26,7 @@ class BooruManager: ObservableObject {  // swiftlint:disable:this type_body_leng
   private let pageCache = NSCache<NSString, BooruPageCacheEntry>()  // swiftlint:disable:this legacy_objc_type
   private let cacheDuration: TimeInterval
   private let credentials: BooruProviderCredentials?
-  private let userAgent: String
+  private let userAgent: String?
   private let showHeldMoebooruPosts: Bool
   private var urlCache: [String: URL] = [:]
   private var lastPostCount = 0
@@ -48,6 +48,8 @@ class BooruManager: ObservableObject {  // swiftlint:disable:this type_body_leng
     _ provider: BooruProvider,
     credentials: BooruProviderCredentials? = nil,
     cacheDuration: TimeInterval = BooruPageCacheEntry.defaultExpiration,
+    sendUserAgent: Bool = true,
+    customUserAgent: String = "",
     showHeldMoebooruPosts: Bool = false
   ) {
     self.provider = provider
@@ -59,10 +61,10 @@ class BooruManager: ObservableObject {  // swiftlint:disable:this type_body_leng
     pageCache.countLimit = 50
     pageCache.totalCostLimit = 50 * 1_024 * 1_024
 
-    let version = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String ?? "1.0"
-    let buildNumber = Bundle.main.infoDictionary?["CFBundleVersion"] as? String ?? "1"
-
-    self.userAgent = "Sora/\(version) (Build \(buildNumber))"
+    self.userAgent = Self.resolvedUserAgent(
+      sendUserAgent: sendUserAgent,
+      customUserAgent: customUserAgent
+    )
 
     let rootQuery = BooruSearchQuery(
       provider: provider,
@@ -198,6 +200,26 @@ class BooruManager: ObservableObject {  // swiftlint:disable:this type_body_leng
     return components.url
   }
 
+  private static func resolvedUserAgent(
+    sendUserAgent: Bool,
+    customUserAgent: String
+  ) -> String? {
+    guard sendUserAgent else { return nil }
+
+    let trimmedCustomUserAgent = customUserAgent.trimmingCharacters(
+      in: .whitespacesAndNewlines
+    )
+
+    guard trimmedCustomUserAgent.isEmpty else {
+      return trimmedCustomUserAgent
+    }
+
+    let version = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String ?? "1.0"
+    let buildNumber = Bundle.main.infoDictionary?["CFBundleVersion"] as? String ?? "1"
+
+    return "Sora/\(version) (Build \(buildNumber))"
+  }
+
   func clearCachedPages() {
     pageCache.removeAllObjects()
     urlCache.removeAll()
@@ -571,7 +593,11 @@ class BooruManager: ObservableObject {  // swiftlint:disable:this type_body_leng
   }
 
   func requestURL(_ url: URL) async throws -> Data {
-    try await AF.request(url, headers: ["User-Agent": userAgent])
+    let headers = userAgent.map { value in
+      HTTPHeaders([HTTPHeader(name: "User-Agent", value: value)])
+    }
+
+    return try await AF.request(url, headers: headers)
       .validate(statusCode: 200..<300)
       .serializingData()
       .value
diff --git a/Sora/Data/Settings/SettingsManager.swift b/Sora/Data/Settings/SettingsManager.swift
index 78aef7c..f59db1a 100644
--- a/Sora/Data/Settings/SettingsManager.swift
+++ b/Sora/Data/Settings/SettingsManager.swift
@@ -38,6 +38,12 @@ class SettingsManager: ObservableObject {  // swiftlint:disable:this type_body_l
   @AppStorage("showHeldMoebooruPosts")
   var showHeldMoebooruPosts = false
 
+  @AppStorage("sendBooruUserAgent")
+  var sendBooruUserAgent = true
+
+  @AppStorage("customBooruUserAgent")
+  var customBooruUserAgent = ""
+
   private var syncObservation: NSObjectProtocol?
 
   #if os(macOS)