Reimplement #10068 in auth-swift after rebase

FirebaseAuth/Sources/Swift/AuthProvider/OAuthCredential.swift

@@ -37,6 +37,7 @@ import Foundation
   @objc public let OAuthResponseURLString: String?
   @objc public let sessionID: String?
   @objc public let pendingToken: String?
+  let fullName: PersonNameComponents?
   // private
   @objc public let rawNonce: String?
 
@@ -46,12 +47,14 @@ import Foundation
                     rawNonce: String? = nil,
                     accessToken: String? = nil,
                     secret: String? = nil,
+                    fullName: PersonNameComponents? = nil,
                     pendingToken: String? = nil) {
     self.idToken = idToken
     self.rawNonce = rawNonce
     self.accessToken = accessToken
     self.pendingToken = pendingToken
     self.secret = secret
+    self.fullName = fullName
     OAuthResponseURLString = nil
     sessionID = nil
     super.init(provider: providerID)
@@ -67,6 +70,7 @@ import Foundation
     secret = nil
     idToken = nil
     rawNonce = nil
+    fullName = nil
     super.init(provider: providerID)
   }
 
@@ -99,19 +103,21 @@ import Foundation
   public static var supportsSecureCoding: Bool = true
 
   public func encode(with coder: NSCoder) {
-    coder.encode(idToken)
-    coder.encode(rawNonce)
-    coder.encode(accessToken)
-    coder.encode(pendingToken)
-    coder.encode(secret)
+    coder.encode(idToken, forKey: "IDToken")
+    coder.encode(rawNonce, forKey: "rawNonce")
+    coder.encode(accessToken, forKey: "accessToken")
+    coder.encode(pendingToken, forKey: "pendingToken")
+    coder.encode(secret, forKey: "secret")
+    coder.encode(fullName, forKey: "fullName")
   }
 
   public required init?(coder: NSCoder) {
-    idToken = coder.decodeObject(forKey: "idToken") as? String
+    idToken = coder.decodeObject(forKey: "IDToken") as? String
     rawNonce = coder.decodeObject(forKey: "rawNonce") as? String
     accessToken = coder.decodeObject(forKey: "accessToken") as? String
     pendingToken = coder.decodeObject(forKey: "pendingToken") as? String
     secret = coder.decodeObject(forKey: "secret") as? String
+    fullName = coder.decodeObject(forKey: "fullName") as? PersonNameComponents
     OAuthResponseURLString = nil
     sessionID = nil
     super.init(provider: OAuthProvider.id)

FirebaseAuth/Sources/Swift/AuthProvider/OAuthProvider.swift

@@ -240,6 +240,28 @@ import CommonCrypto
       }
     }
 
+    /** @fn appleCredentialWithIDToken:rawNonce:fullName:
+     *  @brief Creates an `AuthCredential` for the Sign in with Apple OAuth 2 provider identified by ID
+     * token, raw nonce, and full name. This method is specific to the Sign in with Apple OAuth 2
+     * provider as this provider requires the full name to be passed explicitly.
+     *
+     *  @param idToken The IDToken associated with the Sign in with Apple Auth credential being created.
+     *  @param rawNonce The raw nonce associated with the Sign in with Apple Auth credential being
+     * created.
+     *  @param fullName The full name associated with the Sign in with Apple Auth credential being
+     * created.
+     *  @return An `AuthCredential`.
+     */
+    @objc(appleCredentialWithIDToken:rawNonce:fullName:)
+    public static func appleCredential(withIDToken idToken: String,
+                                       rawNonce: String?,
+                                       fullName: PersonNameComponents?) -> OAuthCredential {
+      return OAuthCredential(withProviderID: AuthProviderString.apple.rawValue,
+                             idToken: idToken,
+                             rawNonce: rawNonce,
+                             fullName: fullName)
+    }
+
     @available(iOS 13, tvOS 13, macOS 10.15, watchOS 8, *)
     public func credential(with UIDelegate: AuthUIDelegate?) async throws -> AuthCredential {
       return try await withCheckedThrowingContinuation { continuation in

FirebaseAuth/Sources/Swift/Backend/RPC/VerifyAssertionRequest.swift

@@ -95,6 +95,28 @@ private let kSessionIDKey = "sessionId"
  */
 private let kTenantIDKey = "tenantId"
 
+/** @var kUserKey
+    @brief The key for the "user" value in the request. The value is a JSON object that contains the
+   name of the user.
+ */
+private let kUserKey = "user"
+
+/** @var kNameKey
+    @brief The key for the "name" value in the request. The value is a JSON object that contains the
+   first and/or last name of the user.
+ */
+private let kNameKey = "name"
+
+/** @var kFirstNameKey
+    @brief The key for the "firstName" value in the request.
+ */
+private let kFirstNameKey = "firstName"
+
+/** @var kLastNameKey
+    @brief The key for the "lastName" value in the request.
+ */
+private let kLastNameKey = "lastName"
+
 /** @class FIRVerifyAssertionRequest
     @brief Represents the parameters for the verifyAssertion endpoint.
     @see https://developers.google.com/identity/toolkit/web/reference/relyingparty/verifyAssertion
@@ -170,6 +192,11 @@ private let kTenantIDKey = "tenantId"
    */
   @objc public var autoCreate: Bool = false
 
+  /** @property fullName
+      @brief A full name from the IdP.
+   */
+  @objc public var fullName: PersonNameComponents?
+
   /** @var response
       @brief The corresponding response for this request
    */
@@ -210,6 +237,24 @@ private let kTenantIDKey = "tenantId"
       queryItems.append(URLQueryItem(name: kIdentifierKey, value: inputEmail))
     }
 
+    if fullName?.givenName != nil || fullName?.familyName != nil {
+      var nameDict = [String: String]()
+      if let given = fullName?.givenName {
+        nameDict[kFirstNameKey] = given
+      }
+      if let lastName = fullName?.familyName {
+        nameDict[kLastNameKey] = lastName
+      }
+      let userDict = [kNameKey: nameDict]
+      do {
+        let userJson = try JSONSerialization.data(withJSONObject: userDict)
+        let jsonString = String(data: userJson, encoding: .utf8)
+        queryItems.append(URLQueryItem(name: kUserKey, value: jsonString))
+      } catch {
+        fatalError("Auth Internal error: failed to serialize dictionary to json: \(error)")
+      }
+    }
+
     components.queryItems = queryItems
 
     var body: [String: AnyHashable] = [