Merge from private/auth-master (#159)

* Adds passing state and continue URL in OOBCodes actions. (#82)

* Adds actionCodeSettings class (#83)

* Adds FIRActionCodeSettings class

* Removes iOSAppStoreId to reflect update spec.

* Adds “reset password in app” to sample app (#84)

* Adds “reset password in app” to sample app

* Addresses comments

* Addresses comments

* Adds @param documentation for actionCodeSettings (#85)

Adds @param documentation for actionCodeSettings in FIRGetOOBConfirmationCodeRequest.

* Adds request configuration class

Adds a class that will comprise of all configurations needed to make a request to the Firebase Auth backend; including APIKey and Language code in the future.

* Addresses comments.

* Adds Setting Language

Add Setting Language Feature to Firebase Auth.

- Only adds support for two languages (English and Spanish) in this change. (Also supports two languages in test), more to come after this change is accepted.

- For now sample app tests language setting only when using “reset password in app” option, the email sent will be in the current app language.  Additional tests to come after change is accepted.

* Amends code for unit tests

Will add more comprehensive testing when code accepted.

* Ecodes strings files in UTF-8

* Addresses comments

* Addresses comments

* Remove comments in .strings

* Adds remaining TC languages to Firebase Auth.

* Add line break to .strings files

* remove language code english fallback

Remove the fallback that sends “en” as the language code to the backend if no language code is specified.

* addresses comment

* Fixes FIRSecureToken Crash

Integrates FIRSecureTokenService and FIRSecureTokenRequest with FIRAuthRequestConfiguration.

* Addresses comment

* Add auth language input

Adds Auth language input to the Sample App in preparation for manual testing.

* removes unnecessary comment

* address comments

* Add app language option

Allow user to set the current app language code as the auth language code.  This is in preparation for manual testing before release.

* Addresses Comment

* Adds missing continue URI

Adds missing continue URL to Firebear error handling.

* Remove unused line

Removes unused line from FIRPhoneAuthProvider.m

* Moves the new public header to the right place.

* Fixes broken macOS build.

* Removes trailing spaces.

* Addresses review comments.

1 files changed, 21 insertions, 7 deletions

diff --git a/Firebase/Auth/Source/RPCs/FIRSecureTokenRequest.m b/Firebase/Auth/Source/RPCs/FIRSecureTokenRequest.m
index 1983542..9c39e1e 100644
--- a/Firebase/Auth/Source/RPCs/FIRSecureTokenRequest.m
+++ b/Firebase/Auth/Source/RPCs/FIRSecureTokenRequest.m
@@ -15,6 +15,7 @@
  */
 
 #import "FIRSecureTokenRequest.h"
+#import "FIRAuthRequestConfiguration.h"
 
 /** @var kFIRSecureTokenServiceGetTokenURLFormat
     @brief The format of the secure token service URLs. Requires string format substitution with
@@ -57,23 +58,31 @@ static NSString *const kCodeKey = @"code";
  */
 static NSString *gAPIHost = @"securetoken.googleapis.com";
 
-@implementation FIRSecureTokenRequest
+@implementation FIRSecureTokenRequest {
+  /** @var _requestConfiguration
+      @brief Contains configuration relevant to the request.
+   */
+  FIRAuthRequestConfiguration *_requestConfiguration;
+}
 
-+ (FIRSecureTokenRequest *)authCodeRequestWithCode:(NSString *)code APIKey:(NSString *)APIKey {
++ (FIRSecureTokenRequest *)authCodeRequestWithCode:(NSString *)code
+                                     requestConfiguration:(FIRAuthRequestConfiguration *)
+                                         requestConfiguration {
   return [[self alloc] initWithGrantType:FIRSecureTokenRequestGrantTypeAuthorizationCode
                                    scope:nil
                             refreshToken:nil
                                     code:code
-                                  APIKey:APIKey];
+                    requestConfiguration:requestConfiguration];
 }
 
 + (FIRSecureTokenRequest *)refreshRequestWithRefreshToken:(NSString *)refreshToken
-                                                   APIKey:(NSString *)APIKey {
+                                     requestConfiguration:(FIRAuthRequestConfiguration *)
+                                         requestConfiguration {
   return [[self alloc] initWithGrantType:FIRSecureTokenRequestGrantTypeRefreshToken
                                    scope:nil
                             refreshToken:refreshToken
                                     code:nil
-                                  APIKey:APIKey];
+                    requestConfiguration:requestConfiguration];
 }
 
 /** @fn grantTypeStringWithGrantType:
@@ -93,18 +102,23 @@ static NSString *gAPIHost = @"securetoken.googleapis.com";
                                      scope:(nullable NSString *)scope
                               refreshToken:(nullable NSString *)refreshToken
                                       code:(nullable NSString *)code
-                                    APIKey:(NSString *)APIKey {
+                      requestConfiguration:(FIRAuthRequestConfiguration *)requestConfiguration {
   self = [super init];
   if (self) {
     _grantType = grantType;
     _scope = [scope copy];
     _refreshToken = [refreshToken copy];
     _code = [code copy];
-    _APIKey = [APIKey copy];
+    _APIKey = [requestConfiguration.APIKey copy];
+    _requestConfiguration = requestConfiguration;
   }
   return self;
 }
 
+- (FIRAuthRequestConfiguration *)requestConfiguration {
+  return _requestConfiguration;
+}
+
 - (NSURL *)requestURL {
   NSString *URLString =
       [NSString stringWithFormat:kFIRSecureTokenServiceGetTokenURLFormat, gAPIHost, _APIKey];