1 files changed, 22 insertions, 0 deletions
diff --git a/Firebase/Auth/Source/FIRAuthErrorUtils.m b/Firebase/Auth/Source/FIRAuthErrorUtils.m
index 62c569c..b91231a 100644
--- a/Firebase/Auth/Source/FIRAuthErrorUtils.m
+++ b/Firebase/Auth/Source/FIRAuthErrorUtils.m
@@ -413,6 +413,12 @@ static NSString *const kFIRAuthErrorMessageNullUser = @"A null user object was p
 static NSString *const kFIRAuthErrorMessageInternalError = @"An internal error has occurred, "
     "print and inspect the error details for more information.";
 
+/** @var kFIRAuthErrorMessageMalformedJWT
+    @brief Error message constant describing @c FIRAuthErrorCodeMalformedJWT errors.
+ */
+static NSString *const kFIRAuthErrorMessageMalformedJWT =
+    @"Failed to parse JWT. Check the userInfo dictionary for the full token.";
+
 /** @var FIRAuthErrorDescription
     @brief The error descrioption, based on the error code.
     @remarks No default case so that we get a compiler warning if a new value was added to the enum.
@@ -531,6 +537,8 @@ static NSString *FIRAuthErrorDescription(FIRAuthErrorCode code) {
       return kFIRAuthErrorMessageNullUser;
     case FIRAuthErrorCodeWebInternalError:
       return kFIRAuthErrorMessageWebInternalError;
+    case FIRAuthErrorCodeMalformedJWT:
+      return kFIRAuthErrorMessageMalformedJWT;
   }
 }
 
@@ -652,6 +660,8 @@ static NSString *const FIRAuthErrorCodeString(FIRAuthErrorCode code) {
       return @"ERROR_NULL_USER";
     case FIRAuthErrorCodeWebInternalError:
       return @"ERROR_WEB_INTERNAL_ERROR";
+    case FIRAuthErrorCodeMalformedJWT:
+      return @"ERROR_MALFORMED_JWT";
   }
 }
 
@@ -735,6 +745,18 @@ static NSString *const FIRAuthErrorCodeString(FIRAuthErrorCode code) {
   }];
 }
 
++ (NSError *)malformedJWTErrorWithToken:(NSString *)token
+                        underlyingError:(NSError *_Nullable)underlyingError {
+  NSMutableDictionary *userInfo =
+      [NSMutableDictionary dictionaryWithObject:kFIRAuthErrorMessageMalformedJWT
+                                         forKey:NSLocalizedDescriptionKey];
+  [userInfo setObject:token forKey:FIRAuthErrorUserInfoDataKey];
+  if (underlyingError != nil) {
+    [userInfo setObject:underlyingError forKey:NSUnderlyingErrorKey];
+  }
+  return [self errorWithCode:FIRAuthInternalErrorCodeMalformedJWT userInfo:[userInfo copy]];
+}
+
 + (NSError *)unexpectedResponseWithData:(NSData *)data
                         underlyingError:(NSError *)underlyingError {
   return [self errorWithCode:FIRAuthInternalErrorCodeUnexpectedResponse userInfo:@{