1 files changed, 21 insertions, 9 deletions
diff --git a/chromium/components/cryptauth/cryptauth_api_call_flow.cc b/chromium/components/cryptauth/cryptauth_api_call_flow.cc
index 40023c46251..4f6f17cb0f8 100644
--- a/chromium/components/cryptauth/cryptauth_api_call_flow.cc
+++ b/chromium/components/cryptauth/cryptauth_api_call_flow.cc
@@ -4,6 +4,7 @@
 
 #include "components/cryptauth/cryptauth_api_call_flow.h"
 
+#include "base/optional.h"
 #include "base/strings/string_number_conversions.h"
 #include "chromeos/components/proximity_auth/logging/logging.h"
 #include "net/traffic_annotation/network_traffic_annotation.h"
@@ -13,9 +14,21 @@ namespace cryptauth {
 
 namespace {
 
-const char kResponseBodyError[] = "Failed to get response body";
-const char kRequestFailedError[] = "Request failed";
-const char kHttpStatusErrorPrefix[] = "HTTP status: ";
+NetworkRequestError GetErrorForHttpResponseCode(int response_code) {
+  if (response_code == 400)
+    return NetworkRequestError::kBadRequest;
+
+  if (response_code == 403)
+    return NetworkRequestError::kAuthenticationError;
+
+  if (response_code == 404)
+    return NetworkRequestError::kEndpointNotFound;
+
+  if (response_code >= 500 && response_code < 600)
+    return NetworkRequestError::kInternalServerError;
+
+  return NetworkRequestError::kUnknown;
+}
 
 }  // namespace
 
@@ -59,7 +72,7 @@ void CryptAuthApiCallFlow::ProcessApiCallSuccess(
     const net::URLFetcher* source) {
   std::string serialized_response;
   if (!source->GetResponseAsString(&serialized_response)) {
-    error_callback_.Run(kResponseBodyError);
+    error_callback_.Run(NetworkRequestError::kResponseMalformed);
     return;
   }
   result_callback_.Run(serialized_response);
@@ -67,18 +80,17 @@ void CryptAuthApiCallFlow::ProcessApiCallSuccess(
 
 void CryptAuthApiCallFlow::ProcessApiCallFailure(
     const net::URLFetcher* source) {
-  std::string error_message;
+  base::Optional<NetworkRequestError> error;
   if (source->GetStatus().status() == net::URLRequestStatus::SUCCESS) {
-    error_message =
-        kHttpStatusErrorPrefix + base::IntToString(source->GetResponseCode());
+    error = GetErrorForHttpResponseCode(source->GetResponseCode());
   } else {
-    error_message = kRequestFailedError;
+    error = NetworkRequestError::kOffline;
   }
 
   std::string response;
   source->GetResponseAsString(&response);
   PA_LOG(INFO) << "API call failed:\n" << response;
-  error_callback_.Run(error_message);
+  error_callback_.Run(*error);
 }
 
 net::PartialNetworkTrafficAnnotationTag