Introduce CertErrors::ToDebugString().

net/tools/cert_verify_tool/verify_using_path_builder.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/tools/cert_verify_tool/verify_using_path_builder.h"
 
 #include <iostream>
 
 #include "base/memory/ptr_util.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 101 matching lines @@
   // the normalized subject.
   if (trust_anchor->cert())
     return SubjectFromParsedCertificate(trust_anchor->cert().get());
 
   net::RDNSequence parsed_subject;
   if (!net::ParseNameValue(trust_anchor->normalized_subject(), &parsed_subject))
     return std::string();
   return SubjectToString(parsed_subject);
 }
 
-void PrintCertErrors(const net::CertErrors& errors) {
-  // TODO(crbug.com/634443): Include more detailed error information. Also this
-  // should likely be extracted to a common location and used by unit-tests and
-  // other debugging needs.
-  for (const auto& error : errors.errors()) {
-    std::cout << " " << error.type << "\n";
-  }
-}
-
 // Dumps a ResultPath to std::cout.
 void PrintResultPath(const net::CertPathBuilder::ResultPath* result_path,
                      size_t index,
                      bool is_best) {
   std::cout << "path " << index << " "
             << (result_path->valid ? "valid" : "invalid")
             << (is_best ? " (best)" : "") << "\n";
 
   // Print the certificate chain.
   for (const auto& cert : result_path->path.certs) {
     std::cout << " " << FingerPrintParsedCertificate(cert.get()) << " "
               << SubjectFromParsedCertificate(cert.get()) << "\n";
   }
 
   // Print the trust anchor (if there was one).
   const auto& trust_anchor = result_path->path.trust_anchor;
   if (trust_anchor) {
     std::string trust_anchor_cert_fingerprint = "<no cert>";
     if (trust_anchor->cert()) {
       trust_anchor_cert_fingerprint =
           FingerPrintParsedCertificate(trust_anchor->cert().get());
     }
     std::cout << " " << trust_anchor_cert_fingerprint << " "
               << SubjectFromTrustAnchor(trust_anchor.get()) << "\n";
   }
 
   // Print the errors.
   if (!result_path->errors.errors().empty()) {
     std::cout << "Errors:\n";
-    PrintCertErrors(result_path->errors);
+    std::cout << result_path->errors.ToDebugString() << "\n";
   }
 }
 
 }  // namespace
 
 // Verifies |target_der_cert| using CertPathBuilder.
 bool VerifyUsingPathBuilder(
     const CertInput& target_der_cert,
     const std::vector<CertInput>& intermediate_der_certs,
     const std::vector<CertInput>& root_der_certs,
@@ skipping 98 matching lines @@
     if (!DumpParsedCertificateChain(
             dump_prefix_path.AddExtension(
                 FILE_PATH_LITERAL(".CertPathBuilder.pem")),
             result.paths[result.best_result_index]->path)) {
       return false;
     }
   }
 
   return result.HasValidPath();
 }