Decouples certificates viewers from NSS to prepare support for OpenSSL.

chrome/common/net/x509_certificate_model.cc

Index: chrome/common/net/x509_certificate_model.cc
diff --git a/chrome/common/net/x509_certificate_model.cc b/chrome/common/net/x509_certificate_model.cc
new file mode 100644
index 0000000000000000000000000000000000000000..5f396852d5e8fef6e185c9ebb5b9d584cd4fed69
--- /dev/null
+++ b/chrome/common/net/x509_certificate_model.cc
@@ -0,0 +1,53 @@
+// Copyright (c) 2010 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 "chrome/common/net/x509_certificate_model.h"
+
+#include <unicode/uidna.h>
+
+#include "app/l10n_util.h"
+#include "base/utf_string_conversions.h"
+#include "grit/generated_resources.h"
+
+namespace x509_certificate_model {
+
+std::string ProcessIDN(const std::string& input) {
+  // Convert the ASCII input to a string16 for ICU.
+  string16 input16;
+  input16.reserve(input.length());
+  std::copy(input.begin(), input.end(), std::back_inserter(input16));
+
+  string16 output16;
+  output16.resize(input.length());
+
+  UErrorCode status = U_ZERO_ERROR;
+  int output_chars = uidna_IDNToUnicode(input16.data(), input.length(),
+                                        &output16[0], output16.length(),
+                                        UIDNA_DEFAULT, NULL, &status);
+  if (status == U_ZERO_ERROR) {
+    output16.resize(output_chars);
+  } else if (status != U_BUFFER_OVERFLOW_ERROR) {
+    return input;
+  } else {
+    output16.resize(output_chars);
+    output_chars = uidna_IDNToUnicode(input16.data(), input.length(),
+                                      &output16[0], output16.length(),
+                                      UIDNA_DEFAULT, NULL, &status);
+    if (status != U_ZERO_ERROR)
+      return input;
+    DCHECK_EQ(static_cast<size_t>(output_chars), output16.length());
+    output16.resize(output_chars);  // Just to be safe.
+  }
+
+  if (input16 == output16)
+    return input;  // Input did not contain any encoded data.
+
+  // Input contained encoded data, return formatted string showing original and
+  // decoded forms.
+  return l10n_util::GetStringFUTF8(IDS_CERT_INFO_IDN_VALUE_FORMAT,
+                                   input16, output16);
+}
+
+}  // x509_certificate_model
+