1 // Copyright 2014 The Chromium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
10 #include "base/android/jni_android.h"
11 #include "base/android/jni_string.h"
12 #include "url/url_canon_internal.h"
13 #include "url/url_jni_headers/IDNStringUtil_jni.h"
15 using base::android::ScopedJavaLocalRef;
19 // This uses the JDK's conversion function, which uses IDNA 2003, unlike the
20 // ICU implementation.
21 bool IDNToASCII(std::u16string_view src, CanonOutputW* output) {
22 DCHECK_EQ(0u, output->length()); // Output buffer is assumed empty.
24 JNIEnv* env = base::android::AttachCurrentThread();
25 base::android::ScopedJavaLocalRef<jstring> java_src =
26 base::android::ConvertUTF16ToJavaString(env, src);
27 ScopedJavaLocalRef<jstring> java_result =
28 android::Java_IDNStringUtil_idnToASCII(env, java_src);
29 // NULL indicates failure.
30 if (java_result.is_null())
33 std::u16string utf16_result =
34 base::android::ConvertJavaStringToUTF16(java_result);
35 output->Append(utf16_result.data(), utf16_result.size());