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. 4 5 #include <string.h> 6 7 #include <string> 8 #include <string_view> 9 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" 14 15 using base::android::ScopedJavaLocalRef; 16 17 namespace url { 18 19 // This uses the JDK's conversion function, which uses IDNA 2003, unlike the 20 // ICU implementation. IDNToASCII(std::u16string_view src,CanonOutputW * output)21bool IDNToASCII(std::u16string_view src, CanonOutputW* output) { 22 DCHECK_EQ(0u, output->length()); // Output buffer is assumed empty. 23 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()) 31 return false; 32 33 std::u16string utf16_result = 34 base::android::ConvertJavaStringToUTF16(java_result); 35 output->Append(utf16_result.data(), utf16_result.size()); 36 return true; 37 } 38 39 } // namespace url 40