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 14 // Must come after all headers that specialize FromJniType() / ToJniType(). 15 #include "url/url_jni_headers/IDNStringUtil_jni.h" 16 17 using base::android::ScopedJavaLocalRef; 18 19 namespace url { 20 21 // This uses the JDK's conversion function, which uses IDNA 2003, unlike the 22 // ICU implementation. IDNToASCII(std::u16string_view src,CanonOutputW * output)23bool IDNToASCII(std::u16string_view src, CanonOutputW* output) { 24 DCHECK_EQ(0u, output->length()); // Output buffer is assumed empty. 25 26 JNIEnv* env = base::android::AttachCurrentThread(); 27 base::android::ScopedJavaLocalRef<jstring> java_src = 28 base::android::ConvertUTF16ToJavaString(env, src); 29 ScopedJavaLocalRef<jstring> java_result = 30 android::Java_IDNStringUtil_idnToASCII(env, java_src); 31 // NULL indicates failure. 32 if (java_result.is_null()) 33 return false; 34 35 std::u16string utf16_result = 36 base::android::ConvertJavaStringToUTF16(java_result); 37 output->Append(utf16_result.data(), utf16_result.size()); 38 return true; 39 } 40 41 } // namespace url 42