// Copyright 2014 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 #include "base/android/jni_android.h" #include "base/android/jni_string.h" #include "base/strings/string_piece.h" #include "net/base/net_string_util.h" #include "net/net_jni_headers/NetStringUtil_jni.h" using base::android::ScopedJavaLocalRef; namespace net { namespace { // Attempts to convert |text| encoded in |charset| to a jstring (Java unicode // string). Returns the result jstring, or NULL on failure. ScopedJavaLocalRef ConvertToJstring(base::StringPiece text, const char* charset) { JNIEnv* env = base::android::AttachCurrentThread(); ScopedJavaLocalRef java_byte_buffer( env, env->NewDirectByteBuffer(const_cast(text.data()), text.length())); base::android::CheckException(env); base::android::ScopedJavaLocalRef java_charset = base::android::ConvertUTF8ToJavaString(env, base::StringPiece(charset)); ScopedJavaLocalRef java_result = android::Java_NetStringUtil_convertToUnicode(env, java_byte_buffer, java_charset); return java_result; } // Attempts to convert |text| encoded in |charset| to a jstring (Java unicode // string) and then normalizes the string. Returns the result jstring, or NULL // on failure. ScopedJavaLocalRef ConvertToNormalizedJstring(base::StringPiece text, const char* charset) { JNIEnv* env = base::android::AttachCurrentThread(); ScopedJavaLocalRef java_byte_buffer( env, env->NewDirectByteBuffer(const_cast(text.data()), text.length())); base::android::CheckException(env); base::android::ScopedJavaLocalRef java_charset = base::android::ConvertUTF8ToJavaString(env, base::StringPiece(charset)); ScopedJavaLocalRef java_result = android::Java_NetStringUtil_convertToUnicodeAndNormalize( env, java_byte_buffer, java_charset); return java_result; } // Converts |text| encoded in |charset| to a jstring (Java unicode string). // Any characters that can not be converted are replaced with U+FFFD. ScopedJavaLocalRef ConvertToJstringWithSubstitutions( base::StringPiece text, const char* charset) { JNIEnv* env = base::android::AttachCurrentThread(); ScopedJavaLocalRef java_byte_buffer( env, env->NewDirectByteBuffer(const_cast(text.data()), text.length())); base::android::CheckException(env); base::android::ScopedJavaLocalRef java_charset = base::android::ConvertUTF8ToJavaString(env, base::StringPiece(charset)); ScopedJavaLocalRef java_result = android::Java_NetStringUtil_convertToUnicodeWithSubstitutions( env, java_byte_buffer, java_charset); return java_result; } } // namespace // This constant cannot be defined as const char[] because it is initialized // by base::kCodepageLatin1 (which is const char[]) in net_string_util_icu.cc. const char* const kCharsetLatin1 = "ISO-8859-1"; bool ConvertToUtf8(base::StringPiece text, const char* charset, std::string* output) { output->clear(); ScopedJavaLocalRef java_result = ConvertToJstring(text, charset); if (java_result.is_null()) return false; *output = base::android::ConvertJavaStringToUTF8(java_result); return true; } bool ConvertToUtf8AndNormalize(base::StringPiece text, const char* charset, std::string* output) { output->clear(); ScopedJavaLocalRef java_result = ConvertToNormalizedJstring( text, charset); if (java_result.is_null()) return false; *output = base::android::ConvertJavaStringToUTF8(java_result); return true; } bool ConvertToUTF16(base::StringPiece text, const char* charset, std::u16string* output) { output->clear(); ScopedJavaLocalRef java_result = ConvertToJstring(text, charset); if (java_result.is_null()) return false; *output = base::android::ConvertJavaStringToUTF16(java_result); return true; } bool ConvertToUTF16WithSubstitutions(base::StringPiece text, const char* charset, std::u16string* output) { output->clear(); ScopedJavaLocalRef java_result = ConvertToJstringWithSubstitutions(text, charset); if (java_result.is_null()) return false; *output = base::android::ConvertJavaStringToUTF16(java_result); return true; } bool ToUpper(base::StringPiece16 str, std::u16string* output) { output->clear(); JNIEnv* env = base::android::AttachCurrentThread(); ScopedJavaLocalRef java_new_str( env, env->NewString(reinterpret_cast(str.data()), str.length())); if (java_new_str.is_null()) return false; ScopedJavaLocalRef java_result = android::Java_NetStringUtil_toUpperCase(env, java_new_str); if (java_result.is_null()) return false; *output = base::android::ConvertJavaStringToUTF16(java_result); return true; } } // namespace net