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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
#ifndef SRC_NODE_I18N_H_
#define SRC_NODE_I18N_H_
#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#if defined(NODE_HAVE_I18N_SUPPORT)
#include "base_object.h"
#include "env.h"
#include "util.h"
#include "v8.h"
#include <unicode/ucnv.h>
#include <string>
namespace node {
namespace i18n {
bool InitializeICUDirectory(const std::string& path);
enum idna_mode {
// Default mode for maximum compatibility.
IDNA_DEFAULT,
// Ignore all errors in IDNA conversion, if possible.
IDNA_LENIENT,
// Enforce STD3 rules (UseSTD3ASCIIRules) and DNS length restrictions
// (VerifyDnsLength). Corresponds to `beStrict` flag in the "domain to ASCII"
// algorithm.
IDNA_STRICT
};
// Implements the WHATWG URL Standard "domain to ASCII" algorithm.
// https://url.spec.whatwg.org/#concept-domain-to-ascii
int32_t ToASCII(MaybeStackBuffer<char>* buf,
const char* input,
size_t length,
enum idna_mode mode = IDNA_DEFAULT);
// Implements the WHATWG URL Standard "domain to Unicode" algorithm.
// https://url.spec.whatwg.org/#concept-domain-to-unicode
int32_t ToUnicode(MaybeStackBuffer<char>* buf,
const char* input,
size_t length);
struct ConverterDeleter {
void operator()(UConverter* pointer) const { ucnv_close(pointer); }
};
using ConverterPointer = std::unique_ptr<UConverter, ConverterDeleter>;
class Converter {
public:
explicit Converter(const char* name, const char* sub = nullptr);
explicit Converter(UConverter* converter, const char* sub = nullptr);
UConverter* conv() const { return conv_.get(); }
size_t max_char_size() const;
size_t min_char_size() const;
void reset();
void set_subst_chars(const char* sub = nullptr);
private:
ConverterPointer conv_;
};
class ConverterObject : public BaseObject, Converter {
public:
enum ConverterFlags {
CONVERTER_FLAGS_FLUSH = 0x1,
CONVERTER_FLAGS_FATAL = 0x2,
CONVERTER_FLAGS_IGNORE_BOM = 0x4,
CONVERTER_FLAGS_UNICODE = 0x8,
CONVERTER_FLAGS_BOM_SEEN = 0x10,
};
static void Create(const v8::FunctionCallbackInfo<v8::Value>& args);
static void Decode(const v8::FunctionCallbackInfo<v8::Value>& args);
static void Has(const v8::FunctionCallbackInfo<v8::Value>& args);
SET_NO_MEMORY_INFO()
SET_MEMORY_INFO_NAME(ConverterObject)
SET_SELF_SIZE(ConverterObject)
protected:
ConverterObject(Environment* env,
v8::Local<v8::Object> wrap,
UConverter* converter,
int flags,
const char* sub = nullptr);
void set_bom_seen(bool seen) {
if (seen)
flags_ |= CONVERTER_FLAGS_BOM_SEEN;
else
flags_ &= ~CONVERTER_FLAGS_BOM_SEEN;
}
bool bom_seen() const {
return (flags_ & CONVERTER_FLAGS_BOM_SEEN) == CONVERTER_FLAGS_BOM_SEEN;
}
bool unicode() const {
return (flags_ & CONVERTER_FLAGS_UNICODE) == CONVERTER_FLAGS_UNICODE;
}
bool ignore_bom() const {
return (flags_ & CONVERTER_FLAGS_IGNORE_BOM) == CONVERTER_FLAGS_IGNORE_BOM;
}
private:
int flags_ = 0;
};
} // namespace i18n
} // namespace node
#endif // NODE_HAVE_I18N_SUPPORT
#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#endif // SRC_NODE_I18N_H_
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