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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <google/protobuf/util/internal/json_objectwriter.h>
#include <cmath>
#include <cstdint>
#include <limits>
#include <google/protobuf/stubs/casts.h>
#include <google/protobuf/stubs/logging.h>
#include <google/protobuf/stubs/common.h>
#include <google/protobuf/util/internal/utility.h>
#include <google/protobuf/stubs/strutil.h>
#include <google/protobuf/util/internal/json_escaping.h>
namespace google {
namespace protobuf {
namespace util {
namespace converter {
JsonObjectWriter::~JsonObjectWriter() {
if (element_ && !element_->is_root()) {
GOOGLE_LOG(WARNING) << "JsonObjectWriter was not fully closed.";
}
}
JsonObjectWriter* JsonObjectWriter::StartObject(StringPiece name) {
WritePrefix(name);
WriteChar('{');
PushObject();
return this;
}
JsonObjectWriter* JsonObjectWriter::EndObject() {
Pop();
WriteChar('}');
if (element() && element()->is_root()) NewLine();
return this;
}
JsonObjectWriter* JsonObjectWriter::StartList(StringPiece name) {
WritePrefix(name);
WriteChar('[');
PushArray();
return this;
}
JsonObjectWriter* JsonObjectWriter::EndList() {
Pop();
WriteChar(']');
if (element()->is_root()) NewLine();
return this;
}
JsonObjectWriter* JsonObjectWriter::RenderBool(StringPiece name,
bool value) {
return RenderSimple(name, value ? "true" : "false");
}
JsonObjectWriter* JsonObjectWriter::RenderInt32(StringPiece name,
int32_t value) {
return RenderSimple(name, StrCat(value));
}
JsonObjectWriter* JsonObjectWriter::RenderUint32(StringPiece name,
uint32_t value) {
return RenderSimple(name, StrCat(value));
}
JsonObjectWriter* JsonObjectWriter::RenderInt64(StringPiece name,
int64_t value) {
WritePrefix(name);
WriteChar('"');
WriteRawString(StrCat(value));
WriteChar('"');
return this;
}
JsonObjectWriter* JsonObjectWriter::RenderUint64(StringPiece name,
uint64_t value) {
WritePrefix(name);
WriteChar('"');
WriteRawString(StrCat(value));
WriteChar('"');
return this;
}
JsonObjectWriter* JsonObjectWriter::RenderDouble(StringPiece name,
double value) {
if (std::isfinite(value)) {
return RenderSimple(name, SimpleDtoa(value));
}
// Render quoted with NaN/Infinity-aware DoubleAsString.
return RenderString(name, DoubleAsString(value));
}
JsonObjectWriter* JsonObjectWriter::RenderFloat(StringPiece name,
float value) {
if (std::isfinite(value)) {
return RenderSimple(name, SimpleFtoa(value));
}
// Render quoted with NaN/Infinity-aware FloatAsString.
return RenderString(name, FloatAsString(value));
}
JsonObjectWriter* JsonObjectWriter::RenderString(StringPiece name,
StringPiece value) {
WritePrefix(name);
WriteChar('"');
JsonEscaping::Escape(value, &sink_);
WriteChar('"');
return this;
}
JsonObjectWriter* JsonObjectWriter::RenderBytes(StringPiece name,
StringPiece value) {
WritePrefix(name);
std::string base64;
if (use_websafe_base64_for_bytes_)
WebSafeBase64EscapeWithPadding(std::string(value), &base64);
else
Base64Escape(value, &base64);
WriteChar('"');
// TODO(wpoon): Consider a ByteSink solution that writes the base64 bytes
// directly to the stream, rather than first putting them
// into a string and then writing them to the stream.
stream_->WriteRaw(base64.data(), base64.size());
WriteChar('"');
return this;
}
JsonObjectWriter* JsonObjectWriter::RenderNull(StringPiece name) {
return RenderSimple(name, "null");
}
JsonObjectWriter* JsonObjectWriter::RenderNullAsEmpty(StringPiece name) {
return RenderSimple(name, "");
}
void JsonObjectWriter::WritePrefix(StringPiece name) {
bool not_first = !element()->is_first();
if (not_first) WriteChar(',');
if (not_first || !element()->is_root()) NewLine();
if (!name.empty() || element()->is_json_object()) {
WriteChar('"');
if (!name.empty()) {
JsonEscaping::Escape(name, &sink_);
}
WriteRawString("\":");
if (!indent_string_.empty()) WriteChar(' ');
}
}
} // namespace converter
} // namespace util
} // namespace protobuf
} // namespace google
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