mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-28 08:16:09 +03:00
127 lines
3.7 KiB
C++
127 lines
3.7 KiB
C++
// Copyright (c) 2012 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 "base/json/json_reader.h"
|
|
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
#include "base/json/json_parser.h"
|
|
#include "base/logging.h"
|
|
#include "base/optional.h"
|
|
#include "base/values.h"
|
|
|
|
namespace base {
|
|
|
|
// Chosen to support 99.9% of documents found in the wild late 2016.
|
|
// http://crbug.com/673263
|
|
const int JSONReader::kStackMaxDepth = 200;
|
|
|
|
// Values 1000 and above are used by JSONFileValueSerializer::JsonFileError.
|
|
static_assert(JSONReader::JSON_PARSE_ERROR_COUNT < 1000,
|
|
"JSONReader error out of bounds");
|
|
|
|
const char JSONReader::kInvalidEscape[] =
|
|
"Invalid escape sequence.";
|
|
const char JSONReader::kSyntaxError[] =
|
|
"Syntax error.";
|
|
const char JSONReader::kUnexpectedToken[] =
|
|
"Unexpected token.";
|
|
const char JSONReader::kTrailingComma[] =
|
|
"Trailing comma not allowed.";
|
|
const char JSONReader::kTooMuchNesting[] =
|
|
"Too much nesting.";
|
|
const char JSONReader::kUnexpectedDataAfterRoot[] =
|
|
"Unexpected data after root element.";
|
|
const char JSONReader::kUnsupportedEncoding[] =
|
|
"Unsupported encoding. JSON must be UTF-8.";
|
|
const char JSONReader::kUnquotedDictionaryKey[] =
|
|
"Dictionary keys must be quoted.";
|
|
const char JSONReader::kInputTooLarge[] =
|
|
"Input string is too large (>2GB).";
|
|
|
|
JSONReader::JSONReader(int options, int max_depth)
|
|
: parser_(new internal::JSONParser(options, max_depth)) {}
|
|
|
|
JSONReader::~JSONReader() = default;
|
|
|
|
// static
|
|
std::unique_ptr<Value> JSONReader::Read(StringPiece json,
|
|
int options,
|
|
int max_depth) {
|
|
internal::JSONParser parser(options, max_depth);
|
|
Optional<Value> root = parser.Parse(json);
|
|
return root ? std::make_unique<Value>(std::move(*root)) : nullptr;
|
|
}
|
|
|
|
|
|
// static
|
|
std::unique_ptr<Value> JSONReader::ReadAndReturnError(
|
|
StringPiece json,
|
|
int options,
|
|
int* error_code_out,
|
|
std::string* error_msg_out,
|
|
int* error_line_out,
|
|
int* error_column_out) {
|
|
internal::JSONParser parser(options);
|
|
Optional<Value> root = parser.Parse(json);
|
|
if (!root) {
|
|
if (error_code_out)
|
|
*error_code_out = parser.error_code();
|
|
if (error_msg_out)
|
|
*error_msg_out = parser.GetErrorMessage();
|
|
if (error_line_out)
|
|
*error_line_out = parser.error_line();
|
|
if (error_column_out)
|
|
*error_column_out = parser.error_column();
|
|
}
|
|
|
|
return root ? std::make_unique<Value>(std::move(*root)) : nullptr;
|
|
}
|
|
|
|
// static
|
|
std::string JSONReader::ErrorCodeToString(JsonParseError error_code) {
|
|
switch (error_code) {
|
|
case JSON_NO_ERROR:
|
|
return std::string();
|
|
case JSON_INVALID_ESCAPE:
|
|
return kInvalidEscape;
|
|
case JSON_SYNTAX_ERROR:
|
|
return kSyntaxError;
|
|
case JSON_UNEXPECTED_TOKEN:
|
|
return kUnexpectedToken;
|
|
case JSON_TRAILING_COMMA:
|
|
return kTrailingComma;
|
|
case JSON_TOO_MUCH_NESTING:
|
|
return kTooMuchNesting;
|
|
case JSON_UNEXPECTED_DATA_AFTER_ROOT:
|
|
return kUnexpectedDataAfterRoot;
|
|
case JSON_UNSUPPORTED_ENCODING:
|
|
return kUnsupportedEncoding;
|
|
case JSON_UNQUOTED_DICTIONARY_KEY:
|
|
return kUnquotedDictionaryKey;
|
|
case JSON_TOO_LARGE:
|
|
return kInputTooLarge;
|
|
case JSON_PARSE_ERROR_COUNT:
|
|
break;
|
|
}
|
|
NOTREACHED();
|
|
return std::string();
|
|
}
|
|
|
|
std::unique_ptr<Value> JSONReader::ReadToValue(StringPiece json) {
|
|
Optional<Value> value = parser_->Parse(json);
|
|
return value ? std::make_unique<Value>(std::move(*value)) : nullptr;
|
|
}
|
|
|
|
JSONReader::JsonParseError JSONReader::error_code() const {
|
|
return parser_->error_code();
|
|
}
|
|
|
|
std::string JSONReader::GetErrorMessage() const {
|
|
return parser_->GetErrorMessage();
|
|
}
|
|
|
|
} // namespace base
|