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f403531f97
6c19d050a9 Merge bitcoin-core/univalue-subtree#33: Add getInt<Integral>() helper 09e4a930fc Add getInt helper 10619e0d9a Merge bitcoin-core/univalue#32: refactor: include-what-you-use 431cdf5d27 refactor: use constexpr where appropriate 64fc881fa4 refactor: cleanup headers for iwyu 9c35bf38eb Merge bitcoin-core/univalue-subtree#30: doc: note that our API has diverged from upstream 09b65facb9 doc: note that our API has diverged from upstream git-subtree-dir: src/univalue git-subtree-split: 6c19d050a9bcb2be216121db0df57c930a9ee12e
98 lines
2.5 KiB
C++
98 lines
2.5 KiB
C++
// Copyright 2014 BitPay Inc.
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// Copyright 2015 Bitcoin Core Developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or https://opensource.org/licenses/mit-license.php.
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#include <univalue.h>
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#include <cerrno>
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#include <cstdint>
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#include <cstdlib>
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#include <cstring>
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#include <limits>
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#include <locale>
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#include <sstream>
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#include <stdexcept>
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#include <string>
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#include <vector>
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namespace
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{
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static bool ParsePrechecks(const std::string& str)
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{
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if (str.empty()) // No empty string allowed
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return false;
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if (str.size() >= 1 && (json_isspace(str[0]) || json_isspace(str[str.size()-1]))) // No padding allowed
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return false;
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if (str.size() != strlen(str.c_str())) // No embedded NUL characters allowed
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return false;
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return true;
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}
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bool ParseDouble(const std::string& str, double *out)
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{
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if (!ParsePrechecks(str))
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return false;
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if (str.size() >= 2 && str[0] == '0' && str[1] == 'x') // No hexadecimal floats allowed
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return false;
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std::istringstream text(str);
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text.imbue(std::locale::classic());
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double result;
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text >> result;
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if(out) *out = result;
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return text.eof() && !text.fail();
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}
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}
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const std::vector<std::string>& UniValue::getKeys() const
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{
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if (typ != VOBJ)
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throw std::runtime_error("JSON value is not an object as expected");
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return keys;
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}
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const std::vector<UniValue>& UniValue::getValues() const
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{
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if (typ != VOBJ && typ != VARR)
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throw std::runtime_error("JSON value is not an object or array as expected");
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return values;
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}
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bool UniValue::get_bool() const
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{
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if (typ != VBOOL)
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throw std::runtime_error("JSON value is not a boolean as expected");
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return getBool();
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}
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const std::string& UniValue::get_str() const
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{
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if (typ != VSTR)
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throw std::runtime_error("JSON value is not a string as expected");
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return getValStr();
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}
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double UniValue::get_real() const
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{
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if (typ != VNUM)
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throw std::runtime_error("JSON value is not a number as expected");
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double retval;
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if (!ParseDouble(getValStr(), &retval))
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throw std::runtime_error("JSON double out of range");
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return retval;
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}
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const UniValue& UniValue::get_obj() const
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{
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if (typ != VOBJ)
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throw std::runtime_error("JSON value is not an object as expected");
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return *this;
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}
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const UniValue& UniValue::get_array() const
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{
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if (typ != VARR)
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throw std::runtime_error("JSON value is not an array as expected");
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return *this;
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}
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