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doorlockd-mirror/doorlockd/lib/util.cpp
Ralf Ramsauer 9c549d1d27 Logic: Allow tokens of arbitrary length
Make token size dynamically adjustable. Shorter tokens are absolutely
sufficient and simplify the manual copying of tokens

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2016-04-03 17:05:23 +02:00

77 lines
1.7 KiB
C++

#include "util.h"
template <>
int getJson(const Json::Value &root, const std::string &key)
{
auto val = root.get(key, Json::Value());
if (val.isInt())
return val.asInt();
throw std::runtime_error("Json Type error");
}
template <>
std::string getJson(const Json::Value &root, const std::string &key)
{
auto val = root.get(key, Json::Value());
if (val.isString())
return val.asString();
throw std::runtime_error("Json Type error");
}
template <>
size_t getJson(const Json::Value &root, const std::string &key)
{
auto val = root.get(key, Json::Value());
if (val.isInt())
return val.asUInt64();
throw std::runtime_error("Json Type error");
}
template <>
bool getJson(const Json::Value &root, const std::string &key)
{
auto val = root.get(key, Json::Value());
if (val.isBool())
return val.asBool();
throw std::runtime_error("Json Type error");
}
template <>
Json::Value getJson(const Json::Value &root, const std::string &key)
{
auto val = root.get(key, Json::Value());
return val;
}
static char nibble2hex(unsigned char input)
{
input &= 0xf;
if(input <= 9)
{
return input + '0';
}
return input - 0xA + 'A';
}
std::string randHexString(unsigned int len)
{
std::string retval;
while (len--)
retval += nibble2hex(rand() & 0xF);
return retval;
}
unsigned char hex2uchar(const char input)
{
if(input >= '0' && input <= '9') {
return input - '0';
} else if(input >= 'A' && input <= 'F') {
return input - 'A' + 10;
} else if(input >= 'a' && input <= 'f') {
return input - 'a' + 10;
}
throw std::runtime_error("Malformed hexadecimal input");
}