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Changed decode function signature

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Arun M 2017-12-05 16:02:54 +05:30
parent 09bc72c9f7
commit a4a4bd5dff
6 changed files with 124 additions and 14 deletions
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65
include/jwt/impl/jwt.ipp
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@ -351,26 +351,69 @@ jwt_object::three_parts(const string_view enc_str)
//====================================================================
jwt_object jwt_decode(const string_view encoded_str, const string_view key, bool validate)
namespace { // Anonymous namespace
template <typename DecodeParams, typename... Rest>
void set_decode_params(DecodeParams& dparams, params::detail::leeway_param l, Rest&&... args)
{
//TODO: implement error_code
jwt_object jobj;
dparams.leeway = l.get();
set_decode_params(dparams, std::forward<Rest>(args)...);
return;
}
auto parts = jwt_object::three_parts(encoded_str);
template <typename DecodeParams, typename... Rest>
void set_decode_params(DecodeParams& dparams, params::detail::verify_param v, Rest&&... args)
{
dparams.verify = v.get();
set_decode_params(dparams, std::forward<Rest>(args)...);
return;
}
template <typename DecodeParams>
void set_decode_params(DecodeParams& dparams)
{
return;
}
} // END anonymous namespace
template <typename SequenceT, typename... Args>
jwt_object decode(const string_view enc_str,
const string_view key,
const params::detail::algorithms_param<SequenceT>& algos,
Args&&... args)
{
if (algos.get().size() == 0) {
throw DecodeError("Algorithms list cannot be empty");
}
struct decode_params
{
/// Verify parameter. Defaulted to true.
bool verify = true;
/// Leeway parameter. Defaulted to zero seconds.
uint32_t leeway = 0;
};
decode_params dparams{};
set_decode_params(dparams, std::forward<Args>(args)...);
jwt_object obj;
auto parts = jwt_object::three_parts(enc_str);
//throws decode error
jobj.header(jwt_header{parts[0]});
obj.header(jwt_header{parts[0]});
//throws decode error
jobj.payload(jwt_payload{parts[1]});
obj.payload(jwt_payload{parts[1]});
jwt_signature jsign{key};
//length of the encoded header and payload only.
//Addition of '1' to account for the '.' character.
// Length of the encoded header and payload only.
// Addition of '1' to account for the '.' character.
auto l = parts[0].length() + 1 + parts[1].length();
auto res = jsign.verify(jobj.header(), encoded_str.substr(0, l), parts[2]);
auto res = jsign.verify(obj.header(), enc_str.substr(0, l), parts[2]);
return jobj;
return obj;
}
} // END namespace jwt