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Add option to remove type fromt he jwt_header #26

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This commit is contained in:
Arun M 2018-08-05 15:10:53 +05:30
parent 87dcef903f
commit 129731da56
4 changed files with 84 additions and 14 deletions
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24
include/jwt/impl/jwt.ipp
View file

@ -85,19 +85,16 @@ inline void jwt_header::decode(const jwt::string_view enc_str, std::error_code&
if (alg_ != algorithm::NONE)
{
auto itr = payload_.find("typ");
if (itr == payload_.end()) {
ec = DecodeErrc::TypHeaderMiss;
return;
if (itr != payload_.end()) {
const auto& typ = itr.value().get<std::string>();
if (strcasecmp(typ.c_str(), "JWT")) {
ec = DecodeErrc::TypMismatch;
return;
}
typ_ = str_to_type(typ);
}
const auto& typ = itr.value().get<std::string>();
if (strcasecmp(typ.c_str(), "JWT")) {
ec = DecodeErrc::TypMismatch;
return;
}
typ_ = str_to_type(typ);
} else {
//TODO:
}
@ -107,7 +104,8 @@ inline void jwt_header::decode(const jwt::string_view enc_str, std::error_code&
auto ret = headers_.insert(it.key());
if (!ret.second) {
ec = DecodeErrc::DuplClaims;
break;
//ATTN: Dont stop the decode here
//Not a hard error.
}
}

38
include/jwt/jwt.hpp
View file

@ -51,7 +51,8 @@ namespace jwt {
*/
enum class type
{
JWT = 0,
NONE = 0,
JWT = 1,
};
/**
@ -63,6 +64,7 @@ inline enum type str_to_type(const jwt::string_view typ) noexcept
assert (typ.length() && "Empty type string");
if (!strcasecmp(typ.data(), "jwt")) return type::JWT;
else if(!strcasecmp(typ.data(), "none")) return type::NONE;
throw std::runtime_error("Unknown token type");
@ -410,6 +412,40 @@ public: // Exposed APIs
overwrite);
}
/**
* Remove the header from JWT.
* NOTE: Special handling for removing type field
* from header. The typ_ is set to NONE when removed.
*/
bool remove_header(const jwt::string_view hname)
{
if (!strcasecmp(hname.data(), "typ")) {
typ_ = type::NONE;
payload_.erase(hname.data());
return true;
}
auto itr = headers_.find(hname);
if (itr == std::end(headers_)) {
return false;
}
payload_.erase(hname.data());
headers_.erase(hname.data());
return true;
}
/**
* Checks if header with the given name
* is present or not.
*/
bool has_header(const jwt::string_view hname)
{
if (!strcasecmp(hname.data(), "typ")) return typ_ != type::NONE;
return headers_.find(hname) != std::end(headers_);
}
/**
* Get the URL safe base64 encoded string
* of the header.