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View Code? Open in Web Editor NEWA simple example of licode client,based on rapidjson,cppcodec,socket.io-client-cpp
A simple example of licode client,based on rapidjson,cppcodec,socket.io-client-cpp
I've finished building the project, but not test .
Hi, cppcodec maintainer here. I was just looking at who's using cppcodec and how, and saw that you have a snippet that looks like this:
const static char* regex = "^([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{4}|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{2}==)$";
std::regex base64regex(regex);
if (!std::regex_match(token, base64regex, std::regex_constants::match_flag_type::match_default))
{
fail(failtype::BAD_PARAMETER);
return;
}
std::string decodetoken = base64::decode<std::string>(token);
I thought it may be worth noting that cppcodec already verifies its input as it decodes it, so by doing a separate regex match you're basically doing twice the work that's necessary.
You can instead just catch the cppcodec::parse_error
, like so:
std::string decodetoken;
try {
base64::decode(decodetoken, token);
} catch (const cppcodec::parse_error&) {
fail(failtype::BAD_PARAMETER);
return;
}
cppcodec checks include all the ones that your regex also checks for - making sure that all characters are in the base64 alphabet, that blocks are always 4 characters long, and that the right amount of padding characters is used.
In the future I hope to include a separate verification function, but if you're already using decode() then using the error handling of decode() itself should work for your use case.
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