OAuthPKCEFlow.h

#ifndef TENDUKE_OAUTH_PKCE_OAUTHPKCEFLOW_H
#define TENDUKE_OAUTH_PKCE_OAUTHPKCEFLOW_H
 
#include "../BaseOAuthClient.h"
#include "../OAuthBrowserFlow.h"
#include "../OAuthConfiguration.h"
 
#include "crypto/MessageDigestFactory.h"
#include "http/HTTPClient.h"
#include "json/JSONParser.h"
#include "net/URLParser.h"
#include "time/Clock.h"
#include "utl/Base64Encoder.h"
#include "utl/random/RandomURLSafeString.h"
 
#include <cstddef>
#include <map>
#include <memory>
#include <string>
 
namespace tenduke { namespace oauth { namespace pkce {
 

const std::size_t DEFAULT_STATE_LENGTH = 16;
const std::size_t DEFAULT_CODEVERIFIER_LENGTH = 64;
 

class OAuthPKCEFlow : public tenduke::oauth::BaseOAuthClient
                    , public virtual tenduke::oauth::OAuthBrowserFlow
{
public:
    OAuthPKCEFlow(
            std::shared_ptr<const tenduke::oauth::OAuthConfiguration> config,
            std::shared_ptr<const tenduke::http::HTTPClient> httpClient,
            std::shared_ptr<const tenduke::net::URLParser> urlParser,
            std::shared_ptr<const tenduke::json::JSONParser> jsonParser,
            std::shared_ptr<const tenduke::utl::Base64Encoder> base64Encoder,
            std::shared_ptr<const tenduke::crypto::MessageDigestFactory> messageDigestFactory,
            std::shared_ptr<tenduke::time::Clock> clock,
            std::shared_ptr<tenduke::utl::random::RandomUrlSafeString> randomUrlSafeString
    );
 
    // tenduke::oauth::OAuthBrowserFlow interface
public:
    std::unique_ptr<const tenduke::oauth::OAuthBrowserAuthorizationRequest> authorize(const std::string &scopes) const override;
    std::unique_ptr<const tenduke::oauth::OAuthBrowserAuthorizationRequest> authorize(
            const std::string &scopes,
            const std::map<std::string, std::string> &additionalParameters
    ) const override;
 
protected:
    std::string generateState() const;

    std::string generateCodeVerifier() const;
 
private:
    std::size_t stateLength;
    std::size_t pkceCodeVerifierLength;
 
    const std::shared_ptr<const OAuthConfiguration> config;
    const std::shared_ptr<const tenduke::http::HTTPClient> httpClient;
    const std::shared_ptr<const tenduke::net::URLParser> urlParser;
    const std::shared_ptr<const tenduke::json::JSONParser> jsonParser;
    const std::shared_ptr<const tenduke::utl::Base64Encoder> base64Encoder;
    const std::shared_ptr<const tenduke::crypto::MessageDigestFactory> messageDigestFactory;
    const std::shared_ptr<tenduke::time::Clock> clock;
    const std::shared_ptr<tenduke::utl::random::RandomUrlSafeString> randomUrlSafeString;
};
 
 
}}}
 
#endif // TENDUKE_OAUTH_PKCE_OAUTHPKCEFLOW_H