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web_service: stop using std::future + callback style async

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This commit is contained in:
Weiyi Wang 2018-09-12 12:22:48 -04:00
parent 0a4d338ffa
commit 77c1f647cb
23 changed files with 329 additions and 457 deletions
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124
src/web_service/web_backend.h
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@ -12,72 +12,80 @@
#include "common/announce_multiplayer_room.h"
#include "common/common_types.h"
namespace LUrlParser {
class clParseURL;
namespace httplib {
class Client;
}
namespace WebService {
/**
* Requests a new JWT if necessary
* @param force_new_token If true, force to request a new token from the server.
* @param username Citra username to use for authentication.
* @param token Citra token to use for authentication.
* @return string with the current JWT toke
*/
std::string UpdateCoreJWT(bool force_new_token, const std::string& username,
const std::string& token);
class Client {
public:
Client(const std::string& host, const std::string& username, const std::string& token);
/**
* Posts JSON to a api.citra-emu.org.
* @param url URL of the api.citra-emu.org endpoint to post data to.
* @param parsed_url Parsed URL used for the POST request.
* @param params Headers sent for the POST request.
* @param data String of JSON data to use for the body of the POST request.
* @param data If true, a JWT is requested in the function
* @return future with the returned value of the POST
*/
static Common::WebResult PostJsonAsyncFn(const std::string& url,
const LUrlParser::clParseURL& parsed_url,
const httplib::Headers& params, const std::string& data,
bool is_jwt_requested);
/**
* Posts JSON to the specified path.
* @param path the URL segment after the host address.
* @param data String of JSON data to use for the body of the POST request.
* @param allow_anonymous If true, allow anonymous unauthenticated requests.
* @return the result of the request.
*/
Common::WebResult PostJson(const std::string& path, const std::string& data,
bool allow_anonymous) {
return GenericJson("POST", path, data, allow_anonymous);
}
/**
* Posts JSON to api.citra-emu.org.
* @param url URL of the api.citra-emu.org endpoint to post data to.
* @param data String of JSON data to use for the body of the POST request.
* @param allow_anonymous If true, allow anonymous unauthenticated requests.
* @return future with the returned value of the POST
*/
std::future<Common::WebResult> PostJson(const std::string& url, const std::string& data,
bool allow_anonymous);
/**
* Gets JSON from the specified path.
* @param path the URL segment after the host address.
* @param allow_anonymous If true, allow anonymous unauthenticated requests.
* @return the result of the request.
*/
Common::WebResult GetJson(const std::string& path, bool allow_anonymous) {
return GenericJson("GET", path, "", allow_anonymous);
}
/**
* Posts JSON to api.citra-emu.org.
* @param url URL of the api.citra-emu.org endpoint to post data to.
* @param username Citra username to use for authentication.
* @param token Citra token to use for authentication.
* @return future with the error or result of the POST
*/
std::future<Common::WebResult> PostJson(const std::string& url, const std::string& username,
const std::string& token);
/**
* Deletes JSON to the specified path.
* @param path the URL segment after the host address.
* @param data String of JSON data to use for the body of the DELETE request.
* @param allow_anonymous If true, allow anonymous unauthenticated requests.
* @return the result of the request.
*/
Common::WebResult DeleteJson(const std::string& path, const std::string& data,
bool allow_anonymous) {
return GenericJson("DELETE", path, data, allow_anonymous);
}
/**
* Gets JSON from api.citra-emu.org.
* @param func A function that gets exectued when the json as a string is received
* @param url URL of the api.citra-emu.org endpoint to post data to.
* @param allow_anonymous If true, allow anonymous unauthenticated requests.
* @return future that holds the return value T of the func
*/
template <typename T>
std::future<T> GetJson(std::function<T(const std::string&)> func, const std::string& url,
bool allow_anonymous);
private:
/// A generic function handles POST, GET and DELETE request together
Common::WebResult GenericJson(const std::string& method, const std::string& path,
const std::string& data, bool allow_anonymous);
/**
* Delete JSON to api.citra-emu.org.
* @param url URL of the api.citra-emu.org endpoint to post data to.
* @param data String of JSON data to use for the body of the DELETE request.
*/
void DeleteJson(const std::string& url, const std::string& data);
/**
* A generic function with explicit authentication method specified
* JWT is used if the jwt parameter is not empty
* username + token is used if jwt is empty but username and token are not empty
* anonymous if all of jwt, username and token are empty
*/
Common::WebResult GenericJson(const std::string& method, const std::string& path,
const std::string& data, const std::string& jwt = "",
const std::string& username = "", const std::string& token = "");
// Retrieve a new JWT from given username and token
void UpdateJWT();
std::string host;
std::string username;
std::string token;
std::string jwt;
std::unique_ptr<httplib::Client> cli;
struct JWTCache {
std::string username;
std::string token;
std::string jwt;
};
static JWTCache jwt_cache;
};
} // namespace WebService