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// Copyright 2017 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <cstdlib>
#include <string>
#include <thread>
#include <LUrlParser.h>
#include "common/logging/log.h"
#include "common/web_result.h"
#include "core/settings.h"
#include "web_service/web_backend.h"
namespace WebService {
constexpr std::array<const char, 1> API_VERSION{'1'};
constexpr u32 HTTP_PORT = 80;
constexpr u32 HTTPS_PORT = 443;
constexpr u32 TIMEOUT_SECONDS = 30;
Client::JWTCache Client::jwt_cache{};
Client::Client(const std::string& host, const std::string& username, const std::string& token)
: host(host), username(username), token(token) {
std::lock_guard<std::mutex> lock(jwt_cache.mutex);
if (username == jwt_cache.username && token == jwt_cache.token) {
jwt = jwt_cache.jwt;
}
}
Common::WebResult Client::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) {
if (cli == nullptr) {
auto parsedUrl = LUrlParser::clParseURL::ParseURL(host);
int port;
if (parsedUrl.m_Scheme == "http") {
if (!parsedUrl.GetPort(&port)) {
port = HTTP_PORT;
}
cli =
std::make_unique<httplib::Client>(parsedUrl.m_Host.c_str(), port, TIMEOUT_SECONDS);
} else if (parsedUrl.m_Scheme == "https") {
if (!parsedUrl.GetPort(&port)) {
port = HTTPS_PORT;
}
cli = std::make_unique<httplib::SSLClient>(parsedUrl.m_Host.c_str(), port,
TIMEOUT_SECONDS);
} else {
LOG_ERROR(WebService, "Bad URL scheme {}", parsedUrl.m_Scheme);
return Common::WebResult{Common::WebResult::Code::InvalidURL, "Bad URL scheme"};
}
}
if (cli == nullptr) {
LOG_ERROR(WebService, "Invalid URL {}", host + path);
return Common::WebResult{Common::WebResult::Code::InvalidURL, "Invalid URL"};
}
httplib::Headers params;
if (!jwt.empty()) {
params = {
{std::string("Authorization"), fmt::format("Bearer {}", jwt)},
};
} else if (!username.empty()) {
params = {
{std::string("x-username"), username},
{std::string("x-token"), token},
};
}
params.emplace(std::string("api-version"), std::string(API_VERSION.begin(), API_VERSION.end()));
if (method != "GET") {
params.emplace(std::string("Content-Type"), std::string("application/json"));
};
httplib::Request request;
request.method = method;
request.path = path;
request.headers = params;
request.body = data;
httplib::Response response;
if (!cli->send(request, response)) {
LOG_ERROR(WebService, "{} to {} returned null", method, host + path);
return Common::WebResult{Common::WebResult::Code::LibError, "Null response"};
}
if (response.status >= 400) {
LOG_ERROR(WebService, "{} to {} returned error status code: {}", method, host + path,
response.status);
return Common::WebResult{Common::WebResult::Code::HttpError,
std::to_string(response.status)};
}
auto content_type = response.headers.find("content-type");
if (content_type == response.headers.end()) {
LOG_ERROR(WebService, "{} to {} returned no content", method, host + path);
return Common::WebResult{Common::WebResult::Code::WrongContent, ""};
}
if (content_type->second.find("application/json") == std::string::npos &&
content_type->second.find("text/html; charset=utf-8") == std::string::npos) {
LOG_ERROR(WebService, "{} to {} returned wrong content: {}", method, host + path,
content_type->second);
return Common::WebResult{Common::WebResult::Code::WrongContent, "Wrong content"};
}
return Common::WebResult{Common::WebResult::Code::Success, "", response.body};
}
void Client::UpdateJWT() {
if (!username.empty() && !token.empty()) {
auto result = GenericJson("POST", "/jwt/internal", "", "", username, token);
if (result.result_code != Common::WebResult::Code::Success) {
LOG_ERROR(WebService, "UpdateJWT failed");
} else {
std::lock_guard<std::mutex> lock(jwt_cache.mutex);
jwt_cache.username = username;
jwt_cache.token = token;
jwt_cache.jwt = jwt = result.returned_data;
}
}
}
Common::WebResult Client::GenericJson(const std::string& method, const std::string& path,
const std::string& data, bool allow_anonymous) {
if (jwt.empty()) {
UpdateJWT();
}
if (jwt.empty() && !allow_anonymous) {
LOG_ERROR(WebService, "Credentials must be provided for authenticated requests");
return Common::WebResult{Common::WebResult::Code::CredentialsMissing, "Credentials needed"};
}
auto result = GenericJson(method, path, data, jwt);
if (result.result_string == "401") {
// Try again with new JWT
UpdateJWT();
result = GenericJson(method, path, data, jwt);
}
return result;
}
} // namespace WebService
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