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web-service: Port citra's updated web_backend code.

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This commit is contained in:
bunnei 2019-11-09 03:09:39 -05:00
parent 883eb1a1a1
commit 8dc9f35baf
2 changed files with 57 additions and 18 deletions
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52
src/web_service/web_backend.cpp
View file

@ -2,10 +2,12 @@
// Licensed under GPLv2 or any later version // Licensed under GPLv2 or any later version
// Refer to the license.txt file included. // Refer to the license.txt file included.
#include <array>
#include <cstdlib> #include <cstdlib>
#include <mutex> #include <mutex>
#include <string> #include <string>
#include <LUrlParser.h> #include <LUrlParser.h>
#include <fmt/format.h>
#include <httplib.h> #include <httplib.h>
#include "common/common_types.h" #include "common/common_types.h"
#include "common/logging/log.h" #include "common/logging/log.h"
@ -16,10 +18,10 @@ namespace WebService {
constexpr std::array<const char, 1> API_VERSION{'1'}; constexpr std::array<const char, 1> API_VERSION{'1'};
constexpr u32 HTTP_PORT = 80; constexpr int HTTP_PORT = 80;
constexpr u32 HTTPS_PORT = 443; constexpr int HTTPS_PORT = 443;
constexpr u32 TIMEOUT_SECONDS = 30; constexpr std::size_t TIMEOUT_SECONDS = 30;
struct Client::Impl { struct Client::Impl {
Impl(std::string host, std::string username, std::string token) Impl(std::string host, std::string username, std::string token)
@ -31,8 +33,9 @@ struct Client::Impl {
} }
/// A generic function handles POST, GET and DELETE request together /// A generic function handles POST, GET and DELETE request together
Common::WebResult GenericJson(const std::string& method, const std::string& path, Common::WebResult GenericRequest(const std::string& method, const std::string& path,
const std::string& data, bool allow_anonymous) { const std::string& data, bool allow_anonymous,
const std::string& accept) {
if (jwt.empty()) { if (jwt.empty()) {
UpdateJWT(); UpdateJWT();
} }
@ -43,11 +46,11 @@ struct Client::Impl {
"Credentials needed"}; "Credentials needed"};
} }
auto result = GenericJson(method, path, data, jwt); auto result = GenericRequest(method, path, data, accept, jwt);
if (result.result_string == "401") { if (result.result_string == "401") {
// Try again with new JWT // Try again with new JWT
UpdateJWT(); UpdateJWT();
result = GenericJson(method, path, data, jwt); result = GenericRequest(method, path, data, accept, jwt);
} }
return result; return result;
@ -56,12 +59,13 @@ struct Client::Impl {
/** /**
* A generic function with explicit authentication method specified * A generic function with explicit authentication method specified
* JWT is used if the jwt parameter is not empty * 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 * username + token is used if jwt is empty but username and token are
* anonymous if all of jwt, username and token are empty * not empty anonymous if all of jwt, username and token are empty
*/ */
Common::WebResult GenericJson(const std::string& method, const std::string& path, Common::WebResult GenericRequest(const std::string& method, const std::string& path,
const std::string& data, const std::string& jwt = "", const std::string& data, const std::string& accept,
const std::string& username = "", const std::string& token = "") { const std::string& jwt = "", const std::string& username = "",
const std::string& token = "") {
if (cli == nullptr) { if (cli == nullptr) {
auto parsedUrl = LUrlParser::clParseURL::ParseURL(host); auto parsedUrl = LUrlParser::clParseURL::ParseURL(host);
int port; int port;
@ -132,8 +136,7 @@ struct Client::Impl {
return Common::WebResult{Common::WebResult::Code::WrongContent, ""}; return Common::WebResult{Common::WebResult::Code::WrongContent, ""};
} }
if (content_type->second.find("application/json") == std::string::npos && if (content_type->second.find(accept) == 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, LOG_ERROR(WebService, "{} to {} returned wrong content: {}", method, host + path,
content_type->second); content_type->second);
return Common::WebResult{Common::WebResult::Code::WrongContent, "Wrong content"}; return Common::WebResult{Common::WebResult::Code::WrongContent, "Wrong content"};
@ -147,7 +150,7 @@ struct Client::Impl {
return; return;
} }
auto result = GenericJson("POST", "/jwt/internal", "", "", username, token); auto result = GenericRequest("POST", "/jwt/internal", "", "text/html", "", username, token);
if (result.result_code != Common::WebResult::Code::Success) { if (result.result_code != Common::WebResult::Code::Success) {
LOG_ERROR(WebService, "UpdateJWT failed"); LOG_ERROR(WebService, "UpdateJWT failed");
} else { } else {
@ -180,16 +183,29 @@ Client::~Client() = default;
Common::WebResult Client::PostJson(const std::string& path, const std::string& data, Common::WebResult Client::PostJson(const std::string& path, const std::string& data,
bool allow_anonymous) { bool allow_anonymous) {
return impl->GenericJson("POST", path, data, allow_anonymous); return impl->GenericRequest("POST", path, data, allow_anonymous, "application/json");
} }
Common::WebResult Client::GetJson(const std::string& path, bool allow_anonymous) { Common::WebResult Client::GetJson(const std::string& path, bool allow_anonymous) {
return impl->GenericJson("GET", path, "", allow_anonymous); return impl->GenericRequest("GET", path, "", allow_anonymous, "application/json");
} }
Common::WebResult Client::DeleteJson(const std::string& path, const std::string& data, Common::WebResult Client::DeleteJson(const std::string& path, const std::string& data,
bool allow_anonymous) { bool allow_anonymous) {
return impl->GenericJson("DELETE", path, data, allow_anonymous); return impl->GenericRequest("DELETE", path, data, allow_anonymous, "application/json");
}
Common::WebResult Client::GetPlain(const std::string& path, bool allow_anonymous) {
return impl->GenericRequest("GET", path, "", allow_anonymous, "text/plain");
}
Common::WebResult Client::GetImage(const std::string& path, bool allow_anonymous) {
return impl->GenericRequest("GET", path, "", allow_anonymous, "image/png");
}
Common::WebResult Client::GetExternalJWT(const std::string& audience) {
return impl->GenericRequest("POST", fmt::format("/jwt/external/{}", audience), "", false,
"text/html");
} }
} // namespace WebService } // namespace WebService

23
src/web_service/web_backend.h
View file

@ -46,6 +46,29 @@ public:
Common::WebResult DeleteJson(const std::string& path, const std::string& data, Common::WebResult DeleteJson(const std::string& path, const std::string& data,
bool allow_anonymous); bool allow_anonymous);
/**
* Gets a plain string 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 GetPlain(const std::string& path, bool allow_anonymous);
/**
* Gets an PNG image 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 GetImage(const std::string& path, bool allow_anonymous);
/**
* Requests an external JWT for the specific audience provided.
* @param audience the audience of the JWT requested.
* @return the result of the request.
*/
Common::WebResult GetExternalJWT(const std::string& audience);
private: private:
struct Impl; struct Impl;
std::unique_ptr<Impl> impl; std::unique_ptr<Impl> impl;