fcb8d040e8
Instead of lengthy blurbs, switch to single-line, machine-readable standardized (https://spdx.dev) license identifiers. The Linux kernel switched long ago, so there is strong precedent. Three cases are handled: AGPL-only, Apache-only, and dual licensed. For the latter case, I chose (AGPL-3.0-or-later and Apache-2.0), reasoning that our changes are extensive enough to apply our license. The changes we applied mechanically with a script, except to licenses/README.md. Closes #9937
75 lines
1.9 KiB
C++
75 lines
1.9 KiB
C++
/*
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*/
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/*
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* Copyright (C) 2019-present ScyllaDB
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*
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* Modified by ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: (AGPL-3.0-or-later and Apache-2.0)
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*/
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#include "auth/sasl_challenge.hh"
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#include "exceptions/exceptions.hh"
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namespace auth {
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/**
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* SASL PLAIN mechanism specifies that credentials are encoded in a
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* sequence of UTF-8 bytes, delimited by 0 (US-ASCII NUL).
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* The form is : {code}authzId<NUL>authnId<NUL>password<NUL>{code}
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* authzId is optional, and in fact we don't care about it here as we'll
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* set the authzId to match the authnId (that is, there is no concept of
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* a user being authorized to act on behalf of another).
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*
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* @param bytes encoded credentials string sent by the client
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* @return map containing the username/password pairs in the form an IAuthenticator
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* would expect
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* @throws javax.security.sasl.SaslException
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*/
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bytes plain_sasl_challenge::evaluate_response(bytes_view client_response) {
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sstring username, password;
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auto b = client_response.crbegin();
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auto e = client_response.crend();
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auto i = b;
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while (i != e) {
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if (*i == 0) {
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sstring tmp(i.base(), b.base());
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if (password.empty()) {
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password = std::move(tmp);
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} else if (username.empty()) {
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username = std::move(tmp);
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}
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b = ++i;
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continue;
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}
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++i;
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}
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if (username.empty()) {
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throw exceptions::authentication_exception("Authentication ID must not be null");
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}
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if (password.empty()) {
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throw exceptions::authentication_exception("Password must not be null");
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}
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_username = std::move(username);
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_password = std::move(password);
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return {};
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}
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bool plain_sasl_challenge::is_complete() const {
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return _username && _password;
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}
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future<authenticated_user> plain_sasl_challenge::get_authenticated_user() const {
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return _when_complete(*_username, *_password);
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}
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}
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