1 files changed, 87 insertions, 0 deletions
diff --git a/src/lib/http/basic_auth.h b/src/lib/http/basic_auth.h
new file mode 100644
index 0000000..45301af
--- /dev/null
+++ b/src/lib/http/basic_auth.h
@@ -0,0 +1,87 @@
+// Copyright (C) 2020-2022 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef BASIC_HTTP_AUTH_H
+#define BASIC_HTTP_AUTH_H
+
+#include <http/header_context.h>
+#include <exceptions/exceptions.h>
+#include <boost/shared_ptr.hpp>
+#include <unordered_set>
+
+namespace isc {
+namespace http {
+
+/// @brief Represents a basic HTTP authentication.
+///
+/// It computes the credential from user and password.
+class BasicHttpAuth {
+public:
+
+    /// @brief Constructor.
+    ///
+    /// @param user User id
+    /// @param password Password
+    /// @throw BadValue if user contains the ':' character.
+    BasicHttpAuth(const std::string& user, const std::string& password);
+
+    /// @brief Constructor.
+    ///
+    /// @param secret user:password string
+    /// @throw BadValue if secret does not contain the ':' character.
+    BasicHttpAuth(const std::string& secret);
+
+    /// @brief Returns the secret.
+    const std::string& getSecret() const {
+        return (secret_);
+    }
+
+    /// @brief Returns the credential (base64 of the UTF-8 secret).
+    const std::string& getCredential() const {
+        return (credential_);
+    }
+
+private:
+
+    /// @brief Build the secret from user and password.
+    void buildSecret();
+
+    /// @brief Build the credential from the secret.
+    void buildCredential();
+
+    /// @brief User id e.g. johndoe.
+    std::string user_;
+
+    /// @brief Password e.g. secret1.
+    std::string password_;
+
+    /// @brief Secret e.g. johndoe:secret1.
+    std::string secret_;
+
+    /// @brief Credential: base64 encoding of UTF-8 secret,
+    /// e.g. am9obmRvZTpzZWNyZXQx.
+    std::string credential_;
+};
+
+/// @brief Type of pointers to basic HTTP authentication objects.
+typedef boost::shared_ptr<BasicHttpAuth> BasicHttpAuthPtr;
+
+/// @brief Represents basic HTTP authentication header.
+struct BasicAuthHttpHeaderContext : public HttpHeaderContext {
+
+    /// @brief Constructor.
+    ///
+    /// @param basic_auth Basic HTTP authentication object.
+    explicit BasicAuthHttpHeaderContext(const BasicHttpAuth& basic_auth)
+        : HttpHeaderContext("Authorization",
+                            "Basic " + basic_auth.getCredential()) {
+    }
+};
+
+} // end of namespace isc::http
+} // end of namespace isc
+
+#endif // endif BASIC_HTTP_AUTH_H