settings.go

// Kiebitz - Privacy-Friendly Appointment Scheduling
// Copyright (C) 2021-2021 The Kiebitz Authors
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version. Additional terms
// as defined in section 7 of the license (e.g. regarding attribution)
// are specified at https://kiebitz.eu/en/docs/open-source/additional-terms.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

package services

import (
	"github.com/kiebitz-oss/services/crypto"
)

type RPCSettings struct {
	BindAddress string `json:"bind_address"`
}

type StorageSettings struct {
	Keys            []*crypto.Key          `json:"keys,omitempty"`
	SettingsTTLDays int64                  `json:"settings_ttl_days"`
	HTTP            *HTTPServerSettings    `json:"http,omitempty"`
	JSONRPC         *JSONRPCServerSettings `json:"jsonrpc,omitempty"`
	REST            *RESTServerSettings    `json:"rest,omitempty"`
}

type AppointmentsSettings struct {
	DataTTLDays             int64                  `json:"data_ttl_days,omitempty"`
	HTTP                    *HTTPServerSettings    `json:"http,omitempty"`
	REST                    *RESTServerSettings    `json:"rest,omitempty"`
	JSONRPC                 *JSONRPCServerSettings `json:"jsonrpc,omitempty"`
	Keys                    []*crypto.Key          `json:"keys,omitempty"`
	Secret                  []byte                 `json:"secret,omitempty"`
	ProviderCodesEnabled    bool                   `json:"provider_codes_enabled,omitempty"`
	UserCodesEnabled        bool                   `json:"user_codes_enabled,omitempty"`
	UserCodesReuseLimit     int64                  `json:"user_codes_reuse_limit"`
	ProviderCodesReuseLimit int64                  `json:"provider_codes_reuse_limit"`
	ResponseMaxProvider     int64                  `json:"response_max_provider"`
	ResponseMaxAppointment  int64                  `json:"response_max_appointment"`
}

func (a *AppointmentsSettings) Key(name string) *crypto.Key {
	return Key(a.Keys, name)
}

func Key(keys []*crypto.Key, name string) *crypto.Key {
	for _, key := range keys {
		if key.Name == name {
			return key
		}
	}
	return nil
}

func (s *SigningSettings) Key(name string) *crypto.Key {
	return Key(s.Keys, name)
}

type SigningSettings struct {
	Keys []*crypto.Key `json:"keys"`
}

type DatabaseSettings struct {
	Type     string `json:"type"`
	Settings interface{}
}

type MeterSettings struct {
	Type     string `json:"type"`
	Settings interface{}
}

type Settings struct {
	Test         bool                  `json:"test,omitempty"`
	Admin        *AdminSettings        `json:"admin,omitempty"`
	Definitions  *Definitions          `json:"definitions,omitempty"`
	Storage      *StorageSettings      `json:"storage,omitempty"`
	Appointments *AppointmentsSettings `json:"appointments,omitempty"`
	Database     *DatabaseSettings     `json:"database,omitempty"`
	Meter        *MeterSettings        `json:"meter,omitempty"`
	Metrics      *MetricSettings       `json:"metrics,omitempty"`
	DatabaseObj  Database              `json:"-"`
	MeterObj     Meter                 `json:"-"`
	MetricsObj   MetricsServer         `json:"-"`
}

type MetricsServer interface {
	Start() error
	Stop() error
}

type AdminSettings struct {
	Signing *SigningSettings `json:"signing,omitempty"`
	Client  *ClientSettings  `json:"client,omitempty"`
}

type ClientSettings struct {
	StorageEndpoint      string `json:"storage_endpoint"`
	AppointmentsEndpoint string `json:"appointments_endpoint"`
}

type TLSSettings struct {
	CACertificateFile string `json:"ca_certificate_file"`
	CertificateFile   string `json:"certificate_file"`
	KeyFile           string `json:"key_file"`
}

type CorsSettings struct {
	AllowedHeaders []string `json:"allowed_headers"`
	AllowedHosts   []string `json:"allowed_hosts"`
	AllowedMethods []string `json:"allowed_methods"`
}

// Settings for the JSON-RPC server
type JSONRPCServerSettings struct {
	Cors *CorsSettings       `json:"cors,omitempty"`
	HTTP *HTTPServerSettings `json:"http,omitempty"`
}

// Settings for the JSON-RPC server
type RESTServerSettings struct {
	Cors *CorsSettings       `json:"cors,omitempty"`
	HTTP *HTTPServerSettings `json:"http,omitempty"`
}

type HTTPServerSettings struct {
	TLS           *TLSSettings `json:"tls,omitempty"`
	BindAddress   string       `json:"bind_address"`
	TCPRateLimits []*RateLimit `json:"tcp_rate_limits"`
}

type RateLimit struct {
	TimeWindow *TimeWindow `json:"timeWindow"`
	Type       string      `json:"type"`
	Limit      int64       `json:"limit"`
}

type MetricSettings struct {
	BindAddress string `json:"bind_address"`
}

type MailSettings struct {
	SmtpHost     string `json:"smtp_host"`
	SmtpPort     int64  `json:"smtp_port"`
	SmtpUser     string `json:"smtp_user"`
	SmtpPassword string `json:"smtp_password"`
	Sender       string `json:"sender"`
	MailSubject  string `json:"mail_subject"`
	MailTemplate string `json:"mail_template"`
	MailDelay    int64  `json:"mail_delay"`
}