vikunja-api/pkg/config/config.go

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// Vikunja is a todo-list application to facilitate your life.
// Copyright 2018 Vikunja and contributors. All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package config
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import (
"crypto/rand"
"fmt"
"log"
"os"
"path/filepath"
"strings"
"time"
"github.com/spf13/viper"
)
// Key is used as a config key
type Key string
// These constants hold all config value keys
const (
ServiceJWTSecret Key = `service.JWTSecret`
ServiceInterface Key = `service.interface`
ServiceFrontendurl Key = `service.frontendurl`
ServiceEnableCaldav Key = `service.enablecaldav`
ServiceRootpath Key = `service.rootpath`
ServicePageCount Key = `service.pagecount`
ServiceEnableMetrics Key = `service.enablemetrics`
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ServiceMotd Key = `service.motd`
DatabaseType Key = `database.type`
DatabaseHost Key = `database.host`
DatabaseUser Key = `database.user`
DatabasePassword Key = `database.password`
DatabaseDatabase Key = `database.database`
DatabasePath Key = `database.path`
DatabaseMaxOpenConnections Key = `database.maxopenconnections`
DatabaseMaxIdleConnections Key = `database.maxidleconnections`
DatabaseMaxConnectionLifetime Key = `database.maxconnectionlifetime`
CacheEnabled Key = `cache.enabled`
CacheType Key = `cache.type`
CacheMaxElementSize Key = `cache.maxelementsize`
MailerEnabled Key = `mailer.enabled`
MailerHost Key = `mailer.host`
MailerPort Key = `mailer.port`
MailerUsername Key = `mailer.username`
MailerPassword Key = `mailer.password`
MailerSkipTLSVerify Key = `mailer.skiptlsverify`
MailerFromEmail Key = `mailer.fromemail`
MailerQueuelength Key = `mailer.queuelength`
MailerQueueTimeout Key = `mailer.queuetimeout`
RedisEnabled Key = `redis.enabled`
RedisHost Key = `redis.host`
RedisPassword Key = `redis.password`
RedisDB Key = `redis.db`
LogEnabled Key = `log.enabled`
LogErrors Key = `log.errors`
LogStandard Key = `log.standard`
LogDatabase Key = `log.database`
LogHTTP Key = `log.echo`
LogEcho Key = `log.echo`
LogPath Key = `log.path`
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)
// GetString returns a string config value
func (k Key) GetString() string {
return viper.GetString(string(k))
}
// GetBool returns a bool config value
func (k Key) GetBool() bool {
return viper.GetBool(string(k))
}
// GetInt returns an int config value
func (k Key) GetInt() int {
return viper.GetInt(string(k))
}
// GetDuration returns a duration config value
func (k Key) GetDuration() time.Duration {
return viper.GetDuration(string(k))
}
// Set sets a value
func (k Key) Set(i interface{}) {
viper.Set(string(k), i)
}
// sets the default config value
func (k Key) setDefault(i interface{}) {
viper.SetDefault(string(k), i)
}
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// InitConfig initializes the config, sets defaults etc.
func InitConfig() {
// Set defaults
// Service config
random, err := random(32)
if err != nil {
log.Fatal(err.Error())
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}
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// Service
ServiceJWTSecret.setDefault(random)
ServiceInterface.setDefault(":3456")
ServiceFrontendurl.setDefault("")
ServiceEnableCaldav.setDefault(true)
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ex, err := os.Executable()
if err != nil {
panic(err)
}
exPath := filepath.Dir(ex)
ServiceRootpath.setDefault(exPath)
ServicePageCount.setDefault(50)
ServiceEnableMetrics.setDefault(false)
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ServiceMotd.setDefault("")
// Database
DatabaseType.setDefault("sqlite")
DatabaseHost.setDefault("localhost")
DatabaseUser.setDefault("vikunja")
DatabasePassword.setDefault("")
DatabaseDatabase.setDefault("vikunja")
DatabasePath.setDefault("./vikunja.db")
DatabaseMaxOpenConnections.setDefault(100)
DatabaseMaxIdleConnections.setDefault(50)
DatabaseMaxConnectionLifetime.setDefault(10000)
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// Cacher
CacheEnabled.setDefault(false)
CacheType.setDefault("memory")
CacheMaxElementSize.setDefault(1000)
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// Mailer
MailerEnabled.setDefault(false)
MailerHost.setDefault("")
MailerPort.setDefault("587")
MailerUsername.setDefault("user")
MailerPassword.setDefault("")
MailerSkipTLSVerify.setDefault(false)
MailerFromEmail.setDefault("mail@vikunja")
MailerQueuelength.setDefault(100)
MailerQueueTimeout.setDefault(30)
// Redis
RedisEnabled.setDefault(false)
RedisHost.setDefault("localhost:6379")
RedisPassword.setDefault("")
RedisDB.setDefault(0)
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// Logger
LogEnabled.setDefault(true)
LogErrors.setDefault("stdout")
LogStandard.setDefault("stdout")
LogDatabase.setDefault(false)
LogHTTP.setDefault("stdout")
LogEcho.setDefault("off")
LogPath.setDefault(ServiceRootpath.GetString() + "/logs")
// Init checking for environment variables
viper.SetEnvPrefix("vikunja")
viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
viper.AutomaticEnv()
// Load the config file
viper.AddConfigPath(ServiceRootpath.GetString())
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viper.AddConfigPath("/etc/vikunja/")
viper.AddConfigPath("~/.config/vikunja")
viper.AddConfigPath(".")
viper.SetConfigName("config")
err = viper.ReadInConfig()
if err != nil {
log.Println(err.Error())
log.Println("Using defaults.")
}
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}
func random(length int) (string, error) {
b := make([]byte, length)
if _, err := rand.Read(b); err != nil {
return "", err
}
return fmt.Sprintf("%X", b), nil
}