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// Copyright 2017 Frédéric Guillot. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package config
import (
"os"
"strconv"
)
// Default config parameters values
const (
DefaultBaseURL = "http://localhost"
DefaultDatabaseURL = "postgres://postgres:postgres@localhost/miniflux2?sslmode=disable"
DefaultWorkerPoolSize = 5
DefaultPollingFrequency = 60
DefaultBatchSize = 10
DefaultDatabaseMaxConns = 20
DefaultListenAddr = "127.0.0.1:8080"
DefaultCertFile = ""
DefaultKeyFile = ""
DefaultCertDomain = ""
DefaultCertCache = "/tmp/cert_cache"
DefaultSessionCleanupFrequency = 24
)
// Config manages configuration parameters.
type Config struct {
IsHTTPS bool
}
// Get returns a config parameter value.
func (c *Config) Get(key, fallback string) string {
value := os.Getenv(key)
if value == "" {
return fallback
}
return value
}
// GetInt returns a config parameter as integer.
func (c *Config) GetInt(key string, fallback int) int {
value := os.Getenv(key)
if value == "" {
return fallback
}
v, _ := strconv.Atoi(value)
return v
}
// BaseURL returns the application base URL.
func (c *Config) BaseURL() string {
return c.Get("BASE_URL", DefaultBaseURL)
}
// DatabaseURL returns the database URL.
func (c *Config) DatabaseURL() string {
return c.Get("DATABASE_URL", DefaultDatabaseURL)
}
// DatabaseMaxConnections returns the number of maximum database connections.
func (c *Config) DatabaseMaxConnections() int {
return c.GetInt("DATABASE_MAX_CONNS", DefaultDatabaseMaxConns)
}
// ListenAddr returns the listen address for the HTTP server.
func (c *Config) ListenAddr() string {
return c.Get("LISTEN_ADDR", DefaultListenAddr)
}
// CertFile returns the SSL certificate filename if any.
func (c *Config) CertFile() string {
return c.Get("CERT_FILE", DefaultCertFile)
}
// KeyFile returns the private key filename for custom SSL certificate.
func (c *Config) KeyFile() string {
return c.Get("KEY_FILE", DefaultKeyFile)
}
// CertDomain returns the domain to use for Let's Encrypt certificate.
func (c *Config) CertDomain() string {
return c.Get("CERT_DOMAIN", DefaultCertDomain)
}
// CertCache returns the directory to use for Let's Encrypt session cache.
func (c *Config) CertCache() string {
return c.Get("CERT_CACHE", DefaultCertCache)
}
// SessionCleanupFrequency returns the interval for session cleanup.
func (c *Config) SessionCleanupFrequency() int {
return c.GetInt("SESSION_CLEANUP_FREQUENCY", DefaultSessionCleanupFrequency)
}
// WorkerPoolSize returns the number of background worker.
func (c *Config) WorkerPoolSize() int {
return c.GetInt("WORKER_POOL_SIZE", DefaultWorkerPoolSize)
}
// PollingFrequency returns the interval to refresh feeds in the background.
func (c *Config) PollingFrequency() int {
return c.GetInt("POLLING_FREQUENCY", DefaultPollingFrequency)
}
// BatchSize returns the number of feeds to send for background processing.
func (c *Config) BatchSize() int {
return c.GetInt("BATCH_SIZE", DefaultBatchSize)
}
// NewConfig returns a new Config.
func NewConfig() *Config {
return &Config{IsHTTPS: os.Getenv("HTTPS") != ""}
}
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