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