mirror of
https://github.com/miniflux/v2.git
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Refactor config package
- Parse configuration only once during startup time - Store configuration values in a global variable
This commit is contained in:
Frédéric Guillot
fguillot
parent
04d85b3c63
commit
228862fefa
28 changed files with 922 additions and 624 deletions
272
config/config.go
272
config/config.go
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@ -4,271 +4,11 @@
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package config // import "miniflux.app/config"
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import (
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"net/url"
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"os"
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"strconv"
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"strings"
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// Opts contains configuration options after parsing.
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var Opts *Options
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"miniflux.app/logger"
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)
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const (
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defaultBaseURL = "http://localhost"
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defaultDatabaseURL = "user=postgres password=postgres dbname=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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defaultDatabaseMinConns = 1
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defaultArchiveReadDays = 60
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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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defaultCleanupFrequency = 24
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defaultProxyImages = "http-only"
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defaultOAuth2ClientID = ""
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defaultOAuth2ClientSecret = ""
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defaultOAuth2RedirectURL = ""
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defaultOAuth2Provider = ""
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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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baseURL string
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rootURL string
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basePath string
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}
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func (c *Config) parseBaseURL() {
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baseURL := os.Getenv("BASE_URL")
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if baseURL == "" {
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return
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}
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if baseURL[len(baseURL)-1:] == "/" {
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baseURL = baseURL[:len(baseURL)-1]
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}
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u, err := url.Parse(baseURL)
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if err != nil {
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logger.Error("Invalid BASE_URL: %v", err)
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return
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}
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scheme := strings.ToLower(u.Scheme)
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if scheme != "https" && scheme != "http" {
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logger.Error("Invalid BASE_URL: scheme must be http or https")
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return
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}
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c.baseURL = baseURL
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c.basePath = u.Path
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u.Path = ""
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c.rootURL = u.String()
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}
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// HasDebugMode returns true if debug mode is enabled.
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func (c *Config) HasDebugMode() bool {
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return getBooleanValue("DEBUG")
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}
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// BaseURL returns the application base URL with path.
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func (c *Config) BaseURL() string {
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return c.baseURL
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}
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// RootURL returns the base URL without path.
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func (c *Config) RootURL() string {
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return c.rootURL
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}
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// BasePath returns the application base path according to the base URL.
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func (c *Config) BasePath() string {
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return c.basePath
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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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value, exists := os.LookupEnv("DATABASE_URL")
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if !exists {
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logger.Info("The environment variable DATABASE_URL is not configured (the default value is used instead)")
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}
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if value == "" {
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value = defaultDatabaseURL
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}
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return value
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}
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// DatabaseMaxConns returns the maximum number of database connections.
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func (c *Config) DatabaseMaxConns() int {
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return getIntValue("DATABASE_MAX_CONNS", defaultDatabaseMaxConns)
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}
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// DatabaseMinConns returns the minimum number of database connections.
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func (c *Config) DatabaseMinConns() int {
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return getIntValue("DATABASE_MIN_CONNS", defaultDatabaseMinConns)
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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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if port := os.Getenv("PORT"); port != "" {
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return ":" + port
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}
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return getStringValue("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 getStringValue("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 getStringValue("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 getStringValue("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 getStringValue("CERT_CACHE", defaultCertCache)
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}
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// CleanupFrequency returns the interval for cleanup jobs.
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func (c *Config) CleanupFrequency() int {
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return getIntValue("CLEANUP_FREQUENCY", defaultCleanupFrequency)
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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 getIntValue("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 getIntValue("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 getIntValue("BATCH_SIZE", defaultBatchSize)
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}
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// IsOAuth2UserCreationAllowed returns true if user creation is allowed for OAuth2 users.
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func (c *Config) IsOAuth2UserCreationAllowed() bool {
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return getBooleanValue("OAUTH2_USER_CREATION")
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}
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// OAuth2ClientID returns the OAuth2 Client ID.
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func (c *Config) OAuth2ClientID() string {
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return getStringValue("OAUTH2_CLIENT_ID", defaultOAuth2ClientID)
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}
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// OAuth2ClientSecret returns the OAuth2 client secret.
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func (c *Config) OAuth2ClientSecret() string {
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return getStringValue("OAUTH2_CLIENT_SECRET", defaultOAuth2ClientSecret)
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}
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// OAuth2RedirectURL returns the OAuth2 redirect URL.
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func (c *Config) OAuth2RedirectURL() string {
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return getStringValue("OAUTH2_REDIRECT_URL", defaultOAuth2RedirectURL)
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}
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// OAuth2Provider returns the name of the OAuth2 provider configured.
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func (c *Config) OAuth2Provider() string {
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return getStringValue("OAUTH2_PROVIDER", defaultOAuth2Provider)
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}
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// HasHSTS returns true if HTTP Strict Transport Security is enabled.
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func (c *Config) HasHSTS() bool {
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return !getBooleanValue("DISABLE_HSTS")
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}
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// RunMigrations returns true if the environment variable RUN_MIGRATIONS is not empty.
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func (c *Config) RunMigrations() bool {
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return getBooleanValue("RUN_MIGRATIONS")
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}
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// CreateAdmin returns true if the environment variable CREATE_ADMIN is not empty.
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func (c *Config) CreateAdmin() bool {
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return getBooleanValue("CREATE_ADMIN")
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}
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// PocketConsumerKey returns the Pocket Consumer Key if defined as environment variable.
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func (c *Config) PocketConsumerKey(defaultValue string) string {
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return getStringValue("POCKET_CONSUMER_KEY", defaultValue)
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}
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// ProxyImages returns "none" to never proxy, "http-only" to proxy non-HTTPS, "all" to always proxy.
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func (c *Config) ProxyImages() string {
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return getStringValue("PROXY_IMAGES", defaultProxyImages)
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}
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// HasHTTPService returns true if the HTTP service is enabled.
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func (c *Config) HasHTTPService() bool {
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return !getBooleanValue("DISABLE_HTTP_SERVICE")
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}
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// HasSchedulerService returns true if the scheduler service is enabled.
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func (c *Config) HasSchedulerService() bool {
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return !getBooleanValue("DISABLE_SCHEDULER_SERVICE")
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}
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// ArchiveReadDays returns the number of days after which marking read items as removed.
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func (c *Config) ArchiveReadDays() int {
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return getIntValue("ARCHIVE_READ_DAYS", defaultArchiveReadDays)
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}
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// NewConfig returns a new Config.
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func NewConfig() *Config {
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cfg := &Config{
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baseURL: defaultBaseURL,
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rootURL: defaultBaseURL,
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IsHTTPS: getBooleanValue("HTTPS"),
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}
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cfg.parseBaseURL()
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return cfg
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}
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func getBooleanValue(key string) bool {
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value := strings.ToLower(os.Getenv(key))
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if value == "1" || value == "yes" || value == "true" || value == "on" {
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return true
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}
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return false
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}
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func getStringValue(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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func getIntValue(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, err := strconv.Atoi(value)
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if err != nil {
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return fallback
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}
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return v
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// ParseConfig parses configuration options.
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func ParseConfig() (err error) {
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Opts, err = parse()
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return err
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}
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