110 lines
4.8 KiB
Go
110 lines
4.8 KiB
Go
package server
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import (
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"time"
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)
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// Defines default config settings
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const (
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DefaultListenHTTP = ":80"
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DefaultCacheDuration = 12 * time.Hour
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DefaultKeepaliveInterval = 55 * time.Second // Not too frequently to save battery (Android read timeout is 77s!)
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DefaultManagerInterval = time.Minute
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DefaultAtSenderInterval = 10 * time.Second
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DefaultMinDelay = 10 * time.Second
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DefaultMaxDelay = 3 * 24 * time.Hour
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DefaultMessageLimit = 4096 // Bytes
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DefaultAttachmentTotalSizeLimit = int64(1024 * 1024 * 1024) // 1 GB
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DefaultAttachmentFileSizeLimit = int64(15 * 1024 * 1024) // 15 MB
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DefaultAttachmentExpiryDuration = 3 * time.Hour
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DefaultFirebaseKeepaliveInterval = 3 * time.Hour // Not too frequently to save battery
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)
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// Defines all the limits
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// - total topic limit: max number of topics overall
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// - per visitor subscription limit: max number of subscriptions (active HTTP connections) per per-visitor/IP
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// - per visitor request limit: max number of PUT/GET/.. requests (here: 60 requests bucket, replenished at a rate of one per 10 seconds)
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// - per visitor email limit: max number of emails (here: 16 email bucket, replenished at a rate of one per hour)
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// - per visitor attachment size limit:
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const (
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DefaultTotalTopicLimit = 5000
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DefaultVisitorSubscriptionLimit = 30
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DefaultVisitorRequestLimitBurst = 60
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DefaultVisitorRequestLimitReplenish = 10 * time.Second
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DefaultVisitorEmailLimitBurst = 16
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DefaultVisitorEmailLimitReplenish = time.Hour
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DefaultVisitorAttachmentTotalSizeLimit = 50 * 1024 * 1024
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)
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// Config is the main config struct for the application. Use New to instantiate a default config struct.
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type Config struct {
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BaseURL string
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ListenHTTP string
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ListenHTTPS string
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KeyFile string
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CertFile string
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FirebaseKeyFile string
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CacheFile string
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CacheDuration time.Duration
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AttachmentCacheDir string
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AttachmentTotalSizeLimit int64
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AttachmentFileSizeLimit int64
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AttachmentExpiryDuration time.Duration
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KeepaliveInterval time.Duration
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ManagerInterval time.Duration
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AtSenderInterval time.Duration
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FirebaseKeepaliveInterval time.Duration
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SMTPSenderAddr string
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SMTPSenderUser string
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SMTPSenderPass string
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SMTPSenderFrom string
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SMTPServerListen string
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SMTPServerDomain string
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SMTPServerAddrPrefix string
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MessageLimit int
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MinDelay time.Duration
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MaxDelay time.Duration
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TotalTopicLimit int
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TotalAttachmentSizeLimit int64
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VisitorSubscriptionLimit int
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VisitorAttachmentTotalSizeLimit int64
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VisitorRequestLimitBurst int
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VisitorRequestLimitReplenish time.Duration
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VisitorEmailLimitBurst int
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VisitorEmailLimitReplenish time.Duration
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BehindProxy bool
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}
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// NewConfig instantiates a default new server config
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func NewConfig() *Config {
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return &Config{
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BaseURL: "",
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ListenHTTP: DefaultListenHTTP,
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ListenHTTPS: "",
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KeyFile: "",
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CertFile: "",
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FirebaseKeyFile: "",
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CacheFile: "",
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CacheDuration: DefaultCacheDuration,
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AttachmentCacheDir: "",
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AttachmentTotalSizeLimit: DefaultAttachmentTotalSizeLimit,
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AttachmentFileSizeLimit: DefaultAttachmentFileSizeLimit,
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AttachmentExpiryDuration: DefaultAttachmentExpiryDuration,
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KeepaliveInterval: DefaultKeepaliveInterval,
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ManagerInterval: DefaultManagerInterval,
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MessageLimit: DefaultMessageLimit,
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MinDelay: DefaultMinDelay,
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MaxDelay: DefaultMaxDelay,
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AtSenderInterval: DefaultAtSenderInterval,
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FirebaseKeepaliveInterval: DefaultFirebaseKeepaliveInterval,
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TotalTopicLimit: DefaultTotalTopicLimit,
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VisitorSubscriptionLimit: DefaultVisitorSubscriptionLimit,
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VisitorAttachmentTotalSizeLimit: DefaultVisitorAttachmentTotalSizeLimit,
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VisitorRequestLimitBurst: DefaultVisitorRequestLimitBurst,
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VisitorRequestLimitReplenish: DefaultVisitorRequestLimitReplenish,
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VisitorEmailLimitBurst: DefaultVisitorEmailLimitBurst,
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VisitorEmailLimitReplenish: DefaultVisitorEmailLimitReplenish,
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BehindProxy: false,
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}
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}
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