74 lines
1.7 KiB
Go
74 lines
1.7 KiB
Go
package subscription
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import (
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"github.com/thesyncim/faye/message"
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"regexp"
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)
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type Unsubscriber func(subscription *Subscription) error
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type Publisher func(msg message.Data) (string, error)
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type Subscription struct {
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id string //request Subscription ID
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channel string
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ok chan error //used by
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unsub Unsubscriber
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pub Publisher
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msgCh chan *message.Message
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}
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func NewSubscription(id string, chanel string, unsub Unsubscriber, pub Publisher, msgCh chan *message.Message, ok chan error) *Subscription {
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return &Subscription{
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pub: pub,
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ok: ok,
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id: id,
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channel: chanel,
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unsub: unsub,
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msgCh: msgCh,
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}
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}
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func (s *Subscription) OnMessage(onMessage func(msg message.Data)) error {
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var inMsg *message.Message
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for inMsg = range s.msgCh {
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if inMsg.GetError() != nil {
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return inMsg.GetError()
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}
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onMessage(inMsg.Data)
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}
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return nil
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}
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func (s *Subscription) ID() string {
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return s.id
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}
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func (s *Subscription) MsgChannel() chan *message.Message {
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return s.msgCh
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}
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func (s *Subscription) Channel() string {
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return s.channel
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}
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//todo remove
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func (s *Subscription) SubscriptionResult() chan error {
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return s.ok
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}
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func (s *Subscription) Unsubscribe() error {
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return s.unsub(s)
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}
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func (s *Subscription) Publish(msg message.Data) (string, error) {
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return s.pub(msg)
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}
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var validChannelName = regexp.MustCompile(`^\/(((([a-z]|[A-Z])|[0-9])|(\-|\_|\!|\~|\(|\)|\$|\@)))+(\/(((([a-z]|[A-Z])|[0-9])|(\-|\_|\!|\~|\(|\)|\$|\@)))+)*$`)
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var validChannelPattern = regexp.MustCompile(`^(\/(((([a-z]|[A-Z])|[0-9])|(\-|\_|\!|\~|\(|\)|\$|\@)))+)*\/\*{1,2}$`)
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func IsValidChannel(channel string) bool {
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return validChannelName.MatchString(channel) || validChannelPattern.MatchString(channel)
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}
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