Oscar Zhou
61 lines
1.6 KiB
Go
61 lines
1.6 KiB
Go
package offlinegate
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import (
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"log"
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"net/http"
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"strings"
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"sync"
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httperror "github.com/portainer/libhttp/error"
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)
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const RedirectReasonAdminInitTimeout string = "AdminInitTimeout"
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// OfflineGateWrapper is an entity used to maintain the administrator initialization status
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type OfflineGateWrapper struct {
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lock *sync.Mutex
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adminInitDisabled bool
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}
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// NewOfflineGateWrapper creates a new gate wrapper
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func NewOfflineGateWrapper() *OfflineGateWrapper {
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return &OfflineGateWrapper{
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lock: &sync.Mutex{},
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adminInitDisabled: false,
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}
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}
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func (o *OfflineGateWrapper) DisableInstance() {
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o.lock.Lock()
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defer o.lock.Unlock()
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o.adminInitDisabled = true
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}
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func (o *OfflineGateWrapper) WasDisabled() bool {
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return o.adminInitDisabled
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}
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// WaitingMiddlewareWrapper checks whether administrator initialisation timeout. If so, it will return the error with redirect reason,
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// Otherwise, it will pass through the request to next
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func (o *OfflineGateWrapper) WaitingMiddlewareWrapper(timeoutCh chan interface{}, next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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go func() {
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<-timeoutCh
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log.Println("[INFO] Please restart Portainer instance and initialize the administrator")
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o.DisableInstance()
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}()
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if o.WasDisabled() && strings.HasPrefix(r.RequestURI, "/api") {
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if r.RequestURI != "/api/status" {
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w.Header().Add("redirect_reason", RedirectReasonAdminInitTimeout)
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httperror.WriteError(w, http.StatusPermanentRedirect, "Administrator initialization timeout", nil)
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return
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}
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}
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next.ServeHTTP(w, r)
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})
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}
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