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downstream: stop sending HTTP OPTIONS request on WEBPUSH REGISTER 

We were sending a test notification later anyways. Let's just do
that to check that the endpoint accepts our messages.
This commit is contained in:
Simon Ser 2022-09-30 12:20:07 +02:00
parent 926dcb37ac
commit 90be9a8ab9
1 changed files with 15 additions and 51 deletions
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66
downstream.go
View File

@ -9,7 +9,6 @@ import (
"fmt"
"io"
"net"
"net/http"
"strconv"
"strings"
"time"
@ -3060,14 +3059,6 @@ func (dc *downstreamConn) handleMessageRegistered(ctx context.Context, msg *irc.
return err
}
if err := checkWebPushEndpoint(ctx, endpoint); err != nil {
dc.logger.Printf("failed to check Web push endpoint %q: %v", endpoint, err)
return ircError{&irc.Message{
Command: "FAIL",
Params: []string{"WEBPUSH", "INVALID_PARAMS", subcommand, "Invalid endpoint"},
}}
}
rawKeys := irc.ParseTags(keysStr)
authKey, hasAuthKey := rawKeys["auth"]
p256dhKey, hasP256dh := rawKeys["p256dh"]
@ -3112,16 +3103,7 @@ func (dc *downstreamConn) handleMessageRegistered(ctx context.Context, msg *irc.
networkID = dc.network.ID
}
// TODO: limit max number of subscriptions, prune old ones
if err := dc.user.srv.db.StoreWebPushSubscription(ctx, dc.user.ID, networkID, &newSub); err != nil {
dc.logger.Printf("failed to store Web push subscription: %v", err)
return ircError{&irc.Message{
Command: "FAIL",
Params: []string{"WEBPUSH", "INTERNAL_ERROR", subcommand, "Internal error"},
}}
}
// Send a test Web Push message, to make sure the endpoint is valid
err = dc.srv.sendWebPush(ctx, &webpush.Subscription{
Endpoint: newSub.Endpoint,
Keys: webpush.Keys{
@ -3134,6 +3116,20 @@ func (dc *downstreamConn) handleMessageRegistered(ctx context.Context, msg *irc.
})
if err != nil {
dc.logger.Printf("failed to send Web push notification to endpoint %q: %v", newSub.Endpoint, err)
return ircError{&irc.Message{
Command: "FAIL",
Params: []string{"WEBPUSH", "INVALID_PARAMS", subcommand, "Invalid endpoint"},
}}
}
// TODO: limit max number of subscriptions, prune old ones
if err := dc.user.srv.db.StoreWebPushSubscription(ctx, dc.user.ID, networkID, &newSub); err != nil {
dc.logger.Printf("failed to store Web push subscription: %v", err)
return ircError{&irc.Message{
Command: "FAIL",
Params: []string{"WEBPUSH", "INTERNAL_ERROR", subcommand, "Internal error"},
}}
}
dc.SendMessage(&irc.Message{
@ -3336,35 +3332,3 @@ func sendNames(dc *downstreamConn, ch *upstreamChannel) {
dc.SendMessage(msg)
}
}
func checkWebPushEndpoint(ctx context.Context, endpoint string) error {
req, err := http.NewRequestWithContext(ctx, http.MethodOptions, endpoint, nil)
if err != nil {
return fmt.Errorf("failed to create HTTP request: %v", err)
}
resp, err := http.DefaultClient.Do(req)
if err != nil {
return fmt.Errorf("HTTP request failed: %v", err)
}
resp.Body.Close()
if resp.StatusCode/100 != 2 {
return fmt.Errorf("HTTP request failed: %v", resp.Status)
}
allow := strings.Split(resp.Header.Get("Allow"), ",")
found := false
for _, method := range allow {
if strings.EqualFold(strings.TrimSpace(method), http.MethodPost) {
found = true
break
}
}
if !found {
return fmt.Errorf("POST missing from Allow header in OPTIONS response")
}
return nil
}