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Refactor Webhook + Add X-Hub-Signature (#16176)

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This PR removes multiple unneeded fields from the `HookTask` struct and adds the two headers `X-Hub-Signature` and `X-Hub-Signature-256`.

## ⚠️ BREAKING ⚠️ 

* The `Secret` field is no longer passed as part of the payload.
* "Breaking" change (or fix?): The webhook history shows the real called url and not the url registered in the webhook (`deliver.go`@129).

Close #16115
Fixes #7788
Fixes #11755

Co-authored-by: zeripath <art27@cantab.net>
This commit is contained in:
KN4CK3R 2021-06-27 21:21:09 +02:00 • committed by GitHub
parent 0b27b93728
commit 9b1b4b5433
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GPG key ID: 4AEE18F83AFDEB23
18 changed files with 130 additions and 179 deletions
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40
services/webhook/webhook.go
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@ -5,9 +5,6 @@
package webhook
import (
"crypto/hmac"
"crypto/sha256"
"encoding/hex"
"fmt"
"strings"
@ -21,12 +18,12 @@ import (
)
type webhook struct {
name models.HookTaskType
name models.HookType
payloadCreator func(p api.Payloader, event models.HookEventType, meta string) (api.Payloader, error)
}
var (
webhooks = map[models.HookTaskType]*webhook{
webhooks = map[models.HookType]*webhook{
models.SLACK: {
name: models.SLACK,
payloadCreator: GetSlackPayload,
@ -60,7 +57,7 @@ var (
// RegisterWebhook registers a webhook
func RegisterWebhook(name string, webhook *webhook) {
webhooks[models.HookTaskType(name)] = webhook
webhooks[models.HookType(name)] = webhook
}
// IsValidHookTaskType returns true if a webhook registered
@ -68,7 +65,7 @@ func IsValidHookTaskType(name string) bool {
if name == models.GITEA || name == models.GOGS {
return true
}
_, ok := webhooks[models.HookTaskType(name)]
_, ok := webhooks[models.HookType(name)]
return ok
}
@ -161,35 +158,14 @@ func prepareWebhook(w *models.Webhook, repo *models.Repository, event models.Hoo
return fmt.Errorf("create payload for %s[%s]: %v", w.Type, event, err)
}
} else {
p.SetSecret(w.Secret)
payloader = p
}
var signature string
if len(w.Secret) > 0 {
data, err := payloader.JSONPayload()
if err != nil {
log.Error("prepareWebhooks.JSONPayload: %v", err)
}
sig := hmac.New(sha256.New, []byte(w.Secret))
_, err = sig.Write(data)
if err != nil {
log.Error("prepareWebhooks.sigWrite: %v", err)
}
signature = hex.EncodeToString(sig.Sum(nil))
}
if err = models.CreateHookTask(&models.HookTask{
RepoID: repo.ID,
HookID: w.ID,
Typ: w.Type,
URL: w.URL,
Signature: signature,
Payloader: payloader,
HTTPMethod: w.HTTPMethod,
ContentType: w.ContentType,
EventType: event,
IsSSL: w.IsSSL,
RepoID: repo.ID,
HookID: w.ID,
Payloader: payloader,
EventType: event,
}); err != nil {
return fmt.Errorf("CreateHookTask: %v", err)
}