252 lines
7.2 KiB
Go
252 lines
7.2 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package webhook
|
|
|
|
import (
|
|
"context"
|
|
"crypto/tls"
|
|
"fmt"
|
|
"io"
|
|
"net/http"
|
|
"net/url"
|
|
"strings"
|
|
"sync"
|
|
"time"
|
|
|
|
webhook_model "code.gitea.io/gitea/models/webhook"
|
|
"code.gitea.io/gitea/modules/graceful"
|
|
"code.gitea.io/gitea/modules/hostmatcher"
|
|
"code.gitea.io/gitea/modules/log"
|
|
"code.gitea.io/gitea/modules/process"
|
|
"code.gitea.io/gitea/modules/proxy"
|
|
"code.gitea.io/gitea/modules/queue"
|
|
"code.gitea.io/gitea/modules/setting"
|
|
"code.gitea.io/gitea/modules/timeutil"
|
|
webhook_module "code.gitea.io/gitea/modules/webhook"
|
|
|
|
"github.com/gobwas/glob"
|
|
)
|
|
|
|
// Deliver creates the [http.Request] (depending on the webhook type), sends it
|
|
// and records the status and response.
|
|
func Deliver(ctx context.Context, t *webhook_model.HookTask) error {
|
|
w, err := webhook_model.GetWebhookByID(ctx, t.HookID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
defer func() {
|
|
err := recover()
|
|
if err == nil {
|
|
return
|
|
}
|
|
// There was a panic whilst delivering a hook...
|
|
log.Error("PANIC whilst trying to deliver webhook task[%d] to webhook %s Panic: %v\nStacktrace: %s", t.ID, w.URL, err, log.Stack(2))
|
|
}()
|
|
|
|
t.IsDelivered = true
|
|
|
|
handler := GetWebhookHandler(w.Type)
|
|
if handler == nil {
|
|
return fmt.Errorf("GetWebhookHandler %q", w.Type)
|
|
}
|
|
if t.PayloadVersion == 1 {
|
|
handler = defaultHandler{true}
|
|
}
|
|
|
|
req, body, err := handler.NewRequest(ctx, w, t)
|
|
if err != nil {
|
|
return fmt.Errorf("cannot create http request for webhook %s[%d %s]: %w", w.Type, w.ID, w.URL, err)
|
|
}
|
|
|
|
// Record delivery information.
|
|
t.RequestInfo = &webhook_model.HookRequest{
|
|
URL: req.URL.String(),
|
|
HTTPMethod: req.Method,
|
|
Headers: map[string]string{},
|
|
Body: string(body),
|
|
}
|
|
for k, vals := range req.Header {
|
|
t.RequestInfo.Headers[k] = strings.Join(vals, ",")
|
|
}
|
|
|
|
// Add Authorization Header
|
|
authorization, err := w.HeaderAuthorization()
|
|
if err != nil {
|
|
return fmt.Errorf("cannot get Authorization header for webhook %s[%d %s]: %w", w.Type, w.ID, w.URL, err)
|
|
}
|
|
if authorization != "" {
|
|
req.Header.Set("Authorization", authorization)
|
|
t.RequestInfo.Headers["Authorization"] = "******"
|
|
}
|
|
|
|
t.ResponseInfo = &webhook_model.HookResponse{
|
|
Headers: map[string]string{},
|
|
}
|
|
|
|
// OK We're now ready to attempt to deliver the task - we must double check that it
|
|
// has not been delivered in the meantime
|
|
updated, err := webhook_model.MarkTaskDelivered(ctx, t)
|
|
if err != nil {
|
|
log.Error("MarkTaskDelivered[%d]: %v", t.ID, err)
|
|
return fmt.Errorf("unable to mark task[%d] delivered in the db: %w", t.ID, err)
|
|
}
|
|
if !updated {
|
|
// This webhook task has already been attempted to be delivered or is in the process of being delivered
|
|
log.Trace("Webhook Task[%d] already delivered", t.ID)
|
|
return nil
|
|
}
|
|
|
|
// All code from this point will update the hook task
|
|
defer func() {
|
|
t.Delivered = timeutil.TimeStampNanoNow()
|
|
if t.IsSucceed {
|
|
log.Trace("Hook delivered: %s", t.UUID)
|
|
} else if !w.IsActive {
|
|
log.Trace("Hook delivery skipped as webhook is inactive: %s", t.UUID)
|
|
} else {
|
|
log.Trace("Hook delivery failed: %s", t.UUID)
|
|
}
|
|
|
|
if err := webhook_model.UpdateHookTask(ctx, t); err != nil {
|
|
log.Error("UpdateHookTask [%d]: %v", t.ID, err)
|
|
}
|
|
|
|
// Update webhook last delivery status.
|
|
if t.IsSucceed {
|
|
w.LastStatus = webhook_module.HookStatusSucceed
|
|
} else {
|
|
w.LastStatus = webhook_module.HookStatusFail
|
|
}
|
|
if err = webhook_model.UpdateWebhookLastStatus(ctx, w); err != nil {
|
|
log.Error("UpdateWebhookLastStatus: %v", err)
|
|
return
|
|
}
|
|
}()
|
|
|
|
if setting.DisableWebhooks {
|
|
return fmt.Errorf("webhook task skipped (webhooks disabled): [%d]", t.ID)
|
|
}
|
|
|
|
if !w.IsActive {
|
|
log.Trace("Webhook %s in Webhook Task[%d] is not active", w.URL, t.ID)
|
|
return nil
|
|
}
|
|
|
|
resp, err := webhookHTTPClient.Do(req.WithContext(ctx))
|
|
if err != nil {
|
|
t.ResponseInfo.Body = fmt.Sprintf("Delivery: %v", err)
|
|
return fmt.Errorf("unable to deliver webhook task[%d] in %s due to error in http client: %w", t.ID, w.URL, err)
|
|
}
|
|
defer resp.Body.Close()
|
|
|
|
// Status code is 20x can be seen as succeed.
|
|
t.IsSucceed = resp.StatusCode/100 == 2
|
|
t.ResponseInfo.Status = resp.StatusCode
|
|
for k, vals := range resp.Header {
|
|
t.ResponseInfo.Headers[k] = strings.Join(vals, ",")
|
|
}
|
|
|
|
p, err := io.ReadAll(resp.Body)
|
|
if err != nil {
|
|
t.ResponseInfo.Body = fmt.Sprintf("read body: %s", err)
|
|
return fmt.Errorf("unable to deliver webhook task[%d] in %s as unable to read response body: %w", t.ID, w.URL, err)
|
|
}
|
|
t.ResponseInfo.Body = string(p)
|
|
return nil
|
|
}
|
|
|
|
var (
|
|
webhookHTTPClient *http.Client
|
|
once sync.Once
|
|
hostMatchers []glob.Glob
|
|
)
|
|
|
|
func webhookProxy(allowList *hostmatcher.HostMatchList) func(req *http.Request) (*url.URL, error) {
|
|
if setting.Webhook.ProxyURL == "" {
|
|
return proxy.Proxy()
|
|
}
|
|
|
|
once.Do(func() {
|
|
for _, h := range setting.Webhook.ProxyHosts {
|
|
if g, err := glob.Compile(h); err == nil {
|
|
hostMatchers = append(hostMatchers, g)
|
|
} else {
|
|
log.Error("glob.Compile %s failed: %v", h, err)
|
|
}
|
|
}
|
|
})
|
|
|
|
return func(req *http.Request) (*url.URL, error) {
|
|
for _, v := range hostMatchers {
|
|
if v.Match(req.URL.Host) {
|
|
if !allowList.MatchHostName(req.URL.Host) {
|
|
return nil, fmt.Errorf("webhook can only call allowed HTTP servers (check your %s setting), deny '%s'", allowList.SettingKeyHint, req.URL.Host)
|
|
}
|
|
return http.ProxyURL(setting.Webhook.ProxyURLFixed)(req)
|
|
}
|
|
}
|
|
return http.ProxyFromEnvironment(req)
|
|
}
|
|
}
|
|
|
|
// Init starts the hooks delivery thread
|
|
func Init() error {
|
|
timeout := time.Duration(setting.Webhook.DeliverTimeout) * time.Second
|
|
|
|
allowedHostListValue := setting.Webhook.AllowedHostList
|
|
if allowedHostListValue == "" {
|
|
allowedHostListValue = hostmatcher.MatchBuiltinExternal
|
|
}
|
|
allowedHostMatcher := hostmatcher.ParseHostMatchList("webhook.ALLOWED_HOST_LIST", allowedHostListValue)
|
|
|
|
webhookHTTPClient = &http.Client{
|
|
Timeout: timeout,
|
|
Transport: &http.Transport{
|
|
TLSClientConfig: &tls.Config{InsecureSkipVerify: setting.Webhook.SkipTLSVerify},
|
|
Proxy: webhookProxy(allowedHostMatcher),
|
|
DialContext: hostmatcher.NewDialContextWithProxy("webhook", allowedHostMatcher, nil, setting.Webhook.ProxyURLFixed),
|
|
},
|
|
}
|
|
|
|
hookQueue = queue.CreateUniqueQueue(graceful.GetManager().ShutdownContext(), "webhook_sender", handler)
|
|
if hookQueue == nil {
|
|
return fmt.Errorf("unable to create webhook_sender queue")
|
|
}
|
|
go graceful.GetManager().RunWithCancel(hookQueue)
|
|
|
|
go graceful.GetManager().RunWithShutdownContext(populateWebhookSendingQueue)
|
|
|
|
return nil
|
|
}
|
|
|
|
func populateWebhookSendingQueue(ctx context.Context) {
|
|
ctx, _, finished := process.GetManager().AddContext(ctx, "Webhook: Populate sending queue")
|
|
defer finished()
|
|
|
|
lowerID := int64(0)
|
|
for {
|
|
taskIDs, err := webhook_model.FindUndeliveredHookTaskIDs(ctx, lowerID)
|
|
if err != nil {
|
|
log.Error("Unable to populate webhook queue as FindUndeliveredHookTaskIDs failed: %v", err)
|
|
return
|
|
}
|
|
if len(taskIDs) == 0 {
|
|
return
|
|
}
|
|
lowerID = taskIDs[len(taskIDs)-1]
|
|
|
|
for _, taskID := range taskIDs {
|
|
select {
|
|
case <-ctx.Done():
|
|
log.Warn("Shutdown before Webhook Sending queue finishing being populated")
|
|
return
|
|
default:
|
|
}
|
|
if err := enqueueHookTask(taskID); err != nil {
|
|
log.Error("Unable to push HookTask[%d] to the Webhook Sending queue: %v", taskID, err)
|
|
}
|
|
}
|
|
}
|
|
}
|