gitroast/models/webhook.go

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// Copyright 2014 The Gogs Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package models
import (
"crypto/tls"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"strings"
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"sync"
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"time"
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"github.com/Unknwon/com"
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"github.com/go-xorm/xorm"
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api "github.com/gogits/go-gogs-client"
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"github.com/gogits/gogs/modules/httplib"
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"github.com/gogits/gogs/modules/log"
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"github.com/gogits/gogs/modules/setting"
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"github.com/gogits/gogs/modules/uuid"
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)
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type HookContentType int
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const (
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JSON HookContentType = iota + 1
FORM
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)
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var hookContentTypes = map[string]HookContentType{
"json": JSON,
"form": FORM,
}
// ToHookContentType returns HookContentType by given name.
func ToHookContentType(name string) HookContentType {
return hookContentTypes[name]
}
func (t HookContentType) Name() string {
switch t {
case JSON:
return "json"
case FORM:
return "form"
}
return ""
}
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// IsValidHookContentType returns true if given name is a valid hook content type.
func IsValidHookContentType(name string) bool {
_, ok := hookContentTypes[name]
return ok
}
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type HookEvents struct {
Create bool `json:"create"`
Push bool `json:"push"`
}
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// HookEvent represents events that will delivery hook.
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type HookEvent struct {
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PushOnly bool `json:"push_only"`
SendEverything bool `json:"send_everything"`
ChooseEvents bool `json:"choose_events"`
HookEvents `json:"events"`
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}
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type HookStatus int
const (
HOOK_STATUS_NONE = iota
HOOK_STATUS_SUCCEED
HOOK_STATUS_FAILED
)
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// Webhook represents a web hook object.
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type Webhook struct {
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ID int64 `xorm:"pk autoincr"`
RepoID int64
OrgID int64
URL string `xorm:"url TEXT"`
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ContentType HookContentType
Secret string `xorm:"TEXT"`
Events string `xorm:"TEXT"`
*HookEvent `xorm:"-"`
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IsSSL bool `xorm:"is_ssl"`
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IsActive bool
HookTaskType HookTaskType
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Meta string `xorm:"TEXT"` // store hook-specific attributes
LastStatus HookStatus // Last delivery status
Created time.Time `xorm:"CREATED"`
Updated time.Time `xorm:"UPDATED"`
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}
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func (w *Webhook) AfterSet(colName string, _ xorm.Cell) {
var err error
switch colName {
case "events":
w.HookEvent = &HookEvent{}
if err = json.Unmarshal([]byte(w.Events), w.HookEvent); err != nil {
log.Error(3, "Unmarshal[%d]: %v", w.ID, err)
}
case "created":
w.Created = regulateTimeZone(w.Created)
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}
}
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func (w *Webhook) GetSlackHook() *SlackMeta {
s := &SlackMeta{}
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if err := json.Unmarshal([]byte(w.Meta), s); err != nil {
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log.Error(4, "webhook.GetSlackHook(%d): %v", w.ID, err)
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}
return s
}
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// History returns history of webhook by given conditions.
func (w *Webhook) History(page int) ([]*HookTask, error) {
return HookTasks(w.ID, page)
}
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// UpdateEvent handles conversion from HookEvent to Events.
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func (w *Webhook) UpdateEvent() error {
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data, err := json.Marshal(w.HookEvent)
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w.Events = string(data)
return err
}
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// HasCreateEvent returns true if hook enabled create event.
func (w *Webhook) HasCreateEvent() bool {
return w.SendEverything ||
(w.ChooseEvents && w.HookEvents.Create)
}
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// HasPushEvent returns true if hook enabled push event.
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func (w *Webhook) HasPushEvent() bool {
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return w.PushOnly || w.SendEverything ||
(w.ChooseEvents && w.HookEvents.Push)
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}
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func (w *Webhook) EventsArray() []string {
events := make([]string, 0, 2)
if w.HasCreateEvent() {
events = append(events, "create")
}
if w.HasPushEvent() {
events = append(events, "push")
}
return events
}
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// CreateWebhook creates a new web hook.
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func CreateWebhook(w *Webhook) error {
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_, err := x.Insert(w)
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return err
}
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// GetWebhookByID returns webhook by given ID.
func GetWebhookByID(id int64) (*Webhook, error) {
w := new(Webhook)
has, err := x.Id(id).Get(w)
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if err != nil {
return nil, err
} else if !has {
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return nil, ErrWebhookNotExist{id}
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}
return w, nil
}
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// GetActiveWebhooksByRepoID returns all active webhooks of repository.
func GetActiveWebhooksByRepoID(repoID int64) (ws []*Webhook, err error) {
err = x.Where("repo_id=?", repoID).And("is_active=?", true).Find(&ws)
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return ws, err
}
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// GetWebhooksByRepoId returns all webhooks of repository.
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func GetWebhooksByRepoId(repoID int64) (ws []*Webhook, err error) {
err = x.Find(&ws, &Webhook{RepoID: repoID})
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return ws, err
}
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// UpdateWebhook updates information of webhook.
func UpdateWebhook(w *Webhook) error {
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_, err := x.Id(w.ID).AllCols().Update(w)
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return err
}
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// DeleteWebhook deletes webhook of repository.
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func DeleteWebhook(id int64) (err error) {
sess := x.NewSession()
defer sessionRelease(sess)
if err = sess.Begin(); err != nil {
return err
}
if _, err = sess.Delete(&Webhook{ID: id}); err != nil {
return err
} else if _, err = sess.Delete(&HookTask{HookID: id}); err != nil {
return err
}
return sess.Commit()
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}
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// GetWebhooksByOrgId returns all webhooks for an organization.
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func GetWebhooksByOrgId(orgID int64) (ws []*Webhook, err error) {
err = x.Find(&ws, &Webhook{OrgID: orgID})
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return ws, err
}
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// GetActiveWebhooksByOrgID returns all active webhooks for an organization.
func GetActiveWebhooksByOrgID(orgID int64) (ws []*Webhook, err error) {
err = x.Where("org_id=?", orgID).And("is_active=?", true).Find(&ws)
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return ws, err
}
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// ___ ___ __ ___________ __
// / | \ ____ ____ | | _\__ ___/____ _____| | __
// / ~ \/ _ \ / _ \| |/ / | | \__ \ / ___/ |/ /
// \ Y ( <_> | <_> ) < | | / __ \_\___ \| <
// \___|_ / \____/ \____/|__|_ \ |____| (____ /____ >__|_ \
// \/ \/ \/ \/ \/
type HookTaskType int
const (
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GOGS HookTaskType = iota + 1
SLACK
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)
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var hookTaskTypes = map[string]HookTaskType{
"gogs": GOGS,
"slack": SLACK,
}
// ToHookTaskType returns HookTaskType by given name.
func ToHookTaskType(name string) HookTaskType {
return hookTaskTypes[name]
}
func (t HookTaskType) Name() string {
switch t {
case GOGS:
return "gogs"
case SLACK:
return "slack"
}
return ""
}
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// IsValidHookTaskType returns true if given name is a valid hook task type.
func IsValidHookTaskType(name string) bool {
_, ok := hookTaskTypes[name]
return ok
}
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type HookEventType string
const (
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HOOK_EVENT_CREATE HookEventType = "create"
HOOK_EVENT_PUSH HookEventType = "push"
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)
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// HookRequest represents hook task request information.
type HookRequest struct {
Headers map[string]string `json:"headers"`
}
// HookResponse represents hook task response information.
type HookResponse struct {
Status int `json:"status"`
Headers map[string]string `json:"headers"`
Body string `json:"body"`
}
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// HookTask represents a hook task.
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type HookTask struct {
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ID int64 `xorm:"pk autoincr"`
RepoID int64 `xorm:"INDEX"`
HookID int64
UUID string
Type HookTaskType
URL string
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api.Payloader `xorm:"-"`
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PayloadContent string `xorm:"TEXT"`
ContentType HookContentType
EventType HookEventType
IsSSL bool
IsDelivered bool
Delivered int64
DeliveredString string `xorm:"-"`
// History info.
IsSucceed bool
RequestContent string `xorm:"TEXT"`
RequestInfo *HookRequest `xorm:"-"`
ResponseContent string `xorm:"TEXT"`
ResponseInfo *HookResponse `xorm:"-"`
}
func (t *HookTask) BeforeUpdate() {
if t.RequestInfo != nil {
t.RequestContent = t.MarshalJSON(t.RequestInfo)
}
if t.ResponseInfo != nil {
t.ResponseContent = t.MarshalJSON(t.ResponseInfo)
}
}
func (t *HookTask) AfterSet(colName string, _ xorm.Cell) {
var err error
switch colName {
case "delivered":
t.DeliveredString = time.Unix(0, t.Delivered).Format("2006-01-02 15:04:05 MST")
case "request_content":
if len(t.RequestContent) == 0 {
return
}
t.RequestInfo = &HookRequest{}
if err = json.Unmarshal([]byte(t.RequestContent), t.RequestInfo); err != nil {
log.Error(3, "Unmarshal[%d]: %v", t.ID, err)
}
case "response_content":
if len(t.ResponseContent) == 0 {
return
}
t.ResponseInfo = &HookResponse{}
if err = json.Unmarshal([]byte(t.ResponseContent), t.ResponseInfo); err != nil {
log.Error(3, "Unmarshal[%d]: %v", t.ID, err)
}
}
}
func (t *HookTask) MarshalJSON(v interface{}) string {
p, err := json.Marshal(v)
if err != nil {
log.Error(3, "Marshal[%d]: %v", t.ID, err)
}
return string(p)
}
// HookTasks returns a list of hook tasks by given conditions.
func HookTasks(hookID int64, page int) ([]*HookTask, error) {
tasks := make([]*HookTask, 0, setting.Webhook.PagingNum)
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return tasks, x.Limit(setting.Webhook.PagingNum, (page-1)*setting.Webhook.PagingNum).Where("hook_id=?", hookID).Desc("id").Find(&tasks)
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}
// CreateHookTask creates a new hook task,
// it handles conversion from Payload to PayloadContent.
func CreateHookTask(t *HookTask) error {
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data, err := t.Payloader.JSONPayload()
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if err != nil {
return err
}
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t.UUID = uuid.NewV4().String()
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t.PayloadContent = string(data)
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_, err = x.Insert(t)
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return err
}
// UpdateHookTask updates information of hook task.
func UpdateHookTask(t *HookTask) error {
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_, err := x.Id(t.ID).AllCols().Update(t)
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return err
}
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// PrepareWebhooks adds new webhooks to task queue for given payload.
func PrepareWebhooks(repo *Repository, event HookEventType, p api.Payloader) error {
if err := repo.GetOwner(); err != nil {
return fmt.Errorf("GetOwner: %v", err)
}
ws, err := GetActiveWebhooksByRepoID(repo.ID)
if err != nil {
return fmt.Errorf("GetActiveWebhooksByRepoID: %v", err)
}
// check if repo belongs to org and append additional webhooks
if repo.Owner.IsOrganization() {
// get hooks for org
orgws, err := GetActiveWebhooksByOrgID(repo.OwnerID)
if err != nil {
return fmt.Errorf("GetActiveWebhooksByOrgID: %v", err)
}
ws = append(ws, orgws...)
}
if len(ws) == 0 {
return nil
}
for _, w := range ws {
switch event {
case HOOK_EVENT_CREATE:
if !w.HasCreateEvent() {
continue
}
case HOOK_EVENT_PUSH:
if !w.HasPushEvent() {
continue
}
}
switch w.HookTaskType {
case SLACK:
p, err = GetSlackPayload(p, event, w.Meta)
if err != nil {
return fmt.Errorf("GetSlackPayload: %v", err)
}
default:
p.SetSecret(w.Secret)
}
if err = CreateHookTask(&HookTask{
RepoID: repo.ID,
HookID: w.ID,
Type: w.HookTaskType,
URL: w.URL,
Payloader: p,
ContentType: w.ContentType,
EventType: HOOK_EVENT_PUSH,
IsSSL: w.IsSSL,
}); err != nil {
return fmt.Errorf("CreateHookTask: %v", err)
}
}
return nil
}
// UniqueQueue represents a queue that guarantees only one instance of same ID is in the line.
type UniqueQueue struct {
lock sync.Mutex
ids map[string]bool
queue chan string
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}
func (q *UniqueQueue) Queue() <-chan string {
return q.queue
}
func NewUniqueQueue(queueLength int) *UniqueQueue {
if queueLength <= 0 {
queueLength = 100
}
return &UniqueQueue{
ids: make(map[string]bool),
queue: make(chan string, queueLength),
}
}
func (q *UniqueQueue) Remove(id interface{}) {
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q.lock.Lock()
defer q.lock.Unlock()
delete(q.ids, com.ToStr(id))
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}
func (q *UniqueQueue) Add(id interface{}) {
newid := com.ToStr(id)
if q.Exist(id) {
return
}
q.lock.Lock()
q.ids[newid] = true
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q.lock.Unlock()
q.queue <- newid
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}
func (q *UniqueQueue) Exist(id interface{}) bool {
q.lock.Lock()
defer q.lock.Unlock()
return q.ids[com.ToStr(id)]
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}
var HookQueue = NewUniqueQueue(setting.Webhook.QueueLength)
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func (t *HookTask) deliver() {
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t.IsDelivered = true
timeout := time.Duration(setting.Webhook.DeliverTimeout) * time.Second
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req := httplib.Post(t.URL).SetTimeout(timeout, timeout).
Header("X-Gogs-Delivery", t.UUID).
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Header("X-Gogs-Event", string(t.EventType)).
SetTLSClientConfig(&tls.Config{InsecureSkipVerify: setting.Webhook.SkipTLSVerify})
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switch t.ContentType {
case JSON:
req = req.Header("Content-Type", "application/json").Body(t.PayloadContent)
case FORM:
req.Param("payload", t.PayloadContent)
}
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// Record delivery information.
t.RequestInfo = &HookRequest{
Headers: map[string]string{},
}
for k, vals := range req.Headers() {
t.RequestInfo.Headers[k] = strings.Join(vals, ",")
}
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t.ResponseInfo = &HookResponse{
Headers: map[string]string{},
}
defer func() {
t.Delivered = time.Now().UTC().UnixNano()
if t.IsSucceed {
log.Trace("Hook delivered: %s", t.UUID)
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}
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// Update webhook last delivery status.
w, err := GetWebhookByID(t.HookID)
if err != nil {
log.Error(5, "GetWebhookByID: %v", err)
return
}
if t.IsSucceed {
w.LastStatus = HOOK_STATUS_SUCCEED
} else {
w.LastStatus = HOOK_STATUS_FAILED
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}
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if err = UpdateWebhook(w); err != nil {
log.Error(5, "UpdateWebhook: %v", err)
return
}
}()
resp, err := req.Response()
if err != nil {
t.ResponseInfo.Body = fmt.Sprintf("Delivery: %v", err)
return
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}
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defer resp.Body.Close()
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// 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 := ioutil.ReadAll(resp.Body)
if err != nil {
t.ResponseInfo.Body = fmt.Sprintf("read body: %s", err)
return
}
t.ResponseInfo.Body = string(p)
switch t.Type {
case SLACK:
if t.ResponseInfo.Body != "ok" {
log.Error(5, "slack failed with: %s", t.ResponseInfo.Body)
t.IsSucceed = false
}
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}
}
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// DeliverHooks checks and delivers undelivered hooks.
// TODO: shoot more hooks at same time.
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func DeliverHooks() {
tasks := make([]*HookTask, 0, 10)
x.Where("is_delivered=?", false).Iterate(new(HookTask),
func(idx int, bean interface{}) error {
t := bean.(*HookTask)
t.deliver()
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tasks = append(tasks, t)
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return nil
})
// Update hook task status.
for _, t := range tasks {
if err := UpdateHookTask(t); err != nil {
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log.Error(4, "UpdateHookTask(%d): %v", t.ID, err)
}
}
// Start listening on new hook requests.
for repoID := range HookQueue.Queue() {
log.Trace("DeliverHooks[%v]: processing delivery hooks", repoID)
HookQueue.Remove(repoID)
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tasks = make([]*HookTask, 0, 5)
if err := x.Where("repo_id=? AND is_delivered=?", repoID, false).Find(&tasks); err != nil {
log.Error(4, "Get repository(%d) hook tasks: %v", repoID, err)
continue
}
for _, t := range tasks {
t.deliver()
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if err := UpdateHookTask(t); err != nil {
log.Error(4, "UpdateHookTask[%d]: %v", t.ID, err)
continue
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}
}
}
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}
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func InitDeliverHooks() {
go DeliverHooks()
}