gitea/models/bots/task.go
2022-11-25 17:48:48 +08:00

577 lines
13 KiB
Go

// Copyright 2022 The Gitea 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 bots
import (
"bytes"
"context"
"crypto/subtle"
"encoding/binary"
"errors"
"fmt"
"io"
"strconv"
"time"
auth_model "code.gitea.io/gitea/models/auth"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
runnerv1 "gitea.com/gitea/proto-go/runner/v1"
gouuid "github.com/google/uuid"
lru "github.com/hashicorp/golang-lru"
"github.com/nektos/act/pkg/jobparser"
"google.golang.org/protobuf/types/known/timestamppb"
"xorm.io/builder"
)
// Task represents a distribution of job
type Task struct {
ID int64
JobID int64
Job *RunJob `xorm:"-"`
Steps []*TaskStep `xorm:"-"`
Attempt int64
RunnerID int64 `xorm:"index"`
Status Status `xorm:"index"`
Started timeutil.TimeStamp `xorm:"index"`
Stopped timeutil.TimeStamp
RepoID int64 `xorm:"index"`
OwnerID int64 `xorm:"index"`
CommitSHA string `xorm:"index"`
Token string `xorm:"-"`
TokenHash string `xorm:"UNIQUE"` // sha256 of token
TokenSalt string
TokenLastEight string `xorm:"token_last_eight"`
LogFilename string // file name of log
LogInStorage bool // read log from database or from storage
LogLength int64 // lines count
LogSize int64 // blob size
LogIndexes *LogIndexes `xorm:"BLOB"` // line number to offset
LogExpired bool // files that are too old will be deleted
Created timeutil.TimeStamp `xorm:"created"`
Updated timeutil.TimeStamp `xorm:"updated index"`
}
var successfulTokenTaskCache *lru.Cache
func init() {
db.RegisterModel(new(Task), func() error {
if setting.SuccessfulTokensCacheSize > 0 {
var err error
successfulTokenTaskCache, err = lru.New(setting.SuccessfulTokensCacheSize)
if err != nil {
return fmt.Errorf("unable to allocate Task cache: %v", err)
}
} else {
successfulTokenTaskCache = nil
}
return nil
})
}
func (Task) TableName() string {
return "bots_task"
}
func (task *Task) TakeTime() time.Duration {
if task.Started == 0 {
return 0
}
started := task.Started.AsTime()
if task.Status.IsDone() {
return task.Stopped.AsTime().Sub(started)
}
task.Stopped.AsTime().Sub(started)
return time.Since(started).Truncate(time.Second)
}
func (task *Task) IsStopped() bool {
return task.Stopped > 0
}
func (task *Task) GetRepo() string {
return "xxxx"
}
func (task *Task) GetCommitSHA() string {
if task.Job == nil {
return ""
}
if task.Job.Run == nil {
return ""
}
return task.Job.Run.CommitSHA
}
func (task *Task) GetCommitSHAShort() string {
commitSHA := task.GetCommitSHA()
if len(commitSHA) > 8 {
return commitSHA[:8]
}
return commitSHA
}
func (task *Task) GetBuildViewLink() string {
if task.Job == nil || task.Job.Run == nil || task.Job.Run.Repo == nil {
return ""
}
return task.Job.Run.Repo.Link() + "/builds/runs/" + strconv.FormatInt(task.ID, 10)
}
func (task *Task) GetCommitLink() string {
if task.Job == nil || task.Job.Run == nil || task.Job.Run.Repo == nil {
return ""
}
if commitSHA := task.GetCommitSHA(); commitSHA != "" {
return task.Job.Run.Repo.CommitLink(commitSHA)
}
return ""
}
func (task *Task) GetRepoName() string {
if task.Job == nil || task.Job.Run == nil || task.Job.Run.Repo == nil {
return ""
}
return task.Job.Run.Repo.FullName()
}
func (task *Task) GetRepoLink() string {
if task.Job == nil || task.Job.Run == nil || task.Job.Run.Repo == nil {
return ""
}
return task.Job.Run.Repo.Link()
}
func (task *Task) LoadJob(ctx context.Context) error {
if task.Job == nil {
job, err := GetRunJobByID(ctx, task.JobID)
if err != nil {
return err
}
task.Job = job
}
return nil
}
// LoadAttributes load Job Steps if not loaded
func (task *Task) LoadAttributes(ctx context.Context) error {
if task == nil {
return nil
}
if err := task.LoadJob(ctx); err != nil {
return err
}
if err := task.Job.LoadAttributes(ctx); err != nil {
return err
}
if task.Steps == nil { // be careful, an empty slice (not nil) also means loaded
steps, err := GetTaskStepsByTaskID(ctx, task.ID)
if err != nil {
return err
}
task.Steps = steps
}
return nil
}
func (task *Task) GenerateToken() error {
salt, err := util.CryptoRandomString(10)
if err != nil {
return err
}
task.TokenSalt = salt
task.Token = base.EncodeSha1(gouuid.New().String())
task.TokenHash = auth_model.HashToken(task.Token, task.TokenSalt)
task.TokenLastEight = task.Token[len(task.Token)-8:]
return nil
}
type LogIndexes []int64
func (i *LogIndexes) FromDB(b []byte) error {
reader := bytes.NewReader(b)
for {
v, err := binary.ReadVarint(reader)
if err != nil {
if errors.Is(err, io.EOF) {
return nil
}
return fmt.Errorf("binary ReadVarint: %w", err)
}
*i = append(*i, v)
}
}
func (i *LogIndexes) ToDB() ([]byte, error) {
var buf []byte
for _, v := range *i {
buf = binary.AppendVarint(buf, v)
}
return buf, nil
}
func GetTaskByID(ctx context.Context, id int64) (*Task, error) {
var task Task
has, err := db.GetEngine(ctx).Where("id=?", id).Get(&task)
if err != nil {
return nil, err
} else if !has {
return nil, fmt.Errorf("task with id %d: %w", id, util.ErrNotExist)
}
return &task, nil
}
func GetTaskByToken(ctx context.Context, token string) (*Task, error) {
errNotExist := fmt.Errorf("task with token %q: %w", token, util.ErrNotExist)
if token == "" {
return nil, errNotExist
}
// A token is defined as being SHA1 sum these are 40 hexadecimal bytes long
if len(token) != 40 {
return nil, errNotExist
}
for _, x := range []byte(token) {
if x < '0' || (x > '9' && x < 'a') || x > 'f' {
return nil, errNotExist
}
}
lastEight := token[len(token)-8:]
if id := getTaskIDFromCache(token); id > 0 {
task := &Task{
TokenLastEight: lastEight,
}
// Re-get the task from the db in case it has been deleted in the intervening period
has, err := db.GetEngine(db.DefaultContext).ID(id).Get(task)
if err != nil {
return nil, err
}
if has {
return task, nil
}
successfulTokenTaskCache.Remove(token)
}
var tasks []*Task
err := db.GetEngine(ctx).Where("token_last_eight = ?", lastEight).Find(&tasks)
if err != nil {
return nil, err
} else if len(tasks) == 0 {
return nil, errNotExist
}
for _, t := range tasks {
tempHash := auth_model.HashToken(token, t.TokenSalt)
if subtle.ConstantTimeCompare([]byte(t.TokenHash), []byte(tempHash)) == 1 {
if successfulTokenTaskCache != nil {
successfulTokenTaskCache.Add(token, t.ID)
}
return t, nil
}
}
return nil, errNotExist
}
func CreateTaskForRunner(ctx context.Context, runner *Runner) (*Task, bool, error) {
dbCtx, commiter, err := db.TxContext(ctx)
if err != nil {
return nil, false, err
}
defer commiter.Close()
ctx = dbCtx.WithContext(ctx)
e := db.GetEngine(ctx)
jobCond := builder.NewCond()
if runner.RepoID != 0 {
jobCond = builder.Eq{"repo_id": runner.RepoID}
} else if runner.OwnerID != 0 {
jobCond = builder.In("repo_id", builder.Select("id").From("repository").Where(builder.Eq{"owner_id": runner.OwnerID}))
}
if jobCond.IsValid() {
jobCond = builder.In("run_id", builder.Select("id").From(Run{}.TableName()).Where(jobCond))
}
var jobs []*RunJob
if err := e.Where("task_id=? AND status=?", 0, StatusWaiting).And(jobCond).Asc("id").Find(&jobs); err != nil {
return nil, false, err
}
// TODO: a more efficient way to filter labels
var job *RunJob
labels := append(runner.AgentLabels, runner.CustomLabels...)
log.Trace("runner labels: %v", labels)
for _, v := range jobs {
if isSubset(labels, v.RunsOn) {
job = v
break
}
}
if job == nil {
return nil, false, nil
}
if err := job.LoadAttributes(ctx); err != nil {
return nil, false, err
}
now := timeutil.TimeStampNow()
job.Attempt++
job.Started = now
job.Status = StatusRunning
task := &Task{
JobID: job.ID,
Attempt: job.Attempt,
RunnerID: runner.ID,
Started: now,
Status: StatusRunning,
RepoID: job.RepoID,
OwnerID: job.OwnerID,
CommitSHA: job.CommitSHA,
}
if err := task.GenerateToken(); err != nil {
return nil, false, err
}
var workflowJob *jobparser.Job
if gots, err := jobparser.Parse(job.WorkflowPayload); err != nil {
return nil, false, fmt.Errorf("parse workflow of job %d: %w", job.ID, err)
} else if len(gots) != 1 {
return nil, false, fmt.Errorf("workflow of job %d: not signle workflow", job.ID)
} else {
_, workflowJob = gots[0].Job()
}
if _, err := e.Insert(task); err != nil {
return nil, false, err
}
task.LogFilename = logFileName(job.Run.Repo.FullName(), task.ID)
if _, err := e.ID(task.ID).Cols("log_filename").Update(task); err != nil {
return nil, false, err
}
steps := make([]*TaskStep, len(workflowJob.Steps))
for i, v := range workflowJob.Steps {
steps[i] = &TaskStep{
Name: v.String(),
TaskID: task.ID,
Number: int64(i),
Status: StatusWaiting,
}
}
if _, err := e.Insert(steps); err != nil {
return nil, false, err
}
task.Steps = steps
job.TaskID = task.ID
if n, err := UpdateRunJob(ctx, job, builder.Eq{"task_id": 0}); err != nil {
return nil, false, err
} else if n != 1 {
return nil, false, nil
}
if job.Run.Status.IsWaiting() {
job.Run.Status = StatusRunning
job.Run.Started = now
if err := UpdateRun(ctx, job.Run, "status", "started"); err != nil {
return nil, false, err
}
}
task.Job = job
if err := commiter.Commit(); err != nil {
return nil, false, err
}
return task, true, nil
}
func UpdateTask(ctx context.Context, task *Task, cols ...string) error {
sess := db.GetEngine(ctx).ID(task.ID)
if len(cols) > 0 {
sess.Cols(cols...)
}
_, err := sess.Update(task)
return err
}
func UpdateTaskByState(state *runnerv1.TaskState) (*Task, error) {
stepStates := map[int64]*runnerv1.StepState{}
for _, v := range state.Steps {
stepStates[v.Id] = v
}
ctx, commiter, err := db.TxContext(db.DefaultContext)
if err != nil {
return nil, err
}
defer commiter.Close()
e := db.GetEngine(ctx)
task := &Task{}
if has, err := e.ID(state.Id).Get(task); err != nil {
return nil, err
} else if !has {
return nil, util.ErrNotExist
}
if state.Result != runnerv1.Result_RESULT_UNSPECIFIED {
task.Status = Status(state.Result)
task.Stopped = timeutil.TimeStamp(state.StoppedAt.AsTime().Unix())
if _, err := UpdateRunJob(ctx, &RunJob{
ID: task.JobID,
Status: task.Status,
Stopped: task.Stopped,
}, nil); err != nil {
return nil, err
}
}
if _, err := e.ID(task.ID).Update(task); err != nil {
return nil, err
}
if err := task.LoadAttributes(ctx); err != nil {
return nil, err
}
prevStepDone := true
for _, step := range task.Steps {
var result runnerv1.Result
if v, ok := stepStates[step.Number]; ok {
result = v.Result
step.LogIndex = v.LogIndex
step.LogLength = v.LogLength
step.Started = convertTimestamp(v.StartedAt)
step.Stopped = convertTimestamp(v.StoppedAt)
}
if result != runnerv1.Result_RESULT_UNSPECIFIED {
step.Status = Status(result)
prevStepDone = true
} else if prevStepDone {
step.Status = StatusRunning
prevStepDone = false
}
if _, err := e.ID(step.ID).Update(step); err != nil {
return nil, err
}
}
if err := commiter.Commit(); err != nil {
return nil, err
}
return task, nil
}
func StopTask(ctx context.Context, taskID int64, status Status) error {
if !status.IsDone() {
return fmt.Errorf("cannot stop task with status %v", status)
}
e := db.GetEngine(ctx)
task := &Task{}
if has, err := e.ID(taskID).Get(task); err != nil {
return err
} else if !has {
return util.ErrNotExist
}
if task.Status.IsDone() {
return nil
}
now := timeutil.TimeStampNow()
task.Status = status
task.Stopped = now
if _, err := UpdateRunJob(ctx, &RunJob{
ID: task.JobID,
Status: task.Status,
Stopped: task.Stopped,
}, nil); err != nil {
return err
}
if _, err := e.ID(task.ID).Update(task); err != nil {
return err
}
if err := task.LoadAttributes(ctx); err != nil {
return err
}
for _, step := range task.Steps {
if !step.Status.IsDone() {
step.Status = status
if step.Started == 0 {
step.Started = now
}
step.Stopped = now
}
if _, err := e.ID(step.ID).Update(step); err != nil {
return err
}
}
return nil
}
func isSubset(set, subset []string) bool {
m := make(map[string]struct{}, len(set))
for _, v := range set {
m[v] = struct{}{}
}
for _, v := range subset {
if _, ok := m[v]; !ok {
return false
}
}
return true
}
func convertTimestamp(timestamp *timestamppb.Timestamp) timeutil.TimeStamp {
if timestamp.GetSeconds() == 0 && timestamp.GetNanos() == 0 {
return timeutil.TimeStamp(0)
}
return timeutil.TimeStamp(timestamp.AsTime().Unix())
}
func logFileName(repoFullName string, taskID int64) string {
return fmt.Sprintf("%s/%02x/%d.log", repoFullName, taskID%256, taskID)
}
func getTaskIDFromCache(token string) int64 {
if successfulTokenTaskCache == nil {
return 0
}
tInterface, ok := successfulTokenTaskCache.Get(token)
if !ok {
return 0
}
t, ok := tInterface.(int64)
if !ok {
return 0
}
return t
}