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forgejo/models/repo/archiver.go
Peter Gardfjäll 4562d40fce
fix hard-coded timeout and error panic in API archive download endpoint (#20925)
* fix hard-coded timeout and error panic in API archive download endpoint

This commit updates the `GET /api/v1/repos/{owner}/{repo}/archive/{archive}`
endpoint which prior to this PR had a couple of issues.

1. The endpoint had a hard-coded 20s timeout for the archiver to complete after
   which a 500 (Internal Server Error) was returned to client. For a scripted
   API client there was no clear way of telling that the operation timed out and
   that it should retry.

2. Whenever the timeout _did occur_, the code used to panic. This was caused by
   the API endpoint "delegating" to the same call path as the web, which uses a
   slightly different way of reporting errors (HTML rather than JSON for
   example).

   More specifically, `api/v1/repo/file.go#GetArchive` just called through to
   `web/repo/repo.go#Download`, which expects the `Context` to have a `Render`
   field set, but which is `nil` for API calls. Hence, a `nil` pointer error.

The code addresses (1) by dropping the hard-coded timeout. Instead, any
timeout/cancelation on the incoming `Context` is used.

The code addresses (2) by updating the API endpoint to use a separate call path
for the API-triggered archive download. This avoids producing HTML-errors on
errors (it now produces JSON errors).

Signed-off-by: Peter Gardfjäll <peter.gardfjall.work@gmail.com>
2022-08-29 11:45:20 +02:00

116 lines
3.4 KiB
Go

// Copyright 2021 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 repo
import (
"context"
"fmt"
"time"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/timeutil"
"xorm.io/builder"
)
// ArchiverStatus represents repo archive status
type ArchiverStatus int
// enumerate all repo archive statuses
const (
ArchiverGenerating = iota // the archiver is generating
ArchiverReady // it's ready
)
// RepoArchiver represents all archivers
type RepoArchiver struct { //revive:disable-line:exported
ID int64 `xorm:"pk autoincr"`
RepoID int64 `xorm:"index unique(s)"`
Type git.ArchiveType `xorm:"unique(s)"`
Status ArchiverStatus
CommitID string `xorm:"VARCHAR(40) unique(s)"`
CreatedUnix timeutil.TimeStamp `xorm:"INDEX NOT NULL created"`
}
func init() {
db.RegisterModel(new(RepoArchiver))
}
// RelativePath returns the archive path relative to the archive storage root.
func (archiver *RepoArchiver) RelativePath() string {
return fmt.Sprintf("%d/%s/%s.%s", archiver.RepoID, archiver.CommitID[:2], archiver.CommitID, archiver.Type.String())
}
var delRepoArchiver = new(RepoArchiver)
// DeleteRepoArchiver delete archiver
func DeleteRepoArchiver(ctx context.Context, archiver *RepoArchiver) error {
_, err := db.GetEngine(db.DefaultContext).ID(archiver.ID).Delete(delRepoArchiver)
return err
}
// GetRepoArchiver get an archiver
func GetRepoArchiver(ctx context.Context, repoID int64, tp git.ArchiveType, commitID string) (*RepoArchiver, error) {
var archiver RepoArchiver
has, err := db.GetEngine(ctx).Where("repo_id=?", repoID).And("`type`=?", tp).And("commit_id=?", commitID).Get(&archiver)
if err != nil {
return nil, err
}
if has {
return &archiver, nil
}
return nil, nil
}
// AddRepoArchiver adds an archiver
func AddRepoArchiver(ctx context.Context, archiver *RepoArchiver) error {
_, err := db.GetEngine(ctx).Insert(archiver)
return err
}
// UpdateRepoArchiverStatus updates archiver's status
func UpdateRepoArchiverStatus(ctx context.Context, archiver *RepoArchiver) error {
_, err := db.GetEngine(ctx).ID(archiver.ID).Cols("status").Update(archiver)
return err
}
// DeleteAllRepoArchives deletes all repo archives records
func DeleteAllRepoArchives() error {
_, err := db.GetEngine(db.DefaultContext).Where("1=1").Delete(new(RepoArchiver))
return err
}
// FindRepoArchiversOption represents an archiver options
type FindRepoArchiversOption struct {
db.ListOptions
OlderThan time.Duration
}
func (opts FindRepoArchiversOption) toConds() builder.Cond {
cond := builder.NewCond()
if opts.OlderThan > 0 {
cond = cond.And(builder.Lt{"created_unix": time.Now().Add(-opts.OlderThan).Unix()})
}
return cond
}
// FindRepoArchives find repo archivers
func FindRepoArchives(opts FindRepoArchiversOption) ([]*RepoArchiver, error) {
archivers := make([]*RepoArchiver, 0, opts.PageSize)
start, limit := opts.GetSkipTake()
err := db.GetEngine(db.DefaultContext).Where(opts.toConds()).
Asc("created_unix").
Limit(limit, start).
Find(&archivers)
return archivers, err
}
// SetArchiveRepoState sets if a repo is archived
func SetArchiveRepoState(repo *Repository, isArchived bool) (err error) {
repo.IsArchived = isArchived
_, err = db.GetEngine(db.DefaultContext).Where("id = ?", repo.ID).Cols("is_archived").NoAutoTime().Update(repo)
return err
}