autobrr/internal/proxy/service.go
ze0s 1ae8624e05
build(deps): bump Go to 1.24 (#2060)
* build(deps): bump Go to 1.24
2025-05-01 16:36:55 +02:00

194 lines
4.3 KiB
Go

// Copyright (c) 2021 - 2025, Ludvig Lundgren and the autobrr contributors.
// SPDX-License-Identifier: GPL-2.0-or-later
package proxy
import (
"context"
"net/http"
"net/url"
"time"
"github.com/autobrr/autobrr/internal/domain"
"github.com/autobrr/autobrr/internal/logger"
"github.com/autobrr/autobrr/pkg/errors"
"github.com/autobrr/autobrr/pkg/sharedhttp"
"github.com/rs/zerolog"
netProxy "golang.org/x/net/proxy"
)
type Service interface {
List(ctx context.Context) ([]domain.Proxy, error)
FindByID(ctx context.Context, id int64) (*domain.Proxy, error)
Store(ctx context.Context, p *domain.Proxy) error
Update(ctx context.Context, p *domain.Proxy) error
Delete(ctx context.Context, id int64) error
Test(ctx context.Context, p *domain.Proxy) error
}
type service struct {
log zerolog.Logger
repo domain.ProxyRepo
cache map[int64]*domain.Proxy
}
func NewService(log logger.Logger, repo domain.ProxyRepo) Service {
return &service{
log: log.With().Str("module", "proxy").Logger(),
repo: repo,
cache: make(map[int64]*domain.Proxy),
}
}
func (s *service) Store(ctx context.Context, proxy *domain.Proxy) error {
if err := proxy.Validate(); err != nil {
return errors.Wrap(err, "validation error")
}
err := s.repo.Store(ctx, proxy)
if err != nil {
return err
}
s.cache[proxy.ID] = proxy
return nil
}
func (s *service) Update(ctx context.Context, proxy *domain.Proxy) error {
if err := proxy.Validate(); err != nil {
return errors.Wrap(err, "validation error")
}
err := s.repo.Update(ctx, proxy)
if err != nil {
return err
}
s.cache[proxy.ID] = proxy
// TODO update IRC handlers
return nil
}
func (s *service) FindByID(ctx context.Context, id int64) (*domain.Proxy, error) {
if proxy, ok := s.cache[id]; ok {
return proxy, nil
}
return s.repo.FindByID(ctx, id)
}
func (s *service) List(ctx context.Context) ([]domain.Proxy, error) {
return s.repo.List(ctx)
}
func (s *service) ToggleEnabled(ctx context.Context, id int64, enabled bool) error {
err := s.repo.ToggleEnabled(ctx, id, enabled)
if err != nil {
return err
}
v, ok := s.cache[id]
if !ok {
v.Enabled = !enabled
s.cache[id] = v
}
// TODO update IRC handlers
return nil
}
func (s *service) Delete(ctx context.Context, id int64) error {
err := s.repo.Delete(ctx, id)
if err != nil {
return err
}
delete(s.cache, id)
// TODO update IRC handlers
return nil
}
func (s *service) Test(ctx context.Context, proxy *domain.Proxy) error {
if !proxy.ValidProxyType() {
return errors.New("invalid proxy type %s", proxy.Type)
}
if proxy.Addr == "" {
return errors.New("proxy addr missing")
}
httpClient, err := GetProxiedHTTPClient(proxy)
if err != nil {
return errors.Wrap(err, "could not get http client")
}
req, err := http.NewRequestWithContext(ctx, http.MethodGet, "https://autobrr.com", nil)
if err != nil {
return errors.Wrap(err, "could not create proxy request")
}
resp, err := httpClient.Do(req)
if err != nil {
return errors.Wrap(err, "could not connect to proxy server: %s", proxy.Addr)
}
if resp.StatusCode != http.StatusOK {
return errors.New("got unexpected status code: %d", resp.StatusCode)
}
s.log.Debug().Msgf("proxy %s test OK!", proxy.Addr)
return nil
}
func GetProxiedHTTPClient(p *domain.Proxy) (*http.Client, error) {
proxyUrl, err := url.Parse(p.Addr)
if err != nil {
return nil, errors.Wrap(err, "could not parse proxy url: %s", p.Addr)
}
// set user and pass if not empty
if p.User != "" && p.Pass != "" {
proxyUrl.User = url.UserPassword(p.User, p.Pass)
}
transport := sharedhttp.ProxyTransport
// set user and pass if not empty
if p.User != "" && p.Pass != "" {
proxyUrl.User = url.UserPassword(p.User, p.Pass)
}
switch p.Type {
case domain.ProxyTypeSocks5:
proxyDialer, err := netProxy.FromURL(proxyUrl, netProxy.Direct)
if err != nil {
return nil, errors.Wrap(err, "could not create proxy dialer from url: %s", p.Addr)
}
proxyContextDialer, ok := proxyDialer.(netProxy.ContextDialer)
if !ok {
return nil, errors.Wrap(err, "proxy dialer does not expose DialContext(): %v", proxyDialer)
}
transport.DialContext = proxyContextDialer.DialContext
default:
return nil, errors.New("invalid proxy type: %s", p.Type)
}
client := &http.Client{
Timeout: 30 * time.Second,
Transport: transport,
}
return client, nil
}