x/dialer/pht/dialer.go
2022-03-14 20:27:14 +08:00

115 lines
2.4 KiB
Go

package pht
import (
"context"
"net"
"net/http"
"sync"
"time"
"github.com/go-gost/gost/v3/pkg/dialer"
"github.com/go-gost/gost/v3/pkg/logger"
md "github.com/go-gost/gost/v3/pkg/metadata"
"github.com/go-gost/gost/v3/pkg/registry"
pht_util "github.com/go-gost/x/internal/util/pht"
)
func init() {
registry.DialerRegistry().Register("pht", NewDialer)
registry.DialerRegistry().Register("phts", NewTLSDialer)
}
type phtDialer struct {
clients map[string]*pht_util.Client
clientMutex sync.Mutex
tlsEnabled bool
md metadata
logger logger.Logger
options dialer.Options
}
func NewDialer(opts ...dialer.Option) dialer.Dialer {
options := dialer.Options{}
for _, opt := range opts {
opt(&options)
}
return &phtDialer{
clients: make(map[string]*pht_util.Client),
options: options,
}
}
func NewTLSDialer(opts ...dialer.Option) dialer.Dialer {
options := dialer.Options{}
for _, opt := range opts {
opt(&options)
}
return &phtDialer{
tlsEnabled: true,
clients: make(map[string]*pht_util.Client),
options: options,
}
}
func (d *phtDialer) Init(md md.Metadata) (err error) {
if err = d.parseMetadata(md); err != nil {
return
}
return nil
}
func (d *phtDialer) Dial(ctx context.Context, addr string, opts ...dialer.DialOption) (net.Conn, error) {
d.clientMutex.Lock()
defer d.clientMutex.Unlock()
client, ok := d.clients[addr]
if !ok {
var options dialer.DialOptions
for _, opt := range opts {
opt(&options)
}
host := d.md.host
if host == "" {
host = options.Host
}
if h, _, _ := net.SplitHostPort(host); h != "" {
host = h
}
tr := &http.Transport{
// Proxy: http.ProxyFromEnvironment,
DialContext: func(ctx context.Context, network, adr string) (net.Conn, error) {
return options.NetDialer.Dial(ctx, network, addr)
},
ForceAttemptHTTP2: true,
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}
if d.tlsEnabled {
tr.TLSClientConfig = d.options.TLSConfig
}
client = &pht_util.Client{
Host: host,
Client: &http.Client{
// Timeout: 60 * time.Second,
Transport: tr,
},
AuthorizePath: d.md.authorizePath,
PushPath: d.md.pushPath,
PullPath: d.md.pullPath,
TLSEnabled: d.tlsEnabled,
Logger: d.options.Logger,
}
d.clients[addr] = client
}
return client.Dial(ctx, addr)
}