sing-box/route/rule_set.go

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2023-12-01 05:24:12 +00:00
package route
import (
"context"
"net"
"net/http"
"sync"
"github.com/sagernet/sing-box/adapter"
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/option"
E "github.com/sagernet/sing/common/exceptions"
"github.com/sagernet/sing/common/logger"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
)
func NewRuleSet(ctx context.Context, router adapter.Router, logger logger.ContextLogger, options option.RuleSet) (adapter.RuleSet, error) {
switch options.Type {
case C.RuleSetTypeLocal:
return NewLocalRuleSet(router, options)
case C.RuleSetTypeRemote:
return NewRemoteRuleSet(ctx, router, logger, options), nil
default:
return nil, E.New("unknown rule set type: ", options.Type)
}
}
var _ adapter.RuleSetStartContext = (*RuleSetStartContext)(nil)
type RuleSetStartContext struct {
access sync.Mutex
httpClientCache map[string]*http.Client
}
func NewRuleSetStartContext() *RuleSetStartContext {
return &RuleSetStartContext{
httpClientCache: make(map[string]*http.Client),
}
}
func (c *RuleSetStartContext) HTTPClient(detour string, dialer N.Dialer) *http.Client {
c.access.Lock()
defer c.access.Unlock()
if httpClient, loaded := c.httpClientCache[detour]; loaded {
return httpClient
}
httpClient := &http.Client{
Transport: &http.Transport{
ForceAttemptHTTP2: true,
TLSHandshakeTimeout: C.TCPTimeout,
DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
return dialer.DialContext(ctx, network, M.ParseSocksaddr(addr))
},
},
}
c.httpClientCache[detour] = httpClient
return httpClient
}
func (c *RuleSetStartContext) Close() {
c.access.Lock()
defer c.access.Unlock()
for _, client := range c.httpClientCache {
client.CloseIdleConnections()
}
}