3x-ui/subproject/Xray-core-main/features/routing/dns/context.go
test999 367152556a **Fixes & Changes:**
1. **Fixed XPadding Placement Dropdown**:
   - Added the missing `cookie` and `query` options to `xPaddingPlacement` (`stream_xhttp.html`).
   - *Why:* Previously, users wanting `cookie` obfuscation were forced to use the `header` placement string. This caused Xray-core to blindly intercept the entire monolithic HTTP Cookie header, failing internal padding-length validations and causing the inbound to silently drop the connection.
2. **Fixed Uplink Data Placement Validation**:
   - Replaced the unsupported `query` option with `cookie` in `uplinkDataPlacement`.
   - *Why:* Xray-core's `transport_internet.go` explicitly forbids `query` as an uplink placement option. Selecting it from the UI previously sent a payload that would cause Xray-core to instantly throw an `unsupported uplink data placement: query` panic. Adding `cookie` perfectly aligns the UI with Xray-core restrictions.
### Related Issues
- Resolves #3992
2026-04-06 15:00:43 +03:00

56 lines
1.3 KiB
Go

package dns
import (
"context"
"github.com/xtls/xray-core/common/errors"
"github.com/xtls/xray-core/common/net"
"github.com/xtls/xray-core/features/dns"
"github.com/xtls/xray-core/features/routing"
)
// ResolvableContext is an implementation of routing.Context, with domain resolving capability.
type ResolvableContext struct {
routing.Context
dnsClient dns.Client
cacheIPs []net.IP
hasError bool
}
// GetTargetIPs overrides original routing.Context's implementation.
func (ctx *ResolvableContext) GetTargetIPs() []net.IP {
if len(ctx.cacheIPs) > 0 {
return ctx.cacheIPs
}
if ctx.hasError {
return nil
}
if domain := ctx.GetTargetDomain(); len(domain) != 0 {
ips, _, err := ctx.dnsClient.LookupIP(domain, dns.IPOption{
IPv4Enable: true,
IPv6Enable: true,
FakeEnable: false,
})
if err == nil {
ctx.cacheIPs = ips
return ips
}
errors.LogInfoInner(context.Background(), err, "resolve ip for ", domain)
}
if ips := ctx.Context.GetTargetIPs(); len(ips) != 0 {
ctx.cacheIPs = ips
return ips
}
ctx.hasError = true
return nil
}
// ContextWithDNSClient creates a new routing context with domain resolving capability.
// Resolved domain IPs can be retrieved by GetTargetIPs().
func ContextWithDNSClient(ctx routing.Context, client dns.Client) routing.Context {
return &ResolvableContext{Context: ctx, dnsClient: client}
}