113 lines
2.3 KiB
Go
113 lines
2.3 KiB
Go
package hop
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"encoding/json"
|
|
"net/http"
|
|
|
|
"github.com/go-gost/core/chain"
|
|
"github.com/go-gost/core/hop"
|
|
"github.com/go-gost/core/logger"
|
|
"github.com/go-gost/x/config"
|
|
node_parser "github.com/go-gost/x/config/parsing/node"
|
|
ctxvalue "github.com/go-gost/x/ctx"
|
|
"github.com/go-gost/x/internal/plugin"
|
|
)
|
|
|
|
type httpPluginRequest struct {
|
|
Network string `json:"network"`
|
|
Addr string `json:"addr"`
|
|
Host string `json:"host"`
|
|
Path string `json:"path"`
|
|
Client string `json:"client"`
|
|
Src string `json:"src"`
|
|
}
|
|
|
|
type httpPlugin struct {
|
|
name string
|
|
url string
|
|
client *http.Client
|
|
header http.Header
|
|
log logger.Logger
|
|
}
|
|
|
|
// NewHTTPPlugin creates an Hop plugin based on HTTP.
|
|
func NewHTTPPlugin(name string, url string, opts ...plugin.Option) hop.Hop {
|
|
var options plugin.Options
|
|
for _, opt := range opts {
|
|
opt(&options)
|
|
}
|
|
|
|
return &httpPlugin{
|
|
name: name,
|
|
url: url,
|
|
client: plugin.NewHTTPClient(&options),
|
|
header: options.Header,
|
|
log: logger.Default().WithFields(map[string]any{
|
|
"kind": "hop",
|
|
"hop": name,
|
|
}),
|
|
}
|
|
}
|
|
|
|
func (p *httpPlugin) Select(ctx context.Context, opts ...hop.SelectOption) *chain.Node {
|
|
if p.client == nil {
|
|
return nil
|
|
}
|
|
|
|
var options hop.SelectOptions
|
|
for _, opt := range opts {
|
|
opt(&options)
|
|
}
|
|
|
|
rb := httpPluginRequest{
|
|
Network: options.Network,
|
|
Addr: options.Addr,
|
|
Host: options.Host,
|
|
Path: options.Path,
|
|
Client: string(ctxvalue.ClientIDFromContext(ctx)),
|
|
Src: string(ctxvalue.ClientAddrFromContext(ctx)),
|
|
}
|
|
v, err := json.Marshal(&rb)
|
|
if err != nil {
|
|
p.log.Error(err)
|
|
return nil
|
|
}
|
|
|
|
req, err := http.NewRequestWithContext(ctx, http.MethodPost, p.url, bytes.NewReader(v))
|
|
if err != nil {
|
|
p.log.Error(err)
|
|
return nil
|
|
}
|
|
|
|
if p.header != nil {
|
|
req.Header = p.header.Clone()
|
|
}
|
|
req.Header.Set("Content-Type", "application/json")
|
|
resp, err := p.client.Do(req)
|
|
if err != nil {
|
|
p.log.Error(err)
|
|
return nil
|
|
}
|
|
defer resp.Body.Close()
|
|
|
|
if resp.StatusCode != http.StatusOK {
|
|
p.log.Error(resp.Status)
|
|
return nil
|
|
}
|
|
|
|
var cfg config.NodeConfig
|
|
if err := json.NewDecoder(resp.Body).Decode(&cfg); err != nil {
|
|
p.log.Error(err)
|
|
return nil
|
|
}
|
|
|
|
node, err := node_parser.ParseNode(p.name, &cfg, logger.Default())
|
|
if err != nil {
|
|
p.log.Error(err)
|
|
return nil
|
|
}
|
|
return node
|
|
}
|