package splithttp import ( "crypto/rand" "math/big" "net/http" "strings" "github.com/xtls/xray-core/common" "github.com/xtls/xray-core/transport/internet" ) func (c *Config) GetNormalizedPath() string { pathAndQuery := strings.SplitN(c.Path, "?", 2) path := pathAndQuery[0] if path == "" || path[0] != '/' { path = "/" + path } if path[len(path)-1] != '/' { path = path + "/" } return path } func (c *Config) GetNormalizedQuery() string { pathAndQuery := strings.SplitN(c.Path, "?", 2) query := "" if len(pathAndQuery) > 1 { query = pathAndQuery[1] } if query != "" { query += "&" } paddingLen := c.GetNormalizedXPaddingBytes().roll() if paddingLen > 0 { query += "x_padding=" + strings.Repeat("0", int(paddingLen)) } return query } func (c *Config) GetRequestHeader() http.Header { header := http.Header{} for k, v := range c.Header { header.Add(k, v) } return header } func (c *Config) WriteResponseHeader(writer http.ResponseWriter) { paddingLen := c.GetNormalizedXPaddingBytes().roll() if paddingLen > 0 { writer.Header().Set("X-Padding", strings.Repeat("0", int(paddingLen))) } } func (c *Config) GetNormalizedScMaxConcurrentPosts() RandRangeConfig { if c.ScMaxConcurrentPosts == nil || c.ScMaxConcurrentPosts.To == 0 { return RandRangeConfig{ From: 100, To: 100, } } return *c.ScMaxConcurrentPosts } func (c *Config) GetNormalizedScMaxEachPostBytes() RandRangeConfig { if c.ScMaxEachPostBytes == nil || c.ScMaxEachPostBytes.To == 0 { return RandRangeConfig{ From: 1000000, To: 1000000, } } return *c.ScMaxEachPostBytes } func (c *Config) GetNormalizedScMinPostsIntervalMs() RandRangeConfig { if c.ScMinPostsIntervalMs == nil || c.ScMinPostsIntervalMs.To == 0 { return RandRangeConfig{ From: 30, To: 30, } } return *c.ScMinPostsIntervalMs } func (c *Config) GetNormalizedXPaddingBytes() RandRangeConfig { if c.XPaddingBytes == nil || c.XPaddingBytes.To == 0 { return RandRangeConfig{ From: 100, To: 1000, } } return *c.XPaddingBytes } func init() { common.Must(internet.RegisterProtocolConfigCreator(protocolName, func() interface{} { return new(Config) })) } func (c RandRangeConfig) roll() int32 { if c.From == c.To { return c.From } bigInt, _ := rand.Int(rand.Reader, big.NewInt(int64(c.To-c.From))) return c.From + int32(bigInt.Int64()) }