ginuerzh
102 lines
2.4 KiB
Go
102 lines
2.4 KiB
Go
package http
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import (
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"crypto"
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"crypto/tls"
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"crypto/x509"
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"net/http"
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"strings"
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"time"
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"github.com/go-gost/core/bypass"
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mdata "github.com/go-gost/core/metadata"
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mdutil "github.com/go-gost/core/metadata/util"
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"github.com/go-gost/x/registry"
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)
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const (
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defaultRealm = "gost"
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defaultProxyAgent = "gost/3.0"
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)
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type metadata struct {
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readTimeout time.Duration
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probeResistance *probeResistance
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enableUDP bool
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header http.Header
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hash string
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authBasicRealm string
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observePeriod time.Duration
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proxyAgent string
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sniffing bool
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sniffingTimeout time.Duration
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certificate *x509.Certificate
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privateKey crypto.PrivateKey
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alpn string
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mitmBypass bypass.Bypass
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}
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func (h *httpHandler) parseMetadata(md mdata.Metadata) error {
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h.md.readTimeout = mdutil.GetDuration(md, "readTimeout")
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if h.md.readTimeout <= 0 {
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h.md.readTimeout = 15 * time.Second
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}
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if m := mdutil.GetStringMapString(md, "http.header", "header"); len(m) > 0 {
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hd := http.Header{}
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for k, v := range m {
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hd.Add(k, v)
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}
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h.md.header = hd
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}
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if pr := mdutil.GetString(md, "probeResist", "probe_resist"); pr != "" {
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if ss := strings.SplitN(pr, ":", 2); len(ss) == 2 {
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h.md.probeResistance = &probeResistance{
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Type: ss[0],
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Value: ss[1],
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Knock: mdutil.GetString(md, "knock"),
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}
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}
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}
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h.md.enableUDP = mdutil.GetBool(md, "udp")
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h.md.hash = mdutil.GetString(md, "hash")
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h.md.authBasicRealm = mdutil.GetString(md, "authBasicRealm")
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h.md.observePeriod = mdutil.GetDuration(md, "observePeriod")
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h.md.proxyAgent = mdutil.GetString(md, "http.proxyAgent", "proxyAgent")
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if h.md.proxyAgent == "" {
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h.md.proxyAgent = defaultProxyAgent
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}
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h.md.sniffing = mdutil.GetBool(md, "sniffing")
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h.md.sniffingTimeout = mdutil.GetDuration(md, "sniffing.timeout")
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certFile := mdutil.GetString(md, "mitm.certFile", "mitm.caCertFile")
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keyFile := mdutil.GetString(md, "mitm.keyFile", "mitm.caKeyFile")
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if certFile != "" && keyFile != "" {
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tlsCert, err := tls.LoadX509KeyPair(certFile, keyFile)
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if err != nil {
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return err
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}
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h.md.certificate, err = x509.ParseCertificate(tlsCert.Certificate[0])
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if err != nil {
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return err
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}
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h.md.privateKey = tlsCert.PrivateKey
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}
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h.md.alpn = mdutil.GetString(md, "mitm.alpn")
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h.md.mitmBypass = registry.BypassRegistry().Get(mdutil.GetString(md, "mitm.bypass"))
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return nil
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}
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type probeResistance struct {
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Type string
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Value string
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Knock string
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}
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