142 lines
3.7 KiB
Go
142 lines
3.7 KiB
Go
// Copyright 2023 Woodpecker Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package plugin
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import (
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"context"
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"crypto/tls"
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"crypto/x509"
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"net"
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"net/http"
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"time"
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"github.com/rs/zerolog"
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"github.com/rs/zerolog/log"
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plugin_trace "github.com/thegeeklab/wp-plugin-go/v3/trace"
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"github.com/urfave/cli/v2"
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"golang.org/x/net/proxy"
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)
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const (
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NetDailerTimeout = 30 * time.Second
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HTTPTransportIdleTimeout = 90 * time.Second
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HTTPTransportTLSHandshakeTimeout = 10 * time.Second
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HTTPTransportMaxIdleConns = 100
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)
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// Network contains options for connecting to the network.
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type Network struct {
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// Context for making network requests.
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//
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// If `trace` logging is requested the context will use `httptrace` to
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// capture all network requests.
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//nolint:containedctx
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Context context.Context
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/// Whether SSL verification is skipped or not.
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InsecureSkipVerify bool
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// Client for making network requests.
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Client *http.Client
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}
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func networkFlags(category string) []cli.Flag {
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return []cli.Flag{
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&cli.BoolFlag{
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Name: "transport.insecure-skip-verify",
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Usage: "skip SSL verification",
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EnvVars: []string{"PLUGIN_INSECURE_SKIP_VERIFY"},
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Category: category,
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},
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&cli.StringFlag{
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Name: "transport.socks-proxy",
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Usage: "socks proxy address",
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EnvVars: []string{"SOCKS_PROXY"},
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Hidden: true,
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},
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&cli.BoolFlag{
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Name: "transport.socks-proxy-off",
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Usage: "socks proxy ignored",
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EnvVars: []string{"SOCKS_PROXY_OFF"},
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Hidden: true,
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},
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}
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}
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func NetworkFromContext(ctx *cli.Context) Network {
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var (
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skipVerify = ctx.Bool("transport.insecure-skip-verify")
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defaultContext = context.Background()
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socks = ctx.String("transport.socks-proxy")
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socksoff = ctx.Bool("transport.socks-proxy-off")
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)
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certs, err := x509.SystemCertPool()
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if err != nil {
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log.Error().Err(err).Msg("failed to find system CA certs")
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}
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tlsConfig := &tls.Config{
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RootCAs: certs,
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InsecureSkipVerify: skipVerify, //nolint:gosec
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}
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transport := &http.Transport{
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TLSClientConfig: tlsConfig,
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Proxy: http.ProxyFromEnvironment,
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MaxIdleConns: HTTPTransportMaxIdleConns,
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IdleConnTimeout: HTTPTransportIdleTimeout,
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TLSHandshakeTimeout: HTTPTransportTLSHandshakeTimeout,
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ExpectContinueTimeout: 1 * time.Second,
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}
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dialer := &net.Dialer{
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Timeout: NetDailerTimeout,
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KeepAlive: NetDailerTimeout,
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DualStack: true,
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}
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if len(socks) != 0 && !socksoff {
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proxyDialer, err := proxy.SOCKS5("tcp", socks, nil, dialer)
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if err != nil {
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log.Error().Err(err).Msg("failed to create socks proxy")
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}
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if contextDialer, ok := proxyDialer.(proxy.ContextDialer); ok {
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transport.DialContext = contextDialer.DialContext
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} else {
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transport.DialContext = func(_ context.Context, network, addr string) (net.Conn, error) {
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return proxyDialer.Dial(network, addr)
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}
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}
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} else {
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transport.DialContext = dialer.DialContext
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}
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if zerolog.GlobalLevel() == zerolog.TraceLevel {
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defaultContext = plugin_trace.HTTP(defaultContext)
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}
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client := &http.Client{
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Transport: transport,
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}
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return Network{
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Context: defaultContext,
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InsecureSkipVerify: skipVerify,
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Client: client,
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}
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}
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