131 lines
3.3 KiB
Go
131 lines
3.3 KiB
Go
/*
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* Copyright 2022 The Dragonfly 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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*/
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package source
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import (
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"crypto/tls"
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"fmt"
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"net"
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"net/http"
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"net/url"
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"os"
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"time"
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"gopkg.in/yaml.v3"
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)
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var ProxyEnv = "D7Y_SOURCE_PROXY"
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type transportOption struct {
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Proxy string `yaml:"proxy"`
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DialTimeout time.Duration `yaml:"dialTimeout"`
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KeepAlive time.Duration `yaml:"keepAlive"`
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MaxIdleConns int `yaml:"maxIdleConns"`
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IdleConnTimeout time.Duration `yaml:"idleConnTimeout"`
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ResponseHeaderTimeout time.Duration `yaml:"responseHeaderTimeout"`
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TLSHandshakeTimeout time.Duration `yaml:"tlsHandshakeTimeout"`
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ExpectContinueTimeout time.Duration `yaml:"expectContinueTimeout"`
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InsecureSkipVerify bool `yaml:"insecureSkipVerify"`
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}
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func UpdateTransportOption(transport *http.Transport, optionYaml []byte) error {
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opt := &transportOption{}
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err := yaml.Unmarshal(optionYaml, opt)
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if err != nil {
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return err
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}
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if len(opt.Proxy) > 0 {
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proxy, err := url.Parse(opt.Proxy)
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if err != nil {
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fmt.Printf("proxy parse error: %s\n", err)
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}
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transport.Proxy = http.ProxyURL(proxy)
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}
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if opt.IdleConnTimeout > 0 {
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transport.IdleConnTimeout = opt.IdleConnTimeout
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}
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if opt.DialTimeout > 0 && opt.KeepAlive > 0 {
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transport.DialContext = (&net.Dialer{
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Timeout: opt.DialTimeout,
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KeepAlive: opt.KeepAlive,
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DualStack: true,
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}).DialContext
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}
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if opt.MaxIdleConns > 0 {
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transport.MaxIdleConns = opt.MaxIdleConns
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}
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if opt.ExpectContinueTimeout > 0 {
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transport.ExpectContinueTimeout = opt.ExpectContinueTimeout
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}
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if opt.ResponseHeaderTimeout > 0 {
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transport.ResponseHeaderTimeout = opt.ResponseHeaderTimeout
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}
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if opt.TLSHandshakeTimeout > 0 {
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transport.TLSHandshakeTimeout = opt.TLSHandshakeTimeout
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}
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if opt.InsecureSkipVerify {
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transport.TLSClientConfig.InsecureSkipVerify = opt.InsecureSkipVerify
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}
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return nil
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}
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func DefaultTransport() *http.Transport {
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var (
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proxy *url.URL
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err error
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)
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if proxyEnv := os.Getenv(ProxyEnv); len(proxyEnv) > 0 {
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proxy, err = url.Parse(proxyEnv)
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if err != nil {
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fmt.Printf("proxy parse error: %s\n", err)
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}
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}
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transport := &http.Transport{
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DialContext: (&net.Dialer{
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Timeout: 30 * time.Second,
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KeepAlive: 30 * time.Second,
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DualStack: true,
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}).DialContext,
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IdleConnTimeout: 90 * time.Second,
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ResponseHeaderTimeout: 30 * time.Second,
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ExpectContinueTimeout: 10 * time.Second,
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TLSClientConfig: &tls.Config{
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InsecureSkipVerify: true,
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},
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}
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if proxy != nil {
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transport.Proxy = http.ProxyURL(proxy)
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}
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return transport
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}
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func ParseToHTTPClient(optionYaml []byte) (*http.Client, error) {
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transport := DefaultTransport()
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err := UpdateTransportOption(transport, optionYaml)
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if err != nil {
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return nil, err
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}
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return &http.Client{
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Transport: transport,
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}, nil
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}
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