109 lines
2.3 KiB
Go
109 lines
2.3 KiB
Go
package proxy
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import (
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"context"
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"fmt"
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"log/slog"
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"math/rand"
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"os"
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"sync"
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"time"
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"github.com/golang/glog"
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"github.com/timerzz/proxypool/pkg/getter"
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"github.com/timerzz/proxypool/pkg/proxy"
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"github.com/timerzz/proxypool/pkg/tool"
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)
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type ProxyPool struct {
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m sync.Mutex
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proxies proxy.ProxyList
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cfg *Option
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updated time.Time
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}
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func InitDefaultProxyPool() (*ProxyPool, error) {
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path := os.Getenv(ProxyConfigEnv)
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if path == "" {
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path = DefaultProxyConfigPath
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}
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cfg, err := LoadProxyConfig(path)
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if err != nil {
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return nil, fmt.Errorf("获取代理池配置失败：%v", err)
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}
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return NewProxyPool(cfg), nil
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}
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func NewProxyPool(cfg *Option) *ProxyPool {
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var p = &ProxyPool{}
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p.cfg = cfg
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p.Update()
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return p
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}
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func (p *ProxyPool) Status() (proxy.ProxyList, time.Time) {
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return p.proxies, p.updated
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}
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// Update 更新代理池
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func (p *ProxyPool) Update() {
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var list = make(proxy.ProxyList, 0, len(p.proxies))
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var getters = make([]getter.Getter, 0, len(p.cfg.Clash)+len(p.cfg.Subscribes))
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for _, url := range p.cfg.Subscribes {
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gtr, err := getter.NewSubscribe(tool.Options{"url": url})
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if err != nil {
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slog.Warn(fmt.Sprintf("创建Subscribe Getter失败：%v", err))
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continue
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}
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getters = append(getters, gtr)
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}
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for _, url := range p.cfg.Clash {
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gtr, err := getter.NewClashGetter(tool.Options{"url": url})
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if err != nil {
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slog.Warn(fmt.Sprintf("创建Clash Getter失败：%v", err))
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continue
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}
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getters = append(getters, gtr)
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}
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for _, gtr := range getters {
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list = list.UniqAppendProxyList(gtr.Get())
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}
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glog.Infof("代理源共 %d 个: %v", len(p.cfg.Subscribes), p.cfg.Subscribes)
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glog.Infof("获取代理共 %d 个", len(list))
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p.m.Lock()
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p.proxies = list
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p.m.Unlock()
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p.updated = time.Now()
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}
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// CronUpdate 定时更新
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func (p *ProxyPool) CronUpdate(ctx context.Context, interval time.Duration) {
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if interval == 0 {
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interval = time.Minute * 30
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}
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ticker := time.NewTicker(interval)
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defer ticker.Stop()
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for {
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select {
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case <-ctx.Done():
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return
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case <-ticker.C:
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p.Update()
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}
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}
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}
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// RandomIterator 获取随机代理的迭代器
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func (p *ProxyPool) RandomIterator() func() proxy.Proxy {
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return func() (proxy proxy.Proxy) {
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if len(p.proxies) == 0 {
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return nil
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}
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p.m.Lock()
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defer p.m.Unlock()
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curIndex := rand.Intn(len(p.proxies))
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return p.proxies[curIndex]
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}
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}
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