113 lines
2.8 KiB
Go
113 lines
2.8 KiB
Go
package pxndscvm
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import (
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"sync"
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"time"
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rl "github.com/yunginnanet/Rate5"
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)
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// Swamp represents a proxy pool
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type Swamp struct {
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// Socks5 is a constant stream of verified Socks5 proxies
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Socks5 chan Proxy
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// Socks4 is a constant stream of verified Socks4 proxies
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Socks4 chan Proxy
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// Socks4a is a constant stream of verified Socks5 proxies
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Socks4a chan Proxy
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// Stats holds the Statistics for our swamp
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Stats *Statistics
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// Pending is a constant stream of proxy strings to be verified
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Pending chan string
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// Birthday represents the time we started checking proxies with this pool
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Birthday time.Time
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scvm []string
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swampopt *SwampOptions
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started bool
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mu *sync.RWMutex
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}
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var (
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defaultStaleTime = time.Duration(1) * time.Hour
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defWorkers = 100
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)
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func defOpt() *SwampOptions {
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return &SwampOptions{
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UserAgents: DefaultUserAgents,
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Stale: defaultStaleTime,
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MaxWorkers: defWorkers,
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Debug: false,
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}
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}
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// SwampOptions holds our configuration for Swamp instances
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type SwampOptions struct {
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// UserAgents contains a list of UserAgents to be randomly drawn from for proxied requests, this should be supplied via SetUserAgents
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UserAgents []string
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// Stale is the amount of time since verification that qualifies a proxy going stale.
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// if a stale proxy is drawn during the use of our getter functions, it will be skipped.
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Stale time.Duration
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// Debug when enabled will print results as they come in
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Debug bool
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// MaxWorkers determines the maximum amount of workers used for checking proxies
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MaxWorkers int
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}
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var (
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useProx *rl.Limiter
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badProx *rl.Limiter
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myipsites = []string{"https://tcp.ac/ip", "https://vx-underground.org/ip", "https://wtfismyip.com/text"}
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)
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// Proxy represents an individual proxy
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type Proxy struct {
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// Endpoint is the address:port of the proxy that we connect to
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Endpoint string
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// ProxiedIP is the address that we end up having when making proxied requests through this proxy
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ProxiedIP string
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// Proto is the version/Protocol (currently SOCKS* only) of the proxy
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Proto string
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// Verified is the time this proxy was last verified working
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Verified time.Time
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}
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// UniqueKey is an implementation of the Identity interface from Rate5
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func (p Proxy) UniqueKey() string {
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return p.Endpoint
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}
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func init() {
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useProx = rl.NewLimiter(60, 2)
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badProx = rl.NewStrictLimiter(30, 50)
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}
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// NewDefaultSwamp returns a Swamp with basic options.
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func NewDefaultSwamp() *Swamp {
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s := &Swamp{
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Socks5: make(chan Proxy, 1000),
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Socks4: make(chan Proxy, 1000),
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Socks4a: make(chan Proxy, 1000),
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Pending: make(chan string, 500),
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Stats: &Statistics{
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Valid4: 0,
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Valid4a: 0,
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Valid5: 0,
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Dispensed: 0,
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mu: &sync.Mutex{},
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},
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Birthday: time.Now(),
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swampopt: defOpt(),
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mu: &sync.RWMutex{},
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}
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return s
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}
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