2022-05-23 01:05:50 +00:00
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package prox5
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2021-09-18 10:38:22 +00:00
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import (
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"fmt"
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"strings"
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"sync"
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)
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2022-06-26 02:11:01 +00:00
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func init() {
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debugMutex = &sync.RWMutex{}
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}
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var (
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useDebugChannel = false
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debugChan chan string
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debugMutex *sync.RWMutex
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)
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type DebugPrinter interface {
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Print(str string)
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Printf(format string, items ...any)
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}
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type basicPrinter struct{}
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func (b basicPrinter) Print(str string) {
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println("[prox5] " + str)
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}
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func (b basicPrinter) Printf(format string, items ...any) {
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println(fmt.Sprintf("prox5: "+format, items))
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}
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2022-05-23 01:20:40 +00:00
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2021-09-18 12:38:09 +00:00
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// DebugChannel will return a channel which will receive debug messages once debug is enabled.
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// This will alter the flow of debug messages, they will no longer print to console, they will be pushed into this channel.
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// Make sure you pull from the channel eventually to avoid build up of blocked goroutines.
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func (pe *ProxyEngine) DebugChannel() chan string {
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debugChan = make(chan string, 1000000)
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useDebugChannel = true
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return debugChan
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}
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// DebugEnabled returns the current state of our debug switch.
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func (pe *ProxyEngine) DebugEnabled() bool {
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return pe.swampopt.debug
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}
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// DisableDebugChannel redirects debug messages back to the console.
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// DisableProxyChannel does not disable debug, use DisableDebug().
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func (pe *ProxyEngine) DisableDebugChannel() {
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debugMutex.Lock()
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defer debugMutex.Unlock()
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useDebugChannel = false
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}
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// EnableDebug enables printing of verbose messages during operation
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func (pe *ProxyEngine) EnableDebug() {
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pe.swampopt.debug = true
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}
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// DisableDebug enables printing of verbose messages during operation.
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// WARNING: if you are using a DebugChannel, you must read all of the messages in the channel's cache or this will block.
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func (pe *ProxyEngine) DisableDebug() {
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pe.swampopt.debug = false
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}
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func simpleString(s string) *strings.Builder {
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buf := copABuffer.Get().(*strings.Builder)
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buf.WriteString(s)
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return buf
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}
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func (pe *ProxyEngine) dbgPrint(builder *strings.Builder) {
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defer discardBuffer(builder)
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if !pe.swampopt.debug {
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return
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}
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if !useDebugChannel {
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pe.Debug.Print(builder.String())
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return
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}
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select {
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case debugChan <- builder.String():
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return
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default:
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buf := copABuffer.Get().(*strings.Builder)
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buf.WriteString("overflow: ")
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buf.WriteString(builder.String())
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pe.Debug.Print(buf.String())
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discardBuffer(buf)
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}
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}
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2022-07-25 07:14:26 +00:00
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func (pe *ProxyEngine) msgUnableToReach(socksString string) {
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buf := copABuffer.Get().(*strings.Builder)
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buf.WriteString("unable to reach [redacted] with ")
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buf.WriteString(socksString)
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buf.WriteString(", cycling...")
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pe.dbgPrint(buf)
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}
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func (pe *ProxyEngine) msgUsingProxy(socksString string) {
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buf := copABuffer.Get().(*strings.Builder)
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buf.WriteString("MysteryDialer using socks: ")
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buf.WriteString(socksString)
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pe.dbgPrint(buf)
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}
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func (pe *ProxyEngine) msgFailedMiddleware(socksString string) {
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buf := copABuffer.Get().(*strings.Builder)
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buf.WriteString("failed middleware check, ")
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buf.WriteString(socksString)
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buf.WriteString(", cycling...")
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pe.dbgPrint(buf)
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}
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func (pe *ProxyEngine) msgTry(socksString string) {
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buf := copABuffer.Get().(*strings.Builder)
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buf.WriteString("try dial with: ")
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buf.WriteString(socksString)
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pe.dbgPrint(buf)
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}
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func (pe *ProxyEngine) msgCantGetLock(socksString string, putback bool) {
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buf := copABuffer.Get().(*strings.Builder)
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buf.WriteString("can't get lock for ")
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buf.WriteString(socksString)
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if putback {
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buf.WriteString(", putting back in queue")
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}
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pe.dbgPrint(buf)
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}
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func (pe *ProxyEngine) msgGotLock(socksString string) {
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buf := copABuffer.Get().(*strings.Builder)
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buf.WriteString("got lock for ")
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buf.WriteString(socksString)
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pe.dbgPrint(buf)
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}
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func (pe *ProxyEngine) msgChecked(sock *Proxy, success bool) {
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buf := copABuffer.Get().(*strings.Builder)
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if success {
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buf.WriteString("verified ")
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buf.WriteString(sock.Endpoint)
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buf.WriteString(" as SOCKS")
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buf.WriteString(getProtoStr(sock.proto))
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pe.dbgPrint(buf)
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return
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}
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buf.WriteString("failed to verify: ")
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buf.WriteString(sock.Endpoint)
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pe.dbgPrint(buf)
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}
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func (pe *ProxyEngine) msgBadProxRate(sock *Proxy) {
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buf := copABuffer.Get().(*strings.Builder)
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buf.WriteString("badProx ratelimited: ")
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buf.WriteString(sock.Endpoint)
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pe.dbgPrint(buf)
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}
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