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Fixes #52
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1 @@ | ||
| 1.9.4 | ||
| 1.10.0 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "log" | ||
| "net" | ||
| "strconv" | ||
| "strings" | ||
|
|
||
| "github.com/boynux/squid-exporter/config" | ||
|
|
||
| proxyproto "github.com/pires/go-proxyproto" | ||
| ) | ||
|
|
||
| func createProxyHeader(cfg *config.Config) string { | ||
| la := strings.Split(cfg.ListenAddress, ":") | ||
| if len(la) < 2 { | ||
| log.Printf("Cannot parse listen address (%s). Failed to create proxy header\n", cfg.ListenAddress) | ||
| return "" | ||
| } | ||
|
|
||
| spt, err := strconv.Atoi(la[1]) | ||
| if err != nil { | ||
| log.Printf("Failed to create proxy header: %v\n", err.Error()) | ||
| return "" | ||
| } | ||
|
|
||
| sip, err := net.LookupIP(la[0]) | ||
| if err != nil { | ||
| log.Printf("Failed to create proxy header: %v\n", err.Error()) | ||
| return "" | ||
| } | ||
|
|
||
| dip, err := net.LookupIP(cfg.SquidHostname) | ||
| if err != nil { | ||
| log.Printf("Failed to create proxy header: %v\n", err.Error()) | ||
| return "" | ||
| } | ||
|
|
||
| ph := &proxyproto.Header{ | ||
| Version: 1, | ||
| Command: proxyproto.PROXY, | ||
| TransportProtocol: proxyproto.TCPv4, | ||
| SourceAddr: &net.TCPAddr{ | ||
| IP: sip[0], | ||
| Port: spt, | ||
| }, | ||
|
|
||
| DestinationAddr: &net.TCPAddr{ | ||
| IP: dip[0], | ||
| Port: cfg.SquidPort, | ||
| }, | ||
| } | ||
| phs, err := ph.Format() | ||
|
|
||
| if err != nil { | ||
| log.Printf("Failed to create proxy header: %v\n", err.Error()) | ||
| } | ||
|
|
||
| // proxyproto adds crlf to the end of the header string, but we will add this later | ||
| // we are triming it here. | ||
| return strings.TrimSuffix(string(phs), "\r\n") | ||
| } |
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