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errors.go
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errors.go
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package cycletls
import (
"fmt"
"net"
"net/url"
"os"
"strconv"
"strings"
)
type errorMessage struct {
StatusCode int
debugger string
ErrorMsg string
Op string
}
func lastString(ss []string) string {
return ss[len(ss)-1]
}
func parseError(err error) (errormessage errorMessage) {
var msg string
var debugger string
var op string
httpError := string(err.Error())
status := lastString(strings.Split(httpError, "StatusCode:"))
StatusCode, _ := strconv.Atoi(status)
if StatusCode != 0 {
msg = fmt.Sprintf("Request error")
debugger = fmt.Sprintf("%#v\n", err)
errormessage = errorMessage{StatusCode: StatusCode, debugger: debugger, ErrorMsg: msg}
return
}
if uerr, ok := err.(*url.Error); ok {
if noerr, ok := uerr.Err.(*net.OpError); ok {
op = noerr.Op
if SyscallError, ok := noerr.Err.(*os.SyscallError); ok {
msg = fmt.Sprintf("Proxy returned a Syscall Error: %s", SyscallError)
debugger = fmt.Sprintf("%#v\n", SyscallError)
if noerr.Timeout() {
errormessage = errorMessage{StatusCode: 408, debugger: debugger, ErrorMsg: msg, Op: op}
}
errormessage = errorMessage{StatusCode: 401, debugger: debugger, ErrorMsg: msg, Op: op}
return
} else if AddrError, ok := noerr.Err.(*net.AddrError); ok {
msg = fmt.Sprintf("Proxy returned a Addr Error: %s", AddrError)
debugger = fmt.Sprintf("%#v\n", AddrError)
errormessage = errorMessage{StatusCode: 405, debugger: debugger, ErrorMsg: msg, Op: op}
return
} else if DNSError, ok := noerr.Err.(*net.DNSError); ok {
msg = fmt.Sprintf("Proxy returned a DNS Error: %s", DNSError)
debugger = fmt.Sprintf("%#v\n", DNSError)
errormessage = errorMessage{StatusCode: 421, debugger: debugger, ErrorMsg: msg, Op: op}
return
} else {
msg = fmt.Sprintf("Proxy returned a Error: %s", noerr)
debugger = fmt.Sprintf("%#v\n", noerr)
errormessage = errorMessage{StatusCode: 400, debugger: debugger, ErrorMsg: msg, Op: op}
return
}
}
if uerr.Timeout() {
msg = fmt.Sprintf("Proxy returned a Timeout Error: %s", uerr)
debugger = fmt.Sprintf("%#v\n", uerr)
errormessage = errorMessage{StatusCode: 408, debugger: debugger, ErrorMsg: msg, Op: op}
return
}
}
return
}
type errExtensionNotExist struct {
Context string
}
func (w *errExtensionNotExist) Error() string {
return fmt.Sprintf("Extension {{ %s }} is not Supported by CycleTLS please raise an issue", w.Context)
}
func raiseExtensionError(info string) *errExtensionNotExist {
return &errExtensionNotExist{
Context: info,
}
}