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deadcode: NewUTF8, utf8.Execute, utf8.Exit

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This commit is contained in:
Tom Limoncelli 2024-03-03 10:43:47 -05:00
parent 951b47d583
commit 4d13c0251a
1 changed files with 26 additions and 33 deletions
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59
pkg/powershell/middleware/utf8.go
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@ -2,48 +2,41 @@
package middleware package middleware
import (
"encoding/base64"
"fmt"
"github.com/StackExchange/dnscontrol/v4/pkg/powershell/utils"
)
// utf8 implements a primitive middleware that encodes all outputs // utf8 implements a primitive middleware that encodes all outputs
// as base64 to prevent encoding issues between remote PowerShell // as base64 to prevent encoding issues between remote PowerShell
// shells and the receiver. Just setting $OutputEncoding does not // shells and the receiver. Just setting $OutputEncoding does not
// work reliably enough, sadly. // work reliably enough, sadly.
type utf8 struct { // type utf8 struct {
upstream Middleware // upstream Middleware
wrapper string // wrapper string
} // }
func NewUTF8(upstream Middleware) (Middleware, error) { // func NewUTF8(upstream Middleware) (Middleware, error) {
wrapper := "goUTF8" + utils.CreateRandomString(8) // wrapper := "goUTF8" + utils.CreateRandomString(8)
_, _, err := upstream.Execute(fmt.Sprintf(`function %s { process { if ($_) { [Convert]::ToBase64String([Text.Encoding]::UTF8.GetBytes($_)) } else { '' } } }`, wrapper)) // _, _, err := upstream.Execute(fmt.Sprintf(`function %s { process { if ($_) { [Convert]::ToBase64String([Text.Encoding]::UTF8.GetBytes($_)) } else { '' } } }`, wrapper))
return &utf8{upstream, wrapper}, err // return &utf8{upstream, wrapper}, err
} // }
func (u *utf8) Execute(cmd string) (string, string, error) { // func (u *utf8) Execute(cmd string) (string, string, error) {
// Out-String to concat all lines into a single line, // // Out-String to concat all lines into a single line,
// Write-Host to prevent line breaks at the "window width" // // Write-Host to prevent line breaks at the "window width"
cmd = fmt.Sprintf(`%s | Out-String | %s | Write-Host`, cmd, u.wrapper) // cmd = fmt.Sprintf(`%s | Out-String | %s | Write-Host`, cmd, u.wrapper)
stdout, stderr, err := u.upstream.Execute(cmd) // stdout, stderr, err := u.upstream.Execute(cmd)
if err != nil { // if err != nil {
return stdout, stderr, err // return stdout, stderr, err
} // }
decoded, err := base64.StdEncoding.DecodeString(stdout) // decoded, err := base64.StdEncoding.DecodeString(stdout)
if err != nil { // if err != nil {
return stdout, stderr, err // return stdout, stderr, err
} // }
return string(decoded), stderr, nil // return string(decoded), stderr, nil
} // }
func (u *utf8) Exit() { // func (u *utf8) Exit() {
u.upstream.Exit() // u.upstream.Exit()
} // }