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Get buildTimestamp via a request to Unix socket (#22)

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Fixes https://github.com/gokrazy/breakglass/issues/21
This commit is contained in:
Tim H 2025-02-21 22:20:22 -08:00 committed by GitHub
parent 5f675f1989
commit 8965ef43ba
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GPG Key ID: B5690EEEBB952194
1 changed files with 21 additions and 6 deletions
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27
breakglass.go
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@ -5,6 +5,7 @@ package main
import (
"bufio"
"bytes"
"context"
"crypto/rand"
"crypto/rsa"
"crypto/x509"
@ -122,17 +123,31 @@ func buildTimestamp() (string, error) {
if err != nil {
return "", err
}
port, err := os.ReadFile("/etc/http-port.txt")
if err != nil {
return "", err
client := http.DefaultClient
var req *http.Request
if conn, err := net.Dial("unix", gokrazy.HTTPUnixSocket); err == nil {
// Use the Unix domain socket if available.
conn.Close()
client.Transport = &http.Transport{
DialContext: func(ctx context.Context, _, _ string) (net.Conn, error) {
dialer := net.Dialer{}
return dialer.DialContext(ctx, "unix", gokrazy.HTTPUnixSocket)
},
}
req, err = http.NewRequest("GET", "http://gokrazy:"+strings.TrimSpace(string(pw))+"@unix/", nil)
} else {
// Fallback to TCP.
port, err := os.ReadFile("/etc/http-port.txt")
if err != nil {
return "", err
}
req, err = http.NewRequest("GET", "http://gokrazy:"+strings.TrimSpace(string(pw))+"@localhost:"+strings.TrimSpace(string(port))+"/", nil)
}
req, err := http.NewRequest("GET", "http://gokrazy:"+strings.TrimSpace(string(pw))+"@localhost:"+strings.TrimSpace(string(port))+"/", nil)
if err != nil {
return "", err
}
req.Header.Set("Content-Type", "application/json")
resp, err := http.DefaultClient.Do(req)
resp, err := client.Do(req)
if err != nil {
return "", err
}