// hostCredentials returns credentials for the given Gerrit host. The
// function uses best effort to scan common locations where the
// credentials could exist.
func hostCredentials(run *runutil.Run, host string) (_ *credentials, e error) {
// Check the host URL is valid.
url, err := url.Parse(host)
if err != nil {
return nil, fmt.Errorf("Parse(%q) failed: %v", host, err)
}
if url.Host == "" {
return nil, fmt.Errorf("%q has no host", host)
}
// Look for the host credentials in the .netrc file.
netrcPath := filepath.Join(os.Getenv("HOME"), ".netrc")
file, err := run.Open(netrcPath)
if err != nil {
if !os.IsNotExist(err) {
return nil, err
}
} else {
defer collect.Error(func() error { return file.Close() }, &e)
credsMap, err := parseNetrcFile(file)
if err != nil {
return nil, err
}
creds, ok := credsMap[url.Host]
if ok {
return creds, nil
}
}
// Look for the host credentials in the git cookie file.
args := []string{"config", "--get", "http.cookiefile"}
var stdout, stderr bytes.Buffer
opts := run.Opts()
opts.Stdout = &stdout
opts.Stderr = &stderr
if err := run.CommandWithOpts(opts, "git", args...); err == nil {
cookieFilePath := strings.TrimSpace(stdout.String())
file, err := run.Open(cookieFilePath)
if err != nil {
if !os.IsNotExist(err) {
return nil, err
}
} else {
defer collect.Error(func() error { return file.Close() }, &e)
credsMap, err := parseGitCookieFile(file)
if err != nil {
return nil, err
}
creds, ok := credsMap[url.Host]
if ok {
return creds, nil
}
// Account for site-wide credentials. Namely, the git cookie
// file can contain credentials of the form ".<name>", which
// should match any host "*.<name>".
for host, creds := range credsMap {
if strings.HasPrefix(host, ".") && strings.HasSuffix(url.Host, host) {
return creds, nil
}
}
}
}
return nil, fmt.Errorf("cannot find credentials for %q", host)
}
