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Error if no krb5.conf is found. #92

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Merged
merged 2 commits into from
Feb 13, 2023
Merged

Error if no krb5.conf is found. #92

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a2d9455
Error if no `krb5.conf` is found.
bodgit Feb 9, 2023
45db94c
Initialise multierror with env is not found
bodgit Feb 11, 2023
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41 changes: 28 additions & 13 deletions gss/gokrb5.go
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@ import (
"github.com/bodgit/tsig"
"github.com/bodgit/tsig/internal/util"
"github.com/go-logr/logr"
multierror "github.com/hashicorp/go-multierror"
"github.com/jcmturner/gokrb5/v8/client"
"github.com/jcmturner/gokrb5/v8/config"
"github.com/jcmturner/gokrb5/v8/credentials"
Expand Down Expand Up @@ -345,25 +346,39 @@ func loadCache() (*credentials.CCache, error) {
return cache, nil
}

func findFile(env string, try []string) (string, error) {
path, ok := os.LookupEnv(env)
if ok {
if _, err := os.Stat(path); err != nil {
return "", err
}
return path, nil
}

var errs error
for _, t := range try {
_, err := os.Stat(t)
if err != nil {
errs = multierror.Append(errs, err)
if os.IsNotExist(err) {
continue
}
return "", errs
}
return t, nil
}

return "", errs
}

func (c *Client) loadConfig() (*config.Config, error) {
if c.config != "" {
return config.NewFromString(c.config)
}

path := os.Getenv("KRB5_CONFIG")
_, err := os.Stat(path)
path, err := findFile("KRB5_CONFIG", []string{"/etc/krb5.conf"})
if err != nil {

// List of candidates to try
try := []string{"/etc/krb5.conf"}

for _, t := range try {
_, err := os.Stat(t)
if err == nil {
path = t
break
}
}
return nil, err
}

return config.Load(path)
Expand Down