70 lines
1.3 KiB
Go
70 lines
1.3 KiB
Go
package openvpn
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import (
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"io"
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"os"
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"strings"
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)
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type AuthWriter interface {
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WriteAuthFile(user, password string) error
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}
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// WriteAuthFile writes the OpenVPN auth file to disk with the right permissions.
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func (c *configurator) WriteAuthFile(user, password string) error {
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file, err := os.Open(c.authFilePath)
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if err != nil && !os.IsNotExist(err) {
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return err
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}
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if os.IsNotExist(err) {
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file, err = os.OpenFile(c.authFilePath, os.O_WRONLY|os.O_CREATE, 0400)
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if err != nil {
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return err
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}
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_, err = file.WriteString(user + "\n" + password)
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if err != nil {
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_ = file.Close()
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return err
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}
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err = file.Chown(c.puid, c.pgid)
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if err != nil {
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_ = file.Close()
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return err
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}
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return file.Close()
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}
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data, err := io.ReadAll(file)
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if err != nil {
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_ = file.Close()
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return err
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}
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if err := file.Close(); err != nil {
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return err
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}
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lines := strings.Split(string(data), "\n")
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if len(lines) > 1 && lines[0] == user && lines[1] == password {
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return nil
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}
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c.logger.Info("username and password changed in " + c.authFilePath)
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file, err = os.OpenFile(c.authFilePath, os.O_TRUNC|os.O_WRONLY, 0400)
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if err != nil {
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return err
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}
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_, err = file.WriteString(user + "\n" + password)
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if err != nil {
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_ = file.Close()
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return err
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}
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err = file.Chown(c.puid, c.pgid)
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if err != nil {
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_ = file.Close()
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return err
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}
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return file.Close()
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}
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