func (i *Installer) autodetectDSN(dsn *mysql.DSN) error {
params := []string{}
if i.flags.String["mysql-defaults-file"] != "" {
params = append(params, "--defaults-file="+i.flags.String["mysql-defaults-file"])
}
// --print-defaults needs to be last param
params = append(params, "--print-defaults")
cmd := exec.Command("mysql", params...)
byteOutput, err := cmd.Output()
if err != nil {
return err
}
output := string(byteOutput)
if i.flags.Bool["debug"] {
log.Println(output)
}
autoDSN := ParseMySQLDefaults(output)
if i.flags.Bool["debug"] {
log.Printf("autoDSN: %#v\n", autoDSN)
}
// Fill in the given DSN with auto-detected options.
if dsn.Username == "" {
dsn.Username = autoDSN.Username
}
if dsn.Password == "" {
dsn.Password = autoDSN.Password
}
if dsn.Hostname == "" {
dsn.Hostname = autoDSN.Hostname
}
if dsn.Port == "" {
dsn.Port = autoDSN.Port
}
if dsn.Socket == "" {
dsn.Socket = autoDSN.Socket
}
if dsn.Username == "" {
user, err := user.Current()
if err == nil {
dsn.Username = user.Username
}
}
if i.flags.Bool["debug"] {
log.Printf("dsn: %#v\n", dsn)
}
return nil
}
func ParseMyCnf(content string, dsn *mysql.DSN) error {
if content == "" {
return nil
}
userRe := regexp.MustCompile(`(?m)^user\s*=(\S+)`)
m := userRe.FindStringSubmatch(content)
if len(m) > 1 {
dsn.Username = m[1]
fmt.Printf("pt-agent MySQL user: %s\n", dsn.Username)
}
passRe := regexp.MustCompile(`(?m)^\s*pass\s*=(\S+)`)
m = passRe.FindStringSubmatch(content)
if len(m) > 1 {
dsn.Password = m[1]
fmt.Printf("pt-agent MySQL user pass: %s\n", dsn.Password)
}
return nil
}
func (i *Installer) getDSNFromUser(dsn *mysql.DSN) error {
// Ask for username
username, err := i.term.PromptString("MySQL username", dsn.Username)
if err != nil {
return err
}
dsn.Username = username
// Ask for password
var password string
if i.flags.Bool["plain-passwords"] {
password, err = i.term.PromptString("MySQL password", "")
} else {
password, err = gopass.GetPass("MySQL password: "******"MySQL host[:port] or socket file",
dsn.To(),
)
if err != nil {
return err
}
if filepath.IsAbs(hostname) {
dsn.Socket = hostname
dsn.Hostname = ""
} else {
f := strings.Split(hostname, ":")
dsn.Hostname = f[0]
if len(f) > 1 {
dsn.Port = f[1]
} else {
dsn.Port = "3306"
}
dsn.Socket = ""
}
return nil
}
func (i *Installer) connectMySQL(def *mysql.DSN, creating bool) (mysql.DSN, error) {
dsn := mysql.DSN{}
if creating {
fmt.Println("Specify a root/super MySQL user to create a user for the agent")
} else if def != nil {
fmt.Println("Verify the existing MySQL user to use for the agent")
dsn = *def
if dsn.Username == "" {
user, _ := user.Current()
if user != nil {
dsn.Username = user.Username
}
}
} else {
fmt.Println("Specify an existing MySQL user to use for the agent")
}
CONNECT_MYSQL:
for {
username, err := i.term.PromptStringRequired("MySQL username", dsn.Username)
if err != nil {
return dsn, err
}
dsn.Username = username
var password string
if creating {
password, err = gopass.GetPass("MySQL password: "******"MySQL password", dsn.Password)
}
if err != nil {
return dsn, err
}
dsn.Password = password
hostname, err := i.term.PromptStringRequired("MySQL host[:port] or socket file", dsn.To())
if err != nil {
return dsn, err
}
if filepath.IsAbs(hostname) {
dsn.Socket = hostname
dsn.Hostname = ""
} else {
f := strings.Split(hostname, ":")
dsn.Hostname = f[0]
if len(f) > 1 {
dsn.Port = f[1]
} else {
dsn.Port = "3306"
}
dsn.Socket = ""
}
if err := TestMySQLConnection(dsn); err != nil {
fmt.Printf("Error connecting to MySQL %s: %s\n", dsn, err)
again, err := i.term.PromptBool("Try again?", "Y")
if err != nil {
return dsn, err
}
if !again {
return dsn, fmt.Errorf("Failed to connect to MySQL")
}
continue CONNECT_MYSQL
}
fmt.Printf("MySQL connection OK\n")
break
}
return dsn, nil
}