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config.go
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config.go
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package main
import (
"bufio"
"fmt"
"github.com/Plan9-Archive/libauth"
"github.com/mischief/ndb"
"log"
"os"
"os/user"
sc "strconv"
"strings"
)
// Types of auth we can do add handling for new modes to atoam()
type AuthModes int
const (
Pass AuthModes = iota
Factotum
Unknown // Placeholder
)
//Configuration is a struct that contains all configuration fields
type Configuration struct {
AuthMode AuthModes
Username string
LoadBacklog bool
Messages int
PromptChar string
TimestampChar string
password string
}
// Config is the global configuration of discord-cli
var Config Configuration
var ConfigPath string = "/lib/disco.ndb"
// Convert a string such as "true" into true
func atob(s string) bool {
s = strings.ToLower(s)
if s == "true" {
return true
}
return false
}
// Convert a string such as "factotum" into factotum
func atoam(s string) AuthModes {
s = strings.ToLower(s)
if s == "pass" {
return Pass
}
if s == "factotum" {
return Factotum
}
return Unknown
}
//GetConfig retrieves configuration file from $home/lib/disco.ndb, if it doesn't exist it calls CreateConfig()
func GetConfig() {
//Get User
Start:
usr, err := user.Current()
if err != nil {
log.Fatal(err)
}
// Get File
file, err := os.Open(usr.HomeDir + ConfigPath)
if err != nil {
log.Println("Creating new config file")
CreateConfig()
goto Start
}
file.Close()
// Decode File
ndb, err := ndb.Open(usr.HomeDir + ConfigPath)
if err != nil {
log.Fatal("error: Could not ")
}
Config.Username = ndb.Search("username", "").Search("username")
Config.AuthMode = atoam(ndb.Search("auth", "").Search("auth"))
if Config.AuthMode == Pass {
Config.password = ndb.Search("username", "").Search("password")
}
Config.LoadBacklog = atob(ndb.Search("loadbacklog", "").Search("loadbacklog"))
Config.Messages, _ = sc.Atoi(ndb.Search("messages", "").Search("messages"))
Config.PromptChar = ndb.Search("promptchar", "").Search("promptchar")
Config.TimestampChar = ndb.Search("timestampchar", "").Search("timestampchar")
}
//CreateConfig creates folder inside $home and makes a new empty configuration file
func CreateConfig() {
// Get User
usr, err := user.Current()
if err != nil {
log.Fatal(err)
}
// Set Default values
fmt.Print("Input your email: ")
scan := bufio.NewScanner(os.Stdin)
scan.Scan()
raw := fmt.Sprintf("auth=pass\nloadbacklog=true\nmessages=10\npromptchar=→\ntimestampchar=>\n\nusername=%s password=\n", scan.Text())
// Create File
os.Mkdir(usr.HomeDir+"/lib", 0775)
file, err := os.Create(usr.HomeDir + ConfigPath)
if err != nil {
log.Fatalln(err)
}
file.Chmod(0600)
// PrintToFile
_, err = file.Write([]byte(raw))
if err != nil {
log.Fatalln(err)
}
file.Close()
}
// CheckState checks the current state for essential missing information, errors will fail the program
func CheckState() {
//Get User
usr, err := user.Current()
if err != nil {
log.Fatal(err)
}
if Config.Username == "" {
log.Fatalln("Error: No Username Specified, please edit " + usr.HomeDir + ConfigPath)
}
// Check and handle password loading
switch Config.AuthMode {
case Factotum:
// Acquire password from factotum
userPwd, err := libauth.Getuserpasswd("proto=pass service=discord user=%s server=discordapp.com", Config.Username)
if err != nil {
// Factotum didn't get anything
fmt.Fprintln(os.Stderr, "Warning: No success getting key from factotum, consider disabling it in ndb.")
fmt.Fprintln(os.Stderr, "Libauth gave: ", err)
} else {
Config.password = userPwd.Password
}
case Unknown:
log.Fatalln("Error: incorrect, or no, authmode specified via auth= config tuple. Consider: auth=(pass factotum).")
default:
// Password is already loaded in auth=pass mode
}
if Config.password == "" {
log.Fatalln("Error: No password loaded, cannot auth. Are you missing a factotum key or password= tuple?")
}
}