apg-go/apg.go

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package main
import (
"fmt"
"log"
"os"
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)
// Constants
const DefaultPwLenght int = 20
const VersionString string = "0.2.8"
type Config struct {
minPassLen int
maxPassLen int
numOfPass int
useComplex bool
useLowerCase bool
useUpperCase bool
useNumber bool
useSpecial bool
humanReadable bool
excludeChars string
newStyleModes string
spellPassword bool
ShowHelp bool
showVersion bool
outputMode int
}
// Main function that generated the passwords and returns them
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func main() {
// Log config
log.SetFlags(log.Ltime | log.Ldate | log.Lshortfile)
// Read and parse flags
var config = parseFlags()
// Show version and exit
if config.showVersion {
_, _ = os.Stderr.WriteString("Advanced Password Generator Clone (apg.go) v" + VersionString + "\n")
_, _ = os.Stderr.WriteString("(C) 2021 by Winni Neessen\n")
os.Exit(0)
}
// Set PW length and available characterset
pwLength := getPwLengthFromParams(&config)
charRange := getCharRange(&config)
// Generate passwords
for i := 1; i <= config.numOfPass; i++ {
pwString, err := getRandChar(&charRange, pwLength)
if err != nil {
log.Fatalf("getRandChar returned an error: %q\n", err)
}
switch config.outputMode {
case 1:
{
spelledPw, err := spellPasswordString(pwString)
if err != nil {
log.Fatalf("spellPasswordString returned an error: %q\n", err.Error())
}
fmt.Printf("%v (%v)\n", pwString, spelledPw)
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break
}
default:
{
fmt.Println(pwString)
break
}
}
}
}