mirror of
https://github.com/wneessen/apg-go.git
synced 2024-11-14 01:42:55 +01:00
Winni Neessen
327dc6459a
- Better logging - Better error handling - Removed Makefile since github takes care of building/releasing
103 lines
3 KiB
Go
103 lines
3 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"log"
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"os"
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)
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// Constants
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const DefaultPwLenght int = 20
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const VersionString string = "0.2.6"
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const PwLowerCharsHuman string = "abcdefghjkmnpqrstuvwxyz"
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const PwUpperCharsHuman string = "ABCDEFGHJKMNPQRSTUVWXYZ"
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const PwLowerChars string = "abcdefghijklmnopqrstuvwxyz"
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const PwUpperChars string = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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const PwSpecialCharsHuman string = "\"#%*+-/:;=\\_|~"
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const PwSpecialChars string = "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~"
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const PwNumbersHuman string = "23456789"
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const PwNumbers string = "1234567890"
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type cliOpts struct {
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minPassLen int
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maxPassLen int
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numOfPass int
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useComplex bool
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useLowerCase bool
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useUpperCase bool
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useNumber bool
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useSpecial bool
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humanReadable bool
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excludeChars string
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newStyleModes string
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spellPassword bool
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showHelp bool
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showVersion bool
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outputMode int
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}
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var config cliOpts
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// Read flags
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func init() {
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// Bool flags
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flag.BoolVar(&config.useLowerCase, "L", true, "Use lower case characters in passwords")
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flag.BoolVar(&config.useUpperCase, "U", true, "Use upper case characters in passwords")
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flag.BoolVar(&config.useNumber, "N", true, "Use numbers in passwords")
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flag.BoolVar(&config.useSpecial, "S", false, "Use special characters in passwords")
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flag.BoolVar(&config.useComplex, "C", false, "Generate complex passwords (implies -L -U -N -S, disables -H)")
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flag.BoolVar(&config.spellPassword, "l", false, "Spell generated password")
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flag.BoolVar(&config.humanReadable, "H", false, "Generate human-readable passwords")
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flag.BoolVar(&config.showVersion, "v", false, "Show version")
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// Int flags
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flag.IntVar(&config.minPassLen, "m", DefaultPwLenght, "Minimum password length")
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flag.IntVar(&config.maxPassLen, "x", DefaultPwLenght, "Maxiumum password length")
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flag.IntVar(&config.numOfPass, "n", 1, "Number of passwords to generate")
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// String flags
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flag.StringVar(&config.excludeChars, "E", "", "Exclude list of characters from generated password")
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flag.StringVar(&config.newStyleModes, "M", "",
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"New style password parameters (higher priority than single parameters)")
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flag.Parse()
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if config.showVersion {
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_, _ = os.Stderr.WriteString("Winni's Advanced Password Generator Clone (apg.go) v" + VersionString + "\n")
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_, _ = os.Stderr.WriteString("(C) 2021 by Winni Neessen\n")
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os.Exit(0)
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}
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log.SetFlags(log.Ltime | log.Ldate | log.Lshortfile)
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}
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// Main function that generated the passwords and returns them
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func main() {
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parseParams()
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pwLength := getPwLengthFromParams()
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charRange := getCharRange()
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for i := 1; i <= config.numOfPass; i++ {
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pwString, err := getRandChar(&charRange, pwLength)
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if err != nil {
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log.Fatalf("getRandChar returned an error: %q\n", err)
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}
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switch config.outputMode {
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case 1:
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{
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spelledPw, err := spellPasswordString(pwString)
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if err != nil {
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log.Fatalf("spellPasswordString returned an error: %q\n", err.Error())
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}
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fmt.Printf("%v (%v)\n", pwString, spelledPw)
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break
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}
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default:
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{
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fmt.Println(pwString)
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break
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}
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}
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}
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}
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