New version update that supports disallowed characters, cleaned up comments

This commit is contained in:
Maximilian 2022-12-19 17:41:54 -06:00
parent cebcbc2823
commit b81783b470

33
main.go
View File

@ -1,6 +1,6 @@
// GoPass // GoPass
// Author: Maximilian Patterson // Author: Maximilian Patterson
// Version: 1.2 // Version: 1.2.0
package main package main
import ( import (
@ -12,19 +12,35 @@ import (
"strconv" "strconv"
) )
var runes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890`~!@#$%^&*()_+[]\\{}|;':,./<>?") var allowedCharacters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890`~!@#$%^&*()_+[]\\{}|;':,./<>?")
func main() { func main() {
// Take OS arg (only accepts one arg) handle errors // Take in all OS arg
args := os.Args[1:] args := os.Args[1:]
if len(args) != 1 { if len(args) < 1 {
panic("No password length specified! (ex: ./gopass 16)") panic("No password length specified! (ex: ./gopass 16)")
} }
// Convert String arg to int // Convert String arg to int
size, err := strconv.Atoi(args[0]) size, err := strconv.Atoi(args[0])
if err != nil { if err != nil {
panic("Argument supplied must be an integer! (ex: 16)") panic("First argument supplied must be an integer! (ex: 16)")
}
// Grab second argument (if it exists) and use it as a disallowed character(s)
var disallowed []rune
if len(args) == 2 {
// Break apart the string into a slice of runes
disallowed = []rune(args[1])
// Remove all disallowed characters from the allowedCharacters slice
for _, r := range disallowed {
for i, v := range allowedCharacters {
if v == r {
allowedCharacters = append(allowedCharacters[:i], allowedCharacters[i+1:]...)
}
}
}
} }
// Make empty array of runes with size of size // Make empty array of runes with size of size
@ -38,11 +54,12 @@ func main() {
} }
mathrand.Seed(int64(binary.LittleEndian.Uint64(b[:]))) mathrand.Seed(int64(binary.LittleEndian.Uint64(b[:])))
// Assign every slot of pass to a random rune (generate rand int of length runes to select) // Assign every slot of pass to a random allowedCharacter
for i := range pass { for i := range pass {
pass[i] = runes[mathrand.Intn(len(runes))] // Generate a random int greater than 0 and not to exceed the length of allowedCharacters
pass[i] = allowedCharacters[mathrand.Intn(len(allowedCharacters))]
} }
// Print the pass :D // Print the password
fmt.Println(string(pass)) fmt.Println(string(pass))
} }