updated parser

main.go

@@ -29,6 +29,7 @@ func main() {
 	// Fetch user input
 	fmt.Print("Enter your password: ")
 	fmt.Scanf("%s", &input)
+	fmt.Println(input)
 
 	// Check users password
 	message, err := password.Check(input, commonWords, commonPasswords)

password/password.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"regexp"
 	"strings"
+	"unicode"
 )
 
 // Check checks if password is valid, and returns message, and if its a strong password
@@ -23,30 +24,30 @@ func Check(input string, wordList, passwordList []string) (string, error) {
 
 	// Check if password contains a number and a special character and a capital letter
 	for _, letter := range input {
-		// Check ASCII code to see if has special character
-		if letter >= 33 && letter <= 47 || letter >= 58 && letter <= 62 {
+		// Check if letter is a symbol
+		if !(unicode.IsLetter(letter) || unicode.IsDigit(letter) || unicode.IsSpace(letter)) {
 			hasSpecialCharacter = true
 		}
 
-		// Check ASCII code to see if password contains a number
-		if letter >= 48 && letter <= 57 {
+		// Check if letter is a number
+		if unicode.IsDigit(letter) {
 			hasNumber = true
 		}
 
-		// Check ASCII code to see if password contains a capital letter
-		if letter >= 65 && letter <= 90 {
+		// Check if letter is a capital letter
+		if unicode.IsUpper(letter) {
 			hasCapitalLetter = true
 		}
 
-		// Check ASCII code to see if there is a space
-		if letter == 32 {
-			return "Weak password", fmt.Errorf("password cannot contain a space")
+		// Check for spaces
+		if unicode.IsSpace(letter) {
+			return "Invalid password", fmt.Errorf("password cannot contain spaces")
 		}
 	}
 
 	// Check if password is in common passwords
 	for _, entry := range passwordList {
-		if strings.Contains(entry, input) {
+		if strings.Contains(strings.ToLower(entry), strings.ToLower(input)) {
 			return "Weak password", fmt.Errorf("password found inside common passwords")
 		}
 	}
@@ -57,13 +58,13 @@ func Check(input string, wordList, passwordList []string) (string, error) {
 	strippedPassword := re.ReplaceAllString(input, "")
 	// Iterate through common words and see if input contains any
 	for _, word := range wordList {
-		if strings.Contains(word, strippedPassword) {
+		if strings.Contains(strings.ToLower(word), strings.ToLower(strippedPassword)) {
 			return "Weak password", fmt.Errorf("password contains common word from wordlist")
 		}
 	}
 
 	if !(hasNumber && hasSpecialCharacter && isTwelveCharacters && hasCapitalLetter) {
-		return "Weak password", nil
+		return "Weak password", fmt.Errorf("Has number: %v, Has special character: %v, Has 12+ characters: %v, Has capital letter: %v", hasNumber, hasSpecialCharacter, isTwelveCharacters, hasCapitalLetter)
 	}
 
 	return "Strong password", nil