mirror of
https://github.com/wneessen/apg-go.git
synced 2024-11-09 15:52:54 +01:00
v0.2.8: De-cluttered the config flags stuff
This commit is contained in:
parent
dd1a6b2b62
commit
1130a698f6
GPG key ID:
385AC9889632126E
5 changed files with 196 additions and 199 deletions
46
apg.go
46
apg.go
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@ -2,29 +2,59 @@ package main
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import (
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"fmt"
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"github.com/wneessen/apg.go/config"
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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 = "0.2.8"
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type Config 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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// Main function that generated the passwords and returns them
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func main() {
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// Log config
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log.SetFlags(log.Ltime | log.Ldate | log.Lshortfile)
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// Create config
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conf := config.NewConfig()
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conf.ParseParams()
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pwLength := conf.GetPwLengthFromParams()
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charRange := getCharRange(conf)
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// Read and parse flags
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var config = parseFlags()
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// Show version and exit
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if config.showVersion {
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_, _ = os.Stderr.WriteString("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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// Set PW length and available characterset
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pwLength := getPwLengthFromParams(&config)
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charRange := getCharRange(&config)
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// Generate passwords
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for i := 1; i <= conf.NumOfPass; i++ {
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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 conf.OutputMode {
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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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56
apg_test.go
56
apg_test.go
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@ -1,9 +1,15 @@
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package main
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import (
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"github.com/wneessen/apg.go/config"
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"testing"
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)
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import "testing"
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var config Config
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// Make sure the flags are initalized
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var _ = func() bool {
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testing.Init()
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config = parseFlags()
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return true
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}()
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// Test getRandNum with max 1000
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func TestGetRandNum(t *testing.T) {
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@ -114,16 +120,14 @@ func TestGetCharRange(t *testing.T) {
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{"special_only_human", specialHumanBytes, false, false, false, true, true},
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}
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conf := config.NewConfig()
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conf.ParseParams()
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for _, testCase := range testTable {
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t.Run(testCase.testName, func(t *testing.T) {
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conf.UseLowerCase = testCase.useLowerCase
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conf.UseUpperCase = testCase.useUpperCase
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conf.UseNumber = testCase.useNumber
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conf.UseSpecial = testCase.useSpecial
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conf.HumanReadable = testCase.humanReadable
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charRange := getCharRange(conf)
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config.useLowerCase = testCase.useLowerCase
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config.useUpperCase = testCase.useUpperCase
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config.useNumber = testCase.useNumber
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config.useSpecial = testCase.useSpecial
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config.humanReadable = testCase.humanReadable
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charRange := getCharRange(&config)
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for _, curChar := range charRange {
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searchAllowedBytes := containsByte(testCase.allowedBytes, int(curChar), t)
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if !searchAllowedBytes {
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@ -147,8 +151,6 @@ func TestConvert(t *testing.T) {
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{"convert_0_to_ZERO", '0', "ZERO", false},
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{"convert_/_to_SLASH", '/', "SLASH", false},
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}
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conf := config.NewConfig()
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conf.ParseParams()
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for _, testCase := range testTable {
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t.Run(testCase.testName, func(t *testing.T) {
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@ -171,12 +173,12 @@ func TestConvert(t *testing.T) {
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}
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t.Run("all_chars_must_return_a_conversion_string", func(t *testing.T) {
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conf.UseUpperCase = true
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conf.UseLowerCase = true
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conf.UseNumber = true
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conf.UseSpecial = true
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conf.HumanReadable = false
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charRange := getCharRange(conf)
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config.useUpperCase = true
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config.useLowerCase = true
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config.useNumber = true
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config.useSpecial = true
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config.humanReadable = false
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charRange := getCharRange(&config)
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for _, curChar := range charRange {
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_, err := convertCharToName(byte(curChar))
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if err != nil {
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@ -215,15 +217,13 @@ func BenchmarkGetRandChar(b *testing.B) {
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// Benchmark: Random char generation
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func BenchmarkConvertChar(b *testing.B) {
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conf := config.NewConfig()
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conf.ParseParams()
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conf.UseUpperCase = true
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conf.UseLowerCase = true
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conf.UseNumber = true
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conf.UseSpecial = true
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conf.HumanReadable = false
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charRange := getCharRange(conf)
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config.useUpperCase = true
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config.useLowerCase = true
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config.useNumber = true
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config.useSpecial = true
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config.humanReadable = false
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charRange := getCharRange(&config)
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for i := 0; i < b.N; i++ {
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charToConv, _ := getRandChar(&charRange, 1)
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charBytes := []byte(charToConv)
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17
chars.go
17
chars.go
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@ -1,7 +1,6 @@
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package main
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import (
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"github.com/wneessen/apg.go/config"
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"regexp"
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)
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@ -15,12 +14,12 @@ const PwNumbersHuman string = "23456789"
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const PwNumbers string = "1234567890"
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// Provide the range of available characters based on provided parameters
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func getCharRange(config *config.Config) string {
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func getCharRange(config *Config) string {
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pwUpperChars := PwUpperChars
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pwLowerChars := PwLowerChars
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pwNumbers := PwNumbers
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pwSpecialChars := PwSpecialChars
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if config.HumanReadable {
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if config.humanReadable {
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pwUpperChars = PwUpperCharsHuman
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pwLowerChars = PwLowerCharsHuman
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pwNumbers = PwNumbersHuman
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@ -28,20 +27,20 @@ func getCharRange(config *config.Config) string {
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}
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var charRange string
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if config.UseLowerCase {
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if config.useLowerCase {
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charRange = charRange + pwLowerChars
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}
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if config.UseUpperCase {
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if config.useUpperCase {
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charRange = charRange + pwUpperChars
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}
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if config.UseNumber {
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if config.useNumber {
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charRange = charRange + pwNumbers
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}
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if config.UseSpecial {
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if config.useSpecial {
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charRange = charRange + pwSpecialChars
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}
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if config.ExcludeChars != "" {
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regExp := regexp.MustCompile("[" + regexp.QuoteMeta(config.ExcludeChars) + "]")
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if config.excludeChars != "" {
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regExp := regexp.MustCompile("[" + regexp.QuoteMeta(config.excludeChars) + "]")
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charRange = regExp.ReplaceAllLiteralString(charRange, "")
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}
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122
config.go
Normal file
122
config.go
Normal file
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@ -0,0 +1,122 @@
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package main
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import (
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"flag"
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"log"
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)
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// Parse the CLI flags
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func parseFlags() Config {
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var config Config
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// Read and set all 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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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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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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// Parse additional parameters
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parseParams(&config)
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return config
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}
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// Parse the parameters and set the according config flags
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func parseParams(config *Config) {
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parseNewStyleParams(config)
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// Complex overrides everything
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if config.useComplex {
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config.useUpperCase = true
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config.useLowerCase = true
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config.useSpecial = true
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config.useNumber = true
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config.humanReadable = false
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}
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if config.useUpperCase == false &&
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config.useLowerCase == false &&
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config.useNumber == false &&
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config.useSpecial == false {
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log.Fatalf("No password mode set. Cannot generate password from empty character set.")
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}
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// Set output mode
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if config.spellPassword {
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config.outputMode = 1
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}
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}
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// Get the password length from the given cli flags
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func getPwLengthFromParams(config *Config) int {
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pwLength := config.minPassLen
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if pwLength < config.minPassLen {
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pwLength = config.minPassLen
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}
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if pwLength > config.maxPassLen {
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pwLength = config.maxPassLen
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}
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return pwLength
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}
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// Parse the new style parameters
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func parseNewStyleParams(config *Config) {
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if config.newStyleModes == "" {
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return
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}
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for _, curParam := range config.newStyleModes {
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switch curParam {
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case 'S':
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config.useSpecial = true
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break
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case 's':
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config.useSpecial = false
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break
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case 'N':
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config.useNumber = true
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break
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case 'n':
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config.useNumber = false
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break
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case 'L':
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config.useLowerCase = true
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break
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case 'l':
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config.useLowerCase = false
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break
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case 'U':
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config.useUpperCase = true
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break
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case 'u':
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config.useUpperCase = false
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break
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case 'H':
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config.humanReadable = true
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break
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case 'h':
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config.humanReadable = false
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break
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case 'C':
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config.useComplex = true
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break
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case 'c':
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config.useComplex = false
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break
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default:
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log.Fatalf("Unknown password style parameter: %q\n", string(curParam))
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}
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}
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}
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154
config/config.go
154
config/config.go
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@ -1,154 +0,0 @@
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package config
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import (
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"flag"
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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 = "0.2.7"
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type Config 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 Config
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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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}
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func NewConfig() *Config {
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flag.Parse()
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if config.showVersion {
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_, _ = os.Stderr.WriteString("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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return &config
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}
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// Parse the parameters and set the according config flags
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func (config *Config) ParseParams() {
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config.parseNewStyleParams()
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// Complex overrides everything
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if config.UseComplex {
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config.UseUpperCase = true
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config.UseLowerCase = true
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config.UseSpecial = true
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config.UseNumber = true
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config.HumanReadable = false
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}
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if config.UseUpperCase == false &&
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config.UseLowerCase == false &&
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config.UseNumber == false &&
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config.UseSpecial == false {
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log.Fatalf("No password mode set. Cannot generate password from empty character set.")
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}
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// Set output mode
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if config.SpellPassword {
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config.OutputMode = 1
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}
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}
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// Get the password length from the given cli flags
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func (config *Config) GetPwLengthFromParams() int {
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pwLength := config.MinPassLen
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if pwLength < config.MinPassLen {
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pwLength = config.MinPassLen
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}
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if pwLength > config.MaxPassLen {
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pwLength = config.MaxPassLen
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}
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return pwLength
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}
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// Parse the new style parameters
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func (config *Config) parseNewStyleParams() {
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if config.NewStyleModes == "" {
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return
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}
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for _, curParam := range config.NewStyleModes {
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switch curParam {
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case 'S':
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config.UseSpecial = true
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break
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case 's':
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config.UseSpecial = false
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break
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case 'N':
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config.UseNumber = true
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break
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case 'n':
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config.UseNumber = false
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break
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case 'L':
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config.UseLowerCase = true
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break
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case 'l':
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config.UseLowerCase = false
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break
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case 'U':
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config.UseUpperCase = true
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break
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case 'u':
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config.UseUpperCase = false
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break
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case 'H':
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config.HumanReadable = true
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break
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case 'h':
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config.HumanReadable = false
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break
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case 'C':
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config.UseComplex = true
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break
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case 'c':
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config.UseComplex = false
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break
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default:
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log.Fatalf("Unknown password style parameter: %q\n", string(curParam))
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}
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}
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}
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