Add new release binaries for 1.3.0

README.md

@@ -1,20 +1,22 @@
 # GoPass
 
-An easy to use command-line password generator that creates secure passwords (Version 1.1 adds proper cryptographic
-seeding of math/rand)
+An easy to use command-line password generator that creates secure passwords
 
 # Usage:
 
 `./gopass [number of characters]`<br>
 or <br>
-`./gopass [number of characters] "[excluded characters]"`
+`./gopass [number of characters] -r=[excluded characters] [-s to remove all symbols]`
 
 <hr>
 
 eg: `./gopass 32` <br>
 output: `E$bGOiiPASS*,ISl{!MJ&<\[COOL0eVw` <br>
-eg (with excluded characters): `./gopass 32 "$,!"` <br>
-output: `EYbGOiiPASS*2ISl{?MJ&<\[COOL0eVw` <- note the excluded characters are not present in the output
+eg: (with excluded characters): `./gopass 32 -r=$,!` <br>
+output: `EYbGOiiPASS*2ISl{?MJ&<\[COOL0eVw` <- note the excluded characters are not present in the output <br>
+eg: `./gopass 32 -s` <br>
+output: `LEYbGOiiPASS2ISlMJCOOL0eRt3KPOVw` <- note the symbols are not present in the output <br>
+eg: `./gopass 32 -r=$,! -s` the -r and -s flags can be combined <br>
 
 # How to install/use for Windows:
 

main.go

@@ -1,68 +1,94 @@
 // GoPass
 // Author: Maximilian Patterson
-// Version: 1.2.1
 package main
 
 import (
-	cryptorand "crypto/rand"
-	"encoding/binary"
+	"crypto/rand"
 	"fmt"
-	mathrand "math/rand"
+	"math/big"
 	"os"
 	"strconv"
+	"strings"
 )
 
 var allowedCharacters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890`~!@#$%^&*()_+[]\\{}|;':,./<>?")
 
-func main() {
-	// Take in all OS arg
-	args := os.Args[1:]
-	if len(args) < 1 {
-		println("No password length specified! (ex: ./gopass 16)")
-		return
+const (
+	Version = "1.3.0"
+	symbols = "`~!@#$%^&*()_+[]\\{}|;':,./<>?"
+)
+
+func matchArguments(args []string) string {
+	// If there are no arguments
+	if len(args) == 0 {
+		return "No password length specified! (ex: gopass 16)"
 	}
 
-	// Convert String arg to int
-	size, err := strconv.Atoi(args[0])
-	if err != nil {
-		println("First argument supplied must be an integer! (ex: 16)")
-		return
+	// First argument is special, must be an integer, -v, or -h
+	var size = 0 // Password length
+	err := error(nil)
+	if size, err = strconv.Atoi(args[0]); err == nil { // If first argument is an integer
+	} else if args[0] == "-v" {
+		return "GoPass version " + Version
+	} else if args[0] == "-h" {
+		return "GoPass - A simple password generator written in Go\n" +
+			"Usage: gopass [length] [disallowed characters] [optional remove symbols -s]\n" +
+			"     Example: gopass 16\n" +
+			"     Example: gopass 16 -r=abc123!@#\n" +
+			"     Example: gopass 16 -s\n" +
+			"\nFor help (this output): gopass -h\n" +
+			"For version: gopass -v\n"
 	}
 
-	// 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:]...)
-				}
-			}
+	for i := 1; i < len(args); i++ {
+		v := args[i]
+		if v == "-s" {
+			removeDisallowed([]rune(symbols))
+		} else if strings.HasPrefix(v, "-r=") { // If argument starts with -r=
+			// Remove all characters after the = until next whitespace
+			removeDisallowed([]rune(v[2:]))
+		} else {
+			return "Invalid argument (\"" + v + "\") supplied! (Type gopass -h for help)"
 		}
 	}
 
+	if size <= 0 {
+		return "No/invalid password length specified! (ex: gopass 16)"
+	} else {
+		return generatePassword(size)
+	}
+}
+
+// Remove all disallowed characters from the allowedCharacters slice
+func removeDisallowed(disallowed []rune) {
+	for _, r := range disallowed {
+		for i, v := range allowedCharacters {
+			if v == r {
+				allowedCharacters = append(allowedCharacters[:i], allowedCharacters[i+1:]...)
+			}
+		}
+	}
+}
+
+func generatePassword(size int) string {
 	// Make empty array of runes with size of size
 	pass := make([]rune, size)
 
-	// Seed rand with time
-	var b [8]byte
-	_, err = cryptorand.Read(b[:])
-	if err != nil {
-		println("Error securely seeding crypto/rand!")
-		return
-	}
-	mathrand.Seed(int64(binary.LittleEndian.Uint64(b[:])))
-
 	// Assign every slot of pass to a random allowedCharacter
 	for i := range pass {
 		// Generate a random int greater than 0 and not to exceed the length of allowedCharacters
-		pass[i] = allowedCharacters[mathrand.Intn(len(allowedCharacters))]
+		index, err := rand.Int(rand.Reader, big.NewInt(int64(len(allowedCharacters))))
+		if err != nil {
+			println("Error securely generating random character!")
+			return ""
+		}
+		pass[i] = allowedCharacters[index.Int64()]
 	}
 
-	// Print the password
-	fmt.Println(string(pass))
+	return string(pass)
+}
+
+func main() {
+	// Process arguments
+	fmt.Println(matchArguments(os.Args[1:]))
 }

makefile

@@ -0,0 +1,87 @@
+# The current version number of the program
+VERSION := 1.3.0
+
+# List of OS and architecture combinations to build
+BUILD_OS_ARCH := \
+	darwin/amd64 \
+	freebsd/386 \
+	freebsd/amd64 \
+	freebsd/arm \
+	linux/386 \
+	linux/amd64 \
+	linux/arm \
+	plan9/386 \
+	plan9/amd64 \
+	plan9/arm \
+	windows/386 \
+	windows/amd64 \
+	windows/arm
+
+# Build all targets
+all: $(BUILD_OS_ARCH)
+
+# Build targets in the form of `OS/ARCH`
+darwin/amd64:
+	GOOS=darwin \
+	GOARCH=amd64 \
+	go build -ldflags="-s -w" -o "gopass-darwin-amd64-$(VERSION)" main.go
+
+freebsd/386:
+	GOOS=freebsd \
+	GOARCH=386 \
+	go build -ldflags="-s -w" -o "gopass-freebsd-386-$(VERSION)" main.go
+
+freebsd/amd64:
+	GOOS=freebsd \
+	GOARCH=amd64 \
+	go build -ldflags="-s -w" -o "gopass-freebsd-amd64-$(VERSION)" main.go
+
+freebsd/arm:
+	GOOS=freebsd \
+	GOARCH=arm \
+	go build -ldflags="-s -w" -o "gopass-freebsd-arm-$(VERSION)" main.go
+
+linux/386:
+	GOOS=linux \
+	GOARCH=386 \
+	go build -ldflags="-s -w" -o "gopass-linux-386-$(VERSION)" main.go
+
+linux/amd64:
+	GOOS=linux \
+	GOARCH=amd64 \
+	go build -ldflags="-s -w" -o "gopass-linux-amd64-$(VERSION)" main.go
+
+linux/arm:
+	GOOS=linux \
+	GOARCH=arm \
+	go build -ldflags="-s -w" -o "gopass-linux-arm-$(VERSION)" main.go
+
+plan9/386:
+	GOOS=plan9 \
+	GOARCH=386 \
+	go build -ldflags="-s -w" -o "gopass-plan9-386-$(VERSION)" main.go
+
+plan9/amd64:
+	GOOS=plan9 \
+	GOARCH=amd64 \
+	go build -ldflags="-s -w" -o "gopass-plan9-amd64-$(VERSION)" main.go
+
+plan9/arm:
+	GOOS=plan9 \
+	GOARCH=arm \
+	go build -ldflags="-s -w" -o "gopass-plan9-arm-$(VERSION)" main.go
+
+windows/386:
+	GOOS=windows \
+	GOARCH=386 \
+	go build -ldflags="-s -w" -o "gopass-windows-386-$(VERSION)" main.go
+
+windows/amd64:
+	GOOS=windows \
+	GOARCH=amd64 \
+	go build -ldflags="-s -w" -o "gopass-windows-amd64-$(VERSION)" main.go
+
+windows/arm:
+	GOOS=windows \
+	GOARCH=arm \
+	go build -ldflags="-s -w" -o "gopass-windows-arm-$(VERSION)" main.go