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package main
import (
"flag"
"fmt"
"io"
"os"
"golang.org/x/term"
"roseh.moe/cmd/sym/internal/sym"
)
type options struct {
password string
force bool
stdin io.Reader
stdout io.Writer
}
func (o *options) dec(args ...string) error {
if o.stdin == nil {
o.stdin = os.Stdin
}
if o.stdout == nil {
o.stdout = os.Stdout
}
if len(args) == 0 && o.password == "" {
return fmt.Errorf("-p is required when reading from stdin")
}
var password string
if o.password != "" {
password = o.password
} else {
fmt.Fprint(os.Stderr, "Enter password: ")
pw, err := term.ReadPassword(int(os.Stdin.Fd()))
fmt.Fprintln(os.Stderr)
if err != nil {
return err
}
password = string(pw)
}
if len(args) == 0 {
return sym.Decrypt(o.stdout, o.stdin, password)
}
for _, fileName := range args {
if err := sym.DecryptFile(fileName, password, sym.Force(o.force)); err != nil {
return err
}
}
return nil
}
func main() {
o := new(options)
flag.StringVar(&o.password, "p", "", "use the specified password; if not provided, dec will prompt for a password")
flag.BoolVar(&o.force, "f", false, "overwrite output files even if they already exist")
flag.Parse()
if err := o.dec(flag.Args()...); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}
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