138 lines
3.3 KiB
Go
138 lines
3.3 KiB
Go
package main
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import (
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"bufio"
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"fmt"
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"os"
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"mcquay.me/pm/keyring"
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)
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const usage = `pm: simple, cross-platform system package manager
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subcommands:
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environ (env) -- print environment information
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keyring (key) -- interact with pm's OpenPGP keyring
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`
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const keyUsage = `pm keyring: interact with pm's OpenPGP keyring
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subcommands:
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create (c) -- create a fresh keypair
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export (e) -- export a public key to stdout
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import (i) -- import a public key from stdin
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list (ls) -- list configured key info
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remove (rm) -- remove a key from the keyring
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sign (s) -- sign a file
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verify (v) -- verify a detached signature
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`
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func main() {
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if len(os.Args) < 2 {
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fatalf("pm: missing subcommand\n\n%v", usage)
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}
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cmd := os.Args[1]
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root := os.Getenv("PM_ROOT")
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if root == "" {
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root = "/usr/local"
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}
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signID := os.Getenv("PM_PGP_ID")
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switch cmd {
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case "env", "environ":
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fmt.Printf("PM_ROOT=%q\n", root)
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fmt.Printf("PM_PGP_ID=%q\n", signID)
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case "key", "keyring":
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if len(os.Args[1:]) < 2 {
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fatalf("pm keyring: insufficient args\n\nusage: %v", keyUsage)
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}
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sub, args := os.Args[2], os.Args[3:]
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switch sub {
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case "ls", "list":
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if err := keyring.ListKeys(root, os.Stdout); err != nil {
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fatalf("listing keypair: %v\n", err)
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}
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case "c", "create":
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var name, email string
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s := bufio.NewScanner(os.Stdin)
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fmt.Printf("name: ")
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s.Scan()
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if err := s.Err(); err != nil {
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fatalf("reading name: %v\n", err)
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}
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name = s.Text()
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fmt.Printf("email: ")
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s.Scan()
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if err := s.Err(); err != nil {
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fatalf("reading email: %v\n", err)
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}
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email = s.Text()
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if err := os.Stdin.Close(); err != nil {
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fatalf("%v\n", err)
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}
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if err := keyring.NewKeyPair(root, name, email); err != nil {
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fatalf("creating keypair: %v\n", err)
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}
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case "export", "e":
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if len(args) != 1 {
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fatalf("missing email argument\n")
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}
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email := args[0]
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if err := keyring.Export(root, os.Stdout, email); err != nil {
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fatalf("exporting public key for %q: %v\n", email, err)
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}
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case "sign", "s":
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if signID == "" {
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fatalf("must set PM_PGP_ID\n")
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}
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if err := keyring.Sign(root, signID, os.Stdin, os.Stdout); err != nil {
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fatalf("signing: %v\n", err)
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}
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case "verify", "v":
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if len(args) != 2 {
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fatalf("usage: pm key verify <file> <sig>\n")
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}
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fn, sn := args[0], args[1]
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ff, err := os.Open(fn)
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if err != nil {
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fatalf("opening %q: %v\n", fn, err)
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}
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defer ff.Close()
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sf, err := os.Open(sn)
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if err != nil {
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fatalf("opening %q: %v\n", fn, err)
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}
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defer sf.Close()
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if err := keyring.Verify(root, ff, sf); err != nil {
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fatalf("detached sig verify: %v\n", err)
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}
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case "i", "import":
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if err := keyring.Import(root, os.Stdin); err != nil {
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fatalf("importing key: %v\n", err)
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}
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case "remove", "rm":
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if len(args) != 1 {
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fatalf("missing key id\n\nusage: pm key remove <id>\n")
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}
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id := args[0]
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if err := keyring.Remove(root, id); err != nil {
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fatalf("removing key for %q: %v\n", id, err)
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}
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default:
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fatalf("unknown keyring subcommand: %q\n\nusage: %v", sub, keyUsage)
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}
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default:
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fatalf("uknown subcommand %q\n\nusage: %v", cmd, usage)
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}
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}
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func fatalf(f string, args ...interface{}) {
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fmt.Fprintf(os.Stderr, f, args...)
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os.Exit(1)
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}
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