yay/pkg/pgp/keys.go
2020-07-11 00:48:30 +02:00

126 lines
3.2 KiB
Go

package pgp
import (
"bytes"
"errors"
"fmt"
"os"
"os/exec"
"strings"
gosrc "github.com/Morganamilo/go-srcinfo"
"github.com/leonelquinteros/gotext"
"github.com/Jguer/yay/v10/pkg/dep"
"github.com/Jguer/yay/v10/pkg/text"
)
// pgpKeySet maps a PGP key with a list of PKGBUILDs that require it.
// This is similar to stringSet, used throughout the code.
type pgpKeySet map[string][]dep.Base
func (set pgpKeySet) toSlice() []string {
slice := make([]string, 0, len(set))
for v := range set {
slice = append(slice, v)
}
return slice
}
func (set pgpKeySet) set(key string, p dep.Base) {
// Using ToUpper to make sure keys with a different case will be
// considered the same.
upperKey := strings.ToUpper(key)
set[upperKey] = append(set[upperKey], p)
}
func (set pgpKeySet) get(key string) bool {
upperKey := strings.ToUpper(key)
_, exists := set[upperKey]
return exists
}
// CheckPgpKeys iterates through the keys listed in the PKGBUILDs and if needed,
// asks the user whether yay should try to import them.
func CheckPgpKeys(bases []dep.Base, srcinfos map[string]*gosrc.Srcinfo,
gpgBin, gpgFlags string, noConfirm bool) error {
// Let's check the keys individually, and then we can offer to import
// the problematic ones.
problematic := make(pgpKeySet)
args := append(strings.Fields(gpgFlags), "--list-keys")
// Mapping all the keys.
for _, base := range bases {
pkg := base.Pkgbase()
srcinfo := srcinfos[pkg]
for _, key := range srcinfo.ValidPGPKeys {
// If key already marked as problematic, indicate the current
// PKGBUILD requires it.
if problematic.get(key) {
problematic.set(key, base)
continue
}
cmd := exec.Command(gpgBin, append(args, key)...)
err := cmd.Run()
if err != nil {
problematic.set(key, base)
}
}
}
// No key issues!
if len(problematic) == 0 {
return nil
}
str, err := formatKeysToImport(problematic)
if err != nil {
return err
}
fmt.Println()
fmt.Println(str)
if text.ContinueTask(gotext.Get("Import?"), true, noConfirm) {
return importKeys(problematic.toSlice(), gpgBin, gpgFlags)
}
return nil
}
// importKeys tries to import the list of keys specified in its argument.
func importKeys(keys []string, gpgBin, gpgFlags string) error {
args := append(strings.Fields(gpgFlags), "--recv-keys")
cmd := exec.Command(gpgBin, append(args, keys...)...)
cmd.Stdin, cmd.Stdout, cmd.Stderr = os.Stdin, os.Stdout, os.Stderr
text.OperationInfoln(gotext.Get("Importing keys with gpg..."))
err := cmd.Run()
if err != nil {
return errors.New(gotext.Get("problem importing keys"))
}
return nil
}
// formatKeysToImport receives a set of keys and returns a string containing the
// question asking the user wants to import the problematic keys.
func formatKeysToImport(keys pgpKeySet) (string, error) {
if len(keys) == 0 {
return "", errors.New(gotext.Get("no keys to import"))
}
var buffer bytes.Buffer
buffer.WriteString(text.SprintOperationInfo(gotext.Get("PGP keys need importing:")))
for key, bases := range keys {
pkglist := ""
for _, base := range bases {
pkglist += base.String() + " "
}
pkglist = strings.TrimRight(pkglist, " ")
buffer.WriteString("\n" + text.SprintWarn(gotext.Get("%s, required by: %s", text.Cyan(key), text.Cyan(pkglist))))
}
return buffer.String(), nil
}