package widgets import ( "errors" "git.sr.ht/~sircmpwn/aerc/lib/ui" "github.com/gdamore/tcell" "golang.org/x/crypto/openpgp" pgperrors "golang.org/x/crypto/openpgp/errors" ) type PGPInfo struct { ui.Invalidatable details *openpgp.MessageDetails } func NewPGPInfo(details *openpgp.MessageDetails) *PGPInfo { return &PGPInfo{details: details} } func (p *PGPInfo) DrawSignature(ctx *ui.Context) { errorStyle := tcell.StyleDefault.Background(tcell.ColorRed). Foreground(tcell.ColorWhite).Bold(true) softErrorStyle := tcell.StyleDefault.Foreground(tcell.ColorYellow).Bold(true) validStyle := tcell.StyleDefault.Foreground(tcell.ColorGreen).Bold(true) // TODO: Nicer prompt for TOFU, fetch from keyserver, etc if errors.Is(p.details.SignatureError, pgperrors.ErrUnknownIssuer) || p.details.SignedBy == nil { x := ctx.Printf(0, 0, softErrorStyle, "*") x += ctx.Printf(x, 0, tcell.StyleDefault, " Signed with unknown key (%8X); authenticity unknown", p.details.SignedByKeyId) } else if p.details.SignatureError != nil { x := ctx.Printf(0, 0, errorStyle, "Invalid signature!") x += ctx.Printf(x, 0, tcell.StyleDefault. Foreground(tcell.ColorRed).Bold(true), " This message may have been tampered with! (%s)", p.details.SignatureError.Error()) } else { entity := p.details.SignedBy.Entity var ident *openpgp.Identity // TODO: Pick identity more intelligently for _, ident = range entity.Identities { break } x := ctx.Printf(0, 0, validStyle, "✓ ") x += ctx.Printf(x, 0, tcell.StyleDefault, "Authentic signature from %s (%8X)", ident.Name, p.details.SignedByKeyId) } } func (p *PGPInfo) DrawEncryption(ctx *ui.Context, y int) { validStyle := tcell.StyleDefault.Foreground(tcell.ColorGreen).Bold(true) entity := p.details.DecryptedWith.Entity var ident *openpgp.Identity // TODO: Pick identity more intelligently for _, ident = range entity.Identities { break } x := ctx.Printf(0, y, validStyle, "✓ ") x += ctx.Printf(x, y, tcell.StyleDefault, "Encrypted for %s (%8X) ", ident.Name, p.details.DecryptedWith.PublicKey.KeyId) } func (p *PGPInfo) Draw(ctx *ui.Context) { ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ', tcell.StyleDefault) if p.details.IsSigned && p.details.IsEncrypted { p.DrawSignature(ctx) p.DrawEncryption(ctx, 1) } else if p.details.IsSigned { p.DrawSignature(ctx) } else if p.details.IsEncrypted { p.DrawEncryption(ctx, 0) } } func (p *PGPInfo) Invalidate() { p.DoInvalidate(p) }