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package msg
import (
"errors"
"fmt"
"strings"
"git.sr.ht/~rjarry/aerc/app"
"git.sr.ht/~rjarry/aerc/commands"
"git.sr.ht/~rjarry/aerc/lib/format"
"git.sr.ht/~rjarry/aerc/lib/log"
"git.sr.ht/~rjarry/aerc/models"
"github.com/emersion/go-message/mail"
)
type Envelope struct {
Header bool `opt:"-h"`
Format string `opt:"-s" default:"%-20.20s: %s"`
}
func init() {
commands.Register(Envelope{})
}
func (Envelope) Context() commands.CommandContext {
return commands.MESSAGE
}
func (Envelope) Aliases() []string {
return []string{"envelope"}
}
func (e Envelope) Execute(args []string) error {
provider, ok := app.SelectedTabContent().(app.ProvidesMessages)
if !ok {
return fmt.Errorf("current tab does not implement app.ProvidesMessage interface")
}
acct := provider.SelectedAccount()
if acct == nil {
return errors.New("No account selected")
}
var list []string
if msg, err := provider.SelectedMessage(); err != nil {
return err
} else {
if msg != nil {
if e.Header {
list = parseHeader(msg, e.Format)
} else {
list = parseEnvelope(msg, e.Format,
acct.UiConfig().TimestampFormat)
}
} else {
return fmt.Errorf("Selected message is empty.")
}
}
n := len(list)
app.AddDialog(app.NewDialog(
app.NewListBox(
"Message Envelope. Press <Esc> or <Enter> to close. "+
"Start typing to filter.",
list,
app.SelectedAccountUiConfig(),
func(_ string) {
app.CloseDialog()
},
),
// start pos on screen
func(h int) int {
if n < h/8*6 {
return h/2 - n/2 - 1
}
return h / 8
},
// dialog height
func(h int) int {
if n < h/8*6 {
return n + 2
}
return h / 8 * 6
},
))
return nil
}
func parseEnvelope(msg *models.MessageInfo, fmtStr, fmtTime string,
) (result []string) {
if envlp := msg.Envelope; envlp != nil {
addStr := func(key, text string) {
result = append(result, fmt.Sprintf(fmtStr, key, text))
}
addAddr := func(key string, ls []*mail.Address) {
for _, l := range ls {
result = append(result,
fmt.Sprintf(fmtStr, key,
format.AddressForHumans(l)))
}
}
addStr("Date", envlp.Date.Format(fmtTime))
addStr("Subject", envlp.Subject)
addStr("Message-Id", envlp.MessageId)
addAddr("From", envlp.From)
addAddr("To", envlp.To)
addAddr("ReplyTo", envlp.ReplyTo)
addAddr("Cc", envlp.Cc)
addAddr("Bcc", envlp.Bcc)
}
return
}
func parseHeader(msg *models.MessageInfo, fmtStr string) (result []string) {
if h := msg.RFC822Headers; h != nil {
hf := h.Fields()
for hf.Next() {
text, err := hf.Text()
if err != nil {
log.Errorf(err.Error())
text = hf.Value()
}
result = append(result,
headerExpand(fmtStr, hf.Key(), text)...)
}
}
return
}
func headerExpand(fmtStr, key, text string) []string {
var result []string
switch strings.ToLower(key) {
case "to", "from", "bcc", "cc":
for _, item := range strings.Split(text, ",") {
result = append(result, fmt.Sprintf(fmtStr, key,
strings.TrimSpace(item)))
}
default:
result = append(result, fmt.Sprintf(fmtStr, key, text))
}
return result
}
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