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package msg
import (
"fmt"
"io"
"math/rand"
"sync"
"time"
"github.com/emersion/go-message"
_ "github.com/emersion/go-message/charset"
"github.com/emersion/go-message/mail"
"github.com/pkg/errors"
"git.sr.ht/~rjarry/aerc/lib"
"git.sr.ht/~rjarry/aerc/logging"
"git.sr.ht/~rjarry/aerc/models"
"git.sr.ht/~rjarry/aerc/widgets"
"git.sr.ht/~rjarry/aerc/worker/types"
"git.sr.ht/~sircmpwn/getopt"
)
type Recall struct{}
func init() {
register(Recall{})
}
func (Recall) Aliases() []string {
return []string{"recall"}
}
func (Recall) Complete(aerc *widgets.Aerc, args []string) []string {
return nil
}
func (Recall) Execute(aerc *widgets.Aerc, args []string) error {
force := false
opts, optind, err := getopt.Getopts(args, "f")
if err != nil {
return err
}
for _, opt := range opts {
switch opt.Option {
case 'f':
force = true
}
}
if len(args) != optind {
return errors.New("Usage: recall [-f]")
}
widget := aerc.SelectedTabContent().(widgets.ProvidesMessage)
acct := widget.SelectedAccount()
if acct == nil {
return errors.New("No account selected")
}
if acct.SelectedDirectory() != acct.AccountConfig().Postpone && !force {
return errors.New("Use -f to recall from outside the " +
acct.AccountConfig().Postpone + " directory.")
}
store := widget.Store()
if store == nil {
return errors.New("Cannot perform action. Messages still loading")
}
msgInfo, err := widget.SelectedMessage()
if err != nil {
return errors.Wrap(err, "Recall failed")
}
logging.Infof("Recalling message %s", msgInfo.Envelope.MessageId)
composer, err := widgets.NewComposer(aerc, acct, aerc.Config(),
acct.AccountConfig(), acct.Worker(), "", msgInfo.RFC822Headers,
models.OriginalMail{})
if err != nil {
return errors.Wrap(err, "Cannot open a new composer")
}
// focus the terminal since the header fields are likely already done
composer.FocusTerminal()
addTab := func() {
subject := msgInfo.Envelope.Subject
if subject == "" {
subject = "Recalled email"
}
tab := aerc.NewTab(composer, subject)
composer.OnHeaderChange("Subject", func(subject string) {
if subject == "" {
tab.Name = "New email"
} else {
tab.Name = subject
}
tab.Content.Invalidate()
})
composer.OnClose(func(composer *widgets.Composer) {
worker := composer.Worker()
uids := []uint32{msgInfo.Uid}
if acct.SelectedDirectory() != acct.AccountConfig().Postpone {
return
}
deleteMessage := func() {
worker.PostAction(&types.DeleteMessages{
Uids: uids,
}, func(msg types.WorkerMessage) {
switch msg := msg.(type) {
case *types.Done:
aerc.PushStatus("Recalled message deleted", 10*time.Second)
case *types.Error:
aerc.PushError(msg.Error.Error())
}
})
}
if composer.Sent() {
deleteMessage()
} else {
confirm := widgets.NewSelectorDialog(
"Delete recalled message?",
"If you proceed, the recalled message will be deleted.",
[]string{"Cancel", "Proceed"}, 0, aerc.SelectedAccountUiConfig(),
func(option string, err error) {
aerc.CloseDialog()
switch option {
case "Proceed":
deleteMessage()
default:
}
return
},
)
aerc.AddDialog(confirm)
}
})
}
lib.NewMessageStoreView(msgInfo, store, aerc.Crypto, aerc.DecryptKeys,
func(msg lib.MessageView, err error) {
if err != nil {
aerc.PushError(err.Error())
return
}
var (
path []int
part *models.BodyStructure
)
if len(msg.BodyStructure().Parts) != 0 {
path = lib.FindPlaintext(msg.BodyStructure(), path)
}
part, err = msg.BodyStructure().PartAtIndex(path)
if part == nil || err != nil {
part = msg.BodyStructure()
}
msg.FetchBodyPart(path, func(reader io.Reader) {
header := message.Header{}
header.SetText(
"Content-Transfer-Encoding", part.Encoding)
header.SetContentType(part.MIMEType, part.Params)
header.SetText("Content-Description", part.Description)
entity, err := message.New(header, reader)
if err != nil {
aerc.PushError(err.Error())
addTab()
return
}
mreader := mail.NewReader(entity)
part, err := mreader.NextPart()
if err != nil {
aerc.PushError(err.Error())
addTab()
return
}
composer.SetContents(part.Body)
if md := msg.MessageDetails(); md != nil {
if md.IsEncrypted {
composer.SetEncrypt(md.IsEncrypted)
}
if md.IsSigned {
composer.SetSign(md.IsSigned)
}
}
addTab()
// add attachements if present
var mu sync.Mutex
parts := lib.FindAllNonMultipart(msg.BodyStructure(), nil, nil)
for _, p := range parts {
if lib.EqualParts(p, path) {
continue
}
bs, err := msg.BodyStructure().PartAtIndex(p)
if err != nil {
logging.Infof("cannot get PartAtIndex %v: %v", p, err)
continue
}
msg.FetchBodyPart(p, func(reader io.Reader) {
mime := fmt.Sprintf("%s/%s", bs.MIMEType, bs.MIMESubType)
name, ok := bs.Params["name"]
if !ok {
name = fmt.Sprintf("%s_%s_%d", bs.MIMEType, bs.MIMESubType, rand.Uint64())
}
mu.Lock()
composer.AddPartAttachment(name, mime, bs.Params, reader)
mu.Unlock()
})
}
})
})
return nil
}
|
