modify-labels: adapt to ProvidesMessages - aerc - mirror of ~rjarry's aerc fork

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author	Reto Brunner <reto@labrat.space>	2019-12-18 06:34:06 +0100
committer	Drew DeVault <sir@cmpwn.com>	2019-12-21 09:27:53 -0500
commit	a744df724f8b7acb0ac231a615192d33c414012e (patch)
tree	b5abf1aa47c73a39f246b9937e5774ec8e030f3a /lib/format
parent	113de3596120b78aa78acb9e3335fd40029651da (diff)
download	aerc-a744df724f8b7acb0ac231a615192d33c414012e.tar.gz

modify-labels: adapt to ProvidesMessages

Diffstat (limited to 'lib/format')

0 files changed, 0 insertions, 0 deletions

package msg import ( "bufio" "errors" "net/url" "strings" "git.sr.ht/~sircmpwn/aerc/lib" "git.sr.ht/~sircmpwn/aerc/models" "git.sr.ht/~sircmpwn/aerc/widgets" ) // Unsubscribe helps people unsubscribe from mailing lists by way of the // List-Unsubscribe header. type Unsubscribe struct{} func init() { register(Unsubscribe{}) } // Aliases returns a list of aliases for the :unsubscribe command func (Unsubscribe) Aliases() []string { return []string{"unsubscribe"} } // Complete returns a list of completions func (Unsubscribe) Complete(aerc *widgets.Aerc, args []string) []string { return nil } // Execute runs the Unsubscribe command func (Unsubscribe) Execute(aerc *widgets.Aerc, args []string) error { if len(args) != 1 { return errors.New("Usage: unsubscribe") } widget := aerc.SelectedTab().(widgets.ProvidesMessage) msg, err := widget.SelectedMessage() if err != nil { return err } headers := msg.RFC822Headers if !headers.Has("list-unsubscribe") { return errors.New("No List-Unsubscribe header found") } methods := parseUnsubscribeMethods(headers.Get("list-unsubscribe")) aerc.Logger().Printf("found %d unsubscribe methods", len(methods)) for _, method := range methods { aerc.Logger().Printf("trying to unsubscribe using %v", method) switch method.Scheme { case "mailto": return unsubscribeMailto(aerc, method) case "http", "https": return unsubscribeHTTP(method) default: aerc.Logger().Printf("skipping unrecognized scheme: %s", method.Scheme) } } return errors.New("no supported unsubscribe methods found") } // parseUnsubscribeMethods reads the list-unsubscribe header and parses it as a // list of angle-bracket <> deliminated URLs. See RFC 2369. func parseUnsubscribeMethods(header string) (methods []*url.URL) { r := bufio.NewReader(strings.NewReader(header)) for { // discard until < _, err := r.ReadSlice('<') if err != nil { return } // read until < m, err := r.ReadSlice('>') if err != nil { return } m = m[:len(m)-1] if u, err := url.Parse(string(m)); err == nil { methods = append(methods, u) } } } func unsubscribeMailto(aerc *widgets.Aerc, u *url.URL) error { widget := aerc.SelectedTab().(widgets.ProvidesMessage) acct := widget.SelectedAccount() defaults := map[string]string{ "To": u.Opaque, "Subject": u.Query().Get("subject"), } composer, err := widgets.NewComposer( aerc, aerc.Config(), acct.AccountConfig(), acct.Worker(), "", defaults, models.OriginalMail{}, ) if err != nil { return err } composer.SetContents(strings.NewReader(u.Query().Get("body"))) tab := aerc.NewTab(composer, "unsubscribe") composer.OnHeaderChange("Subject", func(subject string) { if subject == "" { tab.Name = "unsubscribe" } else { tab.Name = subject } tab.Content.Invalidate() }) return nil } func unsubscribeHTTP(u *url.URL) error { return lib.OpenFile(u.String()) }


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