package state
import (
"bufio"
"bytes"
"fmt"
"os"
"os/exec"
"strings"
"time"
"git.sr.ht/~rjarry/aerc/config"
"git.sr.ht/~rjarry/aerc/lib/log"
"git.sr.ht/~rjarry/aerc/lib/ui"
"git.sr.ht/~rjarry/aerc/lib/xdg"
"git.sr.ht/~rjarry/aerc/models"
"github.com/danwakefield/fnmatch"
sortthread "github.com/emersion/go-imap-sortthread"
"github.com/emersion/go-message/mail"
)
type Composer interface {
AddAttachment(string)
}
type DataSetter interface {
Data() models.TemplateData
SetHeaders(*mail.Header, *models.OriginalMail)
SetInfo(*models.MessageInfo, int, bool)
SetVisual(bool)
SetThreading(string, bool, int, int, bool, bool)
SetComposer(Composer)
SetAccount(*config.AccountConfig)
SetFolder(*models.Directory)
SetRUE([]string, func(string) (int, int, int))
SetState(s *AccountState)
SetPendingKeys([]config.KeyStroke)
}
type ThreadInfo struct {
SameSubject bool
Prefix string
Count int
Unread int
Folded bool
Context bool
}
type templateData struct {
// only available when composing/replying/forwarding
headers *mail.Header
// only available when replying with a quote
parent *models.OriginalMail
// only available for the message list
info *models.MessageInfo
marked bool
msgNum int
visual bool
// message list threading
threadInfo ThreadInfo
// selected account
account *config.AccountConfig
myAddresses map[string]bool
folder *models.Directory // selected folder
folders []string
getRUEcount func(string) (int, int, int)
state *AccountState
pendingKeys []config.KeyStroke
composer Composer
}
func NewDataSetter() DataSetter {
return &templateData{}
}
// Data returns the template data
func (d *templateData) Data() models.TemplateData {
return d
}
// only used for compose/reply/forward
func (d *templateData) SetHeaders(h *mail.Header, o *models.OriginalMail) {
d.headers = h
d.parent = o
}
// only used for message list templates
func (d *templateData) SetInfo(info *models.MessageInfo, num int, marked bool,
) {
d.info = info
d.msgNum = num
d.marked = marked
}
func (d *templateData) SetVisual(visual bool) {
d.visual = visual
}
func (d *templateData) SetThreading(prefix string, same bool, count int,
unread int, folded bool, context bool,
) {
d.threadInfo.Prefix = prefix
d.threadInfo.SameSubject = same
d.threadInfo.Count = count
d.threadInfo.Unread = unread
d.threadInfo.Folded = folded
d.threadInfo.Context = context
}
func (d *templateData) SetAccount(acct *config.AccountConfig) {
d.account = acct
d.myAddresses = make(map[string]bool)
if acct != nil {
d.myAddresses[acct.From.Address] = true
for _, addr := range acct.Aliases {
d.myAddresses[addr.Address] = true
}
}
}
func (d *templateData) SetFolder(folder *models.Directory) {
d.folder = folder
}
func (d *templateData) SetComposer(c Composer) {
d.composer = c
}
func (d *templateData) SetRUE(folders []string,
cb func(string) (int, int, int),
) {
d.folders = folders
d.getRUEcount = cb
}
func (d *templateData) SetState(state *AccountState) {
d.state = state
}
func (d *templateData) SetPendingKeys(keys []config.KeyStroke) {
d.pendingKeys = keys
}
func (d *templateData) Attach(s string) string {
if d.composer != nil {
d.composer.AddAttachment(s)
return ""
}
return fmt.Sprintf("Failed to attach: %s", s)
}
func (d *templateData) Account() string {
if d.account != nil {
return d.account.Name
}
return ""
}
func (d *templateData) Folder() string {
if d.folder != nil {
return d.folder.Name
}
return ""
}
func (d *templateData) Role() string {
if d.folder != nil {
return string(d.folder.Role)
}
return ""
}
func (d *templateData) ui() *config.UIConfig {
return config.Ui.ForAccount(d.Account()).ForFolder(d.Folder())
}
func (d *templateData) To() []*mail.Address {
var to []*mail.Address
switch {
case d.info != nil && d.info.Envelope != nil:
to = d.info.Envelope.To
case d.headers != nil:
to, _ = d.headers.AddressList("to")
}
return to
}
func (d *templateData) Cc() []*mail.Address {
var cc []*mail.Address
switch {
case d.info != nil && d.info.Envelope != nil:
cc = d.info.Envelope.Cc
case d.headers != nil:
cc, _ = d.headers.AddressList("cc")
}
return cc
}
func (d *templateData) Bcc() []*mail.Address {
var bcc []*mail.Address
switch {
case d.info != nil && d.info.Envelope != nil:
bcc = d.info.Envelope.Bcc
case d.headers != nil:
bcc, _ = d.headers.AddressList("bcc")
}
return bcc
}
func (d *templateData) From() []*mail.Address {
var from []*mail.Address
switch {
case d.info != nil && d.info.Envelope != nil:
from = d.info.Envelope.From
case d.headers != nil:
from, _ = d.headers.AddressList("from")
}
return from
}
func (d *templateData) Peer() []*mail.Address {
var from, to []*mail.Address
switch {
case d.info != nil && d.info.Envelope != nil:
from = d.info.Envelope.From
to = d.info.Envelope.To
case d.headers != nil:
from, _ = d.headers.AddressList("from")
to, _ = d.headers.AddressList("to")
}
for _, addr := range from {
for myAddr := range d.myAddresses {
if fnmatch.Match(myAddr, addr.Address, 0) {
return to
}
}
}
return from
}
func (d *templateData) ReplyTo() []*mail.Address {
var replyTo []*mail.Address
switch {
case d.info != nil && d.info.Envelope != nil:
replyTo = d.info.Envelope.ReplyTo
case d.headers != nil:
replyTo, _ = d.headers.AddressList("reply-to")
}
return replyTo
}
func (d *templateData) Date() time.Time {
var date time.Time
switch {
case d.info != nil && d.info.Envelope != nil:
date = d.info.Envelope.Date
case d.info != nil:
date = d.info.InternalDate
default:
date = time.Now()
}
return date
}
func (d *templateData) DateAutoFormat(date time.Time) string {
if date.IsZero() {
return ""
}
ui := d.ui()
year := date.Year()
day := date.YearDay()
now := time.Now()
thisYear := now.Year()
thisDay := now.YearDay()
fmt := ui.TimestampFormat
if year == thisYear {
switch {
case day == thisDay && ui.ThisDayTimeFormat != "":
fmt = ui.ThisDayTimeFormat
case day > thisDay-7 && ui.ThisWeekTimeFormat != "":
fmt = ui.ThisWeekTimeFormat
case ui.ThisYearTimeFormat != "":
fmt = ui.ThisYearTimeFormat
}
}
return date.Format(fmt)
}
func (d *templateData) Header(name string) string {
var h *mail.Header
switch {
case d.headers != nil:
h = d.headers
case d.info != nil && d.info.RFC822Headers != nil:
h = d.info.RFC822Headers
default:
return ""
}
text, err := h.Text(name)
if err != nil {
text = h.Get(name)
}
return text
}
func (d *templateData) ThreadPrefix() string {
return d.threadInfo.Prefix
}
func (d *templateData) ThreadCount() int {
return d.threadInfo.Count
}
func (d *templateData) ThreadUnread() int {
return d.threadInfo.Unread
}
func (d *templateData) ThreadFolded() bool {
return d.threadInfo.Folded
}
func (d *templateData) ThreadContext() bool {
return d.threadInfo.Context
}
func (d *templateData) Subject() string {
var subject string
switch {
case d.info != nil && d.info.Envelope != nil:
subject = d.info.Envelope.Subject
case d.headers != nil:
subject = d.Header("subject")
}
if d.threadInfo.SameSubject {
subject = ""
} else if subject == "" {
subject = config.Ui.EmptySubject
}
return subject
}
func (d *templateData) SubjectBase() string {
var subject string
switch {
case d.info != nil && d.info.Envelope != nil:
subject = d.info.Envelope.Subject
case d.headers != nil:
subject = d.Header("subject")
}
base, _ := sortthread.GetBaseSubject(subject)
return base
}
func (d *templateData) Number() int {
return d.msgNum
}
func (d *templateData) Labels() []string {
if d.info == nil {
return nil
}
return d.info.Labels
}
func (d *templateData) Filename() string {
if d.info == nil {
return ""
}
if (d.info.Filenames != nil) && len(d.info.Filenames) > 0 {
return d.info.Filenames[0]
}
return ""
}
func (d *templateData) Filenames() []string {
if d.info == nil {
return nil
}
return d.info.Filenames
}
func (d *templateData) Flags() []string {
var flags []string
if d.info == nil {
return flags
}
switch {
case d.info.Flags.Has(models.SeenFlag | models.AnsweredFlag):
flags = append(flags, d.ui().IconReplied) // message has been replied to
case d.info.Flags.Has(models.SeenFlag):
break
case d.info.Flags.Has(models.RecentFlag):
flags = append(flags, d.ui().IconNew) // message is unread and new
default:
flags = append(flags, d.ui().IconOld) // message is unread and old
}
if d.info.Flags.Has(models.DraftFlag) {
flags = append(flags, d.ui().IconDraft)
}
if d.info.Flags.Has(models.DeletedFlag) {
flags = append(flags, d.ui().IconDeleted)
}
if d.info.BodyStructure != nil {
for _, bS := range d.info.BodyStructure.Parts {
if strings.ToLower(bS.Disposition) == "attachment" {
flags = append(flags, d.ui().IconAttachment)
break
}
}
}
if d.info.Flags.Has(models.FlaggedFlag) {
flags = append(flags, d.ui().IconFlagged)
}
if d.marked {
flags = append(flags, d.ui().IconMarked)
}
return flags
}
func (d *templateData) IsReplied() bool {
if d.info != nil && d.info.Flags.Has(models.AnsweredFlag) {
return true
}
return false
}
func (d *templateData) HasAttachment() bool {
if d.info != nil && d.info.BodyStructure != nil {
for _, bS := range d.info.BodyStructure.Parts {
if strings.ToLower(bS.Disposition) == "attachment" {
return true
}
}
}
return false
}
func (d *templateData) IsRecent() bool {
if d.info != nil && d.info.Flags.Has(models.RecentFlag) {
return true
}
return false
}
func (d *templateData) IsUnread() bool {
if d.info != nil && !d.info.Flags.Has(models.SeenFlag) {
return true
}
return false
}
func (d *templateData) IsFlagged() bool {
if d.info != nil && d.info.Flags.Has(models.FlaggedFlag) {
return true
}
return false
}
func (d *templateData) IsDraft() bool {
if d.info != nil && d.info.Flags.Has(models.DraftFlag) {
return true
}
return false
}
func (d *templateData) IsMarked() bool {
return d.marked
}
func (d *templateData) MessageId() string {
if d.info == nil || d.info.Envelope == nil {
return ""
}
return d.info.Envelope.MessageId
}
func (d *templateData) Size() int {
if d.info == nil || d.info.Envelope == nil {
return 0
}
return int(d.info.Size)
}
func (d *templateData) OriginalText() string {
if d.parent == nil {
return ""
}
return d.parent.Text
}
func (d *templateData) OriginalDate() time.Time {
if d.parent == nil {
return time.Time{}
}
return d.parent.Date
}
func (d *templateData) OriginalFrom() []*mail.Address {
if d.parent == nil || d.parent.RFC822Headers == nil {
return nil
}
from, _ := d.parent.RFC822Headers.AddressList("from")
return from
}
func (d *templateData) OriginalMIMEType() string {
if d.parent == nil {
return ""
}
return d.parent.MIMEType
}
func (d *templateData) OriginalHeader(name string) string {
if d.parent == nil || d.parent.RFC822Headers == nil {
return ""
}
text, err := d.parent.RFC822Headers.Text(name)
if err != nil {
text = d.parent.RFC822Headers.Get(name)
}
return text
}
func (d *templateData) rue(folders ...string) (int, int, int) {
var recent, unread, exists int
if d.getRUEcount != nil {
if len(folders) == 0 {
folders = d.folders
}
for _, dir := range folders {
r, u, e := d.getRUEcount(dir)
recent += r
unread += u
exists += e
}
}
return recent, unread, exists
}
func (d *templateData) Recent(folders ...string) int {
r, _, _ := d.rue(folders...)
return r
}
func (d *templateData) Unread(folders ...string) int {
_, u, _ := d.rue(folders...)
return u
}
func (d *templateData) Exists(folders ...string) int {
_, _, e := d.rue(folders...)
return e
}
func (d *templateData) RUE(folders ...string) string {
r, u, e := d.rue(folders...)
switch {
case r > 0:
return fmt.Sprintf("%d/%d/%d", r, u, e)
case u > 0:
return fmt.Sprintf("%d/%d", u, e)
case e > 0:
return fmt.Sprintf("%d", e)
}
return ""
}
func (d *templateData) Connected() bool {
if d.state != nil {
return d.state.Connected
}
return false
}
func (d *templateData) ConnectionInfo() string {
switch {
case d.state == nil:
return ""
case d.state.connActivity != "":
return d.state.connActivity
case d.state.Connected:
return texter().Connected()
default:
return texter().Disconnected()
}
}
func (d *templateData) ContentInfo() string {
if d.state == nil {
return ""
}
var content []string
fldr := d.state.folderState(d.Folder())
if fldr.FilterActivity != "" {
content = append(content, fldr.FilterActivity)
} else if fldr.Filter != "" {
content = append(content, texter().FormatFilter(fldr.Filter))
}
if fldr.Search != "" {
content = append(content, texter().FormatSearch(fldr.Search))
}
return strings.Join(content, config.Statusline.Separator)
}
func (d *templateData) StatusInfo() string {
stat := d.ConnectionInfo()
if content := d.ContentInfo(); content != "" {
stat += config.Statusline.Separator + content
}
return stat
}
func (d *templateData) TrayInfo() string {
if d.state == nil {
return ""
}
var tray []string
fldr := d.state.folderState(d.Folder())
if fldr.Sorting {
tray = append(tray, texter().Sorting())
}
if fldr.Threading {
tray = append(tray, texter().Threading())
}
if d.state.passthrough {
tray = append(tray, texter().Passthrough())
}
if d.visual {
tray = append(tray, texter().Visual())
}
return strings.Join(tray, config.Statusline.Separator)
}
func (d *templateData) PendingKeys() string {
return config.FormatKeyStrokes(d.pendingKeys)
}
func (d *templateData) Style(content, name string) string {
cfg := config.Ui.ForAccount(d.Account())
style := cfg.GetUserStyle(name)
return ui.ApplyStyle(style, content)
}
func (d *templateData) StyleSwitch(content string, cases ...models.Case) string {
for _, c := range cases {
if c.Matches(content) {
cfg := config.Ui.ForAccount(d.Account())
style := cfg.GetUserStyle(c.Value())
return ui.ApplyStyle(style, content)
}
}
return content
}
func (d *templateData) StyleMap(elems []string, cases ...models.Case) []string {
mapped := make([]string, 0, len(elems))
top:
for _, e := range elems {
for _, c := range cases {
if c.Matches(e) {
if c.Skip() {
continue top
}
cfg := config.Ui.ForAccount(d.Account())
style := cfg.GetUserStyle(c.Value())
e = ui.ApplyStyle(style, e)
break
}
}
mapped = append(mapped, e)
}
return mapped
}
func (d *templateData) Signature() string {
if d.account == nil {
return ""
}
var signature []byte
if d.account.SignatureCmd != "" {
var err error
signature, err = d.readSignatureFromCmd()
if err != nil {
signature = d.readSignatureFromFile()
}
} else {
signature = d.readSignatureFromFile()
}
if len(bytes.TrimSpace(signature)) == 0 {
return ""
}
signature = d.ensureSignatureDelimiter(signature)
return string(signature)
}
func (d *templateData) readSignatureFromCmd() ([]byte, error) {
sigCmd := d.account.SignatureCmd
cmd := exec.Command("sh", "-c", sigCmd)
signature, err := cmd.Output()
if err != nil {
return nil, err
}
return signature, nil
}
func (d *templateData) readSignatureFromFile() []byte {
sigFile := d.account.SignatureFile
if sigFile == "" {
return nil
}
sigFile = xdg.ExpandHome(sigFile)
signature, err := os.ReadFile(sigFile)
if err != nil {
log.Errorf(" Error loading signature from file: %v", sigFile)
return nil
}
return signature
}
func (d *templateData) ensureSignatureDelimiter(signature []byte) []byte {
buf := bytes.NewBuffer(signature)
scanner := bufio.NewScanner(buf)
for scanner.Scan() {
line := scanner.Text()
if line == "-- " {
// signature contains standard delimiter, we're good
return signature
}
}
// signature does not contain standard delimiter, prepend one
sig := "\n\n-- \n" + strings.TrimLeft(string(signature), " \t\r\n")
return []byte(sig)
}
