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Factor IMAP-specific structs out of UI models 

Before, we were using several IMAP-specific concepts to represent
information being displayed in the UI. Factor these structures out of
the IMAP package to make it easier for other backends to provide the
required information.
This commit is contained in:
Ben Burwell 2019-07-07 22:43:58 -04:00 committed by Drew DeVault
parent 88c379dcba
commit c610c3cd9d
10 changed files with 211 additions and 108 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
commands/msg/reply.go
View File

@ -9,12 +9,11 @@ import (
"strings"
"git.sr.ht/~sircmpwn/getopt"
"github.com/emersion/go-imap"
"github.com/emersion/go-message"
_ "github.com/emersion/go-message/charset"
"github.com/emersion/go-message/mail"
"git.sr.ht/~sircmpwn/aerc/lib"
"git.sr.ht/~sircmpwn/aerc/models"
"git.sr.ht/~sircmpwn/aerc/widgets"
)
@ -67,7 +66,7 @@ func (_ reply) Execute(aerc *widgets.Aerc, args []string) error {
var (
to []string
cc []string
toList []*imap.Address
toList []*models.Address
)
if args[0] == "reply" {
if len(msg.Envelope.ReplyTo) != 0 {
@ -76,24 +75,23 @@ func (_ reply) Execute(aerc *widgets.Aerc, args []string) error {
toList = msg.Envelope.From
}
for _, addr := range toList {
if addr.PersonalName != "" {
if addr.Name != "" {
to = append(to, fmt.Sprintf("%s <%s@%s>",
addr.PersonalName, addr.MailboxName, addr.HostName))
addr.Name, addr.Mailbox, addr.Host))
} else {
to = append(to, fmt.Sprintf("<%s@%s>",
addr.MailboxName, addr.HostName))
to = append(to, fmt.Sprintf("<%s@%s>", addr.Mailbox, addr.Host))
}
}
if replyAll {
for _, addr := range msg.Envelope.Cc {
cc = append(cc, lib.FormatAddress(addr))
cc = append(cc, addr.Format())
}
for _, addr := range msg.Envelope.To {
address := fmt.Sprintf("%s@%s", addr.MailboxName, addr.HostName)
address := fmt.Sprintf("%s@%s", addr.Mailbox, addr.Host)
if address == us.Address {
continue
}
to = append(to, lib.FormatAddress(addr))
to = append(to, addr.Format())
}
}
}
@ -163,7 +161,7 @@ func (_ reply) Execute(aerc *widgets.Aerc, args []string) error {
go composer.SetContents(pipeout)
// TODO: Let user customize the date format used here
io.WriteString(pipein, fmt.Sprintf("Forwarded message from %s on %s:\n\n",
msg.Envelope.From[0].PersonalName,
msg.Envelope.From[0].Name,
msg.Envelope.Date.Format("Mon Jan 2, 2006 at 3:04 PM")))
for scanner.Scan() {
io.WriteString(pipein, fmt.Sprintf("%s\n", scanner.Text()))
@ -176,7 +174,7 @@ func (_ reply) Execute(aerc *widgets.Aerc, args []string) error {
if quote {
var (
path []int
part *imap.BodyStructure
part *models.BodyStructure
)
if len(msg.BodyStructure.Parts) != 0 {
part, path = findPlaintext(msg.BodyStructure, path)
@ -212,7 +210,7 @@ func (_ reply) Execute(aerc *widgets.Aerc, args []string) error {
// TODO: Let user customize the date format used here
io.WriteString(pipein, fmt.Sprintf("On %s %s wrote:\n",
msg.Envelope.Date.Format("Mon Jan 2, 2006 at 3:04 PM"),
msg.Envelope.From[0].PersonalName))
msg.Envelope.From[0].Name))
for scanner.Scan() {
io.WriteString(pipein, fmt.Sprintf("> %s\n", scanner.Text()))
}
@ -228,8 +226,8 @@ func (_ reply) Execute(aerc *widgets.Aerc, args []string) error {
return nil
}
func findPlaintext(bs *imap.BodyStructure,
path []int) (*imap.BodyStructure, []int) {
func findPlaintext(bs *models.BodyStructure,
path []int) (*models.BodyStructure, []int) {
for i, part := range bs.Parts {
cur := append(path, i+1)

40
lib/address.go
View File

@ -1,40 +0,0 @@
package lib
import (
"bytes"
"fmt"
"regexp"
"strings"
"github.com/emersion/go-imap"
)
var (
atom *regexp.Regexp = regexp.MustCompile("^[a-z0-9!#$%7'*+-/=?^_`{}|~ ]+$")
)
func FormatAddresses(addrs []*imap.Address) string {
val := bytes.Buffer{}
for i, addr := range addrs {
val.WriteString(FormatAddress(addr))
if i != len(addrs)-1 {
val.WriteString(", ")
}
}
return val.String()
}
func FormatAddress(addr *imap.Address) string {
if addr.PersonalName != "" {
if atom.MatchString(addr.PersonalName) {
return fmt.Sprintf("%s <%s@%s>",
addr.PersonalName, addr.MailboxName, addr.HostName)
} else {
return fmt.Sprintf("\"%s\" <%s@%s>",
strings.ReplaceAll(addr.PersonalName, "\"", "'"),
addr.MailboxName, addr.HostName)
}
} else {
return fmt.Sprintf("<%s@%s>", addr.MailboxName, addr.HostName)
}
}

46
lib/indexformat.go
View File

@ -6,8 +6,6 @@ import (
"strings"
"unicode"
"github.com/emersion/go-imap"
"git.sr.ht/~sircmpwn/aerc/config"
"git.sr.ht/~sircmpwn/aerc/models"
)
@ -70,10 +68,9 @@ func ParseIndexFormat(conf *config.AercConfig, number int,
}
addr := msg.Envelope.From[0]
retval = append(retval, 's')
args = append(args, fmt.Sprintf("%s@%s", addr.MailboxName,
addr.HostName))
args = append(args, fmt.Sprintf("%s@%s", addr.Mailbox, addr.Host))
case 'A':
var addr *imap.Address
var addr *models.Address
if len(msg.Envelope.ReplyTo) == 0 {
if len(msg.Envelope.From) == 0 {
return "", nil,
@ -85,8 +82,7 @@ func ParseIndexFormat(conf *config.AercConfig, number int,
addr = msg.Envelope.ReplyTo[0]
}
retval = append(retval, 's')
args = append(args, fmt.Sprintf("%s@%s", addr.MailboxName,
addr.HostName))
args = append(args, fmt.Sprintf("%s@%s", addr.Mailbox, addr.Host))
case 'C':
retval = append(retval, 'd')
args = append(args, number)
@ -100,7 +96,7 @@ func ParseIndexFormat(conf *config.AercConfig, number int,
if len(msg.Envelope.From) == 0 {
return "", nil, errors.New("found no address for sender")
}
addr := FormatAddress(msg.Envelope.From[0])
addr := msg.Envelope.From[0].Format()
retval = append(retval, 's')
args = append(args, addr)
case 'F':
@ -111,11 +107,10 @@ func ParseIndexFormat(conf *config.AercConfig, number int,
// TODO: handle case when sender is current user. Then
// use recipient's name
var val string
if addr.PersonalName != "" {
val = addr.PersonalName
if addr.Name != "" {
val = addr.Name
} else {
val = fmt.Sprintf("%s@%s",
addr.MailboxName, addr.HostName)
val = fmt.Sprintf("%s@%s", addr.Mailbox, addr.Host)
}
retval = append(retval, 's')
args = append(args, val)
@ -129,20 +124,19 @@ func ParseIndexFormat(conf *config.AercConfig, number int,
}
addr := msg.Envelope.From[0]
var val string
if addr.PersonalName != "" {
val = addr.PersonalName
if addr.Name != "" {
val = addr.Name
} else {
val = fmt.Sprintf("%s@%s",
addr.MailboxName, addr.HostName)
val = fmt.Sprintf("%s@%s", addr.Mailbox, addr.Host)
}
retval = append(retval, 's')
args = append(args, val)
case 'r':
addrs := FormatAddresses(msg.Envelope.To)
addrs := models.FormatAddresses(msg.Envelope.To)
retval = append(retval, 's')
args = append(args, addrs)
case 'R':
addrs := FormatAddresses(msg.Envelope.Cc)
addrs := models.FormatAddresses(msg.Envelope.Cc)
retval = append(retval, 's')
args = append(args, addrs)
case 's':
@ -154,16 +148,16 @@ func ParseIndexFormat(conf *config.AercConfig, number int,
}
addr := msg.Envelope.From[0]
retval = append(retval, 's')
args = append(args, addr.MailboxName)
args = append(args, addr.Mailbox)
case 'v':
if len(msg.Envelope.From) == 0 {
return "", nil, errors.New("found no address for sender")
}
addr := msg.Envelope.From[0]
// check if message is from current user
if addr.PersonalName != "" {
if addr.Name != "" {
retval = append(retval, 's')
args = append(args, strings.Split(addr.PersonalName, " ")[0])
args = append(args, strings.Split(addr.Name, " ")[0])
}
case 'Z':
// calculate all flags
@ -171,18 +165,18 @@ func ParseIndexFormat(conf *config.AercConfig, number int,
var delFlag = ""
var flaggedFlag = ""
for _, flag := range msg.Flags {
if flag == imap.SeenFlag {
if flag == models.SeenFlag {
readFlag = "O" // message is old
} else if flag == imap.RecentFlag {
} else if flag == models.RecentFlag {
readFlag = "N" // message is new
} else if flag == imap.AnsweredFlag {
} else if flag == models.AnsweredFlag {
readFlag = "r" // message has been replied to
}
if flag == imap.DeletedFlag {
if flag == models.DeletedFlag {
delFlag = "D"
// TODO: check if attachments
}
if flag == imap.FlaggedFlag {
if flag == models.FlaggedFlag {
flaggedFlag = "!"
}
// TODO: check gpg stuff

88
models/models.go
View File

@ -1,13 +1,37 @@
package models
import (
"bytes"
"fmt"
"io"
"regexp"
"strings"
"time"
"github.com/emersion/go-imap"
"github.com/emersion/go-message/mail"
)
// Flag is an abstraction around the different flags which can be present in
// different email backends and represents a flag that we use in the UI.
type Flag int
const (
// SeenFlag marks a message as having been seen previously
SeenFlag Flag = iota
// RecentFlag marks a message as being recent
RecentFlag
// AnsweredFlag marks a message as having been replied to
AnsweredFlag
// DeletedFlag marks a message as having been deleted
DeletedFlag
// FlaggedFlag marks a message with a user flag
FlaggedFlag
)
type Directory struct {
Name string
Attributes []string
@ -30,9 +54,9 @@ type DirectoryInfo struct {
// A MessageInfo holds information about the structure of a message
type MessageInfo struct {
BodyStructure *imap.BodyStructure
Envelope *imap.Envelope
Flags []string
BodyStructure *BodyStructure
Envelope *Envelope
Flags []Flag
InternalDate time.Time
RFC822Headers *mail.Header
Size uint32
@ -50,3 +74,59 @@ type FullMessage struct {
Reader io.Reader
Uid uint32
}
type BodyStructure struct {
MIMEType string
MIMESubType string
Params map[string]string
Description string
Encoding string
Parts []*BodyStructure
Disposition string
DispositionParams map[string]string
}
type Envelope struct {
Date time.Time
Subject string
From []*Address
ReplyTo []*Address
To []*Address
Cc []*Address
Bcc []*Address
MessageId string
}
type Address struct {
Name string
Mailbox string
Host string
}
var atom *regexp.Regexp = regexp.MustCompile("^[a-z0-9!#$%7'*+-/=?^_`{}|~ ]+$")
func (a Address) Format() string {
if a.Name != "" {
if atom.MatchString(a.Name) {
return fmt.Sprintf("%s <%s@%s>", a.Name, a.Mailbox, a.Host)
} else {
return fmt.Sprintf("\"%s\" <%s@%s>",
strings.ReplaceAll(a.Name, "\"", "'"),
a.Mailbox, a.Host)
}
} else {
return fmt.Sprintf("<%s@%s>", a.Mailbox, a.Host)
}
}
// FormatAddresses formats a list of addresses, separating each by a comma
func FormatAddresses(addrs []*Address) string {
val := bytes.Buffer{}
for i, addr := range addrs {
val.WriteString(addr.Format())
if i != len(addrs)-1 {
val.WriteString(", ")
}
}
return val.String()
}

3
widgets/msglist.go
View File

@ -4,7 +4,6 @@ import (
"fmt"
"log"
"github.com/emersion/go-imap"
"github.com/gdamore/tcell"
"github.com/mattn/go-runewidth"
@ -86,7 +85,7 @@ func (ml *MessageList) Draw(ctx *ui.Context) {
// unread message
seen := false
for _, flag := range msg.Flags {
if flag == imap.SeenFlag {
if flag == models.SeenFlag {
seen = true
}
}

17
widgets/msgviewer.go
View File

@ -9,7 +9,6 @@ import (
"strings"
"github.com/danwakefield/fnmatch"
"github.com/emersion/go-imap"
"github.com/emersion/go-message"
_ "github.com/emersion/go-message/charset"
"github.com/emersion/go-message/mail"
@ -66,12 +65,12 @@ func NewMessageViewer(acct *AccountView, conf *config.AercConfig,
headers.AddChild(
&HeaderView{
Name: "From",
Value: lib.FormatAddresses(msg.Envelope.From),
Value: models.FormatAddresses(msg.Envelope.From),
}).At(0, 0)
headers.AddChild(
&HeaderView{
Name: "To",
Value: lib.FormatAddresses(msg.Envelope.To),
Value: models.FormatAddresses(msg.Envelope.To),
}).At(0, 1)
headers.AddChild(
&HeaderView{
@ -112,7 +111,7 @@ handle_error:
}
func enumerateParts(conf *config.AercConfig, store *lib.MessageStore,
msg *models.MessageInfo, body *imap.BodyStructure,
msg *models.MessageInfo, body *models.BodyStructure,
showHeaders bool, index []int) ([]*PartViewer, error) {
var parts []*PartViewer
@ -324,7 +323,7 @@ type PartViewer struct {
msg *models.MessageInfo
pager *exec.Cmd
pagerin io.WriteCloser
part *imap.BodyStructure
part *models.BodyStructure
showHeaders bool
sink io.WriteCloser
source io.Reader
@ -334,7 +333,7 @@ type PartViewer struct {
func NewPartViewer(conf *config.AercConfig,
store *lib.MessageStore, msg *models.MessageInfo,
part *imap.BodyStructure, showHeaders bool,
part *models.BodyStructure, showHeaders bool,
index []int) (*PartViewer, error) {
var (
@ -365,11 +364,11 @@ func NewPartViewer(conf *config.AercConfig,
case "subject":
header = msg.Envelope.Subject
case "from":
header = lib.FormatAddresses(msg.Envelope.From)
header = models.FormatAddresses(msg.Envelope.From)
case "to":
header = lib.FormatAddresses(msg.Envelope.To)
header = models.FormatAddresses(msg.Envelope.To)
case "cc":
header = lib.FormatAddresses(msg.Envelope.Cc)
header = models.FormatAddresses(msg.Envelope.Cc)
}
if f.Regex.Match([]byte(header)) {
filter = exec.Command("sh", "-c", f.Command)

6
widgets/providesmessage.go
View File

@ -1,8 +1,6 @@
package widgets
import (
"github.com/emersion/go-imap"
"git.sr.ht/~sircmpwn/aerc/lib"
"git.sr.ht/~sircmpwn/aerc/lib/ui"
"git.sr.ht/~sircmpwn/aerc/models"
@ -10,8 +8,8 @@ import (
type PartInfo struct {
Index []int
Msg *types.MessageInfo
Part *imap.BodyStructure
Msg *models.MessageInfo
Part *models.BodyStructure
Store *lib.MessageStore
}

10
worker/imap/fetch.go
View File

@ -82,9 +82,9 @@ func (imapw *IMAPWorker) handleFetchMessages(
imapw.worker.PostMessage(&types.MessageInfo{
Message: types.RespondTo(msg),
Info: &models.MessageInfo{
BodyStructure: _msg.BodyStructure,
Envelope: _msg.Envelope,
Flags: _msg.Flags,
BodyStructure: translateBodyStructure(_msg.BodyStructure),
Envelope: translateEnvelope(_msg.Envelope),
Flags: translateFlags(_msg.Flags),
InternalDate: _msg.InternalDate,
RFC822Headers: header,
Uid: _msg.Uid,
@ -103,7 +103,7 @@ func (imapw *IMAPWorker) handleFetchMessages(
imapw.worker.PostMessage(&types.MessageInfo{
Message: types.RespondTo(msg),
Info: &models.MessageInfo{
Flags: _msg.Flags,
Flags: translateFlags(_msg.Flags),
Uid: _msg.Uid,
},
}, nil)
@ -120,7 +120,7 @@ func (imapw *IMAPWorker) handleFetchMessages(
imapw.worker.PostMessage(&types.MessageInfo{
Message: types.RespondTo(msg),
Info: &models.MessageInfo{
Flags: _msg.Flags,
Flags: translateFlags(_msg.Flags),
Uid: _msg.Uid,
},
}, nil)

75
worker/imap/imap.go
View File

@ -2,6 +2,8 @@ package imap
import (
"github.com/emersion/go-imap"
"git.sr.ht/~sircmpwn/aerc/models"
)
func toSeqSet(uids []uint32) *imap.SeqSet {
@ -11,3 +13,76 @@ func toSeqSet(uids []uint32) *imap.SeqSet {
}
return &set
}
func translateBodyStructure(bs *imap.BodyStructure) *models.BodyStructure {
if bs == nil {
return nil
}
var parts []*models.BodyStructure
for _, part := range bs.Parts {
parts = append(parts, translateBodyStructure(part))
}
return &models.BodyStructure{
MIMEType: bs.MIMEType,
MIMESubType: bs.MIMESubType,
Params: bs.Params,
Description: bs.Description,
Encoding: bs.Encoding,
Parts: parts,
Disposition: bs.Disposition,
DispositionParams: bs.DispositionParams,
}
}
func translateEnvelope(e *imap.Envelope) *models.Envelope {
if e == nil {
return nil
}
return &models.Envelope{
Date: e.Date,
Subject: e.Subject,
From: translateAddresses(e.From),
ReplyTo: translateAddresses(e.ReplyTo),
To: translateAddresses(e.To),
Cc: translateAddresses(e.Cc),
Bcc: translateAddresses(e.Bcc),
MessageId: e.MessageId,
}
}
func translateAddress(a *imap.Address) *models.Address {
if a == nil {
return nil
}
return &models.Address{
Name: a.PersonalName,
Mailbox: a.MailboxName,
Host: a.HostName,
}
}
func translateAddresses(addrs []*imap.Address) []*models.Address {
var converted []*models.Address
for _, addr := range addrs {
converted = append(converted, translateAddress(addr))
}
return converted
}
var flagMap = map[string]models.Flag{
imap.SeenFlag: models.SeenFlag,
imap.RecentFlag: models.RecentFlag,
imap.AnsweredFlag: models.AnsweredFlag,
imap.DeletedFlag: models.DeletedFlag,
imap.FlaggedFlag: models.FlaggedFlag,
}
func translateFlags(imapFlags []string) []models.Flag {
var flags []models.Flag
for _, imapFlag := range imapFlags {
if flag, ok := flagMap[imapFlag]; ok {
flags = append(flags, flag)
}
}
return flags
}

6
worker/imap/worker.go
View File

@ -187,9 +187,9 @@ func (w *IMAPWorker) handleImapUpdate(update client.Update) {
}
w.worker.PostMessage(&types.MessageInfo{
Info: &models.MessageInfo{
BodyStructure: msg.BodyStructure,
Envelope: msg.Envelope,
Flags: msg.Flags,
BodyStructure: translateBodyStructure(msg.BodyStructure),
Envelope: translateEnvelope(msg.Envelope),
Flags: translateFlags(msg.Flags),
InternalDate: msg.InternalDate,
Uid: msg.Uid,
},