aerc/config/config.go

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package config
import (
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"errors"
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"fmt"
"log"
"net/url"
"os"
"os/exec"
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"path"
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"regexp"
"sort"
"strconv"
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"strings"
"time"
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"unicode"
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"github.com/gdamore/tcell/v2"
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"github.com/go-ini/ini"
"github.com/imdario/mergo"
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"github.com/kyoh86/xdg"
"github.com/mitchellh/go-homedir"
"git.sr.ht/~rjarry/aerc/lib/templates"
"git.sr.ht/~rjarry/aerc/logging"
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)
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type GeneralConfig struct {
DefaultSavePath string `ini:"default-save-path"`
PgpProvider string `ini:"pgp-provider"`
UnsafeAccountsConf bool `ini:"unsafe-accounts-conf"`
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}
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type UIConfig struct {
IndexFormat string `ini:"index-format"`
TimestampFormat string `ini:"timestamp-format"`
ThisDayTimeFormat string `ini:"this-day-time-format"`
ThisWeekTimeFormat string `ini:"this-week-time-format"`
ThisYearTimeFormat string `ini:"this-year-time-format"`
ShowHeaders []string `delim:","`
RenderAccountTabs string `ini:"render-account-tabs"`
PinnedTabMarker string `ini:"pinned-tab-marker"`
SidebarWidth int `ini:"sidebar-width"`
PreviewHeight int `ini:"preview-height"`
EmptyMessage string `ini:"empty-message"`
EmptyDirlist string `ini:"empty-dirlist"`
MouseEnabled bool `ini:"mouse-enabled"`
ThreadingEnabled bool `ini:"threading-enabled"`
ForceClientThreads bool `ini:"force-client-threads"`
ClientThreadsDelay time.Duration `ini:"client-threads-delay"`
FuzzyComplete bool `ini:"fuzzy-complete"`
NewMessageBell bool `ini:"new-message-bell"`
Spinner string `ini:"spinner"`
SpinnerDelimiter string `ini:"spinner-delimiter"`
IconUnencrypted string `ini:"icon-unencrypted"`
IconEncrypted string `ini:"icon-encrypted"`
IconSigned string `ini:"icon-signed"`
IconSignedEncrypted string `ini:"icon-signed-encrypted"`
IconUnknown string `ini:"icon-unknown"`
IconInvalid string `ini:"icon-invalid"`
DirListFormat string `ini:"dirlist-format"`
DirListDelay time.Duration `ini:"dirlist-delay"`
DirListTree bool `ini:"dirlist-tree"`
DirListCollapse int `ini:"dirlist-collapse"`
Sort []string `delim:" "`
NextMessageOnDelete bool `ini:"next-message-on-delete"`
CompletionDelay time.Duration `ini:"completion-delay"`
CompletionPopovers bool `ini:"completion-popovers"`
StyleSetDirs []string `ini:"stylesets-dirs" delim:":"`
StyleSetName string `ini:"styleset-name"`
style StyleSet
// customize border appearance
BorderCharVertical rune `ini:"-"`
BorderCharHorizontal rune `ini:"-"`
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}
type ContextType int
const (
UI_CONTEXT_FOLDER ContextType = iota
UI_CONTEXT_ACCOUNT
UI_CONTEXT_SUBJECT
BIND_CONTEXT_ACCOUNT
BIND_CONTEXT_FOLDER
)
type UIConfigContext struct {
ContextType ContextType
Regex *regexp.Regexp
UiConfig UIConfig
}
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const (
FILTER_MIMETYPE = iota
FILTER_HEADER
)
type RemoteConfig struct {
Value string
PasswordCmd string
CacheCmd bool
cache string
}
func (c *RemoteConfig) parseValue() (*url.URL, error) {
return url.Parse(c.Value)
}
func (c *RemoteConfig) ConnectionString() (string, error) {
if c.Value == "" || c.PasswordCmd == "" {
return c.Value, nil
}
u, err := c.parseValue()
if err != nil {
return "", err
}
// ignore the command if a password is specified
if _, exists := u.User.Password(); exists {
return c.Value, nil
}
// don't attempt to parse the command if the url is a path (ie /usr/bin/sendmail)
if !u.IsAbs() {
return c.Value, nil
}
pw := c.cache
if pw == "" {
cmd := exec.Command("sh", "-c", c.PasswordCmd)
cmd.Stdin = os.Stdin
output, err := cmd.Output()
if err != nil {
return "", fmt.Errorf("failed to read password: %w", err)
}
pw = strings.TrimSpace(string(output))
}
u.User = url.UserPassword(u.User.Username(), pw)
if c.CacheCmd {
c.cache = pw
}
return u.String(), nil
}
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type AccountConfig struct {
Archive string
CopyTo string
Default string
Postpone string
From string
Aliases string
Name string
Source string
Folders []string
FoldersExclude []string
Params map[string]string
Outgoing RemoteConfig
SignatureFile string
SignatureCmd string
EnableFoldersSort bool `ini:"enable-folders-sort"`
FoldersSort []string `ini:"folders-sort" delim:","`
AddressBookCmd string `ini:"address-book-cmd"`
SendAsUTC bool `ini:"send-as-utc"`
// CheckMail
CheckMail time.Duration `ini:"check-mail"`
CheckMailCmd string `ini:"check-mail-cmd"`
CheckMailTimeout time.Duration `ini:"check-mail-timeout"`
CheckMailInclude []string `ini:"check-mail-include"`
CheckMailExclude []string `ini:"check-mail-exclude"`
// PGP Config
PgpKeyId string `ini:"pgp-key-id"`
PgpAutoSign bool `ini:"pgp-auto-sign"`
PgpOpportunisticEncrypt bool `ini:"pgp-opportunistic-encrypt"`
// AuthRes
TrustedAuthRes []string `ini:"trusted-authres" delim:","`
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}
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type BindingConfig struct {
Global *KeyBindings
AccountWizard *KeyBindings
Compose *KeyBindings
ComposeEditor *KeyBindings
ComposeReview *KeyBindings
MessageList *KeyBindings
MessageView *KeyBindings
MessageViewPassthrough *KeyBindings
Terminal *KeyBindings
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}
type BindingConfigContext struct {
ContextType ContextType
Regex *regexp.Regexp
Bindings *KeyBindings
BindContext string
}
type ComposeConfig struct {
Editor string `ini:"editor"`
HeaderLayout [][]string `ini:"-"`
AddressBookCmd string `ini:"address-book-cmd"`
ReplyToSelf bool `ini:"reply-to-self"`
}
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type FilterConfig struct {
FilterType int
Filter string
Command string
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Header string
Regex *regexp.Regexp
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}
type ViewerConfig struct {
Pager string
Alternatives []string
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ShowHeaders bool `ini:"show-headers"`
AlwaysShowMime bool `ini:"always-show-mime"`
ParseHttpLinks bool `ini:"parse-http-links"`
HeaderLayout [][]string `ini:"-"`
KeyPassthrough bool `ini:"-"`
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}
type StatuslineConfig struct {
RenderFormat string `ini:"render-format"`
Separator string
DisplayMode string `ini:"display-mode"`
}
type TriggersConfig struct {
NewEmail string `ini:"new-email"`
ExecuteCommand func(command []string) error
}
type TemplateConfig struct {
TemplateDirs []string `ini:"template-dirs" delim:":"`
NewMessage string `ini:"new-message"`
QuotedReply string `ini:"quoted-reply"`
Forwards string `ini:"forwards"`
}
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type AercConfig struct {
Bindings BindingConfig
ContextualBinds []BindingConfigContext
Compose ComposeConfig
Ini *ini.File `ini:"-"`
Accounts []AccountConfig `ini:"-"`
Filters []FilterConfig `ini:"-"`
Viewer ViewerConfig `ini:"-"`
Statusline StatuslineConfig `ini:"-"`
Triggers TriggersConfig `ini:"-"`
Ui UIConfig
ContextualUis []UIConfigContext
General GeneralConfig
Templates TemplateConfig
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}
// Input: TimestampFormat
// Output: timestamp-format
func mapName(raw string) string {
newstr := make([]rune, 0, len(raw))
for i, chr := range raw {
if isUpper := 'A' <= chr && chr <= 'Z'; isUpper {
if i > 0 {
newstr = append(newstr, '-')
}
}
newstr = append(newstr, unicode.ToLower(chr))
}
return string(newstr)
}
func loadAccountConfig(path string, accts []string) ([]AccountConfig, error) {
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file, err := ini.Load(path)
if err != nil {
// No config triggers account configuration wizard
return nil, nil
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}
file.NameMapper = mapName
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var accounts []AccountConfig
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for _, _sec := range file.SectionStrings() {
if _sec == "DEFAULT" {
continue
}
if len(accts) > 0 && !contains(accts, _sec) {
continue
}
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sec := file.Section(_sec)
sourceRemoteConfig := RemoteConfig{}
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account := AccountConfig{
Archive: "Archive",
Default: "INBOX",
Postpone: "Drafts",
Name: _sec,
Params: make(map[string]string),
EnableFoldersSort: true,
CheckMailTimeout: 10 * time.Second,
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}
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if err = sec.MapTo(&account); err != nil {
return nil, err
}
for key, val := range sec.KeysHash() {
switch key {
case "folders":
folders := strings.Split(val, ",")
sort.Strings(folders)
account.Folders = folders
case "folders-exclude":
folders := strings.Split(val, ",")
sort.Strings(folders)
account.FoldersExclude = folders
case "source":
sourceRemoteConfig.Value = val
case "source-cred-cmd":
sourceRemoteConfig.PasswordCmd = val
case "outgoing":
account.Outgoing.Value = val
case "outgoing-cred-cmd":
account.Outgoing.PasswordCmd = val
case "outgoing-cred-cmd-cache":
cache, err := strconv.ParseBool(val)
if err != nil {
return nil, fmt.Errorf(
"%s=%s %w", key, val, err)
}
account.Outgoing.CacheCmd = cache
case "from":
account.From = val
case "aliases":
account.Aliases = val
case "copy-to":
account.CopyTo = val
case "archive":
account.Archive = val
case "enable-folders-sort":
account.EnableFoldersSort, _ = strconv.ParseBool(val)
case "pgp-key-id":
account.PgpKeyId = val
case "pgp-auto-sign":
account.PgpAutoSign, _ = strconv.ParseBool(val)
case "pgp-opportunistic-encrypt":
account.PgpOpportunisticEncrypt, _ = strconv.ParseBool(val)
case "address-book-cmd":
account.AddressBookCmd = val
default:
if key != "name" {
account.Params[key] = val
}
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}
}
if account.Source == "" {
return nil, fmt.Errorf("Expected source for account %s", _sec)
}
if account.From == "" {
return nil, fmt.Errorf("Expected from for account %s", _sec)
}
source, err := sourceRemoteConfig.ConnectionString()
if err != nil {
return nil, fmt.Errorf("Invalid source credentials for %s: %w", _sec, err)
}
account.Source = source
_, err = account.Outgoing.parseValue()
if err != nil {
return nil, fmt.Errorf("Invalid outgoing credentials for %s: %w", _sec, err)
}
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accounts = append(accounts, account)
}
if len(accts) > 0 {
// Sort accounts struct to match the specified order, if we
// have one
if len(accounts) != len(accts) {
return nil, errors.New("account(s) not found")
}
sort.Slice(accounts, func(i, j int) bool {
return strings.ToLower(accts[i]) < strings.ToLower(accts[j])
})
}
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return accounts, nil
}
// Set at build time
var shareDir string
func buildDefaultDirs() []string {
var defaultDirs []string
prefixes := []string{
xdg.ConfigHome(),
xdg.DataHome(),
}
// Add XDG_CONFIG_HOME and XDG_DATA_HOME
for _, v := range prefixes {
if v != "" {
v, err := homedir.Expand(v)
if err != nil {
log.Println(err)
}
defaultDirs = append(defaultDirs, path.Join(v, "aerc"))
}
}
// Add custom buildtime shareDir
if shareDir != "" && shareDir != "/usr/local/share/aerc" {
shareDir, err := homedir.Expand(shareDir)
if err == nil {
defaultDirs = append(defaultDirs, shareDir)
}
}
// Add fixed fallback locations
defaultDirs = append(defaultDirs, "/usr/local/share/aerc")
defaultDirs = append(defaultDirs, "/usr/share/aerc")
return defaultDirs
}
var searchDirs = buildDefaultDirs()
func installTemplate(root, name string) error {
var err error
if _, err = os.Stat(root); os.IsNotExist(err) {
err = os.MkdirAll(root, 0o755)
if err != nil {
return err
}
}
var data []byte
for _, dir := range searchDirs {
data, err = os.ReadFile(path.Join(dir, name))
if err == nil {
break
}
}
if err != nil {
return err
}
err = os.WriteFile(path.Join(root, name), data, 0o644)
if err != nil {
return err
}
return nil
}
func (config *AercConfig) LoadConfig(file *ini.File) error {
if filters, err := file.GetSection("filters"); err == nil {
// TODO: Parse the filter more finely, e.g. parse the regex
for _, match := range filters.KeyStrings() {
cmd := filters.KeysHash()[match]
filter := FilterConfig{
Command: cmd,
Filter: match,
}
switch {
case strings.Contains(match, ",~"):
filter.FilterType = FILTER_HEADER
header := filter.Filter[:strings.Index(filter.Filter, ",")] //nolint:gocritic // guarded by strings.Contains
regex := filter.Filter[strings.Index(filter.Filter, "~")+1:]
filter.Header = strings.ToLower(header)
filter.Regex, err = regexp.Compile(regex)
if err != nil {
return err
}
case strings.ContainsRune(match, ','):
filter.FilterType = FILTER_HEADER
header := filter.Filter[:strings.Index(filter.Filter, ",")] //nolint:gocritic // guarded by strings.Contains
value := filter.Filter[strings.Index(filter.Filter, ",")+1:]
filter.Header = strings.ToLower(header)
filter.Regex, err = regexp.Compile(regexp.QuoteMeta(value))
if err != nil {
return err
}
default:
filter.FilterType = FILTER_MIMETYPE
}
config.Filters = append(config.Filters, filter)
}
}
if viewer, err := file.GetSection("viewer"); err == nil {
if err := viewer.MapTo(&config.Viewer); err != nil {
return err
}
for key, val := range viewer.KeysHash() {
switch key {
case "alternatives":
config.Viewer.Alternatives = strings.Split(val, ",")
case "header-layout":
config.Viewer.HeaderLayout = parseLayout(val)
}
}
}
if statusline, err := file.GetSection("statusline"); err == nil {
if err := statusline.MapTo(&config.Statusline); err != nil {
return err
}
}
if compose, err := file.GetSection("compose"); err == nil {
if err := compose.MapTo(&config.Compose); err != nil {
return err
}
for key, val := range compose.KeysHash() {
if key == "header-layout" {
config.Compose.HeaderLayout = parseLayout(val)
}
}
}
if ui, err := file.GetSection("ui"); err == nil {
if err := parseUiConfig(ui, &config.Ui); err != nil {
return err
}
}
for _, sectionName := range file.SectionStrings() {
if !strings.Contains(sectionName, "ui:") {
continue
}
uiSection, err := file.GetSection(sectionName)
if err != nil {
return err
}
uiSubConfig := UIConfig{}
if err := parseUiConfig(uiSection, &uiSubConfig); err != nil {
return err
}
contextualUi := UIConfigContext{
UiConfig: uiSubConfig,
}
var index int
switch {
case strings.Contains(sectionName, "~"):
index = strings.Index(sectionName, "~")
regex := string(sectionName[index+1:])
contextualUi.Regex, err = regexp.Compile(regex)
if err != nil {
return err
}
case strings.Contains(sectionName, "="):
index = strings.Index(sectionName, "=")
value := string(sectionName[index+1:])
contextualUi.Regex, err = regexp.Compile(regexp.QuoteMeta(value))
if err != nil {
return err
}
default:
return fmt.Errorf("Invalid Ui Context regex in %s", sectionName)
}
switch sectionName[3:index] {
case "account":
contextualUi.ContextType = UI_CONTEXT_ACCOUNT
case "folder":
contextualUi.ContextType = UI_CONTEXT_FOLDER
case "subject":
contextualUi.ContextType = UI_CONTEXT_SUBJECT
default:
return fmt.Errorf("Unknown Contextual Ui Section: %s", sectionName)
}
config.ContextualUis = append(config.ContextualUis, contextualUi)
}
if triggers, err := file.GetSection("triggers"); err == nil {
if err := triggers.MapTo(&config.Triggers); err != nil {
return err
}
}
if templatesSec, err := file.GetSection("templates"); err == nil {
if err := templatesSec.MapTo(&config.Templates); err != nil {
return err
}
templateDirs := templatesSec.Key("template-dirs").String()
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if templateDirs != "" {
config.Templates.TemplateDirs = strings.Split(templateDirs, ":")
}
}
// append default paths to template-dirs and styleset-dirs
for _, dir := range searchDirs {
config.Ui.StyleSetDirs = append(
config.Ui.StyleSetDirs, path.Join(dir, "stylesets"),
)
config.Templates.TemplateDirs = append(
config.Templates.TemplateDirs, path.Join(dir, "templates"),
)
}
// we want to fail during startup if the templates are not ok
// hence we do dummy executes here
t := config.Templates
if err := templates.CheckTemplate(t.NewMessage, t.TemplateDirs); err != nil {
return err
}
if err := templates.CheckTemplate(t.QuotedReply, t.TemplateDirs); err != nil {
return err
}
if err := templates.CheckTemplate(t.Forwards, t.TemplateDirs); err != nil {
return err
}
if err := config.Ui.loadStyleSet(
config.Ui.StyleSetDirs); err != nil {
return err
}
for idx, contextualUi := range config.ContextualUis {
if contextualUi.UiConfig.StyleSetName == "" &&
len(contextualUi.UiConfig.StyleSetDirs) == 0 {
continue // no need to do anything if nothing is overridden
}
// fill in the missing part from the base
if contextualUi.UiConfig.StyleSetName == "" {
config.ContextualUis[idx].UiConfig.StyleSetName = config.Ui.StyleSetName
} else if len(contextualUi.UiConfig.StyleSetDirs) == 0 {
config.ContextualUis[idx].UiConfig.StyleSetDirs = config.Ui.StyleSetDirs
}
// since at least one of them has changed, load the styleset
if err := config.ContextualUis[idx].UiConfig.loadStyleSet(
config.ContextualUis[idx].UiConfig.StyleSetDirs); err != nil {
return err
}
}
return nil
}
func parseUiConfig(section *ini.Section, config *UIConfig) error {
if err := section.MapTo(config); err != nil {
return err
}
if key, err := section.GetKey("border-char-vertical"); err == nil {
chars := []rune(key.String())
if len(chars) != 1 {
return fmt.Errorf("%v must be one and only one character", key)
}
config.BorderCharVertical = chars[0]
}
if key, err := section.GetKey("border-char-horizontal"); err == nil {
chars := []rune(key.String())
if len(chars) != 1 {
return fmt.Errorf("%v must be one and only one character", key)
}
config.BorderCharHorizontal = chars[0]
}
// Values with type=time.Duration must be explicitly set. If these
// values are given a default in the struct passed to ui.MapTo, which
// they are, a zero-value in the config won't overwrite the default.
if key, err := section.GetKey("dirlist-delay"); err == nil {
dur, err := key.Duration()
if err != nil {
return err
}
config.DirListDelay = dur
}
if key, err := section.GetKey("completion-delay"); err == nil {
dur, err := key.Duration()
if err != nil {
return err
}
config.CompletionDelay = dur
}
return nil
}
func validatePgpProvider(section *ini.Section) error {
m := map[string]bool{
"gpg": true,
"internal": true,
}
for key, val := range section.KeysHash() {
if key == "pgp-provider" {
if !m[strings.ToLower(val)] {
return fmt.Errorf("%v must be either 'gpg' or 'internal'", key)
}
}
}
return nil
}
func LoadConfigFromFile(root *string, accts []string) (*AercConfig, error) {
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if root == nil {
_root := path.Join(xdg.ConfigHome(), "aerc")
root = &_root
}
filename := path.Join(*root, "aerc.conf")
// if it doesn't exist copy over the template, then load
if _, err := os.Stat(filename); errors.Is(err, os.ErrNotExist) {
logging.Debugf("%s not found, installing the system default", filename)
if err := installTemplate(*root, "aerc.conf"); err != nil {
return nil, err
}
}
logging.Infof("Parsing configuration from %s", filename)
file, err := ini.LoadSources(ini.LoadOptions{
KeyValueDelimiters: "=",
}, filename)
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if err != nil {
return nil, err
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}
file.NameMapper = mapName
config := &AercConfig{
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Bindings: BindingConfig{
Global: NewKeyBindings(),
AccountWizard: NewKeyBindings(),
Compose: NewKeyBindings(),
ComposeEditor: NewKeyBindings(),
ComposeReview: NewKeyBindings(),
MessageList: NewKeyBindings(),
MessageView: NewKeyBindings(),
MessageViewPassthrough: NewKeyBindings(),
Terminal: NewKeyBindings(),
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},
ContextualBinds: []BindingConfigContext{},
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Ini: file,
General: GeneralConfig{
PgpProvider: "internal",
UnsafeAccountsConf: false,
},
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Ui: UIConfig{
IndexFormat: "%-20.20D %-17.17n %Z %s",
TimestampFormat: "2006-01-02 03:04 PM",
ThisDayTimeFormat: "",
ThisWeekTimeFormat: "",
ThisYearTimeFormat: "",
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ShowHeaders: []string{
"From", "To", "Cc", "Bcc", "Subject", "Date",
},
RenderAccountTabs: "auto",
PinnedTabMarker: "`",
SidebarWidth: 20,
PreviewHeight: 12,
EmptyMessage: "(no messages)",
EmptyDirlist: "(no folders)",
MouseEnabled: false,
ClientThreadsDelay: 50 * time.Millisecond,
NewMessageBell: true,
FuzzyComplete: false,
Spinner: "[..] , [..] , [..] , [..] , [..], [..] , [..] , [..] ",
SpinnerDelimiter: ",",
IconUnencrypted: "",
IconSigned: "[s]",
IconEncrypted: "[e]",
IconSignedEncrypted: "",
IconUnknown: "[s?]",
IconInvalid: "[s!]",
DirListFormat: "%n %>r",
DirListDelay: 200 * time.Millisecond,
NextMessageOnDelete: true,
CompletionDelay: 250 * time.Millisecond,
CompletionPopovers: true,
StyleSetDirs: []string{},
StyleSetName: "default",
// border defaults
BorderCharVertical: ' ',
BorderCharHorizontal: ' ',
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},
ContextualUis: []UIConfigContext{},
Viewer: ViewerConfig{
Pager: "less -R",
Alternatives: []string{"text/plain", "text/html"},
ShowHeaders: false,
HeaderLayout: [][]string{
{"From", "To"},
{"Cc", "Bcc"},
{"Date"},
{"Subject"},
},
ParseHttpLinks: true,
},
Statusline: StatuslineConfig{
RenderFormat: "[%a] %S %>%T",
Separator: " | ",
DisplayMode: "",
},
Compose: ComposeConfig{
HeaderLayout: [][]string{
{"To", "From"},
{"Subject"},
},
ReplyToSelf: true,
},
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Templates: TemplateConfig{
TemplateDirs: []string{},
NewMessage: "new_message",
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QuotedReply: "quoted_reply",
Forwards: "forward_as_body",
},
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}
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// These bindings are not configurable
config.Bindings.AccountWizard.ExKey = KeyStroke{
Key: tcell.KeyCtrlE,
}
quit, _ := ParseBinding("<C-q>", ":quit<Enter>")
config.Bindings.AccountWizard.Add(quit)
if err = config.LoadConfig(file); err != nil {
return nil, err
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}
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if ui, err := file.GetSection("general"); err == nil {
if err := ui.MapTo(&config.General); err != nil {
return nil, err
}
if err := validatePgpProvider(ui); err != nil {
return nil, err
}
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}
logging.Debugf("aerc.conf: [general] %#v", config.General)
logging.Debugf("aerc.conf: [ui] %#v", config.Ui)
logging.Debugf("aerc.conf: [statusline] %#v", config.Statusline)
logging.Debugf("aerc.conf: [viewer] %#v", config.Viewer)
logging.Debugf("aerc.conf: [compose] %#v", config.Compose)
logging.Debugf("aerc.conf: [filters] %#v", config.Filters)
logging.Debugf("aerc.conf: [triggers] %#v", config.Triggers)
logging.Debugf("aerc.conf: [templates] %#v", config.Templates)
filename = path.Join(*root, "accounts.conf")
if !config.General.UnsafeAccountsConf {
if err := checkConfigPerms(filename); err != nil {
return nil, err
}
}
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accountsPath := path.Join(*root, "accounts.conf")
logging.Infof("Parsing accounts configuration from %s", accountsPath)
if accounts, err := loadAccountConfig(accountsPath, accts); err != nil {
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return nil, err
} else {
config.Accounts = accounts
}
for _, acct := range config.Accounts {
logging.Debugf("accounts.conf: [%s] from = %s", acct.Name, acct.From)
}
filename = path.Join(*root, "binds.conf")
if _, err := os.Stat(filename); errors.Is(err, os.ErrNotExist) {
logging.Debugf("%s not found, installing the system default", filename)
if err := installTemplate(*root, "binds.conf"); err != nil {
return nil, err
}
}
logging.Infof("Parsing key bindings configuration from %s", filename)
binds, err := ini.Load(filename)
if err != nil {
return nil, err
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}
baseGroups := map[string]**KeyBindings{
"default": &config.Bindings.Global,
"compose": &config.Bindings.Compose,
"messages": &config.Bindings.MessageList,
"terminal": &config.Bindings.Terminal,
"view": &config.Bindings.MessageView,
"view::passthrough": &config.Bindings.MessageViewPassthrough,
"compose::editor": &config.Bindings.ComposeEditor,
"compose::review": &config.Bindings.ComposeReview,
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}
// Base Bindings
for _, sectionName := range binds.SectionStrings() {
// Handle :: delimeter
baseSectionName := strings.ReplaceAll(sectionName, "::", "////")
sections := strings.Split(baseSectionName, ":")
baseOnly := len(sections) == 1
baseSectionName = strings.ReplaceAll(sections[0], "////", "::")
group, ok := baseGroups[strings.ToLower(baseSectionName)]
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if !ok {
return nil, errors.New("Unknown keybinding group " + sectionName)
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}
if baseOnly {
err = config.LoadBinds(binds, baseSectionName, group)
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if err != nil {
return nil, err
}
}
}
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config.Bindings.Global.Globals = false
for _, contextBind := range config.ContextualBinds {
if contextBind.BindContext == "default" {
contextBind.Bindings.Globals = false
}
}
logging.Debugf("binds.conf: %#v", config.Bindings)
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return config, nil
}
func LoadBindingSection(sec *ini.Section) (*KeyBindings, error) {
bindings := NewKeyBindings()
for key, value := range sec.KeysHash() {
if key == "$ex" {
strokes, err := ParseKeyStrokes(value)
if err != nil {
return nil, err
}
if len(strokes) != 1 {
return nil, errors.New("Invalid binding")
}
bindings.ExKey = strokes[0]
continue
}
if key == "$noinherit" {
if value == "false" {
continue
}
if value != "true" {
return nil, errors.New("Invalid binding")
}
bindings.Globals = false
continue
}
binding, err := ParseBinding(key, value)
if err != nil {
return nil, err
}
bindings.Add(binding)
}
return bindings, nil
}
func (config *AercConfig) LoadBinds(binds *ini.File, baseName string, baseGroup **KeyBindings) error {
if sec, err := binds.GetSection(baseName); err == nil {
binds, err := LoadBindingSection(sec)
if err != nil {
return err
}
*baseGroup = MergeBindings(binds, *baseGroup)
}
for _, sectionName := range binds.SectionStrings() {
if !strings.Contains(sectionName, baseName+":") ||
strings.Contains(sectionName, baseName+"::") {
continue
}
bindSection, err := binds.GetSection(sectionName)
if err != nil {
return err
}
binds, err := LoadBindingSection(bindSection)
if err != nil {
return err
}
contextualBind := BindingConfigContext{
Bindings: binds,
BindContext: baseName,
}
var index int
if strings.Contains(sectionName, "=") {
index = strings.Index(sectionName, "=")
value := string(sectionName[index+1:])
contextualBind.Regex, err = regexp.Compile(value)
if err != nil {
return err
}
} else {
return fmt.Errorf("Invalid Bind Context regex in %s", sectionName)
}
switch sectionName[len(baseName)+1 : index] {
case "account":
acctName := sectionName[index+1:]
valid := false
for _, acctConf := range config.Accounts {
matches := contextualBind.Regex.FindString(acctConf.Name)
if matches != "" {
valid = true
}
}
if !valid {
logging.Warnf("binds.conf: unexistent account: %s", acctName)
continue
}
contextualBind.ContextType = BIND_CONTEXT_ACCOUNT
case "folder":
// No validation needed. If the folder doesn't exist, the binds
// never get used
contextualBind.ContextType = BIND_CONTEXT_FOLDER
default:
return fmt.Errorf("Unknown Context Bind Section: %s", sectionName)
}
config.ContextualBinds = append(config.ContextualBinds, contextualBind)
}
return nil
}
// checkConfigPerms checks for too open permissions
// printing the fix on stdout and returning an error
func checkConfigPerms(filename string) error {
info, err := os.Stat(filename)
if errors.Is(err, os.ErrNotExist) {
return nil // disregard absent files
}
if err != nil {
return err
}
perms := info.Mode().Perm()
// group or others have read access
if perms&0o44 != 0 {
fmt.Fprintf(os.Stderr, "The file %v has too open permissions.\n", filename)
fmt.Fprintln(os.Stderr, "This is a security issue (it contains passwords).")
fmt.Fprintf(os.Stderr, "To fix it, run `chmod 600 %v`\n", filename)
return errors.New("account.conf permissions too lax")
}
return nil
}
func parseLayout(layout string) [][]string {
rows := strings.Split(layout, ",")
l := make([][]string, len(rows))
for i, r := range rows {
l[i] = strings.Split(r, "|")
}
return l
}
func (ui *UIConfig) loadStyleSet(styleSetDirs []string) error {
ui.style = NewStyleSet()
err := ui.style.LoadStyleSet(ui.StyleSetName, styleSetDirs)
if err != nil {
return fmt.Errorf("Unable to load default styleset: %w", err)
}
return nil
}
func (config AercConfig) mergeContextualUi(baseUi UIConfig,
contextType ContextType, s string,
) UIConfig {
for _, contextualUi := range config.ContextualUis {
if contextualUi.ContextType != contextType {
continue
}
if !contextualUi.Regex.Match([]byte(s)) {
continue
}
err := mergo.Merge(&baseUi, contextualUi.UiConfig, mergo.WithOverride)
if err != nil {
logging.Warnf("merge ui failed: %v", err)
}
if contextualUi.UiConfig.StyleSetName != "" {
baseUi.style = contextualUi.UiConfig.style
}
return baseUi
}
return baseUi
}
func (config AercConfig) GetUiConfig(params map[ContextType]string) *UIConfig {
baseUi := config.Ui
for k, v := range params {
baseUi = config.mergeContextualUi(baseUi, k, v)
}
return &baseUi
}
func (config *AercConfig) GetContextualUIConfigs() []UIConfigContext {
return config.ContextualUis
}
func (uiConfig UIConfig) GetStyle(so StyleObject) tcell.Style {
return uiConfig.style.Get(so)
}
func (uiConfig UIConfig) GetStyleSelected(so StyleObject) tcell.Style {
return uiConfig.style.Selected(so)
}
func (uiConfig UIConfig) GetComposedStyle(base StyleObject,
styles []StyleObject,
) tcell.Style {
return uiConfig.style.Compose(base, styles)
}
func (uiConfig UIConfig) GetComposedStyleSelected(base StyleObject, styles []StyleObject) tcell.Style {
return uiConfig.style.ComposeSelected(base, styles)
}
func contains(list []string, v string) bool {
for _, item := range list {
if item == v {
return true
}
}
return false
}