aerc/config/config.go
Koni Marti 83e0e2638d msgviewer: parse and display authentication results
Parse the Authentication-Results header and display it in the message
viewer (not enabled by default). DKIM, SPF and DMARC authentication
methods are supported. Implement recommendation from RFC 7601 Sec 7.1 to
have an explicit list of trustworthy hostnames before displaying the
authentication results. Be aware that the authentication headers can be
forged.

To display the results for a specific authentication method, add the
corresponding name to the layout of headers in the viewer section of
aerc.conf, e.g. to display all three, use:

header-layout = From|To,Cc|Bcc,Date,Subject,DKIM|SPF|DMARC

More information will be displayed when "+" is appended to the
authentication method name, e.g. DKIM+ or SPF+ or DMARC+.

Also, add the trustworthy hosts per account with the trusted-authres
parameter, e.g.

trusted-authres = *

to trust every host or use regular expressions for a finer control.
Multiple hosts can be entered as a comma-separated list. Authentication
results will only be displayed when the host is listed in the
trusted-authres list.

Link: https://datatracker.ietf.org/doc/html/rfc7601
Signed-off-by: Koni Marti <koni.marti@gmail.com>
Tested-by: Tim Culverhouse <tim@timculverhouse.com>
Acked-by: Robin Jarry <robin@jarry.cc>
2022-06-09 09:42:23 +02:00

1007 lines
26 KiB
Go

package config
import (
"errors"
"fmt"
"io/ioutil"
"log"
"net/url"
"os"
"os/exec"
"path"
"regexp"
"sort"
"strconv"
"strings"
"time"
"unicode"
"github.com/gdamore/tcell/v2"
"github.com/go-ini/ini"
"github.com/imdario/mergo"
"github.com/kyoh86/xdg"
"github.com/mitchellh/go-homedir"
"git.sr.ht/~rjarry/aerc/lib/templates"
)
type GeneralConfig struct {
DefaultSavePath string `ini:"default-save-path"`
PgpProvider string `ini:"pgp-provider"`
UnsafeAccountsConf bool `ini:"unsafe-accounts-conf"`
}
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"`
FuzzyComplete bool `ini:"fuzzy-complete"`
NewMessageBell bool `ini:"new-message-bell"`
Spinner string `ini:"spinner"`
SpinnerDelimiter string `ini:"spinner-delimiter"`
DirListFormat string `ini:"dirlist-format"`
DirListDelay time.Duration `ini:"dirlist-delay"`
DirListTree bool `ini:"dirlist-tree"`
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:"-"`
}
type ContextType int
const (
UI_CONTEXT_FOLDER ContextType = iota
UI_CONTEXT_ACCOUNT
UI_CONTEXT_SUBJECT
BIND_CONTEXT_ACCOUNT
)
type UIConfigContext struct {
ContextType ContextType
Regex *regexp.Regexp
UiConfig UIConfig
}
const (
FILTER_MIMETYPE = iota
FILTER_HEADER
)
type AccountConfig struct {
Archive string
CopyTo string
Default string
Postpone string
From string
Aliases string
Name string
Source string
SourceCredCmd string
Folders []string
FoldersExclude []string
Params map[string]string
Outgoing string
OutgoingCredCmd string
SignatureFile string
SignatureCmd string
EnableFoldersSort bool `ini:"enable-folders-sort"`
FoldersSort []string `ini:"folders-sort" delim:","`
// 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:","`
}
type BindingConfig struct {
Global *KeyBindings
AccountWizard *KeyBindings
Compose *KeyBindings
ComposeEditor *KeyBindings
ComposeReview *KeyBindings
MessageList *KeyBindings
MessageView *KeyBindings
MessageViewPassthrough *KeyBindings
Terminal *KeyBindings
}
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"`
}
type FilterConfig struct {
FilterType int
Filter string
Command string
Header string
Regex *regexp.Regexp
}
type ViewerConfig struct {
Pager string
Alternatives []string
ShowHeaders bool `ini:"show-headers"`
AlwaysShowMime bool `ini:"always-show-mime"`
HeaderLayout [][]string `ini:"-"`
KeyPassthrough bool `ini:"-"`
}
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"`
}
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
}
// 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) ([]AccountConfig, error) {
file, err := ini.Load(path)
if err != nil {
// No config triggers account configuration wizard
return nil, nil
}
file.NameMapper = mapName
var accounts []AccountConfig
for _, _sec := range file.SectionStrings() {
if _sec == "DEFAULT" {
continue
}
sec := file.Section(_sec)
account := AccountConfig{
Archive: "Archive",
Default: "INBOX",
Postpone: "Drafts",
Name: _sec,
Params: make(map[string]string),
EnableFoldersSort: true,
CheckMailTimeout: 10 * time.Second,
}
if err = sec.MapTo(&account); err != nil {
return nil, err
}
for key, val := range sec.KeysHash() {
if key == "folders" {
folders := strings.Split(val, ",")
sort.Strings(folders)
account.Folders = folders
} else if key == "folders-exclude" {
folders := strings.Split(val, ",")
sort.Strings(folders)
account.FoldersExclude = folders
} else if key == "source-cred-cmd" {
account.SourceCredCmd = val
} else if key == "outgoing" {
account.Outgoing = val
} else if key == "outgoing-cred-cmd" {
account.OutgoingCredCmd = val
} else if key == "from" {
account.From = val
} else if key == "aliases" {
account.Aliases = val
} else if key == "copy-to" {
account.CopyTo = val
} else if key == "archive" {
account.Archive = val
} else if key == "enable-folders-sort" {
account.EnableFoldersSort, _ = strconv.ParseBool(val)
} else if key == "pgp-key-id" {
account.PgpKeyId = val
} else if key == "pgp-auto-sign" {
account.PgpAutoSign, _ = strconv.ParseBool(val)
} else if key == "pgp-opportunistic-encrypt" {
account.PgpOpportunisticEncrypt, _ = strconv.ParseBool(val)
} else if key != "name" {
account.Params[key] = val
}
}
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 := parseCredential(account.Source, account.SourceCredCmd)
if err != nil {
return nil, fmt.Errorf("Invalid source credentials for %s: %s", _sec, err)
}
account.Source = source
outgoing, err := parseCredential(account.Outgoing, account.OutgoingCredCmd)
if err != nil {
return nil, fmt.Errorf("Invalid outgoing credentials for %s: %s", _sec, err)
}
account.Outgoing = outgoing
accounts = append(accounts, account)
}
return accounts, nil
}
func parseCredential(cred, command string) (string, error) {
if cred == "" || command == "" {
return cred, nil
}
u, err := url.Parse(cred)
if err != nil {
return "", err
}
// ignore the command if a password is specified
if _, exists := u.User.Password(); exists {
return cred, nil
}
// don't attempt to parse the command if the url is a path (ie /usr/bin/sendmail)
if !u.IsAbs() {
return cred, nil
}
cmd := exec.Command("sh", "-c", command)
cmd.Stdin = os.Stdin
output, err := cmd.Output()
if err != nil {
return "", fmt.Errorf("failed to read password: %s", err)
}
pw := strings.TrimSpace(string(output))
u.User = url.UserPassword(u.User.Username(), pw)
return u.String(), 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, 0755)
if err != nil {
return err
}
}
var data []byte
for _, dir := range searchDirs {
data, err = ioutil.ReadFile(path.Join(dir, name))
if err == nil {
break
}
}
if err != nil {
return err
}
err = ioutil.WriteFile(path.Join(root, name), data, 0644)
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,
}
if strings.Contains(match, ",~") {
filter.FilterType = FILTER_HEADER
header := filter.Filter[:strings.Index(filter.Filter, ",")]
regex := filter.Filter[strings.Index(filter.Filter, "~")+1:]
filter.Header = strings.ToLower(header)
filter.Regex, err = regexp.Compile(regex)
if err != nil {
return err
}
} else if strings.ContainsRune(match, ',') {
filter.FilterType = FILTER_HEADER
header := filter.Filter[:strings.Index(filter.Filter, ",")]
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
}
} else {
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() {
switch key {
case "header-layout":
config.Compose.HeaderLayout = parseLayout(val)
}
}
}
if ui, err := file.GetSection("ui"); err == nil {
if err := ui.MapTo(&config.Ui); err != nil {
return err
}
if err := validateBorderChars(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 := uiSection.MapTo(&uiSubConfig); err != nil {
return err
}
if err := validateBorderChars(uiSection, &uiSubConfig); err != nil {
return err
}
contextualUi :=
UIConfigContext{
UiConfig: uiSubConfig,
}
var index int
if strings.Contains(sectionName, "~") {
index = strings.Index(sectionName, "~")
regex := string(sectionName[index+1:])
contextualUi.Regex, err = regexp.Compile(regex)
if err != nil {
return err
}
} else if 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
}
} else {
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()
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 validateBorderChars(section *ini.Section, config *UIConfig) error {
for key, val := range section.KeysHash() {
switch key {
case "border-char-vertical":
char := []rune(val)
if len(char) != 1 {
return fmt.Errorf("%v must be one and only one character", key)
}
config.BorderCharVertical = char[0]
case "border-char-horizontal":
char := []rune(val)
if len(char) != 1 {
return fmt.Errorf("%v must be one and only one character", key)
}
config.BorderCharHorizontal = char[0]
}
}
return nil
}
func validatePgpProvider(section *ini.Section) error {
m := map[string]bool{
"gpg": true,
"internal": true,
}
for key, val := range section.KeysHash() {
switch key {
case "pgp-provider":
if !m[strings.ToLower(val)] {
return fmt.Errorf("%v must be either 'gpg' or 'internal'", key)
}
}
}
return nil
}
func LoadConfigFromFile(root *string, logger *log.Logger) (*AercConfig, error) {
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) {
if err := installTemplate(*root, "aerc.conf"); err != nil {
return nil, err
}
}
file, err := ini.LoadSources(ini.LoadOptions{
KeyValueDelimiters: "=",
}, filename)
if err != nil {
return nil, err
}
file.NameMapper = mapName
config := &AercConfig{
Bindings: BindingConfig{
Global: NewKeyBindings(),
AccountWizard: NewKeyBindings(),
Compose: NewKeyBindings(),
ComposeEditor: NewKeyBindings(),
ComposeReview: NewKeyBindings(),
MessageList: NewKeyBindings(),
MessageView: NewKeyBindings(),
MessageViewPassthrough: NewKeyBindings(),
Terminal: NewKeyBindings(),
},
ContextualBinds: []BindingConfigContext{},
Ini: file,
General: GeneralConfig{
PgpProvider: "internal",
UnsafeAccountsConf: false,
},
Ui: UIConfig{
IndexFormat: "%D %-17.17n %s",
TimestampFormat: "2006-01-02 03:04 PM",
ThisDayTimeFormat: "",
ThisWeekTimeFormat: "",
ThisYearTimeFormat: "",
ShowHeaders: []string{
"From", "To", "Cc", "Bcc", "Subject", "Date",
},
RenderAccountTabs: "auto",
PinnedTabMarker: "`",
SidebarWidth: 20,
PreviewHeight: 12,
EmptyMessage: "(no messages)",
EmptyDirlist: "(no folders)",
MouseEnabled: false,
NewMessageBell: true,
FuzzyComplete: false,
Spinner: "[..] , [..] , [..] , [..] , [..], [..] , [..] , [..] ",
SpinnerDelimiter: ",",
DirListFormat: "%n %>r",
DirListDelay: 200 * time.Millisecond,
NextMessageOnDelete: true,
CompletionDelay: 250 * time.Millisecond,
CompletionPopovers: true,
StyleSetDirs: []string{},
StyleSetName: "default",
// border defaults
BorderCharVertical: ' ',
BorderCharHorizontal: ' ',
},
ContextualUis: []UIConfigContext{},
Viewer: ViewerConfig{
Pager: "less -R",
Alternatives: []string{"text/plain", "text/html"},
ShowHeaders: false,
HeaderLayout: [][]string{
{"From", "To"},
{"Cc", "Bcc"},
{"Date"},
{"Subject"},
},
},
Statusline: StatuslineConfig{
RenderFormat: "[%a] %S %>%T",
Separator: " | ",
DisplayMode: "",
},
Compose: ComposeConfig{
HeaderLayout: [][]string{
{"To", "From"},
{"Subject"},
},
ReplyToSelf: true,
},
Templates: TemplateConfig{
TemplateDirs: []string{},
NewMessage: "new_message",
QuotedReply: "quoted_reply",
Forwards: "forward_as_body",
},
}
// 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
}
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
}
}
filename = path.Join(*root, "accounts.conf")
if !config.General.UnsafeAccountsConf {
if err := checkConfigPerms(filename); err != nil {
return nil, err
}
}
accountsPath := path.Join(*root, "accounts.conf")
if accounts, err := loadAccountConfig(accountsPath); err != nil {
return nil, err
} else {
config.Accounts = accounts
}
filename = path.Join(*root, "binds.conf")
binds, err := ini.Load(filename)
if err != nil {
if err := installTemplate(*root, "binds.conf"); err != nil {
return nil, err
}
if binds, err = ini.Load(filename); err != nil {
return nil, err
}
}
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,
}
// Base Bindings
for _, sectionName := range binds.SectionStrings() {
// Handle :: delimeter
baseSectionName := strings.Replace(sectionName, "::", "////", -1)
sections := strings.Split(baseSectionName, ":")
baseOnly := len(sections) == 1
baseSectionName = strings.Replace(sections[0], "////", "::", -1)
group, ok := baseGroups[strings.ToLower(baseSectionName)]
if !ok {
return nil, errors.New("Unknown keybinding group " + sectionName)
}
if baseOnly {
err = config.LoadBinds(binds, baseSectionName, group, logger)
if err != nil {
return nil, err
}
}
}
config.Bindings.Global.Globals = false
for _, contextBind := range config.ContextualBinds {
if contextBind.BindContext == "default" {
contextBind.Bindings.Globals = false
}
}
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, logger *log.Logger) 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 {
logger.Printf("Tried to define binds for unexistent account: %v\n", acctName)
continue
}
contextualBind.ContextType = BIND_CONTEXT_ACCOUNT
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&044 != 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: %s", 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
}
mergo.Merge(&baseUi, contextualUi.UiConfig, mergo.WithOverride)
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 (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)
}