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mirror of https://github.com/makew0rld/amfora.git synced 2024-11-03 02:37:23 -05:00
amfora/config/config.go
2020-12-31 21:59:26 -05:00

412 lines
12 KiB
Go

// Package config initializes all files required for Amfora, even those used by
// other packages. It also reads in the config file and initializes a Viper and
// the theme
//nolint:golint,goerr113
package config
import (
"fmt"
"os"
"path/filepath"
"runtime"
"strings"
"github.com/gdamore/tcell/v2"
"github.com/makeworld-the-better-one/amfora/cache"
homedir "github.com/mitchellh/go-homedir"
"github.com/rkoesters/xdg/basedir"
"github.com/rkoesters/xdg/userdirs"
"github.com/spf13/viper"
"gitlab.com/tslocum/cview"
)
var amforaAppData string // Where amfora files are stored on Windows - cached here
var configDir string
var configPath string
var NewTabPath string
var CustomNewTab bool
var TofuStore = viper.New()
var tofuDBDir string
var tofuDBPath string
// Bookmarks
var BkmkStore = viper.New()
var bkmkDir string
var bkmkPath string
var DownloadsDir string
var TempDownloadsDir string
// Subscriptions
var subscriptionDir string
var SubscriptionPath string
// Command for opening HTTP(S) URLs in the browser, from "a-general.http" in config.
var HTTPCommand []string
type MediaHandler struct {
Cmd []string
NoPrompt bool
Stream bool
}
var MediaHandlers = make(map[string]MediaHandler)
// Controlled by "a-general.scrollbar" in config
// Defaults to ScrollBarAuto on an invalid value
var ScrollBar cview.ScrollBarVisibility
func Init() error {
// *** Set paths ***
home, err := homedir.Dir()
if err != nil {
return err
}
// Store AppData path
if runtime.GOOS == "windows" { //nolint:goconst
appdata, ok := os.LookupEnv("APPDATA")
if ok {
amforaAppData = filepath.Join(appdata, "amfora")
} else {
amforaAppData = filepath.Join(home, filepath.FromSlash("AppData/Roaming/amfora/"))
}
}
// Store config directory and file paths
if runtime.GOOS == "windows" {
configDir = amforaAppData
} else {
// Unix / POSIX system
configDir = filepath.Join(basedir.ConfigHome, "amfora")
}
configPath = filepath.Join(configDir, "config.toml")
// Search for a custom new tab
NewTabPath = filepath.Join(configDir, "newtab.gmi")
CustomNewTab = false
if _, err := os.Stat(NewTabPath); err == nil {
CustomNewTab = true
}
// Store TOFU db directory and file paths
if runtime.GOOS == "windows" {
// Windows just stores it in APPDATA along with other stuff
tofuDBDir = amforaAppData
} else {
// XDG cache dir on POSIX systems
tofuDBDir = filepath.Join(basedir.CacheHome, "amfora")
}
tofuDBPath = filepath.Join(tofuDBDir, "tofu.toml")
// Store bookmarks dir and path
if runtime.GOOS == "windows" {
// Windows just keeps it in APPDATA along with other Amfora files
bkmkDir = amforaAppData
} else {
// XDG data dir on POSIX systems
bkmkDir = filepath.Join(basedir.DataHome, "amfora")
}
bkmkPath = filepath.Join(bkmkDir, "bookmarks.toml")
// Feeds dir and path
if runtime.GOOS == "windows" {
// In APPDATA beside other Amfora files
subscriptionDir = amforaAppData
} else {
// XDG data dir on POSIX systems
xdg_data, ok := os.LookupEnv("XDG_DATA_HOME")
if ok && strings.TrimSpace(xdg_data) != "" {
subscriptionDir = filepath.Join(xdg_data, "amfora")
} else {
// Default to ~/.local/share/amfora
subscriptionDir = filepath.Join(home, ".local", "share", "amfora")
}
}
SubscriptionPath = filepath.Join(subscriptionDir, "subscriptions.json")
// *** Create necessary files and folders ***
// Config
err = os.MkdirAll(configDir, 0755)
if err != nil {
return err
}
f, err := os.OpenFile(configPath, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0666)
if err == nil {
// Config file doesn't exist yet, write the default one
_, err = f.Write(defaultConf)
if err != nil {
f.Close()
return err
}
f.Close()
}
// TOFU
err = os.MkdirAll(tofuDBDir, 0755)
if err != nil {
return err
}
f, err = os.OpenFile(tofuDBPath, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0666)
if err == nil {
f.Close()
}
// Bookmarks
err = os.MkdirAll(bkmkDir, 0755)
if err != nil {
return err
}
f, err = os.OpenFile(bkmkPath, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0666)
if err == nil {
f.Close()
}
// Feeds
err = os.MkdirAll(subscriptionDir, 0755)
if err != nil {
return err
}
// *** Setup vipers ***
TofuStore.SetConfigFile(tofuDBPath)
TofuStore.SetConfigType("toml")
err = TofuStore.ReadInConfig()
if err != nil {
return err
}
BkmkStore.SetConfigFile(bkmkPath)
BkmkStore.SetConfigType("toml")
err = BkmkStore.ReadInConfig()
if err != nil {
return err
}
BkmkStore.Set("DO NOT TOUCH", true)
err = BkmkStore.WriteConfig()
if err != nil {
return err
}
// Setup main config
viper.SetDefault("a-general.home", "gemini://gemini.circumlunar.space")
viper.SetDefault("a-general.auto_redirect", false)
viper.SetDefault("a-general.http", "default")
viper.SetDefault("a-general.search", "gemini://gus.guru/search")
viper.SetDefault("a-general.color", true)
viper.SetDefault("a-general.ansi", true)
viper.SetDefault("a-general.bullets", true)
viper.SetDefault("a-general.show_link", false)
viper.SetDefault("a-general.left_margin", 0.15)
viper.SetDefault("a-general.max_width", 100)
viper.SetDefault("a-general.downloads", "")
viper.SetDefault("a-general.temp_downloads", "")
viper.SetDefault("a-general.page_max_size", 2097152)
viper.SetDefault("a-general.page_max_time", 10)
viper.SetDefault("a-general.emoji_favicons", false)
viper.SetDefault("a-general.scrollbar", "auto")
viper.SetDefault("keybindings.bind_reload", []string{"R", "Ctrl-R"})
viper.SetDefault("keybindings.bind_home", "Backspace")
viper.SetDefault("keybindings.bind_bookmarks", "Ctrl-B")
viper.SetDefault("keybindings.bind_add_bookmark", "Ctrl-D")
viper.SetDefault("keybindings.bind_sub", "Ctrl-A")
viper.SetDefault("keybindings.bind_add_sub", "Ctrl-X")
viper.SetDefault("keybindings.bind_save", "Ctrl-S")
viper.SetDefault("keybindings.bind_pgup", []string{"PgUp", "u"})
viper.SetDefault("keybindings.bind_pgdn", []string{"PgDn", "d"})
viper.SetDefault("keybindings.bind_bottom", "Space")
viper.SetDefault("keybindings.bind_edit", "e")
viper.SetDefault("keybindings.bind_back", []string{"b", "Alt-Left"})
viper.SetDefault("keybindings.bind_forward", []string{"f", "Alt-Right"})
viper.SetDefault("keybindings.bind_new_tab", "Ctrl-T")
viper.SetDefault("keybindings.bind_close_tab", "Ctrl-W")
viper.SetDefault("keybindings.bind_next_tab", "F2")
viper.SetDefault("keybindings.bind_prev_tab", "F1")
viper.SetDefault("keybindings.bind_quit", []string{"Ctrl-C", "Ctrl-Q", "q"})
viper.SetDefault("keybindings.bind_help", "?")
viper.SetDefault("keybindings.bind_link1", "1")
viper.SetDefault("keybindings.bind_link2", "2")
viper.SetDefault("keybindings.bind_link3", "3")
viper.SetDefault("keybindings.bind_link4", "4")
viper.SetDefault("keybindings.bind_link5", "5")
viper.SetDefault("keybindings.bind_link6", "6")
viper.SetDefault("keybindings.bind_link7", "7")
viper.SetDefault("keybindings.bind_link8", "8")
viper.SetDefault("keybindings.bind_link9", "9")
viper.SetDefault("keybindings.bind_link0", "0")
viper.SetDefault("keybindings.bind_tab1", "!")
viper.SetDefault("keybindings.bind_tab2", "@")
viper.SetDefault("keybindings.bind_tab3", "#")
viper.SetDefault("keybindings.bind_tab4", "$")
viper.SetDefault("keybindings.bind_tab5", "%")
viper.SetDefault("keybindings.bind_tab6", "^")
viper.SetDefault("keybindings.bind_tab7", "&")
viper.SetDefault("keybindings.bind_tab8", "*")
viper.SetDefault("keybindings.bind_tab9", "(")
viper.SetDefault("keybindings.bind_tab0", ")")
viper.SetDefault("keybindings.shift_numbers", "")
viper.SetDefault("url-handlers.other", "off")
viper.SetDefault("cache.max_size", 0)
viper.SetDefault("cache.max_pages", 20)
viper.SetDefault("cache.timeout", 1800)
viper.SetDefault("subscriptions.popup", true)
viper.SetDefault("subscriptions.update_interval", 1800)
viper.SetDefault("subscriptions.workers", 3)
viper.SetDefault("subscriptions.entries_per_page", 20)
viper.SetConfigFile(configPath)
viper.SetConfigType("toml")
err = viper.ReadInConfig()
if err != nil {
return err
}
// Setup the key bindings
KeyInit()
// *** Downloads paths, setup, and creation ***
// Setup downloads dir
if viper.GetString("a-general.downloads") == "" {
// Find default Downloads dir
if userdirs.Download == "" {
DownloadsDir = filepath.Join(home, "Downloads")
} else {
DownloadsDir = userdirs.Download
}
// Create it just in case
err = os.MkdirAll(DownloadsDir, 0755)
if err != nil {
return fmt.Errorf("downloads path could not be created: %s", DownloadsDir)
}
} else {
// Validate path
dDir := viper.GetString("a-general.downloads")
di, err := os.Stat(dDir)
if err == nil {
if !di.IsDir() {
return fmt.Errorf("downloads path specified is not a directory: %s", dDir)
}
} else if os.IsNotExist(err) {
// Try to create path
err = os.MkdirAll(dDir, 0755)
if err != nil {
return fmt.Errorf("downloads path could not be created: %s", dDir)
}
} else {
// Some other error
return fmt.Errorf("couldn't access downloads directory: %s", dDir)
}
DownloadsDir = dDir
}
// Setup temporary downloads dir
if viper.GetString("a-general.temp_downloads") == "" {
TempDownloadsDir = filepath.Join(os.TempDir(), "amfora_temp")
// Make sure it exists
err = os.MkdirAll(TempDownloadsDir, 0755)
if err != nil {
return fmt.Errorf("temp downloads path could not be created: %s", TempDownloadsDir)
}
} else {
// Validate path
dDir := viper.GetString("a-general.temp_downloads")
di, err := os.Stat(dDir)
if err == nil {
if !di.IsDir() {
return fmt.Errorf("temp downloads path specified is not a directory: %s", dDir)
}
} else if os.IsNotExist(err) {
// Try to create path
err = os.MkdirAll(dDir, 0755)
if err != nil {
return fmt.Errorf("temp downloads path could not be created: %s", dDir)
}
} else {
// Some other error
return fmt.Errorf("couldn't access temp downloads directory: %s", dDir)
}
TempDownloadsDir = dDir
}
// Setup cache from config
cache.SetMaxSize(viper.GetInt("cache.max_size"))
cache.SetMaxPages(viper.GetInt("cache.max_pages"))
cache.SetTimeout(viper.GetInt("cache.timeout"))
// Setup theme
configTheme := viper.Sub("theme")
if configTheme != nil {
for k, v := range configTheme.AllSettings() {
colorStr, ok := v.(string)
if !ok {
return fmt.Errorf(`value for "%s" is not a string: %v`, k, v)
}
color := tcell.GetColor(strings.ToLower(colorStr))
if color == tcell.ColorDefault {
return fmt.Errorf(`invalid color format for "%s": %s`, k, colorStr)
}
SetColor(k, color)
}
}
if viper.GetBool("a-general.color") {
cview.Styles.PrimitiveBackgroundColor = GetColor("bg")
} // Otherwise it's black by default
// Parse HTTP command
HTTPCommand = viper.GetStringSlice("a-general.http")
if len(HTTPCommand) == 0 {
// Not a string array, interpret as a string instead
// Split on spaces to maintain compatibility with old versions
// The new better way to is to just define a string array in config
HTTPCommand = strings.Fields(viper.GetString("a-general.http"))
}
var rawMediaHandlers []struct {
Cmd []string `mapstructure:"cmd"`
Types []string `mapstructure:"types"`
NoPrompt bool `mapstructure:"no_prompt"`
Stream bool `mapstructure:"stream"`
}
err = viper.UnmarshalKey("mediatype-handlers", &rawMediaHandlers)
if err != nil {
return fmt.Errorf("couldn't parse mediatype-handlers section in config: %w", err)
}
for _, rawMediaHandler := range rawMediaHandlers {
if len(rawMediaHandler.Cmd) == 0 {
return fmt.Errorf("empty cmd array in mediatype-handlers section")
}
if len(rawMediaHandler.Types) == 0 {
return fmt.Errorf("empty types array in mediatype-handlers section")
}
for _, typ := range rawMediaHandler.Types {
if _, ok := MediaHandlers[typ]; ok {
return fmt.Errorf("multiple mediatype-handlers defined for %v", typ)
}
MediaHandlers[typ] = MediaHandler{
Cmd: rawMediaHandler.Cmd,
NoPrompt: rawMediaHandler.NoPrompt,
Stream: rawMediaHandler.Stream,
}
}
}
// Parse scrollbar options
switch viper.GetString("a-general.scrollbar") {
case "never":
ScrollBar = cview.ScrollBarNever
case "always":
ScrollBar = cview.ScrollBarAlways
default:
ScrollBar = cview.ScrollBarAuto
}
return nil
}