go-mastodon/cmd/mstdn/main.go

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package main
import (
"bufio"
"bytes"
"context"
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"encoding/json"
"fmt"
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"io"
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"io/ioutil"
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"net/url"
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"os"
"path/filepath"
"runtime"
"strings"
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"github.com/fatih/color"
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"github.com/mattn/go-mastodon"
"github.com/mattn/go-tty"
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"github.com/urfave/cli/v2"
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"golang.org/x/net/html"
)
func readFile(filename string) ([]byte, error) {
if filename == "-" {
return ioutil.ReadAll(os.Stdin)
}
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return ioutil.ReadFile(filename)
}
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func textContent(s string) string {
doc, err := html.Parse(strings.NewReader(s))
if err != nil {
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return s
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}
var buf bytes.Buffer
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var extractText func(node *html.Node, w *bytes.Buffer)
extractText = func(node *html.Node, w *bytes.Buffer) {
if node.Type == html.TextNode {
data := strings.Trim(node.Data, "\r\n")
if data != "" {
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w.WriteString(data)
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}
}
for c := node.FirstChild; c != nil; c = c.NextSibling {
extractText(c, w)
}
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if node.Type == html.ElementNode {
name := strings.ToLower(node.Data)
if name == "br" {
w.WriteString("\n")
}
}
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}
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extractText(doc, &buf)
return buf.String()
}
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var (
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readUsername = func() (string, error) {
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b, _, err := bufio.NewReader(os.Stdin).ReadLine()
if err != nil {
return "", err
}
return string(b), nil
}
readPassword func() (string, error)
)
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func prompt() (string, string, error) {
fmt.Print("E-Mail: ")
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email, err := readUsername()
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if err != nil {
return "", "", err
}
fmt.Print("Password: ")
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var password string
if readPassword == nil {
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var t *tty.TTY
t, err = tty.Open()
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if err != nil {
return "", "", err
}
defer t.Close()
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password, err = t.ReadPassword()
} else {
password, err = readPassword()
}
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if err != nil {
return "", "", err
}
return email, password, nil
}
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func configFile(c *cli.Context) (string, error) {
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dir := os.Getenv("HOME")
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if runtime.GOOS == "windows" {
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dir = os.Getenv("APPDATA")
if dir == "" {
dir = filepath.Join(os.Getenv("USERPROFILE"), "Application Data", "mstdn")
}
dir = filepath.Join(dir, "mstdn")
} else {
dir = filepath.Join(dir, ".config", "mstdn")
}
if err := os.MkdirAll(dir, 0700); err != nil {
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return "", err
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}
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var file string
profile := c.String("profile")
if profile != "" {
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file = filepath.Join(dir, "settings-"+profile+".json")
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} else {
file = filepath.Join(dir, "settings.json")
}
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return file, nil
}
func getConfig(c *cli.Context) (string, *mastodon.Config, error) {
file, err := configFile(c)
if err != nil {
return "", nil, err
}
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b, err := ioutil.ReadFile(file)
if err != nil && !os.IsNotExist(err) {
return "", nil, err
}
config := &mastodon.Config{
Server: "https://mstdn.jp",
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ClientID: "1e463436008428a60ed14ff1f7bc0b4d923e14fc4a6827fa99560b0c0222612f",
ClientSecret: "72b63de5bc11111a5aa1a7b690672d78ad6a207ce32e16ea26115048ec5d234d",
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}
if err == nil {
err = json.Unmarshal(b, &config)
if err != nil {
return "", nil, fmt.Errorf("could not unmarshal %v: %v", file, err)
}
}
return file, config, nil
}
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func authenticate(client *mastodon.Client, config *mastodon.Config, file string) error {
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email, password, err := prompt()
if err != nil {
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return err
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}
err = client.Authenticate(context.Background(), email, password)
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if err != nil {
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return err
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}
b, err := json.MarshalIndent(config, "", " ")
if err != nil {
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return fmt.Errorf("failed to store file: %v", err)
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}
err = ioutil.WriteFile(file, b, 0700)
if err != nil {
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return fmt.Errorf("failed to store file: %v", err)
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}
return nil
}
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func argstr(c *cli.Context) string {
a := []string{}
for i := 0; i < c.NArg(); i++ {
a = append(a, c.Args().Get(i))
}
return strings.Join(a, " ")
}
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func fatalIf(err error) {
if err == nil {
return
}
fmt.Fprintf(os.Stderr, "%s: %v\n", os.Args[0], err)
os.Exit(1)
}
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func makeApp() *cli.App {
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app := cli.NewApp()
app.Name = "mstdn"
app.Usage = "mastodon client"
app.Version = "0.0.1"
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app.Flags = []cli.Flag{
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&cli.StringFlag{
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Name: "profile",
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Usage: "profile name",
Value: "",
},
}
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app.Commands = []*cli.Command{
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{
Name: "toot",
Usage: "post toot",
Flags: []cli.Flag{
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&cli.StringFlag{
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Name: "ff",
Usage: "post utf-8 string from a file(\"-\" means STDIN)",
Value: "",
},
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&cli.StringFlag{
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Name: "i",
Usage: "in-reply-to",
Value: "",
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},
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},
Action: cmdToot,
},
{
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Name: "stream",
Usage: "stream statuses",
Flags: []cli.Flag{
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&cli.StringFlag{
Name: "type",
Usage: "stream type (public,public/local,user:NAME,hashtag:TAG)",
},
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&cli.BoolFlag{
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Name: "json",
Usage: "output JSON",
},
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&cli.BoolFlag{
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Name: "simplejson",
Usage: "output simple JSON",
},
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&cli.StringFlag{
Name: "template",
Usage: "output with tamplate format",
},
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},
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Action: cmdStream,
},
{
Name: "timeline",
Usage: "show timeline",
Action: cmdTimeline,
},
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{
Name: "timeline-home",
Usage: "show timeline home",
Action: cmdTimelineHome,
},
{
Name: "timeline-local",
Usage: "show timeline local",
Action: cmdTimelineLocal,
},
{
Name: "timeline-public",
Usage: "show timeline public",
Action: cmdTimelinePublic,
},
{
Name: "timeline-direct",
Usage: "show timeline direct",
Action: cmdTimelineDirect,
},
{
Name: "timeline-tag",
Flags: []cli.Flag{
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&cli.BoolFlag{
Name: "local",
Usage: "local tags only",
},
},
Usage: "show tagged timeline",
Action: cmdTimelineHashtag,
},
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{
Name: "notification",
Usage: "show notification",
Action: cmdNotification,
},
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{
Name: "instance",
Usage: "show instance information",
Action: cmdInstance,
},
{
Name: "instance_activity",
Usage: "show instance activity information",
Action: cmdInstanceActivity,
},
{
Name: "instance_peers",
Usage: "show instance peers information",
Action: cmdInstancePeers,
},
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{
Name: "account",
Usage: "show account information",
Action: cmdAccount,
},
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{
Name: "search",
Usage: "search content",
Action: cmdSearch,
},
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{
Name: "follow",
Usage: "follow account",
Action: cmdFollow,
},
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{
Name: "followers",
Usage: "show followers",
Action: cmdFollowers,
},
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{
Name: "upload",
Usage: "upload file",
Action: cmdUpload,
},
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{
Name: "delete",
Usage: "delete status",
Action: cmdDelete,
},
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{
Name: "init",
Usage: "initialize profile",
Action: func(c *cli.Context) error { return nil },
},
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{
Name: "mikami",
Usage: "search mikami",
Action: cmdMikami,
},
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{
Name: "xsearch",
Usage: "cross search",
Action: cmdXSearch,
},
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}
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app.Setup()
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return app
}
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type screen struct {
host string
}
func newScreen(config *mastodon.Config) *screen {
var host string
u, err := url.Parse(config.Server)
if err == nil {
host = u.Host
}
return &screen{host}
}
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func (s *screen) acct(a string) string {
if !strings.Contains(a, "@") {
a += "@" + s.host
}
return a
}
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func (s *screen) displayError(w io.Writer, e error) {
color.Set(color.FgYellow)
fmt.Fprintln(w, e.Error())
color.Set(color.Reset)
}
func (s *screen) displayStatus(w io.Writer, t *mastodon.Status) {
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if t == nil {
return
}
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if t.Reblog != nil {
color.Set(color.FgHiRed)
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fmt.Fprint(w, s.acct(t.Account.Acct))
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color.Set(color.Reset)
fmt.Fprint(w, " reblogged ")
color.Set(color.FgHiBlue)
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fmt.Fprintln(w, s.acct(t.Reblog.Account.Acct))
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fmt.Fprintln(w, textContent(t.Reblog.Content))
color.Set(color.Reset)
} else {
color.Set(color.FgHiRed)
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fmt.Fprintln(w, s.acct(t.Account.Acct))
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color.Set(color.Reset)
fmt.Fprintln(w, textContent(t.Content))
}
}
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func run() int {
app := makeApp()
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app.Before = func(c *cli.Context) error {
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if c.Args().Get(0) == "init" {
file, err := configFile(c)
if err != nil {
return err
}
os.Remove(file)
}
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file, config, err := getConfig(c)
if err != nil {
return err
}
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client := mastodon.NewClient(config)
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client.UserAgent = "mstdn"
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app.Metadata = map[string]interface{}{
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"client": client,
"config": config,
"xsearch_url": "http://mastodonsearch.jp/cross/",
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}
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if config.AccessToken == "" {
return authenticate(client, config, file)
}
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return nil
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}
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fatalIf(app.Run(os.Args))
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return 0
}
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func main() {
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os.Exit(run())
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}