/
peeweebot.go
172 lines (143 loc) · 3.93 KB
/
peeweebot.go
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package main
import (
"bytes"
"encoding/base64"
"encoding/json"
"flag"
"io"
"io/ioutil"
"log"
"math/rand"
"net/url"
"os"
"os/user"
"path/filepath"
"strings"
"time"
"github.com/ChimeraCoder/anaconda"
"golang.org/x/net/context"
"golang.org/x/oauth2"
"golang.org/x/oauth2/google"
"google.golang.org/api/drive/v2"
)
var configDir = flag.String("config", "~/.peeweebot/", "location of config directory")
var folderId = "0B1SaB_OdyoZrVEhQR01WWXoxbjA"
func getConfigDir() string {
usr, err := user.Current()
if err != nil {
log.Fatalf("Unable to get current user: %v", err)
}
return filepath.Clean(strings.Replace(*configDir, "~/", usr.HomeDir+"/", 1))
}
func getGoogleOAuthConfig() *oauth2.Config {
b, err := ioutil.ReadFile(filepath.Join(getConfigDir(), "google_client_secrets.json"))
if err != nil {
log.Fatalf("Unable to read client secret file: %v", err)
}
config, err := google.ConfigFromJSON(b, drive.DriveReadonlyScope)
if err != nil {
log.Fatalf("Unable to parse client secret file to config: %v", err)
}
return config
}
func getGoogleDriveTokenFromFile() *oauth2.Token {
filename := filepath.Join(getConfigDir(), "google_drive_oauth_token.json")
f, err := os.Open(filename)
if err != nil {
log.Fatalf("Unable to open token file \"%v\": %v", filename, err)
}
defer f.Close()
t := &oauth2.Token{}
err = json.NewDecoder(f).Decode(t)
if err != nil {
log.Fatalf("Unable to decode token file \"%v\": %v", filename, err)
}
return t
}
func getGoogleDriveService(ctx context.Context) (*drive.Service, error) {
return drive.New(
getGoogleOAuthConfig().Client(
ctx,
getGoogleDriveTokenFromFile(),
),
)
}
func getAllChildren(driveService *drive.Service, folder string) (list []*drive.ChildReference) {
var pageToken string
for {
call := driveService.Children.List(folder)
if pageToken != "" {
call.PageToken(pageToken)
}
r, err := call.Do()
if err != nil {
log.Fatalf("Unable to retrieve files.", err)
}
list = append(list, r.Items...)
pageToken = r.NextPageToken
if pageToken == "" {
break
}
}
return
}
type TwitterStuff struct {
ConsumerKey string
ConsumerSecret string
AccessToken string
AccessTokenSecret string
}
func getTwitterClient() *anaconda.TwitterApi {
fd, err := os.Open(filepath.Join(getConfigDir(), "twitter_stuff.json"))
if err != nil {
log.Fatalf("Unable to open twitter_stuff.json: %v", err)
}
defer fd.Close()
twitterStuff := TwitterStuff{}
err = json.NewDecoder(fd).Decode(&twitterStuff)
if err != nil {
log.Fatalf("Unable to decode twitter_stuff.json: %v", err)
}
anaconda.SetConsumerKey(twitterStuff.ConsumerKey)
anaconda.SetConsumerSecret(twitterStuff.ConsumerSecret)
return anaconda.NewTwitterApi(
twitterStuff.AccessToken,
twitterStuff.AccessTokenSecret,
)
}
func tweetRandomPicture(driveService *drive.Service, twitterApi *anaconda.TwitterApi) {
fileList := getAllChildren(driveService, folderId)
fileNumber := rand.Intn(len(fileList))
selectedFile := fileList[fileNumber]
fileResponse, err := driveService.Files.Get(selectedFile.Id).Download()
if err != nil {
log.Fatalf("Unable to fetch file: %v", err)
}
defer fileResponse.Body.Close()
buffer := new(bytes.Buffer)
writer := base64.NewEncoder(base64.StdEncoding, buffer)
_, err = io.Copy(writer, fileResponse.Body)
if err != nil {
log.Fatalf("Unable to encode image as base64: %v", err)
}
media, err := twitterApi.UploadMedia(buffer.String())
if err != nil {
log.Fatalf("Unable to upload media: %v", err)
}
params := url.Values{}
params.Set("media_ids", media.MediaIDString)
_, err = twitterApi.PostTweet("", params)
if err != nil {
log.Fatalf("Unable to post tweet: %v", err)
}
}
func main() {
rand.Seed(time.Now().Unix())
ctx := context.Background()
driveService, err := getGoogleDriveService(ctx)
if err != nil {
log.Fatalf("Unable to get google drive service: %v", err)
}
twitterApi := getTwitterClient()
tweetRandomPicture(driveService, twitterApi)
}