// CheckAPIKey performs a test API call with the API key
// provided in the configuration file to determine if the
// service should be enabled.
func (yt *YouTube) CheckAPIKey() error {
var (
response *http.Response
v *jason.Object
err error
)
if viper.GetString("api_keys.youtube") == "" {
return errors.New("No YouTube API key has been provided")
}
url := "https://www.googleapis.com/youtube/v3/videos?part=snippet&id=KQY9zrjPBjo&key=%s"
response, err = http.Get(fmt.Sprintf(url, viper.GetString("api_keys.youtube")))
defer response.Body.Close()
if err != nil {
return err
}
if v, err = jason.NewObjectFromReader(response.Body); err != nil {
return err
}
if v, err = v.GetObject("error"); err == nil {
message, _ := v.GetString("message")
code, _ := v.GetInt64("code")
errArray, _ := v.GetObjectArray("errors")
reason, _ := errArray[0].GetString("reason")
return fmt.Errorf("%d: %s (reason: %s)", code, message, reason)
}
return nil
}
func PrintLsFromJSON(json *jason.Object, version int, long bool, blobs bool, item string) {
var thisVersion int
blobArray, _ := json.GetObjectArray("Blobs")
versionArray, _ := json.GetObjectArray("Versions")
// if version set to zero, use lastest, else use the one given
if version == 0 {
thisVersion = len(versionArray)
} else {
thisVersion = version
}
// Find the version in the JSON, and its subtending slot map
versionElement := versionArray[thisVersion-1]
slotMap, _ := versionElement.GetObject("Slots")
// sort the Slot Keys (filenames) in an array
keyMap := []string{}
for key, _ := range slotMap.Map() {
keyMap = append(keyMap, key)
}
sort.Strings(keyMap)
// Print the slots in the sorted order
if long {
fmt.Println("Blob Size Date Creator File")
fmt.Println("-------------------------------------------------------------------------------------")
}
for i := range keyMap {
if long {
blobID, _ := slotMap.GetInt64(keyMap[i])
itemSize, _ := blobArray[blobID-1].GetInt64("Size")
saveDate, _ := blobArray[blobID-1].GetString("SaveDate")
creator, _ := blobArray[blobID-1].GetString("Creator")
fmt.Printf("%03d %12d %s %-8s ", blobID, itemSize, strings.Split(strings.Replace(saveDate, "T", " ", 1), ".")[0], creator)
}
fmt.Printf("%s/", item)
if version != 0 {
fmt.Printf("@%d/", thisVersion)
}
fmt.Printf("%s ", keyMap[i])
fmt.Printf("\n")
}
}
// Return device make/model from json imageinfo object.
func extractCamera(imageinfo *jason.Object) (string, string) {
metadata, err := imageinfo.GetObjectArray("commonmetadata")
if err != nil {
// metadata is null in some cases
return "", ""
} else {
return findCamera(metadata)
}
}
func PrintListFromJSON(json *jason.Object) {
versionArray, _ := json.GetObjectArray("Versions")
for _, version := range versionArray {
versionID, _ := version.GetInt64("ID")
saveDate, _ := version.GetString("SaveDate")
creator, _ := version.GetString("Creator")
note, _ := version.GetString("Note")
if note == "" {
note = "\"\""
}
fmt.Printf("@%02d %s %s %s\n", versionID, strings.Split(strings.Replace(saveDate, "T", " ", 1), ".")[0], creator, note)
}
}
func (yt *YouTube) getTrack(id string, submitter *gumble.User, offset time.Duration) (bot.Track, error) {
var (
resp *http.Response
err error
v *jason.Object
)
videoURL := "https://www.googleapis.com/youtube/v3/videos?part=snippet,contentDetails&id=%s&key=%s"
resp, err = http.Get(fmt.Sprintf(videoURL, id, viper.GetString("api_keys.youtube")))
defer resp.Body.Close()
if err != nil {
return bot.Track{}, err
}
v, err = jason.NewObjectFromReader(resp.Body)
if err != nil {
return bot.Track{}, err
}
items, _ := v.GetObjectArray("items")
if len(items) == 0 {
return bot.Track{}, errors.New("This YouTube video is private")
}
item := items[0]
title, _ := item.GetString("snippet", "title")
thumbnail, _ := item.GetString("snippet", "thumbnails", "high", "url")
author, _ := item.GetString("snippet", "channelTitle")
durationString, _ := item.GetString("contentDetails", "duration")
durationConverted, _ := duration.FromString(durationString)
duration := durationConverted.ToDuration()
return bot.Track{
ID: id,
URL: "https://youtube.com/watch?v=" + id,
Title: title,
Author: author,
Submitter: submitter.Name,
Service: yt.ReadableName,
Filename: id + ".track",
ThumbnailURL: thumbnail,
Duration: duration,
PlaybackOffset: offset,
Playlist: nil,
}, nil
}
func MakeStubFromJSON(json *jason.Object, item string, pathPrefix string) {
versionArray, _ := json.GetObjectArray("Versions")
thisVersion := len(versionArray)
// Find the version in the JSON, and its subtending slot map
versionElement := versionArray[thisVersion-1]
slotMap, _ := versionElement.GetObject("Slots")
for key, _ := range slotMap.Map() {
targetFile := path.Join(pathPrefix, key)
// create target directory, return on error
targetDir, _ := path.Split(targetFile)
err := os.MkdirAll(targetDir, 0755)
if err != nil {
fmt.Printf("Error: could not create directory %s\n%s\n", err.Error())
return
}
filePtr, err := os.Create(targetFile)
if err != nil {
fmt.Printf("Error: could not file directory %s\n%s\n", err.Error())
return
}
err = filePtr.Close()
if err != nil {
fmt.Printf("Error: could not close file %s\n%s\n", err.Error())
return
}
fmt.Println(targetFile)
}
}
func (f *FileList) BuildListFromJSON(json *jason.Object) {
blobArray, _ := json.GetObjectArray("Blobs")
versionArray, _ := json.GetObjectArray("Versions")
// build lovely mapping of md5 to blobs
for _, blob := range blobArray {
md5Sum, _ := blob.GetString("MD5")
DecodedMD5, _ := base64.StdEncoding.DecodeString(md5Sum)
blobID, _ := blob.GetInt64("ID")
f.Blobs[hex.EncodeToString(DecodedMD5)] = blobID
}
for _, version := range versionArray {
versionID, _ := version.GetInt64("ID")
slotMap, _ := version.GetObject("Slots")
for key, _ := range slotMap.Map() {
blobID, _ := slotMap.GetInt64(key)
md5Sum, _ := blobArray[blobID-1].GetString("MD5")
DecodedMD5, _ := base64.StdEncoding.DecodeString(md5Sum)
innerMap, ok := f.Files[key]
if !ok {
innerMap = make(map[int64][]byte)
f.Files[key] = innerMap
}
f.Files[key][blobID] = DecodedMD5
// maps files in latest version to their blobs
if versionID == int64(len(versionArray)) {
f.Blobs[key] = blobID
}
}
}
}
// GetTracks uses the passed URL to find and return
// tracks associated with the URL. An error is returned
// if any error occurs during the API call.
func (sc *SoundCloud) GetTracks(url string, submitter *gumble.User) ([]interfaces.Track, error) {
var (
apiURL string
err error
resp *http.Response
v *jason.Object
track bot.Track
tracks []interfaces.Track
)
urlSplit := strings.Split(url, "#t=")
apiURL = "http://api.soundcloud.com/resolve?url=%s&client_id=%s"
if sc.isPlaylist(url) {
// Submitter has added a playlist!
resp, err = http.Get(fmt.Sprintf(apiURL, urlSplit[0], viper.GetString("api_keys.soundcloud")))
defer resp.Body.Close()
if err != nil {
return nil, err
}
v, err = jason.NewObjectFromReader(resp.Body)
if err != nil {
return nil, err
}
title, _ := v.GetString("title")
permalink, _ := v.GetString("permalink_url")
playlist := &bot.Playlist{
ID: permalink,
Title: title,
Submitter: submitter.Name,
Service: sc.ReadableName,
}
var scTracks []*jason.Object
scTracks, err = v.GetObjectArray("tracks")
if err != nil {
return nil, err
}
dummyOffset, _ := time.ParseDuration("0s")
for _, t := range scTracks {
track, err = sc.getTrack(t, dummyOffset, submitter)
if err != nil {
// Skip this track.
continue
}
track.Playlist = playlist
tracks = append(tracks, track)
}
if len(tracks) == 0 {
return nil, errors.New("Invalid playlist. No tracks were added")
}
return tracks, nil
}
// Submitter has added a track!
offset := 0
// Calculate track offset if needed
if len(urlSplit) == 2 {
timeSplit := strings.Split(urlSplit[1], ":")
multiplier := 1
for i := len(timeSplit) - 1; i >= 0; i-- {
time, _ := strconv.Atoi(timeSplit[i])
offset += time * multiplier
multiplier *= 60
}
}
playbackOffset, _ := time.ParseDuration(fmt.Sprintf("%ds", offset))
resp, err = http.Get(fmt.Sprintf(apiURL, urlSplit[0], viper.GetString("api_keys.soundcloud")))
defer resp.Body.Close()
if err != nil {
return nil, err
}
v, err = jason.NewObjectFromReader(resp.Body)
if err != nil {
return nil, err
}
track, err = sc.getTrack(v, playbackOffset, submitter)
if err != nil {
return nil, err
}
tracks = append(tracks, track)
return tracks, nil
}
// GetTracks uses the passed URL to find and return
// tracks associated with the URL. An error is returned
// if any error occurs during the API call.
func (yt *YouTube) GetTracks(url string, submitter *gumble.User) ([]interfaces.Track, error) {
var (
playlistURL string
playlistItemsURL string
id string
err error
resp *http.Response
v *jason.Object
track bot.Track
tracks []interfaces.Track
)
playlistURL = "https://www.googleapis.com/youtube/v3/playlists?part=snippet&id=%s&key=%s"
playlistItemsURL = "https://www.googleapis.com/youtube/v3/playlistItems?part=snippet,contentDetails&playlistId=%s&maxResults=%d&key=%s&pageToken=%s"
id, err = yt.getID(url)
if err != nil {
return nil, err
}
if yt.isPlaylist(url) {
resp, err = http.Get(fmt.Sprintf(playlistURL, id, viper.GetString("api_keys.youtube")))
defer resp.Body.Close()
if err != nil {
return nil, err
}
v, err = jason.NewObjectFromReader(resp.Body)
if err != nil {
return nil, err
}
items, _ := v.GetObjectArray("items")
item := items[0]
title, _ := item.GetString("snippet", "title")
playlist := &bot.Playlist{
ID: id,
Title: title,
Submitter: submitter.Name,
Service: yt.ReadableName,
}
maxItems := math.MaxInt32
if viper.GetInt("queue.max_tracks_per_playlist") > 0 {
maxItems = viper.GetInt("queue.max_tracks_per_playlist")
}
pageToken := ""
for len(tracks) < maxItems {
curResp, curErr := http.Get(fmt.Sprintf(playlistItemsURL, id, maxItems, viper.GetString("api_keys.youtube"), pageToken))
defer curResp.Body.Close()
if curErr != nil {
// An error occurred, simply skip this track.
continue
}
v, err = jason.NewObjectFromReader(curResp.Body)
if err != nil {
// An error occurred, simply skip this track.
continue
}
curTracks, _ := v.GetObjectArray("items")
for _, track := range curTracks {
videoID, _ := track.GetString("snippet", "resourceId", "videoId")
// Unfortunately we have to execute another API call for each video as the YouTube API does not
// return video durations from the playlistItems endpoint...
newTrack, _ := yt.getTrack(videoID, submitter)
newTrack.Playlist = playlist
tracks = append(tracks, newTrack)
if len(tracks) >= maxItems {
break
}
}
}
if len(tracks) == 0 {
return nil, errors.New("Invalid playlist. No tracks were added")
}
return tracks, nil
}
track, err = yt.getTrack(id, submitter)
if err != nil {
return nil, err
}
tracks = append(tracks, track)
return tracks, nil
}