bot.*Twitch.OAuthToken - Code Metrics - Inspection of "twitch oauth" - FlameInTheDark/dtbot - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( afa16b...318446 )

by Viktor

created 2020-05-12 09:59 UTC

bot.*Twitch.OAuthToken A

↳ Parent: bot/twitch.go

Complexity

Conditions

Size

Total Lines	18
Code Lines	14

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	3
eloc	14
nop	0
dl	0
loc	18
rs	9.7
c	0
b	0
f	0

package bot

import (
	"context"
	"encoding/json"
	"errors"
	"fmt"
	"github.com/bwmarrin/discordgo"
	"log"
	"net/http"
	"net/url"
	"strings"
	"time"

	"golang.org/x/oauth2/clientcredentials"
	"golang.org/x/oauth2/twitch"
)

// Twitch contains streams
type Twitch struct {
	Guilds  map[string]*TwitchGuild
	DB      *DBWorker
	Conf    *Config
	Discord *discordgo.Session
}

// TwitchGuild contains streams from specified guild
type TwitchGuild struct {
	ID      string
	Streams map[string]*TwitchStream
}

// TwitchStream contains stream data
type TwitchStream struct {
	Login           string
	UserID          string
	Name            string
	Guild           string
	Channel         string
	ProfileImageURL string
	IsOnline        bool
	IsCustom        bool
	CustomMessage   string
	CustomImageURL  string
}

// TwitchStreamResult contains response of Twitch API for streams
type TwitchStreamResult struct {
	Data []TwitchStreamData `json:"data"`
}

// TwitchStreamData Twitch API response struct
type TwitchStreamData struct {
	ID           string `json:"id"`
	UserID       string `json:"user_id"`
	UserName     string `json:"user_name"`
	GameID       string `json:"game_id"`
	Type         string `json:"type"`
	Title        string `json:"title"`
	Viewers      int    `json:"viewer_count"`
	Language     string `json:"language"`
	ThumbnailURL string `json:"thumbnail_url"`
}

// TwitchUserResult contains response of Twitch API for users
type TwitchUserResult struct {
	Data []TwitchUserData `json:"data"`
}

// TwitchUserData Twitch API response struct
type TwitchUserData struct {
	ID              string `json:"id"`
	Login           string `json:"login"`
	Name            string `json:"display_name"`
	Type            string `json:"type"`
	BroadcasterType string `json:"broadcaster_type"`
	Description     string `json:"description"`
	ProfileImgURL   string `json:"profile_image_url"`
	OfflineImgURL   string `json:"offline_image_url"`
	Views           int    `json:"view_count"`
}

// TwitchGameResult contains response of Twitch API for games
type TwitchGameResult struct {
	Data []TwitchGameData `json:"data"`
}

// TwitchGameData Twitch API response struct
type TwitchGameData struct {
	ID     string `json:"id"`
	Name   string `json:"name"`
	ArtURL string `json:"box_art_url"`
}

// TwitchInit makes new instance of twitch api worker
func TwitchInit(session *discordgo.Session, conf *Config, db *DBWorker) *Twitch {
	guilds := make(map[string]*TwitchGuild)
	var counter int
	for _, g := range session.State.Guilds {
		guildStreams := db.GetTwitchStreams(g.ID)
		counter += len(guildStreams)
		guilds[g.ID] = &TwitchGuild{g.ID, guildStreams}
	}
	fmt.Printf("Loaded [%v] streamers\n", counter)
	return &Twitch{guilds, db, conf, session}
}

func (t *Twitch) OAuthToken() string {

	dbt := t.DB.GetTwitchToken()
	if dbt.Expire.Unix() < time.Now().Unix() {
		var oauth2Config *clientcredentials.Config
		oauth2Config = &clientcredentials.Config{
			ClientID:     t.Conf.Twitch.ClientID,
			ClientSecret: t.Conf.Twitch.ClientSecret,
			TokenURL:     twitch.Endpoint.TokenURL,
		}

		token, err := oauth2Config.Token(context.Background())
		if err != nil {
			log.Println("[Twitch] Getting token error: ", err)
		}
		t.DB.UpdateTwitchToken(token.AccessToken, token.Expiry)
		return token.AccessToken
	}
	return dbt.Token
}

// Update updates status of streamers and notify
func (t *Twitch) Update() {
	var gameResult TwitchGameResult
	var streamResult TwitchStreamResult
	var streams = make(map[string]*TwitchStreamData)
	var games = make(map[string]*TwitchGameData)
	var oauthToken = t.OAuthToken()
	timeout := time.Duration(time.Duration(1) * time.Second)
	client := &http.Client{
		Timeout: time.Duration(timeout),
	}
	streamQuery := url.Values{}
	gameQuery := url.Values{}
	for _, g := range t.Guilds {
		for _, s := range g.Streams {
			streamQuery.Add("user_login", s.Login)
		}
	}
	// Streams
	tsreq, _ := http.NewRequest("GET", fmt.Sprintf("https://api.twitch.tv/helix/streams?%v", streamQuery.Encode()), nil)
	tsreq.Header.Add("Client-ID", t.Conf.Twitch.ClientID)
	tsreq.Header.Add("Authorization", "Bearer "+oauthToken)
	tsresp, tserr := client.Do(tsreq)
	if tserr == nil {
		jerr := json.NewDecoder(tsresp.Body).Decode(&streamResult)
		if jerr != nil {
			t.DB.Log("Twitch", "", "Parsing Twitch API stream error")
		}
	} else {
		t.DB.Log("Twitch", "", fmt.Sprintf("Getting Twitch API stream error: %v", tserr.Error()))
		return
	}
	for i, s := range streamResult.Data {
		gameQuery.Add("id", s.GameID)
		streams[s.UserID] = &streamResult.Data[i]
	}

	// Games
	tgreq, _ := http.NewRequest("GET", fmt.Sprintf("https://api.twitch.tv/helix/games?%v", gameQuery.Encode()), nil)
	tgreq.Header.Add("Client-ID", t.Conf.Twitch.ClientID)
	tgreq.Header.Add("Authorization", "Bearer "+oauthToken)
	tgresp, tgerr := client.Do(tgreq)
	if tgerr == nil {
		jerr := json.NewDecoder(tgresp.Body).Decode(&gameResult)
		if jerr != nil {
			t.DB.Log("Twitch", "", "Parsing Twitch API game error")
			return
		}
	} else {
		t.DB.Log("Twitch", "", fmt.Sprintf("Getting Twitch API game error: %v", tgerr.Error()))
		return
	}
	for i, g := range gameResult.Data {
		games[g.ID] = &gameResult.Data[i]
	}

	for _, g := range t.Guilds {
		for _, s := range g.Streams {
			if stream, ok := streams[s.UserID]; ok {
				if !s.IsOnline {
					gameName := "Unknown"
					if _, ok := games[stream.GameID]; ok {
						gameName = games[stream.GameID].Name
					}
					t.Guilds[s.Guild].Streams[s.Login].IsOnline = true
					t.DB.UpdateStream(s)
					imgURL := strings.Replace(stream.ThumbnailURL, "{width}", "320", -1)
					imgURL = strings.Replace(imgURL, "{height}", "180", -1)
					emb := NewEmbed(stream.Title).
						URL(fmt.Sprintf("http://www.twitch.tv/%v", s.Login)).
						Author(s.Name, "", s.ProfileImageURL).
						Field("Viewers", fmt.Sprintf("%v", stream.Viewers), true).
						Field("Game", gameName, true).
						AttachImgURL(imgURL).
						Color(t.Conf.General.EmbedColor)
					if s.CustomMessage != "" {
						emb.Content = s.CustomMessage
					} else {
						emb.Content = fmt.Sprintf(t.Conf.GetLocaleLang("twitch_online", stream.Language), s.Name, s.Login)

					}
					_, _ = t.Discord.ChannelMessageSendComplex(s.Channel, emb.MessageSend)
				}
			} else {
				if s.IsOnline == true {
					t.Guilds[s.Guild].Streams[s.Login].IsOnline = false
					t.DB.UpdateStream(s)
				}
			}
		}
	}
}

// AddStreamer adds new streamer to list
func (t *Twitch) AddStreamer(guild, channel, login, message string) (string, error) {
	if g, ok := t.Guilds[guild]; ok {
		if g.Streams == nil {
			t.Guilds[guild].Streams = make(map[string]*TwitchStream)
		}
		for _, s := range g.Streams {
			if s.Guild == guild && s.Login == login {
				return "", errors.New("streamer already exists")
			}
		}
		var oauthToken = t.OAuthToken()
		timeout := time.Duration(time.Duration(1) * time.Second)
		client := &http.Client{
			Timeout: time.Duration(timeout),
		}
		req, _ := http.NewRequest("GET", fmt.Sprintf("https://api.twitch.tv/helix/users?login=%v", login), nil)
		req.Header.Add("Client-ID", t.Conf.Twitch.ClientID)
		req.Header.Add("Authorization", "Bearer "+oauthToken)
		resp, err := client.Do(req)
		var result TwitchUserResult
		if err == nil {
			err = json.NewDecoder(resp.Body).Decode(&result)
			if err != nil {
				return "", errors.New("parsing streamer error")
			}
			if len(result.Data) > 0 {
				stream := TwitchStream{}
				stream.Login = login
				stream.Channel = channel
				stream.Guild = guild
				stream.UserID = result.Data[0].ID
				if result.Data[0].Name == "" {
					stream.Name = login
				} else {
					stream.Name = result.Data[0].Name
				}
				stream.ProfileImageURL = result.Data[0].ProfileImgURL
				stream.CustomMessage = message
				t.Guilds[guild].Streams[login] = &stream
				t.DB.AddStream(&stream)
			} else {
				return "", errors.New("streamer not found")
			}
		} else {
			return "", errors.New("getting streamer error")
		}
		return result.Data[0].Name, nil
	}
	return "", errors.New("guild not found")
}

// RemoveStreamer removes streamer from list
func (t *Twitch) RemoveStreamer(login, guild string) error {
	complete := false
	if g, ok := t.Guilds[guild]; ok {
		if g.Streams != nil {
			if t.Guilds[guild].Streams[login] != nil {
				if g.Streams[login].Login == login && g.Streams[login].Guild == guild {
					t.DB.RemoveStream(g.Streams[login])
					delete(t.Guilds[guild].Streams, login)
					complete = true
				}
			}
		}
	} else {
		return errors.New("guild not found")
	}
	if !complete {
		return errors.New("streamer not found")
	}
	return nil
}


1			package bot
2
3			import (
4			"context"
5			"encoding/json"
6			"errors"
7			"fmt"
8			"github.com/bwmarrin/discordgo"
9			"log"
10			"net/http"
11			"net/url"
12			"strings"
13			"time"
14
15			"golang.org/x/oauth2/clientcredentials"
16			"golang.org/x/oauth2/twitch"
17			)
18
19			// Twitch contains streams
20			type Twitch struct {
21			Guilds map[string]*TwitchGuild
22			DB *DBWorker
23			Conf *Config
24			Discord *discordgo.Session
25			}
26
27			// TwitchGuild contains streams from specified guild
28			type TwitchGuild struct {
29			ID string
30			Streams map[string]*TwitchStream
31			}
32
33			// TwitchStream contains stream data
34			type TwitchStream struct {
35			Login string
36			UserID string
37			Name string
38			Guild string
39			Channel string
40			ProfileImageURL string
41			IsOnline bool
42			IsCustom bool
43			CustomMessage string
44			CustomImageURL string
45			}
46
47			// TwitchStreamResult contains response of Twitch API for streams
48			type TwitchStreamResult struct {
49			Data []TwitchStreamData `json:"data"`
50			}
51
52			// TwitchStreamData Twitch API response struct
53			type TwitchStreamData struct {
54			ID string `json:"id"`
55			UserID string `json:"user_id"`
56			UserName string `json:"user_name"`
57			GameID string `json:"game_id"`
58			Type string `json:"type"`
59			Title string `json:"title"`
60			Viewers int `json:"viewer_count"`
61			Language string `json:"language"`
62			ThumbnailURL string `json:"thumbnail_url"`
63			}
64
65			// TwitchUserResult contains response of Twitch API for users
66			type TwitchUserResult struct {
67			Data []TwitchUserData `json:"data"`
68			}
69
70			// TwitchUserData Twitch API response struct
71			type TwitchUserData struct {
72			ID string `json:"id"`
73			Login string `json:"login"`
74			Name string `json:"display_name"`
75			Type string `json:"type"`
76			BroadcasterType string `json:"broadcaster_type"`
77			Description string `json:"description"`
78			ProfileImgURL string `json:"profile_image_url"`
79			OfflineImgURL string `json:"offline_image_url"`
80			Views int `json:"view_count"`
81			}
82
83			// TwitchGameResult contains response of Twitch API for games
84			type TwitchGameResult struct {
85			Data []TwitchGameData `json:"data"`
86			}
87
88			// TwitchGameData Twitch API response struct
89			type TwitchGameData struct {
90			ID string `json:"id"`
91			Name string `json:"name"`
92			ArtURL string `json:"box_art_url"`
93			}
94
95			// TwitchInit makes new instance of twitch api worker
96			func TwitchInit(session discordgo.Session, conf Config, db DBWorker) Twitch {
97			guilds := make(map[string]*TwitchGuild)
98			var counter int
99			for _, g := range session.State.Guilds {
100			guildStreams := db.GetTwitchStreams(g.ID)
101			counter += len(guildStreams)
102			guilds[g.ID] = &TwitchGuild{g.ID, guildStreams}
103			}
104			fmt.Printf("Loaded [%v] streamers\n", counter)
105			return &Twitch{guilds, db, conf, session}
106			}
107
108			func (t *Twitch) OAuthToken() string {
			0 ignored issues – show introduced 2020-05-12 10:02 UTC by Report Bug Copy Issue Report exported method Twitch.OAuthToken should have comment or be unexported Loading history...
109			dbt := t.DB.GetTwitchToken()
110			if dbt.Expire.Unix() < time.Now().Unix() {
111			var oauth2Config *clientcredentials.Config
112			oauth2Config = &clientcredentials.Config{
113			ClientID: t.Conf.Twitch.ClientID,
114			ClientSecret: t.Conf.Twitch.ClientSecret,
115			TokenURL: twitch.Endpoint.TokenURL,
116			}
117
118			token, err := oauth2Config.Token(context.Background())
119			if err != nil {
120			log.Println("[Twitch] Getting token error: ", err)
121			}
122			t.DB.UpdateTwitchToken(token.AccessToken, token.Expiry)
123			return token.AccessToken
124			}
125			return dbt.Token
126			}
127
128			// Update updates status of streamers and notify
129			func (t *Twitch) Update() {
130			var gameResult TwitchGameResult
131			var streamResult TwitchStreamResult
132			var streams = make(map[string]*TwitchStreamData)
133			var games = make(map[string]*TwitchGameData)
134			var oauthToken = t.OAuthToken()
135			timeout := time.Duration(time.Duration(1) * time.Second)
136			client := &http.Client{
137			Timeout: time.Duration(timeout),
138			}
139			streamQuery := url.Values{}
140			gameQuery := url.Values{}
141			for _, g := range t.Guilds {
142			for _, s := range g.Streams {
143			streamQuery.Add("user_login", s.Login)
144			}
145			}
146			// Streams
147			tsreq, _ := http.NewRequest("GET", fmt.Sprintf("https://api.twitch.tv/helix/streams?%v", streamQuery.Encode()), nil)
148			tsreq.Header.Add("Client-ID", t.Conf.Twitch.ClientID)
149			tsreq.Header.Add("Authorization", "Bearer "+oauthToken)
150			tsresp, tserr := client.Do(tsreq)
151			if tserr == nil {
152			jerr := json.NewDecoder(tsresp.Body).Decode(&streamResult)
153			if jerr != nil {
154			t.DB.Log("Twitch", "", "Parsing Twitch API stream error")
155			}
156			} else {
157			t.DB.Log("Twitch", "", fmt.Sprintf("Getting Twitch API stream error: %v", tserr.Error()))
158			return
159			}
160			for i, s := range streamResult.Data {
161			gameQuery.Add("id", s.GameID)
162			streams[s.UserID] = &streamResult.Data[i]
163			}
164
165			// Games
166			tgreq, _ := http.NewRequest("GET", fmt.Sprintf("https://api.twitch.tv/helix/games?%v", gameQuery.Encode()), nil)
167			tgreq.Header.Add("Client-ID", t.Conf.Twitch.ClientID)
168			tgreq.Header.Add("Authorization", "Bearer "+oauthToken)
169			tgresp, tgerr := client.Do(tgreq)
170			if tgerr == nil {
171			jerr := json.NewDecoder(tgresp.Body).Decode(&gameResult)
172			if jerr != nil {
173			t.DB.Log("Twitch", "", "Parsing Twitch API game error")
174			return
175			}
176			} else {
177			t.DB.Log("Twitch", "", fmt.Sprintf("Getting Twitch API game error: %v", tgerr.Error()))
178			return
179			}
180			for i, g := range gameResult.Data {
181			games[g.ID] = &gameResult.Data[i]
182			}
183
184			for _, g := range t.Guilds {
185			for _, s := range g.Streams {
186			if stream, ok := streams[s.UserID]; ok {
187			if !s.IsOnline {
188			gameName := "Unknown"
189			if _, ok := games[stream.GameID]; ok {
190			gameName = games[stream.GameID].Name
191			}
192			t.Guilds[s.Guild].Streams[s.Login].IsOnline = true
193			t.DB.UpdateStream(s)
194			imgURL := strings.Replace(stream.ThumbnailURL, "{width}", "320", -1)
195			imgURL = strings.Replace(imgURL, "{height}", "180", -1)
196			emb := NewEmbed(stream.Title).
197			URL(fmt.Sprintf("http://www.twitch.tv/%v", s.Login)).
198			Author(s.Name, "", s.ProfileImageURL).
199			Field("Viewers", fmt.Sprintf("%v", stream.Viewers), true).
200			Field("Game", gameName, true).
201			AttachImgURL(imgURL).
202			Color(t.Conf.General.EmbedColor)
203			if s.CustomMessage != "" {
204			emb.Content = s.CustomMessage
205			} else {
206			emb.Content = fmt.Sprintf(t.Conf.GetLocaleLang("twitch_online", stream.Language), s.Name, s.Login)
			0 ignored issues – show introduced 2019-03-25 06:21 UTC by Report Bug Copy Issue Report can't check non-constant format in call to Sprintf Loading history...
207			}
208			_, _ = t.Discord.ChannelMessageSendComplex(s.Channel, emb.MessageSend)
209			}
210			} else {
211			if s.IsOnline == true {
212			t.Guilds[s.Guild].Streams[s.Login].IsOnline = false
213			t.DB.UpdateStream(s)
214			}
215			}
216			}
217			}
218			}
219
220			// AddStreamer adds new streamer to list
221			func (t *Twitch) AddStreamer(guild, channel, login, message string) (string, error) {
222			if g, ok := t.Guilds[guild]; ok {
223			if g.Streams == nil {
224			t.Guilds[guild].Streams = make(map[string]*TwitchStream)
225			}
226			for _, s := range g.Streams {
227			if s.Guild == guild && s.Login == login {
228			return "", errors.New("streamer already exists")
229			}
230			}
231			var oauthToken = t.OAuthToken()
232			timeout := time.Duration(time.Duration(1) * time.Second)
233			client := &http.Client{
234			Timeout: time.Duration(timeout),
235			}
236			req, _ := http.NewRequest("GET", fmt.Sprintf("https://api.twitch.tv/helix/users?login=%v", login), nil)
237			req.Header.Add("Client-ID", t.Conf.Twitch.ClientID)
238			req.Header.Add("Authorization", "Bearer "+oauthToken)
239			resp, err := client.Do(req)
240			var result TwitchUserResult
241			if err == nil {
242			err = json.NewDecoder(resp.Body).Decode(&result)
243			if err != nil {
244			return "", errors.New("parsing streamer error")
245			}
246			if len(result.Data) > 0 {
247			stream := TwitchStream{}
248			stream.Login = login
249			stream.Channel = channel
250			stream.Guild = guild
251			stream.UserID = result.Data[0].ID
252			if result.Data[0].Name == "" {
253			stream.Name = login
254			} else {
255			stream.Name = result.Data[0].Name
256			}
257			stream.ProfileImageURL = result.Data[0].ProfileImgURL
258			stream.CustomMessage = message
259			t.Guilds[guild].Streams[login] = &stream
260			t.DB.AddStream(&stream)
261			} else {
262			return "", errors.New("streamer not found")
263			}
264			} else {
265			return "", errors.New("getting streamer error")
266			}
267			return result.Data[0].Name, nil
268			}
269			return "", errors.New("guild not found")
270			}
271
272			// RemoveStreamer removes streamer from list
273			func (t *Twitch) RemoveStreamer(login, guild string) error {
274			complete := false
275			if g, ok := t.Guilds[guild]; ok {
276			if g.Streams != nil {
277			if t.Guilds[guild].Streams[login] != nil {
278			if g.Streams[login].Login == login && g.Streams[login].Guild == guild {
279			t.DB.RemoveStream(g.Streams[login])
280			delete(t.Guilds[guild].Streams, login)
281			complete = true
282			}
283			}
284			}
285			} else {
286			return errors.New("guild not found")
287			}
288			if !complete {
289			return errors.New("streamer not found")
290			}
291			return nil
292			}
293

FlameInTheDark / dtbot

Push — master ( afa16b...318446 )

bot.*Twitch.OAuthToken A

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