Update vendor (bwmarrin/discordgo) apiv6

12 files changed, 467 insertions, 111 deletions

diff --git a/vendor/github.com/bwmarrin/discordgo/discord.go b/vendor/github.com/bwmarrin/discordgo/discord.go
index 2f0b6fd4..40eabe18 100644
--- a/vendor/github.com/bwmarrin/discordgo/discord.go
+++ b/vendor/github.com/bwmarrin/discordgo/discord.go
@@ -21,7 +21,7 @@ import (
 )
 
 // VERSION of DiscordGo, follows Semantic Versioning. (http://semver.org/)
-const VERSION = "0.16.0"
+const VERSION = "0.17.0"
 
 // ErrMFA will be risen by New when the user has 2FA.
 var ErrMFA = errors.New("account has 2FA enabled")
@@ -59,6 +59,7 @@ func New(args ...interface{}) (s *Session, err error) {
 		MaxRestRetries:         3,
 		Client:                 &http.Client{Timeout: (20 * time.Second)},
 		sequence:               new(int64),
+		LastHeartbeatAck:       time.Now().UTC(),
 	}
 
 	// If no arguments are passed return the empty Session interface.
diff --git a/vendor/github.com/bwmarrin/discordgo/endpoints.go b/vendor/github.com/bwmarrin/discordgo/endpoints.go
index 96bcf28b..b10f9589 100644
--- a/vendor/github.com/bwmarrin/discordgo/endpoints.go
+++ b/vendor/github.com/bwmarrin/discordgo/endpoints.go
@@ -11,6 +11,9 @@
 
 package discordgo
 
+// APIVersion is the Discord API version used for the REST and Websocket API.
+var APIVersion = "6"
+
 // Known Discord API Endpoints.
 var (
 	EndpointStatus     = "https://status.discordapp.com/api/v2/"
@@ -18,13 +21,14 @@ var (
 	EndpointSmActive   = EndpointSm + "active.json"
 	EndpointSmUpcoming = EndpointSm + "upcoming.json"
 
-	EndpointDiscord  = "https://discordapp.com/"
-	EndpointAPI      = EndpointDiscord + "api/"
-	EndpointGuilds   = EndpointAPI + "guilds/"
-	EndpointChannels = EndpointAPI + "channels/"
-	EndpointUsers    = EndpointAPI + "users/"
-	EndpointGateway  = EndpointAPI + "gateway"
-	EndpointWebhooks = EndpointAPI + "webhooks/"
+	EndpointDiscord    = "https://discordapp.com/"
+	EndpointAPI        = EndpointDiscord + "api/v" + APIVersion + "/"
+	EndpointGuilds     = EndpointAPI + "guilds/"
+	EndpointChannels   = EndpointAPI + "channels/"
+	EndpointUsers      = EndpointAPI + "users/"
+	EndpointGateway    = EndpointAPI + "gateway"
+	EndpointGatewayBot = EndpointGateway + "/bot"
+	EndpointWebhooks   = EndpointAPI + "webhooks/"
 
 	EndpointCDN             = "https://cdn.discordapp.com/"
 	EndpointCDNAttachments  = EndpointCDN + "attachments/"
@@ -54,16 +58,17 @@ var (
 	EndpointReport       = EndpointAPI + "report"
 	EndpointIntegrations = EndpointAPI + "integrations"
 
-	EndpointUser              = func(uID string) string { return EndpointUsers + uID }
-	EndpointUserAvatar        = func(uID, aID string) string { return EndpointCDNAvatars + uID + "/" + aID + ".png" }
-	EndpointUserSettings      = func(uID string) string { return EndpointUsers + uID + "/settings" }
-	EndpointUserGuilds        = func(uID string) string { return EndpointUsers + uID + "/guilds" }
-	EndpointUserGuild         = func(uID, gID string) string { return EndpointUsers + uID + "/guilds/" + gID }
-	EndpointUserGuildSettings = func(uID, gID string) string { return EndpointUsers + uID + "/guilds/" + gID + "/settings" }
-	EndpointUserChannels      = func(uID string) string { return EndpointUsers + uID + "/channels" }
-	EndpointUserDevices       = func(uID string) string { return EndpointUsers + uID + "/devices" }
-	EndpointUserConnections   = func(uID string) string { return EndpointUsers + uID + "/connections" }
-	EndpointUserNotes         = func(uID string) string { return EndpointUsers + "@me/notes/" + uID }
+	EndpointUser               = func(uID string) string { return EndpointUsers + uID }
+	EndpointUserAvatar         = func(uID, aID string) string { return EndpointCDNAvatars + uID + "/" + aID + ".png" }
+	EndpointUserAvatarAnimated = func(uID, aID string) string { return EndpointCDNAvatars + uID + "/" + aID + ".gif" }
+	EndpointUserSettings       = func(uID string) string { return EndpointUsers + uID + "/settings" }
+	EndpointUserGuilds         = func(uID string) string { return EndpointUsers + uID + "/guilds" }
+	EndpointUserGuild          = func(uID, gID string) string { return EndpointUsers + uID + "/guilds/" + gID }
+	EndpointUserGuildSettings  = func(uID, gID string) string { return EndpointUsers + uID + "/guilds/" + gID + "/settings" }
+	EndpointUserChannels       = func(uID string) string { return EndpointUsers + uID + "/channels" }
+	EndpointUserDevices        = func(uID string) string { return EndpointUsers + uID + "/devices" }
+	EndpointUserConnections    = func(uID string) string { return EndpointUsers + uID + "/connections" }
+	EndpointUserNotes          = func(uID string) string { return EndpointUsers + "@me/notes/" + uID }
 
 	EndpointGuild                = func(gID string) string { return EndpointGuilds + gID }
 	EndpointGuildInivtes         = func(gID string) string { return EndpointGuilds + gID + "/invites" }
@@ -103,6 +108,9 @@ var (
 	EndpointWebhook         = func(wID string) string { return EndpointWebhooks + wID }
 	EndpointWebhookToken    = func(wID, token string) string { return EndpointWebhooks + wID + "/" + token }
 
+	EndpointMessageReactionsAll = func(cID, mID string) string {
+		return EndpointChannelMessage(cID, mID) + "/reactions"
+	}
 	EndpointMessageReactions = func(cID, mID, eID string) string {
 		return EndpointChannelMessage(cID, mID) + "/reactions/" + eID
 	}
diff --git a/vendor/github.com/bwmarrin/discordgo/event.go b/vendor/github.com/bwmarrin/discordgo/event.go
index 906c2aa8..3a03f46d 100644
--- a/vendor/github.com/bwmarrin/discordgo/event.go
+++ b/vendor/github.com/bwmarrin/discordgo/event.go
@@ -156,12 +156,20 @@ func (s *Session) removeEventHandlerInstance(t string, ehi *eventHandlerInstance
 // Handles calling permanent and once handlers for an event type.
 func (s *Session) handle(t string, i interface{}) {
 	for _, eh := range s.handlers[t] {
-		go eh.eventHandler.Handle(s, i)
+		if s.SyncEvents {
+			eh.eventHandler.Handle(s, i)
+		} else {
+			go eh.eventHandler.Handle(s, i)
+		}
 	}
 
 	if len(s.onceHandlers[t]) > 0 {
 		for _, eh := range s.onceHandlers[t] {
-			go eh.eventHandler.Handle(s, i)
+			if s.SyncEvents {
+				eh.eventHandler.Handle(s, i)
+			} else {
+				go eh.eventHandler.Handle(s, i)
+			}
 		}
 		s.onceHandlers[t] = nil
 	}
@@ -216,7 +224,7 @@ func (s *Session) onInterface(i interface{}) {
 	case *VoiceStateUpdate:
 		go s.onVoiceStateUpdate(t)
 	}
-	err := s.State.onInterface(s, i)
+	err := s.State.OnInterface(s, i)
 	if err != nil {
 		s.log(LogDebug, "error dispatching internal event, %s", err)
 	}
diff --git a/vendor/github.com/bwmarrin/discordgo/message.go b/vendor/github.com/bwmarrin/discordgo/message.go
index 13c2da07..19345b95 100644
--- a/vendor/github.com/bwmarrin/discordgo/message.go
+++ b/vendor/github.com/bwmarrin/discordgo/message.go
@@ -10,9 +10,24 @@
 package discordgo
 
 import (
-	"fmt"
 	"io"
 	"regexp"
+	"strings"
+)
+
+// MessageType is the type of Message
+type MessageType int
+
+// Block contains the valid known MessageType values
+const (
+	MessageTypeDefault MessageType = iota
+	MessageTypeRecipientAdd
+	MessageTypeRecipientRemove
+	MessageTypeCall
+	MessageTypeChannelNameChange
+	MessageTypeChannelIconChange
+	MessageTypeChannelPinnedMessage
+	MessageTypeGuildMemberJoin
 )
 
 // A Message stores all data related to a specific Discord message.
@@ -30,12 +45,14 @@ type Message struct {
 	Embeds          []*MessageEmbed      `json:"embeds"`
 	Mentions        []*User              `json:"mentions"`
 	Reactions       []*MessageReactions  `json:"reactions"`
+	Type            MessageType          `json:"type"`
 }
 
 // File stores info about files you e.g. send in messages.
 type File struct {
-	Name   string
-	Reader io.Reader
+	Name        string
+	ContentType string
+	Reader      io.Reader
 }
 
 // MessageSend stores all parameters you can send with ChannelMessageSendComplex.
@@ -43,7 +60,10 @@ type MessageSend struct {
 	Content string        `json:"content,omitempty"`
 	Embed   *MessageEmbed `json:"embed,omitempty"`
 	Tts     bool          `json:"tts"`
-	File    *File         `json:"file"`
+	Files   []*File       `json:"-"`
+
+	// TODO: Remove this when compatibility is not required.
+	File *File `json:"-"`
 }
 
 // MessageEdit is used to chain parameters via ChannelMessageEditComplex, which
@@ -168,13 +188,65 @@ type MessageReactions struct {
 
 // ContentWithMentionsReplaced will replace all @<id> mentions with the
 // username of the mention.
-func (m *Message) ContentWithMentionsReplaced() string {
-	if m.Mentions == nil {
-		return m.Content
+func (m *Message) ContentWithMentionsReplaced() (content string) {
+	content = m.Content
+
+	for _, user := range m.Mentions {
+		content = strings.NewReplacer(
+			"<@"+user.ID+">", "@"+user.Username,
+			"<@!"+user.ID+">", "@"+user.Username,
+		).Replace(content)
+	}
+	return
+}
+
+var patternChannels = regexp.MustCompile("<#[^>]*>")
+
+// ContentWithMoreMentionsReplaced will replace all @<id> mentions with the
+// username of the mention, but also role IDs and more.
+func (m *Message) ContentWithMoreMentionsReplaced(s *Session) (content string, err error) {
+	content = m.Content
+
+	if !s.StateEnabled {
+		content = m.ContentWithMentionsReplaced()
+		return
 	}
-	content := m.Content
+
+	channel, err := s.State.Channel(m.ChannelID)
+	if err != nil {
+		content = m.ContentWithMentionsReplaced()
+		return
+	}
+
 	for _, user := range m.Mentions {
-		content = regexp.MustCompile(fmt.Sprintf("<@!?(%s)>", user.ID)).ReplaceAllString(content, "@"+user.Username)
+		nick := user.Username
+
+		member, err := s.State.Member(channel.GuildID, user.ID)
+		if err == nil && member.Nick != "" {
+			nick = member.Nick
+		}
+
+		content = strings.NewReplacer(
+			"<@"+user.ID+">", "@"+user.Username,
+			"<@!"+user.ID+">", "@"+nick,
+		).Replace(content)
 	}
-	return content
+	for _, roleID := range m.MentionRoles {
+		role, err := s.State.Role(channel.GuildID, roleID)
+		if err != nil || !role.Mentionable {
+			continue
+		}
+
+		content = strings.Replace(content, "<&"+role.ID+">", "@"+role.Name, -1)
+	}
+
+	content = patternChannels.ReplaceAllStringFunc(content, func(mention string) string {
+		channel, err := s.State.Channel(mention[2 : len(mention)-1])
+		if err != nil || channel.Type == ChannelTypeGuildVoice {
+			return mention
+		}
+
+		return "#" + channel.Name
+	})
+	return
 }
diff --git a/vendor/github.com/bwmarrin/discordgo/ratelimit.go b/vendor/github.com/bwmarrin/discordgo/ratelimit.go
index 876e98a9..223c0d04 100644
--- a/vendor/github.com/bwmarrin/discordgo/ratelimit.go
+++ b/vendor/github.com/bwmarrin/discordgo/ratelimit.go
@@ -3,17 +3,26 @@ package discordgo
 import (
 	"net/http"
 	"strconv"
+	"strings"
 	"sync"
 	"sync/atomic"
 	"time"
 )
 
+// customRateLimit holds information for defining a custom rate limit
+type customRateLimit struct {
+	suffix   string
+	requests int
+	reset    time.Duration
+}
+
 // RateLimiter holds all ratelimit buckets
 type RateLimiter struct {
 	sync.Mutex
-	global          *int64
-	buckets         map[string]*Bucket
-	globalRateLimit time.Duration
+	global           *int64
+	buckets          map[string]*Bucket
+	globalRateLimit  time.Duration
+	customRateLimits []*customRateLimit
 }
 
 // NewRatelimiter returns a new RateLimiter
@@ -22,6 +31,13 @@ func NewRatelimiter() *RateLimiter {
 	return &RateLimiter{
 		buckets: make(map[string]*Bucket),
 		global:  new(int64),
+		customRateLimits: []*customRateLimit{
+			&customRateLimit{
+				suffix:   "//reactions//",
+				requests: 1,
+				reset:    200 * time.Millisecond,
+			},
+		},
 	}
 }
 
@@ -40,6 +56,14 @@ func (r *RateLimiter) getBucket(key string) *Bucket {
 		global:    r.global,
 	}
 
+	// Check if there is a custom ratelimit set for this bucket ID.
+	for _, rl := range r.customRateLimits {
+		if strings.HasSuffix(b.Key, rl.suffix) {
+			b.customRateLimit = rl
+			break
+		}
+	}
+
 	r.buckets[key] = b
 	return b
 }
@@ -76,13 +100,28 @@ type Bucket struct {
 	limit     int
 	reset     time.Time
 	global    *int64
+
+	lastReset       time.Time
+	customRateLimit *customRateLimit
 }
 
 // Release unlocks the bucket and reads the headers to update the buckets ratelimit info
 // and locks up the whole thing in case if there's a global ratelimit.
 func (b *Bucket) Release(headers http.Header) error {
-
 	defer b.Unlock()
+
+	// Check if the bucket uses a custom ratelimiter
+	if rl := b.customRateLimit; rl != nil {
+		if time.Now().Sub(b.lastReset) >= rl.reset {
+			b.remaining = rl.requests - 1
+			b.lastReset = time.Now()
+		}
+		if b.remaining < 1 {
+			b.reset = time.Now().Add(rl.reset)
+		}
+		return nil
+	}
+
 	if headers == nil {
 		return nil
 	}
diff --git a/vendor/github.com/bwmarrin/discordgo/restapi.go b/vendor/github.com/bwmarrin/discordgo/restapi.go
index cb482e68..836e4a41 100644
--- a/vendor/github.com/bwmarrin/discordgo/restapi.go
+++ b/vendor/github.com/bwmarrin/discordgo/restapi.go
@@ -23,6 +23,7 @@ import (
 	"log"
 	"mime/multipart"
 	"net/http"
+	"net/textproto"
 	"net/url"
 	"strconv"
 	"strings"
@@ -309,8 +310,8 @@ func (s *Session) UserUpdate(email, password, username, avatar, newPassword stri
 	// If left blank, avatar will be set to null/blank
 
 	data := struct {
-		Email       string `json:"email"`
-		Password    string `json:"password"`
+		Email       string `json:"email,omitempty"`
+		Password    string `json:"password,omitempty"`
 		Username    string `json:"username,omitempty"`
 		Avatar      string `json:"avatar,omitempty"`
 		NewPassword string `json:"new_password,omitempty"`
@@ -763,7 +764,21 @@ func (s *Session) GuildMember(guildID, userID string) (st *Member, err error) {
 // userID    : The ID of a User
 func (s *Session) GuildMemberDelete(guildID, userID string) (err error) {
 
-	_, err = s.RequestWithBucketID("DELETE", EndpointGuildMember(guildID, userID), nil, EndpointGuildMember(guildID, ""))
+	return s.GuildMemberDeleteWithReason(guildID, userID, "")
+}
+
+// GuildMemberDeleteWithReason removes the given user from the given guild.
+// guildID   : The ID of a Guild.
+// userID    : The ID of a User
+// reason    : The reason for the kick
+func (s *Session) GuildMemberDeleteWithReason(guildID, userID, reason string) (err error) {
+
+	uri := EndpointGuildMember(guildID, userID)
+	if reason != "" {
+		uri += "?reason=" + url.QueryEscape(reason)
+	}
+
+	_, err = s.RequestWithBucketID("DELETE", uri, nil, EndpointGuildMember(guildID, ""))
 	return
 }
 
@@ -1316,6 +1331,8 @@ func (s *Session) ChannelMessageSend(channelID string, content string) (*Message
 	})
 }
 
+var quoteEscaper = strings.NewReplacer("\\", "\\\\", `"`, "\\\"")
+
 // ChannelMessageSendComplex sends a message to the given channel.
 // channelID : The ID of a Channel.
 // data      : The message struct to send.
@@ -1326,48 +1343,62 @@ func (s *Session) ChannelMessageSendComplex(channelID string, data *MessageSend)
 
 	endpoint := EndpointChannelMessages(channelID)
 
-	var response []byte
+	// TODO: Remove this when compatibility is not required.
+	files := data.Files
 	if data.File != nil {
+		if files == nil {
+			files = []*File{data.File}
+		} else {
+			err = fmt.Errorf("cannot specify both File and Files")
+			return
+		}
+	}
+
+	var response []byte
+	if len(files) > 0 {
 		body := &bytes.Buffer{}
 		bodywriter := multipart.NewWriter(body)
 
-		// What's a better way of doing this? Reflect? Generator? I'm open to suggestions
+		var payload []byte
+		payload, err = json.Marshal(data)
+		if err != nil {
+			return
+		}
+
+		var p io.Writer
 
-		if data.Content != "" {
-			if err = bodywriter.WriteField("content", data.Content); err != nil {
-				return
-			}
+		h := make(textproto.MIMEHeader)
+		h.Set("Content-Disposition", `form-data; name="payload_json"`)
+		h.Set("Content-Type", "application/json")
+
+		p, err = bodywriter.CreatePart(h)
+		if err != nil {
+			return
 		}
 
-		if data.Embed != nil {
-			var embed []byte
-			embed, err = json.Marshal(data.Embed)
-			if err != nil {
-				return
+		if _, err = p.Write(payload); err != nil {
+			return
+		}
+
+		for i, file := range files {
+			h := make(textproto.MIMEHeader)
+			h.Set("Content-Disposition", fmt.Sprintf(`form-data; name="file%d"; filename="%s"`, i, quoteEscaper.Replace(file.Name)))
+			contentType := file.ContentType
+			if contentType == "" {
+				contentType = "application/octet-stream"
 			}
-			err = bodywriter.WriteField("embed", string(embed))
+			h.Set("Content-Type", contentType)
+
+			p, err = bodywriter.CreatePart(h)
 			if err != nil {
 				return
 			}
-		}
 
-		if data.Tts {
-			if err = bodywriter.WriteField("tts", "true"); err != nil {
+			if _, err = io.Copy(p, file.Reader); err != nil {
 				return
 			}
 		}
 
-		var writer io.Writer
-		writer, err = bodywriter.CreateFormFile("file", data.File.Name)
-		if err != nil {
-			return
-		}
-
-		_, err = io.Copy(writer, data.File.Reader)
-		if err != nil {
-			return
-		}
-
 		err = bodywriter.Close()
 		if err != nil {
 			return
@@ -1685,6 +1716,28 @@ func (s *Session) Gateway() (gateway string, err error) {
 	return
 }
 
+// GatewayBot returns the websocket Gateway address and the recommended number of shards
+func (s *Session) GatewayBot() (st *GatewayBotResponse, err error) {
+
+	response, err := s.RequestWithBucketID("GET", EndpointGatewayBot, nil, EndpointGatewayBot)
+	if err != nil {
+		return
+	}
+
+	err = unmarshal(response, &st)
+	if err != nil {
+		return
+	}
+
+	// Ensure the gateway always has a trailing slash.
+	// MacOS will fail to connect if we add query params without a trailing slash on the base domain.
+	if !strings.HasSuffix(st.URL, "/") {
+		st.URL += "/"
+	}
+
+	return
+}
+
 // Functions specific to Webhooks
 
 // WebhookCreate returns a new Webhook.
@@ -1810,14 +1863,9 @@ func (s *Session) WebhookEditWithToken(webhookID, token, name, avatar string) (s
 
 // WebhookDelete deletes a webhook for a given ID
 // webhookID: The ID of a webhook.
-func (s *Session) WebhookDelete(webhookID string) (st *Webhook, err error) {
+func (s *Session) WebhookDelete(webhookID string) (err error) {
 
-	body, err := s.RequestWithBucketID("DELETE", EndpointWebhook(webhookID), nil, EndpointWebhooks)
-	if err != nil {
-		return
-	}
-
-	err = unmarshal(body, &st)
+	_, err = s.RequestWithBucketID("DELETE", EndpointWebhook(webhookID), nil, EndpointWebhooks)
 
 	return
 }
@@ -1875,6 +1923,16 @@ func (s *Session) MessageReactionRemove(channelID, messageID, emojiID, userID st
 	return err
 }
 
+// MessageReactionsRemoveAll deletes all reactions from a message
+// channelID : The channel ID
+// messageID : The message ID.
+func (s *Session) MessageReactionsRemoveAll(channelID, messageID string) error {
+
+	_, err := s.RequestWithBucketID("DELETE", EndpointMessageReactionsAll(channelID, messageID), nil, EndpointMessageReactionsAll(channelID, messageID))
+
+	return err
+}
+
 // MessageReactions gets all the users reactions for a specific emoji.
 // channelID : The channel ID.
 // messageID : The message ID.
diff --git a/vendor/github.com/bwmarrin/discordgo/state.go b/vendor/github.com/bwmarrin/discordgo/state.go
index 7400ef62..35a8e757 100644
--- a/vendor/github.com/bwmarrin/discordgo/state.go
+++ b/vendor/github.com/bwmarrin/discordgo/state.go
@@ -42,6 +42,7 @@ type State struct {
 
 	guildMap   map[string]*Guild
 	channelMap map[string]*Channel
+	memberMap  map[string]map[string]*Member
 }
 
 // NewState creates an empty state.
@@ -59,9 +60,18 @@ func NewState() *State {
 		TrackPresences: true,
 		guildMap:       make(map[string]*Guild),
 		channelMap:     make(map[string]*Channel),
+		memberMap:      make(map[string]map[string]*Member),
 	}
 }
 
+func (s *State) createMemberMap(guild *Guild) {
+	members := make(map[string]*Member)
+	for _, m := range guild.Members {
+		members[m.User.ID] = m
+	}
+	s.memberMap[guild.ID] = members
+}
+
 // GuildAdd adds a guild to the current world state, or
 // updates it if it already exists.
 func (s *State) GuildAdd(guild *Guild) error {
@@ -77,6 +87,14 @@ func (s *State) GuildAdd(guild *Guild) error {
 		s.channelMap[c.ID] = c
 	}
 
+	// If this guild contains a new member slice, we must regenerate the member map so the pointers stay valid
+	if guild.Members != nil {
+		s.createMemberMap(guild)
+	} else if _, ok := s.memberMap[guild.ID]; !ok {
+		// Even if we have no new member slice, we still initialize the member map for this guild if it doesn't exist
+		s.memberMap[guild.ID] = make(map[string]*Member)
+	}
+
 	if g, ok := s.guildMap[guild.ID]; ok {
 		// We are about to replace `g` in the state with `guild`, but first we need to
 		// make sure we preserve any fields that the `guild` doesn't contain from `g`.
@@ -271,14 +289,19 @@ func (s *State) MemberAdd(member *Member) error {
 	s.Lock()
 	defer s.Unlock()
 
-	for i, m := range guild.Members {
-		if m.User.ID == member.User.ID {
-			guild.Members[i] = member
-			return nil
-		}
+	members, ok := s.memberMap[member.GuildID]
+	if !ok {
+		return ErrStateNotFound
+	}
+
+	m, ok := members[member.User.ID]
+	if !ok {
+		members[member.User.ID] = member
+		guild.Members = append(guild.Members, member)
+	} else {
+		*m = *member // Update the actual data, which will also update the member pointer in the slice
 	}
 
-	guild.Members = append(guild.Members, member)
 	return nil
 }
 
@@ -296,6 +319,17 @@ func (s *State) MemberRemove(member *Member) error {
 	s.Lock()
 	defer s.Unlock()
 
+	members, ok := s.memberMap[member.GuildID]
+	if !ok {
+		return ErrStateNotFound
+	}
+
+	_, ok = members[member.User.ID]
+	if !ok {
+		return ErrStateNotFound
+	}
+	delete(members, member.User.ID)
+
 	for i, m := range guild.Members {
 		if m.User.ID == member.User.ID {
 			guild.Members = append(guild.Members[:i], guild.Members[i+1:]...)
@@ -312,18 +346,17 @@ func (s *State) Member(guildID, userID string) (*Member, error) {
 		return nil, ErrNilState
 	}
 
-	guild, err := s.Guild(guildID)
-	if err != nil {
-		return nil, err
-	}
-
 	s.RLock()
 	defer s.RUnlock()
 
-	for _, m := range guild.Members {
-		if m.User.ID == userID {
-			return m, nil
-		}
+	members, ok := s.memberMap[guildID]
+	if !ok {
+		return nil, ErrStateNotFound
+	}
+
+	m, ok := members[userID]
+	if ok {
+		return m, nil
 	}
 
 	return nil, ErrStateNotFound
@@ -427,7 +460,7 @@ func (s *State) ChannelAdd(channel *Channel) error {
 		return nil
 	}
 
-	if channel.IsPrivate {
+	if channel.Type == ChannelTypeDM || channel.Type == ChannelTypeGroupDM {
 		s.PrivateChannels = append(s.PrivateChannels, channel)
 	} else {
 		guild, ok := s.guildMap[channel.GuildID]
@@ -454,7 +487,7 @@ func (s *State) ChannelRemove(channel *Channel) error {
 		return err
 	}
 
-	if channel.IsPrivate {
+	if channel.Type == ChannelTypeDM || channel.Type == ChannelTypeGroupDM {
 		s.Lock()
 		defer s.Unlock()
 
@@ -735,6 +768,7 @@ func (s *State) onReady(se *Session, r *Ready) (err error) {
 
 	for _, g := range s.Guilds {
 		s.guildMap[g.ID] = g
+		s.createMemberMap(g)
 
 		for _, c := range g.Channels {
 			s.channelMap[c.ID] = c
@@ -748,8 +782,8 @@ func (s *State) onReady(se *Session, r *Ready) (err error) {
 	return nil
 }
 
-// onInterface handles all events related to states.
-func (s *State) onInterface(se *Session, i interface{}) (err error) {
+// OnInterface handles all events related to states.
+func (s *State) OnInterface(se *Session, i interface{}) (err error) {
 	if s == nil {
 		return ErrNilState
 	}
diff --git a/vendor/github.com/bwmarrin/discordgo/structs.go b/vendor/github.com/bwmarrin/discordgo/structs.go
index 32f435ce..c3e39566 100644
--- a/vendor/github.com/bwmarrin/discordgo/structs.go
+++ b/vendor/github.com/bwmarrin/discordgo/structs.go
@@ -50,6 +50,10 @@ type Session struct {
 	// active guilds and the members of the guilds.
 	StateEnabled bool
 
+	// Whether or not to call event handlers synchronously.
+	// e.g false = launch event handlers in their own goroutines.
+	SyncEvents bool
+
 	// Exposed but should not be modified by User.
 
 	// Whether the Data Websocket is ready
@@ -78,6 +82,9 @@ type Session struct {
 	// The http client used for REST requests
 	Client *http.Client
 
+	// Stores the last HeartbeatAck that was recieved (in UTC)
+	LastHeartbeatAck time.Time
+
 	// Event handlers
 	handlersMu   sync.RWMutex
 	handlers     map[string][]*eventHandlerInstance
@@ -141,18 +148,30 @@ type Invite struct {
 	Temporary bool      `json:"temporary"`
 }
 
+// ChannelType is the type of a Channel
+type ChannelType int
+
+// Block contains known ChannelType values
+const (
+	ChannelTypeGuildText ChannelType = iota
+	ChannelTypeDM
+	ChannelTypeGuildVoice
+	ChannelTypeGroupDM
+	ChannelTypeGuildCategory
+)
+
 // A Channel holds all data related to an individual Discord channel.
 type Channel struct {
 	ID                   string                 `json:"id"`
 	GuildID              string                 `json:"guild_id"`
 	Name                 string                 `json:"name"`
 	Topic                string                 `json:"topic"`
-	Type                 string                 `json:"type"`
+	Type                 ChannelType            `json:"type"`
 	LastMessageID        string                 `json:"last_message_id"`
+	NSFW                 bool                   `json:"nsfw"`
 	Position             int                    `json:"position"`
 	Bitrate              int                    `json:"bitrate"`
-	IsPrivate            bool                   `json:"is_private"`
-	Recipient            *User                  `json:"recipient"`
+	Recipients           []*User                `json:"recipient"`
 	Messages             []*Message             `json:"-"`
 	PermissionOverwrites []*PermissionOverwrite `json:"permission_overwrites"`
 }
@@ -292,13 +311,14 @@ type Presence struct {
 	Game   *Game    `json:"game"`
 	Nick   string   `json:"nick"`
 	Roles  []string `json:"roles"`
+	Since  *int     `json:"since"`
 }
 
 // A Game struct holds the name of the "playing .." game for a user
 type Game struct {
 	Name string `json:"name"`
 	Type int    `json:"type"`
-	URL  string `json:"url"`
+	URL  string `json:"url,omitempty"`
 }
 
 // UnmarshalJSON unmarshals json to Game struct
@@ -509,6 +529,12 @@ type MessageReaction struct {
 	ChannelID string `json:"channel_id"`
 }
 
+// GatewayBotResponse stores the data for the gateway/bot response
+type GatewayBotResponse struct {
+	URL    string `json:"url"`
+	Shards int    `json:"shards"`
+}
+
 // Constants for the different bit offsets of text channel permissions
 const (
 	PermissionReadMessages = 1 << (iota + 10)
@@ -579,3 +605,56 @@ const (
 		PermissionManageServer |
 		PermissionAdministrator
 )
+
+// Block contains Discord JSON Error Response codes
+const (
+	ErrCodeUnknownAccount     = 10001
+	ErrCodeUnknownApplication = 10002
+	ErrCodeUnknownChannel     = 10003
+	ErrCodeUnknownGuild       = 10004
+	ErrCodeUnknownIntegration = 10005
+	ErrCodeUnknownInvite      = 10006
+	ErrCodeUnknownMember      = 10007
+	ErrCodeUnknownMessage     = 10008
+	ErrCodeUnknownOverwrite   = 10009
+	ErrCodeUnknownProvider    = 10010
+	ErrCodeUnknownRole        = 10011
+	ErrCodeUnknownToken       = 10012
+	ErrCodeUnknownUser        = 10013
+	ErrCodeUnknownEmoji       = 10014
+
+	ErrCodeBotsCannotUseEndpoint  = 20001
+	ErrCodeOnlyBotsCanUseEndpoint = 20002
+
+	ErrCodeMaximumGuildsReached     = 30001
+	ErrCodeMaximumFriendsReached    = 30002
+	ErrCodeMaximumPinsReached       = 30003
+	ErrCodeMaximumGuildRolesReached = 30005
+	ErrCodeTooManyReactions         = 30010
+
+	ErrCodeUnauthorized = 40001
+
+	ErrCodeMissingAccess                             = 50001
+	ErrCodeInvalidAccountType                        = 50002
+	ErrCodeCannotExecuteActionOnDMChannel            = 50003
+	ErrCodeEmbedCisabled                             = 50004
+	ErrCodeCannotEditFromAnotherUser                 = 50005
+	ErrCodeCannotSendEmptyMessage                    = 50006
+	ErrCodeCannotSendMessagesToThisUser              = 50007
+	ErrCodeCannotSendMessagesInVoiceChannel          = 50008
+	ErrCodeChannelVerificationLevelTooHigh           = 50009
+	ErrCodeOAuth2ApplicationDoesNotHaveBot           = 50010
+	ErrCodeOAuth2ApplicationLimitReached             = 50011
+	ErrCodeInvalidOAuthState                         = 50012
+	ErrCodeMissingPermissions                        = 50013
+	ErrCodeInvalidAuthenticationToken                = 50014
+	ErrCodeNoteTooLong                               = 50015
+	ErrCodeTooFewOrTooManyMessagesToDelete           = 50016
+	ErrCodeCanOnlyPinMessageToOriginatingChannel     = 50019
+	ErrCodeCannotExecuteActionOnSystemMessage        = 50021
+	ErrCodeMessageProvidedTooOldForBulkDelete        = 50034
+	ErrCodeInvalidFormBody                           = 50035
+	ErrCodeInviteAcceptedToGuildApplicationsBotNotIn = 50036
+
+	ErrCodeReactionBlocked = 90001
+)
diff --git a/vendor/github.com/bwmarrin/discordgo/user.go b/vendor/github.com/bwmarrin/discordgo/user.go
index b3a7e4b2..76abdd1d 100644
--- a/vendor/github.com/bwmarrin/discordgo/user.go
+++ b/vendor/github.com/bwmarrin/discordgo/user.go
@@ -1,6 +1,9 @@
 package discordgo
 
-import "fmt"
+import (
+	"fmt"
+	"strings"
+)
 
 // A User stores all data for an individual Discord user.
 type User struct {
@@ -24,3 +27,16 @@ func (u *User) String() string {
 func (u *User) Mention() string {
 	return fmt.Sprintf("<@%s>", u.ID)
 }
+
+// AvatarURL returns a URL to the user's avatar.
+//		size:     The size of the user's avatar as a power of two
+func (u *User) AvatarURL(size string) string {
+	var URL string
+	if strings.HasPrefix(u.Avatar, "a_") {
+		URL = EndpointUserAvatarAnimated(u.ID, u.Avatar)
+	} else {
+		URL = EndpointUserAvatar(u.ID, u.Avatar)
+	}
+
+	return URL + "?size=" + size
+}
diff --git a/vendor/github.com/bwmarrin/discordgo/voice.go b/vendor/github.com/bwmarrin/discordgo/voice.go
index da7b8c90..8f033aa0 100644
--- a/vendor/github.com/bwmarrin/discordgo/voice.go
+++ b/vendor/github.com/bwmarrin/discordgo/voice.go
@@ -796,7 +796,7 @@ func (v *VoiceConnection) opusReceiver(udpConn *net.UDPConn, close <-chan struct
 		}
 
 		// For now, skip anything except audio.
-		if rlen < 12 || recvbuf[0] != 0x80 {
+		if rlen < 12 || (recvbuf[0] != 0x80 && recvbuf[0] != 0x90) {
 			continue
 		}
 
@@ -810,8 +810,17 @@ func (v *VoiceConnection) opusReceiver(udpConn *net.UDPConn, close <-chan struct
 		copy(nonce[:], recvbuf[0:12])
 		p.Opus, _ = secretbox.Open(nil, recvbuf[12:rlen], &nonce, &v.op4.SecretKey)
 
+		if len(p.Opus) > 8 && recvbuf[0] == 0x90 {
+			// Extension bit is set, first 8 bytes is the extended header
+			p.Opus = p.Opus[8:]
+		}
+
 		if c != nil {
-			c <- &p
+			select {
+			case c <- &p:
+			case <-close:
+				return
+			}
 		}
 	}
 }
diff --git a/vendor/github.com/bwmarrin/discordgo/wsapi.go b/vendor/github.com/bwmarrin/discordgo/wsapi.go
index 09128505..df87092e 100644
--- a/vendor/github.com/bwmarrin/discordgo/wsapi.go
+++ b/vendor/github.com/bwmarrin/discordgo/wsapi.go
@@ -15,7 +15,6 @@ import (
 	"compress/zlib"
 	"encoding/json"
 	"errors"
-	"fmt"
 	"io"
 	"net/http"
 	"runtime"
@@ -87,7 +86,7 @@ func (s *Session) Open() (err error) {
 		}
 
 		// Add the version and encoding to the URL
-		s.gateway = fmt.Sprintf("%s?v=5&encoding=json", s.gateway)
+		s.gateway = s.gateway + "?v=" + APIVersion + "&encoding=json"
 	}
 
 	header := http.Header{}
@@ -131,6 +130,7 @@ func (s *Session) Open() (err error) {
 	// lock.
 	s.listening = make(chan interface{})
 	go s.listen(s.wsConn, s.listening)
+	s.LastHeartbeatAck = time.Now().UTC()
 
 	s.Unlock()
 
@@ -199,10 +199,13 @@ type helloOp struct {
 	Trace             []string      `json:"_trace"`
 }
 
+// FailedHeartbeatAcks is the Number of heartbeat intervals to wait until forcing a connection restart.
+const FailedHeartbeatAcks time.Duration = 5 * time.Millisecond
+
 // heartbeat sends regular heartbeats to Discord so it knows the client
 // is still connected.  If you do not send these heartbeats Discord will
 // disconnect the websocket connection after a few seconds.
-func (s *Session) heartbeat(wsConn *websocket.Conn, listening <-chan interface{}, i time.Duration) {
+func (s *Session) heartbeat(wsConn *websocket.Conn, listening <-chan interface{}, heartbeatIntervalMsec time.Duration) {
 
 	s.log(LogInformational, "called")
 
@@ -211,20 +214,26 @@ func (s *Session) heartbeat(wsConn *websocket.Conn, listening <-chan interface{}
 	}
 
 	var err error
-	ticker := time.NewTicker(i * time.Millisecond)
+	ticker := time.NewTicker(heartbeatIntervalMsec * time.Millisecond)
 	defer ticker.Stop()
 
 	for {
+		s.RLock()
+		last := s.LastHeartbeatAck
+		s.RUnlock()
 		sequence := atomic.LoadInt64(s.sequence)
 		s.log(LogInformational, "sending gateway websocket heartbeat seq %d", sequence)
 		s.wsMutex.Lock()
 		err = wsConn.WriteJSON(heartbeatOp{1, sequence})
 		s.wsMutex.Unlock()
-		if err != nil {
-			s.log(LogError, "error sending heartbeat to gateway %s, %s", s.gateway, err)
-			s.Lock()
-			s.DataReady = false
-			s.Unlock()
+		if err != nil || time.Now().UTC().Sub(last) > (heartbeatIntervalMsec*FailedHeartbeatAcks) {
+			if err != nil {
+				s.log(LogError, "error sending heartbeat to gateway %s, %s", s.gateway, err)
+			} else {
+				s.log(LogError, "haven't gotten a heartbeat ACK in %v, triggering a reconnection", time.Now().UTC().Sub(last))
+			}
+			s.Close()
+			s.reconnect()
 			return
 		}
 		s.Lock()
@@ -241,8 +250,10 @@ func (s *Session) heartbeat(wsConn *websocket.Conn, listening <-chan interface{}
 }
 
 type updateStatusData struct {
-	IdleSince *int  `json:"idle_since"`
-	Game      *Game `json:"game"`
+	IdleSince *int   `json:"since"`
+	Game      *Game  `json:"game"`
+	AFK       bool   `json:"afk"`
+	Status    string `json:"status"`
 }
 
 type updateStatusOp struct {
@@ -265,7 +276,10 @@ func (s *Session) UpdateStreamingStatus(idle int, game string, url string) (err
 		return ErrWSNotFound
 	}
 
-	var usd updateStatusData
+	usd := updateStatusData{
+		Status: "online",
+	}
+
 	if idle > 0 {
 		usd.IdleSince = &idle
 	}
@@ -398,7 +412,10 @@ func (s *Session) onEvent(messageType int, message []byte) {
 	// Reconnect
 	// Must immediately disconnect from gateway and reconnect to new gateway.
 	if e.Operation == 7 {
-		// TODO
+		s.log(LogInformational, "Closing and reconnecting in response to Op7")
+		s.Close()
+		s.reconnect()
+		return
 	}
 
 	// Invalid Session
@@ -426,6 +443,14 @@ func (s *Session) onEvent(messageType int, message []byte) {
 		return
 	}
 
+	if e.Operation == 11 {
+		s.Lock()
+		s.LastHeartbeatAck = time.Now().UTC()
+		s.Unlock()
+		s.log(LogInformational, "got heartbeat ACK")
+		return
+	}
+
 	// Do not try to Dispatch a non-Dispatch Message
 	if e.Operation != 0 {
 		// But we probably should be doing something with them.
@@ -688,6 +713,13 @@ func (s *Session) reconnect() {
 				return
 			}
 
+			// Certain race conditions can call reconnect() twice. If this happens, we
+			// just break out of the reconnect loop
+			if err == ErrWSAlreadyOpen {
+				s.log(LogInformational, "Websocket already exists, no need to reconnect")
+				return
+			}
+
 			s.log(LogError, "error reconnecting to gateway, %s", err)
 
 			<-time.After(wait * time.Second)
diff --git a/vendor/manifest b/vendor/manifest
index d10ffa30..0861b044 100644
--- a/vendor/manifest
+++ b/vendor/manifest
@@ -61,7 +61,7 @@
 			"importpath": "github.com/bwmarrin/discordgo",
 			"repository": "https://github.com/bwmarrin/discordgo",
 			"vcs": "git",
-			"revision": "d420e28024ad527390b43aa7f64e029083e11989",
+			"revision": "2fda7ce223a66a5b70b66987c22c3c94d022ee66",
 			"branch": "master",
 			"notests": true
 		},