Add vk bridge (#1372)

* Add vk bridge

* Vk bridge attachments

* Vk bridge forwarded messages

* Vk bridge sample config and code cleanup

* Vk bridge add vendor

* Vk bridge message edit

* Vk bridge: fix fetching names of other bots

* Vk bridge: code cleanup

* Vk bridge: fix shadows declaration

* Vk bridge: remove UseFileURL

1 files changed, 566 insertions, 0 deletions

diff --git a/vendor/github.com/SevereCloud/vksdk/v2/object/object.go b/vendor/github.com/SevereCloud/vksdk/v2/object/object.go
new file mode 100644
index 00000000..4daf7c07
--- /dev/null
+++ b/vendor/github.com/SevereCloud/vksdk/v2/object/object.go
@@ -0,0 +1,566 @@
+/*
+Package object contains objects for VK.
+
+See more https://vk.com/dev/objects
+*/
+package object // import "github.com/SevereCloud/vksdk/v2/object"
+
+import (
+	"bytes"
+	"encoding/json"
+	"reflect"
+)
+
+// Attachment interface.
+type Attachment interface {
+	ToAttachment() string
+}
+
+// JSONObject interface.
+type JSONObject interface {
+	ToJSON() string
+}
+
+// BaseBoolInt type.
+type BaseBoolInt bool
+
+// UnmarshalJSON func.
+func (b *BaseBoolInt) UnmarshalJSON(data []byte) (err error) {
+	switch {
+	case bytes.Equal(data, []byte("1")), bytes.Equal(data, []byte("true")):
+		*b = true
+	case bytes.Equal(data, []byte("0")), bytes.Equal(data, []byte("false")):
+		*b = false
+	default:
+		// return json error
+		err = &json.UnmarshalTypeError{
+			Value: string(data),
+			Type:  reflect.TypeOf((*BaseBoolInt)(nil)),
+		}
+	}
+
+	return
+}
+
+// BaseCountry struct.
+type BaseCountry struct {
+	ID    int    `json:"id"`
+	Title string `json:"title"`
+}
+
+// BaseObject struct.
+type BaseObject struct {
+	ID    int    `json:"id"`
+	Title string `json:"title"`
+}
+
+// BaseObjectCount struct.
+type BaseObjectCount struct {
+	Count int `json:"count"`
+}
+
+// BaseObjectWithName struct.
+type BaseObjectWithName struct {
+	ID   int    `json:"id"`
+	Name string `json:"name"`
+}
+
+// BaseRequestParam struct.
+type BaseRequestParam struct {
+	Key   string `json:"key"`
+	Value string `json:"value"`
+}
+
+// BaseSex const.
+const (
+	SexUnknown = iota
+	SexFemale
+	SexMale
+)
+
+// LongPollResponse struct.
+type LongPollResponse struct {
+	Ts      int             `json:"ts"`
+	Updates [][]interface{} `json:"updates"`
+	Failed  int             `json:"failed"`
+}
+
+// BaseCommentsInfo struct.
+type BaseCommentsInfo struct {
+	Count         int         `json:"count"`
+	CanPost       BaseBoolInt `json:"can_post"`
+	GroupsCanPost BaseBoolInt `json:"groups_can_post"`
+	CanClose      BaseBoolInt `json:"can_close"`
+	CanOpen       BaseBoolInt `json:"can_open"`
+}
+
+// BaseGeo struct.
+type BaseGeo struct {
+	Coordinates string    `json:"coordinates"`
+	Place       BasePlace `json:"place"`
+	Showmap     int       `json:"showmap"`
+	Type        string    `json:"type"`
+}
+
+// BaseMessageGeo struct.
+type BaseMessageGeo struct {
+	Coordinates BaseGeoCoordinates `json:"coordinates"`
+	Place       BasePlace          `json:"place"`
+	Showmap     int                `json:"showmap"`
+	Type        string             `json:"type"`
+}
+
+// BaseGeoCoordinates struct.
+type BaseGeoCoordinates struct {
+	Latitude  float64 `json:"latitude"`
+	Longitude float64 `json:"longitude"`
+}
+
+// BaseImage struct.
+type BaseImage struct {
+	Height float64 `json:"height"`
+	URL    string  `json:"url"`
+	Width  float64 `json:"width"`
+	Type   string  `json:"type"`
+}
+
+// UnmarshalJSON is required to support images with `src` field.
+func (obj *BaseImage) UnmarshalJSON(data []byte) (err error) {
+	type renamedBaseImage struct {
+		Height float64 `json:"height"`
+		URL    string  `json:"url"`
+		Src    string  `json:"src"`
+		Width  float64 `json:"width"`
+		Type   string  `json:"type"`
+	}
+
+	var renamedObj renamedBaseImage
+
+	err = json.Unmarshal(data, &renamedObj)
+
+	obj.Height = renamedObj.Height
+	obj.Width = renamedObj.Width
+	obj.Type = renamedObj.Type
+
+	if renamedObj.Src == "" {
+		obj.URL = renamedObj.URL
+	} else {
+		obj.URL = renamedObj.Src
+	}
+
+	return err
+}
+
+// BaseLikes struct.
+type BaseLikes struct {
+	UserLikes BaseBoolInt `json:"user_likes"` // Information whether current user likes
+	Count     int         `json:"count"`      // Likes number
+}
+
+// BaseLikesInfo struct.
+type BaseLikesInfo struct {
+	CanLike    BaseBoolInt `json:"can_like"`    // Information whether current user can like the post
+	CanPublish BaseBoolInt `json:"can_publish"` // Information whether current user can repost
+	UserLikes  BaseBoolInt `json:"user_likes"`  // Information whether current uer has liked the post
+	Count      int         `json:"count"`       // Likes number
+}
+
+// BaseLink struct.
+type BaseLink struct {
+	Application  BaseLinkApplication `json:"application"`
+	Button       BaseLinkButton      `json:"button"`
+	ButtonText   string              `json:"button_text"`
+	ButtonAction string              `json:"button_action"`
+	Caption      string              `json:"caption"`
+	Description  string              `json:"description"`
+	Photo        PhotosPhoto         `json:"photo"`
+	Video        VideoVideo          `json:"video"`
+	PreviewPage  string              `json:"preview_page"`
+	PreviewURL   string              `json:"preview_url"`
+	Product      BaseLinkProduct     `json:"product"`
+	Rating       BaseLinkRating      `json:"rating"`
+	Title        string              `json:"title"`
+	Target       string              `json:"target"`
+	URL          string              `json:"url"`
+	IsFavorite   BaseBoolInt         `json:"is_favorite"`
+}
+
+// BaseLinkApplication struct.
+type BaseLinkApplication struct {
+	AppID float64                  `json:"app_id"`
+	Store BaseLinkApplicationStore `json:"store"`
+}
+
+// BaseLinkApplicationStore struct.
+type BaseLinkApplicationStore struct {
+	ID   float64 `json:"id"`
+	Name string  `json:"name"`
+}
+
+// BaseLinkButton struct.
+type BaseLinkButton struct {
+	Action BaseLinkButtonAction `json:"action"`
+	Title  string               `json:"title"`
+}
+
+// BaseLinkButtonAction struct.
+type BaseLinkButtonAction struct {
+	Type string `json:"type"`
+	URL  string `json:"url"`
+}
+
+// BaseLinkProduct struct.
+type BaseLinkProduct struct {
+	Price       MarketPrice `json:"price"`
+	Merchant    string      `json:"merchant"`
+	OrdersCount int         `json:"orders_count"`
+}
+
+// BaseLinkRating struct.
+type BaseLinkRating struct {
+	ReviewsCount int     `json:"reviews_count"`
+	Stars        float64 `json:"stars"`
+}
+
+// BasePlace struct.
+type BasePlace struct {
+	Address        string             `json:"address"`
+	Checkins       int                `json:"checkins"`
+	City           interface{}        `json:"city"` // BUG(VK): https://github.com/VKCOM/vk-api-schema/issues/143
+	Country        interface{}        `json:"country"`
+	Created        int                `json:"created"`
+	ID             int                `json:"id"`
+	Icon           string             `json:"icon"`
+	Latitude       float64            `json:"latitude"`
+	Longitude      float64            `json:"longitude"`
+	Title          string             `json:"title"`
+	Type           string             `json:"type"`
+	IsDeleted      BaseBoolInt        `json:"is_deleted"`
+	TotalCheckins  int                `json:"total_checkins"`
+	Updated        int                `json:"updated"`
+	CategoryObject BaseCategoryObject `json:"category_object"`
+}
+
+// BaseCategoryObject struct.
+type BaseCategoryObject struct {
+	ID    int         `json:"id"`
+	Title string      `json:"title"`
+	Icons []BaseImage `json:"icons"`
+}
+
+// BaseRepostsInfo struct.
+type BaseRepostsInfo struct {
+	Count        int `json:"count"`
+	WallCount    int `json:"wall_count"`
+	MailCount    int `json:"mail_count"`
+	UserReposted int `json:"user_reposted"`
+}
+
+// BaseSticker struct.
+type BaseSticker struct {
+	Images               []BaseImage `json:"images"`
+	ImagesWithBackground []BaseImage `json:"images_with_background"`
+	ProductID            int         `json:"product_id"`
+	StickerID            int         `json:"sticker_id"`
+	AnimationURL         string      `json:"animation_url"`
+}
+
+// MaxSize return the largest BaseSticker.
+func (sticker BaseSticker) MaxSize() (maxImageSize BaseImage) {
+	var max float64
+
+	for _, imageSize := range sticker.Images {
+		size := imageSize.Height * imageSize.Width
+		if size > max {
+			max = size
+			maxImageSize = imageSize
+		}
+	}
+
+	return
+}
+
+// MinSize return the smallest BaseSticker.
+func (sticker BaseSticker) MinSize() (minImageSize BaseImage) {
+	var min float64
+
+	for _, imageSize := range sticker.Images {
+		size := imageSize.Height * imageSize.Width
+		if size < min || min == 0 {
+			min = size
+			minImageSize = imageSize
+		}
+	}
+
+	return
+}
+
+// MaxSizeBackground return the largest BaseSticker with background.
+func (sticker BaseSticker) MaxSizeBackground() (maxImageSize BaseImage) {
+	var max float64
+
+	for _, imageSize := range sticker.ImagesWithBackground {
+		size := imageSize.Height * imageSize.Width
+		if size > max {
+			max = size
+			maxImageSize = imageSize
+		}
+	}
+
+	return
+}
+
+// MinSizeBackground return the smallest BaseSticker with background.
+func (sticker BaseSticker) MinSizeBackground() (minImageSize BaseImage) {
+	var min float64
+
+	for _, imageSize := range sticker.ImagesWithBackground {
+		size := imageSize.Height * imageSize.Width
+		if size < min || min == 0 {
+			min = size
+			minImageSize = imageSize
+		}
+	}
+
+	return
+}
+
+// BaseUserID struct.
+type BaseUserID struct {
+	UserID int `json:"user_id"`
+}
+
+// PrivacyCategory type.
+type PrivacyCategory string
+
+// Possible values.
+const (
+	PrivacyAll              PrivacyCategory = "all"
+	PrivacyOnlyMe           PrivacyCategory = "only_me"
+	PrivacyFriends          PrivacyCategory = "friends"
+	PrivacyFriendsOfFriends PrivacyCategory = "friends_of_friends"
+)
+
+// Privacy struct.
+type Privacy struct {
+	Category PrivacyCategory `json:"category,omitempty"`
+	Lists    struct {
+		Allowed []int `json:"allowed"`
+	} `json:"lists,omitempty"`
+	Owners struct {
+		Excluded []int `json:"excluded"`
+	} `json:"owners,omitempty"`
+}
+
+// EventsEventAttach struct.
+type EventsEventAttach struct {
+	Address      string      `json:"address,omitempty"`       // address of event
+	ButtonText   string      `json:"button_text"`             // text of attach
+	Friends      []int       `json:"friends"`                 // array of friends ids
+	ID           int         `json:"id"`                      // event ID
+	IsFavorite   BaseBoolInt `json:"is_favorite"`             // is favorite
+	MemberStatus int         `json:"member_status,omitempty"` // Current user's member status
+	Text         string      `json:"text"`                    // text of attach
+	Time         int         `json:"time,omitempty"`          // event start time
+}
+
+// OauthError struct.
+type OauthError struct {
+	Error            string `json:"error"`
+	ErrorDescription string `json:"error_description"`
+	RedirectURI      string `json:"redirect_uri"`
+}
+
+// Article struct.
+type Article struct {
+	ID            int         `json:"id"`
+	OwnerID       int         `json:"owner_id"`
+	OwnerName     string      `json:"owner_name"`
+	OwnerPhoto    string      `json:"owner_photo"`
+	State         string      `json:"state"`
+	CanReport     BaseBoolInt `json:"can_report"`
+	IsFavorite    BaseBoolInt `json:"is_favorite"`
+	NoFooter      BaseBoolInt `json:"no_footer"`
+	Title         string      `json:"title"`
+	Subtitle      string      `json:"subtitle"`
+	Views         int         `json:"views"`
+	Shares        int         `json:"shares"`
+	URL           string      `json:"url"`
+	ViewURL       string      `json:"view_url"`
+	AccessKey     string      `json:"access_key"`
+	PublishedDate int         `json:"published_date"`
+	Photo         PhotosPhoto `json:"photo"`
+}
+
+// ExtendedResponse struct.
+type ExtendedResponse struct {
+	Profiles []UsersUser   `json:"profiles,omitempty"`
+	Groups   []GroupsGroup `json:"groups,omitempty"`
+}
+
+// ClientInfo struct.
+type ClientInfo struct {
+	ButtonActions  []string    `json:"button_actions"`
+	Keyboard       BaseBoolInt `json:"keyboard"`
+	InlineKeyboard BaseBoolInt `json:"inline_keyboard"`
+	Carousel       BaseBoolInt `json:"carousel"`
+	LangID         int         `json:"lang_id"`
+}
+
+// Language code.
+const (
+	LangRU               = 0   // Русский
+	LangUK               = 1   // Українська
+	LangBE               = 2   // Беларуская (тарашкевiца)
+	LangEN               = 3   // English
+	LangES               = 4   // Español
+	LangFI               = 5   // Suomi
+	LangDE               = 6   // Deutsch
+	LangIT               = 7   // Italiano
+	LangBG               = 8   // Български
+	LangHR               = 9   // Hrvatski
+	LangHU               = 10  // Magyar
+	LangSR               = 11  // Српски
+	LangPT               = 12  // Português
+	LangEL               = 14  // Ελληνικά
+	LangPL               = 15  // Polski
+	LangFR               = 16  // Français
+	LangKO               = 17  // 한국어
+	LangZH               = 18  // 汉语
+	LangLT               = 19  // Lietuvių
+	LangJA               = 20  // 日本語
+	LangCS               = 21  // Čeština
+	LangET               = 22  // Eesti
+	LangTT               = 50  // Татарча
+	LangBA               = 51  // Башҡортса
+	LangCV               = 52  // Чăвашла
+	LangSK               = 53  // Slovenčina
+	LangRO               = 54  // Română
+	LangNO               = 55  // Norsk
+	LangLV               = 56  // Latviešu
+	LangAZ               = 57  // Azərbaycan dili
+	LangHY               = 58  // Հայերեն
+	LangSQ               = 59  // Shqip
+	LangSV               = 60  // Svenska
+	LangNL               = 61  // Nederlands
+	LangTK               = 62  // Türkmen
+	LangKA               = 63  // ქართული
+	LangDA               = 64  // Dansk
+	LangUZ               = 65  // O‘zbek
+	LangMO               = 66  // Moldovenească
+	LangBUA              = 67  // Буряад
+	LangTH               = 68  // ภาษาไทย
+	LangID               = 69  // Bahasa Indonesia
+	LangTG               = 70  // Тоҷикӣ
+	LangSL               = 71  // Slovenščina
+	LangBS               = 72  // Bosanski
+	LangPTBR             = 73  // Português brasileiro
+	LangFA               = 74  // فارسی
+	LangVI               = 75  // Tiếng Việt
+	LangHI               = 76  // हिन्दी
+	LangSI               = 77  // සිංහල
+	LangBN               = 78  // বাংলা
+	LangTL               = 79  // Tagalog
+	LangMN               = 80  // Монгол
+	LangMY               = 81  // ဗမာစာ
+	LangTR               = 82  // Türkçe
+	LangNE               = 83  // नेपाली
+	LangUR               = 85  // اردو
+	LangKY               = 87  // Кыргыз тили
+	LangPA               = 90  // پنجابی
+	LangOS               = 91  // Ирон
+	LangKN               = 94  // ಕನ್ನಡ
+	LangSW               = 95  // Kiswahili
+	LangKK               = 97  // Қазақша
+	LangAR               = 98  // العربية
+	LangHE               = 99  // עברית
+	LangPreRevolutionary = 100 // Дореволюцiонный
+	LangMYV              = 101 // Эрзянь кель
+	LangKDB              = 102 // Адыгэбзэ
+	LangSAH              = 105 // Саха тыла
+	LangADY              = 106 // Адыгабзэ
+	LangUDM              = 107 // Удмурт
+	LangCHM              = 108 // Марий йылме
+	LangBE2              = 114 // Беларуская
+	LangLEZ              = 118 // Лезги чІал
+	LangTW               = 119 // 臺灣話
+	LangKUM              = 236 // Къумукъ тил
+	LangMVL              = 270 // Mirandés
+	LangSLA              = 298 // Русинськый
+	LangKRL              = 379 // Karjalan kieli
+	LangTYV              = 344 // Тыва дыл
+	LangXAL              = 357 // Хальмг келн
+	LangTLY              = 373 // Tolışə zıvon
+	LangKV               = 375 // Коми кыв
+	LangUKClassic        = 452 // Українська (клясична)
+	LangUKGalitska       = 454 // Українська (Галицка)
+	LangKAB              = 457 // Taqbaylit
+	LangEO               = 555 // Esperanto
+	LangLA               = 666 // Lingua Latina
+	LangSoviet           = 777 // Советский
+)
+
+// Button action type.
+const (
+	// A button that sends a message with text specified in the label.
+	ButtonText = "text"
+
+	// Opens the VK Pay window with predefined parameters. The button is called
+	// “Pay with VK Pay” (VK Pay is displayed as a logo). This button always
+	// stretches to the whole keyboard width.
+	ButtonVKPay = "vkpay"
+
+	// Opens a specified VK Apps app. This button always stretches to the whole
+	// keyboard width.
+	ButtonVKApp = "open_app"
+
+	// Sends the location to the chat. This button always stretches to the
+	// whole keyboard width.
+	ButtonLocation = "location"
+
+	// Opens the specified link.
+	ButtonOpenLink = "open_link"
+
+	// Allows, without sending a message from the user, to receive a
+	// notification about pressing the button and perform the necessary action.
+	ButtonCallback = "callback"
+)
+
+// Button color. This parameter is used only for buttons with the text and callback types.
+const (
+	Primary = "primary" // Blue button, indicates the main action. #5181B8
+	ButtonBlue
+
+	Secondary = "secondary" // Default white button. #FFFFFF
+	ButtonWhite
+
+	Negative = "negative" // Dangerous or negative action (cancel, delete etc.) #E64646
+	ButtonRed
+
+	Positive = "positive" // Accept, agree. #4BB34B
+	ButtonGreen
+)
+
+// Platform content creation platform.
+type Platform int
+
+// Possible values.
+const (
+	_                    Platform = iota
+	PlatformMobile                // mobile web version
+	PlatformIPhone                // iPhone
+	PlatformIPad                  // iPad
+	PlatformAndroid               // Android
+	PlatformWindowsPhone          // Windows Phone
+	PlatformWindows               // Windows 8
+	PlatformFull                  // full web version
+	PlatformOther                 // other apps
+)
+
+// Conversations types.
+const (
+	PeerUser  = "user"
+	PeerChat  = "chat"
+	PeerGroup = "group"
+	PeerEmail = "email"
+)