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, 961 insertions, 0 deletions

diff --git a/vendor/github.com/SevereCloud/vksdk/v2/api/upload.go b/vendor/github.com/SevereCloud/vksdk/v2/api/upload.go
new file mode 100644
index 00000000..2c947c5d
--- /dev/null
+++ b/vendor/github.com/SevereCloud/vksdk/v2/api/upload.go
@@ -0,0 +1,961 @@
+package api // import "github.com/SevereCloud/vksdk/v2/api"
+
+import (
+	"bytes"
+	"encoding/json"
+	"io"
+	"io/ioutil"
+	"mime/multipart"
+
+	"github.com/SevereCloud/vksdk/v2/object"
+)
+
+// UploadFile uploading file.
+func (vk *VK) UploadFile(url string, file io.Reader, fieldname, filename string) (bodyContent []byte, err error) {
+	body := new(bytes.Buffer)
+	writer := multipart.NewWriter(body)
+
+	part, err := writer.CreateFormFile(fieldname, filename)
+	if err != nil {
+		return
+	}
+
+	_, err = io.Copy(part, file)
+	if err != nil {
+		return
+	}
+
+	contentType := writer.FormDataContentType()
+	_ = writer.Close()
+
+	resp, err := vk.Client.Post(url, contentType, body)
+	if err != nil {
+		return
+	}
+	defer resp.Body.Close()
+
+	bodyContent, err = ioutil.ReadAll(resp.Body)
+
+	return
+}
+
+// uploadPhoto uploading Photos into Album.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: width+height not more than 14000 px, file size up to 50 Mb,
+// aspect ratio of at least 1:20.
+func (vk *VK) uploadPhoto(params Params, file io.Reader) (response PhotosSaveResponse, err error) {
+	uploadServer, err := vk.PhotosGetUploadServer(params)
+	if err != nil {
+		return
+	}
+
+	bodyContent, err := vk.UploadFile(uploadServer.UploadURL, file, "file1", "file1.jpeg")
+	if err != nil {
+		return
+	}
+
+	var handler object.PhotosPhotoUploadResponse
+
+	err = json.Unmarshal(bodyContent, &handler)
+	if err != nil {
+		return
+	}
+
+	response, err = vk.PhotosSave(Params{
+		"server":      handler.Server,
+		"photos_list": handler.PhotosList,
+		"aid":         handler.AID,
+		"hash":        handler.Hash,
+		"album_id":    params["album_id"],
+		"group_id":    params["group_id"],
+	})
+
+	return
+}
+
+// UploadPhoto uploading Photos into User Album.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: width+height not more than 14000 px, file size up to 50 Mb,
+// aspect ratio of at least 1:20.
+func (vk *VK) UploadPhoto(albumID int, file io.Reader) (response PhotosSaveResponse, err error) {
+	response, err = vk.uploadPhoto(Params{
+		"album_id": albumID,
+	}, file)
+
+	return
+}
+
+// UploadPhotoGroup uploading Photos into Group Album.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: width+height not more than 14000 px, file size up to 50 Mb,
+// aspect ratio of at least 1:20.
+func (vk *VK) UploadPhotoGroup(groupID, albumID int, file io.Reader) (response PhotosSaveResponse, err error) {
+	response, err = vk.uploadPhoto(Params{
+		"album_id": albumID,
+		"group_id": groupID,
+	}, file)
+
+	return
+}
+
+// uploadWallPhoto uploading Photos on Wall.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: width+height not more than 14000 px, file size up to 50 Mb,
+// aspect ratio of at least 1:20.
+func (vk *VK) uploadWallPhoto(params Params, file io.Reader) (response PhotosSaveWallPhotoResponse, err error) {
+	uploadServer, err := vk.PhotosGetWallUploadServer(params)
+	if err != nil {
+		return
+	}
+
+	bodyContent, err := vk.UploadFile(uploadServer.UploadURL, file, "photo", "photo.jpeg")
+	if err != nil {
+		return
+	}
+
+	var handler object.PhotosWallUploadResponse
+
+	err = json.Unmarshal(bodyContent, &handler)
+	if err != nil {
+		return
+	}
+
+	response, err = vk.PhotosSaveWallPhoto(Params{
+		"server":   handler.Server,
+		"photo":    handler.Photo,
+		"hash":     handler.Hash,
+		"group_id": params["group_id"],
+	})
+
+	return
+}
+
+// UploadWallPhoto uploading Photos on User Wall.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: width+height not more than 14000 px, file size up to 50 Mb,
+// aspect ratio of at least 1:20.
+func (vk *VK) UploadWallPhoto(file io.Reader) (response PhotosSaveWallPhotoResponse, err error) {
+	response, err = vk.uploadWallPhoto(Params{}, file)
+	return
+}
+
+// UploadGroupWallPhoto uploading Photos on Group Wall.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: width+height not more than 14000 px, file size up to 50 Mb,
+// aspect ratio of at least 1:20.
+func (vk *VK) UploadGroupWallPhoto(groupID int, file io.Reader) (response PhotosSaveWallPhotoResponse, err error) {
+	response, err = vk.uploadWallPhoto(Params{
+		"group_id": groupID,
+	}, file)
+
+	return
+}
+
+// uploadOwnerPhoto uploading Photos into User Profile or Community
+// To upload a photo to a community send its negative id in the owner_id parameter.
+//
+// Following parameters can be sent in addition:
+// squareCrop in x,y,w (no quotes) format where x and y are the coordinates of
+// the preview upper-right corner and w is square side length.
+// That will create a square preview for a photo.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: size not less than 200x200px, aspect ratio from 0.25 to 3,
+// width+height not more than 14000 px, file size up to 50 Mb.
+func (vk *VK) uploadOwnerPhoto(params Params, squareCrop string, file io.Reader) (
+	response PhotosSaveOwnerPhotoResponse,
+	err error,
+) {
+	uploadServer, err := vk.PhotosGetOwnerPhotoUploadServer(params)
+	if err != nil {
+		return
+	}
+
+	body := new(bytes.Buffer)
+	writer := multipart.NewWriter(body)
+
+	part, err := writer.CreateFormFile("photo", "photo.jpeg")
+	if err != nil {
+		return
+	}
+
+	_, err = io.Copy(part, file)
+	if err != nil {
+		return
+	}
+
+	contentType := writer.FormDataContentType()
+
+	if squareCrop != "" {
+		err = writer.WriteField("_square_crop", squareCrop)
+		if err != nil {
+			return
+		}
+	}
+
+	_ = writer.Close()
+
+	resp, err := vk.Client.Post(uploadServer.UploadURL, contentType, body)
+	if err != nil {
+		return
+	}
+	defer resp.Body.Close()
+
+	bodyContent, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return
+	}
+
+	var handler object.PhotosOwnerUploadResponse
+
+	err = json.Unmarshal(bodyContent, &handler)
+	if err != nil {
+		return
+	}
+
+	response, err = vk.PhotosSaveOwnerPhoto(Params{
+		"server": handler.Server,
+		"photo":  handler.Photo,
+		"hash":   handler.Hash,
+	})
+
+	return response, err
+}
+
+// UploadUserPhoto uploading Photos into User Profile.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: size not less than 200x200px, aspect ratio from 0.25 to 3,
+// width+height not more than 14000 px, file size up to 50 Mb.
+func (vk *VK) UploadUserPhoto(file io.Reader) (response PhotosSaveOwnerPhotoResponse, err error) {
+	response, err = vk.uploadOwnerPhoto(Params{}, "", file)
+	return
+}
+
+// UploadOwnerPhoto uploading Photos into User Profile or Community
+// To upload a photo to a community send its negative id in the owner_id parameter.
+//
+// Following parameters can be sent in addition:
+// squareCrop in x,y,w (no quotes) format where x and y are the coordinates of
+// the preview upper-right corner and w is square side length.
+// That will create a square preview for a photo.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: size not less than 200x200px, aspect ratio from 0.25 to 3,
+// width+height not more than 14000 px, file size up to 50 Mb.
+func (vk *VK) UploadOwnerPhoto(ownerID int, squareCrop string, file io.Reader) (
+	response PhotosSaveOwnerPhotoResponse,
+	err error,
+) {
+	response, err = vk.uploadOwnerPhoto(Params{
+		"owner_id": ownerID,
+	}, squareCrop, file)
+
+	return
+}
+
+// UploadMessagesPhoto uploading Photos into a Private Message.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: width+height not more than 14000 px, file size up to 50 Mb,
+// aspect ratio of at least 1:20.
+func (vk *VK) UploadMessagesPhoto(peerID int, file io.Reader) (response PhotosSaveMessagesPhotoResponse, err error) {
+	uploadServer, err := vk.PhotosGetMessagesUploadServer(Params{
+		"peer_id": peerID,
+	})
+	if err != nil {
+		return
+	}
+
+	bodyContent, err := vk.UploadFile(uploadServer.UploadURL, file, "photo", "photo.jpeg")
+	if err != nil {
+		return
+	}
+
+	var handler object.PhotosMessageUploadResponse
+
+	err = json.Unmarshal(bodyContent, &handler)
+	if err != nil {
+		return
+	}
+
+	response, err = vk.PhotosSaveMessagesPhoto(Params{
+		"server": handler.Server,
+		"photo":  handler.Photo,
+		"hash":   handler.Hash,
+	})
+
+	return
+}
+
+// uploadChatPhoto uploading a Main Photo to a Group Chat.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: size not less than 200x200px,
+// width+height not more than 14000 px, file size up to 50 Mb,
+// aspect ratio of at least 1:20.
+func (vk *VK) uploadChatPhoto(params Params, file io.Reader) (response MessagesSetChatPhotoResponse, err error) {
+	uploadServer, err := vk.PhotosGetChatUploadServer(params)
+	if err != nil {
+		return
+	}
+
+	bodyContent, err := vk.UploadFile(uploadServer.UploadURL, file, "file", "photo.jpeg")
+	if err != nil {
+		return
+	}
+
+	var handler object.PhotosChatUploadResponse
+
+	err = json.Unmarshal(bodyContent, &handler)
+	if err != nil {
+		return
+	}
+
+	response, err = vk.MessagesSetChatPhoto(Params{
+		"file": handler.Response,
+	})
+
+	return
+}
+
+// UploadChatPhoto uploading a Main Photo to a Group Chat without crop.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: size not less than 200x200px,
+// width+height not more than 14000 px, file size up to 50 Mb,
+// aspect ratio of at least 1:20.
+func (vk *VK) UploadChatPhoto(chatID int, file io.Reader) (response MessagesSetChatPhotoResponse, err error) {
+	response, err = vk.uploadChatPhoto(Params{
+		"chat_id": chatID,
+	}, file)
+
+	return
+}
+
+// UploadChatPhotoCrop uploading a Main Photo to a Group Chat with crop.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: size not less than 200x200px,
+// width+height not more than 14000 px, file size up to 50 Mb,
+// aspect ratio of at least 1:20.
+func (vk *VK) UploadChatPhotoCrop(chatID, cropX, cropY, cropWidth int, file io.Reader) (
+	response MessagesSetChatPhotoResponse,
+	err error,
+) {
+	response, err = vk.uploadChatPhoto(Params{
+		"chat_id":    chatID,
+		"crop_x":     cropX,
+		"crop_y":     cropY,
+		"crop_width": cropWidth,
+	}, file)
+
+	return
+}
+
+// uploadMarketPhoto uploading a Market Item Photo.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: size not less than 400x400px,
+// width+height not more than 14000 px, file size up to 50 Mb,
+// aspect ratio of at least 1:20.
+func (vk *VK) uploadMarketPhoto(params Params, file io.Reader) (response PhotosSaveMarketPhotoResponse, err error) {
+	uploadServer, err := vk.PhotosGetMarketUploadServer(params)
+	if err != nil {
+		return
+	}
+
+	bodyContent, err := vk.UploadFile(uploadServer.UploadURL, file, "file", "photo.jpeg")
+	if err != nil {
+		return
+	}
+
+	var handler object.PhotosMarketUploadResponse
+
+	err = json.Unmarshal(bodyContent, &handler)
+	if err != nil {
+		return
+	}
+
+	response, err = vk.PhotosSaveMarketPhoto(Params{
+		"group_id":  params["group_id"],
+		"server":    handler.Server,
+		"photo":     handler.Photo,
+		"hash":      handler.Hash,
+		"crop_data": handler.CropData,
+		"crop_hash": handler.CropHash,
+	})
+
+	return
+}
+
+// UploadMarketPhoto uploading a Market Item Photo without crop.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: size not less than 400x400px,
+// width+height not more than 14000 px, file size up to 50 Mb,
+// aspect ratio of at least 1:20.
+func (vk *VK) UploadMarketPhoto(groupID int, mainPhoto bool, file io.Reader) (
+	response PhotosSaveMarketPhotoResponse,
+	err error,
+) {
+	response, err = vk.uploadMarketPhoto(Params{
+		"group_id":   groupID,
+		"main_photo": mainPhoto,
+	}, file)
+
+	return
+}
+
+// UploadMarketPhotoCrop uploading a Market Item Photo with crop.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: size not less than 400x400px,
+// width+height not more than 14000 px, file size up to 50 Mb,
+// aspect ratio of at least 1:20.
+func (vk *VK) UploadMarketPhotoCrop(groupID, cropX, cropY, cropWidth int, file io.Reader) (
+	response PhotosSaveMarketPhotoResponse,
+	err error,
+) {
+	response, err = vk.uploadMarketPhoto(Params{
+		"group_id":   groupID,
+		"main_photo": true,
+		"crop_x":     cropX,
+		"crop_y":     cropY,
+		"crop_width": cropWidth,
+	}, file)
+
+	return
+}
+
+// UploadMarketAlbumPhoto uploading a Main Photo to a Group Chat.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: size not less than 1280x720px,
+// width+height not more than 14000 px, file size up to 50 Mb,
+// aspect ratio of at least 1:20.
+func (vk *VK) UploadMarketAlbumPhoto(groupID int, file io.Reader) (
+	response PhotosSaveMarketAlbumPhotoResponse,
+	err error,
+) {
+	uploadServer, err := vk.PhotosGetMarketAlbumUploadServer(Params{
+		"group_id": groupID,
+	})
+	if err != nil {
+		return
+	}
+
+	bodyContent, err := vk.UploadFile(uploadServer.UploadURL, file, "file", "photo.jpeg")
+	if err != nil {
+		return
+	}
+
+	var handler object.PhotosMarketAlbumUploadResponse
+
+	err = json.Unmarshal(bodyContent, &handler)
+	if err != nil {
+		return
+	}
+
+	return vk.PhotosSaveMarketAlbumPhoto(Params{
+		"group_id": groupID,
+		"server":   handler.Server,
+		"photo":    handler.Photo,
+		"hash":     handler.Hash,
+	})
+}
+
+// UploadVideo uploading Video Files.
+//
+// Supported formats: AVI, MP4, 3GP, MPEG, MOV, FLV, WMV.
+func (vk *VK) UploadVideo(params Params, file io.Reader) (response VideoSaveResponse, err error) {
+	response, err = vk.VideoSave(params)
+	if err != nil {
+		return
+	}
+
+	bodyContent, err := vk.UploadFile(response.UploadURL, file, "video_file", "video.mp4")
+	if err != nil {
+		return
+	}
+
+	var videoUploadError UploadError
+
+	err = json.Unmarshal(bodyContent, &videoUploadError)
+	if err != nil {
+		return
+	}
+
+	if videoUploadError.Code != 0 {
+		err = &videoUploadError
+	}
+
+	return
+}
+
+// uploadDoc uploading Documents.
+//
+// Supported formats: any formats excepting mp3 and executable files.
+//
+// Limits: file size up to 200 MB.
+func (vk *VK) uploadDoc(url, title, tags string, file io.Reader) (response DocsSaveResponse, err error) {
+	bodyContent, err := vk.UploadFile(url, file, "file", title)
+	if err != nil {
+		return
+	}
+
+	var docUploadError UploadError
+
+	err = json.Unmarshal(bodyContent, &docUploadError)
+	if err != nil {
+		return
+	}
+
+	if docUploadError.Err != "" {
+		err = &docUploadError
+		return
+	}
+
+	var handler object.DocsDocUploadResponse
+
+	err = json.Unmarshal(bodyContent, &handler)
+	if err != nil {
+		return
+	}
+
+	response, err = vk.DocsSave(Params{
+		"file":  handler.File,
+		"title": title,
+		"tags":  tags,
+	})
+
+	return response, err
+}
+
+// UploadDoc uploading Documents.
+//
+// Supported formats: any formats excepting mp3 and executable files.
+//
+// Limits: file size up to 200 MB.
+func (vk *VK) UploadDoc(title, tags string, file io.Reader) (response DocsSaveResponse, err error) {
+	uploadServer, err := vk.DocsGetUploadServer(nil)
+	if err != nil {
+		return
+	}
+
+	response, err = vk.uploadDoc(uploadServer.UploadURL, title, tags, file)
+
+	return
+}
+
+// UploadGroupDoc uploading Documents into Community.
+//
+// Supported formats: any formats excepting mp3 and executable files.
+//
+// Limits: file size up to 200 MB.
+func (vk *VK) UploadGroupDoc(groupID int, title, tags string, file io.Reader) (response DocsSaveResponse, err error) {
+	uploadServer, err := vk.DocsGetUploadServer(Params{
+		"group_id": groupID,
+	})
+	if err != nil {
+		return
+	}
+
+	response, err = vk.uploadDoc(uploadServer.UploadURL, title, tags, file)
+
+	return
+}
+
+// UploadWallDoc uploading Documents on Wall.
+//
+// Supported formats: any formats excepting mp3 and executable files.
+//
+// Limits: file size up to 200 MB.
+func (vk *VK) UploadWallDoc(title, tags string, file io.Reader) (response DocsSaveResponse, err error) {
+	uploadServer, err := vk.DocsGetWallUploadServer(nil)
+	if err != nil {
+		return
+	}
+
+	response, err = vk.uploadDoc(uploadServer.UploadURL, title, tags, file)
+
+	return
+}
+
+// UploadGroupWallDoc uploading Documents on Group Wall.
+//
+// Supported formats: any formats excepting mp3 and executable files.
+//
+// Limits: file size up to 200 MB.
+func (vk *VK) UploadGroupWallDoc(groupID int, title, tags string, file io.Reader) (
+	response DocsSaveResponse,
+	err error,
+) {
+	uploadServer, err := vk.DocsGetWallUploadServer(Params{
+		"group_id": groupID,
+	})
+	if err != nil {
+		return
+	}
+
+	response, err = vk.uploadDoc(uploadServer.UploadURL, title, tags, file)
+
+	return
+}
+
+// UploadMessagesDoc uploading Documents into a Private Message.
+//
+// Supported formats: any formats excepting mp3 and executable files.
+//
+// Limits: file size up to 200 MB.
+func (vk *VK) UploadMessagesDoc(peerID int, typeDoc, title, tags string, file io.Reader) (
+	response DocsSaveResponse,
+	err error,
+) {
+	uploadServer, err := vk.DocsGetMessagesUploadServer(Params{
+		"peer_id": peerID,
+		"type":    typeDoc,
+	})
+	if err != nil {
+		return
+	}
+
+	response, err = vk.uploadDoc(uploadServer.UploadURL, title, tags, file)
+
+	return
+}
+
+// UploadOwnerCoverPhoto uploading a Main Photo to a Group Chat.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: minimum photo size 795x200px, width+height not more than 14000px,
+// file size up to 50 MB. Recommended size: 1590x400px.
+func (vk *VK) UploadOwnerCoverPhoto(groupID, cropX, cropY, cropX2, cropY2 int, file io.Reader) (
+	response PhotosSaveOwnerCoverPhotoResponse,
+	err error,
+) {
+	uploadServer, err := vk.PhotosGetOwnerCoverPhotoUploadServer(Params{
+		"group_id": groupID,
+		"crop_x":   cropX,
+		"crop_y":   cropY,
+		"crop_x2":  cropX2,
+		"crop_y2":  cropY2,
+	})
+	if err != nil {
+		return
+	}
+
+	bodyContent, err := vk.UploadFile(uploadServer.UploadURL, file, "photo", "photo.jpeg")
+	if err != nil {
+		return
+	}
+
+	var handler object.PhotosOwnerUploadResponse
+
+	err = json.Unmarshal(bodyContent, &handler)
+	if err != nil {
+		return
+	}
+
+	return vk.PhotosSaveOwnerCoverPhoto(Params{
+		"photo": handler.Photo,
+		"hash":  handler.Hash,
+	})
+}
+
+// UploadStories struct.
+type UploadStories struct {
+	UploadResult string `json:"upload_result"`
+	Sig          string `json:"_sig"`
+}
+
+type rawUploadStoriesPhoto struct {
+	Response UploadStories `json:"response"`
+	Error    struct {
+		ErrorCode int    `json:"error_code"`
+		Type      string `json:"type"`
+	} `json:"error"`
+}
+
+type rawUploadStoriesVideo struct {
+	Response UploadStories `json:"response"`
+	UploadError
+}
+
+// UploadStoriesPhoto uploading Story.
+//
+// Supported formats: JPG, PNG, GIF.
+// Limits: sum of with and height no more than 14000px, file size no
+// more than 10 MB. Video format: h264 video, aac audio,
+// maximum 720х1280, 30fps.
+//
+// https://vk.com/dev/stories.getPhotoUploadServer
+func (vk *VK) UploadStoriesPhoto(params Params, file io.Reader) (response StoriesSaveResponse, err error) {
+	uploadServer, err := vk.StoriesGetPhotoUploadServer(params)
+	if err != nil {
+		return
+	}
+
+	bodyContent, err := vk.UploadFile(uploadServer.UploadURL, file, "file", "file.jpeg")
+	if err != nil {
+		return
+	}
+
+	var handler rawUploadStoriesPhoto
+
+	err = json.Unmarshal(bodyContent, &handler)
+	if err != nil {
+		return
+	}
+
+	if handler.Error.ErrorCode != 0 {
+		err = &UploadError{
+			Code: handler.Error.ErrorCode,
+			Err:  handler.Error.Type,
+		}
+
+		return response, err
+	}
+
+	response, err = vk.StoriesSave(Params{
+		"upload_results": handler.Response.UploadResult,
+	})
+
+	return response, err
+}
+
+// UploadStoriesVideo uploading Story.
+//
+// Video format: h264 video, aac audio, maximum 720х1280, 30fps.
+func (vk *VK) UploadStoriesVideo(params Params, file io.Reader) (response StoriesSaveResponse, err error) {
+	uploadServer, err := vk.StoriesGetVideoUploadServer(params)
+	if err != nil {
+		return
+	}
+
+	bodyContent, err := vk.UploadFile(uploadServer.UploadURL, file, "video_file", "video.mp4")
+	if err != nil {
+		return
+	}
+
+	var handler rawUploadStoriesVideo
+
+	err = json.Unmarshal(bodyContent, &handler)
+	if err != nil {
+		return
+	}
+
+	if handler.UploadError.Code != 0 {
+		return response, &handler.UploadError
+	}
+
+	response, err = vk.StoriesSave(Params{
+		"upload_results": handler.Response.UploadResult,
+	})
+
+	return response, err
+}
+
+// uploadPollsPhoto uploading a Poll Photo.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: minimum photo size 795x200px, width+height not more than 14000px,
+// file size up to 50 MB. Recommended size: 1590x400px.
+func (vk *VK) uploadPollsPhoto(params Params, file io.Reader) (response PollsSavePhotoResponse, err error) {
+	uploadServer, err := vk.PollsGetPhotoUploadServer(params)
+	if err != nil {
+		return
+	}
+
+	bodyContent, err := vk.UploadFile(uploadServer.UploadURL, file, "photo", "photo.jpeg")
+	if err != nil {
+		return
+	}
+
+	var handler object.PollsPhotoUploadResponse
+
+	err = json.Unmarshal(bodyContent, &handler)
+	if err != nil {
+		return
+	}
+
+	response, err = vk.PollsSavePhoto(Params{
+		"photo": handler.Photo,
+		"hash":  handler.Hash,
+	})
+
+	return
+}
+
+// UploadPollsPhoto uploading a Poll Photo.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: minimum photo size 795x200px, width+height not more than 14000px,
+// file size up to 50 MB. Recommended size: 1590x400px.
+func (vk *VK) UploadPollsPhoto(file io.Reader) (response PollsSavePhotoResponse, err error) {
+	return vk.uploadPollsPhoto(Params{}, file)
+}
+
+// UploadOwnerPollsPhoto uploading a Poll Photo.
+//
+// Supported formats: JPG, PNG, GIF.
+//
+// Limits: minimum photo size 795x200px, width+height not more than 14000px,
+// file size up to 50 MB. Recommended size: 1590x400px.
+func (vk *VK) UploadOwnerPollsPhoto(ownerID int, file io.Reader) (response PollsSavePhotoResponse, err error) {
+	return vk.uploadPollsPhoto(Params{"owner_id": ownerID}, file)
+}
+
+type uploadPrettyCardsPhotoHandler struct {
+	Photo   string `json:"photo"`
+	ErrCode int    `json:"errcode"`
+}
+
+// UploadPrettyCardsPhoto uploading a Pretty Card Photo.
+//
+// Supported formats: JPG, PNG, GIF.
+func (vk *VK) UploadPrettyCardsPhoto(file io.Reader) (response string, err error) {
+	uploadURL, err := vk.PrettyCardsGetUploadURL(nil)
+	if err != nil {
+		return
+	}
+
+	bodyContent, err := vk.UploadFile(uploadURL, file, "file", "photo.jpg")
+	if err != nil {
+		return
+	}
+
+	var handler uploadPrettyCardsPhotoHandler
+
+	err = json.Unmarshal(bodyContent, &handler)
+	if err != nil {
+		return
+	}
+
+	response = handler.Photo
+
+	if handler.ErrCode != 0 {
+		err = &UploadError{Code: handler.ErrCode}
+	}
+
+	return
+}
+
+type uploadLeadFormsPhotoHandler struct {
+	Photo   string `json:"photo"`
+	ErrCode int    `json:"errcode"`
+}
+
+// UploadLeadFormsPhoto uploading a Pretty Card Photo.
+//
+// Supported formats: JPG, PNG, GIF.
+func (vk *VK) UploadLeadFormsPhoto(file io.Reader) (response string, err error) {
+	uploadURL, err := vk.LeadFormsGetUploadURL(nil)
+	if err != nil {
+		return
+	}
+
+	bodyContent, err := vk.UploadFile(uploadURL, file, "file", "photo.jpg")
+	if err != nil {
+		return
+	}
+
+	var handler uploadLeadFormsPhotoHandler
+
+	err = json.Unmarshal(bodyContent, &handler)
+	if err != nil {
+		return
+	}
+
+	response = handler.Photo
+
+	if handler.ErrCode != 0 {
+		err = &UploadError{Code: handler.ErrCode}
+	}
+
+	return
+}
+
+// UploadAppImage uploading a Image into App collection for community app widgets.
+func (vk *VK) UploadAppImage(imageType string, file io.Reader) (response object.AppWidgetsImage, err error) {
+	uploadServer, err := vk.AppWidgetsGetAppImageUploadServer(Params{
+		"image_type": imageType,
+	})
+	if err != nil {
+		return
+	}
+
+	bodyContent, err := vk.UploadFile(uploadServer.UploadURL, file, "image", "photo.jpeg")
+	if err != nil {
+		return
+	}
+
+	var handler object.AppWidgetsAppImageUploadResponse
+
+	err = json.Unmarshal(bodyContent, &handler)
+	if err != nil {
+		return
+	}
+
+	response, err = vk.AppWidgetsSaveAppImage(Params{
+		"image": handler.Image,
+		"hash":  handler.Hash,
+	})
+
+	return
+}
+
+// UploadGroupImage uploading a Image into Community collection for community app widgets.
+func (vk *VK) UploadGroupImage(imageType string, file io.Reader) (response object.AppWidgetsImage, err error) {
+	uploadServer, err := vk.AppWidgetsGetGroupImageUploadServer(Params{
+		"image_type": imageType,
+	})
+	if err != nil {
+		return
+	}
+
+	bodyContent, err := vk.UploadFile(uploadServer.UploadURL, file, "image", "photo.jpeg")
+	if err != nil {
+		return
+	}
+
+	var handler object.AppWidgetsGroupImageUploadResponse
+
+	err = json.Unmarshal(bodyContent, &handler)
+	if err != nil {
+		return
+	}
+
+	response, err = vk.AppWidgetsSaveGroupImage(Params{
+		"image": handler.Image,
+		"hash":  handler.Hash,
+	})
+
+	return
+}