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store.go
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store.go
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// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
// See License for license information.
package main
import (
"encoding/json"
"fmt"
"github.com/mattermost/mattermost-server/v5/model"
"github.com/pkg/errors"
"golang.org/x/oauth2"
"github.com/mattermost/mattermost-plugin-zoom/server/zoom"
)
const (
postMeetingKey = "post_meeting_"
zoomStateKeyPrefix = "zoomuserstate"
zoomUserByMMID = "zoomtoken_"
zoomUserByZoomID = "zoomtokenbyzoomid_"
zoomSuperUserTokenKey = "zoomSuperUserToken_"
meetingPostIDTTL = 60 * 60 * 24 // One day
oAuthUserStateTTL = 60 * 5 // 5 minutes
)
func (p *Plugin) storeOAuthUserInfo(info *zoom.OAuthUserInfo) error {
config := p.getConfiguration()
encryptedToken, err := encrypt([]byte(config.EncryptionKey), info.OAuthToken.AccessToken)
if err != nil {
return errors.Wrap(err, "could not encrypt OAuth token")
}
original := info.OAuthToken.AccessToken
info.OAuthToken.AccessToken = encryptedToken
encoded, err := json.Marshal(info)
if err != nil {
return err
}
if err := p.API.KVSet(zoomUserByMMID+info.UserID, encoded); err != nil {
return err
}
if err := p.API.KVSet(zoomUserByZoomID+info.ZoomID, encoded); err != nil {
return err
}
info.OAuthToken.AccessToken = original
return nil
}
func (p *Plugin) fetchOAuthUserInfo(tokenKey, userID string) (*zoom.OAuthUserInfo, error) {
config := p.getConfiguration()
encoded, appErr := p.API.KVGet(tokenKey + userID)
if appErr != nil || encoded == nil {
return nil, errors.New("must connect user account to Zoom first")
}
var info zoom.OAuthUserInfo
if err := json.Unmarshal(encoded, &info); err != nil {
return nil, errors.New("could not to parse OAauth access token")
}
plainToken, err := decrypt([]byte(config.EncryptionKey), info.OAuthToken.AccessToken)
if err != nil {
return nil, errors.New("could not decrypt OAuth access token")
}
info.OAuthToken.AccessToken = plainToken
return &info, nil
}
func (p *Plugin) disconnectOAuthUser(userID string) error {
// according to the definition encoded would be nil
encoded, err := p.API.KVGet(zoomUserByMMID + userID)
if err != nil {
return errors.Wrap(err, "could not find OAuth user info")
}
if encoded == nil {
return errors.New("you are not connected to Zoom yet")
}
var info zoom.OAuthUserInfo
if err := json.Unmarshal(encoded, &info); err != nil {
return errors.Wrap(err, "could not decode OAuth user info")
}
appErr := p.API.KVDelete(zoomUserByMMID + userID)
if appErr != nil {
return appErr
}
appErr = p.API.KVDelete(zoomUserByZoomID + info.ZoomID)
if appErr != nil {
return appErr
}
return nil
}
// storeOAuthUserState generates an OAuth user state that contains the user ID & channel ID,
// then stores it in the KV store with and expiry of 5 minutes.
func (p *Plugin) storeOAuthUserState(userID string, channelID string, justConnect bool) *model.AppError {
key := getOAuthUserStateKey(userID)
connectString := falseString
if justConnect {
connectString = trueString
}
state := fmt.Sprintf("%s_%s_%s_%s", model.NewId()[0:15], userID, channelID, connectString)
return p.API.KVSetWithExpiry(key, []byte(state), oAuthUserStateTTL)
}
// fetchOAuthUserState retrieves the OAuth user state from the KV store by the user ID.
func (p *Plugin) fetchOAuthUserState(userID string) (string, *model.AppError) {
key := getOAuthUserStateKey(userID)
state, err := p.API.KVGet(key)
if err != nil {
return "", err
}
return string(state), nil
}
// deleteUserState deletes the stored the OAuth user state from the KV store for the given userID.
func (p *Plugin) deleteUserState(userID string) *model.AppError {
key := getOAuthUserStateKey(userID)
return p.API.KVDelete(key)
}
func (p *Plugin) storeMeetingPostID(meetingID int, postID string) *model.AppError {
key := fmt.Sprintf("%v%v", postMeetingKey, meetingID)
bytes := []byte(postID)
return p.API.KVSetWithExpiry(key, bytes, meetingPostIDTTL)
}
func (p *Plugin) fetchMeetingPostID(meetingID string) (string, *model.AppError) {
key := fmt.Sprintf("%v%v", postMeetingKey, meetingID)
postID, appErr := p.API.KVGet(key)
if appErr != nil {
p.API.LogDebug("Could not get meeting post from KVStore", "err", appErr.Error())
return "", appErr
}
if postID == nil {
p.API.LogWarn("Stored meeting not found")
return "", appErr
}
return string(postID), nil
}
func (p *Plugin) deleteMeetingPostID(postID string) *model.AppError {
key := fmt.Sprintf("%v%v", postMeetingKey, postID)
return p.API.KVDelete(key)
}
// getOAuthUserStateKey generates and returns the key for storing the OAuth user state in the KV store.
func getOAuthUserStateKey(userID string) string {
return fmt.Sprintf("%s_%s", zoomStateKeyPrefix, userID)
}
func (p *Plugin) getSuperuserToken() (*oauth2.Token, error) {
var token oauth2.Token
rawToken, appErr := p.API.KVGet(zoomSuperUserTokenKey)
if appErr != nil {
return nil, appErr
}
if len(rawToken) == 0 {
return nil, nil
}
err := json.Unmarshal(rawToken, &token)
if err != nil {
return nil, err
}
return &token, nil
}
func (p *Plugin) setSuperUserToken(token *oauth2.Token) error {
rawToken, err := json.Marshal(token)
if err != nil {
return err
}
appErr := p.API.KVSet(zoomSuperUserTokenKey, rawToken)
if appErr != nil {
return appErr
}
return nil
}
func (p *Plugin) removeSuperUserToken() error {
appErr := p.API.KVDelete(zoomSuperUserTokenKey)
if appErr != nil {
return appErr
}
return nil
}