mirror of
https://github.com/owncast/owncast.git
synced 2024-11-25 14:20:54 +03:00
395 lines
10 KiB
Go
395 lines
10 KiB
Go
package chat
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import (
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"context"
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"database/sql"
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"fmt"
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"strings"
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"time"
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"github.com/owncast/owncast/core/chat/events"
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"github.com/owncast/owncast/core/data"
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"github.com/owncast/owncast/core/user"
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"github.com/owncast/owncast/models"
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log "github.com/sirupsen/logrus"
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)
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var _datastore *data.Datastore
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const (
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maxBacklogHours = 2 // Keep backlog max hours worth of messages
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maxBacklogNumber = 50 // Return max number of messages in history request
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)
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func setupPersistence() {
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_datastore = data.GetDatastore()
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data.CreateMessagesTable(_datastore.DB)
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data.CreateBanIPTable(_datastore.DB)
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chatDataPruner := time.NewTicker(5 * time.Minute)
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go func() {
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runPruner()
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for range chatDataPruner.C {
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runPruner()
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}
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}()
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}
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// SaveUserMessage will save a single chat event to the messages database.
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func SaveUserMessage(event events.UserMessageEvent) {
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saveEvent(event.ID, &event.User.ID, event.Body, event.Type, event.HiddenAt, event.Timestamp, nil, nil, nil, nil)
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}
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func saveFederatedAction(event events.FediverseEngagementEvent) {
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saveEvent(event.ID, nil, event.Body, event.Type, nil, event.Timestamp, event.Image, &event.Link, &event.UserAccountName, nil)
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}
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// nolint: unparam
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func saveEvent(id string, userID *string, body string, eventType string, hidden *time.Time, timestamp time.Time, image *string, link *string, title *string, subtitle *string) {
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defer func() {
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_historyCache = nil
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}()
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tx, err := _datastore.DB.Begin()
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if err != nil {
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log.Errorln("error saving", eventType, err)
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return
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}
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defer tx.Rollback() // nolint
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stmt, err := tx.Prepare("INSERT INTO messages(id, user_id, body, eventType, hidden_at, timestamp, image, link, title, subtitle) values(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)")
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if err != nil {
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log.Errorln("error saving", eventType, err)
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return
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}
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defer stmt.Close()
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if _, err = stmt.Exec(id, userID, body, eventType, hidden, timestamp, image, link, title, subtitle); err != nil {
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log.Errorln("error saving", eventType, err)
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return
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}
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if err = tx.Commit(); err != nil {
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log.Errorln("error saving", eventType, err)
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return
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}
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}
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func makeUserMessageEventFromRowData(row rowData) events.UserMessageEvent {
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scopes := ""
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if row.userScopes != nil {
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scopes = *row.userScopes
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}
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previousUsernames := []string{}
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if row.previousUsernames != nil {
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previousUsernames = strings.Split(*row.previousUsernames, ",")
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}
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displayName := ""
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if row.userDisplayName != nil {
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displayName = *row.userDisplayName
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}
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displayColor := 0
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if row.userDisplayColor != nil {
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displayColor = *row.userDisplayColor
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}
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createdAt := time.Time{}
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if row.userCreatedAt != nil {
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createdAt = *row.userCreatedAt
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}
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isBot := (row.userType != nil && *row.userType == "API")
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scopeSlice := strings.Split(scopes, ",")
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u := user.User{
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ID: *row.userID,
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DisplayName: displayName,
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DisplayColor: displayColor,
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CreatedAt: createdAt,
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DisabledAt: row.userDisabledAt,
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NameChangedAt: row.userNameChangedAt,
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PreviousNames: previousUsernames,
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AuthenticatedAt: row.userAuthenticatedAt,
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Authenticated: row.userAuthenticatedAt != nil,
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Scopes: scopeSlice,
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IsBot: isBot,
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}
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message := events.UserMessageEvent{
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Event: events.Event{
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Type: row.eventType,
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ID: row.id,
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Timestamp: row.timestamp,
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},
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UserEvent: events.UserEvent{
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User: &u,
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HiddenAt: row.hiddenAt,
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},
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MessageEvent: events.MessageEvent{
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Body: row.body,
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RawBody: row.body,
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},
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}
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return message
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}
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func makeSystemMessageChatEventFromRowData(row rowData) events.SystemMessageEvent {
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message := events.SystemMessageEvent{
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Event: events.Event{
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Type: row.eventType,
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ID: row.id,
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Timestamp: row.timestamp,
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},
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MessageEvent: events.MessageEvent{
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Body: row.body,
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RawBody: row.body,
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},
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}
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return message
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}
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func makeActionMessageChatEventFromRowData(row rowData) events.ActionEvent {
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message := events.ActionEvent{
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Event: events.Event{
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Type: row.eventType,
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ID: row.id,
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Timestamp: row.timestamp,
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},
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MessageEvent: events.MessageEvent{
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Body: row.body,
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RawBody: row.body,
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},
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}
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return message
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}
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func makeFederatedActionChatEventFromRowData(row rowData) events.FediverseEngagementEvent {
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message := events.FediverseEngagementEvent{
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Event: events.Event{
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Type: row.eventType,
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ID: row.id,
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Timestamp: row.timestamp,
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},
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MessageEvent: events.MessageEvent{
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Body: row.body,
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RawBody: row.body,
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},
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Image: row.image,
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Link: *row.link,
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UserAccountName: *row.title,
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}
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return message
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}
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type rowData struct {
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id string
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userID *string
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body string
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eventType models.EventType
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hiddenAt *time.Time
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timestamp time.Time
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title *string
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subtitle *string
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image *string
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link *string
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userDisplayName *string
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userDisplayColor *int
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userCreatedAt *time.Time
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userDisabledAt *time.Time
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previousUsernames *string
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userNameChangedAt *time.Time
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userAuthenticatedAt *time.Time
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userScopes *string
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userType *string
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}
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func getChat(query string) []interface{} {
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history := make([]interface{}, 0)
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rows, err := _datastore.DB.Query(query)
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if err != nil || rows.Err() != nil {
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log.Errorln("error fetching chat history", err)
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return history
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}
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defer rows.Close()
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for rows.Next() {
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row := rowData{}
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// Convert a database row into a chat event
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if err = rows.Scan(
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&row.id,
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&row.userID,
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&row.body,
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&row.title,
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&row.subtitle,
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&row.image,
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&row.link,
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&row.eventType,
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&row.hiddenAt,
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&row.timestamp,
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&row.userDisplayName,
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&row.userDisplayColor,
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&row.userCreatedAt,
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&row.userDisabledAt,
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&row.previousUsernames,
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&row.userNameChangedAt,
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&row.userAuthenticatedAt,
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&row.userScopes,
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&row.userType,
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); err != nil {
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log.Errorln(err)
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log.Errorln("There is a problem converting query to chat objects. Please report this:", query)
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break
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}
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var message interface{}
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switch row.eventType {
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case events.MessageSent:
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message = makeUserMessageEventFromRowData(row)
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case events.SystemMessageSent:
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message = makeSystemMessageChatEventFromRowData(row)
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case events.ChatActionSent:
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message = makeActionMessageChatEventFromRowData(row)
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case events.FediverseEngagementFollow:
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message = makeFederatedActionChatEventFromRowData(row)
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case events.FediverseEngagementLike:
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message = makeFederatedActionChatEventFromRowData(row)
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case events.FediverseEngagementRepost:
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message = makeFederatedActionChatEventFromRowData(row)
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}
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history = append(history, message)
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}
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return history
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}
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var _historyCache *[]interface{}
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// GetChatModerationHistory will return all the chat messages suitable for moderation purposes.
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func GetChatModerationHistory() []interface{} {
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if _historyCache != nil {
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return *_historyCache
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}
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// Get all messages regardless of visibility
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query := "SELECT messages.id, user_id, body, title, subtitle, image, link, eventType, hidden_at, timestamp, display_name, display_color, created_at, disabled_at, previous_names, namechanged_at, authenticated_at, scopes, type FROM messages INNER JOIN users ON messages.user_id = users.id ORDER BY timestamp DESC"
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result := getChat(query)
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_historyCache = &result
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return result
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}
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// GetChatHistory will return all the chat messages suitable for returning as user-facing chat history.
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func GetChatHistory() []interface{} {
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// Get all visible messages
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query := fmt.Sprintf("SELECT messages.id, messages.user_id, messages.body, messages.title, messages.subtitle, messages.image, messages.link, messages.eventType, messages.hidden_at, messages.timestamp, users.display_name, users.display_color, users.created_at, users.disabled_at, users.previous_names, users.namechanged_at, users.authenticated_at, users.scopes, users.type FROM users JOIN messages ON users.id = messages.user_id WHERE hidden_at IS NULL AND disabled_at IS NULL ORDER BY timestamp DESC LIMIT %d", maxBacklogNumber)
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m := getChat(query)
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// Invert order of messages
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for i, j := 0, len(m)-1; i < j; i, j = i+1, j-1 {
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m[i], m[j] = m[j], m[i]
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}
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return m
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}
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// GetMessagesFromUser returns chat messages that were sent by a specific user.
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func GetMessagesFromUser(userID string) ([]events.UserMessageEvent, error) {
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query, err := _datastore.GetQueries().GetMessagesFromUser(context.Background(), sql.NullString{String: userID, Valid: true})
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if err != nil {
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return nil, err
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}
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results := make([]events.UserMessageEvent, len(query))
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for i, row := range query {
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results[i] = events.UserMessageEvent{
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Event: events.Event{
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Timestamp: row.Timestamp.Time,
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ID: row.ID,
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},
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MessageEvent: events.MessageEvent{
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Body: row.Body.String,
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},
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}
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}
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return results, nil
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}
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// SetMessageVisibilityForUserID will bulk change the visibility of messages for a user
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// and then send out visibility changed events to chat clients.
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func SetMessageVisibilityForUserID(userID string, visible bool) error {
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defer func() {
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_historyCache = nil
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}()
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// Get a list of IDs to send to the connected clients to hide
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ids := make([]string, 0)
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query := fmt.Sprintf("SELECT messages.id, user_id, body, title, subtitle, image, link, eventType, hidden_at, timestamp, display_name, display_color, created_at, disabled_at, previous_names, namechanged_at, authenticated_at, scopes, type FROM messages INNER JOIN users ON messages.user_id = users.id WHERE user_id IS '%s'", userID)
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messages := getChat(query)
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if len(messages) == 0 {
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return nil
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}
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for _, message := range messages {
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ids = append(ids, message.(events.UserMessageEvent).ID)
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}
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// Tell the clients to hide/show these messages.
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return SetMessagesVisibility(ids, visible)
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}
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func saveMessageVisibility(messageIDs []string, visible bool) error {
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defer func() {
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_historyCache = nil
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}()
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_datastore.DbLock.Lock()
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defer _datastore.DbLock.Unlock()
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tx, err := _datastore.DB.Begin()
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if err != nil {
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return err
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}
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// nolint:gosec
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stmt, err := tx.Prepare("UPDATE messages SET hidden_at=? WHERE id IN (?" + strings.Repeat(",?", len(messageIDs)-1) + ")")
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if err != nil {
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return err
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}
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defer stmt.Close()
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var hiddenAt *time.Time
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if !visible {
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now := time.Now()
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hiddenAt = &now
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} else {
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hiddenAt = nil
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}
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args := make([]interface{}, len(messageIDs)+1)
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args[0] = hiddenAt
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for i, id := range messageIDs {
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args[i+1] = id
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}
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if _, err = stmt.Exec(args...); err != nil {
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return err
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}
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if err = tx.Commit(); err != nil {
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return err
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}
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return nil
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}
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