status-go/protocol/persistence.go

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package protocol
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import (
"bytes"
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"context"
"database/sql"
"encoding/gob"
"encoding/json"
"time"
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"github.com/pkg/errors"
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"github.com/ethereum/go-ethereum/log"
"github.com/mat/besticon/besticon"
"github.com/status-im/status-go/eth-node/crypto"
"github.com/status-im/status-go/images"
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"github.com/status-im/status-go/protocol/common"
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"github.com/status-im/status-go/protocol/protobuf"
"github.com/status-im/status-go/services/browsers"
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)
var (
// ErrMsgAlreadyExist returned if msg already exist.
ErrMsgAlreadyExist = errors.New("message with given ID already exist")
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HoursInTwoWeeks = 336
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)
// sqlitePersistence wrapper around sql db with operations common for a client.
type sqlitePersistence struct {
*common.RawMessagesPersistence
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db *sql.DB
}
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func newSQLitePersistence(db *sql.DB) *sqlitePersistence {
return &sqlitePersistence{common.NewRawMessagesPersistence(db), db}
}
func (db sqlitePersistence) SaveChat(chat Chat) error {
err := chat.Validate()
if err != nil {
return err
}
return db.saveChat(nil, chat)
}
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func (db sqlitePersistence) SaveChats(chats []*Chat) error {
tx, err := db.db.BeginTx(context.Background(), &sql.TxOptions{})
if err != nil {
return err
}
defer func() {
if err == nil {
err = tx.Commit()
return
}
// don't shadow original error
_ = tx.Rollback()
}()
for _, chat := range chats {
err := db.saveChat(tx, *chat)
if err != nil {
return err
}
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}
return nil
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}
func (db sqlitePersistence) SaveContacts(contacts []*Contact) error {
tx, err := db.db.BeginTx(context.Background(), &sql.TxOptions{})
if err != nil {
return err
}
defer func() {
if err == nil {
err = tx.Commit()
return
}
// don't shadow original error
_ = tx.Rollback()
}()
for _, contact := range contacts {
err := db.SaveContact(contact, tx)
if err != nil {
return err
}
}
return nil
}
func (db sqlitePersistence) saveChat(tx *sql.Tx, chat Chat) error {
var err error
if tx == nil {
tx, err = db.db.BeginTx(context.Background(), &sql.TxOptions{})
if err != nil {
return err
}
defer func() {
if err == nil {
err = tx.Commit()
return
}
// don't shadow original error
_ = tx.Rollback()
}()
}
// Encode members
var encodedMembers bytes.Buffer
memberEncoder := gob.NewEncoder(&encodedMembers)
if err := memberEncoder.Encode(chat.Members); err != nil {
return err
}
// Encode membership updates
var encodedMembershipUpdates bytes.Buffer
membershipUpdatesEncoder := gob.NewEncoder(&encodedMembershipUpdates)
if err := membershipUpdatesEncoder.Encode(chat.MembershipUpdates); err != nil {
return err
}
// encode last message
var encodedLastMessage []byte
if chat.LastMessage != nil {
encodedLastMessage, err = json.Marshal(chat.LastMessage)
if err != nil {
return err
}
}
// Insert record
stmt, err := tx.Prepare(`INSERT INTO chats(id, name, color, emoji, active, type, timestamp, deleted_at_clock_value, unviewed_message_count, unviewed_mentions_count, last_clock_value, last_message, members, membership_updates, muted, invitation_admin, profile, community_id, joined, synced_from, synced_to, description, highlight, read_messages_at_clock_value, received_invitation_admin)
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?,?, ?,?,?,?,?,?,?,?,?,?,?)`)
if err != nil {
return err
}
defer stmt.Close()
_, err = stmt.Exec(
chat.ID,
chat.Name,
chat.Color,
chat.Emoji,
chat.Active,
chat.ChatType,
chat.Timestamp,
chat.DeletedAtClockValue,
chat.UnviewedMessagesCount,
chat.UnviewedMentionsCount,
chat.LastClockValue,
encodedLastMessage,
encodedMembers.Bytes(),
encodedMembershipUpdates.Bytes(),
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chat.Muted,
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chat.InvitationAdmin,
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chat.Profile,
chat.CommunityID,
chat.Joined,
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chat.SyncedFrom,
chat.SyncedTo,
chat.Description,
chat.Highlight,
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chat.ReadMessagesAtClockValue,
chat.ReceivedInvitationAdmin,
)
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if err != nil {
return err
}
return err
}
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func (db sqlitePersistence) SetSyncTimestamps(syncedFrom, syncedTo uint32, chatID string) error {
_, err := db.db.Exec(`UPDATE chats SET synced_from = ?, synced_to = ? WHERE id = ?`, syncedFrom, syncedTo, chatID)
return err
}
func (db sqlitePersistence) DeleteChat(chatID string) (err error) {
var tx *sql.Tx
tx, err = db.db.BeginTx(context.Background(), &sql.TxOptions{})
if err != nil {
return
}
defer func() {
if err == nil {
err = tx.Commit()
return
}
// don't shadow original error
_ = tx.Rollback()
}()
_, err = tx.Exec("DELETE FROM chats WHERE id = ?", chatID)
if err != nil {
return
}
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_, err = tx.Exec(`DELETE FROM user_messages WHERE local_chat_id = ?`, chatID)
return
}
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func (db sqlitePersistence) MuteChat(chatID string) error {
_, err := db.db.Exec("UPDATE chats SET muted = 1 WHERE id = ?", chatID)
return err
}
func (db sqlitePersistence) UnmuteChat(chatID string) error {
_, err := db.db.Exec("UPDATE chats SET muted = 0 WHERE id = ?", chatID)
return err
}
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func (db sqlitePersistence) Chats() ([]*Chat, error) {
return db.chats(nil)
}
func (db sqlitePersistence) chats(tx *sql.Tx) (chats []*Chat, err error) {
if tx == nil {
tx, err = db.db.BeginTx(context.Background(), &sql.TxOptions{})
if err != nil {
return
}
defer func() {
if err == nil {
err = tx.Commit()
return
}
// don't shadow original error
_ = tx.Rollback()
}()
}
rows, err := tx.Query(`
SELECT
chats.id,
chats.name,
chats.color,
chats.emoji,
chats.active,
chats.type,
chats.timestamp,
chats.deleted_at_clock_value,
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chats.read_messages_at_clock_value,
chats.unviewed_message_count,
chats.unviewed_mentions_count,
chats.last_clock_value,
chats.last_message,
chats.members,
chats.membership_updates,
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chats.muted,
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chats.invitation_admin,
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chats.profile,
chats.community_id,
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chats.joined,
chats.synced_from,
chats.synced_to,
chats.description,
contacts.alias,
chats.highlight,
chats.received_invitation_admin
FROM chats LEFT JOIN contacts ON chats.id = contacts.id
ORDER BY chats.timestamp DESC
`)
if err != nil {
return
}
defer rows.Close()
for rows.Next() {
var (
alias sql.NullString
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invitationAdmin sql.NullString
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profile sql.NullString
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syncedFrom sql.NullInt64
syncedTo sql.NullInt64
chat Chat
encodedMembers []byte
encodedMembershipUpdates []byte
lastMessageBytes []byte
)
err = rows.Scan(
&chat.ID,
&chat.Name,
&chat.Color,
&chat.Emoji,
&chat.Active,
&chat.ChatType,
&chat.Timestamp,
&chat.DeletedAtClockValue,
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&chat.ReadMessagesAtClockValue,
&chat.UnviewedMessagesCount,
&chat.UnviewedMentionsCount,
&chat.LastClockValue,
&lastMessageBytes,
&encodedMembers,
&encodedMembershipUpdates,
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&chat.Muted,
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&invitationAdmin,
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&profile,
&chat.CommunityID,
&chat.Joined,
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&syncedFrom,
&syncedTo,
&chat.Description,
&alias,
&chat.Highlight,
&chat.ReceivedInvitationAdmin,
)
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if err != nil {
return
}
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if invitationAdmin.Valid {
chat.InvitationAdmin = invitationAdmin.String
}
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if profile.Valid {
chat.Profile = profile.String
}
// Restore members
membersDecoder := gob.NewDecoder(bytes.NewBuffer(encodedMembers))
err = membersDecoder.Decode(&chat.Members)
if err != nil {
return
}
// Restore membership updates
membershipUpdatesDecoder := gob.NewDecoder(bytes.NewBuffer(encodedMembershipUpdates))
err = membershipUpdatesDecoder.Decode(&chat.MembershipUpdates)
if err != nil {
return
}
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if syncedFrom.Valid {
chat.SyncedFrom = uint32(syncedFrom.Int64)
}
if syncedTo.Valid {
chat.SyncedTo = uint32(syncedTo.Int64)
}
// Restore last message
if lastMessageBytes != nil {
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message := &common.Message{}
if err = json.Unmarshal(lastMessageBytes, message); err != nil {
return
}
chat.LastMessage = message
}
chat.Alias = alias.String
chats = append(chats, &chat)
}
return
}
func (db sqlitePersistence) Chat(chatID string) (*Chat, error) {
var (
chat Chat
encodedMembers []byte
encodedMembershipUpdates []byte
lastMessageBytes []byte
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invitationAdmin sql.NullString
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profile sql.NullString
syncedFrom sql.NullInt64
syncedTo sql.NullInt64
)
err := db.db.QueryRow(`
SELECT
id,
name,
color,
emoji,
active,
type,
timestamp,
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read_messages_at_clock_value,
deleted_at_clock_value,
unviewed_message_count,
unviewed_mentions_count,
last_clock_value,
last_message,
members,
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membership_updates,
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muted,
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invitation_admin,
profile,
community_id,
joined,
description,
highlight,
received_invitation_admin,
synced_from,
synced_to
FROM chats
WHERE id = ?
`, chatID).Scan(&chat.ID,
&chat.Name,
&chat.Color,
&chat.Emoji,
&chat.Active,
&chat.ChatType,
&chat.Timestamp,
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&chat.ReadMessagesAtClockValue,
&chat.DeletedAtClockValue,
&chat.UnviewedMessagesCount,
&chat.UnviewedMentionsCount,
&chat.LastClockValue,
&lastMessageBytes,
&encodedMembers,
&encodedMembershipUpdates,
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&chat.Muted,
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&invitationAdmin,
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&profile,
&chat.CommunityID,
&chat.Joined,
&chat.Description,
&chat.Highlight,
&chat.ReceivedInvitationAdmin,
&syncedFrom,
&syncedTo,
)
switch err {
case sql.ErrNoRows:
return nil, nil
case nil:
if syncedFrom.Valid {
chat.SyncedFrom = uint32(syncedFrom.Int64)
}
if syncedTo.Valid {
chat.SyncedTo = uint32(syncedTo.Int64)
}
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if invitationAdmin.Valid {
chat.InvitationAdmin = invitationAdmin.String
}
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if profile.Valid {
chat.Profile = profile.String
}
// Restore members
membersDecoder := gob.NewDecoder(bytes.NewBuffer(encodedMembers))
err = membersDecoder.Decode(&chat.Members)
if err != nil {
return nil, err
}
// Restore membership updates
membershipUpdatesDecoder := gob.NewDecoder(bytes.NewBuffer(encodedMembershipUpdates))
err = membershipUpdatesDecoder.Decode(&chat.MembershipUpdates)
if err != nil {
return nil, err
}
// Restore last message
if lastMessageBytes != nil {
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message := &common.Message{}
if err = json.Unmarshal(lastMessageBytes, message); err != nil {
return nil, err
}
chat.LastMessage = message
}
return &chat, nil
}
return nil, err
}
func (db sqlitePersistence) Contacts() ([]*Contact, error) {
allContacts := make(map[string]*Contact)
rows, err := db.db.Query(`
SELECT
c.id,
c.address,
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v.name,
v.verified,
c.alias,
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c.display_name,
c.identicon,
c.last_updated,
c.last_updated_locally,
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c.added,
c.blocked,
c.removed,
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c.has_added_us,
c.local_nickname,
c.contact_request_state,
c.contact_request_clock,
i.image_type,
i.payload,
COALESCE(c.verification_status, 0) as verification_status,
COALESCE(t.trust_status, 0) as trust_status
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FROM contacts c
LEFT JOIN chat_identity_contacts i ON c.id = i.contact_id
LEFT JOIN ens_verification_records v ON c.id = v.public_key
LEFT JOIN trusted_users t ON c.id = t.id;
`)
if err != nil {
return nil, err
}
defer rows.Close()
for rows.Next() {
var (
contact Contact
nickname sql.NullString
contactRequestState sql.NullInt64
contactRequestClock sql.NullInt64
displayName sql.NullString
imageType sql.NullString
ensName sql.NullString
ensVerified sql.NullBool
added sql.NullBool
blocked sql.NullBool
removed sql.NullBool
hasAddedUs sql.NullBool
lastUpdatedLocally sql.NullInt64
imagePayload []byte
)
contact.Images = make(map[string]images.IdentityImage)
err := rows.Scan(
&contact.ID,
&contact.Address,
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&ensName,
&ensVerified,
&contact.Alias,
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&displayName,
&contact.Identicon,
&contact.LastUpdated,
&lastUpdatedLocally,
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&added,
&blocked,
&removed,
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&hasAddedUs,
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&nickname,
&contactRequestState,
&contactRequestClock,
&imageType,
&imagePayload,
&contact.VerificationStatus,
&contact.TrustStatus,
)
if err != nil {
return nil, err
}
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if nickname.Valid {
contact.LocalNickname = nickname.String
}
if contactRequestState.Valid {
contact.ContactRequestState = ContactRequestState(contactRequestState.Int64)
}
if contactRequestClock.Valid {
contact.ContactRequestClock = uint64(contactRequestClock.Int64)
}
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if displayName.Valid {
contact.DisplayName = displayName.String
}
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if ensName.Valid {
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contact.EnsName = ensName.String
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}
if ensVerified.Valid {
contact.ENSVerified = ensVerified.Bool
}
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if added.Valid {
contact.Added = added.Bool
}
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if blocked.Valid {
contact.Blocked = blocked.Bool
}
if removed.Valid {
contact.Removed = removed.Bool
}
if lastUpdatedLocally.Valid {
contact.LastUpdatedLocally = uint64(lastUpdatedLocally.Int64)
}
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if hasAddedUs.Valid {
contact.HasAddedUs = hasAddedUs.Bool
}
previousContact, ok := allContacts[contact.ID]
if !ok {
if imageType.Valid {
contact.Images[imageType.String] = images.IdentityImage{Name: imageType.String, Payload: imagePayload}
}
allContacts[contact.ID] = &contact
} else if imageType.Valid {
previousContact.Images[imageType.String] = images.IdentityImage{Name: imageType.String, Payload: imagePayload}
allContacts[contact.ID] = previousContact
}
}
var response []*Contact
for key := range allContacts {
response = append(response, allContacts[key])
}
return response, nil
}
func (db sqlitePersistence) SaveContactChatIdentity(contactID string, chatIdentity *protobuf.ChatIdentity) (updated bool, err error) {
if chatIdentity.Clock == 0 {
return false, errors.New("clock value unset")
}
tx, err := db.db.BeginTx(context.Background(), &sql.TxOptions{})
if err != nil {
return false, err
}
defer func() {
if err == nil {
err = tx.Commit()
return
}
// don't shadow original error
_ = tx.Rollback()
}()
for imageType, image := range chatIdentity.Images {
var exists bool
err := tx.QueryRow(`SELECT EXISTS(SELECT 1 FROM chat_identity_contacts WHERE contact_id = ? AND image_type = ? AND clock_value >= ?)`, contactID, imageType, chatIdentity.Clock).Scan(&exists)
if err != nil {
return false, err
}
if exists {
continue
}
stmt, err := tx.Prepare(`INSERT INTO chat_identity_contacts (contact_id, image_type, clock_value, payload) VALUES (?, ?, ?, ?)`)
if err != nil {
return false, err
}
defer stmt.Close()
if image.Payload == nil {
continue
}
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// TODO implement something that doesn't reject all images if a single image fails validation
// Validate image URI to make sure it's serializable
_, err = images.GetPayloadDataURI(image.Payload)
if err != nil {
return false, err
}
_, err = stmt.Exec(
contactID,
imageType,
chatIdentity.Clock,
image.Payload,
)
if err != nil {
return false, err
}
updated = true
}
return
}
func (db sqlitePersistence) ExpiredMessagesIDs(maxSendCount int) ([]string, error) {
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ids := []string{}
rows, err := db.db.Query(`
SELECT
id
FROM
raw_messages
WHERE
message_type IN (?, ?) AND sent = ? AND send_count <= ?`,
protobuf.ApplicationMetadataMessage_CHAT_MESSAGE,
protobuf.ApplicationMetadataMessage_EMOJI_REACTION,
false,
maxSendCount)
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if err != nil {
return ids, err
}
defer rows.Close()
for rows.Next() {
var id string
if err := rows.Scan(&id); err != nil {
return ids, err
}
ids = append(ids, id)
}
return ids, nil
}
func (db sqlitePersistence) SaveContact(contact *Contact, tx *sql.Tx) (err error) {
if tx == nil {
tx, err = db.db.BeginTx(context.Background(), &sql.TxOptions{})
if err != nil {
return
}
defer func() {
if err == nil {
err = tx.Commit()
return
}
// don't shadow original error
_ = tx.Rollback()
}()
}
// Insert record
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// NOTE: name, photo and tribute_to_talk are not used anymore, but it's not nullable
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// Removing it requires copying over the table which might be expensive
// when there are many contacts, so best avoiding it
stmt, err := tx.Prepare(`
INSERT INTO contacts(
id,
address,
alias,
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display_name,
identicon,
last_updated,
last_updated_locally,
local_nickname,
contact_request_state,
contact_request_clock,
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added,
blocked,
removed,
verification_status,
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has_added_us,
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name,
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photo,
tribute_to_talk
) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
`)
if err != nil {
return
}
defer stmt.Close()
_, err = stmt.Exec(
contact.ID,
contact.Address,
contact.Alias,
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contact.DisplayName,
contact.Identicon,
contact.LastUpdated,
contact.LastUpdatedLocally,
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contact.LocalNickname,
contact.ContactRequestState,
contact.ContactRequestClock,
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contact.Added,
contact.Blocked,
contact.Removed,
contact.VerificationStatus,
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contact.HasAddedUs,
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//TODO we need to drop these columns
"",
"",
"",
)
return
}
func (db sqlitePersistence) SaveTransactionToValidate(transaction *TransactionToValidate) error {
compressedKey := crypto.CompressPubkey(transaction.From)
_, err := db.db.Exec(`INSERT INTO messenger_transactions_to_validate(
command_id,
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message_id,
transaction_hash,
retry_count,
first_seen,
public_key,
signature,
to_validate)
VALUES (?, ?, ?, ?, ?, ?, ?, ?)`,
transaction.CommandID,
transaction.MessageID,
transaction.TransactionHash,
transaction.RetryCount,
transaction.FirstSeen,
compressedKey,
transaction.Signature,
transaction.Validate,
)
return err
}
func (db sqlitePersistence) UpdateTransactionToValidate(transaction *TransactionToValidate) error {
_, err := db.db.Exec(`UPDATE messenger_transactions_to_validate
SET retry_count = ?, to_validate = ?
WHERE transaction_hash = ?`,
transaction.RetryCount,
transaction.Validate,
transaction.TransactionHash,
)
return err
}
func (db sqlitePersistence) TransactionsToValidate() ([]*TransactionToValidate, error) {
var transactions []*TransactionToValidate
rows, err := db.db.Query(`
SELECT
command_id,
message_id,
transaction_hash,
retry_count,
first_seen,
public_key,
signature,
to_validate
FROM messenger_transactions_to_validate
WHERE to_validate = 1;
`)
if err != nil {
return nil, err
}
defer rows.Close()
for rows.Next() {
var t TransactionToValidate
var pkBytes []byte
err = rows.Scan(
&t.CommandID,
&t.MessageID,
&t.TransactionHash,
&t.RetryCount,
&t.FirstSeen,
&pkBytes,
&t.Signature,
&t.Validate,
)
if err != nil {
return nil, err
}
publicKey, err := crypto.DecompressPubkey(pkBytes)
if err != nil {
return nil, err
}
t.From = publicKey
transactions = append(transactions, &t)
}
return transactions, nil
}
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func (db sqlitePersistence) GetWhenChatIdentityLastPublished(chatID string) (t int64, hash []byte, err error) {
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rows, err := db.db.Query("SELECT clock_value, hash FROM chat_identity_last_published WHERE chat_id = ?", chatID)
if err != nil {
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return t, nil, err
}
defer func() {
err = rows.Close()
}()
for rows.Next() {
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err = rows.Scan(&t, &hash)
if err != nil {
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return t, nil, err
}
}
return t, hash, nil
}
func (db sqlitePersistence) SaveWhenChatIdentityLastPublished(chatID string, hash []byte) (err error) {
tx, err := db.db.BeginTx(context.Background(), &sql.TxOptions{})
if err != nil {
return err
}
defer func() {
if err == nil {
err = tx.Commit()
return
}
// don't shadow original error
_ = tx.Rollback()
}()
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stmt, err := tx.Prepare("INSERT INTO chat_identity_last_published (chat_id, clock_value, hash) VALUES (?, ?, ?)")
if err != nil {
return err
}
defer stmt.Close()
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_, err = stmt.Exec(chatID, time.Now().Unix(), hash)
if err != nil {
return err
}
return nil
}
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func (db sqlitePersistence) ResetWhenChatIdentityLastPublished(chatID string) (err error) {
tx, err := db.db.BeginTx(context.Background(), &sql.TxOptions{})
if err != nil {
return err
}
defer func() {
if err == nil {
err = tx.Commit()
return
}
// don't shadow original error
_ = tx.Rollback()
}()
stmt, err := tx.Prepare("INSERT INTO chat_identity_last_published (chat_id, clock_value, hash) VALUES (?, ?, ?)")
if err != nil {
return err
}
defer stmt.Close()
_, err = stmt.Exec(chatID, 0, []byte("."))
if err != nil {
return err
}
return nil
}
func (db sqlitePersistence) InsertStatusUpdate(userStatus UserStatus) error {
_, err := db.db.Exec(`INSERT INTO status_updates(
public_key,
status_type,
clock,
custom_text)
VALUES (?, ?, ?, ?)`,
userStatus.PublicKey,
userStatus.StatusType,
userStatus.Clock,
userStatus.CustomText,
)
return err
}
func (db sqlitePersistence) CleanOlderStatusUpdates() error {
now := time.Now()
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twoWeeksAgo := now.Add(time.Duration(-1*HoursInTwoWeeks) * time.Hour)
_, err := db.db.Exec(`DELETE FROM status_updates WHERE clock < ?`,
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uint64(twoWeeksAgo.Unix()),
)
return err
}
func (db sqlitePersistence) StatusUpdates() (statusUpdates []UserStatus, err error) {
rows, err := db.db.Query(`
SELECT
public_key,
status_type,
clock,
custom_text
FROM status_updates
`)
if err != nil {
return
}
defer rows.Close()
for rows.Next() {
var userStatus UserStatus
err = rows.Scan(
&userStatus.PublicKey,
&userStatus.StatusType,
&userStatus.Clock,
&userStatus.CustomText,
)
if err != nil {
return
}
statusUpdates = append(statusUpdates, userStatus)
}
return
}
func (db *sqlitePersistence) AddBookmark(bookmark browsers.Bookmark) (browsers.Bookmark, error) {
tx, err := db.db.Begin()
if err != nil {
return bookmark, err
}
defer func() {
if err == nil {
err = tx.Commit()
return
}
_ = tx.Rollback()
}()
insert, err := tx.Prepare("INSERT OR REPLACE INTO bookmarks (url, name, image_url, removed, clock) VALUES (?, ?, ?, ?, ?)")
if err != nil {
return bookmark, err
}
// Get the right icon
finder := besticon.IconFinder{}
icons, iconError := finder.FetchIcons(bookmark.URL)
if iconError == nil && len(icons) > 0 {
icon := finder.IconInSizeRange(besticon.SizeRange{48, 48, 100})
if icon != nil {
bookmark.ImageURL = icon.URL
} else {
bookmark.ImageURL = icons[0].URL
}
} else {
log.Error("error getting the bookmark icon", "iconError", iconError)
}
_, err = insert.Exec(bookmark.URL, bookmark.Name, bookmark.ImageURL, bookmark.Removed, bookmark.Clock)
return bookmark, err
}
func (db *sqlitePersistence) RemoveBookmark(url string, deletedAt uint64) error {
tx, err := db.db.Begin()
if err != nil {
return err
}
defer func() {
if err == nil {
err = tx.Commit()
return
}
_ = tx.Rollback()
}()
_, err = tx.Exec(`UPDATE bookmarks SET removed = 1, deleted_at = ? WHERE url = ?`, deletedAt, url)
return err
}
func (db *sqlitePersistence) GetBookmarkByURL(url string) (*browsers.Bookmark, error) {
bookmark := browsers.Bookmark{}
err := db.db.QueryRow(`SELECT url, name, image_url, removed, clock, deleted_at FROM bookmarks WHERE url = ?`, url).Scan(&bookmark.URL, &bookmark.Name, &bookmark.ImageURL, &bookmark.Removed, &bookmark.Clock, &bookmark.DeletedAt)
if err != nil {
return nil, err
}
return &bookmark, nil
}
func (db *sqlitePersistence) UpdateBookmark(oldURL string, bookmark browsers.Bookmark) error {
tx, err := db.db.Begin()
if err != nil {
return err
}
defer func() {
if err == nil {
err = tx.Commit()
return
}
_ = tx.Rollback()
}()
insert, err := tx.Prepare("UPDATE bookmarks SET url = ?, name = ?, image_url = ?, removed = ?, clock = ?, deleted_at = ? WHERE url = ?")
if err != nil {
return err
}
_, err = insert.Exec(bookmark.URL, bookmark.Name, bookmark.ImageURL, bookmark.Removed, bookmark.Clock, bookmark.DeletedAt, oldURL)
return err
}
func (db *sqlitePersistence) DeleteSoftRemovedBookmarks(threshold uint64) error {
tx, err := db.db.Begin()
if err != nil {
return err
}
defer func() {
if err == nil {
err = tx.Commit()
return
}
_ = tx.Rollback()
}()
_, err = tx.Exec(`DELETE from bookmarks WHERE removed = 1 AND deleted_at < ?`, threshold)
return err
}