mirror of
https://github.com/binwiederhier/ntfy.git
synced 2024-08-21 10:43:49 +02:00
199 lines
5.4 KiB
Go
199 lines
5.4 KiB
Go
package server
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import (
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"database/sql"
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"fmt"
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"time"
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"github.com/SherClockHolmes/webpush-go"
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_ "github.com/mattn/go-sqlite3" // SQLite driver
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)
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const (
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createWebPushSubscriptionsTableQuery = `
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BEGIN;
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CREATE TABLE IF NOT EXISTS subscriptions (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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topic TEXT NOT NULL,
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user_id TEXT,
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endpoint TEXT NOT NULL,
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key_auth TEXT NOT NULL,
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key_p256dh TEXT NOT NULL,
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updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
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warning_sent BOOLEAN DEFAULT FALSE
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);
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CREATE INDEX IF NOT EXISTS idx_topic ON subscriptions (topic);
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CREATE INDEX IF NOT EXISTS idx_endpoint ON subscriptions (endpoint);
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CREATE UNIQUE INDEX IF NOT EXISTS idx_topic_endpoint ON subscriptions (topic, endpoint);
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COMMIT;
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`
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insertWebPushSubscriptionQuery = `
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INSERT OR REPLACE INTO subscriptions (topic, user_id, endpoint, key_auth, key_p256dh)
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VALUES (?, ?, ?, ?, ?)
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`
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deleteWebPushSubscriptionByEndpointQuery = `DELETE FROM subscriptions WHERE endpoint = ?`
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deleteWebPushSubscriptionByUserIDQuery = `DELETE FROM subscriptions WHERE user_id = ?`
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deleteWebPushSubscriptionByTopicAndEndpointQuery = `DELETE FROM subscriptions WHERE topic = ? AND endpoint = ?`
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deleteWebPushSubscriptionsByAgeQuery = `DELETE FROM subscriptions WHERE warning_sent = 1 AND updated_at <= datetime('now', ?)`
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selectWebPushSubscriptionsForTopicQuery = `SELECT endpoint, key_auth, key_p256dh, user_id FROM subscriptions WHERE topic = ?`
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selectWebPushSubscriptionsExpiringSoonQuery = `SELECT DISTINCT endpoint, key_auth, key_p256dh FROM subscriptions WHERE warning_sent = 0 AND updated_at <= datetime('now', ?)`
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updateWarningSentQuery = `UPDATE subscriptions SET warning_sent = true WHERE warning_sent = 0 AND updated_at <= datetime('now', ?)`
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selectWebPushSubscriptionsCountQuery = `SELECT COUNT(*) FROM subscriptions`
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)
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type webPushStore struct {
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db *sql.DB
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}
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func newWebPushStore(filename string) (*webPushStore, error) {
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db, err := sql.Open("sqlite3", filename)
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if err != nil {
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return nil, err
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}
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if err := setupSubscriptionsDB(db); err != nil {
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return nil, err
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}
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return &webPushStore{
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db: db,
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}, nil
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}
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func setupSubscriptionsDB(db *sql.DB) error {
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// If 'subscriptions' table does not exist, this must be a new database
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rows, err := db.Query(selectWebPushSubscriptionsCountQuery)
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if err != nil {
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return setupNewSubscriptionsDB(db)
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}
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return rows.Close()
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}
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func setupNewSubscriptionsDB(db *sql.DB) error {
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if _, err := db.Exec(createWebPushSubscriptionsTableQuery); 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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func (c *webPushStore) UpdateSubscriptions(topics []string, userID string, subscription webpush.Subscription) error {
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tx, err := c.db.Begin()
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if err != nil {
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return err
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}
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defer tx.Rollback()
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if err = c.RemoveByEndpoint(subscription.Endpoint); err != nil {
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return err
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}
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for _, topic := range topics {
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if err := c.AddSubscription(topic, userID, subscription); err != nil {
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return err
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}
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}
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return tx.Commit()
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}
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func (c *webPushStore) AddSubscription(topic string, userID string, subscription webpush.Subscription) error {
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_, err := c.db.Exec(
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insertWebPushSubscriptionQuery,
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topic,
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userID,
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subscription.Endpoint,
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subscription.Keys.Auth,
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subscription.Keys.P256dh,
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)
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return err
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}
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func (c *webPushStore) SubscriptionsForTopic(topic string) (subscriptions []*webPushSubscription, err error) {
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rows, err := c.db.Query(selectWebPushSubscriptionsForTopicQuery, topic)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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var data []*webPushSubscription
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for rows.Next() {
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var userID, endpoint, auth, p256dh string
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if err = rows.Scan(&endpoint, &auth, &p256dh, &userID); err != nil {
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return nil, err
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}
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data = append(data, &webPushSubscription{
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UserID: userID,
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BrowserSubscription: webpush.Subscription{
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Endpoint: endpoint,
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Keys: webpush.Keys{
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Auth: auth,
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P256dh: p256dh,
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},
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},
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})
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}
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return data, nil
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}
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func (c *webPushStore) ExpireAndGetExpiringSubscriptions(warningDuration time.Duration, expiryDuration time.Duration) (subscriptions []webPushSubscription, err error) {
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// TODO this should be two functions
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tx, err := c.db.Begin()
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if err != nil {
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return nil, err
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}
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defer tx.Rollback()
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_, err = tx.Exec(deleteWebPushSubscriptionsByAgeQuery, fmt.Sprintf("-%.2f seconds", expiryDuration.Seconds()))
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if err != nil {
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return nil, err
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}
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rows, err := tx.Query(selectWebPushSubscriptionsExpiringSoonQuery, fmt.Sprintf("-%.2f seconds", warningDuration.Seconds()))
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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var data []webPushSubscription
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for rows.Next() {
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i := webPushSubscription{}
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err = rows.Scan(&i.BrowserSubscription.Endpoint, &i.BrowserSubscription.Keys.Auth, &i.BrowserSubscription.Keys.P256dh)
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fmt.Printf("%v+", i)
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if err != nil {
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return nil, err
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}
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data = append(data, i)
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}
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// also set warning as sent
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_, err = tx.Exec(updateWarningSentQuery, fmt.Sprintf("-%.2f seconds", warningDuration.Seconds()))
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if err != nil {
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return nil, err
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}
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err = tx.Commit()
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if err != nil {
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return nil, err
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}
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return data, nil
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}
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func (c *webPushStore) RemoveByEndpoint(endpoint string) error {
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_, err := c.db.Exec(
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deleteWebPushSubscriptionByEndpointQuery,
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endpoint,
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)
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return err
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}
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func (c *webPushStore) RemoveByUserID(userID string) error {
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_, err := c.db.Exec(
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deleteWebPushSubscriptionByUserIDQuery,
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userID,
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)
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return err
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}
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func (c *webPushStore) Close() error {
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return c.db.Close()
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}
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