mirror of
https://github.com/binwiederhier/ntfy.git
synced 2024-08-23 11:33:52 +02:00
191 lines
5.5 KiB
Go
191 lines
5.5 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/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 TABLE IF NOT EXISTS schemaVersion (
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id INT PRIMARY KEY,
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version INT NOT NULL
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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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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, user_id 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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)
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// Schema management queries
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const (
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currentWebPushSchemaVersion = 1
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insertWebPushSchemaVersion = `INSERT INTO schemaVersion VALUES (1, ?)`
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selectWebPushSchemaVersionQuery = `SELECT version FROM schemaVersion WHERE id = 1`
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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 := setupWebPushDB(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 setupWebPushDB(db *sql.DB) error {
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// If 'schemaVersion' table does not exist, this must be a new database
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rows, err := db.Query(selectWebPushSchemaVersionQuery)
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if err != nil {
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return setupNewWebPushDB(db)
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}
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return rows.Close()
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}
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func setupNewWebPushDB(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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if _, err := db.Exec(insertWebPushSchemaVersion, currentWebPushSchemaVersion); 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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// UpsertSubscription adds or updates Web Push subscriptions for the given topics and user ID. It always first deletes all
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// existing entries for a given endpoint.
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func (c *webPushStore) UpsertSubscription(endpoint string, topics []string, userID, auth, p256dh string) 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 := tx.Exec(deleteWebPushSubscriptionByEndpointQuery, 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 = tx.Exec(insertWebPushSubscriptionQuery, topic, userID, endpoint, auth, p256dh); 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) SubscriptionsForTopic(topic string) ([]*webPushSubscription, 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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subscriptions := make([]*webPushSubscription, 0)
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for rows.Next() {
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var endpoint, auth, p256dh, userID 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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subscriptions = append(subscriptions, &webPushSubscription{
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Endpoint: endpoint,
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Auth: auth,
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P256dh: p256dh,
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UserID: userID,
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})
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}
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return subscriptions, nil
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}
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func (c *webPushStore) ExpireAndGetExpiringSubscriptions(warningDuration time.Duration, expiryDuration time.Duration) ([]*webPushSubscription, 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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subscriptions := make([]*webPushSubscription, 0)
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for rows.Next() {
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var endpoint, auth, p256dh, userID 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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subscriptions = append(subscriptions, &webPushSubscription{
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Endpoint: endpoint,
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Auth: auth,
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P256dh: p256dh,
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UserID: userID,
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})
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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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if err = tx.Commit(); err != nil {
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return nil, err
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}
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return subscriptions, nil
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}
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func (c *webPushStore) RemoveSubscriptionsByEndpoint(endpoint string) error {
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_, err := c.db.Exec(deleteWebPushSubscriptionByEndpointQuery, endpoint)
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return err
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}
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func (c *webPushStore) RemoveSubscriptionsByUserID(userID string) error {
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_, err := c.db.Exec(deleteWebPushSubscriptionByUserIDQuery, userID)
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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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