mirror of
https://github.com/binwiederhier/ntfy.git
synced 2024-05-04 12:34:20 +12:00
711 lines
20 KiB
Go
711 lines
20 KiB
Go
package server
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import (
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"database/sql"
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"encoding/json"
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"errors"
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"fmt"
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"net/netip"
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"strings"
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"time"
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_ "github.com/mattn/go-sqlite3" // SQLite driver
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"heckel.io/ntfy/log"
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"heckel.io/ntfy/util"
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)
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var (
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errUnexpectedMessageType = errors.New("unexpected message type")
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)
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// Messages cache
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const (
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createMessagesTableQuery = `
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BEGIN;
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CREATE TABLE IF NOT EXISTS messages (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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mid TEXT NOT NULL,
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time INT NOT NULL,
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topic TEXT NOT NULL,
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message TEXT NOT NULL,
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title TEXT NOT NULL,
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priority INT NOT NULL,
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tags TEXT NOT NULL,
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click TEXT NOT NULL,
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icon TEXT NOT NULL,
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actions TEXT NOT NULL,
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attachment_name TEXT NOT NULL,
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attachment_type TEXT NOT NULL,
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attachment_size INT NOT NULL,
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attachment_expires INT NOT NULL,
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attachment_url TEXT NOT NULL,
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sender TEXT NOT NULL,
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encoding TEXT NOT NULL,
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published INT NOT NULL
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);
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CREATE INDEX IF NOT EXISTS idx_mid ON messages (mid);
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CREATE INDEX IF NOT EXISTS idx_time ON messages (time);
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CREATE INDEX IF NOT EXISTS idx_topic ON messages (topic);
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COMMIT;
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`
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insertMessageQuery = `
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INSERT INTO messages (mid, time, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, encoding, published)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
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`
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pruneMessagesQuery = `DELETE FROM messages WHERE time < ? AND published = 1`
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selectRowIDFromMessageID = `SELECT id FROM messages WHERE mid = ?` // Do not include topic, see #336 and TestServer_PollSinceID_MultipleTopics
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selectMessagesSinceTimeQuery = `
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SELECT mid, time, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, encoding
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FROM messages
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WHERE topic = ? AND time >= ? AND published = 1
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ORDER BY time, id
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`
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selectMessagesSinceTimeIncludeScheduledQuery = `
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SELECT mid, time, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, encoding
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FROM messages
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WHERE topic = ? AND time >= ?
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ORDER BY time, id
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`
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selectMessagesSinceIDQuery = `
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SELECT mid, time, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, encoding
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FROM messages
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WHERE topic = ? AND id > ? AND published = 1
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ORDER BY time, id
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`
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selectMessagesSinceIDIncludeScheduledQuery = `
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SELECT mid, time, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, encoding
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FROM messages
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WHERE topic = ? AND (id > ? OR published = 0)
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ORDER BY time, id
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`
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selectMessagesDueQuery = `
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SELECT mid, time, topic, message, title, priority, tags, click, icon, actions, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, sender, encoding
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FROM messages
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WHERE time <= ? AND published = 0
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ORDER BY time, id
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`
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updateMessagePublishedQuery = `UPDATE messages SET published = 1 WHERE mid = ?`
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selectMessagesCountQuery = `SELECT COUNT(*) FROM messages`
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selectMessageCountPerTopicQuery = `SELECT topic, COUNT(*) FROM messages GROUP BY topic`
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selectTopicsQuery = `SELECT topic FROM messages GROUP BY topic`
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selectAttachmentsSizeQuery = `SELECT IFNULL(SUM(attachment_size), 0) FROM messages WHERE sender = ? AND attachment_expires >= ?`
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)
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// Schema management queries
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const (
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currentSchemaVersion = 9
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createSchemaVersionTableQuery = `
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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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`
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insertSchemaVersion = `INSERT INTO schemaVersion VALUES (1, ?)`
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updateSchemaVersion = `UPDATE schemaVersion SET version = ? WHERE id = 1`
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selectSchemaVersionQuery = `SELECT version FROM schemaVersion WHERE id = 1`
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// 0 -> 1
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migrate0To1AlterMessagesTableQuery = `
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BEGIN;
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ALTER TABLE messages ADD COLUMN title TEXT NOT NULL DEFAULT('');
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ALTER TABLE messages ADD COLUMN priority INT NOT NULL DEFAULT(0);
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ALTER TABLE messages ADD COLUMN tags TEXT NOT NULL DEFAULT('');
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COMMIT;
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`
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// 1 -> 2
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migrate1To2AlterMessagesTableQuery = `
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ALTER TABLE messages ADD COLUMN published INT NOT NULL DEFAULT(1);
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`
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// 2 -> 3
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migrate2To3AlterMessagesTableQuery = `
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BEGIN;
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ALTER TABLE messages ADD COLUMN click TEXT NOT NULL DEFAULT('');
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ALTER TABLE messages ADD COLUMN attachment_name TEXT NOT NULL DEFAULT('');
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ALTER TABLE messages ADD COLUMN attachment_type TEXT NOT NULL DEFAULT('');
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ALTER TABLE messages ADD COLUMN attachment_size INT NOT NULL DEFAULT('0');
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ALTER TABLE messages ADD COLUMN attachment_expires INT NOT NULL DEFAULT('0');
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ALTER TABLE messages ADD COLUMN attachment_owner TEXT NOT NULL DEFAULT('');
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ALTER TABLE messages ADD COLUMN attachment_url TEXT NOT NULL DEFAULT('');
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COMMIT;
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`
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// 3 -> 4
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migrate3To4AlterMessagesTableQuery = `
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ALTER TABLE messages ADD COLUMN encoding TEXT NOT NULL DEFAULT('');
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`
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// 4 -> 5
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migrate4To5AlterMessagesTableQuery = `
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BEGIN;
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CREATE TABLE IF NOT EXISTS messages_new (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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mid TEXT NOT NULL,
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time INT NOT NULL,
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topic TEXT NOT NULL,
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message TEXT NOT NULL,
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title TEXT NOT NULL,
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priority INT NOT NULL,
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tags TEXT NOT NULL,
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click TEXT NOT NULL,
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attachment_name TEXT NOT NULL,
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attachment_type TEXT NOT NULL,
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attachment_size INT NOT NULL,
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attachment_expires INT NOT NULL,
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attachment_url TEXT NOT NULL,
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attachment_owner TEXT NOT NULL,
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encoding TEXT NOT NULL,
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published INT NOT NULL
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);
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CREATE INDEX IF NOT EXISTS idx_mid ON messages_new (mid);
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CREATE INDEX IF NOT EXISTS idx_topic ON messages_new (topic);
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INSERT
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INTO messages_new (
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mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type,
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attachment_size, attachment_expires, attachment_url, attachment_owner, encoding, published)
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SELECT
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id, time, topic, message, title, priority, tags, click, attachment_name, attachment_type,
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attachment_size, attachment_expires, attachment_url, attachment_owner, encoding, published
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FROM messages;
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DROP TABLE messages;
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ALTER TABLE messages_new RENAME TO messages;
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COMMIT;
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`
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// 5 -> 6
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migrate5To6AlterMessagesTableQuery = `
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ALTER TABLE messages ADD COLUMN actions TEXT NOT NULL DEFAULT('');
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`
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// 6 -> 7
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migrate6To7AlterMessagesTableQuery = `
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ALTER TABLE messages RENAME COLUMN attachment_owner TO sender;
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`
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// 7 -> 8
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migrate7To8AlterMessagesTableQuery = `
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ALTER TABLE messages ADD COLUMN icon TEXT NOT NULL DEFAULT('');
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`
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// 8 -> 9
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migrate8To9AlterMessagesTableQuery = `
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CREATE INDEX IF NOT EXISTS idx_time ON messages (time);
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`
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)
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type messageCache struct {
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db *sql.DB
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queue *util.BatchingQueue[*message]
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nop bool
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}
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// newSqliteCache creates a SQLite file-backed cache
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func newSqliteCache(filename, startupQueries string, batchSize int, batchTimeout time.Duration, nop bool) (*messageCache, 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 := setupCacheDB(db, startupQueries); err != nil {
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return nil, err
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}
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var queue *util.BatchingQueue[*message]
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if batchSize > 0 || batchTimeout > 0 {
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queue = util.NewBatchingQueue[*message](batchSize, batchTimeout)
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}
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cache := &messageCache{
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db: db,
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queue: queue,
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nop: nop,
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}
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go cache.processMessageBatches()
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return cache, nil
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}
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// newMemCache creates an in-memory cache
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func newMemCache() (*messageCache, error) {
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return newSqliteCache(createMemoryFilename(), "", 0, 0, false)
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}
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// newNopCache creates an in-memory cache that discards all messages;
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// it is always empty and can be used if caching is entirely disabled
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func newNopCache() (*messageCache, error) {
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return newSqliteCache(createMemoryFilename(), "", 0, 0, true)
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}
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// createMemoryFilename creates a unique memory filename to use for the SQLite backend.
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// From mattn/go-sqlite3: "Each connection to ":memory:" opens a brand new in-memory
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// sql database, so if the stdlib's sql engine happens to open another connection and
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// you've only specified ":memory:", that connection will see a brand new database.
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// A workaround is to use "file::memory:?cache=shared" (or "file:foobar?mode=memory&cache=shared").
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// Every connection to this string will point to the same in-memory database."
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func createMemoryFilename() string {
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return fmt.Sprintf("file:%s?mode=memory&cache=shared", util.RandomString(10))
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}
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// AddMessage stores a message to the message cache synchronously, or queues it to be stored at a later date asyncronously.
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// The message is queued only if "batchSize" or "batchTimeout" are passed to the constructor.
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func (c *messageCache) AddMessage(m *message) error {
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if c.queue != nil {
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c.queue.Enqueue(m)
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return nil
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}
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return c.addMessages([]*message{m})
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}
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// addMessages synchronously stores a match of messages. If the database is locked, the transaction waits until
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// SQLite's busy_timeout is exceeded before erroring out.
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func (c *messageCache) addMessages(ms []*message) error {
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if c.nop {
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return nil
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}
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start := time.Now()
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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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for _, m := range ms {
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if m.Event != messageEvent {
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return errUnexpectedMessageType
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}
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published := m.Time <= time.Now().Unix()
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tags := strings.Join(m.Tags, ",")
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var attachmentName, attachmentType, attachmentURL string
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var attachmentSize, attachmentExpires int64
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if m.Attachment != nil {
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attachmentName = m.Attachment.Name
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attachmentType = m.Attachment.Type
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attachmentSize = m.Attachment.Size
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attachmentExpires = m.Attachment.Expires
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attachmentURL = m.Attachment.URL
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}
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var actionsStr string
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if len(m.Actions) > 0 {
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actionsBytes, err := json.Marshal(m.Actions)
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if err != nil {
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return err
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}
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actionsStr = string(actionsBytes)
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}
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var sender string
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if m.Sender.IsValid() {
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sender = m.Sender.String()
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}
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_, err := tx.Exec(
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insertMessageQuery,
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m.ID,
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m.Time,
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m.Topic,
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m.Message,
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m.Title,
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m.Priority,
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tags,
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m.Click,
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m.Icon,
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actionsStr,
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attachmentName,
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attachmentType,
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attachmentSize,
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attachmentExpires,
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attachmentURL,
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sender,
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m.Encoding,
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published,
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)
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if err != nil {
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return err
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}
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}
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if err := tx.Commit(); err != nil {
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log.Error("Cache: Writing %d message(s) failed (took %v)", len(ms), time.Since(start))
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return err
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}
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log.Debug("Cache: Wrote %d message(s) in %v", len(ms), time.Since(start))
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return nil
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}
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func (c *messageCache) Messages(topic string, since sinceMarker, scheduled bool) ([]*message, error) {
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if since.IsNone() {
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return make([]*message, 0), nil
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} else if since.IsID() {
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return c.messagesSinceID(topic, since, scheduled)
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}
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return c.messagesSinceTime(topic, since, scheduled)
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}
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func (c *messageCache) messagesSinceTime(topic string, since sinceMarker, scheduled bool) ([]*message, error) {
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var rows *sql.Rows
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var err error
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if scheduled {
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rows, err = c.db.Query(selectMessagesSinceTimeIncludeScheduledQuery, topic, since.Time().Unix())
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} else {
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rows, err = c.db.Query(selectMessagesSinceTimeQuery, topic, since.Time().Unix())
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}
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if err != nil {
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return nil, err
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}
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return readMessages(rows)
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}
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func (c *messageCache) messagesSinceID(topic string, since sinceMarker, scheduled bool) ([]*message, error) {
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idrows, err := c.db.Query(selectRowIDFromMessageID, since.ID())
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if err != nil {
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return nil, err
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}
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defer idrows.Close()
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if !idrows.Next() {
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return c.messagesSinceTime(topic, sinceAllMessages, scheduled)
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}
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var rowID int64
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if err := idrows.Scan(&rowID); err != nil {
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return nil, err
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}
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idrows.Close()
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var rows *sql.Rows
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if scheduled {
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rows, err = c.db.Query(selectMessagesSinceIDIncludeScheduledQuery, topic, rowID)
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} else {
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rows, err = c.db.Query(selectMessagesSinceIDQuery, topic, rowID)
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}
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if err != nil {
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return nil, err
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}
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return readMessages(rows)
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}
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func (c *messageCache) MessagesDue() ([]*message, error) {
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rows, err := c.db.Query(selectMessagesDueQuery, time.Now().Unix())
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if err != nil {
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return nil, err
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}
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return readMessages(rows)
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}
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func (c *messageCache) MarkPublished(m *message) error {
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_, err := c.db.Exec(updateMessagePublishedQuery, m.ID)
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return err
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}
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func (c *messageCache) MessageCounts() (map[string]int, error) {
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rows, err := c.db.Query(selectMessageCountPerTopicQuery)
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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 topic string
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var count int
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counts := make(map[string]int)
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for rows.Next() {
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if err := rows.Scan(&topic, &count); err != nil {
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return nil, err
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} else if err := rows.Err(); err != nil {
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return nil, err
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}
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counts[topic] = count
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}
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return counts, nil
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}
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func (c *messageCache) Topics() (map[string]*topic, error) {
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rows, err := c.db.Query(selectTopicsQuery)
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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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topics := make(map[string]*topic)
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for rows.Next() {
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var id string
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if err := rows.Scan(&id); err != nil {
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return nil, err
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}
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topics[id] = newTopic(id)
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}
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if err := rows.Err(); err != nil {
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return nil, err
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}
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return topics, nil
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}
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func (c *messageCache) Prune(olderThan time.Time) error {
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start := time.Now()
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if _, err := c.db.Exec(pruneMessagesQuery, olderThan.Unix()); err != nil {
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log.Warn("Cache: Pruning failed (after %v): %s", time.Since(start), err.Error())
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}
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log.Debug("Cache: Pruning successful (took %v)", time.Since(start))
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return nil
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}
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func (c *messageCache) AttachmentBytesUsed(sender string) (int64, error) {
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rows, err := c.db.Query(selectAttachmentsSizeQuery, sender, time.Now().Unix())
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if err != nil {
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return 0, err
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}
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defer rows.Close()
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var size int64
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if !rows.Next() {
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return 0, errors.New("no rows found")
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}
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if err := rows.Scan(&size); err != nil {
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return 0, err
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} else if err := rows.Err(); err != nil {
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return 0, err
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}
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return size, nil
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}
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func (c *messageCache) processMessageBatches() {
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if c.queue == nil {
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return
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}
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for messages := range c.queue.Dequeue() {
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if err := c.addMessages(messages); err != nil {
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log.Error("Cache: %s", err.Error())
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}
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}
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}
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func readMessages(rows *sql.Rows) ([]*message, error) {
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defer rows.Close()
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messages := make([]*message, 0)
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for rows.Next() {
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var timestamp, attachmentSize, attachmentExpires int64
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var priority int
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var id, topic, msg, title, tagsStr, click, icon, actionsStr, attachmentName, attachmentType, attachmentURL, sender, encoding string
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err := rows.Scan(
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&id,
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×tamp,
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&topic,
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&msg,
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&title,
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&priority,
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&tagsStr,
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&click,
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&icon,
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&actionsStr,
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&attachmentName,
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&attachmentType,
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&attachmentSize,
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&attachmentExpires,
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&attachmentURL,
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&sender,
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&encoding,
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)
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if err != nil {
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return nil, err
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}
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var tags []string
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if tagsStr != "" {
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tags = strings.Split(tagsStr, ",")
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}
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var actions []*action
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if actionsStr != "" {
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if err := json.Unmarshal([]byte(actionsStr), &actions); err != nil {
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return nil, err
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}
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}
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senderIP, err := netip.ParseAddr(sender)
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if err != nil {
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senderIP = netip.Addr{} // if no IP stored in database, return invalid address
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}
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var att *attachment
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if attachmentName != "" && attachmentURL != "" {
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att = &attachment{
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Name: attachmentName,
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Type: attachmentType,
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Size: attachmentSize,
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Expires: attachmentExpires,
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URL: attachmentURL,
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}
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}
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messages = append(messages, &message{
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ID: id,
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Time: timestamp,
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Event: messageEvent,
|
|
Topic: topic,
|
|
Message: msg,
|
|
Title: title,
|
|
Priority: priority,
|
|
Tags: tags,
|
|
Click: click,
|
|
Icon: icon,
|
|
Actions: actions,
|
|
Attachment: att,
|
|
Sender: senderIP, // Must parse assuming database must be correct
|
|
Encoding: encoding,
|
|
})
|
|
}
|
|
if err := rows.Err(); err != nil {
|
|
return nil, err
|
|
}
|
|
return messages, nil
|
|
}
|
|
|
|
func setupCacheDB(db *sql.DB, startupQueries string) error {
|
|
// Run startup queries
|
|
if startupQueries != "" {
|
|
if _, err := db.Exec(startupQueries); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
// If 'messages' table does not exist, this must be a new database
|
|
rowsMC, err := db.Query(selectMessagesCountQuery)
|
|
if err != nil {
|
|
return setupNewCacheDB(db)
|
|
}
|
|
rowsMC.Close()
|
|
|
|
// If 'messages' table exists, check 'schemaVersion' table
|
|
schemaVersion := 0
|
|
rowsSV, err := db.Query(selectSchemaVersionQuery)
|
|
if err == nil {
|
|
defer rowsSV.Close()
|
|
if !rowsSV.Next() {
|
|
return errors.New("cannot determine schema version: cache file may be corrupt")
|
|
}
|
|
if err := rowsSV.Scan(&schemaVersion); err != nil {
|
|
return err
|
|
}
|
|
rowsSV.Close()
|
|
}
|
|
|
|
// Do migrations
|
|
if schemaVersion == currentSchemaVersion {
|
|
return nil
|
|
} else if schemaVersion == 0 {
|
|
return migrateFrom0(db)
|
|
} else if schemaVersion == 1 {
|
|
return migrateFrom1(db)
|
|
} else if schemaVersion == 2 {
|
|
return migrateFrom2(db)
|
|
} else if schemaVersion == 3 {
|
|
return migrateFrom3(db)
|
|
} else if schemaVersion == 4 {
|
|
return migrateFrom4(db)
|
|
} else if schemaVersion == 5 {
|
|
return migrateFrom5(db)
|
|
} else if schemaVersion == 6 {
|
|
return migrateFrom6(db)
|
|
} else if schemaVersion == 7 {
|
|
return migrateFrom7(db)
|
|
} else if schemaVersion == 8 {
|
|
return migrateFrom8(db)
|
|
}
|
|
return fmt.Errorf("unexpected schema version found: %d", schemaVersion)
|
|
}
|
|
|
|
func setupNewCacheDB(db *sql.DB) error {
|
|
if _, err := db.Exec(createMessagesTableQuery); err != nil {
|
|
return err
|
|
}
|
|
if _, err := db.Exec(createSchemaVersionTableQuery); err != nil {
|
|
return err
|
|
}
|
|
if _, err := db.Exec(insertSchemaVersion, currentSchemaVersion); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func migrateFrom0(db *sql.DB) error {
|
|
log.Info("Migrating cache database schema: from 0 to 1")
|
|
if _, err := db.Exec(migrate0To1AlterMessagesTableQuery); err != nil {
|
|
return err
|
|
}
|
|
if _, err := db.Exec(createSchemaVersionTableQuery); err != nil {
|
|
return err
|
|
}
|
|
if _, err := db.Exec(insertSchemaVersion, 1); err != nil {
|
|
return err
|
|
}
|
|
return migrateFrom1(db)
|
|
}
|
|
|
|
func migrateFrom1(db *sql.DB) error {
|
|
log.Info("Migrating cache database schema: from 1 to 2")
|
|
if _, err := db.Exec(migrate1To2AlterMessagesTableQuery); err != nil {
|
|
return err
|
|
}
|
|
if _, err := db.Exec(updateSchemaVersion, 2); err != nil {
|
|
return err
|
|
}
|
|
return migrateFrom2(db)
|
|
}
|
|
|
|
func migrateFrom2(db *sql.DB) error {
|
|
log.Info("Migrating cache database schema: from 2 to 3")
|
|
if _, err := db.Exec(migrate2To3AlterMessagesTableQuery); err != nil {
|
|
return err
|
|
}
|
|
if _, err := db.Exec(updateSchemaVersion, 3); err != nil {
|
|
return err
|
|
}
|
|
return migrateFrom3(db)
|
|
}
|
|
|
|
func migrateFrom3(db *sql.DB) error {
|
|
log.Info("Migrating cache database schema: from 3 to 4")
|
|
if _, err := db.Exec(migrate3To4AlterMessagesTableQuery); err != nil {
|
|
return err
|
|
}
|
|
if _, err := db.Exec(updateSchemaVersion, 4); err != nil {
|
|
return err
|
|
}
|
|
return migrateFrom4(db)
|
|
}
|
|
|
|
func migrateFrom4(db *sql.DB) error {
|
|
log.Info("Migrating cache database schema: from 4 to 5")
|
|
if _, err := db.Exec(migrate4To5AlterMessagesTableQuery); err != nil {
|
|
return err
|
|
}
|
|
if _, err := db.Exec(updateSchemaVersion, 5); err != nil {
|
|
return err
|
|
}
|
|
return migrateFrom5(db)
|
|
}
|
|
|
|
func migrateFrom5(db *sql.DB) error {
|
|
log.Info("Migrating cache database schema: from 5 to 6")
|
|
if _, err := db.Exec(migrate5To6AlterMessagesTableQuery); err != nil {
|
|
return err
|
|
}
|
|
if _, err := db.Exec(updateSchemaVersion, 6); err != nil {
|
|
return err
|
|
}
|
|
return migrateFrom6(db)
|
|
}
|
|
|
|
func migrateFrom6(db *sql.DB) error {
|
|
log.Info("Migrating cache database schema: from 6 to 7")
|
|
if _, err := db.Exec(migrate6To7AlterMessagesTableQuery); err != nil {
|
|
return err
|
|
}
|
|
if _, err := db.Exec(updateSchemaVersion, 7); err != nil {
|
|
return err
|
|
}
|
|
return migrateFrom7(db)
|
|
}
|
|
|
|
func migrateFrom7(db *sql.DB) error {
|
|
log.Info("Migrating cache database schema: from 7 to 8")
|
|
if _, err := db.Exec(migrate7To8AlterMessagesTableQuery); err != nil {
|
|
return err
|
|
}
|
|
if _, err := db.Exec(updateSchemaVersion, 8); err != nil {
|
|
return err
|
|
}
|
|
return migrateFrom8(db)
|
|
}
|
|
|
|
func migrateFrom8(db *sql.DB) error {
|
|
log.Info("Migrating cache database schema: from 8 to 9")
|
|
if _, err := db.Exec(migrate8To9AlterMessagesTableQuery); err != nil {
|
|
return err
|
|
}
|
|
if _, err := db.Exec(updateSchemaVersion, 9); err != nil {
|
|
return err
|
|
}
|
|
return nil // Update this when a new version is added
|
|
}
|