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Combine tests and all that

This commit is contained in:
Philipp Heckel 2022-02-27 14:21:34 -05:00
parent 6dc4e441e4
commit c21737d546
6 changed files with 611 additions and 639 deletions

View file

@ -1,8 +1,13 @@
package server
import (
"database/sql"
"errors"
"fmt"
_ "github.com/mattn/go-sqlite3" // SQLite driver
"heckel.io/ntfy/util"
"log"
"strings"
"time"
)
@ -10,16 +15,551 @@ var (
errUnexpectedMessageType = errors.New("unexpected message type")
)
// cache implements a cache for messages of type "message" events,
// i.e. message structs with the Event messageEvent.
type cache interface {
AddMessage(m *message) error
Messages(topic string, since sinceMarker, scheduled bool) ([]*message, error)
MessagesDue() ([]*message, error)
MessageCount(topic string) (int, error)
Topics() (map[string]*topic, error)
Prune(olderThan time.Time) error
MarkPublished(m *message) error
AttachmentsSize(owner string) (int64, error)
AttachmentsExpired() ([]string, error)
// Messages cache
const (
createMessagesTableQuery = `
BEGIN;
CREATE TABLE IF NOT EXISTS messages (
id INTEGER PRIMARY KEY AUTOINCREMENT,
mid TEXT NOT NULL,
time INT NOT NULL,
topic TEXT NOT NULL,
message TEXT NOT NULL,
title TEXT NOT NULL,
priority INT NOT NULL,
tags TEXT NOT NULL,
click TEXT NOT NULL,
attachment_name TEXT NOT NULL,
attachment_type TEXT NOT NULL,
attachment_size INT NOT NULL,
attachment_expires INT NOT NULL,
attachment_url TEXT NOT NULL,
attachment_owner TEXT NOT NULL,
encoding TEXT NOT NULL,
published INT NOT NULL
);
CREATE INDEX IF NOT EXISTS idx_mid ON messages (mid);
CREATE INDEX IF NOT EXISTS idx_topic ON messages (topic);
COMMIT;
`
insertMessageQuery = `
INSERT INTO messages (mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding, published)
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
`
pruneMessagesQuery = `DELETE FROM messages WHERE time < ? AND published = 1`
selectRowIDFromMessageID = `SELECT id FROM messages WHERE topic = ? AND mid = ?`
selectMessagesSinceTimeQuery = `
SELECT mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
FROM messages
WHERE topic = ? AND time >= ? AND published = 1
ORDER BY time, id
`
selectMessagesSinceTimeIncludeScheduledQuery = `
SELECT mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
FROM messages
WHERE topic = ? AND time >= ?
ORDER BY time, id
`
selectMessagesSinceIDQuery = `
SELECT mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
FROM messages
WHERE topic = ? AND id > ? AND published = 1
ORDER BY time, id
`
selectMessagesSinceIDIncludeScheduledQuery = `
SELECT mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
FROM messages
WHERE topic = ? AND (id > ? OR published = 0)
ORDER BY time, id
`
selectMessagesDueQuery = `
SELECT mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
FROM messages
WHERE time <= ? AND published = 0
ORDER BY time, id
`
updateMessagePublishedQuery = `UPDATE messages SET published = 1 WHERE mid = ?`
selectMessagesCountQuery = `SELECT COUNT(*) FROM messages`
selectMessageCountForTopicQuery = `SELECT COUNT(*) FROM messages WHERE topic = ?`
selectTopicsQuery = `SELECT topic FROM messages GROUP BY topic`
selectAttachmentsSizeQuery = `SELECT IFNULL(SUM(attachment_size), 0) FROM messages WHERE attachment_owner = ? AND attachment_expires >= ?`
selectAttachmentsExpiredQuery = `SELECT mid FROM messages WHERE attachment_expires > 0 AND attachment_expires < ?`
)
// Schema management queries
const (
currentSchemaVersion = 5
createSchemaVersionTableQuery = `
CREATE TABLE IF NOT EXISTS schemaVersion (
id INT PRIMARY KEY,
version INT NOT NULL
);
`
insertSchemaVersion = `INSERT INTO schemaVersion VALUES (1, ?)`
updateSchemaVersion = `UPDATE schemaVersion SET version = ? WHERE id = 1`
selectSchemaVersionQuery = `SELECT version FROM schemaVersion WHERE id = 1`
// 0 -> 1
migrate0To1AlterMessagesTableQuery = `
BEGIN;
ALTER TABLE messages ADD COLUMN title TEXT NOT NULL DEFAULT('');
ALTER TABLE messages ADD COLUMN priority INT NOT NULL DEFAULT(0);
ALTER TABLE messages ADD COLUMN tags TEXT NOT NULL DEFAULT('');
COMMIT;
`
// 1 -> 2
migrate1To2AlterMessagesTableQuery = `
ALTER TABLE messages ADD COLUMN published INT NOT NULL DEFAULT(1);
`
// 2 -> 3
migrate2To3AlterMessagesTableQuery = `
BEGIN;
ALTER TABLE messages ADD COLUMN click TEXT NOT NULL DEFAULT('');
ALTER TABLE messages ADD COLUMN attachment_name TEXT NOT NULL DEFAULT('');
ALTER TABLE messages ADD COLUMN attachment_type TEXT NOT NULL DEFAULT('');
ALTER TABLE messages ADD COLUMN attachment_size INT NOT NULL DEFAULT('0');
ALTER TABLE messages ADD COLUMN attachment_expires INT NOT NULL DEFAULT('0');
ALTER TABLE messages ADD COLUMN attachment_owner TEXT NOT NULL DEFAULT('');
ALTER TABLE messages ADD COLUMN attachment_url TEXT NOT NULL DEFAULT('');
COMMIT;
`
// 3 -> 4
migrate3To4AlterMessagesTableQuery = `
ALTER TABLE messages ADD COLUMN encoding TEXT NOT NULL DEFAULT('');
`
// 4 -> 5
migrate4To5AlterMessagesTableQuery = `
BEGIN;
CREATE TABLE IF NOT EXISTS messages_new (
id INTEGER PRIMARY KEY AUTOINCREMENT,
mid TEXT NOT NULL,
time INT NOT NULL,
topic TEXT NOT NULL,
message TEXT NOT NULL,
title TEXT NOT NULL,
priority INT NOT NULL,
tags TEXT NOT NULL,
click TEXT NOT NULL,
attachment_name TEXT NOT NULL,
attachment_type TEXT NOT NULL,
attachment_size INT NOT NULL,
attachment_expires INT NOT NULL,
attachment_url TEXT NOT NULL,
attachment_owner TEXT NOT NULL,
encoding TEXT NOT NULL,
published INT NOT NULL
);
CREATE INDEX IF NOT EXISTS idx_mid ON messages_new (mid);
CREATE INDEX IF NOT EXISTS idx_topic ON messages_new (topic);
INSERT
INTO messages_new (
mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type,
attachment_size, attachment_expires, attachment_url, attachment_owner, encoding, published)
SELECT
id, time, topic, message, title, priority, tags, click, attachment_name, attachment_type,
attachment_size, attachment_expires, attachment_url, attachment_owner, encoding, published
FROM messages;
DROP TABLE messages;
ALTER TABLE messages_new RENAME TO messages;
COMMIT;
`
)
type sqliteCache struct {
db *sql.DB
nop bool
}
func newSqliteCache(filename string, nop bool) (*sqliteCache, error) {
db, err := sql.Open("sqlite3", filename)
if err != nil {
return nil, err
}
if err := setupCacheDB(db); err != nil {
return nil, err
}
return &sqliteCache{
db: db,
nop: nop,
}, nil
}
// newMemCache creates an in-memory cache
func newMemCache() (*sqliteCache, error) {
return newSqliteCache(createMemoryFilename(), false)
}
// newNopCache creates an in-memory cache that discards all messages;
// it is always empty and can be used if caching is entirely disabled
func newNopCache() (*sqliteCache, error) {
return newSqliteCache(createMemoryFilename(), true)
}
// createMemoryFilename creates a unique memory filename to use for the SQLite backend.
// From mattn/go-sqlite3: "Each connection to ":memory:" opens a brand new in-memory
// sql database, so if the stdlib's sql engine happens to open another connection and
// you've only specified ":memory:", that connection will see a brand new database.
// A workaround is to use "file::memory:?cache=shared" (or "file:foobar?mode=memory&cache=shared").
// Every connection to this string will point to the same in-memory database."
func createMemoryFilename() string {
return fmt.Sprintf("file:%s?mode=memory&cache=shared", util.RandomString(10))
}
func (c *sqliteCache) AddMessage(m *message) error {
if m.Event != messageEvent {
return errUnexpectedMessageType
}
if c.nop {
return nil
}
published := m.Time <= time.Now().Unix()
tags := strings.Join(m.Tags, ",")
var attachmentName, attachmentType, attachmentURL, attachmentOwner string
var attachmentSize, attachmentExpires int64
if m.Attachment != nil {
attachmentName = m.Attachment.Name
attachmentType = m.Attachment.Type
attachmentSize = m.Attachment.Size
attachmentExpires = m.Attachment.Expires
attachmentURL = m.Attachment.URL
attachmentOwner = m.Attachment.Owner
}
_, err := c.db.Exec(
insertMessageQuery,
m.ID,
m.Time,
m.Topic,
m.Message,
m.Title,
m.Priority,
tags,
m.Click,
attachmentName,
attachmentType,
attachmentSize,
attachmentExpires,
attachmentURL,
attachmentOwner,
m.Encoding,
published,
)
return err
}
func (c *sqliteCache) Messages(topic string, since sinceMarker, scheduled bool) ([]*message, error) {
if since.IsNone() {
return make([]*message, 0), nil
} else if since.IsID() {
return c.messagesSinceID(topic, since, scheduled)
}
return c.messagesSinceTime(topic, since, scheduled)
}
func (c *sqliteCache) messagesSinceTime(topic string, since sinceMarker, scheduled bool) ([]*message, error) {
var rows *sql.Rows
var err error
if scheduled {
rows, err = c.db.Query(selectMessagesSinceTimeIncludeScheduledQuery, topic, since.Time().Unix())
} else {
rows, err = c.db.Query(selectMessagesSinceTimeQuery, topic, since.Time().Unix())
}
if err != nil {
return nil, err
}
return readMessages(rows)
}
func (c *sqliteCache) messagesSinceID(topic string, since sinceMarker, scheduled bool) ([]*message, error) {
idrows, err := c.db.Query(selectRowIDFromMessageID, topic, since.ID())
if err != nil {
return nil, err
}
defer idrows.Close()
if !idrows.Next() {
return c.messagesSinceTime(topic, sinceAllMessages, scheduled)
}
var rowID int64
if err := idrows.Scan(&rowID); err != nil {
return nil, err
}
idrows.Close()
var rows *sql.Rows
if scheduled {
rows, err = c.db.Query(selectMessagesSinceIDIncludeScheduledQuery, topic, rowID)
} else {
rows, err = c.db.Query(selectMessagesSinceIDQuery, topic, rowID)
}
if err != nil {
return nil, err
}
return readMessages(rows)
}
func (c *sqliteCache) MessagesDue() ([]*message, error) {
rows, err := c.db.Query(selectMessagesDueQuery, time.Now().Unix())
if err != nil {
return nil, err
}
return readMessages(rows)
}
func (c *sqliteCache) MarkPublished(m *message) error {
_, err := c.db.Exec(updateMessagePublishedQuery, m.ID)
return err
}
func (c *sqliteCache) MessageCount(topic string) (int, error) {
rows, err := c.db.Query(selectMessageCountForTopicQuery, topic)
if err != nil {
return 0, err
}
defer rows.Close()
var count int
if !rows.Next() {
return 0, errors.New("no rows found")
}
if err := rows.Scan(&count); err != nil {
return 0, err
} else if err := rows.Err(); err != nil {
return 0, err
}
return count, nil
}
func (c *sqliteCache) Topics() (map[string]*topic, error) {
rows, err := c.db.Query(selectTopicsQuery)
if err != nil {
return nil, err
}
defer rows.Close()
topics := make(map[string]*topic)
for rows.Next() {
var id string
if err := rows.Scan(&id); err != nil {
return nil, err
}
topics[id] = newTopic(id)
}
if err := rows.Err(); err != nil {
return nil, err
}
return topics, nil
}
func (c *sqliteCache) Prune(olderThan time.Time) error {
_, err := c.db.Exec(pruneMessagesQuery, olderThan.Unix())
return err
}
func (c *sqliteCache) AttachmentsSize(owner string) (int64, error) {
rows, err := c.db.Query(selectAttachmentsSizeQuery, owner, time.Now().Unix())
if err != nil {
return 0, err
}
defer rows.Close()
var size int64
if !rows.Next() {
return 0, errors.New("no rows found")
}
if err := rows.Scan(&size); err != nil {
return 0, err
} else if err := rows.Err(); err != nil {
return 0, err
}
return size, nil
}
func (c *sqliteCache) AttachmentsExpired() ([]string, error) {
rows, err := c.db.Query(selectAttachmentsExpiredQuery, time.Now().Unix())
if err != nil {
return nil, err
}
defer rows.Close()
ids := make([]string, 0)
for rows.Next() {
var id string
if err := rows.Scan(&id); err != nil {
return nil, err
}
ids = append(ids, id)
}
if err := rows.Err(); err != nil {
return nil, err
}
return ids, nil
}
func readMessages(rows *sql.Rows) ([]*message, error) {
defer rows.Close()
messages := make([]*message, 0)
for rows.Next() {
var timestamp, attachmentSize, attachmentExpires int64
var priority int
var id, topic, msg, title, tagsStr, click, attachmentName, attachmentType, attachmentURL, attachmentOwner, encoding string
err := rows.Scan(
&id,
&timestamp,
&topic,
&msg,
&title,
&priority,
&tagsStr,
&click,
&attachmentName,
&attachmentType,
&attachmentSize,
&attachmentExpires,
&attachmentURL,
&attachmentOwner,
&encoding,
)
if err != nil {
return nil, err
}
var tags []string
if tagsStr != "" {
tags = strings.Split(tagsStr, ",")
}
var att *attachment
if attachmentName != "" && attachmentURL != "" {
att = &attachment{
Name: attachmentName,
Type: attachmentType,
Size: attachmentSize,
Expires: attachmentExpires,
URL: attachmentURL,
Owner: attachmentOwner,
}
}
messages = append(messages, &message{
ID: id,
Time: timestamp,
Event: messageEvent,
Topic: topic,
Message: msg,
Title: title,
Priority: priority,
Tags: tags,
Click: click,
Attachment: att,
Encoding: encoding,
})
}
if err := rows.Err(); err != nil {
return nil, err
}
return messages, nil
}
func setupCacheDB(db *sql.DB) error {
// 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)
}
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.Print("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.Print("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.Print("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.Print("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.Print("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 nil // Update this when a new version is added
}

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@ -1,55 +0,0 @@
package server
import (
"github.com/stretchr/testify/assert"
"testing"
)
func TestMemCache_Messages(t *testing.T) {
testCacheMessages(t, newMemTestCache(t))
}
func TestMemCache_MessagesScheduled(t *testing.T) {
testCacheMessagesScheduled(t, newMemTestCache(t))
}
func TestMemCache_Topics(t *testing.T) {
testCacheTopics(t, newMemTestCache(t))
}
func TestMemCache_MessagesTagsPrioAndTitle(t *testing.T) {
testCacheMessagesTagsPrioAndTitle(t, newMemTestCache(t))
}
func TestMemCache_MessagesSinceID(t *testing.T) {
testCacheMessagesSinceID(t, newMemTestCache(t))
}
func TestMemCache_Prune(t *testing.T) {
testCachePrune(t, newMemTestCache(t))
}
func TestMemCache_Attachments(t *testing.T) {
testCacheAttachments(t, newMemTestCache(t))
}
func TestMemCache_NopCache(t *testing.T) {
c, _ := newNopCache()
assert.Nil(t, c.AddMessage(newDefaultMessage("mytopic", "my message")))
messages, err := c.Messages("mytopic", sinceAllMessages, false)
assert.Nil(t, err)
assert.Empty(t, messages)
topics, err := c.Topics()
assert.Nil(t, err)
assert.Empty(t, topics)
}
func newMemTestCache(t *testing.T) cache {
c, err := newMemCache()
if err != nil {
t.Fatal(err)
}
return c
}

View file

@ -1,563 +0,0 @@
package server
import (
"database/sql"
"errors"
"fmt"
_ "github.com/mattn/go-sqlite3" // SQLite driver
"heckel.io/ntfy/util"
"log"
"strings"
"time"
)
// Messages cache
const (
createMessagesTableQuery = `
BEGIN;
CREATE TABLE IF NOT EXISTS messages (
id INTEGER PRIMARY KEY AUTOINCREMENT,
mid TEXT NOT NULL,
time INT NOT NULL,
topic TEXT NOT NULL,
message TEXT NOT NULL,
title TEXT NOT NULL,
priority INT NOT NULL,
tags TEXT NOT NULL,
click TEXT NOT NULL,
attachment_name TEXT NOT NULL,
attachment_type TEXT NOT NULL,
attachment_size INT NOT NULL,
attachment_expires INT NOT NULL,
attachment_url TEXT NOT NULL,
attachment_owner TEXT NOT NULL,
encoding TEXT NOT NULL,
published INT NOT NULL
);
CREATE INDEX IF NOT EXISTS idx_mid ON messages (mid);
CREATE INDEX IF NOT EXISTS idx_topic ON messages (topic);
COMMIT;
`
insertMessageQuery = `
INSERT INTO messages (mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding, published)
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
`
pruneMessagesQuery = `DELETE FROM messages WHERE time < ? AND published = 1`
selectRowIDFromMessageID = `SELECT id FROM messages WHERE topic = ? AND mid = ?`
selectMessagesSinceTimeQuery = `
SELECT mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
FROM messages
WHERE topic = ? AND time >= ? AND published = 1
ORDER BY time, id
`
selectMessagesSinceTimeIncludeScheduledQuery = `
SELECT mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
FROM messages
WHERE topic = ? AND time >= ?
ORDER BY time, id
`
selectMessagesSinceIDQuery = `
SELECT mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
FROM messages
WHERE topic = ? AND id > ? AND published = 1
ORDER BY time, id
`
selectMessagesSinceIDIncludeScheduledQuery = `
SELECT mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
FROM messages
WHERE topic = ? AND (id > ? OR published = 0)
ORDER BY time, id
`
selectMessagesDueQuery = `
SELECT mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
FROM messages
WHERE time <= ? AND published = 0
ORDER BY time, id
`
updateMessagePublishedQuery = `UPDATE messages SET published = 1 WHERE mid = ?`
selectMessagesCountQuery = `SELECT COUNT(*) FROM messages`
selectMessageCountForTopicQuery = `SELECT COUNT(*) FROM messages WHERE topic = ?`
selectTopicsQuery = `SELECT topic FROM messages GROUP BY topic`
selectAttachmentsSizeQuery = `SELECT IFNULL(SUM(attachment_size), 0) FROM messages WHERE attachment_owner = ? AND attachment_expires >= ?`
selectAttachmentsExpiredQuery = `SELECT mid FROM messages WHERE attachment_expires > 0 AND attachment_expires < ?`
)
// Schema management queries
const (
currentSchemaVersion = 5
createSchemaVersionTableQuery = `
CREATE TABLE IF NOT EXISTS schemaVersion (
id INT PRIMARY KEY,
version INT NOT NULL
);
`
insertSchemaVersion = `INSERT INTO schemaVersion VALUES (1, ?)`
updateSchemaVersion = `UPDATE schemaVersion SET version = ? WHERE id = 1`
selectSchemaVersionQuery = `SELECT version FROM schemaVersion WHERE id = 1`
// 0 -> 1
migrate0To1AlterMessagesTableQuery = `
BEGIN;
ALTER TABLE messages ADD COLUMN title TEXT NOT NULL DEFAULT('');
ALTER TABLE messages ADD COLUMN priority INT NOT NULL DEFAULT(0);
ALTER TABLE messages ADD COLUMN tags TEXT NOT NULL DEFAULT('');
COMMIT;
`
// 1 -> 2
migrate1To2AlterMessagesTableQuery = `
ALTER TABLE messages ADD COLUMN published INT NOT NULL DEFAULT(1);
`
// 2 -> 3
migrate2To3AlterMessagesTableQuery = `
BEGIN;
ALTER TABLE messages ADD COLUMN click TEXT NOT NULL DEFAULT('');
ALTER TABLE messages ADD COLUMN attachment_name TEXT NOT NULL DEFAULT('');
ALTER TABLE messages ADD COLUMN attachment_type TEXT NOT NULL DEFAULT('');
ALTER TABLE messages ADD COLUMN attachment_size INT NOT NULL DEFAULT('0');
ALTER TABLE messages ADD COLUMN attachment_expires INT NOT NULL DEFAULT('0');
ALTER TABLE messages ADD COLUMN attachment_owner TEXT NOT NULL DEFAULT('');
ALTER TABLE messages ADD COLUMN attachment_url TEXT NOT NULL DEFAULT('');
COMMIT;
`
// 3 -> 4
migrate3To4AlterMessagesTableQuery = `
ALTER TABLE messages ADD COLUMN encoding TEXT NOT NULL DEFAULT('');
`
// 4 -> 5
migrate4To5AlterMessagesTableQuery = `
BEGIN;
CREATE TABLE IF NOT EXISTS messages_new (
id INTEGER PRIMARY KEY AUTOINCREMENT,
mid TEXT NOT NULL,
time INT NOT NULL,
topic TEXT NOT NULL,
message TEXT NOT NULL,
title TEXT NOT NULL,
priority INT NOT NULL,
tags TEXT NOT NULL,
click TEXT NOT NULL,
attachment_name TEXT NOT NULL,
attachment_type TEXT NOT NULL,
attachment_size INT NOT NULL,
attachment_expires INT NOT NULL,
attachment_url TEXT NOT NULL,
attachment_owner TEXT NOT NULL,
encoding TEXT NOT NULL,
published INT NOT NULL
);
CREATE INDEX IF NOT EXISTS idx_mid ON messages_new (mid);
CREATE INDEX IF NOT EXISTS idx_topic ON messages_new (topic);
INSERT
INTO messages_new (
mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type,
attachment_size, attachment_expires, attachment_url, attachment_owner, encoding, published)
SELECT
id, time, topic, message, title, priority, tags, click, attachment_name, attachment_type,
attachment_size, attachment_expires, attachment_url, attachment_owner, encoding, published
FROM messages;
DROP TABLE messages;
ALTER TABLE messages_new RENAME TO messages;
COMMIT;
`
)
type sqliteCache struct {
db *sql.DB
nop bool
}
var _ cache = (*sqliteCache)(nil)
func newSqliteCache(filename string, nop bool) (*sqliteCache, error) {
db, err := sql.Open("sqlite3", filename)
if err != nil {
return nil, err
}
if err := setupCacheDB(db); err != nil {
return nil, err
}
return &sqliteCache{
db: db,
nop: nop,
}, nil
}
// newMemCache creates an in-memory cache
func newMemCache() (*sqliteCache, error) {
return newSqliteCache(createMemoryFilename(), false)
}
// newNopCache creates an in-memory cache that discards all messages;
// it is always empty and can be used if caching is entirely disabled
func newNopCache() (*sqliteCache, error) {
return newSqliteCache(createMemoryFilename(), true)
}
// createMemoryFilename creates a unique memory filename to use for the SQLite backend.
// From mattn/go-sqlite3: "Each connection to ":memory:" opens a brand new in-memory
// sql database, so if the stdlib's sql engine happens to open another connection and
// you've only specified ":memory:", that connection will see a brand new database.
// A workaround is to use "file::memory:?cache=shared" (or "file:foobar?mode=memory&cache=shared").
// Every connection to this string will point to the same in-memory database."
func createMemoryFilename() string {
return fmt.Sprintf("file:%s?mode=memory&cache=shared", util.RandomString(10))
}
func (c *sqliteCache) AddMessage(m *message) error {
if m.Event != messageEvent {
return errUnexpectedMessageType
}
if c.nop {
return nil
}
published := m.Time <= time.Now().Unix()
tags := strings.Join(m.Tags, ",")
var attachmentName, attachmentType, attachmentURL, attachmentOwner string
var attachmentSize, attachmentExpires int64
if m.Attachment != nil {
attachmentName = m.Attachment.Name
attachmentType = m.Attachment.Type
attachmentSize = m.Attachment.Size
attachmentExpires = m.Attachment.Expires
attachmentURL = m.Attachment.URL
attachmentOwner = m.Attachment.Owner
}
_, err := c.db.Exec(
insertMessageQuery,
m.ID,
m.Time,
m.Topic,
m.Message,
m.Title,
m.Priority,
tags,
m.Click,
attachmentName,
attachmentType,
attachmentSize,
attachmentExpires,
attachmentURL,
attachmentOwner,
m.Encoding,
published,
)
return err
}
func (c *sqliteCache) Messages(topic string, since sinceMarker, scheduled bool) ([]*message, error) {
if since.IsNone() {
return make([]*message, 0), nil
} else if since.IsID() {
return c.messagesSinceID(topic, since, scheduled)
}
return c.messagesSinceTime(topic, since, scheduled)
}
func (c *sqliteCache) messagesSinceTime(topic string, since sinceMarker, scheduled bool) ([]*message, error) {
var rows *sql.Rows
var err error
if scheduled {
rows, err = c.db.Query(selectMessagesSinceTimeIncludeScheduledQuery, topic, since.Time().Unix())
} else {
rows, err = c.db.Query(selectMessagesSinceTimeQuery, topic, since.Time().Unix())
}
if err != nil {
return nil, err
}
return readMessages(rows)
}
func (c *sqliteCache) messagesSinceID(topic string, since sinceMarker, scheduled bool) ([]*message, error) {
idrows, err := c.db.Query(selectRowIDFromMessageID, topic, since.ID())
if err != nil {
return nil, err
}
defer idrows.Close()
if !idrows.Next() {
return c.messagesSinceTime(topic, sinceAllMessages, scheduled)
}
var rowID int64
if err := idrows.Scan(&rowID); err != nil {
return nil, err
}
idrows.Close()
var rows *sql.Rows
if scheduled {
rows, err = c.db.Query(selectMessagesSinceIDIncludeScheduledQuery, topic, rowID)
} else {
rows, err = c.db.Query(selectMessagesSinceIDQuery, topic, rowID)
}
if err != nil {
return nil, err
}
return readMessages(rows)
}
func (c *sqliteCache) MessagesDue() ([]*message, error) {
rows, err := c.db.Query(selectMessagesDueQuery, time.Now().Unix())
if err != nil {
return nil, err
}
return readMessages(rows)
}
func (c *sqliteCache) MarkPublished(m *message) error {
_, err := c.db.Exec(updateMessagePublishedQuery, m.ID)
return err
}
func (c *sqliteCache) MessageCount(topic string) (int, error) {
rows, err := c.db.Query(selectMessageCountForTopicQuery, topic)
if err != nil {
return 0, err
}
defer rows.Close()
var count int
if !rows.Next() {
return 0, errors.New("no rows found")
}
if err := rows.Scan(&count); err != nil {
return 0, err
} else if err := rows.Err(); err != nil {
return 0, err
}
return count, nil
}
func (c *sqliteCache) Topics() (map[string]*topic, error) {
rows, err := c.db.Query(selectTopicsQuery)
if err != nil {
return nil, err
}
defer rows.Close()
topics := make(map[string]*topic)
for rows.Next() {
var id string
if err := rows.Scan(&id); err != nil {
return nil, err
}
topics[id] = newTopic(id)
}
if err := rows.Err(); err != nil {
return nil, err
}
return topics, nil
}
func (c *sqliteCache) Prune(olderThan time.Time) error {
_, err := c.db.Exec(pruneMessagesQuery, olderThan.Unix())
return err
}
func (c *sqliteCache) AttachmentsSize(owner string) (int64, error) {
rows, err := c.db.Query(selectAttachmentsSizeQuery, owner, time.Now().Unix())
if err != nil {
return 0, err
}
defer rows.Close()
var size int64
if !rows.Next() {
return 0, errors.New("no rows found")
}
if err := rows.Scan(&size); err != nil {
return 0, err
} else if err := rows.Err(); err != nil {
return 0, err
}
return size, nil
}
func (c *sqliteCache) AttachmentsExpired() ([]string, error) {
rows, err := c.db.Query(selectAttachmentsExpiredQuery, time.Now().Unix())
if err != nil {
return nil, err
}
defer rows.Close()
ids := make([]string, 0)
for rows.Next() {
var id string
if err := rows.Scan(&id); err != nil {
return nil, err
}
ids = append(ids, id)
}
if err := rows.Err(); err != nil {
return nil, err
}
return ids, nil
}
func readMessages(rows *sql.Rows) ([]*message, error) {
defer rows.Close()
messages := make([]*message, 0)
for rows.Next() {
var timestamp, attachmentSize, attachmentExpires int64
var priority int
var id, topic, msg, title, tagsStr, click, attachmentName, attachmentType, attachmentURL, attachmentOwner, encoding string
err := rows.Scan(
&id,
&timestamp,
&topic,
&msg,
&title,
&priority,
&tagsStr,
&click,
&attachmentName,
&attachmentType,
&attachmentSize,
&attachmentExpires,
&attachmentURL,
&attachmentOwner,
&encoding,
)
if err != nil {
return nil, err
}
var tags []string
if tagsStr != "" {
tags = strings.Split(tagsStr, ",")
}
var att *attachment
if attachmentName != "" && attachmentURL != "" {
att = &attachment{
Name: attachmentName,
Type: attachmentType,
Size: attachmentSize,
Expires: attachmentExpires,
URL: attachmentURL,
Owner: attachmentOwner,
}
}
messages = append(messages, &message{
ID: id,
Time: timestamp,
Event: messageEvent,
Topic: topic,
Message: msg,
Title: title,
Priority: priority,
Tags: tags,
Click: click,
Attachment: att,
Encoding: encoding,
})
}
if err := rows.Err(); err != nil {
return nil, err
}
return messages, nil
}
func setupCacheDB(db *sql.DB) error {
// 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)
}
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.Print("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.Print("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.Print("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.Print("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.Print("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 nil // Update this when a new version is added
}

View file

@ -3,6 +3,7 @@ package server
import (
"database/sql"
"fmt"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"path/filepath"
"testing"
@ -13,30 +14,58 @@ func TestSqliteCache_Messages(t *testing.T) {
testCacheMessages(t, newSqliteTestCache(t))
}
func TestMemCache_Messages(t *testing.T) {
testCacheMessages(t, newMemTestCache(t))
}
func TestSqliteCache_MessagesScheduled(t *testing.T) {
testCacheMessagesScheduled(t, newSqliteTestCache(t))
}
func TestMemCache_MessagesScheduled(t *testing.T) {
testCacheMessagesScheduled(t, newMemTestCache(t))
}
func TestSqliteCache_Topics(t *testing.T) {
testCacheTopics(t, newSqliteTestCache(t))
}
func TestMemCache_Topics(t *testing.T) {
testCacheTopics(t, newMemTestCache(t))
}
func TestSqliteCache_MessagesTagsPrioAndTitle(t *testing.T) {
testCacheMessagesTagsPrioAndTitle(t, newSqliteTestCache(t))
}
func TestMemCache_MessagesTagsPrioAndTitle(t *testing.T) {
testCacheMessagesTagsPrioAndTitle(t, newMemTestCache(t))
}
func TestSqliteCache_MessagesSinceID(t *testing.T) {
testCacheMessagesSinceID(t, newSqliteTestCache(t))
}
func TestMemCache_MessagesSinceID(t *testing.T) {
testCacheMessagesSinceID(t, newMemTestCache(t))
}
func TestSqliteCache_Prune(t *testing.T) {
testCachePrune(t, newSqliteTestCache(t))
}
func TestMemCache_Prune(t *testing.T) {
testCachePrune(t, newMemTestCache(t))
}
func TestSqliteCache_Attachments(t *testing.T) {
testCacheAttachments(t, newSqliteTestCache(t))
}
func TestMemCache_Attachments(t *testing.T) {
testCacheAttachments(t, newMemTestCache(t))
}
func TestSqliteCache_Migration_From0(t *testing.T) {
filename := newSqliteTestCacheFile(t)
db, err := sql.Open("sqlite3", filename)
@ -141,6 +170,19 @@ func checkSchemaVersion(t *testing.T, db *sql.DB) {
require.Nil(t, rows.Close())
}
func TestMemCache_NopCache(t *testing.T) {
c, _ := newNopCache()
assert.Nil(t, c.AddMessage(newDefaultMessage("mytopic", "my message")))
messages, err := c.Messages("mytopic", sinceAllMessages, false)
assert.Nil(t, err)
assert.Empty(t, messages)
topics, err := c.Topics()
assert.Nil(t, err)
assert.Empty(t, topics)
}
func newSqliteTestCache(t *testing.T) *sqliteCache {
c, err := newSqliteCache(newSqliteTestCacheFile(t), false)
if err != nil {
@ -160,3 +202,11 @@ func newSqliteTestCacheFromFile(t *testing.T, filename string) *sqliteCache {
}
return c
}
func newMemTestCache(t *testing.T) *sqliteCache {
c, err := newMemCache()
if err != nil {
t.Fatal(err)
}
return c
}

View file

@ -6,7 +6,7 @@ import (
"time"
)
func testCacheMessages(t *testing.T, c cache) {
func testCacheMessages(t *testing.T, c *sqliteCache) {
m1 := newDefaultMessage("mytopic", "my message")
m1.Time = 1
@ -72,7 +72,7 @@ func testCacheMessages(t *testing.T, c cache) {
require.Empty(t, messages)
}
func testCacheTopics(t *testing.T, c cache) {
func testCacheTopics(t *testing.T, c *sqliteCache) {
require.Nil(t, c.AddMessage(newDefaultMessage("topic1", "my example message")))
require.Nil(t, c.AddMessage(newDefaultMessage("topic2", "message 1")))
require.Nil(t, c.AddMessage(newDefaultMessage("topic2", "message 2")))
@ -87,7 +87,7 @@ func testCacheTopics(t *testing.T, c cache) {
require.Equal(t, "topic2", topics["topic2"].ID)
}
func testCachePrune(t *testing.T, c cache) {
func testCachePrune(t *testing.T, c *sqliteCache) {
m1 := newDefaultMessage("mytopic", "my message")
m1.Time = 1
@ -116,7 +116,7 @@ func testCachePrune(t *testing.T, c cache) {
require.Equal(t, "my other message", messages[0].Message)
}
func testCacheMessagesTagsPrioAndTitle(t *testing.T, c cache) {
func testCacheMessagesTagsPrioAndTitle(t *testing.T, c *sqliteCache) {
m := newDefaultMessage("mytopic", "some message")
m.Tags = []string{"tag1", "tag2"}
m.Priority = 5
@ -129,7 +129,7 @@ func testCacheMessagesTagsPrioAndTitle(t *testing.T, c cache) {
require.Equal(t, "some title", messages[0].Title)
}
func testCacheMessagesScheduled(t *testing.T, c cache) {
func testCacheMessagesScheduled(t *testing.T, c *sqliteCache) {
m1 := newDefaultMessage("mytopic", "message 1")
m2 := newDefaultMessage("mytopic", "message 2")
m2.Time = time.Now().Add(time.Hour).Unix()
@ -155,7 +155,7 @@ func testCacheMessagesScheduled(t *testing.T, c cache) {
require.Empty(t, messages)
}
func testCacheMessagesSinceID(t *testing.T, c cache) {
func testCacheMessagesSinceID(t *testing.T, c *sqliteCache) {
m1 := newDefaultMessage("mytopic", "message 1")
m1.Time = 100
m2 := newDefaultMessage("mytopic", "message 2")
@ -220,7 +220,7 @@ func testCacheMessagesSinceID(t *testing.T, c cache) {
// TODO Add more delayed messages
}
func testCacheAttachments(t *testing.T, c cache) {
func testCacheAttachments(t *testing.T, c *sqliteCache) {
expires1 := time.Now().Add(-4 * time.Hour).Unix()
m := newDefaultMessage("mytopic", "flower for you")
m.ID = "m1"

View file

@ -45,7 +45,7 @@ type Server struct {
mailer mailer
messages int64
auth auth.Auther
cache cache
cache *sqliteCache
fileCache *fileCache
closeChan chan bool
mu sync.Mutex
@ -160,7 +160,7 @@ func New(conf *Config) (*Server, error) {
}, nil
}
func createCache(conf *Config) (cache, error) {
func createCache(conf *Config) (*sqliteCache, error) {
if conf.CacheDuration == 0 {
return newNopCache()
} else if conf.CacheFile != "" {