939c087754
This adds several fields to the channel database schema and struct. These fields will be used to add support for customizable message relaying through BouncerServ, auto-reattaching, auto-detaching. - RelayDetached is a filter for which notices to relay through BouncerServ for detached channels. - ReattachOn is a filter for which messages to trigger a channel reattach on. - DetachAfter is the duration after which to automatically detach a channel if no matching messages are received. - DetachOn is a filter for which messages will reset the auto-detach timer.
551 lines
14 KiB
Go
551 lines
14 KiB
Go
package soju
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import (
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"database/sql"
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"fmt"
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"math"
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"strings"
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"sync"
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"time"
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_ "github.com/mattn/go-sqlite3"
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)
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type User struct {
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ID int64
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Username string
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Password string // hashed
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Admin bool
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}
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type SASL struct {
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Mechanism string
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Plain struct {
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Username string
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Password string
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}
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// TLS client certificate authentication.
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External struct {
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// X.509 certificate in DER form.
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CertBlob []byte
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// PKCS#8 private key in DER form.
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PrivKeyBlob []byte
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}
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}
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type Network struct {
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ID int64
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Name string
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Addr string
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Nick string
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Username string
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Realname string
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Pass string
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ConnectCommands []string
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SASL SASL
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}
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func (net *Network) GetName() string {
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if net.Name != "" {
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return net.Name
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}
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return net.Addr
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}
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type MessageFilter int
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const (
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// TODO: use customizable user defaults for FilterDefault
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FilterDefault MessageFilter = iota
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FilterNone
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FilterHighlight
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FilterMessage
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)
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func parseFilter(filter string) (MessageFilter, error) {
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switch filter {
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case "default":
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return FilterDefault, nil
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case "none":
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return FilterNone, nil
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case "highlight":
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return FilterHighlight, nil
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case "message":
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return FilterMessage, nil
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}
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return 0, fmt.Errorf("unknown filter: %q", filter)
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}
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type Channel struct {
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ID int64
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Name string
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Key string
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Detached bool
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RelayDetached MessageFilter
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ReattachOn MessageFilter
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DetachAfter time.Duration
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DetachOn MessageFilter
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}
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const schema = `
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CREATE TABLE User (
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id INTEGER PRIMARY KEY,
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username VARCHAR(255) NOT NULL UNIQUE,
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password VARCHAR(255),
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admin INTEGER NOT NULL DEFAULT 0
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);
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CREATE TABLE Network (
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id INTEGER PRIMARY KEY,
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name VARCHAR(255),
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user INTEGER NOT NULL,
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addr VARCHAR(255) NOT NULL,
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nick VARCHAR(255) NOT NULL,
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username VARCHAR(255),
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realname VARCHAR(255),
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pass VARCHAR(255),
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connect_commands VARCHAR(1023),
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sasl_mechanism VARCHAR(255),
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sasl_plain_username VARCHAR(255),
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sasl_plain_password VARCHAR(255),
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sasl_external_cert BLOB DEFAULT NULL,
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sasl_external_key BLOB DEFAULT NULL,
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FOREIGN KEY(user) REFERENCES User(id),
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UNIQUE(user, addr, nick),
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UNIQUE(user, name)
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);
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CREATE TABLE Channel (
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id INTEGER PRIMARY KEY,
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network INTEGER NOT NULL,
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name VARCHAR(255) NOT NULL,
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key VARCHAR(255),
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detached INTEGER NOT NULL DEFAULT 0,
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relay_detached INTEGER NOT NULL DEFAULT 0,
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reattach_on INTEGER NOT NULL DEFAULT 0,
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detach_after INTEGER NOT NULL DEFAULT 0,
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detach_on INTEGER NOT NULL DEFAULT 0,
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FOREIGN KEY(network) REFERENCES Network(id),
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UNIQUE(network, name)
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);
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`
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var migrations = []string{
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"", // migration #0 is reserved for schema initialization
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"ALTER TABLE Network ADD COLUMN connect_commands VARCHAR(1023)",
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"ALTER TABLE Channel ADD COLUMN detached INTEGER NOT NULL DEFAULT 0",
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"ALTER TABLE Network ADD COLUMN sasl_external_cert BLOB DEFAULT NULL",
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"ALTER TABLE Network ADD COLUMN sasl_external_key BLOB DEFAULT NULL",
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"ALTER TABLE User ADD COLUMN admin INTEGER NOT NULL DEFAULT 0",
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`
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CREATE TABLE UserNew (
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id INTEGER PRIMARY KEY,
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username VARCHAR(255) NOT NULL UNIQUE,
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password VARCHAR(255),
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admin INTEGER NOT NULL DEFAULT 0
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);
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INSERT INTO UserNew SELECT rowid, username, password, admin FROM User;
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DROP TABLE User;
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ALTER TABLE UserNew RENAME TO User;
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`,
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`
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CREATE TABLE NetworkNew (
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id INTEGER PRIMARY KEY,
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name VARCHAR(255),
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user INTEGER NOT NULL,
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addr VARCHAR(255) NOT NULL,
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nick VARCHAR(255) NOT NULL,
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username VARCHAR(255),
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realname VARCHAR(255),
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pass VARCHAR(255),
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connect_commands VARCHAR(1023),
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sasl_mechanism VARCHAR(255),
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sasl_plain_username VARCHAR(255),
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sasl_plain_password VARCHAR(255),
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sasl_external_cert BLOB DEFAULT NULL,
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sasl_external_key BLOB DEFAULT NULL,
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FOREIGN KEY(user) REFERENCES User(id),
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UNIQUE(user, addr, nick),
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UNIQUE(user, name)
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);
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INSERT INTO NetworkNew
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SELECT Network.id, name, User.id as user, addr, nick,
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Network.username, realname, pass, connect_commands,
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sasl_mechanism, sasl_plain_username, sasl_plain_password,
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sasl_external_cert, sasl_external_key
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FROM Network
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JOIN User ON Network.user = User.username;
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DROP TABLE Network;
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ALTER TABLE NetworkNew RENAME TO Network;
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`,
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`
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ALTER TABLE Channel ADD COLUMN relay_detached INTEGER NOT NULL DEFAULT 0;
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ALTER TABLE Channel ADD COLUMN reattach_on INTEGER NOT NULL DEFAULT 0;
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ALTER TABLE Channel ADD COLUMN detach_after INTEGER NOT NULL DEFAULT 0;
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ALTER TABLE Channel ADD COLUMN detach_on INTEGER NOT NULL DEFAULT 0;
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`,
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}
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type DB struct {
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lock sync.RWMutex
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db *sql.DB
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}
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func OpenSQLDB(driver, source string) (*DB, error) {
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sqlDB, err := sql.Open(driver, source)
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if err != nil {
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return nil, err
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}
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db := &DB{db: sqlDB}
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if err := db.upgrade(); err != nil {
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return nil, err
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}
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return db, nil
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}
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func (db *DB) Close() error {
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db.lock.Lock()
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defer db.lock.Unlock()
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return db.db.Close()
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}
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func (db *DB) upgrade() error {
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db.lock.Lock()
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defer db.lock.Unlock()
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var version int
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if err := db.db.QueryRow("PRAGMA user_version").Scan(&version); err != nil {
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return fmt.Errorf("failed to query schema version: %v", err)
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}
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if version == len(migrations) {
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return nil
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} else if version > len(migrations) {
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return fmt.Errorf("soju (version %d) older than schema (version %d)", len(migrations), version)
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}
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tx, err := db.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 version == 0 {
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if _, err := tx.Exec(schema); err != nil {
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return fmt.Errorf("failed to initialize schema: %v", err)
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}
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} else {
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for i := version; i < len(migrations); i++ {
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if _, err := tx.Exec(migrations[i]); err != nil {
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return fmt.Errorf("failed to execute migration #%v: %v", i, err)
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}
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}
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}
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// For some reason prepared statements don't work here
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_, err = tx.Exec(fmt.Sprintf("PRAGMA user_version = %d", len(migrations)))
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if err != nil {
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return fmt.Errorf("failed to bump schema version: %v", err)
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}
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return tx.Commit()
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}
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func toNullString(s string) sql.NullString {
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return sql.NullString{
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String: s,
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Valid: s != "",
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}
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}
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func (db *DB) ListUsers() ([]User, error) {
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db.lock.RLock()
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defer db.lock.RUnlock()
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rows, err := db.db.Query("SELECT id, username, password, admin FROM User")
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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 users []User
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for rows.Next() {
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var user User
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var password sql.NullString
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if err := rows.Scan(&user.ID, &user.Username, &password, &user.Admin); err != nil {
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return nil, err
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}
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user.Password = password.String
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users = append(users, user)
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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 users, nil
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}
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func (db *DB) GetUser(username string) (*User, error) {
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db.lock.RLock()
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defer db.lock.RUnlock()
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user := &User{Username: username}
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var password sql.NullString
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row := db.db.QueryRow("SELECT id, password, admin FROM User WHERE username = ?", username)
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if err := row.Scan(&user.ID, &password, &user.Admin); err != nil {
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return nil, err
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}
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user.Password = password.String
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return user, nil
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}
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func (db *DB) StoreUser(user *User) error {
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db.lock.Lock()
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defer db.lock.Unlock()
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password := toNullString(user.Password)
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var err error
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if user.ID != 0 {
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_, err = db.db.Exec("UPDATE User SET password = ?, admin = ? WHERE username = ?",
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password, user.Admin, user.Username)
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} else {
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var res sql.Result
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res, err = db.db.Exec("INSERT INTO User(username, password, admin) VALUES (?, ?, ?)",
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user.Username, password, user.Admin)
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if err != nil {
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return err
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}
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user.ID, err = res.LastInsertId()
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}
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return err
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}
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func (db *DB) DeleteUser(id int64) error {
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db.lock.Lock()
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defer db.lock.Unlock()
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tx, err := db.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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_, err = tx.Exec(`DELETE FROM Channel
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WHERE id IN (
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SELECT Channel.id
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FROM Channel
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JOIN Network ON Channel.network = Network.id
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WHERE Network.user = ?
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)`, id)
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if err != nil {
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return err
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}
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_, err = tx.Exec("DELETE FROM Network WHERE user = ?", id)
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if err != nil {
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return err
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}
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_, err = tx.Exec("DELETE FROM User WHERE id = ?", id)
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if err != nil {
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return err
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}
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return tx.Commit()
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}
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func (db *DB) ListNetworks(userID int64) ([]Network, error) {
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db.lock.RLock()
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defer db.lock.RUnlock()
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rows, err := db.db.Query(`SELECT id, name, addr, nick, username, realname, pass,
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connect_commands, sasl_mechanism, sasl_plain_username, sasl_plain_password,
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sasl_external_cert, sasl_external_key
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FROM Network
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WHERE user = ?`,
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userID)
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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 networks []Network
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for rows.Next() {
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var net Network
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var name, username, realname, pass, connectCommands sql.NullString
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var saslMechanism, saslPlainUsername, saslPlainPassword sql.NullString
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err := rows.Scan(&net.ID, &name, &net.Addr, &net.Nick, &username, &realname,
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&pass, &connectCommands, &saslMechanism, &saslPlainUsername, &saslPlainPassword,
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&net.SASL.External.CertBlob, &net.SASL.External.PrivKeyBlob)
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if err != nil {
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return nil, err
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}
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net.Name = name.String
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net.Username = username.String
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net.Realname = realname.String
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net.Pass = pass.String
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if connectCommands.Valid {
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net.ConnectCommands = strings.Split(connectCommands.String, "\r\n")
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}
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net.SASL.Mechanism = saslMechanism.String
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net.SASL.Plain.Username = saslPlainUsername.String
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net.SASL.Plain.Password = saslPlainPassword.String
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networks = append(networks, net)
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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 networks, nil
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}
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func (db *DB) StoreNetwork(userID int64, network *Network) error {
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db.lock.Lock()
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defer db.lock.Unlock()
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netName := toNullString(network.Name)
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netUsername := toNullString(network.Username)
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realname := toNullString(network.Realname)
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pass := toNullString(network.Pass)
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connectCommands := toNullString(strings.Join(network.ConnectCommands, "\r\n"))
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var saslMechanism, saslPlainUsername, saslPlainPassword sql.NullString
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if network.SASL.Mechanism != "" {
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saslMechanism = toNullString(network.SASL.Mechanism)
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switch network.SASL.Mechanism {
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case "PLAIN":
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saslPlainUsername = toNullString(network.SASL.Plain.Username)
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saslPlainPassword = toNullString(network.SASL.Plain.Password)
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network.SASL.External.CertBlob = nil
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network.SASL.External.PrivKeyBlob = nil
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case "EXTERNAL":
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// keep saslPlain* nil
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default:
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return fmt.Errorf("soju: cannot store network: unsupported SASL mechanism %q", network.SASL.Mechanism)
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}
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}
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var err error
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if network.ID != 0 {
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_, err = db.db.Exec(`UPDATE Network
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SET name = ?, addr = ?, nick = ?, username = ?, realname = ?, pass = ?, connect_commands = ?,
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sasl_mechanism = ?, sasl_plain_username = ?, sasl_plain_password = ?,
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sasl_external_cert = ?, sasl_external_key = ?
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WHERE id = ?`,
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netName, network.Addr, network.Nick, netUsername, realname, pass, connectCommands,
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saslMechanism, saslPlainUsername, saslPlainPassword,
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network.SASL.External.CertBlob, network.SASL.External.PrivKeyBlob,
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network.ID)
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} else {
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var res sql.Result
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res, err = db.db.Exec(`INSERT INTO Network(user, name, addr, nick, username,
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realname, pass, connect_commands, sasl_mechanism, sasl_plain_username,
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sasl_plain_password, sasl_external_cert, sasl_external_key)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
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userID, netName, network.Addr, network.Nick, netUsername, realname, pass, connectCommands,
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saslMechanism, saslPlainUsername, saslPlainPassword, network.SASL.External.CertBlob,
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network.SASL.External.PrivKeyBlob)
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if err != nil {
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return err
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}
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network.ID, err = res.LastInsertId()
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}
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return err
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}
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func (db *DB) DeleteNetwork(id int64) error {
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db.lock.Lock()
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defer db.lock.Unlock()
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tx, err := db.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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_, err = tx.Exec("DELETE FROM Channel WHERE network = ?", id)
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if err != nil {
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return err
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}
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_, err = tx.Exec("DELETE FROM Network WHERE id = ?", id)
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if err != nil {
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return err
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}
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return tx.Commit()
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}
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func (db *DB) ListChannels(networkID int64) ([]Channel, error) {
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db.lock.RLock()
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defer db.lock.RUnlock()
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rows, err := db.db.Query(`SELECT id, name, key, detached, relay_detached, reattach_on, detach_after, detach_on
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FROM Channel
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WHERE network = ?`, networkID)
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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 channels []Channel
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for rows.Next() {
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var ch Channel
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var key sql.NullString
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var detachAfter int64
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if err := rows.Scan(&ch.ID, &ch.Name, &key, &ch.Detached, &ch.RelayDetached, &ch.ReattachOn, &detachAfter, &ch.DetachOn); err != nil {
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return nil, err
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}
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ch.Key = key.String
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ch.DetachAfter = time.Duration(detachAfter) * time.Second
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channels = append(channels, ch)
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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 channels, nil
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}
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func (db *DB) StoreChannel(networkID int64, ch *Channel) error {
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db.lock.Lock()
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defer db.lock.Unlock()
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key := toNullString(ch.Key)
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detachAfter := int64(math.Ceil(ch.DetachAfter.Seconds()))
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var err error
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if ch.ID != 0 {
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_, err = db.db.Exec(`UPDATE Channel
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SET network = ?, name = ?, key = ?, detached = ?, relay_detached = ?, reattach_on = ?, detach_after = ?, detach_on = ?
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WHERE id = ?`,
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networkID, ch.Name, key, ch.Detached, ch.RelayDetached, ch.ReattachOn, detachAfter, ch.DetachOn, ch.ID)
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} else {
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var res sql.Result
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res, err = db.db.Exec(`INSERT INTO Channel(network, name, key, detached, relay_detached, reattach_on, detach_after, detach_on)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?)`,
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networkID, ch.Name, key, ch.Detached, ch.RelayDetached, ch.ReattachOn, detachAfter, ch.DetachOn)
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if err != nil {
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return err
|
|
}
|
|
ch.ID, err = res.LastInsertId()
|
|
}
|
|
return err
|
|
}
|
|
|
|
func (db *DB) DeleteChannel(id int64) error {
|
|
db.lock.Lock()
|
|
defer db.lock.Unlock()
|
|
|
|
_, err := db.db.Exec("DELETE FROM Channel WHERE id = ?", id)
|
|
return err
|
|
}
|