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package store
import (
"fmt"
"time"
"github.com/shiv/internal/events"
"github.com/shiv/internal/logger"
)
const wsFrameSizeLimit = 1 << 20 // 1 MB per frame
// WebSocketFrame is a single frame captured during a WebSocket session.
type WebSocketFrame struct {
ID uint64
ConnectionID uint64 // foreign key → websocket_connections.id
Timestamp time.Time
Direction events.WebSocketDirection
Opcode events.WebSocketOpcode
Payload []byte
}
// WebSocketConnection represents the initial HTTP upgrade that started a
// WebSocket session. It is tied to the history transaction of the upgrade
// request so the UI can link from history to the frame list.
type WebSocketConnection struct {
ID uint64
HistoryID uint64
Host string
URL string
TLS bool
InScope bool
Timestamp time.Time
FrameCount int // populated on read, not stored
}
// LogWebSocketConnection inserts a new WebSocket connection record and returns
// its ID. Called once when the upgrade handshake completes.
func (s *Store) LogWebSocketConnection(conn WebSocketConnection) (uint64, error) {
var id uint64
err := s.write(func() error {
res, err := s.db.Exec(`
INSERT INTO websocket_connections (history_id, host, url, tls, in_scope, timestamp)
VALUES (?, ?, ?, ?, ?, ?)`,
conn.HistoryID,
conn.Host,
conn.URL,
boolToInt(conn.TLS),
boolToInt(conn.InScope),
conn.Timestamp.UTC().Format(time.RFC3339),
)
if err != nil {
return fmt.Errorf("store: log websocket connection: %w", err)
}
lastID, err := res.LastInsertId()
if err != nil {
return fmt.Errorf("store: websocket connection last insert id: %w", err)
}
id = uint64(lastID)
return nil
})
if err != nil {
return 0, err
}
// Notify UI listeners — non-blocking, same pattern as Updates.
conn.ID = id
select {
case s.WebSocketConnections <- conn:
default:
}
return id, nil
}
// LogWebSocketFrame appends a single frame to an existing connection.
func (s *Store) LogWebSocketFrame(frame WebSocketFrame) error {
err := s.write(func() error {
_, err := s.db.Exec(`
INSERT INTO websocket_frames (connection_id, timestamp, direction, opcode, payload)
VALUES (?, ?, ?, ?, ?)`,
frame.ConnectionID,
frame.Timestamp.UTC().Format(time.RFC3339),
int(frame.Direction),
int(frame.Opcode),
frame.Payload,
)
if err != nil {
return fmt.Errorf("store: log websocket frame: %w", err)
}
return nil
})
if err != nil {
return err
}
// Notify UI listeners — non-blocking.
select {
case s.WebSocketFrames <- frame:
default:
}
return nil
}
// AllWebSocketConnections returns all WebSocket connections ordered by id
// descending, with frame counts.
func (s *Store) AllWebSocketConnections() ([]WebSocketConnection, error) {
rows, err := s.db.Query(`
SELECT c.id, c.history_id, c.host, c.url, c.tls, c.in_scope, c.timestamp,
COUNT(f.id) as frame_count
FROM websocket_connections c
LEFT JOIN websocket_frames f ON f.connection_id = c.id
GROUP BY c.id
ORDER BY c.id DESC`)
if err != nil {
return nil, fmt.Errorf("store: query websocket connections: %w", err)
}
defer rows.Close()
var conns []WebSocketConnection
for rows.Next() {
var c WebSocketConnection
var ts string
var tlsInt, scopeInt int
if err := rows.Scan(&c.ID, &c.HistoryID, &c.Host, &c.URL, &tlsInt, &scopeInt, &ts, &c.FrameCount); err != nil {
return nil, fmt.Errorf("store: scan websocket connection: %w", err)
}
c.Timestamp, _ = time.Parse(time.RFC3339, ts)
c.TLS = tlsInt == 1
c.InScope = scopeInt == 1
conns = append(conns, c)
}
return conns, rows.Err()
}
// FramesForConnection returns all frames for a given connection ordered by id
// ascending (chronological).
func (s *Store) FramesForConnection(connectionID uint64) ([]WebSocketFrame, error) {
rows, err := s.db.Query(`
SELECT id, connection_id, timestamp, direction, opcode, payload
FROM websocket_frames
WHERE connection_id = ?
ORDER BY id ASC`, connectionID)
if err != nil {
return nil, fmt.Errorf("store: query websocket frames: %w", err)
}
defer rows.Close()
var frames []WebSocketFrame
for rows.Next() {
var f WebSocketFrame
var ts string
if err := rows.Scan(&f.ID, &f.ConnectionID, &ts, &f.Direction, &f.Opcode, &f.Payload); err != nil {
return nil, fmt.Errorf("store: scan websocket frame: %w", err)
}
f.Timestamp, _ = time.Parse(time.RFC3339, ts)
frames = append(frames, f)
}
return frames, rows.Err()
}
// ObserveWebSocketConnection implements events.WebSocketConnectionObserver.
func (s *Store) ObserveWebSocketConnection(e events.WebSocketConnectionEvent) uint64 {
id, err := s.LogWebSocketConnection(WebSocketConnection{
Host: e.Host,
URL: e.URL,
TLS: e.TLS,
InScope: s.InScope(e.Host),
Timestamp: e.Timestamp,
})
if err != nil {
logger.Error("store: observe ws connection: %v", err)
return 0
}
return id
}
// ObserveWebSocketFrame implements events.WebSocketFrameObserver.
func (s *Store) ObserveWebSocketFrame(e events.WebSocketFrameEvent) events.WebSocketFrameResult {
if e.ConnectionID == 0 {
return events.WebSocketFrameResult{Payload: e.Payload}
}
payload := e.Payload
if len(payload) > wsFrameSizeLimit {
payload = payload[:wsFrameSizeLimit]
}
if err := s.LogWebSocketFrame(WebSocketFrame{
ConnectionID: e.ConnectionID,
Timestamp: e.Timestamp,
Direction: e.Direction,
Opcode: e.Opcode,
Payload: payload,
}); err != nil {
logger.Error("store: observe ws frame: %v", err)
}
return events.WebSocketFrameResult{Payload: e.Payload}
}
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