Skip to content
Navigation Menu
{{ message }}
forked from claude-code-best/claude-code
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathremoteIO.ts
More file actions
258 lines (238 loc) · 9.77 KB
/
Copy pathremoteIO.ts
File metadata and controls
258 lines (238 loc) · 9.77 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
import type { StdoutMessage } from 'src/entrypoints/sdk/controlTypes.js'
import { PassThrough } from 'stream'
import { URL } from 'url'
import { getSessionId } from '../bootstrap/state.js'
import { getPollIntervalConfig } from '../bridge/pollConfig.js'
import { registerCleanup } from '../utils/cleanupRegistry.js'
import { setCommandLifecycleListener } from '../utils/commandLifecycle.js'
import { isDebugMode, logForDebugging } from '../utils/debug.js'
import { logForDiagnosticsNoPII } from '../utils/diagLogs.js'
import { isEnvTruthy } from '../utils/envUtils.js'
import { errorMessage } from '../utils/errors.js'
import { gracefulShutdown } from '../utils/gracefulShutdown.js'
import { logError } from '../utils/log.js'
import { writeToStdout } from '../utils/process.js'
import { getSessionIngressAuthToken } from '../utils/sessionIngressAuth.js'
import {
setSessionMetadataChangedListener,
setSessionStateChangedListener,
} from '../utils/sessionState.js'
import {
setInternalEventReader,
setInternalEventWriter,
} from '../utils/sessionStorage.js'
import { ndjsonSafeStringify } from './ndjsonSafeStringify.js'
import { StructuredIO } from './structuredIO.js'
import { CCRClient, CCRInitError } from './transports/ccrClient.js'
import { SSETransport } from './transports/SSETransport.js'
import type { Transport } from './transports/Transport.js'
import { getTransportForUrl } from './transports/transportUtils.js'
/**
* Bidirectional streaming for SDK mode with session tracking
* Supports WebSocket transport
*/
export class RemoteIO extends StructuredIO {
private url: URL
private transport: Transport
private inputStream: PassThrough
private readonly isBridge: boolean = false
private readonly isDebug: boolean = false
private ccrClient: CCRClient | null = null
private keepAliveTimer: ReturnType<typeof setInterval> | null = null
constructor(
streamUrl: string,
initialPrompt?: AsyncIterable<string>,
replayUserMessages?: boolean,
) {
const inputStream = new PassThrough({ encoding: 'utf8' })
super(inputStream, replayUserMessages)
this.inputStream = inputStream
this.url = new URL(streamUrl)
// Prepare headers with session token if available
const headers: Record<string, string> = {}
const sessionToken = getSessionIngressAuthToken()
if (sessionToken) {
headers['Authorization'] = `Bearer ${sessionToken}`
} else {
logForDebugging('[remote-io] No session ingress token available', {
level: 'error',
})
}
// Add environment runner version if available (set by Environment Manager)
const erVersion = process.env.CLAUDE_CODE_ENVIRONMENT_RUNNER_VERSION
if (erVersion) {
headers['x-environment-runner-version'] = erVersion
}
// Provide a callback that re-reads the session token dynamically.
// When the parent process refreshes the token (via token file or env var),
// the transport can pick it up on reconnection.
const refreshHeaders = (): Record<string, string> => {
const h: Record<string, string> = {}
const freshToken = getSessionIngressAuthToken()
if (freshToken) {
h['Authorization'] = `Bearer ${freshToken}`
}
const freshErVersion = process.env.CLAUDE_CODE_ENVIRONMENT_RUNNER_VERSION
if (freshErVersion) {
h['x-environment-runner-version'] = freshErVersion
}
return h
}
// Get appropriate transport based on URL protocol
this.transport = getTransportForUrl(
this.url,
headers,
getSessionId(),
refreshHeaders,
)
// Set up data callback
this.isBridge = process.env.CLAUDE_CODE_ENVIRONMENT_KIND === 'bridge'
this.isDebug = isDebugMode()
this.transport.setOnData((data: string) => {
this.inputStream.write(data)
if (this.isBridge && this.isDebug) {
writeToStdout(data.endsWith('\n') ? data : data + '\n')
}
})
// Set up close callback to handle connection failures
this.transport.setOnClose(() => {
// End the input stream to trigger graceful shutdown
this.inputStream.end()
})
// Initialize CCR v2 client (heartbeats, epoch, state reporting, event writes).
// The CCRClient constructor wires the SSE received-ack handler
// synchronously, so new CCRClient() MUST run before transport.connect() —
// otherwise early SSE frames hit an unwired onEventCallback and their
// 'received' delivery acks are silently dropped.
if (isEnvTruthy(process.env.CLAUDE_CODE_USE_CCR_V2)) {
// CCR v2 is SSE+POST by definition. getTransportForUrl returns
// SSETransport under the same env var, but the two checks live in
// different files — assert the invariant so a future decoupling
// fails loudly here instead of confusingly inside CCRClient.
if (!(this.transport instanceof SSETransport)) {
throw new Error(
'CCR v2 requires SSETransport; check getTransportForUrl',
)
}
this.ccrClient = new CCRClient(this.transport, this.url)
const init = this.ccrClient.initialize()
this.restoredWorkerState = init.catch(() => null)
init.catch((error: unknown) => {
logForDiagnosticsNoPII('error', 'cli_worker_lifecycle_init_failed', {
reason: error instanceof CCRInitError ? error.reason : 'unknown',
})
logError(
new Error(`CCRClient initialization failed: ${errorMessage(error)}`),
)
void gracefulShutdown(1, 'other')
})
registerCleanup(async () => this.ccrClient?.close())
// Register internal event writer for transcript persistence.
// When set, sessionStorage writes transcript messages as CCR v2
// internal events instead of v1 Session Ingress.
setInternalEventWriter((eventType, payload, options) =>
this.ccrClient!.writeInternalEvent(eventType, payload, options),
)
// Register internal event readers for session resume.
// When set, hydrateFromCCRv2InternalEvents() can fetch foreground
// and subagent internal events to reconstruct conversation state.
setInternalEventReader(
() => this.ccrClient!.readInternalEvents(),
() => this.ccrClient!.readSubagentInternalEvents(),
)
const LIFECYCLE_TO_DELIVERY = {
started: 'processing',
completed: 'processed',
} as const
setCommandLifecycleListener((uuid, state) => {
this.ccrClient?.reportDelivery(uuid, LIFECYCLE_TO_DELIVERY[state])
})
setSessionStateChangedListener((state, details) => {
this.ccrClient?.reportState(state, details)
})
setSessionMetadataChangedListener(
metadata => {
this.ccrClient?.reportMetadata(metadata)
},
{ replayCurrent: true },
)
}
// Start connection only after all callbacks are wired (setOnData above,
// setOnEvent inside new CCRClient() when CCR v2 is enabled).
void this.transport.connect()
// Push a silent keep_alive frame on a fixed interval so upstream
// proxies and the session-ingress layer don't GC an otherwise-idle
// remote control session. The keep_alive type is filtered before
// reaching any client UI (Query.ts drops it; structuredIO.ts drops it;
// web/iOS/Android never see it in their message loop). Interval comes
// from GrowthBook (tengu_bridge_poll_interval_config
// session_keepalive_interval_v2_ms, default 120s); 0 = disabled.
// Bridge-only: fixes Envoy idle timeout on bridge-topology sessions
// (#21931). byoc workers ran without this before #21931 and do not
// need it — different network path.
const keepAliveIntervalMs =
getPollIntervalConfig().session_keepalive_interval_v2_ms
if (this.isBridge && keepAliveIntervalMs > 0) {
this.keepAliveTimer = setInterval(() => {
logForDebugging('[remote-io] keep_alive sent')
void this.write({ type: 'keep_alive' }).catch(err => {
logForDebugging(
`[remote-io] keep_alive write failed: ${errorMessage(err)}`,
)
})
}, keepAliveIntervalMs)
this.keepAliveTimer.unref?.()
}
// Register for graceful shutdown cleanup
registerCleanup(async () => this.close())
// If initial prompt is provided, send it through the input stream
if (initialPrompt) {
// Convert the initial prompt to the input stream format.
// Chunks from stdin may already contain trailing newlines, so strip
// them before appending our own to avoid double-newline issues that
// cause structuredIO to parse empty lines. String() handles both
// string chunks and Buffer objects from process.stdin.
const stream = this.inputStream
void (async () => {
for await (const chunk of initialPrompt) {
stream.write(String(chunk).replace(/\n$/, '') + '\n')
}
})()
}
}
override flushInternalEvents(): Promise<void> {
return this.ccrClient?.flushInternalEvents() ?? Promise.resolve()
}
override get internalEventsPending(): number {
return this.ccrClient?.internalEventsPending ?? 0
}
/**
* Send output to the transport.
* In bridge mode, control_request messages are always echoed to stdout so the
* bridge parent can detect permission requests. Other messages are echoed only
* in debug mode.
*/
async write(message: StdoutMessage): Promise<void> {
if (this.ccrClient) {
await this.ccrClient.writeEvent(message)
} else {
await this.transport.write(message)
}
if (this.isBridge) {
if (message.type === 'control_request' || this.isDebug) {
writeToStdout(ndjsonSafeStringify(message) + '\n')
}
}
}
/**
* Clean up connections gracefully
*/
close(): void {
if (this.keepAliveTimer) {
clearInterval(this.keepAliveTimer)
this.keepAliveTimer = null
}
this.transport.close()
this.inputStream.end()
}
}
You can’t perform that action at this time.