| 1 | //! Full graph migration into the held canonical Runtime. The old SQLite file |
| 2 | //! remains recovery evidence; this adapter never becomes another transcript writer. |
| 3 | use std::collections::HashMap; |
| 4 | use std::path::Path; |
| 5 | use std::sync::Arc; |
| 6 | |
| 7 | use anyhow::{Context, Result, anyhow, bail, ensure}; |
| 8 | use axum::{Json, extract::State}; |
| 9 | use chrono::{DateTime, Utc}; |
| 10 | use codewhale_models::{ContentBlock, Message, Role}; |
| 11 | use codewhale_protocol::{ |
| 12 | CanonicalHistoryImportRequest, CanonicalHistoryOptions, CanonicalHistorySource, |
| 13 | CanonicalThreadMutation, CanonicalThreadMutationRequest, CanonicalThreadReceipt, |
| 14 | LegacyThreadHistory, MAX_CANONICAL_HISTORY_BYTES, MAX_CANONICAL_HISTORY_ENTRIES, |
| 15 | }; |
| 16 | |
| 17 | use super::{ApiError, RuntimeApiState}; |
| 18 | use crate::runtime_threads::{ |
| 19 | CreateThreadRequest, RuntimeHistoryOperation, RuntimeHistoryWitness, RuntimeThreadManager, |
| 20 | ThreadListFilter, |
| 21 | }; |
| 22 | use crate::session_manager::{SavedSession, SessionManager}; |
| 23 | use crate::session_tree::{SessionEntry, SessionEntryKind, SessionImportContainer, SessionJournal}; |
| 24 | |
| 25 | pub(crate) async fn history_owner_work<T: Send + 'static>( |
| 26 | work: impl FnOnce() -> Result<T> + Send + 'static, |
| 27 | ) -> Result<T> { |
| 28 | #[cfg(test)] |
| 29 | let ticket = crate::test_support::env_scope_ticket(); |
| 30 | codewhale_app_server::daemon_socket::owner_work(move || { |
| 31 | #[cfg(test)] |
| 32 | let _membership = crate::test_support::join_env_scope(ticket); |
| 33 | work() |
| 34 | }) |
| 35 | .await |
| 36 | } |
| 37 | |
| 38 | /// Validate every branch before traversing the active projection or creating a |
| 39 | /// canonical record. The existing journal validator alone does not reject cycles |
| 40 | /// or duplicate IDs, so this boundary must establish those stronger invariants. |
| 41 | fn legacy_journal(history: &LegacyThreadHistory) -> Result<SessionJournal> { |
| 42 | ensure!( |
| 43 | history.version == 1, |
| 44 | "unsupported legacy history schema; source retained for recovery" |
| 45 | ); |
| 46 | ensure!( |
| 47 | history.state_store_id.len() == 64 |
| 48 | && history |
| 49 | .state_store_id |
| 50 | .bytes() |
| 51 | .all(|byte| byte.is_ascii_hexdigit() && !byte.is_ascii_uppercase()), |
| 52 | "invalid source database identity" |
| 53 | ); |
| 54 | ensure!( |
| 55 | !history.thread_id.is_empty() && history.thread_id.len() <= 128, |
| 56 | "invalid source thread identity" |
| 57 | ); |
| 58 | ensure!( |
| 59 | history.messages.len() <= MAX_CANONICAL_HISTORY_ENTRIES, |
| 60 | "legacy history entry bound exceeded" |
| 61 | ); |
| 62 | let mut parents = HashMap::with_capacity(history.messages.len()); |
| 63 | for row in &history.messages { |
| 64 | ensure!( |
| 65 | row.id > 0 |
| 66 | && row.thread_id == history.thread_id |
| 67 | && parents.insert(row.id, row.parent_entry_id).is_none(), |
| 68 | "duplicate or foreign legacy history entry" |
| 69 | ); |
| 70 | } |
| 71 | for parent in parents.values().flatten() { |
| 72 | ensure!( |
| 73 | parents.contains_key(parent), |
| 74 | "dangling legacy history parent; source retained for recovery" |
| 75 | ); |
| 76 | } |
| 77 | match history.current_leaf_id { |
| 78 | Some(leaf) => ensure!(parents.contains_key(&leaf), "legacy history leaf is absent"), |
| 79 | None => ensure!( |
| 80 | parents.is_empty(), |
| 81 | "nonempty legacy history has no selected leaf" |
| 82 | ), |
| 83 | } |
| 84 | if let Some(goal) = history.goal.as_ref() { |
| 85 | ensure!( |
| 86 | goal.thread_id == history.thread_id, |
| 87 | "legacy goal belongs to another source thread" |
| 88 | ); |
| 89 | goal.validate_stall_state().map_err(anyhow::Error::msg)?; |
| 90 | } |
| 91 | // Three-color iterative traversal bounds work and stack even for a deeply |
| 92 | // nested imported branch; no recursive call uses untrusted graph depth. |
| 93 | let mut colors = HashMap::with_capacity(parents.len()); |
| 94 | for id in parents.keys().copied() { |
| 95 | let mut cursor = Some(id); |
| 96 | let mut path = Vec::new(); |
| 97 | while let Some(id) = cursor { |
| 98 | match colors.get(&id) { |
| 99 | Some(1) => { |
| 100 | return Err(anyhow!( |
| 101 | "cyclic legacy history; source retained for recovery" |
| 102 | )); |
| 103 | } |
| 104 | Some(2) => break, |
| 105 | _ => { |
| 106 | colors.insert(id, 1); |
| 107 | path.push(id); |
| 108 | cursor = parents[&id]; |
| 109 | } |
| 110 | } |
| 111 | } |
| 112 | for id in path { |
| 113 | colors.insert(id, 2); |
| 114 | } |
| 115 | } |
| 116 | let id = |id: i64| format!("legacy:{}:{id}", history.state_store_id); |
| 117 | let mut entries = Vec::with_capacity(history.messages.len()); |
| 118 | for row in &history.messages { |
| 119 | let message = match (&row.item, row.role.as_str()) { |
| 120 | (Some(item), "history") => { |
| 121 | ensure!( |
| 122 | serde_json::from_str::<serde_json::Value>(&row.content) |
| 123 | .ok() |
| 124 | .as_ref() |
| 125 | == Some(item), |
| 126 | "legacy history payload and content disagree; source retained for recovery" |
| 127 | ); |
| 128 | let message = serde_json::from_value::<Message>(item.clone()).context("opaque legacy item cannot be imported as model content; source retained for recovery")?; |
| 129 | ensure!( |
| 130 | serde_json::to_value(&message)? == *item, |
| 131 | "legacy message has unsupported fields; source retained for recovery" |
| 132 | ); |
| 133 | message |
| 134 | } |
| 135 | (None, role @ ("user" | "assistant" | "system")) => Message { |
| 136 | role: match role { |
| 137 | "user" => Role::User, |
| 138 | "assistant" => Role::Assistant, |
| 139 | _ => Role::System, |
| 140 | }, |
| 141 | content: vec![ContentBlock::Text { |
| 142 | text: row.content.clone(), |
| 143 | cache_control: None, |
| 144 | }], |
| 145 | }, |
| 146 | _ => { |
| 147 | return Err(anyhow!( |
| 148 | "unsupported legacy message representation; source retained for recovery" |
| 149 | )); |
| 150 | } |
| 151 | }; |
| 152 | if message.role == Role::User { |
| 153 | crate::image_attach::runtime_images_from_blocks(&message.content) |
| 154 | .map_err(|error| anyhow!("invalid imported image: {error}"))?; |
| 155 | } |
| 156 | entries.push(SessionEntry { |
| 157 | id: id(row.id), |
| 158 | parent_id: row.parent_entry_id.map(id), |
| 159 | kind: SessionEntryKind::Message { message }, |
| 160 | created_at: DateTime::<Utc>::from_timestamp(row.created_at, 0) |
| 161 | .ok_or_else(|| anyhow!("invalid legacy history timestamp"))?, |
| 162 | spawn_depth: 0, |
| 163 | }); |
| 164 | } |
| 165 | let journal = SessionJournal { |
| 166 | entries, |
| 167 | leaf_id: history.current_leaf_id.map(id), |
| 168 | schema_version: 1, |
| 169 | spawn_depth: 0, |
| 170 | }; |
| 171 | journal.validate().map_err(anyhow::Error::msg)?; |
| 172 | Ok(journal) |
| 173 | } |
| 174 | |
| 175 | pub(super) async fn import_thread_history( |
| 176 | State(state): State<RuntimeApiState>, |
| 177 | Json(request): Json<CanonicalHistoryImportRequest>, |
| 178 | ) -> Result<Json<CanonicalThreadReceipt>, ApiError> { |
| 179 | ensure_request_scope(&state.runtime_threads, &request) |
| 180 | .map_err(|error| ApiError::bad_request(error.to_string()))?; |
| 181 | // Immediate refusal avoids an unbounded queue retaining whole histories. |
| 182 | let admission = state |
| 183 | .runtime_threads |
| 184 | .try_history_import_guard() |
| 185 | .map_err(|error| ApiError::conflict(error.to_string()))?; |
| 186 | // The actual owner job keeps the admission and request after the HTTP waiter |
| 187 | // disappears. A retry observes its durable identity, never a fresh creation. |
| 188 | let job = tokio::spawn(async move { |
| 189 | let _admission = admission; |
| 190 | import_into_owner(state, request).await |
| 191 | }); |
| 192 | job.await |
| 193 | .map_err(|_| { |
| 194 | ApiError::internal("canonical history worker did not settle; retry the same operation") |
| 195 | })? |
| 196 | .map(Json) |
| 197 | .map_err(|error| ApiError::conflict(error.to_string())) |
| 198 | } |
| 199 | |
| 200 | fn ensure_request_scope( |
| 201 | runtime: &RuntimeThreadManager, |
| 202 | request: &CanonicalHistoryImportRequest, |
| 203 | ) -> Result<()> { |
| 204 | ensure!( |
| 205 | request.version == 1, |
| 206 | "unsupported canonical history request schema" |
| 207 | ); |
| 208 | let binding = runtime.session_store_binding(); |
| 209 | ensure!( |
| 210 | request.expected_data_dir == binding.data_dir |
| 211 | && request.expected_execution_scope == binding.execution_scope, |
| 212 | "canonical history request belongs to a different held owner store" |
| 213 | ); |
| 214 | ensure!( |
| 215 | !request.operation_key.is_empty() |
| 216 | && request.operation_key.len() <= 128 |
| 217 | && !request.operation_key.chars().any(char::is_control), |
| 218 | "invalid history operation key" |
| 219 | ); |
| 220 | ensure!( |
| 221 | serde_json::to_vec(request)?.len() <= MAX_CANONICAL_HISTORY_BYTES, |
| 222 | "encoded history request exceeds canonical import bound" |
| 223 | ); |
| 224 | Ok(()) |
| 225 | } |
| 226 | |
| 227 | async fn import_into_owner( |
| 228 | state: RuntimeApiState, |
| 229 | request: CanonicalHistoryImportRequest, |
| 230 | ) -> Result<CanonicalThreadReceipt> { |
| 231 | let runtime = Arc::clone(&state.runtime_threads); |
| 232 | // Validate and fingerprint the bounded graph on the existing filesystem/ |
| 233 | // owner worker boundary before retaining or mutating canonical records. |
| 234 | let (request, journal, request_digest, history_digest) = history_owner_work(move || { |
| 235 | let journal = legacy_journal(&request.history)?; |
| 236 | let request_digest = crate::hashing::sha256_hex( |
| 237 | crate::client::canonical_json(&serde_json::to_value(&request)?).as_bytes(), |
| 238 | ); |
| 239 | let history_digest = crate::hashing::sha256_hex( |
| 240 | crate::client::canonical_json(&serde_json::to_value(&journal)?).as_bytes(), |
| 241 | ); |
| 242 | Ok((request, journal, request_digest, history_digest)) |
| 243 | }) |
| 244 | .await?; |
| 245 | let target = if let Some(id) = request.target_runtime_thread_id.as_deref() { |
| 246 | let thread = runtime.get_thread(id).await?; |
| 247 | ensure!( |
| 248 | request.workspace == thread.workspace, |
| 249 | "existing canonical target belongs to a different selected workspace" |
| 250 | ); |
| 251 | let session = thread.session_id.ok_or_else(|| { |
| 252 | anyhow!("existing canonical target has no bound full document; recovery required") |
| 253 | })?; |
| 254 | Some((id.to_string(), session)) |
| 255 | } else { |
| 256 | None |
| 257 | }; |
| 258 | let target_for_reservation = target.clone(); |
| 259 | let reservation_runtime = Arc::clone(&runtime); |
| 260 | let key = request.operation_key.clone(); |
| 261 | let operation = history_owner_work(move || match target_for_reservation.as_ref() { |
| 262 | Some((thread, session)) => reservation_runtime.reserve_history_operation_for_target( |
| 263 | &key, |
| 264 | &request_digest, |
| 265 | &history_digest, |
| 266 | Some((thread.as_str(), session.as_str())), |
| 267 | ), |
| 268 | None => { |
| 269 | reservation_runtime.reserve_history_operation(&key, &request_digest, &history_digest) |
| 270 | } |
| 271 | }) |
| 272 | .await?; |
| 273 | if operation.committed { |
| 274 | // A missing committed target is lost history, never a reason to remint. |
| 275 | let thread = runtime |
| 276 | .get_thread(&operation.receipt.runtime_thread_id) |
| 277 | .await?; |
| 278 | ensure!( |
| 279 | thread.session_id.as_deref() == Some(operation.receipt.session_id.as_str()), |
| 280 | "committed history target changed; recovery required" |
| 281 | ); |
| 282 | let sessions_dir = state.sessions_dir.clone(); |
| 283 | let binding = runtime.session_store_binding(); |
| 284 | let expected = journal.clone(); |
| 285 | history_owner_work(move || { |
| 286 | verify_import_checkpoint( |
| 287 | &SessionManager::new(sessions_dir)?, |
| 288 | &thread, |
| 289 | &binding, |
| 290 | &expected, |
| 291 | ) |
| 292 | }) |
| 293 | .await?; |
| 294 | let goal_runtime = Arc::clone(&runtime); |
| 295 | let original_thread = request.history.thread_id.clone(); |
| 296 | let goal = request.history.goal.clone(); |
| 297 | let expected = operation.clone(); |
| 298 | history_owner_work(move || { |
| 299 | goal_runtime.adopt_history_goal(&expected, &original_thread, goal) |
| 300 | }) |
| 301 | .await?; |
| 302 | return Ok(operation.receipt); |
| 303 | } |
| 304 | let lookup_runtime = Arc::clone(&runtime); |
| 305 | let thread_id = operation.receipt.runtime_thread_id.clone(); |
| 306 | let existing = |
| 307 | history_owner_work(move || lookup_runtime.history_operation_thread(&thread_id)).await?; |
| 308 | let thread = match existing { |
| 309 | Some(thread) => thread, |
| 310 | None => { |
| 311 | runtime |
| 312 | .create_thread_with_reserved_id( |
| 313 | CreateThreadRequest { |
| 314 | workspace: Some(request.workspace), |
| 315 | model: request.model, |
| 316 | ..Default::default() |
| 317 | }, |
| 318 | state.config_path.as_deref(), |
| 319 | state.config_profile.as_deref(), |
| 320 | Some(operation.receipt.runtime_thread_id.clone()), |
| 321 | ) |
| 322 | .await? |
| 323 | } |
| 324 | }; |
| 325 | let mut session = SavedSession::import_foreign( |
| 326 | SessionImportContainer::new("legacy-state-sqlite".into(), &journal, None), |
| 327 | thread.workspace.clone(), |
| 328 | thread.model.clone(), |
| 329 | ) |
| 330 | .map_err(anyhow::Error::msg)?; |
| 331 | session.metadata.id = operation.receipt.session_id.clone(); |
| 332 | session.system_prompt.clone_from(&thread.system_prompt); |
| 333 | session.metadata.created_at = operation.created_at; |
| 334 | session.metadata.updated_at = operation.created_at; |
| 335 | session.metadata.runtime_store = Some(runtime.session_store_binding()); |
| 336 | session.metadata.set_model_provider_route( |
| 337 | thread |
| 338 | .model_provider |
| 339 | .as_deref() |
| 340 | .ok_or_else(|| anyhow!("canonical thread has no captured provider"))?, |
| 341 | thread.model_provider_id.as_deref(), |
| 342 | ); |
| 343 | let mut captured_target_document_digest = None; |
| 344 | if target.is_some() { |
| 345 | let detail = runtime.get_thread_detail(&thread.id).await?; |
| 346 | ensure!( |
| 347 | !super::sessions::thread_detail_has_live_work(&detail), |
| 348 | "canonical target has live work; retry the same import after settlement" |
| 349 | ); |
| 350 | let full = snapshot_in_owner(state.clone(), thread.id.clone()) |
| 351 | .await |
| 352 | .map_err(|error| anyhow!(error.message))?; |
| 353 | captured_target_document_digest = full.saved_document_digest; |
| 354 | ensure!( |
| 355 | captured_target_document_digest.is_some(), |
| 356 | "canonical target full document witness is absent" |
| 357 | ); |
| 358 | let mut observed: SavedSession = serde_json::from_value(full.session)?; |
| 359 | ensure!( |
| 360 | observed.metadata.id == operation.receipt.session_id, |
| 361 | "canonical target session changed before source merge" |
| 362 | ); |
| 363 | let imported = session |
| 364 | .journal |
| 365 | .take() |
| 366 | .ok_or_else(|| anyhow!("source journal missing"))?; |
| 367 | let destination = observed |
| 368 | .journal |
| 369 | .as_mut() |
| 370 | .ok_or_else(|| anyhow!("target full journal missing"))?; |
| 371 | let mut positions: HashMap<String, usize> = destination |
| 372 | .entries |
| 373 | .iter() |
| 374 | .enumerate() |
| 375 | .map(|(index, entry)| (entry.id.clone(), index)) |
| 376 | .collect(); |
| 377 | for entry in imported.entries { |
| 378 | if let Some(index) = positions.get(&entry.id).copied() { |
| 379 | ensure!( |
| 380 | destination.entries[index] == entry, |
| 381 | "imported entry identity conflicts with canonical history" |
| 382 | ); |
| 383 | } else { |
| 384 | ensure!( |
| 385 | destination.entries.len() < MAX_CANONICAL_HISTORY_ENTRIES, |
| 386 | "merged full history exceeds entry transport bound; both sources retained" |
| 387 | ); |
| 388 | positions.insert(entry.id.clone(), destination.entries.len()); |
| 389 | destination.entries.push(entry); |
| 390 | } |
| 391 | } |
| 392 | if destination.leaf_id.is_none() { |
| 393 | destination.leaf_id = imported.leaf_id; |
| 394 | observed.leaf_id = destination.leaf_id.clone(); |
| 395 | observed.messages = destination.to_messages(); |
| 396 | } |
| 397 | ensure!( |
| 398 | destination.entries.len() <= MAX_CANONICAL_HISTORY_ENTRIES, |
| 399 | "merged full history exceeds entry transport bound; both sources retained" |
| 400 | ); |
| 401 | let mut bound = HistorySizeBound(MAX_CANONICAL_HISTORY_BYTES); |
| 402 | serde_json::to_writer(&mut bound, &observed)?; |
| 403 | session = observed; |
| 404 | } |
| 405 | let target_merge = target.is_some(); |
| 406 | let sessions_dir = state.sessions_dir.clone(); |
| 407 | let (session, _target_lease) = history_owner_work(move || { |
| 408 | let manager = SessionManager::new(sessions_dir)?; |
| 409 | let lease = manager.reserve_session_for_external_write(&session.metadata.id)?; |
| 410 | match manager |
| 411 | .load_session_snapshot_bounded(&session.metadata.id, MAX_CANONICAL_HISTORY_BYTES) |
| 412 | { |
| 413 | Ok(observed) if target_merge => { |
| 414 | ensure!( |
| 415 | Some(saved_document_digest(&observed)?) == captured_target_document_digest, |
| 416 | "canonical full document changed before source merge; retry the same operation" |
| 417 | ); |
| 418 | ensure!( |
| 419 | observed.metadata.runtime_store.as_ref().is_none_or( |
| 420 | |binding| Some(binding) == session.metadata.runtime_store.as_ref() |
| 421 | ) && observed.metadata.workspace == session.metadata.workspace, |
| 422 | "canonical target store binding changed before merge" |
| 423 | ); |
| 424 | manager.save_session(&session)?; |
| 425 | return Ok((session, lease)); |
| 426 | } |
| 427 | Ok(observed) => { |
| 428 | ensure!( |
| 429 | observed.journal == session.journal |
| 430 | && observed.metadata.runtime_store == session.metadata.runtime_store |
| 431 | && observed.metadata.workspace == session.metadata.workspace, |
| 432 | "reserved imported session diverged; recovery required" |
| 433 | ); |
| 434 | return Ok((observed, lease)); |
| 435 | } |
| 436 | Err(error) if error.kind() == std::io::ErrorKind::NotFound && !target_merge => {} |
| 437 | Err(error) => return Err(error.into()), |
| 438 | } |
| 439 | manager.save_session(&session)?; |
| 440 | Ok((session, lease)) |
| 441 | }) |
| 442 | .await?; |
| 443 | let detail = runtime.get_thread_detail(&thread.id).await?; |
| 444 | ensure!( |
| 445 | !super::sessions::thread_detail_has_live_work(&detail), |
| 446 | "reserved imported thread has active work; recovery required" |
| 447 | ); |
| 448 | if detail.turns.is_empty() && detail.items.is_empty() { |
| 449 | runtime |
| 450 | .seed_thread_from_messages_with_history_operation( |
| 451 | &thread.id, |
| 452 | &session.messages, |
| 453 | Some(&operation), |
| 454 | &session.messages, |
| 455 | ) |
| 456 | .await?; |
| 457 | } else if !target_merge { |
| 458 | let sessions_dir = state.sessions_dir.clone(); |
| 459 | let binding = runtime.session_store_binding(); |
| 460 | let expected = journal.clone(); |
| 461 | let observed_thread = runtime.get_thread(&thread.id).await?; |
| 462 | history_owner_work(move || { |
| 463 | verify_import_checkpoint_under_lease( |
| 464 | &SessionManager::new(sessions_dir)?, |
| 465 | &observed_thread, |
| 466 | &binding, |
| 467 | &expected, |
| 468 | ) |
| 469 | }) |
| 470 | .await?; |
| 471 | } |
| 472 | runtime |
| 473 | .set_thread_session_checkpoint(&thread.id, &session) |
| 474 | .await?; |
| 475 | let goal_runtime = Arc::clone(&runtime); |
| 476 | let original_thread = request.history.thread_id.clone(); |
| 477 | let goal = request.history.goal.clone(); |
| 478 | let expected = operation.clone(); |
| 479 | history_owner_work(move || goal_runtime.adopt_history_goal(&expected, &original_thread, goal)) |
| 480 | .await?; |
| 481 | let commit_runtime = Arc::clone(&runtime); |
| 482 | history_owner_work(move || commit_runtime.commit_history_operation(operation)).await |
| 483 | } |
| 484 | |
| 485 | fn verify_import_checkpoint( |
| 486 | manager: &SessionManager, |
| 487 | thread: &crate::runtime_threads::ThreadRecord, |
| 488 | binding: &crate::runtime_threads::RuntimeStoreBinding, |
| 489 | expected: &SessionJournal, |
| 490 | ) -> Result<()> { |
| 491 | let id = thread |
| 492 | .session_id |
| 493 | .as_deref() |
| 494 | .ok_or_else(|| anyhow!("committed history target has no session; recovery required"))?; |
| 495 | let _lease = manager.reserve_session_for_external_write(id)?; |
| 496 | verify_import_checkpoint_under_lease(manager, thread, binding, expected) |
| 497 | } |
| 498 | |
| 499 | fn verify_import_checkpoint_under_lease( |
| 500 | manager: &SessionManager, |
| 501 | thread: &crate::runtime_threads::ThreadRecord, |
| 502 | binding: &crate::runtime_threads::RuntimeStoreBinding, |
| 503 | expected: &SessionJournal, |
| 504 | ) -> Result<()> { |
| 505 | let id = thread |
| 506 | .session_id |
| 507 | .as_deref() |
| 508 | .ok_or_else(|| anyhow!("canonical target session is absent"))?; |
| 509 | let observed = manager.load_session_snapshot_bounded(id, MAX_CANONICAL_HISTORY_BYTES)?; |
| 510 | ensure!( |
| 511 | observed.metadata.runtime_store.as_ref() == Some(binding) |
| 512 | && observed.metadata.workspace == thread.workspace, |
| 513 | "committed history session binding changed; recovery required" |
| 514 | ); |
| 515 | let checkpoint = thread |
| 516 | .saved_session_checkpoint |
| 517 | .as_ref() |
| 518 | .ok_or_else(|| anyhow!("committed history has no verifiable checkpoint"))?; |
| 519 | ensure!( |
| 520 | crate::runtime_threads::checkpoint_prefix_len(checkpoint, &observed.messages)?.is_some(), |
| 521 | "committed history checkpoint differs from its document; recovery required" |
| 522 | ); |
| 523 | let journal = observed |
| 524 | .journal |
| 525 | .as_ref() |
| 526 | .ok_or_else(|| anyhow!("committed full history journal is missing"))?; |
| 527 | let entries: HashMap<_, _> = journal |
| 528 | .entries |
| 529 | .iter() |
| 530 | .map(|entry| (entry.id.as_str(), entry)) |
| 531 | .collect(); |
| 532 | ensure!( |
| 533 | entries.len() == journal.entries.len() |
| 534 | && expected.entries.iter().all(|entry| entries |
| 535 | .get(entry.id.as_str()) |
| 536 | .is_some_and(|observed| *observed == entry)), |
| 537 | "committed full history branches changed; recovery required" |
| 538 | ); |
| 539 | Ok(()) |
| 540 | } |
| 541 | |
| 542 | /// Full graph read through the existing owner Engine and session checkpoint. |
| 543 | /// It never publishes an alias or becomes a second journal writer. |
| 544 | pub(super) async fn snapshot_thread_history( |
| 545 | State(state): State<RuntimeApiState>, |
| 546 | axum::extract::Path(id): axum::extract::Path<String>, |
| 547 | ) -> Result<Json<codewhale_protocol::CanonicalThreadSnapshot>, ApiError> { |
| 548 | let _admission = state.runtime_threads.session_checkpoint_guard().await; |
| 549 | snapshot_in_owner(state, id).await.map(Json) |
| 550 | } |
| 551 | |
| 552 | async fn snapshot_in_owner( |
| 553 | state: RuntimeApiState, |
| 554 | id: String, |
| 555 | ) -> Result<codewhale_protocol::CanonicalThreadSnapshot, ApiError> { |
| 556 | snapshot_in_runtime(&state.runtime_threads, &state.sessions_dir, id).await |
| 557 | } |
| 558 | |
| 559 | async fn snapshot_in_runtime( |
| 560 | runtime: &Arc<RuntimeThreadManager>, |
| 561 | sessions_dir: &Path, |
| 562 | id: String, |
| 563 | ) -> Result<codewhale_protocol::CanonicalThreadSnapshot, ApiError> { |
| 564 | let runtime = Arc::clone(runtime); |
| 565 | let thread = runtime |
| 566 | .get_thread(&id) |
| 567 | .await |
| 568 | .map_err(super::map_thread_err)?; |
| 569 | let bound_id = thread.session_id.clone(); |
| 570 | let expected_binding = runtime.session_store_binding(); |
| 571 | let document = if let Some(session_id) = bound_id.clone() { |
| 572 | let sessions_dir = sessions_dir.to_path_buf(); |
| 573 | let checkpoint = thread.saved_session_checkpoint.clone(); |
| 574 | let binding = expected_binding.clone(); |
| 575 | let workspace = thread.workspace.clone(); |
| 576 | Some( |
| 577 | history_owner_work(move || { |
| 578 | let manager = SessionManager::new(sessions_dir)?; |
| 579 | let _lease = manager.reserve_session_for_external_write(&session_id)?; |
| 580 | let document = manager |
| 581 | .load_session_snapshot_bounded(&session_id, MAX_CANONICAL_HISTORY_BYTES)?; |
| 582 | ensure!( |
| 583 | document.metadata.workspace == workspace, |
| 584 | "saved history workspace differs from its held thread" |
| 585 | ); |
| 586 | if let Some(saved_binding) = document.metadata.runtime_store.as_ref() { |
| 587 | ensure!( |
| 588 | saved_binding == &binding, |
| 589 | "saved history belongs to a different Runtime store" |
| 590 | ); |
| 591 | } |
| 592 | let checkpoint = checkpoint |
| 593 | .ok_or_else(|| anyhow!("bound history has no verifiable checkpoint"))?; |
| 594 | ensure!( |
| 595 | crate::runtime_threads::checkpoint_prefix_len(&checkpoint, &document.messages)? |
| 596 | .is_some(), |
| 597 | "bound full history checkpoint changed; recovery required" |
| 598 | ); |
| 599 | let digest = saved_document_digest(&document)?; |
| 600 | Ok((document, digest, manager.load_session_goal(&session_id)?)) |
| 601 | }) |
| 602 | .await |
| 603 | .map_err(|error| ApiError::conflict(error.to_string()))?, |
| 604 | ) |
| 605 | } else { |
| 606 | None |
| 607 | }; |
| 608 | // The snapshot is taken on the one existing Engine mailbox. A saved prefix |
| 609 | // can lag a live turn, so merge that actual projection in memory while |
| 610 | // retaining all prior branches. No read writes or repairs the saved file. |
| 611 | let engine = runtime |
| 612 | .get_engine(&id) |
| 613 | .await |
| 614 | .map_err(super::map_thread_err)?; |
| 615 | let snapshot = engine |
| 616 | .get_session_snapshot() |
| 617 | .await |
| 618 | .map_err(|error| ApiError::internal(error.to_string()))?; |
| 619 | let response = history_owner_work(move || { |
| 620 | let persisted_entry_count = document |
| 621 | .as_ref() |
| 622 | .and_then(|(saved, _, _)| saved.journal.as_ref()) |
| 623 | .map_or(0, |journal| journal.entries.len()); |
| 624 | let previous_updated_at = document |
| 625 | .as_ref() |
| 626 | .map(|(saved, _, _)| saved.metadata.updated_at); |
| 627 | let has_projection_delta = document |
| 628 | .as_ref() |
| 629 | .is_none_or(|(saved, _, _)| saved.messages != snapshot.messages); |
| 630 | let source_goal_digest = |
| 631 | session_goal_digest(&document.as_ref().and_then(|(_, _, goal)| goal.clone()))?; |
| 632 | let persisted_document_digest = document.as_ref().map(|(_, digest, _)| digest.clone()); |
| 633 | let mut session = match document { |
| 634 | Some((existing, _, _)) => crate::session_manager::update_session( |
| 635 | existing, |
| 636 | &snapshot.messages, |
| 637 | snapshot.total_tokens, |
| 638 | snapshot.system_prompt.as_ref(), |
| 639 | ), |
| 640 | None => crate::session_manager::create_saved_session_with_id_and_mode( |
| 641 | snapshot.session_id.clone(), |
| 642 | &snapshot.messages, |
| 643 | &snapshot.model, |
| 644 | &snapshot.workspace, |
| 645 | snapshot.total_tokens, |
| 646 | snapshot.system_prompt.as_ref(), |
| 647 | Some(&snapshot.mode), |
| 648 | ), |
| 649 | }; |
| 650 | // The read projection uses the actual thread boundary, rather than |
| 651 | // fresh UUIDs and the reader's wall clock. Re-reading unchanged Engine |
| 652 | // content must not fabricate a changed full-history digest. |
| 653 | stable_projection_entries(&mut session, persisted_entry_count, &thread)?; |
| 654 | if previous_updated_at.is_none() { |
| 655 | session.metadata.created_at = thread.created_at; |
| 656 | } |
| 657 | session.metadata.updated_at = if has_projection_delta { |
| 658 | thread.updated_at |
| 659 | } else { |
| 660 | previous_updated_at.unwrap_or(thread.updated_at) |
| 661 | }; |
| 662 | session.metadata.model = snapshot.model; |
| 663 | session.metadata.set_model_provider_route( |
| 664 | &snapshot.model_provider, |
| 665 | snapshot.model_provider_id.as_deref(), |
| 666 | ); |
| 667 | session.metadata.runtime_store = Some(expected_binding.clone()); |
| 668 | let graph = session |
| 669 | .journal |
| 670 | .as_ref() |
| 671 | .ok_or_else(|| anyhow!("full journal is absent"))?; |
| 672 | ensure!( |
| 673 | graph.entries.len() <= MAX_CANONICAL_HISTORY_ENTRIES, |
| 674 | "full history exceeds entry transport bound; source retained" |
| 675 | ); |
| 676 | // Measure before constructing the Value allocation. Refuse the complete |
| 677 | // result rather than truncating branches or returning a partial graph. |
| 678 | let mut size = HistorySizeBound(MAX_CANONICAL_HISTORY_BYTES); |
| 679 | serde_json::to_writer(&mut size, &session)?; |
| 680 | let response = codewhale_protocol::CanonicalThreadSnapshot { |
| 681 | version: 1, |
| 682 | data_dir: expected_binding.data_dir, |
| 683 | execution_scope: expected_binding.execution_scope, |
| 684 | runtime_thread_id: id, |
| 685 | saved_session_id: bound_id, |
| 686 | saved_document_digest: persisted_document_digest, |
| 687 | document_digest: history_source_digest(&session, &source_goal_digest)?, |
| 688 | session_goal_digest: source_goal_digest, |
| 689 | session: serde_json::to_value(session)?, |
| 690 | }; |
| 691 | let mut size = HistorySizeBound(MAX_CANONICAL_HISTORY_BYTES); |
| 692 | serde_json::to_writer(&mut size, &response)?; |
| 693 | Ok(response) |
| 694 | }) |
| 695 | .await |
| 696 | .map_err(|error| ApiError::conflict(error.to_string()))?; |
| 697 | Ok(response) |
| 698 | } |
| 699 | |
| 700 | fn stable_projection_entries( |
| 701 | session: &mut SavedSession, |
| 702 | retained_count: usize, |
| 703 | thread: &crate::runtime_threads::ThreadRecord, |
| 704 | ) -> Result<()> { |
| 705 | let journal = session |
| 706 | .journal |
| 707 | .as_mut() |
| 708 | .ok_or_else(|| anyhow!("full journal is absent"))?; |
| 709 | let mut ids = HashMap::new(); |
| 710 | for (index, entry) in journal.entries.iter_mut().enumerate().skip(retained_count) { |
| 711 | let old = entry.id.clone(); |
| 712 | let digest = crate::hashing::sha256_hex( |
| 713 | crate::client::canonical_json(&serde_json::to_value(&entry.kind)?).as_bytes(), |
| 714 | ); |
| 715 | entry.id = format!( |
| 716 | "projection:{}:{}:{index}:{digest}", |
| 717 | thread.id, |
| 718 | thread.latest_turn_id.as_deref().unwrap_or("initial") |
| 719 | ); |
| 720 | entry.created_at = thread.updated_at; |
| 721 | ids.insert(old, entry.id.clone()); |
| 722 | } |
| 723 | for entry in journal.entries.iter_mut().skip(retained_count) { |
| 724 | if let Some(id) = entry.parent_id.as_mut() |
| 725 | && let Some(replacement) = ids.get(id) |
| 726 | { |
| 727 | *id = replacement.clone(); |
| 728 | } |
| 729 | } |
| 730 | if let Some(leaf) = journal.leaf_id.as_mut() |
| 731 | && let Some(replacement) = ids.get(leaf) |
| 732 | { |
| 733 | *leaf = replacement.clone(); |
| 734 | } |
| 735 | session.leaf_id = journal.leaf_id.clone(); |
| 736 | Ok(()) |
| 737 | } |
| 738 | |
| 739 | pub(crate) fn saved_document_digest(session: &SavedSession) -> Result<String> { |
| 740 | let mut size = HistorySizeBound(MAX_CANONICAL_HISTORY_BYTES); |
| 741 | serde_json::to_writer(&mut size, session)?; |
| 742 | Ok(crate::hashing::sha256_hex( |
| 743 | crate::client::canonical_json(&serde_json::to_value(session)?).as_bytes(), |
| 744 | )) |
| 745 | } |
| 746 | |
| 747 | pub(super) async fn mutate_thread_history( |
| 748 | State(state): State<RuntimeApiState>, |
| 749 | Json(request): Json<CanonicalThreadMutationRequest>, |
| 750 | ) -> Result<Json<CanonicalThreadReceipt>, ApiError> { |
| 751 | mutate_thread_history_in_runtime( |
| 752 | &state.runtime_threads, |
| 753 | &state.sessions_dir, |
| 754 | state.config_path.as_deref(), |
| 755 | state.config_profile.as_deref(), |
| 756 | request, |
| 757 | ) |
| 758 | .await |
| 759 | .map(Json) |
| 760 | .map_err(|error| ApiError::conflict(error.to_string())) |
| 761 | } |
| 762 | |
| 763 | /// The HTTP frontend and the inactive local mounted handoff invoke this same |
| 764 | /// actual held manager. It creates no transport, guest manager or policy owner. |
| 765 | pub(crate) async fn mutate_thread_history_in_runtime( |
| 766 | runtime: &Arc<RuntimeThreadManager>, |
| 767 | sessions_dir: &Path, |
| 768 | config_path: Option<&Path>, |
| 769 | config_profile: Option<&str>, |
| 770 | request: CanonicalThreadMutationRequest, |
| 771 | ) -> Result<CanonicalThreadReceipt> { |
| 772 | let binding = runtime.session_store_binding(); |
| 773 | ensure!( |
| 774 | request.version == 1 |
| 775 | && request.expected_data_dir == binding.data_dir |
| 776 | && request.expected_execution_scope == binding.execution_scope, |
| 777 | "canonical mutation belongs to a different held owner store" |
| 778 | ); |
| 779 | ensure!( |
| 780 | !request.operation_key.is_empty() |
| 781 | && request.operation_key.len() <= 128 |
| 782 | && !request.operation_key.chars().any(char::is_control), |
| 783 | "invalid canonical operation key" |
| 784 | ); |
| 785 | let mut size = HistorySizeBound(MAX_CANONICAL_HISTORY_BYTES); |
| 786 | serde_json::to_writer(&mut size, &request)?; |
| 787 | let admission = runtime.try_history_import_guard()?; |
| 788 | let runtime = Arc::clone(runtime); |
| 789 | let sessions_dir = sessions_dir.to_path_buf(); |
| 790 | let config_path = config_path.map(Path::to_path_buf); |
| 791 | let config_profile = config_profile.map(str::to_string); |
| 792 | // Cancellation of a socket/HTTP waiter cannot release admission or abandon |
| 793 | // the reserved write. The caller retries only the same captured intent. |
| 794 | tokio::spawn(async move { |
| 795 | let _admission = admission; |
| 796 | mutate_in_owner(runtime, sessions_dir, config_path, config_profile, request).await |
| 797 | }) |
| 798 | .await |
| 799 | .context("canonical operation outcome is uncertain; retain and retry the same operation key")? |
| 800 | } |
| 801 | |
| 802 | fn journal_digest(journal: &SessionJournal) -> Result<String> { |
| 803 | Ok(crate::hashing::sha256_hex( |
| 804 | crate::client::canonical_json(&serde_json::to_value(journal)?).as_bytes(), |
| 805 | )) |
| 806 | } |
| 807 | |
| 808 | pub(crate) fn session_goal_digest( |
| 809 | goal: &Option<crate::session_manager::SessionGoalState>, |
| 810 | ) -> Result<String> { |
| 811 | Ok(crate::hashing::sha256_hex( |
| 812 | crate::client::canonical_json(&serde_json::to_value(goal)?).as_bytes(), |
| 813 | )) |
| 814 | } |
| 815 | |
| 816 | fn history_source_digest(session: &SavedSession, goal_digest: &str) -> Result<String> { |
| 817 | Ok(crate::hashing::sha256_hex( |
| 818 | format!( |
| 819 | "codewhale:full-history-source:v1\0{}\0{goal_digest}", |
| 820 | saved_document_digest(session)? |
| 821 | ) |
| 822 | .as_bytes(), |
| 823 | )) |
| 824 | } |
| 825 | |
| 826 | fn forked_session_goal( |
| 827 | mut goal: Option<crate::session_manager::SessionGoalState>, |
| 828 | ) -> Option<crate::session_manager::SessionGoalState> { |
| 829 | if let Some(goal) = goal.as_mut() |
| 830 | && goal.status == crate::session_manager::SessionGoalStatus::Active |
| 831 | { |
| 832 | goal.status = crate::session_manager::SessionGoalStatus::Paused; |
| 833 | goal.pause_reason = None; |
| 834 | } |
| 835 | goal |
| 836 | } |
| 837 | |
| 838 | fn operation_witness(journal: &SessionJournal, workspace: &Path) -> RuntimeHistoryWitness { |
| 839 | RuntimeHistoryWitness { |
| 840 | entries_len: journal.entries.len(), |
| 841 | leaf_id: journal.leaf_id.clone(), |
| 842 | schema_version: journal.schema_version, |
| 843 | spawn_depth: journal.spawn_depth, |
| 844 | seed_from_message_index: 0, |
| 845 | workspace: workspace.to_path_buf(), |
| 846 | } |
| 847 | } |
| 848 | |
| 849 | fn verify_operation_checkpoint( |
| 850 | manager: &SessionManager, |
| 851 | thread: &crate::runtime_threads::ThreadRecord, |
| 852 | binding: &crate::runtime_threads::RuntimeStoreBinding, |
| 853 | operation: &RuntimeHistoryOperation, |
| 854 | ) -> Result<()> { |
| 855 | let id = thread |
| 856 | .session_id |
| 857 | .as_deref() |
| 858 | .ok_or_else(|| anyhow!("canonical operation target lost its session"))?; |
| 859 | ensure!( |
| 860 | id == operation.receipt.session_id, |
| 861 | "canonical operation session changed" |
| 862 | ); |
| 863 | let _lease = manager.reserve_session_for_external_write(id)?; |
| 864 | let observed = manager.load_session_snapshot_bounded(id, MAX_CANONICAL_HISTORY_BYTES)?; |
| 865 | ensure!( |
| 866 | observed.metadata.runtime_store.as_ref() == Some(binding) |
| 867 | && observed.metadata.workspace == thread.workspace, |
| 868 | "canonical operation document binding changed" |
| 869 | ); |
| 870 | let checkpoint = thread |
| 871 | .saved_session_checkpoint |
| 872 | .as_ref() |
| 873 | .ok_or_else(|| anyhow!("canonical operation checkpoint is absent"))?; |
| 874 | ensure!( |
| 875 | crate::runtime_threads::checkpoint_prefix_len(checkpoint, &observed.messages)?.is_some(), |
| 876 | "canonical operation checkpoint differs from its document" |
| 877 | ); |
| 878 | verify_operation_journal(&observed, operation) |
| 879 | } |
| 880 | |
| 881 | fn verify_operation_journal( |
| 882 | observed: &SavedSession, |
| 883 | operation: &RuntimeHistoryOperation, |
| 884 | ) -> Result<()> { |
| 885 | let witness = operation |
| 886 | .journal_witness |
| 887 | .as_ref() |
| 888 | .ok_or_else(|| anyhow!("canonical operation witness missing; recovery required"))?; |
| 889 | let journal = observed |
| 890 | .journal |
| 891 | .as_ref() |
| 892 | .ok_or_else(|| anyhow!("canonical full graph missing"))?; |
| 893 | ensure!( |
| 894 | journal.entries.len() >= witness.entries_len |
| 895 | && journal.schema_version == witness.schema_version |
| 896 | && journal.spawn_depth == witness.spawn_depth, |
| 897 | "canonical operation full graph shrank or changed schema" |
| 898 | ); |
| 899 | let original = SessionJournal { |
| 900 | entries: journal.entries[..witness.entries_len].to_vec(), |
| 901 | leaf_id: witness.leaf_id.clone(), |
| 902 | schema_version: witness.schema_version, |
| 903 | spawn_depth: witness.spawn_depth, |
| 904 | }; |
| 905 | ensure!( |
| 906 | journal_digest(&original)? == operation.receipt.history_digest, |
| 907 | "canonical operation branches changed; recovery required" |
| 908 | ); |
| 909 | Ok(()) |
| 910 | } |
| 911 | |
| 912 | /// Complete only the target whose bytes and process checkpoint were prepared by |
| 913 | /// this retained intent. Missing preparation never authorizes source recreation. |
| 914 | async fn settle_prepared_history_operation( |
| 915 | runtime: &Arc<RuntimeThreadManager>, |
| 916 | sessions_dir: &Path, |
| 917 | operation: &RuntimeHistoryOperation, |
| 918 | workspace: &Path, |
| 919 | ) -> Result<Option<CanonicalThreadReceipt>> { |
| 920 | let witness = operation |
| 921 | .journal_witness |
| 922 | .as_ref() |
| 923 | .ok_or_else(|| anyhow!("prepared operation lacks its full graph witness"))?; |
| 924 | ensure!( |
| 925 | witness.workspace == workspace, |
| 926 | "operation selected workspace changed" |
| 927 | ); |
| 928 | let captured = Arc::clone(runtime); |
| 929 | let id = operation.receipt.runtime_thread_id.clone(); |
| 930 | let Some(thread) = history_owner_work(move || captured.history_operation_thread(&id)).await? |
| 931 | else { |
| 932 | return Ok(None); |
| 933 | }; |
| 934 | |
| 935 | ensure!( |
| 936 | thread.workspace == workspace, |
| 937 | "reserved target workspace changed" |
| 938 | ); |
| 939 | let detail = runtime.get_thread_detail(&thread.id).await?; |
| 940 | ensure!( |
| 941 | !super::sessions::thread_detail_has_live_work(&detail), |
| 942 | "reserved target has pending work" |
| 943 | ); |
| 944 | let dir = sessions_dir.to_path_buf(); |
| 945 | let binding = runtime.session_store_binding(); |
| 946 | let expected = operation.clone(); |
| 947 | let selected_workspace = workspace.to_path_buf(); |
| 948 | let saved = history_owner_work(move || { |
| 949 | let manager = SessionManager::new(dir)?; |
| 950 | let lease = manager.reserve_session_for_external_write(&expected.receipt.session_id)?; |
| 951 | let saved = match manager.load_session_snapshot_bounded( |
| 952 | &expected.receipt.session_id, |
| 953 | MAX_CANONICAL_HISTORY_BYTES, |
| 954 | ) { |
| 955 | Ok(saved) => saved, |
| 956 | Err(error) if error.kind() == std::io::ErrorKind::NotFound => return Ok(None), |
| 957 | Err(error) => return Err(error.into()), |
| 958 | }; |
| 959 | // An old source document is not the new prepared publication. |
| 960 | // The original source CAS below still decides whether it can be retried. |
| 961 | if expected.target_document_digest.as_ref() != Some(&saved_document_digest(&saved)?) { |
| 962 | return Ok(None); |
| 963 | } |
| 964 | ensure!( |
| 965 | saved.metadata.runtime_store.as_ref() == Some(&binding) |
| 966 | && saved.metadata.workspace == selected_workspace, |
| 967 | "reserved saved document binding changed" |
| 968 | ); |
| 969 | if let Some(digest) = expected.session_goal_target_digest.as_ref() { |
| 970 | ensure!( |
| 971 | session_goal_digest(&manager.load_session_goal(&expected.receipt.session_id)?)? |
| 972 | == *digest, |
| 973 | "prepared local goal sidecar changed; no recovery write admitted" |
| 974 | ); |
| 975 | } |
| 976 | verify_operation_journal(&saved, &expected)?; |
| 977 | let witness = expected |
| 978 | .journal_witness |
| 979 | .as_ref() |
| 980 | .ok_or_else(|| anyhow!("operation witness absent"))?; |
| 981 | let journal = saved |
| 982 | .journal |
| 983 | .as_ref() |
| 984 | .ok_or_else(|| anyhow!("prepared graph is absent"))?; |
| 985 | ensure!( |
| 986 | journal.entries.len() == witness.entries_len && journal.leaf_id == witness.leaf_id, |
| 987 | "uncommitted target acquired a successor; no replay is safe" |
| 988 | ); |
| 989 | Ok(Some((saved, lease))) |
| 990 | }) |
| 991 | .await?; |
| 992 | if let Some((saved, _target_lease)) = saved { |
| 993 | let from = witness.seed_from_message_index; |
| 994 | ensure!( |
| 995 | from <= saved.messages.len(), |
| 996 | "history suffix boundary is invalid" |
| 997 | ); |
| 998 | let checkpoint = thread |
| 999 | .saved_session_checkpoint |
| 1000 | .as_ref() |
| 1001 | .map(|checkpoint| { |
| 1002 | crate::runtime_threads::checkpoint_prefix_len(checkpoint, &saved.messages) |
| 1003 | }) |
| 1004 | .transpose()? |
| 1005 | .flatten(); |
| 1006 | if checkpoint != Some(saved.messages.len()) { |
| 1007 | if from == 0 { |
| 1008 | ensure!( |
| 1009 | detail.turns.is_empty() && detail.items.is_empty(), |
| 1010 | "reserved target process history is unproven; recovery required" |
| 1011 | ); |
| 1012 | } else { |
| 1013 | ensure!( |
| 1014 | checkpoint == Some(from) |
| 1015 | && thread.session_id.as_deref() == Some(saved.metadata.id.as_str()), |
| 1016 | "reserved Resume prefix changed; recovery required" |
| 1017 | ); |
| 1018 | } |
| 1019 | runtime |
| 1020 | .seed_thread_from_messages_with_history_operation( |
| 1021 | &thread.id, |
| 1022 | &saved.messages[from..], |
| 1023 | Some(operation), |
| 1024 | &saved.messages, |
| 1025 | ) |
| 1026 | .await?; |
| 1027 | } |
| 1028 | runtime |
| 1029 | .set_thread_session_checkpoint(&thread.id, &saved) |
| 1030 | .await?; |
| 1031 | runtime |
| 1032 | .synchronize_history_operation(&thread.id, &saved) |
| 1033 | .await?; |
| 1034 | let manager = Arc::clone(runtime); |
| 1035 | let operation = operation.clone(); |
| 1036 | return history_owner_work(move || manager.commit_history_operation(operation)) |
| 1037 | .await |
| 1038 | .map(Some); |
| 1039 | } |
| 1040 | Ok(None) |
| 1041 | } |
| 1042 | |
| 1043 | async fn mutate_in_owner( |
| 1044 | runtime: Arc<RuntimeThreadManager>, |
| 1045 | sessions_dir: std::path::PathBuf, |
| 1046 | config_path: Option<std::path::PathBuf>, |
| 1047 | config_profile: Option<String>, |
| 1048 | request: CanonicalThreadMutationRequest, |
| 1049 | ) -> Result<CanonicalThreadReceipt> { |
| 1050 | let request_digest = crate::hashing::sha256_hex( |
| 1051 | crate::client::canonical_json(&serde_json::to_value(&request)?).as_bytes(), |
| 1052 | ); |
| 1053 | let lookup_runtime = Arc::clone(&runtime); |
| 1054 | let key = request.operation_key.clone(); |
| 1055 | let digest = request_digest.clone(); |
| 1056 | let reserved = |
| 1057 | history_owner_work(move || lookup_runtime.lookup_history_operation(&key, &digest)).await?; |
| 1058 | if let Some(operation) = reserved |
| 1059 | .as_ref() |
| 1060 | .filter(|operation| operation.journal_witness.is_some()) |
| 1061 | { |
| 1062 | let witness = operation.journal_witness.as_ref().ok_or_else(|| { |
| 1063 | anyhow!("operation scope witness absent; recover the retained intent") |
| 1064 | })?; |
| 1065 | ensure!( |
| 1066 | witness.workspace == request.workspace, |
| 1067 | "operation selected workspace changed" |
| 1068 | ); |
| 1069 | let thread_id = operation.receipt.runtime_thread_id.clone(); |
| 1070 | let captured = Arc::clone(&runtime); |
| 1071 | let thread = |
| 1072 | history_owner_work(move || captured.history_operation_thread(&thread_id)).await?; |
| 1073 | if operation.committed { |
| 1074 | let thread = thread.ok_or_else(|| anyhow!("committed canonical target is missing"))?; |
| 1075 | ensure!( |
| 1076 | thread.workspace == request.workspace, |
| 1077 | "canonical operation workspace changed" |
| 1078 | ); |
| 1079 | let manager_dir = sessions_dir.clone(); |
| 1080 | let binding = runtime.session_store_binding(); |
| 1081 | let expected = operation.clone(); |
| 1082 | history_owner_work(move || { |
| 1083 | verify_operation_checkpoint( |
| 1084 | &SessionManager::new(manager_dir)?, |
| 1085 | &thread, |
| 1086 | &binding, |
| 1087 | &expected, |
| 1088 | ) |
| 1089 | }) |
| 1090 | .await?; |
| 1091 | return Ok(operation.receipt.clone()); |
| 1092 | } |
| 1093 | if let Some(receipt) = settle_prepared_history_operation( |
| 1094 | &runtime, |
| 1095 | &sessions_dir, |
| 1096 | operation, |
| 1097 | &request.workspace, |
| 1098 | ) |
| 1099 | .await? |
| 1100 | { |
| 1101 | return Ok(receipt); |
| 1102 | } |
| 1103 | } |
| 1104 | let is_resume = matches!(&request.mutation, CanonicalThreadMutation::Resume { .. }); |
| 1105 | let mut create = CreateThreadRequest::default(); |
| 1106 | let mut source_thread = None; |
| 1107 | let mut source_disk_digest = None; |
| 1108 | let mut source_goal = None; |
| 1109 | let mut source = match &request.mutation { |
| 1110 | CanonicalThreadMutation::Create { config } => { |
| 1111 | create = serde_json::from_value(config.clone()) |
| 1112 | .context("invalid create-thread configuration")?; |
| 1113 | // The accepted existing shape has no credentials. Unknown fields |
| 1114 | // cannot masquerade as an ignored policy or operation parameter. |
| 1115 | let encoded = serde_json::to_value(&create)?; |
| 1116 | ensure!( |
| 1117 | config.as_object().is_some_and(|fields| fields |
| 1118 | .iter() |
| 1119 | .all(|(key, value)| encoded.get(key) == Some(value))), |
| 1120 | "unsupported create-thread field" |
| 1121 | ); |
| 1122 | ensure!( |
| 1123 | create |
| 1124 | .workspace |
| 1125 | .as_ref() |
| 1126 | .is_none_or(|workspace| workspace == &request.workspace), |
| 1127 | "create configuration workspace differs from selected admission" |
| 1128 | ); |
| 1129 | None |
| 1130 | } |
| 1131 | CanonicalThreadMutation::Resume { source, .. } |
| 1132 | | CanonicalThreadMutation::Fork { source, .. } => Some(match source { |
| 1133 | CanonicalHistorySource::Thread { |
| 1134 | runtime_thread_id, |
| 1135 | expected_document_digest, |
| 1136 | } => { |
| 1137 | let thread = runtime.get_thread(runtime_thread_id).await?; |
| 1138 | ensure!( |
| 1139 | !is_resume || thread.workspace == request.workspace, |
| 1140 | "Resume source workspace differs from selected admission" |
| 1141 | ); |
| 1142 | let detail = runtime.get_thread_detail(runtime_thread_id).await?; |
| 1143 | ensure!( |
| 1144 | !super::sessions::thread_detail_has_live_work(&detail), |
| 1145 | "selected history has pending work; wait before resume or fork" |
| 1146 | ); |
| 1147 | let snapshot = |
| 1148 | snapshot_in_runtime(&runtime, &sessions_dir, runtime_thread_id.clone()) |
| 1149 | .await |
| 1150 | .map_err(|error| anyhow!(error.message))?; |
| 1151 | ensure!( |
| 1152 | &snapshot.document_digest == expected_document_digest, |
| 1153 | "selected full history changed before canonical admission" |
| 1154 | ); |
| 1155 | source_disk_digest = snapshot.saved_document_digest; |
| 1156 | let saved: SavedSession = serde_json::from_value(snapshot.session)?; |
| 1157 | let id = saved.metadata.id.clone(); |
| 1158 | let dir = sessions_dir.clone(); |
| 1159 | let expected = snapshot.session_goal_digest; |
| 1160 | source_goal = history_owner_work(move || { |
| 1161 | let manager = SessionManager::new(dir)?; |
| 1162 | let _lease = manager.reserve_session_for_external_write(&id)?; |
| 1163 | let goal = manager.load_session_goal(&id)?; |
| 1164 | ensure!( |
| 1165 | session_goal_digest(&goal)? == expected, |
| 1166 | "source local goal changed before admission" |
| 1167 | ); |
| 1168 | Ok(goal) |
| 1169 | }) |
| 1170 | .await?; |
| 1171 | source_thread = Some(thread); |
| 1172 | saved |
| 1173 | } |
| 1174 | CanonicalHistorySource::SavedSession { |
| 1175 | session, |
| 1176 | expected_document_digest, |
| 1177 | } => { |
| 1178 | let proposed: SavedSession = serde_json::from_value(session.clone())?; |
| 1179 | ensure!( |
| 1180 | serde_json::to_value(&proposed)? == *session, |
| 1181 | "saved history contains unsupported fields; source retained" |
| 1182 | ); |
| 1183 | let id = proposed.metadata.id.clone(); |
| 1184 | let dir = sessions_dir.clone(); |
| 1185 | let expected = expected_document_digest.clone(); |
| 1186 | let binding = runtime.session_store_binding(); |
| 1187 | let selected_workspace = request.workspace.clone(); |
| 1188 | let (observed, goal) = history_owner_work(move || { |
| 1189 | let manager = SessionManager::new(dir)?; |
| 1190 | let _lease = manager.reserve_session_for_external_write(&id)?; |
| 1191 | let observed = |
| 1192 | manager.load_session_snapshot_bounded(&id, MAX_CANONICAL_HISTORY_BYTES)?; |
| 1193 | ensure!( |
| 1194 | saved_document_digest(&observed)? == expected, |
| 1195 | "protected saved document changed before admission" |
| 1196 | ); |
| 1197 | ensure!( |
| 1198 | (!is_resume || observed.metadata.workspace == selected_workspace) |
| 1199 | && observed |
| 1200 | .metadata |
| 1201 | .runtime_store |
| 1202 | .as_ref() |
| 1203 | .is_none_or(|saved| saved == &binding), |
| 1204 | "saved history belongs to another workspace or owner store" |
| 1205 | ); |
| 1206 | Ok((observed, manager.load_session_goal(&id)?)) |
| 1207 | }) |
| 1208 | .await?; |
| 1209 | ensure!( |
| 1210 | saved_document_digest(&proposed)? == saved_document_digest(&observed)?, |
| 1211 | "proposed history differs from protected saved document" |
| 1212 | ); |
| 1213 | source_goal = goal; |
| 1214 | source_disk_digest = Some(expected_document_digest.clone()); |
| 1215 | let candidates = runtime |
| 1216 | .list_threads(ThreadListFilter::IncludeArchived, None) |
| 1217 | .await? |
| 1218 | .into_iter() |
| 1219 | .filter(|thread| { |
| 1220 | thread.session_id.as_deref() == Some(observed.metadata.id.as_str()) |
| 1221 | }) |
| 1222 | .collect::<Vec<_>>(); |
| 1223 | ensure!( |
| 1224 | candidates.len() <= 1, |
| 1225 | "saved history has multiple canonical holders; explicit target required" |
| 1226 | ); |
| 1227 | if let Some(thread) = candidates.into_iter().next() { |
| 1228 | ensure!( |
| 1229 | thread.workspace == observed.metadata.workspace, |
| 1230 | "saved history holder source workspace changed" |
| 1231 | ); |
| 1232 | let detail = runtime.get_thread_detail(&thread.id).await?; |
| 1233 | ensure!( |
| 1234 | !super::sessions::thread_detail_has_live_work(&detail), |
| 1235 | "saved history holder has pending work" |
| 1236 | ); |
| 1237 | let checkpoint = thread |
| 1238 | .saved_session_checkpoint |
| 1239 | .as_ref() |
| 1240 | .ok_or_else(|| anyhow!("saved holder checkpoint is missing"))?; |
| 1241 | // The checkpoint records the history the holder was |
| 1242 | // seeded with; turns the holder ran since then extend the |
| 1243 | // document past it. Like the other checkpoint guards here, |
| 1244 | // require it to cover a prefix, and let the exact |
| 1245 | // live == document check below prove that everything |
| 1246 | // after that prefix came from this holder. Requiring full |
| 1247 | // coverage refused every second resume of a continued |
| 1248 | // session. |
| 1249 | ensure!( |
| 1250 | crate::runtime_threads::checkpoint_prefix_len( |
| 1251 | checkpoint, |
| 1252 | &observed.messages |
| 1253 | )? |
| 1254 | .is_some(), |
| 1255 | "saved holder checkpoint differs from the saved history; refresh history" |
| 1256 | ); |
| 1257 | let full = snapshot_in_runtime(&runtime, &sessions_dir, thread.id.clone()) |
| 1258 | .await |
| 1259 | .map_err(|error| anyhow!(error.message))?; |
| 1260 | let live: SavedSession = serde_json::from_value(full.session)?; |
| 1261 | if live.messages == observed.messages && live.journal == observed.journal { |
| 1262 | source_thread = Some(thread); |
| 1263 | } else if live.messages.len() < observed.messages.len() |
| 1264 | && observed.messages.starts_with(&live.messages) |
| 1265 | { |
| 1266 | // After a resume the TUI runs its turns in its own |
| 1267 | // engine and saves them to the document; this holder |
| 1268 | // stayed at the history it was seeded with. It is |
| 1269 | // strictly behind the document and has no live work |
| 1270 | // (checked above), so it holds nothing the document |
| 1271 | // lacks: release its binding (receipt kept, turns |
| 1272 | // kept) and mount the document fresh. Refusing here |
| 1273 | // made every continued session impossible to resume |
| 1274 | // a second time. |
| 1275 | runtime.release_stale_session_holder( |
| 1276 | &thread, |
| 1277 | "the saved document advanced past this thread after a resume", |
| 1278 | )?; |
| 1279 | } else { |
| 1280 | bail!( |
| 1281 | "saved holder has a successor outside the selected document; refresh history" |
| 1282 | ); |
| 1283 | } |
| 1284 | } |
| 1285 | observed |
| 1286 | } |
| 1287 | }), |
| 1288 | }; |
| 1289 | let options = match &request.mutation { |
| 1290 | CanonicalThreadMutation::Resume { options, .. } |
| 1291 | | CanonicalThreadMutation::Fork { options, .. } => options.clone(), |
| 1292 | CanonicalThreadMutation::Create { .. } => CanonicalHistoryOptions::default(), |
| 1293 | }; |
| 1294 | if matches!( |
| 1295 | &request.mutation, |
| 1296 | CanonicalThreadMutation::Resume { |
| 1297 | source: CanonicalHistorySource::SavedSession { .. }, |
| 1298 | .. |
| 1299 | } | CanonicalThreadMutation::Fork { |
| 1300 | source: CanonicalHistorySource::SavedSession { .. }, |
| 1301 | .. |
| 1302 | } |
| 1303 | ) { |
| 1304 | ensure!( |
| 1305 | options |
| 1306 | .expected_session_goal_digest |
| 1307 | .as_ref() |
| 1308 | .is_some_and(|expected| session_goal_digest(&source_goal) |
| 1309 | .is_ok_and(|observed| &observed == expected)) |
| 1310 | || (options.expected_session_goal_digest.is_none() && source_goal.is_none()), |
| 1311 | "saved source local goal witness is absent or changed; source retained" |
| 1312 | ); |
| 1313 | } |
| 1314 | let captured_source_goal_digest = session_goal_digest(&source_goal)?; |
| 1315 | let target_goal = if is_resume { |
| 1316 | source_goal.clone() |
| 1317 | } else { |
| 1318 | forked_session_goal(source_goal.clone()) |
| 1319 | }; |
| 1320 | let prepared_target_goal_digest = session_goal_digest(&target_goal)?; |
| 1321 | let base_message_count = source.as_ref().map_or(0, |session| session.messages.len()); |
| 1322 | if let Some(path) = options.source_path.as_ref() { |
| 1323 | let session = source |
| 1324 | .as_ref() |
| 1325 | .ok_or_else(|| anyhow!("source path requires protected saved history"))?; |
| 1326 | ensure!( |
| 1327 | *path == sessions_dir.join(format!("{}.json", session.metadata.id)), |
| 1328 | "source path does not name the protected selected session; opaque legacy source retained" |
| 1329 | ); |
| 1330 | } |
| 1331 | let updates = decode_history_overrides( |
| 1332 | &options.overrides, |
| 1333 | &runtime.read_config(), |
| 1334 | &request.workspace, |
| 1335 | )?; |
| 1336 | if let Some(session) = source.as_mut() { |
| 1337 | append_offered_history(session, &options.offered_history, &request.operation_key)?; |
| 1338 | } else { |
| 1339 | ensure!( |
| 1340 | options.offered_history.is_empty(), |
| 1341 | "offered history requires a full source" |
| 1342 | ); |
| 1343 | } |
| 1344 | if let Some(session) = source.as_mut() { |
| 1345 | let journal = session |
| 1346 | .journal |
| 1347 | .as_ref() |
| 1348 | .ok_or_else(|| anyhow!("saved full journal is absent; source retained"))?; |
| 1349 | if let CanonicalThreadMutation::Fork { |
| 1350 | selected_entry_id, .. |
| 1351 | } = &request.mutation |
| 1352 | { |
| 1353 | let fork = match journal.fork_from(selected_entry_id.as_deref()) { |
| 1354 | Ok(fork) => fork, |
| 1355 | Err(error) => { |
| 1356 | // An entry a bounded TUI save archived (#6842) is not in |
| 1357 | // the document; fail closed and say where it went. |
| 1358 | let dir = sessions_dir.clone(); |
| 1359 | let id = session.metadata.id.clone(); |
| 1360 | let entry = selected_entry_id.clone(); |
| 1361 | let archived = history_owner_work(move || { |
| 1362 | let Some(entry) = entry else { |
| 1363 | return Ok(false); |
| 1364 | }; |
| 1365 | Ok(crate::session_manager::load_journal_archive(&dir, &id)? |
| 1366 | .iter() |
| 1367 | .any(|archived| archived.id == entry)) |
| 1368 | }) |
| 1369 | .await |
| 1370 | .unwrap_or(false); |
| 1371 | if archived { |
| 1372 | bail!( |
| 1373 | "{error}: the entry was moved to this session's journal archive to keep \ |
| 1374 | the saved document bounded; restore it with `/branch {}` first. \ |
| 1375 | Source retained", |
| 1376 | selected_entry_id.as_deref().unwrap_or_default() |
| 1377 | ); |
| 1378 | } |
| 1379 | return Err(anyhow::Error::msg(error)); |
| 1380 | } |
| 1381 | }; |
| 1382 | session.metadata.mark_forked_from(&session.metadata.clone()); |
| 1383 | session.metadata.spawn_depth = fork.spawn_depth; |
| 1384 | session.leaf_id = fork.leaf_id.clone(); |
| 1385 | session.messages = fork.to_messages(); |
| 1386 | session.journal = Some(fork); |
| 1387 | session.ensure_journal(); |
| 1388 | } |
| 1389 | } |
| 1390 | let journal = source |
| 1391 | .as_ref() |
| 1392 | .and_then(|session| session.journal.clone()) |
| 1393 | .unwrap_or_else(SessionJournal::new); |
| 1394 | ensure!( |
| 1395 | journal.entries.len() <= MAX_CANONICAL_HISTORY_ENTRIES, |
| 1396 | "complete graph exceeds entry bound" |
| 1397 | ); |
| 1398 | // Import's strong validator is reused without changing ordinary module |
| 1399 | // limits or creating a new parser. It rejects duplicate/cycle/unknown graph. |
| 1400 | SavedSession::import_foreign( |
| 1401 | SessionImportContainer::new("canonical-operation-validation".into(), &journal, None), |
| 1402 | request.workspace.clone(), |
| 1403 | "validation".into(), |
| 1404 | ) |
| 1405 | .map_err(anyhow::Error::msg)?; |
| 1406 | let history_digest = journal_digest(&journal)?; |
| 1407 | let mut witness = operation_witness(&journal, &request.workspace); |
| 1408 | if is_resume && source_thread.is_some() { |
| 1409 | witness.seed_from_message_index = base_message_count; |
| 1410 | } |
| 1411 | let target = if is_resume { |
| 1412 | match source_thread.as_ref() { |
| 1413 | Some(thread) => Some(( |
| 1414 | thread.id.clone(), |
| 1415 | thread |
| 1416 | .session_id |
| 1417 | .clone() |
| 1418 | .ok_or_else(|| anyhow!("resume holder has no durable session"))?, |
| 1419 | )), |
| 1420 | None => source.as_ref().map(|session| { |
| 1421 | ( |
| 1422 | format!("thr_{}", uuid::Uuid::new_v4()), |
| 1423 | session.metadata.id.clone(), |
| 1424 | ) |
| 1425 | }), |
| 1426 | } |
| 1427 | } else { |
| 1428 | None |
| 1429 | }; |
| 1430 | let association = codewhale_protocol::CanonicalThreadOperationAssociation { |
| 1431 | kind: match &request.mutation { |
| 1432 | CanonicalThreadMutation::Create { .. } => { |
| 1433 | codewhale_protocol::CanonicalThreadOperationKind::Create |
| 1434 | } |
| 1435 | CanonicalThreadMutation::Resume { .. } => { |
| 1436 | codewhale_protocol::CanonicalThreadOperationKind::Resume |
| 1437 | } |
| 1438 | CanonicalThreadMutation::Fork { .. } => { |
| 1439 | codewhale_protocol::CanonicalThreadOperationKind::Fork |
| 1440 | } |
| 1441 | }, |
| 1442 | source_runtime_thread_id: source_thread.as_ref().map(|thread| thread.id.clone()), |
| 1443 | source_session_id: source.as_ref().map(|session| session.metadata.id.clone()), |
| 1444 | }; |
| 1445 | let reserve_runtime = Arc::clone(&runtime); |
| 1446 | let key = request.operation_key.clone(); |
| 1447 | let operation = history_owner_work(move || { |
| 1448 | let operation = reserve_runtime.reserve_history_operation_for_target( |
| 1449 | &key, |
| 1450 | &request_digest, |
| 1451 | &history_digest, |
| 1452 | target |
| 1453 | .as_ref() |
| 1454 | .map(|(thread, session)| (thread.as_str(), session.as_str())), |
| 1455 | )?; |
| 1456 | reserve_runtime.bind_history_operation_witness(operation, witness, association) |
| 1457 | }) |
| 1458 | .await?; |
| 1459 | create.workspace = Some(request.workspace.clone()); |
| 1460 | if source_thread.is_none() |
| 1461 | && let Some(saved) = source.as_ref() |
| 1462 | { |
| 1463 | create.model = Some(saved.metadata.model.clone()); |
| 1464 | create.model_provider = Some(saved.metadata.model_provider.clone()); |
| 1465 | create.model_provider_id = saved.metadata.model_provider_id.clone(); |
| 1466 | create.system_prompt = saved.system_prompt.clone(); |
| 1467 | } |
| 1468 | if let Some(thread) = source_thread.as_ref() { |
| 1469 | create.model = Some(thread.model.clone()); |
| 1470 | create.model_provider = thread.model_provider.clone(); |
| 1471 | create.model_provider_id = thread.model_provider_id.clone(); |
| 1472 | create.reasoning_effort = thread.reasoning_effort.clone(); |
| 1473 | create.allowed_tools = thread.allowed_tools.clone(); |
| 1474 | create.mode = Some(thread.mode.clone()); |
| 1475 | create.permission_posture = thread.permission_posture.clone(); |
| 1476 | create.allow_shell = Some(thread.allow_shell); |
| 1477 | create.trust_mode = Some(thread.trust_mode); |
| 1478 | create.auto_approve = Some(thread.auto_approve); |
| 1479 | create.system_prompt = thread.system_prompt.clone(); |
| 1480 | } |
| 1481 | if let Some(updates) = updates.as_ref() { |
| 1482 | apply_history_create_overrides(&mut create, updates); |
| 1483 | } |
| 1484 | let lookup_runtime = Arc::clone(&runtime); |
| 1485 | let id = operation.receipt.runtime_thread_id.clone(); |
| 1486 | let mut thread = |
| 1487 | match history_owner_work(move || lookup_runtime.history_operation_thread(&id)).await? { |
| 1488 | Some(thread) => { |
| 1489 | ensure!( |
| 1490 | thread.workspace == request.workspace, |
| 1491 | "reserved target workspace changed" |
| 1492 | ); |
| 1493 | thread |
| 1494 | } |
| 1495 | None => { |
| 1496 | runtime |
| 1497 | .create_thread_with_reserved_id( |
| 1498 | create, |
| 1499 | config_path.as_deref(), |
| 1500 | config_profile.as_deref(), |
| 1501 | Some(operation.receipt.runtime_thread_id.clone()), |
| 1502 | ) |
| 1503 | .await? |
| 1504 | } |
| 1505 | }; |
| 1506 | if is_resume && let Some(updates) = updates { |
| 1507 | thread = runtime |
| 1508 | .update_thread_under_history_guard( |
| 1509 | &thread.id, |
| 1510 | updates, |
| 1511 | config_path.as_deref(), |
| 1512 | config_profile.as_deref(), |
| 1513 | ) |
| 1514 | .await?; |
| 1515 | } |
| 1516 | let source_id = source.as_ref().map(|session| session.metadata.id.clone()); |
| 1517 | let mut session = source.unwrap_or_else(|| { |
| 1518 | crate::session_manager::create_saved_session_with_id_and_mode( |
| 1519 | operation.receipt.session_id.clone(), |
| 1520 | &[], |
| 1521 | &thread.model, |
| 1522 | &thread.workspace, |
| 1523 | 0, |
| 1524 | None, |
| 1525 | Some(&thread.mode), |
| 1526 | ) |
| 1527 | }); |
| 1528 | session.metadata.id = operation.receipt.session_id.clone(); |
| 1529 | if !is_resume { |
| 1530 | session.metadata.created_at = operation.created_at; |
| 1531 | } |
| 1532 | session.metadata.updated_at = operation.created_at; |
| 1533 | session.system_prompt.clone_from(&thread.system_prompt); |
| 1534 | session.metadata.runtime_store = Some(runtime.session_store_binding()); |
| 1535 | session.metadata.workspace = thread.workspace.clone(); |
| 1536 | session.metadata.model = thread.model.clone(); |
| 1537 | session.metadata.mode = Some(thread.mode.clone()); |
| 1538 | session.metadata.set_model_provider_route( |
| 1539 | thread |
| 1540 | .model_provider |
| 1541 | .as_deref() |
| 1542 | .ok_or_else(|| anyhow!("canonical thread has no provider identity"))?, |
| 1543 | thread.model_provider_id.as_deref(), |
| 1544 | ); |
| 1545 | let document_digest = saved_document_digest(&session)?; |
| 1546 | let prepare_runtime = Arc::clone(&runtime); |
| 1547 | let operation = history_owner_work(move || { |
| 1548 | let operation = |
| 1549 | prepare_runtime.bind_history_operation_document(operation, &document_digest)?; |
| 1550 | prepare_runtime.bind_history_operation_session_goal( |
| 1551 | operation, |
| 1552 | &captured_source_goal_digest, |
| 1553 | &prepared_target_goal_digest, |
| 1554 | ) |
| 1555 | }) |
| 1556 | .await?; |
| 1557 | // Revalidate the exact source file immediately before target publication. |
| 1558 | // Both existing session leases are held until the target write settles. |
| 1559 | let dir = sessions_dir.clone(); |
| 1560 | let expected_journal = journal.clone(); |
| 1561 | let source_goal_digest = session_goal_digest(&source_goal)?; |
| 1562 | let target_goal_digest = session_goal_digest(&target_goal)?; |
| 1563 | let target_id = session.metadata.id.clone(); |
| 1564 | let (session, _source_lease, _target_lease) = history_owner_work(move || { |
| 1565 | let manager = SessionManager::new(dir)?; |
| 1566 | let source_lease = source_id |
| 1567 | .as_ref() |
| 1568 | .filter(|id| **id != target_id) |
| 1569 | .map(|id| manager.reserve_session_for_external_write(id)) |
| 1570 | .transpose()?; |
| 1571 | let target_lease = manager.reserve_session_for_external_write(&target_id)?; |
| 1572 | if let (Some(id), Some(digest)) = (source_id.as_ref(), source_disk_digest.as_ref()) { |
| 1573 | let observed = |
| 1574 | manager.load_session_snapshot_bounded(id, MAX_CANONICAL_HISTORY_BYTES)?; |
| 1575 | ensure!( |
| 1576 | session_goal_digest(&manager.load_session_goal(id)?)? == source_goal_digest, |
| 1577 | "source local goal changed before publication" |
| 1578 | ); |
| 1579 | ensure!( |
| 1580 | saved_document_digest(&observed)? == *digest, |
| 1581 | "source full document changed before publication" |
| 1582 | ); |
| 1583 | } |
| 1584 | if source_id.as_ref() != Some(&target_id) { |
| 1585 | let previous_goal = manager.load_session_goal(&target_id)?; |
| 1586 | ensure!( |
| 1587 | previous_goal.is_none() |
| 1588 | || session_goal_digest(&previous_goal)? == target_goal_digest, |
| 1589 | "reserved target has a conflicting local goal sidecar; source retained" |
| 1590 | ); |
| 1591 | } |
| 1592 | match manager.load_session_snapshot_bounded(&target_id, MAX_CANONICAL_HISTORY_BYTES) { |
| 1593 | Ok(observed) if source_id.as_ref() != Some(&target_id) => { |
| 1594 | ensure!( |
| 1595 | observed.journal.as_ref() == Some(&expected_journal) |
| 1596 | && observed.metadata.runtime_store == session.metadata.runtime_store, |
| 1597 | "reserved canonical target changed; recovery required" |
| 1598 | ); |
| 1599 | ensure!( |
| 1600 | session_goal_digest(&manager.load_session_goal(&target_id)?)? |
| 1601 | == target_goal_digest, |
| 1602 | "reserved target local goal changed; recovery required" |
| 1603 | ); |
| 1604 | Ok((observed, source_lease, target_lease)) |
| 1605 | } |
| 1606 | Err(error) if error.kind() == std::io::ErrorKind::NotFound => { |
| 1607 | manager.save_session(&session)?; |
| 1608 | manager.save_session_goal(&target_id, target_goal.as_ref())?; |
| 1609 | Ok((session, source_lease, target_lease)) |
| 1610 | } |
| 1611 | Ok(_) => { |
| 1612 | manager.save_session(&session)?; |
| 1613 | manager.save_session_goal(&target_id, target_goal.as_ref())?; |
| 1614 | Ok((session, source_lease, target_lease)) |
| 1615 | } |
| 1616 | Err(error) => Err(error.into()), |
| 1617 | } |
| 1618 | }) |
| 1619 | .await?; |
| 1620 | let detail = runtime.get_thread_detail(&thread.id).await?; |
| 1621 | ensure!( |
| 1622 | !super::sessions::thread_detail_has_live_work(&detail), |
| 1623 | "canonical target has pending work" |
| 1624 | ); |
| 1625 | if detail.turns.is_empty() && detail.items.is_empty() { |
| 1626 | runtime |
| 1627 | .seed_thread_from_messages_with_history_operation( |
| 1628 | &thread.id, |
| 1629 | &session.messages, |
| 1630 | Some(&operation), |
| 1631 | &session.messages, |
| 1632 | ) |
| 1633 | .await?; |
| 1634 | } else { |
| 1635 | ensure!( |
| 1636 | is_resume, |
| 1637 | "uncommitted new target has unproven history; recovery required" |
| 1638 | ); |
| 1639 | let from = operation |
| 1640 | .journal_witness |
| 1641 | .as_ref() |
| 1642 | .ok_or_else(|| anyhow!("history witness absent"))? |
| 1643 | .seed_from_message_index; |
| 1644 | ensure!( |
| 1645 | from <= session.messages.len(), |
| 1646 | "history suffix boundary is invalid" |
| 1647 | ); |
| 1648 | if from < session.messages.len() { |
| 1649 | runtime |
| 1650 | .seed_thread_from_messages_with_history_operation( |
| 1651 | &thread.id, |
| 1652 | &session.messages[from..], |
| 1653 | Some(&operation), |
| 1654 | &session.messages, |
| 1655 | ) |
| 1656 | .await?; |
| 1657 | } |
| 1658 | } |
| 1659 | runtime |
| 1660 | .set_thread_session_checkpoint(&thread.id, &session) |
| 1661 | .await?; |
| 1662 | runtime |
| 1663 | .synchronize_history_operation(&thread.id, &session) |
| 1664 | .await?; |
| 1665 | let commit_runtime = Arc::clone(&runtime); |
| 1666 | history_owner_work(move || commit_runtime.commit_history_operation(operation)).await |
| 1667 | } |
| 1668 | |
| 1669 | pub(super) async fn lookup_thread_history_operation( |
| 1670 | State(state): State<RuntimeApiState>, |
| 1671 | Json(request): Json<codewhale_protocol::CanonicalThreadOperationLookup>, |
| 1672 | ) -> Result<Json<codewhale_protocol::CanonicalThreadOperationStatus>, ApiError> { |
| 1673 | lookup_thread_history_operation_in_runtime(&state.runtime_threads, &state.sessions_dir, request) |
| 1674 | .await |
| 1675 | .map(Json) |
| 1676 | .map_err(|error| ApiError::conflict(error.to_string())) |
| 1677 | } |
| 1678 | |
| 1679 | /// A read-only exact-key lookup never resumes an Engine, mutates a thread, or |
| 1680 | /// guesses absence from a damaged intent/document. It authenticates current |
| 1681 | /// binding separately from the historical receipt. |
| 1682 | pub(crate) async fn lookup_thread_history_operation_in_runtime( |
| 1683 | runtime: &Arc<RuntimeThreadManager>, |
| 1684 | sessions_dir: &Path, |
| 1685 | request: codewhale_protocol::CanonicalThreadOperationLookup, |
| 1686 | ) -> Result<codewhale_protocol::CanonicalThreadOperationStatus> { |
| 1687 | let binding = runtime.session_store_binding(); |
| 1688 | ensure!( |
| 1689 | request.version == 1 |
| 1690 | && request.expected_data_dir == binding.data_dir |
| 1691 | && request.expected_execution_scope == binding.execution_scope, |
| 1692 | "operation lookup belongs to a different held owner" |
| 1693 | ); |
| 1694 | let manager = Arc::clone(runtime); |
| 1695 | let key = request.operation_key.clone(); |
| 1696 | let operation = |
| 1697 | history_owner_work(move || manager.lookup_history_operation_by_key(&key)).await?; |
| 1698 | let Some(operation) = operation else { |
| 1699 | return Ok(codewhale_protocol::CanonicalThreadOperationStatus::Absent); |
| 1700 | }; |
| 1701 | ensure!( |
| 1702 | operation |
| 1703 | .journal_witness |
| 1704 | .as_ref() |
| 1705 | .is_some_and(|witness| witness.workspace == request.workspace), |
| 1706 | "operation belongs to another acknowledged workspace" |
| 1707 | ); |
| 1708 | let association = operation.association.clone().ok_or_else(|| { |
| 1709 | anyhow!("legacy operation lacks a typed action association; recovery required") |
| 1710 | })?; |
| 1711 | if !operation.committed { |
| 1712 | return Ok( |
| 1713 | codewhale_protocol::CanonicalThreadOperationStatus::Pending { |
| 1714 | receipt: operation.receipt, |
| 1715 | association, |
| 1716 | }, |
| 1717 | ); |
| 1718 | } |
| 1719 | let admission = runtime.try_history_import_guard()?; |
| 1720 | let manager = Arc::clone(runtime); |
| 1721 | let dir = sessions_dir.to_path_buf(); |
| 1722 | history_owner_work(move || { |
| 1723 | let _admission = admission; |
| 1724 | let thread = manager |
| 1725 | .history_operation_thread(&operation.receipt.runtime_thread_id)? |
| 1726 | .ok_or_else(|| anyhow!("committed operation target is absent; recovery required"))?; |
| 1727 | ensure!( |
| 1728 | thread.workspace == request.workspace, |
| 1729 | "committed target belongs to another selected workspace" |
| 1730 | ); |
| 1731 | verify_operation_checkpoint(&SessionManager::new(dir)?, &thread, &binding, &operation)?; |
| 1732 | Ok( |
| 1733 | codewhale_protocol::CanonicalThreadOperationStatus::Committed { |
| 1734 | receipt: operation.receipt, |
| 1735 | association, |
| 1736 | }, |
| 1737 | ) |
| 1738 | }) |
| 1739 | .await |
| 1740 | } |
| 1741 | |
| 1742 | pub(super) async fn recover_thread_history_operation( |
| 1743 | State(state): State<RuntimeApiState>, |
| 1744 | Json(request): Json<codewhale_protocol::CanonicalThreadOperationRecovery>, |
| 1745 | ) -> Result<Json<codewhale_protocol::CanonicalThreadOperationStatus>, ApiError> { |
| 1746 | recover_thread_history_operation_in_runtime( |
| 1747 | &state.runtime_threads, |
| 1748 | &state.sessions_dir, |
| 1749 | request, |
| 1750 | ) |
| 1751 | .await |
| 1752 | .map(Json) |
| 1753 | .map_err(|error| ApiError::conflict(error.to_string())) |
| 1754 | } |
| 1755 | |
| 1756 | /// Explicit exact-key recovery settles already-published preparation; it never |
| 1757 | /// reconstructs an intent from a changed source. Lookup remains read-only. |
| 1758 | pub(crate) async fn recover_thread_history_operation_in_runtime( |
| 1759 | runtime: &Arc<RuntimeThreadManager>, |
| 1760 | sessions_dir: &Path, |
| 1761 | request: codewhale_protocol::CanonicalThreadOperationRecovery, |
| 1762 | ) -> Result<codewhale_protocol::CanonicalThreadOperationStatus> { |
| 1763 | let binding = runtime.session_store_binding(); |
| 1764 | ensure!( |
| 1765 | request.operation.version == 1 |
| 1766 | && request.operation.expected_data_dir == binding.data_dir |
| 1767 | && request.operation.expected_execution_scope == binding.execution_scope, |
| 1768 | "operation recovery belongs to a different held owner" |
| 1769 | ); |
| 1770 | let admission = runtime.try_history_import_guard()?; |
| 1771 | let runtime = Arc::clone(runtime); |
| 1772 | let dir = sessions_dir.to_path_buf(); |
| 1773 | tokio::spawn(async move { |
| 1774 | let _admission = admission; |
| 1775 | let captured = Arc::clone(&runtime); |
| 1776 | let key = request.operation.operation_key.clone(); |
| 1777 | let Some(operation) = |
| 1778 | history_owner_work(move || captured.lookup_history_operation_by_key(&key)).await? |
| 1779 | else { |
| 1780 | return Ok(codewhale_protocol::CanonicalThreadOperationStatus::Absent); |
| 1781 | }; |
| 1782 | ensure!( |
| 1783 | operation.association.as_ref() == Some(&request.association), |
| 1784 | "retained operation action/source association differs; no recovery write admitted" |
| 1785 | ); |
| 1786 | ensure!( |
| 1787 | operation |
| 1788 | .journal_witness |
| 1789 | .as_ref() |
| 1790 | .is_some_and(|witness| witness.workspace == request.operation.workspace), |
| 1791 | "operation belongs to another acknowledged workspace" |
| 1792 | ); |
| 1793 | let committed = if operation.committed { |
| 1794 | let captured = Arc::clone(&runtime); |
| 1795 | let expected = operation.clone(); |
| 1796 | let workspace = request.operation.workspace.clone(); |
| 1797 | history_owner_work(move || { |
| 1798 | let thread = captured |
| 1799 | .history_operation_thread(&expected.receipt.runtime_thread_id)? |
| 1800 | .ok_or_else(|| anyhow!("committed operation target is absent"))?; |
| 1801 | ensure!( |
| 1802 | thread.workspace == workspace, |
| 1803 | "operation target workspace changed" |
| 1804 | ); |
| 1805 | verify_operation_checkpoint( |
| 1806 | &SessionManager::new(dir)?, |
| 1807 | &thread, |
| 1808 | &binding, |
| 1809 | &expected, |
| 1810 | )?; |
| 1811 | Ok(expected.receipt) |
| 1812 | }) |
| 1813 | .await? |
| 1814 | } else { |
| 1815 | let Some(receipt) = settle_prepared_history_operation( |
| 1816 | &runtime, |
| 1817 | &dir, |
| 1818 | &operation, |
| 1819 | &request.operation.workspace, |
| 1820 | ) |
| 1821 | .await? |
| 1822 | else { |
| 1823 | return Ok( |
| 1824 | codewhale_protocol::CanonicalThreadOperationStatus::Pending { |
| 1825 | receipt: operation.receipt, |
| 1826 | association: request.association, |
| 1827 | }, |
| 1828 | ); |
| 1829 | }; |
| 1830 | receipt |
| 1831 | }; |
| 1832 | Ok( |
| 1833 | codewhale_protocol::CanonicalThreadOperationStatus::Committed { |
| 1834 | receipt: committed, |
| 1835 | association: request.association, |
| 1836 | }, |
| 1837 | ) |
| 1838 | }) |
| 1839 | .await |
| 1840 | .context("operation recovery outcome is uncertain; retain the same operation key")? |
| 1841 | } |
| 1842 | |
| 1843 | fn append_offered_history( |
| 1844 | session: &mut SavedSession, |
| 1845 | values: &[serde_json::Value], |
| 1846 | key: &str, |
| 1847 | ) -> Result<()> { |
| 1848 | let offered: Vec<Message> = values |
| 1849 | .iter() |
| 1850 | .map(|value| { |
| 1851 | let message: Message = serde_json::from_value(value.clone()).context( |
| 1852 | "opaque offered history retained; only complete model messages are admitted", |
| 1853 | )?; |
| 1854 | ensure!( |
| 1855 | serde_json::to_value(&message)? == *value, |
| 1856 | "offered message has unsupported fields" |
| 1857 | ); |
| 1858 | if message.role == Role::User { |
| 1859 | crate::image_attach::runtime_images_from_blocks(&message.content) |
| 1860 | .map_err(anyhow::Error::msg)?; |
| 1861 | } |
| 1862 | Ok(message) |
| 1863 | }) |
| 1864 | .collect::<Result<_>>()?; |
| 1865 | let overlap = codewhale_core::persisted_overlap(&session.messages, &offered); |
| 1866 | let journal = session |
| 1867 | .journal |
| 1868 | .as_mut() |
| 1869 | .ok_or_else(|| anyhow!("full journal missing"))?; |
| 1870 | ensure!( |
| 1871 | journal |
| 1872 | .entries |
| 1873 | .len() |
| 1874 | .checked_add(offered.len() - overlap) |
| 1875 | .is_some_and(|count| count <= MAX_CANONICAL_HISTORY_ENTRIES), |
| 1876 | "complete offered history exceeds entry bound" |
| 1877 | ); |
| 1878 | for (index, message) in offered.into_iter().enumerate().skip(overlap) { |
| 1879 | journal.append_stamped( |
| 1880 | SessionEntryKind::Message { message }, |
| 1881 | session.metadata.updated_at, |
| 1882 | ); |
| 1883 | let entry = journal |
| 1884 | .entries |
| 1885 | .last_mut() |
| 1886 | .ok_or_else(|| anyhow!("offered journal append missing"))?; |
| 1887 | entry.id = format!( |
| 1888 | "offered:{}:{index}", |
| 1889 | crate::hashing::sha256_hex(key.as_bytes()) |
| 1890 | ); |
| 1891 | journal.leaf_id = Some(entry.id.clone()); |
| 1892 | } |
| 1893 | session.leaf_id = journal.leaf_id.clone(); |
| 1894 | // Publish the same active branch/count that the protected reader restores, |
| 1895 | // before retaining the full-document recovery witness. |
| 1896 | session.ensure_journal(); |
| 1897 | Ok(()) |
| 1898 | } |
| 1899 | |
| 1900 | fn decode_history_overrides( |
| 1901 | value: &serde_json::Value, |
| 1902 | config: &crate::config::Config, |
| 1903 | workspace: &Path, |
| 1904 | ) -> Result<Option<crate::runtime_threads::UpdateThreadRequest>> { |
| 1905 | if value.is_null() { |
| 1906 | return Ok(None); |
| 1907 | } |
| 1908 | let fields = value |
| 1909 | .as_object() |
| 1910 | .ok_or_else(|| anyhow!("history overrides must be an object"))?; |
| 1911 | let mut wire = serde_json::Map::new(); |
| 1912 | let mut prompt_parts = Vec::new(); |
| 1913 | for (key, value) in fields { |
| 1914 | match key.as_str() { |
| 1915 | "model" | "model_provider" | "model_provider_id" | "mode" | "permission_posture" |
| 1916 | | "allow_shell" | "trust_mode" | "auto_approve" | "system_prompt" => { |
| 1917 | ensure!( |
| 1918 | wire.insert(key.clone(), value.clone()).is_none(), |
| 1919 | "conflicting history configuration fields" |
| 1920 | ); |
| 1921 | } |
| 1922 | "cwd" | "workspace" => { |
| 1923 | let selected: std::path::PathBuf = serde_json::from_value(value.clone())?; |
| 1924 | ensure!( |
| 1925 | selected == workspace, |
| 1926 | "history workspace override differs from selected owner scope" |
| 1927 | ); |
| 1928 | } |
| 1929 | "approval_policy" => { |
| 1930 | let policy = value |
| 1931 | .as_str() |
| 1932 | .ok_or_else(|| anyhow!("approval policy must be a string"))?; |
| 1933 | let posture = match policy.trim().to_ascii_lowercase().as_str() { |
| 1934 | "ask" | "suggest" | "on-request" | "untrusted" => "ask", |
| 1935 | "auto" | "auto-review" | "auto_review" => "auto_review", |
| 1936 | "full" | "full-access" | "full_access" | "bypass" | "never" => "full_access", |
| 1937 | _ => { |
| 1938 | return Err(anyhow!( |
| 1939 | "unsupported legacy approval policy; owner policy retained" |
| 1940 | )); |
| 1941 | } |
| 1942 | }; |
| 1943 | ensure!( |
| 1944 | wire.insert("permission_posture".into(), serde_json::json!(posture)) |
| 1945 | .is_none(), |
| 1946 | "conflicting history approval policy fields" |
| 1947 | ); |
| 1948 | } |
| 1949 | "sandbox" => ensure!( |
| 1950 | value.as_str() == config.sandbox_mode.as_deref(), |
| 1951 | "legacy sandbox override conflicts with the captured owner sandbox ceiling" |
| 1952 | ), |
| 1953 | "config" => { |
| 1954 | let nested = value |
| 1955 | .as_object() |
| 1956 | .ok_or_else(|| anyhow!("history config must be a typed override object"))?; |
| 1957 | for (name, setting) in nested { |
| 1958 | ensure!( |
| 1959 | matches!( |
| 1960 | name.as_str(), |
| 1961 | "model" |
| 1962 | | "model_provider" |
| 1963 | | "model_provider_id" |
| 1964 | | "mode" |
| 1965 | | "permission_posture" |
| 1966 | | "allow_shell" |
| 1967 | | "trust_mode" |
| 1968 | | "auto_approve" |
| 1969 | | "system_prompt" |
| 1970 | ), |
| 1971 | "unsupported history config field; no credentials or global policy are imported" |
| 1972 | ); |
| 1973 | ensure!( |
| 1974 | wire.insert(name.clone(), setting.clone()).is_none(), |
| 1975 | "conflicting history configuration fields" |
| 1976 | ); |
| 1977 | } |
| 1978 | } |
| 1979 | "base_instructions" | "developer_instructions" | "personality" => { |
| 1980 | let text = value |
| 1981 | .as_str() |
| 1982 | .ok_or_else(|| anyhow!("history instruction must be a string"))?; |
| 1983 | prompt_parts.push(format!("{key}:\n{text}")); |
| 1984 | } |
| 1985 | _ => { |
| 1986 | return Err(anyhow!( |
| 1987 | "unsupported history override {key}; source retained" |
| 1988 | )); |
| 1989 | } |
| 1990 | } |
| 1991 | } |
| 1992 | if !prompt_parts.is_empty() { |
| 1993 | ensure!( |
| 1994 | !wire.contains_key("system_prompt"), |
| 1995 | "conflicting history instruction fields" |
| 1996 | ); |
| 1997 | wire.insert( |
| 1998 | "system_prompt".into(), |
| 1999 | serde_json::json!(prompt_parts.join("\n\n")), |
| 2000 | ); |
| 2001 | } |
| 2002 | if wire.is_empty() { |
| 2003 | return Ok(None); |
| 2004 | } |
| 2005 | Ok(Some(serde_json::from_value(serde_json::Value::Object( |
| 2006 | wire, |
| 2007 | ))?)) |
| 2008 | } |
| 2009 | |
| 2010 | fn apply_history_create_overrides( |
| 2011 | create: &mut CreateThreadRequest, |
| 2012 | update: &crate::runtime_threads::UpdateThreadRequest, |
| 2013 | ) { |
| 2014 | if update.model.is_some() { |
| 2015 | create.model.clone_from(&update.model); |
| 2016 | } |
| 2017 | if update.model_provider.is_some() { |
| 2018 | create.model_provider.clone_from(&update.model_provider); |
| 2019 | } |
| 2020 | if update.model_provider_id.is_some() { |
| 2021 | create |
| 2022 | .model_provider_id |
| 2023 | .clone_from(&update.model_provider_id); |
| 2024 | } |
| 2025 | if update.mode.is_some() { |
| 2026 | create.mode.clone_from(&update.mode); |
| 2027 | } |
| 2028 | if update.permission_posture.is_some() { |
| 2029 | create |
| 2030 | .permission_posture |
| 2031 | .clone_from(&update.permission_posture); |
| 2032 | } |
| 2033 | if update.allow_shell.is_some() { |
| 2034 | create.allow_shell = update.allow_shell; |
| 2035 | } |
| 2036 | if update.trust_mode.is_some() { |
| 2037 | create.trust_mode = update.trust_mode; |
| 2038 | } |
| 2039 | if update.auto_approve.is_some() { |
| 2040 | create.auto_approve = update.auto_approve; |
| 2041 | } |
| 2042 | if update.system_prompt.is_some() { |
| 2043 | create.system_prompt.clone_from(&update.system_prompt); |
| 2044 | } |
| 2045 | } |
| 2046 | |
| 2047 | pub(crate) struct HistorySizeBound(pub(crate) usize); |
| 2048 | impl std::io::Write for HistorySizeBound { |
| 2049 | fn write(&mut self, bytes: &[u8]) -> std::io::Result<usize> { |
| 2050 | if bytes.len() > self.0 { |
| 2051 | return Err(std::io::Error::new( |
| 2052 | std::io::ErrorKind::InvalidData, |
| 2053 | "full history exceeds byte transport bound; source retained", |
| 2054 | )); |
| 2055 | } |
| 2056 | self.0 -= bytes.len(); |
| 2057 | Ok(bytes.len()) |
| 2058 | } |
| 2059 | fn flush(&mut self) -> std::io::Result<()> { |
| 2060 | Ok(()) |
| 2061 | } |
| 2062 | } |
| 2063 | |
| 2064 | #[cfg(test)] |
| 2065 | mod graph_tests { |
| 2066 | use super::*; |
| 2067 | use codewhale_protocol::MessageRecord; |
| 2068 | |
| 2069 | fn history() -> LegacyThreadHistory { |
| 2070 | LegacyThreadHistory { |
| 2071 | goal: None, |
| 2072 | version: 1, |
| 2073 | state_store_id: "a".repeat(64), |
| 2074 | thread_id: "legacy".into(), |
| 2075 | current_leaf_id: Some(3), |
| 2076 | messages: [ |
| 2077 | (1, None, "system"), |
| 2078 | (2, Some(1), "user"), |
| 2079 | (3, Some(2), "assistant"), |
| 2080 | (4, Some(1), "user"), |
| 2081 | ] |
| 2082 | .into_iter() |
| 2083 | .map(|(id, parent_entry_id, role)| MessageRecord { |
| 2084 | id, |
| 2085 | thread_id: "legacy".into(), |
| 2086 | role: role.into(), |
| 2087 | content: format!("content-{id}"), |
| 2088 | item: None, |
| 2089 | created_at: 1_700_000_000 + id, |
| 2090 | parent_entry_id, |
| 2091 | }) |
| 2092 | .collect(), |
| 2093 | } |
| 2094 | } |
| 2095 | |
| 2096 | #[test] |
| 2097 | fn history_override_conflicts_refuse_every_insert_and_preserve_full_access_posture() { |
| 2098 | let config = crate::config::Config::default(); |
| 2099 | let workspace = std::path::PathBuf::from("/checked-workspace"); |
| 2100 | for value in [ |
| 2101 | serde_json::json!({"config":{"model":"first"},"model":"second"}), |
| 2102 | serde_json::json!({"approval_policy":"on-request","permission_posture":"full_access"}), |
| 2103 | serde_json::json!({"config":{"system_prompt":"first"},"system_prompt":"second"}), |
| 2104 | serde_json::json!({"base_instructions":"first","system_prompt":"second"}), |
| 2105 | ] { |
| 2106 | assert!(decode_history_overrides(&value, &config, &workspace).is_err()); |
| 2107 | } |
| 2108 | for policy in ["full-access", "never"] { |
| 2109 | let update = decode_history_overrides( |
| 2110 | &serde_json::json!({"approval_policy":policy}), |
| 2111 | &config, |
| 2112 | &workspace, |
| 2113 | ) |
| 2114 | .unwrap() |
| 2115 | .unwrap(); |
| 2116 | assert_eq!(update.permission_posture.as_deref(), Some("full_access")); |
| 2117 | } |
| 2118 | assert!( |
| 2119 | decode_history_overrides( |
| 2120 | &serde_json::json!({"approval_policy":"never","permission_posture":"ask"}), |
| 2121 | &config, |
| 2122 | &workspace, |
| 2123 | ) |
| 2124 | .is_err() |
| 2125 | ); |
| 2126 | } |
| 2127 | |
| 2128 | #[test] |
| 2129 | fn full_history_measurement_refuses_before_allocating_a_truncated_value() { |
| 2130 | let mut size = HistorySizeBound(32); |
| 2131 | assert!(serde_json::to_writer(&mut size, &"x".repeat(64)).is_err()); |
| 2132 | assert!(size.0 <= 32); |
| 2133 | let mut size = HistorySizeBound(4); |
| 2134 | serde_json::to_writer(&mut size, &"ok").unwrap(); |
| 2135 | assert_eq!(size.0, 0); |
| 2136 | } |
| 2137 | |
| 2138 | #[test] |
| 2139 | fn import_graph_preserves_all_branches_stamps_and_selected_system_prefix() { |
| 2140 | let source = history(); |
| 2141 | let before = serde_json::to_value(&source).unwrap(); |
| 2142 | let graph = legacy_journal(&source).unwrap(); |
| 2143 | assert_eq!(graph.entries.len(), 4); |
| 2144 | assert_eq!(graph.to_messages().len(), 3); |
| 2145 | assert_eq!(graph.to_messages()[0].role, Role::System); |
| 2146 | assert_eq!(graph.entries[3].parent_id, graph.entries[1].parent_id); |
| 2147 | assert_eq!(graph.entries[3].created_at.timestamp(), 1_700_000_004); |
| 2148 | assert_eq!(before, serde_json::to_value(source).unwrap()); |
| 2149 | } |
| 2150 | |
| 2151 | #[test] |
| 2152 | fn import_graph_refuses_cycles_duplicates_dangling_foreign_and_opaque_rows() { |
| 2153 | let original = history(); |
| 2154 | let mut cases = Vec::new(); |
| 2155 | let mut graph = original.clone(); |
| 2156 | graph.messages[0].parent_entry_id = Some(3); |
| 2157 | cases.push(graph); |
| 2158 | let mut graph = original.clone(); |
| 2159 | graph.messages[3].id = 2; |
| 2160 | cases.push(graph); |
| 2161 | let mut graph = original.clone(); |
| 2162 | graph.messages[3].parent_entry_id = Some(99); |
| 2163 | cases.push(graph); |
| 2164 | let mut graph = original.clone(); |
| 2165 | graph.messages[3].thread_id = "foreign".into(); |
| 2166 | cases.push(graph); |
| 2167 | let mut graph = original.clone(); |
| 2168 | graph.messages[3].item = Some(serde_json::json!({"unknown":"opaque"})); |
| 2169 | cases.push(graph); |
| 2170 | let mut graph = original.clone(); |
| 2171 | graph.current_leaf_id = None; |
| 2172 | cases.push(graph); |
| 2173 | let mut graph = original.clone(); |
| 2174 | graph.version = 2; |
| 2175 | cases.push(graph); |
| 2176 | for source in cases { |
| 2177 | let before = serde_json::to_value(&source).unwrap(); |
| 2178 | assert!(legacy_journal(&source).is_err()); |
| 2179 | assert_eq!( |
| 2180 | before, |
| 2181 | serde_json::to_value(source).unwrap(), |
| 2182 | "refusal preserves source" |
| 2183 | ); |
| 2184 | } |
| 2185 | } |
| 2186 | } |
| 2187 |