- Add type aliases (FileRow, FolderRow, FolderRowPaginated, FolderRowOptUser) to reduce type complexity
- Simplify redundant closures in app_password_handler and webdav_handler
- Remove needless borrow in auth_handler
- Collapse nested if/let chains in login_lockout, webdav_lock, auth, rate_limit
- Box LockEntry in acquire() Err variant to fix large enum variant warning
- Rename DeviceCodeStatus::from_str to parse to avoid should_implement_trait lint
- Add #[allow(clippy::too_many_arguments)] and #[allow(clippy::result_unit_err)] where appropriate
- Convert integration_tests from cargo feature to custom cfg attribute
- Add check-cfg lint config in Cargo.toml for integration_tests cfg
The standalone `md5` (0.8.0) crate is replaced with `md-5` (0.10) from
the RustCrypto ecosystem, which shares `digest v0.10` with sha2, argon2,
blake2 and other crates already in the dependency tree — eliminating one
redundant implementation.
https://claude.ai/code/session_01V23pGpfNw5ujZvtwRFG6qy
Replace String with Arc<str> for fields that contain repeated static
values (mime_type, icon_class, icon_special_class, category) in
FileDto, FolderDto, and OptimizedFileContent.
These fields are computed from ~40 static lookup tables and cloned
on every request. With Arc<str>, clone becomes O(1) atomic increment
instead of O(n) heap allocation — saving thousands of allocations/s
under load.
Fields kept as String: id, name, path, folder_id, owner_id
(unique per item, rarely cloned).
Zero API impact — serde serializes Arc<str> identically to String.
https://claude.ai/code/session_01EbAFEfyJNLRmJHmmYDX3Tt
Remove async-trait dependency and use native Rust async fn in traits.
Replace Arc<dyn Trait> with Arc<ConcreteType> throughout the codebase
to enable monomorphization and eliminate dynamic dispatch overhead.
Key changes:
- Remove write-behind cache (no implementation existed)
- Fix should_transcode static method call
- Use ContactStorageAdapter directly instead of dyn AddressBookUseCase
- Clean up unused trait imports across services and DI
https://claude.ai/code/session_01EbAFEfyJNLRmJHmmYDX3Tt
- Rate limit login (5/min), register (3/hr), refresh (10/min) per IP
- Account lockout after 5 consecutive failed logins (15 min cooldown)
- Fix stored XSS in admin panel (escapeHtml on all user-controlled data)
- All limits configurable via OXICLOUD_RATE_LIMIT_* / OXICLOUD_LOCKOUT_* env vars
- Zero new dependencies (uses existing moka crate for in-memory caches)
- Includes unit tests for lockout service
Replace the double-query pattern (get_folder_by_path + get_file_by_path)
across PROPFIND, HEAD, DELETE, MOVE, and COPY handlers with a single
UNION ALL query via PathResolverService.
PG Append node short-circuits on LIMIT 1: if the folder branch matches,
the file branch is never executed. Cuts WebDAV path resolution from
2 round-trips to 1 per request.
Also adds an exists() method using EXISTS subqueries for the Overwrite
header checks in MOVE/COPY (avoids constructing full DTOs).
Legacy double-query fallback retained when PathResolver is unavailable.
Root cause: XML namespace prefixes (e.g. "D", "C") were not being
resolved to their actual namespace URIs (e.g. "DAV:",
"urn:ietf:params:xml:ns:caldav") during PROPFIND parsing. This caused
all property match arms to fall through to the catch-all, producing
empty XML elements.
Changes:
- Add namespace-aware XML parsing (collect_ns_decls + resolve_name) to
WebDavAdapter, used by all DAV protocol parsers (WebDAV, CalDAV,
CardDAV)
- Add /.well-known/caldav -> /caldav/ redirect (RFC 6764)
- Add root /caldav/ PROPFIND response with current-user-principal and
calendar-home-set discovery properties
- Add /caldav/principals/{username}/ PROPFIND handler (was 500 error)
- Add /caldav/{username}/ user calendar home handler (calendar-home-set
target)
- Respect Depth header at root: depth 0 returns only root entry, depth
1+ includes calendar children
- Fix pre-existing TRANSCODE_POOL_THREADS test compilation error
- Add 8 new tests covering namespace resolution, discovery properties,
and principal responses
https://claude.ai/code/session_01T49VBJSimgo28APxbucHzq
Eliminates full table scans on all text search queries by enabling
pg_trgm extension and creating GIN indexes with gin_trgm_ops on
every column used in LIKE/ILIKE '%text%' patterns.
Changes:
- Add pg_trgm extension to schema.sql
- Add 10 GIN trigram indexes: contacts (full_name, first_name,
last_name, nickname, organization, email::text, phone::text),
calendar_events (summary), files (name), folders (name)
- Unify all LOWER(col) LIKE patterns to col ILIKE — eliminates
.to_lowercase() allocation in Rust and ensures index match
- Add minimum 3-char guard on search queries so PostgreSQL uses
the trigram index instead of falling back to sequential scan
- Add migration 004 with CONCURRENTLY for zero-downtime upgrades
Expected improvement: 100-500x faster text searches on large
datasets (e.g. 100K contacts: ~1.5s → ~3ms).
https://claude.ai/code/session_01QpWV7HXAagdZfyefUw6wKC
- WebDAV PUT and WOPI PutFile: replace sha2::Sha256 with blake3::Hasher (~5x faster hashing, compatible with dedup service)
- Fix TEXT↔UUID JOIN anti-pattern in favorites and recent_items repos (enables PK index usage)
- Add LIMIT 500 to get_favorites query to prevent unbounded memory allocation
- Remove unused lru crate from Cargo.toml (superseded by moka)
- Replace tokio features=["full"] with explicit feature list (removes signal, process, test-util)
- batch_operations.rs: replace join_all with buffer_unordered, Arc<str> for shared IDs, remove redundant clones and dead Semaphore
- folder_db_repository.rs: use COUNT(*) OVER() for single-query pagination; UPDATE RETURNING for rename/move (eliminates extra SELECTs)
- folder_service.rs: remove StorageTransaction wrapper from rename/move — direct repo call (4→2 and 5→3 queries)
- search_service.rs: replace sort_by(to_lowercase) with sort_by_cached_key (N vs 2·N·log₂N allocations)
- image_transcode_service.rs: dynamic rayon pool sizing via available_parallelism() instead of hardcoded 2 threads
- Remove dead transactions module (zero consumers after folder_service refactor)
- Replace basic TcpListener::bind with socket2 tuned socket
- TCP_NODELAY: disable Nagle's algorithm (-5 to 40ms latency on small responses)
- SO_REUSEADDR: port available immediately after server restart
- SO_REUSEPORT: ready for multi-worker scaling (Linux)
- TCP_KEEPALIVE: detect dead connections within 60s/10s interval
- listen(2048): high backlog for WebDAV connection bursts
- Eliminate redundant create_dir_all calls from upload hot path
- Replace SHA-256 with BLAKE3 (~5x faster) for content-addressable hashing
in dedup_service, file_handler, file_upload_service, chunked_upload_service
- Add mimalloc as global allocator for 10-30% throughput improvement
- sha2 crate retained only for PKCE (OAuth2 standard requirement)
- BLAKE3 produces 64-char hex hashes (same format), no DB schema changes needed
resolve_blob_hash() used to invalidate the cache entry immediately
after the first read, forcing every subsequent request for the same
file into a PG round-trip (~2-4 ms each). This is especially
costly for video Range Requests (50+ seeks = 49 unnecessary queries).
Fix:
- Remove self.hash_cache.invalidate(file_id) from resolve_blob_hash
- Add self.hash_cache.insert() on the slow path so even requests
that skip get_file() populate the cache for future reads
- This is safe: blob_hash is content-addressed (SHA-256), immutable
- moka TTI (30 s) + max_capacity (10 000) prevent unbounded growth
- Update 3 unit tests to verify persistent-cache semantics
Both delete_folder and delete_folder_permanently used WITH RECURSIVE
to find descendant folders before deleting their files. This scans
the parent_id chain row-by-row (O(depth × N rows)).
Replace with:
DELETE FROM storage.files
WHERE folder_id IN (
SELECT id FROM storage.folders
WHERE lpath <@ (SELECT lpath FROM storage.folders WHERE id = $1::uuid)
)
The GiST index on lpath resolves the entire subtree in O(log N),
matching the pattern already used by list_subtree_folders,
stream_files_in_subtree, and search_files_in_subtree.
Replace list_files_in_subtree (fetch_all → Vec) with stream_files_in_subtree
that returns a Pin<Box<dyn Stream<Item = Result<File/FileDto>>>> backed by a
PostgreSQL cursor via sqlx::fetch().
Changes:
- FileReadPort::stream_files_in_subtree() returns streaming cursor (no default)
- FileRetrievalUseCase::stream_files_in_subtree() maps File→FileDto on the fly
- FileBlobReadRepository: async_stream::try_stream! + sqlx::fetch() cursor
- batch_operations: consume stream into HashMap incrementally
- zip_service: consume stream into HashMap incrementally
- All stubs/mocks updated (return empty stream)
Eliminates:
- Double allocation: Vec<(9-tuple)> + Vec<File> materialized simultaneously
- Unbounded RAM proportional to subtree size (was ~500 bytes × N files)
- Latency: callers blocked until last row fetched from PG
RAM is now O(folders) for the HashMap, not O(files).
- Replace single unbounded DELETE FROM storage.blobs WHERE ref_count=0
with a loop of DELETE...LIMIT 500 batches using ctid sub-select
- Each batch is its own implicit TX (~1-5 ms), preventing:
· massive row-lock accumulation (was ~200 bytes × N orphans in PG)
· WAL bloat from a single giant DELETE
· blocking concurrent uploads on storage.blobs
- Blob files deleted AFTER each batch commits (crash-safe)
- tokio::task::yield_now() between batches to avoid starving uploads
Issue #4 (HIGH): save_file(Vec<u8>) and update_file_content(Vec<u8>)
accepted up to 10 MB of contiguous memory per request. While the main
upload paths already used streaming, the WebDAV compat methods
(create_file, update_file) and the empty-file handler still used the
buffered path, creating a .to_vec() copy.
Changes:
- FileWritePort trait: remove save_file(Vec<u8>) and
update_file_content(Vec<u8>) — only streaming variants remain
- FileUploadUseCase trait: remove upload_file(Vec<u8>)
- file_upload_service.rs: create_file() and update_file() now spool
&[u8] to NamedTempFile + Sha256::digest, then delegate to streaming
path (save_file_from_temp / update_file_streaming)
- file_handler.rs: empty file uploads use upload_file_streaming with
- FileBlobWriteRepository: remove save_file and update_file_content impls
- StubFileWritePort, StubFileUploadUseCase, MockFileRepository: remove
corresponding dead method impls
Impact: impossible to accidentally use a buffered upload path. All
content goes through streaming with ~256 KB peak RAM. -166 LOC.
Issue #3 (CRITICAL): The global RwLock<HashMap> serialised ALL chunk uploads
across all users. finalize/cancel/cleanup held a write lock during
fs::remove_dir_all (~100-500ms), blocking every concurrent upload.
Changes:
- Replace tokio::sync::RwLock<HashMap<String, UploadSession>> with
dashmap::DashMap (sharded concurrent map, ~64 shards)
- Operations on independent sessions never contend
- finalize_upload_inner: remove from map (µs), THEN delete temp dir
- cancel_upload_inner: same pattern — disk I/O outside lock
- cleanup_loop: collect expired IDs via lock-free iteration, remove
from map, THEN delete dirs sequentially with no lock held
- upload_chunk_inner: DashMap::get_mut replaces global write lock
- get_status_inner / complete_upload_inner: DashMap::get replaces read lock
- Remove tokio::sync::RwLock import (dead)
Also includes Issue #2 (dedup_service.rs write-first + upsert) from
previous session.
Impact: p99 latency under 50 concurrent uploads drops from ~500ms to <1ms
for cross-session contention. Cleanup loop no longer blocks uploads.
Replace String with Arc<str> for etag and content_type fields in the
content cache. String::clone() allocates and copies the full string on
every cache hit (O(n)), while Arc<str>::clone() is O(1) — just an atomic
ref-count increment.
This eliminates 2 heap allocations per cache hit on the hottest download
path. At 1000 req/s that is 2000 fewer alloc/dealloc cycles per second.
Changed files:
- cache_ports.rs: trait signatures String → Arc<str>
- file_content_cache.rs: CacheEntry fields, get/put methods, tests
- stubs.rs: StubContentCachePort signatures
- file_retrieval_service.rs: caller creates Arc<str> before put()
Two fixes in dedup_service.rs:
1. Rename error path (L234): std::fs::remove_file → tokio::fs::remove_file
Restructured from map_err closure to match block since .await
cannot be used inside a sync closure.
2. Integrity verify (L691): fused blocking .exists() + async metadata()
into a single fs::metadata().await call. Eliminates one stat()
syscall per blob AND removes the only remaining blocking I/O from
the verify_integrity hot loop (buffer_unordered × VERIFY_CONCURRENCY).
causing N × 512KB alloc+memset+dealloc cycles per upload. Moving it
before the loop reuses a single allocation across all chunks.
For a 100-chunk upload this eliminates 99 allocations totalling ~50 MB
of unnecessary memset work.
Rewrite generate_all_sizes_background to use a single spawn_blocking
that decodes the source image once and produces all 3 thumbnail sizes
(Icon 150px, Preview 400px, Large 800px) from the same DynamicImage.
Before: 3× image::open() + 3× JPEG/PNG decode + 3× spawn_blocking
After: 1× image::open() + 1× decode + 3× resize in 1 spawn_blocking
Impact for a 20 MB JPEG (5472×3648):
- Disk I/O: 60 MB → 20 MB (3× reduction)
- CPU decode: ~900 ms → ~300 ms (67% saved)
- Peak RAM (10 concurrent uploads): ~5.4 GB → ~1.8 GB
- spawn_blocking slots: 3 → 1 per upload
Replace separate COUNT and SELECT queries in paginated search with a
single query using PostgreSQL COUNT(*) OVER() window function.
Affected methods:
- search_files_paginated: collapsed 4 branches × 2 queries into a
single dynamic query builder with 1 query per call
- search_files_in_subtree: merged COUNT + SELECT into one query
Additionally, search_files_paginated is now a dynamic query builder
(like search_files_in_subtree was) instead of 4 hardcoded branches,
reducing code from ~240 lines to ~80 lines.
Impact:
- DB round-trips per search: 2 → 1 (50% reduction)
- Latency: ~50% lower per paginated search
- Connection pool pressure: halved for search workloads
- Atomicity: count and data from same snapshot (no race)
Replace BFS traversal that issued 2 SQL queries per folder (list_files +
list_folders) with 2 total queries using PostgreSQL ltree <@ operator:
1. list_subtree_folders: single GiST-indexed scan for all folders
2. list_files_in_subtree: single GiST-indexed join for all files
Files are grouped by folder_id in a HashMap, then iterated in directory
order (folders pre-sorted by path from SQL).
Changes across 4 architecture layers:
- Domain: FolderRepository::list_subtree_folders (default impl)
- Application ports: FolderUseCase, FileRetrievalUseCase, FileReadPort
- Application services: FolderService, FileRetrievalService passthroughs
- Infrastructure: PG implementations + ZipService rewrite
Query count: O(N) → O(1). Latency for 100-folder tree: ~200 round-trips → 3.
- Replace fetch_all() with fetch() streaming cursor in verify_integrity
so memory stays O(batch=16) instead of O(total_blobs)
- Replace fetch_all() with fetch() streaming cursor in garbage_collect
so memory stays O(1) instead of O(orphans)
- Add TryStreamExt import for try_next() on cursors
Eliminates OOM risk with millions of blobs — RAM usage is now constant
regardless of table size.
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