Development Update — April 1

Skycoin: Explorer Fixes for Fibercoin Support

Explorer blocks page fix — the explorer’s blocks page was showing “Error loading data” silently. The root cause was that getBlocks was being called without the verbose=1 parameter, so transaction inputs were returned as bare UXID strings instead of objects with owner/coins/hours fields. The frontend’s parseGenericTransaction would fail silently on the bare strings. Fixed by adding verbose=1 to the API call.

Content-Type header ordering — a subtle bug in the explorer proxy: Content-Type was being set after WriteHeader, so the header was never actually sent to clients. Fixed to set Content-Type before WriteHeader.

Security update — serialize-javascript bumped from 7.0.4 to 7.0.5 (security fix).

Fibercoin-aware default node address — when FIBER_TOML is set and SKYCOIN_ADDR is not, the explorer now reads the fiber config’s web_interface_port to construct the default node URL. This means running the explorer against AIX (port 8320) or any other Fibercoin just works without needing to manually specify --node-addr. Before this fix, the explorer always defaulted to Skycoin’s port 6420.

Skywire: Route Calculation OOM Fix

A serious scaling bug: the recursive DeepFirstSearch used by the route calculator was exploring the entire reachable network graph (11,000+ transports), causing OOM errors and near-lockup on the setup node (#2270).

The fix — converted the recursive DFS to iterative with an explicit stack, added a MaxGraphDepth limit (default 10, configurable via --max flag), and reduced the default --max hops from 1,000 to 5.

The old code was essentially trying to find every possible route through the network before picking one, which is exponential in graph size. The new code bounds the search depth and returns much faster with equally usable routes — most real-world routes are only a few hops anyway.

Skywire: Whitelisted Key File Access in Rewards UI

File access via whitelisted keys (#2268) — the rewards UI now exposes clickable file links when accessed via a whitelisted public key:

• /log-collection/tree: file links for each visor
• /log-collection/tree/:pk: file listing with download links
• /log-collection/file/:pk/:filename: new auth-protected endpoint serving individual log/survey files
• /skycoin-rewards/hist/:date: raw file links

An isWhitelisted() helper provides non-blocking whitelist checks in public routes. This gives reward system operators direct access to per-visor logs and surveys without requiring SSH access to the reward server.

Flaky CXO tests — the CXO subscribe tests were flaky because they used fixed sleeps to wait for event propagation. Replaced with event-driven subscribe with retry.

Skywire: Config Gen Flags and SKYENV Refactor

Missing config gen flags added (#2267) — PROXYSERVERWL and VPNSERVERWL are now wired as array-style config variables instead of hidden env var strings. Dead password config entries (PROXYSERVERPASS, VPNCLIENTPASS, etc.) were removed. NOPROXYSERVER was renamed to PROXYSERVER with correct default-true semantics, matching the VPNSERVER pattern.

Skychat flags — SKYCHAT and SKYCHATADDR config variables with --servechat and --chataddr flags.

Advanced tuning flags — visible with --all: --hvaddr, --stun, --timeout, --regtimeout, --maxtransports, --muxroutes.

scriptExec refactor — extracted common scriptExecValue and scriptExecSlice core functions. Fixed a Windows array bug (inverted len check), fixed PowerShell quoting, and made default parsing consistent via parseDefault. Unit tests and integration tests for config gen covering defaults, flag overrides, and SKYENV file sourcing were added.