New package handling HTTP POST contact forms: ordered []Field config
(GravityForms-compatible input_N defaults), MaxBytesReader body cap,
geoip+ipcohort gating, X-Forwarded-For trust via TrustedProxies CIDRs,
and SMTP submission over STARTTLS. EHLO LocalName is split from the
NewClient peer host so the client identifies itself correctly while
PlainAuth still binds to the real server name. Hot-reloadable success/
error response bodies via func() []byte. Includes a fake-SMTP integration
test that catches StartTLS(nil) regressions.
- Downloads all editions listed in a GeoIP.conf
- Flags: -config, -dir, -fresh-days, -base-url (override
DownloadBase for custom mirror/proxy), -V/--version, -help
- Version output shows name, version, commit, date, copyright and
license (populated via ldflags at build time)
- Uses Basic auth with split credential encoding for readability
- ETag/Last-Modified caching via httpcache
Add a Go package for reading MaxMind GeoLite2 City and ASN databases.
- ParseConf: parses geoipupdate-style config files (AccountID,
LicenseKey, EditionIDs, DatabaseDirectory)
- Databases: holds open City + ASN readers; Open() loads both
editions from a directory, extracting .mmdb from tar.gz in memory
without writing to disk
- FindTarGz: resolves cache paths, preferring *_LATEST.tar.gz
- Lookup: returns city, region, country, ASN, and AS org for an IP
- DownloadBase constant, TarGzName helper, DefaultConfPaths and
DefaultCacheDir conveniences
Integration tests verify download and conditional-get freshness.
Conditional GET cache for periodic data sources. Persists ETag and
Last-Modified to a .meta sidecar so 304s survive process restarts.
Two independent rate-limit gates (MaxAge file-mtime, MinInterval
in-memory). Body cap via MaxBytes defends against fill-disk from a
hostile upstream or redirect target. Authorization (and any
caller-supplied) headers stripped on every redirect hop. Userinfo
in URL is redacted from error messages.
PrefixSet: git-backed CIDR files via gitshallow, refreshed every 47 min.
DomainSet: takes pre-parsed (staticPrefixes, domains []string); resolves
hostnames every 5 min, retaining stale IPs on failure. Both use
atomic-swapped ipcohort.Cohort for lock-free reads.
ParseDomainSet(RecordReader) parses rows into prefixes and hostnames;
caller constructs the record reader (e.g. csv.Reader with delimiter,
comment char). RecordReader interface is satisfied by *csv.Reader.
commaify uses plain string concat (integers max ~7 groups).
Resolves A, CNAME chain, and SRV records via miekg/dns. Queries all
configured servers in parallel and returns the first success. Falls
back to OpenDNS/Cloudflare/Quad9 when /etc/resolv.conf is absent or empty.
- Default depth changed from 1 to 3: enough overlap for delta
compression even if the remote pushes 2 commits between fetches
- Keep --depth on fetch (not just clone) so shallow stays windowed
- GCInterval default changed: 0 now means every fetch (was disabled)
- GC sequence: reflog expire → prune → gc --prune=now
Expire makes old shallow entries' objects unreachable, prune removes
them cheaply (5MB RSS), then gc delta-compresses what remains (~10MB)
- Only GC when HEAD actually changed (skip no-op fetches)
- Dropped GCAggressive (no benefit in shallow clones)
Periodically-updated shallow clone for repos used as a data source.
One Fetch verb (clone-or-pull-or-skip) drives both the Fetcher
interface and per-File handles. MaxAge gates on FETCH_HEAD mtime so
short-lived CLI invocations don't hammer the remote across process
restarts; an in-memory 1s debounce coalesces concurrent Fetches.
Hardens git invocations against argument injection: validates
branch/ref shape, rejects URLs starting with '-', and uses '--'
separators before positional args. Userinfo in URL is redacted from
error output (both args echo and git's own messages).
IPv4 host + CIDR membership testing backed by sorted /32 binary search
and a linear scan of CIDR ranges. CSV/text loader with bounded reads
(maxBytes is required so callers pick a limit appropriate to their
input source — 1 KB allowlists through 100+ MB threat feeds). Returns
errors for unparseable IPs so callers can decide fail-open vs
fail-closed; partial cohorts are returned alongside parse errors.
