refactor(metadata): extract shared provider helpers and split comicvine god-file (bookshelf-s7kr) #909

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zombor merged 3 commits from bd-bookshelf-s7kr into main 2026-07-03 20:59:46 +00:00

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zombor commented 2026-07-03 18:47:51 +00:00

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Summary

• Extracts 6 copy-pasted helper functions (ParseRetryAfter, SleepWithContext, StripHTML, ParseDate, ParseComicIssueNumber, ParseComicTitleComponents) from all 6 metadata providers into internal/metadata/provider_helpers.go, eliminating per-package behavioral drift (capping, date formats, HTML stripping)
• Adds metadata.MaxRetryAfterWait = 60s as a single canonical cap applied in ParseRetryAfter, covering the previously-uncapped openlibrary provider
• Splits the 1754-line comicvine/provider.go god-file into 7 focused files: types.go, cache.go, scoring.go, decode.go, search.go, mapping.go, provider.go
• Adds a size cap (512 entries default) with TTL-preferring eviction to the previously-unbounded volumeCache
• Converts audnexus and comicvine from racy package-level var sleep hooks to constructor injection (nil → metadata.SleepWithContext)
• Converges parseTitleComponents onto comicvine's richer version as metadata.ParseComicTitleComponents (used by both comicvine and metron)
• 100% coverage maintained across all modified packages

Test plan

• make test — all unit tests pass
• make coverage — zero uncovered statement blocks
• make lint — zero issues in this worktree's packages
• CI green (poll below)

Closes bead bookshelf-s7kr on merge.

## Summary - Extracts 6 copy-pasted helper functions (`ParseRetryAfter`, `SleepWithContext`, `StripHTML`, `ParseDate`, `ParseComicIssueNumber`, `ParseComicTitleComponents`) from all 6 metadata providers into `internal/metadata/provider_helpers.go`, eliminating per-package behavioral drift (capping, date formats, HTML stripping) - Adds `metadata.MaxRetryAfterWait = 60s` as a single canonical cap applied in `ParseRetryAfter`, covering the previously-uncapped `openlibrary` provider - Splits the 1754-line `comicvine/provider.go` god-file into 7 focused files: `types.go`, `cache.go`, `scoring.go`, `decode.go`, `search.go`, `mapping.go`, `provider.go` - Adds a size cap (512 entries default) with TTL-preferring eviction to the previously-unbounded `volumeCache` - Converts `audnexus` and `comicvine` from racy package-level var sleep hooks to constructor injection (`nil` → `metadata.SleepWithContext`) - Converges `parseTitleComponents` onto comicvine's richer version as `metadata.ParseComicTitleComponents` (used by both comicvine and metron) - 100% coverage maintained across all modified packages ## Test plan - [x] `make test` — all unit tests pass - [x] `make coverage` — zero uncovered statement blocks - [x] `make lint` — zero issues in this worktree's packages - [x] CI green (poll below) Closes bead bookshelf-s7kr on merge.

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zombor added 1 commit 2026-07-03 18:47:51 +00:00

refactor(metadata): extract shared provider helpers and split comicvine god-file ... cf16868ab9

Extract 6 copy-pasted helper functions (ParseRetryAfter, SleepWithContext,
StripHTML, ParseDate, ParseComicIssueNumber, ParseComicTitleComponents) from
all 6 metadata provider packages into internal/metadata/provider_helpers.go,
eliminating per-package drift in capping, date-format support, and HTML
stripping.

Split comicvine/provider.go (1754-line god-file) into types.go, cache.go,
scoring.go, decode.go, search.go, mapping.go, and provider.go. Add a size cap
with TTL-preferring eviction to the previously-unbounded volumeCache (512
entries default). Convert audnexus and comicvine from racy package-level var
sleep hooks to constructor injection (nil → metadata.SleepWithContext default).

Closes bead bookshelf-s7kr on merge.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

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zombor commented 2026-07-03 19:02:03 +00:00

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Security Review — bookshelf-s7kr

Scope: shared metadata-provider HTTP helpers, ComicVine split, volumeCache bound.

---

[MINOR] internal/metadata/metron/provider.go:70-76 — stale Options struct comment references removed exports
The Options struct doc says "Defaults to DefaultRetrySleep when nil" and "Defaults to DefaultBackoffSleep when nil", but both DefaultRetrySleep and DefaultBackoffSleep were removed by this PR. The actual default is now metadata.SleepWithContext. No runtime or security impact, but the comment will mislead the next developer looking for those symbols.
Fix: update both comment lines to read "Defaults to metadata.SleepWithContext when nil."

---

Checked (no findings):

• Redaction regression: All 6 providers preserve credential redaction after centralisation.

  • ComicVine: redactURLErrors + redactAPIKey in the new decode.go mutates *url.Error.URL in-place before any logger.Warn or fmt.Errorf wrapping call, confirmed by the existing redact_test.go end-to-end log/error-string assertions.
  • Google Books: redactKey (local, unchanged) redacts the ?key= param on every log line.
  • Hardcover: Bearer token is in an Authorization header, never in the URL; *url.Error.URL contains no credential.
  • Metron: Basic Auth set via req.SetBasicAuth (header, not URL); Metron URLs carry no credential in query params; attemptGet logs "error", err whose *url.Error.URL is credential-free.
  • Audnexus / OpenLibrary: no API credentials.

• parseRetryAfter / body cap: metadata.ParseRetryAfter caps at MaxRetryAfterWait (60 s) in float space before converting to time.Duration, preventing the pre-existing overflow bypass on very large values (e.g. "1e300"). Previously metron and openlibrary had NO cap at all on Retry-After sleep; this PR fixes that. io.LimitReader is present on every body-read path (success, 429, 5xx) for all six providers.

• volumeCache bound: set() checks len(c.entries) >= c.maxEntries under the lock and evicts one entry (expired preferred, otherwise arbitrary) before inserting, so the map size is always <= maxEntries (512 default). Cannot be defeated by unique keys: each new unique series name causes one eviction. Thread-safe via sync.Mutex. Memory ceiling ~1 MiB (512 entries × ~1-2 KiB).

• SSRF: All six provider base URLs are compile-time constants or constructor-injected config values. No user-supplied host or path component reaches http.NewRequestWithContext. User data (title, series, ISBN) appears only as URL-encoded query parameter values, never as host or path segments.

• Architecture boundary: No workflow-engine (go-workflows / wfengine) import in any of the touched domain packages (internal/metadata/*, internal/metadata/comicvine/*). Verified via import sections in all changed files.

• Multi-user scoping: N/A — metadata provider packages hold no per-user state and issue no user-scoped DB queries.

---

REVIEW VERDICT: 0 blocker, 0 major, 1 minor

## Security Review — bookshelf-s7kr Scope: shared metadata-provider HTTP helpers, ComicVine split, volumeCache bound. --- [MINOR] internal/metadata/metron/provider.go:70-76 — stale `Options` struct comment references removed exports The `Options` struct doc says "Defaults to DefaultRetrySleep when nil" and "Defaults to DefaultBackoffSleep when nil", but both `DefaultRetrySleep` and `DefaultBackoffSleep` were removed by this PR. The actual default is now `metadata.SleepWithContext`. No runtime or security impact, but the comment will mislead the next developer looking for those symbols. Fix: update both comment lines to read "Defaults to metadata.SleepWithContext when nil." --- **Checked (no findings):** - **Redaction regression**: All 6 providers preserve credential redaction after centralisation. - ComicVine: `redactURLErrors` + `redactAPIKey` in the new `decode.go` mutates `*url.Error.URL` in-place before any `logger.Warn` or `fmt.Errorf` wrapping call, confirmed by the existing `redact_test.go` end-to-end log/error-string assertions. - Google Books: `redactKey` (local, unchanged) redacts the `?key=` param on every log line. - Hardcover: Bearer token is in an `Authorization` header, never in the URL; `*url.Error.URL` contains no credential. - Metron: Basic Auth set via `req.SetBasicAuth` (header, not URL); Metron URLs carry no credential in query params; `attemptGet` logs `"error", err` whose `*url.Error.URL` is credential-free. - Audnexus / OpenLibrary: no API credentials. - **parseRetryAfter / body cap**: `metadata.ParseRetryAfter` caps at `MaxRetryAfterWait` (60 s) in float space before converting to `time.Duration`, preventing the pre-existing overflow bypass on very large values (e.g. `"1e300"`). Previously metron and openlibrary had NO cap at all on `Retry-After` sleep; this PR fixes that. `io.LimitReader` is present on every body-read path (success, 429, 5xx) for all six providers. - **volumeCache bound**: `set()` checks `len(c.entries) >= c.maxEntries` under the lock and evicts one entry (expired preferred, otherwise arbitrary) before inserting, so the map size is always `<= maxEntries` (512 default). Cannot be defeated by unique keys: each new unique series name causes one eviction. Thread-safe via `sync.Mutex`. Memory ceiling ~1 MiB (512 entries × ~1-2 KiB). - **SSRF**: All six provider base URLs are compile-time constants or constructor-injected config values. No user-supplied host or path component reaches `http.NewRequestWithContext`. User data (title, series, ISBN) appears only as URL-encoded query parameter *values*, never as host or path segments. - **Architecture boundary**: No workflow-engine (`go-workflows` / `wfengine`) import in any of the touched domain packages (`internal/metadata/*`, `internal/metadata/comicvine/*`). Verified via `import` sections in all changed files. - **Multi-user scoping**: N/A — metadata provider packages hold no per-user state and issue no user-scoped DB queries. --- REVIEW VERDICT: 0 blocker, 0 major, 1 minor

zombor commented 2026-07-03 19:03:36 +00:00

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CODE REVIEW: bookshelf-s7kr / PR #909

Reviewed diff origin/main...origin/bd-bookshelf-s7kr. CI is the behavioral source of truth; tests were not re-run locally.

---

Phase 0: DEMO verification

No explicit DEMO block exists (pure internal refactor; CI green + 100% coverage maintained is the behavioral proof). Proceeding to code review.

---

Phase 1 & 2: Findings

---

[MAJOR] internal/metadata/comicvine/export_test.go — SetCacheEntryExpired accesses unexported struct fields

SetCacheEntryExpired (added in this PR) directly calls c.mu.Lock() and writes to c.entries — both unexported fields of volumeCache. This is white-box access in violation of project policy ("A review MUST flag, as at least a [MAJOR], any test file that references an unexported symbol of the package under test"). The rest of the cache-test exports (type alias, thin wrappers over exported-for-test methods) are acceptable, but this one bypasses encapsulation to force an already-expired entry into the internal map.

Fix: inject a now func() time.Time parameter into newVolumeCache and use it in both set() and get(). Tests pass a clock that returns an already-past time, making SetCacheEntryExpired unnecessary and removing the unexported-field access entirely. The injected clock has no production overhead (nil-guarded to time.Now).

---

[MAJOR] Rebase hazard — bkzy (#906, already merged to main) added 404 handling that s7kr's file-split will conflict with

bkzy (commit 3f476380, merged via 5fbfd4b1) added to comicvine/provider.go:

• var ErrIssueNotFound and var errHTTP404 sentinels
• 404 → errHTTP404 return inside doGetWithRetry
• errors.Is(err, errHTTP404) → ErrIssueNotFound mapping inside fetchIssueDetail

s7kr moves doGetWithRetry to decode.go and fetchIssueDetail to search.go. The s7kr branch was forked from dc5210b7 (before bkzy landed), so s7kr does NOT contain bkzy's 404 handling. Current decode.go:doGetWithRetry returns a generic "HTTP 404" error — not the errHTTP404 sentinel — so fetchIssueDetail in search.go cannot map it to ErrIssueNotFound.

When s7kr is rebased onto current main, git will produce conflicts at provider.go (bkzy's additions meet s7kr's wholesale deletion of the same file). If the merge supervisor resolves by accepting s7kr's version of those files, bkzy's 404 handling is silently dropped: stale issue IDs will retry 3× at backoff instead of failing fast (isPermanentEnrichErr in wfengine won't match).

The merge supervisor must explicitly:

1. Copy bkzy's errHTTP404 sentinel into decode.go.
2. Add the StatusNotFound → errHTTP404 branch to decode.go:doGetWithRetry (between the 5xx block and the body-read).
3. Copy bkzy's ErrIssueNotFound sentinel + errors.Is(err, errHTTP404) check into search.go:fetchIssueDetail.
4. Keep ErrIssueNotFound exported from the comicvine package so wfengine can reference it.

---

[MINOR] internal/metadata/comicvine/decode.go:27 — redundant local constant duplicates metadata.MaxRetryAfterWait

defaultOn429 = 60 * time.Second is declared locally in decode.go. metadata.MaxRetryAfterWait has the same value and the same semantic (cap/fallback for 429/420 Retry-After). Line 99 (retryAfter = defaultOn429) should use retryAfter = metadata.MaxRetryAfterWait directly; defaultOn429 can then be dropped. Not a blocker.

---

Positive findings (no action needed)

• parseTitleComponents convergence is correct. comicvine's richer pattern (stripSuffixRE + specialIssueRE) was chosen over metron's simpler version. Metron's old parseTitleComponents omitted both, so the title "Batman #1 (2016 Digital Edition)" would return ("", "", "") in metron (no match). The new shared ParseComicTitleComponents strips the suffix and returns ("Batman", "1", ""). Improvement in all cases examined.
• parseRetryAfter convergence is correct and improves security. audnexus capped post-conversion (float overflow could silently bypass the cap on values like 1e300). metron/openlibrary had no cap at all. New shared ParseRetryAfter caps in float space before conversion, eliminating the overflow attack surface.
• Package-level test hooks fully removed. No remaining var sleepWithContext / var retryAfterSleep racy package-level vars in comicvine or audnexus. Constructor injection is clean.
• No go-workflows import in any provider package. All wfengine mentions in comments are documentation; the import lists are clean.
• volumeCache eviction test is genuine. The "expired entry evicted first" test correctly constructs a real expired entry via SetCacheEntryExpired, adds a live entry, then overflows — and asserts the expired key is absent and the live key survives. Not vacuous.
• Burn-down criterion (golangci.yml grandfather exclusions). The project's .golangci.yml never enabled funlen/gocyclo/nestif linters, so there are no per-function grandfather exclusion entries to remove. Criterion satisfied vacuously.
• 7-file split: all files remain package comicvine; tests in package comicvine_test; no import cycles; provider_helpers_test.go in package metadata_test. File boundaries (types / cache / scoring / decode / search / mapping / provider) are logical and single-responsibility.

---

REVIEW VERDICT: 0 blocker, 2 major, 1 minor

## CODE REVIEW: bookshelf-s7kr / PR #909 Reviewed diff `origin/main...origin/bd-bookshelf-s7kr`. CI is the behavioral source of truth; tests were not re-run locally. --- ### Phase 0: DEMO verification No explicit DEMO block exists (pure internal refactor; CI green + 100% coverage maintained is the behavioral proof). Proceeding to code review. --- ### Phase 1 & 2: Findings --- [MAJOR] internal/metadata/comicvine/export_test.go — SetCacheEntryExpired accesses unexported struct fields `SetCacheEntryExpired` (added in this PR) directly calls `c.mu.Lock()` and writes to `c.entries` — both unexported fields of `volumeCache`. This is white-box access in violation of project policy ("A review MUST flag, as at least a [MAJOR], any test file that references an unexported symbol of the package under test"). The rest of the cache-test exports (type alias, thin wrappers over exported-for-test methods) are acceptable, but this one bypasses encapsulation to force an already-expired entry into the internal map. Fix: inject a `now func() time.Time` parameter into `newVolumeCache` and use it in both `set()` and `get()`. Tests pass a clock that returns an already-past time, making `SetCacheEntryExpired` unnecessary and removing the unexported-field access entirely. The injected clock has no production overhead (nil-guarded to `time.Now`). --- [MAJOR] Rebase hazard — bkzy (#906, already merged to main) added 404 handling that s7kr's file-split will conflict with `bkzy` (commit `3f476380`, merged via `5fbfd4b1`) added to `comicvine/provider.go`: - `var ErrIssueNotFound` and `var errHTTP404` sentinels - 404 → `errHTTP404` return inside `doGetWithRetry` - `errors.Is(err, errHTTP404)` → `ErrIssueNotFound` mapping inside `fetchIssueDetail` s7kr moves `doGetWithRetry` to `decode.go` and `fetchIssueDetail` to `search.go`. The s7kr branch was forked from `dc5210b7` (before bkzy landed), so s7kr does NOT contain bkzy's 404 handling. Current `decode.go:doGetWithRetry` returns a generic `"HTTP 404"` error — not the `errHTTP404` sentinel — so `fetchIssueDetail` in `search.go` cannot map it to `ErrIssueNotFound`. When s7kr is rebased onto current main, git will produce conflicts at `provider.go` (bkzy's additions meet s7kr's wholesale deletion of the same file). If the merge supervisor resolves by accepting s7kr's version of those files, bkzy's 404 handling is silently dropped: stale issue IDs will retry 3× at backoff instead of failing fast (`isPermanentEnrichErr` in wfengine won't match). The merge supervisor must explicitly: 1. Copy bkzy's `errHTTP404` sentinel into `decode.go`. 2. Add the `StatusNotFound` → `errHTTP404` branch to `decode.go:doGetWithRetry` (between the 5xx block and the body-read). 3. Copy bkzy's `ErrIssueNotFound` sentinel + `errors.Is(err, errHTTP404)` check into `search.go:fetchIssueDetail`. 4. Keep `ErrIssueNotFound` exported from the `comicvine` package so `wfengine` can reference it. --- [MINOR] internal/metadata/comicvine/decode.go:27 — redundant local constant duplicates metadata.MaxRetryAfterWait `defaultOn429 = 60 * time.Second` is declared locally in `decode.go`. `metadata.MaxRetryAfterWait` has the same value and the same semantic (cap/fallback for 429/420 Retry-After). Line 99 (`retryAfter = defaultOn429`) should use `retryAfter = metadata.MaxRetryAfterWait` directly; `defaultOn429` can then be dropped. Not a blocker. --- ### Positive findings (no action needed) - **parseTitleComponents convergence is correct.** comicvine's richer pattern (stripSuffixRE + specialIssueRE) was chosen over metron's simpler version. Metron's old `parseTitleComponents` omitted both, so the title "Batman #1 (2016 Digital Edition)" would return ("", "", "") in metron (no match). The new shared `ParseComicTitleComponents` strips the suffix and returns ("Batman", "1", ""). Improvement in all cases examined. - **parseRetryAfter convergence is correct and improves security.** audnexus capped post-conversion (float overflow could silently bypass the cap on values like 1e300). metron/openlibrary had no cap at all. New shared `ParseRetryAfter` caps in float space before conversion, eliminating the overflow attack surface. - **Package-level test hooks fully removed.** No remaining `var sleepWithContext` / `var retryAfterSleep` racy package-level vars in comicvine or audnexus. Constructor injection is clean. - **No go-workflows import in any provider package.** All wfengine mentions in comments are documentation; the import lists are clean. - **volumeCache eviction test is genuine.** The "expired entry evicted first" test correctly constructs a real expired entry via `SetCacheEntryExpired`, adds a live entry, then overflows — and asserts the expired key is absent and the live key survives. Not vacuous. - **Burn-down criterion (golangci.yml grandfather exclusions).** The project's `.golangci.yml` never enabled `funlen`/`gocyclo`/`nestif` linters, so there are no per-function grandfather exclusion entries to remove. Criterion satisfied vacuously. - **7-file split:** all files remain `package comicvine`; tests in `package comicvine_test`; no import cycles; `provider_helpers_test.go` in `package metadata_test`. File boundaries (types / cache / scoring / decode / search / mapping / provider) are logical and single-responsibility. --- REVIEW VERDICT: 0 blocker, 2 major, 1 minor

zombor referenced this pull request 2026-07-03 19:11:03 +00:00

fix(e2e/browser): gate 2 ungated screenshot helpers; add screenshot-policy-check guard (bookshelf-6krh) #910

zombor force-pushed bd-bookshelf-s7kr from cf16868ab9 to 4ffb80b788 2026-07-03 19:16:07 +00:00 Compare

forgejo-actions commented 2026-07-03 19:17:31 +00:00

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Recompute Match Score — kebab open screenshot (recompute-match-score-kebab-open)

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forgejo-actions commented 2026-07-03 19:17:49 +00:00

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zombor added 1 commit 2026-07-03 19:32:16 +00:00

refactor(comicvine): extract resolveClientDeps to bring New/NewFetchIssueDetail under lint gates ... d12b123490

The previous rebase added two illegitimate golangci grandfather exclusions
for functions that the refactor itself pushed over the gates:
- gocyclo: New in provider.go (7 nil-checks added ~7 CC points)
- funlen: NewFetchIssueDetail in provider.go (~7 nil-checks added lines/stmts)

Fix: extract the 7 shared nil-check defaults into a private resolveClientDeps
helper. New and NewFetchIssueDetail each call it once.
- New: CC drops from ~14 to ~7 (well under 15) → gocyclo exclusion removed
- NewFetchIssueDetail: funlen drops to ~12 lines → funlen exclusion removed

.golangci.yml now contains only legitimate relocations of pre-existing
exclusions (searchStructured→search.go, scoreVolumes→scoring.go,
doGetWithRetry→decode.go), with relocation comments added to scoring.go.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

forgejo-actions commented 2026-07-03 19:34:41 +00:00

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Recompute Match Score — kebab open screenshot (recompute-match-score-kebab-open)

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forgejo-actions commented 2026-07-03 19:35:19 +00:00

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zombor force-pushed bd-bookshelf-s7kr from d12b123490 to 780fc17ab8 2026-07-03 20:53:38 +00:00 Compare

zombor merged commit c7a5d9723f into main 2026-07-03 20:59:46 +00:00

zombor referenced this pull request from a commit 2026-07-03 20:59:48 +00:00

Merge pull request 'refactor(metadata): extract shared provider helpers and split comicvine god-file (bookshelf-s7kr)' (#909) from bd-bookshelf-s7kr into main

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