MechaCat02 5dc93bfb84 fix(crawler): cap the number of page images per chapter ...

The per-image byte cap bounds each download but not the count, so a
hostile or compromised reader page listing thousands of <img> tags could
drive an unbounded disk fill. Add `CRAWLER_MAX_IMAGES_PER_CHAPTER`
(CrawlerConfig::max_images_per_chapter, default 2000, 0 = disabled) and
reject an over-cap chapter with a failed ack (exponential backoff) rather
than downloading it.

Threaded through sync_chapter_content and its three call sites (daemon
dispatcher, admin resync, CLI); enforced via `image_count_over_cap` right
after parse. The cap is an env-only safety knob, preserved across settings
reloads.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-07-03 21:05:28 +02:00

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