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pixa/TODO.md
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Support SVG sources (closes #68)
The fetcher accepts image/svg+xml; internal/magic detects SVG. orig of
an SVG at the orig size is the SVG unchanged, cached, with a
Content-Security-Policy allowing only its styles and data: images; at
another size, ErrSVGNotOriginalSize (400). Any other format renders it
at the least size covering the output, at most 8192 on a side, so it
stays sharp. Rendering refuses an SVG with a side over 8192 times the
other (ErrSVGTooThin, 415), and the orig size of one above 8192 on a
side (ErrSVGTooLargeForOrigSize, 400). The cache reads up to 1024 first
bytes to find a file's format. Tests pinning the SVG refusal now expect
SVG. Render time and memory are unbounded: P1 in TODO.md until the
owner decides on #68.

Model: opus-5-5
2026-11-11 16:42:08 +00:00

1.2 KiB

Workflow

  • branch per issue from next
  • do the work in Next Step
  • delete Next Step from TODO.md
  • TODO.md merges with git's union merge (.gitattributes), which never reports a conflict: read the merged entries after every merge or rebase
  • move the top item of Future Steps into Next Step
  • commit (TODO.md changes in the same commit as the work)
  • open a PR based on next
  • an independent reviewer who did not write the change gates it
  • the manager squash-merges the PR into next once review passes
  • next stays green and mergeable to main at any time; only the owner merges next into main, via the single milestone PR
  • push

Status

pre-1.0. The 1.0.0 milestone is in progress.

Next Step

P1: security: bound the time and memory of rendering an SVG source. Both grow with what the SVG draws, such as filter effects. govips cannot stop or limit a render. The bound is the owner's decision on #68.

Future Steps

  • P2: security
    • per-origin rate limiting
  • P2: HTTP response handling
    • Last-Modified headers
  • P2: operational
    • measure the 1k to 5k req/s target with script/loadtest on a machine not shared with other work