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steveandClaude Opus 4.8 74f6b9a876
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Image normalization package: decode HEIC/webp/png/jpeg → JPEG (#80)
Prerequisite for seed-packet capture (#81). majordomo's media pipeline is
stdlib-based and cannot decode HEIC or webp — and HEIC is the iPhone camera
default, so the capture feature's very first input would fail on the device
that motivates it. Normalizing at the upload boundary means everything
downstream only ever sees JPEG.

internal/imagenorm.Normalize(reader, opts) decodes any of jpeg/png/heic/webp,
downscales to fit MaxDim (2048, ollama-cloud's limit) on the longest edge with
Catmull-Rom (sharp on the text a packet is mostly made of), and re-encodes JPEG.

CGO stays off: github.com/gen2brain/heic runs libheif as WASM via wazero (pure
Go), golang.org/x/image/webp is pure Go. Both register with image.Decode. The
~5 MB these add only links into the binary when #81 imports this package — it's
not pulled into cmd/pansy yet, so main is unchanged in size for now.

Guards against hostile uploads: input capped at MaxBytes (ErrTooLarge) before a
full read, and the decoded pixel count checked from DecodeConfig BEFORE the
bitmap is allocated, so a small file claiming a huge canvas (a decompression
bomb) is refused up front.

TestNormalizeAllFormats round-trips all four formats to a valid JPEG — its real
job is catching a dropped blank import, where the intuition-breaking failure is
that the COMMON format (png) breaks while the exotic one (heic) still works.
heic/webp fixtures live in testdata (Go has no encoder for them); the webp is a
known-good 16x16 from Python's stdlib test corpus, verified to decode.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
Claude-Session: https://claude.ai/code/session_01H3zbym8Doka2d7D48maSgZ
2026-07-21 23:03:40 -04:00

75 lines
3.0 KiB
AMPL

module gitea.stevedudenhoeffer.com/steve/pansy
go 1.26.2
require (
gitea.stevedudenhoeffer.com/steve/majordomo v0.0.0-20260718232210-a941f5ff4a3f
github.com/coreos/go-oidc/v3 v3.20.0
github.com/gen2brain/heic v0.7.1
github.com/gin-gonic/gin v1.10.1
github.com/samber/slog-gin v1.15.0
golang.org/x/crypto v0.36.0
golang.org/x/image v0.44.0
golang.org/x/oauth2 v0.36.0
modernc.org/sqlite v1.34.4
)
require (
cloud.google.com/go v0.116.0 // indirect
cloud.google.com/go/auth v0.9.3 // indirect
cloud.google.com/go/compute/metadata v0.5.0 // indirect
github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
github.com/google/go-cmp v0.6.0 // indirect
github.com/google/s2a-go v0.1.8 // indirect
github.com/googleapis/enterprise-certificate-proxy v0.3.4 // indirect
github.com/gorilla/websocket v1.5.3 // indirect
go.opencensus.io v0.24.0 // indirect
google.golang.org/genai v1.59.0 // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20240903143218-8af14fe29dc1 // indirect
google.golang.org/grpc v1.66.2 // indirect
)
require (
github.com/bytedance/sonic v1.11.9 // indirect
github.com/bytedance/sonic/loader v0.1.1 // indirect
github.com/cloudwego/base64x v0.1.4 // indirect
github.com/cloudwego/iasm v0.2.0 // indirect
github.com/dustin/go-humanize v1.0.1 // indirect
github.com/ebitengine/purego v0.10.1 // indirect
github.com/gabriel-vasile/mimetype v1.4.4 // indirect
github.com/gin-contrib/sse v0.1.0 // indirect
github.com/go-jose/go-jose/v4 v4.1.4 // indirect
github.com/go-playground/locales v0.14.1 // indirect
github.com/go-playground/universal-translator v0.18.1 // indirect
github.com/go-playground/validator/v10 v10.22.0 // indirect
github.com/goccy/go-json v0.10.3 // indirect
github.com/google/uuid v1.6.0 // indirect
github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/klauspost/cpuid/v2 v2.2.8 // indirect
github.com/leodido/go-urn v1.4.0 // indirect
github.com/mattn/go-isatty v0.0.20 // indirect
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
github.com/modern-go/reflect2 v1.0.2 // indirect
github.com/ncruces/go-strftime v0.1.9 // indirect
github.com/pelletier/go-toml/v2 v2.2.2 // indirect
github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
github.com/tetratelabs/wazero v1.12.0 // indirect
github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
github.com/ugorji/go/codec v1.2.12 // indirect
go.opentelemetry.io/otel v1.29.0 // indirect
go.opentelemetry.io/otel/trace v1.29.0 // indirect
golang.org/x/arch v0.8.0 // indirect
golang.org/x/net v0.38.0 // indirect
golang.org/x/sys v0.44.0 // indirect
golang.org/x/text v0.40.0 // indirect
google.golang.org/protobuf v1.34.2 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
modernc.org/gc/v3 v3.0.0-20240107210532-573471604cb6 // indirect
modernc.org/libc v1.55.3 // indirect
modernc.org/mathutil v1.6.0 // indirect
modernc.org/memory v1.8.0 // indirect
modernc.org/strutil v1.2.0 // indirect
modernc.org/token v1.1.0 // indirect
)