feat: switch to Go libraries for avatar conversion instead of ImageMagick
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B4EF20DDE721CAA1
4 changed files with 36 additions and 97 deletions
2
Makefile
2
Makefile
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@ -2,7 +2,7 @@ all: generate backend frontend
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.PHONY: backend
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backend:
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CGO_ENABLED=0 go build -v -o pronouns -ldflags="-buildid= -X codeberg.org/u1f320/pronouns.cc/backend/server.Revision=`git rev-parse --short HEAD` -X codeberg.org/u1f320/pronouns.cc/backend/server.Tag=`git describe --tags --long`" .
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go build -v -o pronouns -ldflags="-buildid= -X codeberg.org/u1f320/pronouns.cc/backend/server.Revision=`git rev-parse --short HEAD` -X codeberg.org/u1f320/pronouns.cc/backend/server.Tag=`git describe --tags --long`" .
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.PHONY: generate
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generate:
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@ -6,13 +6,19 @@ import (
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"crypto/sha256"
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"encoding/base64"
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"encoding/hex"
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"image"
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_ "image/gif"
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"image/jpeg"
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_ "image/png"
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"io"
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"os/exec"
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"strings"
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"emperror.dev/errors"
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"github.com/disintegration/imaging"
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"github.com/minio/minio-go/v7"
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"github.com/rs/xid"
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"github.com/chai2010/webp"
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)
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var (
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@ -25,8 +31,8 @@ const ErrInvalidContentType = errors.Sentinel("invalid avatar content type")
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// ConvertAvatar parses an avatar from a data URI, converts it to WebP and JPEG, and returns the results.
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func (db *DB) ConvertAvatar(data string) (
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webp *bytes.Buffer,
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jpg *bytes.Buffer,
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webpOut *bytes.Buffer,
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jpgOut *bytes.Buffer,
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err error,
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) {
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data = strings.TrimSpace(data)
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@ -34,113 +40,36 @@ func (db *DB) ConvertAvatar(data string) (
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return nil, nil, ErrInvalidDataURI
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}
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split := strings.Split(data, ",")
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rest, b64 := split[0], split[1]
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rest = strings.Split(rest, ":")[1]
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contentType := strings.Split(rest, ";")[0]
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var contentArg []string
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switch contentType {
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case "image/png":
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contentArg = []string{"png:-"}
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case "image/jpeg":
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contentArg = []string{"jpg:-"}
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case "image/gif":
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contentArg = []string{"gif:-"}
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case "image/webp":
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contentArg = []string{"webp:-"}
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default:
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return nil, nil, ErrInvalidContentType
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}
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rawData, err := base64.StdEncoding.DecodeString(b64)
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rawData, err := base64.StdEncoding.DecodeString(split[1])
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if err != nil {
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return nil, nil, errors.Wrap(err, "invalid base64 data")
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}
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// create webp convert command and get its pipes
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webpConvert := exec.Command("convert", append(contentArg, webpArgs...)...)
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stdIn, err := webpConvert.StdinPipe()
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img, _, err := image.Decode(bytes.NewReader(rawData))
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if err != nil {
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return nil, nil, errors.Wrap(err, "getting webp stdin")
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}
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stdOut, err := webpConvert.StdoutPipe()
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if err != nil {
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return nil, nil, errors.Wrap(err, "getting webp stdout")
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return nil, nil, errors.Wrap(err, "decodign image")
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}
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// start webp command
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err = webpConvert.Start()
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resized := imaging.Fill(img, 512, 512, imaging.Center, imaging.Linear)
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webpOut = new(bytes.Buffer)
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err = webp.Encode(webpOut, resized, &webp.Options{
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Quality: 90,
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})
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if err != nil {
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return nil, nil, errors.Wrap(err, "starting webp command")
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return nil, nil, errors.Wrap(err, "encoding WebP image")
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}
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// write data
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_, err = stdIn.Write(rawData)
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jpgOut = new(bytes.Buffer)
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err = jpeg.Encode(jpgOut, resized, &jpeg.Options{
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Quality: 80,
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})
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if err != nil {
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return nil, nil, errors.Wrap(err, "writing webp data")
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}
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err = stdIn.Close()
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if err != nil {
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return nil, nil, errors.Wrap(err, "closing webp stdin")
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return nil, nil, errors.Wrap(err, "encoding JPEG image")
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}
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// read webp output
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webpBuffer := new(bytes.Buffer)
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_, err = io.Copy(webpBuffer, stdOut)
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if err != nil {
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return nil, nil, errors.Wrap(err, "reading webp data")
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}
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webp = webpBuffer
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// finish webp command
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err = webpConvert.Wait()
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if err != nil {
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return nil, nil, errors.Wrap(err, "running webp command")
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}
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// create jpg convert command and get its pipes
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jpgConvert := exec.Command("convert", append(contentArg, jpgArgs...)...)
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stdIn, err = jpgConvert.StdinPipe()
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if err != nil {
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return nil, nil, errors.Wrap(err, "getting jpg stdin")
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}
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stdOut, err = jpgConvert.StdoutPipe()
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if err != nil {
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return nil, nil, errors.Wrap(err, "getting jpg stdout")
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}
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// start jpg command
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err = jpgConvert.Start()
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if err != nil {
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return nil, nil, errors.Wrap(err, "starting jpg command")
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}
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// write data
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_, err = stdIn.Write(rawData)
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if err != nil {
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return nil, nil, errors.Wrap(err, "writing jpg data")
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}
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err = stdIn.Close()
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if err != nil {
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return nil, nil, errors.Wrap(err, "closing jpg stdin")
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}
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// read jpg output
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jpgBuffer := new(bytes.Buffer)
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_, err = io.Copy(jpgBuffer, stdOut)
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if err != nil {
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return nil, nil, errors.Wrap(err, "reading jpg data")
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}
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jpg = jpgBuffer
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// finish jpg command
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err = jpgConvert.Wait()
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if err != nil {
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return nil, nil, errors.Wrap(err, "running jpg command")
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}
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return webp, jpg, nil
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return webpOut, jpgOut, nil
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}
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func (db *DB) WriteUserAvatar(ctx context.Context,
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3
go.mod
3
go.mod
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@ -6,6 +6,8 @@ require (
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emperror.dev/errors v0.8.1
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github.com/Masterminds/squirrel v1.5.2
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github.com/bwmarrin/discordgo v0.25.0
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github.com/chai2010/webp v1.1.1
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github.com/disintegration/imaging v1.6.2
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github.com/georgysavva/scany v0.3.0
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github.com/go-chi/chi/v5 v5.0.7
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github.com/go-chi/httprate v0.5.3
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@ -56,6 +58,7 @@ require (
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go.uber.org/atomic v1.7.0 // indirect
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go.uber.org/multierr v1.6.0 // indirect
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golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa // indirect
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golang.org/x/image v0.0.0-20211028202545-6944b10bf410 // indirect
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golang.org/x/net v0.0.0-20220722155237-a158d28d115b // indirect
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golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f // indirect
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golang.org/x/text v0.3.7 // indirect
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7
go.sum
7
go.sum
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@ -62,6 +62,8 @@ github.com/bwmarrin/discordgo v0.25.0/go.mod h1:NJZpH+1AfhIcyQsPeuBKsUtYrRnjkyu0
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github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
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github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
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github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
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github.com/chai2010/webp v1.1.1 h1:jTRmEccAJ4MGrhFOrPMpNGIJ/eybIgwKpcACsrTEapk=
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github.com/chai2010/webp v1.1.1/go.mod h1:0XVwvZWdjjdxpUEIf7b9g9VkHFnInUSYujwqTLEuldU=
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github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
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github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
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github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
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@ -85,6 +87,8 @@ github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
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github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/denisenkom/go-mssqldb v0.9.0/go.mod h1:xbL0rPBG9cCiLr28tMa8zpbdarY27NDyej4t/EjAShU=
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github.com/disintegration/imaging v1.6.2 h1:w1LecBlG2Lnp8B3jk5zSuNqd7b4DXhcjwek1ei82L+c=
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github.com/disintegration/imaging v1.6.2/go.mod h1:44/5580QXChDfwIclfc/PCwrr44amcmDAg8hxG0Ewe4=
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github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo=
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github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
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github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
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@ -520,6 +524,9 @@ golang.org/x/exp v0.0.0-20200207192155-f17229e696bd/go.mod h1:J/WKrq2StrnmMY6+EH
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golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMkUooju7aAi5cS1Q23tOzKc+0MU=
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golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
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golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
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golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
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golang.org/x/image v0.0.0-20211028202545-6944b10bf410 h1:hTftEOvwiOq2+O8k2D5/Q7COC7k5Qcrgc2TFURJYnvQ=
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golang.org/x/image v0.0.0-20211028202545-6944b10bf410/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
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golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
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golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
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golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
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