...

Author: dhvcc

bindata.go

@@ -0,0 +1,13 @@
+module dhvcc/resize
+
+go 1.16
+
+require (
+	github.com/andybalholm/brotli v1.0.3 // indirect
+	github.com/aws/aws-lambda-go v1.26.0 // indirect
+	github.com/disintegration/imaging v1.6.2 // indirect
+	github.com/go-bindata/go-bindata v3.1.2+incompatible // indirect
+	github.com/klauspost/compress v1.13.5 // indirect
+	github.com/valyala/fasthttp v1.29.0 // indirect
+	golang.org/x/image v0.0.0-20210628002857-a66eb6448b8d // indirect
+)

go.mod

@@ -0,0 +1,47 @@
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/andybalholm/brotli v1.0.2/go.mod h1:loMXtMfwqflxFJPmdbJO0a3KNoPuLBgiu3qAvBg8x/Y=
+github.com/andybalholm/brotli v1.0.3 h1:fpcw+r1N1h0Poc1F/pHbW40cUm/lMEQslZtCkBQ0UnM=
+github.com/andybalholm/brotli v1.0.3/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
+github.com/aws/aws-lambda-go v1.26.0 h1:6ujqBpYF7tdZcBvPIccs98SpeGfrt/UOVEiexfNIdHA=
+github.com/aws/aws-lambda-go v1.26.0/go.mod h1:jJmlefzPfGnckuHdXX7/80O3BvUUi12XOkbv4w9SGLU=
+github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
+github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/disintegration/imaging v1.6.2 h1:w1LecBlG2Lnp8B3jk5zSuNqd7b4DXhcjwek1ei82L+c=
+github.com/disintegration/imaging v1.6.2/go.mod h1:44/5580QXChDfwIclfc/PCwrr44amcmDAg8hxG0Ewe4=
+github.com/go-bindata/go-bindata v3.1.2+incompatible h1:5vjJMVhowQdPzjE1LdxyFF7YFTXg5IgGVW4gBr5IbvE=
+github.com/go-bindata/go-bindata v3.1.2+incompatible/go.mod h1:xK8Dsgwmeed+BBsSy2XTopBn/8uK2HWuGSnA11C3Joo=
+github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
+github.com/klauspost/compress v1.13.4/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
+github.com/klauspost/compress v1.13.5 h1:9O69jUPDcsT9fEm74W92rZL9FQY7rCdaXVneq+yyzl4=
+github.com/klauspost/compress v1.13.5/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/urfave/cli/v2 v2.2.0/go.mod h1:SE9GqnLQmjVa0iPEY0f1w3ygNIYcIJ0OKPMoW2caLfQ=
+github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
+github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
+github.com/valyala/fasthttp v1.29.0 h1:F5GKpytwFk5OhCuRh6H+d4vZAcEeNAwPTdwQnm6IERY=
+github.com/valyala/fasthttp v1.29.0/go.mod h1:2rsYD01CKFrjjsvFxx75KlEUNpWNBY9JWD3K/7o2Cus=
+github.com/valyala/tcplisten v1.0.0/go.mod h1:T0xQ8SeCZGxckz9qRXTfG43PvQ/mcWh7FwZEA7Ioqkc=
+golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a/go.mod h1:P+XmwS30IXTQdn5tA2iutPOUgjI07+tq3H3K9MVA1s8=
+golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
+golang.org/x/image v0.0.0-20210628002857-a66eb6448b8d h1:RNPAfi2nHY7C2srAV8A49jpsYr0ADedCk1wq6fTMTvs=
+golang.org/x/image v0.0.0-20210628002857-a66eb6448b8d/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
+golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
+golang.org/x/net v0.0.0-20210510120150-4163338589ed/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210514084401-e8d321eab015/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

go.sum

@@ -0,0 +1,84 @@
+package main
+
+import (
+	"bytes"
+	"context"
+	"crypto/tls"
+	"encoding/base64"
+	"fmt"
+	"github.com/aws/aws-lambda-go/events"
+	"github.com/aws/aws-lambda-go/lambda"
+	"github.com/disintegration/imaging"
+	"image"
+	"image/color"
+	"net/http"
+	"time"
+)
+
+const width = 1200
+const height = 630
+const minHeight = 250
+
+func convertImage(url string) image.Image {
+	fmt.Printf("====> Should convert url: %s.\n", url)
+	asset, err := Asset("logo.png")
+	if err != nil {
+		return imaging.New(1, 1, color.Black)
+	}
+	background, _ := imaging.Decode(bytes.NewReader(asset))
+
+	fmt.Printf("Started request.\n")
+	tr := &http.Transport{}
+	tr.TLSClientConfig = &tls.Config{
+		NextProtos: []string{"h1"},
+	}
+
+	client := &http.Client{
+		Timeout:   5 * time.Second,
+		Transport: tr,
+	}
+	imageResp, err := client.Get(url)
+	if err != nil {
+		panic(err)
+	}
+	fmt.Println(imageResp)
+	//imageResp, _ := http.Get(url)
+	//defer imageResp.Body.Close()
+
+	fmt.Printf("Finished request.\n")
+	image, _ := imaging.Decode(imageResp.Body)
+	image_h := image.Bounds().Max.Y
+
+	if image_h < minHeight {
+		image = imaging.Resize(image, 0, minHeight, imaging.Lanczos)
+		image_h = image.Bounds().Max.Y
+	}
+
+	output := imaging.Resize(background, 0, image_h, imaging.Lanczos)
+	output = imaging.PasteCenter(output, image)
+	fmt.Printf("====> Returning request.\n")
+	return image
+}
+
+func encodeImage(image image.Image) string {
+	var buf bytes.Buffer
+	fmt.Printf("====> Start encoding.\n")
+	b64encoder := base64.NewEncoder(base64.StdEncoding, &buf)
+	imaging.Encode(b64encoder, image, imaging.JPEG)
+	b64encoder.Close()
+	encoded := buf.String()
+	fmt.Printf("====> Ended encoding.\n")
+	return encoded
+}
+
+func HandleRequest(ctx context.Context, request events.APIGatewayProxyRequest) (events.APIGatewayProxyResponse, error) {
+	fmt.Printf("Processing request data for request %s.\n", request.RequestContext.RequestID)
+	body := encodeImage(convertImage(request.QueryStringParameters["image"]))
+	headers := map[string]string{"content-type": "image/png"}
+
+	return events.APIGatewayProxyResponse{Body: body, StatusCode: 200, Headers: headers}, nil
+}
+
+func main() {
+	lambda.Start(HandleRequest)
+}

lambda.go

@@ -0,0 +1,33 @@
+package main
+
+import (
+  "net/http"
+  "github.com/disintegration/imaging"
+  "bytes"
+)
+
+const width = 1200
+const height = 630
+const minHeight = 250
+
+const mangaUrl = "https://static.readmanga.live/uploads/pics/01/41/131_p.jpg"
+
+func main() {
+  asset, _ := Asset("logo.png")
+  background, _ := imaging.Decode(bytes.NewReader(asset))
+
+  imageResp, _ := http.Get(mangaUrl)
+  defer imageResp.Body.Close()
+
+  image, _ := imaging.Decode(imageResp.Body)
+  image_h := image.Bounds().Max.Y
+
+  if image_h < minHeight {
+    image = imaging.Resize(image, 0, minHeight, imaging.Lanczos)
+    image_h = image.Bounds().Max.Y
+  }
+
+  output := imaging.Resize(background, 0, image_h, imaging.Lanczos)
+  output = imaging.PasteCenter(output, image)
+  imaging.Save(output, "test.png")
+}