mirror of https://github.com/jlelse/GoBlog
198 lines
5.4 KiB
Go
198 lines
5.4 KiB
Go
package main
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import (
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"bytes"
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"net/http"
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"os"
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"git.jlel.se/jlelse/GoBlog/pkgs/contenttype"
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)
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const defaultCompressionWidth = 2000
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const defaultCompressionHeight = 3000
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func (a *goBlog) tinify(url string, config *configMicropubMedia) (location string, err error) {
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// Check config
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if config == nil || config.TinifyKey == "" {
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return "", errors.New("service Tinify not configured")
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}
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// Check url
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fileExtension, allowed := compressionIsSupported(url, "jpg", "jpeg", "png")
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if !allowed {
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return "", nil
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}
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// Compress
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j, _ := json.Marshal(map[string]interface{}{
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"source": map[string]interface{}{
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"url": url,
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},
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})
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req, err := http.NewRequest(http.MethodPost, "https://api.tinify.com/shrink", bytes.NewReader(j))
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if err != nil {
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return "", err
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}
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req.SetBasicAuth("api", config.TinifyKey)
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req.Header.Set(contentType, contenttype.JSON)
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resp, err := appHttpClient.Do(req)
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if err != nil {
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return "", err
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}
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defer resp.Body.Close()
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_, _ = io.Copy(io.Discard, resp.Body)
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if resp.StatusCode != http.StatusCreated {
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return "", fmt.Errorf("failed to compress image, status code %d", resp.StatusCode)
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}
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compressedLocation := resp.Header.Get("Location")
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if compressedLocation == "" {
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return "", errors.New("tinify didn't return compressed location")
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}
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// Resize and download image
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j, _ = json.Marshal(map[string]interface{}{
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"resize": map[string]interface{}{
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"method": "fit",
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"width": defaultCompressionWidth,
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"height": defaultCompressionHeight,
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},
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})
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downloadReq, err := http.NewRequest(http.MethodPost, compressedLocation, bytes.NewReader(j))
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if err != nil {
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return "", err
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}
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downloadReq.SetBasicAuth("api", config.TinifyKey)
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downloadReq.Header.Set(contentType, contenttype.JSON)
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downloadResp, err := appHttpClient.Do(downloadReq)
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if err != nil {
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return "", err
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}
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defer downloadResp.Body.Close()
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if downloadResp.StatusCode != http.StatusOK {
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_, _ = io.Copy(io.Discard, downloadResp.Body)
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return "", fmt.Errorf("tinify failed to resize image, status code %d", downloadResp.StatusCode)
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}
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tmpFile, err := os.CreateTemp("", "tiny-*."+fileExtension)
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if err != nil {
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_, _ = io.Copy(io.Discard, downloadResp.Body)
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return "", err
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}
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defer func() {
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_ = tmpFile.Close()
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_ = os.Remove(tmpFile.Name())
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}()
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if _, err = io.Copy(tmpFile, downloadResp.Body); err != nil {
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_, _ = io.Copy(io.Discard, downloadResp.Body)
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return "", err
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}
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fileName, err := getSHA256(tmpFile)
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if err != nil {
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return "", err
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}
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// Upload compressed file
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location, err = a.uploadFile(fileName+"."+fileExtension, tmpFile)
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return
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}
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func (a *goBlog) shortPixel(url string, config *configMicropubMedia) (location string, err error) {
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// Check config
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if config == nil || config.ShortPixelKey == "" {
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return "", errors.New("service ShortPixel not configured")
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}
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// Check url
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fileExtension, allowed := compressionIsSupported(url, "jpg", "jpeg", "png")
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if !allowed {
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return "", nil
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}
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// Compress
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j, _ := json.Marshal(map[string]interface{}{
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"key": config.ShortPixelKey,
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"plugin_version": "GB001",
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"lossy": 1,
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"resize": 3,
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"resize_width": defaultCompressionWidth,
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"resize_height": defaultCompressionHeight,
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"cmyk2rgb": 1,
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"keep_exif": 0,
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"url": url,
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})
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req, err := http.NewRequest(http.MethodPut, "https://api.shortpixel.com/v2/reducer-sync.php", bytes.NewReader(j))
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if err != nil {
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return "", err
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}
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resp, err := appHttpClient.Do(req)
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if err != nil {
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return "", err
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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_, _ = io.Copy(io.Discard, resp.Body)
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return "", fmt.Errorf("shortpixel failed to compress image, status code %d", resp.StatusCode)
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}
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tmpFile, err := os.CreateTemp("", "tiny-*."+fileExtension)
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if err != nil {
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_, _ = io.Copy(io.Discard, resp.Body)
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return "", err
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}
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defer func() {
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_ = tmpFile.Close()
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_ = os.Remove(tmpFile.Name())
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}()
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if _, err = io.Copy(tmpFile, resp.Body); err != nil {
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_, _ = io.Copy(io.Discard, resp.Body)
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return "", err
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}
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fileName, err := getSHA256(tmpFile)
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if err != nil {
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return "", err
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}
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// Upload compressed file
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location, err = a.uploadFile(fileName+"."+fileExtension, tmpFile)
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return
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}
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func (a *goBlog) cloudflare(url string) (location string, err error) {
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// Check url
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_, allowed := compressionIsSupported(url, "jpg", "jpeg", "png")
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if !allowed {
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return "", nil
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}
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// Force jpeg
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fileExtension := "jpeg"
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// Compress
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req, err := http.NewRequest(http.MethodGet, fmt.Sprintf("https://www.cloudflare.com/cdn-cgi/image/f=jpeg,q=75,metadata=none,fit=scale-down,w=%d,h=%d/%s", defaultCompressionWidth, defaultCompressionHeight, url), nil)
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if err != nil {
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return "", err
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}
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resp, err := appHttpClient.Do(req)
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if err != nil {
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return "", err
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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_, _ = io.Copy(io.Discard, resp.Body)
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return "", fmt.Errorf("cloudflare failed to compress image, status code %d", resp.StatusCode)
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}
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tmpFile, err := os.CreateTemp("", "tiny-*."+fileExtension)
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if err != nil {
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_, _ = io.Copy(io.Discard, resp.Body)
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return "", err
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}
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defer func() {
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_ = tmpFile.Close()
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_ = os.Remove(tmpFile.Name())
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}()
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if _, err = io.Copy(tmpFile, resp.Body); err != nil {
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_, _ = io.Copy(io.Discard, resp.Body)
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return "", err
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}
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fileName, err := getSHA256(tmpFile)
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if err != nil {
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return "", err
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}
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// Upload compressed file
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location, err = a.uploadFile(fileName+"."+fileExtension, tmpFile)
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return
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}
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