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mtfosbot
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image router fin

This commit is contained in:
Jay 2018-09-19 17:26:36 +08:00
parent 2dc337762d
commit e86171151a
3 changed files with 204 additions and 22 deletions
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17
main.go
View File

@ -2,10 +2,15 @@ package main
import (
"encoding/gob"
"errors"
"log"
"os"
"path"
"strconv"
"strings"
"git.trj.tw/golang/mtfosbot/module/utils"
"git.trj.tw/golang/mtfosbot/model"
"git.trj.tw/golang/mtfosbot/module/background"
"git.trj.tw/golang/mtfosbot/module/config"
@ -38,6 +43,18 @@ func main() {
go twitchirc.InitIRC()
// create thumbnail directory
conf := config.GetConf()
if !utils.CheckExists(conf.ImageRoot, true) {
log.Fatal(errors.New("image root not exists"))
}
if !utils.CheckExists(path.Join(conf.ImageRoot, "thumbnail"), true) {
err = os.MkdirAll(path.Join(conf.ImageRoot, "thumbnail"), 0775)
if err != nil {
log.Fatal(err)
}
}
server.Run(strings.Join([]string{":", strconv.Itoa(config.GetConf().Port)}, ""))
}

205
router/rimg/rimg.go
View File

@ -7,7 +7,7 @@ import (
"image/jpeg"
_ "image/jpeg"
_ "image/png"
"io/ioutil"
"io"
"os"
"path"
"strconv"
@ -19,8 +19,23 @@ import (
"git.trj.tw/golang/mtfosbot/module/utils"
)
func resizeImage(fio io.Reader, size int, wgth bool) (img image.Image, err error) {
img, _, err = image.Decode(fio)
w := 0
h := 0
if wgth {
w = size
} else {
h = size
}
img = resize.Resize(uint(w), uint(h), img, resize.Lanczos3)
return
}
// GetOriginImage -
func GetOriginImage(c *context.Context) {
// max 1024
fname := c.Param("imgname")
conf := config.GetConf()
imgP := utils.ParsePath(conf.ImageRoot)
@ -44,28 +59,25 @@ func GetOriginImage(c *context.Context) {
}
defer fileBuf.Close()
imgf, _, err := image.DecodeConfig(fileBuf)
imgf, format, err := image.DecodeConfig(fileBuf)
if err != nil {
c.ServerError(nil)
return
}
// reset pointer to 0
_, err = fileBuf.Seek(0, 0)
if err != nil {
c.ServerError(nil)
return
}
if imgf.Height > 1024 || imgf.Width > 1024 {
img, _, err := image.Decode(fileBuf)
if err != nil {
c.ServerError(nil)
return
}
w := 0
h := 0
if imgf.Width > imgf.Height {
w = 1024
} else {
h = 1024
}
img, err := resizeImage(fileBuf, 1024, imgf.Width > imgf.Height)
buf := new(bytes.Buffer)
m := resize.Resize(uint(w), uint(h), img, resize.Bilinear)
err = jpeg.Encode(buf, m, nil)
err = jpeg.Encode(buf, img, nil)
if err != nil {
c.ServerError(nil)
return
@ -79,12 +91,167 @@ func GetOriginImage(c *context.Context) {
return
}
buf, err := ioutil.ReadAll(fileBuf)
// check type
if format != "jpeg" {
img, _, err := image.Decode(fileBuf)
if err != nil {
c.ServerError(nil)
return
}
buf := new(bytes.Buffer)
err = jpeg.Encode(buf, img, nil)
if err != nil {
c.ServerError(nil)
return
}
c.Writer.Header().Set("Content-Type", "image/jpeg")
io.Copy(c.Writer, buf)
return
}
c.Writer.Header().Set("Content-Type", "image/jpeg")
c.Writer.Header().Set("Content-Length", strconv.Itoa(len(buf)))
_, err = c.Writer.Write(buf)
io.Copy(c.Writer, fileBuf)
}
// GetThumbnailImage -
func GetThumbnailImage(c *context.Context) {
// max 240
fname := c.Param("imgname")
conf := config.GetConf()
imgP := utils.ParsePath(conf.ImageRoot)
exists := utils.CheckExists(imgP, true)
if !exists {
c.NotFound("image path not found")
return
}
thumbP := path.Join(imgP, "thumbnail", fname)
genNew := false
if !utils.CheckExists(thumbP, false) {
genNew = true
thumbP = path.Join(imgP, fname)
exists = utils.CheckExists(thumbP, false)
if !exists {
c.NotFound("image file not found")
return
}
}
filebuf, err := os.Open(thumbP)
if err != nil {
c.ServerError(nil)
return
}
defer filebuf.Close()
imgconf, format, err := image.DecodeConfig(filebuf)
if err != nil {
c.ServerError(nil)
return
}
// reset file reader ptr
_, err = filebuf.Seek(0, 0)
if err != nil {
c.ServerError(nil)
return
}
if imgconf.Height > 240 || imgconf.Width > 240 {
img, err := resizeImage(filebuf, 240, imgconf.Width > imgconf.Height)
if err != nil {
c.ServerError(nil)
return
}
buf := new(bytes.Buffer)
err = jpeg.Encode(buf, img, nil)
if err != nil {
c.ServerError(nil)
return
}
breader := bytes.NewReader(buf.Bytes())
if genNew {
savep := path.Join(conf.ImageRoot, "thumbnail", fname)
err := saveNewThumbnail(breader, savep)
if err != nil {
c.ServerError(nil)
return
}
_, err = breader.Seek(0, 0)
if err != nil {
c.ServerError(nil)
return
}
}
c.Writer.Header().Set("Content-Type", "image/jpeg")
io.Copy(c.Writer, breader)
return
}
if format != "jpeg" {
img, _, err := image.Decode(filebuf)
if err != nil {
c.ServerError(nil)
return
}
buf := new(bytes.Buffer)
err = jpeg.Encode(buf, img, nil)
if err != nil {
c.ServerError(nil)
return
}
breader := bytes.NewReader(buf.Bytes())
savep := path.Join(conf.ImageRoot, "thumbnail", fname)
err = saveNewThumbnail(breader, savep)
if err != nil {
c.ServerError(nil)
return
}
_, err = breader.Seek(0, 0)
if err != nil {
c.ServerError(nil)
return
}
c.Writer.Header().Set("Content-Type", "image/jpeg")
io.Copy(c.Writer, breader)
return
}
if genNew {
savep := path.Join(conf.ImageRoot, "thumbnail", fname)
err := saveNewThumbnail(filebuf, savep)
if err != nil {
c.ServerError(nil)
return
}
_, err = filebuf.Seek(0, 0)
if err != nil {
c.ServerError(nil)
return
}
}
c.Writer.Header().Set("Content-Type", "image/jpeg")
io.Copy(c.Writer, filebuf)
}
func saveNewThumbnail(fio io.Reader, newp string) (err error) {
out, err := os.Create(newp)
if err != nil {
return err
}
_, err = io.Copy(out, fio)
if err != nil {
return err
}
return
}

4
router/routes/routes.go
View File

@ -51,10 +51,8 @@ func SetRoutes(r *gin.Engine) {
imageProcGroup := r.Group("/image")
{
imageProcGroup.GET("/origin", func(c *gin.Context) {
c.String(200, "test msg")
})
imageProcGroup.GET("/origin/:imgname", context.PatchCtx(rimg.GetOriginImage))
imageProcGroup.GET("/thumbnail/:imgname", context.PatchCtx(rimg.GetThumbnailImage))
}
apiGroup := r.Group("/api")