Files
planetposen-images/server/handler/images.go

128 lines
3.5 KiB
Go

package handler
import (
"encoding/json"
"github.com/kevinmidboe/planetposen-images/util"
"strings"
// "github.com/sirupsen/logrus"
// "encoding/json"
"fmt"
"github.com/kevinmidboe/planetposen-images/clients/gcs"
"github.com/kevinmidboe/planetposen-images/image"
// "github.com/dbmedialab/dearheart/event"
// "github.com/dbmedialab/dearheart/server/internal/serverutils"
"github.com/gorilla/mux"
"io"
"net/http"
"path/filepath"
// "strconv"
// "strings"
)
// UploadImages takes a request with file form and uploads the content to GCS
func UploadImages(hostname string, gcsClient gcs.Client) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
// Get initial protocol data
ctx := r.Context()
file, fileHeader, err := r.FormFile("file")
if err != nil {
handleError(w, err, "unable to handle file", http.StatusBadRequest, true)
return
}
var maxSize int64 = 10 * 1024 * 1024 * 1024
if fileHeader.Size > maxSize {
handleError(w, nil, "File sized %d, larger than the max of %d\", fileHeader.Size, maxSize", http.StatusBadRequest, true)
return
}
filename := strings.ReplaceAll(fileHeader.Filename, "/", "-")
defer file.Close()
logger.InfoWithFilename("uploading image with filename", filename)
writer, path, err := gcsClient.FileWriter(ctx, filename)
if err != nil {
handleGoogleApiError(w, err, "File unable to write file to gcs", http.StatusServiceUnavailable, true)
return
}
defer writer.Close()
_, err = io.Copy(writer, file)
if err != nil {
handleGoogleApiError(w, err, "Error copying file to GCS", http.StatusInternalServerError, true)
}
finalURL := util.ImageURL(hostname, string(path))
responseStruct := image.Image{
Path: string(path),
URL: finalURL,
}
logger.UploadSuccessMessage(string(path), finalURL)
responseData, _ := json.Marshal(responseStruct)
_, _ = w.Write(responseData)
}
}
// FetchImage gets a single image from GCS
func FetchImage(gcsClient gcs.Client) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
path := gcs.EncodedPath(mux.Vars(r)["path"])
logger.InfoWithPath("Getting image", string(path))
if path == "" {
handleError(w, nil, "missing image path ", http.StatusBadRequest, true)
return
}
reader, err := gcsClient.FileReader(ctx, path)
if err != nil {
handleGoogleApiError(w, err, "error from gcs file reader ", http.StatusBadRequest, true)
return
}
defer reader.Close()
// we can ignore the error, because we've already verified the path decodes
filename, _ := path.Decode()
extension := filepath.Ext(string(filename))
if extension != "" {
w.Header().Set("Content-Type", fmt.Sprintf("image/%s", extension[1:]))
}
logger.InfoWithFilename("found and returning file from bucket", string(filename))
_, err = io.Copy(w, reader)
if err != nil {
handleError(w, err, "Couldn't copy the file from GCS ", http.StatusInternalServerError, true)
}
}
}
func ListImages(gcsClient gcs.Client) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
logger.Info("Listing images")
ctx := r.Context()
files, err := gcsClient.FileLister(ctx)
if err != nil {
handleGoogleApiError(w, err, "error from gcs file lister ", http.StatusBadRequest, true)
return
}
w.WriteHeader(http.StatusOK)
responseJSON, _ := json.Marshal(struct {
Message string `json:"message"`
Success bool `json:"success"`
Files []string `json:"files"`
}{
Message: "Google storage bucket contents",
Success: true,
Files: files,
})
w.Write(responseJSON)
}
}