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Support saving file

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This commit is contained in:
Lukas Martinelli
2016-12-03 16:51:47 +01:00
parent 11375008fa
commit 0d77518a02
2 changed files with 37 additions and 8 deletions
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39
api.go
View File

@@ -2,48 +2,77 @@ package main
import (
"encoding/json"
"fmt"
"io"
"io/ioutil"
"log"
"net/http"
"os"
"path/filepath"
"github.com/gorilla/mux"
)
func StyleFileAccessor(filename string) styleFileAccessor {
file, err := os.Open(filename)
file, err := os.OpenFile(filename, os.O_RDWR, 0666)
if err != nil {
log.Fatalf("Can not access style file: %s", err.Error())
}
return styleFileAccessor{file}
return styleFileAccessor{file, styleId(file)}
}
func styleId(file *os.File) string {
raw, err := ioutil.ReadAll(file)
if err != nil {
log.Panicln(err)
}
var spec styleSpec
err = json.Unmarshal(raw, &spec)
if err != nil {
log.Panicln(err)
}
if spec.Id == "" {
fmt.Println("No id in style")
}
return spec.Id
}
type styleSpec struct {
Id string `json:"id"`
}
// Allows access to a single style file
type styleFileAccessor struct {
file *os.File
id string
}
func (fa styleFileAccessor) ListFiles(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
encoder := json.NewEncoder(w)
encoder.Encode([]string{filepath.Base(fa.file.Name())})
encoder.Encode([]string{fa.id})
}
func (fa styleFileAccessor) ReadFile(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
_ = vars["filename"]
_ = vars["styleId"]
//TODO: Choose right file
// right now we just return the single file we know of
w.Header().Set("Content-Type", "application/json")
fa.file.Seek(0, 0)
if _, err := io.Copy(w, fa.file); err != nil {
log.Fatalf("Can not copy from file to request: %s", err.Error())
}
}
func (fa styleFileAccessor) SaveFile(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
_ = vars["styleId"]
//TODO: Save to right file
w.Header().Set("Content-Type", "application/json")
if _, err := io.Copy(fa.file, r.Body); err != nil {

6
maputnik.go
View File

@@ -39,9 +39,9 @@ func main() {
// Allow access to reading and writing file on the local system
path, _ := filepath.Abs(filename)
accessor := StyleFileAccessor(path)
router.Path("/files").Methods("GET").HandlerFunc(accessor.ListFiles)
router.Path("/files/{filename}").Methods("GET").HandlerFunc(accessor.ReadFile)
router.Path("/files/{filename}").Methods("PUT").HandlerFunc(accessor.SaveFile)
router.Path("/styles").Methods("GET").HandlerFunc(accessor.ListFiles)
router.Path("/styles/{styleId}").Methods("GET").HandlerFunc(accessor.ReadFile)
router.Path("/styles/{styleId}").Methods("PUT").HandlerFunc(accessor.SaveFile)
// Register websocket to notify we clients about file changes
if c.Bool("watch") {