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package app | |
import ( | |
"bytes" | |
"image/gif" | |
"image/jpeg" | |
"image/png" | |
"net/http" | |
"path" | |
"strings" | |
"github.com/sugyan/shogi/format/csa" | |
"github.com/sugyan/shogi/util/image" | |
"google.golang.org/appengine" | |
"google.golang.org/appengine/log" | |
) | |
func init() { | |
http.Handle("/", http.StripPrefix("/", http.HandlerFunc(handler))) | |
} | |
func handler(w http.ResponseWriter, r *http.Request) { | |
if r.URL.Path == "favicon.ico" { | |
http.NotFound(w, r) | |
return | |
} | |
ctx := appengine.NewContext(r) | |
b := bytes.NewBuffer([]byte{}) | |
for _, l := range strings.Split(r.URL.Path, "/") { | |
if strings.HasPrefix(l, "P") { | |
b.WriteString(l + "\n") | |
} | |
} | |
state, err := csa.Parse(b) | |
if err != nil { | |
log.Errorf(ctx, "failed to parse: %s", err.Error()) | |
http.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest) | |
return | |
} | |
var options *image.StyleOptions | |
if strings.HasPrefix(path.Base(r.URL.Path), "simple") { | |
options = &image.StyleOptions{ | |
Board: image.BoardStripe, | |
Piece: image.PieceDirty, | |
} | |
} | |
if strings.HasPrefix(path.Base(r.URL.Path), "random") { | |
options = &image.StyleOptions{ | |
Board: image.BoardRandom, | |
Grid: image.GridRandom, | |
Piece: image.PieceRandom, | |
} | |
} | |
img, err := image.Generate(state, options) | |
if err != nil { | |
log.Errorf(ctx, "failed to generate: %s", err.Error()) | |
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError) | |
return | |
} | |
switch path.Ext(r.URL.Path) { | |
case ".jpg": | |
fallthrough | |
case ".jpeg": | |
w.Header().Set("Content-Type", "image/jpeg") | |
if err := jpeg.Encode(w, img, nil); err != nil { | |
log.Errorf(ctx, "failed to encode: %s", err.Error()) | |
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError) | |
} | |
case ".gif": | |
w.Header().Set("Content-Type", "image/gif") | |
if err := gif.Encode(w, img, nil); err != nil { | |
log.Errorf(ctx, "failed to encode: %s", err.Error()) | |
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError) | |
} | |
default: | |
w.Header().Set("Content-Type", "image/png") | |
if err := png.Encode(w, img); err != nil { | |
log.Errorf(ctx, "failed to encode: %s", err.Error()) | |
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError) | |
} | |
} | |
} |
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runtime: go | |
api_version: go1 | |
handlers: | |
- url: /.* | |
script: _go_app | |
automatic_scaling: | |
max_idle_instances: 1 |
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