/
speedtest.go
98 lines (86 loc) · 3.28 KB
/
speedtest.go
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package speedtest
import (
"fmt"
"net/http"
"os"
"io"
"html/template"
"appengine"
"appengine/blobstore"
"appengine/urlfetch"
)
func init() {
http.HandleFunc("/local/0.png", local)
http.HandleFunc("/blob/0.png", blob)
http.HandleFunc("/remote/0.png", remote)
http.HandleFunc("/upload", upload)
http.HandleFunc("/", handler)
}
// Upload to blobstore
func serveError(c appengine.Context, w http.ResponseWriter, err error) {
w.WriteHeader(http.StatusInternalServerError)
w.Header().Set("Content-Type", "text/plain")
io.WriteString(w, "Internal Server Error")
c.Errorf("%v", err)
}
var rootTemplate = template.Must(template.New("root").Parse(rootTemplateHTML))
const rootTemplateHTML = `
<html><body>
<form action="{{.}}" method="POST" enctype="multipart/form-data">
Upload File: <input type="file" name="file"><br>
<input type="submit" name="submit" value="Submit">
</form></body></html>
`
func upload(w http.ResponseWriter, r *http.Request) {
c := appengine.NewContext(r)
uploadURL, err := blobstore.UploadURL(c, "/upload", nil)
if err != nil {
serveError(c, w, err)
return
}
w.Header().Set("Content-Type", "text/html")
err = rootTemplate.Execute(w, uploadURL)
if err != nil {
c.Errorf("%v", err)
}
}
// Speed test
func local(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "image/png")
f, err := os.Open("static/0.png")
if err != nil { panic(err) }
buf := make([]byte, 1024*1024)
n, err := f.Read(buf)
if err != nil { panic(err) }
w.Write(buf[:n])
f.Close()
}
func blob(w http.ResponseWriter, r *http.Request) {
c := appengine.NewContext(r)
w.Header().Set("Content-Type", "image/png")
f := blobstore.NewReader(c, appengine.BlobKey("AMIfv97HhOdzO1aYQEe0QBrzbWSjSgWr2-JUxFJh_KnwxAhEdAqqK76TeE7vm5eDJW0ZoMwFVwur0Ub3t1kD_KzP3yJi4LIG6A-dCdJrJYafoJgH7SITCBum4MF9CY-C7na5fBulmKwQXd2mEYMyfk_RDgeQN1SZug"))
buf := make([]byte, 1024*1024)
n, err := f.Read(buf)
if err != nil { panic(err) }
w.Write(buf[:n])
}
func remote(w http.ResponseWriter, r *http.Request) {
c := appengine.NewContext(r)
client := urlfetch.Client(c)
resp, err := client.Get("http://commondatastorage.googleapis.com/gombtiles/small/0/0/0.png")
if err != nil { panic(err) }
w.Header().Set("Content-Type", "image/png")
buf := make([]byte, 1024*1024)
n, err := resp.Body.Read(buf)
if err != nil { panic(err) }
w.Write(buf[:n])
}
func handler(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/html")
fmt.Fprint(w, "<h2>Speed test of a tile delivery</h2>")
fmt.Fprint(w, "<a href='/static/0.png'>Static (file in the code repository)</a><br/>")
fmt.Fprint(w, "<a href='/blob/0.png'>Blob (file stored in the blobstore)</a><br/>")
// fmt.Fprint(w, "<a href='/local/0.png'>Local open/read/write by a golang function (file part of the code repository)</a><p/>")
fmt.Fprint(w, "<a href='http://commondatastorage.googleapis.com/gombtiles/small/0/0/0.png'>Direct Cloud Storage (file stored in the Cloud Storage)</a><br/>")
fmt.Fprint(w, "<a href='/remote/0.png'>Remote urlfetch (file stored in the Cloud Storage)</a><br/>")
}