// output variable as base64 string
// we have only two such variables as constants
func imagevariAsBase64(w http.ResponseWriter, r *http.Request, m map[string]interface{}) {
p := r.FormValue("p")
if p == "" {
p = "1"
}
var str_src string
if p == "1" {
str_src = conv.Img_jpeg_base64
}
if p == "2" {
str_src = conv.Img_rgba_base64
}
if p == "3" {
str_src = conv.Img_rgba_base64_old
}
// here we could check integrity...
//img,whichFormat := conv.Base64_str_to_img(str_src)
//c.Infof( "retrieved img from base64: format %v - subtype %T\n" , whichFormat, img )
rdr := strings.NewReader(str_src)
explicitMime := ""
existingMime := conv.MimeFromBase64(rdr)
if existingMime == "" {
explicitMime = "data:image/jpeg;base64,"
}
w.Header().Set("Content-Type", "text/html")
io.WriteString(w, "<p>Image embedded in HTML as Base64:</p><img width=200px src=\"")
io.WriteString(w, explicitMime)
io.WriteString(w, str_src)
io.WriteString(w, "\"> ")
}
func backend(w http.ResponseWriter, r *http.Request, m map[string]interface{}) {
w.Header().Set("Content-type", "text/html; charset=utf-8")
w.WriteHeader(http.StatusOK)
b1 := new(bytes.Buffer)
util.Wb(b1, "Diverse", "")
util.Wb(b1, "Login", "/login")
util.Wb(b1, "Schreib-Methoden", "/write-methods")
util.Wb(b1, "Letzte Email", "/email-view")
util.Wb(b1, "Blob List", "/blob/list")
util.Wb(b1, "Template Demo 1", "/tpl/demo1")
util.Wb(b1, "Template Demo 2", "/tpl/demo2")
util.Wb(b1, "Http fetch", "/fetch-url")
util.Wb(b1, "Instance Info", "/instance-info/view")
util.Wb(b1, "Gob encode decode", "/big-query/test-gob-codec")
util.Wb(b1, "JSON encode", "/json-encode")
util.Wb(b1, "JSON decode", "/json-decode")
util.Wb(b1, "Fulltext put", "/fulltext-search/put")
util.Wb(b1, "Fulltext get", "/fulltext-search/get")
util.Wb(b1, "datastore object view quoted printabe", "/dsu/show")
util.Wb(b1, "Guest Book", "")
util.Wb(b1, "Eintrag hinzufügen", "/guest-entry")
util.Wb(b1, "Einträge auflisten", "/guest-view")
util.Wb(b1, "Einträge auflisten - paged - serialized cursor", "/guest-view-cursor")
util.Wb(b1, " ", "")
util.Wb(b1, "Drawing a static chart", "/image/draw-lines-example")
util.Wb(b1, "Big Query ...", "")
util.Wb(b1, "Get real data", "/big-query/query-into-datastore")
util.Wb(b1, "Get mocked data", "/big-query/mock-data-into-datastore")
util.Wb(b1, " ... with Chart", "")
util.Wb(b1, "Process Data 1 (mock=1)", "/big-query/regroup-data-01?mock=0")
util.Wb(b1, "Process Data 2", "/big-query/regroup-data-02?f=table")
util.Wb(b1, "Show as Table", "/big-query/show-table")
util.Wb(b1, "Show as Chart", "/big-query/show-chart")
util.Wb(b1, "As HTML", "/big-query/html")
util.Wb(b1, "Request Images ", "")
util.Wb(b1, "WrapBlob from Datastore", "/image/img-from-datastore?p=chart1")
util.Wb(b1, "base64 from Datastore", "/image/base64-from-datastore?p=chart1")
util.Wb(b1, "base64 from Variable", "/image/base64-from-var?p=1")
util.Wb(b1, "base64 from File", "/image/base64-from-file?p=static/pberg1.png")
util.Wb(b1, "Namespaces + Task Queues", "")
util.Wb(b1, "Increment", "/namespaced-counters/increment")
util.Wb(b1, "Read", "/namespaced-counters/read")
util.Wb(b1, "Push to task-queue", "/namespaced-counters/queue-push")
util.Wb(b1, "URLs with/without ancestors", "")
util.Wb(b1, "Backend", "/save-url/backend")
util.Wb(b1, "Statistics", "/_ah/stats")
b1.WriteString("<br>\n")
b1.WriteString("<hr>\n")
b1.WriteString("<a target='_gae' href='https://console.developers.google.com/project/347979071940' ><b>global</b> developer console</a><br>\n")
b1.WriteString(" <a target='_gae' href='http://localhost:8000/mail' >app console local</a><br>\n")
b1.WriteString(" <a target='_gae' href='https://appengine.google.com/settings?&app_id=s~libertarian-islands' >app console online</a><br>\n")
b1.WriteString(` <a target='_gae'
href='http://go-lint.appspot.com/github.com/pbberlin/tools/dsu'
>lint package</a><br>`)
b1.WriteString("<br>\n")
b1.WriteString("<a target='_gae' href='http://localhost:8085/' >app local</a><br>\n")
b1.WriteString("<a target='_gae_r' href='http://libertarian-islands.appspot.com/' >app online</a><br>\n")
dir := m["dir"].(string)
base := m["base"].(string)
b1.WriteString("<br>\n")
b1.WriteString("Dir: --" + dir + "-- Base: --" + base + "-- <br>\n")
b1.WriteString("<br>\n")
s := fmt.Sprintf("IntegerSequenes a, b: %v %v %v<br>\n", util_err.MyIntSeq01(), util_err.MyIntSeq01(), util_err.MyIntSeq02())
b1.WriteString(s)
// b1.WriteString("<br>\n")
// b1.WriteString(fmt.Sprintf("Temp dir is %s<br>\n", os.TempDir()))
b1.WriteString("<br>\n")
b2 := new(bytes.Buffer)
b2.WriteString("data:image/png;base64,...")
b1.WriteString(fmt.Sprintf("Mime from %q is %q<br>\n", b2.String(),
conv.MimeFromBase64(b2)))
b1.WriteString("<br>\n")
io.WriteString(b1, "Date: "+util.TimeMarker()+" - ")
b1.WriteString(fmt.Sprintf("Last Month %q - 24 Months ago is %q<br>\n", util.MonthsBack(0),
util.MonthsBack(24)))
b1.WriteString("<br>\n")
x1 := " z" + util.IncrementString("--z")
x2 := " Z" + util.IncrementString("--Z")
x3 := " 9" + util.IncrementString("--9")
x4 := " Peter" + util.IncrementString("--Peter")
sEnc := "Theo - wir fahrn nach Łódź < " + util.IncrementString("Łódź") + x1 + x2 + x3 + x4
b1.WriteString(fmt.Sprint("restore string string( []byte(sEnc) ): ", string([]byte(sEnc)), "<br>"))
w.Header().Set("Content-Type", "text/html")
w.Write(b1.Bytes())
}