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play.go
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play.go
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package googleplay
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
"net/http/httputil"
"net/url"
"os"
"strconv"
"strings"
"time"
)
var LogLevel logLevel
type logLevel int
func (l logLevel) dump(req *http.Request) error {
switch l {
case 0:
fmt.Println(req.Method, req.URL)
case 1:
buf, err := httputil.DumpRequest(req, true)
if err != nil {
return err
}
os.Stdout.Write(buf)
if !bytes.HasSuffix(buf, []byte{'\n'}) {
os.Stdout.WriteString("\n")
}
case 2:
buf, err := httputil.DumpRequestOut(req, true)
if err != nil {
return err
}
os.Stdout.Write(buf)
}
return nil
}
const (
Sleep = 16 * time.Second
agent = "Android-Finsky (sdk=99,versionCode=99999999)"
origin = "https://android.clients.google.com"
)
const androidKey =
"AAAAgMom/1a/v0lblO2Ubrt60J2gcuXSljGFQXgcyZWveWLEwo6prwgi3iJIZdodyhKZQrNWp" +
"5nKJ3srRXcUW+F1BD3baEVGcmEgqaLZUNBjm057pKRI16kB0YppeGx5qIQ5QjKzsR8ETQbKLN" +
"WgRY0QRNVz34kMJR3P/LgHax/6rmf5AAAAAwEAAQ=="
func numberFormat(val float64, metric []string) string {
var key int
for val >= 1000 {
val /= 1000
key++
}
if key >= len(metric) {
return ""
}
return strconv.FormatFloat(val, 'f', 3, 64) + metric[key]
}
// Purchase app. Only needs to be done once per Google account.
func (a Auth) Purchase(dev *Device, app string) error {
app = url.QueryEscape(app)
req, err := http.NewRequest(
"POST", origin + "/fdfe/purchase", strings.NewReader("doc=" + app),
)
if err != nil {
return err
}
req.Header = http.Header{
"Authorization": {"Bearer " + a.Auth},
"Content-Type": {"application/x-www-form-urlencoded"},
"User-Agent": {agent},
"X-DFE-Device-ID": {dev.String()},
}
LogLevel.dump(req)
res, err := new(http.Transport).RoundTrip(req)
if err != nil {
return err
}
return res.Body.Close()
}
type Device struct {
Android_ID int64
}
func NewDevice() (*Device, error) {
req, err := http.NewRequest(
"POST", origin + "/checkin",
strings.NewReader(`{"checkin":{},"version":3}`),
)
if err != nil {
return nil, err
}
LogLevel.dump(req)
res, err := new(http.Transport).RoundTrip(req)
if err != nil {
return nil, err
}
defer res.Body.Close()
dev := new(Device)
if err := json.NewDecoder(res.Body).Decode(dev); err != nil {
return nil, err
}
return dev, nil
}
// Read Device from file.
func (d *Device) Decode(r io.Reader) error {
return json.NewDecoder(r).Decode(d)
}
// Write Device to file.
func (d Device) Encode(w io.Writer) error {
enc := json.NewEncoder(w)
enc.SetIndent("", " ")
return enc.Encode(d)
}
func (d Device) String() string {
return strconv.FormatInt(d.Android_ID, 16)
}
type response struct {
code uint64
status string
}
func (r response) Error() string {
return strconv.FormatUint(r.code, 10) + " " + r.status
}