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how to get drmProxySecret value?

if you visit a page such as this:

https://nbc.com/saturday-night-live/video/january-20-jacob-elordi/9000283424

you should see a request like this:

https://www.nbc.com/generetic/generated/generetic.971bc5df5bddfb45624e.js

in the response body, you should see something like this:

{
  "coreVideo": {
    "drmProxyUrl": "https://drmproxy.digitalsvc.apps.nbcuni.com/drm-proxy/license",
    "drmProxySecret": "Whn8QFuLFM7Heiz6fYCYga7cYPM8ARe6"
  }
}

how to get hash value?

POST https://drmproxy.digitalsvc.apps.nbcuni.com/drm-proxy/license/widevine?time=1699126072315&hash=0df6ff2b81e42c3ec10d1c4946cebce7ddd631a4130841fd74ba5fa0c3d7c02a&device=web HTTP/2.0
content-type: application/octet-stream

in the code we have this:

return ""
   .concat(const174_.drmProxyUrl, "/")
   .concat(const181_, "?time=")
   .concat(const182_, "&hash=")
   .concat(const184_, "&device=web")
   .concat(param178_2 ? "&keyId=".concat(param178_2) : "");

simplify:

var91_ = param74_3(1358),
var92_ = param74_3.n(var91_),
let let179_ = arguments.length > 2 && void 0 !== arguments[2] ? arguments[2] : 0;
const182_ = new Date().getTime() + let179_,
const const181_ = param178_.toLowerCase(),
const183_ = const182_ + const181_,
const184_ = var92_()(const183_, const174_.drmProxySecret);
"&hash=" + const184_

we should print these:

console.log('DRM', var92_().toString());
console.log('DRM', const183_);
console.log('DRM', const174_.drmProxySecret);

script:

from mitmproxy import ctx, http

def response(f: http.HTTPFlow) -> None:
   if f.request.path.startswith('/generetic/generated/chunks/12.ff734ba67f44a707e609.js'):
      f.response.text = open('hello.js', 'r').read()

Documentation

Index

• type Metadata
  • func (m Metadata) Episode() (string, bool)
  • func (m *Metadata) New(guid int) error
  • func (m Metadata) OnDemand() (*OnDemand, error)
  • func (Metadata) Owner() (string, bool)
  • func (m Metadata) Season() (string, bool)
  • func (m Metadata) Show() (string, bool)
  • func (m Metadata) Title() (string, bool)
  • func (m Metadata) Year() (string, bool)
• type OnDemand
• type Video
  • func Core() Video
  • func (Video) RequestBody(b []byte) ([]byte, error)
  • func (Video) RequestHeader() (http.Header, error)
  • func (v Video) RequestUrl() (string, bool)
  • func (Video) ResponseBody(b []byte) ([]byte, error)

Types

type Metadata

type Metadata struct {
	AirDate          string
	EpisodeNumber    string
	MpxAccountId     int64 `json:",string"`
	MpxGuid          int64 `json:",string"`
	ProgrammingType  string
	SeasonNumber     string
	SecondaryTitle   string
	SeriesShortTitle string
}

func (Metadata) Episode

func (m Metadata) Episode() (string, bool)

func (*Metadata) New

func (m *Metadata) New(guid int) error

func (Metadata) OnDemand

func (m Metadata) OnDemand() (*OnDemand, error)

func (Metadata) Owner

func (Metadata) Owner() (string, bool)

func (Metadata) Season

func (m Metadata) Season() (string, bool)

func (Metadata) Show

func (m Metadata) Show() (string, bool)

func (Metadata) Title

func (m Metadata) Title() (string, bool)

func (Metadata) Year

func (m Metadata) Year() (string, bool)

type OnDemand

type OnDemand struct {
	PlaybackUrl string
}

type Video

type Video struct {
	DrmProxyUrl    string
	DrmProxySecret string
}

func Core

func Core() Video

func (Video) RequestBody

func (Video) RequestBody(b []byte) ([]byte, error)

func (Video) RequestHeader

func (Video) RequestHeader() (http.Header, error)

func (Video) RequestUrl

func (v Video) RequestUrl() (string, bool)

func (Video) ResponseBody

func (Video) ResponseBody(b []byte) ([]byte, error)