Netflix MSL Reader
^{Intercept MSL requests and responses from Netflix}

Features

• 👁️ Transparent MSL requests and responses interception
• 🔓 Decrypt content and return parsed data
• 📜 Save logs data for let you analyse data later

Prerequisites:

• git
• mitmproxy
• Python (up to 3.12)
• Poetry
• Any proxy browser extension (like FoxyProxy)
• Valid premium Netflix account

Important

To intercept SSL requests and responses with mitmproxy, you need to install mitmproxy certificate.

Installation

$ git clone https://github.com/retouching/nf-msl-reader.git
$ cd nf-msl-reader
$ poetry install

Usage

Important

If you are logged already, you have to delete the netflix MSL session to force it to recreate the session. To do it:

• Go on Netflix
• Open devtools (F12)
• Go in Application > IndexedDB > netflix.player and click "Delete database"

1. Start mitmproxy with script enabled:

$ mitmdump -s run.py -q

2. Switch to mitmproxy proxy on proxy browser extension

3. Press CTRL + F5 on Netflix and start navigating. Clear cache is important beacause the script update cadmium playercore file.

4. You can get intercepted requests and responses in logs folder.

If all is done, you have this on your terminal:

[!] Exchange keys not found! Waiting for keys exchange ...
[+] Initialized logs
[+] Update cadmium playercore file with our rsa proxy key
[+] Receive Netflix MSL request
[+] Receive key exchange request for Netflix
[+] Change public key used for exchange to read server keys later
[+] Send updated public key exchange to Netflix
[+] Receive Netflix MSL response
[+] Receive key exchange response from Netflix
[+] Save MSL keys
[+] Saved MSL request "xxx"
[+] Saving keys
[+] Receive Netflix MSL request
[+] Receive Netflix MSL response
[+] Saved MSL request "xxx"

Examples

Log file:

{
    "url": string,
    "requested_at": number,
    "raw": {
        "request": any[],
        "response": any[]
    },
    "parsed": {
        "request": {
            "header": any,
            "data": any
        },
        "response": {
            "header": any,
            "data": any
        }
    }
}

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README style taken from devine