DOCUMENTATION.md

WidevineFetch Module Documentation

The following methods can be used to alter the data processing procedure of the program

• Modify input
  • Modify the License URL, Headers and Body before they read the program
• Get Challenge
  • A custom method for retrieving the Challenge from the original request data
• Extract PSSH
  • A custom method for extracting the PSSH from the challenge or requesting a different manifest and getting the PSSH from there.
• Set Challenge
  • A custom method for replacing the Challenge in the original request data
• Get License
  • A custom method for retrieving the Challenge from the response

The following code snippets can be copied over and modified to create a custom module.
Name it after your service and make sure that it ends it .py. Then place that file in the modules directory. You can open an issue or a pull request if you'd like me to upload it to the GitHub repo.

Logging

Define empty variables that will be added when the module is loaded.
Call the following functions to print text to the logging box or open an error dialog.

INFO = None
# call inside a function
INFO("<Message to print>")

WARN = None
# call inside a function
WARN("<Message to print>")

ERROR = None
# call inside a function
ERROR("<Error to show>")

Regex

Modules are activated by a RegEx that must fully match the License URL.
Tools like regex101 can help you with creating your RegEx
Multiple values can be specified

REGEX = r"<License URL RegEx>"
# or
REGEX = [
    r"<License URL RegEx>",
    r"<License URL RegEx>"
]

Force Impersonation

IMPERSONATE = True

Useful when impersonation is required for a custom module

Modify input

def modify(
        url: str,
        headers: dict,
        body: str
) -> tuple[str, dict, str]:
    # <code>
    return url, headers, body

# Function reference
MODIFY = modify

Note

The body is received as a string. The modified body must be returned as a string

Get Challenge

def get_challenge(
        body: str
) -> str | bytes:
    # <code>
    return "C..."

# Function reference
GET_CHALLENGE = get_challenge

Note

The body is received as a string. The Challenge can be returned as bytes or base64 (str)

Extract PSSH

def extract_pssh(
        challenge: bytes,
        url: str,
        headers: dict
) -> str | None:
    # <code>
    return "AAAA..."

# Function reference
EXTRACT_PSSH = extract_pssh

Note

Inform the user about the new manifest - if it exists - by sending a log message

Set Challenge

def set_challenge(
        body: str,
        challenge: bytes
) -> str:
    # <code>
    return '{"challenge": "C..."}'

# Function reference
SET_CHALLENGE = set_challenge

Note

The body is received as a string. The modified body must be returned as a string

Get License

def get_license(
        body: str
) -> str | bytes:
    # <code>
    return "C..."

# Function reference
GET_LICENSE = get_license

Note

The body is received as a string and the challenge can be returned as bytes or base64 (str)