How to get the value corresponding to solidity "tx.origin" in substrate ink?

Question

• I'm implementing a contract that calls contract B from contract A.
• Now alice called contract B through contract A. I would like to know that it was alice who called this contract B. Can I get it?

let caller = self.env().caller();

• If you get caller in contract B like above, its value will be the contract address of contract A.

tx.origin

• I would like to get a value similar to solidity's "tx.origin".Is it possible?

Answer 1

This function does not exist in ink!. Reason is that is considered unsafe and its addition a mistake in Solidity.