This adds the infrastructure `BaseRequestHandler` class that takes care
of converting bitcoin-cli arguments into a JSON-RPC request object, and
converting the reply into a JSON object that can be shown as result.
This is subsequently used to handle the `-getinfo` option, which sends
a JSON-RPC batch request to the RPC server with
`["getnetworkinfo", "getblockchaininfo", "getwalletinfo"]`,
and after reply combines the result into what looks like a `getinfo`
result.
There have been some requests for a client-side `getinfo` and this
is my PoC of how to do it. If this is considered a good idea
some of the logic could be moved up to rpcclient.cpp and
used in the GUI console as well.
Extra-Author: Andrew Chow <achow101@gmail.com>
Use POSIX rename atomicity at the `bitcoind` side to create a working
cookie atomically:
- Write `.cookie.tmp`, close file
- Rename `.cookie.tmp` to `.cookie`
This avoids clients reading invalid/partial cookies as in #11129.
Base64 contains '/', and the '/' character in credentials is problematic
for AuthServiceProxy which represents the RPC endpoint as an URI with
user and password embedded.
Closes#8399.
