Converts all use of boost::filesystem to std::filesystem.
For macos and potentially other exotic systems where std::filesystem
isn't available, we use ghc::filesystem instead (which is a drop-in
replacement for std::filesystem, unlike boost::filesystem).
This also greatly changes how we handle filenames internally by holding
them in filesystem::path objects as soon as possible (using
fs::u8path()), rather than strings, which avoids a ton of issues around
unicode filenames. As a result this lets us drop the boost::locale
dependency on Windows along with a bunch of messy Windows ifdef code,
and avoids the need for doing gross boost locale codecvt calls.
In short: epee's http client is garbage, standard violating, and
unreliable.
This completely removes the epee http client support and replaces it
with cpr, a curl-based C++ wrapper. rpc/http_client.h wraps cpr for RPC
requests specifically, but it is also usable directly.
This replacement has a number of advantages:
- requests are considerably more reliable. The epee http client code
assumes that a connection will be kept alive forever, and returns a
failure if a connection is ever closed. This results in some very
annoying things: for example, preparing a transaction and then waiting
a long tim before confirming it will usually result in an error
communication with the daemon. This is just terribly behaviour: the
right thing to do on a connection failure is to resubmit the request.
- epee's http client is broken in lots of other ways: for example, it
tries throwing SSL at the port to see if it is HTTPS, but this is
protocol violating and just breaks (with a several second timeout) on
anything that *isn't* epee http server (for example, when lokid is
behind a proxying server).
- even when it isn't doing the above, the client breaks in other ways:
for example, there is a comment (replaced in this PR) in the Trezor PR
code that forces a connection close after every request because epee's
http client doesn't do proper keep-alive request handling.
- it seems noticeably faster to me in practical use in this PR; both
simple requests (for example, when running `lokid status`) and
wallet<->daemon connections are faster, probably because of crappy
code in epee. (I think this is also related to the throw-ssl-at-it
junk above: the epee client always generates an ssl certificate during
static initialization because it might need one at some point).
- significantly reduces the amount of code we have to maintain.
- removes all the epee ssl option code: curl can handle all of that just
fine.
- removes the epee socks proxy code; curl can handle that just fine.
(And can do more: it also supports using HTTP/HTTPS proxies).
- When a cli wallet connection fails we know show why it failed (which
now is an error message from curl), which could have all sorts of
reasons like hostname resolution failure, bad ssl certificate, etc.
Previously you just got a useless generic error that tells you
nothing.
Other related changes in this PR:
- Drops the check-for-update and download-update code. To the best of
my knowledge these have never been supported in loki-core and so it
didn't seem worth the trouble to convert them to use cpr for the
requests.
- Cleaned up node_rpc_proxy return values: there was an inconsistent mix
of ways to return errors and how the returned strings were handled.
Instead this cleans it up to return a pair<bool, val>, which (with
C++17) can be transparently captured as:
auto [success, val] = node.whatever(req);
This drops the failure message string, but it was almost always set to
something fairly useless (if we want to resurrect it we could easily
change the first element to be a custom type with a bool operator for
success, and a `.error` attribute containing some error string, but
for the most part the current code wasn't doing much useful with the
failure string).
- changed local detection (for automatic trusted daemon determination)
to just look for localhost, and to not try to resolve anything.
Trusting non-public IPs does not work well (e.g. with lokinet where
all .loki addresses resolve to a local IP).
- ssl fingerprint option is removed; this isn't supported by curl
(because it is essentially just duplicating what a custom cainfo
bundle does)
- --daemon-ssl-allow-chained is removed; it wasn't a useful option (if
you don't want chaining, don't specify a cainfo chain).
- --daemon-address is now a URL instead of just host:port. (If you omit
the protocol, http:// is prepended).
- --daemon-host and --daemon-port are now deprecated and produce a
warning (in simplewallet) if used; the replacement is to use
--daemon-address.
- --daemon-ssl is deprecated; specify --daemon-address=https://whatever
instead.
- the above three are now hidden from --help
- reordered the wallet connection options to make more logical sense.
There are several places in loki now that legitimate use caught
exceptions, and these are polluting the logs (even at log-level=0) with
unnecessary stack traces which aren't actually errors to worry about.
bcf3f6af fuzz_tests: catch unhandled exceptions (moneromooo-monero)
3ebd05d4 miner: restore stream flags after changing them (moneromooo-monero)
a093092e levin_protocol_handler_async: do not propagate exception through dtor (moneromooo-monero)
1eebb82b net_helper: do not propagate exceptions through dtor (moneromooo-monero)
fb6a3630 miner: do not propagate exceptions through dtor (moneromooo-monero)
2e2139ff epee: do not propagate exception through dtor (moneromooo-monero)
0749a8bd db_lmdb: do not propagate exceptions in dtor (moneromooo-monero)
1b0afeeb wallet_rpc_server: exit cleanly on unhandled exceptions (moneromooo-monero)
418a9936 unit_tests: catch unhandled exceptions (moneromooo-monero)
ea7f9543 threadpool: do not propagate exceptions through the dtor (moneromooo-monero)
6e855422 gen_multisig: nice exit on unhandled exception (moneromooo-monero)
53df2deb db_lmdb: catch error in mdb_stat calls during migration (moneromooo-monero)
e67016dd blockchain_blackball: catch failure to commit db transaction (moneromooo-monero)
661439f4 mlog: don't remove old logs if we failed to rename the current file (moneromooo-monero)
5fdcda50 easylogging++: test for NULL before dereference (moneromooo-monero)
7ece1550 performance_test: fix bad last argument calling add_arg (moneromooo-monero)
a085da32 unit_tests: add check for page size > 0 before dividing (moneromooo-monero)
d8b1ec8b unit_tests: use std::shared_ptr to shut coverity up about leaks (moneromooo-monero)
02563bf4 simplewallet: top level exception catcher to print nicer messages (moneromooo-monero)
c57a65b2 blockchain_blackball: fix shift range for 32 bit archs (moneromooo-monero)
792ba4f0 Log categories can now be added to and removed from (moneromooo-monero)
48f92eb6 easylogging++: add categories getter (moneromooo-monero)
f35afe62 epee: factor log level/categories setting (moneromooo-monero)
Because some people just won't even try to read what is written
and freak out because the word FATAL is in here, despite the
context making it clear it's not an error.
Jason Rhinelander
Howard Chu
moneromooo-monero
Doyle
iDunk5400
Riccardo Spagni
Doyle T
luigi1111
stoffu
jcktm
selsta