| Commit message (Collapse) | Author | Age |
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Seems that Generic is in scope w/o the import in new ghc, I assume but
have not verified that old ghc needed the import.
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As part of the MonadFail proposal[1], the fail method was removed from
the Monad type class in GHC 8.8. As such, one now needs a MonadFail
constraint for the relevant functions.
[1]: https://wiki.haskell.org/MonadFail_Proposal
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Don't fully understand the need for the MonoLocalBinds language extension,
which was not needed before but now ghc complains if it's not included,
but I've tested it and it does work.
All the rest of the changes are straightforward AMP changes and dep
updates.
Removed fgl from stack.yaml because it seems that indirect dep no longer
needs to be specified for stack to build.
Added custom-setup stanza since stack now warns without one.
This commit was sponsored by Trenton Cronholm on Patreon.
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This way it's not tied to details of the haskell binary library,
and implementations in other languages should be fairly simple to do.
The haskell protobuf library was used because it does not need extra
tooling or build steps. So I didn't write a .proto file, but one could
fairly easily be written by following ProtocolBuffers.hs and translating
it.
ProtocolBuffers.hs is *extremely* repetative and tedious code. Surely
there must be a way to not need to write all of that? Oh well, I wrote
it..
Sizes of serialized messages:
">>> debug-me session started": 121
sending a single key press: 169
This seems equally as efficient as the binary serialization was;
that was 165 bytes before elapsedTime was added.
This commit was sponsored by Ethan Aubin.
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Incomplete, but the client is able to connect and send messages which
get logged.
Split up debug-me.hs into Role/*
Switched from cereal to binary, since websockets operate on lazy
ByteStrings, and using cereal would involve a copy on every receive.
This commit was sponsored by Boyd Stephen Smith Jr. on Patreon.
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I tried both binary and cereal. For a ActivityMessage that takes 341
bytes in JSON and has a dataSize of 129, both used 165 bytes. Went with
cereal since lazy bytestrings are not needed, and I might want to use
https://hackage.haskell.org/package/safecopy later.
(Perhaps I should be using protocol buffers or something to make it
easier for non-haskell implementations? But that would complicate things
a lot.)
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Prevent DOS of user side by limiting the size of the BackLog that
is maintained. This should not cause problems in even high latency
environments, and should prevent memory use > 16 mb.
The developer side does not keep much data, other than a list of the
Hashes of things it has recently sent, so is not susceptable to memory
DOS.
This commit was sponsored by Brock Spratlen on Patreon.
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Most of the time, ByteStrings will be able to be encoded as utf8, so avoid
base64 when not needed.
Adjusted some of the types in order to generate more usual JSON. In particular,
removed StartActivity.
The JSON now looks like this (with the signature still not populated):
{"signature":{"v":""},"prevActivity":{"hashValue":{"v":"3b1abe614dd43bdb2d9a56777884e2d0f3bac9796e2d25c1ad52bb689c117286"},"hashMethod":"SHA256"},"activity":{"echoData":{"v":""},"enteredData":{"v":"l"}}}
203 bytes to send a single keystroke is not great when there's really
only 1+64(hash) bytes of unique data. So, may end up adding a wire
encoding on top of this. But, JSON is good to have for storage of the
proofs, etc.
Also, it does compress well. Two such JSON objects gzip -9 to 219
bytes, and three to 265 bytes. So, 37 bytes per keystroke. This is
*exactly* as efficient as gzip -9 of $c$hash formatted data.
This commit was sponsored by Jack Hill on Patreon.
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