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23 Commits

Author SHA1 Message Date
Richard Holland
10aa3705f6 Merge branch 'dev' into subscription-hooks-fix 2026-08-27 11:49:23 +10:00
Richard Holland
bb244ef772 put release builds into a candidate folder to prevent auto-update scripts running before smoke tests (#761) 2026-06-21 12:12:43 +10:00
Nicholas Dudfield
93910f6295 Merge remote-tracking branch 'origin/dev' into subscription-hooks-fix 2026-06-17 14:35:15 +07:00
Nicholas Dudfield
15181211df Fix truncated RPC response handling 2026-06-15 13:29:28 +07:00
Nicholas Dudfield
c1488a7f0b test: make RPCSub queue-cap drop test deterministic
Codex review flagged the drop test as timing-dependent: a very fast
endpoint could let sendThread drain/restart between send() calls, so the
deque might not stay full and no drop would occur. Add a per-reply delay
to the mock endpoint so delivery is reliably slower than the
microsecond-fast enqueue loop — the deque stays at the cap and drops are
deterministic (received is now consistently 2/50).
2026-06-15 09:47:40 +07:00
Nicholas Dudfield
12e8e79b1f test: cover handleData read-error (non-EOF) completion path
Add a mock mode that sends a header promising more body than it
delivers then holds the socket, so the client blocks in handleData and
hits its deadline — driving the read-error branch (mShutdown != eof)
that no existing test exercised.
2026-06-11 14:01:22 +07:00
Nicholas Dudfield
d214344616 refactor: drop dead dispatched==0 guard in sendThread
With per-batch re-queue, sendThread is only ever started with a
non-empty deque (send() enqueues before starting a job; the re-queue
fires only when the deque is non-empty), so the dispatched==0 early
return was unreachable. Guard the dispatch JLOG/run() with dispatched>0
instead, which falls through to clear mSending if a batch is ever empty.
Removes an uncovered branch.
2026-06-11 14:01:21 +07:00
Nicholas Dudfield
db7ecfb86a chore: update levelization ordering for RPCSub_test xrpld.core deps
RPCSub_test.cpp includes xrpld/core/Job.h and JobQueue.h (for
jtCLIENT_SUBSCRIBE and getJobCountTotal), adding a test.net > xrpld.core
edge that wasn't regenerated when those includes were added.
2026-06-11 13:43:17 +07:00
Nicholas Dudfield
280659c32b test: close held mock sockets after joining the io_service thread
Minor: the MockHTTPServer destructor closed heldSockets_ from the main
thread while the server io_service thread could still be running. The
held sockets have no pending async op so it was benign, but move the
close to after the thread is joined to avoid the cross-thread access
entirely (no lock needed once single-threaded).
2026-06-10 17:20:11 +07:00
Nicholas Dudfield
827177d009 test: make testEOFCompletion actually exercise the EOF path
The test never set noContentLength, so the mock sent Content-Length and
completion happened in handleHeader, not the handleData EOF branch the
test targets — it passed regardless of the fix. Force the no-Content-
Length path so it covers what it claims.
2026-06-10 17:14:46 +07:00
Nicholas Dudfield
67eebc686a fix: cap webhook delivery response buffer at 1MB
RPCCall::fromNetwork hardcoded a 256MB read budget for responses with no
Content-Length. Webhook deliveries (method "event") ignore the response
body, but each in-flight delivery still pre-allocated a ~256MB streambuf
on the EOF path — up to 32 (maxInFlight) x 256MB = 8GB transient, on
exactly the no-Content-Length error shape this branch targets. Cap the
"event" method at 1MB; genuine RPC replies (CLI) keep the 256MB budget.
2026-06-10 17:14:46 +07:00
Nicholas Dudfield
60401fcb40 fix: prevent RPCSub use-after-free and worker-thread starvation
Two issues with sendThread, both surfaced by an independent review:

UAF: the sending job captured a raw `this`. An admin Unsubscribe runs
NetworkOPsImp::tryRemoveRpcSub, which erases the sub from mRpcSubMap
under mSubLock and destroys it inline — while sendThread may be running
on a job-queue worker under the *unrelated* InfoSub::mLock. The blocking
io_service.run() (up to the 30s request deadline for a hung endpoint)
makes the window large, and a hung endpoint is exactly this fix's
scenario. RPCSubImp now derives enable_shared_from_this and the job
captures weak_from_this(), re-locking it on entry so the sub stays alive
for the batch; once it's gone the job is a no-op.

Starvation: sendThread drained the entire backlog (up to 16384 events,
512 batches x up to 30s) in one job, blocking a worker thread the whole
time. With a small pool shared with consensus/ledger/RPC, a few hung
subscribers could occupy most workers. sendThread now processes ONE
batch per job and re-queues if more remain, so the worker is released
between batches and other jobs interleave.
2026-06-10 17:14:46 +07:00
Nicholas Dudfield
2d7b17ae1f test: harden RPCSub suite for coverage build; cover the drop path
The RPCSub tests crashed/timed out under the instrumented Debug coverage
build (where the full HTTP stack is ~50x slower than Release):

- Deterministic teardown: wait on JobQueue::getJobCountTotal(
  jtCLIENT_SUBSCRIBE) == 0 before destroying the sub. sendThread captures
  a raw `this`; a fixed-sleep grace raced it under slow builds → UAF.
- Lower per-test event counts (50 -> 10) so a handful of real HTTP
  deliveries finish well within the timeout under instrumentation.

Queue-cap drop coverage: make_RPCSub gains a defaulted maxQueueSize
parameter (production default unchanged at 16384) so a test can set a
tiny cap and exercise the drop path by out-pacing delivery — enqueue is
microsecond-fast while each delivery is a full round-trip — instead of
queueing 16384 events. New testQueueCapDrops confirms some events are
delivered and some dropped.

Raises RPCSub.cpp patch coverage 62% -> 87% (overall diff 65% -> 87%);
the only remaining uncovered lines are the defensive sendThread
exception catches.
2026-06-10 16:45:52 +07:00
Nicholas Dudfield
159e00570d test: add RPCSub coverage and make HTTPClient cleanup tests real
RPCSub_test (new): the webhook delivery flow control + EOF handling had
zero automated coverage. Three cases drive events through a real local
HTTP endpoint: delivery, delivery continues despite HTTP 500 responses
(the #6341 stall, exercised via EOF-delimited error replies), and
sending restarts after the queue drains (mSending reset).

HTTPClient_test mock fixes:
- heldSockets_: 'sendResponse=false' now genuinely holds the connection
  open instead of dropping the only socket shared_ptr (which closed it).
  testCleanupAfterTimeout now actually exercises the deadline path.
- await-client-EOF on Content-Length responses: the mock decrements its
  connection count only when the CLIENT closes its socket, so
  activeConnectionCount() reflects client-side FD release rather than the
  server's own lifecycle — giving testGetSelfReferenceCleanup real teeth.
- poll helpers replace fixed sleeps for the cross-thread count checks.
2026-06-10 15:59:00 +07:00
Nicholas Dudfield
202353ac8c fix: break HTTPClient::get() self-reference cycle
get() bound shared_from_this() into mBuild (a member), forming a
this -> mBuild -> shared_ptr<this> cycle that never broke after the
request completed — leaking the HTTPClientImp and its socket FD. mBuild
is only ever invoked from handleRequest(), which always runs inside an
async handler already holding a shared_from_this(), so a non-owning
this is safe and lets the object be destroyed once the request finishes.

Pre-existing (also present upstream in rippled); only the fetch path
uses get(), not the webhook delivery path.
2026-06-10 15:59:00 +07:00
Nicholas Dudfield
12cdcbcecf fix: don't translate EOF to success in HTTPClient handleData
Revert the eof->success translation from the previous commit. The
upstream rippled #6344 deliberately keeps forwarding ecResult as-is;
translating eof to success would report a truncated Content-Length
response (server closes before sending the promised N body bytes) as a
successful read and suppress HTTPClient::get() multi-site fallback.
Keeps the structural simplification (collapsed branches, early return).
2026-06-09 15:12:39 +07:00
Nicholas Dudfield
1855350b65 fix: harden RPCSub/HTTPClient delivery, porting rippled #6344 review
Backports the robustness changes that landed during review of the
upstream rippled PR (XRPLF/rippled#6344) but never made it into this
branch, plus the applicable Copilot suggestions.

RPCSub::sendThread:
- Wrap the whole dispatch loop in try/catch so mSending is reset under
  the lock on EVERY exit path (drain, dispatch throw, run() throw).
  Previously a throw from the lock-guarded dispatch block escaped
  sendThread() without clearing mSending, re-introducing the original
  stall (issue #6341) where send() never starts another job.
- Bail out (reset mSending + return) on an io_service.run() exception
  instead of silently looping.

RPCSub::send:
- Rate-limit the queue-full drop warning (once per dropLogInterval) so
  a persistently behind endpoint can't flood the log; still advance
  mSeq on every drop so consumers detect the gap.

HTTPClient::handleData:
- Collapse the identical EOF/non-EOF completion branches into one and
  early-return on read error (per maintainer review).
- Report success (not eof) to invokeComplete on the EOF-delimited path
  so callers don't treat a complete response as a failure.
2026-06-09 15:05:24 +07:00
Nicholas Dudfield
41db993a20 Merge origin/dev into subscription-hooks-fix
Resolves conflicts from the src/ripple -> src/xrpld + cmake restructure:
- src/xrpld/net/RPCSub.h: take dev's xrpld/ include paths, keep our
  removal of the now-unused boost/asio/io_service.hpp include
- Builds/CMake/RippledCore.cmake: accept dev's deletion; tests are now
  auto-discovered via GLOB_RECURSE over src/test, so the explicit
  HTTPClient_test.cpp listing is obsolete
- Builds/levelization/results/ordering.txt: regenerated via
  levelization.py (adds test.net > {xrpl.basics, xrpld.net, test.toplevel})
- src/test/net/HTTPClient_test.cpp: update ripple/ includes to xrpl//xrpld/
2026-06-09 14:53:44 +07:00
Nicholas Dudfield
7241fed6d0 refactor: remove unused io_service parameter from RPCSub
sendThread() now uses a local io_service per batch, so the app's
io_service passed via make_RPCSub is dead code. Removes it from the
header, constructor, factory function, and sole call site.
2026-02-10 13:00:28 +07:00
Nicholas Dudfield
a6dfb40413 chore: update levelization ordering for HTTPClient_test
Add test.net > ripple.basics dependency introduced by the new test file.
2026-02-10 08:23:59 +07:00
Nicholas Dudfield
3e0d6b9cd2 fix: increment mSeq on queue drop and fix flaky connection-refused test
- Advance mSeq when dropping events so consumers can detect gaps via
  sequence numbers, and log the dropped seq
- Use ephemeral port (bind + close) instead of hardcoded 19999 for the
  connection-refused test to avoid false negatives on busy machines
2026-02-10 07:52:02 +07:00
Nicholas Dudfield
a8388e48a4 fix: call invokeComplete on EOF in HTTPClient handleData
When an HTTP response has no Content-Length header, HTTPClient reads
until EOF. The EOF path in handleData logged "Complete." but never
called invokeComplete(), leaving the socket held open for the full
30s deadline timeout and the completion callback never invoked.

This is the likely root cause of webhook delivery permanently stalling
after repeated 500 errors — many web frameworks omit Content-Length on
error responses, triggering this path. Each leaked socket holds an FD
for 30s, eventually exhausting the process FD budget.

Includes HTTPClient_test with 12 test cases covering resource cleanup
across success, error, timeout, connection-refused, concurrent request,
and EOF-without-Content-Length scenarios.
2026-02-10 07:33:31 +07:00
Nicholas Dudfield
49908096d5 fix: bound subscription webhook delivery concurrency and queue size
fromNetwork() is async — it posts handlers to the io_service and
returns immediately. The original sendThread() loop fires all queued
events as concurrent HTTP connections at once. Under sustained load
with a slow/failing endpoint, connections accumulate (each held up to
30s by RPC_NOTIFY timeout), exhausting file descriptors and breaking
all network I/O for the entire process.

Fix: use a local io_service per batch with .run() to block until the
batch completes (same pattern as rpcClient() in RPCCall.cpp). This
bounds concurrent connections to maxInFlight (32) per subscriber while
still allowing parallel delivery.

Also add a queue cap (maxQueueSize = 16384, ~80-160MB) so a hopelessly
behind endpoint doesn't grow the deque indefinitely. Consumers detect
gaps via the existing seq field.

Ref: XRPLF/rippled#6341
2026-02-09 18:31:25 +07:00
27 changed files with 1728 additions and 2161 deletions

View File

@@ -77,6 +77,11 @@ test.ledger > xrpld.app
test.ledger > xrpld.core
test.ledger > xrpld.ledger
test.ledger > xrpl.protocol
test.net > test.toplevel
test.net > xrpl.basics
test.net > xrpld.core
test.net > xrpld.net
test.net > xrpl.json
test.nodestore > test.jtx
test.nodestore > test.toplevel
test.nodestore > test.unit_test

View File

@@ -95,8 +95,16 @@ if [[ "$4" == "" ]]; then
echo "Non GH, local building, no Action runner magic"
else
# GH Action, runner
cp /io/release-build/xahaud /data/builds/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4
cp /io/release-build/release.info /data/builds/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4.releaseinfo
if [[ "$(git rev-parse --abbrev-ref HEAD)" == "release" ]]; then
echo "building on the release branch... placing it in builds/candidate"
mkdir /data/builds/candidate
cp /io/release-build/xahaud /data/builds/candidate/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4
cp /io/release-build/release.info /data/builds/candidate/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4.releaseinfo
else
echo "building non-release branch, placing it in builds root"
cp /io/release-build/xahaud /data/builds/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4
cp /io/release-build/release.info /data/builds/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4.releaseinfo
fi
echo "Published build to: http://build.xahau.tech/"
echo $(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4
fi

View File

@@ -221,7 +221,6 @@
#define sfProvider ((7U << 16U) + 30U)
#define sfMPTokenMetadata ((7U << 16U) + 31U)
#define sfCredentialType ((7U << 16U) + 32U)
#define sfJsonTxBody ((7U << 16U) + 33U)
#define sfHookName ((7U << 16U) + 97U)
#define sfRemarkValue ((7U << 16U) + 98U)
#define sfRemarkName ((7U << 16U) + 99U)

View File

@@ -1,81 +0,0 @@
//------------------------------------------------------------------------------
/*
This file is part of rippled: https://github.com/ripple/rippled
Copyright (c) 2025 Ripple Labs Inc.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
*/
//==============================================================================
#ifndef RIPPLE_PROTOCOL_JSONTX_H_INCLUDED
#define RIPPLE_PROTOCOL_JSONTX_H_INCLUDED
#include <xrpl/basics/Blob.h>
#include <xrpl/basics/Expected.h>
#include <xrpl/basics/Slice.h>
#include <xrpl/basics/base_uint.h>
#include <xrpl/protocol/STTx.h>
namespace ripple {
namespace jsonTx {
/** Returns true iff the STObject declares a sfJsonTxBody field.
Used as a routing predicate: a transaction with this field present
is claimed to use the "json-tx" signing scheme and must be validated
through jsonTx::checkSignature / checkStructuralEquivalence. An
empty body field still counts as "claimed json-tx" so the empty
case is reported as a clean failure instead of silently falling
back to the classical sig path.
*/
[[nodiscard]] bool
hasBody(STObject const& obj) noexcept;
/** Borrow a Slice over the ASCII body bytes.
Returns an empty slice if sfJsonTxBody is not present. The slice is
valid for as long as the STObject the field belongs to.
*/
[[nodiscard]] Slice
body(STObject const& obj);
/** SHA-512-Half of the body bytes.
This is the deterministic "ASCII signing digest" used by json-tx:
the bytes the client sees as their message are hashed with SHA-512
and truncated to 256 bits, the same digest convention rippled uses
elsewhere. Returns a zero-valued hash if sfJsonTxBody is absent.
*/
[[nodiscard]] uint256
bodyHash(STObject const& obj);
/** Signature check only: verify sfTxnSignature against the raw bytes of
sfJsonTxBody using sfSigningPubKey.
The classical signing payload is NOT used. This is the json-tx
analogue of STTx::checkSingleSign and is intended to be called from
the same code path (e.g. STTx::checkSign).
Precondition: `stx` carries a non-empty sfJsonTxBody.
*/
[[nodiscard]] Expected<void, std::string>
checkSignature(STTx const& stx);
/** Structural-equivalence check: parse sfJsonTxBody as JSON and confirm
it serialises to the same canonical binary as the other structural
fields of `stx` (excluding sfTxnSignature and sfJsonTxBody).
This is a local-check style rule -- it should run alongside
passesLocalChecks, not inside the signature verification path.
Precondition: `stx` carries a non-empty sfJsonTxBody.
*/
[[nodiscard]] Expected<void, std::string>
checkStructuralEquivalence(STTx const& stx);
} // namespace jsonTx
} // namespace ripple
#endif

View File

@@ -40,7 +40,6 @@ XRPL_FEATURE(NamedHooks, Supported::yes, VoteBehavior::DefaultNo
XRPL_FEATURE(IOURewardClaim, Supported::yes, VoteBehavior::DefaultNo)
XRPL_FIX (IOULockedBalanceInvariant, Supported::yes, VoteBehavior::DefaultNo)
XRPL_FIX (ImportIssuer, Supported::yes, VoteBehavior::DefaultYes)
XRPL_FEATURE(JsonTx, Supported::yes, VoteBehavior::DefaultNo)
XRPL_FEATURE(HookAPISerializedType240, Supported::yes, VoteBehavior::DefaultNo)
XRPL_FEATURE(PermissionedDomains, Supported::no, VoteBehavior::DefaultNo)
XRPL_FEATURE(DynamicNFT, Supported::no, VoteBehavior::DefaultNo)

View File

@@ -293,10 +293,6 @@ TYPED_SFIELD(sfAssetClass, VL, 29)
TYPED_SFIELD(sfProvider, VL, 30)
TYPED_SFIELD(sfMPTokenMetadata, VL, 31)
TYPED_SFIELD(sfCredentialType, VL, 32)
// json-tx: the exact ASCII bytes the client signed; authoritative over
// the classical signing payload when present. Not part of the classical
// signing-payload computation (the bytes ARE the signing payload).
TYPED_SFIELD(sfJsonTxBody, VL, 33, SField::sMD_Default, SField::notSigning)
TYPED_SFIELD(sfHookName, VL, 97)
TYPED_SFIELD(sfRemarkValue, VL, 98)
TYPED_SFIELD(sfRemarkName, VL, 99)

View File

@@ -1,20 +0,0 @@
[project]
name = "json-tx"
version = "0.0.1"
description = "Prototype: canonical packing of (tx_json_str, signature) using ripple-binary-codec output as an LZ dictionary"
requires-python = ">=3.10"
dependencies = [
"xrpl-py>=4.0.0",
]
[build-system]
requires = ["hatchling"]
build-backend = "hatchling.build"
[tool.hatch.build.targets.wheel]
packages = ["src/json_tx"]
[tool.uv]
dev-dependencies = [
"pytest>=8.0",
]

View File

@@ -1,24 +0,0 @@
from json_tx import patch # noqa: F401 -- side-effect: register JsonTxCompressed
from json_tx.codec import (
JSON_TX_FIELD,
TAGS,
canonical_json,
compress_stream,
decompress_stream,
pack,
pack_wire,
unpack,
unpack_wire,
)
__all__ = [
"JSON_TX_FIELD",
"TAGS",
"canonical_json",
"compress_stream",
"decompress_stream",
"pack",
"pack_wire",
"unpack",
"unpack_wire",
]

View File

@@ -1,79 +0,0 @@
"""Demo: compare classical binary, raw JSON+sig, and JsonTxCompressed wire."""
from __future__ import annotations
import json
from xrpl.core.binarycodec import encode, encode_for_signing
from xrpl.core.keypairs import (
derive_classic_address,
derive_keypair,
generate_seed,
sign,
)
from json_tx import canonical_json, compress_stream, pack_wire, unpack_wire
SAMPLE_TX = {
"TransactionType": "Payment",
"Account": "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh",
"Destination": "rf1BiGeXwwQoi8Z2ueFYTEXSwuJYfV2Jpn",
"Amount": "1000000",
"Fee": "12",
"Sequence": 1,
"Flags": 2147483648,
"SigningPubKey": "",
}
def _report(label: str, tx: dict, tx_json_str: str, priv: str) -> None:
signature = bytes.fromhex(sign(tx_json_str.encode().hex(), priv))
# 1. Classical signed wire: full binary with TxnSignature (what xrpl does today).
classical_signing = bytes.fromhex(encode_for_signing(tx))
classical_signed_dict = dict(tx)
classical_signed_dict["TxnSignature"] = signature.hex().upper()
classical_wire = bytes.fromhex(encode(classical_signed_dict))
# 2. Naive JSON submission: tx_json_str + signature (what json-tx wants to replace).
raw_json_plus_sig = len(tx_json_str) + len(signature)
# 3. json-tx wire: classical binary (ex TxnSignature) + JsonTxCompressed + TxnSignature.
stream = compress_stream(tx_json_str, tx_json=tx)
jsontx_wire = pack_wire(tx_json_str, signature)
print(f"\n== {label} ==")
print(f" tx_json_str : {len(tx_json_str):5d} bytes")
print(f" signature : {len(signature):5d} bytes")
print(f" classical binary (signing payload): {len(classical_signing):5d} bytes")
print(f" classical wire (binary + sig) : {len(classical_wire):5d} bytes <- today")
print(f" raw JSON + sig (bytes sent) : {raw_json_plus_sig:5d} bytes <- naive json submit")
print(f" JsonTxCompressed stream alone : {len(stream):5d} bytes [mode=0x{stream[0]:02x}]")
print(f" json-tx wire (classical + stream) : {len(jsontx_wire):5d} bytes <- proposed")
delta_vs_classical = len(jsontx_wire) - len(classical_wire)
print(f" overhead vs classical wire : {delta_vs_classical:+5d} bytes")
delta_vs_raw = len(jsontx_wire) - raw_json_plus_sig
print(f" overhead vs raw JSON+sig : {delta_vs_raw:+5d} bytes")
recovered_tx, recovered_str, recovered_sig = unpack_wire(jsontx_wire)
assert recovered_str == tx_json_str
assert recovered_sig == signature
assert recovered_tx == tx
def main() -> None:
seed = generate_seed()
pub, priv = derive_keypair(seed)
tx = dict(SAMPLE_TX)
tx["Account"] = derive_classic_address(pub)
tx["SigningPubKey"] = pub
_report("canonical tx_json_str (ordinal order, no whitespace)",
tx, canonical_json(tx), priv)
_report("non-canonical tx_json_str (insertion order + spaces)",
tx, json.dumps(tx, separators=(", ", ": ")), priv)
if __name__ == "__main__":
main()

View File

@@ -1,384 +0,0 @@
"""
json-tx: field-aware packer for (tx_json_str, signature).
The ripple binary codec already decomposes a transaction into ordered
(field_name, canonical_bytes) pairs. We reuse that as the dictionary.
Opcode stream:
OP_FIELD i -> render field i exactly as it appears in tx_json_str
OP_TAG t -> emit a glue snippet from TAGS (',', ':', '"', ...)
OP_RAW n <bytes> -> n bytes of literal passthrough
OP_END -> terminator
The stream is what gets stored in the `JsonTxCompressed` Blob field on
the wire. The TxnSignature field still carries the ed25519/secp256k1
signature, but that signature is now over the ASCII `tx_json_str`, not
the classical signing payload.
"""
from __future__ import annotations
import json
from dataclasses import dataclass
from typing import Any
from xrpl.core.binarycodec.definitions.field_instance import FieldInstance
from xrpl.core.binarycodec.types.st_object import STObject
# `patch` registers the JsonTxCompressed field. Imported for its side effect.
from json_tx import patch as _patch # noqa: F401
OP_FIELD = 0x01 # emit `"<name>":<canonical-value>` (tight pair)
OP_TAG = 0x02 # emit a structural glue byte
OP_RAW = 0x03 # length-prefixed literal bytes
OP_NAME = 0x04 # emit `"<name>"` for field i
OP_VALUE = 0x05 # emit canonical rendering of field i's value
OP_END = 0x00
# Mode byte at the head of every stream.
MODE_CANONICAL = 0x00 # body is an OP_* stream; tx_json_str reconstructs via dictionary
MODE_VERBATIM = 0x01 # body is raw UTF-8 tx_json_str, length-prefixed
JSON_TX_FIELD = _patch.FIELD_NAME
# Structural glue. INVARIANT: no tag may end in `"` -- otherwise it would
# eat the leading `"` of a field NAME/FIELD rendering and prevent re-align.
# Order: longest first so the greedy matcher picks the most specific glue.
TAGS: list[bytes] = [
# comma-based field separators
b",\n ",
b",\n\t",
b",\n ",
b",\n ",
b",\n",
b", ",
# colon-based name:value separators
b": ",
b": ",
# leading indent after `{`
b"\n ",
b"\n\t",
b"\n ",
b"\n ",
# single chars
b"{",
b"}",
b"[",
b"]",
b",",
b":",
b'"',
b" ",
b"\n",
b"\t",
]
# ---------- varint (unsigned LEB128) ----------
def _vw(n: int) -> bytes:
if n < 0:
raise ValueError("varint must be non-negative")
out = bytearray()
while True:
b = n & 0x7F
n >>= 7
if n:
out.append(b | 0x80)
else:
out.append(b)
return bytes(out)
def _vr(buf: bytes, i: int) -> tuple[int, int]:
n = 0
shift = 0
while True:
b = buf[i]
i += 1
n |= (b & 0x7F) << shift
if not (b & 0x80):
return n, i
shift += 7
# ---------- canonical field extraction ----------
@dataclass
class CanonField:
name: str
instance: FieldInstance
canonical_bytes: bytes
value: Any
def _ordered_fields_from_dict(tx_json: dict, *, skip: set[str]) -> list[CanonField]:
"""Serialize tx_json once through STObject, then re-parse to slice each field."""
from xrpl.core.binarycodec.binary_wrappers.binary_parser import BinaryParser
from xrpl.core.binarycodec.definitions import definitions
tx_for_enc = {k: v for k, v in tx_json.items() if k not in skip}
st = STObject.from_value(tx_for_enc)
blob = bytes(st)
parser = BinaryParser(blob.hex())
total = len(parser)
fields: list[CanonField] = []
while not parser.is_end():
start = total - len(parser)
fi = parser.read_field()
parser.read_field_value(fi)
end = total - len(parser)
fields.append(
CanonField(
name=fi.name,
instance=definitions.get_field_instance(fi.name),
canonical_bytes=blob[start:end],
value=tx_json[fi.name],
)
)
return fields
def _render_name(name: str) -> bytes:
"""Render `"Name"` including the enclosing double-quotes."""
return json.dumps(name, separators=(",", ":")).encode()
def _render_value(value: Any) -> bytes:
"""Render the canonical JSON form of a value."""
return json.dumps(value, separators=(",", ":")).encode()
def _render_field_json(name: str, value: Any) -> bytes:
"""Render one tight `"Name":<value>` pair -- no whitespace."""
return _render_name(name) + b":" + _render_value(value)
def canonical_json(tx_json: dict) -> str:
"""Serialize tx_json with fields in canonical (ordinal) order.
The signed ASCII JSON must match this ordering so the opcode stream
can walk fields in lock-step with the binary dictionary. Any field the
codec does not recognize falls to the tail in insertion order.
"""
from xrpl.core.binarycodec.definitions import definitions
known, unknown = [], []
for k, v in tx_json.items():
try:
fi = definitions.get_field_instance(k)
known.append((fi.ordinal, k, v))
except Exception:
unknown.append((k, v))
known.sort(key=lambda x: x[0])
ordered = [(k, v) for _o, k, v in known] + unknown
body = ",".join(
f"{json.dumps(k, separators=(',', ':'))}:"
f"{json.dumps(v, separators=(',', ':'))}"
for k, v in ordered
)
return "{" + body + "}"
# ---------- stream codec (opcode layer only) ----------
def compress_stream(tx_json_str: str, *, tx_json: dict | None = None) -> bytes:
"""Encode tx_json_str using tx_json's fields as dictionary.
Opcodes (after the mode byte):
OP_FIELD i -- `"Name":<canonical-value>` tight pair (no whitespace)
OP_NAME i -- `"Name"` alone (enclosing quotes included)
OP_VALUE i -- canonical rendering of field i's value
OP_TAG t -- structural glue from TAGS
OP_RAW n.. -- literal passthrough
The matcher at each cursor position tries, longest-match first:
1. OP_FIELD against any unused field pair
2. OP_NAME against any unused field name
3. OP_VALUE against any unused field value
4. OP_TAG
5. OP_RAW (one byte, coalesced)
If the resulting OP stream is not shorter than a verbatim copy, we
emit MODE_VERBATIM instead.
"""
if tx_json is None:
tx_json = json.loads(tx_json_str)
src = tx_json_str.encode()
fields = _ordered_fields_from_dict(
tx_json, skip={"TxnSignature", JSON_TX_FIELD}
)
name_render = [_render_name(f.name) for f in fields]
value_render = [_render_value(f.value) for f in fields]
pair_render = [name_render[i] + b":" + value_render[i] for i in range(len(fields))]
unused_pair = set(range(len(fields)))
unused_name = set(range(len(fields)))
unused_value = set(range(len(fields)))
body = bytearray()
raw_buf = bytearray()
def flush_raw() -> None:
if raw_buf:
body.append(OP_RAW)
body.extend(_vw(len(raw_buf)))
body.extend(raw_buf)
raw_buf.clear()
def best_match(candidates: set[int], renders: list[bytes], at: int) -> tuple[int, int]:
best_idx, best_len = -1, 0
for idx in candidates:
r = renders[idx]
if len(r) > best_len and src.startswith(r, at):
best_idx, best_len = idx, len(r)
return best_idx, best_len
i = 0
while i < len(src):
# Try the tight FIELD match first -- cheapest per byte of output.
idx, hit = best_match(unused_pair, pair_render, i)
if idx >= 0:
flush_raw()
body.append(OP_FIELD)
body.extend(_vw(idx))
i += hit
unused_pair.discard(idx)
unused_name.discard(idx)
unused_value.discard(idx)
continue
# Then NAME (standalone), preferring longer names over shorter ones.
idx, hit = best_match(unused_name, name_render, i)
if idx >= 0:
flush_raw()
body.append(OP_NAME)
body.extend(_vw(idx))
i += hit
unused_name.discard(idx)
unused_pair.discard(idx) # no longer a "pair" candidate
continue
# Then VALUE (standalone).
idx, hit = best_match(unused_value, value_render, i)
if idx >= 0:
flush_raw()
body.append(OP_VALUE)
body.extend(_vw(idx))
i += hit
unused_value.discard(idx)
unused_pair.discard(idx)
continue
# Structural glue.
tag_hit = -1
for t_idx, tag in enumerate(TAGS):
if src.startswith(tag, i):
tag_hit = t_idx
break
if tag_hit >= 0:
flush_raw()
body.append(OP_TAG)
body.extend(_vw(tag_hit))
i += len(TAGS[tag_hit])
continue
raw_buf.append(src[i])
i += 1
flush_raw()
body.append(OP_END)
op_form = bytes([MODE_CANONICAL]) + bytes(body)
verbatim = bytes([MODE_VERBATIM]) + _vw(len(src)) + src
return op_form if len(op_form) <= len(verbatim) else verbatim
def decompress_stream(stream: bytes, tx_json_for_dict: dict) -> str:
"""Rebuild tx_json_str from a json-tx stream + a parsed tx dict (dictionary source)."""
mode = stream[0]
i = 1
if mode == MODE_VERBATIM:
ln, i = _vr(stream, i)
return stream[i : i + ln].decode()
if mode != MODE_CANONICAL:
raise ValueError(f"unknown json-tx stream mode 0x{mode:02x}")
fields = _ordered_fields_from_dict(
tx_json_for_dict,
skip={"TxnSignature", JSON_TX_FIELD},
)
name_render = [_render_name(f.name) for f in fields]
value_render = [_render_value(f.value) for f in fields]
pair_render = [name_render[i] + b":" + value_render[i] for i in range(len(fields))]
out = bytearray()
while i < len(stream):
op = stream[i]
i += 1
if op == OP_END:
break
if op == OP_FIELD:
idx, i = _vr(stream, i)
out += pair_render[idx]
elif op == OP_NAME:
idx, i = _vr(stream, i)
out += name_render[idx]
elif op == OP_VALUE:
idx, i = _vr(stream, i)
out += value_render[idx]
elif op == OP_TAG:
idx, i = _vr(stream, i)
out += TAGS[idx]
elif op == OP_RAW:
ln, i = _vr(stream, i)
out += stream[i : i + ln]
i += ln
else:
raise ValueError(f"unknown opcode 0x{op:02x} at offset {i - 1}")
return out.decode()
# ---------- wire-tx pack/unpack (full binary with JsonTxCompressed) ----------
def pack_wire(tx_json_str: str, signature: bytes) -> bytes:
"""Build the on-wire binary tx: canonical binary + JsonTxCompressed + TxnSignature.
`tx_json_str` is the exact ASCII bytes the client signed -- any field
order / whitespace. `signature` is the raw signature over those bytes.
"""
from xrpl.core.binarycodec.main import encode
tx_json = json.loads(tx_json_str)
stream = compress_stream(tx_json_str, tx_json=tx_json)
wire_dict = dict(tx_json)
wire_dict[JSON_TX_FIELD] = stream.hex().upper()
wire_dict["TxnSignature"] = signature.hex().upper()
return bytes.fromhex(encode(wire_dict))
def unpack_wire(wire: bytes) -> tuple[dict, str, bytes]:
"""Decode the wire tx back into (tx_json_dict, tx_json_str, signature)."""
from xrpl.core.binarycodec.main import decode
decoded = decode(wire.hex().upper())
stream_hex = decoded.pop(JSON_TX_FIELD)
sig_hex = decoded.pop("TxnSignature")
# The dictionary is the other fields of the tx, i.e. the decoded dict
# minus the scaffolding keys (already removed above).
tx_json_str = decompress_stream(bytes.fromhex(stream_hex), decoded)
return json.loads(tx_json_str), tx_json_str, bytes.fromhex(sig_hex)
# ---------- convenience ----------
def pack(tx_json: dict, signature: bytes) -> bytes:
"""Alias for pack_wire for the common case."""
return pack_wire(tx_json, signature)
def unpack(wire: bytes) -> tuple[dict, bytes]:
tx_json, _, sig = unpack_wire(wire)
return tx_json, sig

View File

@@ -1,50 +0,0 @@
"""Runtime monkey-patch: register a `JsonTxCompressed` Blob field.
Import this module (or call `register_json_tx_field()`) before using the
binary codec so that a transaction dict containing `JsonTxCompressed`
will serialize it as a Blob and parse it back out.
The field is intentionally `isSigningField=False` — the ASCII JSON is
what TxnSignature signs, not the binary form, so this field must not
participate in any classical signing payload.
"""
from __future__ import annotations
from xrpl.core.binarycodec.definitions import definitions as _d
from xrpl.core.binarycodec.definitions.field_header import FieldHeader
from xrpl.core.binarycodec.definitions.field_info import FieldInfo
FIELD_NAME = "JsonTxCompressed"
_TYPE_NAME = "Blob"
def _pick_free_nth_for_type(type_name: str) -> int:
"""Find an unused `nth` code within the given type so there's no header clash."""
type_code = _d._TYPE_ORDINAL_MAP[type_name]
taken = {
h.field_code for h in _d._FIELD_HEADER_NAME_MAP if h.type_code == type_code
}
for n in range(1, 255):
if n not in taken:
return n
raise RuntimeError(f"no free nth code for type {type_name}")
def register_json_tx_field() -> None:
if FIELD_NAME in _d._FIELD_INFO_MAP:
return
nth = _pick_free_nth_for_type(_TYPE_NAME)
info = FieldInfo(
nth=nth,
is_variable_length_encoded=True,
is_serialized=True,
is_signing_field=False,
type_name=_TYPE_NAME,
)
header = FieldHeader(_d._TYPE_ORDINAL_MAP[_TYPE_NAME], nth)
_d._FIELD_INFO_MAP[FIELD_NAME] = info
_d._FIELD_HEADER_NAME_MAP[header] = FIELD_NAME
register_json_tx_field()

View File

@@ -1,63 +0,0 @@
import json
from xrpl.core.keypairs import derive_classic_address, derive_keypair, generate_seed, sign
from json_tx import compress_stream, decompress_stream, pack_wire, unpack_wire
def _signed(tx: dict) -> tuple[dict, str, bytes]:
seed = generate_seed()
pub, priv = derive_keypair(seed)
tx = dict(tx)
tx["Account"] = derive_classic_address(pub)
tx["SigningPubKey"] = pub
from json_tx import canonical_json
tx_json_str = canonical_json(tx)
sig = bytes.fromhex(sign(tx_json_str.encode().hex(), priv))
return tx, tx_json_str, sig
def test_wire_roundtrip():
tx, tx_json_str, sig = _signed({
"TransactionType": "Payment",
"Destination": "rf1BiGeXwwQoi8Z2ueFYTEXSwuJYfV2Jpn",
"Amount": "1000000",
"Fee": "12",
"Sequence": 1,
"Flags": 2147483648,
})
wire = pack_wire(tx_json_str, sig)
recovered_tx, recovered_str, recovered_sig = unpack_wire(wire)
assert recovered_str == tx_json_str
assert recovered_sig == sig
assert recovered_tx == tx
def test_stream_roundtrip_direct():
tx, tx_json_str, _ = _signed({
"TransactionType": "Payment",
"Destination": "rf1BiGeXwwQoi8Z2ueFYTEXSwuJYfV2Jpn",
"Amount": "2500000",
"Fee": "15",
"Sequence": 42,
"Flags": 0,
})
stream = compress_stream(tx_json_str, tx_json=tx)
rebuilt = decompress_stream(stream, tx)
assert rebuilt == tx_json_str
def test_raw_fallback_preserved():
# Unusual whitespace -> RAW opcodes. Dictionary still reconstructs losslessly.
tx = {
"TransactionType": "Payment",
"Account": "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh",
"Destination": "rf1BiGeXwwQoi8Z2ueFYTEXSwuJYfV2Jpn",
"Amount": "1",
"Fee": "12",
"Sequence": 1,
"SigningPubKey": "",
}
odd = '{ "TransactionType" : "Payment" }'
stream = compress_stream(odd, tx_json=tx)
assert decompress_stream(stream, tx) == odd

476
json-tx-py/uv.lock generated
View File

@@ -1,476 +0,0 @@
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View File

@@ -1,187 +0,0 @@
//------------------------------------------------------------------------------
/*
This file is part of rippled: https://github.com/ripple/rippled
Copyright (c) 2025 Ripple Labs Inc.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
*/
//==============================================================================
#include <xrpl/protocol/JsonTx.h>
#include <xrpl/basics/StringUtilities.h>
#include <xrpl/basics/strHex.h>
#include <xrpl/json/json_reader.h>
#include <xrpl/protocol/PublicKey.h>
#include <xrpl/protocol/SField.h>
#include <xrpl/protocol/STBase.h>
#include <xrpl/protocol/STBlob.h>
#include <xrpl/protocol/STObject.h>
#include <xrpl/protocol/STParsedJSON.h>
#include <xrpl/protocol/Serializer.h>
#include <xrpl/protocol/digest.h>
#include <xrpl/protocol/jss.h>
#include <algorithm>
#include <initializer_list>
#include <string>
#include <vector>
namespace ripple {
namespace jsonTx {
namespace {
/** Canonical serialization of `obj` with the given fields removed.
STObject's own serialization already sorts by field code, but we
have to walk the fields ourselves to skip the json-tx wrapper
entries rather than mutate the object. */
Blob
canonicalSerialization(
STObject const& obj,
std::initializer_list<SField const*> skip)
{
std::vector<STBase const*> fields;
for (auto const& entry : obj)
{
if (entry.getSType() == STI_NOTPRESENT)
continue;
bool skipped = false;
for (SField const* s : skip)
if (entry.getFName() == *s)
{
skipped = true;
break;
}
if (!skipped)
fields.push_back(&entry);
}
std::sort(
fields.begin(), fields.end(), [](STBase const* a, STBase const* b) {
return a->getFName().fieldCode < b->getFName().fieldCode;
});
Serializer s;
for (STBase const* f : fields)
{
f->addFieldID(s);
f->add(s);
auto const sType = f->getSType();
if (sType == STI_ARRAY || sType == STI_OBJECT)
s.addFieldID(sType, 1);
}
return s.getData();
}
} // namespace
bool
hasBody(STObject const& obj) noexcept
{
try
{
return obj.isFieldPresent(sfJsonTxBody);
}
catch (...)
{
return false;
}
}
Slice
body(STObject const& obj)
{
if (!obj.isFieldPresent(sfJsonTxBody))
return Slice{};
// peekAtField gives us a view into the STObject's owned storage;
// STBlob::value() returns a Slice over that storage directly.
auto const& field = obj.peekAtField(sfJsonTxBody);
return static_cast<STBlob const&>(field).value();
}
uint256
bodyHash(STObject const& obj)
{
auto const s = body(obj);
if (s.empty())
return uint256{};
return sha512Half(s);
}
Expected<void, std::string>
checkSignature(STTx const& stx)
{
if (!hasBody(stx))
return Unexpected<std::string>("JsonTxBody field is missing.");
auto const bodySlice = body(stx);
if (bodySlice.empty())
return Unexpected<std::string>("JsonTxBody is empty.");
if (!stx.isFieldPresent(sfSigningPubKey))
return Unexpected<std::string>("SigningPubKey is missing.");
Blob const spk = stx.getFieldVL(sfSigningPubKey);
if (!publicKeyType(makeSlice(spk)))
return Unexpected<std::string>("SigningPubKey is not a valid key.");
if (!stx.isFieldPresent(sfTxnSignature))
return Unexpected<std::string>("TxnSignature is missing.");
Blob const sig = stx.getFieldVL(sfTxnSignature);
if (sig.empty())
return Unexpected<std::string>("TxnSignature is empty.");
if (!verify(PublicKey(makeSlice(spk)), bodySlice, makeSlice(sig)))
return Unexpected<std::string>(
"Signature over JsonTxBody failed verification.");
return {};
}
Expected<void, std::string>
checkStructuralEquivalence(STTx const& stx)
{
if (!hasBody(stx))
return Unexpected<std::string>("JsonTxBody field is missing.");
auto const bodySlice = body(stx);
if (bodySlice.empty())
return Unexpected<std::string>("JsonTxBody is empty.");
std::string const bodyStr(
reinterpret_cast<char const*>(bodySlice.data()), bodySlice.size());
Json::Value parsed;
Json::Reader reader;
if (!reader.parse(bodyStr, parsed) || !parsed.isObject())
return Unexpected<std::string>(
"JsonTxBody is not a valid JSON object.");
STParsedJSONObject parsedObj("JsonTxBody", parsed);
if (!parsedObj.object)
return Unexpected<std::string>(
"JsonTxBody does not parse into a valid STObject: " +
(parsedObj.error.isMember(jss::error_message)
? parsedObj.error[jss::error_message].asString()
: std::string("unknown parse error")));
// The json-tx wrapper fields (TxnSignature, JsonTxBody) are excluded
// from both sides: TxnSignature covers the body bytes (not the
// binary), and JsonTxBody is the body itself.
std::initializer_list<SField const*> const skip{
&sfTxnSignature, &sfJsonTxBody};
if (canonicalSerialization(stx, skip) !=
canonicalSerialization(*parsedObj.object, skip))
return Unexpected<std::string>(
"JsonTxBody content does not match the structural fields "
"of the transaction.");
return {};
}
} // namespace jsonTx
} // namespace ripple

View File

@@ -25,7 +25,6 @@
#include <xrpl/json/to_string.h>
#include <xrpl/protocol/Feature.h>
#include <xrpl/protocol/HashPrefix.h>
#include <xrpl/protocol/JsonTx.h>
#include <xrpl/protocol/Protocol.h>
#include <xrpl/protocol/PublicKey.h>
#include <xrpl/protocol/STAccount.h>
@@ -217,14 +216,6 @@ STTx::checkSign(
{
try
{
// json-tx: when sfJsonTxBody is present and the amendment is
// active, the signature covers the raw ASCII bytes of the body
// instead of the classical signing payload. Structural
// equivalence between the body and the other STTx fields is
// enforced separately in passesLocalChecks.
if (rules.enabled(featureJsonTx) && jsonTx::hasBody(*this))
return jsonTx::checkSignature(*this);
// Determine whether we're single- or multi-signing by looking
// at the SigningPubKey. If it's empty we must be
// multi-signing. Otherwise we're single-signing.
@@ -672,21 +663,6 @@ passesLocalChecks(STObject const& st, std::string& reason)
return false;
}
// json-tx: if the tx carries sfJsonTxBody, its parsed content must
// match the other structural fields. We can only run this when the
// object is actually an STTx -- passesLocalChecks is also called on
// nested STObjects that don't participate in the json-tx scheme.
if (auto const* stx = dynamic_cast<STTx const*>(&st);
stx && jsonTx::hasBody(*stx))
{
if (auto const result = jsonTx::checkStructuralEquivalence(*stx);
!result)
{
reason = result.error();
return false;
}
}
return true;
}

View File

@@ -43,8 +43,7 @@ TxFormats::TxFormats()
{sfSigningPubKey, soeREQUIRED},
{sfTicketSequence, soeOPTIONAL},
{sfTxnSignature, soeOPTIONAL},
{sfJsonTxBody, soeOPTIONAL}, // json-tx: ASCII bytes that were signed
{sfSigners, soeOPTIONAL}, // submit_multisigned
{sfSigners, soeOPTIONAL}, // submit_multisigned
{sfEmitDetails, soeOPTIONAL},
{sfFirstLedgerSequence, soeOPTIONAL},
{sfNetworkID, soeOPTIONAL},

View File

@@ -1,436 +0,0 @@
//------------------------------------------------------------------------------
/*
This file is part of rippled: https://github.com/ripple/rippled
Copyright (c) 2025 Ripple Labs Inc.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
*/
//==============================================================================
#include <test/jtx.h>
#include <xrpl/basics/Slice.h>
#include <xrpl/basics/strHex.h>
#include <xrpl/json/json_reader.h>
#include <xrpl/protocol/Feature.h>
#include <xrpl/protocol/JsonTx.h>
#include <xrpl/protocol/PublicKey.h>
#include <xrpl/protocol/STParsedJSON.h>
#include <xrpl/protocol/SecretKey.h>
#include <xrpl/protocol/Sign.h>
#include <xrpl/protocol/digest.h>
#include <xrpl/protocol/jss.h>
namespace ripple {
namespace test {
struct JsonTx_test : public beast::unit_test::suite
{
// Build a canonical Payment tx_json_str for `from` -> `to` with the given
// drops amount and sequence. Field order follows XRPL ordinal order so
// the json-tx codec can compress it maximally; tests here don't care
// about compression but the node accepts any valid JSON shape.
static std::string
buildPaymentJson(
jtx::Account const& from,
jtx::Account const& to,
std::uint64_t amountDrops,
std::uint32_t sequence,
std::uint64_t fee)
{
std::string const pkHex = strHex(from.pk().slice());
std::ostringstream os;
os << "{"
<< R"("TransactionType":"Payment",)"
<< R"("Flags":2147483648,)"
<< R"("Sequence":)" << sequence << ","
<< R"("Amount":")" << amountDrops << R"(",)"
<< R"("Fee":")" << fee << R"(",)"
<< R"("SigningPubKey":")" << pkHex << R"(",)"
<< R"("Account":")" << from.human() << R"(",)"
<< R"("Destination":")" << to.human() << R"(")"
<< "}";
return os.str();
}
// Sign the UTF-8 bytes of tx_json_str with `from`'s secret key.
static Buffer
signBody(jtx::Account const& from, std::string const& tx_json_str)
{
return sign(
from.pk(),
from.sk(),
Slice{tx_json_str.data(), tx_json_str.size()});
}
static Json::Value
rpcSubmit(
jtx::Env& env,
std::string const& tx_json_str,
Buffer const& signature)
{
Json::Value params(Json::objectValue);
params["tx_json_str"] = tx_json_str;
params[jss::signature] = strHex(signature);
return env.rpc("json", "submit_json_tx", to_string(params));
}
// ---------- RPC-level tests ----------
void
testEnabledGate(FeatureBitset features)
{
testcase("enabled (feature gate)");
using namespace jtx;
for (bool const withFeature : {true, false})
{
auto const amend =
withFeature ? features : features - featureJsonTx;
Env env{*this, amend};
Account const alice{"alice"};
Account const bob{"bob"};
env.fund(XRP(1000), alice, bob);
env.close();
auto const fee = env.current()->fees().base.drops();
auto const txJson =
buildPaymentJson(alice, bob, 1'000'000, env.seq(alice), fee);
auto const sig = signBody(alice, txJson);
auto const result = rpcSubmit(env, txJson, sig);
env.close();
auto const& inner = result[jss::result];
if (withFeature)
{
BEAST_EXPECT(inner[jss::engine_result] == "tesSUCCESS");
BEAST_EXPECT(inner[jss::applied].asBool());
}
else
{
// Amendment is off -> the RPC itself rejects the
// submission before any classical verification.
BEAST_EXPECT(inner[jss::error].asString() == "notEnabled");
}
}
}
void
testBasicRoundtrip(FeatureBitset features)
{
testcase("basic payment roundtrip");
using namespace jtx;
Env env{*this, features};
Account const alice{"alice"};
Account const bob{"bob"};
env.fund(XRP(1000), alice, bob);
env.close();
auto const preAlice = env.balance(alice);
auto const preBob = env.balance(bob);
auto const feeDrops = env.current()->fees().base;
auto const txJson = buildPaymentJson(
alice, bob, 1'000'000, env.seq(alice), feeDrops.drops());
auto const sig = signBody(alice, txJson);
auto const result = rpcSubmit(env, txJson, sig);
env.close();
auto const& inner = result[jss::result];
BEAST_EXPECT(inner[jss::engine_result] == "tesSUCCESS");
BEAST_EXPECT(inner[jss::applied].asBool());
BEAST_EXPECT(inner["tx_json_str"].asString() == txJson);
BEAST_EXPECT(env.balance(alice) == preAlice - XRP(1) - feeDrops);
BEAST_EXPECT(env.balance(bob) == preBob + XRP(1));
}
void
testMissingParams(FeatureBitset features)
{
testcase("missing params");
using namespace jtx;
Env env{*this, features};
Account const alice{"alice"};
env.fund(XRP(1000), alice);
env.close();
auto const txJson = buildPaymentJson(
alice,
Account{"bob"},
1'000'000,
env.seq(alice),
env.current()->fees().base.drops());
auto const sig = signBody(alice, txJson);
// No tx_json_str.
{
Json::Value p(Json::objectValue);
p[jss::signature] = strHex(sig);
auto const r = env.rpc("json", "submit_json_tx", to_string(p));
BEAST_EXPECT(r[jss::result][jss::error] == "invalidParams");
}
// No signature.
{
Json::Value p(Json::objectValue);
p["tx_json_str"] = txJson;
auto const r = env.rpc("json", "submit_json_tx", to_string(p));
BEAST_EXPECT(r[jss::result][jss::error] == "invalidParams");
}
// Signature is not valid hex.
{
Json::Value p(Json::objectValue);
p["tx_json_str"] = txJson;
p[jss::signature] = "notahex";
auto const r = env.rpc("json", "submit_json_tx", to_string(p));
BEAST_EXPECT(r[jss::result][jss::error] == "invalidParams");
}
}
void
testInvalidJson(FeatureBitset features)
{
testcase("invalid tx_json_str");
using namespace jtx;
Env env{*this, features};
Account const alice{"alice"};
env.fund(XRP(1000), alice);
env.close();
// Syntactically invalid JSON.
{
std::string const bad = "{not valid json";
auto const sig = signBody(alice, bad);
auto const r = rpcSubmit(env, bad, sig);
BEAST_EXPECT(
r[jss::result][jss::error].asString() == "invalidTransaction");
}
// Valid JSON but not an object.
{
std::string const arr = R"([1,2,3])";
auto const sig = signBody(alice, arr);
auto const r = rpcSubmit(env, arr, sig);
BEAST_EXPECT(
r[jss::result][jss::error].asString() == "invalidTransaction");
}
}
void
testBadSignature(FeatureBitset features)
{
testcase("bad signature");
using namespace jtx;
Env env{*this, features};
Account const alice{"alice"};
Account const bob{"bob"};
env.fund(XRP(1000), alice, bob);
env.close();
auto const txJson = buildPaymentJson(
alice,
bob,
1'000'000,
env.seq(alice),
env.current()->fees().base.drops());
auto sig = signBody(alice, txJson);
// Flip a bit in the signature.
std::vector<std::uint8_t> corrupted(
sig.data(), sig.data() + sig.size());
corrupted.at(0) ^= 0x01;
Buffer bad(corrupted.data(), corrupted.size());
auto const result = rpcSubmit(env, txJson, bad);
BEAST_EXPECT(
result[jss::result][jss::error].asString() == "invalidTransaction");
}
void
testSignatureOverDifferentBytesFails(FeatureBitset features)
{
testcase("signature over different bytes");
using namespace jtx;
Env env{*this, features};
Account const alice{"alice"};
Account const bob{"bob"};
env.fund(XRP(1000), alice, bob);
env.close();
auto const txJson = buildPaymentJson(
alice,
bob,
1'000'000,
env.seq(alice),
env.current()->fees().base.drops());
// Sign a different string -- same tx, different bytes.
auto const otherJson = txJson + " ";
auto const sig = signBody(alice, otherJson);
auto const result = rpcSubmit(env, txJson, sig);
BEAST_EXPECT(
result[jss::result][jss::error].asString() == "invalidTransaction");
}
void
testWrongSigningPubKey(FeatureBitset features)
{
testcase("wrong SigningPubKey");
using namespace jtx;
Env env{*this, features};
Account const alice{"alice"};
Account const bob{"bob"};
Account const mallory{"mallory"};
env.fund(XRP(1000), alice, bob, mallory);
env.close();
// Alice's account, but signed with mallory's key: claim alice's
// SigningPubKey -> sig fails to verify. Then also try with
// mallory's SigningPubKey: sig verifies but Account mismatch
// causes downstream failure (tecNO_AUTH or similar).
auto txJson = buildPaymentJson(
alice,
bob,
1'000'000,
env.seq(alice),
env.current()->fees().base.drops());
auto const badSig = signBody(mallory, txJson);
auto const r = rpcSubmit(env, txJson, badSig);
BEAST_EXPECT(
r[jss::result][jss::error].asString() == "invalidTransaction");
}
// ---------- helper-level unit tests (no RPC) ----------
void
testHelperDirectly(FeatureBitset features)
{
testcase("helper functions direct");
using namespace jtx;
Env env{*this, features};
Account const alice{"alice"};
Account const bob{"bob"};
env.fund(XRP(1000), alice, bob);
env.close();
std::string const txJson = buildPaymentJson(
alice,
bob,
1'000'000,
env.seq(alice),
env.current()->fees().base.drops());
auto const sig = signBody(alice, txJson);
// Assemble an STTx mirroring what the node would produce from
// submit_json_tx.
Json::Value parsed;
Json::Reader reader;
BEAST_EXPECT(reader.parse(txJson, parsed) && parsed.isObject());
parsed[jss::TxnSignature] = strHex(sig);
parsed[sfJsonTxBody.jsonName] = strHex(txJson);
STParsedJSONObject parsedObj("tx", parsed);
BEAST_EXPECT(static_cast<bool>(parsedObj.object));
STTx const stx(std::move(*parsedObj.object));
// hasBody / body / bodyHash
BEAST_EXPECT(jsonTx::hasBody(stx));
auto const slice = jsonTx::body(stx);
BEAST_EXPECT(slice.size() == txJson.size());
BEAST_EXPECT(
std::memcmp(slice.data(), txJson.data(), txJson.size()) == 0);
auto const h = jsonTx::bodyHash(stx);
BEAST_EXPECT(h == sha512Half(Slice{txJson.data(), txJson.size()}));
// Signature check passes on a well-formed tx.
BEAST_EXPECT(static_cast<bool>(jsonTx::checkSignature(stx)));
// Structural equivalence passes.
BEAST_EXPECT(
static_cast<bool>(jsonTx::checkStructuralEquivalence(stx)));
// Tamper with the body -- change Amount in the ASCII without
// touching the structural fields. Signature will still be over
// the original bytes, so we re-sign over the new body so we
// isolate the structural-equivalence check.
std::string tampered = txJson;
auto const needle = std::string(R"("Amount":"1000000")");
auto const pos = tampered.find(needle);
BEAST_EXPECT(pos != std::string::npos);
tampered.replace(pos, needle.size(), R"("Amount":"9000000")");
auto const tamperedSig = signBody(alice, tampered);
Json::Value mismatched = parsed;
mismatched[jss::TxnSignature] = strHex(tamperedSig);
mismatched[sfJsonTxBody.jsonName] = strHex(tampered);
STParsedJSONObject mismatchedObj("tx", mismatched);
BEAST_EXPECT(static_cast<bool>(mismatchedObj.object));
STTx const mismatchedTx(std::move(*mismatchedObj.object));
// Signature now verifies over the tampered body...
BEAST_EXPECT(static_cast<bool>(jsonTx::checkSignature(mismatchedTx)));
// ...but structural equivalence fails.
BEAST_EXPECT(!jsonTx::checkStructuralEquivalence(mismatchedTx));
}
void
testHelperEmptyAndMissing(FeatureBitset features)
{
testcase("helpers on non-jsontx STTx");
using namespace jtx;
Env env{*this, features};
Account const alice{"alice"};
env.fund(XRP(1000), alice);
env.close();
// A noop signed classically carries no sfJsonTxBody.
auto const jt = env.jt(noop(alice));
BEAST_EXPECT(!jsonTx::hasBody(*jt.stx));
BEAST_EXPECT(jsonTx::body(*jt.stx).empty());
BEAST_EXPECT(jsonTx::bodyHash(*jt.stx) == uint256{});
}
void
testWithFeats(FeatureBitset features)
{
testEnabledGate(features);
testBasicRoundtrip(features);
testMissingParams(features);
testInvalidJson(features);
testBadSignature(features);
testSignatureOverDifferentBytesFails(features);
testWrongSigningPubKey(features);
testHelperDirectly(features);
testHelperEmptyAndMissing(features);
}
public:
void
run() override
{
using namespace jtx;
auto const sa = supported_amendments();
testWithFeats(sa);
}
};
BEAST_DEFINE_TESTSUITE(JsonTx, app, ripple);
} // namespace test
} // namespace ripple

File diff suppressed because it is too large Load Diff

View File

@@ -0,0 +1,351 @@
//------------------------------------------------------------------------------
/*
This file is part of rippled: https://github.com/ripple/rippled
Copyright (c) 2024 Ripple Labs Inc.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
#include <test/jtx.h>
#include <xrpld/core/Job.h>
#include <xrpld/core/JobQueue.h>
#include <xrpld/net/RPCSub.h>
#include <xrpl/json/json_value.h>
#include <boost/asio.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <atomic>
#include <chrono>
#include <memory>
#include <string>
#include <thread>
namespace ripple {
namespace test {
// Minimal HTTP endpoint that counts received webhook POSTs and replies
// with a configurable status. Responses are EOF-delimited (no
// Content-Length) and the socket is closed right after writing — the
// exact shape that triggered the original handleData EOF-completion
// leak. So these tests exercise RPCSub flow control AND the HTTPClient
// EOF fix end to end: if either regressed, delivery would stall and the
// expected count would never be reached within the timeout.
class MockWebhookEndpoint
{
boost::asio::io_service ios_;
std::unique_ptr<boost::asio::io_service::work> work_;
boost::asio::ip::tcp::acceptor acceptor_;
std::thread thread_;
unsigned short port_;
std::atomic<int> received_{0};
std::atomic<int> status_{200};
std::atomic<int> delayMs_{0};
public:
MockWebhookEndpoint()
: work_(std::make_unique<boost::asio::io_service::work>(ios_))
, acceptor_(
ios_,
boost::asio::ip::tcp::endpoint(
boost::asio::ip::address::from_string("127.0.0.1"),
0))
{
port_ = acceptor_.local_endpoint().port();
accept();
thread_ = std::thread([this] { ios_.run(); });
}
~MockWebhookEndpoint()
{
work_.reset();
boost::system::error_code ec;
acceptor_.close(ec);
ios_.stop();
if (thread_.joinable())
thread_.join();
}
unsigned short
port() const
{
return port_;
}
int
received() const
{
return received_;
}
void
setStatus(int s)
{
status_ = s;
}
// Delay each reply so delivery is deterministically slower than the
// microsecond-fast enqueue loop — keeps the deque full for the
// queue-cap drop test regardless of scheduling.
void
setResponseDelay(int ms)
{
delayMs_ = ms;
}
private:
void
accept()
{
auto sock = std::make_shared<boost::asio::ip::tcp::socket>(ios_);
acceptor_.async_accept(*sock, [this, sock](auto ec) {
if (ec)
return;
handle(sock);
accept();
});
}
void
handle(std::shared_ptr<boost::asio::ip::tcp::socket> sock)
{
auto buf = std::make_shared<boost::asio::streambuf>();
boost::asio::async_read_until(
*sock, *buf, "\r\n\r\n", [this, sock, buf](auto ec, std::size_t) {
if (ec)
return;
++received_;
auto const delay = delayMs_.load();
if (delay > 0)
{
auto timer =
std::make_shared<boost::asio::steady_timer>(ios_);
timer->expires_from_now(std::chrono::milliseconds(delay));
timer->async_wait(
[this, sock, timer](auto) { reply(sock); });
}
else
{
reply(sock);
}
});
}
void
reply(std::shared_ptr<boost::asio::ip::tcp::socket> sock)
{
// EOF-delimited reply: no Content-Length, close after writing.
// This is the realistic failing-webhook shape.
auto resp = std::make_shared<std::string>(
"HTTP/1.0 " + std::to_string(status_.load()) +
" Reply\r\n\r\n{\"result\":{}}");
boost::asio::async_write(
*sock, boost::asio::buffer(*resp), [sock, resp](auto, std::size_t) {
boost::system::error_code ig;
sock->shutdown(boost::asio::ip::tcp::socket::shutdown_both, ig);
sock->close(ig);
});
}
};
//------------------------------------------------------------------------------
class RPCSub_test : public beast::unit_test::suite
{
// Generous ceiling: the instrumented Debug (coverage) build is much
// slower than Release, so timeouts are sized for that, not Release.
template <class Cond>
bool
waitFor(Cond cond, std::chrono::seconds timeout = std::chrono::seconds{30})
{
auto const deadline = std::chrono::steady_clock::now() + timeout;
while (!cond() && std::chrono::steady_clock::now() < deadline)
std::this_thread::sleep_for(std::chrono::milliseconds(10));
return cond();
}
std::shared_ptr<RPCSub>
makeSub(
jtx::Env& env,
MockWebhookEndpoint& ep,
std::size_t maxQueueSize = 16384)
{
return make_RPCSub(
env.app().getOPs(),
env.app().getJobQueue(),
"http://127.0.0.1:" + std::to_string(ep.port()) + "/",
"",
"",
env.app().logs(),
maxQueueSize);
}
// True once no RPCSub sending job is queued or running. sendThread
// captures a raw `this`, so the RPCSub must not be destroyed while a
// job is still in flight — wait on this before letting the sub die.
bool
sendingIdle(jtx::Env& env)
{
return env.app().getJobQueue().getJobCountTotal(jtCLIENT_SUBSCRIBE) ==
0;
}
// Wait for all events to reach the endpoint AND the sending job to
// finish, so the sub can be torn down without racing sendThread.
void
drainAndSettle(jtx::Env& env, MockWebhookEndpoint& ep, int expected)
{
bool const delivered =
waitFor([&] { return ep.received() >= expected; });
bool const idle = waitFor([&] { return sendingIdle(env); });
log << " drainAndSettle: received=" << ep.received() << "/" << expected
<< " idle=" << idle << std::endl;
BEAST_EXPECT(delivered);
BEAST_EXPECT(idle);
}
void
send(std::shared_ptr<RPCSub> const& sub, int n)
{
Json::Value ev(Json::objectValue);
ev["n"] = n;
sub->send(ev, false);
}
void
testDelivery()
{
testcase("Webhook events are delivered");
using namespace jtx;
Env env{*this};
MockWebhookEndpoint ep;
static constexpr int N = 10;
{
auto sub = makeSub(env, ep);
for (int i = 0; i < N; ++i)
send(sub, i);
drainAndSettle(env, ep, N);
}
BEAST_EXPECT(ep.received() == N);
}
void
testErrorsDoNotStall()
{
testcase("Delivery continues when endpoint returns HTTP 500");
// The original bug (xrpld #6341): an endpoint returning errors
// without Content-Length never completed, stalling delivery to
// ALL subscribers. Here every response is a 500 with no
// Content-Length (EOF-delimited) — all N must still arrive.
using namespace jtx;
Env env{*this};
MockWebhookEndpoint ep;
ep.setStatus(500);
static constexpr int N = 10;
{
auto sub = makeSub(env, ep);
for (int i = 0; i < N; ++i)
send(sub, i);
drainAndSettle(env, ep, N);
}
BEAST_EXPECT(ep.received() == N);
}
void
testRestartAfterDrain()
{
testcase("Sending restarts after the queue drains");
// After a batch drains, sendThread clears mSending and returns.
// A later send() must start a fresh sending job; if mSending were
// left set (the #6341 failure mode) the second burst would never
// be delivered.
using namespace jtx;
Env env{*this};
MockWebhookEndpoint ep;
{
auto sub = makeSub(env, ep);
// First burst, then wait for the sending job to fully drain
// and exit (mSending cleared) — deterministically, not via a
// sleep.
for (int i = 0; i < 5; ++i)
send(sub, i);
drainAndSettle(env, ep, 5);
// Second burst must start a fresh sending job.
for (int i = 5; i < 10; ++i)
send(sub, i);
drainAndSettle(env, ep, 10);
}
BEAST_EXPECT(ep.received() == 10);
}
void
testQueueCapDrops()
{
testcase("Events past the queue cap are dropped");
// With a tiny cap, pushing far more events than delivery can keep
// up with forces send() down the drop path: enqueue is microsecond
// -fast while each (delayed) HTTP delivery is a full round-trip, so
// the deque sits at the cap and excess events are dropped. The
// delay makes "delivery slower than enqueue" hold regardless of
// scheduling, so this isn't timing-dependent. We just need some
// delivered (cap works) and some dropped (drop path exercised).
using namespace jtx;
Env env{*this};
MockWebhookEndpoint ep;
ep.setResponseDelay(50);
static constexpr int pushed = 50;
{
auto sub = makeSub(env, ep, /*maxQueueSize*/ 2);
for (int i = 0; i < pushed; ++i)
send(sub, i);
BEAST_EXPECT(waitFor([&] { return sendingIdle(env); }));
}
log << " queue cap: received " << ep.received() << "/" << pushed
<< std::endl;
BEAST_EXPECT(ep.received() > 0);
BEAST_EXPECT(ep.received() < pushed);
}
public:
void
run() override
{
testDelivery();
testErrorsDoNotStall();
testRestartAfterDrain();
testQueueCapDrops();
}
};
BEAST_DEFINE_TESTSUITE(RPCSub, net, ripple);
} // namespace test
} // namespace ripple

View File

@@ -22,7 +22,6 @@
#include <xrpld/core/JobQueue.h>
#include <xrpld/net/InfoSub.h>
#include <boost/asio/io_service.hpp>
namespace ripple {
@@ -39,16 +38,17 @@ protected:
explicit RPCSub(InfoSub::Source& source);
};
// VFALCO Why is the io_service needed?
std::shared_ptr<RPCSub>
make_RPCSub(
InfoSub::Source& source,
boost::asio::io_service& io_service,
JobQueue& jobQueue,
std::string const& strUrl,
std::string const& strUsername,
std::string const& strPassword,
Logs& logs);
Logs& logs,
// Max events buffered before new ones are dropped. Configurable so
// tests can exercise the drop path without queueing the full default.
std::size_t maxQueueSize = 16384);
} // namespace ripple

View File

@@ -122,12 +122,20 @@ public:
mComplete = complete;
mTimeout = timeout;
// Bind a non-owning `this` (not shared_from_this()) into mBuild.
// mBuild is a member, so capturing a shared_ptr to self here would
// form a reference cycle (this -> mBuild -> shared_ptr<this>) that
// never breaks, leaking the object and its socket FD after the
// request completes. mBuild is only ever invoked from
// handleRequest(), which always runs inside an async handler that
// already holds a shared_from_this(), so the object is guaranteed
// alive whenever mBuild fires — a raw `this` is safe.
request(
bSSL,
deqSites,
std::bind(
&HTTPClientImp::makeGet,
shared_from_this(),
this,
strPath,
std::placeholders::_1,
std::placeholders::_2),
@@ -393,8 +401,12 @@ public:
if (boost::regex_match(strHeader, smMatch, reBody)) // we got some body
mBody = smMatch[1];
bool const hasContentLength =
boost::regex_match(strHeader, smMatch, reSize);
mReceivedContentLength = hasContentLength;
std::size_t const responseSize = [&] {
if (boost::regex_match(strHeader, smMatch, reSize))
if (hasContentLength)
return beast::lexicalCast<std::size_t>(
std::string(smMatch[1]), maxResponseSize_);
return maxResponseSize_;
@@ -445,22 +457,24 @@ public:
JLOG(j_.trace()) << "Read error: " << mShutdown.message();
invokeComplete(mShutdown);
return;
}
else
{
if (mShutdown)
{
JLOG(j_.trace()) << "Complete.";
}
else
{
mResponse.commit(bytes_transferred);
std::string strBody{
{std::istreambuf_iterator<char>(&mResponse)},
std::istreambuf_iterator<char>()};
invokeComplete(ecResult, mStatus, mBody + strBody);
}
}
// Either the read completed normally or it ended at EOF. EOF is a
// successful completion for EOF-delimited responses, but it is an
// error when the server promised a Content-Length and closed early.
JLOG(j_.trace()) << "Complete.";
mResponse.commit(bytes_transferred);
std::string strBody{
{std::istreambuf_iterator<char>(&mResponse)},
std::istreambuf_iterator<char>()};
auto completeEc = ecResult;
if (completeEc == boost::asio::error::eof && !mReceivedContentLength)
completeEc.clear();
invokeComplete(completeEc, mStatus, mBody + strBody);
}
// Call cancel the deadline timer and invoke the completion routine.
@@ -516,6 +530,7 @@ private:
boost::asio::streambuf mHeader;
boost::asio::streambuf mResponse;
std::string mBody;
bool mReceivedContentLength = false;
const unsigned short mPort;
std::size_t const maxResponseSize_;
int mStatus;

View File

@@ -1585,6 +1585,10 @@ struct RPCCallImp
// callbackFuncP.
// Receive reply
if (ecResult)
Throw<std::runtime_error>(
"RPC transport error: " + ecResult.message());
if (strData.empty())
Throw<std::runtime_error>(
"no response from server. Please "
@@ -1748,6 +1752,7 @@ rpcClient(
}
{
//@@start blocking-request
boost::asio::io_service isService;
RPCCall::fromNetwork(
isService,
@@ -1771,6 +1776,7 @@ rpcClient(
headers);
isService.run(); // This blocks until there are no more
// outstanding async calls.
//@@end blocking-request
}
if (jvOutput.isMember("result"))
{
@@ -1881,15 +1887,21 @@ fromNetwork(
// Send request
// Number of bytes to try to receive if no
// Content-Length header received
constexpr auto RPC_REPLY_MAX_BYTES = megabytes(256);
// Number of bytes to try to receive if no Content-Length header is
// received. Webhook event deliveries ("event") ignore the response
// body, so a missing Content-Length must not pre-allocate the full
// 256MB RPC reply budget per in-flight delivery (maxInFlight can be
// 32 -> 8GB). Cap those small; genuine RPC replies (CLI) keep the
// large budget.
auto const RPC_REPLY_MAX_BYTES =
(strMethod == "event") ? megabytes(1) : megabytes(256);
using namespace std::chrono_literals;
// auto constexpr RPC_NOTIFY = 10min; // Wietse: lolwut 10 minutes for one
// HTTP call?
auto constexpr RPC_NOTIFY = 30s;
//@@start async-request
HTTPClient::request(
bSSL,
io_service,
@@ -1914,6 +1926,7 @@ fromNetwork(
std::placeholders::_3,
j),
j);
//@@end async-request
}
} // namespace RPCCall

View File

@@ -24,29 +24,30 @@
#include <xrpl/basics/contract.h>
#include <xrpl/json/to_string.h>
#include <deque>
#include <memory>
namespace ripple {
// Subscription object for JSON-RPC
class RPCSubImp : public RPCSub
class RPCSubImp : public RPCSub, public std::enable_shared_from_this<RPCSubImp>
{
public:
RPCSubImp(
InfoSub::Source& source,
boost::asio::io_service& io_service,
JobQueue& jobQueue,
std::string const& strUrl,
std::string const& strUsername,
std::string const& strPassword,
Logs& logs)
Logs& logs,
std::size_t maxQueueSize)
: RPCSub(source)
, m_io_service(io_service)
, m_jobQueue(jobQueue)
, mUrl(strUrl)
, mSSL(false)
, mUsername(strUsername)
, mPassword(strPassword)
, mSending(false)
, maxQueueSize_(maxQueueSize)
, j_(logs.journal("RPCSub"))
, logs_(logs)
{
@@ -78,14 +79,26 @@ public:
{
std::lock_guard sl(mLock);
// Wietse: we're not going to limit this, this is admin-port only, scale
// accordingly Dropping events just like this results in inconsistent
// data on the receiving end if (mDeque.size() >= eventQueueMax)
// {
// // Drop the previous event.
// JLOG(j_.warn()) << "RPCCall::fromNetwork drop";
// mDeque.pop_back();
// }
if (mDeque.size() >= maxQueueSize_)
{
// Always advance mSeq so consumers can detect the gap, but
// rate-limit the log: a hopelessly behind endpoint drops on
// every send() and would otherwise flood the log. Warn on
// the first drop of a run and then once per dropLogInterval.
if (mDropped++ % dropLogInterval == 0)
{
JLOG(j_.warn())
<< "RPCCall::fromNetwork drop: queue full ("
<< mDeque.size() << "), seq=" << mSeq
<< ", endpoint=" << mIp << ", dropped=" << mDropped;
}
++mSeq;
return;
}
// Endpoint caught up enough to accept again; reset so the next
// overflow burst logs its first drop immediately.
mDropped = 0;
auto jm = broadcast ? j_.debug() : j_.info();
JLOG(jm) << "RPCCall::fromNetwork push: " << jvObj;
@@ -97,10 +110,7 @@ public:
// Start a sending thread.
JLOG(j_.info()) << "RPCCall::fromNetwork start";
mSending = m_jobQueue.addJob(
jtCLIENT_SUBSCRIBE, "RPCSub::sendThread", [this]() {
sendThread();
});
startSendingJob();
}
}
@@ -121,48 +131,66 @@ public:
}
private:
// XXX Could probably create a bunch of send jobs in a single get of the
// lock.
// Maximum concurrent HTTP deliveries per batch. Bounds file
// descriptor usage while still allowing parallel delivery to
// capable endpoints. With a 1024 FD process limit shared across
// peers, clients, and the node store, 32 per subscriber is a
// meaningful but survivable chunk even with multiple subscribers.
static constexpr int maxInFlight = 32;
// Log one drop warning per this many drops while the queue stays
// full, to avoid flooding the log on a persistently behind endpoint.
static constexpr std::size_t dropLogInterval = 1000;
// Schedule a sending job. Must be called under mLock. The job holds a
// weak_ptr and re-locks it on entry, so the RPCSub is kept alive for
// the duration of the batch even if it is unsubscribed (and would
// otherwise be destroyed) concurrently — sendThread dereferences this
// only via that strong ref. mDeque events are delivered until the sub
// is gone, after which weak.lock() fails and the job is a no-op.
void
startSendingJob()
{
std::weak_ptr<RPCSubImp> weak = weak_from_this();
mSending = m_jobQueue.addJob(
jtCLIENT_SUBSCRIBE, "RPCSub::sendThread", [weak]() {
if (auto self = weak.lock())
self->sendThread();
});
}
void
sendThread()
{
Json::Value jvEvent;
bool bSend;
// Process exactly ONE batch per job, then re-queue if more events
// remain, rather than draining the whole backlog in a single job.
// A local io_service's .run() blocks this worker thread for the
// batch (up to the per-request timeout), so re-queueing between
// batches keeps one slow/hung subscriber from monopolising a
// job-queue worker and starving consensus/ledger/RPC work.
//
// mSending must be cleared under the lock on every non-requeue
// exit path; if it ever stays set without a job in flight, send()
// sees mSending == true and never restarts us, stalling the queue
// forever — the original bug (xrpld issue #6341).
boost::asio::io_service io_service;
int dispatched = 0;
do
try
{
{
// Obtain the lock to manipulate the queue and change sending.
std::lock_guard sl(mLock);
if (mDeque.empty())
{
mSending = false;
bSend = false;
}
else
while (!mDeque.empty() && dispatched < maxInFlight)
{
auto const [seq, env] = mDeque.front();
mDeque.pop_front();
jvEvent = env;
Json::Value jvEvent = env;
jvEvent["seq"] = seq;
bSend = true;
}
}
// Send outside of the lock.
if (bSend)
{
// XXX Might not need this in a try.
try
{
JLOG(j_.info()) << "RPCCall::fromNetwork: " << mIp;
RPCCall::fromNetwork(
m_io_service,
io_service,
mIp,
mPort,
mUsername,
@@ -173,21 +201,51 @@ private:
mSSL,
true,
logs_);
}
catch (const std::exception& e)
{
JLOG(j_.info())
<< "RPCCall::fromNetwork exception: " << e.what();
++dispatched;
}
}
} while (bSend);
// dispatched is always > 0 here (send() only starts a job
// after enqueuing, and the re-queue below only fires with a
// non-empty deque), but guard anyway so an empty batch can't
// log/spin — it falls straight through to clear mSending.
if (dispatched > 0)
{
JLOG(j_.info()) << "RPCCall::fromNetwork: " << mIp
<< " dispatching " << dispatched << " events";
io_service.run();
}
}
catch (std::exception const& e)
{
// Bail rather than re-queue: a persistently failing endpoint
// would otherwise spin the job queue. mSending is reset so the
// next send() restarts delivery.
JLOG(j_.warn()) << "RPCSub::sendThread exception: " << e.what();
std::lock_guard sl(mLock);
mSending = false;
return;
}
catch (...)
{
JLOG(j_.warn()) << "RPCSub::sendThread unknown exception";
std::lock_guard sl(mLock);
mSending = false;
return;
}
// Batch complete: re-queue for the next one (mSending stays set)
// or clear mSending if the queue drained — both under the lock to
// avoid a lost-wakeup race with send().
std::lock_guard sl(mLock);
if (mDeque.empty())
mSending = false;
else
startSendingJob();
}
private:
// Wietse: we're not going to limit this, this is admin-port only, scale
// accordingly enum { eventQueueMax = 32 };
boost::asio::io_service& m_io_service;
JobQueue& m_jobQueue;
std::string mUrl;
@@ -200,8 +258,15 @@ private:
int mSeq; // Next id to allocate.
std::size_t mDropped = 0; // Consecutive drops while queue is full.
bool mSending; // Sending threead is active.
// Maximum queued events before dropping. The default (16384) is a
// ~10-minute buffer at 100+ events/ledger; a hopelessly behind
// endpoint trips it and consumers detect the gap via the seq field.
std::size_t const maxQueueSize_;
std::deque<std::pair<int, Json::Value>> mDeque;
beast::Journal const j_;
@@ -217,21 +282,21 @@ RPCSub::RPCSub(InfoSub::Source& source) : InfoSub(source, Consumer())
std::shared_ptr<RPCSub>
make_RPCSub(
InfoSub::Source& source,
boost::asio::io_service& io_service,
JobQueue& jobQueue,
std::string const& strUrl,
std::string const& strUsername,
std::string const& strPassword,
Logs& logs)
Logs& logs,
std::size_t maxQueueSize)
{
return std::make_shared<RPCSubImp>(
std::ref(source),
std::ref(io_service),
std::ref(jobQueue),
strUrl,
strUsername,
strPassword,
logs);
logs,
maxQueueSize);
}
} // namespace ripple

View File

@@ -170,10 +170,6 @@ Handler const handlerArray[]{
{"simulate", byRef(&doSimulate), Role::USER, NEEDS_CURRENT_LEDGER},
{"stop", byRef(&doStop), Role::ADMIN, NO_CONDITION},
{"submit", byRef(&doSubmit), Role::USER, NEEDS_CURRENT_LEDGER},
{"submit_json_tx",
byRef(&doSubmitJsonTx),
Role::USER,
NEEDS_CURRENT_LEDGER},
{"submit_multisigned",
byRef(&doSubmitMultiSigned),
Role::USER,

View File

@@ -147,8 +147,6 @@ doInject(RPC::JsonContext&);
Json::Value
doSubmit(RPC::JsonContext&);
Json::Value
doSubmitJsonTx(RPC::JsonContext&);
Json::Value
doSubmitMultiSigned(RPC::JsonContext&);
Json::Value
doSubscribe(RPC::JsonContext&);

View File

@@ -1,239 +0,0 @@
//------------------------------------------------------------------------------
/*
This file is part of rippled: https://github.com/ripple/rippled
Copyright (c) 2012-2014 Ripple Labs Inc.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
// submit_json_tx -- prototype json-tx submission path.
//
// Request:
// {
// "tx_json_str": "<exact ASCII bytes the client signed>",
// "signature": "<hex-encoded signature over tx_json_str>"
// }
//
// Pipeline:
// 1. Parse tx_json_str as JSON.
// 2. Verify `signature` over the UTF-8 bytes of tx_json_str using
// SigningPubKey from the parsed object -- NOT the classical
// signing payload.
// 3. Build an STTx from the parsed object + signature.
// 4. forceValidity(SigGoodOnly) so downstream code skips the
// classical sig check (which would fail -- TxnSignature is over
// the ASCII JSON, not over the binary signing payload).
// 5. Route through the normal Transaction / processTransaction flow.
//
// NB: for this to survive peer relay / re-validation a consensus-level
// change is required: a new `sfJsonTxBody` Blob field that carries
// tx_json_str on chain, plus an amendment that routes STTx::checkSign
// through the ASCII bytes when the field is present. This handler is
// the ingress-side prototype only.
#include <xrpld/app/ledger/LedgerMaster.h>
#include <xrpld/app/misc/HashRouter.h>
#include <xrpld/app/misc/Transaction.h>
#include <xrpld/app/tx/apply.h>
#include <xrpld/rpc/Context.h>
#include <xrpld/rpc/detail/RPCHelpers.h>
#include <xrpl/json/json_reader.h>
#include <xrpl/protocol/ErrorCodes.h>
#include <xrpl/protocol/Feature.h>
#include <xrpl/protocol/PublicKey.h>
#include <xrpl/protocol/RPCErr.h>
#include <xrpl/protocol/STParsedJSON.h>
#include <xrpl/protocol/STTx.h>
#include <xrpl/protocol/jss.h>
#include <xrpl/resource/Fees.h>
namespace ripple {
namespace {
NetworkOPs::FailHard
getFailHard(RPC::JsonContext const& context)
{
return NetworkOPs::doFailHard(
context.params.isMember("fail_hard") &&
context.params["fail_hard"].asBool());
}
Json::Value
invalidTx(std::string const& reason)
{
Json::Value jv;
jv[jss::error] = "invalidTransaction";
jv[jss::error_exception] = reason;
return jv;
}
} // namespace
Json::Value
doSubmitJsonTx(RPC::JsonContext& context)
{
context.loadType = Resource::feeMediumBurdenRPC;
// Gate the whole RPC on the amendment. Without it, accepting a
// json-tx submission would just queue a tx that every peer node
// rejects as soon as it re-validates the signature classically.
if (!context.ledgerMaster.getCurrentLedger()->rules().enabled(
featureJsonTx))
return rpcError(rpcNOT_ENABLED);
if (!context.params.isMember("tx_json_str") ||
!context.params.isMember("signature"))
return rpcError(rpcINVALID_PARAMS);
std::string const txJsonStr = context.params["tx_json_str"].asString();
if (txJsonStr.empty())
return rpcError(rpcINVALID_PARAMS);
auto sigBlob = strUnHex(context.params["signature"].asString());
if (!sigBlob || sigBlob->empty())
return rpcError(rpcINVALID_PARAMS);
// 1. Parse the ASCII JSON.
Json::Value parsed;
Json::Reader reader;
if (!reader.parse(txJsonStr, parsed) || !parsed.isObject())
return invalidTx("tx_json_str is not a valid JSON object");
// 2. Verify the signature over tx_json_str using SigningPubKey.
if (!parsed.isMember(jss::SigningPubKey))
return invalidTx("missing SigningPubKey");
auto pkBlob = strUnHex(parsed[jss::SigningPubKey].asString());
if (!pkBlob || !publicKeyType(makeSlice(*pkBlob)))
return invalidTx("invalid SigningPubKey");
PublicKey const pk(makeSlice(*pkBlob));
Slice const msg(
reinterpret_cast<unsigned char const*>(txJsonStr.data()),
txJsonStr.size());
if (!verify(pk, msg, makeSlice(*sigBlob)))
return invalidTx("signature over tx_json_str failed verification");
// 3. Build the STTx from parsed + signature + JsonTxBody carrying
// the exact ASCII bytes the client signed. TxnSignature is the
// ASCII-level sig; the classical sig check must be skipped
// (see step 4).
Json::Value stTxJson = parsed;
stTxJson[jss::TxnSignature] = strHex(*sigBlob);
stTxJson[sfJsonTxBody.jsonName] = strHex(txJsonStr);
STParsedJSONObject parsedObj("tx_json", stTxJson);
if (!parsedObj.object)
return invalidTx(
parsedObj.error.isMember(jss::error_message)
? parsedObj.error[jss::error_message].asString()
: "failed to parse tx_json_str into STObject");
std::shared_ptr<STTx const> stTx;
try
{
stTx = std::make_shared<STTx const>(std::move(*parsedObj.object));
}
catch (std::exception& e)
{
return invalidTx(e.what());
}
// 4. Bypass the classical TxnSignature check -- we already verified
// the signature over the ASCII JSON above.
forceValidity(
context.app.getHashRouter(),
stTx->getTransactionID(),
Validity::SigGoodOnly);
auto [validity, reason] = checkValidity(
context.app.getHashRouter(),
*stTx,
context.ledgerMaster.getCurrentLedger()->rules(),
context.app.config());
if (validity != Validity::Valid)
return invalidTx("fails local checks: " + reason);
std::string buildReason;
auto transaction =
std::make_shared<Transaction>(stTx, buildReason, context.app);
if (transaction->getStatus() != NEW)
return invalidTx("fails local checks: " + buildReason);
try
{
auto const failType = getFailHard(context);
context.netOps.processTransaction(
transaction, isUnlimited(context.role), true, failType);
}
catch (std::exception& e)
{
Json::Value jv;
jv[jss::error] = "internalSubmit";
jv[jss::error_exception] = e.what();
return jv;
}
Json::Value jvResult;
try
{
jvResult[jss::tx_json] = transaction->getJson(JsonOptions::none);
jvResult[jss::tx_blob] =
strHex(transaction->getSTransaction()->getSerializer().peekData());
jvResult["tx_json_str"] = txJsonStr;
if (temUNCERTAIN != transaction->getResult())
{
std::string sToken, sHuman;
transResultInfo(transaction->getResult(), sToken, sHuman);
jvResult[jss::engine_result] = sToken;
jvResult[jss::engine_result_code] = transaction->getResult();
jvResult[jss::engine_result_message] = sHuman;
auto const submitResult = transaction->getSubmitResult();
jvResult[jss::accepted] = submitResult.any();
jvResult[jss::applied] = submitResult.applied;
jvResult[jss::broadcast] = submitResult.broadcast;
jvResult[jss::queued] = submitResult.queued;
jvResult[jss::kept] = submitResult.kept;
if (auto currentLedgerState = transaction->getCurrentLedgerState())
{
jvResult[jss::account_sequence_next] =
safe_cast<Json::Value::UInt>(
currentLedgerState->accountSeqNext);
jvResult[jss::account_sequence_available] =
safe_cast<Json::Value::UInt>(
currentLedgerState->accountSeqAvail);
jvResult[jss::open_ledger_cost] =
to_string(currentLedgerState->minFeeRequired);
jvResult[jss::validated_ledger_index] =
safe_cast<Json::Value::UInt>(
currentLedgerState->validatedLedger);
}
}
}
catch (std::exception& e)
{
jvResult[jss::error] = "internalJson";
jvResult[jss::error_exception] = e.what();
}
return jvResult;
}
} // namespace ripple

View File

@@ -76,7 +76,6 @@ doSubscribe(RPC::JsonContext& context)
{
auto rspSub = make_RPCSub(
context.app.getOPs(),
context.app.getIOService(),
context.app.getJobQueue(),
strUrl,
strUsername,