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These should generally be safe to just ignore, which should be the
default behavior of Expat and LuaExpat
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Fixes that a multi-line string ended up "like\
\9this" instead of "like\nthis" as can be demonstrated by somehow
initiating a connection to a HTTP server.
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A boolean false should blow up.
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Yes. This is as bad as it sounds. CVE pending.
In Prosody itself, this only affects mod_websocket, which uses util.xml
to parse the <open/> frame, thus allowing unauthenticated remote DoS
using Billion Laughs. However, third-party modules using util.xml may
also be affected by this.
This commit installs handlers which disallow the use of doctype
declarations and processing instructions without any escape hatch. It,
by default, also introduces such a handler for comments, however, there
is a way to enable comments nontheless.
This is because util.xml is used to parse human-facing data, where
comments are generally a desirable feature, and also because comments
are generally harmless.
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Previously this would end up passing the "max" directly to the
underlying storage.
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This method is a bit complex so good to have some test coverage
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Allows reuse of repetitive definitions in schemas.
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The other invocations use it that way, and the only listener in trunk
which uses it (in mod_presence) expects it that way.
Passing the username of the JID from the removed entry causes incorrect
unavailable presence stanzas to be sent, allegedly kicking people off
MUCs.
Fixes #1121.
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There was an off-by-one in the modulo calculation. Switching to a plain
old array-table makes the apparent size of the queue wrong, but since
some of the queue may not be available this is likely for the best.
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Meant to be used in mod_smacks for XEP-0198
Meant to have a larger virtual size than actual number of items stored,
on the theory that in most cases, the excess will be acked before needed
for a resumption event.
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Amazing how string.format behaves differently under each Lua version
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The more tests I made, the more Lua 5.1 quirks I discovered.
Tests generated using a tool plus some touch-up.
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Ie. log("debug", "%d", "\1\2\3") should not result in garbage.
Also optimizing for the common case of ASCII string passed to %s and
early returns everywhere.
Returning nil from a gsub callback keeps the original substring.
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Should prevent invalid UTF-8 from making it into the logs, which can
cause trouble with terminals or log viewers or other tools, such as when
grep determines that log files are binary.
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Including the payload of the stanza that caused the error is optional
and we're generally not doing it anywhere else.
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The numeric error codes seems to have been removed from the examples in
XEP-0045 version 1.24, and were deprecated even by RFC 3920 in 2004,
only allowed for backwards compatibility.
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Running woken runners in the next iteration of the event loop prevents
unexpected recursion, unexpected tracebacks, and is generally more
predictable.
The pattern is borrowed from util.promise, where we're now doing the same.
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No scheduler set by default, so it will error (we plan to initialize it in
util.startup).
We wanted to avoid a hard dependency on util.timer (which in turn depends on
network backends, etc.), and we didn't add timer.sleep() because we didn't
want to add a hard dependency on util.async for things that don't need it.
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Could not reproduce locally but it complained in CI that
> spec/util_promise_spec.lua:676: Cannot spy on type 'nil', only on functions or callable elements
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Down the rabbit hole we go...
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Assumes that most number fields are integers, as most numeric types
listed in XEP-0122 are, as are all such fields in Prosody as of this.
Otherwise %g produces something like 1.1259e+15
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So they're separate from the datetime tests, and any future validation
tests
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Makes it symmetric with parsing.
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Makes more sense than coercing to a string, which would always be
truthy.
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Clients would generally be using the "max" symbol instead of discovering
this, but this also gets us validation and earlier rejection of out of
bounds values.
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Disable persistence instead if no items should be persisted.
XEP-0060 is not entirely clear on what either of those option really
mean.
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Default left as 'never' in mod_pubsub to preserve the previous behavior.
Unclear if this is desirable, but can always be changed later.
In mod_pep this allows turning off the automatic resending of most
recent item.
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Behaviour follows the same logic as string.sub (so yes, 1-indexed).
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Hopefully this will eventually be upgraded to RSM, which is why the
argument is called 'resultspec' and is a table.
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Storage drivers may issue their own IDs tho none of the included ones do
this atm, but the 3rd party module mod_storage_xmlarchive has its
special format.
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Also special thanks to timeless, for wordlessly reminding me to check
for typos.
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XEP-0060 says that this the way to indicate that 'persistent-items' is
unsupported, but doesn't explicitly say if it being disabled in the node
configuration also counts as unsupported.
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When set to 'false' there is no need for a persistence interface at all,
since items are not persisted after being broadcast.
Had started wondering if maybe the behavior was wrong, after reading
parts of XEP-0060 that pointed in that direction.
Some discussion of this can be found in logs of
xmpp:xsf@muc.xmpp.org?join from around 2021-07-20
Thanks to Ralph for confirming.
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Since nodes were always persistent according to the XEP-0060 definition.
Whether data is stored in memory or on disk was not what this setting
was meant for.
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