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* net.server_epoll: Skip reset of read timeout when not readingKim Alvefur2021-07-171-1/+2
| | | | Should avoid rare but needless timer interactions
* net.server_epoll: Reduce timer churn during TLS handshakeKim Alvefur2021-07-171-1/+1
| | | | | Instead of removing and readding the timer, keep it and adjust it instead. Should reduce garbage production a bit.
* net.server_epoll: Use only fatal "write" timeout during TLS negotiationKim Alvefur2021-07-161-3/+3
| | | | | | | Only real difference between the read and write timeouts is that the former has a callback that allows the higher levels to keep the connection alive, while hitting the later is immediately fatal. We want the later behavior for TLS negotiation.
* net.server_epoll: Optimize concatenation of exactly 2 buffer chunksKim Alvefur2021-07-161-1/+3
| | | | | | Saves a function call. I forget if I measured this kind of thing but IIRC infix concatenation is faster than a function call up to some number of items, but let's stop at 2 here.
* net.server_epoll: Avoid allocating a buffer table for single writesKim Alvefur2021-07-161-11/+20
| | | | | | | writebuffer is now string | { string } Saves the allocation of a buffer table until the second write, which could be rare, especially with opportunistic writes.
* net.server_epoll: Optionally let go of buffersKim Alvefur2021-07-161-5/+17
| | | | | Reusing an already existing buffer table would reduce garbage, but keeping it while idle is a waste.
* net.server_epoll: Propagate returns from opportunistic writesKim Alvefur2021-07-161-3/+4
| | | | | So that if a write ends up writing directly to the socket, it gets the actual return value
* net.server_epoll: Set minimum wait time to 1ms, matching epollKim Alvefur2021-07-151-1/+1
| | | | | | | | | | A timeout value less than 0.001 gets turned into zero on the C side, so epoll_wait() returns instantly and essentially busy-loops up to 1ms, e.g. when a timer event ends up scheduled (0, 0.001)ms into the future. Unsure if this has much effect in practice, but it may waste a small amount of CPU time. How much would depend on how often this ends up happening and how fast the CPU gets trough main loop iterations.
* prosodyctl: Add a note about checking the order of listed commandsKim Alvefur2021-07-151-1/+1
| | | | Should Plugin really be first? What order makes the most sense?
* prosodyctl: Add cert to command listingKim Alvefur2021-07-151-1/+3
| | | | | This hides a whole bunch of subcommands tho, maybe those should be explicitly listed?
* prosodyctl: Add 'shell' to command listingKim Alvefur2021-07-151-1/+2
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* prosodyctl: Add 'check' to command listing (fixes #1622)Kim Alvefur2021-05-301-0/+10
| | | | | Along with infrastructure for the other commands that live in external modules.
* net.server_epoll: Add setting for disabling the Nagle algorithmKim Alvefur2021-07-141-0/+6
| | | | Nagle increases latency and is the bane of all networking!
* net.server_epoll: Support setting keepalive idle timeKim Alvefur2021-07-141-0/+3
| | | | | | | Activated by setting config.tcp_keepalive to a number, in seconds. Defaults to 2h. Depends on LuaSocket support for this option.
* net.server_epoll: Add way to enable TCP keeplives on all connectionsKim Alvefur2021-07-141-1/+6
| | | | | | In case one wishes to enable this for all connections, not just c2s (not Direct TLS ones, because LuaSec) and s2s. Unclear what use these are, since they kick in after 2 hours of idle time.
* net.server_epoll: Add an (empty) method for setting socket optionsKim Alvefur2021-07-141-0/+6
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* net.server_epoll: Log failures to set socket optionsKim Alvefur2021-07-141-2/+8
| | | | | | | | | Good to know if it fails, especially since the return value doesn't seem to be checked anywhere. Since LuaSec-wrapped sockets don't expose the setoption method, this will likely show when mod_c2s tries to enable keepalives on direct tls connections.
* mod_s2s: Don't close connections on reloadKim Alvefur2021-07-141-0/+1
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* mod_s2s: Close connections attached to a host being deactivatedKim Alvefur2021-07-141-0/+8
| | | | | | Couldn't use those with the host being deactivated. Problem: This kicks in on reload, which isn't needed.
* mod_s2s: Vary log level by remote stream errorKim Alvefur2021-07-141-1/+33
| | | | | | | | | | | | | Increases log level for stream conditions that could indicate a problem on our end, especially programming errors like invalid XML, or the remote server saying that our certificate is invalid, since these should be investigated. Non-issues like closing of idle streams are lowered to debug since it's mostly noise. Other issues left at info are mostly about changes to the remote server, e.g. complete or partial shutdown.
* tools/jabberd14sql2prosody: Tweak wording in commentsKim Alvefur2021-07-131-2/+2
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* tools/xep227toprosody: Tweak wording in commentsKim Alvefur2021-07-131-2/+2
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* mod_dialback: Tweak wording in a commentKim Alvefur2021-07-131-1/+1
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* mod_s2s: Remove connection timeout once it's no longer neededKim Alvefur2021-07-131-1/+12
| | | | | | Reduces the number of left-over timers to handle after many s2s connections were started, leaving only the ones related to incomplete connections.
* net.server_epoll: Call onconnect immediately after TLS handshake completionKim Alvefur2021-07-131-1/+2
| | | | | | Skips a roundtrip through the main loop in case client-first data is available already, if not then :onreadable() will set the appropriate timeout.
* net.server_epoll: Refactor immediate TLS handshake startKim Alvefur2021-07-131-6/+5
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* net.server_epoll: Keep socket registered in epoll trough TLS wrappingKim Alvefur2021-07-131-2/+1
| | | | | There's the theory that the socket isn't the same before/after wrap(), but since epoll operates on FD numbers this shouldn't matter.
* net.server_epoll: Use TLS handshake timeout after initiating handshakeKim Alvefur2021-07-131-1/+3
| | | | The :init() method sets a different timeout than the TLS related methods.
* net.server_epoll: Start TLS handshake immediately on newly accepted connectionsKim Alvefur2021-07-131-0/+1
| | | | | | Since TLS is a client-first protocol there is a chance that the ClientHello message is available already. TLS Fast Open and/or the TCP_DEFER_ACCEPT socket option would increase that chance.
* net.server_epoll: Factor out TLS initialization into a methodKim Alvefur2021-07-131-45/+51
| | | | | | | | | | | So there's :startls(), :inittls() and :tlshandshake() :starttls() prepares for plain -> TLS upgrade and ensures that the (unencrypted) write buffer is drained before proceeding. :inittls() wraps the connection and does things like SNI, DANE etc. :tlshandshake() steps the TLS negotiation forward until it completes
* net.server_epoll: Fix typoKim Alvefur2021-07-131-1/+1
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* mod_s2s: Log debug message on attempted close of an connectionless sessionKim Alvefur2021-07-111-0/+1
| | | | | | This should probably never happen, but probably does anyways. A debug message would show the truth of the matter.
* mod_s2s: Drop level of indentation by inverting a condition and early returnKim Alvefur2021-07-111-59/+61
| | | | | Nicer to get rid of a conditional that covers such a large portion of a pretty big function.
* mod_s2s: Use module API to fire eventsKim Alvefur2021-07-111-9/+8
| | | | | These direct accesses are probably more optimized, but weird when the module API has methods for these things.
* scansion tests: Allow specifying network settings via environment variableKim Alvefur2021-07-111-2/+1
| | | | | | | Allows testing e.g. opportunistic writes or other settings easily in CI or otherwise without editing the config file. make integration-test PROSODY_NETWORK_SETTINGS='{"opportunistic_writes":true}'
* scansion tests: Allow specifying network backend via environment variableKim Alvefur2021-07-111-1/+1
| | | | | | | To make it easier to test select and event without having to edit the config file, e.g. in CI. make integration-test PROSODY_NETWORK_BACKEND=event
* net.server_epoll: Prevent stack overflow of opportunistic writesKim Alvefur2021-07-111-1/+3
| | | | | | | | | | | | | | net.http.files serving a big enough file on a fast enough connection with opportunistic_writes enabled could trigger a stack overflow through repeatedly serving more data that immediately gets sent, draining the buffer and triggering more data to be sent. This also blocked the server on a single task until completion or an error. This change prevents nested opportunistic writes, which should prevent the stack overflow, at the cost of reduced download speed, but this is unlikely to be noticeable outside of Gbit networks. Speed at the cost of blocking other processing is not worth it, especially with the risk of stack overflow.
* mod_http_errors: Set status code 200 from root pageKim Alvefur2021-07-091-0/+1
| | | | It isn't quite an error.
* mod_http_errors: Add a Prosody logo to root pageKim Alvefur2021-07-091-0/+10
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* mod_http_errors: Allow adding icons on error pagesKim Alvefur2021-07-091-1/+1
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* net.http: Send entire HTTP request header as one writeKim Alvefur2021-07-081-5/+3
| | | | | | | | | | | | | | When opportunistic writes are enabled this reduces the number of syscalls and TCP packets sent on the wire. Experiments with TCP Fast Open made this even more obvious. That table trick probably wasn't as efficient. Lua generates bytecode for a table with zero array slots and space for two entries in the hash part, plus code to set [2] and [4]. I didn't verify but I suspect it would have had to resize the table when setting [1] and [3], although probably only once. Concatenating the strings directly in Lua is easier to read and involves no extra table or function call.
* net.server_epoll: Immediately attempt to read from newly accepted connectionsKim Alvefur2021-07-081-1/+1
| | | | | | | | | | | | This may speed up client-first protocols (e.g. XMPP, HTTP and TLS) when the first client data already arrived by the time we accept() it. If LuaSocket supported TCP_DEFER_ACCEPT we could use that to further increase the chance that there's already data to handle. In case no data has arrived, no harm should be done, :onreadable would simply set the read timeout and we'll get back to it once there is something to handle.
* net.server_epoll: Separate handling of new incoming and outgoing connectionsKim Alvefur2021-07-081-2/+6
| | | | | | | | | | | | The :init method is more suited for new outgoing connections, which is why it uses the connect_timeout setting. Depending on whether a newly accepted connection is to a Direct TLS port or not, it should be handled differently, and was already. The :starttls method sets up timeouts on its own, so the one set in :init was not needed. Newly accepted plain TCP connections don't need a write timeout set, a read timeout is enough.
* net.server_epoll: Ensure timeout after closingKim Alvefur2020-10-311-0/+1
| | | | | | This should make sure that if there's data left to be written when closing a connection, there's also a timeout so that it doesn't wait forever.
* core.loggingmanager: Disable pretty printing when not connected to a ttyKim Alvefur2021-07-041-1/+1
| | | | Things can behave unexpectedly when fed ANSI escape codes.
* util.pposix: Bind isatty(3)Kim Alvefur2021-07-042-0/+11
| | | | | Useful for disabling certain behavior, ANSI colors etc when not connected to a terminal.
* util.prosodyctl.check: Normalize away trailing dot in some messages tooKim Alvefur2021-07-041-8/+13
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* util.prosodyctl.check: Normalize potential to form without trailing '.'Kim Alvefur2021-07-041-0/+2
| | | | | | In some cases you might end up with both 'xmpp.example.com' and 'xmpp.example.com.', which are the same thing so no point in doing the same checks twice.
* util.prosodyctl.check: Point out if A/AAAA exists despite disabled IPvXKim Alvefur2021-07-041-0/+10
| | | | | | Clients would try to connect and receive an error or timeout, increasing the time it takes to establish a connection. Probably not what you want. If you really want IPv6 or IPv4 disabled, best remove the A or AAAA record.
* util.prosodyctl.check: Warn if both use_ipv4 and use_ipv6 are set to falseKim Alvefur2021-07-041-0/+6
| | | | Why would you do this?!
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