This PR adds 2 `dendrite-demo` main's, each designed expressly to serve
a Hidden Service/Overlay network.
The first, `dendrite-demo-i2p` add self-configuration for use of
dendrite as an I2P hidden service(eepsite) and to connect to I2P
services(federate) as an I2P client. It further disables the `dendrite`
server from communicating with non-anonymous servers by
federation(because I2P does not canonically have the ability to exit, we
rely on donors for exit traffic), and enables the use of self-signed TLS
certificates([because I2P services are self-authenticating but TLS is
still required for other aspects of the system to work
reliably](https://tor.stackexchange.com/questions/13887/registering-onion-with-certificate-authority)).
This demo turns the system into an "pseudonymous" homeserver which
people can connect to using an I2P-enabled Matrix client(I like `cinny`
and it's what I tested with).
The second, `dendrite-demo-tor` adds self-configuration for the use of
dendrite as an Onion service and to connect to other onion services and
non-anonymous web sites using Tor to obfuscate it's physical location
and providing, optionally, pseudonymity. It also enables the use of
self-signed TLS certificates, for the same reason as with I2P, because
onion services aren't typically eligible for TLS certificates. It has
also been tested with `cinny`.
These services are both pseudonymous like myself, not anonymous. I will
be meeting members of the element team at the CCC assembly shortly to
discuss contributing under my pseudonym.
As none of the other `dendrite-demo` have unit tests I did not add them
to these checkins.
* [*] I have added Go unit tests or [Complement integration
tests](https://github.com/matrix-org/complement) for this PR _or_ I have
justified why this PR doesn't need tests
---------
Co-authored-by: eyedeekay <idk@mulder>
Co-authored-by: Till Faelligen <2353100+S7evinK@users.noreply.github.com>
The internal NATS instance is definitely convenient but it does have one
problem: its lifecycle is tied to the Dendrite process. That means if
Dendrite panics or OOMs, it takes out NATS with it. I suspect this is
sometimes contributing to what people see with stuck streams, as some
operations or state might not be written to disk fully before it gets
interrupted.
Using `SyncAlways` means that NATS will effectively use `O_SYNC` and
block writes on flushes, which should improve resiliency against this
kind of failure considerably. It might affect performance a little but
shouldn't be significant.
Also updates NATS to 2.10.20 as there have been all sorts of fixes since
2.10.7, including better `SyncAlways` handling.
Signed-off-by: Neil Alexander <git@neilalexander.dev>
---------
Signed-off-by: Neil Alexander <git@neilalexander.dev>
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
Bumps [golang.org/x/image](https://github.com/golang/image) from 0.10.0
to 0.18.0.
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Fixes#2504
A few issues with the previous iteration:
- We never returned `inaccessible_children`, which (if I read the code
correctly), made Synapse raise an error and thus not returning the
requested rooms
- For restricted rooms, we didn't return the list of allowed rooms
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Fixes https://github.com/matrix-org/dendrite/issues/3240 and potentially
a root cause for state resets.
While testing, I've had added some more debug logging:
```
time="2023-12-16T18:13:11.319458084Z" level=warning msg="already processed event" event_id="$qFYMl_F2vb1N0yxmvlFAMhqhGhLKq4kA-o_YCQKH7tQ" kind=KindNew times=2
time="2023-12-16T18:13:14.537389126Z" level=warning msg="already processed event" event_id="$EU-LTsKErT6Mt1k12-p_3xOHfiLaK6gtwVDlZ35lSuo" kind=KindNew times=5
time="2023-12-16T18:13:16.789551206Z" level=warning msg="already processed event" event_id="$dIPuAfTL5x0VyG873LKPslQeljCSxFT1WKxUtjIMUGE" kind=KindNew times=5
time="2023-12-16T18:13:17.383838767Z" level=warning msg="already processed event" event_id="$7noSZiCkzerpkz_UBO3iatpRnaOiPx-3IXc0GPDQVGE" kind=KindNew times=2
time="2023-12-16T18:13:22.091946597Z" level=warning msg="already processed event" event_id="$3Lvo3Wbi2ol9-nNbQ93N-E2MuGQCJZo5397KkFH-W6E" kind=KindNew times=1
time="2023-12-16T18:13:23.026417446Z" level=warning msg="already processed event" event_id="$lj1xS46zsLBCChhKOLJEG-bu7z-_pq9i_Y2DUIjzGy4" kind=KindNew times=4
```
So we did receive the same event over and over again. Given they are
`KindNew`, we don't short circuit if we already processed them, which
potentially caused the state to be calculated with a now wrong state
snapshot.
Also fixes the back pressure metric. We now correctly increment the
counter once we sent the message to NATS and decrement it once we
actually processed an event.
Bumps [golang.org/x/image](https://github.com/golang/image) from 0.5.0
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In a [previous PR](https://github.com/matrix-org/dendrite/pull/3181) I
accidentally left GMSL on a dev branch, this PR fixes it by bringing it
back to the main branch of GMSL
Signed-off-by: `Sam Wedgwood <sam@wedgwood.dev>`
Fixes include:
- Translating state keys that contain user IDs to their respective room
keys for both querying and sending state events
- **NOTE**: there may be design discussion needed on what should happen
when sender keys cannot be found for users
- A simple fix for kicking guests from rooms properly
- Logic for boundary history visibilities was slightly off (I'm
surprised this only manifested in pseudo ID room versions)
Signed-off-by: `Sam Wedgwood <sam@wedgwood.dev>`
This PR adds a config key `room_server.default_config_key` to set the
default room version for the room server.
Signed-off-by: `Sam Wedgwood <sam@wedgwood.dev>`
There are cases where a dendrite instance is unaware of a pseudo ID for
a user, the user is not a member of that room. To represent this case,
we currently use the 'zero' value, which is often not checked and so
causes errors later down the line. To make this case more explict, and
to be consistent with `QueryUserIDForSender`, this PR changes this to
use a pointer (and `nil` to mean no sender ID).
Signed-off-by: `Sam Wedgwood <sam@wedgwood.dev>`