comp AP gateway: publish, (un)subscribe/(un)follow, public subscription/following/followers: this patch implements those major features: - `publish` is implemented on virtual pubsub service, thus XMPP entities can now publish to AP using this service - replies to XMPP items are managed - `inReplyTo` is filled when converting XMPP items to AP objects - `follow` and `unfollow` (actually an `undo` activity) are implemented and mapped to XMPP's (un)subscribe. On subscription, AP actor's `outbox` collection is converted to XMPP and put in cache. Subscriptions are always public. - `following` and `followers` collections are mapped to XMPP's Public Pubsub Subscription (which should be XEP-0465, but the XEP is not yet published at the time of commit), in both directions. - new helper methods to check if an URL is local and to get JID from actor ID doc will follow to explain behaviour rel 365

ARG REVISION
FROM libervia/backend:${REVISION:-dev}

LABEL maintainer="Goffi <tmp_dockerfiles@goffi.org>"

ARG REVISION
ARG DEBIAN_FRONTEND=noninteractive

USER root

RUN apt-get install -y --no-install-recommends yarnpkg
WORKDIR /home/libervia
USER libervia
RUN cd /src && hg clone https://repos.goffi.org/libervia-web -u "${REVISION:-@}" && \
    ~/libervia_env/bin/pip install -e libervia-web

RUN ./entrypoint.sh \
    # we build here to avoid re-downloading node modules or other browser
    # dependencies on each run
    libervia-web fg -- --build-only && \
    libervia-backend stop

EXPOSE 8080 8443

ENTRYPOINT ["libervia-web"]
CMD ["fg"]