using sibpath to find web template files relative to source code is functional
when running from source environments, but not especially flexible when running
from bundled built environments. the more 'orthodox' mechanism, pkg_resources,
in theory at least, knows how to find resource files in various environments.
this makes the 'web' directory in allmydata into an actual allmydata.web module
(since pkg_resources looks for files relative to a named module, and that module
must be importable) and uses pkg_resources.resource_filename to find the files
therein.
use of twisted.python.util.sibpath to find files relative to modules doesn't
work when those modules are bundled into a library by py2exe. this provides
an alternative implementation (in allmydata.util.sibpath) which checks for
the existence of the file, and if it is not found, attempts to find it relative
to sys.executable instead.
a recent purge of the start.html code also took away the logic that wrote
'node.url' into the node root. this is required for the tahoe cli tool to
find the node. this puts back a limited fraction of that code, so that the
node writes out a node.url file upon startup.
* rename my_private_dir.cap to root_dir.cap
* move it into the private subdir
* change the cmdline argument "--root-uri=[private]" to "--dir-uri=[root]"
Unfortunately although it passes the unit tests, it doesn't work, because the unit tests and the implementation use the "encode params into URL" technique but the button uses the "encode params into request body" technique.
Hm... I refactored processing of segments in a way that I marked as "XXX HELP
I AM YUCKY", and then I ran out of time for rerefactoring it before I
committed. At least all the tests pass.
* use new decentralized directories everywhere instead of old centralized directories
* provide UI to them through the web server
* provide UI to them through the CLI
* update unit tests to simulate decentralized mutable directories in order to test other components that rely on them
* remove the notion of a "vdrive server" and a client thereof
* remove the notion of a "public vdrive", which was a directory that was centrally published/subscribed automatically by the tahoe node (you can accomplish this manually by making a directory and posting the URL to it on your web site, for example)
* add a notion of "wait_for_numpeers" when you need to publish data to peers, which is how many peers should be attached before you start. The default is 1.
* add __repr__ for filesystem nodes (note: these reprs contain a few bits of the secret key!)
* fix a few bugs where we used to equate "mutable" with "not read-only". Nowadays all directories are mutable, but some might be read-only (to you).
* fix a few bugs where code wasn't aware of the new general-purpose metadata dict the comes with each filesystem edge
* sundry fixes to unit tests to adjust to the new directories, e.g. don't assume that every share on disk belongs to a chk file.
Thanks to robk for pointing out that Nevow will accept a Deferred almost
everywhere. In this case, we just pass a Deferred into ctx.fillSlots(). One
quirk: nevow doesn't evaluate all rows of the table in parallel: using a slow
Deferred in a slot in one row seems to stall the next row until that one has
fired, probably to simplify the flattening of the HTML.
If the DownloadTarget is also an IConsumer, give it control of the brakes
by offering ourselves to target.registerProducer(). When they tell us to
pause, set a flag, which is checked between segment downloads and decodes.
webish.py: make WebDownloadTarget an IConsumer and pass control along to
the http.Request, which already knows how to be an IConsumer.
This reduces the memory footprint of stalled HTTP GETs to a bare minimum,
and thus closes#129.
