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CouchDatabase was renamed to SoledadBackend and a new class
CouchDatabase was created to hold all couchdb code. This should make
SoledadBackend less tied to database implementation. A few more
separations are needed to split into modules.
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This was added for a Twisted 12 bug that should be gone by now.
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LEAP Platform needs to granularly allow access on user database for
other services, like mx. This is now possible by editing
soledad-server.conf file. A new section 'database-security' was added
and it is parsed during 'create-user-db' to be set on security design
document, present on every per-user database.
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couchdb library relies on garbage collector to close remaining
connections. Somehow, caching the instance is avoiding gc to call
__del__ on underlying couchdb sessions.
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It was 3600s, but closing connections seems to yet depend on garbage
collection and now causes server to leak file handlers. 120s should be
enough to a sync session finish. Also, lowering this value will only
make very long syncs use more of couch every 2 minutes, while raising
this value will keep memory busy for useless time.
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- Resolves: #7509
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netrc file was hardcoded inside create-user-db. Now it reads the path
from /etc/leap/soledad-server.conf as done on server process.
The new configuration property is called 'admin_netrc'.
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We can now use a custom script to create databases by setting a
parameter 'create_cmd' on soledad configuration.
This will set CouchServerState to use it on ensure_database.
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As meskio found commented, setting this attribute directly is ugly,
CouchDatabase now has a init_caching method for setting up cache
instance.
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Now each backend object will be retrieved from cache for sync.py and
values will live for 3600 by default. That is changed via parameter if
needed.
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The CouchDB backend implementation was accessing CouchDB too many times
for the same values. Those values are known inside the same sync_id,
which is the id of current sync session.
This commit adds caching for all redundant calls to Couch inside the
same sync_id for each replica.
Refactoring is still needed, but for now couch.py works normally as if
caching is not present, while sync.py injects the cache as a attribute
to enable it. This needs a simpler implementation.
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There are two functions in couch.py used to save and retrieve the last
know gen and trans id for the syncing replica. The get function is
called very often, but is only set on one point. Added a simple caching
to avoid queying couch for a value that we already have.
If cache is empty, it just query as usual and fills it.
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This commit changes sync_state to be in memory, with all tests passing.
The memory variable for now is a dict with each key composed by
source_replica_uid and sync_id, replicating CouchDB implementation. Next
steps includes migrating this to Beaker and refactor/clean up code.
Changed the module's INFO dict to use Beaker's caching and adapted
methods to get and save from it. Still needs refactoring, all tests
passes.
Beaker is now using memory as default; It is configurable, but we aren't
opening the possibility of config now for security. We need to check
what can be misconfigured first.
We are not sure if beaker will be the definitive solution for server
side caching. This change isolates it with more granularity.
In order to replace it, just change get_cache_for to return the proper
caching object using another implementation. This caching object is
supposed to behave as a dict.
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If we check for a BadRequest after calling meth_put we will end up on a
scenario where the server replies with an error, but everything got
processed.
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This commit removes some leftover code from a time when Soledad Server used to
check for permissions on certain databases when starting (i.e. shared and
tokens databases). This was later removed as correct permissions enforcement
was relayed to tapicero.
Closes: #6833.
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Any solead release that includes this commit will be incompatible with LEAP
Platform < 0.6.1 because only from that version on the platform implements the
ephemeral monthly tokens databases.
Closes: #6785.
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until now this was only possible when running python setup.py version
from the source tree. now the <module>.__version__ also reports
correctly the runnng version
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* Improve bootstrap sequence:
- stages are more organized.
- there are less useless requests to server.
* Improve shared db access:
- instantiate the shared db only once.
- also results in less requests to server.
* Handle unicode passphrases.
* Move some common functions and global variables to common.
* Improve security of recovery document:
- access to the recovery document now depends on the user password.
* Improve documentation.
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* add versioneer (patched for our particular repo config)
* add parse_requirements to unify requirement handling
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