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We sometimes see some web bots and crawlers make HEAD requests to verify
existence of certain pages in the application. However, they are less
than kind as 20-50 requests might arrive at the same time, and package
search and details pages are some of the slowest rendering pages we have
due to the Django template engine.
Rather than waste time generating the content only to throw it away,
response as soon as we can with either a 404 or 200 response as
appropriate, omitting the 'Content-Length' header completely, which
seems to be acceptable by the HTTP spec.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Dan McGee <dan@archlinux.org>
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Instead of having multiple methods, move this into our single 'created'
setter method. If the 'last_modified' property is present, we now update
it accordingly when saving any model with this signal attached.
Signed-off-by: Dan McGee <dan@archlinux.org>
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This takes a HttpRequest object and grabs the HTTP headers out of it and
pretty-prints them in a familiar format. This will come in handy if we
want to log these when creating package FlagRequests, releng Tests, etc.
in addition to already logging the IP address of the user posting the
request.
Signed-off-by: Dan McGee <dan@archlinux.org>
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This was around from the time when we handled timezones sanely and
Django did not; now that we are on 1.4 we no longer need our own code to
handle this.
Signed-off-by: Dan McGee <dan@archlinux.org>
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This adds a helper method to find the database engine in use, and then
skips code we shouldn't execute if we are doing this another way.
Note that this helper method could be useful for backend-specific code
paths elsewhere, such as custom SQL being called or lack of StdDev() in
sqlite3 out of the box.
Signed-off-by: Dan McGee <dan@archlinux.org>
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We were actually using the postdate attribute rather than last_modified,
which means any News objects that get edited would not trigger an update
of the feed.
Signed-off-by: Dan McGee <dan@archlinux.org>
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This is most of the transition to Django 1.4 `USE_TZ = True`. We need to
ensure we don't mix aware and non-aware datetime objects when dealing
with datetimes in the code. Add a utc_now() helper method that we can
use most places, and ensure there is always a timezone attached when
necessary.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Dan McGee <dan@archlinux.org>
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Django hashcompat is now deprecated.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Pull out a few helpful objects and functions for use later elsewhere.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Dan McGee <dan@archlinux.org>
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Get the stuff used to retrieve and refresh the latest date values all in
the same place, and make it a bit more beautiful by refactoring it all
into a common set of methods.
Signed-off-by: Dan McGee <dan@archlinux.org>
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We need to do this in the models.py files, otherwise the post_save signal
might not be connected right away on launch of the application. Move them
over there, add a dispatch_uid so it only gets hooked up once, and do some
other function moving around so we don't have circular imports.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Dan McGee <dan@archlinux.org>
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This allows caching the results of an arbitrary function and its arguments
in the Django-managed cache, e.g. memcached in production.
Signed-off-by: Dan McGee <dan@archlinux.org>
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