addons-server/services/theme_update.py

267 строки
9.1 KiB
Python

import json
import posixpath
import re
from time import time
from wsgiref.handlers import format_date_time
from olympia.constants import base
from services.utils import (
get_cdn_url, log_configure, log_exception, mypool, settings,
user_media_url)
# This has to be imported after the settings (utils).
from django_statsd.clients import statsd
# Configure the log.
log_configure()
class ThemeUpdate(object):
def __init__(self, locale, id_, qs=None):
self.from_gp = qs == 'src=gp'
self.addon_id = id_
self.cursor = mypool.connect().cursor()
def get_headers(self, length):
return [('Cache-Control', 'public, max-age=86400'),
('Content-Length', str(length)),
('Content-Type', 'application/json'),
('Expires', format_date_time(time() + 86400)),
('Last-Modified', format_date_time(time()))]
class MigratedUpdate(ThemeUpdate):
def get_data(self):
if hasattr(self, 'data'):
return self.data
primary_key = (
'getpersonas_id' if self.from_gp else 'lightweight_theme_id')
"""sql from:
MigratedLWT.objects.filter(lightweight_theme_id=xxx).values_list(
'static_theme_id',
'static_theme___current_version__files__filename',
'static_theme___current_version__files__hash').query"""
sql = """
SELECT `migrated_personas`.`static_theme_id`,
`files`.`filename`,
`files`.`hash`
FROM `migrated_personas`
INNER JOIN `addons` T3 ON (
`migrated_personas`.`static_theme_id` = T3.`id` )
LEFT OUTER JOIN `versions` ON (
T3.`current_version` = `versions`.`id` )
LEFT OUTER JOIN `files` ON (
`versions`.`id` = `files`.`version_id` )
WHERE `migrated_personas`.{primary_key}=%(id)s
""".format(primary_key=primary_key)
self.cursor.execute(sql, {'id': self.addon_id})
row = self.cursor.fetchone()
self.data = (
dict(zip(('stheme_id', 'filename', 'hash'), row)) if row else {})
return self.data
@property
def is_migrated(self):
return bool(self.get_data())
def get_json(self):
if self.get_data():
response = {
"converted_theme": {
"url": get_cdn_url(self.data['stheme_id'], self.data),
"hash": self.data['hash']
}
}
return json.dumps(response)
class LWThemeUpdate(ThemeUpdate):
def __init__(self, locale, id_, qs=None):
super(LWThemeUpdate, self).__init__(locale, id_, qs)
self.data = {
'locale': locale,
'id': id_,
# If we came from getpersonas.com, then look up by `persona_id`.
# Otherwise, look up `addon_id`.
'primary_key': 'persona_id' if self.from_gp else 'addon_id',
'atype': base.ADDON_PERSONA,
}
self.row = {}
def get_update(self):
"""
TODO:
* When themes have versions let's not use
`personas.approve` as a `modified` timestamp. Either set this
during theme approval, or let's keep a hash of the header and
footer.
* Do a join on `addons_users` to get the actual correct user.
We're cheating and setting `personas.display_username` during
submission/management heh. But `personas.author` and
`personas.display_username` are not what we want.
"""
sql = """
SELECT p.persona_id, a.id, a.slug, v.version,
t_name.localized_string AS name,
t_desc.localized_string AS description,
p.display_username, p.header,
p.footer, p.accentcolor, p.textcolor,
UNIX_TIMESTAMP(a.modified) AS modified,
p.checksum
FROM addons AS a
LEFT JOIN personas AS p ON p.addon_id=a.id
LEFT JOIN versions AS v ON a.current_version=v.id
LEFT JOIN translations AS t_name
ON t_name.id=a.name AND t_name.locale=%(locale)s
LEFT JOIN translations AS t_desc
ON t_desc.id=a.summary AND t_desc.locale=%(locale)s
WHERE p.{primary_key}=%(id)s AND
a.addontype_id=%(atype)s AND a.status=4 AND a.inactive=0
""".format(primary_key=self.data['primary_key'])
self.cursor.execute(sql, self.data)
row = self.cursor.fetchone()
def row_to_dict(row):
return dict(zip((
'persona_id', 'addon_id', 'slug', 'current_version', 'name',
'description', 'username', 'header', 'footer', 'accentcolor',
'textcolor', 'modified', 'checksum'),
list(row)))
if row:
self.row = row_to_dict(row)
# Fall back to `en-US` if the name was null for our locale.
# TODO: Write smarter SQL and don't rerun the whole query.
if not self.row['name']:
self.data['locale'] = 'en-US'
self.cursor.execute(sql, self.data)
row = self.cursor.fetchone()
if row:
self.row = row_to_dict(row)
return True
return False
def get_json(self):
if not self.get_update():
# Persona not found.
return
row = self.row
accent = row.get('accentcolor')
text = row.get('textcolor')
id_ = str(row[self.data['primary_key']])
data = {
'id': id_,
'name': row.get('name'),
'description': row.get('description'),
# TODO: Change this to be `addons_users.user.username`.
'author': row.get('username'),
# TODO: Change this to be `addons_users.user.display_name`.
'username': row.get('username'),
'headerURL': self.image_url(row['header']),
'footerURL': (
# Footer can be blank, return '' if that's the case.
self.image_url(row['footer']) if row['footer'] else ''),
'detailURL': self.locale_url(settings.SITE_URL,
'/addon/%s/' % row['slug']),
'previewURL': self.image_url('preview.png'),
'iconURL': self.image_url('icon.png'),
'accentcolor': '#%s' % accent if accent else None,
'textcolor': '#%s' % text if text else None,
'updateURL': self.locale_url(settings.VAMO_URL,
'/themes/update-check/' + id_),
# 04-25-2013: Bumped for GP migration so we get new `updateURL`s.
'version': row.get('current_version', 0)
}
# If this theme was originally installed from getpersonas.com,
# we have to use the `<persona_id>?src=gp` version of the `updateURL`.
if self.from_gp:
data['updateURL'] += '?src=gp'
return json.dumps(data)
def image_url(self, filename):
row = self.row
# Special cased for non-AMO-uploaded themes imported from getpersonas.
if row['persona_id'] != 0:
if filename == 'preview.png':
filename = 'preview.jpg'
elif filename == 'icon.png':
filename = 'preview_small.jpg'
image_url = posixpath.join(user_media_url('addons'),
str(row['addon_id']), filename or '')
if row['checksum']:
modified = row['checksum'][:8]
elif row['modified']:
modified = int(row['modified'])
else:
modified = 0
return '%s?modified=%s' % (image_url, modified)
def locale_url(self, domain, url):
return '%s/%s%s' % (domain, self.data.get('locale', 'en-US'), url)
url_re = re.compile(r'(?P<locale>.+)?/themes/update-check/(?P<id>\d+)$')
def application(environ, start_response):
"""
Developing locally?
gunicorn -b 0.0.0.0:7000 -w 12 -k sync -t 90 --max-requests 5000 \
-n gunicorn-theme_update services.wsgi.theme_update:application
"""
with statsd.timer('services.theme_update'):
try:
locale, id_ = url_re.match(environ['PATH_INFO']).groups()
locale = (locale or 'en-US').lstrip('/')
id_ = int(id_)
except AttributeError: # URL path incorrect.
start_response('404 Not Found', [])
return ['']
try:
query_string = environ.get('QUERY_STRING')
update = MigratedUpdate(locale, id_, query_string)
is_migrated = update.is_migrated
if is_migrated:
output = (
update.get_json() if settings.MIGRATED_LWT_UPDATES_ENABLED
else None)
else:
update = LWThemeUpdate(locale, id_, query_string)
output = update.get_json()
if not output:
start_response('404 Not Found', [])
return ['']
start_response('200 OK', update.get_headers(len(output)))
except Exception:
log_exception(environ['PATH_INFO'])
raise
return [output.encode('utf-8')]