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#!/usr/bin/env python
# Copyright (C) 2012 Aleksey Lim
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import time
import getpass
import logging
import tempfile
import subprocess
from base64 import b64encode
from os.path import join, exists
import MySQLdb as mdb
import active_document as ad
from sugar_network import Client
from sugar_network.toolkit.collection import PersistentSequence, Sequence
from sugar_network.zerosugar import GOOD_LICENSES, Bundle, parse_version
from sugar_network.resources.volume import Volume
from sugar_network.node import data_root
from sugar_network.local import api_url
from active_toolkit.options import Option
from active_toolkit import application
DOWNLOAD_URL = 'http://download.sugarlabs.org/activities'
ACTIVITIES_PATH = '/upload/activities'
EXCLUDE_BUNDLE_IDS = ['net.gcompris']
SUGAR_GUID = 'sugar'
SN_GUID = 'sugar-network'
CATEGIORIES_TO_TAGS = {
'Search & Discovery': 'discovery',
'Documents': 'documents',
'Chat, mail and talk': 'conversation',
'Programming': 'programming',
'Maps & Geography': 'geography',
'Media players': 'media',
'Teacher tools': 'teacher',
'Games': 'games',
'Media creation': 'media',
'Maths & Science': 'science',
'News': 'news',
}
MISNAMED_LICENSES = {
('artistic', '2.0'): 'Artistic 2.0',
('cc-by-sa',): 'CC-BY-SA',
('creative', 'share', 'alike'): 'CC-BY-SA',
}
class Application(application.Application):
_my_connection = None
_volume = None
_client = None
@property
def volume(self):
if self._volume is None:
self._volume = Volume(join(data_root.value, 'db'))
self._volume.populate()
return self._volume
@property
def client(self):
if self._client is None:
self._client = Client(api_url.value)
return self._client
def epilog(self):
if self._volume is not None:
self._volume.close()
@application.command(
'pull activities.sugarlabs.org content to local db')
def pull(self):
if not self.volume['context'].exists(SN_GUID):
self.volume['context'].create(
guid=SN_GUID,
implement=SN_GUID,
type='project',
title='Sugar Network',
summary='Sugar Network',
description='Sugar Network',
ctime=time.time(), mtime=time.time())
if not self.volume['context'].exists(SUGAR_GUID):
self.volume['context'].create(
guid=SUGAR_GUID,
implement=SUGAR_GUID,
type='package', title='Sugar',
summary='Constructionist learning platform',
description= \
'Sugar provides simple yet powerful means of engaging '
'young children in the world of learning that is '
'opened up by computers and the Internet. With Sugar, '
'even the youngest learner will quickly become '
'proficient in using the computer as a tool to engage '
'in authentic problem-solving. Sugar promotes '
'sharing, collaborative learning, and reflection, '
'developing skills that help them in all aspects '
'of life.',
ctime=time.time(), mtime=time.time(),
)
if self.args:
for addon_id in self.args:
self.sync_activities(addon_id)
else:
self.sync_activities()
@application.command(
'submit pulled activities.sugarlabs.org content to '
'Sugar Network server')
def push(self):
pull_seq = PersistentSequence(join(data_root.value, 'push'), [1, None])
last_seqno = None
try:
for document, directory in self.volume.items():
for guid, seqno, diff in directory.diff(pull_seq, limit=1024):
for meta in diff.values():
if 'path' in meta:
with file(meta.pop('path')) as f:
meta['content'] = b64encode(f.read())
self.client.put([document, guid], diff, cmd='merge')
last_seqno = max(last_seqno, seqno)
finally:
if last_seqno is not None:
pull_seq.exclude(1, last_seqno)
pull_seq.commit()
def sync_activities(self, addon_id=None):
sql = """
SELECT
id,
guid
FROM
addons
WHERE
status > 0 AND status < 5
"""
if addon_id:
sql += ' AND id = %s' % addon_id
for addon_id, bundle_id in self.sqlexec(sql):
if [i for i in EXCLUDE_BUNDLE_IDS if i in bundle_id]:
continue
self.sync_context(addon_id, bundle_id)
self.sync_versions(addon_id, bundle_id)
def sync_versions(self, addon_id, bundle_id):
sql = """
SELECT
versions.version,
addons.status,
licenses.name,
(select max(localized_string) from translations where
id=licenses.text),
versions.created,
versions.releasenotes,
files.filename,
(select version from appversions where
id=applications_versions.min),
(select version from appversions where
id=applications_versions.max)
FROM addons
INNER JOIN versions ON versions.addon_id=addons.id
LEFT JOIN licenses ON licenses.id=versions.license_id
INNER JOIN files ON files.version_id=versions.id
INNER JOIN applications_versions ON
applications_versions.version_id=versions.id
WHERE
addons.status > 0 AND addons.status < 5 AND addons.id = %s
""" % addon_id
recent_version = None
recent_impl = None
for version, status, license_id, alicense, release_date, \
releasenotes, filename, sugar_min, sugar_max \
in self.sqlexec(sql):
try:
parsed_version = parse_version(version)
except Exception, error:
print '-- Cannot parse %r version for %r: %s' % \
(version, bundle_id, error)
continue
if self.volume['implementation'].find(
context=bundle_id, version=version)[1] > 0:
continue
if license_id is None:
pass
elif license_id == 0:
alicense = 'MPLv1.1'
elif license_id == 1:
alicense = 'GPLv2'
elif license_id == 2:
alicense = 'GPLv3'
elif license_id == 3:
alicense = 'LGPLv2'
elif license_id == 4:
alicense = 'LGPLv3'
elif license_id == 5:
alicense = 'MIT'
elif license_id == 6:
alicense = 'BSD'
else:
parsed_license = self.parse_license(alicense)
if not parsed_license:
print '-- Skip bad license %r from %s' % \
(alicense, filename)
continue
alicense = parsed_license
impl = self.sync_implementaiton(bundle_id,
'http://download.sugarlabs.org/activities/%s/%s' % \
(addon_id, filename),
sugar_min, sugar_max,
stability='stable' if status == 4 else 'developer',
date=int(time.mktime(release_date.timetuple())),
notes=self.get_i18n_field(releasenotes),
license=[alicense] if alicense else [],
)
if impl and parsed_version > recent_version:
recent_version = parsed_version
recent_impl = impl
if recent_version:
icon = recent_impl.pop('artifact_icon')
self.volume['context'].update(bundle_id, **recent_impl)
self.volume['context'].set_blob(bundle_id, 'artifact_icon', icon)
with tempfile.NamedTemporaryFile() as f:
f.write(icon)
f.flush()
path = f.name + '.png'
subprocess.check_call([
'convert',
'-background', 'none',
'-adaptive-resize', '55x55',
f.name, path])
with file(path) as icon:
self.volume['context'].set_blob(bundle_id, 'icon', icon)
path = f.name + '.png'
subprocess.check_call([
'convert',
'-background', 'none',
'-density', '400',
'-adaptive-resize', '160x120',
f.name, path])
with file(path) as icon:
self.volume['context'].set_blob(bundle_id, 'preview', icon)
def sync_context(self, addon_id, bundle_id):
if not self.volume['context'].exists(bundle_id):
self.volume['context'].create(guid=bundle_id, type='activity',
implement=bundle_id, title='', summary='', description='',
user=['aslo'], layer=['public'], ctime=0, mtime=0)
created, modified, title, summary, description, homepage, name = \
self.sqlexec("""
SELECT
addons.created,
addons.modified,
addons.name,
addons.summary,
addons.description,
(select max(localized_string) from translations where
id=addons.homepage),
CONCAT_WS(' ', users.firstname, users.lastname)
FROM
addons
INNER JOIN addons_users on addons_users.addon_id=addons.id
INNER JOIN users on users.id=addons_users.user_id
WHERE addons.id=%s
""" % addon_id)[0]
created = int(time.mktime(created.timetuple()))
modified = int(time.mktime(modified.timetuple()))
if self.volume['context'].get(bundle_id)['mtime'] >= modified:
return
print '-- Update %r activity' % bundle_id
tags = set()
for row in self.sqlexec("""
SELECT
(select localized_string from translations where
id=categories.name AND locale='en-US')
FROM addons_categories
INNER JOIN categories ON
categories.id=addons_categories.category_id
WHERE
addons_categories.addon_id=%s
""" % addon_id):
tags.add(CATEGIORIES_TO_TAGS[row[0]])
for row in self.sqlexec("""
SELECT
tags.tag_text
FROM users_tags_addons
INNER JOIN tags ON tags.id=users_tags_addons.tag_id
INNER JOIN addons_users ON
addons_users.addon_id=users_tags_addons.addon_id
WHERE
users_tags_addons.addon_id=%s
""" % addon_id):
tags.add(row[0])
self.volume['context'].update(bundle_id,
title=self.get_i18n_field(title),
summary=self.get_i18n_field(summary),
description=self.get_i18n_field(description),
homepage=homepage or '',
tags=list(tags),
author=[name],
ctime=created,
mtime=modified)
def sync_implementaiton(self, context, url, sugar_min, sugar_max,
**impl_props):
path = url[len(DOWNLOAD_URL):].strip('/').split('/')
path = join(ACTIVITIES_PATH, *path)
if not exists(path):
print '-- Cannot find ASLO bundle at %s' % path
return None
try:
bundle = Bundle(path)
except Exception, error:
print '-- Cannor read %s bundle: %s' % (path, error)
return None
spec = bundle.get_spec()
if spec is None:
print '-- Bundle %s does not contain spec' % path
return None
if not impl_props['license']:
impl_props['license'] = self.parse_license(spec['license'])
if not impl_props['license']:
print '-- Skip bad license %r from %s' % \
(spec['license'], path)
return None
print '-- Add %r version to %r activity' % (spec['version'], context)
spec.requires[SUGAR_GUID] = {
'restrictions': [
(sugar_min, None),
(None, '0.%s' % (int(sugar_max.split('.')[-1]) + 1)),
],
}
impl = self.volume['implementation'].create(
context=context,
version=spec['version'],
user=['aslo'],
spec={'*-*': {
'commands': spec.commands,
'requires': spec.requires,
'extract': bundle.extract,
}},
ctime=time.time(), mtime=time.time(),
**impl_props)
self.volume['implementation'].set_blob(impl, 'data', url=url)
icon = bundle.extractfile(join(bundle.extract, spec['icon'])).read()
return {'homepage': spec['homepage'] or '',
'mime_types': spec['mime_types'] or [],
'artifact_icon': icon,
}
def parse_license(self, alicense):
for good in GOOD_LICENSES:
if not alicense or good in ['ec']:
continue
if good in alicense:
alicense = good
break
else:
for words, good in MISNAMED_LICENSES.items():
for i in words:
if i not in alicense.lower():
break
else:
alicense = good
break
else:
return None
return alicense
def get_i18n_field(self, id):
result = {}
if id:
for locale, value in self.sqlexec("""
SELECT
locale, localized_string
FROM
translations
WHERE
id = %s""" % id):
result[locale] = value
return result
def sqlexec(self, text):
if self._my_connection is None:
self._my_connection = mdb.connect('localhost',
user.value, getpass.getpass(), database.value)
cursor = self._my_connection.cursor()
cursor.execute(text)
return cursor.fetchall()
server = Option(
'MySQL server',
default='localhost', name='server')
database = Option(
'MySQL database',
default='activities', name='database')
user = Option(
'MySQL user',
default='root', name='user')
Option.seek('main', [application.debug])
Option.seek('aslo', [server, user, database])
Option.seek('node', [data_root])
Option.seek('local', [api_url])
ad.index_write_queue.value = 1024 * 10
ad.index_flush_threshold.value = 0
ad.index_flush_timeout.value = 0
application = Application(
name='sugar-network-aslo',
description= \
'Synchronize Sugar Network content with '
'http://activities.sugarlabs.org',
config_files=['/etc/sweets.conf', '~/.config/sweets/config'])
application.start()
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