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import logging
import imp
import itertools
import operator
import os
import shutil
import tempfile
from cStringIO import StringIO
import cherrypy
import openobject.tools.ast
import openobject.tools.zip
from openobject import errors, paths, rpc
logger = logging.getLogger('openobject.addons')
class Graph(dict):
def addNode(self, name, deps):
max_depth, father = 0, None
for n in [Node(x, self) for x in deps]:
if n.depth >= max_depth:
father = n
max_depth = n.depth
if father:
father.addChild(name)
else:
Node(name, self)
def __iter__(self):
level = 0
done = set(self.keys())
while done:
level_modules = [(name, module) for name, module in self.items() if module.depth==level]
for name, module in level_modules:
done.remove(name)
yield module
level += 1
class Singleton(object):
def __new__(cls, name, graph):
if name in graph:
inst = graph[name]
else:
inst = object.__new__(cls)
inst.name = name
graph[name] = inst
return inst
class Node(Singleton):
def __init__(self, name, graph):
self.name = name
self.graph = graph
if not hasattr(self, 'children'):
self.children = []
if not hasattr(self, 'depth'):
self.depth = 0
def addChild(self, name):
node = Node(name, self.graph)
node.depth = self.depth + 1
if node not in self.children:
self.children.append(node)
for attr in ('init', 'update', 'demo'):
if hasattr(self, attr):
setattr(node, attr, True)
self.children.sort(lambda x, y: cmp(x.name, y.name))
def __setattr__(self, name, value):
super(Singleton, self).__setattr__(name, value)
if name in ('init', 'update', 'demo'):
import openobject.tools._utils as tools
tools.config[name][self.name] = 1
for child in self.children:
setattr(child, name, value)
if name == 'depth':
for child in self.children:
setattr(child, name, value + 1)
def __iter__(self):
return itertools.chain(iter(self.children), *map(iter, self.children))
def __str__(self):
return self._pprint()
def _pprint(self, depth=0):
s = '%s\n' % self.name
for c in self.children:
s += '%s`-> %s' % (' ' * depth, c._pprint(depth+1))
return s
def exists(module):
return os.path.exists(paths.addons(module, '__openerp__.py'))
def get_info(module):
mod_path = paths.addons(module)
if not os.path.isdir(mod_path):
return {}
terp_file = os.path.join(mod_path, '__openerp__.py')
if not os.path.isfile(terp_file):
return {}
try:
return openobject.tools.ast.literal_eval(open(terp_file).read())
except:
cherrypy.log('module %s: eval file %s' % (module, terp_file), "ERROR")
raise
def create_graph(module_list):
graph = Graph()
upgrade_graph(graph, module_list)
return graph
def upgrade_graph(graph, module_list):
packages = []
len_graph = len(graph)
for module in module_list:
info = get_info(module)
if info.get('installable', True):
packages.append((module, info.get('depends', []), info))
dependencies = dict([(p, deps) for p, deps, _ in packages])
current, later = set([p for p, _, _ in packages]), set()
while packages and current > later:
package, deps, data = packages[0]
# if all dependencies of 'package' are already in the graph, add 'package' in the graph
if reduce(lambda x, y: x and y in graph, deps, True):
if not package in current:
packages.pop(0)
continue
later.clear()
current.remove(package)
graph.addNode(package, deps)
node = Node(package, graph)
node.data = data
else:
later.add(package)
packages.append((package, deps, data))
packages.pop(0)
for package in later:
unmet_deps = filter(lambda p: p not in graph, dependencies[package])
cherrypy.log('module %s: Unmet dependencies: %s' % (package, ', '.join(unmet_deps)), "ERROR")
result = len(graph) - len_graph
if result != len(module_list):
cherrypy.log('Not all modules have loaded.', "ERROR")
return result
def imp_module(name):
fp, pathname, description = imp.find_module(name, [paths.addons()])
try:
return imp.load_module(name, fp, pathname, description)
finally:
if fp:
fp.close()
from openobject import i18n
from openobject import pooler
def load_module_graph(db_name, graph, config):
pool = pooler.get_pool()
for package in graph:
if package.name in _loaded_addons:
continue
cherrypy.log("Loading module '%s'" % package.name, "INFO")
imp_module(package.name)
static = paths.addons(package.name, 'static')
if os.path.isdir(static):
from openobject.widgets import register_resource_directory
register_resource_directory(config, package.name, static)
addon_path = paths.addons(package.name)
if os.path.isdir(paths.addons(package.name, 'po')):
i18n.load_translations(addon_path)
i18n.load_translations(addon_path, domain="javascript")
_loaded_addons[package.name] = True
for package in graph:
pool.load(package.name)
_loaded[db_name][package.name] = True
_loaded = {}
_loaded_addons = {}
def get_local_addons():
return [f for f in os.listdir(paths.addons()) \
if os.path.isfile(paths.addons(f, "__openerp__.py"))]
def load_addons(db_name, config):
if db_name in _loaded:
return
cherrypy.request.loading_addons = True
_loaded[db_name] = {}
pooler.get_pool().load('openobject')
base_addons = [m for m in get_local_addons() if get_info(m).get("active")]
graph = create_graph(base_addons)
load_module_graph(db_name, graph, config)
try:
new_modules = get_new_modules()
except errors.AuthenticationError:
new_modules = []
new_modules_in_graph = upgrade_graph(graph, new_modules)
if new_modules_in_graph:
load_module_graph(db_name, graph, config)
cherrypy.request.loading_addons = False
writeable = os.access(paths.addons(), os.W_OK)
if not writeable:
logger.warn(
"Can not write to the addons directory '%s', "
"will not be able to download web modules",
paths.addons())
def has_new_modules():
""" Returns whether there are new web modules available for download
(brand new or updates)
:rtype bool:
"""
try:
return bool([
name for (name, version) in rpc.RPCProxy('ir.module.module').list_web()
if (not exists(name)
or version > get_info(name).get('version', '0')
or name not in _loaded[cherrypy.session.get('db')])
])
except KeyError:
# db has not been loaded yet
return False
def get_new_modules():
if not writeable: return []
modules = rpc.RPCProxy('ir.module.module')
web_modules = modules.list_web()
if not web_modules: return []
addons_to_load = map(operator.itemgetter(0), web_modules)
addons_to_download = [
name for (name, version) in web_modules
if (not exists(name)
or version > get_info(name).get('version', '0'))
]
# avoid querying for 0 addons if we have everything already
if not addons_to_download: return addons_to_load
web_payload = modules.get_web(addons_to_download)
for module in web_payload:
# Due to the way zip_directory works on the server, we get a toplevel
# dir called "web" for our addon, rather than having it named
# "the right way". Dump to temp directory and move to right name.
temp_dir = tempfile.mkdtemp()
openobject.tools.zip.extract_zip_file(
StringIO(module['content'].decode('base64')), temp_dir)
# cleanup any existing addon of the same name
module_dir = paths.addons(module['name'])
shutil.rmtree(module_dir, ignore_errors=True)
shutil.move(os.path.join(temp_dir, 'web'), module_dir)
shutil.rmtree(temp_dir)
dependencies = map(lambda u: u.encode('utf-8'), module['depends'])
descriptor = open(os.path.join(module_dir, '__openerp__.py'), 'wb')
descriptor.write('# -*- coding: utf-8 -*-\n')
descriptor.write("%s" % ({
'name': module['name'].encode('utf-8'),
'version': module['version'].encode('utf-8'),
# addons depend at least of openerp
'depends': dependencies or ['openerp'],
},))
descriptor.close()
return addons_to_load
# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
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