Source code for

# $Id$
"""Front build management.

A *front* is a web site.

import re
import xmlrpclib
from logging import getLogger
from time import time, sleep
from datetime import datetime
from random import randint
from threading import Thread
from os import walk, makedirs, rename, sep
from os.path import join, exists, isfile, dirname, relpath, normpath
from cStringIO import StringIO
from lxml import etree

from pyramid.httpexceptions import HTTPNotFound, HTTPForbidden

from ..i18n import _, localizer
from ..utils import copy_content, decrypt
from ..utils import camel_case, has_permission, EXCLUDED_FILES
from ..viewutils import current_storage
from ..packutils import pack2task
from ..rsync import get_block_size, SigFile, PatchedFile, DeltaFile
from ...views import xmlrpc
from ...models import DBSession
from ...models.users import User
from ...models.processors import Processor
from ...models.storages import StorageUser
from ...models.processings import ADD2PACK_TARGETS
from ...models.packs import Pack, PackFile

LOG = getLogger(__name__)

# =============================================================================
[docs]class FrontBuildManager(object): """This class manages front builds. One instance of :class:`FrontBuildManager` is created during application initialization. It is only used in front mode. It is stored in application registry. ``self._agents`` is a dictionary such as ``{url: (agent_id, password, weight, processor_list, processor_expire_time, concurrent),... }`` which stores agent features. ``self._builds`` is a dictionary of :class:`FrontBuild` objects. ``self._results`` is a dictionary of dictionaries such as ``{build_id: result_dict}``. ``result_dict`` is a dictionary with following keys: ``status``, ``log``, ``expire``, ``project_id``, ``user_id``. According to build events, it can also contains ``files``, ``values`` and ``error`` keys. ``self._results[build_id]['status']`` is one of the following strings: ``stop``, ``fatal`` or ``end``. ``self._results[build_id]['log']`` is a list of tuples such as ``(timestamp, step, percent, message)``. """ # pylint: disable = R0902 # ------------------------------------------------------------------------- def __init__(self, settings): """Constructor method. :param settings: (dictionary) Setting dictionary. """ # Attributes self.storage_root = settings['storage.root'] self.build_ttl = int(settings.get('build.ttl', 1800)) self.result_ttl = int(settings.get('build.result_ttl', 604800)) self._concurrent = [int(settings.get('front.synchronize', 1)), 1] self._refresh = int(settings.get('agent.refresh', 0)) self._builds = {} self._results = {} # Agent list self._agents = {} for index in range(0, 100): pfx = 'agent.%d' % index weight = int(settings.get('%s.weight' % pfx, 0)) if weight: self._agents[settings.get('%s.url' % pfx, '')] = [ None, settings.get('%s.password' % pfx, ''), weight, None, 0, 0] # -------------------------------------------------------------------------
[docs] def agent_urls(self): """Return a list of URLs of available agents.""" return [k or 'localhost' for k in self._agents.keys()]
# -------------------------------------------------------------------------
[docs] def refresh_agent_list(self, request): """Refresh processor list for each agent. :param request: (:class:`pyramid.request.Request` instance) Current request. """ # Refresh processor list now = time() modified = False self._concurrent[1] = 0 for url in self._agents: if self._agents[url][0] is None or \ (self._agents[url][0] == '?' and self._refresh and self._agents[url][4] < now): error, agent_id =, url, 'agent_id') self._agents[url][0] = agent_id or '?' if self._agents[url][3] is None \ or (self._refresh and self._agents[url][4] < now): error, processors =, url, 'processor_list') if error: LOG.error('%s: %s', url, error) processors = processors or (tuple(), 0) self._agents[url][3] = processors[0] self._agents[url][4] = now + self._refresh self._agents[url][5] = processors[1] modified = True self._concurrent[1] += self._agents[url][5] if not modified: return # Refresh processor records if self._refresh: DBSession.query(Processor).filter( Processor.updated + self._refresh < now).delete() DBSession.commit() processors = [k[0] for k in DBSession.query(Processor.processor_id)] for url in sorted(self._agents): for processor_id in self._agents[url][3]: if processor_id in processors: continue error, xml = request, url, 'processor_xml', processor_id) if error: LOG.error('%s: %s', url, error) continue if not xml: LOG.error('%s: %s has an incorrect XML', url, processor_id) continue processor = Processor.load(processor_id, xml) if isinstance(processor, basestring): LOG.error('%s: %s', url, request.localizer.translate(processor)) continue DBSession.add(processor) DBSession.commit()
# -------------------------------------------------------------------------
[docs] def find_agent(self, request, processor_id): """Find an agent which serves ``processor_id``. :param request: (:class:`pyramid.request.Request` instance) Current request. :param processor_id: (string) ID of the processor agent must serve. :return: (tuple): A tuple such as ``(url, uid)`` or (``None``, ``None``). """ found_url = None agent_id = '' min_activity = 0 self.refresh_agent_list(request) for url in self._agents: if self._agents[url][3] and processor_id in self._agents[url][3]: error, activity =, url, 'activity') if error: LOG.error('%s: %s', url, error) continue if activity == -1: continue activity = (activity + .1) / self._agents[url][2] if found_url is None or activity < min_activity: found_url = url agent_id = self._agents[url][0] min_activity = activity return found_url, agent_id
# -------------------------------------------------------------------------
[docs] def processor(self, request, processor_id): """Return a processor tree. :param request: (:class:`pyramid.request.Request` instance) Current request. :param processor_id: (string) Processor ID :return: (:class:`lxml.etree.ElementTree` or ``None``) """ self.refresh_agent_list(request) xml = DBSession.query(Processor.xml).filter_by( processor_id=processor_id).first() if xml is not None and xml[0]: return etree.parse(StringIO(xml[0].encode('utf8')))
# -------------------------------------------------------------------------
[docs] def start_build(self, request, processing, processor, pack, tasks=None): """Find an agent, convert processing and pack into dictionaries, create a build, add it in ``self._builds`` dictionary and try to start it. :param request: (:class:`pyramid.request.Request` instance) Current request. :param processing: (:class:`~.models.processings.Processing` instance) Processing object. :param processor: (:class:`lxml.etree.ElementTree` instance) Processor of current processing. :param pack: (:class:`~.models.packs.Pack` instance) Pack object. :param tasks: (tuple, optional) A tuple such as ``(task_ko, task_ok)``. If it is not ``None``, the pack is transfered to the task according to success. :return: (string or ``None``) Build ID. """ # Compute ID self._cleanup() user_id = request.session['user_id'] build_id = '{prj_id}-{prc_id}-{pck_id}-{usr_id}'.format( prj_id=processing.project_id, prc_id=processing.processing_id, pck_id=pack.pack_id, usr_id=user_id) if build_id in self._builds: request.session.flash(_( '${i}: action already in progress.', {'i': build_id}), 'alert') return build_id # Processing dictionary path = processor.find('processor/templates') path = path is not None and path.get('root') or '' processing_dict = { 'label': processing.label, 'processor_id': processing.processor, 'variables': self._variables2dict( request, processing, processor, pack), 'resources': self._files2list( request, path, processing, 'resource'), 'templates': self._files2list( request, path, processing, 'template'), 'output': processing.output or '', 'add2pack': processing.add2pack or ''} if request.session.peek_flash('alert'): return if processing_dict['output'] and pack.outputs: processing_dict['output'] = dict( [(k.processing_id, k.path) for k in pack.outputs]).get( processing.processing_id, processing.output) if '%(user)s' in processing_dict['output']: processing_dict['output'] = processing_dict['output'].replace( '%(user)s', camel_case(request.session['login'])) # Pack dictionary pack_dict = { 'project_id': pack.project_id, 'pack_id': pack.pack_id, 'label': pack.label, 'recursive': pack.recursive, 'files': self._files2list(request, path, pack, 'file'), 'resources': self._files2list(request, path, pack, 'resource'), 'templates': self._files2list(request, path, pack, 'template'), 'task_ko': tasks and tasks[0] or '', 'task_ok': tasks and tasks[1] or ''} if request.session.peek_flash('alert'): return # Create a FrontBuild object if build_id in self._results: del self._results[build_id] self._builds[build_id] = FrontBuild( self, build_id, user_id, request.session['lang'], processing_dict, pack_dict) self.start_waiting(request) return build_id
# -------------------------------------------------------------------------
[docs] def start_waiting(self, request): """Start waiting builds. :param request: (:class:`pyramid.request.Request` instance) Current request. """ # Look for waiting builds waiting = [] synchronizing = 0 running = 0 for build_id in self._builds: if self._builds[build_id].result['log'][0][1] == 'wait': waiting.append(build_id) elif self._builds[build_id].result['log'][-1][1] == 'sync': synchronizing += 1 running += 1 elif not self._builds[build_id].stopped(): running += 1 if not waiting or synchronizing >= self._concurrent[0] \ or running >= self._concurrent[1]: return # Start waiting builds waiting = sorted( waiting, key=lambda build_id: self._builds[build_id].result['log'][0][0]) for build_id in waiting: if build_id not in self._builds: continue self._builds[build_id].expire = time() + self.build_ttl if synchronizing < self._concurrent[0] \ and running < self._concurrent[1] \ and self._builds[build_id].start(request): running += 1 if self._builds[build_id].agent_url: synchronizing += 1 sleep(.2)
# -------------------------------------------------------------------------
[docs] def progress(self, request, build_ids): """Return the progress of builds. :param request: (:class:`pyramid.request.Request` instance) Current request. :param build_ids: (list) Build ID list. :return: (tuple) Return a tuple such as ``(<working>, <progress_dictionary>)``. ``<working>`` is a boolean indicating whether one of the processing is in progress. ``<progress_dictionary>`` is a dictionary such as ``{<build_id>: (<step>, <percent>, <message>, <start_time>, <agent_id)>),...}`` where ``<step>`` is one of the following: * ``wait``: waiting * ``start``: starting * ``sync``: synchronizing storages between front and agent * ``a_???``: an :class:`` step * ``get``: getting result * ``warn``: a warning occurred * ``error``: an error occurred * ``fatal``: a fatal error occurred * ``stop``: stopping * ``end``: successfully completed * ``none``: unknown or not in progress build """ self._cleanup() self.start_waiting(request) working = False prgrss = {} for build_id in build_ids: if build_id in self._builds: prgrss[build_id] = self._builds[build_id].progress(request) working = True else: prgrss[build_id] = ('none', 0, '', time(), '') return working, prgrss
# -------------------------------------------------------------------------
[docs] def complete(self, request, build_id, key): """Get the result and possibly download the output directory in storage. :param request: (:class:`pyramid.request.Request` instance) Current request. :param build_id: (string) Build ID. :param key: (string) Key to authenticate the request. :return: (boolean) """ if build_id in self._builds: completed = self._builds[build_id].complete(request, key) else: completed = build_id in self._results self._cleanup() self.start_waiting(request) return completed
# -------------------------------------------------------------------------
[docs] def stop(self, request, build_ids, user_id=None): """Stop a build. :param request: (:class:`pyramid.request.Request` instance) Current request. :param build_ids: (list, optional) IDs of build to stop. :param user_id: (integer, optional) Current user ID. """ self._cleanup() for build_id in build_ids: if build_id in self._builds \ and self.is_owner(request, build_id, user_id): self._builds[build_id].stop(request)
# -------------------------------------------------------------------------
[docs] def result(self, build_id): """Return the result of a build. :param build_id: (string) Build ID. :return: (dictionary) """ self._cleanup() return self._results.get(build_id, {})
# -------------------------------------------------------------------------
[docs] def forget_results(self, project_id, user_id=None, build_ids=None, pack_id=None): """Forget results for one pack or several builds. :param project_id: (integer) Project ID. :param user_id: (integer, optional) Current user ID. :param build_ids: (list, optional) IDs of build to forget. :param pack_id: (string, optional) Pack ID. """ # pylint: disable = too-many-boolean-expressions for build_id, result in self._results.items(): if project_id == result['project_id'] \ and (user_id is None or user_id == result['user_id']) \ and ((build_ids is None and pack_id is None) or (build_ids is not None and build_id in build_ids) or pack_id == int(build_id.split('-')[2])): del self._results[build_id]
# -------------------------------------------------------------------------
[docs] def build_list(self, project_id, user_id=None): """List all builds of a project. :param project_id: (integer) Project ID. :param user_id: (integer, optional) User ID. :return: (list) A list of dictionaries. Returned dictionaries are sorted by start time. Each dictionary has following keys: ``build_id``, ``start``, ``status``, ``processing_id``, ``pack_id``, ``user_id`` and ``output``. """ self._cleanup() builds = [] for build_id, build in self._builds.items(): if build.result['project_id'] == project_id and \ (user_id is None or build.result['user_id'] == user_id): builds.append({ 'build_id': build_id, 'start': build.result['log'][0][0], 'status': build.result['status'], 'processing_id': int(build_id.split('-')[1]), 'pack_id': int(build_id.split('-')[2]), 'user_id': build.result['user_id'], 'output': build.result['output']}) for build_id, result in self._results.items(): if result['project_id'] == project_id \ and (user_id is None or result['user_id'] == user_id): builds.append({ 'build_id': build_id, 'start': result['log'][0][0], 'status': result['status'], 'processing_id': int(build_id.split('-')[1]), 'pack_id': int(build_id.split('-')[2]), 'user_id': result['user_id'], 'output': result['output'], 'files': 'files' in result and result['files'] or None}) return sorted(builds, key=lambda k: k['start'], reverse=True)
# -------------------------------------------------------------------------
[docs] def is_owner(self, request, build_id, user_id=None): """Check if user ``user_id`` has launched the build ``build_id``. :param request: (:class:`pyramid.request.Request` instance) Current request. :param build_id: (string) Build to check :param user_id: (integer, optional) User ID to check. By default, the current user is checked. :rtype: (boolean) """ if user_id is None: user_id = request.session['user_id'] if (build_id in self._results and self._results[build_id]['user_id'] == user_id) or \ (build_id in self._builds and self._builds[build_id].result['user_id'] == user_id) or \ has_permission(request, 'prj_manager'): return True return False
# -------------------------------------------------------------------------
[docs] def call(self, request, url, method, *args): """Call an agent method directly or via RPC. :param request: (:class:`pyramid.request.Request` instance) Current request. :param url: (string) The agent URL or ``localhost`` to call without RPC. :param method: (string) Method to call :param args: Non-keyworded arguments for method. :return: (tuple) A tuple such as ``(<error>, <result>)`` where ``<error>`` is a string and ``<result>`` depends on ``method``. In addition to the required arguments, this method sends also a context dictionary with ``lang`` (language for error messages), ``front_id``, ``password`` (to authenticate front), ``user_id`` and ``local`` (``True`` if called without XML-RPC). If this method is called for a local agent, it adds a ``request`` key in context. """ # Create context context = {'front_id': request.registry.settings['uid'], 'password': self._agents[url][1], 'user_id': request.session['user_id'], 'login': request.session['login'], 'lang': request.session['lang'], 'name': request.session['name']} # Local agent if not url: context['local'] = True context['request'] = request try: return getattr(xmlrpc, method)(request, context, *args) except AttributeError as err: return err, None # Remote agent context['local'] = False proxy = xmlrpclib.ServerProxy('%s/xmlrpc' % url, verbose=False) try: error, result = getattr(proxy, method)(context, *args) except IOError as err: error, result = err.strerror, None except (OverflowError, MemoryError) as err: error, result = err, None except xmlrpclib.ProtocolError as err: error, result = err.errmsg, None except xmlrpclib.Fault as err: error, result = err.faultString, None return error, result
# ------------------------------------------------------------------------- def _cleanup(self): """Delete completed builds and expired results and kill long builds.""" # Build -> result or stop now = time() # pylint: disable = consider-iterating-dictionary for build_id in self._builds.keys(): if self._builds[build_id].stopped(): self._results[build_id] = self._builds[build_id].result self._results[build_id]['expire'] = now + self.result_ttl del self._builds[build_id] elif self._builds[build_id].expire < now: self._builds[build_id].stopped(_('timeout')) # Remove old results for build_id in self._results.keys(): if self._results[build_id]['expire'] < now: del self._results[build_id] # ------------------------------------------------------------------------- @classmethod def _variables2dict(cls, request, processing, processor, pack): """Create a variable dictionary from a processing record and its processor. :param request: (:class:`pyramid.request.Request` instance) Current request. :param processing: (:class:`~.models.processings.Processing` instance) :param processor: (:class:`lxml.etree.ElementTree` instance) Processor of current processing. :param pack: (:class:`~.models.packs.Pack` instance) :return: (dictionary) """ defaults = dict([(, k.default) for k in processing.variables]) values = dict([(, k.value) for k in pack.variables if k.processing_id == processing.processing_id]) variables = {} for var in processor.findall('processor/variables/group/var'): name = var.get('name') value = values[name] if name in values \ else (defaults[name] if name in defaults and defaults[name] is not None else var.findtext('default', '')) if var.get('type') in ('string', 'text'): variables[name] = value elif var.get('type') == 'boolean': variables[name] = (value == 'true') elif var.get('type') == 'integer': variables[name] = int(value) elif var.get('type') == 'select': if value not in [k.get('value') or k.text for k in var.findall('option')]: request.session.flash( _('${v}: bad value.', {'v': name}), 'alert') LOG.error(request.localizer.translate( _('${v}: bad value.', {'v': name}))) return variables variables[name] = int(value) if value.isdigit() else value elif var.get('type') == 'regex': if not re.match(var.find('pattern').text, value): request.session.flash( _('${v}: bad value.', {'v': name}), 'alert') LOG.error(request.localizer.translate( _('${v}: bad value.', {'v': name}))) return variables variables[name] = value return variables # ------------------------------------------------------------------------- @classmethod def _files2list(cls, request, template_path, record, file_type): """Save set of files in a list. :param request: (:class:`pyramid.request.Request` instance) Current request. :param template_path: (string) Relative path for templates. :param record: (:class:`~.models.processings.Processing` or :class:`~.models.projects.ProjectPack` instance). :param file_type: ('file', 'resource' or 'template') File type. """ file_set = [] items = [k for k in record.files if k.file_type == file_type] if len(items) == 0: return file_set storage_root = request.registry.settings['storage.root'] for item in sorted(items, key=lambda k: k.sort): if not exists(join(storage_root, item.path)): request.session.flash( _('"${n}" does not exist.', {'n': item.path}), 'alert') LOG.error(request.localizer.translate( _('"${n}" does not exist.', {'n': item.path}))) return if file_type in ('file', 'resource'): file_set.append(item.path) else: file_set.append((item.path, join(template_path, return file_set
# =============================================================================
[docs]class FrontBuild(object): """This class manages a build locally and via an agent. ``self.result`` is a dictionary with following keys: ``status``, ``log``, ``start``, ``expire``, ``project_id``, ``user_id``. At the process end, it can also have ``files``, ``values``, ``error`` and ``end`` keys. ``self.result['log']`` is a list of tuples such as ``(timestamp, step, percent, message)``. ``self.result['expire']`` is the date beyond which the build is destroyed. ``self.key`` is a key to authenticate transaction between front and agent. """ # pylint: disable = R0902, R0913 # ------------------------------------------------------------------------- def __init__(self, build_manager, build_id, user_id, lang, processing, pack): """Constructor method. :param build_manager: (:class:`FrontBuildManager` instance) Application :class:`FrontBuildManager` object. :param build_id: (string) Build ID. :param user_id: (integer) ID of owner. :param lang: (string) Language of owner. :param processing: (dictionary) A processing dictionary. :param pack: (dictionary) A pack dictionary. """ self.uid = build_id self.agent_url = None self.agent_id = '' self._build_manager = build_manager self._lang = lang self._processing = processing self._pack = pack self._thread = None self._key = str(randint(1000, 9999999)) self.expire = time() + build_manager.build_ttl self.result = { 'status': 'none', 'log': [(time(), 'wait', 1, self._translate(_('waiting...')))], 'project_id': pack['project_id'], 'user_id': user_id, 'output': processing['output']} # -------------------------------------------------------------------------
[docs] def start(self, request): """Start a build in a thread. :param request: (:class:`pyramid.request.Request` instance) Current request. :return: (boolean) """ if self._thread is not None: return True # Find agent self.agent_url, self.agent_id = self._build_manager.find_agent( request, self._processing['processor_id']) if self.agent_url is None: return False # Prepare synchronization if self.agent_url: if request, self.agent_url, 'synchronizing', self.uid)[0]: return False # Create thread self._thread = Thread( target=self._thread_start, kwargs={'request': request}) self.result['log'] = [ (time(), 'start', 1, self._translate(_('startup')))] try: self._thread.start() except RuntimeError as error: request, self.agent_url, 'synchronizing', self.uid, False) self.stopped(error, 'a_warn') return False return True
# -------------------------------------------------------------------------
[docs] def progress(self, request): """Return the progress of build. :param request: (:class:`pyramid.request.Request` instance) Current request. :return: (tuple) A tuple such as ``(<step>, <percent>, <message>, <start_time>, <agent_id)>)``. """ if self.result['log'][-1][1][0:2] != 'a_': return self.result['log'][-1][1:] \ + (self.result['log'][0][0], self.agent_id) error, prgrss = request, self.agent_url, 'progress', self.uid) if error: self.stopped(error.decode('utf8'), 'a_error') return self.result['log'][-1][1:] \ + (self.result['log'][0][0], self.agent_id) if prgrss[0] == 'none': self.stopped(_('agent build destroyed')) prgrss = self.result['log'][-1][1:] elif prgrss[0] in ('a_end', 'a_stop', 'a_fatal'): self.complete(request, self._key) prgrss = self.result['log'][-1][1:] return tuple(prgrss) + (self.result['log'][0][0], self.agent_id)
# -------------------------------------------------------------------------
[docs] def complete(self, request, key): """Start a *complete* action in a thread. :param request: (object) WebOb request object. :param key: (string) Authentication key. :return: (boolean) ``True`` if succeeds. """ if self.result['log'][-1][1][0:2] != 'a_' or self._key != key or \ (self._thread is not None and self._thread.is_alive()): return False self._log(_('getting log'), 'get', 91) # Update request user_id = int(self.result['user_id']) if 'user_id' not in request.session \ or request.session['user_id'] != user_id: user = DBSession.query(User).filter_by(user_id=user_id).first() if user is None: self.stopped(_('unknown user')) DBSession.close() return False user.setup_environment(request) # Get result result = self._get_result(request) if result is None: DBSession.close() return False # Error or warning? warning = False for log in self.result['log']: if log[1] in ('error', 'a_error'): self.stopped(_('error occurred')) self._move2task(request, True) DBSession.close() return False elif log[1] in ('warn', 'a_warn'): warning = True # Transfer result if 'values' in result: self.result['values'] = result['values'] if 'files' in result: self.result['files'] = result['files'] # Download output directory in storage if self.result.get('files') and self._processing['output']: self._output2storage(request) if self.stopped(): del self.result['files'] self._move2task(request, True) DBSession.close() return False elif self.result.get('files') and \ self._processing['add2pack'][:6] == 'result': self._result2pack('', self.result.get('files')) # End self.result['message'] = not warning and _('Successfully completed') \ or _('Successfully completed but with warnings') self.result['status'] = 'end' self._log(self.result['message'], 'end', 100) self._move2task(request) DBSession.close() return True
# -------------------------------------------------------------------------
[docs] def stop(self, request=None): """Stop building.""" if request is not None and self.result['log'][-1][1][0:2] == 'a_': error = request, self.agent_url, 'stop', self.uid)[0] if error: self.stopped(error.decode('utf8')) elif not self.stopped(): if self.result['log'][-1][1] == 'sync': request, self.agent_url, 'synchronizing', self.uid, False) self._log(_('stopped'), 'stop', 100) self.result['message'] = _('Stopped by user') self.result['status'] = 'stop'
# -------------------------------------------------------------------------
[docs] def stopped(self, error=None, level='fatal'): """Check if there is a fatal error and if the build is stopped. :param error: (string, optional) Error message. :param level: (string, default='fatal') Error level: ``warn``, ``error`` or ``fatal``. :return: (boolean) ``True`` if it is stopped. """ if error: if level == 'fatal': self.result['status'] = level self.result['message'] = error self._log(error, level, 100) return self.result['status'] in ('stop', 'fatal', 'end')
# ------------------------------------------------------------------------- def _log(self, message, step=None, percent=None): """Append an entry to ``result['log']``. :param message: (string) Message to write to the log. :param step: (string, optional) If not ``None``, progress is updated. :param percent: (int, optional) Percent of progress for step ``<step>``. ``self.result['log']`` is a list of tuples such as ``(<timestamp>, <step>, <percent>, <message>)``. """ if percent is None: percent = self.result['log'][-1][2] if step is None else 0 if step is None: step = self.result['log'][-1][1] self.result['log'].append( (time(), step, percent, self._translate(message))) # ------------------------------------------------------------------------- def _thread_start(self, request): """Action launched in a thread to start a build. :param request: (:class:`pyramid.request.Request` instance) Current request. """ # Synchronize storages with buildspaces self.expire = time() + self._build_manager.build_ttl if self.agent_url: self._storage2buildspace(request) self._build_manager.start_waiting(request) if self.stopped(): return # Start build self.expire = time() + self._build_manager.build_ttl end_url = request.route_url( 'build_complete', build_id=self.uid, key=self._key) if self.agent_url: self._log( _('call agent "${a}"', {'a': self.agent_id}), 'a_call', 1) else: self._log(_('call local agent'), 'a_call', 1) error = request, self.agent_url, 'start', self.uid, self._processing, self._pack, end_url)[0] self.stopped(error) # ------------------------------------------------------------------------- def _storage2buildspace(self, request): """Synchronize storages on front with buildspaces on agent. :param request: (:class:`pyramid.request.Request` instance) Current request. """ # Make list of files to synchronize file_list = list(self._processing['resources']) \ + [k[0] for k in self._processing['templates']] \ + list(self._pack['files']) \ + list(self._pack['resources']) \ + [k[0] for k in self._pack['templates']] total = len(file_list) # Browse names and synchronize self._log(_('synchronization'), 'sync', 1) for index, name in enumerate(file_list): self._log( _('agent "${a}" synchronizing of ${n}', {'a': self.agent_id, 'n': name}), 'sync', max(90 * index / total, 1)) fullname = join(request.registry.settings['storage.root'], name) if not exists(fullname): continue if isfile(fullname): self._file2buildspace(request, name) else: self._dir2buildspace(request, name) if self.stopped(): return self._log(_('synchronization completed'), 'syncend', 90) # ------------------------------------------------------------------------- def _dir2buildspace(self, request, directory): """Synchronize a directory in storage on front with its copy in buildspace on agent. :param request: (:class:`pyramid.request.Request` instance) Current request. :param directory: (string) Relative path to storage directory of directory to synchronize. """ # Get directory content fullpath = join( request.registry.settings['storage.root'], directory) file_list = [] for path, dirs, files in walk(fullpath): for name in set(dirs) & set(EXCLUDED_FILES): dirs.remove(name) for name in files: file_list.append(relpath(join(path, name), fullpath)) # In destination, remove deleted files error = request, self.agent_url, 'buildspace_cleanup', directory, file_list)[0] if self.stopped(error): return # Synchronize files for name in file_list: self._file2buildspace(request, join(directory, name)) if self.stopped(): return # ------------------------------------------------------------------------- def _file2buildspace(self, request, filename): """Synchronize a file in storage on front with its copy in buildspace on agent. :param request: (:class:`pyramid.request.Request` instance) Current request. :param filename: (string) Relative path to storage directory of file to synchronize. """ # Get file signature error, sig = request, self.agent_url, 'buildspace_send_signature', filename) if self.stopped(error): return stg_path = request.registry.settings['storage.root'] # Transfer delta with open(join(stg_path, filename), 'rb') as hdl: delta_file = DeltaFile(, hdl) delta_buf = delta_file.close() if len(delta_buf) < 512 or self.stopped(): return error = request, self.agent_url, 'buildspace_receive_delta', filename, xmlrpclib.Binary(delta_buf))[0] self.stopped(error) # ------------------------------------------------------------------------- def _output2storage(self, request): """Copy output on agent in storage on front. :param request: (:class:`pyramid.request.Request` instance) Current request. """ # Authorized? storage, root, user = self._storage4output(request) if storage is None: return # Local agent if not self.agent_url: output_dir = join( request.registry.settings['build.root'], camel_case(self.uid), 'Output') if not exists(output_dir): self.stopped(_('Output directory has been destroyed.')) return files = output_dir copy_content(output_dir, root) # Remote agent else: self._log(_('getting files from "${a}"', {'a': self.agent_id}), 'sync', 92) error, files = request, self.agent_url, 'output_list', self.uid) if self.stopped(error) or not len(files): return total = len(files) for index, filename in enumerate(files): self._log(_('getting ${f}', {'f': filename}), 'sync', 93 + 6 * index / total) self._file2storage(request, root, filename) if self.stopped(): return # Add in VCS handler = request.registry['handler'].get_handler( storage.storage_id, storage) if storage.vcs_engine != 'none': message = self._processing['label'] handler.add( (user and user.vcs_user or None, user and decrypt( user.vcs_password, request.registry.settings.get('encryption', '-')), request.session['name']), self._processing['output'].partition(sep)[2], message) error, message = handler.progress() if error == 'error': self.stopped(message) handler.cache.clear() # Add to pack if not self.stopped() and self._processing['add2pack']: self._result2pack( relpath(root, request.registry.settings['storage.root']), files) if not self.stopped(): self._log(_('result received'), 'get', 99) # ------------------------------------------------------------------------- def _file2storage(self, request, root, filename): """Synchronize a file in build directory on agent with one in storage on front. :param request: (:class:`pyramid.request.Request` instance) Current request. :param root: (string) Absolute root path for file to synchronize. :param filename: (string) Name of the file to synchronize. """ fullname = normpath(join(root, filename)) if not fullname.startswith(root): self.stopped(_('Access was denied to this resource.')) return if not exists(dirname(fullname)): makedirs(dirname(fullname)) if not exists(fullname): with open(fullname, 'w') as hdl: hdl.write('') # Transfer delta sig_file = SigFile(open(fullname, 'rb'), get_block_size(fullname)) sig_buf = sig_file.close() error, delta = request, self.agent_url, 'output_send_delta', self.uid, filename, xmlrpclib.Binary(sig_buf)) if self.stopped(error): return # Patch patch_file = PatchedFile(open(fullname, 'rb'), StringIO( temp_name = '%s~%d~' % (fullname, randint(1, 999999)) with open(temp_name, 'wb') as hdl: hdl.write( patch_file.close() if exists(temp_name): rename(temp_name, fullname) # ------------------------------------------------------------------------- def _get_result(self, request): """Get the result dictionnary from the agent. :param request: (:class:`pyramid.request.Request` instance) Current request. :return: (dictionary or ``None``) """ error, result = request, self.agent_url, 'result', self.uid) if self.stopped(error): self._move2task(request, True) return self.result['log'][-1:1] += result['log'] if result['status'] == 'none': self.stopped(_('agent build destroyed')) self._move2task(request, True) return elif result['status'] != 'a_end': self.result['status'] = result['status'][2:] self.result['message'] = result['message'] self._move2task(request, True) return return result # ------------------------------------------------------------------------- def _storage4output(self, request): """Get the corresponding storage of an output if exists and if user is authorized. :param request: (:class:`pyramid.request.Request` instance) Current request. :return: (tuple) A tuple such as ``(storage, root, user)`` where ``storage`` is a :class:`~.models.storages.Storage` object, ``root`` the absolute root path for files to transfer and ``user`` a :class:`` object. """ # Root path storage_root = normpath(request.registry.settings['storage.root']) root = normpath(join(storage_root, self._processing['output'])) if not root.startswith(storage_root): self.stopped(_('Access was denied to this resource.')) return None, None, None # Storage storage_id = self._processing['output'].partition(sep)[0] try: storage = current_storage(request, storage_id, False)[0] except HTTPNotFound: self.stopped(_('This storage does not exist!')) return None, None, None except HTTPForbidden: self.stopped(_('You do not have access to this storage!')) return None, None, None if request.session['storage']['perm'] != 'writer': self.stopped(_('You cannot write into this storage!')) return None, None, None # Storage user user = DBSession.query(StorageUser).filter_by( storage_id=storage_id, user_id=request.session['user_id']).first() if storage.vcs_engine not in ('none', 'local') \ and not (user and user.vcs_user): self.stopped(_('ID and password for storage are missing.')) return None, None, None return storage, root, user # ------------------------------------------------------------------------- def _result2pack(self, base, result): """Add result to pack. :param base: (string) Base root for files to add. :param result: (string or list) Output directory where files are stored or list of files to add. """ pack = DBSession.query(Pack).filter_by( project_id=self._pack['project_id'], pack_id=self._pack['pack_id']).first() if pack is None: return # File list packing = {} mode = self._processing['add2pack'] if mode[:6] == 'result' or mode == 'smart': packing[mode == 'smart' and 'file' or mode[7:-1]] = \ sorted(self.result.get('files')) if (mode[:6] == 'output' or mode == 'smart') and not self.agent_url: done = mode == 'smart' and set(self.result.get('files')) or tuple() mode = mode == 'smart' and 'resource' or mode[7:-1] packing[mode] = [] for path, name, files in walk(result): path = path.decode('utf8') for name in sorted(files): if name not in EXCLUDED_FILES and '~' not in name \ and relpath(join(path, name), result) not in done: packing[mode].append(relpath(join(path, name), result)) if (mode[:6] == 'output' or mode == 'smart') and self.agent_url: done = mode == 'smart' and set(self.result.get('files')) or () mode = mode == 'smart' and 'resource' or mode[7:-1] packing[mode] = [] for name in sorted(result): if name not in EXCLUDED_FILES and '~' not in name \ and name not in done: packing[mode].append(name) # Add to database for mode in packing: done = set([k.path for k in pack.files if k.file_type == mode]) for name in packing[mode]: name = join(base, name) if name not in done: pack.files.append(PackFile(mode, name)) pack.updated = pack.update_sort() DBSession.commit() self._log( _('result added to pack (${t})', { 't': self._translate( ADD2PACK_TARGETS[self._processing['add2pack']])}), 'get', 99) # ------------------------------------------------------------------------- def _move2task(self, request, error=False): """According to ``error``, move managed pack to new task. :param request: (:class:`pyramid.request.Request` instance) Current request. :param error: (boolean, default=False) ``True`` if error. """ target_task_id = (error and self._pack['task_ko']) \ or (not error and self._pack['task_ok'].partition('#')[0]) or None if not target_task_id and not error: return link_type = error and 'back' or self._pack['task_ok'].partition('#')[2] pack = DBSession.query(Pack).filter_by( project_id=self._pack['project_id'], pack_id=self._pack['pack_id']).first() if pack is not None: pack2task(request, pack, link_type, target_task_id) # ------------------------------------------------------------------------- def _translate(self, text): """Return ``text`` translated. :param text: (string) Text to translate. """ return localizer(self._lang or 'en').translate(text)