bin/service/web_services.py

   1 # -*- coding: utf-8 -*-
   2 ##############################################################################
   3 #
   4 #    OpenERP, Open Source Management Solution
   5 #    Copyright (C) 2004-2009 Tiny SPRL (<http://tiny.be>).
   6 #
   7 #    This program is free software: you can redistribute it and/or modify
   8 #    it under the terms of the GNU Affero General Public License as
   9 #    published by the Free Software Foundation, either version 3 of the
  10 #    License, or (at your option) any later version.
  11 #
  12 #    This program is distributed in the hope that it will be useful,
  13 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 #    GNU Affero General Public License for more details.
  16 #
  17 #    You should have received a copy of the GNU Affero General Public License
  18 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20 ##############################################################################
  21
  22 import base64
  23 import logging
  24 import os
  25 import security
  26 import thread
  27 import threading
  28 import time
  29 import sys
  30 import platform
  31 from tools.translate import _
  32 import addons
  33 import ir
  34 import netsvc
  35 import pooler
  36 import release
  37 import sql_db
  38 import tools
  39 import locale
  40 from cStringIO import StringIO
  41
  42 logging.basicConfig()
  43
  44 class db(netsvc.ExportService):
  45     def __init__(self, name="db"):
  46         netsvc.ExportService.__init__(self, name)
  47         self.joinGroup("web-services")
  48         self.actions = {}
  49         self.id = 0
  50         self.id_protect = threading.Semaphore()
  51
  52         self._pg_psw_env_var_is_set = False # on win32, pg_dump need the PGPASSWORD env var
  53
  54     def dispatch(self, method, auth, params):
  55         if method in [ 'create', 'get_progress', 'drop', 'dump',
  56             'restore', 'rename',
  57             'change_admin_password', 'migrate_databases' ]:
  58             passwd = params[0]
  59             params = params[1:]
  60             security.check_super(passwd)
  61         elif method in [ 'db_exist', 'list', 'list_lang', 'server_version' ]:
  62             # params = params
  63             # No security check for these methods
  64             pass
  65         else:
  66             raise KeyError("Method not found: %s" % method)
  67         fn = getattr(self, 'exp_'+method)
  68         return fn(*params)
  69
  70     def new_dispatch(self,method,auth,params):
  71         pass
  72     def _create_empty_database(self, name):
  73         db = sql_db.db_connect('template1')
  74         cr = db.cursor()
  75         try:
  76             cr.autocommit(True) # avoid transaction block
  77             cr.execute("""CREATE DATABASE "%s" ENCODING 'unicode' TEMPLATE "template0" """ % name)
  78         finally:
  79             cr.close()
  80
  81     def exp_create(self, db_name, demo, lang, user_password='admin'):
  82         self.id_protect.acquire()
  83         self.id += 1
  84         id = self.id
  85         self.id_protect.release()
  86
  87         self.actions[id] = {'clean': False}
  88
  89         self._create_empty_database(db_name)
  90
  91         class DBInitialize(object):
  92             def __call__(self, serv, id, db_name, demo, lang, user_password='admin'):
  93                 cr = None
  94                 try:
  95                     serv.actions[id]['progress'] = 0
  96                     cr = sql_db.db_connect(db_name).cursor()
  97                     tools.init_db(cr)
  98                     cr.commit()
  99                     cr.close()
 100                     cr = None
 101                     pool = pooler.restart_pool(db_name, demo, serv.actions[id],
 102                             update_module=True)[1]
 103
 104                     cr = sql_db.db_connect(db_name).cursor()
 105
 106                     if lang:
 107                         modobj = pool.get('ir.module.module')
 108                         mids = modobj.search(cr, 1, [('state', '=', 'installed')])
 109                         modobj.update_translations(cr, 1, mids, lang)
 110
 111                     cr.execute('UPDATE res_users SET password=%s, context_lang=%s, active=True WHERE login=%s', (
 112                         user_password, lang, 'admin'))
 113                     cr.execute('SELECT login, password, name ' \
 114                                '  FROM res_users ' \
 115                                ' ORDER BY login')
 116                     serv.actions[id]['users'] = cr.dictfetchall()
 117                     serv.actions[id]['clean'] = True
 118                     cr.commit()
 119                     cr.close()
 120                 except Exception, e:
 121                     serv.actions[id]['clean'] = False
 122                     serv.actions[id]['exception'] = e
 123                     import traceback
 124                     e_str = StringIO()
 125                     traceback.print_exc(file=e_str)
 126                     traceback_str = e_str.getvalue()
 127                     e_str.close()
 128                     netsvc.Logger().notifyChannel('web-services', netsvc.LOG_ERROR, 'CREATE DATABASE\n%s' % (traceback_str))
 129                     serv.actions[id]['traceback'] = traceback_str
 130                     if cr:
 131                         cr.close()
 132         logger = netsvc.Logger()
 133         logger.notifyChannel("web-services", netsvc.LOG_INFO, 'CREATE DATABASE: %s' % (db_name.lower()))
 134         dbi = DBInitialize()
 135         create_thread = threading.Thread(target=dbi,
 136                 args=(self, id, db_name, demo, lang, user_password))
 137         create_thread.start()
 138         self.actions[id]['thread'] = create_thread
 139         return id
 140
 141     def exp_get_progress(self, id):
 142         if self.actions[id]['thread'].isAlive():
 143 #           return addons.init_progress[db_name]
 144             return (min(self.actions[id].get('progress', 0),0.95), [])
 145         else:
 146             clean = self.actions[id]['clean']
 147             if clean:
 148                 users = self.actions[id]['users']
 149                 self.actions.pop(id)
 150                 return (1.0, users)
 151             else:
 152                 e = self.actions[id]['exception']
 153                 self.actions.pop(id)
 154                 raise Exception, e
 155
 156     def exp_drop(self, db_name):
 157         sql_db.close_db(db_name)
 158         logger = netsvc.Logger()
 159
 160         db = sql_db.db_connect('template1')
 161         cr = db.cursor()
 162         cr.autocommit(True) # avoid transaction block
 163         try:
 164             try:
 165                 cr.execute('DROP DATABASE "%s"' % db_name)
 166             except Exception, e:
 167                 logger.notifyChannel("web-services", netsvc.LOG_ERROR,
 168                         'DROP DB: %s failed:\n%s' % (db_name, e))
 169                 raise Exception("Couldn't drop database %s: %s" % (db_name, e))
 170             else:
 171                 logger.notifyChannel("web-services", netsvc.LOG_INFO,
 172                     'DROP DB: %s' % (db_name))
 173         finally:
 174             cr.close()
 175         return True
 176
 177     def _set_pg_psw_env_var(self):
 178         if os.name == 'nt' and not os.environ.get('PGPASSWORD', ''):
 179             os.environ['PGPASSWORD'] = tools.config['db_password']
 180             self._pg_psw_env_var_is_set = True
 181
 182     def _unset_pg_psw_env_var(self):
 183         if os.name == 'nt' and self._pg_psw_env_var_is_set:
 184             os.environ['PGPASSWORD'] = ''
 185
 186     def exp_dump(self, db_name):
 187         logger = netsvc.Logger()
 188
 189         self._set_pg_psw_env_var()
 190
 191         cmd = ['pg_dump', '--format=c', '--no-owner']
 192         if tools.config['db_user']:
 193             cmd.append('--username=' + tools.config['db_user'])
 194         if tools.config['db_host']:
 195             cmd.append('--host=' + tools.config['db_host'])
 196         if tools.config['db_port']:
 197             cmd.append('--port=' + str(tools.config['db_port']))
 198         cmd.append(db_name)
 199
 200         stdin, stdout = tools.exec_pg_command_pipe(*tuple(cmd))
 201         stdin.close()
 202         data = stdout.read()
 203         res = stdout.close()
 204         if res:
 205             logger.notifyChannel("web-services", netsvc.LOG_ERROR,
 206                     'DUMP DB: %s failed\n%s' % (db_name, data))
 207             raise Exception, "Couldn't dump database"
 208         logger.notifyChannel("web-services", netsvc.LOG_INFO,
 209                 'DUMP DB: %s' % (db_name))
 210
 211         self._unset_pg_psw_env_var()
 212
 213         return base64.encodestring(data)
 214
 215     def exp_restore(self, db_name, data):
 216         logger = netsvc.Logger()
 217
 218         self._set_pg_psw_env_var()
 219
 220         if self.exp_db_exist(db_name):
 221             logger.notifyChannel("web-services", netsvc.LOG_WARNING,
 222                     'RESTORE DB: %s already exists' % (db_name,))
 223             raise Exception, "Database already exists"
 224
 225         self._create_empty_database(db_name)
 226
 227         cmd = ['pg_restore', '--no-owner']
 228         if tools.config['db_user']:
 229             cmd.append('--username=' + tools.config['db_user'])
 230         if tools.config['db_host']:
 231             cmd.append('--host=' + tools.config['db_host'])
 232         if tools.config['db_port']:
 233             cmd.append('--port=' + str(tools.config['db_port']))
 234         cmd.append('--dbname=' + db_name)
 235         args2 = tuple(cmd)
 236
 237         buf=base64.decodestring(data)
 238         if os.name == "nt":
 239             tmpfile = (os.environ['TMP'] or 'C:\\') + os.tmpnam()
 240             file(tmpfile, 'wb').write(buf)
 241             args2=list(args2)
 242             args2.append(' ' + tmpfile)
 243             args2=tuple(args2)
 244         stdin, stdout = tools.exec_pg_command_pipe(*args2)
 245         if not os.name == "nt":
 246             stdin.write(base64.decodestring(data))
 247         stdin.close()
 248         res = stdout.close()
 249         if res:
 250             raise Exception, "Couldn't restore database"
 251         logger.notifyChannel("web-services", netsvc.LOG_INFO,
 252                 'RESTORE DB: %s' % (db_name))
 253
 254         self._unset_pg_psw_env_var()
 255
 256         return True
 257
 258     def exp_rename(self, old_name, new_name):
 259         sql_db.close_db(old_name)
 260         logger = netsvc.Logger()
 261
 262         db = sql_db.db_connect('template1')
 263         cr = db.cursor()
 264         try:
 265             try:
 266                 cr.execute('ALTER DATABASE "%s" RENAME TO "%s"' % (old_name, new_name))
 267             except Exception, e:
 268                 logger.notifyChannel("web-services", netsvc.LOG_ERROR,
 269                         'RENAME DB: %s -> %s failed:\n%s' % (old_name, new_name, e))
 270                 raise Exception("Couldn't rename database %s to %s: %s" % (old_name, new_name, e))
 271             else:
 272                 fs = os.path.join(tools.config['root_path'], 'filestore')
 273                 if os.path.exists(os.path.join(fs, old_name)):
 274                     os.rename(os.path.join(fs, old_name), os.path.join(fs, new_name))
 275
 276                 logger.notifyChannel("web-services", netsvc.LOG_INFO,
 277                     'RENAME DB: %s -> %s' % (old_name, new_name))
 278         finally:
 279             cr.close()
 280         return True
 281
 282     def exp_db_exist(self, db_name):
 283         ## Not True: in fact, check if connection to database is possible. The database may exists
 284         return bool(sql_db.db_connect(db_name))
 285
 286     def exp_list(self):
 287         if not tools.config['list_db']:
 288             raise Exception('AccessDenied')
 289
 290         db = sql_db.db_connect('template1')
 291         cr = db.cursor()
 292         try:
 293             try:
 294                 db_user = tools.config["db_user"]
 295                 if not db_user and os.name == 'posix':
 296                     import pwd
 297                     db_user = pwd.getpwuid(os.getuid())[0]
 298                 if not db_user:
 299                     cr.execute("select decode(usename, 'escape') from pg_user where usesysid=(select datdba from pg_database where datname=%s)", (tools.config["db_name"],))
 300                     res = cr.fetchone()
 301                     db_user = res and str(res[0])
 302                 if db_user:
 303                     cr.execute("select decode(datname, 'escape') from pg_database where datdba=(select usesysid from pg_user where usename=%s) and datname not in ('template0', 'template1', 'postgres') order by datname", (db_user,))
 304                 else:
 305                     cr.execute("select decode(datname, 'escape') from pg_database where datname not in('template0', 'template1','postgres') order by datname")
 306                 res = [str(name) for (name,) in cr.fetchall()]
 307             except:
 308                 res = []
 309         finally:
 310             cr.close()
 311         res.sort()
 312         return res
 313
 314     def exp_change_admin_password(self, new_password):
 315         tools.config['admin_passwd'] = new_password
 316         tools.config.save()
 317         return True
 318
 319     def exp_list_lang(self):
 320         return tools.scan_languages()
 321
 322     def exp_server_version(self):
 323         """ Return the version of the server
 324             Used by the client to verify the compatibility with its own version
 325         """
 326         return release.version
 327
 328     def exp_migrate_databases(self,databases):
 329
 330         from osv.orm import except_orm
 331         from osv.osv import except_osv
 332
 333         l = netsvc.Logger()
 334         for db in databases:
 335             try:
 336                 l.notifyChannel('migration', netsvc.LOG_INFO, 'migrate database %s' % (db,))
 337                 tools.config['update']['base'] = True
 338                 pooler.restart_pool(db, force_demo=False, update_module=True)
 339             except except_orm, inst:
 340                 self.abortResponse(1, inst.name, 'warning', inst.value)
 341             except except_osv, inst:
 342                 self.abortResponse(1, inst.name, inst.exc_type, inst.value)
 343             except Exception:
 344                 import traceback
 345                 tb_s = reduce(lambda x, y: x+y, traceback.format_exception( sys.exc_type, sys.exc_value, sys.exc_traceback))
 346                 l.notifyChannel('web-services', netsvc.LOG_ERROR, tb_s)
 347                 raise
 348         return True
 349 db()
 350
 351 class _ObjectService(netsvc.ExportService):
 352      "A common base class for those who have fn(db, uid, password,...) "
 353
 354      def common_dispatch(self, method, auth, params):
 355         (db, uid, passwd ) = params[0:3]
 356         params = params[3:]
 357         security.check(db,uid,passwd)
 358         cr = pooler.get_db(db).cursor()
 359         fn = getattr(self, 'exp_'+method)
 360         res = fn(cr, uid, *params)
 361         cr.commit()
 362         cr.close()
 363         return res
 364
 365 class common(_ObjectService):
 366     def __init__(self,name="common"):
 367         _ObjectService.__init__(self,name)
 368         self.joinGroup("web-services")
 369
 370     def dispatch(self, method, auth, params):
 371         logger = netsvc.Logger()
 372         if method in [ 'ir_set','ir_del', 'ir_get' ]:
 373             return self.common_dispatch(method,auth,params)
 374         if method == 'login':
 375             # At this old dispatcher, we do NOT update the auth proxy
 376             res = security.login(params[0], params[1], params[2])
 377             msg = res and 'successful login' or 'bad login or password'
 378             # TODO log the client ip address..
 379             logger.notifyChannel("web-service", netsvc.LOG_INFO, "%s from '%s' using database '%s'" % (msg, params[1], params[0].lower()))
 380             return res or False
 381         elif method == 'logout':
 382             if auth:
 383                 auth.logout(params[1])
 384             logger.notifyChannel("web-service", netsvc.LOG_INFO,'Logout %s from database %s'%(login,db))
 385             return True
 386         elif method in ['about', 'timezone_get', 'get_server_environment',
 387                         'login_message','get_stats', 'check_connectivity']:
 388             pass
 389         elif method in ['get_available_updates', 'get_migration_scripts', 'set_loglevel']:
 390             passwd = params[0]
 391             params = params[1:]
 392             security.check_super(passwd)
 393         else:
 394             raise Exception("Method not found: %s" % method)
 395
 396         fn = getattr(self, 'exp_'+method)
 397         return fn(*params)
 398
 399
 400     def new_dispatch(self,method,auth,params):
 401         pass
 402
 403     def exp_ir_set(self, cr, uid, keys, args, name, value, replace=True, isobject=False):
 404         res = ir.ir_set(cr,uid, keys, args, name, value, replace, isobject)
 405         return res
 406
 407     def exp_ir_del(self, cr, uid, id):
 408         res = ir.ir_del(cr,uid, id)
 409         return res
 410
 411     def exp_ir_get(self, cr, uid, keys, args=None, meta=None, context=None):
 412         if not args:
 413             args=[]
 414         if not context:
 415             context={}
 416         res = ir.ir_get(cr,uid, keys, args, meta, context)
 417         return res
 418
 419     def exp_about(self, extended=False):
 420         """Return information about the OpenERP Server.
 421
 422         @param extended: if True then return version info
 423         @return string if extended is False else tuple
 424         """
 425
 426         info = _('''
 427
 428 OpenERP is an ERP+CRM program for small and medium businesses.
 429
 430 The whole source code is distributed under the terms of the
 431 GNU Public Licence.
 432
 433 (c) 2003-TODAY, Fabien Pinckaers - Tiny sprl''')
 434
 435         if extended:
 436             return info, release.version
 437         return info
 438
 439     def exp_timezone_get(self, db, login, password):
 440         #timezone detection is safe in multithread, so lazy init is ok here
 441         if (not tools.config['timezone']):
 442             tools.config['timezone'] = tools.misc.detect_server_timezone()
 443         return tools.config['timezone']
 444
 445
 446     def exp_get_available_updates(self, contract_id, contract_password):
 447         import tools.maintenance as tm
 448         try:
 449             rc = tm.remote_contract(contract_id, contract_password)
 450             if not rc.id:
 451                 raise tm.RemoteContractException('This contract does not exist or is not active')
 452
 453             return rc.get_available_updates(rc.id, addons.get_modules_with_version())
 454
 455         except tm.RemoteContractException, e:
 456             self.abortResponse(1, 'Migration Error', 'warning', str(e))
 457
 458
 459     def exp_get_migration_scripts(self, contract_id, contract_password):
 460         l = netsvc.Logger()
 461         import tools.maintenance as tm
 462         try:
 463             rc = tm.remote_contract(contract_id, contract_password)
 464             if not rc.id:
 465                 raise tm.RemoteContractException('This contract does not exist or is not active')
 466             if rc.status != 'full':
 467                 raise tm.RemoteContractException('Can not get updates for a partial contract')
 468
 469             l.notifyChannel('migration', netsvc.LOG_INFO, 'starting migration with contract %s' % (rc.name,))
 470
 471             zips = rc.retrieve_updates(rc.id, addons.get_modules_with_version())
 472
 473             from shutil import rmtree, copytree, copy
 474
 475             backup_directory = os.path.join(tools.config['root_path'], 'backup', time.strftime('%Y-%m-%d-%H-%M'))
 476             if zips and not os.path.isdir(backup_directory):
 477                 l.notifyChannel('migration', netsvc.LOG_INFO, 'create a new backup directory to \
 478                                 store the old modules: %s' % (backup_directory,))
 479                 os.makedirs(backup_directory)
 480
 481             for module in zips:
 482                 l.notifyChannel('migration', netsvc.LOG_INFO, 'upgrade module %s' % (module,))
 483                 mp = addons.get_module_path(module)
 484                 if mp:
 485                     if os.path.isdir(mp):
 486                         copytree(mp, os.path.join(backup_directory, module))
 487                         if os.path.islink(mp):
 488                             os.unlink(mp)
 489                         else:
 490                             rmtree(mp)
 491                     else:
 492                         copy(mp + 'zip', backup_directory)
 493                         os.unlink(mp + '.zip')
 494
 495                 try:
 496                     try:
 497                         base64_decoded = base64.decodestring(zips[module])
 498                     except:
 499                         l.notifyChannel('migration', netsvc.LOG_ERROR, 'unable to read the module %s' % (module,))
 500                         raise
 501
 502                     zip_contents = StringIO(base64_decoded)
 503                     zip_contents.seek(0)
 504                     try:
 505                         try:
 506                             tools.extract_zip_file(zip_contents, tools.config['addons_path'] )
 507                         except:
 508                             l.notifyChannel('migration', netsvc.LOG_ERROR, 'unable to extract the module %s' % (module, ))
 509                             rmtree(module)
 510                             raise
 511                     finally:
 512                         zip_contents.close()
 513                 except:
 514                     l.notifyChannel('migration', netsvc.LOG_ERROR, 'restore the previous version of the module %s' % (module, ))
 515                     nmp = os.path.join(backup_directory, module)
 516                     if os.path.isdir(nmp):
 517                         copytree(nmp, tools.config['addons_path'])
 518                     else:
 519                         copy(nmp+'.zip', tools.config['addons_path'])
 520                     raise
 521
 522             return True
 523         except tm.RemoteContractException, e:
 524             self.abortResponse(1, 'Migration Error', 'warning', str(e))
 525         except Exception, e:
 526             import traceback
 527             tb_s = reduce(lambda x, y: x+y, traceback.format_exception( sys.exc_type, sys.exc_value, sys.exc_traceback))
 528             l.notifyChannel('migration', netsvc.LOG_ERROR, tb_s)
 529             raise
 530
 531     def exp_get_server_environment(self):
 532         os_lang = '.'.join( [x for x in locale.getdefaultlocale() if x] )
 533         if not os_lang:
 534             os_lang = 'NOT SET'
 535         environment = '\nEnvironment Information : \n' \
 536                      'System : %s\n' \
 537                      'OS Name : %s\n' \
 538                      %(platform.platform(), platform.os.name)
 539         if os.name == 'posix':
 540           if platform.system() == 'Linux':
 541              lsbinfo = os.popen('lsb_release -a').read()
 542              environment += '%s'%(lsbinfo)
 543           else:
 544              environment += 'Your System is not lsb compliant\n'
 545         environment += 'Operating System Release : %s\n' \
 546                     'Operating System Version : %s\n' \
 547                     'Operating System Architecture : %s\n' \
 548                     'Operating System Locale : %s\n'\
 549                     'Python Version : %s\n'\
 550                     'OpenERP-Server Version : %s'\
 551                     %(platform.release(), platform.version(), platform.architecture()[0],
 552                       os_lang, platform.python_version(),release.version)
 553         return environment
 554
 555     def exp_login_message(self):
 556         return tools.config.get('login_message', False)
 557
 558     def exp_set_loglevel(self,loglevel):
 559         l = netsvc.Logger()
 560         l.set_loglevel(int(loglevel))
 561         return True
 562
 563     def exp_get_stats(self):
 564         import threading
 565         res = "OpenERP server: %d threads\n" % threading.active_count()
 566         res += netsvc.Server.allStats()
 567         return res
 568
 569     def exp_check_connectivity(self):
 570         return bool(sql_db.db_connect('template1'))
 571
 572 common()
 573
 574 class objects_proxy(netsvc.ExportService):
 575     def __init__(self, name="object"):
 576         netsvc.ExportService.__init__(self,name)
 577         self.joinGroup('web-services')
 578
 579     def dispatch(self, method, auth, params):
 580         (db, uid, passwd ) = params[0:3]
 581         params = params[3:]
 582         if method not in ['execute','exec_workflow','obj_list']:
 583             raise KeyError("Method not supported %s" % method)
 584         security.check(db,uid,passwd)
 585         ls = netsvc.LocalService('object_proxy')
 586         fn = getattr(ls, method)
 587         res = fn(db, uid, *params)
 588         return res
 589
 590
 591     def new_dispatch(self,method,auth,params):
 592         pass
 593
 594 objects_proxy()
 595
 596
 597 #
 598 # Wizard ID: 1
 599 #    - None = end of wizard
 600 #
 601 # Wizard Type: 'form'
 602 #    - form
 603 #    - print
 604 #
 605 # Wizard datas: {}
 606 # TODO: change local request to OSE request/reply pattern
 607 #
 608 class wizard(netsvc.ExportService):
 609     def __init__(self, name='wizard'):
 610         netsvc.ExportService.__init__(self,name)
 611         self.joinGroup('web-services')
 612         self.id = 0
 613         self.wiz_datas = {}
 614         self.wiz_name = {}
 615         self.wiz_uid = {}
 616
 617     def dispatch(self, method, auth, params):
 618         (db, uid, passwd ) = params[0:3]
 619         params = params[3:]
 620         if method not in ['execute','create']:
 621             raise KeyError("Method not supported %s" % method)
 622         security.check(db,uid,passwd)
 623         fn = getattr(self, 'exp_'+method)
 624         res = fn(db, uid, *params)
 625         return res
 626
 627     def new_dispatch(self,method,auth,params):
 628         pass
 629
 630     def _execute(self, db, uid, wiz_id, datas, action, context):
 631         self.wiz_datas[wiz_id].update(datas)
 632         wiz = netsvc.LocalService('wizard.'+self.wiz_name[wiz_id])
 633         return wiz.execute(db, uid, self.wiz_datas[wiz_id], action, context)
 634
 635     def exp_create(self, db, uid, wiz_name, datas=None):
 636         if not datas:
 637             datas={}
 638 #FIXME: this is not thread-safe
 639         self.id += 1
 640         self.wiz_datas[self.id] = {}
 641         self.wiz_name[self.id] = wiz_name
 642         self.wiz_uid[self.id] = uid
 643         return self.id
 644
 645     def exp_execute(self, db, uid, wiz_id, datas, action='init', context=None):
 646         if not context:
 647             context={}
 648
 649         if wiz_id in self.wiz_uid:
 650             if self.wiz_uid[wiz_id] == uid:
 651                 return self._execute(db, uid, wiz_id, datas, action, context)
 652             else:
 653                 raise Exception, 'AccessDenied'
 654         else:
 655             raise Exception, 'WizardNotFound'
 656 wizard()
 657
 658 #
 659 # TODO: set a maximum report number per user to avoid DOS attacks
 660 #
 661 # Report state:
 662 #     False -> True
 663 #
 664
 665 class ExceptionWithTraceback(Exception):
 666     def __init__(self, msg, tb):
 667         self.message = msg
 668         self.traceback = tb
 669         self.args = (msg, tb)
 670
 671 class report_spool(netsvc.ExportService):
 672     def __init__(self, name='report'):
 673         netsvc.ExportService.__init__(self, name)
 674         self.joinGroup('web-services')
 675         self._reports = {}
 676         self.id = 0
 677         self.id_protect = threading.Semaphore()
 678
 679     def dispatch(self, method, auth, params):
 680         (db, uid, passwd ) = params[0:3]
 681         params = params[3:]
 682         if method not in ['report','report_get']:
 683             raise KeyError("Method not supported %s" % method)
 684         security.check(db,uid,passwd)
 685         fn = getattr(self, 'exp_' + method)
 686         res = fn(db, uid, *params)
 687         return res
 688
 689
 690     def new_dispatch(self,method,auth,params):
 691         pass
 692
 693     def exp_report(self, db, uid, object, ids, datas=None, context=None):
 694         if not datas:
 695             datas={}
 696         if not context:
 697             context={}
 698
 699         self.id_protect.acquire()
 700         self.id += 1
 701         id = self.id
 702         self.id_protect.release()
 703
 704         self._reports[id] = {'uid': uid, 'result': False, 'state': False, 'exception': None}
 705
 706         def go(id, uid, ids, datas, context):
 707             cr = pooler.get_db(db).cursor()
 708             import traceback
 709             import sys
 710             try:
 711                 obj = netsvc.LocalService('report.'+object)
 712                 (result, format) = obj.create(cr, uid, ids, datas, context)
 713                 if not result:
 714                     tb = sys.exc_info()
 715                     self._reports[id]['exception'] = ExceptionWithTraceback('RML is not available at specified location or not enough data to print!', tb)
 716                 self._reports[id]['result'] = result
 717                 self._reports[id]['format'] = format
 718                 self._reports[id]['state'] = True
 719             except Exception, exception:
 720
 721                 tb = sys.exc_info()
 722                 tb_s = "".join(traceback.format_exception(*tb))
 723                 logger = netsvc.Logger()
 724                 logger.notifyChannel('web-services', netsvc.LOG_ERROR,
 725                         'Exception: %s\n%s' % (str(exception), tb_s))
 726                 self._reports[id]['exception'] = ExceptionWithTraceback(tools.exception_to_unicode(exception), tb)
 727                 self._reports[id]['state'] = True
 728             cr.commit()
 729             cr.close()
 730             return True
 731
 732         thread.start_new_thread(go, (id, uid, ids, datas, context))
 733         return id
 734
 735     def _check_report(self, report_id):
 736         result = self._reports[report_id]
 737         if result['exception']:
 738             raise result['exception']
 739         res = {'state': result['state']}
 740         if res['state']:
 741             if tools.config['reportgz']:
 742                 import zlib
 743                 res2 = zlib.compress(result['result'])
 744                 res['code'] = 'zlib'
 745             else:
 746                 #CHECKME: why is this needed???
 747                 if isinstance(result['result'], unicode):
 748                     res2 = result['result'].encode('latin1', 'replace')
 749                 else:
 750                     res2 = result['result']
 751             if res2:
 752                 res['result'] = base64.encodestring(res2)
 753             res['format'] = result['format']
 754             del self._reports[report_id]
 755         return res
 756
 757     def exp_report_get(self, db, uid, report_id):
 758
 759         if report_id in self._reports:
 760             if self._reports[report_id]['uid'] == uid:
 761                 return self._check_report(report_id)
 762             else:
 763                 raise Exception, 'AccessDenied'
 764         else:
 765             raise Exception, 'ReportNotFound'
 766
 767 report_spool()
 768
 769
 770 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
 771