git.maemo.org Git - gc-dialer/blob - src/session.py

   1 import os
   2 import time
   3 import logging
   4
   5 try:
   6         import cPickle
   7         pickle = cPickle
   8 except ImportError:
   9         import pickle
  10
  11 from PyQt4 import QtCore
  12
  13 from util import qore_utils
  14 from util import concurrent
  15 from util import misc as misc_utils
  16
  17 import constants
  18 from backends import gv_backend
  19
  20
  21 _moduleLogger = logging.getLogger(__name__)
  22
  23
  24 class _DraftContact(object):
  25
  26         def __init__(self, title, description, numbersWithDescriptions):
  27                 self.title = title
  28                 self.description = description
  29                 self.numbers = numbersWithDescriptions
  30                 self.selectedNumber = numbersWithDescriptions[0][0]
  31
  32
  33 class Draft(QtCore.QObject):
  34
  35         sendingMessage = QtCore.pyqtSignal()
  36         sentMessage = QtCore.pyqtSignal()
  37         calling = QtCore.pyqtSignal()
  38         called = QtCore.pyqtSignal()
  39         cancelling = QtCore.pyqtSignal()
  40         cancelled = QtCore.pyqtSignal()
  41         error = QtCore.pyqtSignal(str)
  42
  43         recipientsChanged = QtCore.pyqtSignal()
  44
  45         def __init__(self, pool):
  46                 QtCore.QObject.__init__(self)
  47                 self._contacts = {}
  48                 self._pool = pool
  49
  50         def send(self, text):
  51                 assert 0 < len(self._contacts)
  52                 numbers = [contact.selectedNumber for contact in self._contacts.itervalues()]
  53                 le = concurrent.AsyncLinearExecution(self._pool, self._send)
  54                 le.start(numbers, text)
  55
  56         def call(self):
  57                 assert len(self._contacts) == 1
  58                 (contact, ) = self._contacts.itervalues()
  59                 le = concurrent.AsyncLinearExecution(self._pool, self._call)
  60                 le.start(contact.selectedNumber)
  61
  62         def cancel(self):
  63                 le = concurrent.AsyncLinearExecution(self._pool, self._cancel)
  64                 le.start()
  65
  66         def add_contact(self, contactId, title, description, numbersWithDescriptions):
  67                 assert contactId not in self._contacts
  68                 contactDetails = _DraftContact(title, description, numbersWithDescriptions)
  69                 self._contacts[contactId] = contactDetails
  70                 self.recipientsChanged.emit()
  71
  72         def remove_contact(self, contactId):
  73                 assert contactId in self._contacts
  74                 del self._contacts[contactId]
  75                 self.recipientsChanged.emit()
  76
  77         def get_contacts(self):
  78                 return self._contacts.iterkeys()
  79
  80         def get_num_contacts(self):
  81                 return len(self._contacts)
  82
  83         def get_title(self, cid):
  84                 return self._contacts[cid].title
  85
  86         def get_description(self, cid):
  87                 return self._contacts[cid].description
  88
  89         def get_numbers(self, cid):
  90                 return self._contacts[cid].numbers
  91
  92         def get_selected_number(self, cid):
  93                 return self._contacts[cid].selectedNumber
  94
  95         def set_selected_number(self, cid, number):
  96                 # @note I'm lazy, this isn't firing any kind of signal since only one
  97                 # controller right now and that is the viewer
  98                 return self._contacts[cid].numbers
  99
 100         def clear(self):
 101                 oldContacts = self._contacts
 102                 self._contacts = {}
 103                 if oldContacts:
 104                         self.recipientsChanged.emit()
 105
 106         def _send(self, numbers, text):
 107                 self.sendingMessage.emit()
 108                 try:
 109                         self.error.emit("Not Implemented")
 110                         self.sentMessage.emit()
 111                         self.clear()
 112                 except Exception, e:
 113                         self.error.emit(str(e))
 114
 115         def _call(self, number):
 116                 self.calling.emit()
 117                 try:
 118                         self.error.emit("Not Implemented")
 119                         self.called.emit()
 120                         self.clear()
 121                 except Exception, e:
 122                         self.error.emit(str(e))
 123
 124         def _cancel(self):
 125                 self.cancelling.emit()
 126                 try:
 127                         yield (
 128                                 self._backend.cancel,
 129                                 (),
 130                                 {},
 131                         )
 132                         self.cancelled.emit()
 133                 except Exception, e:
 134                         self.error.emit(str(e))
 135
 136
 137 class Session(QtCore.QObject):
 138
 139         stateChange = QtCore.pyqtSignal(str)
 140         loggedOut = QtCore.pyqtSignal()
 141         loggedIn = QtCore.pyqtSignal()
 142         callbackNumberChanged = QtCore.pyqtSignal(str)
 143
 144         contactsUpdated = QtCore.pyqtSignal()
 145         messagesUpdated = QtCore.pyqtSignal()
 146         historyUpdated = QtCore.pyqtSignal()
 147         dndStateChange = QtCore.pyqtSignal(bool)
 148
 149         error = QtCore.pyqtSignal(str)
 150
 151         LOGGEDOUT_STATE = "logged out"
 152         LOGGINGIN_STATE = "logging in"
 153         LOGGEDIN_STATE = "logged in"
 154
 155         _OLDEST_COMPATIBLE_FORMAT_VERSION = misc_utils.parse_version("1.2.0")
 156
 157         _LOGGEDOUT_TIME = -1
 158         _LOGGINGIN_TIME = 0
 159
 160         def __init__(self, cachePath = None):
 161                 QtCore.QObject.__init__(self)
 162                 self._pool = qore_utils.AsyncPool()
 163                 self._backend = None
 164                 self._loggedInTime = self._LOGGEDOUT_TIME
 165                 self._loginOps = []
 166                 self._cachePath = cachePath
 167                 self._username = None
 168                 self._draft = Draft(self._pool)
 169
 170                 self._contacts = {}
 171                 self._messages = []
 172                 self._history = []
 173                 self._dnd = False
 174                 self._callback = ""
 175
 176         @property
 177         def state(self):
 178                 return {
 179                         self._LOGGEDOUT_TIME: self.LOGGEDOUT_STATE,
 180                         self._LOGGINGIN_TIME: self.LOGGINGIN_STATE,
 181                 }.get(self._loggedInTime, self.LOGGEDIN_STATE)
 182
 183         @property
 184         def draft(self):
 185                 return self._draft
 186
 187         def login(self, username, password):
 188                 assert self.state == self.LOGGEDOUT_STATE
 189                 assert username != ""
 190                 if self._cachePath is not None:
 191                         cookiePath = os.path.join(self._cachePath, "%s.cookies" % username)
 192                 else:
 193                         cookiePath = None
 194
 195                 if self._username != username or self._backend is None:
 196                         self._backend = gv_backend.GVDialer(cookiePath)
 197
 198                 self._pool.start()
 199                 le = concurrent.AsyncLinearExecution(self._pool, self._login)
 200                 le.start(username, password)
 201
 202         def logout(self):
 203                 assert self.state != self.LOGGEDOUT_STATE
 204                 self._pool.stop()
 205                 self._loggedInTime = self._LOGGEDOUT_TIME
 206                 self._backend.persist()
 207                 self._save_to_cache()
 208
 209         def clear(self):
 210                 assert self.state == self.LOGGEDOUT_STATE
 211                 self._backend.logout()
 212                 self._backend = None
 213                 self._clear_cache()
 214                 self._draft.clear()
 215
 216         def logout_and_clear(self):
 217                 assert self.state != self.LOGGEDOUT_STATE
 218                 self._pool.stop()
 219                 self._loggedInTime = self._LOGGEDOUT_TIME
 220                 self.clear()
 221
 222         def update_contacts(self, force = True):
 223                 if not force and self._contacts:
 224                         return
 225                 le = concurrent.AsyncLinearExecution(self._pool, self._update_contacts)
 226                 self._perform_op_while_loggedin(le)
 227
 228         def get_contacts(self):
 229                 return self._contacts
 230
 231         def update_messages(self, force = True):
 232                 if not force and self._messages:
 233                         return
 234                 le = concurrent.AsyncLinearExecution(self._pool, self._update_messages)
 235                 self._perform_op_while_loggedin(le)
 236
 237         def get_messages(self):
 238                 return self._messages
 239
 240         def update_history(self, force = True):
 241                 if not force and self._history:
 242                         return
 243                 le = concurrent.AsyncLinearExecution(self._pool, self._update_history)
 244                 self._perform_op_while_loggedin(le)
 245
 246         def get_history(self):
 247                 return self._history
 248
 249         def update_dnd(self):
 250                 le = concurrent.AsyncLinearExecution(self._pool, self._update_dnd)
 251                 self._perform_op_while_loggedin(le)
 252
 253         def set_dnd(self, dnd):
 254                 # I'm paranoid about our state geting out of sync so we set no matter
 255                 # what but act as if we have the cannonical state
 256                 assert self.state == self.LOGGEDIN_STATE
 257                 oldDnd = self._dnd
 258                 try:
 259                         yield (
 260                                 self._backend.set_dnd,
 261                                 (dnd),
 262                                 {},
 263                         )
 264                 except Exception, e:
 265                         self.error.emit(str(e))
 266                         return
 267                 self._dnd = dnd
 268                 if oldDnd != self._dnd:
 269                         self.dndStateChange.emit(self._dnd)
 270
 271         def get_dnd(self):
 272                 return self._dnd
 273
 274         def get_callback_numbers(self):
 275                 # @todo Remove evilness
 276                 return self._backend.get_callback_numbers()
 277
 278         def get_callback_number(self):
 279                 return self._callback
 280
 281         def set_callback_number(self, callback):
 282                 # I'm paranoid about our state geting out of sync so we set no matter
 283                 # what but act as if we have the cannonical state
 284                 assert self.state == self.LOGGEDIN_STATE
 285                 oldCallback = self._callback
 286                 try:
 287                         yield (
 288                                 self._backend.set_callback_number,
 289                                 (callback),
 290                                 {},
 291                         )
 292                 except Exception, e:
 293                         self.error.emit(str(e))
 294                         return
 295                 self._callback = callback
 296                 if oldCallback != self._callback:
 297                         self.callbackNumberChanged.emit(self._callback)
 298
 299         def _login(self, username, password):
 300                 self._loggedInTime = self._LOGGINGIN_TIME
 301                 self.stateChange.emit(self.LOGGINGIN_STATE)
 302                 finalState = self.LOGGEDOUT_STATE
 303                 try:
 304                         isLoggedIn = False
 305
 306                         if not isLoggedIn and self._backend.is_quick_login_possible():
 307                                 isLoggedIn = yield (
 308                                         self._backend.is_authed,
 309                                         (),
 310                                         {},
 311                                 )
 312                                 if isLoggedIn:
 313                                         _moduleLogger.info("Logged in through cookies")
 314                                 else:
 315                                         # Force a clearing of the cookies
 316                                         yield (
 317                                                 self._backend.logout,
 318                                                 (),
 319                                                 {},
 320                                         )
 321
 322                         if not isLoggedIn:
 323                                 isLoggedIn = yield (
 324                                         self._backend.login,
 325                                         (username, password),
 326                                         {},
 327                                 )
 328                                 if isLoggedIn:
 329                                         _moduleLogger.info("Logged in through credentials")
 330
 331                         if isLoggedIn:
 332                                 self._loggedInTime = int(time.time())
 333                                 oldUsername = self._username
 334                                 self._username = username
 335                                 finalState = self.LOGGEDIN_STATE
 336                                 self.loggedIn.emit()
 337                                 if oldUsername != self._username:
 338                                         needOps = not self._load()
 339                                 else:
 340                                         needOps = True
 341                                 if needOps:
 342                                         loginOps = self._loginOps[:]
 343                                 else:
 344                                         loginOps = []
 345                                 del self._loginOps[:]
 346                                 for asyncOp in loginOps:
 347                                         asyncOp.start()
 348                 except Exception, e:
 349                         self.error.emit(str(e))
 350                 finally:
 351                         self.stateChange.emit(finalState)
 352
 353         def _load(self):
 354                 updateContacts = len(self._contacts) != 0
 355                 updateMessages = len(self._messages) != 0
 356                 updateHistory = len(self._history) != 0
 357                 oldDnd = self._dnd
 358                 oldCallback = self._callback
 359
 360                 self._contacts = {}
 361                 self._messages = []
 362                 self._history = []
 363                 self._dnd = False
 364                 self._callback = ""
 365
 366                 loadedFromCache = self._load_from_cache()
 367                 if loadedFromCache:
 368                         updateContacts = True
 369                         updateMessages = True
 370                         updateHistory = True
 371
 372                 if updateContacts:
 373                         self.contactsUpdated.emit()
 374                 if updateMessages:
 375                         self.messagesUpdated.emit()
 376                 if updateHistory:
 377                         self.historyUpdated.emit()
 378                 if oldDnd != self._dnd:
 379                         self.dndStateChange.emit(self._dnd)
 380                 if oldCallback != self._callback:
 381                         self.callbackNumberChanged.emit(self._callback)
 382
 383                 return loadedFromCache
 384
 385         def _load_from_cache(self):
 386                 if self._cachePath is None:
 387                         return False
 388                 cachePath = os.path.join(self._cachePath, "%s.cache" % self._username)
 389
 390                 try:
 391                         with open(cachePath, "rb") as f:
 392                                 dumpedData = pickle.load(f)
 393                 except (pickle.PickleError, IOError, EOFError, ValueError):
 394                         _moduleLogger.exception("Pickle fun loading")
 395                         return False
 396                 except:
 397                         _moduleLogger.exception("Weirdness loading")
 398                         return False
 399
 400                 (
 401                         version, build,
 402                         contacts, messages, history, dnd, callback
 403                 ) = dumpedData
 404
 405                 if misc_utils.compare_versions(
 406                         self._OLDEST_COMPATIBLE_FORMAT_VERSION,
 407                         misc_utils.parse_version(version),
 408                 ) <= 0:
 409                         _moduleLogger.info("Loaded cache")
 410                         self._contacts = contacts
 411                         self._messages = messages
 412                         self._history = history
 413                         self._dnd = dnd
 414                         self._callback = callback
 415                         return True
 416                 else:
 417                         _moduleLogger.debug(
 418                                 "Skipping cache due to version mismatch (%s-%s)" % (
 419                                         version, build
 420                                 )
 421                         )
 422                         return False
 423
 424         def _save_to_cache(self):
 425                 _moduleLogger.info("Saving cache")
 426                 if self._cachePath is None:
 427                         return
 428                 cachePath = os.path.join(self._cachePath, "%s.cache" % self._username)
 429
 430                 try:
 431                         dataToDump = (
 432                                 constants.__version__, constants.__build__,
 433                                 self._contacts, self._messages, self._history, self._dnd, self._callback
 434                         )
 435                         with open(cachePath, "wb") as f:
 436                                 pickle.dump(dataToDump, f, pickle.HIGHEST_PROTOCOL)
 437                         _moduleLogger.info("Cache saved")
 438                 except (pickle.PickleError, IOError):
 439                         _moduleLogger.exception("While saving")
 440
 441         def _clear_cache(self):
 442                 updateContacts = len(self._contacts) != 0
 443                 updateMessages = len(self._messages) != 0
 444                 updateHistory = len(self._history) != 0
 445                 oldDnd = self._dnd
 446                 oldCallback = self._callback
 447
 448                 self._contacts = {}
 449                 self._messages = []
 450                 self._history = []
 451                 self._dnd = False
 452                 self._callback = ""
 453
 454                 if updateContacts:
 455                         self.contactsUpdated.emit()
 456                 if updateMessages:
 457                         self.messagesUpdated.emit()
 458                 if updateHistory:
 459                         self.historyUpdated.emit()
 460                 if oldDnd != self._dnd:
 461                         self.dndStateChange.emit(self._dnd)
 462                 if oldCallback != self._callback:
 463                         self.callbackNumberChanged.emit(self._callback)
 464
 465                 self._save_to_cache()
 466
 467         def _update_contacts(self):
 468                 try:
 469                         self._contacts = yield (
 470                                 self._backend.get_contacts,
 471                                 (),
 472                                 {},
 473                         )
 474                 except Exception, e:
 475                         self.error.emit(str(e))
 476                         return
 477                 self.contactsUpdated.emit()
 478
 479         def _update_messages(self):
 480                 try:
 481                         self._messages = yield (
 482                                 self._backend.get_messages,
 483                                 (),
 484                                 {},
 485                         )
 486                 except Exception, e:
 487                         self.error.emit(str(e))
 488                         return
 489                 self.messagesUpdated.emit()
 490
 491         def _update_history(self):
 492                 try:
 493                         self._history = yield (
 494                                 self._backend.get_recent,
 495                                 (),
 496                                 {},
 497                         )
 498                 except Exception, e:
 499                         self.error.emit(str(e))
 500                         return
 501                 self.historyUpdated.emit()
 502
 503         def _update_dnd(self):
 504                 oldDnd = self._dnd
 505                 try:
 506                         self._dnd = yield (
 507                                 self._backend.is_dnd,
 508                                 (),
 509                                 {},
 510                         )
 511                 except Exception, e:
 512                         self.error.emit(str(e))
 513                         return
 514                 if oldDnd != self._dnd:
 515                         self.dndStateChange(self._dnd)
 516
 517         def _perform_op_while_loggedin(self, op):
 518                 if self.state == self.LOGGEDIN_STATE:
 519                         op.start()
 520                 else:
 521                         self._push_login_op(op)
 522
 523         def _push_login_op(self, asyncOp):
 524                 assert self.state != self.LOGGEDIN_STATE
 525                 if asyncOp in self._loginOps:
 526                         _moduleLogger.info("Skipping queueing duplicate op: %r" % asyncOp)
 527                         return
 528                 self._loginOps.append(asyncOp)