/** * Handles the GetItemEstimate command * Returns an estimation of how many items will be synchronized at the next sync * This is mostly used to show something in the progress bar * * @param int $commandCode * * @access public * @return boolean */ public function Handle($commandCode) { $sc = new SyncCollections(); if (!self::$decoder->getElementStartTag(SYNC_GETITEMESTIMATE_GETITEMESTIMATE)) { return false; } if (!self::$decoder->getElementStartTag(SYNC_GETITEMESTIMATE_FOLDERS)) { return false; } while (self::$decoder->getElementStartTag(SYNC_GETITEMESTIMATE_FOLDER)) { $spa = new SyncParameters(); $spastatus = false; // read the folder properties while (1) { if (self::$decoder->getElementStartTag(SYNC_SYNCKEY)) { try { $spa->SetSyncKey(self::$decoder->getElementContent()); } catch (StateInvalidException $siex) { $spastatus = SYNC_GETITEMESTSTATUS_SYNCSTATENOTPRIMED; } if (!self::$decoder->getElementEndTag()) { return false; } } elseif (self::$decoder->getElementStartTag(SYNC_GETITEMESTIMATE_FOLDERID)) { $spa->SetFolderId(self::$decoder->getElementContent()); if (!self::$decoder->getElementEndTag()) { return false; } } elseif (self::$decoder->getElementStartTag(SYNC_CONVERSATIONMODE)) { $spa->SetConversationMode(true); if (($conversationmode = self::$decoder->getElementContent()) !== false) { $spa->SetConversationMode((bool) $conversationmode); if (!self::$decoder->getElementEndTag()) { return false; } } } elseif (self::$decoder->getElementStartTag(SYNC_GETITEMESTIMATE_FOLDERTYPE)) { $spa->SetContentClass(self::$decoder->getElementContent()); if (!self::$decoder->getElementEndTag()) { return false; } } elseif (self::$decoder->getElementStartTag(SYNC_FILTERTYPE)) { $spa->SetFilterType(self::$decoder->getElementContent()); if (!self::$decoder->getElementEndTag()) { return false; } } while (self::$decoder->getElementStartTag(SYNC_OPTIONS)) { while (1) { $firstOption = true; // foldertype definition if (self::$decoder->getElementStartTag(SYNC_FOLDERTYPE)) { $foldertype = self::$decoder->getElementContent(); ZLog::Write(LOGLEVEL_DEBUG, sprintf("HandleGetItemEstimate(): specified options block with foldertype '%s'", $foldertype)); // switch the foldertype for the next options $spa->UseCPO($foldertype); // set to synchronize all changes. The mobile could overwrite this value $spa->SetFilterType(SYNC_FILTERTYPE_ALL); if (!self::$decoder->getElementEndTag()) { return false; } } else { if ($firstOption) { $spa->UseCPO(); // set to synchronize all changes. The mobile could overwrite this value $spa->SetFilterType(SYNC_FILTERTYPE_ALL); } } $firstOption = false; if (self::$decoder->getElementStartTag(SYNC_FILTERTYPE)) { $spa->SetFilterType(self::$decoder->getElementContent()); if (!self::$decoder->getElementEndTag()) { return false; } } if (self::$decoder->getElementStartTag(SYNC_MAXITEMS)) { $spa->SetWindowSize($maxitems = self::$decoder->getElementContent()); if (!self::$decoder->getElementEndTag()) { return false; } } $e = self::$decoder->peek(); if ($e[EN_TYPE] == EN_TYPE_ENDTAG) { self::$decoder->getElementEndTag(); break; } } } $e = self::$decoder->peek(); if ($e[EN_TYPE] == EN_TYPE_ENDTAG) { self::$decoder->getElementEndTag(); //SYNC_GETITEMESTIMATE_FOLDER break; } } // Process folder data //In AS 14 request only collectionid is sent, without class if (!$spa->HasContentClass() && $spa->HasFolderId()) { try { $spa->SetContentClass(self::$deviceManager->GetFolderClassFromCacheByID($spa->GetFolderId())); } catch (NoHierarchyCacheAvailableException $nhca) { $spastatus = SYNC_GETITEMESTSTATUS_COLLECTIONINVALID; } } // compatibility mode AS 1.0 - get folderid which was sent during GetHierarchy() if (!$spa->HasFolderId() && $spa->HasContentClass()) { $spa->SetFolderId(self::$deviceManager->GetFolderIdFromCacheByClass($spa->GetContentClass())); } // Add collection to SC and load state $sc->AddCollection($spa); if ($spastatus) { // the CPO has a folder id now, so we can set the status $sc->AddParameter($spa, "status", $spastatus); } else { try { $sc->AddParameter($spa, "state", self::$deviceManager->GetStateManager()->GetSyncState($spa->GetSyncKey())); // if this is an additional folder the backend has to be setup correctly if (!self::$backend->Setup(ZPush::GetAdditionalSyncFolderStore($spa->GetFolderId()))) { throw new StatusException(sprintf("HandleGetItemEstimate() could not Setup() the backend for folder id '%s'", $spa->GetFolderId()), SYNC_GETITEMESTSTATUS_COLLECTIONINVALID); } } catch (StateNotFoundException $snfex) { // ok, the key is invalid. Question is, if the hierarchycache is still ok //if not, we have to issue SYNC_GETITEMESTSTATUS_COLLECTIONINVALID which triggers a FolderSync try { self::$deviceManager->GetFolderClassFromCacheByID($spa->GetFolderId()); // we got here, so the HierarchyCache is ok $sc->AddParameter($spa, "status", SYNC_GETITEMESTSTATUS_SYNCKKEYINVALID); } catch (NoHierarchyCacheAvailableException $nhca) { $sc->AddParameter($spa, "status", SYNC_GETITEMESTSTATUS_COLLECTIONINVALID); } self::$topCollector->AnnounceInformation("StateNotFoundException " . $sc->GetParameter($spa, "status"), true); } catch (StatusException $stex) { if ($stex->getCode() == SYNC_GETITEMESTSTATUS_COLLECTIONINVALID) { $sc->AddParameter($spa, "status", SYNC_GETITEMESTSTATUS_COLLECTIONINVALID); } else { $sc->AddParameter($spa, "status", SYNC_GETITEMESTSTATUS_SYNCSTATENOTPRIMED); } self::$topCollector->AnnounceInformation("StatusException " . $sc->GetParameter($spa, "status"), true); } } } if (!self::$decoder->getElementEndTag()) { return false; } //SYNC_GETITEMESTIMATE_FOLDERS if (!self::$decoder->getElementEndTag()) { return false; } //SYNC_GETITEMESTIMATE_GETITEMESTIMATE self::$encoder->startWBXML(); self::$encoder->startTag(SYNC_GETITEMESTIMATE_GETITEMESTIMATE); $status = SYNC_GETITEMESTSTATUS_SUCCESS; // look for changes in all collections try { $sc->CountChanges(); } catch (StatusException $ste) { $status = SYNC_GETITEMESTSTATUS_COLLECTIONINVALID; } $changes = $sc->GetChangedFolderIds(); foreach ($sc as $folderid => $spa) { self::$encoder->startTag(SYNC_GETITEMESTIMATE_RESPONSE); if ($sc->GetParameter($spa, "status")) { $status = $sc->GetParameter($spa, "status"); } self::$encoder->startTag(SYNC_GETITEMESTIMATE_STATUS); self::$encoder->content($status); self::$encoder->endTag(); self::$encoder->startTag(SYNC_GETITEMESTIMATE_FOLDER); self::$encoder->startTag(SYNC_GETITEMESTIMATE_FOLDERTYPE); self::$encoder->content($spa->GetContentClass()); self::$encoder->endTag(); self::$encoder->startTag(SYNC_GETITEMESTIMATE_FOLDERID); self::$encoder->content($spa->GetFolderId()); self::$encoder->endTag(); if (isset($changes[$folderid]) && $changes[$folderid] !== false) { self::$encoder->startTag(SYNC_GETITEMESTIMATE_ESTIMATE); self::$encoder->content($changes[$folderid]); self::$encoder->endTag(); if ($changes[$folderid] > 0) { self::$topCollector->AnnounceInformation(sprintf("%s %d changes", $spa->GetContentClass(), $changes[$folderid]), true); } } self::$encoder->endTag(); self::$encoder->endTag(); } if (array_sum($changes) == 0) { self::$topCollector->AnnounceInformation("No changes found", true); } self::$encoder->endTag(); return true; }