def export_session():
# validate arguments phase 1
parameters = request.get_json(force=True)
if 'session_id' not in parameters or 'export_script' not in parameters:
return bad("invalid request: "
"missing field 'session_id' or 'export_script'")
session_id, export_script_name = parameters['session_id'], parameters[
'export_script']
# validate arguments phase 2
session = WokPersistentSession.find_by_session_id(session_id)
if session is None:
return bad(f"invalid request: " f"no session with id={session_id}")
export_script = get_export_script(export_script_name)
if export_script is None:
return bad(f"invalid request: "
f"no export script with name={export_script_name}")
# request user to select the export file
export_file = select_file('Select the export file',
('SNA Export File', "*.csv"),
('Any File', "*.*"))
if export_file is None:
return bad("cannot run the export because export file could not "
"be selected")
# start the export process and respond to the client
logger.info(f"started exporting session(id={session_id}) "
f"with script(name={export_script_name})")
export_threaded_runner = WokPersistentSessionExportScriptThreadedRunner(
export_script, session, Path(export_file))
export_threaded_runner.daemon = True
export_threaded_runner.start()
return good(message="exporting now...")
def drop_session():
request_params = request.get_json(force=True)
if 'sessionId' not in request_params:
return bad("invalid session id or id not provided")
session_id = request_params['sessionId']
# drop session
session = WokPersistentSession.find_by_session_id(session_id)
if session is None:
return bad(f"invalid session id: no session named {session_id} exists")
# drop session metadata
session_meta = WokPersistentSessionMeta.find_by_session(session)
if session_meta is None:
return bad(
f"invalid session id: no session meta for session named {session_id} exists"
)
try:
if session.drop() and session_meta.drop():
return good(term=session.term, id=session.session_id)
return bad(f"cannot drop session(id={session_id}) or its metadata, "
f"consider manually patch the database")
except Exception as e:
return bad(f"error dropping session(id={session_id}): {e}, "
f"consider contacting the developer and "
f"manually patch the database")
def poll_crawling_progress():
if Wok().is_crawling:
return good(finished=Wok().crawling_progress,
total=Wok().crawling_total_count)
if Wok().crawling_done:
if Wok().crawling_went_wrong:
return bad("crawling failed, consider reset and crawl again")
return good(finished=-1, total=Wok().crawling_total_count) # all done
return bad("cannot poll crawling progress in this state: "
"have you started crawling?")
def poll_search_progress():
if Wok().is_searching:
return good(finished=False)
if Wok().search_done:
if Wok().search_went_wrong:
what = Wok().search_what_went_wrong
if what is None:
return bad("search failed on unknown error, "
"check your search term and search again")
return bad(f"search failed: {what}")
return good(finished=True, result_count=Wok().search_result_count)
return bad("cannot poll search progress: have you searched?")
def command_search():
if not Wok().can_search:
return bad("cannot search in this state: a search may be going on")
# reset the search
Wok().reset_search()
logger.debug("search has been reset and you may search again")
args = request.get_json(force=True)
Wok().search(args['term'])
return good()
def command_crawl():
if not Wok().can_crawl:
return bad(
"cannot start crawling in this state: "
"either you have not searched or a crawler is working already")
# reset crawler
Wok().reset_crawl()
logger.info("crawler has been reset and is ready to crawl again")
# parse arguments
args = request.get_json(force=True)
start, end = int(args['start']), int(args['end'])
year_start, year_end = int(args['year_start']), int(args['year_end'])
if year_start <= 0 or year_end <= 0 or year_end < year_start:
year_range = None
else:
year_range = range(year_start, year_end + 1)
Wok().crawl(start, end, year_range)
return good()
def command_reset():
Wok().reset_all()
if Wok().can_search:
return good()
return bad("reset failed, consider restarting the whole app")