## logger.py ## ## Copyright (C) 2005-2006 Nikos Kouremenos ## Copyright (C) 2005-2006 Yann Le Boulanger ## ## This program is free software; you can redistribute it and/or modify ## it under the terms of the GNU General Public License as published ## by the Free Software Foundation; version 2 only. ## ## This program is distributed in the hope that it will be useful, ## but WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ## GNU General Public License for more details. ## ''' This module allows to access the on-disk database of logs. ''' import os import sys import time import datetime from gzip import GzipFile from cStringIO import StringIO import exceptions import gajim try: import sqlite3 as sqlite # python 2.5 except ImportError: try: from pysqlite2 import dbapi2 as sqlite except ImportError: raise exceptions.PysqliteNotAvailable import configpaths LOG_DB_PATH = configpaths.gajimpaths['LOG_DB'] LOG_DB_FOLDER, LOG_DB_FILE = os.path.split(LOG_DB_PATH) class Constants: def __init__(self): ( self.JID_NORMAL_TYPE, self.JID_ROOM_TYPE ) = range(2) ( self.KIND_STATUS, self.KIND_GCSTATUS, self.KIND_GC_MSG, self.KIND_SINGLE_MSG_RECV, self.KIND_CHAT_MSG_RECV, self.KIND_SINGLE_MSG_SENT, self.KIND_CHAT_MSG_SENT, self.KIND_ERROR ) = range(8) ( self.SHOW_ONLINE, self.SHOW_CHAT, self.SHOW_AWAY, self.SHOW_XA, self.SHOW_DND, self.SHOW_OFFLINE ) = range(6) ( self.TYPE_AIM, self.TYPE_GG, self.TYPE_HTTP_WS, self.TYPE_ICQ, self.TYPE_MSN, self.TYPE_QQ, self.TYPE_SMS, self.TYPE_SMTP, self.TYPE_TLEN, self.TYPE_YAHOO, self.TYPE_NEWMAIL, self.TYPE_RSS, self.TYPE_WEATHER, ) = range(13) constants = Constants() class Logger: def __init__(self): self.jids_already_in = [] # holds jids that we already have in DB self.con = None if not os.path.exists(LOG_DB_PATH): # this can happen only the first time (the time we create the db) # db is not created here but in src/common/checks_paths.py return self.init_vars() def close_db(self): if self.con: self.con.close() self.con = None self.cur = None def open_db(self): self.close_db() # FIXME: sqlite3_open wants UTF8 strings. So a path with # non-ascii chars doesn't work. See #2812 and # http://lists.initd.org/pipermail/pysqlite/2005-August/000134.html back = os.getcwd() os.chdir(LOG_DB_FOLDER) # if locked, wait up to 20 sec to unlock # before raise (hopefully should be enough) self.con = sqlite.connect(LOG_DB_FILE, timeout = 20.0, isolation_level = 'IMMEDIATE') os.chdir(back) self.cur = self.con.cursor() self.set_synchronous(False) def set_synchronous(self, sync): try: if sync: self.cur.execute("PRAGMA synchronous = NORMAL") else: self.cur.execute("PRAGMA synchronous = OFF") except sqlite.Error, e: gajim.log.debug("Failed to set_synchronous(%s): %s" % (sync, str(e))) def init_vars(self): self.open_db() self.get_jids_already_in_db() def get_jids_already_in_db(self): self.cur.execute('SELECT jid FROM jids') rows = self.cur.fetchall() # list of tupples: [(u'aaa@bbb',), (u'cc@dd',)] self.jids_already_in = [] for row in rows: # row[0] is first item of row (the only result here, the jid) self.jids_already_in.append(row[0]) def jid_is_from_pm(self, jid): '''if jid is gajim@conf/nkour it's likely a pm one, how we know gajim@conf is not a normal guy and nkour is not his resource? we ask if gajim@conf is already in jids (with type room jid) this fails if user disables logging for room and only enables for pm (so higly unlikely) and if we fail we do not go chaos (user will see the first pm as if it was message in room's public chat) and after that all okay''' possible_room_jid, possible_nick = jid.split('/', 1) return self.jid_is_room_jid(possible_room_jid) def jid_is_room_jid(self, jid): self.cur.execute('SELECT jid_id FROM jids WHERE jid=? AND type=?', (jid, constants.JID_ROOM_TYPE)) row = self.cur.fetchone() if row is None: return False else: return True def get_jid_id(self, jid, typestr = None): '''jids table has jid and jid_id logs table has log_id, jid_id, contact_name, time, kind, show, message so to ask logs we need jid_id that matches our jid in jids table this method wants jid and returns the jid_id for later sql-ing on logs typestr can be 'ROOM' or anything else depending on the type of JID and is only needed to be specified when the JID is new in DB ''' if jid.find('/') != -1: # if it has a / jid_is_from_pm = self.jid_is_from_pm(jid) if not jid_is_from_pm: # it's normal jid with resource jid = jid.split('/', 1)[0] # remove the resource if jid in self.jids_already_in: # we already have jids in DB self.cur.execute('SELECT jid_id FROM jids WHERE jid=?', [jid]) row = self.cur.fetchone() if row: return row[0] # oh! a new jid :), we add it now if typestr == 'ROOM': typ = constants.JID_ROOM_TYPE else: typ = constants.JID_NORMAL_TYPE self.cur.execute('INSERT INTO jids (jid, type) VALUES (?, ?)', (jid, typ)) try: self.con.commit() except sqlite.OperationalError, e: print >> sys.stderr, str(e) jid_id = self.cur.lastrowid self.jids_already_in.append(jid) return jid_id def convert_human_values_to_db_api_values(self, kind, show): '''coverts from string style to constant ints for db''' if kind == 'status': kind_col = constants.KIND_STATUS elif kind == 'gcstatus': kind_col = constants.KIND_GCSTATUS elif kind == 'gc_msg': kind_col = constants.KIND_GC_MSG elif kind == 'single_msg_recv': kind_col = constants.KIND_SINGLE_MSG_RECV elif kind == 'single_msg_sent': kind_col = constants.KIND_SINGLE_MSG_SENT elif kind == 'chat_msg_recv': kind_col = constants.KIND_CHAT_MSG_RECV elif kind == 'chat_msg_sent': kind_col = constants.KIND_CHAT_MSG_SENT elif kind == 'error': kind_col = constants.KIND_ERROR if show == 'online': show_col = constants.SHOW_ONLINE elif show == 'chat': show_col = constants.SHOW_CHAT elif show == 'away': show_col = constants.SHOW_AWAY elif show == 'xa': show_col = constants.SHOW_XA elif show == 'dnd': show_col = constants.SHOW_DND elif show == 'offline': show_col = constants.SHOW_OFFLINE elif show is None: show_col = None else: # invisible in GC when someone goes invisible # it's a RFC violation .... but we should not crash show_col = 'UNKNOWN' return kind_col, show_col def convert_human_transport_type_to_db_api_values(self, type_): '''converts from string style to constant ints for db''' if type_ == 'aim': return constants.TYPE_AIM if type_ == 'gadu-gadu': return constants.TYPE_GG if type_ == 'http-ws': return constants.TYPE_HTTP_WS if type_ == 'icq': return constants.TYPE_ICQ if type_ == 'msn': return constants.TYPE_MSN if type_ == 'qq': return constants.TYPE_QQ if type_ == 'sms': return constants.TYPE_SMS if type_ == 'smtp': return constants.TYPE_SMTP if type_ in ('tlen', 'x-tlen'): return constants.TYPE_TLEN if type_ == 'yahoo': return constants.TYPE_YAHOO if type_ == 'newmail': return constants.TYPE_NEWMAIL if type_ == 'rss': return constants.TYPE_RSS if type_ == 'weather': return constants.TYPE_WEATHER return None def convert_api_values_to_human_transport_type(self, type_id): '''converts from constant ints for db to string style''' if type_id == constants.TYPE_AIM: return 'aim' if type_id == constants.TYPE_GG: return 'gadu-gadu' if type_id == constants.TYPE_HTTP_WS: return 'http-ws' if type_id == constants.TYPE_ICQ: return 'icq' if type_id == constants.TYPE_MSN: return 'msn' if type_id == constants.TYPE_QQ: return 'qq' if type_id == constants.TYPE_SMS: return 'sms' if type_id == constants.TYPE_SMTP: return 'smtp' if type_id == constants.TYPE_TLEN: return 'tlen' if type_id == constants.TYPE_YAHOO: return 'yahoo' if type_id == constants.TYPE_NEWMAIL: return 'newmail' if type_id == constants.TYPE_RSS: return 'rss' if type_id == constants.TYPE_WEATHER: return 'weather' def commit_to_db(self, values, write_unread = False): #print 'saving', values sql = 'INSERT INTO logs (jid_id, contact_name, time, kind, show, message, subject) VALUES (?, ?, ?, ?, ?, ?, ?)' try: self.cur.execute(sql, values) except sqlite.OperationalError, e: raise exceptions.PysqliteOperationalError(str(e)) message_id = None try: self.con.commit() if write_unread: message_id = self.cur.lastrowid except sqlite.OperationalError, e: print >> sys.stderr, str(e) if message_id: self.insert_unread_events(message_id, values[0]) return message_id def insert_unread_events(self, message_id, jid_id): ''' add unread message with id: message_id''' sql = 'INSERT INTO unread_messages VALUES (%d, %d)' % (message_id, jid_id) self.cur.execute(sql) try: self.con.commit() except sqlite.OperationalError, e: print >> sys.stderr, str(e) def set_read_messages(self, message_ids): ''' mark all messages with ids in message_ids as read''' ids = ','.join([str(i) for i in message_ids]) sql = 'DELETE FROM unread_messages WHERE message_id IN (%s)' % ids self.cur.execute(sql) try: self.con.commit() except sqlite.OperationalError, e: print >> sys.stderr, str(e) def get_unread_msgs_for_jid(self, jid): ''' get unread messages for jid ''' if not jid: return jid = jid.lower() jid_id = self.get_jid_id(jid) all_messages = [] try: self.cur.execute( 'SELECT message_id from unread_messages WHERE jid_id = %d' % jid_id) results = self.cur.fetchall() except: pass for message in results: msg_id = message[0] self.cur.execute(''' SELECT log_line_id, message, time, subject FROM logs WHERE jid_id = %d AND log_line_id = %d ''' % (jid_id, msg_id) ) results = self.cur.fetchall() all_messages.append(results[0]) return all_messages def write(self, kind, jid, message = None, show = None, tim = None, subject = None): '''write a row (status, gcstatus, message etc) to logs database kind can be status, gcstatus, gc_msg, (we only recv for those 3), single_msg_recv, chat_msg_recv, chat_msg_sent, single_msg_sent we cannot know if it is pm or normal chat message, we try to guess see jid_is_from_pm() which is called by get_jid_id() we analyze jid and store it as follows: jids.jid text column will hold JID if TC-related, room_jid if GC-related, ROOM_JID/nick if pm-related.''' if self.jids_already_in == []: # only happens if we just created the db self.open_db() jid = jid.lower() contact_name_col = None # holds nickname for kinds gcstatus, gc_msg # message holds the message unless kind is status or gcstatus, # then it holds status message message_col = message subject_col = subject if tim: time_col = int(float(time.mktime(tim))) else: time_col = int(float(time.time())) kind_col, show_col = self.convert_human_values_to_db_api_values(kind, show) write_unread = False # now we may have need to do extra care for some values in columns if kind == 'status': # we store (not None) time, jid, show, msg # status for roster items jid_id = self.get_jid_id(jid) if show is None: # show is None (xmpp), but we say that 'online' show_col = constants.SHOW_ONLINE elif kind == 'gcstatus': # status in ROOM (for pm status see status) if show is None: # show is None (xmpp), but we say that 'online' show_col = constants.SHOW_ONLINE jid, nick = jid.split('/', 1) jid_id = self.get_jid_id(jid, 'ROOM') # re-get jid_id for the new jid contact_name_col = nick elif kind == 'gc_msg': if jid.find('/') != -1: # if it has a / jid, nick = jid.split('/', 1) else: # it's server message f.e. error message # when user tries to ban someone but he's not allowed to nick = None jid_id = self.get_jid_id(jid, 'ROOM') # re-get jid_id for the new jid contact_name_col = nick else: jid_id = self.get_jid_id(jid) if kind == 'chat_msg_recv': write_unread = True if show_col == 'UNKNOWN': # unknown show, do not log return values = (jid_id, contact_name_col, time_col, kind_col, show_col, message_col, subject_col) return self.commit_to_db(values, write_unread) def get_last_conversation_lines(self, jid, restore_how_many_rows, pending_how_many, timeout, account): '''accepts how many rows to restore and when to time them out (in minutes) (mark them as too old) and number of messages that are in queue and are already logged but pending to be viewed, returns a list of tupples containg time, kind, message, list with empty tupple if nothing found to meet our demands''' jid = jid.lower() jid_id = self.get_jid_id(jid) where_sql = self._build_contact_where(account, jid) now = int(float(time.time())) timed_out = now - (timeout * 60) # before that they are too old # so if we ask last 5 lines and we have 2 pending we get # 3 - 8 (we avoid the last 2 lines but we still return 5 asked) self.cur.execute(''' SELECT time, kind, message FROM logs WHERE (%s) AND kind IN (%d, %d, %d, %d, %d) AND time > %d ORDER BY time DESC LIMIT %d OFFSET %d ''' % (where_sql, constants.KIND_SINGLE_MSG_RECV, constants.KIND_CHAT_MSG_RECV, constants.KIND_SINGLE_MSG_SENT, constants.KIND_CHAT_MSG_SENT, constants.KIND_ERROR, timed_out, restore_how_many_rows, pending_how_many) ) results = self.cur.fetchall() results.reverse() return results def get_unix_time_from_date(self, year, month, day): # year (fe 2005), month (fe 11), day (fe 25) # returns time in seconds for the second that starts that date since epoch # gimme unixtime from year month day: d = datetime.date(year, month, day) local_time = d.timetuple() # time tupple (compat with time.localtime()) start_of_day = int(time.mktime(local_time)) # we have time since epoch baby :) return start_of_day def get_conversation_for_date(self, jid, year, month, day, account): '''returns contact_name, time, kind, show, message for each row in a list of tupples, returns list with empty tupple if we found nothing to meet our demands''' jid = jid.lower() jid_id = self.get_jid_id(jid) where_sql = self._build_contact_where(account, jid) start_of_day = self.get_unix_time_from_date(year, month, day) seconds_in_a_day = 86400 # 60 * 60 * 24 last_second_of_day = start_of_day + seconds_in_a_day - 1 self.cur.execute(''' SELECT contact_name, time, kind, show, message FROM logs WHERE (%s) AND time BETWEEN %d AND %d ORDER BY time ''' % (where_sql, start_of_day, last_second_of_day)) results = self.cur.fetchall() return results def get_search_results_for_query(self, jid, query, account): '''returns contact_name, time, kind, show, message for each row in a list of tupples, returns list with empty tupple if we found nothing to meet our demands''' jid = jid.lower() jid_id = self.get_jid_id(jid) if False: #query.startswith('SELECT '): # it's SQL query (FIXME) try: self.cur.execute(query) except sqlite.OperationalError, e: results = [('', '', '', '', str(e))] return results else: # user just typed something, we search in message column where_sql = self._build_contact_where(account, jid) like_sql = '%' + query.replace("'", "''") + '%' self.cur.execute(''' SELECT contact_name, time, kind, show, message, subject FROM logs WHERE (%s) AND message LIKE '%s' ORDER BY time ''' % (where_sql, like_sql)) results = self.cur.fetchall() return results def get_days_with_logs(self, jid, year, month, max_day, account): '''returns the list of days that have logs (not status messages)''' jid = jid.lower() jid_id = self.get_jid_id(jid) days_with_logs = [] where_sql = self._build_contact_where(account, jid) # First select all date of month whith logs we want start_of_month = self.get_unix_time_from_date(year, month, 1) seconds_in_a_day = 86400 # 60 * 60 * 24 last_second_of_month = start_of_month + (seconds_in_a_day * max_day) - 1 self.cur.execute(''' SELECT time FROM logs WHERE (%s) AND time BETWEEN %d AND %d AND kind NOT IN (%d, %d) ORDER BY time ''' % (where_sql, start_of_month, last_second_of_month, constants.KIND_STATUS, constants.KIND_GCSTATUS)) result = self.cur.fetchall() # Copy all interesting times in a temporary table self.cur.execute('CREATE TEMPORARY TABLE blabla(time,INTEGER)') for line in result: self.cur.execute(''' INSERT INTO blabla (time) VALUES (%d) ''' % (line[0])) # then search in this small temp table for each day for day in xrange(1, max_day + 1): # count from 1 to 28 or to 30 or to 31 start_of_day = self.get_unix_time_from_date(year, month, day) last_second_of_day = start_of_day + seconds_in_a_day - 1 # just ask one row to see if we have sth for this date self.cur.execute(''' SELECT time FROM blabla WHERE time BETWEEN %d AND %d LIMIT 1 ''' % (start_of_day, last_second_of_day)) result = self.cur.fetchone() if result: days_with_logs[0:0]=[day] # Delete temporary table self.cur.execute('DROP TABLE blabla') result = self.cur.fetchone() return days_with_logs def get_last_date_that_has_logs(self, jid, account = None, is_room = False): '''returns last time (in seconds since EPOCH) for which we had logs (excluding statuses)''' jid = jid.lower() where_sql = '' if not is_room: where_sql = self._build_contact_where(account, jid) else: jid_id = self.get_jid_id(jid, 'ROOM') where_sql = 'jid_id = %s' % jid_id self.cur.execute(''' SELECT MAX(time) FROM logs WHERE (%s) AND kind NOT IN (%d, %d) ''' % (where_sql, constants.KIND_STATUS, constants.KIND_GCSTATUS)) results = self.cur.fetchone() if results is not None: result = results[0] else: result = None return result def _build_contact_where(self, account, jid): '''build the where clause for a jid, including metacontacts jid(s) if any''' where_sql = '' # will return empty list if jid is not associated with # any metacontacts family = gajim.contacts.get_metacontacts_family(account, jid) if family: for user in family: jid_id = self.get_jid_id(user['jid']) where_sql += 'jid_id = %s' % jid_id if user != family[-1]: where_sql += ' OR ' else: # if jid was not associated with metacontacts jid_id = self.get_jid_id(jid) where_sql = 'jid_id = %s' % jid_id return where_sql def save_transport_type(self, jid, type_): '''save the type of the transport in DB''' type_id = self.convert_human_transport_type_to_db_api_values(type_) if not type_id: # unknown type return self.cur.execute( 'SELECT type from transports_cache WHERE transport = "%s"' % jid) results = self.cur.fetchall() if results: result = results[0][0] if result == type_id: return self.cur.execute( 'UPDATE transports_cache SET type = %d WHERE transport = "%s"' % (type_id, jid)) try: self.con.commit() except sqlite.OperationalError, e: print >> sys.stderr, str(e) return self.cur.execute( 'INSERT INTO transports_cache VALUES ("%s", %d)' % (jid, type_id)) try: self.con.commit() except sqlite.OperationalError, e: print >> sys.stderr, str(e) def get_transports_type(self): '''return all the type of the transports in DB''' self.cur.execute( 'SELECT * from transports_cache') results = self.cur.fetchall() if not results: return {} answer = {} for result in results: answer[result[0]] = self.convert_api_values_to_human_transport_type(result[1]) return answer # A longer note here: # The database contains a blob field. Pysqlite seems to need special care for such fields. # When storing, we need to convert string into buffer object (1). # When retrieving, we need to convert it back to a string to decompress it. (2) # GzipFile needs a file-like object, StringIO emulates file for plain strings. def iter_caps_data(self): ''' Iterate over caps cache data stored in the database. The iterator values are pairs of (node, ver, ext, identities, features): identities == {'category':'foo', 'type':'bar', 'name':'boo'}, features being a list of feature namespaces. ''' # get data from table # the data field contains binary object (gzipped data), this is a hack # to get that data without trying to convert it to unicode #tmp, self.con.text_factory = self.con.text_factory, str try: self.cur.execute('''SELECT node, ver, ext, data FROM caps_cache;'''); except sqlite.OperationalError: # might happen when there's no caps_cache table yet # -- there's no data to read anyway then #self.con.text_factory = tmp return #self.con.text_factory = tmp for node, ver, ext, data in self.cur: # for each row: unpack the data field # (format: (category, type, name, category, type, name, ... # ..., 'FEAT', feature1, feature2, ...).join(' ')) # NOTE: if there's a need to do more gzip, put that to a function data=GzipFile(fileobj=StringIO(str(data))).read().split('\0') # (2) -- note above i=0 identities=set() features=set() while i<(len(data)-2) and data[i]!='FEAT': category=data[i] type=data[i+1] name=data[i+2] identities.add((category,type,name)) i+=3 i+=1 while i> sys.stderr, str(e)