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SickGear/sickbeard/name_parser/parser.py
JackDandy 05a9dc62f1 Add Torrentz2 provider. 
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# Author: Nic Wolfe <nic@wolfeden.ca>
# URL: http://code.google.com/p/sickbeard/
#
# This file is part of SickGear.
#
# SickGear 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, either version 3 of the License, or
# (at your option) any later version.
#
# SickGear 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.
#
# You should have received a copy of the GNU General Public License
# along with SickGear. If not, see <http://www.gnu.org/licenses/>.
from __future__ import with_statement
import os
import time
import re
import datetime
import os.path
import regexes
import sickbeard
from sickbeard import logger, helpers, scene_numbering, common, scene_exceptions, encodingKludge as ek, db
from sickbeard.exceptions import ex
class NameParser(object):
ALL_REGEX = 0
NORMAL_REGEX = 1
ANIME_REGEX = 2
def __init__(self, file_name=True, showObj=None, try_scene_exceptions=False, convert=False,
naming_pattern=False, testing=False):
self.file_name = file_name
self.showObj = showObj
self.try_scene_exceptions = try_scene_exceptions
self.convert = convert
self.naming_pattern = naming_pattern
self.testing = testing
if self.showObj and not self.showObj.is_anime:
self._compile_regexes(self.NORMAL_REGEX)
elif self.showObj and self.showObj.is_anime:
self._compile_regexes(self.ANIME_REGEX)
else:
self._compile_regexes(self.ALL_REGEX)
@staticmethod
def clean_series_name(series_name):
"""Cleans up series name by removing any . and _
characters, along with any trailing hyphens.
Is basically equivalent to replacing all _ and . with a
space, but handles decimal numbers in string, for example:
>>> clean_series_name('an.example.1.0.test')
'an example 1.0 test'
>>> clean_series_name('an_example_1.0_test')
'an example 1.0 test'
Stolen from dbr's tvnamer
"""
series_name = re.sub('(\D)\.(?!\s)(\D)', '\\1 \\2', series_name)
series_name = re.sub('(\d)\.(\d{4})', '\\1 \\2', series_name) # if it ends in a year then don't keep the dot
series_name = re.sub('(\D)\.(?!\s)', '\\1 ', series_name)
series_name = re.sub('\.(?!\s)(\D)', ' \\1', series_name)
series_name = series_name.replace('_', ' ')
series_name = re.sub('-$', '', series_name)
series_name = re.sub('^\[.*\]', '', series_name)
return series_name.strip()
def _compile_regexes(self, regexMode):
if self.ANIME_REGEX == regexMode:
logger.log(u'Using ANIME regexs', logger.DEBUG)
uncompiled_regex = [regexes.anime_regexes]
elif self.NORMAL_REGEX == regexMode:
logger.log(u'Using NORMAL regexs', logger.DEBUG)
uncompiled_regex = [regexes.normal_regexes]
else:
logger.log(u'Using ALL regexes', logger.DEBUG)
uncompiled_regex = [regexes.normal_regexes, regexes.anime_regexes]
self.compiled_regexes = {0: [], 1: []}
index = 0
for regexItem in uncompiled_regex:
for cur_pattern_num, (cur_pattern_name, cur_pattern) in enumerate(regexItem):
try:
cur_regex = re.compile(cur_pattern, re.VERBOSE | re.IGNORECASE)
except re.error as errormsg:
logger.log(u'WARNING: Invalid episode_pattern, %s. %s' % (errormsg, cur_pattern))
else:
self.compiled_regexes[index].append([cur_pattern_num, cur_pattern_name, cur_regex])
index += 1
def _parse_string(self, name):
if not name:
return
matches = []
for regex in self.compiled_regexes:
for (cur_regex_num, cur_regex_name, cur_regex) in self.compiled_regexes[regex]:
new_name = helpers.remove_non_release_groups(name, 'anime' in cur_regex_name)
match = cur_regex.match(new_name)
if not match:
continue
result = ParseResult(new_name)
result.which_regex = [cur_regex_name]
result.score = 0 - cur_regex_num
named_groups = match.groupdict().keys()
if 'series_name' in named_groups:
result.series_name = match.group('series_name')
if result.series_name:
result.series_name = self.clean_series_name(result.series_name)
result.score += 1
if 'series_num' in named_groups and match.group('series_num'):
result.score += 1
if 'season_num' in named_groups:
tmp_season = int(match.group('season_num'))
if 'bare' == cur_regex_name and tmp_season in (19, 20):
continue
result.season_number = tmp_season
result.score += 1
def _process_epnum(captures, capture_names, grp_name, extra_grp_name, ep_numbers, parse_result):
ep_num = self._convert_number(captures.group(grp_name))
extra_grp_name = 'extra_%s' % extra_grp_name
ep_numbers = '%sepisode_numbers' % ep_numbers
if extra_grp_name in capture_names and captures.group(extra_grp_name):
try:
if hasattr(self.showObj, 'getEpisode'):
ep = self.showObj.getEpisode(parse_result.season_number, ep_num)
else:
tmp_show = helpers.get_show(parse_result.series_name, True, False)
if tmp_show and hasattr(tmp_show, 'getEpisode'):
ep = tmp_show.getEpisode(parse_result.season_number, ep_num)
else:
ep = None
except:
ep = None
en = ep and ep.name and re.match(r'^\W*(\d+)', ep.name) or None
es = en and en.group(1) or None
extra_ep_num = self._convert_number(captures.group(extra_grp_name))
parse_result.__dict__[ep_numbers] = range(ep_num, extra_ep_num + 1) if not (
ep and es and es != captures.group(extra_grp_name)) and (
0 < extra_ep_num - ep_num < 10) else [ep_num]
parse_result.score += 1
else:
parse_result.__dict__[ep_numbers] = [ep_num]
parse_result.score += 1
return parse_result
if 'ep_num' in named_groups:
result = _process_epnum(match, named_groups, 'ep_num', 'ep_num', '', result)
if 'ep_ab_num' in named_groups:
result = _process_epnum(match, named_groups, 'ep_ab_num', 'ab_ep_num', 'ab_', result)
if 'air_year' in named_groups and 'air_month' in named_groups and 'air_day' in named_groups:
year = int(match.group('air_year'))
month = int(match.group('air_month'))
day = int(match.group('air_day'))
# make an attempt to detect YYYY-DD-MM formats
if 12 < month:
tmp_month = month
month = day
day = tmp_month
try:
result.air_date = datetime.date(year, month, day)
except ValueError as e:
raise InvalidNameException(ex(e))
if 'extra_info' in named_groups:
tmp_extra_info = match.group('extra_info')
# Show.S04.Special or Show.S05.Part.2.Extras is almost certainly not every episode in the season
if tmp_extra_info and 'season_only' == cur_regex_name and re.search(
r'([. _-]|^)(special|extra)s?\w*([. _-]|$)', tmp_extra_info, re.I):
continue
result.extra_info = tmp_extra_info
result.score += 1
if 'release_group' in named_groups:
result.release_group = match.group('release_group')
result.score += 1
if 'version' in named_groups:
# assigns version to anime file if detected using anime regex. Non-anime regex receives -1
version = match.group('version')
if version:
result.version = version
else:
result.version = 1
else:
result.version = -1
if None is result.season_number and result.episode_numbers and not result.air_date and \
cur_regex_name in ['no_season', 'no_season_general', 'no_season_multi_ep'] and \
re.search(r'(?i)\bpart.?\d{1,2}\b', result.original_name):
result.season_number = 1
matches.append(result)
if len(matches):
# pick best match with highest score based on placement
best_result = max(sorted(matches, reverse=True, key=lambda x: x.which_regex), key=lambda x: x.score)
show = None
if not self.naming_pattern:
# try and create a show object for this result
show = helpers.get_show(best_result.series_name, self.try_scene_exceptions)
# confirm passed in show object indexer id matches result show object indexer id
if show and not self.testing:
if self.showObj and show.indexerid != self.showObj.indexerid:
show = None
elif not show and self.showObj:
show = self.showObj
best_result.show = show
if show and show.is_anime and 1 < len(self.compiled_regexes[1]) and 1 != regex:
continue
# if this is a naming pattern test then return best result
if not show or self.naming_pattern:
return best_result
# get quality
new_name = helpers.remove_non_release_groups(name, show.is_anime)
best_result.quality = common.Quality.nameQuality(new_name, show.is_anime)
new_episode_numbers = []
new_season_numbers = []
new_absolute_numbers = []
# if we have an air-by-date show then get the real season/episode numbers
if best_result.is_air_by_date:
airdate = best_result.air_date.toordinal()
my_db = db.DBConnection()
sql_result = my_db.select(
'SELECT season, episode FROM tv_episodes WHERE showid = ? and indexer = ? and airdate = ?',
[show.indexerid, show.indexer, airdate])
season_number = None
episode_numbers = []
if sql_result:
season_number = int(sql_result[0][0])
episode_numbers = [int(sql_result[0][1])]
if not season_number or not len(episode_numbers):
try:
lindexer_api_parms = sickbeard.indexerApi(show.indexer).api_params.copy()
if show.lang:
lindexer_api_parms['language'] = show.lang
t = sickbeard.indexerApi(show.indexer).indexer(**lindexer_api_parms)
ep_obj = t[show.indexerid].airedOn(best_result.air_date)[0]
season_number = int(ep_obj['seasonnumber'])
episode_numbers = [int(ep_obj['episodenumber'])]
except sickbeard.indexer_episodenotfound:
logger.log(u'Unable to find episode with date ' + str(best_result.air_date) + ' for show ' + show.name + ', skipping', logger.WARNING)
episode_numbers = []
except sickbeard.indexer_error as e:
logger.log(u'Unable to contact ' + sickbeard.indexerApi(show.indexer).name + ': ' + ex(e), logger.WARNING)
episode_numbers = []
for epNo in episode_numbers:
s = season_number
e = epNo
if self.convert and show.is_scene:
(s, e) = scene_numbering.get_indexer_numbering(show.indexerid,
show.indexer,
season_number,
epNo)
new_episode_numbers.append(e)
new_season_numbers.append(s)
elif show.is_anime and len(best_result.ab_episode_numbers) and not self.testing:
scene_season = scene_exceptions.get_scene_exception_by_name(best_result.series_name)[1]
for epAbsNo in best_result.ab_episode_numbers:
a = epAbsNo
if self.convert and show.is_scene:
a = scene_numbering.get_indexer_absolute_numbering(show.indexerid,
show.indexer, epAbsNo,
True, scene_season)
(s, e) = helpers.get_all_episodes_from_absolute_number(show, [a])
new_absolute_numbers.append(a)
new_episode_numbers.extend(e)
new_season_numbers.append(s)
elif best_result.season_number and len(best_result.episode_numbers) and not self.testing:
for epNo in best_result.episode_numbers:
s = best_result.season_number
e = epNo
if self.convert and show.is_scene:
(s, e) = scene_numbering.get_indexer_numbering(show.indexerid,
show.indexer,
best_result.season_number,
epNo)
if show.is_anime:
a = helpers.get_absolute_number_from_season_and_episode(show, s, e)
if a:
new_absolute_numbers.append(a)
new_episode_numbers.append(e)
new_season_numbers.append(s)
# need to do a quick sanity check heregex. It's possible that we now have episodes
# from more than one season (by tvdb numbering), and this is just too much
# for sickbeard, so we'd need to flag it.
new_season_numbers = list(set(new_season_numbers)) # remove duplicates
if 1 < len(new_season_numbers):
raise InvalidNameException('Scene numbering results episodes from '
'seasons %s, (i.e. more than one) and '
'SickGear does not support this. '
'Sorry.' % (str(new_season_numbers)))
# I guess it's possible that we'd have duplicate episodes too, so lets
# eliminate them
new_episode_numbers = list(set(new_episode_numbers))
new_episode_numbers.sort()
# maybe even duplicate absolute numbers so why not do them as well
new_absolute_numbers = list(set(new_absolute_numbers))
new_absolute_numbers.sort()
if len(new_absolute_numbers):
best_result.ab_episode_numbers = new_absolute_numbers
if len(new_season_numbers) and len(new_episode_numbers):
best_result.episode_numbers = new_episode_numbers
best_result.season_number = new_season_numbers[0]
if self.convert and show.is_scene:
logger.log(u'Converted parsed result %s into %s'
% (best_result.original_name, str(best_result).decode('utf-8', 'xmlcharrefreplace')),
logger.DEBUG)
helpers.cpu_sleep()
return best_result
@staticmethod
def _combine_results(first, second, attr):
# if the first doesn't exist then return the second or nothing
if not first:
if not second:
return None
else:
return getattr(second, attr)
# if the second doesn't exist then return the first
if not second:
return getattr(first, attr)
a = getattr(first, attr)
b = getattr(second, attr)
# if a is good use it
if None is not a or (list == type(a) and len(a)):
return a
# if not use b (if b isn't set it'll just be default)
else:
return b
@staticmethod
def _unicodify(obj, encoding='utf-8'):
if isinstance(obj, basestring):
if not isinstance(obj, unicode):
obj = unicode(obj, encoding, 'replace')
return obj
@staticmethod
def _convert_number(org_number):
"""
Convert org_number into an integer
org_number: integer or representation of a number: string or unicode
Try force converting to int first, on error try converting from Roman numerals
returns integer or 0
"""
try:
# try forcing to int
if org_number:
number = int(org_number)
else:
number = 0
except:
# on error try converting from Roman numerals
roman_to_int_map = (('M', 1000), ('CM', 900), ('D', 500), ('CD', 400), ('C', 100),
('XC', 90), ('L', 50), ('XL', 40), ('X', 10),
('IX', 9), ('V', 5), ('IV', 4), ('I', 1))
roman_numeral = str(org_number).upper()
number = 0
index = 0
for numeral, integer in roman_to_int_map:
while roman_numeral[index:index + len(numeral)] == numeral:
number += integer
index += len(numeral)
return number
def parse(self, name, cache_result=True):
name = self._unicodify(name)
if self.naming_pattern:
cache_result = False
cached = name_parser_cache.get(name)
if cached:
return cached
# break it into parts if there are any (dirname, file name, extension)
dir_name, file_name = ek.ek(os.path.split, name)
if self.file_name:
base_file_name = helpers.remove_extension(file_name)
else:
base_file_name = file_name
# set up a result to use
final_result = ParseResult(name)
# try parsing the file name
file_name_result = self._parse_string(base_file_name)
# use only the direct parent dir
dir_name = ek.ek(os.path.basename, dir_name)
# parse the dirname for extra info if needed
dir_name_result = self._parse_string(dir_name)
# build the ParseResult object
final_result.air_date = self._combine_results(file_name_result, dir_name_result, 'air_date')
# anime absolute numbers
final_result.ab_episode_numbers = self._combine_results(file_name_result, dir_name_result, 'ab_episode_numbers')
# season and episode numbers
final_result.season_number = self._combine_results(file_name_result, dir_name_result, 'season_number')
final_result.episode_numbers = self._combine_results(file_name_result, dir_name_result, 'episode_numbers')
# if the dirname has a release group/show name I believe it over the filename
final_result.series_name = self._combine_results(dir_name_result, file_name_result, 'series_name')
final_result.extra_info = self._combine_results(dir_name_result, file_name_result, 'extra_info')
final_result.release_group = self._combine_results(dir_name_result, file_name_result, 'release_group')
final_result.version = self._combine_results(dir_name_result, file_name_result, 'version')
final_result.which_regex = []
if final_result == file_name_result:
final_result.which_regex = file_name_result.which_regex
elif final_result == dir_name_result:
final_result.which_regex = dir_name_result.which_regex
else:
if file_name_result:
final_result.which_regex += file_name_result.which_regex
if dir_name_result:
final_result.which_regex += dir_name_result.which_regex
final_result.show = self._combine_results(file_name_result, dir_name_result, 'show')
final_result.quality = self._combine_results(file_name_result, dir_name_result, 'quality')
if not final_result.show:
if self.testing:
pass
else:
raise InvalidShowException('Unable to parse %s'
% name.encode(sickbeard.SYS_ENCODING, 'xmlcharrefreplace'))
# if there's no useful info in it then raise an exception
if None is final_result.season_number and not final_result.episode_numbers and None is final_result.air_date and not final_result.ab_episode_numbers and not final_result.series_name:
raise InvalidNameException('Unable to parse %s' % name.encode(sickbeard.SYS_ENCODING, 'xmlcharrefreplace'))
if cache_result:
name_parser_cache.add(name, final_result)
logger.log(u'Parsed %s into %s' % (name, str(final_result).decode('utf-8', 'xmlcharrefreplace')), logger.DEBUG)
return final_result
class ParseResult(object):
def __init__(self,
original_name,
series_name=None,
season_number=None,
episode_numbers=None,
extra_info=None,
release_group=None,
air_date=None,
ab_episode_numbers=None,
show=None,
score=None,
quality=None,
version=None):
self.original_name = original_name
self.series_name = series_name
self.season_number = season_number
if not episode_numbers:
self.episode_numbers = []
else:
self.episode_numbers = episode_numbers
if not ab_episode_numbers:
self.ab_episode_numbers = []
else:
self.ab_episode_numbers = ab_episode_numbers
if not quality:
self.quality = common.Quality.UNKNOWN
else:
self.quality = quality
self.extra_info = extra_info
self.release_group = release_group
self.air_date = air_date
self.which_regex = None
self.show = show
self.score = score
self.version = version
def __eq__(self, other):
if not other:
return False
if self.series_name != other.series_name:
return False
if self.season_number != other.season_number:
return False
if self.episode_numbers != other.episode_numbers:
return False
if self.extra_info != other.extra_info:
return False
if self.release_group != other.release_group:
return False
if self.air_date != other.air_date:
return False
if self.ab_episode_numbers != other.ab_episode_numbers:
return False
return True
def __str__(self):
if None is not self.series_name:
to_return = self.series_name + u' - '
else:
to_return = u''
if None is not self.season_number:
to_return += 'S' + str(self.season_number)
if self.episode_numbers and len(self.episode_numbers):
for e in self.episode_numbers:
to_return += 'E' + str(e)
if self.is_air_by_date:
to_return += str(self.air_date)
if self.ab_episode_numbers:
to_return += ' [ABS: %s]' % str(self.ab_episode_numbers)
if self.is_anime:
if self.version:
to_return += ' [ANIME VER: %s]' % str(self.version)
if self.release_group:
to_return += ' [GROUP: %s]' % self.release_group
to_return += ' [ABD: %s]' % str(self.is_air_by_date)
to_return += ' [ANIME: %s]' % str(self.is_anime)
to_return += ' [whichReg: %s]' % str(self.which_regex)
return to_return.encode('utf-8')
@property
def is_air_by_date(self):
if self.air_date:
return True
return False
@property
def is_anime(self):
if len(self.ab_episode_numbers):
return True
return False
class NameParserCache(object):
_previous_parsed = {}
_cache_size = 100
def add(self, name, parse_result):
self._previous_parsed[name] = parse_result
_current_cache_size = len(self._previous_parsed)
if _current_cache_size > self._cache_size:
for i in range(_current_cache_size - self._cache_size):
del self._previous_parsed[self._previous_parsed.keys()[0]]
def get(self, name):
if name in self._previous_parsed:
logger.log('Using cached parse result for: ' + name, logger.DEBUG)
return self._previous_parsed[name]
name_parser_cache = NameParserCache()
class InvalidNameException(Exception):
"""The given release name is not valid"""
class InvalidShowException(Exception):
"""The given show name is not valid"""
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