1673 lines
56 KiB
Python
1673 lines
56 KiB
Python
import bcrypt
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import copy
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import json
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import logging
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import os
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import random
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import sqlite3
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import string
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import tempfile
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import time
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from voussoirkit import cacheclass
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from voussoirkit import configlayers
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from voussoirkit import expressionmatch
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from voussoirkit import pathclass
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from voussoirkit import ratelimiter
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from voussoirkit import spinal
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from voussoirkit import sqlhelpers
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from . import constants
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from . import decorators
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from . import exceptions
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from . import helpers
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from . import objects
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from . import searchhelpers
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from . import tag_export
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####################################################################################################
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####################################################################################################
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class PDBAlbumMixin:
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def __init__(self):
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super().__init__()
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def get_album(self, id=None, path=None):
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if not helpers.is_xor(id, path):
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raise exceptions.NotExclusive(['id', 'path'])
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if id is not None:
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return self.get_album_by_id(id)
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else:
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return self.get_album_by_path(path)
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def get_album_by_id(self, id):
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return self.get_thing_by_id('album', id)
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def get_album_by_path(self, filepath):
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'''
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Return the album with the `associated_directory` of this value,
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NOT case-sensitive.
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'''
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filepath = pathclass.Path(filepath).absolute_path
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query = 'SELECT albumid FROM album_associated_directories WHERE directory == ?'
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bindings = [filepath]
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album_row = self.sql_select_one(query, bindings)
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if album_row is None:
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raise exceptions.NoSuchAlbum(filepath)
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album_id = album_row[0]
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return self.get_album(album_id)
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def get_albums(self):
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yield from self.get_things(thing_type='album')
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def get_albums_by_id(self, ids):
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return self.get_things_by_id('album', ids)
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def get_root_albums(self):
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'''
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Yield Albums that have no parent.
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'''
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yield from self.get_root_things('album')
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@decorators.required_feature('album.new')
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@decorators.transaction
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def new_album(
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self,
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title=None,
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description=None,
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*,
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associated_directory=None,
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author=None,
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photos=None,
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):
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'''
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Create a new album. Photos can be added now or later.
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'''
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# These might raise exceptions.
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title = objects.Album.normalize_title(title)
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description = objects.Album.normalize_description(description)
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# Ok.
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album_id = self.generate_id(table='albums')
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self.log.debug('New Album: %s %s', album_id, title)
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author_id = self.get_user_id_or_none(author)
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data = {
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'id': album_id,
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'title': title,
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'description': description,
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'author_id': author_id,
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}
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self.sql_insert(table='albums', data=data)
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album = self.get_cached_instance('album', data)
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if associated_directory is not None:
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album.add_associated_directory(associated_directory)
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if photos is not None:
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photos = [self.get_photo(photo) for photo in photos]
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album.add_photos(photos)
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return album
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class PDBBookmarkMixin:
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def __init__(self):
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super().__init__()
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def get_bookmark(self, id):
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return self.get_thing_by_id('bookmark', id)
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def get_bookmarks(self):
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yield from self.get_things(thing_type='bookmark')
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def get_bookmarks_by_id(self, ids):
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return self.get_things_by_id('bookmark', ids)
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@decorators.required_feature('bookmark.new')
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@decorators.transaction
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def new_bookmark(self, url, title=None, *, author=None):
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# These might raise exceptions.
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title = objects.Bookmark.normalize_title(title)
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url = objects.Bookmark.normalize_url(url)
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# Ok.
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bookmark_id = self.generate_id(table='bookmarks')
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self.log.debug('New Bookmark: %s %s %s', bookmark_id, title, url)
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author_id = self.get_user_id_or_none(author)
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data = {
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'id': bookmark_id,
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'author_id': author_id,
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'title': title,
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'url': url,
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}
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self.sql_insert(table='bookmarks', data=data)
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bookmark = self.get_cached_instance('bookmark', data)
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return bookmark
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class PDBCacheManagerMixin:
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_THING_CLASSES = {
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'album':
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{
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'class': objects.Album,
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'exception': exceptions.NoSuchAlbum,
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},
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'bookmark':
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{
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'class': objects.Bookmark,
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'exception': exceptions.NoSuchBookmark,
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},
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'photo':
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{
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'class': objects.Photo,
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'exception': exceptions.NoSuchPhoto,
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},
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'tag':
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{
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'class': objects.Tag,
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'exception': exceptions.NoSuchTag,
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},
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'user':
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{
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'class': objects.User,
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'exception': exceptions.NoSuchUser,
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}
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}
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def __init__(self):
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super().__init__()
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def get_cached_instance(self, thing_type, db_row):
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'''
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Check if there is already an instance in the cache and return that.
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Otherwise, a new instance is created, cached, and returned.
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Note that in order to call this method you have to already have a
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db_row which means performing some select. If you only have the ID,
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use get_thing_by_id, as there may already be a cached instance to save
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you the select.
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'''
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thing_map = self._THING_CLASSES[thing_type]
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thing_class = thing_map['class']
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thing_table = thing_class.table
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thing_cache = self.caches[thing_type]
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if isinstance(db_row, dict):
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thing_id = db_row['id']
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else:
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thing_index = constants.SQL_INDEX[thing_table]
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thing_id = db_row[thing_index['id']]
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try:
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thing = thing_cache[thing_id]
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except KeyError:
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thing = thing_class(self, db_row)
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thing_cache[thing_id] = thing
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return thing
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def get_root_things(self, thing_type):
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'''
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For Groupable types, yield things which have no parent.
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'''
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thing_map = self._THING_CLASSES[thing_type]
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thing_class = thing_map['class']
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thing_table = thing_class.table
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group_table = thing_class.group_table
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query = f'''
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SELECT * FROM {thing_table}
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WHERE NOT EXISTS (
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SELECT 1 FROM {group_table}
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WHERE memberid == {thing_table}.id
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)
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'''
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rows = self.sql_select(query)
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for row in rows:
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thing = self.get_cached_instance(thing_type, row)
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yield thing
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def get_thing_by_id(self, thing_type, thing_id):
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'''
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This method will first check the cache to see if there is already an
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instance with that ID, in which case we don't need to perform any SQL
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select. If it is not in the cache, then a new instance is created,
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cached, and returned.
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'''
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thing_map = self._THING_CLASSES[thing_type]
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thing_class = thing_map['class']
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if isinstance(thing_id, thing_class):
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# This could be used to check if your old reference to an object is
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# still in the cache, or re-select it from the db to make sure it
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# still exists and re-cache.
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# Probably an uncommon need but... no harm I think.
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thing_id = thing_id.id
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thing_cache = self.caches[thing_type]
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try:
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return thing_cache[thing_id]
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except KeyError:
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pass
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query = f'SELECT * FROM {thing_class.table} WHERE id == ?'
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bindings = [thing_id]
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thing_row = self.sql_select_one(query, bindings)
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if thing_row is None:
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raise thing_map['exception'](thing_id)
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thing = thing_class(self, thing_row)
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thing_cache[thing_id] = thing
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return thing
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def get_things(self, thing_type):
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'''
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Yield things, unfiltered, in whatever order they appear in the database.
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'''
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thing_map = self._THING_CLASSES[thing_type]
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table = thing_map['class'].table
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query = f'SELECT * FROM {table}'
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things = self.sql_select(query)
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for thing_row in things:
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thing = self.get_cached_instance(thing_type, thing_row)
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yield thing
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def get_things_by_id(self, thing_type, thing_ids):
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'''
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Given multiple IDs, this method will find which ones are in the cache
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and which ones need to be selected from the db.
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This is better than calling get_thing_by_id in a loop because we can
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use a single SQL select to get batches of up to 999 items.
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'''
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thing_map = self._THING_CLASSES[thing_type]
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thing_class = thing_map['class']
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thing_cache = self.caches[thing_type]
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ids_needed = set()
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for thing_id in thing_ids:
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try:
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thing = thing_cache[thing_id]
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except KeyError:
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ids_needed.add(thing_id)
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else:
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yield thing
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ids_needed = list(ids_needed)
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while ids_needed:
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# SQLite3 has a limit of 999 ? in a query, so we must batch them.
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id_batch = ids_needed[:999]
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ids_needed = ids_needed[999:]
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qmarks = ','.join('?' * len(id_batch))
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qmarks = f'({qmarks})'
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query = f'SELECT * FROM {thing_class.table} WHERE id IN {qmarks}'
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more_things = self.sql_select(query, id_batch)
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for thing_row in more_things:
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# Normally we would call `get_cached_instance` instead of
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# constructing here. But we already know for a fact that this
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# object is not in the cache because it made it past the
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# previous loop.
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thing = thing_class(self, db_row=thing_row)
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thing_cache[thing.id] = thing
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yield thing
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class PDBPhotoMixin:
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def __init__(self):
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super().__init__()
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def assert_no_such_photo_by_path(self, filepath):
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try:
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existing = self.get_photo_by_path(filepath)
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except exceptions.NoSuchPhoto:
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return
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else:
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raise exceptions.PhotoExists(existing)
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def get_photo(self, id):
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return self.get_thing_by_id('photo', id)
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def get_photo_by_path(self, filepath):
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filepath = pathclass.Path(filepath)
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query = 'SELECT * FROM photos WHERE filepath == ?'
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bindings = [filepath.absolute_path]
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photo_row = self.sql_select_one(query, bindings)
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if photo_row is None:
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raise exceptions.NoSuchPhoto(filepath)
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photo = self.get_cached_instance('photo', photo_row)
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return photo
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def get_photos_by_id(self, ids):
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return self.get_things_by_id('photo', ids)
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def get_photos_by_recent(self, count=None):
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'''
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Yield photo objects in order of creation time.
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'''
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if count is not None and count <= 0:
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return
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query = 'SELECT * FROM photos ORDER BY created DESC'
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photo_rows = self.sql_select(query)
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for photo_row in photo_rows:
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photo = self.get_cached_instance('photo', photo_row)
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yield photo
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if count is None:
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continue
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count -= 1
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if count <= 0:
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break
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@decorators.required_feature('photo.new')
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@decorators.transaction
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def new_photo(
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self,
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filepath,
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*,
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allow_duplicates=False,
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author=None,
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do_metadata=True,
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do_thumbnail=True,
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searchhidden=False,
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tags=None,
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):
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'''
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Given a filepath, determine its attributes and create a new Photo object
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in the database. Tags may be applied now or later.
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If `allow_duplicates` is False, we will first check the database for any
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files with the same path and raise exceptions.PhotoExists if found.
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Returns the Photo object.
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'''
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# These might raise exceptions
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filepath = pathclass.Path(filepath)
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if not filepath.is_file:
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raise FileNotFoundError(filepath.absolute_path)
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if not allow_duplicates:
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self.assert_no_such_photo_by_path(filepath=filepath)
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# Ok.
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photo_id = self.generate_id(table='photos')
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self.log.debug('New Photo: %s %s', photo_id, filepath.absolute_path)
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author_id = self.get_user_id_or_none(author)
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data = {
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'id': photo_id,
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'filepath': filepath.absolute_path,
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'override_filename': None,
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'extension': filepath.extension.no_dot,
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'created': helpers.now(),
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'tagged_at': None,
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'author_id': author_id,
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'searchhidden': searchhidden,
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# These will be filled in during the metadata stage.
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'bytes': None,
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'width': None,
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'height': None,
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'area': None,
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'ratio': None,
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'duration': None,
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'thumbnail': None,
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}
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self.sql_insert(table='photos', data=data)
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photo = self.get_cached_instance('photo', data)
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if do_metadata:
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photo.reload_metadata()
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if do_thumbnail:
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photo.generate_thumbnail()
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tags = tags or []
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tags = [self.get_tag(name=tag) for tag in tags]
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for tag in tags:
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photo.add_tag(tag)
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return photo
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|
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@decorators.transaction
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def purge_deleted_files(self, photos=None):
|
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'''
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Delete Photos whose corresponding file on disk is missing.
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photos:
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An iterable of Photo objects to check.
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If not provided, all photos are checked.
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'''
|
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if photos is None:
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photos = self.get_photos_by_recent()
|
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|
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for photo in photos:
|
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if photo.real_path.exists:
|
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continue
|
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photo.delete()
|
|
|
|
@decorators.transaction
|
|
def purge_empty_albums(self, albums=None):
|
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if albums is None:
|
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to_check = set(self.get_albums())
|
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else:
|
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to_check = set()
|
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for album in albums:
|
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to_check.update(album.walk_children())
|
|
|
|
while to_check:
|
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album = to_check.pop()
|
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if album.get_children() or album.get_photos():
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continue
|
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# This may have been the last child of an otherwise empty parent.
|
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to_check.update(album.get_parents())
|
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album.delete()
|
|
|
|
def search(
|
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self,
|
|
*,
|
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area=None,
|
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width=None,
|
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height=None,
|
|
ratio=None,
|
|
bytes=None,
|
|
duration=None,
|
|
|
|
author=None,
|
|
created=None,
|
|
extension=None,
|
|
extension_not=None,
|
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filename=None,
|
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has_tags=None,
|
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has_thumbnail=None,
|
|
is_searchhidden=False,
|
|
mimetype=None,
|
|
tag_musts=None,
|
|
tag_mays=None,
|
|
tag_forbids=None,
|
|
tag_expression=None,
|
|
|
|
limit=None,
|
|
offset=None,
|
|
orderby=None,
|
|
warning_bag=None,
|
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give_back_parameters=False,
|
|
):
|
|
'''
|
|
PHOTO PROPERTIES
|
|
area, width, height, ratio, bytes, duration:
|
|
A hyphen_range string representing min and max. Or just a number
|
|
for lower bound.
|
|
|
|
TAGS AND FILTERS
|
|
author:
|
|
A list of User objects, or usernames, or user ids.
|
|
|
|
created:
|
|
A hyphen_range string respresenting min and max. Or just a number
|
|
for lower bound.
|
|
|
|
extension:
|
|
A string or list of strings of acceptable file extensions.
|
|
|
|
extension_not:
|
|
A string or list of strings of unacceptable file extensions.
|
|
Including '*' will forbid all extensions
|
|
|
|
filename:
|
|
A string or list of strings in the form of an expression.
|
|
Match is CASE-INSENSITIVE.
|
|
Examples:
|
|
'.pdf AND (programming OR "survival guide")'
|
|
'.pdf programming python' (implicitly AND each term)
|
|
|
|
has_tags:
|
|
If True, require that the Photo has >=1 tag.
|
|
If False, require that the Photo has no tags.
|
|
If None, any amount is okay.
|
|
|
|
has_thumbnail:
|
|
Require a thumbnail?
|
|
If None, anything is okay.
|
|
|
|
is_searchhidden:
|
|
Find photos that are marked as searchhidden?
|
|
If True, find *only* searchhidden photos.
|
|
If False, find *only* nonhidden photos.
|
|
If None, either is okay.
|
|
Default False.
|
|
|
|
mimetype:
|
|
A string or list of strings of acceptable mimetypes.
|
|
'image', 'video', ...
|
|
Note we are only interested in the simple "video", "audio" etc.
|
|
For exact mimetypes you might as well use an extension search.
|
|
|
|
tag_musts:
|
|
A list of tag names or Tag objects.
|
|
Photos MUST have ALL tags in this list.
|
|
|
|
tag_mays:
|
|
A list of tag names or Tag objects.
|
|
Photos MUST have AT LEAST ONE tag in this list.
|
|
|
|
tag_forbids:
|
|
A list of tag names or Tag objects.
|
|
Photos MUST NOT have ANY tag in the list.
|
|
|
|
tag_expression:
|
|
A string or list of strings in the form of an expression.
|
|
Can NOT be used with the must, may, forbid style search.
|
|
Examples:
|
|
'family AND (animals OR vacation)'
|
|
'family vacation outdoors' (implicitly AND each term)
|
|
|
|
QUERY OPTIONS
|
|
limit:
|
|
The maximum number of *successful* results to yield.
|
|
|
|
offset:
|
|
How many *successful* results to skip before we start yielding.
|
|
|
|
orderby:
|
|
A list of strings like ['ratio DESC', 'created ASC'] to sort
|
|
and subsort the results.
|
|
Descending is assumed if not provided.
|
|
|
|
warning_bag:
|
|
If provided, invalid search queries will add a warning to the bag
|
|
and try their best to continue. The generator will yield the bag
|
|
back to you as the final object.
|
|
Without the bag, exceptions may be raised.
|
|
|
|
give_back_parameters:
|
|
If True, the generator's first yield will be a dictionary of all the
|
|
cleaned up, normalized parameters. The user may have given us loads
|
|
of trash, so we should show them the formatting we want.
|
|
'''
|
|
start_time = time.time()
|
|
|
|
maximums = {}
|
|
minimums = {}
|
|
searchhelpers.minmax('area', area, minimums, maximums, warning_bag=warning_bag)
|
|
searchhelpers.minmax('created', created, minimums, maximums, warning_bag=warning_bag)
|
|
searchhelpers.minmax('width', width, minimums, maximums, warning_bag=warning_bag)
|
|
searchhelpers.minmax('height', height, minimums, maximums, warning_bag=warning_bag)
|
|
searchhelpers.minmax('ratio', ratio, minimums, maximums, warning_bag=warning_bag)
|
|
searchhelpers.minmax('bytes', bytes, minimums, maximums, warning_bag=warning_bag)
|
|
searchhelpers.minmax('duration', duration, minimums, maximums, warning_bag=warning_bag)
|
|
|
|
author = searchhelpers.normalize_author(author, photodb=self, warning_bag=warning_bag)
|
|
extension = searchhelpers.normalize_extension(extension)
|
|
extension_not = searchhelpers.normalize_extension(extension_not)
|
|
filename = searchhelpers.normalize_filename(filename)
|
|
has_tags = searchhelpers.normalize_has_tags(has_tags)
|
|
has_thumbnail = searchhelpers.normalize_has_thumbnail(has_thumbnail)
|
|
is_searchhidden = searchhelpers.normalize_is_searchhidden(is_searchhidden)
|
|
mimetype = searchhelpers.normalize_extension(mimetype)
|
|
|
|
if has_tags is False:
|
|
tag_musts = None
|
|
tag_mays = None
|
|
tag_forbids = None
|
|
tag_expression = None
|
|
else:
|
|
tag_musts = searchhelpers.normalize_tagset(self, tag_musts, warning_bag=warning_bag)
|
|
tag_mays = searchhelpers.normalize_tagset(self, tag_mays, warning_bag=warning_bag)
|
|
tag_forbids = searchhelpers.normalize_tagset(self, tag_forbids, warning_bag=warning_bag)
|
|
tag_expression = searchhelpers.normalize_tag_expression(tag_expression)
|
|
|
|
if extension is not None and extension_not is not None:
|
|
extension = extension.difference(extension_not)
|
|
|
|
tags_fixed = searchhelpers.normalize_mmf_vs_expression_conflict(
|
|
tag_musts,
|
|
tag_mays,
|
|
tag_forbids,
|
|
tag_expression,
|
|
warning_bag,
|
|
)
|
|
(tag_musts, tag_mays, tag_forbids, tag_expression) = tags_fixed
|
|
|
|
if tag_expression:
|
|
frozen_children = self.get_cached_frozen_children()
|
|
tag_expression_tree = searchhelpers.tag_expression_tree_builder(
|
|
tag_expression=tag_expression,
|
|
photodb=self,
|
|
warning_bag=warning_bag,
|
|
)
|
|
if tag_expression_tree is None:
|
|
giveback_tag_expression = None
|
|
tag_expression = None
|
|
else:
|
|
giveback_tag_expression = str(tag_expression_tree)
|
|
tag_match_function = searchhelpers.tag_expression_matcher_builder(frozen_children)
|
|
else:
|
|
giveback_tag_expression = None
|
|
|
|
if has_tags is True and (tag_musts or tag_mays):
|
|
# has_tags check is redundant then, so disable it.
|
|
has_tags = None
|
|
|
|
limit = searchhelpers.normalize_limit(limit, warning_bag=warning_bag)
|
|
offset = searchhelpers.normalize_offset(offset, warning_bag=warning_bag)
|
|
orderby = searchhelpers.normalize_orderby(orderby, warning_bag=warning_bag)
|
|
|
|
if filename:
|
|
try:
|
|
filename_tree = expressionmatch.ExpressionTree.parse(filename)
|
|
filename_tree.map(lambda x: x.lower())
|
|
except expressionmatch.NoTokens:
|
|
filename_tree = None
|
|
else:
|
|
filename_tree = None
|
|
|
|
giveback_orderby = [
|
|
'%s-%s' % (column.replace('RANDOM()', 'random'), direction)
|
|
for (column, direction) in orderby
|
|
]
|
|
|
|
if not orderby:
|
|
orderby = [('created', 'desc')]
|
|
|
|
if give_back_parameters:
|
|
parameters = {
|
|
'area': area,
|
|
'width': width,
|
|
'height': height,
|
|
'ratio': ratio,
|
|
'bytes': bytes,
|
|
'duration': duration,
|
|
'author': list(author) or None,
|
|
'created': created,
|
|
'extension': list(extension) or None,
|
|
'extension_not': list(extension_not) or None,
|
|
'filename': filename or None,
|
|
'has_tags': has_tags,
|
|
'has_thumbnail': has_thumbnail,
|
|
'mimetype': list(mimetype) or None,
|
|
'tag_musts': tag_musts or None,
|
|
'tag_mays': tag_mays or None,
|
|
'tag_forbids': tag_forbids or None,
|
|
'tag_expression': giveback_tag_expression or None,
|
|
'limit': limit,
|
|
'offset': offset or None,
|
|
'orderby': giveback_orderby or None,
|
|
}
|
|
yield parameters
|
|
|
|
photo_tag_rel_exist_clauses = searchhelpers.photo_tag_rel_exist_clauses(
|
|
tag_musts,
|
|
tag_mays,
|
|
tag_forbids,
|
|
)
|
|
|
|
notnulls = set()
|
|
yesnulls = set()
|
|
wheres = []
|
|
bindings = []
|
|
|
|
if author:
|
|
author_ids = [user.id for user in author]
|
|
wheres.append(f'author_id IN {sqlhelpers.listify(author_ids)}')
|
|
|
|
if extension:
|
|
if '*' in extension:
|
|
wheres.append('extension != ""')
|
|
else:
|
|
qmarks = ', '.join('?' * len(extension))
|
|
wheres.append(f'extension IN ({qmarks})')
|
|
bindings.extend(extension)
|
|
|
|
if extension_not:
|
|
if '*' in extension_not:
|
|
wheres.append('extension == ""')
|
|
else:
|
|
qmarks = ', '.join('?' * len(extension_not))
|
|
wheres.append(f'extension NOT IN ({qmarks})')
|
|
bindings.extend(extension_not)
|
|
|
|
if mimetype:
|
|
notnulls.add('extension')
|
|
|
|
if has_tags is True:
|
|
wheres.append('EXISTS (SELECT 1 FROM photo_tag_rel WHERE photoid == photos.id)')
|
|
if has_tags is False:
|
|
wheres.append('NOT EXISTS (SELECT 1 FROM photo_tag_rel WHERE photoid == photos.id)')
|
|
|
|
if has_thumbnail is True:
|
|
notnulls.add('thumbnail')
|
|
elif has_thumbnail is False:
|
|
yesnulls.add('thumbnail')
|
|
|
|
for (column, direction) in orderby:
|
|
if column != 'RANDOM()':
|
|
notnulls.add(column)
|
|
|
|
if is_searchhidden is True:
|
|
wheres.append('searchhidden == 1')
|
|
elif is_searchhidden is False:
|
|
wheres.append('searchhidden == 0')
|
|
|
|
for column in notnulls:
|
|
wheres.append(column + ' IS NOT NULL')
|
|
for column in yesnulls:
|
|
wheres.append(column + ' IS NULL')
|
|
|
|
for (column, value) in minimums.items():
|
|
wheres.append(column + ' >= ' + str(value))
|
|
|
|
for (column, value) in maximums.items():
|
|
wheres.append(column + ' <= ' + str(value))
|
|
|
|
if photo_tag_rel_exist_clauses:
|
|
wheres.extend(photo_tag_rel_exist_clauses)
|
|
|
|
query = ['SELECT * FROM photos']
|
|
|
|
if wheres:
|
|
wheres = 'WHERE ' + ' AND '.join(wheres)
|
|
query.append(wheres)
|
|
|
|
if orderby:
|
|
orderby = [f'{column} {direction}' for (column, direction) in orderby]
|
|
orderby = ', '.join(orderby)
|
|
orderby = 'ORDER BY ' + orderby
|
|
query.append(orderby)
|
|
|
|
query = ' '.join(query)
|
|
|
|
query = f'{"-" * 80}\n{query}\n{"-" * 80}'
|
|
|
|
print(query, bindings)
|
|
#explain = self.sql_execute('EXPLAIN QUERY PLAN ' + query, bindings)
|
|
#print('\n'.join(str(x) for x in explain.fetchall()))
|
|
generator = self.sql_select(query, bindings)
|
|
seen_albums = set()
|
|
photos_received = 0
|
|
for row in generator:
|
|
photo = self.get_cached_instance('photo', row)
|
|
|
|
if mimetype and photo.simple_mimetype not in mimetype:
|
|
continue
|
|
|
|
if filename_tree and not filename_tree.evaluate(photo.basename.lower()):
|
|
continue
|
|
|
|
if tag_expression:
|
|
photo_tags = set(photo.get_tags())
|
|
success = tag_expression_tree.evaluate(
|
|
photo_tags,
|
|
match_function=tag_match_function,
|
|
)
|
|
if not success:
|
|
continue
|
|
|
|
if offset > 0:
|
|
offset -= 1
|
|
continue
|
|
|
|
if limit is not None and photos_received >= limit:
|
|
break
|
|
|
|
for album in photo.get_containing_albums():
|
|
if album not in seen_albums:
|
|
seen_albums.add(album)
|
|
yield album
|
|
|
|
photos_received += 1
|
|
yield photo
|
|
|
|
if warning_bag and warning_bag.warnings:
|
|
yield warning_bag
|
|
|
|
end_time = time.time()
|
|
print('Search took:', end_time - start_time)
|
|
|
|
|
|
class PDBSQLMixin:
|
|
def __init__(self):
|
|
super().__init__()
|
|
self.on_commit_queue = []
|
|
self.on_rollback_queue = []
|
|
self.savepoints = []
|
|
self._cached_sql_tables = None
|
|
|
|
def assert_table_exists(self, table):
|
|
if not self._cached_sql_tables:
|
|
self._cached_sql_tables = self.get_sql_tables()
|
|
if table not in self._cached_sql_tables:
|
|
raise exceptions.BadTable(table)
|
|
|
|
def commit(self, message=None):
|
|
if message is not None:
|
|
self.log.debug('Committing - %s.', message)
|
|
|
|
while len(self.on_commit_queue) > 0:
|
|
task = self.on_commit_queue.pop(-1)
|
|
if isinstance(task, str):
|
|
# savepoints.
|
|
continue
|
|
args = task.get('args', [])
|
|
kwargs = task.get('kwargs', {})
|
|
task['action'](*args, **kwargs)
|
|
|
|
self.savepoints.clear()
|
|
self.sql.commit()
|
|
|
|
def get_sql_tables(self):
|
|
query = 'SELECT name FROM sqlite_master WHERE type = "table"'
|
|
cur = self.sql_execute(query)
|
|
tables = set(row[0] for row in cur.fetchall())
|
|
return tables
|
|
|
|
def release_savepoint(self, savepoint, allow_commit=False):
|
|
'''
|
|
Releasing a savepoint removes that savepoint from the timeline, so that
|
|
you can no longer roll back to it. Then your choices are to commit
|
|
everything, or roll back to a previous point. If you release the
|
|
earliest savepoint, the database will commit.
|
|
'''
|
|
if savepoint not in self.savepoints:
|
|
self.log.warn('Tried to release nonexistent savepoint %s.', savepoint)
|
|
return
|
|
|
|
is_commit = savepoint == self.savepoints[0]
|
|
if is_commit and not allow_commit:
|
|
self.log.debug('Not committing %s without allow_commit=True.', savepoint)
|
|
return
|
|
|
|
if is_commit:
|
|
# We want to perform the on_commit_queue so let's use our commit
|
|
# method instead of allowing sql's release to commit.
|
|
self.commit()
|
|
else:
|
|
self.log.log(5, 'Releasing savepoint %s', savepoint)
|
|
self.sql_execute(f'RELEASE "{savepoint}"')
|
|
self.savepoints = helpers.slice_before(self.savepoints, savepoint)
|
|
|
|
def rollback(self, savepoint=None):
|
|
'''
|
|
Given a savepoint, roll the database back to the moment before that
|
|
savepoint was created. Keep in mind that a @transaction savepoint is
|
|
always created *before* the method actually does anything.
|
|
|
|
If no savepoint is provided then rollback the entire transaction.
|
|
'''
|
|
if savepoint is not None and savepoint not in self.savepoints:
|
|
self.log.warn('Tried to restore nonexistent savepoint %s.', savepoint)
|
|
return
|
|
|
|
if len(self.savepoints) == 0:
|
|
self.log.debug('Nothing to roll back.')
|
|
return
|
|
|
|
while len(self.on_rollback_queue) > 0:
|
|
task = self.on_rollback_queue.pop(-1)
|
|
if task == savepoint:
|
|
break
|
|
if isinstance(task, str):
|
|
# Intermediate savepoints.
|
|
continue
|
|
args = task.get('args', [])
|
|
kwargs = task.get('kwargs', {})
|
|
task['action'](*args, **kwargs)
|
|
|
|
if savepoint is not None:
|
|
self.log.debug('Rolling back to %s', savepoint)
|
|
self.sql_execute(f'ROLLBACK TO "{savepoint}"')
|
|
self.savepoints = helpers.slice_before(self.savepoints, savepoint)
|
|
self.on_commit_queue = helpers.slice_before(self.on_commit_queue, savepoint)
|
|
|
|
else:
|
|
self.log.debug('Rolling back.')
|
|
self.sql_execute('ROLLBACK')
|
|
self.savepoints.clear()
|
|
self.on_commit_queue.clear()
|
|
|
|
def savepoint(self, message=None):
|
|
savepoint_id = helpers.random_hex(length=16)
|
|
if message:
|
|
self.log.log(5, 'Savepoint %s for %s.', savepoint_id, message)
|
|
else:
|
|
self.log.log(5, 'Savepoint %s.', savepoint_id)
|
|
query = f'SAVEPOINT "{savepoint_id}"'
|
|
self.sql.execute(query)
|
|
self.savepoints.append(savepoint_id)
|
|
self.on_commit_queue.append(savepoint_id)
|
|
self.on_rollback_queue.append(savepoint_id)
|
|
return savepoint_id
|
|
|
|
def sql_delete(self, table, pairs):
|
|
self.assert_table_exists(table)
|
|
(qmarks, bindings) = sqlhelpers.delete_filler(pairs)
|
|
query = f'DELETE FROM {table} {qmarks}'
|
|
self.sql_execute(query, bindings)
|
|
|
|
def sql_execute(self, query, bindings=[]):
|
|
if bindings is None:
|
|
bindings = []
|
|
cur = self.sql.cursor()
|
|
cur.execute(query, bindings)
|
|
return cur
|
|
|
|
def sql_insert(self, table, data):
|
|
self.assert_table_exists(table)
|
|
column_names = constants.SQL_COLUMNS[table]
|
|
(qmarks, bindings) = sqlhelpers.insert_filler(column_names, data)
|
|
|
|
query = f'INSERT INTO {table} VALUES({qmarks})'
|
|
self.sql_execute(query, bindings)
|
|
|
|
def sql_select(self, query, bindings=None):
|
|
cur = self.sql_execute(query, bindings)
|
|
while True:
|
|
fetch = cur.fetchone()
|
|
if fetch is None:
|
|
break
|
|
yield fetch
|
|
|
|
def sql_select_one(self, query, bindings=None):
|
|
cur = self.sql_execute(query, bindings)
|
|
return cur.fetchone()
|
|
|
|
def sql_update(self, table, pairs, where_key):
|
|
self.assert_table_exists(table)
|
|
(qmarks, bindings) = sqlhelpers.update_filler(pairs, where_key=where_key)
|
|
query = f'UPDATE {table} {qmarks}'
|
|
self.sql_execute(query, bindings)
|
|
|
|
|
|
class PDBTagMixin:
|
|
def __init__(self):
|
|
super().__init__()
|
|
|
|
def assert_no_such_tag(self, name):
|
|
try:
|
|
existing_tag = self.get_tag_by_name(name)
|
|
except exceptions.NoSuchTag:
|
|
return
|
|
else:
|
|
raise exceptions.TagExists(existing_tag)
|
|
|
|
def get_all_tag_names(self):
|
|
'''
|
|
Return a list containing the names of all tags as strings.
|
|
Useful for when you don't want the overhead of actual Tag objects.
|
|
'''
|
|
query = 'SELECT name FROM tags'
|
|
rows = self.sql_select(query)
|
|
names = [row[0] for row in rows]
|
|
return names
|
|
|
|
def get_all_synonyms(self):
|
|
'''
|
|
Return a dict mapping {synonym: mastertag} as strings.
|
|
'''
|
|
query = 'SELECT name, mastername FROM tag_synonyms'
|
|
rows = self.sql_select(query)
|
|
synonyms = {syn: tag for (syn, tag) in rows}
|
|
return synonyms
|
|
|
|
def get_root_tags(self):
|
|
'''
|
|
Yield Tags that have no parent.
|
|
'''
|
|
yield from self.get_root_things('tag')
|
|
|
|
def get_tag(self, name=None, id=None):
|
|
'''
|
|
Redirect to get_tag_by_id or get_tag_by_name.
|
|
'''
|
|
if not helpers.is_xor(id, name):
|
|
raise exceptions.NotExclusive(['id', 'name'])
|
|
|
|
if id is not None:
|
|
return self.get_tag_by_id(id)
|
|
else:
|
|
return self.get_tag_by_name(name)
|
|
|
|
def get_tag_by_id(self, id):
|
|
return self.get_thing_by_id('tag', thing_id=id)
|
|
|
|
def get_tag_by_name(self, tagname):
|
|
if isinstance(tagname, objects.Tag):
|
|
if tagname.photodb == self:
|
|
return tagname
|
|
tagname = tagname.tagname
|
|
|
|
try:
|
|
# TODO: this logic is flawed because tags that were created in
|
|
# the past may have had different normalization.
|
|
# At the same time, I don't want to just pass the input directly
|
|
# into the query, we should still do SOME assumed normalization
|
|
# like whitespace strip.
|
|
tagname = self.normalize_tagname(tagname)
|
|
except (exceptions.TagTooShort, exceptions.TagTooLong):
|
|
raise exceptions.NoSuchTag(tagname)
|
|
|
|
while True:
|
|
# Return if it's a toplevel...
|
|
tag_row = self.sql_select_one('SELECT * FROM tags WHERE name == ?', [tagname])
|
|
if tag_row is not None:
|
|
break
|
|
|
|
# ...or resolve the synonym and try again.
|
|
query = 'SELECT mastername FROM tag_synonyms WHERE name == ?'
|
|
bindings = [tagname]
|
|
name_row = self.sql_select_one(query, bindings)
|
|
if name_row is None:
|
|
# was not a master tag or synonym
|
|
raise exceptions.NoSuchTag(tagname)
|
|
tagname = name_row[0]
|
|
|
|
tag = self.get_cached_instance('tag', tag_row)
|
|
return tag
|
|
|
|
def get_tags(self):
|
|
'''
|
|
Yield all Tags in the database.
|
|
'''
|
|
yield from self.get_things(thing_type='tag')
|
|
|
|
def get_tags_by_id(self, ids):
|
|
return self.get_things_by_id('tag', ids)
|
|
|
|
@decorators.required_feature('tag.new')
|
|
@decorators.transaction
|
|
def new_tag(self, tagname, description=None, *, author=None):
|
|
'''
|
|
Register a new tag and return the Tag object.
|
|
'''
|
|
# These might raise exceptions.
|
|
tagname = self.normalize_tagname(tagname)
|
|
self.assert_no_such_tag(name=tagname)
|
|
|
|
description = objects.Tag.normalize_description(description)
|
|
|
|
# Ok.
|
|
tag_id = self.generate_id(table='tags')
|
|
self.log.debug('New Tag: %s %s', tag_id, tagname)
|
|
|
|
author_id = self.get_user_id_or_none(author)
|
|
|
|
self._uncache()
|
|
|
|
data = {
|
|
'id': tag_id,
|
|
'name': tagname,
|
|
'description': description,
|
|
'author_id': author_id,
|
|
}
|
|
self.sql_insert(table='tags', data=data)
|
|
|
|
tag = self.get_cached_instance('tag', data)
|
|
|
|
return tag
|
|
|
|
def normalize_tagname(self, tagname):
|
|
tagname = objects.Tag.normalize_name(
|
|
tagname,
|
|
valid_chars=self.config['tag']['valid_chars'],
|
|
min_length=self.config['tag']['min_length'],
|
|
max_length=self.config['tag']['max_length'],
|
|
)
|
|
return tagname
|
|
|
|
|
|
class PDBUserMixin:
|
|
def __init__(self):
|
|
super().__init__()
|
|
|
|
def assert_no_such_user(self, username):
|
|
try:
|
|
existing_user = self.get_user(username=username)
|
|
except exceptions.NoSuchUser:
|
|
return
|
|
else:
|
|
raise exceptions.UserExists(existing_user)
|
|
|
|
def assert_valid_password(self, password):
|
|
if len(password) < self.config['user']['min_password_length']:
|
|
raise exceptions.PasswordTooShort(min_length=self.config['user']['min_password_length'])
|
|
|
|
def assert_valid_username(self, username):
|
|
if len(username) < self.config['user']['min_username_length']:
|
|
raise exceptions.UsernameTooShort(
|
|
username=username,
|
|
min_length=self.config['user']['min_username_length']
|
|
)
|
|
|
|
if len(username) > self.config['user']['max_username_length']:
|
|
raise exceptions.UsernameTooLong(
|
|
username=username,
|
|
max_length=self.config['user']['max_username_length']
|
|
)
|
|
|
|
badchars = [c for c in username if c not in self.config['user']['valid_chars']]
|
|
if badchars:
|
|
raise exceptions.InvalidUsernameChars(username=username, badchars=badchars)
|
|
|
|
def generate_user_id(self):
|
|
'''
|
|
User IDs are randomized instead of integers like the other objects,
|
|
so they get their own method.
|
|
'''
|
|
possible = string.digits + string.ascii_uppercase
|
|
for retry in range(20):
|
|
user_id = [random.choice(possible) for x in range(self.config['id_length'])]
|
|
user_id = ''.join(user_id)
|
|
|
|
user_exists = self.sql_select_one('SELECT 1 FROM users WHERE id == ?', [user_id])
|
|
if user_exists is None:
|
|
break
|
|
else:
|
|
raise Exception('Failed to create user id after 20 tries.')
|
|
|
|
return user_id
|
|
|
|
def get_user(self, username=None, id=None):
|
|
if not helpers.is_xor(id, username):
|
|
raise exceptions.NotExclusive(['id', 'username'])
|
|
|
|
if username is not None:
|
|
user_row = self.sql_select_one('SELECT * FROM users WHERE username == ?', [username])
|
|
else:
|
|
user_row = self.sql_select_one('SELECT * FROM users WHERE id == ?', [id])
|
|
|
|
if user_row is not None:
|
|
return self.get_cached_instance('user', user_row)
|
|
else:
|
|
raise exceptions.NoSuchUser(username or id)
|
|
|
|
def get_user_id_or_none(self, user_obj_or_id):
|
|
'''
|
|
For methods that create photos, albums, etc., we sometimes associate
|
|
them with an author but sometimes not. The callers of those methods
|
|
might be trying to submit a User object, or a user's ID, or maybe they
|
|
left it None.
|
|
This method converts those inputs into a User's ID if possible, or else
|
|
returns None, hiding validation that those methods would otherwise have
|
|
to duplicate.
|
|
Exceptions like NoSuchUser can still be raised if the input appears to
|
|
be workable but fails.
|
|
'''
|
|
if user_obj_or_id is None:
|
|
author_id = None
|
|
|
|
elif isinstance(user_obj_or_id, objects.User):
|
|
if user_obj_or_id.photodb != self:
|
|
raise ValueError('That user does not belong to this photodb')
|
|
author_id = user_obj_or_id.id
|
|
|
|
elif isinstance(user_obj_or_id, str):
|
|
# Confirm that this string is a valid ID and not junk.
|
|
author_id = self.get_user(id=user_obj_or_id).id
|
|
|
|
else:
|
|
raise TypeError(f'Unworkable type {type(user_obj_or_id)}')
|
|
|
|
return author_id
|
|
|
|
def get_users(self):
|
|
yield from self.get_things('user')
|
|
|
|
@decorators.required_feature('user.login')
|
|
def login(self, user_id, password):
|
|
'''
|
|
Return the User object for the user if the credentials are correct.
|
|
'''
|
|
user_row = self.sql_select_one('SELECT * FROM users WHERE id == ?', [user_id])
|
|
|
|
if user_row is None:
|
|
raise exceptions.WrongLogin()
|
|
|
|
if not isinstance(password, bytes):
|
|
password = password.encode('utf-8')
|
|
|
|
user = self.get_cached_instance('user', user_row)
|
|
|
|
success = bcrypt.checkpw(password, user.password_hash)
|
|
if not success:
|
|
raise exceptions.WrongLogin()
|
|
|
|
return user
|
|
|
|
@decorators.required_feature('user.new')
|
|
@decorators.transaction
|
|
def new_user(self, username, password, *, display_name=None):
|
|
# These might raise exceptions.
|
|
self.assert_valid_username(username)
|
|
|
|
if not isinstance(password, bytes):
|
|
password = password.encode('utf-8')
|
|
|
|
self.assert_valid_password(password)
|
|
self.assert_no_such_user(username=username)
|
|
|
|
display_name = objects.User.normalize_display_name(
|
|
display_name,
|
|
max_length=self.config['user']['max_display_name_length'],
|
|
)
|
|
|
|
# Ok.
|
|
user_id = self.generate_user_id()
|
|
self.log.debug('New User: %s %s', user_id, username)
|
|
|
|
hashed_password = bcrypt.hashpw(password, bcrypt.gensalt())
|
|
|
|
data = {
|
|
'id': user_id,
|
|
'username': username,
|
|
'password': hashed_password,
|
|
'created': helpers.now(),
|
|
'display_name': display_name,
|
|
}
|
|
self.sql_insert(table='users', data=data)
|
|
|
|
return self.get_cached_instance('user', data)
|
|
|
|
|
|
class PDBUtilMixin:
|
|
def __init__(self):
|
|
super().__init__()
|
|
|
|
@decorators.transaction
|
|
def digest_directory(
|
|
self,
|
|
directory,
|
|
*,
|
|
exclude_directories=None,
|
|
exclude_filenames=None,
|
|
make_albums=True,
|
|
natural_sort=True,
|
|
new_photo_kwargs={},
|
|
new_photo_ratelimit=None,
|
|
recurse=True,
|
|
):
|
|
'''
|
|
Create an album, and add the directory's contents to it recursively.
|
|
|
|
If a Photo object already exists for a file, it will be added to the
|
|
correct album.
|
|
'''
|
|
def _normalize_directory(directory):
|
|
directory = pathclass.Path(directory)
|
|
directory.assert_is_directory()
|
|
directory.correct_case()
|
|
return directory
|
|
|
|
def _normalize_exclude_directories(exclude_directories):
|
|
exclude_directories = exclude_directories or []
|
|
exclude_directories.extend(self.config['digest_exclude_dirs'])
|
|
return exclude_directories
|
|
|
|
def _normalize_exclude_filenames(exclude_filenames):
|
|
exclude_filenames = exclude_filenames or []
|
|
exclude_filenames.extend(self.config['digest_exclude_files'])
|
|
return exclude_filenames
|
|
|
|
def _normalize_new_photo_kwargs(new_photo_kwargs):
|
|
new_photo_kwargs = new_photo_kwargs.copy()
|
|
new_photo_kwargs.pop('commit', None)
|
|
new_photo_kwargs.pop('filepath', None)
|
|
return new_photo_kwargs
|
|
|
|
def _normalize_new_photo_ratelimit(new_photo_ratelimit):
|
|
if new_photo_ratelimit is None:
|
|
pass
|
|
elif isinstance(new_photo_ratelimit, ratelimiter.Ratelimiter):
|
|
pass
|
|
elif isinstance(new_photo_ratelimit, (int, float)):
|
|
new_photo_ratelimit = ratelimiter.Ratelimiter(allowance=1, period=new_photo_ratelimit)
|
|
else:
|
|
raise TypeError(new_photo_ratelimit)
|
|
return new_photo_ratelimit
|
|
|
|
def create_or_fetch_photos(filepaths, new_photo_kwargs):
|
|
'''
|
|
Given an iterable of filepaths, find the corresponding Photo object
|
|
if it exists, otherwise create it and then return it.
|
|
'''
|
|
photos = []
|
|
for filepath in filepaths:
|
|
try:
|
|
photo = self.get_photo_by_path(filepath)
|
|
except exceptions.NoSuchPhoto:
|
|
photo = self.new_photo(filepath.absolute_path, **new_photo_kwargs)
|
|
if new_photo_ratelimit is not None:
|
|
new_photo_ratelimit.limit()
|
|
|
|
photos.append(photo)
|
|
return photos
|
|
|
|
def create_or_fetch_current_album(albums_by_path, current_directory):
|
|
current_album = albums_by_path.get(current_directory.absolute_path, None)
|
|
if current_album is not None:
|
|
return current_album
|
|
|
|
try:
|
|
current_album = self.get_album_by_path(current_directory.absolute_path)
|
|
except exceptions.NoSuchAlbum:
|
|
current_album = self.new_album(
|
|
associated_directory=current_directory.absolute_path,
|
|
title=current_directory.basename,
|
|
)
|
|
albums_by_path[current_directory.absolute_path] = current_album
|
|
return current_album
|
|
|
|
def orphan_join_parent_album(albums_by_path, current_album, current_directory):
|
|
'''
|
|
If the current album is an orphan, let's check if there exists an
|
|
album for the parent directory. If so, add the current album to it.
|
|
'''
|
|
if not current_album.has_any_parent():
|
|
parent = albums_by_path.get(current_directory.parent.absolute_path, None)
|
|
if parent is not None:
|
|
parent.add_child(current_album)
|
|
|
|
directory = _normalize_directory(directory)
|
|
exclude_directories = _normalize_exclude_directories(exclude_directories)
|
|
exclude_filenames = _normalize_exclude_filenames(exclude_filenames)
|
|
new_photo_kwargs = _normalize_new_photo_kwargs(new_photo_kwargs)
|
|
new_photo_ratelimit = _normalize_new_photo_ratelimit(new_photo_ratelimit)
|
|
|
|
if make_albums:
|
|
albums_by_path = {}
|
|
main_album = create_or_fetch_current_album(albums_by_path, directory)
|
|
|
|
walk_generator = spinal.walk_generator(
|
|
directory,
|
|
exclude_directories=exclude_directories,
|
|
exclude_filenames=exclude_filenames,
|
|
recurse=recurse,
|
|
yield_style='nested',
|
|
)
|
|
|
|
for (current_directory, subdirectories, files) in walk_generator:
|
|
if natural_sort:
|
|
files = sorted(files, key=lambda f: helpers.natural_sorter(f.basename))
|
|
|
|
photos = create_or_fetch_photos(files, new_photo_kwargs=new_photo_kwargs)
|
|
|
|
if not make_albums:
|
|
continue
|
|
|
|
current_album = create_or_fetch_current_album(albums_by_path, current_directory)
|
|
orphan_join_parent_album(albums_by_path, current_album, current_directory)
|
|
|
|
current_album.add_photos(photos)
|
|
|
|
if make_albums:
|
|
return main_album
|
|
else:
|
|
return None
|
|
|
|
@decorators.transaction
|
|
def easybake(self, ebstring, author=None):
|
|
'''
|
|
Easily create tags, groups, and synonyms with a string like
|
|
"group1.group2.tag+synonym"
|
|
"family.parents.dad+father"
|
|
etc
|
|
'''
|
|
output_notes = []
|
|
|
|
def create_or_get(name):
|
|
try:
|
|
item = self.get_tag(name=name)
|
|
note = ('existing_tag', item.name)
|
|
except exceptions.NoSuchTag:
|
|
item = self.new_tag(name, author=author)
|
|
note = ('new_tag', item.name)
|
|
output_notes.append(note)
|
|
return item
|
|
|
|
(tagname, synonym, rename_to) = helpers.split_easybake_string(ebstring)
|
|
|
|
if rename_to:
|
|
tag = self.get_tag(name=tagname)
|
|
old_name = tag.name
|
|
tag.rename(rename_to)
|
|
note = ('rename_tag', f'{old_name}={tag.name}')
|
|
output_notes.append(note)
|
|
else:
|
|
tag_parts = tagname.split('.')
|
|
tags = [create_or_get(t) for t in tag_parts]
|
|
for (higher, lower) in zip(tags, tags[1:]):
|
|
try:
|
|
higher.add_child(lower)
|
|
note = ('join_group', f'{higher.name}.{lower.name}')
|
|
output_notes.append(note)
|
|
except exceptions.GroupExists:
|
|
pass
|
|
tag = tags[-1]
|
|
|
|
if synonym:
|
|
synonym = tag.add_synonym(synonym)
|
|
note = ('new_synonym', f'{tag.name}+{synonym}')
|
|
output_notes.append(note)
|
|
|
|
return output_notes
|
|
|
|
|
|
class PhotoDB(
|
|
PDBAlbumMixin,
|
|
PDBBookmarkMixin,
|
|
PDBCacheManagerMixin,
|
|
PDBPhotoMixin,
|
|
PDBSQLMixin,
|
|
PDBTagMixin,
|
|
PDBUserMixin,
|
|
PDBUtilMixin,
|
|
):
|
|
def __init__(
|
|
self,
|
|
data_directory=None,
|
|
*,
|
|
create=True,
|
|
ephemeral=False,
|
|
skip_version_check=False,
|
|
):
|
|
'''
|
|
data_directory:
|
|
This directory will contain the sql file, config file,
|
|
generated thumbnails, etc. The directory is the database for all
|
|
intents and purposes.
|
|
|
|
create:
|
|
If True, the data_directory will be created if it does not exist.
|
|
If False, we expect that data_directory and the sql file exist.
|
|
|
|
ephemeral:
|
|
Use an in-memory sql database, and a temporary directory for
|
|
everything else, so that the whole PhotoDB disappears after closing.
|
|
Requires that data_directory=None.
|
|
|
|
skip_version_check:
|
|
Skip the version check so that you don't get DatabaseOutOfDate.
|
|
Beware of modifying any data in this state.
|
|
'''
|
|
super().__init__()
|
|
|
|
ephemeral = bool(ephemeral)
|
|
if data_directory is not None and ephemeral:
|
|
raise exceptions.NotExclusive(['data_directory', 'ephemeral'])
|
|
|
|
self.ephemeral = ephemeral
|
|
|
|
# DATA DIR PREP
|
|
if data_directory is not None:
|
|
pass
|
|
elif self.ephemeral:
|
|
# In addition to the data_dir as a pathclass object, keep the
|
|
# TempDir object so we can use the cleanup method later.
|
|
self.ephemeral_directory = tempfile.TemporaryDirectory(prefix='etiquette_ephem_')
|
|
data_directory = self.ephemeral_directory.name
|
|
else:
|
|
data_directory = constants.DEFAULT_DATADIR
|
|
|
|
data_directory = helpers.remove_path_badchars(data_directory, allowed=':/\\')
|
|
self.data_directory = pathclass.Path(data_directory)
|
|
|
|
if self.data_directory.exists and not self.data_directory.is_dir:
|
|
raise exceptions.BadDataDirectory(self.data_directory.absolute_path)
|
|
|
|
# LOGGING
|
|
self.log = logging.getLogger('etiquette:%s' % self.data_directory.absolute_path)
|
|
self.log.setLevel(logging.DEBUG)
|
|
|
|
# DATABASE
|
|
if self.ephemeral:
|
|
existing_database = False
|
|
self.sql = sqlite3.connect(':memory:')
|
|
else:
|
|
self.database_filepath = self.data_directory.with_child(constants.DEFAULT_DBNAME)
|
|
existing_database = self.database_filepath.exists
|
|
|
|
if not existing_database and not create:
|
|
raise FileNotFoundError(f'"{self.data_directory}" does not exist and create is off.')
|
|
|
|
os.makedirs(self.data_directory.absolute_path, exist_ok=True)
|
|
self.sql = sqlite3.connect(self.database_filepath.absolute_path)
|
|
|
|
if existing_database:
|
|
if not skip_version_check:
|
|
self._check_version()
|
|
self._load_pragmas()
|
|
else:
|
|
self._first_time_setup()
|
|
|
|
# THUMBNAIL DIRECTORY
|
|
self.thumbnail_directory = self.data_directory.with_child(constants.DEFAULT_THUMBDIR)
|
|
os.makedirs(self.thumbnail_directory.absolute_path, exist_ok=True)
|
|
|
|
# CONFIG
|
|
self.config_filepath = self.data_directory.with_child(constants.DEFAULT_CONFIGNAME)
|
|
self.load_config()
|
|
self.log.setLevel(self.config['log_level'])
|
|
|
|
# OTHER
|
|
self._cached_frozen_children = None
|
|
|
|
self.caches = {
|
|
'album': cacheclass.Cache(maxlen=self.config['cache_size']['album']),
|
|
'bookmark': cacheclass.Cache(maxlen=self.config['cache_size']['bookmark']),
|
|
'photo': cacheclass.Cache(maxlen=self.config['cache_size']['photo']),
|
|
'tag': cacheclass.Cache(maxlen=self.config['cache_size']['tag']),
|
|
'user': cacheclass.Cache(maxlen=self.config['cache_size']['user']),
|
|
}
|
|
|
|
def _check_version(self):
|
|
'''
|
|
Compare database's user_version against constants.DATABASE_VERSION,
|
|
raising exceptions.DatabaseOutOfDate if not correct.
|
|
'''
|
|
existing = self.sql_execute('PRAGMA user_version').fetchone()[0]
|
|
if existing != constants.DATABASE_VERSION:
|
|
raise exceptions.DatabaseOutOfDate(
|
|
existing=existing,
|
|
new=constants.DATABASE_VERSION,
|
|
filepath=self.data_directory,
|
|
)
|
|
|
|
def _first_time_setup(self):
|
|
self.log.debug('Running first-time database setup.')
|
|
self.sql.executescript(constants.DB_INIT)
|
|
self.sql.commit()
|
|
|
|
def _load_pragmas(self):
|
|
self.log.debug('Reloading pragmas.')
|
|
self.sql.executescript(constants.DB_PRAGMAS)
|
|
self.sql.commit()
|
|
|
|
def __del__(self):
|
|
self.close()
|
|
|
|
def __repr__(self):
|
|
if self.ephemeral:
|
|
return 'PhotoDB(ephemeral=True)'
|
|
else:
|
|
return f'PhotoDB(data_directory={self.data_directory})'
|
|
|
|
def _uncache(self):
|
|
self._cached_frozen_children = None
|
|
|
|
def close(self):
|
|
# Wrapped in hasattr because if the object fails __init__, Python will
|
|
# still call __del__ and thus close(), even though the attributes
|
|
# we're trying to clean up never got set.
|
|
if hasattr(self, 'sql'):
|
|
self.sql.close()
|
|
|
|
if getattr(self, 'ephemeral', False):
|
|
self.ephemeral_directory.cleanup()
|
|
|
|
def generate_id(self, table):
|
|
'''
|
|
Create a new ID number that is unique to the given table.
|
|
Note that while this method may INSERT / UPDATE, it does not commit.
|
|
We'll wait for that to happen in whoever is calling us, so we know the
|
|
ID is actually used.
|
|
'''
|
|
table = table.lower()
|
|
if table not in ['photos', 'tags', 'albums', 'bookmarks']:
|
|
raise ValueError(f'Invalid table requested: {table}.')
|
|
|
|
last_id = self.sql_select_one('SELECT last_id FROM id_numbers WHERE tab == ?', [table])
|
|
if last_id is None:
|
|
# Register new value
|
|
new_id_int = 1
|
|
do_insert = True
|
|
else:
|
|
# Use database value
|
|
new_id_int = int(last_id[0]) + 1
|
|
do_insert = False
|
|
|
|
new_id = str(new_id_int).rjust(self.config['id_length'], '0')
|
|
|
|
pairs = {
|
|
'tab': table,
|
|
'last_id': new_id,
|
|
}
|
|
if do_insert:
|
|
self.sql_insert(table='id_numbers', data=pairs)
|
|
else:
|
|
self.sql_update(table='id_numbers', pairs=pairs, where_key='tab')
|
|
return new_id
|
|
|
|
def get_cached_frozen_children(self):
|
|
if self._cached_frozen_children is None:
|
|
self._cached_frozen_children = tag_export.flat_dict(self.get_tags())
|
|
return self._cached_frozen_children
|
|
|
|
def load_config(self):
|
|
(config, needs_rewrite) = configlayers.load_file(
|
|
filepath=self.config_filepath,
|
|
defaults=constants.DEFAULT_CONFIGURATION,
|
|
)
|
|
self.config = config
|
|
|
|
if needs_rewrite:
|
|
self.save_config()
|
|
|
|
def save_config(self):
|
|
with open(self.config_filepath.absolute_path, 'w', encoding='utf-8') as handle:
|
|
handle.write(json.dumps(self.config, indent=4, sort_keys=True))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
p = PhotoDB()
|
|
print(p)
|