-# -*- coding: utf-8 -*-
-#
# This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
-from __future__ import unicode_literals
-
from xml.parsers.expat import ExpatError
from datetime import date
-from functools import total_ordering
import time
import re
import six
from librarian.util import roman_to_int
from librarian import (ValidationError, NoDublinCore, ParseError, DCNS, RDFNS,
- XMLNS, WLURI, WLNS, PLMETNS)
+ XMLNS, WLNS, PLMETNS)
-import lxml.etree as etree # ElementTree API using libxml2
+import lxml.etree as etree
from lxml.etree import XMLSyntaxError
-
-class TextPlus(six.text_type):
- pass
-
-
-class DatePlus(date):
- pass
-
-
-# ==============
-# = Converters =
-# ==============
-@six.python_2_unicode_compatible
-@total_ordering
-class Person(object):
- """Single person with last name and a list of first names."""
- def __init__(self, last_name, *first_names):
- self.last_name = last_name
- self.first_names = first_names
-
- @classmethod
- def from_text(cls, text):
- parts = [token.strip() for token in text.split(',')]
- if len(parts) == 1:
- surname = parts[0]
- names = []
- elif len(parts) != 2:
- raise ValueError("Invalid person name. There should be at most one comma: \"%s\"." % text.encode('utf-8'))
- else:
- surname = parts[0]
- if len(parts[1]) == 0:
- # there is no non-whitespace data after the comma
- raise ValueError("Found a comma, but no names given: \"%s\" -> %r." % (text, parts))
- names = parts[1].split()
- return cls(surname, *names)
-
- def readable(self):
- return u" ".join(self.first_names + (self.last_name,))
-
- def __eq__(self, right):
- return self.last_name == right.last_name and self.first_names == right.first_names
-
- def __lt__(self, other):
- return (self.last_name, self.first_names) < (other.last_name, other.first_names)
-
- def __hash__(self):
- return hash((self.last_name, self.first_names))
-
- def __str__(self):
- if len(self.first_names) > 0:
- return '%s, %s' % (self.last_name, ' '.join(self.first_names))
- else:
- return self.last_name
-
- def __repr__(self):
- return 'Person(last_name=%r, first_names=*%r)' % (self.last_name, self.first_names)
-
-
-def as_date(text):
- """Dates for digitization of pictures. It seems we need the following:
-ranges: '1350-1450',
-centuries: "XVIII w.'
-half centuries/decades: '2 poł. XVIII w.', 'XVII w., l. 20'
-later-then: 'po 1450'
-circa 'ok. 1813-1814', 'ok.1876-ok.1886
-turn: 1893/1894
-for now we will translate this to some single date losing information of course.
- """
- try:
- # check out the "N. poł X w." syntax
- if isinstance(text, six.binary_type):
- text = text.decode("utf-8")
-
- century_format = u"(?:([12]) *poł[.]? +)?([MCDXVI]+) *w[.,]*(?: *l[.]? *([0-9]+))?"
- vague_format = u"(?:po *|ok. *)?([0-9]{4})(-[0-9]{2}-[0-9]{2})?"
-
- m = re.match(century_format, text)
- m2 = re.match(vague_format, text)
- if m:
- half = m.group(1)
- decade = m.group(3)
- century = roman_to_int(m.group(2))
- if half is not None:
- if decade is not None:
- raise ValueError("Bad date format. Cannot specify both half and decade of century")
- half = int(half)
- t = ((century*100 + (half-1)*50), 1, 1)
- else:
- decade = int(decade or 0)
- t = ((century*100 + decade), 1, 1)
- elif m2:
- year = m2.group(1)
- mon_day = m2.group(2)
- if mon_day:
- t = time.strptime(year + mon_day, "%Y-%m-%d")
- else:
- t = time.strptime(year, '%Y')
- else:
- raise ValueError
-
- return DatePlus(t[0], t[1], t[2])
- except ValueError as e:
- raise ValueError("Unrecognized date format. Try YYYY-MM-DD or YYYY.")
-
-
-def as_person(text):
- return Person.from_text(text)
-
-
-def as_unicode(text):
- if isinstance(text, six.text_type):
- return text
- else:
- return TextPlus(text.decode('utf-8'))
-
-
-def as_wluri_strict(text):
- return WLURI.strict(text)
+from librarian.meta.types.bool import BoolValue
+from librarian.meta.types.person import Person
+from librarian.meta.types.wluri import WLURI
+from librarian.meta.types import text
class Field(object):
- def __init__(self, uri, attr_name, validator=as_unicode, strict=None, multiple=False, salias=None, **kwargs):
+ def __init__(self, uri, attr_name, value_type=text.TextValue,
+ multiple=False, salias=None, **kwargs):
self.uri = uri
self.name = attr_name
- self.validator = validator
- self.strict = strict
+ self.value_type = value_type
self.multiple = multiple
self.salias = salias
- self.required = kwargs.get('required', True) and 'default' not in kwargs
+ self.required = (kwargs.get('required', True)
+ and 'default' not in kwargs)
self.default = kwargs.get('default', [] if multiple else [None])
def validate_value(self, val, strict=False):
- if strict and self.strict is not None:
- validator = self.strict
- else:
- validator = self.validator
+ #if strict:
+ # value.validate()
+
try:
if self.multiple:
- if validator is None:
- return val
- new_values = []
- for v in val:
- nv = v
- if v is not None:
- nv = validator(v)
- if hasattr(v, 'lang'):
- setattr(nv, 'lang', v.lang)
- new_values.append(nv)
- return new_values
+ return val
elif len(val) > 1:
- raise ValidationError("Multiple values not allowed for field '%s'" % self.uri)
+ raise ValidationError(
+ "Multiple values not allowed for field '%s'" % self.uri
+ )
elif len(val) == 0:
- raise ValidationError("Field %s has no value to assign. Check your defaults." % self.uri)
+ raise ValidationError(
+ "Field %s has no value to assign. Check your defaults."
+ % self.uri
+ )
else:
- if validator is None or val[0] is None:
- return val[0]
- nv = validator(val[0])
- if hasattr(val[0], 'lang'):
- setattr(nv, 'lang', val[0].lang)
- return nv
+ return val[0]
except ValueError as e:
- raise ValidationError("Field '%s' - invald value: %s" % (self.uri, e.message))
+ raise ValidationError(
+ "Field '%s' - invald value: %s"
+ % (self.uri, str(e))
+ )
- def validate(self, fdict, fallbacks=None, strict=False):
+ def validate(self, fdict, fallbacks=None, strict=False, validate_required=True):
if fallbacks is None:
fallbacks = {}
if self.uri not in fdict:
f = [fallbacks[self.salias]]
else:
f = self.default
- else:
+ elif validate_required:
raise ValidationError("Required field %s not found" % self.uri)
+ else:
+ return None
else:
f = fdict[self.uri]
class WorkInfo(six.with_metaclass(DCInfo, object)):
FIELDS = (
- Field(DCNS('creator'), 'authors', as_person, salias='author', multiple=True),
+ Field(DCNS('creator'), 'authors', Person, salias='author',
+ multiple=True),
Field(DCNS('title'), 'title'),
Field(DCNS('type'), 'type', required=False, multiple=True),
Field(DCNS('contributor.editor'), 'editors',
- as_person, salias='editor', multiple=True, required=False),
+ Person, salias='editor', multiple=True, required=False),
Field(DCNS('contributor.technical_editor'), 'technical_editors',
- as_person, salias='technical_editor', multiple=True, required=False),
- Field(DCNS('contributor.funding'), 'funders', salias='funder', multiple=True, required=False),
+ Person, salias='technical_editor', multiple=True,
+ required=False),
+ Field(DCNS('contributor.funding'), 'funders', salias='funder',
+ multiple=True, required=False),
Field(DCNS('contributor.thanks'), 'thanks', required=False),
Field(DCNS('date'), 'created_at'),
- Field(DCNS('date.pd'), 'released_to_public_domain_at', as_date, required=False),
+ Field(DCNS('date.pd'), 'released_to_public_domain_at',
+ required=False),
Field(DCNS('publisher'), 'publisher', multiple=True),
Field(DCNS('language'), 'language'),
Field(DCNS('description'), 'description', required=False),
Field(DCNS('source'), 'source_name', required=False),
- Field(DCNS('source.URL'), 'source_urls', salias='source_url', multiple=True, required=False),
- Field(DCNS('identifier.url'), 'url', WLURI, strict=as_wluri_strict),
+ Field(DCNS('source.URL'), 'source_urls', salias='source_url',
+ multiple=True, required=False),
+ Field(DCNS('identifier.url'), 'url', WLURI),
Field(DCNS('rights.license'), 'license', required=False),
Field(DCNS('rights'), 'license_description'),
- Field(PLMETNS('digitisationSponsor'), 'sponsors', multiple=True, required=False),
+ Field(PLMETNS('digitisationSponsor'), 'sponsors', multiple=True,
+ required=False),
Field(WLNS('digitisationSponsorNote'), 'sponsor_note', required=False),
+ Field(WLNS('contentWarning'), 'content_warnings', multiple=True,
+ required=False),
Field(WLNS('developmentStage'), 'stage', required=False),
)
+ @classmethod
+ def get_field_by_uri(cls, uri):
+ for f in cls.FIELDS:
+ if f.uri == uri:
+ return f
+
@classmethod
def from_bytes(cls, xml, *args, **kwargs):
return cls.from_file(six.BytesIO(xml), *args, **kwargs)
@classmethod
def from_element(cls, rdf_tag, *args, **kwargs):
- # the tree is already parsed, so we don't need to worry about Expat errors
+ # The tree is already parsed,
+ # so we don't need to worry about Expat errors.
field_dict = {}
desc = rdf_tag.find(".//" + RDFNS('Description'))
if desc is None:
- raise NoDublinCore("There must be a '%s' element inside the RDF." % RDFNS('Description'))
+ raise NoDublinCore(
+ "There must be a '%s' element inside the RDF."
+ % RDFNS('Description')
+ )
lang = None
p = desc
p = p.getparent()
for e in desc.getchildren():
- fv = field_dict.get(e.tag, [])
+ tag = e.tag
+ if tag == 'meta':
+ meta_id = e.attrib.get('id')
+ if meta_id and meta_id.endswith('-id'):
+ tag = meta_id
+
+ field = cls.get_field_by_uri(tag)
+ if field is None:
+ # Ignore unknown fields.
+ continue
+
+ fv = field_dict.get(tag, [])
if e.text is not None:
- text = e.text
- if not isinstance(text, six.text_type):
- text = text.decode('utf-8')
- val = TextPlus(text)
+ val = field.value_type.from_text(e.text)
val.lang = e.attrib.get(XMLNS('lang'), lang)
- if e.tag == 'meta':
- meta_id = e.attrib.get('id')
- if meta_id and meta_id.endswith('-id'):
- field_dict[meta_id] = [val.replace('ISBN-', 'ISBN ')]
else:
val = e.text
fv.append(val)
- field_dict[e.tag] = fv
+ field_dict[tag] = fv
return cls(desc.attrib, field_dict, *args, **kwargs)
- def __init__(self, rdf_attrs, dc_fields, fallbacks=None, strict=False):
- """rdf_attrs should be a dictionary-like object with any attributes of the RDF:Description.
- dc_fields - dictionary mapping DC fields (with namespace) to list of text values for the
- given field. """
+ def __init__(self, rdf_attrs, dc_fields, fallbacks=None, strict=False, validate_required=True):
+ """
+ rdf_attrs should be a dictionary-like object with any attributes
+ of the RDF:Description.
+ dc_fields - dictionary mapping DC fields (with namespace) to
+ list of text values for the given field.
+ """
self.about = rdf_attrs.get(RDFNS('about'))
self.fmap = {}
for field in self.FIELDS:
- value = field.validate(dc_fields, fallbacks=fallbacks, strict=strict)
+ value = field.validate(dc_fields, fallbacks=fallbacks,
+ strict=strict, validate_required=validate_required)
setattr(self, 'prop_' + field.name, value)
self.fmap[field.name] = field
if field.salias:
return object.__setattr__(self, name, newvalue)
def update(self, field_dict):
- """Update using field_dict. Verify correctness, but don't check if all
- required fields are present."""
+ """
+ Update using field_dict. Verify correctness, but don't check
+ if all required fields are present.
+ """
for field in self.FIELDS:
if field.name in field_dict:
setattr(self, field.name, field_dict[field.name])
class BookInfo(WorkInfo):
FIELDS = (
- Field(DCNS('audience'), 'audiences', salias='audience', multiple=True, required=False),
-
- Field(DCNS('subject.period'), 'epochs', salias='epoch', multiple=True, required=False),
- Field(DCNS('subject.type'), 'kinds', salias='kind', multiple=True, required=False),
- Field(DCNS('subject.genre'), 'genres', salias='genre', multiple=True, required=False),
-
+ Field(DCNS('audience'), 'audiences', text.Audience, salias='audience', multiple=True,
+ required=False),
+
+ Field(DCNS('subject.period'), 'epochs', text.Epoch, salias='epoch', multiple=True,
+ required=False),
+ Field(DCNS('subject.type'), 'kinds', text.Kind, salias='kind', multiple=True,
+ required=False),
+ Field(DCNS('subject.genre'), 'genres', text.Genre, salias='genre', multiple=True,
+ required=False),
+ Field(WLNS('category.legimi'), 'legimi', text.LegimiCategory, required=False),
+ Field(WLNS('category.thema'), 'thema', text.ThemaCategory, required=False, multiple=True),
Field(DCNS('subject.location'), 'location', required=False),
Field(DCNS('contributor.translator'), 'translators',
- as_person, salias='translator', multiple=True, required=False),
- Field(DCNS('relation.hasPart'), 'parts', WLURI, strict=as_wluri_strict, multiple=True, required=False),
- Field(DCNS('relation.isVariantOf'), 'variant_of', WLURI, strict=as_wluri_strict, required=False),
+ Person, salias='translator', multiple=True, required=False),
+ Field(DCNS('relation.hasPart'), 'parts', WLURI,
+ multiple=True, required=False),
+ Field(DCNS('relation.isVariantOf'), 'variant_of', WLURI,
+ required=False),
Field(DCNS('relation.coverImage.url'), 'cover_url', required=False),
- Field(DCNS('relation.coverImage.attribution'), 'cover_by', required=False),
- Field(DCNS('relation.coverImage.source'), 'cover_source', required=False),
+ Field(DCNS('relation.coverImage.attribution'), 'cover_by',
+ required=False),
+ Field(DCNS('relation.coverImage.source'), 'cover_source',
+ required=False),
# WLCover-specific.
Field(WLNS('coverBarColor'), 'cover_bar_color', required=False),
Field(WLNS('coverBoxPosition'), 'cover_box_position', required=False),
Field(WLNS('coverClass'), 'cover_class', default=['default']),
- Field(WLNS('coverLogoUrl'), 'cover_logo_urls', multiple=True, required=False),
+ Field(WLNS('coverLogoUrl'), 'cover_logo_urls', multiple=True,
+ required=False),
+ Field(WLNS('endnotes'), 'endnotes', BoolValue,
+ required=False),
Field('pdf-id', 'isbn_pdf', required=False),
Field('epub-id', 'isbn_epub', required=False),
fnp / librarian.git / blobdiff