def read_metadata(root):
ans = Metadata(_('Unknown'), [_('Unknown')])
prefixes, refines = read_prefixes(root), read_refines(root)
identifiers = read_identifiers(root, prefixes, refines)
ids = {}
for key, vals in identifiers.iteritems():
if key == 'calibre':
ans.application_id = vals[0]
elif key != 'uuid':
ids[key] = vals[0]
ans.set_identifiers(ids)
ans.title = read_title(root, prefixes, refines) or ans.title
ans.title_sort = read_title_sort(root, prefixes, refines) or ans.title_sort
ans.languages = read_languages(root, prefixes, refines) or ans.languages
auts, aus = [], []
for a in read_authors(root, prefixes, refines):
auts.append(a.name), aus.append(a.sort)
ans.authors = auts or ans.authors
ans.author_sort = authors_to_string(aus) or ans.author_sort
bkp = read_book_producers(root, prefixes, refines)
if bkp:
ans.book_producer = bkp[0]
pd = read_pubdate(root, prefixes, refines)
if not is_date_undefined(pd):
ans.pubdate = pd
ts = read_timestamp(root, prefixes, refines)
if not is_date_undefined(ts):
ans.timestamp = ts
lm = read_last_modified(root, prefixes, refines)
if not is_date_undefined(lm):
ans.last_modified = lm
return ans
def read_metadata(root, ver=None, return_extra_data=False):
ans = Metadata(_('Unknown'), [_('Unknown')])
prefixes, refines = read_prefixes(root), read_refines(root)
identifiers = read_identifiers(root, prefixes, refines)
ids = {}
for key, vals in iteritems(identifiers):
if key == 'calibre':
ans.application_id = vals[0]
elif key == 'uuid':
ans.uuid = vals[0]
else:
ids[key] = vals[0]
ans.set_identifiers(ids)
ans.title = read_title(root, prefixes, refines) or ans.title
ans.title_sort = read_title_sort(root, prefixes, refines) or ans.title_sort
ans.languages = read_languages(root, prefixes, refines) or ans.languages
auts, aus = [], []
for a in read_authors(root, prefixes, refines):
auts.append(a.name), aus.append(a.sort)
ans.authors = auts or ans.authors
ans.author_sort = authors_to_string(aus) or ans.author_sort
bkp = read_book_producers(root, prefixes, refines)
if bkp:
if bkp[0]:
ans.book_producer = bkp[0]
pd = read_pubdate(root, prefixes, refines)
if not is_date_undefined(pd):
ans.pubdate = pd
ts = read_timestamp(root, prefixes, refines)
if not is_date_undefined(ts):
ans.timestamp = ts
lm = read_last_modified(root, prefixes, refines)
if not is_date_undefined(lm):
ans.last_modified = lm
ans.comments = read_comments(root, prefixes, refines) or ans.comments
ans.publisher = read_publisher(root, prefixes, refines) or ans.publisher
ans.tags = read_tags(root, prefixes, refines) or ans.tags
ans.rating = read_rating(root, prefixes, refines) or ans.rating
s, si = read_series(root, prefixes, refines)
if s:
ans.series, ans.series_index = s, si
ans.author_link_map = read_author_link_map(root, prefixes,
refines) or ans.author_link_map
ans.user_categories = read_user_categories(root, prefixes,
refines) or ans.user_categories
for name, fm in iteritems((read_user_metadata(root, prefixes, refines)
or {})):
ans.set_user_metadata(name, fm)
if return_extra_data:
ans = ans, ver, read_raster_cover(root, prefixes,
refines), first_spine_item(
root, prefixes, refines)
return ans
def read_metadata(root):
ans = Metadata(_('Unknown'), [_('Unknown')])
prefixes, refines = read_prefixes(root), read_refines(root)
identifiers = read_identifiers(root, prefixes, refines)
ids = {}
for key, vals in identifiers.iteritems():
if key == 'calibre':
ans.application_id = vals[0]
elif key != 'uuid':
ids[key] = vals[0]
ans.set_identifiers(ids)
return ans
def test_input_meta_single(self):
stream_meta = get_metadata(self.get_stream('meta_single'))
canon_meta = Metadata('A Meta Tag & Title Ⓒ',
['George Washington'])
canon_meta.publisher = 'Publisher A'
canon_meta.languages = ['English']
canon_meta.pubdate = parse_date('2019-01-01')
canon_meta.timestamp = parse_date('2018-01-01')
canon_meta.series = 'Meta Series'
canon_meta.series_index = float(1)
# canon_meta.rating = float(0)
# canon_meta.comments = ''
canon_meta.tags = ['tag a', 'tag b']
canon_meta.set_identifiers({'isbn': '1234567890'})
self.compare_metadata(stream_meta, canon_meta)
def read_metadata(root, ver=None, return_extra_data=False):
ans = Metadata(_('Unknown'), [_('Unknown')])
prefixes, refines = read_prefixes(root), read_refines(root)
identifiers = read_identifiers(root, prefixes, refines)
ids = {}
for key, vals in identifiers.iteritems():
if key == 'calibre':
ans.application_id = vals[0]
elif key == 'uuid':
ans.uuid = vals[0]
else:
ids[key] = vals[0]
ans.set_identifiers(ids)
ans.title = read_title(root, prefixes, refines) or ans.title
ans.title_sort = read_title_sort(root, prefixes, refines) or ans.title_sort
ans.languages = read_languages(root, prefixes, refines) or ans.languages
auts, aus = [], []
for a in read_authors(root, prefixes, refines):
auts.append(a.name), aus.append(a.sort)
ans.authors = auts or ans.authors
ans.author_sort = authors_to_string(aus) or ans.author_sort
bkp = read_book_producers(root, prefixes, refines)
if bkp:
if bkp[0]:
ans.book_producer = bkp[0]
pd = read_pubdate(root, prefixes, refines)
if not is_date_undefined(pd):
ans.pubdate = pd
ts = read_timestamp(root, prefixes, refines)
if not is_date_undefined(ts):
ans.timestamp = ts
lm = read_last_modified(root, prefixes, refines)
if not is_date_undefined(lm):
ans.last_modified = lm
ans.comments = read_comments(root, prefixes, refines) or ans.comments
ans.publisher = read_publisher(root, prefixes, refines) or ans.publisher
ans.tags = read_tags(root, prefixes, refines) or ans.tags
ans.rating = read_rating(root, prefixes, refines) or ans.rating
s, si = read_series(root, prefixes, refines)
if s:
ans.series, ans.series_index = s, si
ans.author_link_map = read_author_link_map(root, prefixes, refines) or ans.author_link_map
ans.user_categories = read_user_categories(root, prefixes, refines) or ans.user_categories
for name, fm in (read_user_metadata(root, prefixes, refines) or {}).iteritems():
ans.set_user_metadata(name, fm)
if return_extra_data:
ans = ans, ver, read_raster_cover(root, prefixes, refines), first_spine_item(root, prefixes, refines)
return ans
def test_input_comment_single(self):
stream_meta = get_metadata(self.get_stream('comment_single'))
canon_meta = Metadata('A Comment Tag & Title Ⓒ',
['James Madison', 'James Monroe'])
canon_meta.publisher = 'Publisher C'
canon_meta.languages = ['French']
canon_meta.pubdate = parse_date('2015-01-01')
canon_meta.timestamp = parse_date('2014-01-01')
canon_meta.series = 'Comment Series'
canon_meta.series_index = float(3)
canon_meta.rating = float(0)
canon_meta.comments = 'comment "comments" ♥ HTML -- too &'
canon_meta.tags = ['tag d']
canon_meta.set_identifiers({
'isbn': '3456789012',
'url': 'http://google.com/search?q=calibre'
})
self.compare_metadata(stream_meta, canon_meta)
def test_input_meta_multi(self):
stream_meta = get_metadata(self.get_stream('meta_multi'))
canon_meta = Metadata(
'A Meta Tag & Title Ⓒ',
['George Washington', 'John Adams', 'Thomas Jefferson'])
canon_meta.publisher = 'Publisher A'
canon_meta.languages = ['English', 'Spanish']
canon_meta.pubdate = parse_date('2019-01-01')
canon_meta.timestamp = parse_date('2018-01-01')
canon_meta.series = 'Meta Series'
canon_meta.series_index = float(1)
canon_meta.rating = float(8)
canon_meta.comments = 'meta "comments" ♥ HTML &'
canon_meta.tags = ['tag a', 'tag b', 'tag c']
canon_meta.set_identifiers({
'isbn': '1234567890',
'url': 'http://google.com/search?q=calibre'
})
self.compare_metadata(stream_meta, canon_meta)
def metadata_from_xmp_packet(raw_bytes):
root = parse_xmp_packet(raw_bytes)
mi = Metadata(_('Unknown'))
title = first_alt('//dc:title', root)
if title:
if title.startswith(r'\376\377'):
# corrupted XMP packet generated by Nitro PDF. See
# https://bugs.launchpad.net/calibre/+bug/1541981
raise ValueError(
'Corrupted XMP metadata packet detected, probably generated by Nitro PDF'
)
mi.title = title
authors = multiple_sequences('//dc:creator', root)
if authors:
mi.authors = [au for aus in authors for au in string_to_authors(aus)]
tags = multiple_sequences('//dc:subject', root) or multiple_sequences(
'//pdf:Keywords', root)
if tags:
mi.tags = tags
comments = first_alt('//dc:description', root)
if comments:
mi.comments = comments
publishers = multiple_sequences('//dc:publisher', root)
if publishers:
mi.publisher = publishers[0]
try:
pubdate = parse_date(first_sequence('//dc:date', root)
or first_simple('//xmp:CreateDate', root),
assume_utc=False)
except:
pass
else:
mi.pubdate = pubdate
bkp = first_simple('//xmp:CreatorTool', root)
if bkp:
mi.book_producer = bkp
md = safe_parse_date(first_simple('//xmp:MetadataDate', root))
mod = safe_parse_date(first_simple('//xmp:ModifyDate', root))
fd = more_recent(md, mod)
if fd is not None:
mi.metadata_date = fd
rating = first_simple('//calibre:rating', root)
if rating is not None:
try:
rating = float(rating)
if 0 <= rating <= 10:
mi.rating = rating
except (ValueError, TypeError):
pass
series, series_index = read_series(root)
if series:
mi.series, mi.series_index = series, series_index
for x in ('title_sort', 'author_sort'):
for elem in XPath('//calibre:' + x)(root):
val = read_simple_property(elem)
if val:
setattr(mi, x, val)
break
for x in ('author_link_map', 'user_categories'):
val = first_simple('//calibre:' + x, root)
if val:
try:
setattr(mi, x, json.loads(val))
except:
pass
languages = multiple_sequences('//dc:language', root)
if languages:
languages = list(filter(None, map(canonicalize_lang, languages)))
if languages:
mi.languages = languages
identifiers = {}
for xmpid in XPath('//xmp:Identifier')(root):
for scheme, value in read_xmp_identifers(xmpid):
if scheme and value:
identifiers[scheme.lower()] = value
for namespace in ('prism', 'pdfx'):
for scheme in KNOWN_ID_SCHEMES:
if scheme not in identifiers:
val = first_simple('//%s:%s' % (namespace, scheme), root)
scheme = scheme.lower()
if scheme == 'isbn':
val = check_isbn(val)
elif scheme == 'doi':
val = check_doi(val)
if val:
identifiers[scheme] = val
# Check Dublin Core for recognizable identifier types
for scheme, check_func in iteritems({
'doi': check_doi,
'isbn': check_isbn
}):
if scheme not in identifiers:
val = check_func(first_simple('//dc:identifier', root))
if val:
identifiers['doi'] = val
if identifiers:
mi.set_identifiers(identifiers)
read_user_metadata(mi, root)
return mi
def _get_metadata(self, book_id, get_user_categories=True): # {{{
mi = Metadata(None, template_cache=self.formatter_template_cache)
author_ids = self._field_ids_for('authors', book_id)
aut_list = [self._author_data(i) for i in author_ids]
aum = []
aus = {}
aul = {}
for rec in aut_list:
aut = rec['name']
aum.append(aut)
aus[aut] = rec['sort']
aul[aut] = rec['link']
mi.title = self._field_for('title',
book_id,
default_value=_('Unknown'))
mi.authors = aum
mi.author_sort = self._field_for('author_sort',
book_id,
default_value=_('Unknown'))
mi.author_sort_map = aus
mi.author_link_map = aul
mi.comments = self._field_for('comments', book_id)
mi.publisher = self._field_for('publisher', book_id)
n = nowf()
mi.timestamp = self._field_for('timestamp', book_id, default_value=n)
mi.pubdate = self._field_for('pubdate', book_id, default_value=n)
mi.uuid = self._field_for('uuid', book_id, default_value='dummy')
mi.title_sort = self._field_for('sort',
book_id,
default_value=_('Unknown'))
mi.book_size = self._field_for('size', book_id, default_value=0)
mi.ondevice_col = self._field_for('ondevice',
book_id,
default_value='')
mi.last_modified = self._field_for('last_modified',
book_id,
default_value=n)
formats = self._field_for('formats', book_id)
mi.format_metadata = {}
mi.languages = list(self._field_for('languages', book_id))
if not formats:
good_formats = None
else:
mi.format_metadata = FormatMetadata(self, book_id, formats)
good_formats = FormatsList(formats, mi.format_metadata)
mi.formats = good_formats
mi.has_cover = _('Yes') if self._field_for(
'cover', book_id, default_value=False) else ''
mi.tags = list(self._field_for('tags', book_id, default_value=()))
mi.series = self._field_for('series', book_id)
if mi.series:
mi.series_index = self._field_for('series_index',
book_id,
default_value=1.0)
mi.rating = self._field_for('rating', book_id)
mi.set_identifiers(
self._field_for('identifiers', book_id, default_value={}))
mi.application_id = book_id
mi.id = book_id
composites = []
for key, meta in self.field_metadata.custom_iteritems():
mi.set_user_metadata(key, meta)
if meta['datatype'] == 'composite':
composites.append(key)
else:
val = self._field_for(key, book_id)
if isinstance(val, tuple):
val = list(val)
extra = self._field_for(key + '_index', book_id)
mi.set(key, val=val, extra=extra)
for key in composites:
mi.set(key, val=self._composite_for(key, book_id, mi))
user_cat_vals = {}
if get_user_categories:
user_cats = self.backend.prefs['user_categories']
for ucat in user_cats:
res = []
for name, cat, ign in user_cats[ucat]:
v = mi.get(cat, None)
if isinstance(v, list):
if name in v:
res.append([name, cat])
elif name == v:
res.append([name, cat])
user_cat_vals[ucat] = res
mi.user_categories = user_cat_vals
return mi
def _get_metadata(self, book_id, get_user_categories=True): # {{{
mi = Metadata(None, template_cache=self.formatter_template_cache)
author_ids = self._field_ids_for('authors', book_id)
aut_list = [self._author_data(i) for i in author_ids]
aum = []
aus = {}
aul = {}
for rec in aut_list:
aut = rec['name']
aum.append(aut)
aus[aut] = rec['sort']
aul[aut] = rec['link']
mi.title = self._field_for('title', book_id,
default_value=_('Unknown'))
mi.authors = aum
mi.author_sort = self._field_for('author_sort', book_id,
default_value=_('Unknown'))
mi.author_sort_map = aus
mi.author_link_map = aul
mi.comments = self._field_for('comments', book_id)
mi.publisher = self._field_for('publisher', book_id)
n = nowf()
mi.timestamp = self._field_for('timestamp', book_id, default_value=n)
mi.pubdate = self._field_for('pubdate', book_id, default_value=n)
mi.uuid = self._field_for('uuid', book_id,
default_value='dummy')
mi.title_sort = self._field_for('sort', book_id,
default_value=_('Unknown'))
mi.book_size = self._field_for('size', book_id, default_value=0)
mi.ondevice_col = self._field_for('ondevice', book_id, default_value='')
mi.last_modified = self._field_for('last_modified', book_id,
default_value=n)
formats = self._field_for('formats', book_id)
mi.format_metadata = {}
mi.languages = list(self._field_for('languages', book_id))
if not formats:
good_formats = None
else:
mi.format_metadata = FormatMetadata(self, book_id, formats)
good_formats = FormatsList(formats, mi.format_metadata)
mi.formats = good_formats
mi.has_cover = _('Yes') if self._field_for('cover', book_id,
default_value=False) else ''
mi.tags = list(self._field_for('tags', book_id, default_value=()))
mi.series = self._field_for('series', book_id)
if mi.series:
mi.series_index = self._field_for('series_index', book_id,
default_value=1.0)
mi.rating = self._field_for('rating', book_id)
mi.set_identifiers(self._field_for('identifiers', book_id,
default_value={}))
mi.application_id = book_id
mi.id = book_id
composites = []
for key, meta in self.field_metadata.custom_iteritems():
mi.set_user_metadata(key, meta)
if meta['datatype'] == 'composite':
composites.append(key)
else:
val = self._field_for(key, book_id)
if isinstance(val, tuple):
val = list(val)
extra = self._field_for(key+'_index', book_id)
mi.set(key, val=val, extra=extra)
for key in composites:
mi.set(key, val=self._composite_for(key, book_id, mi))
user_cat_vals = {}
if get_user_categories:
user_cats = self.backend.prefs['user_categories']
for ucat in user_cats:
res = []
for name,cat,ign in user_cats[ucat]:
v = mi.get(cat, None)
if isinstance(v, list):
if name in v:
res.append([name,cat])
elif name == v:
res.append([name,cat])
user_cat_vals[ucat] = res
mi.user_categories = user_cat_vals
return mi
def metadata_from_xmp_packet(raw_bytes):
root = parse_xmp_packet(raw_bytes)
mi = Metadata(_('Unknown'))
title = first_alt('//dc:title', root)
if title.startswith(r'\376\377'):
# corrupted XMP packet generated by Nitro PDF. See
# https://bugs.launchpad.net/calibre/+bug/1541981
raise ValueError('Corrupted XMP metadata packet detected, probably generated by Nitro PDF')
if title:
mi.title = title
authors = multiple_sequences('//dc:creator', root)
if authors:
mi.authors = authors
tags = multiple_sequences('//dc:subject', root) or multiple_sequences('//pdf:Keywords', root)
if tags:
mi.tags = tags
comments = first_alt('//dc:description', root)
if comments:
mi.comments = comments
publishers = multiple_sequences('//dc:publisher', root)
if publishers:
mi.publisher = publishers[0]
try:
pubdate = parse_date(first_sequence('//dc:date', root) or first_simple('//xmp:CreateDate', root), assume_utc=False)
except:
pass
else:
mi.pubdate = pubdate
bkp = first_simple('//xmp:CreatorTool', root)
if bkp:
mi.book_producer = bkp
md = safe_parse_date(first_simple('//xmp:MetadataDate', root))
mod = safe_parse_date(first_simple('//xmp:ModifyDate', root))
fd = more_recent(md, mod)
if fd is not None:
mi.metadata_date = fd
rating = first_simple('//calibre:rating', root)
if rating is not None:
try:
rating = float(rating)
if 0 <= rating <= 10:
mi.rating = rating
except (ValueError, TypeError):
pass
series, series_index = read_series(root)
if series:
mi.series, mi.series_index = series, series_index
for x in ('title_sort', 'author_sort'):
for elem in XPath('//calibre:' + x)(root):
val = read_simple_property(elem)
if val:
setattr(mi, x, val)
break
for x in ('author_link_map', 'user_categories'):
val = first_simple('//calibre:'+x, root)
if val:
try:
setattr(mi, x, json.loads(val))
except:
pass
languages = multiple_sequences('//dc:language', root)
if languages:
languages = filter(None, map(canonicalize_lang, languages))
if languages:
mi.languages = languages
identifiers = {}
for xmpid in XPath('//xmp:Identifier')(root):
for scheme, value in read_xmp_identifers(xmpid):
if scheme and value:
identifiers[scheme.lower()] = value
for namespace in ('prism', 'pdfx'):
for scheme in KNOWN_ID_SCHEMES:
if scheme not in identifiers:
val = first_simple('//%s:%s' % (namespace, scheme), root)
scheme = scheme.lower()
if scheme == 'isbn':
val = check_isbn(val)
elif scheme == 'doi':
val = check_doi(val)
if val:
identifiers[scheme] = val
# Check Dublin Core for recognizable identifier types
for scheme, check_func in {'doi':check_doi, 'isbn':check_isbn}.iteritems():
if scheme not in identifiers:
val = check_func(first_simple('//dc:identifier', root))
if val:
identifiers['doi'] = val
if identifiers:
mi.set_identifiers(identifiers)
read_user_metadata(mi, root)
return mi
def metadata_from_xmp_packet(raw_bytes):
root = parse_xmp_packet(raw_bytes)
mi = Metadata(_("Unknown"))
title = first_alt("//dc:title", root)
if title:
mi.title = title
authors = multiple_sequences("//dc:creator", root)
if authors:
mi.authors = authors
tags = multiple_sequences("//dc:subject", root) or multiple_sequences("//pdf:Keywords", root)
if tags:
mi.tags = tags
comments = first_alt("//dc:description", root)
if comments:
mi.comments = comments
publishers = multiple_sequences("//dc:publisher", root)
if publishers:
mi.publisher = publishers[0]
try:
pubdate = parse_date(
first_sequence("//dc:date", root) or first_simple("//xmp:CreateDate", root), assume_utc=False
)
except:
pass
else:
mi.pubdate = pubdate
bkp = first_simple("//xmp:CreatorTool", root)
if bkp:
mi.book_producer = bkp
md = first_simple("//xmp:MetadataDate", root)
if md:
try:
mi.metadata_date = parse_date(md)
except:
pass
rating = first_simple("//calibre:rating", root)
if rating is not None:
try:
rating = float(rating)
if 0 <= rating <= 10:
mi.rating = rating
except (ValueError, TypeError):
pass
series, series_index = read_series(root)
if series:
mi.series, mi.series_index = series, series_index
for x in ("title_sort", "author_sort"):
for elem in XPath("//calibre:" + x)(root):
val = read_simple_property(elem)
if val:
setattr(mi, x, val)
break
for x in ("author_link_map", "user_categories"):
val = first_simple("//calibre:" + x, root)
if val:
try:
setattr(mi, x, json.loads(val))
except:
pass
languages = multiple_sequences("//dc:language", root)
if languages:
languages = filter(None, map(canonicalize_lang, languages))
if languages:
mi.languages = languages
identifiers = {}
for xmpid in XPath("//xmp:Identifier")(root):
for scheme, value in read_xmp_identifers(xmpid):
if scheme and value:
identifiers[scheme.lower()] = value
for namespace in ("prism", "pdfx"):
for scheme in KNOWN_ID_SCHEMES:
if scheme not in identifiers:
val = first_simple("//%s:%s" % (namespace, scheme), root)
scheme = scheme.lower()
if scheme == "isbn":
val = check_isbn(val)
elif scheme == "doi":
val = check_doi(val)
if val:
identifiers[scheme] = val
# Check Dublin Core for recognizable identifier types
for scheme, check_func in {"doi": check_doi, "isbn": check_isbn}.iteritems():
if scheme not in identifiers:
val = check_func(first_simple("//dc:identifier", root))
if val:
identifiers["doi"] = val
if identifiers:
mi.set_identifiers(identifiers)
read_user_metadata(mi, root)
return mi
def metadata_from_xmp_packet(raw_bytes):
root = parse_xmp_packet(raw_bytes)
mi = Metadata(_('Unknown'))
title = first_alt('//dc:title', root)
if title:
mi.title = title
authors = multiple_sequences('//dc:creator', root)
if authors:
mi.authors = authors
tags = multiple_sequences('//dc:subject', root) or multiple_sequences('//pdf:Keywords', root)
if tags:
mi.tags = tags
comments = first_alt('//dc:description', root)
if comments:
mi.comments = comments
publishers = multiple_sequences('//dc:publisher', root)
if publishers:
mi.publisher = publishers[0]
try:
pubdate = parse_date(first_sequence('//dc:date', root) or first_simple('//xmp:CreateDate', root), assume_utc=False)
except:
pass
else:
mi.pubdate = pubdate
bkp = first_simple('//xmp:CreatorTool', root)
if bkp:
mi.book_producer = bkp
rating = first_simple('//calibre:rating', root)
if rating is not None:
try:
rating = float(rating)
if 0 <= rating <= 10:
mi.rating = rating
except (ValueError, TypeError):
pass
series, series_index = read_series(root)
if series:
mi.series, mi.series_index = series, series_index
for x in ('title_sort', 'author_sort'):
for elem in XPath('//calibre:' + x)(root):
val = read_simple_property(elem)
if val:
setattr(mi, x, val)
break
languages = multiple_sequences('//dc:language', root)
if languages:
languages = filter(None, map(canonicalize_lang, languages))
if languages:
mi.languages = languages
identifiers = {}
for xmpid in XPath('//xmp:Identifier')(root):
for scheme, value in read_xmp_identifers(xmpid):
if scheme and value:
identifiers[scheme.lower()] = value
for namespace in ('prism', 'pdfx'):
for scheme in KNOWN_ID_SCHEMES:
if scheme not in identifiers:
val = first_simple('//%s:%s' % (namespace, scheme), root)
scheme = scheme.lower()
if scheme == 'isbn':
val = check_isbn(val)
elif scheme == 'doi':
val = check_doi(val)
if val:
identifiers[scheme] = val
# Check Dublin Core for recognizable identifier types
for scheme, check_func in {'doi':check_doi, 'isbn':check_isbn}.iteritems():
if scheme not in identifiers:
val = check_func(first_simple('//dc:identifier', root))
if val:
identifiers['doi'] = val
if identifiers:
mi.set_identifiers(identifiers)
return mi
def metadata_from_xmp_packet(raw_bytes):
root = parse_xmp_packet(raw_bytes)
mi = Metadata(_('Unknown'))
title = first_alt('//dc:title', root)
if title:
mi.title = title
authors = multiple_sequences('//dc:creator', root)
if authors:
mi.authors = authors
tags = multiple_sequences('//dc:subject', root) or multiple_sequences(
'//pdf:Keywords', root)
if tags:
mi.tags = tags
comments = first_alt('//dc:description', root)
if comments:
mi.comments = comments
publishers = multiple_sequences('//dc:publisher', root)
if publishers:
mi.publisher = publishers[0]
try:
pubdate = parse_date(first_sequence('//dc:date', root)
or first_simple('//xmp:CreateDate', root),
assume_utc=False)
except:
pass
else:
mi.pubdate = pubdate
bkp = first_simple('//xmp:CreatorTool', root)
if bkp:
mi.book_producer = bkp
md = first_simple('//xmp:MetadataDate', root)
if md:
try:
mi.metadata_date = parse_date(md)
except:
pass
rating = first_simple('//calibre:rating', root)
if rating is not None:
try:
rating = float(rating)
if 0 <= rating <= 10:
mi.rating = rating
except (ValueError, TypeError):
pass
series, series_index = read_series(root)
if series:
mi.series, mi.series_index = series, series_index
for x in ('title_sort', 'author_sort'):
for elem in XPath('//calibre:' + x)(root):
val = read_simple_property(elem)
if val:
setattr(mi, x, val)
break
for x in ('author_link_map', 'user_categories'):
val = first_simple('//calibre:' + x, root)
if val:
try:
setattr(mi, x, json.loads(val))
except:
pass
languages = multiple_sequences('//dc:language', root)
if languages:
languages = filter(None, map(canonicalize_lang, languages))
if languages:
mi.languages = languages
identifiers = {}
for xmpid in XPath('//xmp:Identifier')(root):
for scheme, value in read_xmp_identifers(xmpid):
if scheme and value:
identifiers[scheme.lower()] = value
for namespace in ('prism', 'pdfx'):
for scheme in KNOWN_ID_SCHEMES:
if scheme not in identifiers:
val = first_simple('//%s:%s' % (namespace, scheme), root)
scheme = scheme.lower()
if scheme == 'isbn':
val = check_isbn(val)
elif scheme == 'doi':
val = check_doi(val)
if val:
identifiers[scheme] = val
# Check Dublin Core for recognizable identifier types
for scheme, check_func in {
'doi': check_doi,
'isbn': check_isbn
}.iteritems():
if scheme not in identifiers:
val = check_func(first_simple('//dc:identifier', root))
if val:
identifiers['doi'] = val
if identifiers:
mi.set_identifiers(identifiers)
read_user_metadata(mi, root)
return mi
