def get_book_info(fname):
# only handles epub, mobi and opf for now,
# for pdf see below
res = {}
if '.' not in fname:
return res
words = fname.split('.')
extn = words[len(words) - 1]
if extn == "mobi":
try:
book = Mobi(fname)
book.parse()
except:
return res
res['creator'] = book.author()
res['title'] = book.title()
res['language'] = book.language()
res['identifier'] = book.isbn()
res['type'] = "mobi"
return res
"""
# none of the pdfs in my library had language,isbn
# most didn't have author, or had the wrong author
# (author set to publisher, or software used)
# so probably not much point in looking at pdfs
#
# if (extn == "pdf"):
# pdf = PdfFileReader(open(fname, "rb"))
# txt = pdf.getDocumentInfo()
# repackage the data here to get components we need
# res = {}
# for s in ['title','language','creator']:
# res[s] = txt[s]
# res['identifier'] = txt['isbn']
# res['type'] = "pdf"
# return res
"""
if extn == "epub":
# prepare to read from the .epub file
zipdata = zipfile.ZipFile(fname)
# find the contents metafile
txt = zipdata.read('META-INF/container.xml')
tree = ElementTree.fromstring(txt)
n = 0
cfname = ""
if not len(tree):
return res
while n < len(tree[0]):
att = tree[0][n].attrib
if 'full-path' in att:
cfname = att['full-path']
n = n + 1
# grab the metadata block from the contents metafile
txt = zipdata.read(cfname)
tree = ElementTree.fromstring(txt)
res['type'] = "epub"
else:
if extn == "opf":
txt = open(fname).read()
tree = ElementTree.fromstring(txt)
res['type'] = "opf"
else:
return ""
# repackage the data
if not len(tree):
return res
n = 0
while n < len(tree[0]):
tag = str(tree[0][n].tag).split('}')[1]
txt = tree[0][n].text
attrib = str(tree[0][n].attrib)
isbn = ""
if 'title' in tag.lower():
res['title'] = txt
elif 'language' in tag.lower():
res['language'] = txt
elif 'creator' in tag.lower():
res['creator'] = txt
elif 'identifier' in tag.lower() and 'isbn' in attrib.lower():
if formatter.is_valid_isbn(txt):
res['identifier'] = txt
n = n + 1
return res
def get_book_info(fname):
# only handles epub, mobi, azw3 and opf for now,
# for pdf see notes below
res = {}
extn = os.path.splitext(fname)[1]
if not extn:
return res
if extn == ".mobi" or extn == ".azw3":
res['type'] = extn[1:]
try:
book = Mobi(fname)
book.parse()
except Exception as e:
logger.debug('Unable to parse mobi in %s, %s' % (fname, str(e)))
return res
res['creator'] = book.author()
res['title'] = book.title()
res['language'] = book.language()
res['identifier'] = book.isbn()
return res
"""
# none of the pdfs in my library had language,isbn
# most didn't have author, or had the wrong author
# (author set to publisher, or software used)
# so probably not much point in looking at pdfs
#
if (extn == ".pdf"):
pdf = PdfFileReader(open(fname, "rb"))
txt = pdf.getDocumentInfo()
# repackage the data here to get components we need
res = {}
for s in ['title','language','creator']:
res[s] = txt[s]
res['identifier'] = txt['isbn']
res['type'] = "pdf"
return res
"""
elif extn == ".epub":
res['type'] = "epub"
# prepare to read from the .epub file
try:
zipdata = zipfile.ZipFile(fname)
except Exception as e:
logger.debug('Unable to parse zipfile %s, %s' % (fname, str(e)))
return res
# find the contents metafile
txt = zipdata.read('META-INF/container.xml')
tree = ElementTree.fromstring(txt)
n = 0
cfname = ""
if not len(tree):
return res
while n < len(tree[0]):
att = tree[0][n].attrib
if 'full-path' in att:
cfname = att['full-path']
break
n = n + 1
# grab the metadata block from the contents metafile
txt = zipdata.read(cfname)
elif extn == ".opf":
res['type'] = "opf"
txt = open(fname).read()
# sanitize any unmatched html tags or ElementTree won't parse
dic = {'<br>': '', '</br>': ''}
txt = replace_all(txt, dic)
# repackage epub or opf metadata
try:
tree = ElementTree.fromstring(txt)
except Exception as e:
logger.error("Error parsing metadata from %s, %s" % (fname, str(e)))
return res
if not len(tree):
return res
n = 0
while n < len(tree[0]):
tag = str(tree[0][n].tag).lower()
if '}' in tag:
tag = tag.split('}')[1]
txt = tree[0][n].text
attrib = str(tree[0][n].attrib).lower()
if 'title' in tag:
res['title'] = txt
elif 'language' in tag:
res['language'] = txt
elif 'creator' in tag:
res['creator'] = txt
elif 'identifier' in tag and 'isbn' in attrib:
if is_valid_isbn(txt):
res['identifier'] = txt
n = n + 1
return res
