77 lines
2.3 KiB
Python
77 lines
2.3 KiB
Python
__author__ = 'lemmsh'
|
|
|
|
import logging
|
|
logger = logging.getLogger("book_formats")
|
|
|
|
import uploader
|
|
import os
|
|
try:
|
|
from wand.image import Image
|
|
use_generic_pdf_cover = False
|
|
except ImportError, e:
|
|
logger.warning('cannot import Image, generating pdf covers for pdf uploads will not work')
|
|
use_generic_pdf_cover = True
|
|
try:
|
|
from PyPDF2 import PdfFileReader
|
|
use_pdf_meta = True
|
|
except ImportError, e:
|
|
logger.warning('cannot import PyPDF2, extracting pdf metadata will not work')
|
|
use_pdf_meta = False
|
|
|
|
def process(tmp_file_path, original_file_name, original_file_extension):
|
|
if (".PDF" == original_file_extension.upper()):
|
|
return pdf_meta(tmp_file_path, original_file_name, original_file_extension)
|
|
else: return default_meta(tmp_file_path, original_file_name, original_file_extension)
|
|
|
|
|
|
|
|
def default_meta(tmp_file_path, original_file_name, original_file_extension):
|
|
return uploader.BookMeta(
|
|
file_path = tmp_file_path,
|
|
extension = original_file_extension,
|
|
title = original_file_name,
|
|
author = "Unknown",
|
|
cover = None,
|
|
description = "",
|
|
tags = "",
|
|
series = "",
|
|
series_id="")
|
|
|
|
|
|
def pdf_meta(tmp_file_path, original_file_name, original_file_extension):
|
|
|
|
if (use_pdf_meta):
|
|
pdf = PdfFileReader(open(tmp_file_path, 'rb'))
|
|
doc_info = pdf.getDocumentInfo()
|
|
else:
|
|
doc_info = None
|
|
|
|
if (doc_info is not None):
|
|
author = doc_info.author
|
|
title = doc_info.title
|
|
subject = doc_info.subject
|
|
else:
|
|
author = "Unknown"
|
|
title = original_file_name
|
|
subject = ""
|
|
return uploader.BookMeta(
|
|
file_path = tmp_file_path,
|
|
extension = original_file_extension,
|
|
title = title,
|
|
author = author,
|
|
cover = pdf_preview(tmp_file_path, original_file_name),
|
|
description = subject,
|
|
tags = "",
|
|
series = "",
|
|
series_id="")
|
|
|
|
def pdf_preview(tmp_file_path, tmp_dir):
|
|
if use_generic_pdf_cover:
|
|
return None
|
|
else:
|
|
cover_file_name = os.path.splitext(tmp_file_path)[0] + ".cover.jpg"
|
|
with Image(filename=tmp_file_path + "[0]", resolution=150) as img:
|
|
img.compression_quality = 88
|
|
img.save(filename=os.path.join(tmp_dir, cover_file_name))
|
|
return cover_file_name
|