#!/usr/bin/env python3
# Copyright (C) 2016 J.F.Dockes
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the
# Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
# Recoll DJVU extractor
from __future__ import print_function
import os
import sys
import re
import rclexecm
import subprocess
from rclbasehandler import RclBaseHandler
class DJVUExtractor(RclBaseHandler):
def __init__(self, em):
super(DJVUExtractor, self).__init__(em)
self.djvutxt = rclexecm.which("djvutxt")
if not self.djvutxt:
print("RECFILTERROR HELPERNOTFOUND djvutxt")
sys.exit(1);
self.djvused = rclexecm.which("djvused")
def html_text(self, fn):
self.em.setmimetype('text/html')
# Extract metadata
metadata = b""
if self.djvused:
try:
metadata = subprocess.check_output(
[self.djvused, fn, "-e", "select 1;print-meta"])
except Exception as e:
self.em.rclog("djvused failed: %s" % e)
author = ""
title = ""
metadata = metadata.decode('UTF-8', 'replace')
for line in metadata.split('\n'):
line = line.split('"')
if len(line) >= 2:
nm = line[0].strip()
if nm == "author":
author = ' '.join(line[1:])
elif nm == "title":
title = ' '.join(line[1:])
# Main text
txtdata = subprocess.check_output([self.djvutxt, fn])
txtdata = txtdata.decode('UTF-8', 'replace')
data = ''''''
data += '''''' + self.em.htmlescape(title) + ''''''
data += ''''''
if author:
data += ''''''
data += ''''''
data += self.em.htmlescape(txtdata)
data += ''''''
return data
# Main program: create protocol handler and extractor and run them
proto = rclexecm.RclExecM()
extract = DJVUExtractor(proto)
rclexecm.main(proto, extract)