Begin fb2 support

Fix Chinese translation

lector/readers/read_fb2.py

@@ -0,0 +1,82 @@
+# This file is a part of Lector, a Qt based ebook reader
+# Copyright (C) 2017-2018 BasioMeusPuga
+
+# 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 3 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, see <http://www.gnu.org/licenses/>.
+
+import os
+import base64
+import zipfile
+
+from bs4 import BeautifulSoup
+
+
+class FB2:
+    def __init__(self, filename):
+        self.filename = filename
+        self.zip_file = None
+        self.book = {}
+        self.xml = None
+
+    def read_fb2(self):
+        try:
+            if self.filename.endswith('.fb2.zip'):
+                this_book = zipfile.ZipFile(self.filename, mode='r', allowZip64=True)
+                for i in this_book.filelist:
+                    if os.path.splitext(i.filename)[1] == '.fb2':
+                        book_text = this_book.read(i.filename)
+                        break
+            else:
+                with open(self.filename, 'r') as book_file:
+                    book_text = book_file.read()
+
+            self.xml = BeautifulSoup(book_text, 'lxml')
+            self.generate_book_metadata()
+        except:  # Not specifying an exception type here may be justified
+            return False
+
+        return True
+
+    def generate_book_metadata(self):
+        self.book['title'] = os.path.splitext(
+            os.path.basename(self.filename))[0]
+        self.book['author'] = 'Unknown'
+        self.book['isbn'] = None
+        self.book['tags'] = None
+        self.book['cover'] = None
+        self.book['year'] = 9999
+        self.book['book_list'] = []
+
+        # TODO
+        # Look for other components of book metadata here
+        for i in self.xml.find_all():
+
+            if i.name == 'section':
+                for j in i:
+                    if j.name == 'title':
+                        this_title = j.text
+                self.book['book_list'].append(
+                    (this_title, str(i)))
+
+        # Cover Image
+        cover_image_xml = self.xml.find('coverpage')
+        for i in cover_image_xml:
+            cover_image_name = i.get('l:href')
+
+        cover_image_data = self.xml.find_all('binary')
+        for i in cover_image_data:
+
+            # TODO
+            # Account for other images as well
+            if cover_image_name.endswith(i.get('id')):
+                self.book['cover'] = base64.decodebytes(i.text.encode())