Read directly from .tc database

Now takes the .tc database archive and extracts needed files
automatically, without requiring manual extraction of .xml

main.py

@@ -21,9 +21,13 @@ import xml.etree.ElementTree as ET
 import json
 import sys
 import cgitb, cgi
+import zipfile
+import tempfile
+import shutil as sh
 
 # Our custom library (again no pun intended)
 import tcparser
+import settings
 
 # Start CGI handling for webserver
 cgitb.enable()
@@ -45,8 +49,14 @@ print()
 ### End of HTTP headers:  it is now safe to output things
 ##########################################################
 
-# Get a Python-friendly library struct
-library = tcparser.getLibrary('input/tellico.xml')
+# Unzip Tellico .tc database in temporary directory
+tmpOutDir = tempfile.mkdtemp()
+zipHandler = zipfile.ZipFile(settings.path, 'r')
+zipHandler.extractall(tmpOutDir)
+zipHandler.close()
+
+# Get a Python-friendly library struct from XML file
+library = tcparser.getLibrary(tmpOutDir + "/tellico.xml")
 
 ### Get filters to search for books ###
 try:
@@ -68,3 +78,6 @@ if format == 'html':
 if format == 'json':
     # Wanna get a pretty JSON encoded library to do your nasty things offline at home? ;-)
     print(json.dumps(result, indent=4))
+
+# Delete temp files
+sh.rmtree(tmpOutDir)

settings.py

@@ -0,0 +1,4 @@
+# TPDF - Tellico Parser anD Finder -- MAIN CONFIGURATION FILE
+
+# Path to Tellico .tc database to use
+path = 'input/tellico.tc'