Implemented caching of image links on disk

database.py

@@ -618,6 +618,9 @@ def build_db():
 	global db_rulestate
 	db_rulestate = consistentRulestate("scrobbles",cla.checksums)
 	
+	# load cached images
+	loadCache()
+	
 		
 
 
@@ -653,6 +656,9 @@ def sync():
 	global lastsync
 	lastsync = int(datetime.datetime.now(tz=datetime.timezone.utc).timestamp())
 	log("Database saved to disk.")
+	
+	# save cached images
+	saveCache()
 			
 
 

server.py

@@ -68,7 +68,7 @@ def shutdown():
 	graceful_exit()
 	
 def graceful_exit(sig=None,frame=None):
-	urllib.request.urlopen("http://localhost:" + str(DATABASE_PORT) + "/sync")
+	urllib.request.urlopen("http://[::1]:" + str(DATABASE_PORT) + "/sync")
 	log("Server shutting down...")
 	os._exit(42)
 

utilities.py

@@ -2,6 +2,7 @@ import re
 import os
 import hashlib
 from threading import Thread
+import pickle
 
 
 ### TSV files
@@ -211,6 +212,25 @@ def apirequest(artists=None,artist=None,title=None):
 cachedTracks = {}
 cachedArtists = {}
 
+def saveCache():
+	fl = open("mediacache","wb")
+	stream = pickle.dumps((cachedTracks,cachedArtists))
+	fl.write(stream)
+	fl.close()
+	
+def loadCache():
+	try:
+		fl = open("mediacache","rb")
+	except:
+		return
+		
+	try:
+		ob = pickle.loads(fl.read())
+		global cachedTracks, cachedArtists
+		(cachedTracks, cachedArtists) = ob
+	finally:
+		fl.close()
+
 def getTrackInfo(artists,title):
 	
 	obj = (frozenset(artists),title)