import re import os import hashlib from threading import Thread, Timer import pickle import json import urllib import datetime import random import itertools from doreah import settings from doreah import caching from doreah.logging import log from doreah.regular import yearly, daily from external import api_request_track, api_request_artist ##### ## SERIALIZE ##### def serialize(obj): try: return json.dumps(obj) except: if isinstance(obj,list) or isinstance(obj,tuple): return "[" + ",".join(serialize(o) for o in obj) + "]" elif isinstance(obj,dict): return "{" + ",".join(serialize(o) + ":" + serialize(obj[o]) for o in obj) + "}" return json.dumps(obj.hashable()) #if isinstance(obj,list) or if isinstance(obj,tuple): # return "[" + ",".join(dumps(o) for o in obj) + "]" #if isinstance(obj,str) ##### ## RULESTATE VALIDATION ##### def checksumTSV(folder): sums = "" for f in os.listdir(folder + "/"): if (f.endswith(".tsv")): f = open(folder + "/" + f,"rb") sums += hashlib.md5(f.read()).hexdigest() + "\n" f.close() return sums # returns whether checksums match and sets the checksum to invalid if they don't (or sets the new one if no previous one exists) def combineChecksums(filename,checksums): import os if os.path.exists(filename + ".rulestate"): f = open(filename + ".rulestate","r") oldchecksums = f.read() f.close() if oldchecksums == checksums: # the new checksum given by the calling db server represents the rule state that all current unsaved scrobbles were created under # if this is the same as the existing one, we're all good return True elif (oldchecksums != "INVALID"): #if not, the file is not consistent to any single rule state (some scrobbles were created with an old ruleset, some not) f = open(filename + ".rulestate","w") f.write("INVALID") # this will never match any sha256sum f.close() return False else: #if the file already says invalid, no need to open it and rewrite return False else: f = open(filename + ".rulestate","w") f.write(checksums) f.close() return True # checks ALL files for their rule state. if they are all the same as the current loaded one, the entire database can be assumed to be consistent with the current ruleset # in any other case, get out def consistentRulestate(folder,checksums): result = [] for scrobblefile in os.listdir(folder + "/"): if (scrobblefile.endswith(".tsv")): try: f = open(folder + "/" + scrobblefile + ".rulestate","r") if f.read() != checksums: return False except: return False finally: f.close() return True ##### ## IMAGES ##### ### Caches cacheage = settings.get_settings("CACHE_EXPIRE_POSITIVE") * 24 * 3600 cacheage_neg = settings.get_settings("CACHE_EXPIRE_NEGATIVE") * 24 * 3600 artist_cache = caching.Cache(name="imgcache_artists",maxage=cacheage,maxage_negative=cacheage_neg,persistent=True) track_cache = caching.Cache(name="imgcache_tracks",maxage=cacheage,maxage_negative=cacheage_neg,persistent=True) # removes emojis and weird shit from names def clean(name): return "".join(c for c in name if c.isalnum() or c in []).strip() def local_files(artist=None,artists=None,title=None): # check if we're dealing with a track or artist, then clean up names # (only remove non-alphanumeric, allow korean and stuff) if title is not None and artists is not None: track = True title, artists = clean(title), [clean(a) for a in artists] elif artist is not None: track = False artist = clean(artist) else: return [] superfolder = "images/tracks/" if track else "images/artists/" filenames = [] if track: #unsafeartists = [artist.translate(None,"-_./\\") for artist in artists] safeartists = [re.sub("[^a-zA-Z0-9]","",artist) for artist in artists] #unsafetitle = title.translate(None,"-_./\\") safetitle = re.sub("[^a-zA-Z0-9]","",title) if len(artists) < 4: unsafeperms = itertools.permutations(artists) safeperms = itertools.permutations(safeartists) else: unsafeperms = [sorted(artists)] safeperms = [sorted(safeartists)] for unsafeartistlist in unsafeperms: filename = "-".join(unsafeartistlist) + "_" + title if filename != "": filenames.append(filename) filenames.append(filename.lower()) for safeartistlist in safeperms: filename = "-".join(safeartistlist) + "_" + safetitle if filename != "": filenames.append(filename) filenames.append(filename.lower()) filenames = list(set(filenames)) if len(filenames) == 0: filenames.append(str(hash((frozenset(artists),title)))) else: #unsafeartist = artist.translate(None,"-_./\\") safeartist = re.sub("[^a-zA-Z0-9]","",artist) filename = artist if filename != "": filenames.append(filename) filenames.append(filename.lower()) filename = safeartist if filename != "": filenames.append(filename) filenames.append(filename.lower()) filenames = list(set(filenames)) if len(filenames) == 0: filenames.append(str(hash(artist))) images = [] for purename in filenames: # direct files for ext in ["png","jpg","jpeg","gif"]: #for num in [""] + [str(n) for n in range(0,10)]: if os.path.exists(superfolder + purename + "." + ext): images.append("/" + superfolder + purename + "." + ext) # folder try: for f in os.listdir(superfolder + purename + "/"): if f.split(".")[-1] in ["png","jpg","jpeg","gif"]: images.append("/" + superfolder + purename + "/" + f) except: pass return images # these caches are there so we don't check all files every time, but return the same one local_cache_age = settings.get_settings("LOCAL_IMAGE_ROTATE") local_artist_cache = caching.Cache(maxage=local_cache_age) local_track_cache = caching.Cache(maxage=local_cache_age) def getTrackImage(artists,title,fast=False): # obj = (frozenset(artists),title) # filename = "-".join([re.sub("[^a-zA-Z0-9]","",artist) for artist in sorted(artists)]) + "_" + re.sub("[^a-zA-Z0-9]","",title) # if filename == "": filename = str(hash(obj)) # filepath = "images/tracks/" + filename if settings.get_settings("USE_LOCAL_IMAGES"): try: return local_track_cache.get((frozenset(artists),title)) except: images = local_files(artists=artists,title=title) if len(images) != 0: #return random.choice(images) res = random.choice(images) local_track_cache.add((frozenset(artists),title),res) return urllib.parse.quote(res) # check if custom image exists # if os.path.exists(filepath + ".png"): # imgurl = "/" + filepath + ".png" # return imgurl # elif os.path.exists(filepath + ".jpg"): # imgurl = "/" + filepath + ".jpg" # return imgurl # elif os.path.exists(filepath + ".jpeg"): # imgurl = "/" + filepath + ".jpeg" # return imgurl # elif os.path.exists(filepath + ".gif"): # imgurl = "/" + filepath + ".gif" # return imgurl try: # check our cache # if we have cached the nonexistence of that image, we immediately return the redirect to the artist and let the resolver handle it # (even if we're not in a fast lookup right now) #result = cachedTracks[(frozenset(artists),title)] result = track_cache.get((frozenset(artists),title)) #track_from_cache(artists,title) if result is not None: return result else: for a in artists: res = getArtistImage(artist=a,fast=True) if res != "": return res return "" except: pass # do we have an api key? # apikey = settings.get_settings("LASTFM_API_KEY") # if apikey is None: return "" # DO NOT CACHE THAT # fast request only retuns cached and local results, generates redirect link for rest if fast: return "/image?title=" + urllib.parse.quote(title) + "&" + "&".join(["artist=" + urllib.parse.quote(a) for a in artists]) # non-fast lookup (esentially only the resolver lookup) result = api_request_track((artists,title)) # cache results (even negative ones) #cachedTracks[(frozenset(artists),title)] = result track_cache.add((frozenset(artists),title),result) #cache_track(artists,title,result) # return either result or redirect to artist if result is not None: return result else: for a in artists: res = getArtistImage(artist=a,fast=False) if res != "": return res return "" def getArtistImage(artist,fast=False): # obj = artist # filename = re.sub("[^a-zA-Z0-9]","",artist) # if filename == "": filename = str(hash(obj)) # filepath = "images/artists/" + filename # #filepath_cache = "info/artists_cache/" + filename if settings.get_settings("USE_LOCAL_IMAGES"): try: return local_artist_cache.get(artist) except: images = local_files(artist=artist) if len(images) != 0: #return random.choice(images) res = random.choice(images) local_artist_cache.add(artist,res) return urllib.parse.quote(res) # check if custom image exists # if os.path.exists(filepath + ".png"): # imgurl = "/" + filepath + ".png" # return imgurl # elif os.path.exists(filepath + ".jpg"): # imgurl = "/" + filepath + ".jpg" # return imgurl # elif os.path.exists(filepath + ".jpeg"): # imgurl = "/" + filepath + ".jpeg" # return imgurl # elif os.path.exists(filepath + ".gif"): # imgurl = "/" + filepath + ".gif" # return imgurl try: #result = cachedArtists[artist] result = artist_cache.get(artist) #artist_from_cache(artist) if result is not None: return result else: return "" except: pass # do we have an api key? # apikey = settings.get_settings("LASTFM_API_KEY") # if apikey is None: return "" # DO NOT CACHE THAT # fast request only retuns cached and local results, generates redirect link for rest if fast: return "/image?artist=" + urllib.parse.quote(artist) # non-fast lookup (esentially only the resolver lookup) result = api_request_artist(artist=artist) # cache results (even negative ones) #cachedArtists[artist] = result artist_cache.add(artist,result) #cache_artist(artist,result) if result is not None: return result else: return "" def getTrackImages(trackobjectlist,fast=False): threads = [] for track in trackobjectlist: t = Thread(target=getTrackImage,args=(track["artists"],track["title"],),kwargs={"fast":fast}) t.start() threads.append(t) for t in threads: t.join() return [getTrackImage(t["artists"],t["title"]) for t in trackobjectlist] def getArtistImages(artistlist,fast=False): threads = [] for artist in artistlist: t = Thread(target=getArtistImage,args=(artist,),kwargs={"fast":fast}) t.start() threads.append(t) for t in threads: t.join() # async calls only cached results, now we need to get them return [getArtistImage(a) for a in artistlist] # new way of serving images # instead always generate a link locally, but redirect that on the fly # this way the page can load faster and images will trickle in without having to resort to XHTTP requests def resolveImage(artist=None,track=None): if track is not None: return getTrackImage(track["artists"],track["title"]) elif artist is not None: return getArtistImage(artist) ##### ## PULSE MAINTENANCE ##### @yearly def update_medals(): from database import MEDALS, MEDALS_TRACKS, STAMPS, get_charts_artists, get_charts_tracks firstyear = datetime.datetime.utcfromtimestamp(STAMPS[0]).year currentyear = datetime.datetime.utcnow().year MEDALS.clear() for year in range(firstyear,currentyear): charts = get_charts_artists(within=[year]) for a in charts: artist = a["artist"] if a["rank"] == 1: MEDALS.setdefault(artist,{}).setdefault("gold",[]).append(year) elif a["rank"] == 2: MEDALS.setdefault(artist,{}).setdefault("silver",[]).append(year) elif a["rank"] == 3: MEDALS.setdefault(artist,{}).setdefault("bronze",[]).append(year) else: break MEDALS_TRACKS.clear() for year in range(firstyear,currentyear): charts = get_charts_tracks(within=[year]) for t in charts: track = (frozenset(t["track"]["artists"]),t["track"]["title"]) if t["rank"] == 1: MEDALS_TRACKS.setdefault(track,{}).setdefault("gold",[]).append(year) elif t["rank"] == 2: MEDALS_TRACKS.setdefault(track,{}).setdefault("silver",[]).append(year) elif t["rank"] == 3: MEDALS_TRACKS.setdefault(track,{}).setdefault("bronze",[]).append(year) else: break