mirror of https://github.com/krateng/maloja.git
283 lines
7.8 KiB
Python
283 lines
7.8 KiB
Python
from ..globalconf import data_dir, malojaconfig
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from .. import thirdparty
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from doreah import caching
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from doreah.logging import log
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import itertools
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import os
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import urllib
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import random
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import base64
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from threading import Thread, Timer
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import re
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import datetime
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### Caches
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cacheage = malojaconfig["CACHE_EXPIRE_POSITIVE"] * 24 * 3600
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cacheage_neg = malojaconfig["CACHE_EXPIRE_NEGATIVE"] * 24 * 3600
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artist_cache = caching.Cache(name="imgcache_artists",maxage=cacheage,maxage_negative=cacheage_neg,persistent=True)
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track_cache = caching.Cache(name="imgcache_tracks",maxage=cacheage,maxage_negative=cacheage_neg,persistent=True)
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# removes emojis and weird shit from names
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def clean(name):
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return "".join(c for c in name if c.isalnum() or c in []).strip()
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def get_all_possible_filenames(artist=None,artists=None,title=None):
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# check if we're dealing with a track or artist, then clean up names
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# (only remove non-alphanumeric, allow korean and stuff)
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if title is not None and artists is not None:
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track = True
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title, artists = clean(title), [clean(a) for a in artists]
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elif artist is not None:
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track = False
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artist = clean(artist)
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else: return []
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superfolder = "tracks/" if track else "artists/"
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filenames = []
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if track:
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#unsafeartists = [artist.translate(None,"-_./\\") for artist in artists]
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safeartists = [re.sub("[^a-zA-Z0-9]","",artist) for artist in artists]
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#unsafetitle = title.translate(None,"-_./\\")
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safetitle = re.sub("[^a-zA-Z0-9]","",title)
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if len(artists) < 4:
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unsafeperms = itertools.permutations(artists)
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safeperms = itertools.permutations(safeartists)
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else:
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unsafeperms = [sorted(artists)]
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safeperms = [sorted(safeartists)]
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for unsafeartistlist in unsafeperms:
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filename = "-".join(unsafeartistlist) + "_" + title
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if filename != "":
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filenames.append(filename)
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filenames.append(filename.lower())
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for safeartistlist in safeperms:
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filename = "-".join(safeartistlist) + "_" + safetitle
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if filename != "":
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filenames.append(filename)
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filenames.append(filename.lower())
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filenames = list(set(filenames))
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if len(filenames) == 0: filenames.append(str(hash((frozenset(artists),title))))
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else:
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#unsafeartist = artist.translate(None,"-_./\\")
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safeartist = re.sub("[^a-zA-Z0-9]","",artist)
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filename = artist
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if filename != "":
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filenames.append(filename)
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filenames.append(filename.lower())
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filename = safeartist
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if filename != "":
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filenames.append(filename)
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filenames.append(filename.lower())
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filenames = list(set(filenames))
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if len(filenames) == 0: filenames.append(str(hash(artist)))
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return [superfolder + name for name in filenames]
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def local_files(artist=None,artists=None,title=None):
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filenames = get_all_possible_filenames(artist,artists,title)
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images = []
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for purename in filenames:
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# direct files
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for ext in ["png","jpg","jpeg","gif"]:
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#for num in [""] + [str(n) for n in range(0,10)]:
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if os.path.exists(data_dir['images'](purename + "." + ext)):
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images.append("/images/" + purename + "." + ext)
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# folder
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try:
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for f in os.listdir(data_dir['images'](purename)):
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if f.split(".")[-1] in ["png","jpg","jpeg","gif"]:
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images.append("/images/" + purename + "/" + f)
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except:
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pass
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return images
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# these caches are there so we don't check all files every time, but return the same one
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local_cache_age = malojaconfig["LOCAL_IMAGE_ROTATE"]
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local_artist_cache = caching.Cache(maxage=local_cache_age)
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local_track_cache = caching.Cache(maxage=local_cache_age)
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def getTrackImage(artists,title,fast=False):
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hashable_track = (frozenset(artists),title)
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# Prio 1: Local image
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if malojaconfig["USE_LOCAL_IMAGES"]:
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try:
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return local_track_cache.get(hashable_track)
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except:
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images = local_files(artists=artists,title=title)
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if len(images) != 0:
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res = random.choice(images)
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local_track_cache.add(hashable_track,res)
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return urllib.parse.quote(res)
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# Prio 2: Cached remote link
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try:
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result = track_cache.get(hashable_track)
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if result is not None: return result
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# if we have cached the nonexistence of that image, we immediately return
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# the redirect to the artist and let the resolver handle it
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# (even if we're not in a fast lookup right now)
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for a in artists:
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res = getArtistImage(artist=a,fast=True)
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if res != "": return res
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return ""
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except:
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pass
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# fast request will not go further than this, but now generate redirect link
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if fast:
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return ("/image?title=" + urllib.parse.quote(title) + "&" + "&".join(
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"artist=" + urllib.parse.quote(a) for a in artists))
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# Prio 3 (only non-fast lookup): actually call third parties
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result = thirdparty.get_image_track_all((artists,title))
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# cache results (even negative ones)
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track_cache.add(hashable_track,result)
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# return either result or redirect to artist
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if result is not None: return result
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for a in artists:
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res = getArtistImage(artist=a,fast=False)
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if res != "": return res
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return ""
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def getArtistImage(artist,fast=False):
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# Prio 1: Local image
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if malojaconfig["USE_LOCAL_IMAGES"]:
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try:
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return local_artist_cache.get(artist)
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except:
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images = local_files(artist=artist)
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if len(images) != 0:
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res = random.choice(images)
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local_artist_cache.add(artist,res)
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return urllib.parse.quote(res)
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# Prio 2: Cached remote link
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try:
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result = artist_cache.get(artist)
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if result is not None: return result
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else: return ""
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# none means non-existence is cached, return empty
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except:
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pass
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# no cache entry, go on
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# fast request will not go further than this, but now generate redirect link
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if fast: return "/image?artist=" + urllib.parse.quote(artist)
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# Prio 3 (only non-fast lookup): actually call third parties
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result = thirdparty.get_image_artist_all(artist)
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# cache results (even negative ones)
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artist_cache.add(artist,result) #cache_artist(artist,result)
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if result is not None: return result
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else: return ""
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def getTrackImages(trackobjectlist,fast=False):
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threads = []
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for track in trackobjectlist:
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t = Thread(target=getTrackImage,args=(track["artists"],track["title"],),kwargs={"fast":fast})
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t.start()
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threads.append(t)
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for t in threads:
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t.join()
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return [getTrackImage(t["artists"],t["title"]) for t in trackobjectlist]
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def getArtistImages(artistlist,fast=False):
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threads = []
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for artist in artistlist:
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t = Thread(target=getArtistImage,args=(artist,),kwargs={"fast":fast})
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t.start()
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threads.append(t)
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for t in threads:
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t.join()
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# async calls only cached results, now we need to get them
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return [getArtistImage(a) for a in artistlist]
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# new way of serving images
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# instead always generate a link locally, but redirect that on the fly
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# this way the page can load faster and images will trickle in without having to resort to XHTTP requests
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def resolveImage(artist=None,track=None):
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if track is not None:
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return getTrackImage(track["artists"],track["title"])
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elif artist is not None:
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return getArtistImage(artist)
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def set_image(b64,**keys):
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track = "title" in keys
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log("Trying to set image, b64 string: " + str(b64[:30] + "..."),module="debug")
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regex = r"data:image/(\w+);base64,(.+)"
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type,b64 = re.fullmatch(regex,b64).groups()
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b64 = base64.b64decode(b64)
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filename = "webupload" + str(int(datetime.datetime.now().timestamp())) + "." + type
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for folder in get_all_possible_filenames(**keys):
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if os.path.exists(data_dir['images'](folder)):
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with open(data_dir['images'](folder,filename),"wb") as f:
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f.write(b64)
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break
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else:
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folder = get_all_possible_filenames(**keys)[0]
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os.makedirs(data_dir['images'](folder))
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with open(data_dir['images'](folder,filename),"wb") as f:
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f.write(b64)
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log("Saved image as " + data_dir['images'](folder,filename),module="debug")
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# set as current picture in rotation
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if track: local_track_cache.add((frozenset(keys["artists"]),keys["title"]),os.path.join("/images",folder,filename))
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else: local_artist_cache.add(keys["artist"],os.path.join("/images",folder,filename))
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