Lyrics plugin

We can fetch and store lyrics for each song.

plugins/lyrics.py

@@ -0,0 +1,92 @@
+# Bryan Schumaker (11/27/2010)
+
+import ocarina
+from ocarina import footer
+import re
+
+libsaria = ocarina.libsaria
+from libsaria import web
+from libsaria import xm
+from libsaria import cache
+
+gtk = ocarina.gtk
+
+page   = gtk.ScrolledWindow()
+text   = gtk.TextView()
+buffer = text.get_buffer()
+
+page.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
+text.set_editable(False)
+page.add(text)
+page.show_all()
+
+url = "http://lyrics.wikia.com/api.php?"
+
+def decode_line(line):
+	string = ""
+	for c in line.split(";"):
+		if len(c) == 0:
+			continue
+		try:
+			val = int(c[2:])
+			string += chr(val)
+		except:
+			pass
+	return string
+
+def decode(file, code):
+	lines = []
+	for line in code:
+		lines.append(decode_line(line))
+	string = "\n".join(lines)
+	file.write(string)
+
+def parse_full(file, lyrics):
+	req = web.Url(lyrics)
+	res = None
+	for line in req.open():
+		if re.match("<div class=\'lyricbox\'>(.*?)", line):
+			res = line
+	split = res.split("</div>")
+	code  = split[len(split) - 1]
+	decode(file, code.split("<br />"))
+
+def parse(file, res):
+	doc      = xm.parse(res)
+	result   = xm.child(doc)
+	url_node = xm.get_elements(result, "url")[0]
+	lyrics   = xm.child(url_node).data
+	parse_full(file, lyrics)
+
+def fetch_lyrics(file, artist, title):
+	req = web.Url(url)
+	req["artist"] = artist
+	req["song"]   = title
+	req["fmt"]    = "xml"
+	try:
+		parse(file, req.open())
+	except:
+		return False
+	return True
+
+def set_lyrics(filepath):
+	id = libsaria.sources.file_to_id(filepath)
+	artist, title = libsaria.sources.library.get_attrs(id, "artist", "title")
+	cached = cache[artist]
+	file   = cached.get("%s.txt" % title, fetch_lyrics, artist, title)
+	fin    = open(file)
+	buffer.set_text(fin.read())
+
+def start():
+	footer.add_page("Lyrics", page)
+	libsaria.event.invite("POSTLOAD", set_lyrics, True)
+
+def stop():
+	footer.remove_page("Lyrics")
+
+def check_version():
+	if ocarina.__major__ != 4:
+		return False
+	if ocarina.__minor__ >= 2:
+		return True
+	return False