02-dark-lyrics-com.py

#!/usr/bin/env python2
# -*- coding: utf-8 -*-

#  Load metal lyrics from darklyrics.com
#  Author: Eric Scheibler   (email[at]eric-scheibler[dot]de)
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

import requests, argparse, sys
from subprocess import Popen, PIPE, STDOUT

base_url = "http://www.darklyrics.com"

def download_page(url):
    r = requests.get(url)
    r.encoding = "utf-8"
    p = Popen(["pandoc", "-f", "html", "-t", "markdown"], stdout=PIPE, stdin=PIPE, stderr=STDOUT)
    return p.communicate(input=r.text.encode("utf-8"))[0]

parser = argparse.ArgumentParser(description="Lyrics parser for www.darklyrics.com")
parser.add_argument("artist", nargs="?", default="", help="Song artist")
parser.add_argument("title", nargs="?", default="", help="Song title")
args = parser.parse_args()
if args.artist == "":
    print "Song artist missing"
    sys.exit(1)
if args.title == "":
    print "Song title missing"
    sys.exit(1)

# load results page
result_page = download_page("%s/search?q=%s+%s" % (base_url, \
        args.artist.replace(" ","+"), args.title.replace(" ","+")))
song_url = ""
song_id_on_page = ""
song_part_found = False
for line in result_page.split("\n"):
    if line.startswith("### Songs:"):
        song_part_found = True
        continue
    if song_part_found and "](" in line:
        song_artist = line.strip()[1:].split("](")[0].strip().split(" - ")[0]
        if song_artist.lower() == args.artist.lower():
            song_url = line[:line.__len__()-1].split("](")[1]
            song_id_on_page = song_url.split("#")[-1]
            break
if song_url == "":
    sys.exit(2)

# parse songtext website
result_page = download_page("%s/%s" % (base_url, song_url))
song_name = ""
lyrics = ""
lyrics_start = False
empty_line_detected = False
for line in result_page.split("\n"):
    if song_name == "" and \
            "(#%s)" % song_id_on_page in line:
        song_name = line.split("](")[0].replace("[","").strip()
        lyrics = "%s\n" % song_name
        lyrics += "-" * song_name.__len__() + "\n"
        continue
    if "# %s" % song_name in line:
        lyrics_start = True
        continue
    if lyrics_start and ( \
            "### " in line or \
            "Thanks to " in line or \
            "Submits, comments" in line):
        break
    if lyrics_start:
        line = line.replace("\\", "").strip()
        if line == "":
            if empty_line_detected == False:
                lyrics += "\n"
                empty_line_detected = True
        else:
            lyrics += "%s\n" % line
            empty_line_detected = False

print lyrics[:lyrics.__len__()-1]
sys.exit(0)