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scrape.py
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scrape.py
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import time
import re
import json
import hashlib
import os
import unicodedata
import requests
from bs4 import BeautifulSoup as bs
baseurl = "http://limburgslied.nl"
def check_number_of_lyrics_online():
r = requests.get(baseurl+'/glossary')
soup = bs(r.text, 'html.parser')
numbers = soup.find_all("span", {"class": "views-summary views-summary-unformatted"})
x = []
for span in numbers:
link = baseurl + span.a['href']
cat = span.a.text.rstrip().lstrip()
count = span.a.next_sibling.lstrip().rstrip().replace("(","").replace(")","")
x.append({cat: [int(count), link]})
return x
def add_new_songs(database, cat_lyrics_online):
database_delta = [] # stores the categories with different amount of songs
temp_existing_cat_dict = {}
temp_online_cat_dict = {}
for existing_cat in database["count"]: #convert json to dict, so it is easier to handle
cat_name = list(existing_cat.keys())[0]
cat_number_local = existing_cat[cat_name][0] #the number of songs in a category
cat_link = existing_cat[cat_name][1]
temp_existing_cat_dict[cat_name] = (cat_number_local, cat_link)
for online_cat in cat_lyrics_online: #convert json to dict, so it is easier to handle
online_cat_name = list(online_cat.keys())[0]
cat_number_online = online_cat[online_cat_name][0] #the number of songs in a category
cat_link = online_cat[online_cat_name][1]
temp_online_cat_dict[online_cat_name] = (cat_number_online, cat_link)
for cat, value in temp_online_cat_dict.items(): #check for differences in the two dicts
if cat in temp_existing_cat_dict:
if temp_online_cat_dict[cat] > temp_existing_cat_dict[cat]:
print(f"Extra songs found in category: '{cat}'")
database_delta.append({cat: value})
else:
print(f"New category found: '{cat}'")
database_delta.append({cat: value})
if len(database_delta) == 0:
print("No new songs to download")
anws = input("Do you want to check the whole database? y/n: ")
if anws == 'y':
begin_download(cat_lyrics_online)
else:
return
else:
print("Begin downloading of lyrics not already in database")
database["count"] = cat_lyrics_online
file = open("database.json", 'w', encoding='utf8')
file.write(json.dumps(database, ensure_ascii=False, indent=4))
file.close()
begin_download(database_delta)
def replace_with_newlines(element):
text = ''
for elem in element.recursiveChildGenerator():
if isinstance(elem, str):
text += elem.strip()
elif elem.name == 'br':
text += '\n'
return text
def download_song_data(link, cat_name):
file = open("database.json", 'r', encoding='utf8')
database = json.load(file)
file.close()
try:
database["links"]
except:
database["links"] = {}
if cat_name in database["links"]:
for song in database["links"][cat_name]:
if song["link"].strip() == link:
print("link", link, "al gedownload!")
return
print("downloading", link)
else:
database["links"][cat_name] = []
r = requests.get(link)
time.sleep(3)
soup = bs(r.text, 'html.parser')
try:
title = soup.find("h1", {"class": "title"}).text.lstrip().rstrip()
except:
title = False
try:
tekst = soup.find("div", {"class": "field field-name-field-auteur field-type-text field-label-inline clearfix"}).find("div", {"class": "field-items"}).text.lstrip().rstrip()
except:
tekst = False
try:
muziek = soup.find("div", {"class": "field field-name-field-componist field-type-text field-label-inline clearfix"}).find("div", {"class": "field-items"}).text.lstrip().rstrip()
except:
muziek = False
try:
zang = soup.find("div", {"class": "field field-name-field-artiest field-type-text field-label-inline clearfix"}).find("div", {"class": "field-items"}).text.lstrip().rstrip()
except:
zang = False
try:
album = soup.find("div", {"class": "field field-name-field-album field-type-text field-label-inline clearfix"}).find("div", {"class": "field-items"}).text.lstrip().rstrip()
except:
album = False
try:
plaats = soup.find("div", {"class": "field field-name-field-plaats field-type-list-text field-label-inline clearfix"}).find("div", {"class": "field-items"}).text.lstrip().rstrip()
except:
plaats = False
try:
lyrics = soup.find("div", {"class": "field field-name-body field-type-text-with-summary field-label-hidden"})
lyrics = str(lyrics) #we laten de lyrics in raw html want er zit veel variatie in de html opmaak
except:
lyrics = False
x = {
"title": title,
"tekst": tekst,
"muziek": muziek,
"zang": zang,
"album": album,
"plaats": plaats,
"lyrics": lyrics,
"link": link
}
database["links"][cat_name].append(x) #TODO insert new lyric alphabetically
file = open("database.json", 'w', encoding='utf8')
file.write(json.dumps(database, ensure_ascii=False, indent=4))
file.close()
def get_last_page_int(r):
soup = bs(r.text, 'html.parser')
last_link = soup.find("li", {"class": "pager-last last"}).a['href']
num = re.search("page=([0-9]*)", last_link).group(1)
return int(num)
def get_data_one_page_from_cat_link(r, cat_name):
soup = bs(r.text, 'html.parser')
tbody = soup.find("tbody")
links_raw = tbody.find_all('a')
links = []
for link in links_raw:
link = baseurl + link['href']
download_song_data(link, cat_name)
def get_all_data_from_cat_link(link, cat_name):
r = requests.get(link)
get_data_one_page_from_cat_link(r, cat_name)
try:
last_page_int = get_last_page_int(r) #TODO checken of dit niet +1 moet zijn
except:
return
print("page 1 of", str(last_page_int+1)+":")
for n in range(1, last_page_int+1):
time.sleep(1)
print("page", str(n+1), "of", str(last_page_int+1)+":")
full_url = link+"?page="+str(n)
r = requests.get(full_url)
get_data_one_page_from_cat_link(r, cat_name)
def begin_download(categories):
for cat in categories:
cat_name = list(cat.keys())[0]
print(f"category '{cat_name}'")
link = cat[cat_name][1]
get_all_data_from_cat_link(link, cat_name)
def download_database():
cat_lyrics_online = check_number_of_lyrics_online()
try:
file = open("database.json", 'r', encoding='utf8')
database = json.load(file)
file.close()
except:
database = {}
if "count" in database: #database exists, search for extra songs
add_new_songs(database, cat_lyrics_online)
else: #database does not exist, download everything. But still check for paritial database (done in begin_download())
database["count"] = cat_lyrics_online
file = open("database.json", 'w', encoding='utf8')
file.write(json.dumps(database, ensure_ascii=False, indent=4))
file.close()
begin_download(database["count"])
def get_hash(text):
return hashlib.md5(text.encode('utf8')).hexdigest()
def clean_lyrics(lyrics): #TODO totaal niet optimized -> lookbehind/lookahead is je vriend
#begin. Eerst van raw html naar text:
lyrics = lyrics.replace('\n','').replace('\t', '').replace('<p>', '\n').replace('</p>', '\n').replace('<br/>', '\n') #newlines kunnen in de html kunnen zitten. Laatste is null space character
lyricssoup = bs(lyrics, 'html.parser') #weer terug naar bs object om rest van de tags te filteren
lyrics = lyricssoup.text.lstrip().rstrip() #newlines begin en eind van tekst weghalen
lyrics = unicodedata.normalize('NFC', lyrics) #non-standard chars to standard chars (UTF-8 null spaces etc)
unicode_replace_dict = { #replacement map
'”': '"',
'“': '"',
'’': "'",
'´': "'",
'‘': "'",
'`': "'",
'‚': ',',
'„': '"',
'_': ' ',
'—': '-',
'–': '-',
'•': '',
'©': '',
'¢': '\'',
'|': '',
'×': 'x',
'\u2028': '\n',
'\u00AD': '',
'~': ' ',
'{': '',
'\\': '',
'\u00A0': ' ',
'\u00B2': '2',
'\u2026': '...',
'œ': 'oe',
'+': '',
}
for key, value in unicode_replace_dict.items():
lyrics = lyrics.replace(key, value)
lyrics = re.sub('\.+$', '', lyrics) #geen punten eind vd zin
lyrics = re.sub('\ +(?=\.)', '.', lyrics) # geen spatie voor punt
lyrics = re.sub('\ +(?=,)','',lyrics) # geen spaties voor komma
lyrics = re.sub('\ (?=(\!|\?))', '', lyrics) # geen spatie voor vraag/uitroepteken
lyrics = lyrics.replace("\n!","!") #verwijder newline voor uitroepteken
lyrics = lyrics.replace("\n?","?") #verwijder newline voor vraagteken
#lyrics = re.sub('(?<=\!|\?)(?=[^\n\?\!\'])', '\n', lyrics) #altijd newline na vraag/uitroepteken, behalve na vraag/uitroepteken, newline of '
#lyrics = re.sub('\(\d*x\)', '', lyrics) #geen (2x), (3x) enz
lyrics = re.sub('refr(ei|e|i)ng?(\ ?:)?', 'Refrein', lyrics, flags=re.IGNORECASE) #vervang refrein/refreng/refring naar Refrein
lyrics = re.sub('(k|c)o(e|u)plet(\ ?:)?', 'Couplet', lyrics, flags=re.IGNORECASE) #vervang couplet/koeplet naar Couplet
lyrics = re.sub('(?<=(Refrein|Couplet)).*', '', lyrics) #verwijder alles na Refrein/Couplet
#lyrics = re.sub('(?<=(Refrein|Couplet))(?=\d)', ' ', lyrics) #altijd spatie tussen Refrein/Couplet en cijfer
#lyrics = re.sub('(?<=(Refrein|Couplet))(?!(:|\ \d))', ':', lyrics) #altijd ':' na Refrein of Couplet behalve bij ':' of een spatie + cijfer
#lyrics = re.sub('(?<=[^\n])Refrein:', '\nRefrein:', lyrics) #altijd newline voor Refrein:
#lyrics = re.sub('Refrein:(?=[^\n])', 'Refrein:\n', lyrics) #altijd newline na Refrein:
#lyrics = re.sub('(?!=[^\n])(?=Couplet)', '\n', lyrics) #altijd newline voor Couplet
#lyrics = re.sub('(?<=Couplet:)(?=[^\n])', '\n', lyrics) #altijd newline na Couplet met cijfer
#lyrics = re.sub('(?<=Couplet \d:)(?=[^\n])', '\n', lyrics) #altijd newline na Couplet met cijfer
lyrics = re.sub('\ {2,}', ' ', lyrics) #verwijder meer dan 1 spatie achterelkaar
lyrics = re.sub('^\'+(?!\w)','', lyrics) #random ' regels
lyrics = re.sub('(?<=\n)\ *|\ *(?=\n)','',lyrics) # geen spaties begin & eind van zin
lyrics = re.sub('(?<=\n)^\ *(?=\n)','',lyrics) #geen witregels
lyrics = re.sub('\n{3,}', '\n\n', lyrics)
return lyrics
def database_2_JSON():
'''Genereerd bestand met alleen maar lyrics'''
#https://github.com/kylemcdonald/gpt-2-poetry TODO
print("(re)generating JSON file..")
if os.path.exists("lyrics.json"): #remove existing lyrics.txt
os.remove("lyrics.json")
file = open("database.json", 'r', encoding='utf8')
database = json.load(file)
file.close()
cats = database["links"]
blacklistFile = open("blacklist.txt", 'r').read().splitlines()
with open("lyrics.json", 'w', encoding='utf8') as f:
song_list = []
for cat in cats:
for song in cats[cat]:
if song["link"] in blacklistFile:
continue #skip als link in blacklist
song_dict = {
"title": song["title"],
"tekst": song["tekst"],
"muziek": song["muziek"],
"zang": song["zang"],
"album": song["album"],
"plaats": song["plaats"],
"author": song["zang"],
"lyrics": clean_lyrics(song["lyrics"]).lower()
}
#lyrics = "".join([s for s in lyrics.splitlines(True) if s.strip("\r\n")])
# Append the dictionary to the song list
song_list.append(song_dict)
json.dump(song_list, f, ensure_ascii=False, indent=8)
print("JSON generation done.")
if __name__ == '__main__':
download_database()
anws = input("Do you want to regenerate the training file? y/n: ")
if anws == 'y':
database_2_JSON()
else:
exit()