lib.itmens/common/searcher.py
2022-07-23 14:34:27 -04:00

209 lines
8.8 KiB
Python

from urllib.parse import quote_plus
from enum import Enum
from common.models import SourceSiteEnum
from django.conf import settings
from common.scrapers.goodreads import GoodreadsScraper
from common.scrapers.spotify import get_spotify_token
import requests
from lxml import html
import logging
SEARCH_PAGE_SIZE = 5 # not all apis support page size
logger = logging.getLogger(__name__)
class Category(Enum):
Book = '书籍'
Movie = '电影'
Music = '音乐'
Game = '游戏'
TV = '剧集'
class SearchResultItem:
def __init__(self, category, source_site, source_url, title, subtitle, brief, cover_url):
self.category = category
self.source_site = source_site
self.source_url = source_url
self.title = title
self.subtitle = subtitle
self.brief = brief
self.cover_url = cover_url
@property
def verbose_category_name(self):
return self.category.value
@property
def link(self):
return f"/search?q={quote_plus(self.source_url)}"
@property
def scraped(self):
return False
class ProxiedRequest:
@classmethod
def get(cls, url):
u = f'http://api.scraperapi.com?api_key={settings.SCRAPERAPI_KEY}&url={quote_plus(url)}'
return requests.get(u, timeout=10)
class Goodreads:
@classmethod
def search(self, q, page=1):
results = []
try:
search_url = f'https://www.goodreads.com/search?page={page}&q={quote_plus(q)}'
r = requests.get(search_url)
if r.url.startswith('https://www.goodreads.com/book/show/'):
# Goodreads will 302 if only one result matches ISBN
data, img = GoodreadsScraper.scrape(r.url, r)
subtitle = f"{data['pub_year']} {', '.join(data['author'])} {', '.join(data['translator'] if data['translator'] else [])}"
results.append(SearchResultItem(Category.Book, SourceSiteEnum.GOODREADS,
data['source_url'], data['title'], subtitle,
data['brief'], data['cover_url']))
else:
h = html.fromstring(r.content.decode('utf-8'))
for c in h.xpath('//tr[@itemtype="http://schema.org/Book"]'):
el_cover = c.xpath('.//img[@class="bookCover"]/@src')
cover = el_cover[0] if el_cover else None
el_title = c.xpath('.//a[@class="bookTitle"]//text()')
title = ''.join(el_title).strip() if el_title else None
el_url = c.xpath('.//a[@class="bookTitle"]/@href')
url = 'https://www.goodreads.com' + \
el_url[0] if el_url else None
el_authors = c.xpath('.//a[@class="authorName"]//text()')
subtitle = ', '.join(el_authors) if el_authors else None
results.append(SearchResultItem(
Category.Book, SourceSiteEnum.GOODREADS, url, title, subtitle, '', cover))
except Exception as e:
logger.error(f"Goodreads search '{q}' error: {e}")
return results
class GoogleBooks:
@classmethod
def search(self, q, page=1):
results = []
try:
api_url = f'https://www.googleapis.com/books/v1/volumes?country=us&q={quote_plus(q)}&startIndex={SEARCH_PAGE_SIZE*(page-1)}&maxResults={SEARCH_PAGE_SIZE}&maxAllowedMaturityRating=MATURE'
j = requests.get(api_url).json()
if 'items' in j:
for b in j['items']:
if 'title' not in b['volumeInfo']:
continue
title = b['volumeInfo']['title']
subtitle = ''
if 'publishedDate' in b['volumeInfo']:
subtitle += b['volumeInfo']['publishedDate'] + ' '
if 'authors' in b['volumeInfo']:
subtitle += ', '.join(b['volumeInfo']['authors'])
if 'description' in b['volumeInfo']:
brief = b['volumeInfo']['description']
elif 'textSnippet' in b['volumeInfo']:
brief = b["volumeInfo"]["textSnippet"]["searchInfo"]
else:
brief = ''
category = Category.Book
# b['volumeInfo']['infoLink'].replace('http:', 'https:')
url = 'https://books.google.com/books?id=' + b['id']
cover = b['volumeInfo']['imageLinks']['thumbnail'] if 'imageLinks' in b['volumeInfo'] else None
results.append(SearchResultItem(
category, SourceSiteEnum.GOOGLEBOOKS, url, title, subtitle, brief, cover))
except Exception as e:
logger.error(f"GoogleBooks search '{q}' error: {e}")
return results
class TheMovieDatabase:
@classmethod
def search(self, q, page=1):
results = []
try:
api_url = f'https://api.themoviedb.org/3/search/multi?query={quote_plus(q)}&page={page}&api_key={settings.TMDB_API3_KEY}&language=zh-CN&include_adult=true'
j = requests.get(api_url).json()
for m in j['results']:
if m['media_type'] in ['tv', 'movie']:
url = f"https://www.themoviedb.org/{m['media_type']}/{m['id']}"
if m['media_type'] == 'tv':
cat = Category.TV
title = m['name']
subtitle = f"{m.get('first_air_date')} {m.get('original_name')}"
else:
cat = Category.Movie
title = m['title']
subtitle = f"{m.get('release_date')} {m.get('original_name')}"
cover = f"https://image.tmdb.org/t/p/w500/{m.get('poster_path')}"
results.append(SearchResultItem(
cat, SourceSiteEnum.TMDB, url, title, subtitle, m.get('overview'), cover))
except Exception as e:
logger.error(f"TMDb search '{q}' error: {e}")
return results
class Spotify:
@classmethod
def search(self, q, page=1):
results = []
try:
api_url = f"https://api.spotify.com/v1/search?q={q}&type=album&limit={SEARCH_PAGE_SIZE}&offset={page*SEARCH_PAGE_SIZE}"
headers = {
'Authorization': f"Bearer {get_spotify_token()}"
}
j = requests.get(api_url, headers=headers).json()
for a in j['albums']['items']:
title = a['name']
subtitle = a['release_date']
for artist in a['artists']:
subtitle += ' ' + artist['name']
url = a['external_urls']['spotify']
cover = a['images'][0]['url']
results.append(SearchResultItem(
Category.Music, SourceSiteEnum.SPOTIFY, url, title, subtitle, '', cover))
except Exception as e:
logger.error(f"Spotify search '{q}' error: {e}")
return results
class Bandcamp:
@classmethod
def search(self, q, page=1):
results = []
try:
search_url = f'https://bandcamp.com/search?from=results&item_type=a&page={page}&q={quote_plus(q)}'
r = requests.get(search_url)
h = html.fromstring(r.content.decode('utf-8'))
for c in h.xpath('//li[@class="searchresult data-search"]'):
el_cover = c.xpath('.//div[@class="art"]/img/@src')
cover = el_cover[0] if el_cover else None
el_title = c.xpath('.//div[@class="heading"]//text()')
title = ''.join(el_title).strip() if el_title else None
el_url = c.xpath('..//div[@class="itemurl"]/a/@href')
url = el_url[0] if el_url else None
el_authors = c.xpath('.//div[@class="subhead"]//text()')
subtitle = ', '.join(el_authors) if el_authors else None
results.append(SearchResultItem(Category.Music, SourceSiteEnum.BANDCAMP, url, title, subtitle, '', cover))
except Exception as e:
logger.error(f"Goodreads search '{q}' error: {e}")
return results
class ExternalSources:
@classmethod
def search(self, c, q, page=1):
if not q:
return []
results = []
if c == '' or c is None:
c = 'all'
if c == 'all' or c == 'movie':
results.extend(TheMovieDatabase.search(q, page))
if c == 'all' or c == 'book':
results.extend(GoogleBooks.search(q, page))
results.extend(Goodreads.search(q, page))
if c == 'all' or c == 'music':
results.extend(Spotify.search(q, page))
results.extend(Bandcamp.search(q, page))
return results