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+"""
+ Tokyo Toshokan (A BitTorrent Library for Japanese Media)
+
+ @website https://www.tokyotosho.info/
+ @provide-api no
+ @using-api no
+ @results HTML
+ @stable no (HTML can change)
+ @parse url, title, publishedDate, seed, leech,
+ filesize, magnetlink, content
+"""
+
+import re
+from lxml import html
+from searx.engines.xpath import extract_text
+from datetime import datetime
+from searx.engines.nyaa import int_or_zero, get_filesize_mul
+from searx.url_utils import urlencode
+
+# engine dependent config
+categories = ['files', 'videos', 'music']
+paging = True
+
+# search-url
+base_url = 'https://www.tokyotosho.info/'
+search_url = base_url + 'search.php?{query}'
+
+
+# do search-request
+def request(query, params):
+ query = urlencode({'page': params['pageno'], 'terms': query})
+ params['url'] = search_url.format(query=query)
+ return params
+
+
+# get response from search-request
+def response(resp):
+ results = []
+
+ dom = html.fromstring(resp.text)
+ rows = dom.xpath('//table[@class="listing"]//tr[contains(@class, "category_0")]')
+
+ # check if there are no results or page layout was changed so we cannot parse it
+ # currently there are two rows for each result, so total count must be even
+ if len(rows) == 0 or len(rows) % 2 != 0:
+ return []
+
+ # regular expression for parsing torrent size strings
+ size_re = re.compile(r'Size:\s*([\d.]+)(TB|GB|MB|B)', re.IGNORECASE)
+
+ # processing the results, two rows at a time
+ for i in range(0, len(rows), 2):
+ # parse the first row
+ name_row = rows[i]
+
+ links = name_row.xpath('./td[@class="desc-top"]/a')
+ params = {
+ 'template': 'torrent.html',
+ 'url': links[-1].attrib.get('href'),
+ 'title': extract_text(links[-1])
+ }
+ # I have not yet seen any torrents without magnet links, but
+ # it's better to be prepared to stumble upon one some day
+ if len(links) == 2:
+ magnet = links[0].attrib.get('href')
+ if magnet.startswith('magnet'):
+ # okay, we have a valid magnet link, let's add it to the result
+ params['magnetlink'] = magnet
+
+ # no more info in the first row, start parsing the second one
+ info_row = rows[i + 1]
+ desc = extract_text(info_row.xpath('./td[@class="desc-bot"]')[0])
+ for item in desc.split('|'):
+ item = item.strip()
+ if item.startswith('Size:'):
+ try:
+ # ('1.228', 'GB')
+ groups = size_re.match(item).groups()
+ multiplier = get_filesize_mul(groups[1])
+ params['filesize'] = int(multiplier * float(groups[0]))
+ except:
+ pass
+ elif item.startswith('Date:'):
+ try:
+ # Date: 2016-02-21 21:44 UTC
+ date = datetime.strptime(item, 'Date: %Y-%m-%d %H:%M UTC')
+ params['publishedDate'] = date
+ except:
+ pass
+ elif item.startswith('Comment:'):
+ params['content'] = item
+ stats = info_row.xpath('./td[@class="stats"]/span')
+ # has the layout not changed yet?
+ if len(stats) == 3:
+ params['seed'] = int_or_zero(extract_text(stats[0]))
+ params['leech'] = int_or_zero(extract_text(stats[1]))
+
+ results.append(params)
+
+ return results