Added certreq to make creating more complex CSRs easier.
[utils.git] / ann.py
1 import os, hashlib, urllib.request, time, re, weakref
2 from urllib.parse import urljoin, urlencode
3 import bs4
4 soup = lambda cont: bs4.BeautifulSoup(cont, "html.parser")
5
6 base = "http://www.animenewsnetwork.com/encyclopedia/"
7
8 class error(Exception):
9     pass
10
11 class incompatible(error):
12     def __init__(self):
13         super().__init__("ANN HTML has changed")
14
15 try:
16     cachedir = os.path.join(os.getenv("HOME"), ".ann", "cache")
17     if not os.path.isdir(cachedir):
18         os.makedirs(cachedir)
19 except:
20     cachedir = None
21
22 def cachename(url):
23     if not cachedir:
24         return None
25     d = hashlib.md5()
26     d.update(url.encode("ascii"))
27     return os.path.join(cachedir, d.hexdigest())
28
29 def get(url):
30     data = None
31     cachefile = cachename(url)
32     if cachefile and os.path.exists(cachefile):
33         if time.time() - os.stat(cachefile).st_mtime < 86400:
34             with open(cachefile, "rb") as fp:
35                 data = fp.read()
36     if data is None:
37         with urllib.request.urlopen(url) as fp:
38             data = fp.read()
39         if cachefile:
40             co = open(cachefile, "wb")
41             try:
42                 co.write(data)
43             finally:
44                 co.close()
45     return soup(data)
46
47 def s(s, rx, rep):
48     m = re.search(rx, s, re.I)
49     if m:
50         return s[:m.start()] + rep + s[m.end():]
51     else:
52         return s
53
54 def afind(soup, *args, **kwargs):
55     ret = soup.find(*args, **kwargs)
56     if ret is None:
57         raise incompatible()
58     return ret
59
60 def cstr(soup):
61     if isinstance(soup, bs4.Tag) or isinstance(soup, list):
62         ret = ""
63         for el in soup:
64             ret += cstr(el)
65         return ret
66     else:
67         return soup.string
68
69 class cproperty(object):
70     _default = object()
71
72     def __init__(self, bk):
73         self.bk = bk
74         self.cache = weakref.WeakKeyDictionary()
75
76     def __get__(self, ins, cls):
77         if ins is None: return self
78         ret = self.cache.get(ins, self._default)
79         if ret is self._default:
80             ret = self.bk(ins)
81             self.cache[ins] = ret
82         return ret
83
84     def __set__(self, ins, val):
85         self.cache[ins] = val
86
87     def __delete__(self, ins):
88         if ins in self.cache:
89             del self.cache[ins]
90
91 class anime(object):
92     def __init__(self, id):
93         self.id = id
94         self.url = urljoin(base, "anime.php?id=%i" % self.id)
95
96     @cproperty
97     def _page(self):
98         return get(self.url)
99
100     @cproperty
101     def _main(self):
102         return afind(self._page, "div", id="maincontent")
103
104     @cproperty
105     def _info(self):
106         ret = {}
107         for t in afind(self._main, "div", id="content-zone")("div", "encyc-info-type"):
108             if t.strong:
109                 ret[t.strong.text.lower().strip()[:-1]] = t.contents[t.contents.index(t.strong) + 1:]
110         return ret
111
112     @cproperty
113     def rawname(self):
114         afind(self._main, "h1", id="page_header").text
115     _nre = re.compile(r"^(.*\S)\s+\(([^\)]+)\)$")
116     @cproperty
117     def _sname(self):
118         m = self._nre.search(self.rawname)
119         if not m:
120             return (self.rawname, None)
121         return m.groups()[0:2]
122     @property
123     def name(self): return self._sname[0]
124     @property
125     def type(self): return self._sname[1]
126
127     @cproperty
128     def eps(self):
129         return int(cstr(self._info["number of episodes"]))
130
131     def __repr__(self):
132         return "<ann.anime: %r (%i)>" % (self.name, self.id)
133
134     def __str__(self):
135         return self.name
136
137 linkpat = re.compile("^/encyclopedia/anime\\.php\\?id=(\d+)$")
138 def getlist(name):
139     name = s(name, "^the\s+", "")
140     if len(name) < 1:
141         raise error("list() needs a prefix of at least one character")
142     fc = name[0]
143     if 'a' <= fc <= 'z' or 'A' <= fc <= 'Z':
144         fc = fc.upper()
145     else:
146         fc = '9'
147     d = get(urljoin(base, "anime.php?" + urlencode({"list": fc})))
148     ret = []
149     ldiv = afind(afind(d, "div", id="maincontent"), "div", "lst")
150     for link in ldiv("a", "HOVERLINE"):
151         mn = ""
152         for el in link.font:
153             if isinstance(el, str):
154                 mn += el.strip()
155         if mn.lower().startswith(name.lower()):
156             m = linkpat.match(link["href"])
157             if not m:
158                 raise incompatible()
159             found = anime(int(m.groups()[0]))
160             found.rawname = mn
161             ret.append(found)
162     return ret