modules/urls.py

   1 # Erebus IRC bot - Author: Conny Sjoblom
   2 # vim: fileencoding=utf-8
   3 # URL Checker
   4 # This file is released into the public domain; see http://unlicense.org/
   5
   6 # module info
   7 modinfo = {
   8         'author': 'Erebus Team',
   9         'license': 'public domain',
  10         'compatible': [0],
  11         'depends': [],
  12         'softdeps': [],
  13 }
  14
  15 # http://embed.ly/tools/generator
  16
  17 # preamble
  18 import modlib
  19 lib = modlib.modlib(__name__)
  20 modstart = lib.modstart
  21 modstop = lib.modstop
  22
  23 # module code
  24 import sys
  25 if sys.version_info.major < 3:
  26         stringbase = basestring
  27         import urllib2
  28         import urlparse
  29         import HTMLParser
  30         html = HTMLParser.HTMLParser()
  31         from BeautifulSoup import BeautifulSoup
  32 else:
  33         stringbase = str
  34         import urllib.request as urllib2
  35         import urllib.parse as urlparse
  36         import html
  37         from bs4 import BeautifulSoup
  38
  39 import re, json, datetime
  40
  41 hostmask_regex = re.compile(r'^(.*)!(.*)@(.*)$')
  42
  43 def parser_hostmask(hostmask):
  44         if isinstance(hostmask, dict):
  45                 return hostmask
  46
  47         nick = None
  48         user = None
  49         host = None
  50
  51         if hostmask is not None:
  52                 match = hostmask_regex.match(hostmask)
  53
  54                 if not match:
  55                         nick = hostmask
  56                 else:
  57                         nick = match.group(1)
  58                         user = match.group(2)
  59                         host = match.group(3)
  60
  61         return {
  62                 'nick': nick,
  63                 'user': user,
  64                 'host': host
  65         }
  66
  67 class SmartRedirectHandler(urllib2.HTTPRedirectHandler):
  68         def http_error_301(self, req, fp, code, msg, headers):
  69                 result = urllib2.HTTPRedirectHandler.http_error_301(
  70                                 self, req, fp, code, msg, headers)
  71                 result.status = code
  72                 return result
  73
  74         def http_error_302(self, req, fp, code, msg, headers):
  75                 result = urllib2.HTTPRedirectHandler.http_error_302(
  76                                 self, req, fp, code, msg, headers)
  77                 result.status = code
  78                 return result
  79
  80 def _get_blocked_chans():
  81         return lib.parent.cfg.get('urls', 'blocked', '').split(',')
  82
  83 def process_line(line):
  84         responses = []
  85         num_found = 0
  86         limit = lib.parent.cfg.getint('urls', 'limit', 2)
  87         for action, group in regexes:
  88                 for regex in group:
  89                         for match in regex.findall(line):
  90                                 if match:
  91                                         num_found += 1
  92                                         if num_found > limit:
  93                                                 return responses
  94                                         if isinstance(match, stringbase):
  95                                                 resp = action(match)
  96                                         else:
  97                                                 resp = action(*match)
  98                                         if resp is not None and resp != "":
  99                                                 responses.append(resp)
 100         return responses
 101
 102 @lib.hooknum("PRIVMSG")
 103 def privmsg_hook(bot, textline):
 104         user = parser_hostmask(textline[1:textline.find(' ')])
 105         chan = textline.split()[2]
 106
 107         if chan in _get_blocked_chans(): return
 108
 109         try:
 110                 line = textline.split(None, 3)[3][1:]
 111         except IndexError:
 112                 line = ''
 113
 114         responses = process_line(line)
 115         if len(responses) > 0:
 116                 if lib.parent.cfg.getboolean('urls', 'multiline'):
 117                         for r in responses:
 118                                 bot.msg(chan, r, True)
 119                 else:
 120                         bot.msg(chan, ' | '.join(responses), True)
 121
 122 def unescape(line):
 123         return re.sub('\s+', ' ', html.unescape(line))
 124
 125 def gotspotify(type, track):
 126         url = 'http://ws.spotify.com/lookup/1/?uri=spotify:%s:%s' % (type, track)
 127         xml = urllib2.urlopen(url).read()
 128         soup = BeautifulSoup(xml, convertEntities=BeautifulSoup.HTML_ENTITIES)
 129         lookup_type = soup.contents[2].name
 130
 131         if lookup_type == 'track':
 132                 name = soup.find('name').string
 133                 album_name = soup.find('album').find('name').string
 134                 artist_name = soup.find('artist').find('name').string
 135                 popularity = soup.find('popularity')
 136                 if popularity:
 137                         popularity = float(popularity.string)*100
 138                 length = float(soup.find('length').string)
 139                 minutes = int(length)/60
 140                 seconds = int(length)%60
 141
 142                 return unescape('Track: %s - %s / %s %s:%.2d %2d%%' % (artist_name, name, album_name, minutes, seconds, popularity))
 143
 144         elif lookup_type == 'album':
 145                 album_name = soup.find('album').find('name').string
 146                 artist_name = soup.find('artist').find('name').string
 147                 released = soup.find('released').string
 148                 return unescape('Album: %s - %s - %s' % (artist_name, album_name, released))
 149
 150         else:
 151                 return 'Unsupported type.'
 152
 153 def _yt_duration(s):
 154         mo = re.match(r'P(\d+D)?T(\d+H)?(\d+M)?(\d+S)?', s)
 155         pcs = [x for x in mo.groups() if x]
 156         return ''.join(pcs).lower()
 157 def _yt_date(s, f):
 158         mo = re.match(r'(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})\.(\d+)Z', s)
 159         return datetime.datetime(*(int(x) for x in mo.groups())).strftime(f)
 160 def _yt_round(n):
 161         n = float(n)
 162         if n >= 10**12:
 163                 return '%.1ft' % (n/10**12)
 164         elif n >= 10**9:
 165                 return '%.1fb' % (n/10**9)
 166         elif n >= 10**6:
 167                 return '%.1fm' % (n/10**6)
 168         elif n >= 10**3:
 169                 return '%.1fk' % (n/10**3)
 170         else:
 171                 return int(n)
 172
 173 def gotyoutube(url):
 174         url_data = urlparse.urlparse(url)
 175         query = urlparse.parse_qs(url_data.query)
 176         video = query["v"][0]
 177         api_url = 'https://www.googleapis.com/youtube/v3/videos?part=snippet,contentDetails,statistics&id=%s&key=%s' % (video, lib.parent.cfg.get('urls', 'api_key'))
 178         try:
 179                 respdata = urllib2.urlopen(api_url).read()
 180                 v = json.loads(respdata)
 181                 v = v['items'][0]
 182
 183                 return unescape(lib.parent.cfg.get('urls', 'yt_format', "\002%(author)s\002: \037%(title)s\037 [%(duration)s, uploaded %(uploaded)s, %(views)s v/%(likes)s l/%(dislikes)s d]") % {
 184                         'title': v['snippet']['title'],
 185                         'author': v['snippet']['channelTitle'],
 186                         'duration': _yt_duration(v['contentDetails']['duration']),
 187                         'uploaded': _yt_date(v['snippet']['publishedAt'], lib.parent.cfg.get('urls', 'yt_date_format', '%b %d %Y')),
 188                         'views': _yt_round(v['statistics']['viewCount']),
 189                         'likes': _yt_round(v['statistics']['likeCount']),
 190                         'dislikes': _yt_round(v['statistics']['dislikeCount']),
 191                 })
 192         except urllib2.HTTPError as e:
 193                 if e.getcode() == 403:
 194                         return 'API limit exceeded'
 195                 else:
 196                         return str(e)
 197         except IndexError:
 198                 return 'no results'
 199         except Exception as e:
 200                 return str(e)
 201
 202 def gottwitch(uri):
 203         url = 'https://api.twitch.tv/helix/streams?user_login=%s' % uri.split('/')[0]
 204         opener = urllib2.build_opener()
 205         opener.addheaders = [('Client-ID', lib.parent.cfg.get('urls', 'twitch_api_key'))]
 206         respdata = opener.open(url).read()
 207         twitch = json.loads(respdata)['data']
 208         try:
 209                 # TODO: add current game.
 210                 return unescape('\037%s\037 is %s (%s)' % (twitch[0]['user_name'], twitch[0]['type'], twitch[0]['title']))
 211         except:
 212                 return 'Channel offline.'
 213
 214 def _humanize_bytes(b):
 215         b = int(b)
 216         i = 0
 217         table = " kMGTPEZYRQ"
 218         while b > 1024:
 219                 i += 1
 220                 b /= 1024.0
 221         if i == 0:
 222                 return "%dB" % (b)
 223         else:
 224                 return "%.2f%siB" % (b, table[i])
 225
 226 def goturl(url):
 227         output = []
 228         for _, group in other_regexes:
 229                 for regex in group:
 230                         if regex.match(url):
 231                                 return None
 232         request = urllib2.Request(url, headers={'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36'})
 233         opener = urllib2.build_opener(SmartRedirectHandler())
 234
 235         # Send request and handle errors
 236         try:
 237                 response = opener.open(request, timeout=2)
 238         except urllib2.HTTPError as e:
 239                 return 'Request error: %s %s' % (e.code, e.reason)
 240         except urllib2.URLError as e:
 241                 return 'Request error: %s' % (e.reason)
 242         except TimeoutError as e:
 243                 return 'Request error: request timed out'
 244         except Exception as e:
 245                 return 'Unknown error: %s %r' % (type(e).__name__, e.args)
 246
 247         # Try to add type and length headers to reply
 248         c_type = response.getheader('Content-Type', '').split(';', 1)[0]
 249         c_len = response.getheader('Content-Length')
 250         if c_type != '':
 251                 output.append("[%s] " % (c_type))
 252         else:
 253                 output.append("[no type] ")
 254         if c_type != "text/html": # else length will be provided by HTML code below
 255                 if c_len is not None:
 256                         output.append("[%s] " % (_humanize_bytes(c_len)))
 257                 else:
 258                         output.append("[no length] ")
 259
 260         # Try to add title if HTML
 261         if c_type == 'text/html':
 262                 try:
 263                         responsebody = response.read(1024*1024)
 264                 except Exception as e:
 265                         output.append('Error reading response body: %s %r' % (type(e).__name__, e.args))
 266                 else:
 267                         if c_len is not None and len(responsebody) != int(c_len):
 268                                 output.append("[actual %s; Content-Length %s] " % (_humanize_bytes(len(responsebody)), _humanize_bytes(c_len)))
 269                         else:
 270                                 output.append("[%s] " % (_humanize_bytes(len(responsebody))))
 271                         try:
 272                                 soup = BeautifulSoup(responsebody)
 273                                 if soup.title:
 274                                         output.append('Title: ' + unescape('%s' % (soup.find('title').string.strip())))
 275                                 else:
 276                                         output.append('No title')
 277                         except Exception as e:
 278                                 output.append('Title error: %s %r ' % (type(e).__name__, e.args))
 279
 280         return ''.join(output)
 281
 282 url_regex = (
 283         re.compile(r'https?://(?:[^/\s.]+\.)+[^/\s.]+(?:/\S+)?'),
 284 )
 285 other_regexes = (
 286 )
 287 regexes = other_regexes + (
 288         (goturl, url_regex),
 289 )