yoweb-scrape

   1 #!/usr/bin/python
   2
   3 #---------- setup ----------
   4
   5 import signal
   6 signal.signal(signal.SIGINT, signal.SIG_DFL)
   7
   8 import os
   9 import time
  10 import urllib
  11 import urllib2
  12 import errno
  13 import sys
  14 import re as regexp
  15 import random
  16 import curses
  17 from optparse import OptionParser
  18
  19 from BeautifulSoup import BeautifulSoup
  20
  21 opts = None
  22
  23 #---------- YPP parameters and arrays ----------
  24
  25 puzzles = ('Swordfighting/Bilging/Sailing/Rigging/Navigating'+
  26         '/Battle Navigation/Gunning/Carpentry/Rumble/Treasure Haul'+
  27         '/Drinking/Spades/Hearts/Treasure Drop/Poker/Distilling'+
  28         '/Alchemistry/Shipwrightery/Blacksmithing/Foraging').split('/')
  29
  30 standingvals = ('Able/Distinguished/Respected/Master'+
  31                 '/Renowned/Grand-Master/Legendary/Ultimate').split('/')
  32
  33 pirate_ref_re = regexp.compile('^/yoweb/pirate\\.wm')
  34
  35 max_pirate_namelen = 12
  36
  37
  38 #---------- general utilities ----------
  39
  40 def debug(m):
  41         if opts.debug > 0:
  42                 print m
  43
  44 def format_time_interval(ti):
  45         if ti < 120: return '%d:%02d' % (ti / 60, ti % 60)
  46         if ti < 7200: return '%2dm' % (ti / 60)
  47         if ti < 86400: return '%dh' % (ti / 3600)
  48         return '%dd' % (ti / 86400)
  49
  50 #---------- caching and rate-limiting data fetcher ----------
  51
  52 class Fetcher:
  53         def __init__(self, ocean, cachedir):
  54                 debug('Fetcher init %s' % cachedir)
  55                 self.ocean = ocean
  56                 self.cachedir = cachedir
  57                 try: os.mkdir(cachedir)
  58                 except (OSError,IOError), oe:
  59                         if oe.errno != errno.EEXIST: raise
  60                 self._cache_scan(time.time())
  61
  62         def default_ocean(self, ocean='ice'):
  63                 if self.ocean is None:
  64                         self.ocean = ocean
  65
  66         def _cache_scan(self, now):
  67                 # returns list of ages, unsorted
  68                 ages = []
  69                 debug('Fetcher   scan_cache')
  70                 for leaf in os.listdir(self.cachedir):
  71                         if not leaf.startswith('#'): continue
  72                         path = self.cachedir + '/' + leaf
  73                         try: s = os.stat(path)
  74                         except (OSError,IOError), oe:
  75                                 if oe.errno != errno.ENOENT: raise
  76                                 continue
  77                         age = now - s.st_mtime
  78                         if age > opts.expire_age:
  79                                 debug('Fetcher    expire %d %s' % (age, path))
  80                                 try: os.remove(path)
  81                                 except (OSError,IOError), oe:
  82                                         if oe.errno != errno.ENOENT: raise
  83                                 continue
  84                         ages.append(age)
  85                 return ages
  86
  87         def need_wait(self, now):
  88                 ages = self._cache_scan(now)
  89                 ages.sort()
  90                 debug('Fetcher   ages ' + `ages`)
  91                 min_age = 1
  92                 need_wait = 0
  93                 for age in ages:
  94                         if age < min_age and age < 300:
  95                                 debug('Fetcher   morewait min=%d age=%d' %
  96                                         (min_age, age))
  97                                 need_wait = max(need_wait, min_age - age)
  98                         min_age += 3
  99                         min_age *= 1.25
 100                 return need_wait
 101
 102         def _rate_limit_cache_clean(self, now):
 103                 need_wait = self.need_wait(now)
 104                 if need_wait > 0:
 105                         debug('Fetcher   wait %d' % need_wait)
 106                         time.sleep(need_wait)
 107
 108         def fetch(self, url, max_age):
 109                 debug('Fetcher fetch %s' % url)
 110                 cache_corename = urllib.quote_plus(url)
 111                 cache_item = "%s/#%s#" % (self.cachedir, cache_corename)
 112                 try: f = file(cache_item, 'r')
 113                 except (OSError,IOError), oe:
 114                         if oe.errno != errno.ENOENT: raise
 115                         f = None
 116                 now = time.time()
 117                 max_age = max(opts.min_max_age, min(max_age, opts.expire_age))
 118                 if f is not None:
 119                         s = os.fstat(f.fileno())
 120                         age = now - s.st_mtime
 121                         if age > max_age:
 122                                 debug('Fetcher  stale %d < %d'% (max_age, age))
 123                                 f = None
 124                 if f is not None:
 125                         data = f.read()
 126                         f.close()
 127                         debug('Fetcher  cached %d > %d' % (max_age, age))
 128                         return data
 129
 130                 debug('Fetcher  fetch')
 131                 self._rate_limit_cache_clean(now)
 132
 133                 stream = urllib2.urlopen(url)
 134                 data = stream.read()
 135                 cache_tmp = "%s/#%s~%d#" % (
 136                         self.cachedir, cache_corename, os.getpid())
 137                 f = file(cache_tmp, 'w')
 138                 f.write(data)
 139                 f.close()
 140                 os.rename(cache_tmp, cache_item)
 141                 debug('Fetcher  stored')
 142                 return data
 143
 144         def yoweb(self, kind, tail, max_age):
 145                 self.default_ocean()
 146                 url = 'http://%s.puzzlepirates.com/yoweb/%s%s' % (
 147                         self.ocean, kind, tail)
 148                 return self.fetch(url, max_age)
 149
 150 #---------- logging assistance for troubled screenscrapers ----------
 151
 152 class SoupLog:
 153         def __init__(self):
 154                 self.msgs = [ ]
 155         def msg(self, m):
 156                 self.msgs.append(m)
 157         def soupm(self, obj, m):
 158                 self.msg(m + '; in ' + `obj`)
 159         def needs_msgs(self, child_souplog):
 160                 self.msgs += child_souplog.msgs
 161                 child_souplog.msgs = [ ]
 162
 163 def soup_text(obj):
 164         str = ''.join(obj.findAll(text=True))
 165         return str.strip()
 166
 167 class SomethingSoupInfo(SoupLog):
 168         def __init__(self, kind, tail, max_age):
 169                 SoupLog.__init__(self)
 170                 html = fetcher.yoweb(kind, tail, max_age)
 171                 self._soup = BeautifulSoup(html,
 172                         convertEntities=BeautifulSoup.HTML_ENTITIES
 173                         )
 174
 175 #---------- scraper for pirate pages ----------
 176
 177 class PirateInfo(SomethingSoupInfo):
 178         # Public data members:
 179         #  pi.standings = { 'Treasure Haul': 'Able' ... }
 180         #  pi.name = name
 181         #  pi.crew = (id, name)
 182         #  pi.flag = (id, name)
 183         #  pi.msgs = [ 'message describing problem with scrape' ]
 184
 185         def __init__(self, pirate, max_age=300):
 186                 SomethingSoupInfo.__init__(self,
 187                         'pirate.wm?target=', pirate, max_age)
 188                 self.name = pirate
 189                 self._find_standings()
 190                 self.crew = self._find_crewflag('crew',
 191                         '^/yoweb/crew/info\\.wm')
 192                 self.flag = self._find_crewflag('flag',
 193                         '^/yoweb/flag/info\\.wm')
 194
 195         def _find_standings(self):
 196                 imgs = self._soup.findAll('img',
 197                         src=regexp.compile('/yoweb/images/stat.*'))
 198                 re = regexp.compile(
 199 u'\\s*\\S*/([-A-Za-z]+)\\s*$|\\s*\\S*/\\S*\\s*\\(ocean\\-wide(?:\\s|\\xa0)+([-A-Za-z]+)\\)\\s*$'
 200                         )
 201                 standings = { }
 202
 203                 for skill in puzzles:
 204                         standings[skill] = [ ]
 205
 206                 skl = SoupLog()
 207
 208                 for img in imgs:
 209                         try: puzzle = img['alt']
 210                         except KeyError: continue
 211
 212                         if not puzzle in puzzles:
 213                                 skl.soupm(img, 'unknown puzzle: "%s"' % puzzle)
 214                                 continue
 215                         key = img.findParent('td')
 216                         if key is None:
 217                                 skl.soupm(img, 'puzzle at root! "%s"' % puzzle)
 218                                 continue
 219                         valelem = key.findNextSibling('td')
 220                         if valelem is None:
 221                                 skl.soupm(key, 'puzzle missing sibling "%s"'
 222                                         % puzzle)
 223                                 continue
 224                         valstr = soup_text(valelem)
 225                         match = re.match(valstr)
 226                         if match is None:
 227                                 skl.soupm(key, ('puzzle "%s" unparseable'+
 228                                         ' standing "%s"') % (puzzle, valstr))
 229                                 continue
 230                         standing = match.group(match.lastindex)
 231                         standings[puzzle].append(standing)
 232
 233                 self.standings = { }
 234
 235                 for puzzle in puzzles:
 236                         sl = standings[puzzle]
 237                         if len(sl) > 1:
 238                                 skl.msg('puzzle "%s" multiple standings %s' %
 239                                                 (puzzle, `sl`))
 240                                 continue
 241                         if not sl:
 242                                 skl.msg('puzzle "%s" no standing found' % puzzle)
 243                                 continue
 244                         standing = sl[0]
 245                         for i in range(0, len(standingvals)-1):
 246                                 if standing == standingvals[i]:
 247                                         self.standings[puzzle] = i
 248                         if not puzzle in self.standings:
 249                                 skl.msg('puzzle "%s" unknown standing "%s"' %
 250                                         (puzzle, standing))
 251
 252                 all_standings_ok = True
 253                 for puzzle in puzzles:
 254                         if not puzzle in self.standings:
 255                                 self.needs_msgs(skl)
 256
 257         def _find_crewflag(self, cf, yoweb_re):
 258                 things = self._soup.findAll('a', href=regexp.compile(yoweb_re))
 259                 if len(things) != 1:
 260                         self.msg('zero or several %s id references found' % cf)
 261                         return None
 262                 thing = things[0]
 263                 id_re = '\\b%sid\\=(\\w+)$' % cf
 264                 id_haystack = thing['href']
 265                 match = regexp.compile(id_re).search(id_haystack)
 266                 if match is None:
 267                         self.soupm(thing, ('incomprehensible %s id ref'+
 268                                 ' (%s in %s)') % (cf, id_re, id_haystack))
 269                         return None
 270                 name = soup_text(thing)
 271                 return (match.group(1), name)
 272
 273         def __str__(self):
 274                 return `(self.crew, self.flag, self.standings, self.msgs)`
 275
 276 #---------- scraper for crew pages ----------
 277
 278 class CrewInfo(SomethingSoupInfo):
 279         # Public data members:
 280         #  ci.crew = [ ('Captain',        ['Pirate', ...]),
 281         #              ('Senior Officer', [...]),
 282         #               ... ]
 283         #  pi.msgs = [ 'message describing problem with scrape' ]
 284
 285         def __init__(self, crewid, max_age=300):
 286                 SomethingSoupInfo.__init__(self,
 287                         'crew/info.wm?crewid=', crewid, max_age)
 288                 self._find_crew()
 289
 290         def _find_crew(self):
 291                 self.crew = []
 292                 capts = self._soup.findAll('img',
 293                         src='/yoweb/images/crew-captain.png')
 294                 if len(capts) != 1:
 295                         self.msg('crew members: no. of captain images != 1')
 296                         return
 297                 tbl = capts[0]
 298                 while not tbl.find('a', href=pirate_ref_re):
 299                         tbl = tbl.findParent('table')
 300                         if not tbl:
 301                                 self.msg('crew members: cannot find table')
 302                                 return
 303                 current_rank_crew = None
 304                 crew_rank_re = regexp.compile('/yoweb/images/crew')
 305                 for row in tbl.contents:
 306                         # findAll(recurse=False)
 307                         if isinstance(row,basestring):
 308                                 continue
 309
 310                         is_rank = row.find('img', attrs={'src': crew_rank_re})
 311                         if is_rank:
 312                                 rank = soup_text(row)
 313                                 current_rank_crew = []
 314                                 self.crew.append((rank, current_rank_crew))
 315                                 continue
 316                         for cell in row.findAll('a', href=pirate_ref_re):
 317                                 if current_rank_crew is None:
 318                                         self.soupm(cell, 'crew members: crew'
 319                                                 ' before rank')
 320                                         continue
 321                                 current_rank_crew.append(soup_text(cell))
 322
 323         def __str__(self):
 324                 return `(self.crew, self.msgs)`
 325
 326 #---------- pretty-printer for tables of pirate puzzle standings ----------
 327
 328 class StandingsTable:
 329         def __init__(self, use_puzzles=None, col_width=6):
 330                 if use_puzzles is None:
 331                         if opts.ship_duty:
 332                                 use_puzzles=[
 333                                         'Navigating','Battle Navigation',
 334                                         'Gunning',
 335                                         ['Sailing','Rigging'],
 336                                         'Bilging',
 337                                         'Carpentry',
 338                                         'Treasure Haul'
 339                                 ]
 340                         else:
 341                                 use_puzzles=puzzles
 342                 self._puzzles = use_puzzles
 343                 self.s = ''
 344                 self._cw = col_width-1
 345
 346         def _pline(self, pirate, puzstrs, extra):
 347                 self.s += ' %-*s' % (max(max_pirate_namelen, 14), pirate)
 348                 for v in puzstrs:
 349                         self.s += ' %-*.*s' % (self._cw,self._cw, v)
 350                 if extra:
 351                         self.s += ' ' + extra
 352                 self.s += '\n'
 353
 354         def _puzstr(self, pi, puzzle):
 355                 if not isinstance(puzzle,list): puzzle = [puzzle]
 356                 try: standing = max([pi.standings[p] for p in puzzle])
 357                 except KeyError: return '?'
 358                 if not standing: return ''
 359                 s = ''
 360                 if self._cw > 4:
 361                         c1 = standingvals[standing][0]
 362                         if standing < 3: c1 = c1.lower() # 3 = Master
 363                         s += `standing`
 364                 if self._cw > 5:
 365                         s += ' '
 366                 s += '*' * (standing / 2)
 367                 s += '+' * (standing % 2)
 368                 return s
 369
 370         def headings(self):
 371                 def puzn_redact(name):
 372                         if isinstance(name,list):
 373                                 return '/'.join(
 374                                         ["%.*s" % (self._cw/2, puzn_redact(n))
 375                                          for n in name])
 376                         spc = name.find(' ')
 377                         if spc < 0: return name
 378                         return name[0:min(4,spc)] + name[spc+1:]
 379                 self._pline('', map(puzn_redact, self._puzzles), None)
 380         def literalline(self, line):
 381                 self.s += line + '\n'
 382         def pirate_dummy(self, name, standingstring, extra=None):
 383                 self._pline(name, standingstring * len(self._puzzles), extra)
 384         def pirate(self, pi, extra=None):
 385                 puzstrs = [self._puzstr(pi,puz) for puz in self._puzzles]
 386                 self._pline(pi.name, puzstrs, extra)
 387
 388         def results(self):
 389                 return self.s
 390
 391 #---------- chat log parser ----------
 392
 393 class PirateAboard:
 394         # This is essentially a transparent, dumb, data class.
 395         #  pa.v
 396         #  pa.name
 397         #  pa.last_time
 398         #  pa.last_event
 399         #  pa.gunner
 400         #  pa.last_chat_time
 401         #  pa.last_chat_chan
 402         #  pa.pi
 403
 404         def __init__(pa, pn, v, time, event):
 405                 pa.name = pn
 406                 pa.v = v
 407                 pa.last_time = time
 408                 pa.last_event = event
 409                 pa.last_chat_time = None
 410                 pa.last_chat_chan = None
 411                 pa.gunner = False
 412                 pa.pi = None
 413
 414         def pirate_info(pa):
 415                 if not pa.pi and not fetcher.need_wait(time.time()):
 416                         pa.pi = PirateInfo(pa.name, 3600)
 417                 return pa.pi
 418
 419 class ChatLogTracker:
 420         # This is quite complex so we make it opaque.  Use the
 421         # official invokers, accessors etc.
 422
 423         def __init__(self, myself_pi, logfn):
 424                 self._pl = {}   # self._pl['Pirate'] =
 425                 self._vl = {}   #   self._vl['Vessel']['Pirate'] = PirateAboard
 426                                 # self._vl['Vessel']['#lastaboard']
 427                 self._v = None          # self._v =
 428                 self._vessel = None     #       self._vl[self._vessel]
 429                 self._date = None
 430                 self._myself = myself_pi
 431                 self._need_redisplay = False
 432                 self._f = file(logfn)
 433                 self._lbuf = ''
 434                 self._progress = [0, os.fstat(self._f.fileno()).st_size]
 435
 436         def force_redisplay(self):
 437                 self._need_redisplay = True
 438
 439         def _onboard_event(self,timestamp,pirate,event):
 440                 try: pa = self._pl[pirate]
 441                 except KeyError: pa = None
 442                 if pa is not None and pa.v is self._v:
 443                         pa.last_time = timestamp
 444                         pa.last_event = event
 445                 else:
 446                         if pa is not None: del pa.v[pirate]
 447                         pa = PirateAboard(pirate, self._v, timestamp, event)
 448                         self._pl[pirate] = pa
 449                         self._v[pirate] = pa
 450                 self._v['#lastaboard'] = timestamp
 451                 self.force_redisplay()
 452                 return pa
 453
 454         def _trash_vessel(self, v):
 455                 for pn in v:
 456                         if pn.startswith('#'): continue
 457                         del self._pl[pn]
 458                 self.force_redisplay()
 459
 460         def expire_garbage(self, timestamp):
 461                 for (vn,v) in list(self._vl.iteritems()):
 462                         la = v['#lastaboard']
 463                         if timestamp - la > opts.ship_reboard_clearout:
 464                                 self._debug_line_disposition(timestamp,'',
 465                                         'stale reset '+vn)
 466                                 self._trash_vessel(v)
 467                                 del self._vl[vn]
 468
 469         def clear_vessel(self, timestamp):
 470                 if self._v is not None:
 471                         self._trash_vessel(self._v)
 472                 self._v = {'#lastaboard': timestamp}
 473                 self._vl[self._vessel] = self._v
 474
 475         def _debug_line_disposition(self,timestamp,l,m):
 476                 debug('CLT %13s %-30s %s' % (timestamp,m,l))
 477
 478         def chatline(self,l):
 479                 rm = lambda re: regexp.match(re,l)
 480                 d = lambda m: self._debug_line_disposition(timestamp,l,m)
 481                 timestamp = None
 482
 483                 m = rm('=+ (\\d+)/(\\d+)/(\\d+) =+$')
 484                 if m:
 485                         self._date = [int(x) for x in m.groups()]
 486                         self._previous_timestamp = None
 487                         return d('date '+`self._date`)
 488
 489                 if self._date is None:
 490                         return d('date unset')
 491
 492                 m = rm('\\[(\d\d):(\d\d):(\d\d)\\] ')
 493                 if not m:
 494                         return d('no timestamp')
 495
 496                 while True:
 497                         time_tuple = (self._date +
 498                                       [int(x) for x in m.groups()] +
 499                                       [-1,-1,-1])
 500                         timestamp = time.mktime(time_tuple)
 501                         if timestamp >= self._previous_timestamp: break
 502                         self._date[2] += 1
 503                         self._debug_line_disposition(timestamp,'',
 504                                 'new date '+`self._date`)
 505
 506                 self._previous_timestamp = timestamp
 507
 508                 l = l[l.find(' ')+1:]
 509
 510                 def ob_x(who,event):
 511                         return self._onboard_event(timestamp, who, event)
 512                 def ob1(did): ob_x(m.group(1), did); return d(did)
 513                 def oba(did): return ob1('%s %s' % (did, m.group(2)))
 514
 515                 def disembark(who, how):
 516                         ob_x(who, 'leaving '+how)
 517                         del self._v[who]
 518                         del self._pl[who]
 519
 520                 m = rm('Going aboard the (\\S.*\\S)\\.\\.\\.$')
 521                 if m:
 522                         pn = self._myself.name
 523                         self._vessel = m.group(1)
 524                         dm = 'boarding'
 525
 526                         try:             self._v = self._vl[self._vessel]
 527                         except KeyError: self._v = None; dm += ' new'
 528
 529                         if self._v is not None:  la = self._v['#lastaboard']
 530                         else:                    la = 0; dm += ' ?la'
 531
 532                         if timestamp - la > opts.ship_reboard_clearout:
 533                                 self.clear_vessel(timestamp)
 534                                 dm += ' stale'
 535
 536                         ob_x(pn, 'we boarded')
 537                         self.expire_garbage(timestamp)
 538                         return d(dm)
 539
 540                 if self._v is None:
 541                         return d('no vessel')
 542
 543                 m = rm('(\\w+) has come aboard\\.$')
 544                 if m: return ob1('boarded');
 545
 546                 m = rm('You have ordered (\\w+) to do some (\\S.*\\S)\\.$')
 547                 if m:
 548                         (who,what) = m.groups()
 549                         pa = ob_x(who,'ord '+what)
 550                         if what == 'Gunning':
 551                                 pa.gunner = True
 552                         return d('duty order')
 553
 554                 m = rm('(\\w+) abandoned a (\\S.*\\S) station\\.$')
 555                 if m: oba('stopped'); return d("end")
 556
 557                 def chat(what):
 558                         who = m.group(1)
 559                         try: pa = self._pl[who]
 560                         except KeyError: return d('chat mystery')
 561                         if pa.v is self._v:
 562                                 pa.last_chat_time = timestamp
 563                                 pa.last_chat_chan = what
 564                                 self.force_redisplay()
 565                                 return d('chat '+what)
 566
 567                 def chat_metacmd(what):
 568                         (cmdr, metacmd) = m.groups()
 569                         metacmd = regexp.sub('\\s+', ' ', metacmd).strip()
 570                         m2 = regexp.match(
 571                                 '/([ad]) (?:([A-Za-z ]+)\\s*:)?([A-Za-z ]+)$',
 572                                 metacmd)
 573                         if not m2: return chat(what)
 574
 575                         (cmd, vn, targets) = m2.groups()
 576
 577                         if cmdr == self._myself.name: how = 'manual: /%s' % cmd
 578                         else: how = '/%s %s' % (cmd,cmdr)
 579                         if cmd == 'a': each = ob_x
 580                         else: each = disembark
 581
 582                         if vn is not None:
 583                                 vn = vn.title()
 584                                 if not regexp.match(
 585                                                 '(?:.* )?' + vn + '$',
 586                                                 self._vessel):
 587                                         return chat('/%s %s:' % (cmd,vn))
 588
 589                         for target in targets.split(' '):
 590                                 if not target: continue
 591                                 each(target.title(), how)
 592                         return d('/%s' % cmd)
 593
 594                 m = rm('(\\w+) (?:issued an order|ordered everyone) "')
 595                 if m: return ob1('general order');
 596
 597                 m = rm('(\\w+) says, "')
 598                 if m: return chat('public')
 599
 600                 m = rm('(\\w+) tells ye, "')
 601                 if m: return chat('private')
 602
 603                 m = rm('Ye told (\\w+), "(.*)"$')
 604                 if m: return chat_metacmd('private')
 605
 606                 m = rm('(\\w+) flag officer chats, "')
 607                 if m: return chat('flag officer')
 608
 609                 m = rm('(\\w+) officer chats, "(.*)"$')
 610                 if m: return chat_metacmd('officer')
 611
 612                 m = rm('Game over\\.  Winners: ([A-Za-z, ]+)\\.$')
 613                 if m:
 614                         pl = m.group(1).split(', ')
 615                         if not self._myself.name in pl:
 616                                 return d('lost boarding battle')
 617                         for pn in pl:
 618                                 if ' ' in pn: continue
 619                                 ob_x(pn,'won boarding battle')
 620                         return d('won boarding battle')
 621
 622                 m = rm('(\\w+) is eliminated\\!')
 623                 if m: return ob1('eliminated in fray');
 624
 625                 m = rm('(\\w+) has left the vessel\.')
 626                 if m:
 627                         disembark(m.group(1), 'disembarked')
 628                         return d('disembarked')
 629
 630                 return d('not matched')
 631
 632         def _str_vessel(self, vn, v):
 633                 s = ' vessel %s\n' % vn
 634                 s += ' '*20 + "%-*s   %13s\n" % (
 635                                 max_pirate_namelen, '#lastaboard',
 636                                 v['#lastaboard'])
 637                 for pn in sorted(v.keys()):
 638                         if pn.startswith('#'): continue
 639                         pa = v[pn]
 640                         assert pa.v == v
 641                         assert self._pl[pn] == pa
 642                         s += ' '*20 + "%s %-*s %13s %-30s %13s %s\n" % (
 643                                 (' ','G')[pa.gunner],
 644                                 max_pirate_namelen, pn,
 645                                 pa.last_time, pa.last_event,
 646                                 pa.last_chat_time, pa.last_chat_chan)
 647                 return s
 648
 649         def __str__(self):
 650                 s = '''<ChatLogTracker
 651  myself %s
 652  vessel %s
 653 '''                     % (self._myself.name, self._vessel)
 654                 assert ((self._v is None and self._vessel is None) or
 655                         (self._v is self._vl[self._vessel]))
 656                 if self._vessel is not None:
 657                         s += self._str_vessel(self._vessel, self._v)
 658                 for vn in sorted(self._vl.keys()):
 659                         if vn == self._vessel: continue
 660                         s += self._str_vessel(vn, self._vl[vn])
 661                 for p in self._pl:
 662                         pa = self._pl[p]
 663                         assert pa.v[p] is pa
 664                         assert pa.v in self._vl.values()
 665                 s += '>\n'
 666                 return s
 667
 668         def catchup(self, progress=None):
 669                 while True:
 670                         more = self._f.readline()
 671                         if not more: break
 672
 673                         self._progress[0] += len(more)
 674                         if progress: progress.progress(*self._progress)
 675
 676                         self._lbuf += more
 677                         if self._lbuf.endswith('\n'):
 678                                 self.chatline(self._lbuf.rstrip())
 679                                 self._lbuf = ''
 680                 if progress: progress.caughtup()
 681
 682         def changed(self):
 683                 rv = self._need_redisplay
 684                 self._need_redisplay = False
 685                 return rv
 686         def myname(self):
 687                 # returns our pirate name
 688                 return self._myself.name
 689         def vessel(self):
 690                 # returns the vessel we're aboard or None
 691                 return self._vessel
 692         def aboard(self):
 693                 # returns a list of PirateAboard sorted by name
 694                 if self._v is None: return []
 695                 return [ self._v[pn]
 696                          for pn in sorted(self._v.keys())
 697                          if not pn.startswith('#') ]
 698
 699 #---------- implementations of actual operation modes ----------
 700
 701 def do_pirate(pirates, bu):
 702         print '{'
 703         for pirate in pirates:
 704                 info = PirateInfo(pirate)
 705                 print '%s: %s,' % (`pirate`, info)
 706         print '}'
 707
 708 def prep_crew_of(args, bu, max_age=300):
 709         if len(args) != 1: bu('crew-of takes one pirate name')
 710         pi = PirateInfo(args[0], max_age)
 711         if pi.crew is None: return None
 712         return CrewInfo(pi.crew[0], max_age)
 713
 714 def do_crew_of(args, bu):
 715         ci = prep_crew_of(args, bu)
 716         print ci
 717
 718 def do_standings_crew_of(args, bu):
 719         ci = prep_crew_of(args, bu, 60)
 720         tab = StandingsTable()
 721         tab.headings()
 722         for (rank, members) in ci.crew:
 723                 if not members: continue
 724                 tab.literalline('%s:' % rank)
 725                 for p in members:
 726                         pi = PirateInfo(p, random.randint(900,1800))
 727                         tab.pirate(pi)
 728         print tab.results()
 729
 730 class ProgressPrintPercentage:
 731         def __init__(self, f=sys.stdout):
 732                 self._f = f
 733         def progress_string(self,done,total):
 734                 return "scan chat logs %3d%%\r" % ((done*100) / total)
 735         def progress(self,*a):
 736                 self._f.write(self.progress_string(*a))
 737                 self._f.flush()
 738         def show_init(self, pirate, ocean):
 739                 print >>self._f, 'Starting up, %s on the %s ocean' % (
 740                         pirate, ocean)
 741         def caughtup(self):
 742                 self._f.write('                   \r')
 743                 self._f.flush()
 744
 745 #----- modes which use the chat log parser are quite complex -----
 746
 747 def prep_chat_log(args, bu,
 748                 progress=ProgressPrintPercentage(),
 749                 max_myself_age=3600):
 750         if len(args) != 1: bu('this action takes only chat log filename')
 751         logfn = args[0]
 752         logfn_re = '(?:.*/)?([A-Z][a-z]+)_([a-z]+)_'
 753         match = regexp.match(logfn_re, logfn)
 754         if not match: bu('chat log filename is not in expected format')
 755         (pirate, ocean) = match.groups()
 756         fetcher.default_ocean(ocean)
 757
 758         myself = PirateInfo(pirate,max_myself_age)
 759         progress.show_init(pirate, fetcher.ocean)
 760         track = ChatLogTracker(myself, logfn)
 761
 762         opts.debug -= 1
 763         track.catchup(progress)
 764         opts.debug += 1
 765
 766         track.force_redisplay()
 767
 768         return (myself, track)
 769
 770 def do_track_chat_log(args, bu):
 771         (myself, track) = prep_chat_log(args, bu)
 772         while True:
 773                 track.catchup()
 774                 if track.changed():
 775                         print track
 776                 time.sleep(1)
 777
 778 #----- ship management aid -----
 779
 780 class Display_dumb(ProgressPrintPercentage):
 781         def __init__(self):
 782                 ProgressPrintPercentage.__init__(self)
 783         def show(self, s):
 784                 print '\n\n', s;
 785         def realstart(self):
 786                 pass
 787
 788 class Display_overwrite(ProgressPrintPercentage):
 789         def __init__(self):
 790                 ProgressPrintPercentage.__init__(self)
 791
 792                 null = file('/dev/null','w')
 793                 curses.setupterm(fd=null.fileno())
 794
 795                 self._clear = curses.tigetstr('clear')
 796                 if not self._clear:
 797                         self._debug('missing clear!')
 798                         self.show = Display_dumb.show
 799                         return
 800
 801                 self._t = {'el':'', 'ed':''}
 802                 if not self._init_sophisticated():
 803                         for k in self._t.keys(): self._t[k] = ''
 804                         self._t['ho'] = self._clear
 805
 806         def _debug(self,m): debug('display overwrite: '+m)
 807
 808         def _init_sophisticated(self):
 809                 for k in self._t.keys():
 810                         s = curses.tigetstr(k)
 811                         self._t[k] = s
 812                 self._t['ho'] = curses.tigetstr('ho')
 813                 if not self._t['ho']:
 814                         cup = curses.tigetstr('cup')
 815                         self._t['ho'] = curses.tparm(cup,0,0)
 816                 missing = [k for k in self._t.keys() if not self._t[k]]
 817                 if missing:
 818                         self.debug('missing '+(' '.join(missing)))
 819                         return 0
 820                 return 1
 821
 822         def show(self, s):
 823                 w = sys.stdout.write
 824                 def wti(k): w(self._t[k])
 825
 826                 wti('ho')
 827                 nl = ''
 828                 for l in s.rstrip().split('\n'):
 829                         w(nl)
 830                         w(l)
 831                         wti('el')
 832                         nl = '\r\n'
 833                 wti('ed')
 834                 w(' ')
 835                 sys.stdout.flush()
 836
 837         def realstart(self):
 838                 sys.stdout.write(self._clear)
 839                 sys.stdout.flush()
 840
 841
 842 def do_ship_aid(args, bu):
 843         if opts.ship_duty is None: opts.ship_duty = True
 844
 845         displayer = globals()['Display_'+opts.display]()
 846         rotate_nya = '/-\\'
 847
 848         (myself, track) = prep_chat_log(args, bu, progress=displayer)
 849
 850         def timeevent(t,e):
 851                 if t is None: return ' ' * 22
 852                 return " %-4s %-16s" % (format_time_interval(now - t),e)
 853
 854         displayer.realstart()
 855
 856         while True:
 857                 track.catchup()
 858                 now = time.time()
 859
 860                 s = "%s" % track.myname()
 861
 862                 vn = track.vessel()
 863                 if vn is None: s += " not on a vessel?!"
 864                 else: s += " on board the %s" % vn
 865                 s += " at %s\n" % time.strftime("%Y-%m-%d %H:%M:%S")
 866
 867                 tbl = StandingsTable()
 868                 tbl.headings()
 869
 870                 for pa in track.aboard():
 871                         pi = pa.pirate_info()
 872
 873                         xs = ''
 874                         if pa.gunner: xs += 'G '
 875                         else: xs += '  '
 876                         xs += timeevent(pa.last_time, pa.last_event)
 877                         xs += timeevent(pa.last_chat_time, pa.last_chat_chan)
 878
 879                         if pi is None:
 880                                 tbl.pirate_dummy(pa.name, rotate_nya[0], xs)
 881                         else:
 882                                 tbl.pirate(pi, xs)
 883
 884                 s += tbl.results()
 885
 886                 displayer.show(s)
 887                 time.sleep(1)
 888                 rotate_nya = rotate_nya[1:3] + rotate_nya[0]
 889
 890 #---------- main program ----------
 891
 892 def main():
 893         global opts, fetcher
 894
 895         pa = OptionParser(
 896 '''usage: .../yoweb-scrape [OPTION...] ACTION [ARGS...]
 897 actions:
 898  yoweb-scrape [--ocean OCEAN ...] pirate PIRATE
 899  yoweb-scrape [--ocean OCEAN ...] crew-of PIRATE
 900  yoweb-scrape [--ocean OCEAN ...] standings-crew-of PIRATE
 901  yoweb-scrape [--ocean OCEAN ...] track-chat-log CHAT-LOG
 902  yoweb-scrape [options] ship-aid CHAT-LOG  (must be .../PIRATE_OCEAN_chat-log*)
 903
 904 display modes (for --display) apply to ship-aid:
 905  --display=dumb       just print new information, scrolling the screen
 906  --display=overwrite  use cursor motion, selective clear, etc. to redraw at top
 907 ''')
 908         ao = pa.add_option
 909         ao('-O','--ocean',dest='ocean', metavar='OCEAN', default=None,
 910                 help='select ocean OCEAN')
 911         ao('--cache-dir', dest='cache_dir', metavar='DIR',
 912                 default='~/.yoweb-scrape-cache',
 913                 help='cache yoweb pages in DIR')
 914         ao('-D','--debug', action='count', dest='debug', default=0,
 915                 help='enable debugging output')
 916         ao('--debug-fd', action='count', dest='debug_fd',
 917                 help='write any debugging output to specified fd')
 918         ao('-q','--quiet', action='store_true', dest='quiet',
 919                 help='suppress warning output')
 920         ao('--display', action='store', dest='display',
 921                 type='choice', choices=['dumb','overwrite'],
 922                 help='how to display ship aid')
 923
 924         ao('--ship-duty', action='store_true', dest='ship_duty',
 925                 help='show ship duty station puzzles')
 926         ao('--all-puzzles', action='store_false', dest='ship_duty',
 927                 help='show all puzzles, not just ship duty stations')
 928
 929         (opts,args) = pa.parse_args()
 930         random.seed()
 931
 932         if len(args) < 1:
 933                 pa.error('need a mode argument')
 934
 935         if opts.debug_fd is not None:
 936                 opts.debug_file = fdopen(opts.debug_fd, 'w')
 937
 938         mode = args[0]
 939         mode_fn_name = 'do_' + mode.replace('_','#').replace('-','_')
 940         try: mode_fn = globals()[mode_fn_name]
 941         except KeyError: pa.error('unknown mode "%s"' % mode)
 942
 943         # fixed parameters
 944         opts.min_max_age = 60
 945         opts.expire_age = 3600
 946         opts.ship_reboard_clearout = 3600
 947
 948         if opts.cache_dir.startswith('~/'):
 949                 opts.cache_dir = os.getenv('HOME') + opts.cache_dir[1:]
 950
 951         if opts.display is None:
 952                 if ((opts.debug > 0 and opts.debug_fd is None)
 953                     or not os.isatty(sys.stdout.fileno())):
 954                         opts.display = 'dumb'
 955                 else:
 956                         opts.display = 'overwrite'
 957
 958         fetcher = Fetcher(opts.ocean, opts.cache_dir)
 959
 960         mode_fn(args[1:], pa.error)
 961
 962 main()