310 lines
10 KiB
Python
310 lines
10 KiB
Python
from copy import deepcopy
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from math import ceil
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from twisted.internet.threads import deferToThread
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import main
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import modules.provision
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from utils.logging.debug import debug, trace
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from utils.logging.log import error, log, warn
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def getActiveRelays(net):
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activeRelays = [x for x in main.network[net].relays.keys() if main.network[net].relays[x]["enabled"]]
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return activeRelays
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def allRelaysActive(net):
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"""
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Check if all enabled relays are active and authenticated.
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"""
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activeRelays = getActiveRelays(net)
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debug(f"allRelaysActive() active relays for {net}: {activeRelays}")
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relayNum = len(activeRelays)
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existNum = 0
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for i in activeRelays:
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name = net + str(i)
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if name in main.IRCPool.keys():
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if main.IRCPool[name].authenticated:
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existNum += 1
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debug(f"allRelaysActive() finished, {existNum}/{relayNum} relays active for {net}")
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if existNum == relayNum:
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return True
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return False
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def getChanFree(net, new):
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"""
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Get a dictionary with the free channel spaces for
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each relay, and a channel limit.
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Example return:
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({1: 99}, 100)
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:param net: network
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:param new: list of newly provisioned relays to skip
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:return: ({relay: channel spaces}, channel limit)
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"""
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chanfree = {}
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chanlimits = set()
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for i in getActiveRelays(net):
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if i in new:
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continue
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name = net + str(i)
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if name not in main.IRCPool.keys():
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continue
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if not main.IRCPool[name].isconnected:
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continue
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chanfree[i] = main.IRCPool[name].chanlimit - len(main.IRCPool[name].channels)
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chanlimits.add(main.IRCPool[name].chanlimit)
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if not len(chanlimits) == 1:
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error("Network %s has servers with different CHANLIMIT values" % net)
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return False
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return (chanfree, chanlimits.pop())
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def getTotalChans(net):
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total = 0
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for i in getActiveRelays(net):
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name = net + str(i)
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if name in main.IRCPool.keys():
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total += len(main.IRCPool[name].channels)
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return total
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def emptyChanAllocate(net, flist, new):
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chanfree = getChanFree(net, new)
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if not chanfree:
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return
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for i in new:
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chanfree[0][i] = chanfree[1]
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allocated = {}
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toalloc = len(flist)
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# Used to correct allocations and provision additional relays
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# if the math since the last LIST is a bit wrong
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# toalloc:2148 free:{1: 250} chanlimit:250 correction:2147
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if toalloc > sum(chanfree[0].values()):
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sum_free = sum(chanfree[0].values()) # 250
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chans_not_covered = toalloc - sum_free # 2148 - 250 = 1898
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relays_needed = chans_not_covered / chanfree[1] # 1898 / 250 = 7.592
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correction = ceil(relays_needed)
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if main.config["ChanKeep"]["Provision"]:
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debug(
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(
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f"emptyChanAllocate() secondary allocation sum_free:{sum_free} "
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f"chans_not_covered:{chans_not_covered} relays_needed:{relays_needed} "
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f"correction:{correction}"
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)
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)
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debug(
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(
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f"emptyChanAllocate() not enough free channels: toalloc:{toalloc} "
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f"free:{chanfree[0]} chanlimit:{chanfree[1]} correction:{correction}"
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)
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)
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warn("Ran out of channel spaces, provisioning additional %i relays for %s" % (correction, net))
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modules.provision.provisionMultipleRelays(net, correction)
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return False
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else:
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# We don't have enough spaces and we can't add any.
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# Let's do the best we can in the circumstances.
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debug(f"emptyChanAllocate() cannot create additional relays for {net}")
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debug(f"emptyChanAllocate() {chans_not_covered} channels cannot be covered")
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flist = flist[:sum_free]
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debug(f"emptyChanAllocate() flist truncated to {sum_free}, length nis now {len(flist)}")
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trace(f"emptyChanAllocate() best effort allocation: {flist}")
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newlist = list(flist)
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for i in chanfree[0].keys():
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for x in range(chanfree[0][i]):
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if not len(newlist):
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break
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if i in allocated.keys():
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allocated[i].append(newlist.pop())
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else:
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allocated[i] = [newlist.pop()]
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return allocated
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def populateChans(net, clist, new):
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# divided = array_split(clist, relay)
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allocated = emptyChanAllocate(net, clist, new)
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if not allocated:
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return
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for i in allocated.keys():
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if net in main.TempChan.keys():
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main.TempChan[net][i] = allocated[i]
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else:
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main.TempChan[net] = {i: allocated[i]}
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def notifyJoin(net):
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for i in getActiveRelays(net):
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name = net + str(i)
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if name in main.IRCPool.keys():
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main.IRCPool[name].checkChannels()
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def minifyChans(net, listinfo):
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if not allRelaysActive(net):
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error("All relays for %s are not active, cannot minify list" % net)
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return False
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for i in getActiveRelays(net):
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name = net + str(i)
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for x in main.IRCPool[name].channels:
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for y in listinfo:
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if y[0] == x:
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listinfo.remove(y)
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if not listinfo:
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log("We're on all the channels we want to be on, dropping LIST")
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return False
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return listinfo
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def keepChannels(net, listinfo, mean, sigrelay, relay, chanlimit):
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listinfo = minifyChans(net, listinfo)
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if not listinfo:
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return
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if relay <= main.config["ChanKeep"]["SigSwitch"]: # we can cover all of the channels
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coverAll = True
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elif relay > main.config["ChanKeep"]["SigSwitch"]: # we cannot cover all of the channels
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coverAll = False
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if not sigrelay <= main.config["ChanKeep"]["MaxRelay"]:
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error("Network %s is too big to cover: %i relays required" % (net, sigrelay))
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return
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num_instances = len(getActiveRelays(net))
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debug(f"keepChannels() {net} instances:{num_instances} chanlimit:{chanlimit}")
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chan_slots_used = getTotalChans(net)
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debug(f"keepChannels() slots_used:{chan_slots_used}")
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max_chans = (chanlimit * num_instances) - chan_slots_used
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debug(f"keepChannels() max_chans:{max_chans}")
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if coverAll:
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needed = relay - len(getActiveRelays(net))
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debug(f"keepChannels() coverAll asking to provision {needed} relays for {net} relay:{relay}")
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newNums = modules.provision.provisionMultipleRelays(net, needed)
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flist = [i[0] for i in listinfo]
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chosen = sorted(flist, reverse=True, key=lambda x: x[1])[:max_chans]
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populateChans(net, chosen, newNums)
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else:
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needed = sigrelay - len(getActiveRelays(net))
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debug(f"keepChannels() NOT coverAll asking to provision {needed} relays for {net} sigrelay:{sigrelay}")
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newNums = modules.provision.provisionMultipleRelays(net, needed)
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siglist = [i[0] for i in listinfo if int(i[1]) > mean]
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chosen = sorted(siglist, reverse=True, key=lambda x: x[1])[:max_chans]
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populateChans(net, chosen, newNums)
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notifyJoin(net)
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def joinSingle(net, channel):
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eca = emptyChanAllocate(net, [channel], [])
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if not eca:
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return False
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if not len(eca.keys()) == 1:
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return False
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num = list(eca.keys())[0]
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name = f"{net}{num}"
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if name not in main.IRCPool:
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return False
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main.IRCPool[name].join(channel)
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return num
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def partSingle(net, channel):
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"""
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Iterate over all the relays of net and part channels matching channel.
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:param net:
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:param channel:
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:return:
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"""
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parted = []
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for i in getActiveRelays(net):
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name = f"{net}{i}"
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if name in main.IRCPool.keys():
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if channel in main.IRCPool[name].channels:
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main.IRCPool[name].part(channel)
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parted.append(str(i))
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return parted
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def nukeNetwork(net):
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# purgeRecords(net)
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# p = main.g.pipeline()
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main.g.delete("analytics.list." + net)
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# p.delete("list."+net)
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# p.execute()
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# def nukeNetwork(net):
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# deferToThread(_nukeNetwork, net)
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def _initialList(net, num, listinfo, chanlimit):
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listlength = len(listinfo)
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cumul = 0
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try:
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cumul += sum(int(i[1]) for i in listinfo)
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except TypeError:
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warn("Bad LIST data received from %s - %i" % (net, num))
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return
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mean = round(cumul / listlength, 2)
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siglength = 0
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insiglength = 0
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sigcumul = 0
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insigcumul = 0
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for i in listinfo:
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if int(i[1]) > mean:
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siglength += 1
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sigcumul += int(i[1])
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elif int(i[1]) < mean:
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insiglength += 1
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insigcumul += int(i[1])
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sigrelay = ceil(siglength / chanlimit)
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relay = ceil(listlength / chanlimit)
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# netbase = "list.%s" % net
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abase = "analytics.list.%s" % net
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p = main.g.pipeline()
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p.hset(abase, "mean", mean)
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p.hset(abase, "total", listlength)
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p.hset(abase, "sigtotal", siglength)
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p.hset(abase, "insigtotal", insiglength)
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p.hset(abase, "sigperc", round(siglength / listlength * 100, 2))
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p.hset(abase, "insigperc", round(insiglength / listlength * 100, 2))
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p.hset(abase, "cumul", cumul)
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p.hset(abase, "sigcumul", sigcumul)
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p.hset(abase, "insigcumul", insigcumul)
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p.hset(abase, "relay", relay)
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p.hset(abase, "sigrelay", sigrelay)
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p.hset(abase, "insigrelay", ceil(insiglength / chanlimit))
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debug(
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(
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f"_initialList() net:{net} num:{num} listlength:{listlength} "
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f"mean:{mean} siglength:{siglength} insiglength:{insiglength} "
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f"sigrelay:{sigrelay} relay:{relay} chanlimit:{chanlimit}"
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)
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)
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# Purge existing records before writing
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# purgeRecords(net)
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# for i in listinfo:
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# p.rpush(netbase+"."+i[0], i[1])
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# p.rpush(netbase+"."+i[0], i[2])
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# p.sadd(netbase, i[0])
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p.execute()
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debug("List parsing completed on %s" % net)
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keepChannels(net, listinfo, mean, sigrelay, relay, chanlimit)
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# return (listinfo, mean, sigrelay, relay)
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def initialList(net, num, listinfo, chanlimit):
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deferToThread(_initialList, net, num, deepcopy(listinfo), chanlimit)
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def chankeep_handler(net, num, listinfo, chanlimit):
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"""
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Handle a channel keep request.
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:param net:
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:param num:
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:param listinfo:
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:param chanlimit:
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:return:
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"""
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listinfo, mean, sigrelay, relay = _initialList(net, num, listinfo, chanlimit) |