from HTTPServer import TopLevel
from MirrorManager import MirrorManager
from Hash import HashObject
+from db import DB
+from util import findMyIPAddr
class AptDHT:
def __init__(self, dht):
log.msg('Initializing the main apt_dht application')
+ self.db = DB(config.get('DEFAULT', 'cache_dir') + '/.apt-dht.db')
self.dht = dht
self.dht.loadConfig(config, config.get('DEFAULT', 'DHT'))
self.dht.join().addCallbacks(self.joinComplete, self.joinError)
self.peers = PeerManager()
self.mirrors = MirrorManager(config.get('DEFAULT', 'cache_dir'), self)
self.my_addr = None
- self.isLocal = re.compile('^(192\.168\.[0-9]{1,3}\.[0-9]{1,3})|'+
- '(10\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})|'+
- '(172\.0?([1][6-9])|([2][0-9])|([3][0-1])\.[0-9]{1,3}\.[0-9]{1,3})|'+
- '(127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})$')
def getSite(self):
return self.http_site
-
- def joinComplete(self, addrs):
- log.msg("got addrs: %r" % (addrs,))
-
- try:
- ifconfig = os.popen("/sbin/ifconfig |/bin/grep inet|"+
- "/usr/bin/awk '{print $2}' | "+
- "sed -e s/.*://", "r").read().strip().split('\n')
- except:
- ifconfig = []
-
- # Get counts for all the non-local addresses returned
- addr_count = {}
- for addr in ifconfig:
- if not self.isLocal.match(addr):
- addr_count.setdefault(addr, 0)
- addr_count[addr] += 1
-
- local_addrs = addr_count.keys()
- if len(local_addrs) == 1:
- self.my_addr = local_addrs[0]
- log.msg('Found remote address from ifconfig: %r' % (self.my_addr,))
-
- # Get counts for all the non-local addresses returned
- addr_count = {}
- port_count = {}
- for addr in addrs:
- if not self.isLocal.match(addr[0]):
- addr_count.setdefault(addr[0], 0)
- addr_count[addr[0]] += 1
- port_count.setdefault(addr[1], 0)
- port_count[addr[1]] += 1
-
- # Find the most popular address
- popular_addr = []
- popular_count = 0
- for addr in addr_count:
- if addr_count[addr] > popular_count:
- popular_addr = [addr]
- popular_count = addr_count[addr]
- elif addr_count[addr] == popular_count:
- popular_addr.append(addr)
-
- # Find the most popular port
- popular_port = []
- popular_count = 0
- for port in port_count:
- if port_count[port] > popular_count:
- popular_port = [port]
- popular_count = port_count[port]
- elif port_count[port] == popular_count:
- popular_port.append(port)
-
- port = config.getint(config.get('DEFAULT', 'DHT'), 'PORT')
- if len(port_count.keys()) > 1:
- log.msg('Problem, multiple ports have been found: %r' % (port_count,))
- if port not in port_count.keys():
- log.msg('And none of the ports found match the intended one')
- elif len(port_count.keys()) == 1:
- port = port_count.keys()[0]
- else:
- log.msg('Port was not found')
-
- if len(popular_addr) == 1:
- log.msg('Found popular address: %r' % (popular_addr[0],))
- if self.my_addr and self.my_addr != popular_addr[0]:
- log.msg('But the popular address does not match: %s != %s' % (popular_addr[0], self.my_addr))
- self.my_addr = popular_addr[0]
- elif len(popular_addr) > 1:
- log.msg('Found multiple popular addresses: %r' % (popular_addr,))
- if self.my_addr and self.my_addr not in popular_addr:
- log.msg('And none of the addresses found match the ifconfig one')
- else:
- log.msg('No non-local addresses found: %r' % (popular_addr,))
-
+
+ def joinComplete(self, result):
+ self.my_addr = findMyIPAddr(result, config.getint(config.get('DEFAULT', 'DHT'), 'PORT'))
if not self.my_addr:
- log.err(RuntimeError("Remote IP Address could not be found for this machine"))
-
- def ipAddrFromChicken(self):
- import urllib
- ip_search = re.compile('\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}')
- try:
- f = urllib.urlopen("http://www.ipchicken.com")
- data = f.read()
- f.close()
- current_ip = ip_search.findall(data)
- return current_ip
- except Exception:
- return []
+ raise RuntimeError, "IP address for this machine could not be found"
def joinError(self, failure):
log.msg("joining DHT failed miserably")
def findHash_done(self, hash, path, d):
if hash.expected() is None:
log.msg('Hash for %s was not found' % path)
- self.download_file([path], hash, path, d)
+ self.lookupHash_done([], hash, path, d)
else:
log.msg('Found hash %s for %s' % (hash.hexexpected(), path))
# Lookup hash from DHT
def lookupHash_done(self, locations, hash, path, d):
if not locations:
log.msg('Peers for %s were not found' % path)
- self.download_file([path], hash, path, d)
+ getDefer = self.peers.get([path])
+ getDefer.addCallback(self.mirrors.save_file, hash, path)
+ getDefer.addErrback(self.mirrors.save_error, path)
+ getDefer.addCallbacks(d.callback, d.errback)
else:
log.msg('Found peers for %s: %r' % (path, locations))
# Download from the found peers
- self.download_file(locations, hash, path, d)
+ getDefer = self.peers.get(locations)
+ getDefer.addCallback(self.check_response, hash, path)
+ getDefer.addCallback(self.mirrors.save_file, hash, path)
+ getDefer.addErrback(self.mirrors.save_error, path)
+ getDefer.addCallbacks(d.callback, d.errback)
- def download_file(self, locations, hash, path, d):
- getDefer = self.peers.get(locations)
- getDefer.addCallback(self.mirrors.save_file, hash, path)
- getDefer.addErrback(self.mirrors.save_error, path)
- getDefer.addCallbacks(d.callback, d.errback)
+ def check_response(self, response, hash, path):
+ if response.code < 200 or response.code >= 300:
+ log.msg('Download from peers failed, going to direct download: %s' % path)
+ getDefer = self.peers.get([path])
+ return getDefer
+ return response
- def download_complete(self, hash, url, file_path):
+ def cached_file(self, hash, url, file_path):
assert file_path.startswith(config.get('DEFAULT', 'cache_dir'))
- directory = file_path[:len(config.get('DEFAULT', 'cache_dir'))]
- url_path = file_path[len(config.get('DEFAULT', 'cache_dir')):]
- if url_path[0] == '/':
- url_path = url_path[1:]
- top_directory = url_path.split('/',1)[0]
- url_path = url_path[len(top_directory):]
- http_dir = os.path.join(directory, top_directory)
- new_top = self.http_server.addDirectory(http_dir)
- url_path = '/' + new_top + url_path
- log.msg('now avaliable at %s: %s' % (url_path, url))
+ urlpath, newdir = self.db.storeFile(file_path, hash.digest(), config.get('DEFAULT', 'cache_dir'))
+ log.msg('now avaliable at %s: %s' % (urlpath, url))
if self.my_addr:
site = self.my_addr + ':' + str(config.getint('DEFAULT', 'PORT'))
- full_path = urlunparse(('http', site, url_path, None, None, None))
+ full_path = urlunparse(('http', site, urlpath, None, None, None))
key = hash.norm(bits = config.getint(config.get('DEFAULT', 'DHT'), 'HASH_LENGTH'))
storeDefer = self.dht.storeValue(key, full_path)
storeDefer.addCallback(self.store_done, full_path)