def main(argv=sys.argv[1:]):
"""
This is the lantorrent daemon program. it mines the db for transfers
that it can group together and send. Only one should be running at
one time
"""
pylantorrent.log(logging.INFO, "enter %s" % (sys.argv[0]))
# use sqlaclh to make sure the db is there
x = LantorrentDB("sqlite:///%s" % pylantorrent.config.dbfile)
x.close()
con_str = pylantorrent.config.dbfile
#con = sqlite3.connect(con_str, isolation_level="EXCLUSIVE")
con = sqlite3.connect(con_str, detect_types=sqlite3.PARSE_DECLTYPES|sqlite3.PARSE_COLNAMES)
done = False
while not done:
try:
rows = getrows(con)
if rows and len(rows) > 0:
do_it_live(con, rows)
else:
time.sleep(5)
except Exception, ex:
pylantorrent.log(logging.ERROR, "top level error %s" % (str(ex)), traceback)
con = sqlite3.connect(con_str, detect_types=sqlite3.PARSE_DECLTYPES|sqlite3.PARSE_COLNAMES)
def is_done(con, rid):
error_cnt = 0
while True:
try:
pylantorrent.log(logging.INFO, "checking for done on %s" % (rid))
done = False
rc = 0
s = "select state,message,attempt_count from requests where rid = ?"
data = (rid,)
c = con.cursor()
c.execute(s, data)
rs = c.fetchone()
con.commit()
state = int(rs[0])
message = rs[1]
attempt_count = rs[2]
if state == 1:
done = True
elif attempt_count > 2:
done = True
rc = 1
if message == None:
message = "too many attempts %d" % (attempt_count)
con.commit()
return (done, rc, message)
except sqlite3.OperationalError, sqlex:
error_cnt = error_cnt + 1
if error_cnt >= pylantorrent.config.db_error_max:
raise sqlex
time.sleep(random.random() * 2.0)
def is_done(con, rid):
error_cnt = 0
while True:
try:
pylantorrent.log(logging.INFO, "checking for done on %s" % (rid))
done = False
rc = 0
s = "select state,message,attempt_count from requests where rid = ?"
data = (rid, )
c = con.cursor()
c.execute(s, data)
rs = c.fetchone()
con.commit()
state = int(rs[0])
message = rs[1]
attempt_count = rs[2]
if state == 1:
done = True
elif attempt_count > 2:
done = True
rc = 1
if message == None:
message = "too many attempts %d" % (attempt_count)
con.commit()
return (done, rc, message)
except sqlite3.OperationalError, sqlex:
error_cnt = error_cnt + 1
if error_cnt >= pylantorrent.config.db_error_max:
raise sqlex
time.sleep(random.random() * 2.0)
def _send_footer(self):
foot = {}
foot['md5sum'] = self.md5str
foot_str = json.dumps(foot)
pylantorrent.log(logging.DEBUG, "sending footer %s" % (foot_str))
for v_con in self.v_con_array:
v_con.send(foot_str)
def store_and_forward(self):
self._read_header()
header = self.json_header
requests_a = header['requests']
self._open_dest_files(requests_a)
destinations = header['destinations']
self._get_valid_vcons(destinations)
self._process_io()
# close all open files
self._close_files()
# read the footer from the sending machine
self._read_footer()
# send foot to all machines this is streaming to
self._send_footer()
# wait for eof and close
self._close_connections()
self._rename_files(requests_a)
pylantorrent.log(logging.DEBUG, "All data sent %s %d" % (self.md5str, len(requests_a)))
# if we got to here it was successfully written to a file
# and we can call it success. Print out a success message for
# everyfile written
vex = LTException(0, "Success", header['host'], int(header['port']), requests_a, md5sum=self.md5str)
s = vex.get_printable()
self.print_results(s)
self.clean_up()
def main(argv=sys.argv[1:]):
"""
This is the lantorrent daemon program. it mines the db for transfers
that it can group together and send. Only one should be running at
one time
"""
pylantorrent.log(logging.INFO, "enter %s" % (sys.argv[0]))
# use sqlaclh to make sure the db is there
x = LantorrentDB("sqlite:///%s" % pylantorrent.config.dbfile)
x.close()
con_str = pylantorrent.config.dbfile
#con = sqlite3.connect(con_str, isolation_level="EXCLUSIVE")
con = sqlite3.connect(con_str, detect_types=sqlite3.PARSE_DECLTYPES|sqlite3.PARSE_COLNAMES)
done = False
while not done:
try:
rows = getrows(con)
if rows and len(rows) > 0:
do_it_live(con, rows)
else:
time.sleep(5)
except Exception, ex:
pylantorrent.log(logging.ERROR, "top level error %s" % (str(ex)))
con = sqlite3.connect(con_str, detect_types=sqlite3.PARSE_DECLTYPES|sqlite3.PARSE_COLNAMES)
def _send_footer(self):
foot = {}
foot['md5sum'] = self.md5str
foot_str = json.dumps(foot)
pylantorrent.log(logging.DEBUG, "sending footer %s" % (foot_str))
for v_con in self.v_con_array:
v_con.send(foot_str)
def main(argv=sys.argv[1:]):
"""
This program allows a file to be requested from the lantorrent system. The
file will be sent out of band. When the file has been delived the
database entry for this request will be updated. This program will
block until that entry is update.
As options, the program takes the source file, the
target file location, the group_id and the group count.
The lantorrent config file must have the ip and port that the requester
is using for lantorrent delivery.
"""
pylantorrent.log(logging.INFO, "enter")
random.seed()
(o, args, p) = setup_options(argv)
# use sqlaclh to make sure the db is there
x = LantorrentDB("sqlite:///%s" % pylantorrent.config.dbfile)
x.close()
con_str = pylantorrent.config.dbfile
con = sqlite3.connect(con_str, isolation_level="EXCLUSIVE")
rc = 0
sz = -1
done = False
message = ""
if o.reattach is None:
(rid, sz) = request(args, con)
try:
(done, rc, message) = is_done(con, rid)
except:
done = False
rc = 0
message = "Check on status later, db not ready for polling"
else:
rid = o.reattach
if o.cancel:
delete_rid(con, rid)
return 0
(done, rc, message) = is_done(con, rid)
if not o.nonblock and not done:
(rc, message) = wait_until_sent(con, rid)
done = True
if done:
delete_rid(con, rid)
msg = "%d,%s,%s" % (rc, str(done), message)
print msg
# always return 0 if we echo the rc to stdout. this tells the
# user to check the output for the real rc
return 0
def main(argv=sys.argv[1:]):
"""
This program allows a file to be requested from the lantorrent system. The
file will be sent out of band. When the file has been delived the
database entry for this request will be updated. This program will
block until that entry is update.
As options, the program takes the source file, the
target file location, the group_id and the group count.
The lantorrent config file must have the ip and port that the requester
is using for lantorrent delivery.
"""
pylantorrent.log(logging.INFO, "enter")
random.seed()
(o, args, p) = setup_options(argv)
# use sqlaclh to make sure the db is there
x = LantorrentDB("sqlite:///%s" % pylantorrent.config.dbfile)
x.close()
con_str = pylantorrent.config.dbfile
con = sqlite3.connect(con_str, isolation_level="EXCLUSIVE")
rc = 0
sz = -1
done = False
message = ""
if o.reattach is None:
(rid, sz) = request(args, con)
try:
(done, rc, message) = is_done(con, rid)
except:
done = False
rc = 0
message = "Check on status later, db not ready for polling"
else:
rid = o.reattach
if o.cancel:
delete_rid(con, rid)
return 0
(done, rc, message) = is_done(con, rid)
if not o.nonblock and not done:
(rc, message) = wait_until_sent(con, rid)
done = True
if done:
delete_rid(con, rid)
msg = "%d,%s,%s" % (rc, str(done), message)
print msg
# always return 0 if we echo the rc to stdout. this tells the
# user to check the output for the real rc
return 0
def get_incomplete(self):
try:
self.process_incoming_data()
except Exception, ex:
pylantorrent.log(
logging.ERROR,
"An error occurred while trying to process the data received so far: %s"
% (str(ex)), traceback)
def _rename_files(self, requests_a):
for req in requests_a:
realname = req['filename']
rn = req['rename']
if rn:
tmpname = realname + self.suffix
pylantorrent.log(logging.DEBUG, "renaming %s -> %s" % (tmpname, realname))
os.rename(tmpname, realname)
self.created_files.remove(tmpname)
def _rename_files(self, requests_a):
for req in requests_a:
realname = req['filename']
rn = req['rename']
if rn:
tmpname = realname + self.suffix
pylantorrent.log(logging.DEBUG,
"renaming %s -> %s" % (tmpname, realname))
os.rename(tmpname, realname)
self.created_files.remove(tmpname)
def request(argv, con):
if len(argv) < 4:
raise Exception(
"You must provide 4 arguments: <src file> <dst file> <a uuid for this request> <the contanct string of the receiving nodes lt server>"
)
src_filename = argv[0]
dst_filename = argv[1]
# the user provides the rid. that way we know they have it to look
# things up later if needed
rid = argv[2]
# get the size of the file and verify that it exists
sz = os.path.getsize(src_filename)
hostport = argv[3]
ha = hostport.split(":")
host = ha[0]
if host == "":
hostport = os.environ['SSH_CLIENT']
ha2 = hostport.split(" ")
host = ha2[0]
if len(ha) > 1:
port = int(ha[1])
else:
port = 2893
now = datetime.datetime.now()
i = "insert into requests(src_filename, dst_filename, hostname, port, rid, entry_time, state, attempt_count) values (?, ?, ?, ?, ?, ?, ?, ?)"
data = (
src_filename,
dst_filename,
host,
port,
rid,
now,
0,
0,
)
error_ctr = 0
while True:
try:
c = con.cursor()
c.execute(i, data)
con.commit()
pylantorrent.log(logging.INFO, "new request %s %d" % (rid, sz))
return (rid, sz)
except Exception, ex:
pylantorrent.log(logging.ERROR,
"an error occured on request %s" % str(ex))
error_ctr = error_ctr + 1
if error_ctr >= pylantorrent.config.db_error_max:
raise ex
time.sleep(random.random() * 2.0)
def clean_up(self, force=False):
self._close_connections()
self._close_files()
pylantorrent.log(logging.DEBUG, "cleaning up")
for f in self.created_files:
try:
pylantorrent.log(logging.DEBUG, "deleting file %s" % (f))
if f != "/dev/null":
os.remove(f)
except:
pass
self.created_files = []
def clean_up(self, force=False):
self._close_connections()
self._close_files()
pylantorrent.log(logging.DEBUG, "cleaning up")
for f in self.created_files:
try:
pylantorrent.log(logging.DEBUG, "deleting file %s" % (f))
if f != "/dev/null":
os.remove(f)
except:
pass
self.created_files = []
def main(argv=sys.argv[1:]):
pylantorrent.log(logging.INFO, "server starting")
rc = 1
v = LTServer(sys.stdin, sys.stdout)
try:
v.store_and_forward()
rc = 0
except LTException, ve:
pylantorrent.log(logging.ERROR, "error %s" % (str(ve)), traceback)
s = ve.get_printable()
v.print_results(s)
v.clean_up()
def main(argv=sys.argv[1:]):
pylantorrent.log(logging.INFO, "server starting")
rc = 1
v = LTServer(sys.stdin, sys.stdout)
try:
v.store_and_forward()
rc = 0
except LTException, ve:
pylantorrent.log(logging.ERROR, "error %s" % (str(ve)), traceback)
s = ve.get_printable()
v.print_results(s)
v.clean_up()
def do_it_live(con, rows):
pylantorrent.log(logging.INFO, "lan torrent daemon setting up to send %d in a group" % (len(rows)))
c = con.cursor()
dests = []
last_host = None
last_port = None
json_dest = None
rids_all = []
for r in rows:
new_host = r[0]
new_port = int(r[1])
dst_filename = r[3]
src_filename = r[2]
rid = r[4]
rids_all.append(rid)
sz = os.path.getsize(src_filename)
# if it is the same host just tack on another dest file
if new_host == last_host and last_port == new_port:
reqs = json_dest['requests']
new_req = {"filename" : dst_filename, "id" : rid, 'rename' : True}
reqs.append(new_req)
json_dest['requests'] = reqs
else:
if json_dest != None:
dests.append(json_dest)
last_host = new_host
last_port = new_port
json_dest = {}
json_dest['host'] = new_host
json_dest['port'] = new_port
json_dest['requests'] = [{"filename" : dst_filename, "id" : rid, 'rename' : True}]
json_dest['block_size'] = 128*1024
json_dest['degree'] = 1
json_dest['length'] = sz
if json_dest != None:
dests.append(json_dest)
final = {}
# for the sake of code resuse this will just be piped into an
# lt daemon processor. /dev/null is used to supress a local write
final['requests'] = [{'filename' : "/dev/null", 'id' : str(uuid.uuid1()), 'rename' : False}]
final['host'] = "localhost"
final['port'] = 2893
final['block_size'] = 131072
final['degree'] = 1
final['destinations'] = dests
pylantorrent.log(logging.INFO, "request send %s" % (json.dumps(final, sort_keys=True, indent=4)))
pylantorrent.log(logging.INFO, "sending em!")
client = LTClient(src_filename, final)
v = LTServer(client, client)
try:
v.store_and_forward()
except Exception, ex:
pylantorrent.log(logging.ERROR, "an error occured on store and forward: %s" % (str(ex)), traceback)
def clean_up(self, force=False):
self._close_connections()
self._close_files()
pylantorrent.log(logging.DEBUG, "cleaning up")
for f in self.created_files:
try:
pylantorrent.log(logging.DEBUG, "deleting file %s" % (f))
# dont delete /dev/null (or any other dev really)
ndx = f.strip().find("/dev")
if ndx != 0:
os.remove(f)
except:
pass
self.created_files = []
def clean_up(self, force=False):
self._close_connections()
self._close_files()
pylantorrent.log(logging.DEBUG, "cleaning up")
for f in self.created_files:
try:
pylantorrent.log(logging.DEBUG, "deleting file %s" % (f))
# dont delete /dev/null (or any other dev really)
ndx = f.strip().find("/dev")
if ndx != 0:
os.remove(f)
except:
pass
self.created_files = []
def do_it_live(con, rows):
pylantorrent.log(logging.INFO, "lan torrent daemon setting up to send %d in a group" % (len(rows)))
c = con.cursor()
dests = []
last_host = None
last_port = None
json_dest = None
rids_all = []
for r in rows:
new_host = r[0]
new_port = int(r[1])
dst_filename = r[3]
src_filename = r[2]
rid = r[4]
rids_all.append(rid)
sz = os.path.getsize(src_filename)
# if it is the same host just tack on another dest file
if new_host == last_host and last_port == new_port:
reqs = json_dest['requests']
new_req = {"filename" : dst_filename, "id" : rid, 'rename' : True}
reqs.append(new_req)
json_dest['requests'] = reqs
else:
if json_dest != None:
dests.append(json_dest)
last_host = new_host
last_port = new_port
json_dest = {}
json_dest['host'] = new_host
json_dest['port'] = new_port
json_dest['requests'] = [{"filename" : dst_filename, "id" : rid, 'rename' : True}]
json_dest['block_size'] = 128*1024
json_dest['degree'] = 1
json_dest['length'] = sz
if json_dest != None:
dests.append(json_dest)
final = {}
# for the sake of code resuse this will just be piped into an
# lt daemon processor. /dev/null is used to supress a local write
final['requests'] = [{'filename' : "/dev/null", 'id' : str(uuid.uuid1()), 'rename' : False}]
final['host'] = "localhost"
final['port'] = 2893
final['block_size'] = 131072
final['degree'] = 1
final['destinations'] = dests
pylantorrent.log(logging.INFO, "request send %s" % (json.dumps(final, sort_keys=True, indent=4)))
pylantorrent.log(logging.INFO, "sending em!")
client = LTClient(src_filename, final)
v = LTServer(client, client)
try:
v.store_and_forward()
except Exception, ex:
pylantorrent.log(logging.ERROR, "an error occured on store and forward: %s" % (str(ex)))
def _open_dest_files(self, requests_a):
files_a = []
for req in requests_a:
filename = req['filename']
try:
rn = req['rename']
if rn:
filename = filename + self.suffix
f = open(filename, "w")
files_a.append(f)
self.created_files.append(filename)
except Exception, ex:
pylantorrent.log(logging.ERROR, "Failed to open %s" % (filename), traceback)
raise LTException(503, str(ex), self.json_header['host'], int(self.json_header['port']), reqs=requests_a)
def main(argv=sys.argv[1:]):
"""
This program allows a file to be requested from the lantorrent system. The
file will be sent out of band. When the file has been delived the
database entry for this request will be updated. This program will
block until that entry is update.
As options, the program takes the source file, the
target file location, the group_id and the group count.
The lantorrent config file must have the ip and port that the requester
is using for lantorrent delivery.
"""
pylantorrent.log(logging.INFO, "enter")
random.seed()
(o, args, p) = setup_options(argv)
con_str = pylantorrent.config.dbfile
con = sqlite3.connect(con_str, isolation_level="EXCLUSIVE")
rc = 0
sz = -1
done = False
message = ""
if o.reattach == None:
(rid, sz) = request(args, con)
try:
(done, rc, message) = is_done(con, rid)
except:
done = False
rc = 0
message = "Check on status later, db not ready for polling"
else:
rid = o.reattach
(done, rc, message) = is_done(con, rid)
if not o.nonblock and not done:
(rc, message) = wait_until_sent(con, rid)
done = True
if done:
delete_rid(con, rid)
msg = "%d,%s,%s" % (rc, str(done), message)
pynimbusauthz.print_msg(o, 0, msg)
return rc
def main(argv=sys.argv[1:]):
"""
This program allows a file to be requested from the lantorrent system. The
file will be sent out of band. When the file has been delived the
database entry for this request will be updated. This program will
block until that entry is update.
As options, the program takes the source file, the
target file location, the group_id and the group count.
The lantorrent config file must have the ip and port that the requester
is using for lantorrent delivery.
"""
pylantorrent.log(logging.INFO, "enter")
random.seed()
(o, args, p) = setup_options(argv)
con_str = pylantorrent.config.dbfile
con = sqlite3.connect(con_str, isolation_level="EXCLUSIVE")
rc = 0
sz = -1
done = False
message = ""
if o.reattach == None:
(rid, sz) = request(args, con)
try:
(done, rc, message) = is_done(con, rid)
except:
done = False
rc = 0
message = "Check on status later, db not ready for polling"
else:
rid = o.reattach
(done, rc, message) = is_done(con, rid)
if not o.nonblock and not done:
(rc, message) = wait_until_sent(con, rid)
done = True
if done:
delete_rid(con, rid)
msg = "%d,%s,%s" % (rc, str(done), message)
pynimbusauthz.print_msg(o, 0, msg)
return rc
def _process_io(self):
md5er = hashlib.md5()
read_count = 0
bs = self.block_size
while read_count < self.data_length:
if bs + read_count > self.data_length:
bs = self.data_length - read_count
data = self.source_conn.read_data(bs)
if data == None:
raise Exception("Data is None prior to receiving full file %d %d" % (read_count, self.data_length))
md5er.update(data)
for v_con in self.v_con_array:
v_con.send(data)
for f in self.files_a:
f.write(data)
read_count = read_count + len(data)
self.md5str = str(md5er.hexdigest()).strip()
pylantorrent.log(logging.DEBUG, "We have received sent %d bytes. The md5sum is %s" % (read_count, self.md5str))
def _open_dest_files(self, requests_a):
files_a = []
for req in requests_a:
filename = req['filename']
try:
rn = req['rename']
if rn:
filename = filename + self.suffix
f = open(filename, "w")
files_a.append(f)
self.created_files.append(filename)
except Exception, ex:
pylantorrent.log(logging.ERROR,
"Failed to open %s" % (filename), traceback)
raise LTException(503,
str(ex),
self.json_header['host'],
int(self.json_header['port']),
reqs=requests_a)
def request(argv, con):
if len(argv) < 4:
raise Exception("You must provide 4 arguments: <src file> <dst file> <a uuid for this request> <the contanct string of the receiving nodes lt server>")
src_filename = argv[0]
dst_filename = argv[1]
# the user provides the rid. that way we know they have it to look
# things up later if needed
rid = argv[2]
# get the size of the file and verify that it exists
sz = os.path.getsize(src_filename)
hostport = argv[3]
ha = hostport.split(":")
host = ha[0]
if host == "":
hostport = os.environ['SSH_CLIENT']
ha2 = hostport.split(" ")
host = ha2[0]
if len(ha) > 1:
port = int(ha[1])
else:
port = 2893
now = datetime.datetime.now()
i = "insert into requests(src_filename, dst_filename, hostname, port, rid, entry_time, state, attempt_count) values (?, ?, ?, ?, ?, ?, ?, ?)"
data = (src_filename, dst_filename, host, port, rid, now, 0, 0, )
error_ctr = 0
while True:
try:
c = con.cursor()
c.execute(i, data)
con.commit()
pylantorrent.log(logging.INFO, "new request %s %d" % (rid, sz))
return (rid, sz)
except Exception, ex:
pylantorrent.log(logging.ERROR, "an error occured on request %s" % str(ex))
error_ctr = error_ctr + 1
if error_ctr >= pylantorrent.config.db_error_max:
raise ex
time.sleep(random.random() * 2.0)
def _process_io(self):
md5er = hashlib.md5()
read_count = 0
bs = self.block_size
while read_count < self.data_length:
if bs + read_count > self.data_length:
bs = self.data_length - read_count
data = self.source_conn.read_data(bs)
if data == None:
raise Exception(
"Data is None prior to receiving full file %d %d" %
(read_count, self.data_length))
md5er.update(data)
for v_con in self.v_con_array:
v_con.send(data)
for f in self.files_a:
f.write(data)
read_count = read_count + len(data)
self.md5str = str(md5er.hexdigest()).strip()
pylantorrent.log(
logging.DEBUG, "We have received sent %d bytes. The md5sum is %s" %
(read_count, self.md5str))
def getrows(con):
c = con.cursor()
tm = datetime.datetime.now() - datetime.timedelta(
0, pylantorrent.config.insert_delay)
s = "select distinct src_filename from requests where state = 0 and attempt_count < 3 and entry_time < ? order by entry_time limit 1"
data = (tm, )
c.execute(s, data)
r = c.fetchone()
if r == None or len(r) < 1:
return None
src_file = r[0]
# do a commit here. THe assumption is that jsut one daemon is pulling
# from the db. better to grab any that came in since the initial
# select
con.commit()
pylantorrent.log(logging.INFO, "selected rows with fname %s" % (src_file))
# need to find a way to determine that nothing new has been added for this
# file recently
#s = 'select max(entry_time) as "e [timestamp]" from requests where src_filename = ? and state = 0 and attempt_count < 3'
#data = (src_file, )
#done = False
#while not done:
# c.execute(s, data)
# row = c.fetchone()
# con.commit()
# td = datetime.datetime.now() - datetime.timedelta(0, 2)
# if row[0] < td:
# done = True
# else:
# time.sleep(0.1)
s = "select hostname,port,src_filename,dst_filename,rid from requests where src_filename = ? and state = 0 and attempt_count < 3 order by hostname,port"
data = (src_file, )
c.execute(s, data)
rows = c.fetchall()
con.commit()
return rows
def getrows(con):
c = con.cursor()
tm = datetime.datetime.now() - datetime.timedelta(0, pylantorrent.config.insert_delay)
s = "select distinct src_filename from requests where state = 0 and attempt_count < 3 and entry_time < ? order by entry_time limit 1"
data = (tm, )
c.execute(s, data)
r = c.fetchone()
if r == None or len(r) < 1:
return None
src_file = r[0]
# do a commit here. THe assumption is that jsut one daemon is pulling
# from the db. better to grab any that came in since the initial
# select
con.commit()
pylantorrent.log(logging.INFO, "selected rows with fname %s" % (src_file))
# need to find a way to determine that nothing new has been added for this
# file recently
#s = 'select max(entry_time) as "e [timestamp]" from requests where src_filename = ? and state = 0 and attempt_count < 3'
#data = (src_file, )
#done = False
#while not done:
# c.execute(s, data)
# row = c.fetchone()
# con.commit()
# td = datetime.datetime.now() - datetime.timedelta(0, 2)
# if row[0] < td:
# done = True
# else:
# time.sleep(0.1)
s = "select hostname,port,src_filename,dst_filename,rid from requests where src_filename = ? and state = 0 and attempt_count < 3 order by hostname,port"
data = (src_file, )
c.execute(s, data)
rows = c.fetchall()
con.commit()
return rows
def store_and_forward(self):
self._read_header()
header = self.json_header
requests_a = header['requests']
self._open_dest_files(requests_a)
destinations = header['destinations']
self._get_valid_vcons(destinations)
self._process_io()
# close all open files
self._close_files()
# read the footer from the sending machine
self._read_footer()
# send foot to all machines this is streaming to
self._send_footer()
# wait for eof and close
self._close_connections()
self._rename_files(requests_a)
pylantorrent.log(
logging.DEBUG,
"All data sent %s %d" % (self.md5str, len(requests_a)))
# if we got to here it was successfully written to a file
# and we can call it success. Print out a success message for
# everyfile written
vex = LTException(0,
"Success",
header['host'],
int(header['port']),
requests_a,
md5sum=self.md5str)
s = vex.get_printable()
self.print_results(s)
self.clean_up()
def do_it_live(con, rows):
pylantorrent.log(
logging.INFO,
"lan torrent daemon setting up to send %d in a group" % (len(rows)))
c = con.cursor()
dests = []
last_host = None
last_port = None
json_dest = None
rids_all = []
for r in rows:
new_host = r[0]
new_port = int(r[1])
dst_filename = r[3]
src_filename = r[2]
rid = r[4]
rids_all.append(rid)
sz = os.path.getsize(src_filename)
# if it is the same host just tack on another dest file
if new_host == last_host and last_port == new_port:
reqs = json_dest['requests']
new_req = {"filename": dst_filename, "id": rid, 'rename': True}
reqs.append(new_req)
json_dest['requests'] = reqs
else:
if json_dest != None:
dests.append(json_dest)
last_host = new_host
last_port = new_port
json_dest = {}
json_dest['host'] = new_host
json_dest['port'] = new_port
json_dest['requests'] = [{
"filename": dst_filename,
"id": rid,
'rename': True
}]
json_dest['block_size'] = 128 * 1024
json_dest['degree'] = 1
json_dest['length'] = sz
if json_dest != None:
dests.append(json_dest)
final = {}
# for the sake of code resuse this will just be piped into an
# lt daemon processor. /dev/null is used to supress a local write
final['requests'] = [{
'filename': "/dev/null",
'id': str(uuid.uuid1()),
'rename': False
}]
final['host'] = "localhost"
final['port'] = 2893
final['block_size'] = 131072
final['degree'] = 1
final['destinations'] = dests
pylantorrent.log(
logging.INFO,
"request send %s" % (json.dumps(final, sort_keys=True, indent=4)))
pylantorrent.log(logging.INFO, "sending em!")
client = LTClient(src_filename, final)
v = LTServer(client, client)
v.store_and_forward()
rc = 0
es = client.get_incomplete()
bad_rid = []
for k in es:
rc = rc + 1
e = es[k]
pylantorrent.log(logging.ERROR, "error trying to send %s" % (str(e)))
rid = e['id']
bad_rid.append(rid)
# set to retry
u = "update requests set state = ?, message = ?, attempt_count = attempt_count + 1 where rid = ?"
data = (
0,
str(e),
rid,
)
c.execute(u, data)
rids_all.remove(rid)
for rid in rids_all:
# set to compelte
u = "update requests set state = ?, message = ? where rid = ?"
data = (
1,
"Success",
rid,
)
c.execute(u, data)
con.commit()
if len(bad_rid) > 0:
# wait for soemthing in the system to change
# obviously we need something more sophisticated than this
# eventually
time.sleep(5)
return rc
def main(argv=sys.argv[1:]):
pylantorrent.log(logging.INFO, "server starting")
def get_incomplete(self):
try:
self.process_incoming_data()
except Exception, ex:
pylantorrent.log(logging.ERROR, "An error occurred while trying to process the data received so far: %s" % (str(ex)), traceback)
def read(self, blocksize=1):
pylantorrent.log(logging.DEBUG,
"begin reading.... pau is %s" % (str(self.pau)))
if self.pau:
pylantorrent.log(logging.DEBUG, "is pau")
return None
pylantorrent.log(logging.DEBUG, "reading.... ")
if self.file_data:
d = self.data_file.read(blocksize)
if not d:
pylantorrent.log(logging.DEBUG, "no mo file data")
self.file_data = False
else:
pylantorrent.log(logging.DEBUG, "### data len = %d" % (len(d)))
self.md5er.update(d)
return d
pylantorrent.log(logging.DEBUG, "check footer")
if not self.file_data:
pylantorrent.log(logging.DEBUG, "getting footer")
foot = {}
self.md5str = str(self.md5er.hexdigest()).strip()
foot['md5sum'] = self.md5str
d = json.dumps(foot)
pylantorrent.log(logging.DEBUG, "getting footer is now %s" % (d))
self.pau = True
return d
pylantorrent.log(logging.INFO, "request send %s" % (json.dumps(final, sort_keys=True, indent=4)))
pylantorrent.log(logging.INFO, "sending em!")
client = LTClient(src_filename, final)
v = LTServer(client, client)
try:
v.store_and_forward()
except Exception, ex:
pylantorrent.log(logging.ERROR, "an error occured on store and forward: %s" % (str(ex)), traceback)
rc = 0
es = client.get_incomplete()
bad_rid = []
for k in es:
rc = rc + 1
e = es[k]
pylantorrent.log(logging.ERROR, "error trying to send %s" % (str(e)))
rid = e['id']
bad_rid.append(rid)
# set to retry
u = "update requests set state = ?, message = ?, attempt_count = attempt_count + 1 where rid = ?"
data = (0,str(e),rid,)
c.execute(u, data)
rids_all.remove(rid)
for rid in rids_all:
# set to compelte
u = "update requests set state = ?, message = ? where rid = ?"
data = (1,"Success",rid,)
c.execute(u, data)
con.commit()
def read(self, blocksize=1):
pylantorrent.log(logging.DEBUG, "begin reading.... pau is %s" % (str(self.pau)))
if self.pau:
pylantorrent.log(logging.DEBUG, "is pau")
return None
pylantorrent.log(logging.DEBUG, "reading.... ")
if self.file_data:
d = self.data_file.read(blocksize)
if not d:
pylantorrent.log(logging.DEBUG, "no mo file data")
self.file_data = False
else:
pylantorrent.log(logging.DEBUG, "### data len = %d" % (len(d)))
self.md5er.update(d)
return d
pylantorrent.log(logging.DEBUG, "check footer")
if not self.file_data:
pylantorrent.log(logging.DEBUG, "getting footer")
foot = {}
self.md5str = str(self.md5er.hexdigest()).strip()
foot['md5sum'] = self.md5str
d = json.dumps(foot)
pylantorrent.log(logging.DEBUG, "getting footer is now %s" % (d))
self.pau = True
return d
pylantorrent.log(logging.INFO, "request send %s" % (json.dumps(final, sort_keys=True, indent=4)))
pylantorrent.log(logging.INFO, "sending em!")
client = LTClient(src_filename, final)
v = LTServer(client, client)
try:
v.store_and_forward()
except Exception, ex:
pylantorrent.log(logging.ERROR, "an error occured on store and forward: %s" % (str(ex)))
rc = 0
es = client.get_incomplete()
bad_rid = []
for k in es:
rc = rc + 1
e = es[k]
pylantorrent.log(logging.ERROR, "error trying to send %s" % (str(e)))
rid = e['id']
bad_rid.append(rid)
# set to retry
u = "update requests set state = ?, message = ?, attempt_count = attempt_count + 1 where rid = ?"
data = (0,str(e),rid,)
c.execute(u, data)
rids_all.remove(rid)
for rid in rids_all:
# set to compelte
u = "update requests set state = ?, message = ? where rid = ?"
data = (1,"Success",rid,)
c.execute(u, data)
con.commit()
def print_results(self, s):
pylantorrent.log(logging.DEBUG, "printing\n--------- \n%s\n---------------" % (s))
self.outf.write(s)
self.outf.flush()
def main(argv=sys.argv[1:]):
pylantorrent.log(logging.INFO, "server starting")
rc = 1
v = LTServer(sys.stdin, sys.stdout)
try:
v.store_and_forward()
rc = 0
except LTException, ve:
pylantorrent.log(logging.ERROR, "error %s" % (str(ve)), traceback)
s = ve.get_printable()
v.print_results(s)
v.clean_up()
except Exception, ex:
pylantorrent.log(logging.ERROR, "error %s" % (str(ex)), traceback)
vex = LTException(500, str(ex))
s = vex.get_printable()
v.print_results(s)
v.clean_up()
return rc
if __name__ == "__main__":
if 'LANTORRENT_HOME' not in os.environ:
msg = "The env LANTORRENT_HOME must be set"
print msg
raise Exception(msg)
rc = main()
def print_results(self, s):
pylantorrent.log(logging.DEBUG, "printing\n--------- \n%s\n---------------" % (s))
def print_results(self, s):
pylantorrent.log(logging.DEBUG,
"printing\n--------- \n%s\n---------------" % (s))
self.outf.write(s)
self.outf.flush()
def do_it_live(con, rows):
pylantorrent.log(logging.INFO, "lan torrent daemon setting up to send %d in a group" % (len(rows)))
c = con.cursor()
dests = []
last_host = None
last_port = None
json_dest = None
rids_all = []
for r in rows:
new_host = r[0]
new_port = int(r[1])
dst_filename = r[3]
src_filename = r[2]
rid = r[4]
rids_all.append(rid)
sz = os.path.getsize(src_filename)
# if it is the same host just tack on another dest file
if new_host == last_host and last_port == new_port:
reqs = json_dest['requests']
new_req = {"filename" : dst_filename, "id" : rid, 'rename' : True}
reqs.append(new_req)
json_dest['requests'] = reqs
else:
if json_dest != None:
dests.append(json_dest)
last_host = new_host
last_port = new_port
json_dest = {}
json_dest['host'] = new_host
json_dest['port'] = new_port
json_dest['requests'] = [{"filename" : dst_filename, "id" : rid, 'rename' : True}]
json_dest['block_size'] = 128*1024
json_dest['degree'] = 1
json_dest['length'] = sz
if json_dest != None:
dests.append(json_dest)
final = {}
# for the sake of code resuse this will just be piped into an
# lt daemon processor. /dev/null is used to supress a local write
final['requests'] = [{'filename' : "/dev/null", 'id' : str(uuid.uuid1()), 'rename' : False}]
final['host'] = "localhost"
final['port'] = 2893
final['block_size'] = 131072
final['degree'] = 1
final['destinations'] = dests
pylantorrent.log(logging.INFO, "request send %s" % (json.dumps(final, sort_keys=True, indent=4)))
pylantorrent.log(logging.INFO, "sending em!")
client = LTClient(src_filename, final)
v = LTServer(client, client)
v.store_and_forward()
rc = 0
es = client.get_incomplete()
bad_rid = []
for k in es:
rc = rc + 1
e = es[k]
pylantorrent.log(logging.ERROR, "error trying to send %s" % (str(e)))
rid = e['id']
bad_rid.append(rid)
# set to retry
u = "update requests set state = ?, message = ?, attempt_count = attempt_count + 1 where rid = ?"
data = (0,str(e),rid,)
c.execute(u, data)
rids_all.remove(rid)
for rid in rids_all:
# set to compelte
u = "update requests set state = ?, message = ? where rid = ?"
data = (1,"Success",rid,)
c.execute(u, data)
con.commit()
if len(bad_rid) > 0:
# wait for soemthing in the system to change
# obviously we need something more sophisticated than this
# eventually
time.sleep(5)
return rc
def main(argv=sys.argv[1:]):
pylantorrent.log(logging.INFO, "server starting")
rc = 1
v = LTServer(sys.stdin, sys.stdout)
try:
v.store_and_forward()
rc = 0
except LTException, ve:
pylantorrent.log(logging.ERROR, "error %s" % (str(ve)), traceback)
s = ve.get_printable()
v.print_results(s)
v.clean_up()
except Exception, ex:
pylantorrent.log(logging.ERROR, "error %s" % (str(ex)), traceback)
vex = LTException(500, str(ex))
s = vex.get_printable()
v.print_results(s)
v.clean_up()
return rc
if __name__ == "__main__":
if 'LANTORRENT_HOME' not in os.environ:
msg = "The env LANTORRENT_HOME must be set"
print msg
raise Exception(msg)
rc = main()
sys.exit(rc)