Exemple #1
0
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)
Exemple #2
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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)
Exemple #3
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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)
Exemple #4
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 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()
Exemple #6
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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)
Exemple #8
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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
Exemple #9
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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
Exemple #10
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 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)
Exemple #12
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    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)
Exemple #13
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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)
Exemple #14
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 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 = []
Exemple #15
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 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 = []
Exemple #16
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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()
Exemple #18
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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)
Exemple #19
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 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 = []
Exemple #21
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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)
Exemple #23
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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
Exemple #24
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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))
Exemple #26
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 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)
Exemple #28
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 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))
Exemple #29
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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
Exemple #30
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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
Exemple #31
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    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()
Exemple #32
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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")
Exemple #34
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 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)
Exemple #35
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    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
Exemple #36
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    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()
Exemple #37
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    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
Exemple #38
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    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()
Exemple #40
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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))
Exemple #42
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 def print_results(self, s):
     pylantorrent.log(logging.DEBUG,
                      "printing\n--------- \n%s\n---------------" % (s))
     self.outf.write(s)
     self.outf.flush()
Exemple #43
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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)