removal of cver

This commit is contained in:
Andreas Wrede
2026-04-01 20:47:29 -04:00
parent 460d2be9e9
commit 84c1aef51f
6 changed files with 2 additions and 684 deletions
+1 -1
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@@ -248,7 +248,7 @@ threshold_configs:
critical: 2 critical: 2
operator: ">=" operator: ">="
rtt: rtt:
warning: 30 warning: 50
critical: 250.0 critical: 250.0
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-75
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@@ -1,75 +0,0 @@
"""Configuration loader and defaults for hbd."""
import logging
import os
try:
import yaml
except Exception:
yaml = None
DEFAULTS = {
"hb_port": 50003,
"hbd_port": 50004,
"hbd_host": "",
"pickfile": "/tmp/hb.pick",
"logfile": "/var/log/heartbeat.log",
"logfmt": "text",
"pushsrv": "pushover",
"pushover_token": "",
"pushover_user": "",
"interval": 20,
"grace": 2,
"dyndomains": ["wrede.org"],
"watchhosts": [],
"dyndnshosts": [],
"drophosts": [],
"nsupdate_bin": "/usr/bin/nsupdate",
"foreground": False,
"verbose": False,
"debug": 0,
"smtpserver": "smtp.fastmail.com",
"smtpuser": "andreas@wrede.ca",
"smtppassword": "pvtvefyp5gbhnch2",
"smtpport": 587,
"toemail": ["aew.hbd.notify@wrede.ca"],
"fromemail": "aew.hbd@wrede.ca",
"ws_port": 50005,
"wss_port": None,
"cert_path": "/usr/local/etc/ssl/",
"wss_pem": "fullchain.pem",
"wss_key": "privkey.pem",
# Message journal configuration
"journal_enabled": True,
"journal_dir": "/var/log/heartbeat",
"journal_file": "messages.journal",
"journal_max_size": 100 * 1024 * 1024, # 100MB
"journal_max_backups": 10,
"plugins": {},
"thresholds": {},
"threshold_renotify_interval": 3600,
}
def load_config(path=None):
"""Load configuration from a YAML file and merge with defaults.
If YAML is not available or the file does not exist, defaults are returned.
"""
cfg = DEFAULTS.copy()
if not path:
# default path (~/.hb.yaml)
path = os.path.join(os.path.expanduser("~"), ".hb.yaml")
if os.path.exists(path):
if yaml:
with open(path) as fh:
data = yaml.safe_load(fh)
# Merge YAML data with defaults
# Keep all keys from YAML to support plugin configs and future extensions
for k, v in data.items():
cfg[k] = v
else:
# yaml not installed: do not attempt to parse; user must ensure defaults
pass
return cfg
-602
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@@ -1,602 +0,0 @@
#!/usr/bin/env python3
# $Id: hbc,v 1.9 2012/03/29 02:08:36 andreas Exp $
# NEW
import argparse
import sys
import time
import socket
import os
import signal
import select
import traceback
from hashlib import md5
import shutil
import zlib
import subprocess
import syslog
import codecs
from .config import load_config
PORT = 50003
INTERVAL = 10
REOPENC = 6
PIDFILE = "/tmp/hbc.pid"
VER = 6
MAXRECV = 32767
running = True
dorestart = False
warned1 = False
msgonly = False
helpflag = False
verbose = False
fdaemon = False
daemonized = False
msgboot = {}
home = os.environ["HOME"]
configfile = "%s/.hbrc" % home
cmdargs = []
iam = socket.gethostname()
def log(msg):
if fdaemon:
syslog.syslog(syslog.LOG_ERR, msg)
else:
print(msg)
def handler(signum, frame):
if signum == signal.SIGTERM:
cleanup()
class NullDevice:
def write(self, s):
pass
class Conn:
def __init__(self, conId, addr, port, af):
self.conId = conId
self.addr = addr
self.port = port
self.af = af
self.ackcount = 0 # num of accks received
self.lastack = 0 # time() last ACK was received
self.send = 0
self.lastsend = 0 # time() last msg was sent
self.rtts = [0]
self.sock = None
def __str__(self):
return "Con(%s, %s %s)" % (self.addr, self.port, self.af)
def open(self):
self.sock = socket.socket(self.af, socket.SOCK_DGRAM)
self.sock.setsockopt(
socket.SOL_SOCKET,
socket.SO_REUSEADDR,
self.sock.getsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR) | 1,
)
def sendto(self, msg, ID="HTB"): # default ID is HearTBeat
global warned1
if self.send % REOPENC == 0:
self.close()
if not self.sock:
self.open()
msg["name"] = shortname(iam)
msg["id"] = self.conId
msg["ver"] = VER
msg["time"] = time.time()
m = dicttos(ID, msg) # always compress
if verbose:
log("conn.send('%s', (%s:%s) %s)" % (msg, self.addr, self.port, len(m)))
try:
self.sock.sendto(m, (self.addr, self.port))
except socket.error as e:
if not warned1:
log("socket error: %s %s:%s" % (e, self.addr, self.port))
warned1 = True
self.close()
return
self.send += 1
self.lastsend = time.time()
def ack(self, msgDict, now):
try:
self.lastack = msgDict["time"]
mul = 2
except Exception:
self.lastack = now
mul = 1
rtt = (self.lastack - self.lastsend) * mul
if verbose:
log("ack RTT: %0.1f ms (now %s)" % (rtt * 1000.0, now))
self.rtts.append(rtt * 1000.0)
if len(self.rtts) > 10:
del self.rtts[0]
self.ackcount += 1
def close(self):
if self.sock:
self.sock.close()
self.sock = None
def shortname(name):
r = name.split(".")
return r[0]
def dicttos(ID, d):
s = []
for k in d:
if isinstance(d[k], float):
s.append("%s=%0.5f" % (k, d[k]))
else:
s.append("%s=%s" % (k, d[k]))
pk = ";".join(s)
zpk = zlib.compress(pk.encode(), 6)
ID = "!" + ID + ":"
return ID.encode() + zpk
def stodict(msg):
d = {}
if len(msg) > 0 and chr(msg[0]) == "!":
pk = zlib.decompress(msg[5:]).decode()
d["ID"] = msg[1:4].decode()
else:
r0 = msg.split(":", 1)
pk = r0[1]
d["ID"] = r0[0]
r = pk.split(";")
for v in r:
vr = v.split("=", 1)
k = vr[0].strip()
if len(vr) == 1:
d[k] = None
else:
v = vr[1].strip()
try:
v = eval(v)
except Exception:
pass
d[k] = v
if verbose:
print("msg is %s" % d)
return d
def XXstodict(msg):
d = {}
r0 = msg.split(":", 1)
if len(r0) == 1:
return None
if r0[0][0] == "!": # compressed
pk = zlib.decompress(msg[len(r0[0]) + 1 :])
d["ID"] = r0[0][1:]
else:
pk = r0[1]
d["ID"] = r0[0]
r = pk.split(";")
for v in r:
vr = v.split("=", 1)
k = vr[0].strip()
if len(vr) == 1:
d[k] = None
else:
v = vr[1].strip()
try:
if v[0].isdigit():
v = eval(v)
except Exception:
pass
d[k] = v
return d
def syslogtrace(note):
logm = "%s hbc died: \n%s" % (note, traceback.format_exc())
log(logm)
for line in logm.split("\n"):
syslog.syslog(syslog.LOG_ERR, " tb: %s" % line)
if verbose:
print(logm)
conId = 1
def createConnections(hosts):
global conId
for host in hosts:
if verbose:
log("createConnections for %s" % host)
try:
rs = socket.getaddrinfo(host, hb_port, 0, 0, socket.SOL_UDP)
except socket.gaierror:
logm = "%s hbc died: \n%s" % ("createConnections", traceback.format_exc())
if verbose:
log(logm)
return None
for r in rs:
if verbose:
log("address %s" % str(r))
if r[0] in [10, 24, 28, 30]: # for Linux, NetBSD, FreeBSD
af = socket.AF_INET6
elif r[0] == 2:
af = socket.AF_INET
else:
print("dont know this net type: %s" % r[0][0])
sys.exit(1)
addr = r[4][0]
conns[conId] = Conn(conId, addr, hb_port, af)
if verbose:
print("cons[%s] = %s" % (conId, str(conns[conId])))
conId += 1
def doexec(conn, data):
try:
ro = subprocess.check_output(
data, stderr=subprocess.STDOUT, shell=True
).decode()
fail = "OK"
except subprocess.CalledProcessError as e:
ro = str(e)
fail = "CalledProcessError"
except Exception as e:
syslogtrace("System")
ro = "N/A"
fail = "cmd failed: %s" % e
msg = {"service": "command", "msg": fail + " " + ro}
conns[conn].sendto(msg)
def doupdate(conn, msgDict):
fail = None
try:
code = codecs.decode(msgDict["code"], "base64").decode()
csum = msgDict["csum"]
except Exception as e:
fail = "csum/code missing: %s" % e
if not fail:
fail = doupdateone(code, csum)
msg = {"service": "update", "msg": fail if fail else "OK"}
conns[conn].sendto(msg)
if not fail:
log("hc updates, fs = %s" % (len(code)))
return fail
def doupdateone(code, csum):
m = md5()
m.update(code.encode())
icsum = m.hexdigest()
if icsum != csum:
return "checksum error"
fn = sys.argv[0]
ofn = "%s.sav" % fn
try:
shutil.copy2(fn, ofn)
except Exception as e:
return "cannot make backup copy: %s" % e
try:
fh = open(fn, "w")
fh.write(code)
fh.close()
except Exception as e:
return "cannot write new code: %s" % e
return None
def restart():
if verbose:
print("restart: execv %s %s" % (sys.argv[0], [sys.argv[0]] + cmdargs))
syslog.syslog(syslog.LOG_ERR, "restart %s" % (sys.argv[0]))
e = "fallthrough"
try:
os.execv(sys.argv[0], [sys.argv[0]] + cmdargs)
except Exception:
pass
print("should not be here:", str(e))
log("restart failed: %s" % e)
def process():
global running, dorestart
nextReport = time.time()
while running:
while time.time() < nextReport:
ifiles = {}
conIds = {}
for conn in conns:
if conns[conn].sock:
ifiles[conns[conn].sock.fileno()] = conns[conn].sock
conIds[conns[conn].sock.fileno()] = conn
sleep = nextReport - time.time()
if sleep <= 0:
break
try:
r = select.select(list(ifiles.keys()), [], [], sleep)
now = (
time.time()
) # nb: delay from actual packet arrival to select is ca. 105ms!
except KeyboardInterrupt:
running = False
break
except SystemExit:
log("daemon exit, running was %s" % running)
if running:
running = False
break
except Exception:
if running:
syslogtrace("select")
running = False
break
for rfh in r[0]:
conn = conIds[rfh]
data, addr = ifiles[rfh].recvfrom(MAXRECV)
if verbose:
print("sock.recvfrom: %s (%s) %s" % (addr, len(data), data[:4]))
try:
msgDict = stodict(data)
except Exception as e:
print(
"failed to parse incoming data from %s: %s (%s)"
% (addr, data, e)
)
continue
if verbose:
print(
"sock.recvfrom: %s (%s) %s"
% (addr, len(data), str(msgDict)[:80])
)
if msgDict is None:
print("bad backet from %s (%s) %s" % (addr, len(data), data))
elif msgDict["ID"] == "ACK":
conns[conn].ack(msgDict, now)
elif msgDict["ID"] == "UPD":
if doupdate(conn, msgDict) is None:
if verbose:
print("process: restart after update")
dorestart = True
break
elif msgDict["ID"] == "CMD":
doexec(conn, msgDict["cmd"])
else:
doexec(conn, data) # deprecated until no more VER - hbc
if dorestart:
running = False
break
if not running:
break
for conn in conns:
msg = {"acks": conns[conn].ackcount, "rtt": conns[conn].rtts[-1]}
conns[conn].sendto(msg)
time.sleep(
0.1
) # N.B. Linux (i.e. Rasperry Pi 3 drops the second pkg unless delayed
if nextReport + interval >= time.time():
nextReport += interval
else:
nextReport = time.time() + interval
if verbose:
log("process: done running")
def cleanup():
global running
if not running:
return
if verbose:
log("cleanup")
running = False
for conn in conns:
msg = {"shutdown": 1, "acks": conns[conn].ackcount}
conns[conn].sendto(msg)
conns[conn].close()
time.sleep(1)
closeall()
def closeall():
if verbose:
syslog.syslog(syslog.LOG_ERR, "closecall")
for conn in conns:
conns[conn].close()
def daemonize(
working_dir="/", stdin="/dev/zero", stdout="/dev/null", stderr="/dev/null"
):
"""
Does the UNIX double-fork magic, see Stevens' "Advanced Programming in the
UNIX Environment" for details (ISBN 0201563177)
http://www.yendor.com/programming/unix/apue/proc/fork2.c
"""
try:
# first fork
pid = os.fork()
if pid > 0:
# exit from first parent
os._exit(0)
except OSError as e:
sys.stderr.write("fork #1 failed: %d (%s)\n" % (e.errno, e.strerror))
os._exit(1)
# decouple from parent environment
os.chdir(working_dir)
os.setsid()
os.umask(0)
# second fork
try:
pid = os.fork()
if pid > 0:
# exit from second parent
os._exit(0)
except OSError as e:
sys.stderr.write("fork #2 failed: %d (%s)\n" % (e.errno, e.strerror))
sys.exit(1)
# redirects standard file descriptors
sys.stdout.flush()
sys.stderr.flush()
si = open(stdin, "r")
so = open(stdout, "a+")
se = open(stderr, "a+")
os.dup2(si.fileno(), sys.stdin.fileno())
os.dup2(so.fileno(), sys.stdout.fileno())
os.dup2(se.fileno(), sys.stderr.fileno())
#
# Main program
#
def build_parser():
parser = argparse.ArgumentParser(
prog="hbc",
description="HeartBeatClient - send a heatbeat message to a HeartBeatDaemon",
formatter_class=argparse.RawDescriptionHelpFormatter,
)
parser.add_argument("-b", "--boot", action="store_true", help="Send a boot message")
parser.add_argument(
"-c", "--config", dest="configfile", help="Config file path (YAML)"
)
parser.add_argument("-m", "--message", dest="message", help="Send a message")
parser.add_argument(
"-n", "--name", dest="name", help="Name to use in heartbeat message"
)
parser.add_argument(
"-d", "--daemon", action="store_true", help="Run in daemon mode"
)
parser.add_argument("-v", "--verbose", action="store_true", help="Verbose output")
parser.add_argument(
"-x", "--debug", action="count", default=0, help="Increase debug level"
)
parser.add_argument("hosts", nargs="+", help="Heartbeat daemon hosts to send to")
return parser
def main(argv=None):
global msgonly, verbose, fdaemon, daemonized, cmdargs, iam, hb_port, conns, interval, hb_hosts
parser = build_parser()
args = parser.parse_args(argv)
config = load_config(args.configfile)
# Apply CLI overrides
if args.boot:
msgboot["boot"] = 1
if args.message:
msgboot["service"] = "service"
msgboot["msg"] = args.message
msgonly = True
if args.name:
iam = args.name
cmdargs += ["-n", iam]
if args.daemon:
fdaemon = True
if args.verbose:
verbose = True
cmdargs.append("--verbose")
if args.debug:
config.setdefault("debug", 0)
config["debug"] += args.debug
cmdargs.append("-" + "x" * args.debug)
if verbose:
print("cmdargs for restart are %s" % cmdargs)
#
# set defaults
hb_hosts = args.hosts
hb_port = config.get("hb_port", PORT)
interval = config.get("interval", INTERVAL)
#
if verbose:
print("notice: hb_hosts: %s" % str(hb_hosts))
print("notice: hb_port: %s" % hb_port)
print("notice: interval: %s" % interval)
print("notice: iam: %s" % iam)
print("notice: msgonly: %s" % msgonly)
print("notice: msgboot: %s" % msgboot)
if not msgonly:
msgboot["interval"] = interval
conns = {}
while True:
if verbose:
log("create connections")
createConnections(hb_hosts)
if len(conns) != 0:
break
if verbose:
log("no connections yet, sleep a bit")
time.sleep(2)
if verbose:
log("%s connections created" % (len(conns)))
if len(msgboot) > 0:
if verbose:
print("on boot")
msgboot["acks"] = 0
for conn in conns:
conns[conn].sendto(msgboot)
if msgonly:
if verbose:
print("msgboot done msgonly=%s" % msgonly)
closeall()
sys.exit(0)
#
syslog.openlog("hbc", syslog.LOG_PID, syslog.LOG_DAEMON)
if fdaemon:
print("daemoinizing.")
daemonize()
daemonized = True
syslog.syslog(syslog.LOG_ERR, "starting heartbeat to %s" % ",".join(hb_hosts))
signal.signal(signal.SIGTERM, handler)
try:
process()
except Exception as e:
syslogtrace("process")
if verbose:
print("err: process exit: %s" % e)
if verbose:
log("main: cleanup")
cleanup()
if dorestart:
restart()
if __name__ == "__main__":
main()
-5
View File
@@ -130,7 +130,6 @@
function createRow(data) { function createRow(data) {
var row = document.createElement("tr"); var row = document.createElement("tr");
var c_name = document.createElement("td"); var c_name = document.createElement("td");
var c_ver = document.createElement("td");
var c_ipv4addr = document.createElement("td"); var c_ipv4addr = document.createElement("td");
var c_ipv4state = document.createElement("td"); var c_ipv4state = document.createElement("td");
var c_ipv4latency = document.createElement("td"); var c_ipv4latency = document.createElement("td");
@@ -144,7 +143,6 @@
var c_ipv6statets = document.createElement("td"); var c_ipv6statets = document.createElement("td");
c_ipv6statets.style.textAlign = "right"; c_ipv6statets.style.textAlign = "right";
row.appendChild(c_name); row.appendChild(c_name);
row.appendChild(c_ver);
row.appendChild(c_ipv4addr); row.appendChild(c_ipv4addr);
row.appendChild(c_ipv4state); row.appendChild(c_ipv4state);
row.appendChild(c_ipv4latency); row.appendChild(c_ipv4latency);
@@ -158,7 +156,6 @@
} else { } else {
c_name.innerHTML = data.name; c_name.innerHTML = data.name;
} }
c_ver.innerHTML = data.cver;
c_ipv4addr.innerHTML = data.connections[0].addr; c_ipv4addr.innerHTML = data.connections[0].addr;
c_ipv4state.innerHTML = data.connections[0].state; c_ipv4state.innerHTML = data.connections[0].state;
if (data.connections.length > 1) { if (data.connections.length > 1) {
@@ -274,7 +271,6 @@
<thead> <thead>
<tr> <tr>
<th>Name</th> <th>Name</th>
<th>Ver</th>
<th>IPv4 Addr</th> <th>IPv4 Addr</th>
<th>State</th> <th>State</th>
<th style="text-align: right">Latencey</th> <th style="text-align: right">Latencey</th>
@@ -289,7 +285,6 @@
{% for host in hosts %} {% for host in hosts %}
<tr> <tr>
<td>{{ host.name }}</td> <td>{{ host.name }}</td>
<td>{{ host.ver if host.ver else '' }}</td>
{% for conn in host.connections %} {% for conn in host.connections %}
<td>{{ conn.addr if conn.addr else '' }}</td> <td>{{ conn.addr if conn.addr else '' }}</td>
<td>{{ conn.state if conn.state else '' }}</td> <td>{{ conn.state if conn.state else '' }}</td>
+1 -1
View File
@@ -44,6 +44,6 @@ def test_handle_cmd_sends_command():
handle_datagram(msg2, ("127.0.0.1", 50000), ftr, ctx) handle_datagram(msg2, ("127.0.0.1", 50000), ftr, ctx)
# should have sent ACK and the command; last send should be non-empty # should have sent ACK and the command; last send should be non-empty
assert len(ftr.sent) >= 1 assert len(ftr.sent) >= 1
# the command for cver 0 will be sent as raw cmd string # the command for ??0 will be sent as raw cmd string
# so at least one send contains b'doit' or similar # so at least one send contains b'doit' or similar
assert any(b"doit" in s[0] for s in ftr.sent) assert any(b"doit" in s[0] for s in ftr.sent)