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      pyruse/counter.py
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      pyruse/main.py
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GNU GENERAL PUBLIC LICENSE
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THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

+ 35
- 0
README.md View File

@ -0,0 +1,35 @@
# Python peruser of systemd-journal
This program is intended to be used as a lightweight replacement for both epylog and fail2ban.
The wanted features are these:
* Peruse all log entries from systemd’s journal, and only those (ie: no log files).
* Passively wait on new entries; no active polling.
* Filter-out uninteresting log lines according to the settings.
* Act on matches in the journal, with some pre-defined actions.
* Create a daily report with 2 parts:
- events of interest (according to the settings),
- and other non-filtered-out log entries.
* Send an immediate email when something important happens (according to the settings).
Interesting [filtering entries](https://www.freedesktop.org/software/systemd/man/systemd.journal-fields.html) are:
* `_TRANSPORT`: how the log entry got to the journal (`stdout`, `syslog`, `journal`)
* `PRIORITY`: see https://en.wikipedia.org/wiki/Syslog#Severity_level
* `SYSLOG_FACILITY`: see https://en.wikipedia.org/wiki/Syslog#Facility
* `_CAP_EFFECTIVE`: effective capabilities as an hexadecimal mask
* `_BOOT_ID`: boot identifier (may be used to detect reboots)
* `_MACHINE_ID`: internal systemd ID for the machine where the log entry occurred
* `_HOSTNAME`: short hostname of the machine where the log entry occurred
* `_UID`: user ID of the systemd service that produced the log entry
* `_GID`: group ID of the systemd service that produced the log entry
* `SYSLOG_IDENTIFIER`: service name as reported to the “syslog” API
* `_COMM`: name of the command that produced the log entry
* `_EXE`: path to the executable file launched by systemd
* `_SYSTEMD_CGROUP`: cgroup of the service, eg. `/system.slice/systemd-uwsgi.slice/uwsgi@nextcloud.service`
* `_SYSTEMD_UNIT`: name of the systemd unit that produced the log entry
* `_SYSTEMD_SLICE`: name of the systemd slice
* `_CMDLINE`: process name as reported by the main process of the systemd service
* `_PID`: process ID of the systemd unit’s main process
* `MESSAGE`: the actual message of the log entry
* `__REALTIME_TIMESTAMP`: Python `datetime` of the log entry, formatted as: `YYYY-MM-DD HH:MM:SS:µµµµµµ`

+ 9
- 0
TODO.md View File

@ -0,0 +1,9 @@
# TODO
* Insert the GPL stuff in the source files.
* Create a filter that rejects all messages that match a series of regular expressions.
* Handle OTHER messages in a file in order to avoid filling the RAM waiting for the report to be sent.
* Write the systemd service that starts pyruse on boot.
* Write the systemd service+timer that restores bans after a reboot.
* Maybe switch from Step.run() recursion to Step.run()-in-a-loop to avoid too-deep call stacks.
* Eventually make the code more elegant, as I learn more about Python…

+ 3
- 0
extra/bin/pyruse View File

@ -0,0 +1,3 @@
#!/usr/bin/python
from pyruse import main
main.main()

+ 19
- 0
pyruse/actions/action_counterRaise.py View File

@ -0,0 +1,19 @@
import datetime
from pyruse import base, counter
class Action(base.Action, counter.Counter):
def __init__(self, args):
base.Action.__init__(self)
counter.Counter.__init__(self, args["counter"])
self.keyName = args["for"]
self.save = args.get("save", None)
keepSeconds = args.get("keepSeconds", None)
if keepSeconds:
self.keepSeconds = datetime.timedelta(seconds = keepSeconds)
else:
self.keepSeconds = None
def act(self, entry):
count = self.augment(entry[self.keyName], self.keepSeconds)
if self.save:
entry[self.save] = count

+ 19
- 0
pyruse/actions/action_counterReset.py View File

@ -0,0 +1,19 @@
import datetime
from pyruse import base, counter
class Action(base.Action, counter.Counter):
def __init__(self, args):
base.Action.__init__(self)
counter.Counter.__init__(self, args["counter"])
self.keyName = args["for"]
self.save = args.get("save", None)
graceSeconds = args.get("graceSeconds", None)
if graceSeconds:
self.graceSeconds = datetime.timedelta(seconds = graceSeconds)
else:
self.graceSeconds = None
def act(self, entry):
self.reset(entry[self.keyName], self.graceSeconds)
if self.save:
entry[self.save] = 0

+ 113
- 0
pyruse/actions/action_dailyReport.py View File

@ -0,0 +1,113 @@
import datetime
import string
from pyruse import base, email
class Action(base.Action):
WARN = "WARN"
INFO = "INFO"
OTHER = "OTHER"
_messages = None
_hour = 0
_txtDocStart = '= Pyruse Report\n\n'
_txtHeadWarn = '== WARNING Messages\n\n'
_txtHeadInfo = '\n== Information Messages\n\n'
_txtHeadOther = '\n== Other log events\n\n'
_txtTableDelim = '|===============================================================================\n'
_txtTableHeader = '|Count|Message |Date+time for each occurrence\n'
_txtPreDelim = '----------\n'
_htmDocStart = '<html>\n<head><meta charset="utf-8"/></head>\n<body>\n<h1>Pyruse Report</h1>\n'
_htmDocStop = '</body></html>'
_htmHeadWarn = '<h2>WARNING Messages</h2>\n'
_htmHeadInfo = '<h2>Information Messages</h2>\n'
_htmHeadOther = '<h2>Other log events</h2>\n'
_htmTableStart = '<table>\n<tr><th>Count</th><th>Message</th><th>Date+time for each occurrence</th></tr>\n'
_htmTableStop = '</table>\n'
_htmPreStart = '<pre>'
_htmPreStop = '</pre>\n'
def _encode(self, text):
return text.replace('&', '&amp;').replace('<', '&lt;').replace('>', '&gt;')
def _toAdoc(self, msg, times):
return "\n|{count:^5d}|{text}\n |{times}\n".format_map(
{"count": len(times), "text": msg, "times": " +\n ".join(str(t) for t in times)}
)
def _toHtml(self, msg, times):
return "<tr><td>{count}</td><td>{text}</td><td>{times}</td></tr>\n".format_map(
{"count": len(times), "text": self._encode(msg), "times": "<br/>".join(str(t) for t in times)}
)
def __init__(self, args):
super().__init__()
self.level = args["level"]
self.isOther = self.level == Action.OTHER
self.template = args["message"]
values = {}
for (_void, name, _void, _void) in string.Formatter().parse(self.template):
if name:
values[name] = None
self.values = values
def act(self, entry):
messages = Action._messages[self.level]
for (name, _void) in self.values.items():
self.values[name] = entry.get(name, None)
msg = self.template.format_map(self.values)
if self.isOther:
messages.append((entry["__REALTIME_TIMESTAMP"], msg))
elif msg in messages:
messages[msg].append(entry["__REALTIME_TIMESTAMP"])
else:
messages[msg] = [entry["__REALTIME_TIMESTAMP"]]
thisHour = datetime.datetime.today().hour
if thisHour < Action._hour:
self._sendReport()
Action._hour = thisHour
def _sendReport(self):
html = Action._htmDocStart + Action._htmHeadWarn
text = Action._txtDocStart + Action._txtHeadWarn
text += Action._txtTableDelim + Action._txtTableHeader
html += Action._htmTableStart
for (msg, times) in sorted(Action._messages[Action.WARN].items(), key = lambda i: i[0]):
text += self._toAdoc(msg, times)
html += self._toHtml(msg, times)
text += Action._txtTableDelim
html += Action._htmTableStop
text += Action._txtHeadInfo
html += Action._htmHeadInfo
text += Action._txtTableDelim + Action._txtTableHeader
html += Action._htmTableStart
for (msg, times) in sorted(Action._messages[Action.INFO].items(), key = lambda i: i[0]):
text += self._toAdoc(msg, times)
html += self._toHtml(msg, times)
text += Action._txtTableDelim
html += Action._htmTableStop
text += Action._txtHeadOther
html += Action._htmHeadOther
text += Action._txtPreDelim
html += Action._htmPreStart
for (time, msg) in Action._messages[Action.OTHER]:
m = '%s: %s\n' % (time, msg)
text += m
html += self._encode(m)
text += Action._txtPreDelim
html += Action._htmPreStop
html += Action._htmDocStop
email.Mail(text, html).send()
Action._messages = _resetMessages()
def _resetMessages():
return {Action.WARN: {}, Action.INFO: {}, Action.OTHER: []}
Action._messages = _resetMessages()

+ 19
- 0
pyruse/actions/action_email.py View File

@ -0,0 +1,19 @@
import string
from pyruse import base, email
class Action(base.Action):
def __init__(self, args):
super().__init__()
self.subject = args.get("subject", "Pyruse Notification")
self.template = args["message"]
values = {}
for (_void, name, _void, _void) in string.Formatter().parse(self.template):
if name:
values[name] = None
self.values = values
def act(self, entry):
for (name, _void) in self.values.items():
self.values[name] = entry.get(name, None)
msg = self.template.format_map(self.values)
email.Mail(msg).setSubject(self.subject).send()

+ 58
- 0
pyruse/actions/action_nftBan.py View File

@ -0,0 +1,58 @@
import datetime
import json
import os
import subprocess
from pyruse import base, config
class Action(base.Action):
_storage = config.Config().asMap().get("storage", "/var/lib/pyruse") \
+ "/" + os.path.basename(__file__) + ".json"
_nft = config.Config().asMap().get("nftBan", {}).get("nft", ["/usr/bin/nft"])
def __init__(self, args):
super().__init__()
self.ipv4Set = args["nftSetIPv4"]
self.ipv6Set = args["nftSetIPv6"]
self.field = args["IP"]
self.banSeconds = args.get("banSeconds", None)
def act(self, entry):
ip = entry[self.field]
nftSet = self.ipv6Set if ":" in ip else self.ipv4Set
newBan = {"IP": ip, "nftSet": nftSet}
now = datetime.datetime.utcnow()
bans = []
previousTS = None
try:
with open(Action._storage) as dataFile:
for ban in json.load(dataFile):
if ban["timestamp"] <= now.timestamp():
continue
elif {k: ban[k] for k in newBan.keys()} == newBan:
# should not happen, since the IP is banned…
previousTS = ban["timestamp"]
else:
bans.append(ban)
except IOError:
pass # new file
if self.banSeconds:
until = now + datetime.timedelta(seconds = self.banSeconds)
timeout = " timeout %ss" % str(self.banSeconds)
else:
until = now + datetime.timedelta(days = 365)
timeout = ""
if previousTS:
cmd = list(Action._nft)
cmd.append("delete element %s {%s}" % (nftSet, ip))
subprocess.run(cmd)
cmd = list(Action._nft)
cmd.append("add element %s {%s%s}" % (nftSet, ip, timeout))
subprocess.run(cmd)
newBan["timestamp"] = until.timestamp()
bans.append(newBan)
with open(Action._storage, "w") as dataFile:
json.dump(bans, dataFile)

+ 59
- 0
pyruse/base.py View File

@ -0,0 +1,59 @@
import abc
from pyruse import log
class Step(abc.ABC):
def __init__(self):
self.nextStep = None
@abc.abstractmethod
def run(self, entry):
pass
def setNextStep(self, obj):
self.nextStep = obj
class Filter(Step):
def __init__(self):
super().__init__()
self.altStep = None
def setAltStep(self, obj):
self.altStep = obj
@abc.abstractmethod
def filter(self, entry):
pass
def run(self, entry):
global filterFallback
try:
nextStep = self.nextStep if self.filter(entry) else self.altStep
except Exception as e:
log.error("Error while executing %s: %s." % (type(self), str(e)))
nextStep = self.altStep
if nextStep:
nextStep.run(entry)
elif filterFallback is not None:
filterFallback.run(entry)
class Action(Step):
def __init__(self):
super().__init__()
@abc.abstractmethod
def act(self, entry):
pass
def run(self, entry):
global actionFallback
try:
self.act(entry)
except Exception as e:
log.error("Error while executing %s: %s." % (type(self), str(e)))
if self.nextStep:
self.nextStep.run(entry)
elif self != filterFallback and self != actionFallback and actionFallback is not None:
actionFallback.run(entry)
filterFallback = None
actionFallback = None

+ 30
- 0
pyruse/config.py View File

@ -0,0 +1,30 @@
import json
import os
from collections import OrderedDict
from pyruse import log
class Config:
CONF_NAME = "pyruse.conf"
_paths = None
# __main__ must be the first to create a Config object, then paths is remembered
def __init__(self, paths = None):
if paths is None:
paths = Config._paths
Config._paths = paths
conf = None
for p in paths:
try:
with open(os.path.join(p, "pyruse.json")) as conffile:
conf = json.load(conffile, object_pairs_hook = OrderedDict)
except IOError:
log.debug("IOError while opening %s\n" % conffile)
except json.JSONDecodeError:
log.debug("JSONDecodeError while opening %s\n" % conffile)
if conf is None:
raise FileNotFoundError("File `%s` not found in either of %s." \
% (Config.CONF_NAME, paths))
self.conf = conf
def asMap(self):
return self.conf

+ 50
- 0
pyruse/counter.py View File

@ -0,0 +1,50 @@
import datetime
class Counter():
_counters = {}
def _getCounter(self, counterName):
if counterName not in Counter._counters:
Counter._counters[counterName] = {}
return Counter._counters[counterName]
def _cleanTicks(self, ticks, refDT):
for tick in list(ticks):
if tick and tick < refDT:
ticks.remove(tick)
def __init__(self, counter):
self.counterName = counter
def augment(self, counterKey, duration = None):
counter = self._getCounter(self.counterName)
if counterKey not in counter:
counter[counterKey] = ([], None) # [countUntil,…], graceTermDate
(ticks, grace) = counter[counterKey]
now = datetime.datetime.utcnow()
self._cleanTicks(ticks, now)
if grace and grace < now:
grace = None
if not grace:
ticks.append(now + duration if duration else None)
counter[counterKey] = (ticks, grace)
return len(ticks)
def lower(self, counterKey):
counter = self._getCounter(self.counterName)
if counterKey not in counter:
return 0
(ticks, _void) = counter[counterKey]
now = datetime.datetime.utcnow()
self._cleanTicks(ticks, now)
if len(ticks) > 0:
ticks.pop()
return len(ticks)
def reset(self, counterKey, graceDuration = None):
counter = self._getCounter(self.counterName)
if graceDuration:
now = datetime.datetime.utcnow()
counter[counterKey] = ([], now + graceDuration)
elif counterKey in counter:
del(counter[counterKey])

+ 34
- 0
pyruse/email.py View File

@ -0,0 +1,34 @@
import subprocess
from email.headerregistry import Address
from email.message import EmailMessage
from pyruse import config
class Mail:
_mailConf = config.Config().asMap().get("email", {})
def __init__(self, text, html = None):
self.text = text
self.html = html
self.mailSubject = Mail._mailConf.get("subject", "Pyruse Report")
self.mailFrom = Mail._mailConf.get("from", "pyruse")
self.mailTo = Mail._mailConf.get("to", ["hostmaster"])
def setSubject(self, subject):
if subject:
self.mailSubject = subject
return self
def send(self):
message = EmailMessage()
message["Subject"] = self.mailSubject
message["From"] = Address(addr_spec = self.mailFrom)
message["To"] = (Address(addr_spec = a) for a in self.mailTo)
message.set_content(self.text)
if self.html:
message.add_alternative(self.html, subtype = "html")
subprocess.run(
Mail._mailConf.get("sendmail", ["/usr/bin/sendmail", "-t"]),
input = message.as_bytes()
)

+ 10
- 0
pyruse/filters/filter_equals.py View File

@ -0,0 +1,10 @@
from pyruse import base
class Filter(base.Filter):
def __init__(self, args):
super().__init__()
self.field = args["field"]
self.value = args["value"]
def filter(self, entry):
return entry.get(self.field, None) == self.value

+ 10
- 0
pyruse/filters/filter_greaterOrEquals.py View File

@ -0,0 +1,10 @@
from pyruse import base
class Filter(base.Filter):
def __init__(self, args):
super().__init__()
self.field = args["field"]
self.value = args["value"]
def filter(self, entry):
return entry.get(self.field, None) >= self.value

+ 18
- 0
pyruse/filters/filter_pcre.py View File

@ -0,0 +1,18 @@
import re
from pyruse import base
class Filter(base.Filter):
def __init__(self, args):
super().__init__()
self.field = args["field"]
self.re = re.compile(args["re"])
self.save = args.get("save", [])
def filter(self, entry):
match = self.re.search(entry.get(self.field, ""))
if match:
for group, name in enumerate(self.save, start = 1):
entry[name] = match.group(group)
for name, value in match.groupdict().items():
entry[name] = value
return match

+ 14
- 0
pyruse/filters/filter_userExists.py View File

@ -0,0 +1,14 @@
import pwd
from pyruse import base
class Filter(base.Filter):
def __init__(self, args):
super().__init__()
self.field = args["field"]
def filter(self, entry):
try:
pwd.getpwnam(entry.get(self.field, ""))
return True
except KeyError:
return False

+ 21
- 0
pyruse/log.py View File

@ -0,0 +1,21 @@
from systemd import journal
EMERG = 0 # System is unusable.
ALERT = 1 # Action must be taken immediately.
CRIT = 2 # Critical conditions, such as hard device errors.
ERR = 3 # Error conditions.
WARNING = 4 # Warning conditions.
NOTICE = 5 # Normal but significant conditions.
INFO = 6 # Informational messages.
DEBUG = 7
def log(level, string):
journal.send(string, PRIORITY = level)
def debug(string):
global DEBUG
log(DEBUG, string)
def error(string):
global ERR
log(ERR, string)

+ 43
- 0
pyruse/main.py View File

@ -0,0 +1,43 @@
import os
import sys
from systemd import journal
from pyruse import base, config, module, workflow
PYRUSE_ENVVAR = "PYRUSE_EXTRA"
PYRUSE_PATHS = []
def _setPyrusePaths():
global PYRUSE_ENVVAR, PYRUSE_PATHS
for p in "/etc/pyruse", os.environ.get(PYRUSE_ENVVAR):
if p != "" and os.path.isdir(p):
PYRUSE_PATHS.insert(0, p)
sys.path.insert(1, p)
PYRUSE_PATHS.insert(0, os.curdir)
def _doForEachJournalEntry(fct):
j = journal.Reader(journal.SYSTEM_ONLY)
j.seek_tail()
j.get_previous()
while True:
event = j.wait(-1)
if event == journal.APPEND:
for entry in j:
fct(j)
def main():
_setPyrusePaths()
conf = config.Config(PYRUSE_PATHS)
fback = conf.asMap().get("fallback", {})
if "all_filters_failed" in fback:
base.filterFallback = module.get(fback.get("all_filters_failed")).module
else:
base.filterFallback = None
if "finalize_after_last_action" in fback:
base.actionFallback = module.get(fback.get("finalize_after_last_action")).module
else:
base.actionFallback = None
wf = workflow.Workflow(conf.asMap().get("actions", {}))
_doForEachJournalEntry(wf.run)
if __name__ == '__main__':
main()

+ 39
- 0
pyruse/module.py View File

@ -0,0 +1,39 @@
import importlib
from pyruse import log
_modules = {}
class Module:
def __init__(self, isAction, module, thenRun, elseRun):
self.isAction = isAction
self.isFilter = not isAction
self.module = module
self.thenRun = thenRun
self.elseRun = elseRun
def get(moduleDesc):
if "filter" in moduleDesc:
isAction = False
mod = _getModule("pyruse.filters." + moduleDesc["filter"])
obj = mod.Filter(moduleDesc.get("args", {}))
thenRun = None
elseRun = moduleDesc["else"] if "else" in moduleDesc else None
elif "action" in moduleDesc:
isAction = True
mod = _getModule("pyruse.actions." + moduleDesc["action"])
obj = mod.Action(moduleDesc.get("args", {}))
thenRun = moduleDesc["then"] if "then" in moduleDesc else None
elseRun = None
else:
raise ValueError("Step is neither “filter” nor “action”: %s\n" % str(moduleDesc))
return Module(isAction, obj, thenRun, elseRun)
def _getModule(modName):
if modName not in _modules:
try:
module = importlib.import_module(modName)
except ImportError as e:
log.error("Module %s not found.\n" % modName)
raise e
_modules[modName] = module
return _modules[modName]

+ 66
- 0
pyruse/workflow.py View File

@ -0,0 +1,66 @@
from pyruse import log, module
class Workflow:
def __init__(self, actions):
seen = {}
dangling = []
firstStep = None
for label in actions:
if not label in seen:
(entryPoint, seen, newDangling) = self._initChain(actions, label, seen)
if firstStep is None:
firstStep = entryPoint
elif len(dangling) > 0:
for setter in dangling:
setter(entryPoint)
dangling = newDangling
self.run = firstStep.run if firstStep else self._noRun
def _noRun(self, whatever):
pass
def _initChain(self, actions, label, seen):
dangling = []
previousSetter = None
firstStep = None
isPreviousDangling = False
isThenCalled = False
for step in actions[label]:
if isThenCalled:
break
mod = module.get(step)
obj = mod.module
if mod.isAction:
if mod.thenRun:
(seen, dangling) = \
self._branchToChain(obj.setNextStep, mod.thenRun, actions, seen, dangling)
isThenCalled = True
isPreviousDangling = False
else:
if mod.elseRun:
(seen, dangling) = \
self._branchToChain(obj.setAltStep, mod.elseRun, actions, seen, dangling)
else:
dangling.append(obj.setAltStep)
isPreviousDangling = True
if previousSetter:
previousSetter(obj)
else:
firstStep = obj
previousSetter = obj.setNextStep
if isPreviousDangling:
dangling.append(previousSetter)
seen[label] = firstStep
return (firstStep, seen, dangling)
def _branchToChain(self, parentSetter, branchName, actions, seen, dangling):
if branchName in seen:
parentSetter(seen[branchName])
elif branchName in actions:
(entryPoint, seen, newDangling) = \
self._initChain(actions, branchName, seen)
parentSetter(entryPoint)
dangling.extend(newDangling)
else:
raise ValueError("Action chain not found: %s\n" % branchName)
return (seen, dangling)

+ 2
- 0
tests/acted_on.log.test_ref View File

@ -0,0 +1,2 @@
{'__REALTIME_TIMESTAMP': datetime.datetime(2118, 1, 1, 8, 1, 1, 7), '_HOSTNAME': 'dmz', 'service': 'login', 'MESSAGE': 'Accepted password for root from 1.2.3.4', 'user': 'root', 'ip': '1.2.3.4'}
{'__REALTIME_TIMESTAMP': datetime.datetime(2118, 1, 1, 8, 1, 1, 10), '_HOSTNAME': 'dmz', 'service': 'login', 'MESSAGE': 'Failed password for foobar from 1.2.3.4', 'user': 'foobar', 'ip': '1.2.3.4', 'failsCount': 3}

+ 49
- 0
tests/action_counterRaise.py View File

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import time
from pyruse.actions.action_counterRaise import Action
from pyruse.actions import action_counterReset
def whenNonExistingThenRaiseTo1():
entry = {"k": "raise#1"}
Action({"counter": "test", "for": "k", "save": "action_counterRaise1"}).act(entry)
assert entry["action_counterRaise1"] == 1
def whenKeepSecondsThenRaiseUntilTimeOut():
entry = {"k": "raise#2"}
action = Action({"counter": "test", "for": "k", "save": "action_counterRaise2", "keepSeconds": 3})
action.act(entry)
assert entry["action_counterRaise2"] == 1
time.sleep(2)
action.act(entry)
assert entry["action_counterRaise2"] == 2
time.sleep(2)
action.act(entry)
assert entry["action_counterRaise2"] == 2 # one tick timed out
def whenDifferentKeyThenDifferentCounter():
entry1 = {"k": "raise#3"}
entry2 = {"k": "raise#4"}
action = Action({"counter": "test", "for": "k", "save": "action_counterRaise3"})
action.act(entry1)
assert entry1["action_counterRaise3"] == 1
action.act(entry2)
assert entry2["action_counterRaise3"] == 1
action.act(entry2)
assert entry2["action_counterRaise3"] == 2
action.act(entry2)
assert entry2["action_counterRaise3"] == 3
action.act(entry1)
assert entry1["action_counterRaise3"] == 2
def whenGraceTimeThenCountIs0():
entry = {"k": "raise#5"}
raiseAct = Action({"counter": "test", "for": "k", "save": "action_counterRaise4"})
graceAct = action_counterReset.Action({"counter": "test", "for": "k", "graceSeconds": 1, "save": "action_counterRaise4"})
raiseAct.act(entry)
assert entry["action_counterRaise4"] == 1
graceAct.act(entry)
assert entry["action_counterRaise4"] == 0
raiseAct.act(entry)
assert entry["action_counterRaise4"] == 0
time.sleep(1)
raiseAct.act(entry)
assert entry["action_counterRaise4"] == 1

+ 48
- 0
tests/action_counterReset.py View File

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import time
from pyruse.actions.action_counterReset import Action
from pyruse.actions import action_counterRaise
def whenResetThenCountIs0():
entry = {"k": "reset#1"}
resetAct = Action({"counter": "test", "for": "k", "save": "action_counterReset1"})
raiseAct = action_counterRaise.Action({"counter": "test", "for": "k", "save": "action_counterReset1"})
raiseAct.act(entry)
assert entry["action_counterReset1"] == 1
resetAct.act(entry)
assert entry["action_counterReset1"] == 0
def whenNoGraceTimeThenRaiseWorks():
entry = {"k": "reset#2"}
resetAct = Action({"counter": "test", "for": "k", "save": "action_counterReset2"})
raiseAct = action_counterRaise.Action({"counter": "test", "for": "k", "save": "action_counterReset2"})
raiseAct.act(entry)
assert entry["action_counterReset2"] == 1
resetAct.act(entry)
assert entry["action_counterReset2"] == 0
raiseAct.act(entry)
assert entry["action_counterReset2"] == 1
def whenGraceTimeThenRaiseFails():
entry = {"k": "reset#3"}
resetAct = Action({"counter": "test", "for": "k", "save": "action_counterReset3", "graceSeconds": 1})
raiseAct = action_counterRaise.Action({"counter": "test", "for": "k", "save": "action_counterReset3"})
raiseAct.act(entry)
assert entry["action_counterReset3"] == 1
resetAct.act(entry)
assert entry["action_counterReset3"] == 0
raiseAct.act(entry)
assert entry["action_counterReset3"] == 0
def whenGraceTimeThenRaiseWorksAtGraceEnd():
entry = {"k": "reset#4"}
resetAct = Action({"counter": "test", "for": "k", "save": "action_counterReset4", "graceSeconds": 1})
raiseAct = action_counterRaise.Action({"counter": "test", "for": "k", "save": "action_counterReset4"})
raiseAct.act(entry)
assert entry["action_counterReset4"] == 1
resetAct.act(entry)
assert entry["action_counterReset4"] == 0
raiseAct.act(entry)
assert entry["action_counterReset4"] == 0
time.sleep(1)
raiseAct.act(entry)
assert entry["action_counterReset4"] == 1

+ 77
- 0
tests/action_dailyReport.py View File

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import os
import re
from datetime import datetime
from pyruse.actions.action_dailyReport import Action
from pyruse import config
mail_filename = "email.dump"
wAction = Action({"level": "WARN", "message": "WarnMsg {m}"})
iAction = Action({"level": "INFO", "message": "InfoMsg {m}"})
oAction = Action({"level": "OTHER", "message": "MiscMsg {m}"})
def newEntry(m):
return {"__REALTIME_TIMESTAMP": datetime.utcnow(), "m": m}
def whenNewDayThenReport():
if os.path.exists(mail_filename):
os.remove(mail_filename)
Action._hour = 0
oAction.act(newEntry("message1"))
assert not os.path.exists(mail_filename)
Action._hour = 25
oAction.act(newEntry("message2"))
assert os.path.exists(mail_filename)
os.remove(mail_filename)
def whenEmailThenCheckContents():
if os.path.exists(mail_filename):
os.remove(mail_filename)
Action._hour = 0
wAction.act(newEntry("messageW"))
iAction.act(newEntry("messageI"))
Action._hour = 25
oAction.act(newEntry("messageO"))
assert os.path.exists(mail_filename)
conf = config.Config().asMap().get("email", {})
reSubject = re.compile(r"^Subject: (.*)")
reFrom = re.compile(r"^From: (.*)")
reTo = re.compile(r"^To: (.*)")
subjOK = False
fromOK = False
toOK = False
nbWarn = 0
nbInfo = 0
nbMisc = 0
with open(mail_filename, 'rt') as m:
for line in m:
match = reSubject.match(line)
if match:
subjOK = match.group(1) == conf.get("subject", "Pyruse Report")
match = reFrom.match(line)
if match:
fromOK = match.group(1) == conf.get("from", "pyruse")
match = reTo.match(line)
if match:
toOK = match.group(1).split(", ") == conf.get("to", ["hostmaster"])
if "WarnMsg" in line:
nbWarn += 1
if "InfoMsg" in line:
nbInfo += 1
if "MiscMsg" in line:
nbMisc += 1
assert subjOK
assert fromOK
assert toOK
assert nbWarn == 2
assert nbInfo == 2
assert nbMisc == 2
os.remove(mail_filename)
def whenReportThenNewSetOfMessages():
if os.path.exists(mail_filename):
os.remove(mail_filename)
Action._hour = 25
oAction.act(newEntry("message3"))
assert os.path.exists(mail_filename)
os.remove(mail_filename)
whenEmailThenCheckContents()

+ 70
- 0
tests/action_email.py View File

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import os
import re
from pyruse.actions.action_email import Action
from pyruse import config
mail_filename = "email.dump"
def whenEmailWithSubjectThenCheckContents():
if os.path.exists(mail_filename):
os.remove(mail_filename)
Action({"subject": "Test1", "message": "TestMsg{m}"}).act({"m": "#1"})
assert os.path.exists(mail_filename)
conf = config.Config().asMap().get("email", {})
reSubject = re.compile(r"^Subject: (.*)")
reFrom = re.compile(r"^From: (.*)")
reTo = re.compile(r"^To: (.*)")
subjOK = False
fromOK = False
toOK = False
nbMsg = 0
with open(mail_filename, 'rt') as m:
for line in m:
match = reSubject.match(line)
if match:
subjOK = match.group(1) == "Test1"
match = reFrom.match(line)
if match:
fromOK = match.group(1) == conf.get("from", "pyruse")
match = reTo.match(line)
if match:
toOK = match.group(1).split(", ") == conf.get("to", ["hostmaster"])
if "TestMsg#1" in line:
nbMsg += 1
assert subjOK
assert fromOK
assert toOK
assert nbMsg == 1
os.remove(mail_filename)
def whenEmailWithoutSubjectThenCheckContents():
if os.path.exists(mail_filename):
os.remove(mail_filename)
Action({"message": "TestMsg{m}"}).act({"m": "#2"})
assert os.path.exists(mail_filename)
conf = config.Config().asMap().get("email", {})
reSubject = re.compile(r"^Subject: (.*)")
reFrom = re.compile(r"^From: (.*)")
reTo = re.compile(r"^To: (.*)")
subjOK = False
fromOK = False
toOK = False
nbMsg = 0
with open(mail_filename, 'rt') as m:
for line in m:
match = reSubject.match(line)
if match:
subjOK = match.group(1) == "Pyruse Notification"
match = reFrom.match(line)
if match:
fromOK = match.group(1) == conf.get("from", "pyruse")
match = reTo.match(line)
if match:
toOK = match.group(1).split(", ") == conf.get("to", ["hostmaster"])
if "TestMsg#2" in line:
nbMsg += 1
assert subjOK
assert fromOK
assert toOK
assert nbMsg == 1
os.remove(mail_filename)

+ 136
- 0
tests/action_nftBan.py View File

@ -0,0 +1,136 @@
import json
import os
import time
from pyruse.actions.action_nftBan import Action
nftBanCmd = "nftBan.cmd"
nftBanState = "action_nftBan.py.json"
def _clean():
if os.path.exists(nftBanCmd):
os.remove(nftBanCmd)
if os.path.exists(nftBanState):
os.remove(nftBanState)
def whenBanIPv4ThenAddToIPv4Set():
_clean()
Action({"IP": "ip", "nftSetIPv4": "I4 ban", "nftSetIPv6": "I6 ban"}).act({"ip": "10.0.0.1"})
</