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update head to take -c. update quotes for remotesyslog (#2318)

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This commit is contained in:
Michel Oosterhof
2024-09-18 11:13:48 +08:00
committed by GitHub
parent 25f4ffd58b
commit 0024c264f0
2 changed files with 22 additions and 13 deletions
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31
src/cowrie/commands/fs.py
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@ -181,32 +181,34 @@ class Command_head(HoneyPotCommand):
head command head command
""" """
n: int = 10 linecount: int = 10
bytecount: int = 0
def head_application(self, contents: bytes) -> None: def head_application(self, contents: bytes) -> None:
i = 0 if self.bytecount:
contentsplit = contents.split(b"\n") self.writeBytes(contents[: self.bytecount])
for line in contentsplit: elif self.linecount:
if i < self.n: linesplit = contents.split(b"\n")
for line in linesplit[: self.linecount]:
self.writeBytes(line + b"\n") self.writeBytes(line + b"\n")
i += 1
def head_get_file_contents(self, filename: str) -> None: def head_get_file_contents(self, filename: str) -> None:
try: try:
contents = self.fs.file_contents(filename) contents = self.fs.file_contents(filename)
self.head_application(contents) self.head_application(contents)
except Exception: except fs.FileNotFound:
self.errorWrite( self.errorWrite(
f"head: cannot open `{filename}' for reading: No such file or directory\n" f"head: cannot open `{filename}' for reading: No such file or directory\n"
) )
def start(self) -> None: def start(self) -> None:
self.n = 10 self.lines: int = 10
self.bytecount: int = 0
if not self.args or self.args[0] == ">": if not self.args or self.args[0] == ">":
return return
else: else:
try: try:
optlist, args = getopt.getopt(self.args, "n:") optlist, args = getopt.getopt(self.args, "c:n:")
except getopt.GetoptError as err: except getopt.GetoptError as err:
self.errorWrite(f"head: invalid option -- '{err.opt}'\n") self.errorWrite(f"head: invalid option -- '{err.opt}'\n")
self.exit() self.exit()
@ -215,9 +217,16 @@ class Command_head(HoneyPotCommand):
for opt in optlist: for opt in optlist:
if opt[0] == "-n": if opt[0] == "-n":
if not opt[1].isdigit(): if not opt[1].isdigit():
self.errorWrite(f"head: illegal offset -- {opt[1]}\n") self.errorWrite(f"head: invalid number of lines: `{opt[1]}`\n")
else: else:
self.n = int(opt[1]) self.linecount = int(opt[1])
self.bytecount = 0
elif opt[0] == "-c":
if not opt[1].isdigit():
self.errorWrite(f"head: invalid number of bytes: `{opt[1]}`\n")
else:
self.bytecount = int(opt[1])
self.linecount = 0
if not self.input_data: if not self.input_data:
files = self.check_arguments("head", args) files = self.check_arguments("head", args)

4
src/cowrie/output/remotesyslog.py
View File

@ -23,7 +23,7 @@ class Output(cowrie.core.output.Output):
self.logger = logging.getLogger("cowrieLogger") self.logger = logging.getLogger("cowrieLogger")
self.handler = logging.handlers.SysLogHandler(address = (self.host, self.port), socktype= None if protocol == 'udp' else socket.SOCK_STREAM) self.handler = logging.handlers.SysLogHandler(address = (self.host, self.port), socktype= None if protocol == "udp" else socket.SOCK_STREAM)
self.logger.addHandler( self.logger.addHandler(
self.handler self.handler
@ -40,4 +40,4 @@ class Output(cowrie.core.output.Output):
if i.startswith("log_") or i == "time" or i == "system": if i.startswith("log_") or i == "time" or i == "system":
del event[i] del event[i]
self.logger.warning(repr(event)+'\n') self.logger.warning(repr(event)+"\n")