def _get_sanitized_and_translated_piggybacked_hostname(self, orig_piggyback_header):
piggybacked_hostname = orig_piggyback_header[4:-4]
if not piggybacked_hostname:
return
piggybacked_hostname = config.translate_piggyback_host(self._hostname, piggybacked_hostname)
if piggybacked_hostname == self._hostname or not piggybacked_hostname:
return # unpiggybacked "normal" host
# Protect Check_MK against unallowed host names. Normally source scripts
# like agent plugins should care about cleaning their provided host names
# up, but we need to be sure here to prevent bugs in Check_MK code.
# a) Replace spaces by underscores
return piggybacked_hostname.replace(" ", "_")
def _parse_info(self, lines):
"""Split agent output in chunks, splits lines by whitespaces.
Returns a HostSections() object.
"""
sections = {}
# Unparsed info for other hosts. A dictionary, indexed by the piggybacked host name.
# The value is a list of lines which were received for this host.
piggybacked_raw_data = {}
persisted_sections = {} # handle sections with option persist(...)
host = None
section_content = []
section_options = {}
agent_cache_info = {}
separator = None
encoding = None
for line in lines:
line = line.rstrip("\r")
stripped_line = line.strip()
if stripped_line[:4] == '<<<<' and stripped_line[-4:] == '>>>>':
host = stripped_line[4:-4]
if not host:
host = None
else:
host = config.translate_piggyback_host(
self._hostname, host)
if host == self._hostname:
host = None # unpiggybacked "normal" host
# Protect Check_MK against unallowed host names. Normally source scripts
# like agent plugins should care about cleaning their provided host names
# up, but we need to be sure here to prevent bugs in Check_MK code.
# a) Replace spaces by underscores
if host:
host = host.replace(" ", "_")
elif host: # processing data for an other host
piggybacked_raw_data.setdefault(host, []).append(line)
# Found normal section header
# section header has format <<<name:opt1(args):opt2:opt3(args)>>>
elif stripped_line[:3] == '<<<' and stripped_line[-3:] == '>>>':
section_header = stripped_line[3:-3]
headerparts = section_header.split(":")
section_name = headerparts[0]
section_options = {}
for o in headerparts[1:]:
opt_parts = o.split("(")
opt_name = opt_parts[0]
if len(opt_parts) > 1:
opt_args = opt_parts[1][:-1]
else:
opt_args = None
section_options[opt_name] = opt_args
section_content = sections.get(section_name, None)
if section_content is None: # section appears in output for the first time
section_content = []
sections[section_name] = section_content
try:
separator = chr(int(section_options["sep"]))
except Exception:
separator = None
# Split of persisted section for server-side caching
if "persist" in section_options:
until = int(section_options["persist"])
cached_at = int(time.time()) # Estimate age of the data
cache_interval = int(until - cached_at)
agent_cache_info[section_name] = (cached_at,
cache_interval)
persisted_sections[section_name] = (cached_at, until,
section_content)
if "cached" in section_options:
agent_cache_info[section_name] = tuple(
map(int, section_options["cached"].split(",")))
# The section data might have a different encoding
encoding = section_options.get("encoding")
elif stripped_line != '':
if "nostrip" not in section_options:
line = stripped_line
if encoding:
line = config.decode_incoming_string(line, encoding)
else:
line = config.decode_incoming_string(line)
section_content.append(line.split(separator))
return HostSections(sections, agent_cache_info, piggybacked_raw_data,
persisted_sections)
