def extract(
self,
carrier: CarrierT,
context: Optional[Context] = None,
getter: Getter = default_getter,
) -> Context:
if context is None:
context = Context()
traceid = _extract_identifier(
getter.get(carrier, OT_TRACE_ID_HEADER),
_valid_extract_traceid,
INVALID_TRACE_ID,
)
spanid = _extract_identifier(
getter.get(carrier, OT_SPAN_ID_HEADER),
_valid_extract_spanid,
INVALID_SPAN_ID,
)
sampled = _extract_first_element(
getter.get(carrier, OT_SAMPLED_HEADER)
)
if sampled == "true":
traceflags = TraceFlags.SAMPLED
else:
traceflags = TraceFlags.DEFAULT
if traceid != INVALID_TRACE_ID and spanid != INVALID_SPAN_ID:
context = set_span_in_context(
NonRecordingSpan(
SpanContext(
trace_id=traceid,
span_id=spanid,
is_remote=True,
trace_flags=TraceFlags(traceflags),
)
),
context,
)
baggage = get_all(context) or {}
for key in getter.keys(carrier):
if not key.startswith(OT_BAGGAGE_PREFIX):
continue
baggage[
key[len(OT_BAGGAGE_PREFIX) :]
] = _extract_first_element(getter.get(carrier, key))
for key, value in baggage.items():
context = set_baggage(key, value, context)
return context
def extract(
self,
carrier: textmap.CarrierT,
context: typing.Optional[Context] = None,
getter: textmap.Getter = textmap.default_getter,
) -> Context:
"""Extracts SpanContext from the carrier.
See `opentelemetry.propagators.textmap.TextMapPropagator.extract`
"""
if context is None:
context = Context()
header = getter.get(carrier, self._TRACEPARENT_HEADER_NAME)
if not header:
return context
match = re.search(self._TRACEPARENT_HEADER_FORMAT_RE, header[0])
if not match:
return context
version = match.group(1)
trace_id = match.group(2)
span_id = match.group(3)
trace_flags = match.group(4)
if trace_id == "0" * 32 or span_id == "0" * 16:
return context
if version == "00":
if match.group(5):
return context
if version == "ff":
return context
tracestate_headers = getter.get(carrier, self._TRACESTATE_HEADER_NAME)
if tracestate_headers is None:
tracestate = None
else:
tracestate = TraceState.from_header(tracestate_headers)
span_context = trace.SpanContext(
trace_id=int(trace_id, 16),
span_id=int(span_id, 16),
is_remote=True,
trace_flags=trace.TraceFlags(trace_flags),
trace_state=tracestate,
)
return trace.set_span_in_context(trace.NonRecordingSpan(span_context),
context)
def _get_header_value(
getter: textmap.Getter, carrier: textmap.CarrierT,
) -> typing.Optional[str]:
# first try all lowercase header
header = getter.get(carrier, _TRACE_CONTEXT_HEADER_NAME)
if header:
return header[0]
# otherwise try to find in keys for mixed case
for key in getter.keys(carrier):
if key.lower() == _TRACE_CONTEXT_HEADER_NAME:
header = getter.get(carrier, key)
if header:
return header[0]
return None
def extract(
self,
carrier: CarrierT,
context: typing.Optional[Context] = None,
getter: Getter = default_getter,
) -> Context:
if context is None:
context = Context()
header = getter.get(carrier, self.TRACE_ID_KEY)
if not header:
return context
context = self._extract_baggage(getter, carrier, context)
trace_id, span_id, flags = _parse_trace_id_header(header)
if (trace_id == trace.INVALID_TRACE_ID
or span_id == trace.INVALID_SPAN_ID):
return context
span = trace.NonRecordingSpan(
trace.SpanContext(
trace_id=trace_id,
span_id=span_id,
is_remote=True,
trace_flags=trace.TraceFlags(flags & trace.TraceFlags.SAMPLED),
))
return trace.set_span_in_context(span, context)
def extract(
self,
carrier: CarrierT,
context: typing.Optional[Context] = None,
getter: Getter = default_getter,
) -> Context:
if context is None:
context = Context()
trace_id = extract_first_element(getter.get(carrier,
self.TRACE_ID_KEY))
span_id = extract_first_element(getter.get(carrier,
self.PARENT_ID_KEY))
sampled = extract_first_element(
getter.get(carrier, self.SAMPLING_PRIORITY_KEY))
origin = extract_first_element(getter.get(carrier, self.ORIGIN_KEY))
trace_flags = trace.TraceFlags()
if sampled and int(sampled) in (
constants.AUTO_KEEP,
constants.USER_KEEP,
):
trace_flags = trace.TraceFlags(trace.TraceFlags.SAMPLED)
if trace_id is None or span_id is None:
return context
trace_state = []
if origin is not None:
trace_state.append((constants.DD_ORIGIN, origin))
span_context = trace.SpanContext(
trace_id=int(trace_id),
span_id=int(span_id),
is_remote=True,
trace_flags=trace_flags,
trace_state=trace.TraceState(trace_state),
)
return set_span_in_context(trace.NonRecordingSpan(span_context),
context)
def extract(
self,
carrier: CarrierT,
context: typing.Optional[Context] = None,
getter: Getter = default_getter,
) -> Context:
trace_id_list = getter.get(carrier, self.TRACE_ID_KEY)
span_id_list = getter.get(carrier, self.SPAN_ID_KEY)
if not trace_id_list or not span_id_list:
return trace.set_span_in_context(trace.INVALID_SPAN)
return trace.set_span_in_context(
trace.NonRecordingSpan(
trace.SpanContext(
trace_id=int(trace_id_list[0]),
span_id=int(span_id_list[0]),
is_remote=True,
)
)
)
def extract(
self,
carrier: CarrierT,
context: typing.Optional[Context] = None,
getter: Getter = default_getter,
) -> Context:
if context is None:
context = Context()
trace_header_list = getter.get(carrier, TRACE_HEADER_KEY)
if not trace_header_list or len(trace_header_list) != 1:
return context
trace_header = trace_header_list[0]
if not trace_header:
return context
try:
(
trace_id,
span_id,
sampled,
) = AwsXRayPropagator._extract_span_properties(trace_header)
except AwsParseTraceHeaderError as err:
_logger.debug(err.message)
return context
options = 0
if sampled:
options |= trace.TraceFlags.SAMPLED
span_context = trace.SpanContext(
trace_id=trace_id,
span_id=span_id,
is_remote=True,
trace_flags=trace.TraceFlags(options),
trace_state=trace.TraceState(),
)
if not span_context.is_valid:
_logger.debug(
"Invalid Span Extracted. Inserting INVALID span into provided context."
)
return context
return trace.set_span_in_context(
trace.NonRecordingSpan(span_context), context=context
)
def extract(
self,
carrier: textmap.CarrierT,
context: typing.Optional[Context] = None,
getter: textmap.Getter = textmap.default_getter,
) -> Context:
"""Extract Baggage from the carrier.
See
`opentelemetry.propagators.textmap.TextMapPropagator.extract`
"""
if context is None:
context = get_current()
header = _extract_first_element(
getter.get(carrier, self._BAGGAGE_HEADER_NAME)
)
if not header or len(header) > self._MAX_HEADER_LENGTH:
return context
baggage_entries = header.split(",")
total_baggage_entries = self._MAX_PAIRS
for entry in baggage_entries:
if total_baggage_entries <= 0:
return context
total_baggage_entries -= 1
if len(entry) > self._MAX_PAIR_LENGTH:
continue
try:
name, value = entry.split("=", 1)
except Exception: # pylint: disable=broad-except
continue
context = baggage.set_baggage(
urllib.parse.unquote(name).strip(),
urllib.parse.unquote(value).strip(),
context=context,
)
return context
def extract(
self,
carrier: CarrierT,
context: typing.Optional[Context] = None,
getter: Getter = default_getter,
) -> Context:
if context is None:
context = get_current()
header = getter.get(carrier, self.TRACE_ID_KEY)
if not header:
return trace.set_span_in_context(trace.INVALID_SPAN, context)
fields = _extract_first_element(header).split(":")
context = self._extract_baggage(getter, carrier, context)
if len(fields) != 4:
return trace.set_span_in_context(trace.INVALID_SPAN, context)
trace_id, span_id, _parent_id, flags = fields
if (
trace_id == trace.INVALID_TRACE_ID
or span_id == trace.INVALID_SPAN_ID
):
return trace.set_span_in_context(trace.INVALID_SPAN, context)
span = trace.NonRecordingSpan(
trace.SpanContext(
trace_id=int(trace_id, 16),
span_id=int(span_id, 16),
is_remote=True,
trace_flags=trace.TraceFlags(
int(flags, 16) & trace.TraceFlags.SAMPLED
),
)
)
return trace.set_span_in_context(span, context)
def extract(
self,
carrier: textmap.CarrierT,
context: Optional[Context] = None,
getter: textmap.Getter = textmap.default_getter,
) -> Context:
"""Extract Baggage from the carrier.
See
`opentelemetry.propagators.textmap.TextMapPropagator.extract`
"""
if context is None:
context = get_current()
header = _extract_first_element(
getter.get(carrier, self._BAGGAGE_HEADER_NAME)
)
if not header:
return context
if len(header) > self._MAX_HEADER_LENGTH:
_logger.warning(
"Baggage header `%s` exceeded the maximum number of bytes per baggage-string",
header,
)
return context
baggage_entries = split(_DELIMITER_PATTERN, header)
total_baggage_entries = self._MAX_PAIRS
if len(baggage_entries) > self._MAX_PAIRS:
_logger.warning(
"Baggage header `%s` exceeded the maximum number of list-members",
header,
)
for entry in baggage_entries:
if len(entry) > self._MAX_PAIR_LENGTH:
_logger.warning(
"Baggage entry `%s` exceeded the maximum number of bytes per list-member",
entry,
)
continue
if not entry: # empty string
continue
try:
name, value = entry.split("=", 1)
except Exception: # pylint: disable=broad-except
_logger.warning(
"Baggage list-member `%s` doesn't match the format", entry
)
continue
name = unquote_plus(name).strip().lower()
value = unquote_plus(value).strip()
if not _is_valid_pair(name, value):
_logger.warning("Invalid baggage entry: `%s`", entry)
continue
context = set_baggage(
name,
value,
context=context,
)
total_baggage_entries -= 1
if total_baggage_entries == 0:
break
return context
def extract(
self,
carrier: CarrierT,
context: typing.Optional[Context] = None,
getter: Getter = default_getter,
) -> Context:
if context is None:
context = Context()
trace_id = trace.INVALID_TRACE_ID
span_id = trace.INVALID_SPAN_ID
sampled = "0"
flags = None
single_header = _extract_first_element(
getter.get(carrier, self.SINGLE_HEADER_KEY))
if single_header:
# The b3 spec calls for the sampling state to be
# "deferred", which is unspecified. This concept does not
# translate to SpanContext, so we set it as recorded.
sampled = "1"
fields = single_header.split("-", 4)
if len(fields) == 1:
sampled = fields[0]
elif len(fields) == 2:
trace_id, span_id = fields
elif len(fields) == 3:
trace_id, span_id, sampled = fields
elif len(fields) == 4:
trace_id, span_id, sampled, _ = fields
else:
trace_id = (_extract_first_element(
getter.get(carrier, self.TRACE_ID_KEY)) or trace_id)
span_id = (_extract_first_element(
getter.get(carrier, self.SPAN_ID_KEY)) or span_id)
sampled = (_extract_first_element(
getter.get(carrier, self.SAMPLED_KEY)) or sampled)
flags = (_extract_first_element(getter.get(
carrier, self.FLAGS_KEY)) or flags)
if (trace_id == trace.INVALID_TRACE_ID
or span_id == trace.INVALID_SPAN_ID
or self._trace_id_regex.fullmatch(trace_id) is None
or self._span_id_regex.fullmatch(span_id) is None):
return context
trace_id = int(trace_id, 16)
span_id = int(span_id, 16)
options = 0
# The b3 spec provides no defined behavior for both sample and
# flag values set. Since the setting of at least one implies
# the desire for some form of sampling, propagate if either
# header is set to allow.
if sampled in self._SAMPLE_PROPAGATE_VALUES or flags == "1":
options |= trace.TraceFlags.SAMPLED
return trace.set_span_in_context(
trace.NonRecordingSpan(
trace.SpanContext(
# trace an span ids are encoded in hex, so must be converted
trace_id=trace_id,
span_id=span_id,
is_remote=True,
trace_flags=trace.TraceFlags(options),
trace_state=trace.TraceState(),
)),
context,
)