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otaman/pysim_otaman_server/server.py
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catarrh b0b8d02fe7 custom files: any DF parent path at any depth (v2.2.11) 
The parent field was a select over custom DFs only, so a standard DF (e.g.
MF/7F20) could not be a parent and canonical entries under one were dropped
on import. It is now a free-text path with suggestions from the root, custom
DFs and DFs of the loaded tree (any depth); a bare FID chain is completed
from the root selector. Validation accepts standard or not-yet-seen parents
(flagged in the list), rejects a parent known to be an EF, and import keeps
such entries. Custom-file edits re-inject the loaded tree: new nodes appear
at once, renamed model nodes are restored and injected nodes removed when
their entry goes away. Help updated (the form lives in Profiler, not Card
reader). SW cache otaman-v176.
2026-09-16 23:47:30 +03:00

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import json
import sys
import os
import time
import threading
import traceback
import re
import codecs
from datetime import datetime, timedelta
from http.server import HTTPServer, BaseHTTPRequestHandler
from io import StringIO
from pySim.transport import ApduTracer, ProactiveHandler
from pySim.cards import UiccCardBase
from pysim_otaman_server import httpota
from pysim_otaman_server import scp81
from smartcard.CardMonitoring import CardMonitor, CardObserver
import gsm0338 # registers 'gsm03.38' codec
from construct import GreedyBytes
from osmocom.construct import GsmOrUcs2Adapter
from osmocom.tlv import BER_TLV_IE
VERSION = '2.2.11'
MAX_ENVELOPE_SEGMENTS = 5 # max SMS segments for outgoing C-APDU in ENVELOPE
# Static file serving (the PWA lives in <repo>/frontend, served by this server
# so the UI and the API share an origin and no CORS/PNA is involved).
_STATIC_MIME = {
'.html': 'text/html; charset=utf-8',
'.css': 'text/css',
'.js': 'application/javascript',
'.json': 'application/json',
'.png': 'image/png',
'.svg': 'image/svg+xml',
'.ico': 'image/x-icon',
'.webmanifest': 'application/manifest+json',
'.map': 'application/json',
'.wasm': 'application/wasm',
'.woff': 'font/woff',
'.woff2': 'font/woff2',
}
_T0 = time.time()
_TIMING = False
_APDU_N = 0
_RESET_N = 0
def _timing_on():
global _TIMING
_TIMING = True
def _tlog(msg):
if not _TIMING:
return
sys.stderr.write('TIMING [+%7.3fs] %s\n' % (time.time() - _T0, msg))
_APDU_TIMES = []
_APDU_TIME_COLLECT = False
def _classify_apdu(cmd):
"""Map a command APDU to a snapshot timing category by instruction byte."""
if not cmd or len(cmd) < 4:
return None
return {'A4': 'select', 'B0': 'read_binary', 'B2': 'read_record'}.get(cmd[2:4].upper())
def _collect_apdu_times():
"""Start collecting per-command times. (Re)attaches our tracer if pySim
nulled it (equip does). Callers hold _CARD_LOCK, so collection cannot be
interleaved by the background poll thread."""
global _APDU_TIME_COLLECT
scc = getattr(_server_ref, 'scc', None) if _server_ref else None
tp = getattr(scc, '_tp', None) if scc else None
if tp is not None and tp.apdu_tracer is None:
tp.apdu_tracer = _LoggingApduTracer()
_APDU_TIMES.clear()
_APDU_TIME_COLLECT = True
def _end_apdu_time_collection():
"""Stop collecting and return the collected [{type, ms}, ...] list."""
global _APDU_TIME_COLLECT
_APDU_TIME_COLLECT = False
times = list(_APDU_TIMES)
_APDU_TIMES.clear()
return times
class StderrApduTracer(ApduTracer):
def __init__(self):
super().__init__()
self._cmd_start = 0
def trace_command(self, cmd):
self._cmd_start = time.time()
def trace_reset(self):
global _RESET_N
_RESET_N += 1
if _TIMING:
sys.stderr.write('TIMING [+%7.3fs] RESET #%d\n' % (time.time() - _T0, _RESET_N))
def trace_response(self, cmd, sw, resp):
global _APDU_N
_APDU_N += 1
elapsed = int((time.time() - self._cmd_start) * 1000)
if _APDU_TIME_COLLECT:
category = _classify_apdu(cmd)
if category:
_APDU_TIMES.append({'type': category, 'ms': elapsed})
if _TIMING:
msg = 'APDU-TRACE(+%7.3fs #%d, %dms): %s → SW: %s' % (time.time() - _T0, _APDU_N, elapsed, cmd, sw)
else:
msg = 'APDU-TRACE(%dms): %s → SW: %s' % (elapsed, cmd, sw)
if resp:
msg += ' RESP: %s' % resp
os.write(2, (msg + '\n').encode())
class _LoggingApduTracer(StderrApduTracer):
"""StderrApduTracer that additionally records the SW of TERMINAL RESPONSE
APDUs sent by pySim's auto-handler (which happen outside our own chain code)
onto the most recent log entry that is still missing its tr_sw."""
def trace_response(self, cmd, sw, resp):
super().trace_response(cmd, sw, resp)
if len(cmd) >= 4 and cmd[2:4] == '14':
for entry in reversed(_PROACTIVE_LOG):
if 'tr_hex' in entry and 'tr_sw' not in entry:
entry['tr_sw'] = sw
break
ERROR_MSGS = {
'en': {
'app_not_init': 'Server not initialized',
'no_card_state': 'No card state available',
'reader_not_init': 'Reader not initialized',
'not_found': 'Not found',
},
'ru': {
'app_not_init': 'Сервер не инициализирован',
'no_card_state': 'Состояние карты недоступно',
'reader_not_init': 'Считыватель не инициализирован',
'not_found': 'Не найдено',
},
}
def _get_lang(headers):
lang = headers.get('Accept-Language', 'en')
if lang not in ('en', 'ru'):
lang = 'en'
return lang
def _err(key, lang):
return ERROR_MSGS.get(lang, ERROR_MSGS['en']).get(key, key)
def _strip_ansi(text):
return re.sub(r'\x1b\[[0-9;]*[a-zA-Z]', '', text)
def _parse_help_text(text):
result = {'usage': '', 'description': '', 'args': []}
lines = text.split('\n')
in_usage = False
in_pos = False
in_opt = False
for line in lines:
stripped = line.strip()
if stripped.startswith('usage:'):
result['usage'] = stripped[6:].strip()
in_usage = True
in_pos = in_opt = False
elif stripped.startswith('positional arguments:'):
in_pos = True
in_opt = in_usage = False
elif stripped.startswith('options:') or stripped.startswith('optional arguments:'):
in_opt = True
in_pos = in_usage = False
elif in_pos and stripped and not stripped.startswith('usage:'):
m = re.match(r'^(\S+)\s+(.+)$', stripped)
if m:
result['args'].append({'name': m.group(1), 'type': 'positional', 'help': m.group(2)})
elif in_opt and stripped and not stripped.startswith('usage:'):
m = re.match(r'^(\S+(?:,\s*\S+)?)\s+(\S+\s+)?(.+)?$', stripped)
if m:
names = m.group(1)
first_name = names.split(',')[0].strip()
result['args'].append({'name': first_name, 'type': 'optional', 'help': (m.group(3) or '').strip()})
elif not in_pos and not in_opt and not in_usage:
if stripped:
result['description'] = (result['description'] + ' ' + stripped).strip()
return result
def _get_file_type(lchan, cur_file):
if cur_file and cur_file.name:
if cur_file.name.startswith('EF.'):
if lchan and lchan.selected_file_fcp:
ft = lchan.selected_file_type()
if ft != 'df':
return lchan.selected_file_structure()
return 'transparent'
if cur_file.name.startswith('DF.') or cur_file.name.startswith('ADF.') or cur_file.name == 'MF':
return 'df'
if lchan and lchan.selected_file_fcp:
return lchan.selected_file_structure()
return None
def _fid4(sel):
"""True if sel is a 4-digit hex FID."""
return bool(re.fullmatch(r'[0-9a-fA-F]{4}', str(sel or '')))
def _file_by_sel(parent, sel):
"""Resolve sel (FID or symbolic name, case-insensitive) among parent's direct children."""
if parent is None or not sel:
return None
s = str(sel).strip().lower()
for f in (getattr(parent, 'children', None) or {}).values():
if f.fid and f.fid.lower() == s:
return f
if f.name and f.name.lower() == s:
return f
return None
def _app_by_sel(rs, sel):
"""Resolve an ADF by AID or application name (case-insensitive)."""
if rs is None or not sel:
return None
s = str(sel).strip().lower()
for aid, adf in (rs.mf.applications or {}).items():
if aid.lower() == s or (adf.name and adf.name.lower() == s):
return adf
return None
def _find_in_tree(root, sel):
"""All model files matching sel (fid or name) below root; unique-match helper."""
s = str(sel or '').strip().lower()
found = []
seen = set()
stack = [root]
while stack:
cur = stack.pop()
if id(cur) in seen:
continue
seen.add(id(cur))
candidates = list((getattr(cur, 'children', None) or {}).values())
candidates += list((getattr(cur, 'applications', None) or {}).values())
for f in candidates:
if (f.fid and f.fid.lower() == s) or (f.name and f.name.lower() == s):
found.append(f)
stack.append(f)
return found
def _select_with_parent(lchan, name, parent_sel, app, parent_path=None, allow_probe=False):
"""Select name strictly within the requested parent.
Every model-known FID/name is resolved through the parent's children and
selected with lchan.select_file(); pySim's global selectables and its
probe_file() fallback are never used for model files, so a same-FID file
under a different parent can no longer be picked and the model is not
mutated. Model-unknown 4-hex segments (custom files) are probed only when
allow_probe is set and are detached again via the returned cleanup.
Returns (selected_file, cleanup): cleanup is None unless a probe happened;
handlers must call it in a finally block after using the selection.
"""
rs = app.rs
prev = lchan.selected_file
probes = []
parent = rs.mf
lchan.select_file(parent, app)
segs = [s for s in (parent_path or ([parent_sel] if parent_sel else [])) if s]
for seg in segs:
if str(seg).upper() in ('MF', '3F00'):
continue
f = _app_by_sel(rs, seg) or _file_by_sel(parent, seg)
if f is None and not parent_path:
matches = _find_in_tree(rs.mf, seg)
if len(matches) > 1:
raise RuntimeError('Ambiguous parent selector: %s' % seg)
if matches:
f = matches[0]
if f is None:
if allow_probe and _fid4(seg):
fid = str(seg).lower()
probes.append((parent, fid))
lchan.probe_file(fid, app)
parent = lchan.selected_file
continue
raise RuntimeError('File not found: %s' % seg)
lchan.select_file(f, app)
parent = f
target = None
if str(name).upper() in ('MF', '3F00'):
target = rs.mf
if target is None:
target = _file_by_sel(parent, name) or _app_by_sel(rs, name)
if target is None and not parent_path and not parent_sel:
matches = _find_in_tree(rs.mf, name)
if len(matches) > 1:
raise RuntimeError('Ambiguous file selector: %s' % name)
if matches:
target = matches[0]
if target is not None:
lchan.select_file(target, app)
elif allow_probe and _fid4(name):
fid = str(name).lower()
probes.append((parent, fid))
lchan.probe_file(fid, app)
else:
raise RuntimeError('File not found: %s' % name)
cleanup = None
if probes:
def cleanup():
for p, fid in reversed(probes):
try:
(getattr(p, 'children', None) or {}).pop(fid, None)
except Exception:
pass
try:
lchan.select_file(prev, app)
except Exception:
try:
lchan.select_file(rs.mf, app)
except Exception:
pass
return lchan.selected_file, cleanup
def _select_path(lchan, path, app):
"""Select a file described by a full path.
Path is '/' separated; the first element is 'MF' (or '3F00'), an ADF AID,
or an ADF name; remaining elements are FIDs or file names. Resolution is
strictly parent-scoped (see _select_with_parent); unknown 4-hex segments
are custom files and are probed without touching the model tree.
"""
parts = [p for p in (path or '').split('/') if p]
if not parts:
raise RuntimeError('Empty path')
return _select_with_parent(lchan, parts[-1], None, app, parent_path=parts[:-1], allow_probe=True)
def _parse_tree_output(output):
lines = (output or '').split('\n')
children = []
for line in lines:
if line.startswith(' '):
continue
m = re.match(r'^(\S+)\s+([0-9a-fA-F]{4})?(?:\s|$)', line)
if m:
cname = m.group(1)
cfid = m.group(2).lower() if m.group(2) else None
children.append({
'name': cname,
'fid': cfid,
'isDir': cname.startswith('ADF.') or cname.startswith('DF.') or cname == 'MF',
})
return children
def _encode_sms_oa(number):
digits = [int(c) for c in number if c.isdigit()]
oa = bytes([len(digits), 0x81])
for i in range(0, len(digits), 2):
first = digits[i]
second = digits[i + 1] if i + 1 < len(digits) else 0xF
oa += bytes([(second << 4) | first])
return oa
def _bcd_pair(value):
return ((value % 10) << 4) | ((value // 10) % 10)
def _encode_scts(dt=None):
dt = dt or datetime.now().astimezone()
offset = dt.utcoffset() or timedelta()
quarters = int(offset.total_seconds() // 900)
tz = _bcd_pair(abs(quarters)) | (0x08 if quarters < 0 else 0x00)
return bytes([
_bcd_pair(dt.year % 100),
_bcd_pair(dt.month),
_bcd_pair(dt.day),
_bcd_pair(dt.hour),
_bcd_pair(dt.minute),
_bcd_pair(dt.second),
tz,
])
def _cap_apdu_sequence(loadfile_aid, module_aid, loadfile_data, sd_aid='',
privileges='00', install_params='', stk_params='',
make_selectable=True, block_size=240, instance_aid=None):
"""RAM (GP) APDU sequence for a parsed .cap: INSTALL [for load], LOAD
blocks (240-byte payloads, block counter in P2, last block P1=0x80),
INSTALL [for install]. Shared by the SCP80 delivery path and the SCP81
command-script path; keep byte-compatible with /api/ram-install."""
sd = sd_aid or 'A000000003000000'
ifl_data = _lv(loadfile_aid) + _lv(sd) + '00' + '00' + '00'
apdus = ['80E60200%02X%s00' % (len(ifl_data) // 2, ifl_data)]
loadfile_tlv = 'C4' + _ber_len(len(loadfile_data) // 2) + loadfile_data
# Split the TLV into consecutive 240-byte blocks (char offsets, 2 per
# byte). The earlier form indexed with the block number ('i * 2'), which
# produced overlapping 1-byte-shifted copies - the card failed mid-load
# with SW 6400 (live 2026-09-16).
blocks = [loadfile_tlv[off:off + block_size * 2]
for off in range(0, len(loadfile_tlv), block_size * 2)]
for i, block in enumerate(blocks):
p1 = 0x80 if i == len(blocks) - 1 else 0x00
apdus.append('80E8%02X%02X%02X%s00' % (p1, i % 256, len(block) // 2, block))
instance = instance_aid or module_aid
params = install_params if install_params else 'C900'
if stk_params:
params += stk_params
p1_install = 0x0C if make_selectable else 0x04
ifi_data = (_lv(loadfile_aid) + _lv(module_aid) + _lv(instance) +
_lv(privileges or '00') + _lv(params) + '00')
apdus.append('80E6%02X00%02X%s00' % (p1_install, len(ifi_data) // 2, ifi_data))
return apdus
def _lv(hex_str):
"""Length-prefix a hex string (1-byte length)."""
n = len(hex_str) // 2
return '%02x%s' % (n, hex_str)
def _ber_len(n):
"""BER-TLV length encoding."""
if n < 0x80:
return '%02x' % n
elif n < 0x100:
return '81%02x' % n
else:
return '82%04x' % n
def _cap_parse(cap_hex):
"""Parse a .cap file (as hex string) and return (loadfile_aid, module_aid, loadfile_data) as hex strings.
The .cap file is a ZIP archive containing nested .cap component files.
We extract the Header (for package AID / Load File AID) and Applet component
(for applet AID / Module AID), then concatenate all components for the loadfile data.
"""
import zipfile, io, struct
cap_bytes = bytes.fromhex(cap_hex)
zf = zipfile.ZipFile(io.BytesIO(cap_bytes))
components = {}
for name in zf.namelist():
if name.lower().endswith('.cap') and not name.lower().endswith('.capx'):
key = name.split('/')[-1].removesuffix('.cap')
components[key] = zf.read(name)
zf.close()
if 'Header' not in components:
raise ValueError('.cap file missing Header component')
if 'Applet' not in components:
raise ValueError('.cap file missing Applet component')
# Header component: tag(1) size(2) magic(4) minor(1) major(1) flags(1) package(minor(1) major(1) aid(LV))
hdr = components['Header']
magic = struct.unpack('>I', hdr[3:7])[0]
if magic != 0xDECAFFED:
raise ValueError('Invalid .cap Header magic: 0x%08X (expected 0xDECAFFED)' % magic)
aid_len = hdr[12]
loadfile_aid = hdr[13:13 + aid_len].hex().upper()
# Applet component: tag(1) size(2) count(1) [aid_len(1) aid(N) install_offset(2)]*
app = components['Applet']
num_applets = app[3]
if num_applets < 1:
raise ValueError('.cap file has no applets')
off = 4
aid_len2 = app[off]
module_aid = app[off + 1:off + 1 + aid_len2].hex().upper()
# Concatenate all components for the loadfile (GP spec order)
order = ['Header', 'Directory', 'Import', 'Applet', 'Class', 'Method',
'StaticField', 'Export', 'ConstantPool', 'RefLocation', 'Descriptor']
loadfile_parts = []
for comp in order:
if comp in components:
loadfile_parts.append(components[comp])
loadfile_data = b''.join(loadfile_parts).hex().upper()
return loadfile_aid, module_aid, loadfile_data
def _build_sms_tpdu(chunk_hex, chunk_total=1, chunk_num=1, oa_number='12345', include_cpi=True):
chunk = bytes.fromhex(chunk_hex)
# TS 23.040 UDH: first octet is UDHL, then the information elements.
# TS 31.115 4.2/4.3: the OTA CPI is UDH IEIa='70' with IEIDLa='00'.
udh = b''
if chunk_total > 1:
udh = bytes([0x00, 0x03, 0x01, chunk_total, chunk_num])
if chunk_num == 1 and include_cpi:
udh += bytes([0x70, 0x00])
elif include_cpi:
udh = bytes([0x70, 0x00])
tp_ud = (bytes([len(udh)]) + udh + chunk) if udh else chunk
first_byte = 0x44 if udh and chunk_total > 1 else (0x40 if udh else 0x04)
tpdu = bytes([first_byte]) + _encode_sms_oa(oa_number) + bytes([0x7F, 0xF6]) + _encode_scts() + bytes([len(tp_ud)]) + tp_ud
return tpdu.hex()
def _send_envelope(tpdu_hex, scc, sm_sc='12345678912', submit_handler=None):
from pySim.ts_31_102 import SMSPPDownload
from pySim.cat import DeviceIdentities, Address
from osmocom.tlv import COMPR_TLV_IE
from pySim.utils import b2h
class RawTpdu(COMPR_TLV_IE, tag=0x8B):
comprehension = False
def __init__(self, data_hex):
super().__init__()
self._raw = bytes.fromhex(data_hex)
def to_bytes(self, context={}):
return self._raw
address = Address()
oa_raw = _encode_sms_oa(sm_sc)
address.from_bytes(oa_raw[1:])
dev_ids = DeviceIdentities(decoded={'source_dev_id': 'network', 'dest_dev_id': 'uicc'})
raw_tpdu = RawTpdu(tpdu_hex)
sms_dl = SMSPPDownload(children=[dev_ids, address, raw_tpdu])
env_hex = '%sc20000%02x%s' % (scc.cat_cla, len(sms_dl.to_tlv()), b2h(sms_dl.to_tlv()))
data, sw = scc._tp.send_apdu(env_hex)
if sw.startswith('61'):
get_len = int(sw[2:], 16) if len(sw) == 4 else 0x100
data, sw = scc._tp.send_apdu('00c00000%02x' % get_len)
elif sw.startswith('91'):
def _capture_sms_tpdu(raw, cmd_num, cmd_type, dev_src, dev_dst):
if submit_handler:
tpdu_hex = _find_sms_tpdu(raw)
if tpdu_hex:
ref, total, num, payload = _parse_sms_concat(bytes.fromhex(tpdu_hex))
if total is not None and num is not None:
submit_handler.sms_segments.append((ref, total, num, payload.hex()))
matching = [s for s in submit_handler.sms_segments if s[0] == ref]
if len(matching) >= total:
sorted_segs = sorted(matching, key=lambda s: s[2])
assembled = b''.join(bytes.fromhex(s[3]) for s in sorted_segs)
submit_handler.submit_tpdu_hex = assembled.hex()
sys.stderr.write('SMS concat: assembled %d segments (ref=%s)\n' % (total, ref))
else:
submit_handler.submit_tpdu_hex = tpdu_hex
_handle_proactive_chain(scc, sw, _capture_sms_tpdu)
data, sw = '', '9000'
if sw == '9000' and submit_handler and not submit_handler.submit_tpdu_hex:
sys.stderr.write('STATUS poll (PoR not captured)\n')
st_data, st_sw = _send_status(scc)
sys.stderr.write('STATUS -> %s\n' % st_sw)
if st_sw.startswith('91'):
_handle_proactive_chain(scc, st_sw, _capture_sms_tpdu)
return data, sw
# TS 03.48 / TS 102 225 SPI coding
_RC_CC_DS = {0: 'no_rc_cc_ds', 1: 'rc', 2: 'cc', 3: 'ds'}
_CNTR_REQ = {0: 'no_counter', 1: 'counter_no_replay_or_seq', 2: 'counter_must_be_higher', 3: 'counter_must_be_lower'}
_POR_REQ = {0: 'no_por', 1: 'por_required', 2: 'por_only_when_error'}
_CRYPT_ALGO = {1: 'single_des', 5: 'triple_des_cbc2', 9: 'triple_des_cbc3', 2: 'aes_cbc'}
_AUTH_ALGO = {1: 'single_des', 5: 'triple_des_cbc2', 9: 'triple_des_cbc3', 2: 'aes_cmac'}
def _spi_from_bytes(spi1, spi2):
return {
'counter': _CNTR_REQ[(spi1 >> 3) & 0x03],
'ciphering': bool(spi1 & 0x04),
'rc_cc_ds': _RC_CC_DS[spi1 & 0x03],
'por_in_submit': bool(spi2 & 0x20),
'por_shall_be_ciphered': bool(spi2 & 0x10),
'por_rc_cc_ds': _RC_CC_DS[(spi2 >> 2) & 0x03],
'por': _POR_REQ[spi2 & 0x03],
}
def _ota_keyset(spi1, spi2, kic, kid, cntr_hex, kic_key_hex, kid_key_hex):
from pySim.ota import OtaKeyset
from osmocom.utils import h2b
kic_b = int(kic, 16)
kid_b = int(kid, 16)
algo_crypt = _CRYPT_ALGO.get(kic_b & 0x0F)
algo_auth = _AUTH_ALGO.get(kid_b & 0x0F)
if algo_crypt is None:
raise ValueError('Unsupported KIc algorithm nibble %02X' % (kic_b & 0x0F))
if algo_auth is None:
raise ValueError('Unsupported KID algorithm nibble %02X' % (kid_b & 0x0F))
return OtaKeyset(algo_crypt=algo_crypt, kic_idx=kic_b >> 4, kic=h2b(kic_key_hex),
algo_auth=algo_auth, kid_idx=kid_b >> 4, kid=h2b(kid_key_hex),
cntr=int(cntr_hex, 16) if cntr_hex else 0)
def _ota_reference(spi1, spi2, kic, kid, tar_hex, cntr_hex, apdu_hex, kic_key_hex, kid_key_hex):
from pySim.ota import OtaDialectSms
from osmocom.utils import h2b, b2h
otak = _ota_keyset(spi1, spi2, kic, kid, cntr_hex, kic_key_hex, kid_key_hex)
spi = _spi_from_bytes(int(spi1, 16), int(spi2, 16))
out = OtaDialectSms().encode_cmd(otak, h2b(tar_hex), spi, h2b(apdu_hex))
if not spi['ciphering'] and spi['rc_cc_ds'] != 'no_rc_cc_ds':
# pySim drops the CPL octets from its unciphered output; re-add them
# (they are included in the RC/CC/DS calculation) per TS 31.115 4.2.
# CPL counts octets from the CHL octet to the last octet of the
# Secured Data (incl. padding); pySim's unciphered output is exactly
# that range, so the CPL value equals its length.
cpl = len(out)
out = cpl.to_bytes(2, 'big') + out
return b2h(out), spi
def _max_load_block_size(spi1, spi2, kic, kid, tar_hex, cntr_hex,
kic_key_hex, kid_key_hex, requested=240):
"""Largest LOAD block payload that still fits one SMS (TS 31.115).
pySim's SMS dialect refuses to encode a secured packet above 140 octets,
so a LOAD APDU of the default 240-byte block cannot be sent over SCP80.
Trial-encode a synthetic LOAD APDU for decreasing payload sizes (the
cipher padding makes a closed-form bound unreliable) and return the
largest one that encodes; 0 = not even a 1-byte block fits."""
cap = max(1, min(int(requested or 240), 240))
for n in range(cap, 0, -1):
apdu = '80E80000%02X%s00' % (n, '00' * n)
try:
out_hex, _ = _ota_reference(spi1, spi2, kic, kid, tar_hex, cntr_hex,
apdu, kic_key_hex, kid_key_hex)
except ValueError:
continue
if len(out_hex) // 2 <= 140:
return n
return 0
def _decode_por(spi1, spi2, kic, kid, cntr_hex, kic_key_hex, kid_key_hex, response_hex):
from pySim.ota import OtaDialectSms, CompactRemoteResp
from osmocom.utils import h2b, b2h
if not response_hex:
return None
otak = _ota_keyset(spi1, spi2, kic, kid, cntr_hex, kic_key_hex, kid_key_hex)
spi = _spi_from_bytes(int(spi1, 16), int(spi2, 16))
try:
data = h2b(response_hex)
if not data or data[0] != 0x02:
return None
res, dec = OtaDialectSms().decode_resp(otak, spi, data)
except Exception:
# any malformed/garbage PoR (non-hex, bad UDL, truncated fields,
# bad CC) is not a POR; never let decoding crash the request handler.
return None
out = {
'response_status': str(res['response_status']),
'tar': res['tar'].hex().upper(),
'cntr': res['cntr'].hex().upper(),
'pcntr': res['pcntr'],
'rpl': res['rpl'],
'rhl': res['rhl'],
'cc_rc': res['cc_rc'].hex().upper(),
'raw': response_hex,
}
# Try ExpandedRemoteResponse first (TS 102 226 §5.2.2)
if res.response_status == 'por_ok' and len(res['secured_data']):
expanded_response_data = ''
try:
from construct import Struct, Int8ub, Bytes, GreedyBytes, Optional, Array, this
ExpandedRemoteResponse = Struct(
'response_count'/Int8ub,
'responses'/Array(this.response_count, Struct(
'command_number'/Int8ub,
'status_word'/Bytes(2),
'response_data'/GreedyBytes,
'error_details'/Optional(Struct(
'error_code'/Int8ub,
'error_info'/GreedyBytes
)),
'chaining_context'/Optional(Struct(
'script_id'/Bytes(4),
'is_first'/Int8ub,
'is_last'/Int8ub,
))
))
)
expanded = ExpandedRemoteResponse.parse(res['secured_data'])
out['response_type'] = 'expanded'
out['response_count'] = expanded.response_count
out['responses'] = []
for resp in expanded.responses:
response_data = {
'command_number': resp.command_number,
'status_word': resp.status_word.hex().upper(),
'response_data': b2h(resp.response_data).upper() if resp.response_data else '',
}
if resp.error_details:
response_data['error_code'] = resp.error_details.error_code
response_data['error_info'] = b2h(resp.error_details.error_info).upper()
if resp.chaining_context:
response_data['script_id'] = resp.chaining_context.script_id.hex().upper()
response_data['is_first'] = resp.chaining_context.is_first == 0x01
response_data['is_last'] = resp.chaining_context.is_last == 0x01
out['responses'].append(response_data)
if expanded.response_count > 0 and expanded.responses[0].response_data:
expanded_response_data = b2h(expanded.responses[0].response_data).upper()
except Exception:
pass
if dec is not None:
out['response_type'] = 'compact'
# Use compact parser's last_response_data; expanded parser gives wrong results for compact format
out['decoded'] = {
'number_of_commands': dec.number_of_commands,
'last_status_word': str(dec.last_status_word),
'last_response_data': str(dec.last_response_data),
}
else:
out['response_type'] = 'none'
elif dec is not None:
out['response_type'] = 'compact'
out['decoded'] = {
'number_of_commands': dec.number_of_commands,
'last_status_word': str(dec.last_status_word),
'last_response_data': str(dec.last_response_data),
}
else:
out['response_type'] = 'none'
return out
class PoRSubmitHandler(ProactiveHandler):
"""Captures the SMS-SUBMIT TPDU from a SendShortMessage proactive command
issued by the SIM in response to PoR-in-submit (SPI2 bit 0x20).
The 91XX path in _send_envelope scans the FETCH response directly for
the SMS_TPDU child (tag 0x8B) and populates submit_tpdu_hex.
Supports concatenated SMS: when UDH contains IEI 0x00 or 0x08, segments
are accumulated and reassembled once all parts arrive."""
def __init__(self):
super().__init__()
self.submit_tpdu_hex = None
self.sms_segments = [] # [(ref, total, num, payload_hex), ...]
class _DefaultProactiveHandler(ProactiveHandler):
"""Catch-all for any proactive command not explicitly handled. Logs the
fetch and its TERMINAL RESPONSE into _PROACTIVE_LOG and answers
PROVIDE LOCAL INFORMATION (0x26) with data from the PLI dictionary,
so the card does not re-request."""
def receive_fetch_raw(self, pcmd, parsed):
cmd_num, cmd_type, dev_src, dev_dst, cmd_qual = 1, 0, 0x83, 0x81, None
entry = None
# pySim parses the FETCH response into a command-specific object
# ('parsed'); the 'pcmd' collection stays empty and is only useful as
# a fallback. Use the parsed object for both the log and the response.
cmd_obj = parsed if getattr(parsed, 'children', None) else pcmd
try:
raw = cmd_obj.to_tlv()
if raw:
cmd_num, cmd_type, dev_src, dev_dst, cmd_qual = _parse_proactive_header(raw)
entry = _log_proactive(cmd_type, raw, cmd_qual, cmd_num)
except Exception:
pass
ti_list = self.prepare_response(cmd_obj, 'performed_successfully')
if cmd_type == 0x26 and cmd_qual is not None:
pli_hex = _PLI_DATA.get(cmd_qual, '')
if pli_hex:
try:
ti_list.insert(2, _RawBerTlv(pli_hex))
except Exception:
pass
if entry:
_record_tr(entry, b''.join(x.to_tlv() for x in ti_list))
return ti_list
class _RawBerTlv(BER_TLV_IE):
"""Emits pre-encoded TLV bytes verbatim (used to inject PLI data TLVs
into the TERMINAL RESPONSE built by pySim's auto-handler)."""
def __init__(self, data_hex):
super().__init__()
self._raw = bytes.fromhex(data_hex)
def to_bytes(self, context={}):
return self._raw
def to_tlv(self):
return self._raw
_STK_DECODE = GsmOrUcs2Adapter(GreedyBytes)
_PROACTIVE_LOG = []
_PROACTIVE_SESSION_START = None
_PROACTIVE_ENTRY_ID = 0
PROACTIVE_TYPE_NAMES = {
0x03: 'POLL INTERVAL', 0x05: 'SET UP EVENT LIST',
0x13: 'SEND SHORT MESSAGE', 0x20: 'PLAY TONE',
0x21: 'DISPLAY TEXT', 0x22: 'GET INKEY', 0x23: 'GET INPUT',
0x24: 'SELECT ITEM', 0x25: 'SET UP MENU',
0x26: 'PROVIDE LOCAL INFORMATION', 0x27: 'TIMER MANAGEMENT',
0x15: 'LAUNCH BROWSER', 0x70: 'ACTIVATE',
0x40: 'OPEN CHANNEL', 0x41: 'CLOSE CHANNEL',
0x42: 'RECEIVE DATA', 0x43: 'SEND DATA', 0x44: 'GET CHANNEL STATUS',
}
PLI_QUALIFIER_NAMES = {
0x00: 'Location Information (MCC, MNC, LAC/TAC, Cell ID)',
0x01: 'IMEI',
0x02: 'Network Measurement results',
0x03: 'Date, time and time zone',
0x04: 'Language setting',
0x05: 'Reserved for GSM (Timing Advance, TS 51 111)',
0x06: 'Access Technology (single)',
0x07: 'ESN of the terminal',
0x08: 'IMEISV',
0x09: 'Search Mode',
0x0A: 'Battery charge state',
0x0B: 'MEID of the terminal',
0x0C: 'Current WSID',
0x0D: 'Broadcast Network information',
0x0E: 'Multiple Access Technologies',
0x0F: 'Location Info (multi-RAT)',
0x10: 'NMR (multi-RAT)',
0x11: 'CSG ID list + HNB name',
0x12: 'H(e)NB IP address',
0x13: 'H(e)NB surrounding macrocells',
0x14: 'Current WLAN identifier',
0x15: 'Slices information',
0x16: 'CAG information list',
0x17: 'Rejected slices information',
0x1A: 'Supported Radio Access Technologies',
}
_PLI_DATA = {q: '' for q in PLI_QUALIFIER_NAMES}
_BIP = httpota.BipTerminal()
_SCP81_LISTENER = None
# Active listener mode and target: ('dump'|'tls'|'passthru', host, port).
# passthru has no listener object - the BIP channels connect straight to the
# external platform - so the mode/target are tracked here for the status API.
_SCP81_MODE = None
_SCP81_TARGET = None
# PSK table of the TLS listener: identity -> key (memory only, never logged or
# persisted; the PWA sends it from the card presets at listener start).
# _SCP81_PSK_LEGACY keeps a single-key start (psk_hex [+ psk_identity]) so an
# API restart without psk_map/psk_hex can reuse it.
_SCP81_PSKS = {}
_SCP81_PSK_LEGACY = None
_POLL_ENABLED = False
_POLL_INTERVAL = 30
_POLL_TIMER = None
_CARD_LOCK = threading.RLock()
_CARD_CONNECTED = False
def _set_poll_interval(seconds):
global _POLL_INTERVAL
_POLL_INTERVAL = max(0, min(255, int(seconds)))
def _reset_poll_timer():
global _POLL_TIMER
if _POLL_TIMER is not None:
_POLL_TIMER.cancel()
_POLL_TIMER = None
if _POLL_ENABLED and _POLL_INTERVAL > 0:
_POLL_TIMER = threading.Timer(_POLL_INTERVAL, _do_status_poll)
_POLL_TIMER.daemon = True
_POLL_TIMER.start()
def _do_status_poll():
global _POLL_TIMER
_POLL_TIMER = None
if not _POLL_ENABLED:
return
with _CARD_LOCK:
try:
scc = getattr(_server_ref, 'scc', None) if _server_ref else None
if not scc:
return
st_data, st_sw = _send_status(scc)
sys.stderr.write('AUTO-STATUS -> %s\n' % st_sw)
if st_sw.startswith('91'):
_handle_proactive_chain(scc, st_sw)
except Exception as e:
sys.stderr.write('AUTO-STATUS error: %s\n' % e)
_handle_card_disconnect()
_reset_poll_timer()
def _poll_enable():
global _POLL_ENABLED
if _POLL_INTERVAL <= 0:
_POLL_ENABLED = False
return
_POLL_ENABLED = True
_reset_poll_timer()
_MENU_TIMEOUT = 60
_MENU_TIMER = None
def _set_menu_timeout(seconds):
global _MENU_TIMEOUT
_MENU_TIMEOUT = max(0, min(3600, int(seconds)))
def _cancel_menu_timeout():
global _MENU_TIMER
if _MENU_TIMER is not None:
_MENU_TIMER.cancel()
_MENU_TIMER = None
def _arm_menu_timeout():
"""Watchdog: a paused proactive command must always get a TERMINAL RESPONSE,
even if the user never answers. Fires 0x12 ('timeout') via the same path as
an explicit user response."""
global _MENU_TIMER
_cancel_menu_timeout()
if _MENU_TIMEOUT <= 0:
return
_MENU_TIMER = threading.Timer(_MENU_TIMEOUT, _menu_timeout_fire)
_MENU_TIMER.daemon = True
_MENU_TIMER.start()
def _menu_timeout_fire():
global _MENU_TIMER
_MENU_TIMER = None
with _CARD_LOCK:
server = _server_ref
if not server or not getattr(server, 'stk_pending', None) or not getattr(server, 'scc', None):
return
pd = server.stk_pending
sys.stderr.write('MENU-TIMEOUT: auto TR timeout (cmd=%02x type=%02x)\n' % (pd['cmd_num'], pd['cmd_type']))
try:
_menu_send_response(server, 'timeout', None)
except Exception as e:
sys.stderr.write('MENU-TIMEOUT error: %s\n' % e)
def _poll_disable():
global _POLL_ENABLED, _POLL_TIMER
_POLL_ENABLED = False
if _POLL_TIMER is not None:
_POLL_TIMER.cancel()
_POLL_TIMER = None
_server_ref = None
def _tr_data_only(tr_tlv):
"""Strip boilerplate CTLVs (Command Details, Device IDs, Result) from TR,
returning only command-specific data TLVs or empty bytes."""
skip_tags = {0x81, 0x82, 0x03, 0x83}
data = bytearray()
off = 0
while off < len(tr_tlv) - 1:
tag, tlen = tr_tlv[off], tr_tlv[off + 1]
val = tr_tlv[off + 2: off + 2 + tlen]
off += 2 + tlen
if tag not in skip_tags:
data.extend(tr_tlv[off - 2 - tlen: off])
return bytes(data)
EVENT_NAMES = {
0x00: 'MT call', 0x01: 'Call connected', 0x02: 'Call disconnected',
0x03: 'Location status', 0x04: 'User activity', 0x05: 'Idle screen available',
0x06: 'Card reader status', 0x07: 'Language selection',
0x08: 'Browser termination', 0x09: 'Data available',
0x0A: 'Channel status', 0x0B: 'Access Technology Change',
0x0C: 'Display parameters changed', 0x0D: 'Local connection',
0x0E: 'Network Search Mode Change', 0x0F: 'Browsing status',
0x10: 'Frames Information Change', 0x11: 'I-WLAN Access Status',
0x12: 'Network Rejection', 0x13: 'HCI Connectivity',
0x14: 'Change of UICC Access', 0x15: 'CSG Cell Change',
0x16: 'Contactless state request', 0x17: 'Profile Container',
0x18: 'LTE D2D Discovery Monitoring', 0x19: 'LTE D2D Communication Monitoring',
0x1A: 'LTE D2D Announcement Response', 0x1B: 'LTE D2D Revocation',
0x1C: 'LTE D2D Application Port', 0x1D: 'LTE D2D Security Recovery',
0x1E: 'Off-net Emergency Call', 0x1F: 'ECall Over IMS',
0x20: 'EARFCN Update', 0x21: 'SCEF Channel Status',
}
ACCESSTECH_NAMES = {
0: 'GSM', 1: 'GSM Compact', 2: 'TIA/EIA-533', 3: 'UTRAN',
4: 'TETRA', 5: 'TIA/EIA-95-B', 6: 'CDMA2000 1x', 7: 'CDMA2000 HRPD',
8: 'E-UTRAN', 9: 'eHRPD', 10: 'NG-RAN', 11: 'Satellite NG-RAN',
12: 'Satellite E-UTRAN',
}
PLI_QUALIFIER_SHORT = {
0x00: 'Loc', 0x01: 'IMEI', 0x02: 'NMR', 0x03: 'Time', 0x04: 'Lang',
0x05: 'TA', 0x06: 'AccTech', 0x08: 'IMEISV', 0x09: 'Search', 0x0A: 'Batt',
0x0C: 'WSID', 0x0D: 'BCInfo', 0x0E: 'MultiAT', 0x0F: 'MultiLoc',
0x10: 'MultiNMR', 0x11: 'CSG', 0x12: 'HNB-IP', 0x13: 'HNB-Macro',
0x14: 'WLAN', 0x15: 'Slices', 0x16: 'CAG', 0x17: 'RejSlice',
}
def _dec_plmn(hex6):
"""Decode 3-byte MCC/MNC nibble-swapped PLMN, e.g. '25001' from 'F50010'."""
h = re.sub(r'\s', '', hex6)[:6]
if len(h) < 6:
return '250', '01'
b1, b2, b3 = int(h[0:2], 16), int(h[2:4], 16), int(h[4:6], 16)
mcc = '%d%d%d' % (b1 & 0xF, (b1 >> 4) & 0xF, b2 & 0xF)
mnc = '%d' % (b3 & 0xF)
if (b2 >> 4) != 0xF:
mnc += '%d' % ((b2 >> 4) & 0xF)
return mcc, mnc
def _dec_imei(hex8):
"""Decode 8-byte IMEI (nibble-swapped, 15 digits)."""
h = re.sub(r'\s', '', hex8)[:16]
if len(h) < 16:
return ''
s = ''
for i in range(0, 15, 2):
b = int(h[i:i + 2], 16)
s += '%d%d' % (b & 0xF, (b >> 4) & 0xF)
return s[:15]
def _cmd_tlv(tlvs, tag):
"""Fetch a command TLV, tolerating both the plain tag and its
comprehension-required variant (e.g. 0x24 and 0xA4, TS 101 220 7.1.1)."""
return tlvs.get(tag) or tlvs.get(tag | 0x80) or b''
def _tlv_map(data):
"""Top-level COMPREHENSION-TLV map {tag: value} of a payload without a
D0 wrapper (e.g. the command-specific TLVs of a TERMINAL RESPONSE)."""
out = {}
off = 0
while off + 1 < len(data):
tag, tlen = data[off], data[off + 1]
out.setdefault(tag, data[off + 2: off + 2 + tlen])
off += 2 + tlen
return out
def _bcd_swap(b):
"""Semi-octet BCD digit pair (TS 123 040 TP-SCT): low nibble first."""
return (b & 0x0F) * 10 + ((b >> 4) & 0x0F)
def _hms_bcd(seconds):
"""Encode seconds as hour/minute/second semi-octet BCD (TS 123 040)."""
h, rem = divmod(int(seconds), 3600)
m, s = divmod(rem, 60)
return bytes([((h % 10) << 4) | (h // 10),
((m % 10) << 4) | (m // 10),
((s % 10) << 4) | (s // 10)])
_TIMER_ACTIONS = {0x00: 'Start', 0x01: 'Deactivate', 0x02: 'Get current value'}
# SMS TPDU type (TS 23.040 TP-MTI, bits 1-2 of the first octet).
_SMS_MTI = {0: 'SMS-DELIVER', 1: 'SMS-SUBMIT', 2: 'SMS-COMMAND', 3: 'Reserved'}
def _unpack_septets(data, count):
"""Unpack `count` 7-bit septets from the packed GSM default alphabet
(TS 23.038): septet n lives in bits 7n..7n+6 of the octet string."""
out = bytearray()
acc, bits = 0, 0
for b in data:
acc |= b << bits
bits += 8
while bits >= 7 and len(out) < count:
out.append(acc & 0x7F)
acc >>= 7
bits -= 7
return bytes(out)
def _parse_udh(ud):
"""Parse an SMS user-data header (TS 23.040 9.2.3.24).
Returns (fields, octets, septets): the decoded IEs, the UDH length in
octets and the number of septets it occupies in a 7-bit packed UD."""
if len(ud) < 2:
return [], 0, 0
udhl = ud[0]
if udhl < 1 or 1 + udhl > len(ud):
return [], 0, 0
out = []
off = 1
while off + 2 <= 1 + udhl:
iei, ielen = ud[off], ud[off + 1]
val = ud[off + 2: off + 2 + ielen]
if iei == 0x00 and ielen == 3:
out.append({'label': 'Concat (8-bit ref)',
'value': '%d, part %d/%d' % (val[0], val[1], val[2])})
elif iei == 0x08 and ielen == 4:
out.append({'label': 'Concat (16-bit ref)',
'value': '%d, part %d/%d' % (int.from_bytes(val[:2], 'big'),
val[2], val[3])})
else:
out.append({'label': 'UDH IE 0x%02X' % iei, 'value': val.hex().upper()})
off += 2 + ielen
octets = 1 + udhl
return out, octets, (octets * 8 + 6) // 7
def _decode_sms_ud(pid, dcs, ud, udhi, udl):
"""Decode the TP-UD of an SMS TPDU: the UDH, a secured packet (PID 0x7F,
TS 31.115) or the text message body for a text DCS (TS 23.038)."""
out = []
header_octets, header_septets = 0, 0
if udhi:
fields, header_octets, header_septets = _parse_udh(ud)
out.extend(fields)
data = ud[header_octets:]
if pid == 0x7F:
# SIM data download: the user data is a secured packet (TS 31.115).
out.append({'label': 'Secured packet (TS 31.115)',
'value': '%d bytes: %s' % (len(data), data.hex().upper())})
return out
cls = dcs & 0x0C
try:
if cls == 0x00:
# GSM 7-bit default alphabet, packed septets; the UDH (if any)
# occupies whole septets at the start of the packed data.
n = udl if udl else (len(ud) * 8) // 7
septets = _unpack_septets(ud[: (n * 7 + 7) // 8], n)[header_septets:]
text = codecs.decode(septets, 'gsm03.38')
elif cls == 0x08:
text = codecs.decode(data, 'utf_16_be')
elif cls == 0x04:
text = data.decode('latin-1', errors='replace')
else:
out.append({'label': 'User data',
'value': '%d bytes: %s' % (len(data), data.hex().upper())})
return out
out.append({'label': 'Text', 'value': text})
except Exception:
out.append({'label': 'User data',
'value': '%d bytes: %s' % (len(data), data.hex().upper())})
return out
def _decode_send_sm(raw):
"""Decode a SEND SHORT MESSAGE command (TS 102 223 6.4.10): alpha
identifier, address and the 3GPP-SMS TPDU with its user data."""
out = []
tlvs = httpota.proactive_tlvs(raw)
alpha = _cmd_tlv(tlvs, 0x05)
if alpha:
try:
out.append({'label': 'Alpha', 'value': _STK_DECODE._decode(alpha, {}, 'stk')})
except Exception:
pass
addr = _cmd_tlv(tlvs, 0x06)
if addr:
try:
from pySim.cat import Address
a = Address().from_bytes(addr)
num = str(a.get('call_number') or '').rstrip('fF')
ton = (a.get('ton_npi') or {}).get('type_of_number')
out.append({'label': 'Address',
'value': num + (' (%s)' % ton if ton else '')})
except Exception:
out.append({'label': 'Address', 'value': addr.hex().upper()})
tpdu = _cmd_tlv(tlvs, 0x0B)
if not tpdu:
return out
out.append({'label': 'SMS TPDU', 'value': tpdu.hex().upper()})
try:
mti = tpdu[0] & 0x03
out.append({'label': 'Type', 'value': _SMS_MTI.get(mti, 'Reserved')})
if mti == 1:
from pySim.sms import SMS_SUBMIT
s = SMS_SUBMIT.from_bytes(tpdu)
out.append({'label': 'TP-MR', 'value': str(s.tp_mr)})
if s.tp_da is not None:
num = str(getattr(s.tp_da, 'digits', '')).rstrip('fF')
out.append({'label': 'TP-DA', 'value': num})
out.append({'label': 'TP-PID', 'value': '0x%02X%s' % (
s.tp_pid, ' (SIM data download)' if s.tp_pid == 0x7F else '')})
out.append({'label': 'TP-DCS', 'value': '0x%02X' % s.tp_dcs})
if s.tp_vp is not None:
out.append({'label': 'TP-VP', 'value': bytes(s.tp_vp).hex().upper()})
out.append({'label': 'TP-UDL', 'value': str(s.tp_udl)})
out.extend(_decode_sms_ud(s.tp_pid, s.tp_dcs, bytes(s.tp_ud),
bool(s.tp_udhi), s.tp_udl))
except Exception:
# Malformed TPDU: keep the raw hex line above, never break the log.
pass
return out
def _decode_cmd(cmd_type, raw, qualifier):
"""Decode a fetched proactive command into [{label, value}] pairs."""
if not raw:
return []
if cmd_type == 0x03:
idx = raw.find(b'\x84\x02\x01')
if idx >= 0 and idx + 3 < len(raw):
return [{'label': 'Interval', 'value': '%d s' % raw[idx + 3]}]
return []
if cmd_type == 0x05:
for tag in (0x99, 0x19):
idx = raw.find(bytes([tag]))
if idx >= 0 and idx + 1 < len(raw):
tlen = raw[idx + 1]
names = [EVENT_NAMES.get(b, 'Event 0x%02X' % b) for b in raw[idx + 2: idx + 2 + tlen]]
return [{'label': 'Events', 'value': ', '.join(names)}]
return []
if cmd_type == 0x13:
return _decode_send_sm(raw)
if cmd_type == 0x21:
text = _parse_display_text(raw)
return [{'label': 'Text', 'value': text}] if text else []
if cmd_type == 0x24:
items = _parse_select_item(raw)
if items:
return [{'label': 'Items', 'value': ', '.join('%s. %s' % (it['id'], it['text']) for it in items)}]
return []
if cmd_type == 0x25:
items = _parse_setup_menu_items(raw)
if items:
return [{'label': 'Items', 'value': ', '.join('%s. %s' % (it['id'], it['text']) for it in items)}]
return []
if cmd_type in (0x40, 0x42, 0x43):
return _decode_bip_cmd(cmd_type, raw)
if cmd_type == 0x26 and qualifier is not None:
name = PLI_QUALIFIER_NAMES.get(qualifier, 'Unknown')
return [{'label': 'Qualifier', 'value': '%s (0x%02X)' % (name, qualifier)}]
if cmd_type == 0x27:
out = []
if qualifier is not None:
action = _TIMER_ACTIONS.get(qualifier & 0x03)
out.append({'label': 'Action',
'value': action or 'Reserved (0x%02X)' % qualifier})
tlvs = httpota.proactive_tlvs(raw)
timer = _cmd_tlv(tlvs, 0x24)
if timer:
tv = timer[0]
out.append({'label': 'Timer',
'value': str(tv) if 1 <= tv <= 8 else 'Invalid (0x%02X)' % tv})
value = _cmd_tlv(tlvs, 0x25)
if len(value) >= 3:
out.append({'label': 'Value', 'value': '%02d:%02d:%02d' % (
_bcd_swap(value[0]), _bcd_swap(value[1]), _bcd_swap(value[2]))})
return out
return [{'label': 'Data', 'value': raw.hex()}]
def _decode_tr(type_hex, qual_hex, tr_hex):
"""Decode the command-specific payload of a TERMINAL RESPONSE into
[{label, value}] pairs (empty list when the TR carried no data)."""
if not tr_hex:
return []
h = re.sub(r'\s', '', tr_hex)
try:
cmd_type = int(type_hex, 16) if type_hex else None
except ValueError:
return [{'label': 'Data', 'value': h}]
if cmd_type == 0x03 and len(h) >= 8 and h[0:2] == '84':
return [{'label': 'Interval', 'value': '%d s' % int(h[6:8], 16)}]
if cmd_type == 0x27:
tlvs = _tlv_map(bytes.fromhex(h))
out = []
tid = _cmd_tlv(tlvs, 0x24)
if tid:
out.append({'label': 'Timer', 'value': str(tid[0])})
val = _cmd_tlv(tlvs, 0x25)
if len(val) >= 3:
out.append({'label': 'Remaining', 'value': '%02d:%02d:%02d' % (
_bcd_swap(val[0]), _bcd_swap(val[1]), _bcd_swap(val[2]))})
return out or [{'label': 'Data', 'value': h}]
if cmd_type == 0x26 and qual_hex:
try:
qual = int(qual_hex, 16)
except ValueError:
qual = None
if qual in (0x00, 0x01, 0x03, 0x04, 0x05, 0x06, 0x08, 0x09, 0x0A, 0x0E):
v = h[4:] if len(h) >= 4 else ''
if qual == 0x00 and len(v) >= 10:
mcc, mnc = _dec_plmn(v[:6])
return [{'label': 'MCC', 'value': mcc}, {'label': 'MNC', 'value': mnc},
{'label': 'LAC/TAC', 'value': v[6:10].upper()}]
if qual == 0x01 and len(v) >= 16:
return [{'label': 'IMEI', 'value': _dec_imei(v[:16])}]
if qual == 0x03 and len(v) >= 14:
yr = 2000 + int(v[0:2]) if int(v[0:2]) < 70 else 1900 + int(v[0:2])
mo, dy = int(v[2:4]), int(v[4:6])
hh, mm, ss = int(v[6:8]), int(v[8:10]), int(v[10:12])
tz = int(v[12:14], 16)
tz_sign = '-' if tz & 0x80 else '+'
tz_q = (tz & 0x3F) or 0
return [{'label': 'Date', 'value': '%04d-%02d-%02d' % (yr, mo, dy)},
{'label': 'Time', 'value': '%02d:%02d:%02d' % (hh, mm, ss)},
{'label': 'TZ offset', 'value': '%s%02d:%02d' % (tz_sign, tz_q // 4, (tz_q % 4) * 15)}]
if qual == 0x04 and len(v) >= 4:
try:
lang = bytes.fromhex(v[:4]).decode('ascii')
except Exception:
lang = v[:4]
return [{'label': 'Language', 'value': lang}]
if qual == 0x05 and len(v) >= 4:
return [{'label': 'ME Status', 'value': str(int(v[0:2], 16))},
{'label': 'Timing Advance', 'value': str(int(v[2:4], 16))}]
if qual == 0x06 and len(v) >= 2:
tech = int(v[0:2], 16)
return [{'label': 'Access Technology',
'value': '%s (%d)' % (ACCESSTECH_NAMES.get(tech, 'Unknown'), tech)}]
if qual == 0x08 and len(v) >= 16:
return [{'label': 'IMEISV', 'value': _dec_imei(v[:16]) + v[14:16].upper()}]
if qual == 0x09 and len(v) >= 2:
mode = int(v[0:2], 16)
return [{'label': 'Search Mode', 'value': 'Manual' if mode == 1 else ('Automatic' if mode == 0 else str(mode))}]
if qual == 0x0A and len(v) >= 2:
return [{'label': 'Charge state (%)', 'value': str(int(v[0:2], 16))}]
if qual == 0x0E:
techs = [int(v[i:i + 2], 16) for i in range(0, len(v), 2)]
return [{'label': 'Access Technologies',
'value': ', '.join(ACCESSTECH_NAMES.get(t, 'Unknown') for t in techs)}]
return [{'label': 'Data', 'value': h}]
return [{'label': 'Data', 'value': h}]
def _bip_channel_id(dev_dst):
return (dev_dst & 0x07) if 0x21 <= dev_dst <= 0x27 else None
def _bip_tr(cmd_num, cmd_type, cmd_qual, dev_src, dev_dst, result=0x00, info=None, extra=b''):
"""TERMINAL RESPONSE payload for a BIP command.
Tags follow the captured real-terminal traces (comprehension TLVs 01/02/03)
and the result precedes the optional Channel status / data TLVs.
"""
tr = bytes([0x01, 0x03, cmd_num & 0xFF, cmd_type & 0xFF, (cmd_qual if cmd_qual is not None else 0) & 0xFF,
0x02, 0x02, 0x82, 0x81])
if info is None:
tr += bytes([0x03, 0x01, result & 0xFF])
else:
tr += bytes([0x03, 0x02, result & 0xFF, info & 0xFF])
return tr + extra
def _decode_bip_cmd(cmd_type, raw):
tlvs = httpota.proactive_tlvs(raw)
out = []
dev = _cmd_tlv(tlvs, 0x02)
if len(dev) >= 2 and 0x21 <= dev[1] <= 0x27:
out.append({'label': 'Channel', 'value': str(dev[1] & 0x07)})
if cmd_type == 0x40:
bearer = _cmd_tlv(tlvs, httpota.TAG_BEARER)
if bearer:
out.append({'label': 'Bearer', 'value': '0x%02X' % bearer[0]})
bs = _cmd_tlv(tlvs, httpota.TAG_BUFFER_SIZE)
if len(bs) >= 2:
out.append({'label': 'Buffer size', 'value': str(int.from_bytes(bs[:2], 'big'))})
naa = _cmd_tlv(tlvs, httpota.TAG_NAA)
if naa:
out.append({'label': 'APN', 'value': naa[1:].decode('ascii', 'replace')})
addr = httpota.parse_other_address(_cmd_tlv(tlvs, httpota.TAG_OTHER_ADDRESS))
if addr:
out.append({'label': 'Destination', 'value': addr})
proto, port = httpota.parse_transport_level(_cmd_tlv(tlvs, httpota.TAG_TRANSPORT_LEVEL))
if port is not None:
out.append({'label': 'Transport', 'value': '%s port %d' % ({0x02: 'TCP client'}.get(proto, 'proto 0x%02X' % (proto or 0)), port)})
elif cmd_type == 0x42:
req = _cmd_tlv(tlvs, httpota.TAG_CHANNEL_DATA_LENGTH)
if req:
out.append({'label': 'Requested bytes', 'value': str(req[0])})
elif cmd_type == 0x43:
data = _cmd_tlv(tlvs, httpota.TAG_CHANNEL_DATA)
out.append({'label': 'Data bytes', 'value': str(len(data))})
if data:
out.append({'label': 'Data', 'value': data.hex()[:120]})
return out
def _handle_bip_command(scc, cmd_num, cmd_type, cmd_qual, raw, dev_src, dev_dst):
"""Handle a BIP proactive command. Returns TR payload bytes, or None for the generic path."""
tlvs = httpota.proactive_tlvs(raw)
channel = _bip_channel_id(dev_dst)
if cmd_type == 0x40:
bs = _cmd_tlv(tlvs, httpota.TAG_BUFFER_SIZE) or b'\x02\x00'
buffer_size = int.from_bytes(bs[:2], 'big') if len(bs) >= 2 else 0x0200
bearer = _cmd_tlv(tlvs, httpota.TAG_BEARER) or b'\x03'
extra = bytes([httpota.TAG_BEARER, len(bearer)]) + bearer
extra += bytes([httpota.TAG_BUFFER_SIZE, 0x02]) + buffer_size.to_bytes(2, 'big')
if not _BIP.enabled:
_BIP.log('open-unavailable', reason='BIP not enabled')
return _bip_tr(cmd_num, cmd_type, cmd_qual, dev_src, dev_dst, 0x3A, 0x00, extra)
addr = httpota.parse_other_address(_cmd_tlv(tlvs, httpota.TAG_OTHER_ADDRESS))
proto, port = httpota.parse_transport_level(_cmd_tlv(tlvs, httpota.TAG_TRANSPORT_LEVEL))
if not addr or port is None:
# Emulation is deliberately permissive: the APN, destination and
# transport are informational, the channel always goes to the
# configured local target (the live card emits truncated/empty
# destination TLVs - see the AGENTS.md HTTP OTA notes).
_BIP.log('open-relaxed', address=addr, port=port,
note='destination/transport not fully specified')
cid, err = _BIP.open(addr or '-', port or 0, buffer_size)
if cid is None:
return _bip_tr(cmd_num, cmd_type, cmd_qual, dev_src, dev_dst, 0x3A, 0x00, extra)
if cmd_qual and (cmd_qual & 0x04):
# Background mode: the terminal shall inform the UICC that the
# link was established (TS 102 223 7.5.11).
_BIP._queue_link_status(cid, status=0x80 | (cid & 0x07), info=0x00)
status = bytes([httpota.TAG_CHANNEL_STATUS, 0x02, 0x80 | (cid & 0x07), 0x00])
return _bip_tr(cmd_num, cmd_type, cmd_qual, dev_src, dev_dst, 0x00, None, status + extra)
if cmd_type == 0x43:
data = _cmd_tlv(tlvs, httpota.TAG_CHANNEL_DATA)
if channel is None or not _BIP.send(channel, data):
return _bip_tr(cmd_num, cmd_type, cmd_qual, dev_src, dev_dst, 0x3A, 0x00)
length = _BIP.send_capacity(channel)
return _bip_tr(cmd_num, cmd_type, cmd_qual, dev_src, dev_dst, 0x00, None,
bytes([httpota.TAG_CHANNEL_DATA_LENGTH, 0x01, length & 0xFF]))
if cmd_type == 0x42:
req = _cmd_tlv(tlvs, httpota.TAG_CHANNEL_DATA_LENGTH) or b'\x00'
n = req[0] if req else 0
if channel is None:
return _bip_tr(cmd_num, cmd_type, cmd_qual, dev_src, dev_dst, 0x3A, 0x00)
data = _BIP.receive(channel, n)
if data is None:
return _bip_tr(cmd_num, cmd_type, cmd_qual, dev_src, dev_dst, 0x3A, 0x00)
remaining = _BIP.available(channel)
# The channel data TLV length is BER-encoded: a single byte only up
# to 127, then the 0x81 long form (the reference terminal traces use
# `36 81 ed` for a 237-byte chunk). With a raw length byte >0x7F the
# card reads a malformed TLV and the record bytes never reach its
# TLS layer (it fetches, accepts, and never processes the response).
extra = b''
if data:
if len(data) <= 0x7F:
extra = bytes([httpota.TAG_CHANNEL_DATA, len(data)]) + data
else:
extra = bytes([httpota.TAG_CHANNEL_DATA, 0x81, len(data)]) + data
extra += bytes([httpota.TAG_CHANNEL_DATA_LENGTH, 0x01, 0xFF if remaining > 0xFF else remaining])
return _bip_tr(cmd_num, cmd_type, cmd_qual, dev_src, dev_dst, 0x00, None, extra)
if cmd_type == 0x41:
if channel is None or not _BIP.close(channel):
return _bip_tr(cmd_num, cmd_type, cmd_qual, dev_src, dev_dst, 0x3A, 0x00)
return _bip_tr(cmd_num, cmd_type, cmd_qual, dev_src, dev_dst, 0x00)
if cmd_type == 0x44:
extra = b''
for cid in sorted(_BIP.channels):
extra += bytes([httpota.TAG_CHANNEL_STATUS, 0x02, 0x80 | (cid & 0x07), 0x00])
return _bip_tr(cmd_num, cmd_type, cmd_qual, dev_src, dev_dst, 0x00, None, extra)
return None
def _scp81_listener_status():
if not _SCP81_LISTENER:
if _SCP81_MODE == 'passthru' and _SCP81_TARGET:
return {'mode': 'passthru', 'host': _SCP81_TARGET[0],
'port': _SCP81_TARGET[1],
'target': '%s:%d' % _SCP81_TARGET}
return None
if isinstance(_SCP81_LISTENER, scp81.PskTlsServer):
return {'mode': 'tls', 'host': _SCP81_LISTENER.host, 'port': _SCP81_LISTENER.port,
'psk_identities': _SCP81_LISTENER.psk_identities,
'psk_wildcard': _SCP81_LISTENER.wildcard_psk is not None,
'identity_seen': _SCP81_LISTENER.identity_seen,
'identity_matched': _SCP81_LISTENER.identity_matched,
'chunked': _SCP81_LISTENER.chunked,
'chunk_size': _SCP81_LISTENER.chunk_size,
'keep_alive': _SCP81_LISTENER.keep_alive,
'compact_headers': _SCP81_LISTENER.compact_headers,
'tls_version': _SCP81_LISTENER.tls_version,
'cipher': _SCP81_LISTENER.cipher}
return {'mode': 'dump', 'host': _SCP81_LISTENER.host, 'port': _SCP81_LISTENER.port}
def _scp81_wait_drained(peer):
"""Wait until the BIP channel for this TLS connection has delivered its
buffered bytes to the card (matched by the terminal's ephemeral port), so
a connection close does not truncate the response fetch."""
if not peer or len(peer) < 2:
return
port = peer[1]
deadline = time.time() + 5.0
seen_data = False
while time.time() < deadline:
ch = None
for c in list(_BIP.channels.values()):
try:
if c.sock.getsockname()[1] == port:
ch = c
break
except OSError:
continue
if ch is None:
return
if ch.rx:
# Channel pump has picked up the response; wait for the card.
seen_data = True
elif seen_data:
return
time.sleep(0.05)
def _bip_data_available(ch):
"""Monitor-thread callback: tell the card there is server data to fetch.
TS 102 223 7.5.10 - ENVELOPE (Event Download - Data available) carries the
Channel status and the number of bytes waiting; the card then issues
RECEIVE DATA. Returns True when the event was sent (the caller then marks
the bytes as notified)."""
server = _server_ref
if not server or not _CARD_CONNECTED or ch.peer_closed:
return False
ev_list = getattr(server, 'event_list', None) or []
if 0x09 not in ev_list or not ch.rx:
return False
with _CARD_LOCK:
server = _server_ref
if not server or not _CARD_CONNECTED or not getattr(server, 'scc', None):
return False
if _PROACTIVE_BUSY or getattr(server, 'stk_pending', None):
return False
length = min(len(ch.rx), 0xFF)
tlv = bytes([0xB8, 0x02, 0x80 | (ch.id & 0x07), 0x00,
0xB7, 0x01, length])
try:
_send_event_download(server.scc, 0x09, tlv)
except Exception as e:
_BIP.log('data-available-skip', channel=ch.id, reason=str(e))
return False
_BIP.log('data-available', channel=ch.id, length=length)
return True
# ---- SCP81 command scripting (GP RAM over HTTP, TS 102 226 5.2) -----------
# The administration server answers the card's POST with one C-APDU per
# request (Command Scripting template 'AE 80 22 <len> <apdu> 00 00',
# indefinite length as recommended for RAM over HTTPS) and reads the R-APDU
# from the next POST's Response Scripting template ('AB'/'AF', with '80'
# executed-count and '23' R-APDU TLVs whose last two bytes are SW1 SW2).
# The command script served to the card, set by the PWA at listener start (an
# explicit APDU list) or via /api/scp81/queue. The server is agnostic to what
# the APDUs do: it serves them one per administration POST and tracks
# execution so a resumed session sends only the leftover APDUs.
# _SCP81_SCRIPT_BASE the configured APDU list (never mutated)
# _SCP81_SCRIPT_NEXT index in BASE of the next APDU to send
# _SCP81_SCRIPT_DONE BASE indices the card reported (executed, any result)
# _SCP81_SCRIPT_PENDING the APDU sent in the previous POST, waiting for the
# card's X-Admin-Script-Status report (None = none); a
# session that dies before the report resends it
# _SCP81_SCRIPT_RESULTS one entry per reported APDU
# {index, pos, page, apdu, rapdu, sw}
# _SCP81_SCRIPT_PAGE_QUEUE continuation pages auto-inserted for truncated
# GET STATUS listings (sent before BASE[NEXT])
_SCP81_SCRIPT_BASE = []
_SCP81_SCRIPT_NEXT = 0
_SCP81_SCRIPT_DONE = set()
_SCP81_SCRIPT_PENDING = None
_SCP81_SCRIPT_RESULTS = []
_SCP81_SCRIPT_PAGE_QUEUE = []
_SCP81_SCRIPT_SENT_NO = 0
_SCP81_PAGES = 0
SCP81_MAX_PAGES = 24
# What the queued script is ('none', 'custom' or the name the PWA sent).
_SCP81_SCRIPT_KIND = 'none'
def _scp81_restart_run():
"""Start a new run over the configured script (fresh dialog): clear the
execution marks, the continuation pages and the results."""
global _SCP81_SCRIPT_NEXT, _SCP81_SCRIPT_DONE, _SCP81_SCRIPT_PENDING
global _SCP81_SCRIPT_RESULTS, _SCP81_SCRIPT_PAGE_QUEUE, _SCP81_PAGES
global _SCP81_SCRIPT_SENT_NO
_SCP81_SCRIPT_NEXT = 0
_SCP81_SCRIPT_DONE = set()
_SCP81_SCRIPT_PENDING = None
_SCP81_SCRIPT_RESULTS = []
_SCP81_SCRIPT_PAGE_QUEUE = []
_SCP81_SCRIPT_SENT_NO = 0
_SCP81_PAGES = 0
def _scp81_script_mid_run():
"""True while a run has started and not finished (queue replaces it only
with force)."""
return (0 < _SCP81_SCRIPT_NEXT < len(_SCP81_SCRIPT_BASE)
or _SCP81_SCRIPT_PENDING is not None
or bool(_SCP81_SCRIPT_PAGE_QUEUE))
def _scp81_reset_script(script, kind):
"""Install a new APDU script and clear all execution progress."""
global _SCP81_SCRIPT_BASE, _SCP81_SCRIPT_KIND
_SCP81_SCRIPT_BASE = [re.sub(r'\s', '', a).upper() for a in script if a]
_SCP81_SCRIPT_KIND = kind
_scp81_restart_run()
_BIP.log('script-queued', script_kind=kind, apdus=len(_SCP81_SCRIPT_BASE))
def _scp81_queue_script(apdus, kind='custom', force=False):
"""Replace the SCP81 command script with a new APDU list. Refuses while
a script is mid-run unless forced; the list runs on the card's next POST."""
if not force and _scp81_script_mid_run():
return {'queued': False, 'reason': 'script in progress',
'next': _SCP81_SCRIPT_NEXT, 'of': len(_SCP81_SCRIPT_BASE)}
_scp81_reset_script(apdus, kind)
return {'queued': True, 'apdus': len(_SCP81_SCRIPT_BASE)}
_SCP81_SCRIPT_TEMPLATE = 'indefinite'
_SCP81_SCRIPT_CR_TAG = False
# None = short per-command Next-URI ('/N'); '' = omit the header (spec: the
# card executes the script, sends no response string and closes the session).
_SCP81_NEXT_URI = None
# Optional X-Admin-Targeted-Application header (spec syntax //aid/<RID>/<PIX>).
# When it names an application that does not exist on the card, the SD answers
# with X-Admin-Script-Status: unknown-application instead of executing.
_SCP81_TARGETED_APP = None
# Emit Apache-style responses (Date/Server/X-Powered-By, Content-Length before
# Content-Type) exactly like the reference admin servers.
_SCP81_APACHE_HEADERS = False
# The listener's chunked flag (mirrored here for the response headers: a
# chunked response must not carry Content-Length - invalid HTTP, and the
# reference sends Transfer-Encoding before Content-Type).
_SCP81_CHUNKED = False
# Send automatic Channel status (link dropped) events to the card. Suppress
# while testing flows where the terminal closes the connection on purpose:
# the card must drain the buffered response and resume on a new connection.
_SCP81_LINK_EVENTS = True
def _ber_len_bytes(n):
"""BER-TLV length as bytes (short form up to 127, then 0x81/0x82)."""
if n < 0x80:
return bytes([n])
if n < 0x100:
return bytes([0x81, n])
return bytes([0x82, n >> 8, n & 0xFF])
def _scp81_command_body(apdu_hex, definite=False, cr_tag=False):
"""Command Scripting template with one C-APDU TLV: the indefinite-length
variant ('AE 80 22 <len> <apdu> 00 00', recommended for RAM over HTTPS) or
the definite-length one ('AA <len> 22 <len> <apdu>'). The C-APDU TLV tag
is '22' per TS 101 220 (CR flag 0); some cards expect the CR-set 'A2'
instead, so it is configurable. Both lengths are BER-encoded: a raw byte
above 0x7F is read as a long-form marker by the card, which garbles the
script (the 245-byte LOAD commands of a RAM install, live 2026-09-16)."""
apdu = bytes.fromhex(re.sub(r'\s', '', apdu_hex))
cmd_tlv = bytes([0xA2 if cr_tag else 0x22]) + _ber_len_bytes(len(apdu)) + apdu
if definite:
return bytes([0xAA]) + _ber_len_bytes(len(cmd_tlv)) + cmd_tlv
return bytes([0xAE, 0x80]) + cmd_tlv + b'\x00\x00'
def _scp81_parse_response(body):
"""Parse a Response Scripting template (TS 102 226 5.2.2, definite 'AB'
or indefinite 'AF'); returns (executed_count, [(rapdu, sw_hex), ...])."""
if not body:
return 0, []
if body[0] == 0xAF and len(body) >= 2 and body[1] == 0x80:
content = body[2:-2] if body.endswith(b'\x00\x00') else body[2:]
elif body[0] == 0xAB:
ln, off = httpota.ber_len_read(body, 1)
content = body[off:off + ln]
else:
content = body
count, out = 0, []
off = 0
while off < len(content):
tag = content[off]
# BER lengths: an R-APDU TLV above 127 bytes is `23 81 FC ...`; a raw
# byte >0x7F used as a length silently truncated every listing page
# to 127 bytes (live 2026-09-16), hiding later registry entries.
tlen, voff = httpota.ber_len_read(content, off + 1)
val = content[voff:voff + tlen]
if len(val) < tlen:
break
off = voff + tlen
if tag == 0x80:
count = int.from_bytes(val, 'big') if val else 0
elif tag == 0x23 and len(val) >= 2:
out.append((val[:-2], val[-2:].hex().upper()))
return count, out
def _scp81_decode_memory(rapdu):
"""GET DATA FF21 value: 81 applet count, 82 free NV (3 B), 83 free volatile."""
if len(rapdu) < 5 or rapdu[0] != 0xFF or rapdu[1] != 0x21:
return None
content = rapdu[3:3 + rapdu[2]]
out = {}
off = 0
while off + 1 < len(content):
tag, tlen = content[off], content[off + 1]
val = content[off + 2:off + 2 + tlen]
off += 2 + tlen
if tag == 0x81:
out['applets'] = int.from_bytes(val, 'big')
elif tag == 0x82:
out['free_nv'] = int.from_bytes(val, 'big')
elif tag == 0x83:
out['free_volatile'] = int.from_bytes(val, 'big')
return out or None
def _scp81_continuation(apdu):
"""Continuation APDU for a truncated GET STATUS page, or None.
GET STATUS P2.b1 distinguishes first/all (0) from the *next* batch (1)
of the matches for the SAME search criteria; the pagination state lives
in the card, so the continuation is the same command with P2.b1 set.
Using a changed search criterion (the last returned AID) was rejected
with SW 6A80 - the criterion is a match filter, not a position."""
u = apdu.upper()
if not u.startswith('80F2') or len(u) < 8:
return None
p2 = int(u[6:8], 16) | 0x01
return '%s%02X%s' % (u[:6], p2, u[8:])
def _scp81_script_state():
"""State of the configured command script for `GET /api/scp81/script`.
Progress counts only the configured APDUs (`total`/`done`); the C-APDU
awaiting the card's report is reported as `pending` ({index, pos, page,
apdu} or null) and the auto-inserted listing continuation pages as
`pages`/`pages_queued`, so a run whose script APDUs are all executed is
not mistaken for 'still pending' while a page is in flight."""
pending = None
if _SCP81_SCRIPT_PENDING is not None:
p = _SCP81_SCRIPT_PENDING
pending = {'index': p['index'], 'pos': p.get('pos'),
'page': bool(p.get('page')), 'apdu': p['apdu']}
return {'script': list(_SCP81_SCRIPT_BASE),
'next': _SCP81_SCRIPT_NEXT,
'total': len(_SCP81_SCRIPT_BASE),
'done': sorted(_SCP81_SCRIPT_DONE),
'pending': pending,
'pages': _SCP81_PAGES,
'pages_queued': len(_SCP81_SCRIPT_PAGE_QUEUE),
'complete': (len(_SCP81_SCRIPT_DONE) >= len(_SCP81_SCRIPT_BASE)
and _SCP81_SCRIPT_PENDING is None
and not _SCP81_SCRIPT_PAGE_QUEUE),
'kind': _SCP81_SCRIPT_KIND,
'template': _SCP81_SCRIPT_TEMPLATE,
'cr_tag': _SCP81_SCRIPT_CR_TAG,
'results': _SCP81_SCRIPT_RESULTS}
def _scp81_script_responder(method, target, headers, body):
"""Remote Administration Server side of the administration session: send
the next scripted C-APDU or close the session (TS 102 226 / GP 4.4.2).
Execution tracking: an APDU counts as executed only when the card reports
it in the next POST (X-Admin-Script-Status, with the Response Scripting
template on success). A session that dies before the report leaves the
APDU pending: a resumed dialog (X-Admin-Resume) resends it, while a POST
without that header is a fresh dialog where the script runs from the
start (so a completed script runs again on a new trigger)."""
global _SCP81_SCRIPT_NEXT, _SCP81_SCRIPT_DONE, _SCP81_SCRIPT_PENDING
global _SCP81_SCRIPT_RESULTS, _SCP81_SCRIPT_PAGE_QUEUE, _SCP81_PAGES
global _SCP81_SCRIPT_SENT_NO
status = headers.get('x-admin-script-status')
resume = headers.get('x-admin-resume')
pending = _SCP81_SCRIPT_PENDING
if pending is not None:
_SCP81_SCRIPT_PENDING = None
index = pending['index']
if status is not None:
# The card reports the outcome of the pending C-APDU.
if status != 'ok':
_BIP.log('script-status', index=index, status=status)
else:
count, rapdus = _scp81_parse_response(body)
for rapdu, sw in rapdus:
_BIP.log('script-rapdu', index=index, sw=sw, bytes=len(rapdu),
hex=rapdu.hex().upper()[:2000])
_SCP81_SCRIPT_RESULTS.append(
{'index': index, 'pos': pending.get('pos'),
'page': bool(pending.get('page')), 'sw': sw,
'apdu': pending['apdu'],
'rapdu': rapdu.hex().upper()})
if rapdus:
if pending['apdu'].startswith('80CAFF21'):
decoded = _scp81_decode_memory(rapdus[-1][0])
if decoded:
_BIP.log('script-memory', **decoded)
# '63 10' = "more data available" (GP Table 11-38); the
# live card uses a proprietary 'CA FE' for the same case.
if (rapdus[-1][1].upper() in ('CAFE', '6310')
and _SCP81_PAGES < SCP81_MAX_PAGES):
cont = _scp81_continuation(pending['apdu'])
if cont:
_SCP81_PAGES += 1
_SCP81_SCRIPT_PAGE_QUEUE.append(cont)
_BIP.log('script-page', index=index,
page=_SCP81_PAGES, apdu=cont)
if pending.get('pos') is not None:
_SCP81_SCRIPT_DONE.add(pending['pos'])
elif resume:
# Resumed dialog: the pending APDU was never reported, so it is
# still unexecuted - put it back in line and resend it.
if pending.get('page'):
_SCP81_SCRIPT_PAGE_QUEUE.insert(0, pending['apdu'])
else:
_SCP81_SCRIPT_NEXT = pending['pos']
_SCP81_SCRIPT_DONE.discard(pending['pos'])
_BIP.log('script-resend', index=index, apdu=pending['apdu'])
else:
# Fresh dialog (new trigger): the script runs from the start.
_scp81_restart_run()
elif status is not None:
# A report without a pending APDU (the server may have restarted
# mid-session): log the R-APDUs but do not advance anything.
if status != 'ok':
_BIP.log('script-status', index=None, status=status)
else:
count, rapdus = _scp81_parse_response(body)
for rapdu, sw in rapdus:
_BIP.log('script-rapdu', index=None, sw=sw, bytes=len(rapdu),
hex=rapdu.hex().upper()[:2000])
elif not resume:
# First POST of a fresh dialog: reset a previous run.
_scp81_restart_run()
apdu = None
if _SCP81_SCRIPT_PAGE_QUEUE:
apdu = _SCP81_SCRIPT_PAGE_QUEUE.pop(0)
_SCP81_SCRIPT_PENDING = {'index': _SCP81_SCRIPT_SENT_NO + 1,
'pos': None, 'page': True, 'apdu': apdu}
elif _SCP81_SCRIPT_NEXT < len(_SCP81_SCRIPT_BASE):
pos = _SCP81_SCRIPT_NEXT
apdu = _SCP81_SCRIPT_BASE[pos]
_SCP81_SCRIPT_NEXT = pos + 1
_SCP81_SCRIPT_PENDING = {'index': _SCP81_SCRIPT_SENT_NO + 1,
'pos': pos, 'page': False, 'apdu': apdu}
if apdu is not None:
index = _SCP81_SCRIPT_PENDING['index']
_SCP81_SCRIPT_SENT_NO = index
_BIP.log('script-send', index=index, apdu=apdu)
headers = _scp81_response_headers()
if _SCP81_TARGETED_APP:
headers['X-Admin-Targeted-Application'] = _SCP81_TARGETED_APP
# The working reference session (samples/HTTPOTA_session_3311_success1)
# answers with a relative URI plus a QUERY (/Download?req=N): a
# query-less Next-URI makes the card abort the TLS session. A '%d'
# in the configured/default URI is replaced with the command number.
template = _SCP81_NEXT_URI if _SCP81_NEXT_URI is not None else '/api/scp81?req=%d'
next_uri = template % index if '%d' in template else template
if next_uri:
headers['X-Admin-Next-URI'] = next_uri
u = apdu.upper()
if u.startswith('AA') or u.startswith('AE80'):
# Already a Command Scripting template (expanded format): send it
# verbatim instead of wrapping it again.
body_out = bytes.fromhex(u)
else:
body_out = _scp81_command_body(
apdu, definite=(_SCP81_SCRIPT_TEMPLATE == 'definite'),
cr_tag=_SCP81_SCRIPT_CR_TAG)
if _SCP81_APACHE_HEADERS:
if _SCP81_CHUNKED:
headers['Transfer-Encoding'] = 'chunked'
else:
headers['Content-Length'] = str(len(body_out))
headers['Content-Type'] = scp81.GP_CT_COMMAND
return 200, headers, body_out
_BIP.log('script-done', sent=_SCP81_SCRIPT_SENT_NO,
results=len(_SCP81_SCRIPT_RESULTS))
headers = _scp81_response_headers()
if _SCP81_APACHE_HEADERS:
headers['Content-Type'] = 'text/html; charset=UTF-8'
return 204, headers, b''
def _scp81_response_headers():
"""Base response headers, in the reference servers' order (Apache adds
Date/Server/X-Powered-By before the admin headers)."""
headers = {}
if _SCP81_APACHE_HEADERS:
import email.utils
headers['Date'] = email.utils.formatdate(usegmt=True)
headers['Server'] = 'Apache'
headers['X-Powered-By'] = 'PHP/7.0.33'
headers['X-Admin-Protocol'] = scp81.GP_PROTOCOL
return headers
def _parse_psk_map(raw):
"""Parse a PSK lookup table from an API request.
Accepts a list of {identity, psk_hex} objects (the PWA form) or a
{identity: psk_hex} map; entries without a usable identity or key are
skipped. Returns (table, error)."""
if raw is None:
return None, None
if isinstance(raw, dict):
raw = [{'identity': k, 'psk_hex': v} for k, v in raw.items()]
if not isinstance(raw, list):
return None, 'psk_map must be a list of {identity, psk_hex}'
table = {}
for item in raw:
if not isinstance(item, dict):
return None, 'psk_map entries must be {identity, psk_hex} objects'
ident = str(item.get('identity') or '').strip()
key_hex = re.sub(r'\s', '', str(item.get('psk_hex') or ''))
if not key_hex or not ident:
continue
try:
key = bytes.fromhex(key_hex)
except ValueError:
return None, 'psk_map[%s]: psk_hex is not valid hex' % ident
if key:
table[ident] = key
return table, None
def _redact_psk_fields(body):
"""Copy of a request body with PSK key material masked (keys must never
reach the logs; identities stay visible for diagnostics)."""
if not isinstance(body, dict):
return body
out = dict(body)
if out.get('psk_hex'):
out['psk_hex'] = '<redacted>'
psk_map = out.get('psk_map')
if isinstance(psk_map, dict):
out['psk_map'] = {k: '<redacted>' for k in psk_map}
elif isinstance(psk_map, list):
out['psk_map'] = [
dict(e, psk_hex='<redacted>')
if isinstance(e, dict) and e.get('psk_hex') else e
for e in psk_map]
return out
def _scp81_update_psk_map(body):
"""Replace the PSK table of the running TLS listener. The card presets are
the source of truth; the PWA pushes edits without a listener restart."""
global _SCP81_PSKS, _SCP81_PSK_LEGACY
table, err = _parse_psk_map((body or {}).get('psk_map'))
if err:
return {'ok': False, 'error': err}
if not table:
return {'ok': False, 'error': 'no usable PSK entries (identity + key required)'}
if not isinstance(_SCP81_LISTENER, scp81.PskTlsServer):
return {'ok': False, 'error': 'PSK TLS listener is not running'}
_SCP81_LISTENER.set_psk_map(table)
_SCP81_PSKS = dict(table)
_SCP81_PSK_LEGACY = None
_BIP.log('tls-psk-map', identities=sorted(table))
return {'ok': True, 'identities': sorted(table),
'listener': _scp81_listener_status()}
def _scp81_gen_install(body):
"""Generate the RAM APDU sequence for a .cap without touching the listener
or the running script. The PWA uses it to turn an 'Install from .cap'
script template into INSTALL [for load] / LOAD blocks / INSTALL [for
install] APDUs; the .cap itself is never stored."""
body = body or {}
cap_hex = re.sub(r'\s', '', body.get('cap_hex') or '')
if not cap_hex:
return {'ok': False, 'error': 'No cap_hex provided'}
try:
loadfile_aid, module_aid, loadfile_data = _cap_parse(cap_hex)
seq = _cap_apdu_sequence(
loadfile_aid, module_aid, loadfile_data,
sd_aid=re.sub(r'\s', '', body.get('sd_aid') or ''),
privileges=re.sub(r'\s', '', body.get('privileges') or '') or '00',
install_params=re.sub(r'\s', '', body.get('install_params') or ''),
stk_params=re.sub(r'\s', '', body.get('stk_params') or ''),
make_selectable=bool(body.get('make_selectable', True)))
except Exception as e:
return {'ok': False, 'error': 'cap parse failed: %s' % e}
_BIP.log('gen-install', apdus=len(seq), load_file_aid=loadfile_aid,
module_aid=module_aid)
return {'ok': True, 'apdus': seq, 'load_file_aid': loadfile_aid,
'module_aid': module_aid}
def _scp81_bip_control(body):
global _SCP81_LISTENER, _SCP81_PSKS, _SCP81_PSK_LEGACY
global _SCP81_MODE, _SCP81_TARGET
global _SCP81_SCRIPT_TEMPLATE, _SCP81_SCRIPT_CR_TAG, _SCP81_NEXT_URI
global _SCP81_LINK_EVENTS, _SCP81_TARGETED_APP, _SCP81_APACHE_HEADERS
global _SCP81_CHUNKED
body = body or {}
action = body.get('action', 'start')
if action == 'stop':
if _SCP81_LISTENER:
_SCP81_LISTENER.stop()
_SCP81_LISTENER = None
_SCP81_MODE = None
_SCP81_TARGET = None
_BIP.disable()
return {'ok': True, 'bip': _BIP.status(), 'listener': None}
host = body.get('host') or '127.0.0.1'
port = body.get('port')
port = int(port) if port not in (None, '') else 8443
mode = body.get('mode', 'dump')
if _SCP81_LISTENER:
_SCP81_LISTENER.stop()
_SCP81_LISTENER = None
_BIP.disable()
if mode == 'passthru':
# No local listener: the card's BIP channels connect straight to the
# external platform (e.g. a production HTTP OTA server), which
# terminates TLS and runs the administration dialog. The target is a
# configured address, never the address the card requests.
if not body.get('host') or body.get('port') in (None, ''):
return {'ok': False,
'error': 'passthru mode requires the target host and port'}
_SCP81_MODE = 'passthru'
_SCP81_TARGET = (host, port)
_BIP.on_data = _bip_data_available
_BIP.enable(host, port)
return {'ok': True, 'bip': _BIP.status(),
'listener': _scp81_listener_status()}
if mode == 'tls':
raw_map = body.get('psk_map')
table, err = _parse_psk_map(raw_map)
if err:
return {'ok': False, 'error': err}
if raw_map is not None and not table:
return {'ok': False,
'error': 'psk_map has no usable entries (identity + key required)'}
psk = None
identity = None
psk_hex = body.get('psk_hex') or ''
if table:
pass # table sent by the PWA from the presets
elif psk_hex:
# Legacy single-key form (API/tests): psk_hex [+ psk_identity].
try:
psk = bytes.fromhex(re.sub(r'\s', '', psk_hex))
except ValueError:
return {'ok': False, 'error': 'psk_hex is not valid hex'}
if not psk:
return {'ok': False, 'error': 'psk_hex is empty'}
identity = body.get('psk_identity')
if identity is not None:
identity = identity.strip() or None # empty clears the pin
elif _SCP81_PSKS:
table = dict(_SCP81_PSKS) # reuse the table of the last start
elif _SCP81_PSK_LEGACY:
psk, identity = _SCP81_PSK_LEGACY # reuse the last single key
else:
return {'ok': False, 'error': 'no PSK configured: send psk_map '
'(card presets) or psk_hex'}
script = body.get('script')
if isinstance(script, str):
if script in ('none', ''):
_scp81_reset_script([], 'none')
else:
return {'ok': False, 'error': 'unknown script preset: %s; send an '
'explicit APDU list or none' % script}
elif isinstance(script, list):
_scp81_reset_script(script, body.get('script_kind') or 'custom')
# No 'script' key: keep the configured script and its run progress
# (an explicit list starts a fresh run).
template = body.get('script_template', 'indefinite')
if template not in ('indefinite', 'definite'):
return {'ok': False, 'error': 'script_template must be indefinite or definite'}
_SCP81_SCRIPT_TEMPLATE = template
_SCP81_SCRIPT_CR_TAG = bool(body.get('cr_tag', False))
if 'next_uri' in body:
_SCP81_NEXT_URI = body.get('next_uri') or ''
_SCP81_LINK_EVENTS = bool(body.get('link_events', True))
_SCP81_TARGETED_APP = (body.get('targeted_app') or None)
# Defaults reproduce the working reference session (decrypted from
# samples/HTTP_OTA: RAM/HTTPOTA_test5.pcap): one keep-alive connection,
# Apache-style response headers, a chunked body whose script sits in
# one TLS record, no Connection header, and an X-Admin-Next-URI with a
# query whose command id increments. Overrides remain available.
_SCP81_APACHE_HEADERS = bool(body.get('apache_headers', True))
_SCP81_CHUNKED = bool(body.get('chunked', True))
cs = body.get('chunk_size')
chunk_size = int(cs) if cs not in (None, '') else 0
_SCP81_LISTENER = scp81.PskTlsServer(
host, port, psk, identity=identity, psk_map=(table or None),
responder=_scp81_script_responder,
chunked=bool(body.get('chunked', True)),
chunk_size=chunk_size,
keep_alive=bool(body.get('keep_alive', True)),
compact_headers=bool(body.get('compact_headers', False)),
tls_version=str(body.get('tls_version') or '1.2'),
cipher=(body.get('cipher') or None),
on_before_close=_scp81_wait_drained,
keylog=(body.get('keylog') or None),
conn_header=(body.get('conn_header') or 'none'),
answer_delay=(body.get('answer_delay') or 0),
on_log=lambda kind, **fields: _BIP.log(kind, **fields))
_SCP81_PSKS = dict(_SCP81_LISTENER.psk_map)
_SCP81_PSK_LEGACY = None if table else (psk, identity)
_SCP81_MODE = 'tls'
_SCP81_TARGET = (_SCP81_LISTENER.host, _SCP81_LISTENER.port)
_BIP.on_data = _bip_data_available
_BIP.enable(host, _SCP81_LISTENER.port)
return {'ok': True, 'bip': _BIP.status(), 'listener': _scp81_listener_status(),
'script': list(_SCP81_SCRIPT_BASE),
'script_kind': _SCP81_SCRIPT_KIND,
'script_template': _SCP81_SCRIPT_TEMPLATE,
'cr_tag': _SCP81_SCRIPT_CR_TAG, 'link_events': _SCP81_LINK_EVENTS,
'targeted_app': _SCP81_TARGETED_APP,
'apache_headers': _SCP81_APACHE_HEADERS,
'chunked': _SCP81_CHUNKED}
if mode != 'dump':
return {'ok': False, 'error': 'unsupported mode: %s' % mode}
_BIP.on_data = _bip_data_available
_SCP81_LISTENER = httpota.TcpDumpServer(
host, port,
on_rx=lambda peer, data: _BIP.log('dump-rx', peer=peer, bytes=len(data), hex=data.hex().upper()[:2000]),
on_log=lambda kind, **fields: _BIP.log(kind, **fields))
_SCP81_MODE = 'dump'
_SCP81_TARGET = (_SCP81_LISTENER.host, _SCP81_LISTENER.port)
_BIP.enable(host, _SCP81_LISTENER.port)
return {'ok': True, 'bip': _BIP.status(), 'listener': _scp81_listener_status()}
def _build_tr(scc, cmd_num, cmd_type, dev_src, dev_dst, cmd_qual):
"""Build the TERMINAL RESPONSE TLV payload for a fetched command
(includes PLI dictionary data for PROVIDE LOCAL INFORMATION)."""
if cmd_type == 0x03:
return bytes([0x81, 0x03, cmd_num, cmd_type, 0x00,
0x82, 0x02, dev_dst, dev_src,
0x84, 0x02, 0x01, _POLL_INTERVAL,
0x03, 0x01, 0x00])
base = bytes([0x81, 0x03, cmd_num, cmd_type, 0x00,
0x82, 0x02, dev_dst, dev_src])
if cmd_type == 0x26 and cmd_qual is not None:
pli_hex = _PLI_DATA.get(cmd_qual, '')
if pli_hex:
base += bytes.fromhex(pli_hex)
return base + bytes([0x03, 0x01, 0x00])
_RESULT_NAMES_BASIC = {
0x00: 'Command performed successfully',
0x01: 'Command performed with partial comprehension',
0x02: 'Command performed, with missing information',
0x03: 'REFUSED BY THE ME',
0x04: 'Command not understood by the ME',
0x05: 'Command not permitted by the user',
0x06: 'Command performed with modification',
0x20: 'Proactive SIM session terminated by the user',
0x21: 'Backward move in the proactive SIM session requested by the user',
0x22: 'No response from user',
0x23: 'Help information required by the user',
0x24: 'Action in contradiction with the current timer state',
0x25: 'Interaction with call control by NAA, temporary problem',
0x26: 'Launch browser generic error',
}
_RESULT_NAMES_GENERAL = {
0x10: 'Command performed with additional information',
0x20: 'ME currently unable to process command',
0x21: 'Network currently unable to process command',
0x22: 'User did not accept the proactive command',
0x23: 'User cleared down call before connection or network release',
0x24: 'Action in contradiction with the current enforcement state',
0x25: 'Action in contradiction with the current timer state',
0x26: 'ME currently unable to process command',
0x27: 'User did not accept the proactive command',
0x28: 'User cleared down call before connection or network release',
0x29: 'Action in contradiction with the current enforcement state',
0x2A: 'Action in contradiction with the current timer state',
0x30: 'Command performed but partial understanding',
0x31: 'Command performed, with missing information',
0x32: 'REFUSED BY THE ME',
0x33: 'Command not understood by the ME',
0x34: 'Command not permitted by the user',
0x35: 'Command performed with modification',
}
def _tr_result_name(b, is_general):
table = _RESULT_NAMES_GENERAL if is_general else _RESULT_NAMES_BASIC
if b in table:
return table[b]
if 0x40 <= b <= 0x4F or 0x70 <= b <= 0x7F:
return 'Command performed with modification'
if 0x60 <= b <= 0x6F:
return 'Command performed with limited understanding'
return None
def _extract_tr_result(tr_tlv):
"""Return (tag, value) of the Result CTLV (tag 0x03 basic or 0x83 general)
from a TERMINAL RESPONSE payload, or None if absent."""
if not tr_tlv:
return None
off = 0
while off < len(tr_tlv) - 1:
tag, tlen = tr_tlv[off], tr_tlv[off + 1]
if tag in (0x03, 0x83) and off + 2 + tlen <= len(tr_tlv):
return (tag, tr_tlv[off + 2: off + 2 + tlen])
off += 2 + tlen
return None
def _record_tr(entry, tr_tlv, tr_sw=None):
"""Attach a sent TERMINAL RESPONSE to a log entry: payload hex, SW and
server-side decode. tr_sw may be omitted (pySim auto-handler) and filled
later by _LoggingApduTracer."""
if entry is None:
return
entry['tr_hex'] = _tr_data_only(tr_tlv).hex()
if tr_sw is not None:
entry['tr_sw'] = tr_sw
try:
result = _extract_tr_result(tr_tlv)
if result is not None:
tag, val = result
entry['tr_result'] = val.hex()
name = _tr_result_name(val[0], tag == 0x83)
if name:
entry['tr_result_name'] = name
entry['tr_decoded'] = _decode_tr(entry.get('type_hex'), entry.get('qualifier'), entry['tr_hex'])
except Exception:
entry['tr_decoded'] = []
def _handle_card_disconnect():
global _CARD_CONNECTED
_poll_disable()
_cancel_menu_timeout()
_timer_cancel()
_CARD_CONNECTED = False
if _server_ref:
_server_ref.card = None
_server_ref.scc = None
_server_ref.stk_pending = None
_server_ref.menu_active = False
_server_ref.event_list = None
_server_ref.sim_menu = None
_server_ref.equipping = False
_server_ref.card_session = getattr(_server_ref, 'card_session', 0) + 1
_reset_proactive_log()
def _apply_equipped_card(server):
"""Common post-equip state refresh + TERMINAL PROFILE, shared by the
/api/command equip branch and the auto-equip worker."""
global _CARD_CONNECTED
server.stk_pending = None
server.menu_active = False
_cancel_menu_timeout()
_timer_cancel()
server.event_list = None
_reset_proactive_log()
server.card = server.app.card
server.scc = server.app.card._scc
server.scc.cat_cla = '80' if isinstance(server.card, UiccCardBase) else 'a0'
_CARD_CONNECTED = True
server.card_present = True
server.card_session = getattr(server, 'card_session', 0) + 1
_poll_enable()
sm, el = _send_terminal_profile(server.scc, server.terminal_profile)
server.sim_menu = sm
server.event_list = el
_tlog('equip: terminal profile done')
_AUTO_EQUIP = True
_AUTO_EQUIP_BUSY = False
def set_auto_equip(enabled):
global _AUTO_EQUIP
_AUTO_EQUIP = bool(enabled)
def _auto_equip_trigger():
"""Spawn a one-shot worker; never run equip in the pyscard monitor thread."""
global _AUTO_EQUIP_BUSY
if not _AUTO_EQUIP or _AUTO_EQUIP_BUSY:
return
_AUTO_EQUIP_BUSY = True
threading.Thread(target=_auto_equip_worker, name='auto-equip', daemon=True).start()
def _auto_equip_worker():
global _AUTO_EQUIP_BUSY
try:
with _CARD_LOCK:
server = _server_ref
if not server or _CARD_CONNECTED or not getattr(server, 'card_present', False):
return
app = server.app
if app is None or not getattr(server, 'terminal_profile', None):
return
server.equipping = True
try:
sys.stderr.write('AUTO-EQUIP: card inserted, initializing\n')
old_stdout, old_stderr = app.stdout, sys.stderr
app.stdout = StringIO()
sys.stderr = app.stdout
try:
app.onecmd_plus_hooks('equip')
finally:
app.stdout = old_stdout
sys.stderr = old_stderr
if not getattr(server, 'card_present', False) or server.app.card is None:
sys.stderr.write('AUTO-EQUIP: card gone during initialization\n')
return
_apply_equipped_card(server)
sys.stderr.write('AUTO-EQUIP: done\n')
except Exception as e:
sys.stderr.write('AUTO-EQUIP failed: %s\n' % e)
finally:
server.equipping = False
finally:
_AUTO_EQUIP_BUSY = False
class _CardPresenceObserver(CardObserver):
"""Passive PC/SC presence watcher: pyscard's CardMonitor only polls
SCardGetStatusChange (no connection, no APDUs), so it can never interleave
with our APDU traffic. We only update flags and tear down card state."""
def __init__(self, reader_name):
self.reader_name = reader_name
def update(self, observable, handlers):
addedcards, removedcards = handlers
try:
trigger_auto = False
for card in removedcards:
if str(getattr(card, 'reader', '')) == self.reader_name:
sys.stderr.write('CARD-WATCH: card removed from %s\n' % self.reader_name)
with _CARD_LOCK:
if _server_ref:
_server_ref.card_present = False
_handle_card_disconnect()
for card in addedcards:
if str(getattr(card, 'reader', '')) == self.reader_name:
sys.stderr.write('CARD-WATCH: card inserted into %s\n' % self.reader_name)
with _CARD_LOCK:
if _server_ref:
_server_ref.card_present = True
trigger_auto = True
if trigger_auto and _AUTO_EQUIP:
_auto_equip_trigger()
except Exception as e:
sys.stderr.write('CARD-WATCH error: %s\n' % e)
_card_presence_observer = None
def start_card_monitor(reader_name):
"""Start the process-wide pyscard monitor (one daemon thread, no process)
and register our reader's presence observer."""
global _card_presence_observer
if not reader_name:
return None
if _card_presence_observer is None:
_card_presence_observer = _CardPresenceObserver(reader_name)
CardMonitor().addObserver(_card_presence_observer)
return _card_presence_observer
def _init_proactive_session():
global _PROACTIVE_SESSION_START
_PROACTIVE_SESSION_START = time.time()
def _log_proactive(cmd_type, raw, qualifier=None, cmd_num=None):
global _PROACTIVE_ENTRY_ID
if _PROACTIVE_SESSION_START is None:
return
_PROACTIVE_ENTRY_ID += 1
entry = {
'id': _PROACTIVE_ENTRY_ID,
'type_hex': '%02x' % cmd_type,
'type_name': PROACTIVE_TYPE_NAMES.get(cmd_type, 'UNKNOWN'),
'elapsed': round(time.time() - _PROACTIVE_SESSION_START, 1),
'bytes': len(raw) if raw else 0,
'raw': raw.hex() if raw else None,
}
if cmd_num is not None:
entry['cmd_num'] = cmd_num
if qualifier is not None:
entry['qualifier'] = '%02x' % qualifier
try:
entry['cmd_decoded'] = _decode_cmd(cmd_type, raw, qualifier)
except Exception:
entry['cmd_decoded'] = []
_PROACTIVE_LOG.append(entry)
return entry
def _reset_proactive_log():
global _PROACTIVE_LOG, _PROACTIVE_SESSION_START
_PROACTIVE_LOG.clear()
_PROACTIVE_SESSION_START = time.time()
def _send_status(scc):
"""STATUS (F2) with correct P3 per card type: SIM=0x23, UICC=0x00.
P2=0C mirrors phone behavior - no FCP of the selected DF returned
(plain F2 00 00 would echo the FCP, which is unnecessary overhead)."""
p3 = '23' if scc.cat_cla == 'a0' else '00'
return scc._tp.send_apdu('%sf2000c%s' % (scc.cat_cla, p3))
def _send_event_download(scc, event_type, event_data=None):
"""Send ENVELOPE(Event Download) for the given event type.
Builds: CLA C2 0000 Lc D6 [len] (99 01 [type] 82 02 82 81 [extra])"""
inner = bytearray()
inner.extend([0x99, 0x01, event_type])
inner.extend([0x82, 0x02, 0x82, 0x81])
if event_data:
inner.extend(event_data)
d6_tlv = bytes([0xD6, len(inner)]) + bytes(inner)
env_hex = '%sc20000%02x%s' % (scc.cat_cla, len(d6_tlv), d6_tlv.hex())
sys.stderr.write('ENVELOPE(Event Download): type=0x%02x data=%s\n' % (event_type, event_data.hex() if event_data else '(none)'))
data, sw = scc._tp.send_apdu(env_hex)
sys.stderr.write('ENVELOPE SW: %s\n' % sw)
if sw.startswith('91'):
_handle_proactive_chain(scc, sw)
sw = '9000'
return data, sw
_FLUSHING_CHANNEL_EVENTS = False
# True while a FETCH/TERMINAL RESPONSE chain is running: terminal-initiated
# ENVELOPEs must never interleave with it.
_PROACTIVE_BUSY = False
def _bip_flush_channel_events(scc):
"""Inform the UICC about BIP link changes detected outside its proactive
commands (TS 102 223 7.5.11), if the card subscribed to Channel status.
Called when the proactive session is idle, never between FETCH and TR."""
global _FLUSHING_CHANNEL_EVENTS
if _FLUSHING_CHANNEL_EVENTS:
return
if not _SCP81_LINK_EVENTS:
_BIP.take_pending_events()
return
ev_list = getattr(_server_ref, 'event_list', None) or []
if 0x0A not in ev_list:
return
events = _BIP.take_pending_events()
if not events:
return
_FLUSHING_CHANNEL_EVENTS = True
try:
for ev in events:
_send_event_download(scc, 0x0A, bytes([
httpota.TAG_CHANNEL_STATUS | 0x80, 0x02, ev['status'], ev['info']]))
except Exception as e:
sys.stderr.write('Channel status event error: %s\n' % e)
finally:
_FLUSHING_CHANNEL_EVENTS = False
def _skip_ber_len(raw, off):
if off >= len(raw):
return off
if raw[off] < 0x80:
return off + 1
if raw[off] == 0x81:
return off + 2
return off + 3
# ---- TIMER MANAGEMENT (TS 102 223 6.6.21, 6.8.13/14, 7.4) -----------------
# The terminal keeps up to 8 timers per card session. On expiry it must send
# ENVELOPE (TIMER EXPIRATION, tag D7) so the card can act (a common OTA retry
# mechanism); a reset or card removal deactivates all timers.
_TIMERS = {}
_TIMER_LOCK = threading.Lock()
def _timer_cancel(timer_id=None):
"""Cancel one timer, or all of them (reset / card removal)."""
with _TIMER_LOCK:
ids = list(_TIMERS) if timer_id is None else [timer_id]
for tid in ids:
entry = _TIMERS.pop(tid, None)
if entry:
entry['timer'].cancel()
def _timer_remaining(timer_id):
with _TIMER_LOCK:
entry = _TIMERS.get(timer_id)
if not entry:
return None
return max(0, int(round(entry['deadline'] - time.time())))
def _timer_start(timer_id, seconds):
"""Start (or restart) a timer; returns False for an invalid identifier."""
if not 1 <= timer_id <= 8:
return False
_timer_cancel(timer_id)
timer = threading.Timer(seconds, _timer_fire, args=(timer_id, seconds))
timer.daemon = True
timer.start()
with _TIMER_LOCK:
_TIMERS[timer_id] = {'timer': timer, 'deadline': time.time() + seconds}
return True
def _timer_fire(timer_id, elapsed):
"""Timer callback: the timer is consumed on expiry (7.4.1); a timer that
was cancelled or restarted in the meantime must not report."""
with _TIMER_LOCK:
entry = _TIMERS.pop(timer_id, None)
if entry is None:
return
_timer_expired(timer_id, elapsed)
def _timer_expired(timer_id, elapsed):
"""Pass an expired timer to the UICC with ENVELOPE (TIMER EXPIRATION)."""
server = _server_ref
if not _CARD_CONNECTED or not server:
return
# Never inject the ENVELOPE while a fetched command awaits its TERMINAL
# RESPONSE (a paused STK menu); wait outside the card lock, then retry.
for _ in range(10):
if not getattr(server, 'stk_pending', None):
break
time.sleep(2)
with _CARD_LOCK:
if server is not _server_ref or not getattr(server, 'scc', None):
return
if getattr(server, 'stk_pending', None):
_timer_start(timer_id, 5)
return
scc = server.scc
inner = bytes([0x82, 0x02, 0x82, 0x81, 0xA4, 0x01, timer_id & 0xFF,
0xA5, 0x03]) + _hms_bcd(elapsed)
tlv = bytes([0xD7, len(inner)]) + inner
apdu = '%sc20000%02x%s' % (scc.cat_cla, len(tlv), tlv.hex())
for _ in range(3):
try:
data, sw = scc._tp.send_apdu(apdu)
except Exception as e:
sys.stderr.write('TIMER-EXPIRATION send error: %s\n' % e)
_handle_card_disconnect()
return
sys.stderr.write('ENVELOPE(Timer Expiration): timer=%d elapsed=%ds -> %s\n'
% (timer_id, elapsed, sw))
if sw == '9300':
# UICC busy: the terminal shall retry until accepted (7.4.1).
time.sleep(1)
continue
if sw.startswith('91'):
_handle_proactive_chain(scc, sw)
break
def _handle_timer_command(cmd_num, cmd_type, cmd_qual, raw, dev_src, dev_dst):
"""Terminal side of TIMER MANAGEMENT. Returns the TERMINAL RESPONSE payload."""
tlvs = httpota.proactive_tlvs(raw)
tid = _cmd_tlv(tlvs, 0x24)
timer_id = tid[0] if tid else 1
action = (cmd_qual or 0) & 0x03
base = bytes([0x81, 0x03, cmd_num, cmd_type, (cmd_qual or 0) & 0xFF,
0x82, 0x02, dev_dst, dev_src])
if action == 0x00:
value = _cmd_tlv(tlvs, 0x25)
if len(value) >= 3 and 1 <= timer_id <= 8:
secs = (_bcd_swap(value[0]) * 3600 + _bcd_swap(value[1]) * 60
+ _bcd_swap(value[2]))
if secs > 0:
_timer_start(timer_id, secs)
return base + bytes([0x03, 0x01, 0x00])
remaining = _timer_remaining(timer_id)
if remaining is None:
return base + bytes([0x03, 0x01, 0x24])
if action == 0x01:
_timer_cancel(timer_id)
return (base + bytes([0xA4, 0x01, timer_id & 0xFF, 0xA5, 0x03])
+ _hms_bcd(remaining) + bytes([0x03, 0x01, 0x00]))
def _decode_stk_text(raw):
try:
return _STK_DECODE._decode(raw, {}, 'stk')
except Exception:
return raw.hex()
def _decode_dcs_text(raw):
if not raw or len(raw) < 2:
return raw.hex() if raw else ''
try:
dcs = raw[0]
data = raw[1:]
if (dcs & 0x0C) == 0x08:
return codecs.decode(data, 'utf_16_be')
if (dcs & 0x0C) == 0x04:
return data.decode('latin-1', errors='replace')
return codecs.decode(data, 'gsm03.38')
except Exception:
return raw.hex()
def _parse_proactive_header(raw):
cmd_num, cmd_type = 1, 0
cmd_qual = None
dev_src, dev_dst = 0x83, 0x81
if raw[0] == 0xD0:
off = _skip_ber_len(raw, 1)
while off < len(raw) - 1:
tag, tlen = raw[off], raw[off + 1]
val = raw[off + 2: off + 2 + tlen]; off += 2 + tlen
# Cards use both the plain (01/02) and comprehension-required
# (81/82) tag variants - TS 101 220 7.1.1 leaves the CR flag to
# the application, and the reference cards switch between them.
if tag in (0x01, 0x81) and tlen >= 3:
cmd_num, cmd_type, cmd_qual = val[0], val[1], val[2]
elif tag in (0x02, 0x82) and tlen >= 2:
dev_src, dev_dst = val[0], val[1]
return cmd_num, cmd_type, dev_src, dev_dst, cmd_qual
def _find_sms_tpdu(raw):
if raw[0] == 0xD0:
off = _skip_ber_len(raw, 1)
while off < len(raw) - 1:
tag, tlen = raw[off], raw[off + 1]
val = raw[off + 2: off + 2 + tlen]; off += 2 + tlen
if tag == 0x8B and tlen >= 1:
return val.hex()
return None
def _calc_ud_offset(tpdu):
"""Calculate the offset of TP-UD (User Data) within an SMS TPDU.
Handles SMS-SUBMIT (MTI=01) and SMS-DELIVER (MTI=00)."""
first_octet = tpdu[0]
mti = first_octet & 0x03
vpf = (first_octet >> 3) & 0x03
if mti == 0x01:
# SMS-SUBMIT: 1 + 1(MR) + 1(DA_len) + 1(DA_type) + ceil(DA_len/2) + 1(PID) + 1(DCS) [+7 if VPF]
if len(tpdu) < 3:
return None
da_len_digits = tpdu[2]
da_data_bytes = (da_len_digits + 1) // 2
off = 1 + 1 + 1 + 1 + da_data_bytes + 1 + 1
if vpf in (0x01, 0x02): # relative or absolute
off += 7
if off >= len(tpdu):
return None
return off + 1 # skip UDL byte
elif mti == 0x00:
# SMS-DELIVER: 1 + 1(OA_len) + ceil(OA_len/2) + 1(PID) + 1(DCS) + 7(SCTS)
if len(tpdu) < 2:
return None
oa_len_digits = tpdu[1]
oa_data_bytes = (oa_len_digits + 1) // 2
off = 1 + 1 + oa_data_bytes + 1 + 1 + 7
if off >= len(tpdu):
return None
return off + 1 # skip UDL byte
return None
def _parse_sms_concat(tpdu_bytes):
"""Parse an SMS TPDU for UDH concatenation info and payload.
Returns (ref, total, num, payload_bytes) or (None, None, None, payload_bytes) if no concat."""
if not tpdu_bytes or len(tpdu_bytes) < 2:
return None, None, None, tpdu_bytes or b''
first_octet = tpdu_bytes[0]
udhi = bool(first_octet & 0x40)
ud_offset = _calc_ud_offset(tpdu_bytes)
if ud_offset is None or ud_offset >= len(tpdu_bytes):
return None, None, None, tpdu_bytes
if not udhi:
# No UDH — entire UD is the payload
return None, None, None, tpdu_bytes[ud_offset:]
# TP-UDHI is set: UD starts with UDHL
udhl = tpdu_bytes[ud_offset]
udh_start = ud_offset + 1
udh_end = udh_start + udhl
if udh_end > len(tpdu_bytes):
return None, None, None, tpdu_bytes[ud_offset:]
# Walk UDH IEs looking for concatenation
ref = None
total = None
num = None
ie_off = udh_start
while ie_off + 2 <= udh_end:
iei = tpdu_bytes[ie_off]
iedl = tpdu_bytes[ie_off + 1]
if ie_off + 2 + iedl > udh_end:
break
if iei == 0x00 and iedl == 3:
ref = tpdu_bytes[ie_off + 2]
total = tpdu_bytes[ie_off + 3]
num = tpdu_bytes[ie_off + 4]
elif iei == 0x08 and iedl == 4:
ref = (tpdu_bytes[ie_off + 2] << 8) | tpdu_bytes[ie_off + 3]
total = tpdu_bytes[ie_off + 4]
num = tpdu_bytes[ie_off + 5]
ie_off += 2 + iedl
payload = tpdu_bytes[ud_offset + 1 + udhl:] # payload after UDH
return ref, total, num, payload
def _parse_display_text(raw):
if raw[0] == 0xD0:
off = _skip_ber_len(raw, 1)
while off < len(raw) - 1:
tag, tlen = raw[off], raw[off + 1]
val = raw[off + 2: off + 2 + tlen]; off += 2 + tlen
if tag == 0x8D and tlen >= 1:
return _decode_dcs_text(val)
return None
def _parse_select_item(raw):
items = []
if raw[0] == 0xD0:
off = _skip_ber_len(raw, 1)
while off < len(raw) - 1:
tag, tlen = raw[off], raw[off + 1]
val = raw[off + 2: off + 2 + tlen]; off += 2 + tlen
if tag == 0x05 and tlen >= 1:
try:
_title = _decode_stk_text(val)
except Exception:
pass
elif tag in (0x8F, 0x0F) and tlen >= 2:
items.append({'id': val[0], 'text': _decode_stk_text(val[1:])})
return items
def _parse_setup_menu_items(raw):
items = []
if not raw or raw[0] != 0xD0:
return items
off = _skip_ber_len(raw, 1)
while off < len(raw) - 1:
tag, tlen = raw[off], raw[off + 1]
val = raw[off + 2: off + 2 + tlen]; off += 2 + tlen
if tag == 0x8F and tlen >= 2:
items.append({'id': val[0], 'text': _decode_stk_text(val[1:])})
return items
def _handle_proactive_chain(scc, sw91, on_fetch=None):
"""Run a FETCH/TERMINAL RESPONSE chain; marks the card as busy so that
terminal-initiated ENVELOPEs (Data available, Channel status, timers) wait."""
global _PROACTIVE_BUSY
_PROACTIVE_BUSY = True
try:
return _run_proactive_chain(scc, sw91, on_fetch)
finally:
_PROACTIVE_BUSY = False
def _run_proactive_chain(scc, sw91, on_fetch=None):
sys.stderr.write('91XX chain: sw=%s\n' % sw91)
sw = sw91
paused = False
while sw.startswith('91'):
fetch_len = int(sw[2:], 16) if len(sw) == 4 else 0x100
rv = scc._tp.send_apdu('%s120000%02x' % (scc.cat_cla, fetch_len))
sys.stderr.write('FETCH(%s): %s -> %s\n' % (fetch_len, rv[0] if rv[0] else '(none)', rv[1]))
fdata, sw = rv[0], rv[1]
raw = bytes.fromhex(fdata) if fdata else None
action = None
if raw:
cmd_num, cmd_type, dev_src, dev_dst, cmd_qual = _parse_proactive_header(raw)
entry = _log_proactive(cmd_type, raw, cmd_qual, cmd_num)
else:
cmd_num, cmd_type, dev_src, dev_dst, cmd_qual = 1, 0, 0x83, 0x81, None
entry = None
if on_fetch:
action = on_fetch(raw, cmd_num, cmd_type, dev_src, dev_dst)
paused = action == 'pause'
if not paused:
tr_tlv = None
if raw and cmd_type in (0x40, 0x41, 0x42, 0x43, 0x44):
tr_tlv = _handle_bip_command(scc, cmd_num, cmd_type, cmd_qual, raw, dev_src, dev_dst)
if cmd_type == 0x27:
tr_tlv = _handle_timer_command(cmd_num, cmd_type, cmd_qual, raw, dev_src, dev_dst)
if tr_tlv is None:
tr_tlv = _build_tr(scc, cmd_num, cmd_type, dev_src, dev_dst, cmd_qual)
tr_rv = scc._tp.send_apdu('%s140000%02x%s' % (scc.cat_cla, len(tr_tlv), tr_tlv.hex()))
sys.stderr.write('TR: cmd=%02x type=%02x -> %s %s\n' % (cmd_num, cmd_type, tr_rv[1], ('(%d bytes)' % len(tr_tlv))))
_record_tr(entry, tr_tlv, tr_rv[1])
sw = tr_rv[1]
if sw == '9000':
sys.stderr.write('STATUS poll (chain ended)\n')
st_data, st_sw = _send_status(scc)
sys.stderr.write('STATUS -> %s\n' % st_sw)
if st_sw.startswith('91'):
sw = st_sw
if action == 'exit':
_bip_flush_channel_events(scc)
return sw
if not paused:
# Never inject an ENVELOPE while a fetched command awaits its
# TERMINAL RESPONSE (the menu browser answers it later).
_bip_flush_channel_events(scc)
def _send_terminal_profile(scc, tp_hex):
tp_data, tp_sw = scc._tp.send_apdu('%s100000%02x%s' % (scc.cat_cla, len(tp_hex) // 2, tp_hex))
sim_menu = None
sim_menu = None
event_list = None
if tp_sw.startswith('91'):
sw = tp_sw
while sw.startswith('91'):
fetch_len = int(sw[2:], 16) if len(sw) == 4 else 0xff
fdata, sw = scc._tp.send_apdu('%s120000%02x' % (scc.cat_cla, fetch_len))
cmd_num, cmd_type = 1, 0
cmd_qual = None
dev_src, dev_dst = 0x83, 0x81
if fdata:
raw = bytes.fromhex(fdata)
if raw[0] == 0xD0:
off = _skip_ber_len(raw, 1)
menu = None
items = []
while off < len(raw) - 1:
tag, tlen = raw[off], raw[off + 1]
val = raw[off + 2: off + 2 + tlen]
off += 2 + tlen
if tag == 0x81 and tlen >= 3:
cmd_num, cmd_type, cmd_qual = val[0], val[1], val[2]
if cmd_type == 0x25:
menu = {'command_number': cmd_num, 'items': items}
elif tag == 0x82 and tlen >= 2:
dev_src, dev_dst = val[0], val[1]
elif tag == 0x05 and tlen >= 1 and menu is not None:
try:
menu['title'] = _STK_DECODE._decode(val, {}, 'stk_title')
except Exception:
menu['title'] = val.hex()
elif tag == 0x8F and tlen >= 2:
try:
txt = _STK_DECODE._decode(val[1:], {}, 'stk_item')
except Exception:
txt = val[1:].hex()
items.append({'id': val[0], 'text': txt})
elif tag in (0x99, 0x19) and tlen >= 1:
event_list = [b for b in val]
if menu:
sim_menu = menu
if fdata and cmd_type:
entry = _log_proactive(cmd_type, raw, cmd_qual, cmd_num)
else:
entry = None
tr_tlv = _build_tr(scc, cmd_num, cmd_type, dev_src, dev_dst, cmd_qual)
tr_rv = scc._tp.send_apdu('%s140000%02x%s' % (scc.cat_cla, len(tr_tlv), tr_tlv.hex()))
sys.stderr.write('TR(tp): cmd=%02x type=%02x -> %s\n' % (cmd_num, cmd_type, tr_rv[1]))
_record_tr(entry, tr_tlv, tr_rv[1])
sw = tr_rv[1]
if sw == '9000':
sys.stderr.write('STATUS poll (tp chain ended)\n')
st_data, st_sw = _send_status(scc)
sys.stderr.write('STATUS -> %s\n' % st_sw)
if st_sw.startswith('91'):
sw = st_sw
return sim_menu, event_list
def _validate_tp_hex(hex_str):
"""Validate a TERMINAL PROFILE hex string. Returns (hex_or_None, error)."""
h = re.sub(r'\s', '', str(hex_str or '')).upper()
if not h:
return None, 'profile is empty'
if not re.fullmatch(r'[0-9A-F]+', h):
return None, 'profile is not valid hex'
if len(h) % 2:
return None, 'profile must have an even number of hex digits'
if len(h) // 2 > 255:
return None, 'profile exceeds 255 bytes'
return h, None
def _resend_terminal_profile(server, scc):
"""Re-send the current TERMINAL PROFILE and reset the STK session state.
Shared by /api/rescue and the runtime profile update; the value lives in
server.terminal_profile (CLI default, overridable at runtime)."""
server.stk_pending = None
server.menu_active = False
_cancel_menu_timeout()
server.event_list = None
_reset_proactive_log()
sm, el = _send_terminal_profile(scc, server.terminal_profile)
server.sim_menu = sm
server.event_list = el
return {'ok': True, 'profile': server.terminal_profile,
'menu': sm is not None, 'events': el}
def _make_menu_fetch_handler(server, resp):
"""on_fetch callback for the menu chain: pauses on user-interactive commands
and stores the pending command so a TERMINAL RESPONSE can be sent later."""
def _on_menu_fetch(raw, cmd_num, cmd_type, dev_src, dev_dst):
if cmd_type == 0x21:
text = _parse_display_text(raw) if raw else None
if text:
server.stk_pending = {'type': 'display_text',
'cmd_num': cmd_num, 'cmd_type': cmd_type,
'dev_src': dev_src, 'dev_dst': dev_dst, 'text': text}
resp.update(type='display_text', text=text)
return 'pause'
elif cmd_type == 0x24:
items = _parse_select_item(raw) if raw else []
server.stk_pending = {'type': 'select_item',
'cmd_num': cmd_num, 'cmd_type': cmd_type,
'dev_src': dev_src, 'dev_dst': dev_dst, 'items': items}
resp.update(type='select_item', items=items)
return 'pause'
elif cmd_type == 0x25:
items = _parse_setup_menu_items(raw) if raw else []
server.stk_pending = {'type': 'select_item',
'cmd_num': cmd_num, 'cmd_type': cmd_type,
'dev_src': dev_src, 'dev_dst': dev_dst, 'items': items}
resp.update(type='select_item', items=items)
return 'pause'
return _on_menu_fetch
def _menu_send_response(server, result, item_id=None):
"""Send the pending command's TERMINAL RESPONSE and continue the chain.
Shared by /api/menu-respond and the user-input timeout watchdog. Returns
(payload, http_status)."""
if not server.stk_pending:
return {'error': 'no pending command'}, 400
scc = server.scc
RESULT_MAP = {'ok': 0x00, 'cancel': 0x10, 'back': 0x11, 'timeout': 0x12}
gr = RESULT_MAP.get(result, 0x00)
pd = server.stk_pending
cd = bytes([0x81, 0x03, pd['cmd_num'], pd['cmd_type'], 0x00])
di = bytes([0x82, 0x02, pd['dev_dst'], pd['dev_src']])
tr_data = cd + di
if isinstance(item_id, int) and result == 'ok' and pd['type'] == 'select_item':
tr_data += bytes([0x90, 0x01, item_id])
tr_data += bytes([0x83, 0x02, gr, 0x00])
tr_hex = '%s140000%02x%s' % (scc.cat_cla, len(tr_data), tr_data.hex())
tr_rv = scc._tp.send_apdu(tr_hex)
sys.stderr.write('TR(menu): cmd=%02x type=%02x result=%02x -> %s\n' % (pd['cmd_num'], pd['cmd_type'], gr, tr_rv[1]))
for entry in reversed(_PROACTIVE_LOG):
if (entry.get('cmd_num') == pd['cmd_num']
and entry.get('type_hex') == '%02x' % pd['cmd_type']
and 'tr_hex' not in entry):
_record_tr(entry, tr_data, tr_rv[1])
break
sw = tr_rv[1]
resp = {'sw': sw}
if result == 'cancel':
server.stk_pending = None
server.menu_active = False
else:
server.stk_pending = None
if sw.startswith('91'):
_handle_proactive_chain(scc, sw, _make_menu_fetch_handler(server, resp))
else:
server.menu_active = False
resp['type'] = 'done'
if server.stk_pending:
_arm_menu_timeout()
else:
_cancel_menu_timeout()
return resp, 200
def _finish_pending_menu(server, scc):
"""A new menu selection must never shadow a FETCHed command that awaits its
TERMINAL RESPONSE: answer it with a cancel TR (0x10) first, then drain any
follow-up proactive command so the card is ready for the new selection."""
pd = server.stk_pending
if not pd:
return
sys.stderr.write('MENU-SELECT: finishing pending cmd=%02x type=%02x with cancel TR\n'
% (pd['cmd_num'], pd['cmd_type']))
resp, _ = _menu_send_response(server, 'cancel', None)
sw = (resp or {}).get('sw', '')
if sw.startswith('91'):
_handle_proactive_chain(scc, sw)
class PysimHandler(BaseHTTPRequestHandler):
def _send_json(self, data, status=200):
self.send_response(status)
self.send_header('Content-Type', 'application/json')
self.send_header('Access-Control-Allow-Origin', '*')
self.end_headers()
self.wfile.write(json.dumps(data, ensure_ascii=False).encode())
def _read_body(self):
length = int(self.headers.get('Content-Length', 0))
return json.loads(self.rfile.read(length))
def _log_req(self, body=None):
if self.server.log_requests:
if body is not None:
sys.stderr.write("REQUEST %s %s: %s\n" % (self.command, self.path, json.dumps(body)))
else:
sys.stderr.write("REQUEST %s %s\n" % (self.command, self.path))
def _log_resp(self, data):
if self.server.log_requests:
sys.stderr.write("RESPONSE %s: %s\n" % (self.path, json.dumps(data, ensure_ascii=False)))
def do_OPTIONS(self):
self._log_req()
self.send_response(204)
self.send_header('Access-Control-Allow-Origin', '*')
self.send_header('Access-Control-Allow-Methods', 'GET, POST, OPTIONS')
self.send_header('Access-Control-Allow-Headers', 'Content-Type')
# Chrome/Edge Private Network Access: a page served from a public (or
# otherwise less-local) origin needs explicit permission to reach this
# loopback server. Without this, the preflight fails and the browser
# blocks the follow-up GET/POST ("Permission was denied ... loopback").
self.send_header('Access-Control-Allow-Private-Network', 'true')
self.end_headers()
def _serve_static(self):
web_dir = getattr(self.server, 'web_dir', None)
if not web_dir:
self.send_error(404)
return
rel = self.path.split('?', 1)[0].lstrip('/')
if rel in ('', '/'):
rel = 'index.html'
if '..' in rel.split('/') or rel.startswith('/'):
self.send_error(404)
return
fs_path = os.path.join(web_dir, rel)
if not os.path.isfile(fs_path):
self.send_error(404)
return
with open(fs_path, 'rb') as f:
data = f.read()
content_type = _STATIC_MIME.get(os.path.splitext(rel)[1].lower(), 'application/octet-stream')
self.send_response(200)
self.send_header('Content-Type', content_type)
self.send_header('Content-Length', str(len(data)))
if rel in ('index.html', 'sw.js'):
self.send_header('Cache-Control', 'no-cache')
self.end_headers()
self.wfile.write(data)
def do_GET(self):
# /api/status is pure cached state (no card I/O); keeping it out of the
# lock lets the UI report 'initializing' while a long equip holds the
# card lock. Result-shaping masks everything card-derived when the
# session is not connected.
if self.path == '/api/status':
self._do_GET()
return
# Serialize all card access: the background STATUS poll runs in its own
# thread and must never interleave with a FETCH/TERMINAL RESPONSE pair.
with _CARD_LOCK:
self._do_GET()
def _do_GET(self):
lang = _get_lang(self.headers)
if self.path == '/api/version':
self._log_req()
self._send_json({'version': VERSION})
self._log_resp({'version': VERSION})
elif self.path == '/api/status':
self._log_req()
app = self.server.app
rs = app.rs if app else None
lchan = rs.lchan[0] if rs else None
cur_file = lchan.selected_file if lchan else None
scc = app.card._scc if app and app.card else None
card = app.card if app else None
connected = bool(_CARD_CONNECTED and card is not None)
if not connected:
rs = None
lchan = None
cur_file = None
scc = None
card = None
data = {
'reader': str(self.server.sl) if self.server.sl else None,
'connected': connected,
'card_present': bool(getattr(self.server, 'card_present', False)),
'card_session': int(getattr(self.server, 'card_session', 0)),
'proactive_seq': _PROACTIVE_ENTRY_ID,
'equipping': bool(getattr(self.server, 'equipping', False)),
'auto_equip': bool(_AUTO_EQUIP),
'card': card.name if card else None,
'profile': str(rs.profile) if rs and rs.profile else None,
'app_ready': app is not None,
'adm_verified': rs.adm_verified if rs else False,
'atr': rs.identity.get('ATR') if rs and rs.identity else None,
'cla_byte': scc.cla_byte if scc else None,
'sel_ctrl': scc.sel_ctrl if scc else None,
'current_selection': {
'fid': cur_file.fid.upper() if cur_file and cur_file.fid else None,
'name': cur_file.name if cur_file else None,
'desc': cur_file.desc if cur_file else None,
'type': cur_file.__class__.__name__ if cur_file else None,
'path': str(lchan.get_cwd()) if lchan else None,
'file_type': _get_file_type(lchan, cur_file),
'file_size': lchan.selected_file_size() if lchan else None,
'record_len': lchan.selected_file_record_len() if lchan else None,
'num_of_rec': lchan.selected_file_num_of_rec() if lchan else None,
} if cur_file else None,
'channels': [str(i) for i, ch in rs.lchan.items() if ch] if rs else [],
}
self._send_json(data)
self._log_resp(data)
elif self.path == '/api/commands':
self._log_req()
app = self.server.app
if not app:
self._send_json({'error': _err('app_not_init', lang)}, 503)
self._log_resp({'error': _err('app_not_init', lang)})
return
cmds = sorted(
attr[3:] for attr in dir(app)
if attr.startswith('do_') and not attr.startswith('do__')
)
self._send_json(cmds)
self._log_resp(cmds)
elif self.path == '/api/cardinfo':
self._log_req()
app = self.server.app
if not app:
self._send_json({'error': _err('app_not_init', lang)}, 503)
self._log_resp({'error': _err('app_not_init', lang)})
return
out = StringIO()
old_stdout = app.stdout
old_stderr = sys.stderr
app.stdout = out
sys.stderr = out
try:
app.onecmd_plus_hooks('cardinfo')
output = _strip_ansi(out.getvalue())
except Exception as e:
output = str(e) + '\n' + traceback.format_exc()
finally:
app.stdout = old_stdout
sys.stderr = old_stderr
resp = {'output': output}
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/menu':
menu = self.server.sim_menu or {'items': []}
resp = {**menu, 'active': self.server.menu_active}
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/events':
resp = self.server.event_list or []
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/terminal-profile':
self._log_req()
tp = getattr(self.server, 'terminal_profile', None) or ''
resp = {'profile': tp or None, 'bytes': len(tp) // 2,
'cli_default': getattr(self.server, 'cli_terminal_profile', None)}
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/pli-qualifiers':
qualifiers = [{'code': '%02X' % q, 'name': PLI_QUALIFIER_NAMES[q]} for q in PLI_QUALIFIER_NAMES]
self._send_json(qualifiers)
self._log_resp(qualifiers)
elif self.path == '/api/pli-dict':
resp = {('%02X' % q): v for q, v in _PLI_DATA.items()}
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/poll-status':
resp = {'enabled': _POLL_ENABLED, 'interval': _POLL_INTERVAL}
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/proactive-log':
log = list(reversed(_PROACTIVE_LOG[-50:]))
self._send_json(log)
self._log_resp(log)
elif self.path == '/api/stk-status':
resp = {'active': self.server.menu_active,
'pending': self.server.stk_pending is not None,
'pending_type': self.server.stk_pending['type'] if self.server.stk_pending else None}
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/scp81/status':
self._log_req()
resp = {'bip': _BIP.status(), 'listener': _scp81_listener_status()}
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/scp81/log' or self.path.startswith('/api/scp81/log?'):
self._log_req()
after = 0
if '?' in self.path:
for kv in self.path.split('?', 1)[1].split('&'):
if kv.startswith('after='):
try:
after = int(kv[6:])
except ValueError:
after = 0
resp = {'seq': _BIP.seq, 'entries': _BIP.entries_after(after)[-200:]}
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/scp81/script':
self._log_req()
resp = _scp81_script_state()
self._send_json(resp)
self._log_resp(resp)
elif self.path.startswith('/api/'):
self._send_json({'error': _err('not_found', lang)}, 404)
self._log_resp({'error': _err('not_found', lang)})
else:
self._log_req()
self._serve_static()
def do_POST(self):
# Serialize all card access: the background STATUS poll runs in its own
# thread and must never interleave with a FETCH/TERMINAL RESPONSE pair.
with _CARD_LOCK:
_reset_poll_timer()
self._do_POST()
def _do_POST(self):
lang = _get_lang(self.headers)
if self.path == '/api/command':
app = self.server.app
if not app:
self._send_json({'error': _err('app_not_init', lang)}, 503)
self._log_resp({'error': _err('app_not_init', lang)})
return
body = self._read_body()
self._log_req(body)
cmd = body.get('cmd', '')
t0 = time.time()
out = StringIO()
old_stdout = app.stdout
old_stderr = sys.stderr
app.stdout = out
sys.stderr = out
try:
stop = app.onecmd_plus_hooks(cmd)
output = _strip_ansi(out.getvalue())
except Exception as e:
output = str(e) + '\n' + traceback.format_exc()
finally:
app.stdout = old_stdout
sys.stderr = old_stderr
elapsed = int((time.time() - t0) * 1000)
status = 'OK' if not output or 'not a recognized command' not in output else 'ERROR'
is_equip = str(cmd).strip().startswith('equip')
if is_equip:
_tlog('equip: onecmd_plus_hooks %dms' % elapsed)
if is_equip and self.server.app and self.server.app.card and self.server.terminal_profile:
_apply_equipped_card(self.server)
sys.stderr.write("CMD: %s → %s (%dms)\n" % (cmd, status, elapsed))
resp = {'output': output, 'stop': bool(stop)}
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/apdu':
scc = self.server.scc
if not scc:
self._send_json({'error': _err('reader_not_init', lang)}, 503)
self._log_resp({'error': _err('reader_not_init', lang)})
return
body = self._read_body()
self._log_req(body)
apdu_hex = body.get('apdu', '')
t0 = time.time()
try:
data, sw = scc.send_apdu_checksw(apdu_hex)
elapsed = int((time.time() - t0) * 1000)
resp = {'response': data, 'sw': sw}
sys.stderr.write("APDU: %s → SW: %s (%dms)\n" % (apdu_hex, sw, elapsed))
self._send_json(resp)
self._log_resp(resp)
except Exception as e:
elapsed = int((time.time() - t0) * 1000)
err = {'error': str(e)}
sys.stderr.write("APDU: %s → ERROR: %s (%dms)\n" % (apdu_hex, str(e), elapsed))
self._send_json(err, 500)
self._log_resp(err)
elif self.path == '/api/status-poll':
scc = self.server.scc
if not scc:
self._send_json({'error': _err('reader_not_init', lang)}, 503)
self._log_resp({'error': _err('reader_not_init', lang)})
return
sys.stderr.write('STATUS poll (manual)\n')
try:
st_data, st_sw = _send_status(scc)
sys.stderr.write('STATUS -> %s\n' % st_sw)
resp = {'sw': st_sw}
if st_sw.startswith('91'):
_handle_proactive_chain(scc, st_sw)
resp['proactive'] = True
self._send_json(resp)
self._log_resp(resp)
except Exception as e:
sys.stderr.write('STATUS poll error: %s\n' % e)
_handle_card_disconnect()
self._send_json({'sw': None, 'error': 'card disconnected'})
self._log_resp({'sw': None, 'error': 'card disconnected'})
elif self.path == '/api/rescue':
scc = self.server.scc
if not scc:
self._send_json({'error': _err('reader_not_init', lang)}, 503)
self._log_resp({'error': _err('reader_not_init', lang)})
return
if not self.server.terminal_profile:
self._send_json({'error': 'no terminal profile configured'}, 400)
self._log_resp({'error': 'no terminal profile configured'})
return
sys.stderr.write('RESCUE: re-sending TERMINAL PROFILE\n')
resp = _resend_terminal_profile(self.server, scc)
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/terminal-profile':
body = self._read_body()
self._log_req(body)
scc = self.server.scc
if not scc:
self._send_json({'error': _err('reader_not_init', lang)}, 503)
self._log_resp({'error': _err('reader_not_init', lang)})
return
profile = body.get('profile')
if profile is not None:
h, perr = _validate_tp_hex(profile)
if perr:
self._send_json({'error': perr}, 400)
self._log_resp({'error': perr})
return
self.server.terminal_profile = h
if not self.server.terminal_profile:
self._send_json({'error': 'no terminal profile configured'}, 400)
self._log_resp({'error': 'no terminal profile configured'})
return
sys.stderr.write('TERMINAL-PROFILE: re-sending %s\n' % self.server.terminal_profile)
try:
resp = _resend_terminal_profile(self.server, scc)
except Exception as e:
resp = {'ok': False, 'error': str(e)}
self._send_json(resp, 502)
self._log_resp(resp)
return
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/help':
app = self.server.app
if not app:
self._send_json({'error': _err('app_not_init', lang)}, 503)
self._log_resp({'error': _err('app_not_init', lang)})
return
body = self._read_body()
self._log_req(body)
cmd = body.get('cmd', '')
out = StringIO()
old_stdout = app.stdout
old_stderr = sys.stderr
app.stdout = out
sys.stderr = out
try:
app.onecmd_plus_hooks('help ' + cmd)
raw = out.getvalue()
finally:
app.stdout = old_stdout
sys.stderr = old_stderr
clean = _strip_ansi(raw)
parsed = _parse_help_text(clean)
self._send_json(parsed)
self._log_resp(parsed)
elif self.path == '/api/select':
app = self.server.app
if not app:
self._send_json({'error': _err('app_not_init', lang)}, 503)
self._log_resp({'error': _err('app_not_init', lang)})
return
body = self._read_body()
self._log_req(body)
path = body.get('path')
fid = body.get('fid')
name = fid if fid else body.get('name', '')
parent_sel = body.get('parent_sel')
parent_path = body.get('parent_path')
allow_probe = bool(body.get('allow_probe'))
rs = app.rs
if not rs:
self._send_json({'error': _err('no_card_state', lang)}, 503)
self._log_resp({'error': _err('no_card_state', lang)})
return
lchan = rs.lchan[0]
cleanup = None
try:
_collect_apdu_times()
try:
if path:
cur, cleanup = _select_path(lchan, path, app)
else:
cur, cleanup = _select_with_parent(lchan, name, parent_sel, app, parent_path, allow_probe)
finally:
apdu_times = _end_apdu_time_collection()
cur = cur or lchan.selected_file
data = {
'name': cur.name if cur else None,
'fid': cur.fid.upper() if cur and cur.fid else None,
'file_type': _get_file_type(lchan, cur),
'file_size': lchan.selected_file_size() if lchan else None,
'record_len': lchan.selected_file_record_len() if lchan else None,
'num_of_rec': lchan.selected_file_num_of_rec() if lchan else None,
'fci_hex': (lchan.selected_file_fcp_hex or '').upper() if lchan and lchan.selected_file_fcp_hex else None,
'apdu_times': apdu_times,
'exists': True,
}
self._send_json(data)
self._log_resp(data)
except Exception as e:
err = {'error': str(e), 'exists': False}
self._send_json(err, 404)
self._log_resp(err)
finally:
if cleanup:
cleanup()
elif self.path == '/api/read':
app = self.server.app
if not app:
self._send_json({'error': _err('app_not_init', lang)}, 503)
self._log_resp({'error': _err('app_not_init', lang)})
return
body = self._read_body()
self._log_req(body)
path = body.get('path')
fid = body.get('fid')
name = fid if fid else body.get('name', '')
parent_sel = body.get('parent_sel')
parent_path = body.get('parent_path')
allow_probe = bool(body.get('allow_probe'))
mode = body.get('mode', 'raw')
rs = app.rs
if not rs:
self._send_json({'error': _err('no_card_state', lang)}, 503)
self._log_resp({'error': _err('no_card_state', lang)})
return
lchan = rs.lchan[0]
cleanup = None
try:
_collect_apdu_times()
try:
sel = fid if fid else name
if path:
_, cleanup = _select_path(lchan, path, app)
else:
_, cleanup = _select_with_parent(lchan, sel, parent_sel, app, parent_path, allow_probe)
ft = _get_file_type(lchan, lchan.selected_file)
is_record = ft in ('linear_fixed', 'cyclic')
if mode == 'decoded':
cmd = 'read_records_decoded' if is_record else 'read_binary_decoded'
else:
cmd = 'read_records' if is_record else 'read_binary'
out = StringIO()
old_stdout = app.stdout
old_stderr = sys.stderr
app.stdout = out
sys.stderr = out
try:
app.onecmd_plus_hooks(cmd)
output = _strip_ansi(out.getvalue())
finally:
app.stdout = old_stdout
sys.stderr = old_stderr
finally:
apdu_times = _end_apdu_time_collection()
sw_match = re.search(r'SW:\s*(\w+)', output)
err_match = re.search(r'got (\w+)', output)
if err_match:
sw = err_match.group(1)
descs = {'6982': 'Security status not satisfied', '6983': 'PIN blocked',
'6985': 'Conditions of use not satisfied', '6A88': 'Referenced data not found',
'6A82': 'File not found'}
resp = {'success': False, 'sw': sw, 'error': descs.get(sw, 'Error')}
self._send_json(resp)
self._log_resp(resp)
return
sw = sw_match.group(1) if sw_match else '9000'
clean = re.sub(r'^SW:\s*\w+\s*', '', output, flags=re.MULTILINE).strip()
if mode == 'decoded':
try:
parsed = json.loads(clean)
resp = {'success': True, 'sw': sw, 'file_type': ft, 'decoded': parsed, 'apdu_times': apdu_times}
except json.JSONDecodeError:
resp = {'success': True, 'sw': sw, 'file_type': ft, 'data': clean, 'apdu_times': apdu_times}
elif is_record:
records = []
for line in clean.split('\n'):
m = re.match(r'^(\d+)\s(.+)', line)
if m:
records.append({'num': int(m.group(1)), 'data': m.group(2)})
resp = {'success': True, 'sw': sw, 'file_type': ft, 'records': records, 'apdu_times': apdu_times}
else:
resp = {'success': True, 'sw': sw, 'file_type': ft, 'data': clean, 'apdu_times': apdu_times}
self._send_json(resp)
self._log_resp(resp)
except Exception as e:
err = {'success': False, 'error': str(e)}
self._send_json(err, 500)
self._log_resp(err)
finally:
if cleanup:
cleanup()
elif self.path == '/api/write':
app = self.server.app
if not app:
self._send_json({'error': _err('app_not_init', lang)}, 503)
self._log_resp({'error': _err('app_not_init', lang)})
return
body = self._read_body()
self._log_req(body)
name = body.get('name', '')
data = body.get('data', '')
fid = body.get('fid')
record_nr = body.get('record_nr')
parent_sel = body.get('parent_sel')
parent_path = body.get('parent_path')
allow_probe = bool(body.get('allow_probe'))
rs = app.rs
if not rs:
self._send_json({'error': _err('no_card_state', lang)}, 503)
self._log_resp({'error': _err('no_card_state', lang)})
return
lchan = rs.lchan[0]
cleanup = None
try:
sel = fid if fid else name
_, cleanup = _select_with_parent(lchan, sel, parent_sel, app, parent_path, allow_probe)
ft = _get_file_type(lchan, lchan.selected_file)
is_record = ft in ('linear_fixed', 'cyclic')
if record_nr:
cmd = 'update_record %d %s' % (record_nr, data)
elif is_record:
cmd = 'update_record 1 %s' % data
else:
cmd = 'update_binary %s' % data
out = StringIO()
old_stdout = app.stdout
old_stderr = sys.stderr
app.stdout = out
sys.stderr = out
try:
app.onecmd_plus_hooks(cmd)
output = out.getvalue()
finally:
app.stdout = old_stdout
sys.stderr = old_stderr
sw_match = re.search(r'SW:\s*(\w+)', output)
err_match = re.search(r'got (\w+)', output)
if err_match:
sw = err_match.group(1)
descs = {'6982': 'Security status not satisfied', '6983': 'PIN blocked',
'6985': 'Conditions of use not satisfied', '6A88': 'Referenced data not found',
'6A82': 'File not found'}
resp = {'success': False, 'sw': sw, 'error': descs.get(sw, 'Error')}
else:
sw = sw_match.group(1) if sw_match else '9000'
resp = {'success': True, 'sw': sw}
self._send_json(resp)
self._log_resp(resp)
except Exception as e:
err = {'success': False, 'error': str(e)}
self._send_json(err, 500)
self._log_resp(err)
finally:
if cleanup:
cleanup()
elif self.path == '/api/tree':
app = self.server.app
if not app:
self._send_json({'error': _err('app_not_init', lang)}, 503)
self._log_resp({'error': _err('app_not_init', lang)})
return
body = self._read_body()
self._log_req(body)
fid = body.get('fid')
name = fid if fid else body.get('name', '')
fid = body.get('fid')
parent_sel = body.get('parent_sel')
parent_path = body.get('parent_path')
allow_probe = bool(body.get('allow_probe'))
rs = app.rs
if not rs:
self._send_json({'error': _err('no_card_state', lang)}, 503)
self._log_resp({'error': _err('no_card_state', lang)})
return
lchan = rs.lchan[0]
cleanup = None
try:
sel = fid if fid else name
_, cleanup = _select_with_parent(lchan, sel, parent_sel, app, parent_path, allow_probe)
cur = lchan.selected_file
out = StringIO()
old_stdout = app.stdout
old_stderr = sys.stderr
app.stdout = out
sys.stderr = out
try:
app.onecmd_plus_hooks('tree')
output = _strip_ansi(out.getvalue())
finally:
app.stdout = old_stdout
sys.stderr = old_stderr
children = _parse_tree_output(output)
sels = lchan.selected_file.get_selectables() if lchan and lchan.selected_file else {}
for child in children:
if child['isDir'] and child['name'] in sels:
f = sels[child['name']]
if hasattr(f, 'aid') and f.aid:
child['aid'] = f.aid.upper()
resp = {
'exists': True,
'name': cur.name if cur else None,
'fid': cur.fid.upper() if cur and cur.fid else None,
'file_type': _get_file_type(lchan, cur),
'children': children,
}
self._send_json(resp)
self._log_resp(resp)
except Exception as e:
sys.stderr.write('Handler error: %s\n' % e)
if 'Card' in str(e) or 'Transaction' in str(e) or 'Transmit' in str(e):
_handle_card_disconnect()
err = {'success': False, 'error': str(e), 'exists': False}
self._send_json(err, 500)
self._log_resp(err)
finally:
if cleanup:
cleanup()
elif self.path == '/api/menu-select':
scc = self.server.scc
if not scc:
self._send_json({'error': 'card reader not available'}, 503)
return
body = self._read_body()
self._log_req(body)
_finish_pending_menu(self.server, scc)
item_id = body.get('item_id', 0)
if not isinstance(item_id, int):
item_id = int(item_id)
self.server.menu_active = True
# Build ENVELOPE(Menu Selection): D3 [len] DeviceIdentities + ItemIdentifier
menu_tlv = bytes([0xD3, 0x07, 0x02, 0x02, 0x01, 0x81, 0x90, 0x01, item_id])
env_hex = '%sc20000%02x%s' % (scc.cat_cla, len(menu_tlv), menu_tlv.hex())
data, sw = scc._tp.send_apdu(env_hex)
resp = {'type': 'done', 'sw': sw}
on_fetch = _make_menu_fetch_handler(self.server, resp)
if sw.startswith('91'):
_handle_proactive_chain(scc, sw, on_fetch)
else:
self.server.menu_active = False
self.server.stk_pending = None
if sw == '9000':
sys.stderr.write('STATUS poll (menu-select 9000)\n')
st_data, st_sw = _send_status(scc)
sys.stderr.write('STATUS -> %s\n' % st_sw)
if st_sw.startswith('91'):
_handle_proactive_chain(scc, st_sw, on_fetch)
if self.server.stk_pending:
_arm_menu_timeout()
else:
_cancel_menu_timeout()
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/menu-respond':
body = self._read_body()
self._log_req(body)
resp, code = _menu_send_response(self.server, body.get('result', 'ok'), body.get('item_id'))
self._send_json(resp, code)
self._log_resp(resp)
elif self.path == '/api/event-send':
scc = self.server.scc
if not scc:
self._send_json({'error': _err('reader_not_init', lang)}, 503)
self._log_resp({'error': _err('reader_not_init', lang)})
return
body = self._read_body()
self._log_req(body)
event_type = body.get('event_type')
event_data_hex = body.get('event_data')
if event_type is None:
self._send_json({'error': 'event_type is required'}, 400)
return
event_data = bytes.fromhex(event_data_hex) if event_data_hex else None
try:
data, sw = _send_event_download(scc, event_type, event_data)
resp = {'sw': sw}
if data:
resp['data'] = data
self._send_json(resp)
self._log_resp(resp)
except Exception as e:
sys.stderr.write('Event send error: %s\n' % e)
_handle_card_disconnect()
self._send_json({'sw': None, 'error': 'card disconnected'})
self._log_resp({'sw': None, 'error': 'card disconnected'})
elif self.path == '/api/pli-dict':
body = self._read_body()
self._log_req(body)
if isinstance(body, dict):
for k, v in body.items():
if isinstance(v, str):
try:
code = int(k, 16)
if code in _PLI_DATA:
bytes.fromhex('') if not v else bytes.fromhex(v)
_PLI_DATA[code] = v
except (ValueError, KeyError):
pass
resp = {('%02X' % q): v for q, v in _PLI_DATA.items()}
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/poll-toggle':
body = self._read_body()
self._log_req(body)
if isinstance(body, dict) and body.get('enabled'):
_poll_enable()
else:
_poll_disable()
resp = {'enabled': _POLL_ENABLED, 'interval': _POLL_INTERVAL}
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/send-ota':
app = self.server.app
if not app:
self._send_json({'error': _err('app_not_init', lang)}, 503)
self._log_resp({'error': _err('app_not_init', lang)})
return
body = self._read_body()
self._log_req(body)
sp = body.get('sp', '')
apdu = body.get('apdu', '')
scc = self.server.scc
if not scc:
self._send_json({'error': _err('reader_not_init', lang)}, 503)
self._log_resp({'error': _err('reader_not_init', lang)})
return
include_cpi = body.get('includeCpi', True)
try:
if apdu:
# RAM operation: SCP80-wrap the raw GP command
spi1 = body.get('spi1', '16')
spi2 = body.get('spi2', '01')
kic = body.get('kic', '25')
kid = body.get('kid', '25')
tar = body.get('tar', '000000')
cntr = body.get('cntr', '')
kic_key = body.get('kicKey', '')
kid_key = body.get('kidKey', '')
sp_hex, _ = _ota_reference(spi1, spi2, kic, kid, tar, cntr, apdu, kic_key, kid_key)
sp_bytes = bytes.fromhex(sp_hex)
else:
# Regular SCP80: use pre-built secured packet
sp_hex = sp
sp_bytes = bytes.fromhex(sp_hex)
spi2_val = int(body.get('spi2', '00'), 16)
por_in_submit = bool(spi2_val & 0x20)
submit_handler = None
old_proactive = None
if por_in_submit and hasattr(scc, '_tp'):
submit_handler = PoRSubmitHandler()
old_proactive = scc._tp.proactive_handler
scc._tp.proactive_handler = submit_handler
try:
max_chunk = 130
chunks = [sp_bytes[i:i+max_chunk] for i in range(0, len(sp_bytes), max_chunk)]
total = len(chunks)
sys.stderr.write('OTA SEND: SPI %s %s KIc %s KID %s TAR %s CNTR %s LEN %dB CHUNKS %d\n' % (
body.get('spi1', ''), body.get('spi2', ''), body.get('kic', ''),
body.get('kid', ''), body.get('tar', ''), body.get('cntr', ''),
len(sp_bytes), total))
if total > MAX_ENVELOPE_SEGMENTS:
resp = {'success': False, 'error': 'Secured packet too large: %d segments (max %d)' % (total, MAX_ENVELOPE_SEGMENTS)}
sys.stderr.write('OTA SEND FAILED: %d segments exceeds max %d\n' % (total, MAX_ENVELOPE_SEGMENTS))
else:
sys.stderr.write('RAM C-APDU: %s\n' % apdu if apdu else sp)
sys.stderr.write('RAM SECURED-PACKET: %s\n' % sp_hex)
last_data = None
last_sw = None
for i, chunk in enumerate(chunks):
tpdu = _build_sms_tpdu(chunk.hex(), total, i + 1, oa_number=self.server.sms_oa,
include_cpi=include_cpi)
data, sw = _send_envelope(tpdu, scc, sm_sc=self.server.sms_sc, submit_handler=submit_handler)
last_data = data
last_sw = sw
if sw != '9000' and not sw.startswith('91'):
resp = {'success': False, 'sw': sw, 'error': 'ENVELOPE failed at chunk %d' % (i + 1)}
sys.stderr.write('OTA SEND FAILED: chunk %d SW %s\n' % (i + 1, sw))
break
else:
resp = {'success': True, 'sw': last_sw, 'response_data': last_data if last_data else None}
por_src = 'envelope'
por_hex = resp['response_data']
if submit_handler and submit_handler.submit_tpdu_hex:
tpdu_b = bytes.fromhex(submit_handler.submit_tpdu_hex)
idx = tpdu_b.find(b'\x02\x71\x00')
if idx >= 0:
por_hex = tpdu_b[idx:].hex()
por_src = 'sms-submit'
por = _decode_por(body.get('spi1', ''), body.get('spi2', ''), body.get('kic', ''),
body.get('kid', ''), body.get('cntr', ''), body.get('kicKey', ''),
body.get('kidKey', ''), por_hex)
# Check for SPI2=0x21 (PoR required) but got 9000 with no PoR → card refuses PoR
is_ram = bool(apdu)
por_required = bool(spi2_val & 0x01)
no_por_received = not por_hex and not (submit_handler and submit_handler.submit_tpdu_hex)
if is_ram and por_required and last_sw == '9000' and no_por_received:
sys.stderr.write('WARNING: Card refused to return PoR - ENVELOPE returned 9000 with no response data\n')
sys.stderr.write('RAM RESPONSE-PACKET: %s\n' % (por_hex if por_hex else 'empty'))
if por:
resp['por'] = por
extra = ''
if por.get('decoded'):
extra = ' (compact: %s cmd, last SW %s)' % (por['decoded'].get('number_of_commands', '?'),
por['decoded'].get('last_status_word', '?'))
sys.stderr.write('RAM R-APDU: %s\n' % por['decoded'].get('last_response_data', ''))
sys.stderr.write('OTA PoR[%s]: status=%s TAR=%s CNTR=%s PCNTR=%s RPL=%s RHL=%s%s\n' % (
por_src, por.get('response_status'), por.get('tar'), por.get('cntr'),
por.get('pcntr'), por.get('rpl'), por.get('rhl'), extra))
elif por_hex:
sys.stderr.write('OTA PoR[%s]: undecodable raw=%s\n' % (por_src, str(por_hex)))
else:
sys.stderr.write('OTA PoR[%s]: none\n' % por_src)
finally:
if submit_handler and hasattr(scc, '_tp'):
scc._tp.proactive_handler = old_proactive
self._send_json(resp)
self._log_resp(resp)
except Exception as e:
sys.stderr.write('OTA send error: %s\n' % e)
if 'Card' in str(e) or 'Transaction' in str(e) or 'Transmit' in str(e):
_handle_card_disconnect()
err = {'success': False, 'error': str(e)}
self._send_json(err, 500)
self._log_resp(err)
elif self.path == '/api/sp-verify':
body = self._read_body()
self._log_req(body)
try:
ref, spi = _ota_reference(body.get('spi1', ''), body.get('spi2', ''), body.get('kic', ''),
body.get('kid', ''), body.get('tar', ''), body.get('cntr', ''),
body.get('apdu', ''), body.get('kicKey', ''), body.get('kidKey', ''))
js_sp = (body.get('sp', '') or '').replace(' ', '').lower()
ref_l = ref.lower()
diffs = []
if js_sp != ref_l:
n = min(len(js_sp), len(ref_l))
for i in range(0, n, 2):
if js_sp[i:i+2] != ref_l[i:i+2]:
diffs.append({'offset': i // 2, 'js': js_sp[i:i+2], 'ref': ref_l[i:i+2]})
if len(js_sp) != len(ref_l):
diffs.append({'offset': n // 2, 'js': js_sp[n:], 'ref': ref_l[n:]})
resp = {'js_sp': js_sp, 'py_sp': ref_l, 'match': js_sp == ref_l, 'diffs': diffs[:50], 'spi': spi}
self._send_json(resp)
self._log_resp(resp)
except Exception as e:
err = {'success': False, 'error': str(e)}
self._send_json(err, 500)
self._log_resp(err)
elif self.path == '/api/ram-install':
body = self._read_body()
self._log_req(body)
scc = self.server.scc
if not scc:
self._send_json({'error': _err('reader_not_init', lang)}, 503)
self._log_resp({'error': _err('reader_not_init', lang)})
return
try:
cap_hex = body.get('cap_hex', '').replace(' ', '')
if not cap_hex:
self._send_json({'error': 'No cap_hex provided'}, 400)
return
# Parse .cap file
loadfile_aid, module_aid, loadfile_data = _cap_parse(cap_hex)
# SCP80 params
spi1 = body.get('spi1', '16')
spi2 = body.get('spi2', '01')
kic = body.get('kic', '25')
kid = body.get('kid', '25')
tar = body.get('tar', '000000')
cntr = body.get('cntr', '00000000')
kic_key = body.get('kicKey', '')
kid_key = body.get('kidKey', '')
sd_aid = body.get('sd_aid', '').replace(' ', '')
install_params_hex = body.get('install_params', '').replace(' ', '')
stk_params_hex = body.get('stk_params', '').replace(' ', '')
make_selectable = body.get('make_selectable', True)
privileges_hex = body.get('privileges', '').replace(' ', '') or '00'
# LOAD block size: the default 240-byte payload cannot be sent
# over SCP80 (pySim refuses a secured packet above one SMS).
# Fit it automatically, or honour an explicit override capped
# to what still encodes into a single SMS.
block_size_req = body.get('load_block_size')
if block_size_req in (None, ''):
block_size_req = None
else:
try:
block_size_req = int(block_size_req)
except (TypeError, ValueError):
block_size_req = -1
if not 1 <= block_size_req <= 240:
err = {'success': False,
'error': 'load_block_size must be 1..240'}
self._send_json(err, 400)
self._log_resp(err)
return
max_block = _max_load_block_size(spi1, spi2, kic, kid, tar, cntr,
kic_key, kid_key,
requested=block_size_req or 240)
if max_block < 1:
err = {'success': False,
'error': 'no LOAD block fits a single SMS with these '
'SCP80 parameters'}
self._send_json(err, 500)
self._log_resp(err)
return
block_size = min(block_size_req, max_block) if block_size_req else max_block
block_clamped = block_size_req is not None and block_size != block_size_req
sys.stderr.write('RAM-INSTALL: LOAD block size %d bytes%s\n' % (
block_size,
(' (requested %d, clamped to fit one SMS)' % block_size_req)
if block_clamped else ''))
steps = []
encode_error = None
include_cpi = body.get('includeCpi', True)
spi2_val = int(spi2, 16)
por_in_submit = bool(spi2_val & 0x20)
def _send_gp_apdu(apdu_hex, step_name):
nonlocal cntr, encode_error
try:
sp_hex, _ = _ota_reference(spi1, spi2, kic, kid, tar, cntr, apdu_hex, kic_key, kid_key)
except ValueError as e:
encode_error = str(e)
steps.append({'name': step_name, 'por_status': 'encode_error',
'sw': encode_error})
sys.stderr.write('RAM-INSTALL: %s encode failed: %s\n' % (step_name, e))
return False
sp_bytes = bytes.fromhex(sp_hex)
max_chunk = 130
chunks = [sp_bytes[i:i + max_chunk] for i in range(0, len(sp_bytes), max_chunk)]
submit_handler = None
old_proactive = None
if por_in_submit and hasattr(scc, '_tp'):
submit_handler = PoRSubmitHandler()
old_proactive = scc._tp.proactive_handler
scc._tp.proactive_handler = submit_handler
try:
last_data = None
last_sw = None
for i, chunk in enumerate(chunks):
tpdu = _build_sms_tpdu(chunk.hex(), len(chunks), i + 1,
oa_number=self.server.sms_oa, include_cpi=include_cpi)
data, sw = _send_envelope(tpdu, scc, sm_sc=self.server.sms_sc,
submit_handler=submit_handler)
last_data = data
last_sw = sw
if sw != '9000' and not sw.startswith('91'):
steps.append({'name': step_name, 'por_status': 'envelope_error', 'sw': sw})
sys.stderr.write('RAM-INSTALL: %s ENVELOPE failed SW %s\n' % (step_name, sw))
return False
# Decode PoR
por_src = 'envelope'
por_hex = last_data
if submit_handler and submit_handler.submit_tpdu_hex:
tpdu_b = bytes.fromhex(submit_handler.submit_tpdu_hex)
idx = tpdu_b.find(b'\x02\x71\x00')
if idx >= 0:
por_hex = tpdu_b[idx:].hex()
por_src = 'sms-submit'
por = _decode_por(spi1, spi2, kic, kid, cntr, kic_key, kid_key, por_hex)
por_status = 'unknown'
if por and por.get('decoded'):
ps = por['decoded'].get('response_status', '')
por_status = 'por_ok' if ps == '9100' else 'por_error_%s' % ps
sys.stderr.write('RAM-INSTALL: %s PoR[%s] status=%s\n' % (step_name, por_src, ps))
elif last_sw == '9000' and not por_hex:
por_status = 'no_por'
steps.append({'name': step_name, 'por_status': por_status, 'sw': last_sw})
# Increment counter
cntr = '%010X' % ((int(cntr, 16) + 1) % (2 ** 32))
return True
finally:
if submit_handler and hasattr(scc, '_tp'):
scc._tp.proactive_handler = old_proactive
# INSTALL [for load] -> LOAD blocks -> INSTALL [for install]
seq = _cap_apdu_sequence(
loadfile_aid, module_aid, loadfile_data, sd_aid=sd_aid,
privileges=privileges_hex,
install_params=install_params_hex, stk_params=stk_params_hex,
make_selectable=make_selectable, block_size=block_size)
sys.stderr.write('RAM-INSTALL: %d APDUs (INSTALL / %d x LOAD / INSTALL) loadfile_aid=%s\n' % (
len(seq), len(seq) - 2, loadfile_aid))
for apdu_idx, gp_apdu in enumerate(seq):
if apdu_idx == 0:
step_name = 'INSTALL [for load]'
elif apdu_idx == len(seq) - 1:
step_name = 'INSTALL [for install]'
else:
step_name = 'LOAD (%d/%d)' % (apdu_idx, len(seq) - 2)
if not _send_gp_apdu(gp_apdu, step_name):
resp = {'success': False, 'steps': steps, 'failed_step': len(steps),
'error': encode_error or ('%s failed' % step_name),
'load_file_aid': loadfile_aid, 'module_aid': module_aid,
'load_block_size': block_size,
'load_block_size_requested': block_size_req,
'load_block_size_clamped': block_clamped}
self._send_json(resp)
self._log_resp(resp)
return
resp = {'success': True, 'steps': steps, 'load_file_aid': loadfile_aid,
'module_aid': module_aid, 'final_cntr': cntr,
'load_block_size': block_size,
'load_block_size_requested': block_size_req,
'load_block_size_clamped': block_clamped}
sys.stderr.write('RAM-INSTALL: Complete — loadfile_aid=%s module_aid=%s cntr=%s\n' % (
loadfile_aid, module_aid, cntr))
self._send_json(resp)
self._log_resp(resp)
except Exception as e:
sys.stderr.write('RAM-INSTALL error: %s\n' % e)
err = {'success': False, 'error': str(e)}
self._send_json(err, 500)
self._log_resp(err)
elif self.path == '/api/scp81/bip':
body = self._read_body()
# Never log the pre-shared keys.
self._log_req(_redact_psk_fields(body))
try:
resp = _scp81_bip_control(body)
except Exception as e:
resp = {'ok': False, 'error': str(e)}
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/scp81/psk-map':
body = self._read_body()
self._log_req(_redact_psk_fields(body))
try:
resp = _scp81_update_psk_map(body)
except Exception as e:
resp = {'ok': False, 'error': str(e)}
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/scp81/queue':
body = self._read_body()
self._log_req(body)
apdus = body.get('apdus') or ([body.get('apdu')] if body.get('apdu') else [])
apdus = [a for a in apdus if a]
if not apdus:
resp = {'ok': False, 'error': 'no apdus given'}
elif _SCP81_LISTENER is None:
resp = {'ok': False, 'error': 'SCP81 listener is not running'}
else:
queued = _scp81_queue_script(
apdus, kind=body.get('kind') or 'custom',
force=bool(body.get('force', False)))
resp = dict(queued, ok=bool(queued.get('queued')))
if queued.get('queued'):
resp['note'] = ('queued as the SCP81 command script; '
'runs on the card next POST (push/trigger)')
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/scp81/gen-install':
body = self._read_body()
self._log_req(body)
try:
resp = _scp81_gen_install(body)
except Exception as e:
resp = {'ok': False, 'error': str(e)}
self._send_json(resp)
self._log_resp(resp)
elif self.path == '/api/scp81/log-clear':
body = self._read_body()
self._log_req(body)
_BIP.clear_log()
resp = {'ok': True, 'seq': _BIP.seq}
self._send_json(resp)
self._log_resp(resp)
else:
self._send_json({'error': _err('not_found', lang)}, 404)
self._log_resp({'error': _err('not_found', lang)})
def log_message(self, format, *args):
sys.stderr.write('%s - - [%s] %s\n' % (self.client_address[0], self.log_date_time_string(), format % args))
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