def _dmail_auto_publish(self, dmail_address):
data_rw = yield from self.engine.tasks.send_get_data(\
dmail_address.site_key, retry_factor=100)
if data_rw.data:
if log.isEnabledFor(logging.DEBUG):
log.debug("Succeeded in fetching dmail site [{}]; won't"\
" auto-publish."\
.format(mbase32.encode(dmail_address.site_key)))
return
if log.isEnabledFor(logging.INFO):
log.info("Failed to fetch dmail site [{}]; republishing."\
.format(mbase32.encode(dmail_address.site_key)))
private_key = rsakey.RsaKey(privdata=dmail_address.site_privatekey)
dh = dhgroup14.DhGroup14()
dh.x = sshtype.parseMpint(dmail_address.keys[0].x)[1]
dh.generate_e()
dms = dmail.DmailSite()
root = dms.root
root["ssm"] = "mdh-v1"
root["sse"] = base58.encode(sshtype.encodeMpint(dh.e))
root["target"] =\
mbase32.encode(dmail_address.keys[0].target_key)
root["difficulty"] = int(dmail_address.keys[0].difficulty)
storing_nodes =\
yield from self._dmail_engine.publish_dmail_site(private_key, dms)
if log.isEnabledFor(logging.INFO):
log.info("Republished Dmail site with [{}] storing nodes."\
.format(storing_nodes))
def generate_target(self):
target = os.urandom(chord.NODE_ID_BYTES)
if log.isEnabledFor(logging.INFO):
log.info("dmail target=[{}].".format(mbase32.encode(target)))
self.root["target"] = mbase32.encode(target)
def _fetch_dmail(handler, dmail_addr, dmail_key):
de =\
dmail.DmailEngine(handler.node.chord_engine.tasks, handler.node.db)
if log.isEnabledFor(logging.INFO):
dmail_key_enc = mbase32.encode(dmail_key)
dmail_addr_enc = mbase32.encode(dmail_addr)
log.info("Fetching dmail (key=[{}]) for address=[{}]."\
.format(dmail_key_enc, dmail_addr_enc))
dmail_address = yield from _load_dmail_address(handler, dmail_addr)
dmail_key_obj = dmail_address.keys[0]
target_key = dmail_key_obj.target_key
x_bin = dmail_key_obj.x
l, x = sshtype.parseMpint(x_bin)
dm, valid_sig =\
yield from de.fetch_dmail(bytes(dmail_key), x, target_key)
if not dm:
handler._send_partial_content(\
"Dmail for key [{}] was not found."\
.format(dmail_key_enc))
return None, None
return dm, valid_sig
def generate_target(self):
target = os.urandom(chord.NODE_ID_BYTES)
if log.isEnabledFor(logging.INFO):
log.info("dmail target=[{}].".format(mbase32.encode(target)))
self.root["target"] = mbase32.encode(target)
def _dmail_auto_publish(self, dmail_address):
data_rw = yield from self.engine.tasks.send_get_data(\
dmail_address.site_key, retry_factor=100)
if data_rw.data:
if log.isEnabledFor(logging.DEBUG):
log.debug("Succeeded in fetching dmail site [{}]; won't"\
" auto-publish."\
.format(mbase32.encode(dmail_address.site_key)))
return
if log.isEnabledFor(logging.INFO):
log.info("Failed to fetch dmail site [{}]; republishing."\
.format(mbase32.encode(dmail_address.site_key)))
private_key = rsakey.RsaKey(privdata=dmail_address.site_privatekey)
dh = dhgroup14.DhGroup14()
dh.x = sshtype.parseMpint(dmail_address.keys[0].x)[1]
dh.generate_e()
dms = dmail.DmailSite()
root = dms.root
root["ssm"] = "mdh-v1"
root["sse"] = base58.encode(sshtype.encodeMpint(dh.e))
root["target"] =\
mbase32.encode(dmail_address.keys[0].target_key)
root["difficulty"] = int(dmail_address.keys[0].difficulty)
storing_nodes =\
yield from self._dmail_engine.publish_dmail_site(private_key, dms)
if log.isEnabledFor(logging.INFO):
log.info("Republished Dmail site with [{}] storing nodes."\
.format(storing_nodes))
def fetch_dmail(self, key, x=None, target_key=None):
data_rw = yield from self.task_engine.send_get_targeted_data(key)
data = data_rw.data
if not data:
return None, None
if not x:
return data, None
tb = mp.TargetedBlock(data)
if target_key:
if tb.target_key != target_key:
tb_tid_enc = mbase32.encode(tb.target_key)
tid_enc = mbase32.encode(target_key)
raise DmailException(\
"TargetedBlock->target_key [{}] does not match request"\
" [{}]."\
.format(tb_tid_enc, tid_enc))
dw = DmailWrapper(tb.buf, mp.TargetedBlock.BLOCK_OFFSET)
if dw.ssm != "mdh-v1":
raise DmailException(\
"Unrecognized key exchange method in dmail [{}]."\
.format(dw.ssm))
kex = dhgroup14.DhGroup14()
kex.x = x
kex.generate_e()
kex.f = dw.ssf
if dw.sse != kex.e:
raise DmailException(\
"Dmail [{}] is encrypted with a different e [{}] than"\
" the specified x resulted in [{}]."\
.format(mbase32.encode(data_rw.data_key), dw.sse, kex.e))
kex.calculate_k()
key = self._generate_encryption_key(tb.target_key, kex.k)
data = enc.decrypt_data_block(dw.data_enc, key)
if not data:
raise DmailException("Dmail data was empty.")
dmail = Dmail(data, 0, dw.data_len)
if dw.signature:
signature = dw.signature
pubkey = rsakey.RsaKey(dmail.sender_pubkey)
valid_sig = pubkey.verify_rsassa_pss_sig(dw.data_enc, signature)
return dmail, valid_sig
else:
return dmail, False
def __fetch_hash_tree_ref(self, data_key, depth, position, retry=None):
if not retry:
data_rw = yield from self.engine.tasks.send_get_data(data_key)
else:
data_rw = yield from self.engine.tasks.send_get_data(data_key, retry_factor=retry[3] * 10)
self._task_semaphore.release()
if self._abort:
return
if not data_rw.data:
# Fetch failed.
if retry:
retry[3] += 1 # Tries.
if retry[3] >= 32:
if log.isEnabledFor(logging.INFO):
log.info("Block id [{}] failed too much; aborting.".format(mbase32.encode(data_key)))
self._do_abort()
return
else:
retry = [depth, position, data_key, 1]
self._failed.append(retry)
if log.isEnabledFor(logging.INFO):
log.info("Block id [{}] failed, retrying (tries=[{}]).".format(mbase32.encode(data_key), retry[3]))
if self.ordered:
# This very fetch is probably blocking future ones so retry
# immediately!
self._schedule_retry()
else:
if retry:
if log.isEnabledFor(logging.INFO):
log.info("Succeeded with retry [{}] on try [{}].".format(mbase32.encode(data_key), retry[3]))
if self.ordered:
if position != self._next_position:
waiter = asyncio.futures.Future(loop=self.engine.loop)
yield from self.__wait(position, waiter)
if not depth:
r = self.data_callback.notify_data(position, data_rw.data)
if not r:
if log.isEnabledFor(logging.DEBUG):
log.debug("Received cancel signal; aborting download.")
self._do_abort()
return
self.__notify_position_complete(position + len(data_rw.data))
else:
yield from self._fetch_hash_tree_refs(data_rw.data, 0, depth, position)
self._task_cnt -= 1
if self._task_cnt <= 0:
assert self._task_cnt == 0
self._tasks_done.set()
def scan_dmail_address(self, addr, significant_bits, key_callback=None):
if log.isEnabledFor(logging.INFO):
log.info("Scanning dmail [{}].".format(mbase32.encode(addr)))
def dbcall():
with self.db.open_session() as sess:
q = sess.query(db.DmailAddress)\
.filter(db.DmailAddress.site_key == addr)
dmail_address = q.first()
if dmail_address:
dmail_address.keys
sess.expunge_all()
return dmail_address
dmail_address = yield from self.loop.run_in_executor(None, dbcall)
if dmail_address:
log.info("Found DmailAddress locally, using local settings.")
target = dmail_address.keys[0].target_key
significant_bits = dmail_address.keys[0].difficulty
else:
log.info("DmailAddress not found locally, fetching settings from"\
" the network.")
addr, dsite = yield from\
self.fetch_recipient_dmail_site(addr, significant_bits)
if not dsite:
raise DmailException("Dmail site not found.")
target = dsite.root["target"]
significant_bits = dsite.root["difficulty"]
target = mbase32.decode(target)
start = target
while True:
data_rw = yield from self.task_engine.send_find_key(\
start, target_key=target, significant_bits=significant_bits,\
retry_factor=100)
key = data_rw.data_key
if not key:
break
if log.isEnabledFor(logging.INFO):
log.info("Found dmail key: [{}].".format(mbase32.encode(key)))
if key_callback:
key_callback(key)
start = key
def _send_get_data(data_key, significant_bits, path, data_rw):
if log.isEnabledFor(logging.DEBUG):
log.debug(\
"Sending GetData: key=[{}], significant_bits=[{}], path=[{}]."\
.format(mbase32.encode(data_key), significant_bits, path))
try:
if significant_bits:
future = asyncio.async(\
node.chord_engine.tasks.send_find_key(\
data_key, significant_bits),
loop=node.loop)
yield from asyncio.wait_for(future, 15.0, loop=node.loop)
ct_data_rw = future.result()
data_key = ct_data_rw.data_key
if not data_key:
data_rw.data = b"Key Not Found"
data_rw.version = -1
data_rw.data_queue.put(None)
return
if log.isEnabledFor(logging.INFO):
log.info("Found key=[{}].".format(mbase32.encode(data_key)))
data_rw.data_key = bytes(data_key)
data_rw.data_queue.put(None)
return
# future = asyncio.async(\
# node.chord_engine.tasks.send_get_data(data_key),\
# loop=node.loop)
#
# yield from asyncio.wait_for(future, 15.0, loop=node.loop)
#
# ct_data_rw = future.result()
data_callback = Downloader(data_rw)
r = yield from multipart.get_data(\
node.chord_engine, data_key, data_callback, path=path,
ordered=True)
if r is False:
raise asyncio.TimeoutError()
except asyncio.TimeoutError:
data_rw.timed_out = True
except:
log.exception("send_get_data(..)")
data_rw.exception = True
data_rw.data_queue.put(None)
def _list_dmails_for_tag(handler, addr, tag):
def dbcall():
with handler.node.db.open_session() as sess:
q = sess.query(DmailMessage)\
.filter(\
DmailMessage.address.has(DmailAddress.site_key == addr))\
.filter(DmailMessage.tags.any(DmailTag.name == tag))\
.filter(DmailMessage.hidden == False)\
.order_by(DmailMessage.read, DmailMessage.date.desc())
msgs = q.all()
sess.expunge_all()
return msgs
msgs = yield from handler.node.loop.run_in_executor(None, dbcall)
addr_enc = mbase32.encode(addr)
for msg in msgs:
key_enc = mbase32.encode(msg.data_key)
is_read = "" if msg.read else "(unread)"
subject = msg.subject
if len(subject) > 80:
subject = subject[:80] + "..."
sender_key = msg.sender_dmail_key
if sender_key:
if msg.sender_valid:
sender_key = mbase32.encode(sender_key[:32]) + "..."
else:
sender_key = """<span class="strikethrough">""" + mbase32.encode(sender_key[:32]) + "</span>..."
else:
sender_key = "Anonymous"
handler._send_partial_content(\
"""<span class="nowrap">{}: <a href="../../../../fetch/{}/{}" title="{}">{}</a> - {}</span><span class="right_text tag">{}</span><br/>"""\
.format(\
mutil.format_human_no_ms_datetime(msg.date),\
addr_enc,\
key_enc,\
# key_enc[:32],\
key_enc,
subject,\
sender_key,\
is_read))
if not msgs:
handler._send_partial_content("Mailbox is empty.")
def run(self):
self._running = True
if log.isEnabledFor(logging.INFO):
addr_enc = mbase32.encode(self.dmail_address.site_key)
log.info("DmailAutoscanProcess (addr=[{}]) running."\
.format(addr_enc))
while self._running:
new_cnt, old_cnt, err_cnt = yield from\
self.client_engine._dmail_engine.scan_and_save_new_dmails(\
self.dmail_address)
if log.isEnabledFor(logging.INFO):
log.info("Finished scanning Dmails for address [{}];"\
" new_cnt=[{}], old_cnt=[{}], err_cnt=[{}]."\
.format(addr_enc, new_cnt, old_cnt, err_cnt))
if not self.scan_interval:
self._running = False
if not self._running:
break
time_left = self.scan_interval
start = time.time()
while time_left > 0:
if log.isEnabledFor(logging.INFO):
log.info("Sleeping for [{}] seconds.".format(time_left))
self._task =\
asyncio.async(\
asyncio.sleep(time_left, loop=self.loop),\
loop=self.loop)
try:
yield from self._task
self._task = None
break
except asyncio.CancelledError:
self._task = None
if log.isEnabledFor(logging.INFO):
log.info("Woken from sleep for address [{}]."\
.format(\
mbase32.encode(self.dmail_address.site_key)))
if self._scan_now:
self._scan_now = False
break
time_left = self.scan_interval - (time.time() - start)
def run(self):
self._running = True
if log.isEnabledFor(logging.INFO):
addr_enc = mbase32.encode(self.dmail_address.site_key)
log.info("DmailAutoscanProcess (addr=[{}]) running."\
.format(addr_enc))
while self._running:
new_cnt, old_cnt, err_cnt = yield from\
self.client_engine._dmail_engine.scan_and_save_new_dmails(\
self.dmail_address)
if log.isEnabledFor(logging.INFO):
log.info("Finished scanning Dmails for address [{}];"\
" new_cnt=[{}], old_cnt=[{}], err_cnt=[{}]."\
.format(addr_enc, new_cnt, old_cnt, err_cnt))
if not self.scan_interval:
self._running = False
if not self._running:
break
time_left = self.scan_interval
start = time.time()
while time_left > 0:
if log.isEnabledFor(logging.INFO):
log.info("Sleeping for [{}] seconds.".format(time_left))
self._task =\
asyncio.async(asyncio.sleep(time_left), loop=self.loop)
try:
yield from self._task
self._task = None
break
except asyncio.CancelledError:
self._task = None
if log.isEnabledFor(logging.INFO):
log.info("Woken from sleep for address [{}]."\
.format(\
mbase32.encode(self.dmail_address.site_key)))
if self._scan_now:
self._scan_now = False
break
time_left = self.scan_interval - (time.time() - start)
def fetch_recipient_dmail_sites(self, recipients):
robjs = []
for entry in recipients:
if type(entry) in (tuple, list):
recipient_enc, recipient, significant_bits = entry
if significant_bits:
data_rw = yield from self.task_engine.send_find_key(\
recipient, significant_bits=significant_bits)
recipient = bytes(data_rw.data_key)
if not recipient:
log.info("Failed to find key for prefix [{}]."\
.format(recipient_enc))
else:
recipient = entry
data_rw = yield from self.task_engine.send_get_data(recipient)
if not data_rw.data:
if log.isEnabledFor(logging.INFO):
log.info("Failed to fetch dmail site [{}]."\
.format(mbase32.encode(recipient)))
continue
site_data = data_rw.data.decode("UTF-8")
if log.isEnabledFor(logging.INFO):
log.info("site_data=[{}].".format(site_data))
robjs.append(DmailSite(site_data))
return robjs
def send_get_data(self, data_key, path=None):
data_key_enc = mbase32.encode(data_key)
if path:
cmd = "getdata {} {}".format(data_key_enc, path)
else:
cmd = "getdata {}".format(data_key_enc)
r = yield from self.send_command(cmd)
data_rw = chord_tasks.DataResponseWrapper(data_key)
p0 = r.find(b"version=[") + 9
p1 = r.find(b']', p0)
ver_str = r[p0:p1]
data_rw.version = int(ver_str) if ver_str != b"None" else None
p0 = p1 + 1
p0 = r.find(b"data:\r\n", p0) + 7
data = r[p0:-2] # -2 for the "\r\n".
#FIXME: This is ambiguous with data that == "Not found." :)
data_rw.data = data if data != b"Not found." else None
return data_rw
def fetch_recipient_dmail_site(self, addr, significant_bits=None):
if type(addr) is str:
addr, significant_bits = mutil.decode_key(addr)
elif type(addr) in (list, tuple):
addr, significant_bits = addr
else:
assert type(addr) in (bytes, bytearray)
if significant_bits:
data_rw = yield from self.task_engine.send_find_key(\
addr, significant_bits=significant_bits)
addr = bytes(data_rw.data_key)
if not addr:
log.info("Failed to find key for prefix [{}]."\
.format(recipient_enc))
return None, None
data_rw =\
yield from self.task_engine.send_get_data(addr, retry_factor=100)
if not data_rw.data:
if log.isEnabledFor(logging.INFO):
log.info("Failed to fetch dmail site [{}]."\
.format(mbase32.encode(recipient)))
return None, None
site_data = data_rw.data.decode("UTF-8")
if log.isEnabledFor(logging.INFO):
log.info("site_data=[{}].".format(site_data))
return addr, DmailSite(site_data)
def send_get_data(self, data_key, path=None):
data_key_enc = mbase32.encode(data_key)
if path:
cmd = "getdata {} {}".format(data_key_enc, path)
else:
cmd = "getdata {}".format(data_key_enc)
r = yield from self.send_command(cmd)
data_rw = chord_tasks.DataResponseWrapper(data_key)
p0 = r.find(b"version=[") + 9
p1 = r.find(b']', p0)
ver_str = r[p0:p1]
data_rw.version = int(ver_str) if ver_str != b"None" else None
p0 = p1 + 1
p0 = r.find(b"data:\r\n", p0) + 7
data = r[p0:-2] # -2 for the "\r\n".
#FIXME: This is ambiguous with data that == "Not found." :)
data_rw.data = data if data != b"Not found." else None
return data_rw
def stop(self):
if self._running:
if log.isEnabledFor(logging.INFO):
log.info("Stopping DmailAutoscanProcess (addr=[{}])."\
.format(mbase32.encode(self.dmail_address.site_key)))
self._running = False
if self._task:
self._task.cancel()
def stop(self):
if self._running:
if log.isEnabledFor(logging.INFO):
log.info("Stopping DmailAutoscanProcess (addr=[{}])."\
.format(mbase32.encode(self.dmail_address.site_key)))
self._running = False
if self._task:
self._task.cancel()
def do_stat(self, arg):
"Report the node status."
engine = self.peer.engine
self.writeln("Node:\n\tversion=[{}]\n\tid=[{}]\n\tbind_port=[{}]\n"\
"\tconnections={}"\
.format(engine.node.morphis_version,\
mbase32.encode(engine.node_id), engine._bind_port,\
len(engine.peers)))
def do_stat(self, arg):
"Report the node status."
engine = self.peer.engine
self.writeln(
"Node:\n\tid=[{}]\n\tbind_port=[{}]\n\tconnections={}".format(
mbase32.encode(engine.node_id), engine._bind_port, len(engine.peers)
)
)
def do_stat(self, arg):
"Report the node status."
engine = self.peer.engine
self.writeln("Node:\n\tversion=[{}]\n\tid=[{}]\n\tbind_port=[{}]\n"\
"\tconnections={}"\
.format(engine.node.morphis_version,\
mbase32.encode(engine.node_id), engine._bind_port,\
len(engine.peers)))
def update_scan_interval(self, interval):
if not interval:
self._running = False
if self._task:
self._task.cancel()
return
self.scan_interval = interval
if self._running:
if log.isEnabledFor(logging.INFO):
log.info("Notifying DmailAutoscanProcess (addr=[{}]) of"\
" interval change."\
.format(mbase32.encode(self.dmail_address.site_key)))
if self._task:
self._task.cancel()
else:
if log.isEnabledFor(logging.INFO):
log.info("Starting DmailAutoscanProcess (addr=[{}])."\
.format(mbase32.encode(self.dmail_address.site_key)))
asyncio.async(self.run(), loop=self.loop)
def update_scan_interval(self, interval):
if not interval:
self._running = False
if self._task:
self._task.cancel()
return
self.scan_interval = interval
if self._running:
if log.isEnabledFor(logging.INFO):
log.info("Notifying DmailAutoscanProcess (addr=[{}]) of"\
" interval change."\
.format(mbase32.encode(self.dmail_address.site_key)))
if self._task:
self._task.cancel()
else:
if log.isEnabledFor(logging.INFO):
log.info("Starting DmailAutoscanProcess (addr=[{}])."\
.format(mbase32.encode(self.dmail_address.site_key)))
asyncio. async (self.run(), loop=self.loop)
def send_get_targeted_data(self, data_key):
data_key_enc = mbase32.encode(data_key)
cmd = "gettargeteddata {}".format(data_key_enc)
r = yield from self.send_command(cmd)
data_rw = chord_tasks.DataResponseWrapper(data_key)
p0 = r.find(b"data:\r\n") + 7
data_rw.data = r[p0:-2] # -2 for the "\r\n".
return data_rw
def send_find_key(self, prefix, target_key=None, significant_bits=None):
cmd = "findkey " + mbase32.encode(prefix)
if target_key:
cmd += " " + mbase32.encode(target_key)
if significant_bits:
cmd += " " + str(significant_bits)
r = yield from self.send_command(cmd)
p0 = r.find(b"data_key=[") + 10
p1 = r.find(b']', p0)
data_key = r[p0:p1].decode()
if data_key == "None":
data_key = None
else:
data_key = mbase32.decode(data_key)
data_rw = chord_tasks.DataResponseWrapper(data_key)
return data_rw
def send_find_key(self, prefix, target_key=None, significant_bits=None):
cmd = "findkey " + mbase32.encode(prefix)
if target_key:
cmd += " " + mbase32.encode(target_key)
if significant_bits:
cmd += " " + str(significant_bits)
r = yield from self.send_command(cmd)
p0 = r.find(b"data_key=[") + 10
p1 = r.find(b']', p0)
data_key = r[p0:p1].decode()
if data_key == "None":
data_key = None
else:
data_key = mbase32.decode(data_key)
data_rw = chord_tasks.DataResponseWrapper(data_key)
return data_rw
def send_get_targeted_data(self, data_key):
data_key_enc = mbase32.encode(data_key)
cmd = "gettargeteddata {}".format(data_key_enc)
r = yield from self.send_command(cmd)
data_rw = chord_tasks.DataResponseWrapper(data_key)
p0 = r.find(b"data:\r\n") + 7
data_rw.data = r[p0:-2] # -2 for the "\r\n".
return data_rw
def _set_upload_page(content):
global static_upload_page_content, upload_page_content
upload_page_content = content
content = content.replace(\
b"${UPDATEABLE_KEY_MODE_DISPLAY}",\
b"display: none")
content = content.replace(\
b"${STATIC_MODE_DISPLAY}",\
b"")
static_upload_page_content[0] = content
static_upload_page_content[1] =\
mbase32.encode(enc.generate_ID(static_upload_page_content[0]))
def fetch_dmail(self, key, x=None, target_key=None):
"Fetch the Dmail referred to by key from the network."\
" Returns a Dmail object, not a db.DmailMessage object."
data_rw = yield from self.task_engine.send_get_targeted_data(key)
data = data_rw.data
if not data:
return None, None
if not x:
return data, None
tb = mp.TargetedBlock(data)
if target_key:
if tb.target_key != target_key:
tb_tid_enc = mbase32.encode(tb.target_key)
tid_enc = mbase32.encode(target_key)
raise DmailException(\
"TargetedBlock->target_key [{}] does not match request"\
" [{}]."\
.format(tb_tid_enc, tid_enc))
version =\
struct.unpack_from(">L", tb.buf, mp.TargetedBlock.BLOCK_OFFSET)[0]
if version == 1:
dmail, valid_sig =\
yield from self._process_dmail_v1(key, x, tb, data_rw)
else:
assert version == 2
dmail, valid_sig =\
yield from self._process_dmail_v2(key, x, tb, data_rw)
return dmail, valid_sig
def process_key(key):
nonlocal new_dmail_cnt
exists = yield from _check_have_dmail(handler, key)
key_enc = mbase32.encode(key)
if log.isEnabledFor(logging.DEBUG):
log.debug("Processing Dmail (key=[{}]).".format(key_enc))
if exists:
if log.isEnabledFor(logging.DEBUG):
log.debug("Ignoring dmail (key=[{}]) we already have."\
.format(key_enc))
return
yield from _fetch_and_save_dmail(handler, addr, key)
addr_enc = mbase32.encode(addr)
handler._send_partial_content(\
"""<a href="../../fetch/{}/{}">{}</a><br/>"""\
.format(addr_enc, key_enc, key_enc))
new_dmail_cnt += 1
def _send_content(self, content_entry, cacheable=True, content_type=None):
if type(content_entry) in (list, tuple):
content = content_entry[0]
content_id = content_entry[1]
else:
content = content_entry
cacheable = False
if not self.maalstroom_plugin_used:
content =\
content.replace(b"morphis://", self.maalstroom_url_prefix)
if cacheable and not content_id:
if callable(content):
content = content()
content_id = mbase32.encode(enc.generate_ID(content))
content_entry[1] = content_id
if cacheable and self.headers["If-None-Match"] == content_id:
cache_control = self.headers["Cache-Control"]
if cache_control != "max-age=0":
self.send_response(304)
if cache_control:
# This should only have been sent for an updateable key.
self.send_header("Cache-Control", "max-age=15, public")
else:
self.send_header("ETag", content_id)
self.send_header("Content-Length", 0)
self.end_headers()
return
if callable(content):
content = content()
self.send_response(200)
self.send_header("Content-Length", len(content))
self.send_header("Content-Type",\
"text/html" if content_type is None else content_type)
if cacheable:
self.send_header("Cache-Control", "public")
self.send_header("ETag", content_id)
else:
self._send_no_cache()
self.end_headers()
self.wfile.write(content)
return
def __find_key(rp):
# log.debug("Worker running.")
wid, prefix = rp.recv()
while True:
key = rsakey.RsaKey.generate(bits=4096)
pubkey_bytes = key.asbytes()
pubkey_hash = enc.generate_ID(pubkey_bytes)
pubkey_hash_enc = mbase32.encode(pubkey_hash)
if pubkey_hash_enc.startswith(prefix):
# if log.isEnabledFor(logging.INFO):
# log.info("Worker #{} found key.".format(wid))
rp.send(key._encode_key())
return
def do_findkey(self, arg):
"<DATA_KEY_PREFIX> [TARGET_ID] [SIGNIFICANT_BITS] search the network"
" for the given key."
args = arg.split(" ")
data_key, significant_bits = decode_key(args[0])
target_key = mbase32.decode(args[1]) if len(args) >= 2 else None
if len(args) == 3:
significant_bits = int(args[2])
start = datetime.today()
data_rw = yield from self.peer.engine.tasks.send_find_key(
data_key, significant_bits=significant_bits, target_key=target_key
)
diff = datetime.today() - start
data_key_enc = mbase32.encode(data_rw.data_key) if data_rw.data_key else None
self.writeln("data_key=[{}].".format(data_key_enc))
self.writeln("send_find_key(..) took: {}.".format(diff))
def _process_dmail_v2(self, key, x, tb, data_rw):
dw = DmailWrapper(tb.buf, mp.TargetedBlock.BLOCK_OFFSET)
if dw.ssm != "mdh-v1":
raise DmailException(\
"Unrecognized key exchange method in dmail [{}]."\
.format(dw.ssm))
# Calculate the shared secret.
kex = dhgroup14.DhGroup14()
kex.x = x
kex.generate_e()
kex.f = dw.ssf
if dw.sse != kex.e:
raise DmailException(\
"Dmail [{}] is encrypted with a different e [{}] than"\
" the specified x resulted in [{}]."\
.format(mbase32.encode(data_rw.data_key), dw.sse, kex.e))
kex.calculate_k()
# Generate the AES-256 encryption key.
key = self._generate_encryption_key(tb.target_key, kex.k)
# Decrypt the data.
data = enc.decrypt_data_block(dw.data_enc, key)
if not data:
raise DmailException("Dmail data was empty.")
dmail = Dmail(data)
if dmail.signature:
pubkey = rsakey.RsaKey(dmail.sender_pubkey)
valid_sig =\
pubkey.verify_rsassa_pss_sig(\
data[:dmail.signature_offset], dmail.signature)
return dmail, valid_sig
else:
return dmail, False
def fetch_recipient_dmail_sites(self, recipients):
robjs = []
for entry in recipients:
if type(entry) is str:
recipient, significant_bits =\
mutil.decode_key(entry)
recipient =\
(entry, bytes(recipient), significant_bits)
if type(entry) in (tuple, list):
recipient_enc, recipient, significant_bits = entry
if significant_bits:
data_rw = yield from self.task_engine.send_find_key(\
recipient, significant_bits=significant_bits)
recipient = bytes(data_rw.data_key)
if not recipient:
log.info("Failed to find key for prefix [{}]."\
.format(recipient_enc))
else:
recipient = entry
data_rw = yield from self.task_engine.send_get_data(recipient,\
retry_factor=100)
if not data_rw.data:
if log.isEnabledFor(logging.INFO):
log.info("Failed to fetch dmail site [{}]."\
.format(mbase32.encode(recipient)))
continue
site_data = data_rw.data.decode("UTF-8")
if log.isEnabledFor(logging.INFO):
log.info("site_data=[{}].".format(site_data))
robjs.append(DmailSite(site_data))
return robjs
def _format_dmail(dm, valid_sig):
from_db = type(dm) is DmailMessage
dmail_text = []
if (from_db and dm.sender_dmail_key) or (not from_db and dm.sender_pubkey):
if from_db:
sender_dmail_key = dm.sender_dmail_key
else:
sender_dmail_key = enc.generate_ID(dm.sender_pubkey)
if valid_sig:
dmail_text += "Sender Address Verified.\n\n"
else:
dmail_text += "WARNING: Sender Address Forged!\n\n"
dmail_text += "From: {}\n".format(mbase32.encode(sender_dmail_key))
dmail_text += "Subject: {}\n".format(dm.subject)
if from_db:
date_fmtted = dm.date
else:
date_fmtted = mutil.parse_iso_datetime(dm.date)
dmail_text += "Date: {}\n".format(date_fmtted)
dmail_text += '\n'
i = 0
for part in dm.parts:
dmail_text += part.data.decode()
dmail_text += '\n'
if len(dm.parts) > 1:
dmail_text += "----- ^ dmail part #{} ^ -----\n\n".format(i)
i += 1
dmail_text = ''.join(dmail_text)
return dmail_text
def do_findkey(self, arg):
"<DATA_KEY_PREFIX> [TARGET_ID] [SIGNIFICANT_BITS] search the network"
" for the given key."
args = arg.split(' ')
data_key, significant_bits = decode_key(args[0])
target_key = mbase32.decode(args[1]) if len(args) >= 2 else None
if len(args) == 3:
significant_bits = int(args[2])
start = datetime.today()
data_rw = yield from\
self.peer.engine.tasks.send_find_key(\
data_key, significant_bits=significant_bits,\
target_key=target_key)
diff = datetime.today() - start
data_key_enc =\
mbase32.encode(data_rw.data_key) if data_rw.data_key else None
self.writeln("data_key=[{}].".format(data_key_enc))
self.writeln("send_find_key(..) took: {}.".format(diff))
def scan_dmail_address(self, addr, significant_bits, key_callback=None):
addr_enc = mbase32.encode(addr)
if log.isEnabledFor(logging.INFO):
log.info("Scanning dmail [{}].".format(addr_enc))
def dbcall():
with self.db.open_session() as sess:
q = sess.query(db.DmailAddress)\
.filter(db.DmailAddress.site_key == addr)
dmail_address = q.first()
if dmail_address:
dmail_address.keys
sess.expunge_all()
return dmail_address
dmail_address = yield from self.loop.run_in_executor(None, dbcall)
if dmail_address:
log.info("Found DmailAddress locally, using local settings.")
target = dmail_address.keys[0].target_key
significant_bits = dmail_address.keys[0].difficulty
else:
log.info("DmailAddress not found locally, fetching settings from"\
" the network.")
dsites = yield from\
self.fetch_recipient_dmail_sites(\
[(addr_enc, addr, significant_bits)])
if not dsites:
raise DmailException("Dmail site not found.")
dsite = dsites[0]
target = dsite.root["target"]
significant_bits = dsite.root["difficulty"]
target = mbase32.decode(target)
start = target
while True:
data_rw = yield from self.task_engine.send_find_key(\
start, target_key=target, significant_bits=significant_bits,\
retry_factor=100)
key = data_rw.data_key
if not key:
break
if log.isEnabledFor(logging.INFO):
log.info("Found dmail key: [{}].".format(mbase32.encode(key)))
if key_callback:
key_callback(key)
start = key
def get_data(engine, data_key, data_callback, path=None, ordered=False,\
positions=None, retry_seconds=30, concurrency=64, max_link_depth=1):
assert not path or type(path) is bytes, type(path)
assert isinstance(data_callback, DataCallback), type(data_callback)
data_rw = yield from engine.tasks.send_get_data(data_key, path)
data = data_rw.data
if data is None:
data_rw = yield from engine.tasks.send_get_data(\
data_key, path, retry_factor=10)
data = data_rw.data
if data is None:
return None
if data_rw.version:
data_callback.notify_version(data_rw.version)
else:
#FIXME: Remove this from here after it is integrated into the coming
# chord_task rewrite.
# Reupload the key to keep prefix searches in the network.
r = random.randint(1, 5)
if r == 1:
asyncio.async(\
engine.tasks.send_store_key(\
data_rw.data, data_key, retry_factor=50),\
loop=engine.loop)
link_depth = 0
while True:
if not data.startswith(MorphisBlock.UUID):
data_callback.notify_size(len(data))
data_callback.notify_data(0, data)
return True
block_type = MorphisBlock.parse_block_type(data)
if block_type == BlockType.link.value:
link_depth += 1
if link_depth > max_link_depth:
if log.isEnabledFor(logging.WARNING):
log.warning(\
"Exceeded maximum link depth [{}] for key [{}]."\
.format(max_link_depth, mbase32.encode(data_key)))
return False
block = LinkBlock(data)
if block.mime_type:
data_callback.notify_mime_type(block.mime_type)
data_rw = yield from engine.tasks.send_get_data(block.destination)
data = data_rw.data
if not data:
data_rw = yield from engine.tasks.send_get_data(\
block.destination, retry_factor=10)
data = data_rw.data
if not data:
return None
continue
if block_type != BlockType.hash_tree.value:
data_callback.notify_size(len(data))
data_callback.notify_data(0, data)
return True
fetch = HashTreeFetch(\
engine, data_callback, ordered, positions, retry_seconds,\
concurrency)
r = yield from fetch.fetch(HashTreeBlock(data))
return r
def _fetch_and_save_dmail(self, dmail_message_key, dmail_address,\
address_key):
key_type = type(dmail_message_key)
if key_type is not bytes:
assert key_type is bytearray
dmail_message_key = bytes(dmail_message_key)
# Fetch the Dmail data from the network.
l, x_mpint = sshtype.parseMpint(address_key.x)
dmobj, valid_sig =\
yield from self.fetch_dmail(\
dmail_message_key, x_mpint, address_key.target_key)
if not dmobj:
if log.isEnabledFor(logging.INFO):
log.info("Dmail was not found on the network.")
return False
if dmobj.version > 1:
if dmobj.destination_addr != dmail_address.site_key:
log.warning(\
"Dmail was addressed to [{}], yet passed address was"\
" [{}]."\
.format(mbase32.encode(dmobj.destination_addr),\
mbase32.encode(dmail_address.site_key)))
sig_valid = False
# Save the Dmail to our local database.
def dbcall():
with self.db.open_session() as sess:
self.db.lock_table(sess, db.DmailMessage)
q = sess.query(func.count("*")).select_from(db.DmailMessage)\
.filter(db.DmailMessage.data_key == dmail_message_key)
if q.scalar():
return False
msg = db.DmailMessage()
msg.dmail_address_id = dmail_address.id
msg.dmail_key_id = address_key.id
msg.data_key = dmail_message_key
msg.sender_dmail_key =\
enc.generate_ID(dmobj.sender_pubkey)\
if dmobj.sender_pubkey else None
msg.sender_valid = valid_sig
msg.subject = dmobj.subject
msg.date = mutil.parse_iso_datetime(dmobj.date)
msg.hidden = False
msg.read = False
msg.deleted = False
attach_dmail_tag(sess, msg, "Inbox")
msg.parts = []
for part in dmobj.parts:
dbpart = db.DmailPart()
dbpart.mime_type = part.mime_type
dbpart.data = part.data
msg.parts.append(dbpart)
sess.add(msg)
sess.commit()
yield from self.loop.run_in_executor(None, dbcall)
if log.isEnabledFor(logging.INFO):
log.info("Dmail saved!")
return True
def __serve_get(handler, rpath, done_event):
if len(rpath) == len(s_dmail):
handler._send_content(pages.dmail_page_content)
else:
req = rpath[len(s_dmail):]
log.info("req=[{}].".format(req))
if req == "/css":
handler._send_content(\
pages.dmail_css_content, content_type="text/css")
elif req == "/address_list":
handler._send_partial_content(
pages.dmail_page_content__f1_start, True)
site_keys = yield from _list_dmail_addresses(handler)
for dbid, site_key in site_keys:
site_key_enc = mbase32.encode(site_key)
resp = """<span class="nowrap">[<a href="addr/{}">view</a>]"""\
""" {}</span><br/>"""\
.format(site_key_enc, site_key_enc)
handler._send_partial_content(resp)
handler._send_partial_content(pages.dmail_page_content__f1_end)
handler._end_partial_content()
elif req.startswith("/compose/form"):
dest_addr_enc = req[14:] if len(req) > 14 else ""
handler._send_partial_content(\
pages.dmail_compose_dmail_form_start, True)
site_keys = yield from _list_dmail_addresses(handler)
for dbid, site_key in site_keys:
site_key_enc = mbase32.encode(site_key)
sender_element = """<option value="{}">{}</option>"""\
.format(dbid, site_key_enc)
handler._send_partial_content(sender_element)
handler._send_partial_content(\
"<option value="">[Anonymous]</option>")
handler._send_partial_content(\
pages.dmail_compose_dmail_form_end.replace(\
b"${DEST_ADDR}", dest_addr_enc.encode()))
handler._end_partial_content()
elif req.startswith("/compose"):
from_addr = req[9:] if len(req) > 9 else ""
if from_addr:
iframe_src = "../compose/form/{}".format(from_addr).encode()
else:
iframe_src = "compose/form".encode()
content = pages.dmail_compose_dmail_content[0].replace(\
b"${IFRAME_SRC}", iframe_src)
handler._send_content([content, None])
elif req.startswith("/addr/view/"):
addr_enc = req[11:]
start = pages.dmail_addr_view_start.replace(\
b"${DMAIL_ADDRESS}", addr_enc.encode())
start = start.replace(\
b"${DMAIL_ADDRESS_SHORT}", addr_enc[:32].encode())
handler._send_partial_content(start, True)
handler._send_partial_content(pages.dmail_addr_view_end)
handler._end_partial_content()
elif req.startswith("/addr/settings/edit/publish?"):
query = req[28:]
qdict = urllib.parse.parse_qs(query, keep_blank_values=True)
addr_enc = qdict["dmail_address"][0]
difficulty = qdict["difficulty"][0]
def processor(dmail_address):
if difficulty != dmail_address.keys[0].difficulty:
dmail_address.keys[0].difficulty = difficulty
return True
else:
return False
dmail_address = yield from\
_process_dmail_address(\
handler, mbase32.decode(addr_enc), processor)
dh = dhgroup14.DhGroup14()
dh.x = sshtype.parseMpint(dmail_address.keys[0].x)[1]
dh.generate_e()
dms = dmail.DmailSite()
root = dms.root
root["target"] =\
mbase32.encode(dmail_address.keys[0].target_key)
root["difficulty"] = int(difficulty)
root["ssm"] = "mdh-v1"
root["sse"] = base58.encode(sshtype.encodeMpint(dh.e))
private_key = rsakey.RsaKey(privdata=dmail_address.site_privatekey)
r = yield from\
handler.node.chord_engine.tasks.send_store_updateable_key(\
dms.export(), private_key,\
version=int(time.time()*1000), store_key=True)
handler._send_content(\
pages.dmail_addr_settings_edit_success_content[0]\
.format(addr_enc, addr_enc[:32]).encode())
elif req.startswith("/addr/settings/edit/"):
addr_enc = req[20:]
dmail_address = yield from\
_load_dmail_address(handler, mbase32.decode(addr_enc))
content = pages.dmail_addr_settings_edit_content[0].replace(\
b"${DIFFICULTY}",\
str(dmail_address.keys[0].difficulty).encode())
content = content.replace(\
b"${DMAIL_ADDRESS_SHORT}", addr_enc[:32].encode())
content = content.replace(\
b"${DMAIL_ADDRESS}", addr_enc.encode())
content = content.replace(\
b"${PRIVATE_KEY}",\
base58.encode(dmail_address.site_privatekey).encode())
content = content.replace(\
b"${X}", base58.encode(dmail_address.keys[0].x).encode())
content = content.replace(\
b"${TARGET_KEY}",\
base58.encode(dmail_address.keys[0].target_key).encode())
handler._send_content([content, None])
elif req.startswith("/addr/settings/"):
addr_enc = req[15:]
content = pages.dmail_addr_settings_content[0].replace(\
b"${IFRAME_SRC}",\
"edit/{}".format(addr_enc).encode())
handler._send_content([content, None])
elif req.startswith("/addr/"):
addr_enc = req[6:]
if log.isEnabledFor(logging.INFO):
log.info("Viewing dmail address [{}].".format(addr_enc))
content = pages.dmail_address_page_content[0].replace(\
b"${IFRAME_SRC}", "view/{}".format(addr_enc).encode())
handler._send_content([content, None])
elif req.startswith("/tag/view/list/"):
params = req[15:]
p0 = params.index('/')
tag = params[:p0]
addr_enc = params[p0+1:]
if log.isEnabledFor(logging.INFO):
log.info("Viewing dmails with tag [{}] for address [{}]."\
.format(tag, addr_enc))
start = pages.dmail_tag_view_list_start.replace(\
b"${TAG_NAME}", tag.encode())
#FIXME: This is getting inefficient now, maybe time for Flask or
# something like it. Maybe we can use just it's template renderer.
start = start.replace(b"${DMAIL_ADDRESS}", addr_enc.encode())
start = start.replace(\
b"${DMAIL_ADDRESS2}",\
"{}...".format(addr_enc[:32]).encode())
handler._send_partial_content(start, True)
yield from\
_list_dmails_for_tag(handler, mbase32.decode(addr_enc), tag)
handler._send_partial_content(pages.dmail_tag_view_list_end)
handler._end_partial_content()
elif req.startswith("/tag/view/"):
params = req[10:]
content = pages.dmail_tag_view_content[0].replace(\
b"${IFRAME_SRC}", "../list/{}".format(params).encode())
handler._send_content(content)
elif req.startswith("/scan/list/"):
addr_enc = req[11:]
if log.isEnabledFor(logging.INFO):
log.info("Viewing inbox for dmail address [{}]."\
.format(addr_enc))
start = pages.dmail_inbox_start.replace(\
b"${DMAIL_ADDRESS}", addr_enc.encode())
start = start.replace(\
b"${DMAIL_ADDRESS2}", "{}...".format(addr_enc[:32]).encode())
handler._send_partial_content(start, True)
addr, significant_bits = mutil.decode_key(addr_enc)
yield from _scan_new_dmails(handler, addr, significant_bits)
handler._send_partial_content(pages.dmail_inbox_end)
handler._end_partial_content()
elif req.startswith("/scan/"):
addr_enc = req[6:]
content = pages.dmail_address_page_content[0].replace(\
b"${IFRAME_SRC}", "list/{}".format(addr_enc).encode())
handler._send_content([content, None])
elif req.startswith("/fetch/view/"):
keys = req[12:]
p0 = keys.index('/')
dmail_addr_enc = keys[:p0]
dmail_key_enc = keys[p0+1:]
dmail_addr = mbase32.decode(dmail_addr_enc)
dmail_key = mbase32.decode(dmail_key_enc)
dm = yield from _load_dmail(handler, dmail_key)
if dm:
valid_sig = dm.sender_valid
else:
dm, valid_sig =\
yield from _fetch_dmail(handler, dmail_addr, dmail_key)
dmail_text = _format_dmail(dm, valid_sig)
handler._send_content(\
dmail_text.encode(), content_type="text/plain")
elif req.startswith("/fetch/panel/mark_as_read/"):
req_data = req[26:]
p0 = req_data.index('/')
dmail_key_enc = req_data[p0+1:]
dmail_key = mbase32.decode(dmail_key_enc)
def processor(dmail):
dmail.read = not dmail.read
return True
yield from _process_dmail_message(handler, dmail_key, processor)
handler._send_204()
elif req.startswith("/fetch/panel/trash/"):
req_data = req[20:]
p0 = req_data.index('/')
dmail_key_enc = req_data[p0+1:]
dmail_key = mbase32.decode(dmail_key_enc)
def processor(dmail):
dmail.hidden = not dmail.hidden
return True
yield from _process_dmail_message(handler, dmail_key, processor)
handler._send_204()
elif req.startswith("/fetch/panel/"):
req_data = req[13:]
content = pages.dmail_fetch_panel_content[0].replace(\
b"${DMAIL_IDS}", req_data.encode())
handler._send_content([content, None])
elif req.startswith("/fetch/wrapper/"):
req_data = req[15:]
content = pages.dmail_fetch_wrapper[0].replace(\
b"${IFRAME_SRC}",\
"../../view/{}"\
.format(req_data).encode())
#FIXME: This is getting inefficient now, maybe time for Flask or
# something like it. Maybe we can use just it's template renderer.
content = content.replace(\
b"${IFRAME2_SRC}",\
"../../panel/{}"\
.format(req_data).encode())
handler._send_content([content, None])
elif req.startswith("/fetch/"):
req_data = req[7:]
content = pages.dmail_address_page_content[0].replace(\
b"${IFRAME_SRC}", "../wrapper/{}".format(req_data).encode())
handler._send_content([content, None])
elif req == "/create_address":
handler._send_content(pages.dmail_create_address_content)
elif req == "/create_address/form":
handler._send_content(pages.dmail_create_address_form_content)
elif req.startswith("/create_address/make_it_so?"):
query = req[27:]
qdict = urllib.parse.parse_qs(query, keep_blank_values=True)
prefix = qdict["prefix"][0]
difficulty = int(qdict["difficulty"][0])
log.info("prefix=[{}].".format(prefix))
privkey, dmail_key, dms =\
yield from _create_dmail_address(handler, prefix, difficulty)
dmail_key_enc = mbase32.encode(dmail_key)
handler._send_partial_content(pages.dmail_frame_start, True)
handler._send_partial_content(b"SUCCESS<br/>")
handler._send_partial_content(\
"""<p>New dmail address: <a href="../addr/{}">{}</a></p>"""\
.format(dmail_key_enc, dmail_key_enc).encode())
handler._send_partial_content(pages.dmail_frame_end)
handler._end_partial_content()
else:
handler._handle_error()
def send_content(self, content_entry, cacheable=True, content_type=None,\
charset=None):
if type(content_entry) in (list, tuple):
content = content_entry[0]
content_id = content_entry[1]
if len(content_entry) == 3 and not content_type:
content_type = content_entry[2]
else:
content = content_entry
cacheable = False
if not content_type:
if not charset:
charset = self.get_accept_charset()
content_type = "text/html; charset={}".format(charset)
if type(content) is str:
if charset:
content = content.encode(charset)
else:
content = content.encode()
if not self.handler.maalstroom_plugin_used:
content =\
content.replace(\
b"morphis://", self.handler.maalstroom_url_prefix)
if cacheable and not content_id:
if callable(content):
content = content()
log.info("Generating content_id.")
content_id = mbase32.encode(enc.generate_ID(content))
content_entry[1] = content_id
etag = self.handler.headers["If-None-Match"]
if cacheable and etag == content_id:
# #TODO: Consider getting rid of this updateablekey support here
# # because we don't send updateable keys this way ever.
# updateable_key = etag.startswith("updateablekey-")
cache_control = self.handler.headers["Cache-Control"]
# if not (updateable_key and cache_control == "max-age=0")\
# and cache_control != "no-cache":
if cache_control != "no-cache":
self.send_response(304)
# if updateable_key:
# p0 = etag.index('-')
# p1 = etag.index('-', p0 + 1)
# version = etag[p0:p1]
# self.send_header(\
# "X-Maalstroom-UpdateableKey-Version",\
# version)
# self.send_header("Cache-Control", "public,max-age=15")
# else:
self.send_header("Cache-Control", "public,max-age=300")
self.send_header("ETag", content_id)
self.send_header("Content-Length", 0)
self.end_headers()
self.finish_response()
return
if callable(content):
content = content()
self.send_response(200)
self.send_header("Content-Length", len(content))
self.send_header("Content-Type", content_type)
if cacheable:
self.send_header("Cache-Control", "public,max-age=300")
self.send_header("ETag", content_id)
else:
self._send_no_cache()
self.end_headers()
self.write(content)
self.finish_response()
return
def dispatch_get_data(self, rpath):
orig_etag = etag = self.handler.headers["If-None-Match"]
if etag:
updateable_key = etag.startswith("updateablekey-")
if updateable_key:
p0 = etag.index('-') + 1
p1 = etag.find('-', p0)
if p1 != -1:
version_from_etag = etag[p0:p1]
etag = etag[p1 + 1:]
else:
version_from_etag = None
etag = etag[p0:]
else:
updateable_key = False
if etag == rpath:
# If browser has it cached.
cache_control = self.handler.headers["Cache-Control"]
if not (updateable_key and cache_control == "max-age=0")\
and cache_control != "no-cache":
self.send_response(304)
if updateable_key:
if version_from_etag:
self.send_header(\
"X-Maalstroom-UpdateableKey-Version",\
version_from_etag)
self.send_header("Cache-Control", "public,max-age=15")
self.send_header("ETag", orig_etag)
else:
self.send_header(\
"Cache-Control", "public,max-age=315360000")
self.send_header("ETag", rpath)
self.send_header("Content-Length", 0)
self.end_headers()
self.finish_response()
return
if not self.connection_count:
self.send_error("No connected nodes; cannot fetch from the"\
" network.")
return
path_sep_idx = rpath.find('/')
if path_sep_idx != -1:
path = rpath[path_sep_idx + 1:].encode()
rpath = rpath[:path_sep_idx]
else:
path = None
if not rpath:
msg = "Empty key was specified."
log.warning(msg)
self.send_error(msg, 400)
return
try:
data_key, significant_bits = mutil.decode_key(rpath)
except (ValueError, IndexError) as e:
log.exception("mutil.decode_key(..), rpath=[{}].".format(rpath))
self.send_error("Invalid encoded key: [{}].".format(rpath), 400)
return
if significant_bits:
# Resolve key via send_find_key.
if significant_bits < 32:
log.warning("Request supplied key with too few bits [{}]."\
.format(significant_bits))
self.send_error(\
"Key must have at least 32 bits or 7 characters,"\
" len(key)=[{}].".format(len(rpath)), 400)
return
try:
data_rw =\
yield from asyncio.wait_for(\
self.node.chord_engine.tasks.send_find_key(\
data_key, significant_bits),\
15.0,\
loop=self.loop)
data_key = data_rw.data_key
except asyncio.TimeoutError:
data_key = None
if not data_key:
self.send_error(b"Key Not Found", errcode=404)
return
if log.isEnabledFor(logging.INFO):
log.info("Found key=[{}].".format(mbase32.encode(data_key)))
key_enc = mbase32.encode(data_rw.data_key)
if path:
url = "{}{}/{}"\
.format(\
self.handler.maalstroom_url_prefix_str,\
key_enc,\
path.decode("UTF-8"))
else:
url = "{}{}"\
.format(\
self.handler.maalstroom_url_prefix_str,\
key_enc)
message = "<html><head><title>Redirecting to Full Key</title>"\
"</head><body><a href=\"{}\">{}</a>\n{}</body></html>"\
.format(url, url, key_enc).encode()
self.send_301(url, message)
return
if log.isEnabledFor(logging.DEBUG):
log.debug("Sending GetData: key=[{}], path=[{}]."\
.format(mbase32.encode(data_key), significant_bits, path))
queue = asyncio.Queue(loop=self.loop)
# Start the download.
try:
data_callback = Downloader(self, queue)
@asyncio.coroutine
def call_wrapper():
try:
yield from multipart.get_data(\
self.node.chord_engine, data_key, data_callback,\
path=path, ordered=True)
except Exception as e:
log.exception("multipart.get_data(..)")
data_callback.exception = e
data_callback.notify_finished(False)
asyncio. async (call_wrapper(), loop=self.loop)
except Exception as e:
log.exception("send_get_data(..)")
self.send_exception(e)
return
log.debug("Waiting for first data.")
#TODO: This can be improved. Right now it causes the response to wait
# for the first block of data to be fetched (which could be after a
# few hash blocks are fetched) before it allows us to send the headers.
# This would cause the browser to report the size rigth away instead of
# seeming to take longer. It would require the response to be always be
# chunked as we don't know until we get that first data if we are going
# to rewrite or not. Such improvement wouldn't increase the speed or
# anything so it can wait as it is only cosmetic likely.
data = yield from queue.get()
if data:
if data is Error:
self.send_exception(data_callback.exception)
self.send_response(200)
rewrite_urls = False
if data_callback.mime_type:
self.send_header("Content-Type", data_callback.mime_type)
if data_callback.mime_type\
in ("text/html", "text/css", "application/javascript"):
rewrite_urls = True
else:
dh = data[:160]
if dh[0] == 0xFF and dh[1] == 0xD8:
self.send_header("Content-Type", "image/jpg")
elif dh[0] == 0x89 and dh[1:4] == b"PNG":
self.send_header("Content-Type", "image/png")
elif dh[:5] == b"GIF89":
self.send_header("Content-Type", "image/gif")
elif dh[:5] == b"/*CSS":
self.send_header("Content-Type", "text/css")
rewrite_urls = True
elif dh[:12] == b"/*JAVASCRIPT":
self.send_header("Content-Type", "application/javascript")
rewrite_urls = True
elif dh[:8] == bytes(\
[0x00, 0x00, 0x00, 0x18, 0x66, 0x74, 0x79, 0x70])\
or dh[:8] == bytes(\
[0x00, 0x00, 0x00, 0x1c, 0x66, 0x74, 0x79, 0x70]):
self.send_header("Content-Type", "video/mp4")
elif dh[:8] == bytes(\
[0x50, 0x4b, 0x03, 0x04, 0x0a, 0x00, 0x00, 0x00]):
self.send_header("Content-Type", "application/zip")
elif dh[:5] == bytes(\
[0x25, 0x50, 0x44, 0x46, 0x2d]):
self.send_header("Content-Type", "application/pdf")
elif dh[:4] == b"RIFF" and dh[8:11] == b"AVI":
self.send_header("Content-Type", "video/avi")
else:
dhl = dh.lower()
if (dhl.find(b"<html") > -1 or dhl.find(b"<HTML>") > -1)\
and (dhl.find(b"<head>") > -1\
or dhl.find(b"<HEAD") > -1):
self.send_header("Content-Type", "text/html")
rewrite_urls = True
else:
self.send_header(\
"Content-Type", "application/octet-stream")
rewrite_urls = rewrite_urls\
and not self.handler.maalstroom_plugin_used
if rewrite_urls:
self.send_header("Transfer-Encoding", "chunked")
else:
self.send_header("Content-Length", data_callback.size)
if data_callback.version is not None:
self.send_header(\
"X-Maalstroom-UpdateableKey-Version",\
data_callback.version)
self.send_header("Cache-Control", "public,max-age=15")
self.send_header(\
"ETag",\
"updateablekey-" + str(data_callback.version) + '-'\
+ rpath)
else:
self.send_header("Cache-Control", "public,max-age=315360000")
self.send_header("ETag", rpath)
self.end_headers()
while True:
if rewrite_urls:
self.send_partial_content(data)
else:
self.write(data)
data = yield from queue.get()
if data is None:
if rewrite_urls:
self.end_partial_content()
else:
self.finish_response()
break
elif data is Error:
if rewrite_urls:
self._fail_partial_content()
else:
self.close()
break
if self._abort_event.is_set():
if log.isEnabledFor(logging.INFO):
log.info(\
"Maalstroom request got broken pipe from HTTP"\
" side; cancelling.")
data_callback.abort = True
break
else:
self.send_error(b"Data not found on network.", 404)
def __fetch_hash_tree_ref(self, data_key, depth, position, retry=None):
if not retry:
data_rw = yield from self.engine.tasks.send_get_data(data_key)
else:
data_rw = yield from self.engine.tasks.send_get_data(\
data_key, retry_factor=retry[3] * 10)
self._task_semaphore.release()
if self._abort:
return
if not data_rw.data:
# Fetch failed.
if retry:
retry[3] += 1 # Tries.
if retry[3] >= 32:
if log.isEnabledFor(logging.INFO):
log.info("Block id [{}] failed too much; aborting."\
.format(mbase32.encode(data_key)))
self._do_abort()
return
else:
retry = [depth, position, data_key, 1]
self._failed.append(retry)
if log.isEnabledFor(logging.INFO):
log.info("Block id [{}] failed, retrying (tries=[{}])."\
.format(mbase32.encode(data_key), retry[3]))
if self.ordered:
# This very fetch is probably blocking future ones so retry
# immediately!
self._schedule_retry()
else:
if retry:
if log.isEnabledFor(logging.INFO):
log.info("Succeeded with retry [{}] on try [{}]."\
.format(mbase32.encode(data_key), retry[3]))
if self.ordered:
if position != self._next_position:
waiter = asyncio.futures.Future(loop=self.engine.loop)
yield from self.__wait(position, waiter)
if not depth:
r = self.data_callback.notify_data(position, data_rw.data)
if not r:
if log.isEnabledFor(logging.DEBUG):
log.debug("Received cancel signal; aborting download.")
self._do_abort()
return
self.__notify_position_complete(position + len(data_rw.data))
else:
yield from\
self._fetch_hash_tree_refs(\
data_rw.data, 0, depth, position)
self._task_cnt -= 1
if self._task_cnt <= 0:
assert self._task_cnt == 0
self._tasks_done.set()
def __main():
global loop
log.info("mcc running.")
parser = argparse.ArgumentParser()
parser.add_argument(\
"--address",\
help="The address of the Morphis node to connect to.",\
default="127.0.0.1:4250")
parser.add_argument(\
"--create-dmail",\
help="Generate and upload a new dmail site.",\
action="store_true")
parser.add_argument(\
"--dburl",\
help="Specify the database url to use.")
parser.add_argument(\
"--fetch-dmail",
help="Fetch dmail for specified key_id.")
parser.add_argument(\
"-i",\
help="Read file as stdin.")
parser.add_argument("--nn", type=int,\
help="Node instance number.")
parser.add_argument(\
"--prefix",\
help="Specify the prefix for various things (currently --create-dmail"\
").")
parser.add_argument(\
"--scan-dmail",\
help="Scan the network for available dmails.")
parser.add_argument(\
"--send-dmail",\
help="Send stdin as a dmail with the specified subject. The"\
" sender and recipients may be specified at the beginning of the"\
" data as with email headers: 'from: ' and 'to: '.")
parser.add_argument(\
"--stat",\
help="Report node status.",\
action="store_true")
parser.add_argument("-l", dest="logconf",\
help="Specify alternate logging.ini [IF SPECIFIED, THIS MUST BE THE"\
" FIRST PARAMETER!].")
parser.add_argument(\
"--dmail-target",\
help="Specify the dmail target to validate dmail against.")
parser.add_argument(\
"-x",\
help="Specify the x (Diffie-Hellman private secret) to use.")
args = parser.parse_args()
# Load or generate client mcc key.
key_filename = "data/mcc_key-rsa.mnk"
if os.path.exists(key_filename):
log.info("mcc private key file found, loading.")
client_key = rsakey.RsaKey(filename=key_filename)
else:
log.info("mcc private key file missing, generating.")
client_key = rsakey.RsaKey.generate(bits=4096)
client_key.write_private_key_file(key_filename)
# Connect a Morphis Client (lightweight Node) instance.
mc = client.Client(loop, client_key=client_key, address=args.address)
r = yield from mc.connect()
if not r:
log.warning("Connection failed; exiting.")
loop.stop()
return
dbase = init_db(args)
de = dmail.DmailEngine(mc, dbase)
log.info("Processing command requests...")
if args.stat:
r = yield from mc.send_command("stat")
print(r.decode("UTF-8"), end='')
if args.create_dmail:
log.info("Creating and uploading dmail site.")
privkey, data_key, dms =\
yield from de.generate_dmail_address(args.prefix)
print("privkey: {}".format(base58.encode(privkey._encode_key())))
print("x: {}".format(base58.encode(sshtype.encodeMpint(dms.dh.x))))
print("dmail address: {}".format(mbase32.encode(data_key)))
if args.send_dmail:
log.info("Sending dmail.")
if args.i:
with open(args.i, "rb") as fh:
dmail_data = fh.read().decode()
else:
dmail_data = stdin.read()
if log.isEnabledFor(logging.DEBUG):
log.debug("dmail_data=[{}].".format(dmail_data))
yield from de.send_dmail_text(args.send_dmail, dmail_data)
if args.scan_dmail:
log.info("Scanning dmail address.")
addr, sig_bits = mutil.decode_key(args.scan_dmail)
def key_callback(key):
print("dmail key: [{}].".format(mbase32.encode(key)))
yield from de.scan_dmail_address(\
addr, sig_bits, key_callback=key_callback)
if args.fetch_dmail:
log.info("Fetching dmail for key=[{}].".format(args.fetch_dmail))
key = mbase32.decode(args.fetch_dmail)
if args.x:
l, x_int = sshtype.parseMpint(base58.decode(args.x))
else:
x_int = None
dmail_target = args.dmail_target
dm, valid_sig = yield from de.fetch_dmail(key, x_int, dmail_target)
if not dm:
raise Exception("No dmail found.")
if not x_int:
print("Encrypted dmail data=[\n{}].".format(mutil.hex_dump(dm)))
else:
print("Subject: {}\n".format(dm.subject))
if dm.sender_pubkey:
print("From: {}"\
.format(mbase32.encode(enc.generate_ID(dm.sender_pubkey))))
i = 0
for part in dm.parts:
print("DmailPart[{}]:\n mime-type=[{}]\n data=[{}]\n"\
.format(i, part.mime_type, part.data))
i += 1
log.info("Disconnecting.")
yield from mc.disconnect()
loop.stop()
def key_callback(data_key):
self.writeln("data_key=[{}].".format(mbase32.encode(data_key)))
def get_data(engine, data_key, data_callback, path=None, ordered=False,\
positions=None, retry_seconds=30, concurrency=64, max_link_depth=1):
assert not path or type(path) is bytes, type(path)
assert isinstance(data_callback, DataCallback), type(data_callback)
data_rw = yield from engine.tasks.send_get_data(data_key, path)
data = data_rw.data
if data is None:
data_rw = yield from engine.tasks.send_get_data(\
data_key, path, retry_factor=10)
data = data_rw.data
if data is None:
return None
if data_rw.version:
data_callback.notify_version(data_rw.version)
else:
#FIXME: Remove this from here after it is integrated into the coming
# chord_task rewrite.
# Reupload the key to keep prefix searches in the network.
r = random.randint(1, 5)
if r == 1:
asyncio.async(\
engine.tasks.send_store_key(\
data_rw.data, data_key, retry_factor=50),\
loop=engine.loop)
link_depth = 0
while True:
if not data.startswith(MorphisBlock.UUID):
data_callback.notify_size(len(data))
data_callback.notify_data(0, data)
data_callback.notify_finished(True)
return True
block_type = MorphisBlock.parse_block_type(data)
if block_type == BlockType.link.value:
link_depth += 1
if link_depth > max_link_depth:
if log.isEnabledFor(logging.WARNING):
log.warning(\
"Exceeded maximum link depth [{}] for key [{}]."\
.format(max_link_depth, mbase32.encode(data_key)))
return False
block = LinkBlock(data)
if block.mime_type:
data_callback.notify_mime_type(block.mime_type)
data_rw = yield from engine.tasks.send_get_data(block.destination)
data = data_rw.data
if data is None:
data_rw = yield from engine.tasks.send_get_data(\
block.destination, retry_factor=10)
data = data_rw.data
if data is None:
return None
continue
if block_type != BlockType.hash_tree.value:
data_callback.notify_size(len(data))
data_callback.notify_data(0, data)
data_callback.notify_finished(True)
return True
fetch = HashTreeFetch(\
engine, data_callback, ordered, positions, retry_seconds,\
concurrency)
r = yield from fetch.fetch(HashTreeBlock(data))
data_callback.notify_finished(r)
return r
def __main():
global loop
log.info("mcc running.")
parser = argparse.ArgumentParser()
parser.add_argument(\
"--address",\
help="The address of the Morphis node to connect to.",\
default="127.0.0.1:4250")
parser.add_argument(\
"--create-dmail",\
help="Generate and upload a new dmail site.",\
action="store_true")
parser.add_argument(\
"--dburl",\
help="Specify the database url to use.")
parser.add_argument(\
"--fetch-dmail",
help="Fetch dmail for specified key_id.")
parser.add_argument(\
"-i",\
help="Read file as stdin.")
parser.add_argument("--nn", type=int,\
help="Node instance number.")
parser.add_argument(\
"--prefix",\
help="Specify the prefix for various things (currently --create-dmail"\
").")
parser.add_argument(\
"--scan-dmail",\
help="Scan the network for available dmails.")
parser.add_argument(\
"--send-dmail",\
help="Send stdin as a dmail with the specified subject. The"\
" sender and recipients may be specified at the beginning of the"\
" data as with email headers: 'from: ' and 'to: '.")
parser.add_argument(\
"--stat",\
help="Report node status.",\
action="store_true")
parser.add_argument("-l", dest="logconf",\
help="Specify alternate logging.ini [IF SPECIFIED, THIS MUST BE THE"\
" FIRST PARAMETER!].")
parser.add_argument(\
"--dmail-target",\
help="Specify the dmail target to validate dmail against.")
parser.add_argument(\
"-x",\
help="Specify the x (Diffie-Hellman private secret) to use.")
args = parser.parse_args()
# Load or generate client mcc key.
key_filename = "data/mcc_key-rsa.mnk"
if os.path.exists(key_filename):
log.info("mcc private key file found, loading.")
client_key = rsakey.RsaKey(filename=key_filename)
else:
log.info("mcc private key file missing, generating.")
client_key = rsakey.RsaKey.generate(bits=4096)
client_key.write_private_key_file(key_filename)
# Connect a Morphis Client (lightweight Node) instance.
mc = client.Client(loop, client_key=client_key, address=args.address)
r = yield from mc.connect()
if not r:
log.warning("Connection failed; exiting.")
loop.stop()
return
dbase = init_db(args)
de = dmail.DmailEngine(mc, dbase)
log.info("Processing command requests...")
if args.stat:
r = yield from mc.send_command("stat")
print(r.decode("UTF-8"), end='')
if args.create_dmail:
log.info("Creating and uploading dmail site.")
privkey, data_key, dms, storing_nodes =\
yield from de.generate_dmail_address(args.prefix)
print("privkey: {}".format(base58.encode(privkey._encode_key())))
print("x: {}".format(base58.encode(sshtype.encodeMpint(dms.dh.x))))
print("dmail address: {}".format(mbase32.encode(data_key)))
print("storing_nodes=[{}]."\
.format(base58.encode(privkey._encode_key())))
if args.send_dmail:
log.info("Sending dmail.")
if args.i:
with open(args.i, "rb") as fh:
dmail_data = fh.read().decode()
else:
dmail_data = stdin.read()
if log.isEnabledFor(logging.DEBUG):
log.debug("dmail_data=[{}].".format(dmail_data))
yield from de.send_dmail_text(args.send_dmail, dmail_data)
if args.scan_dmail:
log.info("Scanning dmail address.")
addr, sig_bits = mutil.decode_key(args.scan_dmail)
def key_callback(key):
print("dmail key: [{}].".format(mbase32.encode(key)))
yield from de.scan_dmail_address(\
addr, sig_bits, key_callback=key_callback)
if args.fetch_dmail:
log.info("Fetching dmail for key=[{}].".format(args.fetch_dmail))
key = mbase32.decode(args.fetch_dmail)
if args.x:
l, x_int = sshtype.parseMpint(base58.decode(args.x))
else:
x_int = None
dmail_target = args.dmail_target
dm, valid_sig = yield from de.fetch_dmail(key, x_int, dmail_target)
if not dm:
raise Exception("No dmail found.")
if not x_int:
print("Encrypted dmail data=[\n{}].".format(mutil.hex_dump(dm)))
else:
print("Subject: {}\n".format(dm.subject))
if dm.sender_pubkey:
print("From: {}"\
.format(mbase32.encode(enc.generate_ID(dm.sender_pubkey))))
i = 0
for part in dm.parts:
print("DmailPart[{}]:\n mime-type=[{}]\n data=[{}]\n"\
.format(i, part.mime_type, part.data))
i += 1
log.info("Disconnecting.")
yield from mc.disconnect()
loop.stop()
def key_callback(key):
print("dmail key: [{}].".format(mbase32.encode(key)))
def __send_dmail(self, from_asymkey, recipient, dmail):
assert type(recipient) is DmailSite
root = recipient.root
sse = sshtype.parseMpint(base58.decode(root["sse"]))[1]
target = root["target"]
difficulty = root["difficulty"]
dh = dhgroup14.DhGroup14()
dh.generate_x()
dh.generate_e()
dh.f = sse
k = dh.calculate_k()
target_key = mbase32.decode(target)
key = self._generate_encryption_key(target_key, k)
dmail_bytes = dmail.encode()
m, r = enc.encrypt_data_block(dmail_bytes, key)
if m:
if r:
m = m + r
else:
m = r
dw = DmailWrapper()
dw.ssm = _dh_method_name
dw.sse = sse
dw.ssf = dh.e
if from_asymkey:
dw.signature = from_asymkey.calc_rsassa_pss_sig(m)
else:
dw.signature = b''
dw.data_len = len(dmail_bytes)
dw.data_enc = m
tb = mp.TargetedBlock()
tb.target_key = target_key
tb.noonce = int(0).to_bytes(64, "big")
tb.block = dw
tb_data = tb.encode()
tb_header = tb_data[:mp.TargetedBlock.BLOCK_OFFSET]
if log.isEnabledFor(logging.INFO):
log.info(\
"Attempting work on dmail (target=[{}], difficulty=[{}])."\
.format(target, difficulty))
def threadcall():
return brute.generate_targeted_block(\
target_key, difficulty, tb_header,\
mp.TargetedBlock.NOONCE_OFFSET,\
mp.TargetedBlock.NOONCE_SIZE)
noonce_bytes = yield from self.loop.run_in_executor(None, threadcall)
if log.isEnabledFor(logging.INFO):
log.info("Work found noonce [{}].".format(noonce_bytes))
mp.TargetedBlock.set_noonce(tb_data, noonce_bytes)
if log.isEnabledFor(logging.INFO):
mp.TargetedBlock.set_noonce(tb_header, noonce_bytes)
log.info("hash=[{}]."\
.format(mbase32.encode(enc.generate_ID(tb_header))))
key = None
def key_callback(val):
nonlocal key
key = val
log.info("Sending dmail to the network.")
if log.isEnabledFor(logging.DEBUG):
log.debug("dmail block data=[\n{}]."\
.format(mutil.hex_dump(tb_data)))
total_storing = 0
retry = 0
while True:
storing_nodes = yield from\
self.task_engine.send_store_targeted_data(\
tb_data, store_key=True, key_callback=key_callback,\
retry_factor=retry * 10)
total_storing += storing_nodes
if total_storing >= 3:
break
if retry > 32:
break
elif retry > 3:
yield from asyncio.sleep(1)
retry += 1
key_enc = mbase32.encode(key)
id_enc = mbase32.encode(enc.generate_ID(key))
if log.isEnabledFor(logging.INFO):
log.info("Dmail sent; key=[{}], id=[{}], storing_nodes=[{}]."\
.format(key_enc, id_enc, total_storing))
return total_storing
def scan_and_save_new_dmails(self, dmail_address):
new_dmail_cnt = 0
old_dmail_cnt = 0
err_dmail_cnt = 0
address_key = dmail_address.keys[0]
target = address_key.target_key
significant_bits = address_key.difficulty
start = target
def check_have_dmail_dbcall():
with self.db.open_session() as sess:
q = sess.query(func.count("*")).select_from(db.DmailMessage)\
.filter(db.DmailMessage.data_key == dmail_key)
if q.scalar():
return True
return False
while True:
data_rw = yield from self.task_engine.send_find_key(\
start, target_key=target, significant_bits=significant_bits,\
retry_factor=100)
start = dmail_key = data_rw.data_key
if not dmail_key:
if log.isEnabledFor(logging.INFO):
log.info("No more Dmails found for address (id=[{}])."\
.format(dmail_address.id))
break
if log.isEnabledFor(logging.INFO):
key_enc = mbase32.encode(dmail_key)
log.info("Found dmail key: [{}].".format(key_enc))
exists =\
yield from self.loop.run_in_executor(\
None, check_have_dmail_dbcall)
if exists:
if log.isEnabledFor(logging.DEBUG):
log.debug("Ignoring dmail (key=[{}]) we already have."\
.format(key_enc))
old_dmail_cnt += 1
continue
try:
yield from self._fetch_and_save_dmail(\
dmail_key, dmail_address, address_key)
new_dmail_cnt += 1
except Exception as e:
log.exception("Trying to fetch and save Dmail for key [{}]"\
" caused exception: {}"\
.format(mbase32.encode(dmail_key), e))
err_dmail_cnt += 1
if log.isEnabledFor(logging.INFO):
if new_dmail_cnt:
log.info("Moved [{}] Dmails to Inbox.".format(new_dmail_cnt))
else:
log.info("No new Dmails.")
return new_dmail_cnt, old_dmail_cnt, err_dmail_cnt
def _send_dmail(self, from_asymkey, recipient, dmail_bytes, signature):
assert type(recipient) is DmailSite
# Read in recipient DmailSite.
root = recipient.root
sse = sshtype.parseMpint(base58.decode(root["sse"]))[1]
target_enc = root["target"]
difficulty = root["difficulty"]
# Calculate a shared secret.
dh = dhgroup14.DhGroup14()
dh.generate_x()
dh.generate_e()
dh.f = sse
k = dh.calculate_k()
target_key = mbase32.decode(target_enc)
key = self._generate_encryption_key(target_key, k)
# Encrypt the Dmail bytes.
m, r = enc.encrypt_data_block(dmail_bytes, key)
if m:
if r:
m = m + r
else:
m = r
# Store it in a DmailWrapper.
dw = DmailWrapper()
dw.ssm = _dh_method_name
dw.sse = sse
dw.ssf = dh.e
dw.data_len = len(dmail_bytes)
dw.data_enc = m
# Store the DmailWrapper in a TargetedBlock.
tb = mp.TargetedBlock()
tb.target_key = target_key
tb.nonce = int(0).to_bytes(64, "big")
tb.block = dw
tb_data = tb.encode()
tb_header = tb_data[:mp.TargetedBlock.BLOCK_OFFSET]
# Do the POW on the TargetedBlock.
if log.isEnabledFor(logging.INFO):
log.info(\
"Attempting work on dmail (target=[{}], difficulty=[{}])."\
.format(target_enc, difficulty))
def threadcall():
return brute.generate_targeted_block(\
target_key, difficulty, tb_header,\
mp.TargetedBlock.NOONCE_OFFSET,\
mp.TargetedBlock.NOONCE_SIZE)
nonce_bytes = yield from self.loop.run_in_executor(None, threadcall)
if log.isEnabledFor(logging.INFO):
log.info("Work found nonce [{}].".format(nonce_bytes))
mp.TargetedBlock.set_nonce(tb_data, nonce_bytes)
if log.isEnabledFor(logging.INFO):
mp.TargetedBlock.set_nonce(tb_header, nonce_bytes)
log.info("Message key=[{}]."\
.format(mbase32.encode(enc.generate_ID(tb_header))))
key = None
def key_callback(val):
nonlocal key
key = val
if log.isEnabledFor(logging.DEBUG):
log.debug("TargetedBlock dump=[\n{}]."\
.format(mutil.hex_dump(tb_data)))
# Upload the TargetedBlock to the network.
log.info("Sending dmail to the network.")
total_storing = 0
retry = 0
while True:
storing_nodes = yield from\
self.task_engine.send_store_targeted_data(\
tb_data, store_key=True, key_callback=key_callback,\
retry_factor=retry * 10)
total_storing += storing_nodes
if total_storing >= 3:
break
if retry > 32:
break
elif retry > 3:
yield from asyncio.sleep(1)
retry += 1
key_enc = mbase32.encode(key)
id_enc = mbase32.encode(enc.generate_ID(key))
if log.isEnabledFor(logging.INFO):
log.info("Dmail sent; key=[{}], id=[{}], storing_nodes=[{}]."\
.format(key_enc, id_enc, total_storing))
return total_storing
def _do_POST(self, rpath):
log.info("POST; rpath=[{}].".format(rpath))
if rpath != ".upload/upload":
yield from maalstroom.dmail.serve_post(self, rpath)
return
if not self.connection_count:
self.send_error("No connected nodes; cannot upload to the"\
" network.")
return
if log.isEnabledFor(logging.DEBUG):
log.debug("headers=[{}].".format(self.handler.headers))
version = None
path = None
mime_type = None
if self.handler.headers["Content-Type"]\
== "application/x-www-form-urlencoded":
log.debug("Content-Type=[application/x-www-form-urlencoded].")
data = yield from self.read_request()
privatekey = None
else:
if log.isEnabledFor(logging.DEBUG):
log.debug("Content-Type=[{}]."\
.format(self.handler.headers["Content-Type"]))
data = yield from self.read_request()
form = cgi.FieldStorage(\
fp=io.BytesIO(data),\
headers=self.handler.headers,\
environ={\
"REQUEST_METHOD": "POST",\
"CONTENT_TYPE": self.handler.headers["Content-Type"]})
if log.isEnabledFor(logging.DEBUG):
log.debug("form=[{}].".format(form))
formelement = form["fileToUpload"]
filename = formelement.filename
data = formelement.file.read()
if log.isEnabledFor(logging.INFO):
log.info("filename=[{}].".format(filename))
privatekey = form["privateKey"].value
if privatekey and privatekey != "${PRIVATE_KEY}":
if log.isEnabledFor(logging.INFO):
log.info("privatekey=[{}].".format(privatekey))
privatekey = base58.decode(privatekey)
privatekey = rsakey.RsaKey(privdata=privatekey)
path = form["path"].value.encode()
version = form["version"].value
if not version:
version = 0
else:
version = int(version)
mime_type = form["mime_type"].value
else:
privatekey = None
if log.isEnabledFor(logging.DEBUG):
log.debug("data=[{}].".format(data))
if not privatekey:
assert not version and not path and not mime_type
try:
key_callback = KeyCallback()
yield from multipart.store_data(\
self.node.chord_engine, data, privatekey=privatekey,\
path=path, version=version, key_callback=key_callback,\
mime_type=mime_type)
except asyncio.TimeoutError:
self.send_error(errcode=408)
except Exception as e:
log.exception("send_store_data(..)")
self.send_exception(e)
if key_callback.data_key:
enckey = mbase32.encode(key_callback.data_key)
if privatekey and path:
url = "{}{}/{}"\
.format(\
self.handler.maalstroom_url_prefix_str,\
enckey,\
path.decode("UTF-8"))
else:
url = "{}{}"\
.format(\
self.handler.maalstroom_url_prefix_str,\
enckey)
if privatekey:
message = '<a id="key" href="{}">updateable key link</a>'\
.format(url)
if key_callback.referred_key:
message +=\
'<br/><a id="referred_key" href="{}{}">perma link</a>'\
.format(\
self.handler.maalstroom_url_prefix_str,\
mbase32.encode(key_callback.referred_key))
else:
message = '<a id="key" href="{}">perma link</a>'.format(url)
self.send_response(200)
self.send_header("Content-Type", "text/html")
self.send_header("Content-Length", len(message))
self.end_headers()
self.write(bytes(message, "UTF-8"))
self.finish_response()
def send_content(self, content_entry, cacheable=True, content_type=None,\
charset=None):
if type(content_entry) in (list, tuple):
content = content_entry[0]
content_id = content_entry[1]
if len(content_entry) == 3 and not content_type:
content_type = content_entry[2]
else:
content = content_entry
cacheable = False
if not content_type:
if not charset:
charset = self.get_accept_charset()
content_type = "text/html; charset={}".format(charset)
if type(content) is str:
if charset:
content = content.encode(charset)
else:
content = content.encode()
if not self.handler.maalstroom_plugin_used:
content =\
content.replace(\
b"morphis://", self.handler.maalstroom_url_prefix)
if cacheable and not content_id:
if callable(content):
content = content()
log.info("Generating content_id.")
content_id = mbase32.encode(enc.generate_ID(content))
content_entry[1] = content_id
etag = self.handler.headers["If-None-Match"]
if cacheable and etag == content_id:
cache_control = self.handler.headers["Cache-Control"]
if cache_control != "no-cache":
self.send_response(304)
self.send_header("Cache-Control", "public,max-age=300")
self.send_header("ETag", content_id)
self.send_header("Content-Length", 0)
self.end_headers()
self.finish_response()
return
if callable(content):
content = content()
self.send_response(200)
self.send_default_headers()
self.send_header("Content-Length", len(content))
self.send_header("Content-Type", content_type)
if cacheable:
self.send_header("Cache-Control", "public,max-age=300")
self.send_header("ETag", content_id)
else:
self._send_no_cache()
self.send_frame_options_header()
self.end_headers()
self.write(content)
self.finish_response()
return
def scan_and_save_new_dmails(self, dmail_address):
assert type(dmail_address) is db.DmailAddress, type(dmail_address)
new_dmail_cnt = 0
old_dmail_cnt = 0
err_dmail_cnt = 0
address_key = dmail_address.keys[0]
target = address_key.target_key
significant_bits = address_key.difficulty
start = target
def check_have_dmail_dbcall():
with self.db.open_session() as sess:
q = sess.query(func.count("*")).select_from(db.DmailMessage)\
.filter(db.DmailMessage.data_key == dmail_key)
if q.scalar():
return True
return False
while True:
data_rw = yield from self.task_engine.send_find_key(\
start, target_key=target, significant_bits=significant_bits,\
retry_factor=100)
start = dmail_key = data_rw.data_key
if not dmail_key:
if log.isEnabledFor(logging.INFO):
log.info("No more Dmails found for address (id=[{}])."\
.format(dmail_address.id))
break
if log.isEnabledFor(logging.INFO):
key_enc = mbase32.encode(dmail_key)
log.info("Found dmail key: [{}].".format(key_enc))
exists =\
yield from self.loop.run_in_executor(\
None, check_have_dmail_dbcall)
if exists:
if log.isEnabledFor(logging.DEBUG):
log.debug("Ignoring dmail (key=[{}]) we already have."\
.format(key_enc))
old_dmail_cnt += 1
continue
try:
yield from self._fetch_and_save_dmail(\
dmail_key, dmail_address, address_key)
new_dmail_cnt += 1
except Exception as e:
log.exception("Trying to fetch and save Dmail for key [{}]"\
" caused exception: {}"\
.format(mbase32.encode(dmail_key), e))
err_dmail_cnt += 1
if log.isEnabledFor(logging.INFO):
if new_dmail_cnt:
log.info("Moved [{}] Dmails to Inbox.".format(new_dmail_cnt))
else:
log.info("No new Dmails.")
return new_dmail_cnt, old_dmail_cnt, err_dmail_cnt
def key_callback(data_key):
self.writeln("data_key=[{}].".format(mbase32.encode(data_key)))
def fetch_dmail(self, key, x=None, target_key=None):
"Fetch the Dmail referred to by key from the network."\
" Returns a Dmail object, not a db.DmailMessage object."
data_rw = yield from self.task_engine.send_get_targeted_data(key)
data = data_rw.data
if not data:
return None, None
if not x:
return data, None
tb = mp.TargetedBlock(data)
if target_key:
if tb.target_key != target_key:
tb_tid_enc = mbase32.encode(tb.target_key)
tid_enc = mbase32.encode(target_key)
raise DmailException(\
"TargetedBlock->target_key [{}] does not match request"\
" [{}]."\
.format(tb_tid_enc, tid_enc))
dw = DmailWrapper(tb.buf, mp.TargetedBlock.BLOCK_OFFSET)
if dw.ssm != "mdh-v1":
raise DmailException(\
"Unrecognized key exchange method in dmail [{}]."\
.format(dw.ssm))
kex = dhgroup14.DhGroup14()
kex.x = x
kex.generate_e()
kex.f = dw.ssf
if dw.sse != kex.e:
raise DmailException(\
"Dmail [{}] is encrypted with a different e [{}] than"\
" the specified x resulted in [{}]."\
.format(mbase32.encode(data_rw.data_key), dw.sse, kex.e))
kex.calculate_k()
key = self._generate_encryption_key(tb.target_key, kex.k)
data = enc.decrypt_data_block(dw.data_enc, key)
if not data:
raise DmailException("Dmail data was empty.")
dmail = Dmail(data, 0, dw.data_len)
if dw.signature:
signature = dw.signature
pubkey = rsakey.RsaKey(dmail.sender_pubkey)
valid_sig = pubkey.verify_rsassa_pss_sig(dw.data_enc, signature)
return dmail, valid_sig
else:
return dmail, False
def key_callback(key):
print("dmail key: [{}].".format(mbase32.encode(key)))
