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Fixed large resource transfers failing under some conditions

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This commit is contained in:
Mark Qvist 2024-01-14 00:46:55 +01:00
parent a2caa47334
commit ae1d962b9b
2 changed files with 44 additions and 25 deletions
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11
RNS/Link.py
View File

@ -687,7 +687,9 @@ class Link:
remove = pending_request remove = pending_request
try: try:
pending_request.response_size = response_size pending_request.response_size = response_size
pending_request.response_transfer_size = response_transfer_size if pending_request.response_transfer_size == None:
pending_request.response_transfer_size = 0
pending_request.response_transfer_size += response_transfer_size
pending_request.response_received(response_data) pending_request.response_received(response_data)
except Exception as e: except Exception as e:
RNS.log("Error occurred while handling response. The contained exception was: "+str(e), RNS.LOG_ERROR) RNS.log("Error occurred while handling response. The contained exception was: "+str(e), RNS.LOG_ERROR)
@ -836,8 +838,12 @@ class Link:
if pending_request.request_id == request_id: if pending_request.request_id == request_id:
response_resource = RNS.Resource.accept(packet, callback=self.response_resource_concluded, progress_callback=pending_request.response_resource_progress, request_id = request_id) response_resource = RNS.Resource.accept(packet, callback=self.response_resource_concluded, progress_callback=pending_request.response_resource_progress, request_id = request_id)
if response_resource != None: if response_resource != None:
if pending_request.response_size == None:
pending_request.response_size = RNS.ResourceAdvertisement.read_size(packet) pending_request.response_size = RNS.ResourceAdvertisement.read_size(packet)
pending_request.response_transfer_size = RNS.ResourceAdvertisement.read_transfer_size(packet) if pending_request.response_transfer_size == None:
pending_request.response_transfer_size = 0
pending_request.response_transfer_size += RNS.ResourceAdvertisement.read_transfer_size(packet)
if pending_request.started_at == None:
pending_request.started_at = time.time() pending_request.started_at = time.time()
pending_request.response_resource_progress(response_resource) pending_request.response_resource_progress(response_resource)
@ -1133,6 +1139,7 @@ class RequestReceipt():
def request_resource_concluded(self, resource): def request_resource_concluded(self, resource):
if resource.status == RNS.Resource.COMPLETE: if resource.status == RNS.Resource.COMPLETE:
RNS.log("Request "+RNS.prettyhexrep(self.request_id)+" successfully sent as resource.", RNS.LOG_DEBUG) RNS.log("Request "+RNS.prettyhexrep(self.request_id)+" successfully sent as resource.", RNS.LOG_DEBUG)
if self.started_at == None:
self.started_at = time.time() self.started_at = time.time()
self.status = RequestReceipt.DELIVERED self.status = RequestReceipt.DELIVERED
self.__resource_response_timeout = time.time()+self.timeout self.__resource_response_timeout = time.time()+self.timeout

48
RNS/Resource.py
View File

@ -25,6 +25,7 @@ import os
import bz2 import bz2
import math import math
import time import time
import tempfile
import threading import threading
from threading import Lock from threading import Lock
from .vendor import umsgpack as umsgpack from .vendor import umsgpack as umsgpack
@ -106,7 +107,8 @@ class Resource:
PART_TIMEOUT_FACTOR_AFTER_RTT = 2 PART_TIMEOUT_FACTOR_AFTER_RTT = 2
MAX_RETRIES = 16 MAX_RETRIES = 16
MAX_ADV_RETRIES = 4 MAX_ADV_RETRIES = 4
SENDER_GRACE_TIME = 10 SENDER_GRACE_TIME = 10.0
PROCESSING_GRACE = 1.0
RETRY_GRACE_TIME = 0.25 RETRY_GRACE_TIME = 0.25
PER_RETRY_DELAY = 0.5 PER_RETRY_DELAY = 0.5
@ -203,8 +205,18 @@ class Resource:
resource_data = None resource_data = None
self.assembly_lock = False self.assembly_lock = False
if data != None:
if not hasattr(data, "read") and len(data) > Resource.MAX_EFFICIENT_SIZE:
original_data = data
data_size = len(original_data)
data = tempfile.TemporaryFile()
data.write(original_data)
del original_data
if hasattr(data, "read"): if hasattr(data, "read"):
if data_size == None:
data_size = os.stat(data.name).st_size data_size = os.stat(data.name).st_size
self.total_size = data_size self.total_size = data_size
self.grand_total_parts = math.ceil(data_size/Resource.SDU) self.grand_total_parts = math.ceil(data_size/Resource.SDU)
@ -278,7 +290,7 @@ class Resource:
self.uncompressed_data = data self.uncompressed_data = data
compression_began = time.time() compression_began = time.time()
if (auto_compress and len(self.uncompressed_data) < Resource.AUTO_COMPRESS_MAX_SIZE): if (auto_compress and len(self.uncompressed_data) <= Resource.AUTO_COMPRESS_MAX_SIZE):
RNS.log("Compressing resource data...", RNS.LOG_DEBUG) RNS.log("Compressing resource data...", RNS.LOG_DEBUG)
self.compressed_data = bz2.compress(self.uncompressed_data) self.compressed_data = bz2.compress(self.uncompressed_data)
RNS.log("Compression completed in "+str(round(time.time()-compression_began, 3))+" seconds", RNS.LOG_DEBUG) RNS.log("Compression completed in "+str(round(time.time()-compression_began, 3))+" seconds", RNS.LOG_DEBUG)
@ -440,7 +452,7 @@ class Resource:
sleep_time = None sleep_time = None
if self.status == Resource.ADVERTISED: if self.status == Resource.ADVERTISED:
sleep_time = (self.adv_sent+self.timeout)-time.time() sleep_time = (self.adv_sent+self.timeout+Resource.PROCESSING_GRACE)-time.time()
if sleep_time < 0: if sleep_time < 0:
if self.retries_left <= 0: if self.retries_left <= 0:
RNS.log("Resource transfer timeout after sending advertisement", RNS.LOG_DEBUG) RNS.log("Resource transfer timeout after sending advertisement", RNS.LOG_DEBUG)
@ -612,10 +624,24 @@ class Resource:
self.callback(self) self.callback(self)
except Exception as e: except Exception as e:
RNS.log("Error while executing resource concluded callback from "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR) RNS.log("Error while executing resource concluded callback from "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
finally:
if hasattr(self.input_file, "close") and callable(self.input_file.close):
try:
self.input_file.close()
except Exception as e:
RNS.log("Error while closing resource input file: "+str(e), RNS.LOG_ERROR)
else: else:
# Otherwise we'll recursively create the # Otherwise we'll recursively create the
# next segment of the resource # next segment of the resource
Resource(self.input_file, self.link, callback = self.callback, segment_index = self.segment_index+1, original_hash=self.original_hash, progress_callback = self.__progress_callback) Resource(
self.input_file, self.link,
callback = self.callback,
segment_index = self.segment_index+1,
original_hash=self.original_hash,
progress_callback = self.__progress_callback,
request_id = self.request_id,
is_response = self.is_response,
)
else: else:
pass pass
else: else:
@ -732,20 +758,6 @@ class Resource:
search_start = pn search_start = pn
search_size = self.window search_size = self.window
# TODO: Remove
# tpm = []
# tpi = 0
# try:
# for p in self.parts:
# if p == None:
# tpm.append(None)
# else:
# tpm.append(tpi)
# tpi+=1
# except Exception as e:
# print(str(e))
# RNS.log(f"Partmap: "+str(tpm))
for part in self.parts[search_start:search_start+search_size]: for part in self.parts[search_start:search_start+search_size]:
if part == None: if part == None:
part_hash = self.hashmap[pn] part_hash = self.hashmap[pn]