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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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17
RNS/Link.py
View File

@ -687,7 +687,9 @@ class Link:
remove = pending_request
try:
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)
except Exception as e:
RNS.log("Error occurred while handling response. The contained exception was: "+str(e), RNS.LOG_ERROR)
@ -836,9 +838,13 @@ class Link:
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)
if response_resource != None:
pending_request.response_size = RNS.ResourceAdvertisement.read_size(packet)
pending_request.response_transfer_size = RNS.ResourceAdvertisement.read_transfer_size(packet)
pending_request.started_at = time.time()
if pending_request.response_size == None:
pending_request.response_size = RNS.ResourceAdvertisement.read_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.response_resource_progress(response_resource)
elif self.resource_strategy == Link.ACCEPT_NONE:
@ -1133,7 +1139,8 @@ class RequestReceipt():
def request_resource_concluded(self, resource):
if resource.status == RNS.Resource.COMPLETE:
RNS.log("Request "+RNS.prettyhexrep(self.request_id)+" successfully sent as resource.", RNS.LOG_DEBUG)
self.started_at = time.time()
if self.started_at == None:
self.started_at = time.time()
self.status = RequestReceipt.DELIVERED
self.__resource_response_timeout = time.time()+self.timeout
response_timeout_thread = threading.Thread(target=self.__response_timeout_job)

52
RNS/Resource.py
View File

@ -25,6 +25,7 @@ import os
import bz2
import math
import time
import tempfile
import threading
from threading import Lock
from .vendor import umsgpack as umsgpack
@ -106,7 +107,8 @@ class Resource:
PART_TIMEOUT_FACTOR_AFTER_RTT = 2
MAX_RETRIES = 16
MAX_ADV_RETRIES = 4
SENDER_GRACE_TIME = 10
SENDER_GRACE_TIME = 10.0
PROCESSING_GRACE = 1.0
RETRY_GRACE_TIME = 0.25
PER_RETRY_DELAY = 0.5
@ -203,9 +205,19 @@ class Resource:
resource_data = None
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"):
data_size = os.stat(data.name).st_size
self.total_size = data_size
if data_size == None:
data_size = os.stat(data.name).st_size
self.total_size = data_size
self.grand_total_parts = math.ceil(data_size/Resource.SDU)
if data_size <= Resource.MAX_EFFICIENT_SIZE:
@ -278,7 +290,7 @@ class Resource:
self.uncompressed_data = data
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)
self.compressed_data = bz2.compress(self.uncompressed_data)
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
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 self.retries_left <= 0:
RNS.log("Resource transfer timeout after sending advertisement", RNS.LOG_DEBUG)
@ -612,10 +624,24 @@ class Resource:
self.callback(self)
except Exception as e:
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:
# Otherwise we'll recursively create the
# 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:
pass
else:
@ -732,20 +758,6 @@ class Resource:
search_start = pn
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]:
if part == None:
part_hash = self.hashmap[pn]