Resource work
This commit is contained in:
Mark Qvist
parent
bf0e22d461
commit
81804b5d19
126
RNS/Resource.py
126
RNS/Resource.py
@ -9,12 +9,12 @@ from time import sleep
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class Resource:
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WINDOW_FLEXIBILITY = 4
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WINDOW_MIN = 1
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WINDOW_MAX = 10
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WINDOW = 4
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MAPHASH_LEN = 4
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SDU = RNS.Packet.MDU
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RANDOM_HASH_SIZE = 4
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WINDOW_MIN = 1
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WINDOW_MAX = 10
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WINDOW = 4
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MAPHASH_LEN = 4
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SDU = RNS.Packet.MDU
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RANDOM_HASH_SIZE = 4
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# This is an indication of what the
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# maximum size a resource should be, if
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@ -34,7 +34,7 @@ class Resource:
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# TODO: Should be allocated more
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# intelligently
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# TODO: Set higher
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MAX_RETRIES = 5
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MAX_RETRIES = 5
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SENDER_GRACE_TIME = 10
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RETRY_GRACE_TIME = 0.25
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@ -47,7 +47,7 @@ class Resource:
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ADVERTISED = 0x02
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TRANSFERRING = 0x03
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AWAITING_PROOF = 0x04
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ASSEMBLING = 0x05
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ASSEMBLING = 0x05
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COMPLETE = 0x06
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FAILED = 0x07
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CORRUPT = 0x08
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@ -60,31 +60,31 @@ class Resource:
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resource = Resource(None, advertisement_packet.link)
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resource.status = Resource.TRANSFERRING
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resource.flags = adv.f
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resource.size = adv.t
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resource.flags = adv.f
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resource.size = adv.t
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resource.uncompressed_size = adv.d
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resource.hash = adv.h
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resource.original_hash = adv.o
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resource.random_hash = adv.r
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resource.hashmap_raw = adv.m
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resource.encrypted = True if resource.flags & 0x01 else False
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resource.compressed = True if resource.flags >> 1 & 0x01 else False
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resource.initiator = False
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resource.callback = callback
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resource.hash = adv.h
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resource.original_hash = adv.o
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resource.random_hash = adv.r
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resource.hashmap_raw = adv.m
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resource.encrypted = True if resource.flags & 0x01 else False
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resource.compressed = True if resource.flags >> 1 & 0x01 else False
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resource.initiator = False
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resource.callback = callback
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resource.__progress_callback = progress_callback
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resource.total_parts = int(math.ceil(resource.size/float(Resource.SDU)))
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resource.received_count = 0
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resource.total_parts = int(math.ceil(resource.size/float(Resource.SDU)))
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resource.received_count = 0
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resource.outstanding_parts = 0
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resource.parts = [None] * resource.total_parts
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resource.window = Resource.WINDOW
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resource.window_max = Resource.WINDOW_MAX
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resource.window_min = Resource.WINDOW_MIN
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resource.parts = [None] * resource.total_parts
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resource.window = Resource.WINDOW
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resource.window_max = Resource.WINDOW_MAX
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resource.window_min = Resource.WINDOW_MIN
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resource.window_flexibility = Resource.WINDOW_FLEXIBILITY
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resource.last_activity = time.time()
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resource.last_activity = time.time()
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resource.storagepath = RNS.Reticulum.resourcepath+"/"+resource.original_hash.hex()
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resource.segment_index = adv.i
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resource.total_segments = adv.l
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resource.storagepath = RNS.Reticulum.resourcepath+"/"+resource.original_hash.hex()
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resource.segment_index = adv.i
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resource.total_segments = adv.l
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if adv.l > 1:
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resource.split = True
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else:
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@ -122,19 +122,20 @@ class Resource:
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resource_data = None
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if hasattr(data, "read"):
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data_size = os.stat(data.name).st_size
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self.grand_total_parts = math.ceil(data_size/Resource.SDU)
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if data_size <= Resource.MAX_EFFICIENT_SIZE:
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self.total_segments = 1
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self.segment_index = 1
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self.split = False
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self.split = False
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resource_data = data.read()
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data.close()
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else:
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self.total_segments = ((data_size-1)//Resource.MAX_EFFICIENT_SIZE)+1
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self.segment_index = segment_index
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self.split = True
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seek_index = segment_index-1
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seek_position = seek_index*Resource.MAX_EFFICIENT_SIZE
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self.split = True
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seek_index = segment_index-1
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seek_position = seek_index*Resource.MAX_EFFICIENT_SIZE
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data.seek(seek_position)
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resource_data = data.read(Resource.MAX_EFFICIENT_SIZE)
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@ -142,10 +143,12 @@ class Resource:
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elif isinstance(data, bytes):
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data_size = len(data)
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self.grand_total_parts = math.ceil(data_size/Resource.SDU)
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resource_data = data
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self.total_segments = 1
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self.segment_index = 1
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self.split = False
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self.split = False
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elif data == None:
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pass
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@ -167,13 +170,12 @@ class Resource:
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self.__watchdog_job_id = 0
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self.__progress_callback = progress_callback
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self.rtt = None
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self.grand_total_parts = math.ceil(data_size/Resource.SDU)
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self.receiver_min_consecutive_height = 0
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if data != None:
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self.initiator = True
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self.callback = callback
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self.initiator = True
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self.callback = callback
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self.uncompressed_data = data
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compression_began = time.time()
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@ -228,14 +230,14 @@ class Resource:
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hashmap_computation_began = time.time()
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RNS.log("Starting resource hashmap computation with "+str(hashmap_entries)+" entries...", RNS.LOG_DEBUG)
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self.random_hash = RNS.Identity.getRandomHash()[:Resource.RANDOM_HASH_SIZE]
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self.random_hash = RNS.Identity.getRandomHash()[:Resource.RANDOM_HASH_SIZE]
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self.hash = RNS.Identity.fullHash(data+self.random_hash)
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self.expected_proof = RNS.Identity.fullHash(data+self.hash)
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if original_hash == None:
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self.original_hash = self.hash
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self.original_hash = self.hash
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else:
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self.original_hash = original_hash
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self.original_hash = original_hash
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self.parts = []
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self.hashmap = b""
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@ -717,19 +719,21 @@ class Resource:
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def progress(self):
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if self.initiator:
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# TODO: Remove
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# progress = self.sent_parts / len(self.parts)
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self.processed_parts = (self.segment_index-1)*math.ceil(Resource.MAX_EFFICIENT_SIZE/Resource.SDU)
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self.processed_parts += self.sent_parts
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self.progress_total_parts = float(self.grand_total_parts)
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else:
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self.processed_parts = (self.segment_index-1)*math.ceil(Resource.MAX_EFFICIENT_SIZE/Resource.SDU)
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self.processed_parts += self.received_count
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if self.split:
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self.progress_total_parts = float((self.total_segments-1)*math.ceil(Resource.MAX_EFFICIENT_SIZE/Resource.SDU)+self.total_parts)
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else:
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self.progress_total_parts = float(self.total_parts)
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else:
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self.processed_parts = (self.segment_index-1)*math.ceil(Resource.MAX_EFFICIENT_SIZE/Resource.SDU)
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self.processed_parts += self.received_count
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if self.split:
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self.progress_total_parts = float((self.total_segments-1)*math.ceil(Resource.MAX_EFFICIENT_SIZE/Resource.SDU)+self.total_parts)
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else:
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self.progress_total_parts = float(self.total_parts)
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progress = self.processed_parts / self.progress_total_parts
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progress = self.processed_parts / self.progress_total_parts
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return progress
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def __str__(self):
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@ -737,23 +741,23 @@ class Resource:
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class ResourceAdvertisement:
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HASHMAP_MAX_LEN = 75
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HASHMAP_MAX_LEN = 75
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COLLISION_GUARD_SIZE = 2*Resource.WINDOW_MAX+HASHMAP_MAX_LEN
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def __init__(self, resource=None):
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if resource != None:
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self.t = resource.size # Transfer size
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self.d = resource.uncompressed_size # Data size
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self.n = len(resource.parts) # Number of parts
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self.h = resource.hash # Resource hash
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self.r = resource.random_hash # Resource random hash
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self.o = resource.original_hash # First-segment hash
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self.m = resource.hashmap # Resource hashmap
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self.c = resource.compressed # Compression flag
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self.e = resource.encrypted # Encryption flag
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self.s = resource.split # Split flag
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self.i = resource.segment_index # Segment index
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self.l = resource.total_segments # Total segments
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self.t = resource.size # Transfer size
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self.d = resource.uncompressed_size # Data size
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self.n = len(resource.parts) # Number of parts
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self.h = resource.hash # Resource hash
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self.r = resource.random_hash # Resource random hash
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self.o = resource.original_hash # First-segment hash
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self.m = resource.hashmap # Resource hashmap
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self.c = resource.compressed # Compression flag
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self.e = resource.encrypted # Encryption flag
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self.s = resource.split # Split flag
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self.i = resource.segment_index # Segment index
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self.l = resource.total_segments # Total segments
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self.f = 0x00 | self.s << 2 | self.c << 1 | self.e # Flags
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def pack(self, segment=0):
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@ -770,7 +774,7 @@ class ResourceAdvertisement:
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"n": self.n, # Number of parts
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"h": self.h, # Resource hash
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"r": self.r, # Resource random hash
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"o": self.o, # Original hash
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"o": self.o, # Original hash
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"i": self.i, # Segment index
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"l": self.l, # Total segments
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"f": self.f, # Resource flags
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