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| import gradio as gr | |
| import os | |
| import json | |
| import hashlib | |
| import datetime | |
| from huggingface_hub import (upload_file,HfApi) | |
| import crypt | |
| token_self = os.environ['HF_TOKEN'] | |
| api = HfApi(token=token_self) | |
| chain_d="chain1.json" | |
| chain_t="trans1.json" | |
| def get_my_chain_send(sender_name=None): | |
| global mychain_send | |
| print(sender_name) | |
| mes_error = "" | |
| try: | |
| r1 = requests.get(f'{main_chain}{sender_name}/{sender_name}.json') | |
| print (f's={r1.text}') | |
| mychain_send = chatchain.MyChainSend(chain_load=f'{main_chain}{sender_name}/',load=r1.text) | |
| response = {'chain': mychain_send.chain, | |
| 'length': len(mychain_send.chain)} | |
| #print (f'response={response}') | |
| message = f"Blockchain loaded from: {main_chain}{sender_name}/{sender_name}.json" | |
| return response,message | |
| except Exception: | |
| message = f"Error loading from: {sender_name}" | |
| print (message) | |
| return {"MESSAGE":"Error Loading Chain"},message | |
| def get_my_chain_rec(recipient_name=None): | |
| global mychain_rec | |
| print(recipient_name) | |
| try: | |
| r2 = requests.get(f'{main_chain}{recipient_name}/{recipient_name}.json') | |
| print (f'r={r2.text}') | |
| mychain_rec = MyChainRec(chain_load=f'{main_chain}{recipient_name}/',load=r2.text) | |
| response = {'chain': mychain_rec.chain, | |
| 'length': len(mychain_rec.chain)} | |
| message = f"Blockchain loaded from: {main_chain}{recipient_name}/{recipient_name}.json" | |
| return response,message | |
| except Exception: | |
| try: | |
| mychain_rec = MyChainRec(chain_load=main_chain,create=recipient_name) | |
| response = {'chain': mychain_rec.chain, | |
| 'length': len(mychain_rec.chain)} | |
| message = f"Blockchain loaded from: {main_chain}{recipient_name}/{recipient_name}.json" | |
| return response,message | |
| except Exception: | |
| message = f"Error loading from: {recipient_name}" | |
| return ["Error Loading Chain"],message | |
| def display_chain_send(): | |
| response = {'chain': mychain_send.chain, | |
| 'length': len(mychain_send.chain)} | |
| return response | |
| def display_chain_rec(): | |
| response = {'chain': mychain_rec.chain, | |
| 'length': len(mychain_rec.chain)} | |
| return response | |
| def valid_send(): | |
| valid,ind,mes = mychain_send.chain_valid(mychain_send.chain) | |
| if valid: | |
| response = 'The Blockchain is valid.' | |
| z=True | |
| else: | |
| response = f'Sender Blockchain is not valid. {mes} at Index {ind}' | |
| z=False | |
| return response,z,mes,ind | |
| def valid_rec(): | |
| valid,ind,mes = mychain_rec.chain_valid(mychain_rec.chain) | |
| if valid: | |
| response = 'The Blockchain is valid.' | |
| z=True | |
| else: | |
| response = f'Blockchain is not valid. {mes} at Index {ind}' | |
| z=False | |
| return response,z, mes, ind | |
| def mychain_mine_block_send(chain_r=None,chain_n=None): | |
| previous_block = mychain_send.print_previous_block() | |
| previous_proof = previous_block['proof'] | |
| proof = mychain_send.proof_of_work(previous_proof) | |
| previous_hash = mychain_send.hash(previous_block) | |
| block = mychain_send.create_block(proof, previous_hash,chain_r,chain_n) | |
| response = {'message': 'A block is MINED', | |
| 'index': block['index'], | |
| 'timestamp': block['timestamp'], | |
| 'proof': block['proof'], | |
| 'previous_hash': block['previous_hash'] | |
| } | |
| message = "A block is MINED" | |
| show_chain = display_chain_send() | |
| if len(mychain_send.chain) > 1000: | |
| mychain_send.reset() | |
| response = None | |
| show_chain=display_chain_send() | |
| message = "New Chain Created at Max 20 Blocks" | |
| return response, show_chain,message | |
| def mychain_mine_block_rec(chain_r=None,chain_n=None): | |
| previous_block = mychain_rec.print_previous_block() | |
| previous_proof = previous_block['proof'] | |
| proof = mychain_rec.proof_of_work(previous_proof) | |
| previous_hash = mychain_rec.hash(previous_block) | |
| block = mychain_rec.create_block(proof, previous_hash,chain_r,chain_n) | |
| response = {'message': 'A block is MINED', | |
| 'index': block['index'], | |
| 'timestamp': block['timestamp'], | |
| 'proof': block['proof'], | |
| 'previous_hash': block['previous_hash'] | |
| } | |
| message = "A block is MINED" | |
| show_chain = display_chain_rec() | |
| if len(mychain_rec.chain) > 1000: | |
| mychain_rec.reset() | |
| response = None | |
| show_chain=display_chain_rec() | |
| message = "New Chain Created at Max 20 Blocks" | |
| return response, show_chain, message | |
| def store_image(img,chain_load,address): | |
| main_chain_im=chain_load | |
| chain_r=f"{main_chain_im.split('datasets/',1)[1].split('/raw',1)[0]}" | |
| try: | |
| api.upload_file( | |
| path_or_fileobj=img, | |
| path_in_repo=f'chat/{address}/{address}.png', | |
| repo_id=chain_r, | |
| token=token_self, | |
| repo_type="dataset", | |
| ) | |
| #os.remove("tmp_send.json") | |
| except Exception as e: | |
| print (f'Error storing image: {e}') | |
| def update_rec_list(main_chain): | |
| print (main_chain) | |
| repo = main_chain.split('datasets/',1)[1].split('/raw',1)[0].split('/',1)[0] | |
| name = main_chain.split('datasets/',1)[1].split('/raw',1)[0].split('/',1)[1] | |
| f_ist = (api.list_repo_files(repo_id=f'{repo}/{name}', repo_type="dataset")) | |
| print (f_ist) | |
| rec_list =[] | |
| rec_list.clear() | |
| for i,ea in enumerate(f_ist): | |
| if "chat/" in ea: | |
| try: | |
| if not ".png" in ea: | |
| rec_list.append(ea.split("chat/",1)[1].split("/",1)[0]) | |
| except Exception: | |
| pass | |
| print (f'REC_LIST : : {rec_list}') | |
| return rec_list, gr.Dropdown.update(label="Recipient", choices=[f for f in rec_list]) | |
| class MyChainSend: | |
| def __init__(self,chain_load,load=None,create=None): | |
| global main_chain_send | |
| main_chain_send=chain_load | |
| self.pending_transactions = [] | |
| if load == None or load=="": | |
| self.chain = [] | |
| self.create_block(proof=1, previous_hash='0',chain_n=create) | |
| elif load != None and load !="": | |
| #r = requests.get(load) | |
| lod = json.loads(load) | |
| self.chain = lod | |
| def reset(self,create=None): | |
| self.chain = [] | |
| self.pending_transactions = [] | |
| self.create_block(proof=1, previous_hash='0',chain_n=create) | |
| def create_block(self, proof, previous_hash,chain_r=None,chain_n=None): | |
| if chain_r=="" or chain_r==None: | |
| chain_r=f"{main_chain_send.split('datasets/',1)[1].split('/raw',1)[0]}" | |
| if chain_n !="" and chain_n !=None: | |
| chain_n = f"{main_chain_send.split('main/',1)[1]}{chain_n}.json" | |
| print(f'chain_n send :: {chain_n}') | |
| if chain_n=="" or chain_n==None: | |
| chain_n="error_send.json" | |
| #prev_block = len(blockchain.chain)-1 | |
| #previous_block = blockchain.chain[prev_block] | |
| block = {'index': len(self.chain) + 1, | |
| 'timestamp': str(datetime.datetime.now()), | |
| 'message': self.pending_transactions, | |
| 'proof': proof, | |
| 'previous_hash': previous_hash} | |
| if self.block_valid(block) == True: | |
| self.pending_transactions = [] | |
| self.chain.append(block) | |
| json_object = json.dumps(self.chain, indent=4) | |
| with open("tmp_send.json", "w") as outfile: | |
| outfile.write(json_object) | |
| outfile.close() | |
| try: | |
| api.upload_file( | |
| path_or_fileobj="tmp_send.json", | |
| path_in_repo=f'{chain_n}', | |
| repo_id=chain_r, | |
| token=token_self, | |
| repo_type="dataset", | |
| ) | |
| os.remove("tmp_send.json") | |
| except Exception as e: | |
| print(e) | |
| pass | |
| return block | |
| else: | |
| block = {"Not Valid"} | |
| print("not Valid") | |
| return block | |
| def print_previous_block(self): | |
| return self.chain[-1] | |
| def new_transaction(self, sender, recipient, message,priv_key): | |
| transaction = { | |
| 'sender': sender, | |
| 'recipient': recipient, | |
| 'message': message, | |
| } | |
| transaction = crypt.encrypt_trans(transaction,priv_key) | |
| self.pending_transactions.append(str(transaction)) | |
| def proof_of_work(self, previous_proof): | |
| new_proof = 1 | |
| check_proof = False | |
| while check_proof is False: | |
| hash_operation = hashlib.sha256( | |
| str(new_proof**2 - previous_proof**2).encode()).hexdigest() | |
| if hash_operation[:5] == '00000': | |
| check_proof = True | |
| else: | |
| new_proof += 1 | |
| return new_proof | |
| def hash(self, block): | |
| encoded_block = json.dumps(block, sort_keys=True).encode() | |
| return hashlib.sha256(encoded_block).hexdigest() | |
| def block_valid(self, block): | |
| #print (block) | |
| #prev_block=len(self.chain) | |
| if len(self.chain) > 0: | |
| prev_block = len(self.chain)-1 | |
| previous_block = self.chain[prev_block] | |
| #print (previous_block) | |
| out=True | |
| ind=None | |
| mes=None | |
| if block['previous_hash'] != self.hash(previous_block): | |
| out=False | |
| #ind=block_index | |
| mes='Hash' | |
| previous_proof = previous_block['proof'] | |
| proof = block['proof'] | |
| hash_operation = hashlib.sha256( | |
| str(proof**2 - previous_proof**2).encode()).hexdigest() | |
| if hash_operation[:5] != '00000': | |
| out=False | |
| #ind=block_index+1 | |
| mes='Proof' | |
| previous_block = block | |
| else: | |
| out = True | |
| return out | |
| def chain_valid(self, chain): | |
| previous_block = chain[0] | |
| block_index = 1 | |
| out=True | |
| ind=None | |
| mes=None | |
| while block_index < len(chain): | |
| block = chain[block_index] | |
| if block['previous_hash'] != self.hash(previous_block): | |
| out=False | |
| ind=block_index | |
| mes='Hash' | |
| break | |
| previous_proof = previous_block['proof'] | |
| proof = block['proof'] | |
| hash_operation = hashlib.sha256( | |
| str(proof**2 - previous_proof**2).encode()).hexdigest() | |
| if hash_operation[:5] != '00000': | |
| out=False | |
| ind=block_index+1 | |
| mes='Proof' | |
| break | |
| previous_block = block | |
| block_index += 1 | |
| return out, ind, mes | |
| def deep_valid_send(self, chain1,chain2): | |
| block_index = 1 | |
| out=True | |
| ind=None | |
| mes=None | |
| while block_index < len(chain1): | |
| block = chain1[block_index] | |
| block_ind = block['block'] | |
| block2 = chain2[block_ind] | |
| check1 = { | |
| 'timestamp':block['timestamp'], | |
| 'recipient':block['transactions']['recipient'], | |
| 'amount':block['transactions']['amount'], | |
| 'balance':block['transactions']['balance'], | |
| 'balance2':block['balance'], | |
| 'proof':block['proof'], | |
| 'previous_hash':block['previous_hash'] | |
| } | |
| zz=1 | |
| while zz < len(block2[transactions]): | |
| check2 = { | |
| 'timestamp':block2['timestamp'], | |
| 'sender':block2['transactions'][zz][0]['name'], | |
| 'recipient':block2['transactions'][zz][0]['recipient'], | |
| 'amount':block2['transactions'][zz][0]['amount'], | |
| 'balance':block2['transactions'][zz][0]['balance'], | |
| 'balance2':block2['transactions'][zz][0]['balance'], | |
| 'proof':block2['proof'], | |
| 'previous_hash':block2['previous_hash'] | |
| } | |
| zz+=1 | |
| if self.hash(check1) != self.hash(check2): | |
| out=False | |
| ind=block_index | |
| mes='Hash' | |
| break | |
| if out == False: | |
| break | |
| block_index += 1 | |
| return out, ind, mes | |
| class MyChainRec: | |
| def __init__(self,chain_load, load=None,create=None,pub_key=None): | |
| global main_chain_rec | |
| main_chain_rec=chain_load | |
| self.pending_transactions = [] | |
| if load == None or load=="": | |
| self.chain = [] | |
| self.create_block(proof=1, previous_hash='0',chain_n=create,pub_key=pub_key) | |
| if load != None and load !="": | |
| #r = requests.get(load) | |
| lod = json.loads(load) | |
| self.chain = lod | |
| def reset(self,create=None): | |
| self.chain = [] | |
| self.pending_transactions = [] | |
| self.create_block(proof=1, previous_hash='0',chain_n=create) | |
| def create_block(self, proof, previous_hash,chain_r=None,chain_n=None,pub_key=None): | |
| if chain_r=="" or chain_r==None: | |
| chain_r=f"{main_chain_rec.split('datasets/',1)[1].split('/raw',1)[0]}" | |
| if chain_n !="" and chain_n !=None: | |
| chain_n = f"{main_chain_rec.split('main/',1)[1]}{chain_n}.json" | |
| if chain_n=="" or chain_n==None: | |
| chain_n="error_rec.json" | |
| print(f'chain_n rec :: {chain_n}') | |
| #prev_block = len(blockchain.chain)-1 | |
| #previous_block = blockchain.chain[prev_block] | |
| if pub_key !=None and pub_key!="": | |
| block = {'index': len(self.chain) + 1, | |
| 'timestamp': str(datetime.datetime.now()), | |
| 'message': pub_key, | |
| 'proof': proof, | |
| 'previous_hash': previous_hash} | |
| else: | |
| block = {'index': len(self.chain) + 1, | |
| 'timestamp': str(datetime.datetime.now()), | |
| 'message': self.pending_transactions, | |
| 'proof': proof, | |
| 'previous_hash': previous_hash} | |
| if self.block_valid(block) == True: | |
| self.pending_transactions = [] | |
| self.chain.append(block) | |
| json_object = json.dumps(self.chain, indent=4) | |
| with open("tmp_rec.json", "w") as outfile: | |
| outfile.write(json_object) | |
| outfile.close() | |
| try: | |
| api.upload_file( | |
| path_or_fileobj="tmp_rec.json", | |
| path_in_repo=f'{chain_n}', | |
| repo_id=chain_r, | |
| token=token_self, | |
| repo_type="dataset", | |
| ) | |
| os.remove("tmp_rec.json") | |
| except Exception as e: | |
| print(e) | |
| pass | |
| return block | |
| else: | |
| block = {"Not Valid"} | |
| print("not Valid") | |
| return block | |
| def print_previous_block(self): | |
| return self.chain[-1] | |
| def new_transaction(self, sender, recipient, message,pub_key): | |
| transaction = { | |
| 'sender': sender, | |
| 'recipient': recipient, | |
| 'message': message, | |
| } | |
| transaction = crypt.encrypt_trans(transaction,pub_key) | |
| self.pending_transactions.append(str(transaction)) | |
| def proof_of_work(self, previous_proof): | |
| new_proof = 1 | |
| check_proof = False | |
| while check_proof is False: | |
| hash_operation = hashlib.sha256( | |
| str(new_proof**2 - previous_proof**2).encode()).hexdigest() | |
| if hash_operation[:5] == '00000': | |
| check_proof = True | |
| else: | |
| new_proof += 1 | |
| return new_proof | |
| def hash(self, block): | |
| encoded_block = json.dumps(block, sort_keys=True).encode() | |
| return hashlib.sha256(encoded_block).hexdigest() | |
| def block_valid(self, block): | |
| print (block) | |
| #prev_block=len(self.chain) | |
| if len(self.chain) > 0: | |
| prev_block = len(self.chain)-1 | |
| previous_block = self.chain[prev_block] | |
| print (previous_block) | |
| out=True | |
| ind=None | |
| mes=None | |
| if block['previous_hash'] != self.hash(previous_block): | |
| out=False | |
| #ind=block_index | |
| mes='Hash' | |
| previous_proof = previous_block['proof'] | |
| proof = block['proof'] | |
| hash_operation = hashlib.sha256( | |
| str(proof**2 - previous_proof**2).encode()).hexdigest() | |
| if hash_operation[:5] != '00000': | |
| out=False | |
| #ind=block_index+1 | |
| mes='Proof' | |
| previous_block = block | |
| else: | |
| out = True | |
| return out | |
| def chain_valid(self, chain): | |
| previous_block = chain[0] | |
| block_index = 1 | |
| out=True | |
| ind=None | |
| mes=None | |
| while block_index < len(chain): | |
| block = chain[block_index] | |
| if block['previous_hash'] != self.hash(previous_block): | |
| out=False | |
| ind=block_index | |
| mes='Hash' | |
| break | |
| previous_proof = previous_block['proof'] | |
| proof = block['proof'] | |
| hash_operation = hashlib.sha256( | |
| str(proof**2 - previous_proof**2).encode()).hexdigest() | |
| if hash_operation[:5] != '00000': | |
| out=False | |
| ind=block_index+1 | |
| mes='Proof' | |
| break | |
| previous_block = block | |
| block_index += 1 | |
| return out, ind, mes |