301 lines
10 KiB
Python
Executable File
301 lines
10 KiB
Python
Executable File
#!/usr/bin/env python3
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import os, sys, ast, requests, json, base58, base64, time, string, random, re
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from natools import fmt, sign, get_privkey, box_decrypt, box_encrypt
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from hashlib import sha256
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from datetime import datetime
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from termcolor import colored
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VERSION = "0.1-dev"
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PUBKEY_REGEX = "(?![OIl])[1-9A-Za-z]{42,45}"
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def pp_json(json_thing, sort=True, indents=4):
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if type(json_thing) is str:
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print(json.dumps(json.loads(json_thing), sort_keys=sort, indent=indents))
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else:
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print(json.dumps(json_thing, sort_keys=sort, indent=indents))
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return None
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class ReadFromCesium:
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def __init__(self, dunikey, pod):
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# Get my pubkey from my private key
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try:
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self.dunikey = dunikey
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if not dunikey:
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raise ValueError("Dunikey is empty")
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except:
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sys.stderr.write("Please fill the path to your private key (PubSec)\n")
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sys.exit(1)
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self.recipient = get_privkey(dunikey, "pubsec").pubkey
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self.pod = pod
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if not re.match(PUBKEY_REGEX, self.recipient) or len(self.recipient) > 45:
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sys.stderr.write("La clé publique n'est pas au bon format.\n")
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sys.exit(1)
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# Configure JSON document to send
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def configDoc(self, nbrMsg, outbox):
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if outbox:
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boxType = "issuer"
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else:
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boxType = "recipient"
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return {
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"sort": { "time": "desc" },
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"from": 0,
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"size": nbrMsg,
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"_source":[
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"issuer",
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"recipient",
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"title",
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"content",
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"time",
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"nonce",
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"read_signature"
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],"query":{
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"bool":{
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"filter":{
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"term":{
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boxType: self.recipient
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}
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}
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}
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}
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}
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def sendDocument(self, nbrMsg, outbox):
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if outbox:
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boxType = "outbox"
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else:
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boxType = "inbox"
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document = json.dumps(self.configDoc(nbrMsg, outbox))
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headers = {
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'Content-type': 'application/json',
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}
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# Send JSON document and get JSON result
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result = requests.post('{0}/message/{1}/_search'.format(self.pod, boxType), headers=headers, data=document)
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if result.status_code == 200:
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return result.json()["hits"]
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else:
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sys.stderr.write("Echec de l'envoi du document de lecture des messages...\n" + result.text)
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# Parse JSON result and display messages
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def readMessages(self, msgJSON, nbrMsg, outbox):
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def decrypt(msg):
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msg64 = base64.b64decode(msg)
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return box_decrypt(msg64, get_privkey(self.dunikey, "pubsec"), self.issuer, nonce).decode()
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# Get terminal size
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rows = int(os.popen('stty size', 'r').read().split()[1])
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totalMsg = msgJSON["total"]
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if nbrMsg > totalMsg:
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nbrMsg = totalMsg
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if totalMsg == 0:
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print(colored("Aucun message à afficher.", 'yellow'))
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return True
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else:
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infoTotal = " Nombre de messages: " + str(nbrMsg) + "/" + str(totalMsg) + " "
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print(colored(infoTotal.center(rows, '#'), "yellow"))
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for hits in msgJSON["hits"]:
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self.idMsg = hits["_id"]
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msgSrc = hits["_source"]
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self.issuer = msgSrc["issuer"]
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nonce = msgSrc["nonce"]
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nonce = base58.b58decode(nonce)
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self.dateS = msgSrc["time"]
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date = datetime.fromtimestamp(self.dateS).strftime(", le %d/%m/%Y à %H:%M ")
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if outbox:
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startHeader = " À " + msgSrc["recipient"]
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else:
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startHeader = " De " + self.issuer
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headerMsg = startHeader + date + "(ID: {})".format(self.idMsg) + " "
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print('-'.center(rows, '-'))
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print(colored(headerMsg, "blue").center(rows+9, '-'))
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print('-'.center(rows, '-'))
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try:
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self.title = decrypt(msgSrc["title"])
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self.content = decrypt(msgSrc["content"])
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except Exception as e:
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sys.stderr.write(colored(str(e), 'red') + '\n')
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pp_json(hits)
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continue
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print("Objet: " + self.title)
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print(self.content)
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# pp_json(hits)
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def read(self, nbrMsg, outbox):
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jsonMsg = self.sendDocument(nbrMsg, outbox)
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self.readMessages(jsonMsg, nbrMsg, outbox)
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#################### Sending class ####################
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class SendToCesium:
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def __init__(self, dunikey, pod, recipient, outbox):
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# Get my pubkey from my private key
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try:
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self.dunikey = dunikey
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if not dunikey:
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raise ValueError("Dunikey is empty")
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except:
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sys.stderr.write("Please fill the path to your private key (PubSec)\n")
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sys.exit(1)
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self.issuer = get_privkey(dunikey, "pubsec").pubkey
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self.pod = pod
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self.recipient = recipient
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self.outbox = outbox
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# Generate pseudo-random nonce
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nonce=[]
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for i in range(32):
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nonce.append(random.choice(string.ascii_letters + string.digits))
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self.nonce = base64.b64decode(''.join(nonce))
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if not re.match(PUBKEY_REGEX, recipient) or len(recipient) > 45:
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sys.stderr.write("La clé publique n'est pas au bon format.\n")
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sys.exit(1)
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def encryptMsg(self, msg):
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return fmt["64"](box_encrypt(msg.encode(), get_privkey(self.dunikey, "pubsec"), self.recipient, self.nonce)).decode()
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def configDoc(self, title, msg):
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b58nonce = base58.b58encode(self.nonce).decode()
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# Get current timestamp
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timeSent = int(time.time())
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# Generate document to customize
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document = str({"issuer":self.issuer,"recipient":self.recipient,"title":title,"content":msg,"time":timeSent,"nonce":b58nonce,"version":2}).replace("'",'"')
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# Generate hash of document
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hashDoc = sha256(document.encode()).hexdigest().upper()
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# Generate signature of document
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signature = fmt["64"](sign(hashDoc.encode(), get_privkey(self.dunikey, "pubsec"))[:-len(hashDoc.encode())]).decode()
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# Build final document
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finalDoc = '{' + '"hash":"{0}","signature":"{1}",'.format(hashDoc, signature) + document[1:]
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return finalDoc
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def sendDocument(self, document):
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if self.outbox:
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boxType = "outbox"
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else:
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boxType = "inbox"
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headers = {
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'Content-type': 'application/json',
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}
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# Send JSON document and get result
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try:
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result = requests.post('{0}/message/{1}?pubkey={2}'.format(self.pod, boxType, self.recipient), headers=headers, data=document)
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except Exception as e:
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sys.stderr.write("Impossible d'envoyer le message:\n" + str(e))
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sys.exit(1)
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else:
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if result.status_code == 200:
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print(colored("Message envoyé avec succès !", "green"))
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print("ID: " + result.text)
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return result
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else:
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sys.stderr.write("Erreur inconnue.")
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def send(self, title, msg):
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finalDoc = self.configDoc(self.encryptMsg(title), self.encryptMsg(msg)) # Configure JSON document to send
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self.sendDocument(finalDoc) # Send final signed document
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#################### Deleting class ####################
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class DeleteFromCesium:
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def __init__(self, dunikey, pod, outbox):
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# Get my pubkey from my private key
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try:
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self.dunikey = dunikey
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if not dunikey:
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raise ValueError("Dunikey is empty")
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except:
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sys.stderr.write("Please fill the path to your private key (PubSec)\n")
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sys.exit(1)
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self.issuer = get_privkey(dunikey, "pubsec").pubkey
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self.pod = pod
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self.outbox = outbox
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def configDoc(self, idMsg):
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# Get current timestamp
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timeSent = int(time.time())
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# Generate document to customize
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if self.outbox:
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boxType = "outbox"
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else:
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boxType = "inbox"
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document = str({"version":2,"index":"message","type":boxType,"id":idMsg,"issuer":self.issuer,"time":timeSent}).replace("'",'"')
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# "{\"version\":2,\"index\":\"message\",\"type\":\"$type\",\"id\":\"$id\",\"issuer\":\"$issuer\",\"time\":$times}"
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# Generate hash of document
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hashDoc = sha256(document.encode()).hexdigest().upper()
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# Generate signature of document
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signature = fmt["64"](sign(hashDoc.encode(), get_privkey(self.dunikey, "pubsec"))[:-len(hashDoc.encode())]).decode()
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# Build final document
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finalDoc = '{' + '"hash":"{0}","signature":"{1}",'.format(hashDoc, signature) + document[1:]
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return finalDoc
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def sendDocument(self, document, idMsg):
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headers = {
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'Content-type': 'application/json',
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}
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# Send JSON document and get result
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try:
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result = requests.post('{0}/history/delete'.format(self.pod), headers=headers, data=document)
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if result.status_code == 404:
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raise ValueError("Message introuvable")
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elif result.status_code == 403:
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raise ValueError("Vous n'êtes pas l'auteur de ce message.")
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except Exception as e:
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sys.stderr.write(colored("Impossible de supprimer le message {0}:\n".format(idMsg), 'red') + str(e) + "\n")
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return False
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else:
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if result.status_code == 200:
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print(colored("Message {0} supprimé avec succès !".format(idMsg), "green"))
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return result
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else:
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sys.stderr.write("Erreur inconnue.")
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def delete(self, idsMsgList):
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for idMsg in idsMsgList:
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finalDoc = self.configDoc(idMsg)
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self.sendDocument(finalDoc, idMsg)
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