Python-Neo4j Erreur de sécurité lors de la connexion à la base de données Impossible d'établir une connexion sécurisée avec '[SSL: UNKNOWN_PROTCOL (_ssl.c: 600)

Question

Im essayant de connecter le Django à Neo4j en utilisant le pilote neo4j mais je reçois une erreur de sécurité.

erreur est: - neo4j.exceptions.SecurityError: Failed to establish secure connection to '[SSL: UNKNOWN_PROTOCOL] unknown protocol (_ssl.c:600)'

Python version 3.4.3 MACOSX

Mes dépendances

django1.9 
neo4j-driver==1.4.0 

CODE Views.py

from django.shortcuts import render 
# Create your views here. 
from neo4j.v1 import GraphDatabase,basic_auth 
from django.conf import settings 
from django.db import IntegrityError 
from django.views.decorators.cache import cache_page 
from django.http import HttpResponse 
from django.contrib import messages 
from django.http import HttpResponse, HttpResponseRedirect, JsonResponse,Http404 
from django.http import StreamingHttpResponse 
from django.shortcuts import render_to_response 
from django.shortcuts import render 
from django.template import RequestContext 
from django.views.decorators.csrf import csrf_exempt 
from django import template 



uri = "bolt://localhost:7474" 
driver = GraphDatabase.driver(uri, auth=("neo4j", "password")) 


def friends(request): 
    name = "Cameron Crowe" 
    with driver.session() as session: 
     with session.begin_transaction() as tx: 
      for record in tx.run("MATCH (a:Person)-[:PRODUCED]->(f) " 
           "WHERE a.name = {name} " 
           "RETURN f.title", name=name): 
       print(record["f.title"]) 

    return render(request, "friends.html") 

Erreur

The above exception was the direct cause of the following exception: 

Traceback (most recent call last): 
    File "/Users/sskadit/Desktop/graphdb/src/lib/python3.4/site-packages/django/utils/autoreload.py", line 226, in wrapper 
    fn(*args, **kwargs) 
    File "/Users/sskadit/Desktop/graphdb/src/lib/python3.4/site-packages/django/core/management/commands/runserver.py", line 116, in inner_run 
    self.check(display_num_errors=True) 
    File "/Users/sskadit/Desktop/graphdb/src/lib/python3.4/site-packages/django/core/management/base.py", line 426, in check 
    include_deployment_checks=include_deployment_checks, 
    File "/Users/sskadit/Desktop/graphdb/src/lib/python3.4/site-packages/django/core/checks/registry.py", line 75, in run_checks 
    new_errors = check(app_configs=app_configs) 
    File "/Users/sskadit/Desktop/graphdb/src/lib/python3.4/site-packages/django/core/checks/urls.py", line 10, in check_url_config 
    return check_resolver(resolver) 
    File "/Users/sskadit/Desktop/graphdb/src/lib/python3.4/site-packages/django/core/checks/urls.py", line 19, in check_resolver 
    for pattern in resolver.url_patterns: 
    File "/Users/sskadit/Desktop/graphdb/src/lib/python3.4/site-packages/django/utils/functional.py", line 33, in __get__ 
    res = instance.__dict__[self.name] = self.func(instance) 
    File "/Users/sskadit/Desktop/graphdb/src/lib/python3.4/site-packages/django/core/urlresolvers.py", line 417, in url_patterns 
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module) 
    File "/Users/sskadit/Desktop/graphdb/src/lib/python3.4/site-packages/django/utils/functional.py", line 33, in __get__ 
    res = instance.__dict__[self.name] = self.func(instance) 
    File "/Users/sskadit/Desktop/graphdb/src/lib/python3.4/site-packages/django/core/urlresolvers.py", line 410, in urlconf_module 
    return import_module(self.urlconf_name) 
    File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/importlib/__init__.py", line 109, in import_module 
    return _bootstrap._gcd_import(name[level:], package, level) 
    File "<frozen importlib._bootstrap>", line 2254, in _gcd_import 
    File "<frozen importlib._bootstrap>", line 2237, in _find_and_load 
    File "<frozen importlib._bootstrap>", line 2226, in _find_and_load_unlocked 
    File "<frozen importlib._bootstrap>", line 1200, in _load_unlocked 
    File "<frozen importlib._bootstrap>", line 1129, in _exec 
    File "<frozen importlib._bootstrap>", line 1471, in exec_module 
    File "<frozen importlib._bootstrap>", line 321, in _call_with_frames_removed 
    File "/Users/sskadit/Desktop/graphdb/src/neo4/neo4/urls.py", line 19, in <module> 
    from graphdb.views import friends 
    File "/Users/sskadit/Desktop/graphdb/src/neo4/graphdb/views.py", line 20, in <module> 
    driver = GraphDatabase.driver("bolt://127.0.0.1:7474", auth= basic_auth("neo4j", "aditya369")).session() 
    File "/Users/sskadit/Desktop/graphdb/src/lib/python3.4/site-packages/neo4j/v1/api.py", line 124, in driver 
    return driver_class(uri, **config) 
    File "/Users/sskadit/Desktop/graphdb/src/lib/python3.4/site-packages/neo4j/v1/direct.py", line 65, in __init__ 
    pool.release(pool.acquire()) 
    File "/Users/sskadit/Desktop/graphdb/src/lib/python3.4/site-packages/neo4j/v1/direct.py", line 39, in acquire 
    connection = self.acquire_direct(address) # should always be a resolved address 
    File "/Users/sskadit/Desktop/graphdb/src/lib/python3.4/site-packages/neo4j/bolt/connection.py", line 398, in acquire_direct 
    connection = self.connector(address) 
    File "/Users/sskadit/Desktop/graphdb/src/lib/python3.4/site-packages/neo4j/v1/direct.py", line 64, in <lambda> 
    pool = DirectConnectionPool(lambda a: connect(a, security_plan.ssl_context, **config), self.address) 
    File "/Users/sskadit/Desktop/graphdb/src/lib/python3.4/site-packages/neo4j/bolt/connection.py", line 501, in connect 
    raise error 
neo4j.exceptions.SecurityError: Failed to establish secure connection to '[SSL: UNKNOWN_PROTOCOL] unknown protocol (_ssl.c:600)' 

Answer 1

Merci Rishabh pour écrire une solution à la question.

J'ai ensuite réalisé que le numéro de port 7474 est utilisé pour le protocole http pour l'utilisation de SSL.

J'ai changé la forme d'URL uri = "bolt://localhost:7474"-uri = "bolt://localhost:7687"

charme !! bossait comme des

Answer 2

Cela a été rapporté dans un Github issue here. Est-ce que ce qui suit fonctionne pour vous?

1. Désinstallez le pilote de Neo4j en utilisant pip uninstall neo4j-driver
2. Exécutez la commande echo "deb http://httpredir.debian.org/debian/ jessie-backports main" >> /etc/apt/sources.list && apt update && apt install -y -t jessie-backports openssl dans le terminal
3. Réinstaller Neo4j-pilote pip install neo4j-driver

Answer 3

Le navigateur affichait le port 9987 et je recevais une exception lors de l'utilisation de ce port. Cela a fonctionné quand j'ai changé le port en python à 7687