Tenho um fenômeno estranho que não consigo explicar. Estou executando um nginx com letsencrypt e um servidor de aplicativos Java. O nginx escuta em 443 e o servidor de aplicativos em 8008. Ambos usam SSL e o mesmo certificado. O Nginx funciona perfeitamente, mas o servidor de aplicativos é estranho:
- Postman carrega sem erro
- CURL carrega sem erro
- O Safari no macOS carrega sem erros
- O Chrome no macOS carrega a página, mas a busca do JavaScript
/openapi.json
falha - tambémo download direto - O Firefox no macOS falha (não é possível estabelecer uma conexão segura)
- Safari no iOS falha
Usando curl -v --http1.1 https://frascati.projectkeep.io:8008/openapi/
programas:
curl -v --http1.1 https://frascati.projectkeep.io:8008/openapi/
* Trying 18.218.218.93...
* TCP_NODELAY set
* Connected to frascati.projectkeep.io (18.218.218.93) port 8008 (#0)
* ALPN, offering http/1.1
* Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH
* successfully set certificate verify locations:
* CAfile: /etc/ssl/cert.pem
CApath: none
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
* TLSv1.2 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
* TLSv1.2 (IN), TLS handshake, Server finished (14):
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
* TLSv1.2 (OUT), TLS change cipher, Client hello (1):
* TLSv1.2 (OUT), TLS handshake, Finished (20):
* TLSv1.2 (IN), TLS change cipher, Client hello (1):
* TLSv1.2 (IN), TLS handshake, Finished (20):
* SSL connection using TLSv1.2 / ECDHE-RSA-AES128-GCM-SHA256
* ALPN, server accepted to use http/1.1
* Server certificate:
* subject: CN=frascati.projectkeep.io
* start date: Jan 27 13:46:16 2020 GMT
* expire date: Apr 26 13:46:16 2020 GMT
* subjectAltName: host "frascati.projectkeep.io" matched cert's "frascati.projectkeep.io"
* issuer: C=US; O=Let's Encrypt; CN=Let's Encrypt Authority X3
* SSL certificate verify ok.
> GET /openapi/ HTTP/1.1
> Host: frascati.projectkeep.io:8008
> User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)
> Accept: */*
> Referer:
>
< HTTP/1.1 200 OK
< accept-ranges: bytes
< content-length: 1394
< cache-control: public, max-age=86400
< last-modified: Mon, 27 Jan 2020 16:05:19 GMT
< date: Mon, 27 Jan 2020 18:11:52 GMT
< content-type: text/html;charset=UTF-8
<
<!-- HTML for static distribution bundle build -->
<!DOCTYPE html>
Atualizar
Para comparação aqui, a saída do nginx para omesmo conteúdo:
curl -v https://frascati.projectkeep.io/openapi/
* Trying 18.218.218.93...
* TCP_NODELAY set
* Connected to frascati.projectkeep.io (18.218.218.93) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH
* successfully set certificate verify locations:
* CAfile: /etc/ssl/cert.pem
CApath: none
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
* TLSv1.2 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
* TLSv1.2 (IN), TLS handshake, Server finished (14):
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
* TLSv1.2 (OUT), TLS change cipher, Client hello (1):
* TLSv1.2 (OUT), TLS handshake, Finished (20):
* TLSv1.2 (IN), TLS change cipher, Client hello (1):
* TLSv1.2 (IN), TLS handshake, Finished (20):
* SSL connection using TLSv1.2 / ECDHE-RSA-AES256-GCM-SHA384
* ALPN, server accepted to use http/1.1
* Server certificate:
* subject: CN=frascati.projectkeep.io
* start date: Jan 27 13:46:16 2020 GMT
* expire date: Apr 26 13:46:16 2020 GMT
* subjectAltName: host "frascati.projectkeep.io" matched cert's "frascati.projectkeep.io"
* issuer: C=US; O=Let's Encrypt; CN=Let's Encrypt Authority X3
* SSL certificate verify ok.
> GET /openapi/ HTTP/1.1
> Host: frascati.projectkeep.io
> User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)
> Accept: */*
> Referer:
>
< HTTP/1.1 200 OK
< Server: nginx/1.16.1
< Date: Mon, 27 Jan 2020 18:07:02 GMT
< Content-Type: text/html;charset=UTF-8
< Content-Length: 1394
< Connection: keep-alive
< accept-ranges: bytes
< cache-control: public, max-age=86400
< last-modified: Mon, 27 Jan 2020 16:05:19 GMT
<
<!-- HTML for static distribution bundle build -->
O que eu sinto falta?
Responder1
Como saiu nos comentários à pergunta:
Seu servidor de aplicativos está usando Java 8 com
JSSE
,Foi
TLSv1.3
configurado entre os protocolos TLS possíveis.
O problema descrito é causado pelofalta de suporte para TLSv1.3na implementação SSLContext padrão do Java. Então:
curl
propõeTLS
até a versão 1.3- o servidor aceita e depois engasga
Observação: se você estiver usando o Tomcat, o OpenSSLImplementation
suporte TLSv1.3
será compatível com a biblioteca nativa subjacente.