带有 apache2 反向代理 ssl 握手的芹菜花对于 websocket 失败

Question

我正在尝试为 apache2 后面的花设置反向代理，如本文Celery Flower Security in Production 中所述。

来自花的 Https 页面加载通过代理可以正常工作，但它打开以更新仪表板的 websocket 却没有 - ssl 握手失败并且没有返回响应。我在 ubuntu 12.04 上使用 apache2 2.2.22，并且我通过常用的补丁添加了 mod_proxy_wstunnel，以便通过隧道连接 websocket。我在 127.0.0.1:5555 上通过 supervisord 运行花。

这是我的 apache .conf 的相关部分

SSLProxyEngine On
SSLProxyVerify none

ProxyRequests Off
ProxyPass /update-dashboard wss://127.0.0.1:5555/update-dashboard
ProxyPassReverse /update-dashboard wss://127.0.0.1:5555/update-dashboard

ProxyPass / http://127.0.0.1:5555/
ProxyPassReverse / http://127.0.0.1:5555/
<Proxy  *>
Order deny,allow
Allow from all
</Proxy>

这是最终超时后的请求

"GET /update-dashboard HTTP/1.1"
 500 419 "-" "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML,     like Gecko) Chrome/43.0.2357.124 Safari/537.36"

这是 apache2 错误日志的输出

[Fri Jun 12 16:44:28 2015] [info] Initial (No.1) HTTPS request received for child 195 (server demoflower.eatthismuch.com:80)
[Fri Jun 12 16:44:28 2015] [debug] mod_proxy_wstunnel.c(377): [client 71.189.228.118] canonicalising URL //127.0.0.1:5555/update-dashboard
[Fri Jun 12 16:44:28 2015] [debug] proxy_util.c(1509): [client 71.189.228.118] proxy: wss: found worker wss://127.0.0.1:5555/update-dashboard for wss://127.0.0.1:5555/update-dashboard
[Fri Jun 12 16:44:28 2015] [debug] mod_proxy.c(1020): Running scheme wss handler (attempt 0)
[Fri Jun 12 16:44:28 2015] [debug] mod_proxy_http.c(1978): proxy: HTTP: declining URL wss://127.0.0.1:5555/update-dashboard
[Fri Jun 12 16:44:28 2015] [debug] mod_proxy_wstunnel.c(659): [client 71.189.228.118] AH02451: serving URL wss://127.0.0.1:5555/update-dashboard
[Fri Jun 12 16:44:28 2015] [debug] proxy_util.c(2014): proxy: WSS: has acquired connection for (127.0.0.1)
[Fri Jun 12 16:44:28 2015] [debug] proxy_util.c(2070): proxy: connecting wss://127.0.0.1:5555/update-dashboard to 127.0.0.1:5555
[Fri Jun 12 16:44:28 2015] [debug] proxy_util.c(2196): proxy: connected /update-dashboard to 127.0.0.1:5555
[Fri Jun 12 16:44:28 2015] [debug] proxy_util.c(2447): proxy: WSS: fam 2 socket created to connect to 127.0.0.1
[Fri Jun 12 16:44:28 2015] [debug] proxy_util.c(2579): proxy: WSS: connection complete to 127.0.0.1:5555 (127.0.0.1)
[Fri Jun 12 16:44:28 2015] [info] [client 127.0.0.1] Connection to child 0 established (server demoflower.eatthismuch.com:80)
[Fri Jun 12 16:44:28 2015] [info] Seeding PRNG with 656 bytes of entropy
[Fri Jun 12 16:44:28 2015] [debug] mod_proxy_wstunnel.c(518): [client 71.189.228.118] sending request
[Fri Jun 12 16:44:28 2015] [debug] ssl_engine_kernel.c(1819): OpenSSL: Handshake: start
[Fri Jun 12 16:44:28 2015] [debug] ssl_engine_kernel.c(1827): OpenSSL: Loop: before/connect initialization
[Fri Jun 12 16:44:28 2015] [debug] ssl_engine_kernel.c(1827): OpenSSL: Loop: unknown state
[Fri Jun 12 16:44:32 2015] [debug] ssl_engine_io.c(1908): OpenSSL: I/O error, 5 bytes expected to read on BIO#7f0b6c001650 [mem: 7f0b68006f83]
[Fri Jun 12 16:44:32 2015] [debug] ssl_engine_kernel.c(1837): OpenSSL: Write: SSL negotiation finished successfully
[Fri Jun 12 16:44:32 2015] [debug] ssl_engine_io.c(1908): OpenSSL: I/O error, 5 bytes expected to read on BIO#7f0b60001650 [mem: 7f0b60006f83]
[Fri Jun 12 16:44:32 2015] [debug] ssl_engine_kernel.c(1837): OpenSSL: Write: SSL negotiation finished successfully
[Fri Jun 12 13:44:32 2015] [debug] ssl_engine_io.c(1908): OpenSSL: I/O error, 5 bytes expected to read on BIO#7f0b70001650 [mem: 7f0b70006f83]
[Fri Jun 12 13:44:32 2015] [debug] ssl_engine_kernel.c(1837): OpenSSL: Write: SSL negotiation finished successfully
[Fri Jun 12 16:44:32 2015] [debug] ssl_engine_io.c(1908): OpenSSL: I/O error, 5 bytes expected to read on BIO#7f0b6c001650 [mem: 7f0b70006f83]
[Fri Jun 12 16:44:32 2015] [debug] ssl_engine_kernel.c(1837): OpenSSL: Write: SSL negotiation finished successfully
[Fri Jun 12 16:44:32 2015] [debug] ssl_engine_io.c(1908): OpenSSL: I/O error, 5 bytes expected to read on BIO#7f0b60001650 [mem: 7f0b70006f83]
[Fri Jun 12 16:44:32 2015] [debug] ssl_engine_kernel.c(1837): OpenSSL: Write: SSL negotiation finished successfully
[Fri Jun 12 16:44:32 2015] [debug] ssl_engine_io.c(1908): OpenSSL: I/O error, 5 bytes expected to read on BIO#7f0b64001650 [mem: 7f0b70006f83]
[Fri Jun 12 16:44:32 2015] [debug] ssl_engine_kernel.c(1837): OpenSSL: Write: SSL negotiation finished successfully

有什么想法可能会出错吗？我尝试了很多不同的 apache2 设置都无济于事。感谢阅读！

Answer 1

我有一个类似的 apache 配置文件，但它无法正常工作，我看到了 OpenSSL 错误 5 bytes expected 消息。

我添加了以下内容：

ProxyPreserveHost On

现在应用程序可以正常工作了。 我仍然看到 OpenSSL 错误，但它似乎不是问题。

注意，下降的http URL只是mod_proxy按指定顺序尝试所有较低级别的代理模块直到找到匹配的正常操作。

另外，我使用 ws: 协议而不是 wss: 与 Tomcat 8 后端通信。