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使用 nginx 反向代理上的 php 处理错误，并向管理员发送邮件回复

tag-icon • tag-icon nginx php email reverse-proxy error-handling
使用 nginx 反向代理上的 php 处理错误，并向管理员发送邮件回复

一旦 Nginx 检测到错误，是否有办法从 php 访问服务器响应，并将服务器响应邮寄给管理员，同时向访问者显示自定义错误页面？

目前，我能够将错误页面委托给 PHP，然后我可以从那里向管理员发送一封邮件，其中包含从 nginx 获取的有关请求的信息，但它将所有内容检测为 GET 请求，丢失所有 POST 信息，并且我发现无法访问实际响应，因此我可以将其邮寄给管理员，所以基本上我发送了一份关于错误的非常不完整的报告。

有没有办法不丢失 POST 信息，并在将请求委托给 PHP 后从服务器读取响应？ 有没有其他方法可以邮寄错误页面，同时显示自定义错误页面？

这是我当前的 nginx 设置（附加到子句的 GET 参数error_page是我发现的将有关生成错误的后端服务器的某些信息传递给 PHP 的唯一方法）：

location / {
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $remote_addr;
        proxy_connect_timeout 4s;
        proxy_pass $scheme://hsbservers_$scheme;
        proxy_next_upstream error timeout invalid_header http_502 http_504;
        proxy_intercept_errors on;
        server_tokens off;
}

error_page 500 503 502 504 /error.php?err=$status&svr=$upstream_addr&uperr=$upstream_status&sT=$upstream_response_time&pT=$request_time;

location ~ error\.php$ {
        try_files $uri /index.php;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass unix:/var/run/php5-fpm.sock;
        fastcgi_index index.php;
        include fastcgi_params;
}

这是我从 PHP 发送的针对生成错误的 POST 请求的电子邮件示例：

_SERVER
Array
(
    [USER] => www-data
    [HOME] => /var/www
    [FCGI_ROLE] => RESPONDER
    [QUERY_STRING] => err=500&svr=45.79.216.211:443&uperr=500&sT=1.476&pT=1.610
    [REQUEST_METHOD] => GET
    [CONTENT_TYPE] => multipart/form-data; boundary=----WebKitFormBoundarydq4hsdTNEzIU6Vve
    [CONTENT_LENGTH] => 9550
    [SCRIPT_FILENAME] => /usr/share/nginx/html/error.php
    [SCRIPT_NAME] => /error.php
    [REQUEST_URI] => /node/add/article
    [DOCUMENT_URI] => /error.php
    [DOCUMENT_ROOT] => /usr/share/nginx/html
    [SERVER_PROTOCOL] => HTTP/1.1
    [GATEWAY_INTERFACE] => CGI/1.1
    [SERVER_SOFTWARE] => nginx/1.4.6
    [REMOTE_ADDR] => 181.49.223.170
    [REMOTE_PORT] => 42033
    [SERVER_ADDR] => 172.31.55.210
    [SERVER_PORT] => 443
    [SERVER_NAME] => _
    [HTTPS] => on
    [REDIRECT_STATUS] => 200
    [HTTP_HOST] => hsbnoticias.com
    [HTTP_CONNECTION] => keep-alive
    [HTTP_CONTENT_LENGTH] => 9550
    [HTTP_CACHE_CONTROL] => max-age=0
    [HTTP_ACCEPT] => text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
    [HTTP_ORIGIN] => https://hsbnoticias.com
    [HTTP_UPGRADE_INSECURE_REQUESTS] => 1
    [HTTP_USER_AGENT] => Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.116 Safari/537.36
    [HTTP_CONTENT_TYPE] => multipart/form-data; boundary=----WebKitFormBoundarydq4hsdTNEzIU6Vve
    [HTTP_REFERER] => https://hsbnoticias.com/node/add/article
    [HTTP_ACCEPT_ENCODING] => gzip, deflate
    [HTTP_ACCEPT_LANGUAGE] => es-ES,es;q=0.8,en;q=0.6
    [HTTP_COOKIE] => __utma=25821092.617945397.1386681757.1424269387.1424279038.1469; Akamai_AnalyticsMetrics_clientId=20F2C6C63C0941486F0568FD14A252190904562C; trc_cookie_storage=usatodaydemo%253Asession-data%3Dv2_177fa1cd37c772080393b0e4007ac4e6_582a3853-af49-45d6-9600-d7481e581c4a_1429209499_1429209499_CKLTqAQQkAk%7Ctaboola%2520global%253Auser-id%3D582a3853-af49-45d6-9600-d7481e581c4a; __auc=0f2b68a314c8a0dc7ab8c361ffd; SESSee59450aceeb2ad9ba034cb2ae7af965=sDwitzc8TjB-UrjReaVWF0h5X-MjHHa8xJEBwPyd5fI; SSESSee59450aceeb2ad9ba034cb2ae7af965=ztTP58Pqe1GnuolI2nlm56pWuafDDHlTZHGnVIX-XCg; IBCTY=Bogotá; IBCTR=CO; pa-submit=%20(109-1456229200023; SESSe4f5b902a099a887d938a023f3196d9f=jvAgtxfWQTEdn7brQWvDzLAX0GLKI5rq4AMESZjBpPc; SSESSe4f5b902a099a887d938a023f3196d9f=WDVksh3fUArALczBiCq-BiZYANsiDgn_wUVM2RZ1sr8; _gat=1; _ga=GA1.2.617945397.1386681757; IBPOP=0$|0; __unam=e216ae8-142dcc6664e-75f824f6-43252; has_js=1; Drupal.tableDrag.showWeight=0
    [PHP_SELF] => /error.php
    [REQUEST_TIME_FLOAT] => 1456243321.1031
    [REQUEST_TIME] => 1456243321
)


_POST
Array
(
)


_GET
Array
(
    [err] => 500
    [svr] => 45.79.216.211:443
    [uperr] => 500
    [sT] => 1.476
    [pT] => 1.610
)

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