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[alohalytics] Better documentation for FastCGI Server.

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This commit is contained in:
Alex Zolotarev 2015-07-03 20:39:19 +03:00
parent 1b39190958
commit d1b322f6eb
1 changed files with 49 additions and 6 deletions
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55
3party/Alohalytics/server/fcgi_server.cc
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@ -22,13 +22,56 @@
SOFTWARE.
*******************************************************************************/
// This FastCGI server implementation is designed to store statistics received from remote clients.
// clang-format off
/* This FastCGI server implementation is designed to store statistics received from remote clients.
// Validity checks for requests should be mostly done on nginx side:
// $request_method should be POST only
// $content_length should be set and greater than zero (we re-check it below anyway)
// $content_type should be set to application/alohalytics-binary-blob
// $http_content_encoding should be set to gzip
Validity checks for requests should be mostly done on nginx side:
$request_method should be POST only
$content_length should be set and greater than zero (we re-check it below anyway)
$content_type should be set to application/alohalytics-binary-blob
$http_content_encoding should be set to gzip
This binary shoud be spawn as a FastCGI app, for example:
$ spawn-fcgi [-n] -p 8888 -- ./fcgi_server /dir/to/store/received/data [/optional/path/to/log.file]
# This is nginx config example to receive data from clients.
http {
log_format alohalytics '$remote_addr [$time_local] "$request" $status $content_length "$http_user_agent" $content_type $http_content_encoding';
server {
listen 8080;
server_name localhost;
# To hide nginx version.
server_tokens off;
location ~ ^/(ios|android)/(.+)/(.+) {
set $OS $1;
# Our clients send only POST requests.
limit_except POST { deny all; }
# Content-Length should be valid, but it is anyway checked on FastCGI app's code side.
# Content-Type should be application/alohalytics-binary-blob
if ($content_type != "application/alohalytics-binary-blob") {
return 415; # Unsupported Media Type
}
if ($http_content_encoding != "gzip") {
return 400; # Bad Request
}
client_body_buffer_size 1M;
client_body_temp_path /tmp 2;
client_max_body_size 100M;
access_log /var/log/nginx/aloha-$OS-access.log alohalytics;
# Unfortunately, error_log does not support variables.
error_log /var/log/nginx/aloha-error.log notice;
fastcgi_pass_request_headers on;
fastcgi_param REMOTE_ADDR $remote_addr;
fastcgi_param REQUEST_URI $request_uri;
fastcgi_pass 127.0.0.1:8888;
}
}
}
*/
// clang-format on
#include <cerrno>
#include <chrono>