Thanks for the reply Sorin. Does the number of bytes sent written by the log take into account the fact that a browser could cancel the request halfway through?
For example, if a client request a 100MB file, and cancel the transfer after 50MB, will the log report 50MB? Julien -----Original Message----- From: Sorin Manolache [mailto:sor...@gmail.com] Sent: Friday, November 06, 2015 9:29 AM To: modules-dev@httpd.apache.org Subject: Re: Tracking sent responses On 2015-11-06 15:12, Julien FROMENT wrote: > Hello, > > > > We would like to use Apache HTTP Server to keep track of exactly what > part of the response was sent over a socket. Apache could call an API > asynchronously with the number of bytes sent over the socket for a > given request. > > > > Here is the pseudo code: > > -- Client send a request > > -- Apache processes the request and send it to the backend server > > ... > > -- The backend server returns the response > > -- Apache sends the response to the client > > -- Apache calls Async API with the number of bytes sent > Relaying the client request to a backend server may be realised with the ProxyPass and RewriteRule directives. Apache may log the number of bytes sent. See http://httpd.apache.org/docs/current/mod/mod_log_config.html#formats, the %B and %O flags. The log can be configured to be 1. appended to a file 2. sent to syslog (which in turn may forward it over udp/tcp to a log-host) 3. piped to an external program The first two options do not require any development from your part. If you really need that the number of bytes is sent to an http server, then you could write an external program that reads one line at a time from standard input and sends the line that it read to an http server. Regards, Sorin # " Ce courriel et les documents qui lui sont joints peuvent contenir des informations confidentielles ou ayant un caractè privéS'ils ne vous sont pas destiné nous vous signalons qu'il est strictement interdit de les divulguer, de les reproduire ou d'en utiliser de quelque maniè que ce soit le contenu. Si ce message vous a é transmis par erreur, merci d'en informer l'expéteur et de supprimer imméatement de votre systè informatique ce courriel ainsi que tous les documents qui y sont attaché" ****** " This e-mail and any attached documents may contain confidential or proprietary information. If you are not the intended recipient, you are notified that any dissemination, copying of this e-mail and any attachments thereto or use of their contents by any means whatsoever is strictly prohibited. If you have received this e-mail in error, please advise the sender immediately and delete this e-mail and all attached documents from your computer system." # # " Ce courriel et les documents qui lui sont joints peuvent contenir des informations confidentielles ou ayant un caractè privéS'ils ne vous sont pas destiné nous vous signalons qu'il est strictement interdit de les divulguer, de les reproduire ou d'en utiliser de quelque maniè que ce soit le contenu. Si ce message vous a é transmis par erreur, merci d'en informer l'expéteur et de supprimer imméatement de votre systè informatique ce courriel ainsi que tous les documents qui y sont attaché" ****** " This e-mail and any attached documents may contain confidential or proprietary information. If you are not the intended recipient, you are notified that any dissemination, copying of this e-mail and any attachments thereto or use of their contents by any means whatsoever is strictly prohibited. If you have received this e-mail in error, please advise the sender immediately and delete this e-mail and all attached documents from your computer system." #
