I write hook module for Apache2 consisted of hooks of 2 procedures: ap_hook_check_authn/ap_hook_check_user_id and ap_hook_handler. This module reads content of post method request, mainly body, and extract necessary information for functioning of the each of mentioned above procedure. For 1st one - it is user/password passed from clients at post request body, for 2nd one - it is some data. That is reading post request body content from brigades/buckets and saving it into char buffer is called twice - from ap_hook_check_authn and and ap_hook_handler. But after callig reading post request body content reading function for the first time from ap_hook_check_authn, other calling of the function (from ap_hook_handler) returns an empty body buffer. Even other calling of post request body content reading function from ap_hook_check returns already an emptybody biffer.
I read post body to a buffer at the following way: 1. apr_brigade_create 2. do-while cycle until eos_bucket is got set to 1 3. within the point 2 cycle ap_get_brigade 4. in for (bucket = APR_BRIGADE_FIRST(bb); bucket != APR_BRIGADE_SENTINEL(bb); bucket = APR_BUCKET_NEXT(bucket)) if bucket EOS then eos_bucket set to 1 else (transien bucket) apr_bucket_read is called and then all chunks are reads to buffer 5. body buffer and its len is got finally But in such pot body reading all buckest are deleted from brigade (not by me) . So what is the best way to read post body content to a buffer as many times as necessary as at ap_hook_check_authn step as at ap_hook_handler step without loosing the content ? Or may be it's more efficiency to read post body content once at ap_hook_check_authn and then pass it to ap_hook_handler ? But I don' t understand now how. P. S.: Way of calling of r->kept_body = apr_brigade_create(r->pool, r->connection->bucket_alloc); apr_bucket *bucketnew = apr_bucket_transient_create(bodycontent, bodysize, r->connection->bucket_alloc); APR_BRIGADE_INSERT_TAIL(r->kept_body, bucketnew); after 1st calling of post request body content reading function worked for some versions ago (may be even for 2.2 only) . But it doesn' t work now.
