hello sir ..
i am student of final computer science and engg ..
i read the whole apache server code and understand the concepts ..
i want to submit also apache documets to open source community which i prepare
for that but sir i have one problem regarding filter inmplentation here.. plz send me correct solution for that ..
the problem is follows as :
i write one filter module just for appending string to html document what ever i request in brower . i compiled my code successfully , install and added by using
apxs -c -i -a append_module.c on linux platform .
i put one fprintf statment to see the really filter
register or not . but sir meg printed in error fiile .
that mean it evocks the register_hook but i can't say anything
after that what is going to happen with my code .
i set httpd.conf file
by using
SetOutputFilter APPEND
in proper way .
and also i use
AddOutputFilter APPEND .html
but it doesn't works . currently i am planing to write filter to add more functionality in apache . but sir if i fail to run very simple code then how can i proceed for big code .. so sir plz send me correct modification if needed and needed configuration to run this module succssfully i have 2.0.46 distribution ...
here is my code :
#include "apr_strings.h" #include "util_filter.h" #include "http_request.h" #include "http_core.h" #include "http_protocol.h" #include "http_log.h" #include "http_main.h" #include "ap_config.h" #include "http_config.h" #include "httpd.h" #include "apr_general.h" #include "apr_buckets.h" #include "apr_tables.h"
module AP_MODULE_DECLARE_DATA append_module;
static int append_filter(ap_filter_t *f, apr_bucket_brigade *bb)
{
apr_bucket *e, *n;
request_rec *r = f->r;
conn_rec *c = r->connection;
char *date_val;
apr_size_t len ;
char *buff ;
buff=apr_bucket_alloc(len, c->bucket_alloc);
buff[0]='v';
buff[1]='i';
buff[2]='s';
buff[3]='h';
buff[4]='a';
buff[5]='l';fprintf(stderr,"hello vishal , we r now in footer handler ");
if(!strncasecmp(f->r->content_type, "text/html", 9))
{
e=APR_BRIGADE_LAST(bb);
if (APR_BUCKET_IS_EOS(e))
{
n= apr_bucket_pool_create(buff ,len,f->r->pool , f->c->bucket_alloc );
APR_BUCKET_INSERT_BEFORE(e, n);
apr_table_unset(f->r->headers_out, "ETag");
apr_table_unset(f->r->headers_out, "Last-Modified");
}
}
ap_pass_brigade(f->next, bb);
return APR_SUCCESS;
}
static void footer_register_hook(apr_pool_t *p)
{
fprintf(stderr,"hello vishal , we r now in register hook ");
ap_register_output_filter("FOOTERFILTER", footer_filter,NULL, AP_FTYPE_CONTENT_SET);
}
module AP_MODULE_DECLARE_DATA footer_module =
{
STANDARD20_MODULE_STUFF,
NULL,
NULL,
NULL,
NULL,
NULL,
append_register_hook
};
so sir plz help me ..
vishal ruikar
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