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/* ====================================================================
* Copyright (c) 1995-1997 The Apache Group. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the Apache Group
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* 4. The names "Apache Server" and "Apache Group" must not be used to
* endorse or promote products derived from this software without
* prior written permission.
*
* 5. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the Apache Group
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Group and was originally based
* on public domain software written at the National Center for
* Supercomputing Applications, University of Illinois, Urbana-Champaign.
* For more information on the Apache Group and the Apache HTTP server
* project, please see <http://www.apache.org/>.
*
*/
/*
* Info Module. Display configuration information for the server and
* all included modules.
*
* <Location /server-info>
* SetHandler server-info
* </Location>
*
* GET /server-info - Returns full configuration page for server and all modules
* GET /server-info?server - Returns server configuration only
* GET /server-info?module_name - Returns configuration for a single module
* GET /server-info?list - Returns quick list of included modules
*
* Rasmus Lerdorf <rasmus@vex.net>, May 1996
*
* 05.01.96 Initial Version
*
* Lou Langholtz <ldl@usi.utah.edu>, July 1997
*
* 07.11.97 Addition of the AddModuleInfo directive
*
*/
#include "httpd.h"
#include "http_config.h"
#include "http_core.h"
#include "http_log.h"
#include "http_main.h"
#include "http_protocol.h"
#include "util_script.h"
#include "http_conf_globals.h"
typedef struct {
char *name; /* matching module name */
char *info; /* additional info */
} mod_info_entry;
typedef struct {
array_header *more_info;
} mod_info_server_conf;
typedef struct mod_info_config_lines {
char *cmd;
char *line;
struct mod_info_config_lines *next;
} mod_info_config_lines;
module MODULE_VAR_EXPORT info_module;
extern module *top_module;
void *create_info_config(pool *p, server_rec *s)
{
mod_info_server_conf *conf = (mod_info_server_conf *)
pcalloc(p, sizeof(mod_info_server_conf));
conf->more_info = make_array(p, 20, sizeof(mod_info_entry));
return conf;
}
void *merge_info_config(pool *p, void *basev, void *overridesv)
{
mod_info_server_conf *new = (mod_info_server_conf *)
pcalloc(p, sizeof(mod_info_server_conf));
mod_info_server_conf *base = (mod_info_server_conf *)basev;
mod_info_server_conf *overrides = (mod_info_server_conf *)overridesv;
new->more_info = append_arrays(p, overrides->more_info, base->more_info);
return new;
}
char *mod_info_html_cmd_string(char *string) {
char *s,*t;
static char ret[256]; /* What is the max size of a command? */
char *end_ret;
ret[0]='\0';
s = string;
t=ret;
end_ret = t + sizeof(ret);
while((*s) && ((t-ret) < sizeof(ret))) {
if(*s=='<') {
strncpy(t,"<", end_ret - t);
t+=4;
} else if(*s=='>') {
strncpy(t,">", end_ret - t);
t+=4;
} else if(*s=='&') {
strncpy(t,"&", end_ret - t);
t+=5;
} else {
*t++=*s;
}
s++;
}
*t='\0';
return(ret);
}
mod_info_config_lines *mod_info_load_config(pool *p, char *filename, request_rec *r) {
char s[MAX_STRING_LEN];
FILE *fp;
mod_info_config_lines *new, *ret=NULL, *prev=NULL;
char *t,*tt,o, *msg;
fp = pfopen(p,filename,"r");
if(!fp) {
msg = pstrcat
(
r->pool,
"mod_info: couldn't open config file ",
filename,
NULL
);
log_error (msg, r->server);
return NULL;
}
while(!cfg_getline(s,MAX_STRING_LEN,fp)) {
if(*s=='#') continue; /* skip comments */
new = palloc(p,sizeof(struct mod_info_config_lines));
new->next = NULL;
if(!ret) ret=new;
if(prev) prev->next=new;
t=strchr(s,' ');
tt=strchr(s,'\t');
if(t && tt) t = (t<tt)?t:tt;
else if(tt) t=tt;
if(t) {
o=*t;
*t='\0';
new->cmd = pstrdup(p,s);
new->line = pstrdup(p,t+1);
*t=o;
} else {
new->cmd = pstrdup(p,s);
new->line = NULL;
}
prev=new;
}
pfclose(p,fp);
return(ret);
}
void mod_info_module_cmds(request_rec *r, mod_info_config_lines *cfg, command_rec *cmds,char *label) {
command_rec *cmd=cmds;
mod_info_config_lines *li=cfg,*li_st=NULL,*li_se=NULL,*block_start=NULL;
int lab=0, nest=0;
while(li) {
if(!strncasecmp(li->cmd,"<directory",10) ||
!strncasecmp(li->cmd,"<location",9) ||
!strncasecmp(li->cmd,"<limit",6) ||
!strncasecmp(li->cmd,"<files",6)) {
if(nest) li_se=li;
else li_st=li;
li=li->next;
nest++;
continue;
} else if(nest && (!strncasecmp(li->cmd,"</limit",7) ||
!strncasecmp(li->cmd,"</location",10) ||
!strncasecmp(li->cmd,"</directory",11) ||
!strncasecmp(li->cmd,"</files",7))) {
if(block_start) {
if((nest==1 && block_start==li_st) || (nest==2 && block_start==li_se)) {
rputs("<dd><tt>",r);
if(nest==2) rputs(" ",r);
rputs(mod_info_html_cmd_string(li->cmd),r);
rputs(" ",r);
if(li->line) rputs(mod_info_html_cmd_string(li->line),r);
rputs("</tt>\n",r);
nest--;
if(!nest) {
block_start=NULL;
li_st=NULL;
} else {
block_start=li_st;
}
li_se=NULL;
} else {
nest--;
if(!nest) {
li_st=NULL;
}
li_se=NULL;
}
} else {
nest--;
if(!nest) {
li_st=NULL;
}
li_se=NULL;
}
li=li->next;
continue;
}
cmd = cmds;
while(cmd) {
if(cmd->name) {
if(!strcasecmp(cmd->name,li->cmd)) {
if(!lab) {
rputs("<dt><strong>",r);
rputs(label,r);
rputs("</strong>\n",r);
lab=1;
}
if(((nest && block_start==NULL) || (nest==2 && block_start==li_st))
&& (strncasecmp(li->cmd,"<directory",10) &&
strncasecmp(li->cmd,"<location",9) && strncasecmp(li->cmd,"<limit",6) &&
strncasecmp(li->cmd,"</limit",7) && strncasecmp(li->cmd,"</location",10) &&
strncasecmp(li->cmd,"</directory",11) &&
strncasecmp(li->cmd,"</files",7))) {
rputs("<dd><tt>",r);
rputs(mod_info_html_cmd_string(li_st->cmd),r);
rputs(" ",r);
if(li_st->line) rputs(mod_info_html_cmd_string(li_st->line),r);
rputs("</tt>\n",r);
block_start=li_st;
if(li_se) {
rputs("<dd><tt> ",r);
rputs(mod_info_html_cmd_string(li_se->cmd),r);
rputs(" ",r);
if(li_se->line) rputs(mod_info_html_cmd_string(li_se->line),r);
rputs("</tt>\n",r);
block_start=li_se;
}
}
rputs("<dd><tt>",r);
if(nest) rputs(" ",r);
if(nest==2) rputs(" ",r);
rputs(mod_info_html_cmd_string(li->cmd),r);
if(li->line) {
rputs(" <i>",r);
rputs(mod_info_html_cmd_string(li->line),r);
rputs("</i></tt>",r);
}
}
} else break;
cmd++;
}
li = li->next;
}
}
char *find_more_info(server_rec *serv, const char *module_name)
{
int i;
mod_info_server_conf *conf = (mod_info_server_conf *)
get_module_config(serv->module_config,&info_module);
mod_info_entry *entry = (mod_info_entry *)conf->more_info->elts;
if (!module_name) return 0;
for (i = 0; i < conf->more_info->nelts; i++) {
if (!strcmp(module_name, entry->name)) {
return entry->info;
}
entry++;
}
return 0;
}
int display_info(request_rec *r) {
module *modp = NULL;
char buf[512], *cfname;
char *more_info;
command_rec *cmd=NULL;
handler_rec *hand=NULL;
server_rec *serv = r->server;
int comma=0;
mod_info_config_lines *mod_info_cfg_httpd=NULL;
mod_info_config_lines *mod_info_cfg_srm=NULL;
mod_info_config_lines *mod_info_cfg_access=NULL;
r->content_type = "text/html";
send_http_header(r);
if(r->header_only) {
return 0;
}
hard_timeout("send server info", r);
rputs("<html><head><title>Server Information</title></head>\n",r);
rputs("<body><h1 align=center>Apache Server Information</h1>\n",r);
if(!r->args || strcasecmp(r->args,"list")) {
cfname = server_root_relative (r->pool, server_confname);
mod_info_cfg_httpd = mod_info_load_config (r->pool, cfname, r);
cfname = server_root_relative (r->pool, serv->srm_confname);
mod_info_cfg_srm = mod_info_load_config(r->pool, cfname, r);
cfname = server_root_relative (r->pool, serv->access_confname);
mod_info_cfg_access = mod_info_load_config (r->pool, cfname, r);
if(!r->args) {
rputs("<tt><a href=\"#server\">Server Settings</a>, ",r);
for(modp = top_module; modp; modp = modp->next) {
ap_snprintf(buf, sizeof(buf), "<a href=\"#%s\">%s</a>",modp->name,modp->name);
rputs(buf, r);
if(modp->next) rputs(", ",r);
}
rputs("</tt><hr>",r);
}
if(!r->args || !strcasecmp(r->args,"server")) {
ap_snprintf(buf, sizeof(buf), "<a name=\"server\"><strong>Server Version:</strong> <font size=+1><tt>%s</tt></a></font><br>\n",SERVER_VERSION);
rputs(buf,r);
ap_snprintf(buf, sizeof(buf), "<strong>API Version:</strong> <tt>%d</tt><br>\n",MODULE_MAGIC_NUMBER);
rputs(buf,r);
ap_snprintf(buf, sizeof(buf), "<strong>Run Mode:</strong> <tt>%s</tt><br>\n",standalone?"standalone":"inetd");
rputs(buf,r);
ap_snprintf(buf, sizeof(buf), "<strong>User/Group:</strong> <tt>%s(%d)/%d</tt><br>\n",user_name,(int)user_id,(int)group_id);
rputs(buf,r);
ap_snprintf(buf, sizeof(buf), "<strong>Hostname/port:</strong> <tt>%s:%u</tt><br>\n",serv->server_hostname,serv->port);
rputs(buf,r);
ap_snprintf(buf, sizeof(buf), "<strong>Daemons:</strong> <tt>start: %d min idle: %d max idle: %d max: %d</tt><br>\n",daemons_to_start,daemons_min_free,daemons_max_free,daemons_limit);
rputs(buf,r);
ap_snprintf(buf, sizeof(buf), "<strong>Max Requests:</strong> <tt>per child: %d keep alive: %s max per connection: %d</tt><br>\n",max_requests_per_child,serv->keep_alive ? "on":"off", serv->keep_alive_max);
rputs(buf,r);
ap_snprintf(buf, sizeof(buf), "<strong>Threads:</strong> <tt>per child: %d </tt><br>\n",threads_per_child);
rputs(buf,r);
ap_snprintf(buf, sizeof(buf), "<strong>Excess requests:</strong> <tt>per child: %d </tt><br>\n",excess_requests_per_child);
rputs(buf,r);
ap_snprintf(buf, sizeof(buf), "<strong>Timeouts:</strong> <tt>connection: %d keep-alive: %d</tt><br>",serv->timeout,serv->keep_alive_timeout);
rputs(buf,r);
ap_snprintf(buf, sizeof(buf), "<strong>Server Root:</strong> <tt>%s</tt><br>\n",server_root);
rputs(buf,r);
ap_snprintf(buf, sizeof(buf), "<strong>Config File:</strong> <tt>%s</tt><br>\n",server_confname);
rputs(buf,r);
ap_snprintf(buf, sizeof(buf), "<strong>PID File:</strong> <tt>%s</tt><br>\n",pid_fname);
rputs(buf,r);
ap_snprintf(buf, sizeof(buf), "<strong>Scoreboard File:</strong> <tt>%s</tt><br>\n",scoreboard_fname);
rputs(buf,r);
}
rputs("<hr><dl>",r);
for(modp = top_module; modp; modp = modp->next) {
if(!r->args || !strcasecmp(modp->name,r->args)) {
ap_snprintf(buf, sizeof(buf), "<dt><a name=\"%s\"><strong>Module Name:</strong> <font size=+1><tt>%s</tt></a></font>\n",modp->name,modp->name);
rputs(buf,r);
rputs("<dt><strong>Content-types affected:</strong>",r);
hand = modp->handlers;
if(hand) {
while(hand) {
if(hand->content_type) {
ap_snprintf(buf, sizeof(buf), " <tt>%s</tt>\n",hand->content_type);
rputs(buf,r);
} else break;
hand++;
if(hand && hand->content_type) rputs(",",r);
}
} else {
rputs("<tt> none</tt>",r);
}
rputs("<dt><strong>Module Groups:</strong> \n",r);
if(modp->translate_handler) {
rputs("<tt>Translate Handler</tt>\n",r);
comma=1;
}
if(modp->check_user_id) {
if(comma) rputs(", ",r);
rputs("<tt>User ID Checking</tt>\n",r);
comma=1;
}
if(modp->auth_checker) {
if(comma) rputs(", ",r);
rputs("<tt>Authentication Checking</tt>\n",r);
comma=1;
}
if(modp->access_checker) {
if(comma) rputs(", ",r);
rputs("<tt>Access Checking</tt>\n",r);
comma=1;
}
if(modp->type_checker) {
if(comma) rputs(", ",r);
rputs("<tt>Type Checking</tt>\n",r);
comma=1;
}
if(modp->fixer_upper) {
if(comma) rputs(", ",r);
rputs("<tt>Header Fixer</tt>\n",r);
comma=1;
}
if(modp->logger) {
if(comma) rputs(", ",r);
rputs("<tt>Logging</tt>\n",r);
comma=1;
}
if(!comma) rputs("<tt> none</tt>",r);
comma=0;
rputs("<dt><strong>Module Configuration Commands:</strong> ",r);
cmd = modp->cmds;
if(cmd) {
while(cmd) {
if(cmd->name) {
ap_snprintf(buf, sizeof(buf), "<dd><tt>%s - <i>",mod_info_html_cmd_string(cmd->name));
rputs(buf,r);
if(cmd->errmsg) rputs(cmd->errmsg,r);
rputs("</i></tt>\n",r);
} else break;
cmd++;
}
rputs("<dt><strong>Current Configuration:</strong>\n",r);
mod_info_module_cmds(r,mod_info_cfg_httpd,modp->cmds,"httpd.conf");
mod_info_module_cmds(r,mod_info_cfg_srm,modp->cmds,"srm.conf");
mod_info_module_cmds(r,mod_info_cfg_access,modp->cmds,"access.conf");
} else {
rputs("<tt> none</tt>\n",r);
}
more_info = find_more_info(serv, modp->name);
if (more_info) {
rputs("<dt><strong>Additional Information:</strong>\n<dd>",r);
rputs(more_info,r);
}
rputs("<dt><hr>\n",r);
if(r->args) break;
}
}
if(!modp && r->args && strcasecmp(r->args,"server")) rputs("<b>No such module</b>\n",r);
} else {
for(modp = top_module; modp; modp = modp->next) {
rputs(modp->name,r);
if(modp->next) rputs("<br>",r);
}
}
rputs("</dl></body></html>\n",r);
/* Done, turn off timeout, close file and return */
kill_timeout(r);
return 0;
}
const char *add_module_info(cmd_parms *cmd, void *dummy, char *name, char *info)
{
server_rec *s = cmd->server;
mod_info_server_conf *conf = (mod_info_server_conf *)
get_module_config(s->module_config,&info_module);
mod_info_entry *new = push_array(conf->more_info);
new->name = name;
new->info = info;
return NULL;
}
command_rec info_cmds[] = {
{ "AddModuleInfo", add_module_info, NULL, RSRC_CONF, TAKE2,
"a module name and additional information on that module"},
{ NULL }
};
handler_rec info_handlers[] = {
{ "server-info", display_info },
{ NULL }
};
module MODULE_VAR_EXPORT info_module = {
STANDARD_MODULE_STUFF,
NULL, /* initializer */
NULL, /* dir config creater */
NULL, /* dir merger --- default is to override */
create_info_config, /* server config */
merge_info_config, /* merge server config */
info_cmds, /* command table */
info_handlers, /* handlers */
NULL, /* filename translation */
NULL, /* check_user_id */
NULL, /* check auth */
NULL, /* check access */
NULL, /* type_checker */
NULL, /* fixups */
NULL, /* logger */
NULL, /* header parser */
NULL /* child_init */
};
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