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mod_vstatus.c
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mod_vstatus.c
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#include "apr.h"
#ifdef _WIN32
// use apr_atomic.h on Win32 for proper DLL linkage
#include "apr_atomic.h"
#ifdef _MSC_VER
// Oh the noise!
#pragma warning( disable : 4047 90 4101 4133 4244 )
#endif
#endif
#include "apr_strings.h"
#include "apr_lib.h"
#include "apr_version.h"
#include "apu_version.h"
#include "apr_want.h"
#include "httpd.h"
#include "http_config.h"
#include "http_core.h"
#include "http_log.h"
#include "http_main.h"
#include "http_protocol.h"
#include "http_connection.h"
#include "http_request.h"
#include "util_script.h"
#include "ap_mpm.h"
#include "mod_vstatus.h"
#ifdef APLOG_USE_MODULE
APLOG_USE_MODULE(vstatus);
#endif
module AP_MODULE_DECLARE_DATA vstatus_module;
//#define DEBUG 1
#ifndef DEFAULT_TIME_FORMAT
#define DEFAULT_TIME_FORMAT "%A, %d-%b-%Y %H:%M:%S %Z"
#endif
#define TIMESTAMP_TIME_FORMAT "%s"
#define SHM_FILENAME "VSTATUS_SHM"
#define MOD_COPYRIGHT_STRING "<HR><I>mod_vstatus "VERSION" -- Christopher Kreitz <c.kreitz@macrocom.de> -- <a href=\"http://www.macrocom.de/\">http://www.macrocom.de</a></i>"
#define CODES_TRACKED 47
static const int vstatus_tracked_status[] = {
0,1,2,3,4,5,
100,101,
200,201,202,203,204,205,206,
300,301,302,303,304,305,306,307,
400,401,402,403,404,405,406,407,408,409,410,411,412,413,414,415,416,417,
500,501,502,503,504,505
};
static const char* help[] = {
"sec10","sec10.1","sec10.2","sec10.3","sec10.4","sec10.5",
"sec10.1.1","sec10.1.",
"sec10.2.1","sec10.2.2","sec10.2.3","sec10.2.4","sec10.2.5","sec10.2.6","sec10.2.7",
"sec10.3.1","sec10.3.2","sec10.3.3","sec10.3.4","sec10.3.5","sec10.3.6","sec10.3.7","sec10.3.8",
"sec10.4.1","sec10.4.2","sec10.4.3","sec10.4.4","sec10.4.5","sec10.4.6","sec10.4.7","sec10.4.8","sec10.4.9","sec10.4.10","sec10.4.11","sec10.4.12","sec10.4.13","sec10.4.14","sec10.4.15","sec10.4.16","sec10.4.17","sec10.4.18",
"sec10.5.1","sec10.5.2","sec10.5.3","sec10.5.4","sec10.5.5","sec10.5.6"
};
typedef struct vstatus_s{
char *hostname;
apr_uint32_t resultcode[CODES_TRACKED]; //Count Requests/code
}vstatus_data;
typedef struct {
int timestamp;
vstatus_data *data;
} vstatus_ringbuffer;
typedef struct {
apr_hash_t* filter;
apr_hash_t* format;
apr_hash_t* delta;
apr_hash_t* type;
apr_hash_t* comment;
apr_pool_t* pool;
int histSize;
int granularity;
const char *header_string;
const char *use_stylesheet;
#ifdef _WIN32
const char *computername;
#endif
} vstatus_cfg;
volatile int *bucket;
int *old_bucket;
apr_shm_t *shm;
vstatus_ringbuffer *rbuffer;
vstatus_cfg *gconf;
static int num_vhosts = 0;
int print_status_page(request_rec * r);
int handle_html(request_rec * r,int rel,int delta,int dump);
int handle_json(request_rec * r,int rel,int delta,int dump);
int handle_csv(request_rec * r,int rel,int delta,int dump);
int handle_google(request_rec * r);
int handle_else(request_rec * r);
#ifndef _WIN32
// using apr_atomic.h on Win32 for proper DLL linkage
apr_status_t apr_atomic_init(apr_pool_t *p);
apr_uint32_t apr_atomic_inc32(volatile apr_uint32_t *mem);
apr_uint32_t apr_atomic_read32(volatile apr_uint32_t *mem);
void apr_atomic_set32(volatile apr_uint32_t *mem,apr_uint32_t val);
void apr_hash_this(apr_hash_index_t *hi, const void **key, apr_ssize_t *klen, void **val);
#endif
unsigned long hostindex(char *str){
int i;
if(str==NULL)
return 0;
for (i=0;i<num_vhosts;i++){
if(strcmp(str,rbuffer[0].data[i].hostname)==0){
return i; //Count for Domainname
}
}
return 1; //Count for IP/Servername
}
static int logRequest(request_rec * r){
int c=0;
unsigned int loc=0;
loc=hostindex(r->server->server_hostname);
#ifdef DEBUG
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,"mod_reqstatus : *bucket = %u",*bucket);
#endif
for (c=0; c < CODES_TRACKED; c++) {
if (vstatus_tracked_status[c] == r->status) {
#ifdef DEBUG
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,"mod_reqstatus : c = %u",c);
#endif
apr_atomic_inc32(&rbuffer[*bucket].data[loc].resultcode[c]);
apr_atomic_inc32(&rbuffer[*bucket].data[0].resultcode[c]);
}
}
apr_atomic_inc32(&rbuffer[*bucket].data[0].resultcode[r->status/100]);
apr_atomic_inc32(&rbuffer[*bucket].data[loc].resultcode[r->status/100]);
apr_atomic_inc32(&rbuffer[*bucket].data[0].resultcode[0]);
apr_atomic_inc32(&rbuffer[*bucket].data[loc].resultcode[0]);
return DECLINED;
}
int getCounter(int code){
int i;
for(i=0;i<CODES_TRACKED;i++){
if(code == vstatus_tracked_status[i]){
return i;
}
}
return 0;
}
apr_time_t getTime(apr_time_t time){
return (apr_time_sec(time)/gconf->granularity);
}
int handle(request_rec * r){
char *format;
char *key = r->path_info;
int delta,rel;
apr_uint32_t *val;
apr_time_t time = getTime(r->request_time);
if(key==NULL){
key="";
}else{
if(key[0]=='/'){
*key++; // remove foremost slash
}
}
if(apr_atomic_read32(&rbuffer[*bucket].timestamp)<time){
apr_atomic_inc32(bucket);
// apr_atomic_cas32(bucket,0,gconf->histSize); //Resets the bucket to zero, if max size is reached
// if(*bucket>=gconf->histSize){
// ap_log_rerror(APLOG_MARK, APLOG_EMERG, 0, r,"Bucket exeeded Range!: %i (%i)",*bucket,gconf->histSize);
// apr_atomic_set32(bucket,0); //Emergency handler
// }
*bucket%=gconf->histSize;
apr_atomic_set32(&rbuffer[*bucket].timestamp,getTime(r->request_time));
memcpy(&rbuffer[*bucket].data[0],&rbuffer[*old_bucket].data[0],num_vhosts*sizeof(vstatus_data));
apr_atomic_set32(old_bucket,*bucket);
}
if (strncmp(r->handler, "vstatus",7) != 0) {
return DECLINED;
}
format= (char*)apr_hash_get (gconf->format, key, strlen(key));
if(format==NULL){
format="else";
}
val=(int*)apr_hash_get(gconf->delta,key,strlen(key));
if(val==NULL){
delta=1;
}else{
delta=atoi(val);
}
char* t = (char*)apr_hash_get (gconf->type, key, strlen(key));
if((t==NULL)||(strcmp(t,"rel")==0)){
rel=1;
}else{
rel=0;
}
// if (strcmp(r->handler, "vstatus") == 0) {
if(strcmp(r->path_info,"/status.html")==0){
return print_status_page(r);
}
ap_log_rerror(APLOG_MARK, APLOG_NOTICE, 0, r,"mod_vstatus: FILENAME: **%s**",r->path_info);
if(strcmp(format,"json")==0){
return handle_json(r,rel,delta,0);
}else if(strcmp(format,"csv")==0){
return handle_csv(r,rel,delta,0);
}else if(strcmp(format,"html")==0){
return handle_html(r,rel,delta,0);
}else if(strcmp(format,"google")==0){
return handle_google(r);
}else if(strcmp(format,"dump-csv")==0){
return handle_csv(r,rel,delta,1);
}else if(strcmp(format,"dump-json")==0){
return handle_json(r,rel,delta,1);
}else if(strcmp(format,"dump-html")==0){
return handle_html(r,rel,delta,1);
}else{
return handle_else(r);
}
// }
return DECLINED;
}
int getDeltaPos(int pos, int delta){
int i=0;
int deltapos=(((pos-(delta/gconf->granularity))+gconf->histSize)%gconf->histSize)-1;
for(i=0;i<gconf->histSize;i++){
deltapos++;
deltapos%=gconf->histSize;
if(rbuffer[deltapos].timestamp!=0){
if((rbuffer[(pos+gconf->histSize-1)%gconf->histSize].timestamp-delta - rbuffer[deltapos].timestamp)<= (delta/gconf->granularity)){
i=gconf->histSize;
}
}else{
// i=gconf->histSize;
deltapos=pos;
break;
}
}
return deltapos;
}
int print_status_page(request_rec * r){
int i=0;
ap_set_content_type(r, "text/html");
ap_rputs(DOCTYPE_HTML_3_2"<html>\n<head>\n<title>mod_vstatus: internal config</title>\n",r);
ap_rputs(FAVICON,r);
ap_rputs(STYLESHEET,r);
if (gconf->header_string) {
ap_rvputs(r,"\n",gconf->header_string);
}
if (gconf->use_stylesheet) {
ap_rvputs(r,"\n<link rel=\"stylesheet\" type=\"text/css\" href=\"",
gconf->use_stylesheet,"\">");
}
ap_rputs("\n</head>\n<body>\n",r);
ap_rputs("<center><table cellpadding='10' cellspacing='0' border=0>\n",r);
ap_rputs("<tr><td>\n",r);
ap_rvputs(r,HEADERIMG,"\n");
ap_rputs("<h2>mod_vstatus: internal config", r);
ap_rputs("<hline>\n",r);
ap_rputs("<h2>Hosttable:</h2>", r);
ap_rputs("<table border=1>", r);
ap_rputs("<tr>", r);
ap_rputs("<th>", r);
ap_rputs("1", r);
ap_rputs("</th>", r);
ap_rputs("<th>", r);
ap_rputs("2", r);
ap_rputs("</th>", r);
ap_rputs("</tr>", r);
for (i=0;i<num_vhosts;i++){
ap_rputs("<tr>", r);
ap_rputs("<td>", r);
ap_rputs("3", r);
ap_rputs("</td>", r);
ap_rputs("<td>", r);
ap_rputs((char *) apr_psprintf(r->pool, "%s",rbuffer[0].data[i].hostname), r);
ap_rputs("</td>", r);
ap_rputs("</tr>", r);
}
ap_rputs("</table>", r);
ap_rputs("</body>\n",r);
ap_rputs("</html>\n",r);
return OK;
}
int handle_else(request_rec * r){
apr_hash_index_t *hi;
char* key;
char* val;
char* format;
int delta;
char* type;
ap_set_content_type(r, "text/html");
ap_rputs(DOCTYPE_HTML_3_2"<html>\n<head>\n<title>mod_vstatus: details</title>\n",r);
ap_rputs(FAVICON,r);
ap_rputs(STYLESHEET,r);
if (gconf->header_string) {
ap_rvputs(r,"\n",gconf->header_string);
}
if (gconf->use_stylesheet) {
ap_rvputs(r,"\n<link rel=\"stylesheet\" type=\"text/css\" href=\"",
gconf->use_stylesheet,"\">");
}
ap_rputs("\n</head>\n<body>\n",r);
ap_rputs("<center><table cellpadding='10' cellspacing='0' border=0>\n",r);
ap_rputs("<tr><td>\n",r);
ap_rvputs(r,HEADERIMG,"\n");
ap_rputs("<h2>mod_vstatus: internal config", r);
#ifdef _WIN32
ap_rputs(gconf->computername,r);
#else
ap_rputs((char *) apr_psprintf(r->pool, "%s",r->server->server_hostname),r);
#endif
ap_rputs("</h2>\n",r);
ap_rvputs(r,"<dt><font class=\"ctime\">Current Time: ",ap_ht_time(r->pool, apr_time_now(), DEFAULT_TIME_FORMAT, 0),"</font></dt>\n", NULL);
ap_rputs((char *) apr_psprintf(r->pool, "Number of Filters: %i",apr_hash_count (gconf->format)),r);
ap_rputs("<hr>\n",r);
ap_rputs("Global Options:<br>\n",r);
ap_rputs((char *) apr_psprintf(r->pool, "History size: %i<br>\n",gconf->histSize),r);
ap_rputs((char *) apr_psprintf(r->pool, "Bucket: %i <br><BR>\n",*bucket),r);
ap_rputs("The following Filters are defined:<br>\n",r);
ap_rputs("<table border=1>",r);
ap_rputs("<tr><th>Filter</th><th>Format</th><th>Delta</th><th>Type</th><th>Comment</th></tr>",r);
ap_rputs("<hr>\n",r);
for (hi = apr_hash_first(r->pool, gconf->format); hi; hi = apr_hash_next(hi)) {
apr_hash_this(hi, &key, NULL, &val);
format= (char*)apr_hash_get (gconf->format, key, strlen(key));
if(format==NULL){
format="else";
}
val=(int*)apr_hash_get(gconf->delta,key,strlen(key));
if(val==NULL){
delta=1;
}else{
delta=atoi(val);
}
type = (char*)apr_hash_get (gconf->type, key, strlen(key));
if(type==NULL){
type="";
}
char* comment = (char*)apr_hash_get (gconf->comment, key, strlen(key));
if(comment==NULL){
comment="";
}
ap_rputs("<tr>\n",r);
ap_rputs((char *) apr_psprintf(r->pool, "<td><a href=%s/%s>%s</a></td>\n",r->uri,key,key),r);
ap_rputs((char *) apr_psprintf(r->pool, "<td>%s</td>\n",format),r);
ap_rputs((char *) apr_psprintf(r->pool, "<td>%i</td>\n",delta),r);
ap_rputs((char *) apr_psprintf(r->pool, "<td>%s</td>\n",type),r);
ap_rputs((char *) apr_psprintf(r->pool, "<td>%s</td>\n",comment),r);
ap_rputs("</tr>\n",r);
}
ap_rputs("</table>",r);
ap_rputs(MOD_COPYRIGHT_STRING,r);
ap_rputs("</body>",r);
ap_rputs("</html>",r);
return OK;
}
int handle_html(request_rec * r,int rel,int delta,int dump){
apr_array_header_t* val;
const int *codes;
int num_codes;
int i,j;
char *f = r->path_info;
*f++; // remove foremost slash
int pos=((*old_bucket-1)+gconf->histSize)%gconf->histSize;
int deltapos=getDeltaPos(pos,delta);
char* type = (char*)apr_hash_get (gconf->type, f, strlen(f));
if(type==NULL){
type="rel";
}
val = apr_hash_get (gconf->filter, f, strlen(f));
char* fmt = apr_hash_get (gconf->format ,f, strlen(f));
if(val==NULL){
codes=vstatus_tracked_status;
num_codes=CODES_TRACKED;
}else{
codes=(int*)val->elts;
num_codes=val->nelts;
}
ap_set_content_type(r, "text/html");
ap_rputs(DOCTYPE_HTML_3_2"<html>\n<head>\n<title>mod_vstatus: details</title>\n",r);
ap_rputs(FAVICON,r);
ap_rputs(STYLESHEET,r);
if (gconf->header_string) {
ap_rvputs(r,"\n",gconf->header_string);
}
if (gconf->use_stylesheet) {
ap_rvputs(r,"\n<link rel=\"stylesheet\" type=\"text/css\" href=\"",
gconf->use_stylesheet,"\">");
}
ap_rputs("\n</head>\n<body>\n",r);
ap_rputs("<center><table cellpadding='10' cellspacing='0' border=0>\n",r);
ap_rputs("<tr><td>\n",r);
ap_rputs(HEADERIMG,r);
ap_rputs("<h2>HTTP responses for ", r);
#ifdef _WIN32
ap_rputs(gconf->computername,r);
#else
ap_rputs((char *) apr_psprintf(r->pool, "%s",r->server->server_hostname),r);
#endif
ap_rputs("</h2>\n",r);
ap_rvputs(r,"<dt><font class=\"ctime\">Current Time: ",ap_ht_time(r->pool, apr_time_now(), DEFAULT_TIME_FORMAT, 0),"</font></dt>\n", NULL);
ap_rputs("<hr>\n",r);
#ifdef DEBUG
ap_rputs((char *) apr_psprintf(r->pool, "pos : %i %"APR_INT64_T_FMT"<br>",pos,rbuffer[pos].timestamp),r);
ap_rputs((char *) apr_psprintf(r->pool, "deltapos: %i %"APR_INT64_T_FMT"<br>",deltapos,rbuffer[deltapos].timestamp),r);
ap_rputs((char *) apr_psprintf(r->pool, "delta : %"APR_INT64_T_FMT" - %"APR_INT64_T_FMT" = %"APR_INT64_T_FMT"<br>",
rbuffer[pos].timestamp,
rbuffer[deltapos].timestamp,
(rbuffer[pos].timestamp-rbuffer[deltapos].timestamp)*gconf->granularity
),r);
ap_rputs((char *) apr_psprintf(r->pool, "Time : %i<br>",getTime(r->request_time)),r);
ap_rputs((char *) apr_psprintf(r->pool, "Format : %s<br>",fmt),r);
ap_rputs((char *) apr_psprintf(r->pool, "Gran: %i Hist %i<br>",gconf->granularity,gconf->histSize),r);
ap_rputs((char *) apr_psprintf(r->pool, "r->time : %"APR_INT64_T_FMT"<br>",apr_time_sec(r->request_time)),r);
#endif
ap_rputs("<table border = \"1\">\n",r);
ap_rputs("<tr>\n",r);
//Headline
ap_rputs("<td>Host</td>\n",r);
#ifdef DEBUG
ap_rputs("<td>Time</td>\n",r);
#endif
for(i=0;i<num_codes;i++){
switch (vstatus_tracked_status[getCounter(codes[i])]){
case 0:
ap_rputs("<td>Total</td>",r);
break;
case 1:
case 2:
case 3:
case 4:
case 5:
ap_rputs((char *) apr_psprintf(r->pool, "<td><a href=\"http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#%s\">%ixx</a></td>",help[getCounter(codes[i])],vstatus_tracked_status[getCounter(codes[i])]),r);
break;
default:
ap_rputs((char *) apr_psprintf(r->pool, "<td><a href=\"http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#%s\">%i</a></td>",help[getCounter(codes[i])],vstatus_tracked_status[getCounter(codes[i])]),r);
}
}
ap_rputs("</tr>\n<tr>\n",r);
//Summarized Data
ap_rputs((char *) apr_psprintf(r->pool, "<td>%s</td>","Total"),r);
#ifdef DEBUG
ap_rputs((char *) apr_psprintf(r->pool, "<td>%i</td>",rbuffer[*old_bucket].timestamp),r);
#endif
for(j=0;j<num_codes;j++){
if(strcmp(type,"abs")){
ap_rputs((char *) apr_psprintf(r->pool, "<td>%li</td>",(rbuffer[pos].data[0].resultcode[getCounter(codes[j])]
-rbuffer[deltapos].data[0].resultcode[getCounter(codes[j])])
),r);
}else{
ap_rputs((char *) apr_psprintf(r->pool, "<td>%li</td>",rbuffer[*old_bucket].data[0].resultcode[getCounter(codes[j])]),r);
apr_array_header_t* val;
}
}
ap_rputs("</tr>\n",r);
//Individual Data
for(i=1;i<num_vhosts;i++){
ap_rputs("<tr>\n",r);
ap_rputs((char *) apr_psprintf(r->pool, "<td><a href=http://%s>%s</a></td>",rbuffer[*bucket].data[i].hostname,rbuffer[0].data[i].hostname),r);
#ifdef DEBUG
ap_rputs((char *) apr_psprintf(r->pool, "<td>%i</td>",(rbuffer[pos].timestamp-rbuffer[deltapos].timestamp)*gconf->granularity),r);
#endif
for(j=0;j<num_codes;j++){
if(strcmp(type,"abs")){
ap_rputs((char *) apr_psprintf(r->pool, "<td>%li</td>\n",(rbuffer[pos].data[i].resultcode[getCounter(codes[j])]
-rbuffer[deltapos].data[i].resultcode[getCounter(codes[j])])
),r);
}else{
ap_rputs((char *) apr_psprintf(r->pool, "<td>%li</td>\n",rbuffer[*old_bucket].data[i].resultcode[getCounter(codes[j])]),r);
}
}
}
ap_rputs("</tr>\n",r);
ap_rputs("</table>\n",r);
ap_rputs(MOD_COPYRIGHT_STRING,r);
ap_rputs("</body>\n",r);
return OK;
}
int handle_csv(request_rec * r,int rel,int delta,int dump){
apr_array_header_t* val;
int num_codes;
int i,j,iter;
int t,p,pos,deltapos;
int iter_max;
const int *codes;
char *f = r->path_info;
*f++; // remove foremost slash
if(dump==1){
p=*bucket;
iter_max=gconf->histSize;
rel=0;
codes=vstatus_tracked_status;
num_codes=CODES_TRACKED;
}else{
iter_max=1;
val = apr_hash_get (gconf->filter, f, strlen(f));
if(val==NULL){
codes=vstatus_tracked_status;
num_codes=CODES_TRACKED;
}else{
codes=(int*)val->elts;
num_codes=val->nelts;
}
if(rel==1){
p=*bucket-1;
}else{
p=*bucket;
}
}
ap_set_content_type(r, "text/plain");
//Headline
ap_rputs("Time,Host",r);
for(i=0;i<num_codes;i++){
switch (vstatus_tracked_status[getCounter(codes[i])]){
case 0:
ap_rputs(",Total",r);
break;
case 1:
case 2:
case 3:
case 4:
case 5:
ap_rputs((char *) apr_psprintf(r->pool, ",%ixx",vstatus_tracked_status[getCounter(vstatus_tracked_status[i])]),r);
break;
default:
ap_rputs((char *) apr_psprintf(r->pool, ",%i",vstatus_tracked_status[getCounter(vstatus_tracked_status[i])]),r);
}
}
ap_rputs("\n",r);
for(iter=0;iter<iter_max;iter++){
pos=(p-iter+gconf->histSize)%gconf->histSize;
// deltapos=((pos-delta)+gconf->histSize)%gconf->histSize;
deltapos=getDeltaPos(pos,delta);
for(i=0;i<num_vhosts;i++){
t=(iter==0)?apr_time_sec(r->request_time) : rbuffer[pos].timestamp*gconf->granularity;
ap_rputs((char *) apr_psprintf(r->pool, "%i,%s",t,rbuffer[pos].data[i].hostname),r);
for(j=0;j<num_codes;j++){
if(rel==0){
ap_rputs((char *) apr_psprintf(r->pool, ",%li",rbuffer[pos].data[i].resultcode[getCounter(codes[j])]),r);
}else{
ap_rputs((char *) apr_psprintf(r->pool, ",%li",rbuffer[pos].data[i].resultcode[getCounter(codes[j])]
-rbuffer[deltapos].data[i].resultcode[getCounter(codes[j])]),r);
}
}
ap_rputs("\n",r);
}
//ap_rputs("\n",r);
}
return OK;
}
int handle_json(request_rec * r,int rel,int delta,int dump){
apr_array_header_t* val;
int num_codes;
int i,j,iter;
int t,p,pos,deltapos;
int iter_max;
const int *codes;
char *f = r->path_info;
*f++; // remove foremost slash
if(dump==1){
p=*bucket;
iter_max=gconf->histSize;
rel=0;
codes=vstatus_tracked_status;
num_codes=CODES_TRACKED;
}else{
iter_max=1;
val = apr_hash_get (gconf->filter, f, strlen(f));
if(val==NULL){
codes=vstatus_tracked_status;
num_codes=CODES_TRACKED;
}else{
codes=(int*)val->elts;
num_codes=val->nelts;
}
if(rel==1){
p=*bucket-1;
}else{
p=*bucket;
}
}
ap_set_content_type(r, "text/plain");
ap_rputs("{\n",r);
for(iter=0;iter<iter_max;iter++){
pos=(p-iter+gconf->histSize)%gconf->histSize;
// deltapos=((pos-delta)+gconf->histSize)%gconf->histSize;
deltapos=getDeltaPos(pos,delta);
t=rbuffer[pos].timestamp*gconf->granularity;
if(iter!=0){
ap_rputs(",",r);
}
ap_rputs((char *) apr_psprintf(r->pool, "\"%li\":{",t),r); //Zeit
for(i=0;i<num_vhosts;i++){
if(i!=0){
ap_rputs(",",r);
}
ap_rputs((char *) apr_psprintf(r->pool, "\"%s\":{",rbuffer[pos].data[i].hostname),r); //Hostname
for(j=0;j<num_codes;j++){
if(j!=0){
ap_rputs(",",r);
}
if(rel==0){
ap_rputs((char *) apr_psprintf(r->pool, "\"%i\":\"%li\"",codes[j],rbuffer[pos].data[i].resultcode[getCounter(codes[j])]),r);
}else{
ap_rputs((char *) apr_psprintf(r->pool, "\"%i\":\"%li\"",codes[j],(long int)rbuffer[pos].data[i].resultcode[getCounter(codes[j])]-
(long int)rbuffer[deltapos].data[i].resultcode[getCounter(codes[j])]),r);
}
}
ap_rputs("}\n",r);
}
ap_rputs("}\n",r);
}
ap_rputs("}\n",r);
return OK;
}
int handle_google(request_rec * r){
apr_array_header_t* val;
int *codes;
int num_codes;
int i,j;
char *f = r->path_info;
*f++; // remove foremost slash
int delta=apr_hash_get(gconf->delta,f,strlen(f));
if(delta==0){
delta=1;
}
int pos=((*old_bucket-1)+gconf->histSize)%gconf->histSize;
// int deltapos=((*old_bucket-(delta+1))+gconf->histSize)%gconf->histSize;
int deltapos=getDeltaPos(pos,delta);
while(rbuffer[(pos+gconf->histSize-1)%gconf->histSize].timestamp-delta>rbuffer[deltapos].timestamp){
deltapos++;
deltapos%=gconf->histSize;
}
char* type = (char*)apr_hash_get (gconf->type, f, strlen(f));
if(type==NULL){
type="rel";
}
val = apr_hash_get (gconf->filter, f, strlen(f));
char* fmt = apr_hash_get (gconf->format ,f, strlen(f));
if(val==NULL){
codes=vstatus_tracked_status;
num_codes=CODES_TRACKED;
}else{
codes=(int*)val->elts;
num_codes=val->nelts;
}
ap_set_content_type(r, "text/plain");
ap_rputs("{\"cols\":[\n",r);
//Headline
ap_rputs("{\"id\":\"\",\"label\":\"Host\",\"pattern\":\"\",\"type\":\"string\"}\n",r);
for(i=0;i<num_codes;i++){
switch (vstatus_tracked_status[getCounter(codes[i])]){
case 0:
ap_rputs(",{\"id\":\"\",\"label\":\"Total\",\"pattern\":\"\",\"type\":\"number\"}\n",r);
break;
case 1:
case 2:
case 3:
case 4:
case 5:
ap_rputs((char *) apr_psprintf(r->pool, ",{\"id\":\"\",\"label\":\"%ixx\",\"pattern\":\"\",\"type\":\"number\"}\n",vstatus_tracked_status[getCounter(codes[i])]),r);
break;
default:
ap_rputs((char *) apr_psprintf(r->pool, ",{\"id\":\"\",\"label\":\"%i\",\"pattern\":\"\",\"type\":\"number\"}\n",vstatus_tracked_status[getCounter(codes[i])]),r);
}
}
ap_rputs("],\n",r);
ap_rputs("\"rows\":[\n",r);
//Summarized Data
ap_rputs("{\"c\":[{\"v\":\"Total\",\"f\":null}",r);
// ap_rputs("{\"c\":[{\"v\":\"\",\"f\":null}",r);
for(j=0;j<num_codes;j++){
if(strcmp(type,"abs")){
// ap_rputs((char *) apr_psprintf(r->pool, ",{\"v\":%i,\"f\":null}",0),r);
ap_rputs((char *) apr_psprintf(r->pool, ",{\"v\":%li,\"f\":null}",((long int)rbuffer[pos].data[0].resultcode[getCounter(codes[j])]
-(long int)rbuffer[deltapos].data[0].resultcode[getCounter(codes[j])])
),r);
}else{
ap_rputs((char *) apr_psprintf(r->pool, ",{\"v\":%li,\"f\":null}",(long int)rbuffer[*old_bucket].data[0].resultcode[getCounter(codes[j])]),r);
// ap_rputs((char *) apr_psprintf(r->pool, ",{\"v\":%i,\"f\":null}",0),r);
}
}
ap_rputs("]}\n",r);
//Individual Data
for(i=1;i<num_vhosts;i++){
ap_rputs((char *) apr_psprintf(r->pool, ",{\"c\":[{\"v\":\"%s\",\"f\":null}",rbuffer[0].data[i].hostname),r);
for(j=0;j<num_codes;j++){
if(strcmp(type,"abs")){
ap_rputs((char *) apr_psprintf(r->pool, ",{\"v\":%li,\"f\":null}",((long int)rbuffer[pos].data[i].resultcode[getCounter(codes[j])]
-(long int)rbuffer[deltapos].data[i].resultcode[getCounter(codes[j])])
),r);
}else{
ap_rputs((char *) apr_psprintf(r->pool, ",{\"v\":%li,\"f\":null}",(long int)rbuffer[*old_bucket].data[i].resultcode[getCounter(codes[j])]),r);
}
}
ap_rputs("]}\n",r);
}
ap_rputs("]}\n",r);
return OK;
}
static void *init_vstatus_cfg(apr_pool_t* pool, server_rec* s){
vstatus_cfg *cfg = apr_pcalloc(pool, sizeof(vstatus_cfg));
cfg->pool=pool;
cfg->filter=apr_hash_make(pool);
cfg->comment=apr_hash_make(pool);
cfg->format=apr_hash_make(pool);
cfg->type=apr_hash_make(pool);
cfg->delta=apr_hash_make(pool);
cfg->histSize=15; //log 15 entries
cfg->granularity=60; //1 entry per minute
#if _WIN32
cfg->computername=getenv("COMPUTERNAME");
#endif
gconf=cfg;
return (void*)cfg;
}
static const char* setFilter(cmd_parms* cmd, void* cfg, const char *filter, const char* value ){
//static const char* setFilter(cmd_parms* cmd, vstatus_cfg* cfg, const char *filter, const char* value ){
apr_array_header_t* attrs = apr_hash_get(gconf->filter, filter, APR_HASH_KEY_STRING);
int* attr;
if (!attrs) {
attrs = apr_array_make(gconf->pool, 2, sizeof(int)) ;
apr_hash_set(gconf->filter, filter, APR_HASH_KEY_STRING, attrs);
}
attr = apr_array_push(attrs);
*attr = atoi(value);
return NULL;
}
static const char* setDelta(cmd_parms* cmd, void* cfg,const char *filter, const char* type ){
apr_hash_set(gconf->delta, filter, APR_HASH_KEY_STRING, type);
return NULL;
}
static const char* setHistSize(cmd_parms* cmd, void* cfg, const char* val ){
//static const char* setHistSize(cmd_parms* cmd, vstatus_cfg* cfg, const char* val ){
gconf->histSize=atoi(val);
return NULL;
}
static const char* setGranularity(cmd_parms* cmd, void* cfg,const char* val ){
gconf->granularity=atoi(val);
return NULL;
}
static const char* setFormat(cmd_parms* cmd, void* cfg,const char *filter, const char* type ){
apr_hash_set(gconf->format, filter, APR_HASH_KEY_STRING, type);
return NULL;
}
static const char* setType(cmd_parms* cmd, void* cfg,const char *filter, const char* type ){
apr_hash_set(gconf->type, filter, APR_HASH_KEY_STRING, type);
return NULL;
}
static const char* setComment(cmd_parms* cmd, void* cfg,const char *filter, const char* type ){
apr_hash_set(gconf->comment, filter, APR_HASH_KEY_STRING, type);
return NULL;
}
static const char* setHeader(cmd_parms* cmd, void* cfg,const char* val ){
gconf->header_string=val;
return NULL;
}
static const char* setStylesheet(cmd_parms* cmd, void* cfg,const char* val ){
gconf->use_stylesheet=val;
return NULL;
}
static const command_rec cmds[] = {
AP_INIT_ITERATE2("vstatusFilter", setFilter,
NULL, RSRC_CONF | ACCESS_CONF,
"Set Filter"),
AP_INIT_TAKE2("vstatusFormat",setFormat,
NULL, RSRC_CONF | ACCESS_CONF,
"Set Display format"),
AP_INIT_TAKE1("vstatusGranularity", setGranularity,
NULL, RSRC_CONF | ACCESS_CONF,
"Set Filter"),
AP_INIT_TAKE1("vstatusHistSize", setHistSize,
NULL, RSRC_CONF | ACCESS_CONF,
"Set Filter"),
AP_INIT_TAKE2("vstatusDelta", setDelta,
NULL, RSRC_CONF | ACCESS_CONF,
"Set Delta"),
AP_INIT_TAKE2("vstatusType", setType,
NULL, RSRC_CONF | ACCESS_CONF,
"Set Type"),
AP_INIT_TAKE2("vstatusComment", setComment,
NULL, RSRC_CONF | ACCESS_CONF,
"Set Comment"),
AP_INIT_TAKE1("vstatusHeader", setHeader,
NULL, RSRC_CONF | ACCESS_CONF,
"Add stuff (one line) inside <head> of HTML output"),
AP_INIT_TAKE1("vstatusStylesheet", setStylesheet,
NULL, RSRC_CONF | ACCESS_CONF,
"Set path (relative to DocumentRoot) to a customr stylesheet"),
{NULL}
};
static int init(apr_pool_t * p, apr_pool_t * plog, apr_pool_t * ptemp, server_rec * s){
ap_directive_t *dir,*dirc;
int i,j;
apr_status_t status;
apr_size_t shm_size;
apr_size_t retsize;
void *shmstart;
apr_hash_t* hosts=apr_hash_make(p);
apr_hash_index_t *hi;
char* key;
char* val;
vstatus_cfg *cfg = ap_get_module_config(s->module_config, &vstatus_module);
status = apr_atomic_init(p);
if (status != APR_SUCCESS)
return HTTP_INTERNAL_SERVER_ERROR;
for (dir = ap_conftree; dir; dir = dir->next) {
for(dirc=dir->first_child;dirc;dirc=dirc->next){
if (dirc != NULL){
if(strcmp(dirc->directive,"ServerName")==0){
num_vhosts++;
apr_hash_set(hosts,dirc->args,sizeof(dirc->directive),dirc->args);
#ifdef DEBUG
ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, s,
"mod_vstatus : VirtualHost %d ServerName %s",num_vhosts,dirc->args);
#endif
}
}
}
}
num_vhosts=apr_hash_count(hosts);
num_vhosts++; //1 for ServerName
num_vhosts++; //1 for Aggregated Data
shm_size = (sizeof(vstatus_ringbuffer) + num_vhosts*sizeof(vstatus_data))*gconf->histSize+3*sizeof(int);
if (shm) {
status = apr_shm_destroy(shm);
if (status != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : Couldn't destroy old memory block");
return status;
}else {
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "mod_reqstatus : Old Shared memory block, destroyed.");
}
}
/* Create shared memory block */
#ifdef DEBUG
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : Allocating SHM (%i Bytes)",shm_size);
#endif
status = apr_shm_create(&shm, shm_size, NULL, p);
if(status == APR_ENOTIMPL ){
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : Anonymous SHM not supported");
status = apr_shm_create(&shm, shm_size, SHM_FILENAME, p);
}
if (status != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : Error creating shm block");
return status;
}
/* Check size of shared memory block - did we get what we asked for? */
retsize = apr_shm_size_get(shm);
if (retsize != shm_size) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : Error allocating shared memory block\n");
return status;
}
/* Init shm block */
retsize = apr_shm_size_get(shm);
shmstart = apr_shm_baseaddr_get(shm);
if (shmstart == NULL) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : Error creating SHM block.\n");
return status;
}
#ifdef DEBUG
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : shm_size : %u",shm_size);
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : retsize : %u",retsize);
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : shm_start : %u",shmstart);
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : shm_end : %u",shmstart+retsize);
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : sizeof vstatus_ringbuffer: %u",sizeof(vstatus_ringbuffer));
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : sizeof vstatus_data : %u",sizeof(vstatus_data));
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : shm_size : %u",shm_size);
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : num_vhosts : %u",num_vhosts);
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : gconf->histSize : %u",cfg->histSize);
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : SHM Adr %u",shmstart);
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,"mod_reqstatus : Segmenting SHM");
#endif
#ifdef _MSC_VER
// We aren't smart enough to figure out the size of void* like GCC. error C2036