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/*----------------------------------------------------------------------------*/
/* Xymon general CSV info viewer. */
/* */
/* This is a CGI script for a generic presentation of information stored in */
/* a comma-separated file (CSV), e.g. via an export from a spreadsheet or DB. */
/* It is also used for the Xymon column-name links, to provide information */
/* about what each column header means and what kind of test is run. */
/* */
/* Copyright (C) 2003-2011 Henrik Storner <henrik@storner.dk> */
/* */
/* This program is released under the GNU General Public License (GPL), */
/* version 2. See the file "COPYING" for details. */
/* */
/*----------------------------------------------------------------------------*/
static char rcsid[] = "$Id$";
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <ctype.h>
#include "libxymon.h"
#define MAXCOLUMNS 80
char *srcdb = "hostinfo.csv";
char *wantedname = "";
int keycolumn = 0;
char delimiter = ';';
cgidata_t *cgidata = NULL;
void errormsg(char *msg)
{
printf("Content-type: %s\n\n", xgetenv("HTMLCONTENTTYPE"));
printf("<html><head><title>Invalid request</title></head>\n");
printf("<body>%s</body></html>\n", msg);
exit(1);
}
void parse_query(void)
{
cgidata_t *cwalk;
cwalk = cgidata;
while (cwalk) {
/*
* cwalk->name points to the name of the setting.
* cwalk->value points to the value (may be an empty string).
*/
if (strcasecmp(cwalk->name, "key") == 0) {
wantedname = strdup(cwalk->value);
}
else if (strcasecmp(cwalk->name, "db") == 0) {
char *val, *p;
/* Don't allow any slashes in the db-name */
val = cwalk->value;
p = strrchr(val, '/');
if (p) val = (p+1);
srcdb = strdup(val);
}
else if (strcasecmp(cwalk->name, "column") == 0) {
keycolumn = atoi(cwalk->value);
}
else if (strcasecmp(cwalk->name, "delimiter") == 0) {
delimiter = *(cwalk->value);
}
cwalk = cwalk->next;
}
}
int main(int argc, char *argv[])
{
FILE *db;
char dbfn[PATH_MAX];
strbuffer_t *inbuf;
char *hffile = "info";
int bgcolor = COL_BLUE;
char *envarea = NULL;
char *headers[MAXCOLUMNS];
char *items[MAXCOLUMNS];
int i, found;
int argi;
for (argi=1; (argi < argc); argi++) {
if (argnmatch(argv[argi], "--env=")) {
char *p = strchr(argv[argi], '=');
loadenv(p+1, envarea);
}
else if (argnmatch(argv[argi], "--area=")) {
char *p = strchr(argv[argi], '=');
envarea = strdup(p+1);
}
else if (strcmp(argv[argi], "--debug") == 0) {
debug = 1;
}
else if (argnmatch(argv[argi], "--hffile=")) {
char *p = strchr(argv[argi], '=');
hffile = strdup(p+1);
}
else if (argnmatch(argv[argi], "--color=")) {
char *p = strchr(argv[argi], '=');
bgcolor = parse_color(p+1);
}
}
redirect_cgilog("csvinfo");
cgidata = cgi_request();
parse_query();
if (strlen(wantedname) == 0) {
errormsg("Invalid request");
return 1;
}
sprintf(dbfn, "%s/etc/%s", xgetenv("XYMONHOME"), srcdb);
db = fopen(dbfn, "r");
if (db == NULL) {
char msg[PATH_MAX];
sprintf(msg, "Cannot open sourcedb %s\n", dbfn);
errormsg(msg);
return 1;
}
/* First, load the headers from line 1 of the sourcedb */
memset(headers, 0, sizeof(headers));
initfgets(db);
inbuf = newstrbuffer(0);
if (unlimfgets(inbuf, db)) {
char *p1, *p2;
for (i=0, p1=STRBUF(inbuf), p2=strchr(STRBUF(inbuf), delimiter); (p1 && p2 && strlen(p1)); i++,p1=p2+1,p2=strchr(p1, delimiter)) {
*p2 = '\0';
headers[i] = strdup(p1);
}
}
/*
* Pre-allocate the buffer space for the items - we weill be stuffing data
* into these while scanning for the right item.
*/
for (i=0; i<MAXCOLUMNS; i++) items[i] = malloc(MAX_LINE_LEN);
found = 0;
while (!found && unlimfgets(inbuf, db)) {
char *p1, *p2;
for (i=0; i<MAXCOLUMNS; i++) *(items[i]) = '\0';
for (i=0, p1=STRBUF(inbuf), p2=strchr(STRBUF(inbuf), delimiter); (p1 && p2 && strlen(p1)); i++,p1=p2+1,p2=strchr(p1, delimiter)) {
*p2 = '\0';
strcpy(items[i], (strlen(p1) ? p1 : "&nbsp;"));
}
found = (strcasecmp(items[keycolumn], wantedname) == 0);
}
fclose(db);
freestrbuffer(inbuf);
if (!found) {
errormsg("No match");
return 1;
}
/*
* Ready ... go build the webpage.
*/
printf("Content-Type: %s\n\n", xgetenv("HTMLCONTENTTYPE"));
/* It's ok with these hardcoded values, as they are not used for this page */
sethostenv(wantedname, "", "", colorname(bgcolor), NULL);
headfoot(stdout, hffile, "", "header", bgcolor);
printf("<table align=center border=1 summary=\"Information table\">\n");
for (i=0; (headers[i]); i++) {
printf("<tr>\n");
printf(" <th align=left>%s</th><td align=left valign=top>%s</td>\n", headers[i], items[i]);
printf("</tr>\n");
}
printf("</table>\n");
headfoot(stdout, hffile, "", "footer", bgcolor);
return 0;
}