source: trunk/src/sh_html.c@ 458

Last change on this file since 458 was 454, checked in by katerina, 10 years ago

Fix for ticket #355 (use calloc instead of malloc).
File size: 12.8 KB
Line 
1/* SAMHAIN file system integrity testing */
2/* Copyright (C) 1999, 2000 Rainer Wichmann */
3/* */
4/* This program is free software; you can redistribute it */
5/* and/or modify */
6/* it under the terms of the GNU General Public License as */
7/* published by */
8/* the Free Software Foundation; either version 2 of the License, or */
9/* (at your option) any later version. */
10/* */
11/* This program is distributed in the hope that it will be useful, */
12/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
13/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
14/* GNU General Public License for more details. */
15/* */
16/* You should have received a copy of the GNU General Public License */
17/* along with this program; if not, write to the Free Software */
18/* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
19
20#include "config_xor.h"
21
22#include <string.h>
23#include <stdio.h>
24#include <stdlib.h>
25
26#if TIME_WITH_SYS_TIME
27#include <sys/time.h>
28#include <time.h>
29#else
30#if HAVE_SYS_TIME_H
31#include <sys/time.h>
32#else
33#include <time.h>
34#endif
35#endif
36#include <unistd.h>
37
38
39#ifdef SH_WITH_SERVER
40
41
42#include "samhain.h"
43#include "sh_forward.h"
44#include "sh_error.h"
45#include "sh_unix.h"
46#include "sh_utils.h"
47#include "sh_html.h"
48
49#undef FIL__
50#define FIL__ _("sh_html.c")
51
52
53s_stat server_status;
54
55
56
57static
58char * replace_stat (char * line)
59{
60 st_format rep_serv_tab[] = {
61 { 'T', S_FMT_TIME, 0, 0, NULL},
62 { 'S', S_FMT_TIME, 0, 0, NULL},
63 { 'L', S_FMT_TIME, 0, 0, NULL},
64 { 'O', S_FMT_ULONG, 0, 0, NULL},
65 { 'A', S_FMT_ULONG, 0, 0, NULL},
66 { 'M', S_FMT_ULONG, 0, 0, NULL},
67 {'\0', S_FMT_ULONG, 0, 0, NULL},
68 };
69
70 rep_serv_tab[0].data_ulong = (unsigned long) time(NULL);
71 rep_serv_tab[1].data_ulong = server_status.start;
72 rep_serv_tab[2].data_ulong = server_status.last;
73 rep_serv_tab[3].data_ulong = server_status.conn_open;
74 rep_serv_tab[4].data_ulong = server_status.conn_total;
75 rep_serv_tab[5].data_ulong = server_status.conn_max;
76
77 return (sh_util_formatted(line, rep_serv_tab));
78}
79
80
81static
82int sh_html_head(SL_TICKET ticket)
83{
84 long status = SL_ENONE;
85 SL_TICKET fd = (-1);
86 char line[512];
87 char endhead[512];
88 char outline[1024];
89 char ts1[81];
90 char ts2[81];
91 time_t now;
92 struct tm * time_ptr;
93#if defined(HAVE_PTHREAD) && defined (_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_LOCALTIME_R)
94 struct tm time_tm;
95#endif
96
97 char * formatted;
98 char * qstr;
99
100 char * p;
101
102 SL_ENTER(_("sh_html_head"));
103
104 p = sh_util_strconcat(DEFAULT_DATAROOT, _("/head.html"), NULL);
105
106 if (p)
107 {
108 fd = sl_open_read (FIL__, __LINE__, p, SL_YESPRIV);
109 SH_FREE(p);
110 }
111
112 if (!SL_ISERROR(fd))
113 {
114 while (!SL_ISERROR(status) && sh_unix_getline (fd, line, sizeof(line)) > 0)
115 {
116 formatted = replace_stat (line);
117 if (formatted)
118 {
119 status = sl_write_line (ticket, formatted, sl_strlen(formatted));
120 SH_FREE(formatted);
121 }
122 }
123 sl_close(fd);
124 }
125 else
126 {
127 qstr = sh_util_basename(DEFAULT_HTML_FILE);
128 if (qstr != NULL)
129 {
130 sl_snprintf(endhead, 511,
131 _("<meta http-equiv=%crefresh%c content=%c120; URL=./%s%c></HEAD><BODY>"),
132 34, 34, 34, qstr, 34);
133 SH_FREE(qstr);
134 }
135 else
136 {
137 sl_snprintf(endhead, 511, _("</HEAD><BODY>"));
138 }
139
140 status =
141 sl_write_line (ticket,
142 _("<HTML><HEAD><TITLE>Report</TITLE>"),
143 sizeof("<HTML><HEAD><TITLE>Report</TITLE>")-1);
144 if (!SL_ISERROR(status))
145 status =
146 sl_write_line (ticket, endhead, strlen(endhead));
147 if (!SL_ISERROR(status))
148 status =
149 sl_write_line (ticket,
150 _("<H1>Samhain Server Report</H1>"),
151 sizeof("<H1>Samhain Server Report</H1>")-1);
152 if (!SL_ISERROR(status))
153 {
154#if defined(HAVE_PTHREAD) && defined (_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_LOCALTIME_R)
155 time_ptr = localtime_r (&(server_status.start), &time_tm);
156#else
157 time_ptr = localtime (&(server_status.start));
158#endif
159 if (time_ptr != NULL)
160 strftime (ts1, 80, _("%d-%m-%Y %H:%M:%S"), time_ptr);
161 now = time(NULL);
162#if defined(HAVE_PTHREAD) && defined (_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_LOCALTIME_R)
163 time_ptr = localtime_r (&now, &time_tm);
164#else
165 time_ptr = localtime (&now);
166#endif
167 if (time_ptr != NULL)
168 strftime (ts2, 80, _("%d-%m-%Y %H:%M:%S"), time_ptr);
169
170 sl_snprintf(outline, 1023,
171 _("<p>Time:<BR>Now: %s<BR>Start: %s</p>"),
172 ts2, ts1);
173 status =
174 sl_write_line (ticket, outline, sl_strlen(outline));
175 }
176 if (!SL_ISERROR(status))
177 {
178 sl_snprintf(outline, 1023,
179 _("<p>Connections (max. %d simultaneous):"\
180 "<BR>Now: %d<BR>Total: %ld</p>"),
181 server_status.conn_max,
182 server_status.conn_open,
183 server_status.conn_total);
184 status =
185 sl_write_line (ticket, outline, sl_strlen(outline));
186 if (server_status.last > (time_t) 0)
187 {
188#if defined(HAVE_PTHREAD) && defined (_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_LOCALTIME_R)
189 time_ptr = localtime_r (&(server_status.last), &time_tm);
190#else
191 time_ptr = localtime (&(server_status.last));
192#endif
193 if (time_ptr != NULL)
194 strftime (ts1, 80, _("%d-%m-%Y %H:%M:%S"), time_ptr);
195 sl_snprintf(outline, 1023,
196 _("<p>Last connection at %s</p>"),
197 ts1);
198 status =
199 sl_write_line (ticket, outline, sl_strlen(outline));
200 }
201 }
202 if (!SL_ISERROR(status))
203 status =
204 sl_write_line (ticket,
205 _("<center><table cellpadding=5 cellspacing=2 border=2>"),
206 sizeof("<center><table cellpadding=5 cellspacing=2 border=2>")-1);
207 }
208
209 if (SL_ISERROR(status))
210 SL_RETURN((-1), _("sh_html_head"));
211
212 SL_RETURN((0), _("sh_html_head"));
213}
214
215static
216int sh_html_foot(SL_TICKET ticket)
217{
218 long status = SL_ENONE;
219 SL_TICKET fd = (-1);
220 char line[512];
221 char * p;
222
223 SL_ENTER(_("sh_html_foot"));
224
225 p = sh_util_strconcat(DEFAULT_DATAROOT, _("/foot.html"), NULL);
226
227 if (p)
228 {
229 fd = sl_open_read (FIL__, __LINE__, p, SL_YESPRIV);
230 SH_FREE(p);
231 }
232
233 if (!SL_ISERROR(fd))
234 {
235 while (!SL_ISERROR(status) && sh_unix_getline (fd, line, sizeof(line)) > 0)
236 {
237 status = sl_write_line (ticket, line, sl_strlen(line));
238 }
239 sl_close(fd);
240 }
241 else
242 {
243 status = sl_write_line (ticket, _("</table></center></BODY></HTML>"),
244 sizeof("</table></center></BODY></HTML>")-1);
245 }
246 if (SL_ISERROR(status))
247 SL_RETURN((-1), _("sh_html_foot"));
248
249 SL_RETURN((0), _("sh_html_foot"));
250}
251
252
253static
254char * replace_tab (const char * line, char * host, char * status,
255 char * timestamp)
256{
257 st_format rep_serv_tab[] = {
258 { 'H', S_FMT_STRING, 0, 0, NULL},
259 { 'S', S_FMT_STRING, 0, 0, NULL},
260 { 'T', S_FMT_STRING, 0, 0, NULL},
261 {'\0', S_FMT_ULONG, 0, 0, NULL},
262 };
263 char * p;
264
265 SL_ENTER(_("replace_tab"));
266
267 rep_serv_tab[0].data_str = host;
268 rep_serv_tab[1].data_str = status;
269 rep_serv_tab[2].data_str = timestamp;
270
271 p = sh_util_formatted(line, rep_serv_tab);
272 SL_RETURN(p, _("replace_tab"));
273}
274
275static char * entry_orig = NULL;
276static size_t entry_size = 0;
277
278static
279int sh_html_get_entry (void)
280{
281 long retval = SL_ENONE;
282 SL_TICKET fd = (-1);
283 char line[512];
284 size_t line_size;
285 size_t add_size = 0;
286 char * p;
287
288 SL_ENTER(_("sh_html_get_entry"));
289
290 p = sh_util_strconcat(DEFAULT_DATAROOT, _("/entry.html"), NULL);
291
292 entry_size = 0;
293 if (entry_orig != NULL)
294 {
295 free (entry_orig);
296 entry_orig = NULL;
297 entry_size = 0;
298 }
299
300 if (p)
301 {
302 fd = sl_open_read (FIL__, __LINE__, p, SL_YESPRIV);
303 SH_FREE(p);
304 }
305 if (!SL_ISERROR(fd))
306 {
307 while (!SL_ISERROR(retval) && sh_unix_getline (fd, line, sizeof(line)) > 0)
308 {
309 line_size = sl_strlen(line);
310 add_size = 0;
311 if (entry_orig != NULL)
312 {
313 entry_orig = realloc(entry_orig, /* free() ok */
314 entry_size + line_size + 1);
315 if (entry_orig) { add_size = line_size; }
316 }
317 else
318 {
319 entry_orig = calloc(1, line_size + 1); /* free() ok */
320 if (entry_orig) { entry_orig[0] = '\0'; add_size = line_size; }
321 }
322 if (!entry_orig)
323 {
324 entry_size = 0;
325 /* add_size = 0; *//* never read */
326 SL_RETURN( 0, _("sh_html_get_entry"));
327 }
328
329 sl_strlcat(&entry_orig[entry_size], line, line_size + 1);
330 entry_size += add_size;
331 SH_VALIDATE_EQ(entry_orig[entry_size], '\0');
332 }
333 sl_close(fd);
334 }
335 SL_RETURN( entry_size, _("sh_html_get_entry"));
336}
337
338static
339int sh_html_entry (SL_TICKET ticket,
340 char * host, char * status, char * timestamp, int flag)
341{
342 char outline[1024];
343 long retval = SL_ENONE;
344
345 char * formatted;
346
347 SL_ENTER(_("sh_html_entry"));
348
349 if (entry_size > 0 && entry_orig != NULL)
350 {
351 formatted = replace_tab(entry_orig, host, status, timestamp);
352 if (formatted)
353 {
354 retval = sl_write_line (ticket, formatted, sl_strlen(formatted));
355 SH_FREE(formatted);
356 }
357 }
358 else
359 {
360 sl_snprintf(outline, 1023,
361 _("<tr><td>%s</td><td>%s</td><td>%s</td></tr>"),
362 host, status, timestamp);
363 retval = sl_write_line (ticket, outline, sl_strlen(outline));
364 }
365
366 /* write a status line
367 */
368 if ((flag == 1) && (!SL_ISERROR(retval)))
369 {
370 sl_snprintf(outline, 1023,
371 _("<!-- \n[STATUS:] %s %s %s\n -->"),
372 host, status, timestamp);
373 retval = sl_write_line (ticket, outline, sl_strlen(outline));
374 }
375
376 if (SL_ISERROR(retval))
377 SL_RETURN((-1), _("sh_html_entry"));
378
379 SL_RETURN((0), _("sh_html_entry"));
380}
381
382typedef struct _sort_arr {
383 char msg[TIM_MAX];
384 char tim[TIM_MAX];
385} sort_arr;
386
387static sort_arr sort_stat[CLT_MAX];
388
389static
390int comp_arr (const void * ao, const void * bo)
391{
392 const sort_arr * a;
393 const sort_arr * b;
394
395 if (ao == NULL && bo == NULL)
396 return 0;
397 else if (ao == NULL && bo != NULL)
398 return (-1);
399 else if (ao != NULL && bo == NULL)
400 return (1);
401
402 a = (const sort_arr *) ao;
403 b = (const sort_arr *) bo;
404
405 return ((-1) * sl_strcmp(a->tim, b->tim));
406}
407
408static
409int sh_html_print_one (SL_TICKET ticket, client_t * top)
410{
411 int status;
412 int clt_status;
413 int i, n;
414
415 SL_ENTER(_("sh_html_print_one"));
416
417 if (top == NULL)
418 SL_RETURN((0), _("sh_html_print_one"));
419
420 clt_status = top->status_now;
421 status = sh_html_entry (ticket,
422 top->hostname,
423 _(clt_stat[clt_status]),
424 top->timestamp[clt_status],
425 1);
426
427 n = 0;
428
429 if (clt_status != CLT_INACTIVE)
430 {
431 for (i = 1; i < CLT_MAX; ++i)
432 {
433 if (top->status_arr[i] != CLT_INACTIVE)
434 {
435 clt_status = top->status_arr[i];
436 sl_strlcpy(sort_stat[n].msg, _(clt_stat[clt_status]), TIM_MAX);
437 sl_strlcpy(sort_stat[n].tim, top->timestamp[clt_status],TIM_MAX);
438 ++n;
439 }
440 }
441 }
442
443 if (n > 0)
444 {
445 qsort(&(sort_stat[0]), n, sizeof(sort_arr), comp_arr);
446
447 for (i = 1; i < n; ++i)
448 {
449 status = sh_html_entry (ticket,
450 " ",
451 sort_stat[i].msg,
452 sort_stat[i].tim,
453 0);
454 }
455 }
456
457 if (SL_ISERROR(status))
458 SL_RETURN((-1), _("sh_html_print_one"));
459
460 SL_RETURN((0), _("sh_html_print_one"));
461}
462
463#include "zAVLTree.h"
464
465int sh_html_write(void * inptr)
466{
467 long fd;
468 zAVLCursor avlcursor;
469 client_t * item;
470 zAVLTree * top = (zAVLTree *) inptr;
471
472 SL_ENTER(_("sh_html_write"));
473
474 if (0 != (fd = tf_trust_check (DEFAULT_HTML_FILE, SL_YESPRIV)))
475 {
476 sh_error_handle((-1), FIL__, __LINE__, fd, MSG_E_TRUST,
477 (long) sh.effective.uid,
478 DEFAULT_HTML_FILE);
479 SL_RETURN((-1), _("sh_html_write"));
480 }
481
482
483 fd = sl_open_write_trunc (FIL__, __LINE__, DEFAULT_HTML_FILE, SL_YESPRIV);
484
485 if (SL_ISERROR(fd))
486 {
487 sh_error_handle((-1), FIL__, __LINE__, fd, MSG_E_ACCESS,
488 (long) sh.effective.uid,
489 DEFAULT_HTML_FILE);
490 SL_RETURN((-1), _("sh_html_write"));
491 }
492
493 sh_html_get_entry();
494
495 sh_html_head(fd);
496 for (item = (client_t *) zAVLFirst(&avlcursor, top); item;
497 item = (client_t *) zAVLNext(&avlcursor))
498 sh_html_print_one (fd, item);
499 sh_html_foot(fd);
500 sl_close(fd);
501
502 SL_RETURN((0), _("sh_html_write"));
503}
504
505int sh_html_zero()
506{
507 long fd;
508
509 SL_ENTER(_("sh_html_zero"));
510
511 if (0 != (fd = tf_trust_check (DEFAULT_HTML_FILE, SL_YESPRIV)))
512 {
513 SL_RETURN((-1), _("sh_html_zero"));
514 }
515
516 fd = sl_open_write_trunc (FIL__, __LINE__, DEFAULT_HTML_FILE, SL_YESPRIV);
517
518 if (SL_ISERROR(fd))
519 {
520 SL_RETURN((-1), _("sh_html_zero"));
521 }
522
523 sh_html_head(fd);
524 sh_html_foot(fd);
525
526 sl_close(fd);
527
528 SL_RETURN((0), _("sh_html_zero"));
529}
530
531/* SH_WITH_SERVER */
532#endif
533
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