source/web/swat.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 1.9.
   4    Samba Web Administration Tool
   5    Copyright (C) Andrew Tridgell 1997-1998
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #ifdef SYSLOG
  23 #undef SYSLOG
  24 #endif
  25
  26 #include "includes.h"
  27 #include "smb.h"
  28
  29 #define GLOBALS_SNUM -1
  30
  31 static pstring servicesf = CONFIGFILE;
  32
  33
  34 /* we need these because we link to locking*.o */
  35  void become_root(BOOL save_dir) {}
  36  void unbecome_root(BOOL restore_dir) {}
  37 connection_struct Connections[MAX_CONNECTIONS];
  38 files_struct Files[MAX_OPEN_FILES];
  39 struct current_user current_user;
  40
  41
  42 /* start the page with standard stuff */
  43 static void print_header(void)
  44 {
  45         printf("Expires: 0\r\n");
  46         printf("Content-type: text/html\r\n\r\n");
  47         printf("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 3.2//EN\">\n");
  48         printf("<HTML>\n<HEAD>\n<TITLE>Samba Web Administration Tool</TITLE>\n</HEAD>\n<BODY>\n\n");
  49 }
  50
  51
  52 /* finish off the page */
  53 static void print_footer(void)
  54 {
  55         printf("\n</BODY>\n</HTML>\n");
  56 }
  57
  58 /* include a lump of html in a page */
  59 static void include_html(char *fname)
  60 {
  61         FILE *f = fopen(fname,"r");
  62         char buf[1024];
  63         int ret;
  64
  65         if (!f) {
  66                 printf("ERROR: Can't open %s\n", fname);
  67                 return;
  68         }
  69
  70         while (!feof(f)) {
  71                 ret = fread(buf, 1, sizeof(buf), f);
  72                 if (ret <= 0) break;
  73                 fwrite(buf, 1, ret, stdout);
  74         }
  75
  76         fclose(f);
  77 }
  78
  79
  80 /* display one editable parameter in a form */
  81 static void show_parameter(int snum, struct parm_struct *parm)
  82 {
  83         int i;
  84         void *ptr = parm->ptr;
  85
  86         if (parm->class == P_LOCAL && snum >= 0) {
  87                 ptr = lp_local_ptr(snum, ptr);
  88         }
  89
  90         printf("<tr><td><A HREF=\"%shelp/parameters.html#%s\">?</A> %s</td><td>",
  91                cgi_rooturl(), parm->label, parm->label);
  92
  93         switch (parm->type) {
  94         case P_CHAR:
  95                 printf("<input type=text size=2 name=\"parm_%s\" value=\"%c\">",
  96                        parm->label, *(char *)ptr);
  97                 break;
  98
  99         case P_STRING:
 100         case P_USTRING:
 101                 printf("<input type=text size=40 name=\"parm_%s\" value=\"%s\">",
 102                        parm->label, *(char **)ptr);
 103                 break;
 104
 105         case P_GSTRING:
 106         case P_UGSTRING:
 107                 printf("<input type=text size=40 name=\"parm_%s\" value=\"%s\">",
 108                        parm->label, (char *)ptr);
 109                 break;
 110
 111         case P_BOOL:
 112                 printf("<input type=radio name=\"parm_%s\" value=Yes %s>yes&nbsp;&nbsp;", parm->label, (*(BOOL *)ptr)?"CHECKED":"");
 113                 printf("<input type=radio name=\"parm_%s\" value=No %s>no", parm->label, (*(BOOL *)ptr)?"":"CHECKED");
 114                 break;
 115
 116         case P_BOOLREV:
 117                 printf("<input type=radio name=\"parm_%s\" value=Yes %s>yes&nbsp;&nbsp;", parm->label, (*(BOOL *)ptr)?"":"CHECKED");
 118                 printf("<input type=radio name=\"parm_%s\" value=No %s>no", parm->label, (*(BOOL *)ptr)?"CHECKED":"");
 119                 break;
 120
 121         case P_INTEGER:
 122                 printf("<input type=text size=8 name=\"parm_%s\" value=%d>", parm->label, *(int *)ptr);
 123                 break;
 124
 125         case P_OCTAL:
 126                 printf("<input type=text size=8 name=\"parm_%s\" value=0%o>", parm->label, *(int *)ptr);
 127                 break;
 128
 129         case P_ENUM:
 130                 for (i=0;parm->enum_list[i].name;i++)
 131                         printf("<input type=radio name=\"parm_%s\" value=%s %s>%s&nbsp;&nbsp;",
 132                                parm->label, parm->enum_list[i].name,
 133                                (*(int *)ptr)==parm->enum_list[i].value?"CHECKED":"",
 134                                parm->enum_list[i].name);
 135                 break;
 136         case P_SEP:
 137                 break;
 138         }
 139         printf("</td></tr>\n");
 140 }
 141
 142 /* display a set of parameters for a service */
 143 static void show_parameters(int snum, int allparameters, int advanced, int printers)
 144 {
 145         int i = 0;
 146         struct parm_struct *parm;
 147         char *heading = NULL;
 148         char *last_heading = NULL;
 149
 150         while ((parm = lp_next_parameter(snum, &i, allparameters))) {
 151                 if (snum < 0 && parm->class == P_LOCAL && !(parm->flags & FLAG_GLOBAL))
 152                         continue;
 153                 if (parm->class == P_SEPARATOR) {
 154                         heading = parm->label;
 155                         continue;
 156                 }
 157                 if (parm->flags & FLAG_HIDE) continue;
 158                 if (!advanced) {
 159                         if (!printers && !(parm->flags & FLAG_BASIC)) continue;
 160                         if (printers && !(parm->flags & FLAG_PRINT)) continue;
 161                 }
 162                 if (heading && heading != last_heading) {
 163                         printf("<tr><td></td></tr><tr><td><b><u>%s</u></b></td></tr>\n", heading);
 164                         last_heading = heading;
 165                 }
 166                 show_parameter(snum, parm);
 167         }
 168 }
 169
 170
 171 /* save and reoad the smb.conf config file */
 172 static int save_reload(void)
 173 {
 174         FILE *f;
 175
 176         f = fopen(servicesf,"w");
 177         if (!f) {
 178                 printf("failed to open %s for writing\n", servicesf);
 179                 return 0;
 180         }
 181
 182         fprintf(f, "# Samba config file created using SWAT\n");
 183         fprintf(f, "# Date: %s\n\n", timestring());
 184
 185         lp_dump(f);
 186
 187         fclose(f);
 188
 189         lp_killunused(NULL);
 190
 191         if (!lp_load(servicesf,False,False,False)) {
 192                 printf("Can't reload %s\n", servicesf);
 193                 return 0;
 194         }
 195
 196         return 1;
 197 }
 198
 199
 200
 201 /* commit one parameter */
 202 static void commit_parameter(int snum, struct parm_struct *parm, char *v)
 203 {
 204         int i;
 205         char *s;
 206
 207         if (snum < 0 && parm->class == P_LOCAL) {
 208                 /* this handles the case where we are changing a local
 209                    variable globally. We need to change the parameter in
 210                    all shares where it is currently set to the default */
 211                 for (i=0;i<lp_numservices();i++) {
 212                         s = lp_servicename(i);
 213                         if (s && (*s) && lp_is_default(i, parm)) {
 214                                 lp_do_parameter(i, parm->label, v);
 215                         }
 216                 }
 217         }
 218
 219         lp_do_parameter(snum, parm->label, v);
 220 }
 221
 222 /* commit a set of parameters for a service */
 223 static void commit_parameters(int snum)
 224 {
 225         int i = 0;
 226         struct parm_struct *parm;
 227         pstring label;
 228         char *v;
 229
 230         while ((parm = lp_next_parameter(snum, &i, 1))) {
 231                 sprintf(label, "parm_%s", parm->label);
 232                 if ((v = cgi_variable(label))) {
 233                         if (parm->flags & FLAG_HIDE) continue;
 234                         commit_parameter(snum, parm, v);
 235                 }
 236         }
 237 }
 238
 239
 240 /* load the smb.conf file into loadparm. */
 241 static void load_config(void)
 242 {
 243         if (!lp_load(servicesf,False,True,False)) {
 244                 printf("<b>Can't load %s - using defaults</b><p>\n",
 245                        servicesf);
 246         }
 247 }
 248
 249 /* spit out the html for a link with an image */
 250 static void image_link(char *name,char *hlink, char *src, int width, int height)
 251 {
 252         printf("<A HREF=\"%s/%s\"><img width=%d height=%d src=\"%s%s\" alt=\"%s\"></A>\n",
 253                cgi_baseurl(),
 254                hlink, width, height,
 255                cgi_rooturl(),
 256                src, name);
 257 }
 258
 259 /* display the main navigation controls at the top of each page along
 260    with a title */
 261 static void show_main_buttons(void)
 262 {
 263         printf("<H2 align=center>Samba Web Administration Tool</H2>\n");
 264
 265         image_link("Home", "", "images/home.gif", 50, 50);
 266         image_link("Globals", "globals", "images/globals.gif", 50, 50);
 267         image_link("Shares", "shares", "images/shares.gif", 50, 50);
 268         image_link("Printers", "printers", "images/printers.gif", 50, 50);
 269         image_link("Status", "status", "images/status.gif", 50, 50);
 270         image_link("View Config", "viewconfig", "images/viewconfig.gif", 50, 50);
 271
 272         printf("<HR>\n");
 273 }
 274
 275 /* display a welcome page  */
 276 static void welcome_page(void)
 277 {
 278         include_html("help/welcome.html");
 279 }
 280
 281
 282 /* display the current smb.conf  */
 283 static void viewconfig_page(void)
 284 {
 285         printf("<H2>Current Config</H2>\n");
 286         printf("<pre>");
 287         include_html(servicesf);
 288         printf("</pre>");
 289 }
 290
 291
 292 /* display a globals editing page  */
 293 static void globals_page(void)
 294 {
 295         int advanced = 0;
 296
 297         printf("<H2>Global Variables</H2>\n");
 298
 299         if (cgi_variable("Advanced") && !cgi_variable("Basic"))
 300                 advanced = 1;
 301
 302         if (cgi_variable("Commit")) {
 303                 commit_parameters(GLOBALS_SNUM);
 304                 save_reload();
 305         }
 306
 307         printf("<FORM method=post>\n");
 308
 309         printf("<input type=submit name=\"Commit\" value=\"Commit Changes\">\n");
 310         if (advanced == 0) {
 311                 printf("<input type=submit name=\"Advanced\" value=\"Advanced View\">\n");
 312         } else {
 313                 printf("<input type=submit name=\"Basic\" value=\"Basic View\">\n");
 314         }
 315         printf("<p>\n");
 316
 317         printf("<table>\n");
 318         show_parameters(GLOBALS_SNUM, 1, advanced, 0);
 319         printf("</table>\n");
 320
 321         if (advanced) {
 322                 printf("<input type=hidden name=\"Advanced\" value=1>\n");
 323         }
 324
 325         printf("</form>\n");
 326 }
 327
 328 /* display a shares editing page  */
 329 static void shares_page(void)
 330 {
 331         char *share = cgi_variable("share");
 332         char *s;
 333         int snum=-1;
 334         int i;
 335         int advanced = 0;
 336
 337         if (share)
 338                 snum = lp_servicenumber(share);
 339
 340         printf("<H2>Share Parameters</H2>\n");
 341
 342         if (cgi_variable("Advanced") && !cgi_variable("Basic"))
 343                 advanced = 1;
 344
 345         if (cgi_variable("Commit") && snum >= 0) {
 346                 commit_parameters(snum);
 347                 save_reload();
 348         }
 349
 350         if (cgi_variable("Delete") && snum >= 0) {
 351                 lp_remove_service(snum);
 352                 save_reload();
 353                 share = NULL;
 354                 snum = -1;
 355         }
 356
 357         if (cgi_variable("createshare") && (share=cgi_variable("newshare"))) {
 358                 lp_copy_service(GLOBALS_SNUM, share);
 359                 save_reload();
 360                 snum = lp_servicenumber(share);
 361         }
 362
 363         printf("<FORM method=post>\n");
 364
 365         printf("<table>\n");
 366         printf("<tr><td><input type=submit name=selectshare value=\"Choose Share\"></td>\n");
 367         printf("<td><select name=share>\n");
 368         if (snum < 0)
 369                 printf("<option value=\" \"> \n");
 370         for (i=0;i<lp_numservices();i++) {
 371                 s = lp_servicename(i);
 372                 if (s && (*s) && strcmp(s,"IPC$") && !lp_print_ok(i)) {
 373                         printf("<option %s value=\"%s\">%s\n",
 374                                (share && strcmp(share,s)==0)?"SELECTED":"",
 375                                s, s);
 376                 }
 377         }
 378         printf("</select></td></tr><p>");
 379
 380         printf("<tr><td><input type=submit name=createshare value=\"Create Share\"></td>\n");
 381         printf("<td><input type=text size=30 name=newshare></td></tr>\n");
 382         printf("</table>");
 383
 384
 385         if (snum >= 0) {
 386                 printf("<input type=submit name=\"Commit\" value=\"Commit Changes\">\n");
 387                 printf("<input type=submit name=\"Delete\" value=\"Delete Share\">\n");
 388                 if (advanced == 0) {
 389                         printf("<input type=submit name=\"Advanced\" value=\"Advanced View\">\n");
 390                 } else {
 391                         printf("<input type=submit name=\"Basic\" value=\"Basic View\">\n");
 392                 }
 393                 printf("<p>\n");
 394         }
 395
 396         if (snum >= 0) {
 397                 printf("<table>\n");
 398                 show_parameters(snum, 1, advanced, 0);
 399                 printf("</table>\n");
 400         }
 401
 402         if (advanced) {
 403                 printf("<input type=hidden name=\"Advanced\" value=1>\n");
 404         }
 405
 406         printf("</FORM>\n");
 407 }
 408
 409
 410 /* display a printers editing page  */
 411 static void printers_page(void)
 412 {
 413         char *share = cgi_variable("share");
 414         char *s;
 415         int snum=-1;
 416         int i;
 417         int advanced = 0;
 418
 419         if (share)
 420                 snum = lp_servicenumber(share);
 421
 422         printf("<H2>Printer Parameters</H2>\n");
 423
 424         if (cgi_variable("Advanced") && !cgi_variable("Basic"))
 425                 advanced = 1;
 426
 427         if (cgi_variable("Commit") && snum >= 0) {
 428                 commit_parameters(snum);
 429                 save_reload();
 430         }
 431
 432         if (cgi_variable("Delete") && snum >= 0) {
 433                 lp_remove_service(snum);
 434                 save_reload();
 435                 share = NULL;
 436                 snum = -1;
 437         }
 438
 439         if (cgi_variable("createshare") && (share=cgi_variable("newshare"))) {
 440                 lp_copy_service(GLOBALS_SNUM, share);
 441                 snum = lp_servicenumber(share);
 442                 lp_do_parameter(snum, "print ok", "Yes");
 443                 save_reload();
 444                 snum = lp_servicenumber(share);
 445         }
 446
 447         printf("<FORM method=post>\n");
 448
 449         printf("<table>\n");
 450         printf("<tr><td><input type=submit name=selectshare value=\"Choose Printer\"></td>\n");
 451         printf("<td><select name=share>\n");
 452         if (snum < 0 || !lp_print_ok(snum))
 453                 printf("<option value=\" \"> \n");
 454         for (i=0;i<lp_numservices();i++) {
 455                 s = lp_servicename(i);
 456                 if (s && (*s) && strcmp(s,"IPC$") && lp_print_ok(i)) {
 457                         printf("<option %s value=\"%s\">%s\n",
 458                                (share && strcmp(share,s)==0)?"SELECTED":"",
 459                                s, s);
 460                 }
 461         }
 462         printf("</select></td></tr><p>");
 463
 464         printf("<tr><td><input type=submit name=createshare value=\"Create Printer\"></td>\n");
 465         printf("<td><input type=text size=30 name=newshare></td></tr>\n");
 466         printf("</table>");
 467
 468
 469         if (snum >= 0) {
 470                 printf("<input type=submit name=\"Commit\" value=\"Commit Changes\">\n");
 471                 printf("<input type=submit name=\"Delete\" value=\"Delete Printer\">\n");
 472                 if (advanced == 0) {
 473                         printf("<input type=submit name=\"Advanced\" value=\"Advanced View\">\n");
 474                 } else {
 475                         printf("<input type=submit name=\"Basic\" value=\"Basic View\">\n");
 476                 }
 477                 printf("<p>\n");
 478         }
 479
 480         if (snum >= 0) {
 481                 printf("<table>\n");
 482                 show_parameters(snum, 1, advanced, 1);
 483                 printf("</table>\n");
 484         }
 485
 486         if (advanced) {
 487                 printf("<input type=hidden name=\"Advanced\" value=1>\n");
 488         }
 489
 490         printf("</FORM>\n");
 491 }
 492
 493
 494 static void print_share_mode(share_mode_entry *e, char *fname)
 495 {
 496         printf("<tr><td>%d</td>",e->pid);
 497         printf("<td>");
 498         switch ((e->share_mode>>4)&0xF) {
 499         case DENY_NONE: printf("DENY_NONE"); break;
 500         case DENY_ALL:  printf("DENY_ALL   "); break;
 501         case DENY_DOS:  printf("DENY_DOS   "); break;
 502         case DENY_READ: printf("DENY_READ  "); break;
 503         case DENY_WRITE:printf("DENY_WRITE "); break;
 504         }
 505         printf("</td>");
 506
 507         printf("<td>");
 508         switch (e->share_mode&0xF) {
 509         case 0: printf("RDONLY     "); break;
 510         case 1: printf("WRONLY     "); break;
 511         case 2: printf("RDWR       "); break;
 512         }
 513         printf("</td>");
 514
 515         printf("<td>");
 516         if((e->op_type &
 517             (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 518            (EXCLUSIVE_OPLOCK|BATCH_OPLOCK))
 519                 printf("EXCLUSIVE+BATCH ");
 520         else if (e->op_type & EXCLUSIVE_OPLOCK)
 521                 printf("EXCLUSIVE       ");
 522         else if (e->op_type & BATCH_OPLOCK)
 523                 printf("BATCH           ");
 524         else
 525                 printf("NONE            ");
 526         printf("</td>");
 527
 528         printf("<td>%s</td><td>%s</td></tr>\n",
 529                fname,asctime(LocalTime((time_t *)&e->time.tv_sec)));
 530 }
 531
 532
 533 /* show the current server status */
 534 static void status_page(void)
 535 {
 536         struct connect_record crec;
 537         pstring fname;
 538         FILE *f;
 539
 540         if (cgi_variable("smbd_start")) {
 541                 start_smbd();
 542         }
 543
 544         if (cgi_variable("smbd_stop")) {
 545                 stop_smbd();
 546         }
 547
 548         if (cgi_variable("nmbd_start")) {
 549                 start_nmbd();
 550         }
 551
 552         if (cgi_variable("nmbd_stop")) {
 553                 stop_nmbd();
 554         }
 555
 556         printf("<H2>Server Status</H2>\n");
 557
 558         printf("<FORM method=post>\n");
 559
 560         pstrcpy(fname,lp_lockdir());
 561         standard_sub_basic(fname);
 562         trim_string(fname,"","/");
 563         strcat(fname,"/STATUS..LCK");
 564
 565         f = fopen(fname,"r");
 566         if (!f) {
 567                 printf("Couldn't open status file %s\n",fname);
 568                 if (!lp_status(-1))
 569                         printf("You need to have status=yes in your smb config file\n");
 570                 return;
 571         }
 572
 573
 574         printf("<table>\n");
 575
 576         printf("<tr><td>version:</td><td>%s</td></tr>",VERSION);
 577
 578         fflush(stdout);
 579         if (smbd_running()) {
 580                 printf("<tr><td>smbd:</td><td>running</td><td><input type=submit name=\"smbd_stop\" value=\"Stop smbd\"></td></tr>\n");
 581         } else {
 582                 printf("<tr><td>smbd:</td><td>not running</td><td><input type=submit name=\"smbd_start\" value=\"Start smbd\"></td></tr>\n");
 583         }
 584
 585         fflush(stdout);
 586         if (nmbd_running()) {
 587                 printf("<tr><td>nmbd:</td><td>running</td><td><input type=submit name=\"nmbd_stop\" value=\"Stop nmbd\"></td></tr>\n");
 588         } else {
 589                 printf("<tr><td>nmbd:</td><td>not running</td><td><input type=submit name=\"nmbd_start\" value=\"Start nmbd\"></td></tr>\n");
 590         }
 591
 592         printf("</table>\n");
 593         fflush(stdout);
 594
 595
 596         if (geteuid() != 0)
 597                 printf("<b>NOTE: You are not logged in as root and won't be able to start/stop the server</b><p>\n");
 598
 599         printf("<p><h3>Active Connections</h3>\n");
 600         printf("<table border=1>\n");
 601         printf("<tr><th>Share</th><th>User</th><th>Group</th><th>PID</th><th>Client</th><th>Date</th></tr>\n\n");
 602
 603         while (!feof(f)) {
 604                 if (fread(&crec,sizeof(crec),1,f) != 1)
 605                         break;
 606                 if (crec.magic == 0x280267 && process_exists(crec.pid)) {
 607                         printf("<tr><td>%s</td><td>%s</td><td>%s</td><td>%d</td><td>%s (%s)</td><td>%s</td></tr>\n",
 608                                crec.name,uidtoname(crec.uid),
 609                                gidtoname(crec.gid),crec.pid,
 610                                crec.machine,crec.addr,
 611                                asctime(LocalTime(&crec.start)));
 612                 }
 613         }
 614
 615         printf("</table><p>\n");
 616
 617         printf("<h3>Open Files</h3>\n");
 618         printf("<table border=1>\n");
 619         printf("<tr><th>PID</th><th>Sharing</th><th>R/W</th><th>Oplock</th><th>File</th><th>Date</th></tr>\n");
 620
 621         locking_init(1);
 622         share_mode_forall(print_share_mode);
 623         locking_end();
 624         printf("</table>\n");
 625
 626         fclose(f);
 627
 628         printf("</FORM>\n");
 629 }
 630
 631
 632 int main(int argc, char *argv[])
 633 {
 634         extern char *optarg;
 635         extern int optind;
 636         extern FILE *dbf;
 637         int opt;
 638         char *page;
 639         int auth_required = 1;
 640
 641         /* just in case it goes wild ... */
 642         alarm(300);
 643
 644         dbf = fopen("/dev/null", "w");
 645
 646         if (!dbf) dbf = stderr;
 647
 648         while ((opt = getopt(argc, argv,"s:a")) != EOF) {
 649                 switch (opt) {
 650                 case 's':
 651                         pstrcpy(servicesf,optarg);
 652                         break;
 653                 case 'a':
 654                         auth_required = 0;
 655                         break;
 656                 }
 657         }
 658
 659         cgi_setup(SWATDIR, auth_required);
 660
 661         print_header();
 662
 663         charset_initialise();
 664
 665         /* if this binary is setuid then run completely as root */
 666         setuid(0);
 667
 668         load_config();
 669
 670         cgi_load_variables(NULL);
 671
 672         show_main_buttons();
 673
 674         page = cgi_pathinfo();
 675
 676         if (strcmp(page, "globals")==0) {
 677                 globals_page();
 678         } else if (strcmp(page,"shares")==0) {
 679                 shares_page();
 680         } else if (strcmp(page,"printers")==0) {
 681                 printers_page();
 682         } else if (strcmp(page,"status")==0) {
 683                 status_page();
 684         } else if (strcmp(page,"viewconfig")==0) {
 685                 viewconfig_page();
 686         } else {
 687                 welcome_page();
 688         }
 689
 690         print_footer();
 691         return 0;
 692 }
 693
 694