source/web/swat.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 1.9.
   4    html smb.conf editing - prototype only
   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 a set of parameters for a service */
 202 static void commit_parameters(int snum)
 203 {
 204         int i = 0;
 205         struct parm_struct *parm;
 206         pstring label;
 207         char *v;
 208
 209         while ((parm = lp_next_parameter(snum, &i, 1))) {
 210                 sprintf(label, "parm_%s", parm->label);
 211                 if ((v = cgi_variable(label))) {
 212                         lp_do_parameter(snum, parm->label, v);
 213                 }
 214         }
 215 }
 216
 217
 218 /* load the smb.conf file into loadparm. */
 219 static void load_config(void)
 220 {
 221         if (!lp_load(servicesf,False,True,False)) {
 222                 printf("<b>Can't load %s - using defaults</b><p>\n",
 223                        servicesf);
 224         }
 225 }
 226
 227 /* spit out the html for a link with an image */
 228 static void image_link(char *name,char *hlink, char *src, int width, int height)
 229 {
 230         printf("<A HREF=\"%s/%s\"><img width=%d height=%d src=\"%s%s\" alt=\"%s\"></A>\n",
 231                cgi_baseurl(),
 232                hlink, width, height,
 233                cgi_rooturl(),
 234                src, name);
 235 }
 236
 237 /* display the main navigation controls at the top of each page along
 238    with a title */
 239 static void show_main_buttons(void)
 240 {
 241         printf("<H2 align=center>Samba Web Administration Tool</H2>\n");
 242
 243         image_link("Home", "", "images/home.gif", 50, 50);
 244         image_link("Globals", "globals", "images/globals.gif", 50, 50);
 245         image_link("Shares", "shares", "images/shares.gif", 50, 50);
 246         image_link("Printers", "printers", "images/printers.gif", 50, 50);
 247         image_link("Status", "status", "images/status.gif", 50, 50);
 248         image_link("View Config", "viewconfig", "images/viewconfig.gif", 50, 50);
 249
 250         printf("<HR>\n");
 251 }
 252
 253 /* display a welcome page  */
 254 static void welcome_page(void)
 255 {
 256         include_html("help/welcome.html");
 257 }
 258
 259
 260 /* display the current smb.conf  */
 261 static void viewconfig_page(void)
 262 {
 263         printf("<H2>Current Config</H2>\n");
 264         printf("<pre>");
 265         include_html(servicesf);
 266         printf("</pre>");
 267 }
 268
 269
 270 /* display a globals editing page  */
 271 static void globals_page(void)
 272 {
 273         int advanced = 0;
 274
 275         printf("<H2>Global Variables</H2>\n");
 276
 277         if (cgi_variable("Advanced") && !cgi_variable("Basic"))
 278                 advanced = 1;
 279
 280         if (cgi_variable("Commit")) {
 281                 commit_parameters(GLOBALS_SNUM);
 282                 save_reload();
 283         }
 284
 285         printf("<FORM method=post>\n");
 286
 287         printf("<input type=submit name=\"Commit\" value=\"Commit Changes\">\n");
 288         if (advanced == 0) {
 289                 printf("<input type=submit name=\"Advanced\" value=\"Advanced View\">\n");
 290         } else {
 291                 printf("<input type=submit name=\"Basic\" value=\"Basic View\">\n");
 292         }
 293         printf("<p>\n");
 294
 295         printf("<table>\n");
 296         show_parameters(GLOBALS_SNUM, 1, advanced, 0);
 297         printf("</table>\n");
 298
 299         if (advanced) {
 300                 printf("<input type=hidden name=\"Advanced\" value=1>\n");
 301         }
 302
 303         printf("</form>\n");
 304 }
 305
 306 /* display a shares editing page  */
 307 static void shares_page(void)
 308 {
 309         char *share = cgi_variable("share");
 310         char *s;
 311         int snum=-1;
 312         int i;
 313         int advanced = 0;
 314
 315         if (share)
 316                 snum = lp_servicenumber(share);
 317
 318         printf("<H2>Share Parameters</H2>\n");
 319
 320         if (cgi_variable("Advanced") && !cgi_variable("Basic"))
 321                 advanced = 1;
 322
 323         if (cgi_variable("Commit") && snum >= 0) {
 324                 commit_parameters(snum);
 325                 save_reload();
 326         }
 327
 328         if (cgi_variable("Delete") && snum >= 0) {
 329                 lp_remove_service(snum);
 330                 save_reload();
 331                 share = NULL;
 332                 snum = -1;
 333         }
 334
 335         if (cgi_variable("createshare") && (share=cgi_variable("newshare"))) {
 336                 lp_copy_service(GLOBALS_SNUM, share);
 337                 save_reload();
 338                 snum = lp_servicenumber(share);
 339         }
 340
 341         printf("<FORM method=post>\n");
 342
 343         printf("<table>\n");
 344         printf("<tr><td><input type=submit name=selectshare value=\"Choose Share\"></td>\n");
 345         printf("<td><select name=share>\n");
 346         if (snum < 0)
 347                 printf("<option value=\" \"> \n");
 348         for (i=0;i<lp_numservices();i++) {
 349                 s = lp_servicename(i);
 350                 if (s && (*s) && strcmp(s,"IPC$") && !lp_print_ok(i)) {
 351                         printf("<option %s value=\"%s\">%s\n",
 352                                (share && strcmp(share,s)==0)?"SELECTED":"",
 353                                s, s);
 354                 }
 355         }
 356         printf("</select></td></tr><p>");
 357
 358         printf("<tr><td><input type=submit name=createshare value=\"Create Share\"></td>\n");
 359         printf("<td><input type=text size=30 name=newshare></td></tr>\n");
 360         printf("</table>");
 361
 362
 363         if (snum >= 0) {
 364                 printf("<input type=submit name=\"Commit\" value=\"Commit Changes\">\n");
 365                 printf("<input type=submit name=\"Delete\" value=\"Delete Share\">\n");
 366                 if (advanced == 0) {
 367                         printf("<input type=submit name=\"Advanced\" value=\"Advanced View\">\n");
 368                 } else {
 369                         printf("<input type=submit name=\"Basic\" value=\"Basic View\">\n");
 370                 }
 371                 printf("<p>\n");
 372         }
 373
 374         if (snum >= 0) {
 375                 printf("<table>\n");
 376                 show_parameters(snum, 1, advanced, 0);
 377                 printf("</table>\n");
 378         }
 379
 380         if (advanced) {
 381                 printf("<input type=hidden name=\"Advanced\" value=1>\n");
 382         }
 383
 384         printf("</FORM>\n");
 385 }
 386
 387
 388 /* display a printers editing page  */
 389 static void printers_page(void)
 390 {
 391         char *share = cgi_variable("share");
 392         char *s;
 393         int snum=-1;
 394         int i;
 395         int advanced = 0;
 396
 397         if (share)
 398                 snum = lp_servicenumber(share);
 399
 400         printf("<H2>Printer Parameters</H2>\n");
 401
 402         if (cgi_variable("Advanced") && !cgi_variable("Basic"))
 403                 advanced = 1;
 404
 405         if (cgi_variable("Commit") && snum >= 0) {
 406                 commit_parameters(snum);
 407                 save_reload();
 408         }
 409
 410         if (cgi_variable("Delete") && snum >= 0) {
 411                 lp_remove_service(snum);
 412                 save_reload();
 413                 share = NULL;
 414                 snum = -1;
 415         }
 416
 417         if (cgi_variable("createshare") && (share=cgi_variable("newshare"))) {
 418                 lp_copy_service(GLOBALS_SNUM, share);
 419                 snum = lp_servicenumber(share);
 420                 lp_do_parameter(snum, "print ok", "Yes");
 421                 save_reload();
 422                 snum = lp_servicenumber(share);
 423         }
 424
 425         printf("<FORM method=post>\n");
 426
 427         printf("<table>\n");
 428         printf("<tr><td><input type=submit name=selectshare value=\"Choose Printer\"></td>\n");
 429         printf("<td><select name=share>\n");
 430         if (snum < 0 || !lp_print_ok(snum))
 431                 printf("<option value=\" \"> \n");
 432         for (i=0;i<lp_numservices();i++) {
 433                 s = lp_servicename(i);
 434                 if (s && (*s) && strcmp(s,"IPC$") && lp_print_ok(i)) {
 435                         printf("<option %s value=\"%s\">%s\n",
 436                                (share && strcmp(share,s)==0)?"SELECTED":"",
 437                                s, s);
 438                 }
 439         }
 440         printf("</select></td></tr><p>");
 441
 442         printf("<tr><td><input type=submit name=createshare value=\"Create Printer\"></td>\n");
 443         printf("<td><input type=text size=30 name=newshare></td></tr>\n");
 444         printf("</table>");
 445
 446
 447         if (snum >= 0) {
 448                 printf("<input type=submit name=\"Commit\" value=\"Commit Changes\">\n");
 449                 printf("<input type=submit name=\"Delete\" value=\"Delete Printer\">\n");
 450                 if (advanced == 0) {
 451                         printf("<input type=submit name=\"Advanced\" value=\"Advanced View\">\n");
 452                 } else {
 453                         printf("<input type=submit name=\"Basic\" value=\"Basic View\">\n");
 454                 }
 455                 printf("<p>\n");
 456         }
 457
 458         if (snum >= 0) {
 459                 printf("<table>\n");
 460                 show_parameters(snum, 1, advanced, 1);
 461                 printf("</table>\n");
 462         }
 463
 464         if (advanced) {
 465                 printf("<input type=hidden name=\"Advanced\" value=1>\n");
 466         }
 467
 468         printf("</FORM>\n");
 469 }
 470
 471
 472 static void print_share_mode(share_mode_entry *e, char *fname)
 473 {
 474         printf("<tr><td>%d</td>",e->pid);
 475         printf("<td>");
 476         switch ((e->share_mode>>4)&0xF) {
 477         case DENY_NONE: printf("DENY_NONE"); break;
 478         case DENY_ALL:  printf("DENY_ALL   "); break;
 479         case DENY_DOS:  printf("DENY_DOS   "); break;
 480         case DENY_READ: printf("DENY_READ  "); break;
 481         case DENY_WRITE:printf("DENY_WRITE "); break;
 482         }
 483         printf("</td>");
 484
 485         printf("<td>");
 486         switch (e->share_mode&0xF) {
 487         case 0: printf("RDONLY     "); break;
 488         case 1: printf("WRONLY     "); break;
 489         case 2: printf("RDWR       "); break;
 490         }
 491         printf("</td>");
 492
 493         printf("<td>");
 494         if((e->op_type &
 495             (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 496            (EXCLUSIVE_OPLOCK|BATCH_OPLOCK))
 497                 printf("EXCLUSIVE+BATCH ");
 498         else if (e->op_type & EXCLUSIVE_OPLOCK)
 499                 printf("EXCLUSIVE       ");
 500         else if (e->op_type & BATCH_OPLOCK)
 501                 printf("BATCH           ");
 502         else
 503                 printf("NONE            ");
 504         printf("</td>");
 505
 506         printf("<td>%s</td><td>%s</td></tr>\n",
 507                fname,asctime(LocalTime((time_t *)&e->time.tv_sec)));
 508 }
 509
 510
 511 /* show the current server status */
 512 static void status_page(void)
 513 {
 514         struct connect_record crec;
 515         pstring fname;
 516         FILE *f;
 517
 518         printf("<H2>Server Status</H2>\n");
 519
 520         pstrcpy(fname,lp_lockdir());
 521         standard_sub_basic(fname);
 522         trim_string(fname,"","/");
 523         strcat(fname,"/STATUS..LCK");
 524
 525         f = fopen(fname,"r");
 526         if (!f) {
 527                 printf("Couldn't open status file %s\n",fname);
 528                 if (!lp_status(-1))
 529                         printf("You need to have status=yes in your smb config file\n");
 530                 return;
 531         }
 532
 533
 534         printf("\nSamba version %s\n<p>",VERSION);
 535
 536         printf("<h3>Active Connections</h3>\n");
 537         printf("<table border=1>\n");
 538         printf("<tr><th>Share</th><th>User</th><th>Group</th><th>PID</th><th>Client</th><th>Date</th></tr>\n\n");
 539
 540         while (!feof(f)) {
 541                 if (fread(&crec,sizeof(crec),1,f) != 1)
 542                         break;
 543                 if (crec.magic == 0x280267 && process_exists(crec.pid)) {
 544                         printf("<tr><td>%s</td><td>%s</td><td>%s</td><td>%d</td><td>%s (%s)</td><td>%s</td></tr>\n",
 545                                crec.name,uidtoname(crec.uid),
 546                                gidtoname(crec.gid),crec.pid,
 547                                crec.machine,crec.addr,
 548                                asctime(LocalTime(&crec.start)));
 549                 }
 550         }
 551
 552         printf("</table><p>\n");
 553
 554         printf("<h3>Open Files</h3>\n");
 555         printf("<table border=1>\n");
 556         printf("<tr><th>PID</th><th>Sharing</th><th>R/W</th><th>Oplock</th><th>File</th><th>Date</th></tr>\n");
 557
 558         locking_init(1);
 559         share_mode_forall(print_share_mode);
 560         locking_end();
 561         printf("</table>\n");
 562
 563         fclose(f);
 564 }
 565
 566
 567 int main(int argc, char *argv[])
 568 {
 569         extern char *optarg;
 570         extern int optind;
 571         extern FILE *dbf;
 572         int opt;
 573         char *page;
 574         int auth_required = 1;
 575
 576         /* just in case it goes wild ... */
 577         alarm(300);
 578
 579         dbf = fopen("/dev/null", "w");
 580
 581         if (!dbf) dbf = stderr;
 582
 583         while ((opt = getopt(argc, argv,"s:a")) != EOF) {
 584                 switch (opt) {
 585                 case 's':
 586                         pstrcpy(servicesf,optarg);
 587                         break;
 588                 case 'a':
 589                         auth_required = 0;
 590                         break;
 591                 }
 592         }
 593
 594         cgi_setup(SWATDIR, auth_required);
 595
 596         print_header();
 597
 598         charset_initialise();
 599
 600         /* if this binary is setuid then run completely as root */
 601         setuid(0);
 602
 603         load_config();
 604
 605         cgi_load_variables(NULL);
 606
 607         show_main_buttons();
 608
 609         page = cgi_pathinfo();
 610
 611         if (strcmp(page, "globals")==0) {
 612                 globals_page();
 613         } else if (strcmp(page,"shares")==0) {
 614                 shares_page();
 615         } else if (strcmp(page,"printers")==0) {
 616                 printers_page();
 617         } else if (strcmp(page,"status")==0) {
 618                 status_page();
 619         } else if (strcmp(page,"viewconfig")==0) {
 620                 viewconfig_page();
 621         } else {
 622                 welcome_page();
 623         }
 624
 625         print_footer();
 626         return 0;
 627 }
 628
 629