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         if (!cgi_waspost()) {
  46                 printf("Expires: 0\r\n");
  47         }
  48         printf("Content-type: text/html\r\n\r\n");
  49         printf("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 3.2//EN\">\n");
  50         printf("<HTML>\n<HEAD>\n<TITLE>Samba Web Administration Tool</TITLE>\n</HEAD>\n<BODY background=\"%simages/background.jpg\">\n\n", cgi_rooturl());
  51 }
  52
  53
  54 /* finish off the page */
  55 static void print_footer(void)
  56 {
  57         printf("\n</BODY>\n</HTML>\n");
  58 }
  59
  60 /* include a lump of html in a page */
  61 static void include_html(char *fname)
  62 {
  63         FILE *f = fopen(fname,"r");
  64         char buf[1024];
  65         int ret;
  66
  67         if (!f) {
  68                 printf("ERROR: Can't open %s\n", fname);
  69                 return;
  70         }
  71
  72         while (!feof(f)) {
  73                 ret = fread(buf, 1, sizeof(buf), f);
  74                 if (ret <= 0) break;
  75                 fwrite(buf, 1, ret, stdout);
  76         }
  77
  78         fclose(f);
  79 }
  80
  81
  82 /* display one editable parameter in a form */
  83 static void show_parameter(int snum, struct parm_struct *parm)
  84 {
  85         int i;
  86         void *ptr = parm->ptr;
  87
  88         if (parm->class == P_LOCAL && snum >= 0) {
  89                 ptr = lp_local_ptr(snum, ptr);
  90         }
  91
  92         printf("<tr><td><A HREF=\"%shelp/parameters.html#%s\">?</A> %s</td><td>",
  93                cgi_rooturl(), parm->label, parm->label);
  94
  95         switch (parm->type) {
  96         case P_CHAR:
  97                 printf("<input type=text size=2 name=\"parm_%s\" value=\"%c\">",
  98                        parm->label, *(char *)ptr);
  99                 break;
 100
 101         case P_STRING:
 102         case P_USTRING:
 103                 printf("<input type=text size=40 name=\"parm_%s\" value=\"%s\">",
 104                        parm->label, *(char **)ptr);
 105                 break;
 106
 107         case P_GSTRING:
 108         case P_UGSTRING:
 109                 printf("<input type=text size=40 name=\"parm_%s\" value=\"%s\">",
 110                        parm->label, (char *)ptr);
 111                 break;
 112
 113         case P_BOOL:
 114                 printf("<input type=radio name=\"parm_%s\" value=Yes %s>yes&nbsp;&nbsp;", parm->label, (*(BOOL *)ptr)?"CHECKED":"");
 115                 printf("<input type=radio name=\"parm_%s\" value=No %s>no", parm->label, (*(BOOL *)ptr)?"":"CHECKED");
 116                 break;
 117
 118         case P_BOOLREV:
 119                 printf("<input type=radio name=\"parm_%s\" value=Yes %s>yes&nbsp;&nbsp;", parm->label, (*(BOOL *)ptr)?"":"CHECKED");
 120                 printf("<input type=radio name=\"parm_%s\" value=No %s>no", parm->label, (*(BOOL *)ptr)?"CHECKED":"");
 121                 break;
 122
 123         case P_INTEGER:
 124                 printf("<input type=text size=8 name=\"parm_%s\" value=%d>", parm->label, *(int *)ptr);
 125                 break;
 126
 127         case P_OCTAL:
 128                 printf("<input type=text size=8 name=\"parm_%s\" value=0%o>", parm->label, *(int *)ptr);
 129                 break;
 130
 131         case P_ENUM:
 132                 for (i=0;parm->enum_list[i].name;i++)
 133                         printf("<input type=radio name=\"parm_%s\" value=%s %s>%s&nbsp;&nbsp;",
 134                                parm->label, parm->enum_list[i].name,
 135                                (*(int *)ptr)==parm->enum_list[i].value?"CHECKED":"",
 136                                parm->enum_list[i].name);
 137                 break;
 138         case P_SEP:
 139                 break;
 140         }
 141         printf("</td></tr>\n");
 142 }
 143
 144 /* display a set of parameters for a service */
 145 static void show_parameters(int snum, int allparameters, int advanced, int printers)
 146 {
 147         int i = 0;
 148         struct parm_struct *parm;
 149         char *heading = NULL;
 150         char *last_heading = NULL;
 151
 152         while ((parm = lp_next_parameter(snum, &i, allparameters))) {
 153                 if (snum < 0 && parm->class == P_LOCAL && !(parm->flags & FLAG_GLOBAL))
 154                         continue;
 155                 if (parm->class == P_SEPARATOR) {
 156                         heading = parm->label;
 157                         continue;
 158                 }
 159                 if (parm->flags & FLAG_HIDE) continue;
 160                 if (!advanced) {
 161                         if (!printers && !(parm->flags & FLAG_BASIC)) continue;
 162                         if (printers && !(parm->flags & FLAG_PRINT)) continue;
 163                 }
 164                 if (heading && heading != last_heading) {
 165                         printf("<tr><td></td></tr><tr><td><b><u>%s</u></b></td></tr>\n", heading);
 166                         last_heading = heading;
 167                 }
 168                 show_parameter(snum, parm);
 169         }
 170 }
 171
 172
 173 /* write a config file */
 174 static void write_config(FILE *f, BOOL show_defaults)
 175 {
 176         fprintf(f, "# Samba config file created using SWAT\n");
 177         fprintf(f, "# from %s (%s)\n", cgi_remote_host(), cgi_remote_addr());
 178         fprintf(f, "# Date: %s\n\n", timestring());
 179
 180         lp_dump(f, show_defaults);
 181 }
 182
 183
 184 /* save and reoad the smb.conf config file */
 185 static int save_reload(void)
 186 {
 187         FILE *f;
 188
 189         f = fopen(servicesf,"w");
 190         if (!f) {
 191                 printf("failed to open %s for writing\n", servicesf);
 192                 return 0;
 193         }
 194
 195         write_config(f, False);
 196         fclose(f);
 197
 198         lp_killunused(NULL);
 199
 200         if (!lp_load(servicesf,False,False,False)) {
 201                 printf("Can't reload %s\n", servicesf);
 202                 return 0;
 203         }
 204
 205         return 1;
 206 }
 207
 208
 209
 210 /* commit one parameter */
 211 static void commit_parameter(int snum, struct parm_struct *parm, char *v)
 212 {
 213         int i;
 214         char *s;
 215
 216         if (snum < 0 && parm->class == P_LOCAL) {
 217                 /* this handles the case where we are changing a local
 218                    variable globally. We need to change the parameter in
 219                    all shares where it is currently set to the default */
 220                 for (i=0;i<lp_numservices();i++) {
 221                         s = lp_servicename(i);
 222                         if (s && (*s) && lp_is_default(i, parm)) {
 223                                 lp_do_parameter(i, parm->label, v);
 224                         }
 225                 }
 226         }
 227
 228         lp_do_parameter(snum, parm->label, v);
 229 }
 230
 231 /* commit a set of parameters for a service */
 232 static void commit_parameters(int snum)
 233 {
 234         int i = 0;
 235         struct parm_struct *parm;
 236         pstring label;
 237         char *v;
 238
 239         while ((parm = lp_next_parameter(snum, &i, 1))) {
 240                 sprintf(label, "parm_%s", parm->label);
 241                 if ((v = cgi_variable(label))) {
 242                         if (parm->flags & FLAG_HIDE) continue;
 243                         commit_parameter(snum, parm, v);
 244                 }
 245         }
 246 }
 247
 248
 249 /* load the smb.conf file into loadparm. */
 250 static void load_config(void)
 251 {
 252         if (!lp_load(servicesf,False,True,False)) {
 253                 printf("<b>Can't load %s - using defaults</b><p>\n",
 254                        servicesf);
 255         }
 256 }
 257
 258 /* spit out the html for a link with an image */
 259 static void image_link(char *name,char *hlink, char *src, int width, int height)
 260 {
 261         printf("<A HREF=\"%s/%s\"><img width=%d height=%d src=\"%s%s\" alt=\"%s\"></A>\n",
 262                cgi_baseurl(),
 263                hlink, width, height,
 264                cgi_rooturl(),
 265                src, name);
 266 }
 267
 268 /* display the main navigation controls at the top of each page along
 269    with a title */
 270 static void show_main_buttons(void)
 271 {
 272         printf("<H2 align=center>Samba Web Administration Tool</H2>\n");
 273
 274         image_link("Home", "", "images/home.gif", 50, 50);
 275         image_link("Globals", "globals", "images/globals.gif", 50, 50);
 276         image_link("Shares", "shares", "images/shares.gif", 50, 50);
 277         image_link("Printers", "printers", "images/printers.gif", 50, 50);
 278         image_link("Status", "status", "images/status.gif", 50, 50);
 279         image_link("View Config", "viewconfig", "images/viewconfig.gif", 50, 50);
 280
 281         printf("<HR>\n");
 282 }
 283
 284 /* display a welcome page  */
 285 static void welcome_page(void)
 286 {
 287         include_html("help/welcome.html");
 288 }
 289
 290
 291 /* display the current smb.conf  */
 292 static void viewconfig_page(void)
 293 {
 294         int full_view=0;
 295
 296         if (cgi_variable("full_view")) {
 297                 full_view = 1;
 298         }
 299
 300         printf("<H2>Current Config</H2>\n");
 301         printf("<form method=post>\n");
 302
 303         if (full_view) {
 304                 printf("<input type=submit name=\"normal_view\" value=\"Normal View\">\n");
 305         } else {
 306                 printf("<input type=submit name=\"full_view\" value=\"Full View\">\n");
 307         }
 308
 309         printf("<p><pre>");
 310         write_config(stdout, full_view);
 311         printf("</pre>");
 312         printf("</form>\n");
 313 }
 314
 315
 316 /* display a globals editing page  */
 317 static void globals_page(void)
 318 {
 319         int advanced = 0;
 320
 321         printf("<H2>Global Variables</H2>\n");
 322
 323         if (cgi_variable("Advanced") && !cgi_variable("Basic"))
 324                 advanced = 1;
 325
 326         if (cgi_variable("Commit")) {
 327                 commit_parameters(GLOBALS_SNUM);
 328                 save_reload();
 329         }
 330
 331         printf("<FORM method=post>\n");
 332
 333         printf("<input type=submit name=\"Commit\" value=\"Commit Changes\">\n");
 334         if (advanced == 0) {
 335                 printf("<input type=submit name=\"Advanced\" value=\"Advanced View\">\n");
 336         } else {
 337                 printf("<input type=submit name=\"Basic\" value=\"Basic View\">\n");
 338         }
 339         printf("<p>\n");
 340
 341         printf("<table>\n");
 342         show_parameters(GLOBALS_SNUM, 1, advanced, 0);
 343         printf("</table>\n");
 344
 345         if (advanced) {
 346                 printf("<input type=hidden name=\"Advanced\" value=1>\n");
 347         }
 348
 349         printf("</form>\n");
 350 }
 351
 352 /* display a shares editing page  */
 353 static void shares_page(void)
 354 {
 355         char *share = cgi_variable("share");
 356         char *s;
 357         int snum=-1;
 358         int i;
 359         int advanced = 0;
 360
 361         if (share)
 362                 snum = lp_servicenumber(share);
 363
 364         printf("<H2>Share Parameters</H2>\n");
 365
 366         if (cgi_variable("Advanced") && !cgi_variable("Basic"))
 367                 advanced = 1;
 368
 369         if (cgi_variable("Commit") && snum >= 0) {
 370                 commit_parameters(snum);
 371                 save_reload();
 372         }
 373
 374         if (cgi_variable("Delete") && snum >= 0) {
 375                 lp_remove_service(snum);
 376                 save_reload();
 377                 share = NULL;
 378                 snum = -1;
 379         }
 380
 381         if (cgi_variable("createshare") && (share=cgi_variable("newshare"))) {
 382                 lp_copy_service(GLOBALS_SNUM, share);
 383                 save_reload();
 384                 snum = lp_servicenumber(share);
 385         }
 386
 387         printf("<FORM method=post>\n");
 388
 389         printf("<table>\n");
 390         printf("<tr><td><input type=submit name=selectshare value=\"Choose Share\"></td>\n");
 391         printf("<td><select name=share>\n");
 392         if (snum < 0)
 393                 printf("<option value=\" \"> \n");
 394         for (i=0;i<lp_numservices();i++) {
 395                 s = lp_servicename(i);
 396                 if (s && (*s) && strcmp(s,"IPC$") && !lp_print_ok(i)) {
 397                         printf("<option %s value=\"%s\">%s\n",
 398                                (share && strcmp(share,s)==0)?"SELECTED":"",
 399                                s, s);
 400                 }
 401         }
 402         printf("</select></td></tr><p>");
 403
 404         printf("<tr><td><input type=submit name=createshare value=\"Create Share\"></td>\n");
 405         printf("<td><input type=text size=30 name=newshare></td></tr>\n");
 406         printf("</table>");
 407
 408
 409         if (snum >= 0) {
 410                 printf("<input type=submit name=\"Commit\" value=\"Commit Changes\">\n");
 411                 printf("<input type=submit name=\"Delete\" value=\"Delete Share\">\n");
 412                 if (advanced == 0) {
 413                         printf("<input type=submit name=\"Advanced\" value=\"Advanced View\">\n");
 414                 } else {
 415                         printf("<input type=submit name=\"Basic\" value=\"Basic View\">\n");
 416                 }
 417                 printf("<p>\n");
 418         }
 419
 420         if (snum >= 0) {
 421                 printf("<table>\n");
 422                 show_parameters(snum, 1, advanced, 0);
 423                 printf("</table>\n");
 424         }
 425
 426         if (advanced) {
 427                 printf("<input type=hidden name=\"Advanced\" value=1>\n");
 428         }
 429
 430         printf("</FORM>\n");
 431 }
 432
 433
 434 /* display a printers editing page  */
 435 static void printers_page(void)
 436 {
 437         char *share = cgi_variable("share");
 438         char *s;
 439         int snum=-1;
 440         int i;
 441         int advanced = 0;
 442
 443         if (share)
 444                 snum = lp_servicenumber(share);
 445
 446         printf("<H2>Printer Parameters</H2>\n");
 447
 448         if (cgi_variable("Advanced") && !cgi_variable("Basic"))
 449                 advanced = 1;
 450
 451         if (cgi_variable("Commit") && snum >= 0) {
 452                 commit_parameters(snum);
 453                 save_reload();
 454         }
 455
 456         if (cgi_variable("Delete") && snum >= 0) {
 457                 lp_remove_service(snum);
 458                 save_reload();
 459                 share = NULL;
 460                 snum = -1;
 461         }
 462
 463         if (cgi_variable("createshare") && (share=cgi_variable("newshare"))) {
 464                 lp_copy_service(GLOBALS_SNUM, share);
 465                 snum = lp_servicenumber(share);
 466                 lp_do_parameter(snum, "print ok", "Yes");
 467                 save_reload();
 468                 snum = lp_servicenumber(share);
 469         }
 470
 471         printf("<FORM method=post>\n");
 472
 473         printf("<table>\n");
 474         printf("<tr><td><input type=submit name=selectshare value=\"Choose Printer\"></td>\n");
 475         printf("<td><select name=share>\n");
 476         if (snum < 0 || !lp_print_ok(snum))
 477                 printf("<option value=\" \"> \n");
 478         for (i=0;i<lp_numservices();i++) {
 479                 s = lp_servicename(i);
 480                 if (s && (*s) && strcmp(s,"IPC$") && lp_print_ok(i)) {
 481                         printf("<option %s value=\"%s\">%s\n",
 482                                (share && strcmp(share,s)==0)?"SELECTED":"",
 483                                s, s);
 484                 }
 485         }
 486         printf("</select></td></tr><p>");
 487
 488         printf("<tr><td><input type=submit name=createshare value=\"Create Printer\"></td>\n");
 489         printf("<td><input type=text size=30 name=newshare></td></tr>\n");
 490         printf("</table>");
 491
 492
 493         if (snum >= 0) {
 494                 printf("<input type=submit name=\"Commit\" value=\"Commit Changes\">\n");
 495                 printf("<input type=submit name=\"Delete\" value=\"Delete Printer\">\n");
 496                 if (advanced == 0) {
 497                         printf("<input type=submit name=\"Advanced\" value=\"Advanced View\">\n");
 498                 } else {
 499                         printf("<input type=submit name=\"Basic\" value=\"Basic View\">\n");
 500                 }
 501                 printf("<p>\n");
 502         }
 503
 504         if (snum >= 0) {
 505                 printf("<table>\n");
 506                 show_parameters(snum, 1, advanced, 1);
 507                 printf("</table>\n");
 508         }
 509
 510         if (advanced) {
 511                 printf("<input type=hidden name=\"Advanced\" value=1>\n");
 512         }
 513
 514         printf("</FORM>\n");
 515 }
 516
 517
 518
 519 int main(int argc, char *argv[])
 520 {
 521         extern char *optarg;
 522         extern int optind;
 523         extern FILE *dbf;
 524         int opt;
 525         char *page;
 526         int auth_required = 1;
 527
 528         /* just in case it goes wild ... */
 529         alarm(300);
 530
 531         dbf = fopen("/dev/null", "w");
 532
 533         if (!dbf) dbf = stderr;
 534
 535         while ((opt = getopt(argc, argv,"s:a")) != EOF) {
 536                 switch (opt) {
 537                 case 's':
 538                         pstrcpy(servicesf,optarg);
 539                         break;
 540                 case 'a':
 541                         auth_required = 0;
 542                         break;
 543                 }
 544         }
 545
 546         cgi_setup(SWATDIR, auth_required);
 547
 548         print_header();
 549
 550         charset_initialise();
 551
 552         /* if this binary is setuid then run completely as root */
 553         setuid(0);
 554
 555         load_config();
 556
 557         cgi_load_variables(NULL);
 558
 559         show_main_buttons();
 560
 561         page = cgi_pathinfo();
 562
 563         if (strcmp(page, "globals")==0) {
 564                 globals_page();
 565         } else if (strcmp(page,"shares")==0) {
 566                 shares_page();
 567         } else if (strcmp(page,"printers")==0) {
 568                 printers_page();
 569         } else if (strcmp(page,"status")==0) {
 570                 status_page();
 571         } else if (strcmp(page,"viewconfig")==0) {
 572                 viewconfig_page();
 573         } else {
 574                 welcome_page();
 575         }
 576
 577         print_footer();
 578         return 0;
 579 }
 580
 581