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 background=\"%simages/background.jpg\">\n\n", cgi_rooturl());
  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 /* write a config file */
 172 static void write_config(FILE *f, BOOL show_defaults)
 173 {
 174         fprintf(f, "# Samba config file created using SWAT\n");
 175         fprintf(f, "# from %s (%s)\n", cgi_remote_host(), cgi_remote_addr());
 176         fprintf(f, "# Date: %s\n\n", timestring());
 177
 178         lp_dump(f, show_defaults);
 179 }
 180
 181
 182 /* save and reoad the smb.conf config file */
 183 static int save_reload(void)
 184 {
 185         FILE *f;
 186
 187         f = fopen(servicesf,"w");
 188         if (!f) {
 189                 printf("failed to open %s for writing\n", servicesf);
 190                 return 0;
 191         }
 192
 193         write_config(f, False);
 194         fclose(f);
 195
 196         lp_killunused(NULL);
 197
 198         if (!lp_load(servicesf,False,False,False)) {
 199                 printf("Can't reload %s\n", servicesf);
 200                 return 0;
 201         }
 202
 203         return 1;
 204 }
 205
 206
 207
 208 /* commit one parameter */
 209 static void commit_parameter(int snum, struct parm_struct *parm, char *v)
 210 {
 211         int i;
 212         char *s;
 213
 214         if (snum < 0 && parm->class == P_LOCAL) {
 215                 /* this handles the case where we are changing a local
 216                    variable globally. We need to change the parameter in
 217                    all shares where it is currently set to the default */
 218                 for (i=0;i<lp_numservices();i++) {
 219                         s = lp_servicename(i);
 220                         if (s && (*s) && lp_is_default(i, parm)) {
 221                                 lp_do_parameter(i, parm->label, v);
 222                         }
 223                 }
 224         }
 225
 226         lp_do_parameter(snum, parm->label, v);
 227 }
 228
 229 /* commit a set of parameters for a service */
 230 static void commit_parameters(int snum)
 231 {
 232         int i = 0;
 233         struct parm_struct *parm;
 234         pstring label;
 235         char *v;
 236
 237         while ((parm = lp_next_parameter(snum, &i, 1))) {
 238                 sprintf(label, "parm_%s", parm->label);
 239                 if ((v = cgi_variable(label))) {
 240                         if (parm->flags & FLAG_HIDE) continue;
 241                         commit_parameter(snum, parm, v);
 242                 }
 243         }
 244 }
 245
 246
 247 /* load the smb.conf file into loadparm. */
 248 static void load_config(void)
 249 {
 250         if (!lp_load(servicesf,False,True,False)) {
 251                 printf("<b>Can't load %s - using defaults</b><p>\n",
 252                        servicesf);
 253         }
 254 }
 255
 256 /* spit out the html for a link with an image */
 257 static void image_link(char *name,char *hlink, char *src, int width, int height)
 258 {
 259         printf("<A HREF=\"%s/%s\"><img width=%d height=%d src=\"%s%s\" alt=\"%s\"></A>\n",
 260                cgi_baseurl(),
 261                hlink, width, height,
 262                cgi_rooturl(),
 263                src, name);
 264 }
 265
 266 /* display the main navigation controls at the top of each page along
 267    with a title */
 268 static void show_main_buttons(void)
 269 {
 270         printf("<H2 align=center>Samba Web Administration Tool</H2>\n");
 271
 272         image_link("Home", "", "images/home.gif", 50, 50);
 273         image_link("Globals", "globals", "images/globals.gif", 50, 50);
 274         image_link("Shares", "shares", "images/shares.gif", 50, 50);
 275         image_link("Printers", "printers", "images/printers.gif", 50, 50);
 276         image_link("Status", "status", "images/status.gif", 50, 50);
 277         image_link("View Config", "viewconfig", "images/viewconfig.gif", 50, 50);
 278
 279         printf("<HR>\n");
 280 }
 281
 282 /* display a welcome page  */
 283 static void welcome_page(void)
 284 {
 285         include_html("help/welcome.html");
 286 }
 287
 288
 289 /* display the current smb.conf  */
 290 static void viewconfig_page(void)
 291 {
 292         int full_view=0;
 293
 294         if (cgi_variable("full_view")) {
 295                 full_view = 1;
 296         }
 297
 298         printf("<H2>Current Config</H2>\n");
 299         printf("<form method=post>\n");
 300
 301         if (full_view) {
 302                 printf("<input type=submit name=\"normal_view\" value=\"Normal View\">\n");
 303         } else {
 304                 printf("<input type=submit name=\"full_view\" value=\"Full View\">\n");
 305         }
 306
 307         printf("<p><pre>");
 308         write_config(stdout, !full_view);
 309         printf("</pre>");
 310         printf("</form>\n");
 311 }
 312
 313
 314 /* display a globals editing page  */
 315 static void globals_page(void)
 316 {
 317         int advanced = 0;
 318
 319         printf("<H2>Global Variables</H2>\n");
 320
 321         if (cgi_variable("Advanced") && !cgi_variable("Basic"))
 322                 advanced = 1;
 323
 324         if (cgi_variable("Commit")) {
 325                 commit_parameters(GLOBALS_SNUM);
 326                 save_reload();
 327         }
 328
 329         printf("<FORM method=post>\n");
 330
 331         printf("<input type=submit name=\"Commit\" value=\"Commit Changes\">\n");
 332         if (advanced == 0) {
 333                 printf("<input type=submit name=\"Advanced\" value=\"Advanced View\">\n");
 334         } else {
 335                 printf("<input type=submit name=\"Basic\" value=\"Basic View\">\n");
 336         }
 337         printf("<p>\n");
 338
 339         printf("<table>\n");
 340         show_parameters(GLOBALS_SNUM, 1, advanced, 0);
 341         printf("</table>\n");
 342
 343         if (advanced) {
 344                 printf("<input type=hidden name=\"Advanced\" value=1>\n");
 345         }
 346
 347         printf("</form>\n");
 348 }
 349
 350 /* display a shares editing page  */
 351 static void shares_page(void)
 352 {
 353         char *share = cgi_variable("share");
 354         char *s;
 355         int snum=-1;
 356         int i;
 357         int advanced = 0;
 358
 359         if (share)
 360                 snum = lp_servicenumber(share);
 361
 362         printf("<H2>Share Parameters</H2>\n");
 363
 364         if (cgi_variable("Advanced") && !cgi_variable("Basic"))
 365                 advanced = 1;
 366
 367         if (cgi_variable("Commit") && snum >= 0) {
 368                 commit_parameters(snum);
 369                 save_reload();
 370         }
 371
 372         if (cgi_variable("Delete") && snum >= 0) {
 373                 lp_remove_service(snum);
 374                 save_reload();
 375                 share = NULL;
 376                 snum = -1;
 377         }
 378
 379         if (cgi_variable("createshare") && (share=cgi_variable("newshare"))) {
 380                 lp_copy_service(GLOBALS_SNUM, share);
 381                 save_reload();
 382                 snum = lp_servicenumber(share);
 383         }
 384
 385         printf("<FORM method=post>\n");
 386
 387         printf("<table>\n");
 388         printf("<tr><td><input type=submit name=selectshare value=\"Choose Share\"></td>\n");
 389         printf("<td><select name=share>\n");
 390         if (snum < 0)
 391                 printf("<option value=\" \"> \n");
 392         for (i=0;i<lp_numservices();i++) {
 393                 s = lp_servicename(i);
 394                 if (s && (*s) && strcmp(s,"IPC$") && !lp_print_ok(i)) {
 395                         printf("<option %s value=\"%s\">%s\n",
 396                                (share && strcmp(share,s)==0)?"SELECTED":"",
 397                                s, s);
 398                 }
 399         }
 400         printf("</select></td></tr><p>");
 401
 402         printf("<tr><td><input type=submit name=createshare value=\"Create Share\"></td>\n");
 403         printf("<td><input type=text size=30 name=newshare></td></tr>\n");
 404         printf("</table>");
 405
 406
 407         if (snum >= 0) {
 408                 printf("<input type=submit name=\"Commit\" value=\"Commit Changes\">\n");
 409                 printf("<input type=submit name=\"Delete\" value=\"Delete Share\">\n");
 410                 if (advanced == 0) {
 411                         printf("<input type=submit name=\"Advanced\" value=\"Advanced View\">\n");
 412                 } else {
 413                         printf("<input type=submit name=\"Basic\" value=\"Basic View\">\n");
 414                 }
 415                 printf("<p>\n");
 416         }
 417
 418         if (snum >= 0) {
 419                 printf("<table>\n");
 420                 show_parameters(snum, 1, advanced, 0);
 421                 printf("</table>\n");
 422         }
 423
 424         if (advanced) {
 425                 printf("<input type=hidden name=\"Advanced\" value=1>\n");
 426         }
 427
 428         printf("</FORM>\n");
 429 }
 430
 431
 432 /* display a printers editing page  */
 433 static void printers_page(void)
 434 {
 435         char *share = cgi_variable("share");
 436         char *s;
 437         int snum=-1;
 438         int i;
 439         int advanced = 0;
 440
 441         if (share)
 442                 snum = lp_servicenumber(share);
 443
 444         printf("<H2>Printer Parameters</H2>\n");
 445
 446         if (cgi_variable("Advanced") && !cgi_variable("Basic"))
 447                 advanced = 1;
 448
 449         if (cgi_variable("Commit") && snum >= 0) {
 450                 commit_parameters(snum);
 451                 save_reload();
 452         }
 453
 454         if (cgi_variable("Delete") && snum >= 0) {
 455                 lp_remove_service(snum);
 456                 save_reload();
 457                 share = NULL;
 458                 snum = -1;
 459         }
 460
 461         if (cgi_variable("createshare") && (share=cgi_variable("newshare"))) {
 462                 lp_copy_service(GLOBALS_SNUM, share);
 463                 snum = lp_servicenumber(share);
 464                 lp_do_parameter(snum, "print ok", "Yes");
 465                 save_reload();
 466                 snum = lp_servicenumber(share);
 467         }
 468
 469         printf("<FORM method=post>\n");
 470
 471         printf("<table>\n");
 472         printf("<tr><td><input type=submit name=selectshare value=\"Choose Printer\"></td>\n");
 473         printf("<td><select name=share>\n");
 474         if (snum < 0 || !lp_print_ok(snum))
 475                 printf("<option value=\" \"> \n");
 476         for (i=0;i<lp_numservices();i++) {
 477                 s = lp_servicename(i);
 478                 if (s && (*s) && strcmp(s,"IPC$") && lp_print_ok(i)) {
 479                         printf("<option %s value=\"%s\">%s\n",
 480                                (share && strcmp(share,s)==0)?"SELECTED":"",
 481                                s, s);
 482                 }
 483         }
 484         printf("</select></td></tr><p>");
 485
 486         printf("<tr><td><input type=submit name=createshare value=\"Create Printer\"></td>\n");
 487         printf("<td><input type=text size=30 name=newshare></td></tr>\n");
 488         printf("</table>");
 489
 490
 491         if (snum >= 0) {
 492                 printf("<input type=submit name=\"Commit\" value=\"Commit Changes\">\n");
 493                 printf("<input type=submit name=\"Delete\" value=\"Delete Printer\">\n");
 494                 if (advanced == 0) {
 495                         printf("<input type=submit name=\"Advanced\" value=\"Advanced View\">\n");
 496                 } else {
 497                         printf("<input type=submit name=\"Basic\" value=\"Basic View\">\n");
 498                 }
 499                 printf("<p>\n");
 500         }
 501
 502         if (snum >= 0) {
 503                 printf("<table>\n");
 504                 show_parameters(snum, 1, advanced, 1);
 505                 printf("</table>\n");
 506         }
 507
 508         if (advanced) {
 509                 printf("<input type=hidden name=\"Advanced\" value=1>\n");
 510         }
 511
 512         printf("</FORM>\n");
 513 }
 514
 515
 516
 517 int main(int argc, char *argv[])
 518 {
 519         extern char *optarg;
 520         extern int optind;
 521         extern FILE *dbf;
 522         int opt;
 523         char *page;
 524         int auth_required = 1;
 525
 526         /* just in case it goes wild ... */
 527         alarm(300);
 528
 529         dbf = fopen("/dev/null", "w");
 530
 531         if (!dbf) dbf = stderr;
 532
 533         while ((opt = getopt(argc, argv,"s:a")) != EOF) {
 534                 switch (opt) {
 535                 case 's':
 536                         pstrcpy(servicesf,optarg);
 537                         break;
 538                 case 'a':
 539                         auth_required = 0;
 540                         break;
 541                 }
 542         }
 543
 544         cgi_setup(SWATDIR, auth_required);
 545
 546         print_header();
 547
 548         charset_initialise();
 549
 550         /* if this binary is setuid then run completely as root */
 551         setuid(0);
 552
 553         load_config();
 554
 555         cgi_load_variables(NULL);
 556
 557         show_main_buttons();
 558
 559         page = cgi_pathinfo();
 560
 561         if (strcmp(page, "globals")==0) {
 562                 globals_page();
 563         } else if (strcmp(page,"shares")==0) {
 564                 shares_page();
 565         } else if (strcmp(page,"printers")==0) {
 566                 printers_page();
 567         } else if (strcmp(page,"status")==0) {
 568                 status_page();
 569         } else if (strcmp(page,"viewconfig")==0) {
 570                 viewconfig_page();
 571         } else {
 572                 welcome_page();
 573         }
 574
 575         print_footer();
 576         return 0;
 577 }
 578
 579