citadel/file_ops.c

   1 /*
   2  * $Id$
   3  *
   4  * Server functions which handle file transfers and room directories.
   5  *
   6  */
   7
   8 #ifdef DLL_EXPORT
   9 #define IN_LIBCIT
  10 #endif
  11
  12 #include "sysdep.h"
  13 #include <stdlib.h>
  14 #include <unistd.h>
  15 #include <stdio.h>
  16 #include <fcntl.h>
  17 #include <sys/stat.h>
  18 #include <errno.h>
  19 #include <ctype.h>
  20 #include <string.h>
  21 #include <sys/stat.h>
  22
  23 #if TIME_WITH_SYS_TIME
  24 # include <sys/time.h>
  25 # include <time.h>
  26 #else
  27 # if HAVE_SYS_TIME_H
  28 #  include <sys/time.h>
  29 # else
  30 #  include <time.h>
  31 # endif
  32 #endif
  33
  34 #include <limits.h>
  35 #include "citadel.h"
  36 #include "server.h"
  37 #include "serv_extensions.h"
  38 #include "config.h"
  39 #include "file_ops.h"
  40 #include "sysdep_decls.h"
  41 #include "user_ops.h"
  42 #include "support.h"
  43 #include "room_ops.h"
  44 #include "msgbase.h"
  45 #include "tools.h"
  46 #include "citserver.h"
  47
  48 #ifndef HAVE_SNPRINTF
  49 #include "snprintf.h"
  50 #endif
  51
  52 /*
  53  * network_talking_to()  --  concurrency checker
  54  */
  55 int network_talking_to(char *nodename, int operation) {
  56
  57         static char *nttlist = NULL;
  58         char *ptr = NULL;
  59         int i;
  60         char buf[SIZ];
  61         int retval = 0;
  62
  63         begin_critical_section(S_NTTLIST);
  64
  65         switch(operation) {
  66
  67                 case NTT_ADD:
  68                         if (nttlist == NULL) nttlist = strdup("");
  69                         if (nttlist == NULL) break;
  70                         nttlist = (char *)realloc(nttlist,
  71                                 (strlen(nttlist) + strlen(nodename) + 3) );
  72                         strcat(nttlist, "|");
  73                         strcat(nttlist, nodename);
  74                         break;
  75
  76                 case NTT_REMOVE:
  77                         if (nttlist == NULL) break;
  78                         if (strlen(nttlist) == 0) break;
  79                         ptr = malloc(strlen(nttlist));
  80                         if (ptr == NULL) break;
  81                         strcpy(ptr, "");
  82                         for (i = 0; i < num_tokens(nttlist, '|'); ++i) {
  83                                 extract_token(buf, nttlist, i, '|', sizeof buf);
  84                                 if ( (strlen(buf) > 0)
  85                                      && (strcasecmp(buf, nodename)) ) {
  86                                                 strcat(ptr, buf);
  87                                                 strcat(ptr, "|");
  88                                 }
  89                         }
  90                         free(nttlist);
  91                         nttlist = ptr;
  92                         break;
  93
  94                 case NTT_CHECK:
  95                         if (nttlist == NULL) break;
  96                         if (strlen(nttlist) == 0) break;
  97                         for (i = 0; i < num_tokens(nttlist, '|'); ++i) {
  98                                 extract_token(buf, nttlist, i, '|', sizeof buf);
  99                                 if (!strcasecmp(buf, nodename)) ++retval;
 100                         }
 101                         break;
 102         }
 103
 104         if (nttlist != NULL) lprintf(CTDL_DEBUG, "nttlist=<%s>\n", nttlist);
 105         end_critical_section(S_NTTLIST);
 106         return(retval);
 107 }
 108
 109
 110
 111
 112 /*
 113  * Server command to delete a file from a room's directory
 114  */
 115 void cmd_delf(char *filename)
 116 {
 117         char pathname[64];
 118         int a;
 119
 120         if (CtdlAccessCheck(ac_room_aide))
 121                 return;
 122
 123         if ((CC->room.QRflags & QR_DIRECTORY) == 0) {
 124                 cprintf("%d No directory in this room.\n",
 125                         ERROR + NOT_HERE);
 126                 return;
 127         }
 128
 129         if (strlen(filename) == 0) {
 130                 cprintf("%d You must specify a file name.\n",
 131                         ERROR + FILE_NOT_FOUND);
 132                 return;
 133         }
 134         for (a = 0; a < strlen(filename); ++a) {
 135                 if (filename[a] == '/') {
 136                         filename[a] = '_';
 137                 }
 138         }
 139         snprintf(pathname, sizeof pathname,
 140 #ifndef HAVE_DATA_DIR
 141                          "." /* FIXME: should here be CTDLDIR ? */
 142 #else
 143                          DATA_DIR
 144 #endif
 145                          "/files/%s/%s",
 146                          CC->room.QRdirname, filename);
 147         a = unlink(pathname);
 148         if (a == 0) {
 149                 cprintf("%d File '%s' deleted.\n", CIT_OK, pathname);
 150         }
 151         else {
 152                 cprintf("%d File '%s' not found.\n",
 153                         ERROR + FILE_NOT_FOUND, pathname);
 154         }
 155 }
 156
 157
 158
 159
 160 /*
 161  * move a file from one room directory to another
 162  */
 163 void cmd_movf(char *cmdbuf)
 164 {
 165         char filename[PATH_MAX];
 166         char pathname[PATH_MAX];
 167         char newpath[PATH_MAX];
 168         char newroom[ROOMNAMELEN];
 169         char buf[PATH_MAX];
 170         int a;
 171         struct ctdlroom qrbuf;
 172
 173         extract_token(filename, cmdbuf, 0, '|', sizeof filename);
 174         extract_token(newroom, cmdbuf, 1, '|', sizeof newroom);
 175
 176         if (CtdlAccessCheck(ac_room_aide)) return;
 177
 178         if ((CC->room.QRflags & QR_DIRECTORY) == 0) {
 179                 cprintf("%d No directory in this room.\n",
 180                         ERROR + NOT_HERE);
 181                 return;
 182         }
 183
 184         if (strlen(filename) == 0) {
 185                 cprintf("%d You must specify a file name.\n",
 186                         ERROR + FILE_NOT_FOUND);
 187                 return;
 188         }
 189
 190         for (a = 0; a < strlen(filename); ++a) {
 191                 if (filename[a] == '/') {
 192                         filename[a] = '_';
 193                 }
 194         }
 195         snprintf(pathname, sizeof pathname, "./files/%s/%s",
 196                  CC->room.QRdirname, filename);
 197         if (access(pathname, 0) != 0) {
 198                 cprintf("%d File '%s' not found.\n",
 199                         ERROR + FILE_NOT_FOUND, pathname);
 200                 return;
 201         }
 202
 203         if (getroom(&qrbuf, newroom) != 0) {
 204                 cprintf("%d '%s' does not exist.\n", ERROR + ROOM_NOT_FOUND, newroom);
 205                 return;
 206         }
 207         if ((qrbuf.QRflags & QR_DIRECTORY) == 0) {
 208                 cprintf("%d '%s' is not a directory room.\n",
 209                         ERROR + NOT_HERE, qrbuf.QRname);
 210                 return;
 211         }
 212         snprintf(newpath, sizeof newpath, "./files/%s/%s", qrbuf.QRdirname,
 213                  filename);
 214         if (link(pathname, newpath) != 0) {
 215                 cprintf("%d Couldn't move file: %s\n", ERROR + INTERNAL_ERROR,
 216                         strerror(errno));
 217                 return;
 218         }
 219         unlink(pathname);
 220
 221         /* this is a crude method of copying the file description */
 222         snprintf(buf, sizeof buf,
 223                  "cat ./files/%s/filedir |grep %s >>./files/%s/filedir",
 224                  CC->room.QRdirname, filename, qrbuf.QRdirname);
 225         system(buf);
 226         cprintf("%d File '%s' has been moved.\n", CIT_OK, filename);
 227 }
 228
 229
 230 /*
 231  * send a file over the net
 232  */
 233 void cmd_netf(char *cmdbuf)
 234 {
 235         char pathname[256], filename[256], destsys[256], buf[256];
 236         char outfile[256];
 237         int a, e;
 238         time_t now;
 239         FILE *ofp;
 240         static int seq = 1;
 241
 242         extract_token(filename, cmdbuf, 0, '|', sizeof filename);
 243         extract_token(destsys, cmdbuf, 1, '|', sizeof destsys);
 244
 245         if (CtdlAccessCheck(ac_room_aide)) return;
 246
 247         if ((CC->room.QRflags & QR_DIRECTORY) == 0) {
 248                 cprintf("%d No directory in this room.\n",
 249                         ERROR + NOT_HERE);
 250                 return;
 251         }
 252
 253         if (strlen(filename) == 0) {
 254                 cprintf("%d You must specify a file name.\n",
 255                         ERROR + FILE_NOT_FOUND);
 256                 return;
 257         }
 258
 259         for (a = 0; a < strlen(filename); ++a) {
 260                 if (filename[a] == '/') {
 261                         filename[a] = '_';
 262                 }
 263         }
 264         snprintf(pathname, sizeof pathname, "./files/%s/%s",
 265                  CC->room.QRdirname, filename);
 266         if (access(pathname, 0) != 0) {
 267                 cprintf("%d File '%s' not found.\n",
 268                         ERROR + FILE_NOT_FOUND, pathname);
 269                 return;
 270         }
 271         snprintf(buf, sizeof buf, "sysop@%s", destsys);
 272         e = alias(buf);
 273         if (e != MES_IGNET) {
 274                 cprintf("%d No such system: '%s'\n",
 275                         ERROR + NO_SUCH_SYSTEM, destsys);
 276                 return;
 277         }
 278         snprintf(outfile, sizeof outfile,
 279 #ifndef HAVE_SPOOL_DIR
 280                          CTDLDIR
 281 #else
 282                          SPOOL_DIR
 283 #endif
 284                          "/network/spoolin/nsf.%04lx.%04x",
 285                          (long)getpid(), ++seq);
 286         ofp = fopen(outfile, "a");
 287         if (ofp == NULL) {
 288                 cprintf("%d internal error\n", ERROR + INTERNAL_ERROR);
 289                 return;
 290         }
 291
 292         putc(255, ofp);
 293         putc(MES_NORMAL, ofp);
 294         putc(0, ofp);
 295         fprintf(ofp, "Pcit%ld", CC->user.usernum);
 296         putc(0, ofp);
 297         time(&now);
 298         fprintf(ofp, "T%ld", (long) now);
 299         putc(0, ofp);
 300         fprintf(ofp, "A%s", CC->user.fullname);
 301         putc(0, ofp);
 302         fprintf(ofp, "O%s", CC->room.QRname);
 303         putc(0, ofp);
 304         fprintf(ofp, "N%s", NODENAME);
 305         putc(0, ofp);
 306         fprintf(ofp, "D%s", destsys);
 307         putc(0, ofp);
 308         fprintf(ofp, "SFILE");
 309         putc(0, ofp);
 310         putc('M', ofp);
 311         fclose(ofp);
 312
 313         snprintf(buf, sizeof buf,
 314                          "cd "
 315 #ifndef HAVE_DATA_DIR
 316                          "." /* FIXME: should here be CTDLDIR ? */
 317 #else
 318                          DATA_DIR
 319 #endif
 320                          /* FIXME: detect uuencode while installation? or inline */
 321                          "/files/%s; uuencode %s <%s 2>/dev/null >>%s",
 322                          CC->room.QRdirname, filename, filename, outfile);
 323         system(buf);
 324
 325         ofp = fopen(outfile, "a");
 326         putc(0, ofp);
 327         fclose(ofp);
 328
 329         cprintf("%d File '%s' has been sent to %s.\n", CIT_OK, filename,
 330                 destsys);
 331         /* FIXME start a network run here. */
 332         return;
 333 }
 334
 335 /*
 336  * This code is common to all commands which open a file for downloading,
 337  * regardless of whether it's a file from the directory, an image, a network
 338  * spool file, a MIME attachment, etc.
 339  * It examines the file and displays the OK result code and some information
 340  * about the file.  NOTE: this stuff is Unix dependent.
 341  */
 342 void OpenCmdResult(char *filename, char *mime_type)
 343 {
 344         struct stat statbuf;
 345         time_t modtime;
 346         long filesize;
 347
 348         fstat(fileno(CC->download_fp), &statbuf);
 349         filesize = (long) statbuf.st_size;
 350         modtime = (time_t) statbuf.st_mtime;
 351
 352         cprintf("%d %ld|%ld|%s|%s\n",
 353                 CIT_OK, filesize, (long)modtime, filename, mime_type);
 354 }
 355
 356
 357 /*
 358  * open a file for downloading
 359  */
 360 void cmd_open(char *cmdbuf)
 361 {
 362         char filename[256];
 363         char pathname[PATH_MAX];
 364         int a;
 365
 366         extract_token(filename, cmdbuf, 0, '|', sizeof filename);
 367
 368         if (CtdlAccessCheck(ac_logged_in)) return;
 369
 370         if ((CC->room.QRflags & QR_DIRECTORY) == 0) {
 371                 cprintf("%d No directory in this room.\n",
 372                         ERROR + NOT_HERE);
 373                 return;
 374         }
 375
 376         if (strlen(filename) == 0) {
 377                 cprintf("%d You must specify a file name.\n",
 378                         ERROR + FILE_NOT_FOUND);
 379                 return;
 380         }
 381
 382         if (CC->download_fp != NULL) {
 383                 cprintf("%d You already have a download file open.\n",
 384                         ERROR + RESOURCE_BUSY);
 385                 return;
 386         }
 387
 388         for (a = 0; a < strlen(filename); ++a) {
 389                 if (filename[a] == '/') {
 390                         filename[a] = '_';
 391                 }
 392         }
 393
 394         snprintf(pathname, sizeof pathname,
 395 #ifndef HAVE_DATA_DIR
 396                          "." /* FIXME: should here be CTDLDIR ? */
 397 #else
 398                          DATA_DIR
 399 #endif
 400                  "/files/%s/%s", CC->room.QRdirname, filename);
 401         CC->download_fp = fopen(pathname, "r");
 402
 403         if (CC->download_fp == NULL) {
 404                 cprintf("%d cannot open %s: %s\n",
 405                         ERROR + INTERNAL_ERROR, pathname, strerror(errno));
 406                 return;
 407         }
 408
 409         OpenCmdResult(filename, "application/octet-stream");
 410 }
 411
 412 /*
 413  * open an image file
 414  */
 415 void cmd_oimg(char *cmdbuf)
 416 {
 417         char filename[256];
 418         char pathname[PATH_MAX];
 419         struct ctdluser usbuf;
 420         char which_user[USERNAME_SIZE];
 421         int which_floor;
 422         int a;
 423
 424         extract_token(filename, cmdbuf, 0, '|', sizeof filename);
 425
 426         if (strlen(filename) == 0) {
 427                 cprintf("%d You must specify a file name.\n",
 428                         ERROR + FILE_NOT_FOUND);
 429                 return;
 430         }
 431
 432         if (CC->download_fp != NULL) {
 433                 cprintf("%d You already have a download file open.\n",
 434                         ERROR + RESOURCE_BUSY);
 435                 return;
 436         }
 437
 438         if (!strcasecmp(filename, "_userpic_")) {
 439                 extract_token(which_user, cmdbuf, 1, '|', sizeof which_user);
 440                 if (getuser(&usbuf, which_user) != 0) {
 441                         cprintf("%d No such user.\n",
 442                                 ERROR + NO_SUCH_USER);
 443                         return;
 444                 }
 445                 snprintf(pathname, sizeof pathname,
 446 #ifndef HAVE_DATA_DIR
 447                                  "." /* FIXME: should here be CTDLDIR ? */
 448 #else
 449                                  DATA_DIR
 450 #endif
 451                                  "/userpics/%ld.gif",
 452                                  usbuf.usernum);
 453         } else if (!strcasecmp(filename, "_floorpic_")) {
 454                 which_floor = extract_int(cmdbuf, 1);
 455                 snprintf(pathname, sizeof pathname,
 456 #ifndef HAVE_DATA_DIR
 457                                  "." /* FIXME: should here be CTDLDIR ? */
 458 #else
 459                                  DATA_DIR
 460 #endif
 461                                  "/images/floor.%d.gif", which_floor);
 462         } else if (!strcasecmp(filename, "_roompic_")) {
 463                 assoc_file_name(pathname, sizeof pathname, &CC->room, "images");
 464         } else {
 465                 for (a = 0; a < strlen(filename); ++a) {
 466                         filename[a] = tolower(filename[a]);
 467                         if (filename[a] == '/') {
 468                                 filename[a] = '_';
 469                         }
 470                 }
 471                 snprintf(pathname, sizeof pathname,
 472 #ifndef HAVE_DATA_DIR
 473                                  "." /* FIXME: should here be CTDLDIR ? */
 474 #else
 475                                  DATA_DIR
 476 #endif
 477                                  "/images/%s.gif",
 478                                  filename);
 479         }
 480
 481         CC->download_fp = fopen(pathname, "rb");
 482         if (CC->download_fp == NULL) {
 483                 cprintf("%d Cannot open %s: %s\n",
 484                         ERROR + FILE_NOT_FOUND, pathname, strerror(errno));
 485                 return;
 486         }
 487
 488         OpenCmdResult(pathname, "image/gif");
 489 }
 490
 491 /*
 492  * open a file for uploading
 493  */
 494 void cmd_uopn(char *cmdbuf)
 495 {
 496         int a;
 497
 498         extract_token(CC->upl_file, cmdbuf, 0, '|', sizeof CC->upl_file);
 499         extract_token(CC->upl_comment, cmdbuf, 1, '|', sizeof CC->upl_comment);
 500
 501         if (CtdlAccessCheck(ac_logged_in)) return;
 502
 503         if ((CC->room.QRflags & QR_DIRECTORY) == 0) {
 504                 cprintf("%d No directory in this room.\n",
 505                         ERROR + NOT_HERE);
 506                 return;
 507         }
 508
 509         if (strlen(CC->upl_file) == 0) {
 510                 cprintf("%d You must specify a file name.\n",
 511                         ERROR + FILE_NOT_FOUND);
 512                 return;
 513         }
 514
 515         if (CC->upload_fp != NULL) {
 516                 cprintf("%d You already have a upload file open.\n",
 517                         ERROR + RESOURCE_BUSY);
 518                 return;
 519         }
 520
 521         for (a = 0; a < strlen(CC->upl_file); ++a) {
 522                 if (CC->upl_file[a] == '/') {
 523                         CC->upl_file[a] = '_';
 524                 }
 525         }
 526         snprintf(CC->upl_path, sizeof CC->upl_path,
 527 #ifndef HAVE_DATA_DIR
 528                          "." /* FIXME: should here be CTDLDIR ? */
 529 #else
 530                          DATA_DIR
 531 #endif
 532                          "/files/%s/%s",
 533                          CC->room.QRdirname, CC->upl_file);
 534         snprintf(CC->upl_filedir, sizeof CC->upl_filedir,
 535 #ifndef HAVE_DATA_DIR
 536                          "." /* FIXME: should here be CTDLDIR ? */
 537 #else
 538                          DATA_DIR
 539 #endif
 540                          "/files/%s/filedir", CC->room.QRdirname);
 541
 542         CC->upload_fp = fopen(CC->upl_path, "r");
 543         if (CC->upload_fp != NULL) {
 544                 fclose(CC->upload_fp);
 545                 CC->upload_fp = NULL;
 546                 cprintf("%d '%s' already exists\n",
 547                         ERROR + ALREADY_EXISTS, CC->upl_path);
 548                 return;
 549         }
 550
 551         CC->upload_fp = fopen(CC->upl_path, "wb");
 552         if (CC->upload_fp == NULL) {
 553                 cprintf("%d Cannot open %s: %s\n",
 554                         ERROR + INTERNAL_ERROR, CC->upl_path, strerror(errno));
 555                 return;
 556         }
 557         cprintf("%d Ok\n", CIT_OK);
 558 }
 559
 560
 561
 562 /*
 563  * open an image file for uploading
 564  */
 565 void cmd_uimg(char *cmdbuf)
 566 {
 567         int is_this_for_real;
 568         char basenm[256];
 569         int which_floor;
 570         int a;
 571
 572         if (num_parms(cmdbuf) < 2) {
 573                 cprintf("%d Usage error.\n", ERROR + ILLEGAL_VALUE);
 574                 return;
 575         }
 576
 577         is_this_for_real = extract_int(cmdbuf, 0);
 578         extract_token(basenm, cmdbuf, 1, '|', sizeof basenm);
 579         if (CC->upload_fp != NULL) {
 580                 cprintf("%d You already have an upload file open.\n",
 581                         ERROR + RESOURCE_BUSY);
 582                 return;
 583         }
 584
 585         strcpy(CC->upl_path, "");
 586
 587         for (a = 0; a < strlen(basenm); ++a) {
 588                 basenm[a] = tolower(basenm[a]);
 589                 if (basenm[a] == '/') {
 590                         basenm[a] = '_';
 591                 }
 592         }
 593
 594         if (CC->user.axlevel >= 6) {
 595                 snprintf(CC->upl_path, sizeof CC->upl_path,
 596 #ifndef HAVE_DATA_DIR
 597                                  "." /* FIXME: should here be CTDLDIR ? */
 598 #else
 599                                  DATA_DIR
 600 #endif
 601                                  "/images/%s",
 602                                  basenm);
 603         }
 604
 605         if (!strcasecmp(basenm, "_userpic_")) {
 606                 snprintf(CC->upl_path, sizeof CC->upl_path,
 607 #ifndef HAVE_DATA_DIR
 608                                  "." /* FIXME: should here be CTDLDIR ? */
 609 #else
 610                                  DATA_DIR
 611 #endif
 612                                  "/userpics/%ld.gif", CC->user.usernum);
 613         }
 614
 615         if ((!strcasecmp(basenm, "_floorpic_"))
 616             && (CC->user.axlevel >= 6)) {
 617                 which_floor = extract_int(cmdbuf, 2);
 618                 snprintf(CC->upl_path, sizeof CC->upl_path,
 619 #ifndef HAVE_DATA_DIR
 620                                  "." /* FIXME: should here be CTDLDIR ? */
 621 #else
 622                                  DATA_DIR
 623 #endif
 624                                  "/images/floor.%d.gif", which_floor);
 625         }
 626
 627         if ((!strcasecmp(basenm, "_roompic_")) && (is_room_aide())) {
 628                 assoc_file_name(CC->upl_path, sizeof CC->upl_path, &CC->room, "images");
 629         }
 630
 631         if (strlen(CC->upl_path) == 0) {
 632                 cprintf("%d Higher access required.\n",
 633                         ERROR + HIGHER_ACCESS_REQUIRED);
 634                 return;
 635         }
 636
 637         if (is_this_for_real == 0) {
 638                 cprintf("%d Ok to send image\n", CIT_OK);
 639                 return;
 640         }
 641
 642         CC->upload_fp = fopen(CC->upl_path, "wb");
 643         if (CC->upload_fp == NULL) {
 644                 cprintf("%d Cannot open %s: %s\n",
 645                         ERROR + INTERNAL_ERROR, CC->upl_path, strerror(errno));
 646                 return;
 647         }
 648         cprintf("%d Ok\n", CIT_OK);
 649         CC->upload_type = UPL_IMAGE;
 650 }
 651
 652
 653 /*
 654  * close the download file
 655  */
 656 void cmd_clos(void)
 657 {
 658         char buf[256];
 659
 660         if (CC->download_fp == NULL) {
 661                 cprintf("%d You don't have a download file open.\n",
 662                         ERROR + RESOURCE_NOT_OPEN);
 663                 return;
 664         }
 665
 666         fclose(CC->download_fp);
 667         CC->download_fp = NULL;
 668
 669         if (CC->dl_is_net == 1) {
 670                 CC->dl_is_net = 0;
 671                 snprintf(buf, sizeof buf,
 672 #ifndef HAVE_SPOOL_DIR
 673                                  CTDLDIR
 674 #else
 675                                  SPOOL_DIR
 676 #endif
 677                                  "/network/spoolout/%s",
 678                                  CC->net_node);
 679                 unlink(buf);
 680         }
 681
 682         cprintf("%d Ok\n", CIT_OK);
 683 }
 684
 685
 686 /*
 687  * abort an upload
 688  */
 689 void abort_upl(struct CitContext *who)
 690 {
 691         if (who->upload_fp != NULL) {
 692                 fclose(who->upload_fp);
 693                 who->upload_fp = NULL;
 694                 unlink(CC->upl_path);
 695         }
 696 }
 697
 698
 699
 700 /*
 701  * close the upload file
 702  */
 703 void cmd_ucls(char *cmd)
 704 {
 705         FILE *fp;
 706         char upload_notice[512];
 707
 708         if (CC->upload_fp == NULL) {
 709                 cprintf("%d You don't have an upload file open.\n", ERROR + RESOURCE_NOT_OPEN);
 710                 return;
 711         }
 712
 713         fclose(CC->upload_fp);
 714         CC->upload_fp = NULL;
 715
 716         if ((!strcasecmp(cmd, "1")) && (CC->upload_type != UPL_FILE)) {
 717                 CC->upload_type = UPL_FILE;
 718                 cprintf("%d Upload completed.\n", CIT_OK);
 719
 720                 /* FIXME ... here we need to trigger a network run */
 721
 722                 return;
 723         }
 724
 725         if (!strcasecmp(cmd, "1")) {
 726                 cprintf("%d File '%s' saved.\n", CIT_OK, CC->upl_path);
 727                 fp = fopen(CC->upl_filedir, "a");
 728                 if (fp == NULL) {
 729                         fp = fopen(CC->upl_filedir, "w");
 730                 }
 731                 if (fp != NULL) {
 732                         fprintf(fp, "%s %s\n", CC->upl_file,
 733                                 CC->upl_comment);
 734                         fclose(fp);
 735                 }
 736
 737                 /* put together an upload notice */
 738                 snprintf(upload_notice, sizeof upload_notice,
 739                         "NEW UPLOAD: '%s'\n %s\n",
 740                         CC->upl_file, CC->upl_comment);
 741                 quickie_message(CC->curr_user, NULL, CC->room.QRname,
 742                                 upload_notice, 0, NULL);
 743         } else {
 744                 abort_upl(CC);
 745                 cprintf("%d File '%s' aborted.\n", CIT_OK, CC->upl_path);
 746         }
 747 }
 748
 749
 750
 751 /*
 752  * read from the download file
 753  */
 754 void cmd_read(char *cmdbuf)
 755 {
 756         long start_pos;
 757         size_t bytes;
 758         size_t actual_bytes;
 759         char *buf = NULL;
 760
 761         start_pos = extract_long(cmdbuf, 0);
 762         bytes = extract_int(cmdbuf, 1);
 763
 764         if (CC->download_fp == NULL) {
 765                 cprintf("%d You don't have a download file open.\n",
 766                         ERROR + RESOURCE_NOT_OPEN);
 767                 return;
 768         }
 769
 770         if (bytes > 100000) bytes = 100000;
 771         buf = malloc(bytes + 1);
 772
 773         fseek(CC->download_fp, start_pos, 0);
 774         actual_bytes = fread(buf, 1, bytes, CC->download_fp);
 775         cprintf("%d %d\n", BINARY_FOLLOWS, (int)actual_bytes);
 776         client_write(buf, actual_bytes);
 777         free(buf);
 778 }
 779
 780
 781
 782 /*
 783  * write to the upload file
 784  */
 785 void cmd_writ(char *cmdbuf)
 786 {
 787         int bytes;
 788         char *buf;
 789
 790         unbuffer_output();
 791
 792         bytes = extract_int(cmdbuf, 0);
 793
 794         if (CC->upload_fp == NULL) {
 795                 cprintf("%d You don't have an upload file open.\n", ERROR + RESOURCE_NOT_OPEN);
 796                 return;
 797         }
 798
 799         if (bytes > 100000) {
 800                 cprintf("%d You may not write more than 100000 bytes.\n",
 801                         ERROR + TOO_BIG);
 802                 return;
 803         }
 804
 805         cprintf("%d %d\n", SEND_BINARY, bytes);
 806         buf = malloc(bytes + 1);
 807         client_read(buf, bytes);
 808         fwrite(buf, bytes, 1, CC->upload_fp);
 809         free(buf);
 810 }
 811
 812
 813
 814
 815 /*
 816  * cmd_ndop() - open a network spool file for downloading
 817  */
 818 void cmd_ndop(char *cmdbuf)
 819 {
 820         char pathname[256];
 821         struct stat statbuf;
 822
 823         if (strlen(CC->net_node) == 0) {
 824                 cprintf("%d Not authenticated as a network node.\n",
 825                         ERROR + NOT_LOGGED_IN);
 826                 return;
 827         }
 828
 829         if (CC->download_fp != NULL) {
 830                 cprintf("%d You already have a download file open.\n",
 831                         ERROR + RESOURCE_BUSY);
 832                 return;
 833         }
 834
 835         snprintf(pathname, sizeof pathname,
 836 #ifndef HAVE_SPOOL_DIR
 837                          CTDLDIR
 838 #else
 839                          SPOOL_DIR
 840 #endif
 841                          "/network/spoolout/%s",
 842                          CC->net_node);
 843
 844         /* first open the file in append mode in order to create a
 845          * zero-length file if it doesn't already exist
 846          */
 847         CC->download_fp = fopen(pathname, "a");
 848         if (CC->download_fp != NULL)
 849                 fclose(CC->download_fp);
 850
 851         /* now open it */
 852         CC->download_fp = fopen(pathname, "r");
 853         if (CC->download_fp == NULL) {
 854                 cprintf("%d cannot open %s: %s\n",
 855                         ERROR + INTERNAL_ERROR, pathname, strerror(errno));
 856                 return;
 857         }
 858
 859
 860         /* set this flag so other routines know that the download file
 861          * currently open is a network spool file
 862          */
 863         CC->dl_is_net = 1;
 864
 865         stat(pathname, &statbuf);
 866         cprintf("%d %ld\n", CIT_OK, (long)statbuf.st_size);
 867 }
 868
 869 /*
 870  * cmd_nuop() - open a network spool file for uploading
 871  */
 872 void cmd_nuop(char *cmdbuf)
 873 {
 874         static int seq = 1;
 875
 876         if (strlen(CC->net_node) == 0) {
 877                 cprintf("%d Not authenticated as a network node.\n",
 878                         ERROR + NOT_LOGGED_IN);
 879                 return;
 880         }
 881
 882         if (CC->upload_fp != NULL) {
 883                 cprintf("%d You already have an upload file open.\n",
 884                         ERROR + RESOURCE_BUSY);
 885                 return;
 886         }
 887
 888         snprintf(CC->upl_path, sizeof CC->upl_path,
 889 #ifndef HAVE_SPOOL_DIR
 890                          CTDLDIR
 891 #else
 892                          SPOOL_DIR
 893 #endif
 894                          "/network/spoolin/%s.%04lx.%04x",
 895                          CC->net_node, (long)getpid(), ++seq);
 896
 897         CC->upload_fp = fopen(CC->upl_path, "r");
 898         if (CC->upload_fp != NULL) {
 899                 fclose(CC->upload_fp);
 900                 CC->upload_fp = NULL;
 901                 cprintf("%d '%s' already exists\n",
 902                         ERROR + ALREADY_EXISTS, CC->upl_path);
 903                 return;
 904         }
 905
 906         CC->upload_fp = fopen(CC->upl_path, "w");
 907         if (CC->upload_fp == NULL) {
 908                 cprintf("%d Cannot open %s: %s\n",
 909                         ERROR + INTERNAL_ERROR, CC->upl_path, strerror(errno));
 910                 return;
 911         }
 912
 913         CC->upload_type = UPL_NET;
 914         cprintf("%d Ok\n", CIT_OK);
 915 }