2 * Server functions which handle file transfers and room directories.
17 #if TIME_WITH_SYS_TIME
18 # include <sys/time.h>
22 # include <sys/time.h>
29 #include <libcitadel.h>
34 #include "sysdep_decls.h"
38 #include "citserver.h"
45 #include "ctdl_module.h"
51 * Server command to delete a file from a room's directory
53 void cmd_delf(char *filename)
58 if (CtdlAccessCheck(ac_room_aide))
61 if ((CC->room.QRflags & QR_DIRECTORY) == 0) {
62 cprintf("%d No directory in this room.\n",
67 if (IsEmptyStr(filename)) {
68 cprintf("%d You must specify a file name.\n",
69 ERROR + FILE_NOT_FOUND);
72 for (a = 0; !IsEmptyStr(&filename[a]); ++a) {
73 if ( (filename[a] == '/') || (filename[a] == '\\') ) {
77 snprintf(pathname, sizeof pathname,
80 CC->room.QRdirname, filename);
83 cprintf("%d File '%s' deleted.\n", CIT_OK, pathname);
86 cprintf("%d File '%s' not found.\n",
87 ERROR + FILE_NOT_FOUND, pathname);
95 * move a file from one room directory to another
97 void cmd_movf(char *cmdbuf)
99 char filename[PATH_MAX];
100 char pathname[PATH_MAX];
101 char newpath[PATH_MAX];
102 char newroom[ROOMNAMELEN];
105 struct ctdlroom qrbuf;
107 extract_token(filename, cmdbuf, 0, '|', sizeof filename);
108 extract_token(newroom, cmdbuf, 1, '|', sizeof newroom);
110 if (CtdlAccessCheck(ac_room_aide)) return;
112 if ((CC->room.QRflags & QR_DIRECTORY) == 0) {
113 cprintf("%d No directory in this room.\n",
118 if (IsEmptyStr(filename)) {
119 cprintf("%d You must specify a file name.\n",
120 ERROR + FILE_NOT_FOUND);
124 for (a = 0; !IsEmptyStr(&filename[a]); ++a) {
125 if ( (filename[a] == '/') || (filename[a] == '\\') ) {
129 snprintf(pathname, sizeof pathname, "./files/%s/%s",
130 CC->room.QRdirname, filename);
131 if (access(pathname, 0) != 0) {
132 cprintf("%d File '%s' not found.\n",
133 ERROR + FILE_NOT_FOUND, pathname);
137 if (CtdlGetRoom(&qrbuf, newroom) != 0) {
138 cprintf("%d '%s' does not exist.\n", ERROR + ROOM_NOT_FOUND, newroom);
141 if ((qrbuf.QRflags & QR_DIRECTORY) == 0) {
142 cprintf("%d '%s' is not a directory room.\n",
143 ERROR + NOT_HERE, qrbuf.QRname);
146 snprintf(newpath, sizeof newpath, "./files/%s/%s", qrbuf.QRdirname,
148 if (link(pathname, newpath) != 0) {
149 cprintf("%d Couldn't move file: %s\n", ERROR + INTERNAL_ERROR,
155 /* this is a crude method of copying the file description */
156 snprintf(buf, sizeof buf,
157 "cat ./files/%s/filedir |grep \"%s\" >>./files/%s/filedir",
158 CC->room.QRdirname, filename, qrbuf.QRdirname);
160 cprintf("%d File '%s' has been moved.\n", CIT_OK, filename);
165 * This code is common to all commands which open a file for downloading,
166 * regardless of whether it's a file from the directory, an image, a network
167 * spool file, a MIME attachment, etc.
168 * It examines the file and displays the OK result code and some information
169 * about the file. NOTE: this stuff is Unix dependent.
171 void OpenCmdResult(char *filename, const char *mime_type)
177 fstat(fileno(CC->download_fp), &statbuf);
178 CC->download_fp_total = statbuf.st_size;
179 filesize = (long) statbuf.st_size;
180 modtime = (time_t) statbuf.st_mtime;
182 cprintf("%d %ld|%ld|%s|%s\n",
183 CIT_OK, filesize, (long)modtime, filename, mime_type);
188 * open a file for downloading
190 void cmd_open(char *cmdbuf)
193 char pathname[PATH_MAX];
196 extract_token(filename, cmdbuf, 0, '|', sizeof filename);
198 if (CtdlAccessCheck(ac_logged_in)) return;
200 if ((CC->room.QRflags & QR_DIRECTORY) == 0) {
201 cprintf("%d No directory in this room.\n",
206 if (IsEmptyStr(filename)) {
207 cprintf("%d You must specify a file name.\n",
208 ERROR + FILE_NOT_FOUND);
212 if (CC->download_fp != NULL) {
213 cprintf("%d You already have a download file open.\n",
214 ERROR + RESOURCE_BUSY);
218 for (a = 0; !IsEmptyStr(&filename[a]); ++a) {
219 if ( (filename[a] == '/') || (filename[a] == '\\') ) {
224 snprintf(pathname, sizeof pathname,
227 CC->room.QRdirname, filename);
228 CC->download_fp = fopen(pathname, "r");
230 if (CC->download_fp == NULL) {
231 cprintf("%d cannot open %s: %s\n",
232 ERROR + INTERNAL_ERROR, pathname, strerror(errno));
236 OpenCmdResult(filename, "application/octet-stream");
242 void cmd_oimg(char *cmdbuf)
245 char pathname[PATH_MAX];
246 char MimeTestBuf[32];
247 struct ctdluser usbuf;
248 char which_user[USERNAME_SIZE];
253 extract_token(filename, cmdbuf, 0, '|', sizeof filename);
255 if (IsEmptyStr(filename)) {
256 cprintf("%d You must specify a file name.\n",
257 ERROR + FILE_NOT_FOUND);
261 if (CC->download_fp != NULL) {
262 cprintf("%d You already have a download file open.\n",
263 ERROR + RESOURCE_BUSY);
267 if (!strcasecmp(filename, "_userpic_")) {
268 extract_token(which_user, cmdbuf, 1, '|', sizeof which_user);
269 if (CtdlGetUser(&usbuf, which_user) != 0) {
270 cprintf("%d No such user.\n",
271 ERROR + NO_SUCH_USER);
274 snprintf(pathname, sizeof pathname,
278 } else if (!strcasecmp(filename, "_floorpic_")) {
279 which_floor = extract_int(cmdbuf, 1);
280 snprintf(pathname, sizeof pathname,
282 ctdl_image_dir, which_floor);
283 } else if (!strcasecmp(filename, "_roompic_")) {
284 assoc_file_name(pathname, sizeof pathname, &CC->room, ctdl_image_dir);
286 for (a = 0; !IsEmptyStr(&filename[a]); ++a) {
287 filename[a] = tolower(filename[a]);
288 if ( (filename[a] == '/') || (filename[a] == '\\') ) {
292 snprintf(pathname, sizeof pathname,
298 CC->download_fp = fopen(pathname, "rb");
299 if (CC->download_fp == NULL) {
300 strcat(pathname, ".gif");
301 CC->download_fp = fopen(pathname, "rb");
303 if (CC->download_fp == NULL) {
304 cprintf("%d Cannot open %s: %s\n",
305 ERROR + FILE_NOT_FOUND, pathname, strerror(errno));
308 rv = fread(&MimeTestBuf[0], 1, 32, CC->download_fp);
310 cprintf("%d Cannot access %s: %s\n",
311 ERROR + FILE_NOT_FOUND, pathname, strerror(errno));
315 rewind (CC->download_fp);
316 OpenCmdResult(pathname, GuessMimeType(&MimeTestBuf[0], 32));
320 * open a file for uploading
322 void cmd_uopn(char *cmdbuf)
326 extract_token(CC->upl_file, cmdbuf, 0, '|', sizeof CC->upl_file);
327 extract_token(CC->upl_mimetype, cmdbuf, 1, '|', sizeof CC->upl_mimetype);
328 extract_token(CC->upl_comment, cmdbuf, 2, '|', sizeof CC->upl_comment);
330 if (CtdlAccessCheck(ac_logged_in)) return;
332 if ((CC->room.QRflags & QR_DIRECTORY) == 0) {
333 cprintf("%d No directory in this room.\n",
338 if (IsEmptyStr(CC->upl_file)) {
339 cprintf("%d You must specify a file name.\n",
340 ERROR + FILE_NOT_FOUND);
344 if (CC->upload_fp != NULL) {
345 cprintf("%d You already have a upload file open.\n",
346 ERROR + RESOURCE_BUSY);
350 for (a = 0; !IsEmptyStr(&CC->upl_file[a]); ++a) {
351 if ( (CC->upl_file[a] == '/') || (CC->upl_file[a] == '\\') ) {
352 CC->upl_file[a] = '_';
355 snprintf(CC->upl_path, sizeof CC->upl_path,
358 CC->room.QRdirname, CC->upl_file);
359 snprintf(CC->upl_filedir, sizeof CC->upl_filedir,
364 CC->upload_fp = fopen(CC->upl_path, "r");
365 if (CC->upload_fp != NULL) {
366 fclose(CC->upload_fp);
367 CC->upload_fp = NULL;
368 cprintf("%d '%s' already exists\n",
369 ERROR + ALREADY_EXISTS, CC->upl_path);
373 CC->upload_fp = fopen(CC->upl_path, "wb");
374 if (CC->upload_fp == NULL) {
375 cprintf("%d Cannot open %s: %s\n",
376 ERROR + INTERNAL_ERROR, CC->upl_path, strerror(errno));
379 cprintf("%d Ok\n", CIT_OK);
385 * open an image file for uploading
387 void cmd_uimg(char *cmdbuf)
389 int is_this_for_real;
394 if (num_parms(cmdbuf) < 2) {
395 cprintf("%d Usage error.\n", ERROR + ILLEGAL_VALUE);
399 is_this_for_real = extract_int(cmdbuf, 0);
400 extract_token(CC->upl_mimetype, cmdbuf, 1, '|', sizeof CC->upl_mimetype);
401 extract_token(basenm, cmdbuf, 2, '|', sizeof basenm);
402 if (CC->upload_fp != NULL) {
403 cprintf("%d You already have an upload file open.\n",
404 ERROR + RESOURCE_BUSY);
408 strcpy(CC->upl_path, "");
410 for (a = 0; !IsEmptyStr(&basenm[a]); ++a) {
411 basenm[a] = tolower(basenm[a]);
412 if ( (basenm[a] == '/') || (basenm[a] == '\\') ) {
417 if (CC->user.axlevel >= AxAideU) {
418 snprintf(CC->upl_path, sizeof CC->upl_path,
424 if (!strcasecmp(basenm, "_userpic_")) {
425 snprintf(CC->upl_path, sizeof CC->upl_path,
431 if ((!strcasecmp(basenm, "_floorpic_"))
432 && (CC->user.axlevel >= AxAideU)) {
433 which_floor = extract_int(cmdbuf, 2);
434 snprintf(CC->upl_path, sizeof CC->upl_path,
440 if ((!strcasecmp(basenm, "_roompic_")) && (is_room_aide())) {
441 assoc_file_name(CC->upl_path, sizeof CC->upl_path, &CC->room, ctdl_image_dir);
444 if (IsEmptyStr(CC->upl_path)) {
445 cprintf("%d Higher access required.\n",
446 ERROR + HIGHER_ACCESS_REQUIRED);
450 if (is_this_for_real == 0) {
451 cprintf("%d Ok to send image\n", CIT_OK);
455 CC->upload_fp = fopen(CC->upl_path, "wb");
456 if (CC->upload_fp == NULL) {
457 cprintf("%d Cannot open %s: %s\n",
458 ERROR + INTERNAL_ERROR, CC->upl_path, strerror(errno));
461 cprintf("%d Ok\n", CIT_OK);
462 CC->upload_type = UPL_IMAGE;
467 * close the download file
469 void cmd_clos(char *cmdbuf)
473 if (CC->download_fp == NULL) {
474 cprintf("%d You don't have a download file open.\n",
475 ERROR + RESOURCE_NOT_OPEN);
479 fclose(CC->download_fp);
480 CC->download_fp = NULL;
482 if (CC->dl_is_net == 1) {
484 snprintf(buf, sizeof buf,
491 cprintf("%d Ok\n", CIT_OK);
498 void abort_upl(CitContext *who)
500 if (who->upload_fp != NULL) {
501 fclose(who->upload_fp);
502 who->upload_fp = NULL;
503 unlink(CC->upl_path);
510 * close the upload file
512 void cmd_ucls(char *cmd)
515 char upload_notice[512];
518 if (CC->upload_fp == NULL) {
519 cprintf("%d You don't have an upload file open.\n", ERROR + RESOURCE_NOT_OPEN);
523 fclose(CC->upload_fp);
524 CC->upload_fp = NULL;
526 if ((!strcasecmp(cmd, "1")) && (CC->upload_type != UPL_FILE)) {
527 cprintf("%d Upload completed.\n", CIT_OK);
529 if (CC->upload_type == UPL_NET) {
530 char final_filename[PATH_MAX];
531 snprintf(final_filename, sizeof final_filename,
539 if (link(CC->upl_path, final_filename) == 0) {
540 unlink(CC->upl_path);
543 syslog(LOG_ALERT, "Cannot link %s to %s: %s\n",
544 CC->upl_path, final_filename, strerror(errno)
548 /* FIXME ... here we need to trigger a network run */
551 CC->upload_type = UPL_FILE;
555 if (!strcasecmp(cmd, "1")) {
556 cprintf("%d File '%s' saved.\n", CIT_OK, CC->upl_path);
557 fp = fopen(CC->upl_filedir, "a");
559 fp = fopen(CC->upl_filedir, "w");
562 fprintf(fp, "%s %s %s\n", CC->upl_file,
568 /* put together an upload notice */
569 snprintf(upload_notice, sizeof upload_notice,
570 "NEW UPLOAD: '%s'\n %s\n%s\n",
574 quickie_message(CC->curr_user, NULL, NULL, CC->room.QRname,
575 upload_notice, 0, NULL);
578 cprintf("%d File '%s' aborted.\n", CIT_OK, CC->upl_path);
584 * read from the download file
586 void cmd_read(char *cmdbuf)
593 /* The client will transmit its requested offset and byte count */
594 start_pos = extract_long(cmdbuf, 0);
595 bytes = extract_int(cmdbuf, 1);
596 if ((start_pos < 0) || (bytes <= 0)) {
597 cprintf("%d you have to specify a value > 0.\n", ERROR + ILLEGAL_VALUE);
601 if (CC->download_fp == NULL) {
602 cprintf("%d You don't have a download file open.\n",
603 ERROR + RESOURCE_NOT_OPEN);
607 /* If necessary, reduce the byte count to the size of our buffer */
608 if (bytes > sizeof(buf)) {
612 rc = fseek(CC->download_fp, start_pos, 0);
613 if (rc != start_pos) {
614 cprintf("%d your file is smaller then %ld.\n", ERROR + ILLEGAL_VALUE, start_pos);
617 bytes = fread(buf, 1, bytes, CC->download_fp);
619 /* Tell the client the actual byte count and transmit it */
620 cprintf("%d %d\n", BINARY_FOLLOWS, (int)bytes);
621 client_write(buf, bytes);
624 cprintf("%d %s\n", ERROR, strerror(errno));
630 * write to the upload file
632 void cmd_writ(char *cmdbuf)
640 bytes = extract_int(cmdbuf, 0);
642 if (CC->upload_fp == NULL) {
643 cprintf("%d You don't have an upload file open.\n", ERROR + RESOURCE_NOT_OPEN);
647 cprintf("%d you have to specify a value > 0.\n", ERROR + ILLEGAL_VALUE);
651 if (bytes > 100000) {
655 cprintf("%d %d\n", SEND_BINARY, bytes);
656 buf = malloc(bytes + 1);
657 client_read(buf, bytes);
658 rv = fwrite(buf, bytes, 1, CC->upload_fp);
660 syslog(LOG_EMERG, "Couldn't write: %s\n",
670 * cmd_ndop() - open a network spool file for downloading
672 void cmd_ndop(char *cmdbuf)
677 if (IsEmptyStr(CC->net_node)) {
678 cprintf("%d Not authenticated as a network node.\n",
679 ERROR + NOT_LOGGED_IN);
683 if (CC->download_fp != NULL) {
684 cprintf("%d You already have a download file open.\n",
685 ERROR + RESOURCE_BUSY);
689 snprintf(pathname, sizeof pathname,
694 /* first open the file in append mode in order to create a
695 * zero-length file if it doesn't already exist
697 CC->download_fp = fopen(pathname, "a");
698 if (CC->download_fp != NULL)
699 fclose(CC->download_fp);
702 CC->download_fp = fopen(pathname, "r");
703 if (CC->download_fp == NULL) {
704 cprintf("%d cannot open %s: %s\n",
705 ERROR + INTERNAL_ERROR, pathname, strerror(errno));
710 /* set this flag so other routines know that the download file
711 * currently open is a network spool file
715 stat(pathname, &statbuf);
716 CC->download_fp_total = statbuf.st_size;
717 cprintf("%d %ld\n", CIT_OK, (long)statbuf.st_size);
721 * cmd_nuop() - open a network spool file for uploading
723 void cmd_nuop(char *cmdbuf)
727 if (IsEmptyStr(CC->net_node)) {
728 cprintf("%d Not authenticated as a network node.\n",
729 ERROR + NOT_LOGGED_IN);
733 if (CC->upload_fp != NULL) {
734 cprintf("%d You already have an upload file open.\n",
735 ERROR + RESOURCE_BUSY);
739 snprintf(CC->upl_path, sizeof CC->upl_path,
746 CC->upload_fp = fopen(CC->upl_path, "r");
747 if (CC->upload_fp != NULL) {
748 fclose(CC->upload_fp);
749 CC->upload_fp = NULL;
750 cprintf("%d '%s' already exists\n",
751 ERROR + ALREADY_EXISTS, CC->upl_path);
755 CC->upload_fp = fopen(CC->upl_path, "w");
756 if (CC->upload_fp == NULL) {
757 cprintf("%d Cannot open %s: %s\n",
758 ERROR + INTERNAL_ERROR, CC->upl_path, strerror(errno));
762 CC->upload_type = UPL_NET;
763 cprintf("%d Ok\n", CIT_OK);
767 /*****************************************************************************/
768 /* MODULE INITIALIZATION STUFF */
769 /*****************************************************************************/
771 CTDL_MODULE_INIT(file_ops)
775 CtdlRegisterProtoHook(cmd_delf, "DELF", "Delete a file");
776 CtdlRegisterProtoHook(cmd_movf, "MOVF", "Move a file");
777 CtdlRegisterProtoHook(cmd_open, "OPEN", "Open a download file transfer");
778 CtdlRegisterProtoHook(cmd_clos, "CLOS", "Close a download file transfer");
779 CtdlRegisterProtoHook(cmd_uopn, "UOPN", "Open an upload file transfer");
780 CtdlRegisterProtoHook(cmd_ucls, "UCLS", "Close an upload file transfer");
781 CtdlRegisterProtoHook(cmd_read, "READ", "File transfer read operation");
782 CtdlRegisterProtoHook(cmd_writ, "WRIT", "File transfer write operation");
783 CtdlRegisterProtoHook(cmd_ndop, "NDOP", "Open a network spool file for download");
784 CtdlRegisterProtoHook(cmd_nuop, "NUOP", "Open a network spool file for upload");
785 CtdlRegisterProtoHook(cmd_oimg, "OIMG", "Open an image file for download");
786 CtdlRegisterProtoHook(cmd_uimg, "UIMG", "Upload an image file");
788 /* return our Subversion id for the Log */