+/*
+ * Server functions which handle file transfers and room directories.
+ */
+
+#include "sysdep.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <ctype.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+# include <sys/time.h>
+# else
+# include <time.h>
+# endif
+#endif
+
+#include <limits.h>
+#include <libcitadel.h>
+#include "citadel.h"
+#include "server.h"
+#include "config.h"
+#include "files.h"
+#include "sysdep_decls.h"
+#include "support.h"
+#include "room_ops.h"
+#include "msgbase.h"
+#include "citserver.h"
+#include "threads.h"
+#include "ctdl_module.h"
+#include "user_ops.h"
+
+
+
+/*
+ * Server command to delete a file from a room's directory
+ */
+void cmd_delf(char *filename)
+{
+ char pathname[64];
+ int a;
+
+ if (CtdlAccessCheck(ac_room_aide))
+ return;
+
+ if ((CC->room.QRflags & QR_DIRECTORY) == 0) {
+ cprintf("%d No directory in this room.\n",
+ ERROR + NOT_HERE);
+ return;
+ }
+
+ if (IsEmptyStr(filename)) {
+ cprintf("%d You must specify a file name.\n",
+ ERROR + FILE_NOT_FOUND);
+ return;
+ }
+ for (a = 0; !IsEmptyStr(&filename[a]); ++a) {
+ if ( (filename[a] == '/') || (filename[a] == '\\') ) {
+ filename[a] = '_';
+ }
+ }
+ snprintf(pathname, sizeof pathname,
+ "%s/%s/%s",
+ ctdl_file_dir,
+ CC->room.QRdirname, filename);
+ a = unlink(pathname);
+ if (a == 0) {
+ cprintf("%d File '%s' deleted.\n", CIT_OK, pathname);
+ }
+ else {
+ cprintf("%d File '%s' not found.\n",
+ ERROR + FILE_NOT_FOUND, pathname);
+ }
+}
+
+
+
+
+/*
+ * move a file from one room directory to another
+ */
+void cmd_movf(char *cmdbuf)
+{
+ char filename[PATH_MAX];
+ char pathname[PATH_MAX];
+ char newpath[PATH_MAX];
+ char newroom[ROOMNAMELEN];
+ char buf[PATH_MAX];
+ int a;
+ struct ctdlroom qrbuf;
+
+ extract_token(filename, cmdbuf, 0, '|', sizeof filename);
+ extract_token(newroom, cmdbuf, 1, '|', sizeof newroom);
+
+ if (CtdlAccessCheck(ac_room_aide)) return;
+
+ if ((CC->room.QRflags & QR_DIRECTORY) == 0) {
+ cprintf("%d No directory in this room.\n",
+ ERROR + NOT_HERE);
+ return;
+ }
+
+ if (IsEmptyStr(filename)) {
+ cprintf("%d You must specify a file name.\n",
+ ERROR + FILE_NOT_FOUND);
+ return;
+ }
+
+ for (a = 0; !IsEmptyStr(&filename[a]); ++a) {
+ if ( (filename[a] == '/') || (filename[a] == '\\') ) {
+ filename[a] = '_';
+ }
+ }
+ snprintf(pathname, sizeof pathname, "./files/%s/%s",
+ CC->room.QRdirname, filename);
+ if (access(pathname, 0) != 0) {
+ cprintf("%d File '%s' not found.\n",
+ ERROR + FILE_NOT_FOUND, pathname);
+ return;
+ }
+
+ if (CtdlGetRoom(&qrbuf, newroom) != 0) {
+ cprintf("%d '%s' does not exist.\n", ERROR + ROOM_NOT_FOUND, newroom);
+ return;
+ }
+ if ((qrbuf.QRflags & QR_DIRECTORY) == 0) {
+ cprintf("%d '%s' is not a directory room.\n",
+ ERROR + NOT_HERE, qrbuf.QRname);
+ return;
+ }
+ snprintf(newpath, sizeof newpath, "./files/%s/%s", qrbuf.QRdirname,
+ filename);
+ if (link(pathname, newpath) != 0) {
+ cprintf("%d Couldn't move file: %s\n", ERROR + INTERNAL_ERROR,
+ strerror(errno));
+ return;
+ }
+ unlink(pathname);
+
+ /* this is a crude method of copying the file description */
+ snprintf(buf, sizeof buf,
+ "cat ./files/%s/filedir |grep \"%s\" >>./files/%s/filedir",
+ CC->room.QRdirname, filename, qrbuf.QRdirname);
+ system(buf);
+ cprintf("%d File '%s' has been moved.\n", CIT_OK, filename);
+}
+
+
+/*
+ * This code is common to all commands which open a file for downloading,
+ * regardless of whether it's a file from the directory, an image, a network
+ * spool file, a MIME attachment, etc.
+ * It examines the file and displays the OK result code and some information
+ * about the file. NOTE: this stuff is Unix dependent.
+ */
+void OpenCmdResult(char *filename, const char *mime_type)
+{
+ struct stat statbuf;
+ time_t modtime;
+ long filesize;
+
+ fstat(fileno(CC->download_fp), &statbuf);
+ CC->download_fp_total = statbuf.st_size;
+ filesize = (long) statbuf.st_size;
+ modtime = (time_t) statbuf.st_mtime;
+
+ cprintf("%d %ld|%ld|%s|%s\n",
+ CIT_OK, filesize, (long)modtime, filename, mime_type);
+}
+
+
+/*
+ * open a file for downloading
+ */
+void cmd_open(char *cmdbuf)
+{
+ char filename[256];
+ char pathname[PATH_MAX];
+ int a;
+
+ extract_token(filename, cmdbuf, 0, '|', sizeof filename);
+
+ if (CtdlAccessCheck(ac_logged_in)) return;
+
+ if ((CC->room.QRflags & QR_DIRECTORY) == 0) {
+ cprintf("%d No directory in this room.\n",
+ ERROR + NOT_HERE);
+ return;
+ }
+
+ if (IsEmptyStr(filename)) {
+ cprintf("%d You must specify a file name.\n",
+ ERROR + FILE_NOT_FOUND);
+ return;
+ }
+ if (strstr(filename, "../") != NULL)
+ {
+ cprintf("%d syntax error.\n",
+ ERROR + ILLEGAL_VALUE);
+ return;
+ }
+
+ if (CC->download_fp != NULL) {
+ cprintf("%d You already have a download file open.\n",
+ ERROR + RESOURCE_BUSY);
+ return;
+ }
+
+ for (a = 0; !IsEmptyStr(&filename[a]); ++a) {
+ if ( (filename[a] == '/') || (filename[a] == '\\') ) {
+ filename[a] = '_';
+ }
+ }
+
+ snprintf(pathname, sizeof pathname,
+ "%s/%s/%s",
+ ctdl_file_dir,
+ CC->room.QRdirname, filename);
+ CC->download_fp = fopen(pathname, "r");
+
+ if (CC->download_fp == NULL) {
+ cprintf("%d cannot open %s: %s\n",
+ ERROR + INTERNAL_ERROR, pathname, strerror(errno));
+ return;
+ }
+
+ OpenCmdResult(filename, "application/octet-stream");
+}
+
+/*
+ * open an image file
+ */
+void cmd_oimg(char *cmdbuf)
+{
+ char filename[256];
+ char pathname[PATH_MAX];
+ char MimeTestBuf[32];
+ struct ctdluser usbuf;
+ char which_user[USERNAME_SIZE];
+ int which_floor;
+ int a;
+ int rv;
+
+ extract_token(filename, cmdbuf, 0, '|', sizeof filename);
+
+ if (IsEmptyStr(filename)) {
+ cprintf("%d You must specify a file name.\n",
+ ERROR + FILE_NOT_FOUND);
+ return;
+ }
+
+ if (CC->download_fp != NULL) {
+ cprintf("%d You already have a download file open.\n",
+ ERROR + RESOURCE_BUSY);
+ return;
+ }
+
+ if (!strcasecmp(filename, "_userpic_")) {
+ extract_token(which_user, cmdbuf, 1, '|', sizeof which_user);
+ if (CtdlGetUser(&usbuf, which_user) != 0) {
+ cprintf("%d No such user.\n",
+ ERROR + NO_SUCH_USER);
+ return;
+ }
+ snprintf(pathname, sizeof pathname,
+ "%s/%ld",
+ ctdl_usrpic_dir,
+ usbuf.usernum);
+ } else if (!strcasecmp(filename, "_floorpic_")) {
+ which_floor = extract_int(cmdbuf, 1);
+ snprintf(pathname, sizeof pathname,
+ "%s/floor.%d",
+ ctdl_image_dir, which_floor);
+ } else if (!strcasecmp(filename, "_roompic_")) {
+ assoc_file_name(pathname, sizeof pathname, &CC->room, ctdl_image_dir);
+ } else {
+ for (a = 0; !IsEmptyStr(&filename[a]); ++a) {
+ filename[a] = tolower(filename[a]);
+ if ( (filename[a] == '/') || (filename[a] == '\\') ) {
+ filename[a] = '_';
+ }
+ }
+ if (strstr(filename, "../") != NULL)
+ {
+ cprintf("%d syntax error.\n",
+ ERROR + ILLEGAL_VALUE);
+ return;
+ }
+
+ snprintf(pathname, sizeof pathname,
+ "%s/%s",
+ ctdl_image_dir,
+ filename);
+ }
+
+ CC->download_fp = fopen(pathname, "rb");
+ if (CC->download_fp == NULL) {
+ strcat(pathname, ".gif");
+ CC->download_fp = fopen(pathname, "rb");
+ }
+ if (CC->download_fp == NULL) {
+ cprintf("%d Cannot open %s: %s\n",
+ ERROR + FILE_NOT_FOUND, pathname, strerror(errno));
+ return;
+ }
+ rv = fread(&MimeTestBuf[0], 1, 32, CC->download_fp);
+ if (rv == -1) {
+ cprintf("%d Cannot access %s: %s\n",
+ ERROR + FILE_NOT_FOUND, pathname, strerror(errno));
+ return;
+ }
+
+ rewind (CC->download_fp);
+ OpenCmdResult(pathname, GuessMimeType(&MimeTestBuf[0], 32));
+}
+
+/*
+ * open a file for uploading
+ */
+void cmd_uopn(char *cmdbuf)
+{
+ int a;
+
+ extract_token(CC->upl_file, cmdbuf, 0, '|', sizeof CC->upl_file);
+ extract_token(CC->upl_mimetype, cmdbuf, 1, '|', sizeof CC->upl_mimetype);
+ extract_token(CC->upl_comment, cmdbuf, 2, '|', sizeof CC->upl_comment);
+
+ if (CtdlAccessCheck(ac_logged_in)) return;
+
+ if ((CC->room.QRflags & QR_DIRECTORY) == 0) {
+ cprintf("%d No directory in this room.\n",
+ ERROR + NOT_HERE);
+ return;
+ }
+
+ if (IsEmptyStr(CC->upl_file)) {
+ cprintf("%d You must specify a file name.\n",
+ ERROR + FILE_NOT_FOUND);
+ return;
+ }
+
+ if (CC->upload_fp != NULL) {
+ cprintf("%d You already have a upload file open.\n",
+ ERROR + RESOURCE_BUSY);
+ return;
+ }
+
+ for (a = 0; !IsEmptyStr(&CC->upl_file[a]); ++a) {
+ if ( (CC->upl_file[a] == '/') || (CC->upl_file[a] == '\\') ) {
+ CC->upl_file[a] = '_';
+ }
+ }
+ snprintf(CC->upl_path, sizeof CC->upl_path,
+ "%s/%s/%s",
+ ctdl_file_dir,
+ CC->room.QRdirname, CC->upl_file);
+ snprintf(CC->upl_filedir, sizeof CC->upl_filedir,
+ "%s/%s/filedir",
+ ctdl_file_dir,
+ CC->room.QRdirname);
+
+ CC->upload_fp = fopen(CC->upl_path, "r");
+ if (CC->upload_fp != NULL) {
+ fclose(CC->upload_fp);
+ CC->upload_fp = NULL;
+ cprintf("%d '%s' already exists\n",
+ ERROR + ALREADY_EXISTS, CC->upl_path);
+ return;
+ }
+
+ CC->upload_fp = fopen(CC->upl_path, "wb");
+ if (CC->upload_fp == NULL) {
+ cprintf("%d Cannot open %s: %s\n",
+ ERROR + INTERNAL_ERROR, CC->upl_path, strerror(errno));
+ return;
+ }
+ cprintf("%d Ok\n", CIT_OK);
+}
+
+
+
+/*
+ * open an image file for uploading
+ */
+void cmd_uimg(char *cmdbuf)
+{
+ int is_this_for_real;
+ char basenm[256];
+ int which_floor;
+ int a;
+
+ if (num_parms(cmdbuf) < 2) {
+ cprintf("%d Usage error.\n", ERROR + ILLEGAL_VALUE);
+ return;
+ }
+
+ is_this_for_real = extract_int(cmdbuf, 0);
+ extract_token(CC->upl_mimetype, cmdbuf, 1, '|', sizeof CC->upl_mimetype);
+ extract_token(basenm, cmdbuf, 2, '|', sizeof basenm);
+ if (CC->upload_fp != NULL) {
+ cprintf("%d You already have an upload file open.\n",
+ ERROR + RESOURCE_BUSY);
+ return;
+ }
+
+ strcpy(CC->upl_path, "");
+
+ for (a = 0; !IsEmptyStr(&basenm[a]); ++a) {
+ basenm[a] = tolower(basenm[a]);
+ if ( (basenm[a] == '/') || (basenm[a] == '\\') ) {
+ basenm[a] = '_';
+ }
+ }
+
+ if (CC->user.axlevel >= AxAideU) {
+ snprintf(CC->upl_path, sizeof CC->upl_path,
+ "%s/%s",
+ ctdl_image_dir,
+ basenm);
+ }
+
+ if (!strcasecmp(basenm, "_userpic_")) {
+ snprintf(CC->upl_path, sizeof CC->upl_path,
+ "%s/%ld.gif",
+ ctdl_usrpic_dir,
+ CC->user.usernum);
+ }
+
+ if ((!strcasecmp(basenm, "_floorpic_"))
+ && (CC->user.axlevel >= AxAideU)) {
+ which_floor = extract_int(cmdbuf, 2);
+ snprintf(CC->upl_path, sizeof CC->upl_path,
+ "%s/floor.%d.gif",
+ ctdl_image_dir,
+ which_floor);
+ }
+
+ if ((!strcasecmp(basenm, "_roompic_")) && (is_room_aide())) {
+ assoc_file_name(CC->upl_path, sizeof CC->upl_path, &CC->room, ctdl_image_dir);
+ }
+
+ if (IsEmptyStr(CC->upl_path)) {
+ cprintf("%d Higher access required.\n",
+ ERROR + HIGHER_ACCESS_REQUIRED);
+ return;
+ }
+
+ if (is_this_for_real == 0) {
+ cprintf("%d Ok to send image\n", CIT_OK);
+ return;
+ }
+
+ CC->upload_fp = fopen(CC->upl_path, "wb");
+ if (CC->upload_fp == NULL) {
+ cprintf("%d Cannot open %s: %s\n",
+ ERROR + INTERNAL_ERROR, CC->upl_path, strerror(errno));
+ return;
+ }
+ cprintf("%d Ok\n", CIT_OK);
+ CC->upload_type = UPL_IMAGE;
+}
+
+
+/*
+ * close the download file
+ */
+void cmd_clos(char *cmdbuf)
+{
+ char buf[256];
+
+ if (CC->download_fp == NULL) {
+ cprintf("%d You don't have a download file open.\n",
+ ERROR + RESOURCE_NOT_OPEN);
+ return;
+ }
+
+ fclose(CC->download_fp);
+ CC->download_fp = NULL;
+
+ if (CC->dl_is_net == 1) {
+ CC->dl_is_net = 0;
+ snprintf(buf, sizeof buf,
+ "%s/%s",
+ ctdl_netout_dir,
+ CC->net_node);
+ unlink(buf);
+ }
+
+ cprintf("%d Ok\n", CIT_OK);
+}
+
+
+/*
+ * abort an upload
+ */
+void abort_upl(CitContext *who)
+{
+ if (who->upload_fp != NULL) {
+ fclose(who->upload_fp);
+ who->upload_fp = NULL;
+ unlink(CC->upl_path);
+ }
+}
+
+
+
+/*
+ * close the upload file
+ */
+void cmd_ucls(char *cmd)
+{
+ FILE *fp;
+ char upload_notice[512];
+ static int seq = 0;
+
+ if (CC->upload_fp == NULL) {
+ cprintf("%d You don't have an upload file open.\n", ERROR + RESOURCE_NOT_OPEN);
+ return;
+ }
+
+ fclose(CC->upload_fp);
+ CC->upload_fp = NULL;
+
+ if ((!strcasecmp(cmd, "1")) && (CC->upload_type != UPL_FILE)) {
+ cprintf("%d Upload completed.\n", CIT_OK);
+
+ if (CC->upload_type == UPL_NET) {
+ char final_filename[PATH_MAX];
+ snprintf(final_filename, sizeof final_filename,
+ "%s/%s.%04lx.%04x",
+ ctdl_netin_dir,
+ CC->net_node,
+ (long)getpid(),
+ ++seq
+ );
+
+ if (link(CC->upl_path, final_filename) == 0) {
+ syslog(LOG_INFO, "UCLS: updoaded %s\n",
+ final_filename);
+ unlink(CC->upl_path);
+ }
+ else {
+ syslog(LOG_ALERT, "Cannot link %s to %s: %s\n",
+ CC->upl_path, final_filename, strerror(errno)
+ );
+ }
+
+
+ /* FIXME ... here we need to trigger a network run */
+ }
+
+ CC->upload_type = UPL_FILE;
+ return;
+ }
+
+ if (!strcasecmp(cmd, "1")) {
+ cprintf("%d File '%s' saved.\n", CIT_OK, CC->upl_path);
+ fp = fopen(CC->upl_filedir, "a");
+ if (fp == NULL) {
+ fp = fopen(CC->upl_filedir, "w");
+ }
+ if (fp != NULL) {
+ fprintf(fp, "%s %s %s\n", CC->upl_file,
+ CC->upl_mimetype,
+ CC->upl_comment);
+ fclose(fp);
+ }
+
+ /* put together an upload notice */
+ snprintf(upload_notice, sizeof upload_notice,
+ "NEW UPLOAD: '%s'\n %s\n%s\n",
+ CC->upl_file,
+ CC->upl_comment,
+ CC->upl_mimetype);
+ quickie_message(CC->curr_user, NULL, NULL, CC->room.QRname,
+ upload_notice, 0, NULL);
+ } else {
+ abort_upl(CC);
+ cprintf("%d File '%s' aborted.\n", CIT_OK, CC->upl_path);
+ }
+}
+
+
+/*
+ * read from the download file
+ */
+void cmd_read(char *cmdbuf)
+{
+ long start_pos;
+ size_t bytes;
+ char buf[SIZ];
+ int rc;
+
+ /* The client will transmit its requested offset and byte count */
+ start_pos = extract_long(cmdbuf, 0);
+ bytes = extract_int(cmdbuf, 1);
+ if ((start_pos < 0) || (bytes <= 0)) {
+ cprintf("%d you have to specify a value > 0.\n", ERROR + ILLEGAL_VALUE);
+ return;
+ }
+
+ if (CC->download_fp == NULL) {
+ cprintf("%d You don't have a download file open.\n",
+ ERROR + RESOURCE_NOT_OPEN);
+ return;
+ }
+
+ /* If necessary, reduce the byte count to the size of our buffer */
+ if (bytes > sizeof(buf)) {
+ bytes = sizeof(buf);
+ }
+
+ rc = fseek(CC->download_fp, start_pos, 0);
+ if (rc < 0) {
+ cprintf("%d your file is smaller then %ld.\n", ERROR + ILLEGAL_VALUE, start_pos);
+ syslog(LOG_ALERT, "your file %s is smaller then %ld. [%s]\n",
+ CC->upl_path,
+ start_pos,
+ strerror(errno));
+
+ return;
+ }
+ bytes = fread(buf, 1, bytes, CC->download_fp);
+ if (bytes > 0) {
+ /* Tell the client the actual byte count and transmit it */
+ cprintf("%d %d\n", BINARY_FOLLOWS, (int)bytes);
+ client_write(buf, bytes);
+ }
+ else {
+ cprintf("%d %s\n", ERROR, strerror(errno));
+ }
+}
+
+
+/*
+ * write to the upload file
+ */
+void cmd_writ(char *cmdbuf)
+{
+ int bytes;
+ char *buf;
+ int rv;
+
+ unbuffer_output();
+
+ bytes = extract_int(cmdbuf, 0);
+
+ if (CC->upload_fp == NULL) {
+ cprintf("%d You don't have an upload file open.\n", ERROR + RESOURCE_NOT_OPEN);
+ return;
+ }
+ if (bytes <= 0) {
+ cprintf("%d you have to specify a value > 0.\n", ERROR + ILLEGAL_VALUE);
+ return;
+ }
+
+ if (bytes > 100000) {
+ bytes = 100000;
+ }
+
+ cprintf("%d %d\n", SEND_BINARY, bytes);
+ buf = malloc(bytes + 1);
+ client_read(buf, bytes);
+ rv = fwrite(buf, bytes, 1, CC->upload_fp);
+ if (rv == -1) {
+ syslog(LOG_EMERG, "Couldn't write: %s\n",
+ strerror(errno));
+ }
+ free(buf);
+}
+
+
+
+
+/*
+ * cmd_ndop() - open a network spool file for downloading
+ */
+void cmd_ndop(char *cmdbuf)
+{
+ char pathname[256];
+ struct stat statbuf;
+
+ if (IsEmptyStr(CC->net_node)) {
+ cprintf("%d Not authenticated as a network node.\n",
+ ERROR + NOT_LOGGED_IN);
+ return;
+ }
+
+ if (CC->download_fp != NULL) {
+ cprintf("%d You already have a download file open.\n",
+ ERROR + RESOURCE_BUSY);
+ return;
+ }
+
+ snprintf(pathname, sizeof pathname,
+ "%s/%s",
+ ctdl_netout_dir,
+ CC->net_node);
+
+ /* first open the file in append mode in order to create a
+ * zero-length file if it doesn't already exist
+ */
+ CC->download_fp = fopen(pathname, "a");
+ if (CC->download_fp != NULL)
+ fclose(CC->download_fp);
+
+ /* now open it */
+ CC->download_fp = fopen(pathname, "r");
+ if (CC->download_fp == NULL) {
+ cprintf("%d cannot open %s: %s\n",
+ ERROR + INTERNAL_ERROR, pathname, strerror(errno));
+ return;
+ }
+
+
+ /* set this flag so other routines know that the download file
+ * currently open is a network spool file
+ */
+ CC->dl_is_net = 1;
+
+ stat(pathname, &statbuf);
+ CC->download_fp_total = statbuf.st_size;
+ cprintf("%d %ld\n", CIT_OK, (long)statbuf.st_size);
+}
+
+/*
+ * cmd_nuop() - open a network spool file for uploading
+ */
+void cmd_nuop(char *cmdbuf)
+{
+ static int seq = 1;
+
+ if (IsEmptyStr(CC->net_node)) {
+ cprintf("%d Not authenticated as a network node.\n",
+ ERROR + NOT_LOGGED_IN);
+ return;
+ }
+
+ if (CC->upload_fp != NULL) {
+ cprintf("%d You already have an upload file open.\n",
+ ERROR + RESOURCE_BUSY);
+ return;
+ }
+
+ snprintf(CC->upl_path, sizeof CC->upl_path,
+ "%s/%s.%04lx.%04x",
+ ctdl_nettmp_dir,
+ CC->net_node,
+ (long)getpid(),
+ ++seq);
+
+ CC->upload_fp = fopen(CC->upl_path, "r");
+ if (CC->upload_fp != NULL) {
+ fclose(CC->upload_fp);
+ CC->upload_fp = NULL;
+ cprintf("%d '%s' already exists\n",
+ ERROR + ALREADY_EXISTS, CC->upl_path);
+ return;
+ }
+
+ CC->upload_fp = fopen(CC->upl_path, "w");
+ if (CC->upload_fp == NULL) {
+ cprintf("%d Cannot open %s: %s\n",
+ ERROR + INTERNAL_ERROR, CC->upl_path, strerror(errno));
+ return;
+ }
+
+ CC->upload_type = UPL_NET;
+ cprintf("%d Ok\n", CIT_OK);
+}
+void files_logout_hook(void)
+{
+ CitContext *CCC = MyContext();
+
+ /*
+ * If there is a download in progress, abort it.
+ */
+ if (CCC->download_fp != NULL) {
+ fclose(CCC->download_fp);
+ CCC->download_fp = NULL;
+ }
+
+ /*
+ * If there is an upload in progress, abort it.
+ */
+ if (CCC->upload_fp != NULL) {
+ abort_upl(CCC);
+ }
+
+}
+
+
+/*****************************************************************************/
+/* MODULE INITIALIZATION STUFF */
+/*****************************************************************************/
+
+CTDL_MODULE_INIT(file_ops)
+{
+ if (!threading) {
+ CtdlRegisterSessionHook(files_logout_hook, EVT_LOGOUT, PRIO_LOGOUT + 8);
+
+ CtdlRegisterProtoHook(cmd_delf, "DELF", "Delete a file");
+ CtdlRegisterProtoHook(cmd_movf, "MOVF", "Move a file");
+ CtdlRegisterProtoHook(cmd_open, "OPEN", "Open a download file transfer");
+ CtdlRegisterProtoHook(cmd_clos, "CLOS", "Close a download file transfer");
+ CtdlRegisterProtoHook(cmd_uopn, "UOPN", "Open an upload file transfer");
+ CtdlRegisterProtoHook(cmd_ucls, "UCLS", "Close an upload file transfer");
+ CtdlRegisterProtoHook(cmd_read, "READ", "File transfer read operation");
+ CtdlRegisterProtoHook(cmd_writ, "WRIT", "File transfer write operation");
+ CtdlRegisterProtoHook(cmd_ndop, "NDOP", "Open a network spool file for download");
+ CtdlRegisterProtoHook(cmd_nuop, "NUOP", "Open a network spool file for upload");
+ CtdlRegisterProtoHook(cmd_oimg, "OIMG", "Open an image file for download");
+ CtdlRegisterProtoHook(cmd_uimg, "UIMG", "Upload an image file");
+ }
+ /* return our Subversion id for the Log */
+ return "file_ops";
+}