citadel/utillib/citadel_dirs.c

   1 /*
   2  * citadel_dirs.c : calculate pathnames for various files used in the Citadel system
   3  *
   4  * Copyright (c) 1987-2021 by the citadel.org team
   5  *
   6  *  This program is open source software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License version 3.
   8  *
   9  *  This program is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *  GNU General Public License for more details.
  13  */
  14 #include <unistd.h>
  15 #include <stdio.h>
  16 #include <sys/stat.h>
  17 #include <ctype.h>
  18 #include <string.h>
  19 #include <limits.h>
  20 #include <time.h>
  21 #include <errno.h>
  22 #include <syslog.h>
  23 #include <libcitadel.h>
  24 #include "citadel.h"
  25 #include "citadel_dirs.h"
  26
  27 /* our directories... */
  28 char ctdl_home_directory[PATH_MAX] = "";
  29 char ctdl_data_dir[PATH_MAX]="data";
  30 char ctdl_file_dir[PATH_MAX]="files";
  31 char ctdl_shared_dir[PATH_MAX]="";
  32 char ctdl_image_dir[PATH_MAX]="images";
  33 char ctdl_info_dir[PATH_MAX]="info";
  34 char ctdl_key_dir[PATH_MAX]=SSL_DIR;
  35 char ctdl_message_dir[PATH_MAX]="messages";
  36 char ctdl_usrpic_dir[PATH_MAX]="userpics";
  37 char ctdl_bbsbase_dir[PATH_MAX]="";
  38 char ctdl_autoetc_dir[PATH_MAX]="";
  39 /* attention! this may be non volatile on some oses */
  40 char ctdl_run_dir[PATH_MAX]="";
  41 char ctdl_spool_dir[PATH_MAX]="network";
  42 char ctdl_netdigest_dir[PATH_MAX]="network/digest";
  43 char ctdl_nettmp_dir[PATH_MAX]="network/spooltmp";
  44 char ctdl_netcfg_dir[PATH_MAX]="netconfigs";
  45 char ctdl_utilbin_dir[PATH_MAX]="";
  46 char ctdl_sbin_dir[PATH_MAX]="";
  47 char ctdl_bin_dir[PATH_MAX]="";
  48
  49 /* some of our files, that are needed in several places */
  50 char file_citadel_config[PATH_MAX]="";
  51 char file_lmtp_socket[PATH_MAX]="";
  52 char file_lmtp_unfiltered_socket[PATH_MAX]="";
  53 char file_arcq[PATH_MAX]="";
  54 char file_citadel_socket[PATH_MAX]="";
  55 char file_citadel_admin_socket[PATH_MAX]="";
  56 char file_mail_aliases[PATH_MAX]="";
  57 char file_pid_file[PATH_MAX]="";
  58 char file_pid_paniclog[PATH_MAX]="";
  59 char file_crpt_file_key[PATH_MAX]="";
  60 char file_crpt_file_csr[PATH_MAX]="";
  61 char file_crpt_file_cer[PATH_MAX]="";
  62 char file_chkpwd[PATH_MAX]="";
  63 char file_guesstimezone[PATH_MAX]="";
  64
  65
  66
  67
  68
  69 #define COMPUTE_DIRECTORY(SUBDIR) memcpy(dirbuffer,SUBDIR, sizeof dirbuffer);\
  70         snprintf(SUBDIR,sizeof SUBDIR,  "%s%s%s%s%s%s%s", \
  71                          (home&!relh)?ctdl_home_directory:basedir, \
  72              ((basedir!=ctdldir)&(home&!relh))?basedir:"/", \
  73              ((basedir!=ctdldir)&(home&!relh))?"/":"", \
  74                          relhome, \
  75              (relhome[0]!='\0')?"/":"",\
  76                          dirbuffer,\
  77                          (dirbuffer[0]!='\0')?"/":"");
  78
  79 #define DBG_PRINT(A) if (dbg==1) fprintf (stderr,"%s : %s \n", #A, A)
  80
  81
  82 void calc_dirs_n_files(int relh, int home, const char *relhome, char  *ctdldir, int dbg)
  83 {
  84         const char* basedir = "";
  85         char dirbuffer[PATH_MAX] = "";
  86
  87         /*
  88          * Ok, we keep our binaries either in the citadel base dir,
  89          * or in /usr/sbin / /usr/bin
  90          */
  91         StripSlashes(ctdldir, 1);
  92 #ifdef HAVE_ETC_DIR
  93         snprintf(ctdl_sbin_dir, sizeof ctdl_sbin_dir, "/usr/sbin/");
  94         snprintf(ctdl_bin_dir, sizeof ctdl_bin_dir, "/usr/bin/");
  95 #else
  96         snprintf(ctdl_sbin_dir, sizeof ctdl_sbin_dir, ctdldir);
  97         snprintf(ctdl_bin_dir, sizeof ctdl_bin_dir, ctdldir);
  98 #endif
  99         StripSlashes(ctdl_sbin_dir, 1);
 100         StripSlashes(ctdl_bin_dir, 1);
 101
 102 #ifndef HAVE_AUTO_ETC_DIR
 103         basedir=ctdldir;
 104 #else
 105         basedir=AUTO_ETC_DIR;
 106 #endif
 107         COMPUTE_DIRECTORY(ctdl_autoetc_dir);
 108         StripSlashes(ctdl_autoetc_dir, 1);
 109
 110 #ifndef HAVE_ETC_DIR
 111         basedir=ctdldir;
 112 #else
 113         basedir=ETC_DIR;
 114 #endif
 115         COMPUTE_DIRECTORY(ctdl_netcfg_dir);
 116         StripSlashes(ctdl_netcfg_dir, 1);
 117
 118 #ifndef HAVE_UTILBIN_DIR
 119         basedir=ctdldir;
 120 #else
 121         basedir=UTILBIN_DIR;
 122 #endif
 123         COMPUTE_DIRECTORY(ctdl_utilbin_dir);
 124         StripSlashes(ctdl_utilbin_dir, 1);
 125
 126 #ifndef HAVE_RUN_DIR
 127         basedir=ctdldir;
 128 #else
 129         basedir=RUN_DIR;
 130 #endif
 131         COMPUTE_DIRECTORY(ctdl_run_dir);
 132         StripSlashes(ctdl_run_dir, 1);
 133
 134 #ifndef HAVE_STATICDATA_DIR
 135         basedir=ctdldir;
 136 #else
 137         basedir=STATICDATA_DIR;
 138 #endif
 139         COMPUTE_DIRECTORY(ctdl_message_dir);
 140         StripSlashes(ctdl_message_dir, 1);
 141
 142 #ifndef HAVE_DATA_DIR
 143         basedir=ctdldir;
 144 #else
 145         basedir=DATA_DIR;
 146 #endif
 147         COMPUTE_DIRECTORY(ctdl_data_dir);
 148         COMPUTE_DIRECTORY(ctdl_file_dir);
 149         COMPUTE_DIRECTORY(ctdl_image_dir);
 150         COMPUTE_DIRECTORY(ctdl_info_dir);
 151         COMPUTE_DIRECTORY(ctdl_usrpic_dir);
 152         COMPUTE_DIRECTORY(ctdl_bbsbase_dir);
 153
 154         StripSlashes(ctdl_data_dir, 1);
 155         StripSlashes(ctdl_file_dir, 1);
 156         StripSlashes(ctdl_image_dir, 1);
 157         StripSlashes(ctdl_info_dir, 1);
 158         StripSlashes(ctdl_usrpic_dir, 1);
 159         StripSlashes(ctdl_bbsbase_dir, 1);
 160
 161 #ifndef HAVE_SPOOL_DIR
 162         basedir=ctdldir;
 163 #else
 164         basedir=SPOOL_DIR;
 165 #endif
 166         COMPUTE_DIRECTORY(ctdl_spool_dir);
 167         COMPUTE_DIRECTORY(ctdl_netdigest_dir);
 168         COMPUTE_DIRECTORY(ctdl_nettmp_dir);
 169
 170         StripSlashes(ctdl_spool_dir, 1);
 171         StripSlashes(ctdl_netdigest_dir, 1);
 172         StripSlashes(ctdl_nettmp_dir, 1);
 173
 174         /* ok, now we know the dirs, calc some commonly used files */
 175
 176         snprintf(file_arcq,
 177                          sizeof file_arcq,
 178                          "%srefcount_adjustments.dat",
 179                          ctdl_autoetc_dir);
 180         StripSlashes(file_arcq, 0);
 181
 182         snprintf(file_citadel_config,
 183                          sizeof file_citadel_config,
 184                          "%scitadel.config",
 185                          ctdl_autoetc_dir);
 186         StripSlashes(file_citadel_config, 0);
 187         snprintf(file_lmtp_socket,
 188                          sizeof file_lmtp_socket,
 189                          "%slmtp.socket",
 190                          ctdl_run_dir);
 191         StripSlashes(file_lmtp_socket, 0);
 192         snprintf(file_lmtp_unfiltered_socket,
 193                          sizeof file_lmtp_socket,
 194                          "%slmtp-unfiltered.socket",
 195                          ctdl_run_dir);
 196         StripSlashes(file_lmtp_unfiltered_socket, 0);
 197         snprintf(file_citadel_socket,
 198                          sizeof file_citadel_socket,
 199                                 "%scitadel.socket",
 200                          ctdl_run_dir);
 201         StripSlashes(file_citadel_socket, 0);
 202         snprintf(file_citadel_admin_socket,
 203                          sizeof file_citadel_admin_socket,
 204                                 "%scitadel-admin.socket",
 205                          ctdl_run_dir);
 206         StripSlashes(file_citadel_admin_socket, 0);
 207         snprintf(file_pid_file,
 208                  sizeof file_pid_file,
 209                  "%scitadel.pid",
 210                  ctdl_run_dir);
 211         StripSlashes(file_pid_file, 0);
 212         snprintf(file_pid_paniclog,
 213                  sizeof file_pid_paniclog,
 214                  "%spanic.log",
 215                  ctdl_home_directory);
 216         StripSlashes(file_pid_paniclog, 0);
 217         snprintf(file_crpt_file_key,
 218                  sizeof file_crpt_file_key,
 219                  "%s/citadel.key",
 220                  ctdl_key_dir);
 221         StripSlashes(file_crpt_file_key, 0);
 222         snprintf(file_crpt_file_csr,
 223                  sizeof file_crpt_file_csr,
 224                  "%s/citadel.csr",
 225                  ctdl_key_dir);
 226         StripSlashes(file_crpt_file_csr, 0);
 227         snprintf(file_crpt_file_cer,
 228                  sizeof file_crpt_file_cer,
 229                  "%s/citadel.cer",
 230                  ctdl_key_dir);
 231         StripSlashes(file_crpt_file_cer, 0);
 232         snprintf(file_chkpwd,
 233                  sizeof file_chkpwd,
 234                  "%schkpwd",
 235                  ctdl_utilbin_dir);
 236         StripSlashes(file_chkpwd, 0);
 237         snprintf(file_guesstimezone,
 238                  sizeof file_guesstimezone,
 239                  "%sguesstimezone.sh",
 240                  ctdl_utilbin_dir);
 241
 242         /*
 243          * DIRTY HACK FOLLOWS! due to configs in the network dir in the
 244          * legacy installations, we need to calculate ifdeffed here.
 245          */
 246         snprintf(file_mail_aliases,
 247                  sizeof file_mail_aliases,
 248                  "%smail.aliases",
 249                  ctdl_spool_dir
 250                 );
 251         StripSlashes(file_mail_aliases, 0);
 252
 253         DBG_PRINT(ctdl_data_dir);
 254         DBG_PRINT(ctdl_file_dir);
 255         DBG_PRINT(ctdl_image_dir);
 256         DBG_PRINT(ctdl_info_dir);
 257         DBG_PRINT(ctdl_key_dir);
 258         DBG_PRINT(ctdl_message_dir);
 259         DBG_PRINT(ctdl_usrpic_dir);
 260         DBG_PRINT(ctdl_run_dir);
 261         DBG_PRINT(ctdl_spool_dir);
 262         DBG_PRINT(ctdl_netdigest_dir);
 263         DBG_PRINT(ctdl_nettmp_dir);
 264         DBG_PRINT(ctdl_netcfg_dir);
 265         DBG_PRINT(ctdl_bbsbase_dir);
 266         DBG_PRINT(ctdl_sbin_dir);
 267         DBG_PRINT(ctdl_bin_dir);
 268         DBG_PRINT(ctdl_utilbin_dir);
 269         DBG_PRINT(file_citadel_config);
 270         DBG_PRINT(file_lmtp_socket);
 271         DBG_PRINT(file_lmtp_unfiltered_socket);
 272         DBG_PRINT(file_arcq);
 273         DBG_PRINT(file_citadel_socket);
 274         DBG_PRINT(file_mail_aliases);
 275         DBG_PRINT(file_pid_file);
 276         DBG_PRINT(file_pid_paniclog);
 277         DBG_PRINT(file_crpt_file_key);
 278         DBG_PRINT(file_crpt_file_csr);
 279         DBG_PRINT(file_crpt_file_cer);
 280         DBG_PRINT(file_chkpwd);
 281         DBG_PRINT(file_guesstimezone);
 282 }
 283
 284
 285 /*
 286  * Generate an associated file name for a room
 287  */
 288 size_t assoc_file_name(char *buf, size_t n, struct ctdlroom *qrbuf, const char *prefix) {
 289         return snprintf(buf, n, "%s%ld", prefix, qrbuf->QRnumber);
 290 }
 291
 292
 293 void remove_digest_file(struct ctdlroom *room) {
 294         char buf[PATH_MAX];
 295
 296         snprintf(buf, PATH_MAX, "%s/%ld.eml", ctdl_netdigest_dir, room->QRnumber);
 297         StripSlashes(buf, 0);
 298         unlink(buf);
 299 }
 300
 301
 302 FILE *create_digest_file(struct ctdlroom *room, int forceCreate) {
 303         struct stat stbuf;
 304         char fn[PATH_MAX];
 305         int exists;
 306         FILE *fp;
 307
 308         snprintf(fn, PATH_MAX, "%s/%ld.eml", ctdl_netdigest_dir, room->QRnumber);
 309         StripSlashes(fn, 0);
 310
 311         exists = stat(fn, &stbuf);
 312         if (!forceCreate && (exists == -1))
 313                 return NULL;
 314
 315         fp = fopen(fn, "w+");
 316         if (fp == NULL) {
 317                 syslog(LOG_ERR, "failed to create digest file %s: %s", fn, strerror(errno));
 318         }
 319         return fp;
 320 }
 321
 322
 323 int create_dir(char *which, long ACCESS, long UID, long GID) {
 324         int rv;
 325         rv = mkdir(which, ACCESS);
 326         if ((rv == -1) && (errno != EEXIST)) {
 327                 syslog(LOG_ERR,
 328                        "failed to create directory %s: %s",
 329                        which,
 330                        strerror(errno));
 331                 return rv;
 332         }
 333         rv = chmod(which, ACCESS);
 334         if (rv == -1) {
 335                 syslog(LOG_ERR,
 336                        "failed to set permissions for directory %s: %s",
 337                        which,
 338                        strerror(errno));
 339                 return rv;
 340         }
 341         rv = chown(which, UID, GID);
 342         if (rv == -1) {
 343                 syslog(LOG_ERR,
 344                        "failed to set owner for directory %s: %s",
 345                        which,
 346                        strerror(errno));
 347                 return rv;
 348         }
 349         return rv;
 350 }
 351
 352
 353 int create_run_directories(long UID, long GID) {
 354         int rv = 0;
 355         rv += create_dir(ctdl_message_dir   , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 356         rv += create_dir(ctdl_file_dir      , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 357         rv += create_dir(ctdl_spool_dir     , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 358         rv += create_dir(ctdl_netdigest_dir , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 359         rv += create_dir(ctdl_nettmp_dir    , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 360         rv += create_dir(ctdl_key_dir       , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 361         rv += create_dir(ctdl_run_dir       , S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH, UID, GID);
 362         return rv;
 363 }