citadel/utillib/citadel_dirs.c

   1 /*
   2  * citadel_dirs.c : calculate pathnames for various files used in the Citadel system
   3  *
   4  * Copyright (c) 1987-2017 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_bio_dir[PATH_MAX]="bio";
  30 char ctdl_data_dir[PATH_MAX]="data";
  31 char ctdl_file_dir[PATH_MAX]="files";
  32 char ctdl_shared_dir[PATH_MAX]="";
  33 char ctdl_image_dir[PATH_MAX]="images";
  34 char ctdl_info_dir[PATH_MAX]="info";
  35 char ctdl_key_dir[PATH_MAX]=SSL_DIR;
  36 char ctdl_message_dir[PATH_MAX]="messages";
  37 char ctdl_usrpic_dir[PATH_MAX]="userpics";
  38 char ctdl_bbsbase_dir[PATH_MAX]="";
  39 char ctdl_etc_dir[PATH_MAX]="";
  40 char ctdl_autoetc_dir[PATH_MAX]="";
  41 /* attention! this may be non volatile on some oses */
  42 char ctdl_run_dir[PATH_MAX]="";
  43 char ctdl_spool_dir[PATH_MAX]="network";
  44 char ctdl_netout_dir[PATH_MAX]="network/spoolout";
  45 char ctdl_netin_dir[PATH_MAX]="network/spoolin";
  46 char ctdl_netdigest_dir[PATH_MAX]="network/digest";
  47 char ctdl_nettmp_dir[PATH_MAX]="network/spooltmp";
  48 char ctdl_netcfg_dir[PATH_MAX]="netconfigs";
  49 char ctdl_utilbin_dir[PATH_MAX]="";
  50 char ctdl_sbin_dir[PATH_MAX]="";
  51 char ctdl_bin_dir[PATH_MAX]="";
  52
  53 /* some of our files, that are needed in several places */
  54 char file_citadel_control[PATH_MAX]="";
  55 char file_citadel_config[PATH_MAX]="";
  56 char file_citadel_urlshorteners[PATH_MAX]="";
  57 char file_lmtp_socket[PATH_MAX]="";
  58 char file_lmtp_unfiltered_socket[PATH_MAX]="";
  59 char file_arcq[PATH_MAX]="";
  60 char file_citadel_socket[PATH_MAX]="";
  61 char file_citadel_admin_socket[PATH_MAX]="";
  62 char file_mail_aliases[PATH_MAX]="";
  63 char file_pid_file[PATH_MAX]="";
  64 char file_pid_paniclog[PATH_MAX]="";
  65 char file_crpt_file_key[PATH_MAX]="";
  66 char file_crpt_file_csr[PATH_MAX]="";
  67 char file_crpt_file_cer[PATH_MAX]="";
  68 char file_chkpwd[PATH_MAX]="";
  69 char file_base64[PATH_MAX]="";
  70 char file_guesstimezone[PATH_MAX]="";
  71
  72
  73
  74
  75
  76 #define COMPUTE_DIRECTORY(SUBDIR) memcpy(dirbuffer,SUBDIR, sizeof dirbuffer);\
  77         snprintf(SUBDIR,sizeof SUBDIR,  "%s%s%s%s%s%s%s", \
  78                          (home&!relh)?ctdl_home_directory:basedir, \
  79              ((basedir!=ctdldir)&(home&!relh))?basedir:"/", \
  80              ((basedir!=ctdldir)&(home&!relh))?"/":"", \
  81                          relhome, \
  82              (relhome[0]!='\0')?"/":"",\
  83                          dirbuffer,\
  84                          (dirbuffer[0]!='\0')?"/":"");
  85
  86 #define DBG_PRINT(A) if (dbg==1) fprintf (stderr,"%s : %s \n", #A, A)
  87
  88
  89 void calc_dirs_n_files(int relh, int home, const char *relhome, char  *ctdldir, int dbg)
  90 {
  91         const char* basedir = "";
  92         char dirbuffer[PATH_MAX] = "";
  93
  94         /*
  95          * Ok, we keep our binaries either in the citadel base dir,
  96          * or in /usr/sbin / /usr/bin
  97          */
  98         StripSlashes(ctdldir, 1);
  99 #ifdef HAVE_ETC_DIR
 100         snprintf(ctdl_sbin_dir, sizeof ctdl_sbin_dir, "/usr/sbin/");
 101         snprintf(ctdl_bin_dir, sizeof ctdl_bin_dir, "/usr/bin/");
 102 #else
 103         snprintf(ctdl_sbin_dir, sizeof ctdl_sbin_dir, ctdldir);
 104         snprintf(ctdl_bin_dir, sizeof ctdl_bin_dir, ctdldir);
 105 #endif
 106         StripSlashes(ctdl_sbin_dir, 1);
 107         StripSlashes(ctdl_bin_dir, 1);
 108
 109 #ifndef HAVE_AUTO_ETC_DIR
 110         basedir=ctdldir;
 111 #else
 112         basedir=AUTO_ETC_DIR;
 113 #endif
 114         COMPUTE_DIRECTORY(ctdl_autoetc_dir);
 115         StripSlashes(ctdl_autoetc_dir, 1);
 116
 117 #ifndef HAVE_ETC_DIR
 118         basedir=ctdldir;
 119 #else
 120         basedir=ETC_DIR;
 121 #endif
 122         COMPUTE_DIRECTORY(ctdl_netcfg_dir);
 123         COMPUTE_DIRECTORY(ctdl_etc_dir);
 124         StripSlashes(ctdl_netcfg_dir, 1);
 125         StripSlashes(ctdl_etc_dir, 1);
 126
 127 #ifndef HAVE_UTILBIN_DIR
 128         basedir=ctdldir;
 129 #else
 130         basedir=UTILBIN_DIR;
 131 #endif
 132         COMPUTE_DIRECTORY(ctdl_utilbin_dir);
 133         StripSlashes(ctdl_utilbin_dir, 1);
 134
 135 #ifndef HAVE_RUN_DIR
 136         basedir=ctdldir;
 137 #else
 138         basedir=RUN_DIR;
 139 #endif
 140         COMPUTE_DIRECTORY(ctdl_run_dir);
 141         StripSlashes(ctdl_run_dir, 1);
 142
 143 #ifndef HAVE_STATICDATA_DIR
 144         basedir=ctdldir;
 145 #else
 146         basedir=STATICDATA_DIR;
 147 #endif
 148         COMPUTE_DIRECTORY(ctdl_message_dir);
 149         StripSlashes(ctdl_message_dir, 1);
 150
 151 #ifndef HAVE_DATA_DIR
 152         basedir=ctdldir;
 153 #else
 154         basedir=DATA_DIR;
 155 #endif
 156         COMPUTE_DIRECTORY(ctdl_bio_dir);
 157         COMPUTE_DIRECTORY(ctdl_data_dir);
 158         COMPUTE_DIRECTORY(ctdl_file_dir);
 159         COMPUTE_DIRECTORY(ctdl_image_dir);
 160         COMPUTE_DIRECTORY(ctdl_info_dir);
 161         COMPUTE_DIRECTORY(ctdl_usrpic_dir);
 162         COMPUTE_DIRECTORY(ctdl_bbsbase_dir);
 163
 164         StripSlashes(ctdl_bio_dir, 1);
 165         StripSlashes(ctdl_data_dir, 1);
 166         StripSlashes(ctdl_file_dir, 1);
 167         StripSlashes(ctdl_image_dir, 1);
 168         StripSlashes(ctdl_info_dir, 1);
 169         StripSlashes(ctdl_usrpic_dir, 1);
 170         StripSlashes(ctdl_bbsbase_dir, 1);
 171
 172 #ifndef HAVE_SPOOL_DIR
 173         basedir=ctdldir;
 174 #else
 175         basedir=SPOOL_DIR;
 176 #endif
 177         COMPUTE_DIRECTORY(ctdl_spool_dir);
 178         COMPUTE_DIRECTORY(ctdl_netout_dir);
 179         COMPUTE_DIRECTORY(ctdl_netin_dir);
 180         COMPUTE_DIRECTORY(ctdl_netdigest_dir);
 181         COMPUTE_DIRECTORY(ctdl_nettmp_dir);
 182
 183         StripSlashes(ctdl_spool_dir, 1);
 184         StripSlashes(ctdl_netout_dir, 1);
 185         StripSlashes(ctdl_netin_dir, 1);
 186         StripSlashes(ctdl_netdigest_dir, 1);
 187         StripSlashes(ctdl_nettmp_dir, 1);
 188
 189         /* ok, now we know the dirs, calc some commonly used files */
 190
 191         snprintf(file_arcq,
 192                          sizeof file_arcq,
 193                          "%srefcount_adjustments.dat",
 194                          ctdl_autoetc_dir);
 195         StripSlashes(file_arcq, 0);
 196         snprintf(file_citadel_control,
 197                          sizeof file_citadel_control,
 198                          "%scitadel.control",
 199                          ctdl_autoetc_dir
 200                          );
 201         StripSlashes(file_citadel_control, 0);
 202         snprintf(file_citadel_config,
 203                          sizeof file_citadel_config,
 204                          "%scitadel.config",
 205                          ctdl_autoetc_dir);
 206         StripSlashes(file_citadel_config, 0);
 207         snprintf(file_citadel_urlshorteners,
 208                          sizeof file_citadel_urlshorteners,
 209                          "%scitadel_urlshorteners.rc",
 210                          ctdl_etc_dir);
 211         StripSlashes(file_citadel_urlshorteners, 0);
 212         snprintf(file_lmtp_socket,
 213                          sizeof file_lmtp_socket,
 214                          "%slmtp.socket",
 215                          ctdl_run_dir);
 216         StripSlashes(file_lmtp_socket, 0);
 217         snprintf(file_lmtp_unfiltered_socket,
 218                          sizeof file_lmtp_socket,
 219                          "%slmtp-unfiltered.socket",
 220                          ctdl_run_dir);
 221         StripSlashes(file_lmtp_unfiltered_socket, 0);
 222         snprintf(file_citadel_socket,
 223                          sizeof file_citadel_socket,
 224                                 "%scitadel.socket",
 225                          ctdl_run_dir);
 226         StripSlashes(file_citadel_socket, 0);
 227         snprintf(file_citadel_admin_socket,
 228                          sizeof file_citadel_admin_socket,
 229                                 "%scitadel-admin.socket",
 230                          ctdl_run_dir);
 231         StripSlashes(file_citadel_admin_socket, 0);
 232         snprintf(file_pid_file,
 233                  sizeof file_pid_file,
 234                  "%scitadel.pid",
 235                  ctdl_run_dir);
 236         StripSlashes(file_pid_file, 0);
 237         snprintf(file_pid_paniclog,
 238                  sizeof file_pid_paniclog,
 239                  "%spanic.log",
 240                  ctdl_home_directory);
 241         StripSlashes(file_pid_paniclog, 0);
 242         snprintf(file_crpt_file_key,
 243                  sizeof file_crpt_file_key,
 244                  "%s/citadel.key",
 245                  ctdl_key_dir);
 246         StripSlashes(file_crpt_file_key, 0);
 247         snprintf(file_crpt_file_csr,
 248                  sizeof file_crpt_file_csr,
 249                  "%s/citadel.csr",
 250                  ctdl_key_dir);
 251         StripSlashes(file_crpt_file_csr, 0);
 252         snprintf(file_crpt_file_cer,
 253                  sizeof file_crpt_file_cer,
 254                  "%s/citadel.cer",
 255                  ctdl_key_dir);
 256         StripSlashes(file_crpt_file_cer, 0);
 257         snprintf(file_chkpwd,
 258                  sizeof file_chkpwd,
 259                  "%schkpwd",
 260                  ctdl_utilbin_dir);
 261         StripSlashes(file_chkpwd, 0);
 262         snprintf(file_base64,
 263                  sizeof file_base64,
 264                  "%sbase64",
 265                  ctdl_utilbin_dir);
 266         StripSlashes(file_base64, 0);
 267         snprintf(file_guesstimezone,
 268                  sizeof file_guesstimezone,
 269                  "%sguesstimezone.sh",
 270                  ctdl_utilbin_dir);
 271
 272         /*
 273          * DIRTY HACK FOLLOWS! due to configs in the network dir in the
 274          * legacy installations, we need to calculate ifdeffed here.
 275          */
 276         snprintf(file_mail_aliases,
 277                  sizeof file_mail_aliases,
 278                  "%smail.aliases",
 279 #ifdef HAVE_ETC_DIR
 280                  ctdl_etc_dir
 281 #else
 282                  ctdl_spool_dir
 283 #endif
 284                 );
 285         StripSlashes(file_mail_aliases, 0);
 286
 287         DBG_PRINT(ctdl_bio_dir);
 288         DBG_PRINT(ctdl_data_dir);
 289         DBG_PRINT(ctdl_file_dir);
 290         DBG_PRINT(ctdl_image_dir);
 291         DBG_PRINT(ctdl_info_dir);
 292         DBG_PRINT(ctdl_key_dir);
 293         DBG_PRINT(ctdl_message_dir);
 294         DBG_PRINT(ctdl_usrpic_dir);
 295         DBG_PRINT(ctdl_etc_dir);
 296         DBG_PRINT(ctdl_run_dir);
 297         DBG_PRINT(ctdl_spool_dir);
 298         DBG_PRINT(ctdl_netout_dir);
 299         DBG_PRINT(ctdl_netin_dir);
 300         DBG_PRINT(ctdl_netdigest_dir);
 301         DBG_PRINT(ctdl_nettmp_dir);
 302         DBG_PRINT(ctdl_netcfg_dir);
 303         DBG_PRINT(ctdl_bbsbase_dir);
 304         DBG_PRINT(ctdl_sbin_dir);
 305         DBG_PRINT(ctdl_bin_dir);
 306         DBG_PRINT(ctdl_utilbin_dir);
 307         DBG_PRINT(file_citadel_control);
 308         DBG_PRINT(file_citadel_config);
 309         DBG_PRINT(file_lmtp_socket);
 310         DBG_PRINT(file_lmtp_unfiltered_socket);
 311         DBG_PRINT(file_arcq);
 312         DBG_PRINT(file_citadel_socket);
 313         DBG_PRINT(file_mail_aliases);
 314         DBG_PRINT(file_pid_file);
 315         DBG_PRINT(file_pid_paniclog);
 316         DBG_PRINT(file_crpt_file_key);
 317         DBG_PRINT(file_crpt_file_csr);
 318         DBG_PRINT(file_crpt_file_cer);
 319         DBG_PRINT(file_chkpwd);
 320         DBG_PRINT(file_base64);
 321         DBG_PRINT(file_guesstimezone);
 322 }
 323
 324
 325 /*
 326  * Generate an associated file name for a room
 327  */
 328 size_t assoc_file_name(char *buf, size_t n,
 329                      struct ctdlroom *qrbuf, const char *prefix)
 330 {
 331         return snprintf(buf, n, "%s%ld", prefix, qrbuf->QRnumber);
 332 }
 333
 334 void remove_digest_file(struct ctdlroom *room)
 335 {
 336         char buf[PATH_MAX];
 337
 338         snprintf(buf, PATH_MAX, "%s/%ld.eml",
 339                  ctdl_netdigest_dir,
 340                  room->QRnumber);
 341         StripSlashes(buf, 0);
 342         unlink(buf);
 343 }
 344
 345 FILE *create_digest_file(struct ctdlroom *room, int forceCreate)
 346 {
 347         struct stat stbuf;
 348         char fn[PATH_MAX];
 349         int exists;
 350         FILE *fp;
 351
 352         snprintf(fn, PATH_MAX, "%s/%ld.eml",
 353                  ctdl_netdigest_dir,
 354                  room->QRnumber);
 355         StripSlashes(fn, 0);
 356
 357         exists = stat(fn, &stbuf);
 358         if (!forceCreate && (exists == -1))
 359                 return NULL;
 360
 361         fp = fopen(fn, "w+");
 362         if (fp == NULL) {
 363                 syslog(LOG_EMERG,
 364                        "failed to create digest file %s: %s",
 365                        fn,
 366                        strerror(errno));
 367         }
 368         return fp;
 369 }
 370
 371
 372 int create_dir(char *which, long ACCESS, long UID, long GID)
 373 {
 374         int rv;
 375         rv = mkdir(which, ACCESS);
 376         if ((rv == -1) && (errno != EEXIST)) {
 377                 syslog(LOG_EMERG,
 378                        "failed to create directory %s: %s",
 379                        which,
 380                        strerror(errno));
 381                 return rv;
 382         }
 383         rv = chmod(which, ACCESS);
 384         if (rv == -1) {
 385                 syslog(LOG_EMERG,
 386                        "failed to set permissions for directory %s: %s",
 387                        which,
 388                        strerror(errno));
 389                 return rv;
 390         }
 391         rv = chown(which, UID, GID);
 392         if (rv == -1) {
 393                 syslog(LOG_EMERG,
 394                        "failed to set owner for directory %s: %s",
 395                        which,
 396                        strerror(errno));
 397                 return rv;
 398         }
 399         return rv;
 400 }
 401
 402 int create_run_directories(long UID, long GID)
 403 {
 404         int rv = 0;
 405         rv += create_dir(ctdl_message_dir   , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 406         rv += create_dir(ctdl_file_dir      , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 407         rv += create_dir(ctdl_spool_dir     , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 408         rv += create_dir(ctdl_netout_dir    , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 409         rv += create_dir(ctdl_netin_dir     , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 410         rv += create_dir(ctdl_netdigest_dir , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 411         rv += create_dir(ctdl_nettmp_dir    , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 412         rv += create_dir(ctdl_key_dir       , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 413         rv += create_dir(ctdl_run_dir       , S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH, UID, GID);
 414         return rv;
 415 }