citadel/utillib/citadel_dirs.c

   1 /*
   2  * citadel_dirs.c : calculate pathnames for various files used in the Citadel system
   3  *
   4  * Copyright (c) 1987-2018 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_netdigest_dir[PATH_MAX]="network/digest";
  46 char ctdl_nettmp_dir[PATH_MAX]="network/spooltmp";
  47 char ctdl_netcfg_dir[PATH_MAX]="netconfigs";
  48 char ctdl_utilbin_dir[PATH_MAX]="";
  49 char ctdl_sbin_dir[PATH_MAX]="";
  50 char ctdl_bin_dir[PATH_MAX]="";
  51
  52 /* some of our files, that are needed in several places */
  53 char file_citadel_control[PATH_MAX]="";
  54 char file_citadel_config[PATH_MAX]="";
  55 char file_citadel_urlshorteners[PATH_MAX]="";
  56 char file_lmtp_socket[PATH_MAX]="";
  57 char file_lmtp_unfiltered_socket[PATH_MAX]="";
  58 char file_arcq[PATH_MAX]="";
  59 char file_citadel_socket[PATH_MAX]="";
  60 char file_citadel_admin_socket[PATH_MAX]="";
  61 char file_mail_aliases[PATH_MAX]="";
  62 char file_pid_file[PATH_MAX]="";
  63 char file_pid_paniclog[PATH_MAX]="";
  64 char file_crpt_file_key[PATH_MAX]="";
  65 char file_crpt_file_csr[PATH_MAX]="";
  66 char file_crpt_file_cer[PATH_MAX]="";
  67 char file_chkpwd[PATH_MAX]="";
  68 char file_base64[PATH_MAX]="";
  69 char file_guesstimezone[PATH_MAX]="";
  70
  71
  72
  73
  74
  75 #define COMPUTE_DIRECTORY(SUBDIR) memcpy(dirbuffer,SUBDIR, sizeof dirbuffer);\
  76         snprintf(SUBDIR,sizeof SUBDIR,  "%s%s%s%s%s%s%s", \
  77                          (home&!relh)?ctdl_home_directory:basedir, \
  78              ((basedir!=ctdldir)&(home&!relh))?basedir:"/", \
  79              ((basedir!=ctdldir)&(home&!relh))?"/":"", \
  80                          relhome, \
  81              (relhome[0]!='\0')?"/":"",\
  82                          dirbuffer,\
  83                          (dirbuffer[0]!='\0')?"/":"");
  84
  85 #define DBG_PRINT(A) if (dbg==1) fprintf (stderr,"%s : %s \n", #A, A)
  86
  87
  88 void calc_dirs_n_files(int relh, int home, const char *relhome, char  *ctdldir, int dbg)
  89 {
  90         const char* basedir = "";
  91         char dirbuffer[PATH_MAX] = "";
  92
  93         /*
  94          * Ok, we keep our binaries either in the citadel base dir,
  95          * or in /usr/sbin / /usr/bin
  96          */
  97         StripSlashes(ctdldir, 1);
  98 #ifdef HAVE_ETC_DIR
  99         snprintf(ctdl_sbin_dir, sizeof ctdl_sbin_dir, "/usr/sbin/");
 100         snprintf(ctdl_bin_dir, sizeof ctdl_bin_dir, "/usr/bin/");
 101 #else
 102         snprintf(ctdl_sbin_dir, sizeof ctdl_sbin_dir, ctdldir);
 103         snprintf(ctdl_bin_dir, sizeof ctdl_bin_dir, ctdldir);
 104 #endif
 105         StripSlashes(ctdl_sbin_dir, 1);
 106         StripSlashes(ctdl_bin_dir, 1);
 107
 108 #ifndef HAVE_AUTO_ETC_DIR
 109         basedir=ctdldir;
 110 #else
 111         basedir=AUTO_ETC_DIR;
 112 #endif
 113         COMPUTE_DIRECTORY(ctdl_autoetc_dir);
 114         StripSlashes(ctdl_autoetc_dir, 1);
 115
 116 #ifndef HAVE_ETC_DIR
 117         basedir=ctdldir;
 118 #else
 119         basedir=ETC_DIR;
 120 #endif
 121         COMPUTE_DIRECTORY(ctdl_netcfg_dir);
 122         COMPUTE_DIRECTORY(ctdl_etc_dir);
 123         StripSlashes(ctdl_netcfg_dir, 1);
 124         StripSlashes(ctdl_etc_dir, 1);
 125
 126 #ifndef HAVE_UTILBIN_DIR
 127         basedir=ctdldir;
 128 #else
 129         basedir=UTILBIN_DIR;
 130 #endif
 131         COMPUTE_DIRECTORY(ctdl_utilbin_dir);
 132         StripSlashes(ctdl_utilbin_dir, 1);
 133
 134 #ifndef HAVE_RUN_DIR
 135         basedir=ctdldir;
 136 #else
 137         basedir=RUN_DIR;
 138 #endif
 139         COMPUTE_DIRECTORY(ctdl_run_dir);
 140         StripSlashes(ctdl_run_dir, 1);
 141
 142 #ifndef HAVE_STATICDATA_DIR
 143         basedir=ctdldir;
 144 #else
 145         basedir=STATICDATA_DIR;
 146 #endif
 147         COMPUTE_DIRECTORY(ctdl_message_dir);
 148         StripSlashes(ctdl_message_dir, 1);
 149
 150 #ifndef HAVE_DATA_DIR
 151         basedir=ctdldir;
 152 #else
 153         basedir=DATA_DIR;
 154 #endif
 155         COMPUTE_DIRECTORY(ctdl_bio_dir);
 156         COMPUTE_DIRECTORY(ctdl_data_dir);
 157         COMPUTE_DIRECTORY(ctdl_file_dir);
 158         COMPUTE_DIRECTORY(ctdl_image_dir);
 159         COMPUTE_DIRECTORY(ctdl_info_dir);
 160         COMPUTE_DIRECTORY(ctdl_usrpic_dir);
 161         COMPUTE_DIRECTORY(ctdl_bbsbase_dir);
 162
 163         StripSlashes(ctdl_bio_dir, 1);
 164         StripSlashes(ctdl_data_dir, 1);
 165         StripSlashes(ctdl_file_dir, 1);
 166         StripSlashes(ctdl_image_dir, 1);
 167         StripSlashes(ctdl_info_dir, 1);
 168         StripSlashes(ctdl_usrpic_dir, 1);
 169         StripSlashes(ctdl_bbsbase_dir, 1);
 170
 171 #ifndef HAVE_SPOOL_DIR
 172         basedir=ctdldir;
 173 #else
 174         basedir=SPOOL_DIR;
 175 #endif
 176         COMPUTE_DIRECTORY(ctdl_spool_dir);
 177         COMPUTE_DIRECTORY(ctdl_netout_dir);
 178         COMPUTE_DIRECTORY(ctdl_netdigest_dir);
 179         COMPUTE_DIRECTORY(ctdl_nettmp_dir);
 180
 181         StripSlashes(ctdl_spool_dir, 1);
 182         StripSlashes(ctdl_netout_dir, 1);
 183         StripSlashes(ctdl_netdigest_dir, 1);
 184         StripSlashes(ctdl_nettmp_dir, 1);
 185
 186         /* ok, now we know the dirs, calc some commonly used files */
 187
 188         snprintf(file_arcq,
 189                          sizeof file_arcq,
 190                          "%srefcount_adjustments.dat",
 191                          ctdl_autoetc_dir);
 192         StripSlashes(file_arcq, 0);
 193         snprintf(file_citadel_control,
 194                          sizeof file_citadel_control,
 195                          "%scitadel.control",
 196                          ctdl_autoetc_dir
 197                          );
 198         StripSlashes(file_citadel_control, 0);
 199         snprintf(file_citadel_config,
 200                          sizeof file_citadel_config,
 201                          "%scitadel.config",
 202                          ctdl_autoetc_dir);
 203         StripSlashes(file_citadel_config, 0);
 204         snprintf(file_citadel_urlshorteners,
 205                          sizeof file_citadel_urlshorteners,
 206                          "%scitadel_urlshorteners.rc",
 207                          ctdl_etc_dir);
 208         StripSlashes(file_citadel_urlshorteners, 0);
 209         snprintf(file_lmtp_socket,
 210                          sizeof file_lmtp_socket,
 211                          "%slmtp.socket",
 212                          ctdl_run_dir);
 213         StripSlashes(file_lmtp_socket, 0);
 214         snprintf(file_lmtp_unfiltered_socket,
 215                          sizeof file_lmtp_socket,
 216                          "%slmtp-unfiltered.socket",
 217                          ctdl_run_dir);
 218         StripSlashes(file_lmtp_unfiltered_socket, 0);
 219         snprintf(file_citadel_socket,
 220                          sizeof file_citadel_socket,
 221                                 "%scitadel.socket",
 222                          ctdl_run_dir);
 223         StripSlashes(file_citadel_socket, 0);
 224         snprintf(file_citadel_admin_socket,
 225                          sizeof file_citadel_admin_socket,
 226                                 "%scitadel-admin.socket",
 227                          ctdl_run_dir);
 228         StripSlashes(file_citadel_admin_socket, 0);
 229         snprintf(file_pid_file,
 230                  sizeof file_pid_file,
 231                  "%scitadel.pid",
 232                  ctdl_run_dir);
 233         StripSlashes(file_pid_file, 0);
 234         snprintf(file_pid_paniclog,
 235                  sizeof file_pid_paniclog,
 236                  "%spanic.log",
 237                  ctdl_home_directory);
 238         StripSlashes(file_pid_paniclog, 0);
 239         snprintf(file_crpt_file_key,
 240                  sizeof file_crpt_file_key,
 241                  "%s/citadel.key",
 242                  ctdl_key_dir);
 243         StripSlashes(file_crpt_file_key, 0);
 244         snprintf(file_crpt_file_csr,
 245                  sizeof file_crpt_file_csr,
 246                  "%s/citadel.csr",
 247                  ctdl_key_dir);
 248         StripSlashes(file_crpt_file_csr, 0);
 249         snprintf(file_crpt_file_cer,
 250                  sizeof file_crpt_file_cer,
 251                  "%s/citadel.cer",
 252                  ctdl_key_dir);
 253         StripSlashes(file_crpt_file_cer, 0);
 254         snprintf(file_chkpwd,
 255                  sizeof file_chkpwd,
 256                  "%schkpwd",
 257                  ctdl_utilbin_dir);
 258         StripSlashes(file_chkpwd, 0);
 259         snprintf(file_base64,
 260                  sizeof file_base64,
 261                  "%sbase64",
 262                  ctdl_utilbin_dir);
 263         StripSlashes(file_base64, 0);
 264         snprintf(file_guesstimezone,
 265                  sizeof file_guesstimezone,
 266                  "%sguesstimezone.sh",
 267                  ctdl_utilbin_dir);
 268
 269         /*
 270          * DIRTY HACK FOLLOWS! due to configs in the network dir in the
 271          * legacy installations, we need to calculate ifdeffed here.
 272          */
 273         snprintf(file_mail_aliases,
 274                  sizeof file_mail_aliases,
 275                  "%smail.aliases",
 276 #ifdef HAVE_ETC_DIR
 277                  ctdl_etc_dir
 278 #else
 279                  ctdl_spool_dir
 280 #endif
 281                 );
 282         StripSlashes(file_mail_aliases, 0);
 283
 284         DBG_PRINT(ctdl_bio_dir);
 285         DBG_PRINT(ctdl_data_dir);
 286         DBG_PRINT(ctdl_file_dir);
 287         DBG_PRINT(ctdl_image_dir);
 288         DBG_PRINT(ctdl_info_dir);
 289         DBG_PRINT(ctdl_key_dir);
 290         DBG_PRINT(ctdl_message_dir);
 291         DBG_PRINT(ctdl_usrpic_dir);
 292         DBG_PRINT(ctdl_etc_dir);
 293         DBG_PRINT(ctdl_run_dir);
 294         DBG_PRINT(ctdl_spool_dir);
 295         DBG_PRINT(ctdl_netout_dir);
 296         DBG_PRINT(ctdl_netdigest_dir);
 297         DBG_PRINT(ctdl_nettmp_dir);
 298         DBG_PRINT(ctdl_netcfg_dir);
 299         DBG_PRINT(ctdl_bbsbase_dir);
 300         DBG_PRINT(ctdl_sbin_dir);
 301         DBG_PRINT(ctdl_bin_dir);
 302         DBG_PRINT(ctdl_utilbin_dir);
 303         DBG_PRINT(file_citadel_control);
 304         DBG_PRINT(file_citadel_config);
 305         DBG_PRINT(file_lmtp_socket);
 306         DBG_PRINT(file_lmtp_unfiltered_socket);
 307         DBG_PRINT(file_arcq);
 308         DBG_PRINT(file_citadel_socket);
 309         DBG_PRINT(file_mail_aliases);
 310         DBG_PRINT(file_pid_file);
 311         DBG_PRINT(file_pid_paniclog);
 312         DBG_PRINT(file_crpt_file_key);
 313         DBG_PRINT(file_crpt_file_csr);
 314         DBG_PRINT(file_crpt_file_cer);
 315         DBG_PRINT(file_chkpwd);
 316         DBG_PRINT(file_base64);
 317         DBG_PRINT(file_guesstimezone);
 318 }
 319
 320
 321 /*
 322  * Generate an associated file name for a room
 323  */
 324 size_t assoc_file_name(char *buf, size_t n,
 325                      struct ctdlroom *qrbuf, const char *prefix)
 326 {
 327         return snprintf(buf, n, "%s%ld", prefix, qrbuf->QRnumber);
 328 }
 329
 330 void remove_digest_file(struct ctdlroom *room)
 331 {
 332         char buf[PATH_MAX];
 333
 334         snprintf(buf, PATH_MAX, "%s/%ld.eml",
 335                  ctdl_netdigest_dir,
 336                  room->QRnumber);
 337         StripSlashes(buf, 0);
 338         unlink(buf);
 339 }
 340
 341 FILE *create_digest_file(struct ctdlroom *room, int forceCreate)
 342 {
 343         struct stat stbuf;
 344         char fn[PATH_MAX];
 345         int exists;
 346         FILE *fp;
 347
 348         snprintf(fn, PATH_MAX, "%s/%ld.eml",
 349                  ctdl_netdigest_dir,
 350                  room->QRnumber);
 351         StripSlashes(fn, 0);
 352
 353         exists = stat(fn, &stbuf);
 354         if (!forceCreate && (exists == -1))
 355                 return NULL;
 356
 357         fp = fopen(fn, "w+");
 358         if (fp == NULL) {
 359                 syslog(LOG_EMERG,
 360                        "failed to create digest file %s: %s",
 361                        fn,
 362                        strerror(errno));
 363         }
 364         return fp;
 365 }
 366
 367
 368 int create_dir(char *which, long ACCESS, long UID, long GID)
 369 {
 370         int rv;
 371         rv = mkdir(which, ACCESS);
 372         if ((rv == -1) && (errno != EEXIST)) {
 373                 syslog(LOG_EMERG,
 374                        "failed to create directory %s: %s",
 375                        which,
 376                        strerror(errno));
 377                 return rv;
 378         }
 379         rv = chmod(which, ACCESS);
 380         if (rv == -1) {
 381                 syslog(LOG_EMERG,
 382                        "failed to set permissions for directory %s: %s",
 383                        which,
 384                        strerror(errno));
 385                 return rv;
 386         }
 387         rv = chown(which, UID, GID);
 388         if (rv == -1) {
 389                 syslog(LOG_EMERG,
 390                        "failed to set owner for directory %s: %s",
 391                        which,
 392                        strerror(errno));
 393                 return rv;
 394         }
 395         return rv;
 396 }
 397
 398 int create_run_directories(long UID, long GID)
 399 {
 400         int rv = 0;
 401         rv += create_dir(ctdl_message_dir   , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 402         rv += create_dir(ctdl_file_dir      , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 403         rv += create_dir(ctdl_spool_dir     , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 404         rv += create_dir(ctdl_netout_dir    , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 405         rv += create_dir(ctdl_netdigest_dir , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 406         rv += create_dir(ctdl_nettmp_dir    , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 407         rv += create_dir(ctdl_key_dir       , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 408         rv += create_dir(ctdl_run_dir       , S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH, UID, GID);
 409         return rv;
 410 }