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