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_base64[PATH_MAX]="";
  68 char file_guesstimezone[PATH_MAX]="";
  69
  70
  71
  72
  73
  74 #define COMPUTE_DIRECTORY(SUBDIR) memcpy(dirbuffer,SUBDIR, sizeof dirbuffer);\
  75         snprintf(SUBDIR,sizeof SUBDIR,  "%s%s%s%s%s%s%s", \
  76                          (home&!relh)?ctdl_home_directory:basedir, \
  77              ((basedir!=ctdldir)&(home&!relh))?basedir:"/", \
  78              ((basedir!=ctdldir)&(home&!relh))?"/":"", \
  79                          relhome, \
  80              (relhome[0]!='\0')?"/":"",\
  81                          dirbuffer,\
  82                          (dirbuffer[0]!='\0')?"/":"");
  83
  84 #define DBG_PRINT(A) if (dbg==1) fprintf (stderr,"%s : %s \n", #A, A)
  85
  86
  87 void calc_dirs_n_files(int relh, int home, const char *relhome, char  *ctdldir, int dbg)
  88 {
  89         const char* basedir = "";
  90         char dirbuffer[PATH_MAX] = "";
  91
  92         /*
  93          * Ok, we keep our binaries either in the citadel base dir,
  94          * or in /usr/sbin / /usr/bin
  95          */
  96         StripSlashes(ctdldir, 1);
  97 #ifdef HAVE_ETC_DIR
  98         snprintf(ctdl_sbin_dir, sizeof ctdl_sbin_dir, "/usr/sbin/");
  99         snprintf(ctdl_bin_dir, sizeof ctdl_bin_dir, "/usr/bin/");
 100 #else
 101         snprintf(ctdl_sbin_dir, sizeof ctdl_sbin_dir, ctdldir);
 102         snprintf(ctdl_bin_dir, sizeof ctdl_bin_dir, ctdldir);
 103 #endif
 104         StripSlashes(ctdl_sbin_dir, 1);
 105         StripSlashes(ctdl_bin_dir, 1);
 106
 107 #ifndef HAVE_AUTO_ETC_DIR
 108         basedir=ctdldir;
 109 #else
 110         basedir=AUTO_ETC_DIR;
 111 #endif
 112         COMPUTE_DIRECTORY(ctdl_autoetc_dir);
 113         StripSlashes(ctdl_autoetc_dir, 1);
 114
 115 #ifndef HAVE_ETC_DIR
 116         basedir=ctdldir;
 117 #else
 118         basedir=ETC_DIR;
 119 #endif
 120         COMPUTE_DIRECTORY(ctdl_netcfg_dir);
 121         COMPUTE_DIRECTORY(ctdl_etc_dir);
 122         StripSlashes(ctdl_netcfg_dir, 1);
 123         StripSlashes(ctdl_etc_dir, 1);
 124
 125 #ifndef HAVE_UTILBIN_DIR
 126         basedir=ctdldir;
 127 #else
 128         basedir=UTILBIN_DIR;
 129 #endif
 130         COMPUTE_DIRECTORY(ctdl_utilbin_dir);
 131         StripSlashes(ctdl_utilbin_dir, 1);
 132
 133 #ifndef HAVE_RUN_DIR
 134         basedir=ctdldir;
 135 #else
 136         basedir=RUN_DIR;
 137 #endif
 138         COMPUTE_DIRECTORY(ctdl_run_dir);
 139         StripSlashes(ctdl_run_dir, 1);
 140
 141 #ifndef HAVE_STATICDATA_DIR
 142         basedir=ctdldir;
 143 #else
 144         basedir=STATICDATA_DIR;
 145 #endif
 146         COMPUTE_DIRECTORY(ctdl_message_dir);
 147         StripSlashes(ctdl_message_dir, 1);
 148
 149 #ifndef HAVE_DATA_DIR
 150         basedir=ctdldir;
 151 #else
 152         basedir=DATA_DIR;
 153 #endif
 154         COMPUTE_DIRECTORY(ctdl_bio_dir);
 155         COMPUTE_DIRECTORY(ctdl_data_dir);
 156         COMPUTE_DIRECTORY(ctdl_file_dir);
 157         COMPUTE_DIRECTORY(ctdl_image_dir);
 158         COMPUTE_DIRECTORY(ctdl_info_dir);
 159         COMPUTE_DIRECTORY(ctdl_usrpic_dir);
 160         COMPUTE_DIRECTORY(ctdl_bbsbase_dir);
 161
 162         StripSlashes(ctdl_bio_dir, 1);
 163         StripSlashes(ctdl_data_dir, 1);
 164         StripSlashes(ctdl_file_dir, 1);
 165         StripSlashes(ctdl_image_dir, 1);
 166         StripSlashes(ctdl_info_dir, 1);
 167         StripSlashes(ctdl_usrpic_dir, 1);
 168         StripSlashes(ctdl_bbsbase_dir, 1);
 169
 170 #ifndef HAVE_SPOOL_DIR
 171         basedir=ctdldir;
 172 #else
 173         basedir=SPOOL_DIR;
 174 #endif
 175         COMPUTE_DIRECTORY(ctdl_spool_dir);
 176         COMPUTE_DIRECTORY(ctdl_netdigest_dir);
 177         COMPUTE_DIRECTORY(ctdl_nettmp_dir);
 178
 179         StripSlashes(ctdl_spool_dir, 1);
 180         StripSlashes(ctdl_netdigest_dir, 1);
 181         StripSlashes(ctdl_nettmp_dir, 1);
 182
 183         /* ok, now we know the dirs, calc some commonly used files */
 184
 185         snprintf(file_arcq,
 186                          sizeof file_arcq,
 187                          "%srefcount_adjustments.dat",
 188                          ctdl_autoetc_dir);
 189         StripSlashes(file_arcq, 0);
 190         snprintf(file_citadel_control,
 191                          sizeof file_citadel_control,
 192                          "%scitadel.control",
 193                          ctdl_autoetc_dir
 194                          );
 195         StripSlashes(file_citadel_control, 0);
 196         snprintf(file_citadel_config,
 197                          sizeof file_citadel_config,
 198                          "%scitadel.config",
 199                          ctdl_autoetc_dir);
 200         StripSlashes(file_citadel_config, 0);
 201         snprintf(file_citadel_urlshorteners,
 202                          sizeof file_citadel_urlshorteners,
 203                          "%scitadel_urlshorteners.rc",
 204                          ctdl_etc_dir);
 205         StripSlashes(file_citadel_urlshorteners, 0);
 206         snprintf(file_lmtp_socket,
 207                          sizeof file_lmtp_socket,
 208                          "%slmtp.socket",
 209                          ctdl_run_dir);
 210         StripSlashes(file_lmtp_socket, 0);
 211         snprintf(file_lmtp_unfiltered_socket,
 212                          sizeof file_lmtp_socket,
 213                          "%slmtp-unfiltered.socket",
 214                          ctdl_run_dir);
 215         StripSlashes(file_lmtp_unfiltered_socket, 0);
 216         snprintf(file_citadel_socket,
 217                          sizeof file_citadel_socket,
 218                                 "%scitadel.socket",
 219                          ctdl_run_dir);
 220         StripSlashes(file_citadel_socket, 0);
 221         snprintf(file_citadel_admin_socket,
 222                          sizeof file_citadel_admin_socket,
 223                                 "%scitadel-admin.socket",
 224                          ctdl_run_dir);
 225         StripSlashes(file_citadel_admin_socket, 0);
 226         snprintf(file_pid_file,
 227                  sizeof file_pid_file,
 228                  "%scitadel.pid",
 229                  ctdl_run_dir);
 230         StripSlashes(file_pid_file, 0);
 231         snprintf(file_pid_paniclog,
 232                  sizeof file_pid_paniclog,
 233                  "%spanic.log",
 234                  ctdl_home_directory);
 235         StripSlashes(file_pid_paniclog, 0);
 236         snprintf(file_crpt_file_key,
 237                  sizeof file_crpt_file_key,
 238                  "%s/citadel.key",
 239                  ctdl_key_dir);
 240         StripSlashes(file_crpt_file_key, 0);
 241         snprintf(file_crpt_file_csr,
 242                  sizeof file_crpt_file_csr,
 243                  "%s/citadel.csr",
 244                  ctdl_key_dir);
 245         StripSlashes(file_crpt_file_csr, 0);
 246         snprintf(file_crpt_file_cer,
 247                  sizeof file_crpt_file_cer,
 248                  "%s/citadel.cer",
 249                  ctdl_key_dir);
 250         StripSlashes(file_crpt_file_cer, 0);
 251         snprintf(file_chkpwd,
 252                  sizeof file_chkpwd,
 253                  "%schkpwd",
 254                  ctdl_utilbin_dir);
 255         StripSlashes(file_chkpwd, 0);
 256         snprintf(file_base64,
 257                  sizeof file_base64,
 258                  "%sbase64",
 259                  ctdl_utilbin_dir);
 260         StripSlashes(file_base64, 0);
 261         snprintf(file_guesstimezone,
 262                  sizeof file_guesstimezone,
 263                  "%sguesstimezone.sh",
 264                  ctdl_utilbin_dir);
 265
 266         /*
 267          * DIRTY HACK FOLLOWS! due to configs in the network dir in the
 268          * legacy installations, we need to calculate ifdeffed here.
 269          */
 270         snprintf(file_mail_aliases,
 271                  sizeof file_mail_aliases,
 272                  "%smail.aliases",
 273 #ifdef HAVE_ETC_DIR
 274                  ctdl_etc_dir
 275 #else
 276                  ctdl_spool_dir
 277 #endif
 278                 );
 279         StripSlashes(file_mail_aliases, 0);
 280
 281         DBG_PRINT(ctdl_bio_dir);
 282         DBG_PRINT(ctdl_data_dir);
 283         DBG_PRINT(ctdl_file_dir);
 284         DBG_PRINT(ctdl_image_dir);
 285         DBG_PRINT(ctdl_info_dir);
 286         DBG_PRINT(ctdl_key_dir);
 287         DBG_PRINT(ctdl_message_dir);
 288         DBG_PRINT(ctdl_usrpic_dir);
 289         DBG_PRINT(ctdl_etc_dir);
 290         DBG_PRINT(ctdl_run_dir);
 291         DBG_PRINT(ctdl_spool_dir);
 292         DBG_PRINT(ctdl_netdigest_dir);
 293         DBG_PRINT(ctdl_nettmp_dir);
 294         DBG_PRINT(ctdl_netcfg_dir);
 295         DBG_PRINT(ctdl_bbsbase_dir);
 296         DBG_PRINT(ctdl_sbin_dir);
 297         DBG_PRINT(ctdl_bin_dir);
 298         DBG_PRINT(ctdl_utilbin_dir);
 299         DBG_PRINT(file_citadel_control);
 300         DBG_PRINT(file_citadel_config);
 301         DBG_PRINT(file_lmtp_socket);
 302         DBG_PRINT(file_lmtp_unfiltered_socket);
 303         DBG_PRINT(file_arcq);
 304         DBG_PRINT(file_citadel_socket);
 305         DBG_PRINT(file_mail_aliases);
 306         DBG_PRINT(file_pid_file);
 307         DBG_PRINT(file_pid_paniclog);
 308         DBG_PRINT(file_crpt_file_key);
 309         DBG_PRINT(file_crpt_file_csr);
 310         DBG_PRINT(file_crpt_file_cer);
 311         DBG_PRINT(file_chkpwd);
 312         DBG_PRINT(file_base64);
 313         DBG_PRINT(file_guesstimezone);
 314 }
 315
 316
 317 /*
 318  * Generate an associated file name for a room
 319  */
 320 size_t assoc_file_name(char *buf, size_t n,
 321                      struct ctdlroom *qrbuf, const char *prefix)
 322 {
 323         return snprintf(buf, n, "%s%ld", prefix, qrbuf->QRnumber);
 324 }
 325
 326 void remove_digest_file(struct ctdlroom *room)
 327 {
 328         char buf[PATH_MAX];
 329
 330         snprintf(buf, PATH_MAX, "%s/%ld.eml",
 331                  ctdl_netdigest_dir,
 332                  room->QRnumber);
 333         StripSlashes(buf, 0);
 334         unlink(buf);
 335 }
 336
 337 FILE *create_digest_file(struct ctdlroom *room, int forceCreate)
 338 {
 339         struct stat stbuf;
 340         char fn[PATH_MAX];
 341         int exists;
 342         FILE *fp;
 343
 344         snprintf(fn, PATH_MAX, "%s/%ld.eml",
 345                  ctdl_netdigest_dir,
 346                  room->QRnumber);
 347         StripSlashes(fn, 0);
 348
 349         exists = stat(fn, &stbuf);
 350         if (!forceCreate && (exists == -1))
 351                 return NULL;
 352
 353         fp = fopen(fn, "w+");
 354         if (fp == NULL) {
 355                 syslog(LOG_EMERG,
 356                        "failed to create digest file %s: %s",
 357                        fn,
 358                        strerror(errno));
 359         }
 360         return fp;
 361 }
 362
 363
 364 int create_dir(char *which, long ACCESS, long UID, long GID)
 365 {
 366         int rv;
 367         rv = mkdir(which, ACCESS);
 368         if ((rv == -1) && (errno != EEXIST)) {
 369                 syslog(LOG_EMERG,
 370                        "failed to create directory %s: %s",
 371                        which,
 372                        strerror(errno));
 373                 return rv;
 374         }
 375         rv = chmod(which, ACCESS);
 376         if (rv == -1) {
 377                 syslog(LOG_EMERG,
 378                        "failed to set permissions for directory %s: %s",
 379                        which,
 380                        strerror(errno));
 381                 return rv;
 382         }
 383         rv = chown(which, UID, GID);
 384         if (rv == -1) {
 385                 syslog(LOG_EMERG,
 386                        "failed to set owner for directory %s: %s",
 387                        which,
 388                        strerror(errno));
 389                 return rv;
 390         }
 391         return rv;
 392 }
 393
 394 int create_run_directories(long UID, long GID)
 395 {
 396         int rv = 0;
 397         rv += create_dir(ctdl_message_dir   , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 398         rv += create_dir(ctdl_file_dir      , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 399         rv += create_dir(ctdl_spool_dir     , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 400         rv += create_dir(ctdl_netdigest_dir , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 401         rv += create_dir(ctdl_nettmp_dir    , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 402         rv += create_dir(ctdl_key_dir       , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 403         rv += create_dir(ctdl_run_dir       , S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH, UID, GID);
 404         return rv;
 405 }