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