]> the.earth.li Git - onak.git/blobdiff - onak-conf.c
Remove --with-systemd option to dh
[onak.git] / onak-conf.c
index 038ad55a254d96f7d8ddfb5fea35336c28e3ff12..6d67a74610c81b06f1677badca51a10e1f1a7378 100644 (file)
  * more details.
  *
  * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 51
- * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * this program.  If not, see <https://www.gnu.org/licenses/>.
  */
-
-#include "config.h"
-
 #include <ctype.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <strings.h>
+
+#include "build-config.h"
 
+#include "cleankey.h"
 #include "ll.h"
 #include "log.h"
 #include "onak-conf.h"
 
+#ifdef DBINIT
 extern struct onak_dbctx *DBINIT(struct onak_db_config *dbcfg, bool readonly);
+#endif
 
 /*
  *     config - Runtime configuration for onak.
@@ -50,14 +52,31 @@ struct onak_config config = {
        .backends = NULL,
        .backends_dir = NULL,
 
+#ifdef DBINIT
        .dbinit = DBINIT,
+#else
+       .dbinit = NULL,
+#endif
 
-       .check_sighash = true,
+       .clean_policies = ONAK_CLEAN_DROP_V3_KEYS | ONAK_CLEAN_CHECK_SIGHASH,
 
        .bin_dir = NULL,
        .mail_dir = NULL,
 };
 
+struct onak_db_config *find_db_backend_config(struct ll *backends, char *name)
+{
+       struct ll *cur;
+
+       cur = backends;
+       while (cur != NULL && strcmp(name,
+                       ((struct onak_db_config *) cur->object)->name)) {
+               cur = cur->next;
+       }
+
+       return (cur != NULL) ? (struct onak_db_config *) cur->object : NULL;
+}
+
 bool parsebool(char *str, bool fallback)
 {
        if (!strcasecmp(str, "false") || !strcasecmp(str, "no") ||
@@ -76,7 +95,10 @@ bool parsebool(char *str, bool fallback)
        }
 }
 
-static bool parseconfigline(char *line)
+/*
+ * Parse an old pksd style config line, as used in onak 0.4.6 and earlier.
+ */
+static bool parseoldconfigline(char *line)
 {
        if (line[0] == '#' || line[0] == 0) {
                /*
@@ -153,8 +175,186 @@ static bool parseconfigline(char *line)
        } else if (!strncmp("sock_dir ", line, 9)) {
                config.sock_dir = strdup(&line[9]);
        } else if (!strncmp("check_sighash ", line, 9)) {
-               config.check_sighash = parsebool(&line[9],
-                                       config.check_sighash);
+               if (parsebool(&line[9], config.clean_policies &
+                                       ONAK_CLEAN_CHECK_SIGHASH)) {
+                       config.clean_policies |=
+                               ONAK_CLEAN_CHECK_SIGHASH;
+               } else {
+                       config.clean_policies &=
+                               ~ONAK_CLEAN_CHECK_SIGHASH;
+               }
+       } else {
+               return false;
+       }
+
+       return true;
+}
+
+/*
+ * Parse a new style .ini config line, supporting [sections] and name=value
+ * format.
+ */
+static bool parseconfigline(char *line)
+{
+       /* Yes, this means we're not re-entrant. */
+       static char section[32] = "";
+       struct onak_db_config *backend;
+       size_t len;
+       char *name, *value;
+
+       if (line[0] == '#' || line[0] == ';' ||
+                       line[0] == 0) {
+               /*
+                * Comment line, ignore.
+                */
+       } else if (line[0] == '[') {
+               /* Section name */
+               len = strlen(line);
+               if (line[len - 1] != ']') {
+                       logthing(LOGTHING_CRITICAL,
+                               "Malformed section header '%s' in "
+                               "config file.", line);
+                       return false;
+               }
+               if (len > sizeof(section)) {
+                       logthing(LOGTHING_CRITICAL,
+                               "Section header '%s' is too long in "
+                               "config file.", line);
+                       return false;
+               }
+               line[len - 1] = 0;
+               strncpy(section, &line[1], len);
+       } else if ((value = strchr(line, '=')) != NULL) {
+               name = line;
+               *value++ = 0;
+
+               /* We can have multiple backend: sections */
+               if (!strncmp(section, "backend:", 8)) {
+                       backend = find_db_backend_config(
+                               config.backends, &section[8]);
+                       if (backend == NULL) {
+                               backend = calloc(1,
+                                       sizeof(struct onak_db_config));
+                               backend->name = strdup(&section[8]);
+                               config.backends = lladd(config.backends,
+                                                       backend);
+                       }
+
+                       if (!strcmp(name, "type")) {
+                               backend->type = strdup(value);
+                       } else if (!strcmp(name, "location")) {
+                               backend->location = strdup(value);
+                       } else if (!strcmp(name, "hostname")) {
+                               backend->location = strdup(value);
+                       } else if (!strcmp(name, "username")) {
+                               backend->location = strdup(value);
+                       } else if (!strcmp(name, "password")) {
+                               backend->location = strdup(value);
+                       }
+
+#define MATCH(s, n) !strcmp(section, s) && !strcmp(name, n)
+               /* [main] section */
+               } else if (MATCH("main", "backend")) {
+                       config.db_backend = strdup(value);
+               } else if (MATCH("main", "backends_dir")) {
+                       config.backends_dir = strdup(value);
+               } else if (MATCH("main", "logfile")) {
+                       config.logfile = strdup(value);
+               } else if (MATCH("main", "loglevel")) {
+                       setlogthreshold(atoi(value));
+               } else if (MATCH("main", "use_keyd")) {
+                       config.use_keyd = parsebool(value,
+                                       config.use_keyd);
+               } else if (MATCH("main", "sock_dir")) {
+                       config.sock_dir = strdup(value);
+               } else if (MATCH("main", "max_reply_keys")) {
+                       config.maxkeys = atoi(value);
+               /* [mail] section */
+               } else if (MATCH("mail", "maintainer_email")) {
+                       config.adminemail = strdup(value);
+               } else if (MATCH("mail", "mail_dir")) {
+               config.mail_dir = strdup(value);
+               } else if (MATCH("mail", "mta")) {
+                       config.mta = strdup(value);
+               } else if (MATCH("mail", "bin_dir")) {
+                       config.bin_dir = strdup(value);
+               } else if (MATCH("mail", "this_site")) {
+                       config.thissite = strdup(value);
+               } else if (MATCH("mail", "syncsite")) {
+                       config.syncsites = lladd(config.syncsites,
+                               strdup(value));
+               /* [verification] section */
+               } else if (MATCH("verification", "blacklist")) {
+                       array_load(&config.blacklist, value);
+               } else if (MATCH("verification", "drop_v3")) {
+                       if (parsebool(value, config.clean_policies &
+                                       ONAK_CLEAN_DROP_V3_KEYS)) {
+                               config.clean_policies |=
+                                       ONAK_CLEAN_DROP_V3_KEYS;
+                       } else {
+                               config.clean_policies &=
+                                       ~ONAK_CLEAN_DROP_V3_KEYS;
+                       }
+               } else if (MATCH("verification", "check_sighash")) {
+                       if (parsebool(value, config.clean_policies &
+                                       ONAK_CLEAN_CHECK_SIGHASH)) {
+                               config.clean_policies |=
+                                       ONAK_CLEAN_CHECK_SIGHASH;
+                       } else {
+                               config.clean_policies &=
+                                       ~ONAK_CLEAN_CHECK_SIGHASH;
+                       }
+               } else if (MATCH("verification", "check_packet_size")) {
+                       if (parsebool(value, config.clean_policies &
+                                       ONAK_CLEAN_LARGE_PACKETS)) {
+                               config.clean_policies |=
+                                       ONAK_CLEAN_LARGE_PACKETS;
+                       } else {
+                               config.clean_policies &=
+                                       ~ONAK_CLEAN_LARGE_PACKETS;
+                       }
+               } else if (MATCH("verification", "require_other_sig")) {
+#if HAVE_CRYPTO
+                       if (parsebool(value, config.clean_policies &
+                                       ONAK_CLEAN_NEED_OTHER_SIG)) {
+                               config.clean_policies |=
+                                       ONAK_CLEAN_NEED_OTHER_SIG;
+                       } else {
+                               config.clean_policies &=
+                                       ~ONAK_CLEAN_NEED_OTHER_SIG;
+                       }
+#else
+                       logthing(LOGTHING_ERROR,
+                                       "Compiled without crypto support, "
+                                       "require_other_sig not available.");
+#endif
+               } else if (MATCH("verification", "update_only")) {
+                       if (parsebool(value, config.clean_policies &
+                                       ONAK_CLEAN_UPDATE_ONLY)) {
+                               config.clean_policies |=
+                                       ONAK_CLEAN_UPDATE_ONLY;
+                       } else {
+                               config.clean_policies &=
+                                       ~ONAK_CLEAN_UPDATE_ONLY;
+                       }
+               } else if (MATCH("verification", "verify_signatures")) {
+#if HAVE_CRYPTO
+                       if (parsebool(value, config.clean_policies &
+                                       ONAK_CLEAN_VERIFY_SIGNATURES)) {
+                               config.clean_policies |=
+                                       ONAK_CLEAN_VERIFY_SIGNATURES;
+                       } else {
+                               config.clean_policies &=
+                                       ~ONAK_CLEAN_VERIFY_SIGNATURES;
+                       }
+#else
+                       logthing(LOGTHING_ERROR,
+                                       "Compiled without crypto support, "
+                                       "verify_signatures not available.");
+#endif
+               } else {
+                       return false;
+               }
        } else {
                return false;
        }
@@ -169,29 +369,75 @@ void readconfig(const char *configfile) {
        char *dir, *conf;
        size_t len;
        struct onak_db_config *backend;
+       bool oldstyle = false;
+       bool res;
 
        curline[1023] = 0;
+
+       /*
+        * Try to find a config file to use. If one is explicitly provided,
+        * use that. Otherwise look in $XDG_CONFIG_HOME, $HOME and finally
+        * the build in configuration directory. We try an old style onak.conf
+        * first and then the new style onak.ini if that wasn't found - this
+        * is to prevent breaking existing installs on upgrade.
+        */
        if (configfile == NULL) {
                conffile = NULL;
                if ((dir = getenv("XDG_CONFIG_HOME")) != NULL) {
-                       len = strlen(dir) + 1 + 9 + 1; /* dir + / + onak.conf + NUL */
+                       /* dir + / + onak.conf + NUL */
+                       len = strlen(dir) + 1 + 9 + 1;
                        conf = malloc(len);
                        snprintf(conf, len, "%s/onak.conf", dir);
                        conffile = fopen(conf, "r");
+                       if (conffile == NULL) {
+                               /* Conveniently .ini is shorter than .conf */
+                               snprintf(conf, len, "%s/onak.ini", dir);
+                               conffile = fopen(conf, "r");
+                       } else {
+                               oldstyle = true;
+                       }
                        free(conf);
                } else if ((dir = getenv("HOME")) != NULL) {
-                       len = strlen(dir) + 18 + 1; /* dir + /.config/onak.conf + NUL */
+                       /* dir + /.config/onak.conf + NUL */
+                       len = strlen(dir) + 18 + 1;
                        conf = malloc(len);
                        snprintf(conf, len, "%s/.config/onak.conf", dir);
                        conffile = fopen(conf, "r");
+                       if (conffile == NULL) {
+                               /* Conveniently .ini is shorter than .conf */
+                               snprintf(conf, len, "%s/onak.ini", dir);
+                               conffile = fopen(conf, "r");
+                       } else {
+                               oldstyle = true;
+                       }
                        free(conf);
                }
                if (conffile == NULL) {
-                       conffile = fopen(CONFIGFILE, "r");
+                       conffile = fopen(CONFIGDIR "/onak.conf", "r");
+                       if (conffile == NULL) {
+                               conffile = fopen(CONFIGDIR "/onak.ini", "r");
+                       } else {
+                               oldstyle = true;
+                       }
                }
        } else {
+               /*
+                * Explicitly provided config file; if the filename ends .conf
+                * assume it's old style.
+                */
+               len = strlen(configfile);
+               if (!strcmp(&configfile[len - 5], ".conf")) {
+                       oldstyle = true;
+               }
                conffile = fopen(configfile, "r");
        }
+
+       if (oldstyle) {
+               logthing(LOGTHING_CRITICAL, "Reading deprecated old-style "
+                               "configuration file. This will not be "
+                               "supported in the next release.");
+       }
+
        if (conffile != NULL) {
                if (!fgets(curline, 1023, conffile)) {
                        logthing(LOGTHING_CRITICAL,
@@ -200,10 +446,12 @@ void readconfig(const char *configfile) {
                        return;
                }
 
-               /* Add a single DB configuration */
-               backend = calloc(1, sizeof(*backend));
-               config.backend = backend;
-               config.backends = lladd(NULL, backend);
+               if (oldstyle) {
+                       /* Add a single DB configuration */
+                       backend = calloc(1, sizeof(*backend));
+                       config.backend = backend;
+                       config.backends = lladd(NULL, backend);
+               }
 
                while (!feof(conffile)) {
                        /* Strip any trailing white space */
@@ -219,7 +467,12 @@ void readconfig(const char *configfile) {
                                i++;
                        }
 
-                       if (!parseconfigline(&curline[i])) {
+                       if (oldstyle) {
+                               res = parseoldconfigline(&curline[i]);
+                       } else {
+                               res = parseconfigline(&curline[i]);
+                       }
+                       if (!res) {
                                logthing(LOGTHING_ERROR,
                                        "Unknown config line: %s", curline);
                        }
@@ -232,12 +485,87 @@ void readconfig(const char *configfile) {
                        }
                }
                fclose(conffile);
+
+               if (config.db_backend == NULL) {
+                       logthing(LOGTHING_CRITICAL,
+                               "No database backend configured.");
+               } else if (!oldstyle) {
+                       config.backend = find_db_backend_config(
+                               config.backends, config.db_backend);
+                       if (config.backend == NULL) {
+                               logthing(LOGTHING_NOTICE,
+                                       "Couldn't find configuration for %s "
+                                       "backend.", config.db_backend);
+                       }
+               }
        } else {
                logthing(LOGTHING_NOTICE,
                                "Couldn't open config file; using defaults.");
        }
 }
 
+void writeconfig(const char *configfile)
+{
+       FILE *conffile;
+       struct ll *cur;
+
+       if (configfile) {
+               conffile = fopen(configfile, "w");
+       } else {
+               conffile = stdout;
+       }
+
+#define WRITE_IF_NOT_NULL(c, s) if (c != NULL) { \
+       fprintf(conffile, s "=%s\n", c); \
+}
+#define WRITE_BOOL(c, s) fprintf(conffile, s "=%s\n", s ? "true" : "false");
+
+       fprintf(conffile, "[main]\n");
+       WRITE_IF_NOT_NULL(config.backend->name, "backend");
+       WRITE_IF_NOT_NULL(config.backends_dir, "backends_dir");
+       WRITE_IF_NOT_NULL(config.logfile, "logfile");
+       fprintf(conffile, "loglevel=%d\n", getlogthreshold());
+       WRITE_BOOL(config.use_keyd, "use_keyd");
+       WRITE_IF_NOT_NULL(config.sock_dir, "sock_dir");
+       fprintf(conffile, "max_reply_keys=%d\n", config.maxkeys);
+       fprintf(conffile, "\n");
+
+       fprintf(conffile, "[verification]\n");
+       WRITE_BOOL(config.clean_policies & ONAK_CLEAN_CHECK_SIGHASH,
+                       "check_sighash");
+       fprintf(conffile, "\n");
+
+       fprintf(conffile, "[mail]\n");
+       WRITE_IF_NOT_NULL(config.adminemail, "maintainer_email");
+       WRITE_IF_NOT_NULL(config.mail_dir, "mail_dir");
+       WRITE_IF_NOT_NULL(config.mta, "mta");
+       WRITE_IF_NOT_NULL(config.bin_dir, "bin_dir");
+       WRITE_IF_NOT_NULL(config.thissite, "this_site");
+
+       cur = config.syncsites;
+       while (cur != NULL) {
+               fprintf(conffile, "syncsite=%s\n", (char *) cur->object);
+               cur = cur->next;
+       }
+
+       cur = config.backends;
+       while (cur != NULL) {
+               struct onak_db_config *backend =
+                       (struct onak_db_config *) cur->object;
+               fprintf(conffile, "\n[backend:%s]\n", backend->name);
+               WRITE_IF_NOT_NULL(backend->type, "type");
+               WRITE_IF_NOT_NULL(backend->location, "location");
+               WRITE_IF_NOT_NULL(backend->hostname, "hostname");
+               WRITE_IF_NOT_NULL(backend->username, "username");
+               WRITE_IF_NOT_NULL(backend->password, "password");
+               cur = cur->next;
+       }
+
+       if (configfile) {
+               fclose(conffile);
+       }
+}
+
 void cleanupdbconfig(void *object)
 {
        struct onak_db_config *dbconfig = (struct onak_db_config *) object;
@@ -315,4 +643,7 @@ void cleanupconfig(void) {
                free(config.mail_dir);
                config.mail_dir = NULL;
        }
+       if (config.blacklist.count != 0) {
+               array_free(&config.blacklist);
+       }
 }