| 1 | /* |
| 2 | ** Copyright 2000-2016 Double Precision, Inc. See COPYING for |
| 3 | ** distribution information. |
| 4 | */ |
| 5 | |
| 6 | |
| 7 | #include <stdio.h> |
| 8 | #include <stdlib.h> |
| 9 | #include <string.h> |
| 10 | #include <unistd.h> |
| 11 | #include <ctype.h> |
| 12 | #include <sys/types.h> |
| 13 | #include <sys/stat.h> |
| 14 | #include <libpq-fe.h> |
| 15 | #include <time.h> |
| 16 | #include <errno.h> |
| 17 | |
| 18 | extern "C" { |
| 19 | #include "authpgsql.h" |
| 20 | #include "authpgsqlrc.h" |
| 21 | #include "auth.h" |
| 22 | #include "courierauthdebug.h" |
| 23 | }; |
| 24 | |
| 25 | #include "authconfigfile.h" |
| 26 | #include <string> |
| 27 | |
| 28 | #define err courier_auth_err |
| 29 | |
| 30 | |
| 31 | class authpgsql_userinfo { |
| 32 | public: |
| 33 | std::string username; |
| 34 | std::string fullname; |
| 35 | std::string cryptpw; |
| 36 | std::string clearpw; |
| 37 | std::string home; |
| 38 | std::string maildir; |
| 39 | std::string quota; |
| 40 | std::string options; |
| 41 | uid_t uid; |
| 42 | gid_t gid; |
| 43 | } ; |
| 44 | |
| 45 | class authpgsql_connection { |
| 46 | |
| 47 | time_t last_time; |
| 48 | PGconn *pgconn; |
| 49 | public: |
| 50 | |
| 51 | class sentquery { |
| 52 | |
| 53 | int status; |
| 54 | |
| 55 | public: |
| 56 | sentquery(const authpgsql_connection &conn, |
| 57 | const std::string &query) |
| 58 | : status(PQsendQuery(conn.pgconn, query.c_str())) |
| 59 | { |
| 60 | if (status == 0) |
| 61 | DPRINTF("PQsendQuery failed: %s", |
| 62 | PQerrorMessage(conn.pgconn)); |
| 63 | } |
| 64 | |
| 65 | operator bool() const |
| 66 | { |
| 67 | return status != 0; |
| 68 | } |
| 69 | }; |
| 70 | |
| 71 | class result { |
| 72 | PGresult *res; |
| 73 | |
| 74 | public: |
| 75 | result(const authpgsql_connection &conn, |
| 76 | const std::string &query) |
| 77 | : res(PQexec(conn.pgconn, query.c_str())) |
| 78 | { |
| 79 | } |
| 80 | |
| 81 | result(const authpgsql_connection &conn, |
| 82 | const sentquery &query) |
| 83 | : res(PQgetResult(conn.pgconn)) |
| 84 | { |
| 85 | } |
| 86 | |
| 87 | ~result() |
| 88 | { |
| 89 | if (res) |
| 90 | PQclear(res); |
| 91 | } |
| 92 | |
| 93 | result(const result &res); |
| 94 | result &operator=(const result &res); |
| 95 | |
| 96 | operator bool() const { return res != 0; } |
| 97 | |
| 98 | bool query_failed() const |
| 99 | { |
| 100 | return res == 0 |
| 101 | || PQresultStatus(res) != PGRES_TUPLES_OK; |
| 102 | } |
| 103 | |
| 104 | bool command_failed() const |
| 105 | { |
| 106 | return res == 0 |
| 107 | || PQresultStatus(res) != PGRES_COMMAND_OK; |
| 108 | } |
| 109 | |
| 110 | size_t ntuples() const |
| 111 | { |
| 112 | return res == 0 ? 0: PQntuples(res); |
| 113 | } |
| 114 | |
| 115 | size_t nfields() const |
| 116 | { |
| 117 | return res == 0 ? 0: PQnfields(res); |
| 118 | } |
| 119 | |
| 120 | std::string value(size_t tuple, size_t field) const |
| 121 | { |
| 122 | std::string v; |
| 123 | |
| 124 | if (tuple < ntuples() && field < nfields()) |
| 125 | { |
| 126 | const char *p=PQgetvalue(res, tuple, field); |
| 127 | |
| 128 | if (p) |
| 129 | v=p; |
| 130 | } |
| 131 | return v; |
| 132 | } |
| 133 | }; |
| 134 | |
| 135 | class authpgsqlrc_vars { |
| 136 | |
| 137 | public: |
| 138 | |
| 139 | std::string character_set; |
| 140 | std::string connection; |
| 141 | std::string select_clause; |
| 142 | std::string chpass_clause; |
| 143 | std::string enumerate_clause; |
| 144 | std::string defdomain; |
| 145 | std::string user_table; |
| 146 | std::string clear_field; |
| 147 | std::string crypt_field; |
| 148 | std::string name_field; |
| 149 | std::string uid_field; |
| 150 | std::string gid_field; |
| 151 | std::string login_field; |
| 152 | std::string home_field; |
| 153 | std::string maildir_field; |
| 154 | std::string defaultdelivery_field; |
| 155 | std::string quota_field; |
| 156 | std::string options_field; |
| 157 | std::string where_clause; |
| 158 | }; |
| 159 | |
| 160 | class authpgsqlrc_file : public courier::auth::config_file, |
| 161 | public authpgsqlrc_vars { |
| 162 | |
| 163 | authpgsql_connection &conn; |
| 164 | |
| 165 | public: |
| 166 | |
| 167 | authpgsqlrc_file &operator=(const authpgsqlrc_file &o) |
| 168 | { |
| 169 | courier::auth::config_file::operator=(o); |
| 170 | authpgsqlrc_vars::operator=(o); |
| 171 | return *this; |
| 172 | } |
| 173 | |
| 174 | authpgsqlrc_file(authpgsql_connection &connArg) |
| 175 | : courier::auth::config_file(AUTHPGSQLRC), |
| 176 | conn(connArg) |
| 177 | { |
| 178 | } |
| 179 | |
| 180 | bool do_load() |
| 181 | { |
| 182 | character_set=config("PGSQL_CHARACTER_SET"); |
| 183 | |
| 184 | if (!config("PGSQL_CONNECTION", connection, true)) |
| 185 | return false; |
| 186 | |
| 187 | select_clause=config("PGSQL_SELECT_CLAUSE"); |
| 188 | chpass_clause=config("PGSQL_CHPASS_CLAUSE"); |
| 189 | enumerate_clause=config("PGSQL_ENUMERATE_CLAUSE"); |
| 190 | |
| 191 | defdomain=config("DEFAULT_DOMAIN"); |
| 192 | |
| 193 | if (select_clause.empty() || chpass_clause.empty() || |
| 194 | enumerate_clause.empty()) |
| 195 | { |
| 196 | if (!config("PGSQL_USER_TABLE", user_table, true)) |
| 197 | return false; |
| 198 | |
| 199 | clear_field=config("PGSQL_CLEAR_PWFIELD"); |
| 200 | if (clear_field.empty()) |
| 201 | { |
| 202 | if (!config("PGSQL_CRYPT_PWFIELD", |
| 203 | crypt_field, |
| 204 | true)) |
| 205 | return false; |
| 206 | } |
| 207 | else |
| 208 | { |
| 209 | crypt_field=config("PGSQL_CRYPT_PWFIELD"); |
| 210 | } |
| 211 | |
| 212 | config("PGSQL_NAME_FIELD", name_field, false, |
| 213 | "''"); |
| 214 | |
| 215 | if (crypt_field.empty()) crypt_field="''"; |
| 216 | if (clear_field.empty()) clear_field="''"; |
| 217 | |
| 218 | config("PGSQL_UID_FIELD", uid_field, false, "uid"); |
| 219 | config("PGSQL_GID_FIELD", gid_field, false, "gid"); |
| 220 | config("PGSQL_LOGIN_FIELD", login_field, false, "id"); |
| 221 | config("PGSQL_HOME_FIELD", home_field, false, "home"); |
| 222 | config("PGSQL_MAILDIR_FIELD", maildir_field, false, "''"); |
| 223 | config("PGSQL_DEFAULTDELIVERY", defaultdelivery_field, false, "''"); |
| 224 | config("PGSQL_QUOTA_FIELD", quota_field, false, "''"); |
| 225 | config("PGSQL_AUXOPTIONS_FIELD", options_field, false, "''"); |
| 226 | |
| 227 | config("PGSQL_WHERE_CLAUSE", where_clause, false, "1=1"); |
| 228 | } |
| 229 | |
| 230 | return true; |
| 231 | } |
| 232 | |
| 233 | void do_reload() |
| 234 | { |
| 235 | authpgsqlrc_file new_file(conn); |
| 236 | |
| 237 | if (new_file.load(true)) |
| 238 | { |
| 239 | *this=new_file; |
| 240 | DPRINTF("authpgsql: reloaded %s", filename); |
| 241 | |
| 242 | // Disconnect from the server, new login |
| 243 | // parameters, perhaps. |
| 244 | |
| 245 | conn.disconnect(); |
| 246 | } |
| 247 | } |
| 248 | }; |
| 249 | |
| 250 | authpgsqlrc_file config_file; |
| 251 | |
| 252 | authpgsql_connection() |
| 253 | : last_time(0), pgconn(0), config_file(*this) |
| 254 | { |
| 255 | } |
| 256 | |
| 257 | ~authpgsql_connection() |
| 258 | { |
| 259 | disconnect(); |
| 260 | } |
| 261 | |
| 262 | void disconnect() |
| 263 | { |
| 264 | if (pgconn) |
| 265 | { |
| 266 | PQfinish(pgconn); |
| 267 | pgconn=0; |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | bool do_connect(); |
| 272 | |
| 273 | bool getuserinfo(authpgsql_userinfo &uiret, |
| 274 | const char *username, |
| 275 | const char *service); |
| 276 | |
| 277 | private: |
| 278 | bool getuserinfo(authpgsql_userinfo &uiret, |
| 279 | const result &res); |
| 280 | public: |
| 281 | bool setpass(const char *user, const char *pass, const char *oldpass); |
| 282 | |
| 283 | void enumerate( void(*cb_func)(const char *name, |
| 284 | uid_t uid, |
| 285 | gid_t gid, |
| 286 | const char *homedir, |
| 287 | const char *maildir, |
| 288 | const char *options, |
| 289 | void *void_arg), |
| 290 | void *void_arg); |
| 291 | void enumerate( const sentquery &sent, |
| 292 | void(*cb_func)(const char *name, |
| 293 | uid_t uid, |
| 294 | gid_t gid, |
| 295 | const char *homedir, |
| 296 | const char *maildir, |
| 297 | const char *options, |
| 298 | void *void_arg), |
| 299 | void *void_arg); |
| 300 | |
| 301 | std::string escape(const std::string &s) |
| 302 | { |
| 303 | std::string buffer; |
| 304 | size_t n=s.size()*2+1; |
| 305 | |
| 306 | buffer.resize(n); |
| 307 | |
| 308 | n=PQescapeStringConn(pgconn, &buffer[0], |
| 309 | s.c_str(), s.size(), 0); |
| 310 | |
| 311 | buffer.resize(n); |
| 312 | |
| 313 | return buffer; |
| 314 | } |
| 315 | |
| 316 | std::string escape_username(std::string username) |
| 317 | { |
| 318 | if (username.find('@') == username.npos && |
| 319 | !config_file.defdomain.empty()) |
| 320 | { |
| 321 | username.push_back('@'); |
| 322 | username += config_file.defdomain; |
| 323 | } |
| 324 | |
| 325 | return escape(username); |
| 326 | } |
| 327 | |
| 328 | static authpgsql_connection *singleton; |
| 329 | }; |
| 330 | |
| 331 | bool authpgsql_connection::do_connect() |
| 332 | { |
| 333 | if (pgconn) |
| 334 | { |
| 335 | time_t t_check; |
| 336 | |
| 337 | time(&t_check); |
| 338 | |
| 339 | if (t_check < last_time) |
| 340 | last_time=t_check; /* System clock changed */ |
| 341 | |
| 342 | if (t_check < last_time + 60) |
| 343 | return true; |
| 344 | |
| 345 | last_time=t_check; |
| 346 | |
| 347 | if (PQstatus(pgconn) == CONNECTION_OK) return true; |
| 348 | |
| 349 | DPRINTF("authpgsql: PQstatus failed, connection lost"); |
| 350 | PQfinish(pgconn); |
| 351 | pgconn=0; |
| 352 | } |
| 353 | |
| 354 | pgconn = PQconnectdb(config_file.connection.c_str()); |
| 355 | |
| 356 | if (PQstatus(pgconn) == CONNECTION_BAD) |
| 357 | { |
| 358 | err("PGSQL_CONNECTION could not be established"); |
| 359 | err("%s", PQerrorMessage(pgconn)); |
| 360 | PQfinish(pgconn); |
| 361 | pgconn=0; |
| 362 | return false; |
| 363 | } |
| 364 | |
| 365 | if (!config_file.character_set.empty()) |
| 366 | { |
| 367 | PQsetClientEncoding(pgconn, |
| 368 | config_file.character_set.c_str()); |
| 369 | std::string real_character_set= |
| 370 | pg_encoding_to_char(PQclientEncoding(pgconn)); |
| 371 | |
| 372 | if (config_file.character_set != real_character_set) |
| 373 | { |
| 374 | err("Cannot set character set to \"%s\"," |
| 375 | " using \"%s\"\n", |
| 376 | config_file.character_set.c_str(), |
| 377 | real_character_set.c_str()); |
| 378 | } |
| 379 | else |
| 380 | { |
| 381 | DPRINTF("Using character set: %s", |
| 382 | config_file.character_set.c_str()); |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | return true; |
| 387 | } |
| 388 | |
| 389 | bool authpgsql_connection::getuserinfo(authpgsql_userinfo &uiret, |
| 390 | const char *username, |
| 391 | const char *service) |
| 392 | { |
| 393 | std::string querybuf; |
| 394 | |
| 395 | if (!do_connect()) |
| 396 | return false; |
| 397 | |
| 398 | if (config_file.select_clause.empty()) |
| 399 | { |
| 400 | std::ostringstream o; |
| 401 | |
| 402 | o << "SELECT " |
| 403 | << config_file.login_field << ", " |
| 404 | << config_file.crypt_field << ", " |
| 405 | << config_file.clear_field << ", " |
| 406 | << config_file.uid_field << ", " |
| 407 | << config_file.gid_field << ", " |
| 408 | << config_file.home_field << ", " |
| 409 | << (strcmp(service, "courier") == 0 ? |
| 410 | config_file.defaultdelivery_field |
| 411 | :config_file.maildir_field) << ", " |
| 412 | << config_file.quota_field << ", " |
| 413 | << config_file.name_field << ", " |
| 414 | << config_file.options_field |
| 415 | << " FROM " << config_file.user_table |
| 416 | << " WHERE " << config_file.login_field |
| 417 | << " = '" |
| 418 | << escape_username(username) |
| 419 | << "' AND (" << config_file.where_clause << ")"; |
| 420 | |
| 421 | querybuf=o.str(); |
| 422 | } |
| 423 | else |
| 424 | { |
| 425 | std::map<std::string, std::string> parameters; |
| 426 | |
| 427 | parameters["service"]=service; |
| 428 | |
| 429 | querybuf=config_file |
| 430 | .parse_custom_query(config_file.select_clause, |
| 431 | escape(username), |
| 432 | config_file.defdomain, |
| 433 | parameters); |
| 434 | } |
| 435 | |
| 436 | DPRINTF("SQL query: %s", querybuf.c_str()); |
| 437 | |
| 438 | result res1(*this, querybuf); |
| 439 | |
| 440 | if (res1) |
| 441 | return getuserinfo(uiret, res1); |
| 442 | |
| 443 | disconnect(); |
| 444 | if (do_connect()) |
| 445 | { |
| 446 | result res2(*this, querybuf); |
| 447 | |
| 448 | if (res2) |
| 449 | return getuserinfo(uiret, res2); |
| 450 | } |
| 451 | return false; |
| 452 | } |
| 453 | |
| 454 | bool authpgsql_connection::getuserinfo(authpgsql_userinfo &uiret, |
| 455 | const result &res) |
| 456 | { |
| 457 | if (res.query_failed()) |
| 458 | return false; |
| 459 | |
| 460 | if (res.ntuples() > 0) |
| 461 | { |
| 462 | if (res.nfields() < 6) |
| 463 | { |
| 464 | DPRINTF("incomplete row, only %d fields returned", |
| 465 | res.nfields()); |
| 466 | return false; |
| 467 | } |
| 468 | |
| 469 | uiret.username=res.value(0, 0); |
| 470 | uiret.cryptpw=res.value(0, 1); |
| 471 | uiret.clearpw=res.value(0, 2); |
| 472 | |
| 473 | { |
| 474 | std::string v=res.value(0, 3); |
| 475 | |
| 476 | std::istringstream i(v); |
| 477 | |
| 478 | i >> uiret.uid; |
| 479 | |
| 480 | if (i.fail() || !i.eof()) |
| 481 | { |
| 482 | DPRINTF("invalid value for uid: '%s'", |
| 483 | v.c_str()); |
| 484 | return false; |
| 485 | } |
| 486 | } |
| 487 | |
| 488 | { |
| 489 | std::string v=res.value(0, 4); |
| 490 | |
| 491 | std::istringstream i(v); |
| 492 | |
| 493 | i >> uiret.gid; |
| 494 | |
| 495 | if (i.fail() || !i.eof()) |
| 496 | { |
| 497 | DPRINTF("invalid value for gid: '%s'", |
| 498 | v.c_str()); |
| 499 | return false; |
| 500 | } |
| 501 | } |
| 502 | |
| 503 | |
| 504 | uiret.home=res.value(0, 5); |
| 505 | uiret.maildir=res.value(0, 6); |
| 506 | uiret.quota=res.value(0, 7); |
| 507 | uiret.fullname=res.value(0, 8); |
| 508 | uiret.options=res.value(0, 9); |
| 509 | } |
| 510 | else |
| 511 | { |
| 512 | DPRINTF("zero rows returned"); |
| 513 | return true; |
| 514 | } |
| 515 | |
| 516 | return true; |
| 517 | } |
| 518 | |
| 519 | bool authpgsql_connection::setpass(const char *user, const char *pass, |
| 520 | const char *oldpass) |
| 521 | { |
| 522 | if (!do_connect()) |
| 523 | return false; |
| 524 | |
| 525 | std::string newpass_crypt; |
| 526 | |
| 527 | { |
| 528 | char *p; |
| 529 | |
| 530 | if (!(p=authcryptpasswd(pass, oldpass))) |
| 531 | return false; |
| 532 | |
| 533 | newpass_crypt=p; |
| 534 | free(p); |
| 535 | } |
| 536 | |
| 537 | std::string clear_escaped=escape(pass); |
| 538 | std::string crypt_escaped=escape(newpass_crypt); |
| 539 | |
| 540 | std::string sql_buf; |
| 541 | |
| 542 | if (config_file.chpass_clause.empty()) |
| 543 | { |
| 544 | std::ostringstream o; |
| 545 | |
| 546 | o << "UPDATE " << config_file.user_table |
| 547 | << " SET "; |
| 548 | if (config_file.clear_field != "''") |
| 549 | { |
| 550 | o << config_file.clear_field << "='" |
| 551 | << clear_escaped |
| 552 | << "'"; |
| 553 | |
| 554 | if (config_file.crypt_field != "''") |
| 555 | o << ", "; |
| 556 | } |
| 557 | |
| 558 | if (config_file.crypt_field != "''") |
| 559 | { |
| 560 | o << config_file.crypt_field << "='" |
| 561 | << crypt_escaped |
| 562 | << "'"; |
| 563 | } |
| 564 | |
| 565 | o << " WHERE " |
| 566 | << config_file.login_field << "='" |
| 567 | << escape_username(user) |
| 568 | << "' AND (" << config_file.where_clause << ")"; |
| 569 | sql_buf=o.str(); |
| 570 | } |
| 571 | else |
| 572 | { |
| 573 | std::map<std::string, std::string> parameters; |
| 574 | |
| 575 | parameters["newpass"]=clear_escaped; |
| 576 | parameters["newpass_crypt"]=crypt_escaped; |
| 577 | |
| 578 | sql_buf=config_file |
| 579 | .parse_custom_query(config_file.chpass_clause, |
| 580 | user, |
| 581 | config_file.defdomain, |
| 582 | parameters); |
| 583 | } |
| 584 | |
| 585 | if (courier_authdebug_login_level >= 2) |
| 586 | { |
| 587 | DPRINTF("setpass SQL: %s", sql_buf.c_str()); |
| 588 | } |
| 589 | |
| 590 | result res(*this, sql_buf); |
| 591 | |
| 592 | if (res.command_failed()) |
| 593 | { |
| 594 | DPRINTF("setpass SQL failed"); |
| 595 | disconnect(); |
| 596 | return false; |
| 597 | } |
| 598 | return (true); |
| 599 | } |
| 600 | |
| 601 | void authpgsql_connection::enumerate( void(*cb_func)(const char *name, |
| 602 | uid_t uid, |
| 603 | gid_t gid, |
| 604 | const char *homedir, |
| 605 | const char *maildir, |
| 606 | const char *options, |
| 607 | void *void_arg), |
| 608 | void *void_arg) |
| 609 | { |
| 610 | if (!do_connect()) |
| 611 | { |
| 612 | (*cb_func)(NULL, 0, 0, NULL, NULL, NULL, void_arg); |
| 613 | return; |
| 614 | } |
| 615 | |
| 616 | std::string sql_buf; |
| 617 | |
| 618 | if (config_file.enumerate_clause.empty()) |
| 619 | { |
| 620 | std::ostringstream o; |
| 621 | |
| 622 | o << "SELECT " |
| 623 | << config_file.login_field << ", " |
| 624 | << config_file.uid_field << ", " |
| 625 | << config_file.gid_field << ", " |
| 626 | << config_file.home_field << ", " |
| 627 | << config_file.maildir_field << ", " |
| 628 | << config_file.options_field |
| 629 | << " FROM " |
| 630 | << config_file.user_table << " WHERE " |
| 631 | << config_file.where_clause; |
| 632 | |
| 633 | sql_buf=o.str(); |
| 634 | } |
| 635 | else |
| 636 | { |
| 637 | std::map<std::string, std::string> parameters; |
| 638 | |
| 639 | parameters["service"]="enumerate"; |
| 640 | sql_buf=config_file |
| 641 | .parse_custom_query(config_file.enumerate_clause, "*", |
| 642 | config_file.defdomain, parameters); |
| 643 | } |
| 644 | |
| 645 | DPRINTF("authpgsql: enumerate query: %s", sql_buf.c_str()); |
| 646 | |
| 647 | sentquery query1(*this, sql_buf); |
| 648 | |
| 649 | if (query1) |
| 650 | { |
| 651 | enumerate(query1, cb_func, void_arg); |
| 652 | return; |
| 653 | } |
| 654 | |
| 655 | disconnect(); |
| 656 | |
| 657 | if (!do_connect()) |
| 658 | return; |
| 659 | |
| 660 | sentquery query2(*this, sql_buf); |
| 661 | if (query2) |
| 662 | { |
| 663 | enumerate(query2, cb_func, void_arg); |
| 664 | return; |
| 665 | } |
| 666 | } |
| 667 | |
| 668 | void authpgsql_connection::enumerate( const sentquery &sent, |
| 669 | void(*cb_func)(const char *name, |
| 670 | uid_t uid, |
| 671 | gid_t gid, |
| 672 | const char *homedir, |
| 673 | const char *maildir, |
| 674 | const char *options, |
| 675 | void *void_arg), |
| 676 | void *void_arg) |
| 677 | { |
| 678 | while (1) |
| 679 | { |
| 680 | result res(*this, sent); |
| 681 | |
| 682 | if (!res) |
| 683 | break; |
| 684 | |
| 685 | if (res.query_failed()) |
| 686 | continue; |
| 687 | |
| 688 | size_t n=res.ntuples(); |
| 689 | |
| 690 | for (size_t i=0; i<n; ++i) |
| 691 | { |
| 692 | std::string username=res.value(i, 0); |
| 693 | std::string uid_s=res.value(i, 1); |
| 694 | std::string gid_s=res.value(i, 2); |
| 695 | std::string homedir=res.value(i, 3); |
| 696 | std::string maildir=res.value(i, 4); |
| 697 | std::string options=res.value(i, 5); |
| 698 | |
| 699 | uid_t uid=0; |
| 700 | gid_t gid=0; |
| 701 | |
| 702 | std::istringstream(uid_s) >> uid; |
| 703 | std::istringstream(gid_s) >> gid; |
| 704 | |
| 705 | if (username.empty() || homedir.empty()) |
| 706 | continue; |
| 707 | |
| 708 | (*cb_func)(username.c_str(), uid, gid, |
| 709 | homedir.c_str(), |
| 710 | (maildir.empty() ? 0:maildir.c_str()), |
| 711 | (options.empty() ? 0:options.c_str()), |
| 712 | void_arg); |
| 713 | } |
| 714 | } |
| 715 | (*cb_func)(NULL, 0, 0, NULL, NULL, NULL, void_arg); |
| 716 | } |
| 717 | |
| 718 | |
| 719 | static authpgsql_connection *get_conn() |
| 720 | { |
| 721 | if (authpgsql_connection::singleton) |
| 722 | { |
| 723 | authpgsql_connection::singleton->config_file.load(true); |
| 724 | return authpgsql_connection::singleton; |
| 725 | } |
| 726 | |
| 727 | authpgsql_connection *new_conn=new authpgsql_connection; |
| 728 | |
| 729 | if (new_conn->config_file.load()) |
| 730 | { |
| 731 | authpgsql_connection::singleton=new_conn; |
| 732 | return new_conn; |
| 733 | } |
| 734 | |
| 735 | delete new_conn; |
| 736 | return NULL; |
| 737 | } |
| 738 | |
| 739 | authpgsql_connection *authpgsql_connection::singleton=0; |
| 740 | |
| 741 | |
| 742 | static bool auth_pgsql_getuserinfo(authpgsql_userinfo &uiret, |
| 743 | const char *username, |
| 744 | const char *service) |
| 745 | { |
| 746 | authpgsql_connection *conn=get_conn(); |
| 747 | |
| 748 | if (!conn) |
| 749 | return false; |
| 750 | |
| 751 | return conn->getuserinfo(uiret, username, service); |
| 752 | } |
| 753 | |
| 754 | static bool docheckpw(authpgsql_userinfo &authinfo, |
| 755 | const char *pass) |
| 756 | { |
| 757 | if (!authinfo.cryptpw.empty()) |
| 758 | { |
| 759 | if (authcheckpassword(pass,authinfo.cryptpw.c_str())) |
| 760 | { |
| 761 | errno=EPERM; |
| 762 | return false; |
| 763 | } |
| 764 | } |
| 765 | else if (!authinfo.clearpw.empty()) |
| 766 | { |
| 767 | if (authinfo.clearpw != pass) |
| 768 | { |
| 769 | if (courier_authdebug_login_level >= 2) |
| 770 | { |
| 771 | DPRINTF("supplied password '%s' does not match clearpasswd '%s'", |
| 772 | pass, authinfo.clearpw.empty()); |
| 773 | } |
| 774 | else |
| 775 | { |
| 776 | DPRINTF("supplied password does not match clearpasswd"); |
| 777 | } |
| 778 | errno=EPERM; |
| 779 | return false; |
| 780 | } |
| 781 | } |
| 782 | else |
| 783 | { |
| 784 | DPRINTF("no password available to compare"); |
| 785 | errno=EPERM; |
| 786 | return false; |
| 787 | } |
| 788 | return true; |
| 789 | } |
| 790 | |
| 791 | static int do_auth_pgsql_login(const char *service, char *authdata, |
| 792 | int (*callback_func)(struct authinfo *, void *), |
| 793 | void *callback_arg) |
| 794 | { |
| 795 | char *user, *pass; |
| 796 | authpgsql_userinfo uiret; |
| 797 | struct authinfo aa; |
| 798 | |
| 799 | if ((user=strtok(authdata, "\n")) == 0 || |
| 800 | (pass=strtok(0, "\n")) == 0) |
| 801 | { |
| 802 | errno=EPERM; |
| 803 | return (-1); |
| 804 | } |
| 805 | |
| 806 | if (!auth_pgsql_getuserinfo(uiret, user, service)) |
| 807 | { |
| 808 | errno=EACCES; /* Fatal error - such as PgSQL being down */ |
| 809 | return (-1); |
| 810 | } |
| 811 | |
| 812 | if (!docheckpw(uiret, pass)) |
| 813 | return -1; |
| 814 | |
| 815 | memset(&aa, 0, sizeof(aa)); |
| 816 | |
| 817 | aa.sysuserid= &uiret.uid; |
| 818 | aa.sysgroupid= uiret.gid; |
| 819 | aa.homedir=uiret.home.c_str(); |
| 820 | aa.maildir=uiret.maildir.empty() ? 0:uiret.maildir.c_str(); |
| 821 | aa.address=uiret.username.c_str(); |
| 822 | aa.quota=uiret.quota.empty() ? 0:uiret.quota.c_str(); |
| 823 | aa.fullname=uiret.fullname.c_str(); |
| 824 | aa.options=uiret.options.c_str(); |
| 825 | aa.passwd=uiret.cryptpw.empty() ? 0:uiret.cryptpw.c_str(); |
| 826 | aa.clearpasswd=pass; |
| 827 | courier_authdebug_authinfo("DEBUG: authpgsql: ", &aa, |
| 828 | aa.clearpasswd, aa.passwd); |
| 829 | return (*callback_func)(&aa, callback_arg); |
| 830 | } |
| 831 | |
| 832 | |
| 833 | static int do_auth_pgsql_changepw(const char *service, const char *user, |
| 834 | const char *pass, |
| 835 | const char *newpass) |
| 836 | { |
| 837 | authpgsql_connection *conn=get_conn(); |
| 838 | |
| 839 | if (!conn) |
| 840 | return false; |
| 841 | |
| 842 | authpgsql_userinfo uiret; |
| 843 | |
| 844 | if (conn->getuserinfo(uiret, user, service)) |
| 845 | { |
| 846 | if (!docheckpw(uiret, pass)) |
| 847 | { |
| 848 | errno=EPERM; |
| 849 | return -1; |
| 850 | } |
| 851 | |
| 852 | if (!conn->setpass(user, newpass, uiret.cryptpw.c_str())) |
| 853 | { |
| 854 | errno=EPERM; |
| 855 | return (-1); |
| 856 | } |
| 857 | return 0; |
| 858 | } |
| 859 | |
| 860 | errno=EPERM; |
| 861 | return (-1); |
| 862 | } |
| 863 | |
| 864 | extern "C" { |
| 865 | #if 0 |
| 866 | }; |
| 867 | #endif |
| 868 | |
| 869 | void auth_pgsql_cleanup() |
| 870 | { |
| 871 | if (authpgsql_connection::singleton) |
| 872 | delete authpgsql_connection::singleton; |
| 873 | authpgsql_connection::singleton=0; |
| 874 | } |
| 875 | |
| 876 | void auth_pgsql_enumerate( void(*cb_func)(const char *name, |
| 877 | uid_t uid, |
| 878 | gid_t gid, |
| 879 | const char *homedir, |
| 880 | const char *maildir, |
| 881 | const char *options, |
| 882 | void *void_arg), |
| 883 | void *void_arg) |
| 884 | { |
| 885 | authpgsql_connection *conn=get_conn(); |
| 886 | |
| 887 | if (conn) |
| 888 | conn->enumerate(cb_func, void_arg); |
| 889 | } |
| 890 | |
| 891 | int auth_pgsql_login(const char *service, char *authdata, |
| 892 | int (*callback_func)(struct authinfo *, void *), |
| 893 | void *callback_arg) |
| 894 | { |
| 895 | return do_auth_pgsql_login(service, authdata, |
| 896 | callback_func, |
| 897 | callback_arg); |
| 898 | } |
| 899 | |
| 900 | int auth_pgsql_changepw(const char *service, const char *user, |
| 901 | const char *pass, |
| 902 | const char *newpass) |
| 903 | { |
| 904 | return do_auth_pgsql_changepw(service, user, pass, newpass); |
| 905 | } |
| 906 | |
| 907 | int auth_pgsql_pre(const char *user, const char *service, |
| 908 | int (*callback)(struct authinfo *, void *), void *arg) |
| 909 | { |
| 910 | struct authinfo aa; |
| 911 | authpgsql_userinfo uiret; |
| 912 | |
| 913 | if (!auth_pgsql_getuserinfo(uiret, user, service)) |
| 914 | return 1; |
| 915 | |
| 916 | if (uiret.home.empty()) /* User not found */ |
| 917 | return (-1); |
| 918 | |
| 919 | memset(&aa, 0, sizeof(aa)); |
| 920 | |
| 921 | aa.sysuserid= &uiret.uid; |
| 922 | aa.sysgroupid= uiret.gid; |
| 923 | aa.homedir=uiret.home.c_str(); |
| 924 | aa.maildir=uiret.maildir.empty() ? 0:uiret.maildir.c_str(); |
| 925 | aa.address=uiret.username.c_str(); |
| 926 | aa.quota=uiret.quota.empty() ? 0:uiret.quota.c_str(); |
| 927 | aa.fullname=uiret.fullname.c_str(); |
| 928 | aa.options=uiret.options.c_str(); |
| 929 | aa.passwd=uiret.cryptpw.empty() ? 0:uiret.cryptpw.c_str(); |
| 930 | aa.clearpasswd=uiret.clearpw.empty() ? 0:uiret.clearpw.c_str(); |
| 931 | |
| 932 | return ((*callback)(&aa, arg)); |
| 933 | } |
| 934 | |
| 935 | #if 0 |
| 936 | { |
| 937 | #endif |
| 938 | }; |