| d9898ee8 |
1 | /* |
| 2 | ** Copyright 2000-2005 Double Precision, Inc. See COPYING for |
| 3 | ** distribution information. |
| 4 | */ |
| 5 | |
| 6 | #include <stdio.h> |
| 7 | #include <stdlib.h> |
| 8 | #include <string.h> |
| 9 | #include <unistd.h> |
| 10 | #include <ctype.h> |
| 11 | #include <sys/types.h> |
| 12 | #include <sys/stat.h> |
| 13 | #include <mysql.h> |
| 14 | #include <time.h> |
| 15 | |
| 16 | #include "authmysql.h" |
| 17 | #include "authmysqlrc.h" |
| 18 | #include "auth.h" |
| 19 | #include "courierauthdebug.h" |
| 20 | |
| 21 | #define err courier_auth_err |
| 22 | |
| 23 | /* siefca@pld.org.pl */ |
| 24 | #define MAX_SUBSTITUTION_LEN 32 |
| 25 | #define SV_BEGIN_MARK "$(" |
| 26 | #define SV_END_MARK ")" |
| 27 | #define SV_BEGIN_LEN ((sizeof(SV_BEGIN_MARK))-1) |
| 28 | #define SV_END_LEN ((sizeof(SV_END_MARK))-1) |
| 29 | |
| 64ff59ba |
30 | static const char rcsid[]="$Id: authmysqllib.c,v 1.45 2007/10/07 02:50:45 mrsam Exp $"; |
| d9898ee8 |
31 | |
| 32 | /* siefca@pld.org.pl */ |
| 33 | struct var_data { |
| 34 | const char *name; |
| 35 | const char *value; |
| 36 | const size_t size; |
| 37 | size_t value_length; |
| 38 | } ; |
| 39 | |
| 40 | /* siefca@pld.org.pl */ |
| 41 | typedef int (*parsefunc)(const char *, size_t, void *); |
| 42 | |
| 43 | static const char *read_env(const char *env) |
| 44 | { |
| 45 | static char *mysqlauth=0; |
| 46 | static size_t mysqlauth_size=0; |
| 47 | size_t i; |
| 48 | char *p=0; |
| 49 | int l=strlen(env); |
| 50 | |
| 51 | if (!mysqlauth) |
| 52 | { |
| 53 | FILE *f=fopen(AUTHMYSQLRC, "r"); |
| 54 | struct stat buf; |
| 55 | |
| 56 | if (!f) return (0); |
| 57 | if (fstat(fileno(f), &buf) || |
| 58 | (mysqlauth=malloc(buf.st_size+2)) == 0) |
| 59 | { |
| 60 | fclose(f); |
| 61 | return (0); |
| 62 | } |
| 63 | if (fread(mysqlauth, buf.st_size, 1, f) != 1) |
| 64 | { |
| 65 | free(mysqlauth); |
| 66 | mysqlauth=0; |
| 67 | fclose(f); |
| 68 | return (0); |
| 69 | } |
| 70 | mysqlauth[mysqlauth_size=buf.st_size]=0; |
| 71 | |
| 72 | for (i=0; i<mysqlauth_size; i++) |
| 73 | if (mysqlauth[i] == '\n') |
| 74 | { /* siefca@pld.org.pl */ |
| 75 | if (!i || mysqlauth[i-1] != '\\') |
| 76 | { |
| 77 | mysqlauth[i]='\0'; |
| 78 | } |
| 79 | else |
| 80 | { |
| 81 | mysqlauth[i]=mysqlauth[i-1]= ' '; |
| 82 | } |
| 83 | } |
| 84 | fclose(f); |
| 85 | } |
| 86 | |
| 87 | for (i=0; i<mysqlauth_size; ) |
| 88 | { |
| 89 | p=mysqlauth+i; |
| 90 | if (memcmp(p, env, l) == 0 && |
| 91 | isspace((int)(unsigned char)p[l])) |
| 92 | { |
| 93 | p += l; |
| 94 | while (*p && *p != '\n' && |
| 95 | isspace((int)(unsigned char)*p)) |
| 96 | ++p; |
| 97 | break; |
| 98 | } |
| 99 | |
| 100 | while (i < mysqlauth_size) |
| 101 | if (mysqlauth[i++] == 0) break; |
| 102 | } |
| 103 | |
| 104 | if (i < mysqlauth_size) |
| 105 | return (p); |
| 106 | return (0); |
| 107 | } |
| 108 | |
| 109 | static MYSQL mysql_buf; |
| 110 | |
| 111 | static MYSQL *mysql=0; |
| 112 | |
| 113 | static int do_connect() |
| 114 | { |
| 115 | const char *server; |
| 116 | const char *userid; |
| 117 | const char *password; |
| 118 | const char *database; |
| 119 | const char *server_socket=0; |
| 120 | unsigned int server_port=0; |
| 121 | unsigned int server_opt=0; |
| 122 | const char *p; |
| 123 | |
| 124 | const char *sslkey; |
| 125 | const char *sslcert; |
| 126 | const char *sslcacert; |
| 127 | const char *sslcapath; |
| 128 | const char *sslcipher; |
| 129 | unsigned int use_ssl=0; |
| 130 | |
| 131 | /* |
| 132 | ** Periodically detect dead connections. |
| 133 | */ |
| 134 | if (mysql) |
| 135 | { |
| 136 | static time_t last_time=0; |
| 137 | time_t t_check; |
| 138 | |
| 139 | time(&t_check); |
| 140 | |
| 141 | if (t_check < last_time) |
| 142 | last_time=t_check; /* System clock changed */ |
| 143 | |
| 144 | if (t_check < last_time + 60) |
| 145 | return (0); |
| 146 | |
| 147 | last_time=t_check; |
| 148 | |
| 149 | if (mysql_ping(mysql) == 0) return (0); |
| 150 | |
| 151 | DPRINTF("authmysqllib: mysql_ping failed, connection lost"); |
| 152 | mysql_close(mysql); |
| 153 | mysql=0; |
| 154 | } |
| 155 | |
| 156 | server=read_env("MYSQL_SERVER"); |
| 157 | userid=read_env("MYSQL_USERNAME"); |
| 158 | password=read_env("MYSQL_PASSWORD"); |
| 159 | database=read_env("MYSQL_DATABASE"); |
| 160 | |
| 161 | #if MYSQL_VERSION_ID >= 32200 |
| 162 | sslkey=read_env("MYSQL_SSL_KEY"); |
| 163 | sslcert=read_env("MYSQL_SSL_CERT"); |
| 164 | sslcacert=read_env("MYSQL_SSL_CACERT"); |
| 165 | sslcapath=read_env("MYSQL_SSL_CAPATH"); |
| 166 | sslcipher=read_env("MYSQL_SSL_CIPHER"); |
| 167 | |
| 168 | if ((sslcert != NULL) && ((sslcacert != NULL) || (sslcapath != NULL))) |
| 169 | { |
| 170 | use_ssl=1; |
| 171 | } |
| 172 | #endif |
| 173 | |
| 174 | server_socket=(char *) read_env("MYSQL_SOCKET"); |
| 175 | |
| 176 | if ((p=read_env("MYSQL_PORT")) != 0) |
| 177 | { |
| 178 | server_port=(unsigned int) atoi(p); |
| 179 | } |
| 180 | |
| 181 | if ((p=read_env("MYSQL_OPT")) != 0) |
| 182 | { |
| 183 | server_opt=(unsigned int) atol(p); |
| 184 | } |
| 185 | |
| 186 | if (!server && !server_socket) |
| 187 | { |
| 188 | err("authmysql: MYSQL_SERVER nor MYSQL_SOCKET set in" |
| 189 | AUTHMYSQLRC "."); |
| 190 | return (-1); |
| 191 | } |
| 192 | |
| 193 | if (!userid) |
| 194 | { |
| 195 | err("authmysql: MYSQL_USERNAME not set in " |
| 196 | AUTHMYSQLRC "."); |
| 197 | return (-1); |
| 198 | } |
| 199 | |
| 200 | if (!database) |
| 201 | { |
| 202 | err("authmysql: MYSQL_DATABASE not set in " |
| 203 | AUTHMYSQLRC "."); |
| 204 | return (-1); |
| 205 | } |
| 206 | |
| 207 | #if MYSQL_VERSION_ID >= 32200 |
| 208 | mysql_init(&mysql_buf); |
| 209 | if (use_ssl) |
| 210 | { |
| 211 | mysql_ssl_set(&mysql_buf, sslkey, sslcert, sslcacert, |
| 212 | sslcapath, sslcipher); |
| 213 | } |
| 214 | mysql=mysql_real_connect(&mysql_buf, server, userid, password, |
| 215 | NULL, |
| 216 | server_port, |
| 217 | server_socket, |
| 218 | server_opt); |
| 219 | #else |
| 220 | mysql=mysql_connect(&mysql_buf, server, userid, password); |
| 221 | #endif |
| 222 | if (!mysql) |
| 223 | { |
| 224 | err("failed to connect to mysql server (server=%s, userid=%s): %s", |
| 225 | server ? server : "<null>", |
| 226 | userid ? userid : "<null>", |
| 227 | mysql_error(&mysql_buf)); |
| 228 | return (-1); |
| 229 | } |
| 230 | |
| 231 | if (mysql_select_db(mysql, database)) |
| 232 | { |
| 233 | err("authmysql: mysql_select_db(%s) error: %s", |
| 234 | database, mysql_error(mysql)); |
| 235 | mysql_close(mysql); |
| 236 | mysql=0; |
| 237 | return (-1); |
| 238 | } |
| 239 | return (0); |
| 240 | } |
| 241 | |
| 242 | void auth_mysql_cleanup() |
| 243 | { |
| 244 | if (mysql) |
| 245 | { |
| 246 | mysql_close(mysql); |
| 247 | mysql=0; |
| 248 | } |
| 249 | } |
| 250 | |
| 251 | static struct authmysqluserinfo ui={0, 0, 0, 0, 0, 0, 0, 0}; |
| 252 | |
| 253 | static void initui() |
| 254 | { |
| 255 | |
| 256 | if (ui.username) |
| 257 | free(ui.username); |
| 258 | if (ui.cryptpw) |
| 259 | free(ui.cryptpw); |
| 260 | if (ui.clearpw) |
| 261 | free(ui.clearpw); |
| 262 | if (ui.home) |
| 263 | free(ui.home); |
| 264 | if (ui.maildir) |
| 265 | free(ui.maildir); |
| 266 | if (ui.quota) |
| 267 | free(ui.quota); |
| 268 | if (ui.fullname) |
| 269 | free(ui.fullname); |
| 270 | if (ui.options) |
| 271 | free(ui.options); |
| 272 | memset(&ui, 0, sizeof(ui)); |
| 273 | } |
| 274 | |
| 275 | static void append_username(char *p, const char *username, |
| 276 | const char *defdomain) |
| 277 | { |
| 278 | for (strcpy(p, username); *p; p++) |
| 279 | if (*p == '\'' || *p == '"' || *p == '\\' || |
| 280 | (int)(unsigned char)*p < ' ') |
| 281 | *p=' '; /* No funny business */ |
| 282 | if (strchr(username, '@') == 0 && defdomain && *defdomain) |
| 283 | strcat(strcpy(p, "@"), defdomain); |
| 284 | } |
| 285 | |
| 286 | /* siefca@pld.org.pl */ |
| 287 | static struct var_data *get_variable (const char *begin, size_t len, |
| 288 | struct var_data *vdt) |
| 289 | { |
| 290 | struct var_data *vdp; |
| 291 | |
| 292 | if (!begin || !vdt) /* should never happend */ |
| 293 | { |
| 294 | err("authmysql: critical error while " |
| 295 | "parsing substitution variable"); |
| 296 | return NULL; |
| 297 | } |
| 298 | if (len < 1) |
| 299 | { |
| 300 | err("authmysql: unknown empty substitution " |
| 301 | "variable - aborting"); |
| 302 | return NULL; |
| 303 | } |
| 304 | if (len > MAX_SUBSTITUTION_LEN) |
| 305 | { |
| 306 | err("authmysql: variable name too long " |
| 307 | "while parsing substitution. " |
| 308 | "name begins with " |
| 309 | SV_BEGIN_MARK |
| 310 | "%.*s...", MAX_SUBSTITUTION_LEN, begin); |
| 311 | return NULL; |
| 312 | } |
| 313 | |
| 314 | for (vdp=vdt; vdp->name; vdp++) |
| 315 | if (vdp->size == len+1 && |
| 316 | !strncmp(begin, vdp->name, len)) |
| 317 | { |
| 318 | if (!vdp->value) |
| 319 | vdp->value = ""; |
| 320 | if (!vdp->value_length) /* length cache */ |
| 321 | vdp->value_length = strlen (vdp->value); |
| 322 | return vdp; |
| 323 | } |
| 324 | |
| 325 | err("authmysql: unknown substitution variable " |
| 326 | SV_BEGIN_MARK |
| 327 | "%.*s" |
| 328 | SV_END_MARK |
| 329 | , (int)len, begin); |
| 330 | |
| 331 | return NULL; |
| 332 | } |
| 333 | |
| 334 | /* siefca@pld.org.pl */ |
| 335 | static int ParsePlugin_counter (const char *p, size_t length, void *vp) |
| 336 | { |
| 337 | if (!p || !vp || length < 0) |
| 338 | { |
| 339 | err("authmysql: bad arguments while counting " |
| 340 | "query string"); |
| 341 | return -1; |
| 342 | } |
| 343 | |
| 344 | *((size_t *)vp) += length; |
| 345 | |
| 346 | return 0; |
| 347 | } |
| 348 | |
| 349 | /* siefca@pld.org.pl */ |
| 350 | static int ParsePlugin_builder (const char *p, size_t length, void *vp) |
| 351 | { |
| 352 | char **strptr = (char **) vp; |
| 353 | |
| 354 | if (!p || !vp || length < 0) |
| 355 | { |
| 356 | err("authmysql: bad arguments while building " |
| 357 | "query string"); |
| 358 | return -1; |
| 359 | } |
| 360 | |
| 361 | if (!length) return 0; |
| 362 | memcpy ((void *) *strptr, (void *) p, length); |
| 363 | *strptr += length; |
| 364 | |
| 365 | return 0; |
| 366 | } |
| 367 | |
| 368 | /* siefca@pld.org.pl */ |
| 369 | static int parse_core (const char *source, struct var_data *vdt, |
| 370 | parsefunc outfn, void *result) |
| 371 | { |
| 372 | size_t v_size = 0, |
| 373 | t_size = 0; |
| 374 | const char *p, *q, *e, |
| 375 | *v_begin, *v_end, |
| 376 | *t_begin, *t_end; |
| 377 | struct var_data *v_ptr; |
| 378 | |
| 379 | if (!source) |
| 380 | source = ""; |
| 381 | if (!result) |
| 382 | { |
| 383 | err("authmysql: no memory allocated for result " |
| 384 | "while parser core was invoked"); |
| 385 | return -1; |
| 386 | } |
| 387 | if (!vdt) |
| 388 | { |
| 389 | err("authmysql: no substitution table found " |
| 390 | "while parser core was invoked"); |
| 391 | return -1; |
| 392 | } |
| 393 | |
| 394 | q = source; |
| 395 | while ( (p=strstr(q, SV_BEGIN_MARK)) ) |
| 396 | { |
| 397 | e = strstr (p, SV_END_MARK); |
| 398 | if (!e) |
| 399 | { |
| 400 | err("authmysql: syntax error in " |
| 401 | "substitution " |
| 402 | "- no closing symbol found! " |
| 403 | "bad variable begins with:" |
| 404 | "%.*s...", MAX_SUBSTITUTION_LEN, p); |
| 405 | return -1; |
| 406 | } |
| 407 | |
| 408 | /* |
| 409 | ** |
| 410 | ** __________sometext$(variable_name)_________ |
| 411 | ** | | | | |
| 412 | ** t_begin' t_end' `v_begin `v_end |
| 413 | ** |
| 414 | */ |
| 415 | |
| 416 | v_begin = p+SV_BEGIN_LEN; /* variable field ptr */ |
| 417 | v_end = e-SV_END_LEN; /* variable field last character */ |
| 418 | v_size = v_end-v_begin+1;/* variable field length */ |
| 419 | |
| 420 | t_begin = q; /* text field ptr */ |
| 421 | t_end = p-1; /* text field last character */ |
| 422 | t_size = t_end-t_begin+1;/* text field length */ |
| 423 | |
| 424 | /* work on text */ |
| 425 | if ( (outfn (t_begin, t_size, result)) == -1 ) |
| 426 | return -1; |
| 427 | |
| 428 | /* work on variable */ |
| 429 | v_ptr = get_variable (v_begin, v_size, vdt); |
| 430 | if (!v_ptr) return -1; |
| 431 | |
| 432 | if ( (outfn (v_ptr->value, v_ptr->value_length, result)) == -1 ) |
| 433 | return -1; |
| 434 | |
| 435 | q = e + 1; |
| 436 | } |
| 437 | |
| 438 | /* work on last part of text if any */ |
| 439 | if (*q != '\0') |
| 440 | if ( (outfn (q, strlen(q), result)) == -1 ) |
| 441 | return -1; |
| 442 | |
| 443 | return 0; |
| 444 | } |
| 445 | |
| 446 | /* siefca@pld.org.pl */ |
| 447 | static char *parse_string (const char *source, struct var_data *vdt) |
| 448 | { |
| 449 | struct var_data *vdp = NULL; |
| 450 | char *output_buf = NULL, |
| 451 | *pass_buf = NULL; |
| 452 | size_t buf_size = 2; |
| 453 | |
| 454 | if (source == NULL || *source == '\0' || |
| 455 | vdt == NULL || vdt[0].name == NULL) |
| 456 | { |
| 457 | err("authmysql: source clause is empty " |
| 458 | "- this is critical error"); |
| 459 | return NULL; |
| 460 | } |
| 461 | |
| 462 | /* zero var_data length cache - important! */ |
| 463 | for (vdp=vdt; vdp->name; vdp++) |
| 464 | vdp->value_length = 0; |
| 465 | |
| 466 | |
| 467 | /* phase 1 - count and validate string */ |
| 468 | if ( (parse_core (source, vdt, &ParsePlugin_counter, &buf_size)) != 0) |
| 469 | return NULL; |
| 470 | |
| 471 | /* phase 2 - allocate memory */ |
| 472 | output_buf = malloc (buf_size); |
| 473 | if (!output_buf) |
| 474 | { |
| 475 | perror ("malloc"); |
| 476 | return NULL; |
| 477 | } |
| 478 | pass_buf = output_buf; |
| 479 | |
| 480 | /* phase 3 - build the output string */ |
| 481 | if ( (parse_core (source, vdt, &ParsePlugin_builder, &pass_buf)) != 0) |
| 482 | { |
| 483 | free (output_buf); |
| 484 | return NULL; |
| 485 | } |
| 486 | *pass_buf = '\0'; |
| 487 | |
| 488 | return output_buf; |
| 489 | } |
| 490 | |
| 491 | /* siefca@pld.org.pl */ |
| 492 | static const char *get_localpart (const char *username) |
| 493 | { |
| 494 | size_t lbuf = 0; |
| 495 | const char *l_end, *p; |
| 496 | char *q; |
| 497 | static char localpart_buf[130]; |
| 498 | |
| 499 | if (!username || *username == '\0') return NULL; |
| 500 | |
| 501 | p = strchr(username,'@'); |
| 502 | if (p) |
| 503 | { |
| 504 | if ((p-username) > 128) |
| 505 | return NULL; |
| 506 | l_end = p; |
| 507 | } |
| 508 | else |
| 509 | { |
| 510 | if ((lbuf = strlen(username)) > 128) |
| 511 | return NULL; |
| 512 | l_end = username + lbuf; |
| 513 | } |
| 514 | |
| 515 | p=username; |
| 516 | q=localpart_buf; |
| 517 | |
| 518 | while (*p && p != l_end) |
| 519 | if (*p == '\"' || *p == '\\' || |
| 520 | *p == '\'' || (int)(unsigned char)*p < ' ') |
| 521 | p++; |
| 522 | else |
| 523 | *q++ = *p++; |
| 524 | |
| 525 | *q = '\0'; |
| 526 | return localpart_buf; |
| 527 | } |
| 528 | |
| 529 | /* siefca@pld.org.pl */ |
| 530 | static const char *get_domain (const char *username, const char *defdomain) |
| 531 | { |
| 532 | static char domain_buf[260]; |
| 533 | const char *p; |
| 534 | char *q; |
| 535 | |
| 536 | if (!username || *username == '\0') return NULL; |
| 537 | p = strchr(username,'@'); |
| 538 | |
| 539 | if (!p || *(p+1) == '\0') |
| 540 | { |
| 541 | if (defdomain && *defdomain) |
| 542 | return defdomain; |
| 543 | else |
| 544 | return NULL; |
| 545 | } |
| 546 | |
| 547 | p++; |
| 548 | if ((strlen(p)) > 256) |
| 549 | return NULL; |
| 550 | |
| 551 | q = domain_buf; |
| 552 | while (*p) |
| 553 | if (*p == '\"' || *p == '\\' || |
| 554 | *p == '\'' || (int)(unsigned char)*p < ' ') |
| 555 | p++; |
| 556 | else |
| 557 | *q++ = *p++; |
| 558 | |
| 559 | *q = '\0'; |
| 560 | return domain_buf; |
| 561 | } |
| 562 | |
| 563 | /* siefca@pld.org.pl */ |
| 564 | |
| 565 | static const char *validateMyPassword (const char *password) |
| 566 | { |
| 567 | static char pass_buf[2][540]; /* Use two buffers, see parse_chpass_clause */ |
| 568 | static int next_pass=0; |
| 569 | const char *p; |
| 570 | char *q, *endq; |
| 571 | |
| 572 | if (!password || *password == '\0' || (strlen(password)) > 256) |
| 573 | return NULL; |
| 574 | |
| 575 | next_pass= 1-next_pass; |
| 576 | |
| 577 | p = password; |
| 578 | q = pass_buf[next_pass]; |
| 579 | endq = q + sizeof pass_buf[next_pass]; |
| 580 | |
| 581 | while (*p && q < endq) |
| 582 | { |
| 583 | if (*p == '\"' || *p == '\\' || *p == '\'') |
| 584 | *q++ = '\\'; |
| 585 | *q++ = *p++; |
| 586 | } |
| 587 | |
| 588 | if (q >= endq) |
| 589 | return NULL; |
| 590 | |
| 591 | *q = '\0'; |
| 592 | return pass_buf[next_pass]; |
| 593 | } |
| 594 | |
| 595 | /* siefca@pld.org.pl */ |
| 596 | static char *parse_select_clause (const char *clause, const char *username, |
| 597 | const char *defdomain, |
| 598 | const char *service) |
| 599 | { |
| 600 | static struct var_data vd[]={ |
| 601 | {"local_part", NULL, sizeof("local_part"), 0}, |
| 602 | {"domain", NULL, sizeof("domain"), 0}, |
| 603 | {"service", NULL, sizeof("service"), 0}, |
| 604 | {NULL, NULL, 0, 0}}; |
| 605 | |
| 606 | if (clause == NULL || *clause == '\0' || |
| 607 | !username || *username == '\0') |
| 608 | return NULL; |
| 609 | |
| 610 | vd[0].value = get_localpart (username); |
| 611 | vd[1].value = get_domain (username, defdomain); |
| 612 | if (!vd[0].value || !vd[1].value) |
| 613 | return NULL; |
| 614 | vd[2].value = service; |
| 615 | |
| 616 | return (parse_string (clause, vd)); |
| 617 | } |
| 618 | |
| 619 | /* siefca@pld.org.pl */ |
| 620 | static char *parse_chpass_clause (const char *clause, const char *username, |
| 621 | const char *defdomain, const char *newpass, |
| 622 | const char *newpass_crypt) |
| 623 | { |
| 624 | static struct var_data vd[]={ |
| 625 | {"local_part", NULL, sizeof("local_part"), 0}, |
| 626 | {"domain", NULL, sizeof("domain"), 0}, |
| 627 | {"newpass", NULL, sizeof("newpass"), 0}, |
| 628 | {"newpass_crypt", NULL, sizeof("newpass_crypt"), 0}, |
| 629 | {NULL, NULL, 0, 0}}; |
| 630 | |
| 631 | if (clause == NULL || *clause == '\0' || |
| 632 | !username || *username == '\0' || |
| 633 | !newpass || *newpass == '\0' || |
| 634 | !newpass_crypt || *newpass_crypt == '\0') return NULL; |
| 635 | |
| 636 | vd[0].value = get_localpart (username); |
| 637 | vd[1].value = get_domain (username, defdomain); |
| 638 | vd[2].value = validateMyPassword (newpass); |
| 639 | vd[3].value = validateMyPassword (newpass_crypt); |
| 640 | |
| 641 | if (!vd[0].value || !vd[1].value || |
| 642 | !vd[2].value || !vd[3].value) return NULL; |
| 643 | |
| 644 | return (parse_string (clause, vd)); |
| 645 | } |
| 646 | |
| 647 | struct authmysqluserinfo *auth_mysql_getuserinfo(const char *username, |
| 648 | const char *service) |
| 649 | { |
| 650 | const char *defdomain =NULL; |
| 651 | char *querybuf, *p; |
| 652 | MYSQL_ROW row; |
| 653 | MYSQL_RES *result; |
| 654 | int num_fields; |
| 655 | char *endp; |
| 656 | |
| 657 | const char *select_clause; /* siefca@pld.org.pl */ |
| 658 | |
| 659 | static const char query[]= |
| 660 | "SELECT %s, %s, %s, %s, %s, %s, %s, %s, %s, %s FROM %s WHERE %s = \""; |
| 661 | |
| 662 | if (do_connect()) return (0); |
| 663 | |
| 664 | initui(); |
| 665 | |
| 666 | select_clause=read_env("MYSQL_SELECT_CLAUSE"); |
| 667 | defdomain=read_env("DEFAULT_DOMAIN"); |
| 668 | if (!defdomain) defdomain=""; |
| 669 | |
| 670 | if (!select_clause) /* siefca@pld.org.pl */ |
| 671 | { |
| 672 | const char *user_table, |
| 673 | *crypt_field, |
| 674 | *clear_field, |
| 675 | *name_field, |
| 676 | *uid_field, |
| 677 | *gid_field, |
| 678 | *login_field, |
| 679 | *home_field, |
| 680 | *maildir_field, |
| 681 | *quota_field, |
| 682 | *options_field, |
| 683 | *where_clause; |
| 684 | |
| 685 | user_table=read_env("MYSQL_USER_TABLE"); |
| 686 | |
| 687 | if (!user_table) |
| 688 | { |
| 689 | err("authmysql: MYSQL_USER_TABLE not set in " |
| 690 | AUTHMYSQLRC "."); |
| 691 | return (0); |
| 692 | } |
| 693 | |
| 694 | crypt_field=read_env("MYSQL_CRYPT_PWFIELD"); |
| 695 | clear_field=read_env("MYSQL_CLEAR_PWFIELD"); |
| 696 | name_field=read_env("MYSQL_NAME_FIELD"); |
| 697 | |
| 698 | if (!crypt_field && !clear_field) |
| 699 | { |
| 700 | err("authmysql: MYSQL_CRYPT_PWFIELD and " |
| 701 | "MYSQL_CLEAR_PWFIELD not set in " AUTHMYSQLRC "."); |
| 702 | return (0); |
| 703 | } |
| 704 | if (!crypt_field) crypt_field="\"\""; |
| 705 | if (!clear_field) clear_field="\"\""; |
| 706 | if (!name_field) name_field="\"\""; |
| 707 | |
| 708 | uid_field = read_env("MYSQL_UID_FIELD"); |
| 709 | if (!uid_field) uid_field = "uid"; |
| 710 | |
| 711 | gid_field = read_env("MYSQL_GID_FIELD"); |
| 712 | if (!gid_field) gid_field = "gid"; |
| 713 | |
| 714 | login_field = read_env("MYSQL_LOGIN_FIELD"); |
| 715 | if (!login_field) login_field = "id"; |
| 716 | |
| 717 | home_field = read_env("MYSQL_HOME_FIELD"); |
| 718 | if (!home_field) home_field = "home"; |
| 719 | |
| 720 | maildir_field=read_env(service && strcmp(service, "courier")==0 |
| 721 | ? "MYSQL_DEFAULTDELIVERY" |
| 722 | : "MYSQL_MAILDIR_FIELD"); |
| 723 | if (!maildir_field) maildir_field="\"\""; |
| 724 | |
| 725 | quota_field=read_env("MYSQL_QUOTA_FIELD"); |
| 726 | if (!quota_field) quota_field="\"\""; |
| 727 | |
| 728 | options_field=read_env("MYSQL_AUXOPTIONS_FIELD"); |
| 729 | if (!options_field) options_field="\"\""; |
| 730 | |
| 731 | where_clause=read_env("MYSQL_WHERE_CLAUSE"); |
| 732 | if (!where_clause) where_clause = ""; |
| 733 | |
| 734 | querybuf=malloc(sizeof(query) + 100 |
| 735 | + 2 * strlen(login_field) |
| 736 | + strlen(crypt_field) |
| 737 | + strlen(clear_field) |
| 738 | + strlen(uid_field) + strlen(gid_field) |
| 739 | + strlen(home_field) |
| 740 | + strlen(maildir_field) |
| 741 | + strlen(quota_field) |
| 742 | + strlen(name_field) |
| 743 | + strlen(options_field) |
| 744 | + strlen(user_table) |
| 745 | + strlen(username) |
| 746 | + strlen(defdomain) |
| 747 | + strlen(where_clause)); |
| 748 | |
| 749 | if (!querybuf) |
| 750 | { |
| 751 | perror("malloc"); |
| 752 | return (0); |
| 753 | } |
| 754 | |
| 755 | sprintf(querybuf, query, login_field, crypt_field, clear_field, |
| 756 | uid_field, gid_field, home_field, maildir_field, quota_field, |
| 757 | name_field, options_field, user_table, login_field); |
| 758 | |
| 759 | p=querybuf+strlen(querybuf); |
| 760 | |
| 761 | append_username(p, username, defdomain); |
| 762 | strcat(p, "\""); |
| 763 | |
| 764 | if (strcmp(where_clause, "")) { |
| 765 | strcat(p, " AND ("); |
| 766 | strcat(p, where_clause); |
| 767 | strcat(p, ")"); |
| 768 | } |
| 769 | } |
| 770 | else |
| 771 | { |
| 772 | /* siefca@pld.org.pl */ |
| 773 | querybuf=parse_select_clause (select_clause, username, |
| 774 | defdomain, service); |
| 775 | if (!querybuf) |
| 776 | { |
| 777 | DPRINTF("parse_select_clause failed (DEFAULT_DOMAIN not set?)"); |
| 778 | return 0; |
| 779 | } |
| 780 | } |
| 781 | |
| 64ff59ba |
782 | /* Anton Dobkin <anton@viansib.ru>, VIAN, Ltd. */ |
| 783 | #if MYSQL_VERSION_ID >= 41000 |
| 784 | const char *character_set=read_env("MYSQL_CHARACTER_SET"); |
| 785 | |
| 786 | if(character_set){ |
| 787 | |
| 788 | char *character_set_buf; |
| 789 | |
| 790 | character_set_buf=malloc(strlen(character_set)+11); |
| 791 | |
| 792 | if (!character_set_buf) |
| 793 | { |
| 794 | perror("malloc"); |
| 795 | return (0); |
| 796 | } |
| 797 | |
| 798 | strcpy(character_set_buf, "SET NAMES "); |
| 799 | strcat(character_set_buf, character_set); |
| 800 | |
| 801 | DPRINTF("Install of a character set for MySQL. SQL query: SET NAMES %s", character_set); |
| 802 | |
| 803 | if(mysql_query (mysql, character_set_buf)) |
| 804 | { |
| 805 | err("Install of a character set for MySQL is failed: %s MYSQL_CHARACTER_SET: may be invalid character set", mysql_error(mysql)); |
| 806 | auth_mysql_cleanup(); |
| 807 | |
| 808 | if (do_connect()) |
| 809 | { |
| 810 | free(character_set_buf); |
| 811 | return (0); |
| 812 | } |
| 813 | } |
| 814 | |
| 815 | free(character_set_buf); |
| 816 | } |
| 817 | #endif |
| 818 | |
| d9898ee8 |
819 | DPRINTF("SQL query: %s", querybuf); |
| 820 | if (mysql_query (mysql, querybuf)) |
| 821 | { |
| 822 | /* <o.blasnik@nextra.de> */ |
| 823 | |
| 824 | DPRINTF("mysql_query failed, reconnecting: %s", mysql_error(mysql)); |
| 825 | auth_mysql_cleanup(); |
| 826 | |
| 827 | if (do_connect()) |
| 828 | { |
| 829 | free(querybuf); |
| 830 | return (0); |
| 831 | } |
| 832 | |
| 833 | if (mysql_query (mysql, querybuf)) |
| 834 | { |
| 835 | DPRINTF("mysql_query failed second time, giving up: %s", mysql_error(mysql)); |
| 836 | free(querybuf); |
| 837 | auth_mysql_cleanup(); |
| 838 | /* Server went down, that's OK, |
| 839 | ** try again next time. |
| 840 | */ |
| 841 | return (0); |
| 842 | } |
| 843 | } |
| 844 | free(querybuf); |
| 845 | |
| 846 | result = mysql_store_result (mysql); |
| 847 | if (result) |
| 848 | { |
| 849 | if (mysql_num_rows(result)) |
| 850 | { |
| 851 | row = mysql_fetch_row (result); |
| 852 | num_fields = mysql_num_fields (result); |
| 853 | |
| 854 | if (num_fields < 6) |
| 855 | { |
| 856 | DPRINTF("incomplete row, only %d fields returned", |
| 857 | num_fields); |
| 858 | mysql_free_result(result); |
| 859 | return(0); |
| 860 | } |
| 861 | |
| 862 | if (row[0] && row[0][0]) |
| 863 | ui.username=strdup(row[0]); |
| 864 | if (row[1] && row[1][0]) |
| 865 | ui.cryptpw=strdup(row[1]); |
| 866 | if (row[2] && row[2][0]) |
| 867 | ui.clearpw=strdup(row[2]); |
| 868 | /* perhaps authmysql needs a glob_uid/glob_gid feature |
| 869 | like authldap? */ |
| 870 | if (!row[3] || !row[3][0] || |
| 871 | (ui.uid=strtol(row[3], &endp, 10), endp[0] != '\0')) |
| 872 | { |
| 873 | DPRINTF("invalid value for uid: '%s'", |
| 874 | row[3] ? row[3] : "<null>"); |
| 875 | mysql_free_result(result); |
| 876 | return 0; |
| 877 | } |
| 878 | if (!row[4] || !row[4][0] || |
| 879 | (ui.gid=strtol(row[4], &endp, 10), endp[0] != '\0')) |
| 880 | { |
| 881 | DPRINTF("invalid value for gid: '%s'", |
| 882 | row[4] ? row[4] : "<null>"); |
| 883 | mysql_free_result(result); |
| 884 | return 0; |
| 885 | } |
| 886 | if (row[5] && row[5][0]) |
| 887 | ui.home=strdup(row[5]); |
| 888 | else |
| 889 | { |
| 890 | DPRINTF("required value for 'home' (column 6) is missing"); |
| 891 | mysql_free_result(result); |
| 892 | return(0); |
| 893 | } |
| 894 | if (num_fields > 6 && row[6] && row[6][0]) |
| 895 | ui.maildir=strdup(row[6]); |
| 896 | if (num_fields > 7 && row[7] && row[7][0]) |
| 897 | ui.quota=strdup(row[7]); |
| 898 | if (num_fields > 8 && row[8] && row[8][0]) |
| 899 | ui.fullname=strdup(row[8]); |
| 900 | if (num_fields > 9 && row[9] && row[9][0]) |
| 901 | ui.options=strdup(row[9]); |
| 902 | } |
| 903 | else |
| 904 | { |
| 905 | DPRINTF("zero rows returned"); |
| 906 | mysql_free_result(result); |
| 907 | return (&ui); /* User not found */ |
| 908 | } |
| 909 | } |
| 910 | else |
| 911 | { |
| 912 | DPRINTF("mysql_store_result failed"); |
| 913 | return (0); |
| 914 | } |
| 915 | mysql_free_result(result); |
| 916 | return (&ui); |
| 917 | } |
| 918 | |
| 919 | int auth_mysql_setpass(const char *user, const char *pass, |
| 920 | const char *oldpass) |
| 921 | { |
| 922 | char *newpass_crypt; |
| 923 | const char *p; |
| 924 | int l; |
| 925 | char *sql_buf; |
| 926 | const char *comma; |
| 927 | int rc=0; |
| 928 | |
| 929 | const char *clear_field =NULL, |
| 930 | *crypt_field =NULL, |
| 931 | *defdomain =NULL, |
| 932 | *where_clause =NULL, |
| 933 | *user_table =NULL, |
| 934 | *login_field =NULL, |
| 935 | *chpass_clause =NULL; /* siefca@pld.org.pl */ |
| 936 | |
| 937 | if (!mysql) |
| 938 | return (-1); |
| 939 | |
| 940 | |
| 941 | if (!(newpass_crypt=authcryptpasswd(pass, oldpass))) |
| 942 | return (-1); |
| 943 | |
| 944 | for (l=0, p=pass; *p; p++) |
| 945 | { |
| 946 | if ((int)(unsigned char)*p < ' ') |
| 947 | { |
| 948 | free(newpass_crypt); |
| 949 | return (-1); |
| 950 | } |
| 951 | if (*p == '"' || *p == '\\') |
| 952 | ++l; |
| 953 | ++l; |
| 954 | } |
| 955 | |
| 956 | /* siefca@pld.org.pl */ |
| 957 | chpass_clause=read_env("MYSQL_CHPASS_CLAUSE"); |
| 958 | defdomain=read_env("DEFAULT_DOMAIN"); |
| 959 | user_table=read_env("MYSQL_USER_TABLE"); |
| 960 | if (!chpass_clause) |
| 961 | { |
| 962 | login_field = read_env("MYSQL_LOGIN_FIELD"); |
| 963 | if (!login_field) login_field = "id"; |
| 964 | crypt_field=read_env("MYSQL_CRYPT_PWFIELD"); |
| 965 | clear_field=read_env("MYSQL_CLEAR_PWFIELD"); |
| 966 | where_clause=read_env("MYSQL_WHERE_CLAUSE"); |
| 967 | sql_buf=malloc(strlen(crypt_field ? crypt_field:"") |
| 968 | + strlen(clear_field ? clear_field:"") |
| 969 | + strlen(defdomain ? defdomain:"") |
| 970 | + strlen(login_field) + l + strlen(newpass_crypt) |
| 971 | + strlen(user_table) |
| 972 | + strlen(where_clause ? where_clause:"") |
| 973 | + 200); |
| 974 | } |
| 975 | else |
| 976 | { |
| 977 | sql_buf=parse_chpass_clause(chpass_clause, |
| 978 | user, |
| 979 | defdomain, |
| 980 | pass, |
| 981 | newpass_crypt); |
| 982 | } |
| 983 | |
| 984 | |
| 985 | if (!sql_buf) |
| 986 | { |
| 987 | free(newpass_crypt); |
| 988 | return (-1); |
| 989 | } |
| 990 | |
| 991 | if (!chpass_clause) /*siefca@pld.org.pl */ |
| 992 | { |
| 993 | sprintf(sql_buf, "UPDATE %s SET", user_table); |
| 994 | |
| 995 | comma=""; |
| 996 | |
| 997 | if (clear_field && *clear_field) |
| 998 | { |
| 999 | char *q; |
| 1000 | |
| 1001 | strcat(strcat(strcat(sql_buf, " "), clear_field), |
| 1002 | "=\""); |
| 1003 | |
| 1004 | q=sql_buf+strlen(sql_buf); |
| 1005 | while (*pass) |
| 1006 | { |
| 1007 | if (*pass == '"' || *pass == '\\') |
| 1008 | *q++= '\\'; |
| 1009 | *q++ = *pass++; |
| 1010 | } |
| 1011 | strcpy(q, "\""); |
| 1012 | comma=", "; |
| 1013 | } |
| 1014 | |
| 1015 | if (crypt_field && *crypt_field) |
| 1016 | { |
| 1017 | strcat(strcat(strcat(strcat(strcat(strcat(sql_buf, comma), |
| 1018 | " "), |
| 1019 | crypt_field), |
| 1020 | "=\""), |
| 1021 | newpass_crypt), |
| 1022 | "\""); |
| 1023 | } |
| 1024 | free(newpass_crypt); |
| 1025 | |
| 1026 | strcat(strcat(strcat(sql_buf, " WHERE "), |
| 1027 | login_field), |
| 1028 | "=\""); |
| 1029 | |
| 1030 | append_username(sql_buf+strlen(sql_buf), user, defdomain); |
| 1031 | |
| 1032 | strcat(sql_buf, "\""); |
| 1033 | |
| 1034 | if (where_clause && *where_clause) |
| 1035 | { |
| 1036 | strcat(sql_buf, " AND ("); |
| 1037 | strcat(sql_buf, where_clause); |
| 1038 | strcat(sql_buf, ")"); |
| 1039 | } |
| 1040 | |
| 1041 | } |
| 1042 | else |
| 1043 | { |
| 1044 | free(newpass_crypt); |
| 1045 | } |
| 1046 | |
| 1047 | |
| 1048 | if (courier_authdebug_login_level >= 2) |
| 1049 | { |
| 1050 | DPRINTF("setpass SQL: %s", sql_buf); |
| 1051 | } |
| 1052 | if (mysql_query (mysql, sql_buf)) |
| 1053 | { |
| 1054 | DPRINTF("setpass SQL failed"); |
| 1055 | rc= -1; |
| 1056 | auth_mysql_cleanup(); |
| 1057 | } |
| 1058 | free(sql_buf); |
| 1059 | return (rc); |
| 1060 | } |
| 1061 | |
| 1062 | void auth_mysql_enumerate( void(*cb_func)(const char *name, |
| 1063 | uid_t uid, |
| 1064 | gid_t gid, |
| 1065 | const char *homedir, |
| 1066 | const char *maildir, |
| 1067 | const char *options, |
| 1068 | void *void_arg), |
| 1069 | void *void_arg) |
| 1070 | { |
| 1071 | const char *defdomain, *select_clause; |
| 1072 | char *querybuf, *p; |
| 1073 | MYSQL_ROW row; |
| 1074 | MYSQL_RES *result; |
| 1075 | |
| 1076 | static const char query[]= |
| 1077 | "SELECT %s, %s, %s, %s, %s, %s FROM %s WHERE 1=1"; |
| 1078 | |
| 1079 | if (do_connect()) return; |
| 1080 | |
| 1081 | initui(); |
| 1082 | |
| 1083 | select_clause=read_env("MYSQL_ENUMERATE_CLAUSE"); |
| 1084 | defdomain=read_env("DEFAULT_DOMAIN"); |
| 1085 | if (!defdomain || !defdomain[0]) |
| 1086 | defdomain="*"; /* otherwise parse_select_clause fails */ |
| 1087 | |
| 1088 | if (!select_clause) |
| 1089 | { |
| 1090 | const char *user_table, |
| 1091 | *uid_field, |
| 1092 | *gid_field, |
| 1093 | *login_field, |
| 1094 | *home_field, |
| 1095 | *maildir_field, |
| 1096 | *options_field, |
| 1097 | *where_clause; |
| 1098 | |
| 1099 | user_table=read_env("MYSQL_USER_TABLE"); |
| 1100 | |
| 1101 | if (!user_table) |
| 1102 | { |
| 1103 | err("authmysql: MYSQL_USER_TABLE not set in " |
| 1104 | AUTHMYSQLRC "."); |
| 1105 | return; |
| 1106 | } |
| 1107 | |
| 1108 | uid_field = read_env("MYSQL_UID_FIELD"); |
| 1109 | if (!uid_field) uid_field = "uid"; |
| 1110 | |
| 1111 | gid_field = read_env("MYSQL_GID_FIELD"); |
| 1112 | if (!gid_field) gid_field = "gid"; |
| 1113 | |
| 1114 | login_field = read_env("MYSQL_LOGIN_FIELD"); |
| 1115 | if (!login_field) login_field = "id"; |
| 1116 | |
| 1117 | home_field = read_env("MYSQL_HOME_FIELD"); |
| 1118 | if (!home_field) home_field = "home"; |
| 1119 | |
| 1120 | maildir_field=read_env("MYSQL_MAILDIR_FIELD"); |
| 1121 | if (!maildir_field) maildir_field="\"\""; |
| 1122 | |
| 1123 | options_field=read_env("MYSQL_AUXOPTIONS_FIELD"); |
| 1124 | if (!options_field) options_field="\"\""; |
| 1125 | |
| 1126 | where_clause=read_env("MYSQL_WHERE_CLAUSE"); |
| 1127 | if (!where_clause) where_clause = ""; |
| 1128 | |
| 1129 | querybuf=malloc(sizeof(query) + 100 |
| 1130 | + strlen(login_field) |
| 1131 | + strlen(uid_field) + strlen(gid_field) |
| 1132 | + strlen(home_field) |
| 1133 | + strlen(maildir_field) |
| 1134 | + strlen(options_field) |
| 1135 | + strlen(user_table) |
| 1136 | + strlen(where_clause)); |
| 1137 | |
| 1138 | if (!querybuf) |
| 1139 | { |
| 1140 | perror("malloc"); |
| 1141 | return; |
| 1142 | } |
| 1143 | |
| 1144 | sprintf(querybuf, query, login_field, |
| 1145 | uid_field, gid_field, home_field, maildir_field, |
| 1146 | options_field, user_table); |
| 1147 | |
| 1148 | p=querybuf+strlen(querybuf); |
| 1149 | |
| 1150 | if (strcmp(where_clause, "")) { |
| 1151 | strcat(p, " AND ("); |
| 1152 | strcat(p, where_clause); |
| 1153 | strcat(p, ")"); |
| 1154 | } |
| 1155 | } |
| 1156 | else |
| 1157 | { |
| 1158 | /* siefca@pld.org.pl */ |
| 1159 | querybuf=parse_select_clause (select_clause, "*", |
| 1160 | defdomain, "enumerate"); |
| 1161 | if (!querybuf) |
| 1162 | { |
| 1163 | DPRINTF("authmysql: parse_select_clause failed"); |
| 1164 | return; |
| 1165 | } |
| 1166 | } |
| 1167 | DPRINTF("authmysql: enumerate query: %s", querybuf); |
| 1168 | |
| 1169 | if (mysql_query (mysql, querybuf)) |
| 1170 | { |
| 1171 | DPRINTF("mysql_query failed, reconnecting: %s", mysql_error(mysql)); |
| 1172 | /* <o.blasnik@nextra.de> */ |
| 1173 | |
| 1174 | auth_mysql_cleanup(); |
| 1175 | |
| 1176 | if (do_connect()) |
| 1177 | { |
| 1178 | free(querybuf); |
| 1179 | return; |
| 1180 | } |
| 1181 | |
| 1182 | if (mysql_query (mysql, querybuf)) |
| 1183 | { |
| 1184 | DPRINTF("mysql_query failed second time, giving up: %s", mysql_error(mysql)); |
| 1185 | free(querybuf); |
| 1186 | auth_mysql_cleanup(); |
| 1187 | return; |
| 1188 | } |
| 1189 | } |
| 1190 | free(querybuf); |
| 1191 | |
| 1192 | result = mysql_use_result (mysql); |
| 1193 | if (result) |
| 1194 | { |
| 1195 | const char *username; |
| 1196 | uid_t uid; |
| 1197 | gid_t gid; |
| 1198 | const char *homedir; |
| 1199 | const char *maildir; |
| 1200 | const char *options; |
| 1201 | |
| 1202 | while ((row = mysql_fetch_row (result)) != NULL) |
| 1203 | { |
| 1204 | if(!row[0] || !row[0][0] |
| 1205 | || !row[1] || !row[1][0] |
| 1206 | || !row[2] || !row[2][0] |
| 1207 | || !row[3] || !row[3][0]) |
| 1208 | { |
| 1209 | continue; |
| 1210 | } |
| 1211 | |
| 1212 | username=row[0]; |
| 1213 | uid=atol(row[1]); /* FIXME use strtol to validate */ |
| 1214 | gid=atol(row[2]); |
| 1215 | homedir=row[3]; |
| 1216 | maildir=row[4]; |
| 1217 | options=row[5]; |
| 1218 | |
| 1219 | if (maildir && !*maildir) |
| 1220 | maildir=NULL; |
| 1221 | |
| 1222 | (*cb_func)(username, uid, gid, homedir, |
| 1223 | maildir, options, void_arg); |
| 1224 | } |
| 1225 | } |
| 1226 | /* NULL row could indicate end of result or an error */ |
| 1227 | if (mysql_errno(mysql)) |
| 1228 | { |
| 1229 | DPRINTF("mysql error during enumeration: %s", mysql_error(mysql)); |
| 1230 | } |
| 1231 | else |
| 1232 | (*cb_func)(NULL, 0, 0, NULL, NULL, NULL, void_arg); |
| 1233 | |
| 1234 | if (result) mysql_free_result(result); |
| 1235 | } |
HCoop / hcoop / debian / courier-authlib.git / blame