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1a41acb7 | 1 | /* |
2 | * $Source$ | |
3 | * $Author$ | |
4 | * $Header$ | |
b070f8a1 | 5 | * |
1a41acb7 | 6 | * Copyright (C) 1987, 1988 by the Massachusetts Institute of Technology |
7 | * For copying and distribution information, please see the file | |
8 | * <mit-copyright.h>. | |
9 | * | |
b070f8a1 | 10 | */ |
11 | ||
12 | #ifndef lint | |
048b1b94 | 13 | static char *rcsid_qrtn_dc = "$Header$"; |
b070f8a1 | 14 | #endif lint |
15 | ||
16 | #include <mit-copyright.h> | |
cc0088db | 17 | #include <string.h> |
b070f8a1 | 18 | #include "mr_server.h" |
03c05291 | 19 | #include "query.h" |
048b1b94 | 20 | EXEC SQL INCLUDE sqlca; /* SQL Communications Area */ |
21 | EXEC SQL INCLUDE sqlda; /* SQL Descriptor Area */ | |
22 | #include "qrtn.h" | |
23 | ||
03c05291 | 24 | SQLDA *mr_sqlda; |
048b1b94 | 25 | EXEC SQL BEGIN DECLARE SECTION; |
1741dca0 | 26 | int mr_sig_length; |
048b1b94 | 27 | int idummy; |
28 | char cdummy[MR_CDUMMY_LEN]; | |
29 | char stmt_buf[MR_STMTBUF_LEN]; | |
30 | EXEC SQL END DECLARE SECTION; | |
b070f8a1 | 31 | |
30cf9ed3 | 32 | char *Argv[QMAXARGS]; |
03c05291 | 33 | extern char *table_name[]; |
34 | extern char *sqlbuffer[QMAXARGS]; | |
b070f8a1 | 35 | |
03c05291 | 36 | int dbms_errno = 0; |
b070f8a1 | 37 | int mr_errcode = 0; |
048b1b94 | 38 | EXEC SQL BEGIN DECLARE SECTION; |
39 | int query_timeout = 30; | |
923a939b | 40 | char *database = "moira"; |
048b1b94 | 41 | EXEC SQL END DECLARE SECTION; |
b070f8a1 | 42 | extern char *whoami; |
43 | extern FILE *journal; | |
44 | ||
03c05291 | 45 | int mr_verify_query(client *cl, struct query *q, int argc, char *argv_ro[]); |
68b5b948 | 46 | int do_retrieve(struct query *q, char *pqual, int (*action)(), char *actarg); |
03c05291 | 47 | int do_update(struct query *q, char *argv[], char *qual, |
48 | int (*action)(), char *actarg); | |
49 | int do_append(struct query *q, char *argv[], char *pqual, | |
50 | int (*action)(), char *actarg); | |
51 | int do_delete(struct query *q, char *qual, | |
52 | int (*action)(), char *actarg); | |
60140d51 | 53 | char *build_sql_stmt(char *cmd, char *targetlist, char *argv[], |
54 | int argc, char *qual, char *sort); | |
03c05291 | 55 | |
56 | /* from qvalidate.dc */ | |
57 | int validate_fields(struct query *q, char *argv[], struct valobj *vo, int n); | |
58 | int validate_row(struct query *q, char *argv[], struct validate *v); | |
59 | ||
45bf7573 | 60 | |
048b1b94 | 61 | /* |
03c05291 | 62 | * dbmserr: Called when the DBMS indicates an error. |
b070f8a1 | 63 | */ |
64 | ||
03c05291 | 65 | void dbmserr(void) |
b070f8a1 | 66 | { |
45bf7573 | 67 | EXEC SQL BEGIN DECLARE SECTION; |
68 | char err_msg[256]; | |
69 | EXEC SQL END DECLARE SECTION; | |
03c05291 | 70 | int bufsize=256, msglength=0; |
71 | ||
72 | dbms_errno = -sqlca.sqlcode; | |
73 | mr_errcode = MR_DBMS_ERR; | |
74 | com_err(whoami, MR_DBMS_ERR, " code %d\n", dbms_errno); | |
75 | sqlglm(err_msg, &bufsize, &msglength); | |
76 | err_msg[msglength]=0; | |
77 | com_err(whoami, 0, "SQL error text = %s", err_msg); | |
78 | critical_alert("MOIRA", "Moira server encountered DBMS ERROR %d\n%s", | |
79 | dbms_errno, err_msg); | |
b070f8a1 | 80 | } |
81 | ||
45bf7573 | 82 | /* This is declarative, not executed. Applies from here on, in this file. */ |
03c05291 | 83 | EXEC SQL WHENEVER SQLERROR DO dbmserr(); |
048b1b94 | 84 | |
03c05291 | 85 | int mr_open_database(void) |
b070f8a1 | 86 | { |
87 | register int i; | |
03c05291 | 88 | SQLDA *mr_alloc_sqlda(); |
b070f8a1 | 89 | static first_open = 1; |
90 | ||
91 | if (first_open) { | |
92 | first_open = 0; | |
93 | ||
94 | /* initialize local argv */ | |
95 | for (i = 0; i < 16; i++) | |
96 | Argv[i] = malloc(ARGLEN); | |
97 | ||
03c05291 | 98 | mr_sqlda = mr_alloc_sqlda(); |
c9a214e4 | 99 | |
b070f8a1 | 100 | incremental_init(); |
101 | flush_cache(); | |
102 | } | |
103 | ||
03c05291 | 104 | dbms_errno = 0; |
b070f8a1 | 105 | mr_errcode = 0; |
106 | ||
107 | /* open the database */ | |
03c05291 | 108 | EXEC SQL CONNECT :database IDENTIFIED BY :database; |
109 | ||
110 | if(dbms_errno) | |
1741dca0 | 111 | return(mr_errcode); |
112 | ||
03c05291 | 113 | EXEC SQL SELECT data_length INTO :mr_sig_length FROM user_tab_columns WHERE table_name='USERS' and column_name='SIGNATURE'; |
3e6ff9e4 | 114 | EXEC SQL COMMIT WORK; |
03c05291 | 115 | if(dbms_errno) |
1741dca0 | 116 | return(mr_errcode); |
117 | ||
118 | return(MR_SUCCESS); | |
b070f8a1 | 119 | } |
120 | ||
03c05291 | 121 | void mr_close_database(void) |
b070f8a1 | 122 | { |
123 | flush_cache(); | |
03c05291 | 124 | EXEC SQL COMMIT RELEASE; |
b070f8a1 | 125 | } |
126 | ||
03c05291 | 127 | int mr_check_access(cl, name, argc, argv_ro) |
128 | client *cl; | |
129 | char *name, *argv_ro[]; | |
130 | int argc; | |
b070f8a1 | 131 | { |
132 | struct query *q; | |
b070f8a1 | 133 | |
03c05291 | 134 | dbms_errno = 0; |
b070f8a1 | 135 | mr_errcode = 0; |
136 | ||
137 | q = get_query_by_name(name, cl->args->mr_version_no); | |
138 | if (q == (struct query *)0) | |
139 | return(MR_NO_HANDLE); | |
140 | ||
048b1b94 | 141 | return(mr_verify_query(cl, q, argc, argv_ro)); |
b070f8a1 | 142 | } |
143 | ||
03c05291 | 144 | int mr_process_query(cl, name, argc, argv_ro, action, actarg) |
145 | client *cl; | |
146 | char *name, *argv_ro[], *actarg; | |
147 | int argc, (*action)(); | |
b070f8a1 | 148 | { |
149 | register struct query *q; | |
150 | register int status; | |
151 | register struct validate *v; | |
60140d51 | 152 | char *qual = NULL; |
048b1b94 | 153 | EXEC SQL BEGIN DECLARE SECTION; |
03c05291 | 154 | char *table; |
048b1b94 | 155 | EXEC SQL END DECLARE SECTION; |
b070f8a1 | 156 | struct save_queue *sq; |
b070f8a1 | 157 | |
03c05291 | 158 | dbms_errno = 0; |
b070f8a1 | 159 | mr_errcode = 0; |
160 | ||
161 | /* list queries command */ | |
162 | if (!strcmp(name, "_list_queries")) { | |
163 | list_queries(cl->args->mr_version_no, action, actarg); | |
164 | return(MR_SUCCESS); | |
165 | } | |
166 | ||
167 | /* help query command */ | |
168 | if (!strcmp(name, "_help")) { | |
169 | if (argc < 1) | |
170 | return(MR_ARGS); | |
171 | q = get_query_by_name(argv_ro[0], cl->args->mr_version_no); | |
172 | if (q == (struct query *)0) return(MR_NO_HANDLE); | |
173 | help_query(q, action, actarg); | |
174 | return(MR_SUCCESS); | |
175 | } | |
176 | ||
177 | /* get query structure, return error if named query does not exist */ | |
178 | q = get_query_by_name(name, cl->args->mr_version_no); | |
179 | if (q == (struct query *)0) return(MR_NO_HANDLE); | |
180 | v = q->validate; | |
181 | ||
182 | /* setup argument vector, verify access and arguments */ | |
183 | if ((status = mr_verify_query(cl, q, argc, argv_ro)) != MR_SUCCESS) | |
184 | goto out; | |
185 | ||
186 | /* perform any special query pre-processing */ | |
187 | if (v && v->pre_rtn) { | |
188 | status = (*v->pre_rtn)(q, Argv, cl, 0); | |
189 | if (status != MR_SUCCESS) | |
190 | goto out; | |
191 | } | |
192 | ||
193 | switch (q->type) { | |
194 | case RETRIEVE: | |
195 | /* for queries that do not permit wildcarding, check if row | |
196 | uniquely exists */ | |
197 | if (v && v->field) { | |
048b1b94 | 198 | status = validate_row(q, Argv, v); |
b070f8a1 | 199 | if (status != MR_EXISTS) break; |
200 | } | |
201 | ||
b070f8a1 | 202 | /* if there is a followup routine, then we must save the results */ |
203 | /* of the first query for use by the followup routine */ | |
204 | /* if q->rvar = NULL, perform post_rtn only */ | |
205 | if (q->rvar) { | |
60140d51 | 206 | if (q->qual) qual = build_qual(q->qual, q->argc, Argv); |
b070f8a1 | 207 | if (v && v->post_rtn) { |
208 | sq = sq_create(); | |
60140d51 | 209 | status = do_retrieve(q, qual, sq_save_args, (char *)sq); |
b070f8a1 | 210 | if (status != MR_SUCCESS) { |
211 | sq_destroy(sq); | |
212 | break; | |
213 | } | |
214 | status = (*v->post_rtn)(q, sq, v, action, actarg, cl); | |
215 | } else { | |
216 | /* normal retrieve */ | |
60140d51 | 217 | status = do_retrieve(q, qual, action, actarg); |
b070f8a1 | 218 | } |
219 | if (status != MR_SUCCESS) break; | |
220 | } else { | |
221 | status = (*v->post_rtn)(q, Argv, cl, action, actarg); | |
222 | } | |
223 | ||
224 | break; | |
225 | ||
226 | case UPDATE: | |
227 | /* see if row already exists */ | |
228 | if (v->field) { | |
229 | status = validate_row(q, Argv, v); | |
230 | if (status != MR_EXISTS) break; | |
231 | } | |
232 | ||
233 | /* build "where" clause and perform update */ | |
234 | /* if q->rvar = NULL, perform post_rtn only */ | |
235 | if (q->rvar) { | |
60140d51 | 236 | qual = build_qual(q->qual, q->argc, Argv); |
b070f8a1 | 237 | incremental_before(q->rtable, qual, argv_ro); |
238 | status = do_update(q, &Argv[q->argc], qual, action, actarg); | |
239 | incremental_after(q->rtable, qual, argv_ro); | |
240 | if (status != MR_SUCCESS) break; | |
241 | flush_name(argv_ro[0], q->rtable); | |
03c05291 | 242 | table = table_name[q->rtable]; |
b070f8a1 | 243 | if (strcmp(q->shortname, "sshi") && strcmp(q->shortname, "ssif")) { |
048b1b94 | 244 | EXEC SQL UPDATE tblstats |
03c05291 | 245 | SET updates = updates + 1, modtime = SYSDATE |
246 | WHERE table_name = :table; | |
b070f8a1 | 247 | } |
248 | } | |
249 | ||
250 | /* execute followup routine (if any) */ | |
251 | if (v->post_rtn) status = (*v->post_rtn)(q, Argv, cl); | |
252 | ||
253 | break; | |
254 | ||
255 | case APPEND: | |
256 | /* see if row already exists */ | |
257 | if (v->field) { | |
258 | status = validate_row(q, Argv, v); | |
259 | if (status != MR_NO_MATCH) break; | |
260 | } | |
261 | ||
b070f8a1 | 262 | /* perform the append */ |
263 | /* if q->rvar = NULL, perform post_rtn only */ | |
264 | if (q->rvar) { | |
60140d51 | 265 | if (q->qual) qual = build_qual(q->qual, q->argc, Argv); |
b070f8a1 | 266 | incremental_clear_before(); |
60140d51 | 267 | status = do_append(q, &Argv[q->argc], qual, action, actarg); |
b070f8a1 | 268 | if (status != MR_SUCCESS) break; |
269 | if (v && v->object_id) { | |
60140d51 | 270 | qual = realloc(qual, 128); |
1b247a36 | 271 | sprintf(qual, "%s.%s = %s",q->rvar, v->object_id, |
45bf7573 | 272 | Argv[q->argc+q->vcnt]); |
b070f8a1 | 273 | incremental_after(q->rtable, qual, argv_ro); |
274 | } else | |
60140d51 | 275 | incremental_after(q->rtable, qual, argv_ro); |
b070f8a1 | 276 | |
03c05291 | 277 | table = table_name[q->rtable]; |
048b1b94 | 278 | EXEC SQL UPDATE tblstats |
03c05291 | 279 | SET appends = appends + 1, modtime = SYSDATE |
280 | WHERE table_name = :table; | |
b070f8a1 | 281 | } |
282 | ||
283 | /* execute followup routine */ | |
284 | if (v->post_rtn) status = (*v->post_rtn)(q, Argv, cl); | |
285 | break; | |
286 | ||
287 | case DELETE: | |
288 | /* see if row already exists */ | |
289 | if (v->field) { | |
290 | status = validate_row(q, Argv, v); | |
291 | if (status != MR_EXISTS) break; | |
292 | } | |
293 | ||
294 | /* build "where" clause and perform delete */ | |
295 | /* if q->rvar = NULL, perform post_rtn only */ | |
296 | if (q->rvar) { | |
60140d51 | 297 | qual = build_qual(q->qual, q->argc, Argv); |
03c05291 | 298 | table = table_name[q->rtable]; |
048b1b94 | 299 | incremental_before(q->rtable, qual, argv_ro); |
b070f8a1 | 300 | status = do_delete(q, qual, action, actarg); |
301 | incremental_clear_after(); | |
302 | if (status != MR_SUCCESS) break; | |
303 | flush_name(argv_ro[0], q->rtable); | |
048b1b94 | 304 | EXEC SQL UPDATE tblstats |
03c05291 | 305 | SET deletes = deletes + 1, modtime = SYSDATE |
306 | WHERE table_name = :table; | |
b070f8a1 | 307 | } |
308 | ||
309 | /* execute followup routine */ | |
310 | if (v->post_rtn) status = (*v->post_rtn)(q, Argv, cl); | |
311 | break; | |
312 | ||
313 | } | |
314 | ||
315 | out: | |
03c05291 | 316 | if (status == MR_SUCCESS && dbms_errno != 0) { |
317 | com_err(whoami, MR_INTERNAL, "Server didn't notice DBMS ERROR %d", | |
318 | dbms_errno); | |
b070f8a1 | 319 | status = mr_errcode; |
320 | } | |
321 | ||
048b1b94 | 322 | if (q->type == RETRIEVE) { |
048b1b94 | 323 | EXEC SQL COMMIT WORK; |
048b1b94 | 324 | } else { |
b070f8a1 | 325 | if (status == MR_SUCCESS) { |
048b1b94 | 326 | EXEC SQL COMMIT WORK; |
b070f8a1 | 327 | if (journal) { |
03c05291 | 328 | char buf[1024]; |
b070f8a1 | 329 | int i; |
330 | extern time_t now; | |
331 | ||
332 | fprintf(journal, "%% %s %s %s", | |
333 | cl->clname, cl->entity, ctime(&now)); | |
334 | fprintf(journal, "%s[%d] ", q->name, cl->args->mr_version_no); | |
335 | for (i = 0; i < argc; i++) { | |
336 | if (i != 0) { | |
337 | putc(' ', journal); | |
338 | } | |
339 | requote(buf, argv_ro[i], sizeof(buf)); | |
340 | fputs(buf, journal); | |
341 | } | |
342 | putc('\n', journal); | |
343 | fflush(journal); | |
344 | } | |
345 | incremental_update(); | |
346 | } else { | |
1a41acb7 | 347 | cache_abort(); |
03c05291 | 348 | EXEC SQL ROLLBACK WORK; |
b070f8a1 | 349 | incremental_flush(); |
350 | } | |
351 | } | |
1a41acb7 | 352 | cache_commit(); /* commit following abort is safe */ |
60140d51 | 353 | if (qual) free(qual); |
b070f8a1 | 354 | |
355 | if (status != MR_SUCCESS && log_flags & LOG_RES) | |
356 | com_err(whoami, status, " (Query failed)"); | |
357 | return(status); | |
358 | } | |
359 | ||
60140d51 | 360 | char *build_qual(fmt_buf, argc, argv) |
361 | char *fmt_buf, *argv[]; | |
03c05291 | 362 | int argc; |
b070f8a1 | 363 | { |
60140d51 | 364 | char *res, *result_buf, *fmt, *arg, *like; |
365 | ||
366 | result_buf = malloc(2*(strlen(fmt_buf) + argc*ARGLEN)); | |
367 | ||
368 | res = result_buf; | |
369 | fmt = fmt_buf; | |
370 | ||
371 | /* Look through the format for LIKE expressions and arguments. | |
372 | Substitute in the arguments, and simplify the `LIKE's to `='s | |
373 | where possible. */ | |
374 | ||
375 | while (*fmt) { | |
376 | like = strstr(fmt, "LIKE"); | |
377 | arg = strchr(fmt, '%'); | |
378 | ||
379 | if (!like && !arg) { | |
380 | /* only plain text remains */ | |
381 | strcpy(res, fmt); | |
382 | break; | |
383 | } else if (!like || arg < like) { | |
384 | /* copy to arg, then substitute */ | |
385 | strncpy(res, fmt, arg - fmt - 1); | |
386 | res += arg - fmt; | |
387 | if(*++arg) { | |
388 | switch(*arg++) { | |
389 | case '%': | |
390 | *res++ = '%'; | |
391 | break; | |
392 | case 's': | |
393 | if(*argv[0]) { | |
394 | char *p = *argv; | |
395 | while(*p) { | |
396 | if(*p == '\'') *res++ = '\''; | |
397 | *res++ = *p++; | |
398 | } | |
03c05291 | 399 | } |
60140d51 | 400 | argv++; |
401 | break; | |
402 | case 'd': | |
403 | res += sprintf(res, "%d", *(int *)*argv++); | |
404 | break; | |
03c05291 | 405 | } |
60140d51 | 406 | } |
407 | fmt = arg; | |
408 | arg = strchr(fmt, '%'); | |
409 | } else { | |
410 | /* copy over up to the arg, then copy and convert the arg */ | |
411 | char *p; | |
412 | int escape = 0; | |
413 | ||
414 | strncpy(res, fmt, arg - fmt - 1); | |
415 | res += arg - fmt; | |
416 | for (p = *argv++; *p; p++) { | |
417 | switch (*p) { | |
418 | case '\'': *res++ = '\''; *res++ = '\''; break; | |
419 | case '*': *res++ = '%'; break; | |
420 | case '?': *res++ = '_'; break; | |
421 | case '%': | |
422 | case '_': *res++ = '*'; *res++ = *p; escape = 1; break; | |
423 | default: *res++ = *p; | |
424 | } | |
425 | } | |
426 | if (escape) res += sprintf(res, " ESCAPE '*'"); | |
427 | ||
428 | fmt += 2; | |
429 | arg = strchr(fmt, '%'); | |
430 | like = strstr(fmt, "LIKE"); | |
431 | } | |
b070f8a1 | 432 | } |
60140d51 | 433 | |
434 | result_buf = realloc(result_buf, strlen(result_buf) + 1); | |
435 | return result_buf; | |
b070f8a1 | 436 | } |
437 | ||
60140d51 | 438 | /* Build argument vector, verify query and arguments */ |
b070f8a1 | 439 | |
f1bc925a | 440 | int privileged; |
441 | ||
03c05291 | 442 | int mr_verify_query(cl, q, argc, argv_ro) |
443 | client *cl; | |
444 | struct query *q; | |
445 | int argc; | |
446 | char *argv_ro[]; | |
b070f8a1 | 447 | { |
448 | register int argreq; | |
449 | register int status; | |
450 | register struct validate *v = q->validate; | |
451 | register int i; | |
99e09b48 | 452 | register char *to,*fr,*stop; |
b070f8a1 | 453 | |
f1bc925a | 454 | privileged = 0; |
455 | ||
b4530d60 | 456 | /* check argument count */ |
457 | argreq = q->argc; | |
458 | if (q->type == UPDATE || q->type == APPEND) argreq += q->vcnt; | |
459 | if (argc != argreq) return(MR_ARGS); | |
460 | ||
b070f8a1 | 461 | /* copy the arguments into a local argv that we can modify */ |
b070f8a1 | 462 | for (i = 0; i < argc; i++) { |
03c05291 | 463 | for (to=Argv[i], fr=argv_ro[i], stop=to+ARGLEN; (*fr) && (to<stop);) |
464 | *to++ = *fr++; | |
465 | ||
99e09b48 | 466 | if (*fr) |
467 | return(MR_ARG_TOO_LONG); | |
468 | *to='\0'; | |
469 | ||
470 | if (*--to == '\\') | |
b070f8a1 | 471 | return(MR_BAD_CHAR); |
472 | } | |
473 | ||
474 | /* check initial query access */ | |
475 | status = check_query_access(q, Argv, cl); | |
476 | if (status != MR_SUCCESS && status != MR_PERM) | |
477 | return(status); | |
478 | if (status == MR_SUCCESS) | |
479 | privileged++; | |
480 | ||
b070f8a1 | 481 | /* validate arguments */ |
482 | if (v && v->valobj) { | |
483 | status = validate_fields(q, Argv, v->valobj, v->objcnt); | |
484 | if (status != MR_SUCCESS) return(status); | |
485 | } | |
486 | ||
487 | /* perform special query access check */ | |
488 | if (!privileged && v && v->acs_rtn) { | |
489 | status = (*v->acs_rtn)(q, Argv, cl); | |
490 | if (status != MR_SUCCESS && status != MR_PERM) | |
491 | return(status); | |
492 | if (status == MR_SUCCESS) | |
f1bc925a | 493 | return(MR_SUCCESS); |
b070f8a1 | 494 | } |
495 | ||
496 | return(privileged ? MR_SUCCESS : MR_PERM); | |
497 | } | |
498 | ||
499 | ||
500 | /* This routine caches info from the database. Each query acl is stored | |
501 | * in the query structure, and whether that acl contains everybody. | |
502 | */ | |
503 | ||
03c05291 | 504 | int check_query_access(q, argv, cl) |
505 | struct query *q; | |
506 | char *argv[]; | |
507 | client *cl; | |
048b1b94 | 508 | { |
509 | EXEC SQL BEGIN DECLARE SECTION; | |
510 | char *name; | |
511 | int acl_id; | |
048b1b94 | 512 | static int def_uid; |
513 | EXEC SQL END DECLARE SECTION; | |
b070f8a1 | 514 | |
515 | /* initialize default uid */ | |
516 | if (def_uid == 0) { | |
048b1b94 | 517 | EXEC SQL SELECT users_id INTO :def_uid FROM users WHERE login='default'; |
b070f8a1 | 518 | } |
519 | ||
520 | /* get query access control list */ | |
521 | if (q->acl != 0) | |
522 | acl_id = q->acl; | |
523 | else { | |
524 | name = q->shortname; | |
048b1b94 | 525 | EXEC SQL SELECT list_id INTO :acl_id FROM capacls WHERE tag = :name; |
03c05291 | 526 | if (sqlca.sqlcode < 0) return(MR_DBMS_ERR); |
527 | if (sqlca.sqlcode == SQL_NO_MATCH) return(MR_PERM); | |
b070f8a1 | 528 | q->acl = acl_id; |
529 | ||
530 | /* check for default access */ | |
048b1b94 | 531 | EXEC SQL SELECT member_id INTO :acl_id FROM imembers |
532 | WHERE list_id = :acl_id AND member_type = 'USER' | |
533 | AND member_id = :def_uid; | |
534 | if (sqlca.sqlerrd[2] == 0) | |
535 | q->everybody = 0; | |
536 | else | |
537 | q->everybody = 1; | |
b070f8a1 | 538 | } |
539 | ||
540 | if (q->everybody) | |
541 | return(MR_SUCCESS); | |
542 | ||
f3c08a60 | 543 | if (find_member("LIST", acl_id, cl)) |
b070f8a1 | 544 | return(MR_SUCCESS); |
545 | else | |
546 | return(MR_PERM); | |
048b1b94 | 547 | } |
b070f8a1 | 548 | |
549 | ||
f3c08a60 | 550 | int find_member(list_type, list_id, cl) |
551 | char *list_type; | |
552 | int list_id; | |
03c05291 | 553 | client *cl; |
048b1b94 | 554 | { |
555 | EXEC SQL BEGIN DECLARE SECTION; | |
f3c08a60 | 556 | int flag, users_id, client_id; |
048b1b94 | 557 | EXEC SQL END DECLARE SECTION; |
b070f8a1 | 558 | |
f3c08a60 | 559 | if (!strcmp(strtrim(list_type), "USER") && |
560 | list_id == cl->users_id) | |
561 | return(1); | |
562 | ||
563 | if (!strcmp(strtrim(list_type), "KERBEROS") && | |
564 | list_id == -cl->client_id) | |
b070f8a1 | 565 | return(1); |
566 | ||
f3c08a60 | 567 | /* see if client is a member of list */ |
048b1b94 | 568 | flag = 0; |
f3c08a60 | 569 | users_id = cl->users_id; |
570 | client_id = -cl->client_id; | |
2a467737 | 571 | EXEC SQL SELECT COUNT(member_id) INTO :flag FROM imembers |
572 | WHERE list_id = :list_id | |
f3c08a60 | 573 | AND ( ( member_type = 'USER' AND member_id = :users_id ) |
574 | OR (member_type = 'KERBEROS' AND member_id = :client_id ) ); | |
048b1b94 | 575 | if (sqlca.sqlcode == 0) |
576 | return(flag); | |
577 | return(0); | |
578 | } | |
b070f8a1 | 579 | |
580 | ||
68b5b948 | 581 | int do_retrieve(q, pqual, action, actarg) |
03c05291 | 582 | struct query *q; |
68b5b948 | 583 | char *pqual, *actarg; |
03c05291 | 584 | int (*action)(); |
048b1b94 | 585 | { |
60140d51 | 586 | char *stmt; |
587 | int status; | |
cc0088db | 588 | |
60140d51 | 589 | stmt = build_sql_stmt("SELECT",q->tlist,NULL,0,pqual,q->sort); |
590 | status = do_for_all_rows(stmt_buf, q->vcnt, action, (int)actarg); | |
591 | free(stmt); | |
592 | return status; | |
cc0088db | 593 | } |
594 | ||
60140d51 | 595 | char *build_sql_stmt(cmd, targetlist, argv, argc, qual, sort) |
596 | char *cmd, *targetlist, *argv[], *qual, *sort; | |
597 | int argc; | |
048b1b94 | 598 | { |
60140d51 | 599 | char *result_buf; |
600 | int len; | |
99e09b48 | 601 | register char *res, *fmt; |
602 | ||
60140d51 | 603 | len = strlen(cmd) + strlen(targetlist) + argc*ARGLEN + 3; |
604 | if (qual) len += strlen(qual) + 6; | |
605 | if (sort) len += strlen(sort) + 10; | |
606 | result_buf = malloc(len); | |
607 | ||
608 | sprintf(result_buf, "%s ", cmd); | |
99e09b48 | 609 | |
60140d51 | 610 | for(res=strchr(result_buf, '\0'), fmt=targetlist; *fmt; fmt++) { |
99e09b48 | 611 | if(*fmt=='%') { |
612 | if(*++fmt) { | |
613 | switch(*fmt) { | |
60140d51 | 614 | case '%': |
99e09b48 | 615 | *res++ = *fmt; |
616 | break; | |
617 | case 's': | |
618 | if(*argv[0]) { | |
03c05291 | 619 | char *p=*argv; |
620 | while(*p) { | |
60140d51 | 621 | if(*p=='\'') *res++='\''; |
03c05291 | 622 | *res++=*p++; |
623 | } | |
99e09b48 | 624 | } |
625 | argv++; | |
626 | break; | |
627 | case 'd': | |
03c05291 | 628 | res+=sprintf(res,"%d",*(int *)*argv++); |
99e09b48 | 629 | break; |
60140d51 | 630 | default: |
99e09b48 | 631 | break; |
632 | } | |
633 | } else break; | |
60140d51 | 634 | } else *res++ = *fmt; |
048b1b94 | 635 | } |
636 | *res='\0'; | |
cc0088db | 637 | |
60140d51 | 638 | if (qual) |
639 | res += sprintf(res, " WHERE %s", qual); | |
640 | ||
641 | if(sort) | |
642 | res += sprintf(res, " ORDER BY %s", sort); | |
643 | ||
644 | result_buf = realloc(result_buf, strlen(result_buf)); | |
645 | ||
646 | return result_buf; | |
048b1b94 | 647 | } |
b070f8a1 | 648 | |
03c05291 | 649 | int do_update(q, argv, qual, action, actarg) |
650 | struct query *q; | |
651 | char *argv[], *qual, *actarg; | |
652 | int (*action)(); | |
048b1b94 | 653 | { |
60140d51 | 654 | EXEC SQL BEGIN DECLARE SECTION; |
655 | char *stmt; | |
656 | EXEC SQL END DECLARE SECTION; | |
657 | ||
658 | stmt = build_sql_stmt("UPDATE",q->tlist,argv,q->vcnt,qual,NULL); | |
659 | EXEC SQL EXECUTE IMMEDIATE :stmt; | |
660 | free(stmt); | |
b070f8a1 | 661 | if (mr_errcode) return(mr_errcode); |
662 | return(MR_SUCCESS); | |
048b1b94 | 663 | } |
b070f8a1 | 664 | |
03c05291 | 665 | int do_append(q, argv, pqual, action, actarg) |
666 | struct query *q; | |
667 | char *argv[], *pqual, *actarg; | |
668 | int (*action)(); | |
048b1b94 | 669 | { |
60140d51 | 670 | EXEC SQL BEGIN DECLARE SECTION; |
671 | char *stmt; | |
672 | EXEC SQL END DECLARE SECTION; | |
673 | ||
674 | stmt = build_sql_stmt("INSERT",q->tlist,argv,q->vcnt,pqual,NULL); | |
675 | EXEC SQL EXECUTE IMMEDIATE :stmt; | |
676 | free(stmt); | |
b070f8a1 | 677 | if (mr_errcode) return(mr_errcode); |
678 | return(MR_SUCCESS); | |
048b1b94 | 679 | } |
b070f8a1 | 680 | |
03c05291 | 681 | int do_delete(q, qual, action, actarg) |
682 | struct query *q; | |
683 | char *qual, *actarg; | |
684 | int (*action)(); | |
048b1b94 | 685 | { |
03c05291 | 686 | sprintf(stmt_buf,"DELETE FROM %s WHERE %s",table_name[q->rtable],qual); |
048b1b94 | 687 | EXEC SQL EXECUTE IMMEDIATE :stmt_buf; |
b070f8a1 | 688 | if (mr_errcode) return(mr_errcode); |
689 | return(MR_SUCCESS); | |
048b1b94 | 690 | } |
b070f8a1 | 691 | |
692 | ||
693 | /** | |
694 | ** set_next_object_id - set next object id in values table | |
695 | ** | |
696 | ** Inputs: object - object name in values table and in objects | |
697 | ** table - name of table objects are found in | |
1a41acb7 | 698 | ** limit - should the ID be range limited |
b070f8a1 | 699 | ** |
700 | ** - called before an APPEND operation to set the next object id to | |
701 | ** be used for the new record to the next free value | |
702 | ** | |
703 | **/ | |
704 | ||
03c05291 | 705 | int set_next_object_id(object, table, limit) |
706 | EXEC SQL BEGIN DECLARE SECTION; | |
707 | char *object; | |
708 | EXEC SQL END DECLARE SECTION; | |
709 | enum tables table; | |
710 | int limit; | |
048b1b94 | 711 | { |
712 | EXEC SQL BEGIN DECLARE SECTION; | |
c9a214e4 | 713 | int value; |
048b1b94 | 714 | EXEC SQL END DECLARE SECTION; |
45bf7573 | 715 | int starting_value; |
716 | ||
048b1b94 | 717 | EXEC SQL SELECT value INTO :value FROM numvalues WHERE name = :object; |
718 | if (sqlca.sqlerrd[2] != 1) | |
1a41acb7 | 719 | return(MR_NO_ID); |
720 | ||
45bf7573 | 721 | starting_value=value; |
c9a214e4 | 722 | while (1) { |
45bf7573 | 723 | if (limit && value > MAX_ID_VALUE) |
724 | value = MIN_ID_VALUE; | |
725 | ||
03c05291 | 726 | sprintf(stmt_buf,"SELECT %s FROM %s WHERE %s=%d", |
727 | object,table_name[table],object,value); | |
728 | dosql(sqlbuffer); | |
45bf7573 | 729 | if (sqlca.sqlcode < 0) return(mr_errcode); |
03c05291 | 730 | if (sqlca.sqlcode == SQL_NO_MATCH) break; |
45bf7573 | 731 | |
45bf7573 | 732 | value++; |
733 | if (limit && value == starting_value) { | |
734 | com_err(whoami,0,"All id values have been used"); | |
735 | return(MR_NO_ID); | |
736 | } | |
b070f8a1 | 737 | } |
738 | ||
739 | if (LOG_RES) | |
c9a214e4 | 740 | com_err(whoami, 0, "setting ID %s to %d", object, value); |
048b1b94 | 741 | EXEC SQL UPDATE numvalues SET value = :value WHERE name = :object; |
b070f8a1 | 742 | return(MR_SUCCESS); |
048b1b94 | 743 | } |
b070f8a1 | 744 | |
745 | ||
746 | /* Turn a kerberos name into the user's ID of the account that principal | |
747 | * owns. Sets the kerberos ID and user ID. | |
748 | */ | |
749 | ||
750 | int set_krb_mapping(name, login, ok, kid, uid) | |
03c05291 | 751 | char *name, *login; |
752 | int ok, *kid, *uid; | |
048b1b94 | 753 | { |
754 | EXEC SQL BEGIN DECLARE SECTION; | |
755 | int u_id, k_id; | |
756 | char *krbname; | |
757 | EXEC SQL END DECLARE SECTION; | |
b070f8a1 | 758 | |
759 | krbname = name; | |
760 | *kid = 0; | |
761 | *uid = 0; | |
762 | ||
fbeb0263 | 763 | EXEC SQL SELECT km.users_id, km.string_id INTO :u_id, :k_id |
764 | FROM krbmap km, strings str | |
765 | WHERE km.string_id = str.string_id AND str.string = :krbname; | |
3e6ff9e4 | 766 | EXEC SQL COMMIT WORK; |
048b1b94 | 767 | |
03c05291 | 768 | if (dbms_errno) return(mr_errcode); |
b070f8a1 | 769 | |
048b1b94 | 770 | if (sqlca.sqlerrd[2] == 1) { /* rowcount */ |
b070f8a1 | 771 | *kid = -k_id; |
772 | *uid = u_id; | |
773 | return(MR_SUCCESS); | |
774 | } | |
775 | ||
03c05291 | 776 | if (name_to_id(name, STRINGS_TABLE, &k_id) == MR_SUCCESS) |
b070f8a1 | 777 | *kid = -k_id; |
778 | ||
048b1b94 | 779 | if (!ok) { |
b070f8a1 | 780 | *uid = *kid; |
781 | return(MR_SUCCESS); | |
782 | } | |
783 | ||
03c05291 | 784 | if (name_to_id(login, USERS_TABLE, uid) != MR_SUCCESS) |
b070f8a1 | 785 | *uid = 0; |
786 | ||
787 | if (*kid == 0) | |
788 | *kid = *uid; | |
03c05291 | 789 | if (dbms_errno) return(mr_errcode); |
b070f8a1 | 790 | return(MR_SUCCESS); |
048b1b94 | 791 | } |
b070f8a1 | 792 | |
793 | ||
794 | /* For now this just checks the argc's. It should also see that there | |
795 | * are no duplicate names. | |
796 | */ | |
797 | ||
03c05291 | 798 | void sanity_check_queries(void) |
b070f8a1 | 799 | { |
800 | register int i; | |
801 | int maxv = 0, maxa = 0; | |
b070f8a1 | 802 | extern int QueryCount2; |
803 | extern struct query Queries2[]; | |
b070f8a1 | 804 | |
805 | #define MAX(x,y) ((x) > (y) ? (x) : (y)) | |
806 | ||
b070f8a1 | 807 | for (i = 0; i < QueryCount2; i++) { |
808 | maxv = MAX(maxv, Queries2[i].vcnt); | |
809 | maxa = MAX(maxa, Queries2[i].argc); | |
810 | } | |
811 | if (MAX(maxv, maxa) > QMAXARGS) { | |
812 | com_err(whoami, 0, "A query has more args than QMAXARGS"); | |
813 | exit(1); | |
814 | } | |
815 | } | |
048b1b94 | 816 | |
03c05291 | 817 | |
818 | /* Generically do a SELECT, storing the results in the provided buffers */ | |
819 | ||
820 | void dosql(buffers) | |
821 | char *buffers[]; | |
822 | { | |
823 | int i, errcode=0, errlen; | |
824 | ||
825 | EXEC SQL PREPARE inc_stmt FROM :stmt_buf; | |
826 | if(sqlca.sqlcode) return; | |
827 | EXEC SQL DECLARE inc_crs CURSOR FOR inc_stmt; | |
828 | EXEC SQL OPEN inc_crs; | |
829 | mr_sqlda->N = QMAXARGS; | |
830 | EXEC SQL DESCRIBE SELECT LIST FOR inc_stmt INTO mr_sqlda; | |
831 | mr_sqlda->N = mr_sqlda->F; | |
832 | for(i=0; i<mr_sqlda->N; i++) { | |
833 | mr_sqlda->V[i]=buffers[i]; | |
834 | mr_sqlda->T[i]=97; | |
835 | mr_sqlda->L[i]=ARGLEN; | |
836 | } | |
837 | EXEC SQL FETCH inc_crs USING DESCRIPTOR mr_sqlda; | |
838 | ||
839 | /* if we got an error from the FETCH, we have to preserve it or the | |
840 | close will reset it and the caller will think nothing happened */ | |
841 | if(sqlca.sqlcode) { | |
842 | errcode=sqlca.sqlcode; | |
843 | errlen=sqlca.sqlerrm.sqlerrml; | |
844 | } | |
845 | ||
846 | EXEC SQL CLOSE inc_crs; | |
847 | if(errcode) { | |
848 | sqlca.sqlcode=errcode; | |
849 | sqlca.sqlerrm.sqlerrml=errlen; | |
850 | } | |
851 | } | |
852 | ||
853 | int do_for_all_rows(query, count, action, actarg) | |
854 | EXEC SQL BEGIN DECLARE SECTION; | |
855 | char *query; | |
856 | EXEC SQL END DECLARE SECTION; | |
857 | int count, (*action)(), actarg; | |
858 | { | |
859 | int i, rowcount=0; | |
860 | ||
861 | EXEC SQL PREPARE stmt FROM :query; | |
862 | if(sqlca.sqlcode) return; | |
863 | EXEC SQL DECLARE curs CURSOR FOR stmt; | |
864 | EXEC SQL OPEN curs; | |
865 | mr_sqlda->N = count; | |
866 | EXEC SQL DESCRIBE SELECT LIST FOR stmt INTO mr_sqlda; | |
867 | mr_sqlda->N = mr_sqlda->F; | |
868 | for(i=0; i<mr_sqlda->N; i++) { | |
869 | mr_sqlda->V[i]=sqlbuffer[i]; | |
870 | mr_sqlda->T[i]=97; | |
871 | mr_sqlda->L[i]=ARGLEN; | |
872 | } | |
873 | ||
874 | while(1) { | |
875 | EXEC SQL FETCH curs USING DESCRIPTOR mr_sqlda; | |
876 | if(sqlca.sqlcode != 0) break; | |
877 | (*action)(count, sqlbuffer, actarg); | |
878 | rowcount++; | |
879 | } | |
880 | EXEC SQL CLOSE curs; | |
881 | ||
882 | if (mr_errcode) return(mr_errcode); | |
883 | return ((rowcount == 0) ? MR_NO_MATCH : MR_SUCCESS); | |
884 | } | |
885 | ||
886 | ||
048b1b94 | 887 | /* eof:qrtn.dc */ |