diff options
Diffstat (limited to 'source3/lib/ldb/ldb_sqlite3')
| -rw-r--r-- | source3/lib/ldb/ldb_sqlite3/README | 7 | ||||
| -rw-r--r-- | source3/lib/ldb/ldb_sqlite3/base160.c | 154 | ||||
| -rw-r--r-- | source3/lib/ldb/ldb_sqlite3/ldb_sqlite3.c | 1912 | ||||
| -rw-r--r-- | source3/lib/ldb/ldb_sqlite3/schema | 363 | ||||
| -rw-r--r-- | source3/lib/ldb/ldb_sqlite3/trees.ps | 1760 |
5 files changed, 0 insertions, 4196 deletions
diff --git a/source3/lib/ldb/ldb_sqlite3/README b/source3/lib/ldb/ldb_sqlite3/README deleted file mode 100644 index 6cda0a7759..0000000000 --- a/source3/lib/ldb/ldb_sqlite3/README +++ /dev/null @@ -1,7 +0,0 @@ -trees.ps contains an explanation of the Genealogical Representation of Trees -in Databases which is being used in ldb_sqlite3. Note that we use fgID -representation with 4 bytes per level, so we can represent 6.5E+08 subclasses -of any object class. This should be adequate for our purposes. :-) - -The following document is the primary basis for the schema currently being -used here: http://www.research.ibm.com/journal/sj/392/shi.html diff --git a/source3/lib/ldb/ldb_sqlite3/base160.c b/source3/lib/ldb/ldb_sqlite3/base160.c deleted file mode 100644 index 7ad39f7c2f..0000000000 --- a/source3/lib/ldb/ldb_sqlite3/base160.c +++ /dev/null @@ -1,154 +0,0 @@ -/* - base160 code used by ldb_sqlite3 - - Copyright (C) 2004 Derrell Lipman - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 3 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, see <http://www.gnu.org/licenses/>. -*/ - - -/* - * ldb_sqlite3_base160() - * - * Convert an integer value to a string containing the base 160 representation - * of the integer. We always convert to a string representation that is 4 - * bytes in length, and we always null terminate. - * - * Parameters: - * val -- - * The value to be converted - * - * result -- - * Buffer in which the result is to be placed - * - * Returns: - * nothing - */ -static unsigned char base160tab[161] = -{ - 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , /* 0-9 */ - 58 , 59 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , /* : ; A-H */ - 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , /* I-R */ - 83 , 84 , 85 , 86 , 87 , 88 , 89 , 90 , 97 , 98 , /* S-Z , a-b */ - 99 , 100, 101, 102, 103, 104, 105, 106, 107, 108, /* c-l */ - 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, /* m-v */ - 119, 120, 121, 122, 160, 161, 162, 163, 164, 165, /* w-z, latin1 */ - 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, /* latin1 */ - 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, /* latin1 */ - 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, /* latin1 */ - 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, /* latin1 */ - 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, /* latin1 */ - 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, /* latin1 */ - 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, /* latin1 */ - 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, /* latin1 */ - 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, /* latin1 */ - '\0' -}; - - -/* - * lsqlite3_base160() - * - * Convert an unsigned long integer into a base160 representation of the - * number. - * - * Parameters: - * val -- - * value to be converted - * - * result -- - * character array, 5 bytes long, into which the base160 representation - * will be placed. The result will be a four-digit representation of the - * number (with leading zeros prepended as necessary), and null - * terminated. - * - * Returns: - * Nothing - */ -void -lsqlite3_base160(unsigned long val, - unsigned char result[5]) -{ - int i; - - for (i = 3; i >= 0; i--) { - - result[i] = base160tab[val % 160]; - val /= 160; - } - - result[4] = '\0'; -} - - -/* - * lsqlite3_base160Next() - * - * Retrieve the next-greater number in the base160 sequence for the terminal - * tree node (the last four digits). Only one tree level (four digits) are - * operated on. - * - * Parameters: - * base160 -- a character array containing either an empty string (in which - * case no operation is performed), or a string of base160 digits - * with a length of a multiple of four digits. - * - * Upon return, the trailing four digits (one tree level) will - * have been incremented by 1. - * - * Returns: - * base160 -- the modified array - */ -char * -lsqlite3_base160Next(char base160[]) -{ - int i; - int len; - unsigned char * pTab; - char * pBase160 = base160; - - /* - * We need a minimum of four digits, and we will always get a multiple of - * four digits. - */ - if ((len = strlen(pBase160)) >= 4) - { - pBase160 += strlen(pBase160) - 1; - - /* We only carry through four digits: one level in the tree */ - for (i = 0; i < 4; i++) { - - /* What base160 value does this digit have? */ - pTab = strchr(base160tab, *pBase160); - - /* Is there a carry? */ - if (pTab < base160tab + sizeof(base160tab) - 1) { - - /* Nope. Just increment this value and we're done. */ - *pBase160 = *++pTab; - break; - } else { - - /* - * There's a carry. This value gets base160tab[0], we - * decrement the buffer pointer to get the next higher-order - * digit, and continue in the loop. - */ - *pBase160-- = base160tab[0]; - } - } - } - - return base160; -} diff --git a/source3/lib/ldb/ldb_sqlite3/ldb_sqlite3.c b/source3/lib/ldb/ldb_sqlite3/ldb_sqlite3.c deleted file mode 100644 index d8fc162741..0000000000 --- a/source3/lib/ldb/ldb_sqlite3/ldb_sqlite3.c +++ /dev/null @@ -1,1912 +0,0 @@ -/* - ldb database library - - Copyright (C) Derrell Lipman 2005 - Copyright (C) Simo Sorce 2005-2006 - - ** NOTE! The following LGPL license applies to the ldb - ** library. This does NOT imply that all of Samba is released - ** under the LGPL - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 3 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, see <http://www.gnu.org/licenses/>. -*/ - -/* - * Name: ldb - * - * Component: ldb sqlite3 backend - * - * Description: core files for SQLITE3 backend - * - * Author: Derrell Lipman (based on Andrew Tridgell's LDAP backend) - */ - -#include "includes.h" -#include "ldb/include/includes.h" - -#include <sqlite3.h> - -struct lsqlite3_private { - int trans_count; - char **options; - sqlite3 *sqlite; -}; - -struct lsql_context { - struct ldb_module *module; - - /* search stuff */ - long long current_eid; - const char * const * attrs; - struct ldb_reply *ares; - - /* async stuff */ - void *context; - int (*callback)(struct ldb_context *, void *, struct ldb_reply *); -}; - -static struct ldb_handle *init_handle(struct lsqlite3_private *lsqlite3, - struct ldb_module *module, - struct ldb_request *req) -{ - struct lsql_context *ac; - struct ldb_handle *h; - - h = talloc_zero(lsqlite3, struct ldb_handle); - if (h == NULL) { - ldb_set_errstring(module->ldb, "Out of Memory"); - return NULL; - } - - h->module = module; - - ac = talloc(h, struct lsql_context); - if (ac == NULL) { - ldb_set_errstring(module->ldb, "Out of Memory"); - talloc_free(h); - return NULL; - } - - h->private_data = (void *)ac; - - h->state = LDB_ASYNC_INIT; - h->status = LDB_SUCCESS; - - ac->module = module; - ac->context = req->context; - ac->callback = req->callback; - - return h; -} - -/* - * Macros used throughout - */ - -#ifndef FALSE -# define FALSE (0) -# define TRUE (! FALSE) -#endif - -#define RESULT_ATTR_TABLE "temp_result_attrs" - -//#define TEMPTAB /* for testing, create non-temporary table */ -#define TEMPTAB "TEMPORARY" - -/* - * Static variables - */ -sqlite3_stmt * stmtGetEID = NULL; - -static char *lsqlite3_tprintf(TALLOC_CTX *mem_ctx, const char *fmt, ...) -{ - char *str, *ret; - va_list ap; - - va_start(ap, fmt); - str = sqlite3_vmprintf(fmt, ap); - va_end(ap); - - if (str == NULL) return NULL; - - ret = talloc_strdup(mem_ctx, str); - if (ret == NULL) { - sqlite3_free(str); - return NULL; - } - - sqlite3_free(str); - return ret; -} - -static char base160tab[161] = { - 48 ,49 ,50 ,51 ,52 ,53 ,54 ,55 ,56 ,57 , /* 0-9 */ - 58 ,59 ,65 ,66 ,67 ,68 ,69 ,70 ,71 ,72 , /* : ; A-H */ - 73 ,74 ,75 ,76 ,77 ,78 ,79 ,80 ,81 ,82 , /* I-R */ - 83 ,84 ,85 ,86 ,87 ,88 ,89 ,90 ,97 ,98 , /* S-Z , a-b */ - 99 ,100,101,102,103,104,105,106,107,108, /* c-l */ - 109,110,111,112,113,114,115,116,117,118, /* m-v */ - 119,120,121,122,160,161,162,163,164,165, /* w-z, latin1 */ - 166,167,168,169,170,171,172,173,174,175, /* latin1 */ - 176,177,178,179,180,181,182,183,184,185, /* latin1 */ - 186,187,188,189,190,191,192,193,194,195, /* latin1 */ - 196,197,198,199,200,201,202,203,204,205, /* latin1 */ - 206,207,208,209,210,211,212,213,214,215, /* latin1 */ - 216,217,218,219,220,221,222,223,224,225, /* latin1 */ - 226,227,228,229,230,231,232,233,234,235, /* latin1 */ - 236,237,238,239,240,241,242,243,244,245, /* latin1 */ - 246,247,248,249,250,251,252,253,254,255, /* latin1 */ - '\0' -}; - - -/* - * base160() - * - * Convert an unsigned long integer into a base160 representation of the - * number. - * - * Parameters: - * val -- - * value to be converted - * - * result -- - * character array, 5 bytes long, into which the base160 representation - * will be placed. The result will be a four-digit representation of the - * number (with leading zeros prepended as necessary), and null - * terminated. - * - * Returns: - * Nothing - */ -static void -base160_sql(sqlite3_context * hContext, - int argc, - sqlite3_value ** argv) -{ - int i; - long long val; - char result[5]; - - val = sqlite3_value_int64(argv[0]); - - for (i = 3; i >= 0; i--) { - - result[i] = base160tab[val % 160]; - val /= 160; - } - - result[4] = '\0'; - - sqlite3_result_text(hContext, result, -1, SQLITE_TRANSIENT); -} - - -/* - * base160next_sql() - * - * This function enhances sqlite by adding a "base160_next()" function which is - * accessible via queries. - * - * Retrieve the next-greater number in the base160 sequence for the terminal - * tree node (the last four digits). Only one tree level (four digits) is - * operated on. - * - * Input: - * A character string: either an empty string (in which case no operation is - * performed), or a string of base160 digits with a length of a multiple of - * four digits. - * - * Output: - * Upon return, the trailing four digits (one tree level) will have been - * incremented by 1. - */ -static void -base160next_sql(sqlite3_context * hContext, - int argc, - sqlite3_value ** argv) -{ - int i; - int len; - char * pTab; - char * pBase160 = strdup((const char *)sqlite3_value_text(argv[0])); - char * pStart = pBase160; - - /* - * We need a minimum of four digits, and we will always get a multiple - * of four digits. - */ - if (pBase160 != NULL && - (len = strlen(pBase160)) >= 4 && - len % 4 == 0) { - - if (pBase160 == NULL) { - - sqlite3_result_null(hContext); - return; - } - - pBase160 += strlen(pBase160) - 1; - - /* We only carry through four digits: one level in the tree */ - for (i = 0; i < 4; i++) { - - /* What base160 value does this digit have? */ - pTab = strchr(base160tab, *pBase160); - - /* Is there a carry? */ - if (pTab < base160tab + sizeof(base160tab) - 1) { - - /* - * Nope. Just increment this value and we're - * done. - */ - *pBase160 = *++pTab; - break; - } else { - - /* - * There's a carry. This value gets - * base160tab[0], we decrement the buffer - * pointer to get the next higher-order digit, - * and continue in the loop. - */ - *pBase160-- = base160tab[0]; - } - } - - sqlite3_result_text(hContext, - pStart, - strlen(pStart), - free); - } else { - sqlite3_result_value(hContext, argv[0]); - if (pBase160 != NULL) { - free(pBase160); - } - } -} - -static char *parsetree_to_sql(struct ldb_module *module, - void *mem_ctx, - const struct ldb_parse_tree *t) -{ - const struct ldb_attrib_handler *h; - struct ldb_val value, subval; - char *wild_card_string; - char *child, *tmp; - char *ret = NULL; - char *attr; - int i; - - - switch(t->operation) { - case LDB_OP_AND: - - tmp = parsetree_to_sql(module, mem_ctx, t->u.list.elements[0]); - if (tmp == NULL) return NULL; - - for (i = 1; i < t->u.list.num_elements; i++) { - - child = parsetree_to_sql(module, mem_ctx, t->u.list.elements[i]); - if (child == NULL) return NULL; - - tmp = talloc_asprintf_append(tmp, " INTERSECT %s ", child); - if (tmp == NULL) return NULL; - } - - ret = talloc_asprintf(mem_ctx, "SELECT * FROM ( %s )\n", tmp); - - return ret; - - case LDB_OP_OR: - - tmp = parsetree_to_sql(module, mem_ctx, t->u.list.elements[0]); - if (tmp == NULL) return NULL; - - for (i = 1; i < t->u.list.num_elements; i++) { - - child = parsetree_to_sql(module, mem_ctx, t->u.list.elements[i]); - if (child == NULL) return NULL; - - tmp = talloc_asprintf_append(tmp, " UNION %s ", child); - if (tmp == NULL) return NULL; - } - - return talloc_asprintf(mem_ctx, "SELECT * FROM ( %s ) ", tmp); - - case LDB_OP_NOT: - - child = parsetree_to_sql(module, mem_ctx, t->u.isnot.child); - if (child == NULL) return NULL; - - return talloc_asprintf(mem_ctx, - "SELECT eid FROM ldb_entry " - "WHERE eid NOT IN ( %s ) ", child); - - case LDB_OP_EQUALITY: - /* - * For simple searches, we want to retrieve the list of EIDs that - * match the criteria. - */ - attr = ldb_attr_casefold(mem_ctx, t->u.equality.attr); - if (attr == NULL) return NULL; - h = ldb_attrib_handler(module->ldb, attr); - - /* Get a canonicalised copy of the data */ - h->canonicalise_fn(module->ldb, mem_ctx, &(t->u.equality.value), &value); - if (value.data == NULL) { - return NULL; - } - - if (strcasecmp(t->u.equality.attr, "objectclass") == 0) { - /* - * For object classes, we want to search for all objectclasses - * that are subclasses as well. - */ - return lsqlite3_tprintf(mem_ctx, - "SELECT eid FROM ldb_attribute_values\n" - "WHERE norm_attr_name = 'OBJECTCLASS' " - "AND norm_attr_value IN\n" - " (SELECT class_name FROM ldb_object_classes\n" - " WHERE tree_key GLOB\n" - " (SELECT tree_key FROM ldb_object_classes\n" - " WHERE class_name = '%q'\n" - " ) || '*'\n" - " )\n", value.data); - - } else if (strcasecmp(t->u.equality.attr, "dn") == 0) { - /* DN query is a special ldb case */ - char *cdn = ldb_dn_linearize_casefold(module->ldb, - mem_ctx, - ldb_dn_explode(module->ldb, - (const char *)value.data)); - - return lsqlite3_tprintf(mem_ctx, - "SELECT eid FROM ldb_entry " - "WHERE norm_dn = '%q'", cdn); - - } else { - /* A normal query. */ - return lsqlite3_tprintf(mem_ctx, - "SELECT eid FROM ldb_attribute_values " - "WHERE norm_attr_name = '%q' " - "AND norm_attr_value = '%q'", - attr, - value.data); - - } - - case LDB_OP_SUBSTRING: - - wild_card_string = talloc_strdup(mem_ctx, - (t->u.substring.start_with_wildcard)?"*":""); - if (wild_card_string == NULL) return NULL; - - for (i = 0; t->u.substring.chunks[i]; i++) { - wild_card_string = talloc_asprintf_append(wild_card_string, "%s*", - t->u.substring.chunks[i]->data); - if (wild_card_string == NULL) return NULL; - } - - if ( ! t->u.substring.end_with_wildcard ) { - /* remove last wildcard */ - wild_card_string[strlen(wild_card_string) - 1] = '\0'; - } - - attr = ldb_attr_casefold(mem_ctx, t->u.substring.attr); - if (attr == NULL) return NULL; - h = ldb_attrib_handler(module->ldb, attr); - - subval.data = (void *)wild_card_string; - subval.length = strlen(wild_card_string) + 1; - - /* Get a canonicalised copy of the data */ - h->canonicalise_fn(module->ldb, mem_ctx, &(subval), &value); - if (value.data == NULL) { - return NULL; - } - - return lsqlite3_tprintf(mem_ctx, - "SELECT eid FROM ldb_attribute_values " - "WHERE norm_attr_name = '%q' " - "AND norm_attr_value GLOB '%q'", - attr, - value.data); - - case LDB_OP_GREATER: - attr = ldb_attr_casefold(mem_ctx, t->u.equality.attr); - if (attr == NULL) return NULL; - h = ldb_attrib_handler(module->ldb, attr); - - /* Get a canonicalised copy of the data */ - h->canonicalise_fn(module->ldb, mem_ctx, &(t->u.equality.value), &value); - if (value.data == NULL) { - return NULL; - } - - return lsqlite3_tprintf(mem_ctx, - "SELECT eid FROM ldb_attribute_values " - "WHERE norm_attr_name = '%q' " - "AND ldap_compare(norm_attr_value, '>=', '%q', '%q') ", - attr, - value.data, - attr); - - case LDB_OP_LESS: - attr = ldb_attr_casefold(mem_ctx, t->u.equality.attr); - if (attr == NULL) return NULL; - h = ldb_attrib_handler(module->ldb, attr); - - /* Get a canonicalised copy of the data */ - h->canonicalise_fn(module->ldb, mem_ctx, &(t->u.equality.value), &value); - if (value.data == NULL) { - return NULL; - } - - return lsqlite3_tprintf(mem_ctx, - "SELECT eid FROM ldb_attribute_values " - "WHERE norm_attr_name = '%q' " - "AND ldap_compare(norm_attr_value, '<=', '%q', '%q') ", - attr, - value.data, - attr); - - case LDB_OP_PRESENT: - if (strcasecmp(t->u.present.attr, "dn") == 0) { - return talloc_strdup(mem_ctx, "SELECT eid FROM ldb_entry"); - } - - attr = ldb_attr_casefold(mem_ctx, t->u.present.attr); - if (attr == NULL) return NULL; - - return lsqlite3_tprintf(mem_ctx, - "SELECT eid FROM ldb_attribute_values " - "WHERE norm_attr_name = '%q' ", - attr); - - case LDB_OP_APPROX: - attr = ldb_attr_casefold(mem_ctx, t->u.equality.attr); - if (attr == NULL) return NULL; - h = ldb_attrib_handler(module->ldb, attr); - - /* Get a canonicalised copy of the data */ - h->canonicalise_fn(module->ldb, mem_ctx, &(t->u.equality.value), &value); - if (value.data == NULL) { - return NULL; - } - - return lsqlite3_tprintf(mem_ctx, - "SELECT eid FROM ldb_attribute_values " - "WHERE norm_attr_name = '%q' " - "AND ldap_compare(norm_attr_value, '~%', 'q', '%q') ", - attr, - value.data, - attr); - - case LDB_OP_EXTENDED: -#warning "work out how to handle bitops" - return NULL; - - default: - break; - }; - - /* should never occur */ - abort(); - return NULL; -} - -/* - * query_int() - * - * This function is used for the common case of queries that return a single - * integer value. - * - * NOTE: If more than one value is returned by the query, all but the first - * one will be ignored. - */ -static int -query_int(const struct lsqlite3_private * lsqlite3, - long long * pRet, - const char * pSql, - ...) -{ - int ret; - int bLoop; - char * p; - sqlite3_stmt * pStmt; - va_list args; - - /* Begin access to variable argument list */ - va_start(args, pSql); - - /* Format the query */ - if ((p = sqlite3_vmprintf(pSql, args)) == NULL) { - va_end(args); - return SQLITE_NOMEM; - } - - /* - * Prepare and execute the SQL statement. Loop allows retrying on - * certain errors, e.g. SQLITE_SCHEMA occurs if the schema changes, - * requiring retrying the operation. - */ - for (bLoop = TRUE; bLoop; ) { - - /* Compile the SQL statement into sqlite virtual machine */ - if ((ret = sqlite3_prepare(lsqlite3->sqlite, - p, - -1, - &pStmt, - NULL)) == SQLITE_SCHEMA) { - if (stmtGetEID != NULL) { - sqlite3_finalize(stmtGetEID); - stmtGetEID = NULL; - } - continue; - } else if (ret != SQLITE_OK) { - break; - } - - /* One row expected */ - if ((ret = sqlite3_step(pStmt)) == SQLITE_SCHEMA) { - if (stmtGetEID != NULL) { - sqlite3_finalize(stmtGetEID); - stmtGetEID = NULL; - } - (void) sqlite3_finalize(pStmt); - continue; - } else if (ret != SQLITE_ROW) { - (void) sqlite3_finalize(pStmt); - break; - } - - /* Get the value to be returned */ - *pRet = sqlite3_column_int64(pStmt, 0); - - /* Free the virtual machine */ - if ((ret = sqlite3_finalize(pStmt)) == SQLITE_SCHEMA) { - if (stmtGetEID != NULL) { - sqlite3_finalize(stmtGetEID); - stmtGetEID = NULL; - } - continue; - } else if (ret != SQLITE_OK) { - (void) sqlite3_finalize(pStmt); - break; - } - - /* - * Normal condition is only one time through loop. Loop is - * rerun in error conditions, via "continue", above. - */ - bLoop = FALSE; - } - - /* All done with variable argument list */ - va_end(args); - - - /* Free the memory we allocated for our query string */ - sqlite3_free(p); - - return ret; -} - -/* - * This is a bad hack to support ldap style comparisons whithin sqlite. - * val is the attribute in the row currently under test - * func is the desired test "<=" ">=" "~" ":" - * cmp is the value to compare against (eg: "test") - * attr is the attribute name the value of which we want to test - */ - -static void lsqlite3_compare(sqlite3_context *ctx, int argc, - sqlite3_value **argv) -{ - struct ldb_context *ldb = (struct ldb_context *)sqlite3_user_data(ctx); - const char *val = (const char *)sqlite3_value_text(argv[0]); - const char *func = (const char *)sqlite3_value_text(argv[1]); - const char *cmp = (const char *)sqlite3_value_text(argv[2]); - const char *attr = (const char *)sqlite3_value_text(argv[3]); - const struct ldb_attrib_handler *h; - struct ldb_val valX; - struct ldb_val valY; - int ret; - - switch (func[0]) { - /* greater */ - case '>': /* >= */ - h = ldb_attrib_handler(ldb, attr); - valX.data = (void *)cmp; - valX.length = strlen(cmp); - valY.data = (void *)val; - valY.length = strlen(val); - ret = h->comparison_fn(ldb, ldb, &valY, &valX); - if (ret >= 0) - sqlite3_result_int(ctx, 1); - else - sqlite3_result_int(ctx, 0); - return; - - /* lesser */ - case '<': /* <= */ - h = ldb_attrib_handler(ldb, attr); - valX.data = (void *)cmp; - valX.length = strlen(cmp); - valY.data = (void *)val; - valY.length = strlen(val); - ret = h->comparison_fn(ldb, ldb, &valY, &valX); - if (ret <= 0) - sqlite3_result_int(ctx, 1); - else - sqlite3_result_int(ctx, 0); - return; - - /* approx */ - case '~': - /* TODO */ - sqlite3_result_int(ctx, 0); - return; - - /* bitops */ - case ':': - /* TODO */ - sqlite3_result_int(ctx, 0); - return; - - default: - break; - } - - sqlite3_result_error(ctx, "Value must start with a special operation char (<>~:)!", -1); - return; -} - - -/* rename a record */ -static int lsqlite3_safe_rollback(sqlite3 *sqlite) -{ - char *errmsg; - int ret; - - /* execute */ - ret = sqlite3_exec(sqlite, "ROLLBACK;", NULL, NULL, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - printf("lsqlite3_safe_rollback: Error: %s\n", errmsg); - free(errmsg); - } - return -1; - } - - return 0; -} - -/* return an eid as result */ -static int lsqlite3_eid_callback(void *result, int col_num, char **cols, char **names) -{ - long long *eid = (long long *)result; - - if (col_num != 1) return SQLITE_ABORT; - if (strcasecmp(names[0], "eid") != 0) return SQLITE_ABORT; - - *eid = atoll(cols[0]); - return SQLITE_OK; -} - -/* - * add a single set of ldap message values to a ldb_message - */ -static int lsqlite3_search_callback(void *result, int col_num, char **cols, char **names) -{ - struct ldb_handle *handle = talloc_get_type(result, struct ldb_handle); - struct lsql_context *ac = talloc_get_type(handle->private_data, struct lsql_context); - struct ldb_message *msg; - long long eid; - int i; - - /* eid, dn, attr_name, attr_value */ - if (col_num != 4) - return SQLITE_ABORT; - - eid = atoll(cols[0]); - - if (eid != ac->current_eid) { /* here begin a new entry */ - - /* call the async callback for the last entry - * except the first time */ - if (ac->current_eid != 0) { - ac->ares->message = ldb_msg_canonicalize(ac->module->ldb, ac->ares->message); - if (ac->ares->message == NULL) - return SQLITE_ABORT; - - handle->status = ac->callback(ac->module->ldb, ac->context, ac->ares); - if (handle->status != LDB_SUCCESS) - return SQLITE_ABORT; - } - - /* start over */ - ac->ares = talloc_zero(ac, struct ldb_reply); - if (!ac->ares) - return SQLITE_ABORT; - - ac->ares->message = ldb_msg_new(ac->ares); - if (!ac->ares->message) - return SQLITE_ABORT; - - ac->ares->type = LDB_REPLY_ENTRY; - ac->current_eid = eid; - } - - msg = ac->ares->message; - - if (msg->dn == NULL) { - msg->dn = ldb_dn_explode(msg, cols[1]); - if (msg->dn == NULL) - return SQLITE_ABORT; - } - - if (ac->attrs) { - int found = 0; - for (i = 0; ac->attrs[i]; i++) { - if (strcasecmp(cols[2], ac->attrs[i]) == 0) { - found = 1; - break; - } - } - if (!found) return SQLITE_OK; - } - - if (ldb_msg_add_string(msg, cols[2], cols[3]) != 0) { - return SQLITE_ABORT; - } - - return SQLITE_OK; -} - - -/* - * lsqlite3_get_eid() - * lsqlite3_get_eid_ndn() - * - * These functions are used for the very common case of retrieving an EID value - * given a (normalized) DN. - */ - -static long long lsqlite3_get_eid_ndn(sqlite3 *sqlite, void *mem_ctx, const char *norm_dn) -{ - char *errmsg; - char *query; - long long eid = -1; - long long ret; - - /* get object eid */ - query = lsqlite3_tprintf(mem_ctx, "SELECT eid " - "FROM ldb_entry " - "WHERE norm_dn = '%q';", norm_dn); - if (query == NULL) return -1; - - ret = sqlite3_exec(sqlite, query, lsqlite3_eid_callback, &eid, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - printf("lsqlite3_get_eid: Fatal Error: %s\n", errmsg); - free(errmsg); - } - return -1; - } - - return eid; -} - -static long long lsqlite3_get_eid(struct ldb_module *module, const struct ldb_dn *dn) -{ - TALLOC_CTX *local_ctx; - struct lsqlite3_private *lsqlite3 = module->private_data; - long long eid = -1; - char *cdn; - - /* ignore ltdb specials */ - if (ldb_dn_is_special(dn)) { - return -1; - } - - /* create a local ctx */ - local_ctx = talloc_named(lsqlite3, 0, "lsqlite3_get_eid local context"); - if (local_ctx == NULL) { - return -1; - } - - cdn = ldb_dn_linearize(local_ctx, ldb_dn_casefold(module->ldb, local_ctx, dn)); - if (!cdn) goto done; - - eid = lsqlite3_get_eid_ndn(lsqlite3->sqlite, local_ctx, cdn); - -done: - talloc_free(local_ctx); - return eid; -} - -/* - * Interface functions referenced by lsqlite3_ops - */ - -/* search for matching records, by tree */ -int lsql_search(struct ldb_module *module, struct ldb_request *req) -{ - struct lsqlite3_private *lsqlite3 = talloc_get_type(module->private_data, struct lsqlite3_private); - struct lsql_context *lsql_ac; - char *norm_basedn; - char *sqlfilter; - char *errmsg; - char *query = NULL; - int ret; - - req->handle = init_handle(lsqlite3, module, req); - if (req->handle == NULL) { - return LDB_ERR_OPERATIONS_ERROR; - } - - lsql_ac = talloc_get_type(req->handle->private_data, struct lsql_context); - - if ((req->op.search.base == NULL || req->op.search.base->comp_num == 0) && - (req->op.search.scope == LDB_SCOPE_BASE || req->op.search.scope == LDB_SCOPE_ONELEVEL)) - return LDB_ERR_OPERATIONS_ERROR; - - if (req->op.search.base) { - norm_basedn = ldb_dn_linearize(lsql_ac, ldb_dn_casefold(module->ldb, lsql_ac, req->op.search.base)); - if (norm_basedn == NULL) { - ret = LDB_ERR_INVALID_DN_SYNTAX; - goto failed; - } - } else norm_basedn = talloc_strdup(lsql_ac, ""); - - /* Convert filter into a series of SQL conditions (constraints) */ - sqlfilter = parsetree_to_sql(module, lsql_ac, req->op.search.tree); - - switch(req->op.search.scope) { - case LDB_SCOPE_DEFAULT: - case LDB_SCOPE_SUBTREE: - if (*norm_basedn != '\0') { - query = lsqlite3_tprintf(lsql_ac, - "SELECT entry.eid,\n" - " entry.dn,\n" - " av.attr_name,\n" - " av.attr_value\n" - " FROM ldb_entry AS entry\n" - - " LEFT OUTER JOIN ldb_attribute_values AS av\n" - " ON av.eid = entry.eid\n" - - " WHERE entry.eid IN\n" - " (SELECT DISTINCT ldb_entry.eid\n" - " FROM ldb_entry\n" - " WHERE (ldb_entry.norm_dn GLOB('*,%q')\n" - " OR ldb_entry.norm_dn = '%q')\n" - " AND ldb_entry.eid IN\n" - " (%s)\n" - " )\n" - - " ORDER BY entry.eid ASC;", - norm_basedn, - norm_basedn, - sqlfilter); - } else { - query = lsqlite3_tprintf(lsql_ac, - "SELECT entry.eid,\n" - " entry.dn,\n" - " av.attr_name,\n" - " av.attr_value\n" - " FROM ldb_entry AS entry\n" - - " LEFT OUTER JOIN ldb_attribute_values AS av\n" - " ON av.eid = entry.eid\n" - - " WHERE entry.eid IN\n" - " (SELECT DISTINCT ldb_entry.eid\n" - " FROM ldb_entry\n" - " WHERE ldb_entry.eid IN\n" - " (%s)\n" - " )\n" - - " ORDER BY entry.eid ASC;", - sqlfilter); - } - - break; - - case LDB_SCOPE_BASE: - query = lsqlite3_tprintf(lsql_ac, - "SELECT entry.eid,\n" - " entry.dn,\n" - " av.attr_name,\n" - " av.attr_value\n" - " FROM ldb_entry AS entry\n" - - " LEFT OUTER JOIN ldb_attribute_values AS av\n" - " ON av.eid = entry.eid\n" - - " WHERE entry.eid IN\n" - " (SELECT DISTINCT ldb_entry.eid\n" - " FROM ldb_entry\n" - " WHERE ldb_entry.norm_dn = '%q'\n" - " AND ldb_entry.eid IN\n" - " (%s)\n" - " )\n" - - " ORDER BY entry.eid ASC;", - norm_basedn, - sqlfilter); - break; - - case LDB_SCOPE_ONELEVEL: - query = lsqlite3_tprintf(lsql_ac, - "SELECT entry.eid,\n" - " entry.dn,\n" - " av.attr_name,\n" - " av.attr_value\n" - " FROM ldb_entry AS entry\n" - - " LEFT OUTER JOIN ldb_attribute_values AS av\n" - " ON av.eid = entry.eid\n" - - " WHERE entry.eid IN\n" - " (SELECT DISTINCT ldb_entry.eid\n" - " FROM ldb_entry\n" - " WHERE norm_dn GLOB('*,%q')\n" - " AND NOT norm_dn GLOB('*,*,%q')\n" - " AND ldb_entry.eid IN\n(%s)\n" - " )\n" - - " ORDER BY entry.eid ASC;", - norm_basedn, - norm_basedn, - sqlfilter); - break; - } - - if (query == NULL) { - goto failed; - } - - /* * / - printf ("%s\n", query); - / * */ - - lsql_ac->current_eid = 0; - lsql_ac->attrs = req->op.search.attrs; - lsql_ac->ares = NULL; - - req->handle->state = LDB_ASYNC_PENDING; - - ret = sqlite3_exec(lsqlite3->sqlite, query, lsqlite3_search_callback, req->handle, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - ldb_set_errstring(module->ldb, errmsg); - free(errmsg); - } - goto failed; - } - - /* complete the last message if any */ - if (lsql_ac->ares) { - lsql_ac->ares->message = ldb_msg_canonicalize(module->ldb, lsql_ac->ares->message); - if (lsql_ac->ares->message == NULL) - goto failed; - - req->handle->status = lsql_ac->callback(module->ldb, lsql_ac->context, lsql_ac->ares); - if (req->handle->status != LDB_SUCCESS) - goto failed; - } - - req->handle->state = LDB_ASYNC_DONE; - - return LDB_SUCCESS; - -failed: - return LDB_ERR_OPERATIONS_ERROR; -} - -/* add a record */ -static int lsql_add(struct ldb_module *module, struct ldb_request *req) -{ - struct lsqlite3_private *lsqlite3 = talloc_get_type(module->private_data, struct lsqlite3_private); - struct lsql_context *lsql_ac; - struct ldb_message *msg = req->op.add.message; - long long eid; - char *dn, *ndn; - char *errmsg; - char *query; - int i; - int ret = LDB_SUCCESS; - - req->handle = init_handle(lsqlite3, module, req); - if (req->handle == NULL) { - return LDB_ERR_OPERATIONS_ERROR; - } - lsql_ac = talloc_get_type(req->handle->private_data, struct lsql_context); - req->handle->state = LDB_ASYNC_DONE; - req->handle->status = LDB_SUCCESS; - - /* See if this is an ltdb special */ - if (ldb_dn_is_special(msg->dn)) { - struct ldb_dn *c; - - c = ldb_dn_explode(lsql_ac, "@SUBCLASSES"); - if (ldb_dn_compare(module->ldb, msg->dn, c) == 0) { -#warning "insert subclasses into object class tree" - ret = LDB_ERR_UNWILLING_TO_PERFORM; - goto done; - } - -/* - c = ldb_dn_explode(local_ctx, "@INDEXLIST"); - if (ldb_dn_compare(module->ldb, msg->dn, c) == 0) { -#warning "should we handle indexes somehow ?" - ret = LDB_ERR_UNWILLING_TO_PERFORM; - goto done; - } -*/ - /* Others return an error */ - ret = LDB_ERR_UNWILLING_TO_PERFORM; - goto done; - } - - /* create linearized and normalized dns */ - dn = ldb_dn_linearize(lsql_ac, msg->dn); - ndn = ldb_dn_linearize(lsql_ac, ldb_dn_casefold(module->ldb, lsql_ac, msg->dn)); - if (dn == NULL || ndn == NULL) { - ret = LDB_ERR_OTHER; - goto done; - } - - query = lsqlite3_tprintf(lsql_ac, - /* Add new entry */ - "INSERT OR ABORT INTO ldb_entry " - "('dn', 'norm_dn') " - "VALUES ('%q', '%q');", - dn, ndn); - if (query == NULL) { - ret = LDB_ERR_OTHER; - goto done; - } - - ret = sqlite3_exec(lsqlite3->sqlite, query, NULL, NULL, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - ldb_set_errstring(module->ldb, errmsg); - free(errmsg); - } - ret = LDB_ERR_OTHER; - goto done; - } - - eid = lsqlite3_get_eid_ndn(lsqlite3->sqlite, lsql_ac, ndn); - if (eid == -1) { - ret = LDB_ERR_OTHER; - goto done; - } - - for (i = 0; i < msg->num_elements; i++) { - const struct ldb_message_element *el = &msg->elements[i]; - const struct ldb_attrib_handler *h; - char *attr; - int j; - - /* Get a case-folded copy of the attribute name */ - attr = ldb_attr_casefold(lsql_ac, el->name); - if (attr == NULL) { - ret = LDB_ERR_OTHER; - goto done; - } - - h = ldb_attrib_handler(module->ldb, el->name); - - /* For each value of the specified attribute name... */ - for (j = 0; j < el->num_values; j++) { - struct ldb_val value; - char *insert; - - /* Get a canonicalised copy of the data */ - h->canonicalise_fn(module->ldb, lsql_ac, &(el->values[j]), &value); - if (value.data == NULL) { - ret = LDB_ERR_OTHER; - goto done; - } - - insert = lsqlite3_tprintf(lsql_ac, - "INSERT OR ROLLBACK INTO ldb_attribute_values " - "('eid', 'attr_name', 'norm_attr_name'," - " 'attr_value', 'norm_attr_value') " - "VALUES ('%lld', '%q', '%q', '%q', '%q');", - eid, el->name, attr, - el->values[j].data, value.data); - if (insert == NULL) { - ret = LDB_ERR_OTHER; - goto done; - } - - ret = sqlite3_exec(lsqlite3->sqlite, insert, NULL, NULL, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - ldb_set_errstring(module->ldb, errmsg); - free(errmsg); - } - ret = LDB_ERR_OTHER; - goto done; - } - } - } - - if (lsql_ac->callback) { - req->handle->status = lsql_ac->callback(module->ldb, lsql_ac->context, NULL); - } - -done: - req->handle->state = LDB_ASYNC_DONE; - return ret; -} - -/* modify a record */ -static int lsql_modify(struct ldb_module *module, struct ldb_request *req) -{ - struct lsqlite3_private *lsqlite3 = talloc_get_type(module->private_data, struct lsqlite3_private); - struct lsql_context *lsql_ac; - struct ldb_message *msg = req->op.mod.message; - long long eid; - char *errmsg; - int i; - int ret = LDB_SUCCESS; - - req->handle = init_handle(lsqlite3, module, req); - if (req->handle == NULL) { - return LDB_ERR_OPERATIONS_ERROR; - } - lsql_ac = talloc_get_type(req->handle->private_data, struct lsql_context); - req->handle->state = LDB_ASYNC_DONE; - req->handle->status = LDB_SUCCESS; - - /* See if this is an ltdb special */ - if (ldb_dn_is_special(msg->dn)) { - struct ldb_dn *c; - - c = ldb_dn_explode(lsql_ac, "@SUBCLASSES"); - if (ldb_dn_compare(module->ldb, msg->dn, c) == 0) { -#warning "modify subclasses into object class tree" - ret = LDB_ERR_UNWILLING_TO_PERFORM; - goto done; - } - - /* Others return an error */ - ret = LDB_ERR_UNWILLING_TO_PERFORM; - goto done; - } - - eid = lsqlite3_get_eid(module, msg->dn); - if (eid == -1) { - ret = LDB_ERR_OTHER; - goto done; - } - - for (i = 0; i < msg->num_elements; i++) { - const struct ldb_message_element *el = &msg->elements[i]; - const struct ldb_attrib_handler *h; - int flags = el->flags & LDB_FLAG_MOD_MASK; - char *attr; - char *mod; - int j; - - /* Get a case-folded copy of the attribute name */ - attr = ldb_attr_casefold(lsql_ac, el->name); - if (attr == NULL) { - ret = LDB_ERR_OTHER; - goto done; - } - - h = ldb_attrib_handler(module->ldb, el->name); - - switch (flags) { - - case LDB_FLAG_MOD_REPLACE: - - /* remove all attributes before adding the replacements */ - mod = lsqlite3_tprintf(lsql_ac, - "DELETE FROM ldb_attribute_values " - "WHERE eid = '%lld' " - "AND norm_attr_name = '%q';", - eid, attr); - if (mod == NULL) { - ret = LDB_ERR_OTHER; - goto done; - } - - ret = sqlite3_exec(lsqlite3->sqlite, mod, NULL, NULL, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - ldb_set_errstring(module->ldb, errmsg); - free(errmsg); - } - ret = LDB_ERR_OTHER; - goto done; - } - - /* MISSING break is INTENTIONAL */ - - case LDB_FLAG_MOD_ADD: -#warning "We should throw an error if no value is provided!" - /* For each value of the specified attribute name... */ - for (j = 0; j < el->num_values; j++) { - struct ldb_val value; - - /* Get a canonicalised copy of the data */ - h->canonicalise_fn(module->ldb, lsql_ac, &(el->values[j]), &value); - if (value.data == NULL) { - ret = LDB_ERR_OTHER; - goto done; - } - - mod = lsqlite3_tprintf(lsql_ac, - "INSERT OR ROLLBACK INTO ldb_attribute_values " - "('eid', 'attr_name', 'norm_attr_name'," - " 'attr_value', 'norm_attr_value') " - "VALUES ('%lld', '%q', '%q', '%q', '%q');", - eid, el->name, attr, - el->values[j].data, value.data); - - if (mod == NULL) { - ret = LDB_ERR_OTHER; - goto done; - } - - ret = sqlite3_exec(lsqlite3->sqlite, mod, NULL, NULL, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - ldb_set_errstring(module->ldb, errmsg); - free(errmsg); - } - ret = LDB_ERR_OTHER; - goto done; - } - } - - break; - - case LDB_FLAG_MOD_DELETE: -#warning "We should throw an error if the attribute we are trying to delete does not exist!" - if (el->num_values == 0) { - mod = lsqlite3_tprintf(lsql_ac, - "DELETE FROM ldb_attribute_values " - "WHERE eid = '%lld' " - "AND norm_attr_name = '%q';", - eid, attr); - if (mod == NULL) { - ret = LDB_ERR_OTHER; - goto done; - } - - ret = sqlite3_exec(lsqlite3->sqlite, mod, NULL, NULL, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - ldb_set_errstring(module->ldb, errmsg); - free(errmsg); - } - ret = LDB_ERR_OTHER; - goto done; - } - } - - /* For each value of the specified attribute name... */ - for (j = 0; j < el->num_values; j++) { - struct ldb_val value; - - /* Get a canonicalised copy of the data */ - h->canonicalise_fn(module->ldb, lsql_ac, &(el->values[j]), &value); - if (value.data == NULL) { - ret = LDB_ERR_OTHER; - goto done; - } - - mod = lsqlite3_tprintf(lsql_ac, - "DELETE FROM ldb_attribute_values " - "WHERE eid = '%lld' " - "AND norm_attr_name = '%q' " - "AND norm_attr_value = '%q';", - eid, attr, value.data); - - if (mod == NULL) { - ret = LDB_ERR_OTHER; - goto done; - } - - ret = sqlite3_exec(lsqlite3->sqlite, mod, NULL, NULL, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - ldb_set_errstring(module->ldb, errmsg); - free(errmsg); - } - ret = LDB_ERR_OTHER; - goto done; - } - } - - break; - } - } - - if (lsql_ac->callback) { - req->handle->status = lsql_ac->callback(module->ldb, lsql_ac->context, NULL); - } - -done: - req->handle->state = LDB_ASYNC_DONE; - return ret; -} - -/* delete a record */ -static int lsql_delete(struct ldb_module *module, struct ldb_request *req) -{ - struct lsqlite3_private *lsqlite3 = talloc_get_type(module->private_data, struct lsqlite3_private); - struct lsql_context *lsql_ac; - long long eid; - char *errmsg; - char *query; - int ret = LDB_SUCCESS; - - - req->handle = init_handle(lsqlite3, module, req); - if (req->handle == NULL) { - return LDB_ERR_OPERATIONS_ERROR; - } - lsql_ac = talloc_get_type(req->handle->private_data, struct lsql_context); - req->handle->state = LDB_ASYNC_DONE; - req->handle->status = LDB_SUCCESS; - - eid = lsqlite3_get_eid(module, req->op.del.dn); - if (eid == -1) { - goto done; - } - - query = lsqlite3_tprintf(lsql_ac, - /* Delete entry */ - "DELETE FROM ldb_entry WHERE eid = %lld; " - /* Delete attributes */ - "DELETE FROM ldb_attribute_values WHERE eid = %lld; ", - eid, eid); - if (query == NULL) { - ret = LDB_ERR_OTHER; - goto done; - } - - ret = sqlite3_exec(lsqlite3->sqlite, query, NULL, NULL, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - ldb_set_errstring(module->ldb, errmsg); - free(errmsg); - } - req->handle->status = LDB_ERR_OPERATIONS_ERROR; - goto done; - } - - if (lsql_ac->callback) { - ret = lsql_ac->callback(module->ldb, lsql_ac->context, NULL); - } - -done: - req->handle->state = LDB_ASYNC_DONE; - return ret; -} - -/* rename a record */ -static int lsql_rename(struct ldb_module *module, struct ldb_request *req) -{ - struct lsqlite3_private *lsqlite3 = talloc_get_type(module->private_data, struct lsqlite3_private); - struct lsql_context *lsql_ac; - char *new_dn, *new_cdn, *old_cdn; - char *errmsg; - char *query; - int ret = LDB_SUCCESS; - - req->handle = init_handle(lsqlite3, module, req); - if (req->handle == NULL) { - return LDB_ERR_OPERATIONS_ERROR; - } - lsql_ac = talloc_get_type(req->handle->private_data, struct lsql_context); - req->handle->state = LDB_ASYNC_DONE; - req->handle->status = LDB_SUCCESS; - - /* create linearized and normalized dns */ - old_cdn = ldb_dn_linearize(lsql_ac, ldb_dn_casefold(module->ldb, lsql_ac, req->op.rename.olddn)); - new_cdn = ldb_dn_linearize(lsql_ac, ldb_dn_casefold(module->ldb, lsql_ac, req->op.rename.newdn)); - new_dn = ldb_dn_linearize(lsql_ac, req->op.rename.newdn); - if (old_cdn == NULL || new_cdn == NULL || new_dn == NULL) { - goto done; - } - - /* build the SQL query */ - query = lsqlite3_tprintf(lsql_ac, - "UPDATE ldb_entry SET dn = '%q', norm_dn = '%q' " - "WHERE norm_dn = '%q';", - new_dn, new_cdn, old_cdn); - if (query == NULL) { - goto done; - } - - /* execute */ - ret = sqlite3_exec(lsqlite3->sqlite, query, NULL, NULL, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - ldb_set_errstring(module->ldb, errmsg); - free(errmsg); - } - ret = LDB_ERR_OPERATIONS_ERROR; - goto done; - } - - if (lsql_ac->callback) { - ret = lsql_ac->callback(module->ldb, lsql_ac->context, NULL); - } - -done: - req->handle->state = LDB_ASYNC_DONE; - return ret; -} - -static int lsql_start_trans(struct ldb_module * module) -{ - int ret; - char *errmsg; - struct lsqlite3_private * lsqlite3 = module->private_data; - - if (lsqlite3->trans_count == 0) { - ret = sqlite3_exec(lsqlite3->sqlite, "BEGIN IMMEDIATE;", NULL, NULL, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - printf("lsqlite3_start_trans: error: %s\n", errmsg); - free(errmsg); - } - return -1; - } - }; - - lsqlite3->trans_count++; - - return 0; -} - -static int lsql_end_trans(struct ldb_module *module) -{ - int ret; - char *errmsg; - struct lsqlite3_private *lsqlite3 = module->private_data; - - if (lsqlite3->trans_count > 0) { - lsqlite3->trans_count--; - } else return -1; - - if (lsqlite3->trans_count == 0) { - ret = sqlite3_exec(lsqlite3->sqlite, "COMMIT;", NULL, NULL, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - printf("lsqlite3_end_trans: error: %s\n", errmsg); - free(errmsg); - } - return -1; - } - } - - return 0; -} - -static int lsql_del_trans(struct ldb_module *module) -{ - struct lsqlite3_private *lsqlite3 = module->private_data; - - if (lsqlite3->trans_count > 0) { - lsqlite3->trans_count--; - } else return -1; - - if (lsqlite3->trans_count == 0) { - return lsqlite3_safe_rollback(lsqlite3->sqlite); - } - - return -1; -} - -static int destructor(struct lsqlite3_private *lsqlite3) -{ - if (lsqlite3->sqlite) { - sqlite3_close(lsqlite3->sqlite); - } - return 0; -} - -static int lsql_request(struct ldb_module *module, struct ldb_request *req) -{ - return LDB_ERR_OPERATIONS_ERROR; -} - -static int lsql_wait(struct ldb_handle *handle, enum ldb_wait_type type) -{ - return handle->status; -} - -/* - * Table of operations for the sqlite3 backend - */ -static const struct ldb_module_ops lsqlite3_ops = { - .name = "sqlite", - .search = lsql_search, - .add = lsql_add, - .modify = lsql_modify, - .del = lsql_delete, - .rename = lsql_rename, - .request = lsql_request, - .start_transaction = lsql_start_trans, - .end_transaction = lsql_end_trans, - .del_transaction = lsql_del_trans, - .wait = lsql_wait, -}; - -/* - * Static functions - */ - -static int initialize(struct lsqlite3_private *lsqlite3, - struct ldb_context *ldb, const char *url, int flags) -{ - TALLOC_CTX *local_ctx; - long long queryInt; - int rollback = 0; - char *errmsg; - char *schema; - int ret; - - /* create a local ctx */ - local_ctx = talloc_named(lsqlite3, 0, "lsqlite3_rename local context"); - if (local_ctx == NULL) { - return -1; - } - - schema = lsqlite3_tprintf(local_ctx, - - - "CREATE TABLE ldb_info AS " - " SELECT 'LDB' AS database_type," - " '1.0' AS version;" - - /* - * The entry table holds the information about an entry. - * This table is used to obtain the EID of the entry and to - * support scope=one and scope=base. The parent and child - * table is included in the entry table since all the other - * attributes are dependent on EID. - */ - "CREATE TABLE ldb_entry " - "(" - " eid INTEGER PRIMARY KEY AUTOINCREMENT," - " dn TEXT UNIQUE NOT NULL," - " norm_dn TEXT UNIQUE NOT NULL" - ");" - - - "CREATE TABLE ldb_object_classes" - "(" - " class_name TEXT PRIMARY KEY," - " parent_class_name TEXT," - " tree_key TEXT UNIQUE," - " max_child_num INTEGER DEFAULT 0" - ");" - - /* - * We keep a full listing of attribute/value pairs here - */ - "CREATE TABLE ldb_attribute_values" - "(" - " eid INTEGER REFERENCES ldb_entry," - " attr_name TEXT," - " norm_attr_name TEXT," - " attr_value TEXT," - " norm_attr_value TEXT " - ");" - - - /* - * Indexes - */ - "CREATE INDEX ldb_attribute_values_eid_idx " - " ON ldb_attribute_values (eid);" - - "CREATE INDEX ldb_attribute_values_name_value_idx " - " ON ldb_attribute_values (attr_name, norm_attr_value);" - - - - /* - * Triggers - */ - - "CREATE TRIGGER ldb_object_classes_insert_tr" - " AFTER INSERT" - " ON ldb_object_classes" - " FOR EACH ROW" - " BEGIN" - " UPDATE ldb_object_classes" - " SET tree_key = COALESCE(tree_key, " - " (" - " SELECT tree_key || " - " (SELECT base160(max_child_num + 1)" - " FROM ldb_object_classes" - " WHERE class_name = " - " new.parent_class_name)" - " FROM ldb_object_classes " - " WHERE class_name = new.parent_class_name " - " ));" - " UPDATE ldb_object_classes " - " SET max_child_num = max_child_num + 1" - " WHERE class_name = new.parent_class_name;" - " END;" - - /* - * Table initialization - */ - - "INSERT INTO ldb_object_classes " - " (class_name, tree_key) " - " VALUES " - " ('TOP', '0001');"); - - /* Skip protocol indicator of url */ - if (strncmp(url, "sqlite3://", 10) != 0) { - return SQLITE_MISUSE; - } - - /* Update pointer to just after the protocol indicator */ - url += 10; - - /* Try to open the (possibly empty/non-existent) database */ - if ((ret = sqlite3_open(url, &lsqlite3->sqlite)) != SQLITE_OK) { - return ret; - } - - /* In case this is a new database, enable auto_vacuum */ - ret = sqlite3_exec(lsqlite3->sqlite, "PRAGMA auto_vacuum = 1;", NULL, NULL, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - printf("lsqlite3 initializaion error: %s\n", errmsg); - free(errmsg); - } - goto failed; - } - - if (flags & LDB_FLG_NOSYNC) { - /* DANGEROUS */ - ret = sqlite3_exec(lsqlite3->sqlite, "PRAGMA synchronous = OFF;", NULL, NULL, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - printf("lsqlite3 initializaion error: %s\n", errmsg); - free(errmsg); - } - goto failed; - } - } - - /* */ - - /* Establish a busy timeout of 30 seconds */ - if ((ret = sqlite3_busy_timeout(lsqlite3->sqlite, - 30000)) != SQLITE_OK) { - return ret; - } - - /* Create a function, callable from sql, to increment a tree_key */ - if ((ret = - sqlite3_create_function(lsqlite3->sqlite,/* handle */ - "base160_next", /* function name */ - 1, /* number of args */ - SQLITE_ANY, /* preferred text type */ - NULL, /* user data */ - base160next_sql, /* called func */ - NULL, /* step func */ - NULL /* final func */ - )) != SQLITE_OK) { - return ret; - } - - /* Create a function, callable from sql, to convert int to base160 */ - if ((ret = - sqlite3_create_function(lsqlite3->sqlite,/* handle */ - "base160", /* function name */ - 1, /* number of args */ - SQLITE_ANY, /* preferred text type */ - NULL, /* user data */ - base160_sql, /* called func */ - NULL, /* step func */ - NULL /* final func */ - )) != SQLITE_OK) { - return ret; - } - - /* Create a function, callable from sql, to perform various comparisons */ - if ((ret = - sqlite3_create_function(lsqlite3->sqlite, /* handle */ - "ldap_compare", /* function name */ - 4, /* number of args */ - SQLITE_ANY, /* preferred text type */ - ldb , /* user data */ - lsqlite3_compare, /* called func */ - NULL, /* step func */ - NULL /* final func */ - )) != SQLITE_OK) { - return ret; - } - - /* Begin a transaction */ - ret = sqlite3_exec(lsqlite3->sqlite, "BEGIN EXCLUSIVE;", NULL, NULL, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - printf("lsqlite3: initialization error: %s\n", errmsg); - free(errmsg); - } - goto failed; - } - rollback = 1; - - /* Determine if this is a new database. No tables means it is. */ - if (query_int(lsqlite3, - &queryInt, - "SELECT COUNT(*)\n" - " FROM sqlite_master\n" - " WHERE type = 'table';") != 0) { - goto failed; - } - - if (queryInt == 0) { - /* - * Create the database schema - */ - ret = sqlite3_exec(lsqlite3->sqlite, schema, NULL, NULL, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - printf("lsqlite3 initializaion error: %s\n", errmsg); - free(errmsg); - } - goto failed; - } - } else { - /* - * Ensure that the database we opened is one of ours - */ - if (query_int(lsqlite3, - &queryInt, - "SELECT " - " (SELECT COUNT(*) = 2" - " FROM sqlite_master " - " WHERE type = 'table' " - " AND name IN " - " (" - " 'ldb_entry', " - " 'ldb_object_classes' " - " ) " - " ) " - " AND " - " (SELECT 1 " - " FROM ldb_info " - " WHERE database_type = 'LDB' " - " AND version = '1.0'" - " );") != 0 || - queryInt != 1) { - - /* It's not one that we created. See ya! */ - goto failed; - } - } - - /* Commit the transaction */ - ret = sqlite3_exec(lsqlite3->sqlite, "COMMIT;", NULL, NULL, &errmsg); - if (ret != SQLITE_OK) { - if (errmsg) { - printf("lsqlite3: iniialization error: %s\n", errmsg); - free(errmsg); - } - goto failed; - } - - return SQLITE_OK; - -failed: - if (rollback) lsqlite3_safe_rollback(lsqlite3->sqlite); - sqlite3_close(lsqlite3->sqlite); - return -1; -} - -/* - * connect to the database - */ -static int lsqlite3_connect(struct ldb_context *ldb, - const char *url, - unsigned int flags, - const char *options[], - struct ldb_module **module) -{ - int i; - int ret; - struct lsqlite3_private * lsqlite3 = NULL; - - lsqlite3 = talloc(ldb, struct lsqlite3_private); - if (!lsqlite3) { - goto failed; - } - - lsqlite3->sqlite = NULL; - lsqlite3->options = NULL; - lsqlite3->trans_count = 0; - - ret = initialize(lsqlite3, ldb, url, flags); - if (ret != SQLITE_OK) { - goto failed; - } - - talloc_set_destructor(lsqlite3, destructor); - - - - *module = talloc(ldb, struct ldb_module); - if (!module) { - ldb_oom(ldb); - goto failed; - } - talloc_set_name_const(*module, "ldb_sqlite3 backend"); - (*module)->ldb = ldb; - (*module)->prev = (*module)->next = NULL; - (*module)->private_data = lsqlite3; - (*module)->ops = &lsqlite3_ops; - - if (options) { - /* - * take a copy of the options array, so we don't have to rely - * on the caller keeping it around (it might be dynamic) - */ - for (i=0;options[i];i++) ; - - lsqlite3->options = talloc_array(lsqlite3, char *, i+1); - if (!lsqlite3->options) { - goto failed; - } - - for (i=0;options[i];i++) { - - lsqlite3->options[i+1] = NULL; - lsqlite3->options[i] = - talloc_strdup(lsqlite3->options, options[i]); - if (!lsqlite3->options[i]) { - goto failed; - } - } - } - - return 0; - -failed: - if (lsqlite3->sqlite != NULL) { - (void) sqlite3_close(lsqlite3->sqlite); - } - talloc_free(lsqlite3); - return -1; -} - -int ldb_sqlite3_init(void) -{ - return ldb_register_backend("sqlite3", lsqlite3_connect); -} diff --git a/source3/lib/ldb/ldb_sqlite3/schema b/source3/lib/ldb/ldb_sqlite3/schema deleted file mode 100644 index 08dc50de08..0000000000 --- a/source3/lib/ldb/ldb_sqlite3/schema +++ /dev/null @@ -1,363 +0,0 @@ - -- ------------------------------------------------------ - - PRAGMA auto_vacuum=1; - - -- ------------------------------------------------------ - - BEGIN EXCLUSIVE; - - -- ------------------------------------------------------ - - CREATE TABLE ldb_info AS - SELECT 'LDB' AS database_type, - '1.0' AS version; - - /* - * Get the next USN value with: - * BEGIN EXCLUSIVE; - * UPDATE usn SET value = value + 1; - * SELECT value FROM usn; - * COMMIT; - */ - CREATE TABLE usn - ( - value INTEGER - ); - - CREATE TABLE ldb_object - ( - /* tree_key is auto-generated by the insert trigger */ - tree_key TEXT PRIMARY KEY, - - parent_tree_key TEXT, - dn TEXT, - - attr_name TEXT REFERENCES ldb_attributes, - attr_value TEXT, - - /* - * object_type can take on these values (to date): - * 1: object is a node of a DN - * 2: object is an attribute/value pair of its parent DN - */ - object_type INTEGER, - - /* - * if object_type is 1, the node can have children. - * this tracks the maximum previously assigned child - * number so we can generate a new unique tree key for - * a new child object. note that this is always incremented, - * so if children are deleted, this will not represent - * the _number_ of children. - */ - max_child_num INTEGER, - - /* - * Automatically maintained meta-data (a gift for metze) - */ - object_guid TEXT UNIQUE, - timestamp INTEGER, -- originating_time - invoke_id TEXT, -- GUID: originating_invocation_id - usn INTEGER, -- hyper: originating_usn - - /* do not allow duplicate name/value pairs */ - UNIQUE (parent_tree_key, attr_name, attr_value, object_type) - ); - - CREATE TABLE ldb_attributes - ( - attr_name TEXT PRIMARY KEY, - parent_tree_key TEXT, - - objectclass_p BOOLEAN DEFAULT 0, - - case_insensitive_p BOOLEAN DEFAULT 0, - wildcard_p BOOLEAN DEFAULT 0, - hidden_p BOOLEAN DEFAULT 0, - integer_p BOOLEAN DEFAULT 0, - - /* tree_key is auto-generated by the insert trigger */ - tree_key TEXT, -- null if not a object/sub class - -- level 1 if an objectclass - -- level 1-n if a subclass - max_child_num INTEGER - ); - - -- ------------------------------------------------------ - - CREATE INDEX ldb_object_dn_idx - ON ldb_object (dn); - - CREATE INDEX ldb_attributes_tree_key_ids - ON ldb_attributes (tree_key); - - -- ------------------------------------------------------ - - /* Gifts for metze. Automatically updated meta-data */ - CREATE TRIGGER ldb_object_insert_tr - AFTER INSERT - ON ldb_object - FOR EACH ROW - BEGIN - UPDATE ldb_object - SET max_child_num = max_child_num + 1 - WHERE tree_key = new.parent_tree_key; - UPDATE usn SET value = value + 1; - UPDATE ldb_object - SET tree_key = - (SELECT - new.tree_key || - base160(SELECT max_child_num - FROM ldb_object - WHERE tree_key = - new.parent_tree_key)); - max_child_num = 0, - object_guid = random_guid(), - timestamp = strftime('%s', 'now'), - usn = (SELECT value FROM usn); - WHERE tree_key = new.tree_key; - END; - - CREATE TRIGGER ldb_object_update_tr - AFTER UPDATE - ON ldb_object - FOR EACH ROW - BEGIN - UPDATE usn SET value = value + 1; - UPDATE ldb_object - SET timestamp = strftime('%s', 'now'), - usn = (SELECT value FROM usn); - WHERE tree_key = new.tree_key; - END; - - CREATE TRIGGER ldb_attributes_insert_tr - AFTER INSERT - ON ldb_attributes - FOR EACH ROW - BEGIN - UPDATE ldb_attributes - SET max_child_num = max_child_num + 1 - WHERE tree_key = new.parent_tree_key; - UPDATE ldb_attributes - SET tree_key = - (SELECT - new.tree_key || - base160(SELECT max_child_num - FROM ldb_attributes - WHERE tree_key = - new.parent_tree_key)); - max_child_num = 0 - WHERE tree_key = new.tree_key; - END; - - - -- ------------------------------------------------------ - - /* Initialize usn */ - INSERT INTO usn (value) VALUES (0); - - /* Create root object */ - INSERT INTO ldb_object - (tree_key, parent_tree_key, - dn, - object_type, max_child_num) - VALUES ('', NULL, - '', - 1, 0); - - /* We need an implicit "top" level object class */ - INSERT INTO ldb_attributes (attr_name, - parent_tree_key) - SELECT 'top', ''; - - -- ------------------------------------------------------ - - COMMIT; - - -- ------------------------------------------------------ - -/* - * dn: o=University of Michigan,c=US - * objectclass: organization - * objectclass: domainRelatedObject - */ --- newDN -BEGIN; - -INSERT OR IGNORE INTO ldb_object - (parent_tree_key - dn, - attr_name, attr_value, object_type, max_child_num) - VALUES ('', - 'c=US', - 'c', 'US', 1, 0); - -INSERT INTO ldb_object - (parent_tree_key, - dn, - attr_name, attr_value, object_type, max_child_num) - VALUES ('0001', - 'o=University of Michigan,c=US', - 'o', 'University of Michigan', 1, 0); - --- newObjectClass -INSERT OR IGNORE INTO ldb_attributes - (attr_name, parent_tree_key, objectclass_p) - VALUES - ('objectclass', '', 1); - -INSERT INTO ldb_object - (parent_tree_key, - dn, - attr_name, attr_value, object_type, max_child_num) - VALUES ('00010001', - NULL, - 'objectclass', 'organization', 2, 0); - -INSERT OR IGNORE INTO ldb_attributes - (attr_name, parent_tree_key, objectclass_p) - VALUES - ('objectclass', '', 1); - -INSERT INTO ldb_object - (parent_tree_key, - dn, - attr_name, attr_value, object_type, max_child_num) - VALUES ('00010001', - NULL, - 'objectclass', 'domainRelatedObject', 2, 0); - -COMMIT; - - -/* - * dn: o=University of Michigan,c=US - * l: Ann Arbor, Michigan - * st: Michigan - * o: University of Michigan - * o: UMICH - * seeAlso: - * telephonenumber: +1 313 764-1817 - */ --- addAttrValuePair -BEGIN; - -INSERT INTO ldb_object - (parent_tree_key, dn, - attr_name, attr_value, object_type, max_child_num) - VALUES ('00010001', NULL, - 'l', 'Ann Arbor, Michigan', 2, 0); - -INSERT INTO ldb_object - (parent_tree_key, dn, - attr_name, attr_value, object_type, max_child_num) - VALUES ('00010001', NULL, - 'st', 'Michigan', 2, 0); - -INSERT INTO ldb_object - (parent_tree_key, dn, - attr_name, attr_value, object_type, max_child_num) - VALUES ('00010001', NULL, - 'o', 'University of Michigan', 2, 0); - -INSERT INTO ldb_object - (parent_tree_key, dn, - attr_name, attr_value, object_type, max_child_num) - VALUES ('00010001', NULL, - 'o', 'UMICH', 2, 0); - -INSERT INTO ldb_object - (parent_tree_key, dn, - attr_name, attr_value, object_type, max_child_num) - VALUES ('00010001', NULL, - 'seeAlso', '', 2, 0); - -INSERT INTO ldb_object - (parent_tree_key, dn, - attr_name, attr_value, object_type, max_child_num) - VALUES ('00010001', NULL, - 'telephonenumber', '+1 313 764-1817', 2, 0); - -COMMIT; - --- ---------------------------------------------------------------------- - -/* - * dn: @ATTRIBUTES - * uid: CASE_INSENSITIVE WILDCARD - * cn: CASE_INSENSITIVE - * ou: CASE_INSENSITIVE - * dn: CASE_INSENSITIVE - */ --- newAttribute - -BEGIN; - -INSERT OR IGNORE INTO ldb_attributes - (attr_name, parent_tree_key, objectclass_p) - VALUES - ('uid', '', 0); - -UPDATE ldb_attributes - SET case_insensitive_p = 1, - wildcard_p = 1, - hidden_p = 0, - integer_p = 0 - WHERE attr_name = 'uid' - -UPDATE ldb_attributes - SET case_insensitive_p = 1, - wildcard_p = 0, - hidden_p = 0, - integer_p = 0 - WHERE attr_name = 'cn' - -UPDATE ldb_attributes - SET case_insensitive_p = 1, - wildcard_p = 0, - hidden_p = 0, - integer_p = 0 - WHERE attr_name = 'ou' - -UPDATE ldb_attributes - SET case_insensitive_p = 1, - wildcard_p = 0, - hidden_p = 0, - integer_p = 0 - WHERE attr_name = 'dn' - --- ---------------------------------------------------------------------- - -/* - * dn: @SUBCLASSES - * top: domain - * top: person - * domain: domainDNS - * person: organizationalPerson - * person: fooPerson - * organizationalPerson: user - * organizationalPerson: OpenLDAPperson - * user: computer - */ --- insertSubclass - -/* NOT YET UPDATED!!! * - - -INSERT OR REPLACE INTO ldb_object_classes (class_name, tree_key) - SELECT 'domain', /* next_tree_key('top') */ '00010001'; -INSERT OR REPLACE INTO ldb_object_classes (class_name, tree_key) - SELECT 'person', /* next_tree_key('top') */ '00010002'; -INSERT OR REPLACE INTO ldb_object_classes (class_name, tree_key) - SELECT 'domainDNS', /* next_tree_key('domain') */ '000100010001'; -INSERT OR REPLACE INTO ldb_object_classes (class_name, tree_key) - SELECT 'organizationalPerson', /* next_tree_key('person') */ '000100020001'; -INSERT OR REPLACE INTO ldb_object_classes (class_name, tree_key) - SELECT 'fooPerson', /* next_tree_key('person') */ '000100020002'; -INSERT OR REPLACE INTO ldb_object_classes (class_name, tree_key) - SELECT 'user', /* next_tree_key('organizationalPerson') */ '0001000200010001'; -INSERT OR REPLACE INTO ldb_object_classes (class_name, tree_key) - SELECT 'OpenLDAPperson', /* next_tree_key('organizationPerson') */ '0001000200010002'; -INSERT OR REPLACE INTO ldb_object_classes (class_name, tree_key) - SELECT 'computer', /* next_tree_key('user') */ '0001000200010001'; - diff --git a/source3/lib/ldb/ldb_sqlite3/trees.ps b/source3/lib/ldb/ldb_sqlite3/trees.ps deleted file mode 100644 index 433a064816..0000000000 --- a/source3/lib/ldb/ldb_sqlite3/trees.ps +++ /dev/null @@ -1,1760 +0,0 @@ -%!PS-Adobe-2.0 -%%Creator: dvips(k) 5.86 Copyright 1999 Radical Eye Software -%%Title: trees.dvi -%%Pages: 7 -%%PageOrder: Ascend -%%BoundingBox: 0 0 596 842 -%%EndComments -%DVIPSWebPage: (www.radicaleye.com) -%DVIPSCommandLine: dvips -f trees.dvi 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-(wnside)h(of)h(the)g(metho)r(d)g(is)f(that)h(the)g(primary)f(k)n(ey)f -(in)i(the)g(tree)f(needs)h(to)f(b)r(e)h(a)g(v)-5 b(ariable)29 -b(size)118 5082 y(text)j(\034eld,)h(and)f(that)g(the)g(iden)n -(ti\034ers)f(ma)n(y)g(b)r(e)i(extremelly)e(long)g(for)g(deep)h(trees.) -49 b(W)-7 b(e)32 b(will)g(pro)n(vide)e(estimates)i(of)118 -5181 y(the)c(size)f(required)g(as)g(a)g(function)h(of)g(the)f -(magnitude)h(of)f(the)h(tree.)1987 5653 y(1)p eop -%%Page: 2 2 -2 1 bop 118 291 a Fi(2)131 b(Genealogical)45 b(iden)l(ti\034ers)g(for)f -(trees)118 489 y Fm(2.1)112 b(De\034nition)118 642 y -Fh(W)-7 b(e)28 b(de\034ne)g Fe(gene)l(alo)l(gic)l(al)k(identi\034ers)j -Fh(recursiv)n(ely)25 b(as)i(follo)n(ws:)326 808 y Fg(De\034nition:)59 -b Fe(The)42 b(gene)l(alo)l(gic)l(al)h(identi\034er)f(\(gID\))e(of)i(a)f -(no)l(de)h(is)f(obtaine)l(d)h(by)g(app)l(ending)g(a)f(child)326 -908 y(identi\034er)30 b(to)g(the)g(gene)l(alo)l(gic)l(al)h -(identi\034er)g(of)f(the)g(p)l(ar)l(ent)f(no)l(de.)243 -1074 y Fh(Remark)40 b(that)h(genealogical)e(iden)n(ti\034ers)i(are)f -(rather)g(w)n(ell)h(kno)n(wn)f(and)h(used;)48 b(common)41 -b(examples)f(are)g(the)118 1174 y(\020path+\034le-name\021)33 -b(in)28 b(a)f(computer)g(\034le)h(system)f(and)h(the)f(URLs)h(within)g -(a)f(WWW.)243 1273 y(The)d(name)g(\020genealogical)e(iden)n -(ti\034er\021)30 b(is)24 b(suggested)g(b)n(y)g(the)g(fact)h(that)f(the) -h(v)-5 b(alue)24 b(of)g(the)h(iden)n(ti\034er)f(con)n(tains)f(the)118 -1373 y(complete)30 b(genealogy)d(of)j(the)g(no)r(de:)41 -b(it)30 b(con)n(tains)e(as)h(a)h(substring)f(the)h(gID)f(of)h(its)g -(father,)g(whic)n(h)f(in)h(turn)g(con)n(tains)118 1472 -y(as)d(a)g(substring)g(the)h(gID)g(of)f(the)h(grandfather,)e(.)14 -b(.)g(.)243 1572 y(The)27 b(ro)r(ot)g(no)r(de)h(of)f(the)h(tree)f(has)g -(a)h(gID)f(with)h(v)-5 b(alue)28 b(\021)34 b(\(the)28 -b(empt)n(y)g(string\),)f(as)g(it)h(has)f(no)g(paren)n(t.)118 -1804 y Fm(2.2)112 b(Child)36 b(iden)m(ti\034ers)118 1958 -y Fh(The)26 b(ob)n(vious)e(c)n(hild)i(iden)n(ti\034er)g(is)f(a)h -(zero-based)d(coun)n(ter:)35 b(iden)n(tify)26 b(the)h(c)n(hild)e(b)n(y) -h(the)g(n)n(um)n(b)r(er)f(of)h(older)f(brethren)g(it)118 -2057 y(has.)243 2157 y(W)-7 b(e)25 b(could)f(represen)n(t)g(the)h(coun) -n(ter)f(in)h(base)f(10;)h(this)g(ho)n(w)n(ev)n(er)e(is)i(extremely)f(w) -n(asteful)g(of)h(resources.)34 b(It)25 b(is)g(m)n(uc)n(h)118 -2257 y(b)r(etter)33 b(to)f(represen)n(t)f(the)h(coun)n(ter)g(in)g(as)g -(large)e(a)i(base)g(as)f(p)r(ossible:)46 b(in)n(terpret)32 -b(as)f(n)n(um)n(b)r(ers)h(a)g(set)g(of)g(c)n(haracters)118 -2356 y(larger)26 b(than)h({0,1,.)14 b(.)g(.)g(9}.)243 -2456 y(As)26 b(tree)f(op)r(erations)f(will)i(in)n(v)n(olv)n(e)f(string) -g(op)r(erations)f(on)i(the)g(indices,)g(in)g(order)f(to)g(a)n(v)n(oid)g -(a)g(\020quoting)g(hell\021)33 b(it)26 b(is)118 2555 -y(desirable)d(to)h(a)n(v)n(oid)e(using)h(an)n(y)g(c)n(haracter)f(with)i -(a)g(sp)r(ecial)f(meaning)h(in)g(LIKE)g(expressions)e(or)g(regular)g -(expressions;)118 2655 y(i.e.,)28 b(w)n(e)f(will)h(not)f(use)h(an)n(y)f -(of)g(the)h(sym)n(b)r(ols)70 b Fd(.)44 b(*)f(^)g(\\)g([)g(])g({)h(})f -(\()g(\))g(<)g(>)71 b Fh(?)37 b(|)28 b(&)f($)243 2755 -y(W)-7 b(e)28 b(prop)r(ose)e(to)h(reserv)n(e)f(also)g(/)i(as)f(a)g -(separator)e(\(see)i(\020V)-7 b(ariable)27 b(Sized)g(gID\021)34 -b(b)r(elo)n(w\).)243 2854 y(If)g(w)n(e)f(limit)i(ourselv)n(es)d(to)i -(ascii)f(c)n(haracters,)g(and)h(a)n(v)n(oid)e(to)i(b)r(e)g(safe)f(a)h -(lot)g(of)g(other)f(c)n(haracters,)g(w)n(e)g(can)h(use)118 -2954 y(n)n(um)n(b)r(ers)27 b(in)h(base)f(64)g(b)n(y)g(represen)n(ting) -243 3120 y Ff(\017)41 b Fh(0-9)26 b(with)i('0'-'9')f(\(dec)g(ascii)g -(co)r(de)h(48-57\))243 3286 y Ff(\017)41 b Fh(10)26 b(with)i(':')37 -b(\(dec)28 b(ascii)f(co)r(de)h(58\))243 3452 y Ff(\017)41 -b Fh(11)26 b(with)i(';')g(\(dec)g(ascii)f(co)r(de)g(59\))243 -3618 y Ff(\017)41 b Fh(12-37)25 b(with)j('A'-'Z')g(\(dec)f(ascii)g(co)r -(de)h(65-90\))243 3784 y Ff(\017)41 b Fh(38-63)25 b(with)j('a'-'z')f -(\(dec)h(ascii)f(co)r(de)g(97-122\))118 3950 y(By)g(using)g(base)f(64,) -h(up)g(to)h(4096)d(c)n(hildren)i(can)f(b)r(e)i(represen)n(ted)e(using)h -(t)n(w)n(o)f(suc)n(h)h(digits,)g(up)h(to)f(262144)d(with)k(three)118 -4050 y(digits,)g(and)f(up)h(to)f(16777216)d(with)k(four)f(digits.)243 -4149 y(If)37 b(the)g(RDBMs)g(supp)r(orts)f(in)n(ternational)g(c)n -(haracters,)h(it)g(is)g(p)r(ossible)f(to)h(further)f(increase)g(the)h -(base;)k(as)36 b(an)118 4249 y(example,)30 b(b)n(y)f(using)g(the)h(95)f -(additional)g(c)n(haracters)e(of)i(the)h(latin-1)f(c)n(haracter)e(set,) -k(w)n(e)e(could)g(co)r(de)g(n)n(um)n(b)r(ers)g(in)h(a)118 -4349 y(base)f(up)g(to)g(160)f(\025)g(remark)g(that)h(ev)n(ery)f(single) -h(digit)g(is)g(still)h(one)e(b)n(yte)h(in)h(this)f(represen)n(tation.) -40 b(This)29 b(means)f(that)118 4448 y(w)n(e)f(expand)h(the)f(sym)n(b)r -(ols)g(ab)r(o)n(v)n(e)f(b)n(y)i(represen)n(ting)243 4614 -y Ff(\017)41 b Fh(64-159)25 b(with)j(dec)f(latin1)g(co)r(de)h(160-255) -243 4780 y(In)23 b(base)g(160,)g(up)g(to)h(25600)d(c)n(hildren)i(can)f -(b)r(e)i(represen)n(ted)e(using)h(t)n(w)n(o)g(digits,)h(up)g(to)f -(4096000)d(with)k(three)f(digits,)118 4880 y(and)28 b(up)f(to)h -(6.5E+08)e(with)i(four)f(digits.)243 4980 y(Remark)g(that)h(base)f(con) -n(v)n(ersions)f(only)h(need)i(to)e(b)r(e)i(p)r(erformed)e(at)h -(insertion)g(time,)g(when)h(the)f(index)g(of)g(a)g(new)118 -5079 y(no)r(de)g(is)f(computed.)37 b(They)28 b(will)f(therefore)g(only) -g(ha)n(v)n(e)f(an)i(impact)f(on)h(insertion)f(timings.)1987 -5653 y(2)p eop -%%Page: 3 3 -3 2 bop 118 291 a Fm(2.3)112 b(Coun)m(ters:)50 b(\020delimited\021)44 -b(vs.)51 b(\020\034xed)38 b(size\021)118 444 y Fh(The)33 -b(standard)g(represen)n(tation)e(of)i(gID)h(uses)e(a)h(v)-5 -b(ariable)32 b(size)h(c)n(hild)h(iden)n(ti\034er,)g(and)f(delimiters)g -(to)h(separate)d(the)118 543 y(gID)f(of)g(the)h(c)n(hild)f(no)r(de)g -(from)f(the)i(gID)f(of)g(its)g(paren)n(t.)43 b(F)-7 b(or)30 -b(example,)g(w)n(e)g(can)f(represen)n(t)g(the)i(\034fth)g(c)n(hild)f -(of)g(no)r(de)118 643 y('/23/27/1')24 b(as)j('/23/27/1/4'.)32 -b(Let)c(us)f(call)g(this)h(a)f Fg(vgID)h Fh(represen)n(tation)e(\(V)-7 -b(ariable)27 b(Size)h(Genealogical)d(ID\).)243 743 y(This)30 -b(represen)n(tation)f(allo)n(ws)f(for)i(an)n(y)g(n)n(um)n(b)r(er)g(of)g -(c)n(hildren)g(of)h(a)f(no)r(de,)h(sub)5 b(ject)30 b(only)g(to)g(the)h -(limitations)f(the)118 842 y(RDBMS)e(ma)n(y)f(ha)n(v)n(e)f(as)h(to)h -(the)g(length)f(of)h(a)f(v)-5 b(ariable)27 b(sized)g(string.)243 -942 y(Alternativ)n(ely)-7 b(,)24 b(w)n(e)f(could)h(c)n(ho)r(ose)f(to)h -(limit)g(from)g(the)g(outset)g(the)g(quan)n(tit)n(y)g(of)f(c)n(hildren) -h(that)g(a)g(no)r(de)g(ma)n(y)f(ha)n(v)n(e;)118 1042 -y(this)28 b(limit)g(w)n(ould)f(dep)r(end)i(of)e(course)f(on)i(the)g -(application.)36 b(Let)27 b(us)h(call)f(this)h(a)f Fg(fgID)h -Fh(represen)n(tation.)243 1141 y(F)-7 b(or)25 b(example,)h(if)g(no)g -(no)r(de)f(is)h(allo)n(w)n(ed)f(to)g(ha)n(v)n(e)g(more)g(than)h(25600)d -(c)n(hildren,)j(w)n(e)g(could)f(represen)n(t)g(the)h(coun)n(ters)118 -1241 y(alw)n(a)n(ys)36 b(with)i(2)f(digits.)67 b(The)38 -b(no)r(de)f(whic)n(h)h(w)n(as)f(previously)f('/23/27/1/4')d(is)k(no)n -(w)g('23270104'.)64 b(If)38 b(w)n(e)f(require)118 1340 -y(a)g(three)g(digit)h(represen)n(tation)d(of)i(no)r(des)g(\(up)h(to)f -(ab)r(out)h(4)f(million)g(c)n(hildren\),)j(then)d(it)h(will)g(b)r(e)f -(represen)n(ted)f(as)118 1440 y('023027001004'.)118 1672 -y Fm(2.4)112 b(Ordering)37 b(of)h(no)s(des)118 1825 y -Fh(F)-7 b(or)35 b(some)g(applications)g(it)h(is)f(necessary)f(to)i -(obtain)f(subtrees)g(ordered)f(according)g(to)i(some)f(sp)r(ecial)g -(rules.)60 b(F)-7 b(or)118 1925 y(instance:)220 2090 -y(1.)41 b(the)34 b(complete)g(subtree)f(starting)g(at)h(a)f(no)r(de)h -(is)g(listed)g(immediately)g(after)f(the)i(no)r(de)f(in)g(question)f -(\(\020depth)326 2189 y(\034rst\021\))220 2354 y(2.)41 -b(no)r(des)27 b(with)h(a)f(common)g(paren)n(t)g(are)g(listed)g(c)n -(hronologically)243 2519 y(F)-7 b(or)39 b(instance,)k(the)d(displa)n(y) -f(of)h(an)f(organization)f(c)n(hart)h(is)g(usually)h(required)e(to)i -(satisfy)g(at)f(least)h(the)g(\034rst)118 2619 y(condition.)h(In)29 -b(a)g(threaded)f(discussion)h(group)e(one)i(wishes)g(to)f(satisfy)h(b)r -(oth)h(conditions)e(to)h(displa)n(y)f(the)h(messages)118 -2718 y(in)20 b(a)g(thread)g(\025)f(the)i(threads)e(themselv)n(es)h -(\(i.e.,)i(c)n(hildren)e(of)g(the)g(ro)r(ot)f(no)r(de\))i(are)e -(usually)g(listed)i(in)f(in)n(v)n(erse)f(c)n(hronolical)118 -2818 y(order.)243 2917 y(T)-7 b(o)35 b(mak)n(e)f(a)h(particular)f -(ordering)g(e\036cien)n(t,)j(it)f(w)n(ould)f(b)r(e)h(a)f(nice)g -(feature)g(if)h(it)g(could)f(b)r(e)h(made)f(to)g(coincide)118 -3017 y(with)28 b(a)f(lexicographic)f(ordering)f(of)j(the)g(indices)f -(\025i.e.,)g(as)g(pro)r(duced)g(b)n(y)h(an)f(\020ORDER)h(BY)f(id)h -(ASC\021)35 b(in)27 b(SQL.)h(The)118 3117 y(lexicographic)d(ordering)h 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Fh(c)n(hildren)f(\(actually)-7 -b(,)118 4607 y(this)32 b(is)g(a)f(non-issue\),)h(and)f(\(c\))h(the)g -(index)g(structure)f(is)h(redundan)n(t,)g(some)f(formally)f(correct)h -(indices)g(are)g(in)n(v)-5 b(alid)118 4707 y(\025e.g.,)24 -b(/316/013/11.)30 b(The)24 b(third)g(issue)g(can)g(b)r(e)g(addressed)f -(b)n(y)g(k)n(eeping)g(a)h(strict)g(con)n(trol)e(on)i(the)g(generation)f -(of)h(new)118 4807 y(indices)k(to)f(insure)g(that)h(all)f(indices)h -(are)e(formally)h(correct.)243 4906 y(The)32 b(issue)f(of)h(the)g(rev)n -(erse)e(c)n(hronological)f(indexing)j(of)f(threads)h(in)g(threaded)f -(discussion)g(groups)g(can)g(b)r(e)h(ad-)118 5006 y(dressed)d(easily)f -(enough)h(in)h(fgID:)f(coun)n(t)g(\020do)n(wn\021)36 -b(instead)29 b(of)g(\020up\021)36 b(the)30 b(c)n(hildren)f(of)g(the)h -(ro)r(ot)e(no)r(de)i(\025)f(this)h(implies)118 5106 y(only)e(an)g -(inconsequen)n(tial)f(mo)r(di\034cation)h(of)g(the)g(no)r(de)h -(insertion)e(routine,)h(as)g(sho)n(wn)f(b)r(elo)n(w.)38 -b(The)29 b(problem)e(is)h(less)118 5205 y(trivial)i(with)g(vgID;)h(in)f -(this)h(case,)f(ma)n(yb)r(e)f(a)h(thread)g(iden)n(ti\034er)g(should)g -(b)r(e)h(k)n(ept)f(in)g(a)g(di\033eren)n(t)g(\034eld)h(-)f(i.e.,)h -(repre-)118 5305 y(sen)n(ting)h(the)h(structure)f(as)g(a)h(forest)f -(rather)f(than)i(a)f(tree,)i(where)e(the)h(thread_id)f(\034eld)h -(selects)f(the)h(\020tree\021)38 b(in)33 b(the)118 5404 -y(forest.)1987 5653 y(3)p eop -%%Page: 4 4 -4 3 bop 118 291 a Fi(3)131 b(T)-11 b(ree)45 b(op)t(erations)e(using)h -(genealogical)g(indices)118 472 y Fh(In)32 b(this)f(section)g(w)n(e)g -(sho)n(w)g(ho)n(w)g(to)g(implemen)n(t)h(v)-5 b(arious)30 -b(tree)h(op)r(erations)f(using)h(gID)g(as)g(the)h(primary)e(k)n(ey)h -(in)g(the)118 572 y(no)r(de)d(table.)243 672 y(Some)h(implemen)n -(tation)h(issues)g(are)f(relev)-5 b(an)n(t)29 b(here,)h(esp)r(ecially)f -(concerning)g(the)h(utilisation)g(of)g(indices)g(b)n(y)f(the)118 -771 y(DB)f(engine.)243 871 y(W)-7 b(e)28 b(discuss)f(a)g(tree)g 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b(the)h(direct)f(c)m(hildren)g(of)i(a)g(no)s(de)118 -4382 y Fg(Cost:)f Fe(index)30 b(sc)l(an)g(of)g(the)g(tr)l(e)l(e)243 -4562 y Ff(\017)41 b Fg(vgID:)27 b Fh(The)h(direct)f(c)n(hildren)g(of)h -(/26/5/7)c(are)j(selected)g(b)n(y)508 4727 y Fd(...)43 -b(WHERE)e(id)i(LIKE)f('/26/5/7/\045')d(AND)j(id)h(NOT)f(LIKE)g -('26/5/7/\045/\045')243 4892 y Ff(\017)f Fg(m-vgID:)26 -b Fh(The)h(direct)h(c)n(hildren)f(of)g(/26/5/7)e(are)h(selected)i(b)n -(y)508 5056 y Fd(...)43 b(WHERE)e(id)i(LIKE)f('/126/06/07/\045')37 -b(AND)43 b(id)f(NOT)h(LIKE)f('/126/05/07/\045/\045)o(')243 -5221 y Ff(\017)f Fg(fgID:)27 b Fh(The)h(direct)f(c)n(hildren)g(of)h -(260507)c(are)j(selected)g(b)n(y)508 5386 y Fd(...)43 -b(WHERE)e(id)i(LIKE)f('260507\045')d(AND)k(char_length\(id\))37 -b(=)43 b(\(char_length\('26)o(05)o(07')o(\)+)o(2\))1987 -5653 y Fh(4)p eop -%%Page: 5 5 -5 4 bop 118 291 a Fm(3.4)112 b(Inserting)37 b(a)h(no)s(de)g(or)f(a)h -(subtree)118 444 y Fg(Cost:)f Fe(index)30 b(sc)l(an)g(of)g(the)g(tr)l 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