-/*
- Bacula® - The Network Backup Solution
-
- Copyright (C) 2000-2007 Free Software Foundation Europe e.V.
-
- The main author of Bacula is Kern Sibbald, with contributions from
- many others, a complete list can be found in the file AUTHORS.
- This program is Free Software; you can redistribute it and/or
- modify it under the terms of version two of the GNU General Public
- License as published by the Free Software Foundation and included
- in the file LICENSE.
-
- This program 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
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA.
-
- Bacula® is a registered trademark of Kern Sibbald.
- The licensor of Bacula is the Free Software Foundation Europe
- (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
- Switzerland, email:ftf@fsfeurope.org.
-*/
-/*
- * Bacula Catalog Database routines specific to SQLite
- *
- * Kern Sibbald, January 2002
- *
- * Version $Id$
- */
-
-
-
-/* The following is necessary so that we do not include
- * the dummy external definition of DB.
- */
-#define __SQL_C /* indicate that this is sql.c */
-
-#include "bacula.h"
-#include "cats.h"
-
-#if HAVE_SQLITE || HAVE_SQLITE3
-
-/* -----------------------------------------------------------------------
- *
- * SQLite dependent defines and subroutines
- *
- * -----------------------------------------------------------------------
- */
-
-/* List of open databases */
-static BQUEUE db_list = {&db_list, &db_list};
-
-static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
-
-/*
- * Retrieve database type
- */
-const char *
-db_get_type(void)
-{
-#ifdef HAVE_SQLITE3
- return "SQLite3";
-#else
- return "SQLite";
-#endif
-}
-
-/*
- * When using mult_db_connections = 1,
- * sqlite can be BUSY. We just need sleep a little in this case.
- */
-
-#ifdef HAVE_SQLITE3
-static int my_busy_handler(void *arg, int calls)
-{
- bmicrosleep(0, 500);
- return 1;
-}
-#else
-static int my_busy_handler(void *arg, const char* p, int calls)
-{
- bmicrosleep(0, 500);
- return 1;
-}
-#endif
-
-
-/*
- * Initialize database data structure. In principal this should
- * never have errors, or it is really fatal.
- */
-B_DB *
-db_init_database(JCR *jcr, const char *db_name, const char *db_user, const char *db_password,
- const char *db_address, int db_port, const char *db_socket,
- int mult_db_connections)
-{
- B_DB *mdb;
-
- P(mutex); /* lock DB queue */
- /* Look to see if DB already open */
- if (!mult_db_connections) {
- for (mdb=NULL; (mdb=(B_DB *)qnext(&db_list, &mdb->bq)); ) {
- if (bstrcmp(mdb->db_name, db_name) &&
- bstrcmp(mdb->db_address, db_address) &&
- mdb->db_port == db_port) {
- Dmsg2(300, "DB REopen %d %s\n", mdb->ref_count, db_name);
- mdb->ref_count++;
- V(mutex);
- return mdb; /* already open */
- }
- }
- }
- Dmsg0(300, "db_open first time\n");
- mdb = (B_DB *) malloc(sizeof(B_DB));
- memset(mdb, 0, sizeof(B_DB));
- mdb->db_name = bstrdup(db_name);
- mdb->have_insert_id = true;
- mdb->errmsg = get_pool_memory(PM_EMSG); /* get error message buffer */
- *mdb->errmsg = 0;
- mdb->cmd = get_pool_memory(PM_EMSG); /* get command buffer */
- mdb->cached_path = get_pool_memory(PM_FNAME);
- mdb->cached_path_id = 0;
- mdb->ref_count = 1;
- mdb->fname = get_pool_memory(PM_FNAME);
- mdb->path = get_pool_memory(PM_FNAME);
- mdb->esc_name = get_pool_memory(PM_FNAME);
- mdb->esc_path = get_pool_memory(PM_FNAME);
- mdb->allow_transactions = mult_db_connections;
- qinsert(&db_list, &mdb->bq); /* put db in list */
- V(mutex);
- return mdb;
-}
-
-/*
- * Now actually open the database. This can generate errors,
- * which are returned in the errmsg
- *
- * DO NOT close the database or free(mdb) here !!!!
- */
-int
-db_open_database(JCR *jcr, B_DB *mdb)
-{
- char *db_name;
- int len;
- struct stat statbuf;
- int errstat;
- int retry = 0;
-
- P(mutex);
- if (mdb->connected) {
- V(mutex);
- return 1;
- }
- mdb->connected = FALSE;
-
- if ((errstat=rwl_init(&mdb->lock)) != 0) {
- berrno be;
- Mmsg1(&mdb->errmsg, _("Unable to initialize DB lock. ERR=%s\n"),
- be.bstrerror(errstat));
- V(mutex);
- return 0;
- }
-
- /* open the database */
- len = strlen(working_directory) + strlen(mdb->db_name) + 5;
- db_name = (char *)malloc(len);
- strcpy(db_name, working_directory);
- strcat(db_name, "/");
- strcat(db_name, mdb->db_name);
- strcat(db_name, ".db");
- if (stat(db_name, &statbuf) != 0) {
- Mmsg1(&mdb->errmsg, _("Database %s does not exist, please create it.\n"),
- db_name);
- free(db_name);
- V(mutex);
- return 0;
- }
-
- for (mdb->db=NULL; !mdb->db && retry++ < 10; ) {
-#ifdef HAVE_SQLITE3
- int stat = sqlite3_open(db_name, &mdb->db);
- if (stat != SQLITE_OK) {
- mdb->sqlite_errmsg = (char *)sqlite3_errmsg(mdb->db);
- sqlite3_close(mdb->db);
- mdb->db = NULL;
- } else {
- mdb->sqlite_errmsg = NULL;
- }
-#else
- mdb->db = sqlite_open(
- db_name, /* database name */
- 644, /* mode */
- &mdb->sqlite_errmsg); /* error message */
-#endif
-
- Dmsg0(300, "sqlite_open\n");
- if (!mdb->db) {
- bmicrosleep(1, 0);
- }
- }
- if (mdb->db == NULL) {
- Mmsg2(&mdb->errmsg, _("Unable to open Database=%s. ERR=%s\n"),
- db_name, mdb->sqlite_errmsg ? mdb->sqlite_errmsg : _("unknown"));
- free(db_name);
- V(mutex);
- return 0;
- }
- mdb->connected = true;
- free(db_name);
-
- /* set busy handler to wait when we use mult_db_connections = 1 */
-#ifdef HAVE_SQLITE3
- sqlite3_busy_handler(mdb->db, my_busy_handler, NULL);
-#else
- sqlite_busy_handler(mdb->db, my_busy_handler, NULL);
-#endif
-
-#if defined(HAVE_SQLITE3) && defined(SQLITE3_INIT_QUERY)
- db_sql_query(mdb, SQLITE3_INIT_QUERY, NULL, NULL);
-#endif
-
- if (!check_tables_version(jcr, mdb)) {
- V(mutex);
- return 0;
- }
-
-
- V(mutex);
- return 1;
-}
-
-void
-db_close_database(JCR *jcr, B_DB *mdb)
-{
- if (!mdb) {
- return;
- }
- db_end_transaction(jcr, mdb);
- P(mutex);
- sql_free_result(mdb);
- mdb->ref_count--;
- if (mdb->ref_count == 0) {
- qdchain(&mdb->bq);
- if (mdb->connected && mdb->db) {
- sqlite_close(mdb->db);
- }
- rwl_destroy(&mdb->lock);
- free_pool_memory(mdb->errmsg);
- free_pool_memory(mdb->cmd);
- free_pool_memory(mdb->cached_path);
- free_pool_memory(mdb->fname);
- free_pool_memory(mdb->path);
- free_pool_memory(mdb->esc_name);
- free_pool_memory(mdb->esc_path);
- if (mdb->db_name) {
- free(mdb->db_name);
- }
- free(mdb);
- }
- V(mutex);
-}
-
-void db_thread_cleanup()
-{
-#ifdef HAVE_SQLITE3
- sqlite3_thread_cleanup();
-#endif
-}
-
-/*
- * Return the next unique index (auto-increment) for
- * the given table. Return 0 on error.
- */
-int db_next_index(JCR *jcr, B_DB *mdb, char *table, char *index)
-{
- strcpy(index, "NULL");
- return 1;
-}
-
-
-/*
- * Escape strings so that SQLite is happy
- *
- * NOTE! len is the length of the old string. Your new
- * string must be long enough (max 2*old+1) to hold
- * the escaped output.
- */
-void
-db_escape_string(JCR *jcr, B_DB *db, char *snew, char *old, int len)
-{
- char *n, *o;
-
- n = snew;
- o = old;
- while (len--) {
- switch (*o) {
- case '\'':
- *n++ = '\'';
- *n++ = '\'';
- o++;
- break;
- case 0:
- *n++ = '\\';
- *n++ = 0;
- o++;
- break;
- default:
- *n++ = *o++;
- break;
- }
- }
- *n = 0;
-}
-
-struct rh_data {
- DB_RESULT_HANDLER *result_handler;
- void *ctx;
-};
-
-/*
- * Convert SQLite's callback into Bacula DB callback
- */
-static int sqlite_result(void *arh_data, int num_fields, char **rows, char **col_names)
-{
- struct rh_data *rh_data = (struct rh_data *)arh_data;
-
- if (rh_data->result_handler) {
- (*(rh_data->result_handler))(rh_data->ctx, num_fields, rows);
- }
- return 0;
-}
-
-/*
- * Submit a general SQL command (cmd), and for each row returned,
- * the sqlite_handler is called with the ctx.
- */
-bool db_sql_query(B_DB *mdb, const char *query, DB_RESULT_HANDLER *result_handler, void *ctx)
-{
- struct rh_data rh_data;
- int stat;
-
- db_lock(mdb);
- if (mdb->sqlite_errmsg) {
-#ifdef HAVE_SQLITE3
- sqlite3_free(mdb->sqlite_errmsg);
-#else
- actuallyfree(mdb->sqlite_errmsg);
-#endif
- mdb->sqlite_errmsg = NULL;
- }
- rh_data.result_handler = result_handler;
- rh_data.ctx = ctx;
- stat = sqlite_exec(mdb->db, query, sqlite_result, (void *)&rh_data, &mdb->sqlite_errmsg);
- if (stat != 0) {
- Mmsg(mdb->errmsg, _("Query failed: %s: ERR=%s\n"), query, sql_strerror(mdb));
- db_unlock(mdb);
- return false;
- }
- db_unlock(mdb);
- return true;
-}
-
-/*
- * Submit a sqlite query and retrieve all the data
- */
-int my_sqlite_query(B_DB *mdb, const char *cmd)
-{
- int stat;
-
- my_sqlite_free_table(mdb);
- if (mdb->sqlite_errmsg) {
-#ifdef HAVE_SQLITE3
- sqlite3_free(mdb->sqlite_errmsg);
-#else
- actuallyfree(mdb->sqlite_errmsg);
-#endif
- mdb->sqlite_errmsg = NULL;
- }
- stat = sqlite_get_table(mdb->db, (char *)cmd, &mdb->result, &mdb->nrow, &mdb->ncolumn,
- &mdb->sqlite_errmsg);
- mdb->row = 0; /* row fetched */
- return stat;
-}
-
-/* Fetch one row at a time */
-SQL_ROW my_sqlite_fetch_row(B_DB *mdb)
-{
- if (mdb->row >= mdb->nrow) {
- return NULL;
- }
- mdb->row++;
- return &mdb->result[mdb->ncolumn * mdb->row];
-}
-
-void my_sqlite_free_table(B_DB *mdb)
-{
- int i;
-
- if (mdb->fields_defined) {
- for (i=0; i < sql_num_fields(mdb); i++) {
- free(mdb->fields[i]);
- }
- free(mdb->fields);
- mdb->fields_defined = false;
- }
- if (mdb->result) {
- sqlite_free_table(mdb->result);
- mdb->result = NULL;
- }
- mdb->nrow = mdb->ncolumn = 0;
-}
-
-void my_sqlite_field_seek(B_DB *mdb, int field)
-{
- int i, j;
- if (mdb->result == NULL) {
- return;
- }
- /* On first call, set up the fields */
- if (!mdb->fields_defined && sql_num_fields(mdb) > 0) {
- mdb->fields = (SQL_FIELD **)malloc(sizeof(SQL_FIELD) * mdb->ncolumn);
- for (i=0; i < sql_num_fields(mdb); i++) {
- mdb->fields[i] = (SQL_FIELD *)malloc(sizeof(SQL_FIELD));
- mdb->fields[i]->name = mdb->result[i];
- mdb->fields[i]->length = cstrlen(mdb->fields[i]->name);
- mdb->fields[i]->max_length = mdb->fields[i]->length;
- for (j=1; j <= mdb->nrow; j++) {
- int len;
- if (mdb->result[i + mdb->ncolumn *j]) {
- len = (uint32_t)cstrlen(mdb->result[i + mdb->ncolumn * j]);
- } else {
- len = 0;
- }
- if (len > mdb->fields[i]->max_length) {
- mdb->fields[i]->max_length = len;
- }
- }
- mdb->fields[i]->type = 0;
- mdb->fields[i]->flags = 1; /* not null */
- }
- mdb->fields_defined = true;
- }
- if (field > sql_num_fields(mdb) - 1) {
- field = sql_num_fields(mdb) - 1;
- }
- mdb->field = field;
-}
-
-SQL_FIELD *my_sqlite_fetch_field(B_DB *mdb)
-{
- if (mdb->fields_defined && mdb->field < sql_num_fields(mdb)) {
- return mdb->fields[mdb->field++];
- } else {
- mdb->field = 0;
- return NULL;
- }
-}
-
-#ifdef HAVE_BATCH_FILE_INSERT
-const char *my_sqlite_batch_lock_query = "BEGIN";
-const char *my_sqlite_batch_unlock_query = "COMMIT";
-
-const char *my_sqlite_batch_fill_path_query =
- "INSERT INTO Path (Path)"
- " SELECT DISTINCT Path FROM batch"
- " EXCEPT SELECT Path FROM Path";
-
-const char *my_sqlite_batch_fill_filename_query =
- "INSERT INTO Filename (Name)"
- " SELECT DISTINCT Name FROM batch "
- " EXCEPT SELECT Name FROM Filename";
-#endif /* HAVE_BATCH_FILE_INSERT */
-
-
-#endif /* HAVE_SQLITE */
+/*
+ Bacula(R) - The Network Backup Solution
+
+ Copyright (C) 2000-2016 Kern Sibbald
+
+ The original author of Bacula is Kern Sibbald, with contributions
+ from many others, a complete list can be found in the file AUTHORS.
+
+ You may use this file and others of this release according to the
+ license defined in the LICENSE file, which includes the Affero General
+ Public License, v3.0 ("AGPLv3") and some additional permissions and
+ terms pursuant to its AGPLv3 Section 7.
+
+ This notice must be preserved when any source code is
+ conveyed and/or propagated.
+
+ Bacula(R) is a registered trademark of Kern Sibbald.
+*/
+/*
+ * Bacula Catalog Database routines specific to SQLite
+ *
+ * Written by Kern Sibbald, January 2002
+ *
+ * Note: at one point, this file was changed to class based by a certain
+ * programmer, and other than "wrapping" in a class, which is a trivial
+ * change for a C++ programmer, nothing substantial was done, yet all the
+ * code was recommitted under this programmer's name. Consequently, we
+ * undo those changes here.
+ */
+
+#include "bacula.h"
+
+#if HAVE_SQLITE3
+
+#include "cats.h"
+#include <sqlite3.h>
+#define __BDB_SQLITE_H_ 1
+#include "bdb_sqlite.h"
+
+/* -----------------------------------------------------------------------
+ *
+ * SQLite dependent defines and subroutines
+ *
+ * -----------------------------------------------------------------------
+ */
+
+/* List of open databases */
+static dlist *db_list = NULL;
+
+static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+
+/*
+ * When using mult_db_connections
+ * sqlite can be BUSY. We just need sleep a little in this case.
+ */
+static int my_sqlite_busy_handler(void *arg, int calls)
+{
+ bmicrosleep(0, 500);
+ return 1;
+}
+
+BDB_SQLITE::BDB_SQLITE()
+{
+ BDB_SQLITE *mdb = this;
+
+ if (db_list == NULL) {
+ db_list = New(dlist(mdb, &mdb->m_link));
+ }
+ mdb->m_db_driver_type = SQL_DRIVER_TYPE_SQLITE3;
+ mdb->m_db_type = SQL_TYPE_SQLITE3;
+ mdb->m_db_driver = bstrdup("SQLite3");
+
+ mdb->errmsg = get_pool_memory(PM_EMSG); /* get error message buffer */
+ mdb->errmsg[0] = 0;
+ mdb->cmd = get_pool_memory(PM_EMSG); /* get command buffer */
+ mdb->cached_path = get_pool_memory(PM_FNAME);
+ mdb->cached_path_id = 0;
+ mdb->m_ref_count = 1;
+ mdb->fname = get_pool_memory(PM_FNAME);
+ mdb->path = get_pool_memory(PM_FNAME);
+ mdb->esc_name = get_pool_memory(PM_FNAME);
+ mdb->esc_path = get_pool_memory(PM_FNAME);
+ mdb->esc_obj = get_pool_memory(PM_FNAME);
+ mdb->m_use_fatal_jmsg = true;
+
+ /* Initialize the private members. */
+ mdb->m_db_handle = NULL;
+ mdb->m_result = NULL;
+ mdb->m_sqlite_errmsg = NULL;
+
+ db_list->append(this);
+}
+
+BDB_SQLITE::~BDB_SQLITE()
+{
+}
+
+/*
+ * Initialize database data structure. In principal this should
+ * never have errors, or it is really fatal.
+ */
+BDB *db_init_database(JCR *jcr, const char *db_driver, const char *db_name, const char *db_user,
+ const char *db_password, const char *db_address, int db_port, const char *db_socket,
+ const char *db_ssl_key, const char *db_ssl_cert, const char *db_ssl_ca,
+ const char *db_ssl_capath, const char *db_ssl_cipher,
+ bool mult_db_connections, bool disable_batch_insert)
+{
+ BDB_SQLITE *mdb = NULL;
+
+ P(mutex); /* lock DB queue */
+ /*
+ * Look to see if DB already open
+ */
+ if (db_list && !mult_db_connections) {
+ foreach_dlist(mdb, db_list) {
+ if (mdb->bdb_match_database(db_driver, db_name, db_address, db_port)) {
+ Dmsg1(300, "DB REopen %s\n", db_name);
+ mdb->increment_refcount();
+ goto bail_out;
+ }
+ }
+ }
+ Dmsg0(300, "db_init_database first time\n");
+ mdb = New(BDB_SQLITE());
+
+ mdb->m_db_name = bstrdup(db_name);
+ if (disable_batch_insert) {
+ mdb->m_disabled_batch_insert = true;
+ mdb->m_have_batch_insert = false;
+ } else {
+ mdb->m_disabled_batch_insert = false;
+#ifdef USE_BATCH_FILE_INSERT
+#ifdef HAVE_SQLITE3_THREADSAFE
+ mdb->m_have_batch_insert = sqlite3_threadsafe();
+#else
+ mdb->m_have_batch_insert = false;
+#endif /* HAVE_SQLITE3_THREADSAFE */
+#else
+ mdb->m_have_batch_insert = false;
+#endif /* USE_BATCH_FILE_INSERT */
+ }
+ mdb->m_allow_transactions = mult_db_connections;
+
+ /* At this time, when mult_db_connections == true, this is for
+ * specific console command such as bvfs or batch mode, and we don't
+ * want to share a batch mode or bvfs. In the future, we can change
+ * the creation function to add this parameter.
+ */
+ mdb->m_dedicated = mult_db_connections;
+
+bail_out:
+ V(mutex);
+ return mdb;
+}
+
+
+/*
+ * Now actually open the database. This can generate errors,
+ * which are returned in the errmsg
+ *
+ * DO NOT close the database or delete mdb here !!!!
+ */
+bool BDB_SQLITE::bdb_open_database(JCR *jcr)
+{
+ bool retval = false;
+ char *db_file;
+ int len;
+ struct stat statbuf;
+ int ret;
+ int errstat;
+ int retry = 0;
+ int64_t starttime;
+ BDB_SQLITE *mdb = this;
+
+ P(mutex);
+ if (mdb->m_connected) {
+ retval = true;
+ goto bail_out;
+ }
+
+ if ((errstat=rwl_init(&mdb->m_lock)) != 0) {
+ berrno be;
+ Mmsg1(&mdb->errmsg, _("Unable to initialize DB lock. ERR=%s\n"),
+ be.bstrerror(errstat));
+ goto bail_out;
+ }
+
+ /*
+ * Open the database
+ */
+ len = strlen(working_directory) + strlen(mdb->m_db_name) + 5;
+ db_file = (char *)malloc(len);
+ strcpy(db_file, working_directory);
+ strcat(db_file, "/");
+ strcat(db_file, m_db_name);
+ strcat(db_file, ".db");
+ if (stat(db_file, &statbuf) != 0) {
+ Mmsg1(&mdb->errmsg, _("Database %s does not exist, please create it.\n"),
+ db_file);
+ free(db_file);
+ goto bail_out;
+ }
+
+ for (mdb->m_db_handle = NULL; !mdb->m_db_handle && retry++ < 10; ) {
+ ret = sqlite3_open(db_file, &mdb->m_db_handle);
+ if (ret != SQLITE_OK) {
+ mdb->m_sqlite_errmsg = (char *)sqlite3_errmsg(mdb->m_db_handle);
+ sqlite3_close(mdb->m_db_handle);
+ mdb->m_db_handle = NULL;
+ } else {
+ mdb->m_sqlite_errmsg = NULL;
+ }
+
+ Dmsg0(300, "sqlite_open\n");
+ if (!mdb->m_db_handle) {
+ bmicrosleep(1, 0);
+ }
+ }
+ if (mdb->m_db_handle == NULL) {
+ Mmsg2(&mdb->errmsg, _("Unable to open Database=%s. ERR=%s\n"),
+ db_file, mdb->m_sqlite_errmsg ? mdb->m_sqlite_errmsg : _("unknown"));
+ free(db_file);
+ goto bail_out;
+ }
+ mdb->m_connected = true;
+ free(db_file);
+
+ /*
+ * Set busy handler to wait when we use mult_db_connections = true
+ */
+ sqlite3_busy_handler(mdb->m_db_handle, my_sqlite_busy_handler, NULL);
+
+#if defined(SQLITE3_INIT_QUERY)
+ sql_query(SQLITE3_INIT_QUERY);
+#endif
+
+ if (!bdb_check_version(jcr)) {
+ goto bail_out;
+ }
+
+ retval = true;
+
+bail_out:
+ V(mutex);
+ return retval;
+}
+
+void BDB_SQLITE::bdb_close_database(JCR *jcr)
+{
+ BDB_SQLITE *mdb = this;
+
+ if (mdb->m_connected) {
+ bdb_end_transaction(jcr);
+ }
+ P(mutex);
+ mdb->m_ref_count--;
+ if (mdb->m_ref_count == 0) {
+ if (mdb->m_connected) {
+ sql_free_result();
+ }
+ db_list->remove(mdb);
+ if (mdb->m_connected && mdb->m_db_handle) {
+ sqlite3_close(mdb->m_db_handle);
+ }
+ if (is_rwl_valid(&mdb->m_lock)) {
+ rwl_destroy(&mdb->m_lock);
+ }
+ free_pool_memory(mdb->errmsg);
+ free_pool_memory(mdb->cmd);
+ free_pool_memory(mdb->cached_path);
+ free_pool_memory(mdb->fname);
+ free_pool_memory(mdb->path);
+ free_pool_memory(mdb->esc_name);
+ free_pool_memory(mdb->esc_path);
+ free_pool_memory(mdb->esc_obj);
+ if (mdb->m_db_driver) {
+ free(mdb->m_db_driver);
+ }
+ if (mdb->m_db_name) {
+ free(mdb->m_db_name);
+ }
+ delete this;
+ if (db_list->size() == 0) {
+ delete db_list;
+ db_list = NULL;
+ }
+ }
+ V(mutex);
+}
+
+void BDB_SQLITE::bdb_thread_cleanup(void)
+{
+ sqlite3_thread_cleanup();
+}
+
+/*
+ * Escape strings so SQLite is happy
+ *
+ * len is the length of the old string. Your new
+ * string must be long enough (max 2*old+1) to hold
+ * the escaped output.
+ */
+void BDB_SQLITE::bdb_escape_string(JCR *jcr, char *snew, char *sold, int len)
+{
+ char *n, *o;
+
+ n = snew;
+ o = sold;
+ while (len--) {
+ switch (*o) {
+ case '\'':
+ *n++ = '\'';
+ *n++ = '\'';
+ o++;
+ break;
+ case 0:
+ *n++ = '\\';
+ *n++ = 0;
+ o++;
+ break;
+ default:
+ *n++ = *o++;
+ break;
+ }
+ }
+ *n = 0;
+}
+
+/*
+ * Escape binary object so that SQLite is happy
+ * Memory is stored in BDB struct, no need to free it
+ *
+ * TODO: this should be implemented (escape \0)
+ */
+char *BDB_SQLITE::bdb_escape_object(JCR *jcr, char *old, int len)
+{
+ int l;
+ int max = len*2; /* TODO: too big, should be *4/3 */
+
+ esc_obj = check_pool_memory_size(esc_obj, max);
+ l = bin_to_base64(esc_obj, max, old, len, true);
+ esc_obj[l] = 0;
+ ASSERT(l < max); /* TODO: add check for l */
+
+ return esc_obj;
+}
+
+/*
+ * Unescape binary object so that SQLIte is happy
+ *
+ * TODO: need to be implemented (escape \0)
+ */
+
+void BDB_SQLITE::bdb_unescape_object(JCR *jcr, char *from, int32_t expected_len,
+ POOLMEM **dest, int32_t *dest_len)
+{
+ if (!from) {
+ *dest[0] = 0;
+ *dest_len = 0;
+ return;
+ }
+ *dest = check_pool_memory_size(*dest, expected_len+1);
+ base64_to_bin(*dest, expected_len+1, from, strlen(from));
+ *dest_len = expected_len;
+ (*dest)[expected_len] = 0;
+}
+
+/*
+ * Start a transaction. This groups inserts and makes things
+ * more efficient. Usually started when inserting file attributes.
+ */
+void BDB_SQLITE::bdb_start_transaction(JCR *jcr)
+{
+ BDB_SQLITE *mdb = this;
+
+ if (!jcr->attr) {
+ jcr->attr = get_pool_memory(PM_FNAME);
+ }
+ if (!jcr->ar) {
+ jcr->ar = (ATTR_DBR *)malloc(sizeof(ATTR_DBR));
+ memset(jcr->ar, 0, sizeof(ATTR_DBR));
+ }
+
+ if (!mdb->m_allow_transactions) {
+ return;
+ }
+
+ bdb_lock();
+ /*
+ * Allow only 10,000 changes per transaction
+ */
+ if (mdb->m_transaction && mdb->changes > 10000) {
+ bdb_end_transaction(jcr);
+ }
+ if (!mdb->m_transaction) {
+ sql_query("BEGIN"); /* begin transaction */
+ Dmsg0(400, "Start SQLite transaction\n");
+ mdb->m_transaction = true;
+ }
+ bdb_unlock();
+}
+
+void BDB_SQLITE::bdb_end_transaction(JCR *jcr)
+{
+ BDB_SQLITE *mdb = this;
+
+ if (jcr && jcr->cached_attribute) {
+ Dmsg0(400, "Flush last cached attribute.\n");
+ if (!bdb_create_attributes_record(jcr, jcr->ar)) {
+ Jmsg1(jcr, M_FATAL, 0, _("Attribute create error. %s"), jcr->db->bdb_strerror());
+ }
+ jcr->cached_attribute = false;
+ }
+
+ if (!mdb->m_allow_transactions) {
+ return;
+ }
+
+ bdb_lock();
+ if (mdb->m_transaction) {
+ sql_query("COMMIT"); /* end transaction */
+ mdb->m_transaction = false;
+ Dmsg1(400, "End SQLite transaction changes=%d\n", changes);
+ }
+ mdb->changes = 0;
+ bdb_unlock();
+}
+
+struct rh_data {
+ BDB_SQLITE *mdb;
+ DB_RESULT_HANDLER *result_handler;
+ void *ctx;
+ bool initialized;
+};
+
+/*
+ * Convert SQLite's callback into Bacula DB callback
+ */
+static int sqlite_result_handler(void *arh_data, int num_fields, char **rows, char **col_names)
+{
+ struct rh_data *rh_data = (struct rh_data *)arh_data;
+
+ /* The db_sql_query doesn't have access to m_results, so if we wan't to get
+ * fields information, we need to use col_names
+ */
+ if (!rh_data->initialized) {
+ rh_data->mdb->set_column_names(col_names, num_fields);
+ rh_data->initialized = true;
+ }
+ if (rh_data->result_handler) {
+ (*(rh_data->result_handler))(rh_data->ctx, num_fields, rows);
+ }
+
+ return 0;
+}
+
+/*
+ * Submit a general SQL command (cmd), and for each row returned,
+ * the result_handler is called with the ctx.
+ */
+bool BDB_SQLITE::bdb_sql_query(const char *query, DB_RESULT_HANDLER *result_handler, void *ctx)
+{
+ BDB_SQLITE *mdb = this;
+ bool retval = false;
+ int stat;
+ struct rh_data rh_data;
+
+ Dmsg1(500, "db_sql_query starts with '%s'\n", query);
+
+ bdb_lock();
+ mdb->errmsg[0] = 0;
+ if (mdb->m_sqlite_errmsg) {
+ sqlite3_free(mdb->m_sqlite_errmsg);
+ mdb->m_sqlite_errmsg = NULL;
+ }
+ sql_free_result();
+
+ rh_data.ctx = ctx;
+ rh_data.mdb = this;
+ rh_data.initialized = false;
+ rh_data.result_handler = result_handler;
+
+ stat = sqlite3_exec(m_db_handle, query, sqlite_result_handler,
+ (void *)&rh_data, &m_sqlite_errmsg);
+
+ if (stat != SQLITE_OK) {
+ Mmsg(mdb->errmsg, _("Query failed: %s: ERR=%s\n"), query, sql_strerror());
+ Dmsg0(500, "db_sql_query finished\n");
+ goto bail_out;
+ }
+ Dmsg0(500, "db_sql_query finished\n");
+ sql_free_result();
+ retval = true;
+
+bail_out:
+ bdb_unlock();
+ return retval;
+}
+
+/*
+ * Submit a sqlite query and retrieve all the data
+ */
+bool BDB_SQLITE::sql_query(const char *query, int flags)
+{
+ int stat;
+ bool retval = false;
+ BDB_SQLITE *mdb = this;
+
+ Dmsg1(500, "sql_query starts with '%s'\n", query);
+
+ sql_free_result();
+ if (mdb->m_sqlite_errmsg) {
+ sqlite3_free(mdb->m_sqlite_errmsg);
+ mdb->m_sqlite_errmsg = NULL;
+ }
+
+ stat = sqlite3_get_table(m_db_handle, (char *)query, &m_result,
+ &m_num_rows, &m_num_fields, &m_sqlite_errmsg);
+
+ mdb->m_row_number = 0; /* no row fetched */
+ if (stat != 0) { /* something went wrong */
+ mdb->m_num_rows = mdb->m_num_fields = 0;
+ Dmsg0(500, "sql_query finished\n");
+ } else {
+ Dmsg0(500, "sql_query finished\n");
+ retval = true;
+ }
+ return retval;
+}
+
+void BDB_SQLITE::sql_free_result(void)
+{
+ BDB_SQLITE *mdb = this;
+
+ bdb_lock();
+ if (mdb->m_fields) {
+ free(mdb->m_fields);
+ mdb->m_fields = NULL;
+ }
+ if (mdb->m_result) {
+ sqlite3_free_table(mdb->m_result);
+ mdb->m_result = NULL;
+ }
+ mdb->m_col_names = NULL;
+ mdb->m_num_rows = mdb->m_num_fields = 0;
+ bdb_unlock();
+}
+
+/*
+ * Fetch one row at a time
+ */
+SQL_ROW BDB_SQLITE::sql_fetch_row(void)
+{
+ BDB_SQLITE *mdb = this;
+ if (!mdb->m_result || (mdb->m_row_number >= mdb->m_num_rows)) {
+ return NULL;
+ }
+ mdb->m_row_number++;
+ return &mdb->m_result[mdb->m_num_fields * mdb->m_row_number];
+}
+
+const char *BDB_SQLITE::sql_strerror(void)
+{
+ BDB_SQLITE *mdb = this;
+ return mdb->m_sqlite_errmsg ? mdb->m_sqlite_errmsg : "unknown";
+}
+
+void BDB_SQLITE::sql_data_seek(int row)
+{
+ BDB_SQLITE *mdb = this;
+ /* Set the row number to be returned on the next call to sql_fetch_row */
+ mdb->m_row_number = row;
+}
+
+int BDB_SQLITE::sql_affected_rows(void)
+{
+ BDB_SQLITE *mdb = this;
+ return sqlite3_changes(mdb->m_db_handle);
+}
+
+uint64_t BDB_SQLITE::sql_insert_autokey_record(const char *query, const char *table_name)
+{
+ BDB_SQLITE *mdb = this;
+ /* First execute the insert query and then retrieve the currval. */
+ if (!sql_query(query)) {
+ return 0;
+ }
+
+ mdb->m_num_rows = sql_affected_rows();
+ if (mdb->m_num_rows != 1) {
+ return 0;
+ }
+
+ mdb->changes++;
+
+ return sqlite3_last_insert_rowid(mdb->m_db_handle);
+}
+
+SQL_FIELD *BDB_SQLITE::sql_fetch_field(void)
+{
+ BDB_SQLITE *mdb = this;
+ int i, j, len;
+
+ /* We are in the middle of a db_sql_query and we want to get fields info */
+ if (mdb->m_col_names != NULL) {
+ if (mdb->m_num_fields > mdb->m_field_number) {
+ mdb->m_sql_field.name = mdb->m_col_names[mdb->m_field_number];
+ /* We don't have the maximum field length, so we can use 80 as
+ * estimation.
+ */
+ len = MAX(cstrlen(mdb->m_sql_field.name), 80/mdb->m_num_fields);
+ mdb->m_sql_field.max_length = len;
+
+ mdb->m_field_number++;
+ mdb->m_sql_field.type = 0; /* not numeric */
+ mdb->m_sql_field.flags = 1; /* not null */
+ return &mdb->m_sql_field;
+ } else { /* too much fetch_field() */
+ return NULL;
+ }
+ }
+
+ /* We are after a sql_query() that stores the result in m_results */
+ if (!mdb->m_fields || mdb->m_fields_size < mdb->m_num_fields) {
+ if (mdb->m_fields) {
+ free(mdb->m_fields);
+ mdb->m_fields = NULL;
+ }
+ Dmsg1(500, "allocating space for %d fields\n", m_num_fields);
+ mdb->m_fields = (SQL_FIELD *)malloc(sizeof(SQL_FIELD) * mdb->m_num_fields);
+ mdb->m_fields_size = mdb->m_num_fields;
+
+ for (i = 0; i < mdb->m_num_fields; i++) {
+ Dmsg1(500, "filling field %d\n", i);
+ mdb->m_fields[i].name = mdb->m_result[i];
+ mdb->m_fields[i].max_length = cstrlen(mdb->m_fields[i].name);
+ for (j = 1; j <= mdb->m_num_rows; j++) {
+ if (mdb->m_result[i + mdb->m_num_fields * j]) {
+ len = (uint32_t)cstrlen(mdb->m_result[i + mdb->m_num_fields * j]);
+ } else {
+ len = 0;
+ }
+ if (len > mdb->m_fields[i].max_length) {
+ mdb->m_fields[i].max_length = len;
+ }
+ }
+ mdb->m_fields[i].type = 0;
+ mdb->m_fields[i].flags = 1; /* not null */
+
+ Dmsg4(500, "sql_fetch_field finds field '%s' has length='%d' type='%d' and IsNull=%d\n",
+ mdb->m_fields[i].name, mdb->m_fields[i].max_length, mdb->m_fields[i].type, mdb->m_fields[i].flags);
+ }
+ }
+
+ /* Increment field number for the next time around */
+ return &mdb->m_fields[mdb->m_field_number++];
+}
+
+bool BDB_SQLITE::sql_field_is_not_null(int field_type)
+{
+ if (field_type == 1) {
+ return true;
+ }
+ return false;
+}
+
+bool BDB_SQLITE::sql_field_is_numeric(int field_type)
+{
+ if (field_type == 1) {
+ return true;
+ }
+ return false;
+}
+
+/*
+ * Returns true if OK
+ * false if failed
+ */
+bool BDB_SQLITE::sql_batch_start(JCR *jcr)
+{
+ bool ret;
+
+ bdb_lock();
+ ret = sql_query("CREATE TEMPORARY TABLE batch ("
+ "FileIndex integer,"
+ "JobId integer,"
+ "Path blob,"
+ "Name blob,"
+ "LStat tinyblob,"
+ "MD5 tinyblob,"
+ "DeltaSeq integer)");
+ bdb_unlock();
+
+ return ret;
+}
+
+/* Set error to something to abort operation */
+/*
+ * Returns true if OK
+ * false if failed
+ */
+bool BDB_SQLITE::sql_batch_end(JCR *jcr, const char *error)
+{
+ m_status = 0;
+ return true;
+}
+
+/*
+ * Returns true if OK
+ * false if failed
+ */
+bool BDB_SQLITE::sql_batch_insert(JCR *jcr, ATTR_DBR *ar)
+{
+ BDB_SQLITE *mdb = this;
+ const char *digest;
+ char ed1[50];
+
+ mdb->esc_name = check_pool_memory_size(mdb->esc_name, mdb->fnl*2+1);
+ bdb_escape_string(jcr, mdb->esc_name, mdb->fname, mdb->fnl);
+
+ mdb->esc_path = check_pool_memory_size(mdb->esc_path, mdb->pnl*2+1);
+ bdb_escape_string(jcr, mdb->esc_path, mdb->path, mdb->pnl);
+
+ if (ar->Digest == NULL || ar->Digest[0] == 0) {
+ digest = "0";
+ } else {
+ digest = ar->Digest;
+ }
+
+ Mmsg(mdb->cmd, "INSERT INTO batch VALUES "
+ "(%u,%s,'%s','%s','%s','%s',%u)",
+ ar->FileIndex, edit_int64(ar->JobId,ed1), mdb->esc_path,
+ mdb->esc_name, ar->attr, digest, ar->DeltaSeq);
+
+ return sql_query(mdb->cmd);
+}
+
+
+#endif /* HAVE_SQLITE3 */
projects / bacula / bacula / blobdiff