static Rlist *GetSQLTables(CfdbConn *cfdb)
{
Rlist *list = NULL;
char query[CF_MAXVARSIZE];
ListTables(cfdb->type, query);
CfNewQueryDB(cfdb, query);
if (cfdb->maxcolumns != 1)
{
Log(LOG_LEVEL_ERR, "Could not make sense of the columns");
CfDeleteQuery(cfdb);
return NULL;
}
while (CfFetchRow(cfdb))
{
RlistPrepend(&list, CfFetchColumn(cfdb, 0), RVAL_TYPE_SCALAR);
}
CfDeleteQuery(cfdb);
return list;
}
static Rlist *GetSQLTables(CfdbConn *cfdb)
{
Rlist *list = NULL;
char query[CF_MAXVARSIZE];
ListTables(cfdb->type, query);
CfNewQueryDB(cfdb, query);
if (cfdb->maxcolumns != 1)
{
CfOut(cf_error, "", "Could not make sense of the columns");
CfDeleteQuery(cfdb);
return NULL;
}
while (CfFetchRow(cfdb))
{
PrependRScalar(&list, CfFetchColumn(cfdb, 0), CF_SCALAR);
}
CfDeleteQuery(cfdb);
return list;
}
void CfVoidQueryDB(CfdbConn *cfdb, char *query)
{
if (!cfdb->connected)
{
return;
}
/* If we don't need to retrieve table entries...*/
CfNewQueryDB(cfdb, query);
CfDeleteQuery(cfdb);
}
static int VerifyTablePromise(CfdbConn *cfdb, char *table_path, Rlist *columns, Attributes a, Promise *pp)
{
char name[CF_MAXVARSIZE], type[CF_MAXVARSIZE], query[CF_MAXVARSIZE], table[CF_MAXVARSIZE], db[CF_MAXVARSIZE];
int i, count, size, no_of_cols, *size_table, *done, identified, retval = true;
char **name_table, **type_table;
CfOut(cf_verbose, "", " -> Verifying promised table structure for \"%s\"", table_path);
if (!ValidateSQLTableName(table_path, db, table))
{
CfOut(cf_error, "",
" !! The structure of the promiser did not match that for an SQL table, i.e. \"database.table\"\n");
return false;
}
else
{
CfOut(cf_verbose, "", " -> Assuming database \"%s\" with table \"%s\"", db, table);
}
/* Verify the existence of the tables within the database */
if (!TableExists(cfdb, table))
{
CfOut(cf_error, "", " !! The database did not contain the promised table \"%s\"\n", table_path);
if ((a.database.operation) && (strcmp(a.database.operation, "create") == 0))
{
if ((!DONTDO) && ((a.transaction.action) != cfa_warn))
{
cfPS(cf_error, CF_CHG, "", pp, a, " -> Database.table %s doesn't seem to exist, creating\n",
table_path);
return CreateTableColumns(cfdb, table, columns, a, pp);
}
else
{
CfOut(cf_error, "", " -> Database.table %s doesn't seem to exist, but only a warning was promised\n",
table_path);
}
}
return false;
}
/* Get a list of the columns in the table */
QueryTableColumns(query, db, table);
CfNewQueryDB(cfdb, query);
if (cfdb->maxcolumns != 3)
{
cfPS(cf_error, CF_FAIL, "", pp, a, "Could not make sense of the columns");
CfDeleteQuery(cfdb);
return false;
}
/* Assume that the Rlist has been validated and consists of a,b,c */
count = 0;
no_of_cols = RlistLen(columns);
if (!NewSQLColumns(table, columns, &name_table, &type_table, &size_table, &done))
{
cfPS(cf_error, CF_FAIL, "", pp, a, "Could not make sense of the columns");
return false;
}
/* Obtain columns from the named table - if any */
while (CfFetchRow(cfdb))
{
char *sizestr;
name[0] = '\0';
type[0] = '\0';
size = CF_NOINT;
strlcpy(name, CfFetchColumn(cfdb, 0), CF_MAXVARSIZE);
strlcpy(type, CfFetchColumn(cfdb, 1), CF_MAXVARSIZE);
ToLowerStrInplace(type);
sizestr = CfFetchColumn(cfdb, 2);
if (sizestr)
{
size = Str2Int(sizestr);
}
CfOut(cf_verbose, "", " ... discovered column (%s,%s,%d)", name, type, size);
if (sizestr && (size == CF_NOINT))
{
cfPS(cf_verbose, CF_NOP, "", pp, a,
" !! Integer size of SQL datatype could not be determined or was not specified - invalid promise.");
DeleteSQLColumns(name_table, type_table, size_table, done, no_of_cols);
CfDeleteQuery(cfdb);
return false;
}
identified = false;
for (i = 0; i < no_of_cols; i++)
{
if (done[i])
{
continue;
}
if (strcmp(name, name_table[i]) == 0)
{
CheckSQLDataType(type, type_table[i], pp);
if (size != size_table[i])
{
cfPS(cf_error, CF_FAIL, "", pp, a,
" !! Promised column \"%s\" in database.table \"%s\" has a non-matching array size (%d != %d)",
name, table_path, size, size_table[i]);
}
else
{
CfOut(cf_verbose, "", " -> Promised column \"%s\" in database.table \"%s\" is as promised", name,
table_path);
}
count++;
done[i] = true;
identified = true;
break;
}
}
if (!identified)
{
cfPS(cf_error, CF_FAIL, "", pp, a,
"Column \"%s\" found in database.table \"%s\" is not part of its promise.", name, table_path);
if ((a.database.operation) && (strcmp(a.database.operation, "drop") == 0))
{
cfPS(cf_error, CF_FAIL, "", pp, a,
"Cfengine will not promise to repair this, as the operation is potentially too destructive.");
// Future allow deletion?
}
retval = false;
}
}
CfDeleteQuery(cfdb);
/* Now look for deviations - only if we have promised to create missing */
if ((a.database.operation) && (strcmp(a.database.operation, "drop") == 0))
{
return retval;
}
if (count != no_of_cols)
{
for (i = 0; i < no_of_cols; i++)
{
if (!done[i])
{
CfOut(cf_error, "", " !! Promised column \"%s\" missing from database table %s", name_table[i],
pp->promiser);
if ((!DONTDO) && ((a.transaction.action) != cfa_warn))
{
if (size_table[i] > 0)
{
snprintf(query, CF_MAXVARSIZE - 1, "ALTER TABLE %s ADD %s %s(%d)", table, name_table[i],
type_table[i], size_table[i]);
}
else
{
snprintf(query, CF_MAXVARSIZE - 1, "ALTER TABLE %s ADD %s %s", table, name_table[i],
type_table[i]);
}
CfVoidQueryDB(cfdb, query);
cfPS(cf_error, CF_CHG, "", pp, a, " !! Adding promised column \"%s\" to database table %s",
name_table[i], table);
retval = true;
}
else
{
cfPS(cf_error, CF_WARN, "", pp, a,
" !! Promised column \"%s\" missing from database table %s but only a warning was promised",
name_table[i], table);
retval = false;
}
}
}
}
DeleteSQLColumns(name_table, type_table, size_table, done, no_of_cols);
return retval;
}
static int VerifyDatabasePromise(CfdbConn *cfdb, char *database, Attributes a, Promise *pp)
{
char query[CF_BUFSIZE], name[CF_MAXVARSIZE];
int found = false;
CfOut(cf_verbose, "", " -> Verifying promised database");
if (!cfdb->connected)
{
CfOut(cf_inform, "", "Database %s is not connected\n", database);
return false;
}
CreateDBQuery(cfdb->type, query);
CfNewQueryDB(cfdb, query);
if (cfdb->maxcolumns < 1)
{
CfOut(cf_error, "", " !! The schema did not promise the expected number of fields - got %d expected >= %d\n",
cfdb->maxcolumns, 1);
return false;
}
while (CfFetchRow(cfdb))
{
strncpy(name, CfFetchColumn(cfdb, 0), CF_MAXVARSIZE - 1);
CfOut(cf_verbose, "", " ? ... discovered a database called \"%s\"", name);
if (strcmp(name, database) == 0)
{
found = true;
}
}
if (found)
{
CfOut(cf_verbose, "", " -> Database \"%s\" exists on this connection", database);
return true;
}
else
{
CfOut(cf_verbose, "", " !! Database \"%s\" does not seem to exist on this connection", database);
}
if ((a.database.operation) && (strcmp(a.database.operation, "drop") == 0))
{
if (((a.transaction.action) != cfa_warn) && (!DONTDO))
{
CfOut(cf_verbose, "", " -> Attempting to delete the database %s", database);
snprintf(query, CF_MAXVARSIZE - 1, "drop database %s", database);
CfVoidQueryDB(cfdb, query);
return cfdb->result;
}
else
{
CfOut(cf_error, "", " !! Need to delete the database %s but only a warning was promised\n", database);
return false;
}
}
if ((a.database.operation) && (strcmp(a.database.operation, "create") == 0))
{
if (((a.transaction.action) != cfa_warn) && (!DONTDO))
{
CfOut(cf_verbose, "", " -> Attempting to create the database %s", database);
snprintf(query, CF_MAXVARSIZE - 1, "create database %s", database);
CfVoidQueryDB(cfdb, query);
return cfdb->result;
}
else
{
CfOut(cf_error, "", " !! Need to create the database %s but only a warning was promised\n", database);
return false;
}
}
return false;
}
static int VerifyTablePromise(EvalContext *ctx, CfdbConn *cfdb, char *table_path, Rlist *columns, const Attributes *a,
const Promise *pp, PromiseResult *result)
{
assert(a != NULL);
char name[CF_MAXVARSIZE], type[CF_MAXVARSIZE], query[CF_MAXVARSIZE], table[CF_MAXVARSIZE], db[CF_MAXVARSIZE];
int i, count, size, no_of_cols, *size_table, *done, identified, retval = true;
char **name_table, **type_table;
Log(LOG_LEVEL_VERBOSE, "Verifying promised table structure for '%s'", table_path);
if (!ValidateSQLTableName(table_path, db, table))
{
Log(LOG_LEVEL_ERR,
"The structure of the promiser did not match that for an SQL table, i.e. 'database.table'");
return false;
}
else
{
Log(LOG_LEVEL_VERBOSE, "Assuming database '%s' with table '%s'", db, table);
}
/* Verify the existence of the tables within the database */
if (!TableExists(cfdb, table))
{
Log(LOG_LEVEL_ERR, "The database did not contain the promised table '%s'", table_path);
if ((a->database.operation) && (strcmp(a->database.operation, "create") == 0))
{
if ((!DONTDO) && ((a->transaction.action) != cfa_warn))
{
cfPS(ctx, LOG_LEVEL_ERR, PROMISE_RESULT_CHANGE, pp, a, "Database.table '%s' doesn't seem to exist, creating",
table_path);
*result = PromiseResultUpdate(*result, PROMISE_RESULT_CHANGE);
return CreateTableColumns(cfdb, table, columns);
}
else
{
Log(LOG_LEVEL_WARNING, "Database.table '%s' doesn't seem to exist, but only a warning was promised",
table_path);
}
}
return false;
}
/* Get a list of the columns in the table */
QueryTableColumns(query, db, table);
CfNewQueryDB(cfdb, query);
if (cfdb->maxcolumns != 3)
{
cfPS(ctx, LOG_LEVEL_ERR, PROMISE_RESULT_FAIL, pp, a, "Could not make sense of the columns");
*result = PromiseResultUpdate(*result, PROMISE_RESULT_FAIL);
CfDeleteQuery(cfdb);
return false;
}
/* Assume that the Rlist has been validated and consists of a,b,c */
count = 0;
no_of_cols = RlistLen(columns);
if (!NewSQLColumns(table, columns, &name_table, &type_table, &size_table, &done))
{
cfPS(ctx, LOG_LEVEL_ERR, PROMISE_RESULT_FAIL, pp, a, "Could not make sense of the columns");
*result = PromiseResultUpdate(*result, PROMISE_RESULT_FAIL);
return false;
}
/* Obtain columns from the named table - if any */
while (CfFetchRow(cfdb))
{
char *sizestr;
name[0] = '\0';
type[0] = '\0';
size = CF_NOINT;
strlcpy(name, CfFetchColumn(cfdb, 0), CF_MAXVARSIZE);
strlcpy(type, CfFetchColumn(cfdb, 1), CF_MAXVARSIZE);
ToLowerStrInplace(type);
sizestr = CfFetchColumn(cfdb, 2);
if (sizestr)
{
size = IntFromString(sizestr);
}
Log(LOG_LEVEL_VERBOSE, "Discovered database column (%s,%s,%d)", name, type, size);
if (sizestr && (size == CF_NOINT))
{
cfPS(ctx, LOG_LEVEL_VERBOSE, PROMISE_RESULT_NOOP, pp, a,
"Integer size of SQL datatype could not be determined or was not specified - invalid promise.");
DeleteSQLColumns(name_table, type_table, size_table, done, no_of_cols);
CfDeleteQuery(cfdb);
return false;
}
identified = false;
for (i = 0; i < no_of_cols; i++)
{
if (done[i])
{
continue;
}
if (strcmp(name, name_table[i]) == 0)
{
CheckSQLDataType(type, type_table[i], pp);
if (size != size_table[i])
{
cfPS(ctx, LOG_LEVEL_ERR, PROMISE_RESULT_FAIL, pp, a,
"Promised column '%s' in database.table '%s' has a non-matching array size (%d != %d)",
name, table_path, size, size_table[i]);
*result = PromiseResultUpdate(*result, PROMISE_RESULT_FAIL);
}
else
{
Log(LOG_LEVEL_VERBOSE, "Promised column '%s' in database.table '%s' is as promised", name,
table_path);
}
count++;
done[i] = true;
identified = true;
break;
}
}
if (!identified)
{
cfPS(ctx, LOG_LEVEL_ERR, PROMISE_RESULT_FAIL, pp, a,
"Column '%s' found in database.table '%s' is not part of its promise.", name, table_path);
*result = PromiseResultUpdate(*result, PROMISE_RESULT_FAIL);
if ((a->database.operation) && (strcmp(a->database.operation, "drop") == 0))
{
cfPS(ctx, LOG_LEVEL_ERR, PROMISE_RESULT_FAIL, pp, a,
"CFEngine will not promise to repair this, as the operation is potentially too destructive.");
// Future allow deletion?
*result = PromiseResultUpdate(*result, PROMISE_RESULT_FAIL);
}
retval = false;
}
}
CfDeleteQuery(cfdb);
/* Now look for deviations - only if we have promised to create missing */
if ((a->database.operation) && (strcmp(a->database.operation, "drop") == 0))
{
return retval;
}
if (count != no_of_cols)
{
for (i = 0; i < no_of_cols; i++)
{
if (!done[i])
{
Log(LOG_LEVEL_ERR, "Promised column '%s' missing from database table '%s'", name_table[i],
pp->promiser);
if ((!DONTDO) && ((a->transaction.action) != cfa_warn))
{
if (size_table[i] > 0)
{
snprintf(query, CF_MAXVARSIZE - 1, "ALTER TABLE %s ADD %s %s(%d)", table, name_table[i],
type_table[i], size_table[i]);
}
else
{
snprintf(query, CF_MAXVARSIZE - 1, "ALTER TABLE %s ADD %s %s", table, name_table[i],
type_table[i]);
}
CfVoidQueryDB(cfdb, query);
cfPS(ctx, LOG_LEVEL_ERR, PROMISE_RESULT_CHANGE, pp, a, "Adding promised column '%s' to database table '%s'",
name_table[i], table);
*result = PromiseResultUpdate(*result, PROMISE_RESULT_CHANGE);
retval = true;
}
else
{
cfPS(ctx, LOG_LEVEL_WARNING, PROMISE_RESULT_WARN, pp, a,
"Promised column '%s' missing from database table '%s' but only a warning was promised",
name_table[i], table);
*result = PromiseResultUpdate(*result, PROMISE_RESULT_WARN);
retval = false;
}
}
}
}
DeleteSQLColumns(name_table, type_table, size_table, done, no_of_cols);
return retval;
}
static int VerifyDatabasePromise(CfdbConn *cfdb, char *database, const Attributes *a)
{
assert(a != NULL);
char query[CF_BUFSIZE], name[CF_MAXVARSIZE];
int found = false;
Log(LOG_LEVEL_VERBOSE, "Verifying promised database");
if (!cfdb->connected)
{
Log(LOG_LEVEL_INFO, "Database '%s' is not connected", database);
return false;
}
CreateDBQuery(cfdb->type, query);
CfNewQueryDB(cfdb, query);
if (cfdb->maxcolumns < 1)
{
Log(LOG_LEVEL_ERR, "The schema did not promise the expected number of fields - got %d expected >= %d",
cfdb->maxcolumns, 1);
return false;
}
while (CfFetchRow(cfdb))
{
strlcpy(name, CfFetchColumn(cfdb, 0), CF_MAXVARSIZE);
Log(LOG_LEVEL_VERBOSE, "Discovered a database called '%s'", name);
if (strcmp(name, database) == 0)
{
found = true;
}
}
if (found)
{
Log(LOG_LEVEL_VERBOSE, "Database '%s' exists on this connection", database);
return true;
}
else
{
Log(LOG_LEVEL_VERBOSE, "Database '%s' does not seem to exist on this connection", database);
}
if ((a->database.operation) && (strcmp(a->database.operation, "drop") == 0))
{
if (((a->transaction.action) != cfa_warn) && (!DONTDO))
{
Log(LOG_LEVEL_VERBOSE, "Attempting to delete the database '%s'", database);
snprintf(query, CF_MAXVARSIZE - 1, "drop database %s", database);
CfVoidQueryDB(cfdb, query);
return cfdb->result;
}
else
{
Log(LOG_LEVEL_WARNING, "Need to delete the database '%s' but only a warning was promised", database);
return false;
}
}
if ((a->database.operation) && (strcmp(a->database.operation, "create") == 0))
{
if (((a->transaction.action) != cfa_warn) && (!DONTDO))
{
Log(LOG_LEVEL_VERBOSE, "Attempting to create the database '%s'", database);
snprintf(query, CF_MAXVARSIZE - 1, "create database %s", database);
CfVoidQueryDB(cfdb, query);
return cfdb->result;
}
else
{
Log(LOG_LEVEL_WARNING, "Need to create the database '%s' but only a warning was promised", database);
return false;
}
}
return false;
}