/* Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* Developed initially by Nick Kew and Chris Darroch. * Contributed to the APR project by kind permission of * Pearson Education Core Technology Group (CTG), * formerly Central Media Group (CMG). */ /* apr_dbd_oracle - a painful attempt * * Based first on the documentation at * http://download-west.oracle.com/docs/cd/B10501_01/appdev.920/a96584/toc.htm * * Those docs have a lot of internal inconsistencies, contradictions, etc * So I've snarfed the demo programs (from Oracle 8, not included in * the current downloadable oracle), and used code from them. * * Why do cdemo81.c and cdemo82.c do the same thing in very different ways? * e.g. cdemo82 releases all its handle on shutdown; cdemo81 doesn't * * All the ORA* functions return a "sword". Some of them are documented; * others aren't. So I've adopted a policy of using switch statements * everywhere, even when we're not doing anything with the return values. * * This makes no attempt at performance tuning, such as setting * prefetch cache size. We need some actual performance data * to make that meaningful. Input from someone with experience * as a sysop using oracle would be a good start. */ /* shut compiler up */ #ifdef DEBUG #define int_errorcode int errorcode #else #define int_errorcode #endif #include "apu.h" #if APU_HAVE_ORACLE #include <ctype.h> #include <stdlib.h> #include <stdio.h> #include <oci.h> #include "apr_strings.h" #include "apr_lib.h" #include "apr_time.h" #include "apr_hash.h" #include "apr_buckets.h" #define TRANS_TIMEOUT 30 #define MAX_ARG_LEN 256 /* in line with other apr_dbd drivers. We alloc this * lots of times, so a large value gets hungry. * Should really make it configurable */ #define DEFAULT_LONG_SIZE 4096 #define DBD_ORACLE_MAX_COLUMNS 256 #define NUMERIC_FIELD_SIZE 32 #define CHECK_CONN_QUERY "SELECT 1 FROM dual" #define ERR_BUF_SIZE 200 #ifdef DEBUG #include <stdio.h> #endif #include "apr_dbd_internal.h" /* declarations */ static const char *dbd_oracle_error(apr_dbd_t *sql, int n); static int dbd_oracle_prepare(apr_pool_t *pool, apr_dbd_t *sql, const char *query, const char *label, int nargs, int nvals, apr_dbd_type_e *types, apr_dbd_prepared_t **statement); static int outputParams(apr_dbd_t*, apr_dbd_prepared_t*); static int dbd_oracle_pselect(apr_pool_t *pool, apr_dbd_t *sql, apr_dbd_results_t **results, apr_dbd_prepared_t *statement, int seek, const char **values); static int dbd_oracle_pquery(apr_pool_t *pool, apr_dbd_t *sql, int *nrows, apr_dbd_prepared_t *statement, const char **values); static int dbd_oracle_start_transaction(apr_pool_t *pool, apr_dbd_t *sql, apr_dbd_transaction_t **trans); static int dbd_oracle_end_transaction(apr_dbd_transaction_t *trans); struct apr_dbd_transaction_t { int mode; enum { TRANS_NONE, TRANS_ERROR, TRANS_1, TRANS_2 } status; apr_dbd_t *handle; OCITrans *trans; OCISnapshot *snapshot1; OCISnapshot *snapshot2; }; struct apr_dbd_results_t { apr_pool_t *pool; apr_dbd_t* handle; unsigned int rownum; int seek; int nrows; apr_dbd_prepared_t *statement; }; struct apr_dbd_t { sword status; OCIError *err; OCIServer *svr; OCISvcCtx *svc; OCISession *auth; apr_dbd_transaction_t* trans; apr_pool_t *pool; char buf[ERR_BUF_SIZE]; /* for error messages */ apr_size_t long_size; apr_dbd_prepared_t *check_conn_stmt; }; struct apr_dbd_row_t { int n; apr_dbd_results_t *res; apr_pool_t *pool; }; typedef struct { apr_dbd_type_e type; sb2 ind; sb4 len; OCIBind *bind; union { void *raw; char *sval; int ival; unsigned int uval; double fval; OCILobLocator *lobval; } value; } bind_arg; typedef struct { int type; sb2 ind; ub2 len; /* length of actual output */ OCIDefine *defn; apr_size_t sz; /* length of buf for output */ union { void *raw; char *sval; OCILobLocator *lobval; } buf; const char *name; } define_arg; struct apr_dbd_prepared_t { OCIStmt *stmt; int nargs; int nvals; bind_arg *args; int nout; define_arg *out; apr_dbd_t *handle; apr_pool_t *pool; int type; }; /* AFAICT from the docs, the OCIEnv thingey can be used async * across threads, so lets have a global one. * * We'll need shorter-lived envs to deal with requests and connections * * Hmmm, that doesn't work: we don't have a usermem framework. * OK, forget about using APR pools here, until we figure out * the right way to do it (if such a thing exists). */ static OCIEnv *dbd_oracle_env = NULL; /* Oracle specific bucket for BLOB/CLOB types */ typedef struct apr_bucket_lob apr_bucket_lob; /** * A bucket referring to a Oracle BLOB/CLOB */ struct apr_bucket_lob { /** Number of buckets using this memory */ apr_bucket_refcount refcount; /** The row this bucket refers to */ const apr_dbd_row_t *row; /** The column this bucket refers to */ int col; /** The pool into which any needed structures should * be created while reading from this bucket */ apr_pool_t *readpool; }; static void lob_bucket_destroy(void *data); static apr_status_t lob_bucket_read(apr_bucket *e, const char **str, apr_size_t *len, apr_read_type_e block); static apr_bucket *apr_bucket_lob_make(apr_bucket *b, const apr_dbd_row_t *row, int col, apr_off_t offset, apr_size_t len, apr_pool_t *p); static apr_bucket *apr_bucket_lob_create(const apr_dbd_row_t *row, int col, apr_off_t offset, apr_size_t len, apr_pool_t *p, apr_bucket_alloc_t *list); static const apr_bucket_type_t apr_bucket_type_lob = { "LOB", 5, APR_BUCKET_DATA, lob_bucket_destroy, lob_bucket_read, apr_bucket_setaside_notimpl, apr_bucket_shared_split, apr_bucket_shared_copy }; static void lob_bucket_destroy(void *data) { apr_bucket_lob *f = data; if (apr_bucket_shared_destroy(f)) { /* no need to destroy database objects here; it will get * done automatically when the pool gets cleaned up */ apr_bucket_free(f); } } static apr_status_t lob_bucket_read(apr_bucket *e, const char **str, apr_size_t *len, apr_read_type_e block) { apr_bucket_lob *a = e->data; const apr_dbd_row_t *row = a->row; apr_dbd_results_t *res = row->res; int col = a->col; apr_bucket *b = NULL; apr_size_t blength = e->length; /* bytes remaining in file past offset */ apr_off_t boffset = e->start; define_arg *val = &res->statement->out[col]; apr_dbd_t *sql = res->handle; /* Only with 10g, unfortunately oraub8 length = APR_BUCKET_BUFF_SIZE; */ ub4 length = APR_BUCKET_BUFF_SIZE; char *buf = NULL; *str = NULL; /* in case we die prematurely */ /* fetch from offset if not at the beginning */ buf = apr_palloc(row->pool, APR_BUCKET_BUFF_SIZE); sql->status = OCILobRead(sql->svc, sql->err, val->buf.lobval, &length, 1 + (size_t)boffset, (dvoid*) buf, APR_BUCKET_BUFF_SIZE, NULL, NULL, 0, SQLCS_IMPLICIT); /* Only with 10g, unfortunately sql->status = OCILobRead2(sql->svc, sql->err, val->buf.lobval, &length, NULL, 1 + boffset, (dvoid*) buf, APR_BUCKET_BUFF_SIZE, OCI_ONE_PIECE, NULL, NULL, 0, SQLCS_IMPLICIT); */ if (sql->status != OCI_SUCCESS) { return APR_EGENERAL; } blength -= length; *len = length; *str = buf; /* * Change the current bucket to refer to what we read, * even if we read nothing because we hit EOF. */ apr_bucket_pool_make(e, *str, *len, res->pool); /* If we have more to read from the field, then create another bucket */ if (blength > 0) { /* for efficiency, we can just build a new apr_bucket struct * to wrap around the existing LOB bucket */ b = apr_bucket_alloc(sizeof(*b), e->list); b->start = boffset + *len; b->length = blength; b->data = a; b->type = &apr_bucket_type_lob; b->free = apr_bucket_free; b->list = e->list; APR_BUCKET_INSERT_AFTER(e, b); } else { lob_bucket_destroy(a); } return APR_SUCCESS; } static apr_bucket *apr_bucket_lob_make(apr_bucket *b, const apr_dbd_row_t *row, int col, apr_off_t offset, apr_size_t len, apr_pool_t *p) { apr_bucket_lob *f; f = apr_bucket_alloc(sizeof(*f), b->list); f->row = row; f->col = col; f->readpool = p; b = apr_bucket_shared_make(b, f, offset, len); b->type = &apr_bucket_type_lob; return b; } static apr_bucket *apr_bucket_lob_create(const apr_dbd_row_t *row, int col, apr_off_t offset, apr_size_t len, apr_pool_t *p, apr_bucket_alloc_t *list) { apr_bucket *b = apr_bucket_alloc(sizeof(*b), list); APR_BUCKET_INIT(b); b->free = apr_bucket_free; b->list = list; return apr_bucket_lob_make(b, row, col, offset, len, p); } static apr_status_t dbd_free_lobdesc(void *lob) { switch (OCIDescriptorFree(lob, OCI_DTYPE_LOB)) { case OCI_SUCCESS: return APR_SUCCESS; default: return APR_EGENERAL; } } static apr_status_t dbd_free_snapshot(void *snap) { switch (OCIDescriptorFree(snap, OCI_DTYPE_SNAP)) { case OCI_SUCCESS: return APR_SUCCESS; default: return APR_EGENERAL; } } static void dbd_oracle_init(apr_pool_t *pool) { if (dbd_oracle_env == NULL) { /* Sadly, OCI_SHARED seems to be impossible to use, due to * various Oracle bugs. See, for example, Oracle MetaLink bug 2972890 * and PHP bug http://bugs.php.net/bug.php?id=23733 */ #ifdef OCI_NEW_LENGTH_SEMANTICS OCIEnvCreate(&dbd_oracle_env, OCI_THREADED|OCI_NEW_LENGTH_SEMANTICS, NULL, NULL, NULL, NULL, 0, NULL); #else OCIEnvCreate(&dbd_oracle_env, OCI_THREADED, NULL, NULL, NULL, NULL, 0, NULL); #endif } } static apr_dbd_t *dbd_oracle_open(apr_pool_t *pool, const char *params, const char **error) { apr_dbd_t *ret = apr_pcalloc(pool, sizeof(apr_dbd_t)); int errorcode; char *BLANK = ""; struct { const char *field; char *value; } fields[] = { {"user", BLANK}, {"pass", BLANK}, {"dbname", BLANK}, {"server", BLANK}, {NULL, NULL} }; int i; const char *ptr; const char *key; size_t klen; const char *value; size_t vlen; static const char *const delims = " \r\n\t;|,"; ret->pool = pool; ret->long_size = DEFAULT_LONG_SIZE; /* snitch parsing from the MySQL driver */ for (ptr = strchr(params, '='); ptr; ptr = strchr(ptr, '=')) { /* don't dereference memory that may not belong to us */ if (ptr == params) { ++ptr; continue; } for (key = ptr-1; apr_isspace(*key); --key); klen = 0; while (apr_isalpha(*key)) { if (key == params) { /* Don't parse off the front of the params */ --key; ++klen; break; } --key; ++klen; } ++key; for (value = ptr+1; apr_isspace(*value); ++value); vlen = strcspn(value, delims); for (i=0; fields[i].field != NULL; ++i) { if (!strncasecmp(fields[i].field, key, klen)) { fields[i].value = apr_pstrndup(pool, value, vlen); break; } } ptr = value+vlen; } ret->status = OCIHandleAlloc(dbd_oracle_env, (dvoid**)&ret->err, OCI_HTYPE_ERROR, 0, NULL); switch (ret->status) { default: #ifdef DEBUG printf("ret->status is %d\n", ret->status); break; #else return NULL; #endif case OCI_SUCCESS: break; } ret->status = OCIHandleAlloc(dbd_oracle_env, (dvoid**)&ret->svr, OCI_HTYPE_SERVER, 0, NULL); switch (ret->status) { default: #ifdef DEBUG OCIErrorGet(ret->err, 1, NULL, &errorcode, ret->buf, sizeof(ret->buf), OCI_HTYPE_ERROR); printf("OPEN ERROR %d (alloc svr): %s\n", ret->status, ret->buf); break; #else if (error) { *error = apr_pcalloc(pool, ERR_BUF_SIZE); OCIErrorGet(ret->err, 1, NULL, &errorcode, (unsigned char*)(*error), ERR_BUF_SIZE, OCI_HTYPE_ERROR); } return NULL; #endif case OCI_SUCCESS: break; } ret->status = OCIHandleAlloc(dbd_oracle_env, (dvoid**)&ret->svc, OCI_HTYPE_SVCCTX, 0, NULL); switch (ret->status) { default: #ifdef DEBUG OCIErrorGet(ret->err, 1, NULL, &errorcode, ret->buf, sizeof(ret->buf), OCI_HTYPE_ERROR); printf("OPEN ERROR %d (alloc svc): %s\n", ret->status, ret->buf); break; #else if (error) { *error = apr_pcalloc(pool, ERR_BUF_SIZE); OCIErrorGet(ret->err, 1, NULL, &errorcode, (unsigned char*)(*error), ERR_BUF_SIZE, OCI_HTYPE_ERROR); } return NULL; #endif case OCI_SUCCESS: break; } /* All the examples use the #else */ #if CAN_DO_LOGIN ret->status = OCILogon(dbd_oracle_env, ret->err, &ret->svc, fields[0].value, strlen(fields[0].value), fields[1].value, strlen(fields[1].value), fields[2].value, strlen(fields[2].value)); switch (ret->status) { default: #ifdef DEBUG OCIErrorGet(ret->err, 1, NULL, &errorcode, ret->buf, sizeof(ret->buf), OCI_HTYPE_ERROR); printf("OPEN ERROR: %s\n", ret->buf); break; #else if (error) { *error = apr_pcalloc(pool, ERR_BUF_SIZE); OCIErrorGet(ret->err, 1, NULL, &errorcode, (unsigned char*)(*error), ERR_BUF_SIZE, OCI_HTYPE_ERROR); } return NULL; #endif case OCI_SUCCESS: break; } #else ret->status = OCIServerAttach(ret->svr, ret->err, (text*) fields[3].value, strlen(fields[3].value), OCI_DEFAULT); switch (ret->status) { default: #ifdef DEBUG OCIErrorGet(ret->err, 1, NULL, &errorcode, ret->buf, sizeof(ret->buf), OCI_HTYPE_ERROR); printf("OPEN ERROR %d (server attach): %s\n", ret->status, ret->buf); break; #else if (error) { *error = apr_pcalloc(pool, ERR_BUF_SIZE); OCIErrorGet(ret->err, 1, NULL, &errorcode, (unsigned char*)(*error), ERR_BUF_SIZE, OCI_HTYPE_ERROR); } return NULL; #endif case OCI_SUCCESS: break; } ret->status = OCIAttrSet(ret->svc, OCI_HTYPE_SVCCTX, ret->svr, 0, OCI_ATTR_SERVER, ret->err); switch (ret->status) { default: #ifdef DEBUG OCIErrorGet(ret->err, 1, NULL, &errorcode, ret->buf, sizeof(ret->buf), OCI_HTYPE_ERROR); printf("OPEN ERROR %d (attr set): %s\n", ret->status, ret->buf); break; #else if (error) { *error = apr_pcalloc(pool, ERR_BUF_SIZE); OCIErrorGet(ret->err, 1, NULL, &errorcode, (unsigned char*)(*error), ERR_BUF_SIZE, OCI_HTYPE_ERROR); } return NULL; #endif case OCI_SUCCESS: break; } ret->status = OCIHandleAlloc(dbd_oracle_env, (dvoid**)&ret->auth, OCI_HTYPE_SESSION, 0, NULL); switch (ret->status) { default: #ifdef DEBUG OCIErrorGet(ret->err, 1, NULL, &errorcode, ret->buf, sizeof(ret->buf), OCI_HTYPE_ERROR); printf("OPEN ERROR %d (alloc auth): %s\n", ret->status, ret->buf); break; #else if (error) { *error = apr_pcalloc(pool, ERR_BUF_SIZE); OCIErrorGet(ret->err, 1, NULL, &errorcode, (unsigned char*)(*error), ERR_BUF_SIZE, OCI_HTYPE_ERROR); } return NULL; #endif case OCI_SUCCESS: break; } ret->status = OCIAttrSet(ret->auth, OCI_HTYPE_SESSION, fields[0].value, strlen(fields[0].value), OCI_ATTR_USERNAME, ret->err); switch (ret->status) { default: #ifdef DEBUG OCIErrorGet(ret->err, 1, NULL, &errorcode, ret->buf, sizeof(ret->buf), OCI_HTYPE_ERROR); printf("OPEN ERROR %d (attr username): %s\n", ret->status, ret->buf); break; #else if (error) { *error = apr_pcalloc(pool, ERR_BUF_SIZE); OCIErrorGet(ret->err, 1, NULL, &errorcode, (unsigned char*)(*error), ERR_BUF_SIZE, OCI_HTYPE_ERROR); } return NULL; #endif case OCI_SUCCESS: break; } ret->status = OCIAttrSet(ret->auth, OCI_HTYPE_SESSION, fields[1].value, strlen(fields[1].value), OCI_ATTR_PASSWORD, ret->err); switch (ret->status) { default: #ifdef DEBUG OCIErrorGet(ret->err, 1, NULL, &errorcode, ret->buf, sizeof(ret->buf), OCI_HTYPE_ERROR); printf("OPEN ERROR %d (attr password): %s\n", ret->status, ret->buf); break; #else if (error) { *error = apr_pcalloc(pool, ERR_BUF_SIZE); OCIErrorGet(ret->err, 1, NULL, &errorcode, (unsigned char*)(*error), ERR_BUF_SIZE, OCI_HTYPE_ERROR); } return NULL; #endif case OCI_SUCCESS: break; } ret->status = OCISessionBegin(ret->svc, ret->err, ret->auth, OCI_CRED_RDBMS, OCI_DEFAULT); switch (ret->status) { default: #ifdef DEBUG OCIErrorGet(ret->err, 1, NULL, &errorcode, ret->buf, sizeof(ret->buf), OCI_HTYPE_ERROR); printf("OPEN ERROR %d (session begin): %s\n", ret->status, ret->buf); break; #else if (error) { *error = apr_pcalloc(pool, ERR_BUF_SIZE); OCIErrorGet(ret->err, 1, NULL, &errorcode, (unsigned char*)(*error), ERR_BUF_SIZE, OCI_HTYPE_ERROR); } return NULL; #endif case OCI_SUCCESS: break; } ret->status = OCIAttrSet(ret->svc, OCI_HTYPE_SVCCTX, ret->auth, 0, OCI_ATTR_SESSION, ret->err); switch (ret->status) { default: #ifdef DEBUG OCIErrorGet(ret->err, 1, NULL, &errorcode, ret->buf, sizeof(ret->buf), OCI_HTYPE_ERROR); printf("OPEN ERROR %d (attr session): %s\n", ret->status, ret->buf); #else if (error) { *error = apr_pcalloc(pool, ERR_BUF_SIZE); OCIErrorGet(ret->err, 1, NULL, &errorcode, (unsigned char*)(*error), ERR_BUF_SIZE, OCI_HTYPE_ERROR); } return NULL; #endif break; case OCI_SUCCESS: break; } #endif if(dbd_oracle_prepare(pool, ret, CHECK_CONN_QUERY, NULL, 0, 0, NULL, &ret->check_conn_stmt) != 0) { return NULL; } return ret; } #ifdef EXPORT_NATIVE_FUNCS static apr_size_t dbd_oracle_long_size_set(apr_dbd_t *sql, apr_size_t long_size) { apr_size_t old_size = sql->long_size; sql->long_size = long_size; return old_size; } #endif static const char *dbd_oracle_get_name(const apr_dbd_results_t *res, int n) { define_arg *val = &res->statement->out[n]; if ((n < 0) || (n >= res->statement->nout)) { return NULL; } return val->name; } static int dbd_oracle_get_row(apr_pool_t *pool, apr_dbd_results_t *res, apr_dbd_row_t **rowp, int rownum) { apr_dbd_row_t *row = *rowp; apr_dbd_t *sql = res->handle; int_errorcode; if (row == NULL) { row = apr_palloc(pool, sizeof(apr_dbd_row_t)); *rowp = row; row->res = res; /* Oracle starts counting at 1 according to the docs */ row->n = res->seek ? rownum : 1; row->pool = pool; } else { if (res->seek) { row->n = rownum; } else { ++row->n; } } if (res->seek) { sql->status = OCIStmtFetch2(res->statement->stmt, res->handle->err, 1, OCI_FETCH_ABSOLUTE, row->n, OCI_DEFAULT); } else { sql->status = OCIStmtFetch2(res->statement->stmt, res->handle->err, 1, OCI_FETCH_NEXT, 0, OCI_DEFAULT); } switch (sql->status) { case OCI_SUCCESS: (*rowp)->res = res; return 0; case OCI_NO_DATA: return -1; case OCI_ERROR: #ifdef DEBUG OCIErrorGet(sql->err, 1, NULL, &errorcode, sql->buf, sizeof(sql->buf), OCI_HTYPE_ERROR); printf("Execute error %d: %s\n", sql->status, sql->buf); #endif /* fallthrough */ default: return 1; } return 0; } static const char *dbd_oracle_error(apr_dbd_t *sql, int n) { /* This is ugly. Needs us to pass in a buffer of unknown size. * Either we put it on the handle, or we have to keep allocing/copying */ sb4 errorcode; switch (sql->status) { case OCI_SUCCESS: return "OCI_SUCCESS"; case OCI_SUCCESS_WITH_INFO: return "OCI_SUCCESS_WITH_INFO"; case OCI_NEED_DATA: return "OCI_NEED_DATA"; case OCI_NO_DATA: return "OCI_NO_DATA"; case OCI_INVALID_HANDLE: return "OCI_INVALID_HANDLE"; case OCI_STILL_EXECUTING: return "OCI_STILL_EXECUTING"; case OCI_CONTINUE: return "OCI_CONTINUE"; } switch (OCIErrorGet(sql->err, 1, NULL, &errorcode, (text*) sql->buf, sizeof(sql->buf), OCI_HTYPE_ERROR)) { case OCI_SUCCESS: return sql->buf; default: return "internal error: OCIErrorGet failed"; } } static apr_status_t freeStatement(void *statement) { int rv = APR_SUCCESS; OCIStmt *stmt = ((apr_dbd_prepared_t*)statement)->stmt; #ifdef PREPARE2 OCIError *err; if (OCIHandleAlloc(dbd_oracle_env, (dvoid**)&err, OCI_HTYPE_ERROR, 0, NULL) != OCI_SUCCESS) { return APR_EGENERAL; } if (OCIStmtRelease(stmt, err, NULL, 0, OCI_DEFAULT) != OCI_SUCCESS) { rv = APR_EGENERAL; } if (OCIHandleFree(err, OCI_HTYPE_ERROR) != OCI_SUCCESS) { rv = APR_EGENERAL; } #else if (OCIHandleFree(stmt, OCI_HTYPE_STMT) != OCI_SUCCESS) { rv = APR_EGENERAL; } #endif return rv; } static int dbd_oracle_select(apr_pool_t *pool, apr_dbd_t *sql, apr_dbd_results_t **results, const char *query, int seek) { int ret = 0; apr_dbd_prepared_t *statement = NULL; ret = dbd_oracle_prepare(pool, sql, query, NULL, 0, 0, NULL, &statement); if (ret != 0) { return ret; } ret = dbd_oracle_pselect(pool, sql, results, statement, seek, NULL); if (ret != 0) { return ret; } return ret; } static int dbd_oracle_query(apr_dbd_t *sql, int *nrows, const char *query) { int ret = 0; apr_pool_t *pool; apr_dbd_prepared_t *statement = NULL; if (sql->trans && sql->trans->status == TRANS_ERROR) { return 1; } /* make our own pool so that APR allocations don't linger and so that * both Stmt and LOB handles are cleaned up (LOB handles may be * allocated when preparing APR_DBD_TYPE_CLOB/BLOBs) */ apr_pool_create(&pool, sql->pool); ret = dbd_oracle_prepare(pool, sql, query, NULL, 0, 0, NULL, &statement); if (ret == 0) { ret = dbd_oracle_pquery(pool, sql, nrows, statement, NULL); if (ret == 0) { sql->status = OCIAttrGet(statement->stmt, OCI_HTYPE_STMT, nrows, 0, OCI_ATTR_ROW_COUNT, sql->err); } } apr_pool_destroy(pool); return ret; } static const char *dbd_oracle_escape(apr_pool_t *pool, const char *arg, apr_dbd_t *sql) { return arg; /* OCI has no concept of string escape */ } static int dbd_oracle_prepare(apr_pool_t *pool, apr_dbd_t *sql, const char *query, const char *label, int nargs, int nvals, apr_dbd_type_e *types, apr_dbd_prepared_t **statement) { int ret = 0; int i; apr_dbd_prepared_t *stmt ; if (*statement == NULL) { *statement = apr_pcalloc(pool, sizeof(apr_dbd_prepared_t)); } stmt = *statement; stmt->handle = sql; stmt->pool = pool; stmt->nargs = nargs; stmt->nvals = nvals; /* populate our own args, if any */ if (nargs > 0) { stmt->args = apr_pcalloc(pool, nargs*sizeof(bind_arg)); for (i = 0; i < nargs; i++) { stmt->args[i].type = types[i]; } } sql->status = OCIHandleAlloc(dbd_oracle_env, (dvoid**) &stmt->stmt, OCI_HTYPE_STMT, 0, NULL); if (sql->status != OCI_SUCCESS) { return 1; } sql->status = OCIStmtPrepare(stmt->stmt, sql->err, (text*) query, strlen(query), OCI_NTV_SYNTAX, OCI_DEFAULT); if (sql->status != OCI_SUCCESS) { OCIHandleFree(stmt->stmt, OCI_HTYPE_STMT); return 1; } apr_pool_cleanup_register(pool, stmt, freeStatement, apr_pool_cleanup_null); /* Perl gets statement type here */ sql->status = OCIAttrGet(stmt->stmt, OCI_HTYPE_STMT, &stmt->type, 0, OCI_ATTR_STMT_TYPE, sql->err); if (sql->status != OCI_SUCCESS) { return 1; } /* Perl sets PREFETCH_MEMORY here, but the docs say there's a working default */ #if 0 sql->status = OCIAttrSet(stmt->stmt, OCI_HTYPE_STMT, &prefetch_size, sizeof(prefetch_size), OCI_ATTR_PREFETCH_MEMORY, sql->err); if (sql->status != OCI_SUCCESS) { return 1; } #endif if (stmt->type == OCI_STMT_SELECT) { ret = outputParams(sql, stmt); } return ret; } static void dbd_oracle_bind(apr_dbd_prepared_t *statement, const char **values) { OCIStmt *stmt = statement->stmt; apr_dbd_t *sql = statement->handle; int i, j; sb2 null_ind = -1; for (i = 0, j = 0; i < statement->nargs; i++, j++) { if (values[j] == NULL) { sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, NULL, 0, SQLT_STR, &null_ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); } else { switch (statement->args[i].type) { case APR_DBD_TYPE_BLOB: { char *data = (char *)values[j]; int size = atoi((char*)values[++j]); /* skip table and column for now */ j += 2; sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, data, size, SQLT_LBI, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); } break; case APR_DBD_TYPE_CLOB: { char *data = (char *)values[j]; int size = atoi((char*)values[++j]); /* skip table and column for now */ j += 2; sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, data, size, SQLT_LNG, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); } break; default: sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, (dvoid*) values[j], strlen(values[j]) + 1, SQLT_STR, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); break; } } if (sql->status != OCI_SUCCESS) { return; } } return; } static int outputParams(apr_dbd_t *sql, apr_dbd_prepared_t *stmt) { OCIParam *parms; int i; ub2 paramtype[DBD_ORACLE_MAX_COLUMNS]; ub2 paramsize[DBD_ORACLE_MAX_COLUMNS]; char *paramname[DBD_ORACLE_MAX_COLUMNS]; ub4 paramnamelen[DBD_ORACLE_MAX_COLUMNS]; int_errorcode; /* Perl uses 0 where we used 1 */ sql->status = OCIStmtExecute(sql->svc, stmt->stmt, sql->err, 0, 0, NULL, NULL, OCI_DESCRIBE_ONLY); switch (sql->status) { case OCI_SUCCESS: case OCI_SUCCESS_WITH_INFO: break; case OCI_ERROR: #ifdef DEBUG OCIErrorGet(sql->err, 1, NULL, &errorcode, sql->buf, sizeof(sql->buf), OCI_HTYPE_ERROR); printf("Describing prepared statement: %s\n", sql->buf); #endif default: return 1; } while (sql->status == OCI_SUCCESS) { sql->status = OCIParamGet(stmt->stmt, OCI_HTYPE_STMT, sql->err, (dvoid**)&parms, stmt->nout+1); switch (sql->status) { case OCI_SUCCESS: sql->status = OCIAttrGet(parms, OCI_DTYPE_PARAM, ¶mtype[stmt->nout], 0, OCI_ATTR_DATA_TYPE, sql->err); sql->status = OCIAttrGet(parms, OCI_DTYPE_PARAM, ¶msize[stmt->nout], 0, OCI_ATTR_DATA_SIZE, sql->err); sql->status = OCIAttrGet(parms, OCI_DTYPE_PARAM, ¶mname[stmt->nout], ¶mnamelen[stmt->nout], OCI_ATTR_NAME, sql->err); ++stmt->nout; } } switch (sql->status) { case OCI_SUCCESS: break; case OCI_ERROR: break; /* this is what we expect at end-of-loop */ default: return 1; } /* OK, the above works. We have the params; now OCIDefine them */ stmt->out = apr_palloc(stmt->pool, stmt->nout*sizeof(define_arg)); for (i=0; i<stmt->nout; ++i) { stmt->out[i].type = paramtype[i]; stmt->out[i].len = stmt->out[i].sz = paramsize[i]; stmt->out[i].name = apr_pstrmemdup(stmt->pool, paramname[i], paramnamelen[i]); switch (stmt->out[i].type) { default: switch (stmt->out[i].type) { case SQLT_NUM: /* 2: numeric, Perl worst case=130+38+3 */ stmt->out[i].sz = 171; break; case SQLT_CHR: /* 1: char */ case SQLT_AFC: /* 96: ANSI fixed char */ stmt->out[i].sz *= 4; /* ugh, wasteful UCS-4 handling */ break; case SQLT_DAT: /* 12: date, depends on NLS date format */ stmt->out[i].sz = 75; break; case SQLT_BIN: /* 23: raw binary, perhaps UTF-16? */ stmt->out[i].sz *= 2; break; case SQLT_RID: /* 11: rowid */ case SQLT_RDD: /* 104: rowid descriptor */ stmt->out[i].sz = 20; break; case SQLT_TIMESTAMP: /* 187: timestamp */ case SQLT_TIMESTAMP_TZ: /* 188: timestamp with time zone */ case SQLT_INTERVAL_YM: /* 189: interval year-to-month */ case SQLT_INTERVAL_DS: /* 190: interval day-to-second */ case SQLT_TIMESTAMP_LTZ: /* 232: timestamp with local time zone */ stmt->out[i].sz = 75; break; default: #ifdef DEBUG printf("Unsupported data type: %d\n", stmt->out[i].type); #endif break; } ++stmt->out[i].sz; stmt->out[i].buf.raw = apr_palloc(stmt->pool, stmt->out[i].sz); sql->status = OCIDefineByPos(stmt->stmt, &stmt->out[i].defn, sql->err, i+1, stmt->out[i].buf.sval, stmt->out[i].sz, SQLT_STR, &stmt->out[i].ind, &stmt->out[i].len, 0, OCI_DEFAULT); break; case SQLT_LNG: /* 8: long */ stmt->out[i].sz = sql->long_size * 4 + 4; /* ugh, UCS-4 handling */ stmt->out[i].buf.raw = apr_palloc(stmt->pool, stmt->out[i].sz); sql->status = OCIDefineByPos(stmt->stmt, &stmt->out[i].defn, sql->err, i+1, stmt->out[i].buf.raw, stmt->out[i].sz, SQLT_LVC, &stmt->out[i].ind, NULL, 0, OCI_DEFAULT); break; case SQLT_LBI: /* 24: long binary, perhaps UTF-16? */ stmt->out[i].sz = sql->long_size * 2 + 4; /* room for int prefix */ stmt->out[i].buf.raw = apr_palloc(stmt->pool, stmt->out[i].sz); sql->status = OCIDefineByPos(stmt->stmt, &stmt->out[i].defn, sql->err, i+1, stmt->out[i].buf.raw, stmt->out[i].sz, SQLT_LVB, &stmt->out[i].ind, NULL, 0, OCI_DEFAULT); break; case SQLT_BLOB: /* 113 */ case SQLT_CLOB: /* 112 */ /*http://download-west.oracle.com/docs/cd/B10501_01/appdev.920/a96584/oci05bnd.htm#434937*/ sql->status = OCIDescriptorAlloc(dbd_oracle_env, (dvoid**)&stmt->out[i].buf.lobval, OCI_DTYPE_LOB, 0, NULL); apr_pool_cleanup_register(stmt->pool, stmt->out[i].buf.lobval, dbd_free_lobdesc, apr_pool_cleanup_null); sql->status = OCIDefineByPos(stmt->stmt, &stmt->out[i].defn, sql->err, i+1, (dvoid*) &stmt->out[i].buf.lobval, -1, stmt->out[i].type, &stmt->out[i].ind, &stmt->out[i].len, 0, OCI_DEFAULT); break; } switch (sql->status) { case OCI_SUCCESS: break; default: return 1; } } return 0; } static int dbd_oracle_pquery(apr_pool_t *pool, apr_dbd_t *sql, int *nrows, apr_dbd_prepared_t *statement, const char **values) { OCISnapshot *oldsnapshot = NULL; OCISnapshot *newsnapshot = NULL; apr_dbd_transaction_t* trans = sql->trans; int exec_mode; int_errorcode; if (trans) { switch (trans->status) { case TRANS_ERROR: return -1; case TRANS_NONE: trans = NULL; break; case TRANS_1: oldsnapshot = trans->snapshot1; newsnapshot = trans->snapshot2; trans->status = TRANS_2; break; case TRANS_2: oldsnapshot = trans->snapshot2; newsnapshot = trans->snapshot1; trans->status = TRANS_1; break; } exec_mode = OCI_DEFAULT; } else { exec_mode = OCI_COMMIT_ON_SUCCESS; } dbd_oracle_bind(statement, values); sql->status = OCIStmtExecute(sql->svc, statement->stmt, sql->err, 1, 0, oldsnapshot, newsnapshot, exec_mode); switch (sql->status) { case OCI_SUCCESS: break; case OCI_ERROR: #ifdef DEBUG OCIErrorGet(sql->err, 1, NULL, &errorcode, sql->buf, sizeof(sql->buf), OCI_HTYPE_ERROR); printf("Execute error %d: %s\n", sql->status, sql->buf); #endif /* fallthrough */ default: if (TXN_NOTICE_ERRORS(trans)) { trans->status = TRANS_ERROR; } return 1; } sql->status = OCIAttrGet(statement->stmt, OCI_HTYPE_STMT, nrows, 0, OCI_ATTR_ROW_COUNT, sql->err); return 0; } static int dbd_oracle_pvquery(apr_pool_t *pool, apr_dbd_t *sql, int *nrows, apr_dbd_prepared_t *statement, va_list args) { const char **values; int i; if (sql->trans && sql->trans->status == TRANS_ERROR) { return -1; } values = apr_palloc(pool, sizeof(*values) * statement->nvals); for (i = 0; i < statement->nvals; i++) { values[i] = va_arg(args, const char*); } return dbd_oracle_pquery(pool, sql, nrows, statement, values); } static int dbd_oracle_pselect(apr_pool_t *pool, apr_dbd_t *sql, apr_dbd_results_t **results, apr_dbd_prepared_t *statement, int seek, const char **values) { int exec_mode = seek ? OCI_STMT_SCROLLABLE_READONLY : OCI_DEFAULT; OCISnapshot *oldsnapshot = NULL; OCISnapshot *newsnapshot = NULL; apr_dbd_transaction_t* trans = sql->trans; int_errorcode; if (trans) { switch (trans->status) { case TRANS_ERROR: return 1; case TRANS_NONE: trans = NULL; break; case TRANS_1: oldsnapshot = trans->snapshot1; newsnapshot = trans->snapshot2; trans->status = TRANS_2; break; case TRANS_2: oldsnapshot = trans->snapshot2; newsnapshot = trans->snapshot1; trans->status = TRANS_1; break; } } dbd_oracle_bind(statement, values); sql->status = OCIStmtExecute(sql->svc, statement->stmt, sql->err, 0, 0, oldsnapshot, newsnapshot, exec_mode); switch (sql->status) { case OCI_SUCCESS: break; case OCI_ERROR: #ifdef DEBUG OCIErrorGet(sql->err, 1, NULL, &errorcode, sql->buf, sizeof(sql->buf), OCI_HTYPE_ERROR); printf("Executing prepared statement: %s\n", sql->buf); #endif /* fallthrough */ default: if (TXN_NOTICE_ERRORS(trans)) { trans->status = TRANS_ERROR; } return 1; } if (!*results) { *results = apr_palloc(pool, sizeof(apr_dbd_results_t)); } (*results)->handle = sql; (*results)->statement = statement; (*results)->seek = seek; (*results)->rownum = seek ? 0 : -1; (*results)->pool = pool; return 0; } static int dbd_oracle_pvselect(apr_pool_t *pool, apr_dbd_t *sql, apr_dbd_results_t **results, apr_dbd_prepared_t *statement, int seek, va_list args) { const char **values; int i; if (sql->trans && sql->trans->status == TRANS_ERROR) { return -1; } values = apr_palloc(pool, sizeof(*values) * statement->nvals); for (i = 0; i < statement->nvals; i++) { values[i] = va_arg(args, const char*); } return dbd_oracle_pselect(pool, sql, results, statement, seek, values); } static void dbd_oracle_bbind(apr_dbd_prepared_t * statement, const void **values) { OCIStmt *stmt = statement->stmt; apr_dbd_t *sql = statement->handle; int i, j; sb2 null_ind = -1; apr_dbd_type_e type; for (i = 0, j = 0; i < statement->nargs; i++, j++) { type = (values[j] == NULL ? APR_DBD_TYPE_NULL : statement->args[i].type); switch (type) { case APR_DBD_TYPE_TINY: statement->args[i].value.ival = *(char*)values[j]; sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, &statement->args[i].value.ival, sizeof(statement->args[i].value.ival), SQLT_INT, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); break; case APR_DBD_TYPE_UTINY: statement->args[i].value.uval = *(unsigned char*)values[j]; sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, &statement->args[i].value.uval, sizeof(statement->args[i].value.uval), SQLT_UIN, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); break; case APR_DBD_TYPE_SHORT: statement->args[i].value.ival = *(short*)values[j]; sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, &statement->args[i].value.ival, sizeof(statement->args[i].value.ival), SQLT_INT, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); break; case APR_DBD_TYPE_USHORT: statement->args[i].value.uval = *(unsigned short*)values[j]; sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, &statement->args[i].value.uval, sizeof(statement->args[i].value.uval), SQLT_UIN, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); break; case APR_DBD_TYPE_INT: statement->args[i].value.ival = *(int*)values[j]; sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, &statement->args[i].value.ival, sizeof(statement->args[i].value.ival), SQLT_INT, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); break; case APR_DBD_TYPE_UINT: statement->args[i].value.uval = *(unsigned int*)values[j]; sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, &statement->args[i].value.uval, sizeof(statement->args[i].value.uval), SQLT_UIN, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); break; case APR_DBD_TYPE_LONG: statement->args[i].value.sval = apr_psprintf(statement->pool, "%ld", *(long*)values[j]); sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, statement->args[i].value.sval, strlen(statement->args[i].value.sval)+1, SQLT_STR, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); break; case APR_DBD_TYPE_ULONG: statement->args[i].value.sval = apr_psprintf(statement->pool, "%lu", *(unsigned long*)values[j]); sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, statement->args[i].value.sval, strlen(statement->args[i].value.sval)+1, SQLT_STR, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); break; case APR_DBD_TYPE_LONGLONG: statement->args[i].value.sval = apr_psprintf(statement->pool, "%" APR_INT64_T_FMT, *(apr_int64_t*)values[j]); sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, statement->args[i].value.sval, strlen(statement->args[i].value.sval)+1, SQLT_STR, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); break; case APR_DBD_TYPE_ULONGLONG: statement->args[i].value.sval = apr_psprintf(statement->pool, "%" APR_UINT64_T_FMT, *(apr_uint64_t*)values[j]); sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, statement->args[i].value.sval, strlen(statement->args[i].value.sval)+1, SQLT_UIN, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); break; case APR_DBD_TYPE_FLOAT: statement->args[i].value.fval = *(float*)values[j]; sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, &statement->args[i].value.fval, sizeof(statement->args[i].value.fval), SQLT_FLT, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); break; case APR_DBD_TYPE_DOUBLE: statement->args[i].value.fval = *(double*)values[j]; sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, &statement->args[i].value.fval, sizeof(statement->args[i].value.fval), SQLT_FLT, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); break; case APR_DBD_TYPE_STRING: case APR_DBD_TYPE_TEXT: case APR_DBD_TYPE_TIME: case APR_DBD_TYPE_DATE: case APR_DBD_TYPE_DATETIME: case APR_DBD_TYPE_TIMESTAMP: case APR_DBD_TYPE_ZTIMESTAMP: sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, (dvoid*) values[j], strlen(values[j]) + 1, SQLT_STR, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); break; case APR_DBD_TYPE_BLOB: { char *data = (char *)values[j]; apr_size_t size = *(apr_size_t*)values[++j]; /* skip table and column for now */ j += 2; sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, data, size, SQLT_LBI, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); } break; case APR_DBD_TYPE_CLOB: { char *data = (char *)values[j]; apr_size_t size = *(apr_size_t*)values[++j]; /* skip table and column for now */ j += 2; sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, data, size, SQLT_LNG, &statement->args[i].ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); } break; case APR_DBD_TYPE_NULL: default: sql->status = OCIBindByPos(stmt, &statement->args[i].bind, sql->err, i + 1, NULL, 0, SQLT_STR, &null_ind, NULL, (ub2) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT); break; } if (sql->status != OCI_SUCCESS) { return; } } return; } static int dbd_oracle_pbquery(apr_pool_t * pool, apr_dbd_t * sql, int *nrows, apr_dbd_prepared_t * statement, const void **values) { OCISnapshot *oldsnapshot = NULL; OCISnapshot *newsnapshot = NULL; apr_dbd_transaction_t* trans = sql->trans; int exec_mode; int_errorcode; if (trans) { switch (trans->status) { case TRANS_ERROR: return -1; case TRANS_NONE: trans = NULL; break; case TRANS_1: oldsnapshot = trans->snapshot1; newsnapshot = trans->snapshot2; trans->status = TRANS_2; break; case TRANS_2: oldsnapshot = trans->snapshot2; newsnapshot = trans->snapshot1; trans->status = TRANS_1; break; } exec_mode = OCI_DEFAULT; } else { exec_mode = OCI_COMMIT_ON_SUCCESS; } dbd_oracle_bbind(statement, values); sql->status = OCIStmtExecute(sql->svc, statement->stmt, sql->err, 1, 0, oldsnapshot, newsnapshot, exec_mode); switch (sql->status) { case OCI_SUCCESS: break; case OCI_ERROR: #ifdef DEBUG OCIErrorGet(sql->err, 1, NULL, &errorcode, sql->buf, sizeof(sql->buf), OCI_HTYPE_ERROR); printf("Execute error %d: %s\n", sql->status, sql->buf); #endif /* fallthrough */ default: if (TXN_NOTICE_ERRORS(trans)) { trans->status = TRANS_ERROR; } return 1; } sql->status = OCIAttrGet(statement->stmt, OCI_HTYPE_STMT, nrows, 0, OCI_ATTR_ROW_COUNT, sql->err); return 0; } static int dbd_oracle_pvbquery(apr_pool_t * pool, apr_dbd_t * sql, int *nrows, apr_dbd_prepared_t * statement, va_list args) { const void **values; int i; if (sql->trans && sql->trans->status == TRANS_ERROR) { return -1; } values = apr_palloc(pool, sizeof(*values) * statement->nvals); for (i = 0; i < statement->nvals; i++) { values[i] = va_arg(args, const void*); } return dbd_oracle_pbquery(pool, sql, nrows, statement, values); } static int dbd_oracle_pbselect(apr_pool_t * pool, apr_dbd_t * sql, apr_dbd_results_t ** results, apr_dbd_prepared_t * statement, int seek, const void **values) { int exec_mode = seek ? OCI_STMT_SCROLLABLE_READONLY : OCI_DEFAULT; OCISnapshot *oldsnapshot = NULL; OCISnapshot *newsnapshot = NULL; apr_dbd_transaction_t* trans = sql->trans; int_errorcode; if (trans) { switch (trans->status) { case TRANS_ERROR: return 1; case TRANS_NONE: trans = NULL; break; case TRANS_1: oldsnapshot = trans->snapshot1; newsnapshot = trans->snapshot2; trans->status = TRANS_2; break; case TRANS_2: oldsnapshot = trans->snapshot2; newsnapshot = trans->snapshot1; trans->status = TRANS_1; break; } } dbd_oracle_bbind(statement, values); sql->status = OCIStmtExecute(sql->svc, statement->stmt, sql->err, 0, 0, oldsnapshot, newsnapshot, exec_mode); switch (sql->status) { case OCI_SUCCESS: break; case OCI_ERROR: #ifdef DEBUG OCIErrorGet(sql->err, 1, NULL, &errorcode, sql->buf, sizeof(sql->buf), OCI_HTYPE_ERROR); printf("Executing prepared statement: %s\n", sql->buf); #endif /* fallthrough */ default: if (TXN_NOTICE_ERRORS(trans)) { trans->status = TRANS_ERROR; } return 1; } if (!*results) { *results = apr_palloc(pool, sizeof(apr_dbd_results_t)); } (*results)->handle = sql; (*results)->statement = statement; (*results)->seek = seek; (*results)->rownum = seek ? 0 : -1; (*results)->pool = pool; return 0; } static int dbd_oracle_pvbselect(apr_pool_t * pool, apr_dbd_t * sql, apr_dbd_results_t ** results, apr_dbd_prepared_t * statement, int seek, va_list args) { const void **values; int i; if (sql->trans && sql->trans->status == TRANS_ERROR) { return -1; } values = apr_palloc(pool, sizeof(*values) * statement->nvals); for (i = 0; i < statement->nvals; i++) { values[i] = va_arg(args, const void*); } return dbd_oracle_pbselect(pool, sql, results, statement, seek, values); } static int dbd_oracle_start_transaction(apr_pool_t *pool, apr_dbd_t *sql, apr_dbd_transaction_t **trans) { int ret = 0; int_errorcode; if (*trans) { dbd_oracle_end_transaction(*trans); } else { *trans = apr_pcalloc(pool, sizeof(apr_dbd_transaction_t)); OCIHandleAlloc(dbd_oracle_env, (dvoid**)&(*trans)->trans, OCI_HTYPE_TRANS, 0, 0); OCIAttrSet(sql->svc, OCI_HTYPE_SVCCTX, (*trans)->trans, 0, OCI_ATTR_TRANS, sql->err); } sql->status = OCITransStart(sql->svc, sql->err, TRANS_TIMEOUT, OCI_TRANS_NEW); switch (sql->status) { case OCI_ERROR: #ifdef DEBUG OCIErrorGet(sql->err, 1, NULL, &errorcode, sql->buf, sizeof(sql->buf), OCI_HTYPE_ERROR); printf("Transaction: %s\n", sql->buf); #endif ret = 1; break; case OCI_SUCCESS: (*trans)->handle = sql; (*trans)->status = TRANS_1; sql->trans = *trans; switch (OCIDescriptorAlloc(dbd_oracle_env, (dvoid**)&(*trans)->snapshot1, OCI_DTYPE_SNAP, 0, NULL)) { case OCI_SUCCESS: apr_pool_cleanup_register(pool, (*trans)->snapshot1, dbd_free_snapshot, apr_pool_cleanup_null); break; case OCI_INVALID_HANDLE: ret = 1; break; } switch (OCIDescriptorAlloc(dbd_oracle_env, (dvoid**)&(*trans)->snapshot2, OCI_DTYPE_SNAP, 0, NULL)) { case OCI_SUCCESS: apr_pool_cleanup_register(pool, (*trans)->snapshot2, dbd_free_snapshot, apr_pool_cleanup_null); break; case OCI_INVALID_HANDLE: ret = 1; break; } break; default: ret = 1; break; } return ret; } static int dbd_oracle_end_transaction(apr_dbd_transaction_t *trans) { int ret = 1; /* no transaction is an error cond */ sword status; apr_dbd_t *handle = trans->handle; if (trans) { switch (trans->status) { case TRANS_NONE: /* No trans is an error here */ status = OCI_ERROR; break; case TRANS_ERROR: status = OCITransRollback(handle->svc, handle->err, OCI_DEFAULT); break; default: /* rollback on explicit rollback request */ if (TXN_DO_ROLLBACK(trans)) { status = OCITransRollback(handle->svc, handle->err, OCI_DEFAULT); } else { status = OCITransCommit(handle->svc, handle->err, OCI_DEFAULT); } break; } handle->trans = NULL; switch (status) { case OCI_SUCCESS: ret = 0; break; default: ret = 3; break; } } return ret; } static int dbd_oracle_transaction_mode_get(apr_dbd_transaction_t *trans) { if (!trans) return APR_DBD_TRANSACTION_COMMIT; return trans->mode; } static int dbd_oracle_transaction_mode_set(apr_dbd_transaction_t *trans, int mode) { if (!trans) return APR_DBD_TRANSACTION_COMMIT; return trans->mode = (mode & TXN_MODE_BITS); } /* This doesn't work for BLOB because of NULLs, but it can fake it * if the BLOB is really a string */ static const char *dbd_oracle_get_entry(const apr_dbd_row_t *row, int n) { ub4 len = 0; ub1 csform = 0; ub2 csid = 0; apr_size_t buflen = 0; char *buf = NULL; define_arg *val = &row->res->statement->out[n]; apr_dbd_t *sql = row->res->handle; int_errorcode; if ((n < 0) || (n >= row->res->statement->nout) || (val->ind == -1)) { return NULL; } switch (val->type) { case SQLT_BLOB: case SQLT_CLOB: sql->status = OCILobGetLength(sql->svc, sql->err, val->buf.lobval, &len); switch (sql->status) { case OCI_SUCCESS: case OCI_SUCCESS_WITH_INFO: if (len == 0) { buf = ""; } break; case OCI_ERROR: #ifdef DEBUG OCIErrorGet(sql->err, 1, NULL, &errorcode, sql->buf, sizeof(sql->buf), OCI_HTYPE_ERROR); printf("Finding LOB length: %s\n", sql->buf); break; #endif default: break; } if (len == 0) { break; } if (val->type == APR_DBD_TYPE_CLOB) { #if 1 /* Is this necessary, or can it be defaulted? */ sql->status = OCILobCharSetForm(dbd_oracle_env, sql->err, val->buf.lobval, &csform); if (sql->status == OCI_SUCCESS) { sql->status = OCILobCharSetId(dbd_oracle_env, sql->err, val->buf.lobval, &csid); } switch (sql->status) { case OCI_SUCCESS: case OCI_SUCCESS_WITH_INFO: buflen = (len+1) * 4; /* ugh, wasteful UCS-4 handling */ /* zeroise all - where the string ends depends on charset */ buf = apr_pcalloc(row->pool, buflen); break; #ifdef DEBUG case OCI_ERROR: OCIErrorGet(sql->err, 1, NULL, &errorcode, sql->buf, sizeof(sql->buf), OCI_HTYPE_ERROR); printf("Reading LOB character set: %s\n", sql->buf); break; /*** XXX?? ***/ #endif default: break; /*** XXX?? ***/ } #else /* ignore charset */ buflen = (len+1) * 4; /* ugh, wasteful UCS-4 handling */ /* zeroise all - where the string ends depends on charset */ buf = apr_pcalloc(row->pool, buflen); #endif } else { /* BUG: this'll only work if the BLOB looks like a string */ buflen = len; buf = apr_palloc(row->pool, buflen+1); buf[buflen] = 0; } if (!buf) { break; } sql->status = OCILobRead(sql->svc, sql->err, val->buf.lobval, &len, 1, (dvoid*) buf, buflen, NULL, NULL, csid, csform); switch (sql->status) { case OCI_SUCCESS: case OCI_SUCCESS_WITH_INFO: break; #ifdef DEBUG case OCI_ERROR: OCIErrorGet(sql->err, 1, NULL, &errorcode, sql->buf, sizeof(sql->buf), OCI_HTYPE_ERROR); printf("Reading LOB: %s\n", sql->buf); buf = NULL; /*** XXX?? ***/ break; #endif default: buf = NULL; /*** XXX?? ***/ break; } break; case SQLT_LNG: case SQLT_LBI: /* raw is struct { ub4 len; char *buf; } */ len = *(ub4*) val->buf.raw; buf = apr_pstrndup(row->pool, val->buf.sval + sizeof(ub4), len); break; default: buf = apr_pstrndup(row->pool, val->buf.sval, val->len); break; } return (const char*) buf; } /* XXX Should this use Oracle proper API instead of calling get_entry()? */ static apr_status_t dbd_oracle_datum_get(const apr_dbd_row_t *row, int n, apr_dbd_type_e type, void *data) { define_arg *val = &row->res->statement->out[n]; const char *entry; if ((n < 0) || (n >= row->res->statement->nout)) { return APR_EGENERAL; } if(val->ind == -1) { return APR_ENOENT; } switch (type) { case APR_DBD_TYPE_TINY: entry = dbd_oracle_get_entry(row, n); if (entry == NULL) { return APR_ENOENT; } *(char*)data = atoi(entry); break; case APR_DBD_TYPE_UTINY: entry = dbd_oracle_get_entry(row, n); if (entry == NULL) { return APR_ENOENT; } *(unsigned char*)data = atoi(entry); break; case APR_DBD_TYPE_SHORT: entry = dbd_oracle_get_entry(row, n); if (entry == NULL) { return APR_ENOENT; } *(short*)data = atoi(entry); break; case APR_DBD_TYPE_USHORT: entry = dbd_oracle_get_entry(row, n); if (entry == NULL) { return APR_ENOENT; } *(unsigned short*)data = atoi(entry); break; case APR_DBD_TYPE_INT: entry = dbd_oracle_get_entry(row, n); if (entry == NULL) { return APR_ENOENT; } *(int*)data = atoi(entry); break; case APR_DBD_TYPE_UINT: entry = dbd_oracle_get_entry(row, n); if (entry == NULL) { return APR_ENOENT; } *(unsigned int*)data = atoi(entry); break; case APR_DBD_TYPE_LONG: entry = dbd_oracle_get_entry(row, n); if (entry == NULL) { return APR_ENOENT; } *(long*)data = atol(entry); break; case APR_DBD_TYPE_ULONG: entry = dbd_oracle_get_entry(row, n); if (entry == NULL) { return APR_ENOENT; } *(unsigned long*)data = atol(entry); break; case APR_DBD_TYPE_LONGLONG: entry = dbd_oracle_get_entry(row, n); if (entry == NULL) { return APR_ENOENT; } *(apr_int64_t*)data = apr_atoi64(entry); break; case APR_DBD_TYPE_ULONGLONG: entry = dbd_oracle_get_entry(row, n); if (entry == NULL) { return APR_ENOENT; } *(apr_uint64_t*)data = apr_atoi64(entry); break; case APR_DBD_TYPE_FLOAT: entry = dbd_oracle_get_entry(row, n); if (entry == NULL) { return APR_ENOENT; } *(float*)data = (float)atof(entry); break; case APR_DBD_TYPE_DOUBLE: entry = dbd_oracle_get_entry(row, n); if (entry == NULL) { return APR_ENOENT; } *(double*)data = atof(entry); break; case APR_DBD_TYPE_STRING: case APR_DBD_TYPE_TEXT: case APR_DBD_TYPE_TIME: case APR_DBD_TYPE_DATE: case APR_DBD_TYPE_DATETIME: case APR_DBD_TYPE_TIMESTAMP: case APR_DBD_TYPE_ZTIMESTAMP: entry = dbd_oracle_get_entry(row, n); if (entry == NULL) { return APR_ENOENT; } *(char**)data = (char*)entry; break; case APR_DBD_TYPE_BLOB: case APR_DBD_TYPE_CLOB: { apr_bucket *e; apr_bucket_brigade *b = (apr_bucket_brigade*)data; apr_dbd_t *sql = row->res->handle; ub4 len = 0; switch (val->type) { case SQLT_BLOB: case SQLT_CLOB: sql->status = OCILobGetLength(sql->svc, sql->err, val->buf.lobval, &len); switch(sql->status) { case OCI_SUCCESS: case OCI_SUCCESS_WITH_INFO: if (len == 0) { e = apr_bucket_eos_create(b->bucket_alloc); } else { e = apr_bucket_lob_create(row, n, 0, len, row->pool, b->bucket_alloc); } break; default: return APR_ENOENT; } break; default: entry = dbd_oracle_get_entry(row, n); if (entry == NULL) { return APR_ENOENT; } e = apr_bucket_pool_create(entry, strlen(entry), row->pool, b->bucket_alloc); break; } APR_BRIGADE_INSERT_TAIL(b, e); } break; case APR_DBD_TYPE_NULL: *(void**)data = NULL; break; default: return APR_EGENERAL; } return APR_SUCCESS; } static apr_status_t dbd_oracle_close(apr_dbd_t *handle) { /* FIXME: none of the oracle docs/examples say anything about * closing/releasing handles. Which seems unlikely ... */ /* OK, let's grab from cdemo again. * cdemo81 does nothing; cdemo82 does OCIHandleFree on the handles */ switch (OCISessionEnd(handle->svc, handle->err, handle->auth, (ub4)OCI_DEFAULT)) { default: break; } switch (OCIServerDetach(handle->svr, handle->err, (ub4) OCI_DEFAULT )) { default: break; } /* does OCISessionEnd imply this? */ switch (OCIHandleFree((dvoid *) handle->auth, (ub4) OCI_HTYPE_SESSION)) { default: break; } switch (OCIHandleFree((dvoid *) handle->svr, (ub4) OCI_HTYPE_SERVER)) { default: break; } switch (OCIHandleFree((dvoid *) handle->svc, (ub4) OCI_HTYPE_SVCCTX)) { default: break; } switch (OCIHandleFree((dvoid *) handle->err, (ub4) OCI_HTYPE_ERROR)) { default: break; } return APR_SUCCESS; } static apr_status_t dbd_oracle_check_conn(apr_pool_t *pool, apr_dbd_t *sql) { apr_dbd_results_t *res = NULL; apr_dbd_row_t *row = NULL; if(dbd_oracle_pselect(pool, sql, &res, sql->check_conn_stmt, 0, NULL) != 0) { return APR_EGENERAL; } if(dbd_oracle_get_row(pool, res, &row, -1) != 0) { return APR_EGENERAL; } if(dbd_oracle_get_row(pool, res, &row, -1) != -1) { return APR_EGENERAL; } return APR_SUCCESS; } static int dbd_oracle_select_db(apr_pool_t *pool, apr_dbd_t *handle, const char *name) { /* FIXME: need to find this in the docs */ return APR_ENOTIMPL; } static void *dbd_oracle_native(apr_dbd_t *handle) { /* FIXME: can we do anything better? Oracle doesn't seem to have * a concept of a handle in the sense we use it. */ return dbd_oracle_env; } static int dbd_oracle_num_cols(apr_dbd_results_t* res) { return res->statement->nout; } static int dbd_oracle_num_tuples(apr_dbd_results_t* res) { if (!res->seek) { return -1; } if (res->nrows >= 0) { return res->nrows; } res->handle->status = OCIAttrGet(res->statement->stmt, OCI_HTYPE_STMT, &res->nrows, 0, OCI_ATTR_ROW_COUNT, res->handle->err); return res->nrows; } APU_MODULE_DECLARE_DATA const apr_dbd_driver_t apr_dbd_oracle_driver = { "oracle", dbd_oracle_init, dbd_oracle_native, dbd_oracle_open, dbd_oracle_check_conn, dbd_oracle_close, dbd_oracle_select_db, dbd_oracle_start_transaction, dbd_oracle_end_transaction, dbd_oracle_query, dbd_oracle_select, dbd_oracle_num_cols, dbd_oracle_num_tuples, dbd_oracle_get_row, dbd_oracle_get_entry, dbd_oracle_error, dbd_oracle_escape, dbd_oracle_prepare, dbd_oracle_pvquery, dbd_oracle_pvselect, dbd_oracle_pquery, dbd_oracle_pselect, dbd_oracle_get_name, dbd_oracle_transaction_mode_get, dbd_oracle_transaction_mode_set, ":apr%d", dbd_oracle_pvbquery, dbd_oracle_pvbselect, dbd_oracle_pbquery, dbd_oracle_pbselect, dbd_oracle_datum_get }; #endif
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