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-rw-r--r--ext/interbase/php_ibase_udf.c405
1 files changed, 0 insertions, 405 deletions
diff --git a/ext/interbase/php_ibase_udf.c b/ext/interbase/php_ibase_udf.c
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index 4c9796213c..0000000000
--- a/ext/interbase/php_ibase_udf.c
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@@ -1,405 +0,0 @@
-/*
- +----------------------------------------------------------------------+
- | PHP Version 5 |
- +----------------------------------------------------------------------+
- | Copyright (c) 1997-2005 The PHP Group |
- +----------------------------------------------------------------------+
- | This source file is subject to version 3.0 of the PHP license, |
- | that is bundled with this package in the file LICENSE, and is |
- | available through the world-wide-web at the following url: |
- | http://www.php.net/license/3_0.txt. |
- | If you did not receive a copy of the PHP license and are unable to |
- | obtain it through the world-wide-web, please send a note to |
- | license@php.net so we can mail you a copy immediately. |
- +----------------------------------------------------------------------+
- | Author: Ard Biesheuvel <a.k.biesheuvel@ewi.tudelft.nl> |
- +----------------------------------------------------------------------+
- */
-
-/* $Id$ */
-
-/**
-* This UDF library adds the ability to call PHP functions from SQL
-* statements. Because of SQL's strong typing, you will have to declare
-* an external function for every combination { output type, #args } that
-* your application requires.
-*
-* Declare the functions like this:
-*
-* DECLARE EXTERNAL FUNCTION CALL_PHP1
-* CSTRING(xx),
-* <return type> BY DESCRIPTOR,
-* INTEGER BY DESCRIPTOR
-* RETURNS PARAMETER 2
-* ENTRY_POINT 'udf_call_php1' MODULE_NAME 'php_ibase_udf'
-*
-* DECLARE EXTERNAL FUNCTION CALL_PHP2
-* CSTRING(xx),
-* <return type> BY DESCRIPTOR,
-* INTEGER BY DESCRIPTOR,
-* INTEGER BY DESCRIPTOR
-* RETURNS PARAMETER 2
-* ENTRY_POINT 'udf_call_php2' MODULE_NAME 'php_ibase_udf'
-*
-* ... and so on. [for up to 8 input arguments]
-*
-* The first input parameter contains the name of the PHP function you want
-* to call. The second argument is the result. (omit this argument when calling
-* the function) The return type of the function is the declared type of the
-* result. The value returned from the PHP function being called will
-* automatically be converted if necessary.
-* The arguments should have their types declared as well, but you're free
-* to pass arguments of other types instead. They will be converted to the
-* best matching PHP type before being passed to the PHP function.
-*
-* The declared functions can be called from SQL like:
-*
-* SELECT * FROM <table> WHERE CALL_PHP1('soundex',<field>) NOT LIKE ?
-* or
-* UPDATE <table> SET <field> = CALL_PHP1('ucwords',<field>)
-*
-* Additionally, there's a function 'exec_php' which allows the contents
-* of text BLOB fields to be parsed and executed by PHP. This is most useful
-* for declaring functions that can then be called with CALL_PHPx.
-*
-* DECLARE EXTERNAL FUNCTION EXEC_PHP
-* BLOB,
-* INTEGER BY DESCRIPTOR,
-* SMALLINT
-* RETURNS PARAMETER 2
-* ENTRY_POINT 'exec_php' MODULE_NAME 'php_ibase_udf'
-*
-* The function will return 1 if execution succeeded and 0 if an error
-* occurred. The result that is returned from the executed PHP code is
-* ignored. You can pass a non-zero value as second argument to force
-* the embedded PHP engine to re-initialise.
-*
-* There are several ways to build this library, depending on which way the
-* database is accessed. If you're using the classic server on a local
-* connection, you should compile the library like this:
-*
-* gcc -shared `php-config --includes` `php-config --ldflags` \
-* `php-config --libs` -o php_ibase_udf.so php_ibase_udf.c
-*
-* If you connect to the classic server by TCP/IP, you should build the
-* PHP embedded static library and link against that.
-*
-* gcc -shared `php-config --includes` `php-config --ldflags` \
-* `php-config --libs` -o php_ibase_udf.so php_ibase_udf.c \
-* /usr/lib/libphp5.a
-*
-* If you use the super server, you should also link against the embedded
-* library, but be sure to enable thread safety, as the super server is
-* multi-threaded. After building, copy the resulting file to the folder
-* where your database expects to find its UDFs.
-*/
-
-#include "zend.h"
-#include "zend_API.h"
-
-#include "php.h"
-#include "php_ini.h"
-
-#include "ibase.h"
-
-#define min(a,b) ((a)<(b)?(a):(b))
-
-#ifdef PHP_WIN32
-#define LL_LIT(lit) lit ## I64
-#else
-#define LL_LIT(lit) lit ## ll
-#endif
-
-#ifdef ZTS
-# include <pthread.h>
-
-static void ***tsrm_ls;
-pthread_mutex_t mtx_res = PTHREAD_MUTEX_INITIALIZER;
-
-#define LOCK() do { pthread_mutex_lock(&mtx_res); } while (0)
-#define UNLOCK() do { pthread_mutex_unlock(&mtx_res); } while (0)
-#else
-#define LOCK()
-#define UNLOCK()
-#endif
-
-#ifdef PHP_EMBED
-# include "php_main.h"
-# include "sapi/embed/php_embed.h"
-
-static void __attribute__((constructor)) init()
-{
- php_embed_init(0, NULL PTSRMLS_CC);
-}
-
-static void __attribute__((destructor)) fini()
-{
- php_embed_shutdown(TSRMLS_C);
-}
-
-#endif
-
-/**
-* Gets the contents of the BLOB b and offers it to Zend for parsing/execution
-*/
-void exec_php(BLOBCALLBACK b, PARAMDSC *res, ISC_SHORT *init)
-{
- int result, remaining = b->blob_total_length, i = 0;
- char *code = malloc(remaining+1);
- ISC_USHORT read;
-
- for (code[remaining] = '\0'; remaining > 0; remaining -= read)
- b->blob_get_segment(b->blob_handle, &code[i++<<16],min(0x10000,remaining), &read);
-
- LOCK();
-
- switch (init && *init) {
-
- default:
-#ifdef PHP_EMBED
- php_request_shutdown(NULL);
- if (FAILURE == (result = php_request_startup(TSRMLS_C))) {
- break;
- }
- case 0:
-#endif
- /* feed it to the parser */
- zend_first_try {
- result = zend_eval_string(code, NULL, "Firebird Embedded PHP engine" TSRMLS_CC);
- } zend_end_try();
- }
-
- UNLOCK();
-
- free(code);
-
- res->dsc_dtype = dtype_long;
- *(ISC_LONG*)res->dsc_address = (result == SUCCESS);
-}
-
-static ISC_INT64 const scales[] = { 1, 10, 100, 1000, 10000, 100000, 1000000, 100000000, 1000000000,
- 1000000000, LL_LIT(10000000000),LL_LIT(100000000000),LL_LIT(10000000000000),LL_LIT(100000000000000),
- LL_LIT(1000000000000000),LL_LIT(1000000000000000),LL_LIT(1000000000000000000) };
-
-
-static void call_php(char *name, PARAMDSC *r, int argc, PARAMDSC **argv)
-{
- do {
- zval callback, args[4], *argp[4], return_value;
- PARAMVARY *res = (PARAMVARY*)r->dsc_address;
- int i;
-
- INIT_ZVAL(callback);
- ZVAL_STRING(&callback,name,0);
-
- /* check if the requested function exists */
- if (!zend_is_callable(&callback, 0, NULL)) {
- break;
- }
-
- /* create the argument array */
- for (i = 0; i < argc; ++i) {
-
- INIT_ZVAL(args[i]);
- argp[i] = &args[i];
-
- /* test arg for null */
- if (argv[i]->dsc_flags & DSC_null) {
- ZVAL_NULL(argp[i]);
- continue;
- }
-
- switch (argv[i]->dsc_dtype) {
- ISC_INT64 l;
- struct tm t;
- char const *fmt;
- char d[64];
-
- case dtype_cstring:
- ZVAL_STRING(argp[i], (char*)argv[i]->dsc_address,0);
- break;
-
- case dtype_text:
- ZVAL_STRINGL(argp[i], (char*)argv[i]->dsc_address, argv[i]->dsc_length,0);
- break;
-
- case dtype_varying:
- ZVAL_STRINGL(argp[i], ((PARAMVARY*)argv[i]->dsc_address)->vary_string,
- ((PARAMVARY*)argv[i]->dsc_address)->vary_length,0);
- break;
-
- case dtype_short:
- if (argv[i]->dsc_scale == 0) {
- ZVAL_LONG(argp[i], *(short*)argv[i]->dsc_address);
- } else {
- ZVAL_DOUBLE(argp[i],
- ((double)*(short*)argv[i]->dsc_address)/scales[-argv[i]->dsc_scale]);
- }
- break;
-
- case dtype_long:
- if (argv[i]->dsc_scale == 0) {
- ZVAL_LONG(argp[i], *(ISC_LONG*)argv[i]->dsc_address);
- } else {
- ZVAL_DOUBLE(argp[i],
- ((double)*(ISC_LONG*)argv[i]->dsc_address)/scales[-argv[i]->dsc_scale]);
- }
- break;
-
- case dtype_int64:
- l = *(ISC_INT64*)argv[i]->dsc_address;
-
- if (argv[i]->dsc_scale == 0 && l <= LONG_MAX && l >= LONG_MIN) {
- ZVAL_LONG(argp[i], (long)l);
- } else {
- ZVAL_DOUBLE(argp[i], ((double)l)/scales[-argv[i]->dsc_scale]);
- }
- break;
-
- case dtype_real:
- ZVAL_DOUBLE(argp[i], *(float*)argv[i]->dsc_address);
- break;
-
- case dtype_double:
- ZVAL_DOUBLE(argp[i], *(double*)argv[i]->dsc_address);
- break;
-
- case dtype_sql_date:
- isc_decode_sql_date((ISC_DATE*)argv[i]->dsc_address, &t);
- ZVAL_STRINGL(argp[i], d, strftime(d, sizeof(d), INI_STR("ibase.dateformat"), &t),1);
- break;
-
- case dtype_sql_time:
- isc_decode_sql_time((ISC_TIME*)argv[i]->dsc_address, &t);
- ZVAL_STRINGL(argp[i], d, strftime(d, sizeof(d), INI_STR("ibase.timeformat"), &t),1);
- break;
-
- case dtype_timestamp:
- isc_decode_timestamp((ISC_TIMESTAMP*)argv[i]->dsc_address, &t);
- ZVAL_STRINGL(argp[i], d, strftime(d, sizeof(d), INI_STR("ibase.timestampformat"), &t),1);
- break;
- }
- }
-
- LOCK();
-
- /* now call the function */
- if (FAILURE == call_user_function(EG(function_table), NULL,
- &callback, &return_value, argc, argp TSRMLS_CC)) {
- UNLOCK();
- break;
- }
-
- UNLOCK();
-
- for (i = 0; i < argc; ++i) {
- switch (argv[i]->dsc_dtype) {
- case dtype_sql_date:
- case dtype_sql_time:
- case dtype_timestamp:
- zval_dtor(argp[i]);
-
- }
- }
-
- /* return whatever type we got back from the callback: let DB handle conversion */
- switch (Z_TYPE(return_value)) {
-
- case IS_LONG:
- r->dsc_dtype = dtype_long;
- *(long*)r->dsc_address = Z_LVAL(return_value);
- r->dsc_length = sizeof(long);
- break;
-
- case IS_DOUBLE:
- r->dsc_dtype = dtype_double;
- *(double*)r->dsc_address = Z_DVAL(return_value);
- r->dsc_length = sizeof(double);
- break;
-
- case IS_NULL:
- r->dsc_flags |= DSC_null;
- break;
-
- default:
- convert_to_string(&return_value);
-
- case IS_STRING:
- r->dsc_dtype = dtype_varying;
- memcpy(res->vary_string, Z_STRVAL(return_value),
- (res->vary_length = min(r->dsc_length-2,Z_STRLEN(return_value))));
- r->dsc_length = res->vary_length+2;
- break;
- }
-
- zval_dtor(&return_value);
-
- return;
-
- } while (0);
-
- /**
- * If we end up here, we should report an error back to the DB engine, but
- * that's not possible. We can however report it back to PHP.
- */
- LOCK();
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error calling function '%s' from database", name);
- UNLOCK();
-}
-
-
-/* Entry points for the DB engine */
-
-void udf_call_php1(char *name, PARAMDSC *r, PARAMDSC *arg1)
-{
- PARAMDSC *args[1] = { arg1 };
- call_php(name, r, 1, args);
-}
-
-void udf_call_php2(char *name, PARAMDSC *r, PARAMDSC *arg1, PARAMDSC *arg2)
-{
- PARAMDSC *args[2] = { arg1, arg2 };
- call_php(name, r, 2, args);
-}
-
-void udf_call_php3(char *name, PARAMDSC *r, PARAMDSC *arg1, PARAMDSC *arg2, PARAMDSC *arg3)
-{
- PARAMDSC *args[3] = { arg1, arg2, arg3 };
- call_php(name, r, 3, args);
-}
-
-void udf_call_php4(char *name, PARAMDSC *r, PARAMDSC *arg1, PARAMDSC *arg2, PARAMDSC *arg3,
- PARAMDSC *arg4)
-{
- PARAMDSC *args[4] = { arg1, arg2, arg3, arg4 };
- call_php(name, r, 4, args);
-}
-
-void udf_call_php5(char *name, PARAMDSC *r, PARAMDSC *arg1, PARAMDSC *arg2, PARAMDSC *arg3,
- PARAMDSC *arg4, PARAMDSC *arg5)
-{
- PARAMDSC *args[5] = { arg1, arg2, arg3, arg4, arg5 };
- call_php(name, r, 5, args);
-}
-
-void udf_call_php6(char *name, PARAMDSC *r, PARAMDSC *arg1, PARAMDSC *arg2, PARAMDSC *arg3,
- PARAMDSC *arg4, PARAMDSC *arg5, PARAMDSC *arg6)
-{
- PARAMDSC *args[6] = { arg1, arg2, arg3, arg4, arg5, arg6 };
- call_php(name, r, 6, args);
-}
-
-void udf_call_php7(char *name, PARAMDSC *r, PARAMDSC *arg1, PARAMDSC *arg2, PARAMDSC *arg3,
- PARAMDSC *arg4, PARAMDSC *arg5, PARAMDSC *arg6, PARAMDSC *arg7)
-{
- PARAMDSC *args[7] = { arg1, arg2, arg3, arg4, arg5, arg6, arg7 };
- call_php(name, r, 7, args);
-}
-
-void udf_call_php8(char *name, PARAMDSC *r, PARAMDSC *arg1, PARAMDSC *arg2, PARAMDSC *arg3,
- PARAMDSC *arg4, PARAMDSC *arg5, PARAMDSC *arg6, PARAMDSC *arg7, PARAMDSC *arg8)
-{
- PARAMDSC *args[8] = { arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8 };
- call_php(name, r, 8, args);
-}
-
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