XCache is a fast, stable PHP opcode cacher that has been proven and is now running on production servers under high load. https://xcache.lighttpd.net/
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#include "xc_disassembler.h"
#include "xcache.h"
#include "xcache/xc_ini.h"
#include "xcache/xc_utils.h"
#include "xcache/xc_sandbox.h"
#include "xcache/xc_compatibility.h"
#include "xc_processor.h"
#include "ext/standard/info.h"
static void xc_dasm(zval *output, zend_op_array *op_array TSRMLS_DC) /* {{{ */
{
const Bucket *b;
zval *zv, *list;
xc_compile_result_t cr;
int bufsize = 2;
char *buf;
xc_dasm_t dasm;
xc_compile_result_init_cur(&cr, op_array TSRMLS_CC);
xc_apply_op_array(&cr, (apply_func_t) xc_undo_pass_two TSRMLS_CC);
xc_apply_op_array(&cr, (apply_func_t) xc_fix_opcode TSRMLS_CC);
/* go */
array_init(output);
ALLOC_INIT_ZVAL(zv);
array_init(zv);
xc_dasm_zend_op_array(&dasm, zv, op_array TSRMLS_CC);
add_assoc_zval_ex(output, XCACHE_STRS("op_array"), zv);
buf = emalloc(bufsize);
ALLOC_INIT_ZVAL(list);
array_init(list);
for (b = xc_sandbox_user_function_begin(TSRMLS_C); b; b = b->pListNext) {
int keysize, keyLength;
ALLOC_INIT_ZVAL(zv);
array_init(zv);
xc_dasm_zend_function(&dasm, zv, b->pData TSRMLS_CC);
keysize = BUCKET_KEY_SIZE(b) + 2;
if (keysize > bufsize) {
do {
bufsize *= 2;
} while (keysize > bufsize);
buf = erealloc(buf, bufsize);
}
memcpy(buf, BUCKET_KEY_S(b), keysize);
buf[keysize - 2] = buf[keysize - 1] = ""[0];
keyLength = b->nKeyLength;
#ifdef IS_UNICODE
if (BUCKET_KEY_TYPE(b) == IS_UNICODE) {
if (buf[0] == ""[0] && buf[1] == ""[0]) {
keyLength ++;
}
} else
#endif
{
if (buf[0] == ""[0]) {
keyLength ++;
}
}
add_u_assoc_zval_ex(list, BUCKET_KEY_TYPE(b), ZSTR(buf), keyLength, zv);
}
add_assoc_zval_ex(output, XCACHE_STRS("function_table"), list);
ALLOC_INIT_ZVAL(list);
array_init(list);
for (b = xc_sandbox_user_class_begin(TSRMLS_C); b; b = b->pListNext) {
int keysize, keyLength;
ALLOC_INIT_ZVAL(zv);
array_init(zv);
xc_dasm_zend_class_entry(&dasm, zv, CestToCePtr(*(xc_cest_t *)b->pData) TSRMLS_CC);
keysize = BUCKET_KEY_SIZE(b) + 2;
if (keysize > bufsize) {
do {
bufsize *= 2;
} while (keysize > bufsize);
buf = erealloc(buf, bufsize);
}
memcpy(buf, BUCKET_KEY_S(b), keysize);
buf[keysize - 2] = buf[keysize - 1] = ""[0];
keyLength = b->nKeyLength;
#ifdef IS_UNICODE
if (BUCKET_KEY_TYPE(b) == IS_UNICODE) {
if (buf[0] == ""[0] && buf[1] == ""[0]) {
keyLength ++;
}
} else
#endif
{
if (buf[0] == ""[0]) {
keyLength ++;
}
}
add_u_assoc_zval_ex(list, BUCKET_KEY_TYPE(b), ZSTR(buf), keyLength, zv);
}
efree(buf);
add_assoc_zval_ex(output, XCACHE_STRS("class_table"), list);
/*xc_apply_op_array(&cr, (apply_func_t) xc_redo_pass_two TSRMLS_CC);*/
xc_compile_result_free(&cr);
}
/* }}} */
typedef struct xc_dasm_sandboxed_t { /* {{{ */
enum Type {
xc_dasm_file_t
, xc_dasm_string_t
} type;
union {
zval *zfilename;
struct {
zval *source;
char *eval_name;
} compile_string;
} input;
zval *output;
} xc_dasm_sandboxed_t; /* }}} */
zend_op_array *xc_dasm_sandboxed(void *data TSRMLS_DC) /* {{{ */
{
zend_bool catched = 0;
zend_op_array *op_array = NULL;
xc_dasm_sandboxed_t *sandboxed_dasm = (xc_dasm_sandboxed_t *) data;
zend_try {
if (sandboxed_dasm->type == xc_dasm_file_t) {
op_array = compile_filename(ZEND_REQUIRE, sandboxed_dasm->input.zfilename TSRMLS_CC);
}
else {
op_array = compile_string(sandboxed_dasm->input.compile_string.source, sandboxed_dasm->input.compile_string.eval_name TSRMLS_CC);
}
} zend_catch {
catched = 1;
} zend_end_try();
if (catched || !op_array) {
#define return_value sandboxed_dasm->output
RETVAL_FALSE;
#undef return_value
return NULL;
}
xc_dasm(sandboxed_dasm->output, op_array TSRMLS_CC);
/* free */
#ifdef ZEND_ENGINE_2
destroy_op_array(op_array TSRMLS_CC);
#else
destroy_op_array(op_array);
#endif
efree(op_array);
return NULL;
} /* }}} */
void xc_dasm_string(zval *output, zval *source TSRMLS_DC) /* {{{ */
{
xc_dasm_sandboxed_t sandboxed_dasm;
char *eval_name = zend_make_compiled_string_description("runtime-created function" TSRMLS_CC);
sandboxed_dasm.output = output;
sandboxed_dasm.type = xc_dasm_string_t;
sandboxed_dasm.input.compile_string.source = source;
sandboxed_dasm.input.compile_string.eval_name = eval_name;
xc_sandbox(&xc_dasm_sandboxed, (void *) &sandboxed_dasm, eval_name TSRMLS_CC);
efree(eval_name);
}
/* }}} */
void xc_dasm_file(zval *output, const char *filename TSRMLS_DC) /* {{{ */
{
zval *zfilename;
xc_dasm_sandboxed_t sandboxed_dasm;
MAKE_STD_ZVAL(zfilename);
zfilename->value.str.val = estrdup(filename);
zfilename->value.str.len = strlen(filename);
zfilename->type = IS_STRING;
sandboxed_dasm.output = output;
sandboxed_dasm.type = xc_dasm_file_t;
sandboxed_dasm.input.zfilename = zfilename;
xc_sandbox(&xc_dasm_sandboxed, (void *) &sandboxed_dasm, zfilename->value.str.val TSRMLS_CC);
zval_dtor(zfilename);
FREE_ZVAL(zfilename);
}
/* }}} */
/* {{{ proto array xcache_dasm_file(string filename)
Disassemble file into opcode array by filename */
PHP_FUNCTION(xcache_dasm_file)
{
char *filename;
int filename_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &filename, &filename_len) == FAILURE) {
return;
}
if (!filename_len) RETURN_FALSE;
xc_dasm_file(return_value, filename TSRMLS_CC);
}
/* }}} */
/* {{{ proto array xcache_dasm_string(string code)
Disassemble php code into opcode array */
PHP_FUNCTION(xcache_dasm_string)
{
zval *code;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &code) == FAILURE) {
return;
}
xc_dasm_string(return_value, code TSRMLS_CC);
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION(xcache_disassembler) */
static PHP_MINFO_FUNCTION(xcache_disassembler)
{
php_info_print_table_start();
php_info_print_table_row(2, "XCache Disassembler Module", "enabled");
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
}
/* }}} */
static zend_function_entry xcache_disassembler_functions[] = /* {{{ */
{
PHP_FE(xcache_dasm_file, NULL)
PHP_FE(xcache_dasm_string, NULL)
PHP_FE_END
};
/* }}} */
static zend_module_entry xcache_disassembler_module_entry = { /* {{{ */
STANDARD_MODULE_HEADER,
XCACHE_NAME " Disassembler",
xcache_disassembler_functions,
NULL,
NULL,
NULL,
NULL,
PHP_MINFO(xcache_disassembler),
XCACHE_VERSION,
#ifdef PHP_GINIT
NO_MODULE_GLOBALS,
#endif
#ifdef ZEND_ENGINE_2
NULL,
#else
NULL,
NULL,
#endif
STANDARD_MODULE_PROPERTIES_EX
};
/* }}} */
int xc_disassembler_startup_module() /* {{{ */
{
return zend_startup_module(&xcache_disassembler_module_entry);
}
/* }}} */