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blitz.c
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blitz.c
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/*
+----------------------------------------------------------------------+
| Blitz Templates |
+----------------------------------------------------------------------+
| Downloads and online documentation: |
| http://alexeyrybak.com/blitz/ |
| http://sourceforge.net/projects/blitz-templates/ |
| |
| Author: |
| Alexey Rybak [fisher] <alexey.rybak at gmail dot com> |
| Bugfixes and patches: |
| Antony Dovgal [tony2001] <tony at daylessday dot org> |
| Konstantin Baryshnikov [fixxxer] <konstantin at symbi dot info> |
| Mailing list: |
| blitz-php at googlegroups dot com |
+----------------------------------------------------------------------+
*/
#define BLITZ_DEBUG 0
#define BLITZ_VERSION_STRING "0.8.5"
#ifndef PHP_WIN32
#include <sys/mman.h>
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#if PHP_API_VERSION < 20100412
#include "safe_mode.h"
#endif
#include "php_globals.h"
#include "php_ini.h"
#include "ext/standard/php_standard.h"
#include "ext/standard/info.h"
#include "ext/standard/html.h"
#include "Zend/zend_exceptions.h"
#include <fcntl.h>
#ifdef PHP_WIN32
#include "win32/time.h"
#else
#include <sys/time.h>
#endif
#if PHP_API_VERSION >= 20041225
#include "ext/date/php_date.h"
#endif
#if PHP_API_VERSION >= 20030307
#define OnUpdateLongLegacy OnUpdateLong
#else
#define OnUpdateLongLegacy OnUpdateInt
#endif
#include "SAPI.h"
#include "php_blitz.h"
ZEND_DECLARE_MODULE_GLOBALS(blitz)
/* some declarations */
static void blitz_error (blitz_tpl *tpl TSRMLS_DC, unsigned int level, char *format, ...);
static int blitz_exec_template(blitz_tpl *tpl, zval *id, char **result, unsigned long *result_len TSRMLS_DC);
static int blitz_exec_nodes(blitz_tpl *tpl, blitz_node *first, zval *id,
char **result, unsigned long *result_len, unsigned long *result_alloc_len,
unsigned long parent_begin, unsigned long parent_end, zval *parent_ctx_data TSRMLS_DC);
static inline int blitz_analize (blitz_tpl *tpl TSRMLS_DC);
static inline void blitz_remove_spaces_around_context_tags(blitz_tpl *tpl TSRMLS_DC);
static inline unsigned int blitz_extract_var(blitz_tpl *tpl, char *name, unsigned long len, unsigned char is_path, zval *params, long *l, zval ***z TSRMLS_DC);
static int le_blitz;
/* internal classes: Blitz */
static zend_class_entry blitz_class_entry;
#ifdef COMPILE_DL_BLITZ
ZEND_GET_MODULE(blitz)
#endif
/* {{{ macros */
#define REALLOC_POS_IF_EXCEEDS \
if (p >= alloc_size) { \
alloc_size = alloc_size << 1; \
*pos = erealloc(*pos, alloc_size * sizeof(tag_pos)); \
}
#define INIT_CALL_ARGS \
node->args = ecalloc(BLITZ_CALL_ALLOC_ARG_INIT, sizeof(call_arg)); \
node->n_args = 0; \
n_arg_alloc = BLITZ_CALL_ALLOC_ARG_INIT;
#define REALLOC_ARG_IF_EXCEEDS \
if (arg_id >= n_arg_alloc) { \
n_arg_alloc = n_arg_alloc << 1; \
node->args = erealloc(node->args,n_arg_alloc*sizeof(call_arg)); \
}
#define ADD_CALL_ARGS(buf, i_len, i_type) \
REALLOC_ARG_IF_EXCEEDS; \
i_arg = node->args + arg_id; \
if (i_len) { \
i_arg->name = estrndup((char *)(buf),(i_len)); \
i_arg->len = (i_len); \
} else { \
i_arg->name = ""; \
i_arg->len = 0; \
} \
i_arg->type = (i_type); \
++arg_id; \
node->n_args = arg_id;
/* }}} */
static ZEND_INI_MH(OnUpdateVarPrefixHandler) /* {{{ */
{
char *p;
#ifndef ZTS
char *base = (char *) mh_arg2;
#else
char *base;
base = (char *) ts_resource(*((int *) mh_arg2));
#endif
p = (char *) (base+(size_t) mh_arg1);
if (new_value && new_value_length == 0) {
*p = '\x0';
} else {
if (!new_value || new_value_length != 1) {
blitz_error(NULL TSRMLS_CC, E_WARNING, "failed to set blitz.var_prefix (only one character is allowed, like $ or %%)");
return FAILURE;
}
*p = new_value[0];
}
return SUCCESS;
}
/* }}} */
/* {{{ ini options */
PHP_INI_BEGIN()
STD_PHP_INI_ENTRY("blitz.throw_exceptions", "0", PHP_INI_ALL,
OnUpdateBool, throw_exceptions, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.var_prefix", BLITZ_TAG_VAR_PREFIX_S, PHP_INI_ALL,
OnUpdateVarPrefixHandler, var_prefix, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.tag_open", BLITZ_TAG_OPEN, PHP_INI_ALL,
OnUpdateString, tag_open, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.tag_close", BLITZ_TAG_CLOSE, PHP_INI_ALL,
OnUpdateString, tag_close, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.tag_open_alt", BLITZ_TAG_OPEN_ALT, PHP_INI_ALL,
OnUpdateString, tag_open_alt, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.tag_close_alt", BLITZ_TAG_CLOSE_ALT, PHP_INI_ALL,
OnUpdateString, tag_close_alt, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.comment_open", BLITZ_TAG_COMMENT_OPEN, PHP_INI_ALL,
OnUpdateString, tag_comment_open, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.comment_close", BLITZ_TAG_COMMENT_CLOSE, PHP_INI_ALL,
OnUpdateString, tag_comment_close, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.enable_alternative_tags", "1", PHP_INI_ALL,
OnUpdateBool, enable_alternative_tags, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.enable_comments", "0", PHP_INI_ALL,
OnUpdateBool, enable_comments, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.path", "", PHP_INI_ALL,
OnUpdateString, path, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.remove_spaces_around_context_tags", "1", PHP_INI_ALL,
OnUpdateBool, remove_spaces_around_context_tags, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.warn_context_duplicates", "0", PHP_INI_ALL,
OnUpdateBool, warn_context_duplicates, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.check_recursion", "1", PHP_INI_ALL,
OnUpdateBool, check_recursion, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.scope_lookup_limit", "0", PHP_INI_ALL,
OnUpdateLongLegacy, scope_lookup_limit, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.lower_case_method_names", "1", PHP_INI_ALL,
OnUpdateBool, lower_case_method_names, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.enable_include", "1", PHP_INI_ALL,
OnUpdateBool, enable_include, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.enable_callbacks", "1", PHP_INI_ALL,
OnUpdateBool, enable_callbacks, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.enable_php_callbacks", "1", PHP_INI_ALL,
OnUpdateBool, enable_php_callbacks, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.php_callbacks_first", "1", PHP_INI_ALL,
OnUpdateBool, php_callbacks_first, zend_blitz_globals, blitz_globals)
STD_PHP_INI_ENTRY("blitz.auto_escape", "0", PHP_INI_ALL,
OnUpdateBool, auto_escape, zend_blitz_globals, blitz_globals)
PHP_INI_END()
/* }}} */
static void blitz_error (blitz_tpl *tpl TSRMLS_DC, unsigned int level, char *format, ...) { /* {{{ */
char *msg = NULL;
unsigned char free_msg = 0;
va_list arg;
va_start(arg, format);
if (tpl) {
if (tpl->error) {
efree(tpl->error);
}
vspprintf(&tpl->error, BLITZ_ERROR_MAX_LEN, format, arg);
msg = tpl->error;
} else {
vspprintf(&msg, BLITZ_ERROR_MAX_LEN, format, arg);
free_msg = 1;
}
va_end(arg);
php_error_docref(NULL TSRMLS_CC, level, "%s", msg);
if (BLITZ_G(throw_exceptions) && level == E_WARNING) {
zend_throw_exception_ex(zend_exception_get_default(TSRMLS_C), 0 TSRMLS_CC, "%s", msg);
}
if (free_msg) {
efree(msg);
}
}
/* }}} */
static inline unsigned int blitz_realloc_list (blitz_list *list, unsigned long new_size) { /* {{{ */
void *p = NULL;
unsigned long allocated = 0;
if (new_size < list->allocated)
return 1;
allocated = list->allocated << 1;
p = (void*)erealloc(list->first, list->item_size * allocated);
if (!p)
return 0;
list->first = p;
list->allocated = allocated;
list->end = list->first + list->item_size * list->size;
return 1;
}
/* }}} */
static inline unsigned int blitz_realloc_list_to_add (blitz_list *list) { /* {{{ */
if (list->size >= BLITZ_MAX_LIST_SIZE)
return 0;
return blitz_realloc_list(list, list->size + 1);
}
/* }}} */
static inline int blitz_read_with_stream(blitz_tpl *tpl TSRMLS_DC) /* {{{ */
{
char *filename = tpl->static_data.name;
php_stream *stream;
if (php_check_open_basedir(filename TSRMLS_CC)) {
return 0;
}
stream = php_stream_open_wrapper(filename, "rb", IGNORE_PATH|IGNORE_URL|IGNORE_URL_WIN|ENFORCE_SAFE_MODE|REPORT_ERRORS, NULL);
if (!stream) {
return 0;
}
tpl->static_data.body_len = php_stream_copy_to_mem(stream, &tpl->static_data.body, PHP_STREAM_COPY_ALL, 0);
php_stream_close(stream);
return 1;
}
/* }}} */
static inline int blitz_read_with_fread(blitz_tpl *tpl TSRMLS_DC) /* {{{ */
{
FILE *stream;
unsigned int get_len;
char *filename = tpl->static_data.name;
if (php_check_open_basedir(filename TSRMLS_CC)) {
return 0;
}
/* VCWD_FOPEN() fixes problems with relative paths in multithreaded environments */
if (!(stream = VCWD_FOPEN(filename, "rb"))) {
blitz_error(tpl TSRMLS_CC, E_WARNING, "unable to open file \"%s\"", filename);
return 0;
}
tpl->static_data.body = (char*)emalloc(BLITZ_INPUT_BUF_SIZE);
tpl->static_data.body_len = 0;
while ((get_len = fread(tpl->static_data.body + tpl->static_data.body_len, 1, BLITZ_INPUT_BUF_SIZE, stream)) > 0) {
tpl->static_data.body_len += get_len;
tpl->static_data.body = (char*)erealloc(tpl->static_data.body, tpl->static_data.body_len + BLITZ_INPUT_BUF_SIZE);
}
fclose(stream);
return 1;
}
/* }}} */
static blitz_tpl *blitz_init_tpl_base(HashTable *globals, zval *iterations, blitz_tpl *tpl_parent TSRMLS_DC) /* {{{ */
{
blitz_static_data *static_data = NULL;
blitz_tpl *tpl = ecalloc(1, sizeof(blitz_tpl));
static_data = & tpl->static_data;
static_data->body = NULL;
tpl->flags = 0;
static_data->n_nodes = 0;
static_data->nodes = NULL;
static_data->tag_open_len = strlen(BLITZ_G(tag_open));
static_data->tag_close_len = strlen(BLITZ_G(tag_close));
static_data->tag_open_alt_len = strlen(BLITZ_G(tag_open_alt));
static_data->tag_close_alt_len = strlen(BLITZ_G(tag_close_alt));
static_data->tag_comment_open_len = strlen(BLITZ_G(tag_comment_open));
static_data->tag_comment_close_len = strlen(BLITZ_G(tag_comment_close));
tpl->loop_stack_level = 0;
if (iterations) {
/*
"Inherit" iterations from opener, used for incudes. Just make a copy mark template
with special flag BLITZ_FLAG_ITERATION_IS_OTHER not to free this object.
*/
tpl->iterations = iterations;
tpl->flags |= BLITZ_FLAG_ITERATION_IS_OTHER;
} else {
MAKE_STD_ZVAL(tpl->iterations);
array_init(tpl->iterations);
}
if (tpl_parent) {
tpl->tpl_parent = tpl_parent;
} else {
tpl->tpl_parent = NULL;
}
tpl->error = NULL;
tpl->current_iteration = NULL;
tpl->caller_iteration = NULL;
tpl->last_iteration = NULL;
tpl->current_iteration_parent = & tpl->iterations;
tpl->current_path = estrndup("/", sizeof("/") - 1);
tpl->tmp_buf = emalloc(BLITZ_TMP_BUF_MAX_LEN);
static_data->fetch_index = NULL;
/* allocate "personal" hash-table */
if (globals == NULL) {
ALLOC_HASHTABLE(tpl->hash_globals);
zend_hash_init(tpl->hash_globals, 8, NULL, ZVAL_PTR_DTOR, 0);
} else {
/*
"Inherit" globals from opener, used for includes. Just make a copy mark template
with special flag BLITZ_FLAG_GLOBALS_IS_OTHER not to free this object.
*/
tpl->hash_globals = globals;
tpl->flags |= BLITZ_FLAG_GLOBALS_IS_OTHER;
}
ALLOC_HASHTABLE(tpl->ht_tpl_name);
zend_hash_init(tpl->ht_tpl_name, 8, NULL, ZVAL_PTR_DTOR, 0);
tpl->itpl_list = ecalloc(BLITZ_ITPL_ALLOC_INIT, sizeof(blitz_tpl*));
tpl->itpl_list_len = 0;
tpl->itpl_list_alloc = BLITZ_ITPL_ALLOC_INIT;
tpl->scope_stack_pos = 0;
return tpl;
}
/* }}} */
static inline void blitz_free_node(blitz_node *node) /* {{{ */
{
int i = 0;
call_arg *a = NULL;
a = node->args;
for (i = 0; i < node->n_args; i++, a++) {
if (a->len) {
efree(a->name);
}
}
node->n_args = 0;
if (node->args) {
efree(node->args);
node->args = NULL;
}
node->namespace_code = 0;
}
/* }}} */
static void blitz_free_tpl(blitz_tpl *tpl) /* {{{ */
{
int n_nodes = 0, i = 0;
if (!tpl) {
return;
}
n_nodes = tpl->static_data.n_nodes;
for(i = 0 ; i < n_nodes; i++) {
blitz_free_node(&tpl->static_data.nodes[i]);
}
if (tpl->static_data.nodes) {
efree(tpl->static_data.nodes);
}
if (tpl->static_data.body) {
efree(tpl->static_data.body);
}
if (tpl->hash_globals && !(tpl->flags & BLITZ_FLAG_GLOBALS_IS_OTHER)) {
zend_hash_destroy(tpl->hash_globals);
FREE_HASHTABLE(tpl->hash_globals);
}
if (tpl->ht_tpl_name) {
zend_hash_destroy(tpl->ht_tpl_name);
FREE_HASHTABLE(tpl->ht_tpl_name);
}
if (tpl->static_data.fetch_index) {
zend_hash_destroy(tpl->static_data.fetch_index);
FREE_HASHTABLE(tpl->static_data.fetch_index);
}
if (tpl->tmp_buf) {
efree(tpl->tmp_buf);
}
if (tpl->iterations && !(tpl->flags & BLITZ_FLAG_ITERATION_IS_OTHER)) {
zval_dtor(tpl->iterations);
efree(tpl->iterations);
tpl->iterations = NULL;
}
if (tpl->itpl_list) {
for(i=0; i<tpl->itpl_list_len; i++) {
if (tpl->itpl_list[i]) {
blitz_free_tpl(tpl->itpl_list[i]);
}
}
efree(tpl->itpl_list);
}
if (tpl->current_path) {
efree(tpl->current_path);
tpl->current_path = NULL;
}
if (tpl->error) {
efree(tpl->error);
}
efree(tpl);
}
/* }}} */
static blitz_tpl *blitz_init_tpl(const char *filename, int filename_len,
HashTable *globals, zval *iterations, blitz_tpl *tpl_parent TSRMLS_DC) /* {{{ */
{
int global_path_len = 0;
unsigned int filename_normalized_len = 0;
unsigned int add_buffer_len = 0;
int result = 0;
blitz_tpl *tpl = NULL;
blitz_tpl *i_tpl = NULL;
char *s = NULL;
int i = 0, check_loop_max = BLITZ_LOOP_STACK_MAX;
blitz_static_data *static_data;
tpl = blitz_init_tpl_base(globals, iterations, tpl_parent TSRMLS_CC);
if (!tpl) {
return NULL;
}
if (!filename || !filename_len) {
return tpl; /* OK, will be loaded after */
}
filename_normalized_len = filename_len;
#ifndef PHP_WIN32
/* "/dir" starts from root - don't add global path */
if ('/' != filename[0] && BLITZ_G(path)[0] != 0) {
#else
/* "C:\dir" starts from "root" - don't add global path */
if (!(filename_len>2 && filename[1] == ':' && BLITZ_IS_ALPHA_STRICT(filename[0]) && BLITZ_G(path)[0] != 0)) {
#endif
global_path_len = strlen(BLITZ_G(path));
if ((global_path_len + filename_len) > MAXPATHLEN) {
blitz_error(NULL TSRMLS_CC, E_WARNING, "INTERNAL ERROR: file path is too long (limited by MAXPATHLEN)");
blitz_free_tpl(tpl);
return NULL;
}
memcpy(tpl->static_data.name, BLITZ_G(path), global_path_len);
memcpy(tpl->static_data.name + global_path_len, filename, filename_len);
filename_normalized_len = filename_len + global_path_len;
tpl->static_data.name[filename_normalized_len] = '\0';
} else {
// we need realpath to check looped includes
VCWD_REALPATH(filename, tpl->static_data.name);
filename_normalized_len = strlen(tpl->static_data.name);
if (filename_normalized_len == 0) {
blitz_error(NULL TSRMLS_CC, E_WARNING, "unable to open file \"%s\" (realpath failed)", filename);
return NULL;
}
filename_normalized_len = strlen(tpl->static_data.name);
}
/* check loops */
if (BLITZ_G(check_recursion)) {
i_tpl = tpl;
while (i++ < check_loop_max) {
i_tpl = i_tpl->tpl_parent;
if (!i_tpl) break;
s = i_tpl->static_data.name;
if (0 == strncmp(s, tpl->static_data.name, filename_normalized_len)) {
blitz_error(NULL TSRMLS_CC, E_WARNING,
"ERROR: include recursion detected for \"%s\". You can disable this check setting blitz.check_recursion to 0 (please, don't do this if you don't know what you are doing)",
tpl->static_data.name
);
blitz_free_tpl(tpl);
return NULL;
}
}
}
#ifdef BLITZ_USE_STREAMS
result = blitz_read_with_stream(tpl TSRMLS_CC);
#else
result = blitz_read_with_fread(tpl TSRMLS_CC);
#endif
if (!result) {
return tpl;
}
/* search algorithm requires lager buffer: body_len + add_buffer */
static_data = & tpl->static_data;
add_buffer_len = MAX(
MAX(static_data->tag_open_len, static_data->tag_close_len),
MAX(
MAX(static_data->tag_open_alt_len, static_data->tag_close_alt_len),
MAX(static_data->tag_comment_open_len, static_data->tag_comment_close_len)
)
);
tpl->static_data.body = erealloc(tpl->static_data.body, tpl->static_data.body_len + add_buffer_len);
memset(tpl->static_data.body + tpl->static_data.body_len, '\0', add_buffer_len);
return tpl;
}
/* }}} */
static int blitz_load_body(blitz_tpl *tpl, const char *body, int body_len TSRMLS_DC) /* {{{ */
{
unsigned int add_buffer_len = 0;
char *name = "noname_loaded_from_zval";
int name_len = sizeof("noname_loaded_from_zval") - 1;
if (!tpl || !body || !body_len) {
return 0;
}
tpl->static_data.body_len = body_len;
if (tpl->static_data.body_len) {
add_buffer_len = MAX(
MAX(tpl->static_data.tag_open_len, tpl->static_data.tag_close_len),
MAX(
MAX(tpl->static_data.tag_open_alt_len, tpl->static_data.tag_close_alt_len),
MAX(tpl->static_data.tag_comment_open_len, tpl->static_data.tag_comment_close_len)
)
);
tpl->static_data.body = emalloc(tpl->static_data.body_len + add_buffer_len);
memcpy(tpl->static_data.body, body, body_len);
memset(tpl->static_data.body + tpl->static_data.body_len, '\0', add_buffer_len);
}
memcpy(tpl->static_data.name, name, name_len);
return 1;
}
/* }}} */
static int blitz_include_tpl_cached(blitz_tpl *tpl, const char *filename, unsigned int filename_len,
zval *iteration_params, blitz_tpl **itpl TSRMLS_DC) /* {{{ */
{
zval **desc = NULL;
unsigned long itpl_idx = 0;
zval *temp = NULL;
unsigned char has_protected_iteration = 0;
/* try to find already parsed tpl index */
if (SUCCESS == zend_hash_find(tpl->ht_tpl_name, (char *)filename, filename_len, (void **)&desc)) {
*itpl = tpl->itpl_list[Z_LVAL_PP(desc)];
if (iteration_params) {
(*itpl)->iterations = iteration_params;
(*itpl)->flags |= BLITZ_FLAG_ITERATION_IS_OTHER;
} else {
has_protected_iteration = (*itpl)->flags & BLITZ_FLAG_ITERATION_IS_OTHER;
if ((*itpl)->iterations && !has_protected_iteration) {
zend_hash_clean(Z_ARRVAL_P((*itpl)->iterations));
} else if (!(*itpl)->iterations) {
MAKE_STD_ZVAL((*itpl)->iterations);
array_init((*itpl)->iterations);
(*itpl)->flags ^= BLITZ_FLAG_ITERATION_IS_OTHER;
}
}
return 1;
}
if (filename_len >= MAXPATHLEN) {
blitz_error(NULL TSRMLS_CC, E_WARNING, "Filename exceeds the maximum allowed length of %d characters", MAXPATHLEN);
return 0;
}
/* initialize template */
if (!(*itpl = blitz_init_tpl(filename, filename_len, tpl->hash_globals, iteration_params, tpl TSRMLS_CC))) {
return 0;
}
/* analize template */
if (!blitz_analize(*itpl TSRMLS_CC)) {
blitz_free_tpl(*itpl);
return 0;
}
/* realloc list if needed */
if (tpl->itpl_list_len >= tpl->itpl_list_alloc-1) {
tpl->itpl_list = erealloc(tpl->itpl_list,(tpl->itpl_list_alloc<<1) * sizeof(blitz_tpl*));
tpl->itpl_list_alloc <<= 1;
}
/* save template index values */
itpl_idx = tpl->itpl_list_len;
tpl->itpl_list[itpl_idx] = *itpl;
MAKE_STD_ZVAL(temp);
ZVAL_LONG(temp, itpl_idx);
zend_hash_update(tpl->ht_tpl_name, (char *)filename, filename_len, &temp, sizeof(zval *), NULL);
tpl->itpl_list_len++;
return 1;
}
/* }}} */
static void blitz_resource_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC) /* {{{ */
{
blitz_tpl *tpl = NULL;
tpl = (blitz_tpl*)rsrc->ptr;
blitz_free_tpl(tpl);
}
/* }}} */
static void php_blitz_init_globals(zend_blitz_globals *blitz_globals) /* {{{ */
{
memset(blitz_globals, 0, sizeof(zend_blitz_globals));
blitz_globals->var_prefix = BLITZ_TAG_VAR_PREFIX;
blitz_globals->tag_open = BLITZ_TAG_OPEN;
blitz_globals->tag_close = BLITZ_TAG_CLOSE;
blitz_globals->tag_open_alt = BLITZ_TAG_OPEN_ALT;
blitz_globals->tag_close_alt = BLITZ_TAG_CLOSE_ALT;
blitz_globals->enable_alternative_tags = 1;
blitz_globals->enable_comments = 0;
blitz_globals->enable_include = 1;
blitz_globals->enable_callbacks = 1;
blitz_globals->enable_php_callbacks = 1;
blitz_globals->php_callbacks_first = 1;
blitz_globals->path = "";
blitz_globals->remove_spaces_around_context_tags = 1;
blitz_globals->warn_context_duplicates = 0;
blitz_globals->check_recursion = 1;
blitz_globals->tag_comment_open = BLITZ_TAG_COMMENT_OPEN;
blitz_globals->tag_comment_close = BLITZ_TAG_COMMENT_CLOSE;
blitz_globals->scope_lookup_limit = 0;
blitz_globals->auto_escape = 0;
blitz_globals->throw_exceptions = 0;
}
/* }}} */
static void blitz_get_node_paths(zval *list, blitz_node *node, const char *parent_path, unsigned int skip_vars, unsigned int with_type) /* {{{ */
{
char suffix[2] = "\x0";
char path[BLITZ_CONTEXT_PATH_MAX_LEN] = "\x0";
unsigned int may_have_children = 0;
blitz_node *i_node = NULL;
if (!node)
return;
/* hidden, error or non-finalized node (end was not found) */
if (node->hidden || node->type == BLITZ_NODE_TYPE_BEGIN)
return;
if (node->type == BLITZ_NODE_TYPE_CONTEXT ||
node->type == BLITZ_NODE_TYPE_IF_CONTEXT ||
node->type == BLITZ_NODE_TYPE_UNLESS_CONTEXT ||
node->type == BLITZ_NODE_TYPE_ELSEIF_CONTEXT ||
node->type == BLITZ_NODE_TYPE_ELSE_CONTEXT)
{
may_have_children = 1;
suffix[0] = '/';
if (node->type == BLITZ_NODE_TYPE_CONTEXT) { /* contexts: use context name from args instead of useless "BEGIN" */
sprintf(path, "%s%s%s", parent_path, node->args[0].name, suffix);
} else {
sprintf(path, "%s%s%s", parent_path, node->lexem, suffix);
}
add_next_index_string(list, path, 1);
} else if (!skip_vars) {
sprintf(path, "%s%s%s", parent_path, node->lexem, suffix);
add_next_index_string(list, path, 1);
}
if (*path != '\0' && with_type) {
if (node->type == BLITZ_NODE_TYPE_CONTEXT) {
add_next_index_long(list, BLITZ_NODE_PATH_UNIQUE);
} else {
add_next_index_long(list, BLITZ_NODE_PATH_NON_UNIQUE);
}
}
if (node->first_child) {
i_node = node->first_child;
while (i_node) {
blitz_get_node_paths(list, i_node, path, skip_vars, with_type);
i_node = i_node->next;
}
}
}
/* }}} */
static void blitz_get_path_list(blitz_tpl *tpl, zval *list, unsigned int skip_vars, unsigned int with_type) /* {{{ */
{
unsigned long i = 0;
unsigned int last_close = 0;
char path[BLITZ_CONTEXT_PATH_MAX_LEN] = "/";
for (i = 0; i < tpl->static_data.n_nodes; ++i) {
if (tpl->static_data.nodes[i].pos_begin >= last_close) {
blitz_get_node_paths(list, tpl->static_data.nodes + i, path, skip_vars, with_type);
last_close = tpl->static_data.nodes[i].pos_end;
}
}
return;
}
/* }}} */
static void php_blitz_dump_node(blitz_node *node, unsigned int *p_level) /* {{{ */
{
unsigned long j = 0;
unsigned int level = 0;
char shift_str[] = "==========================================================";
blitz_node *child = NULL;
if (!node) {
return;
}
level = p_level ? *p_level : 0;
if (level >= 10) {
level = 10;
}
memset(shift_str,' ',2 * level + 1);
shift_str[2*level + 1] = '^';
shift_str[2*level + 3] = '\x0';
php_printf("\n%s%s[%u] (%lu(%lu), %lu(%lu)); ",
shift_str,
node->lexem,
(unsigned int)node->type,
node->pos_begin, node->pos_begin_shift,
node->pos_end, node->pos_end_shift
);
if (BLITZ_IS_METHOD(node->type)) {
php_printf("ARGS(%d): ",node->n_args);
for (j = 0; j < node->n_args; ++j) {
if (j) php_printf(",");
php_printf("%s(%d)",node->args[j].name, node->args[j].type);
}
if (node->first_child) {
php_printf("; CHILDREN:");
child = node->first_child;
while (child) {
(*p_level)++;
php_blitz_dump_node(child, p_level);
(*p_level)--;
child = child->next;
}
}
}
}
/* }}} */
static void php_blitz_dump_struct(blitz_tpl *tpl) /* {{{ */
{
unsigned int level = 0;
blitz_node *node = NULL;
php_printf("== TREE STRUCT (%ld nodes):",(unsigned long)tpl->static_data.n_nodes);
node = tpl->static_data.nodes;
while (node) {
php_blitz_dump_node(node, &level);
node = node->next;
}
php_printf("\n");
return;
}
/* }}} */
void blitz_warn_context_duplicates(blitz_tpl *tpl TSRMLS_DC) /* {{{ */
{
zval *path_list = NULL;
HashTable uk_path;
zval **path = NULL, **path_type = NULL;
int z = 1;
MAKE_STD_ZVAL(path_list);
array_init(path_list);
zend_hash_init(&uk_path, 10, NULL, NULL, 0);
blitz_get_path_list(tpl, path_list, 1, 1);
zend_hash_internal_pointer_reset(Z_ARRVAL_P(path_list));
while (zend_hash_get_current_data_ex(Z_ARRVAL_P(path_list), (void**) &path, NULL) == SUCCESS) {
zend_hash_move_forward(Z_ARRVAL_P(path_list));
zend_hash_get_current_data_ex(Z_ARRVAL_P(path_list), (void**) &path_type, NULL);
if (Z_LVAL_PP(path_type) == BLITZ_NODE_PATH_NON_UNIQUE) {
zend_hash_move_forward(Z_ARRVAL_P(path_list));
continue;
}
if (zend_hash_exists(&uk_path, Z_STRVAL_PP(path), Z_STRLEN_PP(path))) {
blitz_error(tpl TSRMLS_CC, E_WARNING,
"WARNING: context name \"%s\" duplicate in %s",
Z_STRVAL_PP(path), tpl->static_data.name
);
} else {
zend_hash_add(&uk_path, Z_STRVAL_PP(path), Z_STRLEN_PP(path), &z, sizeof(int), NULL);
}
zend_hash_move_forward(Z_ARRVAL_P(path_list));
}
zval_ptr_dtor(&path_list);
zend_hash_destroy(&uk_path);
return;
}
/* }}} */
static int blitz_find_tag_positions(blitz_string *body, blitz_list *list_pos TSRMLS_DC) { /* {{{ */
unsigned char current_tag_pos[BLITZ_TAG_LIST_LEN];
unsigned char idx_tag[BLITZ_TAG_LIST_LEN];
blitz_string list_tag[BLITZ_TAG_LIST_LEN];
unsigned char tag_list_len = BLITZ_TAG_LIST_LEN;
unsigned long pos = 0, pos_check_max = 0;
unsigned char c = 0, p = 0, tag_id = 0, idx_tag_id = 0, found = 0, skip_steps = 0;
unsigned char *pc = NULL;
unsigned int tag_min_len = 0;
unsigned char check_map[256];
blitz_string *t = NULL;
tag_pos *tp = NULL;
list_tag[BLITZ_TAG_ID_OPEN].s = BLITZ_G(tag_open);
list_tag[BLITZ_TAG_ID_CLOSE].s = BLITZ_G(tag_close);
idx_tag[0] = BLITZ_TAG_ID_OPEN;
idx_tag[1] = BLITZ_TAG_ID_CLOSE;
tag_id = 1;
#if BLITZ_ENABLE_ALTERNATIVE_TAGS
if (BLITZ_G(enable_alternative_tags)) {
list_tag[BLITZ_TAG_ID_OPEN_ALT].s = BLITZ_G(tag_open_alt);
list_tag[BLITZ_TAG_ID_CLOSE_ALT].s = BLITZ_G(tag_close_alt);
idx_tag[2] = BLITZ_TAG_ID_OPEN_ALT;
idx_tag[3] = BLITZ_TAG_ID_CLOSE_ALT;
tag_id += 2;
} else {
tag_list_len -= 2;
}
#else
tag_list_len -= 2;
#endif
#if BLITZ_ENABLE_COMMENTS
if (BLITZ_G(enable_comments)) {
list_tag[BLITZ_TAG_ID_COMMENT_OPEN].s = BLITZ_G(tag_comment_open);
list_tag[BLITZ_TAG_ID_COMMENT_CLOSE].s = BLITZ_G(tag_comment_close);
idx_tag[tag_id + 1] = BLITZ_TAG_ID_COMMENT_OPEN;
idx_tag[tag_id + 2] = BLITZ_TAG_ID_COMMENT_CLOSE;
} else {
tag_list_len -= 2;
}
#else
tag_list_len -= 2;
#endif
memset(check_map, 0, 256*sizeof(unsigned char));
tag_min_len = strlen(list_tag[0].s);
for (idx_tag_id = 0; idx_tag_id < tag_list_len; idx_tag_id++) {
tag_id = idx_tag[idx_tag_id]; // loop through index, some tags can be disabled
list_tag[tag_id].len = strlen(list_tag[tag_id].s);
current_tag_pos[tag_id] = 0;
if (list_tag[tag_id].len < tag_min_len) {
tag_min_len = list_tag[tag_id].len;
}
pc = (unsigned char *) list_tag[tag_id].s;
while (*pc) {
check_map[*pc] = 1;
pc++;
}
}
pc = (unsigned char *) body->s;
c = *pc;
pos = 0;
skip_steps = 0;
pos_check_max = body->len - tag_min_len;
while (c) {
c = *pc;
if (BLITZ_DEBUG) php_printf("moving at symbol: %c\n", c);
found = 0;
idx_tag_id = 0;
while (idx_tag_id < tag_list_len) {
tag_id = idx_tag[idx_tag_id]; // loop through index, some tags can be disabled
t = list_tag + tag_id;
p = current_tag_pos[tag_id];
if (c == t->s[p]) {
if (BLITZ_DEBUG) php_printf("checking tag_id = %d...\n", tag_id);
found = 1;
p++;
if (p == t->len) {
if (!blitz_realloc_list_to_add(list_pos))
return 0;
tp = (tag_pos*)list_pos->end;
tp->pos = pos - list_tag[tag_id].len + 1;
tp->tag_id = tag_id;
list_pos->size++;
list_pos->end = list_pos->first + list_pos->size * list_pos->item_size;
for (tag_id = 0; tag_id < tag_list_len; tag_id++) {
current_tag_pos[tag_id] = 0;
}
break;
}
current_tag_pos[tag_id]++;
} else {
if (p > 0) {
current_tag_pos[tag_id] = 0;
continue; // check the same tag from beginning
}
}
idx_tag_id++;
}
if (found == 0) {
while ((pos < pos_check_max) && 0 == check_map[*(pc + tag_min_len)]) {
pc += tag_min_len;
pos += tag_min_len;
}
}
pc++;
pos++;
}
return 1;