在PHP7.0以后的版本，因为有些方法被废弃，有些方法的参数变掉了，导致，原有的基于PHP5.3版本的敏感词库编译不能通过，因为项目中需要用到敏感词，这几天恶补了下PHP7.0的源码，把敏感词扩展库自己修改了下，目前验证通过了。现在记录下来。
1、php_trie_filter_dtor
static void php_trie_filter_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC){
Trie *trie = (Trie *)rsrc->ptr;
trie_free(trie);
}
改成了
static void php_trie_filter_dtor(zend_resource *rsrc TSRMLS_DC)
{
Trie *trie = (Trie *)rsrc->ptr;
trie_free(trie);
}
我们发现该函数的参数类型是
zend_resource 。这是
PHP7 新增的数据结构，在 PHP 5 则是
zend_rsrc_list_entry
2、trie_filter_load
PHP_FUNCTION(trie_filter_load)
{
Trie *trie;
char *path;
int path_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s",
&path, &path_len) == FAILURE) {
RETURN_NULL();
}
trie = trie_new_from_file(path);
if (!trie) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"Unable to load %s", path);
RETURN_NULL();
}
ZEND_REGISTER_RESOURCE(return_value, trie, le_trie_filter);
}
改成了
PHP_FUNCTION(trie_filter_load)
{
Trie *trie;
char *path;
int path_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &path, &path_len) == FAILURE) {
RETURN_NULL();
}
trie = trie_new_from_file(path);
if (!trie) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to load %s", path);
RETURN_NULL();
}
RETURN_RES(zend_register_resource(trie, le_trie_filter));
}
在 PHP 7 中删除了原来的
ZEND_REGISTER_RESOURCE 宏，直接使用
zend_register_resource 函数
ZEND_API zend_resource* zend_register_resource(void *rsrc_pointer, int rsrc_type)
|
参数 |
解释 |
|
rsrc_pointer |
资源数据指针 |
|
rsrc_type |
注册资源类型时获得的资源类型 id |
3、trie_search_all
static int trie_search_all(Trie *trie, const AlphaChar *text, zval *data)
{
TrieState *s;
const AlphaChar *p;
const AlphaChar *base;
zval *word = NULL;
base = text;
if (! (s = trie_root(trie))) {
return -1;
}
while (*text) {
p = text;
if(! trie_state_is_walkable(s, *p)) {
trie_state_rewind(s);
text++;
continue;
}
while(*p && trie_state_is_walkable(s, *p) && ! trie_state_is_leaf(s)) {
trie_state_walk(s, *p++);
if (trie_state_is_terminal(s)) {
MAKE_STD_ZVAL(word);
array_init_size(word, 3);
add_next_index_long(word, text - base);
add_next_index_long(word, p - text);
add_next_index_zval(data, word);
}
}
trie_state_rewind(s);
text++;
}
trie_state_free(s);
return 0;
}
改成了
static int trie_search_all(Trie *trie, const AlphaChar *text, zval *data)
{
TrieState *s;
const AlphaChar *p;
const AlphaChar *base;
zval word;
base = text;
if (! (s = trie_root(trie))) {
return -1;
}
while (*text) {
p = text;
if(! trie_state_is_walkable(s, *p)) {
trie_state_rewind(s);
text++;
continue;
}
while(*p && trie_state_is_walkable(s, *p) && ! trie_state_is_leaf(s)) {
trie_state_walk(s, *p++);
if (trie_state_is_terminal(s)) {
array_init_size(&word, 3);
add_next_index_long(&word, text - base);
add_next_index_long(&word, p - text);
add_next_index_zval(data, &word);
}
}
trie_state_rewind(s);
text++;
}
trie_state_free(s);
return 0;
}
这里几个函数暂时未搞明白什么意思
4、trie_filter_search
PHP_FUNCTION(trie_filter_search)
{
Trie *trie;
zval *trie_resource;
unsigned char *text;
int text_len;
int offset = -1, i, ret;
TrieData length = 0;
AlphaChar *alpha_text;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rs",
&trie_resource, &text, &text_len) == FAILURE) {
RETURN_FALSE;
}
array_init(return_value);
if (text_len < 1 || strlen(text) != text_len) {
php_error_docref(NULL TSRMLS_CC, E_NOTICE, "input is empty");
return;
}
ZEND_FETCH_RESOURCE(trie, Trie *, &trie_resource, -1,
PHP_TRIE_FILTER_RES_NAME, le_trie_filter);
alpha_text = emalloc(sizeof(AlphaChar) * text_len + 1);
for (i = 0; i < text_len; i++) {
alpha_text[i] = (AlphaChar) text[i];
}
alpha_text[text_len] = TRIE_CHAR_TERM;
ret = trie_search_one(trie, alpha_text, &offset, &length);
efree(alpha_text);
if (ret == 0) {
return;
} else if (ret == 1) {
add_next_index_long(return_value, offset);
add_next_index_long(return_value, length);
} else {
RETURN_FALSE;
}
}
改成了
PHP_FUNCTION(trie_filter_search)
{
Trie *trie;
zval *trie_resource;
unsigned char *text;
int text_len;
int offset = -1, i, ret;
TrieData length = 0;
AlphaChar *alpha_text;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rs", &trie_resource, &text, &text_len) == FAILURE)
{
RETURN_FALSE;
}
array_init(return_value);
if (text_len < 1 || strlen(text) != text_len) {
php_error_docref(NULL TSRMLS_CC, E_NOTICE, "input is empty");
return;
}
trie = (Trie *)zend_fetch_resource(Z_RES_P(trie_resource), PHP_TRIE_FILTER_RES_NAME, le_trie_filter);
alpha_text = emalloc(sizeof(AlphaChar) * (text_len + 1));
for (i = 0; i < text_len; i++) {
alpha_text[i] = (AlphaChar) text[i];
}
alpha_text[text_len] = TRIE_CHAR_TERM;
ret = trie_search_one(trie, alpha_text, &offset, &length);
efree(alpha_text);
if (ret == 0) {
return;
} else if (ret == 1) {
add_next_index_long(return_value, offset);
add_next_index_long(return_value, length);
} else {
RETURN_FALSE;
}
}
使用资源
ZEND_API void *zend_fetch_resource(zend_resource *res, const char *resource_type_name, int resource_type)
在 PHP 7 中删除了原有的
ZEND_FETCH_RESOURCE 宏，直接使用函数
zend_fetch_resource ，而且解析方式也变得简单了很多，想比
PHP 5 要高效很多，后面我们再通过图片分析对比。
|
参数 |
含义 |
|
res |
资源指针 |
|
resource_type_name |
该类资源的字符串别名 |
|
resource_type |
该类资源的类型 id |
5、Trie_filter_search_all
PHP_FUNCTION(trie_filter_search_all)
{
Trie *trie;
zval *trie_resource;
unsigned char *text;
int text_len;
int i, ret;
AlphaChar *alpha_text;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rs",
&trie_resource, &text, &text_len) == FAILURE) {
RETURN_FALSE;
}
array_init(return_value);
if (text_len < 1 || strlen(text) != text_len) {
php_error_docref(NULL TSRMLS_CC, E_NOTICE, "input is empty");
return;
}
ZEND_FETCH_RESOURCE(trie, Trie *, &trie_resource, -1,
PHP_TRIE_FILTER_RES_NAME, le_trie_filter);
alpha_text = emalloc(sizeof(AlphaChar) * text_len + 1);
for (i = 0; i < text_len; i++) {
alpha_text[i] = (AlphaChar) text[i];
}
alpha_text[text_len] = TRIE_CHAR_TERM;
ret = trie_search_all(trie, alpha_text, return_value);
efree(alpha_text);
if (ret == 0) {
return;
} else {
RETURN_FALSE;
}
}
改成了
PHP_FUNCTION(trie_filter_search_all)
{
Trie *trie;
zval *trie_resource;
unsigned char *text;
int text_len;
int i, ret;
AlphaChar *alpha_text;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rs", &trie_resource, &text, &text_len) == FAILURE) {
RETURN_FALSE;
}
array_init(return_value);
if (text_len < 1 || strlen(text) != text_len) {
php_error_docref(NULL TSRMLS_CC, E_NOTICE, "input is empty");
return;
}
trie = (Trie *)zend_fetch_resource(Z_RES_P(trie_resource), PHP_TRIE_FILTER_RES_NAME, le_trie_filter);
alpha_text = emalloc(sizeof(AlphaChar) * (text_len + 1));
for (i = 0; i < text_len; i++) {
alpha_text[i] = (AlphaChar) text[i];
}
alpha_text[text_len] = TRIE_CHAR_TERM;
ret = trie_search_all(trie, alpha_text, return_value);
efree(alpha_text);
if (ret == 0) {
return;
} else {
RETURN_FALSE;
}
}
6、Trie_filter_new
PHP_FUNCTION(trie_filter_new)
{
Trie *trie;
AlphaMap *alpha_map;
int ret;
alpha_map = alpha_map_new();
if (! alpha_map) {
RETURN_NULL();
}
if (alpha_map_add_range(alpha_map, 0x00, 0xff) != 0) {
/* treat all strings as byte stream */
alpha_map_free(alpha_map);
RETURN_NULL();
}
trie = trie_new(alpha_map);
alpha_map_free(alpha_map);
if (! trie) {
RETURN_NULL();
}
ZEND_REGISTER_RESOURCE(return_value, trie, le_trie_filter);
}
改成了
PHP_FUNCTION(trie_filter_new)
{
Trie *trie;
AlphaMap *alpha_map;
int ret;
alpha_map = alpha_map_new();
if (! alpha_map) {
RETURN_NULL();
}
if (alpha_map_add_range(alpha_map, 0x00, 0xff) != 0) {
/* treat all strings as byte stream */
alpha_map_free(alpha_map);
RETURN_NULL();
}
trie = trie_new(alpha_map);
alpha_map_free(alpha_map);
if (! trie) {
RETURN_NULL();
}
RETURN_RES(zend_register_resource(trie, le_trie_filter));
}
资源的注册
在
PHP 7 中删除了原来的
ZEND_REGISTER_RESOURCE 宏，直接使用
zend_register_resource 函数
ZEND_API zend_resource* zend_register_resource(void *rsrc_pointer, int rsrc_type)
| 参数 | 解释 |
| rsrc_pointer | 资源数据指针 |
| rsrc_type | 注册资源类型时获得的资源类型
id |
7、Trie_filter_store
PHP_FUNCTION(trie_filter_store)
{
Trie *trie;
zval *trie_resource;
unsigned char *keyword, *p;
int keyword_len, i;
AlphaChar alpha_key[KEYWORD_MAX_LEN+1];
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rs",
&trie_resource, &keyword, &keyword_len) == FAILURE) {
RETURN_FALSE;
}
if (keyword_len > KEYWORD_MAX_LEN || keyword_len < 1) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "keyword should has [1, %d] bytes", KEYWORD_MAX_LEN);
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE(trie, Trie *, &trie_resource, -1, PHP_TRIE_FILTER_RES_NAME, le_trie_filter);
p = keyword;
i = 0;
while (*p && *p != "
" && *p != "
") {
alpha_key[i++] = (AlphaChar)*p;
p++;
}
alpha_key[i] = TRIE_CHAR_TERM;
if (! trie_store(trie, alpha_key, -1)) {
RETURN_FALSE;
}
RETURN_TRUE;
}
改成了
PHP_FUNCTION(trie_filter_store)
{
Trie *trie;
zval *trie_resource;
unsigned char *keyword, *p;
int keyword_len, i;
AlphaChar alpha_key[KEYWORD_MAX_LEN+1];
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rs", &trie_resource,&keyword, &keyword_len) == FAILURE)
{
RETURN_FALSE;
}
if (keyword_len > KEYWORD_MAX_LEN || keyword_len < 1) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "keyword should has [1, %d] bytes", KEYWORD_MAX_LEN);
RETURN_FALSE;
}
trie = (Trie *)zend_fetch_resource(Z_RES_P(trie_resource), PHP_TRIE_FILTER_RES_NAME, le_trie_filter);
p = keyword;
i = 0;
while (*p && *p != "
" && *p != "
") {
alpha_key[i++] = (AlphaChar)*p;
p++;
}
alpha_key[i] = TRIE_CHAR_TERM;
if (! trie_store(trie, alpha_key, -1)) {
RETURN_FALSE;
}
RETURN_TRUE;
}
8、Trie_filter_save
PHP_FUNCTION(trie_filter_save)
{
Trie *trie;
zval *trie_resource;
unsigned char *filename;
int filename_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rs",
&trie_resource, &filename, &filename_len) == FAILURE) {
RETURN_FALSE;
}
if (filename_len < 1 || strlen(filename) != filename_len) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "save path required");
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE(trie, Trie *, &trie_resource, -1, PHP_TRIE_FILTER_RES_NAME, le_trie_filter);
if (trie_save(trie, filename)) {
RETURN_FALSE;
}
RETURN_TRUE;
}
改成
PHP_FUNCTION(trie_filter_save)
{
Trie *trie;
zval *trie_resource;
unsigned char *filename;
int filename_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rs",&trie_resource, &filename, &filename_len) == FAILURE)
{
RETURN_FALSE;
}
if (filename_len < 1 || strlen(filename) != filename_len) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "save path required");
RETURN_FALSE;
}
trie = (Trie *)zend_fetch_resource(Z_RES_P(trie_resource), PHP_TRIE_FILTER_RES_NAME, le_trie_filter);
if (trie_save(trie, filename)) {
RETURN_FALSE;
}
RETURN_TRUE;
}
9、Trie_filter_free
PHP_FUNCTION(trie_filter_free)
{
Trie *trie;
zval *trie_resource;
int resource_id;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &trie_resource) == FAILURE) {
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE(trie, Trie *, &trie_resource, -1, PHP_TRIE_FILTER_RES_NAME, le_trie_filter);
resource_id = Z_RESVAL_P(trie_resource);
if (zend_list_delete(resource_id) == SUCCESS) {
RETURN_TRUE;
}
RETURN_FALSE;
}
改成
PHP_FUNCTION(trie_filter_free)
{
Trie *trie;
zval *trie_resource;
int resource_id;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &trie_resource) == FAILURE) {
RETURN_FALSE;
}
trie = (Trie *)zend_fetch_resource(Z_RES_P(trie_resource), PHP_TRIE_FILTER_RES_NAME, le_trie_filter);
resource_id = Z_RES_P(trie_resource);
if (zend_list_delete(resource_id) == SUCCESS) {
RETURN_TRUE;
}
RETURN_FALSE;
}
