1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 7 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2018 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Bob Weinand <bwoebi@php.net> |
16 +----------------------------------------------------------------------+
17 */
18
19 #include "phpdbg_webdata_transfer.h"
20 #include "ext/standard/php_var.h"
21
phpdbg_is_auto_global(char * name,int len)22 static int phpdbg_is_auto_global(char *name, int len) {
23 int ret;
24 zend_string *str = zend_string_init(name, len, 0);
25 ret = zend_is_auto_global(str);
26 zend_string_free(str);
27 return ret;
28 }
29
phpdbg_webdata_compress(char ** msg,size_t * len)30 PHPDBG_API void phpdbg_webdata_compress(char **msg, size_t *len) {
31 zval array;
32 HashTable *ht;
33 zval zv[9] = {{{0}}};
34
35 array_init(&array);
36 ht = Z_ARRVAL(array);
37
38 /* fetch superglobals */
39 {
40 phpdbg_is_auto_global(ZEND_STRL("GLOBALS"));
41 /* might be JIT */
42 phpdbg_is_auto_global(ZEND_STRL("_ENV"));
43 phpdbg_is_auto_global(ZEND_STRL("_SERVER"));
44 phpdbg_is_auto_global(ZEND_STRL("_REQUEST"));
45 array_init(&zv[1]);
46 zend_hash_copy(Z_ARRVAL(zv[1]), &EG(symbol_table), NULL);
47 Z_ARRVAL(zv[1])->pDestructor = NULL; /* we're operating on a copy! Don't double free zvals */
48 zend_hash_str_del(Z_ARRVAL(zv[1]), ZEND_STRL("GLOBALS")); /* do not use the reference to itself in json */
49 zend_hash_str_add(ht, ZEND_STRL("GLOBALS"), &zv[1]);
50 }
51
52 /* save php://input */
53 {
54 php_stream *stream;
55 zend_string *str;
56
57 stream = php_stream_temp_create_ex(TEMP_STREAM_DEFAULT, SAPI_POST_BLOCK_SIZE, PG(upload_tmp_dir));
58 if ((str = php_stream_copy_to_mem(stream, PHP_STREAM_COPY_ALL, 0))) {
59 ZVAL_STR(&zv[2], str);
60 } else {
61 ZVAL_EMPTY_STRING(&zv[2]);
62 }
63 Z_SET_REFCOUNT(zv[2], 1);
64 zend_hash_str_add(ht, ZEND_STRL("input"), &zv[2]);
65 }
66
67 /* change sapi name */
68 {
69 if (sapi_module.name) {
70 ZVAL_STRING(&zv[6], sapi_module.name);
71 } else {
72 Z_TYPE_INFO(zv[6]) = IS_NULL;
73 }
74 zend_hash_str_add(ht, ZEND_STRL("sapi_name"), &zv[6]);
75 Z_SET_REFCOUNT(zv[6], 1);
76 }
77
78 /* handle modules / extensions */
79 {
80 zend_module_entry *module;
81 zend_extension *extension;
82 zend_llist_position pos;
83
84 array_init(&zv[7]);
85 ZEND_HASH_FOREACH_PTR(&module_registry, module) {
86 zval *value = ecalloc(sizeof(zval), 1);
87 ZVAL_STRING(value, module->name);
88 zend_hash_next_index_insert(Z_ARRVAL(zv[7]), value);
89 } ZEND_HASH_FOREACH_END();
90 zend_hash_str_add(ht, ZEND_STRL("modules"), &zv[7]);
91
92 array_init(&zv[8]);
93 extension = (zend_extension *) zend_llist_get_first_ex(&zend_extensions, &pos);
94 while (extension) {
95 zval *value = ecalloc(sizeof(zval), 1);
96 ZVAL_STRING(value, extension->name);
97 zend_hash_next_index_insert(Z_ARRVAL(zv[8]), value);
98 extension = (zend_extension *) zend_llist_get_next_ex(&zend_extensions, &pos);
99 }
100 zend_hash_str_add(ht, ZEND_STRL("extensions"), &zv[8]);
101 }
102
103 /* switch cwd */
104 if (SG(options) & SAPI_OPTION_NO_CHDIR) {
105 char *ret = NULL;
106 char path[MAXPATHLEN];
107
108 #if HAVE_GETCWD
109 ret = VCWD_GETCWD(path, MAXPATHLEN);
110 #elif HAVE_GETWD
111 ret = VCWD_GETWD(path);
112 #endif
113 if (ret) {
114 ZVAL_STRING(&zv[5], path);
115 Z_SET_REFCOUNT(zv[5], 1);
116 zend_hash_str_add(ht, ZEND_STRL("cwd"), &zv[5]);
117 }
118 }
119
120 /* get system ini entries */
121 {
122 zend_ini_entry *ini_entry;
123
124 array_init(&zv[3]);
125 ZEND_HASH_FOREACH_PTR(EG(ini_directives), ini_entry) {
126 zval *value = ecalloc(sizeof(zval), 1);
127 if (ini_entry->modified) {
128 if (!ini_entry->orig_value) {
129 efree(value);
130 continue;
131 }
132 ZVAL_STR(value, ini_entry->orig_value);
133 } else {
134 if (!ini_entry->value) {
135 efree(value);
136 continue;
137 }
138 ZVAL_STR(value, ini_entry->value);
139 }
140 zend_hash_add(Z_ARRVAL(zv[3]), ini_entry->name, value);
141 } ZEND_HASH_FOREACH_END();
142 zend_hash_str_add(ht, ZEND_STRL("systemini"), &zv[3]);
143 }
144
145 /* get perdir ini entries */
146 if (EG(modified_ini_directives)) {
147 zend_ini_entry *ini_entry;
148
149 array_init(&zv[4]);
150 ZEND_HASH_FOREACH_PTR(EG(ini_directives), ini_entry) {
151 zval *value = ecalloc(sizeof(zval), 1);
152 if (!ini_entry->value) {
153 efree(value);
154 continue;
155 }
156 ZVAL_STR(value, ini_entry->value);
157 zend_hash_add(Z_ARRVAL(zv[4]), ini_entry->name, value);
158 } ZEND_HASH_FOREACH_END();
159 zend_hash_str_add(ht, ZEND_STRL("userini"), &zv[4]);
160 }
161
162 /* encode data */
163 {
164 php_serialize_data_t var_hash;
165 smart_str buf = {0};
166
167 PHP_VAR_SERIALIZE_INIT(var_hash);
168 php_var_serialize(&buf, &array, &var_hash);
169 PHP_VAR_SERIALIZE_DESTROY(var_hash);
170 *msg = ZSTR_VAL(buf.s);
171 *len = ZSTR_LEN(buf.s);
172 }
173
174 zend_array_destroy(Z_ARR(array));
175 }
176
