1 /*
2  * Copyright 2014-2017 MongoDB, Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *   http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef PHONGO_H
18 #define PHONGO_H
19 
20 /* External libs */
21 #include "bson/bson.h"
22 #include "mongoc/mongoc.h"
23 
24 #include "phongo_version.h"
25 #include "phongo_compat.h"
26 #include "php_phongo_classes.h"
27 
28 #define phpext_mongodb_ptr &mongodb_module_entry
29 extern zend_module_entry mongodb_module_entry;
30 
31 /* Structure for persisted libmongoc clients. The PID is included to ensure that
32  * processes do not destroy clients created by other processes (relevant for
33  * forking). We avoid using pid_t for Windows compatibility. */
34 typedef struct {
35 	mongoc_client_t* client;
36 	int              created_by_pid;
37 	int              last_reset_by_pid;
38 } php_phongo_pclient_t;
39 
40 ZEND_BEGIN_MODULE_GLOBALS(mongodb)
41 	char*             debug;
42 	FILE*             debug_fd;
43 	bson_mem_vtable_t bsonMemVTable;
44 	HashTable         pclients;
45 	HashTable*        subscribers;
46 ZEND_END_MODULE_GLOBALS(mongodb)
47 
48 #define MONGODB_G(v) ZEND_MODULE_GLOBALS_ACCESSOR(mongodb, v)
49 #if defined(ZTS) && defined(COMPILE_DL_MONGODB)
50 ZEND_TSRMLS_CACHE_EXTERN()
51 #endif
52 
53 #define PHONGO_WRITE_CONCERN_W_MAJORITY "majority"
54 
55 /* This enum is necessary since mongoc_server_description_type_t is private and
56  * we need to translate strings returned by mongoc_server_description_type() to
57  * Server integer constants. */
58 typedef enum {
59 	PHONGO_SERVER_UNKNOWN           = 0,
60 	PHONGO_SERVER_STANDALONE        = 1,
61 	PHONGO_SERVER_MONGOS            = 2,
62 	PHONGO_SERVER_POSSIBLE_PRIMARY  = 3,
63 	PHONGO_SERVER_RS_PRIMARY        = 4,
64 	PHONGO_SERVER_RS_SECONDARY      = 5,
65 	PHONGO_SERVER_RS_ARBITER        = 6,
66 	PHONGO_SERVER_RS_OTHER          = 7,
67 	PHONGO_SERVER_RS_GHOST          = 8,
68 	PHONGO_SERVER_DESCRIPTION_TYPES = 9,
69 } php_phongo_server_description_type_t;
70 
71 typedef struct {
72 	php_phongo_server_description_type_t type;
73 	const char*                          name;
74 } php_phongo_server_description_type_map_t;
75 
76 extern php_phongo_server_description_type_map_t php_phongo_server_description_type_map[];
77 
78 typedef enum {
79 	PHONGO_ERROR_INVALID_ARGUMENT  = 1,
80 	PHONGO_ERROR_RUNTIME           = 2,
81 	PHONGO_ERROR_UNEXPECTED_VALUE  = 8,
82 	PHONGO_ERROR_MONGOC_FAILED     = 3,
83 	PHONGO_ERROR_CONNECTION_FAILED = 7,
84 	PHONGO_ERROR_LOGIC             = 9
85 } php_phongo_error_domain_t;
86 
87 /* This constant is used for determining if a server error for an exceeded query
88  * or command should select ExecutionTimeoutException. */
89 #define PHONGO_SERVER_ERROR_EXCEEDED_TIME_LIMIT 50
90 
91 zend_class_entry* phongo_exception_from_mongoc_domain(uint32_t /* mongoc_error_domain_t */ domain, uint32_t /* mongoc_error_code_t */ code);
92 zend_class_entry* phongo_exception_from_phongo_domain(php_phongo_error_domain_t domain);
93 void              phongo_throw_exception(php_phongo_error_domain_t domain, const char* format, ...);
94 void              phongo_throw_exception_from_bson_error_t(bson_error_t* error);
95 void              phongo_throw_exception_from_bson_error_t_and_reply(bson_error_t* error, const bson_t* reply);
96 
97 /* This enum is used for processing options in phongo_execute_parse_options and
98  * selecting a libmongoc function to use in phongo_execute_command. The values
99  * are important, as READ and WRITE are also used as a bit field to determine
100  * whether readPreference, readConcern, and writeConcern options are parsed. */
101 typedef enum {
102 	PHONGO_OPTION_READ_CONCERN    = 0x01,
103 	PHONGO_OPTION_READ_PREFERENCE = 0x02,
104 	PHONGO_OPTION_WRITE_CONCERN   = 0x04,
105 	PHONGO_COMMAND_RAW            = 0x07,
106 	PHONGO_COMMAND_READ           = 0x03,
107 	PHONGO_COMMAND_WRITE          = 0x04,
108 	PHONGO_COMMAND_READ_WRITE     = 0x05,
109 } php_phongo_command_type_t;
110 
111 zend_object_handlers* phongo_get_std_object_handlers(void);
112 
113 void phongo_clientencryption_init(php_phongo_clientencryption_t* ce_obj, mongoc_client_t* client, zval* options);
114 void phongo_server_init(zval* return_value, mongoc_client_t* client, uint32_t server_id);
115 void phongo_session_init(zval* return_value, mongoc_client_session_t* client_session);
116 void phongo_readconcern_init(zval* return_value, const mongoc_read_concern_t* read_concern);
117 void phongo_readpreference_init(zval* return_value, const mongoc_read_prefs_t* read_prefs);
118 void phongo_writeconcern_init(zval* return_value, const mongoc_write_concern_t* write_concern);
119 bool phongo_execute_bulk_write(mongoc_client_t* client, const char* namespace, php_phongo_bulkwrite_t* bulk_write, zval* zwriteConcern, uint32_t server_id, zval* return_value);
120 bool phongo_execute_command(mongoc_client_t* client, php_phongo_command_type_t type, const char* db, zval* zcommand, zval* zreadPreference, uint32_t server_id, zval* return_value);
121 bool phongo_execute_query(mongoc_client_t* client, const char* namespace, zval* zquery, zval* zreadPreference, uint32_t server_id, zval* return_value);
122 
123 bool phongo_cursor_advance_and_check_for_error(mongoc_cursor_t* cursor);
124 
125 const mongoc_read_concern_t*  phongo_read_concern_from_zval(zval* zread_concern);
126 const mongoc_read_prefs_t*    phongo_read_preference_from_zval(zval* zread_preference);
127 const mongoc_write_concern_t* phongo_write_concern_from_zval(zval* zwrite_concern);
128 
129 php_phongo_server_description_type_t php_phongo_server_description_type(mongoc_server_description_t* sd);
130 
131 bool phongo_parse_read_preference(zval* options, zval** zreadPreference);
132 bool phongo_parse_session(zval* options, mongoc_client_t* client, bson_t* mongoc_opts, zval** zsession);
133 
134 zval* php_phongo_prep_legacy_option(zval* options, const char* key, bool* allocated);
135 void  php_phongo_prep_legacy_option_free(zval* options);
136 
137 void php_phongo_read_preference_prep_tagsets(zval* tagSets);
138 bool php_phongo_read_preference_tags_are_valid(const bson_t* tags);
139 
140 bool php_phongo_server_to_zval(zval* retval, mongoc_server_description_t* sd);
141 void php_phongo_read_concern_to_zval(zval* retval, const mongoc_read_concern_t* read_concern);
142 void php_phongo_write_concern_to_zval(zval* retval, const mongoc_write_concern_t* write_concern);
143 void php_phongo_cursor_to_zval(zval* retval, const mongoc_cursor_t* cursor);
144 
145 void phongo_manager_init(php_phongo_manager_t* manager, const char* uri_string, zval* options, zval* driverOptions);
146 int  php_phongo_set_monitoring_callbacks(mongoc_client_t* client);
147 
148 bool php_phongo_parse_int64(int64_t* retval, const char* data, size_t data_len);
149 
150 void phongo_clientencryption_create_datakey(php_phongo_clientencryption_t* clientencryption, zval* return_value, char* kms_provider, zval* options);
151 void phongo_clientencryption_encrypt(php_phongo_clientencryption_t* clientencryption, zval* zvalue, zval* zciphertext, zval* options);
152 void phongo_clientencryption_decrypt(php_phongo_clientencryption_t* clientencryption, zval* zciphertext, zval* zvalue);
153 
154 zend_bool phongo_writeerror_init(zval* return_value, bson_t* bson);
155 zend_bool phongo_writeconcernerror_init(zval* return_value, bson_t* bson);
156 
157 void php_phongo_client_reset_once(mongoc_client_t* client, int pid);
158 
159 #define PHONGO_CE_FINAL(ce)             \
160 	do {                                \
161 		ce->ce_flags |= ZEND_ACC_FINAL; \
162 	} while (0);
163 
164 #define PHONGO_CE_DISABLE_SERIALIZATION(ce)            \
165 	do {                                               \
166 		ce->serialize   = zend_class_serialize_deny;   \
167 		ce->unserialize = zend_class_unserialize_deny; \
168 	} while (0);
169 
170 #define PHONGO_GET_PROPERTY_HASH_INIT_PROPS(is_debug, intern, props, size) \
171 	do {                                                                   \
172 		if (is_debug) {                                                    \
173 			ALLOC_HASHTABLE(props);                                        \
174 			zend_hash_init((props), (size), NULL, ZVAL_PTR_DTOR, 0);       \
175 		} else if ((intern)->properties) {                                 \
176 			(props) = (intern)->properties;                                \
177 		} else {                                                           \
178 			ALLOC_HASHTABLE(props);                                        \
179 			zend_hash_init((props), (size), NULL, ZVAL_PTR_DTOR, 0);       \
180 			(intern)->properties = (props);                                \
181 		}                                                                  \
182 	} while (0);
183 
184 #define PHONGO_GET_PROPERTY_HASH_FREE_PROPS(is_debug, props) \
185 	do {                                                     \
186 		if (is_debug) {                                      \
187 			zend_hash_destroy((props));                      \
188 			FREE_HASHTABLE(props);                           \
189 		}                                                    \
190 	} while (0);
191 
192 #define PHONGO_ZVAL_CLASS_OR_TYPE_NAME(zv) (Z_TYPE(zv) == IS_OBJECT ? ZSTR_VAL(Z_OBJCE(zv)->name) : zend_get_type_by_const(Z_TYPE(zv)))
193 #define PHONGO_ZVAL_CLASS_OR_TYPE_NAME_P(zvp) PHONGO_ZVAL_CLASS_OR_TYPE_NAME(*(zvp))
194 
195 #define PHONGO_ZVAL_EXCEPTION_NAME(e) (ZSTR_VAL(e->ce->name))
196 
197 #define PHONGO_SET_CREATED_BY_PID(intern)          \
198 	do {                                           \
199 		(intern)->created_by_pid = (int) getpid(); \
200 	} while (0);
201 
202 #define PHONGO_RESET_CLIENT_IF_PID_DIFFERS(intern)               \
203 	do {                                                         \
204 		int pid = (int) getpid();                                \
205 		if ((intern)->created_by_pid != pid) {                   \
206 			php_phongo_client_reset_once((intern)->client, pid); \
207 		}                                                        \
208 	} while (0);
209 
210 #endif /* PHONGO_H */
211 
212 /*
213  * Local variables:
214  * tab-width: 4
215  * c-basic-offset: 4
216  * End:
217  * vim600: noet sw=4 ts=4 fdm=marker
218  * vim<600: noet sw=4 ts=4
219  */
220