Makefile- atomic.h
- date.c
- date.h
- io.c
- io.h
- libxattr.c
- libxattr.h
- netbuf.c
- object.c
- object.h
- objs.mk
- pblock.c
- pblock.h
- platform.h
- plist.c
- plist.h
- plist_pvt.h
- plistdef.h
- pool.c
- pool.h
- pool_pvt.h
- shexp.c
- shexp.h
- strbuf.c
- strbuf.h
- system.c
- systems.h
- systhr.c
- systhr.h
- thrpool.c
- thrpool.h
- uri.c
- util.c
- util.h
- writer.c
- writer.h
1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2013 Olaf Wintermann. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #ifndef OBJECT_H
30 #define OBJECT_H
31
32 #include "../public/nsapi.h"
33 #include "pool.h"
34
35 #include <inttypes.h>
36 #include <cx/list.h>
37
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41
42 // TODO: Enum auslagern in andere Datei?
43 enum RequestStage {
44 NSAPIAuthTrans = 0,
45 NSAPINameTrans,
46 NSAPIPathCheck,
47 NSAPIObjectType,
48 NSAPIService,
49 NSAPIError,
50 NSAPIAddLog,
51 REQ_FINISH,
52 NUM_NSAPI_TYPES
53 };
54 typedef enum RequestStage RequestStage;
55
56 typedef struct Condition Condition;
57 typedef int8_t ConditionResult;
58 typedef struct Expression Expression;
59 typedef enum OperandType OperandType;
60 typedef enum Operator Operator;
61 typedef enum VarType VarType;
62
63 typedef struct NSAPIContext NSAPIContext;
64 typedef struct HTTPObjectConfig HTTPObjectConfig;
65
66 struct directive {
67 FuncStruct *func;
68 pblock *param;
69 Condition *cond;
70 };
71
72 struct dtable {
73 directive **dirs;
74 int ndir;
75 int alloc;
76 };
77
78 struct httpd_object {
79 pool_handle_t *pool;
80 char *name;
81 char *path;
82 dtable *dt;
83 int nd;
84 };
85
86 struct httpd_objset {
87 httpd_object **obj;
88 int pos;
89 };
90
91 struct Condition {
92 Condition *parent;
93 Condition *ifnot;
94 Expression *expression;
95 int depth;
96 int index; // used by NSAPIContext to link expression with result
97 };
98
99 struct Expression {
100 // TODO
101 int n;
102 };
103
104
105 struct NSAPIContext{
106 HTTPObjectConfig *conf;
107
108 ConditionResult **results;
109 int nres;
110 int nmaxres;
111
112 //httpd_objset *objset;
113 int last_req_code;
114
115 int objset_index;
116 int dtable_index;
117 };
118
119 struct HTTPObjectConfig {
120 httpd_object **objects;
121 int nobj;
122 pool_handle_t *pool;
123 uint32_t ref; // reference counter
124 };
125
126
127
128 typedef struct NSAPIExpression NSAPIExpression;
129 typedef enum NSAPIExpressionType NSAPIExpressionType;
130 typedef enum NSAPIExpressionOperator NSAPIExpressionOperator;
131
132 enum NSAPIExpressionType {
133 NSAPI_EXPRESSION_BOOL = 0,
134 NSAPI_EXPRESSION_INT,
135 NSAPI_EXPRESSION_DOUBLE,
136 NSAPI_EXPRESSION_STRING,
137 NSAPI_EXPRESSION_VARIABLE,
138 NSAPI_EXPRESSION_LOGICAL,
139 NSAPI_EXPRESSION_UNARY,
140 NSAPI_EXPRESSION_BINARY,
141 NSAPI_EXPRESSION_IDENTIFIER
142 };
143
144 enum NSAPIExpressionOperator {
145 NSAPI_EXPRESSION_NOOP = 0,
146 NSAPI_EXPRESSION_CALL,
147 NSAPI_EXPRESSION_ARG,
148 NSAPI_EXPRESSION_WILDCARD_MATCH,
149 NSAPI_EXPRESSION_REGEX_MATCH,
150 NSAPI_EXPRESSION_REGEX_MISMATCH,
151 NSAPI_EXPRESSION_EQ,
152 NSAPI_EXPRESSION_NEQ,
153 NSAPI_EXPRESSION_GT,
154 NSAPI_EXPRESSION_LT,
155 NSAPI_EXPRESSION_GE,
156 NSAPI_EXPRESSION_LE,
157 NSAPI_EXPRESSION_ADD,
158 NSAPI_EXPRESSION_SUB,
159 NSAPI_EXPRESSION_MUL,
160 NSAPI_EXPRESSION_DIV,
161 NSAPI_EXPRESSION_MOD,
162 NSAPI_EXPRESSION_STRCAT,
163 NSAPI_EXPRESSION_NOT,
164 NSAPI_EXPRESSION_AND,
165 NSAPI_EXPRESSION_OR,
166 NSAPI_EXPRESSION_XOR,
167 NSAPI_EXPRESSION_VALUE_DEFINED,
168 NSAPI_EXPRESSION_DIR_EXISTS,
169 NSAPI_EXPRESSION_FILE_DIR_EXISTS,
170 NSAPI_EXPRESSION_FILE_EXISTS,
171 NSAPI_EXPRESSION_SYMLINK_EXISTS,
172 NSAPI_EXPRESSION_FILE_READABLE,
173 NSAPI_EXPRESSION_FILE_SIZE
174 };
175
176 union NSAPIExpressionValue {
177 cxstring str;
178 cxstring var;
179 cxstring identifier;
180 int64_t i;
181 double f;
182 int b;
183 };
184
185 struct NSAPIExpression {
186 // value.ptr is not null if
187 // type is one of (bool, int, string): literal text
188 // type is variable: variable name
189 union NSAPIExpressionValue value;
190
191 NSAPIExpressionType type;
192
193 NSAPIExpressionOperator operator;
194
195 /*
196 * left/single operand
197 */
198 NSAPIExpression *left;
199
200 /*
201 * right operand or NULL
202 */
203 NSAPIExpression *right;
204 };
205
206
207
208 /*
209 * creates a new httpd_object
210 */
211 httpd_object* object_new(pool_handle_t *pool, char *name);
212
213 /*
214 * frees an httpd_object
215 */
216 void object_free(httpd_object *obj);
217
218 /*
219 * adds a directive to the object with the type dt (enum RequestPhase)
220 */
221 int object_add_directive(httpd_object *obj, directive *dir, int dt);
222
223 /*
224 * get a list of all directives with a specific type
225 */
226 #define object_get_dtable(obj,type) &obj->dt[type];
227
228
229
230 /*
231 * creates a new httpd_objset
232 */
233 httpd_objset* objset_create(pool_handle_t *pool);
234
235 /*
236 * adds a object to the objset
237 */
238 void objset_add_object(pool_handle_t *p, httpd_objset *os, httpd_object *obj);
239
240
241 /*
242 * creates a new HTTPObjectConfig
243 */
244 // TODO
245
246 /*
247 * adds an object to the object configuration
248 */
249 void httpobjconf_add_object(HTTPObjectConfig *conf, httpd_object *obj);
250
251
252
253 /*
254 * prepares the NSAPI context for the next request stage
255 */
256 void nsapi_context_next_stage(NSAPIContext *context);
257
258
259 /*
260 * parses an expression from a list of cxstring tokens and compiles the
261 * expression into an Expression object
262 *
263 * tokens: CxList that contains cxstring
264 */
265 Expression* condition_create(pool_handle_t *pool, CxList *tokens);
266
267 NSAPIExpression* expr_parse_logical_expr(pool_handle_t *pool, CxList *tokens, size_t *pos);
268
269 int condition_evaluate(Condition *condition, Session *sn, Request *rq);
270
271
272 #ifdef __cplusplus
273 }
274 #endif
275
276 #endif /* OBJECT_H */
277
278