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 #ifdef __cplusplus
36 extern "C" {
37 #endif
38
39 // TODO: Enum auslagern in andere Datei?
40 enum RequestStage {
41 NSAPIAuthTrans = 0,
42 NSAPINameTrans,
43 NSAPIPathCheck,
44 NSAPIObjectType,
45 NSAPIService,
46 NSAPIError,
47 NSAPIAddLog,
48 REQ_FINISH,
49 NUM_NSAPI_TYPES
50 };
51 typedef enum RequestStage RequestStage;
52
53 typedef struct Condition Condition;
54 typedef int8_t ConditionResult;
55 typedef struct Expression Expression;
56 typedef enum OperandType OperandType;
57 typedef enum Operator Operator;
58 typedef enum VarType VarType;
59
60 typedef struct NSAPIContext NSAPIContext;
61 typedef struct HTTPObjectConfig HTTPObjectConfig;
62
63 struct directive {
64 FuncStruct *func;
65 pblock *param;
66 Condition *cond;
67 };
68
69 struct dtable {
70 directive **dirs;
71 int ndir;
72 };
73
74 struct httpd_object {
75 pool_handle_t *pool;
76 char *name;
77 char *path;
78 dtable *dt;
79 int nd;
80 };
81
82 struct httpd_objset {
83 httpd_object **obj;
84 int pos;
85 };
86
87 struct Condition {
88 Condition *parent;
89 Expression *expression;
90 int index; // used by NSAPIContext to link expression with result
91 };
92
93 struct Expression {
94 // TODO
95 int n;
96 };
97
98
99 struct NSAPIContext{
100 HTTPObjectConfig *conf;
101
102 ConditionResult **results;
103 int nres;
104 int nmaxres;
105
106 //httpd_objset *objset;
107 int last_req_code;
108
109 int objset_index;
110 int dtable_index;
111 };
112
113 struct HTTPObjectConfig {
114 httpd_object **objects;
115 int nobj;
116 pool_handle_t *pool;
117 uint32_t ref; // reference counter
118 };
119
120 /*
121 * creates a new httpd_object
122 */
123 httpd_object* object_new(pool_handle_t *pool, char *name);
124
125 /*
126 * frees an httpd_object
127 */
128 void object_free(httpd_object *obj);
129
130 /*
131 * adds a directive to the object with the type dt (enum RequestPhase)
132 */
133 void object_add_directive(httpd_object *obj, directive *dir, int dt);
134
135 /*
136 * get a list of all directives with a specific type
137 */
138 #define object_get_dtable(obj,type) &obj->dt[type];
139
140
141
142 /*
143 * creates a new httpd_objset
144 */
145 httpd_objset* objset_create(pool_handle_t *pool);
146
147 /*
148 * adds a object to the objset
149 */
150 void objset_add_object(pool_handle_t *p, httpd_objset *os, httpd_object *obj);
151
152
153 /*
154 * creates a new HTTPObjectConfig
155 */
156 // TODO
157
158 /*
159 * adds an object to the object configuration
160 */
161 void httpobjconf_add_object(HTTPObjectConfig *conf, httpd_object *obj);
162
163
164
165 /*
166 * prepares the NSAPI context for the next request stage
167 */
168 void nsapi_context_next_stage(NSAPIContext *context);
169
170 Condition* condition_from_str(pool_handle_t *pool, char *expr, size_t len);
171 Expression* expression_from_str(pool_handle_t *pool, char *expr, size_t len);
172
173 int condition_evaluate(Condition *condition, Session *sn, Request *rq);
174
175
176 #ifdef __cplusplus
177 }
178 #endif
179
180 #endif /* OBJECT_H */
181
182