1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/*
* Copyright (C) 2015-2020 "IoT.bzh"
* Author José Bollo <jose.bollo@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#if WITH_LEGACY_BINDING_V1 && WITH_DYNAMIC_BINDING
#define _GNU_SOURCE
#include <stdio.h>
#include <string.h>
#include <dlfcn.h>
#include <assert.h>
#include <stdarg.h>
#include <json-c/json.h>
#include <afb/afb-binding-v1.h>
#include "afb-api.h"
#include "afb-api-so-v1.h"
#include "afb-apiset.h"
#include "afb-export.h"
#include "afb-common.h"
#include "afb-context.h"
#include "afb-api-so.h"
#include "afb-xreq.h"
#include "afb-auth.h"
#include "verbose.h"
/*
* names of symbols
*/
static const char afb_api_so_v1_register[] = "afbBindingV1Register";
static const char afb_api_so_v1_service_init[] = "afbBindingV1ServiceInit";
static const char afb_api_so_v1_service_event[] = "afbBindingV1ServiceEvent";
static const struct afb_verb_desc_v1 *search(struct afb_binding_v1 *binding, const char *name)
{
const struct afb_verb_desc_v1 *verb;
verb = binding->v1.verbs;
while (verb->name && strcasecmp(verb->name, name))
verb++;
return verb->name ? verb : NULL;
}
void afb_api_so_v1_process_call(struct afb_binding_v1 *binding, struct afb_xreq *xreq)
{
const struct afb_verb_desc_v1 *verb;
verb = search(binding, xreq->request.called_verb);
afb_xreq_call_verb_v1(xreq, verb);
}
struct json_object *afb_api_so_v1_make_description_openAPIv3(struct afb_binding_v1 *binding, const char *apiname)
{
char buffer[256];
const struct afb_verb_desc_v1 *verb;
struct json_object *r, *f, *a, *i, *p, *g;
r = json_object_new_object();
json_object_object_add(r, "openapi", json_object_new_string("3.0.0"));
i = json_object_new_object();
json_object_object_add(r, "info", i);
json_object_object_add(i, "title", json_object_new_string(apiname));
json_object_object_add(i, "version", json_object_new_string("0.0.0"));
json_object_object_add(i, "description", json_object_new_string(binding->v1.info ?: apiname));
p = json_object_new_object();
json_object_object_add(r, "paths", p);
verb = binding->v1.verbs;
while (verb->name) {
buffer[0] = '/';
strncpy(buffer + 1, verb->name, sizeof buffer - 1);
buffer[sizeof buffer - 1] = 0;
f = json_object_new_object();
json_object_object_add(p, buffer, f);
g = json_object_new_object();
json_object_object_add(f, "get", g);
a = afb_auth_json_x1(verb->session);
if (a)
json_object_object_add(g, "x-permissions", a);
a = json_object_new_object();
json_object_object_add(g, "responses", a);
f = json_object_new_object();
json_object_object_add(a, "200", f);
json_object_object_add(f, "description", json_object_new_string(verb->info));
verb++;
}
return r;
}
int afb_api_so_v1_add(const char *path, void *handle, struct afb_apiset *declare_set, struct afb_apiset * call_set)
{
struct afb_binding_v1 *binding; /* descriptor */
struct afb_binding_v1 *(*register_function) (const struct afb_binding_interface_v1 *interface);
int (*init)(struct afb_service_x1 service);
void (*onevent)(const char *event, struct json_object *object);
struct afb_export *export;
/* retrieves the register function */
register_function = dlsym(handle, afb_api_so_v1_register);
if (!register_function)
return 0;
INFO("binding [%s] is a valid AFB binding V1", path);
/* allocates the description */
init = dlsym(handle, afb_api_so_v1_service_init);
onevent = dlsym(handle, afb_api_so_v1_service_event);
export = afb_export_create_v1(declare_set, call_set, path, init, onevent, path);
if (export == NULL) {
ERROR("binding [%s] creation failure...", path);
goto error;
}
binding = afb_export_register_v1(export, register_function);
if (binding == NULL) {
ERROR("binding [%s] register failure...", path);
goto error;
}
/* check the returned structure */
if (binding->type != AFB_BINDING_VERSION_1) {
ERROR("binding [%s] invalid type %d...", path, binding->type);
goto error;
}
if (binding->v1.prefix == NULL || *binding->v1.prefix == 0) {
ERROR("binding [%s] bad prefix...", path);
goto error;
}
if (!afb_api_is_valid_name(binding->v1.prefix)) {
ERROR("binding [%s] invalid prefix...", path);
goto error;
}
if (binding->v1.info == NULL || *binding->v1.info == 0) {
ERROR("binding [%s] bad description...", path);
goto error;
}
if (binding->v1.verbs == NULL) {
ERROR("binding [%s] no verbs...", path);
goto error;
}
/* records the binding */
if (!strcmp(path, afb_export_apiname(export))) {
if (afb_export_rename(export, binding->v1.prefix) < 0) {
ERROR("binding [%s] can't be renamed to %s", path, binding->v1.prefix);
goto error;
}
}
if (afb_export_declare(export, 0) < 0) {
ERROR("binding [%s] can't be registered...", path);
goto error;
}
INFO("binding %s loaded with API prefix %s", path, afb_export_apiname(export));
afb_export_unref(export);
return 1;
error:
afb_export_unref(export);
return -1;
}
#endif
|
