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
|
/*************************************************************************/
/* jsonrpc.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "jsonrpc.h"
#include "core/io/json.h"
JSONRPC::JSONRPC() {
}
JSONRPC::~JSONRPC() {
}
void JSONRPC::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_scope", "scope", "target"), &JSONRPC::set_scope);
ClassDB::bind_method(D_METHOD("process_action", "action", "recurse"), &JSONRPC::process_action, DEFVAL(false));
ClassDB::bind_method(D_METHOD("process_string", "action"), &JSONRPC::process_string);
ClassDB::bind_method(D_METHOD("make_request", "method", "params", "id"), &JSONRPC::make_request);
ClassDB::bind_method(D_METHOD("make_response", "result", "id"), &JSONRPC::make_response);
ClassDB::bind_method(D_METHOD("make_notification", "method", "params"), &JSONRPC::make_notification);
ClassDB::bind_method(D_METHOD("make_response_error", "code", "message", "id"), &JSONRPC::make_response_error, DEFVAL(Variant()));
BIND_ENUM_CONSTANT(PARSE_ERROR);
BIND_ENUM_CONSTANT(INVALID_REQUEST);
BIND_ENUM_CONSTANT(METHOD_NOT_FOUND);
BIND_ENUM_CONSTANT(INVALID_PARAMS);
BIND_ENUM_CONSTANT(INTERNAL_ERROR);
}
Dictionary JSONRPC::make_response_error(int p_code, const String &p_message, const Variant &p_id) const {
Dictionary dict;
dict["jsonrpc"] = "2.0";
Dictionary err;
err["code"] = p_code;
err["message"] = p_message;
dict["error"] = err;
dict["id"] = p_id;
return dict;
}
Dictionary JSONRPC::make_response(const Variant &p_value, const Variant &p_id) {
Dictionary dict;
dict["jsonrpc"] = "2.0";
dict["id"] = p_id;
dict["result"] = p_value;
return dict;
}
Dictionary JSONRPC::make_notification(const String &p_method, const Variant &p_params) {
Dictionary dict;
dict["jsonrpc"] = "2.0";
dict["method"] = p_method;
dict["params"] = p_params;
return dict;
}
Dictionary JSONRPC::make_request(const String &p_method, const Variant &p_params, const Variant &p_id) {
Dictionary dict;
dict["jsonrpc"] = "2.0";
dict["method"] = p_method;
dict["params"] = p_params;
dict["id"] = p_id;
return dict;
}
Variant JSONRPC::process_action(const Variant &p_action, bool p_process_arr_elements) {
Variant ret;
if (p_action.get_type() == Variant::DICTIONARY) {
Dictionary dict = p_action;
String method = dict.get("method", "");
Array args;
if (dict.has("params")) {
Variant params = dict.get("params", Variant());
if (params.get_type() == Variant::ARRAY) {
args = params;
} else {
args.push_back(params);
}
}
Object *object = this;
if (method_scopes.has(method.get_base_dir())) {
object = method_scopes[method.get_base_dir()];
method = method.get_file();
}
Variant id;
if (dict.has("id")) {
id = dict["id"];
}
if (object == NULL || !object->has_method(method)) {
ret = make_response_error(JSONRPC::METHOD_NOT_FOUND, "Method not found: " + method, id);
} else {
Variant call_ret = object->callv(method, args);
if (id.get_type() != Variant::NIL) {
ret = make_response(call_ret, id);
}
}
} else if (p_action.get_type() == Variant::ARRAY && p_process_arr_elements) {
Array arr = p_action;
int size = arr.size();
if (size) {
Array arr_ret;
for (int i = 0; i < size; i++) {
const Variant &var = arr.get(i);
arr_ret.push_back(process_action(var));
}
ret = arr_ret;
} else {
ret = make_response_error(JSONRPC::INVALID_REQUEST, "Invalid Request");
}
} else {
ret = make_response_error(JSONRPC::INVALID_REQUEST, "Invalid Request");
}
return ret;
}
String JSONRPC::process_string(const String &p_input) {
if (p_input.empty()) return String();
Variant ret;
Variant input;
String err_message;
int err_line;
if (OK != JSON::parse(p_input, input, err_message, err_line)) {
ret = make_response_error(JSONRPC::PARSE_ERROR, "Parse error");
} else {
ret = process_action(input, true);
}
if (ret.get_type() == Variant::NIL) {
return "";
}
return JSON::print(ret);
}
void JSONRPC::set_scope(const String &p_scope, Object *p_obj) {
method_scopes[p_scope] = p_obj;
}
|
