1 | #include "events.hpp" |
2 | |
3 | #include <nlohmann/json.hpp> |
4 | |
5 | #include "mtx/events/encrypted.hpp" |
6 | #include "mtx/events/unknown.hpp" |
7 | |
8 | namespace mtx::events { |
9 | namespace detail { |
10 | |
11 | template<typename, typename = void> |
12 | struct can_edit : std::false_type |
13 | {}; |
14 | |
15 | template<typename Content> |
16 | struct can_edit<Content, std::void_t<decltype(Content::relations)>> |
17 | : std::is_same<decltype(Content::relations), mtx::common::Relations> |
18 | {}; |
19 | } |
20 | |
21 | template<class Content> |
22 | [[gnu::used, gnu::retain]] void |
23 | to_json(nlohmann::json &obj, const Event<Content> &event) |
24 | { |
25 | obj["content" ] = event.content; |
26 | obj["sender" ] = event.sender; |
27 | if constexpr (std::is_same_v<Unknown, Content>) |
28 | obj["type" ] = event.content.type; |
29 | else |
30 | obj["type" ] = ::mtx::events::to_string(type: event.type); |
31 | } |
32 | |
33 | template<class Content> |
34 | [[gnu::used, gnu::retain]] void |
35 | from_json(const nlohmann::json &obj, Event<Content> &event) |
36 | { |
37 | if (!std::is_same_v<Content, mtx::events::msg::Encrypted> && |
38 | obj.at(key: "content" ).contains(key: "m.new_content" )) { |
39 | auto new_content = obj.at(key: "content" ).at(key: "m.new_content" ); |
40 | |
41 | if (obj.at(key: "content" ).contains(key: "m.relates_to" )) |
42 | new_content["m.relates_to" ] = obj.at(key: "content" ).at(key: "m.relates_to" ); |
43 | if (obj.at(key: "content" ).at(key: "m.new_content" ).contains(key: "m.relates_to" )) |
44 | new_content["m.new_content" ]["m.relates_to" ] = |
45 | obj.at(key: "content" ).at(key: "m.new_content" ).at(key: "m.relates_to" ); |
46 | if (obj.at(key: "content" ).contains(key: "im.nheko.relations.v1.relations" )) |
47 | new_content["im.nheko.relations.v1.relations" ] = |
48 | obj.at(key: "content" ).at(key: "im.nheko.relations.v1.relations" ); |
49 | |
50 | event.content = new_content.get<Content>(); |
51 | } else if (obj.at(key: "content" ).is_object()) { |
52 | event.content = obj.at(key: "content" ).get<Content>(); |
53 | } else { |
54 | event.content = {}; |
55 | } |
56 | |
57 | auto type = obj.at(key: "type" ).get<std::string>(); |
58 | if (type.size() > 255) { |
59 | throw std::out_of_range("Type exceeds 255 bytes" ); |
60 | } |
61 | event.type = getEventType(type); |
62 | |
63 | event.sender = obj.value(key: "sender" , default_value: "" ); |
64 | |
65 | if (event.sender.size() > 255) { |
66 | throw std::out_of_range("Sender exceeds 255 bytes" ); |
67 | } |
68 | |
69 | if constexpr (std::is_same_v<Unknown, Content>) |
70 | event.content.type = obj.at(key: "type" ).get<std::string>(); |
71 | } |
72 | |
73 | template<class Content> |
74 | [[gnu::used, gnu::retain]] void |
75 | from_json(const nlohmann::json &obj, DeviceEvent<Content> &event) |
76 | { |
77 | Event<Content> base_event = event; |
78 | from_json(obj, base_event); |
79 | event.content = base_event.content; |
80 | event.type = base_event.type; |
81 | event.sender = obj.at(key: "sender" ).get<std::string>(); |
82 | } |
83 | |
84 | template<class Content> |
85 | [[gnu::used, gnu::retain]] void |
86 | to_json(nlohmann::json &obj, const DeviceEvent<Content> &event) |
87 | { |
88 | Event<Content> base_event = event; |
89 | to_json(obj, base_event); |
90 | |
91 | obj["sender" ] = event.sender; |
92 | } |
93 | |
94 | void |
95 | from_json(const nlohmann::json &obj, UnsignedData &data) |
96 | { |
97 | if (obj.find(key: "age" ) != obj.end()) |
98 | data.age = obj.at(key: "age" ).get<uint64_t>(); |
99 | |
100 | if (obj.find(key: "transaction_id" ) != obj.end()) |
101 | data.transaction_id = obj.at(key: "transaction_id" ).get<std::string>(); |
102 | |
103 | if (obj.find(key: "prev_sender" ) != obj.end()) |
104 | data.prev_sender = obj.at(key: "prev_sender" ).get<std::string>(); |
105 | |
106 | if (obj.find(key: "replaces_state" ) != obj.end()) |
107 | data.replaces_state = obj.at(key: "replaces_state" ).get<std::string>(); |
108 | |
109 | if (obj.find(key: "redacted_by" ) != obj.end()) |
110 | data.redacted_by = obj.at(key: "redacted_by" ).get<std::string>(); |
111 | |
112 | if (obj.find(key: "redacted_because" ) != obj.end()) |
113 | data.redacted_because = |
114 | obj.at(key: "redacted_because" ).get<Event<mtx::events::msg::Redaction>>(); |
115 | } |
116 | |
117 | void |
118 | to_json(nlohmann::json &obj, const UnsignedData &event) |
119 | { |
120 | if (!event.prev_sender.empty()) |
121 | obj["prev_sender" ] = event.prev_sender; |
122 | |
123 | if (!event.transaction_id.empty()) |
124 | obj["transaction_id" ] = event.transaction_id; |
125 | |
126 | if (!event.replaces_state.empty()) |
127 | obj["replaces_state" ] = event.replaces_state; |
128 | |
129 | if (event.age != 0) |
130 | obj["age" ] = event.age; |
131 | |
132 | if (!event.redacted_by.empty()) |
133 | obj["redacted_by" ] = event.redacted_by; |
134 | |
135 | if (event.redacted_because) |
136 | obj["redacted_because" ] = *event.redacted_because; |
137 | } |
138 | |
139 | template<class Content> |
140 | [[gnu::used, gnu::retain]] void |
141 | from_json(const nlohmann::json &obj, StrippedEvent<Content> &event) |
142 | { |
143 | Event<Content> &base = event; |
144 | from_json(obj, base); |
145 | |
146 | event.state_key = obj.at(key: "state_key" ).get<std::string>(); |
147 | |
148 | if (event.state_key.size() > 255) { |
149 | throw std::out_of_range("State key exceeds 255 bytes" ); |
150 | } |
151 | } |
152 | |
153 | template<class Content> |
154 | [[gnu::used, gnu::retain]] void |
155 | to_json(nlohmann::json &obj, const StrippedEvent<Content> &event) |
156 | { |
157 | Event<Content> base_event = event; |
158 | to_json(obj, base_event); |
159 | |
160 | obj["state_key" ] = event.state_key; |
161 | } |
162 | |
163 | template<class Content> |
164 | [[gnu::used, gnu::retain]] void |
165 | from_json(const nlohmann::json &obj, RoomEvent<Content> &event) |
166 | { |
167 | Event<Content> &base = event; |
168 | from_json(obj, base); |
169 | |
170 | event.event_id = obj.at(key: "event_id" ).get<std::string>(); |
171 | |
172 | if (event.event_id.size() > 255) { |
173 | throw std::out_of_range("Event id exceeds 255 bytes" ); |
174 | } |
175 | |
176 | event.origin_server_ts = obj.at(key: "origin_server_ts" ).get<uint64_t>(); |
177 | |
178 | // SPEC_BUG: Not present in the state array returned by /sync. |
179 | if (obj.find(key: "room_id" ) != obj.end()) |
180 | event.room_id = obj.at(key: "room_id" ).get<std::string>(); |
181 | |
182 | if (event.room_id.size() > 255) { |
183 | throw std::out_of_range("Room id exceeds 255 bytes" ); |
184 | } |
185 | |
186 | if (obj.find(key: "unsigned" ) != obj.end()) |
187 | event.unsigned_data = obj.at(key: "unsigned" ).get<UnsignedData>(); |
188 | } |
189 | |
190 | template<class Content> |
191 | [[gnu::used, gnu::retain]] void |
192 | to_json(nlohmann::json &obj, const RoomEvent<Content> &event) |
193 | { |
194 | Event<Content> base_event = event; |
195 | to_json(obj, base_event); |
196 | |
197 | if (!event.room_id.empty()) |
198 | obj["room_id" ] = event.room_id; |
199 | |
200 | obj["event_id" ] = event.event_id; |
201 | obj["unsigned" ] = event.unsigned_data; |
202 | obj["origin_server_ts" ] = event.origin_server_ts; |
203 | } |
204 | |
205 | template<class Content> |
206 | [[gnu::used, gnu::retain]] void |
207 | to_json(nlohmann::json &obj, const StateEvent<Content> &event) |
208 | { |
209 | RoomEvent<Content> base_event = event; |
210 | to_json(obj, base_event); |
211 | |
212 | obj["state_key" ] = event.state_key; |
213 | } |
214 | |
215 | template<class Content> |
216 | [[gnu::used, gnu::retain]] void |
217 | from_json(const nlohmann::json &obj, StateEvent<Content> &event) |
218 | { |
219 | RoomEvent<Content> &base = event; |
220 | from_json(obj, base); |
221 | |
222 | event.state_key = obj.at(key: "state_key" ).get<std::string>(); |
223 | |
224 | if (event.state_key.size() > 255) { |
225 | throw std::out_of_range("State key exceeds 255 bytes" ); |
226 | } |
227 | } |
228 | |
229 | template<class Content> |
230 | [[gnu::used, gnu::retain]] void |
231 | to_json(nlohmann::json &obj, const RedactionEvent<Content> &event) |
232 | { |
233 | RoomEvent<Content> base_event = event; |
234 | to_json(obj, base_event); |
235 | |
236 | obj["redacts" ] = event.redacts; |
237 | } |
238 | |
239 | template<class Content> |
240 | [[gnu::used, gnu::retain]] void |
241 | from_json(const nlohmann::json &obj, RedactionEvent<Content> &event) |
242 | { |
243 | RoomEvent<Content> &base = event; |
244 | from_json(obj, base); |
245 | |
246 | event.redacts = obj.at(key: "redacts" ).get<std::string>(); |
247 | } |
248 | |
249 | template<class Content> |
250 | [[gnu::used, gnu::retain]] void |
251 | to_json(nlohmann::json &obj, const EncryptedEvent<Content> &event) |
252 | { |
253 | RoomEvent<Content> base_event = event; |
254 | to_json(obj, base_event); |
255 | } |
256 | |
257 | template<class Content> |
258 | [[gnu::used, gnu::retain]] void |
259 | from_json(const nlohmann::json &obj, EncryptedEvent<Content> &event) |
260 | { |
261 | RoomEvent<Content> &base = event; |
262 | from_json(obj, base); |
263 | } |
264 | |
265 | template<class Content> |
266 | [[gnu::used, gnu::retain]] void |
267 | to_json(nlohmann::json &obj, const EphemeralEvent<Content> &event) |
268 | { |
269 | obj["content" ] = event.content; |
270 | if constexpr (std::is_same_v<Unknown, Content>) |
271 | obj["type" ] = event.content.type; |
272 | else |
273 | obj["type" ] = ::mtx::events::to_string(type: event.type); |
274 | |
275 | if (!event.room_id.empty()) |
276 | obj["room_id" ] = event.room_id; |
277 | } |
278 | |
279 | template<class Content> |
280 | [[gnu::used, gnu::retain]] void |
281 | from_json(const nlohmann::json &obj, EphemeralEvent<Content> &event) |
282 | { |
283 | event.content = obj.at(key: "content" ).get<Content>(); |
284 | event.type = getEventType(type: obj.at(key: "type" ).get<std::string>()); |
285 | if constexpr (std::is_same_v<Unknown, Content>) |
286 | event.content.type = obj.at(key: "type" ).get<std::string>(); |
287 | |
288 | if (obj.contains(key: "room_id" )) |
289 | event.room_id = obj.at(key: "room_id" ).get<std::string>(); |
290 | |
291 | if (event.room_id.size() > 255) { |
292 | throw std::out_of_range("Room id exceeds 255 bytes" ); |
293 | } |
294 | } |
295 | |
296 | } |
297 | |