forked from libretro/RetroArch
-
Notifications
You must be signed in to change notification settings - Fork 2
/
task_http.c
323 lines (257 loc) · 7.9 KB
/
task_http.c
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
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
/* RetroArch - A frontend for libretro.
* Copyright (C) 2011-2016 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <net/net_http.h>
#include <queues/message_queue.h>
#include <lists/string_list.h>
#include <string/stdstring.h>
#include <compat/strl.h>
#include <file/file_path.h>
#include <file/archive_file.h>
#include <net/net_compat.h>
#include <retro_stat.h>
#include "../msg_hash.h"
#include "../verbosity.h"
#include "tasks_internal.h"
enum http_status_enum
{
HTTP_STATUS_POLL = 0,
HTTP_STATUS_CONNECTION_TRANSFER,
HTTP_STATUS_CONNECTION_TRANSFER_PARSE,
HTTP_STATUS_TRANSFER,
HTTP_STATUS_TRANSFER_PARSE,
HTTP_STATUS_TRANSFER_PARSE_FREE
};
typedef struct http_transfer_info
{
char url[255];
int progress;
} http_transfer_info_t;
typedef struct http_handle
{
struct
{
struct http_connection_t *handle;
transfer_cb_t cb;
char elem1[255];
char url[255];
} connection;
struct http_t *handle;
transfer_cb_t cb;
unsigned status;
bool error;
} http_handle_t;
static int task_http_con_iterate_transfer(http_handle_t *http)
{
if (!net_http_connection_iterate(http->connection.handle))
return -1;
return 0;
}
static int task_http_conn_iterate_transfer_parse(
http_handle_t *http)
{
if (net_http_connection_done(http->connection.handle))
{
if (http->connection.handle && http->connection.cb)
http->connection.cb(http, 0);
}
net_http_connection_free(http->connection.handle);
http->connection.handle = NULL;
return 0;
}
static int cb_http_conn_default(void *data_, size_t len)
{
http_handle_t *http = (http_handle_t*)data_;
if (!http)
return -1;
if (!network_init())
return -1;
http->handle = net_http_new(http->connection.handle);
if (!http->handle)
{
RARCH_ERR("[http] Could not create new HTTP session handle.\n");
http->error = true;
return -1;
}
http->cb = NULL;
return 0;
}
/**
* task_http_iterate_transfer:
*
* Resumes HTTP transfer update.
*
* Returns: 0 when finished, -1 when we should continue
* with the transfer on the next frame.
**/
static int task_http_iterate_transfer(retro_task_t *task)
{
http_handle_t *http = (http_handle_t*)task->state;
size_t pos = 0, tot = 0;
/* FIXME: This wouldn't be needed if we could wait for a timeout */
if (task_queue_ctl(TASK_QUEUE_CTL_IS_THREADED, NULL))
retro_sleep(1);
if (!net_http_update(http->handle, &pos, &tot))
{
task->progress = (tot == 0) ? -1 : (signed)(pos * 100 / tot);
return -1;
}
return 0;
}
static void task_http_transfer_handler(retro_task_t *task)
{
http_transfer_data_t *data = NULL;
http_handle_t *http = (http_handle_t*)task->state;
if (task->cancelled)
goto task_finished;
switch (http->status)
{
case HTTP_STATUS_CONNECTION_TRANSFER_PARSE:
task_http_conn_iterate_transfer_parse(http);
http->status = HTTP_STATUS_TRANSFER;
break;
case HTTP_STATUS_CONNECTION_TRANSFER:
if (!task_http_con_iterate_transfer(http))
http->status = HTTP_STATUS_CONNECTION_TRANSFER_PARSE;
break;
case HTTP_STATUS_TRANSFER:
if (!task_http_iterate_transfer(task))
goto task_finished;
break;
case HTTP_STATUS_TRANSFER_PARSE:
case HTTP_STATUS_POLL:
goto task_finished;
default:
break;
}
if (http->error)
goto task_finished;
return;
task_finished:
task->finished = true;
if (http->handle)
{
size_t len = 0;
char *tmp = (char*)net_http_data(http->handle, &len, false);
if (tmp && http->cb)
http->cb(tmp, len);
if (net_http_error(http->handle) || task->cancelled)
{
tmp = (char*)net_http_data(http->handle, &len, true);
if (tmp)
free(tmp);
if (task->cancelled)
task->error = strdup("Task cancelled.");
else
task->error = strdup("Download failed.");
}
else
{
data = (http_transfer_data_t*)calloc(1, sizeof(*data));
data->data = tmp;
data->len = len;
task->task_data = data;
}
net_http_delete(http->handle);
} else if (http->error)
task->error = strdup("Internal error.");
free(http);
}
static bool task_http_finder(retro_task_t *task, void *user_data)
{
http_handle_t *http = NULL;
if (!task || (task->handler != task_http_transfer_handler))
return false;
if (!user_data)
return false;
http = (http_handle_t*)task->state;
if (!http)
return false;
return string_is_equal(http->connection.url, (const char*)user_data);
}
static bool task_http_retriever(retro_task_t *task, void *data)
{
http_transfer_info_t *info = (http_transfer_info_t*)data;
/* Extract HTTP handle and return already if invalid */
http_handle_t *http = (http_handle_t *)task->state;
if (!http)
return false;
/* Fill HTTP info link */
strlcpy(info->url, http->connection.url, sizeof(info->url));
info->progress = task->progress;
return true;
}
void *task_push_http_transfer(const char *url, bool mute, const char *type,
retro_task_callback_t cb, void *user_data)
{
task_finder_data_t find_data;
char tmp[255];
struct http_connection_t *conn = NULL;
retro_task_t *t = NULL;
http_handle_t *http = NULL;
if (string_is_empty(url))
return NULL;
tmp[0] = '\0';
find_data.func = task_http_finder;
find_data.userdata = (void*)url;
/* Concurrent download of the same file is not allowed */
if (task_queue_ctl(TASK_QUEUE_CTL_FIND, &find_data))
{
RARCH_LOG("[http] '%s'' is already being downloaded.\n", url);
return NULL;
}
conn = net_http_connection_new(url);
if (!conn)
return NULL;
http = (http_handle_t*)calloc(1, sizeof(*http));
if (!http)
goto error;
http->connection.handle = conn;
http->connection.cb = &cb_http_conn_default;
if (type)
strlcpy(http->connection.elem1, type, sizeof(http->connection.elem1));
strlcpy(http->connection.url, url, sizeof(http->connection.url));
http->status = HTTP_STATUS_CONNECTION_TRANSFER;
t = (retro_task_t*)calloc(1, sizeof(*t));
if (!t)
goto error;
t->handler = task_http_transfer_handler;
t->state = http;
t->mute = mute;
t->callback = cb;
t->user_data = user_data;
t->progress = -1;
snprintf(tmp, sizeof(tmp), "%s '%s'",
msg_hash_to_str(MSG_DOWNLOADING), path_basename(url));
t->title = strdup(tmp);
task_queue_ctl(TASK_QUEUE_CTL_PUSH, t);
return t;
error:
if (conn)
net_http_connection_free(conn);
if (http)
free(http);
return NULL;
}
task_retriever_info_t *http_task_get_transfer_list(void)
{
task_retriever_data_t retrieve_data;
/* Fill retrieve data */
retrieve_data.handler = task_http_transfer_handler;
retrieve_data.element_size = sizeof(http_transfer_info_t);
retrieve_data.func = task_http_retriever;
/* Build list of current HTTP transfers and return it */
task_queue_ctl(TASK_QUEUE_CTL_RETRIEVE, &retrieve_data);
return retrieve_data.list;
}