1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
9 * Copyright (C) Howard Chu, <hyc@highlandsun.com>
10 *
11 * This software is licensed as described in the file COPYING, which
12 * you should have received as part of this distribution. The terms
13 * are also available at https://curl.se/docs/copyright.html.
14 *
15 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
16 * copies of the Software, and permit persons to whom the Software is
17 * furnished to do so, under the terms of the COPYING file.
18 *
19 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
20 * KIND, either express or implied.
21 *
22 * SPDX-License-Identifier: curl
23 *
24 ***************************************************************************/
25
26 #include "curl_setup.h"
27
28 #ifdef USE_LIBRTMP
29
30 #include "curl_rtmp.h"
31 #include "urldata.h"
32 #include "nonblock.h" /* for curlx_nonblock */
33 #include "progress.h" /* for Curl_pgrsSetUploadSize */
34 #include "transfer.h"
35 #include "warnless.h"
36 #include <curl/curl.h>
37 #include <librtmp/rtmp.h>
38
39 /* The last 3 #include files should be in this order */
40 #include "curl_printf.h"
41 #include "curl_memory.h"
42 #include "memdebug.h"
43
44 #if defined(_WIN32) && !defined(USE_LWIPSOCK)
45 #define setsockopt(a,b,c,d,e) (setsockopt)(a,b,c,(const char *)d,(int)e)
46 #define SET_RCVTIMEO(tv,s) int tv = s*1000
47 #elif defined(LWIP_SO_SNDRCVTIMEO_NONSTANDARD)
48 #define SET_RCVTIMEO(tv,s) int tv = s*1000
49 #else
50 #define SET_RCVTIMEO(tv,s) struct timeval tv = {s,0}
51 #endif
52
53 #define DEF_BUFTIME (2*60*60*1000) /* 2 hours */
54
55 static CURLcode rtmp_setup_connection(struct Curl_easy *data,
56 struct connectdata *conn);
57 static CURLcode rtmp_do(struct Curl_easy *data, bool *done);
58 static CURLcode rtmp_done(struct Curl_easy *data, CURLcode, bool premature);
59 static CURLcode rtmp_connect(struct Curl_easy *data, bool *done);
60 static CURLcode rtmp_disconnect(struct Curl_easy *data,
61 struct connectdata *conn, bool dead);
62
63 static Curl_recv rtmp_recv;
64 static Curl_send rtmp_send;
65
66 /*
67 * RTMP protocol handler.h, based on https://rtmpdump.mplayerhq.hu
68 */
69
70 const struct Curl_handler Curl_handler_rtmp = {
71 "rtmp", /* scheme */
72 rtmp_setup_connection, /* setup_connection */
73 rtmp_do, /* do_it */
74 rtmp_done, /* done */
75 ZERO_NULL, /* do_more */
76 rtmp_connect, /* connect_it */
77 ZERO_NULL, /* connecting */
78 ZERO_NULL, /* doing */
79 ZERO_NULL, /* proto_getsock */
80 ZERO_NULL, /* doing_getsock */
81 ZERO_NULL, /* domore_getsock */
82 ZERO_NULL, /* perform_getsock */
83 rtmp_disconnect, /* disconnect */
84 ZERO_NULL, /* write_resp */
85 ZERO_NULL, /* write_resp_hd */
86 ZERO_NULL, /* connection_check */
87 ZERO_NULL, /* attach connection */
88 PORT_RTMP, /* defport */
89 CURLPROTO_RTMP, /* protocol */
90 CURLPROTO_RTMP, /* family */
91 PROTOPT_NONE /* flags */
92 };
93
94 const struct Curl_handler Curl_handler_rtmpt = {
95 "rtmpt", /* scheme */
96 rtmp_setup_connection, /* setup_connection */
97 rtmp_do, /* do_it */
98 rtmp_done, /* done */
99 ZERO_NULL, /* do_more */
100 rtmp_connect, /* connect_it */
101 ZERO_NULL, /* connecting */
102 ZERO_NULL, /* doing */
103 ZERO_NULL, /* proto_getsock */
104 ZERO_NULL, /* doing_getsock */
105 ZERO_NULL, /* domore_getsock */
106 ZERO_NULL, /* perform_getsock */
107 rtmp_disconnect, /* disconnect */
108 ZERO_NULL, /* write_resp */
109 ZERO_NULL, /* write_resp_hd */
110 ZERO_NULL, /* connection_check */
111 ZERO_NULL, /* attach connection */
112 PORT_RTMPT, /* defport */
113 CURLPROTO_RTMPT, /* protocol */
114 CURLPROTO_RTMPT, /* family */
115 PROTOPT_NONE /* flags */
116 };
117
118 const struct Curl_handler Curl_handler_rtmpe = {
119 "rtmpe", /* scheme */
120 rtmp_setup_connection, /* setup_connection */
121 rtmp_do, /* do_it */
122 rtmp_done, /* done */
123 ZERO_NULL, /* do_more */
124 rtmp_connect, /* connect_it */
125 ZERO_NULL, /* connecting */
126 ZERO_NULL, /* doing */
127 ZERO_NULL, /* proto_getsock */
128 ZERO_NULL, /* doing_getsock */
129 ZERO_NULL, /* domore_getsock */
130 ZERO_NULL, /* perform_getsock */
131 rtmp_disconnect, /* disconnect */
132 ZERO_NULL, /* write_resp */
133 ZERO_NULL, /* write_resp_hd */
134 ZERO_NULL, /* connection_check */
135 ZERO_NULL, /* attach connection */
136 PORT_RTMP, /* defport */
137 CURLPROTO_RTMPE, /* protocol */
138 CURLPROTO_RTMPE, /* family */
139 PROTOPT_NONE /* flags */
140 };
141
142 const struct Curl_handler Curl_handler_rtmpte = {
143 "rtmpte", /* scheme */
144 rtmp_setup_connection, /* setup_connection */
145 rtmp_do, /* do_it */
146 rtmp_done, /* done */
147 ZERO_NULL, /* do_more */
148 rtmp_connect, /* connect_it */
149 ZERO_NULL, /* connecting */
150 ZERO_NULL, /* doing */
151 ZERO_NULL, /* proto_getsock */
152 ZERO_NULL, /* doing_getsock */
153 ZERO_NULL, /* domore_getsock */
154 ZERO_NULL, /* perform_getsock */
155 rtmp_disconnect, /* disconnect */
156 ZERO_NULL, /* write_resp */
157 ZERO_NULL, /* write_resp_hd */
158 ZERO_NULL, /* connection_check */
159 ZERO_NULL, /* attach connection */
160 PORT_RTMPT, /* defport */
161 CURLPROTO_RTMPTE, /* protocol */
162 CURLPROTO_RTMPTE, /* family */
163 PROTOPT_NONE /* flags */
164 };
165
166 const struct Curl_handler Curl_handler_rtmps = {
167 "rtmps", /* scheme */
168 rtmp_setup_connection, /* setup_connection */
169 rtmp_do, /* do_it */
170 rtmp_done, /* done */
171 ZERO_NULL, /* do_more */
172 rtmp_connect, /* connect_it */
173 ZERO_NULL, /* connecting */
174 ZERO_NULL, /* doing */
175 ZERO_NULL, /* proto_getsock */
176 ZERO_NULL, /* doing_getsock */
177 ZERO_NULL, /* domore_getsock */
178 ZERO_NULL, /* perform_getsock */
179 rtmp_disconnect, /* disconnect */
180 ZERO_NULL, /* write_resp */
181 ZERO_NULL, /* write_resp_hd */
182 ZERO_NULL, /* connection_check */
183 ZERO_NULL, /* attach connection */
184 PORT_RTMPS, /* defport */
185 CURLPROTO_RTMPS, /* protocol */
186 CURLPROTO_RTMP, /* family */
187 PROTOPT_NONE /* flags */
188 };
189
190 const struct Curl_handler Curl_handler_rtmpts = {
191 "rtmpts", /* scheme */
192 rtmp_setup_connection, /* setup_connection */
193 rtmp_do, /* do_it */
194 rtmp_done, /* done */
195 ZERO_NULL, /* do_more */
196 rtmp_connect, /* connect_it */
197 ZERO_NULL, /* connecting */
198 ZERO_NULL, /* doing */
199 ZERO_NULL, /* proto_getsock */
200 ZERO_NULL, /* doing_getsock */
201 ZERO_NULL, /* domore_getsock */
202 ZERO_NULL, /* perform_getsock */
203 rtmp_disconnect, /* disconnect */
204 ZERO_NULL, /* write_resp */
205 ZERO_NULL, /* write_resp_hd */
206 ZERO_NULL, /* connection_check */
207 ZERO_NULL, /* attach connection */
208 PORT_RTMPS, /* defport */
209 CURLPROTO_RTMPTS, /* protocol */
210 CURLPROTO_RTMPT, /* family */
211 PROTOPT_NONE /* flags */
212 };
213
rtmp_setup_connection(struct Curl_easy * data,struct connectdata * conn)214 static CURLcode rtmp_setup_connection(struct Curl_easy *data,
215 struct connectdata *conn)
216 {
217 RTMP *r = RTMP_Alloc();
218 if(!r)
219 return CURLE_OUT_OF_MEMORY;
220
221 RTMP_Init(r);
222 RTMP_SetBufferMS(r, DEF_BUFTIME);
223 if(!RTMP_SetupURL(r, data->state.url)) {
224 RTMP_Free(r);
225 return CURLE_URL_MALFORMAT;
226 }
227 conn->proto.rtmp = r;
228 return CURLE_OK;
229 }
230
rtmp_connect(struct Curl_easy * data,bool * done)231 static CURLcode rtmp_connect(struct Curl_easy *data, bool *done)
232 {
233 struct connectdata *conn = data->conn;
234 RTMP *r = conn->proto.rtmp;
235 SET_RCVTIMEO(tv, 10);
236
237 r->m_sb.sb_socket = (int)conn->sock[FIRSTSOCKET];
238
239 /* We have to know if it is a write before we send the
240 * connect request packet
241 */
242 if(data->state.upload)
243 r->Link.protocol |= RTMP_FEATURE_WRITE;
244
245 /* For plain streams, use the buffer toggle trick to keep data flowing */
246 if(!(r->Link.lFlags & RTMP_LF_LIVE) &&
247 !(r->Link.protocol & RTMP_FEATURE_HTTP))
248 r->Link.lFlags |= RTMP_LF_BUFX;
249
250 (void)curlx_nonblock(r->m_sb.sb_socket, FALSE);
251 setsockopt(r->m_sb.sb_socket, SOL_SOCKET, SO_RCVTIMEO,
252 (char *)&tv, sizeof(tv));
253
254 if(!RTMP_Connect1(r, NULL))
255 return CURLE_FAILED_INIT;
256
257 /* Clients must send a periodic BytesReceived report to the server */
258 r->m_bSendCounter = TRUE;
259
260 *done = TRUE;
261 conn->recv[FIRSTSOCKET] = rtmp_recv;
262 conn->send[FIRSTSOCKET] = rtmp_send;
263 return CURLE_OK;
264 }
265
rtmp_do(struct Curl_easy * data,bool * done)266 static CURLcode rtmp_do(struct Curl_easy *data, bool *done)
267 {
268 struct connectdata *conn = data->conn;
269 RTMP *r = conn->proto.rtmp;
270
271 if(!RTMP_ConnectStream(r, 0))
272 return CURLE_FAILED_INIT;
273
274 if(data->state.upload) {
275 Curl_pgrsSetUploadSize(data, data->state.infilesize);
276 Curl_xfer_setup1(data, CURL_XFER_SEND, -1, FALSE);
277 }
278 else
279 Curl_xfer_setup1(data, CURL_XFER_RECV, -1, FALSE);
280 *done = TRUE;
281 return CURLE_OK;
282 }
283
rtmp_done(struct Curl_easy * data,CURLcode status,bool premature)284 static CURLcode rtmp_done(struct Curl_easy *data, CURLcode status,
285 bool premature)
286 {
287 (void)data; /* unused */
288 (void)status; /* unused */
289 (void)premature; /* unused */
290
291 return CURLE_OK;
292 }
293
rtmp_disconnect(struct Curl_easy * data,struct connectdata * conn,bool dead_connection)294 static CURLcode rtmp_disconnect(struct Curl_easy *data,
295 struct connectdata *conn,
296 bool dead_connection)
297 {
298 RTMP *r = conn->proto.rtmp;
299 (void)data;
300 (void)dead_connection;
301 if(r) {
302 conn->proto.rtmp = NULL;
303 RTMP_Close(r);
304 RTMP_Free(r);
305 }
306 return CURLE_OK;
307 }
308
rtmp_recv(struct Curl_easy * data,int sockindex,char * buf,size_t len,CURLcode * err)309 static ssize_t rtmp_recv(struct Curl_easy *data, int sockindex, char *buf,
310 size_t len, CURLcode *err)
311 {
312 struct connectdata *conn = data->conn;
313 RTMP *r = conn->proto.rtmp;
314 ssize_t nread;
315
316 (void)sockindex; /* unused */
317
318 nread = RTMP_Read(r, buf, curlx_uztosi(len));
319 if(nread < 0) {
320 if(r->m_read.status == RTMP_READ_COMPLETE ||
321 r->m_read.status == RTMP_READ_EOF) {
322 data->req.size = data->req.bytecount;
323 nread = 0;
324 }
325 else
326 *err = CURLE_RECV_ERROR;
327 }
328 return nread;
329 }
330
rtmp_send(struct Curl_easy * data,int sockindex,const void * buf,size_t len,bool eos,CURLcode * err)331 static ssize_t rtmp_send(struct Curl_easy *data, int sockindex,
332 const void *buf, size_t len, bool eos, CURLcode *err)
333 {
334 struct connectdata *conn = data->conn;
335 RTMP *r = conn->proto.rtmp;
336 ssize_t num;
337
338 (void)sockindex; /* unused */
339 (void)eos; /* unused */
340
341 num = RTMP_Write(r, (char *)buf, curlx_uztosi(len));
342 if(num < 0)
343 *err = CURLE_SEND_ERROR;
344
345 return num;
346 }
347
Curl_rtmp_version(char * version,size_t len)348 void Curl_rtmp_version(char *version, size_t len)
349 {
350 char suff[2];
351 if(RTMP_LIB_VERSION & 0xff) {
352 suff[0] = (RTMP_LIB_VERSION & 0xff) + 'a' - 1;
353 suff[1] = '\0';
354 }
355 else
356 suff[0] = '\0';
357
358 msnprintf(version, len, "librtmp/%d.%d%s",
359 RTMP_LIB_VERSION >> 16, (RTMP_LIB_VERSION >> 8) & 0xff,
360 suff);
361 }
362
363 #endif /* USE_LIBRTMP */
364
