lib/curl_rtmp.c

   1 /***************************************************************************
   2  *                      _   _ ____  _
   3  *  Project         ___| | | |  _ \| |
   4  *                 / __| | | | |_) | |
   5  *                | (__| |_| |  _ <| |___
   6  *                 \___|\___/|_| \_\_____|
   7  *
   8  * Copyright (C) 2010, Howard Chu, <hyc@highlandsun.com>
   9  *
  10  * This software is licensed as described in the file COPYING, which
  11  * you should have received as part of this distribution. The terms
  12  * are also available at http://curl.haxx.se/docs/copyright.html.
  13  *
  14  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
  15  * copies of the Software, and permit persons to whom the Software is
  16  * furnished to do so, under the terms of the COPYING file.
  17  *
  18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  19  * KIND, either express or implied.
  20  *
  21  ***************************************************************************/
  22
  23 #include "setup.h"
  24
  25 #ifdef USE_LIBRTMP
  26
  27 #include "urldata.h"
  28 #include "nonblock.h" /* for curlx_nonblock */
  29 #include "progress.h" /* for Curl_pgrsSetUploadSize */
  30 #include "transfer.h"
  31 #include <curl/curl.h>
  32 #include <librtmp/rtmp.h>
  33
  34 #define _MPRINTF_REPLACE /* use our functions only */
  35 #include <curl/mprintf.h>
  36
  37 #include "curl_memory.h"
  38 /* The last #include file should be: */
  39 #include "memdebug.h"
  40
  41 #ifdef _WIN32
  42 #define setsockopt(a,b,c,d,e) (setsockopt)(a,b,c,(const char *)d,(int)e)
  43 #define SET_RCVTIMEO(tv,s)   int tv = s*1000
  44 #else
  45 #define SET_RCVTIMEO(tv,s)   struct timeval tv = {s,0}
  46 #endif
  47
  48 #define DEF_BUFTIME    (2*60*60*1000)    /* 2 hours */
  49
  50 static CURLcode rtmp_setup(struct connectdata *conn);
  51 static CURLcode rtmp_do(struct connectdata *conn, bool *done);
  52 static CURLcode rtmp_done(struct connectdata *conn, CURLcode, bool premature);
  53 static CURLcode rtmp_connect(struct connectdata *conn, bool *done);
  54 static CURLcode rtmp_disconnect(struct connectdata *conn, bool dead);
  55
  56 static Curl_recv rtmp_recv;
  57 static Curl_send rtmp_send;
  58
  59 /*
  60  * RTMP protocol handler.h, based on http://rtmpdump.mplayerhq.hu
  61  */
  62
  63 const struct Curl_handler Curl_handler_rtmp = {
  64   "RTMP",                               /* scheme */
  65   rtmp_setup,                           /* setup_connection */
  66   rtmp_do,                              /* do_it */
  67   rtmp_done,                            /* done */
  68   ZERO_NULL,                            /* do_more */
  69   rtmp_connect,                         /* connect_it */
  70   ZERO_NULL,                            /* connecting */
  71   ZERO_NULL,                            /* doing */
  72   ZERO_NULL,                            /* proto_getsock */
  73   ZERO_NULL,                            /* doing_getsock */
  74   ZERO_NULL,                            /* domore_getsock */
  75   ZERO_NULL,                            /* perform_getsock */
  76   rtmp_disconnect,                      /* disconnect */
  77   ZERO_NULL,                            /* readwrite */
  78   PORT_RTMP,                            /* defport */
  79   CURLPROTO_RTMP,                       /* protocol */
  80   PROTOPT_NONE                          /* flags*/
  81 };
  82
  83 const struct Curl_handler Curl_handler_rtmpt = {
  84   "RTMPT",                              /* scheme */
  85   rtmp_setup,                           /* setup_connection */
  86   rtmp_do,                              /* do_it */
  87   rtmp_done,                            /* done */
  88   ZERO_NULL,                            /* do_more */
  89   rtmp_connect,                         /* connect_it */
  90   ZERO_NULL,                            /* connecting */
  91   ZERO_NULL,                            /* doing */
  92   ZERO_NULL,                            /* proto_getsock */
  93   ZERO_NULL,                            /* doing_getsock */
  94   ZERO_NULL,                            /* domore_getsock */
  95   ZERO_NULL,                            /* perform_getsock */
  96   rtmp_disconnect,                      /* disconnect */
  97   ZERO_NULL,                            /* readwrite */
  98   PORT_RTMPT,                           /* defport */
  99   CURLPROTO_RTMPT,                      /* protocol */
 100   PROTOPT_NONE                          /* flags*/
 101 };
 102
 103 const struct Curl_handler Curl_handler_rtmpe = {
 104   "RTMPE",                              /* scheme */
 105   rtmp_setup,                           /* setup_connection */
 106   rtmp_do,                              /* do_it */
 107   rtmp_done,                            /* done */
 108   ZERO_NULL,                            /* do_more */
 109   rtmp_connect,                         /* connect_it */
 110   ZERO_NULL,                            /* connecting */
 111   ZERO_NULL,                            /* doing */
 112   ZERO_NULL,                            /* proto_getsock */
 113   ZERO_NULL,                            /* doing_getsock */
 114   ZERO_NULL,                            /* domore_getsock */
 115   ZERO_NULL,                            /* perform_getsock */
 116   rtmp_disconnect,                      /* disconnect */
 117   ZERO_NULL,                            /* readwrite */
 118   PORT_RTMP,                            /* defport */
 119   CURLPROTO_RTMPE,                      /* protocol */
 120   PROTOPT_NONE                          /* flags*/
 121 };
 122
 123 const struct Curl_handler Curl_handler_rtmpte = {
 124   "RTMPTE",                             /* scheme */
 125   rtmp_setup,                           /* setup_connection */
 126   rtmp_do,                              /* do_it */
 127   rtmp_done,                            /* done */
 128   ZERO_NULL,                            /* do_more */
 129   rtmp_connect,                         /* connect_it */
 130   ZERO_NULL,                            /* connecting */
 131   ZERO_NULL,                            /* doing */
 132   ZERO_NULL,                            /* proto_getsock */
 133   ZERO_NULL,                            /* doing_getsock */
 134   ZERO_NULL,                            /* domore_getsock */
 135   ZERO_NULL,                            /* perform_getsock */
 136   rtmp_disconnect,                      /* disconnect */
 137   ZERO_NULL,                            /* readwrite */
 138   PORT_RTMPT,                           /* defport */
 139   CURLPROTO_RTMPTE,                     /* protocol */
 140   PROTOPT_NONE                          /* flags*/
 141 };
 142
 143 const struct Curl_handler Curl_handler_rtmps = {
 144   "RTMPS",                              /* scheme */
 145   rtmp_setup,                           /* setup_connection */
 146   rtmp_do,                              /* do_it */
 147   rtmp_done,                            /* done */
 148   ZERO_NULL,                            /* do_more */
 149   rtmp_connect,                         /* connect_it */
 150   ZERO_NULL,                            /* connecting */
 151   ZERO_NULL,                            /* doing */
 152   ZERO_NULL,                            /* proto_getsock */
 153   ZERO_NULL,                            /* doing_getsock */
 154   ZERO_NULL,                            /* domore_getsock */
 155   ZERO_NULL,                            /* perform_getsock */
 156   rtmp_disconnect,                      /* disconnect */
 157   ZERO_NULL,                            /* readwrite */
 158   PORT_RTMPS,                           /* defport */
 159   CURLPROTO_RTMPS,                      /* protocol */
 160   PROTOPT_NONE                          /* flags*/
 161 };
 162
 163 const struct Curl_handler Curl_handler_rtmpts = {
 164   "RTMPTS",                             /* scheme */
 165   rtmp_setup,                           /* setup_connection */
 166   rtmp_do,                              /* do_it */
 167   rtmp_done,                            /* done */
 168   ZERO_NULL,                            /* do_more */
 169   rtmp_connect,                         /* connect_it */
 170   ZERO_NULL,                            /* connecting */
 171   ZERO_NULL,                            /* doing */
 172   ZERO_NULL,                            /* proto_getsock */
 173   ZERO_NULL,                            /* doing_getsock */
 174   ZERO_NULL,                            /* domore_getsock */
 175   ZERO_NULL,                            /* perform_getsock */
 176   rtmp_disconnect,                      /* disconnect */
 177   ZERO_NULL,                            /* readwrite */
 178   PORT_RTMPS,                           /* defport */
 179   CURLPROTO_RTMPTS,                     /* protocol */
 180   PROTOPT_NONE                          /* flags*/
 181 };
 182
 183 static CURLcode rtmp_setup(struct connectdata *conn)
 184 {
 185   RTMP *r = RTMP_Alloc();
 186
 187   if(!r)
 188     return CURLE_OUT_OF_MEMORY;
 189
 190   RTMP_Init(r);
 191   RTMP_SetBufferMS(r, DEF_BUFTIME);
 192   if(!RTMP_SetupURL(r, conn->data->change.url)) {
 193     RTMP_Free(r);
 194     return CURLE_URL_MALFORMAT;
 195   }
 196   conn->proto.generic = r;
 197   return CURLE_OK;
 198 }
 199
 200 static CURLcode rtmp_connect(struct connectdata *conn, bool *done)
 201 {
 202   RTMP *r = conn->proto.generic;
 203   SET_RCVTIMEO(tv,10);
 204
 205   r->m_sb.sb_socket = conn->sock[FIRSTSOCKET];
 206
 207   /* We have to know if it's a write before we send the
 208    * connect request packet
 209    */
 210   if(conn->data->set.upload)
 211     r->Link.protocol |= RTMP_FEATURE_WRITE;
 212
 213   /* For plain streams, use the buffer toggle trick to keep data flowing */
 214   if(!(r->Link.lFlags & RTMP_LF_LIVE) &&
 215      !(r->Link.protocol & RTMP_FEATURE_HTTP))
 216     r->Link.lFlags |= RTMP_LF_BUFX;
 217
 218   curlx_nonblock(r->m_sb.sb_socket, FALSE);
 219   setsockopt(r->m_sb.sb_socket, SOL_SOCKET, SO_RCVTIMEO,
 220              (char *)&tv, sizeof(tv));
 221
 222   if(!RTMP_Connect1(r, NULL))
 223     return CURLE_FAILED_INIT;
 224
 225   /* Clients must send a periodic BytesReceived report to the server */
 226   r->m_bSendCounter = true;
 227
 228   *done = TRUE;
 229   conn->recv[FIRSTSOCKET] = rtmp_recv;
 230   conn->send[FIRSTSOCKET] = rtmp_send;
 231   return CURLE_OK;
 232 }
 233
 234 static CURLcode rtmp_do(struct connectdata *conn, bool *done)
 235 {
 236   RTMP *r = conn->proto.generic;
 237
 238   if(!RTMP_ConnectStream(r, 0))
 239     return CURLE_FAILED_INIT;
 240
 241   if(conn->data->set.upload) {
 242     Curl_pgrsSetUploadSize(conn->data, conn->data->set.infilesize);
 243     Curl_setup_transfer(conn, -1, -1, FALSE, NULL, FIRSTSOCKET, NULL);
 244   }
 245   else
 246     Curl_setup_transfer(conn, FIRSTSOCKET, -1, FALSE, NULL, -1, NULL);
 247   *done = TRUE;
 248   return CURLE_OK;
 249 }
 250
 251 static CURLcode rtmp_done(struct connectdata *conn, CURLcode status,
 252                           bool premature)
 253 {
 254   (void)conn; /* unused */
 255   (void)status; /* unused */
 256   (void)premature; /* unused */
 257
 258   return CURLE_OK;
 259 }
 260
 261 static CURLcode rtmp_disconnect(struct connectdata *conn,
 262                                 bool dead_connection)
 263 {
 264   RTMP *r = conn->proto.generic;
 265   (void)dead_connection;
 266   if(r) {
 267     conn->proto.generic = NULL;
 268     RTMP_Close(r);
 269     RTMP_Free(r);
 270   }
 271   return CURLE_OK;
 272 }
 273
 274 static ssize_t rtmp_recv(struct connectdata *conn, int sockindex, char *buf,
 275                          size_t len, CURLcode *err)
 276 {
 277   RTMP *r = conn->proto.generic;
 278   ssize_t nread;
 279
 280   (void)sockindex; /* unused */
 281
 282   nread = RTMP_Read(r, buf, len);
 283   if(nread < 0) {
 284     if(r->m_read.status == RTMP_READ_COMPLETE ||
 285         r->m_read.status == RTMP_READ_EOF) {
 286       conn->data->req.size = conn->data->req.bytecount;
 287       nread = 0;
 288     }
 289     else
 290       *err = CURLE_RECV_ERROR;
 291   }
 292   return nread;
 293 }
 294
 295 static ssize_t rtmp_send(struct connectdata *conn, int sockindex,
 296                          const void *buf, size_t len, CURLcode *err)
 297 {
 298   RTMP *r = conn->proto.generic;
 299   ssize_t num;
 300
 301   (void)sockindex; /* unused */
 302
 303   num = RTMP_Write(r, (char *)buf, len);
 304   if(num < 0)
 305     *err = CURLE_SEND_ERROR;
 306
 307   return num;
 308 }
 309 #endif  /* USE_LIBRTMP */