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,                            /* perform_getsock */
  75   rtmp_disconnect,                      /* disconnect */
  76   ZERO_NULL,                            /* readwrite */
  77   PORT_RTMP,                            /* defport */
  78   CURLPROTO_RTMP,                       /* protocol */
  79   PROTOPT_NONE                          /* flags*/
  80 };
  81
  82 const struct Curl_handler Curl_handler_rtmpt = {
  83   "RTMPT",                              /* scheme */
  84   rtmp_setup,                           /* setup_connection */
  85   rtmp_do,                              /* do_it */
  86   rtmp_done,                            /* done */
  87   ZERO_NULL,                            /* do_more */
  88   rtmp_connect,                         /* connect_it */
  89   ZERO_NULL,                            /* connecting */
  90   ZERO_NULL,                            /* doing */
  91   ZERO_NULL,                            /* proto_getsock */
  92   ZERO_NULL,                            /* doing_getsock */
  93   ZERO_NULL,                            /* perform_getsock */
  94   rtmp_disconnect,                      /* disconnect */
  95   ZERO_NULL,                            /* readwrite */
  96   PORT_RTMPT,                           /* defport */
  97   CURLPROTO_RTMPT,                      /* protocol */
  98   PROTOPT_NONE                          /* flags*/
  99 };
 100
 101 const struct Curl_handler Curl_handler_rtmpe = {
 102   "RTMPE",                              /* scheme */
 103   rtmp_setup,                           /* setup_connection */
 104   rtmp_do,                              /* do_it */
 105   rtmp_done,                            /* done */
 106   ZERO_NULL,                            /* do_more */
 107   rtmp_connect,                         /* connect_it */
 108   ZERO_NULL,                            /* connecting */
 109   ZERO_NULL,                            /* doing */
 110   ZERO_NULL,                            /* proto_getsock */
 111   ZERO_NULL,                            /* doing_getsock */
 112   ZERO_NULL,                            /* perform_getsock */
 113   rtmp_disconnect,                      /* disconnect */
 114   ZERO_NULL,                            /* readwrite */
 115   PORT_RTMP,                            /* defport */
 116   CURLPROTO_RTMPE,                      /* protocol */
 117   PROTOPT_NONE                          /* flags*/
 118 };
 119
 120 const struct Curl_handler Curl_handler_rtmpte = {
 121   "RTMPTE",                             /* scheme */
 122   rtmp_setup,                           /* setup_connection */
 123   rtmp_do,                              /* do_it */
 124   rtmp_done,                            /* done */
 125   ZERO_NULL,                            /* do_more */
 126   rtmp_connect,                         /* connect_it */
 127   ZERO_NULL,                            /* connecting */
 128   ZERO_NULL,                            /* doing */
 129   ZERO_NULL,                            /* proto_getsock */
 130   ZERO_NULL,                            /* doing_getsock */
 131   ZERO_NULL,                            /* perform_getsock */
 132   rtmp_disconnect,                      /* disconnect */
 133   ZERO_NULL,                            /* readwrite */
 134   PORT_RTMPT,                           /* defport */
 135   CURLPROTO_RTMPTE,                     /* protocol */
 136   PROTOPT_NONE                          /* flags*/
 137 };
 138
 139 const struct Curl_handler Curl_handler_rtmps = {
 140   "RTMPS",                              /* scheme */
 141   rtmp_setup,                           /* setup_connection */
 142   rtmp_do,                              /* do_it */
 143   rtmp_done,                            /* done */
 144   ZERO_NULL,                            /* do_more */
 145   rtmp_connect,                         /* connect_it */
 146   ZERO_NULL,                            /* connecting */
 147   ZERO_NULL,                            /* doing */
 148   ZERO_NULL,                            /* proto_getsock */
 149   ZERO_NULL,                            /* doing_getsock */
 150   ZERO_NULL,                            /* perform_getsock */
 151   rtmp_disconnect,                      /* disconnect */
 152   ZERO_NULL,                            /* readwrite */
 153   PORT_RTMPS,                           /* defport */
 154   CURLPROTO_RTMPS,                      /* protocol */
 155   PROTOPT_NONE                          /* flags*/
 156 };
 157
 158 const struct Curl_handler Curl_handler_rtmpts = {
 159   "RTMPTS",                             /* scheme */
 160   rtmp_setup,                           /* setup_connection */
 161   rtmp_do,                              /* do_it */
 162   rtmp_done,                            /* done */
 163   ZERO_NULL,                            /* do_more */
 164   rtmp_connect,                         /* connect_it */
 165   ZERO_NULL,                            /* connecting */
 166   ZERO_NULL,                            /* doing */
 167   ZERO_NULL,                            /* proto_getsock */
 168   ZERO_NULL,                            /* doing_getsock */
 169   ZERO_NULL,                            /* perform_getsock */
 170   rtmp_disconnect,                      /* disconnect */
 171   ZERO_NULL,                            /* readwrite */
 172   PORT_RTMPS,                           /* defport */
 173   CURLPROTO_RTMPTS,                     /* protocol */
 174   PROTOPT_NONE                          /* flags*/
 175 };
 176
 177 static CURLcode rtmp_setup(struct connectdata *conn)
 178 {
 179   RTMP *r = RTMP_Alloc();
 180
 181   if(!r)
 182     return CURLE_OUT_OF_MEMORY;
 183
 184   RTMP_Init(r);
 185   RTMP_SetBufferMS(r, DEF_BUFTIME);
 186   if(!RTMP_SetupURL(r, conn->data->change.url)) {
 187     RTMP_Free(r);
 188     return CURLE_URL_MALFORMAT;
 189   }
 190   conn->proto.generic = r;
 191   return CURLE_OK;
 192 }
 193
 194 static CURLcode rtmp_connect(struct connectdata *conn, bool *done)
 195 {
 196   RTMP *r = conn->proto.generic;
 197   SET_RCVTIMEO(tv,10);
 198
 199   r->m_sb.sb_socket = conn->sock[FIRSTSOCKET];
 200
 201   /* We have to know if it's a write before we send the
 202    * connect request packet
 203    */
 204   if(conn->data->set.upload)
 205     r->Link.protocol |= RTMP_FEATURE_WRITE;
 206
 207   /* For plain streams, use the buffer toggle trick to keep data flowing */
 208   if(!(r->Link.lFlags & RTMP_LF_LIVE) &&
 209      !(r->Link.protocol & RTMP_FEATURE_HTTP))
 210     r->Link.lFlags |= RTMP_LF_BUFX;
 211
 212   curlx_nonblock(r->m_sb.sb_socket, FALSE);
 213   setsockopt(r->m_sb.sb_socket, SOL_SOCKET, SO_RCVTIMEO,
 214              (char *)&tv, sizeof(tv));
 215
 216   if(!RTMP_Connect1(r, NULL))
 217     return CURLE_FAILED_INIT;
 218
 219   /* Clients must send a periodic BytesReceived report to the server */
 220   r->m_bSendCounter = true;
 221
 222   *done = TRUE;
 223   conn->recv[FIRSTSOCKET] = rtmp_recv;
 224   conn->send[FIRSTSOCKET] = rtmp_send;
 225   return CURLE_OK;
 226 }
 227
 228 static CURLcode rtmp_do(struct connectdata *conn, bool *done)
 229 {
 230   RTMP *r = conn->proto.generic;
 231
 232   if(!RTMP_ConnectStream(r, 0))
 233     return CURLE_FAILED_INIT;
 234
 235   if(conn->data->set.upload) {
 236     Curl_pgrsSetUploadSize(conn->data, conn->data->set.infilesize);
 237     Curl_setup_transfer(conn, -1, -1, FALSE, NULL, FIRSTSOCKET, NULL);
 238   }
 239   else
 240     Curl_setup_transfer(conn, FIRSTSOCKET, -1, FALSE, NULL, -1, NULL);
 241   *done = TRUE;
 242   return CURLE_OK;
 243 }
 244
 245 static CURLcode rtmp_done(struct connectdata *conn, CURLcode status,
 246                           bool premature)
 247 {
 248   (void)conn; /* unused */
 249   (void)status; /* unused */
 250   (void)premature; /* unused */
 251
 252   return CURLE_OK;
 253 }
 254
 255 static CURLcode rtmp_disconnect(struct connectdata *conn,
 256                                 bool dead_connection)
 257 {
 258   RTMP *r = conn->proto.generic;
 259   (void)dead_connection;
 260   if(r) {
 261     conn->proto.generic = NULL;
 262     RTMP_Close(r);
 263     RTMP_Free(r);
 264   }
 265   return CURLE_OK;
 266 }
 267
 268 static ssize_t rtmp_recv(struct connectdata *conn, int sockindex, char *buf,
 269                          size_t len, CURLcode *err)
 270 {
 271   RTMP *r = conn->proto.generic;
 272   ssize_t nread;
 273
 274   (void)sockindex; /* unused */
 275
 276   nread = RTMP_Read(r, buf, len);
 277   if(nread < 0) {
 278     if(r->m_read.status == RTMP_READ_COMPLETE ||
 279         r->m_read.status == RTMP_READ_EOF) {
 280       conn->data->req.size = conn->data->req.bytecount;
 281       nread = 0;
 282     }
 283     else
 284       *err = CURLE_RECV_ERROR;
 285   }
 286   return nread;
 287 }
 288
 289 static ssize_t rtmp_send(struct connectdata *conn, int sockindex,
 290                          const void *buf, size_t len, CURLcode *err)
 291 {
 292   RTMP *r = conn->proto.generic;
 293   ssize_t num;
 294
 295   (void)sockindex; /* unused */
 296
 297   num = RTMP_Write(r, (char *)buf, len);
 298   if(num < 0)
 299     *err = CURLE_SEND_ERROR;
 300
 301   return num;
 302 }
 303 #endif  /* USE_LIBRTMP */