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rtmp.c
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/*
* Copyright (C) 2005-2008 Team XBMC
* http://www.xbmc.org
* Copyright (C) 2008-2009 Andrej Stepanchuk
* Copyright (C) 2009-2010 Howard Chu
*
* This file is part of librtmp.
*
* librtmp is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1,
* or (at your option) any later version.
*
* librtmp 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 Lesser General Public License
* along with librtmp see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/lgpl.html
*/
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <time.h>
#include "rtmp_sys.h"
#include "log.h"
#ifdef CRYPTO
#ifdef USE_POLARSSL
#include <polarssl/havege.h>
#include <polarssl/md5.h>
#include <polarssl/base64.h>
#define MD5_DIGEST_LENGTH 16
static const char *my_dhm_P =
"E4004C1F94182000103D883A448B3F80" \
"2CE4B44A83301270002C20D0321CFD00" \
"11CCEF784C26A400F43DFB901BCA7538" \
"F2C6B176001CF5A0FD16D2C48B1D0C1C" \
"F6AC8E1DA6BCC3B4E1F96B0564965300" \
"FFA1D0B601EB2800F489AA512C4B248C" \
"01F76949A60BB7F00A40B1EAB64BDD48" \
"E8A700D60B7F1200FA8E77B0A979DABF";
static const char *my_dhm_G = "4";
#elif defined(USE_GNUTLS)
#include <gnutls/gnutls.h>
#define MD5_DIGEST_LENGTH 16
#include <nettle/base64.h>
#include <nettle/md5.h>
#else /* USE_OPENSSL */
#include <openssl/ssl.h>
#include <openssl/rc4.h>
#include <openssl/md5.h>
#include <openssl/bio.h>
#include <openssl/buffer.h>
#endif
TLS_CTX RTMP_TLS_ctx;
#endif
#define RTMP_SIG_SIZE 1536
#define RTMP_LARGE_HEADER_SIZE 12
static const int packetSize[] = { 12, 8, 4, 1 };
int RTMP_ctrlC;
const char RTMPProtocolStrings[][7] = {
"RTMP",
"RTMPT",
"RTMPE",
"RTMPTE",
"RTMPS",
"RTMPTS",
"",
"",
"RTMFP"
};
const char RTMPProtocolStringsLower[][7] = {
"rtmp",
"rtmpt",
"rtmpe",
"rtmpte",
"rtmps",
"rtmpts",
"",
"",
"rtmfp"
};
static const char *RTMPT_cmds[] = {
"open",
"send",
"idle",
"close"
};
typedef enum {
RTMPT_OPEN=0, RTMPT_SEND, RTMPT_IDLE, RTMPT_CLOSE
} RTMPTCmd;
static int DumpMetaData(AMFObject *obj);
static int HandShake(RTMP *r, int FP9HandShake);
static int SocksNegotiate(RTMP *r);
static int SendConnectPacket(RTMP *r, RTMPPacket *cp);
static int SendCheckBW(RTMP *r);
static int SendCheckBWResult(RTMP *r, double txn);
static int SendDeleteStream(RTMP *r, double dStreamId);
static int SendFCSubscribe(RTMP *r, AVal *subscribepath);
static int SendPlay(RTMP *r);
static int SendBytesReceived(RTMP *r);
static int SendUsherToken(RTMP *r, AVal *usherToken);
#if 0 /* unused */
static int SendBGHasStream(RTMP *r, double dId, AVal *playpath);
#endif
static int HandleInvoke(RTMP *r, const char *body, unsigned int nBodySize);
static int HandleMetadata(RTMP *r, char *body, unsigned int len);
static void HandleChangeChunkSize(RTMP *r, const RTMPPacket *packet);
static void HandleAudio(RTMP *r, const RTMPPacket *packet);
static void HandleVideo(RTMP *r, const RTMPPacket *packet);
static void HandleCtrl(RTMP *r, const RTMPPacket *packet);
static void HandleServerBW(RTMP *r, const RTMPPacket *packet);
static void HandleClientBW(RTMP *r, const RTMPPacket *packet);
static int ReadN(RTMP *r, char *buffer, int n);
static int WriteN(RTMP *r, const char *buffer, int n);
static void DecodeTEA(AVal *key, AVal *text);
static int HTTP_Post(RTMP *r, RTMPTCmd cmd, const char *buf, int len);
static int HTTP_read(RTMP *r, int fill);
static void CloseInternal(RTMP *r, int reconnect);
#ifndef _WIN32
static int clk_tck;
#endif
#ifdef CRYPTO
#include "handshake.h"
#endif
uint32_t
RTMP_GetTime()
{
#ifdef _DEBUG
return 0;
#elif defined(_WIN32)
SYSTEMTIME SystemTime;
GetSystemTime(&SystemTime);
return (SystemTime.wMilliseconds);
#else
struct tms t;
if (!clk_tck) clk_tck = sysconf(_SC_CLK_TCK);
return times(&t) * 1000 / clk_tck;
#endif
}
void
RTMP_UserInterrupt()
{
RTMP_ctrlC = TRUE;
}
void
RTMPPacket_Reset(RTMPPacket *p)
{
p->m_headerType = 0;
p->m_packetType = 0;
p->m_nChannel = 0;
p->m_nTimeStamp = 0;
p->m_nInfoField2 = 0;
p->m_hasAbsTimestamp = FALSE;
p->m_nBodySize = 0;
p->m_nBytesRead = 0;
}
int
RTMPPacket_Alloc(RTMPPacket *p, uint32_t nSize)
{
char *ptr;
if (nSize > SIZE_MAX - RTMP_MAX_HEADER_SIZE)
return FALSE;
ptr = calloc(1, nSize + RTMP_MAX_HEADER_SIZE);
if (!ptr)
return FALSE;
p->m_body = ptr + RTMP_MAX_HEADER_SIZE;
p->m_nBytesRead = 0;
return TRUE;
}
void
RTMPPacket_Free(RTMPPacket *p)
{
if (p->m_body)
{
free(p->m_body - RTMP_MAX_HEADER_SIZE);
p->m_body = NULL;
}
}
void
RTMPPacket_Dump(RTMPPacket *p)
{
RTMP_Log(RTMP_LOGDEBUG,
"RTMP PACKET: packet type: 0x%02x. channel: 0x%02x. info 1: %d info 2: %d. Body size: %u. body: 0x%02x",
p->m_packetType, p->m_nChannel, p->m_nTimeStamp, p->m_nInfoField2,
p->m_nBodySize, p->m_body ? (unsigned char)p->m_body[0] : 0);
}
int
RTMP_LibVersion()
{
return RTMP_LIB_VERSION;
}
void
RTMP_TLS_Init()
{
#ifdef CRYPTO
#ifdef USE_POLARSSL
/* Do this regardless of NO_SSL, we use havege for rtmpe too */
RTMP_TLS_ctx = calloc(1,sizeof(struct tls_ctx));
havege_init(&RTMP_TLS_ctx->hs);
#elif defined(USE_GNUTLS) && !defined(NO_SSL)
/* Technically we need to initialize libgcrypt ourselves if
* we're not going to call gnutls_global_init(). Ignoring this
* for now.
*/
gnutls_global_init();
RTMP_TLS_ctx = malloc(sizeof(struct tls_ctx));
gnutls_certificate_allocate_credentials(&RTMP_TLS_ctx->cred);
gnutls_priority_init(&RTMP_TLS_ctx->prios, "NORMAL", NULL);
gnutls_certificate_set_x509_trust_file(RTMP_TLS_ctx->cred,
"ca.pem", GNUTLS_X509_FMT_PEM);
#elif !defined(NO_SSL) /* USE_OPENSSL */
/* libcrypto doesn't need anything special */
SSL_load_error_strings();
SSL_library_init();
OpenSSL_add_all_digests();
RTMP_TLS_ctx = SSL_CTX_new(SSLv23_method());
SSL_CTX_set_options(RTMP_TLS_ctx, SSL_OP_ALL);
SSL_CTX_set_default_verify_paths(RTMP_TLS_ctx);
#endif
#endif
}
void *
RTMP_TLS_AllocServerContext(const char* cert, const char* key)
{
void *ctx = NULL;
#ifdef CRYPTO
if (!RTMP_TLS_ctx)
RTMP_TLS_Init();
#ifdef USE_POLARSSL
tls_server_ctx *tc = ctx = calloc(1, sizeof(struct tls_server_ctx));
tc->dhm_P = my_dhm_P;
tc->dhm_G = my_dhm_G;
tc->hs = &RTMP_TLS_ctx->hs;
if (x509parse_crtfile(&tc->cert, cert)) {
free(tc);
return NULL;
}
if (x509parse_keyfile(&tc->key, key, NULL)) {
x509_free(&tc->cert);
free(tc);
return NULL;
}
#elif defined(USE_GNUTLS) && !defined(NO_SSL)
gnutls_certificate_allocate_credentials((gnutls_certificate_credentials*) &ctx);
if (gnutls_certificate_set_x509_key_file(ctx, cert, key, GNUTLS_X509_FMT_PEM) != 0) {
gnutls_certificate_free_credentials(ctx);
return NULL;
}
#elif !defined(NO_SSL) /* USE_OPENSSL */
ctx = SSL_CTX_new(SSLv23_server_method());
if (!SSL_CTX_use_certificate_chain_file(ctx, cert)) {
SSL_CTX_free(ctx);
return NULL;
}
if (!SSL_CTX_use_PrivateKey_file(ctx, key, SSL_FILETYPE_PEM)) {
SSL_CTX_free(ctx);
return NULL;
}
#endif
#endif
return ctx;
}
void
RTMP_TLS_FreeServerContext(void *ctx)
{
#ifdef CRYPTO
#ifdef USE_POLARSSL
x509_free(&((tls_server_ctx*)ctx)->cert);
rsa_free(&((tls_server_ctx*)ctx)->key);
free(ctx);
#elif defined(USE_GNUTLS) && !defined(NO_SSL)
gnutls_certificate_free_credentials(ctx);
#elif !defined(NO_SSL) /* USE_OPENSSL */
SSL_CTX_free(ctx);
#endif
#endif
}
RTMP *
RTMP_Alloc()
{
return calloc(1, sizeof(RTMP));
}
void
RTMP_Free(RTMP *r)
{
free(r);
}
void
RTMP_Init(RTMP *r)
{
#ifdef CRYPTO
if (!RTMP_TLS_ctx)
RTMP_TLS_Init();
#endif
memset(r, 0, sizeof(RTMP));
r->m_sb.sb_socket = -1;
r->m_inChunkSize = RTMP_DEFAULT_CHUNKSIZE;
r->m_outChunkSize = RTMP_DEFAULT_CHUNKSIZE;
r->m_nBufferMS = 30000;
r->m_nClientBW = 2500000;
r->m_nClientBW2 = 2;
r->m_nServerBW = 2500000;
r->m_fAudioCodecs = 3191.0;
r->m_fVideoCodecs = 252.0;
r->Link.timeout = 30;
r->Link.swfAge = 30;
}
void
RTMP_EnableWrite(RTMP *r)
{
r->Link.protocol |= RTMP_FEATURE_WRITE;
}
double
RTMP_GetDuration(RTMP *r)
{
return r->m_fDuration;
}
int
RTMP_IsConnected(RTMP *r)
{
return r->m_sb.sb_socket != -1;
}
int
RTMP_Socket(RTMP *r)
{
return r->m_sb.sb_socket;
}
int
RTMP_IsTimedout(RTMP *r)
{
return r->m_sb.sb_timedout;
}
void
RTMP_SetBufferMS(RTMP *r, int size)
{
r->m_nBufferMS = size;
}
void
RTMP_UpdateBufferMS(RTMP *r)
{
RTMP_SendCtrl(r, 3, r->m_stream_id, r->m_nBufferMS);
}
#undef OSS
#ifdef _WIN32
#define OSS "WIN"
#elif defined(__sun__)
#define OSS "SOL"
#elif defined(__APPLE__)
#define OSS "MAC"
#elif defined(__linux__)
#define OSS "LNX"
#else
#define OSS "GNU"
#endif
#define DEF_VERSTR OSS " 10,0,32,18"
static const char DEFAULT_FLASH_VER[] = DEF_VERSTR;
const AVal RTMP_DefaultFlashVer =
{ (char *)DEFAULT_FLASH_VER, sizeof(DEFAULT_FLASH_VER) - 1 };
static void
SocksSetup(RTMP *r, AVal *sockshost)
{
if (sockshost->av_len)
{
const char *socksport = strchr(sockshost->av_val, ':');
char *hostname = strdup(sockshost->av_val);
if (socksport)
hostname[socksport - sockshost->av_val] = '\0';
r->Link.sockshost.av_val = hostname;
r->Link.sockshost.av_len = strlen(hostname);
r->Link.socksport = socksport ? atoi(socksport + 1) : 1080;
RTMP_Log(RTMP_LOGDEBUG, "Connecting via SOCKS proxy: %s:%d", r->Link.sockshost.av_val,
r->Link.socksport);
}
else
{
r->Link.sockshost.av_val = NULL;
r->Link.sockshost.av_len = 0;
r->Link.socksport = 0;
}
}
void
RTMP_SetupStream(RTMP *r,
int protocol,
AVal *host,
unsigned int port,
AVal *sockshost,
AVal *playpath,
AVal *tcUrl,
AVal *swfUrl,
AVal *pageUrl,
AVal *app,
AVal *auth,
AVal *swfSHA256Hash,
uint32_t swfSize,
AVal *flashVer,
AVal *subscribepath,
AVal *usherToken,
int dStart,
int dStop, int bLiveStream, long int timeout)
{
RTMP_Log(RTMP_LOGDEBUG, "Protocol : %s", RTMPProtocolStrings[protocol&7]);
RTMP_Log(RTMP_LOGDEBUG, "Hostname : %.*s", host->av_len, host->av_val);
RTMP_Log(RTMP_LOGDEBUG, "Port : %d", port);
RTMP_Log(RTMP_LOGDEBUG, "Playpath : %s", playpath->av_val);
if (tcUrl && tcUrl->av_val)
RTMP_Log(RTMP_LOGDEBUG, "tcUrl : %s", tcUrl->av_val);
if (swfUrl && swfUrl->av_val)
RTMP_Log(RTMP_LOGDEBUG, "swfUrl : %s", swfUrl->av_val);
if (pageUrl && pageUrl->av_val)
RTMP_Log(RTMP_LOGDEBUG, "pageUrl : %s", pageUrl->av_val);
if (app && app->av_val)
RTMP_Log(RTMP_LOGDEBUG, "app : %.*s", app->av_len, app->av_val);
if (auth && auth->av_val)
RTMP_Log(RTMP_LOGDEBUG, "auth : %s", auth->av_val);
if (subscribepath && subscribepath->av_val)
RTMP_Log(RTMP_LOGDEBUG, "subscribepath : %s", subscribepath->av_val);
if (usherToken && usherToken->av_val)
RTMP_Log(RTMP_LOGDEBUG, "NetStream.Authenticate.UsherToken : %s", usherToken->av_val);
if (flashVer && flashVer->av_val)
RTMP_Log(RTMP_LOGDEBUG, "flashVer : %s", flashVer->av_val);
if (dStart > 0)
RTMP_Log(RTMP_LOGDEBUG, "StartTime : %d msec", dStart);
if (dStop > 0)
RTMP_Log(RTMP_LOGDEBUG, "StopTime : %d msec", dStop);
RTMP_Log(RTMP_LOGDEBUG, "live : %s", bLiveStream ? "yes" : "no");
RTMP_Log(RTMP_LOGDEBUG, "timeout : %ld sec", timeout);
#ifdef CRYPTO
if (swfSHA256Hash != NULL && swfSize > 0)
{
memcpy(r->Link.SWFHash, swfSHA256Hash->av_val, sizeof(r->Link.SWFHash));
r->Link.SWFSize = swfSize;
RTMP_Log(RTMP_LOGDEBUG, "SWFSHA256:");
RTMP_LogHex(RTMP_LOGDEBUG, r->Link.SWFHash, sizeof(r->Link.SWFHash));
RTMP_Log(RTMP_LOGDEBUG, "SWFSize : %u", r->Link.SWFSize);
}
else
{
r->Link.SWFSize = 0;
}
#endif
SocksSetup(r, sockshost);
if (tcUrl && tcUrl->av_len)
r->Link.tcUrl = *tcUrl;
if (swfUrl && swfUrl->av_len)
r->Link.swfUrl = *swfUrl;
if (pageUrl && pageUrl->av_len)
r->Link.pageUrl = *pageUrl;
if (app && app->av_len)
r->Link.app = *app;
if (auth && auth->av_len)
{
r->Link.auth = *auth;
r->Link.lFlags |= RTMP_LF_AUTH;
}
if (flashVer && flashVer->av_len)
r->Link.flashVer = *flashVer;
else
r->Link.flashVer = RTMP_DefaultFlashVer;
if (subscribepath && subscribepath->av_len)
r->Link.subscribepath = *subscribepath;
if (usherToken && usherToken->av_len)
r->Link.usherToken = *usherToken;
r->Link.seekTime = dStart;
r->Link.stopTime = dStop;
if (bLiveStream)
r->Link.lFlags |= RTMP_LF_LIVE;
r->Link.timeout = timeout;
r->Link.protocol = protocol;
r->Link.hostname = *host;
r->Link.port = port;
r->Link.playpath = *playpath;
if (r->Link.port == 0)
{
if (protocol & RTMP_FEATURE_SSL)
r->Link.port = 443;
else if (protocol & RTMP_FEATURE_HTTP)
r->Link.port = 80;
else
r->Link.port = 1935;
}
}
enum { OPT_STR=0, OPT_INT, OPT_BOOL, OPT_CONN };
static const char *optinfo[] = {
"string", "integer", "boolean", "AMF" };
#define OFF(x) offsetof(struct RTMP,x)
static struct urlopt {
AVal name;
off_t off;
int otype;
int omisc;
char *use;
} options[] = {
{ AVC("socks"), OFF(Link.sockshost), OPT_STR, 0,
"Use the specified SOCKS proxy" },
{ AVC("app"), OFF(Link.app), OPT_STR, 0,
"Name of target app on server" },
{ AVC("tcUrl"), OFF(Link.tcUrl), OPT_STR, 0,
"URL to played stream" },
{ AVC("pageUrl"), OFF(Link.pageUrl), OPT_STR, 0,
"URL of played media's web page" },
{ AVC("swfUrl"), OFF(Link.swfUrl), OPT_STR, 0,
"URL to player SWF file" },
{ AVC("flashver"), OFF(Link.flashVer), OPT_STR, 0,
"Flash version string (default " DEF_VERSTR ")" },
{ AVC("conn"), OFF(Link.extras), OPT_CONN, 0,
"Append arbitrary AMF data to Connect message" },
{ AVC("playpath"), OFF(Link.playpath), OPT_STR, 0,
"Path to target media on server" },
{ AVC("playlist"), OFF(Link.lFlags), OPT_BOOL, RTMP_LF_PLST,
"Set playlist before play command" },
{ AVC("live"), OFF(Link.lFlags), OPT_BOOL, RTMP_LF_LIVE,
"Stream is live, no seeking possible" },
{ AVC("subscribe"), OFF(Link.subscribepath), OPT_STR, 0,
"Stream to subscribe to" },
{ AVC("jtv"), OFF(Link.usherToken), OPT_STR, 0,
"Justin.tv authentication token" },
{ AVC("token"), OFF(Link.token), OPT_STR, 0,
"Key for SecureToken response" },
{ AVC("swfVfy"), OFF(Link.lFlags), OPT_BOOL, RTMP_LF_SWFV,
"Perform SWF Verification" },
{ AVC("swfAge"), OFF(Link.swfAge), OPT_INT, 0,
"Number of days to use cached SWF hash" },
{ AVC("start"), OFF(Link.seekTime), OPT_INT, 0,
"Stream start position in milliseconds" },
{ AVC("stop"), OFF(Link.stopTime), OPT_INT, 0,
"Stream stop position in milliseconds" },
{ AVC("buffer"), OFF(m_nBufferMS), OPT_INT, 0,
"Buffer time in milliseconds" },
{ AVC("timeout"), OFF(Link.timeout), OPT_INT, 0,
"Session timeout in seconds" },
{ AVC("pubUser"), OFF(Link.pubUser), OPT_STR, 0,
"Publisher username" },
{ AVC("pubPasswd"), OFF(Link.pubPasswd), OPT_STR, 0,
"Publisher password" },
{ {NULL,0}, 0, 0}
};
static const AVal truth[] = {
AVC("1"),
AVC("on"),
AVC("yes"),
AVC("true"),
{0,0}
};
static void RTMP_OptUsage()
{
int i;
RTMP_Log(RTMP_LOGERROR, "Valid RTMP options are:\n");
for (i=0; options[i].name.av_len; i++) {
RTMP_Log(RTMP_LOGERROR, "%10s %-7s %s\n", options[i].name.av_val,
optinfo[options[i].otype], options[i].use);
}
}
static int
parseAMF(AMFObject *obj, AVal *av, int *depth)
{
AMFObjectProperty prop = {{0,0}};
int i;
char *p, *arg = av->av_val;
if (arg[1] == ':')
{
p = (char *)arg+2;
switch(arg[0])
{
case 'B':
prop.p_type = AMF_BOOLEAN;
prop.p_vu.p_number = atoi(p);
break;
case 'S':
prop.p_type = AMF_STRING;
prop.p_vu.p_aval.av_val = p;
prop.p_vu.p_aval.av_len = av->av_len - (p-arg);
break;
case 'N':
prop.p_type = AMF_NUMBER;
prop.p_vu.p_number = strtod(p, NULL);
break;
case 'Z':
prop.p_type = AMF_NULL;
break;
case 'O':
i = atoi(p);
if (i)
{
prop.p_type = AMF_OBJECT;
}
else
{
(*depth)--;
return 0;
}
break;
default:
return -1;
}
}
else if (arg[2] == ':' && arg[0] == 'N')
{
p = strchr(arg+3, ':');
if (!p || !*depth)
return -1;
prop.p_name.av_val = (char *)arg+3;
prop.p_name.av_len = p - (arg+3);
p++;
switch(arg[1])
{
case 'B':
prop.p_type = AMF_BOOLEAN;
prop.p_vu.p_number = atoi(p);
break;
case 'S':
prop.p_type = AMF_STRING;
prop.p_vu.p_aval.av_val = p;
prop.p_vu.p_aval.av_len = av->av_len - (p-arg);
break;
case 'N':
prop.p_type = AMF_NUMBER;
prop.p_vu.p_number = strtod(p, NULL);
break;
case 'O':
prop.p_type = AMF_OBJECT;
break;
default:
return -1;
}
}
else
return -1;
if (*depth)
{
AMFObject *o2;
for (i=0; i<*depth; i++)
{
o2 = &obj->o_props[obj->o_num-1].p_vu.p_object;
obj = o2;
}
}
AMF_AddProp(obj, &prop);
if (prop.p_type == AMF_OBJECT)
(*depth)++;
return 0;
}
int RTMP_SetOpt(RTMP *r, const AVal *opt, AVal *arg)
{
int i;
void *v;
for (i=0; options[i].name.av_len; i++) {
if (opt->av_len != options[i].name.av_len) continue;
if (strcasecmp(opt->av_val, options[i].name.av_val)) continue;
v = (char *)r + options[i].off;
switch(options[i].otype) {
case OPT_STR: {
AVal *aptr = v;
*aptr = *arg; }
break;
case OPT_INT: {
long l = strtol(arg->av_val, NULL, 0);
*(int *)v = l; }
break;
case OPT_BOOL: {
int j, fl;
fl = *(int *)v;
for (j=0; truth[j].av_len; j++) {
if (arg->av_len != truth[j].av_len) continue;
if (strcasecmp(arg->av_val, truth[j].av_val)) continue;
fl |= options[i].omisc; break; }
*(int *)v = fl;
}
break;
case OPT_CONN:
if (parseAMF(&r->Link.extras, arg, &r->Link.edepth))
return FALSE;
break;
}
break;
}
if (!options[i].name.av_len) {
RTMP_Log(RTMP_LOGERROR, "Unknown option %s", opt->av_val);
RTMP_OptUsage();
return FALSE;
}
return TRUE;
}
int RTMP_SetupURL(RTMP *r, char *url)
{
AVal opt, arg;
char *p1, *p2, *ptr = strchr(url, ' ');
int ret, len;
unsigned int port = 0;
if (ptr)
*ptr = '\0';
len = strlen(url);
ret = RTMP_ParseURL(url, &r->Link.protocol, &r->Link.hostname,
&port, &r->Link.playpath0, &r->Link.app);
if (!ret)
return ret;
r->Link.port = port;
r->Link.playpath = r->Link.playpath0;
while (ptr) {
*ptr++ = '\0';
p1 = ptr;
p2 = strchr(p1, '=');
if (!p2)
break;
opt.av_val = p1;
opt.av_len = p2 - p1;
*p2++ = '\0';
arg.av_val = p2;
ptr = strchr(p2, ' ');
if (ptr) {
*ptr = '\0';
arg.av_len = ptr - p2;
/* skip repeated spaces */
while(ptr[1] == ' ')
*ptr++ = '\0';
} else {
arg.av_len = strlen(p2);
}
/* unescape */
port = arg.av_len;
for (p1=p2; port >0;) {
if (*p1 == '\\') {
unsigned int c;
if (port < 3)
return FALSE;
sscanf(p1+1, "%02x", &c);
*p2++ = c;
port -= 3;
p1 += 3;
} else {
*p2++ = *p1++;
port--;
}
}
arg.av_len = p2 - arg.av_val;
ret = RTMP_SetOpt(r, &opt, &arg);
if (!ret)
return ret;
}
if (!r->Link.tcUrl.av_len)
{
r->Link.tcUrl.av_val = url;
if (r->Link.app.av_len)
{
if (r->Link.app.av_val < url + len)
{
/* if app is part of original url, just use it */
r->Link.tcUrl.av_len = r->Link.app.av_len + (r->Link.app.av_val - url);
}
else
{
len = r->Link.hostname.av_len + r->Link.app.av_len +
sizeof("rtmpte://:65535/");
r->Link.tcUrl.av_val = malloc(len);
r->Link.tcUrl.av_len = snprintf(r->Link.tcUrl.av_val, len,
"%s://%.*s:%d/%.*s",
RTMPProtocolStringsLower[r->Link.protocol],
r->Link.hostname.av_len, r->Link.hostname.av_val,
r->Link.port,
r->Link.app.av_len, r->Link.app.av_val);
r->Link.lFlags |= RTMP_LF_FTCU;
}
}
else
{
r->Link.tcUrl.av_len = strlen(url);
}
}
#ifdef CRYPTO
if ((r->Link.lFlags & RTMP_LF_SWFV) && r->Link.swfUrl.av_len)
RTMP_HashSWF(r->Link.swfUrl.av_val, &r->Link.SWFSize,
(unsigned char *)r->Link.SWFHash, r->Link.swfAge);
#endif
SocksSetup(r, &r->Link.sockshost);
if (r->Link.port == 0)
{
if (r->Link.protocol & RTMP_FEATURE_SSL)
r->Link.port = 443;
else if (r->Link.protocol & RTMP_FEATURE_HTTP)
r->Link.port = 80;
else
r->Link.port = 1935;
}
return TRUE;
}
static int
add_addr_info(struct sockaddr_in *service, AVal *host, int port)
{
char *hostname;
int ret = TRUE;
if (host->av_val[host->av_len])
{
hostname = malloc(host->av_len+1);
memcpy(hostname, host->av_val, host->av_len);
hostname[host->av_len] = '\0';
}
else
{
hostname = host->av_val;
}
service->sin_addr.s_addr = inet_addr(hostname);
if (service->sin_addr.s_addr == INADDR_NONE)
{
struct hostent *host = gethostbyname(hostname);
if (host == NULL || host->h_addr == NULL)
{
RTMP_Log(RTMP_LOGERROR, "Problem accessing the DNS. (addr: %s)", hostname);
ret = FALSE;
goto finish;
}
service->sin_addr = *(struct in_addr *)host->h_addr;
}
service->sin_port = htons(port);
finish:
if (hostname != host->av_val)
free(hostname);
return ret;
}
int
RTMP_Connect0(RTMP *r, struct sockaddr * service)
{
int on = 1;
r->m_sb.sb_timedout = FALSE;
r->m_pausing = 0;
r->m_fDuration = 0.0;
r->m_sb.sb_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (r->m_sb.sb_socket != -1)
{
if (connect(r->m_sb.sb_socket, service, sizeof(struct sockaddr)) < 0)
{
int err = GetSockError();
RTMP_Log(RTMP_LOGERROR, "%s, failed to connect socket. %d (%s)",
__FUNCTION__, err, strerror(err));
RTMP_Close(r);
return FALSE;
}
if (r->Link.socksport)
{
RTMP_Log(RTMP_LOGDEBUG, "%s ... SOCKS negotiation", __FUNCTION__);
if (!SocksNegotiate(r))
{
RTMP_Log(RTMP_LOGERROR, "%s, SOCKS negotiation failed.", __FUNCTION__);
RTMP_Close(r);
return FALSE;
}
}
}
else
{
RTMP_Log(RTMP_LOGERROR, "%s, failed to create socket. Error: %d", __FUNCTION__,
GetSockError());
return FALSE;
}
/* set timeout */
{
SET_RCVTIMEO(tv, r->Link.timeout);
if (setsockopt
(r->m_sb.sb_socket, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv)))
{
RTMP_Log(RTMP_LOGERROR, "%s, Setting socket timeout to %ds failed!",
__FUNCTION__, r->Link.timeout);
}
}
setsockopt(r->m_sb.sb_socket, IPPROTO_TCP, TCP_NODELAY, (char *) &on, sizeof(on));
return TRUE;
}
int
RTMP_TLS_Accept(RTMP *r, void *ctx)
{
#if defined(CRYPTO) && !defined(NO_SSL)
TLS_server(ctx, r->m_sb.sb_ssl);
TLS_setfd(r->m_sb.sb_ssl, r->m_sb.sb_socket);
if (TLS_accept(r->m_sb.sb_ssl) < 0)
{
RTMP_Log(RTMP_LOGERROR, "%s, TLS_Connect failed", __FUNCTION__);
return FALSE;
}
return TRUE;
#else
return FALSE;
#endif
}
int
RTMP_Connect1(RTMP *r, RTMPPacket *cp)
{
if (r->Link.protocol & RTMP_FEATURE_SSL)
{
#if defined(CRYPTO) && !defined(NO_SSL)
TLS_client(RTMP_TLS_ctx, r->m_sb.sb_ssl);
TLS_setfd(r->m_sb.sb_ssl, r->m_sb.sb_socket);
if (TLS_connect(r->m_sb.sb_ssl) < 0)
{
RTMP_Log(RTMP_LOGERROR, "%s, TLS_Connect failed", __FUNCTION__);
RTMP_Close(r);
return FALSE;
}
#else
RTMP_Log(RTMP_LOGERROR, "%s, no SSL/TLS support", __FUNCTION__);
RTMP_Close(r);
return FALSE;
#endif
}
if (r->Link.protocol & RTMP_FEATURE_HTTP)
{