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mpv/libmpdemux/network.c

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/*
* Network layer for MPlayer
* by Bertrand BAUDET <bertrand_baudet@yahoo.com>
* (C) 2001, MPlayer team.
*/
//#define DUMP2FILE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <ctype.h>
#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#ifndef HAVE_WINSOCK2
#define closesocket close
#else
#include <winsock2.h>
#include <ws2tcpip.h>
#endif
#include "stream.h"
#include "demuxer.h"
#include "m_config.h"
#include "network.h"
#include "http.h"
#include "cookies.h"
#include "url.h"
#include "version.h"
extern int verbose;
extern int stream_cache_size;
extern int mp_input_check_interrupt(int time);
/* Variables for the command line option -user, -passwd, -bandwidth,
-user-agent and -nocookies */
char *network_username=NULL;
char *network_password=NULL;
int network_bandwidth=0;
int network_cookies_enabled = 0;
char *network_useragent=NULL;
/* IPv6 options */
int network_prefer_ipv4 = 0;
int network_ipv4_only_proxy = 0;
mime_struct_t mime_type_table[] = {
// MP3 streaming, some MP3 streaming server answer with audio/mpeg
{ "audio/mpeg", DEMUXER_TYPE_AUDIO },
// MPEG streaming
{ "video/mpeg", DEMUXER_TYPE_UNKNOWN },
{ "video/x-mpeg", DEMUXER_TYPE_UNKNOWN },
{ "video/x-mpeg2", DEMUXER_TYPE_UNKNOWN },
// AVI ??? => video/x-msvideo
{ "video/x-msvideo", DEMUXER_TYPE_AVI },
// MOV => video/quicktime
{ "video/quicktime", DEMUXER_TYPE_MOV },
// ASF
{ "audio/x-ms-wax", DEMUXER_TYPE_ASF },
{ "audio/x-ms-wma", DEMUXER_TYPE_ASF },
{ "video/x-ms-asf", DEMUXER_TYPE_ASF },
{ "video/x-ms-afs", DEMUXER_TYPE_ASF },
{ "video/x-ms-wvx", DEMUXER_TYPE_ASF },
{ "video/x-ms-wmv", DEMUXER_TYPE_ASF },
{ "video/x-ms-wma", DEMUXER_TYPE_ASF },
// Playlists
{ "video/x-ms-wmx", DEMUXER_TYPE_PLAYLIST },
{ "audio/x-scpls", DEMUXER_TYPE_PLAYLIST },
{ "audio/x-mpegurl", DEMUXER_TYPE_PLAYLIST },
{ "audio/x-pls", DEMUXER_TYPE_PLAYLIST },
// Real Media
// { "audio/x-pn-realaudio", DEMUXER_TYPE_REAL },
// OGG Streaming
{ "application/x-ogg", DEMUXER_TYPE_OGG },
// NullSoft Streaming Video
{ "video/nsv", DEMUXER_TYPE_NSV},
{ "misc/ultravox", DEMUXER_TYPE_NSV},
{ NULL, DEMUXER_TYPE_UNKNOWN},
};
streaming_ctrl_t *
streaming_ctrl_new( ) {
streaming_ctrl_t *streaming_ctrl;
streaming_ctrl = (streaming_ctrl_t*)malloc(sizeof(streaming_ctrl_t));
if( streaming_ctrl==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,MSGTR_MemAllocFailed);
return NULL;
}
memset( streaming_ctrl, 0, sizeof(streaming_ctrl_t) );
return streaming_ctrl;
}
void
streaming_ctrl_free( streaming_ctrl_t *streaming_ctrl ) {
if( streaming_ctrl==NULL ) return;
if( streaming_ctrl->url ) url_free( streaming_ctrl->url );
if( streaming_ctrl->buffer ) free( streaming_ctrl->buffer );
if( streaming_ctrl->data ) free( streaming_ctrl->data );
free( streaming_ctrl );
}
// Converts an address family constant to a string
char *af2String(int af) {
switch (af) {
case AF_INET: return "AF_INET";
#ifdef HAVE_AF_INET6
case AF_INET6: return "AF_INET6";
#endif
default: return "Unknown address family!";
}
}
// Connect to a server using a TCP connection, with specified address family
// return -2 for fatal error, like unable to resolve name, connection timeout...
// return -1 is unable to connect to a particular port
int
connect2Server_with_af(char *host, int port, int af,int verb) {
int socket_server_fd;
int err, err_len;
int ret,count = 0;
fd_set set;
struct timeval tv;
union {
struct sockaddr_in four;
#ifdef HAVE_AF_INET6
struct sockaddr_in6 six;
#endif
} server_address;
size_t server_address_size;
void *our_s_addr; // Pointer to sin_addr or sin6_addr
struct hostent *hp=NULL;
char buf[255];
#ifdef HAVE_WINSOCK2
u_long val;
#endif
socket_server_fd = socket(af, SOCK_STREAM, 0);
if( socket_server_fd==-1 ) {
// mp_msg(MSGT_NETWORK,MSGL_ERR,"Failed to create %s socket:\n", af2String(af));
return -2;
}
switch (af) {
case AF_INET: our_s_addr = (void *) &server_address.four.sin_addr; break;
#ifdef HAVE_AF_INET6
case AF_INET6: our_s_addr = (void *) &server_address.six.sin6_addr; break;
#endif
default:
mp_msg(MSGT_NETWORK,MSGL_ERR, MSGTR_MPDEMUX_NW_UnknownAF, af);
return -2;
}
memset(&server_address, 0, sizeof(server_address));
#ifndef HAVE_WINSOCK2
#ifdef USE_ATON
if (inet_aton(host, our_s_addr)!=1)
#else
if (inet_pton(af, host, our_s_addr)!=1)
#endif
#else
if ( inet_addr(host)==INADDR_NONE )
#endif
{
if(verb) mp_msg(MSGT_NETWORK,MSGL_STATUS,MSGTR_MPDEMUX_NW_ResolvingHostForAF, host, af2String(af));
#ifdef HAVE_GETHOSTBYNAME2
hp=(struct hostent*)gethostbyname2( host, af );
#else
hp=(struct hostent*)gethostbyname( host );
#endif
if( hp==NULL ) {
if(verb) mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_NW_CantResolv, af2String(af), host);
return -2;
}
memcpy( our_s_addr, (void*)hp->h_addr, hp->h_length );
}
#ifdef HAVE_WINSOCK2
else {
unsigned long addr = inet_addr(host);
memcpy( our_s_addr, (void*)&addr, sizeof(addr) );
}
#endif
switch (af) {
case AF_INET:
server_address.four.sin_family=af;
server_address.four.sin_port=htons(port);
server_address_size = sizeof(server_address.four);
break;
#ifdef HAVE_AF_INET6
case AF_INET6:
server_address.six.sin6_family=af;
server_address.six.sin6_port=htons(port);
server_address_size = sizeof(server_address.six);
break;
#endif
default:
mp_msg(MSGT_NETWORK,MSGL_ERR, MSGTR_MPDEMUX_NW_UnknownAF, af);
return -2;
}
#if defined(USE_ATON) || defined(HAVE_WINSOCK2)
strncpy( buf, inet_ntoa( *((struct in_addr*)our_s_addr) ), 255);
#else
inet_ntop(af, our_s_addr, buf, 255);
#endif
if(verb) mp_msg(MSGT_NETWORK,MSGL_STATUS,MSGTR_MPDEMUX_NW_ConnectingToServer, host, buf , port );
// Turn the socket as non blocking so we can timeout on the connection
#ifndef HAVE_WINSOCK2
fcntl( socket_server_fd, F_SETFL, fcntl(socket_server_fd, F_GETFL) | O_NONBLOCK );
#else
val = 1;
ioctlsocket( socket_server_fd, FIONBIO, &val );
#endif
if( connect( socket_server_fd, (struct sockaddr*)&server_address, server_address_size )==-1 ) {
#ifndef HAVE_WINSOCK2
if( errno!=EINPROGRESS ) {
#else
if( (WSAGetLastError() != WSAEINPROGRESS) && (WSAGetLastError() != WSAEWOULDBLOCK) ) {
#endif
if(verb) mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_NW_CantConnect2Server, af2String(af));
closesocket(socket_server_fd);
return -1;
}
}
tv.tv_sec = 0;
tv.tv_usec = 500000;
FD_ZERO( &set );
FD_SET( socket_server_fd, &set );
// When the connection will be made, we will have a writable fd
while((ret = select(socket_server_fd+1, NULL, &set, NULL, &tv)) == 0) {
if( ret<0 ) mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_NW_SelectFailed);
else if(ret > 0) break;
else if(count > 30 || mp_input_check_interrupt(500)) {
if(count > 30)
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_NW_ConnTimeout);
else
mp_msg(MSGT_NETWORK,MSGL_V,"Connection interuppted by user\n");
return -3;
}
count++;
FD_ZERO( &set );
FD_SET( socket_server_fd, &set );
tv.tv_sec = 0;
tv.tv_usec = 500000;
}
// Turn back the socket as blocking
#ifndef HAVE_WINSOCK2
fcntl( socket_server_fd, F_SETFL, fcntl(socket_server_fd, F_GETFL) & ~O_NONBLOCK );
#else
val = 0;
ioctlsocket( socket_server_fd, FIONBIO, &val );
#endif
// Check if there were any error
err_len = sizeof(int);
ret = getsockopt(socket_server_fd,SOL_SOCKET,SO_ERROR,&err,&err_len);
if(ret < 0) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_NW_GetSockOptFailed,strerror(errno));
return -2;
}
if(err > 0) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_NW_ConnectError,strerror(err));
return -1;
}
return socket_server_fd;
}
// Connect to a server using a TCP connection
// return -2 for fatal error, like unable to resolve name, connection timeout...
// return -1 is unable to connect to a particular port
int
connect2Server(char *host, int port, int verb) {
#ifdef HAVE_AF_INET6
int r;
int s = -2;
r = connect2Server_with_af(host, port, network_prefer_ipv4 ? AF_INET:AF_INET6,verb);
if (r > -1) return r;
s = connect2Server_with_af(host, port, network_prefer_ipv4 ? AF_INET6:AF_INET,verb);
if (s == -2) return r;
return s;
#else
return connect2Server_with_af(host, port, AF_INET,verb);
#endif
}
URL_t*
check4proxies( URL_t *url ) {
URL_t *url_out = NULL;
if( url==NULL ) return NULL;
url_out = url_new( url->url );
if( !strcasecmp(url->protocol, "http_proxy") ) {
mp_msg(MSGT_NETWORK,MSGL_V,"Using HTTP proxy: http://%s:%d\n", url->hostname, url->port );
return url_out;
}
// Check if the http_proxy environment variable is set.
if( !strcasecmp(url->protocol, "http") ) {
char *proxy;
proxy = getenv("http_proxy");
if( proxy!=NULL ) {
// We got a proxy, build the URL to use it
int len;
char *new_url;
URL_t *tmp_url;
URL_t *proxy_url = url_new( proxy );
if( proxy_url==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_WARN,
MSGTR_MPDEMUX_NW_InvalidProxySettingTryingWithout);
return url_out;
}
#ifdef HAVE_AF_INET6
if (network_ipv4_only_proxy && (gethostbyname(url->hostname)==NULL)) {
mp_msg(MSGT_NETWORK,MSGL_WARN,
MSGTR_MPDEMUX_NW_CantResolvTryingWithoutProxy);
url_free(proxy_url);
return url_out;
}
#endif
mp_msg(MSGT_NETWORK,MSGL_V,"Using HTTP proxy: %s\n", proxy_url->url );
len = strlen( proxy_url->hostname ) + strlen( url->url ) + 20; // 20 = http_proxy:// + port
new_url = malloc( len+1 );
if( new_url==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,MSGTR_MemAllocFailed);
url_free(proxy_url);
return url_out;
}
sprintf(new_url, "http_proxy://%s:%d/%s", proxy_url->hostname, proxy_url->port, url->url );
tmp_url = url_new( new_url );
if( tmp_url==NULL ) {
free( new_url );
url_free( proxy_url );
return url_out;
}
url_free( url_out );
url_out = tmp_url;
free( new_url );
url_free( proxy_url );
}
}
return url_out;
}
int
http_send_request( URL_t *url, off_t pos ) {
HTTP_header_t *http_hdr;
URL_t *server_url;
char str[256];
int fd;
int ret;
int proxy = 0; // Boolean
http_hdr = http_new_header();
if( !strcasecmp(url->protocol, "http_proxy") ) {
proxy = 1;
server_url = url_new( (url->file)+1 );
http_set_uri( http_hdr, server_url->url );
} else {
server_url = url;
http_set_uri( http_hdr, server_url->file );
}
if (server_url->port && server_url->port != 80)
snprintf(str, 256, "Host: %s:%d", server_url->hostname, server_url->port );
else
snprintf(str, 256, "Host: %s", server_url->hostname );
http_set_field( http_hdr, str);
if (network_useragent)
{
snprintf(str, 256, "User-Agent: %s", network_useragent);
http_set_field(http_hdr, str);
}
else
http_set_field( http_hdr, "User-Agent: MPlayer/"VERSION);
http_set_field(http_hdr, "Icy-MetaData: 1");
if(pos>0) {
// Extend http_send_request with possibility to do partial content retrieval
snprintf(str, 256, "Range: bytes=%"PRId64"-", (int64_t)pos);
http_set_field(http_hdr, str);
}
if (network_cookies_enabled) cookies_set( http_hdr, server_url->hostname, server_url->url );
http_set_field( http_hdr, "Connection: close");
http_add_basic_authentication( http_hdr, url->username, url->password );
if( http_build_request( http_hdr )==NULL ) {
goto err_out;
}
if( proxy ) {
if( url->port==0 ) url->port = 8080; // Default port for the proxy server
fd = connect2Server( url->hostname, url->port,1 );
url_free( server_url );
} else {
if( server_url->port==0 ) server_url->port = 80; // Default port for the web server
fd = connect2Server( server_url->hostname, server_url->port,1 );
}
if( fd<0 ) {
goto err_out;
}
mp_msg(MSGT_NETWORK,MSGL_DBG2,"Request: [%s]\n", http_hdr->buffer );
ret = send( fd, http_hdr->buffer, http_hdr->buffer_size, 0 );
if( ret!=(int)http_hdr->buffer_size ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_NW_ErrSendingHTTPRequest);
goto err_out;
}
http_free( http_hdr );
return fd;
err_out:
http_free(http_hdr);
return -1;
}
HTTP_header_t *
http_read_response( int fd ) {
HTTP_header_t *http_hdr;
char response[BUFFER_SIZE];
int i;
http_hdr = http_new_header();
if( http_hdr==NULL ) {
return NULL;
}
do {
i = recv( fd, response, BUFFER_SIZE, 0 );
if( i<0 ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_NW_ReadFailed);
http_free( http_hdr );
return NULL;
}
if( i==0 ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_NW_Read0CouldBeEOF);
http_free( http_hdr );
return NULL;
}
http_response_append( http_hdr, response, i );
} while( !http_is_header_entire( http_hdr ) );
http_response_parse( http_hdr );
return http_hdr;
}
int
http_authenticate(HTTP_header_t *http_hdr, URL_t *url, int *auth_retry) {
char *aut;
if( *auth_retry==1 ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_NW_AuthFailed);
return -1;
}
if( *auth_retry>0 ) {
if( url->username ) {
free( url->username );
url->username = NULL;
}
if( url->password ) {
free( url->password );
url->password = NULL;
}
}
aut = http_get_field(http_hdr, "WWW-Authenticate");
if( aut!=NULL ) {
char *aut_space;
aut_space = strstr(aut, "realm=");
if( aut_space!=NULL ) aut_space += 6;
mp_msg(MSGT_NETWORK,MSGL_INFO,MSGTR_MPDEMUX_NW_AuthRequiredFor, aut_space);
} else {
mp_msg(MSGT_NETWORK,MSGL_INFO,MSGTR_MPDEMUX_NW_AuthRequired);
}
if( network_username ) {
url->username = strdup(network_username);
if( url->username==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,MSGTR_MemAllocFailed);
return -1;
}
} else {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_NW_AuthFailed);
return -1;
}
if( network_password ) {
url->password = strdup(network_password);
if( url->password==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,MSGTR_MemAllocFailed);
return -1;
}
} else {
mp_msg(MSGT_NETWORK,MSGL_INFO,MSGTR_MPDEMUX_NW_NoPasswdProvidedTryingBlank);
}
(*auth_retry)++;
return 0;
}
int
http_seek( stream_t *stream, off_t pos ) {
HTTP_header_t *http_hdr = NULL;
int fd;
if( stream==NULL ) return 0;
if( stream->fd>0 ) closesocket(stream->fd); // need to reconnect to seek in http-stream
fd = http_send_request( stream->streaming_ctrl->url, pos );
if( fd<0 ) return 0;
http_hdr = http_read_response( fd );
if( http_hdr==NULL ) return 0;
switch( http_hdr->status_code ) {
case 200:
case 206: // OK
mp_msg(MSGT_NETWORK,MSGL_V,"Content-Type: [%s]\n", http_get_field(http_hdr, "Content-Type") );
mp_msg(MSGT_NETWORK,MSGL_V,"Content-Length: [%s]\n", http_get_field(http_hdr, "Content-Length") );
if( http_hdr->body_size>0 ) {
if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
http_free( http_hdr );
return -1;
}
}
break;
default:
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_NW_ErrServerReturned, http_hdr->status_code, http_hdr->reason_phrase );
close( fd );
fd = -1;
}
stream->fd = fd;
if( http_hdr ) {
http_free( http_hdr );
stream->streaming_ctrl->data = NULL;
}
stream->pos=pos;
return 1;
}
int
streaming_bufferize( streaming_ctrl_t *streaming_ctrl, char *buffer, int size) {
//printf("streaming_bufferize\n");
streaming_ctrl->buffer = (char*)malloc(size);
if( streaming_ctrl->buffer==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,MSGTR_MemAllocFailed);
return -1;
}
memcpy( streaming_ctrl->buffer, buffer, size );
streaming_ctrl->buffer_size = size;
return size;
}
int
nop_streaming_read( int fd, char *buffer, int size, streaming_ctrl_t *stream_ctrl ) {
int len=0;
//printf("nop_streaming_read\n");
if( stream_ctrl->buffer_size!=0 ) {
int buffer_len = stream_ctrl->buffer_size-stream_ctrl->buffer_pos;
//printf("%d bytes in buffer\n", stream_ctrl->buffer_size);
len = (size<buffer_len)?size:buffer_len;
memcpy( buffer, (stream_ctrl->buffer)+(stream_ctrl->buffer_pos), len );
stream_ctrl->buffer_pos += len;
//printf("buffer_pos = %d\n", stream_ctrl->buffer_pos );
if( stream_ctrl->buffer_pos>=stream_ctrl->buffer_size ) {
free( stream_ctrl->buffer );
stream_ctrl->buffer = NULL;
stream_ctrl->buffer_size = 0;
stream_ctrl->buffer_pos = 0;
//printf("buffer cleaned\n");
}
//printf("read %d bytes from buffer\n", len );
}
if( len<size ) {
int ret;
ret = recv( fd, buffer+len, size-len, 0 );
if( ret<0 ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,"nop_streaming_read error : %s\n",strerror(errno));
}
len += ret;
//printf("read %d bytes from network\n", len );
}
return len;
}
int
nop_streaming_seek( int fd, off_t pos, streaming_ctrl_t *stream_ctrl ) {
return -1;
// To shut up gcc warning
fd++;
pos++;
stream_ctrl=NULL;
}
void fixup_network_stream_cache(stream_t *stream) {
if(stream->streaming_ctrl->buffering) {
if(stream_cache_size<0) {
// cache option not set, will use our computed value.
// buffer in KBytes, *5 because the prefill is 20% of the buffer.
stream_cache_size = (stream->streaming_ctrl->prebuffer_size/1024)*5;
if( stream_cache_size<64 ) stream_cache_size = 64; // 16KBytes min buffer
}
mp_msg(MSGT_NETWORK,MSGL_INFO,MSGTR_MPDEMUX_NW_CacheSizeSetTo, stream_cache_size);
}
}
int
streaming_stop( stream_t *stream ) {
stream->streaming_ctrl->status = streaming_stopped_e;
return 0;
}
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