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/*
* Network layer for MPlayer
* by Bertrand BAUDET <bertrand_baudet@yahoo.com>
* (C) 2001, MPlayer team.
*/
#include <unistd.h>
#include <netinet/in.h>
#include <netdb.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "network.h"
#include "http.h"
#include "url.h"
#include "asf.h"
// Connect to a server using a TCP connection
int
connect2Server(char *host, int port) {
int socket_server_fd;
struct sockaddr_in server_address;
printf("Connecting to server %s:%d ...\n", host, port );
socket_server_fd = socket(AF_INET, SOCK_STREAM, 0);
if( socket_server_fd==-1 ) {
perror("Failed to create socket");
return -1;
}
if( isalpha(host[0]) ) {
struct hostent *hp =(struct hostent*)gethostbyname( host );
if( hp==NULL ) {
printf("Unknown host: %s\n", host);
return -1;
}
memcpy( (void*)&server_address.sin_addr.s_addr, (void*)hp->h_addr, hp->h_length );
} else {
inet_pton(AF_INET, host, &server_address.sin_addr);
}
server_address.sin_family=AF_INET;
server_address.sin_port=htons(port);
if( connect( socket_server_fd, (struct sockaddr*)&server_address, sizeof(server_address) )==-1 ) {
perror("Failed to connect to server");
close(socket_server_fd);
return -1;
}
return socket_server_fd;
}
// By using the protocol, the extension of the file or the content-type
// we might be able to guess the streaming type.
int
autodetectProtocol(URL_t *url, int *fd_out) {
HTTP_header_t *http_hdr;
int fd=-1;
int i;
char *extension;
char *content_type;
char *next_url;
char response[1024];
redo_request:
*fd_out=-1;
next_url = NULL;
extension = NULL;
content_type = NULL;
if( url==NULL ) return STREAMING_TYPE_UNKNOWN;
// Get the extension of the file if present
if( url->file!=NULL ) {
for( i=strlen(url->file) ; i>0 ; i-- ) {
if( url->file[i]=='.' ) {
extension=(url->file)+i+1;
break;
}
}
}
if( extension!=NULL ) {
printf("Extension: %s\n", extension );
if( !strcasecmp(extension, "asf") ||
!strcasecmp(extension, "wmv") ||
!strcasecmp(extension, "asx") ) {
if( url->port==0 ) url->port = 80;
return STREAMING_TYPE_ASF;
}
}
// Checking for RTSP
if( !strcasecmp(url->protocol, "rtsp") ) {
printf("RTSP protocol not yet implemented!\n");
return STREAMING_TYPE_UNKNOWN;
}
// Checking for ASF
if( !strcasecmp(url->protocol, "mms") ) {
if( url->port==0 ) url->port = 80;
return STREAMING_TYPE_ASF;
}
// HTTP based protocol
if( !strcasecmp(url->protocol, "http") ) {
if( url->port==0 ) url->port = 80;
http_hdr = http_new_header();
http_set_uri( http_hdr, url->file );
http_set_field( http_hdr, "User-Agent: MPlayer");
http_set_field( http_hdr, "Connection: closed");
if( http_build_request( http_hdr )==NULL ) {
return STREAMING_TYPE_UNKNOWN;
}
fd = connect2Server( url->hostname, url->port );
if( fd<0 ) {
*fd_out=-1;
return STREAMING_TYPE_UNKNOWN;
}
write( fd, http_hdr->buffer, http_hdr->buffer_size );
// http_free( http_hdr );
http_hdr = http_new_header();
if( http_hdr==NULL ) {
close( fd );
*fd_out=-1;
return STREAMING_TYPE_UNKNOWN;
}
do {
i = read( fd, response, 1024 );
http_response_append( http_hdr, response, i );
} while( !http_is_header_entired( http_hdr ) );
http_response_parse( http_hdr );
*fd_out=fd;
//http_debug_hdr( http_hdr );
// Check if the response is an ICY status_code reason_phrase
if( !strcasecmp(http_hdr->protocol, "ICY") ) {
// Ok, we have detected an mp3 streaming
return STREAMING_TYPE_MP3;
}
switch( http_hdr->status_code ) {
case 200: // OK
// Look if we can use the Content-Type
content_type = http_get_field( http_hdr, "Content-Type" );
if( content_type!=NULL ) {
printf("Content-Type: %s\n", content_type );
// Check for ASF
if( asf_http_streaming_type(content_type, NULL)!=ASF_Unknown_e ) {
return STREAMING_TYPE_ASF;
}
// Check for MP3 streaming
// Some MP3 streaming server answer with audio/mpeg
if( !strcasecmp(content_type, "audio/mpeg") ) {
return STREAMING_TYPE_MP3;
}
}
break;
// Redirect
case 301: // Permanently
case 302: // Temporarily
// RFC 2616, recommand to detect infinite redirection loops
next_url = http_get_field( http_hdr, "Location" );
if( next_url!=NULL ) {
close( fd );
url_free( url );
url_new( next_url );
goto redo_request;
}
//break;
default:
printf("Server returned %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
close( fd );
*fd_out=-1;
return STREAMING_TYPE_UNKNOWN;
}
}
return STREAMING_TYPE_UNKNOWN;
}
void
network_streaming() {
int ret;
/*
do {
ret = select( );
} while( );
*/
}
int
streaming_start(URL_t **url, int fd, int streaming_type) {
switch( streaming_type ) {
case STREAMING_TYPE_ASF:
// Send a the appropriate HTTP request
if( fd>0 ) close( fd );
fd = asf_http_streaming_start( url );
break;
case STREAMING_TYPE_MP3:
// Nothing else to do the server is already feeding the pipe.
break;
case STREAMING_TYPE_UNKNOWN:
default:
printf("Unable to detect the streaming type\n");
close( fd );
return -1;
}
return fd;
}
int
streaming_stop( ) {
}
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