mpv/stream/http.c

1013 lines
29 KiB
C

/*
* HTTP Helper
*
* Copyright (C) 2001 Bertrand Baudet <bertrand_baudet@yahoo.com>
*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer 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 General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#if !HAVE_WINSOCK2_H
#else
#include <winsock2.h>
#include <ws2tcpip.h>
#endif
#include "http.h"
#include "url.h"
#include "mp_msg.h"
#include "stream.h"
#include "libmpdemux/demuxer.h"
#include "network.h"
extern const mime_struct_t mime_type_table[];
extern int stream_cache_size;
extern int network_bandwidth;
typedef struct {
unsigned metaint;
unsigned metapos;
int is_ultravox;
} scast_data_t;
/**
* \brief first read any data from sc->buffer then from fd
* \param fd file descriptor to read data from
* \param buffer buffer to read into
* \param len how many bytes to read
* \param sc streaming control containing buffer to read from first
* \return len unless there is a read error or eof
*/
static unsigned my_read(int fd, char *buffer, int len, streaming_ctrl_t *sc) {
unsigned pos = 0;
unsigned cp_len = sc->buffer_size - sc->buffer_pos;
if (cp_len > len)
cp_len = len;
memcpy(buffer, &sc->buffer[sc->buffer_pos], cp_len);
sc->buffer_pos += cp_len;
pos += cp_len;
while (pos < len) {
int ret = recv(fd, &buffer[pos], len - pos, 0);
if (ret <= 0)
break;
pos += ret;
}
return pos;
}
/**
* \brief read and process (i.e. discard *g*) a block of ultravox metadata
* \param fd file descriptor to read from
* \param sc streaming_ctrl_t whose buffer is consumed before reading from fd
* \return number of real data before next metadata block starts or 0 on error
*/
static unsigned uvox_meta_read(int fd, streaming_ctrl_t *sc) {
unsigned metaint;
unsigned char info[6] = {0, 0, 0, 0, 0, 0};
int info_read;
do {
info_read = my_read(fd, info, 1, sc);
if (info[0] == 0x00)
info_read = my_read(fd, info, 6, sc);
else
info_read += my_read(fd, &info[1], 5, sc);
if (info_read != 6) // read error or eof
return 0;
// sync byte and reserved flags
if (info[0] != 0x5a || (info[1] & 0xfc) != 0x00) {
mp_msg(MSGT_DEMUXER, MSGL_ERR, "Invalid or unknown uvox metadata\n");
return 0;
}
if (info[1] & 0x01)
mp_msg(MSGT_DEMUXER, MSGL_WARN, "Encrypted ultravox data\n");
metaint = info[4] << 8 | info[5];
if ((info[3] & 0xf) < 0x07) { // discard any metadata nonsense
char *metabuf = malloc(metaint);
my_read(fd, metabuf, metaint, sc);
free(metabuf);
}
} while ((info[3] & 0xf) < 0x07);
return metaint;
}
/**
* \brief read one scast meta data entry and print it
* \param fd file descriptor to read from
* \param sc streaming_ctrl_t whose buffer is consumed before reading from fd
*/
static void scast_meta_read(int fd, streaming_ctrl_t *sc) {
unsigned char tmp = 0;
unsigned metalen;
my_read(fd, &tmp, 1, sc);
metalen = tmp * 16;
if (metalen > 0) {
int i;
uint8_t *info = malloc(metalen + 1);
unsigned nlen = my_read(fd, info, metalen, sc);
// avoid breaking the user's terminal too much
if (nlen > 256) nlen = 256;
for (i = 0; i < nlen; i++)
if (info[i] && info[i] < 32) info[i] = '?';
info[nlen] = 0;
mp_msg(MSGT_DEMUXER, MSGL_INFO, "\nICY Info: %s\n", info);
free(info);
}
}
/**
* \brief read data from scast/ultravox stream without any metadata
* \param fd file descriptor to read from
* \param buffer buffer to read data into
* \param size number of bytes to read
* \param sc streaming_ctrl_t whose buffer is consumed before reading from fd
*/
static int scast_streaming_read(int fd, char *buffer, int size,
streaming_ctrl_t *sc) {
scast_data_t *sd = (scast_data_t *)sc->data;
unsigned block, ret;
unsigned done = 0;
// first read remaining data up to next metadata
block = sd->metaint - sd->metapos;
if (block > size)
block = size;
ret = my_read(fd, buffer, block, sc);
sd->metapos += ret;
done += ret;
if (ret != block) // read problems or eof
size = done;
while (done < size) { // now comes the metadata
if (sd->is_ultravox)
{
sd->metaint = uvox_meta_read(fd, sc);
if (!sd->metaint)
size = done;
}
else
scast_meta_read(fd, sc); // read and display metadata
sd->metapos = 0;
block = size - done;
if (block > sd->metaint)
block = sd->metaint;
ret = my_read(fd, &buffer[done], block, sc);
sd->metapos += ret;
done += ret;
if (ret != block) // read problems or eof
size = done;
}
return done;
}
static int scast_streaming_start(stream_t *stream) {
int metaint;
scast_data_t *scast_data;
HTTP_header_t *http_hdr = stream->streaming_ctrl->data;
int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
if (!stream || stream->fd < 0 || !http_hdr)
return -1;
if (is_ultravox)
metaint = 0;
else {
metaint = atoi(http_get_field(http_hdr, "Icy-MetaInt"));
if (metaint <= 0)
return -1;
}
stream->streaming_ctrl->buffer = malloc(http_hdr->body_size);
stream->streaming_ctrl->buffer_size = http_hdr->body_size;
stream->streaming_ctrl->buffer_pos = 0;
memcpy(stream->streaming_ctrl->buffer, http_hdr->body, http_hdr->body_size);
scast_data = malloc(sizeof(scast_data_t));
scast_data->metaint = metaint;
scast_data->metapos = 0;
scast_data->is_ultravox = is_ultravox;
http_free(http_hdr);
stream->streaming_ctrl->data = scast_data;
stream->streaming_ctrl->streaming_read = scast_streaming_read;
stream->streaming_ctrl->streaming_seek = NULL;
stream->streaming_ctrl->prebuffer_size = 64 * 1024; // 64 KBytes
stream->streaming_ctrl->buffering = 1;
stream->streaming_ctrl->status = streaming_playing_e;
return 0;
}
static int nop_streaming_start( stream_t *stream ) {
HTTP_header_t *http_hdr = NULL;
char *next_url=NULL;
URL_t *rd_url=NULL;
int fd,ret;
if( stream==NULL ) return -1;
fd = stream->fd;
if( fd<0 ) {
fd = http_send_request( stream->streaming_ctrl->url, 0 );
if( fd<0 ) return -1;
http_hdr = http_read_response( fd );
if( http_hdr==NULL ) return -1;
switch( http_hdr->status_code ) {
case 200: // 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;
// Redirect
case 301: // Permanently
case 302: // Temporarily
case 303: // See Other
ret=-1;
next_url = http_get_field( http_hdr, "Location" );
if (next_url != NULL)
rd_url=url_new(next_url);
if (next_url != NULL && rd_url != NULL) {
mp_msg(MSGT_NETWORK,MSGL_STATUS,"Redirected: Using this url instead %s\n",next_url);
stream->streaming_ctrl->url=check4proxies(rd_url);
ret=nop_streaming_start(stream); //recursively get streaming started
} else {
mp_msg(MSGT_NETWORK,MSGL_ERR,"Redirection failed\n");
closesocket( fd );
fd = -1;
}
return ret;
break;
case 401: //Authorization required
case 403: //Forbidden
case 404: //Not found
case 500: //Server Error
default:
mp_msg(MSGT_NETWORK,MSGL_ERR,"Server returned code %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
closesocket( fd );
fd = -1;
return -1;
break;
}
stream->fd = fd;
} else {
http_hdr = (HTTP_header_t*)stream->streaming_ctrl->data;
if( http_hdr->body_size>0 ) {
if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
http_free( http_hdr );
stream->streaming_ctrl->data = NULL;
return -1;
}
}
}
if( http_hdr ) {
http_free( http_hdr );
stream->streaming_ctrl->data = NULL;
}
stream->streaming_ctrl->streaming_read = nop_streaming_read;
stream->streaming_ctrl->streaming_seek = nop_streaming_seek;
stream->streaming_ctrl->prebuffer_size = 64*1024; // 64 KBytes
stream->streaming_ctrl->buffering = 1;
stream->streaming_ctrl->status = streaming_playing_e;
return 0;
}
HTTP_header_t *
http_new_header(void) {
HTTP_header_t *http_hdr;
http_hdr = malloc(sizeof(HTTP_header_t));
if( http_hdr==NULL ) return NULL;
memset( http_hdr, 0, sizeof(HTTP_header_t) );
return http_hdr;
}
void
http_free( HTTP_header_t *http_hdr ) {
HTTP_field_t *field, *field2free;
if( http_hdr==NULL ) return;
if( http_hdr->protocol!=NULL ) free( http_hdr->protocol );
if( http_hdr->uri!=NULL ) free( http_hdr->uri );
if( http_hdr->reason_phrase!=NULL ) free( http_hdr->reason_phrase );
if( http_hdr->field_search!=NULL ) free( http_hdr->field_search );
if( http_hdr->method!=NULL ) free( http_hdr->method );
if( http_hdr->buffer!=NULL ) free( http_hdr->buffer );
field = http_hdr->first_field;
while( field!=NULL ) {
field2free = field;
if (field->field_name)
free(field->field_name);
field = field->next;
free( field2free );
}
free( http_hdr );
http_hdr = NULL;
}
int
http_response_append( HTTP_header_t *http_hdr, char *response, int length ) {
if( http_hdr==NULL || response==NULL || length<0 ) return -1;
if( (unsigned)length > SIZE_MAX - http_hdr->buffer_size - 1) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,"Bad size in memory (re)allocation\n");
return -1;
}
http_hdr->buffer = realloc( http_hdr->buffer, http_hdr->buffer_size+length+1 );
if( http_hdr->buffer==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory (re)allocation failed\n");
return -1;
}
memcpy( http_hdr->buffer+http_hdr->buffer_size, response, length );
http_hdr->buffer_size += length;
http_hdr->buffer[http_hdr->buffer_size]=0; // close the string!
return http_hdr->buffer_size;
}
int
http_is_header_entire( HTTP_header_t *http_hdr ) {
if( http_hdr==NULL ) return -1;
if( http_hdr->buffer==NULL ) return 0; // empty
if( strstr(http_hdr->buffer, "\r\n\r\n")==NULL &&
strstr(http_hdr->buffer, "\n\n")==NULL ) return 0;
return 1;
}
int
http_response_parse( HTTP_header_t *http_hdr ) {
char *hdr_ptr, *ptr;
char *field=NULL;
int pos_hdr_sep, hdr_sep_len;
size_t len;
if( http_hdr==NULL ) return -1;
if( http_hdr->is_parsed ) return 0;
// Get the protocol
hdr_ptr = strstr( http_hdr->buffer, " " );
if( hdr_ptr==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. No space separator found.\n");
return -1;
}
len = hdr_ptr-http_hdr->buffer;
http_hdr->protocol = malloc(len+1);
if( http_hdr->protocol==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
return -1;
}
strncpy( http_hdr->protocol, http_hdr->buffer, len );
http_hdr->protocol[len]='\0';
if( !strncasecmp( http_hdr->protocol, "HTTP", 4) ) {
if( sscanf( http_hdr->protocol+5,"1.%d", &(http_hdr->http_minor_version) )!=1 ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get HTTP minor version.\n");
return -1;
}
}
// Get the status code
if( sscanf( ++hdr_ptr, "%d", &(http_hdr->status_code) )!=1 ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get status code.\n");
return -1;
}
hdr_ptr += 4;
// Get the reason phrase
ptr = strstr( hdr_ptr, "\n" );
if( hdr_ptr==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get the reason phrase.\n");
return -1;
}
len = ptr-hdr_ptr;
http_hdr->reason_phrase = malloc(len+1);
if( http_hdr->reason_phrase==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
return -1;
}
strncpy( http_hdr->reason_phrase, hdr_ptr, len );
if( http_hdr->reason_phrase[len-1]=='\r' ) {
len--;
}
http_hdr->reason_phrase[len]='\0';
// Set the position of the header separator: \r\n\r\n
hdr_sep_len = 4;
ptr = strstr( http_hdr->buffer, "\r\n\r\n" );
if( ptr==NULL ) {
ptr = strstr( http_hdr->buffer, "\n\n" );
if( ptr==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,"Header may be incomplete. No CRLF CRLF found.\n");
return -1;
}
hdr_sep_len = 2;
}
pos_hdr_sep = ptr-http_hdr->buffer;
// Point to the first line after the method line.
hdr_ptr = strstr( http_hdr->buffer, "\n" )+1;
do {
ptr = hdr_ptr;
while( *ptr!='\r' && *ptr!='\n' ) ptr++;
len = ptr-hdr_ptr;
if( len==0 ) break;
field = realloc(field, len+1);
if( field==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
return -1;
}
strncpy( field, hdr_ptr, len );
field[len]='\0';
http_set_field( http_hdr, field );
hdr_ptr = ptr+((*ptr=='\r')?2:1);
} while( hdr_ptr<(http_hdr->buffer+pos_hdr_sep) );
if( field!=NULL ) free( field );
if( pos_hdr_sep+hdr_sep_len<http_hdr->buffer_size ) {
// Response has data!
http_hdr->body = http_hdr->buffer+pos_hdr_sep+hdr_sep_len;
http_hdr->body_size = http_hdr->buffer_size-(pos_hdr_sep+hdr_sep_len);
}
http_hdr->is_parsed = 1;
return 0;
}
char *
http_build_request( HTTP_header_t *http_hdr ) {
char *ptr, *uri=NULL;
int len;
HTTP_field_t *field;
if( http_hdr==NULL ) return NULL;
if( http_hdr->method==NULL ) http_set_method( http_hdr, "GET");
if( http_hdr->uri==NULL ) http_set_uri( http_hdr, "/");
else {
uri = malloc(strlen(http_hdr->uri) + 1);
if( uri==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
return NULL;
}
strcpy(uri,http_hdr->uri);
}
//**** Compute the request length
// Add the Method line
len = strlen(http_hdr->method)+strlen(uri)+12;
// Add the fields
field = http_hdr->first_field;
while( field!=NULL ) {
len += strlen(field->field_name)+2;
field = field->next;
}
// Add the CRLF
len += 2;
// Add the body
if( http_hdr->body!=NULL ) {
len += http_hdr->body_size;
}
// Free the buffer if it was previously used
if( http_hdr->buffer!=NULL ) {
free( http_hdr->buffer );
http_hdr->buffer = NULL;
}
http_hdr->buffer = malloc(len+1);
if( http_hdr->buffer==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
return NULL;
}
http_hdr->buffer_size = len;
//*** Building the request
ptr = http_hdr->buffer;
// Add the method line
ptr += sprintf( ptr, "%s %s HTTP/1.%d\r\n", http_hdr->method, uri, http_hdr->http_minor_version );
field = http_hdr->first_field;
// Add the field
while( field!=NULL ) {
ptr += sprintf( ptr, "%s\r\n", field->field_name );
field = field->next;
}
ptr += sprintf( ptr, "\r\n" );
// Add the body
if( http_hdr->body!=NULL ) {
memcpy( ptr, http_hdr->body, http_hdr->body_size );
}
if( uri ) free( uri );
return http_hdr->buffer;
}
char *
http_get_field( HTTP_header_t *http_hdr, const char *field_name ) {
if( http_hdr==NULL || field_name==NULL ) return NULL;
http_hdr->field_search_pos = http_hdr->first_field;
http_hdr->field_search = realloc( http_hdr->field_search, strlen(field_name)+1 );
if( http_hdr->field_search==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
return NULL;
}
strcpy( http_hdr->field_search, field_name );
return http_get_next_field( http_hdr );
}
char *
http_get_next_field( HTTP_header_t *http_hdr ) {
char *ptr;
HTTP_field_t *field;
if( http_hdr==NULL ) return NULL;
field = http_hdr->field_search_pos;
while( field!=NULL ) {
ptr = strstr( field->field_name, ":" );
if( ptr==NULL ) return NULL;
if( !strncasecmp( field->field_name, http_hdr->field_search, ptr-(field->field_name) ) ) {
ptr++; // Skip the column
while( ptr[0]==' ' ) ptr++; // Skip the spaces if there is some
http_hdr->field_search_pos = field->next;
return ptr; // return the value without the field name
}
field = field->next;
}
return NULL;
}
void
http_set_field( HTTP_header_t *http_hdr, const char *field_name ) {
HTTP_field_t *new_field;
if( http_hdr==NULL || field_name==NULL ) return;
new_field = malloc(sizeof(HTTP_field_t));
if( new_field==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
return;
}
new_field->next = NULL;
new_field->field_name = malloc(strlen(field_name)+1);
if( new_field->field_name==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
free(new_field);
return;
}
strcpy( new_field->field_name, field_name );
if( http_hdr->last_field==NULL ) {
http_hdr->first_field = new_field;
} else {
http_hdr->last_field->next = new_field;
}
http_hdr->last_field = new_field;
http_hdr->field_nb++;
}
void
http_set_method( HTTP_header_t *http_hdr, const char *method ) {
if( http_hdr==NULL || method==NULL ) return;
http_hdr->method = malloc(strlen(method)+1);
if( http_hdr->method==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
return;
}
strcpy( http_hdr->method, method );
}
void
http_set_uri( HTTP_header_t *http_hdr, const char *uri ) {
if( http_hdr==NULL || uri==NULL ) return;
http_hdr->uri = malloc(strlen(uri)+1);
if( http_hdr->uri==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
return;
}
strcpy( http_hdr->uri, uri );
}
int
http_add_basic_authentication( HTTP_header_t *http_hdr, const char *username, const char *password ) {
char *auth = NULL, *usr_pass = NULL, *b64_usr_pass = NULL;
int encoded_len, pass_len=0, out_len;
int res = -1;
if( http_hdr==NULL || username==NULL ) return -1;
if( password!=NULL ) {
pass_len = strlen(password);
}
usr_pass = malloc(strlen(username)+pass_len+2);
if( usr_pass==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
goto out;
}
sprintf( usr_pass, "%s:%s", username, (password==NULL)?"":password );
// Base 64 encode with at least 33% more data than the original size
encoded_len = strlen(usr_pass)*2;
b64_usr_pass = malloc(encoded_len);
if( b64_usr_pass==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
goto out;
}
out_len = base64_encode( usr_pass, strlen(usr_pass), b64_usr_pass, encoded_len);
if( out_len<0 ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,"Base64 out overflow\n");
goto out;
}
b64_usr_pass[out_len]='\0';
auth = malloc(encoded_len+22);
if( auth==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
goto out;
}
sprintf( auth, "Authorization: Basic %s", b64_usr_pass);
http_set_field( http_hdr, auth );
res = 0;
out:
free( usr_pass );
free( b64_usr_pass );
free( auth );
return res;
}
void
http_debug_hdr( HTTP_header_t *http_hdr ) {
HTTP_field_t *field;
int i = 0;
if( http_hdr==NULL ) return;
mp_msg(MSGT_NETWORK,MSGL_V,"--- HTTP DEBUG HEADER --- START ---\n");
mp_msg(MSGT_NETWORK,MSGL_V,"protocol: [%s]\n", http_hdr->protocol );
mp_msg(MSGT_NETWORK,MSGL_V,"http minor version: [%d]\n", http_hdr->http_minor_version );
mp_msg(MSGT_NETWORK,MSGL_V,"uri: [%s]\n", http_hdr->uri );
mp_msg(MSGT_NETWORK,MSGL_V,"method: [%s]\n", http_hdr->method );
mp_msg(MSGT_NETWORK,MSGL_V,"status code: [%d]\n", http_hdr->status_code );
mp_msg(MSGT_NETWORK,MSGL_V,"reason phrase: [%s]\n", http_hdr->reason_phrase );
mp_msg(MSGT_NETWORK,MSGL_V,"body size: [%d]\n", http_hdr->body_size );
mp_msg(MSGT_NETWORK,MSGL_V,"Fields:\n");
field = http_hdr->first_field;
while( field!=NULL ) {
mp_msg(MSGT_NETWORK,MSGL_V," %d - %s\n", i++, field->field_name );
field = field->next;
}
mp_msg(MSGT_NETWORK,MSGL_V,"--- HTTP DEBUG HEADER --- END ---\n");
}
int
base64_encode(const void *enc, int encLen, char *out, int outMax) {
static const char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
unsigned char *encBuf;
int outLen;
unsigned int bits;
unsigned int shift;
encBuf = (unsigned char*)enc;
outLen = 0;
bits = 0;
shift = 0;
outMax &= ~3;
while(1) {
if( encLen>0 ) {
// Shift in byte
bits <<= 8;
bits |= *encBuf;
shift += 8;
// Next byte
encBuf++;
encLen--;
} else if( shift>0 ) {
// Pad last bits to 6 bits - will end next loop
bits <<= 6 - shift;
shift = 6;
} else {
// As per RFC 2045, section 6.8,
// pad output as necessary: 0 to 2 '=' chars.
while( outLen & 3 ){
*out++ = '=';
outLen++;
}
return outLen;
}
// Encode 6 bit segments
while( shift>=6 ) {
if (outLen >= outMax)
return -1;
shift -= 6;
*out = b64[ (bits >> shift) & 0x3F ];
out++;
outLen++;
}
}
}
static void print_icy_metadata(HTTP_header_t *http_hdr) {
const char *field_data;
// note: I skip icy-notice1 and 2, as they contain html <BR>
// and are IMHO useless info ::atmos
if( (field_data = http_get_field(http_hdr, "icy-name")) != NULL )
mp_msg(MSGT_NETWORK,MSGL_INFO,"Name : %s\n", field_data);
if( (field_data = http_get_field(http_hdr, "icy-genre")) != NULL )
mp_msg(MSGT_NETWORK,MSGL_INFO,"Genre : %s\n", field_data);
if( (field_data = http_get_field(http_hdr, "icy-url")) != NULL )
mp_msg(MSGT_NETWORK,MSGL_INFO,"Website: %s\n", field_data);
// XXX: does this really mean public server? ::atmos
if( (field_data = http_get_field(http_hdr, "icy-pub")) != NULL )
mp_msg(MSGT_NETWORK,MSGL_INFO,"Public : %s\n", atoi(field_data)?"yes":"no");
if( (field_data = http_get_field(http_hdr, "icy-br")) != NULL )
mp_msg(MSGT_NETWORK,MSGL_INFO,"Bitrate: %skbit/s\n", field_data);
}
//! If this function succeeds you must closesocket stream->fd
static int http_streaming_start(stream_t *stream, int* file_format) {
HTTP_header_t *http_hdr = NULL;
unsigned int i;
int fd = stream->fd;
int res = STREAM_UNSUPPORTED;
int redirect = 0;
int auth_retry=0;
int seekable=0;
char *content_type;
const char *content_length;
char *next_url;
URL_t *url = stream->streaming_ctrl->url;
do
{
redirect = 0;
if (fd > 0) closesocket(fd);
fd = http_send_request( url, 0 );
if( fd<0 ) {
goto err_out;
}
http_free(http_hdr);
http_hdr = http_read_response( fd );
if( http_hdr==NULL ) {
goto err_out;
}
if( mp_msg_test(MSGT_NETWORK,MSGL_V) ) {
http_debug_hdr( http_hdr );
}
// Check if we can make partial content requests and thus seek in http-streams
if( http_hdr!=NULL && http_hdr->status_code==200 ) {
const char *accept_ranges = http_get_field(http_hdr,"Accept-Ranges");
const char *server = http_get_field(http_hdr, "Server");
if (accept_ranges)
seekable = strncmp(accept_ranges,"bytes",5)==0;
else if (server && strcmp(server, "gvs 1.0") == 0)
seekable = 1; // HACK for youtube incorrectly claiming not to support seeking
}
print_icy_metadata(http_hdr);
// Check if the response is an ICY status_code reason_phrase
if( !strcasecmp(http_hdr->protocol, "ICY") ||
http_get_field(http_hdr, "Icy-MetaInt") ) {
switch( http_hdr->status_code ) {
case 200: { // OK
char *field_data;
// If content-type == video/nsv we most likely have a winamp video stream
// otherwise it should be mp3. if there are more types consider adding mime type
// handling like later
if ( (field_data = http_get_field(http_hdr, "content-type")) != NULL && (!strcmp(field_data, "video/nsv") || !strcmp(field_data, "misc/ultravox")))
*file_format = DEMUXER_TYPE_NSV;
else if ( (field_data = http_get_field(http_hdr, "content-type")) != NULL && (!strcmp(field_data, "audio/aacp") || !strcmp(field_data, "audio/aac")))
*file_format = DEMUXER_TYPE_AAC;
else
*file_format = DEMUXER_TYPE_AUDIO;
res = STREAM_ERROR;
goto out;
}
case 400: // Server Full
mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server is full, skipping!\n");
goto err_out;
case 401: // Service Unavailable
mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server return service unavailable, skipping!\n");
goto err_out;
case 403: // Service Forbidden
mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server return 'Service Forbidden'\n");
goto err_out;
case 404: // Resource Not Found
mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server couldn't find requested stream, skipping!\n");
goto err_out;
default:
mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: unhandled ICY-Errorcode, contact MPlayer developers!\n");
goto err_out;
}
}
// Assume standard http if not ICY
switch( http_hdr->status_code ) {
case 200: // OK
content_length = http_get_field(http_hdr, "Content-Length");
if (content_length) {
mp_msg(MSGT_NETWORK,MSGL_V,"Content-Length: [%s]\n", content_length);
stream->end_pos = atoll(content_length);
}
// Look if we can use the Content-Type
content_type = http_get_field( http_hdr, "Content-Type" );
if( content_type!=NULL ) {
mp_msg(MSGT_NETWORK,MSGL_V,"Content-Type: [%s]\n", content_type );
// Check in the mime type table for a demuxer type
i = 0;
while(mime_type_table[i].mime_type != NULL) {
if( !strcasecmp( content_type, mime_type_table[i].mime_type ) ) {
*file_format = mime_type_table[i].demuxer_type;
res = seekable;
goto out;
}
i++;
}
}
// Not found in the mime type table, don't fail,
// we should try raw HTTP
res = seekable;
goto out;
// Redirect
case 301: // Permanently
case 302: // Temporarily
case 303: // See Other
// TODO: RFC 2616, recommand to detect infinite redirection loops
next_url = http_get_field( http_hdr, "Location" );
if( next_url!=NULL ) {
int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
stream->streaming_ctrl->url = url_redirect( &url, next_url );
if (!strcasecmp(url->protocol, "mms")) {
res = STREAM_REDIRECTED;
goto err_out;
}
if (strcasecmp(url->protocol, "http")) {
mp_msg(MSGT_NETWORK,MSGL_ERR,"Unsupported http %d redirect to %s protocol\n", http_hdr->status_code, url->protocol);
goto err_out;
}
if (is_ultravox) {
free(url->protocol);
url->protocol = strdup("unsv");
}
redirect = 1;
}
break;
case 401: // Authentication required
if( http_authenticate(http_hdr, url, &auth_retry)<0 )
goto err_out;
redirect = 1;
break;
default:
mp_msg(MSGT_NETWORK,MSGL_ERR,"Server returned %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
goto err_out;
}
} while( redirect );
err_out:
if (fd > 0) closesocket( fd );
fd = -1;
http_free( http_hdr );
http_hdr = NULL;
out:
stream->streaming_ctrl->data = (void*)http_hdr;
stream->fd = fd;
return res;
}
static int fixup_open(stream_t *stream,int seekable) {
HTTP_header_t *http_hdr = stream->streaming_ctrl->data;
int is_icy = http_hdr && http_get_field(http_hdr, "Icy-MetaInt");
int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
stream->type = STREAMTYPE_STREAM;
if(!is_icy && !is_ultravox && seekable)
{
stream->flags |= MP_STREAM_SEEK;
stream->seek = http_seek;
}
stream->streaming_ctrl->bandwidth = network_bandwidth;
if ((!is_icy && !is_ultravox) || scast_streaming_start(stream))
if(nop_streaming_start( stream )) {
mp_msg(MSGT_NETWORK,MSGL_ERR,"nop_streaming_start failed\n");
if (stream->fd >= 0)
closesocket(stream->fd);
stream->fd = -1;
streaming_ctrl_free(stream->streaming_ctrl);
stream->streaming_ctrl = NULL;
return STREAM_UNSUPPORTED;
}
fixup_network_stream_cache(stream);
return STREAM_OK;
}
static int open_s1(stream_t *stream,int mode, void* opts, int* file_format) {
int seekable=0;
URL_t *url;
stream->streaming_ctrl = streaming_ctrl_new();
if( stream->streaming_ctrl==NULL ) {
return STREAM_ERROR;
}
stream->streaming_ctrl->bandwidth = network_bandwidth;
url = url_new(stream->url);
stream->streaming_ctrl->url = check4proxies(url);
url_free(url);
mp_msg(MSGT_OPEN, MSGL_V, "STREAM_HTTP(1), URL: %s\n", stream->url);
seekable = http_streaming_start(stream, file_format);
if((seekable < 0) || (*file_format == DEMUXER_TYPE_ASF)) {
if (stream->fd >= 0)
closesocket(stream->fd);
stream->fd = -1;
if (seekable == STREAM_REDIRECTED)
return seekable;
streaming_ctrl_free(stream->streaming_ctrl);
stream->streaming_ctrl = NULL;
return STREAM_UNSUPPORTED;
}
return fixup_open(stream, seekable);
}
static int open_s2(stream_t *stream,int mode, void* opts, int* file_format) {
int seekable=0;
URL_t *url;
stream->streaming_ctrl = streaming_ctrl_new();
if( stream->streaming_ctrl==NULL ) {
return STREAM_ERROR;
}
stream->streaming_ctrl->bandwidth = network_bandwidth;
url = url_new(stream->url);
stream->streaming_ctrl->url = check4proxies(url);
url_free(url);
mp_msg(MSGT_OPEN, MSGL_V, "STREAM_HTTP(2), URL: %s\n", stream->url);
seekable = http_streaming_start(stream, file_format);
if(seekable < 0) {
if (stream->fd >= 0)
closesocket(stream->fd);
stream->fd = -1;
streaming_ctrl_free(stream->streaming_ctrl);
stream->streaming_ctrl = NULL;
return STREAM_UNSUPPORTED;
}
return fixup_open(stream, seekable);
}
const stream_info_t stream_info_http1 = {
"http streaming",
"null",
"Bertrand, Albeau, Reimar Doeffinger, Arpi?",
"plain http",
open_s1,
{"http", "http_proxy", "unsv", "icyx", "noicyx", NULL},
NULL,
0 // Urls are an option string
};
const stream_info_t stream_info_http2 = {
"http streaming",
"null",
"Bertrand, Albeu, Arpi? who?",
"plain http, also used as fallback for many other protocols",
open_s2,
{"http", "http_proxy", "pnm", "mms", "mmsu", "mmst", "rtsp", NULL}, //all the others as fallback
NULL,
0 // Urls are an option string
};