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/*
* HTTP protocol for ffmpeg client
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* Copyright ( c ) 2000 , 2001 Fabrice Bellard
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*
* This file is part of FFmpeg .
*
* FFmpeg 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 of the License , or ( at your option ) any later version .
*
* FFmpeg 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
* Lesser General Public License for more details .
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg ; if not , write to the Free Software
* Foundation , Inc . , 51 Franklin Street , Fifth Floor , Boston , MA 02110 - 1301 USA
*/
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# include "config.h"
# if CONFIG_ZLIB
# include <zlib.h>
# endif /* CONFIG_ZLIB */
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# include "libavutil/avstring.h"
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# include "libavutil/opt.h"
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# include "avformat.h"
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# include "http.h"
# include "httpauth.h"
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# include "internal.h"
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# include "network.h"
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# include "os_support.h"
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# include "url.h"
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/* XXX: POST protocol is not completely implemented because ffmpeg uses
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* only a subset of it . */
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/* The IO buffer size is unrelated to the max URL size in itself, but needs
* to be large enough to fit the full request headers ( including long
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* path names ) . */
# define BUFFER_SIZE MAX_URL_SIZE
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# define MAX_REDIRECTS 8
typedef struct {
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const AVClass * class ;
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URLContext * hd ;
unsigned char buffer [ BUFFER_SIZE ] , * buf_ptr , * buf_end ;
int line_count ;
int http_code ;
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/* Used if "Transfer-Encoding: chunked" otherwise -1. */
int64_t chunksize ;
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int64_t off , end_off , filesize ;
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char * location ;
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HTTPAuthState auth_state ;
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HTTPAuthState proxy_auth_state ;
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char * headers ;
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char * mime_type ;
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char * user_agent ;
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char * content_type ;
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/* Set if the server correctly handles Connection: close and will close
* the connection after feeding us the content . */
int willclose ;
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int seekable ; /**< Control seekability, 0 = disable, 1 = enable, -1 = probe. */
http: Change the chunksize AVOption into chunked_post
The chunksize internal variable has two different uses - for
reading, it's the amount of data left of the current chunk
(or -1 if the server doesn't send data in chunked mode), where
it's only an internal state variable. For writing, it's used
to decide whether to enable chunked encoding (by default), by
using the value 0, or disable chunked encoding (value -1).
This, while consistent, doesn't make much sense to expose
as an AVOption. This splits the usage of the internal variable
into two variables, chunksize which is used for reading (as
before), and chunked_post which is the user-settable option,
with the values 0 and 1, where 1 is default.
Signed-off-by: Martin Storsjö <martin@martin.st>
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int chunked_post ;
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/* A flag which indicates if the end of chunked encoding has been sent. */
int end_chunked_post ;
/* A flag which indicates we have finished to read POST reply. */
int end_header ;
/* A flag which indicates if we use persistent connections. */
int multiple_requests ;
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uint8_t * post_data ;
int post_datalen ;
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int is_akamai ;
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int is_mediagateway ;
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char * cookies ; ///< holds newline (\n) delimited Set-Cookie header field values (without the "Set-Cookie: " field name)
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int icy ;
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/* how much data was read since the last ICY metadata packet */
int icy_data_read ;
/* after how many bytes of read data a new metadata packet will be found */
int icy_metaint ;
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char * icy_metadata_headers ;
char * icy_metadata_packet ;
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AVDictionary * metadata ;
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# if CONFIG_ZLIB
int compressed ;
z_stream inflate_stream ;
uint8_t * inflate_buffer ;
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# endif /* CONFIG_ZLIB */
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AVDictionary * chained_options ;
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int send_expect_100 ;
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char * method ;
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} HTTPContext ;
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# define OFFSET(x) offsetof(HTTPContext, x)
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# define D AV_OPT_FLAG_DECODING_PARAM
# define E AV_OPT_FLAG_ENCODING_PARAM
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# define DEFAULT_USER_AGENT "Lavf / " AV_STRINGIFY(LIBAVFORMAT_VERSION)
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static const AVOption options [ ] = {
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{ " seekable " , " control seekability of connection " , OFFSET ( seekable ) , AV_OPT_TYPE_INT , { . i64 = - 1 } , - 1 , 1 , D } ,
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{ " chunked_post " , " use chunked transfer-encoding for posts " , OFFSET ( chunked_post ) , AV_OPT_TYPE_INT , { . i64 = 1 } , 0 , 1 , E } ,
{ " headers " , " set custom HTTP headers, can override built in default headers " , OFFSET ( headers ) , AV_OPT_TYPE_STRING , { 0 } , 0 , 0 , D | E } ,
{ " content_type " , " set a specific content type for the POST messages " , OFFSET ( content_type ) , AV_OPT_TYPE_STRING , { 0 } , 0 , 0 , D | E } ,
{ " user_agent " , " override User-Agent header " , OFFSET ( user_agent ) , AV_OPT_TYPE_STRING , { . str = DEFAULT_USER_AGENT } , 0 , 0 , D } ,
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{ " user-agent " , " override User-Agent header " , OFFSET ( user_agent ) , AV_OPT_TYPE_STRING , { . str = DEFAULT_USER_AGENT } , 0 , 0 , D } ,
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{ " multiple_requests " , " use persistent connections " , OFFSET ( multiple_requests ) , AV_OPT_TYPE_INT , { . i64 = 0 } , 0 , 1 , D | E } ,
{ " post_data " , " set custom HTTP post data " , OFFSET ( post_data ) , AV_OPT_TYPE_BINARY , . flags = D | E } ,
{ " mime_type " , " export the MIME type " , OFFSET ( mime_type ) , AV_OPT_TYPE_STRING , { 0 } , 0 , 0 , AV_OPT_FLAG_EXPORT | AV_OPT_FLAG_READONLY } ,
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{ " cookies " , " set cookies to be sent in applicable future requests, use newline delimited Set-Cookie HTTP field value syntax " , OFFSET ( cookies ) , AV_OPT_TYPE_STRING , { 0 } , 0 , 0 , D } ,
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{ " icy " , " request ICY metadata " , OFFSET ( icy ) , AV_OPT_TYPE_INT , { . i64 = 1 } , 0 , 1 , D } ,
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{ " icy_metadata_headers " , " return ICY metadata headers " , OFFSET ( icy_metadata_headers ) , AV_OPT_TYPE_STRING , { 0 } , 0 , 0 , AV_OPT_FLAG_EXPORT } ,
{ " icy_metadata_packet " , " return current ICY metadata packet " , OFFSET ( icy_metadata_packet ) , AV_OPT_TYPE_STRING , { 0 } , 0 , 0 , AV_OPT_FLAG_EXPORT } ,
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{ " metadata " , " metadata read from the bitstream " , OFFSET ( metadata ) , AV_OPT_TYPE_DICT , { 0 } , 0 , 0 , AV_OPT_FLAG_EXPORT } ,
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{ " auth_type " , " HTTP authentication type " , OFFSET ( auth_state . auth_type ) , AV_OPT_TYPE_INT , { . i64 = HTTP_AUTH_NONE } , HTTP_AUTH_NONE , HTTP_AUTH_BASIC , D | E , " auth_type " } ,
{ " none " , " No auth method set, autodetect " , 0 , AV_OPT_TYPE_CONST , { . i64 = HTTP_AUTH_NONE } , 0 , 0 , D | E , " auth_type " } ,
{ " basic " , " HTTP basic authentication " , 0 , AV_OPT_TYPE_CONST , { . i64 = HTTP_AUTH_BASIC } , 0 , 0 , D | E , " auth_type " } ,
{ " send_expect_100 " , " Force sending an Expect: 100-continue header for POST " , OFFSET ( send_expect_100 ) , AV_OPT_TYPE_INT , { . i64 = 0 } , 0 , 1 , E } ,
{ " location " , " The actual location of the data received " , OFFSET ( location ) , AV_OPT_TYPE_STRING , { 0 } , 0 , 0 , D | E } ,
{ " offset " , " initial byte offset " , OFFSET ( off ) , AV_OPT_TYPE_INT64 , { . i64 = 0 } , 0 , INT64_MAX , D } ,
{ " end_offset " , " try to limit the request to bytes preceding this offset " , OFFSET ( end_off ) , AV_OPT_TYPE_INT64 , { . i64 = 0 } , 0 , INT64_MAX , D } ,
{ " method " , " Override the HTTP method " , OFFSET ( method ) , AV_OPT_TYPE_STRING , { . str = NULL } , 0 , 0 , E } ,
{ NULL }
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} ;
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static int http_connect ( URLContext * h , const char * path , const char * local_path ,
const char * hoststr , const char * auth ,
const char * proxyauth , int * new_location ) ;
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void ff_http_init_auth_state ( URLContext * dest , const URLContext * src )
{
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memcpy ( & ( ( HTTPContext * ) dest - > priv_data ) - > auth_state ,
& ( ( HTTPContext * ) src - > priv_data ) - > auth_state ,
sizeof ( HTTPAuthState ) ) ;
memcpy ( & ( ( HTTPContext * ) dest - > priv_data ) - > proxy_auth_state ,
& ( ( HTTPContext * ) src - > priv_data ) - > proxy_auth_state ,
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sizeof ( HTTPAuthState ) ) ;
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}
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static int http_open_cnx_internal ( URLContext * h , AVDictionary * * options )
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{
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const char * path , * proxy_path , * lower_proto = " tcp " , * local_path ;
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char hostname [ 1024 ] , hoststr [ 1024 ] , proto [ 10 ] ;
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char auth [ 1024 ] , proxyauth [ 1024 ] = " " ;
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char path1 [ MAX_URL_SIZE ] ;
char buf [ 1024 ] , urlbuf [ MAX_URL_SIZE ] ;
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int port , use_proxy , err , location_changed = 0 ;
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HTTPContext * s = h - > priv_data ;
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av_url_split ( proto , sizeof ( proto ) , auth , sizeof ( auth ) ,
hostname , sizeof ( hostname ) , & port ,
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path1 , sizeof ( path1 ) , s - > location ) ;
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ff_url_join ( hoststr , sizeof ( hoststr ) , NULL , NULL , hostname , port , NULL ) ;
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proxy_path = getenv ( " http_proxy " ) ;
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use_proxy = ! ff_http_match_no_proxy ( getenv ( " no_proxy " ) , hostname ) & &
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proxy_path & & av_strstart ( proxy_path , " http:// " , NULL ) ;
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if ( ! strcmp ( proto , " https " ) ) {
lower_proto = " tls " ;
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use_proxy = 0 ;
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if ( port < 0 )
port = 443 ;
}
if ( port < 0 )
port = 80 ;
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if ( path1 [ 0 ] = = ' \0 ' )
path = " / " ;
else
path = path1 ;
local_path = path ;
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if ( use_proxy ) {
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/* Reassemble the request URL without auth string - we don't
* want to leak the auth to the proxy . */
ff_url_join ( urlbuf , sizeof ( urlbuf ) , proto , NULL , hostname , port , " %s " ,
path1 ) ;
path = urlbuf ;
av_url_split ( NULL , 0 , proxyauth , sizeof ( proxyauth ) ,
hostname , sizeof ( hostname ) , & port , NULL , 0 , proxy_path ) ;
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}
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ff_url_join ( buf , sizeof ( buf ) , lower_proto , NULL , hostname , port , NULL ) ;
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if ( ! s - > hd ) {
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err = ffurl_open ( & s - > hd , buf , AVIO_FLAG_READ_WRITE ,
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& h - > interrupt_callback , options ) ;
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if ( err < 0 )
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return err ;
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}
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err = http_connect ( h , path , local_path , hoststr ,
auth , proxyauth , & location_changed ) ;
if ( err < 0 )
return err ;
return location_changed ;
}
/* return non zero if error */
static int http_open_cnx ( URLContext * h , AVDictionary * * options )
{
HTTPAuthType cur_auth_type , cur_proxy_auth_type ;
HTTPContext * s = h - > priv_data ;
int location_changed , attempts = 0 , redirects = 0 ;
redo :
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av_dict_copy ( options , s - > chained_options , 0 ) ;
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cur_auth_type = s - > auth_state . auth_type ;
cur_proxy_auth_type = s - > auth_state . auth_type ;
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location_changed = http_open_cnx_internal ( h , options ) ;
if ( location_changed < 0 )
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goto fail ;
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attempts + + ;
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if ( s - > http_code = = 401 ) {
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if ( ( cur_auth_type = = HTTP_AUTH_NONE | | s - > auth_state . stale ) & &
s - > auth_state . auth_type ! = HTTP_AUTH_NONE & & attempts < 4 ) {
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ffurl_closep ( & s - > hd ) ;
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goto redo ;
} else
goto fail ;
}
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if ( s - > http_code = = 407 ) {
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if ( ( cur_proxy_auth_type = = HTTP_AUTH_NONE | | s - > proxy_auth_state . stale ) & &
s - > proxy_auth_state . auth_type ! = HTTP_AUTH_NONE & & attempts < 4 ) {
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ffurl_closep ( & s - > hd ) ;
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goto redo ;
} else
goto fail ;
}
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if ( ( s - > http_code = = 301 | | s - > http_code = = 302 | |
s - > http_code = = 303 | | s - > http_code = = 307 ) & &
location_changed = = 1 ) {
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/* url moved, get next */
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ffurl_closep ( & s - > hd ) ;
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if ( redirects + + > = MAX_REDIRECTS )
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return AVERROR ( EIO ) ;
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/* Restart the authentication process with the new target, which
* might use a different auth mechanism . */
memset ( & s - > auth_state , 0 , sizeof ( s - > auth_state ) ) ;
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attempts = 0 ;
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location_changed = 0 ;
goto redo ;
}
return 0 ;
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fail :
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if ( s - > hd )
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ffurl_closep ( & s - > hd ) ;
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if ( location_changed < 0 )
return location_changed ;
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return ff_http_averror ( s - > http_code , AVERROR ( EIO ) ) ;
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}
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int ff_http_do_new_request ( URLContext * h , const char * uri )
{
HTTPContext * s = h - > priv_data ;
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AVDictionary * options = NULL ;
int ret ;
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s - > off = 0 ;
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s - > icy_data_read = 0 ;
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av_free ( s - > location ) ;
s - > location = av_strdup ( uri ) ;
if ( ! s - > location )
return AVERROR ( ENOMEM ) ;
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ret = http_open_cnx ( h , & options ) ;
av_dict_free ( & options ) ;
return ret ;
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}
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int ff_http_averror ( int status_code , int default_averror )
{
switch ( status_code ) {
case 400 : return AVERROR_HTTP_BAD_REQUEST ;
case 401 : return AVERROR_HTTP_UNAUTHORIZED ;
case 403 : return AVERROR_HTTP_FORBIDDEN ;
case 404 : return AVERROR_HTTP_NOT_FOUND ;
default : break ;
}
if ( status_code > = 400 & & status_code < = 499 )
return AVERROR_HTTP_OTHER_4XX ;
else if ( status_code > = 500 )
return AVERROR_HTTP_SERVER_ERROR ;
else
return default_averror ;
}
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static int http_open ( URLContext * h , const char * uri , int flags ,
AVDictionary * * options )
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{
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HTTPContext * s = h - > priv_data ;
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int ret ;
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if ( s - > seekable = = 1 )
h - > is_streamed = 0 ;
else
h - > is_streamed = 1 ;
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s - > filesize = - 1 ;
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s - > location = av_strdup ( uri ) ;
if ( ! s - > location )
return AVERROR ( ENOMEM ) ;
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if ( options )
av_dict_copy ( & s - > chained_options , * options , 0 ) ;
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if ( s - > headers ) {
int len = strlen ( s - > headers ) ;
if ( len < 2 | | strcmp ( " \r \n " , s - > headers + len - 2 ) )
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av_log ( h , AV_LOG_WARNING ,
" No trailing CRLF found in HTTP header. \n " ) ;
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}
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ret = http_open_cnx ( h , options ) ;
if ( ret < 0 )
av_dict_free ( & s - > chained_options ) ;
return ret ;
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}
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static int http_getc ( HTTPContext * s )
{
int len ;
if ( s - > buf_ptr > = s - > buf_end ) {
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len = ffurl_read ( s - > hd , s - > buffer , BUFFER_SIZE ) ;
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if ( len < 0 ) {
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return len ;
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} else if ( len = = 0 ) {
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return AVERROR_EOF ;
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} else {
s - > buf_ptr = s - > buffer ;
s - > buf_end = s - > buffer + len ;
}
}
return * s - > buf_ptr + + ;
}
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static int http_get_line ( HTTPContext * s , char * line , int line_size )
{
int ch ;
char * q ;
q = line ;
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for ( ; ; ) {
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ch = http_getc ( s ) ;
if ( ch < 0 )
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return ch ;
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if ( ch = = ' \n ' ) {
/* process line */
if ( q > line & & q [ - 1 ] = = ' \r ' )
q - - ;
* q = ' \0 ' ;
return 0 ;
} else {
if ( ( q - line ) < line_size - 1 )
* q + + = ch ;
}
}
}
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static int check_http_code ( URLContext * h , int http_code , const char * end )
{
HTTPContext * s = h - > priv_data ;
/* error codes are 4xx and 5xx, but regard 401 as a success, so we
* don ' t abort until all headers have been parsed . */
if ( http_code > = 400 & & http_code < 600 & &
( http_code ! = 401 | | s - > auth_state . auth_type ! = HTTP_AUTH_NONE ) & &
( http_code ! = 407 | | s - > proxy_auth_state . auth_type ! = HTTP_AUTH_NONE ) ) {
end + = strspn ( end , SPACE_CHARS ) ;
av_log ( h , AV_LOG_WARNING , " HTTP error %d %s \n " , http_code , end ) ;
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return ff_http_averror ( http_code , AVERROR ( EIO ) ) ;
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}
return 0 ;
}
static int parse_location ( HTTPContext * s , const char * p )
{
char redirected_location [ MAX_URL_SIZE ] , * new_loc ;
ff_make_absolute_url ( redirected_location , sizeof ( redirected_location ) ,
s - > location , p ) ;
new_loc = av_strdup ( redirected_location ) ;
if ( ! new_loc )
return AVERROR ( ENOMEM ) ;
av_free ( s - > location ) ;
s - > location = new_loc ;
return 0 ;
}
/* "bytes $from-$to/$document_size" */
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static void parse_content_range ( URLContext * h , const char * p )
2014-03-10 22:16:50 +03:00
{
HTTPContext * s = h - > priv_data ;
const char * slash ;
if ( ! strncmp ( p , " bytes " , 6 ) ) {
2014-07-22 21:42:03 +03:00
p + = 6 ;
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s - > off = strtoll ( p , NULL , 10 ) ;
if ( ( slash = strchr ( p , ' / ' ) ) & & strlen ( slash ) > 0 )
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s - > filesize = strtoll ( slash + 1 , NULL , 10 ) ;
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}
2014-03-12 04:52:17 +03:00
if ( s - > seekable = = - 1 & & ( ! s - > is_akamai | | s - > filesize ! = 2147483647 ) )
h - > is_streamed = 0 ; /* we _can_ in fact seek */
2014-03-10 22:16:50 +03:00
}
2014-03-12 10:40:05 +03:00
static int parse_content_encoding ( URLContext * h , const char * p )
2014-03-10 22:16:50 +03:00
{
if ( ! av_strncasecmp ( p , " gzip " , 4 ) | |
! av_strncasecmp ( p , " deflate " , 7 ) ) {
# if CONFIG_ZLIB
2014-08-13 22:33:27 +03:00
HTTPContext * s = h - > priv_data ;
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s - > compressed = 1 ;
inflateEnd ( & s - > inflate_stream ) ;
if ( inflateInit2 ( & s - > inflate_stream , 32 + 15 ) ! = Z_OK ) {
av_log ( h , AV_LOG_WARNING , " Error during zlib initialisation: %s \n " ,
s - > inflate_stream . msg ) ;
return AVERROR ( ENOSYS ) ;
}
if ( zlibCompileFlags ( ) & ( 1 < < 17 ) ) {
av_log ( h , AV_LOG_WARNING ,
" Your zlib was compiled without gzip support. \n " ) ;
return AVERROR ( ENOSYS ) ;
}
# else
av_log ( h , AV_LOG_WARNING ,
" Compressed (%s) content, need zlib with gzip support \n " , p ) ;
return AVERROR ( ENOSYS ) ;
2014-07-22 21:42:03 +03:00
# endif /* CONFIG_ZLIB */
2014-03-10 22:16:50 +03:00
} else if ( ! av_strncasecmp ( p , " identity " , 8 ) ) {
// The normal, no-encoding case (although servers shouldn't include
// the header at all if this is the case).
} else {
av_log ( h , AV_LOG_WARNING , " Unknown content coding: %s \n " , p ) ;
}
return 0 ;
}
2014-03-10 23:11:35 +03:00
// Concat all Icy- header lines
static int parse_icy ( HTTPContext * s , const char * tag , const char * p )
{
int len = 4 + strlen ( p ) + strlen ( tag ) ;
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int is_first = ! s - > icy_metadata_headers ;
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int ret ;
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av_dict_set ( & s - > metadata , tag , p , 0 ) ;
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if ( s - > icy_metadata_headers )
len + = strlen ( s - > icy_metadata_headers ) ;
if ( ( ret = av_reallocp ( & s - > icy_metadata_headers , len ) ) < 0 )
return ret ;
2014-03-12 18:28:22 +03:00
if ( is_first )
* s - > icy_metadata_headers = ' \0 ' ;
2014-03-10 23:11:35 +03:00
av_strlcatf ( s - > icy_metadata_headers , len , " %s: %s \n " , tag , p ) ;
return 0 ;
}
2007-02-28 05:40:23 +02:00
static int process_line ( URLContext * h , char * line , int line_count ,
int * new_location )
{
HTTPContext * s = h - > priv_data ;
2010-07-16 17:15:37 +03:00
char * tag , * p , * end ;
2014-03-10 22:16:50 +03:00
int ret ;
2007-02-28 05:40:23 +02:00
/* end of header */
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if ( line [ 0 ] = = ' \0 ' ) {
s - > end_header = 1 ;
2007-02-28 05:40:23 +02:00
return 0 ;
2012-05-21 12:27:10 +03:00
}
2007-02-28 05:40:23 +02:00
p = line ;
if ( line_count = = 0 ) {
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while ( ! av_isspace ( * p ) & & * p ! = ' \0 ' )
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p + + ;
2013-03-03 13:17:50 +03:00
while ( av_isspace ( * p ) )
2007-02-28 05:40:23 +02:00
p + + ;
2010-07-16 17:15:37 +03:00
s - > http_code = strtol ( p , & end , 10 ) ;
2009-06-06 20:32:59 +03:00
2013-11-04 17:59:19 +03:00
av_log ( h , AV_LOG_DEBUG , " http_code=%d \n " , s - > http_code ) ;
2009-06-06 20:32:59 +03:00
2014-03-10 22:16:50 +03:00
if ( ( ret = check_http_code ( h , s - > http_code , end ) ) < 0 )
return ret ;
2007-02-28 05:40:23 +02:00
} else {
while ( * p ! = ' \0 ' & & * p ! = ' : ' )
p + + ;
if ( * p ! = ' : ' )
return 1 ;
2014-07-22 21:42:03 +03:00
* p = ' \0 ' ;
2007-02-28 05:40:23 +02:00
tag = line ;
p + + ;
2013-03-03 13:17:50 +03:00
while ( av_isspace ( * p ) )
2007-02-28 05:40:23 +02:00
p + + ;
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if ( ! av_strcasecmp ( tag , " Location " ) ) {
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if ( ( ret = parse_location ( s , p ) ) < 0 )
return ret ;
2007-02-28 05:40:23 +02:00
* new_location = 1 ;
2014-03-10 20:02:09 +03:00
} else if ( ! av_strcasecmp ( tag , " Content-Length " ) & & s - > filesize = = - 1 ) {
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s - > filesize = strtoll ( p , NULL , 10 ) ;
2014-03-10 20:02:09 +03:00
} else if ( ! av_strcasecmp ( tag , " Content-Range " ) ) {
2014-03-10 22:16:50 +03:00
parse_content_range ( h , p ) ;
2014-03-10 20:02:09 +03:00
} else if ( ! av_strcasecmp ( tag , " Accept-Ranges " ) & &
2014-03-12 04:45:34 +03:00
! strncmp ( p , " bytes " , 5 ) & &
s - > seekable = = - 1 ) {
2011-09-03 23:29:07 +03:00
h - > is_streamed = 0 ;
2014-03-10 20:02:09 +03:00
} else if ( ! av_strcasecmp ( tag , " Transfer-Encoding " ) & &
! av_strncasecmp ( p , " chunked " , 7 ) ) {
2014-07-22 21:42:03 +03:00
s - > filesize = - 1 ;
2009-06-23 18:38:53 +03:00
s - > chunksize = 0 ;
2014-03-10 20:02:09 +03:00
} else if ( ! av_strcasecmp ( tag , " WWW-Authenticate " ) ) {
2010-03-25 00:32:05 +02:00
ff_http_auth_handle_header ( & s - > auth_state , tag , p ) ;
2014-03-10 20:02:09 +03:00
} else if ( ! av_strcasecmp ( tag , " Authentication-Info " ) ) {
2010-03-25 00:32:05 +02:00
ff_http_auth_handle_header ( & s - > auth_state , tag , p ) ;
2014-03-10 20:02:09 +03:00
} else if ( ! av_strcasecmp ( tag , " Proxy-Authenticate " ) ) {
2011-11-11 12:21:42 +03:00
ff_http_auth_handle_header ( & s - > proxy_auth_state , tag , p ) ;
2014-03-10 20:02:09 +03:00
} else if ( ! av_strcasecmp ( tag , " Connection " ) ) {
2010-08-09 11:14:48 +03:00
if ( ! strcmp ( p , " close " ) )
s - > willclose = 1 ;
2014-07-24 03:08:14 +03:00
} else if ( ! av_strcasecmp ( tag , " Server " ) ) {
if ( ! av_strcasecmp ( p , " AkamaiGHost " ) ) {
2013-11-03 20:17:45 +03:00
s - > is_akamai = 1 ;
2014-07-24 03:08:14 +03:00
} else if ( ! av_strncasecmp ( p , " MediaGateway " , 12 ) ) {
2013-11-03 20:17:45 +03:00
s - > is_mediagateway = 1 ;
}
2014-07-22 21:42:03 +03:00
} else if ( ! av_strcasecmp ( tag , " Content-Type " ) ) {
2014-03-06 20:39:58 +03:00
av_free ( s - > mime_type ) ;
s - > mime_type = av_strdup ( p ) ;
2014-07-24 03:08:14 +03:00
} else if ( ! av_strcasecmp ( tag , " Set-Cookie " ) ) {
2013-01-14 05:32:57 +03:00
if ( ! s - > cookies ) {
if ( ! ( s - > cookies = av_strdup ( p ) ) )
return AVERROR ( ENOMEM ) ;
} else {
char * tmp = s - > cookies ;
size_t str_size = strlen ( tmp ) + strlen ( p ) + 2 ;
if ( ! ( s - > cookies = av_malloc ( str_size ) ) ) {
s - > cookies = tmp ;
return AVERROR ( ENOMEM ) ;
}
snprintf ( s - > cookies , str_size , " %s \n %s " , tmp , p ) ;
av_free ( tmp ) ;
}
2014-07-22 21:42:03 +03:00
} else if ( ! av_strcasecmp ( tag , " Icy-MetaInt " ) ) {
2013-06-26 01:53:26 +03:00
s - > icy_metaint = strtoll ( p , NULL , 10 ) ;
} else if ( ! av_strncasecmp ( tag , " Icy- " , 4 ) ) {
2014-03-10 23:11:35 +03:00
if ( ( ret = parse_icy ( s , tag , p ) ) < 0 )
return ret ;
2014-03-10 20:02:09 +03:00
} else if ( ! av_strcasecmp ( tag , " Content-Encoding " ) ) {
2014-03-10 22:16:50 +03:00
if ( ( ret = parse_content_encoding ( h , p ) ) < 0 )
return ret ;
2007-02-28 05:40:23 +02:00
}
}
return 1 ;
}
2013-01-14 05:32:57 +03:00
/**
* Create a string containing cookie values for use as a HTTP cookie header
* field value for a particular path and domain from the cookie values stored in
* the HTTP protocol context . The cookie string is stored in * cookies .
*
* @ return a negative value if an error condition occurred , 0 otherwise
*/
static int get_cookies ( HTTPContext * s , char * * cookies , const char * path ,
const char * domain )
{
// cookie strings will look like Set-Cookie header field values. Multiple
// Set-Cookie fields will result in multiple values delimited by a newline
int ret = 0 ;
char * next , * cookie , * set_cookies = av_strdup ( s - > cookies ) , * cset_cookies = set_cookies ;
if ( ! set_cookies ) return AVERROR ( EINVAL ) ;
* cookies = NULL ;
while ( ( cookie = av_strtok ( set_cookies , " \n " , & next ) ) ) {
int domain_offset = 0 ;
char * param , * next_param , * cdomain = NULL , * cpath = NULL , * cvalue = NULL ;
set_cookies = NULL ;
while ( ( param = av_strtok ( cookie , " ; " , & next_param ) ) ) {
2014-08-17 15:09:45 +03:00
if ( cookie ) {
// first key-value pair is the actual cookie value
cvalue = av_strdup ( param ) ;
cookie = NULL ;
} else if ( ! av_strncasecmp ( " path= " , param , 5 ) ) {
2013-01-21 04:25:30 +03:00
av_free ( cpath ) ;
2013-01-14 05:32:57 +03:00
cpath = av_strdup ( & param [ 5 ] ) ;
} else if ( ! av_strncasecmp ( " domain= " , param , 7 ) ) {
2014-01-23 11:34:20 +03:00
// if the cookie specifies a sub-domain, skip the leading dot thereby
// supporting URLs that point to sub-domains and the master domain
int leading_dot = ( param [ 7 ] = = ' . ' ) ;
2013-01-21 04:25:30 +03:00
av_free ( cdomain ) ;
2014-01-23 11:34:20 +03:00
cdomain = av_strdup ( & param [ 7 + leading_dot ] ) ;
2013-01-14 05:32:57 +03:00
} else {
2014-08-17 15:09:45 +03:00
// ignore unknown attributes
2013-01-14 05:32:57 +03:00
}
}
2013-06-10 11:52:40 +03:00
if ( ! cdomain )
cdomain = av_strdup ( domain ) ;
2013-01-14 05:32:57 +03:00
// ensure all of the necessary values are valid
if ( ! cdomain | | ! cpath | | ! cvalue ) {
av_log ( s , AV_LOG_WARNING ,
" Invalid cookie found, no value, path or domain specified \n " ) ;
goto done_cookie ;
}
// check if the request path matches the cookie path
if ( av_strncasecmp ( path , cpath , strlen ( cpath ) ) )
goto done_cookie ;
// the domain should be at least the size of our cookie domain
domain_offset = strlen ( domain ) - strlen ( cdomain ) ;
if ( domain_offset < 0 )
goto done_cookie ;
// match the cookie domain
if ( av_strcasecmp ( & domain [ domain_offset ] , cdomain ) )
goto done_cookie ;
// cookie parameters match, so copy the value
if ( ! * cookies ) {
if ( ! ( * cookies = av_strdup ( cvalue ) ) ) {
ret = AVERROR ( ENOMEM ) ;
goto done_cookie ;
}
} else {
char * tmp = * cookies ;
size_t str_size = strlen ( cvalue ) + strlen ( * cookies ) + 3 ;
if ( ! ( * cookies = av_malloc ( str_size ) ) ) {
ret = AVERROR ( ENOMEM ) ;
goto done_cookie ;
}
snprintf ( * cookies , str_size , " %s; %s " , tmp , cvalue ) ;
av_free ( tmp ) ;
}
done_cookie :
2014-12-20 17:53:37 +02:00
av_freep ( & cdomain ) ;
av_freep ( & cpath ) ;
av_freep ( & cvalue ) ;
2013-01-14 05:32:57 +03:00
if ( ret < 0 ) {
if ( * cookies ) av_freep ( cookies ) ;
av_free ( cset_cookies ) ;
return ret ;
}
}
av_free ( cset_cookies ) ;
return 0 ;
}
2010-06-08 13:26:16 +03:00
static inline int has_header ( const char * str , const char * header )
{
/* header + 2 to skip over CRLF prefix. (make sure you have one!) */
2011-11-07 12:43:13 +03:00
if ( ! str )
return 0 ;
2010-06-08 13:26:16 +03:00
return av_stristart ( str , header + 2 , NULL ) | | av_stristr ( str , header ) ;
}
2012-05-20 17:20:56 +03:00
static int http_read_header ( URLContext * h , int * new_location )
{
HTTPContext * s = h - > priv_data ;
2012-09-22 23:17:36 +03:00
char line [ MAX_URL_SIZE ] ;
2012-05-20 17:20:56 +03:00
int err = 0 ;
2012-06-17 21:19:41 +03:00
s - > chunksize = - 1 ;
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for ( ; ; ) {
2012-05-30 12:52:11 +03:00
if ( ( err = http_get_line ( s , line , sizeof ( line ) ) ) < 0 )
return err ;
2012-05-20 17:20:56 +03:00
2013-11-04 17:59:19 +03:00
av_log ( h , AV_LOG_DEBUG , " header='%s' \n " , line ) ;
2012-05-20 17:20:56 +03:00
err = process_line ( h , line , s - > line_count , new_location ) ;
if ( err < 0 )
return err ;
if ( err = = 0 )
break ;
s - > line_count + + ;
}
2013-11-03 20:17:45 +03:00
if ( s - > seekable = = - 1 & & s - > is_mediagateway & & s - > filesize = = 2000000000 )
h - > is_streamed = 1 ; /* we can in fact _not_ seek */
2012-05-20 17:20:56 +03:00
return err ;
}
2011-11-11 12:21:42 +03:00
static int http_connect ( URLContext * h , const char * path , const char * local_path ,
const char * hoststr , const char * auth ,
const char * proxyauth , int * new_location )
2007-02-28 05:40:23 +02:00
{
HTTPContext * s = h - > priv_data ;
2009-06-06 19:44:21 +03:00
int post , err ;
2014-07-22 17:37:09 +03:00
char headers [ HTTP_HEADERS_SIZE ] = " " ;
2011-11-11 12:21:42 +03:00
char * authstr = NULL , * proxyauthstr = NULL ;
2008-10-03 13:16:29 +03:00
int64_t off = s - > off ;
2010-06-08 13:26:16 +03:00
int len = 0 ;
2011-11-11 12:21:42 +03:00
const char * method ;
2013-10-09 13:24:40 +03:00
int send_expect_100 = 0 ;
2007-02-28 05:40:23 +02:00
/* send http header */
2011-04-15 17:42:09 +03:00
post = h - > flags & AVIO_FLAG_WRITE ;
2012-05-30 12:27:18 +03:00
if ( s - > post_data ) {
/* force POST method and disable chunked encoding when
* custom HTTP post data is set */
2014-07-22 21:42:03 +03:00
post = 1 ;
2012-05-30 12:27:18 +03:00
s - > chunked_post = 0 ;
}
2014-07-18 01:39:43 +03:00
if ( s - > method )
method = s - > method ;
else
method = post ? " POST " : " GET " ;
2014-07-22 21:42:03 +03:00
authstr = ff_http_auth_create_response ( & s - > auth_state , auth ,
local_path , method ) ;
2011-11-11 12:21:42 +03:00
proxyauthstr = ff_http_auth_create_response ( & s - > proxy_auth_state , proxyauth ,
local_path , method ) ;
2013-10-09 13:24:40 +03:00
if ( post & & ! s - > post_data ) {
send_expect_100 = s - > send_expect_100 ;
/* The user has supplied authentication but we don't know the auth type,
* send Expect : 100 - continue to get the 401 response including the
* WWW - Authenticate header , or an 100 continue if no auth actually
* is needed . */
2013-10-14 01:56:32 +03:00
if ( auth & & * auth & &
s - > auth_state . auth_type = = HTTP_AUTH_NONE & &
2013-10-09 13:24:40 +03:00
s - > http_code ! = 401 )
send_expect_100 = 1 ;
}
2010-06-08 13:26:16 +03:00
/* set default headers if needed */
if ( ! has_header ( s - > headers , " \r \n User-Agent: " ) )
2011-09-28 22:07:12 +03:00
len + = av_strlcatf ( headers + len , sizeof ( headers ) - len ,
2013-04-04 13:18:02 +03:00
" User-Agent: %s \r \n " , s - > user_agent ) ;
2010-06-08 13:26:16 +03:00
if ( ! has_header ( s - > headers , " \r \n Accept: " ) )
len + = av_strlcpy ( headers + len , " Accept: */* \r \n " ,
sizeof ( headers ) - len ) ;
2012-10-03 00:22:44 +03:00
// Note: we send this on purpose even when s->off is 0 when we're probing,
2012-09-23 16:26:56 +03:00
// since it allows us to detect more reliably if a (non-conforming)
// server supports seeking by analysing the reply headers.
2014-03-12 06:12:04 +03:00
if ( ! has_header ( s - > headers , " \r \n Range: " ) & & ! post & & ( s - > off > 0 | | s - > end_off | | s - > seekable = = - 1 ) ) {
2010-06-08 13:26:16 +03:00
len + = av_strlcatf ( headers + len , sizeof ( headers ) - len ,
2013-12-28 10:41:24 +03:00
" Range: bytes=% " PRId64 " - " , s - > off ) ;
2014-03-06 20:40:00 +03:00
if ( s - > end_off )
2013-12-28 10:41:24 +03:00
len + = av_strlcatf ( headers + len , sizeof ( headers ) - len ,
2014-03-06 20:40:00 +03:00
" % " PRId64 , s - > end_off - 1 ) ;
2013-12-28 10:41:24 +03:00
len + = av_strlcpy ( headers + len , " \r \n " ,
sizeof ( headers ) - len ) ;
}
2013-10-09 13:24:40 +03:00
if ( send_expect_100 & & ! has_header ( s - > headers , " \r \n Expect: " ) )
len + = av_strlcatf ( headers + len , sizeof ( headers ) - len ,
" Expect: 100-continue \r \n " ) ;
2012-05-28 16:03:19 +03:00
if ( ! has_header ( s - > headers , " \r \n Connection: " ) ) {
2014-07-22 21:42:03 +03:00
if ( s - > multiple_requests )
2012-05-28 16:03:19 +03:00
len + = av_strlcpy ( headers + len , " Connection: keep-alive \r \n " ,
sizeof ( headers ) - len ) ;
2014-07-22 21:42:03 +03:00
else
2012-05-28 16:03:19 +03:00
len + = av_strlcpy ( headers + len , " Connection: close \r \n " ,
sizeof ( headers ) - len ) ;
}
2010-06-08 13:26:16 +03:00
if ( ! has_header ( s - > headers , " \r \n Host: " ) )
len + = av_strlcatf ( headers + len , sizeof ( headers ) - len ,
" Host: %s \r \n " , hoststr ) ;
2012-05-30 12:27:18 +03:00
if ( ! has_header ( s - > headers , " \r \n Content-Length: " ) & & s - > post_data )
len + = av_strlcatf ( headers + len , sizeof ( headers ) - len ,
" Content-Length: %d \r \n " , s - > post_datalen ) ;
2014-03-06 20:40:03 +03:00
2012-10-23 12:13:42 +03:00
if ( ! has_header ( s - > headers , " \r \n Content-Type: " ) & & s - > content_type )
len + = av_strlcatf ( headers + len , sizeof ( headers ) - len ,
" Content-Type: %s \r \n " , s - > content_type ) ;
2013-01-14 05:32:57 +03:00
if ( ! has_header ( s - > headers , " \r \n Cookie: " ) & & s - > cookies ) {
char * cookies = NULL ;
2014-03-21 20:51:30 +03:00
if ( ! get_cookies ( s , & cookies , path , hoststr ) & & cookies ) {
2013-01-14 05:32:57 +03:00
len + = av_strlcatf ( headers + len , sizeof ( headers ) - len ,
" Cookie: %s \r \n " , cookies ) ;
av_free ( cookies ) ;
}
}
2014-07-22 21:42:03 +03:00
if ( ! has_header ( s - > headers , " \r \n Icy-MetaData: " ) & & s - > icy )
2013-06-26 01:53:26 +03:00
len + = av_strlcatf ( headers + len , sizeof ( headers ) - len ,
" Icy-MetaData: %d \r \n " , 1 ) ;
2010-06-08 13:26:16 +03:00
/* now add in custom headers */
2011-11-07 12:43:13 +03:00
if ( s - > headers )
av_strlcpy ( headers + len , s - > headers , sizeof ( headers ) - len ) ;
2010-06-08 13:26:16 +03:00
2007-02-28 05:40:23 +02:00
snprintf ( s - > buffer , sizeof ( s - > buffer ) ,
" %s %s HTTP/1.1 \r \n "
2010-03-25 00:32:05 +02:00
" %s "
2010-06-08 13:26:16 +03:00
" %s "
2010-01-12 18:36:00 +02:00
" %s "
2011-11-11 12:21:42 +03:00
" %s%s "
2007-02-28 05:40:23 +02:00
" \r \n " ,
2011-11-11 12:21:42 +03:00
method ,
2007-02-28 05:40:23 +02:00
path ,
http: Change the chunksize AVOption into chunked_post
The chunksize internal variable has two different uses - for
reading, it's the amount of data left of the current chunk
(or -1 if the server doesn't send data in chunked mode), where
it's only an internal state variable. For writing, it's used
to decide whether to enable chunked encoding (by default), by
using the value 0, or disable chunked encoding (value -1).
This, while consistent, doesn't make much sense to expose
as an AVOption. This splits the usage of the internal variable
into two variables, chunksize which is used for reading (as
before), and chunked_post which is the user-settable option,
with the values 0 and 1, where 1 is default.
Signed-off-by: Martin Storsjö <martin@martin.st>
2011-11-10 12:03:35 +03:00
post & & s - > chunked_post ? " Transfer-Encoding: chunked \r \n " : " " ,
2010-06-08 13:26:16 +03:00
headers ,
2011-11-11 12:21:42 +03:00
authstr ? authstr : " " ,
proxyauthstr ? " Proxy- " : " " , proxyauthstr ? proxyauthstr : " " ) ;
2007-02-28 05:40:23 +02:00
2013-11-04 17:59:19 +03:00
av_log ( h , AV_LOG_DEBUG , " request: %s \n " , s - > buffer ) ;
2012-05-30 12:52:11 +03:00
if ( ( err = ffurl_write ( s - > hd , s - > buffer , strlen ( s - > buffer ) ) ) < 0 )
2014-03-21 20:51:31 +03:00
goto done ;
2007-02-28 05:40:23 +02:00
2012-05-30 12:27:18 +03:00
if ( s - > post_data )
if ( ( err = ffurl_write ( s - > hd , s - > post_data , s - > post_datalen ) ) < 0 )
2014-03-21 20:51:31 +03:00
goto done ;
2007-02-28 05:40:23 +02:00
/* init input buffer */
2014-07-22 21:42:03 +03:00
s - > buf_ptr = s - > buffer ;
s - > buf_end = s - > buffer ;
s - > line_count = 0 ;
s - > off = 0 ;
s - > icy_data_read = 0 ;
s - > filesize = - 1 ;
s - > willclose = 0 ;
2012-05-21 12:26:40 +03:00
s - > end_chunked_post = 0 ;
2014-07-22 21:42:03 +03:00
s - > end_header = 0 ;
2013-10-09 13:24:40 +03:00
if ( post & & ! s - > post_data & & ! send_expect_100 ) {
2010-06-04 09:35:12 +03:00
/* Pretend that it did work. We didn't read any header yet, since
* we ' ve still to send the POST data , but the code calling this
* function will check http_code after we return . */
s - > http_code = 200 ;
2014-03-21 20:51:31 +03:00
err = 0 ;
goto done ;
2007-02-28 05:40:23 +02:00
}
/* wait for header */
2012-05-20 17:20:56 +03:00
err = http_read_header ( h , new_location ) ;
if ( err < 0 )
2014-03-21 20:51:31 +03:00
goto done ;
2007-02-28 05:40:23 +02:00
2014-03-21 20:51:31 +03:00
err = ( off = = s - > off ) ? 0 : - 1 ;
done :
av_freep ( & authstr ) ;
av_freep ( & proxyauthstr ) ;
return err ;
2007-02-28 05:40:23 +02:00
}
2011-11-10 15:52:50 +03:00
static int http_buf_read ( URLContext * h , uint8_t * buf , int size )
2007-02-28 05:40:23 +02:00
{
HTTPContext * s = h - > priv_data ;
int len ;
2011-11-10 15:52:50 +03:00
/* read bytes from input buffer first */
len = s - > buf_end - s - > buf_ptr ;
if ( len > 0 ) {
if ( len > size )
len = size ;
memcpy ( buf , s - > buf_ptr , len ) ;
s - > buf_ptr + = len ;
} else {
http: Stop reading after receiving the whole file for non-chunked transfers
Previously this logic was only used if the server didn't
respond with Connection: close, but use it even for that case,
if the server response is non-chunked.
Originally the http code has relied on Connection: close to close
the socket when the file/stream is received - the http protocol
code just kept reading from the socket until the socket was closed.
In f240ed18 we added a check for the file size, because some
http servers didn't respond with Connection: close (and wouldn't
close the socket) even though we requested it, which meant that the
http protocol blocked for a long time at the end of files, waiting
for a socket level timeout.
When reading over tls, trying to read at the end of the connection,
when the peer has closed the connection, can produce spurious (but
harmless) warnings. Therefore always voluntarily stop reading when
the specified file size has been received, if not using a chunked
transfer encoding. (For chunked transfers, we already return 0
as soon as we get the chunk header indicating end of stream.)
Signed-off-by: Martin Storsjö <martin@martin.st>
2014-08-11 10:18:28 +03:00
if ( ( ! s - > willclose | | s - > chunksize < 0 ) & &
s - > filesize > = 0 & & s - > off > = s - > filesize )
2011-11-10 15:52:50 +03:00
return AVERROR_EOF ;
len = ffurl_read ( s - > hd , buf , size ) ;
}
if ( len > 0 ) {
s - > off + = len ;
if ( s - > chunksize > 0 )
s - > chunksize - = len ;
}
return len ;
}
2013-07-22 23:07:10 +03:00
# if CONFIG_ZLIB
# define DECOMPRESS_BUF_SIZE (256 * 1024)
static int http_buf_read_compressed ( URLContext * h , uint8_t * buf , int size )
{
HTTPContext * s = h - > priv_data ;
int ret ;
if ( ! s - > inflate_buffer ) {
s - > inflate_buffer = av_malloc ( DECOMPRESS_BUF_SIZE ) ;
if ( ! s - > inflate_buffer )
return AVERROR ( ENOMEM ) ;
}
if ( s - > inflate_stream . avail_in = = 0 ) {
int read = http_buf_read ( h , s - > inflate_buffer , DECOMPRESS_BUF_SIZE ) ;
if ( read < = 0 )
return read ;
s - > inflate_stream . next_in = s - > inflate_buffer ;
s - > inflate_stream . avail_in = read ;
}
s - > inflate_stream . avail_out = size ;
s - > inflate_stream . next_out = buf ;
ret = inflate ( & s - > inflate_stream , Z_SYNC_FLUSH ) ;
if ( ret ! = Z_OK & & ret ! = Z_STREAM_END )
2014-07-22 21:42:03 +03:00
av_log ( h , AV_LOG_WARNING , " inflate return value: %d, %s \n " ,
ret , s - > inflate_stream . msg ) ;
2013-07-22 23:07:10 +03:00
return size - s - > inflate_stream . avail_out ;
}
2014-07-22 21:42:03 +03:00
# endif /* CONFIG_ZLIB */
2013-07-22 23:07:10 +03:00
2014-03-02 22:26:19 +03:00
static int http_read_stream ( URLContext * h , uint8_t * buf , int size )
2011-11-10 15:52:50 +03:00
{
HTTPContext * s = h - > priv_data ;
2012-05-21 12:27:10 +03:00
int err , new_location ;
2012-06-17 21:15:32 +03:00
if ( ! s - > hd )
return AVERROR_EOF ;
2012-05-21 12:27:10 +03:00
2012-06-17 21:19:41 +03:00
if ( s - > end_chunked_post & & ! s - > end_header ) {
err = http_read_header ( h , & new_location ) ;
if ( err < 0 )
return err ;
2012-05-21 12:27:10 +03:00
}
2007-02-28 05:40:23 +02:00
2009-06-23 18:38:53 +03:00
if ( s - > chunksize > = 0 ) {
if ( ! s - > chunksize ) {
char line [ 32 ] ;
do {
2012-05-30 12:52:11 +03:00
if ( ( err = http_get_line ( s , line , sizeof ( line ) ) ) < 0 )
return err ;
2009-06-23 18:38:53 +03:00
} while ( ! * line ) ; /* skip CR LF from last chunk */
s - > chunksize = strtoll ( line , NULL , 16 ) ;
2014-07-22 21:42:03 +03:00
av_dlog ( NULL , " Chunked encoding data size: % " PRId64 " ' \n " ,
s - > chunksize ) ;
2009-06-23 18:38:53 +03:00
if ( ! s - > chunksize )
return 0 ;
}
size = FFMIN ( size , s - > chunksize ) ;
}
2014-03-02 22:26:19 +03:00
# if CONFIG_ZLIB
if ( s - > compressed )
return http_buf_read_compressed ( h , buf , size ) ;
2014-07-22 21:42:03 +03:00
# endif /* CONFIG_ZLIB */
2014-03-02 22:26:19 +03:00
return http_buf_read ( h , buf , size ) ;
}
// Like http_read_stream(), but no short reads.
// Assumes partial reads are an error.
static int http_read_stream_all ( URLContext * h , uint8_t * buf , int size )
{
int pos = 0 ;
while ( pos < size ) {
int len = http_read_stream ( h , buf + pos , size - pos ) ;
if ( len < 0 )
return len ;
pos + = len ;
}
return pos ;
}
2014-08-01 02:56:35 +03:00
static void update_metadata ( HTTPContext * s , char * data )
{
char * key ;
char * val ;
char * end ;
char * next = data ;
while ( * next ) {
key = next ;
val = strstr ( key , " =' " ) ;
if ( ! val )
break ;
end = strstr ( val , " '; " ) ;
if ( ! end )
break ;
* val = ' \0 ' ;
* end = ' \0 ' ;
val + = 2 ;
av_dict_set ( & s - > metadata , key , val , 0 ) ;
next = end + 2 ;
}
}
2014-03-10 23:11:35 +03:00
static int store_icy ( URLContext * h , int size )
{
HTTPContext * s = h - > priv_data ;
/* until next metadata packet */
int remaining = s - > icy_metaint - s - > icy_data_read ;
if ( remaining < 0 )
return AVERROR_INVALIDDATA ;
if ( ! remaining ) {
2014-07-22 21:42:03 +03:00
/* The metadata packet is variable sized. It has a 1 byte header
* which sets the length of the packet ( divided by 16 ) . If it ' s 0 ,
* the metadata doesn ' t change . After the packet , icy_metaint bytes
* of normal data follows . */
2014-03-10 23:11:35 +03:00
uint8_t ch ;
int len = http_read_stream_all ( h , & ch , 1 ) ;
if ( len < 0 )
return len ;
if ( ch > 0 ) {
char data [ 255 * 16 + 1 ] ;
int ret ;
len = ch * 16 ;
ret = http_read_stream_all ( h , data , len ) ;
if ( ret < 0 )
return ret ;
data [ len + 1 ] = 0 ;
if ( ( ret = av_opt_set ( s , " icy_metadata_packet " , data , 0 ) ) < 0 )
return ret ;
2014-08-01 02:56:35 +03:00
update_metadata ( s , data ) ;
2014-03-10 23:11:35 +03:00
}
s - > icy_data_read = 0 ;
2014-07-22 21:42:03 +03:00
remaining = s - > icy_metaint ;
2014-03-10 23:11:35 +03:00
}
return FFMIN ( size , remaining ) ;
}
2014-03-02 22:26:19 +03:00
static int http_read ( URLContext * h , uint8_t * buf , int size )
{
HTTPContext * s = h - > priv_data ;
2013-06-26 01:53:26 +03:00
if ( s - > icy_metaint > 0 ) {
2014-03-10 23:11:35 +03:00
size = store_icy ( h , size ) ;
if ( size < 0 )
return size ;
2013-06-26 01:53:26 +03:00
}
2014-03-10 23:11:35 +03:00
2014-03-02 22:26:19 +03:00
size = http_read_stream ( h , buf , size ) ;
if ( size > 0 )
s - > icy_data_read + = size ;
return size ;
2007-02-28 05:40:23 +02:00
}
/* used only when posting data */
2010-06-01 10:46:23 +03:00
static int http_write ( URLContext * h , const uint8_t * buf , int size )
2007-02-28 05:40:23 +02:00
{
2010-06-08 14:48:03 +03:00
char temp [ 11 ] = " " ; /* 32-bit hex + CRLF + nul */
2010-01-12 18:36:00 +02:00
int ret ;
char crlf [ ] = " \r \n " ;
2007-02-28 05:40:23 +02:00
HTTPContext * s = h - > priv_data ;
2010-01-12 18:36:00 +02:00
http: Change the chunksize AVOption into chunked_post
The chunksize internal variable has two different uses - for
reading, it's the amount of data left of the current chunk
(or -1 if the server doesn't send data in chunked mode), where
it's only an internal state variable. For writing, it's used
to decide whether to enable chunked encoding (by default), by
using the value 0, or disable chunked encoding (value -1).
This, while consistent, doesn't make much sense to expose
as an AVOption. This splits the usage of the internal variable
into two variables, chunksize which is used for reading (as
before), and chunked_post which is the user-settable option,
with the values 0 and 1, where 1 is default.
Signed-off-by: Martin Storsjö <martin@martin.st>
2011-11-10 12:03:35 +03:00
if ( ! s - > chunked_post ) {
2010-06-21 21:40:53 +03:00
/* non-chunked data is sent without any special encoding */
2011-03-31 17:48:01 +03:00
return ffurl_write ( s - > hd , buf , size ) ;
2010-01-12 18:36:00 +02:00
}
/* silently ignore zero-size data since chunk encoding that would
* signal EOF */
if ( size > 0 ) {
/* upload data using chunked encoding */
2010-06-21 22:02:35 +03:00
snprintf ( temp , sizeof ( temp ) , " %x \r \n " , size ) ;
2010-06-08 14:48:03 +03:00
2011-03-31 17:48:01 +03:00
if ( ( ret = ffurl_write ( s - > hd , temp , strlen ( temp ) ) ) < 0 | |
2014-07-22 21:42:03 +03:00
( ret = ffurl_write ( s - > hd , buf , size ) ) < 0 | |
2011-03-31 17:48:01 +03:00
( ret = ffurl_write ( s - > hd , crlf , sizeof ( crlf ) - 1 ) ) < 0 )
2010-01-12 18:36:00 +02:00
return ret ;
}
return size ;
2007-02-28 05:40:23 +02:00
}
2012-05-21 12:26:40 +03:00
static int http_shutdown ( URLContext * h , int flags )
2007-02-28 05:40:23 +02:00
{
2010-01-12 18:36:00 +02:00
int ret = 0 ;
char footer [ ] = " 0 \r \n \r \n " ;
2007-02-28 05:40:23 +02:00
HTTPContext * s = h - > priv_data ;
2010-01-12 18:36:00 +02:00
/* signal end of chunked encoding if used */
2012-05-21 12:26:40 +03:00
if ( ( flags & AVIO_FLAG_WRITE ) & & s - > chunked_post ) {
2011-03-31 17:48:01 +03:00
ret = ffurl_write ( s - > hd , footer , sizeof ( footer ) - 1 ) ;
2010-01-12 18:36:00 +02:00
ret = ret > 0 ? 0 : ret ;
2012-05-21 12:26:40 +03:00
s - > end_chunked_post = 1 ;
}
return ret ;
}
static int http_close ( URLContext * h )
{
int ret = 0 ;
HTTPContext * s = h - > priv_data ;
2013-07-22 23:07:10 +03:00
# if CONFIG_ZLIB
inflateEnd ( & s - > inflate_stream ) ;
av_freep ( & s - > inflate_buffer ) ;
2014-07-22 21:42:03 +03:00
# endif /* CONFIG_ZLIB */
2013-07-22 23:07:10 +03:00
2014-07-22 21:42:03 +03:00
if ( ! s - > end_chunked_post )
2012-05-21 12:26:40 +03:00
/* Close the write direction by sending the end of chunked encoding. */
ret = http_shutdown ( h , h - > flags ) ;
2010-01-12 18:36:00 +02:00
2010-06-08 14:18:22 +03:00
if ( s - > hd )
2012-06-01 15:48:17 +03:00
ffurl_closep ( & s - > hd ) ;
2011-11-07 12:06:50 +03:00
av_dict_free ( & s - > chained_options ) ;
2010-01-12 18:36:00 +02:00
return ret ;
2007-02-28 05:40:23 +02:00
}
2008-10-03 13:16:29 +03:00
static int64_t http_seek ( URLContext * h , int64_t off , int whence )
2007-02-28 05:40:23 +02:00
{
HTTPContext * s = h - > priv_data ;
URLContext * old_hd = s - > hd ;
2008-10-03 13:16:29 +03:00
int64_t old_off = s - > off ;
2010-01-14 01:27:52 +02:00
uint8_t old_buf [ BUFFER_SIZE ] ;
2014-03-10 19:17:25 +03:00
int old_buf_size , ret ;
2011-11-07 12:06:50 +03:00
AVDictionary * options = NULL ;
2007-02-28 05:40:23 +02:00
if ( whence = = AVSEEK_SIZE )
return s - > filesize ;
2014-03-06 20:40:01 +03:00
else if ( ( whence = = SEEK_CUR & & off = = 0 ) | |
( whence = = SEEK_SET & & off = = s - > off ) )
2013-12-30 13:46:32 +03:00
return s - > off ;
2007-02-28 05:40:23 +02:00
else if ( ( s - > filesize = = - 1 & & whence = = SEEK_END ) | | h - > is_streamed )
2014-03-10 19:17:25 +03:00
return AVERROR ( ENOSYS ) ;
2007-02-28 05:40:23 +02:00
if ( whence = = SEEK_CUR )
off + = s - > off ;
else if ( whence = = SEEK_END )
off + = s - > filesize ;
2014-02-28 02:36:07 +03:00
else if ( whence ! = SEEK_SET )
return AVERROR ( EINVAL ) ;
2014-02-28 02:36:06 +03:00
if ( off < 0 )
return AVERROR ( EINVAL ) ;
2007-02-28 05:40:23 +02:00
s - > off = off ;
2014-02-28 02:36:06 +03:00
/* we save the old context in case the seek fails */
old_buf_size = s - > buf_end - s - > buf_ptr ;
memcpy ( old_buf , s - > buf_ptr , old_buf_size ) ;
s - > hd = NULL ;
2007-02-28 05:40:23 +02:00
/* if it fails, continue on old connection */
2014-03-10 19:17:25 +03:00
if ( ( ret = http_open_cnx ( h , & options ) ) < 0 ) {
2011-11-07 12:06:50 +03:00
av_dict_free ( & options ) ;
2010-01-14 01:27:52 +02:00
memcpy ( s - > buffer , old_buf , old_buf_size ) ;
s - > buf_ptr = s - > buffer ;
s - > buf_end = s - > buffer + old_buf_size ;
2014-07-22 21:42:03 +03:00
s - > hd = old_hd ;
s - > off = old_off ;
2014-03-10 19:17:25 +03:00
return ret ;
2007-02-28 05:40:23 +02:00
}
2011-11-07 12:06:50 +03:00
av_dict_free ( & options ) ;
2011-03-31 18:36:06 +03:00
ffurl_close ( old_hd ) ;
2007-02-28 05:40:23 +02:00
return off ;
}
2014-07-22 21:42:03 +03:00
static int http_get_file_handle ( URLContext * h )
2009-03-03 19:04:51 +02:00
{
HTTPContext * s = h - > priv_data ;
2011-03-31 18:51:24 +03:00
return ffurl_get_file_handle ( s - > hd ) ;
2009-03-03 19:04:51 +02:00
}
2014-07-22 21:42:03 +03:00
# define HTTP_CLASS(flavor) \
static const AVClass flavor # # _context_class = { \
. class_name = # flavor , \
. item_name = av_default_item_name , \
. option = options , \
. version = LIBAVUTIL_VERSION_INT , \
2014-07-18 01:55:05 +03:00
}
2011-02-06 00:20:26 +02:00
# if CONFIG_HTTP_PROTOCOL
2014-07-18 01:55:05 +03:00
HTTP_CLASS ( http ) ;
2011-01-26 00:03:28 +02:00
URLProtocol ff_http_protocol = {
2011-04-08 08:41:47 +03:00
. name = " http " ,
2011-11-07 12:06:50 +03:00
. url_open2 = http_open ,
2011-04-08 08:41:47 +03:00
. url_read = http_read ,
. url_write = http_write ,
. url_seek = http_seek ,
. url_close = http_close ,
2009-03-03 19:04:51 +02:00
. url_get_file_handle = http_get_file_handle ,
2012-05-21 12:26:40 +03:00
. url_shutdown = http_shutdown ,
2011-04-08 08:41:47 +03:00
. priv_data_size = sizeof ( HTTPContext ) ,
2011-11-05 14:54:01 +03:00
. priv_data_class = & http_context_class ,
2011-12-30 12:38:05 +03:00
. flags = URL_PROTOCOL_FLAG_NETWORK ,
2007-02-28 05:40:23 +02:00
} ;
2014-07-22 21:42:03 +03:00
# endif /* CONFIG_HTTP_PROTOCOL */
2011-02-06 00:20:26 +02:00
# if CONFIG_HTTPS_PROTOCOL
2014-07-18 01:55:05 +03:00
HTTP_CLASS ( https ) ;
2011-02-06 00:20:26 +02:00
URLProtocol ff_https_protocol = {
. name = " https " ,
2011-11-07 12:06:50 +03:00
. url_open2 = http_open ,
2011-02-06 00:20:26 +02:00
. url_read = http_read ,
. url_write = http_write ,
. url_seek = http_seek ,
. url_close = http_close ,
. url_get_file_handle = http_get_file_handle ,
2012-06-01 16:36:20 +03:00
. url_shutdown = http_shutdown ,
2011-02-06 00:20:26 +02:00
. priv_data_size = sizeof ( HTTPContext ) ,
2011-11-05 14:54:01 +03:00
. priv_data_class = & https_context_class ,
2011-12-30 12:38:05 +03:00
. flags = URL_PROTOCOL_FLAG_NETWORK ,
2011-02-06 00:20:26 +02:00
} ;
2014-07-22 21:42:03 +03:00
# endif /* CONFIG_HTTPS_PROTOCOL */
2011-11-10 15:53:16 +03:00
# if CONFIG_HTTPPROXY_PROTOCOL
static int http_proxy_close ( URLContext * h )
{
HTTPContext * s = h - > priv_data ;
if ( s - > hd )
2012-06-01 15:48:17 +03:00
ffurl_closep ( & s - > hd ) ;
2011-11-10 15:53:16 +03:00
return 0 ;
}
static int http_proxy_open ( URLContext * h , const char * uri , int flags )
{
HTTPContext * s = h - > priv_data ;
char hostname [ 1024 ] , hoststr [ 1024 ] ;
char auth [ 1024 ] , pathbuf [ 1024 ] , * path ;
2012-05-20 17:20:56 +03:00
char lower_url [ 100 ] ;
2012-03-12 15:00:16 +03:00
int port , ret = 0 , attempts = 0 ;
2011-11-10 15:53:16 +03:00
HTTPAuthType cur_auth_type ;
char * authstr ;
2012-05-20 17:20:56 +03:00
int new_loc ;
2011-11-10 15:53:16 +03:00
2012-10-03 00:22:44 +03:00
if ( s - > seekable = = 1 )
h - > is_streamed = 0 ;
else
h - > is_streamed = 1 ;
2011-11-10 15:53:16 +03:00
av_url_split ( NULL , 0 , auth , sizeof ( auth ) , hostname , sizeof ( hostname ) , & port ,
pathbuf , sizeof ( pathbuf ) , uri ) ;
ff_url_join ( hoststr , sizeof ( hoststr ) , NULL , NULL , hostname , port , NULL ) ;
path = pathbuf ;
if ( * path = = ' / ' )
path + + ;
ff_url_join ( lower_url , sizeof ( lower_url ) , " tcp " , NULL , hostname , port ,
NULL ) ;
redo :
ret = ffurl_open ( & s - > hd , lower_url , AVIO_FLAG_READ_WRITE ,
& h - > interrupt_callback , NULL ) ;
if ( ret < 0 )
return ret ;
authstr = ff_http_auth_create_response ( & s - > proxy_auth_state , auth ,
path , " CONNECT " ) ;
snprintf ( s - > buffer , sizeof ( s - > buffer ) ,
" CONNECT %s HTTP/1.1 \r \n "
" Host: %s \r \n "
" Connection: close \r \n "
" %s%s "
" \r \n " ,
path ,
hoststr ,
authstr ? " Proxy- " : " " , authstr ? authstr : " " ) ;
av_freep ( & authstr ) ;
if ( ( ret = ffurl_write ( s - > hd , s - > buffer , strlen ( s - > buffer ) ) ) < 0 )
goto fail ;
2014-07-22 21:42:03 +03:00
s - > buf_ptr = s - > buffer ;
s - > buf_end = s - > buffer ;
2011-11-10 15:53:16 +03:00
s - > line_count = 0 ;
2014-07-22 21:42:03 +03:00
s - > filesize = - 1 ;
2011-11-10 15:53:16 +03:00
cur_auth_type = s - > proxy_auth_state . auth_type ;
2012-05-20 17:20:56 +03:00
/* Note: This uses buffering, potentially reading more than the
* HTTP header . If tunneling a protocol where the server starts
* the conversation , we might buffer part of that here , too .
* Reading that requires using the proper ffurl_read ( ) function
* on this URLContext , not using the fd directly ( as the tls
* protocol does ) . This shouldn ' t be an issue for tls though ,
* since the client starts the conversation there , so there
* is no extra data that we might buffer up here .
*/
ret = http_read_header ( h , & new_loc ) ;
if ( ret < 0 )
goto fail ;
2011-11-10 15:53:16 +03:00
2012-03-12 15:00:16 +03:00
attempts + + ;
if ( s - > http_code = = 407 & &
( cur_auth_type = = HTTP_AUTH_NONE | | s - > proxy_auth_state . stale ) & &
s - > proxy_auth_state . auth_type ! = HTTP_AUTH_NONE & & attempts < 2 ) {
2012-06-01 15:48:17 +03:00
ffurl_closep ( & s - > hd ) ;
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goto redo ;
}
if ( s - > http_code < 400 )
return 0 ;
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ret = ff_http_averror ( s - > http_code , AVERROR ( EIO ) ) ;
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fail :
http_proxy_close ( h ) ;
return ret ;
}
static int http_proxy_write ( URLContext * h , const uint8_t * buf , int size )
{
HTTPContext * s = h - > priv_data ;
return ffurl_write ( s - > hd , buf , size ) ;
}
URLProtocol ff_httpproxy_protocol = {
. name = " httpproxy " ,
. url_open = http_proxy_open ,
. url_read = http_buf_read ,
. url_write = http_proxy_write ,
. url_close = http_proxy_close ,
. url_get_file_handle = http_get_file_handle ,
. priv_data_size = sizeof ( HTTPContext ) ,
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. flags = URL_PROTOCOL_FLAG_NETWORK ,
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} ;
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# endif /* CONFIG_HTTPPROXY_PROTOCOL */