#include <vlc_tls.h>
#include <vlc_strings.h>
#include <vlc_input.h>
+#include <vlc_md5.h>
#ifdef HAVE_ZLIB_H
# include <zlib.h>
/*****************************************************************************
* Local prototypes
*****************************************************************************/
+
+/* RFC 2617: Basic and Digest Access Authentification */
+typedef struct http_auth_t
+{
+ char *psz_realm;
+ char *psz_domain;
+ char *psz_nonce;
+ char *psz_opaque;
+ char *psz_stale;
+ char *psz_algorithm;
+ char *psz_qop;
+ int i_nonce;
+ char *psz_cnonce;
+ char *psz_A1; /* stored A1 value if algorithm = "MD5-sess" */
+} http_auth_t;
+
struct access_sys_t
{
int fd;
/* From uri */
vlc_url_t url;
char *psz_user_agent;
+ http_auth_t auth;
/* Proxy */
vlc_bool_t b_proxy;
vlc_url_t proxy;
+ http_auth_t proxy_auth;
/* */
int i_code;
static char * cookie_get_name( const char * cookie );
static void cookie_append( vlc_array_t * cookies, char * cookie );
+
+static void AuthParseHeader( access_t *p_access, const char *psz_header,
+ http_auth_t *p_auth );
+static void AuthReply( access_t *p_acces, const char *psz_prefix,
+ vlc_url_t *p_url, http_auth_t *p_auth );
+static void AuthReset( http_auth_t *p_auth );
+
/*****************************************************************************
* Open:
*****************************************************************************/
if( p_sys->i_code == 401 )
{
char *psz_login = NULL; char *psz_password = NULL;
+ char psz_msg[250];
int i_ret;
- msg_Dbg( p_access, "authentication failed" );
+ /* FIXME ? */
+ if( p_sys->url.psz_username && p_sys->url.psz_password &&
+ p_sys->auth.psz_nonce && p_sys->auth.i_nonce == 0 )
+ {
+ goto connect;
+ }
+ snprintf( psz_msg, 250,
+ _("Please enter a valid login name and a password for realm %s."),
+ p_sys->auth.psz_realm );
+ msg_Dbg( p_access, "authentication failed for realm %s",
+ p_sys->auth.psz_realm );
i_ret = intf_UserLoginPassword( p_access, _("HTTP authentication"),
- _("Please enter a valid login name and a password."),
- &psz_login, &psz_password );
+ psz_msg, &psz_login, &psz_password );
if( i_ret == DIALOG_OK_YES )
{
msg_Dbg( p_access, "retrying with user=%s, pwd=%s",
p_access->psz_path = strdup( p_sys->psz_location );
/* Clean up current Open() run */
vlc_UrlClean( &p_sys->url );
+ AuthReset( &p_sys->auth );
vlc_UrlClean( &p_sys->proxy );
+ AuthReset( &p_sys->proxy_auth );
free( p_sys->psz_mime );
free( p_sys->psz_pragma );
free( p_sys->psz_location );
access_sys_t *p_sys = p_access->p_sys;
vlc_UrlClean( &p_sys->url );
+ AuthReset( &p_sys->auth );
vlc_UrlClean( &p_sys->proxy );
+ AuthReset( &p_sys->proxy_auth );
free( p_sys->psz_mime );
free( p_sys->psz_pragma );
/* Authentication */
if( p_sys->url.psz_username || p_sys->url.psz_password )
- {
- char buf[strlen( p_sys->url.psz_username ?: "" )
- + strlen( p_sys->url.psz_password ?: "" ) + 2];
- char *b64;
-
- snprintf( buf, sizeof( buf ), "%s:%s", p_sys->url.psz_username ?: "",
- p_sys->url.psz_password ?: "" );
- b64 = vlc_b64_encode( buf );
-
- if( b64 != NULL )
- {
- net_Printf( VLC_OBJECT(p_access), p_sys->fd, pvs,
- "Authorization: Basic %s\r\n", b64 );
- free( b64 );
- }
- }
+ AuthReply( p_access, "", &p_sys->url, &p_sys->auth );
/* Proxy Authentication */
if( p_sys->proxy.psz_username || p_sys->proxy.psz_password )
- {
- char buf[strlen( p_sys->proxy.psz_username ?: "" )
- + strlen( p_sys->proxy.psz_password ?: "" )];
- char *b64;
-
- snprintf( buf, sizeof( buf ), "%s:%s", p_sys->proxy.psz_username ?: "",
- p_sys->proxy.psz_password ?: "" );
- b64 = vlc_b64_encode( buf );
-
- if( b64 != NULL)
- {
- net_Printf( VLC_OBJECT(p_access), p_sys->fd, pvs,
- "Proxy-Authorization: Basic %s\r\n", b64 );
- free( b64 );
- }
- }
+ AuthReply( p_access, "Proxy-", &p_sys->proxy, &p_sys->proxy_auth );
/* ICY meta data request */
net_Printf( VLC_OBJECT(p_access), p_sys->fd, pvs, "Icy-MetaData: 1\r\n" );
!strncasecmp( psz, "x-audiocast", 11 ) )
{
msg_Dbg( p_access, "Meta-Info: %s: %s", psz, p );
- } else if( !strcasecmp( psz, "Set-Cookie" ) )
+ }
+ else if( !strcasecmp( psz, "Set-Cookie" ) )
{
if( p_sys->cookies )
{
else
msg_Dbg( p_access, "We have a Cookie we won't remember: %s", p );
}
+ else if( !strcasecmp( psz, "www-authenticate" ) )
+ {
+ msg_Dbg( p_access, "Authentication header: %s", p );
+ AuthParseHeader( p_access, p, &p_sys->auth );
+ }
+ else if( !strcasecmp( psz, "proxy-authenticate" ) )
+ {
+ msg_Dbg( p_access, "Proxy authentication header: %s", p );
+ AuthParseHeader( p_access, p, &p_sys->proxy_auth );
+ }
+ else if( !strcasecmp( psz, "authentication-info" ) )
+ {
+ msg_Dbg( p_access, "Authentication info: %s", p );
+ /* FIXME: use */
+ }
free( psz );
}
vlc_array_append( cookies, cookie );
}
+/*****************************************************************************
+ * "RFC 2617: Basic and Digest Access Authentification" header parsing
+ *****************************************************************************/
+static char *AuthGetParam( const char *psz_header, const char *psz_param )
+{
+ char psz_what[strlen(psz_param)+3];
+ sprintf( psz_what, "%s=\"", psz_param );
+ psz_header = strstr( psz_header, psz_what );
+ if( psz_header )
+ {
+ const char *psz_end;
+ psz_header += strlen( psz_what );
+ psz_end = strchr( psz_header, '"' );
+ if( !psz_end )
+ {
+ psz_end = psz_header;
+ while( *psz_end ) psz_end++;
+ }
+ return strndup( psz_header, psz_end - psz_header );
+ }
+ else
+ {
+ return NULL;
+ }
+}
+
+static char *AuthGetParamNoQuotes( const char *psz_header, const char *psz_param )
+{
+ char psz_what[strlen(psz_param)+3];
+ sprintf( psz_what, "%s=", psz_param );
+ psz_header = strstr( psz_header, psz_what );
+ if( psz_header )
+ {
+ const char *psz_end;
+ psz_header += strlen( psz_what );
+ psz_end = strchr( psz_header, ',' );
+ if( !psz_end )
+ {
+ psz_end = psz_header;
+ while( *psz_end ) psz_end++;
+ }
+ return strndup( psz_header, psz_end - psz_header );
+ }
+ else
+ {
+ return NULL;
+ }
+}
+
+static void AuthParseHeader( access_t *p_access, const char *psz_header,
+ http_auth_t *p_auth )
+{
+ /* FIXME: multiple auth methods can be listed (comma seperated) */
+
+ /* 2 Basic Authentication Scheme */
+ if( !strncasecmp( psz_header, "Basic ", strlen( "Basic " ) ) )
+ {
+ msg_Dbg( p_access, "Using Basic Authentication" );
+ psz_header += strlen( "Basic " );
+ p_auth->psz_realm = AuthGetParam( psz_header, "realm" );
+ if( !p_auth->psz_realm )
+ msg_Warn( p_access, "Basic Authentication: "
+ "Mandatory 'realm' parameter is missing" );
+ }
+ /* 3 Digest Access Authentication Scheme */
+ else if( !strncasecmp( psz_header, "Digest ", strlen( "Digest " ) ) )
+ {
+ msg_Dbg( p_access, "Using Digest Access Authentication" );
+ if( p_auth->psz_nonce ) return; /* FIXME */
+ psz_header += strlen( "Digest " );
+ p_auth->psz_realm = AuthGetParam( psz_header, "realm" );
+ p_auth->psz_domain = AuthGetParam( psz_header, "domain" );
+ p_auth->psz_nonce = AuthGetParam( psz_header, "nonce" );
+ p_auth->psz_opaque = AuthGetParam( psz_header, "opaque" );
+ p_auth->psz_stale = AuthGetParamNoQuotes( psz_header, "stale" );
+ p_auth->psz_algorithm = AuthGetParamNoQuotes( psz_header, "algorithm" );
+ p_auth->psz_qop = AuthGetParam( psz_header, "qop" );
+ p_auth->i_nonce = 0;
+ /* printf("realm: %s\ndomain: %s\nnonce: %s\nopaque: %s\nstale: %s\nalgorithm: %s\nqop: %s\n",p_auth->psz_realm,p_auth->psz_domain,p_auth->psz_nonce,p_auth->psz_opaque,p_auth->psz_stale,p_auth->psz_algorithm,p_auth->psz_qop); */
+ if( !p_auth->psz_realm )
+ msg_Warn( p_access, "Digest Access Authentication: "
+ "Mandatory 'realm' parameter is missing" );
+ if( !p_auth->psz_nonce )
+ msg_Warn( p_access, "Digest Access Authentication: "
+ "Mandatory 'nonce' parameter is missing" );
+ if( p_auth->psz_qop ) /* FIXME */
+ {
+ char *psz_tmp = strchr( p_auth->psz_qop, ',' );
+ if( psz_tmp ) *psz_tmp = '\0';
+ }
+ }
+ else
+ {
+ const char *psz_end = strchr( psz_header, ' ' );
+ if( !psz_end )
+ {
+ psz_end = psz_header;
+ while( *psz_end ) psz_end++;
+ }
+ msg_Warn( p_access, "Unknown authentication scheme: '%*s'",
+ psz_end - psz_header, psz_header );
+ }
+}
+
+static char *AuthAlgoMD5( const char *psz_data )
+{
+ struct md5_s md5;
+ char *psz_md5;
+ InitMD5( &md5 );
+ AddMD5( &md5, psz_data, strlen( psz_data ) );
+ EndMD5( &md5 );
+ psz_md5 = psz_md5_hash( &md5 );
+ return psz_md5;
+}
+
+static void AuthReply( access_t *p_access, const char *psz_prefix,
+ vlc_url_t *p_url, http_auth_t *p_auth )
+{
+ access_sys_t *p_sys = p_access->p_sys;
+ v_socket_t *pvs = p_sys->p_vs;
+
+ const char *psz_username = p_url->psz_username ?: "";
+ const char *psz_password = p_url->psz_password ?: "";
+
+ if( p_auth->psz_nonce )
+ {
+ /* Digest Access Authentication */
+ char *psz_response = NULL;
+ char *psz_A1 = NULL;
+ char *psz_A2 = NULL;
+ char *psz_secret = NULL;
+ char *psz_data = NULL;
+ char * (*pf_algo)( const char * );
+
+ if( p_auth->psz_algorithm == NULL
+ || !strcmp( p_auth->psz_algorithm, "MD5" )
+ || !strcmp( p_auth->psz_algorithm, "MD5-sess" ) )
+ {
+ pf_algo = AuthAlgoMD5;
+ }
+ else
+ {
+ msg_Err( p_access, "Digest Access Authentication: "
+ "Unknown algorithm '%s'", p_auth->psz_algorithm );
+ }
+ if( !pf_algo ) return;
+
+ if( p_auth->psz_qop )
+ {
+ /* FIXME: needs to be really random to prevent man in the middle
+ * attacks */
+ free( p_auth->psz_cnonce );
+ p_auth->psz_cnonce = strdup( "Some random string FIXME" );
+ }
+ p_auth->i_nonce ++;
+
+ if( p_auth->psz_algorithm && !strcmp( p_auth->psz_algorithm, "MD5-sess" ) )
+ {
+ if( !p_auth->psz_A1 )
+ {
+ char *psz_tmp = NULL;
+ if( asprintf( &psz_A1, "%s:%s:%s", psz_username,
+ p_auth->psz_realm, psz_password ) < 0 )
+ goto error;
+ psz_tmp = pf_algo( psz_A1 );
+ free( psz_A1 ); psz_A1 = NULL;
+ if( !psz_tmp ) goto error;
+ if( asprintf( &psz_A1, "%s:%s:%s", psz_tmp, p_auth->psz_nonce,
+ p_auth->psz_cnonce ) < 0 )
+ {
+ free( psz_tmp );
+ goto error;
+ }
+ p_auth->psz_A1 = strdup( psz_A1 );
+ }
+ else
+ {
+ psz_A1 = strdup( p_auth->psz_A1 );
+ }
+ }
+ else
+ {
+ if( asprintf( &psz_A1, "%s:%s:%s", psz_username, p_auth->psz_realm,
+ psz_password ) < 0 ) goto error;
+ }
+
+ if( !p_auth->psz_qop || !strcmp( p_auth->psz_qop, "auth" ) )
+ {
+ if( asprintf( &psz_A2, "%s:%s", "GET", p_url->psz_path ?: "/" )
+ < 0 ) goto error;
+ }
+ else
+ {
+ char *psz_tmp = pf_algo( "FIXME entity-body" ); /* FIXME */
+ if( asprintf( &psz_A2, "%s:%s:%s", "GET", p_url->psz_path ?: "/",
+ psz_tmp ) < 0 )
+ {
+ free( psz_tmp );
+ goto error;
+ }
+ free( psz_tmp );
+ }
+
+ psz_secret = pf_algo( psz_A1 );
+
+ if( p_auth->psz_qop
+ && ( !strcmp( p_auth->psz_qop, "auth" )
+ || !strcmp( p_auth->psz_qop, "auth-int" ) ) )
+ {
+ char *psz_tmp = pf_algo( psz_A2 );
+ if( !psz_tmp ) goto error;
+ if( asprintf( &psz_data, "%s:%08x:%s:%s:%s",
+ p_auth->psz_nonce, p_auth->i_nonce,
+ p_auth->psz_cnonce, p_auth->psz_qop, psz_tmp ) < 0 )
+ {
+ free( psz_tmp );
+ goto error;
+ }
+ free( psz_tmp );
+ }
+ else
+ {
+ char *psz_tmp = pf_algo( psz_A2 );
+ if( !psz_tmp ) goto error;
+ if( asprintf( &psz_data, "%s:%s", p_auth->psz_nonce, psz_tmp ) < 0 )
+ {
+ free( psz_tmp );
+ goto error;
+ }
+ free( psz_tmp );
+ }
+
+ if( psz_secret && psz_data )
+ {
+ char *psz_tmp = NULL;
+ if( asprintf( &psz_tmp, "%s:%s", psz_secret, psz_data ) < 0 )
+ goto error;
+ psz_response = pf_algo( psz_tmp );
+ free( psz_tmp );
+ if( !psz_response )
+ goto error;
+ }
+ else
+ {
+ goto error;
+ }
+
+ net_Printf( VLC_OBJECT(p_access), p_sys->fd, pvs,
+ "%sAuthorization: Digest "
+ /* Mandatory parameters */
+ "username=\"%s\", "
+ "realm=\"%s\", "
+ "nonce=\"%s\", "
+ "uri=\"%s\", "
+ "response=\"%s\", "
+ /* Optional parameters */
+ "%s%s%s" /* algorithm */
+ "%s%s%s" /* cnonce */
+ "%s%s%s" /* opaque */
+ "%s%s%s" /* message qop */
+ "%s%08x%s" /* nonce count */
+ "\r\n",
+ /* Mandatory parameters */
+ psz_prefix,
+ psz_username,
+ p_auth->psz_realm,
+ p_auth->psz_nonce,
+ p_url->psz_path ?: "/",
+ psz_response,
+ /* Optional parameters */
+ p_auth->psz_algorithm ? "algorithm=\"" : "",
+ p_auth->psz_algorithm ?: "",
+ p_auth->psz_algorithm ? "\", " : "",
+ p_auth->psz_cnonce ? "cnonce=\"" : "",
+ p_auth->psz_cnonce ?: "",
+ p_auth->psz_cnonce ? "\", " : "",
+ p_auth->psz_opaque ? "opaque=\"" : "",
+ p_auth->psz_opaque ?: "",
+ p_auth->psz_opaque ? "\", " : "",
+ p_auth->psz_qop ? "qop=\"" : "",
+ p_auth->psz_qop ?: "",
+ p_auth->psz_qop ? "\", " : "",
+ p_auth->i_nonce ? "nc=\"" : "uglyhack=\"", /* Will be parsed as an unhandled extension */
+ p_auth->i_nonce,
+ p_auth->i_nonce ? "\"" : "\""
+ );
+
+ error:
+ free( psz_response );
+ free( psz_A1 );
+ free( psz_A2 );
+ free( psz_secret );
+ free( psz_data );
+ }
+ else
+ {
+ /* Basic Access Authentication */
+ char buf[strlen( psz_username ) + strlen( psz_password ) + 2];
+ char *b64;
+
+ snprintf( buf, sizeof( buf ), "%s:%s", psz_username, psz_password );
+ b64 = vlc_b64_encode( buf );
+
+ if( b64 != NULL )
+ {
+ net_Printf( VLC_OBJECT(p_access), p_sys->fd, pvs,
+ "%sAuthorization: Basic %s\r\n", psz_prefix, b64 );
+ free( b64 );
+ }
+ }
+}
+
+static void AuthReset( http_auth_t *p_auth )
+{
+ FREENULL( p_auth->psz_realm );
+ FREENULL( p_auth->psz_domain );
+ FREENULL( p_auth->psz_nonce );
+ FREENULL( p_auth->psz_opaque );
+ FREENULL( p_auth->psz_stale );
+ FREENULL( p_auth->psz_algorithm );
+ FREENULL( p_auth->psz_qop );
+ p_auth->i_nonce = 0;
+ FREENULL( p_auth->psz_cnonce );
+ FREENULL( p_auth->psz_A1 );
+}
projects / vlc / commitdiff