/***************************************************************************** * vlc_url.h: URL related macros ***************************************************************************** * Copyright (C) 2002-2006 the VideoLAN team * $Id: 7cedd5b8b0156cbf9211d215b7ff4cd7b0637661 $ * * Authors: Christophe Massiot <massiot@via.ecp.fr> *          Rémi Denis-Courmont <rem # videolan.org> * * This program 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. * * This program 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 this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/#ifndef VLC_URL_H# define VLC_URL_H/** * \file * This file defines functions for manipulating URL in vlc */struct vlc_url_t{    char *psz_protocol;    char *psz_username;    char *psz_password;    char *psz_host;    int  i_port;    char *psz_path;    char *psz_option;    char *psz_buffer; /* to be freed */};VLC_EXPORT( char *, unescape_URI_duplicate, ( const char *psz ) );VLC_EXPORT( void, unescape_URI, ( char *psz ) );VLC_EXPORT( char *, decode_URI_duplicate, ( const char *psz ) );VLC_EXPORT( void, decode_URI, ( char *psz ) );VLC_EXPORT( char *, encode_URI_component, ( const char *psz ) );/***************************************************************************** * vlc_UrlParse: ***************************************************************************** * option : if != 0 then path is split at this char * * format [protocol://[login[:password]@]][host[:port]]/path[OPTIONoption] *****************************************************************************/static inline void vlc_UrlParse( vlc_url_t *url, const char *psz_url,                                 char option ){    char *psz_dup;    char *psz_parse;    char *p;    char *p2;    url->psz_protocol = NULL;    url->psz_username = NULL;    url->psz_password = NULL;    url->psz_host     = NULL;    url->i_port       = 0;    url->psz_path     = NULL;    url->psz_option   = NULL;    if( psz_url == NULL )    {        url->psz_buffer = NULL;        return;    }    url->psz_buffer = psz_parse = psz_dup = strdup( psz_url );    /* Search a valid protocol */    p  = strstr( psz_parse, ":/" );    if( p != NULL )    {        char *p2;        for( p2 = psz_parse; p2 < p; p2++ )        {#define I(i,a,b) ( (a) <= (i) && (i) <= (b) )            if( !I(*p2, 'a', 'z' ) && !I(*p2, 'A', 'Z') && !I(*p2, '0', '9') && *p2 != '+' && *p2 != '-' && *p2 != '.' )            {                p = NULL;                break;            }#undef I        }    }    if( p != NULL )    {        /* we have a protocol */        /* skip :// */        *p++ = '\0';        if( p[1] == '/' )            p += 2;        url->psz_protocol = psz_parse;        psz_parse = p;    }    p = strchr( psz_parse, '@' );    p2 = strchr( psz_parse, '/' );    if( p != NULL && ( p2 != NULL ? p < p2 : 1 ) )    {        /* We have a login */        url->psz_username = psz_parse;        *p++ = '\0';        psz_parse = strchr( psz_parse, ':' );        if( psz_parse != NULL )        {            /* We have a password */            *psz_parse++ = '\0';            url->psz_password = psz_parse;            decode_URI( url->psz_password );        }        decode_URI( url->psz_username );        psz_parse = p;    }    p = strchr( psz_parse, '/' );    if( !p || psz_parse < p )    {        char *p2;        /* We have a host[:port] */        url->psz_host = strdup( psz_parse );        if( p )        {            url->psz_host[p - psz_parse] = '\0';        }        if( *url->psz_host == '[' )        {            /* Ipv6 address */            p2 = strchr( url->psz_host, ']' );            if( p2 )            {                p2 = strchr( p2, ':' );            }        }        else        {            p2 = strchr( url->psz_host, ':' );        }        if( p2 )        {            *p2++ = '\0';            url->i_port = atoi( p2 );        }    }    psz_parse = p;    /* Now parse psz_path and psz_option */    if( psz_parse )    {        url->psz_path = psz_parse;        if( option != '\0' )        {            p = strchr( url->psz_path, option );            if( p )            {                *p++ = '\0';                url->psz_option = p;            }        }    }}/***************************************************************************** * vlc_UrlClean: *****************************************************************************/static inline void vlc_UrlClean( vlc_url_t *url ){    free( url->psz_buffer );    free( url->psz_host );    url->psz_protocol = NULL;    url->psz_username = NULL;    url->psz_password = NULL;    url->psz_host     = NULL;    url->i_port       = 0;    url->psz_path     = NULL;    url->psz_option   = NULL;    url->psz_buffer   = NULL;}static inline char *vlc_UrlEncode( const char *psz_url ){    /* FIXME: do not encode / : ? and & _when_ not needed */    return encode_URI_component( psz_url );}#include <ctype.h>/** Check whether a given string is not a valid URL and must hence be *  encoded */static inline int vlc_UrlIsNotEncoded( const char *psz_url ){    const char *ptr;    for( ptr = psz_url; *ptr; ptr++ )    {        char c = *ptr;        if( c == '%' )        {            if( !isxdigit( ptr[1] ) || !isxdigit( ptr[2] ) )                return 1; /* not encoded */            ptr += 2;        }        else        if(  ( (unsigned char)( c - 'a' ) < 26 )          || ( (unsigned char)( c - 'A' ) < 26 )          || ( (unsigned char)( c - '0' ) < 10 )          || ( strchr( "-_.", c ) != NULL ) )            return 1;    }    return 0; /* looks fine - but maybe it is not encoded */}#endif