findfile.c

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/*
 * Copyright 2010 Ole Loots <ole@monochrom.net>
 *
 * This file is part of NetSurf, http://www.netsurf-browser.org/
 *
 * NetSurf 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; version 2 of the License.
 *
 * NetSurf 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, see <http://www.gnu.org/licenses/>.
 */
 
#include <unistd.h>
 
#include "utils/log.h"
#include "utils/corestrings.h"
 
#include "atari/gemtk/gemtk.h"
#include "atari/findfile.h"
#include "atari/gui.h"
#include "atari/osspec.h"
 
char * local_file_to_url( const char * filename )
{
        #define BACKSLASH       0x5C
        char * url;
 
        NSLOG(netsurf, INFO, "in: %s", filename);
 
        if( strlen(filename) <= 2){
                return( NULL );
        }
 
        char * fname_local = malloc( strlen(filename)+1 );
        char * start = (char*)fname_local;
        strcpy( start, filename );
 
        /* convert backslashes: */
        for( unsigned int i=0; i<strlen(start); i++ ){
                if( start[i] == BACKSLASH ){
                        start[i] = '/';
                }
        }
 
        // TODO: make file path absolute if it isn't yet.
        url = malloc( strlen(start) + FILE_SCHEME_PREFIX_LEN + 1);
        strcpy(url, FILE_SCHEME_PREFIX );
        strcat(url, start );
 
        free(fname_local);
 
        NSLOG(netsurf, INFO, "out: %s", url);
 
        return( url );
        #undef BACKSLASH
}
 
 
/**
 * Locate a shared resource file by searching known places in order.
 * Search order is: ./, NETSURF_GEM_RESPATH, ./$HOME/.netsurf/, $NETSURFRES/
 * (where NETSURFRES is an environment variable)
 *
 * \param  buf      buffer to write to.  must be at least PATH_MAX chars
 * \param  filename file to look for
 * \param  def      default to return if file not found
 * \return buf
 *
 */
#ifndef NETSURF_GEM_RESPATH
        #define NETSURF_GEM_RESPATH "./res/"
#endif
 
char * atari_find_resource(char *buf, const char *filename, const char *def)
{
        char *cdir = NULL;
        char t[PATH_MAX];
        NSLOG(netsurf, INFO, "%s (def: %s)", filename, def);
        strcpy(t, NETSURF_GEM_RESPATH);
        strcat(t, filename);
        NSLOG(netsurf, INFO, "checking %s", (char *)&t);
        if (gemdos_realpath(t, buf) != NULL) {
                if (access(buf, R_OK) == 0) {
                        return buf;
                }
        }
        strcpy(t, "./");
        strcat(t, filename);
        NSLOG(netsurf, INFO, "checking %s", (char *)&t);
        if (gemdos_realpath(t, buf) != NULL) {
                if (access(buf, R_OK) == 0) {
                        return buf;
                }
        }
 
        cdir = getenv("HOME");
        if (cdir != NULL) {
                strcpy(t, cdir);
                strcat(t, "/.netsurf/");
                strcat(t, filename);
                NSLOG(netsurf, INFO, "checking %s", (char *)&t);
                if (gemdos_realpath(t, buf) != NULL) {
                        if (access(buf, R_OK) == 0)
                                return buf;
                }
        }
 
        cdir = getenv("NETSURFRES");
        if (cdir != NULL) {
                if (gemdos_realpath(cdir, buf) != NULL) {
                        strcat(buf, "/");
                        strcat(buf, filename);
                        NSLOG(netsurf, INFO, "checking %s", (char *)&t);
                        if (access(buf, R_OK) == 0)
                                return buf;
                }
        }
        if (def[0] == '~') {
                snprintf(t, PATH_MAX, "%s%s", getenv("HOME"), def + 1);
                NSLOG(netsurf, INFO, "checking %s", (char *)&t);
                if (gemdos_realpath(t, buf) == NULL) {
                        strcpy(buf, t);
                }
        } else {
                NSLOG(netsurf, INFO, "checking %s", (char *)def);
                if (gemdos_realpath(def, buf) == NULL) {
                        strcpy(buf, def);
                }
        }
 
        return buf;
}
 
/*
 * Local Variables:
 * c-basic-offset: 8
 * End:
 */