netsurf/atari/findfile.c

229 lines
5.4 KiB
C
Executable File

/*
* 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 <limits.h>
#include <unistd.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <curl/curl.h>
#include <windom.h>
#include "utils/log.h"
#include "utils/url.h"
#include "atari/findfile.h"
#include "atari/gui.h"
#include "atari/misc.h"
#include "atari/osspec.h"
char * local_file_to_url( const char * filename )
{
#define BACKSLASH 0x5C
char * url;
if( strlen(filename) <= 2){
return( NULL );
}
char * fname_local = alloca( strlen(filename)+1 );
char * start = (char*)fname_local;
strcpy( start, filename );
/* if path points to unified filesystem, skip that info: */
if( fname_local[1] == ':' && fname_local[0] == 'U' ){
start = &fname_local[2];
}
/* if we got something like "C:\folder\file.txt", handle that: */
if( start[1] == ':' ){
start[1] = (char)tolower(start[0]);
start++;
}
/* skip leading slash, already included in file scheme: */
if( start[0] == (char)BACKSLASH || start[0] == '/' ){
start++;
}
/* 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 );
return( url );
#undef BACKSLASH
}
/* convert an local path to an URL, memory for URL is allocated. */
char *path_to_url(const char *path_in)
{
#define BACKSLASH 0x5C
char * path_ptr=NULL;
char * path;
LOG(("path2url in: %s\n", path_in));
if (*path_in == '/') {
path_in++; /* file: path is are already absolute */
path = (char*)path_in;
} else {
path = path_ptr = (char*)malloc(PATH_MAX+1);
gemdos_realpath(path_in, path);
if( *path == '/' || *path == BACKSLASH ) {
path++;
}
if( sys_type() != SYS_MINT ){
if( path[1] == ':' ) {
path[1] = path[0];
path++;
}
}
}
int urllen = strlen(path) + FILE_SCHEME_PREFIX_LEN + 1;
char *url = malloc(urllen);
snprintf(url, urllen, "%s%s", FILE_SCHEME_PREFIX, path);
int i=0;
while( url[i] != 0 ){
if( url[i] == BACKSLASH ){
url[i] = '/';
}
i++;
}
if( path_ptr )
free( path_ptr );
LOG(("path2url out: %s\n", url));
return url;
#undef BACKSLASH
}
char *url_to_path(const char *url)
{
char *url_path = curl_unescape(url, 0);
char *path;
char abspath[PATH_MAX+1];
LOG(( "url2path in: %s\n", url ));
/* printf( "url2path in: %s\n", url_path ); */
/* return the absolute path including leading / */
/* todo: better check for filesystem? */
if( sys_type() & SYS_MINT ) {
/* it's ok to have relative paths with mint, just strip proto: */
path = strdup(url_path + (FILE_SCHEME_PREFIX_LEN -1));
} else {
/* do not include / within url_path */
char * tmp = url_path + (FILE_SCHEME_PREFIX_LEN-1);
gemdos_realpath( tmp, (char*)&abspath );
path = strdup( (char*)&abspath );
}
curl_free(url_path);
LOG(( "url2path out: %s\n", path ));
return path;
}
/**
* Locate a shared resource file by searching known places in order.
*
* \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
*
* Search order is: ./, NETSURF_GEM_RESPATH, ./$HOME/.netsurf/, $NETSURFRES/ (where NETSURFRES is an
* environment variable),
*/
#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];
LOG(("%s (def: %s)", filename, def ));
strcpy(t, NETSURF_GEM_RESPATH);
strcat(t, filename);
LOG(("checking %s", (char*)&t));
if (gemdos_realpath(t, buf) != NULL) {
if (access(buf, R_OK) == 0) {
return buf;
}
}
strcpy(t, "./");
strcat(t, filename);
LOG(("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);
LOG(("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);
LOG(("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);
LOG(("checking %s", (char*)&t));
if (gemdos_realpath(t, buf) == NULL) {
strcpy(buf, t);
}
} else {
LOG(("checking %s", (char*)def));
if (gemdos_realpath(def, buf) == NULL) {
strcpy(buf, def);
}
}
return buf;
}
/*
* Local Variables:
* c-basic-offset: 8
* End:
*/