294 lines
7.2 KiB
C
294 lines
7.2 KiB
C
/*
|
|
* Copyright 2014 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 <stdarg.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
|
|
#include "utils/utils.h"
|
|
#include "utils/corestrings.h"
|
|
#include "utils/url.h"
|
|
#include "utils/nsurl.h"
|
|
#include "utils/file.h"
|
|
|
|
/**
|
|
* \file
|
|
* Atari file handling callbacks.
|
|
*
|
|
* Most of this code was taken from windows/gui.c
|
|
*/
|
|
|
|
/**
|
|
* Generate a GEMDOS path from one or more component elemnts.
|
|
*
|
|
* If a string is allocated it must be freed by the caller.
|
|
*
|
|
* @param[in,out] str pointer to string pointer if this is NULL enough
|
|
* storage will be allocated for the complete path.
|
|
* @param[in,out] size The size of the space available if \a str not
|
|
* NULL on input and if not NULL set to the total
|
|
* output length on output.
|
|
* @param[in] nelm The number of elements.
|
|
* @param[in] ... The elements of the path as string pointers.
|
|
* @return NSERROR_OK and the complete path is written to str
|
|
* or error code on faliure.
|
|
*/
|
|
static nserror atari_mkpath(char **str, size_t *size, size_t nelm, va_list ap)
|
|
{
|
|
return vsnstrjoin(str, size, '\\', nelm, ap);
|
|
}
|
|
|
|
/**
|
|
* Get the basename of a file using GEMDOS path handling.
|
|
*
|
|
* This gets the last element of a path and returns it.
|
|
*
|
|
* @param[in] path The path to extract the name from.
|
|
* @param[in,out] str Pointer to string pointer if this is NULL enough
|
|
* storage will be allocated for the path element.
|
|
* @param[in,out] size The size of the space available if \a
|
|
* str not NULL on input and set to the total
|
|
* output length on output.
|
|
* @return NSERROR_OK and the complete path is written to str
|
|
* or error code on faliure.
|
|
*/
|
|
static nserror atari_basename(const char *path, char **str, size_t *size)
|
|
{
|
|
const char *leafname;
|
|
char *fname;
|
|
|
|
if (path == NULL) {
|
|
return NSERROR_BAD_PARAMETER;
|
|
}
|
|
|
|
leafname = strrchr(path, '\\');
|
|
if (!leafname) {
|
|
leafname = path;
|
|
} else {
|
|
leafname += 1;
|
|
}
|
|
|
|
fname = strdup(leafname);
|
|
if (fname == NULL) {
|
|
return NSERROR_NOMEM;
|
|
}
|
|
|
|
*str = fname;
|
|
if (size != NULL) {
|
|
*size = strlen(fname);
|
|
}
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
/**
|
|
* Create a path from a nsurl using GEMDOS file handling.
|
|
*
|
|
* @param[in] url The url to encode.
|
|
* @param[out] path_out A string containing the result path which should
|
|
* be freed by the caller.
|
|
* @return NSERROR_OK and the path is written to \a path or error code
|
|
* on faliure.
|
|
*/
|
|
static nserror atari_nsurl_to_path(struct nsurl *url, char **path_out)
|
|
{
|
|
lwc_string *urlpath;
|
|
char *path;
|
|
bool match;
|
|
lwc_string *scheme;
|
|
nserror res;
|
|
|
|
if ((url == NULL) || (path_out == NULL)) {
|
|
return NSERROR_BAD_PARAMETER;
|
|
}
|
|
|
|
scheme = nsurl_get_component(url, NSURL_SCHEME);
|
|
|
|
if (lwc_string_caseless_isequal(scheme, corestring_lwc_file,
|
|
&match) != lwc_error_ok)
|
|
{
|
|
return NSERROR_BAD_PARAMETER;
|
|
}
|
|
lwc_string_unref(scheme);
|
|
if (match == false) {
|
|
return NSERROR_BAD_PARAMETER;
|
|
}
|
|
|
|
urlpath = nsurl_get_component(url, NSURL_PATH);
|
|
if (urlpath == NULL) {
|
|
return NSERROR_BAD_PARAMETER;
|
|
}
|
|
|
|
res = url_unescape(lwc_string_data(urlpath), &path);
|
|
lwc_string_unref(urlpath);
|
|
if (res != NSERROR_OK) {
|
|
return res;
|
|
}
|
|
|
|
/* if there is a drive: prefix treat path as DOS filename */
|
|
if ((path[2] == ':') || (path[2] == '|')) {
|
|
|
|
/* move the string down to remove leading / note the
|
|
* strlen is *not* copying too much data as we are
|
|
* moving the null too!
|
|
*/
|
|
memmove(path, path + 1, strlen(path));
|
|
}
|
|
/* if the path does not have a drive letter we return the
|
|
* complete path.
|
|
*/
|
|
/** @todo Need to check returning the unaltered path in this
|
|
* case is correct
|
|
*/
|
|
|
|
*path_out = path;
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
/**
|
|
* Create a nsurl from a path using GEMDOS file handling.
|
|
*
|
|
* Perform the necessary operations on a path to generate a nsurl.
|
|
*
|
|
* @param[in] path The path to convert.
|
|
* @param[out] url_out pointer to recive the nsurl, The returned url
|
|
* should be unreferenced by the caller.
|
|
* @return NSERROR_OK and the url is placed in \a url or error code on
|
|
* faliure.
|
|
*/
|
|
static nserror atari_path_to_nsurl(const char *path, struct nsurl **url_out)
|
|
{
|
|
nserror ret;
|
|
int urllen;
|
|
char *urlstr;
|
|
char *escpath; /* escaped version of the path */
|
|
char *escpaths;
|
|
|
|
if ((path == NULL) || (url_out == NULL) || (*path == 0)) {
|
|
return NSERROR_BAD_PARAMETER;
|
|
}
|
|
|
|
/* escape the path so it can be placed in a url */
|
|
ret = url_escape(path, 0, false, "/", &escpath);
|
|
if (ret != NSERROR_OK) {
|
|
return ret;
|
|
}
|
|
/* remove unecessary / as file: paths are already absolute */
|
|
escpaths = escpath;
|
|
while (*escpaths == '/') {
|
|
escpaths++;
|
|
}
|
|
|
|
/* build url as a string for nsurl constructor */
|
|
urllen = strlen(escpaths) + FILE_SCHEME_PREFIX_LEN + 1;
|
|
urlstr = malloc(urllen);
|
|
if (urlstr == NULL) {
|
|
free(escpath);
|
|
return NSERROR_NOMEM;
|
|
}
|
|
|
|
snprintf(urlstr, urllen, "%s%s", FILE_SCHEME_PREFIX, escpaths);
|
|
free(escpath);
|
|
|
|
ret = nsurl_create(urlstr, url_out);
|
|
free(urlstr);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Ensure that all directory elements needed to store a filename exist.
|
|
*
|
|
* @param fname The filename to ensure the path to exists.
|
|
* @return NSERROR_OK on success or error code on failure.
|
|
*/
|
|
static nserror atari_mkdir_all(const char *fname)
|
|
{
|
|
char *dname;
|
|
char *sep;
|
|
struct stat sb;
|
|
|
|
dname = strdup(fname);
|
|
|
|
sep = strrchr(dname, '/');
|
|
if (sep == NULL) {
|
|
/* no directory separator path is just filename so its ok */
|
|
free(dname);
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
*sep = 0; /* null terminate directory path */
|
|
|
|
if (stat(dname, &sb) == 0) {
|
|
free(dname);
|
|
if (S_ISDIR(sb.st_mode)) {
|
|
/* path to file exists and is a directory */
|
|
return NSERROR_OK;
|
|
}
|
|
return NSERROR_NOT_DIRECTORY;
|
|
}
|
|
*sep = '/'; /* restore separator */
|
|
|
|
sep = dname;
|
|
while (*sep == '/') {
|
|
sep++;
|
|
}
|
|
while ((sep = strchr(sep, '/')) != NULL) {
|
|
*sep = 0;
|
|
if (stat(dname, &sb) != 0) {
|
|
if (nsmkdir(dname, S_IRWXU) != 0) {
|
|
/* could not create path element */
|
|
free(dname);
|
|
return NSERROR_NOT_FOUND;
|
|
}
|
|
} else {
|
|
if (! S_ISDIR(sb.st_mode)) {
|
|
/* path element not a directory */
|
|
free(dname);
|
|
return NSERROR_NOT_DIRECTORY;
|
|
}
|
|
}
|
|
*sep = '/'; /* restore separator */
|
|
/* skip directory separators */
|
|
while (*sep == '/') {
|
|
sep++;
|
|
}
|
|
}
|
|
|
|
free(dname);
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/* atari file handling table */
|
|
static struct gui_file_table file_table = {
|
|
.mkpath = atari_mkpath,
|
|
.basename = atari_basename,
|
|
.nsurl_to_path = atari_nsurl_to_path,
|
|
.path_to_nsurl = atari_path_to_nsurl,
|
|
.mkdir_all = atari_mkdir_all,
|
|
};
|
|
|
|
struct gui_file_table *atari_file_table = &file_table;
|
|
|
|
|