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/* -*- Mode: ObjC; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <config_features.h>
#include "uunxapi.h"
#include "system.h"
#include <limits.h>
#include <rtl/ustring.hxx>
#include <osl/thread.h>
#ifdef ANDROID
#include <osl/detail/android-bootstrap.h>
#endif
inline rtl::OString OUStringToOString(const rtl_uString* s)
{
return rtl::OUStringToOString(rtl::OUString(const_cast<rtl_uString*>(s)),
osl_getThreadTextEncoding());
}
#if defined(MACOSX) && MAC_OS_X_VERSION_MIN_REQUIRED >= 1070 && HAVE_FEATURE_MACOSX_SANDBOX
static NSUserDefaults *userDefaults = NULL;
static void get_user_defaults()
{
userDefaults = [NSUserDefaults standardUserDefaults];
}
typedef struct {
NSURL *scopeURL;
NSAutoreleasePool *pool;
} accessFilePathState;
static accessFilePathState *
prepare_to_access_file_path( const char *cpFilePath )
{
static pthread_once_t once = PTHREAD_ONCE_INIT;
pthread_once(&once, &get_user_defaults);
NSURL *fileURL = nil;
NSData *data = nil;
BOOL stale;
accessFilePathState *state;
// If malloc() fails we are screwed anyway
state = (accessFilePathState*) malloc(sizeof(accessFilePathState));
state->pool = [[NSAutoreleasePool alloc] init];
state->scopeURL = nil;
if (userDefaults != nil)
fileURL = [NSURL fileURLWithPath:[NSString stringWithUTF8String:cpFilePath]];
if (fileURL != nil)
data = [userDefaults dataForKey:[@"bookmarkFor:" stringByAppendingString:[fileURL absoluteString]]];
if (data != nil)
state->scopeURL = [NSURL URLByResolvingBookmarkData:data
options:NSURLBookmarkResolutionWithSecurityScope
relativeToURL:nil
bookmarkDataIsStale:&stale
error:nil];
if (state->scopeURL != nil)
[state->scopeURL startAccessingSecurityScopedResource];
return state;
}
static void
done_accessing_file_path( const char * /*cpFilePath*/, accessFilePathState *state )
{
int saved_errno = errno;
if (state->scopeURL != nil)
[state->scopeURL stopAccessingSecurityScopedResource];
[state->pool release];
free(state);
errno = saved_errno;
}
#else
typedef void accessFilePathState;
#define prepare_to_access_file_path( cpFilePath ) NULL
#define done_accessing_file_path( cpFilePath, state ) ((void) cpFilePath, (void) state)
#endif
#ifdef MACOSX
/*
* Helper function for resolving Mac native alias files (not the same as unix alias files)
* and to return the resolved alias as rtl::OString
*/
static rtl::OString macxp_resolveAliasAndConvert(rtl::OString const & p)
{
sal_Char path[PATH_MAX];
if (p.getLength() < PATH_MAX)
{
strcpy(path, p.getStr());
macxp_resolveAlias(path, PATH_MAX);
return rtl::OString(path);
}
return p;
}
#endif /* MACOSX */
int access_u(const rtl_uString* pustrPath, int mode)
{
rtl::OString fn = OUStringToOString(pustrPath);
#ifdef ANDROID
if (fn == "/assets" || fn.startsWith("/assets/"))
{
struct stat stat;
if (lo_apk_lstat(fn.getStr(), &stat) == -1)
return -1;
if (mode & W_OK)
{
errno = EACCES;
return -1;
}
return 0;
}
#endif
#ifdef MACOSX
fn = macxp_resolveAliasAndConvert(fn);
#endif
accessFilePathState *state = prepare_to_access_file_path(fn.getStr());
int result = access(fn.getStr(), mode);
done_accessing_file_path(fn.getStr(), state);
return result;
}
sal_Bool realpath_u(const rtl_uString* pustrFileName, rtl_uString** ppustrResolvedName)
{
rtl::OString fn = OUStringToOString(pustrFileName);
#ifdef ANDROID
if (fn == "/assets" || fn.startsWith("/assets/"))
{
if (access_u(pustrFileName, F_OK) == -1)
return sal_False;
rtl_uString silly(*pustrFileName);
rtl_uString_assign(ppustrResolvedName, &silly);
return sal_True;
}
#endif
#ifdef MACOSX
fn = macxp_resolveAliasAndConvert(fn);
#endif
accessFilePathState *state = prepare_to_access_file_path(fn.getStr());
char rp[PATH_MAX];
bool bRet = realpath(fn.getStr(), rp);
done_accessing_file_path(fn.getStr(), state);
if (bRet)
{
rtl::OUString resolved = rtl::OStringToOUString(rtl::OString(static_cast<sal_Char*>(rp)),
osl_getThreadTextEncoding());
rtl_uString_assign(ppustrResolvedName, resolved.pData);
}
return bRet;
}
int stat_c(const char* cpPath, struct stat* buf)
{
#ifdef ANDROID
if (strncmp(cpPath, "/assets", sizeof("/assets")-1) == 0 &&
(cpPath[sizeof("/assets")-1] == '\0' ||
cpPath[sizeof("/assets")-1] == '/'))
return lo_apk_lstat(cpPath, buf);
#endif
accessFilePathState *state = prepare_to_access_file_path(cpPath);
int result = stat(cpPath, buf);
done_accessing_file_path(cpPath, state);
return result;
}
int lstat_c(const char* cpPath, struct stat* buf)
{
#ifdef ANDROID
if (strncmp(cpPath, "/assets", sizeof("/assets")-1) == 0 &&
(cpPath[sizeof("/assets")-1] == '\0' ||
cpPath[sizeof("/assets")-1] == '/'))
return lo_apk_lstat(cpPath, buf);
#endif
accessFilePathState *state = prepare_to_access_file_path(cpPath);
int result = lstat(cpPath, buf);
done_accessing_file_path(cpPath, state);
return result;
}
int lstat_u(const rtl_uString* pustrPath, struct stat* buf)
{
rtl::OString fn = OUStringToOString(pustrPath);
#ifdef MACOSX
fn = macxp_resolveAliasAndConvert(fn);
#endif
return lstat_c(fn.getStr(), buf);
}
int mkdir_u(const rtl_uString* path, mode_t mode)
{
rtl::OString fn = OUStringToOString(path);
accessFilePathState *state = prepare_to_access_file_path(fn.getStr());
int result = mkdir(OUStringToOString(path).getStr(), mode);
done_accessing_file_path(fn.getStr(), state);
return result;
}
int open_c(const char *cpPath, int oflag, int mode)
{
accessFilePathState *state = prepare_to_access_file_path(cpPath);
int result = open(cpPath, oflag, mode);
#if defined(MACOSX) && MAC_OS_X_VERSION_MIN_REQUIRED >= 1070 && HAVE_FEATURE_MACOSX_SANDBOX
if (result != -1 && (oflag & O_CREAT) && (oflag & O_EXCL))
{
// A new file was created. Check if it is outside the sandbox.
// (In that case it must be one the user selected as export or
// save destination in a file dialog, otherwise we wouldn't
// have been able to crete it.) Create and store a security
// scoped bookmark for it so that we can access the file in
// the future, too. (For the "Recent Files" functionality.)
const char *sandbox = [NSHomeDirectory() UTF8String];
if (!(strncmp(sandbox, cpPath, strlen(sandbox)) == 0 &&
cpPath[strlen(sandbox)] == '/'))
{
NSURL *url = [NSURL fileURLWithPath:[NSString stringWithUTF8String:cpPath]];
NSData *data = [url bookmarkDataWithOptions:NSURLBookmarkCreationWithSecurityScope
includingResourceValuesForKeys:nil
relativeToURL:nil
error:nil];
if (data != NULL)
{
[userDefaults setObject:data
forKey:[@"bookmarkFor:" stringByAppendingString:[url absoluteString]]];
}
}
}
#endif
done_accessing_file_path(cpPath, state);
return result;
}
int utime_c(const char *cpPath, struct utimbuf *times)
{
accessFilePathState *state = prepare_to_access_file_path(cpPath);
int result = utime(cpPath, times);
done_accessing_file_path(cpPath, state);
return result;
}
int ftruncate_with_name(int fd, sal_uInt64 uSize, rtl_String* path)
{
/* When sandboxed on OS X, ftruncate(), even if it takes an
* already open file descriptor which was retuned from an open()
* call already checked by the sandbox, still requires a security
* scope bookmark for the file to be active in case the file is
* one that the sandbox doesn't otherwise allow access to. Luckily
* LibreOffice usually calls ftruncate() through the helpful C++
* abstraction layer that keeps the pathname around.
*/
rtl::OString fn = rtl::OString(path);
#ifdef MACOSX
fn = macxp_resolveAliasAndConvert(fn);
#endif
accessFilePathState *state = prepare_to_access_file_path(fn.getStr());
int result = ftruncate(fd, uSize);
done_accessing_file_path(fn.getStr(), state);
return result;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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