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Location: cpp/openttd-patchpack/source/src/fios.cpp - annotation
r17464:ec056ba9e669
18.7 KiB
text/x-c
(svn r22229) -Update from WebTranslator v3.0:
brazilian_portuguese - 3 changes by Tucalipe
slovak - 44 changes by micropro_cz
brazilian_portuguese - 3 changes by Tucalipe
slovak - 44 changes by micropro_cz
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r11278:28e3268b0f53 r11278:28e3268b0f53 r11278:28e3268b0f53 r11278:28e3268b0f53 r11278:28e3268b0f53 r11278:28e3268b0f53 | /* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD 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.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file fios.cpp
* This file contains functions for building file lists for the save/load dialogs.
*/
#include "stdafx.h"
#include "fios.h"
#include "fileio_func.h"
#include "tar_type.h"
#include "string_func.h"
#include <sys/stat.h>
#ifdef WIN32
# define access _taccess
#else
# include <unistd.h>
#endif /* WIN32 */
#include "table/strings.h"
/* Variables to display file lists */
SmallVector<FiosItem, 32> _fios_items;
static char *_fios_path;
SmallFiosItem _file_to_saveload;
SortingBits _savegame_sort_order = SORT_BY_DATE | SORT_DESCENDING;
/* OS-specific functions are taken from their respective files (win32/unix/os2 .c) */
extern bool FiosIsRoot(const char *path);
extern bool FiosIsValidFile(const char *path, const struct dirent *ent, struct stat *sb);
extern bool FiosIsHiddenFile(const struct dirent *ent);
extern void FiosGetDrives();
extern bool FiosGetDiskFreeSpace(const char *path, uint64 *tot);
/* get the name of an oldstyle savegame */
extern void GetOldSaveGameName(const char *file, char *title, const char *last);
/**
* Compare two FiosItem's. Used with sort when sorting the file list.
* @param da A pointer to the first FiosItem to compare.
* @param db A pointer to the second FiosItem to compare.
* @return -1, 0 or 1, depending on how the two items should be sorted.
*/
int CDECL CompareFiosItems(const FiosItem *da, const FiosItem *db)
{
int r = 0;
if ((_savegame_sort_order & SORT_BY_NAME) == 0 && da->mtime != db->mtime) {
r = da->mtime < db->mtime ? -1 : 1;
} else {
r = strcasecmp(da->title, db->title);
}
if (_savegame_sort_order & SORT_DESCENDING) r = -r;
return r;
}
/** Clear the list */
void FiosFreeSavegameList()
{
_fios_items.Clear();
_fios_items.Compact();
}
/**
* Get descriptive texts. Returns the path and free space
* left on the device
* @param path string describing the path
* @param total_free total free space in megabytes, optional (can be NULL)
* @return StringID describing the path (free space or failure)
*/
StringID FiosGetDescText(const char **path, uint64 *total_free)
{
*path = _fios_path;
return FiosGetDiskFreeSpace(*path, total_free) ? STR_SAVELOAD_BYTES_FREE : STR_ERROR_UNABLE_TO_READ_DRIVE;
}
/**
* Browse to a new path based on the passed \a item.
* @param *item #FiosItem object telling us what to do.
* @return A string if we have given a file as a target, otherwise \c NULL.
*/
const char *FiosBrowseTo(const FiosItem *item)
{
char *path = _fios_path;
switch (item->type) {
case FIOS_TYPE_DRIVE:
#if defined(WINCE)
snprintf(path, MAX_PATH, PATHSEP "");
#elif defined(WIN32) || defined(__OS2__)
snprintf(path, MAX_PATH, "%c:" PATHSEP, item->title[0]);
#endif
/* FALL THROUGH */
case FIOS_TYPE_INVALID:
break;
case FIOS_TYPE_PARENT: {
/* Check for possible NULL ptr (not required for UNIXes, but AmigaOS-alikes) */
char *s = strrchr(path, PATHSEPCHAR);
if (s != NULL && s != path) {
s[0] = '\0'; // Remove last path separator character, so we can go up one level.
}
s = strrchr(path, PATHSEPCHAR);
if (s != NULL) {
s[1] = '\0'; // go up a directory
#if defined(__MORPHOS__) || defined(__AMIGAOS__)
/* On MorphOS or AmigaOS paths look like: "Volume:directory/subdirectory" */
} else if ((s = strrchr(path, ':')) != NULL) {
s[1] = '\0';
#endif
}
break;
}
case FIOS_TYPE_DIR:
strcat(path, item->name);
strcat(path, PATHSEP);
break;
case FIOS_TYPE_DIRECT:
snprintf(path, MAX_PATH, "%s", item->name);
break;
case FIOS_TYPE_FILE:
case FIOS_TYPE_OLDFILE:
case FIOS_TYPE_SCENARIO:
case FIOS_TYPE_OLD_SCENARIO:
case FIOS_TYPE_PNG:
case FIOS_TYPE_BMP:
return item->name;
}
return NULL;
}
void FiosMakeSavegameName(char *buf, const char *name, size_t size)
{
const char *extension, *period;
extension = (_game_mode == GM_EDITOR) ? ".scn" : ".sav";
/* Don't append the extension if it is already there */
period = strrchr(name, '.');
if (period != NULL && strcasecmp(period, extension) == 0) extension = "";
#if defined(__MORPHOS__) || defined(__AMIGAOS__)
if (_fios_path != NULL) {
unsigned char sepchar = _fios_path[(strlen(_fios_path) - 1)];
if (sepchar != ':' && sepchar != '/') {
snprintf(buf, size, "%s" PATHSEP "%s%s", _fios_path, name, extension);
} else {
snprintf(buf, size, "%s%s%s", _fios_path, name, extension);
}
} else {
snprintf(buf, size, "%s%s", name, extension);
}
#else
snprintf(buf, size, "%s" PATHSEP "%s%s", _fios_path, name, extension);
#endif
}
bool FiosDelete(const char *name)
{
char filename[512];
FiosMakeSavegameName(filename, name, lengthof(filename));
return unlink(filename) == 0;
}
bool FileExists(const char *filename)
{
#if defined(WINCE)
/* There is always one platform that doesn't support basic commands... */
HANDLE hand = CreateFile(OTTD2FS(filename), 0, 0, NULL, OPEN_EXISTING, 0, NULL);
if (hand == INVALID_HANDLE_VALUE) return 1;
CloseHandle(hand);
return 0;
#else
return access(OTTD2FS(filename), 0) == 0;
#endif
}
typedef FiosType fios_getlist_callback_proc(SaveLoadDialogMode mode, const char *filename, const char *ext, char *title, const char *last);
/**
* Scanner to scan for a particular type of FIOS file.
*/
class FiosFileScanner : public FileScanner {
SaveLoadDialogMode mode; ///< The mode we want to search for
fios_getlist_callback_proc *callback_proc; ///< Callback to check whether the file may be added
public:
/**
* Create the scanner
* @param mode The mode we are in. Some modes don't allow 'parent'.
* @param callback_proc The function that is called where you need to do the filtering.
*/
FiosFileScanner(SaveLoadDialogMode mode, fios_getlist_callback_proc *callback_proc) :
mode(mode),
callback_proc(callback_proc)
{}
/* virtual */ bool AddFile(const char *filename, size_t basepath_length);
};
/**
* Try to add a fios item set with the given filename.
* @param filename the full path to the file to read
* @param basepath_length amount of characters to chop of before to get a relative filename
* @return true if the file is added.
*/
bool FiosFileScanner::AddFile(const char *filename, size_t basepath_length)
{
const char *ext = strrchr(filename, '.');
if (ext == NULL) return false;
char fios_title[64];
fios_title[0] = '\0'; // reset the title;
FiosType type = this->callback_proc(this->mode, filename, ext, fios_title, lastof(fios_title));
if (type == FIOS_TYPE_INVALID) return false;
for (const FiosItem *fios = _fios_items.Begin(); fios != _fios_items.End(); fios++) {
if (strcmp(fios->name, filename) == 0) return false;
}
FiosItem *fios = _fios_items.Append();
#ifdef WIN32
struct _stat sb;
if (_tstat(OTTD2FS(filename), &sb) == 0) {
#else
struct stat sb;
if (stat(filename, &sb) == 0) {
#endif
fios->mtime = sb.st_mtime;
} else {
fios->mtime = 0;
}
fios->type = type;
strecpy(fios->name, filename, lastof(fios->name));
/* If the file doesn't have a title, use its filename */
const char *t = fios_title;
if (StrEmpty(fios_title)) {
t = strrchr(filename, PATHSEPCHAR);
t = (t == NULL) ? filename : (t + 1);
}
strecpy(fios->title, t, lastof(fios->title));
str_validate(fios->title, lastof(fios->title));
return true;
}
/**
* Fill the list of the files in a directory, according to some arbitrary rule.
* @param mode The mode we are in. Some modes don't allow 'parent'.
* @param callback_proc The function that is called where you need to do the filtering.
* @param subdir The directory from where to start (global) searching.
*/
static void FiosGetFileList(SaveLoadDialogMode mode, fios_getlist_callback_proc *callback_proc, Subdirectory subdir)
{
struct stat sb;
struct dirent *dirent;
DIR *dir;
FiosItem *fios;
int sort_start;
char d_name[sizeof(fios->name)];
_fios_items.Clear();
/* A parent directory link exists if we are not in the root directory */
if (!FiosIsRoot(_fios_path)) {
fios = _fios_items.Append();
fios->type = FIOS_TYPE_PARENT;
fios->mtime = 0;
strecpy(fios->name, "..", lastof(fios->name));
strecpy(fios->title, ".. (Parent directory)", lastof(fios->title));
}
/* Show subdirectories */
if ((dir = ttd_opendir(_fios_path)) != NULL) {
while ((dirent = readdir(dir)) != NULL) {
strecpy(d_name, FS2OTTD(dirent->d_name), lastof(d_name));
/* found file must be directory, but not '.' or '..' */
if (FiosIsValidFile(_fios_path, dirent, &sb) && S_ISDIR(sb.st_mode) &&
(!FiosIsHiddenFile(dirent) || strncasecmp(d_name, PERSONAL_DIR, strlen(d_name)) == 0) &&
strcmp(d_name, ".") != 0 && strcmp(d_name, "..") != 0) {
fios = _fios_items.Append();
fios->type = FIOS_TYPE_DIR;
fios->mtime = 0;
strecpy(fios->name, d_name, lastof(fios->name));
snprintf(fios->title, lengthof(fios->title), "%s" PATHSEP " (Directory)", d_name);
str_validate(fios->title, lastof(fios->title));
}
}
closedir(dir);
}
/* Sort the subdirs always by name, ascending, remember user-sorting order */
{
SortingBits order = _savegame_sort_order;
_savegame_sort_order = SORT_BY_NAME | SORT_ASCENDING;
QSortT(_fios_items.Begin(), _fios_items.Length(), CompareFiosItems);
_savegame_sort_order = order;
}
/* This is where to start sorting for the filenames */
sort_start = _fios_items.Length();
/* Show files */
FiosFileScanner scanner(mode, callback_proc);
if (subdir == NO_DIRECTORY) {
scanner.Scan(NULL, _fios_path, false);
} else {
scanner.Scan(NULL, subdir, true, true);
}
QSortT(_fios_items.Get(sort_start), _fios_items.Length() - sort_start, CompareFiosItems);
/* Show drives */
FiosGetDrives();
_fios_items.Compact();
}
/**
* Get the title of a file, which (if exists) is stored in a file named
* the same as the data file but with '.title' added to it.
* @param file filename to get the title for
* @param title the title buffer to fill
* @param last the last element in the title buffer
*/
static void GetFileTitle(const char *file, char *title, const char *last)
{
char buf[MAX_PATH];
strecpy(buf, file, lastof(buf));
strecat(buf, ".title", lastof(buf));
FILE *f = FioFOpenFile(buf, "r");
if (f == NULL) return;
size_t read = fread(title, 1, last - title, f);
assert(title + read <= last);
title[read] = '\0';
str_validate(title, last);
FioFCloseFile(f);
}
/**
* Callback for FiosGetFileList. It tells if a file is a savegame or not.
* @param mode Save/load mode.
* @param file Name of the file to check.
* @param ext A pointer to the extension identifier inside file
* @param title Buffer if a callback wants to lookup the title of the file; NULL to skip the lookup
* @param last Last available byte in buffer (to prevent buffer overflows); not used when title == NULL
* @return a FIOS_TYPE_* type of the found file, FIOS_TYPE_INVALID if not a savegame
* @see FiosGetFileList
* @see FiosGetSavegameList
*/
FiosType FiosGetSavegameListCallback(SaveLoadDialogMode mode, const char *file, const char *ext, char *title, const char *last)
{
/* Show savegame files
* .SAV OpenTTD saved game
* .SS1 Transport Tycoon Deluxe preset game
* .SV1 Transport Tycoon Deluxe (Patch) saved game
* .SV2 Transport Tycoon Deluxe (Patch) saved 2-player game */
if (strcasecmp(ext, ".sav") == 0) {
GetFileTitle(file, title, last);
return FIOS_TYPE_FILE;
}
if (mode == SLD_LOAD_GAME || mode == SLD_LOAD_SCENARIO) {
if (strcasecmp(ext, ".ss1") == 0 || strcasecmp(ext, ".sv1") == 0 ||
strcasecmp(ext, ".sv2") == 0) {
if (title != NULL) GetOldSaveGameName(file, title, last);
return FIOS_TYPE_OLDFILE;
}
}
return FIOS_TYPE_INVALID;
}
/**
* Get a list of savegames.
* @param mode Save/load mode.
* @return A pointer to an array of FiosItem representing all the files to be shown in the save/load dialog.
* @see FiosGetFileList
*/
void FiosGetSavegameList(SaveLoadDialogMode mode)
{
static char *fios_save_path = NULL;
if (fios_save_path == NULL) {
fios_save_path = MallocT<char>(MAX_PATH);
FioGetDirectory(fios_save_path, MAX_PATH, SAVE_DIR);
}
_fios_path = fios_save_path;
FiosGetFileList(mode, &FiosGetSavegameListCallback, NO_DIRECTORY);
}
/**
* Callback for FiosGetFileList. It tells if a file is a scenario or not.
* @param mode Save/load mode.
* @param file Name of the file to check.
* @param ext A pointer to the extension identifier inside file
* @param title Buffer if a callback wants to lookup the title of the file
* @param last Last available byte in buffer (to prevent buffer overflows)
* @return a FIOS_TYPE_* type of the found file, FIOS_TYPE_INVALID if not a scenario
* @see FiosGetFileList
* @see FiosGetScenarioList
*/
static FiosType FiosGetScenarioListCallback(SaveLoadDialogMode mode, const char *file, const char *ext, char *title, const char *last)
{
/* Show scenario files
* .SCN OpenTTD style scenario file
* .SV0 Transport Tycoon Deluxe (Patch) scenario
* .SS0 Transport Tycoon Deluxe preset scenario */
if (strcasecmp(ext, ".scn") == 0) {
GetFileTitle(file, title, last);
return FIOS_TYPE_SCENARIO;
}
if (mode == SLD_LOAD_GAME || mode == SLD_LOAD_SCENARIO) {
if (strcasecmp(ext, ".sv0") == 0 || strcasecmp(ext, ".ss0") == 0 ) {
GetOldSaveGameName(file, title, last);
return FIOS_TYPE_OLD_SCENARIO;
}
}
return FIOS_TYPE_INVALID;
}
/**
* Get a list of scenarios.
* @param mode Save/load mode.
* @return A pointer to an array of FiosItem representing all the files to be shown in the save/load dialog.
* @see FiosGetFileList
*/
void FiosGetScenarioList(SaveLoadDialogMode mode)
{
static char *fios_scn_path = NULL;
/* Copy the default path on first run or on 'New Game' */
if (fios_scn_path == NULL) {
fios_scn_path = MallocT<char>(MAX_PATH);
FioGetDirectory(fios_scn_path, MAX_PATH, SCENARIO_DIR);
}
_fios_path = fios_scn_path;
char base_path[MAX_PATH];
FioGetDirectory(base_path, sizeof(base_path), SCENARIO_DIR);
FiosGetFileList(mode, &FiosGetScenarioListCallback, (mode == SLD_LOAD_SCENARIO && strcmp(base_path, _fios_path) == 0) ? SCENARIO_DIR : NO_DIRECTORY);
}
static FiosType FiosGetHeightmapListCallback(SaveLoadDialogMode mode, const char *file, const char *ext, char *title, const char *last)
{
/* Show heightmap files
* .PNG PNG Based heightmap files
* .BMP BMP Based heightmap files
*/
FiosType type = FIOS_TYPE_INVALID;
#ifdef WITH_PNG
if (strcasecmp(ext, ".png") == 0) type = FIOS_TYPE_PNG;
#endif /* WITH_PNG */
if (strcasecmp(ext, ".bmp") == 0) type = FIOS_TYPE_BMP;
if (type == FIOS_TYPE_INVALID) return FIOS_TYPE_INVALID;
TarFileList::iterator it = _tar_filelist.find(file);
if (it != _tar_filelist.end()) {
/* If the file is in a tar and that tar is not in a heightmap
* directory we are for sure not supposed to see it.
* Examples of this are pngs part of documentation within
* collections of NewGRFs or 32 bpp graphics replacement PNGs.
*/
bool match = false;
Searchpath sp;
FOR_ALL_SEARCHPATHS(sp) {
char buf[MAX_PATH];
FioAppendDirectory(buf, sizeof(buf), sp, HEIGHTMAP_DIR);
if (strncmp(buf, it->second.tar_filename, strlen(buf)) == 0) {
match = true;
break;
}
}
if (!match) return FIOS_TYPE_INVALID;
}
GetFileTitle(file, title, last);
return type;
}
/* Get a list of Heightmaps */
void FiosGetHeightmapList(SaveLoadDialogMode mode)
{
static char *fios_hmap_path = NULL;
if (fios_hmap_path == NULL) {
fios_hmap_path = MallocT<char>(MAX_PATH);
FioGetDirectory(fios_hmap_path, MAX_PATH, HEIGHTMAP_DIR);
}
_fios_path = fios_hmap_path;
char base_path[MAX_PATH];
FioGetDirectory(base_path, sizeof(base_path), HEIGHTMAP_DIR);
FiosGetFileList(mode, &FiosGetHeightmapListCallback, strcmp(base_path, _fios_path) == 0 ? HEIGHTMAP_DIR : NO_DIRECTORY);
}
#if defined(ENABLE_NETWORK)
#include "network/network_content.h"
#include "3rdparty/md5/md5.h"
/** Basic data to distinguish a scenario. Used in the server list window */
struct ScenarioIdentifier {
uint32 scenid; ///< ID for the scenario (generated by content)
uint8 md5sum[16]; ///< MD5 checksum of file
bool operator == (const ScenarioIdentifier &other) const
{
return this->scenid == other.scenid &&
memcmp(this->md5sum, other.md5sum, sizeof(this->md5sum)) == 0;
}
bool operator != (const ScenarioIdentifier &other) const
{
return !(*this == other);
}
};
/**
* Scanner to find the unique IDs of scenarios
*/
class ScenarioScanner : protected FileScanner, public SmallVector<ScenarioIdentifier, 8> {
bool scanned; ///< Whether we've already scanned
public:
/** Initialise */
ScenarioScanner() : scanned(false) {}
/**
* Scan, but only if it's needed.
* @param rescan whether to force scanning even when it's not necessary
*/
void Scan(bool rescan)
{
if (this->scanned && !rescan) return;
this->FileScanner::Scan(".id", SCENARIO_DIR, true, true);
this->scanned = true;
}
/* virtual */ bool AddFile(const char *filename, size_t basepath_length)
{
FILE *f = FioFOpenFile(filename, "r");
if (f == NULL) return false;
ScenarioIdentifier id;
int fret = fscanf(f, "%i", &id.scenid);
FioFCloseFile(f);
if (fret != 1) return false;
Md5 checksum;
uint8 buffer[1024];
char basename[MAX_PATH]; ///< \a filename without the extension.
size_t len, size;
/* open the scenario file, but first get the name.
* This is safe as we check on extension which
* must always exist. */
strecpy(basename, filename, lastof(basename));
*strrchr(basename, '.') = '\0';
f = FioFOpenFile(basename, "rb", SCENARIO_DIR, &size);
if (f == NULL) return false;
/* calculate md5sum */
while ((len = fread(buffer, 1, (size > sizeof(buffer)) ? sizeof(buffer) : size, f)) != 0 && size != 0) {
size -= len;
checksum.Append(buffer, len);
}
checksum.Finish(id.md5sum);
FioFCloseFile(f);
this->Include(id);
return true;
}
};
/** Scanner for scenarios */
static ScenarioScanner _scanner;
/**
* Check whether we've got a given scenario based on its unique ID.
* @param ci the content info to compare it to
* @param md5sum whether to look at the md5sum or the id
* @return true if we've got the scenario
*/
bool HasScenario(const ContentInfo *ci, bool md5sum)
{
_scanner.Scan(false);
for (ScenarioIdentifier *id = _scanner.Begin(); id != _scanner.End(); id++) {
if (md5sum ?
(memcmp(id->md5sum, ci->md5sum, sizeof(id->md5sum)) == 0) :
(id->scenid == ci->unique_id)) {
return true;
}
}
return false;
}
/**
* Force a (re)scan of the scenarios.
*/
void ScanScenarios()
{
_scanner.Scan(true);
}
#endif /* ENABLE_NETWORK */
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