/** Removes "." and ".." from a path */
char *getCanonicalPath(const char *path){
char *prefix = NULL;
char *rest = NULL;
char *tmp = NULL;
size_t offset = 0;
char **src = NULL;
List *dst = NULL;
size_t ii = 0;
Buffer *buf = NULL;
char *result = NULL;
if (path != NULL && strlen(path) > 0) {
tmp = strxreplace(astrcpy(path), '\\', '/');
if (isDosPath(tmp) || isUncPath(tmp)) {
if (isDosPath(tmp)) {
prefix = getPathPart(tmp, PATH_DRIVE);
offset = 0;
}
else if (isUncPath(tmp)) {
prefix = getPathPart(tmp, PATH_HOST);
offset = 2;
}
rest = astrcpy(strchr(&tmp[offset], '/'));
}
else {
rest = astrcpy(tmp);
}
src = astrtok(rest, "/");
dst = new_List();
while (src[ii] != NULL) {
if (strxequals(src[ii], "..")) {
List_remove(dst, -1, false);
}
else if (!strxequals(src[ii], ".")) {
List_append(dst, src[ii]);
}
ii++;
}
buf = new_Buffer(0);
if (prefix != NULL) {
Buffer_appendString(buf, prefix);
}
for (ii = 0; ii < List_length(dst); ++ii) {
Buffer_appendString(buf, List_get(dst, ii));
if (ii != (List_length(dst) - 1)) {
Buffer_appendChar(buf, '/');
}
}
result = astrcpy(buf->data);
delete_Buffer(buf);
delete_List(dst, false);
astrtokfree(src);
mu_free(prefix);
mu_free(rest);
mu_free(tmp);
}
return result;
}
/** Joins two paths together, allowing for relative/absolute paths */
char *getCombinedPath(const char *path1, const char *path2) {
char *tmp1 = NULL;
char *tmp2 = NULL;
char *tmp = NULL;
Buffer *buf = NULL;
char *result = NULL;
char *final = NULL;
if (!strxnullorempty(path1) && !strxnullorempty(path2)) {
tmp1 = strxreplace(astrcpy(path1), '\\', '/');
tmp2 = strxreplace(astrcpy(path2), '\\', '/');
if (isDosPath(tmp2) || isUncPath(tmp2)) {
/* Path2 is a fully-qualified DOS/Windows path; return it */
result = astrcpy(tmp2);
}
else {
buf = new_Buffer(0);
if (tmp2[0] == '/') {
/* Path2 is an absolute path. If Path1 is a DOS/Windows or
** UNC path, prepend the drive letter or hostname; otherwise
** return it.
*/
if (isDosPath(tmp1)) {
tmp = getPathPart(tmp1, PATH_DRIVE);
Buffer_appendString(buf, tmp);
Buffer_appendString(buf, tmp2);
mu_free(tmp);
}
else if (isUncPath(tmp1)) {
tmp = getPathPart(tmp1, PATH_HOST);
Buffer_appendString(buf, "//");
Buffer_appendString(buf, tmp);
Buffer_appendString(buf, tmp2);
mu_free(tmp);
}
else {
Buffer_appendString(buf, tmp2);
}
}
else {
/* Simply concatenate the two paths */
Buffer_appendString(buf, tmp1);
if (tmp1[strlen(tmp1) - 1] != '/') {
Buffer_appendChar(buf, '/');
}
Buffer_appendString(buf, tmp2);
}
result = astrcpy(buf->data);
delete_Buffer(buf);
}
mu_free(tmp1);
mu_free(tmp2);
}
/* Remove any "." and ".." in the path */
final = getCanonicalPath(result);
/*!
\internal
*/
QString QFSFileEnginePrivate::longFileName(const QString &path)
{
if (path.startsWith(QLatin1String("\\\\.\\")))
return path;
QString absPath = QFileSystemEngine::nativeAbsoluteFilePath(path);
#if !defined(Q_OS_WINCE) && !defined(Q_OS_WINRT)
QString prefix = QLatin1String("\\\\?\\");
if (isUncPath(absPath)) {
prefix.append(QLatin1String("UNC\\")); // "\\\\?\\UNC\\"
absPath.remove(0, 2);
}
return prefix + absPath;
#else
return absPath;
#endif
}
/** Returns a part of a directory path */
char *getPathPart(const char *path, PathPart part) {
char *result = NULL;
char *tmp1 = NULL;
char *tmp2 = NULL;
size_t pos = 0;
if (path != NULL && strlen(path) > 0) {
tmp1 = strxreplace(astrcpy(path), '\\', '/');
switch(part){
case PATH_HOST:
if (isUncPath(tmp1)) {
tmp2 = &tmp1[2];
if (strxpos(tmp2, '/', &pos)) {
result = astrleft(tmp2, pos);
}
else {
result = astrcpy(tmp2);
}
}
else {
result = astrcpy("");
}
break;
case PATH_DRIVE:
if (isDosPath(tmp1)) {
result = astrleft(tmp1, 2);
}
else {
result = astrcpy("");
}
break;
case PATH_DIR:
if (isUncPath(tmp1) || isDosPath(tmp1)) {
tmp2 = strchr(&tmp1[2], '/');
}
else {
tmp2 = tmp1;
}
if (tmp2 != NULL) {
if (strxrpos(tmp2, '/', &pos)) {
if (pos == 0) {
result = astrcpy(tmp2);
}
else {
result = astrleft(tmp2, pos);
}
}
else {
result = astrcpy("");
}
}
else {
result = astrcpy("");
}
break;
case PATH_FILE:
case PATH_FILEONLY:
if ((tmp2 = strrchr(tmp1, '/')) != NULL) {
result = &tmp2[1];
}
else {
result = tmp1;
}
if (part == PATH_FILE) {
result = astrcpy(result);
}
else if (part == PATH_FILEONLY) {
/* Strip off file extension */
if (strxrpos(result, '.', &pos)) {
if(pos == 0) {
result = astrcpy(result);
}
else {
result = astrleft(result, pos);
}
}
else {
result = astrcpy(result);
}
}
break;
case PATH_EXT:
if ((tmp2 = strrchr(tmp1, '.')) != NULL) {
if (strchr(tmp2, '/') == NULL) {
result = astrcpy(&tmp2[1]);
}
else {
result = astrcpy("");
}
}
else {
result = astrcpy("");
}
break;
default:
result = astrcpy("");
break;
}
mu_free(tmp1);
}
return result;
}
