Files
foobar2000-sdk/foobar2000/helpers/create_directory_helper.cpp
2021-12-14 00:28:25 -07:00

195 lines
6.3 KiB
C++

#include "StdAfx.h"
#include "create_directory_helper.h"
#include <pfc/pathUtils.h>
namespace create_directory_helper
{
static void create_path_internal(const char * p_path,t_size p_base,abort_callback & p_abort) {
pfc::string8_fastalloc temp;
for(t_size walk = p_base; p_path[walk]; walk++) {
if (p_path[walk] == '\\') {
temp.set_string(p_path,walk);
try {filesystem::g_create_directory(temp.get_ptr(),p_abort);} catch(exception_io_already_exists) {}
}
}
}
static bool is_valid_netpath_char(char p_char) {
return pfc::char_is_ascii_alphanumeric(p_char) || p_char == '_' || p_char == '-' || p_char == '.';
}
static bool test_localpath(const char * p_path) {
if (pfc::strcmp_partial(p_path,"file://") == 0) p_path += strlen("file://");
return pfc::char_is_ascii_alpha(p_path[0]) &&
p_path[1] == ':' &&
p_path[2] == '\\';
}
static bool test_netpath(const char * p_path) {
if (pfc::strcmp_partial(p_path,"file://") == 0) p_path += strlen("file://");
if (*p_path != '\\') return false;
p_path++;
if (*p_path != '\\') return false;
p_path++;
if (!is_valid_netpath_char(*p_path)) return false;
p_path++;
while(is_valid_netpath_char(*p_path)) p_path++;
if (*p_path != '\\') return false;
return true;
}
void create_path(const char * p_path,abort_callback & p_abort) {
if (test_localpath(p_path)) {
t_size walk = 0;
if (pfc::strcmp_partial(p_path,"file://") == 0) walk += strlen("file://");
create_path_internal(p_path,walk + 3,p_abort);
} else if (test_netpath(p_path)) {
t_size walk = 0;
if (pfc::strcmp_partial(p_path,"file://") == 0) walk += strlen("file://");
while(p_path[walk] == '\\') walk++;
while(p_path[walk] != 0 && p_path[walk] != '\\') walk++;
while(p_path[walk] == '\\') walk++;
while(p_path[walk] != 0 && p_path[walk] != '\\') walk++;
while(p_path[walk] == '\\') walk++;
create_path_internal(p_path,walk,p_abort);
} else {
pfc::throw_exception_with_message< exception_io > ("Could not create directory structure; unknown path format");
}
}
#ifdef _WIN32
static bool is_bad_dirchar(char c)
{
return c==' ' || c=='.';
}
#endif
void make_path(const char * parent,const char * filename,const char * extension,bool allow_new_dirs,pfc::string8 & out,bool really_create_dirs,abort_callback & p_abort)
{
out.reset();
if (parent && *parent)
{
out = parent;
out.fix_dir_separator('\\');
}
bool last_char_is_dir_sep = true;
while(*filename)
{
#ifdef WIN32
if (allow_new_dirs && is_bad_dirchar(*filename))
{
const char * ptr = filename+1;
while(is_bad_dirchar(*ptr)) ptr++;
if (*ptr!='\\' && *ptr!='/') out.add_string(filename,ptr-filename);
filename = ptr;
if (*filename==0) break;
}
#endif
if (pfc::is_path_bad_char(*filename))
{
if (allow_new_dirs && (*filename=='\\' || *filename=='/'))
{
if (!last_char_is_dir_sep)
{
if (really_create_dirs) try{filesystem::g_create_directory(out,p_abort);}catch(exception_io_already_exists){}
out.add_char('\\');
last_char_is_dir_sep = true;
}
}
else
out.add_char('_');
}
else
{
out.add_byte(*filename);
last_char_is_dir_sep = false;
}
filename++;
}
if (out.length()>0 && out[out.length()-1]=='\\')
{
out.add_string("noname");
}
if (extension && *extension)
{
out.add_char('.');
out.add_string(extension);
}
}
}
pfc::string create_directory_helper::sanitize_formatted_path(pfc::stringp formatted, bool allowWC) {
return sanitize_formatted_path_ex(formatted, allowWC, pfc::io::path::charReplaceDefault);
};
pfc::string create_directory_helper::sanitize_formatted_path_ex(pfc::stringp formatted, bool allowWC, charReplace_t replace) {
pfc::string out;
t_size curSegBase = 0;
for (t_size walk = 0; ; ++walk) {
const char c = formatted[walk];
const bool end = (c == 0);
if (end || pfc::io::path::isSeparator(c)) {
if (curSegBase < walk) {
pfc::string seg(formatted + curSegBase, walk - curSegBase);
out = pfc::io::path::combine(out, pfc::io::path::validateFileName(seg, allowWC, end /*preserve ext*/, replace));
}
if (end) break;
curSegBase = walk + 1;
}
}
return out;
}
void create_directory_helper::format_filename_ex(const metadb_handle_ptr & handle, titleformat_hook * p_hook, titleformat_object::ptr spec, const char * suffix, pfc::string_base & out) {
format_filename_ex(handle, p_hook, spec, suffix, out, pfc::io::path::charReplaceDefault);
}
void create_directory_helper::format_filename_ex(const metadb_handle_ptr & handle,titleformat_hook * p_hook,titleformat_object::ptr spec,const char * suffix, pfc::string_base & out, charReplace_t replace) {
pfc::string_formatter formatted;
titleformat_text_filter_myimpl filter;
filter.m_replace = replace;
handle->format_title(p_hook,formatted,spec,&filter);
formatted << suffix;
out = sanitize_formatted_path_ex(formatted, false, replace).ptr();
}
void create_directory_helper::format_filename(const metadb_handle_ptr & handle,titleformat_hook * p_hook,titleformat_object::ptr spec,pfc::string_base & out) {
format_filename_ex(handle, p_hook, spec, "", out);
}
void create_directory_helper::format_filename(const metadb_handle_ptr & handle,titleformat_hook * p_hook,const char * spec,pfc::string_base & out)
{
service_ptr_t<titleformat_object> script;
if (titleformat_compiler::get()->compile(script,spec)) {
format_filename(handle, p_hook, script, out);
} else {
out.reset();
}
}
static bool substSanity(const char * subst) {
if (subst == nullptr) return false;
for (size_t w = 0; subst[w]; ++w) {
if (pfc::io::path::isSeparator(subst[w])) return false;
}
return true;
}
void create_directory_helper::titleformat_text_filter_myimpl::write(const GUID & p_inputType,pfc::string_receiver & p_out,const char * p_data,t_size p_dataLength) {
if (p_inputType == titleformat_inputtypes::meta) {
pfc::string_formatter temp;
for(t_size walk = 0; walk < p_dataLength; ++walk) {
char c = p_data[walk];
if (c == 0) break;
const char * subst = nullptr;
if (pfc::io::path::isSeparator(c)) {
if (m_replace) {
const char * proposed = m_replace(c);
if (substSanity(proposed)) subst = proposed;
}
if (subst == nullptr) subst = "-";
}
if (subst != nullptr) temp.add_string(subst);
else temp.add_byte(c);
}
p_out.add_string(temp);
} else p_out.add_string(p_data,p_dataLength);
}