object base_parser::parse(value source) {
if (source.is_object()) {
object o = source.get_object();
if (is_native<io::stream>(o)) {
io::stream &s = flusspferd::get_native<io::stream>(o);
// TODO: Work out if the stream is readable or not!
std::ifstream stream;
dynamic_cast<std::ios&>(stream).rdbuf( s.streambuf() );
sax_source is;
is.setByteStream(stream);
return parse_source(is);
}
/*else if (is_native<binary>(o)) {
// Couldn't get this working. Compile errors
binary &b = flusspferd::get_native<flusspferd::binary>(o);
call_context c;
c.arg.push_back(b);
create<io::binary_stream>(c);
root_object s(b_s);
std::ifstream stream;
dynamic_cast<std::ios&>(stream).rdbuf( b_s.streambuf() );
sax_source is;
is.setByteStream(stream);
return parse_source(is);
}*/
}
std::string str = source.to_std_string();
security &sec = security::get();
if (!sec.check_path(str, security::READ)) {
throw exception(
format("xml.Parser#parse: could not open file: 'denied by security' (%s)")
% str
);
}
sax_source is;
is.setSystemId(str);
return parse_source(is);
}
void file::open(char const *name, value options) {
security &sec = security::get();
if (boost::filesystem::is_directory(std::string(name))) {
throw exception(
std::string("Could not open file: it is a directory (")+ name + ")"
);
}
std::ios::openmode open_mode = std::ios::openmode();
bool exclusive = false, create = false;
if (options.is_string()) {
// String modes always set create
std::string mode = options.to_std_string();
if (mode == "r")
open_mode = std::ios::in;
else if (mode == "r+")
open_mode = std::ios::in | std::ios::out;
else if (mode == "r+x") {
open_mode = std::ios::in | std::ios::out;
exclusive = create = true;
}
else if (mode == "w") {
open_mode = std::ios::out;
create = true;
}
else if (mode == "wx") {
open_mode = std::ios::out;
exclusive = create = true;
}
else if (mode == "w+x") {
open_mode = std::ios::out | std::ios::in | std::ios::trunc;
exclusive = create = true;
}
else {
throw exception(format("File.open: mode '%s' not supported (yet?)") % mode);
}
}else if (options.is_object()) {
object obj = options.get_object();
create = obj.get_property("create").to_boolean();
if (obj.get_property("read").to_boolean())
open_mode |= std::ios::in;
if (obj.get_property("write").to_boolean())
open_mode |= std::ios::out;
if (obj.get_property("truncate").to_boolean())
open_mode |= std::ios::trunc;
if (obj.get_property("append").to_boolean()) {
if (!(open_mode & std::ios::out)) {
throw exception("File.open: append mode can only be used with write");
}
open_mode |= std::ios::app | std::ios::out;
}
if (obj.get_property("exclusive").to_boolean()) {
if (!create)
throw exception("File.open: exclusive mode can only be used with create");
exclusive = create = true;
}
}else if (options.is_undefined_or_null()) {
open_mode = std::ios::in;
}else {
throw exception("File.open: Invalid options argument", "TypeError");
}
unsigned sec_mode = 0;
if (open_mode & std::ios::in) sec_mode |= security::READ;
if (open_mode & std::ios::out) sec_mode |= security::WRITE;
if (create) sec_mode |= security::CREATE;
if (!sec.check_path(name, sec_mode)) {
throw exception(
format("File.open: could not open file: 'denied by security' (%s)") % name
);
}
if (create) {
// C++ streams don't support O_EXCL|O_CREAT modes. Fall back to open
unsigned o_mode = exclusive
? O_CREAT|O_EXCL
: O_CREAT;
int fd = ::open(name, o_mode, 0666);
if (fd == -1)
throw exception(compose_error_message("File.open: couldn't create file", name));
// Done - got the file (exclusively) created.
::close(fd);
}
p->stream.open(name, open_mode);
if (!p->stream)
throw exception(compose_error_message("Could not open file", name));
define_property("fileName", string(name),
permanent_property | read_only_property );
}
