string stream::read_line(value sep_) {
local_root_scope scope;
if (sep_.is_undefined_or_null())
sep_ = string("\n");
string sep = sep_.to_string();
if (sep.length() != 1)
throw exception("Line separators with size other than 1 are not supported");
int sepc = sep.data()[0];
if (sepc >= 128)
throw exception("Non-ASCII line separators are not supported");
std::string line;
for (;;) {
int ch = streambuf_->sbumpc();
if (ch == std::char_traits<char>::eof())
break;
line += ch;
if (ch == sepc)
break;
}
return line;
}
object fs_base::raw_open(char const* name, value mode, value perms) {
// TODO: Deal with permissions somewhere :)
if (!perms.is_undefined_or_null())
throw exception("rawOpen: permissions not yet supported");
return create_native_object<io::file>(object(), name, mode);
}
object sqlite3::compile(flusspferd::string sql_in, value bind ) {
local_root_scope scope;
size_t n_bytes = sql_in.length() * 2;
sqlite3_stmt * sth = 0;
js_char16_t * tail = 0; // uncompiled part of the sql (when multiple stmts)
if (sqlite3_prepare16_v2(db, sql_in.data(), n_bytes, &sth, (const void**)&tail) != SQLITE_OK)
{
raise_sqlite_error(db);
}
object cursor = create<sqlite3_cursor>(fusion::make_vector(sth));
string tail_str;
if (tail) {
tail_str = string(tail);
}
string sql = sql_in.substr( 0, sql_in.size() - tail_str.size() );
cursor.define_property("sql", sql);
cursor.define_property("tail", tail_str);
if ( !bind.is_undefined_or_null() ) {
cursor.call("bind", bind );
}
return cursor;
}
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 );
}