Implemented a simple 'ls' command for the telnet server.

1 files changed, 45 insertions, 0 deletions

diff --git a/commands.cpp b/commands.cpp
new file mode 100644
index 0000000..dfeeebb
--- /dev/null
+++ b/commands.cpp
@@ -0,0 +1,45 @@
+#include "commands.h"
+#include "music.h"
+
+#include <boost/cast.hpp>
+
+#include <iostream>
+
+static std::vector<std::string> ls(const std::vector<std::string>& args) {
+	if(args.size() != 2) {
+		throw commands::CommandException("usage: ls DIR");
+	}
+
+	MusicListing::p ml = music::get(args[1]);
+	if(!ml || !fs::is_directory(ml->path)) {
+		throw commands::CommandException("no such directory");
+	}
+	std::vector<std::string> result;
+	MusicDirectory *dir = boost::polymorphic_downcast<MusicDirectory*>(&(*ml));
+	for(MusicDirectory::PathListings::iterator it = dir->directories.begin(); it != dir->directories.end(); it++) {
+		std::string rel_path = it->string().substr(music::root_directory.string().size());
+		result.push_back(rel_path);
+	}
+	for(MusicDirectory::PathListings::iterator it = dir->tracks.begin(); it != dir->tracks.end(); it++) {
+		std::string rel_path = it->string().substr(music::root_directory.string().size());
+		result.push_back(rel_path);
+	}
+
+	return result;
+}
+
+std::map<std::string, commands::Handler> commands::handlers;
+
+void commands::init() {
+	handlers["ls"] = ls;
+}
+
+std::vector<std::string> commands::execute(const std::vector<std::string>& args) {
+	assert(args.size());
+	Handler h = commands::handlers[args[0]];
+	if(!h) {
+		throw CommandException("unknown command");
+	}
+
+	return h(args);
+}