From 8480e8287fdf3aa933ad7b82457b3e67ab0bfa0b Mon Sep 17 00:00:00 2001
From: Nathan Lasseter <Nathan Lasseter nathan@bytemark.co.uk>
Date: Mon, 21 Oct 2013 20:14:27 +0100
Subject: First commit

---
 .gitignore     |  2 ++
 Makefile       | 10 ++++++++++
 Readme.textile |  9 +++++++++
 server.d       | 26 ++++++++++++++++++++++++++
 serverutils.d  | 17 +++++++++++++++++
 5 files changed, 64 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Makefile
 create mode 100644 Readme.textile
 create mode 100644 server.d
 create mode 100644 serverutils.d

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6c46439
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+*.o
+server
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..b741505
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,10 @@
+TARGET=server
+PREQS=server.o serverutils.o
+
+all: ${TARGET}
+
+${TARGET}: ${PREQS}
+	dmd -of$@ $^
+
+%.o: %.d
+	dmd -c $<
diff --git a/Readme.textile b/Readme.textile
new file mode 100644
index 0000000..b47c8ca
--- /dev/null
+++ b/Readme.textile
@@ -0,0 +1,9 @@
+h1. servd
+
+h2. Lightweight low-config no-frills webserver
+
+servd is a very non-featureful webserver. It doesn't yet even do the web part.
+
+It roots itself in the directory it is called from.
+
+Call it with a port. It only listens locally.
diff --git a/server.d b/server.d
new file mode 100644
index 0000000..640271c
--- /dev/null
+++ b/server.d
@@ -0,0 +1,26 @@
+import std.socket, std.stdio,
+       std.conv, std.file,
+       std.string;
+import serverutils;
+
+void main(string[] args) {
+	if (args.length != 2) return;
+	auto sock = new TcpSocket();
+	sock.bind(new InternetAddress("127.0.0.1", to!ushort(args[1])));
+	sock.listen(1000);
+	while (true) {
+    auto level = 0;
+		auto pair = sock.accept();
+		char[255] filename;
+		auto len = pair.receive(filename);
+    auto file = filename[0 .. len];
+    file = strip(file);
+    if (inRoot(file)) {
+  		pair.send(readText(file));
+    } else {
+      pair.send("ERROR: Client left root!\n");
+    }
+		pair.shutdown(SocketShutdown.BOTH);
+		pair.close();
+	}
+}
diff --git a/serverutils.d b/serverutils.d
new file mode 100644
index 0000000..d5b9836
--- /dev/null
+++ b/serverutils.d
@@ -0,0 +1,17 @@
+bool inRoot(char[] path) {
+  auto level = 0;
+  if (path[0] == '/') return false; 
+  while (path.length > 0) {
+    if (path[0] == '/') {
+      level++;
+      path = path[1..$];
+    } else if (path[0] == '.' && path[1] == '.' && path[2] == '/') {
+      level--;
+      path = path[3..$];
+    } else {
+      path = path[1..$];
+    }
+    if (level < 0) return false;
+  }
+  return true;
+}
-- 
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