1 files changed, 63 insertions, 0 deletions
diff --git a/src/main.zig b/src/main.zig
new file mode 100644
index 0000000..335e80c
--- /dev/null
+++ b/src/main.zig
@@ -0,0 +1,63 @@
+const std = @import("std");
+
+// extremely basic http file server
+pub fn main() !void {
+  var allocator = std.heap.GeneralPurposeAllocator(.{}){};
+  defer _ = allocator.deinit();
+  const alloc = allocator.allocator();
+  var svr = std.http.Server.init(alloc, .{.reuse_address = true});
+  defer svr.deinit();
+  const addr = try std.net.Address.resolveIp("127.0.0.1", 8080);
+  
+  try svr.listen(addr);
+  while (true) {
+    var res = try svr.accept(.{.allocator = alloc });
+    defer res.deinit();
+    try res.wait();
+    const target = res.request.target;
+    const path = try std.fs.path.join(alloc, &[_][]const u8{".", target});
+    defer alloc.free(path);
+    if (std.fs.cwd().openFile(path, .{})) |file| {
+      const md = try file.metadata();
+      if (md.kind() == .directory) {
+        const index_path = try std.fs.path.join(alloc, &[_][]const u8{path, "index.html"});
+        defer alloc.free(index_path);
+        if (std.fs.cwd().openFile(index_path, .{})) |index_file| {
+          const index_md = try index_file.metadata();
+          try serve_file(&res, index_file, index_md);
+        } else |_| {
+          try serve_error(&res, .not_found);
+        }
+      } else {
+        try serve_file(&res, file, md);
+      }
+    } else |err| {
+      switch (err) {
+        error.FileNotFound => try serve_error(&res, .not_found),
+        else => try serve_error(&res, .bad_request),
+      }
+    }
+    try res.finish();
+  }
+}
+
+fn serve_file(res: *std.http.Server.Response, file: std.fs.File, md: std.fs.File.Metadata) !void {
+  res.transfer_encoding = .{ .content_length = md.size() };
+  try res.do();
+  var buf = [_]u8{0} ** 1024;
+  while (true) {
+    const read = try file.read(&buf);
+    if (read == 0) break;
+    _ = try res.write(buf[0..read]);
+  }
+}
+
+fn serve_error(res: *std.http.Server.Response, status: std.http.Status) !void {
+  res.status = status;
+  const msg = 
+    \\ <!doctype html><html><body>error!</body></html>
+    ;
+  res.transfer_encoding = . { .content_length = msg.len };
+   try res.do();
+  _ = try res.write(msg);
+}