X-Git-Url: https://gitweb.ps.run/chirp/blobdiff_plain/a68112f4ed195cb5dbe21e8401f04e2f6cc1a7e8..e8c4ebe56c1382517e02f9a770397799b0e0b066:/src/main.zig

diff --git a/src/main.zig b/src/main.zig
index b54841d..2fa757c 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -31,6 +31,7 @@ const User = struct {
     display_name: DisplayName,
     password_hash: PasswordHash,
     posts: PostList,
+    replies: PostList,
     following: UserList,
     followers: UserList,
 
@@ -222,6 +223,7 @@ const Chirp = struct {
                 .display_name = display_name,
                 .password_hash = try hash_password(password),
                 .posts = try PostList.init(txn),
+                .replies = try PostList.init(txn),
                 .following = try UserList.init(txn),
                 .followers = try UserList.init(txn),
                 .post_lists = try PostListList.init(txn),
@@ -269,7 +271,7 @@ const Chirp = struct {
         try sessions.del(session_token);
     }
 
-    fn append_post(env: lmdb.Env, user_id: UserId, post_list: PostList, parent_id: ?PostId, quote_id: ?PostId, text: []const u8) !void {
+    fn append_post(env: lmdb.Env, user_id: UserId, post_list: PostList, parent_id: ?PostId, quote_id: ?PostId, text: []const u8) !PostId {
         var post_id: PostId = undefined;
 
         // TODO: do this in one commit
@@ -315,39 +317,53 @@ const Chirp = struct {
             var quotes = try quote_post.quotes.open(txn);
             try quotes.append(post_id);
         }
+
+        return post_id;
     }
 
     fn post(env: lmdb.Env, user_id: UserId, text: []const u8) !void {
-        const txn = try env.txn();
-
+        var txn = try env.txn();
         const users = try Db.users(txn);
         const user = try users.get(user_id);
-
         txn.abort();
 
-        try append_post(env, user_id, user.posts, null, null, text);
+        const post_id = try append_post(env, user_id, user.posts, null, null, text);
+
+        txn = try env.txn();
+        var replies_view = try user.replies.open(txn);
+        try replies_view.append(post_id);
+        try txn.commit();
     }
 
     fn comment(env: lmdb.Env, user_id: UserId, parent_post_id: PostId, text: []const u8) !void {
-        const txn = try env.txn();
+        var txn = try env.txn();
+        const users = try Db.users(txn);
+        const user = try users.get(user_id);
 
         const posts = try Db.posts(txn);
         const parent_post = try posts.get(parent_post_id);
-
         txn.abort();
 
-        try append_post(env, user_id, parent_post.comments, parent_post_id, null, text);
+        const post_id = try append_post(env, user_id, parent_post.comments, parent_post_id, null, text);
+
+        txn = try env.txn();
+        var replies_view = try user.replies.open(txn);
+        try replies_view.append(post_id);
+        try txn.commit();
     }
 
     fn quote(env: lmdb.Env, user_id: UserId, quote_post_id: PostId, text: []const u8) !void {
-        const txn = try env.txn();
-
+        var txn = try env.txn();
         const users = try Db.users(txn);
         const user = try users.get(user_id);
-
         txn.abort();
 
-        try append_post(env, user_id, user.posts, null, quote_post_id, text);
+        const post_id = try append_post(env, user_id, user.posts, null, quote_post_id, text);
+
+        txn = try env.txn();
+        var replies_view = try user.replies.open(txn);
+        try replies_view.append(post_id);
+        try txn.commit();
     }
 
     fn vote(env: lmdb.Env, post_id: PostId, user_id: UserId, kind: Vote.Kind) !void {
@@ -434,10 +450,8 @@ const Chirp = struct {
 // }}}
 
 // html {{{
-fn html_form(res: *http.Response, comptime fmt_action: []const u8, args_action: anytype, inputs: anytype) !void {
-    try res.write("<form action=\"", .{});
-    try res.write(fmt_action, args_action);
-    try res.write("\" method=\"post\">", .{});
+fn html_form(res: *http.Response, action: []const u8, inputs: anytype) !void {
+    try res.write("<form action=\"{s}\" method=\"post\">", .{action});
 
     inline for (inputs) |input| {
         switch (@typeInfo(@TypeOf(input))) {
@@ -496,7 +510,7 @@ fn write_header(res: *http.Response, logged_in: ?Login) !void {
         try res.write(
             \\<a href="/post">Post</a><br />
         , .{});
-        try html_form(res, "/logout", .{}, .{
+        try html_form(res, "/logout", .{
             \\type="submit" value="Logout"
         });
         try res.write("<br /><br />", .{});
@@ -507,17 +521,13 @@ fn write_header(res: *http.Response, logged_in: ?Login) !void {
             \\<input type="text" name="username" />
             \\<input type="password" name="password" />
             \\<input type="submit" value="Register" />
-            \\</form>
+            \\</form><br />
             \\<form action="/login" method="post">
             \\<input type="text" name="username" />
             \\<input type="password" name="password" />
             \\<input type="submit" value="Login" />
-            \\</form>
+            \\</form><br /><br />
         , .{});
-        try html_form(res, "/quit", .{}, .{
-            \\type="submit" value="Quit"
-        });
-        try res.write("<br /><br />", .{});
     }
 }
 fn write_start(res: *http.Response) !void {
@@ -549,16 +559,22 @@ fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: Po
 
     try res.write(
         \\<div>
-        \\<span><a href="/user/{s}">{s}</a> {s}</span><br />
+        \\<span><a href="/user/{s}">{s}</a>
+    , .{ user.name.constSlice(), user.display_name.constSlice() });
+    if (post.parent_id) |id| {
+        try res.write(" <a href=\"/post/{x}\">..</a>", .{@intFromEnum(id)});
+    }
+    try res.write(
+        \\ {s}</span><br />
         \\<span>{s}</span><br />
-    , .{ user.name.constSlice(), user.display_name.constSlice(), time_str(post.time).constSlice(), post.text.constSlice() });
+    , .{ time_str(post.time).constSlice(), post.text.constSlice() });
 
     if (post.quote_id) |quote_id| {
         try res.write("<div style=\"border: 1px solid black;\">", .{});
         if (options.recurse > 0) {
             try write_post(res, txn, logged_in, quote_id, .{ .recurse = options.recurse - 1 });
         } else {
-            try res.write("<a href=\"/post/{x}\">...</a>", .{@intFromEnum(quote_id)});
+            try res.write("<a href=\"/post/{x}\">...</a>", .{@intFromEnum(post_id)});
         }
         try res.write("</div>", .{});
     }
@@ -571,23 +587,23 @@ fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: Po
     const vote: ?Vote = if (logged_in != null and try votes_view.has(logged_in.?.user.id)) try votes_view.get(logged_in.?.user.id) else null;
 
     if (vote != null and vote.?.kind == .Up) {
-        try html_form(res, "/upvote", .{}, .{
+        try html_form(res, "/upvote", .{
             .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },
             .{ "type=\"submit\" value=\"&#x2B06; {}\"", .{post.upvotes} },
         });
     } else {
-        try html_form(res, "/upvote", .{}, .{
+        try html_form(res, "/upvote", .{
             .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },
             .{ "type=\"submit\" value=\"&#x21E7; {}\"", .{post.upvotes} },
         });
     }
     if (vote != null and vote.?.kind == .Down) {
-        try html_form(res, "/downvote", .{}, .{
+        try html_form(res, "/downvote", .{
             .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },
             .{ "type=\"submit\" value=\"&#x2B07; {}\"", .{post.downvotes} },
         });
     } else {
-        try html_form(res, "/downvote", .{}, .{
+        try html_form(res, "/downvote", .{
             .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },
             .{ "type=\"submit\" value=\"&#x21E9; {}\"", .{post.downvotes} },
         });
@@ -609,6 +625,7 @@ fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: Po
         try res.write("<form action=\"/list_add\" method=\"post\">", .{});
         try res.write("<select name=\"list_id\">", .{});
         var it = lists_view.iterator();
+        // TODO: mark lists that already contain post
         while (it.next()) |kv| {
             const name = kv.val.name;
             const id = kv.val.list.idx.?;
@@ -624,7 +641,7 @@ fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: Po
     // TODO: maybe always show comment field and prompt for login
     if (options.show_comment_field and logged_in != null) {
         try res.write("<br /><br />", .{});
-        try html_form(res, "/comment", .{}, .{
+        try html_form(res, "/comment", .{
             .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },
             "type=\"text\" name=\"text\" placeholder=\"Text\"",
             "type=\"submit\" value=\"Comment\"",
@@ -659,6 +676,70 @@ fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: Po
         \\</div>
     , .{});
 }
+fn write_profile(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user: User) !void {
+    const following = try user.following.open(txn);
+    const followers = try user.followers.open(txn);
+
+    try res.write(
+        \\<h2 style="display: inline;"><a href="/user/{s}">{s}</a></h2>
+    , .{
+        user.name.constSlice(), user.display_name.constSlice(),
+    });
+    if (logged_in != null and user.id != logged_in.?.user.id) {
+        const login = logged_in.?;
+
+        // follow/unfollow
+        if (try followers.has(login.user.id)) {
+            try html_form(res, "/follow", .{
+                .{ "type=\"hidden\" name=\"user.id\" value=\"{x}\"", .{@intFromEnum(user.id)} },
+                \\type="submit" value="Unfollow"
+            });
+        } else {
+            try html_form(res, "/follow", .{
+                .{ "type=\"hidden\" name=\"user.id\" value=\"{x}\"", .{@intFromEnum(user.id)} },
+                \\type="submit" value="Follow"
+            });
+        }
+
+        // add to feed
+        const feeds_view = try login.user.feeds.open(txn);
+        try res.write("<form action=\"/feed_add\" method=\"post\">", .{});
+        try res.write("<select name=\"feed_id\">", .{});
+        var it = feeds_view.iterator();
+        while (it.next()) |kv| {
+            const name = kv.val.name;
+            const id = kv.val.list.idx.?;
+            try res.write("<option value=\"{x}\">{s}</option>", .{ id, name.constSlice() });
+        }
+        try res.write("</select>", .{});
+        try res.write("<input type=\"hidden\" name=\"user.id\" value=\"{x}\"></input>", .{@intFromEnum(user.id)});
+        try res.write("<input type=\"submit\" value=\"Add to feed\"></input>", .{});
+        try res.write("</form>", .{});
+    }
+    try res.write(
+        \\ <a href="/following/{s}">{} following</a>
+        \\ <a href="/followers/{s}">{} followers</a>
+        \\<br />
+    , .{
+        user.name.constSlice(), following.len(),
+        user.name.constSlice(), followers.len(),
+    });
+
+    try res.write("<a href=\"/replies/{s}\">Replies</a><br />", .{
+        user.name.constSlice(),
+    });
+
+    if (logged_in != null and user.id == logged_in.?.user.id) {
+        try res.write(
+            \\<a href="/lists">Lists</a>
+            \\<a href="/feeds">Feeds</a>
+            \\<a href="/edit">Edit</a><br />
+            \\<br />
+        , .{});
+    }
+
+    try res.write("<br />", .{});
+}
 fn write_posts(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_list: PostList) !void {
     const posts_view = try post_list.open(txn);
 
@@ -712,6 +793,39 @@ fn write_timeline(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user_li
         try res.write("<br />", .{});
     }
 }
+fn check_login(env: lmdb.Env, req: http.Request, res: *http.Response) !?Login {
+    var result: ?Login = null;
+
+    if (req.get_cookie("session_token")) |session_token_str| {
+        var remove_session_token = true;
+
+        if (std.fmt.parseUnsigned(SessionToken, session_token_str, 16) catch null) |session_token| {
+            // const session_token = try std.fmt.parseUnsigned(SessionToken, session_token_str, 10);
+            // const session_token = std.mem.bytesToValue(SessionToken, session_token_str);
+            if (Chirp.get_session_user_id(env, session_token) catch null) |user_id| {
+                const txn = try env.txn();
+                defer txn.abort();
+                const users = try Db.users(txn);
+
+                result = .{
+                    .user = try users.get(user_id),
+                    .session_token = session_token,
+                };
+
+                remove_session_token = false;
+            }
+        }
+
+        if (remove_session_token) {
+            try res.add_header(
+                "Set-Cookie",
+                .{"session_token=deleted; Expires=Thu, 01 Jan 1970 00:00:00 GMT"},
+            );
+        }
+    }
+
+    return result;
+}
 // }}}
 
 // GET {{{
@@ -719,7 +833,7 @@ const GET = struct {
     const Self = @This();
 
     txn: lmdb.Txn,
-    req: *http.Request,
+    req: http.Request,
     res: *http.Response,
     logged_in: ?Login,
 
@@ -771,48 +885,24 @@ const GET = struct {
             const users = try Db.users(self.txn);
             const user = try users.get(user_id);
 
-            const following = try user.following.open(self.txn);
-            const followers = try user.followers.open(self.txn);
+            try write_profile(self.res, self.txn, self.logged_in, user);
 
+            try write_posts(self.res, self.txn, self.logged_in, user.posts);
+        } else |err| {
             try self.res.write(
-                \\<h2 style="display: inline;"><a href="/user/{s}">{s}</a></h2>
-            , .{
-                user.name.constSlice(), user.display_name.constSlice(),
-            });
-            if (self.logged_in != null and user_id != self.logged_in.?.user.id) {
-                if (try followers.has(self.logged_in.?.user.id)) {
-                    try html_form(self.res, "/follow", .{}, .{
-                        .{ "type=\"hidden\" name=\"user_id\" value=\"{x}\"", .{@intFromEnum(user_id)} },
-                        \\type="submit" value="Unfollow"
-                    });
-                } else {
-                    try html_form(self.res, "/follow", .{}, .{
-                        .{ "type=\"hidden\" name=\"user_id\" value=\"{x}\"", .{@intFromEnum(user_id)} },
-                        \\type="submit" value="Follow"
-                    });
-                }
-            }
-            try self.res.write(
-                \\ <a href="/following/{s}">{} following</a>
-                \\ <a href="/followers/{s}">{} followers</a>
-                \\<br />
-            , .{
-                user.name.constSlice(), following.len(),
-                user.name.constSlice(), followers.len(),
-            });
-
-            if (self.logged_in != null and user_id == self.logged_in.?.user.id) {
-                try self.res.write(
-                    \\<a href="/lists">Lists</a>
-                    \\<a href="/feeds">Feeds</a>
-                    \\<a href="/edit">Edit</a><br />
-                    \\<br />
-                , .{});
-            }
+                \\<p>User not found [{}]</p>
+            , .{err});
+        }
+    }
+    pub fn @"/replies/"(self: Self, args: struct { username: []const u8 }) !void {
+        const user_ids = try Db.user_ids(self.txn);
+        if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
+            const users = try Db.users(self.txn);
+            const user = try users.get(user_id);
 
-            try self.res.write("<br />", .{});
+            try write_profile(self.res, self.txn, self.logged_in, user);
 
-            try write_posts(self.res, self.txn, self.logged_in, user.posts);
+            try write_posts(self.res, self.txn, self.logged_in, user.replies);
         } else |err| {
             try self.res.write(
                 \\<p>User not found [{}]</p>
@@ -884,7 +974,7 @@ const GET = struct {
         const referer = if (self.req.get_header("Referer")) |ref| ref else self.req.target;
 
         if (self.logged_in != null) {
-            try html_form(self.res, "/quote", .{}, .{
+            try html_form(self.res, "/quote", .{
                 .{ "type=\"hidden\" name=\"referer\" value=\"{s}\"", .{referer} },
                 .{ "type=\"hidden\" name=\"post_id\" value=\"{x}\"", .{@intFromEnum(post.id)} },
                 "type=\"text\" name=\"text\" placeholder=\"Text\"",
@@ -900,14 +990,14 @@ const GET = struct {
             try self.res.write("<br />", .{});
         }
     }
-    pub fn @"/list/"(self: Self, args: struct { list_id: PostListList.Index }) !void {
+    pub fn @"/list/"(self: Self, args: struct { list_id: PostList.Index }) !void {
         try write_posts(self.res, self.txn, self.logged_in, PostList{ .idx = args.list_id });
     }
     pub fn @"/lists"(self: Self) !void {
         if (self.logged_in) |login| {
             const post_lists_view = try login.user.post_lists.open(self.txn);
 
-            try html_form(self.res, "/new_list", .{}, .{
+            try html_form(self.res, "/create_list", .{
                 "type=\"text\" name=\"name\"",
                 "type=\"submit\" value=\"Add\"",
             });
@@ -919,8 +1009,44 @@ const GET = struct {
                 const name = kv.val.name;
                 const post_list = kv.val.list;
                 try self.res.write(
-                    \\<a href="/list/{x}">{s}</a><br />
+                    \\<a href="/list/{x}">{s}</a>
                 , .{ post_list.idx.?, name.constSlice() });
+                try html_form(self.res, "/delete_list", .{
+                    .{ "type=\"hidden\" name=\"list_id\" value=\"{x}\"", .{kv.key} },
+                    "type=\"submit\" value=\"Delete\"",
+                });
+                try self.res.write("<br />", .{});
+            }
+        } else {
+            try self.res.write("not logged in", .{});
+        }
+    }
+    pub fn @"/feed/"(self: Self, args: struct { feed_id: UserList.Index }) !void {
+        try write_timeline(self.res, self.txn, self.logged_in, UserList{ .idx = args.feed_id });
+    }
+    pub fn @"/feeds"(self: Self) !void {
+        if (self.logged_in) |login| {
+            const feeds_view = try login.user.feeds.open(self.txn);
+
+            try html_form(self.res, "/create_feed", .{
+                "type=\"text\" name=\"name\"",
+                "type=\"submit\" value=\"Add\"",
+            });
+
+            try self.res.write("<br /><br />", .{});
+
+            var it = feeds_view.iterator();
+            while (it.next()) |kv| {
+                const name = kv.val.name;
+                const user_list = kv.val.list;
+                try self.res.write(
+                    \\<a href="/feed/{x}">{s}</a>
+                , .{ user_list.idx.?, name.constSlice() });
+                try html_form(self.res, "/delete_feed", .{
+                    .{ "type=\"hidden\" name=\"list_id\" value=\"{x}\"", .{kv.key} },
+                    "type=\"submit\" value=\"Delete\"",
+                });
+                try self.res.write("<br />", .{});
             }
         } else {
             try self.res.write("not logged in", .{});
@@ -931,7 +1057,7 @@ const GET = struct {
             _ = login;
             const referer = if (self.req.get_header("Referer")) |ref| ref else self.req.target;
 
-            try html_form(self.res, "/post", .{}, .{
+            try html_form(self.res, "/post", .{
                 .{ "type=\"hidden\" name=\"referer\" value=\"{s}\"", .{referer} },
                 "type=\"text\" name=\"text\"",
                 "type=\"submit\" value=\"Post\"",
@@ -943,17 +1069,17 @@ const GET = struct {
     pub fn @"/edit"(self: Self) !void {
         if (self.logged_in) |login| {
             try self.res.write("<br />Username: ", .{});
-            try html_form(self.res, "/set_username", .{}, .{
+            try html_form(self.res, "/set_username", .{
                 .{ "type=\"text\" name=\"username\" placeholder=\"{s}\"", .{login.user.name.constSlice()} },
                 "type=\"submit\" value=\"Change\"",
             });
             try self.res.write("<br />Display Name: ", .{});
-            try html_form(self.res, "/set_display_name", .{}, .{
+            try html_form(self.res, "/set_display_name", .{
                 .{ "type=\"text\" name=\"display_name\" placeholder=\"{s}\"", .{login.user.display_name.constSlice()} },
                 "type=\"submit\" value=\"Change\"",
             });
             try self.res.write("<br />Password: ", .{});
-            try html_form(self.res, "/set_password", .{}, .{
+            try html_form(self.res, "/set_password", .{
                 "type=\"text\" name=\"password\"",
                 "type=\"submit\" value=\"Change\"",
             });
@@ -977,7 +1103,7 @@ const POST = struct {
     const Self = @This();
 
     env: lmdb.Env,
-    req: *http.Request,
+    req: http.Request,
     res: *http.Response,
     logged_in: ?Login,
 
@@ -1124,13 +1250,14 @@ const POST = struct {
             }
         }
     }
-    pub fn @"/new_list"(self: Self) !void {
+    // TODO: add arguments instead of parsing manually
+    pub fn @"/create_list"(self: Self) !void {
         if (self.logged_in) |login| {
             const name_str = self.req.get_value("name") orelse return error.NoName;
             const name = try Name.fromSlice(name_str);
+            // TODO: decode name
 
             var txn = try self.env.txn();
-
             const postlist = try PostList.init(txn);
             try txn.commit();
 
@@ -1140,24 +1267,87 @@ const POST = struct {
             try txn.commit();
         }
     }
-    pub fn @"/list_add"(self: Self) !void {
+    pub fn @"/delete_list"(self: Self, args: struct { list_id: PostList.Index }) !void {
+        if (self.logged_in) |login| {
+            var post_list: ?PostList = null;
+            {
+                const txn = try self.env.txn();
+                defer txn.commit() catch {};
+                var post_lists_view = try login.user.post_lists.open(txn);
+                post_list = (try post_lists_view.get(args.list_id)).list;
+                try post_lists_view.del(args.list_id);
+            }
+            if (post_list != null) {
+                const txn = try self.env.txn();
+                defer txn.commit() catch {};
+                var list_view = try post_list.?.open(txn);
+                try list_view.clear();
+            }
+        }
+    }
+    pub fn @"/list_add"(self: Self, args: struct { list_id: PostList.Index, post_id: PostId }) !void {
         if (self.logged_in) |login| {
             _ = login;
 
-            const list_id_str = self.req.get_value("list_id") orelse return error.NoListId;
-            const post_id_str = self.req.get_value("post_id") orelse return error.NoPostId;
-            const list_id = try std.fmt.parseUnsigned(PostList.Index, list_id_str, 16);
-            const post_id = try parse_enum(PostId, post_id_str, 16);
-
             const txn = try self.env.txn();
             defer txn.commit() catch {};
 
-            const post_list = PostList{ .idx = list_id };
+            const post_list = PostList{ .idx = args.list_id };
             var post_list_view = try post_list.open(txn);
-            if (try post_list_view.has(post_id)) {
-                try post_list_view.del(post_id);
+            if (try post_list_view.has(args.post_id)) {
+                try post_list_view.del(args.post_id);
+            } else {
+                try post_list_view.append(args.post_id);
+            }
+        }
+    }
+    pub fn @"/create_feed"(self: Self) !void {
+        if (self.logged_in) |login| {
+            const name_str = self.req.get_value("name") orelse return error.NoName;
+            const name = try Name.fromSlice(name_str);
+
+            var txn = try self.env.txn();
+            const userlist = try UserList.init(txn);
+            try txn.commit();
+
+            txn = try self.env.txn();
+            var feeds_view = try login.user.feeds.open(txn);
+            _ = try feeds_view.append(.{ .name = name, .list = userlist });
+            try txn.commit();
+        }
+    }
+    pub fn @"/delete_feed"(self: Self, args: struct { list_id: UserList.Index }) !void {
+        if (self.logged_in) |login| {
+            var user_list: ?UserList = null;
+
+            {
+                const txn = try self.env.txn();
+                defer txn.commit() catch {};
+                var feeds_view = try login.user.feeds.open(txn);
+                user_list = (try feeds_view.get(args.list_id)).list;
+                try feeds_view.del(args.list_id);
+            }
+            if (user_list != null) {
+                const txn = try self.env.txn();
+                defer txn.commit() catch {};
+                var list_view = try user_list.?.open(txn);
+                try list_view.clear();
+            }
+        }
+    }
+    pub fn @"/feed_add"(self: Self, args: struct { feed_id: UserList.Index, user_id: UserId }) !void {
+        if (self.logged_in) |login| {
+            _ = login;
+
+            const txn = try self.env.txn();
+            defer txn.commit() catch {};
+
+            const user_list = UserList{ .idx = args.feed_id };
+            var user_list_view = try user_list.open(txn);
+            if (try user_list_view.has(args.user_id)) {
+                try user_list_view.del(args.user_id);
             } else {
-                try post_list_view.append(post_id);
+                try user_list_view.append(args.user_id);
             }
         }
     }
@@ -1256,6 +1446,11 @@ const ReqBufferSize = 4096;
 const ResHeadBufferSize = 1024 * 64;
 const ResBodyBufferSize = 1024 * 64;
 
+// TODO: static?
+var req_buffer: [ReqBufferSize]u8 = undefined;
+var res_head_buffer: [ResHeadBufferSize]u8 = undefined;
+var res_body_buffer: [ResBodyBufferSize]u8 = undefined;
+
 pub fn main() !void {
     // server
     var server = try http.Server.init("::", 8080);
@@ -1274,7 +1469,15 @@ pub fn main() !void {
     std.debug.print("Posts:\n", .{});
     try list_posts(env);
 
-    try handle_connection(&server, env);
+    while (true) {
+        server.wait();
+        while (true) {
+            const req = (server.next_request(&req_buffer) catch break) orelse break;
+            handle_request(env, req) catch {
+                try handle_error(env, req);
+            };
+        }
+    }
     // const ThreadCount = 1;
     // var ts: [ThreadCount]std.Thread = undefined;
 
@@ -1288,99 +1491,64 @@ pub fn main() !void {
     std.debug.print("done\n", .{});
 }
 
-fn handle_connection(server: *http.Server, env: lmdb.Env) !void {
-    // TODO: static?
-    var req_buffer: [ReqBufferSize]u8 = undefined;
-    var res_head_buffer: [ResHeadBufferSize]u8 = undefined;
-    var res_body_buffer: [ResBodyBufferSize]u8 = undefined;
-
-    while (true) {
-        server.wait();
-
-        while (try server.next_request(&req_buffer)) |*_req| {
-            var req: *http.Request = @constCast(_req);
-            // std.debug.print("[{}]: {s}\n", .{ req.method, req.target });
-            // std.debug.print("[{}]: {s}\n", .{ req.method, req.head.? });
-
-            // reponse
-            var res = http.Response.init(req.fd, &res_head_buffer, &res_body_buffer);
-
-            // check session token
-            var logged_in: ?Login = null;
-
-            if (req.get_cookie("session_token")) |session_token_str| {
-                var remove_session_token = true;
-
-                if (std.fmt.parseUnsigned(SessionToken, session_token_str, 16) catch null) |session_token| {
-                    // const session_token = try std.fmt.parseUnsigned(SessionToken, session_token_str, 10);
-                    // const session_token = std.mem.bytesToValue(SessionToken, session_token_str);
-                    if (Chirp.get_session_user_id(env, session_token) catch null) |user_id| {
-                        const txn = try env.txn();
-                        defer txn.abort();
-                        const users = try Db.users(txn);
-
-                        logged_in = .{
-                            .user = try users.get(user_id),
-                            .session_token = session_token,
-                        };
-
-                        remove_session_token = false;
-                    }
-                }
+fn handle_error(env: lmdb.Env, req: http.Request) !void {
+    _ = env;
+    var res = http.Response.init(req.fd, &res_head_buffer, &res_body_buffer);
+    try write_start(&res);
+    try res.write("Oops, something went terribly wrong there D:", .{});
+    try write_end(&res);
+    try res.send();
+}
+fn handle_request(env: lmdb.Env, req: http.Request) !void {
+    // std.debug.print("[{}]: {s}\n", .{ req.method, req.target });
+    // std.debug.print("[{}]: {s}\n", .{ req.method, req.head.? });
 
-                if (remove_session_token) {
-                    try res.add_header(
-                        "Set-Cookie",
-                        .{"session_token=deleted; Expires=Thu, 01 Jan 1970 00:00:00 GMT"},
-                    );
-                }
-            }
+    // reponse
+    var res = http.Response.init(req.fd, &res_head_buffer, &res_body_buffer);
 
-            // TODO: refactor into functions
-            // TODO: make sure we send a reply
+    // check session token
+    const logged_in: ?Login = try check_login(env, req, &res);
 
-            // html
-            if (req.method == .GET) {
-                try write_start(&res);
-                try write_header(&res, logged_in);
+    // html
+    if (req.method == .GET) {
+        try write_start(&res);
+        try write_header(&res, logged_in);
 
-                const txn = try env.txn();
-                defer txn.abort();
+        const txn = try env.txn();
+        defer txn.abort();
 
-                const get = GET{
-                    .txn = txn,
-                    .req = req,
-                    .res = &res,
-                    .logged_in = logged_in,
-                };
-                if (try get.handle()) {} else {
-                    try res.redirect("/");
-                }
+        const get = GET{
+            .txn = txn,
+            .req = req,
+            .res = &res,
+            .logged_in = logged_in,
+        };
+        if (try get.handle()) {} else {
+            try res.redirect("/");
+        }
 
-                try write_end(&res);
-                try res.send();
-            }
-            // api
-            else {
-                const post = POST{
-                    .env = env,
-                    .req = req,
-                    .res = &res,
-                    .logged_in = logged_in,
-                };
-                if (try post.handle()) {} else {
-                    try res.write("<p>[POST] {s}</p>", .{req.target});
-                }
+        try write_end(&res);
+        try res.send();
+    }
+    // api
+    else {
+        const post = POST{
+            .env = env,
+            .req = req,
+            .res = &res,
+            .logged_in = logged_in,
+        };
+        if (try post.handle()) {} else {
+            try res.write("<p>[POST] {s}</p>", .{req.target});
+        }
 
-                if (!res.has_header("Location")) {
-                    if (req.get_header("Referer")) |ref| {
-                        try res.redirect(ref);
-                    } else {
-                        try res.redirect("/");
-                    }
-                }
-                try res.send();
+        if (!res.has_header("Location")) {
+            if (req.get_header("Referer")) |ref| {
+                try res.redirect(ref);
+            } else {
+                try res.redirect("/");
             }
         }
+        try res.send();
     }
 }