change colors

[chirp] / src / main.zig

diff --git a/src/main.zig b/src/main.zig
index 0b22dbb6a47a1a8d046cac4000461d2813c3922c..460ea4cbb9319e18d4cc8b77d1e16c6bb176481c 100644 (file)
--- a/src/main.zig
+++ b/src/main.zig
@@ -6,18 +6,34 @@ const http = @import("http");
 // db {{{
 
 const Db = struct {
 // db {{{
 
 const Db = struct {

-    fn users(txn: lmdb.Txn) !db.Db(UserId, User) {
-        return try db.Db(UserId, User).init(txn, "users");
-    }
-    fn user_ids(txn: lmdb.Txn) !db.Db(Username, UserId) {
-        return try db.Db(Username, UserId).init(txn, "user_ids");
-    }
-    fn sessions(txn: lmdb.Txn) !db.Db(SessionToken, UserId) {
-        return try db.Db(SessionToken, UserId).init(txn, "sessions");
-    }
-    fn posts(txn: lmdb.Txn) !db.Db(PostId, Post) {
-        return try db.Db(PostId, Post).init(txn, "posts");
+    pub fn init(env: lmdb.Env) !void {
+        const txn = try env.txn();
+        const dbi = try txn.dbi(null);
+        if (try dbi.has(1001)) {
+            users = try dbi.get(1001, @TypeOf(users));
+        } else {
+            users = try @TypeOf(users).init(txn);
+        }
+        if (try dbi.has(1002)) {
+            user_ids = try dbi.get(1002, @TypeOf(user_ids));
+        } else {
+            user_ids = try @TypeOf(user_ids).init(txn);
+        }
+        if (try dbi.has(1003)) {
+            sessions = try dbi.get(1003, @TypeOf(sessions));
+        } else {
+            sessions = try @TypeOf(sessions).init(txn);
+        }
+        if (try dbi.has(1004)) {
+            posts = try dbi.get(1004, @TypeOf(posts));
+        } else {
+            posts = try @TypeOf(posts).init(txn);
+        }

     }
     }

+    var users: UserList = undefined;
+    var user_ids: UsernameList = undefined;
+    var sessions: SessionList = undefined;
+    var posts: PostList = undefined;

 };
 
 // }}}
 };
 
 // }}}


@@ -29,10 +45,13 @@ const User = struct {
     id: UserId,
     name: Username,
     display_name: DisplayName,
     id: UserId,
     name: Username,
     display_name: DisplayName,

+    description: UserDescription,

     password_hash: PasswordHash,
     password_hash: PasswordHash,

-    posts: PostList,
-    following: UserList,
-    followers: UserList,
+
+    posts: PostSet,
+
+    following: UserSet,
+    followers: UserSet,

 
     post_lists: PostListList,
     feeds: UserListList,
 
     post_lists: PostListList,
     feeds: UserListList,


@@ -49,19 +68,19 @@ const Post = struct {
     upvotes: u64 = 0,
     downvotes: u64 = 0,
     votes: VoteList,
     upvotes: u64 = 0,
     downvotes: u64 = 0,
     votes: VoteList,

-    comments: PostList,
-    quotes: PostList,
+    comments: PostSet,
+    quotes: PostSet,

 
     text: PostText,
 };
 
 const SavedPostList = struct {
     name: Name,
 
     text: PostText,
 };
 
 const SavedPostList = struct {
     name: Name,

-    list: PostList,
+    list: PostSet,

 };
 const SavedUserList = struct {
     name: Name,
 };
 const SavedUserList = struct {
     name: Name,

-    list: UserList,
+    list: UserSet,

 };
 
 const Vote = struct {
 };
 
 const Vote = struct {


@@ -82,23 +101,28 @@ const PostId = enum(u64) { _ };
 const Timestamp = i64;
 const Username = std.BoundedArray(u8, 32);
 const DisplayName = std.BoundedArray(u8, 64);
 const Timestamp = i64;
 const Username = std.BoundedArray(u8, 32);
 const DisplayName = std.BoundedArray(u8, 64);

+const UserDescription = std.BoundedArray(u8, 1024);

 const PasswordHash = std.BoundedArray(u8, 128);
 const SessionToken = u64;
 const CookieValue = std.BoundedArray(u8, 128);
 const PostText = std.BoundedArray(u8, 1024);
 const PasswordHash = std.BoundedArray(u8, 128);
 const SessionToken = u64;
 const CookieValue = std.BoundedArray(u8, 128);
 const PostText = std.BoundedArray(u8, 1024);

-const PostList = db.Set(PostId);
-const UserList = db.Set(UserId);
+const PostSet = db.Set(PostId);
+const UserSet = db.Set(UserId);
+const PostList = db.SetList(PostId, Post);
+const UserList = db.SetList(UserId, User);
+const UsernameList = db.SetList(Username, UserId);
+const SessionList = db.SetList(SessionToken, UserId);

 const VoteList = db.SetList(UserId, Vote);
 const PostListList = db.List(SavedPostList);
 const UserListList = db.List(SavedUserList);
 
 fn parse_enum(comptime E: type, buf: []const u8, base: u8) !E {
 const VoteList = db.SetList(UserId, Vote);
 const PostListList = db.List(SavedPostList);
 const UserListList = db.List(SavedUserList);
 
 fn parse_enum(comptime E: type, buf: []const u8, base: u8) !E {

-    return @enumFromInt(try std.fmt.parseUnsigned(@typeInfo(E).Enum.tag_type, buf, base));
+    return @enumFromInt(try std.fmt.parseUnsigned(@typeInfo(E).@"enum".tag_type, buf, base));

 }
 
 // https://developer.mozilla.org/en-US/docs/Glossary/Percent-encoding
 }
 
 // https://developer.mozilla.org/en-US/docs/Glossary/Percent-encoding

-fn reencode(text: []const u8) !PostText {
-    var result = try PostText.init(0);
+fn reencode(comptime T: type, text: []const u8) !T {
+    var result = try T.init(0);

 
     const len = @min(text.len, 1024); // TODO: PostText length
 
 
     const len = @min(text.len, 1024); // TODO: PostText length
 


@@ -107,28 +131,19 @@ fn reencode(text: []const u8) !PostText {
         const c = text[idx];
         if (c == '+') {
             try result.append(' ');
         const c = text[idx];
         if (c == '+') {
             try result.append(' ');

-        } else if (c == '%') {
-            // special case of &#...
-            // assume only &#, no &#x
-            if (idx + 6 < text.len and std.mem.eql(u8, text[idx .. idx + 6], "%26%23")) {
-                const num_start = idx + 6;
-                var num_end = num_start;
-                while (num_end < text.len and std.ascii.isDigit(text[num_end])) {
-                    num_end += 1;
-                }
+        } else if (c == '%' and idx + 2 < text.len) {
+            const allow = &[_]u8{ 0x26, 0x23, 0x3b, 0x0a };

 
 

-                if (num_end + 2 < text.len and
-                    text[num_end] == '%' and
-                    text[num_end + 1] == '3' and
-                    std.ascii.toLower(text[num_end + 2]) == 'b')
-                {
-                    try std.fmt.format(result.writer(), "&#{s};", .{text[num_start..num_end]});
-                    idx = num_end + 2;
-                    continue;
-                }
+            const escaped_value = std.fmt.parseUnsigned(u8, text[idx + 1 .. idx + 3], 16) catch continue;
+
+            if (escaped_value == 0x0d) {
+                try std.fmt.format(result.writer(), "<br />", .{});
+            } else if (std.mem.indexOfScalar(u8, allow, escaped_value) != null) {
+                try std.fmt.format(result.writer(), "{c}", .{escaped_value});
+            } else {
+                try std.fmt.format(result.writer(), "&#x{x};", .{escaped_value});

             }
 
             }
 

-            try std.fmt.format(result.writer(), "&#x{s};", .{text[idx + 1 .. idx + 3]});

             idx += 2;
         } else {
             try result.append(c);
             idx += 2;
         } else {
             try result.append(c);


@@ -166,18 +181,20 @@ fn decode(text: []const u8) !std.BoundedArray(u8, 1024) {
 }
 
 const Chirp = struct {
 }
 
 const Chirp = struct {

+    const PostsPerPage = 10;
+    const UsersPerPage = 10;
+    var HashBuffer = std.mem.zeroes([1024 * 1024 * 50]u8);
+

     pub fn hash_password(password: []const u8) !PasswordHash {
         var hash_buffer = try PasswordHash.init(128);
 
         // TODO: choose buffer size
     pub fn hash_password(password: []const u8) !PasswordHash {
         var hash_buffer = try PasswordHash.init(128);
 
         // TODO: choose buffer size

-        // TODO: dont allocate on stack, maybe zero memory?
-        var buffer: [1024 * 10]u8 = undefined;
-        var alloc = std.heap.FixedBufferAllocator.init(&buffer);
+        var alloc = std.heap.FixedBufferAllocator.init(&HashBuffer);

 
         // TODO: choose limits
         const result = try std.crypto.pwhash.argon2.strHash(password, .{
             .allocator = alloc.allocator(),
 
         // TODO: choose limits
         const result = try std.crypto.pwhash.argon2.strHash(password, .{
             .allocator = alloc.allocator(),

-            .params = std.crypto.pwhash.argon2.Params.fromLimits(1000, 1024),
+            .params = std.crypto.pwhash.argon2.Params.owasp_2id,

         }, hash_buffer.slice());
 
         try hash_buffer.resize(result.len);
         }, hash_buffer.slice());
 
         try hash_buffer.resize(result.len);


@@ -186,8 +203,7 @@ const Chirp = struct {
     }
 
     pub fn verify_password(password: []const u8, hash: PasswordHash) bool {
     }
 
     pub fn verify_password(password: []const u8, hash: PasswordHash) bool {

-        var buffer: [1024 * 10]u8 = undefined;
-        var alloc = std.heap.FixedBufferAllocator.init(&buffer);
+        var alloc = std.heap.FixedBufferAllocator.init(&HashBuffer);

 
         if (std.crypto.pwhash.argon2.strVerify(hash.constSlice(), password, .{
             .allocator = alloc.allocator(),
 
         if (std.crypto.pwhash.argon2.strVerify(hash.constSlice(), password, .{
             .allocator = alloc.allocator(),


@@ -208,27 +224,28 @@ const Chirp = struct {
             std.debug.print("error registering user: {}\n", .{err});
         };
 
             std.debug.print("error registering user: {}\n", .{err});
         };
 

-        const users = try Db.users(txn);
-        const user_ids = try Db.user_ids(txn);
+        var users = try Db.users.open(txn);
+        var user_ids = try Db.user_ids.open(txn);

 
         if (try user_ids.has(username_array)) {
             return false;
         } else {
 
         if (try user_ids.has(username_array)) {
             return false;
         } else {

-            const user_id = try db.Prng.gen(users.dbi, UserId);
+            const user_id = try db.Prng.gen(users.base.dbi, UserId);

 
 

-            try users.put(user_id, User{
+            try users.append(user_id, User{

                 .id = user_id,
                 .name = username_array,
                 .display_name = display_name,
                 .id = user_id,
                 .name = username_array,
                 .display_name = display_name,

+                .description = try UserDescription.init(0),

                 .password_hash = try hash_password(password),
                 .password_hash = try hash_password(password),

-                .posts = try PostList.init(txn),
-                .following = try UserList.init(txn),
-                .followers = try UserList.init(txn),
+                .posts = try PostSet.init(txn),
+                .following = try UserSet.init(txn),
+                .followers = try UserSet.init(txn),

                 .post_lists = try PostListList.init(txn),
                 .feeds = try UserListList.init(txn),
             });
 
                 .post_lists = try PostListList.init(txn),
                 .feeds = try UserListList.init(txn),
             });
 

-            try user_ids.put(username_array, user_id);
+            try user_ids.append(username_array, user_id);

 
             return true;
         }
 
             return true;
         }


@@ -244,17 +261,17 @@ const Chirp = struct {
         const txn = try env.txn();
         defer txn.commit() catch {};
 
         const txn = try env.txn();
         defer txn.commit() catch {};
 

-        const user_ids = try Db.user_ids(txn);
+        const user_ids = try Db.user_ids.open(txn);

         const user_id = try user_ids.get(username_array);
         std.debug.print("user logging in, id: {}\n", .{user_id});
 
         const user_id = try user_ids.get(username_array);
         std.debug.print("user logging in, id: {}\n", .{user_id});
 

-        const users = try Db.users(txn);
+        const users = try Db.users.open(txn);

         const user = try users.get(user_id);
 
         if (verify_password(password, user.password_hash)) {
         const user = try users.get(user_id);
 
         if (verify_password(password, user.password_hash)) {

-            const sessions = try Db.sessions(txn);
-            const session_token = try db.Prng.gen(sessions.dbi, SessionToken);
-            try sessions.put(session_token, user_id);
+            var sessions = try Db.sessions.open(txn);
+            const session_token = try db.Prng.gen(sessions.base.dbi, SessionToken);
+            try sessions.append(session_token, user_id);

             return session_token;
         } else {
             return error.IncorrectPassword;
             return session_token;
         } else {
             return error.IncorrectPassword;


@@ -265,11 +282,11 @@ const Chirp = struct {
         const txn = try env.txn();
         defer txn.commit() catch {};
 
         const txn = try env.txn();
         defer txn.commit() catch {};
 

-        const sessions = try Db.sessions(txn);
+        var sessions = try Db.sessions.open(txn);

         try sessions.del(session_token);
     }
 
         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) !PostId {
+    fn append_post(env: lmdb.Env, user_id: UserId, post_list: PostSet, parent_id: ?PostId, quote_id: ?PostId, text: []const u8) !PostId {

         var post_id: PostId = undefined;
 
         // TODO: do this in one commit
         var post_id: PostId = undefined;
 
         // TODO: do this in one commit


@@ -280,10 +297,10 @@ const Chirp = struct {
             txn = try env.txn();
             defer txn.commit() catch {};
 
             txn = try env.txn();
             defer txn.commit() catch {};
 

-            const posts = try Db.posts(txn);
+            const posts = try Db.posts.open(txn);

             post_id = try db.Prng.gen(posts.dbi, PostId);
 
             post_id = try db.Prng.gen(posts.dbi, PostId);
 

-            const decoded_text = try reencode(text);
+            const decoded_text = try reencode(PostText, text);

             try posts.put(post_id, Post{
                 .id = post_id,
                 .parent_id = parent_id,
             try posts.put(post_id, Post{
                 .id = post_id,
                 .parent_id = parent_id,


@@ -291,8 +308,8 @@ const Chirp = struct {
                 .user_id = user_id,
                 .time = std.time.timestamp(),
                 .votes = try VoteList.init(txn),
                 .user_id = user_id,
                 .time = std.time.timestamp(),
                 .votes = try VoteList.init(txn),

-                .comments = try PostList.init(txn),
-                .quotes = try PostList.init(txn),
+                .comments = try PostSet.init(txn),
+                .quotes = try PostSet.init(txn),

                 .text = decoded_text,
             });
         }
                 .text = decoded_text,
             });
         }


@@ -310,7 +327,7 @@ const Chirp = struct {
             txn = try env.txn();
             defer txn.commit() catch {};
 
             txn = try env.txn();
             defer txn.commit() catch {};
 

-            const posts = try Db.posts(txn);
+            const posts = try Db.posts.open(txn);

             const quote_post = try posts.get(quote_id.?);
             var quotes = try quote_post.quotes.open(txn);
             try quotes.append(post_id);
             const quote_post = try posts.get(quote_id.?);
             var quotes = try quote_post.quotes.open(txn);
             try quotes.append(post_id);


@@ -321,7 +338,7 @@ const Chirp = struct {
 
     fn post(env: lmdb.Env, user_id: UserId, text: []const u8) !void {
         var txn = try env.txn();
 
     fn post(env: lmdb.Env, user_id: UserId, text: []const u8) !void {
         var txn = try env.txn();

-        const users = try Db.users(txn);
+        const users = try Db.users.open(txn);

         const user = try users.get(user_id);
         txn.abort();
 
         const user = try users.get(user_id);
         txn.abort();
 


@@ -331,10 +348,10 @@ const Chirp = struct {
 
     fn comment(env: lmdb.Env, user_id: UserId, parent_post_id: PostId, text: []const u8) !void {
         var txn = try env.txn();
 
     fn comment(env: lmdb.Env, user_id: UserId, parent_post_id: PostId, text: []const u8) !void {
         var txn = try env.txn();

-        const users = try Db.users(txn);
+        const users = try Db.users.open(txn);

         const user = try users.get(user_id);
 
         const user = try users.get(user_id);
 

-        const posts = try Db.posts(txn);
+        const posts = try Db.posts.open(txn);

         const parent_post = try posts.get(parent_post_id);
         txn.abort();
 
         const parent_post = try posts.get(parent_post_id);
         txn.abort();
 


@@ -348,7 +365,7 @@ const Chirp = struct {
 
     fn quote(env: lmdb.Env, user_id: UserId, quote_post_id: PostId, text: []const u8) !void {
         var txn = try env.txn();
 
     fn quote(env: lmdb.Env, user_id: UserId, quote_post_id: PostId, text: []const u8) !void {
         var txn = try env.txn();

-        const users = try Db.users(txn);
+        const users = try Db.users.open(txn);

         const user = try users.get(user_id);
         txn.abort();
 
         const user = try users.get(user_id);
         txn.abort();
 


@@ -360,7 +377,7 @@ const Chirp = struct {
         const txn = try env.txn();
         defer txn.commit() catch {};
 
         const txn = try env.txn();
         defer txn.commit() catch {};
 

-        const posts = try Db.posts(txn);
+        const posts = try Db.posts.open(txn);

 
         var p = try posts.get(post_id);
         var votes_view = try p.votes.open(txn);
 
         var p = try posts.get(post_id);
         var votes_view = try p.votes.open(txn);


@@ -400,7 +417,7 @@ const Chirp = struct {
         const txn = try env.txn();
         defer txn.commit() catch {};
 
         const txn = try env.txn();
         defer txn.commit() catch {};
 

-        const users = try Db.users(txn);
+        const users = try Db.users.open(txn);

 
         const user = try users.get(user_id);
         const user_to_follow = try users.get(user_id_to_follow);
 
         const user = try users.get(user_id);
         const user_to_follow = try users.get(user_id_to_follow);


@@ -423,7 +440,7 @@ const Chirp = struct {
         const txn = try env.txn();
         defer txn.abort();
 
         const txn = try env.txn();
         defer txn.abort();
 

-        const sessions = try Db.sessions(txn);
+        const sessions = try Db.sessions.open(txn);

 
         return try sessions.get(session_token);
     }
 
         return try sessions.get(session_token);
     }


@@ -432,7 +449,7 @@ const Chirp = struct {
         const txn = try env.txn();
         defer txn.abort();
 
         const txn = try env.txn();
         defer txn.abort();
 

-        const users = try Db.users(txn);
+        const users = try Db.users.open(txn);

         return try users.get(user_id);
     }
 };
         return try users.get(user_id);
     }
 };


@@ -440,15 +457,86 @@ const Chirp = struct {
 // }}}
 
 // html {{{
 // }}}
 
 // html {{{

+pub fn Paginate(comptime T: type) type {
+    return struct {
+        const Self = @This();
+
+        const IterateResult = T.Base.View.Iterator.Result;
+
+        res: *http.Response,
+        view: T.View,
+        per_page: u64,
+
+        it: T.Base.View.Iterator,
+        starting_idx: ?T.Base.Key,
+        count: u64 = 0,
+
+        pub fn init(res: *http.Response, view: T.View, per_page: u64) !Self {
+            var it = view.reverse_iterator();
+            if (res.req.get_param("starting_at")) |starting_at_str| {
+                it.idx = try parse_enum(T.Base.Key, starting_at_str, 16);
+            }
+
+            return .{
+                .res = res,
+                .view = view,
+                .per_page = per_page,
+                .it = it,
+                .starting_idx = it.idx,
+            };
+        }
+        pub fn next(self: *Self) ?IterateResult {
+            if (self.it.next()) |kv| {
+                if (self.count < self.per_page) {
+                    self.count += 1;
+                    return kv;
+                }
+            }
+            return null;
+        }
+        pub fn write_navigation(self: *Self) !void {
+            const next_idx = self.it.next();
+
+            if (self.view.base.head.last != self.starting_idx) {
+                var prev_it = self.view.iterator();
+                prev_it.idx = self.starting_idx.?;
+                var oldest_idx = self.starting_idx.?;
+
+                var count: u64 = 0;
+                while (prev_it.next()) |kv| {
+                    oldest_idx = kv.key;
+
+                    if (count > self.per_page) {
+                        break;
+                    } else {
+                        count += 1;
+                    }
+                }
+
+                try self.res.write("<a href=\"{s}?starting_at={x}\">Prev</a> ", .{ self.res.req.target, @intFromEnum(oldest_idx) });
+            }
+
+            if (next_idx) |kv| {
+                try self.res.write("<a href=\"{s}?starting_at={x}\">Next</a>", .{ self.res.req.target, @intFromEnum(kv.key) });
+            }
+        }
+    };
+}

 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))) {
 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))) {

-            .Struct => {
-                try res.write("<input ", .{});
-                try res.write(input[0], input[1]);
-                try res.write(" />", .{});
+            .@"struct" => |s| {
+                if (s.fields.len == 3) {
+                    try res.write("<{s} ", .{input[0]});
+                    try res.write(input[1], input[2]);
+                    try res.write("></{s}>", .{input[0]});
+                } else {
+                    try res.write("<input ", .{});
+                    try res.write(input[0], input[1]);
+                    try res.write(" />", .{});
+                }

             },
             else => {
                 try res.write("<input ", .{});
             },
             else => {
                 try res.write("<input ", .{});


@@ -526,10 +614,18 @@ fn write_start(res: *http.Response) !void {
         \\<html>
         \\<head>
         \\<link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>&#128035;</text></svg>">
         \\<html>
         \\<head>
         \\<link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>&#128035;</text></svg>">

+        \\<meta name="viewport" content="width=device-width, initial-scale=1.0" />

         \\<style>
         \\<style>

+        \\  :root {
+        \\    color-scheme: light dark;
+        \\  }

         \\  form {
         \\    display: inline-block;
         \\  }
         \\  form {
         \\    display: inline-block;
         \\  }

+        \\  body {
+        \\    margin:40px auto;max-width:650px;line-height:1.6;font-size:18px;padding:0 10px;
+        \\  }
+        \\  h1,h2,h3{line-height:1.2}

         \\</style>
         \\</head>
         \\<body>
         \\</style>
         \\</head>
         \\<body>


@@ -539,18 +635,18 @@ fn write_end(res: *http.Response) !void {
     try res.write("</body></html>", .{});
 }
 fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: PostId, options: struct { recurse: u8 = 0, show_comment_field: bool = false }) !void {
     try res.write("</body></html>", .{});
 }
 fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: PostId, options: struct { recurse: u8 = 0, show_comment_field: bool = false }) !void {

-    const posts = try Db.posts(txn);
+    const posts = try Db.posts.open(txn);

     const post = posts.get(post_id) catch {
         res.redirect("/") catch {};
         return;
     };
     const post = posts.get(post_id) catch {
         res.redirect("/") catch {};
         return;
     };

-    const users = try Db.users(txn);
+    const users = try Db.users.open(txn);

     const user = try users.get(post.user_id);
 
     try res.write(
     const user = try users.get(post.user_id);
 
     try res.write(

-        \\<div>
+        \\<div id="{x}">

         \\<span><a href="/user/{s}">{s}</a>
         \\<span><a href="/user/{s}">{s}</a>

-    , .{ user.name.constSlice(), user.display_name.constSlice() });
+    , .{ @intFromEnum(post_id), user.name.constSlice(), user.display_name.constSlice() });

     if (post.parent_id) |id| {
         try res.write(" <a href=\"/post/{x}\">..</a>", .{@intFromEnum(id)});
     }
     if (post.parent_id) |id| {
         try res.write(" <a href=\"/post/{x}\">..</a>", .{@intFromEnum(id)});
     }


@@ -559,6 +655,17 @@ fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: Po
         \\<span>{s}</span><br />
     , .{ time_str(post.time).constSlice(), post.text.constSlice() });
 
         \\<span>{s}</span><br />
     , .{ time_str(post.time).constSlice(), post.text.constSlice() });
 

+    if (logged_in != null and post.user_id == logged_in.?.user.id) {
+        // Votes
+        try res.write(
+            \\<small>
+            \\<a href="/upvotes/{0x}">{1} Upvotes</a>
+            \\<a href="/downvotes/{0x}">{2} Downvotes</a>
+            \\</small>
+            \\<br />
+        , .{ @intFromEnum(post_id), post.upvotes, post.downvotes });
+    }
+

     if (post.quote_id) |quote_id| {
         try res.write("<div style=\"border: 1px solid black;\">", .{});
         if (options.recurse > 0) {
     if (post.quote_id) |quote_id| {
         try res.write("<div style=\"border: 1px solid black;\">", .{});
         if (options.recurse > 0) {


@@ -618,12 +725,13 @@ fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: Po
         // TODO: mark lists that already contain post
         while (it.next()) |kv| {
             const name = kv.val.name;
         // TODO: mark lists that already contain post
         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() });
+            const id = kv.val.list.base.idx.?;
+            const list_view = try kv.val.list.open(txn);
+            try res.write("<option value=\"{x}\">{s}{s}</option>", .{ id, name.constSlice(), if (list_view.has(post_id) catch false) " *" else "" });

         }
         try res.write("</select>", .{});
         }
         try res.write("</select>", .{});

-        try res.write("<input type=\"hidden\" name=\"post_id\" value=\"{x}\"></input>", .{@intFromEnum(post_id)});
-        try res.write("<input type=\"submit\" value=\"Save\"></input>", .{});
+        try res.write("<input type=\"hidden\" name=\"post_id\" value=\"{x}\" />", .{@intFromEnum(post_id)});
+        try res.write("<input type=\"submit\" value=\"Save\" />", .{});

         try res.write("</form>", .{});
     }
 
         try res.write("</form>", .{});
     }
 


@@ -633,7 +741,7 @@ fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: Po
         try res.write("<br /><br />", .{});
         try html_form(res, "/comment", .{
             .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },
         try res.write("<br /><br />", .{});
         try html_form(res, "/comment", .{
             .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },

-            "type=\"text\" name=\"text\" placeholder=\"Text\"",
+            .{ "textarea", "type=\"text\" name=\"text\" placeholder=\"Text\"", .{} },

             "type=\"submit\" value=\"Comment\"",
         });
         try res.write("<br />", .{});
             "type=\"submit\" value=\"Comment\"",
         });
         try res.write("<br />", .{});


@@ -649,7 +757,7 @@ fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: Po
         var it = comments_view.iterator();
         var count: u8 = 0;
         while (it.next()) |comment_id| {
         var it = comments_view.iterator();
         var count: u8 = 0;
         while (it.next()) |comment_id| {

-            try write_post(res, txn, logged_in, comment_id, .{ .recurse = options.recurse - 1 });
+            try write_post(res, txn, logged_in, comment_id.key, .{ .recurse = options.recurse - 1 });

             try res.write("<br />", .{});
             if (options.recurse == 1) {
                 count += 1;
             try res.write("<br />", .{});
             if (options.recurse == 1) {
                 count += 1;


@@ -681,12 +789,12 @@ fn write_profile(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user: Us
         // follow/unfollow
         if (try followers.has(login.user.id)) {
             try html_form(res, "/follow", .{
         // 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=\"hidden\" name=\"user_id\" value=\"{x}\"", .{@intFromEnum(user.id)} },

                 \\type="submit" value="Unfollow"
             });
         } else {
             try html_form(res, "/follow", .{
                 \\type="submit" value="Unfollow"
             });
         } else {
             try html_form(res, "/follow", .{

-                .{ "type=\"hidden\" name=\"user.id\" value=\"{x}\"", .{@intFromEnum(user.id)} },
+                .{ "type=\"hidden\" name=\"user_id\" value=\"{x}\"", .{@intFromEnum(user.id)} },

                 \\type="submit" value="Follow"
             });
         }
                 \\type="submit" value="Follow"
             });
         }


@@ -698,12 +806,13 @@ fn write_profile(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user: Us
         var it = feeds_view.iterator();
         while (it.next()) |kv| {
             const name = kv.val.name;
         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() });
+            const id = kv.val.list.base.idx.?;
+            const list_view = try kv.val.list.open(txn);
+            try res.write("<option value=\"{x}\">{s}{s}</option>", .{ id, name.constSlice(), if (list_view.has(user.id) catch false) " *" else "" });

         }
         try res.write("</select>", .{});
         }
         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("<input type=\"hidden\" name=\"user_id\" value=\"{x}\" />", .{@intFromEnum(user.id)});
+        try res.write("<input type=\"submit\" value=\"Add to feed\" />", .{});

         try res.write("</form>", .{});
     }
     try res.write(
         try res.write("</form>", .{});
     }
     try res.write(


@@ -732,43 +841,60 @@ fn write_profile(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user: Us
         , .{});
     }
 
         , .{});
     }
 

+    if (user.description.len > 0) {
+        try res.write(
+            \\<div style="padding-left: 5px; border-left: 1px solid grey;">
+            // \\&#x00AB; {s} &#x00BB;
+            \\<i>{s}</i>
+            \\</div>
+        , .{user.description.constSlice()});
+    }
+

     try res.write("<br />", .{});
 }
     try res.write("<br />", .{});
 }

-fn write_posts(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_list: PostList, options: struct {
+fn write_posts(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_list: PostSet, options: struct {

     show_posts: bool,
     show_quotes: bool,
     show_comments: bool,
 }) !void {
     const posts_view = try post_list.open(txn);
 
     show_posts: bool,
     show_quotes: bool,
     show_comments: bool,
 }) !void {
     const posts_view = try post_list.open(txn);
 

-    var it = posts_view.reverse_iterator();
-    while (it.next()) |post_id| {
-        const posts = try Db.posts(txn);
-        const post = try posts.get(post_id);
+    var paginate = try Paginate(PostSet).init(res, posts_view, Chirp.PostsPerPage);
+
+    while (paginate.next()) |post_id| {
+        const posts = try Db.posts.open(txn);
+        const post = try posts.get(post_id.key);

         if ((options.show_posts and (post.parent_id == null and post.quote_id == null)) or
             (options.show_quotes and (post.quote_id != null)) or
             (options.show_comments and (post.parent_id != null)))
         {
         if ((options.show_posts and (post.parent_id == null and post.quote_id == null)) or
             (options.show_quotes and (post.quote_id != null)) or
             (options.show_comments and (post.parent_id != null)))
         {

-            try write_post(res, txn, logged_in, post_id, .{ .recurse = 1 });
+            try write_post(res, txn, logged_in, post_id.key, .{ .recurse = 1 });

             try res.write("<br />", .{});
         }
     }
             try res.write("<br />", .{});
         }
     }

+
+    try paginate.write_navigation();

 }
 }

-fn write_timeline(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user_list: UserList) !void {
-    const users = try Db.users(txn);
-    const posts = try Db.posts(txn);
+fn write_timeline(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user_list: UserSet) !void {
+    // TODO: paginate
+    const users = try Db.users.open(txn);
+    const posts = try Db.posts.open(txn);

 
     var newest_post_ids = try std.BoundedArray(PostId, 10).init(0); // TODO: TimelinePostsCount
     var prev_newest_post: ?Post = null;
 
     const following = try user_list.open(txn);
 
     var newest_post_ids = try std.BoundedArray(PostId, 10).init(0); // TODO: TimelinePostsCount
     var prev_newest_post: ?Post = null;
 
     const following = try user_list.open(txn);

+    if (following.len() == 0) {
+        try res.write("Empty timeline (no users)", .{});
+        return;
+    }

 
     while (true) {
         var newest_post: ?Post = null;
 
         var following_it = following.iterator();
         while (following_it.next()) |following_id| {
 
     while (true) {
         var newest_post: ?Post = null;
 
         var following_it = following.iterator();
         while (following_it.next()) |following_id| {

-            const followed_user = try users.get(following_id);
+            const followed_user = try users.get(following_id.key);

             const followed_posts = try followed_user.posts.open(txn);
 
             if (followed_posts.len() == 0) {
             const followed_posts = try followed_user.posts.open(txn);
 
             if (followed_posts.len() == 0) {


@@ -777,7 +903,7 @@ fn write_timeline(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user_li
 
             var followed_posts_it = followed_posts.reverse_iterator();
             while (followed_posts_it.next()) |followed_post_id| {
 
             var followed_posts_it = followed_posts.reverse_iterator();
             while (followed_posts_it.next()) |followed_post_id| {

-                const p = try posts.get(followed_post_id);
+                const p = try posts.get(followed_post_id.key);

 
                 if ((prev_newest_post == null or p.time < prev_newest_post.?.time) and (newest_post == null or newest_post.?.time < p.time)) {
                     newest_post = p;
 
                 if ((prev_newest_post == null or p.time < prev_newest_post.?.time) and (newest_post == null or newest_post.?.time < p.time)) {
                     newest_post = p;


@@ -798,6 +924,48 @@ fn write_timeline(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user_li
         try res.write("<br />", .{});
     }
 }
         try res.write("<br />", .{});
     }
 }

+fn write_frontpage(res: *http.Response, txn: lmdb.Txn) !void {
+    const posts = try Db.posts.open(txn);
+    var counter: u64 = 0;
+    var it = try posts.reverse_iterator();
+    while (it.next()) |p| {
+        if (p.val.parent_id == null and p.val.quote_id == null) {
+            try write_post(res, txn, null, p.key, .{ .recurse = 1 });
+            counter += 1;
+        }
+
+        if (counter >= 10) break;
+    }
+}
+fn write_user(res: *http.Response, txn: lmdb.Txn, user_id: UserId) !void {
+    const users = try Db.users.open(txn);
+    const user = try users.get(user_id);
+    try res.write(
+        \\<a href="/user/{s}">{s}</a>
+    , .{ user.name.constSlice(), user.display_name.constSlice() });
+}
+fn write_votes(res: *http.Response, txn: lmdb.Txn, votes: VoteList, options: struct {
+    show_upvotes: bool = true,
+    show_downvotes: bool = true,
+}) !void {
+    const votes_view = try votes.open(txn);
+
+    var paginate = try Paginate(VoteList).init(res, votes_view, Chirp.UsersPerPage);
+
+    while (paginate.next()) |kv| {
+        const user_id = kv.key;
+        const vote = kv.val;
+
+        if ((options.show_upvotes and vote.kind == .Up) or
+            (options.show_downvotes and vote.kind == .Down))
+        {
+            try write_user(res, txn, user_id);
+            try res.write(" <small>{s}</small><br />", .{time_str(vote.time).constSlice()});
+        }
+    }
+
+    try paginate.write_navigation();
+}

 fn check_login(env: lmdb.Env, req: http.Request, res: *http.Response) !?Login {
     var result: ?Login = null;
 
 fn check_login(env: lmdb.Env, req: http.Request, res: *http.Response) !?Login {
     var result: ?Login = null;
 


@@ -810,7 +978,7 @@ fn check_login(env: lmdb.Env, req: http.Request, res: *http.Response) !?Login {
             if (Chirp.get_session_user_id(env, session_token) catch null) |user_id| {
                 const txn = try env.txn();
                 defer txn.abort();
             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);
+                const users = try Db.users.open(txn);

 
                 result = .{
                     .user = try users.get(user_id),
 
                 result = .{
                     .user = try users.get(user_id),


@@ -844,20 +1012,20 @@ const GET = struct {
 
     fn handle(self: Self) !bool {
         const ti = @typeInfo(Self);
 
     fn handle(self: Self) !bool {
         const ti = @typeInfo(Self);

-        inline for (ti.Struct.decls) |f_decl| {
+        inline for (ti.@"struct".decls) |f_decl| {

             const has_arg = f_decl.name.len > 1 and f_decl.name[f_decl.name.len - 1] == '/';
             const match = if (has_arg) std.mem.startsWith(u8, self.req.target, f_decl.name) else std.mem.eql(u8, self.req.target, f_decl.name);
 
             if (match) {
                 const f = @field(Self, f_decl.name);
                 const fi = @typeInfo(@TypeOf(f));
             const has_arg = f_decl.name.len > 1 and f_decl.name[f_decl.name.len - 1] == '/';
             const match = if (has_arg) std.mem.startsWith(u8, self.req.target, f_decl.name) else std.mem.eql(u8, self.req.target, f_decl.name);
 
             if (match) {
                 const f = @field(Self, f_decl.name);
                 const fi = @typeInfo(@TypeOf(f));

-                if (fi.Fn.params.len == 1) {
+                if (fi.@"fn".params.len == 1) {

                     try @call(.auto, f, .{self});
                 } else {
                     try @call(.auto, f, .{self});
                 } else {

-                    const arg_type = fi.Fn.params[1].type.?;
+                    const arg_type = fi.@"fn".params[1].type.?;

                     const arg_info = @typeInfo(arg_type);
                     var arg: arg_type = undefined;
                     const arg_info = @typeInfo(arg_type);
                     var arg: arg_type = undefined;

-                    const field = arg_info.Struct.fields[0];
+                    const field = arg_info.@"struct".fields[0];

                     if (self.req.target.len <= f_decl.name.len) {
                         return error.NoArgProvided;
                     }
                     if (self.req.target.len <= f_decl.name.len) {
                         return error.NoArgProvided;
                     }


@@ -865,10 +1033,10 @@ const GET = struct {
                     const field_ti = @typeInfo(field.type);
                     switch (field_ti) {
                         // TODO: maybe handle BoundedArray?
                     const field_ti = @typeInfo(field.type);
                     switch (field_ti) {
                         // TODO: maybe handle BoundedArray?

-                        .Int => {
+                        .int => {

                             @field(arg, field.name) = try std.fmt.parseUnsigned(field.type, str, 16);
                         },
                             @field(arg, field.name) = try std.fmt.parseUnsigned(field.type, str, 16);
                         },

-                        .Enum => {
+                        .@"enum" => {

                             @field(arg, field.name) = try parse_enum(field.type, str, 16);
                         },
                         else => {
                             @field(arg, field.name) = try parse_enum(field.type, str, 16);
                         },
                         else => {


@@ -885,9 +1053,9 @@ const GET = struct {
     }
 
     pub fn @"/user/"(self: Self, args: struct { username: []const u8 }) !void {
     }
 
     pub fn @"/user/"(self: Self, args: struct { username: []const u8 }) !void {

-        const user_ids = try Db.user_ids(self.txn);
+        const user_ids = try Db.user_ids.open(self.txn);

         if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
         if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {

-            const users = try Db.users(self.txn);
+            const users = try Db.users.open(self.txn);

             const user = try users.get(user_id);
 
             try write_profile(self.res, self.txn, self.logged_in, user);
             const user = try users.get(user_id);
 
             try write_profile(self.res, self.txn, self.logged_in, user);


@@ -904,9 +1072,9 @@ const GET = struct {
         }
     }
     pub fn @"/comments/"(self: Self, args: struct { username: []const u8 }) !void {
         }
     }
     pub fn @"/comments/"(self: Self, args: struct { username: []const u8 }) !void {

-        const user_ids = try Db.user_ids(self.txn);
+        const user_ids = try Db.user_ids.open(self.txn);

         if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
         if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {

-            const users = try Db.users(self.txn);
+            const users = try Db.users.open(self.txn);

             const user = try users.get(user_id);
 
             try write_profile(self.res, self.txn, self.logged_in, user);
             const user = try users.get(user_id);
 
             try write_profile(self.res, self.txn, self.logged_in, user);


@@ -923,9 +1091,9 @@ const GET = struct {
         }
     }
     pub fn @"/quotes/"(self: Self, args: struct { username: []const u8 }) !void {
         }
     }
     pub fn @"/quotes/"(self: Self, args: struct { username: []const u8 }) !void {

-        const user_ids = try Db.user_ids(self.txn);
+        const user_ids = try Db.user_ids.open(self.txn);

         if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
         if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {

-            const users = try Db.users(self.txn);
+            const users = try Db.users.open(self.txn);

             const user = try users.get(user_id);
 
             try write_profile(self.res, self.txn, self.logged_in, user);
             const user = try users.get(user_id);
 
             try write_profile(self.res, self.txn, self.logged_in, user);


@@ -942,9 +1110,9 @@ const GET = struct {
         }
     }
     pub fn @"/all/"(self: Self, args: struct { username: []const u8 }) !void {
         }
     }
     pub fn @"/all/"(self: Self, args: struct { username: []const u8 }) !void {

-        const user_ids = try Db.user_ids(self.txn);
+        const user_ids = try Db.user_ids.open(self.txn);

         if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
         if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {

-            const users = try Db.users(self.txn);
+            const users = try Db.users.open(self.txn);

             const user = try users.get(user_id);
 
             try write_profile(self.res, self.txn, self.logged_in, user);
             const user = try users.get(user_id);
 
             try write_profile(self.res, self.txn, self.logged_in, user);


@@ -961,25 +1129,28 @@ const GET = struct {
         }
     }
     pub fn @"/following/"(self: Self, args: struct { username: []const u8 }) !void {
         }
     }
     pub fn @"/following/"(self: Self, args: struct { username: []const u8 }) !void {

-        const user_ids = try Db.user_ids(self.txn);
+        const user_ids = try Db.user_ids.open(self.txn);

         if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
         if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {

-            const users = try Db.users(self.txn);
+            const users = try Db.users.open(self.txn);

             const user = try users.get(user_id);
 
             const user = try users.get(user_id);
 

-            const following = try user.following.open(self.txn);
-            var it = following.iterator();
+            const following_view = try user.following.open(self.txn);
+
+            var paginate = try Paginate(UserSet).init(self.res, following_view, Chirp.UsersPerPage);

 
             try self.res.write(
                 \\<h2><a href="/user/{s}">{s}</a> follows:</h2>
             , .{ user.name.constSlice(), user.display_name.constSlice() });
 
 
             try self.res.write(
                 \\<h2><a href="/user/{s}">{s}</a> follows:</h2>
             , .{ user.name.constSlice(), user.display_name.constSlice() });
 

-            while (it.next()) |following_id| {
-                const following_user = try users.get(following_id);
+            while (paginate.next()) |following_id| {
+                const following_user = try users.get(following_id.key);

 
                 try self.res.write(
                     \\<a href="/user/{s}">{s}</a><br />
                 , .{ following_user.name.constSlice(), following_user.display_name.constSlice() });
             }
 
                 try self.res.write(
                     \\<a href="/user/{s}">{s}</a><br />
                 , .{ following_user.name.constSlice(), following_user.display_name.constSlice() });
             }

+
+            try paginate.write_navigation();

         } else |err| {
             try self.res.write(
                 \\<p>User not found [{}]</p>
         } else |err| {
             try self.res.write(
                 \\<p>User not found [{}]</p>


@@ -987,25 +1158,27 @@ const GET = struct {
         }
     }
     pub fn @"/followers/"(self: Self, args: struct { username: []const u8 }) !void {
         }
     }
     pub fn @"/followers/"(self: Self, args: struct { username: []const u8 }) !void {

-        const user_ids = try Db.user_ids(self.txn);
+        const user_ids = try Db.user_ids.open(self.txn);

         if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
         if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {

-            const users = try Db.users(self.txn);
+            const users = try Db.users.open(self.txn);

             const user = try users.get(user_id);
 
             const user = try users.get(user_id);
 

-            const followers = try user.followers.open(self.txn);
-            var it = followers.iterator();
+            const followers_view = try user.followers.open(self.txn);
+            var paginate = try Paginate(UserSet).init(self.res, followers_view, Chirp.UsersPerPage);

 
             try self.res.write(
                 \\<h2><a href="/user/{s}">{s}</a> followers:</h2>
             , .{ user.name.constSlice(), user.display_name.constSlice() });
 
 
             try self.res.write(
                 \\<h2><a href="/user/{s}">{s}</a> followers:</h2>
             , .{ user.name.constSlice(), user.display_name.constSlice() });
 

-            while (it.next()) |follower_id| {
-                const follower_user = try users.get(follower_id);
+            while (paginate.next()) |follower_id| {
+                const follower_user = try users.get(follower_id.key);

 
                 try self.res.write(
                     \\<a href="/user/{s}">{s}</a><br />
                 , .{ follower_user.name.constSlice(), follower_user.display_name.constSlice() });
             }
 
                 try self.res.write(
                     \\<a href="/user/{s}">{s}</a><br />
                 , .{ follower_user.name.constSlice(), follower_user.display_name.constSlice() });
             }

+
+            try paginate.write_navigation();

         } else |err| {
             try self.res.write(
                 \\<p>User not found [{}]</p>
         } else |err| {
             try self.res.write(
                 \\<p>User not found [{}]</p>


@@ -1018,8 +1191,14 @@ const GET = struct {
             .show_comment_field = true,
         });
     }
             .show_comment_field = true,
         });
     }

+    pub fn @"/upvotes/"(self: Self, args: struct { post_id: PostId }) !void {
+        const posts = try Db.posts.open(self.txn);
+        const post = try posts.get(args.post_id);
+        try self.res.write("{} upvotes:<br />", .{post.upvotes});
+        try write_votes(self.res, self.txn, post.votes, .{});
+    }

     pub fn @"/quoted/"(self: Self, args: struct { post_id: PostId }) !void {
     pub fn @"/quoted/"(self: Self, args: struct { post_id: PostId }) !void {

-        const posts = try Db.posts(self.txn);
+        const posts = try Db.posts.open(self.txn);

         const post = try posts.get(args.post_id);
 
         const referer = if (self.req.get_header("Referer")) |ref| ref else self.req.target;
         const post = try posts.get(args.post_id);
 
         const referer = if (self.req.get_header("Referer")) |ref| ref else self.req.target;


@@ -1028,21 +1207,21 @@ const GET = struct {
             try html_form(self.res, "/quote", .{
                 .{ "type=\"hidden\" name=\"referer\" value=\"{s}\"", .{referer} },
                 .{ "type=\"hidden\" name=\"post_id\" value=\"{x}\"", .{@intFromEnum(post.id)} },
             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\"",
+                .{ "textarea", "type=\"text\" name=\"text\" placeholder=\"Text\" autofocus", .{} },

                 "type=\"submit\" value=\"Quote\"",
             });
             try self.res.write("<br />", .{});
         }
 
                 "type=\"submit\" value=\"Quote\"",
             });
             try self.res.write("<br />", .{});
         }
 

-        const quotes_view = try post.quotes.open(self.txn);
-        var it = quotes_view.iterator();
-        while (it.next()) |quote_id| {
-            try write_post(self.res, self.txn, self.logged_in, quote_id, .{ .recurse = 1 });
-            try self.res.write("<br />", .{});
-        }
+        // TODO: show all bc this only contains quotes?
+        try write_posts(self.res, self.txn, self.logged_in, post.quotes, .{
+            .show_posts = false,
+            .show_quotes = true,
+            .show_comments = false,
+        });

     }
     }

-    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 @"/list/"(self: Self, args: struct { list_id: PostSet.Base.Index }) !void {
+        try write_posts(self.res, self.txn, self.logged_in, PostSet{ .base = .{ .idx = args.list_id } }, .{

             .show_posts = true,
             .show_quotes = true,
             .show_comments = true,
             .show_posts = true,
             .show_quotes = true,
             .show_comments = true,


@@ -1064,8 +1243,8 @@ const GET = struct {
                 const name = kv.val.name;
                 const post_list = kv.val.list;
                 try self.res.write(
                 const name = kv.val.name;
                 const post_list = kv.val.list;
                 try self.res.write(

-                    \\<a href="/list/{x}">{s}</a>
-                , .{ post_list.idx.?, name.constSlice() });
+                    \\<a href="/list/{x}">{s}</a> 
+                , .{ post_list.base.idx.?, name.constSlice() });

                 try html_form(self.res, "/delete_list", .{
                     .{ "type=\"hidden\" name=\"list_id\" value=\"{x}\"", .{kv.key} },
                     "type=\"submit\" value=\"Delete\"",
                 try html_form(self.res, "/delete_list", .{
                     .{ "type=\"hidden\" name=\"list_id\" value=\"{x}\"", .{kv.key} },
                     "type=\"submit\" value=\"Delete\"",


@@ -1076,8 +1255,8 @@ const GET = struct {
             try self.res.write("not logged in", .{});
         }
     }
             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 @"/feed/"(self: Self, args: struct { feed_id: UserSet.Base.Index }) !void {
+        try write_timeline(self.res, self.txn, self.logged_in, UserSet{ .base = .{ .idx = args.feed_id } });

     }
     pub fn @"/feeds"(self: Self) !void {
         if (self.logged_in) |login| {
     }
     pub fn @"/feeds"(self: Self) !void {
         if (self.logged_in) |login| {


@@ -1095,8 +1274,8 @@ const GET = struct {
                 const name = kv.val.name;
                 const user_list = kv.val.list;
                 try self.res.write(
                 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() });
+                    \\<a href="/feed/{x}">{s}</a> 
+                , .{ user_list.base.idx.?, name.constSlice() });

                 try html_form(self.res, "/delete_feed", .{
                     .{ "type=\"hidden\" name=\"list_id\" value=\"{x}\"", .{kv.key} },
                     "type=\"submit\" value=\"Delete\"",
                 try html_form(self.res, "/delete_feed", .{
                     .{ "type=\"hidden\" name=\"list_id\" value=\"{x}\"", .{kv.key} },
                     "type=\"submit\" value=\"Delete\"",


@@ -1114,7 +1293,7 @@ const GET = struct {
 
             try html_form(self.res, "/post", .{
                 .{ "type=\"hidden\" name=\"referer\" value=\"{s}\"", .{referer} },
 
             try html_form(self.res, "/post", .{
                 .{ "type=\"hidden\" name=\"referer\" value=\"{s}\"", .{referer} },

-                "type=\"text\" name=\"text\"",
+                .{ "textarea", "type=\"text\" name=\"text\" placeholder=\"Text\" autofocus", .{} },

                 "type=\"submit\" value=\"Post\"",
             });
         } else {
                 "type=\"submit\" value=\"Post\"",
             });
         } else {


@@ -1133,6 +1312,11 @@ const GET = struct {
                 .{ "type=\"text\" name=\"display_name\" placeholder=\"{s}\"", .{login.user.display_name.constSlice()} },
                 "type=\"submit\" value=\"Change\"",
             });
                 .{ "type=\"text\" name=\"display_name\" placeholder=\"{s}\"", .{login.user.display_name.constSlice()} },
                 "type=\"submit\" value=\"Change\"",
             });

+            try self.res.write("<br />Description: ", .{});
+            try html_form(self.res, "/set_description", .{
+                .{ "textarea", "type=\"text\" name=\"description\" placeholder=\"{s}\"", .{login.user.description.constSlice()} },
+                "type=\"submit\" value=\"Change\"",
+            });

             try self.res.write("<br />Password: ", .{});
             try html_form(self.res, "/set_password", .{
                 "type=\"text\" name=\"password\"",
             try self.res.write("<br />Password: ", .{});
             try html_form(self.res, "/set_password", .{
                 "type=\"text\" name=\"password\"",


@@ -1148,6 +1332,7 @@ const GET = struct {
         } else {
             // TODO: generic home
             try self.res.write("Homepage", .{});
         } else {
             // TODO: generic home
             try self.res.write("Homepage", .{});

+            // try write_frontpage(self.res, self.txn);

         }
     }
 };
         }
     }
 };


@@ -1164,24 +1349,24 @@ const POST = struct {
 
     pub fn handle(self: Self) !bool {
         const ti = @typeInfo(Self);
 
     pub fn handle(self: Self) !bool {
         const ti = @typeInfo(Self);

-        inline for (ti.Struct.decls) |f_decl| {
+        inline for (ti.@"struct".decls) |f_decl| {

             if (std.mem.eql(u8, f_decl.name, self.req.target)) {
                 const f = @field(Self, f_decl.name);
                 const fi = @typeInfo(@TypeOf(f));
             if (std.mem.eql(u8, f_decl.name, self.req.target)) {
                 const f = @field(Self, f_decl.name);
                 const fi = @typeInfo(@TypeOf(f));

-                if (fi.Fn.params.len == 1) {
+                if (fi.@"fn".params.len == 1) {

                     _ = try @call(.auto, f, .{self});
                 } else {
                     _ = try @call(.auto, f, .{self});
                 } else {

-                    const args_type = fi.Fn.params[fi.Fn.params.len - 1].type.?;
+                    const args_type = fi.@"fn".params[fi.@"fn".params.len - 1].type.?;

                     const argsi = @typeInfo(args_type);
                     var args: args_type = undefined;
                     const argsi = @typeInfo(args_type);
                     var args: args_type = undefined;

-                    inline for (argsi.Struct.fields) |field| {
+                    inline for (argsi.@"struct".fields) |field| {

                         const str = self.req.get_value(field.name) orelse return error.ArgNotFound;
                         const field_ti = @typeInfo(field.type);
                         switch (field_ti) {
                         const str = self.req.get_value(field.name) orelse return error.ArgNotFound;
                         const field_ti = @typeInfo(field.type);
                         switch (field_ti) {

-                            .Int => {
+                            .int => {

                                 @field(args, field.name) = try std.fmt.parseUnsigned(field.type, str, 16);
                             },
                                 @field(args, field.name) = try std.fmt.parseUnsigned(field.type, str, 16);
                             },

-                            .Enum => {
+                            .@"enum" => {

                                 @field(args, field.name) = try parse_enum(field.type, str, 16);
                             },
                             else => {
                                 @field(args, field.name) = try parse_enum(field.type, str, 16);
                             },
                             else => {


@@ -1232,13 +1417,13 @@ const POST = struct {
         const txn = try self.env.txn();
         defer txn.commit() catch {};
 
         const txn = try self.env.txn();
         defer txn.commit() catch {};
 

-        const user_ids = try Db.user_ids(txn);
+        var user_ids = try Db.user_ids.open(txn);

 
         if (!try user_ids.has(username)) {
             try user_ids.del(login.user.name);
             try user_ids.put(username, login.user.id);
 
 
         if (!try user_ids.has(username)) {
             try user_ids.del(login.user.name);
             try user_ids.put(username, login.user.id);
 

-            const users = try Db.users(txn);
+            const users = try Db.users.open(txn);

             var user = login.user;
             user.name = username;
             try users.put(login.user.id, user);
             var user = login.user;
             user.name = username;
             try users.put(login.user.id, user);


@@ -1251,18 +1436,30 @@ const POST = struct {
         const txn = try self.env.txn();
         defer txn.commit() catch {};
 
         const txn = try self.env.txn();
         defer txn.commit() catch {};
 

-        const users = try Db.users(txn);
+        const users = try Db.users.open(txn);

         var user = login.user;
         user.display_name = display_name;
         try users.put(login.user.id, user);
     }
         var user = login.user;
         user.display_name = display_name;
         try users.put(login.user.id, user);
     }

+    pub fn @"/set_description"(self: Self, args: struct { description: []const u8 }) !void {
+        const login = self.logged_in orelse return error.NotLoggedIn;
+        const description = try reencode(UserDescription, args.description);
+
+        const txn = try self.env.txn();
+        defer txn.commit() catch {};
+
+        const users = try Db.users.open(txn);
+        var user = login.user;
+        user.description = description;
+        try users.put(login.user.id, user);
+    }

     pub fn @"/set_password"(self: Self, args: struct { password: []const u8 }) !void {
         const login = self.logged_in orelse return error.NotLoggedIn;
 
         const txn = try self.env.txn();
         defer txn.commit() catch {};
 
     pub fn @"/set_password"(self: Self, args: struct { password: []const u8 }) !void {
         const login = self.logged_in orelse return error.NotLoggedIn;
 
         const txn = try self.env.txn();
         defer txn.commit() catch {};
 

-        const users = try Db.users(txn);
+        const users = try Db.users.open(txn);

         var user = login.user;
         user.password_hash = try Chirp.hash_password(args.password);
         try users.put(login.user.id, user);
         var user = login.user;
         user.password_hash = try Chirp.hash_password(args.password);
         try users.put(login.user.id, user);


@@ -1313,7 +1510,7 @@ const POST = struct {
             // TODO: decode name
 
             var txn = try self.env.txn();
             // TODO: decode name
 
             var txn = try self.env.txn();

-            const postlist = try PostList.init(txn);
+            const postlist = try PostSet.init(txn);

             try txn.commit();
 
             txn = try self.env.txn();
             try txn.commit();
 
             txn = try self.env.txn();


@@ -1322,9 +1519,9 @@ const POST = struct {
             try txn.commit();
         }
     }
             try txn.commit();
         }
     }

-    pub fn @"/delete_list"(self: Self, args: struct { list_id: PostList.Index }) !void {
+    pub fn @"/delete_list"(self: Self, args: struct { list_id: PostSet.Base.Index }) !void {

         if (self.logged_in) |login| {
         if (self.logged_in) |login| {

-            var post_list: ?PostList = null;
+            var post_list: ?PostSet = null;

             {
                 const txn = try self.env.txn();
                 defer txn.commit() catch {};
             {
                 const txn = try self.env.txn();
                 defer txn.commit() catch {};


@@ -1340,14 +1537,14 @@ const POST = struct {
             }
         }
     }
             }
         }
     }

-    pub fn @"/list_add"(self: Self, args: struct { list_id: PostList.Index, post_id: PostId }) !void {
+    pub fn @"/list_add"(self: Self, args: struct { list_id: PostSet.Base.Index, post_id: PostId }) !void {

         if (self.logged_in) |login| {
             _ = login;
 
             const txn = try self.env.txn();
             defer txn.commit() catch {};
 
         if (self.logged_in) |login| {
             _ = login;
 
             const txn = try self.env.txn();
             defer txn.commit() catch {};
 

-            const post_list = PostList{ .idx = args.list_id };
+            const post_list = PostSet{ .base = .{ .idx = args.list_id } };

             var post_list_view = try post_list.open(txn);
             if (try post_list_view.has(args.post_id)) {
                 try post_list_view.del(args.post_id);
             var post_list_view = try post_list.open(txn);
             if (try post_list_view.has(args.post_id)) {
                 try post_list_view.del(args.post_id);


@@ -1362,7 +1559,7 @@ const POST = struct {
             const name = try Name.fromSlice(name_str);
 
             var txn = try self.env.txn();
             const name = try Name.fromSlice(name_str);
 
             var txn = try self.env.txn();

-            const userlist = try UserList.init(txn);
+            const userlist = try UserSet.init(txn);

             try txn.commit();
 
             txn = try self.env.txn();
             try txn.commit();
 
             txn = try self.env.txn();


@@ -1371,9 +1568,9 @@ const POST = struct {
             try txn.commit();
         }
     }
             try txn.commit();
         }
     }

-    pub fn @"/delete_feed"(self: Self, args: struct { list_id: UserList.Index }) !void {
+    pub fn @"/delete_feed"(self: Self, args: struct { list_id: UserSet.Base.Index }) !void {

         if (self.logged_in) |login| {
         if (self.logged_in) |login| {

-            var user_list: ?UserList = null;
+            var user_list: ?UserSet = null;

 
             {
                 const txn = try self.env.txn();
 
             {
                 const txn = try self.env.txn();


@@ -1390,14 +1587,14 @@ const POST = struct {
             }
         }
     }
             }
         }
     }

-    pub fn @"/feed_add"(self: Self, args: struct { feed_id: UserList.Index, user_id: UserId }) !void {
+    pub fn @"/feed_add"(self: Self, args: struct { feed_id: UserSet.Base.Index, user_id: UserId }) !void {

         if (self.logged_in) |login| {
             _ = login;
 
             const txn = try self.env.txn();
             defer txn.commit() catch {};
 
         if (self.logged_in) |login| {
             _ = login;
 
             const txn = try self.env.txn();
             defer txn.commit() catch {};
 

-            const user_list = UserList{ .idx = args.feed_id };
+            const user_list = UserSet{ .base = .{ .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);
             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);


@@ -1446,8 +1643,8 @@ fn list_users(env: lmdb.Env) !void {
     const txn = try env.txn();
     defer txn.abort();
 
     const txn = try env.txn();
     defer txn.abort();
 

-    const users = try Db.users(txn);
-    var it = try users.iterator();
+    const users = try Db.users.open(txn);
+    var it = users.iterator();

 
     while (it.next()) |kv| {
         const key = kv.key;
 
     while (it.next()) |kv| {
         const key = kv.key;


@@ -1459,8 +1656,8 @@ fn list_user_ids(env: lmdb.Env) !void {
     const txn = try env.txn();
     defer txn.abort();
 
     const txn = try env.txn();
     defer txn.abort();
 

-    const user_ids = try Db.user_ids(txn);
-    var it = try user_ids.iterator();
+    const user_ids = try Db.user_ids.open(txn);
+    var it = user_ids.iterator();

 
     while (it.next()) |kv| {
         const key = kv.key;
 
     while (it.next()) |kv| {
         const key = kv.key;


@@ -1473,8 +1670,8 @@ fn list_sessions(env: lmdb.Env) !void {
     const txn = try env.txn();
     defer txn.abort();
 
     const txn = try env.txn();
     defer txn.abort();
 

-    const sessions = try Db.sessions(txn);
-    var it = try sessions.iterator();
+    const sessions = try Db.sessions.open(txn);
+    var it = sessions.iterator();

 
     while (it.next()) |kv| {
         const key = kv.key;
 
     while (it.next()) |kv| {
         const key = kv.key;


@@ -1487,8 +1684,8 @@ fn list_posts(env: lmdb.Env) !void {
     const txn = try env.txn();
     defer txn.abort();
 
     const txn = try env.txn();
     defer txn.abort();
 

-    const posts = try Db.posts(txn);
-    var it = try posts.iterator();
+    const posts = try Db.posts.open(txn);
+    var it = posts.iterator();

 
     while (it.next()) |kv| {
         const key = kv.key;
 
     while (it.next()) |kv| {
         const key = kv.key;


@@ -1515,6 +1712,8 @@ pub fn main() !void {
     var env = try lmdb.Env.open("db", 1024 * 1024 * 10);
     defer env.close();
 
     var env = try lmdb.Env.open("db", 1024 * 1024 * 10);
     defer env.close();
 

+    try Db.init(env);
+

     std.debug.print("Users:\n", .{});
     try list_users(env);
     std.debug.print("User IDs:\n", .{});
     std.debug.print("Users:\n", .{});
     try list_users(env);
     std.debug.print("User IDs:\n", .{});


@@ -1528,9 +1727,10 @@ pub fn main() !void {
         server.wait();
         while (true) {
             const req = (server.next_request(&req_buffer) catch break) orelse break;
         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);
-            };
+            // handle_request(env, req) catch {
+            //     try handle_error(env, req);
+            // };
+            try handle_request(env, req);

         }
     }
     // const ThreadCount = 1;
         }
     }
     // const ThreadCount = 1;


@@ -1548,7 +1748,7 @@ pub fn main() !void {
 
 fn handle_error(env: lmdb.Env, req: http.Request) !void {
     _ = env;
 
 fn handle_error(env: lmdb.Env, req: http.Request) !void {
     _ = env;

-    var res = http.Response.init(req.fd, &res_head_buffer, &res_body_buffer);
+    var res = http.Response.init(req, &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 write_start(&res);
     try res.write("Oops, something went terribly wrong there D:", .{});
     try write_end(&res);


@@ -1559,7 +1759,7 @@ fn handle_request(env: lmdb.Env, req: http.Request) !void {
     // std.debug.print("[{}]: {s}\n", .{ req.method, req.head.? });
 
     // reponse
     // std.debug.print("[{}]: {s}\n", .{ req.method, req.head.? });
 
     // reponse

-    var res = http.Response.init(req.fd, &res_head_buffer, &res_body_buffer);
+    var res = http.Response.init(req, &res_head_buffer, &res_body_buffer);

 
     // check session token
     const logged_in: ?Login = try check_login(env, req, &res);
 
     // check session token
     const logged_in: ?Login = try check_login(env, req, &res);