X-Git-Url: https://gitweb.ps.run/chirp/blobdiff_plain/4dcd5892e7db988893845b389abc4fd1a48d3fec..d8f54dd8ac187349c1194871a55d4675f28e5a43:/src/main.zig diff --git a/src/main.zig b/src/main.zig index 6455207..164606f 100644 --- a/src/main.zig +++ b/src/main.zig @@ -29,8 +29,11 @@ const User = struct { id: UserId, name: Username, display_name: DisplayName, + description: UserDescription, password_hash: PasswordHash, + posts: PostList, + following: UserList, followers: UserList, @@ -82,6 +85,7 @@ const PostId = enum(u64) { _ }; 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); @@ -97,8 +101,8 @@ fn parse_enum(comptime E: type, buf: []const u8, base: u8) !E { } // 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 @@ -107,28 +111,19 @@ fn reencode(text: []const u8) !PostText { 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(), "
", .{}); + } 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); @@ -166,6 +161,9 @@ fn decode(text: []const u8) !std.BoundedArray(u8, 1024) { } const Chirp = struct { + const PostsPerPage = 10; + const UsersPerPage = 10; + pub fn hash_password(password: []const u8) !PasswordHash { var hash_buffer = try PasswordHash.init(128); @@ -220,6 +218,7 @@ const Chirp = struct { .id = user_id, .name = username_array, .display_name = display_name, + .description = try UserDescription.init(0), .password_hash = try hash_password(password), .posts = try PostList.init(txn), .following = try UserList.init(txn), @@ -283,7 +282,7 @@ const Chirp = struct { const posts = try Db.posts(txn); 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, @@ -440,15 +439,86 @@ const Chirp = struct { // }}} // 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("Prev ", .{ self.res.req.target, @intFromEnum(oldest_idx) }); + } + + if (next_idx) |kv| { + try self.res.write("Next", .{ self.res.req.target, @intFromEnum(kv.key) }); + } + } + }; +} fn html_form(res: *http.Response, action: []const u8, inputs: anytype) !void { try res.write("
", .{action}); inline for (inputs) |input| { switch (@typeInfo(@TypeOf(input))) { - .Struct => { - 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(">", .{input[0]}); + } else { + try res.write("", .{}); + } }, else => { try res.write(" + \\
\\{s} - , .{ 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(" ..", .{@intFromEnum(id)}); } @@ -560,6 +630,17 @@ fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: Po \\{s}
, .{ time_str(post.time).constSlice(), post.text.constSlice() }); + if (logged_in != null and post.user_id == logged_in.?.user.id) { + // Votes + try res.write( + \\ + \\{1} Upvotes + \\{2} Downvotes + \\ + \\
+ , .{ @intFromEnum(post_id), post.upvotes, post.downvotes }); + } + if (post.quote_id) |quote_id| { try res.write("
", .{}); if (options.recurse > 0) { @@ -619,13 +700,13 @@ 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; - const id = kv.val.list.idx.?; + const id = kv.val.list.base.idx.?; const list_view = try kv.val.list.open(txn); try res.write("", .{ id, name.constSlice(), if (list_view.has(post_id) catch false) " *" else "" }); } try res.write("", .{}); - try res.write("", .{@intFromEnum(post_id)}); - try res.write("", .{}); + try res.write("", .{@intFromEnum(post_id)}); + try res.write("", .{}); try res.write("", .{}); } @@ -651,7 +732,7 @@ 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| { - 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("
", .{}); if (options.recurse == 1) { count += 1; @@ -683,12 +764,12 @@ 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", .{ - .{ "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=\"hidden\" name=\"user.id\" value=\"{x}\"", .{@intFromEnum(user.id)} }, + .{ "type=\"hidden\" name=\"user_id\" value=\"{x}\"", .{@intFromEnum(user.id)} }, \\type="submit" value="Follow" }); } @@ -700,13 +781,13 @@ 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; - const id = kv.val.list.idx.?; + const id = kv.val.list.base.idx.?; const list_view = try kv.val.list.open(txn); try res.write("", .{ id, name.constSlice(), if (list_view.has(user.id) catch false) " *" else "" }); } try res.write("", .{}); - try res.write("", .{@intFromEnum(user.id)}); - try res.write("", .{}); + try res.write("", .{@intFromEnum(user.id)}); + try res.write("", .{}); try res.write("", .{}); } try res.write( @@ -735,6 +816,15 @@ fn write_profile(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user: Us , .{}); } + if (user.description.len > 0) { + try res.write( + \\
+ // \\« {s} » + \\{s} + \\
+ , .{user.description.constSlice()}); + } + try res.write("
", .{}); } fn write_posts(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_list: PostList, options: struct { @@ -744,18 +834,21 @@ fn write_posts(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_list: }) !void { const posts_view = try post_list.open(txn); - var it = posts_view.reverse_iterator(); - while (it.next()) |post_id| { + var paginate = try Paginate(PostList).init(res, posts_view, Chirp.PostsPerPage); + + while (paginate.next()) |post_id| { const posts = try Db.posts(txn); - const post = try posts.get(post_id); + 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))) { - 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("
", .{}); } } + + 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); @@ -771,7 +864,7 @@ fn write_timeline(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user_li 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) { @@ -780,7 +873,7 @@ 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| { - 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; @@ -801,6 +894,35 @@ fn write_timeline(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user_li try res.write("
", .{}); } } +fn write_user(res: *http.Response, txn: lmdb.Txn, user_id: UserId) !void { + const users = try Db.users(txn); + const user = try users.get(user_id); + try res.write( + \\{s} + , .{ 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(" {s}
", .{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; @@ -969,20 +1091,23 @@ 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); - var it = following.iterator(); + const following_view = try user.following.open(self.txn); + + var paginate = try Paginate(UserList).init(self.res, following_view, Chirp.UsersPerPage); try self.res.write( \\

{s} follows:

, .{ 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( \\{s}
, .{ following_user.name.constSlice(), following_user.display_name.constSlice() }); } + + try paginate.write_navigation(); } else |err| { try self.res.write( \\

User not found [{}]

@@ -995,20 +1120,22 @@ const GET = struct { const users = try Db.users(self.txn); 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(UserList).init(self.res, followers_view, Chirp.UsersPerPage); try self.res.write( \\

{s} followers:

, .{ 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( \\{s}
, .{ follower_user.name.constSlice(), follower_user.display_name.constSlice() }); } + + try paginate.write_navigation(); } else |err| { try self.res.write( \\

User not found [{}]

@@ -1021,6 +1148,12 @@ const GET = struct { .show_comment_field = true, }); } + pub fn @"/upvotes/"(self: Self, args: struct { post_id: PostId }) !void { + const posts = try Db.posts(self.txn); + const post = try posts.get(args.post_id); + try self.res.write("{} upvotes:
", .{post.upvotes}); + try write_votes(self.res, self.txn, post.votes, .{}); + } pub fn @"/quoted/"(self: Self, args: struct { post_id: PostId }) !void { const posts = try Db.posts(self.txn); const post = try posts.get(args.post_id); @@ -1031,21 +1164,21 @@ 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)} }, - "type=\"text\" name=\"text\" placeholder=\"Text\"", + "type=\"text\" name=\"text\" placeholder=\"Text\" autofocus", "type=\"submit\" value=\"Quote\"", }); try self.res.write("
", .{}); } - 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("
", .{}); - } + // 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: PostList.Base.Index }) !void { + try write_posts(self.res, self.txn, self.logged_in, PostList{ .base = .{ .idx = args.list_id } }, .{ .show_posts = true, .show_quotes = true, .show_comments = true, @@ -1068,7 +1201,7 @@ const GET = struct { const post_list = kv.val.list; try self.res.write( \\{s} - , .{ post_list.idx.?, name.constSlice() }); + , .{ 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\"", @@ -1079,8 +1212,8 @@ const GET = struct { 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: UserList.Base.Index }) !void { + try write_timeline(self.res, self.txn, self.logged_in, UserList{ .base = .{ .idx = args.feed_id } }); } pub fn @"/feeds"(self: Self) !void { if (self.logged_in) |login| { @@ -1099,7 +1232,7 @@ const GET = struct { const user_list = kv.val.list; try self.res.write( \\{s} - , .{ user_list.idx.?, name.constSlice() }); + , .{ 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\"", @@ -1117,7 +1250,7 @@ const GET = struct { try html_form(self.res, "/post", .{ .{ "type=\"hidden\" name=\"referer\" value=\"{s}\"", .{referer} }, - "type=\"text\" name=\"text\"", + "type=\"text\" name=\"text\" placeholder=\"Text\" autofocus", "type=\"submit\" value=\"Post\"", }); } else { @@ -1136,6 +1269,11 @@ const GET = struct { .{ "type=\"text\" name=\"display_name\" placeholder=\"{s}\"", .{login.user.display_name.constSlice()} }, "type=\"submit\" value=\"Change\"", }); + try self.res.write("
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("
Password: ", .{}); try html_form(self.res, "/set_password", .{ "type=\"text\" name=\"password\"", @@ -1259,6 +1397,18 @@ const POST = struct { 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(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; @@ -1325,7 +1475,7 @@ const POST = struct { 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: PostList.Base.Index }) !void { if (self.logged_in) |login| { var post_list: ?PostList = null; { @@ -1343,14 +1493,14 @@ 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: PostList.Base.Index, post_id: PostId }) !void { 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 = PostList{ .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); @@ -1374,7 +1524,7 @@ const POST = struct { 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: UserList.Base.Index }) !void { if (self.logged_in) |login| { var user_list: ?UserList = null; @@ -1393,14 +1543,14 @@ 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: UserList.Base.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 }; + const user_list = UserList{ .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); @@ -1531,9 +1681,10 @@ pub fn main() !void { 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; @@ -1551,7 +1702,7 @@ pub fn main() !void { 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); @@ -1562,7 +1713,7 @@ fn handle_request(env: lmdb.Env, req: http.Request) !void { // 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);