X-Git-Url: https://gitweb.ps.run/chirp/blobdiff_plain/5ef9c3c08b5509fb3c9d0d13dfeb32e9067f901a..76968d86e7b0d55c44fb9c2a3bd5352f3c46a54e:/src/main.zig
diff --git a/src/main.zig b/src/main.zig
index f5e66ea..98da131 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -1,189 +1,22 @@
const std = @import("std");
const lmdb = @import("lmdb");
+const db = @import("db");
const http = @import("http");
// db {{{
-const Prng = struct {
- var prng: std.Random.DefaultPrng = std.Random.DefaultPrng.init(0);
-
- fn IdType(comptime T: type) type {
- const ti = @typeInfo(@TypeOf(T.get));
- return ti.Fn.params[1].type.?;
- }
-
- pub fn gen_id(dbi: anytype) IdType(@TypeOf(dbi)) {
- var id: IdType(@TypeOf(dbi)) = @enumFromInt(Prng.prng.next());
-
- while (dbi.has(id)) {
- id = @enumFromInt(Prng.prng.next());
- }
-
- return id;
- }
-
- pub fn gen_str(dbi: anytype, comptime len: usize) [len]u8 {
- var buf: [len / 2]u8 = undefined;
- var res: [len]u8 = undefined;
- Prng.prng.fill(&buf);
- for (0..len / 2) |i| {
- res[i * 2 + 0] = 'a' + (buf[i] % 16);
- res[i * 2 + 1] = 'a' + (buf[i] >> 4 % 16);
- }
-
- while (dbi.has(res)) {
- Prng.prng.fill(&buf);
- for (0..len / 2) |i| {
- res[i * 2 + 0] = 'a' + (buf[i] % 16);
- res[i * 2 + 1] = 'a' + (buf[i] >> 4 % 16);
- }
- }
-
- return res;
- }
-};
-
const Db = struct {
- fn Key(types: anytype) type {
- return std.meta.Tuple(&types);
- }
- fn users(txn: *const lmdb.Txn) !lmdb.Dbi(UserId, User) {
- return try txn.dbi("users", UserId, User);
- }
- fn user_ids(txn: *const lmdb.Txn) !lmdb.Dbi(Username, UserId) {
- return try txn.dbi("user_ids", Username, UserId);
- }
- fn sessions(txn: *const lmdb.Txn) !lmdb.Dbi(SessionToken, UserId) {
- return try txn.dbi("sessions", SessionToken, UserId);
- }
- fn posts(txn: *const lmdb.Txn) !lmdb.Dbi(PostId, Post) {
- return try txn.dbi("posts", PostId, Post);
- }
- fn lists(txn: *const lmdb.Txn, comptime T: type) !lmdb.Dbi(ListId, ListNode(T)) {
- return try txn.dbi("lists", ListId, ListNode(T));
+ fn users(txn: lmdb.Txn) !db.Db(UserId, User) {
+ return try db.Db(UserId, User).init(txn, "users");
}
- fn sets(txn: *const lmdb.Txn, comptime T: type) !lmdb.Dbi(Key(.{ SetId, T }), u0) {
- return try txn.dbi("sets", Key(.{ SetId, T }), u0);
+ fn user_ids(txn: lmdb.Txn) !db.Db(Username, UserId) {
+ return try db.Db(Username, UserId).init(txn, "user_ids");
}
-
- const ListId = enum(u64) { _ };
-
- pub fn ListNode(comptime T: type) type {
- return struct {
- next: ?ListId,
- prev: ?ListId,
- data: T,
- };
+ fn sessions(txn: lmdb.Txn) !db.Db(SessionToken, UserId) {
+ return try db.Db(SessionToken, UserId).init(txn, "sessions");
}
-
- pub fn List(comptime T: type) type {
- return struct {
- const Self = @This();
-
- first: ListId = undefined,
- last: ListId = undefined,
- len: usize = 0,
-
- pub const Iterator = struct {
- dbi: lmdb.Dbi(ListId, ListNode(T)),
- id_maybe: ?ListId,
-
- pub fn next(self: *Iterator) ?T {
- const id = self.id_maybe orelse return null;
-
- // TODO: how to handle this?
- const ln = self.dbi.get(id) orelse return null;
- self.id_maybe = ln.next;
- return ln.data;
- }
- };
- pub fn it(self: *const Self, txn: *const lmdb.Txn) !Iterator {
- const list = try Db.lists(txn, T);
- return .{ .dbi = list, .id_maybe = if (self.len > 0) self.first else null };
- }
- pub fn append(self: *Self, txn: *const lmdb.Txn, t: T) !void {
- const list = try Db.lists(txn, T);
- const new_id = Prng.gen_id(list);
-
- if (self.len == 0) {
- self.first = new_id;
- self.last = new_id;
- self.len = 1;
- list.put(new_id, .{
- .next = null,
- .prev = null,
- .data = t,
- });
- } else {
- const prev_id = self.last;
- var last = list.get(prev_id).?;
- last.next = new_id;
- list.put(prev_id, last);
-
- list.put(new_id, .{
- .next = null,
- .prev = prev_id,
- .data = t,
- });
-
- self.last = new_id;
- self.len += 1;
- }
- }
- };
- }
-
- const SetId = enum(u64) { _ };
-
- pub fn Set(comptime T: type) type {
- return struct {
- const Self = @This();
- const SetKey = Key(.{ SetId, T });
-
- len: usize = 0,
- set_id: ?SetId = null,
-
- pub fn init(self: *Self) void {
- self.set_id = @enumFromInt(Prng.prng.next());
- }
-
- pub fn has(self: Self, txn: *const lmdb.Txn, t: T) !bool {
- if (self.set_id == null) return false;
-
- const set = try Db.sets(txn, T);
- const key = SetKey{ self.set_id.?, t };
-
- return set.has(key);
- }
-
- pub fn add(self: *Self, txn: *const lmdb.Txn, t: T) !void {
- if (self.set_id == null) self.init();
-
- const set = try Db.sets(txn, T);
- const key = SetKey{ self.set_id.?, t };
-
- if (!set.has(key)) {
- set.put(key, 0);
- if (set.has(key)) {
- self.len += 1;
- }
- }
- }
-
- pub fn del(self: *Self, txn: *const lmdb.Txn, t: T) !void {
- if (self.set_id == null) self.init();
-
- const set = try Db.sets(txn, T);
- const key = SetKey{ self.set_id.?, t };
-
- if (set.has(key)) {
- set.del(key);
- if (!set.has(key)) {
- self.len -= 1;
- }
- }
- }
- };
+ fn posts(txn: lmdb.Txn) !db.Db(PostId, Post) {
+ return try db.Db(PostId, Post).init(txn, "posts");
}
};
@@ -194,238 +27,421 @@ const Db = struct {
const User = struct {
// TODO: choose sizes
id: UserId,
- username: Username,
+ name: Username,
+ display_name: DisplayName,
password_hash: PasswordHash,
- posts: PostList = PostList{},
+ posts: PostList,
+ following: UserList,
+ followers: UserList,
+
+ post_lists: PostListList,
+ feeds: UserListList,
};
const Post = struct {
id: PostId,
+ parent_id: ?PostId,
+ quote_id: ?PostId,
user_id: UserId,
time: Timestamp,
- upvotes: UserList = UserList{},
- downvotes: UserList = UserList{},
- comments: PostList = PostList{},
- // reposts
+ upvotes: u64 = 0,
+ downvotes: u64 = 0,
+ votes: VoteList,
+ comments: PostList,
+ quotes: PostList,
text: PostText,
};
-const SessionTokenLen = 16;
+const SavedPostList = struct {
+ name: Name,
+ list: PostList,
+};
+const SavedUserList = struct {
+ name: Name,
+ list: UserList,
+};
+
+const Vote = struct {
+ const Kind = enum { Up, Down };
+
+ kind: Kind,
+ time: Timestamp,
+};
const Id = u64;
const Login = struct {
user: User,
- user_id: UserId,
session_token: SessionToken,
};
+const Name = std.BoundedArray(u8, 32);
const UserId = enum(u64) { _ };
const PostId = enum(u64) { _ };
const Timestamp = i64;
-const Username = std.BoundedArray(u8, 16);
+const Username = std.BoundedArray(u8, 32);
+const DisplayName = std.BoundedArray(u8, 64);
const PasswordHash = std.BoundedArray(u8, 128);
-const SessionToken = [SessionTokenLen]u8;
+const SessionToken = u64;
const CookieValue = std.BoundedArray(u8, 128);
const PostText = std.BoundedArray(u8, 1024);
-const PostList = Db.List(PostId);
-const UserList = Db.Set(UserId);
-
-pub fn hash_password(password: []const u8) !PasswordHash {
- var hash_buffer = try PasswordHash.init(128);
+const PostList = db.Set(PostId);
+const UserList = db.Set(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 {
+ return @enumFromInt(try std.fmt.parseUnsigned(@typeInfo(E).Enum.tag_type, buf, base));
+}
- // 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);
+// https://developer.mozilla.org/en-US/docs/Glossary/Percent-encoding
+fn reencode(text: []const u8) !PostText {
+ var result = try PostText.init(0);
+
+ const len = @min(text.len, 1024); // TODO: PostText length
+
+ var idx: usize = 0;
+ while (idx < len) : (idx += 1) {
+ 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;
+ }
- // TODO: choose limits
- const result = try std.crypto.pwhash.argon2.strHash(password, .{
- .allocator = alloc.allocator(),
- .params = std.crypto.pwhash.argon2.Params.fromLimits(1000, 1024),
- }, hash_buffer.slice());
+ 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;
+ }
+ }
- try hash_buffer.resize(result.len);
+ try std.fmt.format(result.writer(), "&#x{s};", .{text[idx + 1 .. idx + 3]});
+ idx += 2;
+ } else {
+ try result.append(c);
+ }
+ }
- return hash_buffer;
+ return result;
}
-pub fn verify_password(password: []const u8, hash: PasswordHash) bool {
- var buffer: [1024 * 10]u8 = undefined;
- var alloc = std.heap.FixedBufferAllocator.init(&buffer);
-
- if (std.crypto.pwhash.argon2.strVerify(hash.constSlice(), password, .{
- .allocator = alloc.allocator(),
- })) {
- return true;
- } else |err| {
- std.debug.print("verify error: {}\n", .{err});
- return false;
+fn decode(text: []const u8) !std.BoundedArray(u8, 1024) {
+ var result = try std.BoundedArray(u8, 1024).init(0);
+
+ const max_len = @min(text.len, 1024); // TODO: PostText length
+
+ var idx: usize = 0;
+ var len: usize = 0;
+ while (len < max_len and idx < text.len) : ({
+ idx += 1;
+ len += 1;
+ }) {
+ const c = text[idx];
+ if (c == '+') {
+ try result.append(' ');
+ } else if (c == '%') {
+ if (idx + 2 < text.len) {
+ try std.fmt.format(result.writer(), "{c}", .{try std.fmt.parseUnsigned(u8, text[idx + 1 .. idx + 3], 16)});
+ }
+ idx += 2;
+ } else {
+ try result.append(c);
+ }
}
+
+ return result;
}
-pub fn register_user(env: *lmdb.Env, username: []const u8, password: []const u8) !bool {
- const username_array = try Username.fromSlice(username);
+const Chirp = struct {
+ pub fn hash_password(password: []const u8) !PasswordHash {
+ var hash_buffer = try PasswordHash.init(128);
- const txn = try env.txn();
- defer {
- txn.commit();
- env.sync();
- }
+ // 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);
- const users = try Db.users(&txn);
- const user_ids = try Db.user_ids(&txn);
+ // TODO: choose limits
+ const result = try std.crypto.pwhash.argon2.strHash(password, .{
+ .allocator = alloc.allocator(),
+ .params = std.crypto.pwhash.argon2.Params.fromLimits(1000, 1024),
+ }, hash_buffer.slice());
- if (user_ids.has(username_array)) {
- return false;
- } else {
- const user_id = Prng.gen_id(users);
- users.put(user_id, User{
- .id = user_id,
- .username = username_array,
- .password_hash = try hash_password(password),
- });
+ try hash_buffer.resize(result.len);
- user_ids.put(username_array, user_id);
+ return hash_buffer;
+ }
- return true;
+ pub fn verify_password(password: []const u8, hash: PasswordHash) bool {
+ var buffer: [1024 * 10]u8 = undefined;
+ var alloc = std.heap.FixedBufferAllocator.init(&buffer);
+
+ if (std.crypto.pwhash.argon2.strVerify(hash.constSlice(), password, .{
+ .allocator = alloc.allocator(),
+ })) {
+ return true;
+ } else |err| {
+ std.debug.print("verify error: {}\n", .{err});
+ return false;
+ }
}
-}
-pub fn login_user(env: *lmdb.Env, username: []const u8, password: []const u8) !SessionToken {
- const username_array = try Username.fromSlice(username);
+ pub fn register_user(env: lmdb.Env, username: []const u8, password: []const u8) !bool {
+ const username_array = try Username.fromSlice(username);
+ const display_name = try DisplayName.fromSlice(username);
- const txn = try env.txn();
- defer {
- txn.commit();
- env.sync();
+ const txn = try env.txn();
+ defer txn.commit() catch |err| {
+ std.debug.print("error registering user: {}\n", .{err});
+ };
+
+ const users = try Db.users(txn);
+ const user_ids = try Db.user_ids(txn);
+
+ if (try user_ids.has(username_array)) {
+ return false;
+ } else {
+ const user_id = try db.Prng.gen(users.dbi, UserId);
+
+ try users.put(user_id, User{
+ .id = user_id,
+ .name = username_array,
+ .display_name = display_name,
+ .password_hash = try hash_password(password),
+ .posts = try PostList.init(txn),
+ .following = try UserList.init(txn),
+ .followers = try UserList.init(txn),
+ .post_lists = try PostListList.init(txn),
+ .feeds = try UserListList.init(txn),
+ });
+
+ try user_ids.put(username_array, user_id);
+
+ return true;
+ }
}
- const user_ids = try Db.user_ids(&txn);
- const user_id = user_ids.get(username_array) orelse return error.UnknownUsername;
- std.debug.print("id: {}\n", .{user_id});
+ pub fn login_user(
+ env: lmdb.Env,
+ username: []const u8,
+ password: []const u8,
+ ) !SessionToken {
+ const username_array = try Username.fromSlice(username);
+
+ const txn = try env.txn();
+ defer txn.commit() catch {};
+
+ const user_ids = try Db.user_ids(txn);
+ 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 user = try users.get(user_id);
- const users = try Db.users(&txn);
- if (users.get(user_id)) |user| {
if (verify_password(password, user.password_hash)) {
- const sessions = try Db.sessions(&txn);
- const session_token = Prng.gen_str(sessions, SessionTokenLen);
- sessions.put(session_token, user_id);
+ const sessions = try Db.sessions(txn);
+ const session_token = try db.Prng.gen(sessions.dbi, SessionToken);
+ try sessions.put(session_token, user_id);
return session_token;
} else {
return error.IncorrectPassword;
}
- } else {
- return error.UserNotFound;
}
-}
-fn logout_user(env: *lmdb.Env, session_token: SessionToken) !void {
- const txn = try env.txn();
- defer {
- txn.commit();
- env.sync();
+ fn logout_user(env: lmdb.Env, session_token: SessionToken) !void {
+ const txn = try env.txn();
+ defer txn.commit() catch {};
+
+ const sessions = try Db.sessions(txn);
+ try sessions.del(session_token);
}
- const sessions = try Db.sessions(&txn);
- 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 {
+ var post_id: PostId = undefined;
+
+ // TODO: do this in one commit
+
+ var txn: lmdb.Txn = undefined;
+ {
+ // create post
+ txn = try env.txn();
+ defer txn.commit() catch {};
+
+ const posts = try Db.posts(txn);
+ post_id = try db.Prng.gen(posts.dbi, PostId);
+
+ const decoded_text = try reencode(text);
+ try posts.put(post_id, Post{
+ .id = post_id,
+ .parent_id = parent_id,
+ .quote_id = quote_id,
+ .user_id = user_id,
+ .time = std.time.timestamp(),
+ .votes = try VoteList.init(txn),
+ .comments = try PostList.init(txn),
+ .quotes = try PostList.init(txn),
+ .text = decoded_text,
+ });
+ }
-fn post(env: *lmdb.Env, user_id: UserId, text: []const u8) !void {
- var post_id: PostId = undefined;
-
- var txn = try env.txn();
- {
- const posts = try Db.posts(&txn);
- post_id = Prng.gen_id(posts);
- posts.put(post_id, Post{
- .id = post_id,
- .user_id = user_id,
- .time = std.time.timestamp(),
- .text = try PostText.fromSlice(text),
- });
+ {
+ // append to user's posts
+ txn = try env.txn();
+ defer txn.commit() catch {};
- txn.commit();
- env.sync();
+ var posts_view = try post_list.open(txn);
+ try posts_view.append(post_id);
+ }
+
+ if (quote_id != null) {
+ txn = try env.txn();
+ defer txn.commit() catch {};
+
+ const posts = try Db.posts(txn);
+ const quote_post = try posts.get(quote_id.?);
+ var quotes = try quote_post.quotes.open(txn);
+ try quotes.append(post_id);
+ }
+
+ return post_id;
}
- txn = try env.txn();
- {
- const users = try Db.users(&txn);
- var user = users.get(user_id) orelse return error.UserNotFound;
- try user.posts.append(&txn, post_id);
- users.put(user_id, user);
+ fn post(env: lmdb.Env, user_id: UserId, text: []const u8) !void {
+ var txn = try env.txn();
+ const users = try Db.users(txn);
+ const user = try users.get(user_id);
+ txn.abort();
- txn.commit();
- env.sync();
+ const post_id = try append_post(env, user_id, user.posts, null, null, text);
+ _ = post_id;
}
-}
-fn vote(env: *lmdb.Env, post_id: PostId, user_id: UserId, dir: enum { Up, Down }) !void {
- const txn = try env.txn();
- defer {
- txn.commit();
- env.sync();
+ 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 user = try users.get(user_id);
+
+ const posts = try Db.posts(txn);
+ const parent_post = try posts.get(parent_post_id);
+ txn.abort();
+
+ const post_id = try append_post(env, user_id, parent_post.comments, parent_post_id, null, text);
+
+ txn = try env.txn();
+ var replies_view = try user.posts.open(txn);
+ try replies_view.append(post_id);
+ try txn.commit();
}
- const posts = try Db.posts(&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 user = try users.get(user_id);
+ txn.abort();
- var p = posts.get(post_id) orelse return error.PostNotFound;
- if (dir == .Up) {
- try p.upvotes.add(&txn, user_id);
- } else {
- try p.downvotes.add(&txn, user_id);
+ const post_id = try append_post(env, user_id, user.posts, null, quote_post_id, text);
+ _ = post_id;
}
- posts.put(post_id, p);
-}
-fn unvote(env: *lmdb.Env, post_id: PostId, user_id: UserId, dir: enum { Up, Down }) !void {
- const txn = try env.txn();
- defer {
- txn.commit();
- env.sync();
+ fn vote(env: lmdb.Env, post_id: PostId, user_id: UserId, kind: Vote.Kind) !void {
+ const txn = try env.txn();
+ defer txn.commit() catch {};
+
+ const posts = try Db.posts(txn);
+
+ var p = try posts.get(post_id);
+ var votes_view = try p.votes.open(txn);
+
+ var add_vote = true;
+
+ if (try votes_view.has(user_id)) {
+ const old_vote = try votes_view.get(user_id);
+
+ add_vote = old_vote.kind != kind;
+
+ try votes_view.del(user_id);
+
+ switch (old_vote.kind) {
+ .Up => p.upvotes -= 1,
+ .Down => p.downvotes -= 1,
+ }
+ try posts.put(post_id, p);
+ }
+
+ if (add_vote) {
+ try votes_view.append(user_id, Vote{
+ .kind = kind,
+ .time = std.time.timestamp(),
+ });
+
+ if (kind == .Up) {
+ p.upvotes += 1;
+ } else {
+ p.downvotes += 1;
+ }
+ try posts.put(post_id, p);
+ }
}
- const posts = try Db.posts(&txn);
+ fn follow(env: lmdb.Env, user_id: UserId, user_id_to_follow: UserId) !void {
+ const txn = try env.txn();
+ defer txn.commit() catch {};
- var p = posts.get(post_id) orelse return error.PostNotFound;
- if (dir == .Up) {
- try p.upvotes.del(&txn, user_id);
- } else {
- try p.downvotes.del(&txn, user_id);
+ const users = try Db.users(txn);
+
+ const user = try users.get(user_id);
+ const user_to_follow = try users.get(user_id_to_follow);
+
+ var user_following = try user.following.open(txn);
+ var user_to_follow_followers = try user_to_follow.followers.open(txn);
+
+ if ((user_following.has(user_id_to_follow) catch false) and (user_to_follow_followers.has(user_id) catch false)) {
+ try user_following.del(user_id_to_follow);
+ try user_to_follow_followers.del(user_id);
+ } else if (!(user_following.has(user_id_to_follow) catch true) and !(user_to_follow_followers.has(user_id) catch true)) {
+ try user_following.append(user_id_to_follow);
+ try user_to_follow_followers.append(user_id);
+ } else {
+ std.debug.print("Something went wrong when trying to unfollow\n", .{});
+ }
}
- posts.put(post_id, p);
-}
-fn get_session_user_id(env: *lmdb.Env, session_token: SessionToken) !UserId {
- const txn = try env.txn();
- defer txn.abort();
+ fn get_session_user_id(env: lmdb.Env, session_token: SessionToken) !UserId {
+ const txn = try env.txn();
+ defer txn.abort();
- const sessions = try Db.sessions(&txn);
+ const sessions = try Db.sessions(txn);
- if (sessions.get(session_token)) |user_id| {
- return user_id;
- } else {
- return error.SessionNotFound;
+ return try sessions.get(session_token);
}
-}
-fn get_user(env: *lmdb.Env, user_id: UserId) !?User {
- const txn = try env.txn();
- defer txn.abort();
+ fn get_user(env: lmdb.Env, user_id: UserId) !User {
+ const txn = try env.txn();
+ defer txn.abort();
- const users = try Db.users(&txn);
- return users.get(user_id);
-}
+ const users = try Db.users(txn);
+ return try users.get(user_id);
+ }
+};
// }}}
// html {{{
-fn html_form(res: *http.Response, comptime fmt_action: []const u8, args_action: anytype, inputs: anytype) !void {
- try res.write("
+ \\
, .{});
- try html_form(res, "/quit", .{}, .{
- \\type="submit" value="Quit"
- });
}
}
-fn write_posts(res: *http.Response, txn: *const lmdb.Txn, user: User, login: ?Login) !void {
+fn write_start(res: *http.Response) !void {
+ try res.write(
+ \\
+ \\
+ \\
+ \\
+ \\
+ \\
+ \\
+ \\
+ , .{});
+}
+fn write_end(res: *http.Response) !void {
+ try res.write("", .{});
+}
+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);
- var it = try user.posts.it(txn);
- while (it.next()) |post_id| {
- const p = posts.get(post_id) orelse break;
+ const post = posts.get(post_id) catch {
+ res.redirect("/") catch {};
+ return;
+ };
+ const users = try Db.users(txn);
+ const user = try users.get(post.user_id);
+
+ try res.write(
+ \\
+ \\
{s}
+ , .{ user.name.constSlice(), user.display_name.constSlice() });
+ if (post.parent_id) |id| {
+ try res.write(" ..", .{@intFromEnum(id)});
+ }
+ try res.write(
+ \\ {s}
+ \\
{s}
+ , .{ time_str(post.time).constSlice(), post.text.constSlice() });
+
+ if (post.quote_id) |quote_id| {
+ try res.write("
", .{});
+ if (options.recurse > 0) {
+ try write_post(res, txn, logged_in, quote_id, .{ .recurse = options.recurse - 1 });
+ } else {
+ try res.write("
...", .{@intFromEnum(post_id)});
+ }
+ try res.write("
", .{});
+ }
+
+ const comments_view = try post.comments.open(txn);
+ const quotes_view = try post.quotes.open(txn);
+ const votes_view = try post.votes.open(txn);
+
+ // Votes
+ const vote: ?Vote = if (logged_in != null and try votes_view.has(logged_in.?.user.id)) try votes_view.get(logged_in.?.user.id) else null;
+
+ if (vote != null and vote.?.kind == .Up) {
+ try html_form(res, "/upvote", .{
+ .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },
+ .{ "type=\"submit\" value=\"⬆ {}\"", .{post.upvotes} },
+ });
+ } else {
+ try html_form(res, "/upvote", .{
+ .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },
+ .{ "type=\"submit\" value=\"⇧ {}\"", .{post.upvotes} },
+ });
+ }
+ if (vote != null and vote.?.kind == .Down) {
+ try html_form(res, "/downvote", .{
+ .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },
+ .{ "type=\"submit\" value=\"⬇ {}\"", .{post.downvotes} },
+ });
+ } else {
+ try html_form(res, "/downvote", .{
+ .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },
+ .{ "type=\"submit\" value=\"⇩ {}\"", .{post.downvotes} },
+ });
+ }
+
+ // Comment Count
+ try res.write(
+ \\
💭 {}
+ , .{ @intFromEnum(post.id), comments_view.len() });
+
+ // Quote
+ try res.write(
+ \\
🔁 {}
+ , .{ @intFromEnum(post.id), quotes_view.len() });
+
+ // Save to List
+ if (logged_in) |login| {
+ const lists_view = try login.user.post_lists.open(txn);
+ try res.write("
", .{});
+ }
+
+ // Comment field
+ // TODO: maybe always show comment field and prompt for login
+ if (options.show_comment_field and logged_in != null) {
+ try res.write("
", .{});
+ try html_form(res, "/comment", .{
+ .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },
+ "type=\"text\" name=\"text\" placeholder=\"Text\"",
+ "type=\"submit\" value=\"Comment\"",
+ });
+ try res.write("
", .{});
+ }
+
+ // Comments
+ if (options.recurse > 0 and comments_view.len() > 0) {
+ try res.write(
+ \\
+ \\Comments
+ , .{if (options.recurse > 1) " open" else ""});
+ try res.write("", .{});
+ 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 res.write("
", .{});
+ if (options.recurse == 1) {
+ count += 1;
+ if (count >= 3) break;
+ }
+ }
try res.write(
- \\
- \\
{s}
- , .{p.text.constSlice()});
- if (login != null and try p.upvotes.has(txn, login.?.user_id)) {
- try html_form(res, "/unupvote/{}", .{@intFromEnum(post_id)}, .{
- .{ "type=\"submit\" value=\"⬆ {}\"", .{p.upvotes.len} },
+ \\
+ \\
+ , .{});
+ }
+
+ try res.write(
+ \\
+ , .{
+ user.name.constSlice(), following.len(),
+ user.name.constSlice(), followers.len(),
+ });
+
+ try res.write(
+ \\All Posts
+ \\ Comments
+ \\ Quotes
+ , .{
+ user.name.constSlice(),
+ });
+
+ if (logged_in != null and user.id == logged_in.?.user.id) {
+ try res.write(
+ \\Lists
+ \\Feeds
+ \\Edit
+ \\
+ , .{});
+ }
+
+ try res.write("
", .{});
+}
+fn write_posts(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_list: PostList, options: struct {
+ 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);
+ 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 res.write("
", .{});
+ }
+ }
+}
+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);
+
+ 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);
+
+ 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_posts = try followed_user.posts.open(txn);
+
+ if (followed_posts.len() == 0) {
+ continue;
+ }
+
+ var followed_posts_it = followed_posts.reverse_iterator();
+ while (followed_posts_it.next()) |followed_post_id| {
+ const p = try posts.get(followed_post_id);
+
+ 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;
+ break;
+ }
+ }
+ }
+ if (newest_post) |post| {
+ newest_post_ids.append(post.id) catch break;
+ prev_newest_post = post;
+ } else {
+ break;
+ }
+ }
+
+ for (newest_post_ids.constSlice()) |post_id| {
+ try write_post(res, txn, logged_in, post_id, .{ .recurse = 1 });
+ try res.write("
", .{});
+ }
+}
+fn check_login(env: lmdb.Env, req: http.Request, res: *http.Response) !?Login {
+ var result: ?Login = null;
+
+ if (req.get_cookie("session_token")) |session_token_str| {
+ var remove_session_token = true;
+
+ if (std.fmt.parseUnsigned(SessionToken, session_token_str, 16) catch null) |session_token| {
+ // const session_token = try std.fmt.parseUnsigned(SessionToken, session_token_str, 10);
+ // const session_token = std.mem.bytesToValue(SessionToken, session_token_str);
+ if (Chirp.get_session_user_id(env, session_token) catch null) |user_id| {
+ const txn = try env.txn();
+ defer txn.abort();
+ const users = try Db.users(txn);
+
+ result = .{
+ .user = try users.get(user_id),
+ .session_token = session_token,
+ };
+
+ remove_session_token = false;
+ }
+ }
+
+ if (remove_session_token) {
+ try res.add_header(
+ "Set-Cookie",
+ .{"session_token=deleted; Expires=Thu, 01 Jan 1970 00:00:00 GMT"},
+ );
+ }
+ }
+
+ return result;
+}
+// }}}
+
+// GET {{{
+const GET = struct {
+ const Self = @This();
+
+ txn: lmdb.Txn,
+ req: http.Request,
+ res: *http.Response,
+ logged_in: ?Login,
+
+ fn handle(self: Self) !bool {
+ const ti = @typeInfo(Self);
+ 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));
+ if (fi.Fn.params.len == 1) {
+ try @call(.auto, f, .{self});
+ } else {
+ const arg_type = fi.Fn.params[1].type.?;
+ const arg_info = @typeInfo(arg_type);
+ var arg: arg_type = undefined;
+ const field = arg_info.Struct.fields[0];
+ if (self.req.target.len <= f_decl.name.len) {
+ return error.NoArgProvided;
+ }
+ const str = self.req.target[f_decl.name.len..self.req.target.len];
+ const field_ti = @typeInfo(field.type);
+ switch (field_ti) {
+ // TODO: maybe handle BoundedArray?
+ .Int => {
+ @field(arg, field.name) = try std.fmt.parseUnsigned(field.type, str, 16);
+ },
+ .Enum => {
+ @field(arg, field.name) = try parse_enum(field.type, str, 16);
+ },
+ else => {
+ @field(arg, field.name) = str;
+ },
+ }
+
+ try @call(.auto, f, .{ self, arg });
+ }
+ return true;
+ }
+ }
+ return false;
+ }
+
+ pub fn @"/user/"(self: Self, args: struct { username: []const u8 }) !void {
+ const user_ids = try Db.user_ids(self.txn);
+ if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
+ const users = try Db.users(self.txn);
+ const user = try users.get(user_id);
+
+ try write_profile(self.res, self.txn, self.logged_in, user);
+
+ try write_posts(self.res, self.txn, self.logged_in, user.posts, .{
+ .show_posts = true,
+ .show_quotes = false,
+ .show_comments = false,
+ });
+ } else |err| {
+ try self.res.write(
+ \\User not found [{}]
+ , .{err});
+ }
+ }
+ pub fn @"/comments/"(self: Self, args: struct { username: []const u8 }) !void {
+ const user_ids = try Db.user_ids(self.txn);
+ if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
+ const users = try Db.users(self.txn);
+ const user = try users.get(user_id);
+
+ try write_profile(self.res, self.txn, self.logged_in, user);
+
+ try write_posts(self.res, self.txn, self.logged_in, user.posts, .{
+ .show_posts = false,
+ .show_quotes = false,
+ .show_comments = true,
});
+ } else |err| {
+ try self.res.write(
+ \\User not found [{}]
+ , .{err});
+ }
+ }
+ pub fn @"/quotes/"(self: Self, args: struct { username: []const u8 }) !void {
+ const user_ids = try Db.user_ids(self.txn);
+ if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
+ const users = try Db.users(self.txn);
+ const user = try users.get(user_id);
+
+ try write_profile(self.res, self.txn, self.logged_in, user);
+
+ try write_posts(self.res, self.txn, self.logged_in, user.posts, .{
+ .show_posts = false,
+ .show_quotes = true,
+ .show_comments = false,
+ });
+ } else |err| {
+ try self.res.write(
+ \\User not found [{}]
+ , .{err});
+ }
+ }
+ pub fn @"/all/"(self: Self, args: struct { username: []const u8 }) !void {
+ const user_ids = try Db.user_ids(self.txn);
+ if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
+ const users = try Db.users(self.txn);
+ const user = try users.get(user_id);
+
+ try write_profile(self.res, self.txn, self.logged_in, user);
+
+ try write_posts(self.res, self.txn, self.logged_in, user.posts, .{
+ .show_posts = true,
+ .show_quotes = true,
+ .show_comments = true,
+ });
+ } else |err| {
+ try self.res.write(
+ \\User not found [{}]
+ , .{err});
+ }
+ }
+ pub fn @"/following/"(self: Self, args: struct { username: []const u8 }) !void {
+ const user_ids = try Db.user_ids(self.txn);
+ if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
+ const users = try Db.users(self.txn);
+ const user = try users.get(user_id);
+
+ const following = try user.following.open(self.txn);
+ var it = following.iterator();
+
+ 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);
+
+ try self.res.write(
+ \\{s}
+ , .{ following_user.name.constSlice(), following_user.display_name.constSlice() });
+ }
+ } else |err| {
+ try self.res.write(
+ \\User not found [{}]
+ , .{err});
+ }
+ }
+ pub fn @"/followers/"(self: Self, args: struct { username: []const u8 }) !void {
+ const user_ids = try Db.user_ids(self.txn);
+ if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
+ const users = try Db.users(self.txn);
+ const user = try users.get(user_id);
+
+ const followers = try user.followers.open(self.txn);
+ var it = followers.iterator();
+
+ 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);
+
+ try self.res.write(
+ \\{s}
+ , .{ follower_user.name.constSlice(), follower_user.display_name.constSlice() });
+ }
+ } else |err| {
+ try self.res.write(
+ \\User not found [{}]
+ , .{err});
+ }
+ }
+ pub fn @"/post/"(self: Self, args: struct { post_id: PostId }) !void {
+ try write_post(self.res, self.txn, self.logged_in, args.post_id, .{
+ .recurse = 3, // TODO: factor out
+ .show_comment_field = true,
+ });
+ }
+ 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);
+
+ const referer = if (self.req.get_header("Referer")) |ref| ref else self.req.target;
+
+ if (self.logged_in != null) {
+ try html_form(self.res, "/quote", .{
+ .{ "type=\"hidden\" name=\"referer\" value=\"{s}\"", .{referer} },
+ .{ "type=\"hidden\" name=\"post_id\" value=\"{x}\"", .{@intFromEnum(post.id)} },
+ "type=\"text\" name=\"text\" placeholder=\"Text\"",
+ "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("
", .{});
+ }
+ }
+ 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 }, .{
+ .show_posts = true,
+ .show_quotes = true,
+ .show_comments = true,
+ });
+ }
+ pub fn @"/lists"(self: Self) !void {
+ if (self.logged_in) |login| {
+ const post_lists_view = try login.user.post_lists.open(self.txn);
+
+ try html_form(self.res, "/create_list", .{
+ "type=\"text\" name=\"name\"",
+ "type=\"submit\" value=\"Add\"",
+ });
+
+ try self.res.write("
", .{});
+
+ var it = post_lists_view.iterator();
+ while (it.next()) |kv| {
+ const name = kv.val.name;
+ const post_list = kv.val.list;
+ try self.res.write(
+ \\{s}
+ , .{ post_list.idx.?, name.constSlice() });
+ try html_form(self.res, "/delete_list", .{
+ .{ "type=\"hidden\" name=\"list_id\" value=\"{x}\"", .{kv.key} },
+ "type=\"submit\" value=\"Delete\"",
+ });
+ try self.res.write("
", .{});
+ }
} else {
- try html_form(res, "/downvote/{}", .{@intFromEnum(post_id)}, .{
- .{ "type=\"submit\" value=\"⬇ {}\"", .{p.downvotes.len} },
+ try self.res.write("not logged in", .{});
+ }
+ }
+ pub fn @"/feed/"(self: Self, args: struct { feed_id: UserList.Index }) !void {
+ try write_timeline(self.res, self.txn, self.logged_in, UserList{ .idx = args.feed_id });
+ }
+ pub fn @"/feeds"(self: Self) !void {
+ if (self.logged_in) |login| {
+ const feeds_view = try login.user.feeds.open(self.txn);
+
+ try html_form(self.res, "/create_feed", .{
+ "type=\"text\" name=\"name\"",
+ "type=\"submit\" value=\"Add\"",
});
+
+ try self.res.write("
", .{});
+
+ var it = feeds_view.iterator();
+ while (it.next()) |kv| {
+ const name = kv.val.name;
+ const user_list = kv.val.list;
+ try self.res.write(
+ \\{s}
+ , .{ user_list.idx.?, name.constSlice() });
+ try html_form(self.res, "/delete_feed", .{
+ .{ "type=\"hidden\" name=\"list_id\" value=\"{x}\"", .{kv.key} },
+ "type=\"submit\" value=\"Delete\"",
+ });
+ try self.res.write("
", .{});
+ }
+ } else {
+ try self.res.write("not logged in", .{});
}
- try res.write(
- \\💭 {}
- \\
Username: ", .{});
+ try html_form(self.res, "/set_username", .{
+ .{ "type=\"text\" name=\"username\" placeholder=\"{s}\"", .{login.user.name.constSlice()} },
+ "type=\"submit\" value=\"Change\"",
+ });
+ try self.res.write("
Display Name: ", .{});
+ try html_form(self.res, "/set_display_name", .{
+ .{ "type=\"text\" name=\"display_name\" placeholder=\"{s}\"", .{login.user.display_name.constSlice()} },
+ "type=\"submit\" value=\"Change\"",
+ });
+ try self.res.write("
Password: ", .{});
+ try html_form(self.res, "/set_password", .{
+ "type=\"text\" name=\"password\"",
+ "type=\"submit\" value=\"Change\"",
+ });
+ } else {
+ try self.res.write("not logged in", .{});
+ }
+ }
+ pub fn @"/"(self: Self) !void {
+ if (self.logged_in) |login| {
+ try write_timeline(self.res, self.txn, self.logged_in, login.user.following);
+ } else {
+ // TODO: generic home
+ try self.res.write("Homepage", .{});
+ }
+ }
+};
+// }}}
+
+// POST {{{
+const POST = struct {
+ const Self = @This();
+
+ env: lmdb.Env,
+ req: http.Request,
+ res: *http.Response,
+ logged_in: ?Login,
+
+ pub fn handle(self: Self) !bool {
+ const ti = @typeInfo(Self);
+ 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 (fi.Fn.params.len == 1) {
+ _ = try @call(.auto, f, .{self});
+ } else {
+ const args_type = fi.Fn.params[fi.Fn.params.len - 1].type.?;
+ const argsi = @typeInfo(args_type);
+ var args: args_type = undefined;
+ 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) {
+ .Int => {
+ @field(args, field.name) = try std.fmt.parseUnsigned(field.type, str, 16);
+ },
+ .Enum => {
+ @field(args, field.name) = try parse_enum(field.type, str, 16);
+ },
+ else => {
+ @field(args, field.name) = str;
+ },
+ }
+ }
+ try @call(.auto, f, .{ self, args });
+ }
+ return true;
+ }
+ }
+ return false;
+ }
+
+ pub fn @"/register"(self: Self, args: struct { username: []const u8, password: []const u8 }) !void {
+ // TODO: handle args not supplied
+ std.debug.print("New user: {s} {s}\n", .{ args.username, args.password });
+ _ = try Chirp.register_user(self.env, args.username, args.password);
+ }
+ pub fn @"/login"(self: Self, args: struct { username: []const u8, password: []const u8 }) !void {
+ // TODO: handle args not supplied
+ std.debug.print("New login: {s} {s}\n", .{ args.username, args.password });
+ if (Chirp.login_user(self.env, args.username, args.password)) |session_token| {
+ self.res.status = .see_other;
+ try self.res.add_header(
+ "Set-Cookie",
+ .{ "session_token={x}; HttpOnly", .{session_token} },
+ );
+ } else |err| {
+ std.debug.print("login_user err: {}\n", .{err});
+ }
+ }
+ pub fn @"/logout"(self: Self) !void {
+ if (self.logged_in) |login| {
+ try Chirp.logout_user(self.env, login.session_token);
+
+ try self.res.add_header(
+ "Set-Cookie",
+ .{"session_token=deleted; Expires=Thu, 01 Jan 1970 00:00:00 GMT"},
+ );
+ }
+ }
+ pub fn @"/set_username"(self: Self, args: struct { username: []const u8 }) !void {
+ const login = self.logged_in orelse return error.NotLoggedIn;
+ const username = try Username.fromSlice(args.username);
+
+ const txn = try self.env.txn();
+ defer txn.commit() catch {};
+
+ const user_ids = try Db.user_ids(txn);
+
+ 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);
+ var user = login.user;
+ user.name = username;
+ try users.put(login.user.id, user);
+ }
+ }
+ pub fn @"/set_display_name"(self: Self, args: struct { display_name: []const u8 }) !void {
+ const login = self.logged_in orelse return error.NotLoggedIn;
+ const display_name = try DisplayName.fromSlice(args.display_name);
+
+ const txn = try self.env.txn();
+ defer txn.commit() catch {};
+
+ const users = try Db.users(txn);
+ var user = login.user;
+ user.display_name = display_name;
+ 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 {};
+
+ const users = try Db.users(txn);
+ var user = login.user;
+ user.password_hash = try Chirp.hash_password(args.password);
+ try users.put(login.user.id, user);
+ }
+ pub fn @"/post"(self: Self) !void {
+ if (self.logged_in) |login| {
+ const text = self.req.get_value("text").?;
+ const has_referer = self.req.get_value("referer");
+
+ try Chirp.post(self.env, login.user.id, text);
+
+ if (has_referer) |r| {
+ const decoded = try decode(r);
+ try self.res.redirect(decoded.constSlice());
+ }
+ }
+ }
+ pub fn @"/comment"(self: Self) !void {
+ if (self.logged_in) |login| {
+ const text = self.req.get_value("text") orelse return error.NoText;
+ const post_id_str = self.req.get_value("post_id") orelse return error.NoPostId;
+ const post_id = try parse_enum(PostId, post_id_str, 16);
+
+ try Chirp.comment(self.env, login.user.id, post_id, text);
+ }
+ }
+ pub fn @"/quote"(self: Self) !void {
+ if (self.logged_in) |login| {
+ const text = self.req.get_value("text") orelse return error.NoText;
+ const post_id_str = self.req.get_value("post_id") orelse return error.NoPostId;
+ const has_referer = self.req.get_value("referer");
+
+ const post_id = try parse_enum(PostId, post_id_str, 16);
+
+ try Chirp.quote(self.env, login.user.id, post_id, text);
+
+ if (has_referer) |r| {
+ const decoded = try decode(r);
+ try self.res.redirect(decoded.constSlice());
+ }
+ }
+ }
+ // TODO: add arguments instead of parsing manually
+ pub fn @"/create_list"(self: Self) !void {
+ if (self.logged_in) |login| {
+ const name_str = self.req.get_value("name") orelse return error.NoName;
+ const name = try Name.fromSlice(name_str);
+ // TODO: decode name
+
+ var txn = try self.env.txn();
+ const postlist = try PostList.init(txn);
+ try txn.commit();
+
+ txn = try self.env.txn();
+ var post_lists_view = try login.user.post_lists.open(txn);
+ _ = try post_lists_view.append(.{ .name = name, .list = postlist });
+ try txn.commit();
+ }
+ }
+ pub fn @"/delete_list"(self: Self, args: struct { list_id: PostList.Index }) !void {
+ if (self.logged_in) |login| {
+ var post_list: ?PostList = null;
+ {
+ const txn = try self.env.txn();
+ defer txn.commit() catch {};
+ var post_lists_view = try login.user.post_lists.open(txn);
+ post_list = (try post_lists_view.get(args.list_id)).list;
+ try post_lists_view.del(args.list_id);
+ }
+ if (post_list != null) {
+ const txn = try self.env.txn();
+ defer txn.commit() catch {};
+ var list_view = try post_list.?.open(txn);
+ try list_view.clear();
+ }
+ }
+ }
+ pub fn @"/list_add"(self: Self, args: struct { list_id: PostList.Index, post_id: PostId }) !void {
+ if (self.logged_in) |login| {
+ _ = login;
+
+ const txn = try self.env.txn();
+ defer txn.commit() catch {};
+
+ const post_list = PostList{ .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);
+ } else {
+ try post_list_view.append(args.post_id);
+ }
+ }
+ }
+ pub fn @"/create_feed"(self: Self) !void {
+ if (self.logged_in) |login| {
+ const name_str = self.req.get_value("name") orelse return error.NoName;
+ const name = try Name.fromSlice(name_str);
+
+ var txn = try self.env.txn();
+ const userlist = try UserList.init(txn);
+ try txn.commit();
+
+ txn = try self.env.txn();
+ var feeds_view = try login.user.feeds.open(txn);
+ _ = try feeds_view.append(.{ .name = name, .list = userlist });
+ try txn.commit();
+ }
+ }
+ pub fn @"/delete_feed"(self: Self, args: struct { list_id: UserList.Index }) !void {
+ if (self.logged_in) |login| {
+ var user_list: ?UserList = null;
+
+ {
+ const txn = try self.env.txn();
+ defer txn.commit() catch {};
+ var feeds_view = try login.user.feeds.open(txn);
+ user_list = (try feeds_view.get(args.list_id)).list;
+ try feeds_view.del(args.list_id);
+ }
+ if (user_list != null) {
+ const txn = try self.env.txn();
+ defer txn.commit() catch {};
+ var list_view = try user_list.?.open(txn);
+ try list_view.clear();
+ }
+ }
+ }
+ pub fn @"/feed_add"(self: Self, args: struct { feed_id: UserList.Index, user_id: UserId }) !void {
+ if (self.logged_in) |login| {
+ _ = login;
+
+ const txn = try self.env.txn();
+ defer txn.commit() catch {};
+
+ const user_list = UserList{ .idx = args.feed_id };
+ var user_list_view = try user_list.open(txn);
+ if (try user_list_view.has(args.user_id)) {
+ try user_list_view.del(args.user_id);
+ } else {
+ try user_list_view.append(args.user_id);
+ }
+ }
+ }
+ pub fn @"/upvote"(self: Self) !void {
+ const login = self.logged_in orelse return error.NotLoggedIn;
+
+ const post_id_str = self.req.get_value("post_id") orelse return error.NoPostId;
+ const post_id: PostId = @enumFromInt(try std.fmt.parseUnsigned(u64, post_id_str, 16));
+
+ try Chirp.vote(self.env, post_id, login.user.id, .Up);
+ }
+ pub fn @"/downvote"(self: Self) !void {
+ const login = self.logged_in orelse return error.NotLoggedIn;
+
+ const post_id_str = self.req.get_value("post_id") orelse return error.NoPostId;
+ const post_id: PostId = @enumFromInt(try std.fmt.parseUnsigned(u64, post_id_str, 16));
+
+ try Chirp.vote(self.env, post_id, login.user.id, .Down);
+ }
+ pub fn @"/follow"(self: Self) !void {
+ const login = self.logged_in orelse return error.NotLoggedIn;
+
+ const user_id_str = self.req.get_value("user_id") orelse return error.NoUserId;
+ const user_id: UserId = @enumFromInt(try std.fmt.parseUnsigned(u64, user_id_str, 16));
+
+ try Chirp.follow(self.env, login.user.id, user_id);
+ }
+ pub fn @"/quit"(self: Self) !void {
+ if (self.req.get_header("Referer")) |ref| {
+ try self.res.redirect(ref);
+ } else {
+ try self.res.redirect("/");
+ }
+ try self.res.send();
+ // break :accept;
+ }
+};
// }}}
fn list_users(env: lmdb.Env) !void {
const txn = try env.txn();
defer txn.abort();
- // const users = try Db.users(&txn);
- const users = try txn.dbi("users", UserId, User);
- var cursor = try users.cursor();
-
- var key: UserId = undefined;
- var user_maybe = cursor.get(&key, .First);
-
- while (user_maybe) |*user| {
- std.debug.print("[{}] {s}\n", .{ key, user.username.constSlice() });
+ const users = try Db.users(txn);
+ var it = try users.iterator();
- user_maybe = cursor.get(&key, .Next);
+ while (it.next()) |kv| {
+ const key = kv.key;
+ const user = kv.val;
+ std.debug.print("[{}] {s}\n", .{ key, user.name.constSlice() });
}
}
fn list_user_ids(env: lmdb.Env) !void {
const txn = try env.txn();
defer txn.abort();
- const user_ids = try Db.user_ids(&txn);
- var cursor = try user_ids.cursor();
+ const user_ids = try Db.user_ids(txn);
+ var it = try user_ids.iterator();
- var key: Username = undefined;
- var user_id_maybe = cursor.get(&key, .First);
-
- while (user_id_maybe) |user_id| {
+ while (it.next()) |kv| {
+ const key = kv.key;
+ const user_id = kv.val;
std.debug.print("[{s}] {}\n", .{ key.constSlice(), user_id });
-
- user_id_maybe = cursor.get(&key, .Next);
}
}
@@ -548,16 +1476,13 @@ fn list_sessions(env: lmdb.Env) !void {
const txn = try env.txn();
defer txn.abort();
- const sessions = try Db.sessions(&txn);
- var cursor = try sessions.cursor();
-
- var key: SessionToken = undefined;
- var user_id_maybe = cursor.get(&key, .First);
+ const sessions = try Db.sessions(txn);
+ var it = try sessions.iterator();
- while (user_id_maybe) |user_id| {
- std.debug.print("[{s}] {}\n", .{ key, user_id });
-
- user_id_maybe = cursor.get(&key, .Next);
+ while (it.next()) |kv| {
+ const key = kv.key;
+ const user_id = kv.val;
+ std.debug.print("[{x}] {}\n", .{ key, user_id });
}
}
@@ -565,22 +1490,24 @@ fn list_posts(env: lmdb.Env) !void {
const txn = try env.txn();
defer txn.abort();
- const posts = try Db.posts(&txn);
- var cursor = try posts.cursor();
-
- var key: PostId = undefined;
- var post_maybe = cursor.get(&key, .First);
-
- while (post_maybe) |p| {
- std.debug.print("[{}] {s}\n", .{ key, p.text.constSlice() });
+ const posts = try Db.posts(txn);
+ var it = try posts.iterator();
- post_maybe = cursor.get(&key, .Next);
+ while (it.next()) |kv| {
+ const key = kv.key;
+ const post = kv.val;
+ std.debug.print("[{}] {s}\n", .{ key, post.text.constSlice() });
}
}
const ReqBufferSize = 4096;
-const ResHeadBufferSize = 1024 * 16;
-const ResBodyBufferSize = 1024 * 16;
+const ResHeadBufferSize = 1024 * 64;
+const ResBodyBufferSize = 1024 * 64;
+
+// TODO: static?
+var req_buffer: [ReqBufferSize]u8 = undefined;
+var res_head_buffer: [ResHeadBufferSize]u8 = undefined;
+var res_body_buffer: [ResBodyBufferSize]u8 = undefined;
pub fn main() !void {
// server
@@ -600,7 +1527,15 @@ pub fn main() !void {
std.debug.print("Posts:\n", .{});
try list_posts(env);
- try handle_connection(&server, &env);
+ while (true) {
+ server.wait();
+ while (true) {
+ const req = (server.next_request(&req_buffer) catch break) orelse break;
+ handle_request(env, req) catch {
+ try handle_error(env, req);
+ };
+ }
+ }
// const ThreadCount = 1;
// var ts: [ThreadCount]std.Thread = undefined;
@@ -614,223 +1549,64 @@ pub fn main() !void {
std.debug.print("done\n", .{});
}
-fn handle_connection(server: *http.Server, env: *lmdb.Env) !void {
- // TODO: static?
- var req_buffer: [ReqBufferSize]u8 = undefined;
- var res_head_buffer: [ResHeadBufferSize]u8 = undefined;
- var res_body_buffer: [ResBodyBufferSize]u8 = undefined;
-
- accept: while (true) {
- server.wait();
-
- while (try server.next_request(&req_buffer)) |req| {
- // std.debug.print("[{}]: {s}\n", .{ req.method, req.target });
-
- // reponse
- var res = http.Response.init(req.fd, &res_head_buffer, &res_body_buffer);
-
- // check session token
- var logged_in: ?Login = null;
-
- if (req.get_cookie("session_token")) |session_token_str| {
- var session_token: SessionToken = undefined;
- std.mem.copyForwards(u8, &session_token, session_token_str);
- // const session_token = try std.fmt.parseUnsigned(SessionToken, session_token_str, 10);
- // const session_token = std.mem.bytesToValue(SessionToken, session_token_str);
- if (get_session_user_id(env, session_token)) |user_id| {
- const txn = try env.txn();
- defer txn.abort();
- const users = try Db.users(&txn);
-
- logged_in = .{
- .user = users.get(user_id) orelse return error.UserNotFound,
- .user_id = user_id,
- .session_token = session_token,
- };
- } else |err| {
- std.debug.print("get_session_user err: {}\n", .{err});
-
- try res.add_header(
- "Set-Cookie",
- .{"session_token=deleted; Expires=Thu, 01 Jan 1970 00:00:00 GMT"},
- );
- }
- }
-
- // html
- if (req.method == .GET) {
- try write_header(&res, logged_in);
-
- if (std.mem.eql(u8, req.target, "/register")) {
- try res.write(
- \\
- , .{});
- try res.send();
- } else if (std.mem.eql(u8, req.target, "/login")) {
- try res.write(
- \\
- , .{});
- try res.send();
- } else if (std.mem.startsWith(u8, req.target, "/user/")) {
- const username = req.target[6..req.target.len];
-
- const txn = try env.txn();
- defer txn.abort();
-
- const user_ids = try Db.user_ids(&txn);
- if (user_ids.get(try Username.fromSlice(username))) |user_id| {
- const users = try Db.users(&txn);
- const user = users.get(user_id).?;
- try write_posts(&res, &txn, user, logged_in);
- } else {
- try res.write(
- \\User not found
- , .{});
- }
- try res.send();
- } else {
- if (logged_in) |login| {
- const user = (try get_user(env, login.user_id)).?;
-
- const txn = try env.txn();
- defer txn.abort();
-
- try write_posts(&res, &txn, user, logged_in);
-
- try res.send();
- } else {
- try res.write("[GET] {s}", .{req.target});
- try res.send();
- }
- }
- }
- // api
- else {
- if (std.mem.eql(u8, req.target, "/register")) {
- // TODO: handle args not supplied
- const username = req.get_value("username").?;
- const password = req.get_value("password").?;
-
- std.debug.print("New user: {s} {s}\n", .{ username, password });
- if (try register_user(env, username, password)) {
- try res.redirect("/login");
- } else {
- try res.redirect("/register");
- }
- try res.send();
- } else if (std.mem.eql(u8, req.target, "/login")) {
- // TODO: handle args not supplied
- const username = req.get_value("username").?;
- const password = req.get_value("password").?;
-
- std.debug.print("New login: {s} {s}\n", .{ username, password });
- if (login_user(env, username, password)) |session_token| {
- res.status = .see_other;
- try res.add_header(
- "Location",
- .{ "/user/{s}", .{username} },
- );
- try res.add_header(
- "Set-Cookie",
- .{ "session_token={s}; Secure; HttpOnly", .{session_token} },
- );
-
- try res.send();
- } else |err| {
- std.debug.print("login_user err: {}\n", .{err});
- try res.redirect("/login");
- try res.send();
- }
- } else if (std.mem.eql(u8, req.target, "/logout")) {
- if (logged_in) |login| {
- try logout_user(env, login.session_token);
-
- try res.add_header(
- "Set-Cookie",
- .{"session_token=deleted; Expires=Thu, 01 Jan 1970 00:00:00 GMT"},
- );
-
- try res.redirect("/");
- try res.send();
- }
- } else if (std.mem.eql(u8, req.target, "/post")) {
- if (logged_in) |login| {
- const text = req.get_value("text").?;
- try post(env, login.user_id, text);
-
- try res.redirect("/");
- try res.send();
- }
- } else if (std.mem.eql(u8, req.target, "/quit")) {
- try res.redirect("/");
- try res.send();
- break :accept;
- } else if (std.mem.startsWith(u8, req.target, "/upvote/")) {
- const login = logged_in orelse return error.NotLoggedIn;
-
- const post_id_str = req.target[8..req.target.len];
- const post_id: PostId = @enumFromInt(try std.fmt.parseUnsigned(u64, post_id_str, 10));
-
- try vote(env, post_id, login.user_id, .Up);
- try unvote(env, post_id, login.user_id, .Down);
-
- if (req.get_header("Referer")) |ref| {
- try res.redirect(ref);
- }
- try res.send();
- } else if (std.mem.startsWith(u8, req.target, "/downvote/")) {
- const login = logged_in orelse return error.NotLoggedIn;
-
- const post_id_str = req.target[10..req.target.len];
- const post_id: PostId = @enumFromInt(try std.fmt.parseUnsigned(u64, post_id_str, 10));
+fn handle_error(env: lmdb.Env, req: http.Request) !void {
+ _ = env;
+ var res = http.Response.init(req.fd, &res_head_buffer, &res_body_buffer);
+ try write_start(&res);
+ try res.write("Oops, something went terribly wrong there D:", .{});
+ try write_end(&res);
+ try res.send();
+}
+fn handle_request(env: lmdb.Env, req: http.Request) !void {
+ // std.debug.print("[{}]: {s}\n", .{ req.method, req.target });
+ // std.debug.print("[{}]: {s}\n", .{ req.method, req.head.? });
- try vote(env, post_id, login.user_id, .Down);
- try unvote(env, post_id, login.user_id, .Up);
+ // reponse
+ var res = http.Response.init(req.fd, &res_head_buffer, &res_body_buffer);
- if (req.get_header("Referer")) |ref| {
- try res.redirect(ref);
- }
- try res.send();
- } else if (std.mem.startsWith(u8, req.target, "/unupvote/")) {
- const login = logged_in orelse return error.NotLoggedIn;
+ // check session token
+ const logged_in: ?Login = try check_login(env, req, &res);
- const post_id_str = req.target[10..req.target.len];
- const post_id: PostId = @enumFromInt(try std.fmt.parseUnsigned(u64, post_id_str, 10));
+ // html
+ if (req.method == .GET) {
+ try write_start(&res);
+ try write_header(&res, logged_in);
- try unvote(env, post_id, login.user_id, .Up);
+ const txn = try env.txn();
+ defer txn.abort();
- if (req.get_header("Referer")) |ref| {
- try res.redirect(ref);
- }
- try res.send();
- } else if (std.mem.startsWith(u8, req.target, "/undownvote/")) {
- const login = logged_in orelse return error.NotLoggedIn;
-
- const post_id_str = req.target[12..req.target.len];
- const post_id: PostId = @enumFromInt(try std.fmt.parseUnsigned(u64, post_id_str, 10));
+ const get = GET{
+ .txn = txn,
+ .req = req,
+ .res = &res,
+ .logged_in = logged_in,
+ };
+ if (try get.handle()) {} else {
+ try res.redirect("/");
+ }
- try unvote(env, post_id, login.user_id, .Down);
+ try write_end(&res);
+ try res.send();
+ }
+ // api
+ else {
+ const post = POST{
+ .env = env,
+ .req = req,
+ .res = &res,
+ .logged_in = logged_in,
+ };
+ if (try post.handle()) {} else {
+ try res.write("
[POST] {s}
", .{req.target});
+ }
- if (req.get_header("Referer")) |ref| {
- try res.redirect(ref);
- }
- try res.send();
- } else {
- // try req.respond(
- // \\POST
- // , .{});
- try res.write("[POST] {s}
", .{req.target});
- try res.send();
- }
+ if (!res.has_header("Location")) {
+ if (req.get_header("Referer")) |ref| {
+ try res.redirect(ref);
+ } else {
+ try res.redirect("/");
}
}
+ try res.send();
}
}