╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ web.zig ──────────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
🬐 🬠 🬞🬂🬏 🬟 🬑 🬟 🬑 ╭0cb27677..╮ 0cb27677.. haxy: 🬋🬋🬋 🬋🬋🬋 🬋 🬋 │files │ commits refs discuss issues patches new login 🬐 🬠 🬐 🬠 🬑 🬟 🬰 ╰──────────╯ (700) user
╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─╮ │http│ ssh │ │ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─╯
.. embed/ event/ test/ ui/ command.zig diff3.zig event.zig find.zig fork.zig lib.zig main.zig main_wasm.zig markdown.zig notify.zig patch.zig progress.zig push.zig search.zig search_commit.zig search_thread.zig serve.zig serve_common.zig serve_http.zig serve_ssh.zig serve_ssh_protocol.zig test.zig testnet.zig try.zig ui.zig ╭─────────────────────────────────╮ │web.zig │ ╰─────────────────────────────────╯
3049 try file.writeStreamingAll(self.io, json.written()); 3050 return token_hex; 3051 } 3052 3053 fn takeFlash(self: SessionStore, allocator: std.mem.Allocator, token_hex: []const u8) ?ui.Session.FormFeedback { 3054 if (!isToken(token_hex)) return null; 3055 const file = self.flash_dir.openFile(self.io, token_hex, .{ .mode = .read_only }) catch return null; 3056 defer self.flash_dir.deleteFile(self.io, token_hex) catch {}; 3057 defer file.close(self.io); 3058 3059 var storage: [4096]u8 = undefined; 3060 var reader = file.reader(self.io, &storage); 3061 const bytes = reader.interface.allocRemaining(allocator, .limited(512 * 1024)) catch return null; 3062 return std.json.parseFromSliceLeaky(ui.Session.FormFeedback, allocator, bytes, .{}) catch null; 3063 } 3064 3065 // resolve a cookie's token to its user_id. returns false (logged out) for a 3066 // missing, malformed, or unknown token. 3067 pub fn lookup(self: SessionStore, token_hex: []const u8, out: *[evt.event_id_size]u8) bool { 3068 if (!isToken(token_hex)) return false; 3069 const file = self.dir.openFile(self.io, token_hex, .{ .mode = .read_only }) catch return false; 3070 defer file.close(self.io); 3071 var storage: [evt.event_id_size]u8 = undefined; 3072 var file_reader = file.reader(self.io, &storage); 3073 file_reader.interface.readSliceAll(out) catch return false; 3074 return true; 3075 } 3076 3077 // revoke a session. a no-op for a missing or malformed token. 3078 pub fn remove(self: SessionStore, token_hex: []const u8) void { 3079 if (!isToken(token_hex)) return; 3080 self.dir.deleteFile(self.io, token_hex) catch {}; 3081 } 3082 3083 // leave `token_hex`'s session for visitors arriving without one. only the 3084 // `try` fixture writes one. the name can't collide with a session token. 3085 pub fn offerAutoLogin(self: SessionStore, token_hex: *const [token_hex_len]u8) !void { 3086 const file = try self.dir.createFile(self.io, auto_login_name, .{}); 3087 defer file.close(self.io); 3088 try file.writeStreamingAll(self.io, token_hex); 3089 } 3090 3091 pub fn autoLogin(self: SessionStore, out: *[token_hex_len]u8) bool { 3092 out.* = self.auto_login orelse return false; 3093 return true; 3094 } 3095 3096 const auto_login_name = "auto-login"; 3097 3098 // a token is exactly token_hex_len hex chars. validating before using the 3099 // value as a path keeps attacker-supplied cookies from escaping the 3100 // sessions dir (e.g. via "/" or ".." bytes). 3101 fn isToken(token_hex: []const u8) bool { 3102 if (token_hex.len != token_hex_len) return false; 3103 for (token_hex) |c| if (!std.ascii.isHex(c)) return false; 3104 return true; 3105 } 3106 }; 3107