╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ web.zig ──────────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
🬐 🬠 🬞🬂🬏 🬟 🬑 🬟 🬑 ╭7fcb7c5a..╮ 7fcb7c5a.. see-em: 🬋🬋🬋 🬋🬋🬋 🬋 🬋 │files │ commits refs discuss issues new login 🬐 🬠 🬐 🬠 🬑 🬟 🬰 ╰──────────╯ (647) 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 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 │ ╰─────────────────────────────────╯
2690 2691 fn takeFlash(self: SessionStore, allocator: std.mem.Allocator, token_hex: []const u8) ?ui.Session.FormFeedback { 2692 if (!isToken(token_hex)) return null; 2693 const file = self.flash_dir.openFile(self.io, token_hex, .{ .mode = .read_only }) catch return null; 2694 defer self.flash_dir.deleteFile(self.io, token_hex) catch {}; 2695 defer file.close(self.io); 2696 2697 var storage: [4096]u8 = undefined; 2698 var reader = file.reader(self.io, &storage); 2699 const bytes = reader.interface.allocRemaining(allocator, .limited(512 * 1024)) catch return null; 2700 return std.json.parseFromSliceLeaky(ui.Session.FormFeedback, allocator, bytes, .{}) catch null; 2701 } 2702 2703 // resolve a cookie's token to its user_id. returns false (logged out) for a 2704 // missing, malformed, or unknown token. 2705 pub fn lookup(self: SessionStore, token_hex: []const u8, out: *[evt.event_id_size]u8) bool { 2706 if (!isToken(token_hex)) return false; 2707 const file = self.dir.openFile(self.io, token_hex, .{ .mode = .read_only }) catch return false; 2708 defer file.close(self.io); 2709 var storage: [evt.event_id_size]u8 = undefined; 2710 var file_reader = file.reader(self.io, &storage); 2711 file_reader.interface.readSliceAll(out) catch return false; 2712 return true; 2713 } 2714 2715 // revoke a session. a no-op for a missing or malformed token. 2716 pub fn remove(self: SessionStore, token_hex: []const u8) void { 2717 if (!isToken(token_hex)) return; 2718 self.dir.deleteFile(self.io, token_hex) catch {}; 2719 } 2720 2721 // leave `token_hex`'s session for visitors arriving without one. only the 2722 // `try` fixture writes one. the name can't collide with a session token. 2723 pub fn offerAutoLogin(self: SessionStore, token_hex: *const [token_hex_len]u8) !void { 2724 const file = try self.dir.createFile(self.io, auto_login_name, .{}); 2725 defer file.close(self.io); 2726 try file.writeStreamingAll(self.io, token_hex); 2727 } 2728 2729 pub fn autoLogin(self: SessionStore, out: *[token_hex_len]u8) bool { 2730 out.* = self.auto_login orelse return false; 2731 return true; 2732 } 2733 2734 const auto_login_name = "auto-login"; 2735 2736 // a token is exactly token_hex_len hex chars. validating before using the 2737 // value as a path keeps attacker-supplied cookies from escaping the 2738 // sessions dir (e.g. via "/" or ".." bytes). 2739 fn isToken(token_hex: []const u8) bool { 2740 if (token_hex.len != token_hex_len) return false; 2741 for (token_hex) |c| if (!std.ascii.isHex(c)) return false; 2742 return true; 2743 } 2744 }; 2745