mirror of
https://github.com/lightpanda-io/browser.git
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e2a1ce623c
Our BrowsingContext currently supports 1 target. So we have a per-BC target_id. Previously, our target had 1 "frame" - our page. So we often treated the targetId as the frameId. But to work with frames, we need page-specific frameIds and loaderIds. This tries to clean up our ids (a little). frameIds are now ids derived from a new incrementing page.id. This page.id has to be passed around (via http Requests and through notifications) in order to properly generate messages with a frameId.
75 lines
2.4 KiB
Zig
75 lines
2.4 KiB
Zig
// Copyright (C) 2023-2025 Lightpanda (Selecy SAS)
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//
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// Francis Bouvier <francis@lightpanda.io>
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// Pierre Tachoire <pierre@lightpanda.io>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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const std = @import("std");
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const lp = @import("lightpanda");
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pub fn uuidv4(hex: []u8) void {
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lp.assert(hex.len == 36, "uuidv4.len", .{ .len = hex.len });
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var bin: [16]u8 = undefined;
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std.crypto.random.bytes(&bin);
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bin[6] = (bin[6] & 0x0f) | 0x40;
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bin[8] = (bin[8] & 0x3f) | 0x80;
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const alphabet = "0123456789abcdef";
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hex[8] = '-';
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hex[13] = '-';
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hex[18] = '-';
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hex[23] = '-';
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const encoded_pos = [16]u8{ 0, 2, 4, 6, 9, 11, 14, 16, 19, 21, 24, 26, 28, 30, 32, 34 };
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inline for (encoded_pos, 0..) |i, j| {
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hex[i + 0] = alphabet[bin[j] >> 4];
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hex[i + 1] = alphabet[bin[j] & 0x0f];
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}
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}
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const testing = std.testing;
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test "id: uuiv4" {
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const expectUUID = struct {
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fn expect(uuid: [36]u8) !void {
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for (uuid, 0..) |b, i| {
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switch (b) {
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'0'...'9', 'a'...'z' => {},
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'-' => {
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if (i != 8 and i != 13 and i != 18 and i != 23) {
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return error.InvalidEncoding;
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}
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},
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else => return error.InvalidHexEncoding,
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}
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}
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}
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}.expect;
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var arena = std.heap.ArenaAllocator.init(testing.allocator);
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defer arena.deinit();
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const allocator = arena.allocator();
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var seen = std.StringHashMapUnmanaged(void){};
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for (0..100) |_| {
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var hex: [36]u8 = undefined;
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uuidv4(&hex);
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try expectUUID(hex);
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try seen.put(allocator, try allocator.dupe(u8, &hex), {});
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}
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try testing.expectEqual(100, seen.count());
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}
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