╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ serve_ssh.zig ────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
🬐 🬠 🬞🬂🬏 🬟 🬑 🬟 🬑 ╭89200f97..╮ 89200f97.. see-em: 🬋🬋🬋 🬋🬋🬋 🬋 🬋 │files │ commits refs discuss issues new login 🬐 🬠 🬐 🬠 🬑 🬟 🬰 ╰──────────╯ (623) 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
621 return .{ 622 .id = user_id[0..evt.event_id_size].*, 623 .author = .{ .name = user.event.name, .email = user.event.email }, 624 }; 625 } 626 627 fn isKeyInAuthorizedKeys(ssh_keys: []const u8, fingerprint: *const [ssh.fingerprint_len]u8) bool { 628 var it = std.mem.splitScalar(u8, ssh_keys, '\n'); 629 while (it.next()) |line| { 630 const fp = fingerprintOfAuthorizedKey(line) orelse continue; 631 if (std.mem.eql(u8, &fp, fingerprint)) return true; 632 } 633 return false; 634 } 635 636 // the SHA256 fingerprint of one authorized_keys line, or null if the line is 637 // blank or not a parseable "<type> <base64> [comment]" entry 638 fn fingerprintOfAuthorizedKey(line: []const u8) ?[ssh.fingerprint_len]u8 { 639 var it = std.mem.tokenizeAny(u8, line, " \t\r"); 640 _ = it.next() orelse return null; // key type 641 const blob_b64 = it.next() orelse return null; 642 643 const decoder = std.base64.standard.Decoder; 644 const blob_len = decoder.calcSizeForSlice(blob_b64) catch return null; 645 var blob_buf: [4096]u8 = undefined; 646 if (blob_len > blob_buf.len) return null; 647 decoder.decode(blob_buf[0..blob_len], blob_b64) catch return null; 648 649 return ssh.formatFingerprint(blob_buf[0..blob_len]); 650 } 651 652 fn writeError(sess: *ssh.SessionCtx, comptime msg: []const u8) !void { 653 const body = "ERR haxy ssh: " ++ msg; 654 var packet: [body.len + 4]u8 = undefined; 655 const line = try std.fmt.bufPrint(&packet, "{x:0>4}{s}", .{ packet.len, body }); 656 try sess.writeBytes(line); 657 try sess.exit(1); 658 } 659 660 test "parseGitCommand rejects malformed input" { 661 const allocator = std.testing.allocator; 662 try std.testing.expectError(error.InvalidCommand, parseGitCommand(allocator, "git-upload-pack")); 663 try std.testing.expectError(error.UnsupportedService, parseGitCommand(allocator, "ls -la")); 664 try std.testing.expectError(error.UnsupportedService, parseGitCommand(allocator, "git-fake-pack 'repo'")); 665 } 666 667 test "parseGitCommand happy paths" { 668 const allocator = std.testing.allocator; 669 670 { 671 const parsed = try parseGitCommand(allocator, "git-upload-pack 'some-repo'"); 672 defer parsed.deinit(allocator); 673 try std.testing.expectEqual(GitService.upload_pack, parsed.service); 674 try std.testing.expectEqualStrings("some-repo", parsed.dir); 675 } 676 { 677 const parsed = try parseGitCommand(allocator, "git-receive-pack 'user/proj'"); 678 defer parsed.deinit(allocator); 679 try std.testing.expectEqual(GitService.receive_pack, parsed.service); 680 try std.testing.expectEqualStrings("user/proj", parsed.dir); 681 } 682 { 683 const parsed = try parseGitCommand(allocator, "git-upload-pack repo"); 684 defer parsed.deinit(allocator); 685 try std.testing.expectEqual(GitService.upload_pack, parsed.service); 686 try std.testing.expectEqualStrings("repo", parsed.dir); 687 } 688 } 689