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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102/// A single entry within our SSH entry cache. Our SSH entry cache/// stores which hosts we've sent our terminfo to so that we don't have/// to send it again. It doesn't store any sensitive information.const Entry = @This();
const std = @import("std");
hostname: []const u8,timestamp: i64,terminfo_version: []const u8,
pub fn parse(line: []const u8) ?Entry { const trimmed = std.mem.trim(u8, line, " \t\r\n"); if (trimmed.len == 0) return null;
// Parse format: hostname|timestamp|terminfo_version var iter = std.mem.tokenizeScalar(u8, trimmed, '|'); const hostname = iter.next() orelse return null; const timestamp_str = iter.next() orelse return null; const terminfo_version = iter.next() orelse "xterm-ghostty"; const timestamp = std.fmt.parseInt(i64, timestamp_str, 10) catch |err| { std.log.warn( "Invalid timestamp in cache entry: {s} err={}", .{ timestamp_str, err }, ); return null; };
return .{ .hostname = hostname, .timestamp = timestamp, .terminfo_version = terminfo_version, };}
pub const FormatError = std.Io.Writer.Error;
pub fn format(self: Entry, writer: *std.Io.Writer) FormatError!void { try writer.print( "{s}|{d}|{s}\n", .{ self.hostname, self.timestamp, self.terminfo_version }, );}
test "cache entry parsing valid formats" { const testing = std.testing;
const entry = Entry.parse("example.com|1640995200|xterm-ghostty").?; try testing.expectEqualStrings("example.com", entry.hostname); try testing.expectEqual(@as(i64, 1640995200), entry.timestamp); try testing.expectEqualStrings("xterm-ghostty", entry.terminfo_version);
// Test default terminfo version const entry_no_version = Entry.parse("test.com|1640995200").?; try testing.expectEqualStrings( "xterm-ghostty", entry_no_version.terminfo_version, );
// Test complex hostnames const complex_entry = Entry.parse("user@server.example.com|1640995200|xterm-ghostty").?; try testing.expectEqualStrings( "user@server.example.com", complex_entry.hostname, );}
test "cache entry parsing invalid formats" { const testing = std.testing;
try testing.expect(Entry.parse("") == null);
// Invalid format (no pipe) try testing.expect(Entry.parse("v1") == null);
// Missing timestamp try testing.expect(Entry.parse("example.com") == null);
// Invalid timestamp try testing.expect(Entry.parse("example.com|invalid") == null);
// Empty terminfo should default try testing.expect(Entry.parse("example.com|1640995200|") != null);}
test "cache entry parsing malformed data resilience" { const testing = std.testing;
// Extra pipes should not break parsing try testing.expect(Entry.parse("host|123|term|extra") != null);
// Whitespace handling try testing.expect(Entry.parse(" host|123|term ") != null); try testing.expect(Entry.parse("\n") == null); try testing.expect(Entry.parse(" \t \n") == null);
// Extremely large timestamp try testing.expect( Entry.parse("host|999999999999999999999999999999999999999999999999|xterm-ghostty") == null, );}