File - medvednikov/v4


1 import time
2 import context
3 import net.mbedtls
4 
5 fn server() ! {
6     cfg := mbedtls.SSLConnectConfig{
7         cert:                   '-----BEGIN CERTIFICATE-----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\nMhj0zttiFHLAt9jGfyk6W57UNUja1e1ggftJJhs=\n-----END CERTIFICATE-----\n'
8         cert_key:               '-----BEGIN RSA PRIVATE KEY-----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\n-----END RSA PRIVATE KEY-----\n'
9         validate:               false
10         in_memory_verification: true
11     }
12     mut srv := mbedtls.new_ssl_listener('127.0.0.1:64443', cfg) or {
13         eprintln('Listen: ${err}')
14         return err
15     }
16     eprintln('[+] Listening')
17     mut cli := srv.accept() or {
18         eprintln('Accept: ${err}')
19         return err
20     }
21     eprintln('[+] Accepted connection')
22     cli.shutdown()!
23     // A second shutdown must be a harmless no-op (idempotent): SSLConn.shutdown
24     // marks the conn closed before freeing, so this returns the "not open" error
25     // here rather than double-freeing the mbedtls contexts (which would abort the
26     // process). This guards the worker-defer-vs-close_idle double-shutdown race.
27     mut second_shutdown_errored := false
28     cli.shutdown() or { second_shutdown_errored = true }
29     assert second_shutdown_errored, 'second shutdown should be a no-op returning an error, not a double-free'
30     eprintln('[+] Second shutdown was a clean no-op')
31 }
32 
33 @[if network ?]
34 fn test_shutdown_does_not_panic() {
35     _ := spawn server()
36     time.sleep(1 * time.second)
37     mut client := mbedtls.new_ssl_conn(validate: false)!
38     client.dial('127.0.0.1', 64443) or {
39         eprintln('Connect: ${err}')
40         return
41     }
42     eprintln('[+] Connected')
43     time.sleep(1 * time.second)
44     mut background := context.background()
45     mut ctx, cancel := context.with_timeout(mut background, 2 * time.second)
46     spawn fn () {
47         mut i := 0
48         for {
49             i++
50             print('\r${i}...')
51             flush_stdout()
52             time.sleep(1 * time.second)
53         }
54     }()
55     mut done := ctx.done()
56     for {
57         select {
58             _ := <-done {
59                 break
60             }
61         }
62     }
63 
64     eprintln('\nTimeout without panic - OK')
65 
66     assert true
67 }
68

1	import time
2	import context
3	import net.mbedtls
4
5	fn server() ! {
6	cfg := mbedtls.SSLConnectConfig{
7	cert: '-----BEGIN CERTIFICATE-----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\nMhj0zttiFHLAt9jGfyk6W57UNUja1e1ggftJJhs=\n-----END CERTIFICATE-----\n'
8	cert_key: '-----BEGIN RSA PRIVATE KEY-----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\n-----END RSA PRIVATE KEY-----\n'
9	validate: false
10	in_memory_verification: true
11	}
12	mut srv := mbedtls.new_ssl_listener('127.0.0.1:64443', cfg) or {
13	eprintln('Listen: ${err}')
14	return err
15	}
16	eprintln('[+] Listening')
17	mut cli := srv.accept() or {
18	eprintln('Accept: ${err}')
19	return err
20	}
21	eprintln('[+] Accepted connection')
22	cli.shutdown()!
23	// A second shutdown must be a harmless no-op (idempotent): SSLConn.shutdown
24	// marks the conn closed before freeing, so this returns the "not open" error
25	// here rather than double-freeing the mbedtls contexts (which would abort the
26	// process). This guards the worker-defer-vs-close_idle double-shutdown race.
27	mut second_shutdown_errored := false
28	cli.shutdown() or { second_shutdown_errored = true }
29	assert second_shutdown_errored, 'second shutdown should be a no-op returning an error, not a double-free'
30	eprintln('[+] Second shutdown was a clean no-op')
31	}
32
33	@[if network ?]
34	fn test_shutdown_does_not_panic() {
35	_ := spawn server()
36	time.sleep(1 * time.second)
37	mut client := mbedtls.new_ssl_conn(validate: false)!
38	client.dial('127.0.0.1', 64443) or {
39	eprintln('Connect: ${err}')
40	return
41	}
42	eprintln('[+] Connected')
43	time.sleep(1 * time.second)
44	mut background := context.background()
45	mut ctx, cancel := context.with_timeout(mut background, 2 * time.second)
46	spawn fn () {
47	mut i := 0
48	for {
49	i++
50	print('\r${i}...')
51	flush_stdout()
52	time.sleep(1 * time.second)
53	}
54	}()
55	mut done := ctx.done()
56	for {
57	select {
58	_ := <-done {
59	break
60	}
61	}
62	}
63
64	eprintln('\nTimeout without panic - OK')
65
66	assert true
67	}
68