-
Notifications
You must be signed in to change notification settings - Fork 107
Expand file tree
/
Copy pathtest_dnssdresolve.py
More file actions
195 lines (144 loc) · 7.66 KB
/
Copy pathtest_dnssdresolve.py
File metadata and controls
195 lines (144 loc) · 7.66 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
import pytest
pytest.importorskip("dbus")
import dbus
import dnssdresolve
class DummyDevice:
def __init__(self):
self.id_dict = {'SN': ''}
def test_dns_sd_usb_ser_populates_sn():
resolver = dnssdresolve.DNSSDHostNamesResolver.__new__(dnssdresolve.DNSSDHostNamesResolver)
device = DummyDevice()
resolver._devices = {'dnssd://printer': device}
resolver._device_uri_by_name = {('printer', '_ipp._tcp', 'local'): 'dnssd://printer'}
resolver._unresolved = 1
resolver._reply_handler = lambda devices: None
resolver._reply('iface', 'proto', 'printer', '_ipp._tcp', 'local',
'printer.local', 0, '192.0.2.1', 631,
['usb_SER=34004H030206H', 'pdl=application/pdf'], 0)
assert device.id_dict['SN'] == '34004H030206H'
class DummyIPPUSBDevice:
def __init__(self, uri, device_class, serial, address='127.0.0.1'):
self.uri = uri
self.device_class = device_class
self.type = uri.split(':', 1)[0]
self.id_dict = {'SN': serial}
self.address = address
def test_ipp_usb_helper_suppresses_legacy_usb_when_serial_matches():
devices = [
DummyIPPUSBDevice('usb://Xerox/B235%20MFP?serial=34004H030206H&interface=1',
'direct', '34004H030206H'),
DummyIPPUSBDevice('ipp://Xerox(R)%20B235%20MFP%20(USB)._ipp._tcp.local/',
'network', '34004H030206H'),
]
filtered = dnssdresolve.suppress_legacy_usb_devices(devices)
assert [device.uri for device in filtered] == [
'ipp://Xerox(R)%20B235%20MFP%20(USB)._ipp._tcp.local/'
]
def test_ipp_usb_helper_keeps_usb_when_no_matching_ipp_usb_exists():
devices = [
DummyIPPUSBDevice('usb://Xerox/B235%20MFP?serial=34004H030206H&interface=1',
'direct', '34004H030206H'),
]
filtered = dnssdresolve.suppress_legacy_usb_devices(devices)
assert [device.uri for device in filtered] == [
'usb://Xerox/B235%20MFP?serial=34004H030206H&interface=1'
]
def test_ipp_usb_helper_leaves_lan_ipp_unchanged():
devices = [
DummyIPPUSBDevice('usb://Xerox/B235%20MFP?serial=34004H030206H&interface=1',
'direct', '34004H030206H'),
DummyIPPUSBDevice('ipp://printer.example.com/ipp/print',
'network', '34004H030206H', address='192.168.1.10'),
]
filtered = dnssdresolve.suppress_legacy_usb_devices(devices)
assert [device.uri for device in filtered] == [
'usb://Xerox/B235%20MFP?serial=34004H030206H&interface=1',
'ipp://printer.example.com/ipp/print',
]
def test_ipp_over_usb_uri_is_resolved_but_lan_ipp_is_not():
assert dnssdresolve.needs_service_resolution(
'ipp://Xerox(R)%20B235%20MFP%20(USB)._ipp._tcp.local/')
assert not dnssdresolve.needs_service_resolution(
'ipp://printer.example.com/ipp/print')
def test_ipp_over_usb_usb_ser_populates_sn():
uri = 'ipp://Xerox(R)%20B235%20MFP%20(USB)._ipp._tcp.local/'
resolver = dnssdresolve.DNSSDHostNamesResolver.__new__(dnssdresolve.DNSSDHostNamesResolver)
device = DummyDevice()
resolver._devices = {uri: device}
service = dnssdresolve._service_tuple_from_uri(uri)
resolver._device_uri_by_name = {service: uri}
resolver._unresolved = 1
resolver._reply_handler = lambda devices: None
resolver._reply('iface', 'proto', 'Xerox(R) B235 MFP (USB)', '_ipp._tcp', 'local',
'printer.local', 0, '192.0.2.1', 631,
['usb_SER=34004H030206H', 'pdl=application/pdf'], 0)
assert device.id_dict['SN'] == '34004H030206H'
def test_ipp_usb_cache_suppresses_previously_discovered_usb_when_serial_matches():
cache = dnssdresolve.LegacyUSBDeviceCache()
usb = DummyIPPUSBDevice('usb://Xerox/B235%20MFP?serial=34004H030206H&interface=1',
'direct', '34004H030206H')
ipp_usb = DummyIPPUSBDevice('ipp://Xerox(R)%20B235%20MFP%20(USB)._ipp._tcp.local/',
'network', '34004H030206H')
visible = dnssdresolve.suppress_legacy_usb_devices([usb], cache)
superseded = cache.superseded_usb_serials([ipp_usb])
assert superseded == {'34004H030206H'}
visible = [d for d in visible
if not (d.device_class == 'direct' and d.type == 'usb' and d.id_dict.get('SN', '') in superseded)]
visible.extend(dnssdresolve.suppress_legacy_usb_devices([ipp_usb], cache))
assert [device.uri for device in visible] == [
'ipp://Xerox(R)%20B235%20MFP%20(USB)._ipp._tcp.local/'
]
def test_ipp_usb_cache_keeps_both_devices_when_serials_differ():
cache = dnssdresolve.LegacyUSBDeviceCache()
usb = DummyIPPUSBDevice('usb://Xerox/B235%20MFP?serial=34004H030206H&interface=1',
'direct', '34004H030206H')
ipp_usb = DummyIPPUSBDevice('ipp://Xerox(R)%20B235%20MFP%20(USB)._ipp._tcp.local/',
'network', 'DIFFERENT')
visible = dnssdresolve.suppress_legacy_usb_devices([usb], cache)
superseded = cache.superseded_usb_serials([ipp_usb])
assert superseded == set()
visible.extend(dnssdresolve.suppress_legacy_usb_devices([ipp_usb], cache))
assert [device.uri for device in visible] == [
'usb://Xerox/B235%20MFP?serial=34004H030206H&interface=1',
'ipp://Xerox(R)%20B235%20MFP%20(USB)._ipp._tcp.local/',
]
def test_ipp_usb_cache_does_not_affect_lan_ipp():
cache = dnssdresolve.LegacyUSBDeviceCache()
usb = DummyIPPUSBDevice('usb://Xerox/B235%20MFP?serial=34004H030206H&interface=1',
'direct', '34004H030206H')
ipp_lan = DummyIPPUSBDevice('ipp://printer.example.com/ipp/print',
'network', '34004H030206H', address='192.168.1.10')
visible = dnssdresolve.suppress_legacy_usb_devices([usb], cache)
superseded = cache.superseded_usb_serials([ipp_lan])
assert superseded == set()
visible.extend(dnssdresolve.suppress_legacy_usb_devices([ipp_lan], cache))
assert [device.uri for device in visible] == [
'usb://Xerox/B235%20MFP?serial=34004H030206H&interface=1',
'ipp://printer.example.com/ipp/print',
]
def test_ipp_usb_cache_does_not_suppress_usb_without_serial():
cache = dnssdresolve.LegacyUSBDeviceCache()
usb = DummyIPPUSBDevice('usb://Xerox/B235%20MFP?serial=&interface=1',
'direct', '')
ipp_usb = DummyIPPUSBDevice('ipp://Xerox(R)%20B235%20MFP%20(USB)._ipp._tcp.local/',
'network', '34004H030206H')
visible = dnssdresolve.suppress_legacy_usb_devices([usb], cache)
superseded = cache.superseded_usb_serials([ipp_usb])
assert superseded == set()
visible.extend(dnssdresolve.suppress_legacy_usb_devices([ipp_usb], cache))
assert [device.uri for device in visible] == [
'usb://Xerox/B235%20MFP?serial=&interface=1',
'ipp://Xerox(R)%20B235%20MFP%20(USB)._ipp._tcp.local/',
]
def test_is_ipp_over_usb_device_127_0_0_1():
dev = DummyIPPUSBDevice('ipp://printer._ipp._tcp.local/', 'network', '', address='127.0.0.1')
assert dnssdresolve.is_ipp_over_usb_device(dev) is True
def test_is_ipp_over_usb_device_ipv6_loopback():
dev = DummyIPPUSBDevice('ipp://printer._ipp._tcp.local/', 'network', '', address='::1')
assert dnssdresolve.is_ipp_over_usb_device(dev) is True
def test_is_ipp_over_usb_device_lan_ip():
dev = DummyIPPUSBDevice('ipp://printer._ipp._tcp.local/', 'network', '', address='192.168.1.10')
assert dnssdresolve.is_ipp_over_usb_device(dev) is False
def test_is_ipp_over_usb_device_non_ipp_uri():
dev = DummyIPPUSBDevice('socket://printer._printer._tcp.local/', 'network', '', address='127.0.0.1')
assert dnssdresolve.is_ipp_over_usb_device(dev) is False