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
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
|
"""Unit tests for tftpy."""
import unittest
import logging
import tftpy
import os
import time
log = tftpy.log
class TestTftpyClasses(unittest.TestCase):
def setUp(self):
tftpy.setLogLevel(logging.DEBUG)
def testTftpPacketRRQ(self):
log.debug("===> Running testcase testTftpPacketRRQ")
options = {}
rrq = tftpy.TftpPacketRRQ()
rrq.filename = 'myfilename'
rrq.mode = 'octet'
rrq.options = options
rrq.encode()
self.assert_(rrq.buffer != None, "Buffer populated")
rrq.decode()
self.assertEqual(rrq.filename, "myfilename", "Filename correct")
self.assertEqual(rrq.mode, "octet", "Mode correct")
self.assertEqual(rrq.options, options, "Options correct")
# repeat test with options
rrq.options = { 'blksize': '1024' }
rrq.filename = 'myfilename'
rrq.mode = 'octet'
rrq.encode()
self.assert_(rrq.buffer != None, "Buffer populated")
rrq.decode()
self.assertEqual(rrq.filename, "myfilename", "Filename correct")
self.assertEqual(rrq.mode, "octet", "Mode correct")
self.assertEqual(rrq.options['blksize'], '1024', "Blksize correct")
def testTftpPacketWRQ(self):
log.debug("===> Running test case testTftpPacketWRQ")
options = {}
wrq = tftpy.TftpPacketWRQ()
wrq.filename = 'myfilename'
wrq.mode = 'octet'
wrq.options = options
wrq.encode()
self.assert_(wrq.buffer != None, "Buffer populated")
wrq.decode()
self.assertEqual(wrq.opcode, 2, "Opcode correct")
self.assertEqual(wrq.filename, "myfilename", "Filename correct")
self.assertEqual(wrq.mode, "octet", "Mode correct")
self.assertEqual(wrq.options, options, "Options correct")
# repeat test with options
wrq.options = { 'blksize': '1024' }
wrq.filename = 'myfilename'
wrq.mode = 'octet'
wrq.encode()
self.assert_(wrq.buffer != None, "Buffer populated")
wrq.decode()
self.assertEqual(wrq.opcode, 2, "Opcode correct")
self.assertEqual(wrq.filename, "myfilename", "Filename correct")
self.assertEqual(wrq.mode, "octet", "Mode correct")
self.assertEqual(wrq.options['blksize'], '1024', "Blksize correct")
def testTftpPacketDAT(self):
log.debug("===> Running testcase testTftpPacketDAT")
dat = tftpy.TftpPacketDAT()
dat.blocknumber = 5
data = "this is some data"
dat.data = data
dat.encode()
self.assert_(dat.buffer != None, "Buffer populated")
dat.decode()
self.assertEqual(dat.opcode, 3, "DAT opcode is correct")
self.assertEqual(dat.blocknumber, 5, "Block number is correct")
self.assertEqual(dat.data, data, "DAT data is correct")
def testTftpPacketACK(self):
log.debug("===> Running testcase testTftpPacketACK")
ack = tftpy.TftpPacketACK()
ack.blocknumber = 6
ack.encode()
self.assert_(ack.buffer != None, "Buffer populated")
ack.decode()
self.assertEqual(ack.opcode, 4, "ACK opcode is correct")
self.assertEqual(ack.blocknumber, 6, "ACK blocknumber correct")
def testTftpPacketERR(self):
log.debug("===> Running testcase testTftpPacketERR")
err = tftpy.TftpPacketERR()
err.errorcode = 4
err.encode()
self.assert_(err.buffer != None, "Buffer populated")
err.decode()
self.assertEqual(err.opcode, 5, "ERR opcode is correct")
self.assertEqual(err.errorcode, 4, "ERR errorcode is correct")
def testTftpPacketOACK(self):
log.debug("===> Running testcase testTftpPacketOACK")
oack = tftpy.TftpPacketOACK()
# Test that if we make blksize a number, it comes back a string.
oack.options = { 'blksize': 2048 }
oack.encode()
self.assert_(oack.buffer != None, "Buffer populated")
oack.decode()
self.assertEqual(oack.opcode, 6, "OACK opcode is correct")
self.assertEqual(oack.options['blksize'],
'2048',
"OACK blksize option is correct")
# Test string to string
oack.options = { 'blksize': '4096' }
oack.encode()
self.assert_(oack.buffer != None, "Buffer populated")
oack.decode()
self.assertEqual(oack.opcode, 6, "OACK opcode is correct")
self.assertEqual(oack.options['blksize'],
'4096',
"OACK blksize option is correct")
def testTftpPacketFactory(self):
log.debug("===> Running testcase testTftpPacketFactory")
# Make sure that the correct class is created for the correct opcode.
classes = {
1: tftpy.TftpPacketRRQ,
2: tftpy.TftpPacketWRQ,
3: tftpy.TftpPacketDAT,
4: tftpy.TftpPacketACK,
5: tftpy.TftpPacketERR,
6: tftpy.TftpPacketOACK
}
factory = tftpy.TftpPacketFactory()
for opcode in classes:
self.assert_(isinstance(factory._TftpPacketFactory__create(opcode),
classes[opcode]),
"opcode %d returns the correct class" % opcode)
class TestTftpyState(unittest.TestCase):
def setUp(self):
tftpy.setLogLevel(logging.DEBUG)
def clientServerUploadOptions(self, options, transmitname=None):
"""Fire up a client and a server and do an upload."""
root = '/tmp'
home = os.path.dirname(os.path.abspath(__file__))
filename = '100KBFILE'
input_path = os.path.join(home, filename)
if transmitname:
filename = transmitname
server = tftpy.TftpServer(root)
client = tftpy.TftpClient('localhost',
20001,
options)
# Fork a server and run the client in this process.
child_pid = os.fork()
if child_pid:
# parent - let the server start
try:
time.sleep(1)
client.upload(filename,
input_path)
finally:
os.kill(child_pid, 15)
os.waitpid(child_pid, 0)
else:
server.listen('localhost', 20001)
def clientServerDownloadOptions(self, options):
"""Fire up a client and a server and do a download."""
root = os.path.dirname(os.path.abspath(__file__))
server = tftpy.TftpServer(root)
client = tftpy.TftpClient('localhost',
20001,
options)
# Fork a server and run the client in this process.
child_pid = os.fork()
if child_pid:
# parent - let the server start
try:
time.sleep(1)
client.download('100KBFILE',
'/tmp/out')
finally:
os.kill(child_pid, 15)
os.waitpid(child_pid, 0)
else:
server.listen('localhost', 20001)
def testClientServerNoOptions(self):
self.clientServerDownloadOptions({})
def testClientServerBlksize(self):
for blksize in [512, 1024, 2048, 4096]:
self.clientServerDownloadOptions({'blksize': blksize})
def testClientServerUploadNoOptions(self):
self.clientServerUploadOptions({})
def testClientServerUploadWithSubdirs(self):
self.clientServerUploadOptions({}, transmitname='foo/bar/100KBFILE')
def testClientServerUploadOptions(self):
for blksize in [512, 1024, 2048, 4096]:
self.clientServerUploadOptions({'blksize': blksize})
def testClientServerNoOptionsDelay(self):
tftpy.TftpStates.DELAY_BLOCK = 10
self.clientServerDownloadOptions({})
tftpy.TftpStates.DELAY_BLOCK = 0
def testServerNoOptions(self):
raddress = '127.0.0.2'
rport = 10000
timeout = 5
root = os.path.dirname(os.path.abspath(__file__))
# Testing without the dyn_func_file set.
serverstate = tftpy.TftpContextServer(raddress,
rport,
timeout,
root)
self.assertTrue( isinstance(serverstate,
tftpy.TftpContextServer) )
rrq = tftpy.TftpPacketRRQ()
rrq.filename = '100KBFILE'
rrq.mode = 'octet'
rrq.options = {}
# Start the download.
serverstate.start(rrq.encode().buffer)
# At a 512 byte blocksize, this should be 200 packets exactly.
for block in range(1, 201):
# Should be in expectack state.
self.assertTrue( isinstance(serverstate.state,
tftpy.TftpStateExpectACK) )
ack = tftpy.TftpPacketACK()
ack.blocknumber = block
serverstate.state = serverstate.state.handle(ack, raddress, rport)
# The last DAT packet should be empty, indicating a completed
# transfer.
ack = tftpy.TftpPacketACK()
ack.blocknumber = 201
finalstate = serverstate.state.handle(ack, raddress, rport)
self.assertTrue( finalstate is None )
def testServerNoOptionsSubdir(self):
raddress = '127.0.0.2'
rport = 10000
timeout = 5
root = os.path.dirname(os.path.abspath(__file__))
# Testing without the dyn_func_file set.
serverstate = tftpy.TftpContextServer(raddress,
rport,
timeout,
root)
self.assertTrue( isinstance(serverstate,
tftpy.TftpContextServer) )
rrq = tftpy.TftpPacketRRQ()
rrq.filename = 'foo/100KBFILE'
rrq.mode = 'octet'
rrq.options = {}
# Start the download.
serverstate.start(rrq.encode().buffer)
# At a 512 byte blocksize, this should be 200 packets exactly.
for block in range(1, 201):
# Should be in expectack state.
self.assertTrue( isinstance(serverstate.state,
tftpy.TftpStateExpectACK) )
ack = tftpy.TftpPacketACK()
ack.blocknumber = block
serverstate.state = serverstate.state.handle(ack, raddress, rport)
# The last DAT packet should be empty, indicating a completed
# transfer.
ack = tftpy.TftpPacketACK()
ack.blocknumber = 201
finalstate = serverstate.state.handle(ack, raddress, rport)
self.assertTrue( finalstate is None )
def testServerInsecurePath(self):
raddress = '127.0.0.2'
rport = 10000
timeout = 5
root = os.path.dirname(os.path.abspath(__file__))
serverstate = tftpy.TftpContextServer(raddress,
rport,
timeout,
root)
rrq = tftpy.TftpPacketRRQ()
rrq.filename = '../setup.py'
rrq.mode = 'octet'
rrq.options = {}
# Start the download.
self.assertRaises(tftpy.TftpException,
serverstate.start, rrq.encode().buffer)
def testServerSecurePath(self):
raddress = '127.0.0.2'
rport = 10000
timeout = 5
root = os.path.dirname(os.path.abspath(__file__))
serverstate = tftpy.TftpContextServer(raddress,
rport,
timeout,
root)
rrq = tftpy.TftpPacketRRQ()
rrq.filename = '100KBFILE'
rrq.mode = 'octet'
rrq.options = {}
# Start the download.
serverstate.start(rrq.encode().buffer)
# Should be in expectack state.
self.assertTrue(isinstance(serverstate.state,
tftpy.TftpStateExpectACK))
if __name__ == '__main__':
unittest.main()
|
