summaryrefslogtreecommitdiffstats
path: root/src/ogRest.py
blob: 5d6c746c2083dcc17f56bc294f1a33b9e6c28925 (plain)
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
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
#
# Copyright (C) 2020-2021 Soleta Networks <info@soleta.eu>
#
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the
# Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.

import threading
import platform
import time
from enum import Enum
import json
import queue
import sys
import os
import signal
import logging
from logging.handlers import SysLogHandler

from src.restRequest import *
from src.log import OgError


class ThreadState(Enum):
	IDLE = 0
	BUSY = 1

class jsonBody():
	def __init__(self, dictionary=None):
		if dictionary:
			self.jsontree = dictionary
		else:
			self.jsontree = {}

	def add_element(self, key, value):
		self.jsontree[key] = value

	def dump(self):
		return json.dumps(self.jsontree)

class restResponse():
	def __init__(self, response, json_body=None, seq=None):
		self.msg = ''
		if response == ogResponses.BAD_REQUEST:
			self.msg = 'HTTP/1.0 400 Bad Request'
		elif response == ogResponses.IN_PROGRESS:
			self.msg = 'HTTP/1.0 202 Accepted'
		elif response == ogResponses.OK:
			self.msg = 'HTTP/1.0 200 OK'
		elif response == ogResponses.INTERNAL_ERR:
			self.msg = 'HTTP/1.0 500 Internal Server Error'
		elif response == ogResponses.UNAUTHORIZED:
			self.msg = 'HTTP/1.0 401 Unauthorized'
		elif response == ogResponses.SERVICE_UNAVAILABLE:
			self.msg = 'HTTP/1.0 503 Service Unavailable'
		elif response == ogResponses.EARLY_HINTS:
			self.msg = 'HTTP/1.0 103 Early Hints'
		else:
			return self.msg

		if response in {ogResponses.OK, ogResponses.IN_PROGRESS}:
			logging.debug(self.msg[:ogRest.LOG_LENGTH])
		else:
			logging.warn(self.msg[:ogRest.LOG_LENGTH])

		self.msg += '\r\n'

		if seq:
		    self.seq = seq
		    self.msg += 'X-Sequence: ' + str(seq)
		    self.msg += '\r\n'

		if json_body:
			self.msg += 'Content-Length: ' + str(len(json_body.dump()))
			self.msg += '\r\nContent-Type: application/json'
			self.msg += '\r\n\r\n' + json_body.dump()
		else:
			self.msg += 'Content-Length: 0\r\n' \
				    'Content-Type: application/json\r\n\r\n'


	def get(self):
		return self.msg

class ogThread():
	def shellrun(client, request, ogRest):
		if not request.getrun():
			response = restResponse(ogResponses.BAD_REQUEST, seq=client.seq)
			client.send(response.get())
			ogRest.state = ThreadState.IDLE
			return

		try:
			shellout = ogRest.operations.shellrun(request, ogRest)
		except Exception as e:
			ogRest.send_internal_server_error(client, exc=e)
			return

		if request.getEcho():
			json_body = jsonBody()
			json_body.add_element('out', shellout)
			response = restResponse(ogResponses.OK, json_body, seq=client.seq)
			client.send(response.get())
		else:
			response = restResponse(ogResponses.OK, seq=client.seq)
			client.send(response.get())

		ogRest.state = ThreadState.IDLE

	def poweroff(ogRest):
		time.sleep(2)
		ogRest.operations.poweroff()

	def reboot(ogRest):
		ogRest.operations.reboot()

	def session(client, request, ogRest):
		try:
			ogRest.operations.session(request, ogRest)
		except Exception as e:
			ogRest.send_internal_server_error(client, exc=e)
			return

		response = restResponse(ogResponses.OK, seq=client.seq)
		client.send(response.get())
		client.disconnect()

	def software(client, request, ogRest):
		try:
			software = ogRest.operations.software(request, ogRest)
		except Exception as e:
			ogRest.send_internal_server_error(client, exc=e)
			return

		json_body = jsonBody()
		json_body.add_element('partition', request.getPartition())
		json_body.add_element('software', software)

		response = restResponse(ogResponses.OK, json_body, seq=client.seq)
		client.send(response.get())
		ogRest.state = ThreadState.IDLE

	def hardware(client, ogRest):
		try:
			result = ogRest.operations.hardware(ogRest)
		except Exception as e:
			ogRest.send_internal_server_error(client, exc=e)
			return

		json_body = jsonBody()
		json_body.add_element('hardware', result)

		response = restResponse(ogResponses.OK, json_body, seq=client.seq)
		client.send(response.get())
		ogRest.state = ThreadState.IDLE

	def setup(client, request, ogRest):
		try:
			out = ogRest.operations.setup(request, ogRest)
		except Exception as e:
			ogRest.send_internal_server_error(client, exc=e)
			return

		json_body = jsonBody(out)

		response = restResponse(ogResponses.OK, json_body, seq=client.seq)
		client.send(response.get())
		ogRest.state = ThreadState.IDLE

	def image_restore(client, request, ogRest):
		try:
			ogRest.operations.image_restore(request, ogRest)
		except Exception as e:
			ogRest.send_internal_server_error(client, exc=e)
			return

		json_body = jsonBody()
		json_body.add_element('disk', request.getDisk())
		json_body.add_element('partition', request.getPartition())
		json_body.add_element('image_id', request.getId())

		response = restResponse(ogResponses.OK, json_body, seq=client.seq)
		client.send(response.get())
		ogRest.state = ThreadState.IDLE

	def image_create(client, request, ogRest):
		try:
			image_info = ogRest.operations.image_create(request, ogRest)
			software = ogRest.operations.software(request, ogRest)
		except Exception as e:
			ogRest.send_internal_server_error(client, exc=e)
			return

		kibi = 1024
		datasize = int(image_info.datasize) * kibi

		json_body = jsonBody()
		json_body.add_element('disk', request.getDisk())
		json_body.add_element('partition', request.getPartition())
		json_body.add_element('code', request.getCode())
		json_body.add_element('id', request.getId())
		json_body.add_element('name', request.getName())
		json_body.add_element('repository', request.getRepo())
		json_body.add_element('software', software)
		json_body.add_element('clonator', image_info.clonator)
		json_body.add_element('compressor', image_info.compressor)
		json_body.add_element('filesystem', image_info.filesystem)
		json_body.add_element('datasize', datasize)
		json_body.add_element('size', image_info.size)
		json_body.add_element('perms', image_info.perms)
		json_body.add_element('lastupdate', image_info.mtime)

		response = restResponse(ogResponses.OK, json_body, seq=client.seq)
		client.send(response.get())
		ogRest.state = ThreadState.IDLE

	def refresh(client, ogRest):
		try:
			out = ogRest.operations.refresh(ogRest)
		except Exception as e:
			ogRest.send_internal_server_error(client, exc=e)
			return

		json_body = jsonBody(out)

		response = restResponse(ogResponses.OK, json_body, seq=client.seq)
		client.send(response.get())
		ogRest.state = ThreadState.IDLE

class ogResponses(Enum):
	BAD_REQUEST=0
	IN_PROGRESS=1
	OK=2
	INTERNAL_ERR=3
	UNAUTHORIZED=4
	SERVICE_UNAVAILABLE=5
	EARLY_HINTS=6

class ogRest():
	LOG_LENGTH = 32

	def __init__(self, config):
		self.proc = None
		self.terminated = False
		self.state = ThreadState.IDLE
		self.CONFIG = config
		self.mode = self.CONFIG['opengnsys']['mode']
		self.samba_config = self.CONFIG['samba']

		if self.mode == 'live':
			from src.live.ogOperations import OgLiveOperations
			self.operations = OgLiveOperations(self.CONFIG)
		elif self.mode == 'virtual':
			from src.virtual.ogOperations import \
				OgVirtualOperations
			self.operations = OgVirtualOperations()
			threading.Thread(target=self.operations.check_vm_state_loop,
					 args=(self,)).start()
		elif self.mode == 'linux':
			from src.linux.ogOperations import OgLinuxOperations
			self.operations = OgLinuxOperations()
		elif self.mode == 'windows':
			from src.windows.ogOperations import OgWindowsOperations
			self.operations = OgWindowsOperations()
		else:
			raise OgError(f'Ogrest mode \'{self.mode}\'not supported')

	def send_internal_server_error(self, client, exc=None):
		if isinstance(exc, OgError):
			logging.error(exc)
		else:
			logging.exception(exc)
		response = restResponse(ogResponses.INTERNAL_ERR, seq=client.seq)
		client.send(response.get())
		self.state = ThreadState.IDLE

	def process_request(self, request, client):
		method = request.get_method()
		URI = request.get_uri()

		logging.debug('Incoming request: %s%s', method, URI[:ogRest.LOG_LENGTH])

		if (not "stop" in URI and
		    not "reboot" in URI and
		    not "poweroff" in URI and
		    not "probe" in URI):
			if self.state == ThreadState.BUSY:
				logging.warn('Request has been received '
					    'while ogClient is busy')
				response = restResponse(ogResponses.SERVICE_UNAVAILABLE, seq=client.seq)
				client.send(response.get())
				return
			else:
				self.state = ThreadState.BUSY

		if ("GET" in method):
			if "hardware" in URI:
				self.process_hardware(client)
			elif ("software" in URI):
				self.process_software(client, request)
			elif ("run/schedule" in URI):
				self.process_schedule(client)
			elif "refresh" in URI:
				self.process_refresh(client)
			else:
				logging.warn('Unsupported request: %s',
					    {URI[:ogRest.LOG_LENGTH]})
				response = restResponse(ogResponses.BAD_REQUEST, seq=client.seq)
				client.send(response.get())
				self.state = ThreadState.IDLE
		elif ("POST" in method):
			if ("poweroff" in URI):
				self.process_poweroff(client)
			elif "probe" in URI:
				self.process_probe(client)
			elif ("reboot" in URI):
				self.process_reboot(client)
			elif ("shell/run" in URI):
				self.process_shellrun(client, request)
			elif ("session" in URI):
				self.process_session(client, request)
			elif ("setup" in URI):
				self.process_setup(client, request)
			elif ("image/restore" in URI):
				self.process_imagerestore(client, request)
			elif ("stop" in URI):
				self.process_stop(client)
			elif ("image/create" in URI):
				self.process_imagecreate(client, request)
			else:
				logging.warn('Unsupported request: %s',
					    URI[:ogRest.LOG_LENGTH])
				response = restResponse(ogResponses.BAD_REQUEST, seq=client.seq)
				client.send(response.get())
				self.state = ThreadState.IDLE
		else:
			response = restResponse(ogResponses.BAD_REQUEST, seq=client.seq)
			client.send(response.get())
			self.state = ThreadState.IDLE

		return 0

	def kill_process(self):
		try:
			os.kill(self.proc.pid, signal.SIGTERM)
		except:
			pass

		time.sleep(2)
		try:
			os.kill(self.proc.pid, signal.SIGKILL)
		except:
			pass

		self.state = ThreadState.IDLE

	def process_reboot(self, client):
		response = restResponse(ogResponses.IN_PROGRESS, seq=client.seq)
		client.send(response.get())

		if self.mode != 'virtual':
			client.disconnect()
			if self.state == ThreadState.BUSY:
				self.kill_process()

		threading.Thread(target=ogThread.reboot, args=(self,)).start()

	def process_poweroff(self, client):
		response = restResponse(ogResponses.IN_PROGRESS, seq=client.seq)
		client.send(response.get())

		if self.mode != 'virtual':
			client.disconnect()
			if self.state == ThreadState.BUSY:
				self.kill_process()

		threading.Thread(target=ogThread.poweroff, args=(self,)).start()

	def process_probe(self, client):
		try:
			status = self.operations.probe(self)
		except:
			response = restResponse(ogResponses.INTERNAL_ERR, seq=client.seq)
			client.send(response.get())
			return

		json_body = jsonBody()
		for k, v in status.items():
			json_body.add_element(k, v)

		if self.state != ThreadState.BUSY:
			response = restResponse(ogResponses.OK, json_body, seq=client.seq)
		else:
			response = restResponse(ogResponses.IN_PROGRESS, json_body, seq=client.seq)

		client.send(response.get())

	def process_shellrun(self, client, request):
		threading.Thread(target=ogThread.shellrun, args=(client, request, self,)).start()

	def process_session(self, client, request):
		threading.Thread(target=ogThread.session, args=(client, request, self,)).start()

	def process_software(self, client, request):
		threading.Thread(target=ogThread.software, args=(client, request, self,)).start()

	def process_hardware(self, client):
		threading.Thread(target=ogThread.hardware, args=(client, self,)).start()

	def process_schedule(self, client):
		response = restResponse(ogResponses.OK, seq=client.seq)
		client.send(response.get())
		self.state = ThreadState.IDLE

	def process_setup(self, client, request):
		threading.Thread(target=ogThread.setup, args=(client, request, self,)).start()

	def process_imagerestore(self, client, request):
		threading.Thread(target=ogThread.image_restore, args=(client, request, self,)).start()

	def process_stop(self, client):
		client.disconnect()
		if self.state == ThreadState.BUSY:
			self.kill_process()
			self.terminated = True

		sys.exit(0)

	def process_imagecreate(self, client, request):
		threading.Thread(target=ogThread.image_create, args=(client, request, self,)).start()

	def process_refresh(self, client):
		threading.Thread(target=ogThread.refresh, args=(client, self,)).start()