summaryrefslogtreecommitdiff
path: root/src/services/vyos-http-api-server
blob: 97633577d316208af357c4931466edd40bae7f72 (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
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
#!/usr/share/vyos-http-api-tools/bin/python3
#
# Copyright (C) 2019-2024 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import os
import sys
import grp
import copy
import json
import logging
import signal
import traceback
import threading
from enum import Enum

from time import sleep
from typing import List, Union, Callable, Dict, Self

from fastapi import FastAPI, Depends, Request, Response, HTTPException
from fastapi import BackgroundTasks
from fastapi.responses import HTMLResponse
from fastapi.exceptions import RequestValidationError
from fastapi.routing import APIRoute
from pydantic import BaseModel, StrictStr, validator, model_validator
from starlette.middleware.cors import CORSMiddleware
from starlette.datastructures import FormData
from starlette.formparsers import FormParser, MultiPartParser
from multipart.multipart import parse_options_header
from uvicorn import Config as UvicornConfig
from uvicorn import Server as UvicornServer

from ariadne.asgi import GraphQL

from vyos.config import Config
from vyos.configtree import ConfigTree
from vyos.configdiff import get_config_diff
from vyos.configsession import ConfigSession
from vyos.configsession import ConfigSessionError
from vyos.defaults import api_config_state

import api.graphql.state

CFG_GROUP = 'vyattacfg'

debug = True

logger = logging.getLogger(__name__)
logs_handler = logging.StreamHandler()
logger.addHandler(logs_handler)

if debug:
    logger.setLevel(logging.DEBUG)
else:
    logger.setLevel(logging.INFO)

# Giant lock!
lock = threading.Lock()

def load_server_config():
    with open(api_config_state) as f:
        config = json.load(f)
    return config

def check_auth(key_list, key):
    key_id = None
    for k in key_list:
        if k['key'] == key:
            key_id = k['id']
    return key_id

def error(code, msg):
    resp = {"success": False, "error": msg, "data": None}
    resp = json.dumps(resp)
    return HTMLResponse(resp, status_code=code)

def success(data):
    resp = {"success": True, "data": data, "error": None}
    resp = json.dumps(resp)
    return HTMLResponse(resp)

# Pydantic models for validation
# Pydantic will cast when possible, so use StrictStr
# validators added as needed for additional constraints
# schema_extra adds anotations to OpenAPI, to add examples

class ApiModel(BaseModel):
    key: StrictStr

class BasePathModel(BaseModel):
    op: StrictStr
    path: List[StrictStr]

    @validator("path")
    def check_non_empty(cls, path):
        if not len(path) > 0:
            raise ValueError('path must be non-empty')
        return path

class BaseConfigureModel(BasePathModel):
    value: StrictStr = None

class ConfigureModel(ApiModel, BaseConfigureModel):
    class Config:
        schema_extra = {
            "example": {
                "key": "id_key",
                "op": "set | delete | comment",
                "path": ['config', 'mode', 'path'],
            }
        }

class ConfigureListModel(ApiModel):
    commands: List[BaseConfigureModel]

    class Config:
        schema_extra = {
            "example": {
                "key": "id_key",
                "commands": "list of commands",
            }
        }

class BaseConfigSectionModel(BasePathModel):
    section: Dict

class ConfigSectionModel(ApiModel, BaseConfigSectionModel):
    pass

class ConfigSectionListModel(ApiModel):
    commands: List[BaseConfigSectionModel]

class BaseConfigSectionTreeModel(BaseModel):
    op: StrictStr
    mask: Dict
    config: Dict

class ConfigSectionTreeModel(ApiModel, BaseConfigSectionTreeModel):
    pass

class RetrieveModel(ApiModel):
    op: StrictStr
    path: List[StrictStr]
    configFormat: StrictStr = None

    class Config:
        schema_extra = {
            "example": {
                "key": "id_key",
                "op": "returnValue | returnValues | exists | showConfig",
                "path": ['config', 'mode', 'path'],
                "configFormat": "json (default) | json_ast | raw",

            }
        }

class ConfigFileModel(ApiModel):
    op: StrictStr
    file: StrictStr = None

    class Config:
        schema_extra = {
            "example": {
                "key": "id_key",
                "op": "save | load",
                "file": "filename",
            }
        }


class ImageOp(str, Enum):
    add = "add"
    delete = "delete"
    show = "show"
    set_default = "set_default"


class ImageModel(ApiModel):
    op: ImageOp
    url: StrictStr = None
    name: StrictStr = None

    @model_validator(mode='after')
    def check_data(self) -> Self:
        if self.op == 'add':
            if not self.url:
                raise ValueError("Missing required field \"url\"")
        elif self.op in ['delete', 'set_default']:
            if not self.name:
                raise ValueError("Missing required field \"name\"")

        return self

    class Config:
        schema_extra = {
            "example": {
                "key": "id_key",
                "op": "add | delete | show | set_default",
                "url": "imagelocation",
                "name": "imagename",
            }
        }

class ImportPkiModel(ApiModel):
    op: StrictStr
    path: List[StrictStr]
    passphrase: StrictStr = None

    class Config:
        schema_extra = {
            "example": {
                "key": "id_key",
                "op": "import_pki",
                "path": ["op", "mode", "path"],
                "passphrase": "passphrase",
            }
        }


class ContainerImageModel(ApiModel):
    op: StrictStr
    name: StrictStr = None

    class Config:
        schema_extra = {
            "example": {
                "key": "id_key",
                "op": "add | delete | show",
                "name": "imagename",
            }
        }

class GenerateModel(ApiModel):
    op: StrictStr
    path: List[StrictStr]

    class Config:
        schema_extra = {
            "example": {
                "key": "id_key",
                "op": "generate",
                "path": ["op", "mode", "path"],
            }
        }

class ShowModel(ApiModel):
    op: StrictStr
    path: List[StrictStr]

    class Config:
        schema_extra = {
            "example": {
                "key": "id_key",
                "op": "show",
                "path": ["op", "mode", "path"],
            }
        }

class RebootModel(ApiModel):
    op: StrictStr
    path: List[StrictStr]

    class Config:
        schema_extra = {
            "example": {
                "key": "id_key",
                "op": "reboot",
                "path": ["op", "mode", "path"],
            }
        }

class ResetModel(ApiModel):
    op: StrictStr
    path: List[StrictStr]

    class Config:
        schema_extra = {
            "example": {
                "key": "id_key",
                "op": "reset",
                "path": ["op", "mode", "path"],
            }
        }

class PoweroffModel(ApiModel):
    op: StrictStr
    path: List[StrictStr]

    class Config:
        schema_extra = {
            "example": {
                "key": "id_key",
                "op": "poweroff",
                "path": ["op", "mode", "path"],
            }
        }


class Success(BaseModel):
    success: bool
    data: Union[str, bool, Dict]
    error: str

class Error(BaseModel):
    success: bool = False
    data: Union[str, bool, Dict]
    error: str

responses = {
    200: {'model': Success},
    400: {'model': Error},
    422: {'model': Error, 'description': 'Validation Error'},
    500: {'model': Error}
}

def auth_required(data: ApiModel):
    key = data.key
    api_keys = app.state.vyos_keys
    key_id = check_auth(api_keys, key)
    if not key_id:
        raise HTTPException(status_code=401, detail="Valid API key is required")
    app.state.vyos_id = key_id

# override Request and APIRoute classes in order to convert form request to json;
# do all explicit validation here, for backwards compatability of error messages;
# the explicit validation may be dropped, if desired, in favor of native
# validation by FastAPI/Pydantic, as is used for application/json requests
class MultipartRequest(Request):
    _form_err = ()
    @property
    def form_err(self):
        return self._form_err

    @form_err.setter
    def form_err(self, val):
        if not self._form_err:
            self._form_err = val

    @property
    def orig_headers(self):
        self._orig_headers = super().headers
        return self._orig_headers

    @property
    def headers(self):
        self._headers = super().headers.mutablecopy()
        self._headers['content-type'] = 'application/json'
        return self._headers

    async def form(self) -> FormData:
        if self._form is None:
            assert (
                parse_options_header is not None
            ), "The `python-multipart` library must be installed to use form parsing."
            content_type_header = self.orig_headers.get("Content-Type")
            content_type, options = parse_options_header(content_type_header)
            if content_type == b"multipart/form-data":
                multipart_parser = MultiPartParser(self.orig_headers, self.stream())
                self._form = await multipart_parser.parse()
            elif content_type == b"application/x-www-form-urlencoded":
                form_parser = FormParser(self.orig_headers, self.stream())
                self._form = await form_parser.parse()
            else:
                self._form = FormData()
        return self._form

    async def body(self) -> bytes:
        if not hasattr(self, "_body"):
            forms = {}
            merge = {}
            body = await super().body()
            self._body = body

            form_data = await self.form()
            if form_data:
                endpoint = self.url.path
                logger.debug("processing form data")
                for k, v in form_data.multi_items():
                    forms[k] = v

                if 'data' not in forms:
                    self.form_err = (422, "Non-empty data field is required")
                    return self._body
                else:
                    try:
                        tmp = json.loads(forms['data'])
                    except json.JSONDecodeError as e:
                        self.form_err = (400, f'Failed to parse JSON: {e}')
                        return self._body
                    if isinstance(tmp, list):
                        merge['commands'] = tmp
                    else:
                        merge = tmp

                if 'commands' in merge:
                    cmds = merge['commands']
                else:
                    cmds = copy.deepcopy(merge)
                    cmds = [cmds]

                for c in cmds:
                    if not isinstance(c, dict):
                        self.form_err = (400,
                        f"Malformed command '{c}': any command must be JSON of dict")
                        return self._body
                    if 'op' not in c:
                        self.form_err = (400,
                        f"Malformed command '{c}': missing 'op' field")
                    if endpoint not in ('/config-file', '/container-image',
                                        '/image', '/configure-section'):
                        if 'path' not in c:
                            self.form_err = (400,
                            f"Malformed command '{c}': missing 'path' field")
                        elif not isinstance(c['path'], list):
                            self.form_err = (400,
                            f"Malformed command '{c}': 'path' field must be a list")
                        elif not all(isinstance(el, str) for el in c['path']):
                            self.form_err = (400,
                            f"Malformed command '{0}': 'path' field must be a list of strings")
                    if endpoint in ('/configure'):
                        if not c['path']:
                            self.form_err = (400,
                            f"Malformed command '{c}': 'path' list must be non-empty")
                        if 'value' in c and not isinstance(c['value'], str):
                            self.form_err = (400,
                            f"Malformed command '{c}': 'value' field must be a string")
                    if endpoint in ('/configure-section'):
                        if 'section' not in c and 'config' not in c:
                            self.form_err = (400,
                            f"Malformed command '{c}': missing 'section' or 'config' field")

                if 'key' not in forms and 'key' not in merge:
                    self.form_err = (401, "Valid API key is required")
                if 'key' in forms and 'key' not in merge:
                    merge['key'] = forms['key']

                new_body = json.dumps(merge)
                new_body = new_body.encode()
                self._body = new_body

        return self._body

class MultipartRoute(APIRoute):
    def get_route_handler(self) -> Callable:
        original_route_handler = super().get_route_handler()

        async def custom_route_handler(request: Request) -> Response:
            request = MultipartRequest(request.scope, request.receive)
            try:
                response: Response = await original_route_handler(request)
            except HTTPException as e:
                return error(e.status_code, e.detail)
            except Exception as e:
                form_err = request.form_err
                if form_err:
                    return error(*form_err)
                raise e

            return response

        return custom_route_handler

app = FastAPI(debug=True,
              title="VyOS API",
              version="0.1.0",
              responses={**responses},
              dependencies=[Depends(auth_required)])

app.router.route_class = MultipartRoute

@app.exception_handler(RequestValidationError)
async def validation_exception_handler(request, exc):
    return error(400, str(exc.errors()[0]))

self_ref_msg = "Requested HTTP API server configuration change; commit will be called in the background"

def call_commit(s: ConfigSession):
    try:
        s.commit()
    except ConfigSessionError as e:
        s.discard()
        if app.state.vyos_debug:
            logger.warning(f"ConfigSessionError:\n {traceback.format_exc()}")
        else:
            logger.warning(f"ConfigSessionError: {e}")

def _configure_op(data: Union[ConfigureModel, ConfigureListModel,
                              ConfigSectionModel, ConfigSectionListModel,
                              ConfigSectionTreeModel],
                  request: Request, background_tasks: BackgroundTasks):
    session = app.state.vyos_session
    env = session.get_session_env()

    endpoint = request.url.path

    # Allow users to pass just one command
    if not isinstance(data, (ConfigureListModel, ConfigSectionListModel)):
        data = [data]
    else:
        data = data.commands

    # We don't want multiple people/apps to be able to commit at once,
    # or modify the shared session while someone else is doing the same,
    # so the lock is really global
    lock.acquire()

    config = Config(session_env=env)

    status = 200
    msg = None
    error_msg = None
    try:
        for c in data:
            op = c.op
            if not isinstance(c, BaseConfigSectionTreeModel):
                path = c.path

            if isinstance(c, BaseConfigureModel):
                if c.value:
                    value = c.value
                else:
                    value = ""
                # For vyos.configsession calls that have no separate value arguments,
                # and for type checking too
                cfg_path = " ".join(path + [value]).strip()

            elif isinstance(c, BaseConfigSectionModel):
                section = c.section

            elif isinstance(c, BaseConfigSectionTreeModel):
                mask = c.mask
                config = c.config

            if isinstance(c, BaseConfigureModel):
                if op == 'set':
                    session.set(path, value=value)
                elif op == 'delete':
                    if app.state.vyos_strict and not config.exists(cfg_path):
                        raise ConfigSessionError(f"Cannot delete [{cfg_path}]: path/value does not exist")
                    session.delete(path, value=value)
                elif op == 'comment':
                    session.comment(path, value=value)
                else:
                    raise ConfigSessionError(f"'{op}' is not a valid operation")

            elif isinstance(c, BaseConfigSectionModel):
                if op == 'set':
                    session.set_section(path, section)
                elif op == 'load':
                    session.load_section(path, section)
                else:
                    raise ConfigSessionError(f"'{op}' is not a valid operation")

            elif isinstance(c, BaseConfigSectionTreeModel):
                if op == 'set':
                    session.set_section_tree(config)
                elif op == 'load':
                    session.load_section_tree(mask, config)
                else:
                    raise ConfigSessionError(f"'{op}' is not a valid operation")
        # end for
        config = Config(session_env=env)
        d = get_config_diff(config)

        if d.is_node_changed(['service', 'https']):
            background_tasks.add_task(call_commit, session)
            msg = self_ref_msg
        else:
            session.commit()

        logger.info(f"Configuration modified via HTTP API using key '{app.state.vyos_id}'")
    except ConfigSessionError as e:
        session.discard()
        status = 400
        if app.state.vyos_debug:
            logger.critical(f"ConfigSessionError:\n {traceback.format_exc()}")
        error_msg = str(e)
    except Exception as e:
        session.discard()
        logger.critical(traceback.format_exc())
        status = 500

        # Don't give the details away to the outer world
        error_msg = "An internal error occured. Check the logs for details."
    finally:
        lock.release()

    if status != 200:
        return error(status, error_msg)

    return success(msg)

def create_path_import_pki_no_prompt(path):
    correct_paths = ['ca', 'certificate', 'key-pair']
    if path[1] not in correct_paths:
        return False
    path[1] = '--' + path[1].replace('-', '')
    path[3] = '--key-filename'
    return path[1:]

@app.post('/configure')
def configure_op(data: Union[ConfigureModel,
                             ConfigureListModel],
                       request: Request, background_tasks: BackgroundTasks):
    return _configure_op(data, request, background_tasks)

@app.post('/configure-section')
def configure_section_op(data: Union[ConfigSectionModel,
                                     ConfigSectionListModel,
                                     ConfigSectionTreeModel],
                               request: Request, background_tasks: BackgroundTasks):
    return _configure_op(data, request, background_tasks)

@app.post("/retrieve")
async def retrieve_op(data: RetrieveModel):
    session = app.state.vyos_session
    env = session.get_session_env()
    config = Config(session_env=env)

    op = data.op
    path = " ".join(data.path)

    try:
        if op == 'returnValue':
            res = config.return_value(path)
        elif op == 'returnValues':
            res = config.return_values(path)
        elif op == 'exists':
            res = config.exists(path)
        elif op == 'showConfig':
            config_format = 'json'
            if data.configFormat:
                config_format = data.configFormat

            res = session.show_config(path=data.path)
            if config_format == 'json':
                config_tree = ConfigTree(res)
                res = json.loads(config_tree.to_json())
            elif config_format == 'json_ast':
                config_tree = ConfigTree(res)
                res = json.loads(config_tree.to_json_ast())
            elif config_format == 'raw':
                pass
            else:
                return error(400, f"'{config_format}' is not a valid config format")
        else:
            return error(400, f"'{op}' is not a valid operation")
    except ConfigSessionError as e:
        return error(400, str(e))
    except Exception as e:
        logger.critical(traceback.format_exc())
        return error(500, "An internal error occured. Check the logs for details.")

    return success(res)

@app.post('/config-file')
def config_file_op(data: ConfigFileModel, background_tasks: BackgroundTasks):
    session = app.state.vyos_session
    env = session.get_session_env()
    op = data.op
    msg = None

    try:
        if op == 'save':
            if data.file:
                path = data.file
            else:
                path = '/config/config.boot'
            msg = session.save_config(path)
        elif op == 'load':
            if data.file:
                path = data.file
            else:
                return error(400, "Missing required field \"file\"")

            session.migrate_and_load_config(path)

            config = Config(session_env=env)
            d = get_config_diff(config)

            if d.is_node_changed(['service', 'https']):
                background_tasks.add_task(call_commit, session)
                msg = self_ref_msg
            else:
                session.commit()
        else:
            return error(400, f"'{op}' is not a valid operation")
    except ConfigSessionError as e:
        return error(400, str(e))
    except Exception as e:
        logger.critical(traceback.format_exc())
        return error(500, "An internal error occured. Check the logs for details.")

    return success(msg)

@app.post('/image')
def image_op(data: ImageModel):
    session = app.state.vyos_session

    op = data.op

    try:
        if op == 'add':
            res = session.install_image(data.url)
        elif op == 'delete':
            res = session.remove_image(data.name)
        elif op == 'show':
            res = session.show(["system", "image"])
        elif op == 'set_default':
            res = session.set_default_image(data.name)
    except ConfigSessionError as e:
        return error(400, str(e))
    except Exception as e:
        logger.critical(traceback.format_exc())
        return error(500, "An internal error occured. Check the logs for details.")

    return success(res)

@app.post('/container-image')
def container_image_op(data: ContainerImageModel):
    session = app.state.vyos_session

    op = data.op

    try:
        if op == 'add':
            if data.name:
                name = data.name
            else:
                return error(400, "Missing required field \"name\"")
            res = session.add_container_image(name)
        elif op == 'delete':
            if data.name:
                name = data.name
            else:
                return error(400, "Missing required field \"name\"")
            res = session.delete_container_image(name)
        elif op == 'show':
            res = session.show_container_image()
        else:
            return error(400, f"'{op}' is not a valid operation")
    except ConfigSessionError as e:
        return error(400, str(e))
    except Exception as e:
        logger.critical(traceback.format_exc())
        return error(500, "An internal error occured. Check the logs for details.")

    return success(res)

@app.post('/generate')
def generate_op(data: GenerateModel):
    session = app.state.vyos_session

    op = data.op
    path = data.path

    try:
        if op == 'generate':
            res = session.generate(path)
        else:
            return error(400, f"'{op}' is not a valid operation")
    except ConfigSessionError as e:
        return error(400, str(e))
    except Exception as e:
        logger.critical(traceback.format_exc())
        return error(500, "An internal error occured. Check the logs for details.")

    return success(res)

@app.post('/show')
def show_op(data: ShowModel):
    session = app.state.vyos_session

    op = data.op
    path = data.path

    try:
        if op == 'show':
            res = session.show(path)
        else:
            return error(400, f"'{op}' is not a valid operation")
    except ConfigSessionError as e:
        return error(400, str(e))
    except Exception as e:
        logger.critical(traceback.format_exc())
        return error(500, "An internal error occured. Check the logs for details.")

    return success(res)

@app.post('/reboot')
def reboot_op(data: RebootModel):
    session = app.state.vyos_session

    op = data.op
    path = data.path

    try:
        if op == 'reboot':
            res = session.reboot(path)
        else:
            return error(400, f"'{op}' is not a valid operation")
    except ConfigSessionError as e:
        return error(400, str(e))
    except Exception as e:
        logger.critical(traceback.format_exc())
        return error(500, "An internal error occured. Check the logs for details.")

    return success(res)

@app.post('/reset')
def reset_op(data: ResetModel):
    session = app.state.vyos_session

    op = data.op
    path = data.path

    try:
        if op == 'reset':
            res = session.reset(path)
        else:
            return error(400, f"'{op}' is not a valid operation")
    except ConfigSessionError as e:
        return error(400, str(e))
    except Exception as e:
        logger.critical(traceback.format_exc())
        return error(500, "An internal error occured. Check the logs for details.")

    return success(res)

@app.post('/import-pki')
def import_pki(data: ImportPkiModel):
    session = app.state.vyos_session

    op = data.op
    path = data.path

    lock.acquire()

    try:
        if op == 'import-pki':
            # need to get rid or interactive mode for private key
            if len(path) == 5 and path[3] in ['key-file', 'private-key']:
                path_no_prompt = create_path_import_pki_no_prompt(path)
                if not path_no_prompt:
                    return error(400, f"Invalid command: {' '.join(path)}")
                if data.passphrase:
                    path_no_prompt += ['--passphrase', data.passphrase]
                res = session.import_pki_no_prompt(path_no_prompt)
            else:
                res = session.import_pki(path)
            if not res[0].isdigit():
                return error(400, res)
            # commit changes
            session.commit()
            res = res.split('. ')[0]
        else:
            return error(400, f"'{op}' is not a valid operation")
    except ConfigSessionError as e:
        return error(400, str(e))
    except Exception as e:
        logger.critical(traceback.format_exc())
        return error(500, "An internal error occured. Check the logs for details.")
    finally:
        lock.release()

    return success(res)

@app.post('/poweroff')
def poweroff_op(data: PoweroffModel):
    session = app.state.vyos_session

    op = data.op
    path = data.path

    try:
        if op == 'poweroff':
            res = session.poweroff(path)
        else:
            return error(400, f"'{op}' is not a valid operation")
    except ConfigSessionError as e:
        return error(400, str(e))
    except Exception as e:
        logger.critical(traceback.format_exc())
        return error(500, "An internal error occured. Check the logs for details.")

    return success(res)


###
# GraphQL integration
###

def graphql_init(app: FastAPI = app):
    from api.graphql.libs.token_auth import get_user_context
    api.graphql.state.init()
    api.graphql.state.settings['app'] = app

    # import after initializaion of state
    from api.graphql.bindings import generate_schema
    schema = generate_schema()

    in_spec = app.state.vyos_introspection

    if app.state.vyos_origins:
        origins = app.state.vyos_origins
        app.add_route('/graphql', CORSMiddleware(GraphQL(schema,
                                                         context_value=get_user_context,
                                                         debug=True,
                                                         introspection=in_spec),
                                                 allow_origins=origins,
                                                 allow_methods=("GET", "POST", "OPTIONS"),
                                                 allow_headers=("Authorization",)))
    else:
        app.add_route('/graphql', GraphQL(schema,
                                          context_value=get_user_context,
                                          debug=True,
                                          introspection=in_spec))
###
# Modify uvicorn to allow reloading server within the configsession
###

server = None
shutdown = False

class ApiServerConfig(UvicornConfig):
    pass

class ApiServer(UvicornServer):
    def install_signal_handlers(self):
        pass

def reload_handler(signum, frame):
    global server
    logger.debug('Reload signal received...')
    if server is not None:
        server.handle_exit(signum, frame)
        server = None
        logger.info('Server stopping for reload...')
    else:
        logger.warning('Reload called for non-running server...')

def shutdown_handler(signum, frame):
    global shutdown
    logger.debug('Shutdown signal received...')
    server.handle_exit(signum, frame)
    logger.info('Server shutdown...')
    shutdown = True

def flatten_keys(d: dict) -> list[dict]:
    keys_list = []
    for el in list(d['keys'].get('id', {})):
        key = d['keys']['id'][el].get('key', '')
        if key:
            keys_list.append({'id': el, 'key': key})
    return keys_list

def initialization(session: ConfigSession, app: FastAPI = app):
    global server
    try:
        server_config = load_server_config()
    except Exception as e:
        logger.critical(f'Failed to load the HTTP API server config: {e}')
        sys.exit(1)

    app.state.vyos_session = session
    app.state.vyos_keys = []

    if 'keys' in server_config:
        app.state.vyos_keys = flatten_keys(server_config)

    app.state.vyos_debug = bool('debug' in server_config)
    app.state.vyos_strict = bool('strict' in server_config)
    app.state.vyos_origins = server_config.get('cors', {}).get('allow_origin', [])
    if 'graphql' in server_config:
        app.state.vyos_graphql = True
        if isinstance(server_config['graphql'], dict):
            if 'introspection' in server_config['graphql']:
                app.state.vyos_introspection = True
            else:
                app.state.vyos_introspection = False
            # default values if not set explicitly
            app.state.vyos_auth_type = server_config['graphql']['authentication']['type']
            app.state.vyos_token_exp = server_config['graphql']['authentication']['expiration']
            app.state.vyos_secret_len = server_config['graphql']['authentication']['secret_length']
    else:
        app.state.vyos_graphql = False

    if app.state.vyos_graphql:
        graphql_init(app)

    config = ApiServerConfig(app, uds="/run/api.sock", proxy_headers=True)
    server = ApiServer(config)

def run_server():
    try:
        server.run()
    except OSError as e:
        logger.critical(e)
        sys.exit(1)

if __name__ == '__main__':
    # systemd's user and group options don't work, do it by hand here,
    # else no one else will be able to commit
    cfg_group = grp.getgrnam(CFG_GROUP)
    os.setgid(cfg_group.gr_gid)

    # Need to set file permissions to 775 too so that every vyattacfg group member
    # has write access to the running config
    os.umask(0o002)

    signal.signal(signal.SIGHUP, reload_handler)
    signal.signal(signal.SIGTERM, shutdown_handler)

    config_session = ConfigSession(os.getpid())

    while True:
        logger.debug('Enter main loop...')
        if shutdown:
            break
        if server is None:
            initialization(config_session)
            server.run()
        sleep(1)