aboutsummaryrefslogtreecommitdiffhomepage
path: root/server/middlewares/validators/follows.ts
blob: a590aca99f525e14c00ded446122b38ad7e74c01 (plain) (blame)
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
import * as express from 'express'
import { body, param, query } from 'express-validator'
import { isTestInstance } from '../../helpers/core-utils'
import { isEachUniqueHostValid, isHostValid } from '../../helpers/custom-validators/servers'
import { logger } from '../../helpers/logger'
import { SERVER_ACTOR_NAME, WEBSERVER } from '../../initializers/constants'
import { ActorFollowModel } from '../../models/activitypub/actor-follow'
import { areValidationErrors } from './utils'
import { ActorModel } from '../../models/activitypub/actor'
import { loadActorUrlOrGetFromWebfinger } from '../../helpers/webfinger'
import { isActorTypeValid, isValidActorHandle } from '../../helpers/custom-validators/activitypub/actor'
import { MActorFollowActorsDefault } from '@server/types/models'
import { isFollowStateValid } from '@server/helpers/custom-validators/follows'
import { getServerActor } from '@server/models/application/application'
import { HttpStatusCode } from '../../../shared/core-utils/miscs/http-error-codes'

const listFollowsValidator = [
  query('state')
    .optional()
    .custom(isFollowStateValid).withMessage('Should have a valid follow state'),
  query('actorType')
    .optional()
    .custom(isActorTypeValid).withMessage('Should have a valid actor type'),

  (req: express.Request, res: express.Response, next: express.NextFunction) => {
    if (areValidationErrors(req, res)) return

    return next()
  }
]

const followValidator = [
  body('hosts').custom(isEachUniqueHostValid).withMessage('Should have an array of unique hosts'),

  (req: express.Request, res: express.Response, next: express.NextFunction) => {
    // Force https if the administrator wants to make friends
    if (isTestInstance() === false && WEBSERVER.SCHEME === 'http') {
      return res
        .status(HttpStatusCode.INTERNAL_SERVER_ERROR_500)
        .json({
          error: 'Cannot follow on a non HTTPS web server.'
        })
        .end()
    }

    logger.debug('Checking follow parameters', { parameters: req.body })

    if (areValidationErrors(req, res)) return

    return next()
  }
]

const removeFollowingValidator = [
  param('host').custom(isHostValid).withMessage('Should have a valid host'),

  async (req: express.Request, res: express.Response, next: express.NextFunction) => {
    logger.debug('Checking unfollowing parameters', { parameters: req.params })

    if (areValidationErrors(req, res)) return

    const serverActor = await getServerActor()
    const follow = await ActorFollowModel.loadByActorAndTargetNameAndHostForAPI(serverActor.id, SERVER_ACTOR_NAME, req.params.host)

    if (!follow) {
      return res
        .status(HttpStatusCode.NOT_FOUND_404)
        .json({
          error: `Following ${req.params.host} not found.`
        })
        .end()
    }

    res.locals.follow = follow
    return next()
  }
]

const getFollowerValidator = [
  param('nameWithHost').custom(isValidActorHandle).withMessage('Should have a valid nameWithHost'),

  async (req: express.Request, res: express.Response, next: express.NextFunction) => {
    logger.debug('Checking get follower parameters', { parameters: req.params })

    if (areValidationErrors(req, res)) return

    let follow: MActorFollowActorsDefault
    try {
      const actorUrl = await loadActorUrlOrGetFromWebfinger(req.params.nameWithHost)
      const actor = await ActorModel.loadByUrl(actorUrl)

      const serverActor = await getServerActor()
      follow = await ActorFollowModel.loadByActorAndTarget(actor.id, serverActor.id)
    } catch (err) {
      logger.warn('Cannot get actor from handle.', { handle: req.params.nameWithHost, err })
    }

    if (!follow) {
      return res
        .status(HttpStatusCode.NOT_FOUND_404)
        .json({
          error: `Follower ${req.params.nameWithHost} not found.`
        })
        .end()
    }

    res.locals.follow = follow
    return next()
  }
]

const acceptOrRejectFollowerValidator = [
  (req: express.Request, res: express.Response, next: express.NextFunction) => {
    logger.debug('Checking accept/reject follower parameters', { parameters: req.params })

    const follow = res.locals.follow
    if (follow.state !== 'pending') {
      return res
        .status(HttpStatusCode.BAD_REQUEST_400)
        .json({
          error: 'Follow is not in pending state.'
        })
        .end()
    }

    return next()
  }
]

// ---------------------------------------------------------------------------

export {
  followValidator,
  removeFollowingValidator,
  getFollowerValidator,
  acceptOrRejectFollowerValidator,
  listFollowsValidator
}