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
|
const ObservableStore = require('obs-store')
/**
* A controller that services user-approved requests for a full Ethereum provider API
*/
class ProviderApprovalController {
/**
* Determines if caching is enabled
*/
caching = true
/**
* Creates a ProviderApprovalController
*
* @param {Object} [config] - Options to configure controller
*/
constructor ({ closePopup, keyringController, openPopup, platform, preferencesController, publicConfigStore } = {}) {
this.approvedOrigins = {}
this.closePopup = closePopup
this.keyringController = keyringController
this.openPopup = openPopup
this.platform = platform
this.preferencesController = preferencesController
this.publicConfigStore = publicConfigStore
this.store = new ObservableStore()
if (platform && platform.addMessageListener) {
platform.addMessageListener(({ action = '', force, origin, siteTitle, siteImage }) => {
switch (action) {
case 'init-provider-request':
this._handleProviderRequest(origin, siteTitle, siteImage, force)
break
case 'init-is-approved':
this._handleIsApproved(origin)
break
case 'init-is-unlocked':
this._handleIsUnlocked()
break
case 'init-privacy-request':
this._handlePrivacyRequest()
break
}
})
}
}
/**
* Called when a tab requests access to a full Ethereum provider API
*
* @param {string} origin - Origin of the window requesting full provider access
* @param {string} siteTitle - The title of the document requesting full provider access
* @param {string} siteImage - The icon of the window requesting full provider access
*/
_handleProviderRequest (origin, siteTitle, siteImage, force) {
this.store.updateState({ providerRequests: [{ origin, siteTitle, siteImage }] })
const isUnlocked = this.keyringController.memStore.getState().isUnlocked
if (!force && this.approvedOrigins[origin] && this.caching && isUnlocked) {
this.approveProviderRequest(origin)
return
}
this.openPopup && this.openPopup()
}
/**
* Called by a tab to determine if an origin has been approved in the past
*
* @param {string} origin - Origin of the window
*/
_handleIsApproved (origin) {
this.platform && this.platform.sendMessage({
action: 'answer-is-approved',
isApproved: this.approvedOrigins[origin] && this.caching,
caching: this.caching,
}, { active: true })
}
/**
* Called by a tab to determine if MetaMask is currently locked or unlocked
*/
_handleIsUnlocked () {
const isUnlocked = this.keyringController.memStore.getState().isUnlocked
this.platform && this.platform.sendMessage({ action: 'answer-is-unlocked', isUnlocked }, { active: true })
}
/**
* Called to check privacy mode; if privacy mode is off, this will automatically enable the provider (legacy behavior)
*/
_handlePrivacyRequest () {
const privacyMode = this.preferencesController.getFeatureFlags().privacyMode
if (!privacyMode) {
this.platform && this.platform.sendMessage({ action: 'approve-provider-request' }, { active: true })
this.publicConfigStore.emit('update', this.publicConfigStore.getState())
}
}
/**
* Called when a user approves access to a full Ethereum provider API
*
* @param {string} origin - Origin of the target window to approve provider access
*/
approveProviderRequest (origin) {
this.closePopup && this.closePopup()
const requests = this.store.getState().providerRequests || []
this.platform && this.platform.sendMessage({ action: 'approve-provider-request' }, { active: true })
this.publicConfigStore.emit('update', this.publicConfigStore.getState())
const providerRequests = requests.filter(request => request.origin !== origin)
this.store.updateState({ providerRequests })
this.approvedOrigins[origin] = true
}
/**
* Called when a tab rejects access to a full Ethereum provider API
*
* @param {string} origin - Origin of the target window to reject provider access
*/
rejectProviderRequest (origin) {
this.closePopup && this.closePopup()
const requests = this.store.getState().providerRequests || []
this.platform && this.platform.sendMessage({ action: 'reject-provider-request' }, { active: true })
const providerRequests = requests.filter(request => request.origin !== origin)
this.store.updateState({ providerRequests })
delete this.approvedOrigins[origin]
}
/**
* Clears any cached approvals for user-approved origins
*/
clearApprovedOrigins () {
this.approvedOrigins = {}
}
/**
* Determines if a given origin should have accounts exposed
*
* @param {string} origin - Domain origin to check for approval status
* @returns {boolean} - True if the origin has been approved
*/
shouldExposeAccounts (origin) {
const privacyMode = this.preferencesController.getFeatureFlags().privacyMode
return !privacyMode || this.approvedOrigins[origin]
}
/**
* Tells all tabs that MetaMask is now locked. This is primarily used to set
* internal flags in the contentscript and inpage script.
*/
setLocked () {
this.platform.sendMessage({ action: 'metamask-set-locked' })
}
}
module.exports = ProviderApprovalController
|
