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
|
# frozen_string_literal: true
class ProcessInteractionService < BaseService
# Record locally the remote interaction with our user
# @param [String] envelope Salmon envelope
# @param [Account] target_account Account the Salmon was addressed to
def call(envelope, target_account)
body = salmon.unpack(envelope)
xml = Nokogiri::XML(body)
xml.encoding = 'utf-8'
return unless contains_author?(xml)
username = xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:name', xmlns: TagManager::XMLNS).content
url = xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:uri', xmlns: TagManager::XMLNS).content
domain = Addressable::URI.parse(url).host
account = Account.find_by(username: username, domain: domain)
if account.nil?
account = follow_remote_account_service.call("#{username}@#{domain}")
end
return if account.suspended?
if salmon.verify(envelope, account.keypair)
update_remote_profile_service.call(xml.at_xpath('/xmlns:entry', xmlns: TagManager::XMLNS), account, true)
case verb(xml)
when :follow
follow!(account, target_account) unless target_account.locked? || target_account.blocking?(account)
when :request_friend
follow_request!(account, target_account) unless !target_account.locked? || target_account.blocking?(account)
when :authorize
authorize_follow_request!(account, target_account)
when :unfollow
unfollow!(account, target_account)
when :favorite
favourite!(xml, account)
when :post
add_post!(body, account) if mentions_account?(xml, target_account)
when :share
add_post!(body, account) unless status(xml).nil?
when :delete
delete_post!(xml, account)
when :block
reflect_block!(account, target_account)
when :unblock
reflect_unblock!(account, target_account)
end
end
rescue Goldfinger::Error, HTTP::Error, OStatus2::BadSalmonError
nil
end
private
def contains_author?(xml)
!(xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:name', xmlns: TagManager::XMLNS).nil? || xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:uri', xmlns: TagManager::XMLNS).nil?)
end
def mentions_account?(xml, account)
xml.xpath('/xmlns:entry/xmlns:link[@rel="mentioned"]', xmlns: TagManager::XMLNS).each { |mention_link| return true if mention_link.attribute('href').value == TagManager.instance.url_for(account) }
false
end
def verb(xml)
raw = xml.at_xpath('//activity:verb', activity: TagManager::AS_XMLNS).content
TagManager::VERBS.key(raw)
rescue
:post
end
def follow!(account, target_account)
follow = account.follow!(target_account)
NotifyService.new.call(target_account, follow)
end
def follow_request(account, target_account)
follow_request = FollowRequest.create!(account: account, target_account: target_account)
NotifyService.new.call(target_account, follow_request)
end
def authorize_target_account!(account, target_account)
follow_request = FollowRequest.find_by(account: target_account, target_account: account)
follow_request&.authorize!
end
def unfollow!(account, target_account)
account.unfollow!(target_account)
end
def reflect_block!(account, target_account)
UnfollowService.new.call(target_account, account) if target_account.following?(account)
account.block!(target_account)
end
def reflect_unblock!(account, target_account)
UnblockService.new.call(account, target_account)
end
def delete_post!(xml, account)
status = Status.find(xml.at_xpath('//xmlns:id', xmlns: TagManager::XMLNS).content)
return if status.nil?
remove_status_service.call(status) if account.id == status.account_id
end
def favourite!(xml, from_account)
current_status = status(xml)
favourite = current_status.favourites.where(account: from_account).first_or_create!(account: from_account)
NotifyService.new.call(current_status.account, favourite)
end
def add_post!(body, account)
process_feed_service.call(body, account)
end
def status(xml)
Status.find(TagManager.instance.unique_tag_to_local_id(activity_id(xml), 'Status'))
end
def activity_id(xml)
xml.at_xpath('//activity:object', activity: TagManager::AS_XMLNS).at_xpath('./xmlns:id', xmlns: TagManager::XMLNS).content
end
def salmon
@salmon ||= OStatus2::Salmon.new
end
def follow_remote_account_service
@follow_remote_account_service ||= FollowRemoteAccountService.new
end
def process_feed_service
@process_feed_service ||= ProcessFeedService.new
end
def update_remote_profile_service
@update_remote_profile_service ||= UpdateRemoteProfileService.new
end
def remove_status_service
@remove_status_service ||= RemoveStatusService.new
end
end
|
