Fix #54 - Fetch remote accounts by URL from mentions

Fetching atom extracted from FetchRemoteAccountService and FetchRemoteStatusService
into FetchAtomService. Mentions of the constant "http://activityschema.org/collection/public"
skipped as it's not a real URL/user.
This commit is contained in:
Eugen Rochko 2016-09-26 16:42:38 +02:00
parent 0bd4608ad1
commit c6b0311b86
11 changed files with 99 additions and 67 deletions

View File

@ -23,7 +23,7 @@ class FanOutOnWriteService < BaseService
def deliver_to_mentioned(status)
status.mentions.each do |mention|
mentioned_account = mention.account
next unless mentioned_account.local?
next if !mentioned_account.local? || mentioned_account.id == status.account_id
FeedManager.instance.push(:mentions, mentioned_account, status)
end
end

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@ -0,0 +1,46 @@
class FetchAtomService < BaseService
def call(url)
response = http_client.head(url)
Rails.logger.debug "Remote status HEAD request returned code #{response.code}"
return nil if response.code != 200
if response.mime_type == 'application/atom+xml'
return [url, fetch(url)]
elsif !response['Link'].blank?
return process_headers(response)
else
return process_html(fetch(url))
end
end
private
def process_html(body)
Rails.logger.debug "Processing HTML"
page = Nokogiri::HTML(body)
alternate_link = page.xpath('//link[@rel="alternate"]').find { |link| link['type'] == 'application/atom+xml' }
return nil if alternate_link.nil?
return [alternate_link['href'], fetch(alternate_link['href'])]
end
def process_headers(response)
Rails.logger.debug "Processing link header"
link_header = LinkHeader.parse(response['Link'])
alternate_link = link_header.find_link(['rel', 'alternate'], ['type', 'application/atom+xml'])
return nil if alternate_link.nil?
return [alternate_link.href, fetch(alternate_link.href)]
end
def fetch(url)
http_client.get(url).to_s
end
def http_client
HTTP.timeout(:per_operation, write: 20, connect: 20, read: 50)
end
end

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@ -1,17 +0,0 @@
class FetchFeedService < BaseService
# Fetch an account's feed and process it
# @param [Account] account
def call(account)
process_service.(http_client.get(account.remote_url), account)
end
private
def process_service
@process_service ||= ProcessFeedService.new
end
def http_client
HTTP
end
end

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@ -0,0 +1,22 @@
class FetchRemoteAccountService < BaseService
def call(url)
atom_url, body = FetchAtomService.new.(url)
return nil if atom_url.nil?
return process_atom(atom_url, body)
end
private
def process_atom(url, body)
url_parts = Addressable::URI.parse(url)
username = xml.at_xpath('//xmlns:author/xmlns:name').try(:content)
domain = url_parts.host
return nil if username.nil?
Rails.logger.debug "Going to webfinger #{username}@#{domain}"
return FollowRemoteAccountService.new.("#{username}@#{domain}")
end
end

View File

@ -1,17 +1,9 @@
class FetchRemoteStatusService < BaseService
def call(url)
response = http_client.head(url)
atom_url, body = FetchAtomService.new.(url)
Rails.logger.debug "Remote status HEAD request returned code #{response.code}"
return nil if response.code != 200
if response.mime_type == 'application/atom+xml'
return process_atom(url, fetch(url))
elsif !response['Link'].blank?
return process_headers(response)
else
return process_html(fetch(url))
end
return nil if atom_url.nil?
return process_atom(atom_url, body)
end
private
@ -29,26 +21,6 @@ class FetchRemoteStatusService < BaseService
return statuses.first
end
def process_html(body)
Rails.logger.debug "Processing HTML for remote status"
page = Nokogiri::HTML(body)
alternate_link = page.xpath('//link[@rel="alternate"]').find { |link| link['type'] == 'application/atom+xml' }
return nil if alternate_link.nil?
return process_atom(alternate_link['href'], fetch(alternate_link['href']))
end
def process_headers(response)
Rails.logger.debug "Processing link header for remote status"
link_header = LinkHeader.parse(response['Link'])
alternate_link = link_header.find_link(['rel', 'alternate'], ['type', 'application/atom+xml'])
return nil if alternate_link.nil?
return process_atom(alternate_link.href, fetch(alternate_link.href))
end
def extract_author(url, xml)
url_parts = Addressable::URI.parse(url)
username = xml.at_xpath('//xmlns:author/xmlns:name').try(:content)
@ -60,12 +32,4 @@ class FetchRemoteStatusService < BaseService
return FollowRemoteAccountService.new.("#{username}@#{domain}")
end
def fetch(url)
http_client.get(url).to_s
end
def http_client
HTTP.timeout(:per_operation, write: 20, connect: 20, read: 50)
end
end

View File

@ -57,7 +57,11 @@ class ProcessFeedService < BaseService
# and tidier
links.each do |mention_link|
href = Addressable::URI.parse(mention_link.attribute('href').value)
href_val = mention_link.attribute('href').value
next if href_val == 'http://activityschema.org/collection/public'
href = Addressable::URI.parse(href_val)
if href.host == Rails.configuration.x.local_domain
# A local user is mentioned
@ -72,6 +76,10 @@ class ProcessFeedService < BaseService
# This is kinda dodgy because URLs could change, we don't index them
mentioned_account = Account.find_by(url: href.to_s)
if mentioned_account.nil?
mentioned_account = FetchRemoteAccountService.new.(href)
end
unless mentioned_account.nil?
mentioned_account.mentions.where(status: status).first_or_create(status: status)
end

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@ -32,6 +32,11 @@ RSpec.describe Api::SubscriptionsController, type: :controller do
stub_request(:head, "https://social.umeahackerspace.se/notice/424348").to_return(status: 404)
stub_request(:head, "https://community.highlandarrow.com/notice/50467").to_return(status: 404)
stub_request(:head, "https://quitter.no/notice/1243309").to_return(status: 404)
stub_request(:head, "https://quitter.no/user/7477").to_return(status: 404)
stub_request(:head, "https://community.highlandarrow.com/user/1").to_return(status: 404)
stub_request(:head, "https://social.umeahackerspace.se/user/2").to_return(status: 404)
stub_request(:head, "https://gs.kawa-kun.com/user/2").to_return(status: 404)
stub_request(:head, "https://mastodon.social/users/Gargron").to_return(status: 404)
request.env['HTTP_X_HUB_SIGNATURE'] = "sha1=#{OpenSSL::HMAC.hexdigest('sha1', 'abc', feed)}"
request.env['RAW_POST_DATA'] = feed

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@ -0,0 +1,4 @@
require 'rails_helper'
RSpec.describe FetchAtomService do
end

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@ -1,8 +0,0 @@
require 'rails_helper'
RSpec.describe FetchFeedService do
subject { FetchFeedService.new }
it 'fetches remote user\'s feed'
it 'processes the feed'
end

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@ -0,0 +1,4 @@
require 'rails_helper'
RSpec.describe FetchRemoteAccountService do
end

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@ -0,0 +1,4 @@
require 'rails_helper'
RSpec.describe FetchRemoteStatusService do
end