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307 lines
8.0 KiB
Ruby
307 lines
8.0 KiB
Ruby
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# Zendesk importer
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#
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# This one uses their API.
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require 'reverse_markdown'
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require_relative 'base'
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require_relative 'base/generic_database'
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# Call it like this:
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# RAILS_ENV=production bundle exec ruby script/import_scripts/zendesk_api.rb SOURCE_URL DIRNAME AUTH_EMAIL AUTH_TOKEN
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class ImportScripts::Zendesk < ImportScripts::Base
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BATCH_SIZE = 1000
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def initialize(source_url, path, auth_email, auth_token)
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super()
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@source_url = source_url
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@path = path
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@auth_email = auth_email
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@auth_token = auth_token
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@db = ImportScripts::GenericDatabase.new(@path, batch_size: BATCH_SIZE, recreate: true)
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end
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def execute
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fetch_from_api
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import_categories
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import_users
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import_topics
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import_posts
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end
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def fetch_from_api
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puts '', 'fetching categories...'
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get_from_api('/api/v2/community/topics.json', 'topics') do |row|
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@db.insert_category(
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id: row['id'],
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name: row['name'],
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description: row['description'],
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position: row['position'],
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url: row['html_url']
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)
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end
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puts '', 'fetching topics...'
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get_from_api('/api/v2/community/posts.json', 'posts') do |row|
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@db.insert_topic(
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id: row['id'],
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title: row['title'],
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raw: row['details'],
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category_id: row['topic_id'],
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closed: row['closed'],
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user_id: row['author_id'],
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created_at: row['created_at'],
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url: row['html_url']
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)
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end
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puts '', 'fetching posts...'
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total_count = @db.count_topics
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start_time = Time.now
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last_id = ''
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batches do |offset|
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rows, last_id = @db.fetch_topics(last_id)
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break if rows.empty?
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print_status(offset, total_count, start_time)
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rows.each do |topic_row|
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get_from_api("/api/v2/community/posts/#{topic_row['id']}/comments.json", 'comments', show_status: false) do |row|
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@db.insert_post(
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id: row['id'],
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raw: row['body'],
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topic_id: topic_row['id'],
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user_id: row['author_id'],
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created_at: row['created_at'],
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url: row['html_url']
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)
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end
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end
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end
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puts '', 'fetching users...'
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results = @db.execute_sql("SELECT user_id FROM topic")
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user_ids = results.map { |h| h['user_id']&.to_i }
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results = @db.execute_sql("SELECT user_id FROM post")
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user_ids += results.map { |h| h['user_id']&.to_i }
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user_ids.uniq!
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user_ids.sort!
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total_users = user_ids.size
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start_time = Time.now
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while !user_ids.empty?
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print_status(total_users - user_ids.size, total_users, start_time)
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get_from_api("/api/v2/users/show_many.json?ids=#{user_ids.shift(50).join(',')}", 'users', show_status: false) do |row|
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@db.insert_user(
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id: row['id'],
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email: row['email'],
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name: row['name'],
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created_at: row['created_at'],
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last_seen_at: row['last_login_at'],
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active: row['active']
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)
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end
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end
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@db.sort_posts_by_created_at
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end
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def import_categories
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puts "", "creating categories"
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rows = @db.fetch_categories
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create_categories(rows) do |row|
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{
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id: row['id'],
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name: row['name'],
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description: row['description'],
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position: row['position'],
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post_create_action: proc do |category|
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url = remove_domain(row['url'])
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Permalink.create(url: url, category_id: category.id) unless permalink_exists?(url)
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end
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}
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end
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end
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def import_users
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puts "", "creating users"
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total_count = @db.count_users
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last_id = ''
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batches do |offset|
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rows, last_id = @db.fetch_users(last_id)
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break if rows.empty?
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next if all_records_exist?(:users, rows.map { |row| row['id'] })
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create_users(rows, total: total_count, offset: offset) do |row|
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{
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id: row['id'],
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email: row['email'],
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name: row['name'],
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created_at: row['created_at'],
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last_seen_at: row['last_seen_at'],
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active: row['active'] == 1
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}
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end
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end
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end
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def import_topics
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puts "", "creating topics"
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total_count = @db.count_topics
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last_id = ''
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batches do |offset|
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rows, last_id = @db.fetch_topics(last_id)
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break if rows.empty?
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next if all_records_exist?(:posts, rows.map { |row| import_topic_id(row['id']) })
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create_posts(rows, total: total_count, offset: offset) do |row|
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{
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id: import_topic_id(row['id']),
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title: row['title'].present? ? row['title'].strip[0...255] : "Topic title missing",
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raw: normalize_raw(row['raw']),
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category: category_id_from_imported_category_id(row['category_id']),
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user_id: user_id_from_imported_user_id(row['user_id']) || Discourse.system_user.id,
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created_at: row['created_at'],
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closed: row['closed'] == 1,
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post_create_action: proc do |post|
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url = remove_domain(row['url'])
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Permalink.create(url: url, topic_id: post.topic.id) unless permalink_exists?(url)
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end
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}
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end
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end
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end
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def import_topic_id(topic_id)
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"T#{topic_id}"
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end
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def import_posts
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puts "", "creating posts"
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total_count = @db.count_posts
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last_row_id = 0
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batches do |offset|
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rows, last_row_id = @db.fetch_posts(last_row_id)
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break if rows.empty?
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create_posts(rows, total: total_count, offset: offset) do |row|
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topic = topic_lookup_from_imported_post_id(import_topic_id(row['topic_id']))
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if topic.nil?
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p "MISSING TOPIC #{row['topic_id']}"
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p row
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next
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end
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{
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id: row['id'],
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raw: normalize_raw(row['raw']),
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user_id: user_id_from_imported_user_id(row['user_id']) || Discourse.system_user.id,
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topic_id: topic[:topic_id],
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created_at: row['created_at'],
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post_create_action: proc do |post|
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url = remove_domain(row['url'])
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Permalink.create(url: url, post_id: post.id) unless permalink_exists?(url)
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end
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}
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end
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end
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end
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def normalize_raw(raw)
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raw = raw.gsub('\n', '')
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raw = ReverseMarkdown.convert(raw)
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raw
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end
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def remove_domain(url)
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url.sub(@source_url, "")
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end
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def permalink_exists?(url)
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Permalink.find_by(url: url)
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end
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def connection
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@_connection ||= begin
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connect_uri = URI.parse(@source_url)
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http = Net::HTTP.new(connect_uri.host, connect_uri.port)
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http.open_timeout = 30
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http.read_timeout = 30
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http.use_ssl = connect_uri.scheme == "https"
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http
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end
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end
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def authorization
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@_authorization ||= begin
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auth_str = "#{@auth_email}/token:#{@auth_token}"
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"Basic #{Base64.strict_encode64(auth_str)}"
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end
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end
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def get_from_api(path, array_name, show_status: true)
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url = "#{@source_url}#{path}"
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start_time = Time.now
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while url
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get = Net::HTTP::Get.new(url)
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get['User-Agent'] = 'Discourse Zendesk Importer'
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get['Authorization'] = authorization
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retry_count = 0
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begin
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while retry_count < 5
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begin
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response = connection.request(get)
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puts("Retry successful!") if retry_count > 0
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break
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rescue => e
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puts "Request failed #{url}. Waiting and will retry. #{e.class.name} #{e.message}"
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sleep(20)
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retry_count += 1
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end
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end
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end
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json = JSON.parse(response.body)
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json[array_name].each do |row|
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yield row
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end
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url = json['next_page']
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if show_status
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if json['page'] && json['page_count']
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print_status(json['page'], json['page_count'], start_time)
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else
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print '.'
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end
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end
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end
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end
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end
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unless ARGV.length == 4 && Dir.exist?(ARGV[1])
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puts "", "Usage:", "", "bundle exec ruby script/import_scripts/zendesk_api.rb SOURCE_URL DIRNAME AUTH_EMAIL AUTH_TOKEN", ""
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exit 1
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end
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ImportScripts::Zendesk.new(ARGV[0], ARGV[1], ARGV[2], ARGV[3]).perform
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