151 lines
4.1 KiB
Ruby
151 lines
4.1 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module LegacyGithubImport
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class Client
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GITHUB_SAFE_REMAINING_REQUESTS = 100
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GITHUB_SAFE_SLEEP_TIME = 500
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attr_reader :access_token, :host, :api_version, :wait_for_rate_limit_reset
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def initialize(access_token, host: nil, api_version: 'v3', wait_for_rate_limit_reset: true)
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@access_token = access_token
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@host = host.to_s.sub(%r{/+\z}, '')
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@api_version = api_version
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@users = {}
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@wait_for_rate_limit_reset = wait_for_rate_limit_reset
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if access_token
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::Octokit.auto_paginate = false
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end
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end
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def api
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@api ||= ::Octokit::Client.new(
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access_token: access_token,
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api_endpoint: api_endpoint,
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# If there is no config, we're connecting to github.com and we
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# should verify ssl.
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connection_options: {
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ssl: { verify: config ? config['verify_ssl'] : true }
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}
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)
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end
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def client
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unless config
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raise Projects::ImportService::Error,
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'OAuth configuration for GitHub missing.'
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end
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@client ||= ::OAuth2::Client.new(
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config.app_id,
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config.app_secret,
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github_options.merge(ssl: { verify: config['verify_ssl'] })
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)
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end
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def authorize_url(redirect_uri)
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client.auth_code.authorize_url({
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redirect_uri: redirect_uri,
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scope: "repo, user, user:email"
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})
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end
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def get_token(code)
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client.auth_code.get_token(code).token
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end
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def method_missing(method, *args, &block)
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if api.respond_to?(method)
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request(method, *args, &block)
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else
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super(method, *args, &block)
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end
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end
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def respond_to?(method)
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api.respond_to?(method) || super
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end
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def user(login)
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return unless login.present?
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return @users[login] if @users.key?(login)
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@users[login] = api.user(login)
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end
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private
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def api_endpoint
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if host.present? && api_version.present?
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"#{host}/api/#{api_version}"
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else
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github_options[:site] || ::Octokit::Default.api_endpoint
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end
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end
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def config
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Gitlab::Auth::OAuth::Provider.config_for('github')
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end
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def github_options
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if config
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config["args"]["client_options"].deep_symbolize_keys
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else
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OmniAuth::Strategies::GitHub.default_options[:client_options].symbolize_keys
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end
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end
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def rate_limit
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api.rate_limit!
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# GitHub Rate Limit API returns 404 when the rate limit is
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# disabled. In this case we just want to return gracefully
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# instead of spitting out an error.
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rescue ::Octokit::NotFound
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nil
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end
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def has_rate_limit?
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return @has_rate_limit if defined?(@has_rate_limit)
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@has_rate_limit = rate_limit.present?
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end
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def rate_limit_exceed?
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has_rate_limit? && rate_limit.remaining <= GITHUB_SAFE_REMAINING_REQUESTS
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end
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def rate_limit_sleep_time
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rate_limit.resets_in + GITHUB_SAFE_SLEEP_TIME
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end
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def request(method, *args, &block)
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sleep rate_limit_sleep_time if wait_for_rate_limit_reset && rate_limit_exceed?
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data = api.__send__(method, *args) # rubocop:disable GitlabSecurity/PublicSend
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return data unless data.is_a?(Array)
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last_response = api.last_response
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if block_given?
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yield data
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# api.last_response could change while we're yielding (e.g. fetching labels for each PR)
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# so we cache our own last response
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each_response_page(last_response, &block)
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else
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each_response_page(last_response) { |page| data.concat(page) }
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data
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end
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end
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def each_response_page(last_response)
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while last_response.rels[:next]
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sleep rate_limit_sleep_time if rate_limit_exceed?
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last_response = last_response.rels[:next].get
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yield last_response.data if last_response.data.is_a?(Array)
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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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