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