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# Detect user based on identifier like
# key-13 or user-36 or last commit
module Gitlab
module Identifier
def identify(identifier, project = nil, newrev = nil)
if identifier.blank?
identify_using_commit(project, newrev)
elsif identifier =~ /\Auser-\d+\Z/
# git push over http
identify_using_user(identifier)
elsif identifier =~ /\Akey-\d+\Z/
# git push over ssh
identify_using_ssh_key(identifier)
end
end
# Tries to identify a user based on a commit SHA.
def identify_using_commit(project, ref)
return if project.nil? && ref.nil?
commit = project.commit(ref)
return if !commit || !commit.author_email
identify_with_cache(:email, commit.author_email) do
commit.author
end
end
# Tries to identify a user based on a user identifier (e.g. "user-123").
# rubocop: disable CodeReuse/ActiveRecord
def identify_using_user(identifier)
user_id = identifier.gsub("user-", "")
identify_with_cache(:user, user_id) do
User.find_by(id: user_id)
end
end
# rubocop: enable CodeReuse/ActiveRecord
# Tries to identify a user based on an SSH key identifier (e.g. "key-123").
def identify_using_ssh_key(identifier)
key_id = identifier.gsub("key-", "")
identify_with_cache(:ssh_key, key_id) do
User.find_by_ssh_key_id(key_id)
end
end
def identify_with_cache(category, key)
if identification_cache[category].key?(key)
identification_cache[category][key]
else
identification_cache[category][key] = yield
end
end
def identification_cache
@identification_cache ||= {
email: {},
user: {},
ssh_key: {}
}
end
end
end
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