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module Mysql2
class Client
attr_reader :query_options, :read_timeout
def self.default_query_options
@default_query_options ||= {
as: :hash, # the type of object you want each row back as; also supports :array (an array of values)
async: false, # don't wait for a result after sending the query, you'll have to monitor the socket yourself then eventually call Mysql2::Client#async_result
cast_booleans: false, # cast tinyint(1) fields as true/false in ruby
symbolize_keys: false, # return field names as symbols instead of strings
database_timezone: :local, # timezone Mysql2 will assume datetime objects are stored in
application_timezone: nil, # timezone Mysql2 will convert to before handing the object back to the caller
cache_rows: true, # tells Mysql2 to use its internal row cache for results
connect_flags: REMEMBER_OPTIONS | LONG_PASSWORD | LONG_FLAG | TRANSACTIONS | PROTOCOL_41 | SECURE_CONNECTION | CONNECT_ATTRS,
cast: true,
default_file: nil,
default_group: nil,
}
end
def initialize(opts = {})
raise Mysql2::Error, "Options parameter must be a Hash" unless opts.is_a? Hash
opts = Mysql2::Util.key_hash_as_symbols(opts)
@read_timeout = nil
@query_options = self.class.default_query_options.dup
@query_options.merge! opts
initialize_ext
# Set default connect_timeout to avoid unlimited retries from signal interruption
opts[:connect_timeout] = 120 unless opts.key?(:connect_timeout)
# TODO: stricter validation rather than silent massaging
%i[reconnect connect_timeout local_infile read_timeout write_timeout default_file default_group secure_auth init_command automatic_close enable_cleartext_plugin default_auth].each do |key|
next unless opts.key?(key)
case key
when :reconnect, :local_infile, :secure_auth, :automatic_close, :enable_cleartext_plugin
send(:"#{key}=", !!opts[key]) # rubocop:disable Style/DoubleNegation
when :connect_timeout, :read_timeout, :write_timeout
send(:"#{key}=", Integer(opts[key])) unless opts[key].nil?
else
send(:"#{key}=", opts[key])
end
end
# force the encoding to utf8
self.charset_name = opts[:encoding] || 'utf8'
ssl_options = opts.values_at(:sslkey, :sslcert, :sslca, :sslcapath, :sslcipher)
ssl_set(*ssl_options) if ssl_options.any? || opts.key?(:sslverify)
self.ssl_mode = parse_ssl_mode(opts[:ssl_mode]) if opts[:ssl_mode]
flags = case opts[:flags]
when Array
parse_flags_array(opts[:flags], @query_options[:connect_flags])
when String
parse_flags_array(opts[:flags].split(' '), @query_options[:connect_flags])
when Integer
@query_options[:connect_flags] | opts[:flags]
else
@query_options[:connect_flags]
end
# SSL verify is a connection flag rather than a mysql_ssl_set option
flags |= SSL_VERIFY_SERVER_CERT if opts[:sslverify]
if %i[user pass hostname dbname db sock].any? { |k| @query_options.key?(k) }
warn "============= WARNING FROM mysql2 ============="
warn "The options :user, :pass, :hostname, :dbname, :db, and :sock are deprecated and will be removed at some point in the future."
warn "Instead, please use :username, :password, :host, :port, :database, :socket, :flags for the options."
warn "============= END WARNING FROM mysql2 ========="
end
user = opts[:username] || opts[:user]
pass = opts[:password] || opts[:pass]
host = opts[:host] || opts[:hostname]
port = opts[:port]
database = opts[:database] || opts[:dbname] || opts[:db]
socket = opts[:socket] || opts[:sock]
# Correct the data types before passing these values down to the C level
user = user.to_s unless user.nil?
pass = pass.to_s unless pass.nil?
host = host.to_s unless host.nil?
port = port.to_i unless port.nil?
database = database.to_s unless database.nil?
socket = socket.to_s unless socket.nil?
conn_attrs = parse_connect_attrs(opts[:connect_attrs])
connect user, pass, host, port, database, socket, flags, conn_attrs
end
def parse_ssl_mode(mode)
m = mode.to_s.upcase
if m.start_with?('SSL_MODE_')
return Mysql2::Client.const_get(m) if Mysql2::Client.const_defined?(m)
else
x = 'SSL_MODE_' + m
return Mysql2::Client.const_get(x) if Mysql2::Client.const_defined?(x)
end
warn "Unknown MySQL ssl_mode flag: #{mode}"
end
def parse_flags_array(flags, initial = 0)
flags.reduce(initial) do |memo, f|
fneg = f.start_with?('-') ? f[1..-1] : nil
if fneg && fneg =~ /^\w+$/ && Mysql2::Client.const_defined?(fneg)
memo & ~ Mysql2::Client.const_get(fneg)
elsif f && f =~ /^\w+$/ && Mysql2::Client.const_defined?(f)
memo | Mysql2::Client.const_get(f)
else
warn "Unknown MySQL connection flag: '#{f}'"
memo
end
end
end
# Set default program_name in performance_schema.session_connect_attrs
# and performance_schema.session_account_connect_attrs
def parse_connect_attrs(conn_attrs)
return {} if Mysql2::Client::CONNECT_ATTRS.zero?
conn_attrs ||= {}
conn_attrs[:program_name] ||= $PROGRAM_NAME
conn_attrs.each_with_object({}) do |(key, value), hash|
hash[key.to_s] = value.to_s
end
end
def query(sql, options = {})
Thread.handle_interrupt(::Mysql2::Util::TIMEOUT_ERROR_CLASS => :never) do
_query(sql, @query_options.merge(options))
end
end
def query_info
info = query_info_string
return {} unless info
info_hash = {}
info.split.each_slice(2) { |s| info_hash[s[0].downcase.delete(':').to_sym] = s[1].to_i }
info_hash
end
def info
self.class.info
end
class << self
private
def local_offset
::Time.local(2010).utc_offset.to_r / 86400
end
end
end
end