keyble.js.map

{
  "version": 3,
  "file": "keyble.js",
  "sourceRoot": "",
  "sources": [
    "keyble.coffee"
  ],
  "names": [],
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  "sourcesContent": [
    "'use strict'\n\n# Checks if <value> is an array. Returns true if it is an array, false otherwise\nis_array = (value) ->\n\tArray.isArray(value)\n\narrays_are_equal = (array1, array2) ->\n\tif (not (is_array(array1) and is_array(array2))) then return false\n\tif (array1 is array2) then return true\n\tif (array1.length isnt array2.length) then return false\n\tfor index in [0...array1.length] by 1\n\t\tif (array1[index] isnt array2[index]) then return false\n\ttrue\n\n# Returns true if the passed argument <value> is neither null nor undefined\nis_valid_value = (value) ->\n\t((value isnt undefined) and (value isnt null))\n\n# Returns the first value in <values...> that is neither null nor undefined\nfirst_valid_value = (values...) ->\n\tfor value in values\n\t\tif is_valid_value(value)\n\t\t\treturn value\n\treturn\n\n# Converts integer value <integer> into a zero-prefixed hexadecimal string of length <number_of_digits>\ninteger_to_zero_prefixed_hex_string = (integer, number_of_digits) ->\n\t('0'.repeat(number_of_digits) + integer.toString(0x10)).slice(-number_of_digits)\n\n# Convert the byte array <byte_array> to a hexadecimal string. Every byte value is converted to a two-digit, zero padded hexadecimal string, prefixed with string <prefix_string> (default:\"\"), suffixed with string <suffix_string> (default:\"\"). All bytes are separated with string <separator_string> (default:\" \")\nbyte_array_to_hex_string = (byte_array, separator_string, prefix_string, suffix_string) ->\n\tseparator_string = first_valid_value(separator_string, ' ')\n\tprefix_string = first_valid_value(prefix_string, '')\n\tsuffix_string = first_valid_value(suffix_string, '')\n\t(\"#{prefix_string}#{integer_to_zero_prefixed_hex_string(byte, 2)}#{suffix_string}\" for byte in byte_array).join(separator_string)\n\nbyte_array_to_integer = (byte_array, start_offset, end_offset) ->\n\tstart_offset = first_valid_value(start_offset, 0)\n\tend_offset = first_valid_value(end_offset, byte_array.length)\n\ttemp = 0\n\tfor offset in [start_offset...end_offset] by 1\n\t\tif offset < 0\n\t\t\toffset += byte_array.length\n\t\ttemp = ((temp * 0x100) + byte_array[offset])\n\ttemp\n\n# Returns true if the bit with index <bit_index> is set in <value>, false otherwise\nbit_is_set = (value, bit_index) ->\n\t((value & (1 << bit_index)) isnt 0)\n\n# Creates and returns mixin function (<object>, <mixin_objects...>) -> that mixins all properties for which <key_filter_function>(<key>, <mixin_object>, <object>) returns true into <object>\nmixin_factory = (key_filter_function) ->\n\t(object, mixin_objects...) ->\n\t\tfor mixin_object in mixin_objects\n\t\t\tif mixin_object\n\t\t\t\tfor key of mixin_object\n\t\t\t\t\tif key_filter_function(key, mixin_object, object)\n\t\t\t\t\t\tobject[key] = mixin_object[key]\n\t\tobject\n\n# (<object>, <mixin_objects...>) -> Mixin all own properties of <mixin_objects...> into <object>\nmixin_own = mixin_factory (key, mixin_object) ->\n\tmixin_object.hasOwnProperty(key)\n\n# A prototype object providing the basic features of extendable classes\nExtendable =\n\textend: (properties) ->\n\t\textended = Object.create(@)\n\t\textended.__super__ = @\n\t\tmixin_own(extended, properties)\n\tcreate: ->\n\t\tinstance = Object.create(@)\n\t\tinstance.__type__ = @\n\t\t@initialize.apply(instance, arguments)\n\t\tinstance\n\tinitialize: ->\n\n# An abstract prototype object for message types\nMessage = Extendable.extend\n\tinitialize: (data) ->\n\t\tif is_array(data)\n\t\t\t@data_bytes = data\n\t\telse\n\t\t\t@data_bytes = @encode(data)\n\t\t@data = @decode()\n\t\treturn\n\tdecode: ->\n\t\tdata = {}\n\t\tfor key, value_function of @properties\n\t\t\tdata[key] = value_function.apply(@)\n\t\tdata\n\tencode: -> []\n\tis_secure: ->\n\t\tbit_is_set(@id, 7)\n\tproperties: {}\n\n# Create a new message type with properties <properties>\nmessage_type = (properties) ->\n\tMessage.extend properties\n\n# This class represents \"CLOSE_CONNECTION\" messages; messages sent to the Smart Lock in order to close the connection\n# Java class \"de.eq3.ble.key.android.a.a.o\" in original app\nClose_Connection_Message = message_type\n\tid: 0x06\n\tlabel: 'CLOSE_CONNECTION'\n\n# This class represents \"COMMAND\" messages; messages sent to the Smart Lock requesting to perform one of the three commands/actions (0=Lock, 1=Unlock, 2=Open)\n# Java class \"de.eq3.ble.key.android.a.a.p\" in original app\nCommand_Message = message_type\n\tid: 0x87\n\tlabel: 'COMMAND'\n\tencode: (data) ->\n\t\t[data.command_id]\n\tproperties:\n\t\tcommand_id: -> @data_bytes[0]\n\n# Returns a new array obtained by concatenating all arrays passed as arguments\nconcatenated_array = ->\n\tArray.prototype.concat.apply([], arguments)\n\n# Convert a Buffer instance <buffer> to an array of byte integers\nbuffer_to_byte_array = (buffer) ->\n\t[buffer...]\n\n# AES-128-encrypt <data> (a byte array) with <key> (a byte array), in ECB mode, and return the encrypted data as a byte array\nencrypt_aes_ecb = (data, key) ->\n\taesjs = require('aes-js')\n\tcipher = new aesjs.ModeOfOperation.ecb(key)\n\tbuffer_to_byte_array(cipher.encrypt(data))\n\n# Returns the smallest value equal or larger than <value> that equals (<minimum> + (x * <step>)) for a natural number x\ngeneric_ceil = (value, step, minimum) ->\n\tstep = first_valid_value(step, 1)\n\tminimum = first_valid_value(minimum, 0)\n\t((Math.ceil((value - minimum) / step) * step) + minimum)\n\n# Extract the byte with index <byte_index> from the multi-byte integer value <integer>. 0 is the lowest/least significant byte index\nextract_byte = (integer, byte_index) ->\n\t((integer >> (byte_index * 8)) & 0xFF)\n\n# Convert the integer value <integer> to a low-endian byte array of length <number_of_bytes>\ninteger_to_byte_array = (integer, number_of_bytes) ->\n\t(extract_byte(integer, byte_index) for byte_index in [(number_of_bytes - 1)..0] by -1)\n\n# Returns a function with argument <value> that returns true if <value> is of type <type_string>, false otherwise\nis_of_type = (type_string) ->\n\t(value) ->\n\t\t(typeof(value) is type_string)\n\n# Returns true if the passed argument <value> is of type \"function\", false otherwise\nis_function = is_of_type('function')\n\n# Create a new array of length <length>, filled with <element>. If <element> is a function, it will be called with the index of the element to be created as argument, and must return the element at this index\ncreate_array_of_length = (length, element) ->\n\tcreate_element = (if is_function(element) then element else (-> element))\n\t(create_element(index) for index in [0...length] by 1)\n\n# Returns a new array by padding array <array> with as many <pad_element> elements until it has length <length>\npadded_array = (array, length, pad_element) ->\n\tconcatenated_array(array, create_array_of_length(Math.max((length - array.length), 0), pad_element))\n\n# XOR the byte array <byte_array> with <xor_byte_array>. Returns a new byte array with the same length as <byte_array>. The first byte in <byte_array> will be XORed with the byte at index <xor_byte_array_offset> in <xor_byte_array> (default: 0), if the end of <xor_byte_array> is reached, it will begin at the start of <byte_array> again\nxor_array = (byte_array, xor_byte_array, xor_byte_array_offset) ->\n\txor_byte_array_offset = first_valid_value(xor_byte_array_offset, 0)\n\t((byte ^ xor_byte_array[(xor_byte_array_offset + index) % xor_byte_array.length]) for byte, index in byte_array)\n\n# Compute the authentication value for <data> (a byte array) with message type ID <message_type_id> (an integer), session-open-nonce <session_open_nonce> (a byte array), security_counter <security_counter> (an integer) and AES-128-key <key> (a byte array)\ncompute_authentication_value = (data, message_type_id, session_open_nonce, security_counter, key) ->\n\tnonce = compute_nonce(message_type_id, session_open_nonce, security_counter)\n\tdata_length = data.length\n\tpadded_data_length = generic_ceil(data_length, 16, 0)\n\tpadded_data = padded_array(data, padded_data_length, 0)\n\tencrypted_xor_data = encrypt_aes_ecb(\n\t\tconcatenated_array(\n\t\t\t[9],\n\t\t\tnonce,\n\t\t\tinteger_to_byte_array(data_length, 2),\n\t\t),\n\t\tkey,\n\t)\n\tfor padded_data_offset in [0...padded_data_length] by 0x10\n\t\tencrypted_xor_data = encrypt_aes_ecb(\n\t\t\txor_array(\n\t\t\t\tencrypted_xor_data,\n\t\t\t\tpadded_data,\n\t\t\t\tpadded_data_offset,\n\t\t\t),\n\t\t\tkey,\n\t\t)\n\txor_array(\n\t\tencrypted_xor_data.slice(0, 4),\n\t\tencrypt_aes_ecb(\n\t\t\tconcatenated_array(\n\t\t\t\t[1],\n\t\t\t\tnonce,\n\t\t\t\t[0, 0],\n\t\t\t),\n\t\t\tkey,\n\t\t),\n\t)\n\n# This class represents \"CONNECTION_INFO\" messages; messages with informations like the remote session nonce etc.. Sent by the Smart Lock in response to CONNECTION_REQUEST messages\n# Java class \"de.eq3.ble.key.android.a.a.q\" in original app\nConnection_Info_Message = message_type\n\tid: 0x03\n\tlabel: 'CONNECTION_INFO'\n\tproperties:\n\t\tuser_id: -> @data_bytes[0]\n\t\tremote_session_nonce: -> @data_bytes.slice(1, 9)\n\t\tbootloader_version: -> @data_bytes[10]\n\t\tapplication_version: -> @data_bytes[11]\n\n# This class represents \"CONNECTION_REQUEST\" messages; messages sent to the Smart Lock in order to set up a secure connection\n# Java class \"de.eq3.ble.key.android.a.a.r\" in original app\nConnection_Request_Message = message_type\n\tid: 0x02\n\tlabel: 'CONNECTION_REQUEST'\n\tencode: (data) ->\n\t\tconcatenated_array(\n\t\t\t[data.user_id],\n\t\t\tdata.local_session_nonce,\n\t\t)\n\tproperties:\n\t\tuser_id: -> @data_bytes[0]\n\t\tlocal_session_nonce: -> @data_bytes.slice(1, 9)\n\n# This class represents \"STATUS_CHANGED_NOTIFICATION\" messages\n# Java class \"de.eq3.ble.key.android.a.a.ae\" in original app\nStatus_Changed_Notification_Message = message_type\n\tid: 0x05\n\tlabel: 'STATUS_CHANGED_NOTIFICATION'\n\n# This class represents \"STATUS_INFO\" messages\n# Java class \"de.eq3.ble.key.android.a.a.af\" in original app\nStatus_Info_Message = message_type\n\tid: 0x83\n\tlabel: 'STATUS_INFO'\n\tproperties:\n\t\ta: -> bit_is_set(@data_bytes[0], 6)\n\t\tuser_right_type: -> ((@data_bytes[0] & 0x30) >> 4)\n\t\te: -> bit_is_set(@data_bytes[1], 7)\n\t\tf: -> bit_is_set(@data_bytes[1], 4)\n\t\tg: -> bit_is_set(@data_bytes[1], 0)\n\t\th: -> bit_is_set(@data_bytes[2], 5)\n\t\ti: -> bit_is_set(@data_bytes[2], 4)\n\t\tj: -> bit_is_set(@data_bytes[2], 3)\n\t\tlock_status: -> (@data_bytes[2] & 0x07)\n\t\tl: -> @data_bytes[4]\n\t\tm: -> @data_bytes[5]\n\n# Canonicalize hexadecimal string <hex_string> by removing all non-hexadecimal characters, and converting all hex digits to lower case\ncanonicalize_hex_string = (hex_string) ->\n\thex_string.replace(/[^0-9A-Fa-f]/g, '').toLowerCase()\n\n# Returns an array with chunks/slices of <slicable>. Each chunk/slice has the same length <chunk_length> (except for the last chunk/slice, which may have a smaller length)\nsplit_into_chunks = (slicable, chunk_length) ->\n\t(slicable.slice(index, (index + chunk_length)) for index in [0...slicable.length] by chunk_length)\n\n# Convert the hexadecimal string <hex_string> to a byte array\nhex_string_to_byte_array = (hex_string) ->\n\t(parseInt(byte_hex_string, 0x10) for byte_hex_string in split_into_chunks(canonicalize_hex_string(hex_string), 2))\n\n# Returns true if the passed argument <value> is a Buffer instance, false otherwise\nis_buffer = (value) ->\n\tBuffer.isBuffer(value)\n\n# Returns true if the passed argument <value> is a string, false otherwise\nis_string = is_of_type('string')\n\n# Convert <value>, which may either be a byte array, a hexadecimal string or a Buffer instance, to a byte array. If <value> is neither of those, null is returned\nconvert_to_byte_array = (value) ->\n\tif is_array(value)\n\t\treturn value\n\tif is_string(value)\n\t\treturn hex_string_to_byte_array(value)\n\tif is_buffer(value)\n\t\treturn buffer_to_byte_array(value)\n\treturn null\n\n# Returns a random integer value, in the range from <minimum_value> (inclusive, default:0) to <maximum_value_exclusive> (exclusive)\ncreate_random_integer = (maximum_value, minimum_value) ->\n\tminimum_value = first_valid_value(minimum_value, 0)\n\t(Math.floor(Math.random() * (maximum_value - minimum_value)) + minimum_value)\n\n# Returns a single random integer in the byte range\ncreate_random_byte = ->\n\tcreate_random_integer(0x100)\n\n# Create a new array of length <length>, filled with random byte values\ncreate_random_byte_array = (length) ->\n\tcreate_array_of_length(length, create_random_byte)\n\n# Compute the \"nonce\" for a message with type ID <message_type_id>, session-open-nonce <session_open_nonce>, and security counter <security_counter>\ncompute_nonce = (message_type_id, session_open_nonce, security_counter) ->\n\tconcatenated_array(\n\t\t[message_type_id],\n\t\tsession_open_nonce,\n\t\t[0, 0],\n\t\tinteger_to_byte_array(security_counter, 2),\n\t)\n\n# Encrypt/Decrypt <data> (a byte array) with message type ID <message_type_id> (an integer), session-open-nonce <session_open_nonce> (a byte array), security_counter <security_counter> (an integer) and AES-128-key <key> (a byte array). If <data> is decrypted, it will be encrypted; if it is encrypted, it will be decrypted\ncrypt_data = (data, message_type_id, session_open_nonce, security_counter, key) ->\n\tnonce = compute_nonce(message_type_id, session_open_nonce, security_counter)\n\txor_data = []\n\tfor index in [0...(generic_ceil(data.length, 16, 0) // 0x10)] by 1\n\t\txor_data = concatenated_array(\n\t\t\txor_data,\n\t\t\tencrypt_aes_ecb(\n\t\t\t\tconcatenated_array(\n\t\t\t\t\t[1],\n\t\t\t\t\tnonce,\n\t\t\t\t\tinteger_to_byte_array((index + 1), 2),\n\t\t\t\t),\n\t\t\t\tkey,\n\t\t\t),\n\t\t)\n\txor_array(\n\t\tdata,\n\t\txor_data,\n\t)\n\n# Debug output function for keyble Bluetooth communication\ndebug_communication = require('debug')('keyble:communication')\n\n# Debug output function for keyble events\ndebug_events = require('debug')('keyble:events')\n\n# Import/Require the \"events\" module = the EventEmitter class\nEvent_Emitter = require('events')\n\n# This class represents \"FRAGMENT_ACK\" messages; messages that acknowledge the receival of a fragment of a message (except for the last one)\n# Java class \"de.eq3.ble.key.android.a.a.t\" in original app\nFragment_Ack_Message = message_type\n\tid: 0x00\n\tlabel: 'FRAGMENT_ACK'\n\tencode: (data) ->\n\t\t[data.fragment_id]\n\tproperties:\n\t\tfragment_id: -> @data_bytes[0]\n\n# This class represents a message fragment. Bluetooth characteristics can only transfer a very limited number of bytes at once, so larger messages need to be split into several fragments/parts\nMessage_Fragment = Extendable.extend\n\tinitialize: (@byte_array) ->\n\tget_status_byte: ->\n\t\t@byte_array[0]\n\tget_number_of_remaining_fragments: ->\n\t\t(@get_status_byte() & 0x7F)\n\tget_message_type_id: ->\n\t\tif not @is_first()\n\t\t\tthrow new Error('Is not first fragment')\n\t\t@byte_array[1]\n\tis_first: ->\n\t\tbit_is_set(@get_status_byte(), 7)\n\tis_last: ->\n\t\t(@get_number_of_remaining_fragments() is 0)\n\tis_complete_message: ->\n\t\t(@is_first() and @is_last())\n\tget_data_byte_array: ->\n\t\t@byte_array.slice(if @is_first() then 2 else 1)\n\n# Convert an array of objects <objects_array> to an object of objects, where each property key/name is the value of property <property_name> of the object, and the property value is the object itself\ndictify_array = (objects_array, property_name) ->\n\ttemp = {}\n\tfor object in objects_array\n\t\ttemp[object[property_name]] = object\n\ttemp\n\n# This class represents \"ANSWER_WITH_SECURITY\" messages\n# Java class \"de.eq3.ble.key.android.a.a.e\" in original app\nAnswer_With_Security_Message = message_type\n\tid: 0x81\n\tlabel: 'ANSWER_WITH_SECURITY'\n\tproperties:\n\t\ta: -> ((@data_bytes[0] & 0x80) is 0)\n\t\tb: -> ((@data_bytes[0] & 0x81) is 1)\n\n# This class represents \"ANSWER_WITHOUT_SECURITY\" messages\n# Java class \"de.eq3.ble.key.android.a.a.f\" in original app\nAnswer_Without_Security_Message = message_type\n\tid: 0x01\n\tlabel: 'ANSWER_WITHOUT_SECURITY'\n\tproperties:\n\t\ta: -> ((@data_bytes[0] & 0x80) is 0)\n\t\tb: -> ((@data_bytes[0] & 0x81) is 1)\n\n# This class represents \"PAIRING_REQUEST\" messages\n# Java class \"de.eq3.ble.key.android.a.a.ac\" in original app\nPairing_Request_Message = message_type\n\tid: 0x04\n\tlabel: 'PAIRING_REQUEST'\n\tencode: (data) ->\n\t\tconcatenated_array(\n\t\t\t[data.user_id],\n\t\t\tpadded_array(data.encrypted_pair_key, 22, 0),\n\t\t\tinteger_to_byte_array(data.security_counter, 2),\n\t\t\tdata.authentication_value,\n\t\t)\n\tproperties:\n\t\tuser_id: -> @data_bytes[0]\n\t\tencrypted_pair_key: -> @data_bytes.slice(1, 23)\n\t\tsecurity_counter: -> byte_array_to_integer(@data_bytes, 23, 2)\n\t\tauthentication_value: -> @data_bytes.slice(25, 29)\n\n# This class represents \"STATUS_REQUEST\" messages; messages sent to the Smart Lock, informing the current date/time, and requesting status information\n# Java class \"de.eq3.ble.key.android.a.a.ag\" in original app\nStatus_Request_Message = message_type\n\tid: 0x82\n\tlabel: 'STATUS_REQUEST'\n\tencode: (data) ->\n\t\tdate = data.date\n\t\t[\n\t\t\t(date.getFullYear() - 2000)\n\t\t\t(date.getMonth() + 1)\n\t\t\tdate.getDate()\n\t\t\tdate.getHours()\n\t\t\tdate.getMinutes()\n\t\t\tdate.getSeconds()\n\t\t]\n\tproperties:\n\t\tdate: -> (new Date(\n\t\t\t(@data_bytes[0] + 2000),\n\t\t\t(@data_bytes[1] - 1),\n\t\t\t@data_bytes[2],\n\t\t\t@data_bytes[3],\n\t\t\t@data_bytes[4],\n\t\t\t@data_bytes[5],\n\t\t))\n\n# This class represents \"USER_INFO\" messages\n# Java class \"de.eq3.ble.key.android.a.a.ah\" in original app\nUser_Info_Message = message_type\n\tid: 0x8f\n\tlabel: 'USER_INFO'\n\n# Convert string <string> to a UTF-8 byte array\nstring_to_utf8_byte_array = (string) ->\n\tbuffer_to_byte_array(Buffer.from(string, 'utf8'))\n\n# Convert UTF-8 encoded byte array <byte_array> to a String\nutf8_byte_array_to_string = (byte_array) ->\n\tBuffer.from(byte_array).toString('utf8')\n\n# This class represents \"USER_NAME_SET\" messages; messages sent to the Smart Lock requesting to change a user name\n# Java class \"de.eq3.ble.key.android.a.a.al\" in original app\nUser_Name_Set_Message = message_type\n\tid: 0x90\n\tlabel: 'USER_NAME_SET'\n\tencode: (data) ->\n\t\tconcatenated_array(\n\t\t\t[data.user_id],\n\t\t\tpadded_array(string_to_utf8_byte_array(data.user_name), 20, 0),\n\t\t)\n\tproperties:\n\t\tuser_id: -> @data_bytes[0]\n\t\tuser_name: -> utf8_byte_array_to_string(@data_bytes.slice(1, @data_bytes.indexOf(0, 1)))\n\n# An array of all (currently implemented) message types\nmessage_types = [\n\tFragment_Ack_Message\n\tAnswer_Without_Security_Message\n\tConnection_Request_Message\n\tConnection_Info_Message\n\tPairing_Request_Message\n\tStatus_Changed_Notification_Message\n\tClose_Connection_Message\n\tAnswer_With_Security_Message\n\tStatus_Request_Message\n\tStatus_Info_Message\n\tCommand_Message\n\tUser_Info_Message\n\tUser_Name_Set_Message\n]\n\n# An object that has the various message types as properties, and the labels of these message types as property names/keys\nmessage_types_by_id = dictify_array(message_types, 'id')\n\n# Import/Require the \"simble\" module for communicating with Bluetooth Low Energy peripherals\nsimble = require('simble')\n\n# An object with the possible Key_Ble states\nstate = \n\tdisconnected: 0\n\tconnected: 1\n\tnonces_exchanged: 2\n\tsecured: 3\n\n# A class that represents the eQ-3 eqiva Bluetooth smart lock\nKey_Ble = class extends Event_Emitter\n\n\tconstructor: (options) ->\n\t\tsuper()\n\t\t@address = simble.canonicalize.address(options.address)\n\t\t@user_id = first_valid_value(options.user_id, 0xFF)\n\t\t@user_key = convert_to_byte_array(options.user_key)\n\t\t@auto_disconnect_time = first_valid_value(options.auto_disconnect_time, 15.0)\n\t\t@set_status_update_time(options.status_update_time)\n\t\t@received_message_fragments = []\n\t\t@local_security_counter = 1\n\t\t@remote_security_counter = 0\n\t\t@state = state.disconnected\n\t\t@lock_status_id = null\n\t\treturn\n\n\tset_status_update_time: (status_update_time) ->\n\t\t@status_update_time = first_valid_value(status_update_time, 600.0)\n\t\t@set_status_update_timer()\n\t\treturn\n\n\t# Await up to <timeout> (default: 1000) milliseconds for the event with ID <event_id> (a string). If <timeout> is 0, wait forever. Returns a Promise that resolves when the event occurs, and rejects if a timeout situation occurs\n\tawait_event: (event_id) ->\n\t\tnew Promise (resolve, reject) =>\n\t\t\t@once event_id, (args...) ->\n\t\t\t\tresolve(args)\n\t\t\t\treturn\n\t\t\treturn\n\n\tawait_message: (message_type) ->\n\t\t@await_event(\"received:message:#{message_type}\")\n\n\tset_user_name: (user_name, user_id) ->\n\t\tuser_id = first_valid_value(user_id, @user_id)\n\t\t@send_message User_Name_Set_Message.create\n\t\t\tuser_id: user_id\n\t\t\tuser_name: user_name\n\t\t.then =>\n\t\t\t@await_message('USER_INFO')\n\n\tpairing_request: (card_key) ->\n\t\tcard_key = convert_to_byte_array(card_key)\n\t\t@user_key = create_random_byte_array(16)\n\t\t@ensure_nonces_exchanged()\n\t\t.then =>\n\t\t\t@send_message Pairing_Request_Message.create\n\t\t\t\tuser_id: @user_id\n\t\t\t\tencrypted_pair_key: crypt_data(\n\t\t\t\t\t@user_key,\n\t\t\t\t\tPairing_Request_Message.id,\n\t\t\t\t\t@remote_session_nonce,\n\t\t\t\t\t@local_security_counter,\n\t\t\t\t\tcard_key\n\t\t\t\t)\n\t\t\t\tsecurity_counter: @local_security_counter\n\t\t\t\tauthentication_value: compute_authentication_value(\n\t\t\t\t\tpadded_array(concatenated_array([@user_id], @user_key), 23, 0),\n\t\t\t\t\tPairing_Request_Message.id,\n\t\t\t\t\t@remote_session_nonce,\n\t\t\t\t\t@local_security_counter,\n\t\t\t\t\tcard_key\n\t\t\t\t)\n\t\t.then =>\n\t\t\t@await_message('ANSWER_WITH_SECURITY')\n\t\t.then =>\n\t\t\tuser_id: @user_id\n\t\t\tuser_key: byte_array_to_hex_string(@user_key, '')\n\n\temit: (event_id) ->\n\t\tdebug_events \"Event: #{event_id}\"\n\t\tsuper arguments...\n\n\t# Lock the smart lock\n\tlock: ->\n\t\tif (@lock_status_id is 3) then return Promise.resolve()\n\t\t@send_command(0)\n\t\t.then =>\n\t\t\t@await_event 'status:LOCKED'\n\n\t# Unlock the smart lock\n\tunlock: ->\n\t\tif (@lock_status_id is 2) then return Promise.resolve()\n\t\t@send_command(1)\n\t\t.then =>\n\t\t\t@await_event 'status:UNLOCKED'\n\n\t# Open the smart lock\n\topen: ->\n\t\tif (@lock_status_id is 4) then return Promise.resolve()\n\t\t@send_command(2)\n\t\t.then =>\n\t\t\t@await_event 'status:OPENED'\n\n\t# Send a COMMAND message with command/action ID <command_id> (0 = lock, 1 = unlock, 2 = open)\n\tsend_command: (command_id) ->\n\t\t@send_message Command_Message.create\n\t\t\tcommand_id: command_id\n\n\ton_message_fragment_received: (message_fragment) ->\n\t\t@received_message_fragments.push(message_fragment)\n\t\t@emit 'received:fragment', message_fragment\n\t\tif message_fragment.is_last()\n\t\t\tmessage_data_bytes = @received_message_fragments.reduce (byte_array, message_fragment) ->\n\t\t\t\t\tconcatenated_array(byte_array, message_fragment.get_data_byte_array())\n\t\t\t\t, []\n\t\t\tMessage_Type = message_types_by_id[@received_message_fragments[0].get_message_type_id()]\n\t\t\tif Message_Type.is_secure()\n\t\t\t\tmessage_security_counter = byte_array_to_integer(message_data_bytes, -6, -4)\n\t\t\t\tif (message_security_counter <= @remote_security_counter) then throw new Error('Received message contains invalid security counter')\n\t\t\t\tmessage_authentication_value = message_data_bytes.slice(-4)\n\t\t\t\t@remote_security_counter = message_security_counter\n\t\t\t\tmessage_data_bytes = crypt_data(message_data_bytes.slice(0, -6), Message_Type.id, @local_session_nonce, @remote_security_counter, @user_key)\n\t\t\t\tcomputed_authentication_value = compute_authentication_value(message_data_bytes, Message_Type.id, @local_session_nonce, @remote_security_counter, @user_key)\n\t\t\t\tif (not arrays_are_equal(message_authentication_value, computed_authentication_value)) then throw new Error('Received message contains invalid authentication value')\n\t\t\t@received_message_fragments = []\n\t\t\t@on_message_received(Message_Type.create(message_data_bytes))\n\t\telse\n\t\t\t@send_message Fragment_Ack_Message.create\n\t\t\t\tfragment_id: message_fragment.get_status_byte()\n\t\treturn\n\n\tset_status_update_timer: ->\n\t\tclearTimeout(@status_update_timer)\n\t\tif (@status_update_time > 0)\n\t\t\t@status_update_timer = setTimeout =>\n\t\t\t\t\t@request_status()\n\t\t\t\t\treturn\n\t\t\t\t, (@status_update_time * 1000)\n\n\ton_message_received: (message) ->\n\t\tdebug_communication \"Received message of type #{message.label}, data bytes <#{byte_array_to_hex_string(message.data_bytes, ' ')}>, data #{JSON.stringify(message.data)}\"\n\t\t@emit 'received:message', message\n\t\t@emit \"received:message:#{message.label}\", message\n\t\tswitch message.__type__\n\t\t\twhen Connection_Info_Message\n\t\t\t\t@user_id = message.data.user_id\n\t\t\t\t@remote_session_nonce = message.data.remote_session_nonce\n\t\t\t\t@local_security_counter = 1\n\t\t\t\t@remote_security_counter = 0\n\t\t\twhen Status_Info_Message\n\t\t\t\tlock_status_id = message.data.lock_status\n\t\t\t\tlock_status_string = {\n\t\t\t\t\t0:'UNKNOWN',\n\t\t\t\t\t1:'MOVING',\n\t\t\t\t\t2:'UNLOCKED',\n\t\t\t\t\t3:'LOCKED',\n\t\t\t\t\t4:'OPENED',\n\t\t\t\t}[lock_status_id]\n\t\t\t\t@emit 'status_update', lock_status_id, lock_status_string\n\t\t\t\tif (@lock_status_id isnt lock_status_id)\n\t\t\t\t\t@lock_status_id = lock_status_id\n\t\t\t\t\t@emit \"status:#{lock_status_string}\", lock_status_id, lock_status_string\n\t\t\t\t\t@emit 'status_change', lock_status_id, lock_status_string\n\t\t\t\t@set_status_update_timer()\n\t\t\twhen Status_Changed_Notification_Message\n\t\t\t\t@request_status()\n\t\treturn\n\n\tsend_message_fragment: (message_fragment) ->\n\t\t@ensure_connected()\n\t\t.then =>\n\t\t\tsend_promise = @send_characteristic.write(message_fragment.byte_array)\n\t\t\tack_promise = (if (not message_fragment.is_last()) then @await_message('FRAGMENT_ACK') else Promise.resolve())\n\t\t\tPromise.all([send_promise, ack_promise])\n\n\tsend_message_fragments: (message_fragments) ->\n\t\tsend_message_fragment_with_index = (message_fragment_index) =>\n\t\t\tif message_fragment_index < message_fragments.length\n\t\t\t\tmessage_fragment = message_fragments[message_fragment_index]\n\t\t\t\t@send_message_fragment(message_fragment)\n\t\t\t\t.then ->\n\t\t\t\t\tsend_message_fragment_with_index(message_fragment_index + 1)\n\t\t\telse\n\t\t\t\tPromise.resolve()\n\t\tsend_message_fragment_with_index(0)\n\n\tsend_message: (message) ->\n\t\t(if message.is_secure() then @ensure_nonces_exchanged() else @ensure_connected())\n\t\t.then =>\n\t\t\tdebug_communication \"Sending message of type #{message.label}, data bytes <#{byte_array_to_hex_string(message.data_bytes, ' ')}>, data #{JSON.stringify(message.data)}\"\n\t\t\tif message.is_secure()\n\t\t\t\tpadded_data = padded_array(message.data_bytes, generic_ceil(message.data_bytes.length, 15, 8), 0)\n\t\t\t\tcrypt_data(padded_data, message.id, @remote_session_nonce, @local_security_counter, @user_key)\n\t\t\t\tmessage_data_bytes = concatenated_array(\n\t\t\t\t\tcrypt_data(padded_data, message.id, @remote_session_nonce, @local_security_counter, @user_key),\n\t\t\t\t\tinteger_to_byte_array(@local_security_counter, 2),\n\t\t\t\t\tcompute_authentication_value(padded_data, message.id, @remote_session_nonce, @local_security_counter, @user_key),\n\t\t\t\t)\n\t\t\t\t@local_security_counter++\n\t\t\telse\n\t\t\t\tmessage_data_bytes = message.data_bytes\n\t\t\tmessage_fragments = split_into_chunks(concatenated_array([message.id], message_data_bytes), 15).map (fragment_bytes, index, chunks) ->\n\t\t\t\tMessage_Fragment.create(concatenated_array([(chunks.length - 1 - index) + (if (index is 0) then 0x80 else 0x00)], padded_array(fragment_bytes, 15, 0)))\n\t\t\t@send_message_fragments(message_fragments)\n\n\tensure_peripheral: ->\n\t\tif @peripheral then return Promise.resolve(@peripheral)\n\t\tsimble.scan_for_peripheral simble.filter.address(@address)\n\t\t.then (peripheral) =>\n\t\t\tperipheral.ensure_discovered()\n\t\t.then (@peripheral) =>\n\t\t\t@peripheral.set_auto_disconnect_time(@auto_disconnect_time * 1000)\n\t\t\t@peripheral.on 'connected', =>\n\t\t\t\t@state = state.connected\n\t\t\t\t@emit 'connected'\n\t\t\t\treturn\n\t\t\t@peripheral.on 'disconnected', =>\n\t\t\t\t@state = state.disconnected\n\t\t\t\t@emit 'disconnected'\n\t\t\t\treturn\n\t\t\tcommunication_service = @peripheral.get_discovered_service('58e06900-15d8-11e6-b737-0002a5d5c51b')\n\t\t\t@send_characteristic = communication_service.get_discovered_characteristic('3141dd40-15db-11e6-a24b-0002a5d5c51b')\n\t\t\t@receive_characteristic = communication_service.get_discovered_characteristic('359d4820-15db-11e6-82bd-0002a5d5c51b')\n\t\t\t@receive_characteristic.subscribe (message_fragment_bytes) =>\n\t\t\t\t@on_message_fragment_received(Message_Fragment.create(message_fragment_bytes))\n\n\tensure_connected: ->\n\t\t@ensure_peripheral()\n\t\t.then =>\n\t\t\treturn (if (@state >= state.connected) then Promise.resolve() else @peripheral.ensure_discovered())\n\n\tensure_nonces_exchanged: ->\n\t\tif (@state >= state.nonces_exchanged) then return Promise.resolve()\n\t\t@local_session_nonce = create_random_byte_array(8)\n\t\t@send_message Connection_Request_Message.create\n\t\t\tuser_id: @user_id\n\t\t\tlocal_session_nonce: @local_session_nonce\n\t\t.then =>\n\t\t\t@await_message 'CONNECTION_INFO'\n\t\t.then =>\n\t\t\t@state = state.nonces_exchanged\n\t\t\t@emit 'nonces_exchanged'\n\t\t\treturn\n\n\trequest_status: ->\n\t\t@send_message Status_Request_Message.create\n\t\t\tdate: (new Date())\n\t\t.then =>\n\t\t\t@await_event 'status_update'\n\n\tensure_disconnected: ->\n\t\tif (@state < state.connected) then return Promise.resolve()\n\t\t@send_message Close_Connection_Message.create()\n\t\t.then =>\n\t\t\t@peripheral.disconnect()\n\n\tdisconnect: ->\n\t\t@ensure_disconnected()\n\n# The pattern of the data encoded in the QR-Code on the \"Key Card\"s of the eQ-3 eqiva Bluetooth smart locks, as a string\nkey_card_data_pattern = '^M([0-9A-F]{12})K([0-9A-F]{32})([0-9A-Z]{10})$'\n\n# The pattern of the data encoded in the QR-Code on the \"Key Card\"s of the eQ-3 eqiva Bluetooth smart locks, as a regular expression/RegExp\nkey_card_data_regexp = (new RegExp(key_card_data_pattern))\n\n# Convert byte array <byte_array> into several formats/represenations. Returns an array with \"buffer\" (the byte array as a Buffer instance), \"array\" (the original byte array), \"short\" (the byte array as a short hexadecimal string without any non-hexadecimal characters) and \"long\" (the byte array as a long hexadecimal string, where the bytes are separated by string <long_format_separator> (default: ' ')) properties\nbyte_array_formats = (byte_array, long_format_separator) ->\n\tbyte_array = convert_to_byte_array(byte_array)\n\tlong_format_separator = first_valid_value(long_format_separator, ' ')\n\tarray: byte_array\n\tbuffer: Buffer.from(byte_array)\n\tlong: byte_array_to_hex_string(byte_array, long_format_separator)\n\tshort: byte_array_to_hex_string(byte_array, '')\n\n# Parse the data string encoded in the QR-Code of the \"Key Card\"s of the eQ-3 eqiva Bluetooth smart locks. Returns an object with \"address\", \"register_key\" and \"serial\" properties\nparse_key_card_data = (key_card_data_string) ->\n\tmatch = key_card_data_string.trim().match(key_card_data_regexp)\n\tif not match then throw new Error('Not a valid Key Card data string')\n\taddress: byte_array_formats(hex_string_to_byte_array(match[1]), ':').long\n\tregister_key: byte_array_formats(hex_string_to_byte_array(match[2]), ' ').short\n\tserial: match[3]\n\n# Returns a promise that is a time-limited wrapper for promise <promise>. If the promise <promise> does not resolve within <time_limit> milliseconds, the promise is rejected\ntime_limit_promise = (promise, time_limit, timeout_error_message) ->\n\tif (time_limit is 0) then return promise\n\ttimeout_error_message = first_valid_value(timeout_error_message, \"Promise did not resolve within #{time_limit} milliseconds\")\n\tnew Promise (resolve, reject) ->\n\t\ttimeout = setTimeout ->\n\t\t\t\treject(timeout_error_message)\n\t\t\t\treturn\n\t\t\t, time_limit\n\t\tPromise.resolve(promise)\n\t\t.then (promise_result) ->\n\t\t\tclearTimeout(timeout)\n\t\t\tresolve(promise_result)\n\t\t\treturn\n\t\t.catch (promise_error) ->\n\t\t\tclearTimeout(timeout)\n\t\t\treject(promise_error)\n\t\t\treturn\n\t\treturn\n\n# What this module exports\nmodule.exports =\n\tKey_Ble: Key_Ble\n\tkey_card:\n\t\tparse: parse_key_card_data\n\t\tpattern: key_card_data_pattern\n\t\tregexp: key_card_data_regexp\n\tutils:\n\t\ttime_limit: time_limit_promise\n\n"
  ]
}