mirror of
https://github.com/Relintai/smtp_node.git
synced 2024-11-13 17:27:21 +01:00
369 lines
8.6 KiB
GDScript
369 lines
8.6 KiB
GDScript
extends Node
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enum SMTPStatus {
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OK,
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WAITING,
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NO_RESPONSE,
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UNHANDLED_REPONSE
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}
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enum AuthType {
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SMTPS, # SMTPS server, connect, adn immediately just upgrade to use SSL
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STARTTLS, # SMTP + STARTTLS server Connect, then upgrade to SSL using a command before auth
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PLAINTEXT, # No SSL
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}
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export(String) var smtp_server : String = ""
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export(int) var smtp_server_port : int = 465
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export(String) var user : String = ""
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export(String) var password : String = ""
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export(String) var sender_email_address : String = ""
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export(String) var sender_name : String = ""
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# This is sent to the SMTP server at login to id a client, can be anything
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export(String) var smtp_client_address : String = "client.example.com"
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export(int) var max_retries : int = 5
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export(int) var delay_time : int = 250
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export(AuthType) var auth_type : int = 0
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var _socket_original : StreamPeer = null
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var _socket : StreamPeer = null
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var _packet_in : String = ""
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var _packet_out : String = ""
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var _current_status : int = 0
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var _thread : Thread = null
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var _thread_semaphore : Semaphore = Semaphore.new()
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var _thread_running : bool = true
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var _mail_queue : Array = Array()
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var _mail_queue_lock : Mutex = Mutex.new()
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var _auth_login_base64 : String = ""
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var _auth_pass_base64 : String = ""
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func _ready():
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if user != "":
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_auth_login_base64 = Marshalls.raw_to_base64(user.to_ascii())
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if password != "":
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_auth_pass_base64 = Marshalls.raw_to_base64(password.to_ascii())
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func _enter_tree() -> void:
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_thread_running = true
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_thread = Thread.new()
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_thread.start(self, "_thread_main_loop", null)
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func _exit_tree() -> void:
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_thread_running = false
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_thread_semaphore.post()
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_thread.wait_to_finish()
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_thread = null
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func send_mail(address, subject, data):
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_mail_queue_lock.lock()
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_mail_queue.append([address, subject, data])
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_mail_queue_lock.unlock()
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_thread_semaphore.post()
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func _thread_main_loop(user_data):
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while _thread_running:
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_mail_queue_lock.lock()
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if _mail_queue.size() > 0:
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var md = _mail_queue.pop_front()
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_mail_queue_lock.unlock()
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_thread_deliver(md)
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else:
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_mail_queue_lock.unlock()
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if _mail_queue.size() == 0:
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_thread_semaphore.wait()
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func _thread_deliver(user_data):
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var address : String = user_data[0]
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var subject : String = user_data[1]
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var data : String = user_data[2]
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var r_code : int
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r_code = open_socket()
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if r_code == OK:
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r_code = wait_answer()
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# if r_code == OK:
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# emit_signal("SMTP_connected")
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# r_code = send("ciao") # needed because some SMTP servers return error each first command
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if r_code == OK:
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r_code = mail_hello()
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if r_code == OK && auth_type == AuthType.STARTTLS:
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r_code = mail_starttls()
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if r_code == OK:
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r_code = mail_hello()
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if r_code == OK:
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r_code = mail_auth()
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if r_code == OK:
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r_code = mail_from(sender_email_address)
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if r_code == OK:
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r_code = mail_to(address)
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if r_code == OK:
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r_code = mail_data(data, subject)
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if r_code == OK:
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print("process OK")
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if r_code == OK:
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r_code = mail_quit()
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close_socket()
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if r_code == OK:
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display("All done")
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else:
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display("ERROR " + str(r_code))
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return r_code
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func open_socket():
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var error : int
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if _socket == null:
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_socket = StreamPeerTCP.new()
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error = _socket.connect_to_host(smtp_server, smtp_server_port)
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display(["connecting server...", smtp_server,error])
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if error > 0:
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var ip = IP.resolve_hostname(smtp_server)
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error=_socket.connect_to_host(ip, smtp_server_port)
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display(["trying IP ...",ip,error])
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for i in range(1, max_retries):
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print("RETRIES" + str(_socket.get_status()))
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# if _socket.get_status() == _socket.STATUS_ERROR:
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# d.display("Error while requesting connection")
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# break
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# elif _socket.get_status() == _socket.STATUS_CONNECTING:
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# d.display("connecting...")
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# break
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if _socket.get_status() == _socket.STATUS_CONNECTED:
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display("connection up")
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print("CONNECTED")
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break
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OS.delay_msec(delay_time)
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if auth_type == AuthType.SMTPS:
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_socket_original = _socket
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_socket = StreamPeerSSL.new()
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_socket.connect_to_stream(_socket_original, true, smtp_server)
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for i in range(max_retries):
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print("TLS RETRIES" + str(_socket.get_status()))
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if _socket.get_status() == _socket.STATUS_ERROR:
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display("Error while requesting connection")
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return _socket.get_status()
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# elif _socket.get_status() == _socket.STATUS_CONNECTING:
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# d.display("connecting...")
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# break
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if _socket.get_status() == _socket.STATUS_CONNECTED:
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display("TLS connection up")
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print("TLS CONNECTED")
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break
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OS.delay_msec(delay_time)
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return error
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func close_socket():
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if !_socket_original:
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_socket.disconnect_from_host()
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else:
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_socket.disconnect_from_stream()
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_socket_original.disconnect_from_host()
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_socket = null
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_socket_original = null
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func send(data1,data2=null,data3=null):
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return send_only(data1,data2,data3)
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func send_only(data1,data2=null,data3=null):
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var error = 0
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_packet_out = data1
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if data2 != null:
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_packet_out = _packet_out + " " + data2
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if data3 != null:
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_packet_out = _packet_out + " " + data3
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display(["send",_packet_out])
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_packet_out = _packet_out + "\n"
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error=_socket.put_data(_packet_out.to_utf8())
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if error == null:
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error = "NULL"
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display(["send","r_code",error])
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return error
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func wait_answer(succesful=""):
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_current_status= SMTPStatus.WAITING
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display(["waiting response from server..."])
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_packet_in = ""
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OS.delay_msec(delay_time)
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for i in range(max_retries):
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if _socket.has_method(@"poll"):
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_socket.poll()
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var buf_len = _socket.get_available_bytes()
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if buf_len > 0:
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display(["bytes buffered",String(buf_len)])
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_packet_in = _packet_in + _socket.get_utf8_string(buf_len)
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display(["receive",_packet_in])
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break
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else:
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OS.delay_msec(delay_time)
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# This will likely need a rework
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if _packet_in != "":
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_current_status = SMTPStatus.OK
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if parse_packet_in(succesful) != OK:
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_current_status = SMTPStatus.UNHANDLED_REPONSE
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else:
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_current_status = SMTPStatus.NO_RESPONSE
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return _current_status
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func parse_packet_in(strcompare : String):
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if strcompare == "":
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return OK
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var slicecount : int = _packet_in.get_slice_count("\r\n")
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if slicecount <= 1:
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if _packet_in.left(strcompare.length()) == strcompare:
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return OK
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else:
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return FAILED
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else:
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var ll : String = _packet_in.get_slice("\r\n", slicecount - 2)
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if ll.left(strcompare.length()) == strcompare:
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return OK
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else:
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return FAILED
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func mail_hello():
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var r_code : int = send("HELO", smtp_client_address)
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wait_answer()
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r_code= send("EHLO", smtp_client_address)
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r_code= wait_answer("250")
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return r_code
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func mail_starttls():
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var r_code : int = send("STARTTLS")
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r_code = wait_answer("220") #220 TLS go ahead
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if r_code != OK:
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return r_code
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_socket_original = _socket
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_socket = StreamPeerSSL.new()
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_socket.connect_to_stream(_socket_original, true, smtp_server)
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for i in range(max_retries):
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print("STARTTLS RETRIES" + str(_socket.get_status()))
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if _socket.get_status() == _socket.STATUS_ERROR:
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display("Error while requesting connection")
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return _socket.get_status()
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# elif _socket.get_status() == _socket.STATUS_CONNECTING:
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# d.display("connecting...")
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# break
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if _socket.get_status() == _socket.STATUS_CONNECTED:
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display("STARTTLS connection up")
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print("STARTTLS CONNECTED")
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break
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OS.delay_msec(delay_time)
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return r_code
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func mail_auth():
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var r_code : int =send("AUTH LOGIN")
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r_code=wait_answer("334")
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#print("mail_auth() , AUTH LOGIN ", r_code)
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if r_code == OK:
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r_code=send(_auth_login_base64)
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r_code = wait_answer("334")
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#print("mail_auth() , username ", r_code)
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if r_code == OK:
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r_code=send(_auth_pass_base64)
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r_code = wait_answer("235")
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#print("mail_auth() , password ", r_code)
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display(["r_code auth:", r_code])
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return r_code
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func mail_from(data):
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var r_code=send("MAIL FROM:",bracket(data))
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r_code = wait_answer("250")
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return r_code
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func mail_to(data):
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var r_code=send("RCPT TO:",bracket(data))
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r_code = wait_answer("250")
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return r_code
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func mail_data(data=null,subject=null):
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var corpo : String = data
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corpo += "\r\n.\r\n"
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var r_code=send("DATA")
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r_code=wait_answer("354")
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if r_code == OK:
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r_code=send("FROM: ", sender_name + " " + bracket(sender_email_address))
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#r_code =wait_answer("250")
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if r_code == OK and subject != null:
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r_code=send("SUBJECT: ",subject)
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#r_code =wait_answer("250")
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if r_code == OK and data != null:
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r_code=send(corpo)
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#r_code =wait_answer("250")
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r_code = wait_answer("250")
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return r_code
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func mail_quit():
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return send("QUIT")
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func bracket(data):
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return "<"+data+">"
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func _on_Button_pressed() -> void:
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send_mail("", "TEST SUBJECT", "TEST MSG!")
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var debug = true
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func display(data):
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if debug == true:
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print("debug: ",data)
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