module net

network access module

Basic module. Can be used to create and operate network resources, reference method:

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var net = require('net');

object

Socket

Create aSocketobject, seeSocket

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Socket net.Socket;

---

Smtp

Create aSmtpobject, seeSmtp

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Smtp net.Smtp;

---

TcpServer

Create aTcpServerobject, seeTcpServer

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TcpServer net.TcpServer;

---

Url

Create aUrlObjectobject, seeUrlObject

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UrlObject net.Url;

static function

info

Query the current operating environment network information

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static Object net.info();

Return results:

• Object, return network card information

---

resolve

Query the address of a given hostname

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static String net.resolve(String name,
    Integer family = AF_INET) async;

Call parameters:

• name: String, specify the host name
• family: Integer, specifies the query return type, the default is AF_INET

Return results:

• String, returns the queried IP string

---

ip

Host address for quick query, equivalent to resolve(name)

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static String net.ip(String name) async;

Call parameters:

• name: String, specify the host name

Return results:

• String, returns the queried IP string

---

ipv6

Quickly query the host ipv6 address, equivalent to resolve(name,net.AF_INET6)

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static String net.ipv6(String name) async;

Call parameters:

• name: String, specify the host name

Return results:

• String, returns the queried ipv6 string

---

connect

Create aSocketorSslSocketobject and establish connection

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static Stream net.connect(String url,
    Integer timeout = 0) async;

Call parameters:

• url: String, specifies the connection protocol, which can be: tcp://host:port orssl://host:port, it can also be: unix:/usr/local/proc1 or pipe://./pipe/proc1, it needs to be /replaced when connecting to the pipe\
• timeout: Integer, specifies the timeout, the unit is milliseconds, the default is 0

Return results:

• Stream, returns successful connectionSocketorSslSocketobject

---

openSmtp

Create aSmtpobject and establish a connection, seeSmtp

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static Smtp net.openSmtp(String url,
    Integer timeout = 0) async;

Call parameters:

• url: String, specifies the connection protocol, which can be: tcp://host:port orssl://host:port
• timeout: Integer, specifies the timeout, the unit is milliseconds, the default is 0

Return results:

• Smtp, returns successful connectionSmtpobject

---

backend

Query the current system asynchronous network engine

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static String net.backend();

Return results:

• String, returns the network engine name

---

isIP

Check if the input is an IP address

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static Integer net.isIP(String ip = "");

Call parameters:

• ip: String, specifies the string to be detected

Return results:

• Integer, illegal IP address, returns 0, if it is IPv4, returns 4, if it is IPv6, returns 6

---

isIPv4

Check if the input is an IPv4 address

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static Boolean net.isIPv4(String ip = "");

Call parameters:

• ip: String, specifies the string to be detected

Return results:

• Boolean, if it is IPv4, return true. Otherwise, return false.

---

isIPv6

Check if the input is an IPv6 address

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static Boolean net.isIPv6(String ip = "");

Call parameters:

• ip: String, specifies the string to be detected

Return results:

• Boolean, if it is IPv6, return true. Otherwise, return false

static properties

use_uv_socket

Boolean, query and set whether the socket backend uses uv, the default is false

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static Boolean net.use_uv_socket;

constant

AF_UNIX

Address set constant, specifying unix socket

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const net.AF_UNIX = 1;

---

AF_PIPE

Address set constant, specify Windows pipe

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const net.AF_PIPE = 1;

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AF_INET

Address set constant, specify ipv4

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const net.AF_INET = 2;

---

AF_INET6

Address set constant, specify ipv6

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const net.AF_INET6 = 10;