Apply .gitignore rules

.svn/pristine/37/374dfacb825adc910983b41ee6e2df86611ca117.svn-base

@@ -0,0 +1,193 @@
+package mailUtil
+
+import (
+	"bytes"
+	"crypto/tls"
+	"encoding/base64"
+	"fmt"
+	"io/ioutil"
+	"net"
+	"net/mail"
+	"net/smtp"
+	"path/filepath"
+	"strings"
+)
+
+// SMTPClient实现
+type simpleClient struct {
+	host  string
+	port  int
+	isSSL bool
+
+	senderName string
+	senderAddr string
+	senderPwd  string
+}
+
+// 返回一个simpleClient作为SMTPClient接口
+func SimpleSMTPClient(_host string, _port int, _isSSL bool,
+	name, address, password string) SMTPClient {
+
+	return &simpleClient{
+		host:  _host,
+		port:  _port,
+		isSSL: _isSSL,
+
+		senderName: name,
+		senderAddr: address,
+		senderPwd:  password,
+	}
+}
+
+func (this *simpleClient) SetServer(_host string, _port int, _isSSL bool) {
+	this.host = _host
+	this.port = _port
+	this.isSSL = _isSSL
+}
+
+func (this *simpleClient) SetSender(name, address, password string) {
+	this.senderName = name
+	this.senderAddr = address
+	this.senderPwd = password
+}
+
+//发送邮件:
+//  mailTo 接收方列表
+//  subject 主题
+//  body 正文
+//  isHtmlBody 正文是否html格式
+//  attachFiles 附件
+func (this *simpleClient) SendMail(
+	mailTo []string,
+	subject, body string, isHtmlBody bool,
+	attachFiles []string) (err error) {
+
+	defer func() {
+		if r := recover(); r != nil {
+			err = r.(error)
+		}
+	}()
+
+	// 创建连接
+	var conn net.Conn
+
+	if this.isSSL {
+		// TLS config
+		tlsconfig := &tls.Config{
+			InsecureSkipVerify: true,
+			ServerName:         this.host,
+		}
+		conn, err = tls.Dial("tcp", fmt.Sprintf("%s:%d", this.host, this.port), tlsconfig)
+	} else {
+		conn, err = net.Dial("tcp", fmt.Sprintf("%s:%d", this.host, this.port))
+	}
+	if err != nil {
+		return err
+	}
+	defer conn.Close()
+
+	// 创建smtp.Client
+	c, err := smtp.NewClient(conn, this.host)
+	if err != nil {
+		return err
+	}
+
+	// 验证信息
+	auth := smtp.PlainAuth("", this.senderAddr, this.senderPwd, this.host)
+	if err = c.Auth(auth); err != nil {
+		return err
+	}
+
+	// 发送方
+	from := mail.Address{this.senderName, this.senderAddr}
+	// 接收方
+	to := make([]string, 0, len(mailTo))
+	for _, v := range mailTo {
+		to = append(to, "<"+v+">")
+	}
+
+	// To && From
+	if err = c.Mail(from.Address); err != nil {
+		return err
+	}
+
+	for _, v := range mailTo {
+		if err = c.Rcpt(v); err != nil {
+			return err
+		}
+	}
+
+	// 边界
+	boundary := "a40acf3c8b7200fc6b04c2f1b3da"
+
+	buff := bytes.NewBuffer(nil)
+
+	// 写入基本信息
+	buff.WriteString(fmt.Sprintf("From: %s\r\n", from.String()))
+	buff.WriteString(fmt.Sprintf("To: %s\r\n", strings.Join(to, ", ")))
+	buff.WriteString(fmt.Sprintf("Subject: %s\r\n", subject))
+
+	// 写入邮件头部信息
+	if len(attachFiles) > 0 {
+		buff.WriteString(fmt.Sprintf("Content-Type: multipart/mixed; boundary=%s\r\n", boundary))
+
+		// 写入正文的边界信息
+		buff.WriteString(fmt.Sprintf("\r\n--%s\r\n", boundary))
+	}
+
+	// 写入正文头部
+	if isHtmlBody {
+		buff.WriteString(fmt.Sprintf("Content-Type: text/html; charset=\"utf-8\"\r\n"))
+	} else {
+		buff.WriteString(fmt.Sprintf("Content-Type: text/plain; charset=\"utf-8\"\r\n"))
+	}
+	buff.WriteString("\r\n")
+	// 写入正文内容
+	buff.WriteString(body)
+
+	if len(attachFiles) > 0 {
+		for _, file := range attachFiles {
+			fileBytes, err := ioutil.ReadFile(file)
+			if err != nil {
+				return err
+			}
+
+			_, fileName := filepath.Split(file)
+
+			// 写入文件信息
+			buff.WriteString(fmt.Sprintf("\r\n\r\n--%s\r\n", boundary))
+			buff.WriteString("Content-Type: application/octet-stream\r\n")
+			buff.WriteString("Content-Transfer-Encoding: base64\r\n")
+			buff.WriteString(fmt.Sprintf("Content-Disposition: attachment; filename=\"%s\"\r\n\r\n", fileName))
+
+			// 写入文件数据
+			b := make([]byte, base64.StdEncoding.EncodedLen(len(fileBytes)))
+			base64.StdEncoding.Encode(b, fileBytes)
+			buff.Write(b)
+		}
+
+		// 写入结束标识
+		buff.WriteString(fmt.Sprintf("\r\n--%s--", boundary))
+	}
+
+	// Data
+	w, err := c.Data()
+	if err != nil {
+		return err
+	}
+
+	// 写入邮件数据
+	_, err = w.Write(buff.Bytes())
+	if err != nil {
+		return err
+	}
+
+	err = w.Close()
+	if err != nil {
+		return err
+	}
+
+	c.Quit()
+
+	return nil
+}