added DefaultTemplate for email

spo-iitk · Feb 15, 2024 · b4273d2 · b4273d2
1 parent 5d374b0
commit b4273d2
Show file tree

Hide file tree

Showing 2 changed files with 179 additions and 12 deletions.
diff --git a/mail/service.go b/mail/service.go
@@ -5,7 +5,7 @@ import (
 	"net/smtp"
 	"strings"
 	"time"
-
+	"text/template" 
 	"github.com/sirupsen/logrus"
 )
 
@@ -16,23 +16,39 @@ type Mail struct {
 }
 
 func (mail *Mail) BuildMessage() []byte {
-	message := "MIME-version: 1.0;\nContent-Type: text/html; charset=\"UTF-8\";\r\n"
-	message += fmt.Sprintf("From: Recruitment Automation System IITK<%s>\r\n", sender)
-	message += fmt.Sprintf("Subject: %s | Recruitment Automation System\r\n", mail.Subject)
+
+	type TemplateData struct {
+		To      []string
+		Subject string
+		Body    string
+	}
+
+	var message strings.Builder
+
+	msg := "MIME-version: 1.0;\nContent-Type: text/html; charset=\"UTF-8\";\r\n"
+	msg += fmt.Sprintf("From: Recruitment Automation System IITK<%s>\r\n", sender)
+	msg += fmt.Sprintf("Subject: %s\r\n", mail.Subject)
 
 	// If mass mailing, BCC all the users
 	if len(mail.To) == 1 {
-		message += fmt.Sprintf("To: %s\r\n\r\n", mail.To[0])
+		msg += fmt.Sprintf("To: %s\r\n\r\n", mail.To[0])
 	} else {
-		message += fmt.Sprintf("To: Undisclosed Recipients<%s>\r\n\r\n", webteam)
+		msg += fmt.Sprintf("To: Undisclosed Recipients<%s>\r\n\r\n", webteam)
 	}
 
-	message += strings.Replace(mail.Body, "\n", "<br>", -1)
-	message += "<br><br>--<br>Recruitment Automation System<br>"
-	message += "Indian Institute of Technology Kanpur<br><br>"
-	message += "<small>This is an auto-generated email. Please do not reply.</small>"
+	message.WriteString(msg)
+
+	tmpl := template.Must(template.New("Template").Parse(DefaultTemplate))
+	err := tmpl.Execute(&message, TemplateData{
+		Subject: mail.Subject,
+		Body:    mail.Body,
+	})
+	if err != nil {
+		logrus.Errorf("Error executing email template: %v", err)
+		return nil
+	}
 
-	return []byte(message)
+	return []byte(message.String())
 }
 
 func batchEmails(to []string, batch int) [][]string {
@@ -66,4 +82,4 @@ func Service(mailQueue chan Mail) {
 			time.Sleep(1 * time.Second)
 		}
 	}
-}
+}
diff --git a/mail/templates.go b/mail/templates.go
@@ -0,0 +1,151 @@
+package mail
+
+const (
+	DefaultTemplate = `<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+	<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" />
+	<html dir="ltr" lang="en">
+	  <head></head>
+	  <body style="background-color:#ffffff;margin:0 auto;font-family:-apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif">
+		<table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation" style="max-width:37.5em;margin:0 auto;padding:0px 20px">
+		  <tbody>
+			<tr style="width:100%">
+			  <td>
+				<table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation" style="margin-top:10px">
+				  <tbody>
+					<tr>
+					  <td><img alt="Recruitment Automation System &lt;br /&gt; Indian Institute of Technology, Kanpur" height="75" src="https://i.ibb.co/YDvnbf5/Screenshot-2024-02-13-000009.png" style="display:block;outline:none;border:none;text-decoration:none" width="475" /></td>
+					</tr>
+				  </tbody>
+				</table>
+				<h1 style="color:#1d1c1d;font-size:36px;font-weight:700;margin:30px 0;padding:0;line-height:42px">{{.Subject}}</h1>
+				<p style="font-size:24px;line-height:28px;margin:16px 0;margin-bottom:30px">{{.Body}}<br></br></p>
+				<p style="font-size:16px;line-height:24px;margin:16px 0;color:#000">This is an auto-generated email. Please do not reply.</p>
+				<table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation">
+				  <tbody>
+					<tr>
+					  <td>
+						<table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation" style="margin-bottom:32px;padding-left:8px;padding-right:8px;width:100%">
+						  <tbody style="width:100%">
+							<tr style="width:100%">
+							  <td data-id="__react-email-column" style="width:66%"><img alt="IIT Kanpur" height="48" src="https://upload.wikimedia.org/wikipedia/en/thumb/a/a3/IIT_Kanpur_Logo.svg/1200px-IIT_Kanpur_Logo.svg.png" style="display:block;outline:none;border:none;text-decoration:none" width="48" /></td>
+							  <td data-id="__react-email-column">
+								<table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation">
+								  <tbody>
+									<tr>
+									  <td>
+										<table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation">
+										  <tbody style="width:100%">
+											<tr style="width:100%">
+											  <td data-id="__react-email-column"><a href="https://twitter.com/IITKanpur" style="color:#067df7;text-decoration:none" target="_blank"><img alt="Twitter" height="32" src="https://th.bing.com/th/id/OIP.YGJYM4pqXxVMHzPYfdLumgHaHa?rs=1&amp;pid=ImgDetMain" style="display:inline;outline:none;border:none;text-decoration:none;margin-left:32px" width="32" /></a></td>
+											  <td data-id="__react-email-column"><a href="https://www.facebook.com/spo.iitkanpur/" style="color:#067df7;text-decoration:none" target="_blank"><img alt="Facebook" height="32" src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b8/2021_Facebook_icon.svg/2048px-2021_Facebook_icon.svg.png" style="display:inline;outline:none;border:none;text-decoration:none;margin-left:32px" width="32" /></a></td>
+											  <td data-id="__react-email-column"><a href="https://www.linkedin.com/company/students-placement-office-iit-kanpur/" style="color:#067df7;text-decoration:none" target="_blank"><img alt="LinkedIn" height="32" src="https://static-00.iconduck.com/assets.00/linkedin-icon-1024x1024-net2o24e.png" style="display:inline;outline:none;border:none;text-decoration:none;margin-left:32px" width="32" /></a></td>
+											</tr>
+										  </tbody>
+										</table>
+									  </td>
+									</tr>
+								  </tbody>
+								</table>
+							  </td>
+							</tr>
+						  </tbody>
+						</table>
+					  </td>
+					</tr>
+				  </tbody>
+				</table>
+				<table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation">
+				  <tbody>
+					<tr>
+					  <td><a href="https://spo.iitk.ac.in/" rel="noopener noreferrer" style="color:#b7b7b7;text-decoration:underline" target="_blank">Website</a>   |   <a href="https://placement.iitk.ac.in/" rel="noopener noreferrer" style="color:#b7b7b7;text-decoration:underline" target="_blank">RAS Portal</a>   |   <a href="https://phdplacement.iitk.ac.in/" rel="noopener noreferrer" style="color:#b7b7b7;text-decoration:underline" target="_blank">PhD Portal</a>
+						<p style="font-size:12px;line-height:15px;margin:16px 0;color:#b7b7b7;text-align:left;margin-bottom:50px">©2024 Recruitment Automation System. <br />Students&#x27; Placement Office, IIT Kanpur <br /><br />All rights reserved.</p>
+					  </td>
+					</tr>
+				  </tbody>
+				</table>
+			  </td>
+			</tr>
+		  </tbody>
+		</table>
+	  </body>
+	</html>`	
+
+	// OTPTemplate and RecruitedTemplate are incomplete.
+
+	OTPTemplate = `<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" />
+<html dir="ltr" lang="en">
+<!-- OTP email template content -->
+</html>`
+
+	RecruitedTemplate = `<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+	<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" />
+	<html dir="ltr" lang="en">
+	
+	  <head></head>
+	
+	  <body style="background-color:#ffffff;margin:0 auto;font-family:-apple-system, BlinkMacSystemFont, &#x27;Segoe UI&#x27;, &#x27;Roboto&#x27;, &#x27;Oxygen&#x27;, &#x27;Ubuntu&#x27;, &#x27;Cantarell&#x27;, &#x27;Fira Sans&#x27;, &#x27;Droid Sans&#x27;, &#x27;Helvetica Neue&#x27;, sans-serif">
+		<table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation" style="max-width:37.5em;margin:0 auto;padding:0px 20px">
+		  <tbody>
+			<tr style="width:100%">
+			  <td>
+				<table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation" style="margin-top:10px">
+				  <tbody>
+					<tr>
+					  <td><img alt="Recruitment Automation System &lt;br /&gt; Indian Institute of Technology, Kanpur" height="75" src="https://i.ibb.co/YDvnbf5/Screenshot-2024-02-13-000009.png" style="display:block;outline:none;border:none;text-decoration:none" width="475" /></td>
+					</tr>
+				  </tbody>
+				</table>
+				<h1 style="color:#1d1c1d;font-size:36px;font-weight:700;margin:30px 0;padding:0;line-height:42px">Congratualtions!</h1>
+				<p style="font-size:24px;line-height:28px;margin:16px 0;margin-bottom:30px">You have been recruited for the position of Software Developer at SPO IITK.<br /></p><img alt="IIT Kanpur" height="300" src="https://i.pinimg.com/originals/ee/cc/42/eecc42c92afa81900f655d4328d790c1.gif" style="display:block;outline:none;border:none;text-decoration:none" width="600" />
+				<p style="font-size:18px;line-height:24px;margin:16px 0;color:#000">This is an auto-generated email. Please do not reply.</p>
+				<table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation">
+				  <tbody>
+					<tr>
+					  <td>
+						<table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation" style="margin-bottom:32px;padding-left:8px;padding-right:8px;width:100%">
+						  <tbody style="width:100%">
+							<tr style="width:100%">
+							  <td data-id="__react-email-column" style="width:66%"><img alt="IIT Kanpur" height="48" src="https://upload.wikimedia.org/wikipedia/en/thumb/a/a3/IIT_Kanpur_Logo.svg/1200px-IIT_Kanpur_Logo.svg.png" style="display:block;outline:none;border:none;text-decoration:none" width="48" /></td>
+							  <td data-id="__react-email-column">
+								<table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation">
+								  <tbody>
+									<tr>
+									  <td>
+										<table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation">
+										  <tbody style="width:100%">
+											<tr style="width:100%">
+											  <td data-id="__react-email-column"><a href="https://twitter.com/IITKanpur" style="color:#067df7;text-decoration:none" target="_blank"><img alt="Twitter" height="32" src="https://th.bing.com/th/id/OIP.YGJYM4pqXxVMHzPYfdLumgHaHa?rs=1&amp;pid=ImgDetMain" style="display:inline;outline:none;border:none;text-decoration:none;margin-left:32px" width="32" /></a></td>
+											  <td data-id="__react-email-column"><a href="https://www.facebook.com/spo.iitkanpur/" style="color:#067df7;text-decoration:none" target="_blank"><img alt="Facebook" height="32" src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b8/2021_Facebook_icon.svg/2048px-2021_Facebook_icon.svg.png" style="display:inline;outline:none;border:none;text-decoration:none;margin-left:32px" width="32" /></a></td>
+											  <td data-id="__react-email-column"><a href="https://www.linkedin.com/company/students-placement-office-iit-kanpur/" style="color:#067df7;text-decoration:none" target="_blank"><img alt="LinkedIn" height="32" src="https://static-00.iconduck.com/assets.00/linkedin-icon-1024x1024-net2o24e.png" style="display:inline;outline:none;border:none;text-decoration:none;margin-left:32px" width="32" /></a></td>
+											</tr>
+										  </tbody>
+										</table>
+									  </td>
+									</tr>
+								  </tbody>
+								</table>
+							  </td>
+							</tr>
+						  </tbody>
+						</table>
+					  </td>
+					</tr>
+				  </tbody>
+				</table>
+				<table align="center" width="100%" border="0" cellPadding="0" cellSpacing="0" role="presentation">
+				  <tbody>
+					<tr>
+					  <td><a href="https://spo.iitk.ac.in/" rel="noopener noreferrer" style="color:#b7b7b7;text-decoration:underline" target="_blank">Website</a>   |   <a href="https://placement.iitk.ac.in/" rel="noopener noreferrer" style="color:#b7b7b7;text-decoration:underline" target="_blank">RAS Portal</a>   |   <a href="https://phdplacement.iitk.ac.in/" rel="noopener noreferrer" style="color:#b7b7b7;text-decoration:underline" target="_blank">PhD Portal</a>
+						<p style="font-size:12px;line-height:15px;margin:16px 0;color:#b7b7b7;text-align:left;margin-bottom:50px">©2024 Recruitment Automation System. <br />Students&#x27; Placement Office, IIT Kanpur <br /><br />All rights reserved.</p>
+					  </td>
+					</tr>
+				  </tbody>
+				</table>
+			  </td>
+			</tr>
+		  </tbody>
+		</table>
+	  </body>
+	</html>`
+)