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Use email template
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Signed-off-by: Radoslav Dimitrov <[email protected]>
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@rdimitrov
rdimitrov committed Jun 28, 2024
1 parent 08537d5 commit cc0a318
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Showing 2 changed files with 349 additions and 9 deletions.
67 changes: 58 additions & 9 deletions internal/email/email.go
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Original file line number Diff line number Diff line change
Expand Up @@ -19,8 +19,10 @@ import (
"context"
"encoding/json"
"fmt"
"strings"

"github.com/ThreeDotsLabs/watermill/message"
"github.com/docker/cli/templates"
"github.com/google/uuid"

"github.com/stacklok/minder/internal/events"
Expand Down Expand Up @@ -64,24 +66,18 @@ func (m *MailEventHandler) Register(reg events.Registrar) {

// handlerInviteEmail handles the invite email event
func (m *MailEventHandler) handlerInviteEmail(msg *message.Message) error {
var event MailEventPayload
var e MailEventPayload

// Get the message context
msgCtx := msg.Context()

// Unmarshal the message payload
if err := json.Unmarshal(msg.Payload, &event); err != nil {
if err := json.Unmarshal(msg.Payload, &e); err != nil {
return fmt.Errorf("error unmarshalling invite email event: %w", err)
}
// Create the email subject and body
// TODO: Use templates here
subject := fmt.Sprintf("You have been invited to join %s", event.ProjectDisplay)
bodyText := fmt.Sprintf("You have been invited to join %s as a %s by %s. Use code %s to accept the invitation.",
event.ProjectDisplay, event.Role, event.SponsorDisplay, event.Code)
bodyHtml := fmt.Sprintf("<p>%s</p>", bodyText)

// Send the email
return m.client.SendEmail(msgCtx, event.Email, subject, bodyHtml, bodyText)
return m.client.SendEmail(msgCtx, e.Email, e.getEmailSubject(), e.getEmailBodyHTML(), e.getEmailBodyText())
}

// NewMessage creates a new message for sending an invitation email
Expand All @@ -105,3 +101,56 @@ func NewMessage(inviteeEmail, code, role, projectDisplay, sponsorDisplay string)
// Create the message
return message.NewMessage(id.String(), payload), nil
}

// getBodyHTML returns the HTML body for the email based on the message payload
func (e *MailEventPayload) getEmailBodyHTML() string {
data := struct {
AdminName string
OrganizationName string
InvitationURL string
RecipientEmail string
MinderURL string
TermsURL string
PrivacyURL string
SignInURL string
RoleName string
}{
AdminName: e.SponsorDisplay,
OrganizationName: e.ProjectDisplay,
// TODO: Determine the correct environment for the invite URL and the rest of the URLs
InvitationURL: fmt.Sprintf("https://cloud.minder.com/join/%s", e.Code),
RecipientEmail: e.Email,
MinderURL: "https://cloud.minder.com",
TermsURL: "https://cloud.minder.com/terms",
PrivacyURL: "https://cloud.minder.com/privacy",
SignInURL: "https://cloud.minder.com",
RoleName: e.Role,
}

// TODO: Load the email template from elsewhere

// Parse the template
tmpl, err := templates.Parse(bodyHTML)
if err != nil {
// TODO: Log the error
// Default to the text body
return e.getEmailBodyText()
}
// Execute the template
var b strings.Builder
if err := tmpl.Execute(&b, data); err != nil {
return ""
}
return b.String()
}

// getEmailBodyText returns the text body for the email based on the message payload
func (e *MailEventPayload) getEmailBodyText() string {
return fmt.Sprintf("You have been invited to join %s as a %s by %s. Use code %s to accept the invitation.",
e.ProjectDisplay, e.Role, e.SponsorDisplay, e.Code)
}

// getEmailSubject returns the subject for the email based on the message payload
func (e *MailEventPayload) getEmailSubject() string {
return fmt.Sprintf("You have been invited to join the %s organisation in Minder", e.ProjectDisplay)
}
291 changes: 291 additions & 0 deletions internal/email/template.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,291 @@
// Copyright 2024 Stacklok, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package email

//nolint:lll
const (
// bodyHTML is the HTML body of the email
bodyHTML = `
<div
style="
background-color: #f2f4f7;
color: #262626;
font-family: 'Helvetica Neue', 'Arial Nova', 'Nimbus Sans', Arial,
sans-serif;
font-size: 16px;
font-weight: 400;
letter-spacing: 0.15008px;
line-height: 1.5;
margin: 0;
padding: 32px 0;
min-height: 100%;
width: 100%;
"
>
<table
align="center"
width="100%"
style="margin: 0 auto; max-width: 600px; background-color: #ffffff"
cellspacing="0"
cellpadding="0"
border="0"
>
<tbody>
<tr style="width: 100%">
<td>
<div
style="
padding: 20px 24px 20px 24px;
background-color: #f2f4f7;
text-align: center;
"
>
<img
alt="Minder by Stacklok"
src="https://stacklok-statamic-1.nyc3.digitaloceanspaces.com/email_minder_logo.png"
width="134"
height="32"
style="
width: 134px;
height: 32px;
outline: none;
border: none;
text-decoration: none;
vertical-align: middle;
max-width: 100%;
"
/>
</div>
<div
style="
background-color: #ffffff;
border-radius: 0;
padding: 16px 32px 16px 32px;
"
>
<div
style="
color: #475467;
font-size: 14px;
font-weight: normal;
padding: 24px 0px 24px 0px;
"
>
<p>
<strong>{{.AdminName}}</strong> has invited you to become <strong>{{.RoleName}}</strong> in
the <strong>{{.OrganizationName}}</strong> organization in Minder.
</p>
</div>
<div style="text-align: center; padding: 16px 24px 16px 24px">
<table align="center">
<tr>
<td align="center">
<div>
<!--[if mso]>
<v:rect xmlns:v="urn:schemas-microsoft-com:vml" xmlns:w="urn:schemas-microsoft-com:office:word" href="{{.InvitationURL}}" style="height:36px;v-text-anchor:middle;width:110px;" stroke="f" fillcolor="#803eff">
<w:anchorlock/>
<center>
<![endif]-->
<a
href="{{.InvitationURL}}"
target="_blank"
style="
background-color: #803eff;
color: #ffffff;
display: block;
font-family: Helvetica, Arial, sans-serif;
font-size: 12px;
line-height: 36px;
height: 36px;
text-align: center;
font-weight: bold;
text-decoration: none;
width: 110px;
border-radius: 8px;
-webkit-text-size-adjust: none;
"
>View Invitation</a
>
<!--[if mso]>
</center>
</v:rect>
<![endif]-->
</div>
</td>
</tr>
</table>
</div>
<div
style="
color: #475467;
font-size: 14px;
font-weight: normal;
padding: 24px 0px 24px 0px;
"
>
Once you accept, you’ll be able to view the {{.OrganizationName}}
organization, and its security posture, in Minder.
</div>
<div
style="
color: #475467;
font-size: 12px;
font-weight: normal;
padding: 24px 0px 24px 0px;
"
>
<p>
This invitation was sent to
<strong>{{.RecipientEmail}}</strong>. If you were not
expecting it, you can ignore this email.
</p>
</div>
<div style="padding: 12px 0px 12px 0px">
<hr
style="
width: 100%;
border: none;
border-top: 1px solid #eaecf0;
margin: 0;
"
/>
</div>
<div
style="
color: #475467;
font-size: 12px;
font-weight: normal;
padding: 16px 0px 16px 0px;
"
>
<p>
<a href="{{.MinderURL}}" style="color: #6941c6">Minder</a>
by Stacklok is an open source platform that helps development
teams and open source communities build more secure software,
and prove to others that what they’ve built is secure.
</p>
</div>
<div style="padding: 16px 24px 16px 24px">
<table
align="center"
width="100%"
cellpadding="0"
border="0"
style="border-collapse: collapse"
>
<tbody style="width: 100%">
<tr style="width: 100%">
<td
style="
box-sizing: content-box;
vertical-align: middle;
padding-left: 0;
padding-right: 10.666666666666666px;
"
>
<div
style="
font-size: 12px;
font-weight: normal;
text-align: right;
padding: 0px 0px 0px 0px;
"
>
<p>
<a href="{{.TermsURL}}" style="color: #475467"
>Terms and Conditions</a
>
</p>
</div>
</td>
<td
style="
box-sizing: content-box;
vertical-align: middle;
padding-left: 5.333333333333333px;
padding-right: 5.333333333333333px;
width: 70px;
"
>
<div
style="
font-size: 12px;
font-weight: normal;
text-align: center;
padding: 0px 16px 0px 16px;
"
>
<p>
<a href="{{.PrivacyURL}}" style="color: #475467"
>Privacy</a
>
</p>
</div>
</td>
<td
style="
box-sizing: content-box;
vertical-align: middle;
padding-left: 10.666666666666666px;
padding-right: 0;
"
>
<div
style="
font-size: 12px;
font-weight: normal;
padding: 0px 0px 0px 0px;
"
>
<p>
<a href="{{.SignInURL}}" style="color: #475467"
>Sign in to Minder</a
>
</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div
style="
padding: 28px 24px 40px 24px;
background-color: #f2f4f7;
text-align: center;
"
>
<img
alt="Stacklok"
src="https://stacklok-statamic-1.nyc3.digitaloceanspaces.com/email_stacklok_logo.png"
height="20"
style="
height: 20px;
outline: none;
border: none;
text-decoration: none;
vertical-align: middle;
max-width: 100%;
"
/>
</div>
</td>
</tr>
</tbody>
</table>
</div>
`
)

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