154 lines
3.8 KiB
Go
154 lines
3.8 KiB
Go
package main
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import (
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/aws/awserr"
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"github.com/aws/aws-sdk-go/aws/credentials"
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"github.com/aws/aws-sdk-go/aws/session"
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"github.com/aws/aws-sdk-go/service/ses"
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log "github.com/sirupsen/logrus"
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"os"
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"strconv"
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"strings"
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)
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func send_balance_email(recipient_email string, card_id int) {
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c, err := db_get_card_from_card_id(card_id)
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if err != nil {
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log.Warn(err.Error())
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return
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}
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card_total_sats, err := db_get_card_total_sats(card_id)
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if err != nil {
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log.Warn(err.Error())
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return
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}
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email_max_txs, err := strconv.Atoi(db_get_setting("EMAIL_MAX_TXS"))
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if err != nil {
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log.Warn(err.Error())
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return
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}
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txs, err := db_get_card_txs(card_id, email_max_txs+1)
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if err != nil {
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log.Warn(err.Error())
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return
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}
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subject := c.card_name + " balance = " + strconv.Itoa(card_total_sats) + " sats"
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// add transactions to the email body
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var html_body_sb strings.Builder
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var text_body_sb strings.Builder
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html_body_sb.WriteString("<!DOCTYPE html><html><head><style> table, " +
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"th, td { border: 1px solid black; border-collapse: collapse; } " +
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"</style></head><body>")
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html_body_sb.WriteString("<h3>transactions</h3><table><tr><th>date</th><th>action</th><th>amount</th>")
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text_body_sb.WriteString("transactions\n\n")
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for i, tx := range txs {
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if i < email_max_txs {
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html_body_sb.WriteString(
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"<tr>" +
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"<td>" + tx.tx_time + "</td>" +
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"<td>" + tx.tx_type + "</td>" +
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"<td style='text-align:right'>" + strconv.Itoa(tx.tx_amount_msats/1000) + "</td>" +
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"</tr>")
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} else {
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html_body_sb.WriteString(
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"<tr>" +
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"<td style='text-align:center'> ... </td>" +
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"<td style='text-align:center'> ... </td>" +
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"<td style='text-align:center'> ... </td>" +
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"</tr>")
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}
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text_body_sb.WriteString(tx.tx_type +
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" " + strconv.Itoa(tx.tx_amount_msats/1000))
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}
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html_body_sb.WriteString("</table></body></html>")
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html_body := html_body_sb.String()
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text_body := text_body_sb.String()
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send_email(recipient_email,
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subject,
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html_body,
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text_body)
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}
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// https://docs.aws.amazon.com/sdk-for-go/v1/developer-guide/ses-example-send-email.html
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func send_email(recipient string, subject string, htmlBody string, textBody string) {
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aws_ses_id := db_get_setting("AWS_SES_ID")
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aws_ses_secret := db_get_setting("AWS_SES_SECRET")
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sender := db_get_setting("AWS_SES_EMAIL_FROM")
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sess, err := session.NewSession(&aws.Config{
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Region: aws.String("us-east-1"),
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Credentials: credentials.NewStaticCredentials(aws_ses_id, aws_ses_secret, ""),
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})
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svc := ses.New(sess)
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charSet := "UTF-8"
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input := &ses.SendEmailInput{
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Destination: &ses.Destination{
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CcAddresses: []*string{},
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ToAddresses: []*string{
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aws.String(recipient),
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},
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},
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Message: &ses.Message{
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Body: &ses.Body{
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Html: &ses.Content{
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Charset: aws.String(charSet),
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Data: aws.String(htmlBody),
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},
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Text: &ses.Content{
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Charset: aws.String(charSet),
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Data: aws.String(textBody),
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},
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},
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Subject: &ses.Content{
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Charset: aws.String(charSet),
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Data: aws.String(subject),
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},
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},
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Source: aws.String(sender),
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//ConfigurationSetName: aws.String(ConfigurationSet),
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}
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result, err := svc.SendEmail(input)
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if err != nil {
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if aerr, ok := err.(awserr.Error); ok {
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switch aerr.Code() {
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case ses.ErrCodeMessageRejected:
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log.Warn(ses.ErrCodeMessageRejected, aerr.Error())
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case ses.ErrCodeMailFromDomainNotVerifiedException:
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log.Warn(ses.ErrCodeMailFromDomainNotVerifiedException, aerr.Error())
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case ses.ErrCodeConfigurationSetDoesNotExistException:
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log.Warn(ses.ErrCodeConfigurationSetDoesNotExistException, aerr.Error())
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default:
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log.Warn(aerr.Error())
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}
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} else {
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log.Warn(err.Error())
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}
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return
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}
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log.WithFields(log.Fields{"result": result}).Info("email sent")
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}
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