mailgun-rest

server/email/email.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"context"
 	"crypto/tls"
+	"os"
 	"strconv"
 	"strings"
 	"text/template"
@@ -95,6 +96,15 @@ func SendEmail(to []string, event string, data map[string]interface{}) error {
 		return err
 	}
 
+	mailgunAPIKey := os.Getenv("MAILGUN_API_KEY")
+
+	if len(mailgunAPIKey) > 0 {
+		err = SendMailgun(to, event, data)
+		if err != nil {
+			return err
+		}
+	}
+
 	m := gomail.NewMessage()
 	senderEmail, err := memorystore.Provider.GetStringStoreEnvVariable(constants.EnvKeySenderEmail)
 	if err != nil {

server/email/mailgun.go

@@ -0,0 +1,96 @@
+package email
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"os"
+
+	// log "github.com/sirupsen/logrus"
+
+	"github.com/authorizerdev/authorizer/server/constants"
+)
+
+const apiURL = "https://api.mailgun.net/v3/%s/messages"
+
+func mailgun_send(to []string, data map[string]interface{}, subject string, template string) error {
+	var mailgunAPIKey = os.Getenv("MAILGUN_API_KEY")
+	var mailgunDomain = os.Getenv("MAILGUN_DOMAIN")
+
+	// Create custom variables JSON
+	customVariablesJSON, err := json.Marshal(data)
+	if err != nil {
+		return err
+	}
+
+	// Create payload
+	payload := map[string]interface{}{
+		"from":                  mailgunDomain + " <noreply@" + mailgunDomain + ">",
+		"to":                    to,
+		"subject":               subject,
+		"template":              template,
+		"h:X-Mailgun-Variables": string(customVariablesJSON),
+	}
+
+	// Convert payload to JSON
+	payloadJSON, err := json.Marshal(payload)
+	if err != nil {
+		return err
+	}
+
+	// Make HTTP POST request
+	client := &http.Client{}
+	req, err := http.NewRequest("POST", fmt.Sprintf(apiURL, mailgunDomain), bytes.NewBuffer(payloadJSON))
+	if err != nil {
+		return err
+	}
+
+	req.SetBasicAuth("api", mailgunAPIKey)
+	req.Header.Set("Content-Type", "application/json")
+
+	resp, err := client.Do(req)
+	if err != nil {
+		return err
+	}
+
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return fmt.Errorf("failed to send email, status code: %d", resp.StatusCode)
+	}
+
+	return nil
+}
+
+// SendMailgun function to send
+func SendMailgun(to []string, event string, data map[string]interface{}) error {
+	template := "email_confirmation"
+
+	switch event {
+	case constants.VerificationTypeBasicAuthSignup:
+		template = "email_confirmation"
+	case constants.VerificationTypeForgotPassword:
+		template = "reset_password"
+	case constants.VerificationTypeInviteMember:
+		template = "author_invited"
+	case constants.VerificationTypeMagicLinkLogin:
+		template = "magic_link_login"
+	case constants.VerificationTypeOTP:
+		template = "one_time_password"
+	case constants.VerificationTypeUpdateEmail:
+		template = "email_update"
+	}
+
+	subject := "Подтверждение почты"
+
+	// TODO: language selection logic here
+
+	err := mailgun_send(to, data, subject, template)
+
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

server/go.mod

@@ -56,6 +56,7 @@ require (
 	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
 	github.com/glebarez/go-sqlite v1.21.2 // indirect
+	github.com/go-chi/chi/v5 v5.0.8 // indirect
 	github.com/go-jose/go-jose/v3 v3.0.0 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect

server/go.sum

@@ -81,6 +81,9 @@ github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkp
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
 github.com/ekristen/gorm-libsql v0.0.0-20231101204708-6e113112bcc2 h1:3f6DAUkYKbZSJ1bBM0/RiX5NHVt7YgmB0BWzKWUd45g=
 github.com/ekristen/gorm-libsql v0.0.0-20231101204708-6e113112bcc2/go.mod h1:5g9wSYpR/MvkR6W7SumX9zdha7Yt1iM4nxOAWfRfcPA=
+github.com/facebookgo/ensure v0.0.0-20160127193407-b4ab57deab51/go.mod h1:Yg+htXGokKKdzcwhuNDwVvN+uBxDGXJ7G/VN1d8fa64=
+github.com/facebookgo/stack v0.0.0-20160209184415-751773369052/go.mod h1:UbMTZqLaRiH3MsBH8va0n7s1pQYcu3uTb8G4tygF4Zg=
+github.com/facebookgo/subset v0.0.0-20150612182917-8dac2c3c4870/go.mod h1:5tD+neXqOorC30/tWg0LCSkrqj/AR6gu8yY8/fpw1q0=
 github.com/gabriel-vasile/mimetype v1.4.2 h1:w5qFW6JKBz9Y393Y4q372O9A7cUSequkh1Q7OhCmWKU=
 github.com/gabriel-vasile/mimetype v1.4.2/go.mod h1:zApsH/mKG4w07erKIaJPFiX0Tsq9BFQgN3qGY5GnNgA=
 github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
@@ -92,6 +95,8 @@ github.com/glebarez/go-sqlite v1.21.2 h1:3a6LFC4sKahUunAmynQKLZceZCOzUthkRkEAl9g
 github.com/glebarez/go-sqlite v1.21.2/go.mod h1:sfxdZyhQjTM2Wry3gVYWaW072Ri1WMdWJi0k6+3382k=
 github.com/glebarez/sqlite v1.10.0 h1:u4gt8y7OND/cCei/NMHmfbLxF6xP2wgKcT/BJf2pYkc=
 github.com/glebarez/sqlite v1.10.0/go.mod h1:IJ+lfSOmiekhQsFTJRx/lHtGYmCdtAiTaf5wI9u5uHA=
+github.com/go-chi/chi/v5 v5.0.8 h1:lD+NLqFcAi1ovnVZpsnObHGW4xb4J8lNmoYVfECH1Y0=
+github.com/go-chi/chi/v5 v5.0.8/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
 github.com/go-jose/go-jose/v3 v3.0.0 h1:s6rrhirfEP/CGIoc6p+PZAeogN2SxKav6Wp7+dyMWVo=
 github.com/go-jose/go-jose/v3 v3.0.0/go.mod h1:RNkWWRld676jZEYoV3+XK8L2ZnNSvIsxFMht0mSX+u8=
 github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
@@ -190,6 +195,7 @@ github.com/jmespath/go-jmespath/internal/testify v1.5.1/go.mod h1:L3OGu8Wl2/fWfC
 github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
 github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
+github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
 github.com/klauspost/compress v1.10.3/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYsUV+/s2qKfXs=
@@ -217,6 +223,8 @@ github.com/libsql/sqlite-antlr4-parser v0.0.0-20230802215326-5cb5bb604475 h1:6Pf
 github.com/libsql/sqlite-antlr4-parser v0.0.0-20230802215326-5cb5bb604475/go.mod h1:20nXSmcf0nAscrzqsXeC2/tA3KkV2eCiJqYuyAgl+ss=
 github.com/localtunnel/go-localtunnel v0.0.0-20170326223115-8a804488f275 h1:IZycmTpoUtQK3PD60UYBwjaCUHUP7cML494ao9/O8+Q=
 github.com/localtunnel/go-localtunnel v0.0.0-20170326223115-8a804488f275/go.mod h1:zt6UU74K6Z6oMOYJbJzYpYucqdcQwSMPBEdSvGiaUMw=
+github.com/mailgun/mailgun-go/v4 v4.12.0 h1:TtuQCgqSp4cB6swPxP5VF/u4JeeBIAjTdpuQ+4Usd/w=
+github.com/mailgun/mailgun-go/v4 v4.12.0/go.mod h1:L9s941Lgk7iB3TgywTPz074pK2Ekkg4kgbnAaAyJ2z8=
 github.com/maruel/rs v1.1.0 h1:dh4OceAF5yD06EASOrb+DS358LI4g0B90YApSdjCP6U=
 github.com/maruel/rs v1.1.0/go.mod h1:vzwMjzSJJxLIXmU62qHj6O5QRn5kvCKxFrfaFCxBcUY=
 github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
@@ -243,6 +251,7 @@ github.com/pelletier/go-toml/v2 v2.0.8 h1:0ctb6s9mE31h0/lhu+J6OPmVeDxJn+kYnJc2jZ
 github.com/pelletier/go-toml/v2 v2.0.8/go.mod h1:vuYfssBdrU2XDZ9bYydBu6t+6a6PYNcZljzZR9VXg+4=
 github.com/pkg/browser v0.0.0-20210911075715-681adbf594b8 h1:KoWmjvw+nsYOo29YJK9vDA65RGE3NrOnUtO7a+RF9HU=
 github.com/pkg/browser v0.0.0-20210911075715-681adbf594b8/go.mod h1:HKlIX3XHQyzLZPlr7++PzdhaXEj94dEiJgZDTsxEqUI=
+github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=