feat: can specify content type and http body field mapping for Custom HTTP Email provider (#3730)

email/custom_http.go

@@ -15,6 +15,8 @@
 package email
 
 import (
+	"bytes"
+	"encoding/json"
 	"fmt"
 	"net/http"
 	"net/url"
@@ -27,13 +29,21 @@ type HttpEmailProvider struct {
 	endpoint    string
 	method      string
 	httpHeaders map[string]string
+	bodyMapping map[string]string
+	contentType string
 }
 
-func NewHttpEmailProvider(endpoint string, method string, httpHeaders map[string]string) *HttpEmailProvider {
+func NewHttpEmailProvider(endpoint string, method string, httpHeaders map[string]string, bodyMapping map[string]string, contentType string) *HttpEmailProvider {
+	if contentType == "" {
+		contentType = "application/x-www-form-urlencoded"
+	}
+
 	client := &HttpEmailProvider{
 		endpoint:    endpoint,
 		method:      method,
 		httpHeaders: httpHeaders,
+		bodyMapping: bodyMapping,
+		contentType: contentType,
 	}
 	return client
 }
@@ -41,18 +51,52 @@ func NewHttpEmailProvider(endpoint string, method string, httpHeaders map[string
 func (c *HttpEmailProvider) Send(fromAddress string, fromName string, toAddress string, subject string, content string) error {
 	var req *http.Request
 	var err error
+
+	fromNameField := "fromName"
+	toAddressField := "toAddress"
+	subjectField := "subject"
+	contentField := "content"
+
+	for k, v := range c.bodyMapping {
+		switch k {
+		case "fromName":
+			fromNameField = v
+		case "toAddress":
+			toAddressField = v
+		case "subject":
+			subjectField = v
+		case "content":
+			contentField = v
+		}
+	}
+
 	if c.method == "POST" || c.method == "PUT" || c.method == "DELETE" {
+		bodyMap := make(map[string]string)
+		bodyMap[fromNameField] = fromName
+		bodyMap[toAddressField] = toAddress
+		bodyMap[subjectField] = subject
+		bodyMap[contentField] = content
+
+		var fromValueBytes []byte
+		if c.contentType == "application/json" {
+			fromValueBytes, err = json.Marshal(bodyMap)
+			if err != nil {
+				return err
+			}
+			req, err = http.NewRequest(c.method, c.endpoint, bytes.NewBuffer(fromValueBytes))
+		} else {
 			formValues := url.Values{}
-		formValues.Set("fromName", fromName)
+			for k, v := range bodyMap {
-		formValues.Set("toAddress", toAddress)
+				formValues.Add(k, v)
-		formValues.Set("subject", subject)
+			}
-		formValues.Set("content", content)
 			req, err = http.NewRequest(c.method, c.endpoint, strings.NewReader(formValues.Encode()))
+		}
+
 		if err != nil {
 			return err
 		}
 
-		req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+		req.Header.Set("Content-Type", c.contentType)
 	} else if c.method == "GET" {
 		req, err = http.NewRequest(c.method, c.endpoint, nil)
 		if err != nil {
@@ -60,10 +104,10 @@ func (c *HttpEmailProvider) Send(fromAddress string, fromName string, toAddress
 		}
 
 		q := req.URL.Query()
-		q.Add("fromName", fromName)
+		q.Add(fromNameField, fromName)
-		q.Add("toAddress", toAddress)
+		q.Add(toAddressField, toAddress)
-		q.Add("subject", subject)
+		q.Add(subjectField, subject)
-		q.Add("content", content)
+		q.Add(contentField, content)
 		req.URL.RawQuery = q.Encode()
 	} else {
 		return fmt.Errorf("HttpEmailProvider's Send() error, unsupported method: %s", c.method)

email/provider.go

@@ -18,11 +18,11 @@ type EmailProvider interface {
 	Send(fromAddress string, fromName, toAddress string, subject string, content string) error
 }
 
-func GetEmailProvider(typ string, clientId string, clientSecret string, host string, port int, disableSsl bool, endpoint string, method string, httpHeaders map[string]string) EmailProvider {
+func GetEmailProvider(typ string, clientId string, clientSecret string, host string, port int, disableSsl bool, endpoint string, method string, httpHeaders map[string]string, bodyMapping map[string]string, contentType string) EmailProvider {
 	if typ == "Azure ACS" {
 		return NewAzureACSEmailProvider(clientSecret, host)
 	} else if typ == "Custom HTTP Email" {
-		return NewHttpEmailProvider(endpoint, method, httpHeaders)
+		return NewHttpEmailProvider(endpoint, method, httpHeaders, bodyMapping, contentType)
 	} else if typ == "SendGrid" {
 		return NewSendgridEmailProvider(clientSecret, host, endpoint)
 	} else {

object/email.go

@@ -31,7 +31,7 @@ func TestSmtpServer(provider *Provider) error {
 }
 
 func SendEmail(provider *Provider, title string, content string, dest string, sender string) error {
-	emailProvider := email.GetEmailProvider(provider.Type, provider.ClientId, provider.ClientSecret, provider.Host, provider.Port, provider.DisableSsl, provider.Endpoint, provider.Method, provider.HttpHeaders)
+	emailProvider := email.GetEmailProvider(provider.Type, provider.ClientId, provider.ClientSecret, provider.Host, provider.Port, provider.DisableSsl, provider.Endpoint, provider.Method, provider.HttpHeaders, provider.UserMapping, provider.IssuerUrl)
 
 	fromAddress := provider.ClientId2
 	if fromAddress == "" {

web/src/ProviderEditPage.js

@@ -42,6 +42,13 @@ const defaultUserMapping = {
   avatarUrl: "avatarUrl",
 };
 
+const defaultEmailMapping = {
+  fromName: "fromName",
+  toAddress: "toAddress",
+  subject: "subject",
+  content: "content",
+};
+
 class ProviderEditPage extends React.Component {
   constructor(props) {
     super(props);
@@ -72,7 +79,16 @@ class ProviderEditPage extends React.Component {
 
         if (res.status === "ok") {
           const provider = res.data;
+          if (provider.type === "Custom HTTP Email") {
+            if (!provider.userMapping) {
+              provider.userMapping = provider.userMapping || defaultEmailMapping;
+            }
+            if (!provider.userMapping?.fromName) {
+              provider.userMapping = defaultEmailMapping;
+            }
+          } else {
             provider.userMapping = provider.userMapping || defaultUserMapping;
+          }
           this.setState({
             provider: provider,
           });
@@ -146,10 +162,17 @@ class ProviderEditPage extends React.Component {
     const requiredKeys = ["id", "username", "displayName"];
     const provider = this.state.provider;
 
+    if (provider.type === "Custom HTTP Email") {
+      if (value === "") {
+        Setting.showMessage("error", i18next.t("provider:This field is required"));
+        return;
+      }
+    } else {
       if (value === "" && requiredKeys.includes(key)) {
         Setting.showMessage("error", i18next.t("provider:This field is required"));
         return;
       }
+    }
 
     provider.userMapping[key] = value;
 
@@ -184,6 +207,30 @@ class ProviderEditPage extends React.Component {
       </React.Fragment>
     );
   }
+
+  renderEmailMappingInput() {
+    return (
+      <React.Fragment>
+        {Setting.getLabel(i18next.t("provider:From name"), i18next.t("provider:From name - Tooltip"))} :
+        <Input value={this.state.provider.userMapping.fromName} onChange={e => {
+          this.updateUserMappingField("fromName", e.target.value);
+        }} />
+        {Setting.getLabel(i18next.t("provider:From address"), i18next.t("provider:From address - Tooltip"))} :
+        <Input value={this.state.provider.userMapping.toAddress} onChange={e => {
+          this.updateUserMappingField("toAddress", e.target.value);
+        }} />
+        {Setting.getLabel(i18next.t("provider:Subject"), i18next.t("provider:Subject - Tooltip"))} :
+        <Input value={this.state.provider.userMapping.subject} onChange={e => {
+          this.updateUserMappingField("subject", e.target.value);
+        }} />
+        {Setting.getLabel(i18next.t("provider:Email content"), i18next.t("provider:Email content - Tooltip"))} :
+        <Input value={this.state.provider.userMapping.content} onChange={e => {
+          this.updateUserMappingField("content", e.target.value);
+        }} />
+      </React.Fragment>
+    );
+  }
+
   getClientIdLabel(provider) {
     switch (provider.category) {
     case "OAuth":
@@ -1097,6 +1144,9 @@ class ProviderEditPage extends React.Component {
                   </Col>
                 </Row>
               )}
+              {
+                !["Custom HTTP Email"].includes(this.state.provider.type) ? null : (
+                  <React.Fragment>
                     <Row style={{marginTop: "20px"}} >
                       <Col style={{marginTop: "5px"}} span={2}>
                         {Setting.getLabel(i18next.t("general:Method"), i18next.t("provider:Method - Tooltip"))} :
@@ -1116,6 +1166,25 @@ class ProviderEditPage extends React.Component {
                         </Select>
                       </Col>
                     </Row>
+                    {
+                      this.state.provider.method !== "GET" ? (<Row style={{marginTop: "20px"}} >
+                        <Col style={{marginTop: "5px"}} span={(Setting.isMobile()) ? 22 : 2}>
+                          {Setting.getLabel(i18next.t("webhook:Content type"), i18next.t("webhook:Content type - Tooltip"))} :
+                        </Col>
+                        <Col span={22} >
+                          <Select virtual={false} style={{width: "100%"}} value={this.state.provider.issuerUrl === "" ? "application/x-www-form-urlencoded" : this.state.provider.issuerUrl} onChange={value => {
+                            this.updateProviderField("issuerUrl", value);
+                          }}>
+                            {
+                              [
+                                {id: "application/json", name: "application/json"},
+                                {id: "application/x-www-form-urlencoded", name: "application/x-www-form-urlencoded"},
+                              ].map((method, index) => <Option key={index} value={method.id}>{method.name}</Option>)
+                            }
+                          </Select>
+                        </Col>
+                      </Row>) : null
+                    }
                     <Row style={{marginTop: "20px"}} >
                       <Col style={{marginTop: "5px"}} span={(Setting.isMobile()) ? 22 : 2}>
                         {Setting.getLabel(i18next.t("provider:HTTP header"), i18next.t("provider:HTTP header - Tooltip"))} :
@@ -1124,6 +1193,17 @@ class ProviderEditPage extends React.Component {
                         <HttpHeaderTable httpHeaders={this.state.provider.httpHeaders} onUpdateTable={(value) => {this.updateProviderField("httpHeaders", value);}} />
                       </Col>
                     </Row>
+                    {this.state.provider.method !== "GET" ? <Row style={{marginTop: "20px"}}>
+                      <Col style={{marginTop: "5px"}} span={(Setting.isMobile()) ? 22 : 2}>
+                        {Setting.getLabel(i18next.t("provider:HTTP body mapping"), i18next.t("provider:HTTP body mapping - Tooltip"))} :
+                      </Col>
+                      <Col span={22}>
+                        {this.renderEmailMappingInput()}
+                      </Col>
+                    </Row> : null}
+                  </React.Fragment>
+                )
+              }
               <Row style={{marginTop: "20px"}} >
                 <Col style={{marginTop: "5px"}} span={(Setting.isMobile()) ? 22 : 2}>
                   {Setting.getLabel(i18next.t("provider:Email title"), i18next.t("provider:Email title - Tooltip"))} :