feat(plantuml): support svg

src/main/server/index.ts

@@ -185,10 +185,11 @@ const searchFile = async (ctx: any, next: any) => {
 }
 
 const plantumlGen = async (ctx: any, next: any) => {
-  if (ctx.path.startsWith('/api/plantuml/png')) {
-    ctx.type = 'image/png'
+  if (ctx.path.startsWith('/api/plantuml')) {
     try {
-      ctx.body = await plantuml(ctx.query.data)
+      const { type, content } = await plantuml(ctx.query.data)
+      ctx.type = type
+      ctx.body = content
       ctx.set('cache-control', 'max-age=86400') // 1 day.
     } catch (error) {
       ctx.body = error

src/main/server/plantuml.ts

@@ -15,7 +15,7 @@ function plantumlBase64 (base64: string) {
   return base64.split('').map(x => map[x] || '').join('')
 }
 
-export default async function (data: string) {
+export default async function (data: string): Promise<{ content: any, type: string }> {
   const code = pako.inflateRaw(Buffer.from(data, 'base64'))
 
   const api = config.get('plantuml-api', 'local')
@@ -37,14 +37,14 @@ export default async function (data: string) {
     puml.in.write(code)
     puml.in.end()
 
-    return puml.out
+    return { content: puml.out, type: 'image/png' }
   } else {
-    return new Promise<void>((resolve, reject) => {
+    return new Promise((resolve, reject) => {
       request({ url: api.replace('{data}', plantumlBase64(data)), encoding: null }, function (err: any, res: any) {
         if (err) {
           reject(err)
         } else {
-          resolve(res.body)
+          resolve({ content: res.body, type: res.headers['content-type'] })
         }
       })
     })

src/renderer/plugins/markdown-plantuml.ts

@@ -9,7 +9,7 @@ import { DOM_ATTR_NAME } from '@fe/support/args'
 
 const emptySrc = 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='
 
-const baseUrl = location.origin + '/api/plantuml/png'
+const baseUrl = location.origin + '/api/plantuml'
 
 const MarkdownItPlugin = function umlPlugin (md: Markdown, options: any) {
   function generateSourceDefault (umlCode: string) {

src/renderer/services/setting.ts

@@ -123,9 +123,17 @@ const schema: Schema = {
       defaultValue: 'local',
       title: 'T_setting-panel.schema.plantuml-api',
       type: 'string',
-      enum: ['local', 'https://www.plantuml.com/plantuml/png/{data}'],
+      enum: [
+        'local',
+        'https://www.plantuml.com/plantuml/png/{data}',
+        'https://www.plantuml.com/plantuml/svg/{data}',
+      ],
       options: {
-        enum_titles: ['Local - Need Java and Graphviz', 'Online (plantuml.com)'],
+        enum_titles: [
+          'Local - Need Java and Graphviz',
+          'Online (plantuml.com) - PNG',
+          'Online (plantuml.com) - SVG',
+        ],
       },
       required: true,
       group: 'other',