protobuf

Makefile

@@ -0,0 +1,13 @@
+PROTOBUF_TAGGER_PATH := ${GOPATH}/pkg/mod/github.com/srikrsna/protoc-gen-gotag@v1.0.2
+
+all:
+
+js_proto:
+	protoc -I=. -I=${PROTOBUF_TAGGER_PATH} --ts_out=./frontend/wizard-vue/src/urlmaker ./proto/specs.proto
+	sed -i '1 i //@ts-nocheck' ./frontend/wizard-vue/src/urlmaker/google/protobuf/descriptor.ts
+
+go_proto:
+	protoc -I=. -I=${PROTOBUF_TAGGER_PATH} --go_out=. ./proto/specs.proto
+	protoc -I=. -I=${PROTOBUF_TAGGER_PATH} --gotag_out=. ./proto/specs.proto
+
+proto: js_proto go_proto

cmd/webserver/webserver.go

@@ -50,7 +50,9 @@ func main() {
 
 	e := echo.New()
 	e.Use(middleware.Logger())
+	if !cfg.Debug {
 		e.Use(middleware.Recover())
+	}
 
 	setIPExtractor(e, cfg)
 

frontend/wizard-vue/package-lock.json

@@ -10,12 +10,14 @@
       "dependencies": {
         "@kalimahapps/vue-icons": "^1.7.1",
         "es-toolkit": "^1.32.0",
+        "google-protobuf": "^3.21.4",
         "pinia": "^2.3.1",
         "vue": "^3.5.13",
         "vue-router": "^4.5.0"
       },
       "devDependencies": {
         "@tsconfig/node22": "^22.0.0",
+        "@types/google-protobuf": "^3.15.12",
         "@types/node": "^22.10.7",
         "@vitejs/plugin-vue": "^5.2.1",
         "@vue/eslint-config-prettier": "^10.1.0",
@@ -1664,6 +1666,13 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/google-protobuf": {
+      "version": "3.15.12",
+      "resolved": "https://registry.npmjs.org/@types/google-protobuf/-/google-protobuf-3.15.12.tgz",
+      "integrity": "sha512-40um9QqwHjRS92qnOaDpL7RmDK15NuZYo9HihiJRbYkMQZlWnuH8AdvbMy8/o6lgLmKbDUKa+OALCltHdbOTpQ==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/json-schema": {
       "version": "7.0.15",
       "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.15.tgz",
@@ -3274,6 +3283,12 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/google-protobuf": {
+      "version": "3.21.4",
+      "resolved": "https://registry.npmjs.org/google-protobuf/-/google-protobuf-3.21.4.tgz",
+      "integrity": "sha512-MnG7N936zcKTco4Jd2PX2U96Kf9PxygAPKBug+74LHzmHXmceN16MmRcdgZv+DGef/S9YvQAfRsNCn4cjf9yyQ==",
+      "license": "(BSD-3-Clause AND Apache-2.0)"
+    },
     "node_modules/graceful-fs": {
       "version": "4.2.11",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.11.tgz",

frontend/wizard-vue/package.json

@@ -15,12 +15,14 @@
   "dependencies": {
     "@kalimahapps/vue-icons": "^1.7.1",
     "es-toolkit": "^1.32.0",
+    "google-protobuf": "^3.21.4",
     "pinia": "^2.3.1",
     "vue": "^3.5.13",
     "vue-router": "^4.5.0"
   },
   "devDependencies": {
     "@tsconfig/node22": "^22.0.0",
+    "@types/google-protobuf": "^3.15.12",
     "@types/node": "^22.10.7",
     "@vitejs/plugin-vue": "^5.2.1",
     "@vue/eslint-config-prettier": "^10.1.0",

frontend/wizard-vue/src/urlmaker/index.ts

@@ -1,4 +1,6 @@
 import type {Specs} from "@/urlmaker/specs.ts";
+import {b64decode, b64encode, compress, decompress, decompressString} from "@/urlmaker/utils.ts";
+import {rssalchemy as pb} from '@/urlmaker/proto/specs.ts';
 
 const apiBase = import.meta.env.VITE_API_BASE || document.location.origin;
 const renderEndpoint = '/api/v1/render/';  // trailing slash
@@ -23,7 +25,7 @@ export async function decodePreset(preset: string): Promise<Specs> {
 }
 
 export async function decodeSpecsPart(encodedData: string): Promise<Specs> {
-  console.log('Data len=' + encodedData.length);
+  console.log('Decoded data len=' + encodedData.length);
   const m = encodedData.match(/(\d*):?([A-Za-z0-9+/=]+)/);
   if(!m) {
     throw 'Regex failed';
@@ -33,12 +35,18 @@ export async function decodeSpecsPart(encodedData: string): Promise<Specs> {
   encodedData = m[2];
 
   let buf = b64decode(encodedData);
-  if (version === 0) {
+  switch (version) {
-    const jsonData = await decompress(buf);
+    case 0:
+      const jsonData = await decompressString(buf);
       return JSON.parse(jsonData);
-  }
+    case 1:
+      const data = await decompress(buf);
+      //@ts-ignore
+      return pb.Specs.deserializeBinary(data).toObject();
+    default:
       throw 'Unknown version'
   }
+}
 
 export async function encodeUrl(specs: Specs): Promise<string> {
   return `${apiBase}${renderEndpoint}${await encodeSpecsPart(specs)}`
@@ -49,48 +57,15 @@ export async function encodePreset(specs: Specs): Promise<string> {
 }
 
 export async function encodeSpecsPart(specs: Specs): Promise<string> {
-  const jsonData = JSON.stringify(specs);
+  const pbSpecs = pb.Specs.fromObject(specs);
-  const buf = await compress(jsonData);
+  let data = pbSpecs.serializeBinary();
-  const encodedData = b64encode(buf);
+  data = await compress(data);
-  console.log('Data len=' + encodedData.length);
+  const encodedData = b64encode(data);
-  const version = 0;
+  console.log('Encoded data len=' + encodedData.length);
+  const version = 1;
   return `${version}:${encodedData}`;
 }
 
 export function getScreenshotUrl(url: string): string {
   return `${apiBase}${screenshotEndpoint}?url=${encodeURIComponent(url)}`;
 }
-
-function b64encode(buf: Uint8Array): string {
-  // @ts-ignore
-  const b64str = btoa(String.fromCharCode.apply(null, buf));
-  // @ts-ignore
-  return b64str.replaceAll('=', '');
-}
-
-function b64decode(s: string): Uint8Array {
-  return Uint8Array.from(atob(s), c => c.charCodeAt(0));
-}
-
-async function compress(s: string): Promise<Uint8Array> {
-  let byteArray = new TextEncoder().encode(s);
-  let cs = new CompressionStream('deflate-raw');
-  let writer = cs.writable.getWriter();
-  // noinspection ES6MissingAwait
-  writer.write(byteArray);
-  // noinspection ES6MissingAwait
-  writer.close();
-  let response = new Response(cs.readable);
-  return new Uint8Array(await response.arrayBuffer());
-}
-
-async function decompress(buf: Uint8Array): Promise<string> {
-  let ds = new DecompressionStream('deflate-raw');
-  let writer = ds.writable.getWriter();
-  // noinspection ES6MissingAwait
-  writer.write(buf);
-  // noinspection ES6MissingAwait
-  writer.close();
-  let response = new Response(ds.readable);
-  return response.text();
-}

frontend/wizard-vue/src/urlmaker/proto/specs.ts

@@ -0,0 +1,283 @@
+/**
+ * Generated by the protoc-gen-ts.  DO NOT EDIT!
+ * compiler version: 5.29.3
+ * source: proto/specs.proto
+ * git: https://github.com/thesayyn/protoc-gen-ts */
+import * as dependency_1 from "./../tagger/tagger";
+import * as pb_1 from "google-protobuf";
+export namespace rssalchemy {
+    export class Specs extends pb_1.Message {
+        #one_of_decls: number[][] = [];
+        constructor(data?: any[] | {
+            url?: string;
+            selector_post?: string;
+            selector_title?: string;
+            selector_link?: string;
+            selector_description?: string;
+            selector_author?: string;
+            selector_created?: string;
+            selector_content?: string;
+            selector_enclosure?: string;
+            cache_lifetime?: string;
+        }) {
+            super();
+            pb_1.Message.initialize(this, Array.isArray(data) ? data : [], 0, -1, [], this.#one_of_decls);
+            if (!Array.isArray(data) && typeof data == "object") {
+                if ("url" in data && data.url != undefined) {
+                    this.url = data.url;
+                }
+                if ("selector_post" in data && data.selector_post != undefined) {
+                    this.selector_post = data.selector_post;
+                }
+                if ("selector_title" in data && data.selector_title != undefined) {
+                    this.selector_title = data.selector_title;
+                }
+                if ("selector_link" in data && data.selector_link != undefined) {
+                    this.selector_link = data.selector_link;
+                }
+                if ("selector_description" in data && data.selector_description != undefined) {
+                    this.selector_description = data.selector_description;
+                }
+                if ("selector_author" in data && data.selector_author != undefined) {
+                    this.selector_author = data.selector_author;
+                }
+                if ("selector_created" in data && data.selector_created != undefined) {
+                    this.selector_created = data.selector_created;
+                }
+                if ("selector_content" in data && data.selector_content != undefined) {
+                    this.selector_content = data.selector_content;
+                }
+                if ("selector_enclosure" in data && data.selector_enclosure != undefined) {
+                    this.selector_enclosure = data.selector_enclosure;
+                }
+                if ("cache_lifetime" in data && data.cache_lifetime != undefined) {
+                    this.cache_lifetime = data.cache_lifetime;
+                }
+            }
+        }
+        get url() {
+            return pb_1.Message.getFieldWithDefault(this, 1, "") as string;
+        }
+        set url(value: string) {
+            pb_1.Message.setField(this, 1, value);
+        }
+        get selector_post() {
+            return pb_1.Message.getFieldWithDefault(this, 2, "") as string;
+        }
+        set selector_post(value: string) {
+            pb_1.Message.setField(this, 2, value);
+        }
+        get selector_title() {
+            return pb_1.Message.getFieldWithDefault(this, 3, "") as string;
+        }
+        set selector_title(value: string) {
+            pb_1.Message.setField(this, 3, value);
+        }
+        get selector_link() {
+            return pb_1.Message.getFieldWithDefault(this, 4, "") as string;
+        }
+        set selector_link(value: string) {
+            pb_1.Message.setField(this, 4, value);
+        }
+        get selector_description() {
+            return pb_1.Message.getFieldWithDefault(this, 5, "") as string;
+        }
+        set selector_description(value: string) {
+            pb_1.Message.setField(this, 5, value);
+        }
+        get selector_author() {
+            return pb_1.Message.getFieldWithDefault(this, 6, "") as string;
+        }
+        set selector_author(value: string) {
+            pb_1.Message.setField(this, 6, value);
+        }
+        get selector_created() {
+            return pb_1.Message.getFieldWithDefault(this, 7, "") as string;
+        }
+        set selector_created(value: string) {
+            pb_1.Message.setField(this, 7, value);
+        }
+        get selector_content() {
+            return pb_1.Message.getFieldWithDefault(this, 8, "") as string;
+        }
+        set selector_content(value: string) {
+            pb_1.Message.setField(this, 8, value);
+        }
+        get selector_enclosure() {
+            return pb_1.Message.getFieldWithDefault(this, 9, "") as string;
+        }
+        set selector_enclosure(value: string) {
+            pb_1.Message.setField(this, 9, value);
+        }
+        get cache_lifetime() {
+            return pb_1.Message.getFieldWithDefault(this, 10, "") as string;
+        }
+        set cache_lifetime(value: string) {
+            pb_1.Message.setField(this, 10, value);
+        }
+        static fromObject(data: {
+            url?: string;
+            selector_post?: string;
+            selector_title?: string;
+            selector_link?: string;
+            selector_description?: string;
+            selector_author?: string;
+            selector_created?: string;
+            selector_content?: string;
+            selector_enclosure?: string;
+            cache_lifetime?: string;
+        }): Specs {
+            const message = new Specs({});
+            if (data.url != null) {
+                message.url = data.url;
+            }
+            if (data.selector_post != null) {
+                message.selector_post = data.selector_post;
+            }
+            if (data.selector_title != null) {
+                message.selector_title = data.selector_title;
+            }
+            if (data.selector_link != null) {
+                message.selector_link = data.selector_link;
+            }
+            if (data.selector_description != null) {
+                message.selector_description = data.selector_description;
+            }
+            if (data.selector_author != null) {
+                message.selector_author = data.selector_author;
+            }
+            if (data.selector_created != null) {
+                message.selector_created = data.selector_created;
+            }
+            if (data.selector_content != null) {
+                message.selector_content = data.selector_content;
+            }
+            if (data.selector_enclosure != null) {
+                message.selector_enclosure = data.selector_enclosure;
+            }
+            if (data.cache_lifetime != null) {
+                message.cache_lifetime = data.cache_lifetime;
+            }
+            return message;
+        }
+        toObject() {
+            const data: {
+                url?: string;
+                selector_post?: string;
+                selector_title?: string;
+                selector_link?: string;
+                selector_description?: string;
+                selector_author?: string;
+                selector_created?: string;
+                selector_content?: string;
+                selector_enclosure?: string;
+                cache_lifetime?: string;
+            } = {};
+            if (this.url != null) {
+                data.url = this.url;
+            }
+            if (this.selector_post != null) {
+                data.selector_post = this.selector_post;
+            }
+            if (this.selector_title != null) {
+                data.selector_title = this.selector_title;
+            }
+            if (this.selector_link != null) {
+                data.selector_link = this.selector_link;
+            }
+            if (this.selector_description != null) {
+                data.selector_description = this.selector_description;
+            }
+            if (this.selector_author != null) {
+                data.selector_author = this.selector_author;
+            }
+            if (this.selector_created != null) {
+                data.selector_created = this.selector_created;
+            }
+            if (this.selector_content != null) {
+                data.selector_content = this.selector_content;
+            }
+            if (this.selector_enclosure != null) {
+                data.selector_enclosure = this.selector_enclosure;
+            }
+            if (this.cache_lifetime != null) {
+                data.cache_lifetime = this.cache_lifetime;
+            }
+            return data;
+        }
+        serialize(): Uint8Array;
+        serialize(w: pb_1.BinaryWriter): void;
+        serialize(w?: pb_1.BinaryWriter): Uint8Array | void {
+            const writer = w || new pb_1.BinaryWriter();
+            if (this.url.length)
+                writer.writeString(1, this.url);
+            if (this.selector_post.length)
+                writer.writeString(2, this.selector_post);
+            if (this.selector_title.length)
+                writer.writeString(3, this.selector_title);
+            if (this.selector_link.length)
+                writer.writeString(4, this.selector_link);
+            if (this.selector_description.length)
+                writer.writeString(5, this.selector_description);
+            if (this.selector_author.length)
+                writer.writeString(6, this.selector_author);
+            if (this.selector_created.length)
+                writer.writeString(7, this.selector_created);
+            if (this.selector_content.length)
+                writer.writeString(8, this.selector_content);
+            if (this.selector_enclosure.length)
+                writer.writeString(9, this.selector_enclosure);
+            if (this.cache_lifetime.length)
+                writer.writeString(10, this.cache_lifetime);
+            if (!w)
+                return writer.getResultBuffer();
+        }
+        static deserialize(bytes: Uint8Array | pb_1.BinaryReader): Specs {
+            const reader = bytes instanceof pb_1.BinaryReader ? bytes : new pb_1.BinaryReader(bytes), message = new Specs();
+            while (reader.nextField()) {
+                if (reader.isEndGroup())
+                    break;
+                switch (reader.getFieldNumber()) {
+                    case 1:
+                        message.url = reader.readString();
+                        break;
+                    case 2:
+                        message.selector_post = reader.readString();
+                        break;
+                    case 3:
+                        message.selector_title = reader.readString();
+                        break;
+                    case 4:
+                        message.selector_link = reader.readString();
+                        break;
+                    case 5:
+                        message.selector_description = reader.readString();
+                        break;
+                    case 6:
+                        message.selector_author = reader.readString();
+                        break;
+                    case 7:
+                        message.selector_created = reader.readString();
+                        break;
+                    case 8:
+                        message.selector_content = reader.readString();
+                        break;
+                    case 9:
+                        message.selector_enclosure = reader.readString();
+                        break;
+                    case 10:
+                        message.cache_lifetime = reader.readString();
+                        break;
+                    default: reader.skipField();
+                }
+            }
+            return message;
+        }
+        serializeBinary(): Uint8Array {
+            return this.serialize();
+        }
+        static deserializeBinary(bytes: Uint8Array): Specs {
+            return Specs.deserialize(bytes);
+        }
+    }
+}

frontend/wizard-vue/src/urlmaker/tagger/tagger.ts

@@ -0,0 +1,7 @@
+/**
+ * Generated by the protoc-gen-ts.  DO NOT EDIT!
+ * compiler version: 5.29.3
+ * source: tagger/tagger.proto
+ * git: https://github.com/thesayyn/protoc-gen-ts */
+import * as dependency_1 from "./../google/protobuf/descriptor";
+export namespace tagger { }

frontend/wizard-vue/src/urlmaker/utils.ts

@@ -0,0 +1,41 @@
+export async function compress(s: string|Uint8Array): Promise<Uint8Array> {
+  if(typeof s === 'string') {
+    s = new TextEncoder().encode(s);
+  }
+  let cs = new CompressionStream('deflate-raw');
+  let writer = cs.writable.getWriter();
+  // noinspection ES6MissingAwait
+  writer.write(s);
+  // noinspection ES6MissingAwait
+  writer.close();
+  let response = new Response(cs.readable);
+  return new Uint8Array(await response.arrayBuffer());
+}
+
+export async function decompress(buf: Uint8Array): Promise<Uint8Array> {
+  let ds = new DecompressionStream('deflate-raw');
+  let writer = ds.writable.getWriter();
+  // noinspection ES6MissingAwait
+  writer.write(buf);
+  // noinspection ES6MissingAwait
+  writer.close();
+  let response = new Response(ds.readable);
+  return response.bytes();
+}
+
+export async function decompressString(buf: Uint8Array): Promise<string> {
+  const binary = await decompress(buf);
+  // @ts-ignore
+  return String.fromCharCode.apply(null, binary);
+}
+
+export function b64encode(buf: Uint8Array): string {
+  // @ts-ignore
+  const b64str = btoa(String.fromCharCode.apply(null, buf));
+  // @ts-ignore
+  return b64str.replaceAll('=', '');
+}
+
+export function b64decode(s: string): Uint8Array {
+  return Uint8Array.from(atob(s), c => c.charCodeAt(0));
+}

go.mod

@@ -16,8 +16,10 @@ require (
 	github.com/nats-io/nats.go v1.38.0
 	github.com/playwright-community/playwright-go v0.5001.0
 	github.com/redis/go-redis/v9 v9.7.0
+	github.com/srikrsna/protoc-gen-gotag v1.0.2
 	github.com/stretchr/testify v1.10.0
 	golang.org/x/time v0.8.0
+	google.golang.org/protobuf v1.35.2
 )
 
 require (
@@ -97,7 +99,6 @@ require (
 	google.golang.org/genproto/googleapis/api v0.0.0-20240814211410-ddb44dafa142 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20240814211410-ddb44dafa142 // indirect
 	google.golang.org/grpc v1.67.1 // indirect
-	google.golang.org/protobuf v1.35.2 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	olympos.io/encoding/edn v0.0.0-20201019073823-d3554ca0b0a3 // indirect
 )

go.sum

@@ -92,6 +92,7 @@ github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL
 github.com/fatih/color v1.13.0/go.mod h1:kLAiJbzzSOZDVNGyDpeOxJ47H46qBXwg5ILebYFFOfk=
 github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=
 github.com/fatih/color v1.16.0/go.mod h1:fL2Sau1YI5c0pdGEVCbKQbLXB6edEj1ZgiY4NijnWvE=
+github.com/fatih/structtag v1.2.0/go.mod h1:mBJUNpUnHmRKrKlQQlmCrh5PuhftFbNv8Ys4/aAZl94=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
 github.com/gabriel-vasile/mimetype v1.4.3 h1:in2uUcidCuFcDKtdcBxlR0rJ1+fsokWf+uqxgUFjbI0=
@@ -226,6 +227,7 @@ github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+o
 github.com/klauspost/compress v1.17.9 h1:6KIumPrER1LHsvBVuDa0r5xaG0Es51mhhB9BQB2qeMA=
 github.com/klauspost/compress v1.17.9/go.mod h1:Di0epgTjJY877eYKx5yC51cX2A2Vl2ibi7bDH9ttBbw=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/kr/fs v0.1.0/go.mod h1:FFnZGqtBN9Gxj7eW1uZ42v5BccTP0vu6NEaFoC2HwRg=
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
@@ -242,6 +244,7 @@ github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
 github.com/leodido/go-urn v1.4.0/go.mod h1:bvxc+MVxLKB4z00jd1z+Dvzr47oO32F/QSNjSBOlFxI=
 github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
 github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
+github.com/lyft/protoc-gen-star/v2 v2.0.3/go.mod h1:amey7yeodaJhXSbf/TlLvWiqQfLOSpEk//mLlc+axEk=
 github.com/magefile/mage v1.14.0 h1:6QDX3g6z1YvJ4olPhT1wksUcSa/V0a1B+pJb73fBjyo=
 github.com/magefile/mage v1.14.0/go.mod h1:z5UZb/iS3GoOSn0JgWuiw7dxlurVYTu+/jHXqQg881A=
 github.com/markusmobius/go-dateparser v1.2.3 h1:TvrsIvr5uk+3v6poDjaicnAFJ5IgtFHgLiuMY2Eb7Nw=
@@ -302,6 +305,7 @@ github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
 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/pkg/sftp v1.10.1/go.mod h1:lYOWFsE0bwd1+KfKJaKeuokY15vzFx25BLbzYYoAxZI=
 github.com/playwright-community/playwright-go v0.5001.0 h1:EY3oB+rU9cUp6CLHguWE8VMZTwAg+83Yyb7dQqEmGLg=
 github.com/playwright-community/playwright-go v0.5001.0/go.mod h1:kBNWs/w2aJ2ZUp1wEOOFLXgOqvppFngM5OS+qyhl+ZM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
@@ -332,6 +336,10 @@ github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529 h1:nn5Wsu0esKSJiIVhscUt
 github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg65j358z/aeFdxmN0P9QXhEzd20vsDc=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
+github.com/spf13/afero v1.3.3/go.mod h1:5KUK8ByomD5Ti5Artl0RtHeI5pTF7MIDuXL3yY520V4=
+github.com/spf13/afero v1.5.1/go.mod h1:Ai8FlHk4v/PARR026UzYexafAt9roJ7LcLMAmO6Z93I=
+github.com/srikrsna/protoc-gen-gotag v1.0.2 h1:4okv8GlbVbvmL678VX0AobxaMkERlBbHvgWhUnbcrPM=
+github.com/srikrsna/protoc-gen-gotag v1.0.2/go.mod h1:HiXK5kcp/ZRnNPahuJm3tzfGDoD8xzvLNdg5/PYKq7Q=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
@@ -342,6 +350,7 @@ github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.2/go.mod h1:R6va5+xMeoiuVRoj+gSkQ7d3FALtqAAGI1FQKckRals=
@@ -383,6 +392,7 @@ go.uber.org/zap v1.24.0 h1:FiJd5l1UOLj0wCgbSE0rwwXHzEdAZS6hiiSnxJN/D60=
 go.uber.org/zap v1.24.0/go.mod h1:2kMP+WWQ8aoFoedH3T2sq6iJ2yDWpHbP0f6MQbS9Gkg=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20190820162420-60c769a6c586/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190923035154-9ee001bba392/go.mod h1:/lpIB1dKB+9EgE3H3cr1v9wB50oz8l4C4h62xy7jSTY=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
@@ -473,6 +483,7 @@ golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
+golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
 golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
@@ -506,6 +517,7 @@ google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzi
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 google.golang.org/protobuf v1.35.2 h1:8Ar7bF+apOIoThw1EdZl0p1oWvMqTHmpA2fRTyZO8io=
 google.golang.org/protobuf v1.35.2/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=

internal/api/http/handler.go

@@ -9,6 +9,7 @@ import (
 	"errors"
 	"fmt"
 	"github.com/egor3f/rssalchemy/internal/adapters"
+	"github.com/egor3f/rssalchemy/internal/api/http/pb"
 	"github.com/egor3f/rssalchemy/internal/models"
 	"github.com/egor3f/rssalchemy/internal/validators"
 	"github.com/go-playground/validator/v10"
@@ -16,6 +17,7 @@ import (
 	"github.com/labstack/echo/v4"
 	"github.com/labstack/gommon/log"
 	"golang.org/x/time/rate"
+	"google.golang.org/protobuf/proto"
 	"html"
 	"io"
 	"net/url"
@@ -64,19 +66,6 @@ func (h *Handler) SetupRoutes(g *echo.Group) {
 	g.GET("/screenshot", h.handlePageScreenshot)
 }
 
-type Specs struct {
-	URL                 string `json:"URL" validate:"url"`
-	SelectorPost        string `json:"selector_post" validate:"selector"`
-	SelectorTitle       string `json:"selector_title" validate:"selector"`
-	SelectorLink        string `json:"selector_link" validate:"selector"`
-	SelectorDescription string `json:"selector_description" validate:"omitempty,selector"`
-	SelectorAuthor      string `json:"selector_author" validate:"selector"`
-	SelectorCreated     string `json:"selector_created" validate:"selector"`
-	SelectorContent     string `json:"selector_content" validate:"omitempty,selector"`
-	SelectorEnclosure   string `json:"selector_enclosure" validate:"selector"`
-	CacheLifetime       string `json:"cache_lifetime"`
-}
-
 func (h *Handler) handleRender(c echo.Context) error {
 	specsParam := c.Param("specs")
 	specs, err := h.decodeSpecs(specsParam)
@@ -86,7 +75,7 @@ func (h *Handler) handleRender(c echo.Context) error {
 
 	task := models.Task{
 		TaskType:            models.TaskTypeExtract,
-		URL:                 specs.URL,
+		URL:                 specs.Url,
 		SelectorPost:        specs.SelectorPost,
 		SelectorTitle:       specs.SelectorTitle,
 		SelectorLink:        specs.SelectorLink,
@@ -199,37 +188,44 @@ func (h *Handler) checkRateLimit(c echo.Context) bool {
 	return limiter.Allow()
 }
 
-func (h *Handler) decodeSpecs(specsParam string) (Specs, error) {
+func (h *Handler) decodeSpecs(specsParam string) (*pb.Specs, error) {
 	var err error
 	version := 0
 	paramSplit := strings.Split(specsParam, ":")
 	if len(paramSplit) == 2 {
 		version, err = strconv.Atoi(paramSplit[0])
 		if err != nil {
-			return Specs{}, fmt.Errorf("invalid version: %s", paramSplit[0])
+			return nil, fmt.Errorf("invalid version: %s", paramSplit[0])
 		}
 		specsParam = paramSplit[1]
 	}
 
-	if version != 0 {
-		return Specs{}, fmt.Errorf("unknown version: %d", version)
-	}
-
 	decodedSpecsParam, err := base64.StdEncoding.WithPadding(base64.NoPadding).DecodeString(specsParam)
 	if err != nil {
-		return Specs{}, fmt.Errorf("failed to decode specs: %w", err)
+		return nil, fmt.Errorf("failed to decode specs: %w", err)
 	}
 	rc := flate.NewReader(bytes.NewReader(decodedSpecsParam))
 	decodedSpecsParam, err = io.ReadAll(rc)
 	if err != nil {
-		return Specs{}, fmt.Errorf("failed to unzip specs: %w", err)
+		return nil, fmt.Errorf("failed to unzip specs: %w", err)
 	}
-	var specs Specs
+
-	if err := json.Unmarshal(decodedSpecsParam, &specs); err != nil {
+	specs := &pb.Specs{}
-		return Specs{}, fmt.Errorf("failed to unmarshal specs: %w", err)
+	switch version {
+	case 0:
+		if err := json.Unmarshal(decodedSpecsParam, specs); err != nil {
+			return nil, fmt.Errorf("failed to unmarshal json specs: %w", err)
 		}
+	case 1:
+		if err := proto.Unmarshal(decodedSpecsParam, specs); err != nil {
+			return nil, fmt.Errorf("failed to unmarshal proto specs: %w", err)
+		}
+	default:
+		return nil, fmt.Errorf("unknown version: %d", version)
+	}
+
 	if err := h.validate.Struct(specs); err != nil {
-		return Specs{}, fmt.Errorf("specs are invalid: %w", err)
+		return nil, fmt.Errorf("specs are invalid: %w", err)
 	}
 	return specs, nil
 }

internal/api/http/pb/specs.pb.go

@@ -0,0 +1,253 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.36.4
+// 	protoc        v5.29.3
+// source: proto/specs.proto
+
+package pb
+
+import (
+	_ "github.com/srikrsna/protoc-gen-gotag/tagger"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+	unsafe "unsafe"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type Specs struct {
+	state               protoimpl.MessageState `protogen:"open.v1"`
+	Url                 string                 `protobuf:"bytes,1,opt,name=url,proto3" json:"url" validate:"url"`
+	SelectorPost        string                 `protobuf:"bytes,2,opt,name=selector_post,json=selectorPost,proto3" json:"selector_post" validate:"selector"`
+	SelectorTitle       string                 `protobuf:"bytes,3,opt,name=selector_title,json=selectorTitle,proto3" json:"selector_title" validate:"selector"`
+	SelectorLink        string                 `protobuf:"bytes,4,opt,name=selector_link,json=selectorLink,proto3" json:"selector_link" validate:"selector"`
+	SelectorDescription string                 `protobuf:"bytes,5,opt,name=selector_description,json=selectorDescription,proto3" json:"selector_description" validate:"omitempty,selector"`
+	SelectorAuthor      string                 `protobuf:"bytes,6,opt,name=selector_author,json=selectorAuthor,proto3" json:"selector_author" validate:"selector"`
+	SelectorCreated     string                 `protobuf:"bytes,7,opt,name=selector_created,json=selectorCreated,proto3" json:"selector_created" validate:"selector"`
+	SelectorContent     string                 `protobuf:"bytes,8,opt,name=selector_content,json=selectorContent,proto3" json:"selector_content" validate:"omitempty,selector"`
+	SelectorEnclosure   string                 `protobuf:"bytes,9,opt,name=selector_enclosure,json=selectorEnclosure,proto3" json:"selector_enclosure" validate:"selector"`
+	CacheLifetime       string                 `protobuf:"bytes,10,opt,name=cache_lifetime,json=cacheLifetime,proto3" json:"cache_lifetime"`
+	unknownFields       protoimpl.UnknownFields
+	sizeCache           protoimpl.SizeCache
+}
+
+func (x *Specs) Reset() {
+	*x = Specs{}
+	mi := &file_proto_specs_proto_msgTypes[0]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *Specs) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Specs) ProtoMessage() {}
+
+func (x *Specs) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_specs_proto_msgTypes[0]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Specs.ProtoReflect.Descriptor instead.
+func (*Specs) Descriptor() ([]byte, []int) {
+	return file_proto_specs_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Specs) GetUrl() string {
+	if x != nil {
+		return x.Url
+	}
+	return ""
+}
+
+func (x *Specs) GetSelectorPost() string {
+	if x != nil {
+		return x.SelectorPost
+	}
+	return ""
+}
+
+func (x *Specs) GetSelectorTitle() string {
+	if x != nil {
+		return x.SelectorTitle
+	}
+	return ""
+}
+
+func (x *Specs) GetSelectorLink() string {
+	if x != nil {
+		return x.SelectorLink
+	}
+	return ""
+}
+
+func (x *Specs) GetSelectorDescription() string {
+	if x != nil {
+		return x.SelectorDescription
+	}
+	return ""
+}
+
+func (x *Specs) GetSelectorAuthor() string {
+	if x != nil {
+		return x.SelectorAuthor
+	}
+	return ""
+}
+
+func (x *Specs) GetSelectorCreated() string {
+	if x != nil {
+		return x.SelectorCreated
+	}
+	return ""
+}
+
+func (x *Specs) GetSelectorContent() string {
+	if x != nil {
+		return x.SelectorContent
+	}
+	return ""
+}
+
+func (x *Specs) GetSelectorEnclosure() string {
+	if x != nil {
+		return x.SelectorEnclosure
+	}
+	return ""
+}
+
+func (x *Specs) GetCacheLifetime() string {
+	if x != nil {
+		return x.CacheLifetime
+	}
+	return ""
+}
+
+var File_proto_specs_proto protoreflect.FileDescriptor
+
+var file_proto_specs_proto_rawDesc = string([]byte{
+	0x0a, 0x11, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x73, 0x70, 0x65, 0x63, 0x73, 0x2e, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x12, 0x0a, 0x72, 0x73, 0x73, 0x61, 0x6c, 0x63, 0x68, 0x65, 0x6d, 0x79, 0x1a,
+	0x13, 0x74, 0x61, 0x67, 0x67, 0x65, 0x72, 0x2f, 0x74, 0x61, 0x67, 0x67, 0x65, 0x72, 0x2e, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x22, 0xef, 0x06, 0x0a, 0x05, 0x53, 0x70, 0x65, 0x63, 0x73, 0x12, 0x30,
+	0x0a, 0x03, 0x75, 0x72, 0x6c, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x42, 0x1e, 0x9a, 0x84, 0x9e,
+	0x03, 0x19, 0x6a, 0x73, 0x6f, 0x6e, 0x3a, 0x22, 0x75, 0x72, 0x6c, 0x22, 0x20, 0x76, 0x61, 0x6c,
+	0x69, 0x64, 0x61, 0x74, 0x65, 0x3a, 0x22, 0x75, 0x72, 0x6c, 0x22, 0x52, 0x03, 0x75, 0x72, 0x6c,
+	0x12, 0x52, 0x0a, 0x0d, 0x73, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x5f, 0x70, 0x6f, 0x73,
+	0x74, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x42, 0x2d, 0x9a, 0x84, 0x9e, 0x03, 0x28, 0x6a, 0x73,
+	0x6f, 0x6e, 0x3a, 0x22, 0x73, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x5f, 0x70, 0x6f, 0x73,
+	0x74, 0x22, 0x20, 0x76, 0x61, 0x6c, 0x69, 0x64, 0x61, 0x74, 0x65, 0x3a, 0x22, 0x73, 0x65, 0x6c,
+	0x65, 0x63, 0x74, 0x6f, 0x72, 0x22, 0x52, 0x0c, 0x73, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x6f, 0x72,
+	0x50, 0x6f, 0x73, 0x74, 0x12, 0x55, 0x0a, 0x0e, 0x73, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x6f, 0x72,
+	0x5f, 0x74, 0x69, 0x74, 0x6c, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x42, 0x2e, 0x9a, 0x84,
+	0x9e, 0x03, 0x29, 0x6a, 0x73, 0x6f, 0x6e, 0x3a, 0x22, 0x73, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x6f,
+	0x72, 0x5f, 0x74, 0x69, 0x74, 0x6c, 0x65, 0x22, 0x20, 0x76, 0x61, 0x6c, 0x69, 0x64, 0x61, 0x74,
+	0x65, 0x3a, 0x22, 0x73, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x22, 0x52, 0x0d, 0x73, 0x65,
+	0x6c, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x54, 0x69, 0x74, 0x6c, 0x65, 0x12, 0x52, 0x0a, 0x0d, 0x73,
+	0x65, 0x6c, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x5f, 0x6c, 0x69, 0x6e, 0x6b, 0x18, 0x04, 0x20, 0x01,
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+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+})
+
+var (
+	file_proto_specs_proto_rawDescOnce sync.Once
+	file_proto_specs_proto_rawDescData []byte
+)
+
+func file_proto_specs_proto_rawDescGZIP() []byte {
+	file_proto_specs_proto_rawDescOnce.Do(func() {
+		file_proto_specs_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_proto_specs_proto_rawDesc), len(file_proto_specs_proto_rawDesc)))
+	})
+	return file_proto_specs_proto_rawDescData
+}
+
+var file_proto_specs_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
+var file_proto_specs_proto_goTypes = []any{
+	(*Specs)(nil), // 0: rssalchemy.Specs
+}
+var file_proto_specs_proto_depIdxs = []int32{
+	0, // [0:0] is the sub-list for method output_type
+	0, // [0:0] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_proto_specs_proto_init() }
+func file_proto_specs_proto_init() {
+	if File_proto_specs_proto != nil {
+		return
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: unsafe.Slice(unsafe.StringData(file_proto_specs_proto_rawDesc), len(file_proto_specs_proto_rawDesc)),
+			NumEnums:      0,
+			NumMessages:   1,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_proto_specs_proto_goTypes,
+		DependencyIndexes: file_proto_specs_proto_depIdxs,
+		MessageInfos:      file_proto_specs_proto_msgTypes,
+	}.Build()
+	File_proto_specs_proto = out.File
+	file_proto_specs_proto_goTypes = nil
+	file_proto_specs_proto_depIdxs = nil
+}

proto/specs.proto

@@ -0,0 +1,20 @@
+syntax = "proto3";
+
+package rssalchemy;
+
+import "tagger/tagger.proto";
+
+option go_package = "internal/api/http/pb";
+
+message Specs {
+  string url = 1 [(tagger.tags) = "json:\"url\" validate:\"url\""];
+  string selector_post = 2 [(tagger.tags) = "json:\"selector_post\" validate:\"selector\""];
+  string selector_title = 3 [(tagger.tags) = "json:\"selector_title\" validate:\"selector\""];
+  string selector_link = 4 [(tagger.tags) = "json:\"selector_link\" validate:\"selector\""];
+  string selector_description = 5 [(tagger.tags) = "json:\"selector_description\" validate:\"omitempty,selector\""];
+  string selector_author = 6 [(tagger.tags) = "json:\"selector_author\" validate:\"selector\""];
+  string selector_created = 7 [(tagger.tags) = "json:\"selector_created\" validate:\"selector\""];
+  string selector_content = 8 [(tagger.tags) = "json:\"selector_content\" validate:\"omitempty,selector\""];
+  string selector_enclosure = 9 [(tagger.tags) = "json:\"selector_enclosure\" validate:\"selector\""];
+  string cache_lifetime = 10 [(tagger.tags) = "json:\"cache_lifetime\""];
+}