feat(fe): enable customized language pack

src/client/web/src/client/files.ts

@@ -209,4 +209,11 @@ export class FilesClient extends BaseClient {
       },
     });
   };
+
+  download = (url: string): Promise<Response> => {
+    return this.do({
+      method: "get",
+      url,
+    });
+  }
 }

src/client/web/src/client/files_mock.ts

@@ -26,6 +26,7 @@ export interface FilesClientResps {
   listSharingsMockResp?: Response<ListSharingsResp>;
   isSharingMockResp?: Response;
   generateHashMockResp?: Response;
+  downloadMockResp: Response;
 }
 
 export const resps = {
@@ -132,6 +133,11 @@ export const resps = {
   },
   isSharingMockResp: { status: 200, statusText: "", data: {} },
   generateHashMockResp: { status: 200, statusText: "", data: {} },
+  downloadMockResp: {
+    status: 200,
+    statusText: "",
+    data: {},
+  },
 };
 
 export class MockFilesClient {
@@ -220,4 +226,8 @@ export class MockFilesClient {
   generateHash = (filePath: string): Promise<Response> => {
     return this.wrapPromise(this.resps.generateHashMockResp);
   };
+
+  download = (url: string): Promise<Response> => {
+    return this.wrapPromise(this.resps.downloadMockResp);
+  };
 }

src/client/web/src/client/index.ts

@@ -25,6 +25,7 @@ export interface Preferences {
   bg: BgConfig;
   cssURL: string;
   lanPackURL: string;
+  lan: string;
 }
 export interface User {
   id: string;
@@ -131,6 +132,7 @@ export interface IFilesClient {
   isSharing: (dirPath: string) => Promise<Response>;
   listSharings: () => Promise<Response<ListSharingsResp>>;
   generateHash: (filePath: string) => Promise<Response>;
+  download: (url: string) => Promise<Response>;
 }
 
 export interface ISettingsClient {

src/client/web/src/components/pane_login.tsx

@@ -80,8 +80,6 @@ export class AuthPane extends React.Component<Props, State, {}> {
         this.update(updater().updatePanes);
         this.update(updater().updateAdmin);
         this.update(updater().updateUI);
-
-        updater().initLan();
         this.update(updater().updateMsg);
       });
   };

src/client/web/src/components/pane_settings.tsx

@@ -125,7 +125,16 @@ export class PaneSettings extends React.Component<Props, State, {}> {
 
   setLan = (lan: string) => {
     updater().setLan(lan);
+    updater()
+      .syncPreferences()
+      .then((status: number) => {
+        if (status === 200) {
+          alertMsg(this.props.msg.pkg.get("update.ok"));
+        } else {
+          alertMsg(this.props.msg.pkg.get("update.fail"));
+        }
         this.props.update(updater().updateMsg);
+      });
   };
 
   render() {
@@ -416,7 +425,6 @@ export class PaneSettings extends React.Component<Props, State, {}> {
               ])}
             />
           </div>
-
         </div>
       </div>
     );

src/client/web/src/components/state_mgr.tsx

@@ -65,8 +65,6 @@ export class StateMgr extends React.Component<Props, State, {}> {
         this.update(updater().updatePanes);
         this.update(updater().updateAdmin);
         this.update(updater().updateUI);
-
-        updater().initLan();
         this.update(updater().updateMsg);
       });
   };

src/client/web/src/components/state_updater.ts

@@ -27,7 +27,7 @@ import { Up } from "../worker/upload_mgr";
 import { alertMsg } from "../common/env";
 import { LocalStorage } from "../common/localstorage";
 
-import { MsgPackage } from "../i18n/msger";
+import { MsgPackage, isValidLanPack } from "../i18n/msger";
 
 function getCookieLanKey(user: string) {
   return `qs_${user}_lan`;
@@ -359,6 +359,11 @@ export class Updater {
         // init panes
         return this.initPanes();
       })
+      .then(() => {
+        // init i18n
+        // TOOD: status is ignored, should return alert
+        return this.fetchLanPack();
+      })
       .then(() => {
         // init admin content
         if (this.props.login.userRole === roleAdmin) {
@@ -520,25 +525,19 @@ export class Updater {
     return resp.status === 200;
   };
 
-  initLan = () => {
-    const lanKey = getCookieLanKey(this.props.login.userName);
-    const lanSaved = LocalStorage.get(lanKey);
-    this.setLan(lanSaved === "" ? "en_US" : lanSaved);
-  };
-
   setLan = (lan: string) => {
-    const lanKey = getCookieLanKey(this.props.login.userName);
-
     switch (lan) {
       case "en_US":
         this.props.msg.lan = "en_US";
         this.props.msg.pkg = MsgPackage.get(lan);
-        LocalStorage.set(lanKey, "en_US");
+        this.props.login.preferences.lan = "en_US";
+        this.props.login.preferences.lanPackURL = "";
         break;
       case "zh_CN":
         this.props.msg.lan = "zh_CN";
         this.props.msg.pkg = MsgPackage.get(lan);
-        LocalStorage.set(lanKey, "zh_CN");
+        this.props.login.preferences.lan = "zh_CN";
+        this.props.login.preferences.lanPackURL = "";
         break;
       default:
         alertMsg("language package not found");
@@ -585,8 +584,10 @@ export class Updater {
     this.props.login.preferences = { ...prefer };
   };
 
-  syncPreferences = async ():Promise<number> => {
-    const resp = await this.usersClient.setPreferences(this.props.login.preferences);
+  syncPreferences = async (): Promise<number> => {
+    const resp = await this.usersClient.setPreferences(
+      this.props.login.preferences
+    );
     return resp.status;
   };
 
@@ -602,6 +603,47 @@ export class Updater {
     return resp.status;
   };
 
+  // initLan = () => {
+  //   const lanKey = getCookieLanKey(this.props.login.userName);
+  //   const lanSaved = LocalStorage.get(lanKey);
+  //   this.setLan(lanSaved === "" ? "en_US" : lanSaved);
+  // };
+
+  fetchLanPack = async (): Promise<number> => {
+    const url = this.props.login.preferences.lanPackURL;
+    if (url === "") {
+      const lan = this.props.login.preferences.lan;
+      if (lan == "en_US" || lan == "zh_CN") {
+        // fallback to build-in language pack
+        this.props.msg.lan = lan;
+        this.props.msg.pkg = MsgPackage.get(lan);
+      } else {
+        // fallback to english
+        this.props.msg.lan = "en_US";
+        this.props.msg.pkg = MsgPackage.get("en_US");
+      }
+      return 404;
+    }
+
+    const resp = await this.filesClient.download(url);
+    let isValid = true;
+    if (resp == null || resp.data == null) {
+      isValid = false;
+    } else if (!isValidLanPack(resp.data)) {
+      isValid = false;
+    }
+
+    if (!isValid) {
+      this.props.msg.lan = "en_US";
+      this.props.msg.pkg = MsgPackage.get("en_US");
+      this.props.login.preferences.lanPackURL = "";
+      return 400;
+    }
+    this.props.msg.lan = resp.data.lan;
+    this.props.msg.pkg = Map<string, string>(resp.data);
+    return resp.status;
+  };
+
   updateBrowser = (prevState: ICoreState): ICoreState => {
     return {
       ...prevState,

src/client/web/src/components/topbar.tsx

@@ -68,8 +68,6 @@ export class TopBar extends React.Component<Props, State, {}> {
         this.props.update(updater().updatePanes);
         this.props.update(updater().updateAdmin);
         this.props.update(updater().updateUI);
-
-        updater().initLan();
         this.props.update(updater().updateMsg);
       });
   };

src/client/web/src/i18n/msger.ts

@@ -1,4 +1,4 @@
-import { Map } from "immutable";
+import { Map, Set } from "immutable";
 
 import { msgs as enMsgs } from "./en_US";
 import { msgs as cnMsgs } from "./zh_CN";
@@ -25,3 +25,127 @@ export class MsgPackage {
     }
   }
 }
+
+export function isValidLanPack(lanPackObject: any): boolean {
+  const topLevelkeys = Set(Object.keys(lanPackObject));
+  if (!topLevelkeys.has("lan") && !topLevelkeys.has("pkg")) {
+    return false;
+  }
+
+  const gotKeys = Set(Object.keys(lanPackObject.pkg));
+  let missingKeys = Set<string>();
+  lanPackKeys.forEach((key: string) => {
+    if (!gotKeys.has(key)) {
+      missingKeys = missingKeys.add(key);
+    }
+  });
+
+  // TODO: provide better error report?
+  if (missingKeys.size > 0) {
+    console.error(missingKeys);
+  }
+  return missingKeys.size > 0;
+}
+
+export const lanPackKeys = Set<string>([
+  "stateMgr.cap.fail",
+  "browser.upload.del.fail",
+  "browser.folder.add.fail",
+  "browser.del.fail",
+  "browser.move.fail",
+  "browser.share.add.fail",
+  "browser.share.del.fail",
+  "browser.share.del",
+  "browser.share.add",
+  "browser.share.title",
+  "browser.share.desc",
+  "browser.upload.title",
+  "browser.upload.desc",
+  "browser.folder.name",
+  "browser.folder.add",
+  "browser.upload",
+  "browser.delete",
+  "browser.paste",
+  "browser.select",
+  "browser.deselect",
+  "browser.selectAll",
+  "browser.stop",
+  "browser.location",
+  "browser.item.title",
+  "browser.used",
+  "panes.close",
+  "login.logout.fail",
+  "login.username",
+  "login.captcha",
+  "login.pwd",
+  "login.login",
+  "login.logout",
+  "settings.pwd.notSame",
+  "settings.pwd.empty",
+  "settings.pwd.notChanged",
+  "update",
+  "settings.pwd.old",
+  "settings.pwd.new1",
+  "settings.pwd.new2",
+  "settings",
+  "settings.chooseLan",
+  "settings.pwd.update",
+  "admin",
+  "update.ok",
+  "update.fail",
+  "delete.fail",
+  "delete.ok",
+  "delete",
+  "spaceLimit",
+  "uploadLimit",
+  "downloadLimit",
+  "add.fail",
+  "add.ok",
+  "role.delete.warning",
+  "user.id",
+  "user.add",
+  "user.name",
+  "user.role",
+  "user.password",
+  "add",
+  "admin.users",
+  "role.add",
+  "role.name",
+  "admin.roles",
+  "zhCN",
+  "enUS",
+  "move.fail",
+  "share.404.title",
+  "share.404.desc",
+  "upload.404.title",
+  "upload.404.desc",
+  "detail",
+  "refresh",
+  "refresh-hint",
+  "pane.login",
+  "pane.admin",
+  "pane.settings",
+  "logout.confirm",
+  "unauthed",
+  "err.tooManyUploads",
+  "login.role",
+  "user.profile",
+  "user.downLimit",
+  "user.upLimit",
+  "user.spaceLimit",
+  "cfg.siteName",
+  "cfg.siteDesc",
+  "cfg.bg",
+  "cfg.bg.url",
+  "cfg.bg.repeat",
+  "cfg.bg.pos",
+  "cfg.bg.align",
+  "reset",
+  "bg.url.alert",
+  "bg.pos.alert",
+  "bg.align.alert",
+  "prefer.theme",
+  "prefer.theme.url",
+  "settings.customLan",
+  "settings.lanPackURL",
+]);