feat: improve download anonymized repository

src/core/AnonymizedFile.ts

@@ -289,14 +289,9 @@ export default class AnonymizedFile {
                 this.sha(),
                 this.repository.getToken(),
               ]);
-              // const hostName = new URL(config.STREAMER_ENTRYPOINT).hostname;
-              // const ipHost = await this.cacheableLookup.lookupAsync(hostName);
-              got
+              const resStream = got
                 .stream(join(config.STREAMER_ENTRYPOINT, "api"), {
                   method: "POST",
-                  // lookup: this.cacheableLookup.lookup,
-                  // host: ipHost.address,
-                  // dnsCache: this.cacheableLookup,
                   json: {
                     sha,
                     token,
@@ -308,7 +303,8 @@ export default class AnonymizedFile {
                     anonymizerOptions: anonymizer.opt,
                   },
                 })
-                .on("error", () => {
+                .on("error", (err) => {
+                  span.recordException(err);
                   handleError(
                     new AnonymousError("file_not_found", {
                       object: this,
@@ -316,12 +312,17 @@ export default class AnonymizedFile {
                     }),
                     res
                   );
-                })
-                .pipe(res)
-                .on("close", () => {
-                  span.end();
-                  resolve();
                 });
+              resStream.pipe(res);
+              res.on("close", () => {
+                span.end();
+                resolve();
+              });
+              res.on("error", (err) => {
+                reject(err);
+                span.recordException(err);
+                span.end();
+              });
               return;
             }
 

src/core/source/GitHubDownload.ts

@@ -16,7 +16,7 @@ export default class GitHubDownload extends GitHubBase {
     super(data);
   }
 
-  private async _getZipUrl(): Promise<OctokitResponse<unknown, 302>> {
+  public async getZipUrl(): Promise<OctokitResponse<unknown, 302>> {
     const oct = octokit(await this.data.getToken());
     return oct.rest.repos.downloadZipballArchive({
       owner: this.data.organization,
@@ -32,11 +32,11 @@ export default class GitHubDownload extends GitHubBase {
     try {
       let response: OctokitResponse<unknown, number>;
       try {
-        response = await this._getZipUrl();
+        response = await this.getZipUrl();
       } catch (error) {
         span.recordException(error as Error);
-        throw new AnonymousError("repo_not_accessible", {
-          httpStatus: 404,
+        throw new AnonymousError("repo_not_found", {
+          httpStatus: (error as any).status || 404,
           object: this.data,
           cause: error as Error,
         });

src/core/source/GitHubStream.ts

@@ -194,7 +194,8 @@ export default class GitHubStream extends GitHubBase {
         });
         output.push(...this.tree2Tree(data.tree, parentPath));
       } catch (error) {
-        if ((error as any).status == 404) {
+        console.log(error);
+        if ((error as any).status == 409 || (error as any).status == 404) {
           // empty repo
           data = { tree: [] };
         } else {

src/server/routes/repository-public.ts

@@ -2,6 +2,8 @@ import { promisify } from "util";
 import * as express from "express";
 import * as stream from "stream";
 import config from "../../config";
+import got from "got";
+import { join } from "path";
 
 import { getRepo, getUser, handleError } from "./route-utils";
 import AnonymousError from "../../core/AnonymousError";
@@ -26,17 +28,15 @@ router.get(
       const repo = await getRepo(req, res);
       if (!repo) return;
 
+      let user: User | undefined = undefined;
+      try {
+        user = await getUser(req);
+      } catch (_) {}
+
       let download = false;
-      const conference = await repo.conference();
-      if (conference) {
-        download =
-          conference.quota.size > -1 &&
-          !!config.ENABLE_DOWNLOAD &&
-          repo.source.type == "GitHubDownload";
-      }
       if (
-        repo.size.storage < config.FREE_DOWNLOAD_REPO_SIZE * 1024 &&
-        repo.source.type == "GitHubDownload"
+        (!!config.ENABLE_DOWNLOAD && !!config.STREAMER_ENTRYPOINT) ||
+        user?.isAdmin === true
       ) {
         download = true;
       }
@@ -48,6 +48,44 @@ router.get(
         });
       }
 
+      await repo.countView();
+
+      if (config.STREAMER_ENTRYPOINT) {
+        // use the streamer service
+        const token = await repo.getToken();
+        const anonymizer = repo.generateAnonymizeTransformer("");
+        res.attachment(`${repo.repoId}.zip`);
+        const reqStream = got
+          .stream(join(config.STREAMER_ENTRYPOINT, "api/download"), {
+            method: "POST",
+            json: {
+              token,
+              repoFullName: repo.model.source.repositoryName,
+              commit: repo.model.source.commit,
+              branch: repo.model.source.branch,
+              repoId: repo.repoId,
+              anonymizerOptions: anonymizer.opt,
+            },
+          })
+          .on("error", () => {
+            handleError(
+              new AnonymousError("file_not_found", {
+                object: this,
+                httpStatus: 404,
+              }),
+              res
+            );
+          });
+        reqStream.pipe(res);
+        res.on("close", () => {
+          reqStream.destroy();
+        });
+        res.on("error", () => {
+          reqStream.destroy();
+        });
+        return;
+      }
+
       res.attachment(`${repo.repoId}.zip`);
 
       // cache the file for 6 hours
@@ -125,7 +163,7 @@ router.get(
             throw new AnonymousError(
               repo.model.statusMessage
                 ? repo.model.statusMessage
-                : "repository_not_available",
+                : "repository_not_accessible",
               {
                 object: repo,
                 httpStatus: 500,
@@ -142,17 +180,7 @@ router.get(
       }
 
       let download = false;
-      const conference = await repo.conference();
-      if (conference) {
-        download =
-          conference.quota.size > -1 &&
-          !!config.ENABLE_DOWNLOAD &&
-          repo.source.type == "GitHubDownload";
-      }
-      if (
-        repo.size.storage < config.FREE_DOWNLOAD_REPO_SIZE * 1024 &&
-        repo.source.type == "GitHubDownload"
-      ) {
+      if (!!config.ENABLE_DOWNLOAD && !!config.STREAMER_ENTRYPOINT) {
         download = true;
       }
 
@@ -162,7 +190,7 @@ router.get(
       } catch (_) {}
       res.json({
         url: redirectURL,
-        download,
+        download: download || user?.isAdmin === true,
         lastUpdateDate: repo.model.source.commitDate
           ? repo.model.source.commitDate
           : repo.model.anonymizeDate,

src/streamer/route.ts

@@ -1,11 +1,86 @@
+import { promisify } from "util";
+import * as stream from "stream";
 import * as express from "express";
 import GitHubStream from "../core/source/GitHubStream";
-import { AnonymizeTransformer, isTextFile } from "../core/anonymize-utils";
+import {
+  anonymizePath,
+  AnonymizeTransformer,
+  isTextFile,
+} from "../core/anonymize-utils";
 import { handleError } from "../server/routes/route-utils";
 import { lookup } from "mime-types";
+import GitHubDownload from "../core/source/GitHubDownload";
+import got from "got";
+import { Parse } from "unzip-stream";
+import archiver = require("archiver");
 
 export const router = express.Router();
 
+router.post(
+  "/download",
+  async (req: express.Request, res: express.Response) => {
+    const token: string = req.body.token;
+    const repoFullName = req.body.repoFullName.split("/");
+    const repoId = req.body.repoId;
+    const branch = req.body.branch;
+    const commit = req.body.commit;
+    const anonymizerOptions = req.body.anonymizerOptions;
+
+    try {
+      const source = new GitHubDownload({
+        repoId,
+        organization: repoFullName[0],
+        repoName: repoFullName[1],
+        commit: commit,
+        getToken: () => token,
+      });
+      const response = await source.getZipUrl();
+      const downloadStream = got.stream(response.url);
+
+      res.on("error", (error) => {
+        console.error(error);
+        downloadStream.destroy();
+      });
+
+      res.on("close", () => {
+        downloadStream.destroy();
+      });
+
+      const archive = archiver("zip", {});
+      downloadStream
+        .pipe(Parse())
+        .on("entry", (entry) => {
+          if (entry.type === "File") {
+            try {
+              const fileName = anonymizePath(
+                entry.path.substring(entry.path.indexOf("/") + 1),
+                anonymizerOptions.terms || []
+              );
+              const anonymizer = new AnonymizeTransformer(anonymizerOptions);
+              anonymizer.opt.filePath = fileName;
+              const st = entry.pipe(anonymizer);
+              archive.append(st, { name: fileName });
+            } catch (error) {
+              entry.autodrain();
+              console.error(error);
+            }
+          } else {
+            entry.autodrain();
+          }
+        })
+        .on("error", (error) => {
+          console.error(error);
+          archive.finalize();
+        })
+        .on("finish", () => {
+          archive.finalize();
+        });
+      archive.pipe(res);
+    } catch (error) {
+      handleError(error, res);
+    }
+  }
+);
 router.post("/", async (req: express.Request, res: express.Response) => {
   req.body = req.body || {};
   const token: string = req.body.token;