diff --git a/plugins/catalog-backend/src/ingestion/LocationReaders.ts b/plugins/catalog-backend/src/ingestion/LocationReaders.ts index 8ec575d6ec..545465cde0 100644 --- a/plugins/catalog-backend/src/ingestion/LocationReaders.ts +++ b/plugins/catalog-backend/src/ingestion/LocationReaders.ts @@ -27,6 +27,7 @@ import { EntityPolicyProcessor } from './processors/EntityPolicyProcessor'; import { FileReaderProcessor } from './processors/FileReaderProcessor'; import { GithubReaderProcessor } from './processors/GithubReaderProcessor'; import { GithubApiReaderProcessor } from './processors/GithubApiReaderProcessor'; +import { GitlabApiReaderProcessor } from './processors/GitlabApiReaderProcessor'; import { GitlabReaderProcessor } from './processors/GitlabReaderProcessor'; import { LocationRefProcessor } from './processors/LocationEntityProcessor'; import * as result from './processors/results'; @@ -59,6 +60,7 @@ export class LocationReaders implements LocationReader { new FileReaderProcessor(), new GithubReaderProcessor(), new GithubApiReaderProcessor(), + new GitlabApiReaderProcessor(), new GitlabReaderProcessor(), new YamlProcessor(), new EntityPolicyProcessor(entityPolicy), diff --git a/plugins/catalog-backend/src/ingestion/processors/GitlabApiReaderProcessor.test.ts b/plugins/catalog-backend/src/ingestion/processors/GitlabApiReaderProcessor.test.ts new file mode 100644 index 0000000000..a429a0e6fb --- /dev/null +++ b/plugins/catalog-backend/src/ingestion/processors/GitlabApiReaderProcessor.test.ts @@ -0,0 +1,94 @@ +/* + * Copyright 2020 Spotify AB + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +import { GitlabApiReaderProcessor } from './GitlabApiReaderProcessor'; + +describe('GitlabApiReaderProcessor', () => { + it('should build raw api', () => { + const processor = new GitlabApiReaderProcessor(); + + const tests = [ + { + target: + 'https://gitlab.com/groupA/teams/teamA/subgroupA/repoA/-/blob/branch/my/path/to/file.yaml', + url: new URL( + 'https://gitlab.com/api/v4/projects/12345/repository/files/my%2Fpath%2Fto%2Ffile.yaml?ref=branch', + ), + err: undefined, + }, + { + target: + 'https://gitlab.example.com/groupA/teams/teamA/subgroupA/repoA/-/blob/branch/my/path/to/file.yaml', + url: new URL( + 'https://gitlab.example.com/api/v4/projects/12345/repository/files/my%2Fpath%2Fto%2Ffile.yaml?ref=branch', + ), + err: undefined, + }, + { + target: + 'https://gitlab.com/groupA/teams/teamA/repoA/-/blob/branch/my/path/to/file.yaml', // Repo not in subgroup + url: new URL( + 'https://gitlab.example.com/api/v4/projects/12345/repository/files/my%2Fpath%2Fto%2Ffile.yaml?ref=branch', + ), + err: undefined, + }, + { + target: + 'https://gitlab.com/groupA/teams/teamA/repoA/-/blob/branch/my/path/', + url: null, + err: + 'Incorrect url: https://gitlab.com/groupA/teams/teamA/repoA/-/blob/branch/my/path/, Error: Gitlab url does not end in .ya?ml', + }, + ]; + + for (const test of tests) { + if (test.err) { + expect(() => processor.buildRawUrl(test.target, 12345)).toThrowError( + test.err, + ); + } else { + expect(processor.buildRawUrl(test.target, 12345)).toEqual(test.url); + } + } + }); + + it('should return request options', () => { + const tests = [ + { + token: '0123456789', + expect: { + headers: { + 'PRIVATE-TOKEN': '0123456789', + }, + }, + }, + { + token: '', + expect: { + headers: { + 'PRIVATE-TOKEN': '', + }, + }, + }, + ]; + + for (const test of tests) { + process.env.GITLAB_PRIVATE_TOKEN = test.token; + const processor = new GitlabApiReaderProcessor(); + expect(processor.getRequestOptions()).toEqual(test.expect); + } + }); +}); diff --git a/plugins/catalog-backend/src/ingestion/processors/GitlabApiReaderProcessor.ts b/plugins/catalog-backend/src/ingestion/processors/GitlabApiReaderProcessor.ts new file mode 100644 index 0000000000..6964640eb4 --- /dev/null +++ b/plugins/catalog-backend/src/ingestion/processors/GitlabApiReaderProcessor.ts @@ -0,0 +1,133 @@ +/* + * Copyright 2020 Spotify AB + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +import { LocationSpec } from '@backstage/catalog-model'; +import fetch, { RequestInit, HeadersInit } from 'node-fetch'; +import * as result from './results'; +import { LocationProcessor, LocationProcessorEmit } from './types'; + +export class GitlabApiReaderProcessor implements LocationProcessor { + private privateToken: string = process.env.GITLAB_PRIVATE_TOKEN || ''; + + getRequestOptions(): RequestInit { + const headers: HeadersInit = { 'PRIVATE-TOKEN': '' }; + if (this.privateToken !== '') { + headers['PRIVATE-TOKEN'] = this.privateToken; + } + + const requestOptions: RequestInit = { + headers, + }; + + return requestOptions; + } + + async readLocation( + location: LocationSpec, + optional: boolean, + emit: LocationProcessorEmit, + ): Promise { + if (location.type !== 'gitlab/api') { + return false; + } + + try { + const projectID = await this.getProjectID(location.target); + const url = this.buildRawUrl(location.target, projectID); + const response = await fetch(url.toString(), this.getRequestOptions()); + if (response.ok) { + const data = await response.buffer(); + emit(result.data(location, data)); + } else { + const message = `${location.target} could not be read as ${url}, ${response.status} ${response.statusText}`; + if (response.status === 404) { + if (!optional) { + emit(result.notFoundError(location, message)); + } + } else { + emit(result.generalError(location, message)); + } + } + } catch (e) { + const message = `Unable to read ${location.type} ${location.target}, ${e}`; + emit(result.generalError(location, message)); + } + return true; + } + + // convert https://gitlab.com/groupA/teams/teamA/subgroupA/repoA/-/blob/branch/filepath + // to https://gitlab.com/api/v4/projects//repository/files/filepath?ref=branch + buildRawUrl(target: string, projectID: Number): URL { + try { + const url = new URL(target); + + const branchAndfilePath = url.pathname.split('/-/blob/')[1]; + + if (!branchAndfilePath.match(/\.ya?ml$/)) { + throw new Error('Gitlab url does not end in .ya?ml'); + } + + const [branch, ...filePath] = branchAndfilePath.split('/'); + + url.pathname = [ + '/api/v4/projects', + projectID, + 'repository/files', + encodeURIComponent(filePath.join('/')), + 'raw', + ].join('/'); + url.search = `?ref=${branch}`; + + return url; + } catch (e) { + throw new Error(`Incorrect url: ${target}, ${e}`); + } + } + + async getProjectID(target: string): Promise { + const url = new URL(target); + + if ( + // absPaths to gitlab files should contain /-/blob + // ex: https://gitlab.com/groupA/teams/teamA/subgroupA/repoA/-/blob/branch/filepath + !url.pathname.match(/\/\-\/blob\//) + ) { + throw new Error('Please provide full path to yaml file from Gitlab'); + } + try { + const repo = url.pathname.split('/-/blob/')[0]; + + // Find ProjectID from url + // convert 'https://gitlab.com/groupA/teams/teamA/subgroupA/repoA/-/blob/branch/filepath' + // to 'https://gitlab.com/api/v4/projects/groupA%2Fteams%2FsubgroupA%2FteamA%2Frepo' + const repoIDLookup = new URL( + `${url.protocol + url.hostname}/api/v4/projects/${encodeURIComponent( + repo.replace(/^\//, ''), + )}`, + ); + const response = await fetch( + repoIDLookup.toString(), + this.getRequestOptions(), + ); + const projectIDJson = await response.json(); + const projectID: Number = projectIDJson.id; + + return projectID; + } catch (e) { + throw new Error(`Could not get Gitlab ProjectID for: ${target}, ${e}`); + } + } +}