feat(batch): port download code to use the batch endpoint

.jshintrc

@@ -1,5 +1,5 @@
 {
-  "esversion": 6,
+  "esversion": 8,
   "node": true,
   "curly": true,
   "eqeqeq": true,

package.json

@@ -9,6 +9,7 @@
   "dependencies": {
     "@hapi/joi": "^16.0.1",
     "async": "^3.1.0",
+    "axios": "^1.2.2",
     "bottleneck": "^2.19.5",
     "combined-stream": "^1.0.7",
     "csv-parse": "^5.0.3",

schema.js

@@ -12,7 +12,8 @@ module.exports = Joi.object().keys({
       dataHost: Joi.string(),
       s3Options: Joi.string(),
       adminLookup: Joi.boolean(),
-      missingFilesAreFatal: Joi.boolean().default(false).truthy('yes').falsy('no')
+      missingFilesAreFatal: Joi.boolean().default(false).truthy('yes').falsy('no'),
+      token: Joi.string().required(true),
     }).unknown(false)
   }).unknown(true)
 }).unknown(true);

test/schema.js

@@ -142,6 +142,7 @@ tape( 'unknown config fields should throw error', function(test) {
     imports: {
       openaddresses: {
         datapath: 'this is the datapath',
+        token: 'abc',
         unknown: 'value'
       }
     }
@@ -153,11 +154,12 @@ tape( 'unknown config fields should throw error', function(test) {
 
 });
 
-tape( 'configuration with only datapath should not throw error', function(test) {
+tape( 'configuration with only datapath & token should not throw error', function(test) {
   const config = {
     imports: {
       openaddresses: {
-        datapath: 'this is the datapath'
+        datapath: 'this is the datapath',
+        token: 'abc'
       }
     }
   };
@@ -172,6 +174,7 @@ tape( 'valid configuration should not throw error', function(test) {
     imports: {
       openaddresses: {
         datapath: 'this is the datapath',
+        token: 'abc',
         adminLookup: false,
         files: ['file 1', 'file 2']
       }
@@ -188,6 +191,7 @@ tape( 'unknown children of imports should not throw error', function(test) {
     imports: {
       openaddresses: {
         datapath: 'this is the datapath',
+        token: 'abc',
         adminLookup: false,
         files: ['file 1', 'file 2']
       },
@@ -205,6 +209,7 @@ tape( 'unknown children of root should not throw error', function(test) {
     imports: {
       openaddresses: {
         datapath: 'this is the datapath',
+        token: 'abc',
         adminLookup: false,
         files: ['file 1', 'file 2']
       }

utils/OpenAddressesAPI.js

@@ -0,0 +1,43 @@
+const _ = require('lodash');
+const axios = require('axios');
+const config = require('pelias-config');
+const HOST = 'https://batch.openaddresses.io';
+
+class OpenAddressesAPI {
+  constructor() {
+    this.config = _.get(config.generate(), 'imports.openaddresses', {});
+    this.token = _.get(this.config, 'token');
+  }
+
+  // remove file extensions from 'source'
+  normalize(source) {
+    if (!_.isString(source)) { return source; }
+    return source.replace(/\.[^/.]+$/, '');
+  }
+
+  // return the http url for a specific job id
+  url(job) {
+    return `${HOST}/api/job/${job}/output/source.geojson.gz`;
+  }
+
+  // if the 'validated' mode is enabled (for financial supporters only)
+  isValidatedModeEnabled() {
+    return _.get(this.config, 'validated') === true;
+  }
+
+  async lookup(filename) {
+    // normalize 'source' property
+    // support the 'validated' property for financial supporters
+    const params = {
+      source: this.normalize(filename),
+      layer: 'addresses',
+      validated: this.isValidatedModeEnabled() ? 'true' : 'false'
+    };
+
+    // request extended info and return the first result
+    const versions = await axios.get(`${HOST}/api/data`, { params });
+    return _.isArray(versions.data) && !_.isEmpty(versions.data) ? _.head(versions.data) : {};
+  }
+}
+
+module.exports = OpenAddressesAPI;

utils/download_filtered.js

@@ -1,22 +1,34 @@
 const child_process = require('child_process');
-const config = require( 'pelias-config' ).generate();
+const config = require('pelias-config').generate();
 const async = require('async');
 const fs = require('fs-extra');
+const path = require('path');
 const temp = require('temp');
 const logger = require('pelias-logger').get('openaddresses-download');
 const Bottleneck = require('bottleneck/es5');
 
 function downloadFiltered(config, callback) {
   const targetDir = config.imports.openaddresses.datapath;
+  const errorsFatal = config.get('imports.openaddresses.missingFilesAreFatal');
 
-  fs.ensureDir(targetDir, (err) => {
+  fs.ensureDir(targetDir, async (err) => {
     if (err) {
       logger.error(`error making directory ${targetDir}`, err);
       return callback(err);
     }
 
-    const files = getFiles(config, targetDir, callback);
-    logger.info(`Attempting to download selected data files: ${files.map(file => file.csv)}`);
+    // validate sources
+    const files = config.get('imports.openaddresses.files', []);
+    const sources = await getSources(files);
+    const validSources = sources.filter(source => source.url);
+
+    // respect 'imports.openaddresses.missingFilesAreFatal' setting
+    if (errorsFatal && (sources.length !== validSources.length)) {
+      callback(sources.find(source => source.error)); // return first error
+      return;
+    }
+
+    logger.info(`Attempting to download selected data sources: ${sources.map(source => source.id)}`);
 
     // limit requests to avoid being banned by openaddresses.io
     // current policy is 10 request per minute
@@ -26,95 +38,121 @@ function downloadFiltered(config, callback) {
       minTime: 6000
     };
     const limiter = new Bottleneck(options);
-    const callbackOnLastOne = () => {
+    const done = () => {
       if (limiter.empty()) {
         callback();
       }
     };
-    files.map(file => {
-      limiter.submit(downloadSource, targetDir, file, callbackOnLastOne);
+    validSources.map(source => {
+      limiter.submit(downloadSource, targetDir, source, done);
     });
     process.on('SIGINT', () => {
-      limiter.stop({dropWaitingJobs: true});
+      limiter.stop({ dropWaitingJobs: true });
       process.exit();
     });
   });
 
 }
 
-function getFiles(config, targetDir, main_callback){
-  const errorsFatal = config.get('imports.openaddresses.missingFilesAreFatal');
-  const files = config.imports.openaddresses.files;
-  files.forEach(file => {
-    // sources MUST end with '.csv'
-    if( !file.endsWith('.csv') ){
-      const msg = `invalid source '${file}': MUST end with '.csv'`;
-      logger.warn(msg);
-
-      // respect 'imports.openaddresses.missingFilesAreFatal' setting
-      return main_callback(errorsFatal ? msg : null);
+async function getSources(files) {
+  const OpenAddressesAPI = require('./OpenAddressesAPI');
+  const oa = new OpenAddressesAPI();
+
+  return await Promise.all(files.map(async file => {
+
+    // source definitions previously required a file extension.
+    // please remove file extensions from your ~/pelias.json file
+    // to silence these warning messages.
+    let id = file.replace(/\.[^\/.]+$/, '');
+    if (id !== file) {
+      logger.warn(`source definitions no longer require a file extension '${file}'`);
     }
-  });
-  return files.map(file => {
-    const source = file.replace('.csv', '.zip');
-    const name = file.replace('.csv', '').replace(/\//g,'-');
-    return {
-      csv: file,
-      url: `https://results.openaddresses.io/latest/run/${source}`,
-      zip: temp.path({prefix: name, dir: targetDir, suffix: '.zip'})
-    };
-  });
+
+    // lookup the source using the OpenAddresses API
+    // to find the most current job id and ensure validity
+    const version = await oa.lookup(id);
+    const valid = (version && version.job);
+
+    // invalid source
+    if (!valid) {
+      return { id, error: `invalid source '${file}'` };
+    }
+
+    // valid source
+    return { id, url: oa.url(version.job) };
+  }));
 }
 
-function downloadSource(targetDir, file, main_callback) {
+function downloadSource(targetDir, source, done) {
+
   const errorsFatal = config.get('imports.openaddresses.missingFilesAreFatal');
+  const token = config.get('imports.openaddresses.token');
   const referer = config.get('imports.openaddresses.dataReferer') || 'https://pelias-results.openaddresses.io';
-  logger.info(`Downloading ${file.csv}`);
+  logger.info(`Downloading ${source.id}`);
+
+  const outFile = path.join(targetDir, `${source.id}.geojson`);
+  const tmpFile = temp.path({
+    prefix: source.id.replace(new RegExp(path.sep, 'g'), '-'),
+    dir: targetDir,
+    suffix: '.gz'
+  });
 
   async.series(
     [
-      // download the zip file into the temp directory
+      // download the compressed file into the temp directory
       (callback) => {
-        logger.debug(`downloading ${file.url}`);
+        logger.debug(`downloading ${source.url}`);
         const flags = [
           '--request GET',                // HTTP GET
           '--silent',                     // be quiet
           '--location',                   // follow redirects
           '--fail',                       // exit with a non-zero code for >=400 responses
           '--write-out "%{http_code}"',   // print status code to STDOUT
           `--referer ${referer}`,         // set referer header
-          `--output ${file.zip}`,         // set output filepath
+          `--output ${tmpFile}`,          // set output filepath
           '--retry 5',                    // retry this number of times before giving up
           '--retry-connrefused',          // consider ECONNREFUSED as a transient error
-          '--retry-delay 5'               // sleep this many seconds between retry attempts
+          '--retry-delay 5',              // sleep this many seconds between retry attempts
+          `-H 'Authorization: Bearer ${token}'` // authorization token
         ].join(' ');
 
         // the `--fail*` flags cause an error to be returned as the first arg with `error.code`
         // as the process exit status, the `-w "%{http_code}"` flag writes the HTTP status to STDOUT.
-        child_process.exec(`curl ${flags} ${file.url}`, (error, stdout) => {
+        child_process.exec(`curl ${flags} ${source.url}`, (error, stdout) => {
           if (!error) { return callback(); }
 
           // provide a more user-friendly error message
           error.message = `cURL request failed, HTTP status: ${stdout}, exit code: ${error.code}`;
           callback(error);
         });
       },
-      // unzip file into target directory
+      // decompress file into target directory
       (callback) => {
-        logger.debug(`unzipping ${file.zip} to ${targetDir}`);
-        child_process.exec(`unzip -o -qq -d ${targetDir} ${file.zip}`, callback);
+        logger.debug(`decompress ${tmpFile} to ${outFile}`);
+        child_process.exec(`
+          mkdir -p ${path.dirname(outFile)};
+          gzip -c ${tmpFile} > ${outFile};
+        `, (error, stdout) => {
+          if (!error) { return callback(); }
+
+          // provide a more user-friendly error message
+          error.message = `decompress failed, ${stdout}`;
+          callback(error);
+        });
       },
-      // delete the temp downloaded zip file
-      fs.remove.bind(null, file.zip)
     ],
-    function(err) {
+    (err) => {
       if (err) {
-          logger.warn(`failed to download ${file.url}: ${err}`);
+        logger.warn(`failed to download ${source.url}: ${err}`);
       }
 
+      // ensure temp files are cleaned up
+      if (fs.existsSync(tmpFile)) { fs.unlinkSync(tmpFile); }
+
       // honour 'imports.openaddresses.missingFilesAreFatal' setting
-      main_callback(errorsFatal ? err : null);
-    });
+      done(errorsFatal ? err : null);
+    }
+  );
 }
 
 module.exports = downloadFiltered;