gistfile1.txt

var SCRIPT_NAME = 'Broken Url Checker';
var LOG_LEVEL = 'error'; //change this to debug if you want more logging
var NOTIFY = ['sdao@propelmarketing.com'];
var SPREADSHEET_PREFIX = 'Broken Url Details'; // A timestamp is appended 
var NOTIFY_ON_ERROR = ['sdao@propelmarketing.com'];
var STRIP_QUERY_STRING = true; //Drop everything after the ? in the url to speed things up
var REPORT_ON_REDIRECTS = true; //If you want to be able to track 301s and 302, turn this on
var VALID_RESPONSE_CODES = [200,301,302];
var URLS_CHECKED_FILE_NAME = 'UrlsAlreadyChecked-'+AdWordsApp.currentAccount().getCustomerId()+'.json';
var DONE_LABEL_PREFIX = 'All Urls Checked - ';
 
function main() {
  MccApp.accounts().withLimit(50).executeInParallel('checkUrls', 'reportResults'); 
}
   
function checkUrls() {
  try {
    debug('Processing account: '+AdWordsApp.currentAccount().getName());
     
    debug('Checking to see if we finished processing for today.');
    var dateStr = Utilities.formatDate(new Date(), AdWordsApp.currentAccount().getTimeZone(), 'yyyy-MM-dd');
    var finishedLabelName = DONE_LABEL_PREFIX+dateStr;
    var alreadyDone = AdWordsApp.labels().withCondition("Name = '"+finishedLabelName+"'").get().hasNext();
    if(alreadyDone) {
      info('All urls have been checked for today.');
      return '';
    }
    var labelIter = AdWordsApp.labels().withCondition("Name STARTS_WITH '"+DONE_LABEL_PREFIX+"'").get();
    while(labelIter.hasNext()) { labelIter.next().remove(); }
     
    debug('Checking for previous urls.');
    var urlsAlreadyChecked = readValidUrlsFromJSON();
    info('Found '+Object.keys(urlsAlreadyChecked).length+' urls already checked.');
     
    var toReportKeywords = [];
    var toReportAds = [];
    var didExitEarly = false;
    var keywordUrls = getKeywordUrls();
    for(var key in keywordUrls) {
      var kwRow = keywordUrls[key];
      var url = cleanUrl(kwRow.DestinationUrl);
      verifyUrl(kwRow,url,urlsAlreadyChecked,toReportKeywords);
      if(shouldExitEarly()) { didExitEarly = true; break; }
    }
    if(!didExitEarly) {
      var adUrls = getAdUrls();
      for(var i in adUrls) {
        var adRow = adUrls[i];
        if(adRow.CreativeDestinationUrl) {
          var url = cleanUrl(adRow.CreativeDestinationUrl);
          verifyUrl(adRow,url,urlsAlreadyChecked,toReportAds);
        }
        if(adRow.ImageAdUrl) {
          var url = cleanUrl(adRow.CreativeDestinationUrl);
          verifyUrl(adRow,url,urlsAlreadyChecked,toReportAds);
        }
        if(shouldExitEarly()) { didExitEarly = true; break; }
      }
    }
    var returnData = {
      accountId : AdWordsApp.currentAccount().getCustomerId(),
      accountName : AdWordsApp.currentAccount().getName(),
      uniqueUrlsChecked : Object.keys(urlsAlreadyChecked).length,
      brokenKeywords : toReportKeywords,
      brokenAds : toReportAds,
      didExitEarly : didExitEarly
    };
    if(didExitEarly) {
      writeValidUrlsToJSON(urlsAlreadyChecked);
    } else {
      AdWordsApp.createLabel(finishedLabelName, 'Label created by '+SCRIPT_NAME, '#C0C0C0');
      writeValidUrlsToJSON({});
    }
    return JSON.stringify(returnData);
  } catch(e) {
    // This error handling helps notify you when things don't work out well.
    error(e);
    if(MailApp.getRemainingDailyQuota() >= NOTIFY_ON_ERROR.length) {
      var acctName = AdWordsApp.currentAccount().getName();
      var acctId = AdWordsApp.currentAccount().getCustomerId();
      for(var i in NOTIFY_ON_ERROR) {
        info('Sending mail to: '+NOTIFY_ON_ERROR[i]);
        MailApp.sendEmail(NOTIFY_ON_ERROR[i], 'ERROR: '+SCRIPT_NAME+' - '+acctName+' - ('+acctId+')', e);
      }
    } else {
      error('Out of email quota for the day. Sending a carrier pigeon.'); 
    }
    return '';
  }
   
  function shouldExitEarly() {
    return (AdWordsApp.getExecutionInfo().getRemainingTime() < 60);
  } 
 
  function verifyUrl(row,url,urlsAlreadyChecked,toReport) {
    if(!urlsAlreadyChecked[url]) {
      info('Checking url: ' + url);
      var urlCheckResults = checkUrl(url);
      if(!urlCheckResults.isValid) {
        row['cleanUrl'] = url;
        row['responseCode'] = urlCheckResults.responseCode;
        toReport.push(row);
      }
      urlsAlreadyChecked[url] = urlCheckResults;
    } else {
      if(!urlsAlreadyChecked[url].isValid) {
        row['cleanUrl'] = url;
        row['responseCode'] = urlsAlreadyChecked[url].responseCode;
        toReport.push(row);
      }
    }
  }
 
  function checkUrl(url) {
    var retVal = { responseCode : -1, isValid: false };
    var httpOptions = {
      muteHttpExceptions:true,
      followRedirects:(!REPORT_ON_REDIRECTS)
    };
    try {
      retVal.responseCode = UrlFetchApp.fetch(url, httpOptions).getResponseCode();
      retVal.isValid = isValidResponseCode(retVal.responseCode);
    } catch(e) {
      warn(e.message);
      //Something is wrong here, we should know about it.
      retVal.isValid = false;
    }
    return retVal;
  }
   
  function isValidResponseCode(resp) {
    return (VALID_RESPONSE_CODES.indexOf(resp) >= 0);
  }
   
  //Clean the url of query strings and valuetrack params  
  function cleanUrl(url) {
    if(STRIP_QUERY_STRING) {
      if(url.indexOf('?')>=0) {
        url = url.split('?')[0];
      }
    }
    if(url.indexOf('{') >= 0) {
      //Let's remove the value track parameters
      url = url.replace(/\{[^\}]*\}/g,'');
    }
    return url;
  }
   
  //Use the reporting API to pull this information because it is super fast.
  //The documentation for this is here: http://goo.gl/IfMb31
  function getKeywordUrls() {
    var OPTIONS = { includeZeroImpressions : true };
    var cols = ['CampaignId','CampaignName',
                'AdGroupId','AdGroupName',
                'Id','KeywordText','KeywordMatchType',
                'IsNegative','DestinationUrl','Impressions'];
    var report = 'KEYWORDS_PERFORMANCE_REPORT';
    var query = ['select',cols.join(','),'from',report,
                 'where CampaignStatus = ACTIVE',
                 'and AdGroupStatus = ENABLED',
                 'and Status = ACTIVE',
                 'during','LAST_7_DAYS'].join(' ');
    var results = {};
    var reportIter = AdWordsApp.report(query, OPTIONS).rows();
    while(reportIter.hasNext()) {
      var row = reportIter.next();
      if(row.IsNegative === 'true') { continue; }
      if(!row.DestinationUrl) { continue; }
      if(row.KeywordMatchType === 'Exact') {
        row.KeywordText = ['[',row.KeywordText,']'].join('');
      } else if(row.KeywordMatchType === 'Phrase') {
        row.KeywordText = ['"',row.KeywordText,'"'].join('');
      }
      var rowKey = [row.CampaignId,row.AdGroupId,row.Id].join('-');
      results[rowKey] = row;
    }
    return results; 
  }
   
  //Use the reporting API to pull this information because it is super fast.
  //The documentation for this is here: http://goo.gl/8RHTBj
  function getAdUrls() {
    var OPTIONS = { includeZeroImpressions : true };
    var cols = ['CampaignId','CampaignName',
                'AdGroupId','AdGroupName',
                'AdType',
                'Id','Headline','Description1','Description2','DisplayUrl',
                'CreativeDestinationUrl','ImageAdUrl','Impressions'];
    var report = 'AD_PERFORMANCE_REPORT';
    var query = ['select',cols.join(','),'from',report,
                 'where CampaignStatus = ACTIVE',
                 'and AdGroupStatus = ENABLED',
                 'and Status = ENABLED',
                 'during','TODAY'].join(' ');
    var results = {};
    var reportIter = AdWordsApp.report(query, OPTIONS).rows();
    while(reportIter.hasNext()) {
      var row = reportIter.next();
      if(!row.CreativeDestinationUrl || !row.ImageAdUrl) { continue; }
      var rowKey = [row.CampaignId,row.AdGroupId,row.Id].join('-');
      if(row.ImageAdUrl !== '--') { 
        row.ImageAdUrl = ('https://tpc.googlesyndication.com/pageadimg/imgad?id='+row.ImageAdUrl); 
      } else {
        row.ImageAdUrl = '';
      }
      results[rowKey] = row;
    }
    return results;
  }
   
  //This function quickly writes the url data to a file
  //that can be loaded again for the next run
  function writeValidUrlsToJSON(toWrite) {
    var file = getFile(URLS_CHECKED_FILE_NAME,false);
    file.setContent(JSON.stringify(toWrite));
  }
   
  //And this loads that stored file and converts it to an object
  function readValidUrlsFromJSON() {
    var file = getFile(URLS_CHECKED_FILE_NAME,false);
    var fileData = file.getBlob().getDataAsString();
    if(fileData) {
      return JSON.parse(fileData);
    } else {
      return {};
    }
  }
}
 
//This is the callback function that collects all the data from the scripts
//that were run in parallel on each account. More details can be found here:
// http://goo.gl/BvOPZo
function reportResults(responses) {
  var summaryEmailData = [];
  var dateTimeStr = Utilities.formatDate(new Date(), AdWordsApp.currentAccount().getTimeZone(), 'yyyy-MM-dd HH:m:s');
  var spreadsheetName = SPREADSHEET_PREFIX+' - '+dateTimeStr;
  for(var i in responses) {
    if(!responses[i].getReturnValue()) { continue; }
    var res = JSON.parse(responses[i].getReturnValue());
    var sheetUrl = writeResultsToSpreadsheet(res,spreadsheetName);
    summaryEmailData.push({accountId:res.accountId,
                           accountName:res.accountName,
                           didExitEarly:res.didExitEarly,
                           uniqueUrlsChecked:res.uniqueUrlsChecked,
                           numBrokenKeywords:res.brokenKeywords.length,
                           numBrokenAds:res.brokenAds.length,
                           sheetUrl: sheetUrl});
  }
  if(summaryEmailData.length > 0) {
    sendSummaryEmail(summaryEmailData);
  }
   
  function writeResultsToSpreadsheet(res,name) {
    var file = getFile(name,true);
    var spreadsheet;
    var maxRetries = 0;
    while(maxRetries < 3) {
      try {
        spreadsheet = SpreadsheetApp.openById(file.getId());
        break;
      } catch(e) {
        maxRetries++;
        Utilities.sleep(1000);
      }
    }
    if(!spreadsheet) { throw 'Could not open file: '+name; }
    if(spreadsheet.getSheetByName('Sheet1')) {
      spreadsheet.getSheetByName('Sheet1').setName(res.accountId);
    }
    var sheet = spreadsheet.getSheetByName(res.accountId);
    if(!sheet) {
      sheet = spreadsheet.insertSheet(res.accountId, spreadsheet.getSheets().length);
    }
    var toWrite = [['Type','Clean Url','Response Code','Campaign Name','AdGroup Name','Text','Full Url']];
    for(var i in res.brokenKeywords) {
      var row = res.brokenKeywords[i];
      toWrite.push(['Keyword',
                    row.cleanUrl,
                    row.responseCode,
                    row.CampaignName,
                    row.AdGroupName,
                    row.KeywordText,
                    row.DestinationUrl]); 
    }
    for(var i in res.brokenAds) {
      var row = res.brokenAds[i];
      toWrite.push([row.AdType,
                    row.cleanUrl,
                    row.responseCode,
                    row.CampaignName,
                    row.AdGroupName,
                    (row.Headline) ? [row.Headline,row.Description1,row.Description2,row.DisplayUrl].join('|') : '',
                    (row.CreativeDestinationUrl) ? row.CreativeDestinationUrl : row.ImageAdUrl]);
    }
    var lastRow = sheet.getLastRow();
    var numRows = sheet.getMaxRows();
    if((numRows-lastRow) < toWrite.length) {
      sheet.insertRowsAfter(lastRow,toWrite.length-numRows+lastRow);
    }
    var range = sheet.getRange(lastRow+1,1,toWrite.length,toWrite[0].length);
    range.setValues(toWrite);
    if((sheet.getMaxColumns() - sheet.getLastColumn()) > 0) {
      sheet.deleteColumns(sheet.getLastColumn()+1, sheet.getMaxColumns() - sheet.getLastColumn());
    }
    file = DriveApp.getFileById(spreadsheet.getId());
    try {
      file.setSharing(DriveApp.Access.ANYONE_WITH_LINK, DriveApp.Permission.VIEW);
    } catch(e) {
      file.setSharing(DriveApp.Access.DOMAIN_WITH_LINK, DriveApp.Permission.VIEW);
    }
    //This gives you a link directly to the spreadsheet sheet.
    return (spreadsheet.getUrl() + '#gid=' + sheet.getSheetId());
  }
   
  //This function builds the summary email and sends it to the people in
  //the NOTIFY list
  function sendSummaryEmail(summaryEmailData) {
    var subject = SCRIPT_NAME+' Summary Results';
    var body = subject;
    var htmlBody = '<html><body>'+subject;
    htmlBody += '<br/ >Should strip query strings: '+STRIP_QUERY_STRING;
    htmlBody += '<br/ >Report on redirects: '+REPORT_ON_REDIRECTS;
    htmlBody += '<br/ >Valid response codes: '+VALID_RESPONSE_CODES;
    htmlBody += '<br/ ><br/ >';
    htmlBody += '<table border="1" width="95%" style="border-collapse:collapse;">';
    htmlBody += '<tr>';
    htmlBody += '<td align="left"><b>Acct Id</b></td>';
    htmlBody += '<td align="left"><b>Acct Name</b></td>';
    htmlBody += '<td align="left"><b>Exited Early</b></td>';
    htmlBody += '<td align="center"><b>Unique Urls Checked</b></td>';
    htmlBody += '<td align="center"><b># Broken Keyword Urls</b></td>';
    htmlBody += '<td align="center"><b># Broken Ad Urls</b></td>';
    htmlBody += '<td align="center"><b>Full Report</b></td>';
    htmlBody += '</tr>';
    for(var i in summaryEmailData) {
      var row = summaryEmailData[i];
      htmlBody += '<tr><td align="left">'+ row.accountId +
                 '</td><td align="left">' + row.accountName + 
                 '</td><td align="left">' + row.didExitEarly + 
                 '</td><td align="center">' + row.uniqueUrlsChecked + 
                 '</td><td align="center">' + row.numBrokenKeywords + 
                 '</td><td align="center">' + row.numBrokenAds + 
                 '</td><td align="left"><a href="'+row.sheetUrl+'">' + 'Show Details' + 
                 '</a></td></tr>';
    }
    htmlBody += '</table>';
    htmlBody += '<br/ >';
    htmlBody += Utilities.formatDate(new Date(),AdWordsApp.currentAccount().getTimeZone(),'MMMM dd, yyyy @ hh:mma z');
    htmlBody += '.  Completed. '+Object.keys(summaryEmailData).length+' Accounts checked.';
    htmlBody += '</body></html>';
    var options = { htmlBody : htmlBody };
    for(var i in NOTIFY) {
      MailApp.sendEmail(NOTIFY[i], subject, body, options);
    }
  }
}
 
//This function finds a given file on Google Drive
//If it does not exist, it creates a new file
//if isSpreadsheet is set, it will create a new spreadsheet
//otherwise, it creates a text file.
function getFile(fileName,isSpreadsheet) {
  var maxRetries = 0;
  var errors = [];
  while(maxRetries < 3) {
    try {
      var fileIter = DriveApp.getFilesByName(fileName);
      if(!fileIter.hasNext()) {
        info('Could not find file: '+fileName+' on Google Drive. Creating new file.');
        if(isSpreadsheet) {
          return SpreadsheetApp.create(fileName);
        } else {
          return DriveApp.createFile(fileName,'');
        }
      } else {
        return fileIter.next();
      }
    } catch(e) {
      errors.push(e);
      maxRetries++;
      Utilities.sleep(1000);
    }
  }
  if(maxRetries == 3) {
    throw errors.join('. ');
  }
}
 
//Some functions to help with logging
var LOG_LEVELS = { 'error':1, 'warn':2, 'info':3, 'debug':4 };
function error(msg) { if(LOG_LEVELS['error'] <= LOG_LEVELS[LOG_LEVEL]) { log('ERROR',msg); } }
function warn(msg)  { if(LOG_LEVELS['warn']  <= LOG_LEVELS[LOG_LEVEL]) { log('WARN' ,msg); } }
function info(msg)  { if(LOG_LEVELS['info']  <= LOG_LEVELS[LOG_LEVEL]) { log('INFO' ,msg); } }
function debug(msg) { if(LOG_LEVELS['debug'] <= LOG_LEVELS[LOG_LEVEL]) { log('DEBUG',msg); } }
function log(type,msg) { Logger.log(type + ' - ' + msg); }