public ReviewerPageData ParsePeopleData(string response)
{
ReviewerPageData reviewerData = new ReviewerPageData();
// Loading HTML Map
HtmlDocument map = new HtmlDocument();
map.LoadHtml(response);
// Reaching User Name
reviewerData.reviewerName = map.DocumentNode.SelectSingleNode("//div[@class='person-name']").InnerText;
// Creating list of reviews for this user
reviewerData.reviews = new List <UserReviewSummary> ();
try
{
// Reaching Reviewed Apps
foreach (var reviewedApp in map.DocumentNode.SelectNodes("//div[@class='card-list']/div[@class='card one-rationale square-cover apps medium']"))
{
// App Id Node
var appIdValue = reviewedApp.SelectSingleNode(".//a[@class='card-click-target']").Attributes["href"].Value.Replace("/store/apps/details?id=", "");
// App Name Node
var appNameValue = reviewedApp.SelectSingleNode(".//meta[@itemprop='name']").Attributes["content"].Value;
// Stars Rated
var starsRating = String.Empty + reviewedApp.SelectSingleNode(".//a[@class='reason-body']").InnerText.Where(t => Char.IsNumber(t)).First();
// Adding each review to it's list
reviewerData.reviews.Add(new UserReviewSummary()
{
appId = appIdValue,
appName = appNameValue,
stars = Int32.Parse(starsRating)
});
}
}
catch (Exception ex)
{
Console.WriteLine("Error => " + ex.Message);
}
return(reviewerData);
}
static void Main(string[] args)
{
// Checking for Input Parameters
if (args == null || args.Length != 1)
{
Console.WriteLine("Incorrect number of arguments received. Expected One");
System.Environment.Exit(-100);
}
// Human Readable Variable
string inputFile = args[0];
// Checking if the Input file received exists
if (!File.Exists(inputFile))
{
Console.WriteLine(String.Format("Received input file does not exist : {0}", inputFile));
System.Environment.Exit(-101);
}
// App Status
_appStatus = new Dictionary <String, AppStatusModel> ();
// Creating Instance of Database Manager
MongoDBWrapper mongoDB = new MongoDBWrapper();
string fullServerAddress = String.Join(":", Consts.MONGO_SERVER, Consts.MONGO_PORT);
mongoDB.ConfigureDatabase(Consts.MONGO_USER, Consts.MONGO_PASS, Consts.MONGO_AUTH_DB, fullServerAddress, Consts.MONGO_TIMEOUT, Consts.MONGO_DATABASE, Consts.MONGO_COLLECTION);
// Creating Instance of Parser
PlayStoreParser dataParser = new PlayStoreParser();
goto PeopleData;
using (WebRequests httpClient = new WebRequests())
{
// Minor Configuration of the Http Client - Ensures that the requests response will be in english
// By doing so, we have no problems parsing the dates to their proper formats
httpClient.Headers.Add(Consts.ACCEPT_LANGUAGE);
httpClient.Host = Consts.HOST;
httpClient.Encoding = "utf-8";
httpClient.EncodingDetection = WebRequests.CharsetDetection.DefaultCharset;
// Iterating over File Lines (App Urls) - To Extract Data, Not The Reviews Yet.
foreach (string appUrl in File.ReadAllLines(inputFile))
{
// Logging Progress
Console.WriteLine("\n => Processing App : " + appUrl);
// Executing Http Get Request for the Apps's Data - With max of 5 Retries
String appDataResponse = String.Empty;
int currentRetry = 0;
do
{
// Http Get
appDataResponse = httpClient.Get(appUrl);
} while (String.IsNullOrWhiteSpace(appDataResponse) || ++currentRetry <= _maxRetries);
// Sanity Check
if (String.IsNullOrWhiteSpace(appDataResponse))
{
Console.WriteLine("\t\t.Error - Failed to find page of app : " + appUrl + ". Skipping it");
continue;
}
Console.WriteLine("\t\t.Page Found. Firing Parser");
// Parsing App Data
AppModel appData = dataParser.ParseAppPage(appDataResponse, appUrl);
// Checking If this app is on the database already
if (mongoDB.AppProcessed(appUrl))
{
Console.WriteLine("\t\t.Previous Version of App Found. Updating It");
mongoDB.UpdateRecord(appData, "Url", appData.Url);
// Updating App Status
_appStatus.Add
(
appData.Url,
new AppStatusModel()
{
appId = appData.Url.Replace(Consts.PLAY_STORE_PREFIX, String.Empty),
appUrl = appData.Url,
appName = appData.Name,
status = "Updated"
}
);
}
else
{
Console.WriteLine("\t\t.No Previous Version of the App Found. Adding to Database");
mongoDB.Insert <AppModel> (appData);
// Updating App Status
_appStatus.Add
(
appData.Url,
new AppStatusModel()
{
appId = appData.Url.Replace(Consts.PLAY_STORE_PREFIX, String.Empty),
appUrl = appData.Url,
appName = appData.Name,
status = "Inserted"
}
);
}
}
}
Reviews:
// Next Phase: Parse Reviews of those Apps
Console.WriteLine("\n => Parsing Complete. Obtaining Reviews");
// Iterating again over app urls to parse the reviews from this app
foreach (string appUrl in File.ReadAllLines(inputFile))
{
// Reaching App Id
string appID = _appStatus[appUrl].appId;
// Reviews-Break-Parsing Flag
bool shouldContinueParsing = true;
// Parsing Review Pages from the apps
for (int currentPage = 1; /* no stop condition */; currentPage++)
{
// Getting Reviews Data Bundle
string reviewsData = ReviewsWrapper.GetAppReviews(appID, currentPage);
// Checking for Blocking Situation
if (String.IsNullOrEmpty(reviewsData))
{
Console.WriteLine("Blocked by Play Store. Sleeping process for 10 minutes before retrying.");
// Thread Wait for 10 Minutes
Thread.Sleep(10 * 60 * 1000);
}
// Checking for "No Reviews" app
if (reviewsData.Length < 50)
{
Console.WriteLine("No Reviews left for this app. Skipping");
break;
}
// Normalizing Response to Proper HTML
reviewsData = ReviewsWrapper.NormalizeResponse(reviewsData);
// Iterating over Parsed Reviews
foreach (var review in dataParser.ParseReviews(reviewsData))
{
// Adding App Data to the review
review.appID = _appStatus[appUrl].appId;
review.appName = _appStatus[appUrl].appName;
review.appURL = _appStatus[appUrl].appUrl;
// Incrementing Reviews Count for this app
_appStatus[appUrl].reviews++;
// Adding Review Object to Database
review.timestamp = DateTime.Now;
// Building Query to check for duplicated review
var duplicatedReviewQuery = Query.EQ("permalink", review.permalink);
// Checking for duplicated review before inserting it
if (mongoDB.FindMatch <AppReview> (duplicatedReviewQuery, 1, 0, Consts.REVIEWS_COLLECTION).Count() == 0)
{
// Inserting Review into MongoDB
mongoDB.Insert <AppReview> (review, Consts.REVIEWS_COLLECTION);
}
else
{
Console.WriteLine("Duplicated Review. Skipping App");
// When this happens, there are no more reviews to be parsed
shouldContinueParsing = false; // Skipping this apps processing
}
}
// Hiccup to avoid Blocking problems
Console.WriteLine("Parsed Reviews: " + _appStatus[appUrl].reviews);
Thread.Sleep(new Random().Next(14000, 21000));
if (!shouldContinueParsing)
{
break;
}
}
}
PeopleData:
Console.WriteLine("\n\n => Processing People Data");
Console.WriteLine("\nSimulating Google Login Using Selenium.");
using (var firefoxDriver = new FirefoxDriver())
{
// Navigating to Dummy Url - One that I Know that well be asked for a login
firefoxDriver.Navigate().GoToUrl("https://play.google.com/store/people/details?id=101242565951396343093");
// Reaching Login Fields
var loginField = firefoxDriver.FindElementById("Email");
var passwordField = firefoxDriver.FindElementById("Passwd");
var btnSignIn = firefoxDriver.FindElementById("signIn");
// Sending Credentials to the browser
loginField.SendKeys("YOUREMAIL");
passwordField.SendKeys("YOURPASSWORD");
btnSignIn.Click();
string lastPeople = "https://play.google.com/store/people/details?id=115037241907660526856";
bool shouldcontinue = false;
// Processing Reviewers Data
foreach (string peopleUrl in mongoDB.FindPeopleUrls())
{
// Skipping until last link
if (peopleUrl == lastPeople)
{
shouldcontinue = true;
}
if (!shouldcontinue)
{
continue;
}
// Navigating To the Reviewer Page
firefoxDriver.Navigate().GoToUrl(peopleUrl);
// Executing Get Request for the Reviewer page on Google Play
string reviewerPage = firefoxDriver.PageSource;
// Extracting Reviewer Data from the Page
ReviewerPageData reviewerData = dataParser.ParsePeopleData(reviewerPage);
// Adding Url to the model
reviewerData.reviewerUrl = peopleUrl;
// Inserting it to the database - If no previous record of this Reviewer is found
if (!mongoDB.IsReviewerOnDatabase(peopleUrl))
{
mongoDB.Insert <ReviewerPageData> (reviewerData, "ReviewersData");
}
}
}
// End of Processing + Console Feedback
Console.WriteLine("\n\n == Processing Summary ==");
foreach (var status in _appStatus.Select(t => t.Value))
{
// Message
string cMessage = "=> App : {0} - Status {1} - Reviews : {2}";
Console.WriteLine(String.Format(cMessage, status.appName, status.status, status.reviews));
}
Console.ReadLine();
}