public static void Run(frmMain parentForm, Book book)
{
form = parentForm;
IsolatedStorageModule.Setup(false);
currentBook = book;
existingReviewIds = CrawlUtil.getNewContext().Reviews.Where(r => r.bookId == currentBook.id).Select(r => r.id).ToList();
baseUri = "http://www.goodreads.com/api/reviews_widget_iframe?did=DEVELOPER_ID&format=html&isbn=" + book.isbn + "&links=660&min_rating=&review_back=fff&stars=000&text=000";
c = new Crawler(new Uri(baseUri),
new HtmlDocumentProcessor(), // Process html
new ReviewIFrameDumperStep());
// Custom step to visualize crawl
c.MaximumThreadCount = 1; //** 2012-09-03 changed this from 2 to 1 in hopes that it'll fix the unknown (seemingly) random crashes.
c.MaximumCrawlDepth = 1;
c.ExcludeFilter = CrawlUtil.ExtensionsToSkip;
c.AdhereToRobotRules = false;
// Begin crawl
c.Crawl();
}
public void Process(Crawler crawler, PropertyBag propertyBag)
{
HtmlDocument htmlDoc = propertyBag["HtmlDoc"].Value as HtmlDocument;
if (htmlDoc == null)
{
return; //this happens with HTTP errors etc. We don't bother with retrying or anything like that :(
}
HtmlNode doc = htmlDoc.DocumentNode;
lock (this)
{
//there are 30 authors per page.
//easier method is to get the count from the title
if (propertyBag.ResponseUri.OriginalString == CrawlFavouriteAuthors.baseUri)
{
var node = doc.SelectSingleNode("//title");
if (node != null)
{
string s = node.InnerText.Trim();
User.numFavouriteAuthors = Convert.ToInt32(CrawlUtil.extractNumberFromString(s.Substring(s.IndexOf(" authors"))));
}
else
{
User.numFavouriteAuthors = 0;
}
}
CrawlFavouriteAuthors.form.appendLineToLog(User.userIdString + ":: updated to have " + User.numFavouriteAuthors + " favourite authors.");
}
}
public void Process(Crawler crawler, PropertyBag propertyBag)
{
HtmlDocument htmlDoc = propertyBag["HtmlDoc"].Value as HtmlDocument;
if (htmlDoc == null)
{
return; //this happens with HTTP errors etc. We don't bother with retrying or anything like that :(
}
int maxPage = CrawlUtil.getMaxReviewIFramePageNumber(htmlDoc);
//add other review pages if at base (uri) page
if (propertyBag.ResponseUri.ToString() == CrawlReviewIFrame.baseUri && maxPage != -1)
{
int maxPageToCrawl = maxPage;
string uri = "";
//if (maxPage > 10) commenting this out means to crawl all review pages.
//{
// maxPageToCrawl = 10;
//}
for (int i = 2; i <= maxPageToCrawl; i++)
{
uri = "http://www.goodreads.com/api/reviews_widget_iframe?did=DEVELOPER_ID&format=html&isbn=" + CrawlReviewIFrame.currentBook.isbn + "&links=660&min_rating=&page=" + i + "&review_back=fff&stars=000&text=000";
crawler.AddStep(new Uri(uri), 0);
}
CrawlReviewIFrame.form.appendLineToLog("Crawling " + maxPageToCrawl + " pages of reviews for " + CrawlReviewIFrame.currentBook.getShortTitle());
}
//only process review iframe pages
if (!propertyBag.ResponseUri.OriginalString.StartsWith(CrawlReviewIFrame.baseUri.Substring(0, 100)))
{
return;
}
lock (this)
{
string currentPage = "0";
var currentPageNode = htmlDoc.DocumentNode.SelectSingleNode("//*[@class='current']");
if (currentPageNode != null)
{
currentPage = currentPageNode.InnerText.Trim();
}
var reviews = htmlDoc.DocumentNode.SelectNodes("//*[@itemtype='http://schema.org/Review']");
if (reviews == null || reviews.Count == 0)
{
return;
}
//**do stuff to handle dupes properly
// -_-
//current method just saves each review one by one and ignores all errors when trying to save.
//this also means all reviews are attempted to be saved again no matter what :(
GoodReadsCrawlerEntities context = CrawlUtil.getNewContext();
foreach (var r in reviews)
{
string reviewUrl;
int reviewId = -1;
Match match;
var reviewLinkNode = r.SelectSingleNode(".//div[@class='gr_review_text']/link[@itemprop='url']");
DateTime publishDate = DateTime.MinValue;
short starRating = 0;
Review toAdd = new Review();
if (reviewLinkNode != null)
{
reviewUrl = reviewLinkNode.GetAttributeValue("href", "null");
match = regReview.Match(reviewUrl);
if (Int32.TryParse(match.Groups[1].Value, out reviewId))
{
if (CrawlReviewIFrame.existingReviewIds.Contains(reviewId))
{
continue;
}
var node = r.SelectSingleNode(".//span[@class='gr_review_date']");
if (node != null)
{
DateTime.TryParse(node.InnerText, out publishDate);
}
node = r.SelectSingleNode(".//span[@class='gr_rating']");
if (node != null)
{
starRating = CrawlUtil.countStarsFromString(node.InnerText);
}
toAdd.id = reviewId;
toAdd.bookId = CrawlReviewIFrame.currentBook.id;
toAdd.publishDate = publishDate;
toAdd.starRating = starRating;
toAdd.foundOnPage = Int32.Parse(currentPage);
toAdd.maxPage = maxPage;
context.Reviews.AddObject(toAdd);
}
try
{
context.SaveChanges();
}
catch (Exception ex)
{
context.Reviews.Detach(toAdd);
CrawlReviewIFrame.form.appendLineToLog(ex.Message);
if (ex.InnerException != null)
{
CrawlReviewIFrame.form.appendLineToLog("\t" + ex.InnerException.Message);
}
}
}
}
CrawlReviewIFrame.form.appendLineToLog("Added " + reviews.Count + " on page " + currentPage + " of " + maxPage + " for " + CrawlReviewIFrame.currentBook.getShortTitle());
}
}
public void Process(Crawler crawler, PropertyBag propertyBag)
{
//add pages only if at base uri page
if (propertyBag.ResponseUri.ToString() == "http://www.goodreads.com/list/show/1.Best_Books_Ever?page=" + CrawlList.FromPage)
{
string uri = "";
for (int i = CrawlList.FromPage + 1; i <= CrawlList.ToPage; i++)
{
uri = "http://www.goodreads.com/list/show/1.Best_Books_Ever?page=" + i;
crawler.AddStep(new Uri(uri), 0);
CrawlList.form.appendLineToLog("also crawling " + uri);
}
}
//only process list pages
if (!propertyBag.ResponseUri.OriginalString.StartsWith("http://www.goodreads.com/list/show/1.Best_Books_Ever"))
{
return;
}
var s = propertyBag["HtmlDoc"].Value;
HtmlDocument htmlDoc = propertyBag["HtmlDoc"].Value as HtmlDocument;
if (htmlDoc != null)
{
lock (this)
{
var books = htmlDoc.DocumentNode.SelectNodes("//tr[@itemtype='http://schema.org/Book\']");
if (books == null || books.Count == 0)
{
return;
}
GoodReadsCrawlerEntities context = CrawlUtil.getNewContext();
foreach (var b in books)
{
string title = "null";
string authorName = "null";
var titleURLNode = b.SelectSingleNode(".//*[@class='bookTitle']");
var authorURLNode = b.SelectSingleNode(".//*[@class='authorName']");
string titleUrl = "null";
string authorUrl = "null";
Match match;
string bookId = "-1";
string authorId = "-1";
Book newBook = null;
Author author = null;
if (titleURLNode != null && authorURLNode != null)
{
titleUrl = titleURLNode.GetAttributeValue("href", "null");
match = regBook.Match(titleUrl);
bookId = match.Groups[1].Value;
title = titleURLNode.InnerText.Trim();
authorUrl = authorURLNode.GetAttributeValue("href", "null");
match = regAuthor.Match(authorUrl);
authorId = match.Groups[1].Value;
authorName = authorURLNode.InnerText.Trim();
author = CrawlUtil.createOrGetAuthor(context, Int32.Parse(authorId), authorName);
newBook = CrawlUtil.createOrGetBook(context, Int32.Parse(bookId), title);
newBook.Author = author;
//author.Book = newBook;
}
context.SaveChanges();
}
CrawlList.form.appendLineToLog("added/updated " + books.Count + " books and their authors");
}
}
}
public void Process(Crawler crawler, PropertyBag propertyBag)
{
HtmlDocument htmlDoc = propertyBag["HtmlDoc"].Value as HtmlDocument;
if (htmlDoc == null)
{
return; //this happens with HTTP errors etc. We don't bother with retrying or anything like that :(
}
//only process the review page
if (propertyBag.ResponseUri.OriginalString != CrawlReviews.baseUri)
{
return;
}
lock (this)
{
GoodReadsCrawlerEntities context = CrawlUtil.getNewContext();
Review review = CrawlUtil.getReview(context, ReviewId);
if (review == null)
{
return; //this should never happen
}
//userId int Checked
//userIdString varchar(256) Checked
//reviewContent varchar(MAX) Checked
//starRating smallint Checked
//publishDate date Checked
//recommendedFor varchar(MAX) Checked
//numComments int Checked
HtmlNode doc = htmlDoc.DocumentNode;
int userId = -1;
string userIdString = null;
string userName = null;
string reviewContent = null;
short starRating = -1;
DateTime publishDate;
//string recommendedFor = null;
int numComments = -1;
var reviewAuthorNode = doc.SelectSingleNode("//a[@itemprop='author']");
if (reviewAuthorNode != null)
{
userIdString = reviewAuthorNode.GetAttributeValue("href", null);
userIdString = CrawlUtil.extractUserIdStringFromUrl(userIdString); //null if error
userId = CrawlUtil.extractUserIdFromString(userIdString); //-1 or 0 if error
userName = reviewAuthorNode.InnerText.Trim(); //empty if error
if (userIdString != null && userId > 0 && !String.IsNullOrEmpty(userName))
{
var user = CrawlUtil.createOrGetUser(context, userId, userIdString, userName);
review.User = user;
review.userIdString = userIdString;
}
//<a href="/user/show/52663-mer" class="userReview" itemprop="author">Mer</a>
}
var reviewContentNode = doc.SelectSingleNode("//div[@itemprop='reviewBody']");
if (reviewContentNode != null)
{
review.reviewContent = reviewContentNode.InnerText.Trim();
}
var starRatingNode = doc.SelectSingleNode("//div[@class='rating']/span[@class='value-title']");
if (starRatingNode != null)
{
short.TryParse(starRatingNode.GetAttributeValue("title", ""), out starRating);
review.starRating = starRating;
//<span class="value-title" title="5"></span>
}
var publishDateNode = doc.SelectSingleNode("//div[@class='right dtreviewed greyText smallText']/span[@class='value-title']");
if (publishDateNode != null)
{
DateTime.TryParse(publishDateNode.GetAttributeValue("title", ""), out publishDate);
review.publishDate = publishDate;
//<span class="value-title" title="2007-04-28"></span>
}
var recomendedForNode = doc.SelectSingleNode("//span[text()='Recommended for:']");
if (recomendedForNode != null)
{
review.recommendedFor = recomendedForNode.ParentNode.LastChild.InnerText.Trim();
/*
* <div>
* <span class="">Recommended for:</span>
* enviornmentalists, nurturers, parents and children who want to discuss empathy and reciprocity
* </div>
*/
}
//var numCommentsNode = doc.SelectSingleNode("");
//if (numCommentsNode != null)
//{
// /*
// * <h2 class="brownBackground">
// * <div class="extraHeader">
// * <a href="#comment_form" rel="nofollow">Post a comment »</a>
// * </div>Comments
// * <span class="smallText">
// (showing
// 1-5
// of
// 5)
// </span>
// * ...
// * </h2>
// */
//}
context.SaveChanges();
CrawlReviews.form.appendLineToLog("Added review " + review.id + " by user " + review.User.name);
}
}
public void Process(Crawler crawler, PropertyBag propertyBag)
{
HtmlDocument htmlDoc = propertyBag["HtmlDoc"].Value as HtmlDocument;
if (htmlDoc == null)
{
return; //this happens with HTTP errors etc. We don't bother with retrying or anything like that :(
}
HtmlNode doc = htmlDoc.DocumentNode;
//on page 1, add other pages for user
if (propertyBag.ResponseUri.OriginalString == CrawlListAndVotes.baseUri)
{
/*
*
* <div>
* <span class="previous_page disabled">« previous</span>
* <em class="current">1</em>
* <a rel="next" href="/list/user_votes/1045275-natasha?page=2">2</a>
* <a href="/list/user_votes/1045275-natasha?page=3">3</a>
* <a href="/list/user_votes/1045275-natasha?page=4">4</a>
* <a href="/list/user_votes/1045275-natasha?page=5">5</a>
* <a class="next_page" rel="next" href="/list/user_votes/1045275-natasha?page=2">next »</a>
* </div>
*/
var node = doc.SelectSingleNode(".//a[@class='next_page' and @rel='next']");
if (node != null)
{
try
{
var x = node.PreviousSibling.PreviousSibling;
int maxPage = Int32.Parse(x.InnerText.Trim());
string uri;
for (int i = 2; i <= maxPage; i++)
{
uri = "http://www.goodreads.com/list/user_votes/" + User.userIdString + "?page=" + i;
crawler.AddStep(new Uri(uri), 0);
CrawlListAndVotes.form.appendLineToLog(uri);
}
}
catch (Exception ex)
{
CrawlListAndVotes.form.appendLineToLog(ex.Message);
}
}
}
lock (this)
{
GoodReadsCrawlerEntities context = CrawlUtil.getNewContext();
foreach (var listNode in doc.SelectNodes(".//div[@class='cell']"))
{
List l = null;
string title = null;
var titleNode = listNode.SelectSingleNode(".//a[@class='listTitle']");
if (titleNode != null)
{
title = titleNode.InnerText.Trim();
}
if (title != null)
{
l = CrawlUtil.createOrGetList(context, title);
}
else
{
continue;
}
/*
* 296 books
* —
* 994 voters
*/
var statsNode = listNode.SelectSingleNode(".//div[@class='listFullDetails']");
if (statsNode != null)
{
string s = statsNode.InnerText.Replace("\n", "").Trim();
l.numBooks = Convert.ToInt32(CrawlUtil.extractNumberFromString(s));
s = s.Substring(s.IndexOf("books"));
l.numVoters = Convert.ToInt32(CrawlUtil.extractNumberFromString(s));
}
User u = CrawlUtil.getUser(context, User.id);
u.Lists.Add(l);
try
{
context.SaveChanges();
CrawlListAndVotes.count++;
}
catch (Exception ex)
{
User.Lists.Remove(l);
//this just prints out to check an inner exception which is a dupe PK error
//CrawlListAndVotes.form.appendLineToLog(ex.Message);
}
}
CrawlListAndVotes.form.appendLineToLog(User.userIdString + ":: " + CrawlListAndVotes.count + " lists added");
}
}
public void Process(Crawler crawler, PropertyBag propertyBag)
{
HtmlDocument htmlDoc = propertyBag["HtmlDoc"].Value as HtmlDocument;
if (htmlDoc == null)
{
return; //this happens with HTTP errors etc. We don't bother with retrying or anything like that :(
}
HtmlNode doc = htmlDoc.DocumentNode;
lock (this)
{
GoodReadsCrawlerEntities context = CrawlUtil.getNewContext();
HtmlNodeCollection nodes;
HtmlNode node;
//update user's status changes: private (default 0), author (default 0), or username
var url = propertyBag.ResponseUri.AbsoluteUri;
if (url != CrawlUserProfile.baseUri) //user is author or has changed useridstring
{
if (url == "http://www.goodreads.com/") //this means the user's profile no longer exists
{
CrawlUserProfile.form.appendLineToLog(string.Format("User {0} no longer exists."
, User.userIdString
));
User.IsPrivate = true;
}
if (url.Contains("/author/"))
{
User.IsAuthor = true;
User.authorUrl = url;
}
if (url.Contains("/show/")) //both users and authors can change usernames
{
//when users change their username it can be extracted from the new url.
if (User.IsAuthor != true)
{
User.userIdString = CrawlUtil.extractUserIdStringFromUrl(url);
}
else //if an author has changed username, then this cannot be detected from the authorurl (to which we are redirected)
{
//search for the new username using the user's id. e.g. for links to /user/show/37868189
node = doc.SelectSingleNode(".//a[starts-with(@href, '/user/show/" + User.id + "')]");
if (node != null)
{
var IdStringToExtract = node.GetAttributeValue("href", "");
User.userIdString = CrawlUtil.extractUserIdStringFromUrl(IdStringToExtract);
}
}
}
CrawlUserProfile.form.appendLineToLog(string.Format("User {0} updated with status IsAuthor = {1}| {2}; IsPrivate = {3}"
, User.userIdString
, User.IsAuthor
, User.authorUrl
, User.IsPrivate
));
}
//name
node = doc.SelectSingleNode("//h1//text()[normalize-space()]");
if (node != null)
{
User.name = CrawlUtil.extractNameFromString(node.InnerText);
//inner text for user: "******"
// for author: "Derek White"
}
/*
* <div class="leftContainer">
* <div class="leftAlignedImage" style="overflow: hidden; width: 110px;">
* <a href="/photo/user/3255548-ah" rel="nofollow" title="AH">
* <img alt="AH" src="http://d.gr-assets.com/users/1275413869p3/3255548.jpg" />
* </a>
* <div class="smallText">
* <a href="/review/list/3255548?sort=rating&view=reviews">874 ratings</a>
* <a href="#" onclick="Element.toggle('ratingDistribution3255548');; new Ajax.Updater('ratingDistribution3255548', '/user/rating_distribution/3255548', {asynchronous:true, evalScripts:true, method:'get', onComplete:function(request){return false;}, parameters:'authenticity_token=' + encodeURIComponent('dlcB28CHfXju2vqnShahQlNLoL76d9c6QNZMYZI332g=')}); return false;">(3.82 avg)</a>
* <div class="floatingBox" style="display:none; width: 400px;" id="ratingDistribution3255548"></div>
* <br/>
* <a href="/review/list/3255548?sort=review&view=reviews">1218 reviews</a>
* <br />
* <a href="/photo/user/3255548-ah" rel="nofollow">more photos (3)</a>
* <br/>
* <br/>
#<a href="/user/best_reviewers?country=CA&duration=a">10 best reviewers</a>
* <br/>
#<a href="/user/top_reviewers?country=CA&duration=a">36 top reviewers</a>
*
* </div>
* </div>
* </div>
*
* 196 ratings
* (3.29 avg)
* 115 reviews
*
#10 best reviewers
#36 top reviewers
*/
//numRatings
//numReviews
//avgRating
//badges
//EXCEPT badges, this code works for both user and author pages
nodes = doc.SelectNodes(".//div[@class='leftContainer']//div[@class='smallText']//text()[normalize-space()]");
if (nodes == null)
{
//private profiles still have this data but in a different HTML layout. If this 'different layout' is found
//then we assume this is a private profile.
User.IsPrivate = true;
CrawlUserProfile.form.appendLineToLog(string.Format("User {0} profile is deemed private."
, User.userIdString
));
return;
}
if (nodes != null)
{
int badgeNum = 1;
//to get numerical values and badges
foreach (var n in nodes)
{
string inner = n.InnerText.Trim();;
//if text begins with "//" then it's script text and we want to skip.
if (inner.StartsWith(@"//"))
{
continue;
}
//if text begins with "#" then it's a badge
if (inner.StartsWith("#"))// && n.NextSibling != null)
{
switch (badgeNum)
{
case 1:
User.badge1 = inner;
break;
case 2:
User.badge2 = inner;
break;
case 3:
User.badge3 = inner;
break;
case 4:
User.badge4 = inner;
break;
case 5:
User.badge5 = inner;
break;
}
badgeNum++;
}
else
{
decimal d = CrawlUtil.extractNumberFromString(inner);
if (d != -1)
{
if (inner.Contains("avg")) //author pages use "avg rating" which matches both "rating" and "avg" - so we match "avg" first
{
User.avgRating = d;
}
else if (inner.Contains("rating"))
{
User.numRatings = Convert.ToInt32(d);
}
else if (inner.Contains("review"))
{
User.numReviews = Convert.ToInt32(d);
}
}
}
}
}
//to get the 'badges' for authors
if (User.IsAuthor == true)
{
nodes = doc.SelectNodes(".//div[@class='leftContainer']//div[@id='topListSection']//text()[normalize-space()]");
if (nodes != null)
{
int badgeNum = 1;
foreach (var n in nodes)
{
string inner = n.InnerText.Trim();
if (inner.StartsWith("#"))// && n.NextSibling != null)
{
switch (badgeNum)
{
case 1:
User.badge1 = inner;
break;
case 2:
User.badge2 = inner;
break;
case 3:
User.badge3 = inner;
break;
case 4:
User.badge4 = inner;
break;
case 5:
User.badge5 = inner;
break;
}
badgeNum++;
}
}
}
}
//<a href="/friend/user/104320-erin-beck" rel="nofollow">Erin’s Friends (4)</a>
//<a rel="nofollow" href="/friend/user/3094317-tori-smexybooks-smexys-sidekick">(Tori-Smexybooks)’s Friends (1,505)</a>
//numFriends
//Works for both users and authors
node = doc.SelectSingleNode(".//a[@href='/friend/user/" + User.userIdString + "']/text()");
if (node != null)
{
decimal d = CrawlUtil.extractNumberFromString(node.InnerText);
if (d != -1)
{
User.numFriends = Convert.ToInt32(d);
}
}
/* each friend's html
* <div class="left">
* <div class="friendName">
* <a href="/user/show/355607-t-k-kenyon" rel="acquaintance">T.K. Kenyon</a>
* </div>
* 819 books
* <span class="greyText">|</span>
* 2,392 friends
* </div>
*/
//8 friends' summary details
if (CrawlUserProfile.addFriends)
{
nodes = doc.SelectNodes(".//div[@class='left']");
if (nodes != null)
{
foreach (var n in nodes) //each friend
{
Friendship f = new Friendship();
f.userId = this.User.id;
node = n.SelectSingleNode(".//div[@class='friendName']/a");
if (node != null)
{
string attr = node.GetAttributeValue("href", "");
f.friendIdString = CrawlUtil.extractUserIdStringFromUrl(attr);
f.rel = node.GetAttributeValue("rel", "");
}
else
{
continue;
}
node = n.SelectSingleNode("./text()[normalize-space()]"); //number of books
if (node != null)
{
int numBooks = Convert.ToInt32(CrawlUtil.extractNumberFromString(node.InnerText));
if (numBooks != -1)
{
f.friendNumBooks = numBooks;
}
node = node.SelectSingleNode("following-sibling::text()"); //number of friends
if (node != null)
{
int numFriends = Convert.ToInt32(CrawlUtil.extractNumberFromString(node.InnerText));
if (numFriends != -1)
{
f.friendNumFriends = numFriends;
}
}
}
try
{
context.Friendships.AddObject(f);
context.SaveChanges();
}
catch (Exception)
{
context.Friendships.Detach(f);
}
}
}
}
//User.numFollowers
//Users (non-authors) <a class="actionLink" rel="nofollow" href="/user/3094317-tori-smexybooks-smexys-sidekick/followers">319 people are following (Tori-Smexybooks)</a>
//authors <a href="/author_followings?id=6458332&method=get">Lucas Lyndes’s Followers (8)</a>
if (User.IsAuthor == true)
{
node = doc.SelectSingleNode(".//a[starts-with(@href, '/author_followings?')]/text()");
}
else
{
node = doc.SelectSingleNode(".//a[@href='/user/" + User.userIdString + "/followers']/text()");
}
if (node != null)
{
decimal d = CrawlUtil.extractNumberFromString(node.InnerText);
if (d != -1)
{
User.numFollowers = Convert.ToInt32(d);
}
}
//User.numUserIsFollowing - see [done]goodreads-numUserIsFollowing logic
//N/A for authors
if (User.IsAuthor == true)
{
User.numUserIsFollowing = null;
}
else
{
nodes = doc.SelectNodes(".//a[contains(text(),'is Following')]/../../../div[@class='bigBoxBody']//div/a");
if (nodes != null)
{
User.numUserIsFollowing = nodes.Count;
}
}
//see [done]goodreads-quiz logic.html
//User.quizNumCorrect
//User.quizNumQuestions
//User.quizRank
//User.quizRankOutOf
//N/A for authors
if (User.IsAuthor == true)
{
User.quizNumCorrect = null;
User.quizNumQuestions = null;
User.quizRank = null;
User.quizRankOutOf = null;
}
else
{
nodes = doc.SelectNodes(".//div[@id='myQuizStats']//div[@class='infoBoxRowTitle' or @class='infoBoxRowItem']");
if (nodes != null)
{
string s = "";
foreach (var n in nodes)
{
if (n.InnerText.Contains("questions answered"))
{
s = n.NextSibling.NextSibling.InnerText;
User.quizNumQuestions = Convert.ToInt32(CrawlUtil.extractNumberFromString(s));
//CrawlUserProfile.form.appendLineToLog("answered: " + CrawlUtil.extractNumberFromString(s) + " (" + s + ")");
}
else if (n.InnerText.Contains("correct"))
{
s = n.NextSibling.NextSibling.InnerText;
User.quizNumCorrect = Convert.ToInt32(CrawlUtil.extractNumberFromString(s));
//CrawlUserProfile.form.appendLineToLog("correct: " + CrawlUtil.extractNumberFromString(s) + " (" + s + ")");
}
else if (n.InnerText.Contains("ranking"))
{
s = n.NextSibling.NextSibling.InnerText;
User.quizRank = Convert.ToInt32(CrawlUtil.extractNumberFromString(s));
//CrawlUserProfile.form.appendLineToLog("ranking: " + CrawlUtil.extractNumberFromString(s) + " (" + s + ")");
s = s.Substring(s.IndexOf("out of"));
User.quizRankOutOf = Convert.ToInt32(CrawlUtil.extractNumberFromString(s));
//CrawlUserProfile.form.appendLineToLog("of: " + CrawlUtil.extractNumberFromString(s));
}
}
}
}
//User.ReadingChallenges - see [done]goodreads-challenge logic.html
//CHECK if working for authors
if (CrawlUserProfile.addChallenges)
{
nodes = doc.SelectNodes(".//div[@class='challengePic']");
if (nodes != null)
{
foreach (var n in nodes)
{
var challengePic = n.SelectSingleNode(".//img");
if (challengePic != null)
{
string challenge = challengePic.GetAttributeValue("alt", "unknown");
if (challenge != "unknown")
{
ReadingChallenge rc = CrawlUtil.createOrGetChallenge(context, User.id, challenge);
try
{
var stats = n.NextSibling.NextSibling.SelectSingleNode(".//div[@class='bookMeta progressStats']");
if (stats != null)
{
string s = stats.InnerText;
rc.numBooksRead = Convert.ToInt32(CrawlUtil.extractNumberFromString(s));
s = s.Substring(s.IndexOf(" of "));
rc.numBooksTarget = Convert.ToInt32(CrawlUtil.extractNumberFromString(s));
}
else
{
stats = n.NextSibling.NextSibling.SelectSingleNode(".//a[@class='challengeBooksRead']");
if (stats != null)
{
string s = stats.InnerText;
rc.numBooksRead = Convert.ToInt32(CrawlUtil.extractNumberFromString(s));
s = s.Substring(s.IndexOf(" of "));
rc.numBooksTarget = Convert.ToInt32(CrawlUtil.extractNumberFromString(s));
}
}
rc.lastUpdated = DateTime.Now;
context.SaveChanges();
}
catch (Exception ex)
{
context.ReadingChallenges.Detach(rc);
}
}
}
}
}
}
/*
* <a href="/librarian/user/255233-sonic" rel="nofollow">Goodreads librarian</a>
*/
//User.isLibrarian
node = doc.SelectSingleNode(".//a[@href='/librarian/user/" + User.userIdString + "']");
if (node != null && node.InnerText == "Goodreads librarian")
{
User.IsLibrarian = true;
}
else
{
User.IsLibrarian = false;
}
//User.Genres - see [done]goodreads-genres (fav) logic.html
//UNCHECKED for round 5 update
if (CrawlUserProfile.addGenres)
{
nodes = doc.SelectNodes(".//h2[contains(text(),'Favorite Genres')]/../../div[@class='bigBoxBody']//a");
if (nodes != null)
{
foreach (var n in nodes)
{
Genre g = new Genre();
g.name = n.InnerText.Trim();
g.userId = User.id;
try
{
context.AddToGenres(g);
context.SaveChanges();
}
catch (Exception)
{
context.Genres.Detach(g);
}
}
}
}
//User.Activities - see [done]goodreads-updates logic.html
//UNCHECKED for round 5 update
if (CrawlUserProfile.addActivities)
{
nodes = doc.SelectNodes(".//table[@class='tableListReverse friendUpdates']/tr[@class='update' or @class='no_border']");
if (nodes != null)
{
foreach (var n in nodes)
{
if ("update" == n.GetAttributeValue("class", "unknown"))
{
Activity a = new Activity();
try
{
a.userId = User.id;
a.activityHTML = n.InnerHtml.Length > 8000 ? n.InnerHtml.Substring(0, 7999) : n.InnerHtml;
var ts = n.SelectSingleNode("following-sibling::tr//a[@class='updatedTimestamp']");
a.activityTimestampString = ts.InnerText;
a.retrievedAt = DateTime.Now;
context.AddToActivities(a);
context.SaveChanges();
}
catch (Exception ex)
{
context.Activities.Detach(a);
}
}
}
}
}
//separate function/class User.numFavouriteAuthors
//separate function/class User.Groups
//separate function/class User.Lists
//separate function/class User.numShelves
}
CrawlUserProfile.form.appendLineToLog(User.userIdString + ":: " + "details and ticked updated.");
}
public void Process(Crawler crawler, PropertyBag propertyBag)
{
HtmlDocument htmlDoc = propertyBag["HtmlDoc"].Value as HtmlDocument;
if (htmlDoc == null)
{
return; //this happens with HTTP errors etc. We don't bother with retrying or anything like that :(
}
HtmlNode doc = htmlDoc.DocumentNode;
string temp = propertyBag.ResponseUri.OriginalString;
string temp2 = CrawlReviewsOnUserProfile.baseUri.Substring(0, 54 + User.userIdString.Length);
//on page 1, add other pages for user
if (propertyBag.ResponseUri.OriginalString == CrawlReviewsOnUserProfile.baseUri)
{
var node = doc.SelectSingleNode(".//div[@id='reviewPagination']");
if (node != null)
{
try
{
var x = node.LastChild.PreviousSibling.PreviousSibling;
int maxPage = Int32.Parse(x.InnerText.Trim());
string uri;
for (int i = 2; i <= maxPage; i++)
{
uri = "http://www.goodreads.com/review/list/" + User.userIdString + "?format=html&page=" + i + "&per_page=100&shelf=read";
crawler.AddStep(new Uri(uri), 0);
CrawlReviewsOnUserProfile.form.appendLineToLog(uri);
}
}
catch (Exception)
{
}
}
}
lock (this)
{
GoodReadsCrawlerEntities context = CrawlUtil.getNewContext();
foreach (var reviewNode in doc.SelectNodes(".//tr[@class='bookalike review']"))
{
CrawlReviewsOnUserProfile.count++;
string reviewIdString = reviewNode.GetAttributeValue("id", "");
if (reviewIdString == "")
{
return;
}
int reviewId = Int32.Parse(reviewIdString.Split('_').GetValue(1).ToString());
Review review = CrawlUtil.getReview(context, reviewId);
//create and process the REVIEW if it doesn't already exist
if (review == null)
{
HtmlNode node;
review = new Review();
review.id = reviewId;
//REVIEW.rating
node = reviewNode.SelectSingleNode(".//td[@class='field rating']//img");
if (node != null)
{
string ratingString = node.GetAttributeValue("alt", "0");
short rating = short.Parse(ratingString.Substring(0, 1));
review.starRating = rating;
}
//REVIEW.publishdate
node = reviewNode.SelectSingleNode(".//td[@class='field date_added']//span");
if (node != null)
{
DateTime date;
DateTime.TryParse(node.InnerText, out date);
review.publishDate = date;
}
//USER
review.userId = User.id;
review.userIdString = User.userIdString;
//BOOK
node = reviewNode.SelectSingleNode(".//td[@class='field title']//a");
string bookUrl = node.GetAttributeValue("href", "");
int bookId = CrawlUtil.extractIdNumberFromUrl(bookUrl); //if bookUrl is null then bookId gets set to 0
Book book = CrawlUtil.getBook(context, bookId);
if (book == null)
{
book = new Book();
book.id = bookId;
string title = node.GetAttributeValue("title", "");
book.title = title;
node = reviewNode.SelectSingleNode(".//td[@class='field isbn']//div");
if (node != null)
{
book.isbn = node.InnerText.Trim();
}
//AUTHOR
node = reviewNode.SelectSingleNode(".//td[@class='field author']//a");
if (node != null)
{
string authorUrl = node.GetAttributeValue("href", "");
int authorId = CrawlUtil.extractIdNumberFromUrl(authorUrl); //if bookUrl is null then bookId gets set to 0
Author author = CrawlUtil.getAuthor(context, authorId);
if (author == null)
{
author = new Author();
author.id = authorId;
author.name = CrawlUtil.formatAuthorName(node.InnerText.Trim());
book.Author = author;
}
}
}
review.Book = book;
context.SaveChanges();
}
}
CrawlReviewsOnUserProfile.form.appendLineToLog(User.userIdString + ":: " + CrawlReviewsOnUserProfile.count + " reviews crawled");
}
}
public void Process(Crawler crawler, PropertyBag propertyBag)
{
HtmlDocument htmlDoc = propertyBag["HtmlDoc"].Value as HtmlDocument;
if (htmlDoc == null)
{
return; //this happens with HTTP errors etc. We don't bother with retrying or anything like that :(
}
HtmlNode doc = htmlDoc.DocumentNode;
string temp = propertyBag.ResponseUri.OriginalString;
string temp2 = CrawlReviewsOnUserProfile_Updated.baseUri.Substring(0, 54 + User.userIdString.Length);
//on page 1, add other pages for user
if (propertyBag.ResponseUri.OriginalString == CrawlReviewsOnUserProfile_Updated.baseUri)
{
var node = doc.SelectSingleNode(".//div[@id='reviewPagination']");
if (node != null)
{
HtmlNode maxPageNode;
int maxPage = 0;
try
{
maxPageNode = node.LastChild.PreviousSibling.PreviousSibling;
maxPage = Int32.Parse(maxPageNode.InnerText.Trim());
}
catch (Exception)
{
CrawlReviewsOnUserProfile_Updated.form.appendLineToLog("Error getting maxPage on " + propertyBag.ResponseUri.OriginalString);
return;
}
//get new reviews since last crawl?
int pagesToCrawl = 0;
if (CrawlReviewsOnUserProfile_Updated.getReviewsSinceLastCrawl)
{
pagesToCrawl = maxPage - (User.Reviews.Count / 20); //int division results in truncation
if (pagesToCrawl < 1)
{
return;
}
/**** TEMP to get pages 30 and above (for users with more than 600 reviews (after getting up to 600 only on a previous run))****/
//for (int i = 30; i <= maxPage; i++)
//{
// String s= "http://www.goodreads.com/review/list/" + User.userIdString + "?order=a&page=" + i + "&print=true&shelf=read&sort=date_added&view=reviews";
// crawler.AddStep(new Uri(s), 0);
// CrawlReviewsOnUserProfile_Updated.form.appendLineToLog(s);
//}
//return;
/*** Old logic pre 2015 11 30 ***
* int startPage = (User.Reviews.Count / 20)+1;
* string uri;
* for (int i = startPage; i <= maxPage; i++)
* {
* uri = "http://www.goodreads.com/review/list/" + User.userIdString + "?order=a&page=" + i + "&print=true&shelf=read&sort=date_added&view=reviews";
* crawler.AddStep(new Uri(uri), 0);
*
* CrawlReviewsOnUserProfile_Updated.form.appendLineToLog(uri);
* }
* return;
* *************/
}
else //crawl every page
{
pagesToCrawl = maxPage;
}
string uri;
for (int i = 2; i <= pagesToCrawl; i++)
{
//http://www.goodreads.com/review/list/1-otis-chandler?page=3&print=true&shelf=read
uri = "http://www.goodreads.com/review/list/" + User.userIdString + "?page=" + i + "&print=true&shelf=read";
crawler.AddStep(new Uri(uri), 0);
CrawlReviewsOnUserProfile_Updated.form.appendLineToLog(uri);
}
//continue to with crawl on page 1 unless endPage is 0 (i.e. no pages need to be crawled)
//2015-11-30: getting X latest pages is now redudant since reviews are now always sorted by date added ascending.
//feature removed for 2015 update 5 crawl
//get reviews from specified pages; or latest X pages
//get user's latest X pages of reviews if user has more than (maxPage * 20) reviews; X determined by getHowManyLatestPages
//if (maxPage > CrawlReviewsOnUserProfile_Updated.maxPage)
//{
// if (CrawlReviewsOnUserProfile_Updated.getHowManyLatestPages > 0)
// {
// int numLatestPages = Math.Min(CrawlReviewsOnUserProfile_Updated.getHowManyLatestPages, maxPage - CrawlReviewsOnUserProfile_Updated.maxPage);
// for (int i = 0; i < numLatestPages; i++)
// {
// string uriLatest = "http://www.goodreads.com/review/list/" + User.userIdString + "?order=a&page=" + (maxPage - i) + "&print=true&shelf=read&sort=date_added&view=reviews";
// crawler.AddStep(new Uri(uriLatest), 0);
// CrawlReviewsOnUserProfile_Updated.form.appendLineToLog(uriLatest);
// }
// }
// maxPage = CrawlReviewsOnUserProfile_Updated.maxPage;
//}
//string u;
//for (int i = CrawlReviewsOnUserProfile_Updated.minPage; i <= maxPage; i++)
//{
// u = "http://www.goodreads.com/review/list/" + User.userIdString + "?order=a&page=" + i + "&print=true&shelf=read&sort=date_added&view=reviews";
// crawler.AddStep(new Uri(u), 0);
// CrawlReviewsOnUserProfile_Updated.form.appendLineToLog(u);
//}
//if don't want to include page 1 then don't crawl after adding other pages to crawl
//if (CrawlReviewsOnUserProfile_Updated.minPage > 1)
//{
// return;
//}
}
}
lock (this)
{
GoodReadsCrawlerEntities context = CrawlUtil.getNewContext();
foreach (var reviewNode in doc.SelectNodes(".//tr[@class='bookalike review']"))
{
string reviewIdString = reviewNode.GetAttributeValue("id", "");
if (reviewIdString == "")
{
return;
}
int reviewId = Int32.Parse(reviewIdString.Split('_').GetValue(1).ToString());
//Review review = CrawlUtil.createOrGetReview(context, reviewId);
Review review = CrawlUtil.getReview(context, reviewId);
if (review == null) //review is new
{
review = new Review();
review.id = reviewId;
context.Reviews.AddObject(review);
}
else //review already exists
{
continue;
}
HtmlNode node;
//REVIEW.rating
/*<td class="field rating">
* <label>Reb's rating</label>
* <div class="value">
* <a class=" staticStars stars_4" title="really liked it">4 of 5 stars</a>
* </div>
* </td>*/
node = reviewNode.SelectSingleNode(".//td[@class='field rating']//a");
if (node != null)
{
string ratingClassString = node.GetAttributeValue("class", "0");
short rating = CrawlUtil.getRatingFromClassString(ratingClassString);
review.starRating = rating;
}
//REVIEW.publishdate
node = reviewNode.SelectSingleNode(".//td[@class='field date_added']//span");
if (node != null)
{
DateTime date;
DateTime.TryParse(node.InnerText, out date);
review.publishDate = date;
}
//USER
review.userId = User.id;
review.userIdString = User.userIdString;
//BOOK
node = reviewNode.SelectSingleNode(".//td[@class='field title']//a");
string bookUrl = node.GetAttributeValue("href", "");
int bookId = CrawlUtil.extractIdNumberFromUrl(bookUrl); //if bookUrl is null then bookId gets set to 0
Book book = CrawlUtil.getBook(context, bookId);
if (book == null)
{
book = new Book();
book.id = bookId;
string title = node.GetAttributeValue("title", "");
book.title = title;
node = reviewNode.SelectSingleNode(".//td[@class='field isbn']//div");
if (node != null)
{
book.isbn = node.InnerText.Trim();
}
//AUTHOR
node = reviewNode.SelectSingleNode(".//td[@class='field author']//a");
if (node != null)
{
string authorUrl = node.GetAttributeValue("href", "");
int authorId = CrawlUtil.extractIdNumberFromUrl(authorUrl); //if bookUrl is null then bookId gets set to 0
Author author = CrawlUtil.getAuthor(context, authorId);
if (author == null)
{
author = new Author();
author.id = authorId;
author.name = CrawlUtil.formatAuthorName(node.InnerText.Trim());
book.Author = author;
}
}
}
review.Book = book;
context.SaveChanges();
CrawlReviewsOnUserProfile_Updated.count++;
}
CrawlReviewsOnUserProfile_Updated.form.appendLineToLog(User.userIdString + ":: " + CrawlReviewsOnUserProfile_Updated.count + " reviews crawled");
}
}
