/// <summary>
/// As of 2018-07-31, format changed. For some amount of time, keep both just in case.
/// TODO: Switch to Kindle section and grab only those instead
/// </summary>
public static List <BookInfo> GetAuthorBooksNew(AuthorSearchResults searchResults, string curTitle, string curAuthor, string TLD)
{
var resultsNodes = searchResults.authorHtmlDoc.DocumentNode.SelectNodes("//div[@id='searchWidget']/div");
if (resultsNodes == null)
{
return(null);
}
var bookList = new List <BookInfo>(resultsNodes.Count);
foreach (var result in resultsNodes)
{
if (result.InnerHtml.Contains("a-pagination"))
{
continue;
}
var bookNodes = result.SelectNodes(".//div[@class='a-fixed-right-grid-inner']/div/div")
?? throw new DataSource.FormatChangedException(nameof(Amazon), "book results - title nodes");
var name = bookNodes.FirstOrDefault()?.SelectSingleNode("./a")?.InnerText.Trim()
?? throw new DataSource.FormatChangedException(nameof(Amazon), "book results - title");
//Exclude the current book title
if (name.ContainsIgnorecase(curTitle) ||
name.ContainsIgnorecase(@"(Series|Reading) Order|Checklist|Edition|eSpecial|\([0-9]+ Book Series\)"))
{
continue;
}
// Get Kindle ASIN
var asin = "";
foreach (var bookNode in bookNodes)
{
var match = Regex.Match(bookNode.OuterHtml, "(dp/(?<asin>B[A-Z0-9]{9})/|/gp/product/(?<asin>B[A-Z0-9]{9}))", RegexOptions.Compiled);
if (!match.Success)
{
continue;
}
asin = match.Groups["asin"].Value;
break;
}
// TODO: This should be removable when the Kindle Only page is parsed instead
if (asin == "")
{
continue; //throw new DataSource.FormatChangedException(nameof(Amazon), "book results - kindle edition asin");
}
bookList.Add(new BookInfo(name, curAuthor, asin)
{
amazonUrl = $"https://www.amazon.{TLD}/dp/{asin}"
});
}
return(bookList);
}
// TODO: Review this...
public async Task <bool> Generate()
{
string outputDir;
try
{
if (_settings.Android)
{
outputDir = _settings.OutDir + @"\Android\" + _curBook.asin;
Directory.CreateDirectory(outputDir);
}
else
{
outputDir = _settings.UseSubDirectories ? Functions.GetBookOutputDirectory(_curBook.author, _curBook.sidecarName, true) : _settings.OutDir;
}
}
catch (Exception ex)
{
Logger.Log("An error occurred creating output directory: " + ex.Message + "\r\nFiles will be placed in the default output directory.");
outputDir = _settings.OutDir;
}
string ApPath = outputDir + @"\AuthorProfile.profile." + _curBook.asin + ".asc";
if (!Properties.Settings.Default.overwrite && File.Exists(ApPath))
{
Logger.Log("AuthorProfile file already exists... Skipping!\r\n" +
"Please review the settings page if you want to overwite any existing files.");
return(false);
}
DataSources.AuthorSearchResults searchResults = null;
// Attempt to download from the alternate site, if present. If it fails in some way, try .com
// If the .com search crashes, it will crash back to the caller in frmMain
try
{
searchResults = await DataSources.Amazon.SearchAuthor(_curBook, _settings.AmazonTld);
}
catch (Exception ex)
{
Logger.Log("Error searching Amazon." + _settings.AmazonTld + ": " + ex.Message + "\r\n" + ex.StackTrace);
}
finally
{
if (searchResults == null)
{
Logger.Log(String.Format("Failed to find {0} on Amazon." + _settings.AmazonTld, _curBook.author));
if (_settings.AmazonTld != "com")
{
Logger.Log("Trying again with Amazon.com.");
_settings.AmazonTld = "com";
searchResults = await DataSources.Amazon.SearchAuthor(_curBook, _settings.AmazonTld);
}
}
}
if (searchResults == null)
{
return(false); // Already logged error in search function
}
authorAsin = searchResults.authorAsin;
if (Properties.Settings.Default.saveHtml)
{
try
{
Logger.Log("Saving author's Amazon webpage...");
File.WriteAllText(Environment.CurrentDirectory + String.Format(@"\dmp\{0}.authorpageHtml.txt", _curBook.asin),
searchResults.authorHtmlDoc.DocumentNode.InnerHtml);
}
catch (Exception ex)
{
Logger.Log(String.Format("An error occurred saving authorpageHtml.txt: {0}", ex.Message));
}
}
// Try to find author's biography
string bioFile = Environment.CurrentDirectory + @"\ext\" + authorAsin + ".bio";
if (_settings.SaveBio && File.Exists(bioFile))
{
if (!readBio(bioFile))
{
return(false);
}
}
if (BioTrimmed == "")
{
// TODO: Let users edit bio in same style as chapters and aliases
HtmlNode bio = DataSources.Amazon.GetBioNode(searchResults, _settings.AmazonTld);
//Trim authour biography to less than 1000 characters and/or replace more problematic characters.
if (bio?.InnerText.Trim().Length > 0)
{
if (bio.InnerText.Length > 1000)
{
int lastPunc = bio.InnerText.LastIndexOfAny(new [] { '.', '!', '?' });
int lastSpace = bio.InnerText.LastIndexOf(' ');
if (lastPunc > lastSpace)
{
BioTrimmed = bio.InnerText.Substring(0, lastPunc + 1);
}
else
{
BioTrimmed = bio.InnerText.Substring(0, lastSpace) + '\u2026';
}
}
else
{
BioTrimmed = bio.InnerText;
}
BioTrimmed = BioTrimmed.Clean();
Logger.Log("Author biography found on Amazon!");
}
}
else
{
File.WriteAllText(bioFile, String.Empty);
if (System.Windows.Forms.DialogResult.Yes ==
System.Windows.Forms.MessageBox.Show(
"No author biography found on Amazon!\r\nWould you like to create a biography?", "Biography",
System.Windows.Forms.MessageBoxButtons.YesNo, System.Windows.Forms.MessageBoxIcon.Question,
System.Windows.Forms.MessageBoxDefaultButton.Button2))
{
Functions.RunNotepad(bioFile);
if (!readBio(bioFile))
{
return(false);
}
}
else
{
BioTrimmed = "No author biography found on Amazon!";
Logger.Log("An error occurred finding the author biography on Amazon.");
}
}
if (_settings.SaveBio)
{
if (!File.Exists(bioFile))
{
try
{
Logger.Log("Saving biography to " + bioFile);
using (var streamWriter = new StreamWriter(bioFile, false, System.Text.Encoding.UTF8))
{
streamWriter.Write(BioTrimmed);
}
}
catch (Exception ex)
{
Logger.Log("An error occurred while writing biography.\r\n" + ex.Message + "\r\n" + ex.StackTrace);
return(false);
}
}
if (System.Windows.Forms.DialogResult.Yes == System.Windows.Forms.MessageBox.Show("Would you like to open the biography file in notepad for editing?", "Biography",
System.Windows.Forms.MessageBoxButtons.YesNo, System.Windows.Forms.MessageBoxIcon.Question, System.Windows.Forms.MessageBoxDefaultButton.Button2))
{
Functions.RunNotepad(bioFile);
if (!readBio(bioFile))
{
return(false);
}
}
}
// Try to download Author image
HtmlNode imageXpath = DataSources.Amazon.GetAuthorImageNode(searchResults, _settings.AmazonTld);
authorImageUrl = Regex.Replace(imageXpath.GetAttributeValue("src", ""), @"_.*?_\.", string.Empty);
// cleanup to match retail file image links
if (authorImageUrl.Contains(@"https://images-na.ssl-images-amazon"))
{
authorImageUrl = authorImageUrl.Replace(@"https://images-na.ssl-images-amazon", @"http://ecx.images-amazon");
}
_curBook.authorImageUrl = authorImageUrl;
Bitmap ApAuthorImage;
try
{
Logger.Log("Downloading author image...");
ApAuthorImage = await HttpDownloader.GetImage(authorImageUrl);
Logger.Log("Grayscale base64-encoded author image created!");
}
catch (Exception ex)
{
Logger.Log(String.Format("An error occurred downloading the author image: {0}", ex.Message));
return(false);
}
Logger.Log("Gathering author's other books...");
var bookList = DataSources.Amazon.GetAuthorBooks(searchResults, _curBook.title, _curBook.author, _settings.AmazonTld)
?? DataSources.Amazon.GetAuthorBooksNew(searchResults, _curBook.title, _curBook.author, _settings.AmazonTld);
if (bookList != null)
{
Logger.Log("Gathering metadata for other books...");
var bookBag = new ConcurrentBag <BookInfo>();
await bookList.ParallelForEachAsync(async book =>
{
// TODO: retry a couple times if one fails maybe
try
{
//Gather book desc, image url, etc, if using new format
if (_settings.UseNewVersion)
{
await book.GetAmazonInfo(book.amazonUrl);
}
bookBag.Add(book);
}
catch (Exception ex)
{
Logger.Log(String.Format("An error occurred gathering metadata for other books: {0}\r\nURL: {1}\r\nBook: {2}", ex.Message, book.amazonUrl, book.title));
throw;
}
});
otherBooks.AddRange(bookBag);
}
else
{
Logger.Log("Unable to find other books by this author. If there should be some, check the Amazon URL to ensure it is correct.");
}
Logger.Log("Writing Author Profile to file...");
var authorOtherBooks = otherBooks.Select(book => new Model.AuthorProfile.Book
{
E = 1,
Asin = book.asin,
Title = book.title
}).ToArray();
var ap = new Model.AuthorProfile
{
Asin = _curBook.asin,
CreationDate = Functions.UnixTimestampSeconds(),
OtherBooks = authorOtherBooks,
Authors = new []
{
new Model.AuthorProfile.Author
{
Asin = authorAsin,
Bio = BioTrimmed,
ImageHeight = ApAuthorImage.Height,
Name = _curBook.author,
OtherBookAsins = otherBooks.Select(book => book.asin).ToArray(),
Picture = Functions.ImageToBase64(ApAuthorImage, ImageFormat.Jpeg)
}
}
};
string authorProfileOutput = JsonConvert.SerializeObject(ap);
try
{
File.WriteAllText(ApPath, authorProfileOutput);
Logger.Log("Author Profile file created successfully!\r\nSaved to " + ApPath);
}
catch (Exception ex)
{
Logger.Log("An error occurred while writing the Author Profile file: " + ex.Message + "\r\n" + ex.StackTrace);
return(false);
}
ApTitle = "About " + _curBook.author;
ApSubTitle = "Kindle Books By " + _curBook.author;
EaSubTitle = "More Books By " + _curBook.author;
return(true);
}
public static async Task <AuthorSearchResults> SearchAuthor(BookInfo curBook, string TLD)
{
AuthorSearchResults results = new AuthorSearchResults();
//Generate Author search URL from author's name
string newAuthor = Functions.FixAuthor(curBook.author);
string plusAuthorName = newAuthor.Replace(" ", "+");
//Updated to match Search "all" Amazon
string amazonAuthorSearchUrl = $"https://www.amazon.{TLD}/s/ref=nb_sb_noss_2?url=search-alias%3Dstripbooks&field-keywords={plusAuthorName}";
Logger.Log($"Searching for author's page on Amazon.{TLD}...");
// Search Amazon for Author
results.authorHtmlDoc = new HtmlDocument {
OptionAutoCloseOnEnd = true
};
results.authorHtmlDoc.LoadHtml(await HttpDownloader.GetPageHtmlAsync(amazonAuthorSearchUrl));
if (Properties.Settings.Default.saveHtml)
{
try
{
Logger.Log("Saving Amazon's author search webpage...");
File.WriteAllText(Environment.CurrentDirectory + $"\\dmp\\{curBook.asin}.authorsearchHtml.txt",
results.authorHtmlDoc.DocumentNode.InnerHtml);
}
catch (Exception ex)
{
Logger.Log(String.Format("An error ocurred saving authorsearchHtml.txt: {0}", ex.Message));
}
}
// Check for captcha
// TODO: Try to prompt for captcha and have user complete it to continue
if (results.authorHtmlDoc.DocumentNode.InnerText.Contains("Robot Check"))
{
Logger.Log($"Warning: Amazon.{TLD} is requesting a captcha."
+ $"You can try visiting Amazon.{TLD} in a real browser first, try another region, or try again later.");
}
// Try to find Author's page from Amazon search
HtmlNode node = results.authorHtmlDoc.DocumentNode.SelectSingleNode("//*[@id='result_1']");
if (node == null || !node.OuterHtml.Contains("/e/B"))
{
Logger.Log($"An error occurred finding author's page on Amazon.{TLD}." +
"\r\nUnable to create Author Profile." +
"\r\nEnsure the author metadata field matches the author's name exactly." +
$"\r\nSearch results can be viewed at {amazonAuthorSearchUrl}");
return(null);
}
string properAuthor = "";
// Check for typical search results, second item is the author page
if ((node = node.SelectSingleNode("//*[@id='result_1']/div/div/div/div/a")) != null)
{
properAuthor = node.GetAttributeValue("href", "");
results.authorAsin = node.GetAttributeValue("data-asin", null)
?? AsinFromUrl(properAuthor);
}
// otherwise check for "by so-and-so" text beneath the titles for a possible match
else if ((node = results.authorHtmlDoc.DocumentNode.SelectSingleNode($"//div[@id='resultsCol']//li[@class='s-result-item celwidget ']//a[text()=\"{newAuthor}\"]")) != null)
{
properAuthor = node.GetAttributeValue("href", "");
results.authorAsin = AsinFromUrl(properAuthor);
}
if (string.IsNullOrEmpty(properAuthor) || properAuthor.IndexOf('/', 1) < 3 || results.authorAsin == "")
{
Logger.Log("Unable to parse author's page URL properly. Try again later or report this URL on the MobileRead thread: " + amazonAuthorSearchUrl);
return(null);
}
properAuthor = properAuthor.Substring(1, properAuthor.IndexOf('/', 1) - 1);
string authorAmazonWebsiteLocationLog = @"https://www.amazon." + TLD + "/" + properAuthor + "/e/" + results.authorAsin;
string authorAmazonWebsiteLocation = @"https://www.amazon." + TLD + "/" + properAuthor + "/e/" + results.authorAsin +
"/ref=la_" + results.authorAsin +
"_rf_p_n_feature_browse-b_2?fst=as%3Aoff&rh=n%3A283155%2Cp_82%3A" +
results.authorAsin +
"%2Cp_n_feature_browse-bin%3A618073011&bbn=283155&ie=UTF8&qid=1432378570&rnid=618072011";
curBook.authorAsin = results.authorAsin;
Logger.Log($"Author page found on Amazon!\r\nAuthor's Amazon Page URL: {authorAmazonWebsiteLocationLog}");
// Load Author's Amazon page
string authorpageHtml;
try
{
authorpageHtml = await HttpDownloader.GetPageHtmlAsync(authorAmazonWebsiteLocation);
}
catch
{
// If page not found (on co.uk at least, the long form does not seem to work) fallback to short form
// and pray the formatting/item display suits our needs. If short form not found, crash back to caller.
authorpageHtml = await HttpDownloader.GetPageHtmlAsync(authorAmazonWebsiteLocationLog);
}
results.authorHtmlDoc.LoadHtml(authorpageHtml);
return(results);
}
public static List <BookInfo> GetAuthorBooks(AuthorSearchResults searchResults, string curTitle, string curAuthor, string TLD)
{
HtmlNodeCollection resultsNodes = searchResults.authorHtmlDoc.DocumentNode.SelectNodes("//div[@id='mainResults']/ul/li");
if (resultsNodes == null)
{
return(null);
}
List <BookInfo> bookList = new List <BookInfo>(resultsNodes.Count);
foreach (HtmlNode result in resultsNodes)
{
if (!result.Id.StartsWith("result_"))
{
continue;
}
string asin = "";
HtmlNode otherBook = result.SelectSingleNode(".//div[@class='a-row a-spacing-small']/a/h2");
if (otherBook == null)
{
continue;
}
//Exclude the current book title from other books search
if (Regex.Match(otherBook.InnerText, curTitle, RegexOptions.IgnoreCase).Success ||
Regex.Match(otherBook.InnerText, @"(Series|Reading) Order|Checklist|Edition|eSpecial|\([0-9]+ Book Series\)", RegexOptions.IgnoreCase).Success)
{
continue;
}
var name = otherBook.InnerText.Trim();
otherBook = result.SelectSingleNode(".//*[@title='Kindle Edition']");
Match match = Regex.Match(otherBook.OuterHtml, "dp/(B[A-Z0-9]{9})/");
if (match.Success)
{
asin = match.Groups[1].Value;
}
var url = $"https://www.amazon.{TLD}/dp/{asin}";
if (name != "" && url != "" && asin != "")
{
BookInfo newBook = new BookInfo(name, curAuthor, asin)
{
amazonUrl = url
};
bookList.Add(newBook);
}
}
// If no kindle books returned, try the top carousel
if (bookList.Count == 0)
{
resultsNodes = searchResults.authorHtmlDoc.DocumentNode.SelectNodes("//ol[@class='a-carousel' and @role ='list']/li");
if (resultsNodes == null)
{
return(null);
}
foreach (HtmlNode result in resultsNodes)
{
string asin = "";
HtmlNode otherBook = result.SelectSingleNode(".//a/img");
if (otherBook == null)
{
continue;
}
var name = otherBook.GetAttributeValue("alt", "");
//Exclude the current book title from other books search
if (Regex.Match(name, curTitle, RegexOptions.IgnoreCase).Success ||
Regex.Match(name, @"(Series|Reading) Order|Checklist|Edition|eSpecial|\([0-9]+ Book Series\)", RegexOptions.IgnoreCase).Success)
{
continue;
}
otherBook = result.SelectSingleNode(".//a");
if (otherBook == null)
{
continue;
}
Match match = Regex.Match(otherBook.OuterHtml, "dp/(B[A-Z0-9]{9})/");
if (match.Success)
{
asin = match.Groups[1].Value;
}
var url = $"https://www.amazon.{TLD}/dp/{asin}";
if (name != "" && url != "" && asin != "")
{
BookInfo newBook = new BookInfo(name, curAuthor, asin)
{
amazonUrl = url
};
bookList.Add(newBook);
}
}
}
return(bookList);
}
public static HtmlNode GetAuthorImageNode(AuthorSearchResults searchResults, string TLD)
{
return(searchResults.authorHtmlDoc.DocumentNode.SelectSingleNode("//div[@id='ap-image']/img")
?? searchResults.authorHtmlDoc.DocumentNode.SelectSingleNode("//div[@id='authorImage']/img")
?? throw new DataSource.FormatChangedException(nameof(Amazon), "author image"));
}
// Get biography from results page; TLD included in case different Amazon sites have different formatting
public static HtmlNode GetBioNode(AuthorSearchResults searchResults, string TLD)
{
return(searchResults.authorHtmlDoc.DocumentNode.SelectSingleNode("//div[@id='ap-bio' and @class='a-row']/div/div/span")
?? searchResults.authorHtmlDoc.DocumentNode.SelectSingleNode("//span[@id='author_biography']")
?? throw new DataSource.FormatChangedException(nameof(Amazon), "author bio"));
}
