public string GuessBookIsbn(string fullPath)
{
string isbn;
var fileName = Path.GetFileName(fullPath);
if (string.IsNullOrEmpty(fileName))
{
return(null);
}
// Step 1: Check if the book path has the ISBN
var strMatch = @"[\d]+X?";
if (Regex.IsMatch(fileName, strMatch))
{
for (var m = Regex.Match(fileName, strMatch); m.Success; m = m.NextMatch())
{
isbn = m.ToString();
if (isbn.Length == 10 || isbn.Length == 13)
{
return(isbn);
}
}
}
strMatch = @"[\d\.\-_ ]+X?";
if (Regex.IsMatch(fileName, strMatch))
{
for (var m = Regex.Match(fileName, strMatch); m.Success; m = m.NextMatch())
{
isbn = m.ToString();
if (isbn.Length < 10)
{
continue;
}
isbn = isbn.Replace(".", string.Empty);
isbn = isbn.Replace(" ", string.Empty);
isbn = isbn.Replace("_", string.Empty);
if (isbn.Length > 13)
{
continue;
}
if (isbn.Length == 10 || isbn.Length == 13)
{
return(isbn);
}
}
}
// Step 2:
// if book is PDF then read the ext and search for a line
var extension = Path.GetExtension(fullPath);
if (extension != null && extension.ToUpper().Equals(".PDF"))
{
var pdfTextParser = new PdfIsbnParser();
try
{
var foundIsbn = pdfTextParser.Go(fullPath);
if (foundIsbn != string.Empty)
{
return(foundIsbn);
}
}
catch (BookieException ex)
{
Logger.Log.Error("Unable to parse PDF", ex);
}
}
// Step 3:
// Use the path as a book title and search for it
var bookTitle = fileName.Replace(".", " ");
bookTitle = bookTitle.Replace("_", " ");
bookTitle = bookTitle.Replace("-", " ");
var searchUrl = "http://www.google.com/search?hl=en&q=" + HttpUtility.UrlEncode(bookTitle);
var documentText = SimpleBrowseToPage(searchUrl);
var r1 = Regex.Match(documentText,
@"www.amazon.com/.*?/(\d{9}X|\d{10,13})");
if (r1.Success)
{
isbn = r1.Groups[1].ToString();
return(isbn);
}
searchUrl = "http://www.google.com/search?hl=en&q=%22" + HttpUtility.UrlEncode(bookTitle);
searchUrl += "%22+amazon";
documentText = SimpleBrowseToPage(searchUrl);
var r2 = Regex.Match(documentText,
@"www.amazon.com/.*?/(\d{9}X|\d{10,13})");
if (!r2.Success)
{
return(string.Empty);
}
isbn = r2.Groups[1].ToString();
return(isbn);
}
public string GuessBookIsbn(string fullPath)
{
string isbn;
var fileName = Path.GetFileName(fullPath);
if (string.IsNullOrEmpty(fileName))
{
return null;
}
// Step 1: Check if the book path has the ISBN
var strMatch = @"[\d]+X?";
if (Regex.IsMatch(fileName, strMatch))
{
for (var m = Regex.Match(fileName, strMatch); m.Success; m = m.NextMatch())
{
isbn = m.ToString();
if (isbn.Length == 10 || isbn.Length == 13)
return isbn;
}
}
strMatch = @"[\d\.\-_ ]+X?";
if (Regex.IsMatch(fileName, strMatch))
{
for (var m = Regex.Match(fileName, strMatch); m.Success; m = m.NextMatch())
{
isbn = m.ToString();
if (isbn.Length < 10) continue;
isbn = isbn.Replace(".", string.Empty);
isbn = isbn.Replace(" ", string.Empty);
isbn = isbn.Replace("_", string.Empty);
if (isbn.Length > 13) continue;
if (isbn.Length == 10 || isbn.Length == 13)
return isbn;
}
}
// Step 2:
// if book is PDF then read the ext and search for a line
var extension = Path.GetExtension(fullPath);
if (extension != null && extension.ToUpper().Equals(".PDF"))
{
var pdfTextParser = new PdfIsbnParser();
try
{
var foundIsbn = pdfTextParser.Go(fullPath);
if (foundIsbn != string.Empty) return foundIsbn;
}
catch (BookieException ex)
{
Logger.Log.Error("Unable to parse PDF", ex);
}
}
// Step 3:
// Use the path as a book title and search for it
var bookTitle = fileName.Replace(".", " ");
bookTitle = bookTitle.Replace("_", " ");
bookTitle = bookTitle.Replace("-", " ");
var searchUrl = "http://www.google.com/search?hl=en&q=" + HttpUtility.UrlEncode(bookTitle);
var documentText = SimpleBrowseToPage(searchUrl);
var r1 = Regex.Match(documentText,
@"www.amazon.com/.*?/(\d{9}X|\d{10,13})");
if (r1.Success)
{
isbn = r1.Groups[1].ToString();
return isbn;
}
searchUrl = "http://www.google.com/search?hl=en&q=%22" + HttpUtility.UrlEncode(bookTitle);
searchUrl += "%22+amazon";
documentText = SimpleBrowseToPage(searchUrl);
var r2 = Regex.Match(documentText,
@"www.amazon.com/.*?/(\d{9}X|\d{10,13})");
if (!r2.Success)
{
return string.Empty;
}
isbn = r2.Groups[1].ToString();
return isbn;
}