/// <summary>
/// Used when entering a new directory
/// </summary>
/// \todo Protect the non-first iterations + comments
private void recursiveExploration(string _realPath, FileExplorationType _type = FileExplorationType.Full_And_File_Contents, string _parentID = "0", bool _firstIteration = true)
{
database = DB.getInstance();
if (_firstIteration)
{
//check if the path is reachable
if (Directory.Exists(_realPath))
{
//make sure all the folders are set up to this point
_parentID = createRouteToPath(_realPath);
}
else
{
throw new DriveNotFoundException();
}
}
string[] folderPaths = _realPath.Split(new char[] { '/', '\\' });
string folderName = folderPaths[folderPaths.Length - 1];
//check that the folder name is correct. if not, do not do further operations in it to avoid weird things caused by the Directory.GetDirectories()
if (!UNAUTHORISED_CHAR_IN_FILES_REGEX.IsMatch(folderName) && !UNAUTHORISED_CHAR_IN_FOLDER_REGEX.IsMatch(folderName))
{
//Add the folder to the DB
string folderID;
if (!_firstIteration)
{
//don't add it to the first iteration
folderID = database.addFolder(folderName, _parentID, FileOrigin.Local);
}
else
{
//else take the id of the parent
folderID = _parentID;
}
//Recursively call all the child directories
try
{
foreach (string childPath in Directory.GetDirectories(_realPath))
{
recursiveExploration(childPath, _type, folderID, false);
}
}
catch (DirectoryNotFoundException e)
{
Debug.Print("Folder Error");
}
//Call all the files to be added
foreach (string filePath in Directory.GetFiles(_realPath))
{
//Check if we need to read the file content or no
if (_type == FileExplorationType.Full_And_File_Contents)
{
addFile(filePath, _realPath, folderID, true);
}
else
{
addFile(filePath, _realPath, folderID, false);
}
}
}
else
{
Debug.WriteLine("Error : Folder with name not supported : " + _realPath);
}
}
/// <summary>
/// Start the indexation of the website applying the mode inputed
/// </summary>
/// \todo Handle the type + maybe create more folders
/// \todo Handle website not reachable
/// <param name="_url">The url of the website from which get the content </param>
/// <param name="_type">The type of exploration wanted</param>
public void index(string _url, FileExplorationType _type)
{
//Check if the URL is valid
//http://stackoverflow.com/a/5926605
bool urlIsCorrect = false;
WebRequest webRequest = WebRequest.Create(_url);
WebResponse webResponse;
try
{
webResponse = webRequest.GetResponse();
urlIsCorrect = true;
}
catch
{ }
//If the page can be reach
if (urlIsCorrect)
{
//make sure there's a / at the end of the link
if (_url.Split('/').Last() != "")
{
_url += '/';
}
//add the root folder to the DB
database = DB.getInstance();
string idParentFolder = database.addFolder(_url, "0", FileOrigin.Web);
//Start the indexation
#region Indexation
//Initialise the web client
WebClient wc = new WebClient();
//Create an hashset used to explore all the links between the pages, and add the current page to it
HashSet <string> linksHashSet = new HashSet <string>();
linksHashSet.Add(_url);
string domain = DOMAIN_FINDER.Match(_url).Groups[1].Value;
string filTextContent = "";
//Loop until the end of the hashset
for (int i = 0; i < linksHashSet.Count; i++)
{
//check if this is a readablepage or not
if (READABLE_EXTENSION.IsMatch(linksHashSet.ElementAt(i)))
{
//try to read the content of the page
try
{
filTextContent = wc.DownloadString(linksHashSet.ElementAt(i));
}
catch
{
filTextContent = "";
}
//Parse only the text, and fill the hashet with links if the page contains text
if (filTextContent != "")
{
filTextContent = readPageContent(domain, filTextContent, ref linksHashSet);
//get the file name
string[] filSplittedName = linksHashSet.ElementAt(i).Split(new char[] { '/', '.' });
//else simply add it to the file list
string filName = linksHashSet.ElementAt(i);
//check if this links start with a domain or no
if (filName[0] != '/')
{
//remove the domain and stock the file name
filName = DOMAIN_FINDER.Replace(filName, "");
}
string filExtension = "";
filName = filName.Split(new char[] { '.' }, 2)[0];
database.addFile(filName, filExtension, idParentFolder, filTextContent);
}
}
else
{
//else simply add it to the file list
string filName = linksHashSet.ElementAt(i);
//check if this links start with a domain or no
if (filName[0] != '/')
{
//remove the domain and stock the file name
filName = DOMAIN_FINDER.Replace(filName, "");
}
//split the extension
string filExtension = filName.Split(new char[] { '.' }, 2)[1];
filName = filName.Split(new char[] { '.' }, 2)[0];
database.addFile(filName, filExtension, idParentFolder);
}
}
#endregion
}
else
{
//TODO display an error
}
}
/// <summary>
/// Start the indexation
/// </summary>
/// <param name="_path">Path to index</param>
/// <param name="_type">Type of exploration, by default explore all the files and their content</param>
public void index(string _path, FileExplorationType _type = FileExplorationType.Full_And_File_Contents)
{
recursiveExploration(_path, _type);
}