/// <summary>
/// Extracts the Informations about a file
/// </summary>
/// <param name="file"></param>
/// <returns></returns>
public static void GetFileInfo(DirectoryItem file, string dataStr)
{
var doc = new HtmlDocument();
doc.LoadHtml(dataStr);
var div = doc.DocumentNode.SelectSingleNode("//div[contains(@class,'Box mt-3 position-relative')]/div[contains(@class,'Box-header')]/div");
var divider = div.SelectSingleNode("span");
//The Html in Github informs the Number of lines and Size of a File.
//Here these values are extracted.
//If divider is null the page only display de size of the file.
//Its a Binary file.
//Else its a Text file and the number of lines and Size of the file are shown.
if (divider == null)// only size
{
var fileSize = div.InnerText.Trim().Split(' ');
file.Size = Convert.ToDecimal(fileSize[0]);
file.SizeUnit = fileSize[1].ToLower();
}
else
{
LinesAndSizeExtractor.LinesAndSize linesAndSize;
try
{
linesAndSize = LinesAndSizeExtractor.Extract(div.InnerText);
}
catch (Exception ex)
{
throw;
}
file.NumberOfLines = linesAndSize.NumberOfLines;
file.Size = linesAndSize.Size;
file.SizeUnit = linesAndSize.Unit;
}
}
/// <summary>
/// Return all Dir and files in a Repository
/// </summary>
/// <param name="pageUrl"></param>
/// <param name="directoryItemObjects"></param>
public static async Task GetDirItems(string pageUrl, List <DirectoryItem> directoryItemObjects)
{
//Dirs at the current folder/page
var localDirs = new List <DirectoryItem>();
var tasks = new List <Task <string> >();
//Start with the root Repository folder
localDirs.Add(new DirectoryItem {
Url = pageUrl, Type = DirObjectType.DIRECTORY
});
while (localDirs.Count > 0)
{
//Downloads all folder pages in parallel
foreach (var item in localDirs)
{
tasks.Add(GhderHttpClient.Instance.GetStringAsync(GHProjectDownloaderService.GitHubUrl + item.Url));
}
//Waits all folder/pages to be downloaded
await Task.WhenAll(tasks);
var pages = new List <Page>();
for (int i = 0; i < tasks.Count(); i++)
{
pages.Add(new Page {
Html = tasks[i].Result, Url = localDirs[i].Url
});
}
localDirs = new List <DirectoryItem>();
//For each downloaded dir/page
foreach (var page in pages)
{
var doc = new HtmlDocument();
doc.LoadHtml(page.Html);
//List all rows in a directory.
//Each row is a div and each cell is a div.
var divs = doc.DocumentNode.SelectNodes("//div[contains(@class,'js-navigation-item')]");
if (divs == null)
{
throw new DomainException($"No Rows found in: {page.Url}");
}
foreach (var div in divs)
{
//Inside a folder, the first item of the directory is a link for the upper directory.
//If the first cell row doesnt have a svg, its a upper directory link.
var svg = div.SelectSingleNode("div[1]/svg");
if (svg == null)
{
continue;
}
var type = svg.Attributes["aria-label"].Value.ToLower();// directory or file
var dirObjectType = type == "file" ? DirObjectType.FILE : DirObjectType.DIRECTORY;
var url = div.SelectSingleNode("div[2]/span/a").Attributes["href"].Value;
var name = div.SelectSingleNode("div[2]/span/a").InnerText;
var newItem = new DirectoryItem {
Type = dirObjectType, Url = url, Name = name, Extension = GetExtention(name)
};
//all folder objects
directoryItemObjects.Add(newItem);
//Only folders.
//Folders can have subfolders!
if (newItem.Type == DirObjectType.DIRECTORY)
{
localDirs.Add(newItem);
}
}
}//foreach
tasks = new List <Task <string> >();
} //While
} // Method
