Get filenames by URL Directory in WinService or WinForms application

Question

I have win service which must download all zip files by URL(for example http://download.geonames.org/export/dump/) but when i use Directory.GetFiles method or DirectoryInfo di = new DirectoryInfo(ConfigurationManager.AppSettings["GeoFullDataURLPath"]) i get error:

URI formats are not supported..

How i can resolve this problem?

Is the URL matching a local path? – jv42 Dec 12 '11 at 11:11 — jv42, Dec 12 '11 at 11:11
URL on remote server, it's is not local path... – Alexey Z. Dec 12 '11 at 11:23 — Alexey Z., Dec 12 '11 at 11:23

score 2 · Answer 1 · answered Dec 12 '11 at 11:10

2

You have to make a WebRequest. DirectoryInfo is for local drives and SMB shares only I believe. This should do the trick : http://www.csharp-examples.net/download-files/

answered Dec 12 '11 at 11:10

Myles McDonnell

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http://www.csharp-examples.net/download-files/ in this link - how to download files, but i need list of all files by url, not how download.. – Alexey Z. Dec 12 '11 at 11:27
You will have to parse the HTML of the page that lists the files in order to ascertain the URL of each target. Shai's answer has a link to something that might help. – Myles McDonnell Dec 12 '11 at 11:44

score 2 · Answer 2 · edited May 23 '17 at 12:32

2

You can't use Directory.GetFiles on a URL.

Consider the following example:

 WebClient webClient = new WebClient();
 webClient.DownloadFile("http://download.geonames.org/export/dump/file.zip", "new-file.zip");

This will download the file file.zip from the URL above.

Directory listings over web is usually blocked for security reasons,

EDIT: See this

edited May 23 '17 at 12:32

Community

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answered Dec 12 '11 at 11:12

Shai

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@AlexeyZ. AFAIK there is no built in function with which you can do that,I guess its time to get your hands dirty (with the code of-course) :) – Vamsi Dec 12 '11 at 11:26

score 1 · Accepted Answer · answered Dec 12 '11 at 12:23

The full source code for performing this task is:

string
    storeLocation = "C:\\dump",
    fileName = "",
    baseURL = "http://download.geonames.org/export/dump/";

WebClient r = new WebClient();            
string content = r.DownloadString(baseURL);
foreach (Match m in Regex.Matches(content, "<a href=\\\"[^\\.]+\\.zip\">"))
{
    fileName = Regex.Match(m.Value, "\\w+\\.zip").Value;
    r.DownloadFile(baseURL + fileName, Path.Combine(storeLocation, fileName));
}

Get filenames by URL Directory in WinService or WinForms application

3 Answers3