Hi,
\r\nI am using DotNetZip library in sharepoint object model and i am passing the file name as "http://gdot-govm-spd24/info/tpd/Test/Data.txt" and trying to create this file as zip and it throwing me URI formats are not supported. When i use the same file which\r\n is on my local drive, it works perfectly. I am not sure what i am doing wrong here. Please help me.
\r\nThis is the piece of code i am using here:
\r\nusing (ZipFile zip = new ZipFile())
\r\n{
\r\nforeach (string filename in ItemsID)
\r\n{
\r\nZipEntry e = zip.AddFile(filename);
\r\n}
\r\nzip.Save(@"C:\\suri.zip");
\r\n}
\r\nThanks
\r\nKPd
\r\n", "PostedDate": "2011-03-23T07:47:08.98-07:00", "UserRole": null, "MarkedAsAnswerDate": null }, { "Id": "586361", "ThreadId": "250867", "Html": "no, DotNetZip can read from filesystems. It cannot read from http sources. An easy way to do what you want is to send a GET request to the HTTP resource, and then pass the ResponseStream to the call to AddFile().
", "PostedDate": "2011-03-25T05:33:19.14-07:00", "UserRole": null, "MarkedAsAnswerDate": null }, { "Id": "678886", "ThreadId": "250867", "Html": "I am trying to do the same thing but it says URI format not supported. Do you have any example, which can help me fix this issue?
", "PostedDate": "2011-09-30T19:45:34.79-07:00", "UserRole": null, "MarkedAsAnswerDate": null }, { "Id": "679169", "ThreadId": "250867", "Html": "There are many variations. One way to do it is to use WebClient to open a stream for the given URL, then call the ZipFile.AddEntry() method that accepts a stream. Something like this would work:
\r\nstring url = \"http://example.org/fi/fie/fo/fum.txt\";\r\nusing (var zip = new ZipFile())\r\n{\r\n using (WebClient client = new WebClient())\r\n {\r\n using (var s = client.OpenRead(url))\r\n {\r\n // s is a readable System.IO.Stream\r\n zip.AddEntry(\"ThisEntry.txt\", s);\r\n // must save the zip (and thereby read the stream) before disposing the stream or WebClient \r\n zip.Save(\"MyArchive.zip\");\r\n }\r\n }\r\n}\r\n\r\n
If you have multiple URLs to pack into a single zip file, then you would need to keep all of those streams open at the same time. The basic structure in the snippet above will work for a variable number of URLs, but you'd have to save the zip file for each additional URL added, which is very much non-optimal.
\r\nWhat you'd like to do is open the stream only as necessary during the save operation. This is possible using the ZipFile.AddEntry() method that accepts an OpenDelegate and a CloseDelegate. In this approach, your code opens the stream within the context of the save operation. It looks like this:
\r\nstring[] urls = {\r\n \"http://example.org/whatever.txt\",\r\n \"http://example.org/whatever2.txt\",\r\n \"http://example.org/whatever3.txt\"\r\n }; \r\n\r\nvar getOpener = new Ionic.Zip.OpenDelegate( name => {\r\n // GetUrlForEntryName is your custom function...\r\n var url = GetUrlForEntryName (name);\r\n WebClient c = new WebClient();\r\n return c.OpenRead(url);\r\n});\r\n\r\nvar closer = new Ionic.Zip.CloseDelegate( (name, stream) => {\r\n stream.Dispose();\r\n});\r\n\r\nusing(var zip = new Ionic.Zip.ZipFile())\r\n{\r\n for(int i=0; i<urls.Length; i++) \r\n {\r\n // GetEntryNameForUrl is your custom function...\r\n var entryName = GetEntryNameForUrl(urls[i]);\r\n zip.AddEntry(entryName, getOpener, closer);\r\n }\r\n zip.Save(zipFileName);\r\n}\r\n\r\n\r\n
\r\n
", "PostedDate": "2011-10-02T16:03:30.61-07:00", "UserRole": null, "MarkedAsAnswerDate": null }, { "Id": "1323516", "ThreadId": "250867", "Html": "Thanks Cheeso, here is a slightly simpler multi-file version in VB
Dim pdfs As New List(Of Tuple(Of String, String))\npdfs.Add(New Tuple(Of String, String)("MyFileNameInZip", "http://urlToFile.pdf"))\nIf pdfs.Count > 0 Then\n Dim getOpener = New Ionic.Zip.OpenDelegate(Function(name) New WebClient().OpenRead(pdfs.FirstOrDefault(Function(x) x.Item1 = name).Item2))\n Dim closer = New Ionic.Zip.CloseDelegate(Sub(name, stream) stream.Dispose())\n Using zip = New Ionic.Zip.ZipFile()\n For Each pdf In pdfs\n zip.AddEntry(pdf.Item1, getOpener, closer)\n Next\n Response.ContentType = "application/zip"\n Response.AddHeader("Content-Disposition", "filename=MyZipFile.zip")\n zip.Save(Response.OutputStream)\n End Using\nEnd If