I'm trying to download a number of pdf files automagically given a list of urls.
Here's the code I have:
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "GET";
var encoding = new UTF8Encoding();
request.Headers.Add(HttpRequestHeader.AcceptLanguage, "en-gb,en;q=0.5");
request.Headers.Add(HttpRequestHeader.AcceptEncoding, "gzip, deflate");
request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
request.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20100101 Firefox/12.0";
HttpWebResponse resp = (HttpWebResponse)request.GetResponse();
BinaryReader reader = new BinaryReader(resp.GetResponseStream());
FileStream stream = new FileStream("output/" + date.ToString("yyyy-MM-dd") + ".pdf",FileMode.Create);
BinaryWriter writer = new BinaryWriter(stream);
while (reader.PeekChar() != -1)
{
writer.Write(reader.Read());
}
writer.Flush();
writer.Close();
So, I know the first part works. I was originally getting it and reading it using a TextReader - but that gave me corrupted pdf files (since pdfs are binary files).
Right now if I run it, reader.PeekChar() is always -1 and nothing happens - I get an empty file.
While debugging it, I noticed that reader.Read() was actually giving different numbers when I was invoking it - so maybe Peek is broken.
So I tried something very dirty
try
{
while (true)
{
writer.Write(reader.Read());
}
}
catch
{
}
writer.Flush();
writer.Close();
Now I'm getting a very tiny file with some garbage in it, but its still not what I'm looking for.
So, anyone can point me in the right direction?
Additional Information:
The header doesn't suggest its compressed or anything else.
HTTP/1.1 200 OK
Content-Type: application/pdf
Server: Microsoft-IIS/7.5
X-Powered-By: ASP.NET
Date: Fri, 10 Aug 2012 11:15:48 GMT
Content-Length: 109809
Skip the BinaryReader
and BinaryWriter
and just copy the input stream to the output FileStream
. Briefly
var fileName = "output/" + date.ToString("yyyy-MM-dd") + ".pdf";
using (var stream = File.Create(fileName))
resp.GetResponseStream().CopyTo(stream);