public static bool HaveExternalIP()
{
if (!_haveExternalIP.HasValue)
{
string convertUri;
try
{
var uri = new UriBuilder(HttpContext.Current.Request.Url)
{
Path = VirtualPath + "demo.docx",
Query = ""
};
var fileUri = uri.ToString();
ServiceConverter.GetConvertedUri(fileUri, "docx", "docx", Guid.NewGuid().ToString(), false, out convertUri);
}
catch
{
convertUri = string.Empty;
}
_haveExternalIP = !string.IsNullOrEmpty(convertUri);
}
return(_haveExternalIP.Value);
}
public static string DoConvert(HttpContext context)
{
_fileName = context.Request["filename"];
var extension = (Path.GetExtension(_fileName) ?? "").Trim('.');
var internalExtension = FileType.GetInternalExtension(_fileName).Trim('.');
if (ConvertExts.Contains("." + extension) &&
!string.IsNullOrEmpty(internalExtension))
{
var key = ServiceConverter.GenerateRevisionId(FileUri(_fileName));
string newFileUri;
var result = ServiceConverter.GetConvertedUri(FileUri(_fileName), extension, internalExtension, key, true, out newFileUri);
if (result != 100)
{
return("{ \"step\" : \"" + result + "\", \"filename\" : \"" + _fileName + "\"}");
}
var fileName = GetCorrectName(Path.GetFileNameWithoutExtension(_fileName) + "." + internalExtension);
var req = (HttpWebRequest)WebRequest.Create(newFileUri);
using (var stream = req.GetResponse().GetResponseStream())
{
if (stream == null)
{
throw new Exception("Stream is null");
}
const int bufferSize = 4096;
using (var fs = File.Open(StoragePath + fileName, FileMode.Create))
{
var buffer = new byte[bufferSize];
int readed;
while ((readed = stream.Read(buffer, 0, bufferSize)) != 0)
{
fs.Write(buffer, 0, readed);
}
}
}
File.Delete(StoragePath + _fileName);
_fileName = fileName;
}
return("{ \"filename\" : \"" + _fileName + "\"}");
}
private static void Get(HttpContext context)
{
context.Response.ContentType = "text/plain";
var fileName = context.Request["fileName"];
if (string.IsNullOrEmpty(fileName))
{
context.Response.Write("error");
return;
}
try
{
var fileUri = EditDefault.FileUri(fileName);
var key = ServiceConverter.GenerateRevisionId(EditDefault.CurUserHostAddress + "/" + Path.GetFileName(fileUri));
var validateKey = ServiceConverter.GenerateValidateKey(key);
context.Response.Write(String.Format("{{ \"fileUri\": \"{0}\", \"key\": \"{1}\", \"validateKey\": \"{2}\" }}", fileUri, key, validateKey));
}
catch (Exception e)
{
context.Response.Write("{ \"error\": \"" + e.Message + "\"}");
}
}
public static string GetExternalUri(string localUri)
{
try
{
var uri = HttpRuntime.Cache.Get(localUri) as string;
if (string.IsNullOrEmpty(uri))
{
var webRequest = WebRequest.Create(localUri);
using (var response = webRequest.GetResponse())
using (var responseStream = response.GetResponseStream())
{
var key = ServiceConverter.GenerateRevisionId(localUri);
uri = ServiceConverter.GetExternalUri(responseStream, response.ContentLength, response.ContentType, key);
}
HttpRuntime.Cache.Insert(localUri, uri, null, DateTime.UtcNow.Add(TimeSpan.FromMinutes(2)), Cache.NoSlidingExpiration);
}
return(uri);
}
catch (Exception)
{
}
return(localUri);
}
private static void Save(HttpContext context)
{
context.Response.ContentType = "text/plain";
var downloadUri = context.Request["fileuri"];
var fileName = context.Request["filename"];
if (string.IsNullOrEmpty(downloadUri) || string.IsNullOrEmpty(fileName))
{
context.Response.Write("error");
return;
}
var newType = Path.GetExtension(downloadUri).Trim('.');
var currentType = (context.Request["filetype"] ?? Path.GetExtension(fileName)).Trim('.');
if (newType.ToLower() != currentType.ToLower())
{
var key = ServiceConverter.GenerateRevisionId(downloadUri);
string newFileUri;
try
{
var result = ServiceConverter.GetConvertedUri(downloadUri, newType, currentType, key, false, out newFileUri);
if (result != 100)
{
throw new Exception();
}
}
catch (Exception)
{
context.Response.Write("error");
return;
}
downloadUri = newFileUri;
newType = currentType;
}
fileName = Path.GetFileNameWithoutExtension(fileName) + "." + newType;
var req = (HttpWebRequest)WebRequest.Create(downloadUri);
try
{
using (var stream = req.GetResponse().GetResponseStream())
{
if (stream == null)
{
throw new Exception("stream is null");
}
const int bufferSize = 4096;
using (var fs = File.Open(EditDefault.StoragePath + fileName, FileMode.Create))
{
var buffer = new byte[bufferSize];
int readed;
while ((readed = stream.Read(buffer, 0, bufferSize)) != 0)
{
fs.Write(buffer, 0, readed);
}
}
}
}
catch (Exception)
{
context.Response.Write("error");
return;
}
context.Response.Write("success");
}
