/// <summary>
/// CREATE new item, replace if it exists. URI identifies the context for the item in question.
/// No parameters are required for POST, just thepayload.
/// </summary>
private void DoDelete(FileRequestData rdata)
{
bool modified = false;
bool created = false;
string path = String.Empty;
Rest.Log.DebugFormat("{0} REST File handler, Method = <{1}> ENTRY", MsgId, rdata.method);
if (rdata.Parameters.Length > 1)
{
try
{
path = rdata.path.Substring(rdata.Parameters[0].Length + qPrefix.Length + 2);
if (File.Exists(path))
{
File.Delete(path);
}
}
catch (Exception e)
{
Rest.Log.DebugFormat("{0} Exception during file processing : {1}", MsgId,
e.Message);
rdata.Fail(Rest.HttpStatusCodeNotFound, String.Format("invalid parameters : {0} {1}",
path, e.Message));
}
}
else
{
Rest.Log.DebugFormat("{0} Invalid parameters: <{1}>", MsgId, rdata.path);
rdata.Fail(Rest.HttpStatusCodeNotFound, "invalid parameters");
}
if (created)
{
rdata.appendStatus(String.Format("<p> Created file {0} <p>", path));
rdata.Complete(Rest.HttpStatusCodeCreated);
}
else
{
if (modified)
{
rdata.appendStatus(String.Format("<p> Modified file {0} <p>", path));
rdata.Complete(Rest.HttpStatusCodeOK);
}
else
{
rdata.Complete(Rest.HttpStatusCodeNoContent);
}
}
rdata.Respond(String.Format("File {0} : Normal completion", rdata.method));
}
/// <summary>
/// The only parameter we recognize is a UUID.If an asset with this identification is
/// found, it's content, base-64 encoded, is returned to the client.
/// </summary>
private void DoGet(FileRequestData rdata)
{
string path = String.Empty;
Rest.Log.DebugFormat("{0} REST File handler, Method = <{1}> ENTRY", MsgId, rdata.method);
if (rdata.Parameters.Length > 1)
{
try
{
path = rdata.path.Substring(rdata.Parameters[0].Length + qPrefix.Length + 2);
if (File.Exists(path))
{
Rest.Log.DebugFormat("{0} File located <{1}>", MsgId, path);
Byte[] data = File.ReadAllBytes(path);
rdata.initXmlWriter();
rdata.writer.WriteStartElement(String.Empty, "File", String.Empty);
rdata.writer.WriteAttributeString("name", path);
rdata.writer.WriteBase64(data, 0, data.Length);
rdata.writer.WriteFullEndElement();
}
else
{
Rest.Log.DebugFormat("{0} Invalid parameters: <{1}>", MsgId, path);
rdata.Fail(Rest.HttpStatusCodeNotFound, String.Format("invalid parameters : {0}", path));
}
}
catch (Exception e)
{
Rest.Log.DebugFormat("{0} Invalid parameters: <{1}>", MsgId, e.Message);
rdata.Fail(Rest.HttpStatusCodeNotFound, String.Format("invalid parameters : {0} {1}",
path, e.Message));
}
}
rdata.Complete();
rdata.Respond(String.Format("File <{0}> : Normal completion", rdata.method));
}
/// <summary>
/// CREATE new item, replace if it exists. URI identifies the context for the item in question.
/// No parameters are required for POST, just thepayload.
/// </summary>
private void DoDelete(FileRequestData rdata)
{
bool modified = false;
bool created = false;
string path = String.Empty;
Rest.Log.DebugFormat("{0} REST File handler, Method = <{1}> ENTRY", MsgId, rdata.method);
if (rdata.Parameters.Length > 1)
{
try
{
path = rdata.path.Substring(rdata.Parameters[0].Length+qPrefix.Length+2);
if (File.Exists(path))
{
File.Delete(path);
}
}
catch (Exception e)
{
Rest.Log.DebugFormat("{0} Exception during file processing : {1}", MsgId,
e.Message);
rdata.Fail(Rest.HttpStatusCodeNotFound, String.Format("invalid parameters : {0} {1}",
path, e.Message));
}
}
else
{
Rest.Log.DebugFormat("{0} Invalid parameters: <{1}>", MsgId, rdata.path);
rdata.Fail(Rest.HttpStatusCodeNotFound, "invalid parameters");
}
if (created)
{
rdata.appendStatus(String.Format("<p> Created file {0} <p>", path));
rdata.Complete(Rest.HttpStatusCodeCreated);
}
else
{
if (modified)
{
rdata.appendStatus(String.Format("<p> Modified file {0} <p>", path));
rdata.Complete(Rest.HttpStatusCodeOK);
}
else
{
rdata.Complete(Rest.HttpStatusCodeNoContent);
}
}
rdata.Respond(String.Format("File {0} : Normal completion", rdata.method));
}
/// <summary>
/// CREATE new item, replace if it exists. URI identifies the context for the item in question.
/// No parameters are required for POST, just thepayload.
/// </summary>
private void DoPost(FileRequestData rdata)
{
bool modified = false;
bool created = false;
string path = String.Empty;
Rest.Log.DebugFormat("{0} REST File handler, Method = <{1}> ENTRY", MsgId, rdata.method);
if (rdata.Parameters.Length > 1)
{
try
{
path = rdata.path.Substring(rdata.Parameters[0].Length+qPrefix.Length+2);
bool maymod = File.Exists(path);
rdata.initXmlReader();
XmlReader xml = rdata.reader;
if (!xml.ReadToFollowing("File"))
{
Rest.Log.DebugFormat("{0} Invalid request data: <{1}>", MsgId, rdata.path);
rdata.Fail(Rest.HttpStatusCodeBadRequest,"invalid request data");
}
Byte[] data = Convert.FromBase64String(xml.ReadElementContentAsString("File", ""));
File.WriteAllBytes(path,data);
modified = maymod;
created = ! maymod;
}
catch (Exception e)
{
Rest.Log.DebugFormat("{0} Exception during file processing : {1}", MsgId,
e.Message);
}
}
else
{
Rest.Log.DebugFormat("{0} Invalid parameters: <{1}>", MsgId, rdata.path);
rdata.Fail(Rest.HttpStatusCodeNotFound, "invalid parameters");
}
if (created)
{
rdata.appendStatus(String.Format("<p> Created file {0} <p>", path));
rdata.Complete(Rest.HttpStatusCodeCreated);
}
else
{
if (modified)
{
rdata.appendStatus(String.Format("<p> Modified file {0} <p>", path));
rdata.Complete(Rest.HttpStatusCodeOK);
}
else
{
rdata.Complete(Rest.HttpStatusCodeNoContent);
}
}
rdata.Respond(String.Format("File {0} : Normal completion", rdata.method));
}
/// <summary>
/// The only parameter we recognize is a UUID.If an asset with this identification is
/// found, it's content, base-64 encoded, is returned to the client.
/// </summary>
private void DoGet(FileRequestData rdata)
{
string path = String.Empty;
Rest.Log.DebugFormat("{0} REST File handler, Method = <{1}> ENTRY", MsgId, rdata.method);
if (rdata.Parameters.Length > 1)
{
try
{
path = rdata.path.Substring(rdata.Parameters[0].Length+qPrefix.Length+2);
if (File.Exists(path))
{
Rest.Log.DebugFormat("{0} File located <{1}>", MsgId, path);
Byte[] data = File.ReadAllBytes(path);
rdata.initXmlWriter();
rdata.writer.WriteStartElement(String.Empty,"File",String.Empty);
rdata.writer.WriteAttributeString("name", path);
rdata.writer.WriteBase64(data,0,data.Length);
rdata.writer.WriteFullEndElement();
}
else
{
Rest.Log.DebugFormat("{0} Invalid parameters: <{1}>", MsgId, path);
rdata.Fail(Rest.HttpStatusCodeNotFound, String.Format("invalid parameters : {0}", path));
}
}
catch (Exception e)
{
Rest.Log.DebugFormat("{0} Invalid parameters: <{1}>", MsgId, e.Message);
rdata.Fail(Rest.HttpStatusCodeNotFound, String.Format("invalid parameters : {0} {1}",
path, e.Message));
}
}
rdata.Complete();
rdata.Respond(String.Format("File <{0}> : Normal completion", rdata.method));
}
/// <summary>
/// CREATE new item, replace if it exists. URI identifies the context for the item in question.
/// No parameters are required for POST, just thepayload.
/// </summary>
private void DoPost(FileRequestData rdata)
{
bool modified = false;
bool created = false;
string path = String.Empty;
Rest.Log.DebugFormat("{0} REST File handler, Method = <{1}> ENTRY", MsgId, rdata.method);
if (rdata.Parameters.Length > 1)
{
try
{
path = rdata.path.Substring(rdata.Parameters[0].Length + qPrefix.Length + 2);
bool maymod = File.Exists(path);
rdata.initXmlReader();
XmlReader xml = rdata.reader;
if (!xml.ReadToFollowing("File"))
{
Rest.Log.DebugFormat("{0} Invalid request data: <{1}>", MsgId, rdata.path);
rdata.Fail(Rest.HttpStatusCodeBadRequest, "invalid request data");
}
Byte[] data = Convert.FromBase64String(xml.ReadElementContentAsString("File", ""));
File.WriteAllBytes(path, data);
modified = maymod;
created = !maymod;
}
catch (Exception e)
{
Rest.Log.DebugFormat("{0} Exception during file processing : {1}", MsgId,
e.Message);
}
}
else
{
Rest.Log.DebugFormat("{0} Invalid parameters: <{1}>", MsgId, rdata.path);
rdata.Fail(Rest.HttpStatusCodeNotFound, "invalid parameters");
}
if (created)
{
rdata.appendStatus(String.Format("<p> Created file {0} <p>", path));
rdata.Complete(Rest.HttpStatusCodeCreated);
}
else
{
if (modified)
{
rdata.appendStatus(String.Format("<p> Modified file {0} <p>", path));
rdata.Complete(Rest.HttpStatusCodeOK);
}
else
{
rdata.Complete(Rest.HttpStatusCodeNoContent);
}
}
rdata.Respond(String.Format("File {0} : Normal completion", rdata.method));
}
// Asset Handler
private void DoFile(RequestData rparm)
{
if (!enabled)
{
return;
}
FileRequestData rdata = (FileRequestData)rparm;
Rest.Log.DebugFormat("{0} REST File handler ({1}) ENTRY", MsgId, qPrefix);
// Now that we know this is a serious attempt to
// access file data, we should find out who
// is asking, and make sure they are authorized
// to do so. We need to validate the caller's
// identity before revealing anything about the
// status quo. Authenticate throws an exception
// via Fail if no identity information is present.
//
// With the present HTTP server we can't use the
// builtin authentication mechanisms because they
// would be enforced for all in-bound requests.
// Instead we look at the headers ourselves and
// handle authentication directly.
try
{
if (!rdata.IsAuthenticated)
{
rdata.Fail(Rest.HttpStatusCodeNotAuthorized, String.Format("user \"{0}\" could not be authenticated"));
}
}
catch (RestException e)
{
if (e.statusCode == Rest.HttpStatusCodeNotAuthorized)
{
Rest.Log.WarnFormat("{0} User not authenticated", MsgId);
Rest.Log.DebugFormat("{0} Authorization header: {1}", MsgId,
rdata.request.Headers.Get("Authorization"));
}
else
{
Rest.Log.ErrorFormat("{0} User authentication failed", MsgId);
Rest.Log.DebugFormat("{0} Authorization header: {1}", MsgId,
rdata.request.Headers.Get("Authorization"));
}
throw (e);
}
// Remove the prefix and what's left are the parameters. If we don't have
// the parameters we need, fail the request. Parameters do NOT include
// any supplied query values.
if (rdata.Parameters.Length > 0)
{
switch (rdata.method)
{
case "get":
DoGet(rdata);
break;
case "put":
DoPut(rdata);
break;
case "post":
DoPost(rdata);
break;
case "delete":
DoDelete(rdata);
break;
default:
Rest.Log.WarnFormat("{0} File: Method not supported: {1}",
MsgId, rdata.method);
rdata.Fail(Rest.HttpStatusCodeBadRequest, String.Format("method <{0}> not supported", rdata.method));
break;
}
}
else
{
Rest.Log.WarnFormat("{0} File: No agent information provided", MsgId);
rdata.Fail(Rest.HttpStatusCodeBadRequest, "no agent information provided");
}
Rest.Log.DebugFormat("{0} REST File handler EXIT", MsgId);
}