From: Alan Webb <alan_webb@us.ibm.com>

This commit adds RestFileServices to the REST ApplicationPlugin service.
0.6.5-rc1
Dr Scofield 2009-04-24 07:03:06 +00:00
parent 883f7dde38
commit 9bdfb9034d
2 changed files with 450 additions and 2 deletions

View File

@ -1272,8 +1272,9 @@ namespace OpenSim.ApplicationPlugins.Rest.Inventory
if (buffer != null && buffer.Length != 0) if (buffer != null && buffer.Length != 0)
{ {
Rest.Log.DebugFormat("{0} Entity buffer, length = {1} : <{2}>", Rest.Log.DebugFormat("{0} Entity buffer, length = {1}", MsgId, buffer.Length);
MsgId, buffer.Length, encoding.GetString(buffer)); // Rest.Log.DebugFormat("{0} Entity buffer, length = {1} : <{2}>",
// MsgId, buffer.Length, encoding.GetString(buffer));
response.OutputStream.Write(buffer, 0, buffer.Length); response.OutputStream.Write(buffer, 0, buffer.Length);
} }

View File

@ -0,0 +1,447 @@
/*
* Copyright (c) Contributors, http://opensimulator.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the OpenSim Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System;
using System.Xml;
using System.IO;
using OpenMetaverse;
using OpenSim.Framework;
using OpenSim.Framework.Servers;
namespace OpenSim.ApplicationPlugins.Rest.Inventory
{
public class RestFileServices : IRest
{
private bool enabled = false;
private string qPrefix = "files";
// A simple constructor is used to handle any once-only
// initialization of working classes.
public RestFileServices()
{
Rest.Log.InfoFormat("{0} File services initializing", MsgId);
Rest.Log.InfoFormat("{0} Using REST Implementation Version {1}", MsgId, Rest.Version);
// If the handler specifies a relative path for its domain
// then we must add the standard absolute prefix, e.g. /admin
if (!qPrefix.StartsWith(Rest.UrlPathSeparator))
{
Rest.Log.InfoFormat("{0} Prefixing domain name ({1})", MsgId, qPrefix);
qPrefix = String.Format("{0}{1}{2}", Rest.Prefix, Rest.UrlPathSeparator, qPrefix);
Rest.Log.InfoFormat("{0} Fully qualified domain name is <{1}>", MsgId, qPrefix);
}
// Register interface using the fully-qualified prefix
Rest.Plugin.AddPathHandler(DoFile, qPrefix, Allocate);
// Activate if all went OK
enabled = true;
Rest.Log.InfoFormat("{0} File services initialization complete", MsgId);
}
// Post-construction, pre-enabled initialization opportunity
// Not currently exploited.
public void Initialize()
{
}
// Called by the plug-in to halt REST processing. Local processing is
// disabled, and control blocks until all current processing has
// completed. No new processing will be started
public void Close()
{
enabled = false;
Rest.Log.InfoFormat("{0} File services ({1}) closing down", MsgId, qPrefix);
}
// Properties
internal string MsgId
{
get { return Rest.MsgId; }
}
#region Interface
private RequestData Allocate(OSHttpRequest request, OSHttpResponse response, string prefix)
{
return (RequestData) new FileRequestData(request, response, prefix);
}
// 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);
}
#endregion Interface
/// <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>
/// UPDATE existing item, if it exists. URI identifies the item in question.
/// The only parameter we recognize is a UUID. The enclosed asset data (base-64 encoded)
/// is decoded and stored in the database, identified by the supplied UUID.
/// </summary>
private void DoPut(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>
/// 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>
/// 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>
/// File processing has no special data area requirements.
/// </summary>
internal class FileRequestData : RequestData
{
internal FileRequestData(OSHttpRequest request, OSHttpResponse response, string prefix)
: base(request, response, prefix)
{
}
}
}
}