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-rw-r--r--OpenSim/Capabilities/Handlers/WebFetchInventoryDescendents/WebFetchInvDescHandler.cs438
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diff --git a/OpenSim/Capabilities/Handlers/WebFetchInventoryDescendents/WebFetchInvDescHandler.cs b/OpenSim/Capabilities/Handlers/WebFetchInventoryDescendents/WebFetchInvDescHandler.cs
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1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28using System;
29using System.Collections;
30using System.Collections.Generic;
31using System.Reflection;
32using log4net;
33using Nini.Config;
34using OpenMetaverse;
35using OpenMetaverse.StructuredData;
36using OpenSim.Framework;
37using OpenSim.Framework.Capabilities;
38using OpenSim.Region.Framework.Interfaces;
39using OpenSim.Framework.Servers.HttpServer;
40using OpenSim.Services.Interfaces;
41using Caps = OpenSim.Framework.Capabilities.Caps;
42
43namespace OpenSim.Capabilities.Handlers
44{
45 public class WebFetchInvDescHandler
46 {
47 private static readonly ILog m_log =
48 LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
49
50 private IInventoryService m_InventoryService;
51 private ILibraryService m_LibraryService;
52// private object m_fetchLock = new Object();
53
54 public WebFetchInvDescHandler(IInventoryService invService, ILibraryService libService)
55 {
56 m_InventoryService = invService;
57 m_LibraryService = libService;
58 }
59
60 public string FetchInventoryDescendentsRequest(string request, string path, string param, IOSHttpRequest httpRequest, IOSHttpResponse httpResponse)
61 {
62// lock (m_fetchLock)
63// {
64// m_log.DebugFormat("[WEB FETCH INV DESC HANDLER]: Received request {0}", request);
65
66 // nasty temporary hack here, the linden client falsely
67 // identifies the uuid 00000000-0000-0000-0000-000000000000
68 // as a string which breaks us
69 //
70 // correctly mark it as a uuid
71 //
72 request = request.Replace("<string>00000000-0000-0000-0000-000000000000</string>", "<uuid>00000000-0000-0000-0000-000000000000</uuid>");
73
74 // another hack <integer>1</integer> results in a
75 // System.ArgumentException: Object type System.Int32 cannot
76 // be converted to target type: System.Boolean
77 //
78 request = request.Replace("<key>fetch_folders</key><integer>0</integer>", "<key>fetch_folders</key><boolean>0</boolean>");
79 request = request.Replace("<key>fetch_folders</key><integer>1</integer>", "<key>fetch_folders</key><boolean>1</boolean>");
80
81 Hashtable hash = new Hashtable();
82 try
83 {
84 hash = (Hashtable)LLSD.LLSDDeserialize(Utils.StringToBytes(request));
85 }
86 catch (LLSD.LLSDParseException e)
87 {
88 m_log.ErrorFormat("[WEB FETCH INV DESC HANDLER]: Fetch error: {0}{1}" + e.Message, e.StackTrace);
89 m_log.Error("Request: " + request);
90 }
91
92 ArrayList foldersrequested = (ArrayList)hash["folders"];
93
94 string response = "";
95
96 for (int i = 0; i < foldersrequested.Count; i++)
97 {
98 string inventoryitemstr = "";
99 Hashtable inventoryhash = (Hashtable)foldersrequested[i];
100
101 LLSDFetchInventoryDescendents llsdRequest = new LLSDFetchInventoryDescendents();
102
103 try
104 {
105 LLSDHelpers.DeserialiseOSDMap(inventoryhash, llsdRequest);
106 }
107 catch (Exception e)
108 {
109 m_log.Debug("[WEB FETCH INV DESC HANDLER]: caught exception doing OSD deserialize" + e);
110 }
111 LLSDInventoryDescendents reply = FetchInventoryReply(llsdRequest);
112
113 inventoryitemstr = LLSDHelpers.SerialiseLLSDReply(reply);
114 inventoryitemstr = inventoryitemstr.Replace("<llsd><map><key>folders</key><array>", "");
115 inventoryitemstr = inventoryitemstr.Replace("</array></map></llsd>", "");
116
117 response += inventoryitemstr;
118 }
119
120 if (response.Length == 0)
121 {
122 // Ter-guess: If requests fail a lot, the client seems to stop requesting descendants.
123 // Therefore, I'm concluding that the client only has so many threads available to do requests
124 // and when a thread stalls.. is stays stalled.
125 // Therefore we need to return something valid
126 response = "<llsd><map><key>folders</key><array /></map></llsd>";
127 }
128 else
129 {
130 response = "<llsd><map><key>folders</key><array>" + response + "</array></map></llsd>";
131 }
132
133// m_log.DebugFormat("[WEB FETCH INV DESC HANDLER]: Replying to CAPS fetch inventory request");
134 //m_log.Debug("[WEB FETCH INV DESC HANDLER] "+response);
135
136 return response;
137
138// }
139 }
140
141 /// <summary>
142 /// Construct an LLSD reply packet to a CAPS inventory request
143 /// </summary>
144 /// <param name="invFetch"></param>
145 /// <returns></returns>
146 private LLSDInventoryDescendents FetchInventoryReply(LLSDFetchInventoryDescendents invFetch)
147 {
148 LLSDInventoryDescendents reply = new LLSDInventoryDescendents();
149 LLSDInventoryFolderContents contents = new LLSDInventoryFolderContents();
150 contents.agent_id = invFetch.owner_id;
151 contents.owner_id = invFetch.owner_id;
152 contents.folder_id = invFetch.folder_id;
153
154 reply.folders.Array.Add(contents);
155 InventoryCollection inv = new InventoryCollection();
156 inv.Folders = new List<InventoryFolderBase>();
157 inv.Items = new List<InventoryItemBase>();
158 int version = 0;
159 int descendents = 0;
160
161 inv
162 = Fetch(
163 invFetch.owner_id, invFetch.folder_id, invFetch.owner_id,
164 invFetch.fetch_folders, invFetch.fetch_items, invFetch.sort_order, out version, out descendents);
165
166 if (inv != null && inv.Folders != null)
167 {
168 foreach (InventoryFolderBase invFolder in inv.Folders)
169 {
170 contents.categories.Array.Add(ConvertInventoryFolder(invFolder));
171 }
172
173 descendents += inv.Folders.Count;
174 }
175
176 if (inv != null && inv.Items != null)
177 {
178 foreach (InventoryItemBase invItem in inv.Items)
179 {
180 contents.items.Array.Add(ConvertInventoryItem(invItem));
181 }
182 }
183
184 contents.descendents = descendents;
185 contents.version = version;
186
187// m_log.DebugFormat(
188// "[WEB FETCH INV DESC HANDLER]: Replying to request for folder {0} (fetch items {1}, fetch folders {2}) with {3} items and {4} folders for agent {5}",
189// invFetch.folder_id,
190// invFetch.fetch_items,
191// invFetch.fetch_folders,
192// contents.items.Array.Count,
193// contents.categories.Array.Count,
194// invFetch.owner_id);
195
196 return reply;
197 }
198
199 /// <summary>
200 /// Handle the caps inventory descendents fetch.
201 /// </summary>
202 /// <param name="agentID"></param>
203 /// <param name="folderID"></param>
204 /// <param name="ownerID"></param>
205 /// <param name="fetchFolders"></param>
206 /// <param name="fetchItems"></param>
207 /// <param name="sortOrder"></param>
208 /// <param name="version"></param>
209 /// <returns>An empty InventoryCollection if the inventory look up failed</returns>
210 private InventoryCollection Fetch(
211 UUID agentID, UUID folderID, UUID ownerID,
212 bool fetchFolders, bool fetchItems, int sortOrder, out int version, out int descendents)
213 {
214// m_log.DebugFormat(
215// "[WEB FETCH INV DESC HANDLER]: Fetching folders ({0}), items ({1}) from {2} for agent {3}",
216// fetchFolders, fetchItems, folderID, agentID);
217
218 // FIXME MAYBE: We're not handling sortOrder!
219
220 version = 0;
221 descendents = 0;
222
223 InventoryFolderImpl fold;
224 if (m_LibraryService != null && m_LibraryService.LibraryRootFolder != null && agentID == m_LibraryService.LibraryRootFolder.Owner)
225 {
226 if ((fold = m_LibraryService.LibraryRootFolder.FindFolder(folderID)) != null)
227 {
228 InventoryCollection ret = new InventoryCollection();
229 ret.Folders = new List<InventoryFolderBase>();
230 ret.Items = fold.RequestListOfItems();
231 descendents = ret.Folders.Count + ret.Items.Count;
232
233 return ret;
234 }
235 }
236
237 InventoryCollection contents = new InventoryCollection();
238
239 if (folderID != UUID.Zero)
240 {
241 contents = m_InventoryService.GetFolderContent(agentID, folderID);
242 InventoryFolderBase containingFolder = new InventoryFolderBase();
243 containingFolder.ID = folderID;
244 containingFolder.Owner = agentID;
245 containingFolder = m_InventoryService.GetFolder(containingFolder);
246
247 if (containingFolder != null)
248 {
249// m_log.DebugFormat(
250// "[WEB FETCH INV DESC HANDLER]: Retrieved folder {0} {1} for agent id {2}",
251// containingFolder.Name, containingFolder.ID, agentID);
252
253 version = containingFolder.Version;
254
255 if (fetchItems)
256 {
257 List<InventoryItemBase> itemsToReturn = contents.Items;
258 List<InventoryItemBase> originalItems = new List<InventoryItemBase>(itemsToReturn);
259
260 // descendents must only include the links, not the linked items we add
261 descendents = originalItems.Count;
262
263 // Add target items for links in this folder before the links themselves.
264 foreach (InventoryItemBase item in originalItems)
265 {
266 if (item.AssetType == (int)AssetType.Link)
267 {
268 InventoryItemBase linkedItem = m_InventoryService.GetItem(new InventoryItemBase(item.AssetID));
269
270 // Take care of genuinely broken links where the target doesn't exist
271 // HACK: Also, don't follow up links that just point to other links. In theory this is legitimate,
272 // but no viewer has been observed to set these up and this is the lazy way of avoiding cycles
273 // rather than having to keep track of every folder requested in the recursion.
274 if (linkedItem != null && linkedItem.AssetType != (int)AssetType.Link)
275 itemsToReturn.Insert(0, linkedItem);
276 }
277 }
278
279 // Now scan for folder links and insert the items they target and those links at the head of the return data
280 foreach (InventoryItemBase item in originalItems)
281 {
282 if (item.AssetType == (int)AssetType.LinkFolder)
283 {
284 InventoryCollection linkedFolderContents = m_InventoryService.GetFolderContent(ownerID, item.AssetID);
285 List<InventoryItemBase> links = linkedFolderContents.Items;
286
287 itemsToReturn.InsertRange(0, links);
288
289 foreach (InventoryItemBase link in linkedFolderContents.Items)
290 {
291 // Take care of genuinely broken links where the target doesn't exist
292 // HACK: Also, don't follow up links that just point to other links. In theory this is legitimate,
293 // but no viewer has been observed to set these up and this is the lazy way of avoiding cycles
294 // rather than having to keep track of every folder requested in the recursion.
295 if (link != null)
296 {
297// m_log.DebugFormat(
298// "[WEB FETCH INV DESC HANDLER]: Adding item {0} {1} from folder {2} linked from {3}",
299// link.Name, (AssetType)link.AssetType, item.AssetID, containingFolder.Name);
300
301 InventoryItemBase linkedItem
302 = m_InventoryService.GetItem(new InventoryItemBase(link.AssetID));
303
304 if (linkedItem != null)
305 itemsToReturn.Insert(0, linkedItem);
306 }
307 }
308 }
309 }
310 }
311
312// foreach (InventoryItemBase item in contents.Items)
313// {
314// m_log.DebugFormat(
315// "[WEB FETCH INV DESC HANDLER]: Returning item {0}, type {1}, parent {2} in {3} {4}",
316// item.Name, (AssetType)item.AssetType, item.Folder, containingFolder.Name, containingFolder.ID);
317// }
318
319 // =====
320
321//
322// foreach (InventoryItemBase linkedItem in linkedItemsToAdd)
323// {
324// m_log.DebugFormat(
325// "[WEB FETCH INV DESC HANDLER]: Inserted linked item {0} for link in folder {1} for agent {2}",
326// linkedItem.Name, folderID, agentID);
327//
328// contents.Items.Add(linkedItem);
329// }
330//
331// // If the folder requested contains links, then we need to send those folders first, otherwise the links
332// // will be broken in the viewer.
333// HashSet<UUID> linkedItemFolderIdsToSend = new HashSet<UUID>();
334// foreach (InventoryItemBase item in contents.Items)
335// {
336// if (item.AssetType == (int)AssetType.Link)
337// {
338// InventoryItemBase linkedItem = m_InventoryService.GetItem(new InventoryItemBase(item.AssetID));
339//
340// // Take care of genuinely broken links where the target doesn't exist
341// // HACK: Also, don't follow up links that just point to other links. In theory this is legitimate,
342// // but no viewer has been observed to set these up and this is the lazy way of avoiding cycles
343// // rather than having to keep track of every folder requested in the recursion.
344// if (linkedItem != null && linkedItem.AssetType != (int)AssetType.Link)
345// {
346// // We don't need to send the folder if source and destination of the link are in the same
347// // folder.
348// if (linkedItem.Folder != containingFolder.ID)
349// linkedItemFolderIdsToSend.Add(linkedItem.Folder);
350// }
351// }
352// }
353//
354// foreach (UUID linkedItemFolderId in linkedItemFolderIdsToSend)
355// {
356// m_log.DebugFormat(
357// "[WEB FETCH INV DESC HANDLER]: Recursively fetching folder {0} linked by item in folder {1} for agent {2}",
358// linkedItemFolderId, folderID, agentID);
359//
360// int dummyVersion;
361// InventoryCollection linkedCollection
362// = Fetch(
363// agentID, linkedItemFolderId, ownerID, fetchFolders, fetchItems, sortOrder, out dummyVersion);
364//
365// InventoryFolderBase linkedFolder = new InventoryFolderBase(linkedItemFolderId);
366// linkedFolder.Owner = agentID;
367// linkedFolder = m_InventoryService.GetFolder(linkedFolder);
368//
369//// contents.Folders.AddRange(linkedCollection.Folders);
370//
371// contents.Folders.Add(linkedFolder);
372// contents.Items.AddRange(linkedCollection.Items);
373// }
374// }
375 }
376 }
377 else
378 {
379 // Lost items don't really need a version
380 version = 1;
381 }
382
383 return contents;
384
385 }
386 /// <summary>
387 /// Convert an internal inventory folder object into an LLSD object.
388 /// </summary>
389 /// <param name="invFolder"></param>
390 /// <returns></returns>
391 private LLSDInventoryFolder ConvertInventoryFolder(InventoryFolderBase invFolder)
392 {
393 LLSDInventoryFolder llsdFolder = new LLSDInventoryFolder();
394 llsdFolder.folder_id = invFolder.ID;
395 llsdFolder.parent_id = invFolder.ParentID;
396 llsdFolder.name = invFolder.Name;
397 llsdFolder.type = invFolder.Type;
398 llsdFolder.preferred_type = -1;
399
400 return llsdFolder;
401 }
402
403 /// <summary>
404 /// Convert an internal inventory item object into an LLSD object.
405 /// </summary>
406 /// <param name="invItem"></param>
407 /// <returns></returns>
408 private LLSDInventoryItem ConvertInventoryItem(InventoryItemBase invItem)
409 {
410 LLSDInventoryItem llsdItem = new LLSDInventoryItem();
411 llsdItem.asset_id = invItem.AssetID;
412 llsdItem.created_at = invItem.CreationDate;
413 llsdItem.desc = invItem.Description;
414 llsdItem.flags = (int)invItem.Flags;
415 llsdItem.item_id = invItem.ID;
416 llsdItem.name = invItem.Name;
417 llsdItem.parent_id = invItem.Folder;
418 llsdItem.type = invItem.AssetType;
419 llsdItem.inv_type = invItem.InvType;
420
421 llsdItem.permissions = new LLSDPermissions();
422 llsdItem.permissions.creator_id = invItem.CreatorIdAsUuid;
423 llsdItem.permissions.base_mask = (int)invItem.CurrentPermissions;
424 llsdItem.permissions.everyone_mask = (int)invItem.EveryOnePermissions;
425 llsdItem.permissions.group_id = invItem.GroupID;
426 llsdItem.permissions.group_mask = (int)invItem.GroupPermissions;
427 llsdItem.permissions.is_owner_group = invItem.GroupOwned;
428 llsdItem.permissions.next_owner_mask = (int)invItem.NextPermissions;
429 llsdItem.permissions.owner_id = invItem.Owner;
430 llsdItem.permissions.owner_mask = (int)invItem.CurrentPermissions;
431 llsdItem.sale_info = new LLSDSaleInfo();
432 llsdItem.sale_info.sale_price = invItem.SalePrice;
433 llsdItem.sale_info.sale_type = invItem.SaleType;
434
435 return llsdItem;
436 }
437 }
438} \ No newline at end of file
generated by cgit v1.1 at 2024-07-08 04:30:45 +0000