public AtomicAction ActionToChangeEncryptionKey(SymmetricKey newKey)
{
var retVal = new AtomicAction(() =>
ForestDBBridge.Check(err =>
{
var newc4key = default(C4EncryptionKey);
if (newKey != null)
{
newc4key = new C4EncryptionKey(newKey.KeyData);
}
return(Native.c4db_rekey(Forest, &newc4key, err));
}), null, null);
foreach (var viewName in GetAllViews())
{
var store = GetViewStorage(viewName, false) as ForestDBViewStore;
if (store == null)
{
continue;
}
retVal.AddLogic(store.ActionToChangeEncryptionKey(newKey));
}
return(retVal);
}
private void WithC4Document(string docId, string revId, bool withBody, bool create, C4DocumentActionDelegate block)
{
var doc = default(C4Document *);
try {
doc = (C4Document *)ForestDBBridge.Check(err => Native.c4doc_get(Forest, docId, !create, err));
if (revId != null)
{
ForestDBBridge.Check(err => Native.c4doc_selectRevision(doc, revId, withBody, err));
}
if (withBody)
{
ForestDBBridge.Check(err => Native.c4doc_loadRevisionBody(doc, err));
}
} catch (CBForestException e) {
var is404 = e.Domain == C4ErrorDomain.ForestDB && e.Code == (int)ForestDBStatus.KeyNotFound;
is404 |= e.Domain == C4ErrorDomain.HTTP && e.Code == 404;
var is410 = e.Domain == C4ErrorDomain.HTTP && e.Code == 410; // Body compacted
if (!is404 && !is410)
{
throw;
}
Native.c4doc_free(doc); // In case the failure was in selectRevision
doc = null;
}
try {
block(doc);
} finally {
Native.c4doc_free(doc);
}
}
public void ForceInsert(RevisionInternal inRev, IList <string> revHistory, StoreValidation validationBlock, Uri source)
{
if (_config.HasFlag(C4DatabaseFlags.ReadOnly))
{
throw new CouchbaseLiteException("Attempting to write to a readonly database", StatusCode.Forbidden);
}
var json = Manager.GetObjectMapper().WriteValueAsString(inRev.GetProperties(), true);
var change = default(DocumentChange);
RunInTransaction(() =>
{
// First get the CBForest doc:
WithC4Document(inRev.GetDocId(), null, false, true, doc =>
{
ForestDBBridge.Check(err => Native.c4doc_insertRevisionWithHistory(doc, json, inRev.IsDeleted(),
inRev.GetAttachments() != null, revHistory.ToArray(), err));
// Save updated doc back to the database:
var isWinner = SaveDocument(doc, revHistory[0], inRev.GetProperties());
inRev.SetSequence((long)doc->sequence);
change = ChangeWithNewRevision(inRev, isWinner, doc, source);
});
return(true);
});
if (change != null && Delegate != null)
{
Delegate.DatabaseStorageChanged(change);
}
}
private IDictionary <string, object> GetAllDocsEntry(string docId)
{
var value = default(IDictionary <string, object>);
var existingDoc = default(C4Document *);
try {
existingDoc = (C4Document *)ForestDBBridge.Check(err => Native.c4doc_get(Forest, docId, true, err));
if (existingDoc != null)
{
value = new NonNullDictionary <string, object> {
{ "rev", (string)existingDoc->revID },
{ "deleted", true }
};
}
} catch (CBForestException e) {
if (e.Domain != C4ErrorDomain.ForestDB || e.Code != (int)ForestDBStatus.KeyNotFound)
{
throw;
}
} finally {
Native.c4doc_free(existingDoc);
}
return(value);
}
public bool RunInTransaction(RunInTransactionDelegate block)
{
Log.D(TAG, "BEGIN transaction...");
ForestDBBridge.Check(err => Native.c4db_beginTransaction(Forest, err));
var success = false;
try {
success = block();
} catch (CouchbaseLiteException) {
Log.W(TAG, "Failed to run transaction");
success = false;
throw;
} catch (Exception e) {
success = false;
throw new CouchbaseLiteException("Error running transaction", e)
{
Code = StatusCode.Exception
};
} finally {
Log.D(TAG, "END transaction (success={0})", success);
ForestDBBridge.Check(err => Native.c4db_endTransaction(Forest, success, err));
if (!InTransaction && Delegate != null)
{
Delegate.StorageExitedTransaction(success);
}
}
return(success);
}
private C4View *OpenIndexWithOptions(C4DatabaseFlags options, bool dryRun = false)
{
if (_indexDB == null)
{
_indexDB = (C4View *)ForestDBBridge.Check(err =>
{
var encryptionKey = default(C4EncryptionKey);
if (_dbStorage.EncryptionKey != null)
{
encryptionKey = new C4EncryptionKey(_dbStorage.EncryptionKey.KeyData);
}
return(Native.c4view_open(_dbStorage.Forest, _path, Name, dryRun ? "0" : Delegate.MapVersion, options,
&encryptionKey, err));
});
if (dryRun)
{
ForestDBBridge.Check(err => Native.c4view_close(_indexDB, err));
_indexDB = null;
}
}
return(_indexDB);
}
private void CloseIndex()
{
var indexDB = _indexDB;
_indexDB = null;
if (indexDB != null)
{
Log.D(TAG, "Closing index");
ForestDBBridge.Check(err => Native.c4view_close(indexDB, err));
}
}
public void Close()
{
IsOpen = false;
var connections = _fdbConnections;
_fdbConnections = new ConcurrentDictionary <int, IntPtr>();
foreach (var ptr in connections)
{
ForestDBBridge.Check(err => Native.c4db_close((C4Database *)ptr.Value.ToPointer(), err));
}
}
public RevisionInternal PutLocalRevision(RevisionInternal revision, string prevRevId, bool obeyMVCC)
{
var docId = revision.GetDocId();
if (!docId.StartsWith("_local/"))
{
throw new CouchbaseLiteException("Local revision IDs must start with _local/", StatusCode.BadId);
}
if (revision.IsDeleted())
{
DeleteLocalRevision(docId, prevRevId, obeyMVCC);
return(revision);
}
var result = default(RevisionInternal);
RunInTransaction(() =>
{
var json = Manager.GetObjectMapper().WriteValueAsString(revision.GetProperties(), true);
WithC4Raw(docId, "_local", doc =>
{
var generation = RevisionInternal.GenerationFromRevID(prevRevId);
if (obeyMVCC)
{
if (prevRevId != null)
{
if (prevRevId != (doc != null ? (string)doc->meta : null))
{
throw new CouchbaseLiteException(StatusCode.Conflict);
}
if (generation == 0)
{
throw new CouchbaseLiteException(StatusCode.BadId);
}
}
else if (doc != null)
{
throw new CouchbaseLiteException(StatusCode.Conflict);
}
}
var newRevId = String.Format("{0}-local", ++generation);
ForestDBBridge.Check(err => Native.c4raw_put(Forest, "_local", docId, newRevId, json, err));
result = revision.CopyWithDocID(docId, newRevId);
});
return(true);
});
return(result);
}
public AtomicAction ActionToChangeEncryptionKey(SymmetricKey newKey)
{
return(new AtomicAction(() =>
ForestDBBridge.Check(err =>
{
var newc4key = default(C4EncryptionKey);
if (newKey != null)
{
newc4key = new C4EncryptionKey(newKey.KeyData);
}
return Native.c4view_rekey(_indexDB, &newc4key, err);
}), null, null));
}
private bool SaveDocument(C4Document *doc, string revId, IDictionary <string, object> properties)
{
// Is the new revision the winner?
Native.c4doc_selectCurrentRevision(doc);
bool isWinner = (string)doc->selectedRev.revID == revId;
// Update the documentType:
if (isWinner)
{
var type = properties == null ? null : properties.GetCast <string>("type");
ForestDBBridge.Check(err => Native.c4doc_setType(doc, type, err));
}
// Save:
ForestDBBridge.Check(err => Native.c4doc_save(doc, (uint)MaxRevTreeDepth, err));
return(isWinner);
}
public ICollection <BlobKey> FindAllAttachmentKeys()
{
var keys = new HashSet <BlobKey>();
var options = C4EnumeratorOptions.DEFAULT;
options.flags &= ~C4EnumeratorFlags.IncludeBodies;
options.flags |= C4EnumeratorFlags.IncludeDeleted;
var e = new CBForestDocEnumerator(Forest, null, null, options);
foreach (var next in e)
{
var docInfo = next.DocumentInfo;
if (!docInfo->HasAttachments || (docInfo->IsDeleted && !docInfo->IsConflicted))
{
continue;
}
var doc = next.GetDocument();
// Since db is assumed to have just been compacted, we know that non-current revisions
// won't have any bodies. So only scan the current revs.
do
{
if (doc->selectedRev.IsActive && doc->selectedRev.HasAttachments)
{
ForestDBBridge.Check(err => Native.c4doc_loadRevisionBody(doc, err));
var body = doc->selectedRev.body;
if (body.size > 0)
{
var rev = Manager.GetObjectMapper().ReadValue <IDictionary <string, object> >(body);
foreach (var entry in rev.Get("_attachments").AsDictionary <string, IDictionary <string, object> >())
{
try {
var key = new BlobKey(entry.Value.GetCast <string>("digest"));
keys.Add(key);
} catch (Exception) {
Log.W(TAG, "Invalid digest {0}; skipping", entry.Value.GetCast <string>("digest"));
}
}
}
}
} while(Native.c4doc_selectNextLeafRevision(doc, true, true, null));
}
return(keys);
}
private void WithC4Document(string docId, long sequence, C4DocumentActionDelegate block)
{
var doc = default(C4Document *);
try {
doc = (C4Document *)ForestDBBridge.Check(err => Native.c4doc_getBySequence(Forest, (ulong)sequence, err));
} catch (CBForestException e) {
if (e.Domain != C4ErrorDomain.ForestDB && (ForestDBStatus)e.Code != ForestDBStatus.KeyNotFound)
{
throw;
}
}
try {
block(doc);
} finally {
Native.c4doc_free(doc);
}
}
private void WithC4Raw(string docId, string storeName, C4RawDocumentActionDelegate block)
{
var doc = default(C4RawDocument *);
try {
doc = (C4RawDocument *)ForestDBBridge.Check(err => Native.c4raw_get(Forest, storeName, docId, err));
} catch (CBForestException e) {
if (e.Domain != C4ErrorDomain.ForestDB && (ForestDBStatus)e.Code != ForestDBStatus.KeyNotFound)
{
throw;
}
}
try {
block(doc);
} finally {
Native.c4raw_free(doc);
}
}
public RevisionInternal GetParentRevision(RevisionInternal rev)
{
var retVal = default(RevisionInternal);
WithC4Document(rev.GetDocId(), rev.GetRevId(), false, false, doc =>
{
if (!Native.c4doc_selectParentRevision(doc))
{
return;
}
ForestDBBridge.Check(err => Native.c4doc_loadRevisionBody(doc, err));
retVal = new RevisionInternal((string)doc->docID, (string)doc->selectedRev.revID, doc->selectedRev.IsDeleted);
retVal.SetSequence((long)doc->selectedRev.sequence);
retVal.SetBody(new Body(doc->selectedRev.body));
});
return(retVal);
}
private CBForestQueryEnumerator QueryEnumeratorWithOptions(QueryOptions options)
{
Debug.Assert(_indexDB != null);
var enumerator = default(C4QueryEnumerator *);
using (var startkeydocid_ = new C4String(options.StartKeyDocId))
using (var endkeydocid_ = new C4String(options.EndKeyDocId)) {
WithC4Keys(new object[] { options.StartKey, options.EndKey }, false, startEndKey =>
WithC4Keys(options.Keys == null ? null : options.Keys.ToArray(), true, c4keys =>
{
var opts = C4QueryOptions.DEFAULT;
opts.descending = options.Descending;
opts.endKey = startEndKey[1];
opts.endKeyDocID = endkeydocid_.AsC4Slice();
opts.inclusiveEnd = options.InclusiveEnd;
opts.inclusiveStart = options.InclusiveStart;
if (c4keys != null)
{
opts.keysCount = (uint)c4keys.Length;
}
opts.limit = (ulong)options.Limit;
opts.skip = (ulong)options.Skip;
opts.startKey = startEndKey[0];
opts.startKeyDocID = startkeydocid_.AsC4Slice();
fixed(C4Key * *keysPtr = c4keys)
{
opts.keys = keysPtr;
enumerator = (C4QueryEnumerator *)ForestDBBridge.Check(err => {
var localOpts = opts;
return(Native.c4view_query(_indexDB, &localOpts, err));
});
}
})
);
}
return(new CBForestQueryEnumerator(enumerator));
}
private void DeleteLocalRevision(string docId, string revId, bool obeyMVCC)
{
if (!docId.StartsWith("_local/"))
{
throw new CouchbaseLiteException("Local revision IDs must start with _local/", StatusCode.BadId);
}
if (obeyMVCC && revId == null)
{
// Didn't specify a revision to delete: NotFound or a Conflict, depending
var gotLocalDoc = GetLocalDocument(docId, null);
if (gotLocalDoc == null)
{
throw new CouchbaseLiteException(StatusCode.NotFound);
}
throw new CouchbaseLiteException(StatusCode.Conflict);
}
RunInTransaction(() =>
{
WithC4Raw(docId, "_local", doc =>
{
if (doc == null)
{
throw new CouchbaseLiteException(StatusCode.NotFound);
}
if (obeyMVCC && (revId != (string)doc->meta))
{
throw new CouchbaseLiteException(StatusCode.Conflict);
}
ForestDBBridge.Check(err => Native.c4raw_put(Forest, "_local", docId, null, null, err));
});
return(true);
});
}
private CBForestHistoryEnumerator GetHistoryEnumerator(RevisionInternal rev, int generation)
{
if (generation <= 1)
{
return(null);
}
var doc = default(C4Document *);
try {
doc = (C4Document *)ForestDBBridge.Check(err => Native.c4doc_get(Forest, rev.GetDocId(), true, err));
ForestDBBridge.Check(err => Native.c4doc_selectCurrentRevision(doc));
} catch (CBForestException e) {
if (e.Domain == C4ErrorDomain.ForestDB && e.Code == (int)ForestDBStatus.KeyNotFound)
{
return(null);
}
throw;
}
return(new CBForestHistoryEnumerator(doc, false, true));
}
private C4Database *Reopen()
{
var forestPath = Path.Combine(Directory, DB_FILENAME);
try {
return((C4Database *)ForestDBBridge.Check(err =>
{
var nativeKey = default(C4EncryptionKey);
if (_encryptionKey != null)
{
nativeKey = new C4EncryptionKey(_encryptionKey.KeyData);
}
return Native.c4db_open(forestPath, _config, &nativeKey, err);
}));
} catch (CBForestException e) {
if (e.Domain == C4ErrorDomain.ForestDB && e.Code == (int)ForestDBStatus.NoDbHeaders)
{
throw new CouchbaseLiteException(StatusCode.Unauthorized);
}
throw;
}
}
public IDictionary <string, object> PurgeRevisions(IDictionary <string, IList <string> > docsToRev)
{
// <http://wiki.apache.org/couchdb/Purge_Documents>
IDictionary <string, object> result = new Dictionary <string, object>();
if (docsToRev.Count == 0)
{
return(result);
}
Log.D(TAG, "Purging {0} docs...", docsToRev.Count);
RunInTransaction(() =>
{
foreach (var docRevPair in docsToRev)
{
var docID = docRevPair.Key;
WithC4Document(docID, null, false, false, doc => {;
if (!doc->Exists)
{
throw new CouchbaseLiteException(StatusCode.NotFound);
}
var revsPurged = default(IList <string>);
var revIDs = docRevPair.Value;
if (revIDs.Count == 0)
{
revsPurged = new List <string>();
}
else if (revIDs.Contains("*"))
{
// Delete all revisions if magic "*" revision ID is given:
ForestDBBridge.Check(err => Native.c4db_purgeDoc(Forest, doc->docID, err));
revsPurged = new List <string> {
"*"
};
Log.D(TAG, "Purged document '{0}'", docID);
}
else
{
var purged = new List <string>();
foreach (var revID in revIDs)
{
if (Native.c4doc_purgeRevision(doc, revID, null) > 0)
{
purged.Add(revID);
}
}
if (purged.Count > 0)
{
ForestDBBridge.Check(err => Native.c4doc_save(doc, (uint)MaxRevTreeDepth, err));
Log.D(TAG, "Purged doc '{0}' revs {1}", docID, Manager.GetObjectMapper().WriteValueAsString(revIDs));
}
revsPurged = purged;
}
result[docID] = revsPurged; });
}
return(true);
});
return(result);
}
public void DeleteIndex()
{
ForestDBBridge.Check(err => Native.c4view_eraseIndex(_indexDB, err));
}
public void Compact()
{
ForestDBBridge.Check(err => Native.c4db_compact(Forest, err));
}
public void DeleteView()
{
_dbStorage.ForgetViewStorage(Name);
ForestDBBridge.Check(err => Native.c4view_delete(_indexDB, err));
}
public bool UpdateIndexes(IEnumerable <IViewStore> views)
{
Log.D(TAG, "Checking indexes of ({0}) for {1}", ViewNames(views), Name);
// Creates an array of tuples -> [[view1, view1 last sequence, view1 native handle],
// [view2, view2 last sequence, view2 native handle], ...]
var viewsArray = views.Cast <ForestDBViewStore>().ToArray();
var viewInfo = viewsArray.Select(x => Tuple.Create(x, x.LastSequenceIndexed)).ToArray();
var nativeViews = new C4View *[viewsArray.Length];
for (int i = 0; i < viewsArray.Length; i++)
{
nativeViews[i] = viewsArray[i]._indexDB;
}
var indexer = (C4Indexer *)ForestDBBridge.Check(err => Native.c4indexer_begin(_dbStorage.Forest, nativeViews, err));
var enumerator = new CBForestDocEnumerator(indexer);
var commit = false;
try {
foreach (var next in enumerator)
{
var seq = next.SelectedRev.sequence;
for (int i = 0; i < viewInfo.Length; i++)
{
var info = viewInfo[i];
if (seq <= (ulong)info.Item2)
{
continue; // This view has already indexed this sequence
}
var viewDelegate = info.Item1.Delegate;
if (viewDelegate == null || viewDelegate.Map == null)
{
Log.V(TAG, " {0} has no map block; skipping it", info.Item1.Name);
continue;
}
var rev = new RevisionInternal(next, true);
var keys = new List <object>();
var values = new List <string>();
try {
viewDelegate.Map(rev.GetProperties(), (key, value) =>
{
keys.Add(key);
values.Add(Manager.GetObjectMapper().WriteValueAsString(value));
});
} catch (Exception e) {
Log.W(TAG, String.Format("Exception thrown in map function of {0}", info.Item1.Name), e);
continue;
}
WithC4Keys(keys.ToArray(), true, c4keys =>
ForestDBBridge.Check(err => Native.c4indexer_emit(indexer, next.Document, (uint)i, c4keys, values.ToArray(), err))
);
}
}
commit = true;
} catch (Exception e) {
Log.W(TAG, "Error updates indexes", e);
} finally {
ForestDBBridge.Check(err => Native.c4indexer_end(indexer, commit, err));
}
return(true);
}
public void SetInfo(string key, string info)
{
ForestDBBridge.Check(err => Native.c4raw_put(Forest, "info", key, null, info, err));
}
private void LoadRevisionBody(CBForestDocStatus status)
{
ForestDBBridge.Check(err => Native.c4doc_loadRevisionBody(status.GetDocument(), err));
}
private void SelectCurrentRevision(CBForestDocStatus status)
{
ForestDBBridge.Check(err => Native.c4doc_selectCurrentRevision(status.GetDocument()));
}
public RevisionInternal PutRevision(string inDocId, string inPrevRevId, IDictionary <string, object> properties,
bool deleting, bool allowConflict, StoreValidation validationBlock)
{
if (_config.HasFlag(C4DatabaseFlags.ReadOnly))
{
throw new CouchbaseLiteException("Attempting to write to a readonly database", StatusCode.Forbidden);
}
var json = default(string);
if (properties != null)
{
json = Manager.GetObjectMapper().WriteValueAsString(Database.StripDocumentJSON(properties), true);
}
else
{
json = "{}";
}
if (inDocId == null)
{
inDocId = Misc.CreateGUID();
}
var putRev = default(RevisionInternal);
var change = default(DocumentChange);
var success = RunInTransaction(() =>
{
var docId = inDocId;
var prevRevId = inPrevRevId;
var transactionSuccess = false;
WithC4Document(docId, null, false, true, doc =>
{
if (prevRevId != null)
{
// Updating an existing revision; make sure it exists and is a leaf:
ForestDBBridge.Check(err => Native.c4doc_selectRevision(doc, prevRevId, false, err));
if (!allowConflict && !doc->selectedRev.IsLeaf)
{
throw new CouchbaseLiteException(StatusCode.Conflict);
}
}
else
{
// No parent revision given:
if (deleting)
{
// Didn't specify a revision to delete: NotFound or a Conflict, depending
throw new CouchbaseLiteException(doc->Exists ? StatusCode.Conflict : StatusCode.NotFound);
}
// If doc exists, current rev must be in a deleted state or there will be a conflict:
if (Native.c4doc_selectCurrentRevision(doc))
{
if (doc->selectedRev.IsDeleted)
{
// New rev will be child of the tombstone:
prevRevId = (string)doc->revID;
}
else
{
throw new CouchbaseLiteException(StatusCode.Conflict);
}
}
}
// Compute the new revID. (Can't be done earlier because prevRevID may have changed.)
var newRevID = Delegate != null ? Delegate.GenerateRevID(Encoding.UTF8.GetBytes(json), deleting, prevRevId) : null;
if (newRevID == null)
{
throw new CouchbaseLiteException(StatusCode.BadId);
}
putRev = new RevisionInternal(docId, newRevID, deleting);
if (properties != null)
{
properties["_id"] = docId;
properties["_rev"] = newRevID;
putRev.SetProperties(properties);
}
// Run any validation blocks:
if (validationBlock != null)
{
var prevRev = default(RevisionInternal);
if (prevRevId != null)
{
prevRev = new RevisionInternal(docId, prevRevId, doc->selectedRev.IsDeleted);
}
var status = validationBlock(putRev, prevRev, prevRevId);
if (status.IsError)
{
throw new CouchbaseLiteException(String.Format("{0} failed validation", putRev),
status.Code);
}
}
// Add the revision to the database:
ForestDBBridge.Check(err => Native.c4doc_insertRevision(doc, newRevID, json, deleting,
putRev.GetAttachments() != null, allowConflict, err));
var isWinner = SaveDocument(doc, newRevID, properties);
putRev.SetSequence((long)doc->sequence);
change = ChangeWithNewRevision(putRev, isWinner, doc, null);
transactionSuccess = true;
});
return(transactionSuccess);
});
if (!success)
{
return(null);
}
if (Delegate != null && change != null)
{
Delegate.DatabaseStorageChanged(change);
}
return(putRev);
}
