/// <summary>
/// Attempt to update a document based on the information in the HTTP request
/// </summary>
/// <returns>The resulting status of the operation</returns>
/// <param name="context">The request context</param>
/// <param name="db">The database in which the document exists</param>
/// <param name="docId">The ID of the document being updated</param>
/// <param name="body">The new document body</param>
/// <param name="deleting">Whether or not the document is being deleted</param>
/// <param name="allowConflict">Whether or not to allow a conflict to be inserted</param>
/// <param name="outRev">The resulting revision of the document</param>
public static StatusCode UpdateDocument(ICouchbaseListenerContext context, Database db, string docId, Body body, bool deleting,
bool allowConflict, out RevisionInternal outRev)
{
outRev = null;
if (body != null && !body.IsValidJSON()) {
return StatusCode.BadJson;
}
string prevRevId;
if (!deleting) {
var properties = body.GetProperties();
deleting = properties.GetCast<bool>("_deleted");
if (docId == null) {
// POST's doc ID may come from the _id field of the JSON body.
docId = properties.GetCast<string>("_id");
if (docId == null && deleting) {
return StatusCode.BadId;
}
}
// PUT's revision ID comes from the JSON body.
prevRevId = properties.GetCast<string>("_rev");
} else {
// DELETE's revision ID comes from the ?rev= query param
prevRevId = context.GetQueryParam("rev");
}
// A backup source of revision ID is an If-Match header:
if (prevRevId == null) {
prevRevId = context.IfMatch();
}
if (docId == null && deleting) {
return StatusCode.BadId;
}
RevisionInternal rev = new RevisionInternal(docId, null, deleting);
rev.SetBody(body);
StatusCode status = StatusCode.Created;
try {
if (docId != null && docId.StartsWith("_local")) {
outRev = db.Storage.PutLocalRevision(rev, prevRevId, true); //TODO: Doesn't match iOS
} else {
Status retStatus = new Status();
outRev = db.PutRevision(rev, prevRevId, allowConflict, retStatus);
status = retStatus.Code;
}
} catch(CouchbaseLiteException e) {
status = e.Code;
}
return status;
}
/// <summary>
/// Creates (and executes) a temporary view based on the view function supplied in the JSON request.
/// </summary>
/// <returns>The response state for further HTTP processing</returns>
/// <param name="context">The context of the Couchbase Lite HTTP request</param>
/// <remarks>
/// http://docs.couchdb.org/en/latest/api/database/temp-views.html#post--db-_temp_view
/// </remarks>
public static ICouchbaseResponseState ExecuteTemporaryViewFunction(ICouchbaseListenerContext context)
{
var response = context.CreateResponse();
if (context.RequestHeaders["Content-Type"] == null ||
!context.RequestHeaders["Content-Type"].StartsWith("application/json")) {
response.InternalStatus = StatusCode.UnsupportedType;
return response.AsDefaultState();
}
IEnumerable<byte> json = context.BodyStream.ReadAllBytes();
var requestBody = new Body(json);
if (!requestBody.IsValidJSON()) {
response.InternalStatus = StatusCode.BadJson;
return response.AsDefaultState();
}
var props = requestBody.GetProperties();
if (props == null) {
response.InternalStatus = StatusCode.BadJson;
return response.AsDefaultState();
}
var options = context.QueryOptions;
if (options == null) {
response.InternalStatus = StatusCode.BadRequest;
return response.AsDefaultState();
}
return PerformLogicWithDatabase(context, true, db =>
{
if (context.CacheWithEtag(db.GetLastSequenceNumber().ToString())) {
response.InternalStatus = StatusCode.NotModified;
return response;
}
var view = db.GetView("@@TEMPVIEW@@");
var status = view.Compile(props, "javascript");
if(status.IsError) {
response.InternalStatus = status.Code;
return response;
}
try {
view.UpdateIndex_Internal();
return QueryView(context, null, view, options);
} catch(CouchbaseLiteException e) {
response.InternalStatus = e.CBLStatus.Code;
}
return response;
}).AsDefaultState();
}
/// <summary>
/// Attempt to update a document based on the information in the HTTP request
/// </summary>
/// <returns>The resulting status of the operation</returns>
/// <param name="context">The request context</param>
/// <param name="db">The database in which the document exists</param>
/// <param name="docId">The ID of the document being updated</param>
/// <param name="body">The new document body</param>
/// <param name="deleting">Whether or not the document is being deleted</param>
/// <param name="allowConflict">Whether or not to allow a conflict to be inserted</param>
/// <param name="outRev">The resulting revision of the document</param>
public static StatusCode UpdateDocument(ICouchbaseListenerContext context, Database db, string docId, Body body, bool deleting,
bool allowConflict, out RevisionInternal outRev)
{
outRev = null;
if (body != null && !body.IsValidJSON()) {
return StatusCode.BadJson;
}
string prevRevId;
if (!deleting) {
var properties = body.GetProperties();
deleting = properties.GetCast<bool>("_deleted");
if (docId == null) {
// POST's doc ID may come from the _id field of the JSON body.
docId = properties.CblID();
if (docId == null && deleting) {
return StatusCode.BadId;
}
}
// PUT's revision ID comes from the JSON body.
prevRevId = properties.GetCast<string>("_rev");
} else {
// DELETE's revision ID comes from the ?rev= query param
prevRevId = context.GetQueryParam("rev");
}
// A backup source of revision ID is an If-Match header:
if (prevRevId == null) {
prevRevId = context.IfMatch();
}
if (docId == null && deleting) {
return StatusCode.BadId;
}
RevisionInternal rev = new RevisionInternal(docId, null, deleting);
rev.SetBody(body);
// Check for doc expiration
var expirationTime = default(DateTime?);
var tmp = default(object);
var props = rev.GetProperties();
var hasValue = false;
if(props != null && props.TryGetValue("_exp", out tmp)) {
hasValue = true;
if(tmp != null) {
try {
expirationTime = Convert.ToDateTime(tmp);
} catch(Exception) {
try {
var num = Convert.ToInt64(tmp);
expirationTime = Misc.OffsetFromEpoch(TimeSpan.FromSeconds(num));
} catch(Exception) {
Log.To.Router.E(TAG, "Invalid value for _exp: {0}", tmp);
return StatusCode.BadRequest;
}
}
}
props.Remove("_exp");
rev.SetProperties(props);
}
var castContext = context as ICouchbaseListenerContext2;
var source = castContext != null && !castContext.IsLoopbackRequest ? castContext.Sender : null;
StatusCode status = deleting ? StatusCode.Ok : StatusCode.Created;
try {
if(docId != null && docId.StartsWith("_local")) {
if(expirationTime.HasValue) {
return StatusCode.BadRequest;
}
outRev = db.Storage.PutLocalRevision(rev, prevRevId.AsRevID(), true); //TODO: Doesn't match iOS
} else {
outRev = db.PutRevision(rev, prevRevId.AsRevID(), allowConflict, source);
if(hasValue) {
db.Storage?.SetDocumentExpiration(rev.DocID, expirationTime);
}
}
} catch(CouchbaseLiteException e) {
status = e.Code;
}
return status;
}
