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authorDon Kjer <don@lindenlab.com>2012-11-28 23:46:06 +0000
committerDon Kjer <don@lindenlab.com>2012-11-28 23:46:06 +0000
commit96ef49df75c0248e4843f9a5b53f010b819d59f3 (patch)
tree9f542fae939073bbb39464500d3fd477d1ed5fe5 /indra/llcorehttp/httpresponse.h
parentdc71cae16b9c49a1d6b4d4a888c3a574049fd087 (diff)
parente0432f98ee515f9777604aa784d28b63d2abfe40 (diff)
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+/**
+ * @file httpresponse.h
+ * @brief Public-facing declarations for the HttpResponse class
+ *
+ * $LicenseInfo:firstyear=2012&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2012, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
+ * $/LicenseInfo$
+ */
+
+#ifndef _LLCORE_HTTP_RESPONSE_H_
+#define _LLCORE_HTTP_RESPONSE_H_
+
+
+#include <string>
+
+#include "httpcommon.h"
+
+#include "_refcounted.h"
+
+
+namespace LLCore
+{
+
+class BufferArray;
+class HttpHeaders;
+
+/// HttpResponse is instantiated by the library and handed to
+/// the caller during callbacks to the handler. It supplies
+/// all the status, header and HTTP body data the caller is
+/// interested in. Methods provide simple getters to return
+/// individual pieces of the response.
+///
+/// Typical usage will have the caller interrogate the object
+/// and return from the handler callback. Instances are refcounted
+/// and callers can bump the count and retain the object as needed.
+///
+/// Threading: Not intrinsically thread-safe.
+///
+/// Allocation: Refcounted, heap only. Caller of the constructor
+/// is given a refcount.
+///
+class HttpResponse : public LLCoreInt::RefCounted
+{
+public:
+ HttpResponse();
+
+protected:
+ virtual ~HttpResponse(); // Use release()
+
+ HttpResponse(const HttpResponse &); // Not defined
+ void operator=(const HttpResponse &); // Not defined
+
+public:
+ /// Returns the final status of the requested operation.
+ ///
+ HttpStatus getStatus() const
+ {
+ return mStatus;
+ }
+
+ void setStatus(const HttpStatus & status)
+ {
+ mStatus = status;
+ }
+
+ /// Simple getter for the response body returned as a scatter/gather
+ /// buffer. If the operation doesn't produce data (such as the Null
+ /// or StopThread operations), this may be NULL.
+ ///
+ /// Caller can hold onto the response by incrementing the reference
+ /// count of the returned object.
+ BufferArray * getBody() const
+ {
+ return mBufferArray;
+ }
+
+ /// Set the response data in the instance. Will drop the reference
+ /// count to any existing data and increment the count of that passed
+ /// in. It is legal to set the data to NULL.
+ void setBody(BufferArray * ba);
+
+ /// And a getter for the headers. And as with @see getResponse(),
+ /// if headers aren't available because the operation doesn't produce
+ /// any or delivery of headers wasn't requested in the options, this
+ /// will be NULL.
+ ///
+ /// Caller can hold onto the headers by incrementing the reference
+ /// count of the returned object.
+ HttpHeaders * getHeaders() const
+ {
+ return mHeaders;
+ }
+
+ /// Behaves like @see setResponse() but for header data.
+ void setHeaders(HttpHeaders * headers);
+
+ /// If a 'Range:' header was used, these methods are involved
+ /// in setting and returning data about the actual response.
+ /// If both @offset and @length are returned as 0, we probably
+ /// didn't get a Content-Range header in the response. This
+ /// occurs with various Capabilities-based services and the
+ /// caller is going to have to make assumptions on receipt of
+ /// a 206 status. The @full value may also be zero in cases of
+ /// parsing problems or a wild-carded length response.
+ void getRange(unsigned int * offset, unsigned int * length, unsigned int * full) const
+ {
+ *offset = mReplyOffset;
+ *length = mReplyLength;
+ *full = mReplyFullLength;
+ }
+
+ void setRange(unsigned int offset, unsigned int length, unsigned int full_length)
+ {
+ mReplyOffset = offset;
+ mReplyLength = length;
+ mReplyFullLength = full_length;
+ }
+
+ ///
+ const std::string & getContentType() const
+ {
+ return mContentType;
+ }
+
+ void setContentType(const std::string & con_type)
+ {
+ mContentType = con_type;
+ }
+
+protected:
+ // Response data here
+ HttpStatus mStatus;
+ unsigned int mReplyOffset;
+ unsigned int mReplyLength;
+ unsigned int mReplyFullLength;
+ BufferArray * mBufferArray;
+ HttpHeaders * mHeaders;
+ std::string mContentType;
+};
+
+
+} // end namespace LLCore
+
+#endif // _LLCORE_HTTP_RESPONSE_H_