Thrift: Add a full-featured JSON protocol for C++.
Summary:
This change adds a new and exciting protocol to Thrift. It uses
RFC-compliant JSON as the wire protocol and is fully human readable.
(once a little whitespace has been inserted.) Unlike the existing
JSON protocol for Java, which is intended to allow Thrift data to be
transferred to scripting languages, this protocol is lossless and fully
read-write. It was written by Chad Walters of Powerset and reviewed
by David Reiss.
Tested by running make check.
git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@665482 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/cpp/src/protocol/TBase64Utils.cpp b/lib/cpp/src/protocol/TBase64Utils.cpp
new file mode 100644
index 0000000..ff195c5
--- /dev/null
+++ b/lib/cpp/src/protocol/TBase64Utils.cpp
@@ -0,0 +1,58 @@
+// Copyright (c) 2006- Facebook
+// Distributed under the Thrift Software License
+//
+// See accompanying file LICENSE or visit the Thrift site at:
+// http://developers.facebook.com/thrift/
+
+#include "TBase64Utils.h"
+
+#include <boost/static_assert.hpp>
+
+using std::string;
+
+namespace facebook { namespace thrift { namespace protocol {
+
+
+static const uint8_t *kBase64EncodeTable = (const uint8_t *)
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+void base64_encode(const uint8_t *in, uint32_t len, uint8_t *buf) {
+ buf[0] = kBase64EncodeTable[(in[0] >> 2) & 0x3F];
+ if (len == 3) {
+ buf[1] = kBase64EncodeTable[((in[0] << 4) + (in[1] >> 4)) & 0x3f];
+ buf[2] = kBase64EncodeTable[((in[1] << 2) + (in[2] >> 6)) & 0x3f];
+ buf[3] = kBase64EncodeTable[in[2] & 0x3f];
+ } else if (len == 2) {
+ buf[1] = kBase64EncodeTable[((in[0] << 4) + (in[1] >> 4)) & 0x3f];
+ buf[2] = kBase64EncodeTable[(in[1] << 2) & 0x3f];
+ } else { // len == 1
+ buf[1] = kBase64EncodeTable[(in[0] << 4) & 0x3f];
+ }
+}
+
+static const uint8_t kBase64DecodeTable[128] ={
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,
+ 52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,
+ -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,
+ 15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,
+ -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,
+ 41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1
+};
+
+void base64_decode(uint8_t *buf, uint32_t len) {
+ buf[0] = (kBase64DecodeTable[buf[0]] << 2) |
+ (kBase64DecodeTable[buf[1]] >> 4);
+ if (len > 2) {
+ buf[1] = ((kBase64DecodeTable[buf[1]] << 4) & 0xf0) |
+ (kBase64DecodeTable[buf[2]] >> 2);
+ if (len > 3) {
+ buf[2] = ((kBase64DecodeTable[buf[2]] << 6) & 0xc0) |
+ (kBase64DecodeTable[buf[3]]);
+ }
+ }
+}
+
+
+}}} // facebook::thrift::protocol