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
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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <boost/algorithm/string.hpp>
#include "rpcserver.h"
#include "streams.h"
#include "utilstrencodings.h"
#include "core/block.h"
#include "core/transaction.h"
#include "version.h"
#include "main.h"
#include "sync.h"
using namespace std;
using namespace json_spirit;
enum RetFormat {
RF_BINARY,
RF_HEX,
RF_JSON,
};
static const struct {
enum RetFormat rf;
const char *name;
} rf_names[] = {
{ RF_BINARY, "binary" }, // default, if match not found
{ RF_HEX, "hex" },
{ RF_JSON, "json" },
};
class RestErr {
public:
enum HTTPStatusCode status;
string message;
};
extern void TxToJSON(const CTransaction& tx, const uint256 hashBlock, Object& entry);
extern Object blockToJSON(const CBlock& block, const CBlockIndex* blockindex);
static RestErr RESTERR(enum HTTPStatusCode status, string message)
{
RestErr re;
re.status = status;
re.message = message;
return re;
}
static enum RetFormat ParseDataFormat(const string& format)
{
for (unsigned int i = 0; i < ARRAYLEN(rf_names); i++)
if (format == rf_names[i].name)
return rf_names[i].rf;
return rf_names[0].rf;
}
static bool ParseHashStr(const string& strReq, uint256& v)
{
if (!IsHex(strReq) || (strReq.size() != 64))
return false;
v.SetHex(strReq);
return true;
}
static bool rest_block(AcceptedConnection *conn,
string& strReq,
map<string, string>& mapHeaders,
bool fRun)
{
vector<string> params;
boost::split(params, strReq, boost::is_any_of("/"));
enum RetFormat rf = ParseDataFormat(params.size() > 1 ? params[1] : string(""));
string hashStr = params[0];
uint256 hash;
if (!ParseHashStr(hashStr, hash))
throw RESTERR(HTTP_BAD_REQUEST, "Invalid hash: " + hashStr);
CBlock block;
CBlockIndex* pblockindex = NULL;
{
LOCK(cs_main);
if (mapBlockIndex.count(hash) == 0)
throw RESTERR(HTTP_NOT_FOUND, hashStr + " not found");
pblockindex = mapBlockIndex[hash];
if (!ReadBlockFromDisk(block, pblockindex))
throw RESTERR(HTTP_NOT_FOUND, hashStr + " not found");
}
CDataStream ssBlock(SER_NETWORK, PROTOCOL_VERSION);
ssBlock << block;
switch (rf) {
case RF_BINARY: {
string binaryBlock = ssBlock.str();
conn->stream() << HTTPReply(HTTP_OK, binaryBlock, fRun, true, "application/octet-stream") << binaryBlock << std::flush;
return true;
}
case RF_HEX: {
string strHex = HexStr(ssBlock.begin(), ssBlock.end()) + "\n";;
conn->stream() << HTTPReply(HTTP_OK, strHex, fRun, false, "text/plain") << std::flush;
return true;
}
case RF_JSON: {
Object objBlock = blockToJSON(block, pblockindex);
string strJSON = write_string(Value(objBlock), false) + "\n";
conn->stream() << HTTPReply(HTTP_OK, strJSON, fRun) << std::flush;
return true;
}
}
// not reached
return true; // continue to process further HTTP reqs on this cxn
}
static bool rest_tx(AcceptedConnection *conn,
string& strReq,
map<string, string>& mapHeaders,
bool fRun)
{
vector<string> params;
boost::split(params, strReq, boost::is_any_of("/"));
enum RetFormat rf = ParseDataFormat(params.size() > 1 ? params[1] : string(""));
string hashStr = params[0];
uint256 hash;
if (!ParseHashStr(hashStr, hash))
throw RESTERR(HTTP_BAD_REQUEST, "Invalid hash: " + hashStr);
CTransaction tx;
uint256 hashBlock = 0;
if (!GetTransaction(hash, tx, hashBlock, true))
throw RESTERR(HTTP_NOT_FOUND, hashStr + " not found");
CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
ssTx << tx;
switch (rf) {
case RF_BINARY: {
string binaryTx = ssTx.str();
conn->stream() << HTTPReply(HTTP_OK, binaryTx, fRun, true, "application/octet-stream") << binaryTx << std::flush;
return true;
}
case RF_HEX: {
string strHex = HexStr(ssTx.begin(), ssTx.end()) + "\n";;
conn->stream() << HTTPReply(HTTP_OK, strHex, fRun, false, "text/plain") << std::flush;
return true;
}
case RF_JSON: {
Object objTx;
TxToJSON(tx, hashBlock, objTx);
string strJSON = write_string(Value(objTx), false) + "\n";
conn->stream() << HTTPReply(HTTP_OK, strJSON, fRun) << std::flush;
return true;
}
}
// not reached
return true; // continue to process further HTTP reqs on this cxn
}
static const struct {
const char *prefix;
bool (*handler)(AcceptedConnection *conn,
string& strURI,
map<string, string>& mapHeaders,
bool fRun);
} uri_prefixes[] = {
{ "/rest/tx/", rest_tx },
{ "/rest/block/", rest_block },
};
bool HTTPReq_REST(AcceptedConnection *conn,
string& strURI,
map<string, string>& mapHeaders,
bool fRun)
{
try {
for (unsigned int i = 0; i < ARRAYLEN(uri_prefixes); i++) {
unsigned int plen = strlen(uri_prefixes[i].prefix);
if (strURI.substr(0, plen) == uri_prefixes[i].prefix) {
string strReq = strURI.substr(plen);
return uri_prefixes[i].handler(conn, strReq, mapHeaders, fRun);
}
}
}
catch (RestErr& re) {
conn->stream() << HTTPReply(re.status, re.message + "\r\n", false, false, "text/plain") << std::flush;
return false;
}
conn->stream() << HTTPError(HTTP_NOT_FOUND, false) << std::flush;
return false;
}
|
