aboutsummaryrefslogtreecommitdiff
path: root/src/rpcclient.cpp
blob: f571ca52d6cbd5716f88a359ee599aaf7eed3f17 (plain)
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
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2013 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 "rpcclient.h"

#include "rpcprotocol.h"
#include "util.h"
#include "ui_interface.h"
#include "chainparams.h" // for Params().RPCPort()

#include <stdint.h>

#include <boost/algorithm/string.hpp>
#include <boost/asio.hpp>
#include <boost/asio/ssl.hpp>
#include <boost/bind.hpp>
#include <boost/filesystem.hpp>
#include <boost/foreach.hpp>
#include <boost/iostreams/concepts.hpp>
#include <boost/iostreams/stream.hpp>
#include <boost/lexical_cast.hpp>
#include <boost/shared_ptr.hpp>
#include "json/json_spirit_writer_template.h"

using namespace std;
using namespace boost;
using namespace boost::asio;
using namespace json_spirit;

Object CallRPC(const string& strMethod, const Array& params)
{
    if (mapArgs["-rpcuser"] == "" && mapArgs["-rpcpassword"] == "")
        throw runtime_error(strprintf(
            _("You must set rpcpassword=<password> in the configuration file:\n%s\n"
              "If the file does not exist, create it with owner-readable-only file permissions."),
                GetConfigFile().string().c_str()));

    // Connect to localhost
    bool fUseSSL = GetBoolArg("-rpcssl", false);
    asio::io_service io_service;
    ssl::context context(io_service, ssl::context::sslv23);
    context.set_options(ssl::context::no_sslv2);
    asio::ssl::stream<asio::ip::tcp::socket> sslStream(io_service, context);
    SSLIOStreamDevice<asio::ip::tcp> d(sslStream, fUseSSL);
    iostreams::stream< SSLIOStreamDevice<asio::ip::tcp> > stream(d);

    bool fWait = GetBoolArg("-rpcwait", false); // -rpcwait means try until server has started
    do {
        bool fConnected = d.connect(GetArg("-rpcconnect", "127.0.0.1"), GetArg("-rpcport", itostr(Params().RPCPort())));
        if (fConnected) break;
        if (fWait)
            MilliSleep(1000);
        else
            throw runtime_error("couldn't connect to server");
    } while (fWait);

    // HTTP basic authentication
    string strUserPass64 = EncodeBase64(mapArgs["-rpcuser"] + ":" + mapArgs["-rpcpassword"]);
    map<string, string> mapRequestHeaders;
    mapRequestHeaders["Authorization"] = string("Basic ") + strUserPass64;

    // Send request
    string strRequest = JSONRPCRequest(strMethod, params, 1);
    string strPost = HTTPPost(strRequest, mapRequestHeaders);
    stream << strPost << std::flush;

    // Receive HTTP reply status
    int nProto = 0;
    int nStatus = ReadHTTPStatus(stream, nProto);

    // Receive HTTP reply message headers and body
    map<string, string> mapHeaders;
    string strReply;
    ReadHTTPMessage(stream, mapHeaders, strReply, nProto);

    if (nStatus == HTTP_UNAUTHORIZED)
        throw runtime_error("incorrect rpcuser or rpcpassword (authorization failed)");
    else if (nStatus >= 400 && nStatus != HTTP_BAD_REQUEST && nStatus != HTTP_NOT_FOUND && nStatus != HTTP_INTERNAL_SERVER_ERROR)
        throw runtime_error(strprintf("server returned HTTP error %d", nStatus));
    else if (strReply.empty())
        throw runtime_error("no response from server");

    // Parse reply
    Value valReply;
    if (!read_string(strReply, valReply))
        throw runtime_error("couldn't parse reply from server");
    const Object& reply = valReply.get_obj();
    if (reply.empty())
        throw runtime_error("expected reply to have result, error and id properties");

    return reply;
}

template<typename T>
void ConvertTo(Value& value, bool fAllowNull=false)
{
    if (fAllowNull && value.type() == null_type)
        return;
    if (value.type() == str_type)
    {
        // reinterpret string as unquoted json value
        Value value2;
        string strJSON = value.get_str();
        if (!read_string(strJSON, value2))
            throw runtime_error(string("Error parsing JSON:")+strJSON);
        ConvertTo<T>(value2, fAllowNull);
        value = value2;
    }
    else
    {
        value = value.get_value<T>();
    }
}

// Convert strings to command-specific RPC representation
Array RPCConvertValues(const std::string &strMethod, const std::vector<std::string> &strParams)
{
    Array params;
    BOOST_FOREACH(const std::string &param, strParams)
        params.push_back(param);

    int n = params.size();

    //
    // Special case non-string parameter types
    //
    if (strMethod == "stop"                   && n > 0) ConvertTo<bool>(params[0]);
    if (strMethod == "getaddednodeinfo"       && n > 0) ConvertTo<bool>(params[0]);
    if (strMethod == "setgenerate"            && n > 0) ConvertTo<bool>(params[0]);
    if (strMethod == "setgenerate"            && n > 1) ConvertTo<boost::int64_t>(params[1]);
    if (strMethod == "getnetworkhashps"       && n > 0) ConvertTo<boost::int64_t>(params[0]);
    if (strMethod == "getnetworkhashps"       && n > 1) ConvertTo<boost::int64_t>(params[1]);
    if (strMethod == "sendtoaddress"          && n > 1) ConvertTo<double>(params[1]);
    if (strMethod == "settxfee"               && n > 0) ConvertTo<double>(params[0]);
    if (strMethod == "getreceivedbyaddress"   && n > 1) ConvertTo<boost::int64_t>(params[1]);
    if (strMethod == "getreceivedbyaccount"   && n > 1) ConvertTo<boost::int64_t>(params[1]);
    if (strMethod == "listreceivedbyaddress"  && n > 0) ConvertTo<boost::int64_t>(params[0]);
    if (strMethod == "listreceivedbyaddress"  && n > 1) ConvertTo<bool>(params[1]);
    if (strMethod == "listreceivedbyaccount"  && n > 0) ConvertTo<boost::int64_t>(params[0]);
    if (strMethod == "listreceivedbyaccount"  && n > 1) ConvertTo<bool>(params[1]);
    if (strMethod == "getbalance"             && n > 1) ConvertTo<boost::int64_t>(params[1]);
    if (strMethod == "getblockhash"           && n > 0) ConvertTo<boost::int64_t>(params[0]);
    if (strMethod == "move"                   && n > 2) ConvertTo<double>(params[2]);
    if (strMethod == "move"                   && n > 3) ConvertTo<boost::int64_t>(params[3]);
    if (strMethod == "sendfrom"               && n > 2) ConvertTo<double>(params[2]);
    if (strMethod == "sendfrom"               && n > 3) ConvertTo<boost::int64_t>(params[3]);
    if (strMethod == "listtransactions"       && n > 1) ConvertTo<boost::int64_t>(params[1]);
    if (strMethod == "listtransactions"       && n > 2) ConvertTo<boost::int64_t>(params[2]);
    if (strMethod == "listaccounts"           && n > 0) ConvertTo<boost::int64_t>(params[0]);
    if (strMethod == "walletpassphrase"       && n > 1) ConvertTo<boost::int64_t>(params[1]);
    if (strMethod == "getblocktemplate"       && n > 0) ConvertTo<Object>(params[0]);
    if (strMethod == "listsinceblock"         && n > 1) ConvertTo<boost::int64_t>(params[1]);
    if (strMethod == "sendmany"               && n > 1) ConvertTo<Object>(params[1]);
    if (strMethod == "sendmany"               && n > 2) ConvertTo<boost::int64_t>(params[2]);
    if (strMethod == "addmultisigaddress"     && n > 0) ConvertTo<boost::int64_t>(params[0]);
    if (strMethod == "addmultisigaddress"     && n > 1) ConvertTo<Array>(params[1]);
    if (strMethod == "createmultisig"         && n > 0) ConvertTo<boost::int64_t>(params[0]);
    if (strMethod == "createmultisig"         && n > 1) ConvertTo<Array>(params[1]);
    if (strMethod == "listunspent"            && n > 0) ConvertTo<boost::int64_t>(params[0]);
    if (strMethod == "listunspent"            && n > 1) ConvertTo<boost::int64_t>(params[1]);
    if (strMethod == "listunspent"            && n > 2) ConvertTo<Array>(params[2]);
    if (strMethod == "getblock"               && n > 1) ConvertTo<bool>(params[1]);
    if (strMethod == "getrawtransaction"      && n > 1) ConvertTo<boost::int64_t>(params[1]);
    if (strMethod == "createrawtransaction"   && n > 0) ConvertTo<Array>(params[0]);
    if (strMethod == "createrawtransaction"   && n > 1) ConvertTo<Object>(params[1]);
    if (strMethod == "signrawtransaction"     && n > 1) ConvertTo<Array>(params[1], true);
    if (strMethod == "signrawtransaction"     && n > 2) ConvertTo<Array>(params[2], true);
    if (strMethod == "sendrawtransaction"     && n > 1) ConvertTo<bool>(params[1], true);
    if (strMethod == "gettxout"               && n > 1) ConvertTo<boost::int64_t>(params[1]);
    if (strMethod == "gettxout"               && n > 2) ConvertTo<bool>(params[2]);
    if (strMethod == "lockunspent"            && n > 0) ConvertTo<bool>(params[0]);
    if (strMethod == "lockunspent"            && n > 1) ConvertTo<Array>(params[1]);
    if (strMethod == "importprivkey"          && n > 2) ConvertTo<bool>(params[2]);
    if (strMethod == "verifychain"            && n > 0) ConvertTo<boost::int64_t>(params[0]);
    if (strMethod == "verifychain"            && n > 1) ConvertTo<boost::int64_t>(params[1]);
    if (strMethod == "keypoolrefill"          && n > 0) ConvertTo<boost::int64_t>(params[0]);
    if (strMethod == "getrawmempool"          && n > 0) ConvertTo<bool>(params[0]);

    return params;
}

int CommandLineRPC(int argc, char *argv[])
{
    string strPrint;
    int nRet = 0;
    try
    {
        // Skip switches
        while (argc > 1 && IsSwitchChar(argv[1][0]))
        {
            argc--;
            argv++;
        }

        // Method
        if (argc < 2)
            throw runtime_error("too few parameters");
        string strMethod = argv[1];

        // Parameters default to strings
        std::vector<std::string> strParams(&argv[2], &argv[argc]);
        Array params = RPCConvertValues(strMethod, strParams);

        // Execute
        Object reply = CallRPC(strMethod, params);

        // Parse reply
        const Value& result = find_value(reply, "result");
        const Value& error  = find_value(reply, "error");

        if (error.type() != null_type)
        {
            // Error
            strPrint = "error: " + write_string(error, false);
            int code = find_value(error.get_obj(), "code").get_int();
            nRet = abs(code);
        }
        else
        {
            // Result
            if (result.type() == null_type)
                strPrint = "";
            else if (result.type() == str_type)
                strPrint = result.get_str();
            else
                strPrint = write_string(result, true);
        }
    }
    catch (boost::thread_interrupted) {
        throw;
    }
    catch (std::exception& e) {
        strPrint = string("error: ") + e.what();
        nRet = 87;
    }
    catch (...) {
        PrintException(NULL, "CommandLineRPC()");
    }

    if (strPrint != "")
    {
        fprintf((nRet == 0 ? stdout : stderr), "%s\n", strPrint.c_str());
    }
    return nRet;
}