#include "RPC.h" #include "BitcoinUtil.h" #include "Config.h" #include #include #include #include #include #include "json/json_spirit_reader_template.h" #include "json/json_spirit_writer_template.h" #include "json/json_spirit_utils.h" #include #include using namespace std; using namespace boost; using namespace boost::asio; using namespace json_spirit; Object JSONRPCError(int code, const string& message) { Object error; error.push_back(Pair("code", code)); error.push_back(Pair("message", message)); return error; } // // HTTP protocol // // This ain't Apache. We're just using HTTP header for the length field // and to be compatible with other JSON-RPC implementations. // string createHTTPPost(const string& strMsg, const map& mapRequestHeaders) { ostringstream s; s << "POST / HTTP/1.1\r\n" << "User-Agent: bitcoin-json-rpc/" << FormatFullVersion() << "\r\n" << "Host: 127.0.0.1\r\n" << "Content-Type: application/json\r\n" << "Content-Length: " << strMsg.size() << "\r\n" << "Accept: application/json\r\n"; typedef const pair HeaderType; BOOST_FOREACH(HeaderType& item, mapRequestHeaders) s << item.first << ": " << item.second << "\r\n"; s << "\r\n" << strMsg; return s.str(); } string rfc1123Time() { char buffer[64]; time_t now; time(&now); struct tm* now_gmt = gmtime(&now); string locale(setlocale(LC_TIME, NULL)); setlocale(LC_TIME, "C"); // we want posix (aka "C") weekday/month strings strftime(buffer, sizeof(buffer), "%a, %d %b %Y %H:%M:%S +0000", now_gmt); setlocale(LC_TIME, locale.c_str()); return string(buffer); } string HTTPReply(int nStatus, const string& strMsg) { cout << "HTTP Reply " << nStatus << " " << strMsg << endl; if (nStatus == 401) return strprintf("HTTP/1.0 401 Authorization Required\r\n" "Date: %s\r\n" "Server: bitcoin-json-rpc/%s\r\n" "WWW-Authenticate: Basic realm=\"jsonrpc\"\r\n" "Content-Type: text/html\r\n" "Content-Length: 296\r\n" "\r\n" "\r\n" "\r\n" "\r\n" "Error\r\n" "\r\n" "\r\n" "

401 Unauthorized.

\r\n" "\r\n", rfc1123Time().c_str(), FormatFullVersion().c_str()); string strStatus; if (nStatus == 200) strStatus = "OK"; else if (nStatus == 400) strStatus = "Bad Request"; else if (nStatus == 403) strStatus = "Forbidden"; else if (nStatus == 404) strStatus = "Not Found"; else if (nStatus == 500) strStatus = "Internal Server Error"; return strprintf( "HTTP/1.1 %d %s\r\n" "Date: %s\r\n" "Connection: close\r\n" "Content-Length: %d\r\n" "Content-Type: application/json\r\n" "Server: bitcoin-json-rpc/%s\r\n" "\r\n" "%s", nStatus, strStatus.c_str(), rfc1123Time().c_str(), strMsg.size(), theConfig.VERSION_STR.c_str(), strMsg.c_str()); } int ReadHTTPStatus(std::basic_istream& stream) { string str; getline(stream, str); vector vWords; boost::split(vWords, str, boost::is_any_of(" ")); if (vWords.size() < 2) return 500; return atoi(vWords[1].c_str()); } int ReadHTTPHeader(std::basic_istream& stream, map& mapHeadersRet) { int nLen = 0; loop { string str; std::getline(stream, str); if (str.empty() || str == "\r") break; string::size_type nColon = str.find(":"); if (nColon != string::npos) { string strHeader = str.substr(0, nColon); boost::trim(strHeader); boost::to_lower(strHeader); string strValue = str.substr(nColon+1); boost::trim(strValue); mapHeadersRet[strHeader] = strValue; if (strHeader == "content-length") nLen = atoi(strValue.c_str()); } } return nLen; } int ReadHTTP(std::basic_istream& stream, map& mapHeadersRet, string& strMessageRet) { mapHeadersRet.clear(); strMessageRet = ""; // Read status int nStatus = ReadHTTPStatus(stream); // Read header int nLen = ReadHTTPHeader(stream, mapHeadersRet); if (nLen < 0 || nLen > MAX_SIZE) return 500; // Read message if (nLen > 0) { vector vch(nLen); stream.read(&vch[0], nLen); strMessageRet = string(vch.begin(), vch.end()); } return nStatus; } string DecodeBase64(string s) { BIO *b64, *bmem; char* buffer = static_cast(calloc(s.size(), sizeof(char))); b64 = BIO_new(BIO_f_base64()); BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL); bmem = BIO_new_mem_buf(const_cast(s.c_str()), s.size()); bmem = BIO_push(b64, bmem); BIO_read(bmem, buffer, s.size()); BIO_free_all(bmem); string result(buffer); free(buffer); return result; } /* bool HTTPAuthorized(map& mapHeaders) { string strAuth = mapHeaders["authorization"]; if (strAuth.substr(0,6) != "Basic ") return false; string strUserPass64 = strAuth.substr(6); boost::trim(strUserPass64); string strUserPass = DecodeBase64(strUserPass64); string::size_type nColon = strUserPass.find(":"); if (nColon == string::npos) return false; string strUser = strUserPass.substr(0, nColon); string strPassword = strUserPass.substr(nColon+1); return (strUser == mapArgs["-rpcuser"] && strPassword == mapArgs["-rpcpassword"]); }*/ // // JSON-RPC protocol. Bitcoin speaks version 1.0 for maximum compatibility, // but uses JSON-RPC 1.1/2.0 standards for parts of the 1.0 standard that were // unspecified (HTTP errors and contents of 'error'). // // 1.0 spec: http://json-rpc.org/wiki/specification // 1.2 spec: http://groups.google.com/group/json-rpc/web/json-rpc-over-http // http://www.codeproject.com/KB/recipes/JSON_Spirit.aspx // string JSONRPCRequest(const string& strMethod, const Array& params, const Value& id) { Object request; request.push_back(Pair("method", strMethod)); request.push_back(Pair("params", params)); request.push_back(Pair("id", id)); return write_string(Value(request), false) + "\n"; } string JSONRPCReply(const Value& result, const Value& error, const Value& id) { Object reply; if (error.type() != null_type) reply.push_back(Pair("result", Value::null)); else reply.push_back(Pair("result", result)); reply.push_back(Pair("error", error)); reply.push_back(Pair("id", id)); return write_string(Value(reply), false) + "\n"; } void ErrorReply(std::ostream& stream, const Object& objError, const Value& id) { // Send error reply from json-rpc error object int nStatus = 500; int code = find_value(objError, "code").get_int(); if (code == -32600) nStatus = 400; else if (code == -32601) nStatus = 404; string strReply = JSONRPCReply(Value::null, objError, id); stream << HTTPReply(nStatus, strReply) << std::flush; } template void ConvertTo(Value& value) { if (value.type() == str_type) { // reinterpret string as unquoted json value Value value2; if (!read_string(value.get_str(), value2)) throw runtime_error("type mismatch"); value = value2.get_value(); } else { value = value.get_value(); } }