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280 lines
8.3 KiB
280 lines
8.3 KiB
// Copyright (c) 2010 Satoshi Nakamoto |
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// Copyright (c) 2009-2014 The Bitcoin developers |
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// Distributed under the MIT/X11 software license, see the accompanying |
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// file COPYING or http://www.opensource.org/licenses/mit-license.php. |
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#include "rpcprotocol.h" |
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#include "util.h" |
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#include <stdint.h> |
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#include <boost/algorithm/string.hpp> |
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#include <boost/asio.hpp> |
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#include <boost/asio/ssl.hpp> |
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#include <boost/bind.hpp> |
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#include <boost/filesystem.hpp> |
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#include <boost/foreach.hpp> |
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#include <boost/iostreams/concepts.hpp> |
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#include <boost/iostreams/stream.hpp> |
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#include <boost/shared_ptr.hpp> |
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#include "json/json_spirit_writer_template.h" |
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using namespace std; |
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using namespace boost; |
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using namespace boost::asio; |
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using namespace json_spirit; |
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// Number of bytes to allocate and read at most at once in post data |
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const size_t POST_READ_SIZE = 256 * 1024; |
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// |
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// HTTP protocol |
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// |
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// This ain't Apache. We're just using HTTP header for the length field |
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// and to be compatible with other JSON-RPC implementations. |
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// |
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string HTTPPost(const string& strMsg, const map<string,string>& mapRequestHeaders) |
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{ |
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ostringstream s; |
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s << "POST / HTTP/1.1\r\n" |
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<< "User-Agent: bitcoin-json-rpc/" << FormatFullVersion() << "\r\n" |
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<< "Host: 127.0.0.1\r\n" |
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<< "Content-Type: application/json\r\n" |
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<< "Content-Length: " << strMsg.size() << "\r\n" |
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<< "Connection: close\r\n" |
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<< "Accept: application/json\r\n"; |
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BOOST_FOREACH(const PAIRTYPE(string, string)& item, mapRequestHeaders) |
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s << item.first << ": " << item.second << "\r\n"; |
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s << "\r\n" << strMsg; |
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return s.str(); |
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} |
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static string rfc1123Time() |
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{ |
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return DateTimeStrFormat("%a, %d %b %Y %H:%M:%S +0000", GetTime()); |
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} |
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static const char *httpStatusDescription(int nStatus) |
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{ |
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switch (nStatus) { |
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case HTTP_OK: return "OK"; |
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case HTTP_BAD_REQUEST: return "Bad Request"; |
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case HTTP_FORBIDDEN: return "Forbidden"; |
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case HTTP_NOT_FOUND: return "Not Found"; |
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case HTTP_INTERNAL_SERVER_ERROR: return "Internal Server Error"; |
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default: return ""; |
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} |
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} |
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string HTTPError(int nStatus, bool keepalive, bool headersOnly) |
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{ |
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if (nStatus == HTTP_UNAUTHORIZED) |
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return strprintf("HTTP/1.0 401 Authorization Required\r\n" |
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"Date: %s\r\n" |
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"Server: bitcoin-json-rpc/%s\r\n" |
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"WWW-Authenticate: Basic realm=\"jsonrpc\"\r\n" |
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"Content-Type: text/html\r\n" |
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"Content-Length: 296\r\n" |
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"\r\n" |
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"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\"\r\n" |
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"\"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd\">\r\n" |
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"<HTML>\r\n" |
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"<HEAD>\r\n" |
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"<TITLE>Error</TITLE>\r\n" |
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"<META HTTP-EQUIV='Content-Type' CONTENT='text/html; charset=ISO-8859-1'>\r\n" |
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"</HEAD>\r\n" |
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"<BODY><H1>401 Unauthorized.</H1></BODY>\r\n" |
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"</HTML>\r\n", rfc1123Time(), FormatFullVersion()); |
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return HTTPReply(nStatus, httpStatusDescription(nStatus), keepalive, |
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headersOnly, "text/plain"); |
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} |
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string HTTPReply(int nStatus, const string& strMsg, bool keepalive, |
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bool headersOnly, const char *contentType) |
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{ |
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return strprintf( |
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"HTTP/1.1 %d %s\r\n" |
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"Date: %s\r\n" |
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"Connection: %s\r\n" |
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"Content-Length: %u\r\n" |
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"Content-Type: %s\r\n" |
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"Server: bitcoin-json-rpc/%s\r\n" |
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"\r\n" |
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"%s", |
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nStatus, |
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httpStatusDescription(nStatus), |
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rfc1123Time(), |
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keepalive ? "keep-alive" : "close", |
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(headersOnly ? 0 : strMsg.size()), |
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contentType, |
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FormatFullVersion(), |
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(headersOnly ? "" : strMsg.c_str()) |
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); |
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} |
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bool ReadHTTPRequestLine(std::basic_istream<char>& stream, int &proto, |
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string& http_method, string& http_uri) |
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{ |
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string str; |
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getline(stream, str); |
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// HTTP request line is space-delimited |
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vector<string> vWords; |
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boost::split(vWords, str, boost::is_any_of(" ")); |
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if (vWords.size() < 2) |
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return false; |
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// HTTP methods permitted: GET, POST |
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http_method = vWords[0]; |
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if (http_method != "GET" && http_method != "POST") |
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return false; |
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// HTTP URI must be an absolute path, relative to current host |
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http_uri = vWords[1]; |
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if (http_uri.size() == 0 || http_uri[0] != '/') |
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return false; |
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// parse proto, if present |
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string strProto = ""; |
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if (vWords.size() > 2) |
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strProto = vWords[2]; |
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proto = 0; |
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const char *ver = strstr(strProto.c_str(), "HTTP/1."); |
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if (ver != NULL) |
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proto = atoi(ver+7); |
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return true; |
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} |
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int ReadHTTPStatus(std::basic_istream<char>& stream, int &proto) |
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{ |
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string str; |
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getline(stream, str); |
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vector<string> vWords; |
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boost::split(vWords, str, boost::is_any_of(" ")); |
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if (vWords.size() < 2) |
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return HTTP_INTERNAL_SERVER_ERROR; |
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proto = 0; |
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const char *ver = strstr(str.c_str(), "HTTP/1."); |
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if (ver != NULL) |
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proto = atoi(ver+7); |
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return atoi(vWords[1].c_str()); |
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} |
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int ReadHTTPHeaders(std::basic_istream<char>& stream, map<string, string>& mapHeadersRet) |
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{ |
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int nLen = 0; |
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while (true) |
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{ |
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string str; |
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std::getline(stream, str); |
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if (str.empty() || str == "\r") |
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break; |
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string::size_type nColon = str.find(":"); |
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if (nColon != string::npos) |
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{ |
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string strHeader = str.substr(0, nColon); |
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boost::trim(strHeader); |
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boost::to_lower(strHeader); |
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string strValue = str.substr(nColon+1); |
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boost::trim(strValue); |
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mapHeadersRet[strHeader] = strValue; |
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if (strHeader == "content-length") |
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nLen = atoi(strValue.c_str()); |
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} |
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} |
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return nLen; |
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} |
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int ReadHTTPMessage(std::basic_istream<char>& stream, map<string, |
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string>& mapHeadersRet, string& strMessageRet, |
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int nProto) |
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{ |
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mapHeadersRet.clear(); |
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strMessageRet = ""; |
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// Read header |
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int nLen = ReadHTTPHeaders(stream, mapHeadersRet); |
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if (nLen < 0 || nLen > (int)MAX_SIZE) |
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return HTTP_INTERNAL_SERVER_ERROR; |
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// Read message |
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if (nLen > 0) |
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{ |
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vector<char> vch; |
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size_t ptr = 0; |
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while (ptr < (size_t)nLen) |
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{ |
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size_t bytes_to_read = std::min((size_t)nLen - ptr, POST_READ_SIZE); |
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vch.resize(ptr + bytes_to_read); |
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stream.read(&vch[ptr], bytes_to_read); |
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if (!stream) // Connection lost while reading |
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return HTTP_INTERNAL_SERVER_ERROR; |
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ptr += bytes_to_read; |
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} |
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strMessageRet = string(vch.begin(), vch.end()); |
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} |
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string sConHdr = mapHeadersRet["connection"]; |
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if ((sConHdr != "close") && (sConHdr != "keep-alive")) |
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{ |
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if (nProto >= 1) |
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mapHeadersRet["connection"] = "keep-alive"; |
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else |
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mapHeadersRet["connection"] = "close"; |
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} |
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return HTTP_OK; |
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} |
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// |
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// JSON-RPC protocol. Bitcoin speaks version 1.0 for maximum compatibility, |
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// but uses JSON-RPC 1.1/2.0 standards for parts of the 1.0 standard that were |
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// unspecified (HTTP errors and contents of 'error'). |
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// |
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// 1.0 spec: http://json-rpc.org/wiki/specification |
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// 1.2 spec: http://jsonrpc.org/historical/json-rpc-over-http.html |
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// http://www.codeproject.com/KB/recipes/JSON_Spirit.aspx |
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// |
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string JSONRPCRequest(const string& strMethod, const Array& params, const Value& id) |
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{ |
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Object request; |
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request.push_back(Pair("method", strMethod)); |
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request.push_back(Pair("params", params)); |
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request.push_back(Pair("id", id)); |
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return write_string(Value(request), false) + "\n"; |
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} |
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Object JSONRPCReplyObj(const Value& result, const Value& error, const Value& id) |
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{ |
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Object reply; |
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if (error.type() != null_type) |
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reply.push_back(Pair("result", Value::null)); |
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else |
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reply.push_back(Pair("result", result)); |
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reply.push_back(Pair("error", error)); |
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reply.push_back(Pair("id", id)); |
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return reply; |
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} |
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string JSONRPCReply(const Value& result, const Value& error, const Value& id) |
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{ |
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Object reply = JSONRPCReplyObj(result, error, id); |
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return write_string(Value(reply), false) + "\n"; |
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} |
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Object JSONRPCError(int code, const string& message) |
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{ |
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Object error; |
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error.push_back(Pair("code", code)); |
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error.push_back(Pair("message", message)); |
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return error; |
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}
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