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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
#include <cstdlib>
#include <sstream>
#include <iostream>
#include <thrift/config.h>
#include <thrift/transport/THttpServer.h>
#include <thrift/transport/TSocket.h>
#if defined(_MSC_VER) || defined(__MINGW32__)
#include <Shlwapi.h>
#endif
namespace apache {
namespace thrift {
namespace transport {
using namespace std;
THttpServer::THttpServer(boost::shared_ptr<TTransport> transport) : THttpTransport(transport) {
}
THttpServer::~THttpServer() {
}
#if defined(_MSC_VER) || defined(__MINGW32__)
#define THRIFT_GMTIME(TM, TIME) gmtime_s(&TM, &TIME)
#define THRIFT_strncasecmp(str1, str2, len) _strnicmp(str1, str2, len)
#define THRIFT_strcasestr(haystack, needle) StrStrIA(haystack, needle)
#else
#define THRIFT_GMTIME(TM, TIME) gmtime_r(&TIME, &TM)
#define THRIFT_strncasecmp(str1, str2, len) strncasecmp(str1, str2, len)
#define THRIFT_strcasestr(haystack, needle) strcasestr(haystack, needle)
#endif
void THttpServer::parseHeader(char* header) {
char* colon = strchr(header, ':');
if (colon == NULL) {
return;
}
size_t sz = colon - header;
char* value = colon + 1;
if (THRIFT_strncasecmp(header, "Transfer-Encoding", sz) == 0) {
if (THRIFT_strcasestr(value, "chunked") != NULL) {
chunked_ = true;
}
} else if (THRIFT_strncasecmp(header, "Content-length", sz) == 0) {
chunked_ = false;
contentLength_ = atoi(value);
} else if (strncmp(header, "X-Forwarded-For", sz) == 0) {
origin_ = value;
}
}
bool THttpServer::parseStatusLine(char* status) {
char* method = status;
char* path = strchr(method, ' ');
if (path == NULL) {
throw TTransportException(string("Bad Status: ") + status);
}
*path = '\0';
while (*(++path) == ' ') {
};
char* http = strchr(path, ' ');
if (http == NULL) {
throw TTransportException(string("Bad Status: ") + status);
}
*http = '\0';
if (strcmp(method, "POST") == 0) {
// POST method ok, looking for content.
return true;
} else if (strcmp(method, "OPTIONS") == 0) {
// preflight OPTIONS method, we don't need further content.
// how to graciously close connection?
uint8_t* buf;
uint32_t len;
writeBuffer_.getBuffer(&buf, &len);
// Construct the HTTP header
std::ostringstream h;
h << "HTTP/1.1 200 OK" << CRLF << "Date: " << getTimeRFC1123() << CRLF
<< "Access-Control-Allow-Origin: *" << CRLF << "Access-Control-Allow-Methods: POST, OPTIONS"
<< CRLF << "Access-Control-Allow-Headers: Content-Type" << CRLF << CRLF;
string header = h.str();
// Write the header, then the data, then flush
transport_->write((const uint8_t*)header.c_str(), static_cast<uint32_t>(header.size()));
transport_->write(buf, len);
transport_->flush();
// Reset the buffer and header variables
writeBuffer_.resetBuffer();
readHeaders_ = true;
return true;
}
throw TTransportException(string("Bad Status (unsupported method): ") + status);
}
void THttpServer::flush() {
// Fetch the contents of the write buffer
uint8_t* buf;
uint32_t len;
writeBuffer_.getBuffer(&buf, &len);
// Construct the HTTP header
std::ostringstream h;
h << "HTTP/1.1 200 OK" << CRLF << "Date: " << getTimeRFC1123() << CRLF << "Server: Thrift/"
<< PACKAGE_VERSION << CRLF << "Access-Control-Allow-Origin: *" << CRLF
<< "Content-Type: application/x-thrift" << CRLF << "Content-Length: " << len << CRLF
<< "Connection: Keep-Alive" << CRLF << CRLF;
string header = h.str();
// Write the header, then the data, then flush
// cast should be fine, because none of "header" is under attacker control
transport_->write((const uint8_t*)header.c_str(), static_cast<uint32_t>(header.size()));
transport_->write(buf, len);
transport_->flush();
// Reset the buffer and header variables
writeBuffer_.resetBuffer();
readHeaders_ = true;
}
std::string THttpServer::getTimeRFC1123() {
static const char* Days[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
static const char* Months[]
= {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
char buff[128];
time_t t = time(NULL);
struct tm tmb;
THRIFT_GMTIME(tmb, t);
sprintf(buff,
"%s, %d %s %d %d:%d:%d GMT",
Days[tmb.tm_wday],
tmb.tm_mday,
Months[tmb.tm_mon],
tmb.tm_year + 1900,
tmb.tm_hour,
tmb.tm_min,
tmb.tm_sec);
return std::string(buff);
}
}
}
} // apache::thrift::transport
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