Files
MaxScale/server/core/httprequest.cc
Markus Mäkelä c937457738 MXS-1220: Add request body parsing
The HTTP request body is expected to be a valid JSON object. All other
requests are considered malformed requests and result in a HTTP 400 error.

Added the Jansson license to the LICENSE-THIRDPARTY.TXT file. Imported
some of the tests from the Jansson test suite to the HttpParser test.
2017-05-04 09:10:32 +03:00

144 lines
3.3 KiB
C++

/*
* Copyright (c) 2016 MariaDB Corporation Ab
*
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
*
* Change Date: 2019-07-01
*
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2 or later of the General
* Public License.
*/
#include "maxscale/httprequest.hh"
#include <ctype.h>
/** TODO: Move this to a C++ string utility header */
namespace maxscale
{
static inline string& trim(string& str)
{
if (str.length())
{
if (isspace(*str.begin()))
{
string::iterator it = str.begin();
while (it != str.end() && isspace(*it))
{
it++;
}
str.erase(str.begin(), it);
}
if (isspace(*str.rbegin()))
{
string::reverse_iterator it = str.rbegin();
while (it != str.rend() && isspace(*it))
{
it++;
}
str.erase(it.base(), str.end());
}
}
return str;
}
}
HttpRequest* HttpRequest::parse(string data)
{
size_t pos = data.find("\r\n");
string request_line = data.substr(0, pos);
data.erase(0, pos + 2);
pos = request_line.find(" ");
string verb = request_line.substr(0, pos);
request_line.erase(0, pos + 1);
pos = request_line.find(" ");
string uri = request_line.substr(0, pos);
request_line.erase(0, pos + 1);
pos = request_line.find("\r\n");
string http_version = request_line.substr(0, pos);
request_line.erase(0, pos + 2);
map<string, string> headers;
while ((pos = data.find("\r\n")) != string::npos)
{
string header_line = data.substr(0, pos);
data.erase(0, pos + 2);
if (header_line.length() == 0)
{
/** End of headers */
break;
}
if ((pos = header_line.find(":")) != string::npos)
{
string key = header_line.substr(0, pos);
header_line.erase(0, pos + 1);
headers[key] = mxs::trim(header_line);
}
}
/** The headers are now processed and consumed. The message body is
* the only thing left in the request string. */
bool ok = false;
HttpRequest* request = NULL;
enum http_verb verb_value = string_to_http_verb(verb);
json_error_t json_error = {};
json_t* body = NULL;
/** Remove leading and trailing whitespace */
if (data.length())
{
mxs::trim(data);
}
if (http_version == "HTTP/1.1" && verb_value != HTTP_UNKNOWN)
{
if (data.length() && (body = json_loads(data.c_str(), 0, &json_error)) == NULL)
{
MXS_DEBUG("JSON error in input on line %d column %d: %s (%s)",
json_error.line, json_error.column, json_error.text,
data.c_str());
}
else
{
ok = true;
}
}
if (ok)
{
request = new HttpRequest();
request->m_verb = verb_value;
request->m_resource = uri;
request->m_headers = headers;
request->m_json.reset(body);
request->m_json_string = data;
}
return request;
}
HttpRequest::HttpRequest():
m_json(NULL),
m_verb(HTTP_UNKNOWN)
{
}
HttpRequest::~HttpRequest()
{
}