mariadb/plugin/feedback/url_base.cc

/* Copyright (C) 2010 Sergei Golubchik and Monty Program Ab

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */

#include "feedback.h"

namespace feedback {

Url* http_create(const char *url, size_t url_length);

/**
  creates an Url object out of an url, if possible.

  This is done by invoking corresponding creator functions
  of the derived classes, until the first not NULL result.
*/
Url* Url::create(const char *url, size_t url_length)
{
  url= my_strndup(PSI_INSTRUMENT_ME, url, url_length, MYF(MY_WME));
  
  if (!url)
    return NULL;

  Url *self= http_create(url, url_length);

  /*
    here we can add

    if (!self) self= smtp_create(url, url_length);
    if (!self) self= tftp_create(url, url_length);
    etc
  */

  if (!self)
    my_free(const_cast<char*>(url));

  return self;
}

int Url::parse_proxy_server(const char *proxy_server, size_t proxy_length,
                            LEX_STRING *host, LEX_STRING *port)
{
  const char *s;

  host->length= 0;
  if (proxy_server == NULL)
    return 0;

  for (; proxy_length > 0 && my_isspace(system_charset_info, *proxy_server);
         proxy_server++, proxy_length--) /* no-op */;

  if (proxy_length == 0)
    return 0;

  for (s=proxy_server; *s && *s != ':'; s++) /* no-op */;

  host->str= const_cast<char*>(proxy_server);
  if ((host->length= s-proxy_server) == 0)
    return 0;

  port->length= 0;

  if (*s == ':')
  {
    s++;
    port->str= const_cast<char*>(s);
    while (*s >= '0' && *s <= '9')
    {
      s++;
      port->length++;
    }
  }

  if (port->length == 0)
  {
    port->str= const_cast<char*>("80");
    port->length= 2;
  }

  host->str= my_strndup(PSI_INSTRUMENT_ME, host->str, host->length, MYF(MY_WME));
  port->str= my_strndup(PSI_INSTRUMENT_ME, port->str, port->length, MYF(MY_WME));
  return 0;
}

} // namespace feedback