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Merge commit '09987d0f9d32e860f1391bb9c75b799501e2d141' as 'Subtrees/websocket'
This commit is contained in:
Vinnie Falco
320
Subtrees/websocket/src/uri.cpp
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320
Subtrees/websocket/src/uri.cpp
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/*
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* Copyright (c) 2011, Peter Thorson. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the WebSocket++ Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "uri.hpp"
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#include <sstream>
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#include <iostream>
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#include <boost/regex.hpp>
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using websocketpp::uri;
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uri::uri(const std::string& uri) {
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// temporary testing non-regex implimentation.
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/*enum state {
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BEGIN = 0,
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HOST_BEGIN = 1,
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READ_IPV6_LITERAL = 2,
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READ_HOSTNAME = 3,
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BEGIN_PORT = 4,
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READ_PORT = 5,
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READ_RESOURCE = 6,
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};
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state the_state = BEGIN;
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std::string temp;
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for (std::string::const_iterator it = uri.begin(); it != uri.end(); it++) {
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switch (the_state) {
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case BEGIN:
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// we are looking for a ws:// or wss://
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if (temp.size() < 6) {
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temp.append(1,*it);
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} else {
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throw websocketpp::uri_exception("Scheme is too long");
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}
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if (temp == "ws://") {
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m_secure = false;
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the_state = HOST_BEGIN;
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temp.clear();
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} else if (temp == "wss://") {
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m_secure = true;
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the_state = HOST_BEGIN;
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temp.clear();
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}
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break;
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case HOST_BEGIN:
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// if character is [ go into IPv6 literal state
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// otherwise go into read hostname state
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if (*it == '[') {
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the_state = READ_IPV6_LITERAL;
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} else {
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*it--;
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the_state = READ_HOSTNAME;
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}
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break;
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case READ_IPV6_LITERAL:
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// read 0-9a-fA-F:. until ] or 45 characters have been read
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if (*it == ']') {
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the_state = BEGIN_PORT;
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break;
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}
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if (m_host.size() > 45) {
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throw websocketpp::uri_exception("IPv6 literal is too long");
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}
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if (*it == '.' ||
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*it == ':' ||
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(*it >= '0' && *it <= '9') ||
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(*it >= 'a' && *it <= 'f') ||
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(*it >= 'A' && *it <= 'F'))
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{
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m_host.append(1,*it);
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}
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break;
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case READ_HOSTNAME:
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//
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if (*it == ':') {
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it--;
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the_state = BEGIN_PORT;
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break;
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}
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if (*it == '/') {
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it--;
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the_state = BEGIN_PORT;
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break;
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}
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// TODO: max url length?
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// TODO: check valid characters?
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if (1) {
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m_host.append(1,*it);
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}
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break;
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case BEGIN_PORT:
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if (*it == ':') {
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the_state = READ_PORT;
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} else if (*it == '/') {
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m_port = get_port_from_string("");
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*it--;
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the_state = READ_RESOURCE;
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} else {
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throw websocketpp::uri_exception("Error parsing WebSocket URI");
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}
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break;
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case READ_PORT:
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if (*it >= '0' && *it <= '9') {
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if (temp.size() < 5) {
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temp.append(1,*it);
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} else {
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throw websocketpp::uri_exception("Port is too long");
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}
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} else if (*it == '/') {
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m_port = get_port_from_string(temp);
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temp.clear();
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*it--;
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the_state = READ_RESOURCE;
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} else {
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throw websocketpp::uri_exception("Error parsing WebSocket URI");
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}
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break;
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case READ_RESOURCE:
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// max length check?
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if (*it == '#') {
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throw websocketpp::uri_exception("WebSocket URIs cannot have fragments");
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} else {
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m_resource.append(1,*it);
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}
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break;
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}
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}
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switch (the_state) {
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case READ_PORT:
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m_port = get_port_from_string(temp);
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break;
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default:
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break;
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}
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if (m_resource == "") {
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m_resource = "/";
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}*/
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boost::cmatch matches;
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const boost::regex expression("(ws|wss)://([^/:\\[]+|\\[[0-9a-fA-F:.]+\\])(:\\d{1,5})?(/[^#]*)?");
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// TODO: should this split resource into path/query?
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if (boost::regex_match(uri.c_str(), matches, expression)) {
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m_secure = (matches[1] == "wss");
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m_host = matches[2];
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// strip brackets from IPv6 literal URIs
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if (m_host[0] == '[') {
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m_host = m_host.substr(1,m_host.size()-2);
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}
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std::string port(matches[3]);
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if (port != "") {
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// strip off the :
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// this could probably be done with a better regex.
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port = port.substr(1);
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}
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m_port = get_port_from_string(port);
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m_resource = matches[4];
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if (m_resource == "") {
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m_resource = "/";
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}
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return;
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}
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throw websocketpp::uri_exception("Error parsing WebSocket URI");
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}
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uri::uri(bool secure, const std::string& host, uint16_t port, const std::string& resource)
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: m_secure(secure),
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m_host(host),
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m_port(port),
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m_resource(resource == "" ? "/" : resource) {}
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uri::uri(bool secure, const std::string& host, const std::string& resource)
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: m_secure(secure),
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m_host(host),
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m_port(m_secure ? URI_DEFAULT_SECURE_PORT : URI_DEFAULT_PORT),
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m_resource(resource == "" ? "/" : resource) {}
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uri::uri(bool secure,
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const std::string& host,
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const std::string& port,
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const std::string& resource)
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: m_secure(secure),
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m_host(host),
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m_port(get_port_from_string(port)),
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m_resource(resource == "" ? "/" : resource) {}
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/* Slightly cleaner C++11 delegated constructor method
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uri::uri(bool secure,
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const std::string& host,
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uint16_t port,
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const std::string& resource)
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: m_secure(secure),
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m_host(host),
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m_port(port),
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m_resource(resource == "" ? "/" : resource)
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{
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if (m_port > 65535) {
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throw websocketpp::uri_exception("Port must be less than 65535");
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}
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}
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uri::uri(bool secure,
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const std::string& host,
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const std::string& port,
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const std::string& resource)
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: uri(secure, host, get_port_from_string(port), resource) {}
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*/
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bool uri::get_secure() const {
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return m_secure;
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}
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std::string uri::get_host() const {
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return m_host;
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}
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std::string uri::get_host_port() const {
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if (m_port == (m_secure ? URI_DEFAULT_SECURE_PORT : URI_DEFAULT_PORT)) {
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return m_host;
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} else {
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std::stringstream p;
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p << m_host << ":" << m_port;
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return p.str();
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}
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}
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uint16_t uri::get_port() const {
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return m_port;
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}
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std::string uri::get_port_str() const {
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std::stringstream p;
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p << m_port;
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return p.str();
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}
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std::string uri::get_resource() const {
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return m_resource;
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}
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std::string uri::str() const {
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std::stringstream s;
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s << "ws" << (m_secure ? "s" : "") << "://" << m_host;
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if (m_port != (m_secure ? URI_DEFAULT_SECURE_PORT : URI_DEFAULT_PORT)) {
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s << ":" << m_port;
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}
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s << m_resource;
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return s.str();
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}
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uint16_t uri::get_port_from_string(const std::string& port) const {
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if (port == "") {
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return (m_secure ? URI_DEFAULT_SECURE_PORT : URI_DEFAULT_PORT);
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}
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unsigned int t_port = atoi(port.c_str());
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if (t_port > 65535) {
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throw websocketpp::uri_exception("Port must be less than 65535");
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}
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if (t_port == 0) {
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throw websocketpp::uri_exception("Error parsing port string: "+port);
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}
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return static_cast<uint16_t>(t_port);
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}
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