Initial preparations for CURL and Discord integration.

module/Vendor/WebSocketPP/websocketpp/processors/base.hpp

@@ -0,0 +1,299 @@
+/*
+ * Copyright (c) 2014, Peter Thorson. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the WebSocket++ Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef WEBSOCKETPP_PROCESSOR_BASE_HPP
+#define WEBSOCKETPP_PROCESSOR_BASE_HPP
+
+#include <websocketpp/close.hpp>
+#include <websocketpp/utilities.hpp>
+#include <websocketpp/uri.hpp>
+
+#include <websocketpp/common/cpp11.hpp>
+#include <websocketpp/common/system_error.hpp>
+
+#include <string>
+
+namespace websocketpp {
+namespace processor {
+
+/// Constants related to processing WebSocket connections
+namespace constants {
+
+static char const upgrade_token[] = "websocket";
+static char const connection_token[] = "Upgrade";
+static char const handshake_guid[] = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
+
+} // namespace constants
+
+
+/// Processor class related error codes
+namespace error_cat {
+enum value {
+    BAD_REQUEST = 0, // Error was the result of improperly formatted user input
+    INTERNAL_ERROR = 1, // Error was a logic error internal to WebSocket++
+    PROTOCOL_VIOLATION = 2,
+    MESSAGE_TOO_BIG = 3,
+    PAYLOAD_VIOLATION = 4 // Error was due to receiving invalid payload data
+};
+} // namespace error_cat
+
+/// Error code category and codes used by all processor types
+namespace error {
+enum processor_errors {
+    /// Catch-all error for processor policy errors that don't fit in other
+    /// categories
+    general = 1,
+
+    /// Error was the result of improperly formatted user input
+    bad_request,
+
+    /// Processor encountered a protocol violation in an incoming message
+    protocol_violation,
+
+    /// Processor encountered a message that was too large
+    message_too_big,
+
+    /// Processor encountered invalid payload data.
+    invalid_payload,
+
+    /// The processor method was called with invalid arguments
+    invalid_arguments,
+
+    /// Opcode was invalid for requested operation
+    invalid_opcode,
+
+    /// Control frame too large
+    control_too_big,
+
+    /// Illegal use of reserved bit
+    invalid_rsv_bit,
+
+    /// Fragmented control message
+    fragmented_control,
+
+    /// Continuation without message
+    invalid_continuation,
+
+    /// Clients may not send unmasked frames
+    masking_required,
+
+    /// Servers may not send masked frames
+    masking_forbidden,
+
+    /// Payload length not minimally encoded
+    non_minimal_encoding,
+
+    /// Not supported on 32 bit systems
+    requires_64bit,
+
+    /// Invalid UTF-8 encoding
+    invalid_utf8,
+
+    /// Operation required not implemented functionality
+    not_implemented,
+
+    /// Invalid HTTP method
+    invalid_http_method,
+
+    /// Invalid HTTP version
+    invalid_http_version,
+
+    /// Invalid HTTP status
+    invalid_http_status,
+
+    /// Missing Required Header
+    missing_required_header,
+
+    /// Embedded SHA-1 library error
+    sha1_library,
+
+    /// No support for this feature in this protocol version.
+    no_protocol_support,
+
+    /// Reserved close code used
+    reserved_close_code,
+
+    /// Invalid close code used
+    invalid_close_code,
+
+    /// Using a reason requires a close code
+    reason_requires_code,
+
+    /// Error parsing subprotocols
+    subprotocol_parse_error,
+
+    /// Error parsing extensions
+    extension_parse_error,
+
+    /// Extension related operation was ignored because extensions are disabled
+    extensions_disabled,
+    
+    /// Short Ke3 read. Hybi00 requires a third key to be read from the 8 bytes
+    /// after the handshake. Less than 8 bytes were read.
+    short_key3
+};
+
+/// Category for processor errors
+class processor_category : public lib::error_category {
+public:
+    processor_category() {}
+
+    char const * name() const _WEBSOCKETPP_NOEXCEPT_TOKEN_ {
+        return "websocketpp.processor";
+    }
+
+    std::string message(int value) const {
+        switch(value) {
+            case error::general:
+                return "Generic processor error";
+            case error::bad_request:
+                return "invalid user input";
+            case error::protocol_violation:
+                return "Generic protocol violation";
+            case error::message_too_big:
+                return "A message was too large";
+            case error::invalid_payload:
+                return "A payload contained invalid data";
+            case error::invalid_arguments:
+                return "invalid function arguments";
+            case error::invalid_opcode:
+                return "invalid opcode";
+            case error::control_too_big:
+                return "Control messages are limited to fewer than 125 characters";
+            case error::invalid_rsv_bit:
+                return "Invalid use of reserved bits";
+            case error::fragmented_control:
+                return "Control messages cannot be fragmented";
+            case error::invalid_continuation:
+                return "Invalid message continuation";
+            case error::masking_required:
+                return "Clients may not send unmasked frames";
+            case error::masking_forbidden:
+                return "Servers may not send masked frames";
+            case error::non_minimal_encoding:
+                return "Payload length was not minimally encoded";
+            case error::requires_64bit:
+                return "64 bit frames are not supported on 32 bit systems";
+            case error::invalid_utf8:
+                return "Invalid UTF8 encoding";
+            case error::not_implemented:
+                return "Operation required not implemented functionality";
+            case error::invalid_http_method:
+                return "Invalid HTTP method.";
+            case error::invalid_http_version:
+                return "Invalid HTTP version.";
+            case error::invalid_http_status:
+                return "Invalid HTTP status.";
+            case error::missing_required_header:
+                return "A required HTTP header is missing";
+            case error::sha1_library:
+                return "SHA-1 library error";
+            case error::no_protocol_support:
+                return "The WebSocket protocol version in use does not support this feature";
+            case error::reserved_close_code:
+                return "Reserved close code used";
+            case error::invalid_close_code:
+                return "Invalid close code used";
+            case error::reason_requires_code:
+                return "Using a close reason requires a valid close code";
+            case error::subprotocol_parse_error:
+                return "Error parsing subprotocol header";
+            case error::extension_parse_error:
+                return "Error parsing extension header";
+            case error::extensions_disabled:
+                return "Extensions are disabled";
+            case error::short_key3:
+                return "Short Hybi00 Key 3 read";
+            default:
+                return "Unknown";
+        }
+    }
+};
+
+/// Get a reference to a static copy of the processor error category
+inline lib::error_category const & get_processor_category() {
+    static processor_category instance;
+    return instance;
+}
+
+/// Create an error code with the given value and the processor category
+inline lib::error_code make_error_code(error::processor_errors e) {
+    return lib::error_code(static_cast<int>(e), get_processor_category());
+}
+
+/// Converts a processor error_code into a websocket close code
+/**
+ * Looks up the appropriate WebSocket close code that should be sent after an
+ * error of this sort occurred.
+ *
+ * If the error is not in the processor category close::status::blank is
+ * returned.
+ *
+ * If the error isn't normally associated with reasons to close a connection
+ * (such as errors intended to be used internally or delivered to client
+ * applications, ex: invalid arguments) then
+ * close::status::internal_endpoint_error is returned.
+ */
+inline close::status::value to_ws(lib::error_code ec) {
+    if (ec.category() != get_processor_category()) {
+        return close::status::blank;
+    }
+
+    switch (ec.value()) {
+        case error::protocol_violation:
+        case error::control_too_big:
+        case error::invalid_opcode:
+        case error::invalid_rsv_bit:
+        case error::fragmented_control:
+        case error::invalid_continuation:
+        case error::masking_required:
+        case error::masking_forbidden:
+        case error::reserved_close_code:
+        case error::invalid_close_code:
+            return close::status::protocol_error;
+        case error::invalid_payload:
+        case error::invalid_utf8:
+            return close::status::invalid_payload;
+        case error::message_too_big:
+            return close::status::message_too_big;
+        default:
+            return close::status::internal_endpoint_error;
+    }
+}
+
+} // namespace error
+} // namespace processor
+} // namespace websocketpp
+
+_WEBSOCKETPP_ERROR_CODE_ENUM_NS_START_
+template<> struct is_error_code_enum<websocketpp::processor::error::processor_errors>
+{
+    static bool const value = true;
+};
+_WEBSOCKETPP_ERROR_CODE_ENUM_NS_END_
+
+#endif //WEBSOCKETPP_PROCESSOR_BASE_HPP

module/Vendor/WebSocketPP/websocketpp/processors/hybi00.hpp

@@ -0,0 +1,462 @@
+/*
+ * Copyright (c) 2014, Peter Thorson. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the WebSocket++ Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef WEBSOCKETPP_PROCESSOR_HYBI00_HPP
+#define WEBSOCKETPP_PROCESSOR_HYBI00_HPP
+
+#include <websocketpp/frame.hpp>
+#include <websocketpp/http/constants.hpp>
+
+#include <websocketpp/utf8_validator.hpp>
+#include <websocketpp/common/network.hpp>
+#include <websocketpp/common/md5.hpp>
+#include <websocketpp/common/platforms.hpp>
+
+#include <websocketpp/processors/processor.hpp>
+
+#include <algorithm>
+#include <cstdlib>
+#include <string>
+#include <vector>
+
+namespace websocketpp {
+namespace processor {
+
+/// Processor for Hybi Draft version 00
+/**
+ * There are many differences between Hybi 00 and Hybi 13
+ */
+template <typename config>
+class hybi00 : public processor<config> {
+public:
+    typedef processor<config> base;
+
+    typedef typename config::request_type request_type;
+    typedef typename config::response_type response_type;
+
+    typedef typename config::message_type message_type;
+    typedef typename message_type::ptr message_ptr;
+
+    typedef typename config::con_msg_manager_type::ptr msg_manager_ptr;
+
+    explicit hybi00(bool secure, bool p_is_server, msg_manager_ptr manager)
+      : processor<config>(secure, p_is_server)
+      , msg_hdr(0x00)
+      , msg_ftr(0xff)
+      , m_state(HEADER)
+      , m_msg_manager(manager) {}
+
+    int get_version() const {
+        return 0;
+    }
+
+    lib::error_code validate_handshake(request_type const & r) const {
+        if (r.get_method() != "GET") {
+            return make_error_code(error::invalid_http_method);
+        }
+
+        if (r.get_version() != "HTTP/1.1") {
+            return make_error_code(error::invalid_http_version);
+        }
+
+        // required headers
+        // Host is required by HTTP/1.1
+        // Connection is required by is_websocket_handshake
+        // Upgrade is required by is_websocket_handshake
+        if (r.get_header("Sec-WebSocket-Key1").empty() ||
+            r.get_header("Sec-WebSocket-Key2").empty() ||
+            r.get_header("Sec-WebSocket-Key3").empty())
+        {
+            return make_error_code(error::missing_required_header);
+        }
+
+        return lib::error_code();
+    }
+
+    lib::error_code process_handshake(request_type const & req,
+        std::string const & subprotocol, response_type & res) const
+    {
+        char key_final[16];
+
+        // copy key1 into final key
+        decode_client_key(req.get_header("Sec-WebSocket-Key1"), &key_final[0]);
+
+        // copy key2 into final key
+        decode_client_key(req.get_header("Sec-WebSocket-Key2"), &key_final[4]);
+
+        // copy key3 into final key
+        // key3 should be exactly 8 bytes. If it is more it will be truncated
+        // if it is less the final key will almost certainly be wrong.
+        // TODO: decide if it is best to silently fail here or produce some sort
+        //       of warning or exception.
+        std::string const & key3 = req.get_header("Sec-WebSocket-Key3");
+        std::copy(key3.c_str(),
+                  key3.c_str()+(std::min)(static_cast<size_t>(8), key3.size()),
+                  &key_final[8]);
+
+        res.append_header(
+            "Sec-WebSocket-Key3",
+            md5::md5_hash_string(std::string(key_final,16))
+        );
+
+        res.append_header("Upgrade","WebSocket");
+        res.append_header("Connection","Upgrade");
+
+        // Echo back client's origin unless our local application set a
+        // more restrictive one.
+        if (res.get_header("Sec-WebSocket-Origin").empty()) {
+            res.append_header("Sec-WebSocket-Origin",req.get_header("Origin"));
+        }
+
+        // Echo back the client's request host unless our local application
+        // set a different one.
+        if (res.get_header("Sec-WebSocket-Location").empty()) {
+            uri_ptr uri = get_uri(req);
+            res.append_header("Sec-WebSocket-Location",uri->str());
+        }
+
+        if (!subprotocol.empty()) {
+            res.replace_header("Sec-WebSocket-Protocol",subprotocol);
+        }
+
+        return lib::error_code();
+    }
+
+    /// Fill in a set of request headers for a client connection request
+    /**
+     * The Hybi 00 processor only implements incoming connections so this will
+     * always return an error.
+     *
+     * @param [out] req  Set of headers to fill in
+     * @param [in] uri The uri being connected to
+     * @param [in] subprotocols The list of subprotocols to request
+     */
+    lib::error_code client_handshake_request(request_type &, uri_ptr,
+        std::vector<std::string> const &) const
+    {
+        return error::make_error_code(error::no_protocol_support);
+    }
+
+    /// Validate the server's response to an outgoing handshake request
+    /**
+     * The Hybi 00 processor only implements incoming connections so this will
+     * always return an error.
+     *
+     * @param req The original request sent
+     * @param res The reponse to generate
+     * @return An error code, 0 on success, non-zero for other errors
+     */
+    lib::error_code validate_server_handshake_response(request_type const &,
+        response_type &) const
+    {
+        return error::make_error_code(error::no_protocol_support);
+    }
+
+    std::string get_raw(response_type const & res) const {
+        response_type temp = res;
+        temp.remove_header("Sec-WebSocket-Key3");
+        return temp.raw() + res.get_header("Sec-WebSocket-Key3");
+    }
+
+    std::string const & get_origin(request_type const & r) const {
+        return r.get_header("Origin");
+    }
+
+    /// Extracts requested subprotocols from a handshake request
+    /**
+     * hybi00 does support subprotocols
+     * https://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-00#section-1.9
+     *
+     * @param [in] req The request to extract from
+     * @param [out] subprotocol_list A reference to a vector of strings to store
+     * the results in.
+     */
+    lib::error_code extract_subprotocols(request_type const & req,
+        std::vector<std::string> & subprotocol_list)
+    {
+        if (!req.get_header("Sec-WebSocket-Protocol").empty()) {
+            http::parameter_list p;
+
+             if (!req.get_header_as_plist("Sec-WebSocket-Protocol",p)) {
+                 http::parameter_list::const_iterator it;
+
+                 for (it = p.begin(); it != p.end(); ++it) {
+                     subprotocol_list.push_back(it->first);
+                 }
+             } else {
+                 return error::make_error_code(error::subprotocol_parse_error);
+             }
+        }
+        return lib::error_code();
+    }
+
+    uri_ptr get_uri(request_type const & request) const {
+        std::string h = request.get_header("Host");
+
+        size_t last_colon = h.rfind(":");
+        size_t last_sbrace = h.rfind("]");
+
+        // no : = hostname with no port
+        // last : before ] = ipv6 literal with no port
+        // : with no ] = hostname with port
+        // : after ] = ipv6 literal with port
+
+        if (last_colon == std::string::npos ||
+            (last_sbrace != std::string::npos && last_sbrace > last_colon))
+        {
+            return lib::make_shared<uri>(base::m_secure, h, request.get_uri());
+        } else {
+            return lib::make_shared<uri>(base::m_secure,
+                                   h.substr(0,last_colon),
+                                   h.substr(last_colon+1),
+                                   request.get_uri());
+        }
+
+        // TODO: check if get_uri is a full uri
+    }
+
+    /// Get hybi00 handshake key3
+    /**
+     * @todo This doesn't appear to be used anymore. It might be able to be
+     * removed
+     */
+    std::string get_key3() const {
+        return "";
+    }
+
+    /// Process new websocket connection bytes
+    size_t consume(uint8_t * buf, size_t len, lib::error_code & ec) {
+        // if in state header we are expecting a 0x00 byte, if we don't get one
+        // it is a fatal error
+        size_t p = 0; // bytes processed
+        size_t l = 0;
+
+        ec = lib::error_code();
+
+        while (p < len) {
+            if (m_state == HEADER) {
+                if (buf[p] == msg_hdr) {
+                    p++;
+                    m_msg_ptr = m_msg_manager->get_message(frame::opcode::text,1);
+
+                    if (!m_msg_ptr) {
+                        ec = make_error_code(websocketpp::error::no_incoming_buffers);
+                        m_state = FATAL_ERROR;
+                    } else {
+                        m_state = PAYLOAD;
+                    }
+                } else {
+                    ec = make_error_code(error::protocol_violation);
+                    m_state = FATAL_ERROR;
+                }
+            } else if (m_state == PAYLOAD) {
+                uint8_t *it = std::find(buf+p,buf+len,msg_ftr);
+
+                // 0    1    2    3    4    5
+                // 0x00 0x23 0x23 0x23 0xff 0xXX
+
+                // Copy payload bytes into message
+                l = static_cast<size_t>(it-(buf+p));
+                m_msg_ptr->append_payload(buf+p,l);
+                p += l;
+
+                if (it != buf+len) {
+                    // message is done, copy it and the trailing
+                    p++;
+                    // TODO: validation
+                    m_state = READY;
+                }
+            } else {
+                // TODO
+                break;
+            }
+        }
+        // If we get one, we create a new message and move to application state
+
+        // if in state application we are copying bytes into the output message
+        // and validating them for UTF8 until we hit a 0xff byte. Once we hit
+        // 0x00, the message is complete and is dispatched. Then we go back to
+        // header state.
+
+        //ec = make_error_code(error::not_implemented);
+        return p;
+    }
+
+    bool ready() const {
+        return (m_state == READY);
+    }
+
+    bool get_error() const {
+        return false;
+    }
+
+    message_ptr get_message() {
+        message_ptr ret = m_msg_ptr;
+        m_msg_ptr = message_ptr();
+        m_state = HEADER;
+        return ret;
+    }
+
+    /// Prepare a message for writing
+    /**
+     * Performs validation, masking, compression, etc. will return an error if
+     * there was an error, otherwise msg will be ready to be written
+     */
+    virtual lib::error_code prepare_data_frame(message_ptr in, message_ptr out)
+    {
+        if (!in || !out) {
+            return make_error_code(error::invalid_arguments);
+        }
+
+        // TODO: check if the message is prepared already
+
+        // validate opcode
+        if (in->get_opcode() != frame::opcode::text) {
+            return make_error_code(error::invalid_opcode);
+        }
+
+        std::string& i = in->get_raw_payload();
+        //std::string& o = out->get_raw_payload();
+
+        // validate payload utf8
+        if (!utf8_validator::validate(i)) {
+            return make_error_code(error::invalid_payload);
+        }
+
+        // generate header
+        out->set_header(std::string(reinterpret_cast<char const *>(&msg_hdr),1));
+
+        // process payload
+        out->set_payload(i);
+        out->append_payload(std::string(reinterpret_cast<char const *>(&msg_ftr),1));
+
+        // hybi00 doesn't support compression
+        // hybi00 doesn't have masking
+
+        out->set_prepared(true);
+
+        return lib::error_code();
+    }
+
+    /// Prepare a ping frame
+    /**
+     * Hybi 00 doesn't support pings so this will always return an error
+     *
+     * @param in The string to use for the ping payload
+     * @param out The message buffer to prepare the ping in.
+     * @return Status code, zero on success, non-zero on failure
+     */
+    lib::error_code prepare_ping(std::string const &, message_ptr) const
+    {
+        return lib::error_code(error::no_protocol_support);
+    }
+
+    /// Prepare a pong frame
+    /**
+     * Hybi 00 doesn't support pongs so this will always return an error
+     *
+     * @param in The string to use for the pong payload
+     * @param out The message buffer to prepare the pong in.
+     * @return Status code, zero on success, non-zero on failure
+     */
+    lib::error_code prepare_pong(std::string const &, message_ptr) const
+    {
+        return lib::error_code(error::no_protocol_support);
+    }
+
+    /// Prepare a close frame
+    /**
+     * Hybi 00 doesn't support the close code or reason so these parameters are
+     * ignored.
+     *
+     * @param code The close code to send
+     * @param reason The reason string to send
+     * @param out The message buffer to prepare the fame in
+     * @return Status code, zero on success, non-zero on failure
+     */
+    lib::error_code prepare_close(close::status::value, std::string const &, 
+        message_ptr out) const
+    {
+        if (!out) {
+            return lib::error_code(error::invalid_arguments);
+        }
+
+        std::string val;
+        val.append(1,'\xff');
+        val.append(1,'\x00');
+        out->set_payload(val);
+        out->set_prepared(true);
+
+        return lib::error_code();
+    }
+private:
+    void decode_client_key(std::string const & key, char * result) const {
+        unsigned int spaces = 0;
+        std::string digits;
+        uint32_t num;
+
+        // key2
+        for (size_t i = 0; i < key.size(); i++) {
+            if (key[i] == ' ') {
+                spaces++;
+            } else if (key[i] >= '0' && key[i] <= '9') {
+                digits += key[i];
+            }
+        }
+
+        num = static_cast<uint32_t>(strtoul(digits.c_str(), NULL, 10));
+        if (spaces > 0 && num > 0) {
+            num = htonl(num/spaces);
+            std::copy(reinterpret_cast<char*>(&num),
+                      reinterpret_cast<char*>(&num)+4,
+                      result);
+        } else {
+            std::fill(result,result+4,0);
+        }
+    }
+
+    enum state {
+        HEADER = 0,
+        PAYLOAD = 1,
+        READY = 2,
+        FATAL_ERROR = 3
+    };
+
+    uint8_t const msg_hdr;
+    uint8_t const msg_ftr;
+
+    state m_state;
+
+    msg_manager_ptr m_msg_manager;
+    message_ptr m_msg_ptr;
+    utf8_validator::validator m_validator;
+};
+
+} // namespace processor
+} // namespace websocketpp
+
+#endif //WEBSOCKETPP_PROCESSOR_HYBI00_HPP

module/Vendor/WebSocketPP/websocketpp/processors/hybi07.hpp

@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2014, Peter Thorson. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the WebSocket++ Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef WEBSOCKETPP_PROCESSOR_HYBI07_HPP
+#define WEBSOCKETPP_PROCESSOR_HYBI07_HPP
+
+#include <websocketpp/processors/hybi08.hpp>
+
+#include <string>
+#include <vector>
+
+namespace websocketpp {
+namespace processor {
+
+/// Processor for Hybi Draft version 07
+/**
+ * The primary difference between 07 and 08 is a version number.
+ */
+template <typename config>
+class hybi07 : public hybi08<config> {
+public:
+    typedef typename config::request_type request_type;
+
+    typedef typename config::con_msg_manager_type::ptr msg_manager_ptr;
+    typedef typename config::rng_type rng_type;
+
+    explicit hybi07(bool secure, bool p_is_server, msg_manager_ptr manager, rng_type& rng)
+      : hybi08<config>(secure, p_is_server, manager, rng) {}
+
+    /// Fill in a set of request headers for a client connection request
+    /**
+     * The Hybi 07 processor only implements incoming connections so this will
+     * always return an error.
+     *
+     * @param [out] req  Set of headers to fill in
+     * @param [in] uri The uri being connected to
+     * @param [in] subprotocols The list of subprotocols to request
+     */
+    lib::error_code client_handshake_request(request_type &, uri_ptr,
+        std::vector<std::string> const &) const
+    {
+        return error::make_error_code(error::no_protocol_support);
+    }
+
+    int get_version() const {
+        return 7;
+    }
+private:
+};
+
+} // namespace processor
+} // namespace websocketpp
+
+#endif //WEBSOCKETPP_PROCESSOR_HYBI07_HPP

module/Vendor/WebSocketPP/websocketpp/processors/hybi08.hpp

@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2014, Peter Thorson. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the WebSocket++ Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef WEBSOCKETPP_PROCESSOR_HYBI08_HPP
+#define WEBSOCKETPP_PROCESSOR_HYBI08_HPP
+
+#include <websocketpp/processors/hybi13.hpp>
+
+#include <string>
+#include <vector>
+
+namespace websocketpp {
+namespace processor {
+
+/// Processor for Hybi Draft version 08
+/**
+ * The primary difference between 08 and 13 is a different origin header name
+ */
+template <typename config>
+class hybi08 : public hybi13<config> {
+public:
+    typedef hybi08<config> type;
+    typedef typename config::request_type request_type;
+
+    typedef typename config::con_msg_manager_type::ptr msg_manager_ptr;
+    typedef typename config::rng_type rng_type;
+
+    explicit hybi08(bool secure, bool p_is_server, msg_manager_ptr manager, rng_type& rng)
+      : hybi13<config>(secure, p_is_server, manager, rng) {}
+
+    /// Fill in a set of request headers for a client connection request
+    /**
+     * The Hybi 08 processor only implements incoming connections so this will
+     * always return an error.
+     *
+     * @param [out] req  Set of headers to fill in
+     * @param [in] uri The uri being connected to
+     * @param [in] subprotocols The list of subprotocols to request
+     */
+    lib::error_code client_handshake_request(request_type &, uri_ptr,
+        std::vector<std::string> const &) const
+    {
+        return error::make_error_code(error::no_protocol_support);
+    }
+
+    int get_version() const {
+        return 8;
+    }
+
+    std::string const & get_origin(request_type const & r) const {
+        return r.get_header("Sec-WebSocket-Origin");
+    }
+private:
+};
+
+} // namespace processor
+} // namespace websocketpp
+
+#endif //WEBSOCKETPP_PROCESSOR_HYBI08_HPP

module/Vendor/WebSocketPP/websocketpp/processors/processor.hpp

@@ -0,0 +1,407 @@
+/*
+ * Copyright (c) 2015, Peter Thorson. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the WebSocket++ Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef WEBSOCKETPP_PROCESSOR_HPP
+#define WEBSOCKETPP_PROCESSOR_HPP
+
+#include <websocketpp/processors/base.hpp>
+#include <websocketpp/common/system_error.hpp>
+
+#include <websocketpp/close.hpp>
+#include <websocketpp/utilities.hpp>
+#include <websocketpp/uri.hpp>
+
+#include <sstream>
+#include <string>
+#include <utility>
+#include <vector>
+
+namespace websocketpp {
+/// Processors encapsulate the protocol rules specific to each WebSocket version
+/**
+ * The processors namespace includes a number of free functions that operate on
+ * various WebSocket related data structures and perform processing that is not
+ * related to specific versions of the protocol.
+ *
+ * It also includes the abstract interface for the protocol specific processing
+ * engines. These engines wrap all of the logic necessary for parsing and
+ * validating WebSocket handshakes and messages of specific protocol version
+ * and set of allowed extensions.
+ *
+ * An instance of a processor represents the state of a single WebSocket
+ * connection of the associated version. One processor instance is needed per
+ * logical WebSocket connection.
+ */
+namespace processor {
+
+/// Determine whether or not a generic HTTP request is a WebSocket handshake
+/**
+ * @param r The HTTP request to read.
+ *
+ * @return True if the request is a WebSocket handshake, false otherwise
+ */
+template <typename request_type>
+bool is_websocket_handshake(request_type& r) {
+    using utility::ci_find_substr;
+
+    std::string const & upgrade_header = r.get_header("Upgrade");
+
+    if (ci_find_substr(upgrade_header, constants::upgrade_token,
+        sizeof(constants::upgrade_token)-1) == upgrade_header.end())
+    {
+        return false;
+    }
+
+    std::string const & con_header = r.get_header("Connection");
+
+    if (ci_find_substr(con_header, constants::connection_token,
+        sizeof(constants::connection_token)-1) == con_header.end())
+    {
+        return false;
+    }
+
+    return true;
+}
+
+/// Extract the version from a WebSocket handshake request
+/**
+ * A blank version header indicates a spec before versions were introduced.
+ * The only such versions in shipping products are Hixie Draft 75 and Hixie
+ * Draft 76. Draft 75 is present in Chrome 4-5 and Safari 5.0.0, Draft 76 (also
+ * known as hybi 00 is present in Chrome 6-13 and Safari 5.0.1+. As
+ * differentiating between these two sets of browsers is very difficult and
+ * Safari 5.0.1+ accounts for the vast majority of cases in the wild this
+ * function assumes that all handshakes without a valid version header are
+ * Hybi 00.
+ *
+ * @param r The WebSocket handshake request to read.
+ *
+ * @return The WebSocket handshake version or -1 if there was an extraction
+ * error.
+ */
+template <typename request_type>
+int get_websocket_version(request_type& r) {
+    if (!r.ready()) {
+        return -2;
+    }
+    
+    if (r.get_header("Sec-WebSocket-Version").empty()) {
+        return 0;
+    }
+
+    int version;
+    std::istringstream ss(r.get_header("Sec-WebSocket-Version"));
+
+    if ((ss >> version).fail()) {
+        return -1;
+    }
+
+    return version;
+}
+
+/// Extract a URI ptr from the host header of the request
+/**
+ * @param request The request to extract the Host header from.
+ *
+ * @param scheme The scheme under which this request was received (ws, wss,
+ * http, https, etc)
+ *
+ * @return A uri_pointer that encodes the value of the host header.
+ */
+template <typename request_type>
+uri_ptr get_uri_from_host(request_type & request, std::string scheme) {
+    std::string h = request.get_header("Host");
+
+    size_t last_colon = h.rfind(":");
+    size_t last_sbrace = h.rfind("]");
+
+    // no : = hostname with no port
+    // last : before ] = ipv6 literal with no port
+    // : with no ] = hostname with port
+    // : after ] = ipv6 literal with port
+    if (last_colon == std::string::npos ||
+        (last_sbrace != std::string::npos && last_sbrace > last_colon))
+    {
+        return lib::make_shared<uri>(scheme, h, request.get_uri());
+    } else {
+        return lib::make_shared<uri>(scheme,
+                               h.substr(0,last_colon),
+                               h.substr(last_colon+1),
+                               request.get_uri());
+    }
+}
+
+/// WebSocket protocol processor abstract base class
+template <typename config>
+class processor {
+public:
+    typedef processor<config> type;
+    typedef typename config::request_type request_type;
+    typedef typename config::response_type response_type;
+    typedef typename config::message_type::ptr message_ptr;
+    typedef std::pair<lib::error_code,std::string> err_str_pair;
+
+    explicit processor(bool secure, bool p_is_server)
+      : m_secure(secure)
+      , m_server(p_is_server)
+      , m_max_message_size(config::max_message_size)
+    {}
+
+    virtual ~processor() {}
+
+    /// Get the protocol version of this processor
+    virtual int get_version() const = 0;
+
+    /// Get maximum message size
+    /**
+     * Get maximum message size. Maximum message size determines the point at which the
+     * processor will fail a connection with the message_too_big protocol error.
+     *
+     * The default is retrieved from the max_message_size value from the template config
+     *
+     * @since 0.3.0
+     */
+    size_t get_max_message_size() const {
+        return m_max_message_size;
+    }
+    
+    /// Set maximum message size
+    /**
+     * Set maximum message size. Maximum message size determines the point at which the
+     * processor will fail a connection with the message_too_big protocol error.
+     *
+     * The default is retrieved from the max_message_size value from the template config
+     *
+     * @since 0.3.0
+     *
+     * @param new_value The value to set as the maximum message size.
+     */
+    void set_max_message_size(size_t new_value) {
+        m_max_message_size = new_value;
+    }
+
+    /// Returns whether or not the permessage_compress extension is implemented
+    /**
+     * Compile time flag that indicates whether this processor has implemented
+     * the permessage_compress extension. By default this is false.
+     */
+    virtual bool has_permessage_compress() const {
+        return false;
+    }
+
+    /// Initializes extensions based on the Sec-WebSocket-Extensions header
+    /**
+     * Reads the Sec-WebSocket-Extensions header and determines if any of the
+     * requested extensions are supported by this processor. If they are their
+     * settings data is initialized and an extension string to send to the
+     * is returned.
+     *
+     * @param request The request or response headers to look at.
+     */
+    virtual err_str_pair negotiate_extensions(request_type const &) {
+        return err_str_pair();
+    }
+    
+    /// Initializes extensions based on the Sec-WebSocket-Extensions header
+    /**
+     * Reads the Sec-WebSocket-Extensions header and determines if any of the
+     * requested extensions were accepted by the server. If they are their
+     * settings data is initialized. If they are not a list of required
+     * extensions (if any) is returned. This list may be sent back to the server
+     * as a part of the 1010/Extension required close code.
+     *
+     * @param response The request or response headers to look at.
+     */
+    virtual err_str_pair negotiate_extensions(response_type const &) {
+        return err_str_pair();
+    }
+
+    /// validate a WebSocket handshake request for this version
+    /**
+     * @param request The WebSocket handshake request to validate.
+     * is_websocket_handshake(request) must be true and
+     * get_websocket_version(request) must equal this->get_version().
+     *
+     * @return A status code, 0 on success, non-zero for specific sorts of
+     * failure
+     */
+    virtual lib::error_code validate_handshake(request_type const & request) const = 0;
+
+    /// Calculate the appropriate response for this websocket request
+    /**
+     * @param req The request to process
+     *
+     * @param subprotocol The subprotocol in use
+     *
+     * @param res The response to store the processed response in
+     *
+     * @return An error code, 0 on success, non-zero for other errors
+     */
+    virtual lib::error_code process_handshake(request_type const & req,
+        std::string const & subprotocol, response_type& res) const = 0;
+
+    /// Fill in an HTTP request for an outgoing connection handshake
+    /**
+     * @param req The request to process.
+     *
+     * @return An error code, 0 on success, non-zero for other errors
+     */
+    virtual lib::error_code client_handshake_request(request_type & req,
+        uri_ptr uri, std::vector<std::string> const & subprotocols) const = 0;
+
+    /// Validate the server's response to an outgoing handshake request
+    /**
+     * @param req The original request sent
+     * @param res The reponse to generate
+     * @return An error code, 0 on success, non-zero for other errors
+     */
+    virtual lib::error_code validate_server_handshake_response(request_type
+        const & req, response_type & res) const = 0;
+
+    /// Given a completed response, get the raw bytes to put on the wire
+    virtual std::string get_raw(response_type const & request) const = 0;
+
+    /// Return the value of the header containing the CORS origin.
+    virtual std::string const & get_origin(request_type const & request) const = 0;
+
+    /// Extracts requested subprotocols from a handshake request
+    /**
+     * Extracts a list of all subprotocols that the client has requested in the
+     * given opening handshake request.
+     *
+     * @param [in] req The request to extract from
+     * @param [out] subprotocol_list A reference to a vector of strings to store
+     * the results in.
+     */
+    virtual lib::error_code extract_subprotocols(const request_type & req,
+        std::vector<std::string> & subprotocol_list) = 0;
+
+    /// Extracts client uri from a handshake request
+    virtual uri_ptr get_uri(request_type const & request) const = 0;
+
+    /// process new websocket connection bytes
+    /**
+     * WebSocket connections are a continous stream of bytes that must be
+     * interpreted by a protocol processor into discrete frames.
+     *
+     * @param buf Buffer from which bytes should be read.
+     * @param len Length of buffer
+     * @param ec Reference to an error code to return any errors in
+     * @return Number of bytes processed
+     */
+    virtual size_t consume(uint8_t *buf, size_t len, lib::error_code & ec) = 0;
+
+    /// Checks if there is a message ready
+    /**
+     * Checks if the most recent consume operation processed enough bytes to
+     * complete a new WebSocket message. The message can be retrieved by calling
+     * get_message() which will reset the internal state to not-ready and allow
+     * consume to read more bytes.
+     *
+     * @return Whether or not a message is ready.
+     */
+    virtual bool ready() const = 0;
+
+    /// Retrieves the most recently processed message
+    /**
+     * Retrieves a shared pointer to the recently completed message if there is
+     * one. If ready() returns true then there is a message available.
+     * Retrieving the message with get_message will reset the state of ready.
+     * As such, each new message may be retrieved only once. Calling get_message
+     * when there is no message available will result in a null pointer being
+     * returned.
+     *
+     * @return A pointer to the most recently processed message or a null shared
+     *         pointer.
+     */
+    virtual message_ptr get_message() = 0;
+
+    /// Tests whether the processor is in a fatal error state
+    virtual bool get_error() const = 0;
+
+    /// Retrieves the number of bytes presently needed by the processor
+    /// This value may be used as a hint to the transport layer as to how many
+    /// bytes to wait for before running consume again.
+    virtual size_t get_bytes_needed() const {
+        return 1;
+    }
+
+    /// Prepare a data message for writing
+    /**
+     * Performs validation, masking, compression, etc. will return an error if
+     * there was an error, otherwise msg will be ready to be written
+     */
+    virtual lib::error_code prepare_data_frame(message_ptr in, message_ptr out) = 0;
+
+    /// Prepare a ping frame
+    /**
+     * Ping preparation is entirely state free. There is no payload validation
+     * other than length. Payload need not be UTF-8.
+     *
+     * @param in The string to use for the ping payload
+     * @param out The message buffer to prepare the ping in.
+     * @return Status code, zero on success, non-zero on failure
+     */
+    virtual lib::error_code prepare_ping(std::string const & in, message_ptr out) const 
+        = 0;
+
+    /// Prepare a pong frame
+    /**
+     * Pong preparation is entirely state free. There is no payload validation
+     * other than length. Payload need not be UTF-8.
+     *
+     * @param in The string to use for the pong payload
+     * @param out The message buffer to prepare the pong in.
+     * @return Status code, zero on success, non-zero on failure
+     */
+    virtual lib::error_code prepare_pong(std::string const & in, message_ptr out) const 
+        = 0;
+
+    /// Prepare a close frame
+    /**
+     * Close preparation is entirely state free. The code and reason are both
+     * subject to validation. Reason must be valid UTF-8. Code must be a valid
+     * un-reserved WebSocket close code. Use close::status::no_status to
+     * indicate no code. If no code is supplied a reason may not be specified.
+     *
+     * @param code The close code to send
+     * @param reason The reason string to send
+     * @param out The message buffer to prepare the fame in
+     * @return Status code, zero on success, non-zero on failure
+     */
+    virtual lib::error_code prepare_close(close::status::value code,
+        std::string const & reason, message_ptr out) const = 0;
+protected:
+    bool const m_secure;
+    bool const m_server;
+    size_t m_max_message_size;
+};
+
+} // namespace processor
+} // namespace websocketpp
+
+#endif //WEBSOCKETPP_PROCESSOR_HPP