Initial preparations for CURL and Discord integration.

module/Vendor/WebSocketPP/websocketpp/http/impl/parser.hpp

@@ -0,0 +1,200 @@
+/*
+ * 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 HTTP_PARSER_IMPL_HPP
+#define HTTP_PARSER_IMPL_HPP
+
+#include <algorithm>
+#include <cstdlib>
+#include <istream>
+#include <sstream>
+#include <string>
+
+namespace websocketpp {
+namespace http {
+namespace parser {
+
+inline void parser::set_version(std::string const & version) {
+    m_version = version;
+}
+
+inline std::string const & parser::get_header(std::string const & key) const {
+    header_list::const_iterator h = m_headers.find(key);
+
+    if (h == m_headers.end()) {
+        return empty_header;
+    } else {
+        return h->second;
+    }
+}
+
+inline bool parser::get_header_as_plist(std::string const & key,
+    parameter_list & out) const
+{
+    header_list::const_iterator it = m_headers.find(key);
+
+    if (it == m_headers.end() || it->second.size() == 0) {
+        return false;
+    }
+
+    return this->parse_parameter_list(it->second,out);
+}
+
+inline void parser::append_header(std::string const & key, std::string const &
+    val)
+{
+    if (std::find_if(key.begin(),key.end(),is_not_token_char) != key.end()) {
+        throw exception("Invalid header name",status_code::bad_request);
+    }
+
+    if (this->get_header(key).empty()) {
+        m_headers[key] = val;
+    } else {
+        m_headers[key] += ", " + val;
+    }
+}
+
+inline void parser::replace_header(std::string const & key, std::string const &
+    val)
+{
+    m_headers[key] = val;
+}
+
+inline void parser::remove_header(std::string const & key) {
+    m_headers.erase(key);
+}
+
+inline void parser::set_body(std::string const & value) {
+    if (value.size() == 0) {
+        remove_header("Content-Length");
+        m_body.clear();
+        return;
+    }
+
+    // TODO: should this method respect the max size? If so how should errors
+    // be indicated?
+
+    std::stringstream len;
+    len << value.size();
+    replace_header("Content-Length", len.str());
+    m_body = value;
+}
+
+inline bool parser::parse_parameter_list(std::string const & in,
+    parameter_list & out) const
+{
+    if (in.size() == 0) {
+        return false;
+    }
+
+    std::string::const_iterator it;
+    it = extract_parameters(in.begin(),in.end(),out);
+    return (it == in.begin());
+}
+
+inline bool parser::prepare_body() {
+    if (!get_header("Content-Length").empty()) {
+        std::string const & cl_header = get_header("Content-Length");
+        char * end;
+        
+        // TODO: not 100% sure what the compatibility of this method is. Also,
+        // I believe this will only work up to 32bit sizes. Is there a need for
+        // > 4GiB HTTP payloads?
+        m_body_bytes_needed = std::strtoul(cl_header.c_str(),&end,10);
+        
+        if (m_body_bytes_needed > m_body_bytes_max) {
+            throw exception("HTTP message body too large",
+                status_code::request_entity_too_large);
+        }
+        
+        m_body_encoding = body_encoding::plain;
+        return true;
+    } else if (get_header("Transfer-Encoding") == "chunked") {
+        // TODO
+        //m_body_encoding = body_encoding::chunked;
+        return false;
+    } else {
+        return false;
+    }
+}
+
+inline size_t parser::process_body(char const * buf, size_t len) {
+    if (m_body_encoding == body_encoding::plain) {
+        size_t processed = (std::min)(m_body_bytes_needed,len);
+        m_body.append(buf,processed);
+        m_body_bytes_needed -= processed;
+        return processed;
+    } else if (m_body_encoding == body_encoding::chunked) {
+        // TODO: 
+        throw exception("Unexpected body encoding",
+            status_code::internal_server_error);
+    } else {
+        throw exception("Unexpected body encoding",
+            status_code::internal_server_error);
+    }
+}
+
+inline void parser::process_header(std::string::iterator begin,
+    std::string::iterator end)
+{
+    std::string::iterator cursor = std::search(
+        begin,
+        end,
+        header_separator,
+        header_separator + sizeof(header_separator) - 1
+    );
+
+    if (cursor == end) {
+        throw exception("Invalid header line",status_code::bad_request);
+    }
+
+    append_header(strip_lws(std::string(begin,cursor)),
+                  strip_lws(std::string(cursor+sizeof(header_separator)-1,end)));
+}
+
+inline header_list const & parser::get_headers() const {
+    return m_headers;
+}
+
+inline std::string parser::raw_headers() const {
+    std::stringstream raw;
+
+    header_list::const_iterator it;
+    for (it = m_headers.begin(); it != m_headers.end(); it++) {
+        raw << it->first << ": " << it->second << "\r\n";
+    }
+
+    return raw.str();
+}
+
+
+
+} // namespace parser
+} // namespace http
+} // namespace websocketpp
+
+#endif // HTTP_PARSER_IMPL_HPP

module/Vendor/WebSocketPP/websocketpp/http/impl/request.hpp

@@ -0,0 +1,191 @@
+/*
+ * 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 HTTP_PARSER_REQUEST_IMPL_HPP
+#define HTTP_PARSER_REQUEST_IMPL_HPP
+
+#include <algorithm>
+#include <sstream>
+#include <string>
+
+#include <websocketpp/http/parser.hpp>
+
+namespace websocketpp {
+namespace http {
+namespace parser {
+
+inline size_t request::consume(char const * buf, size_t len) {
+    size_t bytes_processed;
+    
+    if (m_ready) {return 0;}
+    
+    if (m_body_bytes_needed > 0) {
+        bytes_processed = process_body(buf,len);
+        if (body_ready()) {
+            m_ready = true;
+        }
+        return bytes_processed;
+    }
+
+    // copy new header bytes into buffer
+    m_buf->append(buf,len);
+
+    // Search for delimiter in buf. If found read until then. If not read all
+    std::string::iterator begin = m_buf->begin();
+    std::string::iterator end;
+
+    for (;;) {
+        // search for line delimiter
+        end = std::search(
+            begin,
+            m_buf->end(),
+            header_delimiter,
+            header_delimiter+sizeof(header_delimiter)-1
+        );
+        
+        m_header_bytes += (end-begin+sizeof(header_delimiter));
+        
+        if (m_header_bytes > max_header_size) {
+            // exceeded max header size
+            throw exception("Maximum header size exceeded.",
+                status_code::request_header_fields_too_large);
+        }
+
+        if (end == m_buf->end()) {
+            // we are out of bytes. Discard the processed bytes and copy the
+            // remaining unprecessed bytes to the beginning of the buffer
+            std::copy(begin,end,m_buf->begin());
+            m_buf->resize(static_cast<std::string::size_type>(end-begin));
+            m_header_bytes -= m_buf->size();
+
+            return len;
+        }
+
+        //the range [begin,end) now represents a line to be processed.
+        if (end-begin == 0) {
+            // we got a blank line
+            if (m_method.empty() || get_header("Host").empty()) {
+                throw exception("Incomplete Request",status_code::bad_request);
+            }
+
+            bytes_processed = (
+                len - static_cast<std::string::size_type>(m_buf->end()-end)
+                    + sizeof(header_delimiter) - 1
+            );
+
+            // frees memory used temporarily during request parsing
+            m_buf.reset();
+
+            // if this was not an upgrade request and has a content length
+            // continue capturing content-length bytes and expose them as a 
+            // request body.
+            
+            if (prepare_body()) {
+                bytes_processed += process_body(buf+bytes_processed,len-bytes_processed);
+                if (body_ready()) {
+                    m_ready = true;
+                }
+                return bytes_processed;
+            } else {
+                m_ready = true;
+
+                // return number of bytes processed (starting bytes - bytes left)
+                return bytes_processed;
+            }
+        } else {
+            if (m_method.empty()) {
+                this->process(begin,end);
+            } else {
+                this->process_header(begin,end);
+            }
+        }
+
+        begin = end+(sizeof(header_delimiter)-1);
+    }
+}
+
+inline std::string request::raw() const {
+    // TODO: validation. Make sure all required fields have been set?
+    std::stringstream ret;
+
+    ret << m_method << " " << m_uri << " " << get_version() << "\r\n";
+    ret << raw_headers() << "\r\n" << m_body;
+
+    return ret.str();
+}
+
+inline std::string request::raw_head() const {
+    // TODO: validation. Make sure all required fields have been set?
+    std::stringstream ret;
+
+    ret << m_method << " " << m_uri << " " << get_version() << "\r\n";
+    ret << raw_headers() << "\r\n";
+
+    return ret.str();
+}
+
+inline void request::set_method(std::string const & method) {
+    if (std::find_if(method.begin(),method.end(),is_not_token_char) != method.end()) {
+        throw exception("Invalid method token.",status_code::bad_request);
+    }
+
+    m_method = method;
+}
+
+inline void request::set_uri(std::string const & uri) {
+    // TODO: validation?
+    m_uri = uri;
+}
+
+inline void request::process(std::string::iterator begin, std::string::iterator
+    end)
+{
+    std::string::iterator cursor_start = begin;
+    std::string::iterator cursor_end = std::find(begin,end,' ');
+
+    if (cursor_end == end) {
+        throw exception("Invalid request line1",status_code::bad_request);
+    }
+
+    set_method(std::string(cursor_start,cursor_end));
+
+    cursor_start = cursor_end+1;
+    cursor_end = std::find(cursor_start,end,' ');
+
+    if (cursor_end == end) {
+        throw exception("Invalid request line2",status_code::bad_request);
+    }
+
+    set_uri(std::string(cursor_start,cursor_end));
+    set_version(std::string(cursor_end+1,end));
+}
+
+} // namespace parser
+} // namespace http
+} // namespace websocketpp
+
+#endif // HTTP_PARSER_REQUEST_IMPL_HPP

module/Vendor/WebSocketPP/websocketpp/http/impl/response.hpp

@@ -0,0 +1,266 @@
+/*
+ * 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 HTTP_PARSER_RESPONSE_IMPL_HPP
+#define HTTP_PARSER_RESPONSE_IMPL_HPP
+
+#include <algorithm>
+#include <istream>
+#include <sstream>
+#include <string>
+
+#include <websocketpp/http/parser.hpp>
+
+namespace websocketpp {
+namespace http {
+namespace parser {
+
+inline size_t response::consume(char const * buf, size_t len) {
+    if (m_state == DONE) {return 0;}
+
+    if (m_state == BODY) {
+        return this->process_body(buf,len);
+    }
+
+    // copy new header bytes into buffer
+    m_buf->append(buf,len);
+
+    // Search for delimiter in buf. If found read until then. If not read all
+    std::string::iterator begin = m_buf->begin();
+    std::string::iterator end = begin;
+
+
+    for (;;) {
+        // search for delimiter
+        end = std::search(
+            begin,
+            m_buf->end(),
+            header_delimiter,
+            header_delimiter + sizeof(header_delimiter) - 1
+        );
+
+        m_header_bytes += (end-begin+sizeof(header_delimiter));
+        
+        if (m_header_bytes > max_header_size) {
+            // exceeded max header size
+            throw exception("Maximum header size exceeded.",
+                status_code::request_header_fields_too_large);
+        }
+
+        if (end == m_buf->end()) {
+            // we are out of bytes. Discard the processed bytes and copy the
+            // remaining unprecessed bytes to the beginning of the buffer
+            std::copy(begin,end,m_buf->begin());
+            m_buf->resize(static_cast<std::string::size_type>(end-begin));
+
+            m_read += len;
+            m_header_bytes -= m_buf->size();
+
+            return len;
+        }
+
+        //the range [begin,end) now represents a line to be processed.
+
+        if (end-begin == 0) {
+            // we got a blank line
+            if (m_state == RESPONSE_LINE) {
+                throw exception("Incomplete Request",status_code::bad_request);
+            }
+
+            // TODO: grab content-length
+            std::string length = get_header("Content-Length");
+
+            if (length.empty()) {
+                // no content length found, read indefinitely
+                m_read = 0;
+            } else {
+                std::istringstream ss(length);
+
+                if ((ss >> m_read).fail()) {
+                    throw exception("Unable to parse Content-Length header",
+                                    status_code::bad_request);
+                }
+            }
+
+            m_state = BODY;
+
+            // calc header bytes processed (starting bytes - bytes left)
+            size_t read = (
+                len - static_cast<std::string::size_type>(m_buf->end() - end)
+                + sizeof(header_delimiter) - 1
+            );
+
+            // if there were bytes left process them as body bytes
+            if (read < len) {
+                read += this->process_body(buf+read,(len-read));
+            }
+
+            // frees memory used temporarily during header parsing
+            m_buf.reset();
+
+            return read;
+        } else {
+            if (m_state == RESPONSE_LINE) {
+                this->process(begin,end);
+                m_state = HEADERS;
+            } else {
+                this->process_header(begin,end);
+            }
+        }
+
+        begin = end+(sizeof(header_delimiter) - 1);
+    }
+}
+
+inline size_t response::consume(std::istream & s) {
+    char buf[istream_buffer];
+    size_t bytes_read;
+    size_t bytes_processed;
+    size_t total = 0;
+
+    while (s.good()) {
+        s.getline(buf,istream_buffer);
+        bytes_read = static_cast<size_t>(s.gcount());
+
+        if (s.fail() || s.eof()) {
+            bytes_processed = this->consume(buf,bytes_read);
+            total += bytes_processed;
+
+            if (bytes_processed != bytes_read) {
+                // problem
+                break;
+            }
+        } else if (s.bad()) {
+            // problem
+            break;
+        } else {
+            // the delimiting newline was found. Replace the trailing null with
+            // the newline that was discarded, since our raw consume function
+            // expects the newline to be be there.
+            buf[bytes_read-1] = '\n';
+            bytes_processed = this->consume(buf,bytes_read);
+            total += bytes_processed;
+
+            if (bytes_processed != bytes_read) {
+                // problem
+                break;
+            }
+        }
+    }
+
+    return total;
+}
+
+inline std::string response::raw() const {
+    // TODO: validation. Make sure all required fields have been set?
+
+    std::stringstream ret;
+
+    ret << get_version() << " " << m_status_code << " " << m_status_msg;
+    ret << "\r\n" << raw_headers() << "\r\n";
+
+    ret << m_body;
+
+    return ret.str();
+}
+
+inline void response::set_status(status_code::value code) {
+    // TODO: validation?
+    m_status_code = code;
+    m_status_msg = get_string(code);
+}
+
+inline void response::set_status(status_code::value code, std::string const &
+    msg)
+{
+    // TODO: validation?
+    m_status_code = code;
+    m_status_msg = msg;
+}
+
+inline void response::process(std::string::iterator begin,
+    std::string::iterator end)
+{
+    std::string::iterator cursor_start = begin;
+    std::string::iterator cursor_end = std::find(begin,end,' ');
+
+    if (cursor_end == end) {
+        throw exception("Invalid response line",status_code::bad_request);
+    }
+
+    set_version(std::string(cursor_start,cursor_end));
+
+    cursor_start = cursor_end+1;
+    cursor_end = std::find(cursor_start,end,' ');
+
+    if (cursor_end == end) {
+        throw exception("Invalid request line",status_code::bad_request);
+    }
+
+    int code;
+
+    std::istringstream ss(std::string(cursor_start,cursor_end));
+
+    if ((ss >> code).fail()) {
+        throw exception("Unable to parse response code",status_code::bad_request);
+    }
+
+    set_status(status_code::value(code),std::string(cursor_end+1,end));
+}
+
+inline size_t response::process_body(char const * buf, size_t len) {
+    // If no content length was set then we read forever and never set m_ready
+    if (m_read == 0) {
+        //m_body.append(buf,len);
+        //return len;
+        m_state = DONE;
+        return 0;
+    }
+
+    // Otherwise m_read is the number of bytes left.
+    size_t to_read;
+
+    if (len >= m_read) {
+        // if we have more bytes than we need read, read only the amount needed
+        // then set done state
+        to_read = m_read;
+        m_state = DONE;
+    } else {
+        // we need more bytes than are available, read them all
+        to_read = len;
+    }
+
+    m_body.append(buf,to_read);
+    m_read -= to_read;
+    return to_read;
+}
+
+} // namespace parser
+} // namespace http
+} // namespace websocketpp
+
+#endif // HTTP_PARSER_RESPONSE_IMPL_HPP