This file is indexed.

/usr/include/websocketpp/http/impl/request.hpp is in libwebsocketpp-dev 0.7.0-7.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
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