RequestParser.h

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/*
 * Copyright (C) 1996-2021 The Squid Software Foundation and contributors
 *
 * Squid software is distributed under GPLv2+ license and includes
 * contributions from numerous individuals and organizations.
 * Please see the COPYING and CONTRIBUTORS files for details.
 */
 
#ifndef _SQUID_SRC_HTTP_ONE_REQUESTPARSER_H
#define _SQUID_SRC_HTTP_ONE_REQUESTPARSER_H
 
#include "http/one/Parser.h"
#include "http/RequestMethod.h"
 
namespace Parser {
class Tokenizer;
}
 
namespace Http {
namespace One {
 
class RequestParser : public Http1::Parser
{
public:
    RequestParser() = default;
    RequestParser(bool preserveParsed) { preserveParsed_ = preserveParsed; }
    RequestParser(const RequestParser &) = default;
    RequestParser &operator =(const RequestParser &) = default;
    RequestParser(RequestParser &&) = default;
    RequestParser &operator =(RequestParser &&) = default;
    virtual ~RequestParser() {}
 
    /* Http::One::Parser API */
    virtual void clear() {*this = RequestParser();}
    virtual Http1::Parser::size_type firstLineSize() const;
    virtual bool parse(const SBuf &aBuf);
 
    const HttpRequestMethod & method() const {return method_;}
 
    const SBuf &requestUri() const {return uri_;}
 
    const SBuf &parsed() const { Must(preserveParsed_); return parsed_; }
 
private:
    void skipGarbageLines();
    int parseRequestFirstLine();
    bool doParse(const SBuf &aBuf);
 
    /* all these return false and set parseStatusCode on parsing failures */
    bool parseMethodField(Tokenizer &);
    bool parseUriField(Tokenizer &);
    bool parseHttpVersionField(Tokenizer &);
    bool skipDelimiter(const size_t count, const char *where);
    bool skipTrailingCrs(Tokenizer &tok);
 
    bool http0() const {return !msgProtocol_.major;}
    static const CharacterSet &RequestTargetCharacters();
 
    HttpRequestMethod method_;
 
    SBuf uri_;
 
    SBuf parsed_;
    bool preserveParsed_ = false; 
};
 
} // namespace One
} // namespace Http
 
#endif /*  _SQUID_SRC_HTTP_ONE_REQUESTPARSER_H */