libbobcat-dev 2.20.01-1 / usr / include / bobcat / cgi

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#ifndef INCLUDED_BOBCAT_CGI_
#define INCLUDED_BOBCAT_CGI_

#include <iostream>
#include <fstream>
#include <string>
#include <cstdlib>
#include <vector>
#include <unordered_map>

#include <bobcat/pattern>

namespace FBB
{

class CGI
{
    friend std::ostream &operator<<(std::ostream &out, CGI const &cgi);

    public:
        typedef std::unordered_map<std::string, std::vector<std::string> >
                MapStringVector;

        enum Method
        {
            UNDETERMINED,
            GET,
            POST
        };
        enum Create
        {
            DONT_CREATE_PATH,
            CREATE_PATH
        };

    private:
        enum Boundary           // see multipartFormData()
        {
            NO_BOUNDARY,
            BOUNDARY,
            END_BOUNDARY
        };

        Method d_method;

        bool d_escapeValue;
        bool d_escape[256];     // initially all d_defaultEscape
    
        MapStringVector d_param;
        std::string d_query;
        std::string d_boundary; // boundary of the multipart/form-data forms
                                // empty if POST produces GET-like info on 
                                // stdin.

        unsigned long long d_contentLength;

        std::string d_filePath;     // uploaded files are named 
        std::string d_filePrefix;   // d_filePath / d_filePrefix d_fileNr++
        size_t d_fileNr;

        Pattern d_contentDisposition;
        Pattern d_contentFile;

        std::string d_status;
        bool d_activated;
        unsigned long long d_maxUploadSize;

        static std::vector<std::string> s_empty;

        enum: size_t 
        {
            s_uploadBlock = 8000,                   // upload.cc
            s_nTries = 100
        };

    public:
        explicit CGI(bool defaultEscape = true,
            char const *header = "Content-type: text/html", 
            std::ostream &out = std::cout);

        CGI(CGI &&tmp);

        CGI &operator=(CGI const &rhs) = default;
        CGI &operator=(CGI &&tmp);

        CGI &operator<<(std::string const &set);
        CGI &operator<<(std::pair<char, char> range);
        CGI &operator<<(int ch);

        void setFileDestination(std::string const &path, 
                                std::string const &prefix = "",
                                Create create = CREATE_PATH);
        void setMaxUploadSize(size_t maxUploadSize, int unit = 'M');

        void report() const;                // also called by param()

    // accessors:
        char const *operator[](std::string const &key) const;

        unsigned long long maxUploadSize() const;

        Method method() const;
        std::string const &query() const;   // empty with multipart/form-data

        std::vector<std::string> const &param(std::string const &variable);
        MapStringVector::const_iterator begin();
        MapStringVector::const_iterator end();

    // static members:
                                    // unpercent also does the '+' to ' '
                                    // conversion 
        static std::string unPercent(std::string const &text);
        static std::string dos2unix(std::string const &text);
        
        CGI(CGI const &&tmp);                       // Deprecated
        CGI &operator=(CGI const &&tmp);            // Deprecated

    private:
        void setQuery();

        void get();
        void post();
        void addParam(std::string const &param);
        void init(bool &target);
        std::string escape(std::string const &text);
        void next(std::string *line);
        void multipartFormData();

        Boundary typeOf(std::string const &line) const;

        bool isFile(std::string const &line);
        void readPart(std::string *line);
        void setMethod();
        void setParam();
        void upload(std::string *line);
};

inline char const *CGI::operator[](std::string const &key) const
{
    return getenv(key.c_str());
}

inline std::string const &CGI::query() const
{
    return d_query;
}

inline CGI::Method CGI::method() const
{
    return d_method;
}

inline CGI::MapStringVector::const_iterator CGI::begin()
{
    setParam();
    return d_param.begin();
}

inline CGI::MapStringVector::const_iterator CGI::end()
{
    setParam();
    return d_param.end();
}

inline unsigned long long CGI::maxUploadSize() const
{
    return d_maxUploadSize;
}

}   // namespace


#endif

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