libhttpserver/src/httpserver/http_response_builder.hpp at master · a-pavlov/libhttpserver · GitHub

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This file is part of libhttpserver

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public

License along with this library; if not, write to the Free Software

Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301

USA

#if !defined (_HTTPSERVER_HPP_INSIDE_) && !defined (HTTPSERVER_COMPILATION)

#error "Only <httpserver.hpp> or <httpserverpp> can be included directly."

#endif

#ifndef _HTTP_RESPONSE_BUILDER_HPP_

#define _HTTP_RESPONSE_BUILDER_HPP_

#include <map>

#include <string>

#include "httpserver/http_response.hpp"

struct MHD_Connection;

namespace httpserver

{

class webserver;

namespace http

{

class header_comparator;

};

namespace details

{

struct cache_entry;

};

using namespace http;

struct byte_string

{

public:

byte_string(const char* content_hook, size_t content_length):

content_hook(content_hook),

content_length(content_length)

{

}

const char* get_content_hook() const

{

return content_hook;

}

size_t get_content_length() const

{

return content_length;

}

private:

const char* content_hook;

size_t content_length;

};

class http_response_builder

{

public:

explicit http_response_builder(

const std::string& content_hook,

int response_code = 200,

const std::string& content_type = "text/plain",

bool autodelete = true

_content_hook(content_hook),

_response_code(response_code),

_autodelete(autodelete),

_realm(""),

_opaque(""),

_reload_nonce(false),

_headers(std::map<std::string, std::string, header_comparator>()),

_footers(std::map<std::string, std::string, header_comparator>()),

_cookies(std::map<std::string, std::string, header_comparator>()),

_topics(std::vector<std::string>()),

_keepalive_secs(-1),

_keepalive_msg(""),

_send_topic(""),

_ce(0x0),

_get_raw_response(&http_response::get_raw_response_str),

_decorate_response(&http_response::decorate_response_str),

_enqueue_response(&http_response::enqueue_response_str)

{

_headers[http_utils::http_header_content_type] = content_type;

}

http_response_builder(

const byte_string& content_hook,

int response_code = 200,

const std::string& content_type = "text/plain",

bool autodelete = true

_content_hook(std::string(content_hook.get_content_hook(), content_hook.get_content_length())),

_response_code(response_code),

_autodelete(autodelete),

_realm(""),

_opaque(""),

_reload_nonce(false),

_headers(std::map<std::string, std::string, header_comparator>()),

_footers(std::map<std::string, std::string, header_comparator>()),

_cookies(std::map<std::string, std::string, header_comparator>()),

_topics(std::vector<std::string>()),

_keepalive_secs(-1),

_keepalive_msg(""),

_send_topic(""),

_ce(0x0),

_get_raw_response(&http_response::get_raw_response_str),

_decorate_response(&http_response::decorate_response_str),

_enqueue_response(&http_response::enqueue_response_str)

{

_headers[http_utils::http_header_content_type] = content_type;

}

http_response_builder(const http_response_builder& b):

_content_hook(b._content_hook),

_response_code(b._response_code),

_autodelete(b._autodelete),

_realm(b._realm),

_opaque(b._opaque),

_reload_nonce(b._reload_nonce),

_headers(b._headers),

_footers(b._footers),

_cookies(b._cookies),

_topics(b._topics),

_keepalive_secs(b._keepalive_secs),

_keepalive_msg(b._keepalive_msg),

_send_topic(b._send_topic),

_ce(b._ce),

_get_raw_response(b._get_raw_response),

_decorate_response(b._decorate_response),

_enqueue_response(b._enqueue_response)

{

}

http_response_builder& operator=(const http_response_builder& b)

{

_content_hook = b._content_hook;

_response_code = b._response_code;

_autodelete = b._autodelete;

_realm = b._realm;

_opaque = b._opaque;

_reload_nonce = b._reload_nonce;

_headers = b._headers;

_footers = b._footers;

_cookies = b._cookies;

_topics = b._topics;

_keepalive_secs = b._keepalive_secs;

_keepalive_msg = b._keepalive_msg;

_send_topic = b._send_topic;

_ce = b._ce;

_get_raw_response = b._get_raw_response;

_decorate_response = b._decorate_response;

_enqueue_response = b._enqueue_response;

return *this;

}

~http_response_builder()

{

}

http_response_builder& string_response()

{

return *this;

}

http_response_builder& file_response()

{

_get_raw_response = &http_response::get_raw_response_file;

return *this;

}

http_response_builder& basic_auth_fail_response(const std::string& realm = "")

{

_realm = realm;

_enqueue_response = &http_response::enqueue_response_basic;

return *this;

}

http_response_builder& digest_auth_fail_response(

const std::string& realm = "",

const std::string& opaque = "",

bool reload_nonce = false

)

{

_realm = realm;

_opaque = opaque;

_reload_nonce = reload_nonce;

_enqueue_response = &http_response::enqueue_response_digest;

return *this;

}

http_response_builder& long_polling_receive_response(

const std::vector<std::string>& topics,

int keepalive_secs = -1,

std::string keepalive_msg = ""

)

{

_topics = topics;

_keepalive_secs = keepalive_secs;

_keepalive_msg = keepalive_msg;

_get_raw_response = &http_response::get_raw_response_lp_receive;

return *this;

}

http_response_builder& long_polling_send_response(const std::string& send_topic)

{

_send_topic = send_topic;

_get_raw_response = &http_response::get_raw_response_lp_send;

return *this;

}

http_response_builder& cache_response()

{

_get_raw_response = &http_response::get_raw_response_cache;

_decorate_response = &http_response::decorate_response_cache;

return *this;

}

http_response_builder& deferred_response(cycle_callback_ptr cycle_callback)

{

_cycle_callback = cycle_callback;

_get_raw_response = &http_response::get_raw_response_deferred;

_decorate_response = &http_response::decorate_response_deferred;

return *this;

}

http_response_builder& shoutCAST_response()

{

_response_code |= http_utils::shoutcast_response;

return *this;

}

http_response_builder& with_header(const std::string& key, const std::string& value)

{

_headers[key] = value; return *this;

}

http_response_builder& with_footer(const std::string& key, const std::string& value)

{

_footers[key] = value; return *this;

}

http_response_builder& with_cookie(const std::string& key, const std::string& value)

{

_cookies[key] = value; return *this;

}

private:

std::string _content_hook;

int _response_code;

bool _autodelete;

std::string _realm;

std::string _opaque;

bool _reload_nonce;

std::map<std::string, std::string, header_comparator> _headers;

std::map<std::string, std::string, header_comparator> _footers;

std::map<std::string, std::string, header_comparator> _cookies;

std::vector<std::string> _topics;

int _keepalive_secs;

std::string _keepalive_msg;

std::string _send_topic;

cycle_callback_ptr _cycle_callback;

details::cache_entry* _ce;

void (http_response::*_get_raw_response)(MHD_Response**, webserver*);

void (http_response::*_decorate_response)(MHD_Response*);

int (http_response::*_enqueue_response)(MHD_Connection*, MHD_Response*);

http_response_builder& cache_response(details::cache_entry* ce)

{

_ce = ce;

_get_raw_response = &http_response::get_raw_response_cache;

_decorate_response = &http_response::decorate_response_cache;

return *this;

}

friend class http_response;

};

#endif //_HTTP_RESPONSE_BUILDER_HPP_

libhttpserver/src/httpserver/http_response_builder.hpp at master · a-pavlov/libhttpserver · GitHub

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