1233 lines
25 KiB
C++
1233 lines
25 KiB
C++
/*
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* This file is a part of Winix
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* and is distributed under the 2-Clause BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2010-2023, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "http.h"
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#include "core/lock.h"
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#include "core/log.h"
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#include "utf8/utf8.h"
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#include "core/header.h"
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namespace Winix
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{
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Http::Http()
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{
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curl = nullptr;
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begin();
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}
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/*
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* prepare to start a new request
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*/
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Http & Http::begin()
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{
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uninitialize_curl();
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synchro = nullptr;
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browser_name = "Winix";
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conn_timeout = 30;
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http_headers = nullptr;
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read_function_input = nullptr;
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read_function_index = 0;
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additional_space_headers_to_send = nullptr;
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additional_string_headers_to_send = nullptr;
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additional_wstring_headers_to_send = nullptr;
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bearer_token = nullptr;
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output_headers_space = nullptr;
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change_header_names_to_lower = true;
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output_content_type = nullptr;
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debug_mode = 0;
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debug_info = nullptr;
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follow_location = true;
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verify_ssl_cert = true;
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forse_ssl_version = false;
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ssl_version = 0;
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ca_path = nullptr;
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ca_path_utf8.clear();
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client_cert = nullptr;
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client_key = nullptr;
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client_cert_utf8.clear();
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client_key_utf8.clear();
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smtp_recipients = nullptr;
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smtp_from = nullptr;
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username = nullptr;
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password = nullptr;
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force_smtp_ssl_mode = false;
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smtp_ssl_mode = 0;
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return *this;
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}
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Http::~Http()
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{
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/*
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* IMPROVEME
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* free http_headers and smtp_recipients if exists
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*/
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uninitialize_curl();
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}
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Http & Http::add_header(const pt::TextStream & header)
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{
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header.to_str(temp_header_ascii);
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add_header(temp_header_ascii);
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return *this;
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}
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Http & Http::add_header(const pt::WTextStream & header)
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{
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header.to_str(temp_header_ascii);
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add_header(temp_header_ascii);
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return *this;
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}
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Http & Http::add_header(const std::string & header)
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{
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if( !header.empty() )
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{
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http_headers = curl_slist_append(http_headers, header.c_str());
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}
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return *this;
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}
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Http & Http::add_header(const std::wstring & header)
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{
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if( !header.empty() )
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{
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pt::wide_to_utf8(header, temp_header_ascii);
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http_headers = curl_slist_append(http_headers, temp_header_ascii.c_str());
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}
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return *this;
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}
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Http & Http::add_header(const char * str, size_t len)
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{
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if( len > 0 )
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{
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temp_header_ascii.assign(str, len);
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http_headers = curl_slist_append(http_headers, temp_header_ascii.c_str());
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}
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return *this;
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}
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Http & Http::add_header(const wchar_t * str, size_t len)
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{
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if( len > 0 )
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{
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pt::wide_to_utf8(str, len, temp_header_ascii);
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http_headers = curl_slist_append(http_headers, temp_header_ascii.c_str());
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}
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return *this;
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}
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Http & Http::add_recipient(const char * recipient)
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{
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smtp_recipients = curl_slist_append(smtp_recipients, recipient);
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return *this;
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}
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Http & Http::add_recipient(const std::string & recipient)
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{
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return add_recipient(recipient.c_str());
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}
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Http & Http::add_recipient(const wchar_t * recipient)
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{
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pt::wide_to_utf8(recipient, temp_header_ascii);
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smtp_recipients = curl_slist_append(smtp_recipients, temp_header_ascii.c_str());
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return *this;
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}
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Http & Http::add_recipient(const std::wstring & recipient)
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{
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return add_recipient(recipient.c_str());
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}
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Http & Http::set_smtp_ssl_mode(long mode)
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{
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force_smtp_ssl_mode = true;
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smtp_ssl_mode = mode;
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return *this;
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}
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Http & Http::add_headers(pt::Space * headers)
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{
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additional_space_headers_to_send = headers;
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return *this;
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}
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Http & Http::add_headers(pt::Space & headers)
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{
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additional_space_headers_to_send = &headers;
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return *this;
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}
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Http & Http::add_headers(const char * headers)
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{
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additional_string_headers_to_send = headers;
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return *this;
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}
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Http & Http::add_headers(const wchar_t * headers)
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{
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additional_wstring_headers_to_send = headers;
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return *this;
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}
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Http & Http::add_headers(const std::string & headers)
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{
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additional_string_headers_to_send = headers.c_str();
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return *this;
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}
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Http & Http::add_headers(const std::wstring & headers)
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{
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additional_wstring_headers_to_send = headers.c_str();
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return *this;
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}
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Http & Http::get_output_headers_to(pt::Space * out_headers, bool change_names_to_lower)
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{
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this->output_headers_space = out_headers;
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this->change_header_names_to_lower = change_names_to_lower;
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return *this;
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}
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Http & Http::get_output_content_type_to(std::wstring * out_content_type)
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{
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this->output_content_type = out_content_type;
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return *this;
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}
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Http & Http::add_bearer_token(const wchar_t * token)
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{
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this->bearer_token = token;
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return *this;
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}
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Http & Http::add_bearer_token(const std::wstring & token)
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{
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this->bearer_token = token.c_str();
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return *this;
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}
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bool Http::fetch(Method method, const wchar_t * url, const std::string * in, pt::WTextStream & out, bool clear_stream)
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{
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std::string url_ascii;
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pt::TextStream out_stream;
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if( clear_stream )
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{
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out.clear();
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}
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pt::wide_to_utf8(url, url_ascii);
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bool status = fetch_internal(method, url_ascii.c_str(), in, out_stream);
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out << out_stream;
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return status;
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}
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bool Http::fetch(Method method, const std::wstring & url, const std::string * in, pt::WTextStream & out, bool clear_stream)
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{
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return fetch(method, url.c_str(), in, out, clear_stream);
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}
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bool Http::fetch(Method method, const wchar_t * url, pt::WTextStream * in, pt::WTextStream & out, bool clear_stream)
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{
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if( in )
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{
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std::string in_ascii;
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in->to_str(in_ascii);
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return fetch(method, url, &in_ascii, out, clear_stream);
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}
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else
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{
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const std::string * in = nullptr;
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return fetch(method, url, in, out, clear_stream);
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}
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}
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bool Http::get(const wchar_t * url, std::wstring & out, bool clear_str)
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{
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const std::string * in = nullptr;
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pt::WTextStream out_stream;
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bool status = fetch(Method::method_get, url, in, out_stream, false);
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out_stream.to_str(out, clear_str);
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return status;
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}
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bool Http::get(const std::wstring & url, std::wstring & out, bool clear_str)
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{
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return get(url.c_str(), out, clear_str);
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}
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bool Http::get(const pt::WTextStream & url, std::wstring & out, bool clear_str)
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{
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std::wstring url_str;
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url.to_str(url_str);
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return get(url_str, out, clear_str);
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}
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bool Http::get(const wchar_t * url, pt::WTextStream & out, bool clear_stream)
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{
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const std::string * in = nullptr;
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return fetch(Method::method_get, url, in, out, clear_stream);
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}
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bool Http::get(const std::wstring & url, pt::WTextStream & out, bool clear_stream)
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{
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return get(url.c_str(), out, clear_stream);
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}
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bool Http::get(const pt::WTextStream & url, pt::WTextStream & out, bool clear_stream)
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{
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std::wstring url_str;
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url.to_str(url_str);
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return get(url_str, out, clear_stream);
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}
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bool Http::post(const wchar_t * url, const std::string & in, pt::WTextStream & out, bool clear_stream)
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{
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return fetch(Method::method_post, url, &in, out, clear_stream);
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}
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bool Http::post(const std::wstring & url, const std::string & in, pt::WTextStream & out, bool clear_stream)
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{
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return fetch(Method::method_post, url, &in, out, clear_stream);
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}
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bool Http::post(const wchar_t * url, pt::WTextStream & in, pt::WTextStream & out, bool clear_stream)
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{
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return fetch(Method::method_post, url, &in, out, clear_stream);
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}
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bool Http::put(const wchar_t * url, const std::string & in, pt::WTextStream & out, bool clear_stream)
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{
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return fetch(Method::method_put, url, &in, out, clear_stream);
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}
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bool Http::put(const std::wstring & url, const std::string & in, pt::WTextStream & out, bool clear_stream)
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{
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return fetch(Method::method_put, url, &in, out, clear_stream);
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}
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bool Http::put(const wchar_t * url, pt::WTextStream & in, pt::WTextStream & out, bool clear_stream)
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{
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return fetch(Method::method_put, url, &in, out, clear_stream);
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}
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bool Http::send_mail(const wchar_t * smtp_url, const wchar_t * from, const std::string & in, pt::WTextStream & out, bool clear_stream)
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{
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std::string url_ascii;
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pt::TextStream out_stream;
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if( clear_stream )
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{
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out.clear();
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}
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pt::wide_to_utf8(smtp_url, url_ascii);
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smtp_from = from;
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bool status = fetch_internal(Method::method_smtp, url_ascii.c_str(), &in, out_stream);
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out << out_stream;
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return status;
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}
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bool Http::send_mail(const wchar_t * smtp_url, const wchar_t * from, pt::WTextStream & in, pt::WTextStream & out, bool clear_stream)
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{
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std::string in_ascii;
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in.to_str(in_ascii);
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return send_mail(smtp_url, from, in_ascii, out, clear_stream);
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}
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Http & Http::set_username(const wchar_t * username)
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{
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this->username = username;
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return *this;
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}
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Http & Http::set_password(const wchar_t * password)
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{
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this->password = password;
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return *this;
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}
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Http & Http::set_username(const std::wstring & username)
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{
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return set_username(username.c_str());
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}
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Http & Http::set_password(const std::wstring & password)
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{
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return set_password(password.c_str());
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}
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long Http::get_status()
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{
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long status = -1;
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if( curl )
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{
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curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &status);
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}
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return status;
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}
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void Http::clear_tmp_objects()
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{
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out_headers_stream.clear();
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temp_header.clear();
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temp_header_ascii.clear();
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temp_header_value.clear();
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temp_header_value_ascii.clear();
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}
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void Http::reset_headers()
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{
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if( http_headers )
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{
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curl_slist_free_all(http_headers);
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http_headers = nullptr;
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}
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if( smtp_recipients )
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{
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curl_slist_free_all(smtp_recipients);
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smtp_recipients = nullptr;
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}
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}
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void Http::add_additional_space_headers()
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{
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if( additional_space_headers_to_send && additional_space_headers_to_send->is_object() )
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{
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pt::WTextStream header;
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pt::Space::ObjectType::iterator i = additional_space_headers_to_send->value.value_object.begin();
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while( i != additional_space_headers_to_send->value.value_object.end() )
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{
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header.clear();
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header << i->first << ": ";
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pt::Space * value = i->second;
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if( value->is_wstr() )
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{
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header << value->value.value_wstring;
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}
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else
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if( value->is_str() )
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{
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header << value->value.value_string;
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}
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else
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{
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header << i->second->to_wstr();
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}
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add_header(header);
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++i;
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}
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}
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}
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void Http::add_additional_string_headers()
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{
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if( additional_string_headers_to_send )
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{
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add_additional_string_headers(additional_string_headers_to_send);
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}
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if( additional_wstring_headers_to_send )
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{
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add_additional_string_headers(additional_wstring_headers_to_send);
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}
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}
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void Http::add_bearer_token()
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{
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if( bearer_token && bearer_token[0] != 0 )
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{
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pt::WTextStream header;
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header << L"Authorization: Bearer " << bearer_token;
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add_header(header);
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}
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}
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void Http::allow_redirects(bool allow_redirects)
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{
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this->follow_location = allow_redirects;
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}
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void Http::set_ssl_version(long ssl_version)
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{
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this->forse_ssl_version = true;
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this->ssl_version = ssl_version;
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}
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void Http::verify_ssl(bool verify)
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{
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this->verify_ssl_cert = verify;
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}
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void Http::set_ca_file(const wchar_t * path)
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{
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ca_path = path;
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}
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void Http::set_ca_file(const std::wstring & path)
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{
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ca_path = path.c_str();
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}
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void Http::set_client_cert(const wchar_t * client_cert, const wchar_t * client_key)
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{
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this->client_cert = client_cert;
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this->client_key = client_key;
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}
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|
|
void Http::set_client_cert(const std::wstring & client_cert, const std::wstring & client_key)
|
|
{
|
|
this->client_cert = client_cert.c_str();
|
|
this->client_key = client_key.c_str();
|
|
}
|
|
|
|
|
|
|
|
|
|
void Http::initialize_curl_if_needed()
|
|
{
|
|
if( !curl )
|
|
{
|
|
/*
|
|
* curl_easy_init() is not thread safe before curl 7.84.0 version
|
|
*
|
|
* from https://curl.se/libcurl/c/curl_easy_init.html
|
|
* If you did not already call curl_global_init, curl_easy_init does it automatically.
|
|
* This may be lethal in multi-threaded cases, since curl_global_init is not thread-safe,
|
|
* and it may result in resource problems because there is no corresponding cleanup.
|
|
*
|
|
* but we have called curl_global_init() in main.cpp (InitCurlLibrary() method)
|
|
*
|
|
*/
|
|
curl = curl_easy_init();
|
|
}
|
|
}
|
|
|
|
|
|
void Http::uninitialize_curl()
|
|
{
|
|
if( curl )
|
|
{
|
|
curl_easy_cleanup(curl);
|
|
curl = nullptr;
|
|
}
|
|
}
|
|
|
|
|
|
void Http::use_debug_mode(bool debug, pt::Space * debug_info)
|
|
{
|
|
this->debug_mode = debug ? 1 : 0;
|
|
this->debug_info = debug_info;
|
|
}
|
|
|
|
|
|
// in can be pointer to const char *
|
|
bool Http::fetch_internal(Method method, const char * url, const std::string * in, pt::TextStream & out)
|
|
{
|
|
bool status = false;
|
|
initialize_curl_if_needed();
|
|
|
|
if( output_headers_space )
|
|
output_headers_space->clear();
|
|
|
|
if( output_content_type )
|
|
output_content_type->clear();
|
|
|
|
if( !curl )
|
|
{
|
|
log << log1 << "Http: I can't initialize curl easy session" << logend;
|
|
return status;
|
|
}
|
|
|
|
error_buf[0] = 0;
|
|
|
|
read_function_input = in; // can be null
|
|
read_function_index = 0;
|
|
|
|
put_method(method, in);
|
|
|
|
if( read_function_input )
|
|
{
|
|
curl_easy_setopt(curl, CURLOPT_READFUNCTION, fetch_read_function);
|
|
curl_easy_setopt(curl, CURLOPT_READDATA, this);
|
|
curl_easy_setopt(curl, CURLOPT_SEEKFUNCTION, fetch_seek_function);
|
|
curl_easy_setopt(curl, CURLOPT_SEEKDATA, this);
|
|
curl_off_t size = read_function_input->size();
|
|
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE_LARGE, size);
|
|
}
|
|
|
|
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fetch_write_function);
|
|
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &out);
|
|
curl_easy_setopt(curl, CURLOPT_URL, url);
|
|
curl_easy_setopt(curl, CURLOPT_USERAGENT, browser_name.c_str());
|
|
curl_easy_setopt(curl, CURLOPT_TIMEOUT, conn_timeout);
|
|
curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, conn_timeout);
|
|
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, error_buf);
|
|
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, (follow_location) ? 1 : 0);
|
|
curl_easy_setopt(curl, CURLOPT_MAXREDIRS, 20);
|
|
curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);
|
|
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, (verify_ssl_cert) ? 1 : 0);
|
|
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, (verify_ssl_cert) ? 2 : 0); // set to 2: https://curl.se/libcurl/c/CURLOPT_SSL_VERIFYHOST.html
|
|
|
|
if( debug_mode == 1 )
|
|
{
|
|
curl_easy_setopt(curl, CURLOPT_VERBOSE, debug_mode);
|
|
curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, debug_function);
|
|
curl_easy_setopt(curl, CURLOPT_DEBUGDATA, this);
|
|
}
|
|
|
|
if( output_headers_space || output_content_type )
|
|
{
|
|
out_headers_stream.clear();
|
|
curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, fetch_header_function);
|
|
curl_easy_setopt(curl, CURLOPT_HEADERDATA, &out_headers_stream);
|
|
}
|
|
|
|
if( forse_ssl_version )
|
|
{
|
|
curl_easy_setopt(curl, CURLOPT_SSLVERSION, ssl_version);
|
|
}
|
|
|
|
if( ca_path )
|
|
{
|
|
pt::wide_to_utf8(ca_path, ca_path_utf8);
|
|
curl_easy_setopt(curl, CURLOPT_CAINFO, ca_path_utf8.c_str());
|
|
}
|
|
|
|
if( client_cert )
|
|
{
|
|
pt::wide_to_utf8(client_cert, client_cert_utf8);
|
|
curl_easy_setopt(curl, CURLOPT_SSLCERT, client_cert_utf8.c_str());
|
|
}
|
|
|
|
if( client_key )
|
|
{
|
|
pt::wide_to_utf8(client_key, client_key_utf8);
|
|
curl_easy_setopt(curl, CURLOPT_SSLKEY, client_key_utf8.c_str());
|
|
}
|
|
|
|
if( username )
|
|
{
|
|
pt::wide_to_utf8(username, temp_header_ascii);
|
|
curl_easy_setopt(curl, CURLOPT_USERNAME, temp_header_ascii.c_str());
|
|
}
|
|
|
|
if( password )
|
|
{
|
|
pt::wide_to_utf8(password, temp_header_ascii);
|
|
curl_easy_setopt(curl, CURLOPT_PASSWORD, temp_header_ascii.c_str());
|
|
}
|
|
|
|
// block the Expect: 100-continue header
|
|
// https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Expect
|
|
// https://httpwg.org/specs/rfc7231.html#header.expect
|
|
// https://curl.se/libcurl/c/post-callback.html
|
|
/*
|
|
Using POST with HTTP 1.1 implies the use of a "Expect: 100-continue"
|
|
header. You can disable this header with CURLOPT_HTTPHEADER as usual.
|
|
NOTE: if you want chunked transfer too, you need to combine these two
|
|
since you can only set one list of headers with CURLOPT_HTTPHEADER.
|
|
*/
|
|
//add_header(L"Expect:");
|
|
|
|
add_additional_space_headers();
|
|
add_additional_string_headers();
|
|
add_bearer_token();
|
|
|
|
if( http_headers )
|
|
{
|
|
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_headers);
|
|
}
|
|
|
|
CURLcode res = curl_easy_perform(curl);
|
|
reset_headers();
|
|
|
|
if( res == CURLE_OK )
|
|
{
|
|
status = true;
|
|
parse_headers();
|
|
}
|
|
else
|
|
{
|
|
log << log1 << "Http: fetching failed: " << error_buf << ", code: "
|
|
<< static_cast<int>(res) << logend;
|
|
}
|
|
|
|
clear_tmp_objects();
|
|
return status;
|
|
}
|
|
|
|
|
|
// we don't put 'get' here
|
|
void Http::put_method(Method & method, const std::string * in)
|
|
{
|
|
if( method == Method::method_put || method == Method::method_patch ||
|
|
method == Method::method_delete || method == Method::method_options )
|
|
{
|
|
if( in )
|
|
{
|
|
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
|
|
curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE, in->size());
|
|
}
|
|
}
|
|
|
|
switch(method)
|
|
{
|
|
case Method::method_post:
|
|
curl_easy_setopt(curl, CURLOPT_POST, 1L);
|
|
|
|
if( in )
|
|
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE_LARGE, in->size());
|
|
|
|
break;
|
|
|
|
case Method::method_patch:
|
|
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PATCH");
|
|
break;
|
|
|
|
case Method::method_delete:
|
|
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE");
|
|
break;
|
|
|
|
case Method::method_options:
|
|
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "OPTIONS");
|
|
break;
|
|
|
|
case Method::method_smtp:
|
|
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
|
|
|
|
if( smtp_from )
|
|
{
|
|
pt::wide_to_utf8(smtp_from, temp_header_ascii);
|
|
curl_easy_setopt(curl, CURLOPT_MAIL_FROM, temp_header_ascii.c_str());
|
|
}
|
|
|
|
if( smtp_recipients )
|
|
{
|
|
curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, smtp_recipients);
|
|
}
|
|
|
|
if( force_smtp_ssl_mode )
|
|
{
|
|
curl_easy_setopt(curl, CURLOPT_USE_SSL, smtp_ssl_mode);
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
size_t Http::fetch_read_function(char * ptr, size_t size, size_t nmemb, void * userdata)
|
|
{
|
|
size_t len = 0;
|
|
|
|
if( userdata )
|
|
{
|
|
Http * http = reinterpret_cast<Http*>(userdata);
|
|
|
|
if( http->read_function_index < http->read_function_input->size() )
|
|
{
|
|
len = size * nmemb;
|
|
|
|
if( http->read_function_index + len > http->read_function_input->size() )
|
|
{
|
|
len = http->read_function_input->size() - http->read_function_index;
|
|
}
|
|
|
|
for(size_t i=0 ; i < len ; ++i)
|
|
{
|
|
ptr[i] = (*http->read_function_input)[http->read_function_index + i];
|
|
}
|
|
|
|
http->read_function_index += len;
|
|
}
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
|
|
int Http::fetch_seek_set(Http * http, curl_off_t offset)
|
|
{
|
|
int status = CURL_SEEKFUNC_CANTSEEK;
|
|
size_t offset_size = static_cast<size_t>(offset);
|
|
|
|
if( offset_size >=0 && offset_size < http->read_function_input->size() )
|
|
{
|
|
http->read_function_index = offset_size;
|
|
status = CURL_SEEKFUNC_OK;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
|
|
int Http::fetch_seek_cur(Http * http, curl_off_t offset)
|
|
{
|
|
int status = CURL_SEEKFUNC_CANTSEEK;
|
|
|
|
if( offset >= 0 )
|
|
{
|
|
size_t offset_size = static_cast<size_t>(offset);
|
|
|
|
if( http->read_function_index + offset_size < http->read_function_input->size() )
|
|
{
|
|
http->read_function_index += offset_size;
|
|
status = CURL_SEEKFUNC_OK;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
size_t offset_size = static_cast<size_t>(-offset);
|
|
|
|
if( http->read_function_index >= offset_size )
|
|
{
|
|
http->read_function_index -= offset_size;
|
|
status = CURL_SEEKFUNC_OK;
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
|
|
int Http::fetch_seek_end(Http * http, curl_off_t offset)
|
|
{
|
|
int status = CURL_SEEKFUNC_CANTSEEK;
|
|
|
|
if( offset < 0 )
|
|
{
|
|
size_t offset_size = static_cast<size_t>(-offset);
|
|
|
|
if( offset_size <= http->read_function_input->size() )
|
|
{
|
|
http->read_function_index = http->read_function_input->size() - offset_size;
|
|
status = CURL_SEEKFUNC_OK;
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
*
|
|
* https://curl.se/libcurl/c/CURLOPT_SEEKFUNCTION.html
|
|
*
|
|
* These are the return codes for the seek callbacks
|
|
*
|
|
* #define CURL_SEEKFUNC_OK 0
|
|
* #define CURL_SEEKFUNC_FAIL 1 // fail the entire transfer
|
|
* #define CURL_SEEKFUNC_CANTSEEK 2 / /tell libcurl seeking cannot be done, so
|
|
* libcurl might try other means instead
|
|
*
|
|
*/
|
|
int Http::fetch_seek_function(void * userdata, curl_off_t offset, int origin)
|
|
{
|
|
Http * http = reinterpret_cast<Http*>(userdata);
|
|
int status = CURL_SEEKFUNC_FAIL;
|
|
|
|
if( origin == SEEK_SET )
|
|
{
|
|
status = fetch_seek_set(http, offset);
|
|
}
|
|
else
|
|
if( origin == SEEK_CUR )
|
|
{
|
|
status = fetch_seek_cur(http, offset);
|
|
}
|
|
else
|
|
if( origin == SEEK_END )
|
|
{
|
|
status = fetch_seek_end(http, offset);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
size_t Http::fetch_write_function(char * ptr, size_t size, size_t nmemb, void * userdata)
|
|
{
|
|
size_t len = size * nmemb;
|
|
|
|
if( userdata )
|
|
{
|
|
pt::TextStream * out = reinterpret_cast<pt::TextStream*>(userdata);
|
|
|
|
if( len > 0 )
|
|
out->write(ptr, len);
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
|
|
size_t Http::fetch_header_function(char * ptr, size_t size, size_t nmemb, void * userdata)
|
|
{
|
|
size_t len = size * nmemb;
|
|
|
|
if( userdata )
|
|
{
|
|
pt::TextStream * out = reinterpret_cast<pt::TextStream*>(userdata);
|
|
|
|
if( len > 0 )
|
|
out->write(ptr, len);
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
|
|
|
|
void Http::skip_white(pt::TextStream::iterator & i)
|
|
{
|
|
for( ; i != out_headers_stream.end() ; ++i )
|
|
{
|
|
if( !pt::is_white(*i, false, false) )
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void Http::parse_header_name(pt::TextStream::iterator & i, std::string & name)
|
|
{
|
|
name.clear();
|
|
|
|
for( ; i != out_headers_stream.end() ; ++i )
|
|
{
|
|
char c = *i;
|
|
|
|
if( c == '\r' )
|
|
{
|
|
// just skip
|
|
}
|
|
else
|
|
if( c == '\n' )
|
|
{
|
|
break;
|
|
}
|
|
else
|
|
if( c == ':' )
|
|
{
|
|
++i;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
if( change_header_names_to_lower )
|
|
{
|
|
c = pt::to_lower(c);
|
|
}
|
|
|
|
name += c;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void Http::parse_header_value(pt::TextStream::iterator & i, std::string & value)
|
|
{
|
|
value.clear();
|
|
|
|
for( ; i != out_headers_stream.end() ; ++i )
|
|
{
|
|
char c = *i;
|
|
|
|
if( c == '\r' )
|
|
{
|
|
// just skip
|
|
}
|
|
else
|
|
if( c == '\n' )
|
|
{
|
|
++i;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
value += c;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void Http::parse_headers()
|
|
{
|
|
if( output_headers_space || output_content_type )
|
|
{
|
|
pt::TextStream::iterator i = out_headers_stream.begin();
|
|
|
|
while( i != out_headers_stream.end() )
|
|
{
|
|
parse_header_name(i, temp_header_ascii);
|
|
skip_white(i);
|
|
parse_header_value(i, temp_header_value_ascii);
|
|
|
|
pt::utf8_to_wide(temp_header_ascii, temp_header);
|
|
pt::utf8_to_wide(temp_header_value_ascii, temp_header_value);
|
|
|
|
// both temp_header and temp_header_value will be empty
|
|
// after the first header 'HTTP/1.1 100 Continue' (if exists)
|
|
// (there is an empty line in such a case)
|
|
if( !temp_header.empty() || !temp_header_value.empty() )
|
|
{
|
|
if( output_headers_space )
|
|
output_headers_space->add(temp_header, temp_header_value);
|
|
|
|
if( output_content_type && pt::is_equal_nc(temp_header, Header::content_type) )
|
|
*output_content_type = temp_header_value;
|
|
}
|
|
}
|
|
|
|
temp_header.clear();
|
|
temp_header_ascii.clear();
|
|
temp_header_value.clear();
|
|
temp_header_value_ascii.clear();
|
|
}
|
|
}
|
|
|
|
|
|
void Http::debug_function_append(pt::Space & debug, const char * prefix, const char * start, size_t part_size)
|
|
{
|
|
if( part_size > 0 )
|
|
{
|
|
debug.add(prefix);
|
|
std::string & last_table_str_item = debug.value.value_table.back()->value.value_string;
|
|
last_table_str_item.append(start, part_size);
|
|
}
|
|
}
|
|
|
|
|
|
void Http::debug_function_append(Http * http, const char * prefix, char * data, size_t size)
|
|
{
|
|
pt::Space & debug = *http->debug_info;
|
|
const char * start = data;
|
|
size_t part_size = 0;
|
|
size_t i = 0;
|
|
|
|
while( i < size )
|
|
{
|
|
if( data[i]== '\r' && i+1 < size && data[i+1]=='\n' )
|
|
{
|
|
debug_function_append(debug, prefix, start, part_size);
|
|
i += 2;
|
|
start = data + i;
|
|
part_size = 0;
|
|
}
|
|
else
|
|
if( data[i]== '\n' )
|
|
{
|
|
debug_function_append(debug, prefix, start, part_size);
|
|
i += 1;
|
|
start = data + i;
|
|
part_size = 0;
|
|
}
|
|
else
|
|
{
|
|
part_size += 1;
|
|
i += 1;
|
|
}
|
|
}
|
|
|
|
debug_function_append(debug, prefix, start, part_size);
|
|
}
|
|
|
|
|
|
|
|
int Http::debug_function(CURL * handle, curl_infotype type, char * data, size_t size, void * userdata)
|
|
{
|
|
Http * http = reinterpret_cast<Http*>(userdata);
|
|
|
|
if( http->debug_info )
|
|
{
|
|
switch(type)
|
|
{
|
|
case CURLINFO_TEXT:
|
|
debug_function_append(http, "", data, size);
|
|
break;
|
|
|
|
case CURLINFO_HEADER_IN:
|
|
debug_function_append(http, "Header received: ", data, size);
|
|
break;
|
|
|
|
case CURLINFO_HEADER_OUT:
|
|
debug_function_append(http, "Header sent: ", data, size);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
const wchar_t * Http::method_to_str(Http::Method method)
|
|
{
|
|
switch(method)
|
|
{
|
|
case method_get:
|
|
return L"GET";
|
|
|
|
case method_post:
|
|
return L"POST";
|
|
|
|
case method_put:
|
|
return L"PUT";
|
|
|
|
case method_patch:
|
|
return L"PATCH";
|
|
|
|
case method_delete:
|
|
return L"DELETE";
|
|
|
|
case method_options:
|
|
return L"OPTIONS";
|
|
|
|
default:
|
|
return L"";
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|