build(tgbot-gen): Changes and additions required to generate the API client with auth (cookie)

I use a standard set of templates, changes are made in api-header.mustache and api-source.mustache. Their _old versions contain the originals. Additions are necessary for the header argument in the generated functions so that you can authenticate using cookies.

api/_build/my-cpp-templates/cpp-restsdk/multipart-source.mustache

@@ -0,0 +1,100 @@
+{{>licenseInfo}}
+#include "{{packageName}}/MultipartFormData.h"
+#include "{{packageName}}/ModelBase.h"
+
+#include <boost/uuid/random_generator.hpp>
+#include <boost/uuid/uuid_io.hpp>
+
+{{#modelNamespaceDeclarations}}
+namespace {{this}} {
+{{/modelNamespaceDeclarations}}
+
+MultipartFormData::MultipartFormData()
+{
+    utility::stringstream_t uuidString;
+    uuidString << boost::uuids::random_generator()();
+    m_Boundary = uuidString.str();
+}
+
+MultipartFormData::MultipartFormData(const utility::string_t& boundary)
+    : m_Boundary(boundary)
+{
+
+}
+
+MultipartFormData::~MultipartFormData()
+{
+}
+
+utility::string_t MultipartFormData::getBoundary()
+{
+    return m_Boundary;
+}
+
+void MultipartFormData::add( std::shared_ptr<HttpContent> content )
+{
+    m_Contents.push_back( content );
+    m_ContentLookup[content->getName()] = content;
+}
+
+bool MultipartFormData::hasContent(const utility::string_t& name) const
+{
+    return m_ContentLookup.find(name) != m_ContentLookup.end();
+}
+
+std::shared_ptr<HttpContent> MultipartFormData::getContent(const utility::string_t& name) const
+{
+    auto result = m_ContentLookup.find(name);
+    if(result == m_ContentLookup.end())
+    {
+        return std::shared_ptr<HttpContent>(nullptr);
+    }
+    return result->second;
+}
+
+void MultipartFormData::writeTo( std::ostream& target )
+{
+    for ( size_t i = 0; i < m_Contents.size(); i++ )
+    {
+        std::shared_ptr<HttpContent> content = m_Contents[i];
+
+        // boundary
+        target << "\r\n" << "--" << utility::conversions::to_utf8string( m_Boundary ) << "\r\n";
+
+        // headers
+        target << "Content-Disposition: " << utility::conversions::to_utf8string( content->getContentDisposition() );
+        if ( content->getName().size() > 0 )
+        {
+            target << "; name=\"" << utility::conversions::to_utf8string( content->getName() ) << "\"";
+        }
+        if ( content->getFileName().size() > 0 )
+        {
+            target << "; filename=\"" << utility::conversions::to_utf8string( content->getFileName() ) << "\"";
+        }
+        target << "\r\n";
+
+        if ( content->getContentType().size() > 0 )
+        {
+            target << "Content-Type: " << utility::conversions::to_utf8string( content->getContentType() ) << "\r\n";
+        }
+
+        target << "\r\n";
+
+        // body
+        std::shared_ptr<std::istream> data = content->getData();
+
+		data->seekg( 0, data->end );
+		std::vector<char> dataBytes( data->tellg() );
+
+		data->seekg( 0, data->beg );
+		data->read( &dataBytes[0], dataBytes.size() );
+
+		std::copy( dataBytes.begin(), dataBytes.end(), std::ostreambuf_iterator<char>( target ) );
+    }
+
+    target << "\r\n--" << utility::conversions::to_utf8string( m_Boundary ) << "--\r\n";
+}
+
+{{#modelNamespaceDeclarations}}
+}
+{{/modelNamespaceDeclarations}}