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qgsserverogcapi.cpp
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qgsserverogcapi.cpp
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/***************************************************************************
qgsserverogcapi.cpp - QgsServerOgcApi
---------------------
begin : 10.7.2019
copyright : (C) 2019 by Alessandro Pasotti
email : elpaso at itopen dot it
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include <QDir>
#include <QDebug>
#include <QtGlobal>
#include "qgsserverogcapi.h"
#include "qgsserverogcapihandler.h"
#include "qgsmessagelog.h"
#include "qgsapplication.h"
QMap<QgsServerOgcApi::ContentType, QStringList> QgsServerOgcApi::sContentTypeMime = [ ]() -> QMap<QgsServerOgcApi::ContentType, QStringList>
{
QMap<QgsServerOgcApi::ContentType, QStringList> map;
map[QgsServerOgcApi::ContentType::JSON] = QStringList { QStringLiteral( "application/json" ) };
map[QgsServerOgcApi::ContentType::GEOJSON] = QStringList {
QStringLiteral( "application/geo+json" ),
QStringLiteral( "application/vnd.geo+json" ),
QStringLiteral( "application/geojson" )
};
map[QgsServerOgcApi::ContentType::HTML] = QStringList { QStringLiteral( "text/html" ) };
map[QgsServerOgcApi::ContentType::OPENAPI3] = QStringList { QStringLiteral( "application/vnd.oai.openapi+json;version=3.0" ) };
map[QgsServerOgcApi::ContentType::XML] = QStringList { QStringLiteral( "application/xml" ) };
return map;
}();
QHash<QgsServerOgcApi::ContentType, QList<QgsServerOgcApi::ContentType>> QgsServerOgcApi::sContentTypeAliases = [ ]() -> QHash<ContentType, QList<ContentType>>
{
QHash<QgsServerOgcApi::ContentType, QList<QgsServerOgcApi::ContentType>> map;
map[ContentType::JSON] = { QgsServerOgcApi::ContentType::GEOJSON, QgsServerOgcApi::ContentType::OPENAPI3 };
return map;
}();
QgsServerOgcApi::QgsServerOgcApi( QgsServerInterface *serverIface, const QString &rootPath, const QString &name, const QString &description, const QString &version ):
QgsServerApi( serverIface ),
mRootPath( rootPath ),
mName( name ),
mDescription( description ),
mVersion( version )
{
}
QgsServerOgcApi::~QgsServerOgcApi()
{
//qDebug() << "API destroyed: " << name();
}
void QgsServerOgcApi::registerHandler( QgsServerOgcApiHandler *handler )
{
std::shared_ptr<QgsServerOgcApiHandler> hp( handler );
mHandlers.emplace_back( std::move( hp ) );
}
QUrl QgsServerOgcApi::sanitizeUrl( const QUrl &url )
{
// Since QT 5.12 NormalizePathSegments does not collapse double slashes
QUrl u { url.adjusted( QUrl::StripTrailingSlash | QUrl::NormalizePathSegments ) };
if ( u.path().contains( QLatin1String( "//" ) ) )
{
u.setPath( u.path().replace( QLatin1String( "//" ), QChar( '/' ) ) );
}
return u;
}
void QgsServerOgcApi::executeRequest( const QgsServerApiContext &context ) const
{
// Get url
auto path { sanitizeUrl( context.request()->url() ).path() };
// Find matching handler
auto hasMatch { false };
for ( const auto &h : mHandlers )
{
QgsMessageLog::logMessage( QStringLiteral( "Checking API path %1 for %2 " ).arg( path, h->path().pattern() ), QStringLiteral( "Server" ), Qgis::Info );
if ( h->path().match( path ).hasMatch() )
{
hasMatch = true;
// Execute handler
QgsMessageLog::logMessage( QStringLiteral( "Found API handler %1" ).arg( QString::fromStdString( h->operationId() ) ), QStringLiteral( "Server" ), Qgis::Info );
// May throw QgsServerApiBadRequestException or JSON exceptions on serializing
try
{
h->handleRequest( context );
}
catch ( json::exception &ex )
{
throw QgsServerApiInternalServerError( QStringLiteral( "The API handler returned an error: %1" ).arg( ex.what() ) );
}
break;
}
}
// Throw
if ( ! hasMatch )
{
throw QgsServerApiBadRequestException( QStringLiteral( "Requested URI does not match any registered API handler" ) );
}
}
const QMap<QgsServerOgcApi::ContentType, QStringList> QgsServerOgcApi::contentTypeMimes()
{
return sContentTypeMime;
}
const QHash<QgsServerOgcApi::ContentType, QList<QgsServerOgcApi::ContentType> > QgsServerOgcApi::contentTypeAliases()
{
return sContentTypeAliases;
}
std::string QgsServerOgcApi::relToString( const Rel &rel )
{
static QMetaEnum metaEnum = QMetaEnum::fromType<QgsServerOgcApi::Rel>();
std::string val { metaEnum.valueToKey( rel ) };
std::replace( val.begin(), val.end(), '_', '-' );
return val;
}
QString QgsServerOgcApi::contentTypeToString( const ContentType &ct )
{
static QMetaEnum metaEnum = QMetaEnum::fromType<ContentType>();
QString result { metaEnum.valueToKey( ct ) };
return result.replace( '_', '-' );
}
std::string QgsServerOgcApi::contentTypeToStdString( const ContentType &ct )
{
static QMetaEnum metaEnum = QMetaEnum::fromType<ContentType>();
return metaEnum.valueToKey( ct );
}
QString QgsServerOgcApi::contentTypeToExtension( const ContentType &ct )
{
return contentTypeToString( ct ).toLower();
}
QgsServerOgcApi::ContentType QgsServerOgcApi::contenTypeFromExtension( const std::string &extension )
{
const QString exts = QString::fromStdString( extension );
for ( auto it = QgsServerOgcApi::contentTypeMimes().constBegin();
it != QgsServerOgcApi::contentTypeMimes().constEnd();
++it )
{
const auto constValues = it.value();
for ( const auto &value : constValues )
{
if ( value.contains( exts, Qt::CaseSensitivity::CaseInsensitive ) )
{
return it.key();
}
}
}
// Default to JSON, but log a warning!
QgsMessageLog::logMessage( QStringLiteral( "Content type for extension %1 not found! Returning default (JSON)" ).arg( exts ),
QStringLiteral( "Server" ),
Qgis::Warning );
return QgsServerOgcApi::ContentType::JSON;
}
std::string QgsServerOgcApi::mimeType( const QgsServerOgcApi::ContentType &contentType )
{
if ( ! sContentTypeMime.contains( contentType ) )
{
return "";
}
return sContentTypeMime.value( contentType ).first().toStdString();
}
const std::vector<std::shared_ptr<QgsServerOgcApiHandler> > QgsServerOgcApi::handlers() const
{
return mHandlers;
}