[Server 3.0] now needs a qApp

python/server/qgsserver.sip

@@ -162,16 +162,11 @@ class QgsServer
 %End
 
   public:
-    QgsServer();
-    ~QgsServer();
-    /** Server initialization: intialise QGIS ang QT core application.
-     * This method is automatically called by handleRequest if it wasn't
-     * explicitly called before
-     * @note Not available in Python bindings
+    /** Creates the server instance
+     * @param captureOutput set to false for stdout output (FCGI)
      */
-    //void init( int argc, char ** argv );
-    //! The following is mainly for python bindings, that do not pass argc/argv
-    void init();
+    QgsServer(  bool captureOutput = true );
+    ~QgsServer();
 
     /** Set environment variable
      * @param var environment variable name

src/server/qgis_map_serv.cpp

@@ -21,6 +21,7 @@
 #include "qgsserver.h"
 
 #include <fcgi_stdio.h>
+#include <stdlib.h>
 
 int fcgi_accept()
 {
@@ -36,12 +37,14 @@ int fcgi_accept()
 
 int main( int argc, char * argv[] )
 {
-  QgsServer server( argc, argv );
+  QgsApplication app( argc, argv, getenv( "DISPLAY" ), QString(), "server" );
+  QgsServer server( false );
   // Starts FCGI loop
   while ( fcgi_accept() >= 0 )
   {
     server.handleRequest();
   }
+  app.exitQgis();
   return 0;
 }
 

src/server/qgsserver.cpp

@@ -68,31 +68,25 @@ bool QgsServer::sInitPython = true;
 #endif
 // Initialization must run once for all servers
 bool QgsServer::sInitialised =  false;
-char* QgsServer::sArgv[1];
-int QgsServer::sArgc;
-QgsApplication* QgsServer::sQgsApplication = nullptr;
-bool QgsServer::sCaptureOutput = false;
+bool QgsServer::sCaptureOutput = true;
 
 
 
-QgsServer::QgsServer( int &argc, char **argv )
-{
-  init( argc, argv );
-  saveEnvVars();
-}
-
-
-QgsServer::QgsServer()
+QgsServer::QgsServer( bool captureOutput )
 {
+  // Must be already instanciated
+  if ( qApp == nullptr )
+  {
+    abort();
+  }
+  sCaptureOutput = captureOutput;
   init();
   saveEnvVars();
 }
 
 
 QgsServer::~QgsServer()
 {
-  if ( sQgsApplication )
-    sQgsApplication->exitQgis();
 }
 
 
@@ -310,34 +304,18 @@ QString QgsServer::configPath( const QString& defaultConfigPath, const QMap<QStr
 
 
 /**
- * This is used in python bindings only
+ * Server initialization
  */
-bool QgsServer::init()
+bool QgsServer::init( )
 {
   if ( sInitialised )
   {
     return false;
   }
 
-  sArgv[0] = serverName().toUtf8().data();
-  sArgc = 1;
-  sCaptureOutput = true;
 #ifdef HAVE_SERVER_PYTHON_PLUGINS
   sInitPython = false;
 #endif
-  return init( sArgc , sArgv );
-}
-
-
-/**
- * Server initialization
- */
-bool QgsServer::init( int & argc, char ** argv )
-{
-  if ( sInitialised )
-  {
-    return false;
-  }
 
   QgsServerLogger::instance();
 
@@ -353,8 +331,6 @@ bool QgsServer::init( int & argc, char ** argv )
     QSettings::setPath( QSettings::IniFormat, QSettings::UserScope, optionsPath );
   }
 
-  sQgsApplication = new QgsApplication( argc, argv, getenv( "DISPLAY" ), QString(), "server" );
-
   QCoreApplication::setOrganizationName( QgsApplication::QGIS_ORGANIZATION_NAME );
   QCoreApplication::setOrganizationDomain( QgsApplication::QGIS_ORGANIZATION_DOMAIN );
   QCoreApplication::setApplicationName( QgsApplication::QGIS_APPLICATION_NAME );
@@ -410,7 +386,6 @@ bool QgsServer::init( int & argc, char ** argv )
   // Store the config file path
   sConfigFilePath = new QString( defaultConfigFilePath );
 
-
   //create cache for capabilities XML
   sCapabilitiesCache = new QgsCapabilitiesCache();
   sMapRenderer =  new QgsMapRenderer;
@@ -482,7 +457,8 @@ QPair<QByteArray, QByteArray> QgsServer::handleRequest( const QString& queryStri
   // performances and memory in the long run
   sMapRenderer->rendererContext()->setExpressionContext( QgsExpressionContext() );
 
-  sQgsApplication->processEvents();
+  qApp->processEvents();
+
   if ( logLevel < 1 )
   {
     time.start();

src/server/qgsserver.h

@@ -47,22 +47,12 @@
 class SERVER_EXPORT QgsServer
 {
   public:
-    /**
-     * Standard ctor for CGI/FCGI
-     * @note Not available in Python bindings
+    /** Creates the server instance
+     * @param captureOutput set to false for stdout output (FCGI)
      */
-    QgsServer( int & argc, char ** argv );
-    //! The following is mainly for python bindings, that do not pass argc/argv
-    QgsServer();
+    QgsServer( bool captureOutput = true );
     ~QgsServer();
 
-    /** Server initialization: intialise QGIS ang QT core application.
-     * @note Not available in Python bindings
-     */
-    static bool init( int & argc, char ** argv );
-    //! The following is mainly for python bindings, that do not pass argc/argv
-    static bool init();
-
     /** Set environment variable
      * @param var environment variable name
      * @param val value
@@ -94,6 +84,9 @@ class SERVER_EXPORT QgsServer
 
   private:
 
+    /** Server initialization */
+    static bool init();
+
     void saveEnvVars();
 
     /** Saves environment variable into mEnvironmentVariables if defined*/
@@ -130,9 +123,6 @@ class SERVER_EXPORT QgsServer
 #endif
     //! Initialization must run once for all servers
     static bool sInitialised;
-    static char* sArgv[1];
-    static int sArgc;
-    static QgsApplication* sQgsApplication;
     static bool sCaptureOutput;
 
     /** Pass important environment variables to the fcgi processes*/

tests/src/python/test_qgsserver.py

@@ -21,7 +21,7 @@
 import email
 from io import StringIO
 from qgis.server import QgsServer
-from qgis.core import QgsMessageLog
+from qgis.core import QgsMessageLog, QgsApplication
 from qgis.testing import unittest
 from utilities import unitTestDataPath
 import osgeo.gdal
@@ -32,6 +32,14 @@
 
 class TestQgsServer(unittest.TestCase):
 
+    @classmethod
+    def setUpClass(cls):
+        cls.app = QgsApplication([], False)
+
+    @classmethod
+    def tearDownClass(cls):
+        cls.app.exitQgis()
+
     def setUp(self):
         """Create the server instance"""
         self.testdata_path = unitTestDataPath('qgis_server') + '/'