Fix for Nginx white screen of death, fixes #538

ee/cli/plugins/site_functions.py

@@ -566,6 +566,14 @@ def site_package_check(self, stype):
 
         if not EEAptGet.is_installed(self, check_nginx):
             apt_packages = apt_packages + EEVariables.ee_nginx
+        else:
+            # Fix for Nginx white screen death
+            if not EEFileUtils.grep(self, '/etc/nginx/fastcgi_params',
+                                    'SCRIPT_FILENAME'):
+                with open('/etc/nginx/fastcgi_params', encoding='utf-8',
+                          mode='a') as ee_nginx:
+                    ee_nginx.write('fastcgi_param \tSCRIPT_FILENAME '
+                                   '\t$request_filename;')
 
     if stype in ['php', 'mysql', 'wp', 'wpsubdir', 'wpsubdomain']:
         Log.debug(self, "Setting apt_packages variable for PHP")

ee/cli/plugins/stack.py

@@ -361,6 +361,17 @@ class EEStackController(CementBaseController):
                                     out=ee_nginx)
                     ee_nginx.close()
 
+                    # Fix whitescreen of death beacuse of missing value
+                    # fastcgi_param SCRIPT_FILENAME $request_filename; in file
+                    # /etc/nginx/fastcgi_params
+
+                    if not EEFileUtils.grep(self, '/etc/nginx/fastcgi_params',
+                                            'SCRIPT_FILENAME'):
+                        with open('/etc/nginx/fastcgi_params',
+                                  encoding='utf-8', mode='a') as ee_nginx:
+                            ee_nginx.write('fastcgi_param \tSCRIPT_FILENAME '
+                                           '\t$request_filename;')
+
                     # Pagespeed configuration
                     Log.debug(self, 'Writting the Pagespeed Global '
                               'configuration to file /etc/nginx/conf.d/'