[Fixes #12369] Create a command to regenerate the XML metadata (#12396)…

… (#12401)

(cherry picked from commit cc3816d)

Co-authored-by: Emanuele Tajariol <etj@geo-solutions.it>

geonode/base/management/command_utils.py

@@ -0,0 +1,34 @@
+import logging
+from django.conf import settings
+
+DEFAULT_COMMAND_LOGGER_NAME = "geonode.commands"
+
+
+def setup_logger(logger_name=DEFAULT_COMMAND_LOGGER_NAME, formatter_name="command", handler_name="command"):
+    if logger_name not in settings.LOGGING["loggers"]:
+        format = "%(levelname)-7s %(asctime)s %(message)s"
+
+        settings.LOGGING["formatters"][formatter_name] = {
+            "format": format
+        }
+        settings.LOGGING["handlers"][handler_name] = {
+            "level": "DEBUG",
+            "class": "logging.StreamHandler",
+            "formatter": formatter_name
+        }
+        settings.LOGGING["loggers"][logger_name] = {
+            "handlers": [handler_name],
+            "level": "INFO",
+            "propagate": False
+        }
+
+        handler = logging.StreamHandler()
+        handler.setFormatter(logging.Formatter(fmt=format))
+        handler.setLevel(logging.DEBUG)
+
+        logger = logging.getLogger(logger_name)
+        logger.addHandler(handler)
+        logger.setLevel(logging.INFO)
+        logger.propagate = False
+
+        return logger

geonode/catalogue/management/commands/regenerate_xml.py

@@ -0,0 +1,126 @@
+# -*- coding: utf-8 -*-
+#########################################################################
+#
+# Copyright (C) 2023 OSGeo
+#
+# 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#########################################################################
+
+import logging
+
+from django.core.management.base import BaseCommand
+
+from geonode.base.management import command_utils
+from geonode.base.models import ResourceBase
+from geonode.layers.models import Dataset
+
+
+logger = logging.getLogger(__name__)
+
+
+class Command(BaseCommand):
+    help = "Re-create XML metadata documents"
+
+    def add_arguments(self, parser):
+        parser.add_argument(
+            '-l',
+            '--layer',
+            dest="layers",
+            action='append',
+            help="Only process specified layers ")
+
+        parser.add_argument(
+            "--skip-logger-setup",
+            action="store_false",
+            dest="setup_logger",
+            help='Skips setup of the "geonode.br" logger, "br" handler and "br" format if not present in settings',
+        )
+        parser.add_argument(
+            '-d',
+            '--dry-run',
+            dest="dry-run",
+            action='store_true',
+            help="Do not actually perform any change")
+
+    def handle(self, **options):
+        requested_layers = options.get('layers')
+        dry_run = options.get('dry-run')
+
+        if options.get("setup_logger"):
+            logger = command_utils.setup_logger()
+
+        logger.info(f"==== Running command {__name__}")
+        logger.info(f"{self.help}")
+        logger.info("")
+
+        logger.debug(f"DRY-RUN is {dry_run}")
+        logger.debug(f"LAYERS is {requested_layers}")
+
+        try:
+
+            layers = Dataset.objects.all()
+            tot = len(layers)
+            logger.info(f"Total layers in GeoNode: {tot}")
+            i = 0
+            cnt_ok = 0
+            cnt_bad = 0
+            cnt_skip = 0
+
+            instance: ResourceBase
+            for instance in layers:
+                i += 1
+                logger.info(f"- {i}/{tot} Processing layer {instance.id} [{instance.typename}] '{instance.title}'")
+
+                if requested_layers and instance.typename not in requested_layers:
+                    logger.info("  - Layer filtered out by args")
+                    cnt_skip += 1
+                    continue
+
+                if instance.metadata_uploaded and instance.metadata_uploaded_preserve:
+                    logger.info("  - Layer filtered out since it uses custom XML")
+                    cnt_skip += 1
+                    continue
+
+                try:
+                    good = None
+                    if not dry_run:
+                        try:
+                            try:
+                                # the save() method triggers the metadata regeneration
+                                instance.save()
+                                good = True
+                            except Exception as e:
+                                logger.error(f"Error saving instance '{instance.title}': {e}")
+                                raise e
+
+                        except Exception as e:
+                            logger.exception(f"Error processing '{instance.title}': {e}", e)
+
+                    if dry_run or good:
+                        logger.info(f"  - Done {instance.name}")
+                        cnt_ok += 1
+                    else:
+                        logger.warning(f"Metadata couldn't be regenerated for instance '{instance.title}' ")
+                        cnt_bad += 1
+
+                except Exception as e:
+                    raise e
+        except Exception as e:
+            raise e
+
+        logger.info("Work completed" + (" [DRYRUN]" if dry_run else ""))
+        logger.info(f"- Metadata regenerated : {cnt_ok}")
+        logger.info(f"- Metadata in error    : {cnt_bad}")
+        logger.info(f"- Resources skipped    : {cnt_skip}")

geonode/catalogue/models.py

@@ -80,11 +80,14 @@ def catalogue_post_save(instance, sender, **kwargs):
                     resource=resources.get(), url=metadata_url, extension="xml", link_type="metadata"
                 ).update(**_d)
 
-    # generate an XML document (GeoNode's default is ISO)
     if instance.metadata_uploaded and instance.metadata_uploaded_preserve:
         md_doc = etree.tostring(dlxml.fromstring(instance.metadata_xml))
     else:
-        md_doc = catalogue.catalogue.csw_gen_xml(instance, settings.CATALOG_METADATA_TEMPLATE)
+        # generate an XML document (GeoNode's default is ISO)
+        raw_xml = catalogue.catalogue.csw_gen_xml(instance, settings.CATALOG_METADATA_TEMPLATE)
+        md_obj = dlxml.fromstring(raw_xml, parser=etree.XMLParser(remove_blank_text=True))
+        md_doc = etree.tostring(md_obj, pretty_print=True, encoding="unicode")
+
     try:
         csw_anytext = catalogue.catalogue.csw_gen_anytext(md_doc)
     except Exception as e: