[Fixes #12326] Assets: implement migration for old uploaded files (#1…

…2411)

* [Fixes #12124] GNIP 100: Assets (#12335)

* [Fixes #12124] GNIP 100: Assets
---------

Co-authored-by: etj <[email protected]>

* [Fixes #12226] Directory assets (#12337)

[Fixes #12226] Directory assets
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Co-authored-by: etj <[email protected]>

* [Fixes #12341] Asset download handler and link generator (#12343)

* [Fixes #12341] Download handler fix
* [Fixes #12341] Assets: link generation (#12342)
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Co-authored-by: Emanuele Tajariol <[email protected]>

* [Fixes #12326] Assets: implement migration for old uploaded files

* [Fixes #12326] Assets: implement migration for old uploaded files

* [Fixes #12326] Assets: implement migration for old uploaded files

* [Fixes #12326] rollback requirements

---------

Co-authored-by: etj <[email protected]>
Co-authored-by: Emanuele Tajariol <[email protected]>

geonode/assets/management/commands/migrate_file_to_assets.py

@@ -0,0 +1,140 @@
+#########################################################################
+#
+# Copyright (C) 2024 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 os
+import sys
+import shutil
+import logging
+from django.conf import settings
+from geonode.assets.local import LocalAssetHandler
+from geonode.assets.models import LocalAsset
+from geonode.base.management.commands.helpers import confirm
+from django.core.management.base import BaseCommand
+from geonode.geoserver.helpers import gs_catalog
+
+from geonode.base.models import ResourceBase
+
+logger = logging.getLogger()
+handler = logging.StreamHandler(sys.stdout)
+logger.setLevel(logging.INFO)
+formatter = logging.Formatter("%(asctime)s - %(levelname)s - %(message)s")
+handler.setFormatter(formatter)
+logger.addHandler(handler)
+
+
+class Command(BaseCommand):
+
+    help = """
+        Migrate the files from MEDIA_ROOT to ASSETS_ROOT, update LocalAsset.location and GeoServer
+        REF: https://github.com/GeoNode/geonode/issues/12326
+        """
+
+    def add_arguments(self, parser):
+        parser.add_argument(
+            '-n',
+            '--no-input',
+            dest='noinput',
+            default=False,
+            action='store_true',
+            help='Does not ask for confirmation for the run'
+        )
+        parser.add_argument(
+            '-d',
+            '--dryrun',
+            dest='dryrun',
+            default=False,
+            action='store_true',
+            help='Perform a dryrun, will show the File to be moved, their new path and the file to be deleted'
+        )
+
+    def handle(self, **options):
+        question = "By running this command you are going to move all the files of your Resources into the ASSETS_ROOT. Do you want to continue?"
+
+        if not options.get('noinput'):
+            result = confirm(question, resp=True)
+            if not result:
+                return
+
+        dryrun = options.get('dryrun')
+
+        handler = LocalAssetHandler()
+
+        logger.info("Retrieving all assets with some files")
+
+        for asset in LocalAsset.objects.iterator():
+            logger.info(f"processing asset: {asset.title}")
+
+            source = os.path.dirname(asset.location[0])
+
+            if dryrun:
+                logger.info(f"Files found: {asset.location}")
+                continue
+
+            if settings.ASSETS_ROOT in source:
+                logger.info("The location is already the asset root, skipping...")
+                continue
+
+            if not os.path.exists(source):
+                logger.warning("Source path of the file for Asset does not exists, skipping...")
+                continue
+
+            try:
+
+                logger.info("Moving file to the asset folder")
+
+                dest = shutil.move(source, handler._create_asset_dir())
+
+                logger.info("Fixing perms")
+                if settings.FILE_UPLOAD_DIRECTORY_PERMISSIONS is not None:
+                    os.chmod(os.path.dirname(dest), settings.FILE_UPLOAD_DIRECTORY_PERMISSIONS)
+
+                if settings.FILE_UPLOAD_PERMISSIONS is not None:
+                    os.chmod(dest, settings.FILE_UPLOAD_PERMISSIONS)
+
+            except Exception as e:
+                logger.error(e)
+                continue
+
+            logger.info("Updating location field with new folder value")
+
+            asset.location = [x.replace(source, dest) for x in asset.location]
+            asset.save()
+
+            logger.info("Checking if geoserver should be updated")
+            asset_obj = asset.link_set.values_list('resource', flat=True).first()
+            if not asset_obj:
+                logger.warning("No resources connected to the asset, skipping resource update...")
+                continue
+            resource = ResourceBase.objects.get(pk=asset_obj)
+            if resource.subtype == 'raster':
+                logger.info("Updating GeoServer value")
+
+                store_to_update = gs_catalog.get_layer(resource.get_real_instance().alternate)\
+                    .resource\
+                    .store
+
+                raster_file = [x for x in asset.location if os.path.basename(x).split('.')[-1] in ["tiff", "tif", "geotiff", "geotif"]]
+                store_to_update.url = f"file:{raster_file[0]}"
+                try:
+                    gs_catalog.save(store_to_update)
+                except Exception:
+                    logger.error(f"Error during GeoServer update for resource {resource}, please check GeoServer logs")
+                logger.info("Geoserver Updated")
+
+        logger.info("Migration completed")