Download attachments backup (#3663)

* [enhance] provision to download attachments backup

* [fix] enqueue files backup job if job not in queue

frappe/desk/page/backups/backups.js

@@ -9,6 +9,13 @@ frappe.pages['backups'].on_page_load = function(wrapper) {
 		frappe.set_route('Form', 'System Settings');
 	});
 
+	page.add_inner_button(__("Download Files Backup"), function () {
+		frappe.call({
+			method:"frappe.desk.page.backups.backups.schedule_files_backup",
+			args: {"user_email": frappe.session.user_email}
+		});
+	});
+
 	frappe.breadcrumbs.add("Setup");
 
 	$(frappe.render_template("backups")).appendTo(page.body.addClass("no-border"));

frappe/desk/page/backups/backups.py

@@ -1,6 +1,7 @@
 import os
 import frappe
-from frappe.utils import get_site_path, cint
+from frappe import _
+from frappe.utils import get_site_path, cint, get_url
 from frappe.utils.data import convert_utc_to_user_timezone
 import datetime
 
@@ -57,3 +58,29 @@ def delete_downloadable_backups():
 
 	if len(files) > backup_limit:
 		cleanup_old_backups(path, files, backup_limit)
+
+@frappe.whitelist()
+def schedule_files_backup(user_email):
+	from frappe.utils.background_jobs import enqueue, get_jobs
+	queued_jobs = get_jobs(site=frappe.local.site, queue="long")
+	method = 'frappe.desk.page.backups.backups.backup_files_and_notify_user'
+
+	if method not in queued_jobs[frappe.local.site]:
+		enqueue("frappe.desk.page.backups.backups.backup_files_and_notify_user", queue='long', user_email=user_email)
+		frappe.msgprint(_("Queued for backup. You will receive an email with the download link"))
+	else:
+		frappe.msgprint(_("Backup job is already queued. You will receive an email with the download link"))
+
+def backup_files_and_notify_user(user_email=None):
+	from frappe.utils.backups import backup
+	backup_files = backup(with_files=True)
+	get_downloadable_links(backup_files)
+
+	subject = "File backup is ready"
+	message = frappe.render_template('frappe/templates/emails/file_backup_notification.html', backup_files, is_path=True)
+	frappe.sendmail(recipients=[user_email], subject=subject, message=message)
+
+def get_downloadable_links(backup_files):
+	for key in ['backup_path_files', 'backup_path_private_files']:
+		path = backup_files[key]
+		backup_files[key] = get_url('/'.join(path.split('/')[-2:]))

frappe/templates/emails/file_backup_notification.html

@@ -0,0 +1,6 @@
+Hello,
+
+<br>
+<p> Please use following links to download file backup. </p>
+<p> Public Files Backup: <a href='{{ backup_path_files }}'>{{ backup_path_files }}</a> </p>
+<p> Private Files Backup: <a href='{{ backup_path_private_files }}'>{{ backup_path_private_files }}</a> </p>

frappe/utils/backups.py

@@ -217,7 +217,8 @@ def backup(with_files=False, backup_path_db=None, backup_path_files=None, quiet=
 	odb = scheduled_backup(ignore_files=not with_files, backup_path_db=backup_path_db, backup_path_files=backup_path_files, force=True)
 	return {
 		"backup_path_db": odb.backup_path_db,
-		"backup_path_files": odb.backup_path_files
+		"backup_path_files": odb.backup_path_files,
+		"backup_path_private_files": odb.backup_path_private_files
 	}
 
 if __name__ == "__main__":