From dc6430d887d92fbebf48e14c500bb81423f3b950 Mon Sep 17 00:00:00 2001
From: Louis Chemineau <louis@chmn.me>
Date: Mon, 7 Feb 2022 17:42:05 +0100
Subject: [PATCH] Hash the storage with md5 if length > 64

Signed-off-by: Louis Chemineau <louis@chmn.me>
---
 list_problematic_files_on_fs.sh | 16 +++++++++++++---
 solvable_files.sh               | 20 ++++++++++++++++----
 2 files changed, 29 insertions(+), 7 deletions(-)

diff --git a/list_problematic_files_on_fs.sh b/list_problematic_files_on_fs.sh
index 6786508..69c4756 100755
--- a/list_problematic_files_on_fs.sh
+++ b/list_problematic_files_on_fs.sh
@@ -18,10 +18,20 @@ function check_file() {
 
 	if [ "$username" == "__groupfolders" ]
 	then
-		# Two // to match the DB output.
-		echo "local::$data_dir//$relative_filepath"
+		# Ending with '/' to match the DB output.
+		storage="local::$data_dir/"
+		problematic_file="$relative_filepath"
 	else
-		echo "home::$relative_filepath"
+		storage="home::$username"
+		problematic_file="${relative_filepath/#$username\//}"
+	fi
+
+	if [ "${#storage}" -le "64" ]
+	then
+		echo "$storage/$problematic_file"
+	else
+		storage_md5=$(printf '%s' "$storage" | md5sum | awk '{print $1}')
+		echo "$storage_md5/$problematic_file"
 	fi
 }
 export -f check_file
diff --git a/solvable_files.sh b/solvable_files.sh
index 89168fa..7a5ab6e 100755
--- a/solvable_files.sh
+++ b/solvable_files.sh
@@ -36,6 +36,12 @@ function correct_mtime() {
 
 	if [ "$username" == "__groupfolders" ]
 	then
+		storage="local::$data_dir/"
+		if [ "${#storage}" -gt "64" ]
+		then
+			storage=$(printf '%s' "$storage" | md5sum | awk '{print $1}')
+		fi
+
 		if [ "$db_type" == "mysql" ]
 		then
 			mtime_in_db=$(
@@ -49,7 +55,7 @@ function correct_mtime() {
 					--execute="\
 						SELECT mtime
 						FROM oc_storages JOIN oc_filecache ON oc_storages.numeric_id = oc_filecache.storage \
-						WHERE oc_storages.id='local::$data_dir/' AND oc_filecache.path=FROM_BASE64('$base64_relative_filepath')" \
+						WHERE oc_storages.id='$storage' AND oc_filecache.path=FROM_BASE64('$base64_relative_filepath')" \
 					"$db_name"
 			)
 		elif [ "$db_type" == "pgsql" ]
@@ -62,10 +68,16 @@ function correct_mtime() {
 					--command="\
 						SELECT mtime
 						FROM oc_storages JOIN oc_filecache ON oc_storages.numeric_id = oc_filecache.storage \
-						WHERE oc_storages.id='local::$data_dir/' AND oc_filecache.path=CONVERT_FROM(DECODE('$base64_relative_filepath', 'base64'), 'UTF-8')"
+						WHERE oc_storages.id='$storage' AND oc_filecache.path=CONVERT_FROM(DECODE('$base64_relative_filepath', 'base64'), 'UTF-8')"
 			)
 		fi
 	else
+		storage="home::$username"
+		if [ "${#storage}" -gt "64" ]
+		then
+			storage=$(printf '%s' "$storage" | md5sum | awk '{print $1}')
+		fi
+
 		if [ "$db_type" == "mysql" ]
 		then
 			mtime_in_db=$(
@@ -79,7 +91,7 @@ function correct_mtime() {
 					--execute="\
 						SELECT mtime
 						FROM oc_storages JOIN oc_filecache ON oc_storages.numeric_id = oc_filecache.storage \
-						WHERE oc_storages.id='home::$username' AND oc_filecache.path=FROM_BASE64('$base64_relative_filepath_without_username')" \
+						WHERE oc_storages.id='$storage' AND oc_filecache.path=FROM_BASE64('$base64_relative_filepath_without_username')" \
 					"$db_name"
 			)
 		elif [ "$db_type" == "pgsql" ]
@@ -92,7 +104,7 @@ function correct_mtime() {
 					--command="\
 						SELECT mtime
 						FROM oc_storages JOIN oc_filecache ON oc_storages.numeric_id = oc_filecache.storage \
-						WHERE oc_storages.id='home::$username' AND oc_filecache.path=CONVERT_FROM(DECODE('$base64_relative_filepath_without_username', 'base64'), 'UTF-8')"
+						WHERE oc_storages.id='$storage' AND oc_filecache.path=CONVERT_FROM(DECODE('$base64_relative_filepath_without_username', 'base64'), 'UTF-8')"
 			)
 		fi
 	fi