[pve-devel] [PATCH pve-storage] fix #6450: add file-checksum endpoint to storage API

[Nicolas Frey]

The storage API endpoint now supports an optional 'checksum' parameter.
If set, the checksum is calculated using one of the hashing algorithms
listed in the enum and returned in the 'checksum' return property.

Fixes: https://bugzilla.proxmox.com/show_bug.cgi?id=6450

Signed-off-by: Nicolas Frey <n.frey at proxmox.com>
---
 src/PVE/API2/Storage/Content.pm | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/PVE/API2/Storage/Content.pm b/src/PVE/API2/Storage/Content.pm
index 1fe7303..ea60589 100644
--- a/src/PVE/API2/Storage/Content.pm
+++ b/src/PVE/API2/Storage/Content.pm
@@ -306,6 +306,12 @@ __PACKAGE__->register_method({
                 description => "Volume identifier",
                 type => 'string',
             },
+            checksum => {
+                description => 'The algorithm to calculate the checksum of the file.',
+                enum => [qw(sha512 sha384 sha256 sha224 sha1 md5)],
+                type => 'string',
+                optional => 1,
+            }
         },
     },
     returns => {
@@ -340,6 +346,11 @@ __PACKAGE__->register_method({
                 type => 'boolean',
                 optional => 1,
             },
+            checksum => {
+                description => 'The checksum of the file.',
+                type => 'string',
+                optional => 1,
+            }
         },
     },
     code => sub {
@@ -376,6 +387,11 @@ __PACKAGE__->register_method({
             warn $@ if $@;
         }
 
+        if (exists $param->{checksum}) {
+            print "calculating checksum...\n";
+            $entry->{checksum} = PVE::Tools::get_file_hash($param->{checksum}, $path);
+        }
+
         return $entry;
     },
 });
-- 
2.47.3