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-rw-r--r--IkiWiki/Plugin/external.pm25
1 files changed, 24 insertions, 1 deletions
diff --git a/IkiWiki/Plugin/external.pm b/IkiWiki/Plugin/external.pm
index 4c2e5d2fe..204442c1e 100644
--- a/IkiWiki/Plugin/external.pm
+++ b/IkiWiki/Plugin/external.pm
@@ -68,7 +68,22 @@ sub rpc_call ($$;@) { #{{{
return @{$value->value};
}
elsif ($value->isa('RPC::XML::struct')) {
- return %{$value->value};
+ my %hash=%{$value->value};
+
+ # XML-RPC v1 does not allow for
+ # nil/null/None/undef values to be
+ # transmitted, so until
+ # XML::RPC::Parser honours v2
+ # (<nil/>), external plugins send
+ # a hash with one key "null" pointing
+ # to an empty string.
+ if (exists $hash{null} &&
+ $hash{null} eq "" &&
+ int(keys(%hash)) == 1) {
+ return undef;
+ }
+
+ return %hash;
}
else {
return $value->value;
@@ -92,6 +107,14 @@ sub rpc_call ($$;@) { #{{{
error("XML RPC call error, unknown function: $name");
}
+ # XML-RPC v1 does not allow for nil/null/None/undef
+ # values to be transmitted, so until XML::RPC::Parser
+ # honours v2 (<nil/>), send a hash with one key "null"
+ # pointing to an empty string.
+ if (! defined $ret) {
+ $ret={"null" => ""};
+ }
+
my $string=eval { RPC::XML::response->new($ret)->as_string };
if ($@ && ref $ret) {
# One common reason for serialisation to