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authorBence Ferdinandy <bence@ferdinandy.com>2024-03-13 13:48:38 +0100
committerRobin Jarry <robin@jarry.cc>2024-03-25 23:11:22 +0100
commit6ffc0ed5991bef69a50cbc22647af0a6a0e0a895 (patch)
tree268c12d3a9104ae5b5580eda15488914a8abcd6b /config
parent523ca15a3b4882a4e49eb4736cc2d5d11b8df9a7 (diff)
downloadaerc-6ffc0ed5991bef69a50cbc22647af0a6a0e0a895.tar.gz
filters: add matching against attachment filename
The mimetype of attachments are set by the sender, which can results in attachments getting not so useful mimetypes (e.g. application/octet-stream for a csv). Allow matching filter against filenames directly, by adding the `.filename,` and `.filename,~` syntax, similarly to headers. Changelog-added: Match filters on filename via `.filename,~<regexp> =`. Signed-off-by: Bence Ferdinandy <bence@ferdinandy.com> Acked-by: Robin Jarry <robin@jarry.cc>
Diffstat (limited to 'config')
-rw-r--r--config/filters.go16
1 files changed, 16 insertions, 0 deletions
diff --git a/config/filters.go b/config/filters.go
index 1bbeaa30..e843c5fa 100644
--- a/config/filters.go
+++ b/config/filters.go
@@ -14,6 +14,7 @@ const (
FILTER_MIMETYPE FilterType = iota
FILTER_HEADER
FILTER_HEADERS
+ FILTER_FILENAME
)
type FilterConfig struct {
@@ -37,7 +38,22 @@ func parseFilters(file *ini.File) error {
Command: key.Value(),
Filter: key.Name(),
}
+
switch {
+ case strings.HasPrefix(filter.Filter, ".filename,~"):
+ filter.Type = FILTER_FILENAME
+ regex := filter.Filter[strings.Index(filter.Filter, "~")+1:]
+ filter.Regex, err = regexp.Compile(regex)
+ if err != nil {
+ return err
+ }
+ case strings.HasPrefix(filter.Filter, ".filename,"):
+ filter.Type = FILTER_FILENAME
+ value := filter.Filter[strings.Index(filter.Filter, ",")+1:]
+ filter.Regex, err = regexp.Compile(regexp.QuoteMeta(value))
+ if err != nil {
+ return err
+ }
case strings.Contains(filter.Filter, ",~"):
filter.Type = FILTER_HEADER
//nolint:gocritic // guarded by strings.Contains