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Diffstat (limited to 'doc/markdown/modules/multimap.md')
| -rw-r--r-- | doc/markdown/modules/multimap.md | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/doc/markdown/modules/multimap.md b/doc/markdown/modules/multimap.md index 5d066d67f..db49cc831 100644 --- a/doc/markdown/modules/multimap.md +++ b/doc/markdown/modules/multimap.md @@ -44,6 +44,7 @@ Type attribute means what is matched with this map. The following types are supp * `header` - matches any header specified (must have `header = "Header-Name"` configuration attribute) * `dnsbl` - matches source IP against some DNS blacklist (consider using [RBL](rbl.md) module for this) * `url` - matches URLs in messages against maps +* `filename` - matches attachment filename against map DNS maps are legacy and are not encouraged to use in new projects (use [rbl](rbl.md) for that). @@ -72,7 +73,12 @@ multimap { } ~~~ -To enable pre-filter mode +All maps but `ip` and `dnsbl` support `regexp` mode. In this mode, all keys in maps are treated as regular expressions, for example: + + /example\d+\.com/i + /other\d+\.com/i test + +For performance considerations, use only expressions supported by [hyperscan](http://01org.github.io/hyperscan/dev-reference/compilation.html#pattern-support) as this engine provides blazing performance at no additional cost. Currently, there is no way to distinguish what particular regexp was matched in case if multiple regexp were matched. ### Map filters @@ -94,6 +100,11 @@ URL maps allows another set of filters (by default, url maps are matched using h * `tld:regexp:/re/` - extracts generic information using the specified regular expression from the TLD part * `full:regexp:/re/` - extracts generic information using the specified regular expression from the full URL text +Filename maps support this filters set: + +* `extension` - matches file extension +* `regexp:/re/` - extract data from filename according to some regular expression + Here are some examples of pre-filter configurations: ~~~nginx |