Add GLOB match type to replace PREFIX for tracker patterns

Introduces a wildcard-based match type that supports prefix, suffix,
and sandwich patterns (e.g. ph_phc_*_posthog). The SQL matching uses
starts_with/ends_with on the parts split at '*', avoiding LIKE and
its underscore escaping issues. Existing PREFIX rows are migrated to
GLOB with a trailing '*'.

Signed-off-by: Émile Ré <emile@getprobo.com>

pkg/coredata/migrations/20260506T193600Z.sql

@@ -0,0 +1,15 @@
+-- Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
+--
+-- Permission to use, copy, modify, and/or distribute this software for any
+-- purpose with or without fee is hereby granted, provided that the above
+-- copyright notice and this permission notice appear in all copies.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+-- REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+-- AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+-- INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+-- LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+-- OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+-- PERFORMANCE OF THIS SOFTWARE.
+
+ALTER TYPE cookie_pattern_match_type ADD VALUE IF NOT EXISTS 'GLOB';

pkg/coredata/migrations/20260506T193601Z.sql

@@ -0,0 +1,18 @@
+-- Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
+--
+-- Permission to use, copy, modify, and/or distribute this software for any
+-- purpose with or without fee is hereby granted, provided that the above
+-- copyright notice and this permission notice appear in all copies.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+-- REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+-- AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+-- INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+-- LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+-- OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+-- PERFORMANCE OF THIS SOFTWARE.
+
+UPDATE tracker_patterns
+SET pattern = pattern || '*',
+    match_type = 'GLOB'
+WHERE match_type = 'PREFIX';

pkg/coredata/tracker_pattern.go

@@ -239,15 +239,17 @@ WHERE
 	AND cookie_banner_id = @cookie_banner_id
 	AND tracker_type = @tracker_type
 	AND (
-		(match_type = @match_type_prefix AND starts_with(@identifier, pattern))
+		(match_type = @match_type_glob
+		 AND starts_with(@identifier, split_part(pattern, '*', 1))
+		 AND ends_with(@identifier, split_part(pattern, '*', 2))
+		 AND length(@identifier) >= length(pattern) - 1)
 		OR (match_type = @match_type_exact AND pattern = @identifier)
 	)
 ORDER BY
 	CASE WHEN match_type = @match_type_exact AND pattern = @identifier THEN 0
-	     WHEN match_type = @match_type_prefix THEN 1
+	     ELSE 1
-	     ELSE 2
 	END,
-	LENGTH(pattern) DESC
+	length(pattern) - 1 DESC
 LIMIT 1;
 `
 
@@ -257,7 +259,7 @@ LIMIT 1;
 		"cookie_banner_id": cookieBannerID,
 		"tracker_type":     trackerType,
 		"identifier":       identifier,
-		"match_type_prefix": TrackerPatternMatchTypePrefix,
+		"match_type_glob":  TrackerPatternMatchTypeGlob,
 		"match_type_exact": TrackerPatternMatchTypeExact,
 	}
 	maps.Copy(args, scope.SQLArguments())

pkg/coredata/tracker_pattern_match_type.go

@@ -24,12 +24,13 @@ type TrackerPatternMatchType string
 const (
 	TrackerPatternMatchTypeExact  TrackerPatternMatchType = "EXACT"
 	TrackerPatternMatchTypePrefix TrackerPatternMatchType = "PREFIX"
+	TrackerPatternMatchTypeGlob   TrackerPatternMatchType = "GLOB"
 )
 
 func TrackerPatternMatchTypes() []TrackerPatternMatchType {
 	return []TrackerPatternMatchType{
 		TrackerPatternMatchTypeExact,
-		TrackerPatternMatchTypePrefix,
+		TrackerPatternMatchTypeGlob,
 	}
 }
 
@@ -53,6 +54,8 @@ func (m *TrackerPatternMatchType) Scan(value any) error {
 		*m = TrackerPatternMatchTypeExact
 	case TrackerPatternMatchTypePrefix:
 		*m = TrackerPatternMatchTypePrefix
+	case TrackerPatternMatchTypeGlob:
+		*m = TrackerPatternMatchTypeGlob
 	default:
 		return fmt.Errorf("invalid TrackerPatternMatchType value: %q", v)
 	}
@@ -62,7 +65,8 @@ func (m *TrackerPatternMatchType) Scan(value any) error {
 func (m TrackerPatternMatchType) Value() (driver.Value, error) {
 	switch m {
 	case TrackerPatternMatchTypeExact,
-		TrackerPatternMatchTypePrefix:
+		TrackerPatternMatchTypePrefix,
+		TrackerPatternMatchTypeGlob:
 		return string(m), nil
 	default:
 		return nil, fmt.Errorf("invalid TrackerPatternMatchType: %s", m)