From a84fa75165f0ec80a3bf604939ca55f9076c1282 Mon Sep 17 00:00:00 2001
From: Paul Duncan <pabs@pablotron.org>
Date: Sat, 19 Feb 2022 22:53:59 -0500
Subject: dbstore: add CveSearch() and test (but not test data)

---
 dbstore/cvesearchrow.go     | 15 +++++++++++++++
 dbstore/sql/feed/search.sql | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 47 insertions(+)
 create mode 100644 dbstore/cvesearchrow.go
 create mode 100644 dbstore/sql/feed/search.sql

(limited to 'dbstore')

diff --git a/dbstore/cvesearchrow.go b/dbstore/cvesearchrow.go
new file mode 100644
index 0000000..4128347
--- /dev/null
+++ b/dbstore/cvesearchrow.go
@@ -0,0 +1,15 @@
+package dbstore
+
+import (
+  "github.com/pablotron/cvez/feed"
+)
+
+// CveSearch() result
+type CveSearchRow struct {
+  Id int64 `json:"cve_id"` // internal database CVE ID
+  CveId feed.CveId `json:"nvd_cve_id"` // NVD CVE ID
+  Description string `json:"description"` // CVE description (english)
+  V3BaseScore feed.Score `json:"v3_base_score"` // CVSSv3 base score
+  V3Severity feed.Severity `json:"v3_severity"` // CVSSv3 severity
+  Rank float32 `json:"rank"` // search result rank
+}
diff --git a/dbstore/sql/feed/search.sql b/dbstore/sql/feed/search.sql
new file mode 100644
index 0000000..cb80470
--- /dev/null
+++ b/dbstore/sql/feed/search.sql
@@ -0,0 +1,32 @@
+-- search CVEs
+-- FIXME: should this be moved to cve/search
+SELECT COALESCE(json_group_array(json_object(
+         'cve_id', b.cve_id,
+         'nvd_cve_id', printf('CVE-%4d-%04d', b.cve_year, b.cve_num),
+         'description', d.value,
+         'v3_base_score', e.v3_base_score / 10.0,
+         'v3_severity', f.name,
+         'rank', a.min_rank
+       )), '[]')
+
+  FROM (
+    SELECT cve_id,
+           MIN(rank) AS min_rank
+      FROM cve_fts_all
+     WHERE cve_fts_all MATCH :q
+     GROUP BY cve_id
+  ) a
+  JOIN cves b
+    ON (b.cve_id = a.cve_id)
+  JOIN cve_descriptions c
+    ON (c.cve_id = b.cve_id)
+  JOIN descriptions d
+    ON (d.desc_id = c.desc_id)
+  JOIN item_cvss_v3_impacts e
+    ON (e.item_id = b.item_id)
+  JOIN severities f
+    ON (f.severity_id = e.v3_severity_id)
+ 
+ WHERE d.lang = 'en'
+
+ ORDER BY a.min_rank;
-- 
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