cve-update-nvd2-native: actually use API keys

There were vestigal remains of API key support which could be removed,
but as using an API key - in theory - gives the user larger rate limits
it's probably wise to expose it.

If the user has an API key, then set NVDCVE_API_KEY.

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit a542de684282bfec79f24ae2f1a2027ffde319d8)
Signed-off-by: Steve Sakoman <steve@sakoman.com>

1 files changed, 12 insertions, 11 deletions

diff --git a/meta/recipes-core/meta/cve-update-nvd2-native.bb b/meta/recipes-core/meta/cve-update-nvd2-native.bb
index 8a48e3ddc3..2f7dad7e82 100644
--- a/meta/recipes-core/meta/cve-update-nvd2-native.bb
+++ b/meta/recipes-core/meta/cve-update-nvd2-native.bb
@@ -17,6 +17,10 @@ deltask do_populate_sysroot
 
 NVDCVE_URL ?= "https://services.nvd.nist.gov/rest/json/cves/2.0"
 
+# If you have a NVD API key (https://nvd.nist.gov/developers/request-an-api-key)
+# then setting this to get higher rate limits.
+NVDCVE_API_KEY ?= ""
+
 # CVE database update interval, in seconds. By default: once a day (24*60*60).
 # Use 0 to force the update
 # Use a negative value to skip the update
@@ -121,19 +125,14 @@ def nvd_request_next(url, api_key, args):
     import http
     import time
 
-    headers = {}
+    request = urllib.request.Request(url + "?" + urllib.parse.urlencode(args))
     if api_key:
-        headers['apiKey'] = api_key
-
-    bb.note("Requesting %s" % str(args))
-
-    data = urllib.parse.urlencode(args)
-
-    full_request = url + '?' + data
+        request.add_header("apiKey", api_key)
+    bb.note("Requesting %s" % request.full_url)
 
     for attempt in range(5):
         try:
-            r = urllib.request.urlopen(full_request)
+            r = urllib.request.urlopen(request)
 
             if (r.headers['content-encoding'] == 'gzip'):
                 buf = r.read()
@@ -144,7 +143,7 @@ def nvd_request_next(url, api_key, args):
             r.close()
 
         except Exception as e:
-            bb.note("CVE database: received error (%s), retrying (request: %s)" % (e, full_request))
+            bb.note("CVE database: received error (%s), retrying" % (e))
             time.sleep(6)
             pass
         else:
@@ -186,9 +185,11 @@ def update_db_file(db_tmp_file, d, database_time):
         bb.note("Updating entries")
         index = 0
         url = d.getVar("NVDCVE_URL")
+        api_key = d.getVar("NVDCVE_API_KEY") or None
+
         while True:
             req_args['startIndex'] = index
-            raw_data = nvd_request_next(url, None, req_args)
+            raw_data = nvd_request_next(url, api_key, req_args)
             if raw_data is None:
                 # We haven't managed to download data
                 return False