feat(checker): add flac checker (#2459)

Signed-off-by: Fabrice Fontaine <[email protected]>

Author: ffontaine

cve_bin_tool/checkers/__init__.py

@@ -66,6 +66,7 @@
     "ffmpeg",
     "file",
     "firefox",
+    "flac",
     "freeradius",
     "freerdp",
     "fribidi",

cve_bin_tool/checkers/flac.py

@@ -0,0 +1,24 @@
+# Copyright (C) 2022 Orange
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+
+"""
+CVE checker for flac:
+
+https://www.cvedetails.com/product/12329/Flac-Libflac.html?vendor_id=7327
+https://www.cvedetails.com/product/46017/Flac-Project-Flac.html?vendor_id=17957
+
+"""
+from __future__ import annotations
+
+from cve_bin_tool.checkers import Checker
+
+
+class FlacChecker(Checker):
+    CONTAINS_PATTERNS: list[str] = []
+    FILENAME_PATTERNS: list[str] = []
+    VERSION_PATTERNS = [
+        r"flac-([0-9]+\.[0-9]+\.[0-9]+)",
+        r"reference libFLAC ([0-9]+\.[0-9]+\.[0-9]+)",
+    ]
+    VENDOR_PRODUCT = [("flac", "libflac"), ("flac_project", "flac")]

test/condensed-downloads/flac-1.4.2-1.fc38.aarch64.rpm.tar.gz

@@ -0,0 +1,31 @@
+# Copyright (C) 2022 Orange
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+mapping_test_data = [
+    {"product": "flac", "version": "1.4.2", "version_strings": ["flac-1.4.2"]},
+    {
+        "product": "flac",
+        "version": "1.3.0",
+        "version_strings": ["reference libFLAC 1.3.0"],
+    },
+]
+package_test_data = [
+    {
+        "url": "http://rpmfind.net/linux/fedora/linux/development/rawhide/Everything/aarch64/os/Packages/f/",
+        "package_name": "flac-1.4.2-1.fc38.aarch64.rpm",
+        "product": "flac",
+        "version": "1.4.2",
+    },
+    {
+        "url": "http://ftp.fr.debian.org/debian/pool/main/f/flac/",
+        "package_name": "libflac8_1.3.0-3_amd64.deb",
+        "product": "flac",
+        "version": "1.3.0",
+    },
+    {
+        "url": "https://downloads.openwrt.org/releases/packages-19.07/x86_64/packages/",
+        "package_name": "libflac_1.3.3-1_x86_64.ipk",
+        "product": "flac",
+        "version": "1.3.3",
+    },
+]