feat(checker): Add enscript Checker (#1216)

Author: BreadGenie

cve_bin_tool/checkers/__init__.py

@@ -25,6 +25,7 @@
     "dnsmasq",
     "dovecot",
     "dpkg",
+    "enscript",
     "expat",
     "ffmpeg",
     "freeradius",

cve_bin_tool/checkers/enscript.py

@@ -0,0 +1,21 @@
+# Copyright (C) 2021 Intel Corporation
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+
+"""
+CVE checker for enscript
+
+https://www.cvedetails.com/product/1800/?q=Enscript
+
+"""
+from cve_bin_tool.checkers import Checker
+
+
+class EnscriptChecker(Checker):
+    CONTAINS_PATTERNS = [
+        r"set the PostScript language level that enscript",
+        r"or set the environment variable `ENSCRIPT_LIBRARY' to point to your library directory.",
+    ]
+    FILENAME_PATTERNS = [r"enscript"]
+    VERSION_PATTERNS = [r"GNU Enscript ([0-9]+\.[0-9]+\.[0-9]+)"]
+    VENDOR_PRODUCT = [("gnu", "enscript")]

test/condensed-downloads/enscript-1.6.6-7.el7.aarch64.rpm.tar.gz

@@ -16,6 +16,7 @@
     "dnsmasq",
     "dovecot",
     "dpkg",
+    "enscript",
     "expat",
     "ffmpeg",
     "freeradius",

test/condensed-downloads/enscript_1.6.5.90-3_amd64.deb.tar.gz

@@ -0,0 +1,37 @@
+# Copyright (C) 2021 Intel Corporation
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+mapping_test_data = [
+    {
+        "product": "enscript",
+        "version": "1.6.6",
+        "version_strings": [
+            "set the PostScript language level that enscript",
+            "or set the environment variable `ENSCRIPT_LIBRARY' to point to your library directory.",
+            "GNU Enscript 1.6.6",
+        ],
+    },
+    {
+        "product": "enscript",
+        "version": "1.6.5",
+        "version_strings": [
+            "set the PostScript language level that enscript",
+            "or set the environment variable `ENSCRIPT_LIBRARY' to point to your library directory.",
+            "GNU Enscript 1.6.5",
+        ],
+    },
+]
+package_test_data = [
+    {
+        "url": "http://mirror.centos.org/altarch/7/os/aarch64/Packages/",
+        "package_name": "enscript-1.6.6-7.el7.aarch64.rpm",
+        "product": "enscript",
+        "version": "1.6.6",
+    },
+    {
+        "url": "http://archive.ubuntu.com/ubuntu/pool/universe/e/enscript/",
+        "package_name": "enscript_1.6.5.90-3_amd64.deb",
+        "product": "enscript",
+        "version": "1.6.5",
+    },
+]