File size: 4,492 Bytes
b40c49c
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
"""
Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
SPDX-License-Identifier: MIT-0
"""

from typing import List

from cfnlint.formatters.base import BaseFormatter
from cfnlint.match import Match
from cfnlint.rules import Rules
from cfnlint.version import __version__

Matches = List[Match]


class SARIFFormatter(BaseFormatter):
    """
    SARIF formatter

    This formatter outputs results according to the Static Analysis Results
    Interchange Format (SARIF) Version 2.1.0.

    https://docs.oasis-open.org/sarif/sarif/v2.1.0/csprd01/sarif-v2.1.0-csprd01.html
    """

    schema = "https://docs.oasis-open.org/sarif/sarif/v2.1.0/cos02/schemas/sarif-schema-2.1.0.json"
    version = "2.1.0"

    # The spec defines error, note, warning, and none, see section 3.27.10.
    levelMap = {
        "error": "error",
        "informational": "note",
        "warning": "warning",
    }

    uri_base_id = "EXECUTIONROOT"

    def _to_sarif_level(self, severity):
        return self.levelMap.get(severity, "none")

    def print_matches(self, matches, rules, config):
        """Output all the matches"""

        try:
            import sarif_om as sarif
            from jschema_to_python.to_json import to_json
        except ImportError as e:
            raise ImportError("Missing optional dependencies sarif") from e

        if not rules:
            rules = Rules()

        results = []
        for match in matches:
            results.append(
                sarif.Result(
                    rule_id=match.rule.id,
                    message=sarif.Message(text=match.message),
                    level=self._to_sarif_level(match.rule.severity),
                    locations=[
                        sarif.Location(
                            physical_location=sarif.PhysicalLocation(
                                artifact_location=sarif.ArtifactLocation(
                                    uri=match.filename,
                                    uri_base_id=self.uri_base_id,
                                ),
                                region=sarif.Region(
                                    start_column=match.columnnumber,
                                    start_line=match.linenumber,
                                    end_column=match.columnnumberend,
                                    end_line=match.linenumberend,
                                ),
                            )
                        )
                    ],
                )
            )

        # Output only the rules that have matches
        matched_rules = set(r.rule_id for r in results)

        rules = [
            sarif.ReportingDescriptor(
                id=rule_id,
                short_description=sarif.MultiformatMessageString(
                    text=rules[rule_id].shortdesc
                ),
                full_description=sarif.MultiformatMessageString(
                    text=rules[rule_id].description
                ),
                help_uri=(
                    rules[rule_id].source_url
                    if rules[rule_id]
                    else "https://github.com/aws-cloudformation/cfn-lint/blob/main/docs/rules.md"
                ),
            )
            for rule_id in matched_rules
        ]

        run = sarif.Run(
            tool=sarif.Tool(
                driver=sarif.ToolComponent(
                    name="cfn-lint",
                    short_description=sarif.MultiformatMessageString(
                        text=(
                            "Validates AWS CloudFormation templates against"
                            " the resource specification and additional"
                            " checks."
                        )
                    ),
                    information_uri="https://github.com/aws-cloudformation/cfn-lint",
                    rules=rules,
                    version=__version__,
                ),
            ),
            original_uri_base_ids={
                self.uri_base_id: sarif.ArtifactLocation(
                    description=sarif.MultiformatMessageString(
                        "The directory in which cfn-lint was run."
                    )
                )
            },
            results=results,
        )

        log = sarif.SarifLog(version=self.version, schema_uri=self.schema, runs=[run])

        # IMPORTANT: 'warning' is the default level in SARIF and will be
        # stripped by serialization.
        return to_json(log)