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Signed-off-by: Joshua Wang <josh@joshdabo.sh>
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// Copyright 2024 The Witness Contributors | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
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package jenkins | ||
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import ( | ||
"crypto" | ||
"fmt" | ||
"os" | ||
"strings" | ||
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"github.com/in-toto/go-witness/attestation" | ||
"github.com/in-toto/go-witness/cryptoutil" | ||
"github.com/in-toto/go-witness/log" | ||
"github.com/invopop/jsonschema" | ||
) | ||
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const ( | ||
Name = "jenkins" | ||
Type = "https://witness.dev/attestations/jenkins/v0.1" | ||
RunType = attestation.PreMaterialRunType | ||
) | ||
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// This is a hacky way to create a compile time error in case the attestor | ||
// doesn't implement the expected interfaces. | ||
var ( | ||
_ attestation.Attestor = &Attestor{} | ||
_ attestation.Subjecter = &Attestor{} | ||
_ attestation.BackReffer = &Attestor{} | ||
_ JenkinsAttestor = &Attestor{} | ||
) | ||
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type JenkinsAttestor interface { | ||
// Attestor | ||
Name() string | ||
Type() string | ||
RunType() attestation.RunType | ||
Attest(ctx *attestation.AttestationContext) error | ||
Data() *Attestor | ||
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// Subjecter | ||
Subjects() map[string]cryptoutil.DigestSet | ||
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// Backreffer | ||
BackRefs() map[string]cryptoutil.DigestSet | ||
} | ||
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func init() { | ||
attestation.RegisterAttestation(Name, Type, RunType, func() attestation.Attestor { | ||
return New() | ||
}) | ||
} | ||
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type ErrNotJenkins struct{} | ||
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func (e ErrNotJenkins) Error() string { | ||
return "not in a jenkins ci job" | ||
} | ||
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type Attestor struct { | ||
BuildID string `json:"buildid"` | ||
BuildNumber string `json:"buildnumber"` | ||
BuildTag string `json:"buildtag"` | ||
PipelineUrl string `json:"pipelineurl"` | ||
ExecutorNumber string `json:"executornumber"` | ||
JavaHome string `json:"javahome"` | ||
JenkinsUrl string `json:"jenkinsurl"` | ||
JobName string `json:"jobname"` | ||
NodeName string `json:"nodename"` | ||
Workspace string `json:"workspace"` | ||
} | ||
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func New() *Attestor { | ||
return &Attestor{} | ||
} | ||
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func (a *Attestor) Name() string { | ||
return Name | ||
} | ||
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func (a *Attestor) Type() string { | ||
return Type | ||
} | ||
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func (a *Attestor) RunType() attestation.RunType { | ||
return RunType | ||
} | ||
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func (a *Attestor) Schema() *jsonschema.Schema { | ||
return jsonschema.Reflect(&a) | ||
} | ||
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func (a *Attestor) Attest(ctx *attestation.AttestationContext) error { | ||
if _, ok := os.LookupEnv("JENKINS_URL"); !ok { | ||
return ErrNotJenkins{} | ||
} | ||
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a.BuildID = os.Getenv("BUILD_ID") | ||
a.BuildNumber = os.Getenv("BUILD_NUMBER") | ||
a.BuildTag = os.Getenv("BUILD_TAG") | ||
a.PipelineUrl = os.Getenv("BUILD_URL") | ||
a.ExecutorNumber = os.Getenv("EXECUTOR_NUMBER") | ||
a.JavaHome = os.Getenv("JAVA_HOME") | ||
a.JenkinsUrl = os.Getenv("JENKINS_URL") | ||
a.JobName = os.Getenv("JOB_NAME") | ||
a.NodeName = os.Getenv("NODE_NAME") | ||
a.Workspace = os.Getenv("WORKSPACE") | ||
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return nil | ||
} | ||
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func (a *Attestor) Data() *Attestor { | ||
return a | ||
} | ||
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func (a *Attestor) Subjects() map[string]cryptoutil.DigestSet { | ||
subjects := make(map[string]cryptoutil.DigestSet) | ||
hashes := []cryptoutil.DigestValue{{Hash: crypto.SHA256}} | ||
if ds, err := cryptoutil.CalculateDigestSetFromBytes([]byte(a.PipelineUrl), hashes); err == nil { | ||
subjects[fmt.Sprintf("pipelineurl:%v", a.PipelineUrl)] = ds | ||
} else { | ||
log.Debugf("(attestation/jenkins) failed to record jenkins pipelineurl subject: %w", err) | ||
} | ||
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if ds, err := cryptoutil.CalculateDigestSetFromBytes([]byte(a.JenkinsUrl), hashes); err == nil { | ||
subjects[fmt.Sprintf("jenkinsurl:%v", a.JenkinsUrl)] = ds | ||
} else { | ||
log.Debugf("(attestation/jenkins) failed to record jenkins jenkinsurl subject: %w", err) | ||
} | ||
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return subjects | ||
} | ||
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func (a *Attestor) BackRefs() map[string]cryptoutil.DigestSet { | ||
backRefs := make(map[string]cryptoutil.DigestSet) | ||
for subj, ds := range a.Subjects() { | ||
if strings.HasPrefix(subj, "pipelineurl:") { | ||
backRefs[subj] = ds | ||
break | ||
} | ||
} | ||
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return backRefs | ||
} |
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{ | ||
"$schema": "https://json-schema.org/draft/2020-12/schema", | ||
"$ref": "#/$defs/Attestor", | ||
"$defs": { | ||
"Attestor": { | ||
"properties": { | ||
"buildid": { | ||
"type": "string" | ||
}, | ||
"buildnumber": { | ||
"type": "string" | ||
}, | ||
"buildtag": { | ||
"type": "string" | ||
}, | ||
"pipelineurl": { | ||
"type": "string" | ||
}, | ||
"executornumber": { | ||
"type": "string" | ||
}, | ||
"javahome": { | ||
"type": "string" | ||
}, | ||
"jenkinsurl": { | ||
"type": "string" | ||
}, | ||
"jobname": { | ||
"type": "string" | ||
}, | ||
"nodename": { | ||
"type": "string" | ||
}, | ||
"workspace": { | ||
"type": "string" | ||
} | ||
}, | ||
"additionalProperties": false, | ||
"type": "object", | ||
"required": [ | ||
"buildid", | ||
"buildnumber", | ||
"buildtag", | ||
"pipelineurl", | ||
"executornumber", | ||
"javahome", | ||
"jenkinsurl", | ||
"jobname", | ||
"nodename", | ||
"workspace" | ||
] | ||
} | ||
} | ||
} |