Signal-Android/buildSrc/src/main/groovy/org/whispersystems/witness/WitnessPlugin.groovy

86 lines
3.2 KiB
Groovy

package org.whispersystems.witness
import org.gradle.api.InvalidUserDataException
import org.gradle.api.Plugin
import org.gradle.api.Project
import org.gradle.api.artifacts.ResolvedArtifact
import java.security.MessageDigest
class WitnessPluginExtension {
List verify
String configuration
}
class WitnessPlugin implements Plugin<Project> {
static String calculateSha256(file) {
MessageDigest md = MessageDigest.getInstance("SHA-256");
file.eachByte 4096, {bytes, size ->
md.update(bytes, 0, size);
}
return md.digest().collect {String.format "%02x", it}.join();
}
void apply(Project project) {
project.extensions.create("dependencyVerification", WitnessPluginExtension)
project.afterEvaluate {
project.dependencyVerification.verify.each {
assertion ->
List parts = assertion[0].tokenize(':')
String group = parts.get(0)
String name = parts.get(1)
String hash = assertion[1]
def artifacts = allArtifacts(project).findAll {
return it.name.equals(name) && it.moduleVersion.id.group.equals(group)
}
if (artifacts.size() > 1) {
throw new InvalidUserDataException("Multiple artifacts found for $group:$name, ${artifacts.size()} found")
}
ResolvedArtifact dependency = artifacts.find()
println "Verifying " + group + ":" + name
if (dependency == null) {
throw new InvalidUserDataException("No dependency for integrity assertion found: " + group + ":" + name)
}
if (!hash.equals(calculateSha256(dependency.file))) {
throw new InvalidUserDataException("Checksum failed for " + assertion)
}
}
}
project.task('calculateChecksums').doLast {
def stringBuilder = new StringBuilder()
stringBuilder.append '// Auto-generated, use ./gradlew calculateChecksums to regenerate\n\n'
stringBuilder.append 'dependencyVerification {\n'
stringBuilder.append ' verify = [\n'
allArtifacts(project)
.findAll { dep -> !dep.id.componentIdentifier.displayName.startsWith('project :') }
.collect { dep -> "['$dep.moduleVersion.id.group:$dep.name:$dep.moduleVersion.id.version',\n '${calculateSha256(dep.file)}']" }
.sort()
.each {
dep -> stringBuilder.append "\n $dep,\n"
}
stringBuilder.append " ]\n"
stringBuilder.append "}\n"
project.file("witness-verifications.gradle").write(stringBuilder.toString())
}
}
private static Set<ResolvedArtifact> allArtifacts(Project project) {
def configurationName = project.dependencyVerification.configuration
project.configurations
.findAll { config -> config.name =~ configurationName }
.collectMany { it.resolvedConfiguration.resolvedArtifacts }
}
}