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add findIpForHostname

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This commit is contained in:
ansgarz 2022-06-07 16:58:17 +02:00
parent 7157dc57dd
commit 744a4b2a86
2 changed files with 76 additions and 7 deletions
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29
src/main/kotlin/org/domaindrivenarchitecture/provs/framework/ubuntu/web/base/Web.kt
View file

@ -2,11 +2,15 @@ package org.domaindrivenarchitecture.provs.framework.ubuntu.web.base
import org.domaindrivenarchitecture.provs.framework.core.Prov
import org.domaindrivenarchitecture.provs.framework.core.ProvResult
import org.domaindrivenarchitecture.provs.framework.ubuntu.filesystem.base.checkFile
import org.domaindrivenarchitecture.provs.framework.ubuntu.filesystem.base.createDirs
import org.domaindrivenarchitecture.provs.framework.ubuntu.filesystem.base.deleteFile
import org.domaindrivenarchitecture.provs.framework.ubuntu.filesystem.base.checkFile
import org.domaindrivenarchitecture.provs.framework.ubuntu.filesystem.base.normalizePath
import org.domaindrivenarchitecture.provs.framework.ubuntu.install.base.aptInstall
import java.net.Inet4Address
import java.net.Inet6Address
import java.net.InetAddress
import java.net.UnknownHostException
/**
@ -54,3 +58,26 @@ fun Prov.downloadFromURL(
ProvResult(true, out = "No sha256sum check requested.")
}
}
/**
* Returns the ip for the given hostname if found else null
*/
fun Prov.findIpForHostname(hostname: String): String? {
val ipText = cmd("dig +short $hostname").out?.trim()
// check if ipText is valid
return try {
val ip: Any = InetAddress.getByName(ipText ?: "")
return if (ip is Inet4Address || ip is Inet6Address) ipText else null
} catch (exception: UnknownHostException) {
null
}
}
/**
* Returns the ip for the given hostname if found else throws a RuntimeExeption
*/
fun Prov.getIpForHostname(hostname: String): String {
return findIpForHostname(hostname) ?: throw RuntimeException("Could not resolve ip for: $hostname")
}

52
src/test/kotlin/org/domaindrivenarchitecture/provs/framework/ubuntu/web/base/WebKtTest.kt
View file

@ -1,8 +1,9 @@
package org.domaindrivenarchitecture.provs.framework.ubuntu.web.base
import org.domaindrivenarchitecture.provs.framework.ubuntu.filesystem.base.checkFile
import org.domaindrivenarchitecture.provs.framework.ubuntu.filesystem.base.createFile
import org.domaindrivenarchitecture.provs.framework.ubuntu.filesystem.base.fileContent
import org.domaindrivenarchitecture.provs.framework.ubuntu.filesystem.base.checkFile
import org.domaindrivenarchitecture.provs.framework.ubuntu.install.base.aptInstall
import org.domaindrivenarchitecture.provs.test.defaultTestContainer
import org.domaindrivenarchitecture.provs.test.tags.ContainerTest
import org.junit.jupiter.api.Assertions.*
@ -56,18 +57,59 @@ internal class WebKtTest {
@Test
fun downloadFromURL_local_file_with_incorrect_checksum() {
// given
val a = defaultTestContainer()
val prov = defaultTestContainer()
val srcFile = "file3.txt"
val targetFile = "file3b.txt"
a.createFile("/tmp/" + srcFile, "hello")
prov.createFile("/tmp/" + srcFile, "hello")
// when
val res = a.downloadFromURL("file:///tmp/" + srcFile, targetFile, "tmp", sha256sum = "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824WRONG", overwrite = true)
val res = prov.downloadFromURL("file:///tmp/" + srcFile, targetFile, "tmp", sha256sum = "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824WRONG", overwrite = true)
// then
val res2 = a.checkFile("tmp/$targetFile")
val res2 = prov.checkFile("tmp/$targetFile")
assertFalse(res.success)
assertFalse(res2)
}
@ContainerTest
fun findIpForHostname_finds_ip() {
// given
val prov = defaultTestContainer()
prov.aptInstall("dnsutils")
// when
val ip = prov.findIpForHostname("localhost")
// then
assertEquals("127.0.0.1", ip)
}
@ContainerTest
fun findIpForHostname_returns_null_if_ip_not_found() {
// given
val prov = defaultTestContainer()
prov.aptInstall("dnsutils")
// when
val ip = prov.findIpForHostname("hostwhichisnotexisting")
// then
assertEquals(null, ip)
}
@Test
fun getIpForHostname_throws_exception_if_ip_not_found() {
// given
val prov = defaultTestContainer()
prov.aptInstall("dnsutils")
val exception = org.junit.jupiter.api.assertThrows<RuntimeException> {
// when
prov.getIpForHostname("hostwhichisnotexisting")
}
// then
assertEquals("Could not resolve ip for: hostwhichisnotexisting", exception.message)
}
}